Multipart layer 1 report
By dividing CSI reports into multiple parts and using different time resources and periodic transmission, the coverage problems and unreliability caused by CSI reports are solved, and the beam management and coverage capabilities of wireless communication systems are improved.
Patent Information
- Application Number
- CN202180029211.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-04-16
- Filing Date
- 2021-04-19
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2041-04-19
AI Technical Summary
When existing wireless communication systems transmit CSI reports, especially L1-RSRP and L1-SINR measurements, the increase in reported size results in coverage issues and reduced throughput, and the CSI feedback is unreliable, affecting single beam reliability and frequency range Play overlay.
By dividing the CSI report into multiple parts, transmitting measurement information for different beam sets, using different time resources and periodicity, reducing payload size, improving reliability and saving communication resources.
Improves the reliability of CSI reports and the reliability of beam management, reduces the number of retransmissions, and improves coverage area and communication efficiency.
Smart Images

Figure CN115428562B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 015,236, filed on April 24, 2020, entitled “MULTI-PART LAYER 1 REPORTING,” U.S. Provisional Patent Application No. 63 / 015,318, filed on April 24, 2020, entitled “METHOD OF SETTINGALTERNATIVE FORMAT FOR CSI REPORT OF L1-RSRP OR L1-SINR,” and U.S. Non-Provisional Patent Application No. 17 / 233,014, filed on April 16, 2021, entitled “MULTI-PART LAYER 1 REPORTING,” which are hereby expressly incorporated herein by reference. Technical Field
[0003] Aspects of the disclosure relate generally to wireless communications, and to techniques and apparatus for multi-part layer 1 reporting. Background Art
[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as voice, 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 released by the Third Generation Partnership Project (3GPP).
[0005] A wireless network may include multiple base stations (BSs) that may support communications for multiple user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a BS to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.
[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at the city, country, region, and even global level. NR (also known as 5G) is an enhancement set to the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, so as to better support mobile broadband Internet access. As the demand for mobile broadband access continues to grow, further improvements in LTE, NR and other radio access technologies are useful. Summary of the invention
[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: sending a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and sending a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources.
[0008] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: send a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and send a second part of the layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources.
[0009] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: send a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first beam set; and send a second portion of the layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first portion and the second portion are sent using different time resources.
[0010] In some aspects, a device for wireless communication may include: a component for sending a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and a component for sending a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources.
[0011] In some aspects, a wireless communication method performed by a base station may include: receiving a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and receiving a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first part and the second part are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE.
[0012] In some aspects, a base station for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first beam set; and receive a second portion of the layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first portion and the second portion are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE.
[0013] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a base station, the one or more instructions may cause the one or more processors to: receive a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first beam set; and receive a second portion of the layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first portion and the second portion are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE.
[0014] In some aspects, a device for wireless communication may include: a component for receiving a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and a component for receiving a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first part and the second part are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE.
[0015] In aspects of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a device within a UE. The device may receive at least one of a semi-static and / or dynamic CSI report configuration from a BS to select a format or a subset of formats from a set of formats. The UE may select a format or a subset of formats from a set of formats for reporting at least one of an L1-RSRP measurement and / or an L1-SINR measurement in a CSI report. The UE may also determine a format from a subset of formats based on at least one of an L1-RSRP measurement and / or an L1-SINR measurement. The UE may receive at least one of a synchronization signal block (SSB) and / or a CSI reference signal (RS) (CSI-RS), and generate a CSI report based on at least one of the received SSB and / or CSI-RS according to the selected format.
[0016] Aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as generally described with reference to the drawings and as illustrated in the description and drawings.
[0017] The foregoing has been a fairly extensive overview of the features and technical advantages of examples according to the present disclosure so that the following detailed description 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 to achieve the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and methods of operation, and related advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each figure is provided for the purpose of illustration and description, and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to be able to understand the above features of the present disclosure in detail, a more specific description briefly summarized above can be obtained by reference 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 should not be considered as limiting the scope thereof, as the description may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0020] Figure 2 is a diagram illustrating a base station communicating with a UE in a wireless network according to the present disclosure.
[0021] Figure 3 is a diagram illustrating an example beamforming architecture supporting unicast coverage in a millimeter wave (mmW) channel according to the present disclosure.
[0022] Figure 4 is a diagram illustrating an example of a multi-part layer 1 report according to the present disclosure.
[0023] Figure 5 is a diagram illustrating an example process performed, for example, by a user device according to the present disclosure.
[0024] Figure 6 is a diagram illustrating an example process performed, for example, by a base station according to the present disclosure.
[0025] Figure 7 is a call flow diagram illustrating a method of generating and reporting a CSI report according to the present disclosure, the method including setting an alternative format for reporting L1-RSRP measurements or L1-SINR measurements.
[0026] Figure 8 is a flow chart of a method of wireless communication according to the present disclosure. DETAILED DESCRIPTION
[0027] 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 construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, 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 present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present 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 a device or method that is practiced using other structures, functions, or structures and functions other than or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.
[0028] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and methods will be described in the following detailed description by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements") and illustrated in the accompanying drawings. These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0029] It should be noted that while various aspects may be described using terminology typically associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or post-5G (e.g., 6G) RATs.
[0030] Figure 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. The wireless network 100 may include a plurality of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE), and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.
[0031] A BS 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 UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.
[0032] In some aspects, a cell may not necessarily be stationary, and the geographic area of a cell may move depending on the location of a mobile BS. In some aspects, BSs may be interconnected with each other and / or connected to one or more other BSs or network nodes (not shown) through various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.
[0033] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the illustrated example, a relay BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.
[0034] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).
[0035] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.
[0036] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can 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 or equipment, a biosensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.
[0037] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide connectivity or provide connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included in a housing that houses components (such as processor components, memory components) of UE 120. In some aspects, a processor component and a 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, electrically coupled, and / or electrically coupled.
[0038] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can 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 can be deployed.
[0039] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 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) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol or vehicle-to-infrastructure (V2I) protocol), and / or mesh network. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations performed by base station 110 as described elsewhere herein.
[0040] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1), which can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2), which can span from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although portions of FR1 are above 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified by the International Telecommunication Union (ITU) as a "millimeter wave" band. Therefore, unless otherwise expressly stated, it should be understood that the term "below 6 GHz" and the like (if used herein) can broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., above 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., below 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0041] As indicated above, the Figure 1 As an example. Other examples can be related to Figure 1 Different than described.
[0042] Figure 2 is a diagram illustrating an example 200 of a base station 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.
[0043] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and the like) 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 also 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)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively.
[0044] At the UE 120, antennas 252a to 252r may receive downlink signals from the base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 260, and 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 indication (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other examples. In some aspects, one or more components of UE 120 may be included in a housing.
[0045] 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 base station 110 via the communication unit 294.
[0046] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, among other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components (such as Figure 2 One or more antenna elements of one or more components).
[0047] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform any of the methods described herein (e.g., as described with reference to Figure 3-Figure 6 aspects described).
[0048] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, 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 the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform any of the methods described herein (e.g., as described with reference to Figure 3-Figure 6 aspects described).
[0049] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the can perform or direct e.g. Figure 5 The process of 500 Figure 6 The process of 600 Figure 8 800 and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, 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, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly or after compilation, conversion, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example, Figure 5 The process of 500 Figure 6 The process of 600 Figure 8 The operations of process 800 and / or other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other examples.
[0050] In some aspects, UE 120 may include means for sending a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first beam set; means for sending a second portion of a layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first portion and the second portion are sent using different time resources; means for receiving signaling indicating that the layer 1 measurement report will be sent as the first portion and the second portion, wherein sending the first portion and sending the second portion are based at least in part on the signaling; means for determining that the layer 1 measurement report will be sent as the first portion and the second portion, wherein sending the first portion and sending the second portion are based at least in part on the determination; means for sending information indicating that the layer 1 measurement report will be sent as the first portion and the second portion; means for sending a third portion of the layer 1 measurement report, wherein the third portion includes measurement information for a third beam set different from the first beam set and the second beam set; and so on. In some aspects, such means may include combining Figure 2One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.
