Method and apparatus for CLI reporting

Abstract

The base station may configure a CSI‑IM resource in a downlink BWP of a full-duplex time slot. The UE may measure an interference component in the CSI‑IM resource and generate / send a CLI report including the measurement of the interference component to the base station. The measurement of the interference component may include an RSSI measurement of an intra-cell CLI from an interfering uplink signal sent from an aggressor UE or an RSSI measurement of self-interference of an uplink channel of the UE. The uplink signal may be an SRS, and the CLI report may include RSSI, RSRP, and / or RSRQ of the interference in the CSI‑IM resource in the uplink channel. The CSI‑IM resource and the CLI report may have various configurations.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of the following applications: U.S. Provisional Application Serial No. 63 / 050,719, filed on July 10, 2020, and entitled “METHOD AND APPARATUS FOR CLI REPORTING”; and U.S. Patent Application No. 17 / 315,222, filed on May 7, 2021, and entitled “METHOD AND APPARATUS FOR CLI REPORTING”, the entire contents of which are expressly incorporated herein by reference. Technical Field

[0003] The present disclosure generally relates to communication systems, and more particularly, to methods of wireless communication including intra-cell cross-link interference (CLI) reporting in full-duplex (FD) communications. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communications with multiple users by sharing available system resources. 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, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continuous mobile broadband evolution released by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There is a need to further improve 5G NR technology. These improvements may also be applicable to other multiple access technologies and telecommunication standards using these technologies. Summary of the invention

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of such aspects. This summary is not a general summary of all expected aspects and is not intended to identify key or important elements of all aspects or describe the scope of any or all aspects. Its purpose is only to serve as a prelude to the more detailed description given later, giving some concepts of one or more aspects in a simplified form.

[0007] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The method and apparatus for wireless communication may be configured to report intra-cell CLI and self-interference in full-duplex communication. The base station may configure CSI-IM resources in the downlink bandwidth part (BWP) of the full-duplex time slot. The UE may measure the interference component in the channel state information (CSI) interference measurement (IM) (CSI-IM) resource, and generate a CLI report including the measurement of the interference component / send the CLI report to the base station. The measurement of the interference component may include: a received signal strength indication (RSSI) measurement of the intra-cell CLI of the interfering uplink signal sent from the aggressor UE, or an RSSI measurement of the self-interference of the uplink channel of the UE. The uplink signal may be a sounding reference signal (SRS), and the CLI report may include the RSSI, reference signal received power (RSRP), and / or reference signal received quality (RSRQ) of the interference in the CSI-IM resource in the uplink channel. The CSI-IM resource and the CLI report may have various configurations.

[0008] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and drawings set forth in detail certain illustrative features of one or more aspects. However, these features are merely indicative of some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0010] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0011] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

[0012] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0013] Figure 2Dis a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0014] Figure 3 is a diagram showing an example of a base station and a user equipment (UE) in an access network.

[0015] Figure 4A , 4B 4C show an exemplary mode of duplex communication.

[0016] Figure 5A and 5B An example of resources being In-Band Full Duplex (IBFD) is shown.

[0017] Figure 5C An example of resources used for sub-band full-duplex communication is shown.

[0018] Figure 6 are examples of time and frequency resources including full-duplex resources.

[0019] Fig. 7A and 7B Examples of intra-cell and inter-cell interference are shown.

[0020] Figure 8 An example of resources configured for sub-band full-duplex communication with multiple UEs is shown.

[0021] Fig. 9 An example of a channel state information (CSI) interference measurement (IM) (CSI-IM) resource is shown.

[0022] Fig.10 An example of a sounding reference signal (SRS) resource is shown.

[0023] Fig.11 An example of CSI-IM resources of full-duplex resources for wireless communication is shown.

[0024] Fig.12 An example of CSI-IM resources of full-duplex resources for wireless communication is shown.

[0025] Fig.13 The configuration of CSI-IM resources for wireless communication is shown.

[0026] Fig.14A An example of a CLI report for wireless communication is shown.

[0027] Fig. 14B A diagram illustrating a method of wireless communication.

[0028] Fig.15 is a call flow diagram of a method of wireless communication.

[0029] Fig.16A and 16B is a flow chart of a method of wireless communication.

[0030] Fig.17A and 17B is a flow chart of a method of wireless communication.

[0031] Fig.18 is a diagram illustrating an example of a hardware implementation for an example apparatus.

[0032] Fig.19 is a diagram illustrating an example of a hardware implementation for an example apparatus. DETAILED DESCRIPTION

[0033] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configuration in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in the form of block diagrams in order to avoid obscuring such concepts.

[0034] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the detailed description below and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any 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.

[0035] For example, an element, or any part of an element, or any combination of elements, can be implemented as a "processing system" including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform various functions described throughout the present disclosure. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, functions, etc.

[0036] Accordingly, in one or more example embodiments, the described functions can be implemented in hardware, software, or any combination thereof. If implemented in software, the functions can be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of computer-readable media types, or any other media that can be used to store computer executable code that can be accessed by a computer in the form of instructions or data structures.

[0037] Although various aspects and implementations are described in this application by the description of some examples, it will be understood by those skilled in the art that additional implementations and use cases may be generated in many different arrangements and scenarios. The innovation described herein can be implemented across many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, implementation and / or use can be generated via integrated chip implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, equipment enabling artificial intelligence (AI), etc.). Although some examples may or may not be specifically for use cases or applications, there may be a variety of applicable scopes for the described innovations. Implementations may have a range from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed or original equipment manufacturer (OEM) equipment or systems incorporating one or more aspects of the described innovations. In some actual settings, the equipment incorporating the described aspects and features may also include additional components and features for the implementation and implementation of the claimed and described aspects. For example, the transmission and reception of wireless signals necessarily include several components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The innovations described herein are intended to be implemented in a variety of devices, chip-level components, systems, distributed arrangements, end-user equipment, etc., having different sizes, shapes, and configurations.

[0038] Figure 11 is a diagram showing an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell includes a base station. A small cell includes a femto cell, a pico cell, and a micro cell.

[0039] The base station 102 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can be connected to the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). The base station 102 configured for 5G NR (collectively referred to as the Next Generation RAN (NG-RAN)) can be connected to the core network 190 via a second backhaul link 184. Among other functions, the base station 102 can perform one or more of the following functions: transfer of user data, wireless channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), user and device tracking, RAN information management (RIM), paging, positioning, and transmission of warning messages. The base stations 102 may communicate with each other directly or indirectly (eg, through the EPC 160 or the core network 190) over a third backhaul link 134 (eg, an X2 interface). The first backhaul link 132, the second backhaul link 184, and the third backhaul link 134 may be wired or wireless.

[0040] The base station 102 can communicate wirelessly with the UE 104. Each of the base stations 102 can provide communication coverage for a respective geographic coverage area 110. There can be overlapping geographic coverage areas 110. For example, a small cell 102' can have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network including small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a home evolved Node B (eNB) (HeNB), which can provide services for a restricted group called a closed subscriber group (CSG). The communication link 120 between the base station 102 and the UE 104 can include an uplink (UL) (also referred to as a reverse link) transmission from the UE 104 to the base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from the base station 102 to the UE 104. The communication link 120 can use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link can be through one or more carriers. Base station 102 / UE 104 may use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth per carrier allocated in carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction. The carriers may be adjacent to each other or may not be adjacent. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​than for UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell), and the secondary component carrier may be referred to as a secondary cell (SCell).

[0041] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through various wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE 802.11) standard, LTE, or NR.

[0042] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi base station (STA) 152 via a communication link 154, such as in a 5 GHz unlicensed spectrum. When communicating in an unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether a channel is available.

[0043] The small cell 102' may operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, the small cell 102' may adopt NR and use the same unlicensed spectrum (e.g., 5 GHz, etc.) as used by the Wi-Fi AP 150. The small cell 102' adopting NR in the unlicensed spectrum may improve the coverage of the access network and / or increase the capacity of the access network.

[0044] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified with the frequency range names FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. Similar naming issues sometimes arise with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz-300 GHz) which is identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0045] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range names FR3 (7.125GHz-24.25GHz). The bands falling into FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations beyond 52.6GHz. For example, three higher operating bands have been identified as frequency range names FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls into the EHF band.

[0046] In view of the above, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, it can be broadly referred to as a frequency that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, it can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band.

[0047] The base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include and / or be referred to as an eNB, a gNodeB (gNB), or another type of base station. Some base stations, such as gNB 180, may operate in traditional sub-6 GHz spectrum, in millimeter wave frequencies, and / or near millimeter wave frequencies to communicate with UE 104. When the gNB 180 operates in millimeter wave or near millimeter wave frequencies, the gNB 180 may be referred to as a millimeter wave base station. The millimeter wave base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short distance. The base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate beamforming.

[0048] Base station 180 may send beamformed signals to the UE in one or more transmit directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182". UE 104 may also send beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of base station 180 / UE 104. The transmit direction and receive direction for base station 180 may or may not be the same. The transmit direction and receive direction for UE 104 may or may not be the same.

[0049] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Generally speaking, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides IP address allocation and other functions for the UE. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service setup and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to allocate MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and for collecting charging information related to eMBMS.

[0050] The core network 190 may include an access and mobility management function unit (AMF) 192, other AMFs 193, a session management function unit (SMF) 194, and a user plane function unit (UPF) 195. The AMF 192 may communicate with a unified data management unit (UDM) 196. The AMF 192 is a control node for processing signaling between the UE 104 and the core network 190. Typically, the AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transmitted through the UPF 195. The UPF 195 provides IP address allocation and other functions to the UE. The UPF 195 is connected to an IP service 197. The IP service 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a packet switching (PS) stream (PSS) service, and / or other IP services.

[0051] A base station may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver, a wireless base station, a wireless transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit receive point (TRP), or some other appropriate term. Base station 102 provides an access point to EPC 160 or core network 190 for UE 104. Examples of UE 104 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, a toaster, a heart monitor, etc.). UE 104 may also be referred to by those skilled in the art as a station, a mobile station, a user station, a mobile unit, a user unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile user station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handheld device, a user agent, a mobile client, a client or some other appropriate terminology.

[0052] Refer again Figure 1 In some aspects, the UE 104 may include a CSI-IM based CLI reporting component 198 configured to: receive a configuration for one or more CSI-IM resources in a BWP from a base station, measure at least one interference component of the CSI-IM resources in the downlink BWP, generate a CLI report including the measurement of the at least one interference component, and send the CLI report to the base station. In some aspects, the base station 180 may include a CSI-IM based CLI reporting management component 199 configured to: configure CSI-IM resources in a full-duplex time slot in a downlink BWP, and receive a CLI report from a first UE, the CLI report including at least one component of interference, the interference including a measurement of interference in the CSI-IM resources based on an uplink signal sent to the base station. Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar fields, such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0053] Figures 2A-2D Included are diagrams of example frame structures and resources that may be utilized in communications between base stations 102, UEs 104, and / or secondary UEs (or sidelink UEs) 110 as described in the present disclosure. Figure 2AFIG200 is a diagram showing an example of a first subframe within a 5G / NR frame structure. Figure 2B FIG230 is a diagram showing an example of DL channels within a 5G / NR subframe. Figure 2C Figure 250 shows an example of a second subframe within a 5G / NR frame structure. Figure 2D FIG280 is a diagram showing an example of an UL channel within a 5G / NR subframe. The 5G / NR frame structure can be frequency division duplex (FDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), the subframes within the subcarrier set are dedicated to either DL or UL), or can be time division duplex (TDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), the subframes within the subcarrier set are dedicated to both DL and UL). Figure 2A , 2C In the example provided, it is assumed that the 5G / NR frame structure is TDD, subframe 4 is configured with slot format 28 (mostly DL), where D is DL, U is UL, and F is flexibly used between DL / UL, and subframe 3 is configured with slot format 1 (all UL). Although subframes 3 and 4 are shown using slot formats 1 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mix of DL, UL and flexible symbols. The UE is configured with a slot format (dynamically through DL control information (DCI) or semi-statically / statically through radio resource control (RRC) signaling) through a received slot format indicator (SFI). Note that the following description also applies to the 5G / NR frame structure as TDD.

