Radio resource management and / or cross-link interference measurement and reporting omission
By using a low-power wake-up receiver to manage RRM and CLI measurements, the method reduces power and resource consumption in wireless communications systems, addressing the inefficiencies of frequent measurements and enhancing battery life and network performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2024-10-18
- Publication Date
- 2026-04-23
AI Technical Summary
Wireless communications systems face challenges in managing power and resource consumption due to frequent RRM and CLI measurements, which are essential for network performance but consume significant energy, particularly in battery-powered devices like XR devices.
Implementing a low-power wake-up receiver (LP-WUR) to monitor for wake-up signals, allowing the main receiver (MR) to skip measurements and reporting during inactive modes, prioritizing RRM and CLI measurements only when necessary, and reducing power consumption by staying in inactive mode during non-overlapping or partially overlapping measurement occasions.
This approach reduces power and resource consumption at the UE, enhances battery life, and minimizes latency by allowing the MR to remain inactive during non-measurement periods, thereby improving overall network performance.
Smart Images

Figure CN2024125676_23042026_PF_FP_ABST
Abstract
Description
RADIO RESOURCE MANAGEMENT AND / OR CROSS-LINK INTERFERENCE MEASUREMENT AND REPORTING OMISSION
[0001] INTRODUCTION
[0002] Field of the Disclosure
[0003] Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for radio resource management (RRM) measurement and reporting and / or cross-link inference (CLI) measurement and reporting.
[0004] Description of Related Art
[0005] Wireless communications systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, or other similar types of services. These wireless communications systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available wireless communications system resources with those users.
[0006] Although wireless communications systems have made great technological advancements over many years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Accordingly, there is a continuous desire to improve the technical performance of wireless communications systems, including, for example: improving speed and data carrying capacity of communications, improving efficiency of the use of shared communications mediums, reducing power used by transmitters and receivers while performing communications, improving reliability of wireless communications, avoiding redundant transmissions and / or receptions and related processing, improving the coverage area of wireless communications, increasing the number and types of devices that can access wireless communications systems, increasing the ability for different types of devices to intercommunicate, increasing the number and type of wireless communications mediums available for use, and the like. Consequently, there exists a need for further improvements in wireless communications systems to overcome the aforementioned technical challenges and others.SUMMARY
[0007] One aspect provides a method for wireless communications by a user equipment (UE) . The method includes receiving an indication of one or more measurement occasions; and skipping performing a first skipped measurement for a first skipped measurement occasion of the one or more measurement occasions based on:a main receiver (MR) of the UE being in an inactive mode during a first MR wake-up duration that overlaps the first skipped measurement occasion in time, or less than all of the first skipped measurement occasion overlapping, in time, a second MR wake-up duration associated with a first wake-up signal (WUS) detected by the UE.
[0008] Another aspect provides a method for wireless communications by an apparatus. The method includes sending an indication of one or more measurement occasions; and performing, based on whether a WUS for a MR wake-up duration was sent, a first communication in a first skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time.
[0009] Other aspects provide: one or more apparatuses operable, configured, or otherwise adapted to perform any portion of any method described herein (e.g., such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more non-transitory, computer-readable media comprising instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform any portion of any method described herein (e.g., such that instructions may be included in only one computer-readable medium or in a distributed fashion across multiple computer-readable media, such that instructions may be executed by only one processor or by multiple processors in a distributed fashion, such that each apparatus of the one or more apparatuses may include one processor or multiple processors, and / or such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more computer program products embodied on one or more computer-readable storage media comprising code for performing any portion of any method described herein (e.g., such that code may be stored in only one computer-readable medium or across computer-readable media in a distributed fashion) ; and / or one or more apparatuses comprising one or more means for performing any portion of any method described herein (e.g., such that performance would be by only one apparatus or by multiple apparatuses in a distributed fashion) . By way of example, an apparatus may comprise a processing system, a device with a processing system, or processing systems cooperating over one or more networks. An apparatus may comprise one or more memories; and one or more processors configured to cause the apparatus to perform any portion of any method described herein. In some examples, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software.
[0010] The following description and the appended figures set forth certain features for purposes of illustration.BRIEF DESCRIPTION OF DRAWINGS
[0011] The appended figures depict certain features of the various aspects described herein and are not to be considered limiting of the scope of this disclosure.
[0012] FIG. 1 depicts an example wireless communications network.
[0013] FIG. 2 depicts an example disaggregated base station architecture.
[0014] FIG. 3 depicts aspects of network entities and a user equipment (UE) .
[0015] FIGS. 4A, 4B, 4C, and 4D depict various example aspects of data structures for a wireless communications network.
[0016] FIG. 5A depicts an example of inter-cell cross-link interference (CLI) .
[0017] FIG. 5B depicts an example of intra-cell CLI.
[0018] FIG. 5C depicts example CLI caused by different uplink and downlink slot formats for two UEs.
[0019] FIG. 6 depicts an example UE configured with a low power wake-up receiver (LP-WUR) and a main receiver (MR) .
[0020] FIG. 7 depicts a process flow for communications in a network between a network entity and a UE where the UE does not receive a low power wake-up signal (LP-WUS) and thus skips measurement and reporting.
[0021] FIG. 8 depicts a process flow for communications in a network between a network entity and a UE where the UE skips measurement and reporting for partially overlapping measurement occasions with a MR wake-up duration.
[0022] FIG. 9 depicts example time misalignments between symbols configured for CLI measurement and symbols configured for downlink reception at a UE.
[0023] FIG. 10 depicts example time misalignments between a measurement occasion and a MR wake-up duration.
[0024] FIG. 11 depicts a method for wireless communications.
[0025] FIG. 12 depicts another method for wireless communications.
[0026] FIG. 13 depicts aspects of an example communications device.
[0027] FIG. 14 depicts aspects of another example communications device.DETAILED DESCRIPTION
[0028] Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer-readable mediums for radio resource management (RRM) measurement and reporting omission and / or cross-link interference (CLI) measurement and reporting omission, such as to enable a user equipment (UE) to skip measuring and / or reporting RRM measurement (s) for one or more RRM measurement occasions and / or CLI measurement (s) for one or more CLI measurement occasions, respectively. The RRM measurement occasion (s) may correspond to RRM measurement resources configured for RRM measurement and / or RRM reporting resources configured for reporting RRM measurement (s) . The CLI measurement occasion (s) may be CLI measurement occasions corresponding to CLI measurement resources for CLI measurement and / or CLI reporting resources for reporting CLI measurement (s) . Though certain aspects are discussed with respect to RRM measurement and reporting omission and / or CLI measurement and reporting omission, it should be noted that the techniques described herein may be similarly implemented to skip other example measurement and reporting, such as for resource allocation, UE mobility, etc. Details related to RRM and CLI are provided below.
[0029] A UE may communicate using a main or first radio, referred to as a main receiver (MR) , of the UE. For example, the MR may handle uplink and downlink communications between the UE and a network entity, sidelink communications between the UE and other UE (s) , and / or the like. While the MR is referred to as a main receiver, the MR may be capable of bidirectional communication. The MR may include various transmission and reception components, such as one or more antennas, processor circuitry, a power amplifier, a low-noise amplifier, converters, and / or the like. These components may consume power in the course of operation, such as when the UE is communicating with one or more other nodes.
[0030] To save power, a UE may implement a second radio, referred to as a low power wake-up receiver (LP-WUR) . The LP-WUR may include a radio receiver circuit designed to have a lower energy consumption than the MR. The UE may use the LP-WUR to establish and / or maintain synchronization, perform measurement (s) (using a low-power synchronization signal (LP-SS) ) , and / or to detect paging. For example, when there is no data for the UE to send to or receive from a network entity, the MR of the UE may transition from an “active mode” (also referred to as an “awake state” ) to an “inactive mode” (also referred to as a “sleep state” ) . For example, transitioning to (e.g., entering) the inactive mode may involve the MR powering down one or more of the transmission and reception components, such that the component (s) are in a low-power state (e.g., such as an off state or a power saving mode) . When the MR enters the inactive mode, the LP-WUR may transition from an inactive mode to an active mode (e.g., the LP-WUR enters the active mode) . While the LP-WUR is in the active mode, the LP-WUR may monitor for low-power wakeup signals (LP-WUSs) . A LP-WUS may be sent to the UE, by a network entity, when the network entity determines that there is data to send to the UE. When a LP-WUS is detected by the LP-WUR while in the active mode, the LP-WUR may trigger the MR to wake up (e.g., exit the sleep state and transition to an active mode) and begin monitoring for the downlink data. The MR may send and / or receive data after waking up. Monitoring for LP-WUSs with the LP-WUR may beneficially consume less power compared to monitoring for downlink data with the MR, thereby reducing power consumption at the UE. Power savings may be beneficial for small form factor UEs, such as extended reality (XR) devices.
[0031] While an MR of a UE may generally stay asleep (e.g., in an inactive mode) unless an LP-WUS is detected by an LP-WUR of the UE (e.g., while in an active mode) , in certain examples, the MR of a UE may wake up (e.g., MR transitions to an active mode and the LP-WUR transitions to an inactive mode) without the LP-WUR receiving an LP-WUS. For instance, in certain examples, an MR of a UE may wake up to perform one or more measurements and report the one or more measurements to a network entity. The UE may be configured to prioritize such measurement (s) and reporting over power saving at the UE (e.g., reporting of the measurement (s) has a higher priority than achieving power saving at the UE) . For example, the UE may prioritize the one or more measurements over the inactive mode.
[0032] In some cases, these higher priority measurements performed by the UE, such as in cases where a LP-WUS is not received by the UE, may include one or more radio resource management (RRM) measurements. “RRM” refers to techniques for managing radio frequency spectrum resources (simply “radio resources” ) and radio network infrastructure within a wireless communications network. RRM techniques may aim to utilize limited radio resources and radio network infrastructure as efficiently as possible. RRM may include procedures for admission control, mobility management, power control, and resource allocation, to name a few. These procedures may beneficially help to improve capacity and / or reduce interference, such as to achieve improved wireless communications network performance.
[0033] In certain examples, RRM procedures, including those listed above, may be based on UE-reported RRM measurement (s) . For example, a UE may be configured to use certain time-frequency resources (e.g., symbols or other time-frequency resources corresponding to RRM measurement occasion (s) ) to perform RRM measurement (s) and report results of the measurement (s) to a network entity. An RRM measurement may involve measuring the strength and / or quality of a signal (e.g., a reference signal) sent to the UE. For example, the UE may use the configured communication resources to determine a reference signal received power (RSRP) , a reference signal strength indicator (RSSI) , a reference signal received quality (RSRQ) , a signal-to-noise ratio (SNR) , and / or a signal-to-interference plus noise ratio (SINR) , among others, for a received signal. The UE may report such measurement (s) to the network entity. The network entity may use the reported measurement (s) to make decisions related to UE mobility, resource allocation, modulation and coding scheme (MCS) adaptation, beamforming and / or beam tracking, UE positioning, network operation (e.g., where the RRM measurement comprises a network synchronization measurement) , and / or the like. As mentioned, the UE may be configured to perform and report such RRM measurements to the network entity even when the UE does not receive a LP-WUS, indicating to wake up the MR of the UE. For example, the MR may wake up to perform and report these RRM measurements.
[0034] In some cases, these higher priority measurements performed by the UE, such as in cases where a LP-WUS is not received by the UE, may include one or more cross-link interference (CLI) measurements. For example, a UE may be configured to use certain time-frequency resources for CLI measurement and reporting. CLI is interference caused by a transmission of one UE (referred to herein as an “aggressor UE” ) being received at another UE (referred to herein as a “victim UE” ) that is not the intended recipient of the transmission, such as depicted and described with respect to FIGS. 5A-5C. CLI may be performed and reported by a UE, to a network entity, to enable the network entity to manage interference between UEs. One example type of CLI measurement may include measuring CLI by reference to a sounding reference signal (SRS) transmission. For example, a UE may measure a RSRP of an SRS transmission as received at the UE, as a measure of CLI. Another example type of CLI measurement may include measuring CLI caused by any uplink transmission. For example, a UE may measure a RSSI of an uplink transmission as received at the UE, as a measure of CLI. In this context, there may be no dedicated transmission for an aggressor UE to transmit for a victim UE to measure CLI. In certain deployments, a UE may be configured to prioritize CLI measurement and reporting over power saving at the UE, such that the UE (e.g., an MR of the UE) performs CLI measurement and reporting using certain configured time-frequency resources irrespective of whether or not a LP-WUS was received at the UE.
[0035] As an illustrative example, a network entity may send, to a UE (e.g., including both an MR and an LP-WUR) , a configuration identifying CLI measurement occasions corresponding to time-frequency resource (s) (e.g., such as one or more symbols or slots) configured for CLI measurement and reporting. The UE may perform CLI measurement (e.g., CLI RSSI and / or CLI SRS-RSRP measurement) and reporting (e.g., sends a measurement report) for each CLI measurement occasion, even if the UE does not receive a LP-WUS. For example, when there is no data for the UE to send to or receive from the network entity, the MR of the UE may be in an inactive mode while the LP-WUR of the UE is in an active mode. The LP-WUR, while in the active mode, may monitor for LP-WUSs. An LP-WUS received by the UE may cause the MR to transition to the active mode and send and receive data during an MR wake-up duration associated with the LP-WUS. The UE may then transition back to the inactive mode after the MR wake-up duration to conserve power at the UE. If an LP-WUS, associated with an MR wake-up duration, is not received by the UE, then the UE may not wake up during the MR wake-up duration (e.g., a duration where the MR is in an active mode, such as one or more symbols or slots) unless one or more of the CLI measurement occasions occur during the MR wake-up duration. That is, the MR may transition from the inactive mode to the active mode to perform and report a CLI measurement for a CLI measurement occasion occurring during an MR wake-up duration where the MR was not triggered to wake up (e.g., no LP-WUS, associated with the MR wake-up duration, was received by the UE) . In such cases, the UE may prioritize the CLI measurement and reporting over power saving at the UE (e.g., the CLI measurement and reporting may have a higher priority) .
[0036] RRM measurement and reporting and / or CLI measurement and reporting may be energy consuming. For example, in certain examples, a network entity may configure a UE with up to 32 CLI measurement occasions for SRS-RSRP measurement and reporting and / or up to 64 CLI measurement occasions for CLI-RSSI measurement and reporting. An MR of the UE may need to be in an active mode for each CLI measurement occasion, thereby increasing power consumption at the UE. Further, these CLI measurement occasions may be used by the UE to measure CLI from up to 96 aggressor UEs, such as when the UE is located within a crowded environment. The amount of CLI measurement occasions configured at the UE combined with the number of possible aggressor UEs to measure for CLI may result in significant processing efforts at the UE (e.g., increased resource consumption, such as increased central processing unit (CPU) consumption) .
[0037] RRM measurement and reporting and / or CLI measurement and reporting, may enable efficient interference management in a wireless communications network to help improve data transmission quality, system capacity, and / or preserve cellular network performance. However, these benefits may be associated with increased power and / or resource consumption at a UE. Power and / or resource savings may be important for UEs, particularly those UEs that are battery powered and / or require battery power savings. Therefore, there is a need to reduce the power and / or resource consumption at a UE configured to perform RRM measurement and reporting and / or CLI measurement and reporting, particularly in the context of UEs equipped with an MR and an LP-WUR.
[0038] Certain aspects described herein overcome the aforementioned technical problems associated with RRM and / or CLI measurement and reporting and provide a technical benefit to the field of telecommunications. Aspects described herein provide techniques for RRM and / or CLI measurement omission and / or reporting omission, such as to enable a UE to skip measuring and / or reporting measurement (s) for one or more configured RRM measurement occasions and / or one or more CLI measurement occasions, respectively.