[0051] In some aspects, the base station 110 may include components for receiving a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first beam set; components for receiving a second portion of a layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first portion and the second portion are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE; components for sending signaling indicating that the layer 1 measurement report will be sent as the first portion and the second portion, wherein receiving the first portion and receiving the second portion are based at least in part on the signaling; components for receiving information indicating that the layer 1 measurement report will be sent as the first portion and the second portion; components for receiving a third portion of a layer 1 measurement report, wherein the third portion includes measurement information for a third beam set different from the first beam set and the second beam set; and so on. In some aspects, such components may include combining Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.
[0052] Although Figure 2 The blocks in the 200 and 210 are illustrated as distinct components, but 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.
[0053] As indicated above, the Figure 2 As an example. Other examples can be related to Figure 2 Different than described.
[0054] Figure 3is a diagram illustrating an example beamforming architecture 300 supporting unicast coverage in a millimeter wave (mmW) channel according to the present disclosure. In some aspects, the architecture 300 can implement aspects of the wireless network 100. In some aspects, the architecture 300 can be implemented in a transmitting device (e.g., a first wireless communication device, UE, or base station) and / or a receiving device (e.g., a second wireless communication device, UE, or base station), as described herein.
[0055] In summary, Figure 3 300 is a diagram illustrating example hardware components of a wireless communication device according to certain aspects of the present disclosure. The illustrated components may include components that may be used for antenna element selection and / or beamforming for wireless signal transmission. There are many architectures for antenna element selection and implementing phase shifting, only one example of which is described here. Architecture 300 includes a modem (modulator / demodulator) 302, a digital-to-analog converter (DAC) 304, a first mixer 306, a second mixer 308, and a splitter 310. Architecture 300 also includes a plurality of first amplifiers 312, a plurality of phase shifters 314, a plurality of second amplifiers 316, and an antenna array 318 including a plurality of antenna elements 320.
[0056] Transmit lines or other waveguides, wires, traces, etc. are shown connecting various components to illustrate how signals to be transmitted can travel between components. Reference numerals 322, 324, 326, and 328 indicate areas in the architecture 300 where different types of signals travel or are processed. Specifically, reference numeral 322 indicates an area where digital baseband signals travel or are processed, reference numeral 324 indicates an area where analog baseband signals travel or are processed, reference numeral 326 indicates an area where analog intermediate frequency (IF) signals travel or are processed, and reference numeral 328 indicates an area where analog radio frequency (RF) signals travel or are processed. The architecture also includes a local oscillator A 330, a local oscillator B 332, and a communication manager 334.
[0057] Each of the antenna elements 320 may include one or more sub-elements for radiating or receiving RF signals. For example, a single antenna element 320 may include a first sub-element that is cross-polarized with a second sub-element that can be used to independently transmit a cross-polarized signal. The antenna elements 320 may include patch antennas, dipole antennas, or other types of antennas arranged in a linear, two-dimensional, or other pattern. The spacing between the antenna elements 320 may allow signals having a desired wavelength that are individually transmitted by the antenna elements 320 to interact or interfere (e.g., to form a desired beam). For example, given an expected range of wavelengths or frequencies, the spacing may provide a spacing between adjacent antenna elements 320 of a quarter wavelength, a half wavelength, or other fractional wavelength to allow signals transmitted by individual antenna elements 320 to interact or interfere within the expected range.
[0058] The modem 302 processes and generates digital baseband signals, and may also control the operation of the DAC 304, the first and second mixers 306, 308, the splitter 310, the first amplifier 312, the phase shifter 314, and / or the second amplifier 316 to transmit signals via one or more or all antenna elements 320. The modem 302 may process signals and control operations according to a communication standard such as the wireless standard discussed herein. The DAC 304 may convert the digital baseband signal received from the modem 302 (and to be transmitted) into an analog baseband signal. The first mixer 306 uses a local oscillator A 330 to up-convert the analog baseband signal into an analog IF signal within the IF. For example, the first mixer 306 may mix the signal with an oscillating signal generated by the local oscillator A 330 to "move" the baseband analog signal to the IF. In some cases, some processing or filtering (not shown) may occur at the IF. The second mixer 308 uses a local oscillator B 332 to up-convert the analog IF signal into an analog RF signal. Similar to the first mixer, the second mixer 308 can mix the signal with an oscillating signal generated by local oscillator B 332 to "move" the IF analog signal to the RF or frequency at which the signal will be transmitted or received. The modem 302 and / or the communication manager 334 can adjust the frequency of local oscillator A 330 and / or local oscillator B 332 in order to generate and use the desired IF and / or RF frequencies to facilitate processing and transmission of signals within the desired bandwidth.
[0059] In the illustrated architecture 300, the signal up-converted by the second mixer 308 is separated or copied into multiple signals by the splitter 310. The splitter 310 in the architecture 300 separates the RF signal into multiple identical or nearly identical RF signals. In other examples, any type of signal can be separated, including baseband digital, baseband analog or IF analog signals. Each of these signals can correspond to an antenna element 320, and the signal travels through amplifiers 312, 316, phase shifters 314 and / or other elements corresponding to the corresponding antenna element 320 and is processed by them to be provided to and transmitted by the corresponding antenna element 320 of the antenna array 318. In one example, the splitter 310 can be an active splitter connected to a power supply and provides some gain so that the power level of the RF signal leaving the splitter 310 is equal to or greater than the power level of the signal entering the splitter 310. In another example, the splitter 310 is a passive splitter that is not connected to a power source, and the power level of the RF signal exiting the splitter 310 may be lower than the power level of the RF signal entering the splitter 310 .
[0060] After being separated by the splitter 310, the resulting RF signal can enter an amplifier, such as a first amplifier 312, or a phase shifter 314 corresponding to the antenna element 320. The first and second amplifiers 312, 316 are shown with dashed lines because one or both of them may not be needed in some aspects. In some aspects, both the first amplifier 312 and the second amplifier 316 exist. In some aspects, neither the first amplifier 312 nor the second amplifier 316 exists. In some aspects, one of the two amplifiers 312, 316 exists, but the other does not exist. For example, if the splitter 310 is an active splitter, the first amplifier 312 may not be used. As a further example, if the phase shifter 314 is an active phase shifter that can provide gain, the second amplifier 316 may not be used.
[0061] The amplifiers 312, 316 can provide a desired level of positive gain or negative gain. Positive gain (positive dB) can be used to increase the signal amplitude radiated by a particular antenna element 320. Negative gain (negative dB) can be used to reduce the signal amplitude of a particular antenna element and / or suppress its radiation. Each amplifier 312, 316 can be independently controlled (e.g., by the modem 302 or the communication manager 334) to provide independent control of the gain of each antenna element 320. For example, the modem 302 and / or the communication manager 334 can have at least one control line connected to each of the splitter 310, the first amplifier 312, the phase shifter 314, and / or the second amplifier 316, which can be used to configure the gain to provide a desired amount of gain for each component and therefore for each antenna element 320.
[0062] The phase shifter 314 can provide a configurable phase shift or phase offset to the corresponding RF signal to be transmitted. The phase shifter 314 can be a passive phase shifter that is not directly connected to the power supply. The passive phase shifter may introduce some insertion loss. The second amplifier 316 can enhance the signal to compensate for the insertion loss. The phase shifter 314 can be an active phase shifter connected to the power supply so that the active phase shifter provides some gain or prevents insertion loss. The setting of each phase shifter 314 is independent, which means that each phase shifter can be set to provide a desired phase shift amount or the same phase shift amount or some other configuration. The modem 302 and / or the communication manager 334 can have at least one control line connected to each phase shifter 314 and can be used to configure the phase shifter 314 to provide a desired phase shift amount or phase offset between the antenna elements 320.
