Network entity and method for wireless communication at network entity

Abstract

The disclosure relates to a network entity and a method for wireless communication at the network entity. Wherein the network entity comprises a processing system comprising processor circuitry and memory circuitry storing code, the processing system being configured to cause the network entity to receive, during an active duration of a discontinuous reception cycle period, an indication that the UE requests to report channel state information, indicating that a wake-up signal for the UE is not present in a previous wake-up signal monitoring occasion for the UE, the previous wake-up signal monitoring occasion being in an inactivity duration of a discontinuous reception cycle period; and receiving a channel state information report including channel state information associated with measurements of one or more reference signals in an active duration of the discontinuous reception cycle period, the channel state information report being received in association with receiving an indication that the UE requests to report the channel state information, although there is no wake-up signal for the UE in a previous wake-up signal monitoring occasion.

Description

[0001] This application is a divisional application of an invention patent application with an application date of November 13, 2020, application number 202080078421.X (international application number PCT / US2020 / 060493), and invention name “Channel state information reporting through discontinuous reception operation”.

[0002] Cross-references

[0003] This patent application claims priority to U.S. Patent Application No. 17 / 096,584, filed by Damnjanovic et al. on November 12, 2020, entitled “Channel State Information Reporting via Discontinuous Reception Operation,” and U.S. Provisional Patent Application No. 62 / 937,104, filed by Damnjanovic et al. on November 18, 2019, entitled “Channel State Information Reporting via Discontinuous Reception Operation,” each of which is assigned to the assignee herein. Technical Field

[0004] The following relates generally to wireless communications, and more particularly, to channel state information (CSI) reporting over discontinuous reception (DRX) operation. Background Art

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may use techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM).

[0006] A wireless multiple access communication system may include multiple base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices, which may be otherwise referred to as user equipment (UE). Some wireless communication systems (such as 4G and 5G systems) may support channel state information (CSI) operations and may also support discontinuous reception (DRX) operations. As the demand for communication efficiency increases, some wireless communication systems (such as 4G and 5G systems) may not be able to provide satisfactory CSI operations through DRX operations, and as a result, may not be able to support, among other things, high reliability or low latency communications. Summary of the invention

[0007] Various aspects of the described technology relate to configuring a communication device (which may be a user equipment (UE)) to support channel state information (CSI) operations (e.g., CSI reports) through discontinuous reception (DRX) operations in a wireless communication system. For example, the described technology can be used to configure the communication device to send CSI reports in a DRX cycle period regardless of the wake-up signal. In some examples, the described technology can help configure the communication device to send an indication of a CSI report and send the CSI report based on the indication. For example, the communication device may be configured to send an indication for a CSI report during an active duration of a DRX cycle period. The communication device may be configured to send a CSI report in a separate active duration of a DRX cycle period, and the separate active duration of the DRX cycle period is configured for use by the communication device to send the CSI report. Alternatively, the communication device may be configured to automatically send a CSI report (e.g., independently or without regard to the indication). Therefore, for example, in a fifth generation (5G) system, which may be referred to as a new radio (NR) system, the communication device may be configured to support CSI operations through DRX operations regardless of the wake-up signal. The described techniques may include features for improving power consumption, and in some examples, the described features may facilitate increased efficiency for high reliability and low latency operations in 5G systems, among other benefits.

[0008] One inventive aspect of the subject matter described in the present disclosure may be implemented in a method for wireless communication at a UE. The method may include: monitoring a wake-up signal monitoring opportunity in an inactive duration of a DRX cycle period; determining that a wake-up signal is not present in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity; sending a CSI report on one or more resources in a first active duration of the DRX cycle period based on the absence of the wake-up signal in the wake-up signal monitoring opportunity; and receiving control information for the UE in a second active duration of the DRX cycle period based on the CSI report.

[0009] Another inventive aspect of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to: monitor a wake-up signal monitoring opportunity in an inactive duration of a DRX cycle period, determine that there is no wake-up signal in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity, send a CSI report on one or more resources in a first active duration of the DRX cycle period based on the absence of the wake-up signal in the wake-up signal monitoring opportunity, and receive control information for the apparatus in a second active duration of the DRX cycle period based on the CSI report.

[0010] Another inventive aspect of the subject matter described in the present disclosure may be implemented in a device for wireless communication at a UE. The device may include: a device for monitoring a wake-up signal monitoring opportunity in an inactive duration of a DRX cycle period, determining that a wake-up signal is not present in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity, sending a CSI report on one or more resources in a first active duration of the DRX cycle period based on the absence of the wake-up signal in the wake-up signal monitoring opportunity, and receiving control information for the device in a second active duration of the DRX cycle period based on the CSI report.

[0011] Another inventive aspect of the subject matter described in the present disclosure may be implemented in a non-transitory computer-readable medium storing code for wireless communication at a UE. The code may include instructions executable by a processor to: monitor a wake-up signal monitoring opportunity in an inactive duration of a DRX cycle period, determine that a wake-up signal is not present in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity, send a CSI report on one or more resources in a first active duration of the DRX cycle period based on the absence of the wake-up signal in the wake-up signal monitoring opportunity, and receive control information for the UE in a second active duration of the DRX cycle period based on the CSI report.

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining whether to monitor control information for the UE in a downlink control channel in a second active duration of the DRX cycle period based on the CSI report. In some examples, receiving the control information may be based on the determination.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for monitoring control information for the UE in a downlink control channel during a second active duration of the DRX cycle period based on determining whether to monitor the control information for the UE in the downlink control channel. In some examples, receiving the control information may be based on monitoring the downlink control channel.

[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for sending an indication that the UE requests reporting of a CSI report within a first activity duration of a DRX cycle period based on the absence of a wake-up signal in a wake-up signal monitoring opportunity.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, apparatus, or instructions for receiving a message including a CSI reporting configuration, wherein sending the CSI report on one or more resources includes automatically sending the CSI report on the one or more resources based on the CSI reporting configuration.

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for determining an absence of a wake-up signal of the UE in a wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity, wherein sending a CSI report may be based on the absence of the wake-up signal.

[0017] One inventive aspect of the subject matter described in the present disclosure may be implemented in a method for wireless communication at a base station. The method may include: receiving a CSI report on one or more resources in a first active duration of a DRX cycle period; and sending control information for a UE on a downlink control channel based on the CSI report in a second active duration of the DRX cycle period.

[0018] Another inventive aspect of the subject matter described in the present disclosure can be implemented in a device for wireless communication. The device may include a processor, a memory coupled to the processor, and instructions stored in the memory. These instructions can be executed by the processor to cause the device to: receive a CSI report on one or more resources in a first active duration of a DRX cycle period and send control information for a UE on a downlink control channel based on the CSI report in a second active duration of the DRX cycle period.

[0019] Another inventive aspect of the subject matter described in the present disclosure can be implemented in an apparatus for wireless communication. The apparatus may include means for receiving a CSI report on one or more resources in a first active duration of a DRX cycle period and sending control information for a UE on a downlink control channel based on the CSI report in a second active duration of the DRX cycle period.

[0020] Another inventive aspect of the subject matter described in the present disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication. The code can include instructions executable by a processor to receive a CSI report on one or more resources in a first active duration of a DRX cycle period and send control information for a UE on a downlink control channel based on the CSI report in a second active duration of the DRX cycle period.

[0021] Another inventive aspect of the subject matter described in the present disclosure may include a network entity, which includes a processing system, the processing system including a processor circuit and a memory circuit storing code, the processing system being configured to cause the network entity to: receive an indication of a user equipment (UE) requesting to report channel state information during an active duration of a discontinuous reception cycle period, the indication being associated with the absence of a wake-up signal for the UE in a previous wake-up signal monitoring opportunity for the UE, the previous wake-up signal monitoring opportunity being in an inactive duration of the discontinuous reception cycle period; and receive a channel state information report including channel state information associated with measurement of one or more reference signals during the active duration of the discontinuous reception cycle period, the channel state information report being received in association with receiving the indication of the UE requesting to report channel state information, although the wake-up signal for the UE was not present in the previous wake-up signal monitoring opportunity.

[0022] Another inventive aspect of the subject matter described in the present disclosure may include a method for wireless communications at a network entity, comprising receiving an indication of a user equipment (UE) requesting to report channel state information during an active duration of a discontinuous reception cycle period, the indication being associated with the absence of a wake-up signal for the UE in a previous wake-up signal monitoring opportunity for the UE, the previous wake-up signal monitoring opportunity being in an inactive duration of the discontinuous reception cycle period; and receiving, during the active duration of the discontinuous reception cycle period, a channel state information report including channel state information associated with measurements of one or more reference signals, the channel state information report being received in association with receiving the indication of the UE requesting to report channel state information, although the wake-up signal for the UE was not present in the previous wake-up signal monitoring opportunity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 and 2 An example of a wireless communication system supporting channel state information (CSI) reporting with discontinuous reception (DRX) operation in accordance with aspects of the present disclosure is illustrated.

[0024] Figure 3 and 4 An example of a timeline to support CSI reporting with DRX operation is illustrated in accordance with aspects of the present disclosure.

[0025] Figure 5 and 6 A block diagram of an apparatus supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown.

[0026] Figure 7A block diagram of a user equipment (UE) communication manager supporting CSI reporting with DRX operation according to aspects of the present disclosure is shown.

[0027] Figure 8 A diagram of a system supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown.

[0028] Fig. 9 and 10 A block diagram of an apparatus supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown.

[0029] Fig.11 A block diagram of a base station communication manager supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown.

[0030] Fig.12 A diagram of a system supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown.

[0031] Figure 13-17 A flow chart illustrating a process of supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0032] A wireless communication system may include multiple communication devices, such as user equipment (UE) and a base station that can provide wireless communication services to the UE. For example, such a base station may be a next-generation node B or giga-NodeB (both of which may be referred to as gNB) that can support multiple radio access technologies (RATs) including a fourth generation (4G) system (such as a long term evolution (LTE) system) and a fifth generation (5G) system (which may be referred to as a new radio (NR)) system. Some UEs may support channel state information (CSI) operations, such as CSI reports. Some UEs may also support discontinuous reception (DRX) operations. In some examples, the UE may be configured to measure a reference signal sent by a base station only during the active duration of a DRX cycle period and provide a CSI report to the base station. According to the wake-up signal configuration, the UE may be configured to support CSI operations, such as during the active duration of a DRX cycle period. Specifically, the UE may be configured to send a CSI report based on receiving a wake-up signal from a base station during the inactive duration of a DRX cycle period.

