Patent Description:
The present disclosure relates generally to communication systems, and more particularly, to a scheduling request (SR) collection through a licensed radio access technology (RAT).

An example telecommunication standard is Long Term Evolution (LTE). LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by Third Generation Partnership Project (3GPP). LTE is designed to support mobile broadband access through improved spectral efficiency, lowered costs, and improved services using OFDMA on the downlink, SC-FDMA on the uplink, and multiple-input multiple-output (MIMO) antenna technology. However, as the demand for mobile broadband access continues to increase, there exists a need for further improvements in LTE technology. <CIT> and <CIT> describe methods for handling resource requests including master and slave base stations. <CIT> describes a millimeter-wave (mmW) communication system. <CIT>, which was published after the priority date of the current application, describes relay link communication.

In millimeter-wave (mmW) systems, a physical uplink control channel (PUCCH) may be dynamically allocated to an active user equipment (UE). Some inactive UEs may need to send a scheduling request (SR) to a base station, but the inactive UEs may lack the resources in the PUCCH to transmit an SR. Such a UE, through previously inactive, may transmit an SR through a license-assisted mechanism. For example, a previously inactive UE may transmit an SR through a Long Term Evolution (LTE) radio access technology (RAT) or through another <NUM> system that operates in a spectrum sub-six (<NUM>) gigahertz (GHz).

The macro cells include eNBs.

A network that includes both small cell and macro cells may be known as a heterogeneous network. The communication links <NUM> may use MIMO antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity. The base stations <NUM> / UEs <NUM> may use spectrum up to Y MHz (e.g., <NUM>, <NUM>, <NUM>, <NUM>) bandwidth per carrier allocated in a carrier aggregation of up to a total of Yx MHz (x component carriers) used for transmission in each direction. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or less carriers may be allocated for DL than for UL).

When operating in an unlicensed frequency spectrum, the small cell <NUM>' may employ LTE and use the same <NUM> unlicensed frequency spectrum as used by the Wi-Fi AP <NUM>. The small cell <NUM>', employing LTE in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network. LTE in an unlicensed spectrum may be referred to as LTE-unlicensed (LTE-U), licensed assisted access (LAA), or MuLTEfire.

The wireless communications system and an access network <NUM> may include a millimeter wave (mmW) base station <NUM>. In one aspect, the mmW base station <NUM> may be integrated with a base station. The mmW base station <NUM> may operate in mmW frequencies and/or near mmW frequencies in communication with the UE <NUM>.

The IP Services <NUM> may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service (PSS), and/or other IP services.

The base station may also be referred to as a Node B, evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), or some other suitable terminology. The base station <NUM> provides an access point to the EPC <NUM> for a UE <NUM>. Examples of UEs <NUM> include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a tablet, a smart device, a wearable device, or any other similar functioning device.

Referring again to <FIG>, in certain aspects, the UE <NUM> may be configured to transmit a scheduling request (SR) <NUM> to a base station <NUM>. In aspects, the UE <NUM> may transmit the SR using a first RAT, such as LTE or a <NUM> RAT operating sub-six (<NUM>) gigahertz (GHz). In aspects, the SR may be associated with a millimeter-wave (mmW) system, which may be collocated with the base station <NUM> (e.g., the mmW base station <NUM>).

The base station <NUM> (which may be collocated with the mmW base station <NUM>) may be configured to generate an uplink grant based on the SR. The base station <NUM> may be configured to send, using the mmW system, the uplink grant to the UE <NUM>. The UE <NUM> may then communicate in the mmW system based on the uplink grant, such as by communicating with the mmW base station <NUM>.

