Monitoring periodic signals during non-uniform discontinuous reception cycles
By adjusting the DRX configuration and periodic signal parameters, the problem of signal monitoring delay during non-uniform DRX cycle is solved, and the alignment of the signal and DRX cycle is achieved, which improves the reliability and efficiency of signal reception.
Patent Information
- Application Number
- CN202380054494.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-27
- Filing Date
- 2023-07-17
- Publication Date
- 2025-03-07
AI Technical Summary
During non-uniform discontinuous reception (DRX) cycles, it is difficult for the prior art to effectively monitor periodic signals, resulting in possible signals falling outside of activity time, causing problems of delay and performance degradation.
Adjust the parameters of the DRX configuration and periodic signal through network entities and user equipment (UE) to adapt to the non-uniform DRX configuration, ensuring that the periodic signals are aligned with the DRX cycle, including the use of dynamic indications to advance or delay the DRX cycle, and the configuration of two-stage DRX cycles.
It realizes effective monitoring of periodic signals during non-uniform DRX cycles, preventing signals from falling outside the active time, reducing delays and performance reductions, and improving the reliability and efficiency of signal reception.
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Figure CN119586316A_ABST
Abstract
Description
[0001] Cross-references
[0002] This patent application claims priority to U.S. patent application No. 17 / 875,318, filed by Sakhnini et al. on July 27, 2022, entitled “MONITORINGFOR PERIODIC SIGNALSDURING NON-UNIFORM DISCONTINUOUS RECEPTION CYCLES,” which is assigned to the assignee of this application and is expressly incorporated herein by reference. Technical Field
[0003] The following relates to wireless communications including monitoring of periodic signals during a non-uniform discontinuous reception (DRX) cycle. Background Art
[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, and the like. 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 employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). Summary of the invention
[0005] The described technology relates to improved methods, systems, devices, and apparatuses that support monitoring periodic signals during non-uniform discontinuous reception (DRX) cycles. For example, the described technology provides a network entity and a user equipment (UE) to change one or more parameters of one or more connected mode DRX (C-DRX) configurations, one or more periodic signals, or both to adapt to one or more non-uniform C-DRX configurations. In some examples, the network entity may send a control message (e.g., via radio resource control (RRC) signaling) indicating a non-uniform (e.g., semi-static, non-integer periodicity, or dynamic) C-DRX configuration to the UE. In some cases, the network entity may configure one or more periods of one or more periodic signals based on the non-uniform C-DRX configuration, or may send one or more dynamic indications based on the non-uniform C-DRX configuration to advance or delay one or more C-DRX cycles. In some examples, the network entity may send an indication of an implicit link between a C-DRX cycle and one or more periodic signals in a C-DRX configuration to the UE. In some cases, the network entity may include a second C-DRX configuration (e.g., in RRC signaling) configured based on one or more periodic signals, or may configure a two-stage C-DRX configuration. In some examples, the network entity may indicate to the UE based on one or more periodic signals to extend one or more C-DRX active times. In some cases, the UE may configure one or more C-DRX cycles or active times based on one or more periodic signals, a non-uniform C-DRX configuration, or one or more indications from the network entity. In some cases, the UE may send an indication that the UE will not measure periodic signals that fall outside the active time. Additionally or alternatively, the network entity may configure one or more periods and offsets of the periodic signal according to a continuous range of integers or according to rational numbers. In some examples, the network entity or the UE may implement an updated timing reference value.
[0006] A method for wireless communication at a UE is described. The method may include: receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; receiving a second control message identifying periodic resources to be used by the UE to monitor periodic signals, the periodic resources being at least outside the first active duration; and monitoring the periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources being outside the first active duration.
[0007] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; receive a second control message identifying periodic resources to be used by the UE to monitor periodic signals, the periodic resources being at least outside the first active duration; and monitor the periodic signals during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources being outside the first active duration.
[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include: a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; a second control message identifying periodic resources to be used by the UE to monitor periodic signals, the periodic resources being at least outside the first active duration; and a component for monitoring the periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources outside the first active duration.
[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; receive a second control message identifying periodic resources to be used by the UE to monitor periodic signals, the periodic resources being at least outside the first active duration; and monitor the periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources being outside the first active duration.
[0010] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication that the UE is to update a periodic resource of a periodic signal to overlap with the first activity duration.
[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving one or more indications for updating periodic resources based on a period derived from a fraction of two integers, wherein the first control message may be received based on the period.
[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving an indication for updating periodic resources, wherein the indication may be received via a first control message, and the first control message includes a wake-up signal (WUS), a downlink control information (DCI) message, a medium access control-control element (MAC-CE), or any combination thereof.
[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: receiving an indication of a relationship between a first DRX cycle and a periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first DRX cycle, a first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof; and updating the first activity duration, updating the periodic resource, or both based on the relationship between the first DRX cycle and the periodic resource.
[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication of an update to a first activity duration, wherein updating the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: receiving an indication to monitor during a first activity duration and a third activity duration, wherein the first DRX cycle may be a two-stage DRX cycle having the first activity duration and the third activity duration; and updating the first activity duration to include the first activity duration and the third activity duration.
[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: avoiding monitoring the periodic signal during the second activity duration based on the periodic resource outside the second activity duration; and sending an indication to a network entity that the UE can avoid monitoring the periodic signal.
[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the periodic resources to be used by the UE to monitor the periodic signal include one or more of a channel state information-reference signal (CSI-RS) resource, a search space set, a semi-persistent scheduling (SPS) resource, a configuration grant (CG) resource, or a sounding reference signal (SRS) resource.
[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a system frame number (SFN), or any combination thereof.
[0019] A method for wireless communication at a network entity is described. The method may include: outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; outputting a second control message scheduling periodic resources to be used by one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first active duration; and outputting a periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources outside the first active duration.
[0020] An apparatus for wireless communication at a network entity is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: output a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle different from the first DRX cycle to be used by one or more UEs, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; output a second control message scheduling periodic resources to be used by one or more UEs to monitor periodic signals, the periodic resources being at least outside the first active duration; and output a periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources outside the first active duration.
[0021] Another apparatus for wireless communication at a network entity is described. The apparatus may include: a first control message identifying a first DRX cycle to be used by one or more user equipment (UE) and a second DRX cycle to be used by the one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; a second control message scheduling periodic resources to be used by the one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first active duration; and a periodic signal output during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources outside the first active duration.
[0022] A non-transitory computer-readable medium storing code for wireless communication at a network entity is described. The code may include instructions executable by a processor to: output a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle different from the first DRX cycle to be used by one or more UEs, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration; output a second control message scheduling periodic resources to be used by one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first active duration; and output a periodic signal during the first active duration based on updating the first active duration, updating the periodic resources, or both based on the periodic resources outside the first active duration.
[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, updating periodic resources may include operations, features, components, or instructions for outputting a third control message that schedules additional periodic resources for at least one of one or more UEs, wherein the additional periodic resources may be different from the periodic resources.
[0024] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for outputting an indication that at least one of the one or more UEs is to update a periodic resource of a periodic signal to overlap with the first activity duration.
[0025] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: outputting one or more indications for updating periodic resources based on a period derived from a fraction of two integers, wherein the first control message may be output based on the period.
[0026] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: outputting an indication for updating periodic resources, wherein the indication may be output via a first control message, and the first control message includes a WUS, a DCI message, a MAC-CE, or any combination thereof.
[0027] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for outputting an indication of a relationship between a first DRX cycle and a periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first DRX cycle, a first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof.
[0028] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for outputting an indication of an update to the first activity duration, wherein the update to the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
[0029] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for outputting an indication of monitoring during a first activity duration and a third activity duration, wherein the first DRX cycle may be a two-stage DRX cycle having a first activity duration and a third activity duration.
[0030] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for obtaining an indication that at least one of the one or more UEs can refrain from monitoring a periodic signal.
[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, periodic resources to be used by one or more UEs to monitor periodic signals include one or more of CSI-RS resources, search space sets, SPS resources, CG resources, or SRS resources.
[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a SFN, or any combination thereof. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1An example of a wireless communication system that supports monitoring of periodic signals during a non-uniform discontinuous reception (DRX) cycle in accordance with one or more aspects of the present disclosure is illustrated.
[0034] Figure 2 An example of a wireless communication system supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated.
[0035] Figure 3A , Figure 3B and Figure 3C An example of a signaling diagram that supports monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated.
[0036] Figure 4 An example of a signaling diagram that supports monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated.
[0037] Figure 5 An example of a process flow that supports monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated.
[0038] Figure 6 and Figure 7 A block diagram of an apparatus supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown.
[0039] Figure 8 A block diagram of a communication manager that supports monitoring of periodic signals during a non-uniform DRX cycle is shown in accordance with one or more aspects of the present disclosure.
[0040] Fig. 9 A diagram of a system including a device that supports monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is shown.
[0041] Fig.10 and Fig.11 A block diagram of an apparatus supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown.
[0042] Fig.12 A block diagram of a communication manager that supports monitoring of periodic signals during a non-uniform DRX cycle is shown in accordance with one or more aspects of the present disclosure.
[0043] Fig.13 A diagram of a system including a device that supports monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is shown.
[0044] Figures 14 to 17A flow chart illustrating a method of supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated. DETAILED DESCRIPTION
[0045] Some wireless communication systems, such as extended reality (XR) systems, may have transmissions between user equipment (UE) and network entities that follow a uniform or periodic pattern. For example, XR applications may have service bursts with a uniform or periodic pattern, where XR applications may include cloud gaming applications, virtual reality (VR) split rendering applications, augmented reality (AR) split computing applications, and the like. Jitter and speed mismatch in XR service bursts may cause various delays due to packet delay budget (PDB) violations or excessive power consumption in XR communications. In some cases, a network entity may configure a non-uniform discontinuous reception (DRX) cycle for the UE, including a non-uniform connected mode DRX (C-DRX) cycle (e.g., semi-statically or dynamically) to monitor XR service bursts, where the non-uniform C-DRX cycle may have a varying activity duration. Variations in activity duration may reduce jitter delays introduced in XR communications due to XR service arrival delays caused by processing, interference, or other factors, or delays caused by speed mismatches introduced due to periodic differences between XR services and C-DRX cycles. However, using a non-uniform C-DRX cycle or non-integer period may cause one or more periodic signals or messages (e.g., search space sets, channel state information reference signal (CSI-RS), etc.) to fall outside the C-DRX active time, which may cause further delays.
[0046] This document describes a technique for implementing monitoring of periodic signals during a non-uniform C-DRX cycle. For example, a network entity may receive one or more periodic transmissions based on one or more non-uniform C-DRX cycles. For example, a network entity may implicitly link one or more periodic signals to one or more non-uniform C-DRX cycles. Additionally or alternatively, a network entity may configure one or more periodic messages or signals based on a semi-static configuration or a non-integer period (e.g., a fraction of two integers). The network entity may also send a dynamic indication based on a periodic message or signal to edit one or more C-DRX cycles, may send multiple C-DRX configurations, or may extend the C-DRX configuration accordingly. In some cases, a network entity may use a two-stage C-DRX cycle configuration. In some examples, in addition to or as an alternative to sending one or more shared periodic signals, a network entity may perform the process of sharing signals described herein, wherein the network entity may indicate a change in a periodic signal to one or more UEs. In some cases, a UE may indicate to a network entity a mode of skipping messages that fall outside one or more active times, and the network entity may avoid configuration based on the indication, or transmit one or more periodic messages or signals based on the indication. In some cases, the C-DRX configuration may include a set of predetermined integers or fractions of one or more periods, or a new timing reference value of a system frame number.
[0047] Aspects of the present disclosure are first described in the context of a wireless communication system. Additionally, aspects of the present disclosure are described in the context of signaling diagrams and process flows. Aspects of the present disclosure are further illustrated by apparatus diagrams, system diagrams, and flow diagrams related to monitoring periodic signals during a non-uniform DRX cycle, and aspects of the present disclosure are described with reference to these diagrams.
[0048] Figure 1 An example of a wireless communication system 100 that supports monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0049] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some examples, the network entities 105 and the UE 115 may wirelessly communicate via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UE 115 and the network entity 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the network entity 105 and the UE 115 may support signal communication according to one or more radio access technologies (RATs).
[0050] 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 stationary and mobile at different times. The UEs 115 may be devices in different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communication with various types of devices such as Figure 1 Other UEs 115 or network entities 105 are shown communicating.
[0051] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node may be a UE 115. As another example, the node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In other aspects of this example, the first node, the second node, and the third node may be different relative to these examples. Similarly, references to UE 115, network entity 105, apparatus, device, computing system, etc. may include disclosure of UE 115, network entity 105, apparatus, device, computing system, etc. as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that the first node is configured to receive information from a second node.
[0052] In some examples, the network entities 105 may communicate with the core network 130, or with each other, or both. For example, the network entities 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, the network entities 105 may communicate with each other via the backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols) directly (e.g., directly between the network entities 105) or indirectly (e.g., via the core network 130). In some examples, the network entities 105 may communicate with each other via the midhaul communication links 162 (e.g., according to the midhaul interface protocol) or the fronthaul communication links 168 (e.g., according to the fronthaul interface protocol) or any combination thereof. The backhaul communication links 120, the midhaul communication links 162, or the fronthaul communication links 168 may be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), etc. or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .
[0053] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or a gigabit NodeB (any of which may be referred to as a gNB), a 5G NB, a next generation eNB (ng-eNB), a home NodeB, a home eNodeB, or other suitable terms). In some examples, the network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, stand-alone) base station architecture, which may be configured to utilize a protocol stack physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as a base station 140).
[0054] In some examples, the network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that may be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 may include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the decomposed RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).
[0055] The functional split between CU 160, DU 165, and RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a functional split of a protocol stack may be employed between CU 160 and DU 165 such that CU 160 may support one or more layers of a protocol stack and DU 165 may support one or more different layers of a protocol stack. In some examples, CU 160 may host higher protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g., radio resource control (RRC), service data adaptation protocol (SDAP), packet data convergence protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DUs 165 and RUs 170, such that the DUs 165 may support one or more layers of the protocol stack, and the RUs 170 may support one or more different layers of the protocol stack. The DUs 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between CU 160 and DU 165 or between DU 165 and RU 170 may be within the protocol layer (e.g., some functions of the protocol layer may be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by different ones of CU 160, DU 165, or RU 170). CU 160 may be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 may be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and DU 165 may be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some examples, midhaul communication link 162 or fronthaul communication link 168 may be implemented based on an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 105 that communicate via such communication links.
[0056] In some wireless communication systems (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as donor entities or IAB donors. One or more DUs 165 or one or more RUs 170 may be controlled in part by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a coupled IAB donor's DU 165. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.
[0057] For example, an access network (AN) or RAN may include an access node (e.g., an IAB donor), communications between an IAB node 104, and one or more UEs 115. The IAB donor may facilitate connectivity between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol). Additionally or alternatively, CU 160 may communicate with the core network via an interface (which may be an example of a portion of a backhaul link) and may communicate with other CUs 160 (e.g., CU 160 associated with an alternative IAB donor) via an Xn-C interface (which may be an example of a portion of a backhaul link).
[0058] An IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UE 115, wireless self-backhaul capabilities, etc.). DU 165 may act as a distributed scheduling node toward a child node associated with the IAB node 104, and an IAB-MT may act as a scheduled node toward a parent node associated with the IAB node 104. That is, an IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., an IAB donor may relay transmissions to a UE through one or more other IAB nodes 104). Additionally or alternatively, depending on the relay chain or configuration of the AN, the IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104. Therefore, the IAB-MT entity of the IAB node 104 may provide a Uu interface for the child IAB node 104 to receive signaling from the parent IAB node 104, and a DU interface (e.g., DU 165) may provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or the UE 115.
[0059] For example, the IAB node 104 may be referred to as a parent node supporting child IAB node communications or as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 having a wired or wireless connection (e.g., backhaul communication link 120) to the core network 130, and may act as a parent node of the IAB node 104. For example, the DU 165 of the IAB donor may relay transmissions to the UE 115 through the IAB node 104, or may directly signal the transmissions to the UE 115, or both. The CU 160 of the IAB donor may signal the IAB node 104 of the communication link establishment via the F1 interface, and the IAB node 104 may schedule transmissions (e.g., transmissions relayed from the IAB donor to the UE 115) via the DU 165. That is, data may be relayed to and from the IAB nodes 104 via signaling via the NR Uu interface of the MT to the IAB node 104. Communications with the IAB node 104 may be scheduled by the DU 165 of the IAB donor, and communications with the IAB node 104 may be scheduled by the DU 165 of the IAB node 104 .
[0060] Where the techniques described herein are applied to the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support monitoring of periodic signals during a non-uniform DRX cycle as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).
[0061] 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 term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. 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 may 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, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0062] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 shown.
[0063] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a collection of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of an RF spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between these devices and any part (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send", "receive", or "communicate" when referring to the network entity 105 may refer to any part of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).
[0064] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling that coordinates the operation of 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 RF Channel Number (EARFCN)) and may be identified according to a channel raster for discovery by UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.
[0065] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communications or uplink communications (e.g., in FDD mode), or may be configured to carry downlink communications and uplink communications (e.g., in TDD mode).
[0066] A carrier may be associated with a particular bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers for a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). A device of the wireless communication system 100 (e.g., a network entity 105, a UE 115, or both) may have a hardware configuration that supports communications using a particular carrier bandwidth, or may be capable of being configured to support communications using one of the carrier bandwidths in the set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., a subband, a BWP) or all of the carrier bandwidth.
[0067] The signal waveform transmitted via the carrier may include 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 employing MCM techniques, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the subcarrier spacing may be inversely related. The amount 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), so that a relatively higher amount of resource elements (e.g., in the transmission duration) and a relatively higher order of the modulation scheme may correspond to a relatively higher communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.
[0068] One or more parameter sets for a carrier may be supported, and the parameter sets may include subcarrier spacing (Δf) and cyclic prefixes. 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 of a UE 115 may be constrained to one or more active BWPs.
[0069] The time interval for the network entity 105 or the UE 115 may be expressed in multiples of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The 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).
[0070] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a certain number of 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 a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended in front of each symbol period). In some wireless communication systems 100, the time slots may be further divided into micro-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0071] 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 transmit time interval (TTI). In some examples, the TTI duration (e.g., the amount of symbol periods 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)).
[0072] Physical channels may be multiplexed using carriers for communication according to various techniques. Physical control channels and physical data channels may be multiplexed via downlink carriers for signaling, 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 a set of symbol periods and may extend across a system bandwidth of a carrier or a subset of that system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs in UE115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to a plurality of UEs 115 , and a UE-specific search space set for transmitting control information to a specific UE 115 .
[0073] The network entity 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 the network entity 105 (e.g., using a carrier), and may be associated with an identifier used to distinguish adjacent cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other cell identifier). In some examples, a cell may also refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) on which the logical communication entity operates. Depending on various factors such as the capabilities of the network entity 105, such cells may range from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell may be or may include a building, a subset of a building, or an external space between or overlapping coverage areas 110, and the like.
[0074] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. As compared to a macro cell, a small cell may be associated with a lower power network entity 105 (e.g., a lower power base station 140), and the small cell may operate using the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 that has a service subscription with 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 network entity 105 may support one or more cells, and may also use one or more component carriers to support communications via one or more cells.
[0075] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.
[0076] In some examples, the network entities 105 (e.g., base stations 140, RUs 170) may be mobile and thus provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for respective coverage areas 110 using the same or different radio access technologies.
[0077] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the network entities 105 (e.g., base stations 140) may have similar frame timing, and transmissions from different network entities 105 may be approximately aligned in time. For asynchronous operation, the network entities 105 may have different frame timing, and in some examples, transmissions from different network entities 105 may not be aligned in time. The techniques described herein may be used for either synchronous operation or asynchronous operation.
[0078] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may allow 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 with a network entity 105 (e.g., base station 140) without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.
[0079] Some UEs 115 may be configured to employ 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 transmit and receive concurrently). In some examples, half-duplex communication may be performed with a reduced peak rate. Other energy-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating using 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.
[0080] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private communication or group communication, and may be supported by one or more services (such as push-to-talk, video, or data). Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0081] In some examples, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group that are performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication configured by the network entity 105 (e.g., scheduled by the network entity). In some examples, one or more UEs 115 in such a group may be outside the coverage area 110 of the network entity 105, or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, a group of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, in which each UE 115 transmits to each of the other UEs 115 in the group. In some examples, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.
[0082] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units) using vehicle-to-network (V2N) communication, or communicate with the network via one or more network nodes (e.g., network entity 105, base station 140, RU 170), or both.
[0083] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, 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 (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a network entity 105 (e.g., a base station 140) associated with the core network 130. User IP packets may be transferred via user plane entities, which may provide IP address allocation and other functions. The user plane entity may be connected to IP services 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0084] The wireless communication system 100 may operate using one or more frequency bands that may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, 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 about one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves may be sufficient to penetrate structures so that macro cells provide services to UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than communications using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.
[0085] The wireless communication system 100 may also operate in an ultra-high frequency (SHF) region (also known as a centimeter band) that may be in the range of 3 GHz to 30 GHz or an extremely high frequency (EHF) region (also known as a millimeter band) that uses a spectrum (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between a UE 115 and a network entity 105 (e.g., a base station 140, a RU 170), and the EHF antenna of the corresponding device may be smaller and closer than the UHF antenna. In some examples, such technology may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency regions, and the use of frequency bands specified across these frequency regions may vary by country or regulatory agency.
[0086] The wireless communication system 100 may utilize licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 may employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology using unlicensed bands such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating using unlicensed RF spectrum bands, devices such as network entities 105 and UEs 115 may employ carrier sensing for conflict detection and avoidance. In some examples, operations using unlicensed bands may be based on carrier aggregation configuration (e.g., LAA) in conjunction with component carriers operating using licensed bands. Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and the like.
[0087] The network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the network entity 105 or UE 115 may be located in one or more antenna arrays or antenna panels, which 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 assembly such as an antenna tower. In some examples, antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a collection of multiple rows and columns of antenna ports that the network entity 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals sent via the antenna ports.
[0088] The network entity 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. The multiple signals may be sent, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information 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 technologies include: 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.
[0089] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals conveyed via antenna elements of an antenna array so that some signals propagating along a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may 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 of these antenna elements may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other orientation).
[0090] The network entity 105 or UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the network entity 105 along different directions. For example, the network entity 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device (such as network entity 105), or by a receiving device (such as UE 115)) beam directions for later transmission or reception by the network entity 105.
[0091] Some signals, such as data signals associated with a particular receiving device, may be sent by a transmitting device (e.g., transmitting network entity 105, transmitting UE 115) along a single beam direction (e.g., a direction associated with a receiving device (such as receiving network entity 105 or receiving UE 115)). In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals sent along one or more beam directions. For example, UE 115 may receive one or more of the signals sent by network entity 105 along different directions, and may report to network entity 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.
[0092] In some examples, transmission by a device (e.g., by network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from network entity 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 set of beams across a system bandwidth or one or more subbands. Network entity 105 may send a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may or may not be precoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent along one or more directions by a network entity 105 (e.g., base station 140, RU 170), UE 115 may use similar techniques to send signals multiple times along different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115), or to send signals along a single direction (e.g., to send data to a receiving device).
[0093] A receiving device (e.g., UE 115) may perform receiving operations according to multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a receiving device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple receiving directions by: receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receiving beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receiving beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0094] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly to communicate via logical channels. The MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also implement error detection techniques, error correction techniques, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer may provide the establishment, configuration, and maintenance of an RRC connection that supports radio bearers of user plane data between the UE 115 and the network entity 105 or the core network 130. The PHY layer may map transport channels to physical channels.
[0095] UE 115 and network entity 105 may support retransmission of data to increase the likelihood of data being successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data via a communication link (e.g., communication link 125, D2D communication link 135). HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific time slot for data received via a previous symbol in the time slot. In some other examples, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.
[0096] In some examples, the wireless communication system 100 may support XR devices. For example, the UE 115 may be an XR device, which may include a virtual reality (VR) device, an augmented reality device (AR), or a mixed reality (MR) device, wherein the MR device may include a combination of aspects of both VR devices and AR devices. In some cases, the XR transmission may have low latency and may include delay-sensitive processes at the UE 115 (e.g., to improve the quality of user experience). The XR transmission may also include high data throughput (e.g., high data rate) that may consume a lot of power. For example, the network entity 105 may send large data packets, such as video frames, to the UE 115. In addition, in some cases, the UE 115 may be configured with a DRX configuration, such as a C-DRX configuration, in which the UE switches to a power-saving sleep state between active times, in which the UE monitors communications from the network entity 105 (e.g., one or more transmissions of a physical downlink control channel (PDCCH) may be monitored). In some examples, the active time may include an on-duration, which may be extended by an inactive timer, or both.
[0097] In some examples, XR communications may include one or more service bursts. For example, the network entity 105 may send one or more data packets in an XR service burst at the beginning of one or more C-DRX cycles in periodic transmission. In some examples, each XR service burst may include changes in the number and size of packets per burst. For example, an XR service burst at the beginning of the first C-DRX cycle may have three data packets of a shorter length, while an XR service burst at the beginning of the second C-DRX cycle after the first cycle may have two data packets of a longer length. In some cases, XR services may be sent according to non-integer or integer periods. For example, the network entity 105 may send XR data at 1 / 60 frames per second (fps), 16.67ms period, or at 1 / 120fps, 8.33ms period.
[0098] In some examples, jitter may be introduced into XR communications, resulting in variations in the arrival time of XR services. For example, an XR service burst that is expected to arrive at the start of a C-DRX cycle may arrive later (e.g., 4ms after the start of the C-DRX cycle). Additionally or alternatively, jitter may cause an XR service burst to arrive before the start of the C-DRX cycle and within the previous C-DRX cycle (e.g., 4ms before the start of the second C-DRX cycle). In some examples, jitter may be caused by processing, interference, delays, and other factors at the network entity 105. In some cases, a regular or periodic pattern of XR services may have a periodicity that does not correspond to an integer value of a possible starting position of the C-DRX active time (e.g., the start time of the C-DRX on duration). For example, a C-DRX configuration may indicate an integer period (e.g., 16ms), while a period of an XR service may have a non-integer period (e.g., 16.66ms), resulting in a speed mismatch in which the UE 115 and the XR service will be out of sync at one or more times.