[0033] For example, the UE may be configured to monitor the pre-wake-up window (also referred to as the wake-up signal monitoring opportunity) during the inactivity duration of the DRX cycle period to receive a wake-up signal. In some examples, if the UE receives a wake-up signal during the wake-up signal monitoring opportunity and the wake-up signal indicates that the UE will wake up, the UE may start the active duration of the DRX cycle period. In addition, if the UE is configured to perform CSI reporting during the active duration of the DRX cycle period, the UE may send a CSI report on periodic or semi-persistent resources configured by the base station during the active duration of the DRX cycle period. Otherwise, if the UE does not receive a wake-up signal during the wake-up signal monitoring opportunity, the UE may choose not to power on during the active duration of the DRX cycle period. Therefore, during the active duration of the DRX cycle period, the UE may not provide any CSI report to the base station on the configured periodic or semi-persistent resources.

[0034] As the demand for communication efficiency increases, CSI reporting may become increasingly important for beam management in addition to other wireless operations. For example, CSI reporting may enable maintenance or improvement of beam link quality between a base station and a UE. In addition, for a UE operating according to a wake-up signal configuration, it is particularly beneficial to maintain a directional communication beam for receiving the wake-up signal to save power and for receiving control information and data with sufficient reliability and throughput. Existing wireless communication systems may not be able to provide satisfactory CSI operation through DRX operation according to the wake-up configuration, and therefore may not be able to support sufficient beam management, for example, for high reliability and low latency applications.

[0035] Various aspects of the described technology relate to configuring a UE to support CSI operations, such as CSI reporting through DRX operations in a 5G system. For example, the described technology may provide a UE with monitoring of a wake-up signal monitoring opportunity, and if the UE does not receive a wake-up signal or if the UE is not instructed to wake up, the UE may send an indication to the base station that the UE requests a CSI report in the first active duration of the corresponding DRX cycle period. The base station may receive the indication and prepare to receive a CSI report from the UE in the first active duration of the DRX cycle period. In this way, the UE may provide a CSI report during the DRX cycle period to improve reliability and throughput. In some aspects, the described CSI reporting technology may be used to improve beam management in a 5G system. In some aspects, the base station may configure the UE to send an indication for CSI reporting to the base station. In some examples, the UE may be configured with persistent scheduling resources or semi-persistent scheduling resources, and the UE may send CSI reports on these resources. Alternatively, the UE may be configured to automatically send a CSI report (e.g., without receiving a request or trigger from the base station). The UE may be configured to send an indication for CSI reporting during the DRX cycle period. The duration may be a portion of the active duration of the DRX cycle period or may be a separate active duration configured by the base station for the UE to send the indication. The UE may also be configured to send the CSI report in a separate duration of the DRX cycle period, which may be a portion of the active duration of the DRX cycle period or may be a separate active duration configured by the base station for the UE to send the CSI report. Thus, the UE may support CSI operation through DRX operation in the 5G system independently of the wake-up signal configuration.

[0036] Specific aspects of the subject matter described in the present disclosure may be implemented to achieve one or more of the following potential advantages, among others. The technology employed by the UE may provide benefits and enhancements to the operation of the UE. For example, when operating in a 5G system, the operations performed by the UE may improve directional communications. By maintaining a directional communication beam for receiving a wake-up signal, the UE may reduce power consumption by reducing the delay associated with receiving the wake-up signal, and thus may also improve the reliability of directional communications. Additionally or alternatively, configuring the UE to send a CSI report during DRX operation may provide improvements in beam management of the UE. For example, compared to some wireless communication systems in which CSI operation by DRX operation may not be satisfactory, an enhanced CSI operation may be provided by configuring the UE to send an indication that the UE requests a CSI report during the active duration of the DRX cycle period. The indication that the UE requests a CSI report during the active duration of the DRX cycle period may improve the CSI report in the DRX cycle period by reducing the delay associated with the CSI report, thereby improving the efficiency of directional communications between the UE and the base station. Additionally or alternatively, configuring the UE to send a CSI report during the active duration regardless of whether the UE receives a wake-up indication may support CSI reporting efficiency. Improvements to CSI reporting efficiency may facilitate improved spectral efficiency and higher data rates. Among other benefits, the described techniques may thereby facilitate increased efficiency and throughput of beam operations in wireless communication systems.

[0037] Various aspects of the present disclosure are initially described in the context of a wireless communication system. Various aspects of the present disclosure are then illustrated and described with reference to a timeline related to CSI reporting over DRX operation. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow charts related to channel state information reporting over discontinuous reception operation.

[0038] Figure 1 An example of a wireless communication system 100 supporting CSI reporting through DRX operation in accordance with various aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or an NR network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination of the foregoing.

[0039] Base stations 105 may be dispersed throughout a geographic area to form wireless communication system 100 and may be devices of different forms or capabilities. Base stations 105 and UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which UEs 115 and base stations 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographic area in which base stations 105 and UEs 115 may support communication of signals according to one or more radio access technologies.

[0040] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100 and each UE 115 may be stationary or mobile or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), such as Figure 1 as shown in .

[0041] The base stations 105 may communicate with the core network 130 or with each other or both. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate 130 with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network) via backhaul links 120 (e.g., via X2, Xn, or other interfaces), or both directly and indirectly. In some examples, the backhaul links 120 may be or include one or more wireless links. The one or more base stations 105 described herein may include or may be referred to by those of ordinary skill in the art as base transceiver stations, radio base stations, access points, radio transceivers, node Bs, eNodeBs (eNBs), next generation node Bs or giga-NodeBs (any of which may be referred to as gNBs), home node Bs, home eNodeBs, or other suitable terms.

[0042] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among others. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among others, and UE 115 may be implemented in a variety of objects, such as appliances or vehicles, meters, etc., among others. The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base stations 105 and network devices including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among others, such as Figure 1 shown.

[0043] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 via one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., bandwidth portion (BWP)) of a radio frequency spectrum band operating according to one or more physical layer channels of a given radio access technology (e.g., LTE, LTE-A, LTE-APro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating the operation of the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to the carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0044] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates operations with other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located for discovery by UE 115 according to a channel raster. A carrier may operate in a standalone mode, in which initial acquisition and connection may be performed by UE 115 via the carrier, or in a non-standalone mode, in which a different carrier (e.g., the same or different radio access technology) is used to anchor the connection.

[0045] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105 or a downlink transmission from the base station 105 to the UE 115. A carrier may carry downlink communications or uplink communications (e.g., in FDD mode) or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0046] A carrier may be associated with a particular bandwidth of a radio spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) determined for a carrier of a particular radio access technology. A device (e.g., a base station 105, a UE 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communication over a particular carrier bandwidth, or may be configured to support communication over one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a subband, a BWP) or all of a carrier bandwidth.

[0047] The signal waveform transmitted by the carrier may be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system using MCM technology, a resource element may be composed of a symbol duration (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol duration and the subcarrier spacing are inversely proportional. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE 115. Wireless communication resources may refer to radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity of communications with the UE 115.

[0048] One or more carrier parameter sets may be supported, where the parameter set may include subcarrier spacing (Δf) and cyclic prefix. A carrier may be divided into one or more BWPs with the same or different parameter sets. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be restricted to one or more active BWPs.

[0049] The time interval of the base station 105 or the UE 115 may be expressed as a multiple of a basic time unit, for example, T s =1 / ((Δf max ·N f )) seconds of sampling duration, where Δf max It can indicate the maximum supported subcarrier spacing, N f The maximum supported discrete Fourier transform (DFT) size may be indicated. The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0050] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided into (e.g., in the time domain) subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol durations (e.g., depending on the length of the cyclic prefix appended to each symbol duration). In some wireless communication systems 100, the time slot may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol duration may contain one or more (e.g., N f ) sampling durations. The duration of a symbol duration may depend on the subcarrier spacing or the operating frequency band.

[0051] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol durations in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0052] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by multiple symbol durations and may span a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a group of UEs 115. For example, one or more UEs 115 may monitor or search a control region for control information according to one or more search space sets, each search space set may include one or more control channel candidates of one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information of a control information format having a given payload size. A search space set may include a common search space set configured for sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a specific UE 115.

[0053] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with a base station 105 (e.g., via a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), etc.) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) through which a logical communication entity operates. Depending on various factors such as the capabilities of the base station 105, such cells may range from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell may be or include, among other things, a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, etc.

[0054] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to a UE 115 with a service subscription to a network provider supporting the macro cell. A small cell may be associated with a base station 105 with lower power than a macro cell, and the small cell may operate in the same or different (e.g., authorized, unauthorized) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 with a service subscription to a network provider or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a home or office). A base station 105 may support one or more cells and may also support communications using one or more component carriers on one or more cells. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0055] In some examples, the base stations 105 may be mobile and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0056] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and in some examples, transmissions from different base stations 105 may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0057] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or base stations 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.

[0058] Some UEs 115 may be configured to adopt an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but does not support simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not engaged in active communications, operating with limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0059] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations of the foregoing. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE115 may be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0060] In some examples, UE 115 can also communicate directly with other UE 115 via device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocol). One or more UE 115 utilizing D2D communication can fall within the geographic coverage area 110 of base station 105. Other UE 115 in such a group can be outside the geographic coverage area 110 of base station 105 or cannot receive transmissions from base station 105. In some examples, a group of UE 115 communicating via D2D communication can utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some examples, base station 105 facilitates scheduling of resources for D2D communication. In other examples, D2D communication is performed between UE 115 without involving base station 105.

[0061] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes or interconnects packets to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transmitted via a user plane transport entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. The operator IP service 150 may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

[0062] Some network devices, such as base stations 105, may include subcomponents such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs). Each access network transport entity 145 may include one or more antenna planes. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0063] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to serve a UE 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0064] The wireless communication system 100 may also operate in a super high frequency (SHF) region (also known as a centimeter band) using a frequency band from 3 GHz to 30 GHz, or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also known as a millimeter wave band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the various devices may be smaller and more closely spaced than the UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be used on transmissions using one or more different frequency regions, and the designated use of frequency bands on these frequency regions may vary by country or regulatory agency.

[0065] The wireless communication system 100 can use both licensed and unlicensed radio spectrum bands. For example, the wireless communication system 100 can employ licensed assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as a 5 GHz industrial, scientific, and medical (ISM) band. When operating in an unlicensed radio spectrum band, devices such as base stations 105 and UEs 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on a carrier aggregation configuration combined with component carriers operating in a licensed band (e.g., LAA). Operations in the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0066] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna planes that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna component such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having multiple rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna plane may support radio frequency beamforming for signals sent via the antenna ports.

