Field mapping order for each physical layer CSI report on PUSCH

Abstract

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining a field mapping order for a physical layer (PHY / L1) channel state information (CSI) report sent on a physical uplink shared channel (PUSCH). Example methods generally include measuring one or more metrics to be reported in one or more physical layer CSI reports, determining a field mapping order for each physical layer CSI report, and sending the physical layer CSI report via the PUSCH, wherein the one or more metrics are in a CSI field that occurs according to the determined field mapping order.

Description

[0001] Priority Statement

[0002] This application claims the benefit of and priority to PCT Application No. PCT / CN2020 / 089417, filed on May 9, 2020, which is expressly incorporated herein by reference in its entirety as if fully set forth below and for all applicable purposes. Technical Field

[0003] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for determining a field mapping order for a physical layer (PHY / L1) channel state information (CSI) report sent on a physical uplink shared channel (PUSCH). Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, etc. These wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access systems include Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, 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, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name just a few.

[0005] In some examples, a wireless multiple access communication system may include multiple base stations (BSs), each BS being capable of simultaneously supporting communications for multiple communication devices (or referred to as user equipment (UE)). In an LTE or LTE-A network, a collection of one or more base stations may define an eNodeB (eNB). In other examples (e.g., in a next generation, new radio (NR) or 5G network), a wireless multiple access communication system may include multiple distributed units (DUs) (e.g., edge units (EUs), edge nodes (ENs), radio heads (RHs), smart radio heads (SRHs), transmit receive points (TRPs), etc.) communicating with multiple central units (CUs) (e.g., central nodes (CNs), access node controllers (ANCs), etc.), wherein a collection of one or more distributed units communicating with a central unit may define an access node (e.g., which may be referred to as a base station, a 5G NB, a next generation node B (gNB or gNodeB), a TRP, etc.). A base station or distributed unit may communicate with a set of UEs on downlink channels (eg, for transmissions from the base station to the UEs) and uplink channels (eg, for transmissions from the UEs to the base station or distributed unit).

[0006] These multiple access technologies have been adopted in a variety of telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, or even global level. New Radio (NR) (e.g., 5G) is an example of an emerging telecommunication standard. NR is an evolutionary set of LTE mobile standards released by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards using OFDMA with cyclic prefix (CP) on downlink (DL) and uplink (UL). To this end, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0007] However, as the demand for mobile broadband access continues to increase, there is a need to further improve NR and LTE technologies. Preferably, these improvements can also be applied to other multiple access technologies and communication standards that employ these technologies. Summary of the invention

[0008] The systems, methods, and devices of the present disclosure each have several aspects, no single one of which is solely responsible for its desirable attributes. Without limiting the scope of the present disclosure as represented by the claims that follow, some features will now be briefly discussed. After considering this discussion, and particularly after reading the section entitled "Detailed Description," those skilled in the art will understand how the features of the present disclosure provide advantages, including improved communication between access points and stations in a wireless network.

[0009] Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The method generally includes: measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports; determining a field mapping order for each physical layer CSI report; and sending the physical layer CSI report via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in CSI fields that occur according to the determined field mapping order.

[0010] Certain aspects of the present disclosure are directed to an apparatus for wireless communication by a UE. The apparatus generally includes a memory and at least one processor coupled to the memory, the memory and the at least one processor configured to: measure one or more metrics to be reported in one or more physical layer CSI reports; determine a field mapping order for each physical layer CSI report; and send the physical layer CSI report via a PUSCH, wherein the one or more metrics are in a CSI field that occurs according to the determined field mapping order.

[0011] Certain aspects of the present disclosure are directed to an apparatus for wireless communication by a UE. The apparatus generally includes: means for measuring one or more metrics to be reported in one or more physical layer CSI reports; means for determining a field mapping order for each physical layer CSI report; and means for sending the physical layer CSI report via a PUSCH, wherein the one or more metrics are in a CSI field occurring according to the determined field mapping order.

[0012] Certain aspects of the present disclosure provide a computer-readable medium having instructions stored thereon for: measuring one or more metrics to be reported in one or more physical layer CSI reports; determining a field mapping order for each physical layer CSI report; and sending a physical layer CSI report via a PUSCH, wherein the one or more metrics are in a CSI field occurring according to the determined field mapping order.

[0013] Certain aspects of the present disclosure provide a method for wireless communication by a network entity. The method generally includes: receiving one or more physical layer CSI reports having one or more metrics from a UE; determining a field mapping order for each physical layer CSI report; and processing the one or more metrics in the CSI field that appear according to the determined field mapping order.

[0014] Certain aspects of the present disclosure are directed to an apparatus for wireless communication by a network entity. The apparatus generally includes a memory and at least one processor coupled to the memory, the memory and the at least one processor configured to: receive one or more physical layer CSI reports having one or more metrics from a UE; determine a field mapping order for each physical layer CSI report; and process the one or more metrics in the CSI field that appear according to the determined field mapping order.

[0015] Certain aspects of the present disclosure are directed to an apparatus for wireless communication by a network entity. The apparatus generally includes: a unit for receiving one or more physical layer CSI reports having one or more metrics from a UE; a unit for determining a field mapping order for each physical layer CSI report; and a unit for processing the one or more metrics in the CSI field that appear according to the determined field mapping order.

[0016] Certain aspects of the present disclosure provide a computer-readable medium having instructions stored thereon for: receiving one or more physical layer CSI reports having one or more metrics from a UE; determining a field mapping order for each physical layer CSI report; and processing one or more metrics in a CSI field that appear according to the determined field mapping order.

[0017] To achieve the aforementioned and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are only indicative of some of the various ways in which the basic principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order that the above-mentioned features of the present disclosure may be understood in detail, a more specific description of the content briefly summarized above may 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 are therefore not to be considered as limiting the scope thereof, as the specification may admit to other equally effective aspects.

[0019] Figure 1 is a block diagram conceptually illustrating an example telecommunications system in accordance with certain aspects of the present disclosure.

[0020] Figure 2 is a block diagram illustrating an example logical architecture of a distributed radio access network (RAN) in accordance with certain aspects of the present disclosure.

[0021] Figure 3 is a block diagram illustrating an example physical architecture of a distributed RAN in accordance with certain aspects of the present disclosure.

[0022] Figure 4 is a block diagram conceptually illustrating designs of example base stations (BSs) and user equipments (UEs) in accordance with certain aspects of the present disclosure.

[0023] Figure 5 is a diagram illustrating an example for implementing a communication protocol stack in accordance with certain aspects of the present disclosure.

[0024] Figure 6 An example of a frame format for a New Radio (NR) system is shown in accordance with certain aspects of the present disclosure.

[0025] Figure 7 Certain aspects of the present disclosure illustrate how different synchronization signal blocks (SSBs) may be sent using different beams.

[0026] Figure 8 An example transmission resource mapping is shown in accordance with certain aspects of the present disclosure.

[0027] Fig. 9 An example quasi-co-located (QCL) relationship is shown in accordance with certain aspects of the present disclosure.

[0028] Fig.10 Example operations for wireless communications by a user equipment (UE) are shown in accordance with certain aspects of the present disclosure.

[0029] Fig.11

[0013] Example operations for wireless communications by a network entity are shown in accordance with some aspects of the present disclosure.

[0030] Figures 12A-12C An example field mapping for a physical layer CSI report sent on a PUSCH is shown in accordance with certain aspects of the present disclosure.

[0031] Figure 13-14 An example communications device in accordance with aspects of the present disclosure is shown, which may include devices configured to perform operations for the techniques disclosed herein.