[0039] For example, one or more RRM measurement occasions may be used by the UE to perform RRM measurement (s) and / or reporting of RRM measurement (s) . Aspects described herein may enable a UE to skip performing and / or reporting RRM measurement (s) , to a network entity, for one or more of the RRM measurement occasions. A UE skipping an RRM measurement may be referred to as the UE omitting an RRM measurement. Similarly, a UE skipping reporting of an RRM measurement may be referred to as the UE omitting reporting of the RRM measurement.
[0040] Similarly, one or more CLI measurement occasions may be used by the UE to perform CLI measurement (s) and / or reporting of CLI measurement (s) . Aspects described herein may enable a UE to skip performing and / or reporting CLI measurement (s) , to a network entity, for one or more of the CLI measurement occasions. A UE skipping a CLI measurement may be referred to as the UE omitting a CLI measurement. Similarly, a UE skipping reporting of a CLI measurement may be referred to as the UE omitting reporting of the CLI measurement.
[0041] Two scenarios where RRM measurement and reporting omission and / or CLI measurement and reporting omission may be permitted are described herein. For example, a UE may be configured to perform and report one or more RRM measurements on (e.g., during) RRM measurement occasion (s) . In a first example scenario, the UE may skip performing and / or reporting one or more RRM measurements on an RRM measurement occasion based on the RRM measurement occasion overlapping, in time, an MR wake-up duration associated with an LP-WUS that was not received by the UE. For example, the UE may receive no LP-WUS to trigger an MR of the UE to wake up for an associated MR wake-up duration, such as to monitor for downlink data. Accordingly, the MR of the UE may remain in an inactive mode during the MR wake-up duration. The MR, in the inactive mode, may not perform the RRM measurement and / or reporting on the RRM measurement occasion overlapping the MR wake-up duration. Thus, the RRM measurement and / or reporting may be skipped for the RRM measurement occasion. Similarly, where the UE is configured to perform and report one or more CLI measurements on (e.g., during CLI measurement occasion (s) , the UE may skip performing and / or reporting one or more CLI measurements on a CLI measurement occasion based on the CLI measurement occasion overlapping, in time, an MR wake-up duration associated with an LP-WUS that was not received by the UE.
[0042] In a second example scenario, the UE may skip performing and / or reporting one or more RRM measurements on at least one of the RRM measurement occasion (s) based on the RRM measurement occasion partially overlapping, in time, an MR wake-up duration associated with an LP-WUS that was received by the UE. For example, the UE may receive an LP-WUS, thereby triggering an MR of the UE to wake up for an associated MR wake-up duration, such as to monitor for downlink data. The MR, while in the active mode, may perform RRM measurement and reporting for RRM measurement occasion (s) fully overlapping the MR wake-up duration, and may not perform RRM measurement and / or reporting for the RRM measurement occasion that only partially overlaps the MR wake-up duration. A UE may achieve incremental power savings from not staying awake and / or not waking up earlier to perform RRM measurement and / or reporting for a non-overlapped portion (e.g., remainder) of an RRM measurement occasion. An RRM measurement occasion may partially overlap an MR wake-up duration where less than all of the RRM measurement occasion overlaps the MR wake-up duration.
[0043] Similarly, the UE may skip performing and / or reporting one or more CLI measurements on at least one of the CLI measurement occasion (s) based on the CLI measurement occasion partially overlapping, in time, an MR wake-up duration associated with an LP-WUS that was received by the UE. An RRM measurement occasion and / or a CLI measurement occasion may partially overlap an MR wake-up duration based on time misalignment between the RRM measurement occasion and the MR wake-up duration and / or the CLI measurement occasion and the MR wake-up duration, respectively, as depicted and described with respect to FIGS. 9 and 10.
[0044] In certain aspects, RRM and / or CLI measurement and reporting has a higher priority than uplink and / or downlink communication between a UE a network entity. For example, a UE may not be expected to transmit uplink communications and / or receive downlink communications on symbols on which the UE performs (or is configured to perform) RRM measurement and reporting, as in symbols of RRM measurement occasion (s) , and / or CLI measurement and reporting, as in symbols of CLI measurement occasion (s) . However, when RRM and / or CLI measurement and reporting is skipped for a measurement occasion, during at least one of the two aforementioned scenarios, the UE may perform the overlapping uplink and / or downlink communication.
[0045] Certain techniques for RRM and / or CLI measurement and / or reporting omission (e.g., skipping) described herein may provide various beneficial technical effects and / or advantages. The techniques for RRM and / or CLI measurement and / or reporting omission may enable improved wireless communications performance, such as reduced power and / or resource consumption at a UE, as well as, in some cases, reduced communications latency. In certain aspects, the reduced power and / or resource consumption at the UE may be attributable to the ability of an MR of the UE to remain in an inactive mode when no LP-WUS is received for an associated MR wake-up duration overlapping an RRM measurement occasion and / or a CLI measurement occasion (e.g., the first scenario described above) . In certain aspects, the reduced power and / or resource consumption at the UE may be attributable to the ability of an MR of the UE to skip performing RRM measurement and / or reporting for an RRM measurement occasion partially overlapping with an MR wake-up duration that the MR is triggered to wake up and monitor for downlink data (e.g., the second scenario described above) . In certain aspects, the reduced power and / or resource consumption at the UE may be attributable to the ability of an MR of the UE to skip performing CLI measurement and / or reporting for a CLI measurement occasion partially overlapping with an MR wake-up duration that the MR is triggered to wake up and monitor for downlink data (e.g., also the second scenario described above) . In both scenarios, the MR of the UE may remain in an inactive mode for a longer period of time, thereby saving power at the UE and reducing resource consumption for performing RRM and / or CLI measurement and reporting. This is different than conventional methods, described above, where the MR of the UE wakes up for all RRM measurement occasions and / or all CLI measurement occasions irrespective of whether or not an LP-WUS is received. In certain aspects, the reduced communications latency may be attributable to the ability of the UE to perform uplink and / or downlink communications in RRM measurement occasions that are skipped by the UE (e.g., where no RRM measurement and reporting occurs) . Similarly, in certain aspects, the reduced communications latency may be attributable to the ability of the UE to perform uplink and / or downlink communications in CLI measurement occasions that are skipped by the UE (e.g., where no CLI measurement and reporting occurs) .
[0046] Introduction to Wireless Communications Networks
[0047] The techniques and methods described herein may be used for various wireless communications networks. While aspects may be described herein using terminology commonly associated with 3G, 4G, 5G, 6G, and / or other generations of wireless technologies, aspects of the present disclosure may likewise be applicable to other communications systems and standards not explicitly mentioned herein.
[0048] FIG. 1 depicts an example of a wireless communications network 100, in which aspects described herein may be implemented.
[0049] Generally, wireless communications network 100 includes various network entities (alternatively, network elements or network nodes) . A network entity is generally a communications device and / or a communications function performed by a communications device (e.g., a user equipment (UE) , a base station (BS) , a component of a BS, a server, etc. ) . As such communications devices are part of wireless communications network 100, and facilitate wireless communications, such communications devices may be referred to as wireless communications devices. For example, various functions of a network as well as various devices associated with and interacting with a network may be considered network entities. Further, wireless communications network 100 may include terrestrial aspects, such as ground-based network entities (e.g., BSs 102) , and non-terrestrial aspects (also referred to herein as non-terrestrial network entities) . A non-terrestrial network entity may include satellite 140, which may be an example of an aerial or space-borne platform. In some examples, satellite 140 may include one or more network entities on-board (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and UEs. For example, satellite 140 may be implemented according to a regenerative architecture (also referred to as a non-transparent architecture) , and a gNB implemented at satellite 140 may implement higher-layer network functions. As another example, satellite 140 may be implemented according to a transparent architecture, and may perform a physical or other lower-layer repeater function for UEs and a network entity (such as a gateway associated with the satellite 140) .
[0050] In the depicted example, wireless communications network 100 includes BSs 102, UEs 104, and one or more core networks, such as an Evolved Packet Core (EPC) 160 or a 5G Core (5GC) network 190, which interoperate to provide communications services over various communications links, including wired and wireless links. In some aspects, a core network, such as a 6G core, may implement a converged service-based architecture. In a converged service-based architecture, functions traditionally split between a core network (such as 5GC network 190) and a radio access network (RAN) (such as BS 102) may be implemented at a single network entity. For example, a mobility network entity may perform both core network functions and RAN functions related to mobility of UEs 104 attached to the wireless communications network 100. “Network entity” can refer to a BS 102, a network entity of EPC 160 or 5GC network 190, or a network entity of a converged service-based architecture.
[0051] FIG. 1 depicts various example UEs 104. UE 104 may include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA) , a satellite radio, a Global Positioning System device, a multimedia device, a video device, a digital audio player, a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, an Internet of Things (IoT) device, an always on (AON) device, an edge processing device, a data center, or another similar device. A UE 104 may also be referred to as a mobile device, a wireless device, a station, a mobile station, a subscriber station, a mobile subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a remote device, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, and others.
[0052] BSs 102 wirelessly communicate with (e.g., transmit signals to or receive signals from) UEs 104 via communications links 120. A communications link 120 between a BS 102 and a UE 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to a BS 102 and / or downlink (DL) (also referred to as forward link) transmissions from a BS 102 to a UE 104. A communications link 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity in various aspects.
[0053] A BS 102 may include a NodeB, an enhanced NodeB (eNB) , a next generation enhanced NodeB (ng-eNB) , a next generation NodeB (gNB or gNodeB) , an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a transmission reception point (TRP) , a radio unit (RU) , a distributed unit (DU) , or the like. A given BS 102 may provide communications coverage for a coverage area 110, which may sometimes be referred to as a cell, and which may overlap another coverage area 110 (e.g., a small cell provided by a BS 102′) may have a coverage area 110′that overlaps the coverage area 110 of a macro cell) . A BS 102 may, for example, provide communications coverage for a macro cell (covering a relatively large geographic area) , a pico cell (covering a relatively smaller geographic area, such as a sports stadium) , a femto cell (covering a relatively smaller geographic area, such as a home) , or another type of cell.
[0054] The term “cell” may refer to a portion, partition, or segment of wireless communication coverage served by a network entity within a wireless communications network 100. A cell may have geographic characteristics, such as a geographic coverage area, as well as radio frequency characteristics, such as time and / or frequency resources dedicated to the cell. For example, a specific geographic coverage area may be covered by multiple cells employing different frequency resources (e.g., bandwidth parts) and / or different time resources. As another example, a specific geographic coverage area may be covered by a single cell. In some contexts (e.g., a carrier aggregation scenario and / or multi-connectivity scenario) , the terms “cell” or “serving cell” may refer to or correspond to a specific carrier frequency (e.g., a component carrier) used for wireless communications, and a “cell group” may refer to or correspond to multiple carriers used for wireless communications. As examples, in a carrier aggregation scenario, a UE may communicate on multiple component carriers corresponding to multiple (serving) cells in the same cell group, and in a multi-connectivity (e.g., dual connectivity) scenario, a UE may communicate on multiple component carriers corresponding to multiple cell groups.
[0055] While BSs 102 are depicted in various aspects as unitary communications devices, BSs 102 may be implemented in various configurations. For example, one or more components of a base station may be disaggregated, including a central unit (CU) , one or more DUs, one or more RUs, a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) , or a Non-Real Time (Non-RT) RIC, to name a few examples. In another example, various aspects of a base station may be virtualized. A base station (e.g., BS 102) may include components that are located at a single physical location or components located at various physical locations. In examples in which a base station includes components that are located at various physical locations, the various components may each perform functions such that, collectively, the various components achieve functionality that is similar to a base station that is located at a single physical location. Implementing a base station in this fashion may provide efficiency gains by enabling cloud-based implementation of certain (e.g., non-time-sensitive) higher-layer functions while physical-layer or other lower-layer functions can be implemented at or in proximity to a geographic coverage area of a corresponding cell. In some aspects, a base station including components that are located at various physical locations may be referred to as having a disaggregated RAN architecture, such as an Open RAN (O-RAN) or Virtualized RAN (VRAN) architecture. FIG. 2 depicts and describes an example disaggregated RAN architecture.
[0056] Different BSs 102 within wireless communications network 100 may also be configured to support different radio access technologies, such as 3G, 4G, 5G, and / or 6G. For example, BSs 102 configured for 4G Long Term Evolution (LTE) (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) ) may interface with the EPC 160 through first backhaul links 132 (e.g., an S1 interface) . BSs 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN) ) may interface with 5GC 190 through second backhaul links 184. BSs 102 may communicate directly or indirectly (e.g., through the EPC 160 or the 5GC 190) with each other over third backhaul links 134 (e.g., an X2 or XN interface) , which may be wired or wireless.
[0057] Wireless communications network 100 may subdivide the electromagnetic spectrum into various classes, bands, channels, or other features. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, or a subband. For example, the Third Generation Partnership Project (3GPP) currently defines Frequency Range 1 (FR1) as including 410 MHz –7125 MHz, which is often referred to (interchangeably) as “Sub-6 GHz” . Similarly, 3GPP currently defines Frequency Range 2 (FR2) as including 24, 250 MHz –71, 000 MHz, which is sometimes referred to (interchangeably) as a “millimeter wave” ( “mmW” or “mmWave” ) . In some cases, FR2 may be further defined in terms of sub-ranges, such as a first sub-range FR2-1 including 24, 250 MHz –52, 600 MHz and a second sub-range FR2-2 including 52, 600 MHz –71, 000 MHz. A base station configured to communicate using mmWave / near mmWave radio frequency bands (e.g., a mmWave base station such as BS 180) may utilize beamforming (e.g., 182) with a UE (e.g., 104) to improve path loss and range.
[0058] A communications links 120 may be through one or more carriers, which may have different bandwidths (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, and / or other bandwidths) , and which may be aggregated in various aspects. Carriers may or may not be adjacent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL than for UL) .
[0059] Communications using higher frequency bands may have higher path loss and a shorter range compared to lower frequency communications. Accordingly, certain base stations (e.g., BS 180 in FIG. 1) may utilize beamforming (indicated by reference number 182) with a UE 104 to improve path loss and range. For example, BS 180 and the UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate the beamforming. In some cases, BS 180 may transmit a beamformed signal to UE 104 in one or more transmit directions 182′. UE 104 may receive the beamformed signal from the BS 180 in one or more receive directions 182″. UE 104 may also transmit a beamformed signal to the BS 180 in one or more transmit directions 182″. BS 180 may also receive the beamformed signal from UE 104 in one or more receive directions 182′. BS 180 and UE 104 may perform beam training to determine suitable receive and transmit directions for each of BS 180 and UE 104. Notably, the transmit and receive directions for BS 180 may or may not be the same. Similarly, the transmit and receive directions for UE 104 may or may not be the same.
[0060] Wireless communications network 100 may include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communications links 154 in, for example, a 2.4 GHz and / or 5 GHz unlicensed frequency spectrum.
[0061] Certain UEs 104 may communicate with each other using device-to-device (D2D) communications link 158. In some examples, D2D communications link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) . D2D communications link 158 may be implemented using a variety of technologies, such as a radio access technology (e.g., 5G, ProSe sidelink) , a WiFi technology, a Bluetooth technology, or the like.
[0062] EPC 160 may include various functional components, such as a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and / or a Packet Data Network (PDN) Gateway 172. MME 162 may be in communication with a Home Subscriber Server (HSS) 174. MME 162 is a control node that processes signaling between the UEs 104 and the EPC 160. Generally, MME 162 provides bearer and connection management.
[0063] Generally, user Internet protocol (IP) packets are transferred through Serving Gateway 166. Serving gateway 166 is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation as well as other functions. PDN Gateway 172 and BM-SC 170 are connected to IP Services 176, which may include, for example, the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a Packet Switched (PS) streaming service, and / or other IP services.
[0064] BM-SC 170 may provide functions for MBMS user service provisioning and delivery. BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and / or may be used to schedule MBMS transmissions. MBMS Gateway 168 may be used to distribute MBMS traffic to the BSs 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and / or may be responsible for session management (start / stop) and for collecting eMBMS related charging information.
