Patent Description:
<CIT> discloses a method for performing cell measurements for at least one user equipment in a cellular network. The method comprises the following steps of: - detecting an absence of cell reselection or handover after expiration of a first predetermined timer, - setting the user equipment to a Low-mobility state wherein a frequency for cell measurements, called a Low-mobility frequency for cell measurements, is reduced in comparison with a frequency for cell measurements of a default state of said user equipment, called a Normal-mobility state.

<CIT> discloses that radio access networks and particularly enhancements for diverse data applications may benefit from a self-adjusting discontinuous reception (DRX) pattern. According to certain embodiments, for example, a method may include configuring a discontinuous reception pattern of a user equipment and adjusting the discontinuous reception pattern at the user equipment autonomously with respect to a base station.

<CIT> discloses that Mobility states are defined in order to prevent excess signaling overhead and to conserve power on a wireless transmit/receive unit (WTRU) in a wireless network. The WTRU may determine that is operating in a low mobility state based on triggers related to the frequency of movement of the WTRU between network cells. The WTRU may change cells less frequently in a low or no mobility state than in a normal mobility state. Upon determining that the WTRU is in the low or no mobility state, the WTRU may configure mobility procedures associated with the low or no mobility state in order to conserve power and other network resources. The WTRU may coordinate its mobility state with the network.

<CIT> discloses a user equipment which is configured to operate in a connected discontinuous reception, C-DRX, mode. The user equipment is configured to receive a DRX radio network temporary identifier, DRX-RNTI, and/or receive configuration parameters for C-DRX mode that configure the user equipment with a C-DRX cycle including an on-duration period and an off-duration period. The user equipment is configured to operate in a sleep state during the off-duration period. The user equipment is configured to, responsive to receiving a message during a wake-up monitoring period, attempt to decode the message using the DRX-RNTI. The user equipment is configured to monitor a Physical Downlink Control Channel during the on-duration period of a C-DRX cycle or operate in the sleep state during the on-duration period, depending respectively on whether or not the attempt to decode the message using the DRX-RNTI succeeds.

The base stations <NUM> may communicate directly or indirectly (e.g., through the EPC <NUM> or core network <NUM>) with each other over third backhaul links <NUM> (e.g., X<NUM> interface). The third backhaul links <NUM> may be wired or wireless.

Referring again to <FIG>, in certain aspects, the base station <NUM> may comprise a configuration parameter sequence component <NUM> configured to provide a UE with a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE, wherein the DRX operation comprises a plurality of DRX cycles.

Referring again to <FIG>, in certain aspects, the UE <NUM> may comprise a configuration parameter sequence component <NUM> configured to receive and apply a configuration from the base station comprising a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE, wherein the DRX operation comprises a plurality of DRX cycles. The apparatus may monitor for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation.

<FIG> provide an example of slot configuration <NUM> with <NUM> symbols per slot and numerology µ=<NUM> with <NUM> slots per subframe. The slot duration is <NUM>, the subcarrier spacing is <NUM>, and the symbol duration is approximately <NUM>.

The memory <NUM> maybe referred to as a computer-readable medium.

Communication between a UE and a base station may involve patterns of movement or similarities in movement of the UE that may enable predetermined state changes to be determined for the UE. As one example, in industrial IoT (IIot), a communication device may move in a linear or circular path in a factory. The communication device may move with periodic motion relative to a location of a base station. As another example, a UE located on a train may move along the rails in a predetermined pattern. For example, a high speed train may move along the rails at a relatively constant speed, and base stations or remote radio heads (RRHs) may be positioned along the rails at certain intervals. The intervals may be uniform or non-uniform. Thus, the position of the UE relative to the base station(s)/RRH(s) may be predetermined, e.g., the state changes of the UE may be predetermined. The predetermined pattern of state changes can be acquired by training based on past states of the UE and/or similar UEs. The predetermined pattern of state changes may be indicated by a network.

Predetermined configuration(s)/parameter(s) maybe applied to the UE based on the predetermined state changes for the UE. Such predetermined configurations/parameters may help to reduce the overhead that would be required for the UE or base station to perform acquisition and adaption of configuration(s)/parameter(s), which comprises link measurements, sending/receiving reports, and signaling control messages. Instead, the UE may be configured with a predetermined sequence of configurations/parameters based on the predetermined state changes that are anticipated for the UE. For example, the predetermined configurations/parameters may include any of a predetermined beam switch over time as the UE moves, a predetermined beam switch based on a UE state, and/or a predetermined set of TCI states.