[0032] To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures. It is contemplated that elements disclosed in one aspect may be beneficially utilized on other aspects without specific recitation. DETAILED DESCRIPTION

[0033] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for determining a field mapping order for a physical layer (PHY / L1) channel state information (CSI) report sent on a physical uplink shared channel (PUSCH).

[0034] The following description provides examples and is not a limitation of the scope, applicability or examples set forth in the claims. Without departing from the scope of the present disclosure, the functions and arrangements of the elements discussed may be changed. Various examples may omit, replace or add various processes or components as needed. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted or combined. In addition, the features described with respect to some examples may be combined in other examples. For example, a device may be implemented or a method may be implemented using any number of aspects set forth herein. In addition, the scope of the present disclosure is intended to cover such a device or method: it is implemented using other structures, functions, or structures and functions other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described as "exemplary" herein is not necessarily to be interpreted as being preferred or more advantageous than other aspects.

[0035] The techniques described herein can be used for various wireless communication technologies, such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other networks. The terms "network" and "system" are often used interchangeably. A CDMA network can implement radio technologies such as Universal Terrestrial Radio Access (UTRA), CDMA 2000, and the like. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. CDMA 2000 covers IS-2000, IS-95, and IS-856 standards. A TDMA network can implement radio technologies such as Global System for Mobile Communications (GSM). An OFDMA network can implement radio technologies such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, Flash-OFDMA, and the like. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).

[0036] New Radio (NR) is an emerging wireless communication technology under development with the 5G Technology Forum (5GTF). 3GPP Long Term Evolution (LTE) and Improved LTE (LTE-A) are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the wireless networks and radio technologies mentioned above as well as other wireless networks and radio technologies. For clarity, although terms commonly associated with 3G and / or 4G wireless technologies are used herein to describe various aspects, various aspects of the present disclosure can be applied to communication systems based on other generations (such as 5G and higher versions, including NR technologies).

[0037] NR access (e.g., 5G technology) can support various wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80 MHz or above), millimeter wave (mmW) targeting high carrier frequency (e.g., 25 GHz or above), massive machine type communication MTC (mMTC) targeting non-backward compatible MTC technology, and / or mission critical services targeting ultra-reliable low latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet corresponding quality of service (QoS) requirements. In addition, these services can coexist in the same subframe.

[0038] Example Wireless Communication System

[0039] Figure 1 An example wireless communication network 100 (e.g., a new radio (NR) / fifth generation (5G) network) is shown in which aspects of the present disclosure may be performed. For example, the wireless network 100 may include a user equipment (UE) 120 that is configured to perform according to aspects of the present disclosure. Fig.10 Operation 1000 of transmitting one or more physical layer channel state information (CSI) (e.g., physical layer (PHY / L1) signal to interference plus noise ratio (SINR)) reports with the determined field mapping order. Similarly, the wireless network 100 may include a base station 110, which is configured to perform according to aspects of the present disclosure. Fig.11 Operation 1100 of receiving and processing a request from a UE (eg, executing Fig.10 Operation 1000) sends one or more physical layer CSI reports with a determined field mapping order.

[0040] like Figure 1 As shown in , the wireless network 100 may include multiple base stations (BS) 110 and other network entities. The BS may be a station that communicates with the UE. Each BS 110 may provide communication coverage for a specific geographical area. In 3GPP, the term "cell" may refer to the coverage area of ​​a Node B (NB) and / or a Node B subsystem serving the coverage area, depending on the context in which the term "cell" is used. In the NR system, the term "cell" and the next generation Node B (gNB), NR BS, 5G NB, access point (AP) or transmit receive point (TRP) may be interchangeable. In some examples, the cell may not necessarily be stationary, and the geographical area of ​​the cell may move according to the location of the mobile BS. In some examples, the base station may be interconnected to each other and / or to one or more other base stations or network nodes (not shown) in the wireless communication network 100 through various types of backhaul interfaces (such as direct physical connections, wireless connections, virtual networks, etc.) using any appropriate transmission network.

[0041] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (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, subcarrier, frequency channel, tone, subband, 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.

[0042] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. 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 residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs for users in a home, etc.). 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 in FIG. 1 , BS 110a, BS 110b, and BS 110c may be macro BSs for macro cell 102a, macro cell 102b, and macro cell 102c, respectively. BS 110x may be a pico BS for pico cell 102x. BS 110y and BS 110z may be femto BSs for femto cells 102y and 102z, respectively. A BS may support one or more (e.g., three) cells.

[0043] The wireless communication network 100 may also include a relay station. A relay station is a station that can receive transmissions of data and / or other information from an upstream station (e.g., a BS or UE) and send transmissions of the data and / or other information to a downstream station (e.g., a UE or BS). A relay station may also be a UE that relays transmissions for other UEs. Figure 1 In the example shown in FIG. 1 , a relay station 110r may communicate with a BS 110a and a UE 120r to facilitate communication between the BS 110a and the UE 120r. A relay station may also be referred to as a relay BS, a relay, or the like.

[0044] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, repeaters, 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., 20 watts), while a pico BS, a femto BS, and a repeater may have a lower transmit power level (e.g., 1 watt).

[0045] The wireless communication network 100 may support synchronous or asynchronous operation. For synchronous operation, the BSs may have similar frame timings, and transmissions from different BSs may be approximately aligned in time. For asynchronous operation, the BSs may have different frame timings, and transmissions from different BSs may not be aligned in time. The techniques described herein may be used for both synchronous and asynchronous operation.

[0046] A network controller 130 may couple to a set of BSs and provide coordination and control for these BSs. The network controller 130 may communicate with the BSs 110 via a backhaul. The BSs 110 may also communicate with each other via a wireless backhaul or a wired backhaul (eg, directly or indirectly).

[0047] UEs 120 (eg, UE 120x, UE 120y, etc.) may be dispersed throughout wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, customer premises equipment (CPE), a cellular phone, 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 home appliance, a medical device or medical apparatus, a biosensor / device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart bracelet, smart jewelry (e.g., a smart bracelet, a smart bracelet, etc.), an entertainment device (e.g., a music device, a video device, a satellite radio device, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a gaming device, an augmented reality device (augmented reality (AR), extended reality (XR), or virtual reality (VR)), or any other suitable device configured to communicate via a wireless or wired medium.

[0048] Some UEs may be considered as machine type communication (MTC) devices or evolved MTC (eMTC) devices. For example, MTC and eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, location tags, etc. that can communicate with a BS, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network such as the Internet or a cellular network), for example, via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, which may be narrowband IoT (NB-IoT) devices.

[0049] Some wireless networks (e.g., LTE) utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single carrier frequency division multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly referred to as tones, frequencies, etc. Each subcarrier can be modulated with data. Typically, modulation symbols are sent in the frequency domain using OFDM and in the time domain using SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the spacing of the subcarriers can be 15kHz, and the minimum resource allocation (referred to as a "resource block" (RB)) can be 12 subcarriers (or 180kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), the nominal fast Fourier transform (FFT) size can be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth may also be partitioned into some subbands. For example, a subband may cover 1.8 MHz (ie, 6 resource blocks), and there may be 1, 2, 4, 8 or 16 subbands for system bandwidths of 1.25, 2.5, 5, 10 or 20 MHz, respectively.

[0050] Although aspects of the examples described herein are associated with LTE technology, aspects of the present disclosure may be applicable to other wireless communication systems, such as NR. NR may utilize OFDM with CP on both the uplink and downlink, including support for half-duplex operation using TDD. Beamforming may be supported, and the beam direction may be dynamically configured. MIMO transmissions with precoding may also be supported. The MIMO configuration in the DL may support up to 8 transmit antennas with up to 8 streams and multi-layer DL transmissions of up to 2 streams per UE. Multi-layer transmissions of up to 2 streams per UE may be supported. Aggregation of multiple cells of up to 8 serving cells may be supported.

