Facilitates the duplex mode of each uplink control channel resource

Abstract

Disclosed herein are apparatus, methods, and computer-readable media for facilitating a duplex mode for each uplink control channel resource. An example method for wireless communication at a user equipment includes: receiving a physical uplink control channel (PUCCH) resource configuration from a base station, the PUCCH resource configuration indicating an uplink beam for transmitting an uplink transmission. The example method also includes: identifying a downlink beam paired with the uplink beam for transmitting the uplink transmission, the paired downlink beam being used for full-duplex reception of a downlink transmission from the base station that overlaps in time with a transmission of the uplink transmission. Additionally, the example method includes: performing full-duplex communication with the base station by transmitting the uplink transmission using the uplink beam while receiving the downlink transmission using the paired downlink beam.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Patent Application No. 17 / 112,897, filed on December 4, 2020, entitled “METHODS AND APPARATUS TO FACILITATE DUPLEX MODE PER UPLINK CONTROL CHANNEL RESOURCE,” which is expressly incorporated herein by reference in its entirety.

[0003] background Technical Field

[0005] The present disclosure relates generally to communication systems and, more particularly, to wireless communications including full-duplex communications.

[0006] introduction

[0007] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication 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.

[0008] These multiple access technologies have been adopted in various telecommunication standards to provide common protocols that enable different wireless devices to communicate at city, country, region, and even global levels. An example telecommunication standard is 5G New Radio (NR). 5G NR is a part of the continuous mobile broadband evolution promulgated 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. 5GNR includes services associated with enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable low latency communication (URLLC). Some aspects of 5G NR can be based on 4G Long Term Evolution (LTE) standards. There is a need for further improvements to 5G NR technology. These improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies.

[0009] Overview

[0010] A brief summary of one or more aspects is given below to provide a basic understanding of such aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be presented later.

[0011] In one aspect of the present disclosure, a method, computer-readable medium, and apparatus for wireless communication of a user equipment (UE) are provided. An example apparatus receives a physical uplink control channel (PUCCH) resource configuration from a base station. The PUCCH resource configuration indicates an uplink beam for transmitting an uplink transmission. The example apparatus also identifies a downlink beam paired with the uplink beam for transmitting the uplink transmission, the paired downlink beam being used for full-duplex reception of a downlink transmission from the base station that overlaps in time with the transmission of the uplink transmission. Additionally, the example apparatus performs full-duplex communication with the base station by transmitting an uplink transmission using the uplink beam while receiving a downlink transmission using the paired downlink beam.

[0012] In another aspect of the present disclosure, a method, computer-readable medium, and apparatus for wireless communication of a base station are provided. An example apparatus transmits a PUCCH resource configuration to a UE. The PUCCH resource configuration may indicate an uplink beam for receiving an uplink transmission. The example apparatus also determines a downlink beam paired with the uplink beam for receiving the uplink transmission, the paired downlink beam being used for full-duplex transmission of a downlink transmission to the UE that overlaps in time with the reception of the uplink transmission. Additionally, the example apparatus performs full-duplex communication with the UE by transmitting a downlink transmission using the paired downlink beam while receiving an uplink transmission using the uplink beam.

[0013] To achieve the foregoing and related ends, the 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 the one or more aspects. However, these features are merely indicative of several of the various ways in which the principles of the various aspects may be employed, and this description is intended to cover all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0016] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0017] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

[0018] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0019] Figure 2D is a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0020] Figure 3 is a diagram illustrating an example of a base station and a UE in an access network.

[0021] Figure 4A is a diagram illustrating a first example of full-duplex wireless communication according to various aspects of the present disclosure.

[0022] Figure 4B is a diagram illustrating a second example of full-duplex wireless communication according to various aspects of the present disclosure.

[0023] Figure 4C is a diagram illustrating a third example of full-duplex wireless communication according to various aspects of the present disclosure.

[0024] Figure 5 Examples of in-band full-duplex (IBFD) resources and sub-band frequency division duplex (FDD) resources for full-duplex communications in accordance with various aspects of the present disclosure are illustrated.

[0025] Figure 6 Example PUCCH resource configurations including a PUCCH resource index and an uplink beam identifier in accordance with various aspects of the present disclosure are illustrated.

[0026] Fig. 7A An example of a UE receiving a PUCCH resource configuration and a DCI scheduling uplink transmission and downlink transmission for full-duplex communication according to various aspects of the present disclosure is illustrated.

[0027] Figure 7B An example of a UE receiving a PUCCH resource configuration, a first DCI scheduling an uplink transmission, and a second DCI scheduling a downlink transmission for full-duplex communication in accordance with various aspects of the present disclosure is illustrated.

[0028] Fig. 8A Example PUCCH resource configurations including a PUCCH resource index and a bidirectional transmission configuration indication (TCI) status field are illustrated in accordance with various aspects of the present disclosure.

[0029] Figure 8BAn example PUCCH resource configuration including a PUCCH resource index, an uplink TCI status field, and a downlink TCI status field in accordance with various aspects of the present disclosure is illustrated.

[0030] Fig. 9A An example of a UE receiving scheduling information scheduling a semi-persistently scheduled (SPS) transmission and subsequently receiving scheduling information scheduling a PUCCH transmission that overlaps at least one of the SPS transmissions is illustrated in accordance with various aspects of the present disclosure.

[0031] Fig. 9B

[0013] An example of a UE scheduled to have an ongoing PUCCH transmission and subsequently receiving scheduling information scheduling reception of one or more downlink transmissions that overlap at least one of the ongoing PUCCH transmissions in accordance with various aspects of the present disclosure is illustrated.

[0032] Fig.10 is an example communication flow between a base station and a UE according to the teachings disclosed herein.

[0033] Fig.11 is a flow chart of a method of wireless communication at a UE according to the teachings disclosed herein.

[0034] Fig.12 is a diagram illustrating an example of a hardware implementation for an example device according to the teachings disclosed herein.

[0035] Fig.13 is a flow chart of a method of wireless communication at a base station according to the teachings disclosed herein.

[0036] Fig.14 is a diagram illustrating an example of a hardware implementation for an example device according to the teachings disclosed herein.

[0037] Detailed Description

[0038] 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 configurations in which the concepts described herein may be practiced. This detailed description includes specific details to provide 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 block diagram form in order to avoid diluting such concepts.

[0039] 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 following detailed description 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.

[0040] As an example, an element, or any part of an element, or any combination of elements may 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, gating logic, discrete hardware circuits, and other suitable hardware configured to perform various functionalities described throughout this disclosure. One or more processors in a processing system may execute software. 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, executables, threads of execution, procedures, functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description languages, or other terms.

