# Patent

## Title
Method and apparatus for improved channel maintenance signaling

## Abstract

Various embodiments are described to address the need for channel maintenance/channel quality signaling that can better utilize reverse link capacity and conserve battery life. Generally expressed, a remote unit (101) enters (403) a high-rate-channel-maintenance mode in which it transmits channel maintenance signaling. When a low-rate condition is met (405), the remote unit enters (407) a low-rate-channel-maintenance mode in which it transmits channel maintenance signaling at either a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode. Then when a high-rate condition is met (409), the remote unit reenters the high-rate-channel-maintenance mode.

## Background
REFERENCE(S) TO RELATED APPLICATION(S)
The present application claims priority from provisional application, Ser. No. 60/684,428, entitled “METHOD AND APPARATUS FOR IMPROVED CHANNEL MAINTENANCE SIGNALING,” filed May 25, 2005, which is commonly owned and incorporated herein by reference in its entirety.


FIELD OF THE INVENTION
The present invention relates generally to wireless communication systems and, in particular, to an apparatus and method for improved channel quality reporting.
BACKGROUND OF THE INVENTION
In existing wireless access technologies such as IEEE 802.16, High Speed Downlink Packet Access (HSDPA), and High Rate Packet Data (HRPD), also known as 1xEV-DO or IS-856, the reverse link transmission of channel quality indications, for example, consume a substantial amount of the available reverse link capacity. In addition, the transmission of CQI (Channel Quality Indicator), DRC (Data Rate Control), and an HS-DPCCH (High Speed Downlink Packet Control Channel), in respective 802.16, HRPD, and HSDPA systems reduces remote unit battery life.
Existing technology addresses these issues by using explicit access network (AN) signaling to toggle remote unit CQI/DRC transmissions. Thus, the AN can thereby enable the remote units to stop transmitting channel quality information when the AN does not need the information. For example, a remote unit may be in a CQI/DRC gating mode in which channel quality information is transmitted on the reverse link in periodic bursts. The AN may signal the remote unit to transition to a CQI/DRC DTX (discontinuous transmission) mode in which the transmission of channel quality information is suspended. Then, when the channel quality information is needed again, the AN signals the remote unit to return to CQI/DRC gating mode. However, such AN signaling to control the remote unit transmit mode also creates additional overhead signaling that itself can become burdensome. This signaling can also create delays by requiring the AN to first signal the remote unit to resume CQI/DRC transmission before the AN proceeds to transmit data to the remote unit.
Therefore, a need exists for an improved apparatus and method for channel maintenance/quality signaling that can better utilize reverse link capacity and conserve battery life.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram depiction of a wireless communication system in accordance with multiple embodiments of the present invention.
FIG. 2 is a block diagram depiction of exemplary signaling timelines that compare prior art signaling with signaling in accordance with multiple embodiments of the present invention.
FIGS. 3A-3G, considered together (hereinafter “FIG. 3”), form a series of exemplary signaling timelines that depict channel maintenance signaling in which different conditions are used to enter a low-rate-channel-maintenance mode, in accordance with multiple embodiments of the present invention.
FIG. 4 is a logic flow diagram of functionality performed by a remote unit in accordance with multiple embodiments of the present invention.
FIG. 5 is a logic flow diagram of functionality performed by an access network (AN) in accordance with multiple embodiments of the present invention.