[0063] In the illustrated architecture 300, the RF signal received by the antenna element 320 is provided to one or more first amplifiers 356 to enhance the signal strength. The first amplifier 356 can be connected to the same antenna array 318 (e.g., for time division duplex (TDD) operation). The first amplifier 356 can be connected to different antenna arrays 318. The enhanced RF signal is input to one or more phase shifters 354 to provide a configurable phase shift or phase offset for the corresponding received RF signal. The phase shifter 354 can be an active phase shifter or a passive phase shifter. The settings of the phase shifter 354 are independent, which means that each phase shifter can be set to provide a desired phase shift amount or the same phase shift amount or some other configuration. The modem 302 and / or the communication manager 334 can have at least one control line 320 connected to each phase shifter 354 and can be used to configure the phase shifter 354 to provide a desired phase shift amount or phase offset between the antenna elements.
[0064] The output of phase shifter 354 can be input to one or more second amplifiers 352 for signal amplification of the received RF signal of phase shift. Second amplifier 352 can be configured separately to provide the gain amount of configuration. Second amplifier 352 can be configured separately to provide the gain amount to ensure that the signal input to combiner 350 has the same amplitude. Amplifier 352 and / or 356 are shown with dotted lines because they may not be necessary in some aspects. In some aspects, both amplifier 352 and amplifier 356 exist. In another aspect, both amplifier 352 and amplifier 356 do not exist. In other aspects, there is one of amplifiers 352, 356 but not the other.
[0065] In the illustrated architecture 300, the signals output by the phase shifter 354 are combined (via the amplifier 352 (when present)) in the combiner 350. The combiner 350 in the architecture 300 combines the RF signals into a signal. The combiner 350 can be a passive combiner (e.g., not connected to a power source), which may result in some insertion loss. The combiner 350 can be an active combiner (e.g., connected to a power source), which can produce some signal gain. When the combiner 350 is an active combiner, it can provide a different (e.g., configurable) amount of gain for each input signal so that the input signals have the same amplitude when they are combined. When the combiner 350 is an active combiner, the combiner 350 may not need a second amplifier 352 because the active combiner can provide signal amplification.
[0066] The output of combiner 350 is input to mixers 348 and 346. Mixers 348 and 346 typically down-convert the received RF signal using inputs from local oscillators 372 and 370, respectively, to produce intermediate or baseband signals that carry coding and modulation information. The outputs of mixers 348 and 346 are input to analog-to-digital converter (ADC) 344 for conversion to analog signals. The analog signals output from ADC 344 are input to modem 302 for baseband processing, such as decoding, deinterleaving, etc.
[0067] Architecture 300 is given as an example only to illustrate an architecture for sending and / or receiving signals. In some cases, architecture 300 and / or each part of architecture 300 can be repeated multiple times within the architecture to accommodate or provide any number of RF chains, antenna elements and / or antenna panels. In addition, many alternative architectures are possible and can be considered. For example, although only a single antenna array 318 is shown, two, three or more antenna arrays may be included, each with one or more of their own corresponding amplifiers, phase shifters, splitters, mixers, DACs, ADCs and / or modems. For example, a single UE may include two, four or more antenna arrays for sending or receiving signals at different physical locations on the UE or in different directions.
[0068] In addition, mixers, splitters, amplifiers, phase shifters, and other components may be located in different signal type areas (e.g., represented by different reference numerals 322, 324, 326, 328) in different implementation architectures. For example, in different examples, the separation of the signal to be transmitted into multiple signals may occur at analog RF, analog IF, analog baseband, or digital baseband frequencies. Similarly, amplification and / or phase shifting may also occur at different frequencies. For example, in some aspects, one or more of the splitter 310, amplifiers 312, 316, or phase shifter 314 may be located between the DAC 304 and the first mixer 306 or between the first mixer 306 and the second mixer 308. In one example, the functions of one or more components may be combined in one component. For example, the phase shifter 314 may perform amplification to include or replace the first and / or second amplifiers 312, 316. As another example, the phase shift may be implemented by the second mixer 308, thereby eliminating the need for a separate phase shifter 314. This technique is sometimes referred to as local oscillator (LO) phase shifting. In some aspects of this configuration, there may be multiple IF to RF mixers within the second mixer 308 (e.g., for each antenna element chain), and local oscillator B 332 may provide a different local oscillator signal (with a different phase offset) to each IF to RF mixer.
[0069] The modem 302 and / or the communication manager 334 can control one or more of the other components 304 to 372 to select one or more antenna elements 320 and / or to form a beam for the transmission of one or more signals. For example, the antenna elements 320 can be individually selected or deselected for the transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers (such as the first amplifier 312 and / or the second amplifier 316). Beamforming includes generating a beam using multiple signals on different antenna elements, wherein one or more or all of the multiple signals are offset in phase relative to each other. The formed beam can carry a physical or higher layer reference signal or information. When each of the multiple signals is radiated from the corresponding antenna element 320, the radiated signals interact, interfere (constructively and destructively interfere), and amplify each other to form the final beam. The shape (such as the amplitude, width and / or the presence of side lobes) and direction (such as the angle of the beam relative to the surface of the antenna array 318) can be dynamically controlled by modifying the phase shift or phase offset imparted by the phase shifter 314 and the amplitude of the multiple signals imparted by the amplifiers 312, 316 relative to each other. The communications manager 334 may be partially or fully located within one or more other components of the architecture 300. For example, in some aspects, the communications manager 334 may be located within the modem 302.
[0070] The communication manager 334, the controller / processor 280, the receive processor 258, etc. can manage the measurement of the beam by the architecture 300. For example, the measurement can include the determination of channel state information (CSI) based at least in part on the CSI report setting. The CSI can be based at least in part on layer 1 measurements, such as layer 1 RSRP, layer 1 signal to interference plus noise (SINR) value, CQI, precoding matrix indicator (PMI), CSI reference signal (CSI-RS) resource indicator (CRI), strongest layer indication (SLI), rank indication (RI), etc. L1-RSRP and / or L1-SINR can be used for beam selection based at least in part on interference. In some aspects, the communication manager 334, the controller / processor 280, the transmit processor 264, etc. can manage the transmission of CSI reports by the architecture 300. Some techniques and apparatus described herein provide that CSI reports are transmitted in two or more parts, as described in more detail elsewhere herein.
[0071] As indicated above, the Figure 3 As an example. Other examples can be related to Figure 3 Different than described.
[0072] CSI measurement and reporting may be based at least in part on a CSI reporting configuration. The CSI reporting configuration may be semi-statically configured (e.g., using radio resource control (RRC) signaling, etc.). The CSI reporting configuration may identify the periodicity for CSI reporting, the reference signal for CSI reporting, the resources associated with the CSI reporting, etc. CSI reporting may be performed periodically, semi-persistently, or aperiodically. Aperiodic CSI reporting may be triggered, while periodic and semi-persistent CSI reporting may be configured to be performed at intervals. Semi-persistent CSI reporting may be activated, such as by downlink control information (DCI).
[0073] With the implementation of NR, the size of CSI feedback has grown relative to earlier radio access technologies. For example, CSI feedback may carry L1-RSRP and L1-SINR information, which may include information about multiple beams, and thus may be large in size (e.g., on the order of 20 bits in some aspects). When combined with periodic CSI reporting, larger CSI feedback in NR may lead to coverage issues and poor throughput. For example, channel conditions at the UE may update faster than the periodic CSI reporting configuration (e.g., in some cases, on a slot-to-slot basis), and thus CSI feedback for CSI reports may be unreliable, thereby reducing the efficiency of the network and the use of computational resources associated with retransmitting CSI feedback. This may be exacerbated for larger CSI reports, such as those that include L1-RSRP / L1-SINR information, and for periodic CSI reporting that uses a longer period.
[0074] Some techniques and apparatus described herein provide for a layer 1 measurement report to be provided in two or more parts, such as a CSI report that carries measurement information for multiple beams. For example, a first part of the layer 1 measurement report may carry measurement information for a first set of beams, and a second part of the layer 1 measurement report may carry measurement information for a second set of beams that is different from the first set of beams. The first part and the second part may be sent at different times, on different resources, etc. In some aspects, the first part may carry information about a best set of beams, and the second part may carry information about one or more beams other than the best set of beams.