<FIG> is a diagram <NUM> illustrating an example of a DL frame structure in LTE. <FIG> is a diagram <NUM> illustrating an example of channels within the DL frame structure in LTE. <FIG> is a diagram <NUM> illustrating an example of an UL frame structure in LTE. <FIG> is a diagram <NUM> illustrating an example of channels within the UL frame structure in LTE. In LTE, a frame (<NUM>) may be divided into <NUM> equally sized subframes. Each subframe may include two consecutive time slots. A resource grid may be used to represent the two time slots, each time slot including one or more time concurrent resource blocks (RBs) (also referred to as physical RBs (PRBs)). In LTE, for a normal cyclic prefix, an RB contains <NUM> consecutive subcarriers in the frequency domain and <NUM> consecutive symbols (for DL, OFDM symbols; for UL, SC-FDMA symbols) in the time domain, for a total of <NUM> REs. For an extended cyclic prefix, an RB contains <NUM> consecutive subcarriers in the frequency domain and <NUM> consecutive symbols in the time domain, for a total of <NUM> REs.

As illustrated in <FIG>, some of the REs carry DL reference (pilot) signals (DL-RS) for channel estimation at the UE. The DL-RS may include cell-specific reference signals (CRS) (also sometimes called common RS), UE-specific reference signals (UE-RS), and channel state information reference signals (CSI-RS). <FIG> illustrates CRS for antenna ports <NUM>, <NUM>, <NUM>, and <NUM> (indicated as R<NUM>, R<NUM>, R<NUM>, and R<NUM>, respectively), UE-RS for antenna port <NUM> (indicated as R<NUM>), and CSI-RS for antenna port <NUM> (indicated as R). <FIG> illustrates an example of various channels within a DL subframe of a frame. The physical control format indicator channel (PCFICH) is within symbol <NUM> of slot <NUM>, and carries a control format indicator (CFI) that indicates whether the physical downlink control channel (PDCCH) occupies <NUM>, <NUM>, or <NUM> symbols (<FIG> illustrates a PDCCH that occupies <NUM> symbols). The PDCCH carries downlink control information (DCI) within one or more control channel elements (CCEs), each CCE including nine RE groups (REGs), each REG including four consecutive REs in an OFDM symbol. A UE may be configured with a UE-specific enhanced PDCCH (ePDCCH) that also carries DCI. The ePDCCH may have <NUM>, <NUM>, or <NUM> RB pairs (<FIG> shows two RB pairs, each subset including one RB pair). The physical hybrid automatic repeat request (ARQ) (HARQ) indicator channel (PHICH) is also within symbol <NUM> of slot <NUM> and carries the HARQ indicator (HI) that indicates HARQ acknowledgement (ACK) / negative ACK (NACK) feedback based on the physical uplink shared channel (PUSCH). The primary synchronization channel (PSCH) is within symbol <NUM> of slot <NUM> within subframes <NUM> and <NUM> of a frame, and carries a primary synchronization signal (PSS) that is used by a UE to determine subframe timing and a physical layer identity. The secondary synchronization channel (SSCH) is within symbol <NUM> of slot <NUM> within subframes <NUM> and <NUM> of a frame, and carries a secondary synchronization signal (SSS) that is used by a UE to determine a physical layer cell identity group number. Based on the PCI, the UE can determine the locations of the aforementioned DL-RS. The physical broadcast channel (PBCH) is within symbols <NUM>, <NUM>, <NUM>, <NUM> of slot <NUM> of subframe <NUM> of a frame, and carries a master information block (MIB). The MIB provides a number of RBs in the DL system bandwidth, a PHICH configuration, and a system frame number (SFN).

As illustrated in <FIG>, some of the REs carry demodulation reference signals (DM-RS) for channel estimation at the eNB. The UE may additionally transmit sounding reference signals (SRS) in the last symbol of a subframe. The SRS may be used by an eNB for channel quality estimation to enable frequency-dependent scheduling on the UL. <FIG> illustrates an example of various channels within an UL subframe of a frame. A physical random access channel (PRACH) may be within one or more subframes within a frame based on the PRACH configuration. The PRACH may include six consecutive RB pairs within a subframe. The PRACH allows the UE to perform initial system access and achieve UL synchronization. A physical uplink control channel (PUCCH) may be located on edges of the UL system bandwidth.