Specific embodiments of the present invention are disclosed below with reference to FIGS. 1-5. Both the description and the illustrations have been drafted with the intent to enhance understanding. For example, the dimensions of some of the figure elements may be exaggerated relative to other elements, and well-known elements that are beneficial or even necessary to a commercially successful implementation may not be depicted so that a less obstructed and a more clear presentation of embodiments may be achieved. Simplicity and clarity in both illustration and description are sought to effectively enable a person of skill in the art to make, use, and best practice the present invention in view of what is already known in the art. One of skill in the art will appreciate that various modifications and changes may be made to the specific embodiments described below without departing from the spirit and scope of the present invention. Thus, the specification and drawings are to be regarded as illustrative and exemplary rather than restrictive or all-encompassing, and all such modifications to the specific embodiments described below are intended to be included within the scope of the present invention.
DETAILED DESCRIPTION OF THE EMBODIMENTS
Various embodiments are described to address the need for channel maintenance/channel quality signaling that can better utilize reverse link capacity and conserve battery life. Generally expressed, a remote unit enters a high-rate-channel-maintenance mode in which it transmits channel maintenance signaling. When a low-rate condition is met, the remote unit enters a low-rate-channel-maintenance mode in which it transmits channel maintenance signaling at either a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode. Then when a high-rate condition is met, the remote unit reenters the high-rate-channel-maintenance mode.
The disclosed embodiments can be more fully understood with reference to FIGS. 1-5. FIG. 1 is a block diagram depiction of a wireless communication system 100 in accordance with multiple embodiments of the present invention. At present, standards bodies such as OMA (Open Mobile Alliance), 3GPP (3rd Generation Partnership Project), 3GPP2 (3rd Generation Partnership Project 2) and IEEE (Institute of Electrical and Electronics Engineers) 802 are developing standards specifications for wireless telecommunications systems. (These groups may be contacted via http://www.openmobilealliance.com, http://www.3gpp.org/, http://www.3gpp2.com/ and http://www.ieee802. org/, respectively.) Communication system 100 represents a system having an access network that may be based on different wireless technologies. For example, the description that follows will assume that AN 121 is IEEE 802.XX-based, employing wireless technologies such as IEEE's 802.11, 802.16, or 802.20. Being 802.XX-based, AN 121 is additionally modified to implement embodiments of the present invention.
However, alternative embodiments of the present invention may be implemented in communication systems that employ other or additional technologies such as, but not limited to, those described in the 3GPP2 specifications (e.g., CDMA 2000 or High Rate Packet Data (HRPD), which is also known as 1xEV-DO), those described in the 3GPP specifications (e.g., GSM, GPRS, EDGE, W-CDMA, UTRAN, FOMA, UMTS, HSDPA, and HSUPA), those described in the IS-95 (CDMA) specification, 1xEV-DV technologies, and integrated dispatch enhanced network technologies.
More specifically, communication system 100 comprises remote unit 101, access network (AN) 121, and packet network 151. Those skilled in the art will recognize that FIG. 1 does not depict all of the network equipment necessary for system 100 to operate but only those system components and logical entities particularly relevant to the description of embodiments herein. For example, ANs are known to comprise one or more devices such as WLAN (wireless local area network) stations (which include access points (APs), AP controllers/switches, and/or WLAN switches), base transceiver stations (BTSs), base site controllers (BSCs) (which include selection and distribution units (SDUs)), packet control functions (PCFs), packet control units (PCUs), and/or radio network controllers (RNCs). However, none of these devices are specifically shown in FIG. 1.
Instead, AN 121 is depicted in FIG. 1 as comprising processing unit 125, network interface 127, and transceiver 123. In general, components such as processing units, network interfaces, and transceivers are well-known. For example, AN processing units are known to comprise basic components such as, but not limited to, microprocessors, microcontrollers, memory devices, application-specific integrated circuits (ASICs), and/or logic circuitry. Such components are typically adapted to implement algorithms and/or protocols that have been expressed using high-level design languages or descriptions, expressed using computer instructions, expressed using messaging flow diagrams, and/or expressed using logic flow diagrams.
Thus, given an algorithm, a logic flow, a messaging/signaling flow, and/or a protocol specification, those skilled in the art are aware of the many design and development techniques available to implement an AN processing unit that performs the given logic. Therefore, AN 121 represents a known AN that has been adapted, in accordance with the description herein, to implement multiple embodiments of the present invention. Furthermore, those skilled in the art will recognize that aspects of the present invention may be implemented in and across various physical components and none are necessarily limited to single platform implementations. For example, the AN aspect of the present invention may be implemented in any of the AN devices listed above or distributed across such components.
AN 121 uses wireless interfaces 111 and 113 for communication with remote unit 101. Since, for the purpose of illustration, AN 121 is IEEE 802.XX-based, wireless interfaces 111 and 113 correspond to a forward link and a reverse link, respectively, each link comprising a group of IEEE 802.XX-based channels suitably modified to implement embodiments of the present invention.
Remote unit platforms are known to refer to a wide variety of consumer electronic platforms such as, but not limited to, mobile stations (MSs), mobile nodes (MNs), access terminals (ATs), terminal equipment, gaming devices, personal computers, and personal digital assistants (PDAs). In particular, remote unit 101 comprises processing unit 102, transceiver 103, a keypad (not shown), a speaker (not shown), a microphone (not shown), and a display (not shown). Processing units, transceivers, keypads, speakers, microphones, and displays as used in remote units are all well-known in the art.
For example, remote unit processing units are known to comprise basic components such as, but not limited to, microprocessors, digital signal processors (DSPs), microcontrollers, memory devices, application-specific integrated circuits (ASICs), and/or logic circuitry. Such remote unit components are typically adapted to implement algorithms and/or protocols that have been expressed using high-level design languages or descriptions, expressed using computer instructions, expressed using messaging/signaling flow diagrams, and/or expressed using logic flow diagrams. Thus, given an algorithm, a logic flow, a messaging/signaling flow, a call flow, and/or a protocol specification, those skilled in the art are aware of the many design and development techniques available to implement user equipment that performs the given logic. Therefore, remote unit 101 represents a known remote unit that has been adapted, in accordance with the description herein, to implement embodiments of the present invention.
A discussion of certain embodiments in greater detail follows first with reference to FIG. 2. FIG. 2 is a block diagram depiction of exemplary signaling timelines that compare prior art signaling with signaling in accordance with multiple embodiments of the present invention. Prior art techniques for providing channel quality feedback, such as CQI or DRC (data rate control) signaling, via the reverse link are not optimized for uplink-transfer-only situations. Such uplink-only transmission intervals often occur when providing services such as PTT (push-to-talk)/dispatch half duplex calling, for example. A PTT application on a remote unit is aware that it is very unlikely to receive any packets on the forward link for a sustained interval while it is the PTT speaker. In this case, the remote unit would prefer to use channel quality feedback DTX (discontinuous transmission) mode in order to conserve battery life and reduce reverse link interference.
However, it is possible that an unexpected packet will arrive at the infrastructure for transmission to the remote unit via the forward link during this PTT speaker interval. In order to address this possibility, the remote unit and infrastructure should agree upon and use a policy whereby the remote unit will periodically switch to a channel quality feedback gating mode, in which CQI/DRC gated transmission occurs, for a fixed interval of time. In between these intervals the remote unit will use the channel quality feedback DTX mode. If any unexpected packets show up during this substantially uplink-transfer-only interval then the infrastructure can queue the packets until the target remote unit's next agreed-upon channel quality feedback gating mode interval. This operation is depicted in signaling timeline 200. In addition, if the remote unit does begin receiving packets, the remote unit can then be instructed to resume its more continuous gated CQI/DRC transmission.
In addition, prior art techniques for channel quality feedback gating are also not optimized for remote units that are receiving a streaming service. During such streaming services, the infrastructure will occasionally receive a packet destined for the remote unit. Current, standardized channel quality feedback policies require an explicit message when switching between channel quality feedback gating and channel quality feedback DTX modes. An inordinate number of prior art messages would thus be required to toggle the channel quality feedback gating mode before and after each streamed packet. Therefore, the system is unable to fully exploit all the intervals in which the remote unit could otherwise use channel quality feedback DTX mode.
To address this problem, certain embodiments of the present invention provide a single message instructing the remote unit to periodically switch to channel quality feedback gating mode for a predefined interval and to use channel quality feedback DTX mode in between these predefined intervals. In addition, the gated transmission interval can be defined as ending after the remote unit fails to receive any forward traffic channel packets for a given period of time. In this way, the channel quality feedback gating mode can extend longer as needed but without requiring a specific message to change the channel quality feedback mode for each packet. Some of these embodiments are depicted in signaling timeline 250.
More generally, many embodiments of the present invention may be considered with reference to FIGS. 3 and 4. FIG. 4 is a logic flow diagram of functionality performed by a remote unit in accordance with multiple embodiments of the present invention. Logic flow 400 begins (401) when the remote unit enters (403) a high-rate-channel-maintenance mode in which the remote unit transmits channel maintenance signaling. The channel maintenance signaling referred to may include one or more types of signaling such as channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling.
The remote unit remains in the high-rate-channel-maintenance mode until a low-rate condition is satisfied (405). The remote unit then enters (407) a low-rate-channel-maintenance mode in which the remote unit transmits the channel maintenance signaling at either a lower rate or a lower transmit power as compared to its channel maintenance signaling when in the high-rate-channel-maintenance mode. For example, if the channel maintenance signaling includes power control, then the remote unit may send the power control bits at a lower rate while in the low-rate-channel-maintenance mode than when it was previously in the high-rate-channel-maintenance mode. Likewise, for the case where the channel maintenance signaling includes channel quality indication signaling (such as DRC), the remote unit may send the channel quality indications at a lower rate than when the remote unit was in the high-rate-channel-maintenance mode.