As presented in more detail herein, a base station may configure a UE with a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE. A UE may be configured by a base station for DRX. During an RRC connected state, when there is no data transmission in either direction (UL/DL), the UE may go into the DRX mode in which the UE starts monitoring the PDCCH channel discontinuously, using a sleep and wake cycle. As the UE is in an RRC connected mode, such DRX may also be known as Connected Mode DRX (CDRX). DRX/CDRX conserves battery power at the UE. Without DRX, the UE needs to monitor PDCCH in every subframe or slot to check whether there is downlink data available. Continuous monitoring of the PDCCH drains the UE's battery power.

The DRX configuration may be configured by the network in RRC signaling from a base station, e.g. in an RRC Connection Setup request or an RRC connection reconfiguration request. A DRX configuration may include the configuration of any of a number of timers and values, e.g., any of an ON duration Timer, a DRX Inactivity Timer, a DRX Retransmission Timer, a DRX UL Retransmission Timer, a long DRX Cycle, a value of the DRX Start Offset, a DRX Short Cycle Timer, and/or a short DRX Cycle, etc. A DRX Cycle may comprise a periodic repetition of ON Duration in which the UE monitors PDCCH and an OFF Duration, which may be referred to as a DRX opportunity. During the OFF duration, the UE does not monitor for PDCCH. The UE may enter a sleep mode or low power mode in which the UE minimizes power consumption by shutting down a radio frequency (RF) function without detecting communication from the base station.

DRX may provide a power saving mechanism for the UE and may be beneficial when data traffic is sparse or inactive. A wakeup signal (WUS) may be used in association with a DRX ON duration to indicate to the UE whether the base station has communication for transmission to the UE during the DRX ON duration. If a UE is configured to monitor for a WUS, in a DRX cycle where no PDCCH communication will be sent to the UE, the UE would monitor for the WUS signal without detecting the WUS because no WUS is sent when the base station will not send PDCCH in the DRX cycle. Thus, if the UE does not detect a WUS, the UE may return to the sleep mode or low power mode, e.g., without monitoring for PDCCH during the DRX ON duration. If the UE is not configured to monitor for the WUS, the UE would monitor the PDCCH search space(s) during the DRX ON duration and would expend more power. A PDCCH based WUS may be transmitted prior to the DRX ON duration, e.g., as illustrated in <FIG>. The WUS may also have a different placement. For example, the WUS may be located at the beginning of an ON duration. <FIG> illustrates a diagram <NUM> of a DRX operation comprising a WUS. <FIG> illustrates two DRX cycles comprising a sleep state and a potential ON duration during which the UE may monitor for communication from a base station. The WUS occasion, during which the UE monitors for a WUS to determine whether to return to the sleep state or to monitor for PDCCH during the potential ON duration, is illustrated as being spaced before the ON duration by an offset. The UE monitors for PDCCH during the ON duration only when the corresponding WUS is detected, or when a detected WUS indicates for the UE to monitor for PDCCH. Otherwise, the UE may skip the ON duration and remain in a sleep mode to save power.

As presented herein, predetermined state changes for a UE may be used to configure the UE for predetermined DRX configurations and/or WUS monitoring. Such UEs, for which predetermined state changes can be identified or predicted, may experience further power savings by applying the predetermined DRX/WUS configurations as the UE's state changes without acquiring or receiving a new configuration for each state change. Thus, the UE may remain in a power saving mode (e.g., a sleep mode) during the course of the predetermined state changes and may apply the new configuration/parameters to the subsequent WUS occasion and/or ON duration. The predetermined DRX/WUS configurations may be referred to as a sequence of predetermined configuration parameters. A sequence of predetermined DRX parameters may be configured, e.g., for UEs with sparse traffic in predetermined state changing scenarios whether or not the UE is configured to use a WUS. If a UE is not configured for a WUS, the UE may wake up from the sleep mode to monitor for PDCCH during a DRX ON duration.