[0051] In some scenarios, air interface access may be scheduled. For example, a scheduling entity (e.g., a base station (BS), Node B, eNB, gNB, etc.) may allocate resources for communication between some or all devices and equipment within its service area or cell. A scheduling entity may be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communications, subordinate entities may utilize resources allocated by one or more scheduling entities.

[0052] The base station is not the only entity that can act as a scheduling entity. In some examples, a UE can act as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and other UEs can wirelessly communicate using the resources scheduled by the UE. In some examples, a UE can act as a scheduling entity in a peer-to-peer (P2P) network and / or a mesh network. In the mesh network example, UEs can communicate directly with each other in addition to communicating with the scheduling entity.

[0053] Return to Figure 1 , which shows a variety of potential deployments for various deployment scenarios. For example, in Figure 1 , a solid line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on a downlink and / or uplink. A thin dashed line with double arrows indicates interfering transmissions between the UE and the BS. Other lines illustrate component-to-component (e.g., UE-to-UE) communication options.

[0054] Figure 2 Shows that it can be Figure 1 1. An example logical architecture of a distributed radio access network (RAN) 200 implemented in the wireless communication network 100 shown in FIG. 5G access node 206 may include an access node controller (ANC) 202. ANC 202 may be a central unit (CU) of the distributed RAN 200. A backhaul interface for a next generation core network (NG-CN) 204 may terminate at the ANC 202. A backhaul interface for an adjacent next generation access node (NG-AN) 210 may terminate at the ANC 202. ANC 202 may include one or more transmit receive points (TRPs) 208 (e.g., cells, BSs, gNBs, etc.).

[0055] The TRP 208 may be a distributed unit (DU). The TRP 208 may be connected to a single ANC (e.g., ANC 202) or to more than one ANC (not shown). For example, for RAN sharing, Radio as a Service (RaaS), and service-specific ANC deployments, the TRP 208 may be connected to more than one ANC. Each of the TRPs 208 may include one or more antenna ports. The TRP 208 may be configured to serve services for UEs individually (e.g., dynamically selected) or jointly (e.g., joint transmission).

[0056] The logical architecture of the distributed RAN 200 can support various backhaul and fronthaul solutions. This support can be implemented across and across different deployment types. For example, the logical architecture can be based on the transmission network capabilities (e.g., bandwidth, latency, and / or jitter).

[0057] The logical architecture of the distributed RAN 200 may share features and / or components with LTE. For example, the next generation access node (NG-AN) 210 may support dual connectivity with NR and may share a common fronthaul for LTE and NR.

[0058] The logical architecture of the distributed RAN 200 may enable collaboration between TRPs 208, for example, within a TRP and / or across TRPs via the ANC 202. An inter-TRP interface may not be used.

[0059] Logical functions can be dynamically distributed in the logical architecture of the distributed RAN 200. Figure 5 As described in more detail, the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the medium access control (MAC) layer and the physical (PHY) layer can be adaptively arranged at the DU (e.g., TRP 208) or the CU (e.g., ANC202).

[0060] Figure 3 An example physical architecture of a distributed radio access network (RAN) 300 is shown in accordance with aspects of the present disclosure. A centralized core network unit (C-CU) 302 can host core network functions. The C-CU 302 can be centrally deployed. C-CU 302 functions can be offloaded (e.g., to Advanced Wireless Services (AWS)) in an attempt to handle peak capacity.

[0061] A centralized RAN unit (C-RU) 304 may host one or more ANC functions. Alternatively, the C-RU 304 may host core network functions locally. The C-RU 304 may have a distributed deployment. The C-RU 304 may be close to the network edge.

[0062] The DU 306 may host one or more TRPs (edge ​​node (EN), edge unit (EU), radio head (RH), smart radio head (SRH), etc.) The DU may be located at the edge of the network with radio frequency (RF) capabilities.

[0063] Figure 4 BS 110 and UE 120 (eg Figure 1 ) that may be used to implement aspects of the present disclosure. For example, antenna 452, processors 466, 458, 464, and / or controller / processor 480 of UE 120 may be used to perform Fig.10Operation 1000 of BS 110, and antenna 434, processor 420, 460, 438 and / or controller / processor 440 of BS 110 may be used to perform Fig.11 Operation 1100.

[0064] At the BS 110, the transmit processor 420 may receive data from the data source 412 and control information from the controller / processor 440. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), etc. The data may be for a physical downlink shared channel (PDSCH), etc. The processor 420 may process (e.g., encode and symbol map) the data and the control information, respectively, to obtain data symbols and control symbols. The processor 420 may also generate reference symbols, e.g., for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a cell-specific reference signal (CRS). The transmit (TX) multiple-input multiple-output (MIMO) processor 430 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, and / or reference symbols (if applicable), and provide output symbol streams to modulators (MODs) 432a to 432t. Each modulator 432 can process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog signals, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 432a to 432t can be transmitted via antennas 434a to 434t, respectively.

[0065] At the UE 120, antennas 452a to 452r can receive downlink signals from the base station 110 and provide received signals to demodulators (DEMODs) 454a to 454r in the transceiver, respectively. Each demodulator 454 can condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 456 can obtain received symbols from all demodulators 454a to 454r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 458 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 460, and provide decoded control information to a controller / processor 480.

[0066] On the uplink, at the UE 120, a transmit processor 464 may receive and process data from a data source 462 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller / processor 480 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 464 may also generate reference symbols for reference signals (e.g., for a sounding reference signal (SRS)). The symbols from the transmit processor 464 may be precoded by a TX MIMO processor 466 (if applicable), further processed by demodulators 454a through 454r in the transceiver (e.g., for SC-FDM, etc.), and transmitted to the base station 110. At the BS 110, the uplink signals from the UE 120 may be received by the antenna 434, processed by the modulator 432, detected by the MIMO detector 436 (if applicable), and further processed by the receive processor 438 to obtain decoded data and control information sent by the UE 120. The receive processor 438 may provide decoded data to a data sink 439 and decoded control information to a controller / processor 440 .

[0067] Controllers / processors 440 and 480 may direct the operation at base station 110 and UE 120, respectively. Processor 440 and / or other processors and modules at BS 110 may perform or direct the execution of processes for the techniques described herein. Memories 442 and 482 may store data and program codes for BS 110 and UE 120, respectively. Scheduler 444 may schedule UEs for data transmission on the downlink and / or uplink.

[0068] Figure 5 A diagram 500 showing an example of implementing a communication protocol stack according to various aspects of the present disclosure is shown. The communication protocol stack shown can be implemented by a device operating in a wireless communication system such as a 5G system (e.g., a system supporting uplink-based mobility). Figure 500 shows a communication protocol stack including a radio resource control (RRC) layer 510, a packet data convergence protocol (PDCP) layer 515, a radio link control (RLC) layer 520, a medium access control (MAC) layer 525, and a physical (PHY) layer 530. In various examples, these layers of the protocol stack can be implemented as a separate software module, a part of a processor or ASIC, a part of a non-co-located device connected by a communication link, or various combinations thereof. For example, in a protocol stack for a network access device (e.g., AN, CU, and / or DU) or a UE, co-located and non-co-located implementations can be used.

