Light layer 1 measurement reporting
By introducing lightweight L1 measurement reports in the wireless communication system, the problems of information redundancy and resource waste when channel conditions are relatively static, and efficient resource utilization and channel efficiency are achieved.
Patent Information
- Application Number
- CN202380041141.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-05-24
- Filing Date
- 2023-04-27
- Publication Date
- 2024-12-17
AI Technical Summary
When conducting L1 measurement reports, existing wireless communication systems have problems of information redundancy and resource waste, especially when the channel conditions are relatively static, frequent transmission of normal L1 measurement reports leads to high overhead, delay and low throughput.
Introduce a light L1 measurement report, by omitting or modifying the information in the previously sent normal L1 measurement report, sending only the light L1 measurement report associated with the measurement, and sending it when certain conditions are met, such as reducing the limit when the measurement is within tolerance. Consumption of network resources.
Effectively reduces the overhead associated with L1 measurement reports, reduces the consumption of computing, power and communication resources, improves channel utilization efficiency, reduces latency and increases throughput.
Smart Images

Figure CN119156850A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Patent Application No. 17 / 664,703, filed on May 24, 2022, entitled “LIGHT LAYER1 MEASUREMENT REPORT” and assigned to the assignee of this application. The disclosure of the prior application is considered a part of and incorporated by reference into this patent application. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for lightweight layer 1 measurement reporting. Background Art
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0005] A wireless network may include one or more network entities that support communications for a user equipment (UE) or multiple UEs. A UE may communicate with a network entity via downlink communications and uplink communications. A "downlink" (or "DL") refers to the communication link from a network entity to a UE, and an "uplink" (or "UL") refers to the communication link from a UE to a network entity.
[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region, and / or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the invention
[0007] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include performing measurements of one or more reference signals associated with a layer 1 (L1) measurement report. The method may include sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of: omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include receiving a normal L1 measurement report from a UE. The method may include receiving a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the normal L1 measurement report, or includes information different from the information sent in the normal L1 measurement report.
[0009] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include: a memory and one or more processors, the one or more processors coupled to the memory. The one or more processors may be configured to perform measurements of one or more reference signals associated with an L1 measurement report. The one or more processors may be configured to send a lightweight L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more lightweight L1 measurement report conditions, wherein the lightweight L1 measurement report is at least in part based on a previously sent normal L1 measurement report, and wherein the lightweight L1 measurement report performs at least one of the following: omitting at least some information sent in the previously sent normal L1 measurement report, or including information different from the previously sent normal L1 measurement report.
[0010] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include: a memory and one or more processors, the one or more processors coupled to the memory. The one or more processors may be configured to receive a normal L1 measurement report from a UE. The one or more processors may be configured to receive a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is at least in part based on the normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omitting at least some information sent in the previously sent normal L1 measurement report, or including information different from the previously sent normal L1 measurement report.
[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication performed by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to perform measurements of one or more reference signals associated with an L1 measurement report. The instruction set, when executed by one or more processors of the UE, may cause the UE to send a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omits at least some information sent in the previously sent normal L1 measurement report, or includes information different from the previously sent normal L1 measurement report.
[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network entity. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to receive a normal L1 measurement report from a UE. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to receive a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is at least in part based on the normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omits at least some information sent in the previously sent normal L1 measurement report, or includes information different from the previously sent normal L1 measurement report.
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for performing measurements of one or more reference signals associated with an L1 measurement report. The apparatus may include means for sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the previously sent normal L1 measurement report, or includes information different from the previously sent normal L1 measurement report.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a normal L1 measurement report from a UE. The apparatus may include means for receiving a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report.
[0015] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, network entities, wireless communication devices, and / or processing systems as fully described herein with reference to and illustrated in the drawings and description.
[0016] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.
[0017] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The device incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0019] FIG. 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0020] 2 is a diagram illustrating an example of a network entity communicating with a user equipment (UE) in a wireless network according to the present disclosure.
[0021] FIG. 3 is a diagram illustrating an example of an open radio access network architecture according to the present disclosure.
[0022] FIG. 4 is a diagram illustrating an example of physical channels and reference signals in a wireless network according to the present disclosure.
[0023] FIG. 5 is a diagram illustrating an example of a channel state information reference signal beam management procedure according to the present disclosure.
[0024] FIG. 6 is a diagram illustrating an example of a lightweight layer 1 (L1) measurement reporting procedure according to the present disclosure.
[0025] FIG. 7 is a diagram illustrating an example associated with sending a light L1 measurement report according to the present disclosure.
[0026] FIG. 8 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0027] FIG. 9 is a diagram illustrating an example process, for example, performed by a network entity, according to the present disclosure.
[0028] 10 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0029] 11 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0030] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functionality, or structures and functionality in addition to or different from 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 the claims.
[0031] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0032] Although various aspects may be described herein using terminology generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).
[0033] 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network entities 110 (shown as NE110a, NE110b, NE110c, and NE110d), a user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE120b, UE120c, UE120d, and UE120e), and / or other network entities. The network entity 110 is an entity that communicates with the UE 120. The network entity 110 (sometimes referred to as NE) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), and / or a decomposed portion of a base station such as a centralized unit (CU), a distributed unit (DU), and / or a radio unit (RU), which are described in more detail in conjunction with the described open radio access network (O-RAN) architecture shown in FIG. 3 . Each network entity 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to a coverage area of the network entity 110 and / or a network entity subsystem serving the coverage area, depending on the context in which the term is used.
[0034] The network entity 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). The network entity 110 for a macro cell may be referred to as a macro network entity. The network entity 110 for a pico cell may be referred to as a pico network entity. The network entity 110 for a femto cell may be referred to as a femto network entity or a home network entity. 1, NE 110a may be a macro network entity for macro cell 102a, NE 110b may be a pico network entity for pico cell 102b, and NE 110c may be a femto network entity for femto cell 102c. A network entity may support one or more (eg, three) cells.
[0035] In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move depending on the location of the mobile network entity 110 (e.g., the mobile network entity). In some examples, the network entities 110 may be interconnected with each other and / or with one or more other network entities 110 or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections or virtual networks).
[0036] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a network entity 110 or a UE 120) and transmit transmissions of data to a downstream station (e.g., a UE 120 or a network entity 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. In the example shown in FIG. 1 , a NE 110 d (e.g., a relay network entity) may communicate with a NE 110 a (e.g., a macro network entity) and a UE 120 d in order to facilitate communication between the NE 110 a and the UE 120 d. A network entity 110 that relays communications may be referred to as a relay station, a relay network entity, a relay, etc.
[0037] The wireless network 100 may be a heterogeneous network that includes different types of network entities 110, such as macro network entities, pico network entities, femto network entities, relay network entities, etc. These different types of network entities 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network entity may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network entity, a femto network entity, and a relay network entity may have a lower transmit power level (e.g., 0.1 watt to 2 watts).
[0038] The network controller 130 may be coupled to or in communication with a set of network entities 110 and may provide coordination and control for these network entities 110. The network controller 130 may communicate with the network entities 110 via backhaul communication links. The network entities 110 may also communicate directly or indirectly with each other via wireless or wired backhaul communication links.
[0039] UE 120 may be distributed throughout wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, and / or any other suitable device configured to communicate via a wireless medium.
[0040] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a network entity, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0041] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.
[0042] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network entity 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network entity 110.
[0043] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that, although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).
[0044] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125 GHz–24.25 GHz). The bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz–71 GHz), FR4 (52.6 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.
[0045] Considering the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. Additionally, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0046] In some aspects, the UE 120 may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may perform measurements of one or more reference signals associated with a layer 1 (L1) measurement report; and send a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of: omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.
[0047] In some aspects, the network entity 110 may include a communications manager 150. As described in more detail elsewhere herein, the communications manager 150 may receive a normal L1 measurement report from a UE; and receive a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report at least one of: omits at least some information sent in the normal L1 measurement report, or includes information that is different from the information sent in the normal L1 measurement report. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.
[0048] As indicated above, FIG1 is provided as an example. Other examples may differ from what is described with respect to FIG1 .
[0049] 2 is a diagram illustrating an example 200 of a network entity 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network entity 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T ≥ 1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R ≥ 1).
[0050] At the network entity 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network entity 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).
[0051] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive downlink signals from the network entity 110 and / or other network entities 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a through 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.
[0052] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network entity 110 via the communication unit 294.
[0053] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. The antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmit and / or receive components (such as, for example, one or more components in FIG. 2 ).
[0054] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network entity 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280 ) and memory 282 to perform aspects of any of the methods described herein (eg, with reference to FIGS. 6-11 ).
[0055] At the network entity 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller / processor 240. The network entity 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network entity 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network entity 110 may include a modulator and a demodulator. In some examples, the network entity 110 includes a transceiver. The transceiver may include any combination of an antenna 234, a modem 232, a MIMO detector 236, a receive processor 238, a transmit processor 220, and / or a TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., with reference to FIGS. 6-11 ).
[0056] Controller / processor 240 of network entity 110, controller / processor 280 of UE 120, and / or any other component of FIG. 2 may perform one or more techniques associated with lightweight L1 measurement reporting, as described in more detail elsewhere herein. For example, controller / processor 240 of network entity 110, controller / processor 280 of UE 120, and / or any other component of FIG. 2 may perform or direct the operation of, for example, process 800 of FIG. 8, process 900 of FIG. 9, and / or other processes described herein. Memory 242 and memory 282 may store data and program codes for network entity 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of network entity 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network entity 110 to perform or direct operations such as process 800 of FIG. 8 , process 900 of FIG. 9 , and / or other processes described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among others.