[0041] Accordingly, in one or more example aspects, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, each function may 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 may be any available medium that can be accessed by a computer. As an example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of computer-readable media of the above types, or any other medium that can be used to store computer-accessible instructions or data structure forms of computer executable code.

[0042] The UE and / or base station may communicate in full-duplex mode, in which uplink communications and downlink communications are exchanged in the same frequency band at overlapping times. The UE and / or base station may exchange communications using one or more directional beams. For example, the UE may be configured (e.g., via a configuration received from a base station) to transmit an uplink control channel (e.g., a physical uplink control channel (PUCCH)) using an uplink beam. Since the base station determines when to transmit a downlink transmission to the UE, the base station may determine when full-duplex communication will occur. In some such instances, the base station may configure the UE to receive a downlink transmission using a downlink beam paired with an uplink beam to facilitate full-duplex communication.

[0043] Aspects disclosed herein can configure a UE to perform full-duplex communication with a base station based on an indication of an uplink beam and a paired downlink beam. For example, the UE may receive an uplink control channel resource configuration indicating an uplink beam for transmitting an uplink control channel. The UE may identify a paired downlink beam for full-duplex reception of a downlink transmission from a base station that overlaps in time with the transmission of the uplink control channel.

[0044] In a first aspect, a UE may receive downlink control information (DCI) scheduling transmission of an uplink control channel and reception of a downlink transmission from a base station. The DCI may indicate a downlink beam paired with an uplink beam used to transmit an uplink control channel through an uplink control channel resource configuration.

[0045] In a second aspect, an uplink control channel resource configuration may include an indication of a downlink beam paired with an uplink beam used to transmit an uplink control channel. For example, the uplink control channel resource configuration may include a transmission configuration indicator (TCI) status field, and the UE may identify the downlink beam paired with the uplink beam based on the TCI status field. In some examples, the TCI status field may include a bidirectional TCI status field indicating an uplink beam used to transmit an uplink control channel and a downlink beam paired with the uplink beam used to transmit the uplink control channel. In some examples, the TCI status field may include an uplink TCI status field indicating an uplink beam used to transmit an uplink control channel and a downlink TCI status field indicating a downlink beam paired with an uplink beam used to transmit an uplink control channel.

[0046] In a third aspect, the UE may identify a downlink beam paired with an uplink beam for transmitting an uplink control channel based on a reference signal (RS) configuration, a measurement, or a synchronization signal block (SSB). In some examples, the UE may identify a downlink beam paired with an uplink beam for transmitting an uplink control channel based on a beam failure detection (BFD) RS configuration and / or a radio link measurement (RLM) RS configuration. In some examples, the UE may identify a downlink beam paired with an uplink beam for transmitting an uplink control channel based on performing a self-interference measurement (SIM) measurement and / or one or more beam management (BM) measurements. In some examples, the UE may identify a downlink beam paired with an uplink beam for transmitting an uplink control channel based on a downlink SSB that overlaps with a random access channel (RACH) opportunity.

[0047] Figure 1 is a diagram illustrating an example of a wireless communication system and access network 100 including base stations 102 and / or 180 and UE 104.

[0048] In some examples, a wireless communication device (such as UE 104) can be configured to manage one or more aspects of wireless communication by facilitating full-duplex communication based on an uplink beam for transmitting an uplink control channel and identifying a downlink beam for full-duplex reception of a downlink transmission that overlaps in time with the transmission of the uplink control channel. As an example, in Figure 1 In the example, the UE 104 may include a paired downlink beam identification component 198 configured to receive a PUCCH resource configuration from a base station. The PUCCH resource configuration indicates an uplink beam for transmitting an uplink transmission. The example paired downlink beam identification component 198 may also be configured to: identify a downlink beam paired with an uplink beam for transmitting an uplink transmission, the paired downlink beam being used for full-duplex reception of a downlink transmission from the base station that overlaps in time with the transmission of the uplink transmission. The example paired downlink beam identification component 198 may also be configured to: perform full-duplex communication with the base station by transmitting an uplink transmission using the uplink beam while receiving a downlink transmission using the paired downlink beam.

[0049] Still refer to Figure 1 In some examples, base station 102 / 180 may be configured to manage one or more aspects of wireless communication by facilitating full-duplex communication based on an uplink beam for receiving an uplink control channel and determining a downlink beam for full-duplex transmission of a downlink transmission that overlaps in time with reception of the uplink control channel. As an example, in Figure 1In the example, the base station 102 / 180 may include a paired downlink beam determination component 199 configured to transmit a PUCCH resource configuration to the UE. The PUCCH resource configuration may indicate an uplink beam for receiving an uplink transmission. The example paired downlink beam determination component 199 may also be configured to determine a downlink beam paired with an uplink beam for receiving an uplink transmission, the paired downlink being used for full-duplex transmission of a downlink transmission to the UE that overlaps in time with the reception of the uplink transmission. The example paired downlink beam determination component 199 may also be configured to perform full-duplex communication with the UE by transmitting a downlink transmission using the paired downlink beam while receiving an uplink transmission using the uplink beam.

[0050] Although the following description provides examples for 5G NR, the concepts described herein may be applicable to other similar areas where UEs and / or base stations may be capable of full-duplex communications, such as LTE, LTE-A, CDMA, GSM, and / or other wireless technologies.

[0051] 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.

[0052] 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 interface with 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 interface with the core network 190 via a second backhaul link 184. Among other functions, the base station 102 can also perform one or more of the following functions: delivery of user data, radio 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), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of alert 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.

[0053] Base stations 102 may communicate wirelessly with UEs 104. Each base station 102 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 120 between a base station 102 and a UE 104 may 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 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. These communication links may be over one or more carriers. For each carrier allocated in a carrier aggregation of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use a spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.) bandwidth. These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to 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).

[0054] 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 a variety of 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.

[0055] The wireless communication system may further include a Wi-Fi access point (AP) 150 in communication with a Wi-Fi station (STA) 152 via a communication link 154, e.g., in a 5 GHz unlicensed spectrum, etc. When communicating in an unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether the channel is available.

[0056] The small cell 102' may operate in a licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102' may employ NR and use the same unlicensed spectrum (e.g., 5 GHz, etc.) as used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may boost the coverage of the access network and / or increase the capacity of the access network.

[0057] The electromagnetic spectrum is typically subdivided into various classes, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (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 typically (interchangeably) referred to as the “millimeter wave” band in various documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0058] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this article, the term "sub-6 GHz" and the like can broadly represent frequencies 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 used in this article, the term "millimeter wave" and the like can broadly represent frequencies that can include mid-band frequencies, can be within FR2, or can be within the EHF band.