The transmission of channel maintenance signaling at a lower rate may even include suspending the channel maintenance signaling altogether. In one example, both the channel quality indication signaling and the reverse dedicated pilot may be suspended in the low-rate-channel-maintenance mode. In another example, when the remote unit enters the low-rate-channel-maintenance mode, transmission of the reverse dedicated pilot is unchanged while the channel quality indication signaling is suspended.
The low-rate condition that triggers the remote unit to enter the low-rate-channel-maintenance mode can be one (or a combination) of many different conditions depending on the particular service being supported or the embodiment implemented. Thus, the low-rate condition may be satisfied by any one of a number of component conditions being satisfied or alternatively by all of a combination of component conditions being satisfied. FIG. 3 includes a series of exemplary signaling timelines that depict channel maintenance signaling in which different conditions are used to enter a low-rate-channel-maintenance mode, in accordance with multiple embodiments of the present invention. For example, signaling timeline 300 depicts CQI signaling by the remote unit in the high-rate-channel-maintenance mode for a period d. As depicted, transmission of the CQI signaling occurs in a gated fashion (having a period p) rather than in a continuous transmit fashion.
Signaling timeline 310 depicts CQI signaling in which the low-rate condition requires a pre-established period of time B to elapse after the remote unit last entered the high-rate-channel-maintenance mode. Signaling timeline 320 depicts CQI signaling in which the low-rate condition requires a pre-established period of time to elapse after link activity completes on a forward link associated with the channel maintenance signaling. Signaling timeline 330 depicts CQI signaling in which the low-rate condition requires a pre-established number of packets (one packet, e.g.) to first be received via the forward link. Signaling timeline 340 depicts CQI signaling in which the low-rate condition requires a pre-established number of bytes (500 bytes, e.g.) to first be received via the forward link. Similar to the examples depicted in timelines 330 and 340, but not additionally depicted, are the cases in which the low-rate condition requires a pre-established number of packets or bytes to first be successfully transmitted via a reverse link. Signaling timeline 350 depicts CQI signaling in which the low-rate condition requires a cumulative number of packets or bytes to first be received via the forward link that total the sum of a pre-established number (one packet, e.g.) for each high-rate initiation point that has passed. Finally, signaling timeline 360 depicts CQI signaling in which the low-rate condition requires a non-cumulative, pre-established number (one packet, e.g.) to first be received via the forward link after any high-rate initiation point.
Thus, the remote unit remains in the high-rate-channel-maintenance mode until a low-rate condition such as one or more of the conditions described above is satisfied (405). The remote unit then enters (407) the low-rate-channel-maintenance mode in which the remote unit transmits the channel maintenance signaling at either a lower rate or a lower transmit power as compared to its channel maintenance signaling when in the high-rate-channel-maintenance mode.
The remote unit remains in the low-rate-channel-maintenance mode until a high-rate condition is satisfied (409). When it is, the remote unit reenters (403) the high-rate-channel-maintenance mode from the low-rate-channel-maintenance mode. The high-rate condition that triggers the remote unit to reenter the high-rate-channel-maintenance mode can be one (or a combination) of many different conditions depending on the particular service being supported or the embodiment implemented. Thus, the high-rate condition may be satisfied by any one of a number of component conditions being satisfied or alternatively by all of a combination of component conditions being satisfied.
For example, the exemplary signaling timelines of FIG. 3 depict channel maintenance signaling in which the high-rate condition requires the time remaining until a next periodic, high-rate initiation point after the remote unit enters the low-rate-channel-maintenance mode to elapse. In other words the arrival of the next periodic initiation point satisfies the condition for reentering the high-rate-channel-maintenance mode. Another high-rate condition may require the remote unit to receive a request from the AN to reenter before reentering the high-rate-channel-maintenance mode. Yet another high-rate condition may be satisfied when the remote unit detects that handoff conditions are present for the remote unit. Finally, another high-rate condition may be satisfied when the remote unit begins receiving data via a forward link associated with the channel maintenance signaling.
In view of the more general description above, operation of certain specific embodiments will be described below with reference first to FIG. 1. In embodiments in which the network sets the channel maintenance signaling policy for the remote unit, the AN may transmit a policy establishment message to the remote unit that includes parameters that define how the different signaling modes should be used. For example, AN processing unit 125 sends an indication to remote unit 101, via transceiver 123 and wireless interface 111, that remote unit 101 should transition from a high-rate-channel-maintenance mode to a low-rate-channel-maintenance mode when a low-rate condition is met and that remote unit 101 should transition from the low-rate-channel-maintenance mode to the high-rate-channel-maintenance mode when a high-rate condition is met.
This low-rate-channel-maintenance mode differs from the high-rate-channel-maintenance mode in that remote unit 101 is to transmit channel maintenance signaling at either a lower rate or a lower transmit power than when remote unit 101 is in the high-rate-channel-maintenance mode. Again, the channel maintenance signaling may include signaling of one or more of the following signaling types: channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling.
In addition, the indication from AN processing unit 125 may also indicate certain configuration information to more explicitly define the signaling mode policy being established. For example, the low-rate and/or high-rate condition that remote unit 101 should use to switch between modes may be indicated. This could simply be an indication that remote unit 101 should periodically reenter the high-rate-channel-maintenance mode when in the low-rate-channel-maintenance mode. Also, the indication could specify the period of time between such high-rate initiation points. Thus, many different combinations exist for which information is explicitly conveyed verses which information is pre-defined, pre-configured, implied, separately negotiated, etc. between remote unit 101 and AN 121.
Remote unit processing unit 102 receives the indication from AN 121 via transceiver 103 and may respond by simply acknowledging the channel maintenance signaling policy indicated or may respond by indicating configuration information itself, possibly as part of a negotiation process with AN 121. In accordance with the established channel maintenance signaling policy, remote unit processing unit 102 enters the high-rate-channel-maintenance mode in which channel maintenance signaling is transmitted via transceiver 103. In some embodiments or in some configurations, processing unit 102 sends an indication to AN processing unit 125, via transceivers 103 and 123, that it is entering the high-rate-channel-maintenance mode.
Then when the low-rate condition is satisfied, processing unit 102 enters the low-rate-channel-maintenance mode in which channel maintenance signaling is transmitted via transceiver 103 at either a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode. Again, in some embodiments or in some configurations, processing unit 102 will send an indication to AN processing unit 125, via transceivers 103 and 123, that it is entering the low-rate-channel-maintenance mode. Then when the high-rate condition is satisfied, processing unit 102 reenters the high-rate-channel-maintenance mode. The high-rate condition that triggers this mode switch may include, whether indicated by AN 121 or not, a situation in which processing unit 102, via transceiver 103, detects that handoff conditions are present and/or it begins receiving data via a forward link of wireless interface 111.
FIG. 5 is a logic flow diagram of functionality performed by an AN in accordance with multiple embodiments of the present invention. Logic flow 500 begins (501) with the AN sending (503) an indication to a remote unit that the remote unit should transition from a high-rate-channel-maintenance mode to a low-rate-channel-maintenance mode when a low-rate condition is met and that the remote unit should transition from the low-rate-channel-maintenance mode to the high-rate-channel-maintenance mode when a high-rate condition is met. The discussion above with respect to FIG. 1 provides an example of this AN operation.
In some embodiments, the AN may also allocate (505) the link resource used by the remote unit while in the high-rate-channel-maintenance mode to another remote unit for at least a portion of the interval in which the remote unit is expected to be in the low-rate-channel-maintenance mode. In this way, the AN can attempt to utilize the link resources freed by the mode switching techniques described herein. In addition, the low-rate and high-rate conditions may be established/configured to facilitate the allocation of freed link resources. For example, the high-rate condition may be configured in order to provide a predictable interval during which another remote unit can be assigned the link resource. Thus, in addition to transmitting a policy establishment message/indication to remote unit 101 to convey how the signaling modes should be used, AN processing unit 125 may also transmit, to another remote unit (not shown) via transceiver 123, a link assignment message that assigns a link resource for a periodically reoccurring interval of time, thereby enabling the reverse link resource to be shared by a plurality of remote units.
In some embodiments, when the AN receives (507) data for the remote unit while the remote unit is in the low-rate-channel-maintenance mode, the AN buffers (509) the data until the remote unit is expected to reenter the high-rate-channel-maintenance mode. The AN, then either anticipating that the remote unit is reentering the high-rate-channel-maintenance mode (perhaps as scheduled) or receiving some indication that it has already reentered the mode, transmits the data to the remote unit and logic flow 500 ends (511).
Thus, in system 100 for example, AN processing unit 125 would receive data from packet network 151 via network interface 127 for remote unit 101. If remote unit 101 is in the low-rate-channel-maintenance mode, AN processing unit 125 would buffer the data until AN processing unit 125 expects remote unit 101 to reenter the high-rate-channel-maintenance mode. In this way, AN 121 can then transmit the data with the support of better channel maintenance signaling from remote unit 101.
Various embodiments have been discussed that illustrate some of the different ways a remote unit and AN can establish a channel maintenance signaling policy. Detailed message definitions for some IEEE 802.16-based embodiments follow. These message definitions provide some very specific examples of how a channel maintenance signaling policy may be established in an IEEE 802.16-based system. Section number references to the present IEEE 802.16 base-lined standard are provided to indicate which portions of the standard are being updated.
8.4.5.4.15 CQICH Enhanced Allocation IE format
Replace Table 302a with