[0069] The first option 505-a shows a split implementation of the protocol stack, where the implementation of the protocol stack is located in a centralized network access device (e.g., Figure 2 ANC 202 in ) and distributed network access equipment (e.g., Figure 2 In the first option 505-a, the RRC layer 510 and the PDCP layer 515 can be implemented by the central unit, and the RLC layer 520, the MAC layer 525 and the PHY layer 530 can be implemented by the DU. In various examples, the CU and the DU can be co-located or non-co-located. In macro cell, micro cell or pico cell deployment, the first option 505-a may be useful.

[0070] The second option 505-b shows a unified implementation of the protocol stack, where the protocol stack is implemented in a single network access device. In the second option, the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530 can all be implemented by the AN. In, for example, a femtocell deployment, the second option 505-b may be useful.

[0071] Regardless of whether the network access device implements part of the protocol stack or the entire protocol stack, the UE can implement the entire protocol stack (e.g., RRC layer 510, PDCP layer 515, RLC layer 520, MAC layer 525 and PHY layer 530), as shown in 505-c.

[0072] The embodiments discussed herein may include a variety of spacing and timing arrangements. For example, in LTE, the basic transmission time interval (TTI) or packet duration is a 1ms subframe. In NR, the subframe is still 1ms, but the basic TTI is called a time slot. A subframe contains a variable number of time slots (e.g., 1, 2, 4, 8, 16 time slots) depending on the subcarrier spacing. An NR RB is 12 consecutive frequency subcarriers. NR can support a basic subcarrier spacing of 15KHz, and other subcarrier spacings (e.g., 30kHz, 60kHz, 120kHz, 240kHz, etc.) can be defined relative to the basic subcarrier spacing. Symbol and time slot lengths scale with the subcarrier spacing. The CP length also depends on the subcarrier spacing.

[0073] Figure 6600 for NR. The transmission timeline for each of the downlink and uplink may be divided into units of radio frames. Each radio frame may have a predetermined duration (e.g., 10 ms) and may be divided into 10 subframes indexed from 0 to 9, each subframe being 1 ms. Each subframe may include a variable number of slots depending on the subcarrier spacing. Each slot may include a variable number of symbol periods (e.g., 7 or 14 symbols) depending on the subcarrier spacing. An index may be assigned to the symbol period in each slot. A microslot is a subslot structure (e.g., 2, 3, or 4 symbols).

[0074] Each symbol in a slot may indicate a link direction (e.g., DL, UL, or flexible) for data transmission, and the link direction for each subframe may be switched dynamically. The link direction may be based on the slot format. Each slot may include DL / UL data and DL / UL control information.

[0075] In NR, a synchronization signal (SS) block (SSB) is transmitted. The SS block includes PSS, SSS, and two symbols of PBCH. It can be transmitted at a fixed time slot position (e.g. Figure 6 0-3) as shown in the figure. PSS and SSS can be used by UE for cell search and acquisition. PSS can provide half-frame timing, and SS can provide CP length and frame timing. PSS and SSS can provide cell identification. PBCH carries some basic system information, such as downlink system bandwidth, timing information within radio frames, SS burst set period, system frame number, etc.

[0076] Other system information, such as Remaining Minimum System Information (RMSI), System Information Blocks (SIBs), Other System Information (OSI), may be sent on a Physical Downlink Shared Channel (PDSCH) in certain subframes.

[0077] like Figure 7 As shown in , SS blocks can be organized into SS burst sets to support beam scanning. As shown, each SSB in a burst set can be sent using a different beam, which can help the UE quickly acquire the transmit (Tx) beam and receive (Rx) beam (especially for mmW applications). The physical cell identity (PCI) can still be decoded from the PSS and SSS of the SSB.

[0078] Certain deployment scenarios may include one or both NR deployment options. Some may be configured for non-standalone (NSA) and / or standalone (SA) options. Standalone cells may need to broadcast both SSBs and remaining minimum system information (RMSI) (e.g., using SIB1 and SIB2). Non-standalone cells may only need to broadcast SSBs without broadcasting RMSI. In a single carrier of NR, multiple SSBs may be sent on different frequencies and may include different types of SSBs.

[0079] Control Resource Set (CORESET)

[0080] A control resource set (CORESET) for an OFDMA system (e.g., a communication system that uses an OFDMA waveform to send a PDCCH) may include one or more sets of control resources (e.g., time and frequency resources) that are configured to transmit a PDCCH within the system bandwidth. Within each CORESET, one or more search spaces (e.g., a common search space (CSS), a UE-specific search space (USS), etc.) may be defined for a given UE. A search space is typically an area or portion in which a communication device (e.g., a UE) may search for control information.

[0081] According to various aspects of the present disclosure, a CORESET is a set of time and frequency domain resources defined in units of resource element groups (REGs). Each REG may include a fixed number (e.g., twelve) of tones in one symbol period (e.g., a symbol period of a time slot), wherein one tone in one symbol period is called a resource element (RE). A fixed number of REGs may be included in a control channel element (CCE). A set of CCEs may be used to send a new radio PDCCH (NR-PDCCH), wherein different numbers of CCEs in a set are used to send NR-PDCCH using different aggregation levels. Multiple CCE sets may be defined as search spaces for UEs, and thus a NodeB or other base station may send NR-PDCCH to a UE by sending NR-PDCCH in a set of CCEs defined as decoding candidates within the search space for the UE, and the UE may receive the NR-PDCCH by searching in the search space for the UE and decoding the NR-PDCCH sent by the NodeB.

[0082] The operating characteristics of a Node B or other base station in an NR communication system may depend on the frequency range (FR) in which the system operates. The frequency range may include one or more operating bands (e.g., "n1" band, "n2" band, "n7" band, and "n41" band), and the communication system (e.g., one or more eNBs and UEs) may operate within one or more operating bands. Frequency ranges and operating bands are described in more detail in "Base Station (BS) Radio Transmission and Reception" TS 38.104 (Release 15), which is available from the 3GPP website.

[0083] As described above, a CORESET is a set of time and frequency domain resources. A CORESET can be configured to transmit a PDCCH within the system bandwidth. The UE can determine the CORESET and monitor the CORESET for control channels. During initial access, the UE can identify the initial CORESET (CORESET#0) configuration from a field in the master information block (MIB) (e.g., pdcchConfigSIB1). The initial CORESET can then be used to configure the UE (e.g., to configure the UE with other CORESETs and / or bandwidth portions via dedicated (UE-specific) signaling). When the UE detects a control channel in the CORESET, the UE attempts to decode the control channel and communicate with the sending base station (e.g., sending cell) based on the control data provided in the control channel (e.g., sent via the CORESET).

[0084] According to various aspects of the present disclosure, when a UE is connected to a cell (or BS), the UE may receive a master information block (MIB). The MIB may be in a synchronization signal and physical broadcast channel (SS / PBCH) block on a sync raster (e.g., in the PBCH of the SS / PBCH block). In some scenarios, the sync raster may correspond to an SSB. Based on the frequency of the sync raster, the UE may determine the operating frequency band of the cell. Based on the operating frequency band of the cell, the UE may determine the minimum channel bandwidth and subcarrier spacing (SCS) of the channel. The UE may then determine an index based on the MIB (e.g., four bits in the MIB that convey an index in the range of 0-15).

[0085] Given this index, the UE can look up or locate the CORESET configuration (the initial CORESET configured through the MIB is typically referred to as CORESET#0). This can be done through one or more tables of CORESET configurations. These configurations (which include single-table scenarios) may include various subsets of indices indicating valid CORESET configurations for various combinations of minimum channel bandwidth and SCS. In some arrangements, each combination of minimum channel bandwidth and SCS may be mapped to a subset of indices in the table.