[0059] Whether a small cell 102' or a large cell (e.g., a macro base station), the base station 102 may include and / or be referred to as an eNB, a gB node (gNB), or another type of base station. Some base stations (such as gNB 180) may operate in the traditional sub-6 GHz spectrum, in millimeter wave frequencies, and / or near millimeter wave frequencies to communicate with UE 104. When gNB 180 operates in millimeter wave frequencies or near millimeter wave frequencies, gNB 180 may be referred to as a millimeter wave base station. Millimeter wave base station 180 may utilize beamforming 182 with UE 104 to compensate for path loss and short range. Base station 180 and UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate beamforming.

[0060] The base station 180 may transmit beamformed signals to the UE 104 in one or more transmit directions 182'. The UE 104 may receive beamformed signals from the base station 180 in one or more receive directions 182". The UE 104 may also transmit beamformed signals to the base station 180 in one or more transmit directions. The base station 180 may receive beamformed signals from the UE 104 in one or more receive directions. The base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of the base station 180 / UE 104. The transmit direction and receive direction of the base station 180 may be the same or may be different. The transmit direction and receive direction of the UE 104 may be the same or may be different.

[0061] 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 be in communication 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. In general, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are delivered through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. 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 provisioning 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 distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting a specific service, and may be responsible for session management (start / stop) and for collecting eMBMS related charging information.

[0062] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may be in communication with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. In general, the AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are delivered through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. 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) streaming (PSS) service, and / or other IP services.

[0063] A base station may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), or some other suitable 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 device, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a health care device, an implant, a sensor / actuator, a display, or any other similar functional device. Some UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0064] Figure 2A 200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B is a diagram 230 illustrating an example of DL channels within a 5G NR subframe. Figure 2C 250 is a diagram illustrating an example of a second subframe within a 5G NR frame structure. Figure 2D 280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure can be frequency division duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within the subcarrier set are dedicated to DL or UL; or can be time division duplex (TDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within the subcarrier set are dedicated to both DL and UL. Figure 2A , 2CIn the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (mostly DL) and subframe 3 is configured with slot format 1 (all UL), where D is DL, U is UL, and F is for flexible use between DL / UL. Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe may 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 mixture of DL, UL, and flexible symbols. The UE is configured with a slot format (dynamically configured by DL control information (DCI) or semi-statically / statically configured by radio resource control (RRC) signaling) through the received slot format indicator (SFI). Note that the following description also applies to the 5G NR frame structure for TDD.

[0065] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include mini-slots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power-limited scenarios; limited to single stream transmission). The number of time slots within a subframe is based on the time slot configuration and parameter design. For slot configuration 0, different parameter designs μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For slot configuration 1, different parameter designs 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter design μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration vary depending on parameter design. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter design 0 to 4. Thus, parameter design μ=0 has a subcarrier spacing of 15kHz, while parameter design μ=4 has a subcarrier spacing of 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 2A to FIG. 2DAn example of slot configuration 0 with 14 symbols per slot and parameter design μ=2 with 4 slots per subframe is provided. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is about 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 may have a specific parameter design.

[0066] A resource grid may be used to represent the frame structure. Each slot includes a resource block (RB) (also called a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a number of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0067] like Figure 2A As illustrated in FIG, some REs carry reference (pilot) signals (RS) for UEs. RSs may include demodulation RSs (DM-RSs) (indicated as R for one particular configuration, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RSs) for channel estimation at the UE. RSs may also include beam measurement RSs (BRSs), beam refinement RSs (BRRSs), and phase tracking RSs (PT-RSs).

[0068] Figure 2BExamples of various DL channels within a subframe of a frame are illustrated. 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 comprising 6 RE groups (REGs), each REG comprising 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 higher 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 aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also referred to as 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 not transmitted via the PBCH (such as a system information block (SIB)), and paging messages.

[0069] As in Figure 2C As explained in , some REs carry DM-RSs for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). The UE may transmit DM-RSs for the physical uplink control channel (PUCCH) and DM-RSs for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first or first two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether a short PUCCH or a long PUCCH is transmitted and depending on the specific PUCCH format used. The UE may transmit a sounding reference signal (SRS). The SRS may be transmitted in the last symbol of the subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the comb teeth. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0070] Figure 2DExamples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) information (ACK / negative ACK (NACK)) feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0071] Figure 3 3 is a block diagram of a base station 310 in communication with a UE 350 in an access network. 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 functionality. 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 media access control (MAC) layer. The controller / processor 375 provides RRC layer functionality 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 of UE measurement reports; PDCP layer functionality associated with header compression / decompression, security (ciphering, cipher decryption, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery 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 functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0072] The transmit (TX) processor (e.g., TX processor 316) and receive (RX) processor (e.g., RX processor 370) implement layer 1 functionality associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping onto the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles 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-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and / or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce 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 transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding individual spatial stream for transmission.

[0073] At the UE 350, each receiver 354RX receives a signal through its respective antenna 352. Each receiver 354RX recovers information modulated onto an RF carrier and provides the information to an RX processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for the UE 350. If there are multiple spatial streams destined for the UE 350, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then transforms the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbol on each subcarrier and the reference signal are recovered and demodulated by determining the signal constellation point most likely to be transmitted by the base station 310. These soft decisions can be based on the channel estimate calculated by the channel estimator 358. These soft decisions are then decoded and deinterleaved to recover the data and control signals originally transmitted on the physical channel by the base station 310. These data and control signals are then provided to the controller / processor 359 which implements layer 3 and layer 2 functionality.

[0074] 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 channels and logical channels, packet reassembly, cipher interpretation, 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 ACK and / or NACK protocols to support HARQ operations.

[0075] Similar to the functionality described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression, and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing MAC SDUs onto TBs, demultiplexing MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0076] Channel estimates derived by the channel estimator 358 from a reference signal or feedback transmitted by the base station 310 may be used by the TX processor 368 to select the appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to a different antenna 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a corresponding individual spatial stream for transmission.

[0077] 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.

[0078] 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 channels and logical channels, packet reassembly, cipher decoding, 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.

[0079] 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 The paired downlink beam identification component 198 combines various aspects.

[0080] 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 The paired downlink beam determination component 199 combines various aspects.