[0054] Figures 2A-2DThe frame structure is shown, and various aspects of the present disclosure may be applicable to other wireless communication technologies, which may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 subframes (1ms) of equal size. Each subframe may include one or more time slots. A subframe may also include a microslot, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on whether the cyclic prefix (CP) is normal or extended. For a normal CP, each time slot may include 14 symbols, and for an extended CP, each time slot may include 7 symbols. The symbol on the DL may be a CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbol. The symbol on the UL may be a CP-OFDM symbol (for high throughput scenarios) or a discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbol (also referred to as a single carrier frequency division multiple access (SC-FDMA) symbol) (for power-limited scenarios; limited to single stream transmission). The number of time slots within a subframe may be based on the CP and numerology. The digital scheme defines the subcarrier spacing (SCS) and, in effect, the symbol length / duration (which is equal to 1 / SCS).

[0055]

[0056] For normal CP (14 symbols / slot), different digital schemes μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For extended CP, digital scheme 2 allows 4 slots per subframe. Accordingly, for normal CP and digital scheme μ, there are 14 symbols / slot and 2 μ timeslots / subframe. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is digital scheme 0 to 4. Thus, digital scheme μ=0 has a subcarrier spacing of 15kHz, and digital scheme μ=4 has a subcarrier spacing of 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figures 2A-2D Examples are provided for a normal CP (with 14 symbols per slot) and a digital scheme μ=2 (with 4 slots per subframe). The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP can have a specific number scheme and CP (normal or extended).

[0057] The resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also called a physical RB (PRB)), which extends 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0058] like Figure 2A As shown in , some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as R for a specific configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0059] Figure 2B Examples of various DL channels within a subframe of a frame are shown. A physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE including six RE groups (REGs), each REG including 12 consecutive REs in an OFDM symbol of an RB. A PDCCH within a BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during a PDCCH monitoring opportunity on a CORESET, wherein the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at larger and / or lower frequencies across the channel bandwidth. A primary synchronization signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identity. A secondary synchronization signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and the radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the DM-RS. The physical broadcast channel (PBCH), which carries the master information block (MIB), can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also called an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information that is not sent via the PBCH (e.g., system information block (SIB)), and paging messages.

[0060] like Figure 2CAs shown in , some of the REs carry DM-RS for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). The UE may send DM-RS for a physical uplink control channel (PUCCH) and DM-RS for a physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first one or two symbols of the PUSCH. The PUCCH DM-RS may be sent in different configurations depending on whether a short PUCCH or a long PUCCH is sent and on the specific PUCCH format used. Although not shown, the UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of the subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the combs in the comb. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0061] Figure 2D Examples of various UL channels within a subframe of a frame are shown. The PUCCH may be positioned as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and / or negative ACKs (NACKs)). The PUSCH carries data and may additionally be used to carry buffer status reports (BSRs), power headroom reports (PHRs), and / or UCI.

[0062] Figure 33 is a block diagram of a base station 310 in an access network communicating with a UE 350. In the DL, IP packets from the EPC 160 may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functions. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides: RRC layer functions associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with transmission of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), and MAC Demultiplexing of SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling and logical channel prioritization.

[0063] The transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection on the transmission channel, forward error correction (FEC) encoding / decoding of the transmission channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). Subsequently, the coded and modulated symbols may be divided into parallel streams. Subsequently, each stream may be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine coding and modulation schemes and for spatial processing. Channel estimates may be derived from reference signals and / or channel condition feedback sent by the UE 350. Each spatial stream is then provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate a radio frequency (RF) carrier with a respective spatial stream for transmission.

[0064] At the UE 350, each receiver 354RX receives a signal through its respective antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides the information to the receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functions associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream going to the UE 350. If multiple spatial streams go to the UE 350, the RX processor 356 can combine them into a single OFDM symbol stream. Subsequently, the RX processor 356 uses a fast Fourier transform (FFT) to transform the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier and the reference signal are recovered and demodulated by determining the most likely signal constellation point sent by the base station 310. These soft decisions can be based on the channel estimate calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by base station 310. The data and control signals are then provided to controller / processor 359, which implements layer 3 and layer 2 functionality.

[0065] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0066] Similar to the functions described in conjunction with the DL transmission by the base station 310, the controller / processor 359 provides: RRC layer functions, which are associated with the following: system information (e.g., MIB, SIB) acquisition, RRC connection and test reporting; PDCP layer functions, which are associated with the following: header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions, which are associated with the following: transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions, which are associated with the following: mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0067] Channel estimates derived by the channel estimator 358 from a reference signal or feedback sent by the base station 310 may be used by the TX processor 368 to select an appropriate coding and modulation scheme, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a respective spatial stream for transmission.

[0068] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to a RX processor 370.

[0069] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 350. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0070] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 198. At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1 199 related aspects.

[0071] Wireless communication systems can be configured to share available system resources and provide various telecommunication services (e.g., telephone, video, data, messaging, broadcast, etc.) based on multiple access technologies that support communication with multiple users (such as CDMA systems, TDMA systems, FDMA systems, OFDMA systems, SC-FDMA systems, TD-SCDMA systems, etc.). In many cases, common protocols that facilitate communication with wireless devices are adopted in various telecommunication standards. For example, communication methods associated with eMBB, mMTC, and URLLC may be incorporated into the 5G NR telecommunication standard, while other aspects may be incorporated into the 4G LTE standard. Since mobile broadband technology is part of the continuous evolution, further improvements to mobile broadband remain useful for continuing the development of such technology.

[0072] Figure 4A , 4B4C show various modes of duplex communication. Full-duplex communication can support the transmission and reception of information (e.g., uplink and downlink communications) in the same frequency range (e.g., on one or more frequency bands) in a temporally overlapping manner. The frequency range may include a common set of frequency bands (e.g., the same frequency band), completely overlapping frequency bands, or partially overlapping frequency bands. For example, in-band full-duplex (IBFD) operation may include the transmission and reception of signals that overlap at overlapping times and in frequency. In sub-band FDD, the transmit and receive resources may overlap in time using different frequencies, for example, separated by a guard band. The transmit and receive frequency resources may be close enough so that interference cancellation methods are used to eliminate interference from the transmit signal. In this way, full-duplex communication may have improved spectral efficiency compared to half-duplex (HD) communication (which may support the transmission or reception of information in one direction at a time without overlapping uplink and downlink communications). A UE or base station operating in full-duplex mode may perform Tx / Rx full-duplex communication simultaneously, and the UE or base station may experience self-interference caused by signal leakage from its local transmitter to its local receiver. In addition, the UE or base station may also experience interference from other network devices, such as transmissions from a second UE or a second base station. Such interference (e.g., self-interference or interference caused by other devices) may affect the quality of communication, or even cause information loss.

[0073] Figure 4A A first example of full-duplex communication 400 is shown, in which a first base station 402a can perform full-duplex communication with a first UE 404a and a second UE 406a. The first base station 402a can be a full-duplex base station, and the first UE 404a and the second UE 406a can be configured as a half-duplex UE or a full-duplex UE. The second UE 406a can send a first uplink signal to the first base station 402a and to other base stations (such as a second base station 408a near the second UE 406a). The first base station 402a can send a downlink signal to the first UE 404a concurrently with receiving an uplink signal from the second UE 406a. The first base station 402a may experience self-interference from a receiving antenna, which may be receiving an uplink signal from the second UE 406a, and the second UE 406a receives a portion of a downlink signal being sent to the first UE 404a. Due to the signal from the second base station 408a, the first base station 402a may experience additional interference. Interference may also occur at the first UE 404a based on signals from the second base station 408a and uplink signals from the second UE 406a.

[0074] Figure 4BA second example of full-duplex communication 410 is shown, in which a first base station 402b can perform full-duplex communication with a first UE 404b. In this example, the first base station 402b can be a full-duplex base station, and the first UE 404b can also be a full downlink UE. That is, the first base station 402b and the first UE 404b can concurrently receive and transmit communications that overlap in time in the same frequency band. The base station and the UE may each experience self-interference, in which the transmission signal from the device may leak to the receiver at the same device. Based on one or more signals transmitted from the second UE 406b and / or the second base station 408b near the first UE 404b, the first UE 404a may experience additional interference.

[0075] Figure 4C A third example of full-duplex communication 420 is shown, where a first UE 404c is a full-duplex UE communicating with a first base station 402c and a second base station 408c. The first base station 402c and the second base station 408c can be used as multiple transmit and receive points (multiple TRPs) for UL and DL communications with the first UE 404c. The second base station 408c can communicate with the second UE 406c. Figure 4C , the first UE 404c may concurrently send an uplink signal to the first base station 402c while receiving a downlink signal from the second base station 408c. Due to the simultaneous transmission of the first signal and the second signal, the first UE 404c may experience self-interference. For example, the uplink signal may leak to the receiver of the UE. In other words, the uplink signal may be received by the receiver of the UE. The first UE 404c may experience additional interference from the second UE 406c.

[0076] Figure 5A and 5B A first example 500 and a second example 510 of in-band full-duplex (IBFD) resources are shown. Figure 5C An example 520 of a sub-band full-duplex resource is shown. In IBFD, signals may be sent and received in overlapping times and overlapping frequencies. The first example 500 may show that the time and frequency allocation of UL resources 502 may completely overlap with the time and frequency allocation of DL resources 504. The second example 510 may show that the time and frequency allocation of UL resources 512 may partially overlap with the time and frequency allocation of DL resources 514.

[0077] Figure 5C Example 520 illustrates sub-band full duplex (SBFD), where uplink and downlink resources may overlap in time using different frequencies. Figure 5CIt is shown that the UL resources 522 can be separated from the DL resources 524 by a guard band 526. The guard band can be a frequency resource or a gap in a frequency resource provided between the UL resources 522 and the DL resources 524. Separating the UL frequency resources and the DL frequency resources using the guard band can help reduce self-interference. UL resources and DL resources that are immediately adjacent to each other can correspond to a guard band width of 0. The output signal (such as an UL transmission) from the UE transmitter can extend beyond the UL resources, and the guard band can reduce the interference experienced by the UE. Sub-band full duplex is also called "flexible duplex".

[0078] Some aspects presented herein can help provide self-interference mitigation. Some aspects can help improve isolation, for example, greater than 50 dB. Figure 6 An exemplary device 602 is shown that includes separate panels, such as antenna panels, for simultaneous transmission and reception in full-duplex operation. For example, device 602 is shown as including panel #1 and panel #2. In some aspects, panel #1 can be configured for downlink transmission. Downlink transmission can be at both edges of the frequency band, such as shown at 600 and 610. Panel #2 can be configured for uplink reception, such as using frequency resources within the frequency band, such as in the middle of the frequency band. Such as in combination Figure 5C The described sub-band full-duplex operation can be associated with an isolation of greater than 40 dB. Figure 5C As shown, the downlink and uplink resources may be in different portions of the frequency band (ie, an uplink portion and a downlink portion) with a guard band between the uplink and downlink portions of the frequency band. Figure 6 An example set of time and frequency resources 600 including half-duplex and full-duplex periods is shown. For example, a first time period 620 may include half-duplex resources for downlink data, and both panel #1 and panel #2 may receive downlink data during the first time period 620. A second time period 630 may include sub-band full-duplex resources for uplink transmission (e.g., PUSCH) and downlink reception (e.g., downlink data), and during the second time period 630, panel #1 may receive downlink data and panel #2 may transmit PUSCH. A third time period 640 may include half-duplex resources for uplink data, and both panel #1 and panel #2 may transmit PUSCH during the third time period 640. Figure 6 Also included is a graph 610 showing signal power over frequency, illustrating uplink and downlink signal leakage outside of the frequency range provided in the sub-band full-duplex resources of the second time period 630 .

[0079] When a slot has a frequency band for both uplink and downlink transmissions, the slot format may be referred to as a "D+U" slot. Downlink and uplink transmissions may occur in overlapping frequency resources, such as Figure 5A and 5B As shown (e.g., in-band full-duplex resources), or may occur in adjacent or slightly separated frequency resources, such as Figure 5C As shown (e.g., sub-band full-duplex resources). In one aspect, a D+U symbol may include at least one of an uplink frequency band or a downlink frequency band, and a half-duplex device may transmit in the uplink frequency band or receive in the downlink frequency band. In another aspect, a D+U symbol may include an uplink frequency band and a downlink frequency band, and a full-duplex device may transmit in the uplink frequency band and receive in the downlink frequency band in the same symbol or the same time slot. A D+U time slot may include a downlink symbol, an uplink symbol, and a full-duplex symbol. For example, in Figure 6 In the embodiment, the first time period 620 may extend by one or more symbols (e.g., downlink symbols), the third time period 640 may extend by one or more symbols (e.g., uplink symbols), and the second time period 630 may extend by one or more symbols (e.g., full-duplex symbols or D+U symbols).