[0067] The base station 105 or UE 115 may use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. For example, multiple signals may be sent by a transmitting device via different antennas or different antenna combinations. Similarly, a receiving device may receive multiple signals via different antennas or different antenna combinations. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are sent to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are sent to multiple devices.

[0068] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference and other signals experience destructive interference. Adjustments to signals transmitted via antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element can be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).

[0069] The base station 105 or the UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna planes) to perform beamforming operations for directional communications with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the base station 105 in different directions. For example, the base station 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device such as the base station 105 or by a receiving device such as the UE 115) a beam direction for which the base station 105 is to later transmit or receive.

[0070] Some signals, such as data signals associated with a particular receiving device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a receiving device such as UE 115). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 having the highest signal quality or other acceptable signal quality.

[0071] In some examples, transmissions by a device (e.g., base station 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may send reference signals (e.g., cell-specific reference signals (CRS), CSI reference signals (CSI-RS)) that may be precoded or unprecoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-plane codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to determine a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0072] When a receiving device (e.g., UE 115) receives various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station 105, it can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by processing the received signals according to different reception beamforming weight sets (e.g., different directional listening weight sets) applied to the signals received at multiple antenna elements of the antenna array, or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array, any of which can be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration can be arranged in a beam direction determined based on listening according to different reception configuration directions (e.g., a direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0073] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, the communication of the bearer layer or the packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reorganization to communicate through logical channels. The media access control (MAC) layer can perform priority processing and multiplex logical channels into transport channels. The MAC layer can also use error detection technology, error correction technology, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection between the base station 105 or the core network 130 that supports the radio bearer of the user plane data for UE 115. At the physical layer, the transport channel can be mapped to the physical channel.

[0074] UE 115 and base station 105 can support retransmission of data to increase the possibility of successfully receiving data. Hybrid automatic repeat request (HARQ) feedback is a technology for increasing the possibility of correctly receiving data through communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput of the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device can support HARQ feedback for the same time slot, where the device can provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other examples, the device can provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0075] Figure 2 An example of a wireless communication system 200 that supports CSI reporting through DRX operation according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. For example, the wireless communication system 200 can include a base station 105 and a UE 115 within a geographic coverage area 110. The base station 105 and the UE 115 can be reference Figure 1 Examples of corresponding devices described. In some examples, the wireless communication system 200 can support multiple radio access technologies, including 4G systems such as LTE systems, LTE-A systems, or LTE-APro systems, and 5G systems (which may be referred to as NR systems). The wireless communication system 200 can support improvements in power consumption, spectrum efficiency, higher data rates, and in some examples, can promote enhanced efficiency of CSI reporting through DRX operation with high reliability and low latency, among other benefits.

[0076] Base station 105 and UE 115 may be configured with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output communications or beamforming or any combination thereof. The antennas of base station 105 and UE 115 may be located in one or more antenna arrays or antenna planes that can support multiple-input multiple-output operations or transmit or receive beamforming. For example, the antennas or antenna arrays of base station 105 may be co-located at an antenna component (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located at different geographical locations. Base station 105 may have an antenna array having multiple rows and columns of antenna ports that base station 105 can use to support beamforming for communications with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various multiple-input multiple-output or beamforming operations. Additionally or alternatively, the antenna plane may support radio frequency beamforming for signals sent via one or more antenna ports. Base station 105 and UE 115 may thus be configured to support directional communications using multiple antennas.

[0077] In the wireless communication system 200, the UE 115 may support various radio resource control (RRC) modes to, among other things, save resources (e.g., time and frequency resources of the wireless communication system 200), the battery life of the UE 115. The RRC mode may include one or more of an RRC connection mode, an RRC idle mode, or an RRC inactive mode. In the RRC connection mode, the UE 115 may have an active connection with the base station 105 and operate according to a first power mode (e.g., a normal power mode). In the RRC inactive mode, the UE 115 may also have an active connection with the base station 105, but may operate according to a second power mode (e.g., a low power mode). In the RRC idle mode, the UE 115 may not have an active connection with the base station 105, and therefore may operate according to a third power mode (e.g., a lower power mode compared to the RRC inactive mode).

[0078] UE 115 may be configured to support DRX operation for directional communication using multiple antennas when operating in RRC mode (e.g., RRC inactive mode). For example, in RRC connected mode, DRX operation may achieve power savings by allowing UE 115 to shut down for one or more durations as directed by base station 105. In RRC idle mode or RRC inactive mode, DRX operation may be used to further extend the time that UE 115 spends in a lower power mode. Therefore, DRX operation provides improvements in resource utilization and power savings for UE 115. In some examples, UE 115 may be configured to also support CSI operation to further provide improvements in power savings and operation of UE 115. For example, UE 115 may be configured to support CSI operation to manage or improve directional communication between base station 105 and UE 115.

[0079] For example, operations performed by the base station 105 and the UE 115 may provide improvements to directional operations in the wireless communication system 200. Furthermore, operations performed by the base station 105 and the UE 115 may provide benefits and enhancements to the operations of the UE 115. For example, supporting CSI reporting over DRX operations in the wireless communication system 200 may reduce various operational characteristics, such as power consumption. Operations performed by the base station 105 and the UE 115 may also improve the efficiency of the UE 115 by reducing delays associated with processes related to high reliability and low latency directional communication operations, such as beam management operations.

[0080] Figure 3 An example of a timeline 300 for supporting CSI reporting through DRX operation according to aspects of the present disclosure is illustrated. In some examples, the timeline 300 may also be implemented as described in reference to Figure 1 and Figure 2 Aspects of the described wireless communication systems 100 and 200. For example, timeline 300 may be based on the configuration of base station 105 or UE 115 and may be implemented by UE 115. Figure 3 In the example shown, timeline 300 applies to an implementation or instance when UE 115 is configured with CSI operation capability through DRX operation in a 5G system.

[0081] The timeline 300 may include a DRX cycle period 305, which may correspond to a time resource (e.g., symbol duration, slot duration, subframe duration, frame duration) and a frequency resource (e.g., subcarrier, carrier). The timeline 300 may also include a pre-wake-up window 310 (also referred to as a wake-up signal monitoring opportunity) and an active duration 315 (also referred to as a DRXON duration). The pre-wake-up window 310 or the active duration 315 or both may also correspond to time and frequency resources. For example, the pre-wake-up window 310 and the active duration 315 may correspond to a plurality of subframe cycle periods, each subframe in the cycle period having a subframe index, for example, ranging from 0 to 9. Each subframe cycle period or subframe index or both may be associated with one or more symbols and subcarriers.

[0082] refer to Figure 1 and 2 , base station 105 may configure a pre-wakeup window for UE 115 to reserve resources (e.g., time and frequency resources). Under DRX operation, UE 115 may be configured to monitor the pre-wakeup window for the DRX cycle period. In some examples, UE 115 may be configured to monitor the pre-wakeup window for the DRX cycle period when in a first mode such as RRC mode. For example, referring to Figure 1 and 2 And according to timeline 300, UE 115 may monitor pre-wake window 310 over DRX cycle period 305. In some examples, pre-wake window 310 may be part of DRX cycle period 305 to preserve resources (e.g., time and frequency resources) or battery life of UE 115, among other benefits. For example, pre-wake window 310 may facilitate power saving benefits for UE 115 by reducing unnecessary wake-up opportunities for UE 115.

[0083] While monitoring the pre-wakeup window 310 in the DRX cycle period 305, the UE 115 may receive a wakeup signal from the base station 105, which may carry an indication 115 of an active duration 315 of the DRX cycle period 305 for the UE. Figure 1 and Figure 2, the base station 105 may send a wake-up signal 210 to the UE 115 in the pre-wake-up window via one or more directional beams 205 (e.g., downlink directional beams). The UE 115 may receive the wake-up signal 210 in the pre-wake-up window via one or more directional beams 205 (e.g., downlink directional beams). The wake-up signal 210 may indicate whether the UE 115 must wake up within the duration of the DRX cycle period. For example, the wake-up signal 210 may provide an indication that the UE 115 wakes up in the active duration 315 associated with the DRX cycle period 305 to receive directional communications (e.g., control information or data or both) from the base station 105.

[0084] refer to Figure 1 and 2 And according to the timeline 300, the base station 105 may not send a wake-up signal 210 to the UE 115 via one or more directional beams 205 (e.g., a downlink directional beam) in the pre-wake-up window 310. Here, the UE 115 may avoid powering on during the active duration 315 of the DRX cycle period 305 because the absence of the wake-up signal 210 may be an indication to the UE 115 that there is no upcoming communication (e.g., control information or data or both) from the base station 105, and thus the UE 115 may save power.

[0085] For example, the UE 115 may not monitor a downlink control channel (e.g., a physical downlink control channel (PDCCH)) during the active duration 315. In other words, when the UE 115 receives a wake-up signal (e.g., the wake-up signal 210), the UE 115 may monitor the downlink control channel (e.g., the physical downlink control channel (PDCCH)) only during the active duration 315. Otherwise, the active duration 315 may be skipped. The DRX cycle period 305 may include an inactive duration (also referred to as an offset) between the pre-wake-up window 310 and the active duration 315. During the inactive duration 320, the UE 115 may enter a low power mode, thereby further reducing power consumption. The UE 115 may exit the low power mode during the active duration 315 of the DRX cycle period 305. In some examples, the UE 115 may enter a low power mode when the active duration 315 is skipped, thereby further reducing power consumption.

[0086] In some examples, UE 115 can be configured to support CSI operation to further provide improvements in power conservation and operation of UE 115 and for managing directional communications between base station 105 and UE 115. For example, base station 105 can send a reference signal (e.g., CRS, CSI reference signal (CSI-RS)). UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-plane codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 can use similar techniques to send signals multiple times in different directions (e.g., for determining a beam direction for subsequent transmission or reception by UE 115) or for sending signals in a single direction (e.g., for sending data to a receiving device).

[0087] In some examples, UE 115 may be configured to measure reference signals and provide CSI reports only in the active duration of the DRX cycle period. For example, UE 115 may be configured to provide CSI reports only in the active duration 315 of the DRX cycle period 305. In some other examples, UE 115 may be configured to support CSI operations configured according to a wake-up signal. That is, UE 115 may be configured to send CSI reports based on receiving a wake-up signal (e.g., wake-up signal 210) in the DRX cycle period. For example, if UE 115 is configured to provide CSI reports, UE 115 may send CSI reports 210 on configured periodic or semi-persistent resources in the active duration 315 of the DRX cycle period 305 based on the reception of the wake-up signal. Otherwise, if (e.g., in the pre-wake-up window 310) UE 115 does not receive the wake-up signal 210, UE 115 may not power on in the active duration 315 of the DRX cycle period 305 to send CSI reports. Therefore, the UE 115 does not provide any CSI reports on the configured periodic or semi-persistent resources in the active duration 315 of the DRX cycle period 305 .