[0081] Wireless communication systems may 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. Full-duplex operation (wherein wireless devices exchange uplink and downlink communications that overlap in time) can achieve more efficient use of wireless spectrum. Full-duplex operation may include simultaneous transmission and reception in the same frequency range, partially overlapping frequency ranges, or separate frequency ranges. In some examples, the frequency range may be a mmW frequency range, such as frequency range 2 (FR2). In some examples, the frequency range may be a sub-6 GHz frequency range, such as frequency range 1 (FR1). The various aspects given herein may also be applied to other frequency ranges. Full-duplex capability may be supported at a base station and / or UE. For example, a UE may transmit uplink communications from one antenna panel and may receive downlink communications from another antenna panel. In an additional or alternative example, a base station may transmit to a first UE using a first antenna panel and may receive from a second UE using a second antenna panel. For another example, a base station may transmit to a UE using a first antenna panel and may receive from the same UE using a second antenna panel. In some examples, full-duplex communication may be conditioned on beam or spatial separation or other conditions.

[0082] Full-duplex communication can reduce latency. For example, full-duplex operation can enable a UE to receive a downlink signal in an uplink-only timeslot, which can reduce latency for downlink communications. Full-duplex communication can improve spectral efficiency, such as per cell or per UE. Full-duplex communication can achieve more efficient use of wireless resources.

[0083] Figure 4A , 4B 4C explain various modes of full-duplex communication. Full-duplex communication supports the transmission and reception of information in the same frequency band, partially overlapping frequency bands, or separate frequency bands in a time-overlapping manner. In this way, the spectrum efficiency can be improved relative to the spectrum efficiency of half-duplex communication, which supports the transmission or reception of information in one direction at a time without overlapping uplink and downlink communications. Due to the simultaneous Tx / Rx nature of full-duplex communication, 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 devices, such as transmission 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.

[0084] Figure 4A A first example of full-duplex communication 400 is shown, wherein a first base station 402a is in full-duplex communication with a first UE 404a and a second UE 406a. The first base station 402a is a full-duplex base station, while the first UE 404a and the second UE 406a may be configured as half-duplex UEs or full-duplex UEs. The second UE 406a may transmit a first uplink signal 430a to the first base station 402a and other base stations (such as a second base station 408a adjacent to the second UE 406a). The first base station 402a transmits a downlink signal 432a to the first UE 404a concurrently with receiving the uplink signal 430a from the second UE 406a. The first base station 402a may experience self-interference originating from the receiving antenna receiving the uplink signal 430a from the second UE 406a that receives some downlink signals 432a transmitted to the first UE 404a. The first base station 402a may experience additional interference due to the signal from the second base station 408a. 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.

[0085] Figure 4BA second example of full-duplex communication 410 is shown, wherein the first base station 402b and the first UE 404b are in full-duplex communication. In this example, the first base station 402b is a full-duplex base station, and the first UE 404b is a full-duplex UE. The first base station 402b and the first UE 404b can concurrently receive and transmit communications overlapping in time in the same frequency band. The first base station 402b and the first UE 404b can each experience self-interference, wherein the signal transmitted from the corresponding device is leaked to the receiver of the same device. The first UE 404b can experience additional interference based on one or more signals transmitted from the second UE 406b and / or the second base station 408b adjacent to the first UE 404b.

[0086] Figure 4C A third example of full-duplex communication 420 is shown, where a first UE 404c is a full-duplex UE in communication 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 transmission reception points (multi-TRPs) for uplink and downlink communications with the first UE 404c. The second base station 408c can be in communication with a second UE 406c. Figure 4C , the first UE 404c may concurrently transmit an uplink signal 430c to the first base station 402c while receiving a downlink signal 432c from the second base station 408c. The first UE 404c may experience self-interference due to the simultaneous communication of the first signal and the second signal, e.g., the uplink signal 430c may leak to (e.g., be received by) a receive antenna of the first UE 404c. The first UE 404c may experience additional interference from the second UE 406c.

[0087] Full-duplex communications may be in the same frequency band. Uplink and downlink communications may be in different frequency sub-bands, in the same frequency sub-band, or in partially overlapping frequency sub-bands. Figure 5 A first example 500 and a second example 510 of an in-band full-duplex (IBFD) resource and a third example 520 of a sub-band full-duplex resource are illustrated. Uplink communications may be communicated using uplink resources, and downlink communications may be communicated using downlink resources. In IBFD, signals may be transmitted and received in overlapping times and overlapping frequencies. As shown in the first example 500, the time and frequency allocation of UL resources 502 may completely overlap with the time and frequency allocation of DL resources 504. In the second example 510, the time and frequency allocation of UL resources 512 may partially overlap with the time and frequency allocation of DL resources 514.

[0088] IBFD is in contrast to sub-band frequency division duplex (FDD), in which uplink and downlink resources can overlap in time using different frequencies, as shown in the third example 520. In the third example 520, UL resources 522 are separated from DL resources 524 by a guard band 526. The guard band 526 can be a frequency resource provided between the UL resources 522 and the DL resources 524, or a gap in the frequency resource. Using a guard band to separate the UL frequency resources from the DL frequency resources can help reduce self-interference. UL resources and DL resources that are immediately adjacent to each other correspond to a guard band width of 0. Since the output signal (e.g., from the UE transmitter) can extend beyond the UL resource, the guard band can reduce the interference experienced by the UE. Sub-band FDD can also be referred to as "flexible duplexing".

[0089] In some examples, the UE may be configured with uplink control channel resources (e.g., PUCCH resources) for transmitting uplink control information. For example, the base station may transmit a physical uplink control channel resource configuration (e.g., PUCCH-Config parameter) that is received by the UE and configures the PUCCH resources. PUCCH resources may be used to convey uplink control information such as HARQ feedback, scheduling requests, link recovery requests, and / or periodic and semi-periodic CSI reports.

[0090] A PUCCH resource may be associated with a PUCCH resource index (e.g., a PUCCH-ResourceID parameter), an index of the first PRB before frequency hopping or for no frequency hopping (e.g., a startingPRB parameter), an index of the first PRB after frequency hopping (e.g., a secondHopPRB parameter), an indication of intra-slot frequency hopping (e.g., an intraSlotFrequencyHopping parameter), an index of the first interlace (e.g., an interlace0 parameter), an index of the second interlace (e.g., an interlace1 parameter), an index of an RB set (e.g., an rb-SetIndex parameter), and / or a configuration of a PUCCH format (e.g., a format parameter). The PUCCH resource configuration may also associate the PUCCH resource with a spatial setting (e.g., a PUCCH-SpatialRelationInfo parameter). For example, the PUCCH resource configuration may indicate an uplink beam used to transmit uplink control information.