[0075] In addition, some techniques and apparatus described herein provide for the first part and the second part to be sent with different periodicities relative to each other and / or a single-part CSI report. For example, the first part (carrying information about the best beam set) can be sent more frequently than the second part (carrying information about one or more beams other than the best beam set). Therefore, by reducing the payload size of a given CSI report, the reliability of the CSI report can be improved relative to a single-part CSI report (particularly with respect to the first part being sent more frequently than the single-part CSI report). Improving the reliability of the CSI report saves communication resources by reducing the number of CSI reports that must be retransmitted.
[0076] Figure 4 is a diagram illustrating an example 400 of multi-part transmission of a layer 1 CSI report according to the present disclosure. As shown, example 400 includes a UE 120 and a BS 110.
[0077] As shown in reference numeral 410, in some aspects, UE 120 may receive a signal indicating that a multi-part transmission of a layer 1 CSI report is to be performed. The layer 1 CSI report may be performed using a layer 1 measurement report (such as a CSI report carrying L1-RSRP information, L1-SINR information, or other forms of layer 1 measurement information). In some aspects, the signal may be provided via a DCI, a medium access control (MAC) control element (CE), or the like. In this case, the signaling may be referred to as dynamic signaling. In some aspects, the signal may indicate activation of a configuration associated with the multi-part transmission of a layer 1 CSI report. For example, the signal may indicate a selected configuration from a plurality of configurations or may carry information identifying the configuration.
[0078] In some aspects, the signal may include semi-static signaling. For example, the BS 110 may provide a signal associated with or as part of a CSI reporting configuration using RRC signaling, etc. (e.g., for periodic CSI reporting and / or semi-persistent CSI reporting). In some aspects, the signal may indicate a timer associated with the transmission of a layer 1 measurement report as a first part and a second part. For example, the signal may indicate an expiration time or a timer length associated with a multi-part transmission of a layer 1 measurement report. As another example, a timer may be pre-configured for the UE 120 (e.g., as part of a wireless communication specification, as part of a CSI reporting configuration, etc.). In some aspects, the CSI reporting configuration may indicate one or more parameters for CSI reporting, such as a periodicity for CSI reporting, a trigger for CSI reporting, a broadband or subband configuration, one or more reference signals associated with CSI reporting, resources associated with CSI reporting, etc.
[0079] As indicated by reference numeral 420, UE 120 may determine to perform multi-part transmission of a layer 1 CSI report. If UE 120 receives the signal indicated by reference numeral 410, UE 120 may determine to perform multi-part transmission of a layer 1 CSI report based on the signal indicated by reference numeral 410. In some aspects, UE 120 may determine to perform multi-part transmission of a layer 1 CSI report without receiving the signal indicated by reference numeral 410. For example, UE 120 may perform the determination based at least in part on measurements performed by UE 120 (e.g., regarding channel conditions at UE 120, etc.). In this case, UE 120 may provide a signal (e.g., via uplink control information (UCI), a reference signal, a first part of CSI feedback, etc.) indicating that UE 120 is to perform multi-part transmission of a layer 1 CSI report. Figure 4 not shown).
[0080] As indicated by reference numeral 430, UE 120 may determine CSI feedback for multiple beams (including a first beam set and a second beam set) based at least in part on one or more reference signals received from BS 110. For example, UE 120 may determine measurement information (e.g., L1-SINR, L1-RSRP, etc.) for multiple beams. In some aspects, UE 120 may assign beams to the first beam set or the second beam set based at least in part on the CSI feedback. For example, UE 120 may assign the best N beams (where N is greater than or equal to 1) to the first beam set, and may assign one or more remaining beams of the multiple beams to the second beam set. As used herein, the best beam in a set of beams refers to the beam associated with the highest measurement value (such as the highest SINR value, the highest RSRP value, etc.) relative to the set of beams.
[0081] As shown in reference numeral 440, UE 120 may send a first part of a CSI report. As shown in reference numeral 450, UE 120 may send a second part of a CSI report using a different time and / or frequency (T / F) resource than the first part of the CSI report. As shown, the first part may include measurement information for a first beam set, and the second part may include measurement information for a second beam set. As shown in reference numeral 460, BS 110 may receive the first part and the second part. In some aspects, UE 120 may send more than two parts. For example, UE 120 may divide the measurement information into three or more parts, which further reduces the size of each payload relative to the two-part method. The two-part method may involve less overhead than the three-part or more-part method. Therefore, the CSI report is divided into two or more parts, which reduces the payload size of any given part, thereby improving the reliability of CSI transmission.
[0082] In some aspects, the UE 120 may send the first part and the second part with different periodicities. For example, the UE 120 may send the first part more frequently than the second part, which saves communication resources that would otherwise be used to provide the second part (which may carry information of one or more suboptimal beams) with the same frequency as the first part. In some aspects, the UE 120 may send the first part and / or the second part with a different periodicity than a single-part CSI report. For example, the UE 120 may send a multi-part CSI report less frequently than a single-part CSI report, thereby saving communication resources that would otherwise be used to send the multi-part CSI more frequently.
[0083] In some aspects, the first part and the second part may include respective independent CSI reports. In some aspects, the first part and the second part may include respective partial CSI reports. In some aspects, the measurement information in the second part may be defined relative to the measurement information in the first part. For example, the measurement information in the second part may be indicated by an offset relative to the measurement information in the first part, which reduces the size of the second part. In some aspects, the second part may include measurement information that is not defined relative to the measurement information in the first part (e.g., independent measurement information), which reduces the reliance on the successful transmission of the first part.
[0084] As indicated above, the Figure 4 As an example. Other examples can be related to Figure 4 Different than described.
[0085] Figure 5 is a diagram illustrating an example process 500 performed, for example, by a UE in accordance with the present disclosure. Example process 500 is an example of a UE (eg, UE 120, etc.) performing operations associated with multi-part layer 1 reporting.
[0086] like Figure 5 As shown in , in some aspects, process 500 may include sending a first portion of a layer 1 measurement report, where the first portion includes measurement information for a first set of beams (block 510). For example, a UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may send a first portion of a layer 1 measurement report, as described above. In some aspects, the first portion includes measurement information for a first set of beams.
[0087] like Figure 5 As further shown in FIG. 5 , in some aspects, process 500 may include sending a second portion of a layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first portion and the second portion are sent using different time resources (block 520). For example, the UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may send a second portion of a layer 1 measurement report, as described above. In some aspects, the second portion includes measurement information for a second beam set. In some aspects, the second beam set is different from the first beam set. In some aspects, the first portion and the second portion are sent using different time resources.
[0088] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0089] In a first aspect, a first set of beams includes one or more best beams from among a plurality of measurement beams based at least in part on measurements associated with the plurality of measurement beams.
[0090] In a second aspect, alone or in combination with the first aspect, the first part is sent using a first periodicity and the second part is sent using a second periodicity different from the first periodicity.
[0091] In a third aspect, alone or in combination with one or more of the first and second aspects, the first portion is sent more frequently than the second portion based at least in part on the first periodicity and the second periodicity.
[0092] In a fourth aspect, alone or in combination with one or more of the first to third aspects, sending the first part and sending the second part are at least partially based on a first periodicity, wherein the first periodicity is different from a second periodicity associated with sending a single-part layer 1 measurement report.
[0093] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the first periodicity is shorter than the second periodicity.
[0094] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 500 includes receiving signaling indicating that a layer 1 measurement report is to be sent as a first part and a second part, wherein sending the first part and sending the second part are at least partially based on the signaling.
[0095] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the signaling includes downlink control information or medium access control signaling.
[0096] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the signaling indicates a configuration associated with semi-persistent or periodic reporting, and the configuration indicates that the layer 1 measurement report is to be sent as a first part and a second part.
[0097] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the signaling includes configuration information for channel state information reporting.
[0098] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the configuration information is associated with periodic or semi-persistent channel state information reporting.