[0088] As the demand for communication efficiency increases, CSI reporting may be important for beam management (e.g., for directional beam 205 or directional beam 215, or both). For example, CSI reporting may be important for maintaining or improving beam link quality between base station 105 and UE 115. In some examples, when UE 115 is configured to operate according to a wake-up signal configuration, maintaining a directional communication beam for wake-up signal 210 may be important for power conservation and reliability of base station 105 and UE 115. In addition, maintaining a directional communication beam for base station 105 and UE 115 may be important for receiving control information and data to improve reliability and throughput of base station 105 and UE 115.

[0089] The base station 105 may configure the UE 115 to send an indication (also referred to as a CSI report request 220) for CSI reporting (e.g., sending a CSI report 225). In some examples, the base station 105 may configure the UE 115 with persistently scheduled resources or semi-persistently scheduled resources on which the UE 115 may send the CSI report 225. Alternatively, the base station 105 may configure the UE 115 to automatically send the CSI report 225 (e.g., without receiving a request or trigger from another communication device). To support these operations, the base station 105 may configure the UE 115 to send the CSI report request 220 for CSI reporting during the duration of the DRX cycle period. Reference is made herein to Figure 4 An example timeline for CSI reporting with DRX operation is described.

[0090] Figure 4 An example of a timeline 400 for supporting CSI reporting through DRX operation according to aspects of the present disclosure is illustrated. In some examples, the timeline 400 may also be implemented as described in reference to Figure 1 and Figure 2 Aspects of the described wireless communication systems 100 and 200. For example, timeline 400 may be based on the configuration of base station 105 or UE 115 and may be implemented by UE 115. Figure 4 In the example shown, timeline 400 applies to an implementation or instance in a 5G system when UE 115 is configured with CSI operation capability through DRX operation.

[0091] The timeline 400 may include a DRX cycle period 405, which may correspond to a time resource (e.g., a symbol duration, a slot duration, a subframe duration, a frame duration) and a frequency resource (e.g., a subcarrier, a carrier). The timeline 400 may also include a pre-wake-up window 410 and a plurality of activity durations (such as an activity duration 415, an activity duration 420, and an activity duration 425). The pre-wake-up window 410, the activity duration 415, the activity duration 420, the activity duration 425, or any combination thereof may also correspond to time and frequency resources. For example, the pre-wake-up window 410, the activity duration 415, the activity duration 420, the activity duration 425, or any combination thereof may correspond to a plurality of subframe cycle periods, each subframe in a cycle period having a subframe index ranging from 0 to 9. Each subframe cycle period or the subframe index or both may be associated with one or more symbols and subcarriers.

[0092] exist Figure 4 In the example of FIG. 4 , one or more of the active duration 415, the active duration 420, and the active duration 425 may be continuous in the DRX cycle period 405. Alternatively, one or more of the active duration 415, the active duration 420, and the active duration 425 may be discontinuous in the DRX cycle period 405. In some examples, one or more of the active duration 415, the active duration 420, and the active duration 425 may be part of the same active duration of the DRX cycle period 405. That is, one or more of the active duration 415, the active duration 420, and the active duration 425 may form a single active duration of the DRX cycle period 405.

[0093] As reference Figure 2 The described base station 105 can configure a pre-wake-up window for the UE 115 to reserve resources (e.g., time and frequency resources). In some examples, the pre-wake-up window can be referred to as a wake-up signal monitoring opportunity. Under some DRX operations, the UE 115 can be configured to monitor the pre-wake-up window for the DRX cycle period. In some examples, the UE 115 can be configured to monitor the pre-wake-up window for the DRX cycle period when in RRC mode. For example, refer to Figure 1 and 2 And according to timeline 400, UE 115 may monitor pre-wakeup window 410 over DRX cycle period 405. In some examples, pre-wakeup window 410 may be a portion of DRX cycle period 405 to preserve resources (e.g., time and frequency resources) or battery life of UE 115. For example, pre-wakeup window 410 may provide power saving advantages to UE 115 by reducing unnecessary wakeup opportunities for UE 115.

[0094] refer to Figure 2 And according to timeline 400, base station 105 can configure UE 115 by sending a configuration message via one or more directional beams 205 (e.g., a downlink directional beam). The configuration message may include a configuration of a pre-wake-up window 410 associated with directional communication. In some examples, the configuration message may be an RRC configuration message. When in RRC connected mode, UE 115 may receive the configuration message via one or more directional beams 205 (e.g., a downlink directional beam). Base station 105 may enable UE 115 to power on and monitor the pre-wake-up window 410 on the inactivity duration of the DRX cycle period 405 based on the configuration information carried in the RRC configuration message.

[0095] When monitoring the pre-wakeup window 410 in the DRX cycle period 405, the UE 115 may receive a wakeup signal from the base station 105. For example, referring to Figure 1 and 2 , the base station 105 may send a wake-up signal 210 to the UE 115 in the pre-wake-up window 410 via one or more directional beams 205 (e.g., downlink directional beams). The UE 115 may receive the wake-up signal 210 in the pre-wake-up window 410 via one or more directional beams 205 (e.g., downlink directional beams). The wake-up signal 210 may indicate whether the UE 115 must wake up within the duration of the DRX cycle period 405. For example, the wake-up signal 210 may provide an indication for the UE 115 to wake up in the active duration 425 associated with the DRX cycle period 405 to receive directional communications, such as control information or data or both, from the base station 105.

[0096] refer to Figure 2 And according to the timeline 400, the base station 105 may not send the wake-up signal 210 to the UE 115 via one or more directional beams 205 (eg, downlink directional beams) in the pre-wake-up window 410. Figure 4 In the example of , UE 115 can be configured to support CSI operation to further provide improvements in power conservation and operation of UE 115 and for managing directional communications between base station 105 and UE 115. In some examples, because UE 115 does not receive a wake-up signal in pre-wake-up window 410, UE 115 may not be able to send a CSI report (e.g., CSI report 225) to base station 105.

[0097] According to timeline 400, UE 115 may be configured to send an indication (e.g., CSI report request 220) of a CSI report (e.g., send CSI report 225) regardless of wake-up signal 210. In some examples, base station 105 may configure UE 115 with persistent scheduling resources or semi-persistent scheduling resources on which UE 115 may send CSI report 225. Alternatively, base station 105 may configure UE 115 to automatically send CSI report 225 (e.g., without receiving a request or trigger from another communication device). Thus, to support these operations, base station 105 may configure UE 115 to support CSI reporting for the duration of the DRX cycle period regardless of wake-up signaling.

[0098] The UE 115 may send a CSI report (e.g., CSI report 225) on one or more resources based on monitoring the pre-wakeup window 410 in the active duration 420 of the DRX cycle period 405. The UE 115 may measure one or more CSI reference signals in the active duration 420 of the DRX cycle period 405 and determine the CSI based on the measurement. The UE 115 may send the CSI in the CSI report (e.g., CSI report 225) based on the CSI satisfying a threshold. In some examples, the CSI may include a channel quality indication or a layer 1 reference signal received power (L1-RSRP). The UE 115 may therefore send the CSI report when the channel quality indication or the L1-RSRP or both satisfy the threshold.

[0099] In some examples, base station 105 may send and UE 115 may receive a message (e.g., an RRC configuration message) including a CSI report configuration. UE 115 may automatically send a CSI report (e.g., CSI report 225) on one or more resources based on the CSI report configuration during the active duration 420 of DRX cycle period 405. For example, referring to Figure 2 and Figure 4 , the UE 115 may send a CSI report (e.g., CSI report 225) on one or more resources in the active duration 420 of the DRX cycle period 405 regardless of receiving the wake-up signal 210 in the pre-wake-up window 410. The one or more resources may be one or more persistently scheduled resources or one or more semi-persistently scheduled resources. When the UE 115 performs automatic reporting, the base station 105 may have to blindly monitor the one or more resources to receive the CSI report from the UE 115.

[0100] The base station 105 may send and the UE 115 may receive a message including a configuration (e.g., an RRC configuration message) associated with a CSI report count. The UE 115 may determine the CSI report count based on the configuration. Thus, in some examples, the UE may send a CSI report (e.g., CSI report 225) on one or more resources in the active duration 420 of the DRX cycle period 405 based on the CSI report count. In some examples, the UE 115 may avoid sending a CSI report (e.g., CSI report 225) on one or more resources in the active duration 420 of the DRX cycle period 405 based on the CSI report count satisfying a threshold. As a result, the UE 115 may store and send the CSI report in a subsequent DRX cycle period.

[0101] In some examples, UE 115 may be configured to send an indication (e.g., CSI report request 220) that UE 115 requests a CSI report in the active duration 415 of DRX cycle period 405. In other words, UE 115 may signal base station 105 that UE 115 requests a CSI report. In response, base station 105 may prepare to receive a CSI report (e.g., CSI report 225) from UE 115. In some examples, base station 105 may send and UE 115 may receive a message (e.g., an RRC configuration message) including a configuration indicating one or more resources of an uplink channel for sending the indication that UE 115 requests a CSI report. The uplink channel may be a physical uplink control channel (PUCCH).

[0102] The UE 115 may thus send an indication (e.g., CSI report request 220) that the UE 115 requests a CSI report in the active duration 415 of the DRX cycle period 405. For example, the UE 115 may send the indication on one or more resources of an uplink channel. In some examples, the one or more resources of the uplink channel for the indication that the UE 115 requests a CSI report correspond to one or more scheduling request (SR) resources. In some examples, the base station 105 or the UE 115 or both may be configured to reuse some resources or channels for CSI reporting. For example, SR resources within the configured active duration may be implicitly reused for CSI reporting indications.

[0103] In some examples, the UE 115 may be configured to start (e.g., activate or enable) a CSI report timer based on sending a UE 115 request CSI report indication (e.g., CSI report request 220) in an active duration 415 of the DRX cycle period 405. In some examples, the base station 105 may send and the UE 115 may receive a timer configuration corresponding to the CSI report timer. The UE 115 may start the CSI report timer based on the timer configuration. In some examples, the length of the active duration 420 of the DRX cycle period 405 may correspond to the CSI report timer. For example, the UE 115 may send a CSI report (e.g., CSI report 225) based on the CSI report timer (e.g., before the CSI report timer expires) in the active duration 420 of the DRX cycle period 405.