[0099] XR services may include one or more data streams. For example, the network entity 105 may send two data streams. In some examples, each data stream may have a different configuration. For example, each data stream may have a different period and other variation characteristics, and may be independent of each other. In some cases, a first data stream may carry video data, and a second data stream may carry audio data. As another example, for XR video data, a first data stream may carry video data for the left eye of the XR device, and a second data stream may carry video data for the right eye.
[0100] In some cases, XR communications may include a small packet delay budget (PDB). For example, if UE 115 loses data reception of one or more video frames after the amount of time defined by the PDB (e.g., due to processing delays, jitter, or speed mismatch), UE 115 may discard data for one or more video frames after the PDB. In some cases, network entity 105 may decide not to send data for one or more video frames after the time defined by the PDB. In some cases, violating the PDB may affect latency in communications, or may adversely affect the user experience due to the loss of one or more video frames.
[0101] In some examples, fixed and periodic C-DRX parameters may have an adverse effect on XR communications. For example, jitter and speed mismatch may cause PDB violations, where due to jitter and speed mismatch, one or more packets arriving at UE 115 may arrive outside the C-DRX active time (e.g., including the C-DRX on duration), thereby causing UE 115 to lose reception of one or more packets. Additionally or alternatively, the C-DRX active time may not be long enough to accommodate the size of the traffic burst. In some cases, the network entity 105 may buffer one or more lost packets for transmission at the next C-DRX active time. However, UE 115 may wait until the next C-DRX active time to receive the packet, and therefore such delays may exceed the amount of time for the PDB. In some cases, fixed or periodic C-DRX parameters may cause unnecessary power waste, because the fixed C-DRX on duration or the inactive timer of the C-DRX active time may cause UE 115 to remain active for a relatively long duration (e.g., longer than required to receive one or more packets in an XR traffic burst).
[0102] In some cases, the non-uniform cycle duration may provide a C-DRX active time that is aligned with the cycle of the XR service. For example, one or more UEs 115 may be configured with a C-DRX cycle within a C-DRX time period such that different C-DRX cycles have a non-uniform cycle duration within the C-DRX time period (e.g., using enhanced C-DRX (eC-DRX)), wherein the non-uniform cycle duration may be semi-static or have a non-integer cycle (e.g., fractional). Thus, such non-uniform cycle duration may provide a C-DRX active time that is aligned with the cycle (e.g., semi-static or fractional) of the downlink service (e.g., XR downlink service) from the network entity 105 (e.g., base station) to the UE 115. Additionally or alternatively, the UE 115 or the network entity 105 may dynamically change one or more C-DRX parameters to match the XR service. For example, the network entity 105 may send one or more wake-up signals (WUS) or downlink control information (DCI) messages to dynamically update one or more C-DRX parameters (e.g., start of on-duration, inactivity timer, etc.). In some cases, the network entity 105 may update non-uniform C-DRX or dynamic C-DRX parameters to save power and avoid PDB violations at one or more wireless devices. However, the wireless device may miss one or more periodic messages or signals. For example, due to the implementation of non-uniform C-DRX cycles or dynamic updates, one or more periodic messages including search space sets, reference signals (e.g., CSI-RS), semi-persistent scheduling (SPS) or configuration scheduling (CG) messages and other messages may fall outside of C-DRX active times (e.g., on-duration and inactivity timers), thereby causing delays.
[0103] Techniques for aligning periodic signals or messages with non-uniform C-DRX cycles and dynamic messaging are described herein. For example, the wireless communication system 100 may support wireless devices monitoring periodic signals during non-uniform DRX cycles. In the case of non-uniform C-DRX configurations (e.g., semi-static, non-integer periodicity, or dynamic C-DRX), the UE 115, the network entity 105, or both may configure one or more periodic signals to align with the non-uniform C-DRX configuration, as described in reference to FIG. Figure 2 and Figure 3A Additionally or alternatively, the network entity 105 or the UE 115 may adjust one or more parameters of the C-DRX configuration to accommodate the reception of the periodic signal, as described in reference Figure 2 and Figure 3B In some cases, the network entity 105 or the UE 115 may adjust one or more periodic signals of the common signal or C-DRX parameters, as described in reference Figure 2 and Figure 3CIn some examples, UE 115 may be configured with a two-stage C-DRX configuration, and network entity 105 may configure the two-stage C-DRX configuration according to the reference Figure 4 The two-stage C-DRX configuration described above is used to send one or more periodic signals. In some examples, when the periodic signal falls outside of one or more C-DRX active times, the UE 115 can decide whether to measure the periodic signal and can send an indication of the decision to the network entity 105. In some examples, when eC-DRX is used, one or more periodic signals may include a period and offset from a continuous range of periods and offsets. Additionally or alternatively, the period of the periodic signal may include one or more non-integer or rational numbers, including fractions (e.g., 50 / 3ms). In some cases, the timing reference value can be updated to align the periodic signal with the non-uniform C-DRX cycle configuration.
[0104] Figure 2 An example of a wireless communication system 200 that supports monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100 or may be implemented by these aspects. The wireless communication system 200 may include a network entity 105-a having a coverage area 110-a and a UE-115-a, which may represent a reference Figure 1 1 and 115. In some examples, the network entity 105-a may use the downlink communication link 205 to send control information, data, or both to the UE 115-a. For example, the network entity 105-a may send the control information, data, or both as shown in FIG. Figure 1 Similarly, UE 115-a may use uplink communication link 210 to send control information, data, or both to network entity 105-a. For example, UE 115-a may send uplink traffic 220. In some cases, UE 115-a may represent a communication interface as described in reference to FIG. Figure 1 XR device described.
[0105] In some examples, the network entity 105-a may send periodic traffic 215 to the UE 115-a via the downlink communication link 205. In some cases, the periodic traffic 215 may include one or more reference signals, including a CSI-RS, a synchronization signal block (SSB), a tracking reference signal (TRS), a sounding reference signal (SRS), or one or more other reference signals for beam management or UE mobility (or other purposes). Additionally or alternatively, the periodic traffic 215 may include one or more search space sets, SPS messages, CG messages, or other periodic signals or messages.
[0106] In some examples, UE 115-a may be configured with one or more C-DRX cycles, as shown in signaling diagram 225 and as described in reference Figure 1 as described herein. For example, the UE 115-a may include a C-DRX cycle 230. At the start of the C-DRX cycle 230, the UE 115-a may enter an on-duration 235, wherein the UE 115-a may monitor for received data, including periodic services 215, XR services, or other data as described herein. In some examples, the UE 115-a may be configured with an inactive timer duration 240 corresponding to the activation of an inactive timer. For example, the UE 115-a may activate the inactive timer after receiving data (e.g., based on a configuration at the UE 115-a) or an indication from the network entity 105-a, wherein the UE 115-a may remain active during the inactive timer duration 240. In some cases, the duration including the on-duration 235 and the inactive timer duration 240 may constitute an active time 245 of the UE 115-a, wherein the UE 115-a may monitor and receive data during the active time 245. In some examples, the active time 245 may include the on-duration 235. For example, the UE 115-a may not receive data during the on-Duration 235 and may not activate the inactivity timer. Thus, the active time 245 may have the same length as the on-Duration 235. In some cases, the UE 115-a may include an off-Duration 250 immediately following the active time 245 for the remainder of the C-DRX cycle 230, wherein the sum of the active time 245 and the off-Duration 250 may fill the length of the C-DRX cycle 230. In some cases, the UE 115-a may be automatically configured (e.g., by the network entity 105-a) to enter the on-Duration 235 at the beginning of each C-DRX cycle 230.
[0107] In some cases, the UE 115-a may send a report corresponding to the received periodic traffic 215. For example, the UE 115-a may send a CSI-RS report after receiving the CSI-RS at the beginning of the C-DRX cycle 230 (e.g., in the uplink traffic 220 via the uplink communication link 210). In some cases, the UE 115-a may be configured to have a receive opportunity for receiving the periodic traffic 215 at the beginning of each C-DRX cycle, and may send a report based on the periodic traffic 215 received at the beginning of the C-DRX cycle 230, where the periodic traffic 215 may fall within the active time 245. In some cases, the network entity 105-a may send a WUS 255 to the UE 115-a to "wake up" the UE 115-a. For example, the UE 115-a may receive the WUS 255 and may transition to the on-duration 235 based on receiving the WUS 255. In some examples, UE 115-a may include inactivity timer duration 240 based on receiving WUS 255. In some cases, if UE 115-a is configured to receive WUS but does not receive WUS 255, UE 115-a may enter on-duration 235 and may not include inactivity timer duration 240. In some cases, UE 115-a may avoid sending a report of periodic traffic 215 if the periodic traffic 215 falls outside of active time 245 no later than the corresponding resource (e.g., CSI-RS resource).
[0108] In some examples, UE 115-a may be configured with a non-uniform C-DRX configuration (e.g., semi-static, non-integer periodicity, or dynamic C-DRX) to accommodate XR services, as described in reference Figure 1 as described. For example, the period of one or more C-DRX cycles of UE 115-a may be a fraction of two integers to match a non-integer C-DRX service period, while one or more CSI-RS signals sent in the periodic service 215 may include an integer period between 4 and 640 time slots. In some cases, the C-DRX cycle may be configured with a period of 1 / 60ms or 16.667ms, while the periodic CSI-RS signal may be sent with a period of 16ms. The mismatched periods may cause the CSI-RS signal to become out of synchronization with the non-integer C-DRX cycle over time and fall outside the active time 245 and be lost by UE 115-a. However, a non-uniform C-DRX configuration may cause one or more periodic signals from the periodic service 215 to fall outside the active time 245.
[0109] As another example, UE 115-a may be configured with a semi-static C-DRX configuration (e.g., eC-DRX) in which the cycle period follows a pattern of 16ms, 17ms, 17ms, 16ms, 17ms, and 17ms. The CSI-RS signal may have a period of 16ms and may be sent at the beginning of each C-DRX cycle according to the 16ms period. However, after the first 17ms period, the next C-DRX cycle 230 may have an offset 260 compared to the 16ms period of the CSI-RS signal. In such an example, the CSI-RS signal (e.g., periodic traffic 215) may be sent before the start of the next C-DRX cycle 230 and may therefore fall outside of the active time 245. In another example, the UE 115-a may be configured to start a C-DRX cycle 230 to accommodate XR traffic based on one or more dynamic indications, which may similarly cause the UE 115-a to miss the periodic traffic 215 if the UE 115-a enters the off-duration 250 before the periodic traffic 215 is received. Thus, semi-static, non-integer periodicity, and dynamic C-DRX may cause the UE 115-a to miss one or more periodic signals of the periodic traffic 215. This may result in measurement or reporting delays because the UE 115-a may wait until the next C-DRX cycle after the C-DRX cycle 230 based on missing the periodic traffic 215, which may also degrade performance.
[0110] In some examples, the wireless communication system 200 may support Figure 1 Techniques for monitoring periodic signals during a non-uniform DRX cycle are described. For example, in the case of a non-uniform C-DRX configuration (e.g., semi-static, non-integer periodicity, or dynamic C-DRX), the UE 115-a, the network entity 105-a, or both may adjust the periodic traffic 215 or the C-DRX configuration (e.g., the C-DRX cycle 230) to avoid delays and performance degradation. In some examples, the network entity 105-a may adjust the period of the periodic traffic 215 to fall within the active time 245, may use dynamic indications to advance or delay the active time 245 (e.g., the start time of the on-duration 235), or may include an implicit link between the periodic traffic 215 and the C-DRX configuration, as described in reference to Figure 3A Additionally or alternatively, UE 115-a may include multiple C-DRX configurations with different cycles, or may extend the duration and start time of active time 245, as described in further detail. Figure 3B In some cases, the network entity 105-a may employ one or more changes to accommodate multiple UEs, such as referring to Figure 3CIn some examples, UE 115-a may include one or more inner loop configurations and outer loop configurations, such as reference Figure 4 In some examples, the network entity 105-a may configure the UE 115-a to adapt one or more C-DRX cycles to the periodic traffic 215, or the UE 115-a may receive one or more indications from the network entity 105-a indicating changes to the periodic traffic 215, as described herein.
[0111] In some examples, when the periodic traffic 215 falls outside the active time 245, the UE 115-a may decide whether to measure the periodic traffic 215 (e.g., one or more CSI-RS). For example, the UE 115-a may be configured to remain in a sleep state during the off duration 250. In some cases, the UE 115-a may determine to wake up outside the active time 245 (e.g., receive one or more CSI-RS that fall outside the active time 245 during the off duration 250). In some cases, if the periodic traffic 215 falls outside the active time 245, the UE 115-a may indicate to the network entity 105-a that the UE 115-a may not measure the periodic traffic 215. For example, if the UE 115-a determines to remain in a sleep state for a certain number of C-DRX cycles and not measure the periodic traffic 215 while in the off duration 250, the UE 115-a may send an indication to the network entity 105-a. In some cases, the indication may be sent via the PUCCH, PUSCH, or another channel, or may be sent in a MAC control element (MAC-CE), a capability message (e.g., in RRC signaling), or other message using the uplink communication link 210. In some cases, the network entity 105-a may reduce overhead by configuring the periodic traffic 215 to be transmitted during the active time 245 or the on-duration 235 based on the indication. In some cases, the UE 115-a and the network entity 105-a may communicate with each other as described herein. Figure 1 – Figure 5 Such decisions and instructions are performed during any of the processes described.