[0086] Alternatively or additionally, the UE may select a search space CORESET configuration table from a table of several CORESET configurations. These configurations may be based on the minimum channel bandwidth and the SCS. The UE may then look up the CORESET configuration (e.g., Type0-PDCCH search space CORESET configuration) from the selected table based on the index. After determining the CORESET configuration (e.g., from a single table or a selected table), the UE may then determine the CORESET to monitor based on the location (in time and frequency) of the SS / PBCH blocks and the CORESET configuration (as described above).

[0087] Figure 8 800 is shown in accordance with various aspects of the present disclosure. In the exemplary mapping, a BS (e.g., Figure 1 The BS 110a) shown in FIG. 8 transmits a SS / PBCH block 802. The SS / PBCH block includes a MIB conveying an index to a table that relates the time and frequency resources of a CORESET 804 to the time and frequency resources of the SS / PBCH block.

[0088] The BS may also send control signaling. In some scenarios, the BS may also send control signaling to the UE (e.g., Figure 1 806). The BS then sends the PDSCH to the UE. The UE may receive the MIB in the SS / PBCH block, determine the index, look up the CORESET configuration based on the index, and determine the CORESET based on the CORESET configuration and the SS / PBCH block. The UE may then monitor the CORESET, decode the PDCCH in the CORESET, and receive the PDSCH allocated by the PDCCH.

[0089] Different CORESET configurations may have different parameters for defining the corresponding CORESET. For example, each configuration may indicate the number of resource blocks (e.g., 24, 48, or 96), the number of symbols (e.g., 1-3), and an offset indicating a location on frequency (e.g., 0-38 RBs).

[0090] QCL port and TCI status

[0091] In many cases, it is important for a user equipment (UE) to know which assumptions it can make about the channels corresponding to different transmissions. For example, the UE may need to know which reference signals it can use to estimate the channel in order to decode a transmitted signal (e.g., PDCCH or PDSCH). It may also be important for the UE to be able to report relevant channel state information (CSI) to the BS (gNB) for scheduling, link adaptation, and / or beam management purposes. In NR, information about these assumptions is conveyed using the concepts of Quasi Co-location (QCL) and Transmission Configuration Indicator (TCI) states.

[0092] The QCL assumption is typically defined based on channel characteristics. According to 3GPP TS 38.214, "Two antenna ports are said to be quasi co-located if the characteristics of the channel over which symbols are transmitted on one antenna port can be derived from the channel over which symbols are transmitted on the other antenna port." These different reference signals can be considered to be quasi co-located ("QCL'd") if a receiver (e.g., UE) can apply the channel characteristics determined by detecting the first reference signal to help detect the second reference signal. The TCI state typically includes configurations such as QCL relations (e.g., QCL relations between DL RS and PDSCH DMRS ports in a CSI-RS set).

[0093] In some cases, the UE may be configured with up to M TCI states. The configuration of the M TCI states may be achieved through higher layer signaling, and the UE may be signaled to decode the PDSCH based on a detected PDCCH with a DCI indicating one of the TCI states. Each configured TCI state may include an RS set TCI-RS-SetConfig, which indicates different QCL assumptions between certain source and target signals.

[0094] Fig. 9 An example of association of DL reference signals with corresponding QCL types that may be indicated by TCI-RS-SetConfig is shown.

[0095] exist Fig. 9In the example of , the source reference signal (RS) is indicated in the top block and is associated with the target signal indicated in the bottom block. In this context, the target signal generally refers to a signal for which channel characteristics can be inferred by measuring those for the associated source signal. As described above, the UE can use the source RS to determine various channel parameters, according to the associated QCL type, and use these various channel characteristics (determined based on the source RS) to process the target signal. The target RS does not necessarily need to be the DMRS of the PDSCH, it can be any other RS: PUSCH demodulation reference signal (DMRS), CSI-RS, tracking RS (TRS) and sounding RS (SRS).

[0096] As shown, each TCI-RS-SetConfig contains parameters. For example, these parameters can configure the quasi-co-location relationship between the reference signals in the RS set and the DM-RS port group of the PDSCH. The RS set contains a reference to one or two DL RSs and an associated quasi-co-location type (QCL-Type) for each RS configured by the higher layer parameter QCL-Type.

[0097] like Fig. 9 As shown in , for the case of two DL RSs, the QCL type can be arranged in a variety of ways. For example, the QCL type may be different, whether the reference is to the same DL RS or different DL RS. In the example shown, for P-TRS, SSB is associated with type C QCL, while CSI-RS for beam management (CSIRS-BM) is associated with type D QCL.

[0098] In some scenarios, the QCL information and / or type may depend on or be a function of other information. For example, the QCL type indicated to the UE may be based on a higher layer parameter QCL-Type and may be one or a combination of the following types:

[0099] QCL Type A: {Doppler shift, Doppler spread, average delay, delay spread},

[0100] QCL type B: {Doppler shift, Doppler spread},

[0101] QCL Type C: {average delay, Doppler shift} and

[0102] QCL type D: {spatial Rx parameters},

[0103] The spatial QCL assumption (QCL-Type D) may be used to help the UE select an analog Rx beam (e.g., during a beam management procedure).For example, the SSB resource indicator may indicate that the same beam used for a previous reference signal should be used for subsequent transmissions.

[0104] The initial CORESET in the NR (e.g., CORESET ID 0 or simply CORESET#0) may be identified by the UE during initial access (e.g., via a field in the MIB). A CORESET Information Element (CORESET IE) sent via Radio Resource Control (RRC) signaling may convey information about the CORESET configured for the UE. The CORESET IE typically includes a CORESET ID, an indication of the frequency domain resources allocated to the CORESET (e.g., the number of RBs), the continuous duration of the CORESET in a number of symbols, and a Transmission Configuration Indicator (TCI) state.

[0105] As described above, a subset of TCI states provides a QCL relationship between a DL RS and a PDCCH demodulation RS (DMRS) port in an RS set (e.g., TCI-Set). A specific TCI state for a given UE (e.g., for a unicast PDCCH) can be transmitted to the UE via a medium access control (MAC) control element (MAC-CE). A specific TCI state is typically selected from a set of TCI states transmitted by a CORESETIE, where the initial CORESET (CORESET#0) is typically configured via the MIB.

[0106] Search space information may also be provided via RRC signaling. For example, the Search Space IE is another RRC IE that defines how and where to search for PDCCH candidates for a given CORESET. Each search space is associated with a CORESET. The Search Space IE identifies the search space configured for the CORESET by the Search Space ID. In one aspect, the Search Space ID associated with CORESET#0 is Search Space ID#0. The search space is typically configured via PBCH (MIB).

[0107] Example field mapping order per L1-SINR report on PUSCH

[0108] Various aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for determining a field mapping order for a physical layer (PHY / L1) channel state information (CSI) report sent on a physical uplink shared channel (PUSCH).

[0109] There are several types of CSI in New Radio (NR). For example, the types of CSI in NR include the following:

[0110] CQI (channel quality information);

[0111] PMI (precoding matrix indicator);

[0112] CRI (CSI-RS Resource Index);

[0113] SSBRI (SS / PBCH resource block indicator);

[0114] LI (layer indicator);

[0115] RI (Rank Indicator); and / or

[0116] L1-RSRP.

[0117] The physical layer parameters used for signal generation and resource element mapping for CSI-related reference signals are configured through various RRC parameters. Physical layer parameter sets are configured and stored. The CSI resource configuration specifies what type of reference signal the measurement is based on (e.g., nzp-CSI-RS-SSB, csi-IM resource), and also specifies the type of resource (e.g., such as periodic, aperiodic, or semi-persistent). The CSI report configuration specifies which CSI resource configuration is to be used for the measurement.