[0057] In some aspects, the UE 120 includes: means for performing measurements of one or more reference signals associated with the L1 measurement report (e.g., using the controller / processor 280, the memory 282, etc.); and / or means for sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report (e.g., using the controller / processor 280, the transmit processor 264, the TX MIMO processor 266, the modem 254, the antenna 252, the memory 282, etc.). Means for UE 120 to perform operations described herein may include, for example, one or more of communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0058] In some aspects, the network entity 110 includes: means for receiving a normal L1 measurement report from a UE (e.g., UE 120) (e.g., using the antenna 234, the modem 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, etc.); and / or means for receiving a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the normal L1 measurement report or includes information different from the information sent in the normal L1 measurement report (e.g., using the antenna 234, the modem 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, etc.). In some aspects, means for the network entity 110 to perform operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.
[0059] 2 are illustrated as distinct components, the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0060] As indicated above, FIG2 is provided as an example. Other examples may differ from that described with respect to FIG2.
[0061] FIG3 is a diagram illustrating an example 300 of an O-RAN architecture according to the present disclosure. As shown in FIG3 , the O-RAN architecture may include a CU 310 that communicates with a core network 320 via a backhaul link. In addition, the CU 310 may communicate with one or more DUs 330 via corresponding midhaul links. The DUs 330 may each communicate with one or more RUs 340 via corresponding fronthaul links, and the RUs 340 may each communicate with corresponding UEs 120 via radio frequency (RF) access links. The DUs 330 and RUs 340 may also be referred to as O-RAN DUs (O-DUs) 330 and O-RAN RUs (O-RUs) 340, respectively.
[0062] In some aspects, the DU 330 and the RU 340 may be implemented according to a functional split architecture, wherein functionality of a network entity 110 (e.g., a base station, eNB, and / or gNB) is provided by a DU 330 and one or more RUs 340 that communicate via a fronthaul link. Thus, as described herein, the network entity 110 may include a DU 330 and one or more RUs 340, which may be co-located or geographically distributed. In some aspects, the DU 330 and associated RUs 340 may communicate via a fronthaul link to exchange real-time control plane information via a lower layer split (LLS) control plane (LLS-C) interface, non-real-time management information via an LLS management plane (LLS-M) interface, and / or user plane information via an LLS user plane (LLS-U) interface.
[0063] Thus, the DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. For example, in some aspects, the DU 330 may host a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (e.g., forward error correction (FEC) encoding and decoding, scrambling, and / or modulation and demodulation) based at least in part on the lower layer functional split. Higher layer control functions (such as packet data convergence protocol (PDCP), radio resource control (RRC), and / or service data adaptation protocol (SDAP)) may be hosted by the CU 310. Based at least in part on the lower layer functional split, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions and low PHY layer functions (e.g., fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, and / or physical random access channel (PRACH) extraction and filtering). Thus, in the O-RAN architecture, the RU 340 handles all over-the-air (OTA) communications with the UE 120, and the real-time and non-real-time aspects of the control plane and user plane communications with the RU 340 are controlled by the corresponding DU 330, which enables the DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture.
[0064] As indicated above, FIG3 is provided as an example. Other examples may differ from that described with respect to FIG3.
[0065] FIG4 is a diagram illustrating an example 400 of physical channels and reference signals in a wireless network according to the present disclosure. As shown in FIG4, downlink channels and downlink reference signals may carry information from network entity 110 to UE 120, and uplink channels and uplink reference signals may carry information from UE 120 to network entity 110.
[0066] As shown, the downlink channel may include a physical downlink control channel (PDCCH) carrying downlink control information (DCI), a physical downlink shared channel (PDSCH) carrying downlink data, or a physical broadcast channel (PBCH) carrying system information, etc. In some aspects, PDSCH communication may be scheduled by PDCCH communication. As further shown, the uplink channel may include a physical uplink control channel (PUCCH) carrying uplink control information (UCI), a physical uplink shared channel (PUSCH) carrying uplink data, or a physical random access channel (PRACH) for initial network access, etc. In some aspects, the UE 120 may send an acknowledgement (ACK) or negative acknowledgement (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in the UCI on the PUCCH and / or PUSCH.
[0067] As further shown in the figure, the downlink reference signal may include a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), or a phase tracking reference signal (PTRS), etc. As also shown in the figure, the uplink reference signal may include a sounding reference signal (SRS), a DMRS, or a PTRS, etc.
[0068] The SSB may carry information used for initial network acquisition and synchronization, such as a primary synchronization signal (PSS), a secondary synchronization signal (SSS), PBCH, and PBCH DMRS. The SSB is sometimes referred to as a synchronization signal / PBCH (SS / PBCH) block. In some aspects, the network entity 110 may send multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.
[0069] The CSI-RS may carry information for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, etc. The network entity 110 may configure a set of CSI-RS for the UE 120, and the UE 120 may measure the configured set of CSI-RS. For example, the network entity 110 may configure a CSI-RS resource set using a CSI report setting (e.g., a CSI report configuration), and the UE 120 may perform channel measurement, interference measurement, etc. based on the configured set of CSI-RS resources. In some aspects, the CSI-RS resources may include one or more of non-zero power (NZP) CSI-RS resources for channel measurement (sometimes referred to as NZP CMR resources), CSI-RS resources for interference measurement (sometimes referred to as CSI-IM resources), or NZP CSI-RS resources for interference measurement (sometimes referred to as NZP IMR resources). The CSI reporting settings may also configure the type of CSI report to be used, sometimes referred to as a measurement report or L1 measurement report, such as one of a periodic CSI report, a semi-persistent CSI report, or an aperiodic CSI report, which is described in more detail in conjunction with FIG. 5 .
[0070] Based at least in part on these measurements, the UE 120 may perform channel estimation and may report channel estimation parameters such as a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), or a reference signal received power (RSRP), etc., to the network entity 110 (e.g., in a CSI report and / or an L1 measurement report). The network entity 110 may use the CSI report to select transmission parameters for downlink communications to the UE 120, such as the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), a modulation and coding scheme (MCS), or a refined downlink beam (e.g., using a beam refinement procedure or a beam management procedure), etc. Additional aspects of the CSI-RS and related beam management procedures are described in more detail in conjunction with FIG.
[0071] DMRS can carry information used to estimate the radio channel to demodulate the associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS can be specific to the physical channel that the DMRS is used to estimate. DMRS is UE-specific, can be beamformed, can be restricted to scheduled resources (e.g., instead of being sent over a wideband), and can be sent only when necessary. As shown, DMRS is used for both downlink and uplink communications.
[0072] PTRS can carry information for compensating oscillator phase noise. Typically, phase noise increases with increasing oscillator carrier frequency. Therefore, PTRS can be utilized at high carrier frequencies (such as millimeter wave frequencies) to mitigate phase noise. PTRS can be used to track the phase of the local oscillator and to achieve suppression of phase noise and common phase error (CPE). As shown, PTRS is used for both downlink communications (e.g., on PDSCH) and uplink communications (e.g., on PUSCH).
[0073] The PRS may carry information for implementing timing or ranging measurements of the UE 120 based on signals sent by the network entity 110 to improve observed time difference of arrival (OTDOA) positioning performance. For example, the PRS may be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern with a frequency offset and a time offset to avoid conflicts with cell-specific reference signals and control channels (e.g., PDCCH). In general, the PRS may be designed to improve the detectability of the UE 120, which may need to detect downlink signals from multiple neighboring network entities in order to perform OTDOA-based positioning. Therefore, the UE 120 may receive PRS from multiple cells (e.g., a reference cell and one or more neighboring cells), and may report a reference signal time difference (RSTD) based on OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, the network entity 110 may then calculate the position of the UE 120 based on the RSTD measurements reported by the UE 120.
[0074] The SRS may carry information for uplink channel estimation, which may be used for scheduling, link adaptation, pre-decoder selection, or beam management, among others. The network entity 110 may configure one or more SRS resource sets for the UE 120, and the UE 120 may send the SRS on the configured SRS resource sets. The SRS resource sets may have configured usages, such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operation, uplink beam management, and the like. The network entity 110 may measure the SRS, may perform channel estimation based at least in part on these measurements, and may use the SRS measurements to configure communications with the UE 120.
[0075] As indicated above, FIG4 is provided as an example. Other examples may differ from that described with respect to FIG4.
[0076] FIG5 is a diagram illustrating examples 500, 510, and 520 of a CSI-RS beam management procedure according to the present disclosure. As shown in FIG5, examples 500, 510, and 520 include UE 120 communicating with network entity 110 in a wireless network (e.g., wireless network 100). However, the device shown in FIG5 is provided as an example, and the wireless network may support communication and beam management between other devices (e.g., between UE 120 and network entity 110 or TRP, between a mobile terminal node and a control node, between an integrated access and backhaul (IAB) child node and an IAB parent node, between a scheduled node and a scheduling node). In some aspects, UE 120 and network entity 110 may be in a connected state (e.g., an RRC connected state).