[0112] In some examples, periodic traffic 215 may include periods and offsets from a continuous range of periods and offsets (e.g., when Figure 3A301 described in the signaling diagram 302 of FIG. 20 ). For example, in some cases, the period of the periodic service 215 may include 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, or 640 time slots. In some cases, the network entity 105-a may extend the period and time slots of the periodic service 215 (e.g., CSI-RS, SRS, or other reference signal), where the period and time slot may include integers from a continuous range of time slot values from 0 to 640 time slots. In some cases, the period or offset associated with the periodic service 215 may include any integer value. Additionally or alternatively, the period of the periodic service 215 (e.g., CSI-RS, SRS, or other reference signal) may include one or more rational numbers or non-integers, such as fractions of two integers (e.g., 50 / 3ms). In some cases, the network entity 105-a may extend the period and time slots of the periodic service 215 (e.g., CSI-RS, SRS, or other reference signal) in this document. Figure 1 – Figure 5 Periodic services 215 are configured accordingly during any of the described processes.
[0113] In some examples, the timing reference value may be updated to align the periodic service 215 with the non-uniform C-DRX cycle configuration. For example, the periodic service 215 may include one or more CSI-RS, SRS, or other reference signals, wherein the periodic service 215 may be configured according to a SFN and a subframe number that may define a corresponding time slot (e.g., configured or preconfigured by the network entity 105). The SFN may include any integer in the range of 0 to 1023 frames, wherein the subframe number may include any integer in the range of 0 to 9 frames. The CSI-RS and SRS may be configured according to a reference time of [(SFNx10)+subframe number], which may be repeated every 10,240 ms, wherein 10,240 ms may constitute a superframe period. In some cases, the superframe period of 10,240 ms may not be aligned with the non-uniform period because the superframe period is periodic, which may cause the CSI-RS to be out of synchronization with the non-uniform C-DRX cycle, as described herein. For example, for 60 fps, a 0.6 frame periodicity of the XR traffic may be maintained at the end of the superframe (e.g., when the SFN wraps around to an integer of 0), and for 120 fps, a 0.2 frame periodicity of the XR traffic may be maintained at the end of the superframe. Partial frames may result in a mismatch between periodic CSI-RS and SRS and XR downlink frame arrivals with partial frames. In some cases, if a non-uniform C-DRX cycle is configured to match XR downlink frame arrivals, UE 115-a may lose one or more CSI-RS or SRS.
[0114] To mitigate partial frame based mismatches, the network entity 105-a may implement SFN M The timing reference value may be updated so that SFNM =[(SFN M +1)%M], where % may represent a modulo operator. Thus, when SFN changes (e.g., due to an increase in time), SFN M can be updated accordingly. In some cases, M may represent the modulus and may be configured as 1000 for XR applications to accommodate non-uniform traffic and corresponding C-DRX configurations. For example, SFN M It can be configured as an integer between 0 and 999 frames, and the corresponding subframe number can be any integer between 0 and 9. M x10)+subframe number] can be repeated every 10,000 ms to align the C-DRX cycle with the non-uniform XR period and the reception of CSI-RS and SRS due to the SFN M In some cases, network entity 105-a may include a portion of a frame missing at the end of a superframe period. Figure 1 – Figure 5 Periodic services 215 are configured accordingly during any of the described processes.
[0115] In some examples, the Figure 1 – Figure 5 The techniques described herein are used to enhance C-DRX configuration and PDCCH monitoring to improve power savings in XR communications. Additionally or alternatively, the techniques described herein may be used to improve efficient resource allocation and scheduling of XR services, including enhancements to SPS, CG, and dynamic scheduling and grants. For example, the techniques described herein may reduce jitter, reduce latency, and improve reliability of multiple streams by enhancing the periodicity or other characteristics of periodic services 215 or one or more C-DRX configurations.
[0116] Figure 3A , Figure 3B and Figure 3C Different examples of signaling diagrams 301, 302, and 303 that support monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure may be illustrated, respectively. The signaling diagrams 301, 302, and 303 may represent signaling between a network entity 105 and a UE 115 according to one or more periodic signals (e.g., periodic messages) aligned with one or more C-DRX configurations, as described with reference to FIG. Figure 1 and Figure 2 as described.
[0117] Figure 3AThe signaling diagram 301 may represent one or more configurations and signaling for adjusting periodic traffic, dynamic indication, or implicit signaling so that the periodic traffic falls within the C-DRX active time. For example, the signaling diagram 301 may include multiple C-DRX cycles 305, where the C-DRX active time 310 may start at the beginning of each cycle 305. In some cases, the C-DRX active time 310 may represent the C-DRX on duration, or the C-DRX on duration and the inactive timer duration, as shown in FIG. Figure 2 The signaling diagram 301 may also include one or more periodic signals 315 .
[0118] In some examples, the network entity 105 may configure one or more periodic signals 315 (e.g., periodic messages) having one or more semi-static periods to match a non-uniform, semi-static C-DRX configuration. For example, the network entity 105 may configure one or more periodic signals 315 (e.g., one or more CSI-RS) to be sent with a period of 16ms, 17ms, 17ms, repeated to match an equal period of an eC-DRX configuration matching an XR service. The eC-DRX configuration may have one or more cycles 305, wherein a first cycle 305 may have a period of 16ms, a second cycle 305 may have a period of 17ms, and a third cycle 305 may also have a period of 17ms. Additionally or alternatively, the network entity 105 may configure one or more periodic signals 315 having a non-integer period including a fraction of two integers (e.g., 50 / 3ms) to match a non-integer period of a C-DRX configuration, wherein the period of the cycle 305 may include a fraction (e.g., 50 / 3ms). In some cases, the network entity 105 may derive the period of the periodic signal 315-a based on an equation. For example, the network entity 105 may derive the period of each cycle 305 based on an equation, and if the result is a non-integer period, it may be rounded to the nearest integer (up or down).
[0119] In some examples, the network entity 105 may send an indication of the update period of the periodic signal 315 to the UE 115 (e.g., via RRC, DCI, or other signaling). In some cases, the network entity 105 may configure a separate configuration for each type of periodic signal to define each new period configuration. For example, the network entity 105 may include a CSI-RS configuration, an SRS configuration, an SSB configuration, a search space configuration, an SPS / CG configuration, a TRS configuration, etc. In some examples, based on the configuration and signaling described in the signaling diagram 301, one or more periodic signals 315 may fall within each activity time 310.
[0120] In some examples, the network entity 105 may use a dynamic indication to advance or delay the active time 310. For example, based on jitter, speed mismatch, semi-static configuration, or non-integer periodicity, the active time 310-a and cycle 305-a may be delayed compared to an integer periodicity configuration, thereby causing the periodic signal 315-a to fall outside the active time 310-a. Based on the periodic signal 315-a falling outside the active time 310-a, the network entity 105 may send a dynamic indication 320 to the UE 115. For example, the dynamic indication 320 may be a WUS. Based on the indication, the UE 115 may transition to an active state within the active time 310-a at an earlier time before the network entity 105 sends the periodic signal 315-a, so that the periodic signal 315-a falls within the active time 310-a and is successfully received at the UE 115. As another example, if the periodic signal 315-a is scheduled to arrive at a time after the end of the active time 310-a, the network entity 105 may send a dynamic indication to delay the active time 310-a. For example, the network entity 105 may send a dynamic indication 320 in the DCI or MAC-CE to indicate the delay based on determining that the periodic signal 315-a will fall outside the active time 310-a. In some cases, the dynamic indication 320 may indicate the period of the periodic signal 315, and the UE 115 may determine that the periodic signal 315-a will be received before or after the active time 310-a based on the period and cycle 305 of the periodic signal 315, and may adjust the active time 310-a accordingly. In some cases, the network entity 105 may send a dynamic indication 320 for each instance that the periodic signal 315 falls outside the active time 310. In some cases, the dynamic indication 320 may indicate advancing or delaying multiple cycles 305 of multiple periodic signals 315.
[0121] In some examples, the network entity 105 may include an implicit link between the periodic signal 315 and the C-DRX configuration of the UE 115. For example, the network entity 105 may configure one or more parameters of the configuration of the periodic signal 315 based on the C-DRX configuration of the active time 310 and the cycle 305 so that the periodic signal 315 falls within each active time 310. In some cases, the network entity 105 may configure the implicit link based on one or more periods of the C-DRX configuration, a dynamic indication, a start time of the active time 310 (or an on-duration of the active time 310) and the cycle 305, a length of the active time 310 and other parameters (e.g., an on-duration of the active time 310 or an inactivity timer), or other parameters related to the periodic signal 315 and the C-DRX configuration. For example, the network entity 105 may configure the cycle 305-a and the active time 310-a to start after a delay based on a non-uniform semi-static period or a dynamic indication. Based on the implicit link, the periodic signal 315-a can be delayed according to the delayed cycle 305-a and the active time 310-a so that the periodic signal 315-a falls within the active time 310-a regardless of the configuration of the cycle 305-a and the active time 310-a. In some cases, a special increment can be configured for the C-DRX configuration and for the configuration of the periodic signal 315.
[0122] Figure 3B The signaling diagram 302 may represent multiple C-DRX configurations with different periods, or extend the C-DRX active time based on one or more periodic signals or messages falling outside the active time. For example, the signaling diagram 302 may include multiple C-DRX cycles 305 and one or more active times 310, as shown in FIG. Figure 3A The signaling diagram 302 may also include a plurality of active times 311. In some cases, the active times 310 and 311 may represent a C-DRX on duration, or a C-DRX on duration and an inactive timer duration, as described in reference to FIG. Figure 2 The signaling diagram 301 may also include one or more periodic signals 315 .
[0123] In some examples, the network entity 105 may configure the active time 310 and the active time 311 with different periods. For example, the network entity 105 may include the active time 310 in the first non-uniform semi-static C-DRX configuration, as shown in FIG. Figure 3AAs described, active time 310 may be configured with a first duration. In some examples, a cycle 305 preceding cycle 305-b may include a longer period than other cycles 305, resulting in an offset or delay before active time 310-b. In some cases, the first configuration may be configured to accommodate non-uniform XR traffic. The network entity 105 may also include active time 311 in a second periodic C-DRX configuration, wherein active time 311 may be configured with a second duration. In some examples, active time 311 may be configured based on a period of periodic signal 315 or one or more other parameters so that periodic signal 315 falls within active time 311.
[0124] In some examples, the UE 115 may transition to an active state during an active time 310 of a first C-DRX configuration and during an active time 311 of a second C-DRX configuration. For example, the UE 115 may transition to an active state based on a combination of the duration and timing of the two C-DRX configurations. In some cases, the UE 115 may transition to an active state at the beginning of the active time 311-a to monitor reception, and may remain in the active state until the end of the active time 310-a. Based on the combination of the active times 310-b and 311-a, the UE 115 may be in an active state to receive non-uniform XR services (e.g., during the active time 310-b), and receive periodic signals 315 (e.g., CSI-RS), including periodic signals 315-b. In some examples, the network entity 105 may send both the first and second C-DRX configurations to the UE 115 (e.g., in an RRC message). In some examples, the UE 115 may monitor according to the first C-DRX configuration, the second C-DRX configuration, or both. In some cases, network entity 105 may instruct UE 115 to perform a union of two C-DRX configurations (eg, may be indicated in the same RRC message). In some examples, UE 115 may be preconfigured to union the two C-DRX configurations.
[0125] As another example, the UE 115 may adjust the length of the C-DRX active time to accommodate the periodic signal 315. For example, the UE 115 may be configured with a first C-DRX configuration and active time 310 as described herein. Based on receiving the periodic signal outside of the active time 310-b, the UE 115 may extend the duration of the corresponding active time 310-b. For example, the UE 115 may extend the active time 310-b to include a corresponding delay, including the time to receive the periodic signal 315-b. In some examples, the network entity 105 may indicate to the UE 115 (e.g., via DCI, RRC, or L1 signaling) that the periodic signal 315-b will fall outside the range of the active time 310-b, in which case the UE 115 may respond by extending the duration of the active time 310-b. In some examples, network entity 105 may configure UE 115 to extend the duration of active time 310 based on a period or other characteristic of periodic signal 315 (e.g., as indicated in an RRC configuration including a C-DRX configuration) or based on a dynamic indication from network entity 105. In some examples, UE 115 may indicate to network entity 105 whether extended active time is supported at UE 115. In some examples, UE 115 may be preconfigured to extend the C-DRX active time based on periodic signal 315 falling outside of active time 310-b.
[0126] Figure 3C The signaling diagram 303 may represent one or more changes to the signaling or C-DRX configuration to accommodate multiple UEs 115. For example, the signaling diagram 303 may include multiple C-DRX cycles 305 and one or more active times 310, as shown in FIG. Figure 3A and Figure 3B In some cases, the activity time 310 may represent a C-DRX on duration, or a C-DRX on duration and an inactivity timer duration, as described in reference Figure 2 The signaling diagram 303 may also include one or more periodic signals 315 .
[0127] In some examples, the network entity 105 can send one or more periodic signals 315 to multiple UEs 115, where the periodic signals 315 can include one or more common messages. For example, the network entity 105 can send one or more common search space (CSS) signals, shared CSI-RS, TRS, or other shared periodic messages to one or more UEs 115. In some examples, each UE 115 can have a separate C-DRX configuration, where the C-DRX configuration can be a periodic configuration, or can be non-uniform semi-static, have a non-integer period, or can be adjusted based on dynamic signaling, as described herein with reference to Figure 1 , Figure 2 , Figure 3A and Figure 3B In some cases, one or more UEs 115 may have different C-DRX configurations, C-DRX cycle periods, and other different factors compared to each other, while the UEs 115 may receive one or more of the same shared periodic signals 315. In some cases, adjusting the periodic signal 315, one or more C-DRX configurations including the active time 310, or a combination thereof as described herein may affect one or more UEs 115 differently based on the different configurations.