[0065] 5GC 190 may include various functional components, such as an Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. AMF 192 may be in communication with Unified Data Management (UDM) 196.
[0066] AMF 192 is a control node that processes signaling between UEs 104 and the 5GC 190. AMF 192 provides, for example, quality of service (QoS) flow and session management.
[0067] IP packets are transferred through UPF 195, which is connected to the IP Services 197. UPF 195 may provide UE IP address allocation as well as other functions for 5GC 190. IP Services 197 may include, for example, the Internet, an intranet, an IMS, a PS streaming service, and / or other IP services.
[0068] In various aspects, a network entity or network node can be implemented as an aggregated base station, as a disaggregated base station, a component of a base station, an integrated access and backhaul (IAB) node, a relay node, a core network entity, or a sidelink node, to name a few examples.
[0069] FIG. 2 depicts an example disaggregated base station 200 architecture. The disaggregated base station 200 architecture may include one or more CUs 210 that can communicate directly with a core network 220 or other CUs 210 via a backhaul link (such as backhaul link 134) , or indirectly with the core network 220 through one or more disaggregated base station units (such as a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) 225 via an E2 link, a Non-Real Time (Non-RT) RIC 215 associated with a Service Management and Orchestration (SMO) Framework 205, or both) . A CU 210 may communicate with one or more DUs 230 via respective midhaul links, such as an F1 interface. The DUs 230 may communicate with one or more RUs 240 via respective fronthaul links. The RUs 240 may communicate with respective UEs 104 via one or more radio frequency (RF) access links (such as communication link 120) . In some implementations, a UE 104 may be simultaneously served by multiple RUs 240.
[0070] Each of the units, e.g., the CUs 210, the DUs 230, the RUs 240, as well as the Near-RT RICs 225, the Non-RT RICs 215 and the SMO Framework 205, may include one or more interfaces or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or a processor or controller providing instructions to the interfaces of the units, can be configured to communicate with one or more of the other units via the transmission medium. For example, the units can include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other units. Additionally or alternatively, the units can include a wireless interface, which may include a receiver, a transmitter, or a transceiver (such as a RF transceiver) , configured to receive or transmit signals, or both, over a wireless transmission medium.
[0071] In some aspects, the CU 210 may host one or more higher layer control functions. Such control functions can include radio resource control (RRC) , packet data convergence protocol (PDCP) , service data adaptation protocol (SDAP) , or the like. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 210. The CU 210 may be configured to handle user plane functionality (e.g., Central Unit –User Plane (CU-UP) ) , control plane functionality (e.g., Central Unit –Control Plane (CU-CP) ) , or a combination thereof. In some implementations, the CU 210 can be logically split into one or more CU-UP units and one or more CU-CP units. The CU-UP unit can communicate bidirectionally with the CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 210 can be implemented to communicate with the DU 230 for network control and signaling.
[0072] The DU 230 may be or correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 240. In some aspects, the DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a functional split, such as those defined by the 3rd Generation Partnership Project (3GPP) . In some aspects, the DU 230 may further host one or more low PHY layers. Each layer (or module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 230, or with the control functions hosted by the CU 210.
[0073] Lower-layer functionality can be implemented by one or more RUs 240. In some deployments, an RU 240, controlled by a DU 230, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (such as performing fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like) , or both, based at least in part on the functional split, such as a lower layer functional split. In such an architecture, the RU (s) 240 can be implemented to handle over the air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control and user plane communications with the RU(s) 240 can be controlled by the corresponding DU 230. In some scenarios, this configuration can enable the DU (s) 230 and the CU 210 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0074] The SMO Framework 205 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 205 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements which may be managed via an operations and maintenance interface (such as an O1 interface) . For virtualized network elements, the SMO Framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface) . Such virtualized network elements can include, but are not limited to, CUs 210, DUs 230, RUs 240 and Near-RT RICs 225. In some implementations, the SMO Framework 205 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-eNB) 211, via an O1 interface. Additionally, in some implementations, the SMO Framework 205 can communicate directly with one or more DUs 230 and / or one or more RUs 240 via an O1 interface. The SMO Framework 205 also may include a Non-RT RIC 215 configured to support functionality of the SMO Framework 205.
[0075] The Non-RT RIC 215 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence / Machine Learning (AI / ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 225. The Non-RT RIC 215 may be coupled to or communicate with (such as via an A1 interface) the Near-RT RIC 225. The Near-RT RIC 225 may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 210, one or more DUs 230, or both, as well as an O-eNB, with the Near-RT RIC 225.
[0076] In some implementations, to generate AI / ML models to be deployed in the Near-RT RIC 225, the Non-RT RIC 215 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 225 and may be received at the SMO Framework 205 or the Non-RT RIC 215 from non-network data sources or from network functions. In some examples, the Non-RT RIC 215 or the Near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 215 may monitor long-term trends and patterns for performance and employ AI / ML models to perform corrective actions through the SMO Framework 205 (such as reconfiguration via O1) or via creation of RAN management policies (such as A1 policies) .
[0077] FIG. 3 depicts aspects of network entities 300 and 302 and a UE 304.
[0078] FIG. 3 includes a first network entity 300 and a second network entity 302. In some examples, first network entity 300 may be an example of a CU 210 or a DU 230. In some examples, second network entity 302 may be an example of a DU 230 or an RU 240. First network entity 300 and second network entity 302 may communicate with one another via a communications link, such as a midhaul link. In some examples, first network entity 300 and second network entity 302 may be implemented at a same BS (e.g., BS 102) . For example, first network entity 300 and second network entity 302 may be co-located. In some other examples, first network entity 300 may be implemented separately from second network entity 302. For example, first network entity 300 may be implemented as a function (e.g., one or more processes) running on a server, such as in a cloud (e.g., a public or private cloud) . As another example, first network entity 300 may be implemented as a virtual computing instance (e.g., virtual machine, container, etc. ) or as a physical server.
[0079] First network entity 300 and second network entity 302 each include a processing system 306, illustrated as “processing system 306a” at first network entity 300 and “processing system 306b” at second network entity 302. For example, first network entity 300 and second network entity 302 may include one or more chips, system-on-chips (SoCs) , system-in-packages (SiPs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system 306. A processing system 306 includes one or more processors 308 (illustrated as “processor (s) 308a” and “processor (s) 308b” ) and one or more memories 310 (illustrated as “memory (ies) 310a” and “memory (ies) 310b” ) coupled to the one or more processors 308. The one or more processors 308 may include one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) and / or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASIC) , programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs) ) , or other discrete gate or transistor logic or circuitry (any one or more of which may be generally referred to herein individually as a “processor” or collectively as “the processor” or “the processor circuitry” ) . One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set. In some other examples, each of a group of processors may be configurable or configured to perform a same set of functions.
[0080] In some aspects, the processing system 306 may perform processing (such as digital signal processing) of data, control information, or signals received or transmitted by a network entity. For example, the processing system 306 may include a coder, a decoder, a multiplexer, a demultiplexer, a transmit MIMO processor, a transmit processor, a receive processor, a receive MIMO detector, an automatic gain control component, or the like.
[0081] The one or more memories 310 may include one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory” or “the memory circuitry” ) . The one or more memories 310 may store data and program code for first network entity 300 and / or second network entity 302.
[0082] As further shown, second network entity 302 includes one or more transceivers 312 (illustrated as “transceiver (s) 312” ) . The one or more transceivers 312 may perform processing related to implementing physical layer (e.g., radio, air interface) communication with other devices such as UE 304. The one or more transceivers 312 may include one or more radio frequency (RF) components, such as an RF transceiver, a front-end module (e.g., an RF front-end (RFFE) ) , or the like. For example, the one or more transceivers 312 may include a transmit path (also referred to as a transmit chain) , a receive path (also referred to as a receive chain) , and / or an interface with one or more antennas 314.
[0083] The one or more antennas 314 may perform wireless transmission and reception of signals. The one or more antennas 314 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of FIG. 3.
[0084] UE 304 may be an example of UE 104. As shown, UE 304 includes a processing system 316. For example, UE 304 may include one or more chips, SoCs, SiPs, chipsets, packages, or devices that individually or collectively constitute or comprise a processing system 316. A processing system 316 includes one or more processors 318, and one or more memories 320 coupled to the one or more processors 318. Further, UE 304 includes one or more antennas 322, one or more transceivers 324, and / or other components that enable wireless transmission and reception of data.
[0085] The one or more processors 318 may include one or multiple processors, microprocessors, processing units (such as CPUs, GPUs, NPUs (also referred to as neural network processors or DLPs) and / or DSPs) , processing blocks, ASICs, PLDs (such as FPGAs) , or other discrete gate or transistor logic or circuitry (any one or more of which may be generally referred to herein individually as a “processor” or collectively as “the processor” or “the processor circuitry” ) . One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. In some aspects, the processing system 316 may perform processing (such as digital signal processing) of data, control information, or signals received or transmitted by a network entity. For example, the processing system 316 may include a coder, a decoder, a multiplexer, a demultiplexer, a transmit MIMO processor, a transmit processor, a receive processor, a receive MIMO detector, an automatic gain control component, or the like.
[0086] As shown, in some examples, the one or more processors 318 may include one or more modems 326, one or more application processors (APs) 328, one or more AI processors 330, a combination thereof, and / or another form of processor.
[0087] The one or more modems 326 may include a digital signal processor that converts information into a waveform for analog signal transmission (e.g., via modulation) and / or converts the waveform of a received signal into information (e.g., via demodulation) . The one or more modems 326 may process information or waveforms in connection with signal transmission or reception. For example, the one or more modems 326 may include a coder, a decoder, a multiplexer, a demultiplexer, a transmit MIMO processor, a transmit processor, a receive processor, a receive MIMO detector, an automatic gain control component, or the like.
[0088] The one or more APs 328 may perform processing relating to an operating system and / or a higher layer application of the UE 304. For example, the one or more APs 328 may provide a higher-level operating system (HLOS) , software, audio or video processing, graphics processing, or the like. In some examples, the one or more APs 328 may be a data source (e.g., for transmissions) or a data sink (e.g., for receptions) .
[0089] The one or more transceivers 324 may perform processing related to implementing physical layer (e.g., radio, air interface) communication with other devices such as other UEs 304 or second network entity 302. The one or more transceivers 324 may include one or more RF components, such as an RF transceiver, a front-end module (e.g., an RFFE) , or the like. For example, the one or more transceivers 324 may include a transmit path (also referred to as a transmit chain) , a receive path (also referred to as a receive chain) , and / or an interface with one or more antennas 322. The one or more transceivers 324 may also include subcomponents, such as a main receiver (MR, not illustrated) for receiving data and further include, to save power, a LP-WUR, as described elsewhere herein.
[0090] The one or more antennas 322 may perform wireless transmission and reception of signals. The one or more antennas 322 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of FIG. 3.
[0091] For an example downlink transmission by second network entity 302, the processing system 306 (e.g., a transmit processor) may receive data and / or control information. The control information may be for the physical broadcast channel (PBCH) , physical control format indicator channel (PCFICH) , physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) , physical downlink control channel (PDCCH) , group common PDCCH (GC PDCCH) , and / or others. The data may be for the physical downlink shared channel (PDSCH) , in some examples.
[0092] The processing system 306 (e.g., a transmit processor) may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The processing system 306 may also generate reference symbols, such as for the primary synchronization signal (PSS) , secondary synchronization signal (SSS) , PBCH demodulation reference signal (DMRS) , or channel state information reference signal (CSI-RS) .
[0093] The processing system 306 (e.g., a TX MIMO processor) may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and / or the reference symbols, if applicable, and may provide output symbol streams to one or more modulators of the processing system 306. The one or more modulators may process one or more respective output symbol streams to obtain an output sample stream. The one or more transceivers 312 may process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Second network entity 302 may transmit the downlink signal via the one or more antennas 314.
[0094] In order to receive the downlink transmission at UE 304 (or a sidelink transmission from another UE) , the one or more antennas 322 may receive the downlink signal and may provide received signals to the one or more transceivers 324. The one or more transceivers 324 may condition (e.g., filter, amplify, downconvert, and digitize) the received signals to obtain input samples. The one or more transceivers 324 and / or the processing system 316 may further process the input samples to obtain received symbols.
[0095] The processing system 316 (e.g., modem 326, an RX MIMO detector) may obtain the received symbols, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The processing system 316 (e.g., a modem 326, a receive processor) may process (e.g., de-interleave and decode) the detected symbols. The processing system 316 may provide decoded data for the UE 304 (e.g., to an AP 328) and / or decoded control information (e.g., to a controller / processor of the processing system 316) .
[0096] For an example uplink transmission or a sidelink transmission from UE 304, the processing system 316 (e.g., modem 326, a transmit processor) may receive and process data and / or control information to obtain a set of symbols for transmission. The data may be for the physical uplink shared channel (PUSCH) , and may be received from a data source such as the AP 328. The control information may be for the physical uplink control channel (PUCCH) , and may be received, for example, from a controller / processor of the processing system 316. The processing system 316 (e.g., a modem 326, the transmit processor) may also generate reference symbols for a reference signal (e.g., for a sounding reference signal (SRS) , a demodulation reference signal, a phase tracking reference signal, or the like) . In some examples, the symbols and / or reference signals may be precoded by the processing system 316 (e.g., modem 326, a TX MIMO processor) , further processed by the one or more transceivers 324 (e.g., for SC-FDM) , and transmitted to second network entity 302.
[0097] At second network entity 302, the uplink signals from UE 304 may be received by the one or more antennas 314, conditioned by the one or more transceivers 312 (e.g., filtered, amplified, downconverted, and digitized) , detected (e.g., by the processing system 306b such as a modem and / or an RX MIMO detector) , and further processed by the processing system 306b (e.g., a modem and / or a receive processor) to obtain decoded data and control information sent by UE 304. The processing system 306b may provide the decoded data and the decoded control information (such as to a controller / processor of the processing system 306b, an AP, first network entity 300, or another entity) .
[0098] In various aspects, a wireless communication device, such as first network entity 300, second network entity 302, BS 102, UE 104, or UE 304 may be described as sending, transmitting, obtaining, or receiving various types of data associated with the methods described herein. In these contexts, “transmitting” or “sending” may refer to various mechanisms of outputting data, such as outputting data from a processing system, one or more memories, one or more transceivers, one or more antennas, and / or other aspects described herein. For example, “sending” or “transmitting” by a device may include sending (such as wirelessly, via a wired connection, or both) to a recipient directly or via another device. As another example, “sending” or “transmitting” may include sending internally to a device (such as the UE 304, first network entity 300, or second network entity 302) by a process to memory. “Receiving” or “obtaining” may refer to various mechanisms of obtaining data, such as obtaining data from the processing system, one or more memories, one or more transceivers, one or more antennas, and / or other aspects described herein. For example, “receiving” or “obtaining” by a device may include obtaining (such as wirelessly, via a wired connection, or both) from a recipient directly or via another device. As another example, “receiving” or “obtaining” may include obtaining internally to a device (such as the UE 304, first network entity 300, or second network entity 302) by a process from memory. As used herein, “communicating” by a device may include sending, obtaining, receiving, and / or transmitting a communication. “Communicating” can refer to communication with another device or internal communication of the device.
[0099] In various aspects, the processing system 306 or the processing system 316 may include one or more AI processors (such as AI processor 330 of the processing system 316) . An AI processor may perform AI processing. The AI processor may include AI accelerator hardware or circuitry such as one or more neural processing units (NPUs) , one or more neural network processors, one or more tensor processors, one or more deep learning processors, etc. As an example, the AI processor may perform AI-based beam management, AI-based channel state feedback (CSF) , AI-based antenna tuning, and / or AI-based positioning (e.g., non-line of sight positioning prediction) . In some cases, at the UE 104, the AI processor may process feedback generated by the UE 304 (e.g., CSF) using hardware accelerated AI inferences and / or AI training. In some cases, at the second network entity 302, the AI processor may decode compressed CSF from the UE 304, for example, using a hardware accelerated AI inference associated with the CSF. In certain cases, the AI processor may perform certain RAN-based functions including, for example, network planning, network performance management, energy-efficient network operations, etc.