[0118] In 3GPP NR systems, to support L1 signal-to-noise-and-interference ratio (SINR) reporting on PUSCH, the field mapping order of each L1-SINR report on PUSCH should be specified. Therefore, aspects of the present disclosure provide a mechanism for the field mapping order of PHY / L1 CSI reports sent on PUSCH.

[0119] Fig.10 Example operations 1000 for wireless communications by a UE are shown in accordance with certain aspects of the present disclosure. For example, operations 1000 may be performed by Figure 1 The UE 120 performs to perform beam switching and apply the beam switching interruption time.

[0120] Operations 1000 begin at 1002 by measuring one or more metrics to be reported in one or more physical layer CSI reports. For example, the metric may include at least one of a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a SINR.

[0121] At 1004, the UE determines the field mapping order for each physical layer CSI report. For example, the UE may determine the field mapping order based on Fig. 12A The example table shown in , determines the field mapping order for one or more CSI reports on PUSCH.

[0122] At 1006, the UE transmits a physical layer CSI report via the PUSCH, wherein the one or more metrics are in a CSI field occurring in an order according to the determined field mapping.

[0123] Fig.11 A wireless communication method for wireless communication by a network entity is shown and may be considered as Fig.10 Example operation 1100 of the complementary operation of operation 1000. For example, operation 1100 may be performed by scheduling Fig.10 The operations 1000 of the transmission of the UE 120 are performed by the gNB.

[0124] Operations 1100 begin at 1102 by receiving one or more physical layer CSI reports having one or more metrics from a UE. At 1104, the network entity determines a field mapping order for each physical layer CSI report. At 1106, the network entity processes the one or more metrics in the CSI fields that appear according to the determined field mapping order.

[0125] As described above, the field mapping order of each L1-SINR report on the PUSCH may be determined, for example, as Fig. 12A As shown in the example table of . As shown, the mapping order may depend on how many CSI metrics are reported and what type of CSI metrics are reported (eg, whether one or more values ​​of CRI, SSBRI, or SINR are reported).

[0126] As shown, in some cases, if more than one SINR value is reported, only one absolute value (eg, SINR#1) may be reported, while differential values ​​may be reported for the other reported SINR values. This approach may help prevent the reported payload size from becoming too large.

[0127] like Fig. 12B As shown in , in some cases, the first SINR value SINR#1 may always be the largest (e.g., strongest) SINR and reported as an absolute value. In this case, the SINR values ​​(e.g., for SINR#2, SINR#3, and SINR#4, if reported, all correspond to lower SINR values) are reported as differential SINRs relative to the first (absolute) SINR value.

[0128] In some cases, the field mapping order of each L1-SINR report on PUSCH reuses the same order when reported on PUCCH. For example, the field mapping order of each L1-SINR report sent on PUCCH and PUSCH can be as described in the common table.

[0129] For CSI on PUSCH, two UCI bit sequences can be generated:

[0130] as well as

[0131]

[0132] In some cases, the first UCI bit sequence is associated with CSI part 1. The CSI fields of all CSI reports (such as Fig. 12C As shown in the table, in order from top to bottom) can be mapped to a single UCI bit sequence, for example, the UCI bit sequence:

[0133] by Start.

[0134] In some cases, Fig. 12A The table shown in provides the mapping order of the CSI fields for a report for CRI / SINR or SSBRI / SIRR reporting. For example, Fig. 12A The table shown may be Table 6.3.1.1.2-8A in 3GPP TS 38.212, and Fig. 12C The table shown may be Table 6.3.2.1.2-6 in 3GTP TS 38.212. The techniques described herein for CSI Part 1 may also be applicable to one report for CRI / SINR or SSBRI / SIRR reporting. When some CSI on PUSCH is reported on both parts, the CSI report for CRI / SINR or SSBRI / SIRR reporting is mapped in CSI Part 1.

[0135] As described herein, in some cases, each L1-SINR report may have only a single part (e.g., instead of two parts per CSI report). For example, when the higher layer parameter reportQuantity is configured to have one of the values ​​'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR', or 'ssb-Index-SINR', the CSI feedback may consist of a single part.

[0136] Fig.13The communication device 1300 is shown to include various components (eg, corresponding to unit functional components) configured to perform operations for the techniques disclosed herein, such as Fig.10 1300. The communication device 1300 includes a processing system 1302 coupled to a transceiver 1308. The transceiver 1308 is configured to transmit and receive signals for the communication device 1300, such as the various signals described herein, via an antenna 1310. The processing system 1302 may be configured to perform processing functions for the communication device 1300, including processing signals received by the communication device 1300 and / or to be transmitted by the communication device 1300.

[0137] The processing system 1302 includes a processor 1304 coupled to a computer readable medium / memory 1312 via a bus 1306. In some aspects, the computer readable medium / memory 1312 is configured to store instructions (e.g., computer executable code) that, when executed by the processor 1304, cause the processor 1304 to perform Fig.10 , or other operations for performing various techniques discussed herein. In some aspects, the computer-readable medium / memory 1312 stores: code 1314 for measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports; code 1316 for determining a field mapping order for each physical layer CSI report; and code 1318 for sending a physical layer CSI report via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in a CSI field that occurs according to the determined field mapping order. In some aspects, the processor 1304 has a circuit configured to implement the code stored in the computer-readable medium / memory 1312. The processor 1304 includes: a circuit 1326 for measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports; a circuit 1328 for determining a field mapping order for each physical layer CSI report; and a circuit 1330 for sending a physical layer CSI report via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in a CSI field that occurs according to the determined field mapping order.

[0138] Fig.14 A communication device 1400 is shown that may include various components (eg, corresponding to unit functional components) configured to perform operations for the techniques disclosed herein, such as Fig.111400. The communication device 1400 includes a processing system 1402 coupled to a transceiver 1408. The transceiver 1408 is configured to transmit and receive signals for the communication device 1400, such as the various signals described herein, via an antenna 1410. The processing system 1402 may be configured to perform processing functions for the communication device 1400, including processing signals received by the communication device 1400 and / or to be transmitted by the communication device 1400.

[0139] The processing system 1402 includes a processor 1404 coupled to a computer-readable medium / memory 1412 via a bus 1406. In some aspects, the computer-readable medium / memory 1412 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 1404, cause the processor 1404 to perform Fig.11 , or other operations for performing various techniques discussed herein. In some aspects, the computer-readable medium / memory 1412 stores: code 1414 for receiving one or more physical layer channel state information (CSI) reports having one or more metrics from a user equipment (UE); code 1416 for determining a field mapping order for each physical layer CSI report; and code 1418 for processing one or more metrics in a CSI field that appears according to the determined field mapping order. In some aspects, the processor 1404 has circuits configured to implement the code stored in the computer-readable medium / memory 1412. The processor 1404 includes: circuits 1426 for receiving one or more physical layer channel state information (CSI) reports having one or more metrics from a user equipment (UE); circuits 1428 for determining a field mapping order for each physical layer CSI report; and circuits 1430 for processing one or more metrics in a CSI field that appears according to the determined field mapping order.

[0140] Example aspects

[0141] Aspect 1: A method for wireless communication performed by a user equipment (UE), comprising: measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports; determining a field mapping order for each physical layer CSI report; and sending the physical layer CSI report via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in a CSI field that occurs according to the determined field mapping order.

[0142] Aspect 2: The method according to Aspect 1, wherein the field mapping order is based on a table associated with one or more metrics.