The base station might not send a fine sequence of pre-determined configuration parameters for high-throughput DL/UL data transmission. Instead, the base station may send a minimum (or reduced) set of predetermined parameters for the UE to apply when monitoring for WUS or when performing a DRX operation. The base station may send refined information (e.g., configuration/parameters) when there is communication for the UE whether downlink or uplink. For example, when the base station has downlink data to send to the UE, the base station will send the UE a WUS (e.g., for a WUS configured UE) or scheduling PDCCH during DRX ON duration (e.g., for a WUS non-configured UE). The UE may send information to the base station that causes the base station to respond with refinement information. For example, the UE may send a scheduling request (SR). In some cases, the UE may request the base station to send refinement information. The UE may send an SR when the UE has data to send. The UE may then apply the refinement information when transmitting the uplink data.

<FIG> illustrates a communication flow <NUM> between a UE <NUM> and a base station <NUM> according to the main embodiment of the invention.

At <NUM>, the base station <NUM> indicates to the UE <NUM> a sequence of predetermined configuration parameters for WUS monitoring and/or DRX operation. The configuration parameters may be sparse and may correspond to a long duration, e.g., to multiple DRX cycles. Prior to indicating the sequence of predetermined configuration parameters, the base station may determine or generate the sequence of configuration parameters for the UE, at <NUM>. The determination of the sequence may include identifying or otherwise determining state changes that the UE will, or is likely to, experience.

The sequence of configuration parameters may include a sequence of beams for the UE to switch to use during a WUS occasion and/or DRX ON duration of each of the multiple DRX cycles. Thus, the UE may use different beam(s) to monitor for WUS/PDCCH for different DRX cycles. This may enable the UE to adjust beams, e.g., to compensate for state changes that may occur while the UE is in a sleep state.

The sequence of configuration parameters may include lengths/intervals between adjacent WUS occasions and/or DRX cycles. Each DRX cycle, or a subset of DRX cycles, may be uniform in length and spacing in time. As another example, the DRX cycles, or a subset of DRX cycles in the sequence of configuration parameters may have non-uniform lengths in time. For example, if the UE is located on a train or along an assembly line, a non-uniform length/spacing for DRX cycles may be used when the train or assembly line is not moving at a constant speed. As another example, if the UE is located on a train or along an assembly line, a non-uniform length/spacing for DRX cycles may be used when there is a different distance between base stations or RRHs along the path of the train/assembly line. If the UE will be moving at a consistent speed and the base stations/RRHs are located at a uniform distance along the path of the UE, the DRX cycles configured for the UE may share a same length/spacing. Thus, the UE may apply a sequence of different DRX or WUS lengths/spacing in a predetermined manner. This may enable the UE to adjust for different speeds of the UE and/or different distances between base stations, e.g., to compensate for state changes that may occur while the UE is in a sleep state.

As another example, the sequence of configuration parameters may include an expected signal strength during a WUS occasion and/or ON duration of each of the multiple DRX cycles. Thus, the UE may apply a sequence of different signal strength parameters in a predetermined manner. This may enable the UE to adjust for different signal strengths in association with different state changes that may occur while the UE is in a sleep state of a DRX cycle. As an example, the sequence of configuration parameters may include parameters that relate to the automatic gain control (AGC) setup for the UE. Thus, the UE may apply a sequence of different AGC parameters in a predetermined manner. This may enable the UE to adjust the AGC for state changes that may occur while the UE is in a sleep state of a DRX cycle. During power saving operation, the UE <NUM> applies the indicated sequence of parameters, e.g., for monitoring during a WUS occasion or ON duration of each DRX cycle.

As illustrated at <NUM>, <NUM>, <NUM>, the UE may apply the sequence of configuration parameters. At <NUM>, the UE may apply first configuration parameter(s), such as using a beam, a length of DRX cycle, an interval between DRX cycles, signal strength parameters, AGC parameters, etc. for at least one DRX cycle. At <NUM>, the UE may apply second configuration parameter(s) for at least one subsequent DRX cycle, as indicated by the base station in the sequence of configuration parameters. Between <NUM> and <NUM>, the state of the UE may change. For example, the location of the UE relative to a base station may change. At <NUM>, the UE may apply third configuration parameter(s) for at least one DRX cycle following the application of the second DRX parameter(s). The state of the UE may change between <NUM> and <NUM>, e.g., the location of the UE may change relative to the base station. A sequence of three configuration parameters, as illustrated for <NUM>, <NUM>, <NUM>, is merely an example. The sequence of configuration parameters indicated by the base station may include a sequence of only two configuration parameters for two predetermined states for the UE, and the sequence of configuration parameters may include a sequence of more than three configuration parameter(s) for the UE. Thus, the UE is able to apply appropriate DRX parameters as the UE changes states using the signaling <NUM> between the base station and UE and without requiring a new configuration each time the UE changes states.