[0100] FIGS. 4A, 4B, 4C, and 4D depict aspects of data structures for a wireless communications network, such as wireless communications network 100 of FIG. 1.
[0101] FIG. 4A is a diagram 400 illustrating an example of a first subframe within a 5G (e.g., 5G NR) frame structure, FIG. 4B is a diagram 430 illustrating an example of DL channels within a 5G subframe, FIG. 4C is a diagram 450 illustrating an example of a second subframe within a 5G frame structure, and FIG. 4D is a diagram 480 illustrating an example of UL channels within a 5G subframe.
[0102] Wireless communications systems may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on the uplink and downlink. Such systems may also support half-duplex operation using time division duplexing (TDD) . OFDM and single-carrier frequency division multiplexing (SC-FDM) partition the system bandwidth (e.g., as depicted in FIGS. 4B and 4D) into multiple orthogonal subcarriers. One or more subcarriers may be modulated with data. Modulation symbols may be sent in the frequency domain with OFDM and / or in the time domain with SC-FDM.
[0103] In some examples, a wireless communications frame structure may be implemented using frequency division duplexing (FDD) . In FDD, some subcarriers may be configured for DL communication, and other subcarriers (which may overlap in time with the DL subcarriers) may be configured for UL communication. In some other examples, wireless communications frame structures may be implemented using time division duplexing (TDD) . In TDD, for a particular set of subcarriers, some subframes are configured for DL communication and other subframes are configured for UL communication.
[0104] In FIGs. 4A and 4C, the wireless communications frame structure is implemented using TDD. “D” indicates DL time resources, “U” indicates UL time resources, and “X” indicates flexible time resources for use or later reconfiguration for either DL or UL communication. UEs may be configured with a slot format through a received slot format indicator (SFI) (dynamically through DL control information (DCI) , or semi-statically / statically through radio resource control (RRC) signaling) . In the depicted examples, a 10 ms frame is divided into 10 equally sized 1 ms subframes. Each subframe may include one or more time slots. In some examples, each slot may include 12 or 14 symbols, depending on the cyclic prefix (CP) type (e.g., 12 symbols per slot for an extended CP or 14 symbols per slot for a normal CP) . Subframes may also include mini-slots, which generally have fewer symbols than an entire slot. Other wireless communications technologies may have a different frame structure and / or different channels.
[0105] In certain aspects, the number of slots within a subframe (e.g., a slot duration in a subframe) is based on a numerology. A numerology may define a frequency domain subcarrier spacing and symbol duration, and may be configured for a given bandwidth part, carrier, cell, or network entity. In certain aspects, given a numerology μ, there are 2μ slots per subframe. Thus, numerologies (μ) 0 to 6 may allow for 1, 2, 4, 8, 16, 32, and 64 slots, respectively, per subframe. In some cases, an extended CP (e.g., 12 symbols per slot) may be used with a specific numerology, such as numerology μ = 2 allowing for 4 slots per subframe. The subcarrier spacing and symbol length / duration are a function of the numerology. The subcarrier spacing may be equal to 2μ×15 kHz. As an example, the numerology μ=0 corresponds to a subcarrier spacing of 15 kHz, and the numerology μ=6 corresponds to a subcarrier spacing of 960 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIGS. 4A, 4B, 4C, and 4D provide an example of a slot format having 14 symbols per slot (e.g., a normal CP) and a numerology μ=2 with 4 slots per subframe. In such a case, the slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.
[0106] As depicted in FIGS. 4A, 4B, 4C, and 4D, a resource grid may be used to represent the frame structure. Each time slot includes a resource block (RB) (also referred to as a physical RB (PRB) ) that extends across, for example, 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs) . An RE may include a single subcarrier in the frequency domain and a single symbol in the time domain. The number of bits carried by each RE depends on the modulation scheme including, for example, quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM) .
[0107] As illustrated in FIG. 4A, some of the REs carry reference (pilot) signals (shown as “RS” ) for a UE (e.g., UE 104 of FIGS. 1 and 3) . The RS may include a demodulation RS (DMRS) and / or a channel state information reference signals (CSI-RS) for channel estimation at the UE. The RS may additionally or alternatively include a beam measurement RS (BRS) , a beam refinement RS (BRRS) , and / or a phase tracking RS (PT-RS) .
[0108] FIG. 4B illustrates an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) , each CCE including, for example, nine RE groups (REGs) , each REG including, for example, four consecutive REs in an OFDM symbol.
[0109] A primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE (e.g., 104 of FIGS. 1 and 3) to determine subframe / symbol timing and a physical layer identity.
[0110] A secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing.
[0111] Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI) . Based on the PCI, the UE can determine the locations of the aforementioned DMRS. The physical broadcast channel (PBCH) , which carries a master information block (MIB) , may be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (SSB) , and in some cases, referred to as a synchronization signal block (SSB) . The MIB provides a number of RBs in the system bandwidth and a system frame number (SFN) . The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs) , and / or paging messages.
[0112] As illustrated in FIG. 4C, some of the REs carry DMRS (indicated as “R” for one particular configuration, but other DMRS configurations are possible) for channel estimation at the base station. The UE may transmit DMRS for the PUCCH and DMRS for the PUSCH. The PUSCH DMRS may be transmitted, for example, in the first one or two symbols of the PUSCH. The PUCCH DMRS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used. UE 104 may transmit sounding reference signals (SRS) . The SRS may be transmitted, for example, in the last symbol of a subframe. The SRS may have a comb structure, and a UE may transmit SRS on one of the combs. The SRS may be used by a base station for channel quality estimation to enable frequency-dependent scheduling on the UL.
[0113] FIG. 4D illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI) , such as scheduling requests, a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , and HARQ ACK / NACK feedback. The PUSCH carries data, and may additionally be used to carry a buffer status report (BSR) , a power headroom report (PHR) , and / or UCI.
[0114] Aspects Related to CLI
[0115] CLI, also referred to as inter-UE interference, is interference measured at a first UE (e.g., a victim UE) based on transmissions by a second UE (e.g., an aggressor UE) that are not intended for the first UE.
[0116] FIG. 5A depicts an example of inter-cell CLI. In particular, FIG. 5A depicts a first UE 504a in communication with a network entity, such as a BS 502a, in a cell 510a and a second UE 504b in communication with another network entity, such as BS 502b, in a cell 510b. Reference to a UE 504 herein may refer individually to any of first UE 504a or second UE 504b. Reference to a BS 502 herein may refer individually to any of BS 502a or 502b. Further, though certain aspects are discussed with respect to a BS, it should be noted that other suitable network entities may perform the operations discussed with respect to BS 502. Each of the UEs 504 may be an example of UE 104 depicted and described with respect to FIG. 1 or the UE 304 depicted and described with respect to FIG. 3. Each of the BSs 502 may be an example of the BS 102 depicted and described with respect to FIG. 1, a disaggregated base station depicted and described with respect to FIG. 2, or the first network entity 300 or the second network entity 302 depicted and described with respect to FIG. 3. Each of the cells 510 may be an example of the coverage area 110 depicted and described with respect to FIG. 1.
[0117] As shown, signals transmitted by first UE 504a to BS 502a in cell 510a may be received at second UE 504b in cell 510b. Such signals transmitted by first UE 504a may interfere with signals transmitted by BS 502b to second UE 504b, thereby causing inter-cell CLI at second UE 504b. In such a scenario, first UE 504a may be referred to as the aggressor UE as it causes the interference, while second UE 504b may be referred to as the victim UE as it experiences the interference.
[0118] For example, first UE 504a may be configured (e.g., by BS 502a) to communicate in a first slot according to a first slot format 520 shown in FIG. 5C. Further, second UE 504b may be configured (e.g., by BS 502b) to communicate in the first slot according to a second slot format. A slot format, such as slot formats 520 and 522, may indicate how each symbol within a slot (e.g., in periodically occurring slots) may be used, as in whether the symbol may be used for uplink communications (U) , downlink communications (D) , or flexible (X) (e.g., may be used for uplink or downlink communications) . For example, a flexible symbol may be subsequently reassigned for either uplink or downlink communication. In some cases, the first slot format 520 may indicate for first UE 504a to perform uplink communications in one or more symbols of the first slot, such as in the eighth and ninth symbols of the first slot, while the second slot format 522 may indicate for second UE 504b to perform downlink communications in eighth and ninth symbols of the first slot. For example, the BSs 502a and 502b may configure different slot formats. Accordingly, the uplink communications in the eighth and ninth symbols of the first slot by first UE 504a may interfere with the downlink communications received by second UE 504b in the eighth and ninth symbols of the first slot (e.g., resulting in CLI) . Thus, flexible time division duplexing may be associated with some amount of CLI due to difficulties in or a lack of communication between BSs 502.
[0119] FIG. 5B depicts an example of intra-cell CLI. As shown, signals transmitted by first UE 504a to BS 502a in cell 510a are received at second UE 504b in cell 510a. Such signals transmitted by first UE 504a may interfere with signals transmitted by BS 502a to second UE 504b, thereby causing intra-cell CLI at second UE 504b. The cause of the interference, as discussed, may be due to first UE 504a and second UE 504b being configured to communicate in the same slot according to different slot formats, and in particular where first UE 504a is configured to transmit while second UE 504b is simultaneously configured to receive.
[0120] In certain aspects, a second UE 504b is configured to perform different types of CLI measurements. One example type of CLI measurement is to measure CLI by reference to an SRS transmission. For example, CLI at second UE 504b may be caused by transmission of SRS by first UE 504a to BS 502a, and the CLI from the transmission of the SRS may be a useful way to infer CLI caused by routine transmissions of the first UE 504a. Second UE 504b may measure, for example, an RSRP of the SRS transmission as received at second UE 504b, as a measure of CLI. Another type of CLI measurement is to measure CLI caused by any uplink transmission (e.g., PUCCH, PUSCH, SRS, etc. ) . For example, CLI at second UE 504b may be caused by transmission of an uplink transmission by first UE 504a to BS 502a. Second UE 504b may measure RSSI of the uplink transmission as received at second UE 504b, as a measure of CLI. In this context, there is no dedicated transmission for an aggressor UE to transmit for a victim UE to measure CLI.
[0121] In certain aspects, a UE 504 is configured to use one or more time-frequency resources (e.g., symbols and / or resource elements) for performing one or more types of CLI measurements. These time-frequency resources are referred to herein as CLI measurement resources and / or CLI reporting resources. For example, a network entity may send, to a UE, an indication (e.g., a CLI measurement configuration) of CLI measurement and reporting resource (s) corresponding to CLI measurement occasion (s) that may be used for performing CLI measurement and reporting. In certain aspects, the indication of the CLI measurement and reporting resources indicates one or more symbols in one or more slots for a UE to measure and report CLI measurement (s) . In certain aspects, the indication of the CLI measurement and reporting resources indicates which symbols of a slot to use to measure and report CLI measurement (s) , and a periodicity of which slots to measure and report CLI measurement (s) (e.g., every 2 slots, every 3 slots, etc. ) .
[0122] As an illustrative example, a network entity may send, to a UE, an indication of two CLI measurement occasions (e.g., each measurement occasion including multiple CLI measurement resources and CLI reporting resources, such as symbols) . The UE may perform CLI measurement and reporting in each of the two CLI measurement occasions.
[0123] In certain aspects, a UE may measure and report CLI measurement (s) based on receiving a CLI resource configuration. In certain aspects, a UE may not measure and report CLI measurement (s) if no CLI resource configuration is received at the UE. For example, the UE may not blindly detect and measure CLI measurement (s) before a network entity provides a CLI resource configuration for CLI measurement and reporting.
[0124] Similar to CLI measurement and reporting, a UE may measure and report RRM measurement (s) based on receiving an RRM resource configuration. For example, a network entity may send, to a UE, an indication (e.g., an RRM measurement configuration) of RRM measurement and reporting resource (s) corresponding to RRM measurement occasion (s) that may be used for performing RRM measurement and reporting. In certain aspects, the indication of the RRM measurement and reporting resources indicates one or more symbols in one or more slots for a UE to measure and report RRM measurement (s) . In certain aspects, the indication of the RRM measurement and reporting resources indicates which symbols of a slot to use to measure and report RRM measurement (s) , and a periodicity of which slots to measure and report RRM measurement (s) (e.g., every 2 slots, every 3 slots, etc. ) . In certain aspects, a UE may not measure and report RRM measurement (s) if no RRM resource configuration is received at the UE.
[0125] Aspects Related to Power Savings Using LP-WURs
[0126] Energy efficiency is a key consideration for communication systems to achieve sustainability and scalability of such systems. One energy-saving approach for wireless communications includes the use of an LP-WUR at a communications device (e.g., UE) to monitor for certain signals (e.g., LP-WUSs, also simply referred herein as “WUSs” ) in lieu of using a higher power MR at the communications device. In certain aspects, the LP-WUR may beneficially allow the communications device to remain in a (very) low power (or no power) state until a period of time in which a communication intended for the device is transmitted to the device.
[0127] FIG. 6 depicts an example UE 602 configured with an LP-WUR 606 and an MR 604. MR 604 is a receiver of UE 602 configured to receive downlink data from a network entity or send uplink data to a network entity when MR 604 is powered on. However, MR 604 may generally remain powered down (e.g., in an inactive mode) in the absence of scheduled downlink data to help conserve power at UE 602. UE 602 may be an example of UE 104 depicted and described with respect to FIG. 1 or the UE 304 depicted and described with respect to FIG. 3.
[0128] LP-WUR 606 enables MR 604 to remain in a low power state, and thus conserve energy. In particular, LP-WUR 506 is a relatively simpler receiver (e.g., does not include a transmitter) that may remain awake (e.g., in an active mode) continuously (or at high-frequency intervals) to monitor for an LP-WUS 608. LP-WUS 608 may be used to trigger LP-WUR 606 to wake up MR 604 of UE 602 (e.g., transition from the inactive mode to the active mode) to receive downlink data. LP-WUS 608 may be transmitted to UE 602, by a network entity, when the network entity determines that there is data to send to UE 602, which may be received by MR 604, when operating in the active mode. As used herein, a LP-WUS may be an example WUS used to activate or “wake up” an MR of a UE from a low power and / or sleep state (e.g., inactive mode) .
[0129] As described herein, in certain aspects, UE 602 may be configured to prioritize one or more RRM and / or CLI measurements and reporting over power saving at the UE, due to at least the RRM and / or CLI measurements and reporting being assigned a higher priority than power saving at the UE 602. Accordingly, UE 602 may be configured to perform and report such RRM and / or CLI measurements to a network entity even when the UE 602 does not receive an LP-WUS, such as LP-WUS 608. More specifically, MR 604 of UE 602 may transition from the inactive mode to the active mode to perform and report an RRM measurement for an RRM measurement occasion and / or a CLI measurement for a CLI measurement occasions, where the RRM measurement occasion and / or the CLI measurement occasion occur during an MR wake-up duration where MR 604 was not triggered to wake up (e.g., no LP-WUS, associated with the MR wake-up duration, received by UE 602) . Accordingly, technical problems associated with RRM and / or CLI measurement and reporting at the UE may include increased power and / or resource consumption to perform each RRM and / or CLI measurement for each configured RRM measurement occasion and / or CLI measurement occasion, respectively.