[0104] Thus, the active duration 420 of the DRX cycle period 405 may correspond to the number of CSI reports configured after the indication. Thus, the UE 115 may provide all CSI reports within the configured active duration 420. In some examples, the UE 115 may provide all CSI reports until a timer expires (e.g., a CSI report timer). The timer may be configured and activated by the base station 105 after the UE 115 sends the indication. In some other examples, the UE 115 may provide CSI reports according to the number and reporting timing determined by the configuration event. For example, the UE 115 may be configured to report CSI when the measured CSI (e.g., a channel quality indicator or L1-RSRP or both) is below or above a threshold.

[0105] In some examples, UE 115 may determine whether to monitor control information (e.g., beam update command) for UE 115 in a downlink control channel in an active duration 425 of DRX cycle period 405 based on the CSI report. UE 115 may monitor control information for UE 115 in a downlink control channel (e.g., PDCCH) in an active duration 425 of DRX cycle period 405 based on determining whether to monitor control information for UE 115 in the downlink control channel. Alternatively, UE 115 may avoid monitoring control information for UE 115 in a downlink control channel (e.g., PDCCH) in an active duration 425 of DRX cycle period 405. Base station 105 UE 115 may send and UE 115 may receive a message including a downlink channel timer configuration. UE 115 may start a downlink channel timer in an active duration 420 of DRX cycle period 405 based on sending the CSI report, and may monitor control information for UE 115 in a downlink control channel in an active duration 425 of DRX cycle period 405 based on the downlink channel timer.

[0106] The active duration 425 of the DRX cycle period 405 may be a duration after the CSI report to the end of the DRX cycle period 405. In some examples, the active duration 425 of the DRX cycle period 405 may be a duration after the CSI report and until the CSI report timer expires. The CSI report timer may be configured and activated by the base station 105 after the UE 115 sends the CSI report. In some examples, the active duration 425 of the DRX cycle period 405 may be a zero duration (in other words, there may be no active duration 425 in the DRX cycle period 405) and the UE 115 may not perform PDCCH monitoring after the CSI report. In this example, if the base station 105 sends control information (e.g., for beam updating) via the PDCCH to improve directional communication between the base station 105 and the UE 115, the base station 105 may send (e.g., resend) a wake-up signal to the UE 115 in the next DRX cycle period so that the UE can monitor the PDCCH and receive the control information.

[0107] In some examples, UE 115 may receive control information for UE 115 in active duration 425 of DRX cycle period 405 based on the CSI report sent in active duration 415. For example, UE 115 may determine beam operation of one or more directional beams of UE 115 based on the control information. The beam operation may be a beam update operation of one or more directional beams 215 associated with UE 115. UE 115 may update one or more parameters of the one or more directional beams 215 based on the beam update operation and communicate using the one or more directional beams according to the updated parameters.

[0108] For example, the operations performed by the base station 105 and the UE 115 can improve directional operations in the wireless communication system 200. In addition, the operations performed by the base station 105 and the UE 115 can provide benefits and enhancements to the operations of the UE 115. For example, supporting CSI reporting over DRX operations in the wireless communication system 200 can reduce operating characteristics, such as power consumption. The operations performed by the base station 105 and the UE 115 can also provide efficiencies for the UE 115 by reducing delays associated with processes related to high reliability and low latency directional communication operations, such as beam management operations.

[0109] Figure 5 A block diagram of a device 505 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The device 505 can be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a UE communication manager 515, and a transmitter 520. The UE communication manager 515 may be implemented at least in part by one or both of a modem and a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0110] The receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to CSI reports operated by DRX). The information may be delivered to other components of the device 505. The receiver 510 may be a reference Figure 8 Examples of aspects of transceiver 820 are described. Receiver 510 may use a single antenna or a group of antennas.

[0111] The UE communication manager 515 can monitor the wake-up signal monitoring timing during the inactive period of the DRX cycle period; determine that there is no wake-up signal for the UE in the wake-up signal monitoring timing based on monitoring the wake-up signal monitoring timing; send a CSI report on one or more resources in the first active period of the DRX cycle period based on the absence of the wake-up signal in the wake-up signal monitoring timing; and receive control information for the UE in the second active period of the DRX cycle period based on the CSI report.

[0112] Transmitter 520 can transmit signals generated by other components of device 505. In some examples, transmitter 520 can be collocated with receiver 510 in a transceiver component. For example, transmitter 520 can be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The transmitter 520 may utilize a single antenna or a group of antennas.

[0113] Figure 6 A block diagram of a device 605 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The device 605 can be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a UE communication manager 615, and a transmitter 635. The UE communication manager 615 may be implemented at least in part by one or both of a modem and a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0114] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to CSI reports operated by DRX). The information may be delivered to other components of the device 605. The receiver 610 may be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 610 may utilize a single antenna or a group of antennas.

[0115] UE communication manager 615 may be an example of aspects of UE communication manager 515 as described herein. UE communication manager 615 may include wake-up component 620, reporting component 625, and control component 630. UE communication manager 615 may be an example of aspects of UE communication manager 810 described herein.

[0116] The wake-up component 620 may monitor the wake-up signal monitoring opportunity during the inactive period of the DRX cycle period. The wake-up component 620 may determine that there is no wake-up signal for the UE during the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. The reporting component 625 may send a CSI report on one or more resources during the first active period of the DRX cycle period based on the absence of the wake-up signal during the wake-up signal monitoring opportunity. The control component 630 may receive control information for the UE during the second active period of the DRX cycle period based on the CSI report.

[0117] The transmitter 635 can transmit signals generated by other components of the device 605. In some examples, the transmitter 635 can be collocated with the receiver 610 in the transceiver component. For example, the transmitter 635 can be referenced Figure 8 Examples of various aspects of the transceiver 820 are described. The transmitter 635 may utilize a single antenna or a group of antennas.

[0118] Figure 7 A block diagram of a UE communication manager 705 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The UE communication manager 705 may be an example of aspects of the UE communication manager 515, the UE communication manager 615, or the UE communication manager 810 described herein. The UE communication manager 705 may include a wake-up component 710, a reporting component 715, a control component 720, an indicator component 725, a timer component 730, a signal component 735, and a counting component 740. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses).

[0119] The wake-up component 710 may monitor the wake-up signal monitoring opportunity in the inactive duration of the DRX cycle period. In some examples, the wake-up component 710 may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. In some examples, the wake-up component 710 may monitor the control information for the UE in the downlink control channel in the second active duration of the DRX cycle period based on determining whether to monitor the control information for the UE in the downlink control channel. In some examples, the receiving control information is based on the monitoring of the downlink control channel. In some examples, the wake-up component 710 may avoid monitoring the control information for the UE in the downlink control channel in the second active duration of the DRX cycle period based on the determination. In some examples, the wake-up component 710 may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. In some examples, sending a CSI report is based on the absence of a wake-up signal. In some examples, the downlink control channel includes a physical downlink control channel.

[0120] The reporting component 715 may send a CSI report on one or more resources in the first active duration of the DRX cycle period based on the absence of a wake-up signal in the wake-up signal monitoring opportunity. In some examples, the reporting component 715 may determine whether to monitor control information for the UE in the downlink control channel in the second active duration of the DRX cycle period based on the CSI report. In some examples, receiving the control information is based on the determination. In some examples, the reporting component 715 may receive a message including a CSI report configuration. In some examples, sending a CSI report on one or more resources includes automatically sending a CSI report on one or more resources based on the CSI report configuration. In some examples, the reporting component 715 may automatically send a CSI report including sending a CSI report on one or more resources, regardless of receiving a wake-up signal in the wake-up signal monitoring opportunity in the inactive duration of the DRX cycle period.

[0121] In some examples, the CSI report configuration includes an RRC configuration. In some examples, the one or more resources include one or more persistent scheduling resources. In some examples, the one or more resources include one or more semi-persistent scheduling resources. In some examples, one or more of the first activity duration or the second activity duration of the DRX cycle period are continuous. In some examples, one or more of the first activity duration or the second activity duration of the DRX cycle period are discontinuous. In some examples, the first activity duration and the second activity duration occur in the same activity duration of the DRX cycle period.

[0122] The control component 720 may receive control information for the UE in the second active duration of the DRX cycle period based on the CSI report. The indicator component 725 may send an indication of the UE requesting to report the CSI report in the first active duration of the DRX cycle period based on the absence of a wake-up signal in the wake-up signal monitoring opportunity. In some examples, the indicator component 725 may receive a message including a configuration of one or more resources of an uplink channel indicating the indication for sending the UE requesting to report the CSI report. In some examples, sending the indication of the UE requesting to report the CSI report includes sending the indication of the UE requesting to report the CSI report on one or more resources of the uplink channel. In some examples, the configuration includes an RRC configuration. In some examples, the uplink channel includes a physical uplink control channel. In some examples, one or more resources of the uplink channel for the indication of the UE requesting to report the CSI report correspond to one or more scheduling request resources.

[0123] The timer component 730 may start a CSI report timer based on sending an indication that the UE requests to report a CSI report. In some examples, sending the CSI report on one or more resources is based on the expiration of the CSI report timer. In some examples, the timer component 730 may receive a timer configuration corresponding to the CSI report timer. In some examples, starting the CSI report timer is based on the timer configuration. In some examples, the timer component 730 may start a downlink channel timer based on sending the CSI report on one or more resources. In some examples, the timer component 730 may receive a timer configuration corresponding to the downlink channel timer. In some examples, starting the downlink channel timer is based on the timer configuration.

[0124] The signal component 735 may measure one or more CSI reference signals in a first active duration of the DRX cycle period. In some examples, the signal component 735 may determine the CSI based on the measurement. In some examples, sending the CSI report includes sending the CSI in the CSI report based on the CSI satisfying a threshold. In some examples, the CSI includes a channel quality indicator. In some examples, the CSI includes a first layer reference signal received power.

[0125] The counting component 740 may receive a message including a configuration associated with a CSI report count. In some examples, the configuration includes an RRC configuration. In some examples, the counting component 740 may determine the CSI report count based on the RRC configuration. In some examples, sending the CSI report on one or more resources is based on the CSI report count. In some examples, the counting component 740 may avoid sending a subsequent CSI report in a third active duration of the DRX cycle period based on the CSI report count satisfying a threshold.

[0126] Figure 8 A diagram of a system 800 supporting CSI reporting through DRX operation according to various aspects of the present disclosure is shown. System 800 may include a device 805, which may be an example of a device 505, a device 605, or a UE 115 or include a component of a device 505, a device 605, or a UE 115. Device 805 may include components for two-way voice and data communications, including components for sending and receiving communications (including a UE communication manager 810, an input / output (I / O) controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840). These components may communicate electronically via one or more buses (e.g., a bus 845).