[0128] In some cases, the network entity 105 may adjust the one or more periodic signals 315, or the network entity 105 or the UE 115 may adjust the C-DRX configuration and one or more active times 310 of one or more UEs 115 configured with a non-uniform C-DRX cycle, while avoiding adjusting the periodic signals 315 or active times 310 and corresponding C-DRX configurations of one or more UEs 115 configured with a uniform (e.g., integer periodicity) C-DRX cycle. For example, one or more XR UEs 115 may receive a configuration, signaling, or other message to adjust the C-DRX configuration and one or more active times 310 of one or more UEs 115 configured with a non-uniform C-DRX cycle. Figure 3A and Figure 3B The method described herein adjusts the corresponding active time 310 of the C-DRX configuration at the XR UE 115. Thus, the active time 310-c may be adjusted such that the XR UE 115 may receive a periodic signal 315-c that would otherwise fall outside the active time 310-c. Figure 3A and Figure 3B With the described method, the network entity 105 may avoid configuring one or more periodic UEs 115 or one or more UEs 115 with non-uniform C-DRX configurations different from the XR UEs 115. For example, the network entity 105 may avoid adjusting the active time 310 or C-DRX configuration of the periodic UEs 115 or different UEs 115 to match the periodic signal 315.
[0129] As another example, the network entity 105 may apply the reference Figure 3A and Figure 3B The method described herein may be used to send one or more previously or differently configured periodic signals and channels. For example, the network entity 105 may send one or more periodic signals 315 (including shared periodic signals), including periodic signal 315-d (e.g., one or more shared messages may be broadcast) to all UEs 115. In addition to the periodic signal 315, the network entity 105 may also send additional copies of the periodic signal 315, including the periodic signal 315-c, wherein the additional copies of the periodic signal 315 may be based on the reference Figure 3A and Figure 3B The method described herein is configured. In some examples, the network entity 105 may receive an indication from the XR UE 115 indicating a mismatch between the periodic signal 315 and one or more C-DRX configurations, or the network entity may determine to advance or delay the periodic signal 315 (e.g., CSS) based on the mismatch. In response to the indication from the UE 115 or the decision at the network entity 105, the network entity 105 may send the original periodic signal 315-d, and may send an additional copy of the periodic signal 315-d at an earlier or later time as the periodic signal 315-c. By using additional resources (e.g., additional copies of the periodic signal 315), the network entity 105 may send a periodic signal 315 that can be received by both a periodic UE 115 and a non-uniform UE 115 (e.g., an XR UE 115). In some examples, the network entity 105 may be configured in an embodiment of the present invention in the manner described herein. Figure 4 Concurrently with the described two-phase C-DRX cycle configuration, an additional periodic signal 315 or indication is sent to the periodic UE 115 as described herein.
[0130] In some examples, the network entity 105 may send an indication of one or more changes to the periodic signal 315. For example, the network entity 105 may send an indication to one or more periodic UEs 115 indicating that the network entity 105 has changed the periodic signal 315 according to the reference signal. Figure 3A and Figure 3B One or more methods described herein change one or more parameters of the periodic signal 315. One or more periodic UEs 115 may respond to the indication by adjusting one or more parameters to adapt to the change in the periodic signal 315, or may ignore the indication. In some examples, the network entity 105 may include the indication in a dynamic indication (e.g., a DCI, a MAC-CE, or other downlink message). In some examples, the network entity 105 may perform as described in reference to Figure 3A and Figure 3B One or more of the procedures described herein may be performed without sending an additional periodic signal 315, without notifying the periodic UE 115 of changes to the periodic signal 315, or both. In some examples, the UE 115 may indicate support for the reference Figure 3A , Figure 3B and Figure 3C In some examples, UE 115 may be pre-configured to perform one or more of the procedures described herein. Figure 3A , Figure 3B and Figure 3C One or more operations described.
[0131] Figure 4An example of a signaling diagram 400 that supports monitoring of periodic signals during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated. The signaling diagram 400 may represent signaling between a network entity 105 and a UE 115 in accordance with one or more periodic signals (e.g., periodic messages) aligned with one or more C-DRX configurations, as described with reference to FIG. Figure 1 , Figure 2 and Figure 3A – Figure 3C In some examples, the signaling diagram 400 may represent a two-phase cycle configuration of C-DRX for the UE 115, including one or more outer cycles 405 and one or more inner cycles 410. The C-DRX configuration may also include one or more active times 415, which may represent the two-phase cycle configuration of the C-DRX for the UE 115, including one or more outer cycles 405 and one or more inner cycles 410. Figure 1 , Figure 2 and Figure 3A – Figure 3C The network entity 105 may also send one or more periodic signals 420 to the UE 115, which may indicate the one or more activity times described above (e.g., including an on-duration, an inactivity timer duration, or both). Figure 1 , Figure 2 and Figure 3A – Figure 3C One or more periodic signals or messages described.
[0132] In some examples, the two-stage C-DRX configuration may include three inner loops 410 in each outer loop 405, including inner loops 410-a, 410-b, and 410-c in outer loop 405-a. In some cases, each inner loop 410 may have a separate period. For example, inner loop 410-a may have a period of 16ms, inner loop 410-b may have a period of 17ms, and inner loop 410-c may have a period of 17ms. Outer loop 405-a may include a period that is the sum of the periods of the inner loops 410 within outer loop 405-a. For example, outer loop 405-a may include a period of 16ms+17ms+17ms=50ms. In some cases, each inner loop 410 may include multiple time slots.
[0133] In some cases, the network entity 105 may send one or more periodic signals 420 based on a two-phase cycle configuration for C-DRX configured at the UE 115. For example, a periodic signal 420-a may be sent in the 0th time slot of the inner cycle 410-a, and a second periodic signal 420-a may be sent in the 20th time slot of the inner cycle 410-a, where the two periodic signals 420-a may be sent with a period of 10 ms (e.g., may be 10 ms apart). In some cases, the periodic signal 420 may be specific to each inner cycle 410. For example, the network entity 105 may send the periodic signal 420-a every 10 ms during the duration of the inner cycle 410-a. At the start of the inner cycle 410-b, the network entity 105 may stop sending the periodic signal 420-a and may start sending one or more periodic signals 420-b, starting at time slot 0 of the inner cycle 410-b. For example, the network entity 105 may avoid sending another periodic signal 420-a 10 ms after the last periodic signal 420-a of the inner loop 410-a based on starting a new periodic transmission configuration at the beginning of the inner loop 410-b. The network entity 105 may similarly stop transmission according to the inner loop 410-b at the beginning of the inner loop 410-c, and may similarly send one or more periodic signals 420-c (e.g., at intervals of 10 ms) during the inner loop 410-c.
[0134] In some cases, the network entity 105 may send a greater or lesser amount of periodic signals 420 during each inner cycle 410 based on a determination or configuration. In some cases, the UE 115 may monitor the periodic signals 420 based on a C-DRX configuration, where the network entity 105 may indicate the C-DRX configuration. In some cases, the UE 115 may send a message (e.g., a capability message) indicating the two-stage C-DRX configuration to the network entity 105. In some examples, the UE 115 may send a capability message to the network entity 105 indicating the ability of the UE 115 to support the two-stage C-DRX configuration, where the network entity 105 may send the two-stage C-DRX configuration to the UE 115 based on receiving the capability message. In some cases, the network entity 105 may send one or more periodic signals 420 (e.g., one or more CSI-RS) with a period of 10 ms, 20 ms, 40 ms, or another period.
[0135] In some examples, sending the periodic signal 420 according to the two-phase configuration may align the periodic signal 420 with the inner cycle 410, regardless of whether the C-DRX configuration at the UE 115 is periodic or non-uniform. For example, the periodic signal 420 may be sent at the beginning and end of each inner cycle 410, wherein each inner cycle 410 may include an active time 415 at the beginning, wherein the periodic signal 420 may fall within the active time 415. In some cases, if the UE 115 enters a sleep state after the active time 415 in each inner cycle 410, the UE 115 may avoid receiving or sending reports based on the periodic signal 420 sent by the network entity 105 during the sleep state. In some cases, the network entity 105 may avoid sending the periodic signal 420 at the end of each inner cycle 410 based on a determination or indication (e.g., from the UE 115) that the UE 115 will be in the sleep state during the time period at the end of each inner cycle 410. In some examples, the two-step C-DRX configuration can be similarly used to align the transmission of the periodic signal 420 with a non-integer periodic C-DRX configuration. For example, the UE 115 can use a two-stage C-DRX configuration to align with a rational or non-integer period of XR communication of 60 fps or 16.666 ms, where the subspace carrier spacing (SCS) is 30 kilohertz (kHz) or 2.5 ms.
[0136] Figure 5 An example of a process flow 500 for supporting monitoring of a periodic signal during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated. The process flow 500 may be implemented by aspects of the wireless communication system 100 or 200 or the signaling diagrams 301, 301, 301, and 400. For example, the process flow 500 may illustrate communications between a UE 115-b and a network entity 105-b, which may be described herein (including references to Figures 1 to 4 )An example of a corresponding device described in ).
[0137] In the following description of the process flow 500, the operations may be performed in an order different from that shown. Certain operations may also be excluded from the process flow 500, or other operations may be added to the process flow 500. In addition, although some operations or signaling are shown as occurring at different times for discussion purposes, these operations may actually occur simultaneously.
[0138] In some examples, UE 115-b may be an example of an XR UE, such as VR goggles or glasses. Additionally or alternatively, UE 115-b may be a mobile device.
[0139] At 505, the network entity 105-b may output (e.g., send) and the UE 115-b may receive (e.g., obtain) a first control message that identifies a first DRX cycle to be used by the UE 115-b and a second DRX cycle to be used by the UE 115-b that is different from the first DRX cycle. In some cases, the first DRX cycle may have a first active duration and the second DRX cycle may have a second active duration. In some cases, the network entity 105-b may output the first control message to one or more UEs including the UE 115-b, wherein the first DRX cycle and the second DRX cycle may be used by the one or more UEs. In some cases, the first control message may include a WUS, a DCI message, a MAC-CE, or any combination thereof.
[0140] At 510, the network entity 105-b may output (e.g., send) and the UE 115-b may receive (e.g., obtain) a second control message that schedules periodic resources for the UE 115-b to use for monitoring a periodic signal, the periodic resources being at least outside of the first activity duration. In some cases, the network entity 105-b may output a second control message to one or more UEs, wherein the periodic resources may be used by the one or more UEs for monitoring the periodic signal. In some cases, the periodic resources may include one or more of a CSI-RS resource, a search space set (e.g., a CSS set), an SPS resource, a CG resource, or an SRS resource. In some examples, the periodic resource may correspond to a period associated with an integer value, one or more rational numbers (e.g., fractions), a timing reference value corresponding to a SFN, or any combination thereof.
[0141] At 515, the network entity 105-b may optionally output (e.g., send) a third control message that schedules additional periodic resources for at least one of the one or more UEs, wherein the additional periodic resources are different from the periodic resources. For example, the network entity 105-b may send the third control message including the additional periodic resources to the UE 115-b, wherein the additional periodic resources may be used for one or more copies of the periodic message, as described in reference to Figure 3C In some cases, the network entity 105 - b may send a third control message to one or more XR UEs including the UE 115 - b , where the UE 115 - b may be an XR UE.
[0142] At 520, the network entity 105-b may output (e.g., send) one or more indications, and the UE 115-b may receive (e.g., obtain) the one or more indications. For example, the network entity 105-b may output an indication that at least one of the one or more UEs is to update periodic resources of a periodic signal to overlap with the first activity duration. In some cases, the at least one UE may be UE 115-b, where the UE 115-b may receive (e.g., obtain) the indication. Additionally or alternatively, the network entity 105-b may output, and the UE 115-b may receive, one or more indications for updating periodic resources according to a period derived from a fraction of two integers, where the first control message is received according to the period.
[0143] In some examples, network entity 105-b may output (e.g., send) to one or more UEs one or more additional indications for updating periodic resources based on a period derived from a fraction of two integers. In some examples, network entity 105-b may output and UE 115-b or one or more UEs 115 may receive an indication for updating periodic resources, wherein the indication is received via a first control message. In some cases, any of the indications described herein may be included in the first control message, the second control message, or both. Additionally or alternatively, any of the indications described herein may be sent separately from the first control message and the second control message (e.g., in another DCI, RRC, or other message).
[0144] In some examples, the network entity 105-b may output (e.g., send) and the UE 115-b may receive (e.g., obtain) an indication of a relationship between a first DRX cycle and a periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first DRX cycle, a first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof. Additionally or alternatively, the network entity 105-b may output and the UE 115-b may receive an indication of an update to the first activity duration, wherein the update to the first activity duration includes starting a third activity duration of the periodic resource based on the indication or extending the first activity duration of the periodic resource based on the indication. In some cases, the network entity 105-b may output and the UE 115-b may receive an indication to monitor during the first activity duration and the third activity duration, wherein the first DRX cycle is a two-stage DRX cycle having the first activity duration and the third activity duration.