[0080] In some aspects, the receiver may perform windowed overlap and add (WOLA) to reduce the adjacent channel leakage ratio (ACLR) for leakage of the uplink signal. An analog low pass filter (LPF) may improve the analog-to-digital conversion (ADC) dynamic range. The receiver automatic gain control (AGC) state may be improved to improve the noise figure (NF). Digital interference cancellation may be applied to leakage with an ACLR greater than a threshold value (e.g., greater than 20 dB). In some examples, a nonlinear model may be employed for each Tx-Rx pair.

[0081] In some aspects, uplink power control can be used to mitigate self-interference. For example, a full-duplex UE can reduce uplink transmission power, which can reduce the interference caused to the downlink reception in the full-duplex time slot by uplink power control. Similarly, a full-duplex base station can reduce downlink transmission power by downlink power control to reduce the interference caused to the uplink reception in the full-duplex time slot. In some examples, different uplink power control parameters can be applied to full-duplex time slots and half-duplex time slots. In some examples, subband power control parameters (such as uplink power control offset or scaling) can be applied to full-duplex operation and half-duplex operation in different ways.

[0082] Various aspects presented herein may provide different power control parameters, such as per-subband uplink power control parameters. Per-subband uplink power control parameters may provide more control and increased flexibility to reduce self-interference and protect uplink transmissions.

[0083] Fig. 7A An example communication system 700 is shown with a full-duplex base station 702 including intra-cell cross-link interference (CLI) to a first UE 704 by a second UE 706 located within the same cell coverage 710 , and inter-cell interference from another base station 708 outside of the cell coverage 710 . Figure 7B An example communication system 750 is shown illustrating inter-cell cross-link interference from a second UE 716 interfering with downlink reception for a first UE 714. The first UE 714 is in cell coverage 720 of a full-duplex base station 702, and the second UE 716 is in cell coverage 722 of a base station 718. A full-duplex UE may also cause self-interference to its own downlink reception.

[0084] In sub-band full-duplex (SBFD), a base station may configure a downlink transmission to a UE in frequency domain resources adjacent to frequency domain resources used for uplink transmission of another UE. Fig. 7A , the frequency resources used for downlink transmission to the first UE 704 may be adjacent to the frequency resources used for uplink transmission from the second UE 706. Figure 8 An example 800 of frequency resources varying over time is shown, including a first period 820 and a third period 840 for half-duplex communication, and a second period 830 for full-duplex communication. The second period 830 may include one or more SBFD symbols or D+U symbols, where UE1 (e.g., the second UE 706) transmits uplink communications to a base station (e.g., the base station 702) within a frequency band that includes frequency resources for UE2 (e.g., the first UE 704) to receive downlink transmissions from the base station (e.g., the base station 702). The uplink transmission from UE1 may interfere with the downlink reception of UE2 during the second period 830.

[0085] The base station may configure channel state information (CSI) interference measurement (IM) (CSI-IM) resources for interference measurement to achieve accurate CSI reporting for reflecting inter-cell interference. Fig. 9Two example modes of CSI-IM resources 900 are shown. A first mode (which may be referred to as mode 0) may include two adjacent resource elements in two adjacent symbols. A second mode (which may be referred to as mode 1) may include four consecutive resource elements in a single symbol. The size of the CSI-IM resource in the frequency domain may be configured based on the starting resource block and the number of resource blocks. The base station may send a CSI report configuration to the UE, which indicates a set of CSI-IM resources for the UE to use for interference measurement. The UE may then use the configured CSI-IM resources to measure interference at the UE and report such interference to the base station based on the CSI report configuration.

[0086] Fig.10 An example of an SRS resource 1000 for uplink reference signal transmission of a UE is shown. The SRS can be used by another UE to perform interference measurements. The SRS resources can be mapped to physical resources in a resource block. In time, the SRS resources can span up to four symbols and can be configured in the last six symbols of a time slot. In the frequency domain, a comb-2 or comb-4 SRS can be configured with a comb offset. The SRS resources can be configured in time and frequency. For example, the SRS resources can be periodic, aperiodic, or semi-persistent. For example, the SRS can be configured with a period and a time slot offset. The SRS can be configured for a sounding bandwidth within a bandwidth part (BWP). The SRS can be configured with a frequency hopping pattern.

[0087] For example, a comb-2 SRS may have a pattern of SRS signals on every other subcarrier over the BWP in each slot. A comb-2 SRS may span 2 slots, and the first slot and the second slot may have an alternating pattern of SRS signals. A comb-4 SRS may have a pattern of SRS signals on every 4 subcarriers over the bandwidth of each slot. Comb-2 SRS and comb-4 SRS may have a comb offset of one slot.

[0088] Fig.11 Examples 1100 and 1120 of CSI-IM resources for full-duplex resources of wireless communication are shown. Intra-cell CLI (e.g., CLI from UL transmissions of nearby users in IBFD or CLI leakage from UL transmissions to DL in SBFD mode) may limit the performance of the UE. In SBFD and / or IBFD mode, the base station may configure CSI-IM in both UL and DL (entire DL BWP) in a full-duplex time slot to enable full-duplex aware UEs and / or full-duplex UEs to measure different interference components. That is, the base station may configure CSI-IM in the entire DL BWP in a full-duplex time slot and instruct the UE to configure CSI-IM in the UL channel to measure different interference components.

[0089] In the SBFD example 1110, the CSI-IM resource 1115 includes downlink portions 1117 and 1118 that may be subject to inter-cell interference and CLI leakage, and an uplink portion 1116 that may primarily include CLI interference. The IBFD example 1120 includes a CSI-IM resource 1125 having a portion 1126 subject to CLI and a portion 1127 subject to inter-cell interference and CLI leakage. Intra-cell CLI may limit the performance of the affected UE. As shown in conjunction with Figure 4A , 4B , 4C and 7A, CLI may be caused by uplink transmission of nearby users in IBFD mode or CLI leakage to downlink reception in SBFD mode. For full-duplex communication, the base station can configure CSI-IM resources to extend in the uplink and downlink parts of the DL BWP in a full-duplex time slot. The CSI-IM resources can enable UE 2 with full-duplex awareness or full-duplex capability to measure different interference components. UE2 can measure the interference level in the configured CSI-IM resources (e.g., 1115 or 1125). UE2 can calculate the contribution of CLI based on, for example, a broadband or sub-band received signal strength indication (RSSI). For example, a graph 1130 showing CLI leakage on a frequency measured by UE2 shows that the signal power of CLI leakage is strongest near the uplink channel transmitted by UE1.

[0090] Here, UE2 may be a victim UE, and UE2 may be configured to measure CLI based on uplink reference signals (e.g., based on SRS transmission) of nearby aggressor UEs (including UE1). That is, the base station may configure the aggressor UE1 with SRS transmission in the UL portion of the DL BWP, and the base station may configure the victim UE2 with CSI-IM resources. That is, the victim UE2 may detect the SRS in the CSI-IM that overlaps with the CSI-IM resources. Accordingly, the base station may configure the CSI-IM to match the SRS allocation in the UL of the aggressor UE1. The victim UE may measure CLI (e.g., RSSI) in the configured CSI-IM resources in the uplink portion 1116 or 1126, or the downlink portion 1117, 1118, or 1127, and measure the reference signal received power (RSRP) and / or reference signal received quality (RSRQ) in the subband corresponding to the SRS transmission in the uplink portion 1116 or 1126.

[0091] Fig.12An example of CSI-IM resources 1200 for full-duplex resources for wireless communication is shown. CLI or self-interference within the UE can limit the performance of the full-duplex UE. In SBFD and / or IBFD mode, the base station can configure the full-duplex UE with CSI-IM resources for self-interference measurement. The UE can measure the interference power in the configured CSI-IM resources and calculate the broadband / sub-band self-interference, such as RSSI. The base station can also configure the full-duplex UE with SRS in the UL part and CSI-IM resources that match the SRS allocation in the SRS BW. The UE can calculate self-interference based on the SRS, such as RSSI, RSRP, RSRQ.

[0092] In the SBFD example 1210, the CSI-IM resource 1215 may include downlink portions 1217 and 1218 that may be subject to self-interference from CLI leakage, and an uplink portion 1216 that may primarily include CLI that is subject to self-interference. The IBFD example 1220 includes a CSI-IM resource 1225 having a portion 1226 of CLI that is subject to self-interference and a portion 1227 that is subject to self-interference from CLI leakage. Self-interference may limit the performance of a full-duplex UE 1. As shown in conjunction with Figure 4A , 4B , 4C and 7A, the self-interference may come from the uplink transmission of UE1 in IBFD mode, or due to CLI leakage from the uplink transmission to the downlink reception of UE 1 in SBFD mode. For full-duplex communication, the base station can configure the CSI-IM resources to extend in the uplink and downlink parts of the DL BWP in the full-duplex time slot. The CSI-IM resources can enable the full-duplex UE1 to measure different interference components. UE1 can measure the interference level in the configured CSI-IM resources (e.g., 1215 or 1225). UE1 can calculate the contribution of self-interference, for example, based on the broadband or sub-band received signal strength indication (RSSI).

[0093] Here, UE1 can be configured to measure self-interference based on the uplink reference signal of UE1 (e.g., based on SRS transmission). That is, the base station can configure the full-duplex UE1 with SRS transmission in the UL part and configure UE1 with CSI-IM resources. That is, the full-duplex UE1 can detect the SRS in the CSI-IM that overlaps with the CSI-IM resources. The base station can configure the CSI-IM to match the SRS allocation in the UL of the full-duplex UE1. Therefore, the full-duplex UE1 can measure the CLI (e.g., RSSI) in the configured CSI-IM resources in parts 1216, 1217, 1218, 1226 and 1227, and measure the RSRP and / or RSRQ in the subband corresponding to the SRS transmission in parts 1216 and 1226.

[0094] Fig.13 The configuration 1300 of CSI-IM resources for wireless communication is shown. Fig. 9 , Fig.13 The CSI-IM resource mode 0 1302 and CSI-IM mode 1 1304 correspond to Fig. 9 Mode 0 and Mode 1. The base station may configure additional modes for CSI-IM resources to achieve accurate CLI measurement and reporting based on the full-duplex mode, the allocation of reference signals sent by the UE, and / or the corresponding channels. In some aspects, the CSI-IM resource pattern may have a dense pattern spanning multiple resource elements and multiple time slots in the frequency domain, which may be used to measure interference in the UL portion of the full-duplex time slot. The density of the resource pattern may refer to the ratio of CSI-IM resources. As an example, a dense pattern may have a ratio of CSI-IM resources to non-CSI IM resources with more than six resource elements per RB. A sparse pattern may refer to a resource pattern with a lower resource ratio for CSI-IM. As an example, a sparse pattern may have a ratio of CSI-IM resources to non-CSI IM resources less than a threshold, for example, less than six resource elements per RB. In one aspect, CSI-IM resource pattern 2 1306 may have a pattern of resource elements of CSI-IM continuously allocated for one time slot by a DL BWP in the frequency domain. In another aspect, CSI-IM resource pattern 3 1308 may have a pattern of resource elements of CSI-IM that are continuously allocated through the DL BWP in the frequency domain and also span multiple symbols.

[0095] In some aspects, the CSI-IM resource pattern may match a corresponding SRS pattern, such as Fig. 9 For example, CSI-IM resource mode 4 1310 shows a comb-2 CSI-IM or a comb-4 CSI-IM. Fig. 9 The SRS pattern of the COMB-4 CSI-IM matches the CSI-IM pattern.

[0096] In some aspects, the CSI-IM resource pattern may have a more flexible frequency domain resource configuration. In one aspect, CSI-IM resource pattern 5 1312 illustrates a CSI-IM pattern with a more flexible frequency domain resource configuration for CSI-IM to achieve sparse allocation away from the UL when leakage from the CLI is reduced. That is, CSI-IM resource pattern 5 1312 may have a first set of CSI-IM resource elements allocated contiguously in the frequency domain in the UL portion of the CSI-IM resource, and a second set of CSI-IM resource elements allocated in the frequency domain in the DL portion of the CSI-IM, the second set of CSI-IM resource elements having a larger number of CSI-IM resource elements allocated in a certain number of resource elements closer to the UL portion of the CSI-IM resource. That is, the second set of CSI-IM resource elements allocated in the frequency domain in the DL portion of the CSI-IM may have a smaller number of CSI-IM resource elements allocated in a certain number of resource elements away from the UL portion of the CSI-IM resource. Since CSI leakage is strongest near the UL, the flexible frequency domain resource configuration of CSI-IM resource mode 5 1312 can save resources for PDSCH transmission.