[0091] Figure 6An example PUCCH resource configuration 600 including a PUCCH resource index 602 and an uplink beam identifier 604 is depicted, as presented herein. The example PUCCH resource index 602 (e.g., a PUCCH-ResourceID parameter) identifies a PUCCH resource. The example uplink beam identifier 604 (e.g., a PUCCH-SpatialRelationInfo parameter) identifies a spatial arrangement of beams associated with the PUCCH resource (e.g., an uplink beam for transmitting uplink control information). A base station (such as a Figure 1 The base station 102 / 180) can send a signal to the UE (such as Figure 1 UE 104) transmits a PUCCH resource configuration 600. Although the example PUCCH resource configuration 600 includes a PUCCH resource index 602 and an uplink beam identifier 604, other examples may include additional or alternative parameters.

[0092] When half-duplex communication is adopted, a wireless device (such as a UE) transmits or receives in one direction at a time without overlapping uplink and downlink communications in a frequency range. For example, in order to transmit uplink control information, the UE may receive a PUCCH resource configuration, which configures the PUCCH resources and indicates an associated uplink beam for transmitting the uplink control information. Additionally or alternatively, in order to receive downlink communication, the UE may receive a downlink transmission resource configuration, which configures the downlink resources and indicates an associated downlink beam for receiving downlink communication. In such instances, uplink communication and downlink communication do not overlap in time, and thus, an uplink beam for transmitting uplink control information and a downlink beam for receiving downlink communication can be independently configured. That is, since the transmission or reception of information is performed in one direction at a time in half-duplex communication, the beam selected for uplink communication and the beam selected for downlink communication may be related or may not be related. For example, the uplink beam and the downlink beam may be the same beam or may be different beams.

[0093] However, when performing full-duplex communication, the UE exchanges uplink and downlink communications that overlap in time. In such instances, the uplink beam used to transmit uplink communication and the downlink beam used to transmit downlink communication may not be the same beam. On the contrary, when full-duplex communication is adopted, the uplink beam and the downlink beam can be paired. The beam pair can be based at least in part on the interference that the uplink transmission on the uplink beam may cause to the downlink reception on the downlink beam. The beam pair can be selected based on signal strength and self-interference, for example, the SINR beam pair with the highest signal strength and low self-interference among the beam pair candidates. In contrast, the half-duplex beam can be selected based on the highest signal strength or RSRP in the candidate beam set, for example, without considering potential self-interference. When scheduling the UE to transmit uplink control information, the base station can transmit a PUCCH resource configuration, which schedules the UE to use the uplink beam to transmit the uplink control information at a time (e.g., time slot X). The base station may also indicate to the UE that the UE will receive a downlink transmission from the base station at the indicated time (e.g., at time slot X). To perform full-duplex communication, the UE may identify a downlink beam for full-duplex reception of downlink transmissions. The downlink beam may be paired with an uplink beam for transmitting uplink control information.

[0094] In a first aspect, a UE may receive downlink control information (DCI) from a base station that schedules transmission of uplink control information and reception of downlink transmissions (eg, CORESET). Fig. 7A An example 700 of a UE 702 receiving a PUCCH resource configuration 704 and a DCI 706 is illustrated. Aspects of the PUCCH resource configuration 704 may be similar to Figure 6 704. For example, the PUCCH resource configuration 704 may include a PUCCH resource index 704a identifying a PUCCH resource and an uplink beam identifier 704b identifying an uplink beam associated with the PUCCH resource for transmitting uplink control information. The UE 702 may receive the PUCCH resource configuration 704 via RRC signaling. The UE 702 may transmit uplink control information using an uplink beam identified by the uplink beam identifier 704b.

[0095] To perform full-duplex communication, the base station may transmit DCI 706 that is received by the UE 702. The DCI 706 may schedule full-duplex communication by scheduling uplink transmissions of uplink control information at times that overlap in time with the reception of downlink transmissions by the UE 702 (e.g., time slot X), such as in conjunction with FIG. 4A to FIG. 5 As described. Fig. 7AAs shown in , DCI 706 may include a downlink beam identifier 706a indicating a downlink beam for full-duplex reception of downlink transmissions. The indicated downlink beam may be paired with an uplink beam (e.g., an uplink beam indicated by uplink beam identifier 704b) for transmitting uplink control information.

[0096] exist Fig. 7A In the illustrated example of , a single DCI (e.g., DCI 706) schedules uplink transmissions and downlink transmissions. In some examples, different DCIs may schedule uplink transmissions and downlink transmissions. For example, Figure 7B An example 750 is illustrated in which a UE 752 receives a PUCCH resource configuration 754, a first DCI 756, and a second DCI 758. Aspects of the PUCCH resource configuration 754 may be similar to Figure 6 754. For example, the PUCCH resource configuration 754 may include a PUCCH resource index 754a identifying a PUCCH resource and an uplink beam identifier 754b identifying an uplink beam associated with the PUCCH resource for transmitting uplink control information. The UE 752 may receive the PUCCH resource configuration 754 via RRC signaling. The UE 752 may transmit uplink control information using an uplink beam identified by the uplink beam identifier 754b.

[0097] In order to Figure 7B In the illustrated example of performing full-duplex communication, the base station may transmit a first DCI 756 and a second DCI 758 that are received by the UE 752. The first DCI 756 may schedule a first transmission in a first direction at a time, and the second DCI 758 may schedule a second transmission in a second direction at a time that overlaps with the first transmission. For example, the first DCI 756 may schedule an uplink transmission of uplink control information at a time (e.g., time slot X). The second DCI 758 may schedule full-duplex reception of a downlink transmission from the base station that overlaps in time with the transmission of the uplink control information (e.g., at time slot X). Figure 7B As shown in , the second DCI 758 may include a downlink beam identifier 758a indicating a downlink beam for full-duplex reception of downlink transmissions. The indicated downlink beam may be paired with an uplink beam (e.g., an uplink beam indicated by an uplink beam identifier 754b) for transmitting uplink control information.

[0098] In a second aspect, to facilitate identification of a downlink beam paired with an uplink beam for transmitting an uplink control channel, the PUCCH resource configuration may include an indication of a downlink beam paired with an uplink beam for transmitting uplink control information. For example, the PUCCH resource configuration may include a TCI status field, and the UE may identify the downlink beam paired with the uplink beam based on the TCI status field.

[0099] Fig. 8A and 8B An example of a PUCCH resource configuration including a PUCCH resource index and a TCI status field identifying a paired downlink beam is illustrated. Fig. 8A An example PUCCH resource configuration 800 is illustrated, as presented herein, including a PUCCH resource index 802a and a bidirectional TCI status field 804. The example PUCCH resource index 802a identifies a PUCCH resource. The example bidirectional TCI status field 804 includes an uplink beam identifier 806a that identifies an uplink beam associated with the PUCCH resource (e.g., an uplink beam used to transmit uplink control information associated with the PUCCH resource). Fig. 8A The example bidirectional TCI status field 804 also includes a downlink beam identifier 808a that identifies a downlink beam for full-duplex reception of downlink transmissions. The identified downlink beam can be paired with an uplink beam for transmitting uplink control information.