[0077] As shown in FIG. 5 , example 500 may include the network entity 110 and the UE 120 communicating to perform beam management using the CSI-RS. Example 500 depicts a first beam management procedure (e.g., P1 CSI-RS beam management). The first beam management procedure may be referred to as a beam selection procedure, an initial beam acquisition procedure, a beam scanning procedure, a cell search procedure, and / or a beam search procedure. As shown in FIG. 5 and example 500, the CSI-RS may be configured to be sent from the network entity 110 to the UE 120. The CSI-RS may be configured to be periodic (e.g., using RRC signaling), semi-persistent (e.g., using medium access control (MAC) control element (MAC-CE) signaling), and / or aperiodic (e.g., using DCI).
[0078] The first beam management procedure may include the network entity 110 performing beam scanning on multiple transmit (Tx) beams. The network entity 110 may transmit a CSI-RS using each transmit beam used for beam management. In order to enable the UE 120 to perform receive (Rx) beam scanning, the network entity 110 may transmit each CSI-RS multiple times (e.g., using repetition) within the same RS resource set using a transmit beam, so that the UE 120 may sweep the receive beam in multiple transmit instances. For example, in a case where the network entity 110 has a set of N transmit beams and the UE 120 has a set of M receive beams, the CSI-RS may be transmitted M times on each of the N transmit beams, so that the UE 120 may receive M instances of the CSI-RS per transmit beam. In other words, for each transmit beam of the network entity 110, the UE 120 may perform beam scanning on the receive beam of the UE 120. Thus, the first beam management procedure may enable UE 120 to measure CSI-RS on different transmit beams using different receive beams to support selection of network entity 110 transmit beam / UE 120 receive beam beam pairs. UE 120 may report the measurements to network entity 110 to enable network entity 110 to select one or more beam pairs for communication between network entity 110 and UE 120. Although example 500 has been described in conjunction with CSI-RS, the first beam management procedure may also use SSB for beam management in a manner similar to that described above.
[0079] As shown in FIG. 5 , example 510 may include the network entity 110 and the UE 120 communicating to perform beam management (e.g., using CSI-RS). Example 510 depicts a second beam management procedure (e.g., P2 CSI-RS beam management). The second beam management procedure may be referred to as a beam refinement procedure, a network entity beam refinement procedure, a TRP beam refinement procedure, and / or a transmit beam refinement procedure. As shown in FIG. 5 and example 510, the CSI-RS may be configured to be transmitted from the network entity 110 to the UE 120. The CSI-RS may be configured to be non-periodic (e.g., using DCI). The second beam management procedure may include the network entity 110 performing beam scanning on one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with the network entity 110 (e.g., determined at least in part based on measurements reported by the UE 120 in conjunction with the first beam management procedure). The network entity 110 may transmit the CSI-RS using each of the one or more transmit beams used for beam management. The UE 120 may measure each CSI-RS using a single (e.g., identical) receive beam (e.g., determined based at least in part on measurements performed in conjunction with the first beam management procedure). The second beam management procedure may enable the network entity 110 to select the best transmit beam based at least in part on measurements of the CSI-RS reported by the UE 120 (e.g., measured by the UE 120 using a single receive beam).
[0080] As shown in FIG. 5 , example 520 depicts a third beam management procedure (e.g., P3 CSI-RS beam management). The third beam management procedure may be referred to as a beam refinement procedure, a UE beam refinement procedure, and / or a receive beam refinement procedure. As shown in FIG. 5 and example 520, one or more CSI-RS may be configured to be sent from the network entity 110 to the UE 120. The CSI-RS may be configured to be non-periodic (e.g., using DCI). The third beam management procedure may include the network entity 110 sending the one or more CSI-RS using a single transmit beam (e.g., determined at least in part based on measurements reported by the UE 120 in conjunction with the first beam management procedure and / or the second beam management procedure). In order to enable the UE 120 to perform receive beam scanning, the network entity 110 may use the transmit beam to send the CSI-RS multiple times (e.g., using repetition) within the same RS resource set so that the UE 120 can sweep across the one or more receive beams in multiple transmission instances. The one or more receive beams may be a subset of all receive beams associated with UE 120 (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure and / or the second beam management procedure). The third beam management procedure may enable network entity 110 and / or UE 120 to select the best receive beam based at least in part on reported measurements received from UE 120 (e.g., the reported measurements are measurements of a CSI-RS of a transmit beam using the one or more receive beams). In some other aspects, UE 120 and network entity 110 may perform the third beam management procedure before performing the second beam management procedure, and / or UE 120 and network entity 110 may perform a similar beam management procedure to select a UE transmit beam.
[0081] In some aspects, such as in conjunction with one of the beam management procedures described above, UE 120 may send one or more CSI reports, such as one or more L1 measurement reports, to network entity 110. The L1 measurement report may be used to report to network entity 110 one or more CSI indexes and associated measurements for the best one or more beams measured by UE 120. For example, the measurements reported in the L1 measurement report may be performed for NZP CSI-RS resources, SSB resources, CSI-IM resources, etc. Further, in some aspects, the measurements may be RSRP measurements (sometimes referred to as L1-RSRP measurements), signal-to-interference-plus-noise ratio (SINR) measurements (sometimes referred to as L1-SINR measurements), or the like.
[0082] In some aspects, the UE 120 may be configured with one or more CSI resource settings (sometimes referred to as CSI-ResourceConfig) indicating one or more resource sets (e.g., NZP CSI-RS resource sets, SSB resource sets, and / or CSI-IM resource sets) to be used to perform measurements associated with the L1 measurement report. In addition, the UE 120 may be configured with one or more CSI report settings (sometimes referred to as CSI-ReportConfig) indicating CSI-related, L1-RSRP-related, and / or L1-SINR-related quantities to be reported, which may be indicated using a report quantity parameter (sometimes referred to as reportQuantity). In some aspects, the CSI report settings may be linked to the CSI resource settings. For example, measurements associated with the periodic CSI-RS may be reported in one of a periodic L1 measurement report (e.g., via PUSCH), a semi-persistent L1 measurement report (e.g., via PUCCH activated and / or deactivated using MAC-CE, or PUSCH triggered using DCI), or an aperiodic L1 measurement report (e.g., via PUCCH). Measurements associated with the semi-persistent CSI-RS may be reported in one of a semi-persistent L1 measurement report or an aperiodic L1 measurement report. And measurements associated with the aperiodic CSI-RS may be reported in an aperiodic L1 measurement report.
[0083] In addition, in some aspects, aperiodic CSI-RS and / or semi-persistent CSI-RS may be associated with one or more trigger states that activate the corresponding CSI-RS (and therefore the corresponding L1 measurement report). For example, each trigger state associated with an aperiodic trigger may include a list of associated CSI report settings (e.g., CSI-ReportConfig) indicating CSI resource set identifiers to be used for channel measurements and / or interference measurements. And each trigger state associated with a semi-persistent trigger may include one associated CSI report setting. In some aspects, the triggering of aperiodic or semi-persistent CSI-RS may be configured by an RRC message and thereafter may be signaled using a DCI for an aperiodic or semi-persistent measurement report to be sent in the PUSCH and a MAC-CE for a semi-persistent measurement report to be sent in the PUCCH. In some aspects, L1-RSRP measurement may be configured with a resource setup (e.g., CSI-ResourceConfig) with up to 16 CSI-RS resource sets, with up to 64 CSI-RS resources in each resource set (e.g., L1-RSRP measurement may be configured with up to 128 CSI resources), and L1-SINR measurement may be configured with a resource setup with up to 64 CSI-RS resources or up to 64 SSBs. In addition, when performing L1-SINR measurement, UE 120 may be configured with a combination of CMR resources and IMR resources, such as a combination of an NZP CSI-RS for CMR and the same NZP CSI-RS for IMR, a combination of SSB for CMR and zero power (ZP) CSI-RS for IMR, a combination of SSB for CMR and NZP CSI-RS for IMR, a combination of NZP CSI-RS for CMR and ZP CSI-RS for IMR, or one of a combination of an NZP CSI-RS for CMR and another NZP CSI-RS for IMR.
[0084] In some aspects, UE 120 may be able to send group-based beam reports (e.g., group-based L1 measurement reports). Group-based beam reporting may allow UE 120 to report measurements associated with multiple beams that UE 120 is able to receive simultaneously, such as if UE 120 is able to receive multiple beams on multiple panels, if UE 120 is able to receive multiple reflected transmit beams using the same panel, etc. In some aspects, group-based beam reporting may enable network entity 110 to send communications to UE 120 via two beams and / or may enable network entity 110 to switch transmit beams within a beam group with minimal delay.
[0085] If group-based beam reporting is disabled, the UE 120 may report multiple different CRIs or SS / PBCH block resource indications (SSBRIs) for each reporting setting, and if group-based beam reporting is enabled, the UE 120 may report two different CRIs or SSBRIs for each reporting setting. In either case, the L1 measurement report may include an indication of the value of the maximum measurement (e.g., the measurement of the strongest beam) quantized into seven bits and an associated CRI or SSBRI (which may be six bits in some aspects). In addition, for each remaining measurement to be reported, the L1 measurement report may include an indication of the difference between the measurement and the maximum measurement quantized into four bits and an associated CRI or SSBRI (which may also be six bits). The time between the reception of a downlink reference signal (e.g., CSI-RS or SSB) and the uplink transmission of the L1 measurement report may be configured by the network entity 110 via a beam report timing parameter (sometimes referred to as beamReportTiming).