[0097] Fig.14A An example 1400 of CLI reporting for wireless communications is shown. Fig. 14B Figure 1430 of a method of wireless communication is shown. Figure 1430 shows two aggressor UEs (UE1 and UE3) and one victim UE (UE2). The base station can configure the victim UE2 with two CSI-IM resource sets 1410 and 1420 to measure CLI leakage of UL transmissions from the aggressor UE1 and the aggressor UE3. The base station can send a reporting quantity CLI-RSSI to the victim UE2 to trigger UE2 to generate and send one or two CSI reports of the two CSI-IM resource sets 1410 and 1420. For example, the victim UE2 can measure interference in the two configured CSI-IM resources 1410 and 1420, and report one or two CLI reports to the base station, and the one or more CLI reports include RSSI values ​​measured in the two configured CSI-IM resources 1410 and 1410.

[0098] Fig.15 1500 is a call flow diagram of a method of wireless communication. The call flow diagram 1500 may include a UE 1502 and a base station 1504. The base station 1504 may configure a CSI-IM resource in a DL BWP of a full-duplex time slot, and the UE 1502 may measure an interference component in the CSI-IM resource and generate a CLI report including the measurement of the interference component and / or send the CLI report to the base station 1504.

[0099] At 1506, the base station 1504 may determine a CSI-IM resource mode. Fig.13 , the base station 1504 can configure a pattern for CSI-IM resources to enable accurate CLI measurement and reporting based on the full-duplex mode and / or the reference signal sent by the UE and / or the allocation of the corresponding channel. In one aspect, the CSI-IM resource pattern (e.g., Fig.13 In another aspect, a CSI-IM resource pattern (e.g., CSI-IM pattern 2 1306) may have a dense pattern in the frequency domain that may be used to measure interference in the UL portion of a full-duplex time slot. Fig.13 In another aspect, a CSI-IM resource pattern (e.g., Fig.13 CSI-IM mode 41310) to match the SRS mode (e.g., Fig.10 In another aspect, a CSI-IM resource pattern (e.g., CSI-IM resource pattern 5 1312) may have a flexible frequency domain resource configuration for CSI-IM to enable sparse allocation away from the UL when leakage from the CLI is reduced.

[0100] At 1508, the base station 1504 may send a configuration for one or more CSI-IM resources in the BWP to the UE 1502, and the UE 1502 may receive a configuration for one or more CSI-IM resources in the BWP from the base station 1504. The CSI-IM resource configuration may inform the UE 1502 of the CSI-IM resources that the base station 1504 may configure in the downlink BWP in full-duplex mode, and instruct the UE 1502 to measure interference components in the configured CSI-IM resources.

[0101] In one aspect, base station 1504 may configure UE 1502 to measure CLI using certain spatial reception parameters. At 1510, base station 1504 may define a TCI state to indicate a spatial receiver parameter, and the UE may be configured to measure CSI-IM resources based on the spatial receiver parameters (e.g., QCL-TypeD), and signal the TCI state to UE 1502. The UE may receive a TCI state defined to indicate a spatial receiver parameter from base station 1504, and the UE may be configured to measure CSI-IM resources based on the spatial receiver parameters. The TCI state may be signaled to UE 1502 in a manner similar to the sending of a configuration for one or more CSI-IM resources at 1508.

[0102] At 1511, the base station 1504 may configure the UE 1502 to send an UL reference signal concurrent with the CSI-IM resource in the time domain, and the UE 1502 may receive a configuration for sending an UL reference signal concurrent with the CSI-IM resource in the time domain from the base station 1504. The base station 1504 may also configure another UE (e.g., an aggressor UE) to send an UL reference signal concurrent with the CSI-IM resource in the time domain. In one aspect, the UL reference signal may be an SRS. The UE 1502 may measure at least one interference component in the CSI-IM resource based on the UL reference signal sent by the aggressor UE and / or the UE 1502 concurrently with the CSI-IM resource in the time domain.

[0103] At 1512, UE 1502 may send an uplink signal to the base station in the uplink portion of the downlink BWP based on the configuration received from the base station 1504 at 1511. UE 1502 may measure interference in the CSI-IM resources in the downlink BWP. In some aspects, the uplink signal may include a UL reference signal concurrent with the CSI-IM resources in the time domain based on the configuration received from the base station at 1511. The UE measures at least one of RSSI, RSRP, or RSRQ of interference in the CSI-IM resources in the uplink portion of the downlink BWP based on the uplink reference signal.

[0104] At 1514, UE 1502 may measure at least one interference component (e.g., RSSI) in the CSI-IM resources configured by the base station in the downlink BWP. The at least one interference component in the CSI-IM resources may be caused by interference components (e.g., RSSI, RSRP, RSRQ) in the CSI-IM resources interfering with the UL signal and / or from the reference signal (e.g., SRS) in the interfering UL signal. The interference component may include intra-cell CLI from the interfering UL signal of the aggressor UE and / or self-interference of the UL signal from UE 1502. In some aspects, the interfering UL signal from the aggressor UE and / or the UL signal of UE 1502 may be a UL reference signal sent concurrently with the CSI-IM resource in the time domain, as configured by base station 1504 at 1510.

[0105] In some aspects, the UE 1502 may measure at least one interference component in a CSI-IM resource configured by the base station in the downlink BWP. That is, the CSI-IM resource may be measured based on a spatial receiver parameter indicated by a TCI state defined by the base station 1504 at 1510. For example, the TCI state may also be configured in an aperiodic trigger state for aperiodic CLI reporting. The aperiodic trigger state may include a list of TCI states associated with a CSI-IM resource set, including multiple CSI-IM resources.

[0106] In some aspects, generating a CLI report may be triggered by a control signal for a CLI report. At 1516, the base station 1504 may send a control signal to the UE 1502 for instructing the UE to generate and send a CLI report. The UE 1502 may receive a control signal from the base station 1504 for instructing the UE to generate and send a CLI report. The control signal for the CLI report may have various formats. The control signal may include at least one of a CSI report configuration identifying a reporting amount for reporting the CLI or a separate CLI report configuration for reporting the CLI. That is, the control signal for the CLI report may be configured with a reporting amount of the CSI report configuration. The CSI report configuration may include a reporting amount, which may identify an amount to be included in the CSI report. The base station 1504 may define and configure a new reporting amount for the UE 1502 to report the CLI. The new reporting amount may be, for example, CLI-RSSI, CLI-RSRP, or CLI-RSRQ, each of which identifies an amount of RSSI, RSRP, or RSRQ measurement to be included in the CLI report. In another example, the base station 1504 may define new and separate CLI reporting configurations for reporting intra-cell CLI reports and self-interference CLI reports, and send the separate CLI reporting configurations to the UE 1502.

[0107] At 1518, the base station 1504 may send a threshold value for measurement of at least one interference component in the CSI-IM resource to the UE 1502, and the UE 1502 may receive the threshold value for measurement of at least one interference component in the CSI-IM resource from the base station 1504. The UE 1502 may generate a CLI report in response to the measurement of at least one interference component in the CSI-IM resource being above the threshold value. To reduce reporting overhead, the base station 1504 may semi-statically (e.g., via an RRC message) or dynamically send the threshold of the CLI to the UE 1502. If the measured CLI is below the threshold, the UE 1502 may discard the CLI report. In the case where the UE 1502 is configured to measure and report multiple CLI values ​​for different resources, the UE 1502 may report the measurement of the interference component (e.g., CLI-RSSI) above the threshold value.

[0108] At 1520, UE 1502 may generate a CLI report based on the interference component measured in the configured CSI-IM resource. In some aspects, UE 1502 may determine the periodicity of the CLI report based on the control signal received from base station 1504 at 1516. The time domain behavior of the CLI report may depend on the periodicity of the CSI-IM resource. That is, the periodicity of the CLI report may be configured based on whether the CSI-IM resource is configured periodically, semi-persistently, or aperiodically. For example, a periodic CSI-IM may support periodic, semi-persistent, and aperiodic CLI reports. A semi-persistent CSI-IM may support semi-persistent and aperiodic CLI reports. In addition, an aperiodic CSI-IM may support aperiodic CLI reports.

[0109] In some aspects, the period of CLI reporting may also be determined based on a control signal for CLI reporting. A control signal for CLI reporting may be sent dynamically in DCI or semi-statically in MAC-CE. A control signal sent dynamically in DCI may trigger a non-periodic CLI report or a semi-persistent CLI report, and a non-periodic CLI report and a semi-persistent CLI report activated by DCI may be sent on PUSCH. For example, a non-periodic CLI report may refer to a report that is not sent by the UE until a trigger occurs (e.g., until the base station requests or otherwise instructs the UE to send a CLI report). In contrast, a periodic CLI report may refer to a report sent periodically by the UE, for example, based on a repetitive pattern in a resource such as occurs in each time period. A semi-persistent or semi-static CLI report may refer to a report sent in a periodic manner over a duration. A reporting mode may be activated or deactivated. A control signal sent semi-statically in MAC-CE may trigger a semi-persistent CLI report, and a semi-persistent CLI report activated by MAC-CE may be sent on PUCCH.

[0110] In one aspect, UE 1502 may determine the granularity of the CLI report. The granularity of the CLI report may refer to the width of the frequency range covered by the CLI report. For example, different frequency granularities for interference reporting may be configured, such as wideband reporting and subband reporting. Subband reporting may be considered to have a higher level of granularity than wideband reporting. In another aspect, for subband reporting, UE 1502 may report the average and differential values ​​of the measured interference component (e.g., RSSI, RSRP, or RSRQ) for each subband in the subband, or report the measured interference component (e.g., RSSI, RSRP, or RSRQ) value for each subband. In another aspect, the CLI report may also be associated with multiple CSI-IM resource sets for CLI reporting from different nearby UEs.

[0111] In some aspects, CLI reports may have various timeline requirements. The control signal for CLI reporting received at 1516 may include the timeline requirements for CLI reporting. In one aspect, the timeline requirements for CLI reporting may follow the CSI reporting timeline requirements. That is, broadband CLI reporting may follow the low latency class, and subband CLI reporting may follow the high latency class. In another example, base station 1504 may define separate timeline requirements for CLI reporting. In another aspect, the timeline requirements for CLI reporting may be configured differently from the timeline requirements for CSI reporting timeline requirements. That is, the processing time required for UE 1502 to process CLI reports may be configured to be shorter than CSI reporting. For example, UE 1502 may only measure RSSI, RSRP and / or RSRQ, and the time required for UE 1502 to generate and send CLI reports may be configured to be shorter than CSI reporting.

[0112] The CLI report from UE 1502 may be sent to base station 1504 on PUSCH or PUCCH. Base station 1504 may limit the number of CLI reports sent on the payload of PUCCH to a number of bits. The size of the payload of the CLI report may be limited to a threshold size. That is, the size of the payload of the CLI report may be limited to a first number of bits. In one aspect, the CLI report may include a wideband CLI report sent on PUCCH, and the size of the CLI report may be limited to a first number of bits. In another aspect, the CLI report limited to the first number of bits may include a wideband CLI report and a maximum number of subband CLI reports. Therefore, depending on the payload size, we may send only wideband CLI on PUCCH, or report wideband CLI measurements with the maximum number of subband CLI measurements allowed within the limited number of bits allocated on PUCCH.

[0113] In some aspects, the CLI measurements to be sent on the PUSCH may be sorted by their priority. That is, the CLI measurements to be included in the CLI report may be prioritized, and the UE 1502 may sort the CLI measurements to be sent on the PUSCH to the base station 1504 based on the priority of the CLI measurements. For example, since the wideband CLI measurement has a higher priority, the wideband CLI measurement may be sent followed by the subband CLI measurement. In the case where there are multiple subband CLI measurements, the multiple subband CLI measurements may be sorted by their priority and / or value. Subband CLI measurements with low priority and / or value may be discarded based on the resources available in the PUSCH to send the generated CLI report. That is, the UE may determine that the resources available in the PUSCH may not be sufficient to send all of the generated multiple subband CLI measurements, and the UE may determine to discard at least one subband CLI measurement with low priority and / or value among the multiple subband CLI measurements.