When there is data or control to be transmitted to the UE or received by the UE, the base station may provide the UE with a refined sequence of parameters <NUM> for the uplink/downlink transmission. The refined sequence of parameters may be triggered by a scheduling request (SR) <NUM> from the UE indicating that the UE has uplink data for transmission to the base station and/or in association with a WUS and/or PDCCH <NUM> transmitted to the UE indicating that the base station has control or data to transmit to the UE. The SR <NUM> WUS and/or PDCCH <NUM> would be communicated according to the current DRX configuration parameters for the DRX cycle from the sequence of configuration parameters indicated by the base station at <NUM>. As illustrated at <NUM>, the base station may determine the sequence of configuration parameters for uplink/downlink transmissions. The base station may identify a current state of the UE within a sequence of predetermined state changes and may determine the refined configuration parameters based on the current state of the UE and the anticipated state changes of the UE during the time of the uplink/downlink transmission(s). Although the base station is described as providing a sequence of refined configuration parameters, the base station may also provide a single refined configuration parameter or a single set of refined configuration parameters, e.g., if the UE will not change states during the time of the uplink/downlink transmission(s). The refined sequence of configuration parameters <NUM> for the uplink/downlink transmission may be indicated for a shorter length of time than the sequence of configuration parameters for DRX indicated at <NUM>. The refined sequence of configuration parameters <NUM> for the uplink/downlink transmission may be finer or denser than the sequence of configuration parameters for DRX indicated at <NUM>. For example, the sequence of configuration parameters <NUM> may have additional parameters and/or different parameters than the sequence of configuration parameters for DRX indicated at <NUM>. For example, in addition to or alternately to a beam, a length of DRX cycle, an interval between DRX cycles, signal strength parameters, AGC parameters, etc., the refined sequence of configuration parameters <NUM> may indicate a sequence of channel state information (CSI), a modulation and coding scheme (MCS), a number of multiple input multiple output (MIMO) layers, etc. Thus, the sequence of configuration parameters for DRX operation indicated at <NUM> may be sparser and for a longer length of time, whereas the sequence of configuration parameters for uplink/downlink transmission indicated at <NUM> may be finer and for a shorter length of time. The UE applies the refined sequence of configuration parameters, at <NUM>. For example, the UE may use the refined sequence of configuration parameters to transmit control or data to the base station at <NUM> and/or to receive control or data from the base station at <NUM>. Although <NUM> and <NUM> are illustrated with a single line, the communication of the uplink/downlink control or data may involve multiple transmissions exchanged between the base station and the UE. For example, a first transmission may be transmitted/received according to first configuration parameter(s) from the sequence of refined configuration parameters <NUM>, a second transmission may be transmitted/received according to second configuration parameter(s) from the sequence of refined configuration parameters <NUM>, and so forth according to the indicated sequence. The sequence of refined configuration parameters <NUM> may indicate a duration. At the end of the duration, the UE may return to applying the sequence of configuration parameters for DRX operation indicated at <NUM>. For example, at <NUM>, the UE may apply fourth configuration parameters from the sequence of configuration parameters to monitor for a WUS during a WUS occasion and/or for PDCCH during a DRX ON duration. Although <NUM> is described as involving fourth configuration parameters, some configuration parameters from the sequence of configuration parameters for DRX operation indicated at <NUM> may have been applicable to the time duration during which the UE applied the refined configuration parameters. Thus, the UE may skip at least one parameter from the sequence of configuration parameters for DRX operation indicated at <NUM>. For example, the fourth configuration parameters indicated at <NUM> may be a fifth configuration parameter in the sequence of configuration parameters for DRX operation, and the UE may skip a fourth configuration parameter in the sequence that would have been applied during the time that the UE applied the refined sequence of configuration parameters <NUM>.