TABLE 302a







CQICH Enhanced allocation IE format










Size



Syntax
(bits)
Notes





CQICH_Enhanced_Alloc_IE( ) {




Extended UIUC
4
0x09


Length
4
Length in bytes of following fields


CQICH_ID
variable
Index to uniquely identify the CQICH resource




assigned to the MS


CQICH_MODE
3
000 = Standard Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count Based




100 = Byte Count Based




101-111 - Reserved for future


If (CQICH_MODE==000) {

Standard Periodic


Period (=p)
3
A CQI feedback is transmitted on the




CQICH every 2{circumflex over ( )}p frames


Frame offset
3
The MS starts reporting at the frame of which the




number has the same 3 LSB as the specified




frame offset. If the current frame is specified, the




MS should start reporting in 8 frames


Duration (=d)
3
A CQI feedback is transmitted on the CQI




channels indexed by the CQICH_ID for 10 × 2{circumflex over ( )}d




frames. If d== 000, the CQICH is deallocated. If




d == 111, the MS should report until the BS




command for the MS to stop.


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode On
3
A CQI feedback is transmitted on the CQICH


(=p)

every 2{circumflex over ( )}p frames while gating mode on


CQI Feedback Duration during
3
While in Gating Mode on, A CQI feedback is


Gating Mode On Duration after

transmitted on the CQI channels indexed by the


initiation point (=B)

CQICH_ID for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame of which the




number has the same 3 LSB as the specified




frame offset. If the current frame is specified, the




MS should start reporting in 8 frames


Period between gating Mode on
3
This is the number of Frames between the


initiation points (=D)

Initiation Points (instants when MSS and




infrastructure must enter Gating Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the gating mode is




considered on - If d== 000, the CQICH is




deallocated. If d == 111, the MS should report




until the BS command for the MS to stop, else the




duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode On
3
A CQI feedback is transmitted on the CQICH


(=p)

every 2{circumflex over ( )}p frames while gating mode on


Inactivity Duration during Gating
3
While in Gating Mode on, if there is no activity


Mode On Duration (=B)

for 2{circumflex over ( )}p × (B+1) frames, then the CQICH is not




transmitted till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame of which the




number has the same 3 LSB as the specified




frame offset. If the current frame is specified, the




MS should start reporting in 8 frames


Period between gating Mode on
3
This is the number of Frames between the


initiation points (=D)

Initiation Points (instants when MSS and




infrastructure must enter Gating Mode On). This




is measured in frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the gating mode is




considered on - If d== 000, the CQICH is




deallocated. If d == 111, the MS should report




until the BS command for the MS to stop, else




the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode On
3
A CQI feedback is transmitted on the CQICH


(=p)

every 2{circumflex over ( )}p frames while gating mode on


Packet Count during Gating Mode
5
A CQI feedback is transmitted on the CQICH


On (=B)

periodically (with period p) until B packets are




received or the durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame of which the




number has the same 3 LSB as the specified




frame offset. If the current frame is specified, the




MS should start reporting in 8 frames


Period between gating Mode on
5
This is the number of Frames between the


initiation points (=D)

Initiation Points (instants when MSS and




infrastructure must enter Gating Mode On). This




is measured in frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the gating mode is




considered on - If d== 000, the CQICH is




deallocated. If d == 111, the MS should report




until the BS command for the MS to stop, else




the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter is relevant in




the case where the required number of packets is




not received before the end of the Gating Mode




Period.




In this case, if cumulative is equal to true, then




the MSS does not enter Channel quality feedback




DTX mode until it receives the packets not yet




received from the prior Gating Mode Period(s) in




addition to the packets for this current Gating




Mode Period.




In this case, if cumulative is equal to false, then




the MSS enters Channel quality feedback DTX




mode as soon as it receives the packets for the




current Gating Mode Period. In other words, it




ignores any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode On
3
A CQI feedback is transmitted on the CQICH


(=p)

every 2{circumflex over ( )}p frames while gating mode on


Packet Count during Gating Mode
5
A CQI feedback is transmitted on the CQICH


On (=B)

periodically (with period p) until B packets are




received or the durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame of which the




number has the same 3 LSB as the specified




frame offset. If the current frame is specified, the




MS should start reporting in 8 frames


Period between gating Mode on
5
This is the number of Frames between the


initiation points (=D)

Initiation Points (instants when MSS and




infrastructure must enter Gating Mode On). This




is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the gating mode is




considered on - If d== 000, the CQICH is




deallocated. If d == 111, the MS should report




until the BS command for the MS to stop, else




the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter is relevant in




the case where the require number of packets is




not received before the end of the Gating Mode




Period.




In this case, if cumulative is equal to true, then




the MSS does not enter Channel quality feedback




DTX mode until it receives the packets not yet




received from the prior Gating Mode Period(s) in




addition to the packets for this current Gating




Mode Period.




In this case, if cumulative is equal to false, then




the MSS enters Channel quality feedback DTX




mode as soon as it receives the packets for the




current Gating Mode Period. In other words, it




ignores any packets which were not received




during prior Gating Mode Period(s).


}


CQICH_Num
4
Number of CQICHs assigned to this




CQICH_ID is (CQICH_Num +1)


For (i=0;i<CQICH_Num+1;i++) {


Feedback Type
3
000 = Fast DL measurement/Default




Feedback with antenna grouping




001 = Fast DL measurement/Default




Feedback with antenna selection




010 = Fast DL measurement/Default




Feedback with reduced code book




011 = Quantized pre-coding weight




feedback 100 = Index to pre-coding




matrix in codebook 101 = Channel




Matrix Information




101 = Per stream power control




110~111 = Reserved


Allocation index
6
Index to the Fast-feedback channel




region marked by UIUC = 0


CQICH Type
2
00 = 6 bit CQI,




01 = DIUC-CQI,




10 = 3 bit CQI (even),




11 = 3 bit CQI(odd)


 }


Band_AMC_Precoding_Mode
1
0 = One common precoder for all bands.




1 = Distinct precoders for the bands with the




highest S/N values, up to the number of short




term precoders fed back as specified by




Nr_Precoders_feedback 3 Nr of




precoders feedback = N


If (Band_AMC_Precoding_Mode
3
Nr of precoders feedback = N


=1)


 {


  Nr_Precoders_feedback (=N)


 }


Padding
variable
The padding bits are used to ensure




the IE size is integer number of bytes.


}









6.3.2.3.43.5 CQICH Control IE

Note that the attached message is actually a subset of the entire current message—only depicting the sections which have changed.
Change Table 95 as follows:







TABLE 95







CQICH_Control IE format









Syntax
Size(bits)
Notes





CQICH_Control_IE( ) {
—
—


CQICH Indicator
1
If the indicator is set to




1, the CQICH_Control




IE follows.


if (CQICH indicator == 1) {
—
—


Allocation Index
6
Index to the channel in




a frame the CQI report




should be transmitted




by the MS.


CQICH_MODE
3
000 = Standard




Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count




Based




100 = Byte Count




Based




101-111 - Reserved




for future


If (CQICH_MODE==000) {

Standard Periodic


Period (p)
2
A CQI feedback is




transmitted on the




CQI channels indexed




by the (CQI Channel




Index) by the MS in




every 2p frames.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames.


Duration (d)
4
A CQI feedback is




transmitted on the




CQI channels indexed




by the (CQI Channel




Index) by the MS for




2(dI) frames. If d is




0b1111, the MS




should report until the




BS commands the MS




to stop.


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is


On (=p)

transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


CQI Feedback Duration
3
While in Gating Mode


during Gating Mode On

on, A CQI feedback is


Duration after initiation point

transmitted on the CQI


(=B)

channels indexed by




the CQICH_ID for




(B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode
3
This is the number of


on initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure must




enter Gating Mode




On).




This is measured in




frames - the period is




2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for




which the gating mode




is considered on - If




d== 000, the CQICH




is deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p ×




(B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is


On (=p)

transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Inactivity Duration during
3
While in Gating Mode


Gating Mode On Duration

on, if there is no


(=B)

activity for 2{circumflex over ( )}p × (B+1)




frames, then the




CQICH is not




transmitted till the




next Gating Mode




initiation period.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode
3
This is the number of


on initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure must




enter Gating Mode




On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for




which the gating mode




is considered on - If




d== 000, the CQICH




is deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is


On (=p)

transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating
5
A CQI feedback is


Mode On (=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received or




the durations D and/or




d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode
5
This is the number of


on initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure must




enter Gating Mode




On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for




which the gating mode




is considered on - If




d== 000, the CQICH




is deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the required




number of packets is




not received before the




end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter Channel




quality feedback DTX




mode until it receives




the packets not yet




received from the prior




Gating Mode Period(s)




in addition to the




packets for this current




Gating Mode Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes




constitute a packet


Period During Gating Mode
3
A CQI feedback is


On (=p)

transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating
5
A CQI feedback is


Mode On (=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received or




the durations D and/or




d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode
5
This is the number of


on initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure must




enter Gating Mode




On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for




which the gating mode




is considered on - If




d== 000, the CQICH




is deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the require




number of packets is




not received before the




end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter Channel




quality feedback DTX




mode until it receives




the packets not yet




received from the prior




Gating Mode Period(s)




in addition to the




packets for this current




Gating Mode Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


} else {
—
—


reserved CQI reporting
3
Shall be set to zero. A


threshold

threshold used by an




MS to report its CINR




using CQI channel; If




0b000, this threshold




is neglected.