[0127] The UE communication manager 810 can monitor the wake-up signal monitoring opportunity during the inactive duration of the DRX cycle period; send a CSI report on one or more resources based on monitoring the wake-up signal monitoring opportunity during the first active duration of the DRX cycle period; and receive control information for the UE in the second active duration of the DRX cycle period based on the CSI report.

[0128] I / O controller 815 can manage input and output signals of device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some examples, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some examples, I / O controller 815 can utilize a computer such as 805. In other examples, the I / O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some examples, the I / O controller 815 may be implemented as part of a processor. In some examples, a user may interact with the device 805 via the I / O controller 815 or via hardware components controlled by the I / O controller 815.

[0129] The transceiver 820 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 820 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 820 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission and demodulate the packets received from the antenna. In some examples, the device 805 can have more than one antenna 825, which can send or receive multiple wireless transmissions simultaneously.

[0130] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed, cause the processor to perform various functions described herein. In some examples, the memory 830 may contain, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0131] Processor 840 may include an intelligent hardware device (e.g., a general purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a microcontroller, an application specific integrated circuit (ASIC)), a field programmable gate array (FPGA), a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some examples, processor 840 may be configured to operate a memory array using a memory controller. In other examples, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause device 805 to perform various functions (e.g., functions or tasks to support CSI reporting via DRX operation).

[0132] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some examples, the code 835 may not be directly executable by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0133] Fig. 9 A block diagram of a device 905 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The device 905 can be an example of aspects of the base station 105 as described herein. The device 905 may include a receiver 910, a base station communication manager 915, and a transmitter 920. The base station communication manager 915 may be implemented at least in part by one or both of a modem and a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0134] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to CSI reporting through DRX operation). The information may be passed to other components of the device 905. The receiver 910 may be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The receiver 910 may use a single antenna or a group of antennas.

[0135] The base station communication manager 915 may receive a CSI report on one or more resources in a first active duration of the DRX cycle period and send control information for the UE on a downlink control channel in a second active duration of the DRX cycle period based on the CSI report. The base station communication manager 915 may be an example of various aspects of the base station communication manager 1210 described herein.

[0136] The transmitter 920 can transmit signals generated by other components of the device 905. In some examples, the transmitter 920 can be collocated with the receiver 910 in the transceiver component. For example, the transmitter 920 can be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The transmitter 920 can utilize a single antenna or a group of antennas.

[0137] Fig.10 A block diagram of a device 1005 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The device 1005 can be an example of aspects of the device 905 or base station 105 as described herein. The device 1005 may include a receiver 1010, a base station communication manager 1015, and a transmitter 1030. The base station communication manager 1015 may be implemented at least in part by one or both of a modem and a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0138] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to CSI reports operated by DRX). The information may be delivered to other components of the device 1005. The receiver 1010 may be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The receiver 1010 may use a single antenna or a group of antennas.

[0139] The base station communication manager 1015 may be an example of aspects of the base station communication manager 915 as described herein. The base station communication manager 1015 may include a reporting component 1020 and a control component 1025. The base station communication manager 1015 may be an example of aspects of the base station communication manager 1210 described herein. The reporting component 1020 may receive a CSI report on one or more resources in a first active duration of a DRX cycle period. The control component 1025 may send control information for the UE on a downlink control channel in a second active duration of the DRX cycle period based on the CSI report.

[0140] Transmitter 1030 can transmit signals generated by other components of device 1005. In some examples, transmitter 1030 can be collocated with receiver 1010 in a transceiver component. For example, transmitter 1030 can be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The transmitter 1030 may utilize a single antenna or a group of antennas.

[0141] Fig.11A block diagram of a base station communication manager 1105 supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The base station communication manager 1105 can be an example of aspects of the base station communication manager 915, the base station communication manager 1015, or the base station communication manager 1210 described herein. The base station communication manager 1105 may include a reporting component 1110, a control component 1115, an indicator component 1120, a timer component 1125, a wake-up component 1130, and a counting component 1135. Each of these components can communicate with each other directly or indirectly (e.g., via one or more buses).

[0142] The reporting component 1110 may receive a CSI report on one or more resources in a first active duration of the DRX cycle period. In some examples, the reporting component 1110 may monitor the one or more resources and receive the CSI report on the one or more resources in the first active duration of the DRX cycle period based on the monitoring. In some examples, the reporting component 1110 may send a message including a CSI reporting configuration. In some examples, receiving the CSI report on the one or more resources in the first active duration of the DRX cycle period is based on the CSI reporting configuration.

[0143] In some examples, the CSI report configuration includes an RRC configuration. In some examples, the one or more resources include one or more persistent scheduling resources. In some examples, the one or more resources include one or more semi-persistent scheduling resources. In some examples, one or more of the first activity duration or the second activity duration of the DRX cycle period are continuous. In some examples, one or more of the first activity duration or the second activity duration of the DRX cycle period are discontinuous. In some examples, the first activity duration and the second activity duration occur in the same activity duration of the DRX cycle period.

[0144] The control component 1115 may send control information for the UE on a downlink control channel in a second active duration of the DRX cycle period based on the CSI report. In some examples, the downlink control channel includes a physical downlink control channel. The indicator component 1120 may receive an indication that the UE requests to report a CSI report in a first active duration of the DRX cycle period. In some examples, receiving a CSI report on one or more resources in the first active duration of the DRX cycle period is based on the indication. In some examples, the indicator component 1120 may send a message including a configuration indicating one or more resources of an uplink channel, the configuration being an indication of the UE requesting to report a CSI report. In some examples, receiving an indication that the UE requests to report a CSI report includes receiving an indication that the UE requests to report a CSI report on one or more resources of an uplink channel. In some examples, the configuration includes an RRC configuration.

[0145] The timer component 1125 may send a timer configuration corresponding to the CSI report timer. In some examples, the timer component 1125 may send a timer configuration corresponding to the downlink channel timer. The wake-up component 1130 may send a wake-up signal in a wake-up signal monitoring opportunity of a subsequent DRX cycle period, the wake-up signal indicating a third active duration of a subsequent DRX cycle period for the UE. In some examples, the wake-up component 1130 may send a downlink control channel of control information for the UE in the third active duration of the subsequent DRX cycle period based on the wake-up signal. The counting component 1135 may send a message including a configuration associated with a CSI report count. In some examples, the configuration includes an RRC configuration, and receiving a CSI report on one or more resources in the first active duration of the DRX cycle period is based on the CSI report count.

[0146] Fig.12 A diagram of a system 1200 supporting CSI reporting through DRX operation according to various aspects of the present disclosure is shown. System 1200 may include a device 1205, which may be an example of or include components of device 905, device 1005, or base station 105 as described herein. Device 1205 may include components for two-way voice and data communications, including components for sending and receiving communications (including base station communication manager 1210, network communication manager 1215, transceiver 1220, antenna 1225, memory 1230, processor 1240, and inter-station communication manager 1245). These components may communicate electronically via one or more buses (e.g., bus 1250).

[0147] The base station communication manager 1210 may receive a CSI report on one or more resources in a first active duration of the DRX cycle period and send control information for the UE on a downlink control channel in a second active duration of the DRX cycle period based on the CSI report. The network communication manager 1215 may manage communications with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1215 may manage data communication transmissions for client devices such as one or more UEs 115.

[0148] The transceiver 1220 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 1220 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1220 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission and demodulate packets received from the antenna. In some examples, the device 1205 can have more than one antenna 1225, which can send or receive multiple wireless transmissions simultaneously.

[0149] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer readable code 1235 including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some examples, memory 1230 may include, among other things, a BIOS (which may control basic hardware or software operations (such as interaction with peripheral components or devices)).

[0150] The code 1235 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1235 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some examples, the code 1235 may not be directly executable by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0151] Processor 1240 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some examples, processor 1240 may be configured to operate a memory array using a memory controller. In some examples, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks to support CSI reporting via DRX operation).

[0152] The inter-site communication manager 1245 can manage communications with other base stations 105 and can include a controller or scheduler for controlling communications of UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 can coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 can provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0153] Fig.13 1 is a flowchart illustrating a process 1300 for supporting CSI reporting through DRX operation according to aspects of the present disclosure. The operations of process 1300 may be implemented by UE 115 or components thereof as described herein. For example, the operations of process 1300 may be implemented by reference to Figure 5-8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0154] At 1305, the UE may monitor the wake-up signal monitoring opportunity during the inactivity duration of the DRX cycle period. The operations of 1305 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1305 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0155] At 1310, the UE may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. The operation of 1310 may be performed according to the process described herein. In some examples, various aspects of the operation of 1310 may be referred to as Figure 5-8 The wake-up component described is executed.

[0156] At 1315, based on the absence of a wake-up signal in the wake-up signal monitoring opportunity, the UE may send a CSI report on one or more resources in the first active duration of the DRX cycle period. The operations of 1315 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1315 may be described with reference to Figure 5-8 The reporting component described is executed.

[0157] At 1320, the UE may receive control information for the UE in a second active duration of the DRX cycle period based on the CSI report. The operations of 1320 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1320 may be described with reference to Figure 5-8 The control components described are used to perform.

[0158] Fig.14 A flow chart illustrating a process 1400 for supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The operations of process 1400 may be implemented by UE 115 or components thereof as described herein. For example, the operations of process 1400 may be implemented by reference to Figure 5-8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0159] At 1405, the UE may monitor the wake-up signal monitoring opportunity during the inactivity duration of the DRX cycle period. The operations of 1405 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1405 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0160] At 1410, the UE may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. The operation of 1410 may be performed according to the process described herein. In some examples, various aspects of the operation of 1410 may be referred to as Figure 5-8 The wake-up component described is executed.

[0161] At 1415, the UE may send an indication of a UE request to report a CSI report in the first activity duration of the DRX cycle period based on the absence of a wake-up signal in the wake-up signal monitoring opportunity. The operation of 1415 may be performed according to the procedures described herein. In some examples, aspects of the operation of 1415 may be described with reference to Figure 5-8 The indicator component described is implemented.

[0162] At 1420, the UE may send a CSI report on one or more resources in a first active duration of the DRX cycle period based on the indication. The operations of 1420 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1420 may be described with reference to Figure 5-8 The reporting component described is executed.

[0163] At 1425, the UE may receive control information for the UE in a second active duration of the DRX cycle period based on the CSI report. The operations of 1425 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1425 may be described with reference to Figure 5-8 The control components described are used to perform.