The sequence of configuration parameters for DRX operation and/or the refined sequence of configuration parameters for uplink/downlink data transmission may be repeated periodically. For example, the predetermined state changes for a communication device involved in IIoT may involve a periodic movement of the communication device within a factory. The base station may provide the sequence of configuration parameters for DRX operation indicated at <NUM> with an indication for the UE to apply the sequence in a repeated or periodic manner, which will further reduce the signaling between the base station and the UE to configure the UE for DRX operation. This, <FIG> illustrates the UE repeating use of the first configuration parameter(s) at <NUM> that were first applied at <NUM>. The UE may continue to apply the second configuration parameters that were applied at <NUM>, the third configuration parameters that were applied at <NUM>, and so forth. In another example, the sequence of configuration parameters may be applied for a duration indicated by the base station.

<FIG> illustrates an example <NUM> of a sequence of configuration parameters for WUS monitoring being provided by a base station <NUM> to a UE <NUM>. As an example, the base station <NUM> may indicate a sequence of N WUS beams (or other parameters for WUS monitoring or PDCCH monitoring) for N DRX cycles. The indication may be provided to the UE before the UE experiences the predetermined state changes, e.g., before the UE begins a predetermined motion or cycle in a factory, before a UE moves through locations on a train, etc. In the example <NUM> in <FIG>, the UE may use a first beam indicated in the sequence to monitor for a WUS during a WUS occasion in DRX cycle <NUM>, a second beam indicated in the sequence to monitor for a WUS during a WUS occasion in DRX cycle <NUM>, and so forth to DRX cycle N. In other examples, the UE may apply the same beam for multiple DRX cycles as part of the indicated sequence. The base station may indicate for the UE to repeat the use of the sequence of beams in a periodic manner, e.g., if the UE moves in a periodic manner in a factory.

<FIG> illustrates an example <NUM> in which a base station <NUM> sends refined configuration parameter(s) for uplink/downlink transmissions between the base station <NUM> and UE <NUM>. Similar to the example in <FIG>, the base station <NUM> initially indicate a sequence of configuration parameters for WUS monitoring or PDCCH monitoring for a duration of N DRX cycles. The UE may use the indicated sequence of configuration parameter to monitor for WUS/PDCCH during corresponding WUS occasions or DRX ON durations. If the base station has data to transmit to the UE, e.g., in DRX cycle K, the base station sends a WUS or PDCCH based on the predetermined configuration parameters for the corresponding DRX cycle, i.e., DRX cycle K. The WUS indicates to the UE to terminate the power saving mode in order to receive the data. The base station may provide the UE with an indication of refined parameters, e.g., different and/or additional parameters, to be used to receive the data transmission. Following the data transmission, the UE may return to DRX operation using the previously indicated sequence of configuration parameters until DRX cycle N. Similarly, a SR received from the UE may trigger the base station to send refined parameters for the UE to use to transmit the data to the base station.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a base station or a component of a base station (e.g., the base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>; the apparatus <NUM>/<NUM>'; the processing system <NUM>, which may include the memory <NUM> and which may be the entire base station <NUM> or a component of the base station <NUM>, such as the TX processor <NUM>, the RX processor <NUM>, and/or the controller/processor <NUM>). One or more of the illustrated operations may be omitted, transposed, or contemporaneous. The base station may implement the method of diagram <NUM>. Optional aspects are illustrated with a dashed line. The method may enable a base station to reduce signaling between a UE and the base station by providing a sequence of predetermined configuration parameters to a UE having predetermined or predictable state changes. Such signaling may enable the UE to apply changes in DRX configuration based on state changes that may occur while the UE is in a sleep state between monitoring for WUS or PDCCH.