[0145] At 525, UE 115-b may optionally update one or more activity durations, periodic resources, or both. For example, UE 115-b (or one or more XR UEs) may update a first activity duration, a periodic resource, or both based on a relationship between a first DRX cycle and a periodic resource. In some examples, updating the first activity duration includes starting a third activity duration of the periodic resource based on the indication or extending the first activity duration of the periodic resource based on the indication, as described herein. Additionally or alternatively, UE 115-b may update the first activity duration to include the first activity duration and the third activity duration.
[0146] At 530, UE 115-b (or one or more UEs) may monitor one or more periodic signals (including the periodic signal) during the first activity duration based on the periodic resource outside the first activity duration, based on updating the first activity duration, updating the periodic resource, or both. In some examples, UE 115-b may optionally refrain from monitoring the periodic signal during the second activity duration based on the periodic resource outside the second activity duration.
[0147] At 535, UE 115-b may optionally send (e.g., output) to the network entity an indication that UE 115-b is avoiding monitoring the periodic signal. In some cases, network entity 105-b may obtain (e.g., receive) an indication that at least one of the one or more UEs is avoiding monitoring the periodic signal, where the indication may include an indication sent by UE 115-b.
[0148] At 540, based on the periodic resource outside of the first activity duration, based on updating the first activity duration, updating the periodic resource, or both, the network entity 105-b may output and the UE 115-b (or one or more UEs 115) may receive (e.g., obtain) a periodic signal during the first activity duration.
[0149] Figure 6 A block diagram 600 of a device 605 supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0150] The receiver 610 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to monitoring periodic signals during non-uniform DRX cycles). The information may be communicated to other components of the device 605. The receiver 610 may utilize a single antenna or a collection of multiple antennas.
[0151] The transmitter 615 may provide means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to monitoring periodic signals during non-uniform DRX cycles). In some examples, the transmitter 615 may be co-located with the receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a collection of multiple antennas.
[0152] The communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0153] In some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof that is configured to or otherwise supports components for performing the functions described herein. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0154] Additionally or alternatively, in some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0155] In some examples, communication manager 620 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with receiver 610, transmitter 615, or both. For example, communication manager 620 may receive information from receiver 610, transmit information to transmitter 615, or be integrated in conjunction with receiver 610, transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.
[0156] According to examples as disclosed herein, the communication manager 620 may support wireless communications at a UE. For example, the communication manager 620 may be configured to or otherwise support a component for receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The communication manager 620 may be configured to or otherwise support a component for receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first active duration. The communication manager 620 may be configured to or otherwise support a component for monitoring a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0157] By including or configuring a communication manager 620 according to the examples described herein, the device 605 (e.g., a processor controlling the receiver 610, the transmitter 615, the communication manager 620, or a combination thereof or otherwise coupled thereto) can support techniques for reducing power consumption and more efficiently utilizing communication resources.
[0158] Figure 7A block diagram 700 of a device 705 supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is illustrated. The device 705 may be an example of aspects of the device 605 or UE 115 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0159] The receiver 710 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to monitoring periodic signals during non-uniform DRX cycles). The information may be communicated to other components of the device 705. The receiver 710 may utilize a single antenna or a collection of multiple antennas.
[0160] The transmitter 715 may provide means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to monitoring periodic signals during non-uniform DRX cycles). In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a collection of multiple antennas.
[0161] The device 705 or its various components may be examples of components for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 720 may include a message receiving component 725, a periodic signal monitoring component 730, or any combination thereof. The communication manager 720 may be an example of various aspects of the communication manager 620 as described herein. In some examples, the communication manager 720 or its various components may be configured to use or otherwise cooperate with the receiver 710, the transmitter 715, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 720 may receive information from the receiver 710, transmit information to the transmitter 715, or be integrated with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.
[0162] According to examples as disclosed herein, the communication manager 720 may support wireless communications at a UE. The message receiving component 725 may be configured to or otherwise support a component for receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The message receiving component 725 may be configured to or otherwise support a component for receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first active duration. The periodic signal monitoring component 730 may be configured to or otherwise support a component for monitoring a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0163] Figure 8 A block diagram 800 of a communication manager 820 that supports monitoring periodic signals during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is illustrated. The communication manager 820 may be an example of aspects of the communication manager 620, the communication manager 720, or both as described herein. The communication manager 820 or its various components may be examples of components for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 820 may include a message receiving component 825, a periodic signal monitoring component 830, an updating component 835, a monitoring indication component 840, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).
[0164] According to examples as disclosed herein, the communication manager 820 may support wireless communications at a UE. The message receiving component 825 may be configured to or otherwise support a component for receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. In some examples, the message receiving component 825 may be configured to or otherwise support a component for receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first active duration. The periodic signal monitoring component 830 may be configured to or otherwise support a component for monitoring a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0165] In some examples, message receiving component 825 may be configured or otherwise support means for receiving an indication that the UE is to update the periodic resources of the periodic signal to overlap with the first activity duration.
[0166] In some examples, the message receiving component 825 may be configured or otherwise support means for receiving one or more indications for updating the periodic resource according to a period derived from a fraction of two integers, wherein the first control message is received according to the period.
[0167] In some examples, the message receiving component 825 may be configured to or otherwise support components for receiving an indication for updating a periodic resource, wherein the indication is received via a first control message and the first control message includes a WUS, a DCI message, a MAC-CE, or any combination thereof.
[0168] In some examples, the message receiving component 825 can be configured or otherwise support means for receiving an indication of a relationship between the first DRX cycle and the periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first DRX cycle, a first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof. In some examples, the updating component 835 can be configured or otherwise support means for updating the first activity duration, updating the periodic resource, or both based on the relationship between the first DRX cycle and the periodic resource.
[0169] In some examples, the message receiving component 825 may be configured to or otherwise support means for receiving an indication of an update to the first activity duration, wherein updating the first activity duration includes starting a third activity duration of the periodic resource based on the indication or extending the first activity duration of the periodic resource based on the indication.
[0170] In some examples, the message receiving component 825 can be configured or otherwise support means for receiving an indication to monitor during a first activity duration and a third activity duration, wherein the first DRX cycle is a two-phase DRX cycle having the first activity duration and the third activity duration. In some examples, the updating component 835 can be configured or otherwise support means for updating the first activity duration to include the first activity duration and the third activity duration.
[0171] In some examples, the periodic signal monitoring component 830 can be configured as or otherwise support components for avoiding monitoring the periodic signal during the second activity duration based on the periodic resource outside the second activity duration. In some examples, the monitoring indication component 840 can be configured as or otherwise support components for sending an indication to a network entity that the UE is avoiding monitoring the periodic signal.
[0172] In some examples, the periodic resources that the UE is to use to monitor the periodic signal include one or more of CSI-RS resources, search space sets, SPS resources, CG resources, or SRS resources.
[0173] In some examples, the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to the SFN, or any combination thereof.
[0174] Fig. 9 A diagram of a system 900 including a device 905 that supports monitoring periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The device 905 may be an example of a device 605, a device 705, or a UE 115 as described herein, or include components thereof. The device 905 may communicate (e.g., wirelessly) with one or more network entities 105, one or more UEs 115, or any combination thereof. The device 905 may include components for two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, a memory 930, a code 935, and a processor 940. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 945).
[0175] I / O controller 910 may manage input and output signals for device 905. I / O controller 910 may also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 910 may represent a physical connection or port to an external peripheral device. In some cases, I / O controller 910 may utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 910 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 910 may be implemented as part of a processor (such as processor 940). In some cases, a user may interact with device 905 via I / O controller 910 or via hardware components controlled by I / O controller 910.
[0176] In some cases, the device 905 may include a single antenna 925. However, in some other cases, the device 905 may have more than one antenna 925, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 915 may communicate bidirectionally via one or more antennas 925, a wired or wireless link, as described herein. For example, the transceiver 915 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 915 may also include a modem for: modulating packets; providing the modulated packets to one or more antennas 925 for transmission; and demodulating packets received from one or more antennas 925. The transceiver 915 or the transceiver 915 and one or more antennas 925 may be examples of transmitters 615, transmitters 715, receivers 610, receivers 710, or any combination thereof or components thereof as described herein.
[0177] The memory 930 may include random access memory (RAM) and read-only memory (ROM). The memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed by the processor 940, cause the device 905 to perform various functions described herein. The code 935 may be stored in a non-transitory computer-readable medium such as a system memory or another type of memory. In some cases, the code 935 may not be directly executable by the processor 940, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, the memory 930 may also include, 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.
[0178] The processor 940 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 cases, the processor 940 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 930) to enable the device 905 to perform various functions (e.g., supporting functions or tasks for monitoring periodic signals during a non-uniform DRX cycle). For example, the device 905 or a component of the device 905 may include a processor 940 and a memory 930 coupled to or coupled to the processor 940, and the processor 940 and the memory 930 are configured to perform the various functions described herein.
[0179] According to examples as disclosed herein, the communication manager 920 may support wireless communications at a UE. For example, the communication manager 920 may be configured to or otherwise support a component for receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The communication manager 920 may be configured to or otherwise support a component for receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first active duration. The communication manager 920 may be configured to or otherwise support a component for monitoring a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0180] By including or configuring a communications manager 920 according to examples as described herein, the device 905 may support techniques for reducing power consumption, more efficiently utilizing communications resources, reducing latency, reducing jitter, and improving communications reliability.
[0181] In some examples, the communication manager 920 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with the transceiver 915, one or more antennas 925, or any combination thereof. Although the communication manager 920 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 920 may be supported or performed by the processor 940, the memory 930, the code 935, or any combination thereof. For example, the code 935 may include instructions that are executable by the processor 940 to cause the device 905 to perform various aspects of monitoring periodic signals during non-uniform DRX cycles as described herein, or the processor 940 and the memory 930 may be otherwise configured to perform or support such operations.
[0182] Fig.10 A block diagram 1000 of a device 1005 supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The device 1005 may be an example of aspects of a network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0183] Receiver 1010 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be communicated to other components of device 1005. In some examples, receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.
[0184] The transmitter 1015 may provide means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 1005. For example, the transmitter 1015 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1015 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 1015 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include a modem or be coupled to a modem.
[0185] The communication manager 1020, the receiver 1010, the transmitter 1015, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 1020, the receiver 1010, the transmitter 1015, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0186] In some examples, the communication manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof that is configured as or otherwise supports components for performing the functions described in the present disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0187] Additionally or alternatively, in some examples, the communication manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0188] In some examples, communication manager 1020 may be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with receiver 1010, transmitter 1015, or both. For example, communication manager 1020 may receive information from receiver 1010, transmit information to transmitter 1015, or be integrated in conjunction with receiver 1010, transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.
[0189] According to examples as disclosed herein, the communication manager 1020 may support wireless communications at a network entity. For example, the communication manager 1020 may be configured to or otherwise support a component for outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The communication manager 1020 may be configured to or otherwise support a component for outputting a second control message that schedules a periodic resource to be used by one or more UEs to monitor a periodic signal, the periodic resource being at least outside the first active duration. The communication manager 1020 may be configured to or otherwise support a component for outputting a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0190] By including or configuring a communications manager 1020 according to the examples described herein, a device 1005 (e.g., a processor controlling a receiver 1010, a transmitter 1015, a communications manager 1020, or a combination thereof or otherwise coupled thereto) can support techniques for reducing power consumption and more efficiently utilizing communications resources.
[0191] Fig.11 A block diagram 1100 of a device 1105 supporting monitoring of a periodic signal during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The device 1105 may be an example of aspects of the device 1005 or network entity 105 as described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communication manager 1120. The device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0192] Receiver 1110 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be communicated to other components of device 1105. In some examples, receiver 1110 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, receiver 1110 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.
[0193] The transmitter 1115 may provide means for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of the device 1105. For example, the transmitter 1115 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1115 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 1115 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1115 and the receiver 1110 may be co-located in a transceiver, which may include a modem or be coupled to a modem.
[0194] The device 1105 or its various components may be examples of components for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 1120 may include a message output manager 1125, a periodic signal output manager 1130, or any combination thereof. The communication manager 1120 may be an example of various aspects of the communication manager 1020 as described herein. In some examples, the communication manager 1120 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with the receiver 1110, the transmitter 1115, or both. For example, the communication manager 1120 may receive information from the receiver 1110, transmit information to the transmitter 1115, or be integrated with the receiver 1110, the transmitter 1115, or both to obtain information, output information, or perform various other operations as described herein.
[0195] According to examples as disclosed herein, the communication manager 1120 may support wireless communications at a network entity. The message output manager 1125 may be configured to or otherwise support a component for outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The message output manager 1125 may be configured to or otherwise support a component for outputting a second control message that schedules a periodic resource to be used by one or more UEs to monitor a periodic signal, the periodic resource being at least outside the first active duration. The periodic signal output manager 1130 may be configured to or otherwise support a component for outputting a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0196] Fig.12 A block diagram 1200 of a communication manager 1220 supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The communication manager 1220 may be an example of aspects of the communication manager 1020, the communication manager 1120, or both as described herein. The communication manager 1220 or its various components may be examples of components for performing various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein. For example, the communication manager 1220 may include a message output manager 1225, a periodic signal output manager 1230, a monitoring indication manager 1235, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses), which communication may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with the network entity 105, between devices, components, or virtualized components associated with the network entity 105), or any combination thereof.