In one aspect, the base station <NUM> may be a base station providing a macro cell, such as an eNB. In another aspect, the base station <NUM> may be a mmW base station. In yet another aspect, the base station <NUM> may include a mmW base station that is integrated with another base station, such as a base station providing a macro cell.

Radio waves in the band may be referred to as a millimeter wave (mmW). Near mmW may extend down to a frequency of <NUM> with a wavelength of <NUM> millimeters (the super high frequency (SHF) band extends between <NUM> and <NUM>, also referred to as centimeter wave). While the disclosure herein references mmWs, it should be understood that the disclosure also applies to near mmWs. Further, while the disclosure herein refers to mmW base stations, it should be understood that the disclosure also applies to near mmW base stations. The millimeter wavelength RF channel has extremely high path loss and a short range. In order to build a useful communication network in the millimeter wavelength spectrum, a beamforming technique may be used to compensate for the extreme high path loss. The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction. Using the beamforming technique, non-line of sight (NLOS) RF communication in the millimeter wavelength spectrum may rely on reflection and/or diffraction of the beams to reach the UE. If the direction becomes blocked, either because of the UE movement or changes in the environment (e.g., obstacles, humidity, rain, etc.), the beam may not be able to reach the UE. The beamforming technique requires that the mmW base stations and the UEs transmit and receive in a direction that allows the most RF energy to be collected. Accordingly, without knowing the directions for the beamforming, a reliable link between the UEs and the mmW base stations cannot be made. Without a reliable link, UEs cannot discover the millimeter wavelength access network. In particular, without a reliable link, network parameter initialization, secure handshaking processes between the network and the UEs, and network state tracking processes cannot be performed.

Wireless-communication techniques and methods are provided infra with respect to uplink scheduling in assisted (e.g., LTE assisted) millimeter wavelength wireless access networks.

<FIG> is a diagram of a wireless communications system <NUM>. The wireless communications system <NUM> may include at least a UE <NUM>, a mmW base station <NUM>, and a macro eNB <NUM>. In one aspect, the mmW base station <NUM> and the macro eNB <NUM> may be collocated - e.g., the mmW base station <NUM> and the eNB <NUM> may be housed in a same device housing. According to one aspect, the eNB <NUM> may be associated with a first network, such as an LTE network or a fifth generation (<NUM>) network that operates at sub-<NUM>. The mmW base station <NUM> may be associated with a second network that operates at a higher frequency than the first network, such as a mmW or near-mmW network.

Referring to <FIG>, the UE <NUM> may discover the macro eNB <NUM>. The UE <NUM> may perform a random access procedure with the eNB <NUM> and may camp on a cell associated with the macro eNB <NUM>. Similarly, the UE <NUM> may discover the mmW base station <NUM>. The UE <NUM> may perform a random access procedure with the mmW base station <NUM>.

For the mmW system associated with the mmW base station <NUM>, a PUCCH may be dynamically allocated to a UE. A PUCCH may be dynamically allocated to a UE when the UE is active (e.g., RRC Connected mode). In another aspect, a UE may need to send a scheduling request (SR). The SR may be used to request uplink shared channel resources for a new transmission. For example, a UE may need to send an SR to the mmW base station <NUM> when the UE <NUM> is inactive (in the claimed invention: RRC Idle mode, the UE <NUM> transitions from a discontinuous reception cycle (DRX) low-power state to a DRX high-power state, or the UE <NUM> does not have an uplink grant). In accordance with the claimed invention, an inactive UE lacks the resources of the PUCCH to transmit an SR. In the context of <FIG> and in the claimed invention, the UE <NUM> lacks resources of the PUCCH to transmit an SR to the mmW base station <NUM>. Accordingly, the UE <NUM> may transmit an SR through a license-assisted mechanism, for example, when the UE <NUM> is inactive.

According to one aspect, the UE <NUM> may determine that the UE <NUM> has data to transmit to the mmW base station <NUM> - e.g., the UE <NUM> may determine that the UE <NUM> has data to transmit to the mmW base station <NUM> based on higher layers of the UE <NUM> (e.g., application layer). That is, the UE <NUM> may determine that the UE <NUM> is to transmit an SR based on an uplink transmission that the UE <NUM> is to transmit.