}
—
—


}
—
—









6.3.2.3.51 BS HO Request (MOB_BSHO-REQ) message








TABLE 108k







MOB_BSHO-REQ message format









Syntax
Size(bits)
Notes





MOB_BSHO-
—
—


REQ_Message_Format( ) {


. . .


CQICH_ID
variable
Index to uniquely identify he




CQICH resource assigned to the




MS after the MS switched to the




new anchor BS Feedback channel




offset 6 Index to the fast feedback




channel region of the new Anchor




BS marked by UIUC = 0


CQICH_MODE
3
000 = Standard Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count Based




100 = Byte Count Based




101-111 - Reserved for future


If (CQICH_MODE==000) {

Standard Periodic


Period (=p)
2
A CQI feedback is transmitted on




the CQICH every 2p frames


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Duration (=d)
3
A CQI feedback is transmitted on




the CQI channels indexed by the




CQICH_ID for 10x2d frames. If d == 0b000,




the CQI-CH is deallocated.




If d == 0b111, the MS




should report until the BS command




for the MS to stop




MIMO_permutation_feedback_cycle




2 0b00 = No MIMO and




permutation mode feedback 0b01 = the




MIMO and permutation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 4 frames. The first indication




is sent on the 8th CQICH frame.




0b10 = the MIMO mode and




permultation mode indication shall




be transmitted on the CQICH




indexed by the CQICH_ID every 8




frames. The first indication is sent




on the 8th CQICH frame. 0b11 = the




MIMO mode and permultation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 16 frames. The first indication




is sent on the 16th CQICH frame


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration
3
While in Gating Mode on, A CQI


during Gating Mode On

feedback is transmitted on the CQI


Duration after initiation point

channels indexed by the CQICH_ID


(=B)

for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration

no activity for 2{circumflex over ( )}p × (B+1) frames,


(=B)

then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=P)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


}



—
—


. . .









6.3.2.3.53 BS HO Response (MOB_BSHO-RSP) message








TABLE 108m







MOB_BSHO-RSP message format









Syntax
Size(bits)
Notes





MOB-_BSHO-
—
—


RSP_Message_Format( ) {


. . .


CQICH_ID
variable
Index to uniquely identify he




CQICH resource assigned to the




MS after the MS switched to the




new anchor BS


Feedback channel offset
6
Index to the fast feedback channel




region of the new Anchor BS




marked by UIUC=0


CQICH_MODE
3
000 = Standard Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count Based




100 = Byte Count Based




101-111 - Reserved for future


If (CQICH_MODE==000) {

Standard Periodic


Period (=p)
2
A CQI feedback is transmitted on




the CQICH every 2p frames


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Duration (=d)
3
A CQI feedback is transmitted on




the CQI channels indexed by the




CQICH_ID for 10 × 2d frames. If d == 0b000,




the CQI-CH is deallocated.




If d == 0b111, the MS




should report until the BS command




for the MS to stop




MIMO_permutation_feedback_cycle




2 0b000 = No MIMO and




permutation mode feedback 0b01 = the




MIMO and permutation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 4 frames. The first indication




is sent on the 8th CQICH frame.




0b10 = the MIMO mode and




permultation mode indication shall




be transmitted on the CQICH




indexed by the CQICH_ID every 8




frames. The first indication is sent




on the 8th CQICH frame. 0b11 = the




MIMO mode and permultation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 16 frames. The first




indication is sent on the 16th




CQICH frame


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration
3
While in Gating Mode on, A CQI


during Gating Mode On

feedback is transmitted on the CQI


Duration after initiation point

channels indexed by the CQICH_ID


(=B)

for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration

no activity for 2{circumflex over ( )}p × (B+1) frames,


(=B)

then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration
3
While in Gating Mode on, A CQI


during Gating Mode On

feedback is transmitted on the CQI


Duration after initiation point

channels indexed by the CQICH_ID


(=B)

for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration

no activity for 2{circumflex over ( )}p × (B+1) frames,


(=B)

then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration
3
While in Gating Mode on, A CQI


during Gating Mode On

feedback is transmitted on the CQI


Duration after initiation point

channels indexed by the CQICH_ID


(=B)

for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration

no activity for 2{circumflex over ( )}p × (B+1) frames,


(=B)

then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


}
—
—


. . .









8.4.5.3.27 MS_SDMA_DL_IE








TABLE 285u







AAS_SDMA_DL_IE









Syntax
Size (bits)
Notes





AAS_SDMA_DL_IE( ){
—
—


. . .


If (CQICH Allocation Included) {
—
—


Allocation Index
6
Index to the channel




in a frame the CQI




report should be




transmitted by the SS


CQICH_MODE
3
000 = Standard




Periodic




001 = Dual Periodic




010 = Inactivity




Based




011 = Packet Count




Based




100 = Byte Count




Based




101–111 - Reserved




for future


If (CQICH_MODE==000) {

Standard Periodic


Period (p)
3
A CQI feedback is




transmitted on the




CQI channels




indexed by the (CQI




Channel Index) by




the SS in every 2p




frames.


Frame offset
3
The MSS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified,




the MSS should start




reporting in 8 frames.


Duration (d)
4
A CQI feedback is




transmitted on the




CQI channels




indexed by the (CQI




Channel Index) by




the SS for 2(d−1)




frames. If d is




0b0000, the CQICH is




de-allocated. If d is




0b1111, the MSS




should report until the




BS command for the




MSS to stop.


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


CQI Feedback Duration during Gating
3
While in Gating Mode


Mode On Duration after initiation point

on, A CQI feedback is


(=B)

transmitted on the




CQI channels indexed




by the CQICH_ID for




(B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
3
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Inactivity Duration during Gating
3
While in Gating Mode


Mode On Duration (=B)

on, if there is no




activity for 2{circumflex over ( )}p × (B+1)




frames, then




the CQICH is not




transmitted till the




next Gating Mode




initiation period.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
3
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating Mode On
5
A CQI feedback is


(=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received




or the durations D




and/or d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
5
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1)




frames.


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the required




number of packets is




not received before




the end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter




Channel quality




feedback DTX mode




until it receives the




packets not yet




received from the




prior Gating Mode




Period(s) in addition




to the packets for this




current Gating Mode




Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes




constitute a packet


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating Mode On
5
A CQI feedback is


(=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received




or the durations D




and/or d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
5
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the require




number of packets is




not received before




the end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter




Channel quality




feedback DTX mode




until it receives the




packets not yet




received from the




prior Gating Mode




Period(s) in addition




to the packets for this




current Gating Mode




Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


CQI Feedback Duration during Gating
3
While in Gating Mode


Mode On Duration after initiation point

on, A CQI feedback is


(=B)

transmitted on the




CQI channels indexed




by the CQICH_ID for




(B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
3
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Inactivity Duration during Gating
3
While in Gating Mode


Mode On Duration (=B)

on, if there is no




activity for 2{circumflex over ( )}p × (B+1)




frames, then




the CQICH is not




transmitted till the




next Gating Mode




initiation period.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
3
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating Mode On
5
A CQI feedback is


(=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received




or the durations D




and/or d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
5
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1)




frames.