[0086] In some cases, consecutively sent L1 measurement reports may be very similar and / or may indicate little to no change in the measurement value and / or associated CRI, SSBRI, etc. In other words, the UE 120 may send multiple consecutive L1 measurement reports indicating a measurement change of 0 dB from report to report. As described, certain L1 measurement reports may be associated with numerous reference signals and / or multiple configured settings, resulting in a large payload and, therefore, a large overhead, even when the L1 measurement reports convey little or no new information to the network entity 110. However, even when the measurements remain relatively static, the network entity 110 may still require a certain amount of L1 measurement reports to be sent in order to perform filtering and / or averaging of measurements across multiple L1 measurement reports, resulting in high overhead and, therefore, high latency, low throughput, and inefficient use of network resources.
[0087] Some techniques and apparatus described herein enable reducing overhead associated with beam reports, such as the L1 measurement reports described above. In some aspects, the UE 120 may send a light L1 measurement report (rather than a normal L1 measurement report), which may omit certain information contained in the normal L1 measurement report and / or may contain information different from that contained in the normal L1 measurement report, and thus may be associated with a reduced payload (and thus reduced overhead) compared to the normal measurement report. In some aspects, the UE 120 may send a light L1 measurement report when certain conditions are met, such as when the measurement associated with the light L1 measurement report is within a certain tolerance compared to the measurement associated with the previously sent report (e.g., when the measurement remains relatively static), etc. Thus, a consistent L1 measurement report may be provided to the network entity 110 for purposes of measurement filtering, averaging, etc., while reducing overhead associated with such reports. Reducing overhead associated with L1 measurement reports may result in reduced latency, increased throughput, and otherwise more efficient use of network resources.
[0088] As indicated above, FIG5 is provided as an example. Other examples may differ from what is described with respect to FIG5.
[0089] FIG. 6 is a diagram illustrating an example 600 of a lightweight L1 measurement reporting procedure according to the present disclosure.
[0090] As shown in the graph indicated by reference numeral 605, UE 120 may perform L1 measurements (sometimes referred to herein as measuring L1 parameters), such as L1-RSRP measurements, L1-SINR measurements, etc., where the graph indicated by reference numeral 610 represents L1 measurements over time. As shown, L1 measurements may fluctuate over time. UE 120 may be configured with CSI-RS resources, etc. for performing various instances of L1 measurements, such as via CSI reporting settings received from network entity 110, as described in conjunction with FIGS. 4 and 5. In some aspects, UE 120 may perform an initial measurement of L1 parameters (indicated by reference numeral 615), and thereafter may perform periodic, semi-persistent, or aperiodic measurements of L1 parameters according to the configuration received from network entity 110.
[0091] In some aspects, the UE 120 may determine an L1 measurement tolerance (shown as "Tol." in FIG. 6 ) based at least in part on the initial measurement of the L1 parameters. The L1 measurement tolerance may be defined by an upper threshold value shown by reference numeral 620 and a lower threshold value shown by reference numeral 625. The upper threshold value and the lower threshold value may be determined based at least in part on the initial measurement of the L1 parameters. For example, the upper threshold value and / or the lower threshold value may be configured to be located at a specific offset from the initial measurement of the L1 parameters, as shown by reference numeral 615.
[0092] The UE 120 may periodically determine different L1 measurement tolerances (e.g., different upper and / or lower thresholds) based at least in part on the measured L1 parameter exceeding an initially determined upper threshold or falling below an initially determined lower threshold. For example, as shown at reference numeral 630, the measurement of the L1 parameter may fall below an initially determined lower threshold (as shown at reference numeral 625). Thus, the UE 120 may determine another L1 measurement tolerance defined by a new upper threshold (as shown at reference numeral 635) and a new lower threshold (as shown at reference numeral 640). The new upper threshold and the new lower threshold may be determined based at least in part on the measurement of the L1 parameter indicated at reference numeral 630. For example, the new upper threshold and / or the new lower threshold may be configured to be located at a specific offset from the measurement of the L1 parameter, which may be the same offset as the offset used to determine the initially determined upper and / or lower thresholds.
[0093] As indicated by reference numeral 645, the UE 120 may send an L1 measurement report to the network entity 110 based at least in part on the measurement of the L1 parameters and / or based at least in part on the configuration of the L1 measurement report (e.g., one or more CSI reporting settings) received from the network entity 110. In some aspects, the UE 120 may send a normal L1 measurement report, as indicated by reference numerals 650a-650f, and in some other aspects, the UE 120 may send a light L1 measurement report, as indicated by reference numerals 655a-655g. The normal L1 measurement report may be an L1 measurement report that includes information that is typically sent to the network entity 110 under the legacy reporting procedure, such as one or more CSI indexes and associated measurements (e.g., L1-RSRP measurements and / or L1-SINR measurements, etc.), one or more CQIs, one or more PMIs, one or more CRIs, one or more LIs, one or more RIs, etc.
[0094] On the other hand, the light L1 measurement report may be based at least in part on a previously sent normal L1 measurement report (e.g., may rely on it and / or indicate certain information related thereto), and thus may omit certain information compared to a normal L1 measurement report and / or may send different information than a normal L1 measurement report. The light L1 measurement report may be used to indicate to the network entity 110 that the L1 measurement and / or related parameters have little or no change compared to a previously sent normal L1 measurement report, without including all of the information transmitted in the normal L1 measurement report. In this manner, the light L1 measurement report may be associated with a smaller payload and reduced overhead compared to a normal L1 measurement report. For example, in some aspects, if the measurement of the L1 parameter has little or no change compared to the measurement included in the previously sent normal L1 measurement report, the UE 120 may send a light L1 measurement report indicating a small change (e.g., signaling an offset from the previously sent measurement), signaling "no change", etc. Additionally or alternatively, in some aspects, the light L1 measurement report may indicate one or more actual L1 measurements and / or one or more reference signal indices, while in some other aspects, the light L1 measurement report may omit one or more actual L1 measurements and / or one or more reference signal indices.
[0095] In some aspects, the UE 120 may send a light L1 measurement report in response to satisfying one or more light L1 measurement report conditions. For example, one light L1 measurement report condition may be that the L1 measurement (e.g., L1-RSRP and / or L1-SINR) is within a measurement tolerance (e.g., "Tol." in FIG. 6 ) compared to a measurement associated with a previously sent normal L1 measurement report. More specifically, the UE 120 may perform an initial L1 measurement (indicated by reference numeral 615) and accordingly send a normal L1 measurement report (indicated by reference numeral 650a) to the network entity 110. Furthermore, in some aspects, the UE 120 may be configured to transmit a plurality of consecutive normal L1 measurement reports to the network entity 110 before sending any light L1 measurement reports. For example, if the network entity 110 determines that there may be some probability that an initial normal L1 measurement report (e.g., the normal L1 measurement report shown by reference numeral 650a) does not arrive at the network entity 110 (which may render any subsequently transmitted light L1 measurement reports useless to the network entity 110), the UE 120 may be configured to send a configurable number (in the depicted example, two) of normal L1 measurement reports to the network entity 110 before sending any light L1 measurement reports. Thus, as shown by reference numerals 650a and 650b, in the depicted example, the UE 120 may send two consecutive normal L1 measurement reports.
[0096] As indicated by reference numeral 655a, the UE 120 may thereafter send a light L1 measurement report as long as certain light L1 measurement report conditions are met. For example, in response to determining that the measured L1 parameter is within the L1 measurement tolerance (e.g., in response to determining that the measured L1 parameter does not exceed the upper threshold indicated by reference numeral 620 and does not fall below the lower threshold indicated by reference numeral 625), the UE 120 may send a light L1 measurement report, as indicated by reference numerals 655a-655d. Again, the light L1 measurement report may be associated with reduced overhead compared to a normal L1 measurement report, and / or may include information related to and / or indicated relative to information sent in a previously transmitted normal L1 measurement report. In some aspects, one or more light L1 measurement report conditions may apply to all measured resources, while in some other aspects, one or more light L1 measurement report conditions may apply to only a subset of the measured resources. For example, in some aspects, to transmit a light L1 measurement report, the measurement of each of the received CSI-RS must be within the tolerance shown at reference numeral 605 in the graph, while in some other aspects, to transmit a light L1 measurement report, only the measurement of the highest CSI-RS among the received CSI-RS must be within the tolerance shown at reference numeral 605 in the graph, regardless of the measurements of the other received CSI-RS.
[0097] In some aspects, the UE 120 may be configured to send a normal L1 measurement report even if one or more light L1 measurement report conditions are met. For example, as shown by reference numeral 650c, the UE 120 may be configured to send a normal L1 measurement report after each configurable number (three in the depicted example) of light L1 measurement reports even if one or more light L1 measurement conditions are still met. Thus, in the depicted example, the UE 120 may send a normal L1 measurement report (e.g., the normal L1 measurement report indicated by reference numeral 650c) between the third light L1 measurement report and the fourth light L1 measurement report (e.g., the light L1 measurement reports indicated by reference numerals 655c and 655d).
[0098] In some aspects, the UE 120 may continue in this manner (e.g., sending a light L1 measurement report and optionally sending a normal L1 measurement report every configurable number of light L1 measurement reports) as long as one or more light L1 measurement reporting conditions are met. However, when channel conditions change and / or when one or more light L1 measurement reporting conditions are no longer met, the UE 120 may send a normal L1 measurement report to provide the network entity with new CSI and related information for the changed channel. For example, as indicated by reference numeral 660, the measurement of the L1 parameter may fall outside of a tolerance, such as by falling below a lower threshold indicated by reference numeral 625. In this regard, the UE 120 may determine a new tolerance based at least in part on the measurement indicated by reference numeral 630, as described above.