[0099] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, signaling indicates a timer associated with sending of a layer 1 measurement report as the first part and the second part.
[0100] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 500 includes determining that a layer 1 measurement report is to be sent as a first part and a second part, wherein sending the first part and sending the second part are based at least in part on the determination.
[0101] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the determination is based at least in part on one or more measurements associated with a layer 1 measurement report.
[0102] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the process 500 includes sending information indicating that a layer 1 measurement report is to be sent as a first part and a second part.
[0103] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the transmitted information indicates a timer associated with the transmission of the layer 1 measurement report as the first part and the second part.
[0104] In a sixteenth aspect, either alone or in combination with one or more of the first to fifteenth aspects, process 500 includes sending a third part of a layer 1 measurement report, wherein the third part includes measurement information for a third beam set different from the first beam set and the second beam set.
[0105] In a seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, the layer 1 measurement report is based at least in part on at least one of: a layer 1 signal to interference plus noise measurement, or a layer 1 reference signal received power measurement.
[0106] although Figure 5 Example blocks of process 500 are shown, but in some aspects process 500 may include additional blocks, fewer blocks, different blocks, or different Figure 5 Additionally or alternatively, two or more of the blocks of process 500 may be performed in parallel.
[0107] Figure 6 is a diagram illustrating an example process 600 performed, for example, by a base station in accordance with the present disclosure. Example process 600 is an example of a base station (eg, base station 110, etc.) performing operations associated with multi-part layer 1 reporting.
[0108] like Figure 6As shown in , in some aspects, process 600 may include receiving a first portion of a layer 1 measurement report, wherein the first portion includes measurement information for a first set of beams (block 610). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive the first portion of a layer 1 measurement report, as described above. In some aspects, the first portion includes measurement information for the first set of beams.
[0109] like Figure 6 As further shown in FIG. 6 , in some aspects, process 600 may include receiving a second portion of a layer 1 measurement report, wherein the second portion includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first portion and the second portion are received using different time resources, and wherein the first beam set and the second beam set are associated with a single UE (block 620). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive a second portion of a layer 1 measurement report, as described above. In some aspects, the second portion includes measurement information for a second beam set. In some aspects, the second beam set is different from the first beam set. In some aspects, the first portion and the second portion are received using different time resources. In some aspects, the first beam set and the second beam set are associated with a single UE. For example, the first beam set and the second beam set may be generated by the UE and / or may be used for communication with the UE.
[0110] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0111] In a first aspect, a first set of beams includes one or more best beams from among a plurality of measurement beams based at least in part on measurements associated with the plurality of measurement beams.
[0112] In a second aspect, alone or in combination with the first aspect, the first portion is received at least in part based on a first periodicity, and the second portion is received at least in part based on a second periodicity different from the first periodicity.
[0113] In a third aspect, alone or in combination with one or more of the first and second aspects, the first portion is received more frequently than the second portion based at least in part on the first periodicity and the second periodicity.
[0114] In a fourth aspect, alone or in combination with one or more of the first to third aspects, receiving the first part and receiving the second part are based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with receiving a single-part layer 1 measurement report.
[0115] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the first and second parts are received at a frequency lower than a frequency of receiving single-part layer 1 measurement reports. For example, the first periodicity may be shorter than the second periodicity.
[0116] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 600 includes sending signaling indicating that a layer 1 measurement report is to be sent as a first part and a second part, wherein receiving the first part and receiving the second part are at least partially based on the signaling.
[0117] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the signaling includes downlink control information or medium access control signaling.
[0118] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the signaling indicates a configuration associated with semi-persistent or periodic reporting, and the configuration indicates that the layer 1 measurement report is to be sent as a first part and a second part.
[0119] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the signaling includes configuration information for channel state information reporting.
[0120] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the configuration information is associated with periodic or semi-persistent channel state information reporting.
[0121] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, signaling indicates a timer associated with sending of a layer 1 measurement report as the first part and the second part.
[0122] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the process 600 includes receiving information indicating that a layer 1 measurement report is to be sent as a first part and a second part.
[0123] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, information indicating that a layer 1 measurement report will be received as a first part and a second part indicates a timer associated with the transmission of the layer 1 measurement report as the first part and the second part.
[0124] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, process 600 comprises receiving a third portion of a layer 1 measurement report, wherein the third portion comprises measurement information for a third beam set different from the first beam set and the second beam set.
[0125] In a fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, the layer 1 measurement report is based at least in part on at least one of: a layer 1 signal to interference plus noise measurement, or a layer 1 reference signal received power measurement.
[0126] although Figure 6 Example blocks of process 600 are shown, but in some aspects process 600 may include additional blocks, fewer blocks, different blocks, or different Figure 6 Additionally or alternatively, two or more of the blocks of process 600 may be performed in parallel.
[0127] The reliability of CSI reports, especially when reporting L1-RSRP measurements and L1-SINR measurements, may be important for beam reliability. Increasing beam reliability can facilitate increasing unicast coverage areas in frequency range 2 (FR2). CSI reports in NR include one or more of CQI, PMI, CSI-RS resource indicator (CRI), strongest layer indication (SLI), RI, L1-RSRP, and L1-SINR. The L1-RSRP and L1-SINR components of the CSI report may be important for the beam management process. The L1-RSRP report or L1-SINR report may be large (e.g., approximately 20 bits), which may result in a reduced coverage area of the PUCCH carrying the report. There may be three different types of CSI reports: periodic, semi-persistent, and aperiodic. Periodic CSI reports may be carried on PUCCH in PUCCH formats 0 and 2 (commonly referred to as short PUCCH) or PUCCH formats 1, 3, and 4 (commonly referred to as long PUCCH). Semi-persistent CSI reports may be carried on long PUCCH or PUSCH. Resources / MCS for semi-persistent CSI reporting on PUSCH are semi-persistently allocated using DCI. Semi-persistent CSI reporting can support type IICSI with a minimum periodicity of 5 ms. Aperiodic CSI-RS does not support semi-persistent CSI reporting. However, this does not exclude that one CSI report is carried by multiple UL reporting instances. Periodic CSI reporting or semi-persistent CSI reporting can support the following channel periodicities: 5, 10, 20, 40, 80, 160 and 320 time slots. Aperiodic CSI reports can be carried on PUSCH, multiplexed with uplink data or not.
[0128] During the beam selection process, L1-SINR values can be measured for multiple beams taking into account interference, and L1-SINR reports can be generated using a format similar to the L1-RSRP report. For example, each configured L1-SINR report can report up to 4 beams. Among multiple beams, the beam with the highest L1-SINR value can be selected as the first reporting beam or the best beam, and the absolute L1-SINR value can be reported for the first reporting beam or the best beam. A differential SINR value can be reported for each remaining beam being reported (if any), where the differential SINR is calculated relative to the L1-SINR value of the first reporting beam. A CSI report reporting L1-RSRP measurements and / or L1-SINR measurements for 4 beams can have the following structure.
[0129]
[0130] Given the increased size and complexity of CSI reports, the coverage area of the channel carrying the CSI reports may be degraded relative to the transmission of simpler CSI reports. If the CSI report coverage area is poor, the reliability of beam management of unicast channels may be poor. Techniques and apparatus described herein (above and below) improve the reliability of beam management of unicast channels by improving the coverage area of CSI reports.
[0131] Figure 7 is a call flow diagram 700 illustrating a method of generating and reporting a CSI report according to the present disclosure, the method including setting an alternative format for reporting L1-RSRP measurements or L1-SINR measurements.
[0132] like Figure 7 , a UE 702 (e.g., UE 120) receives a semi-static and / or dynamic CSI reporting configuration 706 from a base station 704 (e.g., BS 110). The UE 702 receives a synchronization signal block (SSB) and / or a CSI reference signal (RS) (CSI-RS) 710 from the base station 704. The UE 702 may select a format or a subset of formats 712 from a set of formats for reporting L1-RSRP measurements and / or L1-SINR measurements. Based at least in part on receiving the SSB or CSI-RS from the base station 704, the UE 702 may measure L1-RSRP values and / or L1-SINR values 714 for multiple beams and generate a CSI report 718 reporting the L1-RSRP measurements and / or L1-SINR measurements according to the selected format. The UE 702 may send a CSI report 722 to the base station 704. The CSI report may be one of a periodic CSI report or a semi-persistent CSI report.