[0143] Aspect 3: A method according to Aspect 1 or 2, wherein the one or more metrics include at least one of the following: a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a signal to interference plus noise ratio (SINR).

[0144] Aspect 4: The method according to aspect 3, wherein the field mapping order is based on: the number of one or more metrics measured; and which metrics of the one or more metrics are measured.

[0145] Aspect 5: The method according to aspect 3 or 4, wherein the field mapping order stipulates that one or more differential SINR values ​​appear after the absolute SINR value; and the one or more differential SINR values ​​are relative to the absolute SINR value.

[0146] Aspect 6: The method according to aspect 5, wherein the absolute SINR value is the strongest SINR value among the two or more SINR values, and the other SINR values ​​among the two or more SINR values ​​are represented by one or more difference SINR values.

[0147] Aspect 7: The method according to any of aspects 1-6, wherein the field mapping order is the same as the field mapping order for a report sent via a physical uplink control channel (PUCCH).

[0148] Aspect 8: The method according to any of aspects 1-7, wherein the CSI field of the physical layer CSI report is mapped to a single uplink control information (UCI) bit sequence.

[0149] Aspect 9: The method according to any of aspects 1-8, wherein each physical layer CSI report has a single part.

[0150] Aspect 10: The method according to aspect 9, wherein the single portion is associated with a first UCI bit sequence of at least two UCI bit sequences.

[0151] Aspect 11: The method of aspect 9, wherein each physical layer CSI report has a single part when the higher layer report quantity parameter is configured with one of the following values: 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR' or 'ssb-Index-SINR'.

[0152] Aspect 12: A method for wireless communication performed by a network entity, comprising: receiving one or more physical layer CSI reports having one or more metrics from a UE; determining a field mapping order for each physical layer CSI report; and processing one or more metrics in a CSI field appearing according to the determined field mapping order.

[0153] Aspect 13: The method according to Aspect 12, wherein the field mapping order is based on a table associated with one or more metrics.

[0154] Aspect 14: The method according to aspect 12 or 13, wherein the one or more metrics include at least one of the following: CRI, SSBRI or SINR.

[0155] Aspect 15: The method according to any of aspects 12-14, wherein the field mapping order is based on: the number of the one or more metrics measured; and which metrics of the one or more metrics are measured.

[0156] Aspect 16: The method according to any of aspects 12-15, wherein the field mapping order stipulates that one or more differential SINR values ​​appear after the absolute SINR value appears; and the differential SINR values ​​are relative to the absolute SINR value.

[0157] Aspect 17: The method according to aspect 16, wherein the absolute SINR value is the strongest SINR value among the two or more SINR values, and the other SINR values ​​among the two or more SINR values ​​are represented by one or more difference SINR values.

[0158] Aspect 18: The method according to any of aspects 12-17, wherein the field mapping order is the same as the field mapping order for reports transmitted over PUCCH.

[0159] Aspect 19: The method according to any of aspects 12-18, wherein the CSI field of the physical layer CSI report is mapped to a single uplink control UCI bit sequence.

[0160] Aspect 20: The method according to any of aspects 12-19, wherein each physical layer CSI report has a single part.

[0161] Aspect 21: The method according to aspect 20, wherein the single portion is associated with a first UCI bit sequence of at least two UCI bit sequences.

[0162] Aspect 22: A method according to aspect 20 or 21, wherein each physical layer CSI report has a single part when the UE is configured with a higher layer report quantity parameter having one of the following values: 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR' or 'ssb-Index-SINR'.

[0163] Aspect 23: An apparatus for wireless communication by a UE, comprising a memory and at least one processor coupled to the memory, the memory and the at least one processor configured to perform any of the operations described in aspects 1-22.

[0164] Aspect 24: An apparatus for wireless communication by a UE, comprising means for performing any of the operations described in aspects 1-22.

[0165] Aspect 25: A computer-readable medium having stored thereon instructions for performing any of the operations described in aspects 1-22.

[0166] The methods disclosed herein include one or more steps or actions for implementing these methods. These method steps and / or actions can be interchanged without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions can be modified without departing from the scope of the claims.

[0167] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. For 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 multiples of the same elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc or any other ordering of a, b, and c).

[0168] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" may include calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, a database, or another data structure), ascertaining, and the like. In addition, "determine" may also include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. In addition, "determine" may also include resolving, selecting, choosing, establishing, and the like.

[0169] The previous description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applicable to other aspects. Therefore, the claims are not limited to the various aspects shown herein, but are to be given the full scope consistent with the language of the claims, wherein, unless specifically so stated, references to singular elements are not intended to mean "one and only one", but "one or more". Unless otherwise specifically stated, the term "some" refers to one or more. All structural and functional equivalents of the elements of the various aspects described throughout the present disclosure are expressly incorporated herein by reference and are intended to be covered by the claims, and these structural and functional equivalents are known or will be known to those skilled in the art. In addition, the content disclosed herein is not intended to be dedicated to the public, regardless of whether such disclosure is explicitly recorded in the claims. In addition, no claim element is to be interpreted in accordance with the terms of 35 U.S.C. § 112 (f), unless the element is explicitly recorded using the phrase "unit for...", or in the case of a method claim, the element is explicitly recorded using the phrase "step for...".

[0170] The various operations of the methods described above may be performed by any appropriate unit capable of performing the corresponding functions. These units may include various hardware and / or software components and / or modules, including but not limited to: circuits, application specific integrated circuits (ASICs) or processors. For example, Figure 4 The processors 458, 464, 466 and / or the controller / processor 480 of the UE 120 and / or the processors 420, 430, 438 and / or the controller / processor 440 of the BS 110 shown in FIG. 1 may be configured to perform Fig.10 Operation 1000 and / or Fig.11 Operation 1100.

[0171] The unit for receiving may include Figure 4 The receiver (such as one or more antennas or a receive processor) shown in . The unit for transmitting may include Figure 4 The transmitter (such as one or more antennas or a transmit processor) shown in . The unit for determining, the unit for processing, the unit for handling, and the unit for applying may include a processing system, which may include one or more processors, such as Figure 4 1 and 120. The processors 458, 464, 466 and / or the controller / processor 480 of the UE 120 and / or the processors 420, 430, 438 and / or the controller / processor 440 of the BS 110 are shown in FIG.

[0172] In some cases, a device may have an interface (unit for outputting) that outputs a frame for transmission, rather than actually sending a frame. For example, a processor may output a frame to a radio frequency (RF) front end for transmission via a bus interface. Similarly, rather than actually receiving a frame, a device may have an interface (unit for obtaining) for obtaining a frame received from another device. For example, a processor may obtain (or receive) a frame from an RF front end for reception via a bus interface.

[0173] The various illustrative logic blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or executed using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, or in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such structure.

[0174] When implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system may be implemented using a bus architecture. Depending on the specific application of the processing system and the overall design constraints, the bus may include any number of interconnected buses and bridges. The bus may link together various circuits including a processor, a machine-readable medium, and a bus interface. The bus interface may be used to connect a network adapter, etc., to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. In the user terminal 120 (see Figure 1 ), a user interface (e.g., keyboard, display, mouse, joystick, etc.) may also be connected to the bus. The bus also links various other circuits, such as clock sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and are not described any further. The processor may be implemented using one or more general purpose processors and / or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Those of ordinary skill in the art will recognize how to best implement the described functionality for the processing system depending on the specific application and the overall design constraints imposed on the entire system.