[0114] In some aspects, two or more CLI reports may be scheduled to be sent simultaneously, and the UE may not have sufficient resources to send all reports. At 1522, the UE 1502 may discard at least one CLI report with a low priority based on the resources available in the PUSCH to send the generated CLI reports. For example, the reports may be prioritized based on their temporal behavior and content.

[0115] At 1524 , UE 1502 may send the generated CLI report to base station 1504 , and base station 1504 may receive the CLI report generated by UE 1502 .

[0116] Fig.16A and 16B 1600A and 1600B are flow charts of a method of wireless communication. The method may be performed by a UE (e.g., UE 104 / 704 / 714 / 1502; device 1802). The UE may receive a configuration of a CSI-IM resource for measuring intra-cell interference or self-interference in full-duplex communication from a base station, and generate a CLI report based on the configuration of the CSI-IM and send the CLI report to the base station.

[0117] At 1602, the UE may receive a configuration for one or more CSI-IM resources in the BWP from the base station. The CSI-IM resource configuration may inform the UE 1502 of the CSI-IM resources that the base station 1504 may configure in the downlink BWP in full-duplex mode and instruct the UE 1502 to measure interference components in the configured CSI-IM resources. Fig.15At 1508 , UE 1502 may receive, from a base station, a configuration of one or more CSI-IM resources in a BWP. In addition, 1602 may be performed by a CSI-IM resource management component 1840 .

[0118] The CSI-IM resource may have a pattern based on at least one of the allocation of the corresponding uplink channel, the full duplex mode, or the reference signal sent by the UE. The CSI-IM resource may have a pattern that matches the uplink reference signal. The CSI-IM resource may have a dense pattern across multiple resource elements in the frequency domain or across multiple symbols. The CSI-IM resource may have a flexible frequency domain resource pattern in the downlink BWP of the UE with a sparse allocation of uplink channels away from the UE or the aggressor UE.

[0119] At 1604, the UE may receive a TCI state indicating spatial receiver parameters defined by the base station. In some aspects, the base station may configure the UE to measure CLI using certain spatial receiver parameters. The UE may measure CSI-IM resources based on the spatial receiver parameters indicated by the TCI state defined by the base station and received from the base station. For example, Fig.15 At 1510 , the UE 1502 may receive a TCI state defined as indicating a spatial receiver parameter from a base station. Additionally, 1604 may be performed by a CSI-IM resource management component 1840 .

[0120] At 1606, the UE may receive a configuration from the base station for transmitting an UL reference signal concurrently with the CSI-IM resource in the time domain. The base station may also configure another UE (e.g., an aggressor UE) to transmit an UL reference signal concurrently with the CSI-IM resource in the time domain. In one aspect, the UL reference signal may be an SRS. The UE may measure at least one interference component in the CSI-IM resource based on the UL reference signal transmitted by the aggressor UE and / or the UE concurrently with the CSI-IM resource in the time domain. For example, in Fig.15 At 1511 , the UE 1502 may receive a configuration for transmitting a UL reference signal concurrent with a CSI-IM resource in the time domain. In addition, 1606 may be performed by a CSI-IM resource management component 1840 .

[0121] At 1608, the UE may send an uplink signal to the base station in an uplink portion of the downlink BWP based on the configuration received from the base station at 1606. The UE may measure interference in the CSI-IM resources in the downlink BWP. In some aspects, based on the configuration received from the base station at 1606, the uplink signal may include a UL reference signal concurrent with the CSI-IM resources in the time domain. The UE measures at least one of RSSI, RSRP, or RSRQ of interference in the CSI-IM resources in the uplink portion of the downlink BWP based on the uplink reference signal. For example, at Fig.15 At 1512, UE 1502 can send an uplink signal to the base station in the uplink portion of the downlink BWP. In addition, 1608 can be performed by CSI-IM resource management component 1840.

[0122] At 1610, the UE may measure at least one interference component in the CSI-IM resources configured by the base station in the downlink BWP. The at least one interference component in the CSI-IM resources may be caused by interference components (e.g., RSSI, RSRP, RSRQ) in the CSI-IM resources interfering with the UL signal and / or from the reference signal (e.g., SRS) in the interfering UL signal. The interference component may include intra-cell CLI from the interfering UL signal of the aggressor UE and / or self-interference of the UL signal from the UE. In one aspect, the interfering UL signal from the aggressor UE and / or the UL signal of the UE may be a UL reference signal sent concurrently with the CSI-IM resource in the time domain, as configured by the base station at 1604. For example, at Fig.15 At 1514, UE 1502 can measure at least one interference component in the CSI-IM resource configured by the base station in the downlink BWP. In addition, 1604 can be performed by the interference measurement component 1842.

[0123] As part of measuring interference, the UE may measure interference components (RSSI) in the CSI-IM resources and / or interference components (RSSI, RSRP, RSRQ) from the SRS, including intra-cell CLI from an aggressor UE interfering with the UL signal and / or self-interference from the UE's UL signal. In some aspects, the UE may measure at least one interference component in the CSI-IM resources configured by the base station in the downlink BWP. That is, the CSI-IM resources may be measured based on spatial receiver parameters indicated by the TCI state defined by the base station at 1604. For example, the TCI state may also be configured in a non-periodic trigger state for non-periodic CLI reporting. The non-periodic trigger state may include a list of TCI states associated with a CSI-IM resource set, including multiple CSI-IM resources.

[0124] At 1612, the UE may receive a control signal for reporting a CLI report. In some aspects, generating a CLI report may be triggered by a control signal for a CLI report. The control signal may instruct the UE to generate and send a CLI report. The control signal for the CLI report may have various formats. The control signal may include at least one of a CSI report configuration identifying a reporting amount for reporting the CLI or a separate CLI report configuration for reporting the CLI. That is, the control signal for the CLI report may be configured with a reporting amount for the CSI report configuration. The CSI report configuration may include a reporting amount, which may identify an amount to be included in the CSI report. The base station may define and configure a new reporting amount for the UE to report the CLI. The new reporting amount may be, for example, CLI-RSSI, CLI-RSRP, or CLI-RSRQ, each identifying an amount of RSSI, RSRP, or RSRQ measurement to be included in the CLI report. In another example, the base station may define new and separate CLI report configurations for reporting intra-cell CLI reports and self-interference CLI reports, and send separate CLI report configurations to the UE. For example, in Fig.15 At 1516 , the UE 1502 may receive a control signal from the base station 1504 for instructing the UE to generate and send a CLI report. In addition, 1612 may be performed by a CLI reporting component 1844 .

[0125] At 1614, the UE may receive a threshold value for measurement of at least one interference component in the CSI-IM resource. The UE may generate a CLI report in response to the measurement of at least one interference component in the CSI-IM resource being above the threshold value. To reduce reporting overhead, the base station may semi-statically (e.g., via an RRC message) or dynamically send a threshold for the CLI to the UE. If the measured CLI is below the threshold, the UE may discard the CLI report. In the event that the UE is configured to measure and report multiple CLI values ​​for different resources, the UE may only report measurements of interference components (e.g., CLI-RSSI) that are above the threshold value. For example, in Fig.15 At 1518 , the UE 1502 may receive a threshold value for measurement of at least one interference component in the CSI-IM resource from the base station 1504 . In addition, 1614 may be performed by a CLI reporting component 1844 .

[0126] At 1616, the UE may generate a CLI report based on the measurement of the interference component. Fig.15 At 1520 , UE 1502 can generate a CLI report based on the interference component measured in the configured CSI-IM resource. In addition, 1612 can be performed by a CLI reporting component 1844 .

[0127] In some aspects, the UE may determine the periodicity of the CLI report based on the control signal received from the base station at 1612. The time domain behavior of the CLI report may depend on the periodicity of the CSI-IM resource. That is, the periodicity of the CLI report may be configured based on whether the CSI-IM resource is configured periodically, semi-persistently, or aperiodically. For example, a periodic CSI-IM may support periodic, semi-persistent, and aperiodic CLI reports. A semi-persistent CSI-IM may support semi-persistent and aperiodic CLI reports. In addition, an aperiodic CSI-IM may support aperiodic CLI reports.

[0128] In some aspects, the period of CLI reporting may also be determined based on a control signal for CLI reporting. The control signal for CLI reporting may be sent dynamically in the DCI or semi-statically in the MAC-CE. The control signal sent dynamically in the DCI may trigger aperiodic CLI reporting or semi-persistent CLI reporting, and the aperiodic CLI reporting and semi-persistent CLI reporting activated by the DCI may be sent on the PUSCH. The control signal sent semi-statically in the MAC-CE may trigger a semi-persistent CLI reporting, and the semi-persistent CLI reporting activated by the MAC-CE may be sent on the PUCCH.

[0129] In one aspect, the UE 1502 may determine the granularity of the CLI reporting. For example, different frequency granularities for interference reporting may be configured, such as wideband reporting and subband reporting. In another aspect, for subband reporting, the UE 1502 may report an average and a difference value of a measured interference component (e.g., RSSI, RSRP, or RSRQ) for each subband in a subband, or report a measured interference component (e.g., RSSI, RSRP, or RSRQ) value for each subband. In another aspect, the CLI report may also be associated with multiple CSI-IM resource sets for CLI reporting from different nearby UEs.

[0130] In some aspects, CLI reports may have various timeline requirements. The control signal for CLI reporting received at 1516 may include the timeline requirements for CLI reporting. In one aspect, the timeline requirements for CLI reporting may follow the CSI reporting timeline requirements. That is, broadband CLI reporting may follow the low latency class, and subband CLI reporting may follow the high latency class. In another example, base station 1504 may define separate timeline requirements for CLI reporting. In another aspect, the timeline requirements for CLI reporting may be configured differently from the timeline requirements for CSI reporting timeline requirements. That is, the processing time required for UE 1502 to process CLI reports may be configured to be shorter than CSI reporting. For example, UE 1502 may only measure RSSI, RSRP and / or RSRQ, and the time required for UE 1502 to generate and send CLI reports may be configured to be shorter than CSI reporting.

[0131] The CLI report from UE 1502 may be sent to base station 1504 on PUSCH or PUCCH. Base station 1504 may limit the number of CLI reports sent on the payload of PUCCH to a number of bits. The size of the payload of the CLI report may be limited to a threshold size. That is, the size of the payload of the CLI report may be limited to a first number of bits. In one aspect, the CLI report may include a wideband CLI report sent on PUCCH, and the size of the CLI report may be limited to a first number of bits. In another aspect, the CLI report limited to the first number of bits may include a wideband CLI report and a maximum number of subband CLI reports. Therefore, depending on the payload size, we may send only wideband CLI on PUCCH, or report wideband CLI measurements with the maximum number of subband CLI measurements allowed within the limited number of bits allocated on PUCCH.

[0132] In some aspects, the CLI measurements to be sent on the PUSCH may be sorted by their priority. That is, the CLI measurements to be included in the CLI report may be prioritized, and the UE 1502 may sort the CLI measurements to be sent to the base station 1504 on the PUSCH based on the priority of the CLI measurements. For example, since the wideband CLI measurement has a higher priority, the wideband CLI measurement may be sent, followed by the subband CLI measurement. In the case where there are multiple subband CLI measurements, the multiple subband CLI measurements may be sorted by their priority and / or value. Subband CLI measurements with low priority and / or value may be discarded based on the resources available in the PUSCH to send the generated CLI report. That is, the UE may determine that the resources available in the PUSCH may not be sufficient to send all of the generated multiple subband CLI measurements, and the UE may determine to discard at least one subband CLI measurement with low priority and / or value among the multiple subband CLI measurements.

[0133] At 1618, the UE may discard at least one CLI report with a low priority based on resources available in the PUSCH for sending the generated CLI reports. In some aspects, two or more CLI reports may be scheduled to be sent simultaneously, and the UE may determine to send a CLI report with a high priority based on a determination that the available resources are insufficient to send all generated CLI reports. For example, the priority of the report may be determined based on the temporal behavior and content of the report. For example, in Fig.15 At 1522 , the UE 1502 may discard at least one CLI report having a low priority based on resources available in the PUSCH for sending the generated CLI report. Additionally, 1614 may be performed by a CLI reporting component 1844 .