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on -




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the required




number of packets is




not received before




the end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter




Channel quality




feedback DTX mode




until it receives the




packets not yet




received from the




prior Gating Mode




Period(s) in addition




to the packets for this




current Gating Mode




Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes




constitute a packet


Period During Gating Mode On (=p)
3
A CQI feedback is




transmitted on the




CQICH every 2{circumflex over ( )}p




frames while gating




mode on


Packet Count during Gating Mode On
5
A CQI feedback is


(=B)

transmitted on the




CQICH periodically




(with period p) until B




packets are received




or the durations D




and/or d elapse.


Frame offset
3
The MS starts




reporting at the frame




of which the number




has the same 3 LSB as




the specified frame




offset. If the current




frame is specified, the




MS should start




reporting in 8 frames


Period between gating Mode on
5
This is the number of


initiation points (=D)

Frames between the




Initiation Points




(instants when MSS




and infrastructure




must enter Gating




Mode On).




This is measured in




frames - the period is




2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration




for which the gating




mode is considered on-




If d== 000, the




CQICH is




deallocated. If d == 111,




the MS should




report until the BS




command for the MS




to stop, else the




duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting.




This parameter is




relevant in the case




where the require




number of packets is




not received before




the end of the Gating




Mode Period.




In this case, if




cumulative is equal to




true, then the MSS




does not enter




Channel quality




feedback DTX mode




until it receives the




packets not yet




received from the




prior Gating Mode




Period(s) in addition




to the packets for this




current Gating Mode




Period.




In this case, if




cumulative is equal to




false, then the MSS




enters Channel quality




feedback DTX mode




as soon as it receives




the packets for the




current Gating Mode




Period. In other




words, it ignores any




packets which were




not received during




prior Gating Mode




Period(s).


}


}
—
—


. . .









8.4.5.4.23 Anchor BS Switch IE








TABLE 302j







Anchor_BS_switch_IE format









Syntax
Size(bits)
Notes





Anchor_BS_switch_IE( ) {
—
—


. . .


If
—
—


(CQICH_Allocation_Indicator


== 1) {


CQICH_ID
variable
Index to uniquely identify the




CQICH resource assigned to the




MS after the MS switched to the




new anchor BS


Feedback channel offset
6
Index to the Fast-feedback channel




region of the new Anchor BS




marked by UIUC=0


CQICH_MODE
3
000 = Standard Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count Based




100 = Byte Count Based




101–111 - Reserved for future


If (CQICH_MODE==000) {

Standard Periodic


Period (=p)
2
A CQI feedback is transmitted on




the CQICH every 2p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Duration (=d)
3
A CQI feedback is transmitted on




the CQI channels indexed by the




CQICH_ID for 10 × 2d frames. If d ==0b000,




the CQI-CH is de-




allocated. If d ==0b111, the MS




should report until the BS command




for the MS to stop.




MIMO_permutation_feedback_cycle




2 0b00 = No MIMO and




permutation mode feedback 0b01 = the




MIMO and permutation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 4 frames. The first indication




is sent on the 8th CQICH frame.




0b10 = the MIMO mode and




permultation mode indication shall




be transmitted on the CQICH




indexed by the CQICH_ID every 8




frames. The first indication is sent




on the 8th CQICH frame. 0b11 = the




MIMO mode and permultation




mode indication shall be transmitted




on the CQICH indexed by the




CQICH_ID every 16 frames. The




first indication is sent on the 16th




CQICH frame. Reserved Variable




Number of bits required to align to




byte length from CQICH Allocation




Indicator bit field, shall be set to




zero.


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode On
3
A CQI feedback is transmitted on


(=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration during
3
While in Gating Mode on, A CQI


Gating Mode On Duration after

feedback is transmitted on the CQI


initiation point (=B)

channels indexed by the CQICH_ID




for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode on
3
This is the number of Frames


initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode On
3
A CQI feedback is transmitted on


(=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration (=B)

no activity for 2{circumflex over ( )}p × (B+1) frames,




then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode on
3
This is the number of Frames


initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode On
3
A CQI feedback is transmitted on


(=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode on
5
This is the number of Frames


initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}p bytes constitute a packet


Period During Gating Mode On
3
A CQI feedback is transmitted on


(=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode on
5
This is the number of Frames


initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


}
—
—


. . .









8.4.5.4.12 CQICH Allocation IE Format








TABLE 298







CQICH alloc IE format









Syntax
Size
Notes





CQICH_Alloc_IE( ) ( ) {
—
—


Extended DIUC
4 bits
CQICH = 0x03


Length
4 bits
Length of the message in bytes




(variable)


CQICH_ID
vari-
Index to uniquely identify the



able
CQICH resource assigned to the SS




The size of this field is dependent on




system parameter defined in DCD.


Allocation offset
6 bits
Index to the fast feedback channel




region marked by UIUC = 0.


CQICH_MODE
3
000 = Standard Periodic




001 = Dual Periodic




010 = Inactivity Based




011 = Packet Count Based




100 = Byte Count Based




101–111 - Reserved for future


If (CQICH_MODE==000) {

Standard Periodic


Period (p)
2 bits
A CQI feedback is transmitted on




the CQICH every 2p frames.


Frame offset
3 bits
The SS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the SS




should start reporting in 8 frames


Duration (d)
3 bits
A CQI feedback is transmitted on




the CQI channels indexed by the




CQICH_ID for 10 × 2d frames. If d == 0,




the CQI-CH is deallocated. If




d == 0b111, the SS should report




until the BS command for the SS to




stop.




MIMO_permutation_feedback_cycle




2 bits 0b00 = No MIMO and




permutation mode feedback 0b01 = The




MIMO and permutation mode




indication shall be transmitted on the




CQICH indexed by the CQICH_ID




every 4 frames. The first indication




is sent on the 8th CQICH frame.




0b10 = The MIMO mode and




permultation mode indication shall




be transmitted on the CQICH




indexed by the CQICH_ID every 8




frames. The first indication is sent




on the 8th CQICH frame. 0b11 = The




MIMO mode and permultation




mode indication shall be transmitted




on the CQICH indexed by the




CQICH_ID every 16 frames. The




first indication is sent on the 16th




CQICH frame.


}
—
—


If (CQICH_MODE==001) {

Dual Periodic


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


CQI Feedback Duration
3
While in Gating Mode on, A CQI


during Gating Mode On

feedback is transmitted on the CQI


Duration after initiation point

channels indexed by the CQICH_ID


(=B)

for (B+1) × 2{circumflex over ( )}p frames.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is




2{circumflex over ( )}p × (B+1) × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==010) {

Inactivity Based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Inactivity Duration during
3
While in Gating Mode on, if there is


Gating Mode On Duration

no activity for 2{circumflex over ( )}p × (B+1) frames,


(=B)

then the CQICH is not transmitted




till the next Gating Mode initiation




period.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
3
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}(d+1).


}


If (CQICH_MODE==011) {

Packet Count based


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) frames.


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d == 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




required number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


If (CQICH_MODE==100) {

Byte Count based


Packet Size Indicator (=P)
3
10*2{circumflex over ( )}P bytes constitute a packet


Period During Gating Mode
3
A CQI feedback is transmitted on


On (=p)

the CQICH every 2{circumflex over ( )}p frames while




gating mode on


Packet Count during Gating
5
A CQI feedback is transmitted on


Mode On (=B)

the CQICH periodically (with period




p) until B packets are received or the




durations D and/or d elapse.


Frame offset
3
The MS starts reporting at the frame




of which the number has the same 3




LSB as the specified frame offset. If




the current frame is specified, the




MS should start reporting in 8




frames


Period between gating Mode
5
This is the number of Frames


on initiation points (=D)

between the Initiation Points




(instants when MSS and




infrastructure must enter Gating




Mode On).