In the claimed invention, the UE <NUM> determines that the UE is inactive with respect to the mmW base station <NUM>. For example, the UE <NUM> may perform the random access procedure with the mmW base station <NUM>, but the UE <NUM> may not have an uplink transmission to transmit to the mmW base station <NUM> immediately following the random access procedure. In the claimed invention, the UE <NUM> lacks resources of the PUCCH to transmit an SR, for example, after a period of time following the random access procedure with the mmW base station <NUM> (e.g., the UE <NUM> may transition to a low-power DRX state, which may cause PUCCH resources to be reallocated from the UE <NUM> to a different UE). Thus, the UE <NUM> may determine that the UE <NUM> has an uplink transmission to transmit to the mmW base station <NUM> but lacks uplink control resources of the PUCCH on which to send the SR in order to receive an uplink grant for transmission of the uplink transmission.

In the claimed invention, the UE <NUM> transmits an SR <NUM> through the first network to the eNB <NUM> - e.g., the UE <NUM> may have resources of a PUCCH associated with the eNB <NUM> on which to send an SR. Therefore, the UE <NUM> transmits an SR to the eNB <NUM> in the first network. The SR is associated with an uplink grant in the second network. The SR indicates that the UE <NUM> is requesting resources (e.g., an uplink grant) in the second mmW network, even though the SR is transmitted through the first network.

The eNB <NUM> may receive the SR from the UE <NUM> in the first network. The eNB <NUM> may determine that the SR is not for an uplink grant in the first network and/or not for the eNB <NUM>. Accordingly, the eNB <NUM> may provide information <NUM> associated with the SR for the UE <NUM> to the mmW base station <NUM>. In one aspect, the eNB <NUM> may provide the information <NUM> associated with the SR to the mmW base station <NUM> in the first network. In another aspect, the eNB <NUM> may provide the information <NUM> associated with the SR to the mmW base station <NUM> in the second network. In another aspect, the eNB <NUM> may provide the information <NUM> associated with the SR to the mmW base station <NUM> over a different network, such as a wireline or backhaul network. In one aspect, the eNB <NUM> and the mmW base station <NUM> are collocated and, therefore, the information <NUM> associated with the SR may be provided to the mmW base station <NUM> via internal circuitry.

In response to the information <NUM>, the mmW base station <NUM> may allocate or schedule resources for the UE <NUM> in the second network. The mmW base station <NUM> may generate a message indicating the uplink grant. The mmW base station <NUM> transmits, in the second network, the uplink grant <NUM> to the UE <NUM> based on the SR information <NUM>.

In an alternative aspect not being part of the claimed invention, the mmW base station <NUM> may provide the uplink grant <NUM> to the eNB <NUM> (e.g., in the first network or the second network). The eNB <NUM> may then transmit the uplink grant <NUM> to the UE <NUM> in the first network.

Based on the uplink grant <NUM>, the UE <NUM> transmits an uplink transmission <NUM> to the mmW base station <NUM> in the second network. The UE <NUM> then transmits the uplink transmission in the second network to the mmW base station <NUM> based on the uplink grant <NUM>. The uplink transmission <NUM> may include any information, such as data and/or control information.

Although <FIG> illustrates the mmW base station <NUM> as a single transmission point, the present disclosure comprehends aspects in which the wireless communications system <NUM> includes a plurality of transmission points that are configured to provide mmW and/or near-mmW services. For example, the wireless communications system <NUM> may include several mmW base stations that are similar to the mmW base station <NUM>. Accordingly, the present disclosure comprehends aspects in which a first transmission point (e.g., the mmW base station <NUM>) receives the SR information <NUM>, but the uplink transmission is sent by the UE <NUM> to a second transmission point (e.g., a mmW base station similar to the mmW base station <NUM>).