[0100] Base stations (such as Figure 1 The base station 102 / 180) can send a signal to the UE (such as Figure 1 The UE 104 transmits a PUCCH resource configuration 800. Although the example PUCCH resource configuration 800 includes a PUCCH resource index 802a and a bidirectional TCI status field 804, other examples may include additional or alternative parameters.

[0101] In some examples, the PUCCH resource configuration may include two unidirectional TCI status fields. For example, Figure 8B An example PUCCH resource configuration 820 including a PUCCH resource index 802b, an uplink TCI status field 822, and a downlink TCI status field 824 is illustrated, as presented herein. Aspects of the PUCCH resource index 802b may be similar to Figure 6 PUCCH resource index 602 and / or Fig. 8AThe example uplink TCI status field 822 includes an uplink beam identifier 806b that identifies an uplink beam associated with a PUCCH resource (e.g., an uplink beam used to transmit uplink control information associated with the PUCCH resource identified by the PUCCH resource index 802b). The example downlink TCI status field 824 includes a downlink beam identifier 808b that identifies a downlink beam used for full-duplex reception of downlink transmissions. The identified downlink beam may be paired with an uplink beam used to transmit uplink control information.

[0102] Base stations (such as Figure 1 The base station 102 / 180) can send a signal to the UE (such as Figure 1 The UE 104 transmits a PUCCH resource configuration 820. Although the example PUCCH resource configuration 820 includes a PUCCH resource index 802b, an uplink TCI status field 822, and a downlink TCI status field 824, other examples may include additional or alternative parameters.

[0103] exist Fig. 8A and 8B In the illustrated example of , the UE may identify the downlink beam paired with the uplink beam used to transmit the uplink control information based on the downlink beam identifiers 808a, 808b included in the corresponding PUCCH resource configurations 800, 820. The PUCCH resource configuration indicating the uplink beam used to transmit the uplink control information and the downlink beam paired with the uplink beam (e.g., Fig. 8A and 8B ) as shown in the example above may be beneficial for reducing overhead signaling.

[0104] In some examples, the UE may perform communications in a first direction and receive scheduling information (e.g., DCI) scheduling the occurrence of communications in a second direction that overlap with communications in the first direction. In some such examples, the UE may switch to a downlink beam indicated by a downlink beam identifier 808a, 808b of a corresponding PUCCH resource configuration 800, 820 to receive downlink transmissions that overlap in time.

[0105] Fig. 9AAn example 900 of a UE 902 receiving scheduling information for scheduling a semi-persistently scheduled (SPS) transmission and subsequently receiving scheduling information for scheduling a PUCCH transmission that overlaps at least one of the SPS transmissions is illustrated, as presented herein. For example, the UE 902 may receive a PUCCH resource configuration 904 that includes an identifier identifying an uplink beam 906 for transmitting an uplink control channel and an identifier identifying a downlink beam 908 paired with the uplink beam 906. In some examples, aspects of the PUCCH resource configuration 904 may be similar to Fig. 8A 8, including a PUCCH resource index 802a and a bidirectional TCI status field 804 indicating an uplink beam 906 and a paired downlink beam 908. In some examples, aspects of the PUCCH resource configuration 904 may be similar to Figure 8B The PUCCH resource configuration 820 includes a PUCCH resource index 802b, an uplink TCI status field indicating an uplink beam 906, and a downlink TCI status field 824 indicating a downlink beam 908 paired with the uplink beam 906.

[0106] like Fig. 9A As shown in , UE 902 may receive SPS signaling 910 that schedules SPS downlink transmissions. For example, SPS signaling 910 may schedule a first SPS downlink transmission 912a at a first time (T1), may schedule a second SPS downlink transmission 912b at a second time (T2), may schedule a third SPS downlink transmission 912c at a third time (T3), and may schedule a fourth SPS downlink transmission 912d at a fourth time (T4). In the illustrated example, SPS signaling 910 includes an identifier that identifies an SPS downlink beam 920 for receiving SPS downlink transmissions 912a, 912b, 912c, 912d. For example, at a first time (T1), UE 902 may use SPS downlink beam 920 to receive the first SPS downlink transmission 912a. In Fig. 9A In example 900, SPS downlink beam 920 and downlink beam 908 are different beams. However, it can be appreciated that in other examples, SPS downlink beam 920 and downlink beam 908 can be the same beam.

[0107] like Fig. 9A As shown in , after receiving SPS signaling 910, UE 902 may receive DCI 914. DCI 914 may schedule one or more PUCCH transmissions based on PUCCH resource configuration 904. Fig. 9AIn example 900, DCI 914 schedules a first PUCCH transmission 916a at a second time (T2) and a second PUCCH transmission 916b at a third time (T3).

[0108] exist Fig. 9A In the illustrated example 900, the UE 902 is scheduled to perform full-duplex communication at a second time (T2) and a third time (T3). For example, at the second time (T2), the UE 902 is scheduled to transmit a first PUCCH transmission 916a and receive a second SPS downlink transmission 912b. In some examples where the occurrence of a PUCCH transmission is scheduled to overlap in time with an SPS downlink transmission (e.g., at the second time (T2) and the third time (T3)), the UE 902 may switch the beam used to receive the SPS downlink transmission from the SPS downlink beam 920 to the downlink beam 908 identified by the PUCCH resource configuration 904. For example, at the second time (T2), the UE 902 may use the uplink beam 906 to transmit the first PUCCH transmission 916a and may use the downlink beam 908 to receive the second SPS downlink transmission 912b in full duplex. In a similar manner, at a third time (T3), the UE 902 may use uplink beam 906 to transmit a second PUCCH transmission 916b and may use downlink beam 908 to full-duplex receive a third SPS downlink transmission 912c.

[0109] like Fig. 9A As shown in , UE 902 may use SPS downlink beam 920 to receive fourth SPS downlink transmission 912d. For example, at a fourth time (T4), UE 902 is not scheduled to perform full-duplex communication, and thus, UE 902 may switch the beam used to receive fourth SPS downlink transmission 912d from downlink beam 908 indicated by PUCCH resource configuration 904 back to (or reset) the SPS downlink beam 920 indicated by SPS signaling 910. That is, at Fig. 9A In example 900 of FIG. 1 , UE 902 may use a downlink beam 908 indicated by PUCCH resource configuration 904 for occurrences of SPS downlink transmissions that overlap in time with PUCCH transmissions (e.g., at a second time (T2) and a third time (T3)). In such examples, UE 902 may use an SPS downlink beam 920 indicated by SPS signaling 910 for occurrences of SPS downlink transmissions that do not overlap in time with PUCCH transmissions (e.g., at a first time (T1) and a fourth time (T4)).