[0164] Fig.151 is a flowchart illustrating a process 1500 for supporting CSI reporting through DRX operation according to aspects of the present disclosure. The operations of process 1500 may be implemented by UE 115 or components thereof as described herein. For example, the operations of process 1500 may be implemented by reference to Figure 5-8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0165] At 1505, the UE may monitor the wake-up signal monitoring opportunity during the inactivity duration of the DRX cycle period. The operations of 1505 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1505 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0166] At 1510, the UE may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. The operation of 1510 may be performed according to the process described herein. In some examples, various aspects of the operation of 1510 may be referred to as Figure 5-8 The wake-up component described is executed.

[0167] At 1515, the UE may send an indication of a UE request to report a CSI report in the first active duration of the DRX cycle period based on the absence of a wake-up signal in the wake-up signal monitoring opportunity. The operation of 1515 may be performed according to the procedures described herein. In some examples, aspects of the operation of 1515 may be described with reference to Figure 5-8 The indicator component described is implemented.

[0168] At 1520, the UE may start a CSI reporting timer based on sending an indication that the UE requests to report a CSI report. The operations of 1520 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1520 may be described with reference to Figure 5-8 The described timer component is implemented.

[0169] At 1525, the UE may send a CSI report on one or more resources in a first active duration of the DRX cycle period based on the expiration of the CSI reporting timer. The operations of 1525 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1525 may be described with reference to Figure 5-8 The reporting component described is executed.

[0170] At 1530, the UE may receive control information for the UE in a second active duration of the DRX cycle period based on the CSI report. The operations of 1530 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1530 may be described with reference to Figure 5-8 The control components described are used to perform.

[0171] Fig.16 A flow chart illustrating a process 1600 for supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The operations of process 1600 may be performed by UE 115 or components thereof as described herein. For example, the operations of process 1600 may be performed by reference to Figure 5-8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0172] At 1605, the UE may monitor the wake-up signal monitoring opportunity during the inactivity duration of the DRX cycle period. The operations of 1605 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1605 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0173] At 1610, the UE may determine that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based on monitoring the wake-up signal monitoring opportunity. The operation of 1610 may be performed according to the procedures described herein. In some examples, various aspects of the operation of 1610 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0174] At 1615, the UE may send a CSI report on one or more resources in a first active duration of the DRX cycle period based on the absence of a wake-up signal in the wake-up signal monitoring opportunity. The operations of 1615 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1615 may be described with reference to Figure 5-8 The reporting component described is executed.

[0175] At 1620, the UE may start a downlink channel timer based on sending a CSI report on one or more resources. The operations of 1620 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1620 may be described with reference to Figure 5-8 The described timer component is implemented.

[0176] At 1625, the UE may monitor control information for the UE on the downlink control channel in the second active duration of the DRX cycle period based on the downlink channel timer. The operations of 1625 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1625 may be described with reference to Figure 5-8 The wake-up component described is executed.

[0177] At 1630, the UE may receive control information for the UE in a second active duration of the DRX cycle period based on the CSI report. The operations of 1630 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1630 may be described with reference to Figure 5-8 The control components described are used to perform.

[0178] Fig.17 A flow chart illustrating a process 1700 for supporting CSI reporting through DRX operation according to aspects of the present disclosure is shown. The operations of process 1700 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of process 1700 may be implemented by reference to Figure 9-12 The base station communication manager described above may be used to perform the functions described below. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0179] At 1705, the base station may receive a CSI report on one or more resources in a first active duration of a DRX cycle period. The operations of 1705 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1705 may be described with reference to Figure 9-12 The reporting component described is executed.

[0180] At 1710, the base station may send control information for the UE on a downlink control channel in a second active duration of the DRX cycle period based on the CSI report. The operations of 1710 may be performed according to the procedures described herein. In some examples, aspects of the operations of 1710 may be described with reference to Figure 9-12 The control components described are used to perform.

[0181] The processes described herein illustrate possible implementations and the operations and steps may be rearranged or otherwise modified, and other implementations are possible. In addition, aspects from two or more processes may be combined.

[0182] Summary of various aspects

[0183] The following summarizes various aspects of the disclosure:

[0184] Aspect 1: A method for performing wireless communications at a UE, comprising: monitoring a wake-up signal monitoring opportunity during an inactive duration of a discontinuous reception cycle period; determining that there is no wake-up signal for the UE in the wake-up signal monitoring opportunity based at least in part on monitoring the wake-up signal monitoring opportunity; sending a channel state information report on one or more resources during a first active duration of the discontinuous reception cycle period based at least in part on the absence of a wake-up signal in the wake-up signal monitoring opportunity; and receiving control information for the UE during a second active duration of the discontinuous reception cycle period based at least in part on the channel state information report.

[0185] Aspect 2: The method according to aspect 1 further includes: sending an indication of the UE requesting to report a channel state information report in a first activity duration of a discontinuous reception cycle period based at least in part on the absence of a wake-up signal monitoring opportunity.

[0186] Aspect 3: The method according to Aspect 2 also includes: starting a channel state information report timer based at least in part on sending an indication of a UE requesting to report a channel state information report, wherein sending the channel state information report on one or more resources is based at least in part on the expiration of the channel state information report timer.

[0187] Aspect 4: The method according to aspect 3 also includes: receiving a timer configuration corresponding to the channel state information reporting timer, wherein starting the channel state information reporting timer is at least partially based on the timer configuration.

[0188] Aspect 5: The method according to any one of Aspects 2 to 4 further includes: receiving a message containing a configuration, which configuration indicates one or more resources of an uplink channel for sending an indication of a UE requesting to report a channel state information report, wherein sending an indication of a UE requesting to report a channel state information report includes sending an indication of a UE requesting to report a channel state information report on one or more resources of the uplink channel.

[0189] Aspect 6: The method according to aspect 5, wherein the configuration includes a radio resource control configuration.

[0190] Aspect 7: The method according to any one of aspects 5 to 6, wherein the uplink channel includes a physical uplink control channel.

[0191] Aspect 8: The method according to any one of aspects 5 to 7, wherein the one or more resources of the uplink channel for which the UE requests to report an indication of the channel state information report correspond to one or more scheduling request resources.

[0192] Aspect 9: The method according to any one of Aspects 1 to 8 further includes: receiving a message containing a channel state information report configuration, wherein sending the channel state information report on the one or more resources includes automatically sending the channel state information report on one or more resources based at least in part on the channel state information report configuration.

[0193] Aspect 10: A method according to Aspect 9, wherein automatically sending a channel state information report includes sending a channel state information report on one or more resources during an inactivity duration of a discontinuous reception cycle period independently of receiving a wake-up signal during a wake-up signal monitoring opportunity.

[0194] Aspect 11: The method according to any one of aspects 9 to 10, wherein the channel state information reporting configuration comprises a radio resource control configuration.

[0195] Aspect 12: The method according to any one of Aspects 1 to 11 further includes: determining that there is no wake-up signal for the UE in the wake-up signal monitoring period based at least in part on monitoring the wake-up signal monitoring period, wherein sending the channel state information report is at least in part based on the absence of the wake-up signal.

[0196] Aspect 13: The method according to any one of Aspects 1 to 12 further includes: determining whether to monitor control information for the UE in a downlink control channel during a second activity duration of a discontinuous reception cycle period based at least in part on the channel state information report, wherein receiving the control information is based at least in part on the determination.

[0197] Aspect 14: The method according to Aspect 13 further includes: monitoring control information for the UE in the downlink control channel during the second active duration of the discontinuous reception cycle period based at least in part on determining whether control information for the UE is monitored in the downlink control channel, wherein receiving the control information is at least in part based on monitoring the downlink control channel.

[0198] Aspect 15: The method according to aspect 14, wherein the downlink control channel comprises a physical downlink control channel.

[0199] Aspect 16: The method according to aspect 13 further includes: avoiding monitoring control information for the UE in a downlink control channel during a second activity duration of the discontinuous reception cycle period based at least in part on the determination.

[0200] Aspect 17: The method according to any one of Aspects 1 to 16 further includes: starting a downlink channel timer based at least in part on sending the channel state information report on the one or more resources; and monitoring control information for the UE in a downlink control channel during a second activation duration of a discontinuous reception cycle period based at least in part on the downlink channel timer.

[0201] Aspect 18: The method according to aspect 17 also includes: receiving a timer configuration corresponding to the downlink channel timer, wherein starting the downlink channel timer is at least partially based on the timer configuration.

[0202] Aspect 19: The method according to any one of Aspects 1 to 18 further includes: measuring one or more channel state information reference signals in a first activity duration of a discontinuous reception cycle period; determining channel state information based at least in part on the measurement, wherein sending a channel state information report includes sending the channel state information in a channel state information report based at least in part on the channel state information satisfying a threshold.

[0203] Aspect 20: The method according to aspect 19, wherein the channel state information includes a channel quality indicator.

[0204] Aspect 21: The method according to any one of Aspects 19 to 20, wherein the channel state information includes a first layer reference signal received power.

[0205] Aspect 22: The method according to any one of Aspects 1 to 21, wherein the one or more resources include one or more persistent scheduling resources.

[0206] Aspect 23: The method according to any one of Aspects 1 to 22, wherein the one or more resources include one or more semi-persistent scheduling resources.

[0207] Aspect 24: The method according to any one of aspects 1 to 23, wherein one or more of the first activity duration or the second activity duration of the discontinuous reception cycle period are continuous.

[0208] Aspect 25: The method according to any one of aspects 1 to 24, wherein one or more of the first activity duration or the second activity duration of the discontinuous reception cycle period is discontinuous.

[0209] Aspect 26: The method according to any one of aspects 1 to 25, wherein the first activity duration and the second activity duration occur in the same activity duration of the discontinuous reception cycle period.

[0210] Aspect 27: The method according to any one of Aspects 1 to 26 further includes: receiving a message containing a configuration associated with a channel state information report count, wherein the configuration includes a radio resource control configuration; and determining a channel state information report count based at least in part on the radio resource control configuration, wherein sending a channel state information report on one or more resources is based at least in part on the channel state information report count.

[0211] Aspect 28: The method according to Aspect 27, further comprising: avoiding sending subsequent channel state information reports in a third activity duration of the discontinuous reception cycle period based at least in part on the channel state information report count satisfying the threshold.

[0212] Aspect 29: A method for performing wireless communications at a base station, comprising: receiving a channel state information report on one or more resources during a first activity duration of a discontinuous reception cycle period; and sending control information for a UE on a downlink control channel during a second activity duration of the discontinuous reception cycle period based at least in part on the channel state information report.