[0099] In addition, based at least in part on one or more light L1 measurement conditions no longer being met (e.g., based at least in part on the L1 measurement differing from a previous L1 measurement by more than a threshold amount), the UE 120 may send a normal L1 measurement report, as indicated by 650d. Based on the changed channel conditions (e.g., based on the L1 measurement dropping by more than a threshold amount), the normal L1 measurement report may provide updated CSI to the network entity. In addition, and as described above in conjunction with reference numeral 650b, in an aspect in which the UE 120 is configured to send a configurable number (in the depicted example, two) of normal L1 measurement reports to the network entity 110 before sending any light L1 measurement reports, the UE 120 may send two consecutive normal L1 measurement reports in response to the changed channel conditions, as indicated by reference numerals 650d and 650e. Thereafter, if one or more light L1 measurement conditions are met, the UE 120 may send a light L1 measurement report, as indicated by reference numerals 655e-655g. Furthermore, in aspects where the UE 120 is configured to send a normal L1 measurement report after every configurable number (three in the depicted example) of light L1 measurement reports, the UE 120 may send a normal L1 measurement report, as indicated by reference numeral 650f, even if one or more light L1 measurement conditions are still met.
[0100] In some aspects, the network entity 110 may configure the UE 120 to send additional normal L1 measurement reports even if one or more light L1 measurement report conditions are met. For example, in response to at least one of the network entity 110 or the UE 120 detecting that a beam failure may be imminent, the network entity 110 may configure the UE 120 to send one or more normal L1 measurement reports so that the network entity 110 can receive CSI associated with other beams, etc. in preparation for switching the transmit beam. Additionally or alternatively, if the L1 measurement drops below a certain threshold, thereby indicating a relatively weak connection, the network entity 110 may configure the UE 120 to send one or more normal L1 measurement reports so that the network entity 110 can receive CSI associated with other beams, etc. in preparation for providing a stronger connection. Additionally or alternatively, if the L1 measurement report payload meets a certain threshold, the network entity 110 may configure the UE 120 to send one or more normal L1 measurement reports. For example, if the payload size of the normal L1 measurement report is below a certain threshold, indicating that the normal L1 measurement report is not associated with a large overhead, the network entity 110 may configure the UE 120 to send the normal L1 measurement report instead of the light L1 measurement report.
[0101] In some aspects, the UE 120 may indicate to the network entity 110 that the L1 measurement report (e.g., one of the measurement reports indicated by reference numerals 655a-655g) is a light L1 measurement report. For example, the UE 120 may indicate to the network entity 110 via discontinuous transmission (DTX) that the light L1 measurement report is being used (e.g., by not sending the report). That is, in some aspects, if there is no change in the L1 measurement from report to report, the UE 120 may simply not send in the L1 reporting opportunity, which may indicate to the network entity 110 that the UE 120 is using the light L1 measurement report and / or that there is no measurement change since the previously sent normal L1 measurement report. Additionally or alternatively, the UE 120 may indicate to the network entity 110 that the light L1 measurement report is being used by utilizing sequence-based transmission. That is, UE 120 may send one or more signals in a specific sequence to indicate that light L1 measurement reporting is being used, such as sending a specific sequence of DMRS in an existing uplink channel (eg, one of PUSCH or PUCCH).
[0102] Additionally or alternatively, UE 120 may indicate to network entity 110 that light L1 measurement reporting is being utilized based at least in part on the size of the L1 measurement report sent to network entity 110. For example, the light L1 measurement report may be associated with a smaller number of resource blocks (RBs) than a normal L1 measurement report and / or a smaller number of symbols than a normal L1 measurement report. More specifically, for PUCCH formats having more than one RB, the light L1 measurement report may occupy fewer RBs than a normal L1 measurement report, thereby indicating to network entity 110 that light L1 measurement reporting is being used. Similarly, for PUCCH formats having more than one symbol, the light L1 measurement report may occupy fewer symbols than a normal L1 measurement report, thereby indicating to network entity 110 that light L1 measurement reporting is being used.
[0103] Additionally or alternatively, the UE 120 may indicate to the network entity 110 that the light L1 measurement report is being used based at least in part on the format of the uplink channel used to send the L1 measurement report. For example, the UE 120 may send the light L1 measurement report using a different PUCCH format than a PUCCH format used to send the normal L1 measurement report. Additionally or alternatively, the UE 120 may indicate to the network entity 110 that the light L1 measurement report is being used based at least in part on an indication provided in a communication for a different uplink purpose. For example, the UE 120 may include an indication that the light L1 measurement report is to be sent in a MAC-CE sent in a configured grant uplink resource, etc.
[0104] Based at least in part on UE 120 sending the light L1 measurement report, UE 120 and / or network entity 110 can save computational resources, power resources, network resources, and / or communication resources that might otherwise be consumed when only sending normal L1 measurement reports. For example, based at least in part on UE 120 sending the light L1 measurement report when one or more light L1 measurement report conditions are met, UE 120 and network entity 110 can communicate with reduced overhead, which can save computational, power, network, and / or communication resources that might otherwise be used to send normal L1 measurement reports, even when the channel is relatively static and / or the L1 measurement has little or no change from report to report.
[0105] As indicated above, FIG6 is provided as an example. Other examples may differ from that described with respect to FIG6.
[0106] FIG. 7 is a diagram illustrating an example 700 associated with sending a lightweight L1 measurement report according to the present disclosure. As shown in FIG. 7 , UE 120 and network entity 110 may communicate with each other. In some aspects, UE 120 and network entity 110 may be part of a wireless network (e.g., wireless network 100). UE 120 and network entity 110 may have established a wireless connection prior to the operations shown in FIG. 7 , such as by using one or more of the beam management procedures described in conjunction with FIG. 5 .
[0107] As indicated by reference numeral 705, UE 120 may receive configuration information from network entity 110. In some aspects, UE 120 may receive the configuration information via one or more of RRC signaling, one or more MAC-CEs, and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by UE 120 (e.g., already known to UE 120 and / or previously indicated by network entity 110 or other network devices), and / or explicit configuration information for UE 120 to use to configure UE 120, etc.
[0108] In some aspects, the configuration information may include configurations of one or more CSI reports (e.g., one or more CSI report settings). As described above in conjunction with FIGS. 4 to 6 , the configurations of the one or more CSI reports may include configurations of one or more CSI-RS resource sets for performing L1 measurements (e.g., L1-RSRP measurements, L1-SINR measurements, etc.), and / or configurations of one or more uplink resources for sending L1 measurement reports associated with the L1 measurements to the network entity 110. In this regard, and as indicated by reference numeral 710, the UE 120 may send a normal L1 measurement report to the network entity 110. For example, the UE 120 may measure one or more CSI-RS, etc. and send a corresponding normal L1 measurement report to the network entity 110, such as one of the normal L1 measurement reports described in conjunction with reference numerals 650a-650f. The UE 120 may configure itself based at least in part on the configuration information. In some aspects, the UE 120 may be configured to perform one or more operations described herein based at least in part on the configuration information.
[0109] As indicated by reference numeral 715, UE 120 may perform measurements of one or more reference signals associated with the L1 measurement report. For example, UE 120 may perform L1-RSRP measurements, L1-SINR measurements, etc. In addition, and as indicated by reference numeral 720, UE 120 may send a light L1 measurement report associated with the measurement of one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions. As described in conjunction with FIG. 6, in some aspects, the light L1 measurement report may be based at least in part on a previously sent normal L1 measurement report (e.g., the light L1 measurement report may be based at least in part on the normal L1 measurement report described in conjunction with reference numeral 710). In addition, in some aspects, the light L1 measurement report may be associated with a reduced payload and / or reduced overhead compared to the normal L1 measurement report. More specifically, the light L1 measurement report may be associated with a reduced payload and / or reduced overhead by omitting at least some information sent in a previously sent normal L1 measurement report, or by including different information than a previously sent normal L1 measurement report. In addition, in some aspects, the light L1 measurement report may include at least one of a reference signal measurement value or a reference signal index indication, while in some other aspects, the light L1 measurement report may omit at least one of the reference signal measurement value or the reference signal index indication.
[0110] In some aspects, one or more light L1 measurement reporting conditions may correspond to any of the conditions described above in conjunction with FIG6 or similar conditions. For example, the one or more light L1 measurement reporting conditions may include that a measurement of one or more reference signals (e.g., one or more CSI-RS) differs from a measurement of one or more previously received reference signals by less than a threshold amount (e.g., less than an upper threshold described in conjunction with reference numerals 620 and 635, and / or less than a lower threshold described in conjunction with reference numerals 625 and 640). In some aspects, the measurement of one or more previously received reference signals may be associated with a previously sent normal L1 measurement report (e.g., a normal L1 measurement report described in conjunction with reference numeral 710).
[0111] As described in conjunction with FIG6 , one or more light L1 measurement reporting conditions may apply to all measured resources, or one or more light L1 measurement reporting conditions may apply only to a subset of measured resources. More specifically, the one or more reference signals may include a plurality of reference signals, and in some aspects, the one or more light L1 measurement reporting conditions may include that a measurement of each of the plurality of reference signals differs from a measurement of a corresponding reference signal in one or more previously received reference signals by less than a threshold amount. However, in some other aspects, the one or more light L1 measurement reporting conditions may include that a measurement of a subset of reference signals in the plurality of reference signals (e.g., a maximum CSI-RS) differs from a measurement of a corresponding subset of reference signals in one or more previously received reference signals by less than a threshold amount.