[0110] However, it can be appreciated that in other examples, after an occurrence of a communication that overlaps in time is scheduled (e.g., via DCI 914), the UE 902 may continue to receive SPS downlink transmissions using the downlink beam 908 indicated by the PUCCH resource configuration 904, even when the SPS downlink transmissions do not overlap with the PUCCH transmissions. For example, in such examples, the UE 902 may receive a first SPS downlink transmission 912a at a first time (T1) using the SPS downlink beam 920, and may receive a second SPS downlink transmission 912b at a second time (T2), a third SPS downlink transmission 912c at a third time (T3), and a fourth SPS downlink transmission 912d at a fourth time (T4) using the downlink beam 908.

[0111] Fig. 9B An example 950 of a UE 952 scheduled to have an ongoing PUCCH transmission and subsequently receiving scheduling information for reception of one or more downlink transmissions that overlap at least one of the ongoing PUCCH transmissions is illustrated, as presented herein. For example, the UE 952 may receive a PUCCH resource configuration 954 that includes an identifier identifying an uplink beam 956 for transmitting an uplink control channel and an identifier identifying a downlink beam 958 paired with the uplink beam 956. In some examples, aspects of the PUCCH resource configuration 954 may be similar to Fig. 8A 800, including a PUCCH resource index 802a and a bidirectional TCI status field 804 indicating an uplink beam 956 and a paired downlink beam 958. In some examples, aspects of the PUCCH resource configuration 954 may be similar to Figure 8B The PUCCH resource configuration 820 includes a PUCCH resource index 802b, an uplink TCI status field indicating an uplink beam 956, and a downlink TCI status field 824 indicating a downlink beam 958 paired with the uplink beam 956.

[0112] like Fig. 9B As shown in , UE 952 may receive default downlink beam signaling 960 that configures a default downlink beam 962. In some examples, after UE 952 receives an initial higher layer configuration for the TCI state but before an activation command for the TCI state, UE 952 may receive downlink transmissions using, for example, the default downlink beam 962.

[0113] In some examples, when, for example, a downlink channel (e.g., PDCCH or PDSCH) and / or a downlink reference signal is not configured with a beam indication, the UE 952 may receive a downlink transmission using a default downlink beam 962. For example, one or more downlink channels and / or downlink reference signals associated with a TCI and / or beam may not be configured with a beam indication or a TCI field may not be present.

[0114] In some examples, when, for example, reception of a downlink transmission is scheduled for a time offset by an interval less than a beam switching wait time threshold (e.g., a beamSwitchingTiming parameter), the UE 952 may receive the downlink transmission using a default downlink beam 962. For example, the downlink transmission may include a downlink data channel (e.g., a PDSCH), a non-periodic CSI-RS beam with a schedule, or a CSI-RS that triggers an offset less than the beam switching wait time threshold.

[0115] In some examples, when, for example, a beam update command has been received, transmitted, or acknowledged, but not yet applied, the UE 952 may receive a downlink transmission using a default downlink beam 962. For example, a downlink transmission may arrive during a period (e.g., X milliseconds) after receiving, transmitting, or acknowledging a beam update command but before applying a beam update. In some examples, the beam update command may be received via RRC signaling, DCI, or a media access control (MAC) control element (MAC-CE).

[0116] like Fig. 9B As shown in , UE 952 is scheduled to transmit a first PUCCH transmission 964a at a first time (T1) and a second PUCCH transmission 964b at a later time (T3). UE 952 may use uplink beam 956 to transmit the first PUCCH transmission 964a and the second PUCCH transmission 964b.

[0117] exist Fig. 9B In the illustrated example 950 of , after receiving PUCCH resource configuration 954 and default downlink beam signaling 960, UE 952 may receive DCI 966. DCI 914 may schedule one or more downlink transmissions from a base station. Fig. 9B In example 950, DCI 966 may schedule a first downlink transmission 968a at a second time (T2), a second downlink transmission 968b at a third time (T3), a third downlink transmission 968c at a fourth time (T4), and a fourth downlink transmission 968d at a time (T6).

[0118] UE 952 may receive a first downlink transmission 968a at a second time (T2) using the default downlink beam 962. Fig. 9B In the illustrated example 950 of , UE 952 is scheduled to perform full-duplex communication at a third time (T3). For example, at the third time (T3), UE 952 is scheduled to transmit a second PUCCH transmission 964b and receive a second downlink transmission 968b. In some examples where the occurrence of an ongoing PUCCH transmission is scheduled to overlap in time with a downlink transmission (e.g., at the third time (T3)), UE 952 may switch the beam used to receive the downlink transmission from the default downlink beam signaling 960 to the downlink beam 958 indicated by the PUCCH resource configuration 954. That is, the UE 952 may replace the default downlink beam with the spatial setting associated with the downlink beam 958 indicated by the PUCCH resource configuration 954. For example, at a third time (T3), the UE 952 may use uplink beam 956 to transmit a second PUCCH transmission 96bn and may use downlink beam 958 to full-duplex receive a second downlink transmission 968b.

[0119] In some examples, after the UE 952 switches the default downlink beam to the spatial arrangement associated with the downlink beam 958 indicated by the PUCCH resource configuration 954, the UE 952 may continue to receive downlink transmissions using the downlink beam 958 indicated by the PUCCH resource configuration 904. For example, in such examples, the UE 952 may receive a third downlink transmission 968c using the downlink beam 958 at a fourth time (T4).

[0120] In some examples, UE 952 may continue to use downlink beam 958 as a default downlink beam until UE 952 receives signaling (e.g., from a base station) to reset (or switch) the spatial setting of the default downlink beam. For example, at a fifth time (T5), UE 952 may receive default downlink beam signaling 970 including an identifier identifying default downlink beam 972. In some such examples, UE 952 may use downlink beam 958 as a default downlink beam for receiving corresponding downlink transmissions after switching the default downlink beam to the spatial setting associated with downlink beam 958 until default downlink beam signaling 970 is received. For example, at Fig. 9B In example 950, UE 952 may use downlink beam 958 as a default downlink beam for receiving one or more downlink transmissions received after a third time (T3) and before a fifth time (T5). Fig. 9BAs shown in , after receiving the default downlink beam signaling 970, the UE 952 may receive the corresponding downlink transmission(s) using the default downlink beam 972. For example, the UE 952 may receive the fourth downlink transmission 968d using the default downlink beam 972 at the sixth time (T6).