[0134] At 1620, the UE may send a CLI report to the base station. That is, the UE may send the CLI report generated at 1616 and not discarded at 1618. The CLI report may be sent on the PUSCH or the PUCCH. For example, at Fig.15 At 1524, UE 1502 can send the generated CLI report to base station 1504. In addition, 1614 can be performed by CLI reporting component 1844.

[0135] Fig.17A and 17B 1700A and 1700B are flow charts of a method of wireless communication. The method may be performed by a base station (e.g., base station 102 / 180 / 702 / 712 / 1504; device 1902) in full-duplex mode. The base station may configure a UE with CSI-IM resources for measuring intra-cell interference or self-interference in full-duplex communication and receive a CLI report from the UE.

[0136] At 1702, the base station may configure CSI-IM resources in a full-duplex time slot in a downlink BWP. In some aspects, the base station may determine a CSI-IM resource mode. Referring again to Fig.13 , the base station may configure a pattern for CSI-IM resources to enable accurate CLI measurement and reporting based on full-duplex mode and / or reference signals sent by the UE and / or allocation of corresponding channels. In one aspect, the CSI-IM resource pattern (e.g., Fig.13 In another aspect, a CSI-IM resource pattern (e.g., CSI-IM pattern 2 1306) may have a dense pattern in the frequency domain that may be used to measure interference in the UL portion of a full-duplex time slot. Fig.13 In another aspect, a CSI-IM resource pattern (e.g., Fig.13 CSI-IM mode 4 1310) to match the SRS mode (e.g., Fig.10 In another aspect, a CSI-IM resource pattern (e.g., CSI-IM resource pattern 51312) may have a flexible frequency domain resource configuration for CSI-IM to enable sparse allocation away from the UL when leakage from the CLI is reduced.

[0137] In some aspects, the base station may send a configuration for one or more CSI-IM resources in the BWP to the UE 1502. The CSI-IM resource configuration may inform the UE of the CSI-IM resources that the base station may configure in the downlink BWP in full-duplex mode, and instruct the UE to measure interference components in the configured CSI-IM resources. In one aspect, the base station may configure the UE to measure CLI using certain spatial reception parameters. At 1510, the base station may define a TCI state to indicate spatial receiver parameters, and the UE may be configured to measure the CSI-IM resources based on the spatial receiver parameters (e.g., QCL-TypeD), and signal the TCI state to the UE 1502. The UE may receive a TCI state defined as indicating spatial receiver parameters from the base station 1504, and the UE may be configured to measure the CSI-IM resources based on the spatial receiver parameters. The TCI state may be signaled to the UE in a manner similar to sending the configuration for one or more CSI-IM resources at 1508. For example, at Fig.15 At 1506 and 1508, the base station 1504 can determine a CSI-IM resource mode and send a configuration for one or more CSI-IM resources in the BWP to the UE 1502. In addition, 1702 can be performed by the CSI-IM management component 1940.

[0138] At 1704, the base station may define and send a TCI state to indicate spatial receiver parameters to the UE. In some aspects, the base station may configure the UE to measure the CLI using certain spatial receiver parameters. The UE may measure the CSI-IM resources based on the spatial receiver parameters indicated by the TCI state defined by the base station and received from the base station. For example, Fig.15 At 1510 , the base station 1504 can define a TCI state to indicate a spatial receiver parameter. In addition, 1704 can be performed by a CSI-IM resource management component 1940 .

[0139] At 1706, the base station may send a configuration to the UE for sending an UL reference signal concurrent with the CSI-IM resource in the time domain. The base station may also configure another UE (e.g., an aggressor UE) to send an UL reference signal concurrent with the CSI-IM resource in the time domain. In one aspect, the UL reference signal may be an SRS. The UE may measure at least one interference component in the CSI-IM resource based on the UL reference signal sent by the aggressor UE and / or the UE concurrently with the CSI-IM resource in the time domain. For example, in Fig.15 At 1511 , the base station 1504 can configure the UE 1502 to measure the CLI using certain spatial reception parameters. In addition, 1706 can be performed by the CSI-IM resource management component 1940 .

[0140] At 1712, the base station may send a control signal to the UE to instruct the UE to generate and send a CLI report. That is, the base station may send a control signal and trigger the UE to generate a CLI report. The control signal may include at least one of a CSI report configuration identifying a reporting amount for reporting CLI or a separate CLI report configuration for reporting CLI. The control signal for CLI reporting may have various formats. The control signal may include at least one of a CSI report configuration identifying a reporting amount for reporting CLI or a separate CLI report configuration for reporting CLI. That is, the control signal for CLI reporting may be configured with a reporting amount of the CSI report configuration. The CSI report configuration may include a reporting amount, which may identify an amount to be included in the CSI report. The base station may define and configure a new reporting amount for the UE to report CLI. The new reporting amount may be, for example, CLI-RSSI, CLI-RSRP, or CLI-RSRQ, each of which identifies an amount of RSSI, RSRP, or RSRQ measurement to be included in the CLI report. In another example, the base station may define new and separate CLI reporting configurations for reporting intra-cell CLI reports and self-interference CLI reports, and send the separate CLI reporting configurations to the UE.

[0141] The base station may configure the UE to generate CLI reports periodically, semi-persistently, or aperiodically based on the period of the CSI-IM resources, and the period of the CSI-IM may be determined by the configuration of the CSI-IM resources. The control signal for CLI reporting may be sent dynamically in the DCI or semi-statically in the MAC-CE. The control signal sent dynamically in the DCI may trigger aperiodic CLI reporting or a semi-persistent CLI reporting, and the aperiodic CLI reporting and the semi-persistent CLI reporting activated by the DCI may be sent on the PUSCH. The control signal sent semi-statically in the MAC-CE may trigger a semi-persistent CLI reporting, and the semi-persistent CLI reporting activated by the MAC-CE may be sent on the PUCCH. For example, in Fig.15 At 1516, the base station 1504 can send a control signal to the UE 1502 to instruct the UE to generate and send a CLI report. In addition, 1712 can be performed by the CLI reporting component 1942.

[0142] At 1714, the base station may send a threshold value for measurement of at least one interference component in the CSI-IM resource. The UE may generate a CLI report in response to the measurement of at least one interference component in the CSI-IM resource being above the threshold value. To reduce reporting overhead, the base station may semi-statically (e.g., via an RRC message) or dynamically send a threshold for the UE to determine whether to send a CLI report. In one example, if the measured CLI is below the threshold, the UE may discard the CLI report. In another example, the UE may be configured to measure and report multiple CLI values ​​for different resources, and the UE may report measurements of interference components above the threshold value (e.g., CLI-RSSI). For example, at Fig.15 At 1518, the base station 1504 can send a threshold value for measurement of at least one interference component in the CSI-IM resource to the UE 1502. In addition, 1714 can be performed by the CLI reporting component 1942.

[0143] At 1720, the base station may receive the generated CLI report from the UE. Fig.15 At 1524, base station 1504 can receive a CLI report generated by UE 1502. In addition, 1720 can be performed by CLI reporting component 1942.

[0144] Fig.181800 is a diagram showing an example of a hardware implementation for an apparatus 1802. The apparatus 1802 is a UE and includes a cellular baseband processor 1804 (also referred to as a modem) coupled to a cellular RF transceiver 1822 and one or more subscriber identity modules (SIM) cards 1820, an application processor 1806 coupled to a secure digital (SD) card 1808 and a screen 1810, a Bluetooth module 1812, a wireless local area network (WLAN) module 1814, a global positioning system (GPS) module 1816, and a power supply 1818. The cellular baseband processor 1804 communicates with the UE 104 and / or the base station 102 / 180 through the cellular RF transceiver 1822. The cellular baseband processor 1804 may include a computer-readable medium / memory. The computer-readable medium / memory may be non-transitory. The cellular baseband processor 1804 is responsible for general processing, including executing software stored on the computer-readable medium / memory. The software, when executed by the cellular baseband processor 1804, causes the cellular baseband processor 1804 to perform the various functions described above. The computer-readable medium / memory may also be used to store data that is manipulated by the cellular baseband processor 1804 when executing the software. The cellular baseband processor 1804 also includes a receiving component 1830, a communication manager 1832, and a transmitting component 1834. The communication manager 1832 includes one or more of the components shown. The components within the communication manager 1832 may be stored in a computer-readable medium / memory and / or configured as hardware within the cellular baseband processor 1804. The cellular baseband processor 1804 may be a component of the UE 350 and may include a memory 360 and / or at least one of a TX processor 368, an RX processor 356, and a controller / processor 359. In one configuration, the device 1802 may be a modem chip and include only the baseband processor 1804, and in another configuration, the device 1802 may be the entire UE (e.g., see Figure 3 350) and includes additional modules of device 1802.

[0145] The communication manager 1832 includes a CSI-IM resource management component 1840 configured to receive a configuration for one or more CSI-IM resources in a BWP, receive a TCI state indicating a spatial receiver parameter defined by a base station, receive a configuration for sending a UL reference signal concurrent with the CSI-IM resource in the time domain, and send an uplink signal to the base station in an uplink portion of the downlink BWP, e.g., as described in conjunction with 1602, 1604, 1606, and 1608. The communication manager 1832 also includes an interference measurement component 1842 configured to measure at least one interference component in the CSI-IM resource configured by the base station in the downlink BWP, e.g., as described in conjunction with 1610. The communication manager 1832 also includes a CLI reporting component 1844, which is configured to: receive a control signal for reporting a CLI report, receive a threshold value for measurement of at least one interference component in a CSI-IM resource, generate a CLI report based on the measurement of the interference component, discard at least one CLI report with a low priority based on resources in the PUSCH available for sending the generated CLI report, and send the CLI report to the base station, for example, as described in combination with 1612, 1614, 1616, 1618 and 1620.

[0146] The apparatus may include executing Fig.15 , 16A and 16B. Each of the blocks in the algorithm of the flowchart may be an additional component. Thus, the components may be executed Fig.15 , 16A 16B, and the apparatus may include one or more of those components. The components may be one or more hardware components specifically configured to perform the process / algorithm, implemented by a processor configured to perform the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0147] In one configuration, the apparatus 1802 (specifically, the cellular baseband processor 1804) includes: a unit for receiving a configuration of one or more CSI-IM resources in a BWP from a base station; a unit for measuring at least one interference component in the CSI-IM resources configured by the base station in the downlink BWP; a unit for generating a CLI report including the measurement of the at least one interference component; and a unit for sending the generated CLI report to the base station. The apparatus 1802 includes: a unit for sending an uplink signal to the base station in the uplink portion of the downlink BWP; a unit for receiving a control signal for reporting CLI from the base station; a unit for receiving a threshold value for the measurement of at least one interference component in the CSI-IM resources; and a unit for discarding at least one CLI report with a low priority based on the resources in the PUSCH available for sending the generated CLI report. The unit may be one or more of the components of the apparatus 1802 configured to perform the functions recited by the unit. As described above, the apparatus 1802 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, the described means may be the TX processor 368, the RX processor 356, and the controller / processor 359 configured to perform the functions recited by the above described means.

[0148] Fig.19 1900 is a diagram showing an example of a hardware implementation for an apparatus 1902. The apparatus 1902 is a base station and includes a baseband unit 1904. The baseband unit 1904 can communicate with the UE 104 via a cellular RF transceiver 1922. The baseband unit 1904 may include a computer-readable medium / memory. The baseband unit 1904 is responsible for general processing, including executing software stored on the computer-readable medium / memory. The software, when executed by the baseband unit 1904, causes the baseband unit 1904 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the baseband unit 1904 when executing the software. The baseband unit 1904 also includes a receiving component 1930, a communication manager 1932, and a sending component 1934. The communication manager 1932 includes one or more components shown. The components within the communication manager 1932 may be stored in a computer-readable medium / memory and / or configured as hardware within the baseband unit 1904. The baseband unit 1904 may be a component of the base station 310 and may include the memory 376 and / or at least one of the TX processor 316 , the RX processor 370 , and the controller / processor 375 .

[0149] The communication manager 1932 includes a CSI-IM resource management component 1940, which is configured to: configure CSI-IM in a full-duplex time slot in a downlink BWP, define and send TCI states to indicate spatial receiver parameters to the UE, and send a configuration for sending a UL reference signal concurrent with the CSI-IM resource in the time domain, for example, as described in conjunction with 1702, 1704, and 1706. The communication manager 1932 also includes a CLI reporting component 1942, which is configured to: send a control signal to instruct the UE to generate and send a CLI report, send a threshold value for measurement of at least one interference component in the CSI-IM resource, and receive the generated CLI report from the UE, for example, as described in conjunction with 1712, 1714, and 1720.