[0130] Aspects Related to RRM and / or CLI Measurement and Reporting Omission
[0131] Aspects described herein provide techniques for RRM and / or CLI measurement and / or reporting omission. For RRM measurement and / or reporting omission, a UE may perform RRM measurement and / or reporting for less than all configured RRM measurement occasions. For CLI measurement and / or reporting omission, a UE may perform CLI measurement and / or reporting for less than all configured CLI measurement occasions. As used herein, a measurement occasion, such as an RRM measurement occasion and / or a CLI measurement occasion, may include one or more of a measurement resource or a reporting resource for reporting a measurement on the measurement resource. In some aspects, an RRM measurement may be referred to simply as a measurement. In some aspects, a CLI measurement may be referred to simply as a measurement.
[0132] For example, in a first scenario, a UE may skip performing RRM and / or measurement and / or reporting for an RRM and / or CLI measurement occasion that overlaps an MR wake-up duration associated with an LP-WUS that was not received at the UE. In particular, no LP-WUS may be received at the UE to trigger an MR of the UE to transition to an active mode during the MR wake-up duration, such as to monitor for downlink data from a network entity. Thus, the MR may remain in an inactive mode for at least the duration of the MR wake-up duration and skip performing any RRM and / or CLI measurement and / or reporting that also occurs during this period of time (e.g. overlaps the MR wake-up duration) . A UE skipping an RRM measurement may be referred to as the UE omitting an RRM measurement. Similarly, a UE skipping reporting of an RRM measurement may be referred to as the UE omitting reporting of the RRM measurement. A UE skipping a CLI measurement may be referred to as the UE omitting a CLI measurement. Similarly, a UE skipping reporting of a CLI measurement may be referred to as the UE omitting reporting of the CLI measurement.
[0133] In a second scenario, a UE may skip performing RRM and / or CLI measurement and / or reporting for an RRM and / or CLI measurement occasion that partially overlaps an MR wake-up duration associated with an LP-WUS that was received at the UE. In particular, an LP-WUS may be received at the UE to trigger an MR of the UE to transition to an active mode during the MR wake-up duration, such as to monitor for downlink data from a network entity. Prior to the MR wake-up duration, however, the MR of the UE may be in an inactive mode or transitioning to the active mode. Thus, an RRM measurement occasion and / or a CLI measurement occasion that begins prior to a start of the MR wake-up duration (but partially overlaps the MR wake-up duration) may be skipped, given the MR may not have yet transitioned to the active mode. Similarly, an RRM measurement occasion and / or a CLI measurement occasion that ends after an end of the MR wake-up duration (but partially overlaps the MR wake-up duration) may be skipped, given the MR may be transitioning to the inactive mode and / or may no longer be in the active mode for performing the RRM measurement and reporting associated with the RRM measurement occasion and / or the CLI measurement and reporting associated with the CLI measurement occasion.
[0134] The first scenario is described in detail below with respect to the example method 700 of FIG. 7, while the second scenario is described in detail below with respect to the example method 800 of FIG. 8. Each scenario, while different, may result in increased power saving and / or reduced resource consumption at a UE, at least due to the omission of (1) RRM measurement and / or reporting for at least one RRM measurement occasion where the UE may have been configured to perform the RRM measurement and / or reporting and / or (2) CLI measurement and / or reporting for at least one CLI measurement occasion where the UE may have been configured to perform the CLI measurement and / or reporting.
[0135] Example Signaling for RRM and / or CLI Measurement and Reporting Omission
[0136] FIG. 7 depicts an example method 700 for communications in a network between a network entity 702 and a UE 704. In certain aspects, the network entity 702 may be an example of the BS 102 depicted and described with respect to FIG. 1, the first network entity 300 or the second network entity 302 depicted and described with respect to FIG. 3, or a disaggregated base station depicted and described with respect to FIG. 2. Similarly, the UE 704 may be an example of UE 104 depicted and described with respect to FIG. 1 or the UE 304 depicted and described with respect to FIG. 3. However, in other aspects, UE 704 may be another type of wireless communications device and network entity 702 may be another type of network entity or network node, such as those described herein. Note that any operations or signaling illustrated with dashed lines may indicate that that operation or signaling is an optional or alternative example.
[0137] In certain aspects, UE 704 is configured with an MR and an LP-WUR for increased powering savings at UE 704, similar to UE 602 depicted and described with respect to FIG. 6.
[0138] As described above, the example method 700 of FIG. 7 is used to illustrate a first scenario where measurement and reporting is skipped for measurement occasion overlapping an MR wake-up duration associated with an LP-WUS that was not received at UE 704. In certain aspects, the measurement occasion may be an RRM measurement occasion such that RRM measurement and reporting is skipped. In certain aspects, the measurement occasion may be a CLI measurement occasion such that CLI measurement and reporting is skipped.
[0139] The example method 700 begins, at 706, with network entity 702 sending, and UE 704 receiving, an indication of one or more measurement occasions. In certain aspects, the indication of the measurement occasion (s) indicates one or more symbols in one or more slots for a UE to measure and report measurement (s) . In certain aspects, the indication of the measurement occasion (s) indicates which symbols of a slot to use to measure and report measurement (s) , and a periodicity of which slots to measure and report measurement (s) (e.g., every 2 slots, every 3 slots, etc. ) .
[0140] In the example shown in FIG. 7, the indication may indicate four measurement occasions 722-1, 722-2, 722-3, and 722-4 (collectively referred to herein as “measurement occasions 722” and individually referred to herein a “measurement occasion 722” ) where UE 704 is configured to perform measurement and / or reporting of measurement (s) . Although in this example only four measurement occasions 722 may be indicated to (e.g., configured at) UE 704, in some other examples, more or less measurement occasions 722, with a same or different periodicity, may be indicated to UE 704 at 706.
[0141] In certain aspects, the measurement occasions 722 are RRM measurement occasions corresponding to RRM measurement resources and / or RRM reporting resources configured for RRM measurement and / or reporting. For example, UE 704 may be configured to perform one or more RRM measurements for each measurement occasion 722, and report such RRM measurements to network entity 702. An RRM measurement may include performing a reference signal measurement, such as determining an RSRP, an RSSI, an RSRQ, an SNR, and / or an SINR for a reference signal received during a measurement occasion 722. Reporting of an RRM measurement to network entity 702 may enable network entity 702 to make decisions related to resource allocation, UE 704 mobility, beamforming, positioning, interference, and / or synchronization, to name a few.
[0142] In certain aspects, the measurement occasions 722 are CLI measurement occasions corresponding to CLI measurement resources and / or CLI reporting resources configured for CLI measurement and / or reporting. For example, UE 704 may be configured to perform one or more CLI measurements for each measurement occasion, and report such CLI measurements to network entity 702. In certain aspects, a CLI measurement may include UE 704 measuring CLI caused by an SRS transmission. For example, a UE 704 may measure a RSRP of an SRS transmission as received at UE 704 on a CLI measurement occasion, as a measure of CLI. In certain aspects, a CLI measurement may include UE 704 measuring CLI caused by any uplink transmission. For example, UE 704 may measure a RSSI of an uplink transmission as received at UE 704 on a CLI measurement occasion, as a measure of CLI. In certain aspects, a CLI measurement may include UE 704 measuring CLI from an aggressor UE, not based on a dedicated transmission from the aggressor UE. In certain aspects, CLI reporting may include reporting one or more CLI measurements on a CLI measurement occasion 722, such as via sending one or more measurement reports to network entity 702. As used herein, a measurement occasion, such as a CLI measurement occasion or an RRM measurement occasion, may include one or more of a measurement resource or a reporting resource for a measurement on the measurement resource.
[0143] In certain aspects, the measurement occasions 722 may be configured at UE 704 for layer 1 (L1) CLI measurement and reporting. In certain aspects, the measurement occasions 722 may be configured at UE 704 for layer 3 (L3) CLI measurement and reporting. In certain aspects, the measurement occasions 722 may be configured at UE 704 for LI and L3 CLI measurement and reporting.
[0144] As shown in FIG. 7, measurement occasions 722-1, 722-2, and 722-3 may overlap an MR wake-up duration 714. MR wake-up duration 714 may be a first duration where the MR of UE 704 is expected to wake up (e.g., transition from an inactive mode to an active mode) if UE 704 receives, from network entity 702, a LP-WUS associated with MR wake-up duration 714 (though note that, in FIG. 7, no LP-WUS associated with MR wake-up duration 714 is received) . Network entity 702 may send an LP-WUS associated with MR wake-up duration 714 if network entity 702 determines that there is data to send to UE 704 (though that does not occur in FIG. 7) . For example, MR wake-up duration 714 may include a first PDCCH monitoring duration where UE 704 monitors for downlink transmissions (e.g., PDCCH) from network entity 702.
[0145] Further, as shown in FIG. 7, measurement occasion 722-4 may overlap an MR wake-up duration 718. MR wake-up duration 718 may be a second duration where the MR of UE 704 is expected to wake up (e.g., transition from an inactive mode to an active mode) when UE 704 receives, from network entity 702, a LP-WUS 708 associated with MR wake-up duration 718. Network entity 702 may send the LP-WUS 708 associated with MR wake-up duration 718 when network entity 702 determines that there is data to send to UE 704. For example, MR wake-up duration 718 may include a second PDCCH monitoring duration where UE 704 monitors for downlink transmissions (e.g., PDCCH) from network entity 702. The LP-WUS 708 may be associated with the MR wake-up duration 718 in that the LP-WUS 708 causes the UE 704 to wake up the MR during the MR wake-up duration 718.
[0146] After receiving the indication at 706, the LP-WUR of UE 704 may be operating in an active mode, while the MR of UE 704 may be operating in an inactive mode. While the LP-WUR is in the active mode, the LP-WUR may monitor for LP-WUSs. For example, prior to measurement occasion 722-1, the LP-WUR of UE 704 may be in an active mode, monitoring for an LP-WUS associated with MR wake-up duration 714.
[0147] In this example, an LP-WUR of UE 704 may not receive an LP-WUS associated with MR wake-up duration 714 (e.g., may not receive an LP-WUS prior to the start of MR wake-up duration 714) . For example, network entity 702 may not send an LP-WUS associated with MR wake-up duration 714 because there is no data to be sent to UE 704 during MR wake-up duration 714. Thus, UE 704 may not receive the LP-WUS associated with MR wake-up duration 714.
[0148] Because no LP-WUS is received at UE 704, an MR of UE 704 may remain in an inactive mode while the LP-WUS of UE 704 may remain in the active mode (e.g., since no LP-WUS triggers the MR of UE 704 to wake up) , such as during MR wake-up duration 714. While the MR of UE 704 is in the inactive mode, UE 704 may skip / omit performing and measurements and / or reporting for measurement occasions 722-1, 722-2, and 722-3. For example, UE 704 may not be able to receive any signals (e.g., reference signals) from network entity 702 during measurement occasions 722-1, 722-2, and 722-3 due the MR operating in the inactive mode. Thus, because UE 704 cannot receive the signals, UE 704 may not perform any measurements during these measurement occasions 722-1, 722-2, and 722-3. Further, UE 704 may not report any measurements during measurement occasions 722-1, 722-2, and 722-3. Thus, the UE 704 saves power. As used herein, each of measurement occasions 722-1, 722-2, and 722-3 may be referred to as a “skipped measurement occasion. ”
[0149] In one example, measurements occasions 722-1, 722-2, and 722-3 are RRM measurement occasions configured at UE 704 for RRM measurement and reporting. Thus, based on UE 704 not receiving the LP-WUS associated with MR wake-up duration 714, UE 704 skips RRM measurement and reporting for measurement occasions 722-1, 722-2, and 722-3.
[0150] In another example, measurements occasions 722-1, 722-2, and 722-3 are CLI measurement occasions configured at UE 704 for L1 CLI measurement and reporting. Thus, based on UE 704 not receiving the LP-WUS associated with MR wake-up duration 714, UE 704 skips L1 CLI measurement and reporting for measurement occasions 722-1, 722-2, and 722-3. In another example, measurements occasions 722-1, 722-2, and 722-3 are CLI measurement occasions configured at UE 704 for L3 CLI measurement and reporting. Thus, based on UE 704 not receiving the LP-WUS associated with MR wake-up duration 714, UE 704 skips L3 CLI measurement and reporting for measurement occasions 722-1, 722-2, and 722-3. In another example, measurements occasions 722-1, 722-2, and 722-3 are CLI measurement occasions configured at UE 704 for L1 and L3 CLI measurement and reporting. Thus, based on UE 704 not receiving the LP-WUS associated with MR wake-up duration 714, UE 704 skips L1 and L3 CLI measurement and reporting for measurement occasions 722-1, 722-2, and 722-3.
[0151] In certain aspects, when measurement and reporting is skipped for measurement occasions 722-1, 722-2, and 722-3, UE 704 may perform any uplink and / or downlink communication (s) 730 overlapping measurement occasion 722-1, measurement occasion 722-2, and / or measurement occasion 722-3. For example, uplink and / or downlink transmission 730 between UE 704 and network entity 702 may be performed on symbols that overlap with a skipped measurement occasion 722 that overlaps with the MR wake-up duration 714 where the MR of UE 704 is not triggered to wake up (e.g., based on UE 704 not receiving the LP-WUS) . The blocking due to the higher priority of the skipped measurement occasion 722 to uplink and / or downlink transmissions 730 may be lifted because UE omits performing measurement and reporting in the skipped measurement occasion 722. Sending an uplink transmission or receiving a downlink transmission in a skipped measurement occasion 722 may reduce latency with respect to such transmission (s) based on earlier transmission and / or reception of these transmission (s) . In certain aspects, latency reduction may be beneficial for XR-like services.
[0152] In the example in FIG. 7, UE 704 may send, to network entity 702, an uplink transmission or receive, from network entity 702, a downlink transmission, overlapping in time with measurement occasion 722-2. Though FIG. 7 shows UE 704 sending / receiving an uplink / downlink transmission 730 in measurement occasion 722-2, in some other examples, UE 704 may send / receive more than one uplink / downlink transmission in measurement occasion 722-2 and / or send / receive uplink / downlink transmission (s) in measurement occasion 722-1 and / or measurement occasion 722-3.
[0153] After MR wake-up duration 714, UE 704 may again monitor for LP-WUSs. The LP-WUR of UE 704 may be in an active mode and the MR of UE 704 may be in an inactive mode when monitoring the LP-WUSs. In this example, based on monitoring for LP-WUSs, UE 704 may receive an LP-WUS at 708. The LP-WUS may be associated with MR wake-up duration 718. Network entity 702 may send, to UE 704, the LP-WUS, at 708, when network entity 702 determines that data is to be sent to UE 704 during MR wake-up duration 718, and more specifically, during the second PDCCH monitoring duration occurring during MR wake-up duration 718.
[0154] Based on receiving the LP-WUS at 708, the LP-WUR of UE 704 may enter a sleep state by transitioning from the active mode to an inactive mode. Simultaneously, the MR of UE 704 may wake up by transitioning from the inactive mode to the active mode, such as to monitor for downlink data transmissions from network entity 702 during MR wake-up duration 718. In certain aspects, the MR of UE 704 may be expected to wake up within a maximum MR wake-up time duration 716, starting from when the LP-WUS is received at UE 704. For example, the MR of UE 704 may be expected to wake up within X OFDM symbols after receiving the LP-WUS (e.g., the maximum MR wake-up time duration 716 = X OFDM symbols, where X is an integer greater than zero) . In certain aspects, the maximum MR wake-up time duration 716 may be reported to network entity 702, by UE 704, via capability signaling for different subcarrier spacings (SCSs) and / or carriers (not shown in FIG. 7) . For example, the UE 704 may report a capability for X that is specific to an SCS or a carrier.
[0155] While the MR of UE 704 is operating in the active mode during MR wake-up duration 718, UE 704 may monitor for downlink transmissions from network entity 702. Further, UE 704 may perform measurement and reporting for any measurement occasions that overlap MR wake-up duration 718. For example, UE 704 may perform the measurement and reporting associated with measurement occasion 722-4. UE 704 may measure a signal sent to UE 704, from network entity 702 at 710, during measurement occasion 722-4. UE 704 may also report, at 712, this measurement to network entity 702 during measurement occasion 722-4.