<FIG> is a flowchart illustrating a method <NUM> of wireless communication by a UE. In an aspect, the method <NUM> may be performed by the UE <NUM> of <FIG>.

Beginning first with operation <NUM>, the UE may perform a random access (RACH) procedure with a mmW base station. In the context of <FIG>, the UE <NUM> may perform a RACH procedure with the mmW base station <NUM>.

At operation <NUM>, the UE may determine if the UE has an uplink transmission to send to the mmW base station in a mmW network. Operation <NUM> may not be performed immediately after operation <NUM>, e.g., the UE may cycle through one or more DRX cycles and may not be considered active with respect to the mmW base station. In one aspect of operation <NUM>, the UE may generate an SR associated with the uplink transmission in the mmW network. For example, the UE may determine that the UE has an uplink transmission to transmit but does not have an uplink grant. In the context of <FIG>, the UE <NUM> may determine if the UE <NUM> has an uplink transmission to send to the mmW base station <NUM> in the second network.

In the claimed invention at <NUM>, the UE determines if the UE has resources allocated for an SR on the PUCCH associated with the mmW base station. If the UE is considered inactive, the UE lacks resources on the PUCCH associated with the mmW base station because, in mmW systems, PUCCH resources may be dynamically allocated to active UEs and not inactive UEs. Thus, in the claimed invention, the UE determines that the UE is to send an SR in order to transmit the uplink transmission, but the UE lacks resources of the PUCCH associated with the mmW base station on which to transmit (the UE lacks resources on which to transmit the SR). In the context of <FIG>, the UE <NUM> determines whether the UE has resources allocated for an SR on the PUCCH associated with the mmW base station <NUM>.

If the UE lacks resources on the PUCCH associated with the mmW base station, the UE proceeds to operation <NUM>. At operation <NUM>, the UE transmits the SR in another network, different from the mmW network in which the UE transmits the uplink transmission to the mmW base station. In one aspect, the UE may transmit the SR in an LTE network. In another aspect, the UE may transmit the SR in a <NUM> network that operates at sub-<NUM>. The UE transmits the SR to a base station that is different from the mmW base station (e.g., an eNB). In the context of <FIG>, the UE <NUM> transmits the SR <NUM> to the eNB <NUM> in the first network.

At operation <NUM>, the UE receives an uplink grant based on the SR. The UE receives the uplink grant in the mmW network. The UE receives the uplink grant from the mmW base station. In the context of <FIG>, the UE <NUM> receives the uplink grant <NUM> in the second network from the mmW base station <NUM>.

At operation <NUM>, the UE transmits the uplink transmission to the mmW base station based on the uplink grant. The UE transmits the uplink transmission in the mmW network. In the context of <FIG>, the UE <NUM> transmits, based on the uplink grant <NUM>, the uplink transmission <NUM> to the mmW base station <NUM> in the second network.

<FIG>, which is useful for an understanding of the current invention, is a flowchart illustrating a method <NUM> of wireless communication by a base station. In an aspect, the method <NUM> may be performed by the mmW base station <NUM> and/or the eNB <NUM> of <FIG>. Although the method <NUM> illustrates a plurality of operations, it will be appreciated that one or more operations may be omitted from the method <NUM>. Additionally, one or more operations of the method <NUM> may be transposed and/or contemporaneously performed.

Beginning first with operation <NUM>, the mmW base station may perform a RACH procedure with a UE. In the context of <FIG>, the mmW base station <NUM> may perform a RACH procedure with the UE <NUM>.

In various aspects of mmW systems, the mmW base station may not allocate resources for UEs that are inactive. For example, the mmW base station may dynamically allocate PUCCH resources to active UEs and, therefore, some inactive UEs may need to send an SR to the mmW base station but lack resources on the PUCCH to transmit the SR. Consequently, while the mmW base station and the UE may have performed a RACH procedure, the mmW base station may not have allocated resources on a PUCCH for that UE to send an SR.