At <NUM>, the base station may configure a UE with a sequence of predetermined configuration parameters for DRX operation. The DRX operation may include monitoring for WUS during a WUS occasion and/or monitoring for PDCCH during a DRX ON duration. For example, <NUM> may be performed by sequence component <NUM> of apparatus <NUM>. The predetermined configuration parameters for DRX operation may be based on predetermined state changes for the UE. In some aspects, the DRX operation may comprise a plurality of DRX cycles. In some aspects, the sequence of predetermined configuration parameters may comprise a sequence of beams. For example, at least one beam in the sequence of beams may be indicated for the UE to use during a WUS occasion or a DRX ON duration of each DRX cycle comprised in the plurality of DRX cycles. In some aspects, the sequence of predetermined configuration parameters may comprise time intervals between adjacent WUS occasions or adjacent DRX ON durations comprised in the plurality of DRX cycles. In some instances, the time intervals may be non-uniform. However, in some instances, at least a subset of the time intervals may be uniform. The time intervals may be based on a distance between adjacent base stations or adjacent remote radio heads along a predetermined path for the UE. In some aspects, the sequence of predetermined configuration parameters may comprise signal strength information corresponding to a WUS occasion or DRX ON duration of each DRX cycle comprised in the plurality of DRX cycles. The signal strength information may comprise AGC parameters for the WUS occasion or the DRX ON duration of each DRX cycle comprised in the plurality of DRX cycles.

At <NUM>, the base station may transmit communication to the UE based on the sequence of predetermined configuration parameters for the DRX operation. For example, <NUM> may be performed by communication component <NUM> of apparatus <NUM>. In some aspects, the communication may include at least one of a WUS transmitted to the UE in association with a DRX ON duration, a control channel transmitted to the UE during the DRX ON duration, or a scheduling request received from the UE.

At <NUM>, the base station may indicate an additional sequence of predetermined configuration parameters for downlink data reception by the UE or uplink data transmission from the UE. For example, <NUM> may be performed by additional sequence component <NUM> of apparatus <NUM>. In some aspects, the sequence of predetermined configuration parameters for the DRX operation may correspond to a longer amount of time than the additional sequence of predetermined configuration parameters for the downlink data reception or the uplink data transmission. In some aspects, the additional sequence of predetermined configuration parameters for the downlink data reception by the UE or the uplink data transmission from the UE may comprise a denser sequence of predetermined configuration parameters than the sequence of predetermined configuration parameters for the DRX operation. For example, the denser sequence of predetermined configuration parameters may correspond to a finer, shorter term set of configuration parameters and may also be referred to as a "refined" sequence of parameters. In some aspects, the additional sequence of predetermined configuration parameters for the downlink data reception by the UE or the uplink data transmission from the UE may comprise a sequence of channel state information. The sequence of channel state information may comprise at least one of a sequence of modulation and coding schemes, a sequence of precoding schemes, or a sequence of the number of multiple input multiple output layers.

At <NUM>, the base station may transmit downlink data to the UE or receive uplink data from the UE for a duration of time. For example, <NUM> may be performed by time duration component <NUM> of apparatus <NUM>. In some aspects, the transmitting of downlink data to the UE or the receiving of uplink data form the UE for the duration of time may be based on the additional sequence of predetermined configuration parameters.

At <NUM>, the base station may be configured to return to communicating with the UE based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time. For example, <NUM> may be performed by return component <NUM> of apparatus <NUM>. The base station being configured to return to communicating with the UE based on the sequence of predetermined configuration parameters allows the base station to reduce or minimize signaling overhead with the UE due to the predetermined or predictable state changes for the UE.

<FIG> is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an example apparatus <NUM>. The apparatus may be a base station or a component of a base station. The apparatus may perform the method of flowchart <NUM>. The apparatus includes a reception component <NUM> that maybe configured to receive various types of signals/messages and/or other information from other devices, including, for example, the UE <NUM>. The apparatus includes a sequence component <NUM> that may configure a UE with a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a communication component <NUM> that may transmit communication to the UE based on the sequence of predetermined configuration parameters for the DRX operation, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes an additional sequence component <NUM> that may indicate an additional sequence of predetermined configuration parameters for downlink data reception by the UE or uplink data transmission from the UE, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a time duration component <NUM> that may be configured to transmit downlink data to the UE or receive uplink data from the UE, for a duration of time, based on the additional sequence of predetermined configuration parameters, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a return component <NUM> that may be configured to return to communicating with the UE based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a transmission component <NUM> that may be configured to transmit various types of downlink signals/messages to the UE <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>, <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>, <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>. Alternatively, the processing system <NUM> may be the entire base station (e.g., see <NUM> of <FIG>).