[0156] After MR wake-up duration 718, the MR of UE 704 may go to sleep by transitioning from the active mode to the inactive mode. Further, in some examples, the LP-WUR of UE 704 may wake up by transitioning from the inactive mode to the active mode.
[0157] Note that the example method 700 illustrated in FIG. 7 is described herein to facilitate an understanding of RRM and / or CLI measurement and reporting omission, and aspects of the present disclosure may be performed in various manners via alternative or additional signaling and / or operations. In certain aspects, the operations and / or signaling of FIG. 7 may occur in an order different from that described or depicted, and various actions, operations, and / or signaling may be added, omitted, or combined.
[0158] FIG. 8 depicts an example method 800 for communications in a network between a network entity 802 and a UE 804. In certain aspects, the network entity 802 may be an example of the BS 102 depicted and described with respect to FIG. 1, the first network entity 300 or the second network entity 302 depicted and described with respect to FIG. 3, or a disaggregated base station depicted and described with respect to FIG. 2. Similarly, the UE 804 may be an example of UE 104 depicted and described with respect to FIG. 1 or the UE 304 depicted and described with respect to FIG. 3. However, in other aspects, UE 804 may be another type of wireless communications device and network entity 802 may be another type of network entity or network node, such as those described herein. Note that any operations or signaling illustrated with dashed lines may indicate that that operation or signaling is an optional or alternative example.
[0159] In certain aspects, UE 804 is configured with an MR and an LP-WUR for increased powering savings at UE 804, similar to UE 602 depicted and described with respect to FIG. 6.
[0160] As described above, the example method 800 of FIG. 8 is used to illustrate a second scenario where measurement and reporting is skipped for a measurement occasion partially overlapping an MR wake-up duration associated with an LP-WUS that was received at UE 804. In certain aspects, the measurement occasion may be an RRM measurement occasion such that RRM measurement and reporting is skipped. In certain aspects, the measurement occasion may be a CLI measurement occasion such that CLI measurement and reporting is skipped.
[0161] The example method 800 begins, at 806, with network entity 802 sending, and UE 804 receiving, an indication of one or more measurement occasions 822. In the example shown in FIG. 8, the indication may indicate four measurement occasions 822-1, 822-2, 822-3, and 822-4 (collectively referred to herein as “measurement occasions 822” and individually referred to herein a “measurement occasion 822” ) where the UE 804 is configured to perform measurement and / or reporting of measurement (s) . Although in this example only four measurement occasions 822 may be indicated to (e.g., configured at) UE 804, in some other examples, more or less measurement occasions 822, with a same or different periodicity, may be indicated to UE 804 at 806.
[0162] In certain aspects, the measurement occasions 822 are RRM measurement occasions corresponding to RRM measurement resources and / or RRM reporting resources configured for RRM measurement and / or reporting. In certain aspects, the measurement occasions 822 are CLI measurement occasions corresponding to CLI measurement resources and / or CLI reporting resources configured for CLI measurement and reporting.
[0163] As shown in FIG. 8, measurement occasions 822-1, 822-4 may partially overlap an MR wake-up duration 818, and measurement occasions 822-2, 822-3 may completely overlap the MR wake-up duration 818. Specifically, less than all of measurement occasion 822-1 may overlap MR wake-up duration 818. For example, a beginning portion (e.g., spanning symbol (s) or less than one symbol) of measurement occasion 822-2 may not overlap MR wake-up duration 818 in time. Further, less than all of measurement occasion 822-4 may overlap MR wake-up duration 818. For example, an end portion (e.g., spanning symbol (s) or less than one symbol) of measurement occasion 822-2 may not overlap MR wake-up duration 818 in time. All of measurement occasion 822-2 and measurement occasion 822-3, however, may overlap MR wake-up duration 818.
[0164] MR wake-up duration 818 may be a duration where the MR of UE 704 is expected to wake up (e.g., transition from an inactive mode to an active mode) when UE 804 receives, from network entity 802, a LP-WUS at 808 associated with MR wake-up duration 818. Network entity 802 may send the LP-WUS at 808 associated with MR wake-up duration 818 when network entity 802 determines that there is data to send to UE 804. For example, MR wake-up duration 818 may include a PDCCH monitoring duration where UE 804 monitors for downlink transmissions (e.g., PDCCH) from network entity 802.
[0165] Some time after receiving the indication at 806, the LP-WUR of UE 804 may be operating in an active mode, while the MR of UE 804 may be operating in an inactive mode. While the LP-WUR is in the active mode, the LP-WUR may monitor for LP-WUSs. In this example, based on monitoring for LP-WUSs, UE 804 may receive an LP-WUS at 808. The LP-WUS may be associated with MR wake-up duration 818 (e.g., may trigger the MR wake-up duration, may be received on an occasion that is associated with MR wake-up duration 808) . Network entity 802 may send, to UE 804, the LP-WUS, at 808, when network entity 802 determines that data is to be sent to UE 804 during MR wake-up duration 818, and more specifically, during the PDCCH monitoring duration occurring during MR wake-up duration 818.
[0166] Based on receiving the LP-WUS at 808, the LP-WUR of UE 804 may enter a sleep state by transitioning from the active mode to an inactive mode. Simultaneously, the MR of UE 804 may wake up by transitioning from the inactive mode to the active mode, such as to monitor for downlink data transmissions from network entity 802 during MR wake-up duration 818. In certain aspects, the MR of UE 804 may be expected to wake up within a maximum MR wake-up time duration 816, starting from when the LP-WUS is received at UE 804.
[0167] While the MR of UE 804 is operating in the active mode during MR wake-up duration 818, UE 804 may monitor for downlink transmissions from network entity 802. Further, UE 804 may perform measurement and / or reporting for any measurement occasions that completely (or fully) overlap MR wake-up duration 818. For example, UE 804 may perform the measurement and reporting associated with measurement occasion 822-2 and measurement occasion 822-3 because all of measurement occasion 822-2 and measurement occasion 822-3 overlap MR wake-up duration 818. UE 804 may measure a signal sent to UE 804, from network entity 802 at 809, during measurement occasion 822-2. UE 804 may also report, at 810, this measurement to network entity 802 during measurement occasion 822-4. Similarly, UE 804 may measure a signal sent to UE 804, from network entity 802 at 811, during measurement occasion 822-3. UE 804 may also report, at 812, this measurement to network entity 802 during measurement occasion 822-4.
[0168] However, UE 804 may not perform the measurement and / or reporting associated with measurement occasion 822-1 and measurement occasion 822-4. For example, UE 804 may skip performing the measurement and reporting on measurement occasions 822-1 and measurement occasion 822-2 because less than all of measurement occasion 822-1 and less than all of measurement occasion 822-4 overlap MR wake-up duration 818. As used herein, each of measurement occasions 822-1 and 822-4 may be referred to as a “skipped measurement occasion. ”
[0169] In certain aspects, when measurement and reporting is skipped for measurement occasions 822-1, 822-4, UE 804 may perform any uplink and / or downlink communication (s) 814 overlapping measurement occasion 822-1 and / or measurement occasion 822-3. Put differently, uplink and / or downlink transmission between UE 804 and network entity 802 may be performed on symbols that overlap with a skipped measurement occasion 822 that does not fully overlap (e.g., partially overlaps, only partially overlaps) with the MR wake-up duration 818 in which the MR of UE 804 is triggered to wake up (e.g., based on UE 704 receiving the LP-WUS at 808) . The blocking due to the higher priority of the skipped measurement occasion 822 to uplink and / or downlink transmissions may be lifted because UE 804 omits performing measurement and reporting in the skipped measurement occasion 822.
[0170] In the example in FIG. 8, UE 804 may send, to network entity 802, an uplink transmission 814 or receive, from network entity 802, a downlink transmission 814, overlapping in time with measurement occasion 822-4. Though FIG. 8 shows UE 804 sending / receiving an uplink / downlink transmission 814 in measurement occasion 822-4, in some other examples, UE 804 may send / receive more than one uplink / downlink transmission in measurement occasion 822-2 and / or send / receive uplink / downlink transmission (s) in measurement occasion 822-1.
[0171] After MR wake-up duration 818, the MR of UE 704 may go to sleep by transitioning from the active mode to the inactive mode. Further, the LP-WUR of UE 804 may wake up by transitioning from the inactive mode to the active mode.
[0172] Note that the example method 800 illustrated in FIG. 8 is described herein to facilitate an understanding of RRM and / or CLI measurement and reporting omission, and aspects of the present disclosure may be performed in various manners via alternative or additional signaling and / or operations. In certain aspects, the operations and / or signaling of FIG. 8 may occur in an order different from that described or depicted, and various actions, operations, and / or signaling may be added, omitted, or combined.
[0173] In certain aspects, a measurement occasion, such as one of measurement occasions 822-1 or 822-4 in FIG. 8, may only partially overlap an MR wake-up duration where an MR of a UE is triggered to wake up by a LP-WUS, such as MR wake-up duration 818 in FIG. 8, based on a time misalignment between (1) symbols of the measurement occasion and (2) symbols configured for downlink signals.
[0174] For example, a UE (e.g., a victim UE) may be configured to perform two operations. For a first operation, the UE may be configured to measure CLI from another UE (e.g., an aggressor UE) . In a second operation, the UE may be configured to receive LP-WUSs and / or other downlink signals from a network entity. Time misalignment between the first operation and the second operation may lead to partial overlapping between a CLI measurement occasion and an MR wake-up duration in which an MR of the UE is triggered to wake up. In particular, given that only nearby UEs may receive / measure CLI from one another, propagation delay for CLI between an aggressor UE and a victim UE may be negligible. Further, as specified in 3GPP specifications (e.g., such as in 3GPP technical specification (TS) 38.133) , the aggressor UE and the victim UE are assumed to have similar uplink time advance (TA) (e.g., assumed to be located a similar distance away from a network entity) . Accordingly, a starting time of a CLI measurement (e.g., arrival of CLI at a victim UE) at a victim UE may be ahead of a downlink signal arrival time at the victim UE.
[0175] For example, an aggressor UE and a victim UE may be located close to one another. Thus, the signal for CLI from the aggressor UE to the victim UE may be assumed to have no latency. Further, communication of uplink signals from each of the aggressor UE and the victim UE to a network entity may use TA, such that signals from each UE (and / or other UEs that use the same TA) arrive at the network entity at almost the same time point. Because the aggressor UE and the victim UE are located near one another, it may be assumed that the aggressor UE and the victim UE each use the same TA. For the victim UE, a signal for CLI measurement from the aggressor UE may not consider TA. Thus, when a network entity sends a downlink signal to the victim UE, considering an uplink TA, there may be misalignment between the downlink signal from the network entity and the signal for CLI measurement from the aggressor UE.
[0176] To simplify UE implementation, instead of using the actual CLI arrival time, 3GPP standards (e.g., 3GPP TS 38.133) may consider the worst-case range of time misalignment to define the overlapping conditions between symbols of a CLI measurement occasion and symbols configured downlink transmission to the UE.
[0177] FIG. 9 depicts example maximum time misalignments 900, 950 between symbols configured for CLI measurement and symbols configured for downlink reception at a UE. Maximum time misalignments 900, 950 may represent the worst-case ranges for time misalignment, such as maximum time misalignment of one OFDM symbol or two OFDM symbols.
[0178] As shown in FIG. 9, a first maximum time misalignment 900, considered by 3GPP specifications, between a starting symbol of symbols configured for downlink transmission (s) and a starting symbol of symbols of a CLI measurement occasion may be one symbol (e.g., one OFDM symbol) . As such, the time misalignment range considered in 3GPP standards may be from zero to one symbol. This maximum time misalignment 900 of one symbol may be considered for FR1 with 15 kilohertz (kHZ) SCS and 30 kHZ SCS. This maximum time misalignment 900 of one symbol may also be considered for FR2 with 60 kHZ SCS.
[0179] As shown at 950 in FIG. 9, a second maximum time misalignment 900, considered by 3GPP standards, between a starting symbol of symbols configured for downlink transmission (s) and a starting symbol of symbols of a CLI measurement occasion may be two symbols (e.g., two OFDM symbols) . As such, the time misalignment range considered in 3GPP standards may be from zero to two symbols. This maximum time misalignment 950 of two symbols may be considered for FR1 with 60 kHZ SCS. This maximum time misalignment 950 may also be considered for FR2 with 120 kHZ SCS.
[0180] Based on the first maximum time misalignment 900 and / or the second maximum time misalignment 950, a CLI measurement occasion partially overlapping an MR wake-up duration may take various forms. For example, different time misalignments between a CLI measurement occasion and an MR wake-up duration may be considered.
[0181] Although FIG. 9 depicts only example time misalignment for CLI measurement occasions, in some other example, similar maximum time misalignment may occur between an RRM measurement occasion (s) (or other example measurement occasion (s) ) and downlink transmission (s)
[0182] FIG. 10 depicts example time misalignments 1000, 1020, 1030 between a measurement occasion and a MR wake-up duration. Time misalignment 1000, 1020, and 1030 may result in a measurement occasion (e.g., an RRM measurement occasion or CLI measurement occasion) partially overlapping an MR wake-up duration. RRM or CLI measurement and / or reporting omission, based on partial overlap between a measurement occasion and an MR wake-up duration, is depicted and described with respect to FIG. 8.
[0183] For example time misalignment 1000 depicted in FIG. 10, a start of a measurement occasion 1002 (e.g., including symbols N through K for RRM measurement and / or reporting and / or CLI measurement and / or reporting) and the start of an MR wake-up duration 1004 (e.g., including symbols N through M) may be misaligned in time by a maximum of one symbol. As an illustrative example shown in FIG. 10, a first portion of a first symbol 1006, N, of measurement occasion 1002 may not overlap any part of a first symbol 1008, N, of MR wake-up duration 1004. However, a second portion of first symbol 1006 may overlap a part of first symbol 1008. Example time misalignment 1000 may be less than or equal to the example maximum time misalignment 900 depicted and described with respect to FIG. 9.
[0184] Again, this time misalignment 1000 may be considered for FR1 with 15 kHZ SCS and 30 kHZ SCS and / or FR2 with 60 kHZ SCS.
[0185] For example time misalignment 1020 depicted in FIG. 10, a start of a measurement occasion 1022 (e.g., including symbols N through K for RRM measurement and / or reporting and / or CLI measurement and / or reporting) and the start of an MR wake-up duration 1024 (e.g., including symbols N through M) may be misaligned in time by a maximum of two symbols. As an illustrative example shown in FIG. 10, a first portion of a second symbol 1026, N+1, of measurement occasion 1022 may not overlap any part of a first symbol 1028, N, of MR wake-up duration 1024. However, a second portion of second symbol 1026 may overlap a part of first symbol 1028. Example time misalignment 1000 may be less than or equal to the example maximum time misalignment 950 depicted and described with respect to FIG. 9.
[0186] Again, this time misalignment 1020 may be considered for FR1 with 60 kHZ SCS and / or FR2 with 120 kHZ SCS.
[0187] For example time misalignment 1040 depicted in FIG. 10, an ending time of a last symbol 1048, M, for an MR wake-up duration 1044 (e.g., including symbols N through M) may occur prior to an ending time for a last symbol 1046, P, configured for a measurement occasion 1042 (e.g., including symbols L through P) .
[0188] For example, as shown in FIG. 10, measurement occasion 1042 (e.g., an RRM measurement occasion and / or a CLI measurement occasion) includes symbols L through P (e.g., “a first plurality of symbols” ) ending with symbol P 1046 (e.g., ending with “a first symbol in time” ) . Further, MR wake-up duration 1044 includes symbols N through M ending with symbol M 1048 (e.g., ending with “a second symbol in time” ) . In some examples, a first portion of symbol P 1046 (e.g., “the first symbol in time” ) may overlap symbol M 1048 (e.g., “the second symbol in time” ) , and a second portion of symbol P 1046 may not overlap symbol M 1048.