At operation <NUM>, the mmW base station may receive an SR associated with the UE. In an aspect, the mmW base station may receive the SR in a different network than the mmW network. For example, the SR may be received through an LTE or <NUM> network, but the SR may be associated with a mmW (or near mmW) network. In an aspect, the mmW base station may receive the SR from another device, different from the UE, such as a base station or eNB. In the context of <FIG>, the mmW base station <NUM> may receive the SR information <NUM> for the UE <NUM> from the eNB <NUM>.

At operation <NUM>, the mmW base station may generate an uplink grant for the UE in the mmW network based on the SR. In an aspect, the mmW base station may allocate and/or schedule resources for the UE to transmit an uplink transmission to the mmW base station. In the context of <FIG>, the mmW base station <NUM> may generate an uplink grant for the UE <NUM> based on the SR information <NUM>.

At operation <NUM>, the mmW base station may transmit the uplink grant to the UE. In an aspect, the mmW base station may transmit the uplink grant to the UE in the mmW network. In the context of <FIG>, the mmW base station <NUM> may transmit the uplink grant <NUM> in the second network to the UE <NUM>.

At operation <NUM>, the mmW base station may receive an uplink transmission in the mmW network from the UE based on the uplink grant. In the context of <FIG>, the mmW base station <NUM> may receive the uplink transmission <NUM> in the second network from the UE <NUM>.

<FIG> is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an exemplary apparatus <NUM>. The apparatus may be a UE, such as the UE <NUM>.

The apparatus <NUM> may include a reception component <NUM> configured to receive signals from a mmW base station <NUM> and/or an eNB <NUM>. The apparatus <NUM> may include a transmission component <NUM> configured to transmit signals to the mmW base station <NUM> and/or the eNB <NUM>. The reception component <NUM> and/or the transmission component <NUM> may be configured to operate in both a first network (e.g., an LTE or <NUM> network) and a second network (e.g., a mmW or near-mmW network).

In an aspect, the apparatus <NUM> may include an uplink transmission component <NUM>. The uplink transmission component <NUM> may determine an uplink transmission to be transmitted to the mmW base station <NUM>. However, the apparatus <NUM> may lack resources to transmit the uplink transmission. For example, the apparatus <NUM> may be considered inactive.

In an aspect, the uplink transmission component <NUM> may provide an indication of an uplink transmission that is to be transmitted in the second network. The SR component <NUM> may generate an SR based on the uplink transmission that is to be transmitted in the second network. The SR component <NUM> may provide the SR to the transmission component <NUM>. The transmission component <NUM> may send, in the first network to the eNB <NUM>, the SR.

The eNB <NUM> may provide the SR to the mmW base station <NUM>. The mmW base station <NUM> may allocate resource(s) for the apparatus <NUM>. Accordingly, the mmW base station <NUM> may transmit an uplink grant based on the SR. While the uplink grant may be associated with the second network, the reception component <NUM> may receive the uplink grant in either the first network or the second network.

The grant component <NUM> may receive the uplink grant through the reception component <NUM>. The uplink grant may indicate resource(s) on which the apparatus <NUM> may transmit in the second network. The grant component <NUM> may determine uplink resources that are to carry data in the second network and provide an indication thereof to the transmission component <NUM>.

The transmission component <NUM> may receive an uplink transmission to be transmitted in the second network from the uplink transmission component <NUM>. The transmission component may send, in the second network, the uplink transmission based on the uplink grant (e.g., based on the uplink resources indicated by the grant component <NUM>).

<FIG> is a diagram <NUM> illustrating an example of a hardware implementation for an apparatus <NUM>' employing a processing system <NUM>. The processing system <NUM> may be implemented with a bus architecture, represented generally by the bus <NUM>. The bus <NUM> may include any number of interconnecting buses and bridges depending on the specific application of the processing system <NUM> and the overall design constraints. The bus <NUM> links together various circuits including one or more processors and/or hardware components, represented by the processor <NUM>, the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM> and the computer-readable medium / memory <NUM>. The bus <NUM> may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further.