In one configuration, the apparatus <NUM>/<NUM>' for wireless communication includes means for configuring a UE with a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE. The DRX operation may comprise a plurality of DRX cycles. The apparatus includes means for transmitting communication to the UE based on the sequence of predetermined configuration parameters for the DRX operation. The apparatus may further include means for indicating an additional sequence of predetermined configuration parameters for downlink data reception by the UE or uplink data transmission from the UE. The apparatus may further include means for transmitting downlink data to the UE or receiving uplink data from the UE, for a duration of time, based on the additional sequence of predetermined configuration parameters. The apparatus may further include means for returning to communicating with the UE based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a UE or a component of a UE (e.g., the UE <NUM>, <NUM>, <NUM>, <NUM>; the apparatus <NUM>/<NUM>'; the processing system <NUM>, which may include the memory <NUM> and which may be the entire UE <NUM> or a component of the UE <NUM>, such as the TX processor <NUM>, the RX processor <NUM>, and/or the controller/processor <NUM>). One or more of the illustrated operations may be omitted, transposed, or contemporaneous. The UE may implement the method of diagram <NUM>. Optional aspects are illustrated with a dashed line. The method may allow a UE to remain in a power saving mode in the course of predetermined or predictable state changes, thereby reducing power consumption. The method may enable the UE to apply DRX configuration changes for state changes that may occur while the UE is in a sleep state.

At <NUM>, the UE may receive a configuration from a base station comprising a sequence of predetermined configuration parameters for DRX operation. For example, <NUM> may be performed by sequence component <NUM> of apparatus <NUM>. In some aspects, the sequence of predetermined configuration parameters for DRX operation may be based on predetermined state changes for the UE. In some aspects, the DRX operation may comprise a plurality of DRX cycles. In some aspects, the sequence of predetermined configuration parameters may comprise a sequence of beams. For example, at least one beam in the sequence of beams may be indicated for the UE to use during a WUS occasion or a DRX on duration of each DRX cycle comprised in the plurality of DRX cycles. In some aspects, the sequence of predetermined configuration parameters may comprise time intervals between adjacent WUS occasions or adjacent DRX ON durations comprised in the plurality of DRX cycles. In some aspects, the time intervals may be non-uniform, while in some aspects, at least a subset of the time intervals may be uniform. In some aspects, the time intervals may be based on a distance between adjacent base stations or adjacent remote radio heads along a predetermined path for the UE. In some aspects, the sequence of predetermined configuration parameters may comprise signal strength information corresponding to a WUS occasion or DRX ON duration of each DRX cycle comprised in the plurality of DRX cycles. The signal strength information may comprise AGC parameters for the WUS occasion or the DRX ON duration of each DRX cycle comprised in the plurality of DRX cycles. In some aspects, the UE may apply the sequence of predetermined configuration parameters for the DRX operation during a WUS occasion or a DRX ON duration of each DRX cycle. In some aspects, the UE may apply the sequence of predetermined configuration parameters for the DRX operation in a repeated manner. In some aspects, the UE may apply the sequence of predetermined configuration parameters for the DRX operation for an indicated duration of time.

At <NUM>, the UE may be configured to monitor communication from the base station. For example, <NUM> may be performed by monitor component <NUM> of apparatus <NUM>. In some aspects, the monitoring of communications from the base station may be based on the sequence of predetermined configuration parameters for the DRX operation.

At <NUM>, the UE may be configured to receive at least one of a WUS from the base station in association with a DRX ON duration or a control channel from the base station during the DRX ON duration or transmitting a scheduling request to the base station for uplink transmission. For example, <NUM> may be performed by WUS component <NUM> or SR component <NUM> of apparatus <NUM>.