[0189] In some other examples, symbol P 1046 (e.g., “the first symbol time” ) may not overlap any of the symbols N through M of the MR wake-up duration 1044. Further, one or more other symbols, besides symbol P 1046, of the measurement occasion 1042 may overlap symbol M 1048 (not shown in FIG. 10) .
[0190] Example Operations of a User Equipment
[0191] FIG. 11 shows a method 1100 for wireless communications by a UE, such as UE 104 of FIG. 1 or UE 304 of FIG. 3.
[0192] Method 1100 begins at block 1105 with receiving an indication of one or more measurement occasions. For example, the one or more measurement occasions may include measurement occasions 722-1, 722-2, 722-3, and 722-4, depicted and described with respect to FIG. 7, where UE 704 is configured to perform measurement and / or reporting of measurement (s) . As another example, the one or more measurement occasions may include measurement occasions 822-1, 822-2, 822-3, and 822-4, depicted and described with respect to FIG. 8, where UE 804 is configured to perform measurement and / or reporting of measurement (s) . In certain aspects, the one or more measurement occasions may be RRM measurement occasion (s) for RRM measurement and / or reporting. In certain aspects, the one or more measurement occasions may be CLI measurement occasion (s) for CLI measurement and / or reporting.
[0193] Method 1100 then proceeds to block 1110 with skipping performing a first skipped measurement for a first skipped measurement occasion of the one or more measurement occasions based on: a MR of the UE being in an inactive mode during a first MR wake-up duration that overlaps the first skipped measurement occasion in time, or less than all of the first skipped measurement occasion overlapping, in time, a second MR wake-up duration associated with a first WUS detected by the UE. For example, the UE may skip performing a first skipped measurement based on the MR being in the inactive mode during an MR wake-up duration that overlaps the first skipped measurement occasion in time. Additionally, or alternatively, the UE may skip performing the first skipped measurement based on less than all of the first skipped measurement occasion overlapping, in time, an MR wake-up duration associated with a first WUS detected by the UE.
[0194] In one aspect, block 1110 includes performing one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein the one or more measurements omit the first skipped measurement for the first skipped measurement occasion.
[0195] In one aspect, method 1100 further includes reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the first skipped measurement for the first skipped measurement occasion.
[0196] In one aspect, the first skipped measurement comprises a RRM measurement.
[0197] In one aspect, the first skipped measurement comprises a CLI measurement.
[0198] In one aspect, the first skipped measurement comprises a reference signal measurement for at least one of: interference; apparatus mobility; beamforming; positioning; resource allocation; or synchronization.
[0199] In one aspect, the UE comprises the MR and a LP-WUR. In one aspect, the method 1100 further comprises, while the LP-WUR is in an active mode and the MR is in the inactive mode: monitoring, using the LP-WUR, for a first WUS associated with the first MR wake-up duration; not receiving, using the LP-WUR, the first WUS while monitoring for the first WUS; and, based on not receiving the first WUS, causing the MR to remain in the inactive mode. In one aspect, block 1110 includes skipping performing the first skipped measurement for the first skipped measurement occasion based on the MR of the UE being in the inactive mode during the first MR wake-up duration that overlaps the first skipped measurement occasion in time.
[0200] In one aspect, the first skipped measurement comprises one of a L1 CLI measurement or a L3 CLI measurement.
[0201] In one aspect, method 1100 further includes reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement or the L3 CLI measurement for the first skipped measurement occasion.
[0202] In one aspect, method 1100 further includes skipping performing a second skipped measurement for a second skipped measurement occasion of the one or more measurement occasions based on not receiving the first WUS, wherein the first MR wake-up duration overlaps the second skipped measurement occasion in time; and the second skipped measurement comprises the other of the L1 CLI measurement or the L3 CLI measurement.
[0203] In one aspect, method 1100 further includes reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement and the L3 CLI measurement for the first skipped measurement occasion and the second skipped measurement occasion.
[0204] In one aspect, the UE comprises the MR and a LP-WUR. In one aspect, the method 1100 further comprises, while the LP-WUR is in an active mode and the MR is in the inactive mode: monitoring, using the LP-WUR, for the first WUS; and receiving, using the LP-WUR, the first WUS while monitoring for the first WUS. In one aspect, based on receiving the first WUS, the method 1100 further comprises: transitioning, by the LP-WUR, from the active mode to an inactive mode; and transitioning, by the MR, from the inactive mode to the active mode for the second MR wake-up duration. In one aspect, block 1110 includes skipping performing the first skipped measurement for the first skipped measurement occasion based on less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration.
[0205] In one aspect, a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of one symbol.
[0206] In one aspect, a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of two symbols.
[0207] In one aspect, the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises: a first portion of the first symbol overlapping the second symbol; and a second portion of the first symbol not overlapping the second symbol.
[0208] In one aspect, the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises: the first symbol not overlapping any of the second plurality of symbols; and one or more other symbols of the first plurality of symbols overlapping the second symbol.
[0209] In one aspect, the first MR wake-up duration comprises a first PDCCH monitoring duration; and the second MR wake-up duration comprises a second PDCCH monitoring duration.
[0210] In one aspect, method 1100 further includes sending an uplink transmission overlapping in time with the first skipped measurement occasion.
[0211] In one aspect, method 1100 further includes receiving a downlink transmission overlapping in time with the first skipped measurement occasion.
[0212] In one aspect, method 1100, or any aspect related to it, may be performed by an apparatus, such as communications device 1300 of FIG. 13, which includes various components operable, configured, or adapted to perform the method 1100. Communications device 1300 is described below in further detail.
[0213] Note that FIG. 11 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0214] Example Operations of a Network Entity
[0215] FIG. 12 shows a method 1200 for wireless communications by a network entity, such as BS 102 of FIG. 1, a first network entity 300 or second network entity 302 of FIG. 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0216] Method 1200 begins at block 1205 with sending an indication of one or more measurement occasions.
[0217] Method 1200 then proceeds to block 1210 with performing, based on whether a WUS for a MR wake-up duration was sent, a first communication in a first skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time.
[0218] In one aspect, the first skipped measurement occasion comprises a RRM measurement occasion.
[0219] In one aspect, the first skipped measurement occasion comprises a CLI measurement occasion.
[0220] In one aspect, the first skipped measurement occasion comprises a reference signal measurement occasion for a reference signal measurement for at least one of: interference; apparatus mobility; beamforming; positioning; resource allocation; or synchronization.
[0221] In one aspect, all of the first skipped measurement occasion overlaps the MR wake-up duration in time.
[0222] In one aspect, the first skipped measurement occasion comprises one of a L1 CLI measurement and reporting occasion or a L3 CLI measurement and reporting occasion.
[0223] In certain aspects, method 1200 further includes performing, based on whether the WUS for the MR wake-up duration was sent, a second communication in a second skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time, and the second skipped measurement occasion comprises the other of the L1 CLI measurement and reporting occasion or the L3 CLI measurement and reporting occasion.
[0224] In certain aspects, method 1200 further includes sending the WUS.
[0225] In one aspect, a start of the MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of one symbol.
[0226] In one aspect, a start of the MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of two symbols.
[0227] In one aspect, the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and the first skipped measurement occasion at least partially overlapping the MR wake-up duration in time comprises: a first portion of the first symbol overlapping the second symbol; and a second portion of the first symbol not overlapping the second symbol.
[0228] In one aspect, the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and the first skipped measurement occasion at least partially overlapping the MR wake-up duration in time comprises: the first symbol not overlapping any of the second plurality of symbols; and one or more other symbols of the first plurality of symbols overlapping the second symbol.
[0229] In one aspect, the MR wake-up duration comprises a PDCCH monitoring duration.
[0230] In one aspect, the first communication comprises a downlink transmission or an uplink transmission.
[0231] In one aspect, method 1200, or any aspect related to it, may be performed by an apparatus, such as communications device 1400 of FIG. 14, which includes various components operable, configured, or adapted to perform the method 1200. Communications device 1400 is described below in further detail.
[0232] Note that FIG. 12 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0233] Example Communications Devices
[0234] FIG. 13 depicts aspects of an example communications device 1300 configured for wireless communications. In some aspects, communications device 1300 is a user equipment, such as UE 104 described above with respect to FIG. 1 or UE 304 described with respect to FIG. 3.
[0235] The communications device 1300 includes a processing system 1302 coupled to a transceiver 1338 (e.g., a transmitter and / or a receiver) . In various aspects, the transceiver 1338 may be representative of the one or more transceivers 324 described with respect to FIG. 3. The transceiver 1338 is configured to transmit and receive signals for the communications device 1300 via an antenna 1340, such as the various signals as described herein. The processing system 1302 may be configured to perform processing functions for the communications device 1300, including processing signals received and / or to be transmitted by the communications device 1300.
[0236] The processing system 1302 includes one or more processors 1304 and a computer-readable medium / memory 1320. In various aspects, the one or more processors 1304 may be representative of the one or more processors 318 described with respect to FIG. 3. The one or more processors 1304 are coupled to a computer-readable medium / memory 1320 via a bus 1336. In some aspects, the computer-readable medium / memory 1320 may be representative of the one or more memories 320 described with respect to FIG. 3. The computer-readable medium / memory 1320 is a non-transitory computer-readable medium / memory. In certain aspects, the computer-readable medium / memory 1320 is configured to store instructions (e.g., computer-executable code) , that when executed by the one or more processors 1304, cause the one or more processors 1304 to perform the method 1100 described with respect to FIG. 11, or any aspect related to it, including any operations described in relation to FIG. 11. Note that reference to a processor performing a function of communications device 1300 may include one or more processors performing that function of communications device 1300, such as in a distributed fashion.
[0237] In the depicted example, computer-readable medium / memory 1320 stores code (e.g., executable instructions) , including code for receiving 1322 (e.g., with reference to block 1105 of FIG. 11) , code for skipping 1324 (e.g., with reference to block 1110 of FIG. 11) , code for reporting 1326, e.g., one or more measurements on at least one measurement occasion of one or more measurement occasions, code for monitoring 1328, e.g., using the LP-WUR, for a first WUS, code for causing 1330, e.g., an MR to remain in an inactive mode, code for transitioning 1332, e.g., from an active mode to an inactive mode or from an inactive mode to an active mode, and code for sending 1334, e.g., an uplink transmission overlapping in time with a first skipped measurement occasion. Processing of the code 1322-1334 may enable and cause the communications device 1300 to perform the method 1100 described with respect to FIG. 11, or any aspect related to it.
[0238] The one or more processors 1304 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1320, including circuitry for receiving 1306 (e.g., with reference to block 1105 of FIG. 11) , circuitry for skipping 1308 (e.g., with reference to block 1110 of FIG. 11) , circuitry for reporting 1310, circuitry for monitoring 1312, circuitry for causing 1314, e.g., an MR to remain in an inactive mode, circuitry for transitioning 1316, e.g., from an active mode to an inactive mode or from an inactive mode to an active mode, and circuitry for sending 1318, e.g., an uplink transmission overlapping in time with a first skipped measurement occasion. Processing with circuitry 1306-1318 may enable and cause the communications device 1300 to perform the method 1100 described with respect to FIG. 11, or any aspect related to it.
[0239] More generally, means for communicating, transmitting, sending or outputting for transmission may include the one or more transceivers 324, one or more antenna 322 and / or processing system 316 of the UE 304 illustrated in FIG. 3, transceiver 1338 and / or antenna 1340 of the communications device 1300 in FIG. 13, and / or one or more processors 1304 of the communications device 1300 in FIG. 13. Means for communicating, receiving or obtaining may include the one or more transceivers 324, one or more antennas 322, and / or processing system 316 of the UE 304 illustrated in FIG. 3, transceiver 1338 and / or antenna 1340 of the communications device 1300 in FIG. 13, and / or one or more processors 1304 of the communications device 1300 in FIG. 13.
[0240] FIG. 14 depicts aspects of an example communications device configured for wireless communications. In some aspects, communications device 1400 is a network entity, such as BS 102 of FIG. 1, first network entity 300 or second network entity 302 of FIG. 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0241] The communications device 1400 includes a processing system 1405 coupled to a transceiver 1445 (e.g., a transmitter and / or a receiver) and / or a network interface 1455. In various aspects, the transceiver 1445 may be representative of the one or more transceivers 312 described with respect to FIG. 3. The transceiver 1445 is configured to transmit and receive signals for the communications device 1400 via an antenna 1450, such as the various signals as described herein. The network interface 1455 is configured to obtain and send signals for the communications device 1400 via communications link (s) , such as a backhaul link, midhaul link, and / or fronthaul link as described herein, such as with respect to FIG. 2. The processing system 1405 may be configured to perform processing functions for the communications device 1400, including processing signals received and / or to be transmitted by the communications device 1400.
[0242] The processing system 1405 includes one or more processors 1410 and a computer-readable medium / memory 1425. In various aspects, one or more processors 1410 may be representative of the one or more processors 308, as described with respect to FIG. 3. The one or more processors 1410 are coupled to the computer-readable medium / memory 1425 via a bus 1440. In certain aspects, the computer-readable medium / memory 1425 is configured to store instructions (e.g., computer-executable code) , including code for sending 1430 and code for performing 1435, that when executed by the one or more processors 1410, cause the one or more processors 1410 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it, including any operations described in relation to FIG. 12. The computer-readable medium / memory 1425 is a non-transitory computer-readable medium / memory. Note that reference to a processor of communications device 1400 performing a function may include one or more processors of communications device 1400 performing that function, such as in a distributed fashion.
[0243] In the depicted example, the computer-readable medium / memory 1425 stores code (e.g., executable instructions) , including code for sending 1430 and code for performing 1435. Processing of the code for sending 1430 (e.g., with reference to block 1205 of FIG. 12) and the code for performing 1435 (e.g., with reference to block 1210 of FIG. 12) may enable and cause the communications device 1400 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it.
[0244] The one or more processors 1410 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1425, including circuitry for sending 1415 and circuitry for performing 1420. Processing with circuitry for sending 1415 (e.g., with reference to block 1205 of FIG. 12) and circuity for performing 1420 (e.g., with reference to block 1210 of FIG. 12) may enable and cause the communications device 1400 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it.
[0245] Various components of the communications device 1400 may provide means for performing the method 1200 described with respect to FIG. 12, or any aspect related to it. Means for communicating, transmitting, sending or outputting for transmission may include the one or more transceivers 312, one or more antennas 314, and / or processing system 306 of the first network entity 300 or the second network entity 302 illustrated in FIG. 3, transceiver 1445, antenna 1450, and / or network interface 1455 of the communications device 1400 in FIG. 14, and / or one or more processors 1410 of the communications device 1400 in FIG. 14. Means for communicating, receiving or obtaining may include the one or more transceivers 312, one or more antennas 314, and / or processing system 306 of the first network entity 300 or the second network entity 302 illustrated in FIG. 3, transceiver 1445, antenna 1450, and / or network interface 1455 of the communications device 1400 in FIG. 14, and / or one or more processors 1410 of the communications device 1400 in FIG. 14. For example, means for performing of the method 1200 described with respect to FIG. 12, or any aspect related to it, may include one or more processors 1410 of the communications device 1400 in FIG. 14.
[0246] Example Clauses
[0247] Implementation examples are described in the following numbered clauses:
[0248] Clause 1: A method for wireless communications by a UE, comprising: receiving an indication of one or more measurement occasions; and skipping performing a first skipped measurement for a first skipped measurement occasion of the one or more measurement occasions based on: a MR of the UE being in an inactive mode during a first MR wake-up duration that overlaps the first skipped measurement occasion in time, or less than all of the first skipped measurement occasion overlapping, in time, a second MR wake-up duration associated with a first WUS detected by the UE.