[0112] As indicated by reference numeral 725, in some aspects, the UE 120 may perform measurements of one or more additional reference signals (e.g., one or more additional CSI-RS). Furthermore, as indicated by reference numeral 730, the UE 120 may send another normal L1 measurement report associated with the measurement of the one or more additional reference signals to the network entity 110 based at least in part on the measurement of the one or more additional reference signals failing to satisfy one or more light L1 measurement report conditions. For example, the UE 120 may send the normal L1 measurement report described in conjunction with reference numeral 650d in response to the L1 measurement falling below the lower threshold indicated by reference numeral 625.
[0113] In some aspects, the UE 120 may receive a configuration indicating that one or more normal L1 measurement reports should be sent from the network entity 110. For example, the UE 120 may receive the configuration indicating that one or more normal L1 measurement reports should be sent as part of the configuration information described in conjunction with reference numeral 705, or the UE 120 may receive the configuration indicating that one or more normal L1 measurement reports should be sent in another configuration communication (such as another RRC message, a MAC-CE message, a DCI message, etc.).
[0114] In some aspects, a configuration indicating that one or more normal L1 measurement reports should be sent may indicate that sending a light L1 measurement report is allowed after sending a consecutive number of normal L1 measurement reports. For example, a configuration may indicate that a light L1 measurement report (e.g., a light L1 measurement report described in conjunction with reference numerals 655a) may be sent after sending two consecutive normal L1 measurement reports (e.g., the normal L1 measurement reports described in conjunction with reference numerals 650a and 650b). Additionally or alternatively, a configuration indicating that one or more normal L1 measurement reports should be sent may indicate that a normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports. For example, a configuration may indicate that a normal L1 measurement report should be sent after sending three consecutive light L1 measurement reports, as described in conjunction with the normal L1 measurement reports indicated by reference numerals 650c and 650f.
[0115] Additionally or alternatively, the configuration indicating that one or more normal L1 measurement reports should be sent may indicate that the subsequently sent measurement report should be another normal L1 measurement report based on channel conditions, etc. For example, the configuration may indicate that the subsequently sent measurement report should be another normal L1 measurement report based at least in part on beam failure detection by UE 120 and / or network entity 110, measurement of one or more reference signals not satisfying a measurement threshold, and / or a payload size associated with the subsequently sent measurement report satisfying a payload threshold, as described above in conjunction with FIG. 6 .
[0116] In some aspects, the UE 120 may indicate to the network entity 110 that a light L1 measurement report is being sent as described in conjunction with reference numeral 720. More specifically, and as described in more detail in conjunction with FIG6 , the light L1 measurement report may be indicated to the network entity 110 using at least one of DTX, communications including one or more signals sent in a particular sequence, communications associated with a reduced number of RBs, communications associated with a reduced number of symbols, communications associated with a particular PUCCH format, or an indication provided in communications for a different purpose (e.g., MAC-CE communications).
[0117] As indicated above, FIG7 is provided as an example. Other examples may differ from that described with respect to FIG7.
[0118] 8 is a diagram illustrating an example process 800, performed, for example, by a UE, in accordance with the present disclosure. Example process 800 is an example in which a UE (eg, UE 120) performs operations associated with lightweight L1 measurement reporting.
[0119] As shown in FIG8, in some aspects, process 800 may include performing measurements of one or more reference signals associated with the L1 measurement report (block 810). For example, the UE (e.g., using the communication manager 1008 and / or the measurement component 1010 depicted in FIG10) may perform measurements of one or more reference signals associated with the L1 measurement report, as described above.
[0120] As further shown in FIG. 8 , in some aspects, process 800 may include sending a light L1 measurement report associated with measurement of one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report (block 820). For example, a UE (e.g., using the communication manager 1008 and / or the sending component 1004 depicted in FIG. 10 ) may send a light L1 measurement report associated with measurement of one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of: omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report, as described above.
[0121] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0122] In a first aspect, the one or more light L1 measurement report conditions include that the measurement of the one or more reference signals differs from a measurement of one or more previously received reference signals by less than a threshold amount, and the measurement of the one or more previously received reference signals is associated with the previously sent normal L1 measurement report.
[0123] In a second aspect, either alone or in combination with the first aspect, the one or more reference signals include a plurality of reference signals, and the one or more light L1 measurement reporting conditions include a measurement of each of the plurality of reference signals differing from a measurement of a corresponding reference signal of the one or more previously received reference signals by less than the threshold amount.
[0124] In a third aspect, either alone or in combination with one or more of the first and second aspects, the one or more reference signals include multiple reference signals, and the one or more light L1 measurement reporting conditions include that measurements of a subset of reference signals in the multiple reference signals differ from measurements of a corresponding subset of reference signals in the one or more previously received reference signals by less than the threshold amount.
[0125] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 800 includes: performing measurements of one or more additional reference signals; and sending another normal L1 measurement report associated with the measurement of the one or more additional reference signals based at least in part on the measurement of the one or more additional reference signals failing to satisfy the one or more light L1 measurement report conditions.
[0126] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 800 includes receiving a configuration indicating that the one or more normal L1 measurement reports should be sent.
[0127] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the configuration indicates that sending the light L1 measurement report is allowed after sending a consecutive number of normal L1 measurement reports.
[0128] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the configuration indicates that a normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports.
[0129] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the light L1 measurement report includes at least one of a reference signal measurement value or a reference signal index indication.
[0130] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the light L1 measurement report omits at least one of a reference signal measurement value or a reference signal index indication.
[0131] In a tenth aspect, either alone or in combination with one or more of aspects 1 to 9, process 800 includes receiving a configuration indicating that a subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of: beam failure detection, the measurement of one or more reference signals does not satisfy a measurement threshold, or a payload size associated with the subsequently sent measurement report satisfies a payload threshold.
[0132] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 800 includes indicating to a network entity that the lightweight L1 measurement report is being sent.
[0133] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, at least one of the following is used to indicate the lightweight L1 measurement report to the network entity: discontinuous transmission, communication comprising one or more signals sent in a specific sequence, communication associated with a reduced number of resource blocks, communication associated with a reduced number of symbols, communication associated with a specific physical uplink control channel format, or an indication provided in a communication for a different purpose.
[0134] Although Figure 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or blocks arranged differently than those depicted in Figure 8. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0135] 9 is a diagram illustrating an example process 900, performed, for example, by a network entity, in accordance with the present disclosure. Example process 900 is an example in which a network entity (eg, network entity 110) performs operations associated with lightweight layer 1 measurement reporting.
[0136] As shown in FIG9, in some aspects, process 900 may include receiving a normal L1 measurement report from the UE (block 910). For example, the network entity (e.g., using the communication manager 1108 and / or receiving component 1102 depicted in FIG11) may receive the normal L1 measurement report from the UE, as described above.
[0137] As further shown in FIG. 9 , in some aspects, process 900 may include receiving a light L1 measurement report from a UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on a normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in a normal L1 measurement report or includes information different from information sent in a normal L1 measurement report (block 920). For example, a network entity (e.g., using the communications manager 1108 and / or receiving component 1102 depicted in FIG. 11 ) may receive a light L1 measurement report from a UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on a normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in a normal L1 measurement report or includes information different from information sent in a normal L1 measurement report, as described above.
[0138] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0139] In a first aspect, the one or more light L1 measurement report conditions include that the measurement of the one or more reference signals differs from a measurement of one or more previously transmitted reference signals by less than a threshold amount, and the measurement of the one or more previously transmitted reference signals is associated with the normal L1 measurement report.
[0140] In a second aspect, either alone or in combination with the first aspect, the one or more reference signals include a plurality of reference signals, and the one or more light L1 measurement reporting conditions include a measurement of each of the plurality of reference signals differing from a measurement of a corresponding reference signal of the one or more previously transmitted reference signals by less than the threshold amount.
[0141] In a third aspect, either alone or in combination with one or more of the first and second aspects, the one or more reference signals include multiple reference signals, and the one or more light L1 measurement reporting conditions include that measurements of a subset of reference signals in the multiple reference signals differ from measurements of a corresponding subset of reference signals in the one or more previously sent reference signals by less than the threshold amount.
[0142] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 900 includes receiving, from the UE, another normal L1 measurement report associated with measurement of one or more additional reference signals based at least in part on the measurement of the one or more additional reference signals failing to satisfy the one or more light L1 measurement reporting conditions.
[0143] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the process 900 includes sending a configuration to the UE indicating that the one or more normal L1 measurement reports should be sent.
[0144] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the configuration indicates that sending the light L1 measurement report is allowed after sending a consecutive number of normal L1 measurement reports.
[0145] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the configuration indicates that another normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports.
[0146] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the light L1 measurement report includes at least one of a reference signal measurement value or a reference signal index indication.
[0147] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the light L1 measurement report omits at least one of a reference signal measurement value or a reference signal index indication.
[0148] In a tenth aspect, either alone or in combination with one or more of aspects 1 to 9, process 900 includes sending a configuration to the UE indicating that a subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of: beam failure detection, the measurement of one or more reference signals does not satisfy a measurement threshold, or a payload size associated with the subsequently sent measurement report satisfies a payload threshold.
[0149] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 900 includes receiving an indication from the UE that the light L1 measurement report is being sent.