[0175] When implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, software should be broadly interpreted as meaning instructions, data or any combination thereof, etc. Computer-readable media include both computer storage media and communication media, and communication media include any media that facilitates the transfer of computer programs from one place to another. The processor may be responsible for managing the bus and general processing, including executing software stored on a machine-readable storage medium. A computer-readable storage medium may be coupled to a processor so that the processor may read information from a storage medium and write information to the storage medium. In an alternative, a storage medium may be a part of a processor. For example, a machine-readable medium may include a transmission line, a carrier modulated by data, and / or a computer-readable storage medium having instructions stored thereon separated from a wireless node, all of which may be accessed by a processor via a bus interface. Alternatively or additionally, a machine-readable medium or any part thereof may be integrated into a processor, such as a cache and / or a general register file. For example, examples of machine-readable storage media may include RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), registers, magnetic disks, optical disks, hard disks, or any other suitable storage media, or any combination thereof. Machine-readable media may be embodied in a computer program product.

[0176] A software module may include a single instruction or multiple instructions, and may be distributed over several different code segments, distributed among different programs, and distributed across multiple storage media. A computer-readable medium may include multiple software modules. These software modules include instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include a transmission module and a receiving module. Each software module may be located in a single storage device, or distributed across multiple storage devices. For example, when a triggering event occurs, a software module may be loaded from a hard disk into a RAM. During the execution of a software module, a processor may load some of the instructions into a cache to increase access speed. Subsequently, one or more cache lines may be loaded into a general register file for execution by the processor. When referring to the functions of the following software modules, it will be understood that such functions are implemented by the processor when executing instructions from the software module.

[0177] Additionally, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared (IR), radio and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwave are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Optical disks, where magnetic disks typically reproduce data magnetically, and optical disks use lasers to reproduce data optically. Thus, in some aspects, computer-readable media may include non-transitory computer-readable media (e.g., tangible media). Additionally, for other aspects, computer-readable media may include temporary computer-readable media (e.g., signals). Combinations of the above should also be included within the scope of computer-readable media.

[0178] Thus, certain aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer-readable medium having instructions stored (and / or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein. For example, a computer program product for performing the operations described herein and in Figure 10-11 Instructions for the operations shown in .

[0179] In addition, it should be understood that the modules and / or other appropriate units for performing the methods and techniques described herein can be downloaded and / or obtained on demand by a user terminal and / or a base station. For example, such a device can be coupled to a server to facilitate the transmission of a unit for performing the methods described herein. Alternatively, the various methods described herein can be provided via a storage unit (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or a floppy disk, etc.), so that the user terminal and / or the base station can obtain the various methods after the storage unit is coupled to or provided to the device. In addition, any other appropriate technology for providing the methods and techniques described herein to the device can be utilized.

[0180] It is to be understood that the claims are not limited to the precise configuration and components shown above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.

Claims

1. A method for wireless communication by a user equipment (UE), comprising: measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports, wherein the one or more metrics include at least one of: a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a signal to interference plus noise ratio (SINR); Determining a field mapping order for each physical layer CSI report, wherein the field mapping order specifies that one or more differential SINR values ​​appear after an absolute SINR value, the one or more differential SINR values ​​being relative to the absolute SINR value; and The physical layer CSI report is sent via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in CSI fields occurring in an order according to the determined field mapping.

2. The method according to claim 1, wherein: The field mapping order is based on a table associated with the one or more metrics.

3. The method according to claim 1, wherein: The field mapping order is based on: the quantity of the one or more metrics measured; and Which of the one or more metrics are measured.

4. The method according to claim 1, wherein: The absolute SINR value is a strongest SINR value among the two or more SINR values, and other SINR values ​​among the two or more SINR values ​​are represented by the one or more difference SINR values.

5. The method according to claim 1, wherein: The field mapping order is the same as the field mapping order used for reports sent via a physical uplink control channel (PUCCH).

6. The method according to claim 1, wherein: The CSI field of the physical layer CSI report is mapped to a single uplink control information (UCI) bit sequence.

7. The method according to claim 1, wherein: Each physical layer CSI report has a single section.

8. The method according to claim 7, wherein: The single portion is associated with a first uplink control information (UCI) bit sequence of at least two UCI bit sequences.

9. The method according to claim 7, wherein: Each physical layer CSI report has a single part when the higher layer report number parameter is configured with one of the following values: 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR', or 'ssb-Index-SINR'.

10. A method for wireless communication by a network entity, comprising: Receiving one or more physical layer channel state information (CSI) reports having one or more metrics from a user equipment (UE), wherein the one or more metrics include at least one of: a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a signal to interference plus noise ratio (SINR); Determining a field mapping order for each physical layer CSI report, wherein the field mapping order specifies that one or more differential SINR values ​​appear after an absolute SINR value, the one or more differential SINR values ​​being relative to the absolute SINR value; and The one or more metrics in the CSI fields appearing in an order according to the determined field mapping are processed.

11. The method according to claim 10, wherein: The field mapping order is based on a table associated with the one or more metrics.

12. The method according to claim 10, wherein: The field mapping order is based on: the quantity of the one or more metrics measured; and Which of the one or more metrics are measured.

13. The method according to claim 10, wherein: The absolute SINR value is a strongest SINR value among the two or more SINR values, and other SINR values ​​among the two or more SINR values ​​are represented by the one or more difference SINR values.

14. The method according to claim 10, wherein: The field mapping order is the same as the field mapping order used for reports sent via a physical uplink control channel (PUCCH).

15. The method according to claim 10, wherein: The CSI field of the physical layer CSI report is mapped to a single uplink control information (UCI) bit sequence.

16. The method according to claim 10, wherein: Each physical layer CSI report has a single section.

17. The method according to claim 16, wherein: The single portion is associated with a first uplink control information (UCI) bit sequence of at least two UCI bit sequences.

18. The method according to claim 16, wherein: Each physical layer CSI report has a single part when the UE is configured with the higher layer report number parameter having one of the following values: 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR' or 'ssb-Index-SINR'.

19. An apparatus for wireless communication by a user equipment (UE), comprising: At least one processor configured to: measuring one or more metrics to be reported in one or more physical layer channel state information (CSI) reports, wherein the one or more metrics include at least one of: a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a signal to interference plus noise ratio (SINR), and Determining a field mapping order for each physical layer CSI report, wherein the field mapping order specifies that one or more differential SINR values ​​appear after an absolute SINR value, the one or more differential SINR values ​​being relative to the absolute SINR value; and A transmitter configured to: The physical layer CSI report is sent via a physical uplink shared channel (PUSCH), wherein the one or more metrics are in CSI fields occurring in an order according to the determined field mapping.

20. The device according to claim 19, wherein The field mapping order is based on a table associated with the one or more metrics.

21. The device according to claim 19, wherein The field mapping order is based on: the quantity of the one or more metrics measured; and Which of the one or more metrics are measured.

22. An apparatus for wireless communication by a network entity, comprising: At least one receiver configured to: Receiving one or more physical layer channel state information (CSI) reports having one or more metrics from a user equipment (UE), wherein the one or more metrics include at least one of: a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal / physical broadcast channel (SS / PBCH) resource block indicator (SSBRI), or a signal to interference plus noise ratio (SINR); At least one processor configured to: Determining a field mapping order for each physical layer CSI report, wherein the field mapping order specifies that one or more differential SINR values ​​appear after an absolute SINR value, the one or more differential SINR values ​​being relative to the absolute SINR value; and The one or more metrics in the CSI fields appearing in an order according to the determined field mapping are processed.

23. The device according to claim 22, wherein: The field mapping order is based on a table associated with the one or more metrics.

24. The device according to claim 22, wherein: The field mapping order is based on: the quantity of the one or more metrics measured; and Which of the one or more metrics are measured.

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