[0249] Clause 2: The method of Clause 1, wherein skipping performing the first skipped measurement comprises performing one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein the one or more measurements omit the first skipped measurement for the first skipped measurement occasion.
[0250] Clause 3: The method of Clause 2, further comprising reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the first skipped measurement for the first skipped measurement occasion.
[0251] Clause 4: The method of any one of Clauses 1-3, wherein the first skipped measurement comprises a RRM measurement.
[0252] Clause 5: The method of any one of Clauses 1-4, wherein the first skipped measurement comprises a CLI measurement.
[0253] Clause 6: The method of any one of Clauses 1-5, wherein the first skipped measurement comprises a reference signal measurement for at least one of: interference; apparatus mobility; beamforming; positioning; resource allocation; or synchronization.
[0254] Clause 7: The method of any one of Clauses 1-6, wherein the UE comprises the MR and a LP-WUR, and, while the LP-WUR is in an active mode and the MR is in the inactive mode, the method further comprises: monitoring, using the LP-WUR, for the first WUS associated with the first MR wake-up duration; not receiving, using the LP-WUR, the first WUS while monitoring for the first WUS; and causing the MR to remain in the inactive mode based on not receiving the first WUS; wherein skipping performing the first skipped measurement comprises skipping performing the first skipped measurement for the first skipped measurement occasion based on the MR of the UE being in the inactive mode during the first MR wake-up duration that overlaps the first skipped measurement occasion in time.
[0255] Clause 8: The method of Clause 7, wherein the first skipped measurement comprises one of a L1 CLI measurement or a L3 CLI measurement.
[0256] Clause 9: The method of Clause 8, further comprising reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement or the L3 CLI measurement for the first skipped measurement occasion.
[0257] Clause 10: The method of Clause 8, further comprising skipping performing a second skipped measurement for a second skipped measurement occasion of the one or more measurement occasions based on not receiving the first WUS, wherein the first MR wake-up duration overlaps the second skipped measurement occasion in time; and wherein the second skipped measurement comprises the other of the L1 CLI measurement or the L3 CLI measurement.
[0258] Clause 11: The method of Clause 10, further comprising reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement and the L3 CLI measurement for the first skipped measurement occasion and the second skipped measurement occasion.
[0259] Clause 12: The method of any one of Clauses 1-11, wherein the UE comprises the MR and a LP-WUR, and, while the LP-WUR is in an active mode and the MR is in the inactive mode, the method further comprises: monitoring, using the LP-WUR, for the first WUS; and receiving, using the LP-WUR, the first WUS while monitoring for the first WUS; and based on receiving the first WUS, the method further comprises: transitioning, by the LP-WUR, from the active mode to an inactive mode; and transitioning, by the MR, from the inactive mode to the active mode for the second MR wake-up duration; wherein skipping performing the first skipped measurement comprises skipping performing the first skipped measurement for the first skipped measurement occasion based on less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration.
[0260] Clause 13: The method of Clause 12, wherein a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of one symbol.
[0261] Clause 14: The method of Clause 12, wherein a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of two symbols.
[0262] Clause 15: The method of Clause 12, wherein: the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises: a first portion of the first symbol overlapping the second symbol; and a second portion of the first symbol not overlapping the second symbol.
[0263] Clause 16: The method of Clause 12, wherein: the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises: the first symbol not overlapping any of the second plurality of symbols; and one or more other symbols of the first plurality of symbols overlapping the second symbol.
[0264] Clause 17: The method of any one of Clauses 1-16, wherein: the first MR wake-up duration comprises a first PDCCH monitoring duration; or the second MR wake-up duration comprises a second PDCCH monitoring duration.
[0265] Clause 18: The method of any one of Clauses 1-17, further comprising sending an uplink transmission overlapping in time with the first skipped measurement occasion.
[0266] Clause 19: The method of any one of Clauses 1-18, further comprising receiving a downlink transmission overlapping in time with the first skipped measurement occasion.
[0267] Clause 20: A method for wireless communications by a network entity, comprising: sending an indication of one or more measurement occasions; and performing, based on whether a WUS for a MR wake-up duration was sent, a first communication in a first skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time.
[0268] Clause 21: The method of Clause 20, wherein the first skipped measurement occasion comprises a RRM measurement occasion.
[0269] Clause 22: The method of any one of Clauses 20-21, wherein the first skipped measurement occasion comprises a CLI measurement occasion.
[0270] Clause 23: The method of any one of Clauses 20-22, wherein the first skipped measurement occasion comprises a reference signal measurement occasion for a reference signal measurement for at least one of: interference; apparatus mobility; beamforming; positioning; resource allocation; or synchronization.
[0271] Clause 24: The method of any one of Clauses 20-23, wherein all of the first skipped measurement occasion overlaps the MR wake-up duration in time.
[0272] Clause 25: The method of Clause 24, wherein the first skipped measurement occasion comprises one of a L1 CLI measurement and reporting occasion or a L3 CLI measurement and reporting occasion.
[0273] Clause 26: The method of Clause 25, further comprising: performing, based on whether the WUS for the MR wake-up duration was sent, a second communication in a second skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time, and the second skipped measurement occasion comprises the other of the L1 CLI measurement and reporting occasion or the L3 CLI measurement and reporting occasion.
[0274] Clause 27: The method of any one of Clauses 20-26, further comprising sending the WUS.
[0275] Clause 28: The method of Clause 27, wherein a start of the MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of one symbol.
[0276] Clause 29: The method of Clause 27, wherein a start of the MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of two symbols.
[0277] Clause 30: The method of Clause 27, wherein: the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and the first skipped measurement occasion at least partially overlapping the MR wake-up duration in time comprises: a first portion of the first symbol overlapping the second symbol; and a second portion of the first symbol not overlapping the second symbol.
[0278] Clause 31: The method of Clause 27, wherein: the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time; the MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; and the first skipped measurement occasion at least partially overlapping the MR wake-up duration in time comprises: the first symbol not overlapping any of the second plurality of symbols; and one or more other symbols of the first plurality of symbols overlapping the second symbol.
[0279] Clause 32: The method of any one of Clauses 20-31, wherein the MR wake-up duration comprises a PDCCH monitoring duration.
[0280] Clause 33: The method of any one of Clauses 20-32, wherein the first communication comprises a downlink transmission or an uplink transmission.
[0281] Clause 34: One or more apparatuses, comprising: one or more memories comprising executable instructions; and one or more processors configured to execute the executable instructions and cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-33.
[0282] Clause 35: One or more apparatuses configured for wireless communications, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-33.
[0283] Clause 36: One or more apparatuses configured for wireless communications, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to perform a method in accordance with any one of Clauses 1-33.
[0284] Clause 37: One or more apparatuses, comprising means for performing a method in accordance with any one of Clauses 1-33.
[0285] Clause 38: One or more non-transitory computer-readable media comprising executable instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-33.
[0286] Clause 39: One or more computer program products embodied on one or more computer-readable storage media comprising code for performing a method in accordance with any one of Clauses 1-33.
[0287] Clause 40: One or more apparatuses configured for wireless communications, comprising: a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-33.
[0288] Additional Considerations
[0289] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein are not limiting of the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For instance, the methods described may be performed in an order different from that described, and various actions may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method that is practiced using other structure, functionality, or structure and functionality in addition to, or other than, the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0290] The various illustrative logical blocks, modules and circuits described in connection with the present disclosure may be implemented or performed with a general purpose processor, an AI processor, a digital signal processor (DSP) , an application specific integrated circuit (ASIC) , a field programmable gate array (FPGA) or other programmable logic device (PLD) , 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 the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, a SoC, a SiP, or any other such configuration.
[0291] As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
[0292] As used herein, the term “determining” encompasses a wide variety of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure) , ascertaining and the like. Also, “determining” may include receiving (e.g., receiving information) , accessing (e.g., accessing data in a memory) and the like. Also, “determining” may include resolving, selecting, choosing, establishing and the like.
[0293] As used herein, “coupled to” and “coupled with” generally encompass direct coupling and indirect coupling (e.g., including intermediary coupled aspects) unless stated otherwise. For example, stating that a processor is coupled to a memory allows for a direct coupling or a coupling via an intermediary aspect, such as a bus.
[0294] The methods disclosed herein comprise one or more actions for achieving the methods. The method actions may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. Further, the various operations of methods described above may be performed by any suitable means capable of performing the corresponding functions. The means may include various hardware and / or software component (s) and / or module (s) , including, but not limited to a circuit, an ASIC, or processor.
[0295] The following claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language of the claims. Reference to an element in the singular is not intended to mean only one unless specifically so stated, but rather “one or more. ” The subsequent use of a definite article (e.g., “the” or “said” ) with an element (e.g., “the processor” ) is not intended to invoke a singular meaning (e.g., “only one” ) on the element unless otherwise specifically stated. For example, reference to an element (e.g., “a processor, ” “the processor, ” etc. ) , unless otherwise specifically stated, should be understood to refer to one or more elements (e.g., “one or more processors, ” or the like) . The terms “set” and “group” are intended to include one or more elements, and may be used interchangeably with “one or more. ” Where reference is made to one or more elements performing functions (e.g., steps of a method) , one element may perform all functions, or more than one element may collectively perform the functions. When more than one element collectively performs the functions, each function need not be performed by each of those elements (e.g., different functions may be performed by different elements) and / or each function need not be performed in whole by only one element (e.g., different elements may perform different sub-functions of a function) . Similarly, where reference is made to one or more elements configured to cause another element (e.g., an apparatus) to perform functions, one element may be configured to cause the other element to perform all functions, or more than one element may collectively be configured to cause the other element to perform the functions. Unless specifically stated otherwise, the term “some” refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims.
Claims
1.A user equipment (UE) , comprising:a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to:receive an indication of one or more measurement occasions; andskip performing a first skipped measurement for a first skipped measurement occasion of the one or more measurement occasions based on:a main receiver (MR) of the UE being in an inactive mode during a first MR wake-up duration that overlaps the first skipped measurement occasion in time, orless than all of the first skipped measurement occasion overlapping, in time, a second MR wake-up duration associated with a first wake-up signal (WUS) detected by the UE.2.The UE of claim 1, further comprising the MR and a low power wake-up receiver (LP-WUR) , wherein:the processing system is configured to, while the LP-WUR is in an active mode and the MR is in the inactive mode:monitor, using the LP-WUR, for the first WUS associated with the first MR wake-up duration;not receive, using the LP-WUR, the first WUS while monitoring for the first WUS; andbased on not receiving the first WUS, cause the MR to remain in the inactive mode; andto skip performing the first skipped measurement, the processing system is configured to skip performing the first skipped measurement for the first skipped measurement occasion based on the MR of the UE being in the inactive mode during the first MR wake-up duration that overlaps the first skipped measurement occasion in time.3.The UE of claim 2, wherein the first skipped measurement comprises one of a layer 1 (L1) cross-link interference (CLI) measurement or a layer 3 (L3) CLI measurement.4.The UE of claim 3, wherein the processing system is configured to report one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement or the L3 CLI measurement for the first skipped measurement occasion.5.The UE of claim 3, wherein:the processing system is configured to skip performing a second skipped measurement for a second skipped measurement occasion of the one or more measurement occasions based on not receiving the first WUS, wherein the first MR wake-up duration overlaps the second skipped measurement occasion in time; andthe second skipped measurement comprises the other of the L1 CLI measurement or the L3 CLI measurement.6.The UE of claim 5, wherein the processing system is configured to report one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein to report the one or more measurements comprises omitting reporting the L1 CLI measurement and the L3 CLI measurement for the first skipped measurement occasion and the second skipped measurement occasion.7.The UE of claim 1, further comprising the MR and a low power wake-up receiver (LP-WUR) , wherein:the processing system is configured to:while the LP-WUR is in an active mode and the MR is in the inactive mode:monitor, using the LP-WUR, for the first WUS; andreceive, using the LP-WUR, the first WUS while monitoring for the first WUS; andbased on receiving the first WUS:transition, by the LP-WUR, from the active mode to an inactive mode; andtransition, by the MR, from the inactive mode to the active mode for the second MR wake-up duration; andto skip performing the first skipped measurement, the processing system is configured to skip performing the first skipped measurement for the first skipped measurement occasion based on less than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration.8.The UE of claim 7, wherein a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of one symbol.9.The UE of claim 7, wherein a start of the second MR wake-up duration and a start of the first skipped measurement occasion are misaligned in time by a maximum of two symbols.10.The UE of claim 7, wherein:the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time;the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; andless than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises:a first portion of the first symbol overlapping the second symbol; anda second portion of the first symbol not overlapping the second symbol.11.The UE of claim 7, wherein:the first skipped measurement occasion comprises a first plurality of symbols ending with a first symbol in time;the second MR wake-up duration comprises a second plurality of symbols ending with a second symbol in time; andless than all of the first skipped measurement occasion overlapping, in time, the second MR wake-up duration comprises:the first symbol not overlapping any of the second plurality of symbols; andone or more other symbols of the first plurality of symbols overlapping the second symbol.12.A method of wireless communications by a user equipment (UE) , comprising:receiving an indication of one or more measurement occasions; andskipping performing a first skipped measurement for a first skipped measurement occasion of the one or more measurement occasions based on:a main receiver (MR) of the UE being in an inactive mode during a first MR wake-up duration that overlaps the first skipped measurement occasion in time, orless than all of the first skipped measurement occasion overlapping, in time, a second MR wake-up duration associated with a first wake-up signal (WUS) detected by the UE.13.The method of claim 12, wherein skipping performing the first skipped measurement comprises performing one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein the one or more measurements omit the first skipped measurement for the first skipped measurement occasion.14.The method of claim 13, further comprising:reporting one or more measurements on at least one measurement occasion of the one or more measurement occasions, wherein reporting the one or more measurements comprises omitting reporting the first skipped measurement for the first skipped measurement occasion.15.The method of claim 12, wherein the first skipped measurement comprises:a radio resource management (RRM) measurement; ora cross-link interference (CLI) measurement.16.The method of claim 12, wherein the first skipped measurement comprises a reference signal measurement for at least one of:interference;apparatus mobility;beamforming;positioning;resource allocation; orsynchronization.17.The method of claim 12, wherein:the first MR wake-up duration comprises a first physical downlink control channel (PDCCH) monitoring duration or the second MR wake-up duration comprises a second PDCCH monitoring duration.18.The method of claim 12, further comprising:sending an uplink transmission overlapping in time with the first skipped measurement occasion; orreceiving a downlink transmission overlapping in time with the first skipped measurement occasion.19.A method of wireless communications by a network entity, comprising:sending an indication of one or more measurement occasions; andperforming, based on whether a wake-up signal (WUS) for a main receiver (MR) wake-up duration was sent, a first communication in a first skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time.20.The method of claim 19, wherein:all of the first skipped measurement occasion overlaps the MR wake-up duration in time;the first skipped measurement occasion comprises one of a layer 1 (L1) cross-link interference (CLI) measurement and reporting occasion or a layer 3 (L3) CLI measurement and reporting occasion; andthe method further comprises:performing, based on whether the WUS for the MR wake-up duration was sent, a second communication in a second skipped measurement occasion, of the one or more measurement occasions, that at least partially overlaps the MR wake-up duration in time,the second skipped measurement occasion comprising the other of the L1 CLI measurement and reporting occasion or the L3 CLI measurement and reporting occasion.
Citation Information
Patent Citations
Cross-link interference (CLI) measurement and reporting
US20240214852A1
Techniques for cross-link interference measurement for cell discontinuous reception
US20240260073A1
Cross-link interference (CLI) radio resource management (RRM) measurement
WO2020198056A1
Methods and arrangements for cross-link interference mitigation
WO2023212080A1
Inter-user equipment cross-link interference management
WO2024150207A1