[0197] According to examples as disclosed herein, the communication manager 1220 may support wireless communications at a network entity. The message output manager 1225 may be configured to or otherwise support a component for outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. In some examples, the message output manager 1225 may be configured to or otherwise support a component for outputting a second control message that schedules a periodic resource for one or more UEs to monitor a periodic signal, the periodic resource being at least outside the first active duration. The periodic signal output manager 1230 may be configured to or otherwise support a component for outputting a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0198] In some examples, to support updating periodic resources, the message output manager 1225 may be configured to or otherwise support components for outputting a third control message for scheduling additional periodic resources for at least one of one or more UEs, where the additional periodic resources are different from the periodic resources.
[0199] In some examples, message output manager 1225 may be configured or otherwise support components for outputting an indication that at least one of the one or more UEs is to update the periodic resources of the periodic signal to overlap with the first activity duration.
[0200] In some examples, message output manager 1225 may be configured or otherwise support means for outputting one or more indications for updating periodic resources according to a period derived from a fraction of two integers according to which the first control message is output.
[0201] In some examples, the message output manager 1225 may be configured to or otherwise support components for outputting an indication for updating periodic resources, wherein the indication is output via a first control message, and the first control message includes a WUS, a DCI message, a MAC-CE, or any combination thereof.
[0202] In some examples, the message output manager 1225 may be configured to or otherwise support components for outputting an indication of a relationship between a first DRX cycle and a periodic resource, where the relationship corresponds to a period of the periodic resource, a start time of the first DRX cycle, a first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof.
[0203] In some examples, the message output manager 1225 may be configured to or otherwise support components for outputting an indication of an update to the first activity duration, wherein the update to the first activity duration includes starting a third activity duration of the periodic resource based on the indication or extending the first activity duration of the periodic resource based on the indication.
[0204] In some examples, the message output manager 1225 may be configured or otherwise support components for outputting an indication of monitoring during a first activity duration and a third activity duration, wherein the first DRX cycle is a two-phase DRX cycle having the first activity duration and the third activity duration.
[0205] In some examples, monitoring indication manager 1235 may be configured or otherwise support components for obtaining an indication that at least one of one or more UEs is avoiding monitoring a periodic signal.
[0206] In some examples, the periodic resources to be used by one or more UEs to monitor periodic signals include one or more of CSI-RS resources, search space sets, SPS resources, CG resources, or SRS resources.
[0207] In some examples, the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to the SFN, or any combination thereof.
[0208] Fig.13 A diagram of a system 1300 including a device 1305 that supports monitoring periodic signals during a non-uniform DRX cycle in accordance with one or more aspects of the present disclosure is shown. The device 1305 may be an example of a device 1005, a device 1105, or a network entity 105 as described herein, or include components thereof. The device 1305 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which communication may include communication through one or more wired interfaces, through one or more wireless interfaces, or any combination thereof. The device 1305 may include components that support output and acquisition of communications, such as a communication manager 1320, a transceiver 1310, an antenna 1315, a memory 1325, a code 1330, and a processor 1335. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1340).
[0209] The transceiver 1310 may support bidirectional communication via a wired link, a wireless link, or both as described herein. In some examples, the transceiver 1310 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1310 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1305 may include one or more antennas 1315, which may be capable of sending or receiving wireless transmissions (e.g., concurrently). The transceiver 1310 may also include a modem for modulating a signal, for providing a modulated signal for transmission (e.g., via one or more antennas 1315, via a wired transmitter), for receiving a modulated signal (e.g., from one or more antennas 1315, from a wired receiver), and for demodulating a signal. In some implementations, the transceiver 1310 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1315 configured to support various receiving operations or obtaining operations, or one or more interfaces coupled to one or more antennas 1315 configured to support various transmitting operations or output operations, or a combination thereof. In some implementations, the transceiver 1310 may include or be configured to be coupled to one or more processors or memory components, which are operable to: perform or support operations based on received or obtained information or signals, or generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1310, or the transceiver 1310 and one or more antennas 1315, or the transceiver 1310 and one or more antennas 1315 and one or more processors or memory components (e.g., processor 1335, or memory 1325, or both) may be included in a chip or chip assembly installed in the device 1305. The transceiver 1310 or transceiver 1310 and one or more antennas 1315 or wired interfaces (where applicable) may be examples of transmitter 1015, transmitter 1115, receiver 1010, receiver 1110, or any combination thereof or components thereof as described herein. In some examples, the transceiver may be operable to support communications via one or more communication links (e.g., communication link 125, backhaul communication link 120, midhaul communication link 162, fronthaul communication link 168).
[0210] Memory 1325 may include RAM and ROM. Memory 1325 may store computer-readable, computer-executable code 1330 including instructions that, when executed by processor 1335, cause device 1305 to perform various functions described herein. Code 1330 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1330 may not be directly executable by processor 1335, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1325 may also include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.
[0211] The processor 1335 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof). In some cases, the processor 1335 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1335. The processor 1335 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1325) to enable the device 1305 to perform various functions (e.g., supporting functions or tasks for monitoring periodic signals during non-uniform DRX cycles). For example, the device 1305 or a component of the device 1305 may include a processor 1335 and a memory 1325 coupled to the processor 1335, the processor 1335 and the memory 1325 being configured to perform the various functions described herein. The processor 1335 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, a virtual machine, or a container instance) that may host functions for performing the functions of the device 1305 (e.g., by executing code 1330). The processor 1335 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1305 (such as in the memory 1325). In some specific implementations, the processor 1335 may be a component of a processing system. A processing system may generally refer to a system or a series of machines or components that receive inputs and process these inputs to produce a set of outputs (which may be passed to other systems or components (e.g., of the device 1305)). For example, the processing system of the device 1305 may refer to a system including various other components or subcomponents of the device 1305, such as the processor 1335, or the transceiver 1310, or the communication manager 1320, or other components or combinations of components of the device 1305. The processing system of device 1305 may be docked with other components of device 1305, and may process information (such as input or signal) received from other components or output information to other components. For example, a chip or modem of device 1305 may include a processing system and an interface for outputting information or for obtaining information or both. The interface may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information. In some specific implementations, the first interface may refer to an interface between a processing system of a chip or modem and a transmitter, so that device 1305 can send information output from the chip or modem. In some specific implementations, the second interface may refer to an interface between a processing system of a chip or modem and a receiver, so that device 1305 can obtain information or signal input, and the information can be passed to the processing system.One of ordinary skill in the art will readily recognize that the first interface may also obtain information or signal input, and the second interface may also output information or signal output.
[0212] In some examples, bus 1340 may support communications of protocol layers (e.g., within a protocol layer) of a protocol stack. In some examples, bus 1340 may support communications associated with logical channels of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within components of device 1305, or communications performed between different components of device 1305 that may be co-located or may be located in different locations (e.g., where device 1305 may refer to a system in which one or more of communication manager 1320, transceiver 1310, memory 1325, code 1330, and processor 1335 may be located in one component of different components or divided between different components).
[0213] In some examples, communication manager 1320 may manage aspects of communications with core network 130 (e.g., via one or more wired or wireless backhaul links). For example, communication manager 1320 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, communication manager 1320 may manage communications with other network entities 105 and may include a controller or scheduler for controlling communications with UE 115 in coordination with other network entities 105. In some examples, communication manager 1320 may support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network entities 105.
[0214] According to examples as disclosed herein, the communication manager 1320 may support wireless communications at a network entity. For example, the communication manager 1320 may be configured to or otherwise support a component for outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The communication manager 1320 may be configured to or otherwise support a component for outputting a second control message that schedules a periodic resource to be used by one or more UEs to monitor a periodic signal, the periodic resource being at least outside the first active duration. The communication manager 1320 may be configured to or otherwise support a component for outputting a periodic signal during the first active duration based on updating the first active duration, updating the periodic resource, or both based on the periodic resource outside the first active duration.
[0215] By including or configuring a communications manager 1320 according to examples as described herein, the device 1305 may support techniques for reducing power consumption, more efficiently utilizing communications resources, reducing latency, reducing jitter, and improving communications reliability.
[0216] In some examples, the communication manager 1320 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the transceiver 1310, one or more antennas 1315 (e.g., where applicable), or any combination thereof. Although the communication manager 1320 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1320 may be supported or performed by the processor 1335, the memory 1325, the code 1330, the transceiver 1310, or any combination thereof. For example, the code 1330 may include instructions that are executable by the processor 1335 to cause the device 1305 to perform various aspects of monitoring periodic signals during a non-uniform DRX cycle as described herein, or the processor 1335 and the memory 1325 may be otherwise configured to perform or support such operations.
[0217] Fig.14 A flowchart illustrating a method 1400 for supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE or a component thereof as described in reference to Figures 1 to 9 The UE 115 described herein may be executed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.
[0218] At 1405, the method may include receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The operations of 1405 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed as described in reference to Figure 8 The message receiving component 825 is used to execute.
[0219] At 1410, the method may include receiving a second control message identifying a periodic resource that the UE is to use to monitor the periodic signal, the periodic resource being at least outside the first activity duration. The operations of 1410 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed as described in reference to Figure 8 The message receiving component 825 is used to execute.
[0220] At 1415, the method may include monitoring the periodic signal based on the periodic resource outside the first activity duration, based on updating the first activity duration, updating the periodic resource, or both during the first activity duration. The operations of 1415 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed as described in reference to Figure 8 The periodic signal monitoring component 830 is used to perform.
[0221] Fig.15 A flow chart illustrating a method 1500 for supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE or a component thereof as described herein. Figures 1 to 9 The UE 115 described herein may be executed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.
[0222] At 1505, the method may include receiving a first control message identifying a first DRX cycle to be used by the UE and a second DRX cycle to be used by the UE that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The operations of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed as described in reference to Figure 8 The message receiving component 825 is used to execute.
[0223] At 1510, the method may include receiving an indication that the UE is to update the periodic resource of the periodic signal to overlap with the first activity duration. The operations of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described in reference Figure 8 The message receiving component 825 is used to execute.
[0224] At 1515, the method may include receiving a second control message identifying a periodic resource that the UE is to use to monitor the periodic signal, the periodic resource being at least outside the first activity duration. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed as described in reference to Figure 8 The message receiving component 825 is used to execute.
[0225] At 1520, the method may include monitoring the periodic signal based on the periodic resource outside the first activity duration, based on updating the first activity duration, updating the periodic resource, or both during the first activity duration. The operations of 1520 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1520 may be performed as described in reference to Figure 8 The periodic signal monitoring component 830 is used to perform.
[0226] Fig.16 A flowchart illustrating a method 1600 for supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a network entity or a component thereof as described herein. Figures 1 to 5 as well as Figures 10 to 13 In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0227] At 1605, the method may include outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The operations of 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be described with reference to Fig.12 The message output manager 1225 is used to execute.
[0228] At 1610, the method may include outputting a second control message that schedules periodic resources for one or more UEs to monitor the periodic signal, the periodic resources being at least outside the first activity duration. The operations of 1610 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1610 may be described with reference to Fig.12 The message output manager 1225 is used to execute.
[0229] At 1615, the method may include outputting a periodic signal based on the periodic resource outside the first activity duration, based on updating the first activity duration, updating the periodic resource, or both during the first activity duration. The operations of 1615 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Fig.12 The described periodic signal output manager 1230 is executed.
[0230] Fig.17 A flowchart illustrating a method 1700 for supporting monitoring of periodic signals during a non-uniform DRX cycle according to one or more aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a network entity or a component thereof as described herein. Figures 1 to 5 as well as Figures 10 to 13 In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0231] At 1705, the method may include outputting a first control message identifying a first DRX cycle to be used by one or more UEs and a second DRX cycle to be used by one or more UEs that is different from the first DRX cycle, the first DRX cycle having a first active duration and the second DRX cycle having a second active duration. The operations of 1705 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1705 may be described with reference to Fig.12 The message output manager 1225 is used to execute.
[0232] At 1710, the method may include outputting a second control message that schedules periodic resources for one or more UEs to monitor the periodic signal, the periodic resources being at least outside the first activity duration. The operations of 1710 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1710 may be described with reference to Fig.12 The message output manager 1225 is used to execute.
[0233] At 1715, the method may include outputting a third control message that schedules additional periodic resources for at least one of the one or more UEs, wherein the additional periodic resources are different from the periodic resources. The operations of 1715 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1715 may be described with reference to Fig.12 The message output manager 1225 is used to execute.
[0234] At 1720, the method may include outputting a periodic signal based on the periodic resource outside the first activity duration, based on updating the first activity duration, updating the periodic resource, or both during the first activity duration. The operations of 1720 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1720 may be performed as described with reference to Fig.12 The described periodic signal output manager 1230 is executed.
[0235] The following provides an overview of various aspects of the disclosure:
[0236] Aspect 1: A method for performing wireless communications at a UE, the method comprising: receiving a first control message identifying a first discontinuous reception cycle to be used by the UE and a second discontinuous reception cycle to be used by the UE that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first activity duration and the second discontinuous reception cycle having a second activity duration; receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first activity duration; and monitoring the periodic signal during the first activity duration based at least in part on updating the first activity duration, updating the periodic resource, or both based at least in part on the periodic resource being outside the first activity duration.
[0237] Aspect 2: According to the method of aspect 1, the method further comprises: receiving an indication that the UE is to update the periodic resource of the periodic signal to overlap with the first activity duration.
[0238] Aspect 3: According to the method described in any one of Aspects 1 to 2, the method further includes: receiving one or more indications for updating the periodic resources according to a period derived from a fraction of two integers, wherein the first control message is received according to the period.