At <NUM>, the UE may be configured to receive an indication of an additional sequence of predetermined configuration parameters for downlink data reception or uplink data transmission. For example, <NUM> may be performed by additional sequence component <NUM> of apparatus <NUM>. In some aspects, the sequence of predetermined configuration parameters for the DRX operation may correspond to a longer amount of time than the additional sequence of predetermined configuration parameters for the downlink data reception or the uplink data transmission. In some aspects, the additional sequence of predetermined configuration parameters for the downlink data reception by the UE or the uplink data transmission from the UE may comprise a denser sequence of predetermined configuration parameters than the sequence of predetermined configuration parameters for the DRX operation. For example, the denser sequence of predetermined configuration parameters may correspond to a finer, shorter term set of configuration parameters and may also be referred to as a "refined" sequence of parameters. In some aspects, the additional sequence of predetermined configuration parameters for the downlink data reception by the UE or the uplink data transmission from the UE may comprise a sequence of channel state information. The sequence of channel state information may comprise at least one of a sequence of modulation and coding schemes, a sequence of precoding schemes, or a sequence of the number of multiple input multiple output layers.

At <NUM>, the UE may be configured to receive downlink data from the base station or transmit uplink data to the base station for a duration of time. For example <NUM> may be performed by time duration component <NUM> of apparatus <NUM>. In some aspects, the receiving of downlink data from the base station or the transmitting of uplink data to the base station for the duration of time may be based on the additional sequence of predetermined configuration parameters.

At <NUM>, the UE may be configured to return to monitoring for communications form the base station. For example, <NUM> may be performed by return component <NUM> of apparatus <NUM>. In some aspects, the UE may return to monitoring for communications from the base station based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time.

<FIG> is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an example apparatus <NUM>. The apparatus may be a UE. The apparatus may perform the method of flowchart <NUM>. The apparatus includes a component reception <NUM> that may be configured to receive various types of signals/messages and/or other information from other devices, including, for example, the base station <NUM>. The apparatus includes a sequence component <NUM> that may be configured to receive a configuration from a base station comprising a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a monitor component <NUM> that may monitor for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a WUS component <NUM> that may receive at least one of a WUS from the base station in association with a DRX ON duration or a control channel from the base station during the DRX ON duration and/or an SR component <NUM> that may transmit a scheduling request to the base station for uplink transmission, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes an additional sequence component <NUM> that may receive an indication of additional sequence of predetermined configuration parameters for downlink data reception or uplink data transmission, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a time duration component <NUM> that may receive downlink data from the base station or may transmit uplink data to the base station for a duration of time based on the additional sequence of predetermined configuration parameters, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a return component <NUM> that may return to monitoring for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time, e.g., as described in connection with <NUM> of <FIG>. The apparatus includes a transmission component <NUM> that may be configured to transmit various types of uplink signals/messages to the base station <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>, <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>, <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>. Alternatively, the processing system <NUM> may be the entire UE (e.g., see <NUM> of <FIG>).

In one configuration, the apparatus <NUM>/<NUM>' for wireless communication includes means for receiving a configuration from a base station comprising a sequence of predetermined configuration parameters for DRX operation based on predetermined state changes for the UE. The DRX operation may comprise a plurality of DRX cycles. The apparatus includes means for monitoring for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation. The apparatus further includes means for receiving at least one of a WUS from the base station in association with a DRX ON duration or a control channel from the base station during the DRX ON duration or transmitting a scheduling request to the base station for uplink transmission. The apparatus further includes means for receiving an indication of an additional sequence of predetermined configuration parameters for downlink data reception or uplink data transmission. The apparatus further includes means for receiving downlink data from the base station or transmitting uplink data to the base station for a duration of time based on the additional sequence of predetermined configuration parameters. The apparatus further includes means for returning to monitoring for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation following the duration of time. The aforementioned means maybe one or more of the aforementioned components of the apparatus <NUM> and/or the processing system <NUM> of the apparatus <NUM>' configured to perform the functions recited by the aforementioned means.

Claim 1:
A method (<NUM>) of wireless communication executed by a user equipment, UE, comprising:
receiving (<NUM>) a configuration from a base station comprising a sequence of predetermined configuration parameters for discontinuous reception, DRX, operation based on predetermined changes of the location of the UE relative to the base station, wherein the DRX operation comprises a plurality of DRX cycles; and
monitoring (<NUM>) for communication from the base station based on the sequence of predetermined configuration parameters for the DRX operation,
wherein the sequence of predetermined configuration parameters comprises time intervals between adjacent wake up signal, WUS, occasions or adjacent DRX ON durations comprised in the plurality of DRX cycles,
wherein the time intervals are non-uniform or at least a subset of the time intervals are uniform.