[0133] UE 702 may generate a CSI report including L1-RSRP measurements and / or L1-SINR measurements for a first reporting beam and at least one of differential L1-RSRP values or differential L1-SINR values for other beams. The CSI report generated by UE 702 may include an alternative (such as compact) format for reporting L1-RSRP (and / or L1-SINR) and / or combined reporting, wherein a smaller payload (compared to the default format) may be used for the CSI report. That is, a CSI report generated by UE 702 according to an alternative format for reporting L1-RSRP measurements and / or L1-SINR measurements may require fewer resources to send than a CSI report having a different format. In addition, compared to the default report, the compact CSI report for reporting L1-RSRP measurement and / or L1-SINR measurement may include a smaller bit field size for the L1-RSRP measurement and / or L1-SINR measurement of the reported beam (such as a smaller number of bits for reporting the RSRP measurement and / or SINR measurement of the first reporting beam and the differential RSRP value and / or differential SINR value of the other beams). That is, the CSI report generated according to the selected format may have a different size from the CSI report generated according to other formats. More specifically, the CSI report generated according to the selected format may be more compact in size than the CSI report generated according to other formats.
[0134] In some aspects, a CSI report generated according to a format selected from a set of formats may include a CSI field having a smaller bit field size for reporting L1-RSRP measurements and / or L1-SINR measurements. For example, a CSI report generated according to a selected format may include a CSI field having a bit field size for L1-RSRP and / or L1-SINR that is smaller than the bit field size of a corresponding CSI field of a CSI report generated according to a format other than the selected format. In particular, a CSI report generated according to a selected format may include a CSI field for L1-RSRP and / or L1-SINR that has a bit field size of less than 7 bits. Therefore, a CSI report generated according to the selected format may be more compact in size and may improve the coverage area of a channel carrying a CSI report, thereby increasing the reliability of a beam management process.
[0135] In some aspects, the compact L1-RSRP and / or compact L1-SINR may be associated with a fewer number of beams than the default report. That is, the UE 702 may generate a CSI report reporting L1-RSRP measurements and / or L1-SINR measurements for a predetermined maximum number of beams. For example, the UE 702 may generate a CSI report including L1-RSRP measurements and / or L1-SINR measurements for, for example, one, two, or three maximum numbers of beams. In some aspects, the predetermined maximum number of beams to be included in the CSI may be a fixed number of beams.
[0136] In some aspects, the UE 702 may receive information 708 indicating a maximum number of beams to be reported in a CSI report from the base station 704. The UE 702 may then generate a CSI report including L1-RSRP measurements and / or L1-SINR measurements for a number of beams that is equal to or less than the maximum number of beams indicated in the information received from the base station 704. Thus, the maximum number of beams reported in the CSI report may be adjusted to manage the overall size of the CSI report, and thus, the channel carrying the CSI report may have an improved coverage area, thereby increasing the reliability of the beam management process.
[0137] In some aspects, a compact CSI report may combine reports of L1-RSRP measurements and / or L1-SINR measurements. That is, UE 702 may generate a CSI report to include L1-RSRP measurements and / or L1-SINR measurements in a combined format. Specifically, a CSI report generated according to a format selected from a format set may include L1-RSRP measurements and / or L1-SINR measurements in a combined format. Therefore, the CSI report generated by UE 702 may include L1-RSRP measurements and / or L1-SINR measurements in a more compact format, and therefore, the channel carrying the CSI report may have an improved coverage area, thereby increasing the reliability of the beam management process.
[0138] In some aspects, the format of a compact CSI report for reporting L1-RSRP measurements and / or L1-SINR measurements, or the format of a CSI report for a combined report including L1-RSRP measurements and / or L1-SINR measurements, may be uniquely predefined. In addition, the format of the CSI report may include multiple format options, from which the format of the CSI may be selected by configuration and / or dynamic signaling. That is, the format of the CSI report for reporting L1-RSRP measurements and / or L1-SINR measurements may be uniquely predefined, or may be a set of formats from which the UE 702 may select a format based at least in part on configuration and / or dynamic signaling of the configuration.
[0139] In some aspects, the list of options for the format for reporting L1-RSRP measurements and / or L1-SINR measurements may depend on the frequency range or band of the SSB and / or CSI-RS. That is, the UE 702 may determine a set of formats based at least in part on the properties of the received SSB and / or CSI-RS. For example, the format set 724 may be determined based at least in part on the frequency range or band associated with the received SSB and / or CSI-RS. Thus, the UE 702 may improve the coverage area of the channel carrying the CSI report by selecting a format for the CSI report that is more suitable for the properties of the SSB and / or CSI-RS received from the base station 704, which may increase the reliability of the beam management process.
[0140] In some aspects, generation of compact L1-RSRP and / or compact L1-SINR may be dynamically activated via DCI or MAC control element (CE) (MAC-CE) by gNB 180 or base station 704. That is, UE 702 may dynamically select a format for a CSI report in response to receiving a DCI and / or MAC-CE from base station 704, which may dynamically activate or instruct UE 702 to generate a CSI report including compact L1-RSRP and / or compact L1-SINR.
[0141] In some aspects, generation of compact L1-RSRP and / or compact L1-SINR may be semi-statically activated during configuration of CSI reporting settings (e.g., settings for periodic CSI reporting and / or semi-persistent CSI reporting). That is, UE 702 may semi-statically receive configuration of CSI reporting settings, which may activate or instruct UE 702 to semi-statically generate CSI reports including L1-RSRP measurements and / or L1-SINR measurements in a compact format.
[0142] In some aspects, generation of a compact L1-RSRP and / or a compact L1-SINR may be triggered by the UE 702 based at least in part on measurements made by the UE 702, and the trigger may be indicated back to the base station 704 via the UCI. That is, the UE 702 may select a format for reporting the L1-RSRP measurement and / or the L1-SINR measurement based at least in part on the measured L1-RSRP value and / or the measured L1-SINR value, and indicate the selected format and details of the selected format to the base station 704. In addition, in the event that a format subset is selected from a set of formats for reporting the L1-RSRP measurement and / or the L1-SINR measurement according to a semi-static and / or dynamic configuration received from the base station 704, the UE 702 may determine the format 716 from the format subset based at least in part on the measured L1-RSRP value and / or the measured L1-SINR value. Thus, the UE 702 may analyze the L1-RSRP measurement and / or the L1-SINR measurement based at least in part on the L1-RSRP measurement and / or the L1-SINR measurement. Figure 1 The environment of the illustrated wireless network 100 is provided, and the coverage area of the channel carrying the CSI report is improved by generating the CSI report in a format more suitable for the analyzed wireless communication system and the environment of the wireless network 100, thereby increasing the reliability of the beam management process.
[0143] In some aspects, a compact CSI report for reporting L1-RSRP measurements and / or L1-SINR measurements may be activated / deactivated or activated with an expiration time 726. The expiration time may be configured via an expiration timer, which may be pre-configured based at least in part on the DCI and / or UCI. That is, the UE 702 may configure a timer 718 for activating and / or deactivating the generation of a CSI report according to a selected format, and the generation of a CSI report according to the selected format may be further activated or deactivated based on the timer. In particular, the generation of a CSI report according to the selected format may be activated or deactivated based at least in part on a preconfigured timer. In addition, the generation of a CSI report according to the selected format may be activated or deactivated based at least in part on a timer set by the DCI or UCI.
[0144] In some aspects, the UE 702 may send information 720 indicating the format of the CSI report in the UCI to the base station 704. The UE 702 may send the information 720 indicating the format of the CSI report to the base station 704 before sending the CSI report 722 to the base station 704. In another configuration, the UE 702 may send the information 720 indicating the format of the CSI report to the base station 704 while sending the CSI report 722 to the base station 704.