[0150] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the indication that the light L1 measurement report is being sent is associated with at least one of: discontinuous transmission, communication comprising one or more signals sent in a specific sequence, communication associated with a reduced number of resource blocks, communication associated with a reduced number of symbols, communication associated with a specific physical uplink control channel format, or an indication provided in a communication for a different purpose.
[0151] Although Figure 9 shows example blocks of process 900, in some aspects, process 900 may include additional blocks, fewer blocks, different blocks, or blocks arranged differently than those depicted in Figure 9. Additionally or alternatively, two or more of the blocks of process 900 may be performed in parallel.
[0152] FIG. 10 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a UE (e.g., UE 120), or a UE may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a communication manager 1008 (e.g., communication manager 140). Communication manager 1008 may include a measurement component 1010 and / or an indication component 1012, among other things.
[0153] In some aspects, the device 1000 may be configured to perform one or more operations described herein in conjunction with Figures 6 to 7. Additionally or alternatively, the device 1000 may be configured to perform one or more processes described herein, such as process 800 of Figure 8. In some aspects, the device 1000 and / or one or more components shown in Figure 10 may include one or more components of the UE 120 described in conjunction with Figure 2. Additionally or alternatively, one or more components shown in Figure 10 may be implemented within one or more components described in conjunction with Figure 2. Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0154] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1000. In some aspects, the receiving component 1002 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the UE 120 described in conjunction with FIG. 2.
[0155] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1006. In some aspects, one or more other components of the device 1000 may generate communications, and the generated communications may be provided to the transmitting component 1004 for transmission to the device 1006. In some aspects, the transmitting component 1004 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications, and may transmit the processed signals to the device 1006. In some aspects, the transmitting component 1004 may include one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the UE 120 described in conjunction with FIG. 2. In some aspects, the transmitting component 1004 may be co-located with the receiving component 1002 in a transceiver.
[0156] The measuring component 1010 can perform measurements of one or more reference signals associated with the L1 measurement report. The sending component 1004 can send a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the previously sent normal L1 measurement report, or includes different information from the previously sent normal L1 measurement report.
[0157] Measuring component 1010 can perform measurement of one or more additional reference signals.Sending component 1004 can send another normal L1 measurement report associated with measurement of one or more additional reference signals based at least in part on the measurement of one or more additional reference signals failing to satisfy one or more light L1 measurement report conditions.
[0158] Receiving component 1002 can receive a configuration indicating that one or more normal L1 measurement reports should be sent. Receiving component 1002 can receive a configuration indicating that a subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of beam failure detection, measurement of one or more reference signals not satisfying a measurement threshold, or a payload size associated with the subsequently sent measurement report satisfying a payload threshold. Indicating component 1012 can indicate to a network entity that a light L1 measurement report is being sent.
[0159] The number and arrangement of the components shown in Figure 10 are provided as examples. In practice, there may be additional components, fewer components, different components, or components arranged in a different manner than those shown in Figure 10. In addition, two or more components shown in Figure 10 may be implemented within a single component, or a single component shown in Figure 10 may be implemented as multiple distributed components. Additionally or alternatively, a component set (one or more components) shown in Figure 10 may perform one or more functions described as being performed by another component set shown in Figure 10.
[0160] FIG. 11 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. Apparatus 1100 may be a network entity (e.g., network entity 110), or a network entity may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a sending component 1104, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using receiving component 1102 and sending component 1104. As further shown, apparatus 1100 may include a communication manager 1108 (e.g., communication manager 150). Communication manager 1108 may include configuration component 1110, etc.
[0161] In some aspects, the device 1100 may be configured to perform one or more operations described herein in conjunction with Figures 6 to 7. Additionally or alternatively, the device 1100 may be configured to perform one or more processes described herein, such as process 900 of Figure 9. In some aspects, the device 1100 and / or one or more components shown in Figure 11 may include one or more components of the network entity 110 described in conjunction with Figure 2. Additionally or alternatively, one or more components shown in Figure 11 may be implemented within one or more components described in conjunction with Figure 2. Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0162] The receiving component 1102 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1106. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1100. In some aspects, the receiving component 1102 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the network entity 110 described in conjunction with FIG. 2.
[0163] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1106. In some aspects, the transmitting component 1104 may include one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof, of the network entity 110 described in conjunction with FIG. 2. In some aspects, the transmitting component 1104 may be co-located with the receiving component 1102 in a transceiver.
[0164] The receiving component 1102 can receive a normal L1 measurement report from a UE, such as the UE 120. The receiving component 1102 can receive a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report at least one of omits at least some information sent in the normal L1 measurement report or includes information that is different from information sent in the normal L1 measurement report.
[0165] Receiving component 1102 can receive from the UE another normal L1 measurement report associated with measurement of the one or more additional reference signals based at least in part on the measurement of the one or more additional reference signals failing to satisfy one or more light L1 measurement reporting conditions. Receiving component 1102 can receive from the UE an indication that a light L1 measurement report is being sent.
[0166] The transmitting component 1104 and / or the configuring component 1110 can transmit a configuration to the UE indicating that one or more normal L1 measurement reports should be transmitted. The transmitting component 1104 and / or the configuring component 1110 can transmit a configuration to the UE indicating that a subsequently transmitted measurement report should be another normal L1 measurement report based at least in part on at least one of beam failure detection, measurement of one or more reference signals not satisfying a measurement threshold, or a payload size associated with the subsequently transmitted measurement report satisfying a payload threshold.
[0167] The number and arrangement of the components shown in Figure 11 are provided as examples. In practice, there may be additional components, fewer components, different components, or components arranged in a different manner than those shown in Figure 11. In addition, two or more components shown in Figure 11 may be implemented within a single component, or a single component shown in Figure 11 may be implemented as multiple distributed components. Additionally or alternatively, a component set (one or more components) shown in Figure 11 may perform one or more functions described as being performed by another component set shown in Figure 11.
[0168] The following provides an overview of some aspects of the disclosure:
[0169] Aspect 1: A method of wireless communication performed by a UE, the method comprising: performing measurements of one or more reference signals associated with an L1 measurement report; and sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is at least in part based on a previously sent normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omitting at least some information sent in the previously sent normal L1 measurement report, or including information different from the previously sent normal L1 measurement report.
[0170] Aspect 2: A method according to Aspect 1, wherein the one or more light L1 measurement report conditions include that the measurement of the one or more reference signals differs from the measurement of one or more previously received reference signals by less than a threshold amount, wherein the measurement of the one or more previously received reference signals is associated with the previously sent normal L1 measurement report.
[0171] Aspect 3: A method according to Aspect 2, wherein the one or more reference signals include multiple reference signals, and wherein the one or more light L1 measurement reporting conditions include that the measurement of each reference signal in the multiple reference signals differs from the measurement of the corresponding reference signal in the one or more previously received reference signals by less than the threshold amount.
[0172] Aspect 4: A method according to Aspect 2, wherein the one or more reference signals include multiple reference signals, and wherein the one or more light L1 measurement reporting conditions include that the measurement of a subset of reference signals in the multiple reference signals differs from the measurement of a corresponding subset of reference signals in the one or more previously received reference signals by less than the threshold amount.
[0173] Aspect 5: According to the method described in any one of Aspects 1 to 4, the method further includes: performing measurements on one or more additional reference signals; and sending another normal L1 measurement report associated with the measurement of the one or more additional reference signals based at least in part on the fact that the measurement of the one or more additional reference signals fails to satisfy the one or more light L1 measurement report conditions.
[0174] Aspect 6: The method according to any one of aspects 1 to 5, further comprising receiving a configuration indicating that the one or more normal L1 measurement reports should be sent.
[0175] Aspect 7: The method according to aspect 6, wherein the configuration indicates that the light L1 measurement report is allowed to be sent after a consecutive number of normal L1 measurement reports are sent.
[0176] Aspect 8: The method according to any one of aspects 6 to 7, wherein the configuration indicates that a normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports.
[0177] Aspect 9: The method according to any one of aspects 1 to 8, wherein the light L1 measurement report includes at least one of a reference signal measurement value or a reference signal index indication.
[0178] Aspect 10: The method according to any one of aspects 1 to 9, wherein the light L1 measurement report omits at least one of a reference signal measurement value or a reference signal index indication.
[0179] Aspect 11: According to the method described in any one of Aspects 1 to 10, the method also includes receiving a configuration indicating that a subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of the following: beam failure detection, the measurement of one or more reference signals does not meet the measurement threshold, or the payload size associated with the subsequently sent measurement report meets the payload threshold.
[0180] Aspect 12: The method according to any one of aspects 1 to 11, further comprising indicating to a network entity that the light L1 measurement report is being sent.
[0181] Aspect 13: A method according to Aspect 12, wherein the lightweight L1 measurement report is indicated to the network entity using at least one of the following: discontinuous transmission, communication comprising one or more signals sent in a specific sequence, communication associated with a reduced number of resource blocks, communication associated with a reduced number of symbols, communication associated with a specific physical uplink control channel format, or an indication provided in a communication for a different purpose.
[0182] Aspect 14: A method of wireless communication performed by a network entity, the method comprising: receiving a normal L1 measurement report from a UE; and receiving a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement report conditions, wherein the light L1 measurement report is at least in part based on the normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omitting at least some information sent in the normal L1 measurement report, or including information different from the information sent in the normal L1 measurement report.
[0183] Aspect 15: A method according to Aspect 14, wherein the one or more light L1 measurement report conditions include that the measurement of the one or more reference signals differs from the measurement of one or more previously sent reference signals by less than a threshold amount, wherein the measurement of the one or more previously sent reference signals is associated with the normal L1 measurement report.