[0213] Aspect 30: The method according to aspect 29 further comprises: monitoring the one or more resources, wherein receiving a channel state information report on the one or more resources in the first activity duration of the discontinuous reception cycle period is at least partially based on the monitoring.

[0214] Aspect 31: The method according to any one of Aspects 29 to 30 further includes: receiving an indication of a UE requesting a channel state information report during a first activity duration of a discontinuous reception cycle period, wherein receiving the channel state information report on one or more resources during the first activity duration of the discontinuous reception cycle period is at least partially based on the indication.

[0215] Aspect 32: The method according to Aspect 31 further includes: sending a message containing a configuration, wherein the configuration indicates one or more resources of an uplink channel for indicating that the UE requests to report a channel state information report, wherein receiving an indication that the UE requests to report a channel state information report includes receiving an indication that the UE requests to report a channel state information report on one or more resources of the uplink channel.

[0216] Aspect 33: The method according to aspect 32, wherein the configuration includes a radio resource control configuration.

[0217] Aspect 34: The method according to any one of Aspects 29 to 33 further includes: sending a timer configuration corresponding to a channel state information report timer.

[0218] Aspect 35: The method according to any one of Aspects 29 to 34 further includes: sending a timer configuration corresponding to a downlink channel timer.

[0219] Aspect 36: The method according to any one of Aspects 29 to 35 further includes: sending a message containing a channel state information report configuration, wherein, in the first activity duration of the discontinuous reception cycle period, receiving the channel state information report on one or more resources is at least partially based on the channel state information report configuration.

[0220] Aspect 37: The method according to Aspect 36, wherein the channel state information reporting configuration includes a radio resource control configuration.

[0221] Aspect 38: The method according to any one of Aspects 29 to 37 further includes: sending a wake-up signal in a pre-wake-up window of a subsequent discontinuous reception cycle period, the wake-up signal indicating a third activity duration of a subsequent discontinuous reception cycle period for the UE; and sending a downlink control channel for control information for the UE in the third activity duration of the subsequent discontinuous reception cycle period based at least in part on the wake-up signal.

[0222] Aspect 39: The method according to any one of Aspects 29 to 38 further includes: sending a message containing a configuration associated with a channel state information report count, wherein the configuration includes a radio resource control configuration; and receiving a channel state information report on one or more resources during a first activity duration of a discontinuous reception cycle period is at least partially based on the channel state information report count.

[0223] Aspect 40: The method according to any one of Aspects 29 to 39, wherein the one or more resources include one or more persistently scheduled resources.

[0224] Aspect 41: The method according to any one of aspects 29 to 40, wherein the one or more resources include one or more semi-persistently scheduled resources.

[0225] Aspect 42: A method according to any one of Aspects 29 to 41, wherein the downlink control channel comprises a physical downlink control channel.

[0226] Aspect 43: The method according to any one of aspects 29 to 42, wherein one or more of the first activity duration or the second activity duration of the discontinuous reception cycle period is continuous.

[0227] Aspect 44: The method according to any one of aspects 29 to 43, wherein one or more of the first activity duration or the second activity duration of the discontinuous reception cycle period is discontinuous.

[0228] Aspect 45: The method according to any one of aspects 29 to 44, wherein the first activity duration and the second activity duration occur in the same activity duration of the discontinuous reception cycle period.

[0229] Aspect 46: A device for performing wireless communications at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to enable the device to perform any one of the methods of Aspects 1 to 28.

[0230] Aspect 47: An apparatus for wireless communication at a UE, comprising at least one device for performing the method of any one of Aspects 1 to 28.

[0231] Aspect 48: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 28.

[0232] Aspect 49: A device for performing wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform any one of the methods described in Aspects 29 to 45.

[0233] Aspect 50: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of Aspects 29 to 45.

[0234] Aspect 51: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 29 to 45.

[0235] Although various aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in most descriptions, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0236] The information and signals described herein may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination of the foregoing.

[0237] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented with a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic or discrete hardware components, or any combination of the foregoing, designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0238] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored or transmitted as one or more instructions or codes on a computer-readable medium. Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or any combination of these. Features that implement the functions may also be physically located in different locations, including being distributed so that parts of the functions are implemented in different physical locations.

[0239] Computer-readable media include non-transitory computer storage media and communication media, and communication media include any media that helps to transfer a computer program from one place to another. Non-transitory storage media can be any available media that can be accessed by a general or special computer. As an example and not limitation, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage devices or can be used to carry or store instructions or data structure forms of desired program code devices and can be accessed by general or special computers or general or special processors. Any other non-transitory medium. In addition, any connection is properly referred to as a computer-readable medium. For example, if a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwaves are used to send software from a website, server or other remote source, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwaves are included in the definition of computer-readable media. Disk and disc, as used herein, includes CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0240] As used herein, including in the claims, "or" used with a list of items (e.g., a list of items beginning with a phrase such as "at least one" or "one or more") means an inclusive list, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (in other words, A and B and C). In addition, the phrase "based on" as used herein should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on" as used herein should be interpreted in the same manner as the phrase "based at least in part on".

[0241] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes the similar components. If only the first reference label is used in the specification, the description applies to any similar component having the same first reference label, regardless of the second or other subsequent reference labels.

[0242] The description set forth herein describes example configurations in conjunction with the accompanying drawings and does not represent all examples that may be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "superior to other examples." The detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0243] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be clear to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A network entity, comprising: A processing system comprising a processor circuit and a memory circuit storing code, the processing system being configured to cause the network entity to: receiving an indication of a user equipment (UE) requesting reporting of channel state information in an active duration of a discontinuous reception cycle period, the indication being associated with an absence of a wake-up signal for the UE in a previous wake-up signal monitoring opportunity for the UE, the previous wake-up signal monitoring opportunity being in an inactive duration of the discontinuous reception cycle period; and During the active duration of the discontinuous reception cycle period, a channel state information report including channel state information associated with measurement of one or more reference signals is received, wherein the channel state information report is received in association with receiving an indication that the UE requests reporting of channel state information, although the wake-up signal for the UE was not present in the previous wake-up signal monitoring opportunity.

2. The network entity according to claim 1, wherein: The processing system is also configured to cause the network entity to perform a beam management operation with the UE in association with receiving the channel state information report.

3. The network entity according to claim 1, wherein: The processing system is further configured to cause the network entity to send a timer configuration corresponding to a channel state information reporting timer, wherein the processing system is configured to cause the network entity to receive the channel state information report based at least in part on the channel state information reporting timer.

4. The network entity according to claim 1, wherein: The processing system is further configured to cause the network entity to send a message including a configuration indicating one or more resources of an uplink channel for the UE to use to send the indication that the UE requests reporting of the channel state information.

5. The network entity according to claim 4, wherein: The configuration comprises a radio resource control configuration.

6. The network entity according to claim 4, wherein: The uplink channel comprises a physical uplink control channel.

7. The network entity according to claim 4, wherein: The one or more resources of the uplink channel used by the UE to send the indication that the UE requests to report the channel state information correspond to one or more scheduling request resources.

8. The network entity according to claim 1, wherein: The processing system is further configured to cause the network entity to send a message including a channel state information report configuration for the UE to autonomously send the channel state information report.

9. The network entity according to claim 8, wherein: The channel state information reporting configuration includes a radio resource control configuration.

10. The network entity according to claim 1, wherein: The processing system is also configured to cause the network entity to send a timer configuration corresponding to a downlink channel timer for the UE to use for monitoring control information for the UE in a downlink control channel.

11. The network entity according to claim 10, wherein: The processing system is also configured to cause the network entity to send the downlink control channel including the control information based at least in part on the channel state information report and in association with the timer configuration.

12. The network entity according to claim 1, wherein: The processing system is also configured to cause the network entity to send one or more channel state information reference signals during an active duration of the discontinuous reception cycle period, wherein the processing system is configured to cause the network entity to receive the channel state information report including the channel state information based at least in part on the one or more channel state information reference signals.

13. The network entity according to claim 12, wherein: The channel state information includes a channel quality indicator.

14. The network entity according to claim 12, wherein: The channel state information includes first layer reference signal received power.

15. The network entity according to claim 1, wherein: The processing system is further configured to cause the network entity to receive the channel state information report on one or more persistently scheduled resources.

16. The network entity according to claim 1, wherein: The processing system is further configured to cause the network entity to receive the channel state information report on one or more semi-persistently scheduled resources.

17. A method for wireless communication at a network entity, comprising: receiving an indication of a user equipment (UE) requesting reporting of channel state information in an active duration of a discontinuous reception cycle period, the indication being associated with an absence of a wake-up signal for the UE in a previous wake-up signal monitoring opportunity for the UE, the previous wake-up signal monitoring opportunity being in an inactive duration of the discontinuous reception cycle period; as well as During the active duration of the discontinuous reception cycle period, a channel state information report including channel state information associated with measurement of one or more reference signals is received, wherein the channel state information report is received in association with receiving an indication that the UE requests reporting of channel state information, although the wake-up signal for the UE was not present in the previous wake-up signal monitoring opportunity.

18. The method of claim 17, further comprising performing a beam management operation with the UE in association with receiving the channel state information report.

19. The method of claim 17, further comprising sending a timer configuration corresponding to a channel state information reporting timer, wherein: Receiving the channel state information report is based at least in part on the channel state information report timer.

20. The method of claim 17, further comprising sending a message including a configuration indicating one or more resources of an uplink channel for the UE to use to send the indication that the UE requests reporting of the channel state information.

21. The method according to claim 20, wherein: The configuration comprises a radio resource control configuration.

22. The method according to claim 20, wherein: The uplink channel comprises a physical uplink control channel.

23. The method according to claim 20, wherein: The one or more resources of the uplink channel used by the UE to send the indication that the UE requests to report the channel state information correspond to one or more scheduling request resources.

24. The method of claim 17, further comprising sending a message including a channel state information report configuration for the UE to autonomously send the channel state information report.

25. The method of claim 17, wherein: The channel state information reporting configuration includes a radio resource control configuration.

26. The method of claim 17, further comprising sending a timer configuration corresponding to a downlink channel timer for the UE to use in monitoring a downlink control channel for control information for the UE.

27. The method of claim 26, further comprising sending the downlink control channel including the control information based at least in part on the channel state information report and in association with the timer configuration.

28. The method of claim 17, further comprising sending one or more channel state information reference signals during an active duration of the discontinuous reception cycle period, wherein: Receiving the channel state information report including the channel state information is based at least in part on the one or more channel state information reference signals.

29. The method according to claim 28, wherein: The channel state information includes a channel quality indicator.

30. The method of claim 28, wherein: The channel state information includes first layer reference signal received power.

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