[0145] Figure 8800 is a flow chart of a wireless communication method according to the present disclosure. The method may be performed by a device of UE 702. The device may be a processor / modem of UE 702 or UE 702 itself. The device may also be referred to as UE 702 in this document.
[0146] At 802, UE 702 may receive a semi-static and / or dynamic CSI report from base station 704 to select a format or a subset of formats from a set of formats for reporting L1-RSRP measurements and / or L1-SINR measurements in a CSI report. Figure 7 , the UE 702 may receive a semi-static and / or dynamic configuration 706 from the base station 704 and select a format or a subset of formats from a set of formats for CSI reports for reporting L1-RSRP measurements and / or L1-SINR measurements 712. In some aspects, the semi-static CSI reporting configuration may be received via a configuration of a CSI reporting setting, and the dynamic signaling may be received via a DCI and / or a MAC-CE.
[0147] At 804, the UE 702 may generate a CSI report based at least in part on the received SSB or the received CSI-RS and based at least in part on the received semi-static and / or dynamic CSI reporting configuration. In particular, the UE 702 may generate a CSI report based at least in part on the received SSB or the received CSI-RS and according to a format selected based at least in part on the received semi-static configuration and / or the received dynamic signaling.
[0148] In some aspects, reference Figure 7 , UE 702 may receive SSB and / or CSI-RS 710 from base station 704. Upon receiving the SSB or CSI-RS, UE 702 may measure L1-RSRP values and / or L1-SINR values 714 for the detected multiple beams and generate a CSI report 718 reporting the L1-RSRP measurements and / or L1-SINR measurements according to a selected format.
[0149] In some aspects, referring back to Figure 7 , when selecting a format subset from a set of formats for reporting L1-RSRP measurements and / or L1-SINR measurements based on a semi-static and / or dynamic CSI report received from a base station 704, the UE 702 may determine to select a format 716 from the subset of formats for CSI reporting based at least in part on the measured L1-RSRP value and / or L1-SINR value.
[0150] At 806, UE 702 may send the generated CSI report to base station 704. Figure 7, UE 702 may send a CSI report 722 to base station 704. The CSI report may be one of a periodic CSI report or a semi-persistent CSI report. Figure 7 , the UE 702 may send information 720 indicating the format of the CSI report to the base station 704 before or simultaneously with sending the CSI report 722 to the base station 704.
[0151] Refer again Figure 7 and Figure 8 As described above, a UE 702 configured for 5G NR may generate a CSI report including an L1-RSRP measurement or an L1-SINR measurement for a beam management process. However, the size of the CSI report reporting the L1-RSRP measurement or the L1-SINR measurement may affect the coverage area of the channel carrying the CSI report and the reliability of the beam management process. In order to improve the coverage area of the channel carrying the CSI report and increase the reliability of the beam management process, the UE 702 may generate a CSI report including an alternative format for reporting the L1-RSRP measurement and / or the L1-SINR measurement. In particular, the UE 702 may receive a semi-static and / or dynamic configuration 706 and an SSB and / or CSI-RS 710 from the base station 704. The UE 702 may select a format 712 from a set of formats for reporting L1-RSRP measurements and / or L1-SINR measurements based at least in part on a CSI reporting configuration received from the base station 704, and measure L1-RSRP values and / or L1-SINR values 714 in response to an SSB or CSI-RS received from the base station 704 to generate a CSI report 718 reporting L1-RSRP measurements and / or L1-SINR measurements using the selected format. The CSI report may include an absolute value of the L1-RSRP measurement and / or L1-SINR measurement for a first reporting beam and a differential L1-RSRP value and / or differential L1-SINR value for other beams. The CSI report may have a compact (or alternative) size that is different from (or smaller than) a CSI report generated according to other formats. Specifically, the CSI report generated according to the selected format may include a CSI field having a bit field size for reporting L1-RSRP measurement and / or L1-SINR measurement that is smaller than the bit field size of the corresponding CSI field of the CSI report generated according to a format other than the selected format. For example, the CSI report may include a bit field size of less than 7 bits for reporting L1-RSRP measurement and / or L1-SINR measurement. In addition, the CSI report may also include L1-RSRP measurement and / or L1-SINR measurement in a combined format. Therefore, UE 702 can improve the coverage area of the channel carrying the CSI report and improve the reliability of the beam management process.
[0152] As indicated above, the Figure 7 and Figure 8 As an example. Other examples can be related to Figure 7 and Figure 8 Different than described.
[0153] The following provides an overview of some aspects of the disclosure:
[0154] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: sending a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and sending a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources.
[0155] Aspect 2: The method according to aspect 1, wherein the first set of beams includes one or more best beams from among the plurality of measurement beams, which are based at least in part on measurements associated with the plurality of measurement beams.
[0156] Aspect 3: The method according to any one of aspects 1-2, wherein the first part is sent using a first periodicity, and the second part is sent using a second periodicity different from the first periodicity.
[0157] Aspect 4: The method of aspect 3, wherein the first portion is sent more frequently than the second portion based at least in part on the first periodicity and the second periodicity.
[0158] Aspect 5: The method according to any one of aspects 1-4, wherein sending the first part and sending the second part are based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with sending a single-part layer 1 measurement report.
[0159] Aspect 6: The method according to aspect 5, wherein the first periodicity is shorter than the second periodicity.
[0160] Aspect 7: The method according to any one of aspects 1-6 further comprises: receiving signaling indicating that the layer 1 measurement report is to be sent as a first part and a second part, wherein sending the first part and sending the second part are at least partially based on the signaling.
[0161] Aspect 8: The method according to aspect 7, wherein the signaling includes downlink control information or medium access control signaling.
[0162] Aspect 9: The method according to aspect 8, wherein the signaling indicates a configuration associated with the semi-persistent or periodic reporting, wherein the configuration indicates that the layer 1 measurement report is to be sent as a first part and a second part.
[0163] Aspect 10: The method according to aspect 7, wherein the signaling includes configuration information for channel state information reporting.
[0164] Aspect 11: The method according to aspect 10, wherein the configuration information is associated with periodic or semi-persistent channel state information reporting.
[0165] Aspect 12: The method according to aspect 7, wherein the signaling indicates a timer associated with the transmission of the layer 1 measurement report as the first part and the second part.
[0166] Aspect 13: The method according to any one of aspects 1-12, further comprising: determining that a layer 1 measurement report is to be sent as a first part and a second part, wherein sending the first part and sending the second part are based at least in part on the determination.
[0167] Aspect 14: The method according to aspect 13, wherein the determination is based at least in part on one or more measurements associated with a layer 1 measurement report.
[0168] Aspect 15: The method according to aspect 13 further comprises: sending information indicating that the layer 1 measurement report is to be sent as a first part and a second part.
[0169] Aspect 16: The method according to aspect 15, wherein the transmitted information indicates a timer associated with the transmission of the layer 1 measurement report as the first part and the second part.
[0170] Aspect 17: The method according to any one of Aspects 1-16 further includes: sending a third part of a layer 1 measurement report, wherein the third part includes measurement information for a third beam set different from the first beam set and the second beam set.
[0171] Aspect 18: The method according to any one of aspects 1-17, wherein the layer 1 measurement report is based at least in part on at least one of: a layer 1 signal to interference plus noise measurement, or a layer 1 reference signal received power measurement.
[0172] Aspect 19: A wireless communication method performed by a base station, comprising: receiving a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first beam set; and receiving a second part of a layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first part and the second part are received using different time resources, and wherein the first beam set and the second beam set are associated with a single user equipment (UE).
[0173] Aspect 20: The method according to aspect 19, wherein the first set of beams includes one or more best beams from among the plurality of measurement beams, which are based at least in part on measurements associated with the plurality of measurement beams.
[0174] Aspect 21: The method according to any of aspects 19-20, wherein the first part is received at least in part based on a first periodicity, and the second part is received at least in part based on a second periodicity different from the first periodicity.