The processing system <NUM> may be coupled to a transceiver <NUM>. The transceiver <NUM> is coupled to one or more antennas <NUM>. The transceiver <NUM> provides a means for communicating with various other apparatus over a transmission medium. The transceiver <NUM> receives a signal from the one or more antennas <NUM>, extracts information from the received signal, and provides the extracted information to the processing system <NUM>, specifically the reception component <NUM>. In addition, the transceiver <NUM> receives information from the processing system <NUM>, specifically the transmission component <NUM>, and based on the received information, generates a signal to be applied to the one or more antennas <NUM>. The processing system <NUM> includes a processor <NUM> coupled to a computer-readable medium / memory <NUM>. The processor <NUM> is responsible for general processing, including the execution of software stored on the computer-readable medium / memory <NUM>. The software, when executed by the processor <NUM>, causes the processing system <NUM> to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory <NUM> may also be used for storing data that is manipulated by the processor <NUM> when executing software. The processing system <NUM> further includes at least one of the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM>. The components may be software components running in the processor <NUM>, resident/stored in the computer readable medium / memory <NUM>, one or more hardware components coupled to the processor <NUM>, or some combination thereof. The processing system <NUM> may be a component of the UE <NUM> and may include the memory <NUM> and/or at least one of the TX processor <NUM>, the RX processor <NUM>, and the controller/processor <NUM>.

The apparatus <NUM>/<NUM>' may be a UE. In the claimed invention, the apparatus <NUM>/<NUM>' for wireless communication includes means for sending, in a first network, a SR associated with a second network. The apparatus <NUM>/<NUM>' includes means for receiving an uplink grant based on the SR. The apparatus <NUM>/<NUM>' further includes means for sending, in the second network, an uplink transmission based on the uplink grant.

The uplink grant is received in the second network. The second network includes a mmW network. In an aspect, the first network includes an LTE network. In an aspect, the first network includes a fifth generation (<NUM>) network operating at sub-<NUM>. In an aspect, the apparatus <NUM>/<NUM>' is an inactive UE. In an aspect, uplink control resources associated with the second network are dynamically allocated and the apparatus <NUM>/<NUM>' lacks allocated uplink control resources. The means for sending the SR is configured to send the SR to a first base station and means for sending the uplink transmission is configured to send the uplink transmission to a second base station.

<FIG>, which is useful for an understanding of the current invention, is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an exemplary apparatus <NUM>. The apparatus may be a base station. In one aspect, the apparatus <NUM> may be collocated with an eNB <NUM>.

The apparatus <NUM> may include a reception component <NUM> configured to receive signals from the eNB <NUM> and/or a UE <NUM>. The apparatus <NUM> may include a transmission component <NUM> configured to transmit signals to the eNB <NUM> and/or the UE <NUM>. The reception component <NUM> and/or the transmission component <NUM> may be configured to operate in both a first network (e.g., an LTE or <NUM> network) and a second network (e.g., a mmW or near-mmW network).

In an aspect, the UE <NUM> may be inactive. For example, uplink control resources associated with the second network may be dynamically allocated to the UE <NUM> and the UE <NUM> may lack allocated uplink control resources with respect to the apparatus <NUM>.

In an aspect, the SR component <NUM> may be configured to receive, in the first network, an SR associated with the UE <NUM>. The SR may be associated with the second network. In an aspect, the SR may be received from the eNB <NUM>.

The SR component <NUM> may provide the SR to an uplink grant component <NUM>. The uplink grant component <NUM> may be configured to allocate resources for an uplink transmission from the UE <NUM> in the second network. The uplink grant component <NUM> may generate an uplink grant based on the SR, and the uplink grant may indicate an allocation of resources for the UE <NUM> in the second network. The uplink grant component <NUM> may cause the transmission component <NUM> to transmit the uplink grant to the UE <NUM>. The uplink grant may be transmitted in the second network.

Based on the uplink grant, the UE <NUM> may transmit an uplink transmission to the apparatus <NUM>. The data processing component <NUM> may receive, through the reception component <NUM>, the uplink transmission in the second network based on the uplink grant.