[0239] Aspect 4: According to the method described in any one of Aspects 1 to 3, the method further includes: receiving an indication for updating the periodic resources, wherein the indication is received via the first control message, and the first control message includes a wake-up signal, a downlink control information message, a medium access control-control element, or any combination thereof.
[0240] Aspect 5: According to the method described in any one of Aspects 1 to 4, the method further includes: receiving an indication of a relationship between the first discontinuous reception cycle and the periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first discontinuous reception cycle, the first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof; and updating the first activity duration, updating the periodic resource, or both according to the relationship between the first discontinuous reception cycle and the periodic resource.
[0241] Aspect 6: According to the method described in any one of Aspects 1 to 5, the method further includes: receiving an indication of an update to the first activity duration, wherein updating the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
[0242] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method further includes: receiving an indication to monitor during the first activity duration and the third activity duration, wherein the first discontinuous reception cycle is a two-stage discontinuous reception cycle having the first activity duration and the third activity duration; and updating the first activity duration to include the first activity duration and the third activity duration.
[0243] Aspect 8: According to the method described in any one of Aspects 1 to 7, the method also includes: avoiding monitoring the periodic signal during the second activity duration based at least in part on the periodic resource being outside the second activity duration; and sending an indication to a network entity that the UE is avoiding monitoring the periodic signal.
[0244] Aspect 9: A method according to any one of Aspects 1 to 8, wherein the periodic resources to be used by the UE to monitor the periodic signal include one or more of channel state information-reference signal resources, search space sets, semi-persistent scheduling resources, configuration grant resources or sounding reference signal resources.
[0245] Aspect 10: The method according to any one of aspects 1 to 9, wherein the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a system frame number, or any combination thereof.
[0246] Aspect 11: A method for performing wireless communications at a network entity, the method comprising: outputting a first control message identifying a first discontinuous reception cycle to be used by one or more user equipments (UEs) and a second discontinuous reception cycle to be used by the one or more UEs that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first activity duration and the second discontinuous reception cycle having a second activity duration; outputting a second control message scheduling periodic resources to be used by the one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first activity duration; and outputting the periodic signal during the first activity duration based at least in part on updating the first activity duration, updating the periodic resources, or both based at least in part on the periodic resources being outside the first activity duration.
[0247] Aspect 12: The method according to aspect 11, wherein updating the periodic resources comprises: outputting a third control message for scheduling additional periodic resources for at least one UE among the one or more UEs, wherein the additional periodic resources are different from the periodic resources.
[0248] Aspect 13: According to the method according to any one of aspects 11 to 12, the method further includes: outputting an indication that at least one UE among the one or more UEs is to update the periodic resource of the periodic signal to overlap with the first activity duration.
[0249] Aspect 14: According to the method described in any one of Aspects 11 to 13, the method further includes: outputting one or more indications for updating the periodic resources according to a period derived from a fraction of two integers, wherein the first control message is output according to the period.
[0250] Aspect 15: According to the method described in any one of Aspects 11 to 14, the method further includes: outputting an indication for updating the periodic resources, wherein the indication is output via the first control message, and the first control message includes a wake-up signal, a downlink control information message, a medium access control-control element, or any combination thereof.
[0251] Aspect 16: According to the method described in any one of Aspects 11 to 15, the method also includes: outputting an indication of the relationship between the first discontinuous reception cycle and the periodic resource, wherein the relationship corresponds to the period of the periodic resource, the start time of the first discontinuous reception cycle, the first activity duration, the time difference between the periodic resource and the first activity duration, or any combination thereof.
[0252] Aspect 17: According to the method described in any one of Aspects 11 to 16, the method further includes: outputting an indication of an update to the first activity duration, wherein the update to the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
[0253] Aspect 18: According to the method described in any one of Aspects 11 to 17, the method further includes: outputting an indication of monitoring during the first activity duration and the third activity duration, wherein the first discontinuous reception cycle is a two-stage discontinuous reception cycle having the first activity duration and the third activity duration.
[0254] Aspect 19: According to the method according to any one of aspects 11 to 18, the method also includes: obtaining an indication that at least one UE among the one or more UEs is avoiding monitoring the periodic signal.
[0255] Aspect 20: A method according to any one of Aspects 11 to 19, wherein the periodic resources to be used by the one or more UEs to monitor the periodic signal include one or more of channel state information-reference signal resources, search space sets, semi-persistent scheduling resources, configuration grant resources, or sounding reference signal resources.
[0256] Aspect 21: The method according to any one of aspects 11 to 20, wherein the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a system frame number, or any combination thereof.
[0257] Aspect 22: An apparatus for performing wireless communications at a UE, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 10.
[0258] Aspect 23: An apparatus for wireless communication at a UE, the apparatus comprising at least one component for performing the method according to any one of aspects 1 to 10.
[0259] Aspect 24: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 10.
[0260] Aspect 25: An apparatus for wireless communication at a network entity, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 11 to 21.
[0261] Aspect 26: An apparatus for wireless communication at a network entity, the apparatus comprising at least one component for performing the method according to any one of aspects 11 to 21.
[0262] Aspect 27: A non-transitory computer-readable medium storing a code for wireless communication at a network entity, the code comprising instructions executable by a processor to perform the method according to any one of aspects 11 to 21.
[0263] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and that other implementations are possible. Furthermore, aspects from two or more methods may be combined in a method.
[0264] Although 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 much of the description, the techniques described herein may also be applicable to networks other than 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.
[0265] The information and signals described herein may be represented using any of a variety of different technologies and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.
[0266] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed using a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof 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. The 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).
[0267] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. When implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of the present 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 a combination of any of these items. Features that implement the functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations.
[0268] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that promotes computer program to transfer from one position to another position.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.By way of example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage device, disk storage device or other magnetic storage device, or can be used for carrying or storing desired program code parts and any other non-transient medium that can be accessed by general or special-purpose computer or general or special-purpose processor in the form of instruction or data structure.In addition, any connection is appropriately referred to as computer-readable medium.For example, if software is sent from website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer-readable medium. Disks and optical disks as used herein include CDs, laser optical disks, optical optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks. Disks can reproduce data magnetically, and optical disks can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.
[0269] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, 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 (i.e., A and B and C). Moreover, as used herein, the phrase "based on" 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, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."
[0270] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database or other data structure), ascertaining, and the like. Also, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Also, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.
[0271] 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 to distinguish between the similar components. If only the first reference label is used in the specification, the description may apply to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.
[0272] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "advantageous over other examples." The specific embodiments include 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.
[0273] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent 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. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for wireless communication at a user equipment (UE), the method comprising: receiving a first control message identifying a first discontinuous reception cycle to be used by the UE and a second discontinuous reception cycle to be used by the UE that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first activity duration and the second discontinuous reception cycle having a second activity duration; receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first activity duration; as well as The periodic signal is monitored during the first activity duration based at least in part on the periodic resource being outside of the first activity duration, based at least in part on updating the first activity duration, updating the periodic resource, or both.
2. The method according to claim 1, further comprising: An indication is received that the UE is to update the periodic resource of the periodic signal to overlap with the first activity duration.
3. The method according to claim 1, further comprising: One or more indications for updating the periodic resource are received according to a period derived from a fraction of two integers, wherein the first control message is received according to the period.
4. The method according to claim 1, further comprising: An indication for updating the periodic resource is received, wherein the indication is received via the first control message, and the first control message includes a wake-up signal, a downlink control information message, a medium access control-control element, or any combination thereof.
5. The method according to claim 1, further comprising: receiving an indication of a relationship between the first discontinuous reception cycle and the periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first discontinuous reception cycle, the first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof; as well as The first activity duration is updated, the periodic resource is updated, or both are updated according to the relationship between the first discontinuous reception cycle and the periodic resource.
6. The method according to claim 1, further comprising: An indication of an update of the first activity duration is received, wherein updating the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
7. The method according to claim 1, further comprising: receiving an indication to monitor during the first activity duration and a third activity duration, wherein the first discontinuous reception cycle is a two-phase discontinuous reception cycle having the first activity duration and the third activity duration; as well as The first activity duration is updated to include the first activity duration and the third activity duration.
8. The method according to claim 1, further comprising: refraining from monitoring the periodic signal during the second activity duration based at least in part on the periodic resource being outside of the second activity duration; as well as An indication is sent to a network entity that the UE is refraining from monitoring the periodic signal.
9. The method according to claim 1, wherein the periodic resources to be used by the UE to monitor the periodic signal include one or more of channel state information-reference signal resources, search space sets, semi-persistent scheduling resources, configuration grant resources or sounding reference signal resources.
10. The method of claim 1, wherein the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a system frame number, or any combination thereof.
11. A method for wireless communication at a network entity, the method comprising: outputting a first control message identifying a first discontinuous reception cycle to be used by one or more user equipments (UEs) and a second discontinuous reception cycle to be used by the one or more UEs that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first active duration and the second discontinuous reception cycle having a second active duration; Outputting a second control message for scheduling periodic resources to be used by the one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first activity duration; as well as The periodic signal is output during the first activity duration based at least in part on the periodic resource being outside of the first activity duration, based at least in part on updating the first activity duration, updating the periodic resource, or both.
12. The method of claim 11, wherein updating the periodic resource comprises: A third control message is outputted to schedule additional periodic resources for at least one UE among the one or more UEs, wherein the additional periodic resources are different from the periodic resources.
13. The method according to claim 11, further comprising: Outputting an indication that at least one of the one or more UEs is to update the periodic resource of the periodic signal to overlap with the first activity duration.
14. The method according to claim 11, further comprising: One or more indications for updating the periodic resource are output according to a period derived from a fraction of two integers, wherein the first control message is output according to the period.
15. The method according to claim 11, further comprising: Outputting an indication for updating the periodic resource, wherein the indication is output via the first control message, and the first control message includes a wake-up signal, a downlink control information message, a medium access control-control element, or any combination thereof.
16. The method according to claim 11, further comprising: Outputting an indication of a relationship between the first discontinuous reception cycle and the periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first discontinuous reception cycle, the first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof.
17. The method according to claim 11, further comprising: An indication of an update of the first activity duration is output, wherein the update of the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
18. The method according to claim 11, further comprising: An indication of monitoring during the first activity duration and a third activity duration is output, wherein the first discontinuous reception cycle is a two-stage discontinuous reception cycle having the first activity duration and the third activity duration.
19. The method according to claim 11, further comprising: An indication is obtained that at least one of the one or more UEs is avoiding monitoring the periodic signal.
20. The method of claim 11, wherein the periodic resources to be used by the one or more UEs to monitor the periodic signal include one or more of a channel state information-reference signal resource, a search space set, a semi-persistent scheduling resource, a configuration grant resource, or a sounding reference signal resource.
21. The method of claim 11, wherein the periodic resource corresponds to a period associated with an integer value, one or more rational numbers, a timing reference value corresponding to a system frame number, or any combination thereof.
22. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receiving a first control message identifying a first discontinuous reception cycle to be used by the UE and a second discontinuous reception cycle to be used by the UE that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first activity duration and the second discontinuous reception cycle having a second activity duration; receiving a second control message identifying a periodic resource to be used by the UE to monitor a periodic signal, the periodic resource being at least outside the first activity duration; as well as The periodic signal is monitored during the first activity duration based at least in part on the periodic resource being outside of the first activity duration, based at least in part on updating the first activity duration, updating the periodic resource, or both.
23. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: An indication is received that the UE is to update the periodic resource of the periodic signal to overlap with the first activity duration.
24. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: One or more indications for updating the periodic resource are received according to a period derived from a fraction of two integers, wherein the first control message is received according to the period.
25. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: An indication for updating the periodic resource is received, wherein the indication is received via the first control message, and the first control message includes a wake-up signal, a downlink control information message, a medium access control-control element, or any combination thereof.
26. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: receiving an indication of a relationship between the first discontinuous reception cycle and the periodic resource, wherein the relationship corresponds to a period of the periodic resource, a start time of the first discontinuous reception cycle, the first activity duration, a time difference between the periodic resource and the first activity duration, or any combination thereof; and The first activity duration is updated, the periodic resource is updated, or both are updated according to the relationship between the first discontinuous reception cycle and the periodic resource.
27. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: An indication of an update of the first activity duration is received, wherein updating the first activity duration includes starting a third activity duration of the periodic resource according to the indication or extending the first activity duration of the periodic resource according to the indication.
28. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: receiving an indication to monitor during the first activity duration and a third activity duration, wherein the first discontinuous reception cycle is a two-phase discontinuous reception cycle having the first activity duration and the third activity duration; and The first activity duration is updated to include the first activity duration and the third activity duration.
29. An apparatus for wireless communication at a network entity, the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: outputting a first control message identifying a first discontinuous reception cycle to be used by one or more user equipments (UEs) and a second discontinuous reception cycle to be used by the one or more UEs that is different from the first discontinuous reception cycle, the first discontinuous reception cycle having a first active duration and the second discontinuous reception cycle having a second active duration; Outputting a second control message for scheduling periodic resources to be used by the one or more UEs to monitor a periodic signal, the periodic resources being at least outside the first activity duration; as well as The periodic signal is output during the first activity duration based at least in part on the periodic resource being outside of the first activity duration, based at least in part on updating the first activity duration, updating the periodic resource, or both.
30. The apparatus of claim 29, wherein the instructions for updating the periodic resource are executable by the processor to cause the apparatus to: A third control message is outputted to schedule additional periodic resources for at least one UE among the one or more UEs, wherein the additional periodic resources are different from the periodic resources.