[0150] The apparatus may include executing Fig.15 , 17A and 17B. Each of the blocks in the algorithm of the flowchart may be an additional component. Thus, the components may be executed Fig.15 , 17A 17B, ​​and the apparatus may include one or more of those components. The components may be one or more hardware components specifically configured to perform the process / algorithm, implemented by a processor configured to perform the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0151] In one configuration, the device 1902 (specifically, the baseband unit 1904) includes a unit for configuring CSI-IM resources in a full-duplex time slot in a downlink BWP; and a unit for receiving a CLI report from a first UE, the CLI report including at least one component of interference, the at least one component of interference including a measurement of interference in the CSI-IM resource based on an uplink signal sent to a base station. The device 1902 includes: a unit for determining a CSI-IM resource mode based on at least one of a corresponding uplink channel, a full-duplex mode, or an allocation of a reference signal sent by the UE; a unit for sending a control signal to the UE to instruct the UE to generate and send a CLI report, the control signal including at least one of a CSI report configuration identifying a reporting amount for reporting CLI or a separate CLI report configuration for reporting CLI; and a unit for configuring the UE to generate CLI reports periodically, semi-persistently, or aperiodically based on a period of the CSI-IM resource. The apparatus 1902 includes: a unit for sending a threshold value to indicate that the UE generates a CLI report in response to a measurement of at least one interference component in the CSI-IM resource being above the threshold value; and a unit for defining a TCI state to indicate a spatial receiver parameter, the UE being configured to measure the CSI-IM resource based on the spatial receiver parameter. The unit may be one or more components of the components of the apparatus 1902 configured to perform the functions recited by the unit. As described above, the apparatus 1902 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Therefore, in one configuration, the unit may be a TX processor 316, an RX processor 370, and a controller / processor 375 configured to perform the functions recited by the unit.

[0152] The method and apparatus for wireless communication may be configured to report intra-cell CLI and self-interference in full-duplex communication. The base station may configure CSI-IM resources in the DL BWP of the full-duplex time slot. The UE may measure the interference component in the CSI-IM resource and generate and / or send a CLI report including the measurement of the interference component to the base station. The measurement of the interference component may include an RSSI measurement of the intra-cell CLI from the interfering uplink signal sent from the aggressor UE or an RSSI measurement of the self-interference of the uplink channel from the UE. The uplink signal may be an SRS, and the CLI report may include the RSSI, RSRP and / or RSRQ of the interference in the CSI-IM resource in the uplink channel. The CSI-IM resource and CLI report may have various configurations.

[0153] It should be understood that the specific order or hierarchy of blocks in the disclosed process / flowchart is an illustration of an exemplary method. It should be understood that the specific order or hierarchy of blocks in the process / flowchart can be rearranged based on design preferences. In addition, some blocks can be merged or omitted. The attached method claims provide the elements of each block in a sample order and are not meant to be limited to the specific order or hierarchy provided.

[0154] The foregoing description is provided so that any person skilled in the art can implement 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 can be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but to conform to the full range consistent with the content expressed by the claims, wherein, unless explicitly stated as such, reference to the singular element is not intended to mean "one and only one", but "one or more". Terms such as "if", "when ..." and "while ..." should be interpreted as "under the condition of ...", rather than implying an immediate time relationship or reaction. That is, these phrases (e.g., "when ...") do not mean immediate action in response to the occurrence of an action or during the occurrence of an action, but only mean that the action will occur if the condition is met, but do not require a specific or immediate time constraint for the occurrence of the action. The word "exemplary" used herein means "as an example, instance or illustration". Any aspect described as "exemplary" herein need not be interpreted as being preferred to or having advantages over other aspects. Unless otherwise explicitly stated, the term "some" refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” may be only A, only B, only C, A and B, A and C, B and C, or A and B and C, where any such combination may include one or more members of A, B, or C. All structural and functional equivalents to the elements of the various aspects described throughout the disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recorded in the claims. The words "module," "mechanism," "element," "device," and the like may not be substitutes for the word "unit." Likewise, no claim element is to be interpreted as a functional unit unless the element is explicitly recorded using the phrase "unit for..."

[0155] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0156] Aspect 1 is a method for wireless communication of a UE in full-duplex mode, comprising: receiving a configuration for one or more CSI-IM resources in a BWP from a base station; measuring at least one interference component of the CSI-IM resources in the downlink BWP; generating a CLI report including a measurement of the at least one interference component; and sending the CLI report to the base station.

[0157] Aspect 2 is a method according to aspect 1, wherein the measurement of the at least one interference component includes measurement of interference in the CSI-IM resource in the downlink BWP, wherein the interference is generated by an interfering uplink signal sent from an aggressor UE via an interfering uplink channel.

[0158] Aspect 3 is a method according to aspect 2, wherein the measurement of the interference includes: measuring the RSSI of the interference in the CSI-IM resource in the downlink BWP.

[0159] Aspect 4 is a method according to any one of Aspects 2 and 3, wherein the interfering uplink signal includes an interfering uplink reference signal sent from the aggressor UE, and the interfering uplink reference signal is configured to be concurrent with the CSI-IM in the time domain.

[0160] Aspect 5 is a method according to aspect 4, wherein measuring the interference includes: measuring at least one of RSSI, RSRP or RSRQ of the interference in the CSI-IM resource overlapping with the interfering uplink channel from the aggressor UE.

[0161] Aspect 6 is a method according to any one of Aspects 1 to 5, further comprising: sending an uplink signal to the base station in the uplink part of the downlink BWP, wherein the measurement of the at least one interference component comprises: measuring the RSSI of the interference in the CSI-IM resource in the downlink BWP.

[0162] Aspect 7 is a method according to Aspect 6, wherein the uplink signal includes an uplink reference signal, the uplink reference signal of the UE is configured to be concurrent with the CSI-IM resource of the downlink channel of the base station in the time domain, and the measurement of the at least one interference component includes: based on the uplink reference signal, measuring at least one of the RSSI, RSRP or RSRQ of the interference in the CSI-IM resource in the uplink part of the downlink BWP.

[0163] Aspect 8 is a method according to any one of aspects 1 to 7, wherein the CSI-IM resource has a pattern based on at least one of the following: a corresponding uplink channel, a full-duplex mode, or an allocation of a reference signal sent by the UE.

[0164] Aspect 9 is a method according to aspect 8, wherein the CSI-IM resource has a pattern matching an uplink reference signal.

[0165] Aspect 10 is the method according to aspect 8, wherein the CSI-IM resource has a dense pattern spanning multiple resource elements in the frequency domain or spanning multiple symbols.

[0166] Aspect 11 is a method according to aspect 8, wherein the CSI-IM resource has a flexible frequency domain resource pattern in the downlink BWP of the UE, and the flexible frequency domain resource pattern has a sparse allocation away from the uplink channel of the UE or the aggressor UE.

[0167] Aspect 12 is a method according to any one of Aspects 1 to 11, further comprising: receiving a control signal for reporting the CLI from the base station, the control signal including at least one of the following items, and the CLI report is generated based on the control signal received from the base station: a CSI reporting configuration identifying a reporting amount for reporting the CLI, or a separate CLI reporting configuration for reporting the CLI.

[0168] Aspect 13 is a method according to Aspect 12, wherein the CLI report is generated periodically, semi-persistently or aperiodically based on periodic CSI-IM, the CLI report is generated semi-persistently or aperiodically based on semi-persistent CSI-IM, and the CLI report is generated aperiodically based on aperiodic CSI-IM.

[0169] Aspect 14 is a method according to Aspect 13, wherein the control signal received in the DCI triggers the transmission of one of the non-periodic CLI report or the semi-persistent CLI report on the PUSCH, and the control signal received in the MAC-CE triggers the transmission of the semi-persistent CLI report on the PUCCH.

[0170] Aspect 15 is a method according to any one of aspects 1 to 14, wherein the CLI report has different frequency granularities for reporting wideband or one or more sub-band measurements.

[0171] Aspect 16 is a method according to aspect 15, wherein the CLI report includes an average value of the measured interference in the CSI-IM resource and a delta value for each of the subbands.

[0172] Aspect 17 is a method according to aspect 15, wherein the CLI report includes a measurement value of the at least one interference component in the CSI-IM resource for each of the subbands.

[0173] Aspect 18 is a method according to any one of Aspects 1 to 17, further comprising: receiving a threshold value for measurement of the at least one interference component in the CSI-IM resource, and the CLI report is generated in response to the measurement of the at least one interference component in the CSI-IM resource being higher than the threshold value.

[0174] Aspect 19 is a method according to Aspect 18, wherein the measurement of the CSI-IM resource includes an RSSI, RSRP or RSRQ measurement of the CSI-IM resource, and wherein the UE is configured to generate or report the CLI report in response to the RSSI, RSRP or RSRQ measurement of the CSI-IM resource being higher than a threshold RSSI, RSRP or RSRQ value.

[0175] Aspect 20 is a method according to any one of aspects 1 to 19, wherein the CSI-IM resource is measured based on a spatial receiver parameter indicated by a TCI state defined by the base station.

[0176] Aspect 21 is a method according to any one of Aspects 1 to 20, wherein the CLI report includes at least one of the following items: a broadband CLI report that complies with the low-latency class time requirements of the CSI report, or a subband CLI report that complies with the high-latency class time requirements of the CSI report.

[0177] Aspect 22 is a method according to any one of aspects 1 to 21, wherein the timeline requirement of the CLI report is configured differently from the timeline requirement of the CSI report.

[0178] Aspect 23 is a method according to any one of Aspects 1 to 22, wherein the CLI report including a wideband CLI report is limited to a first number of bits, and the CLI report limited to the first number of bits may also include a maximum number of subband CLI reports.

[0179] Aspect 24 is a method according to any one of Aspects 1 to 23, wherein the order of the CLI reports sent on the PUSCH is based on the priority of the CLI reports, and the priority of the CLI reports is determined based on the time domain behavior and content of each CLI report in the CLI reports.

[0180] Aspect 25 is a method according to aspect 24, further comprising: discarding the CLI report with a low priority based on resources available in the PUSCH for sending the generated CLI report.

[0181] Aspect 26 is a method according to any one of Aspects 1 to 25, wherein the CLI report includes two or more CLI reports scheduled to be sent concurrently, and the method further includes: discarding at least one CLI report with a lower priority based on the resources in the PUSCH available for sending the generated CLI report, and the priority of the CLI report is determined based on the time domain behavior and content of each CLI report in the CLI report.

[0182] Aspect 27 is an apparatus for wireless communication, comprising at least one processor coupled to a memory and configured to implement the method as in any one of aspects 1 to 26.

[0183] Aspect 28 is an apparatus for wireless communication, comprising means for implementing the method in any one of aspects 1 to 26.

[0184] Aspect 29 is a computer-readable medium storing computer executable codes, wherein when the codes are executed by a processor, the processor implements the method as in any one of aspects 1 to 26.

[0185] Aspect 30 is a method for wireless communication at a base station in full-duplex mode, the method comprising: configuring CSI-IM resources in a full-duplex time slot in a downlink BWP; and receiving a CLI report from a first UE, the CLI report comprising at least one interference component, the at least one interference component comprising a measurement of interference in the CSI-IM resource based on an uplink signal sent to the base station.

[0186] Aspect 31 is a method according to aspect 30, wherein the measurement of the interference in the CSI-IM resource comprises a measurement of the RSSI of the interference in the CSI-IM resource in the downlink BWP.

[0187] Aspect 32 is a method according to any one of Aspects 30 and 31, wherein the measurement of the uplink signal sent to the base station includes at least one of the following items: an interfering uplink signal sent from the second UE via an interfering uplink channel in the downlink BWP, or an uplink signal sent from the first UE via an uplink channel in the downlink BWP.

[0188] Aspect 33 is a method according to aspect 32, wherein the configuring of the CSI-IM resources includes: configuring at least one of the first UE or the second UE to send an uplink reference signal concurrent with the CSI-IM in the time domain.

[0189] Aspect 34 is a method according to aspect 33, wherein the measurement of the interference in the CSI-IM resource includes measurement of at least one of RSSI, RSRP or RSRQ of the interference in the CSI-IM resource overlapping with the uplink reference signal sent to the base station.