<FIG>, which is useful for an understanding of the current invention, is a diagram <NUM> illustrating an example of a hardware implementation for an apparatus <NUM>' employing a processing system <NUM>. The processing system <NUM> may be implemented with a bus architecture, represented generally by the bus <NUM>. The bus <NUM> may include any number of interconnecting buses and bridges depending on the specific application of the processing system <NUM> and the overall design constraints. The bus <NUM> links together various circuits including one or more processors and/or hardware components, represented by the processor <NUM>, the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM> and the computer-readable medium / memory <NUM>. The bus <NUM> may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further.

The processing system <NUM> may be coupled to a transceiver <NUM>. The transceiver <NUM> is coupled to one or more antennas <NUM>. The transceiver <NUM> provides a means for communicating with various other apparatus over a transmission medium. The transceiver <NUM> receives a signal from the one or more antennas <NUM>, extracts information from the received signal, and provides the extracted information to the processing system <NUM>, specifically the reception component <NUM>. In addition, the transceiver <NUM> receives information from the processing system <NUM>, specifically the transmission component <NUM>, and based on the received information, generates a signal to be applied to the one or more antennas <NUM>. The processing system <NUM> includes a processor <NUM> coupled to a computer-readable medium / memory <NUM>. The processor <NUM> is responsible for general processing, including the execution of software stored on the computer-readable medium / memory <NUM>. The software, when executed by the processor <NUM>, causes the processing system <NUM> to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory <NUM> may also be used for storing data that is manipulated by the processor <NUM> when executing software. The processing system <NUM> further includes at least one of the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM>. The components may be software components running in the processor <NUM>, resident/stored in the computer readable medium / memory <NUM>, one or more hardware components coupled to the processor <NUM>, or some combination thereof. The processing system <NUM> may be a component of the base station <NUM> and may include the memory <NUM> and/or at least one of the TX processor <NUM>, the RX processor <NUM>, and the controller/processor <NUM>.

The apparatus <NUM>/<NUM>' may include a mmW base station. In one configuration, the apparatus <NUM>/<NUM>' for wireless communication includes means for means for receiving, in a first network, a SR associated with a UE. The apparatus <NUM>/<NUM>' may further include means for generating an uplink grant based on the SR. apparatus <NUM>/<NUM>' may further include means for sending, in a second network, the uplink grant to the UE.

In an aspect, the SR is received from an eNB. In an aspect, the second network includes a mmW network. In an aspect, the first network includes an LTE network or includes a fifth generation (<NUM>) network operating at sub-<NUM>. In an aspect, uplink control resources associated with the second network are dynamically allocated and the UE lacks allocated uplink control resources. In an aspect, the apparatus <NUM>/<NUM>' is collocated with a base station configured to communicate in the first network.

Claim 1:
A method of wireless communication for a user equipment, UE (<NUM>), the method comprising:
determining (<NUM>) that the UE (<NUM>) has no resources allocated for a scheduling request, SR (<NUM>), on a physical uplink control channel, PUCCH, associated with a millimeter wave, mmW, base station (<NUM>), wherein the UE (<NUM>) is an inactive UE (<NUM>) being in an idle radio resource control, RRC, mode, transitioning from a discontinuous reception cycle, DRX, low-power state to a DRX high-power state, or not having an uplink grant (<NUM>);
sending (<NUM>), to a first base station (<NUM>), in a first network using a first radio access technology, RAT, the scheduling request, SR (<NUM>), associated with the mmW base station (<NUM>), in a second network using a second RAT, wherein the second network is a mmW network, and wherein the SR (<NUM>) indicates that the UE (<NUM>) is requesting resources in the second network, even though the SR (<NUM>) is sent through the first network;
receiving (<NUM>), from the mmW base station (<NUM>), in the second network, an uplink grant (<NUM>) based on the SR (<NUM>); and
sending (<NUM>), to the mmW base station (<NUM>), in the second network, an uplink transmission (<NUM>) based on the uplink grant (<NUM>).