This is measured in frames - the 




period is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1).


Gating Mode Duration (=d)
3
This is the duration for which the




gating mode is considered on - If




d== 000, the CQICH is deallocated.




If d == 111, the MS should report




until the BS command for the MS to




stop, else the duration is 2{circumflex over ( )}p × 2{circumflex over ( )}(D+1) × 2{circumflex over ( )}d.


Cumulative Mode
1
Cumulative setting. This parameter




is relevant in the case where the




require number of packets is not




received before the end of the




Gating Mode Period.




In this case, if cumulative is equal




to true, then the MSS does not enter




Channel quality feedback DTX




mode until it receives the packets




not yet received from the prior




Gating Mode Period(s) in addition to




the packets for this current Gating




Mode Period.




In this case, if cumulative is equal




to false, then the MSS enters




Channel quality feedback DTX




mode as soon as it receives the




packets for the current Gating Mode




Period. In other words, it ignores




any packets which were not received




during prior Gating Mode Period(s).


}


Padding
vari-
The padding bits is used to ensure



able
the IE size is integer number of




bytes.


}
—
—









Detailed message definitions for some 3GPP2-based embodiments follow. These message definitions provide some very specific examples of how a channel maintenance signaling policy may be established in a 3GPP2-based system. Section number references to the present TSG-C SWG 2.5, stage 3 text are provided to indicate which portions of the standard are being updated.
1.1.6.1.5
The access terminal shall obey the following rules when transmitting the DRC Channel:

    Access terminal shall use DRCLength slots to send a single DRC. The DRC (value and cover) is defined to take effect at the slot boundary following the end of its transmission, and stay in effect for DRCLength slots.
    The DRC (value and cover) shall not change in slots other than T such that:

(T+1−FrameOffset) mod DRCLength=0,
    
        where T is the CDMA System Time in slots.
    
    
    If the DRCGating is equal to 1, the access terminal shall transmit the DRC over a one slot period, starting in slot T that satisfies the following equation:

(T+2−FrameOffset) mod DRCLength=0,
    
        where T is the CDMA System Time in slots.
    
    
    If DRCDTXlnterval is set to 0x01:


The access terminal shall begin the DRC DTX Interval starting in slot T that satisfies the following equation:

(T+1−FrameOffset−DRCLength×DRCDTXStagger) mod (DRCLength×DRCDTXlnterval),

    
    
        where T is the CDMA System Time in slots.
    
    
    The access terminal shall transmit the DRC as indicated by the DRCGating bit.
    The access terminal shall continue to transmit the DRC for at least the period indicated by DRCDTXActivePeriod.
    If the access terminal successfully receives a Forward Traffic Channel Packet addressed to it during the period indicated by DRCDTXActivePeriod, the access terminal shall continue to transmit DRC for an additional period beyond current DRCDTXActivePeriod with length DRCDTXActivePeriod.
    The Access Terminal may discontinue transmission of the DRC Channel at the end of the last DRCDTXActive period









TABLE 11.7.7.1-1







Configurable Values










Attribute





ID
Attribute
Values
Meaning





0xff
DRCGating
0x00
Continuous





transmission




0x01
Discontinuous





transmission


0xfe
DRCLockLength
0x00
DRCLock bit is repeated





8 times.




0x01
DRCLock bit is repeated





16 times.




0x02
DRCLock bit is repeated





32 times.




0x03
DRCLock bit is repeated





64 times.




All other
Reserved




values


0xfd
MultiUserPacketsEnabled
0x00
Use of Multi-User





Packets is disabled




0x01
Use of Multi-User





Packets is enabled




All other
Reserved




values


0xfc
DSCLength
0x08
Length of a single DSC





transmission is 64 slots.




0x01 to
Length of a single DSC




0x20
transmission in units of





8 slots.




All other
Reserved




values


0xfb
DeltaACKChannelGainMUP
0x0c
DeltaACKChannelGain





MUP is 6 dB.




0x00 to
DeltaACKChannelGain




0x12
MUP in units of 0.5 dB.




All other
Reserved




values


0xfa
ShortPacketsEnabledThresh
0x01
ShortPacketsEnabledThresh





is 2048 bits.




0x00
ShortPacketsEnabledThresh





is 1024 bits.




0x02
ShortPacketsEnabledThresh





is 3072 bits.




0x03
ShortPacketsEnabledThresh





is 4096 bits.




All other
Reserved




values


0xf9
DRCDTXSupported
0x00
DRC DTX mode is not





supported




0x01
DRC DTX mode is





supported




0x02 to
Reserved




0xff


0xf8
DRCDTXInterval
0x00
DRC Channel DTX





mode is disabled.




0x01 to
Interval between




0xf0
transitions from DTX to





transmission of DRC





Channel while DRC





Channel is in DTX





mode, in slots.




0xf0 to
Reserved




0xff


0xf7
DRCDTXActivePeriod
0x00
Reserved




0x0a
The DRC Channel is





transmitted during the





first 10 × DRCLength





slots of the





DRCDTXInterval




0x01 to
The number of slots in




0xff
the beginning of the





DRCDTXInterval during





which the DRC Channel





is transmitted = 10 × DRCDTXActivePeriod


0xf6
DRCDTXStagger
0x00 to
Offset, in slots × DRCLength




0x8f
of beginning





of DRC DTX Interval




0x90 to
Reserved




0xff









Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments of the present invention. However, the benefits, advantages, solutions to problems, and any element(s) that may cause or result in such benefits, advantages, or solutions, or cause such benefits, advantages, or solutions to become more pronounced are not to be construed as a critical, required, or essential feature or element of any or all the claims. As used herein and in the appended claims, the term “comprises,” “comprising,” or any other variation thereof is intended to refer to a non-exclusive inclusion, such that a process, method, article of manufacture, or apparatus that comprises a list of elements does not include only those elements in the list, but may include other elements not expressly listed or inherent to such process, method, article of manufacture, or apparatus.
The terms a or an, as used herein, are defined as one or more than one. The term plurality, as used herein, is defined as two or more than two. The term another, as used herein, is defined as at least a second or more. The terms including and/or having, as used herein, are defined as comprising (i.e., open language). The term coupled, as used herein, is defined as connected, although not necessarily directly, and not necessarily mechanically. The terms program, computer program, and computer instructions, as used herein, are defined as a sequence of instructions designed for execution on a computer system. This sequence of instructions may include, but is not limited to, a subroutine, a function, a procedure, an object method, an object implementation, an executable application, an applet, a servlet, a shared library/dynamic load library, a source code, an object code and/or an assembly code.

## Claims

1. A method for improved channel maintenance signaling comprising:
entering a high-rate-channel-maintenance mode by a processor of a remote unit in which a transceiver of the remote unit transmits channel maintenance signaling, wherein channel maintenance signaling comprises signaling of at least one type from the group consisting of channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling;
when a low-rate condition is met, the processor of the remote unit entering a low- rate- channel- maintenance mode in which the transceiver of the remote unit transmits channel maintenance signaling at one of a lower rate or a lower transmit power than when in the high- rate-channel-maintenance mode;
when a high-rate condition is met, the processor of the remote unit reentering the high- rate-channel-maintenance mode from the low-rate-channel-maintenance mode, wherein the high- rate condition comprises a condition from the group consisting of
the remote unit detects that handoff conditions are present,
the remote unit begins receiving data via a forward link associated with the channel maintenance signaling, and
the time remaining until a next periodic, high-rate initiation point after the remote unit enters the low-rate-channel-maintenance mode has elapsed,

and further comprising
receiving an indication from an access network (AN) that the remote unit enter the high-rate-channel-maintenance mode from the low-rate-channel-maintenance mode
wherein the indication that the remote unit enter the high-rate-channel-maintenance mode further indicates configuration information from the group consisting of
the low-rate condition that the remote unit to enter the low-rate-channel-maintenance mode,
a period of time between high-rate initiation points, and
a frame offset for CQI signaling.