[0184] Aspect 16: A method according to Aspect 15, wherein the one or more reference signals include multiple reference signals, and wherein the one or more light L1 measurement reporting conditions include that the measurement of each reference signal in the multiple reference signals differs from the measurement of the corresponding reference signal in the one or more previously sent reference signals by less than the threshold amount.
[0185] Aspect 17: A method according to Aspect 15, wherein the one or more reference signals include multiple reference signals, and wherein the one or more light L1 measurement reporting conditions include that the measurement of a subset of reference signals in the multiple reference signals differs from the measurement of a corresponding subset of reference signals in the one or more previously sent reference signals by less than the threshold amount.
[0186] Aspect 18: According to the method described in any one of Aspects 14 to 17, the method also includes receiving another normal L1 measurement report associated with the measurement of the one or more additional reference signals from the UE at least in part based on the measurement of the one or more additional reference signals failing to satisfy the one or more light L1 measurement reporting conditions.
[0187] Aspect 19: The method according to any one of aspects 14 to 18, the method further comprising sending a configuration to the UE indicating that one or more normal L1 measurement reports should be sent.
[0188] Aspect 20: The method according to aspect 19, wherein the configuration indicates that the light L1 measurement report is allowed to be sent after a consecutive number of normal L1 measurement reports are sent.
[0189] Aspect 21: The method according to any one of aspects 19 to 20, wherein the configuration indicates that another normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports.
[0190] Aspect 22: The method according to any one of aspects 14 to 21, wherein the light L1 measurement report includes at least one of a reference signal measurement value or a reference signal index indication.
[0191] Aspect 23: The method according to any one of aspects 14 to 22, wherein the light L1 measurement report omits at least one of a reference signal measurement value or a reference signal index indication.
[0192] Aspect 24: According to the method described in any one of Aspects 14 to 23, the method also includes sending a configuration to the UE indicating that the subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of the following: beam failure detection, the measurement of one or more reference signals does not meet the measurement threshold, or the payload size associated with the subsequently sent measurement report meets the payload threshold.
[0193] Aspect 25: The method according to any one of aspects 14 to 24, the method further comprising receiving an indication from the UE that the light L1 measurement report is being sent.
[0194] Aspect 26: A method according to Aspect 25, wherein the indication that the light L1 measurement report is being sent is associated with at least one of: discontinuous transmission, communication comprising one or more signals sent in a specific sequence, communication associated with a reduced number of resource blocks, communication associated with a reduced number of symbols, communication associated with a specific physical uplink control channel format, or an indication provided in a communication for a different purpose.
[0195] Aspect 27: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 13.
[0196] Aspect 28: A device for wireless communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 13.
[0197] Aspect 29: An apparatus for wireless communication, the apparatus comprising: at least one means for performing the method according to one or more of aspects 1 to 13.
[0198] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 13.
[0199] Aspect 31: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 13.
[0200] Aspect 32: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 14 to 26.
[0201] Aspect 33: A device for wireless communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 14 to 26.
[0202] Aspect 34: An apparatus for wireless communication, the apparatus comprising: at least one means for performing the method according to one or more of aspects 14 to 26.
[0203] Aspect 35: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 14 to 26.
[0204] Aspect 36: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 14 to 26.
[0205] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.
[0206] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.
[0207] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.
[0208] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (which includes a single member). 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, and any combination with multiple identical elements (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).
[0209] Any element, action or instruction used herein should not be interpreted as critical or necessary unless clearly stated. In addition, as used herein, the article "one" is intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If you only want to refer to one project, the phrase "only one" or similar terms will be used. In addition, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "having" A elements can also have B). In addition, the phrase "based on" is intended to mean "at least partially based on", unless otherwise clearly stated. In addition, as used herein, the term "or" is intended to be open when used in a series, and can be used interchangeably with "and / or", unless otherwise clearly stated (for example, if used in combination with "any" or "only one").
Claims
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: Memory; and one or more processors coupled to the memory and configured to: performing measurements on one or more reference signals associated with a layer 1 (L1) measurement report; as well as sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of: omitting at least some of the information sent in said previously sent normal L1 measurement report, or Contains information different from the previously sent normal L1 measurement report.
2. The apparatus of claim 1 , wherein the one or more light L1 measurement report conditions comprise that the measurement of the one or more reference signals differs from a measurement of one or more previously received reference signals by less than a threshold amount, wherein the measurement of the one or more previously received reference signals is associated with the previously sent normal L1 measurement report.
3. The apparatus of claim 2, wherein the one or more reference signals include a plurality of reference signals, and wherein the one or more light L1 measurement reporting conditions include a measurement of each of the plurality of reference signals differing from a measurement of a corresponding reference signal of the one or more previously received reference signals by less than the threshold amount.
4. The apparatus of claim 2 , wherein the one or more reference signals include a plurality of reference signals, and wherein the one or more light L1 measurement reporting conditions include measurements of a subset of reference signals in the plurality of reference signals differing from measurements of a corresponding subset of reference signals in the one or more previously received reference signals by less than the threshold amount.
5. The apparatus of claim 1 , wherein the one or more processors are further configured to: performing measurements on one or more additional reference signals; and Another normal L1 measurement report associated with the measurement of the one or more additional reference signals is sent based at least in part on the measurement of the one or more additional reference signals failing to satisfy the one or more light L1 measurement report conditions.
6. The apparatus of claim 1, wherein the one or more processors are further configured to receive a configuration indicating that one or more normal L1 measurement reports should be sent. 7 . The apparatus according to claim 6 , wherein the configuration indicates that sending the light L1 measurement report is allowed after sending a consecutive number of normal L1 measurement reports.
8. The apparatus of claim 6, wherein the configuration indicates that a normal L1 measurement report should be sent after sending a consecutive number of light L1 measurement reports. 9 . The apparatus of claim 1 , wherein the light L1 measurement report comprises at least one of a reference signal measurement value or a reference signal index indication.
10. The apparatus of claim 1, wherein the light L1 measurement report omits at least one of a reference signal measurement value or a reference signal index indication.
11. The apparatus of claim 1 , wherein the one or more processors are further configured to receive a configuration indicating that a subsequently sent measurement report should be another normal L1 measurement report based at least in part on at least one of: Beam fault detection, The measurement of one or more reference signals does not satisfy a measurement threshold, or A payload size associated with the subsequently sent measurement report satisfies a payload threshold.
12. The apparatus of claim 1, wherein the one or more processors are further configured to indicate to a network entity that the lightweight L1 measurement report is being sent.
13. The apparatus of claim 12, wherein the lightweight L1 measurement report is indicated to the network entity using at least one of: Discontinuous sending, A communication consisting of one or more signals sent in a specific sequence, communications associated with a reduced number of resource blocks, communications associated with a reduced number of symbols, Communications associated with a specific physical uplink control channel format, or Instructions provided in communications for different purposes.
14. An apparatus for wireless communication at a network entity, the apparatus comprising: Memory; and one or more processors coupled to the memory and configured to: receiving normal layer 1 (L1) measurement reports from a user equipment (UE); as well as receiving a light L1 measurement report from the UE based at least in part on measurements of one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on the normal L1 measurement report, and wherein the light L1 measurement report performs at least one of the following: omitting at least some of the information sent in said normal L1 measurement report, or Contains information different from that sent in the normal L1 measurement report.
15. The apparatus of claim 14, wherein the one or more light L1 measurement report conditions comprise that the measurement of the one or more reference signals differs from a measurement of one or more previously transmitted reference signals by less than a threshold amount, wherein the measurement of the one or more previously transmitted reference signals is associated with the normal L1 measurement report.
16. The apparatus of claim 15, wherein the one or more reference signals include a plurality of reference signals, and wherein the one or more light L1 measurement reporting conditions include a measurement of each of the plurality of reference signals differing from a measurement of a corresponding reference signal of the one or more previously transmitted reference signals by less than the threshold amount.
17. The apparatus of claim 15, wherein the one or more reference signals include a plurality of reference signals, and wherein the one or more light L1 measurement reporting conditions include measurements of a subset of reference signals in the plurality of reference signals differing from measurements of a corresponding subset of reference signals in the one or more previously transmitted reference signals by less than the threshold amount.
18. The apparatus of claim 14, wherein the one or more processors are further configured to receive, from the UE, another normal L1 measurement report associated with the measurement of the one or more additional reference signals based at least in part on the measurement of the one or more additional reference signals failing to satisfy the one or more light L1 measurement reporting conditions.
19. A method of wireless communication performed by a user equipment (UE), the method comprising: performing measurements on one or more reference signals associated with a layer 1 (L1) measurement report; as well as sending a light L1 measurement report associated with the measurement of the one or more reference signals based at least in part on the measurement of the one or more reference signals satisfying one or more light L1 measurement reporting conditions, wherein the light L1 measurement report is based at least in part on a previously sent normal L1 measurement report, and wherein the light L1 measurement report at least one of: omitting at least some of the information sent in said previously sent normal L1 measurement report, or Contains information different from the previously sent normal L1 measurement report.
20. The method of claim 19, wherein the one or more light L1 measurement report conditions include the measurement of the one or more reference signals differing from a measurement of one or more previously received reference signals by less than a threshold amount, wherein the measurement of the one or more previously received reference signals is associated with the previously sent normal L1 measurement report.
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Communication methods, communication devices, communication system, storage medium, and program product
WO2026156646A1