[0190] Aspect 35 is a method according to any one of Aspects 30 to 34, further comprising: determining a CSI-IM resource mode based on at least one of a corresponding uplink channel, a full-duplex mode, or an allocation of a reference signal sent by the UE, wherein the CSI-IM resource is configured based on the determined CSI-IM resource mode.

[0191] Aspect 36 is a method according to aspect 35, wherein the CSI-IM resource has a pattern matching an uplink reference signal.

[0192] Aspect 37 is a method according to any one of aspects 35 and 36, wherein the CSI-IM resource has a dense pattern spanning multiple resource elements in the frequency domain or spanning multiple symbols.

[0193] Aspect 38 is a method according to any one of Aspects 35 to 37, wherein the CSI-IM resource has a flexible frequency domain resource pattern in the downlink BWP of the UE, and the flexible frequency domain resource pattern has a sparse allocation away from the uplink channel of the UE or the aggressor UE.

[0194] Aspect 39 is a method according to any one of Aspects 30 to 38, further comprising: sending a control signal to the UE for instructing the UE to generate and send the CLI report, the control signal including at least one of the following items: a CSI reporting configuration identifying a reporting amount for reporting the CLI, or a separate CLI reporting configuration for reporting the CLI.

[0195] Aspect 40 is a method according to aspect 39, further comprising: configuring the UE to generate the CLI report periodically, semi-persistently or aperiodically based on the period of the CSI-IM resource, wherein the period of the CSI-IM is determined by the configuration of the CSI-IM resource.

[0196] Aspect 41 is a method according to aspect 40, wherein the control signal is sent to the UE in a DCI, and the CLI report is received on one of the aperiodic CLI report or the semi-persistent CLI report on a PUSCH.

[0197] Aspect 42 is a method according to any one of aspects 40 and 41, wherein the control signal is sent to the UE in a MAC-CE and the CLI report is received on the semi-persistent CLI report on a PUCCH.

[0198] Aspect 43 is a method according to any one of aspects 30 to 42, wherein the CLI report has different frequency granularities for reporting wideband or one or more sub-band measurements.

[0199] Aspect 44 is a method according to aspect 43, wherein the CLI report includes an average value of the measured interference in the CSI-IM resource and a delta value for each of the subbands.

[0200] Aspect 45 is a method according to any one of aspects 43 and 44, wherein the CLI report includes a measurement value of the at least one interference component in the CSI-IM resource for each of the subbands.

[0201] Aspect 46 is a method according to any one of aspects 30 to 45, further comprising: sending a threshold value to instruct the UE to generate the CLI report in response to the measurement of the at least one interference component in the CSI-IM resource being higher than the threshold value.

[0202] Aspect 47 is a method according to any one of aspects 30 to 46, further comprising: defining a TCI state to indicate a spatial receiver parameter, and the UE is configured to measure the CSI-IM resource based on the spatial receiver parameter.

[0203] Aspect 48 is a method according to any one of Aspects 30 to 47, wherein the CLI report includes at least one of the following: a broadband CLI report that complies with the low-latency class time requirements of the CSI report, or a subband CLI report that complies with the high-latency class time requirements of the CSI report.

[0204] Aspect 49 is a method according to any one of aspects 30 to 48, wherein the timeline requirement of the CLI report is configured differently from the timeline requirement of the CSI report.

[0205] Aspect 50 is an apparatus for wireless communication, comprising at least one processor coupled to the memory and configured to implement the method as in any one of aspects 30 to 49.

[0206] Aspect 51 is an apparatus for wireless communication, comprising means for implementing the method as in any one of aspects 30 to 49.

[0207] Aspect 52 is a computer-readable medium storing computer executable code, wherein the code, when executed by a processor, causes the processor to implement the method as in any one of aspects 30 to 49.

Claims

1. An apparatus for wireless communication of a user equipment (UE) in full-duplex mode, comprising: Memory; as well as at least one processor coupled to the memory, the at least one processor configured to: receiving, from a network, a configuration for one or more channel state information (CSI) interference measurement (IM) (CSI-IM) resources in a downlink bandwidth part (BWP), wherein the one or more CSI-IM resources include a first mode associated with a half-duplex mode and a second mode associated with a full-duplex mode; measuring at least one interference component of the one or more CSI-IM resources in the downlink BWP, wherein the at least one interference component comprises interference associated with an intra-cell interfering uplink signal; and A cross-link interference (CLI) report is sent to the network, wherein the CLI report is based on the measurement of the at least one interference component.

2. The device according to claim 1, wherein: The configuration includes: Information indicating the at least one interference component of the one or more CSI-IM resources in the downlink BWP.

3. The device according to claim 2, wherein: The intra-cell interference uplink signal includes an interference uplink reference signal transmitted from an aggressor UE, and the intra-cell interference uplink reference signal is configured to be concurrent with the CSI-IM in the time domain.

4. The device according to claim 1, wherein: The at least one processor is further configured to: An uplink signal concurrent in the time domain with the one or more CSI-IM resources of the downlink channel is sent to the network in an uplink portion of the downlink BWP, wherein the measurement of the at least one interference component includes self-interference associated with the uplink signal.

5. The device according to claim 1, wherein: The one or more CSI-IM resources have a pattern based on: a corresponding uplink channel.

6. The device according to claim 1, wherein: The one or more CSI-IM resources have a pattern matching an uplink reference signal.

7. The device according to claim 1, wherein: The one or more CSI-IM resources have a dense pattern spanning multiple resource elements in the frequency domain or across multiple symbols.

8. The device according to claim 1, wherein: The one or more CSI-IM resources have a flexible frequency domain resource pattern in a downlink BWP of the UE, the flexible frequency domain resource pattern having a sparse allocation away from an uplink channel of the UE or an aggressor UE.

9. The device according to claim 1, wherein: The at least one processor is further configured to: receiving a control signal from the network, the control signal comprising at least one of: a CSI reporting configuration identifying a reporting amount for reporting the CLI, or a separate CLI reporting configuration for reporting the CLI, and Wherein, the CLI report is based on the control signal received from the network.

10. The device according to claim 9, wherein: The at least one processor is configured to: sending the CLI report periodically, semi-persistently or aperiodically based on a periodic CSI-IM, sending the CLI report semi-persistently or aperiodically based on the semi-persistent CSI-IM, or The CLI report is sent aperiodically based on the aperiodic CSI-IM.

11. The device according to claim 10, wherein: The control signal is configured to trigger transmission of one of the aperiodic CLI report or the semi-persistent CLI report on a physical uplink shared channel (PUSCH), or wherein the control signal is configured to trigger transmission of the semi-persistent CLI report on a physical uplink control channel (PUCCH).

12. The device according to claim 1, wherein: The CLI report has different frequency granularity for reporting wideband or one or more sub-band measurements.

13. The device according to claim 12, wherein: The CLI report includes an average value of the measured interference in the CSI-IM resource and a delta value for each of the subbands.

14. The device according to claim 12, wherein: The CLI report includes a measurement value of the at least one interference component in the CSI-IM resource for each of the subbands.

15. The device according to claim 1, wherein: The at least one processor is further configured to: receiving a threshold value for measurement of the at least one interference component in the one or more CSI-IM resources, and The CLI report is generated in response to the measurement of the at least one interference component in the one or more CSI-IM resources being higher than the threshold value.

16. The device according to claim 1, wherein The one or more CSI-IM resources are measured based on spatial receiver parameters indicated by a transmission configuration indicator (TCI) state defined by the network.

17. The device according to claim 1, wherein: The CLI report includes at least one of the following: a wideband CLI report that complies with a low-latency class time requirement for CSI reporting, or a subband CLI report that complies with a high-latency class time requirement for CSI reporting.

18. The device according to claim 1, wherein: The first timeline of the CLI report is configured differently than the second timeline of the CSI report.

19. The device according to claim 1, wherein: An order of one or more CLI reports sent on a physical uplink shared channel (PUSCH) is based on respective priorities of the one or more CLI reports, and the respective priorities of the one or more CLI reports are determined based on respective time domain behavior and respective content of each CLI report in the one or more CLI reports.

20. The device according to claim 19, wherein The at least one processor is further configured to discard the one or more CLI reports having a low priority based on resources available in the PUSCH for sending the one or more CLI reports.

21. The device according to claim 1, wherein The CLI report is scheduled to be sent concurrently with a second CLI report, and the at least one processor is further configured to discard at least one CLI report with a lower priority among the CLI report and the second CLI report based on resources available in a physical uplink shared channel (PUSCH) for sending the CLI report and the second CLI report, wherein the respective priorities of the CLI report and the second CLI report are determined based on respective time domain behaviors and respective contents of each CLI report among the CLI report and the second CLI report.

22. The apparatus according to claim 1, further comprising: A transceiver is coupled to the at least one processor.

23. The device according to claim 1, wherein The one or more CSI-IM resources span the entire downlink BWP.

24. The device according to claim 1, wherein: The one or more CSI-IM resources have different densities in a downlink portion and an uplink portion in the downlink BWP.

25. The device according to claim 1, wherein The one or more CSI-IM resources have a higher density in an uplink portion in the downlink BWP than in a downlink portion in the downlink BWP.

26. A method of wireless communication at a user equipment (UE) in full-duplex mode, comprising: receiving, from a network, a configuration for one or more channel state information (CSI) interference measurement (IM) (CSI-IM) resources in a downlink bandwidth part (BWP), wherein the one or more CSI-IM resources include a first mode associated with a half-duplex mode and a second mode associated with a full-duplex mode; measuring at least one interference component of the one or more CSI-IM resources in the downlink BWP, wherein the at least one interference component comprises interference associated with an intra-cell interfering uplink signal; and A cross-link interference (CLI) report is sent to the network, wherein the CLI report is based on the measurement of the at least one interference component.

27. The method according to claim 26, wherein: The configuration includes: Information indicating the at least one interference component of the one or more CSI-IM resources in the downlink BWP.

28. The method of claim 26, further comprising: An uplink signal concurrent in the time domain with the one or more CSI-IM resources of the downlink channel is sent to the network in an uplink portion of the downlink BWP, wherein the measurement of the at least one interference component includes self-interference associated with the uplink signal.

29. The method according to claim 26, wherein: The one or more CSI-IM resources have a pattern based on: a corresponding uplink channel.

30. The method of claim 26, further comprising: receiving a control signal from the network, the control signal comprising at least one of: a CSI reporting configuration identifying a reporting amount for reporting the CLI, or a separate CLI reporting configuration for reporting the CLI, and Wherein, the CLI report is based on the control signal received from the network.

31. The method of claim 26, further comprising: receiving a threshold value for the measurement of the at least one interference component in the one or more CSI-IM resources, The CLI report is generated in response to the measurement of the at least one interference component in the one or more CSI-IM resources being higher than the threshold value.

32. The method of claim 26, wherein: The intra-cell interference uplink signal includes an interference uplink reference signal transmitted from an aggressor UE, and the intra-cell interference uplink reference signal is configured to be concurrent with the CSI-IM in the time domain.

33. The method of claim 26, wherein: The one or more CSI-IM resources have a flexible frequency domain resource pattern in a downlink BWP of the UE, the flexible frequency domain resource pattern having a sparse allocation away from an uplink channel of the UE or an aggressor UE.

34. An apparatus for wireless communication at a user equipment (UE), comprising: means for receiving, from a network, a configuration for one or more channel state information (CSI) interference measurement (IM) (CSI-IM) resources in a downlink bandwidth part (BWP), wherein the one or more CSI-IM resources include a first mode associated with a half-duplex mode and a second mode associated with a full-duplex mode; means for measuring at least one interference component of the one or more CSI-IM resources in the downlink BWP, wherein the at least one interference component comprises interference associated with an intra-cell interfering uplink signal; and Means for sending a cross-link interference (CLI) report to the network, wherein the CLI report is based on the measurement of the at least one interference component.

35. A computer readable medium storing computer executable code, which when executed by a processor causes an apparatus to: receiving, from a network, a configuration for one or more channel state information (CSI) interference measurement (IM) (CSI-IM) resources in a downlink bandwidth part (BWP), wherein: The one or more CSI-IM resources include a first mode associated with a half-duplex mode and a second mode associated with a full-duplex mode; measuring at least one interference component of the one or more CSI-IM resources in the downlink BWP, wherein the at least one interference component comprises interference associated with an intra-cell interfering uplink signal; and A cross-link interference (CLI) report is sent to the network, wherein the CLI report is based on the measurement of the at least one interference component.

Images