2. The method of claim 1, wherein the low-rate condition comprises a condition from the group consisting of:
a pre-established period of time has elapsed since entering the high-rate-channel-maintenance mode,
a pre-established period of time has elapsed since entering the high-rate-channel-maintenance mode without detecting activity on a forward link associated with the channel maintenance signaling,
a pre-established number of packets have been received via a forward link associated with the channel maintenance signaling,
a pre-established number of bytes have been received via a forward link associated with the channel maintenance signaling,
a cumulative number of packets have been received, via a forward link associated with the channel maintenance signaling, totaling the sum of a pre-established number for each high-rate initiation point that has passed,
a cumulative number of bytes have been received via a forward link associated with the channel maintenance signaling, totaling the sum of a pre-established number for each high-rate initiation point that has passed,
a pre-established number of packets have been successfully transmitted via a reverse link, and
a pre-established number of bytes have been successfully transmitted via a reverse link.

3. The method of claim 1, wherein transmitting channel maintenance signaling at one of a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode comprises suspending channel maintenance signaling.

4. The method of claim 1, wherein CQI signaling comprises data rate control (DRC) signaling.

5. The method of claim 1, wherein the channel maintenance signaling comprises channel quality indication signaling but not reverse dedicated pilot signaling.

6. The method of claim 1, wherein transmitting CQI signaling comprises transmitting CQI signaling in accordance with one of a gated transmit pattern or a continuous transmit pattern.

7. The method of claim 1, further comprising
sending an indication to an access network (AN) that the remote unit is entering the low-rate-channel-maintenance mode.

8. The method of claim 1, further comprising
sending an indication to an access network (AN) that the remote unit is entering the high-rate-channel-maintenance mode.

9. A method for improved channel maintenance signaling comprising:
sending, by an access network (AN) to a remote unit, an indication that the remote unit to transition from a high-rate-channel-maintenance mode to a low-rate-channel-maintenance mode when a low-rate condition is met and that the remote unit to transition from the low-rate-channel-maintenance mode to the high-rate-channel-maintenance mode when a high-rate condition is met, wherein the high-rate condition comprises a condition from the group consisting of: the remote unit detects that handoff conditions are present, the remote unit begins receiving data via a forward link associated with the channel maintenance signaling, and the time remaining until a next periodic, high-rate initiation point after the remote unit enters the low-rate-channel-maintenance mode has elapsed,
wherein the high-rate-channel-maintenance mode comprises a mode in which a remote unit transmits channel maintenance signaling, wherein channel maintenance signaling comprises signaling of at least one type from the group consisting of channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling, and wherein the low-rate-channel-maintenance mode comprises a mode in which the remote unit transmits channel maintenance signaling at one of a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode,
and further comprising receiving an indication from the remote unit entering the low-rate- channel-maintenance mode or the high-rate-channel-maintenance mode
wherein the indication further indicates configuration information from the group consisting of
the low-rate condition that the remote unit to enter the low-rate-channel-maintenance mode
the high-rate condition that the remote unit to enter the high-rate-channel-maintenance mode,
a period of time between high-rate initiation points, and
a frame offset for CQI signaling.

10. The method of claim 9, wherein the low-rate condition comprises a condition from the group consisting of:
a pre-established period of time has elapsed since entering the high-rate-channel-maintenance mode,
a pre-established period of time has elapsed since entering the high-rate-channel-maintenance mode without detecting activity on a forward link associated with the channel maintenance signaling,
a pre-established number of packets have been received via a forward link associated with the channel maintenance signaling,
a pre-established number of bytes have been received via a forward link associated with the channel maintenance signaling,
a cumulative number of packets have been received, via a forward link associated with the channel maintenance signaling, totaling the sum of a pre-established number for each high-rate initiation point that has passed,
a cumulative number of bytes have been received via a forward link associated with the channel maintenance signaling, totaling the sum of a pre-established number for each high-rate initiation point that has passed,
a pre-established number of packets have been successfully transmitted via a reverse link, and
a pre-established number of bytes have been successfully transmitted via a reverse link.

11. The method of claim 9, further comprising
buffering, by the AN, data for delivery to the remote unit until the remote unit is expected to reenter the high-rate-channel-maintenance mode.

12. The method of claim 9, further comprising
allocating a reverse link resource, used by the remote unit while in the high-rate-channel-maintenance mode, to a second remote unit for at least a portion of the interval in which the remote unit is expected to be in the low-rate-channel-maintenance mode.

13. The method of claim 12, further comprising
sending a reverse link assignment message that assigns a reverse link resource to the second remote unit for a periodically reoccurring interval of time, thereby enabling the reverse link resource to be shared by a plurality of remote units.

14. A remote unit comprising:
a transceiver;
a processing unit, communicatively coupled to the transceiver,
adapted to enter a high-rate-channel-maintenance mode in which channel maintenance signaling is transmitted via the transceiver, wherein channel maintenance signaling comprises signaling of at least one type from the group consisting of channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling,
adapted to enter, when a low-rate condition is met, a low-rate-channel-maintenance mode in which channel maintenance signaling is transmitted via the transceiver at one of a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode, and
adapted to reenter, when a high-rate condition is met, the high-rate-channel-maintenance mode from the low-rate-channel-maintenance mode, wherein
the high-rate condition comprises a condition from the group consisting of the remote unit detects that handoff conditions are present, the remote unit begins receiving data via a forward link associated
with the channel maintenance signaling, and the time remaining until a next periodic, high-rate initiation point
after the remote unit enters the low-rate-channel-maintenance mode has elapsed,
and further comprising receiving an indication from the remote unit entering the low-rate-channel-maintenance mode or the high-rate-channel-maintenance mode
wherein the indication further indicates configuration information from the group consisting of
the low-rate condition that the remote unit to enter the low-rate-channel-maintenance mode.
the high-rate condition that the remote unit to enter the high-rate-channel-maintenance mode,
a period of time between high-rate initiation points, and
a frame offset for CQI signaling.

15. An access network (AN) comprising:
a transceiver
a network interface;
a processing unit, communicatively coupled to the transceiver and the network interface,
adapted to send, to a remote unit via the transceiver, an indication that the remote unit to transition from a high-rate-channel-maintenance mode to a low-rate-channel-maintenance mode when a low-rate condition is met and that the remote unit to transition from the low-rate-channel-maintenance mode to the high-rate-channel-maintenance mode when a high-rate condition is met, wherein the high-rate condition comprises a condition from the group consisting of: the remote unit detects that handoff conditions are present, the remote unit begins receiving data via a forward link associated with the channel maintenance signaling, and the time remaining until a next periodic, high-rate initiation point after the remote unit enters the low-rate-channel-maintenance mode has elapsed,
wherein the high-rate-channel-maintenance mode comprises a mode in which a remote unit transmits channel maintenance signaling, wherein channel maintenance signaling comprises signaling of at least one type from the group consisting of channel quality indication (CQI) signaling, power control signaling, reverse dedicated pilot signaling, forward dedicated pilot signaling, and ACK/NACK signaling, and
wherein the low-rate-channel-maintenance mode comprises a mode in which the remote unit transmits channel maintenance signaling at one of a lower rate or a lower transmit power than when in the high-rate-channel-maintenance mode,
and further comprising
receiving an indication from the access network that the remote unit enter the high-rate-channel-maintenance mode from the low-rate-channel-maintenance mode
wherein the indication that the remote unit enter the high-rate-channel-maintenance mode further indicates configuration information from the group consisting of
the low-rate condition that the remote unit to enter the low-rate-channel-maintenance mode.
a period of time between high-rate initiation points, and
a frame offset for CQI signaling.