[0175] Aspect 22: The method according to any of aspects 19-21, wherein receiving the first part and receiving the second part are based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with receiving single-part layer 1 measurement reports.
[0176] Aspect 23: The method according to any one of aspects 19-22 further comprises: sending signaling indicating that the layer 1 measurement report is to be sent as a first part and a second part, wherein receiving the first part and receiving the second part are at least partially based on the signaling.
[0177] Aspect 24: A method according to Aspect 23, wherein the signaling includes downlink control information or medium access control signaling, and wherein the signaling indicates a configuration associated with semi-persistent or periodic reporting, wherein the configuration indicates that the layer 1 measurement report is to be sent as a first part and a second part.
[0178] Aspect 26: The method according to Aspect 23, wherein the signaling includes configuration information for channel state information reporting.
[0179] Aspect 27: The method according to any one of aspects 19-26 further comprises: receiving information indicating that the layer 1 measurement report is to be sent as a first part and a second part.
[0180] Aspect 28: An apparatus for wireless communication at a device, 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 the method described in one or more of Aspects 1-27.
[0181] Aspect 29: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, wherein the memory and the one or more processors are configured to execute the method described in one or more of Aspects 1-27.
[0182] Aspect 30: An apparatus for wireless communication, comprising at least one component for performing the method of one or more of aspects 1-27.
[0183] Aspect 31: A non-transitory computer-readable medium storing a code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-27.
[0184] Aspect 32: 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 the method of one or more aspects of aspects 1-27.
[0185] 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 are possible in light of the above disclosure or may be acquired from practice of these aspects.
[0186] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, programs and / or functions, and other examples, whether referred to as software, firmware, middleware, microcode, hardware description language or other. As used herein, the processor is implemented with a combination of hardware and / or hardware and software. Obviously, the system and / or method described herein can be implemented with 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 these aspects. Therefore, the operation and behavior of the system and / or method are described herein without reference to a specific software code-it should be understood that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.
[0187] 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.
[0188] Although specific combinations of features are recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically recorded in the claims and / or disclosed in the specification. Although each dependent claim listed below can directly depend on a claim, the disclosure of various aspects includes the combination of each dependent claim with each other claim in the claim set. As used herein, the phrase "at least one" referring to the list of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other order of a, b and c).
[0189] Any element, action or instruction used herein should not be interpreted as key or necessary unless clearly stated. In addition, as used herein, the articles "one" and "an" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items related to the article "the", 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 (e.g., related items, unrelated items, combinations of related and unrelated items, etc.), and can be used interchangeably with "one or more". If it is intended to use only one item, the phrase "only one item" or similar language is used. In addition, as used herein, the terms "have", "with", "have", etc. are intended to be open terms. In addition, unless otherwise clearly stated, the phrase "based on" is intended to mean "based at least in part". In addition, as used herein, unless otherwise clearly stated (e.g., used in combination with "or" or "only one"), the term "or" is intended to be inclusive when used in a series, and can be used interchangeably with "and / or".
Claims
1. A method of wireless communication performed by a user equipment UE, comprising: Sending a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first set of beams; as well as sending a second part of the layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources; Wherein sending the first part and sending the second part are based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with sending a single-part layer 1 measurement report.
2. The method according to claim 1, wherein: The first set of beams includes one or more best beams from among a plurality of measurement beams, the best beams being based at least in part on measurements associated with the plurality of measurement beams.
3. The method according to claim 1, wherein: The first portion is sent using a first periodicity and the second portion is sent using a second periodicity different from the first periodicity.
4. The method according to claim 3, wherein: Based at least in part on the first periodicity and the second periodicity, the first portion is sent more frequently than the second portion.
5. The method according to claim 1, wherein: The first periodicity is shorter than the second periodicity.
6. The method according to claim 1, further comprising: Signaling is received indicating that the layer 1 measurement report is to be sent as the first part and the second part, wherein sending the first part and sending the second part are based at least in part on the signaling.
7. The method according to claim 6, wherein: The signaling includes downlink control information or medium access control signaling.
8. The method according to claim 7, wherein: The signaling indicates a configuration associated with semi-persistent or periodic reporting, wherein the configuration indicates that the layer 1 measurement report is to be sent as the first part and the second part.
9. The method according to claim 6, wherein: The signaling includes configuration information for channel state information reporting.
10. The method according to claim 9, wherein: The configuration information is associated with periodic or semi-persistent channel state information reporting.
11. The method according to claim 6, wherein: The signaling indicates a timer associated with sending of the layer 1 measurement report as the first part and the second part.
12. The method according to claim 1, further comprising: It is determined that the layer 1 measurement report is to be sent as the first part and the second part, wherein sending the first part and sending the second part are based at least in part on the determination.
13. The method according to claim 12, wherein: The determination is based at least in part on one or more measurements associated with the layer 1 measurement report.
14. The method according to claim 12, further comprising: Information indicating that the layer 1 measurement report is to be sent as the first part and the second part is sent.
15. The method according to claim 14, wherein: The transmitted information indicates a timer associated with the transmission of the layer 1 measurement report as the first part and the second part.
16. The method according to claim 1, further comprising: A third part of the layer 1 measurement report is sent, wherein the third part includes measurement information for a third set of beams different from the first set of beams and the second set of beams.
17. The method according to claim 1, wherein: The layer 1 measurement report is based at least in part on at least one of: Layer 1 signal-to-interference-plus-noise measurements, or Layer 1 reference signal received power measurement.
18. A method of wireless communication performed by a base station, comprising: receiving a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first set of beams; as well as receiving a second part of the layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first part and the second part are received using different time resources, and wherein the first beam set and the second beam set are associated with a single user equipment UE; Wherein receiving the first portion and receiving the second portion are based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with receiving single-part layer 1 measurement reports.
19. The method according to claim 18, wherein: The first set of beams includes one or more best beams from among a plurality of measurement beams, the best beams being based at least in part on measurements associated with the plurality of measurement beams.
20. The method according to claim 18, wherein: The first portion is received based at least in part on a first periodicity, and the second portion is received based at least in part on a second periodicity different from the first periodicity.
21. The method of claim 18, further comprising: Signaling is sent indicating that the layer 1 measurement report is to be sent as the first part and the second part, wherein receiving the first part and receiving the second part are based at least in part on the signaling.
22. The method according to claim 21, wherein: The signaling includes downlink control information or medium access control signaling, and wherein the signaling indicates a configuration associated with semi-persistent or periodic reporting, wherein the configuration indicates that the layer 1 measurement report is to be sent as the first part and the second part.
23. The method according to claim 21, wherein: The signaling includes configuration information for channel state information reporting.
24. The method of claim 18, further comprising: Information indicating that the layer 1 measurement report is to be sent as the first part and the second part is received.
25. A user equipment UE for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory and the one or more processors being configured to: Sending a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first set of beams; as well as sending a second part of the layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, and wherein the first part and the second part are sent using different time resources; Wherein the first part and the second part are sent based at least in part on a first periodicity, wherein the first periodicity is different from a second periodicity associated with sending a single-part layer 1 measurement report.
26. The UE according to claim 25, wherein: The first set of beams includes one or more best beams from among a plurality of measurement beams, the best beams being based at least in part on measurements associated with the plurality of measurement beams.
27. The UE according to claim 25, wherein: The first portion is sent using a first periodicity and the second portion is sent using a second periodicity different from the first periodicity.
28. A base station for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory and the one or more processors being configured to: receiving a first part of a layer 1 measurement report, wherein the first part includes measurement information for a first set of beams; and receiving a second part of the layer 1 measurement report, wherein the second part includes measurement information for a second beam set, wherein the second beam set is different from the first beam set, wherein the first part and the second part are received using different time resources, and wherein the first beam set and the second beam set are associated with a single user equipment UE; Wherein the first portion and the second portion are received at least in part based on a first periodicity, wherein the first periodicity is different from a second periodicity associated with receiving single-part layer 1 measurement reports.
Citation Information
Patent Citations
Measurement reporting in radio access networks for mu-mimo operation
CN110741566A