[0121] In a third aspect, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink control channel based on a reference signal (RS) configuration, measurement, or synchronization signal block (SSB). For example, the downlink beam may be based on an implicit indication rather than an explicit indication of the paired downlink beam.

[0122] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink control channel based on information in a beam failure detection (BFD) / radio link measurement (RLM) reference signal configuration. In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink control channel based on performing a self-interference measurement (SIM) measurement and / or one or more beam management (BM) measurements. In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink control channel based on a downlink SSB that overlaps with a random access channel (RACH) opportunity.

[0123] For example, the UE may need to monitor the quality of the beam that the UE uses to communicate with the base station. For example, the UE may monitor the quality of the signal received via (the) receive beam. A beam failure detection (BFD) procedure may be used to identify beam quality issues, and a beam failure recovery (BFR) procedure may be used when a beam failure is detected. In order to monitor active link performance, the UE may perform measurements of at least one signal (e.g., a reference signal) for beam failure detection. For example, a base station may transmit a CMR reference signal that configures a channel measurement resource (CMR) and an IMR reference signal that configures an interference measurement resource (IMR) for self-interference measurement of full-duplex communication.

[0124] The measurements may include deriving a metric similar to the signal to interference plus noise ratio (SINR) of the signal, or the RSRP strength or block error rate (BLER) of a reference control channel selected by the base station and / or implicitly derived by the UE based on an existing RRC configuration (e.g., based on a PUCCH resource configuration). The reference signal may include any of a CSI-RS, a physical broadcast channel (PBCH), a synchronization signal, or other reference signals for time and / or frequency tracking, etc. In some cases, the UE may determine a configured metric, such as a BLER of the reference signal. The measurement(s) may indicate the ability of the UE to transmit uplink transmissions to the base station using a beam.

[0125] In some examples, the UE and the base station may use beamforming with at least one active downlink and uplink beam pair for full-duplex communication. As beam conditions change, the UE may continue to perform measurements, such as layer 1 beam management. For full-duplex communication, the UE may perform measurements on one or more beam pairs (e.g., a pair of uplink beams for transmitting uplink communications and a downlink beam for receiving downlink communications in full-duplex mode). The UE may perform measurements based on one or more DL and UL reference signals for each beam (e.g., CSI-RS or SSB of a downlink beam) and perform self-interference measurements (SIM) based on SRS transmitted from an uplink beam. The base station may transmit a CMR reference signal and an interference measurement resource (IMR) configuring a channel measurement resource (CMR) to perform, for example, a signal to interference plus noise ratio (SINR) measurement. CMR measures downlink channel quality, and IMR measures self-interference from an uplink beam to its own downlink beam at the UE. In the case of using CMR and IMR, the UE measures the SINR value for each uplink and downlink beam pair. The UE may perform measurements for each possible beam combination (e.g., each candidate beam pair). In some examples, the UE may report to the base station measurements for a set of one or more candidate beam pair combinations with the best SINR values ​​for full-duplex communication based on channel and self-interference measurements. For example, the UE may report the top N best full-duplex candidate beam pairs with the highest SINR values, where N is an integer. N may be configured by the base station or may be a defined number. The report may be referred to as a beam management report.

[0126] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink control channel based on information in a BFD / RLM reference signal configuration. For example, a BFD / RLM reference signal configuration may include an uplink beam in a CMR reference signal configuration associated with a PUCCH resource configuration (e.g., Figure 6 The uplink beam identifier 604 of the PUCCH resource configuration 600 indicates an uplink beam paired with a downlink beam.

[0127] In some examples, the UE may identify a downlink beam to pair with an uplink beam for transmitting an uplink control channel based on a downlink beam with a best SINR value in the candidate beam pair combination. For example, the candidate beam pair combination may include an uplink beam (e.g., a downlink beam indicated in the PUCCH resource configuration) that is paired with the uplink beam indicated in the PUCCH resource configuration. Figure 6 The uplink beam identifier 604 of the PUCCH resource configuration 600 indicates different combinations of downlink beams paired with an uplink beam).

[0128] In some examples, if there is a RACH opportunity overlapping with a downlink SSB in full-duplex mode, the UE may identify a downlink beam paired with an uplink beam for transmitting an uplink control channel based on the downlink SSB overlapping with the RACH opportunity, wherein the beam used to transmit the RACH opportunity is the same as the uplink beam used to transmit the uplink control channel. That is, the UE may identify the paired downlink beam based on the RACH preamble beam. For example, the UE identifies the same RACH preamble beam as the uplink beam indicated in the PUCCH resource configuration for transmitting the uplink control channel. The UE may use the downlink SSB corresponding to the identified RACH preamble beam to identify (or set) the downlink beam paired with the uplink beam for transmitting the uplink control channel.

[0129] Fig.10 An example communication flow 1000 between a base station 1002 and a UE 1004 as presented herein is illustrated. In the illustrated example, the communication flow 1000 facilitates the UE 1004 to identify a downlink beam paired with an uplink beam for performing full-duplex communication. Aspects of the base station 1002 may be implemented by the base station 102 / 180, the base station 310, and / or the first base station 402a, 402b. Aspects of the UE 1004 may be implemented by the UE 104, the UE 350, the first UE 404b, 404c, the UE 702, the UE 752, the UE 902, and / or the UE 952. Although in the example of FIG. Fig.10 Not shown in the illustrated example, but it can be appreciated that in additional or alternative examples, base station 1002 can be in communication with one or more other base stations or UEs, and / or UE 1004 can be in communication with one or more other base stations or UEs.

[0130] At 1010, base station 1002 may determine a PUCCH resource configuration for configuring PUCCH resources at UE 1004. For example, base station 1002 may determine a PUCCH resource configuration 1020 that includes a PUCCH resource index and spatial relationship information of an uplink beam for transmitting an uplink control channel (e.g., PUCCH). In some examples, base station 1002 may determine a downlink beam paired with an uplink beam for receiving an uplink control channel from UE 1004.

[0131] The base station 1002 transmits a PUCCH resource configuration 1020 that is received by the UE 1004. The base station 1002 may transmit the PUCCH resource configuration 1020 via RRC signaling. The PUCCH resource configuration 1020 may include a PUCCH resource index identifying a PUCCH resource and an uplink beam identifier identifying an uplink beam for transmitting an uplink control channel.

[0132] At 1030 , the UE 1004 may determine an uplink beam for transmitting the uplink control channel. For example, the UE 1004 may decode the PUCCH resource configuration 1020 to determine an uplink beam 1032 for transmitting the uplink control channel to the base station 1002 .

[0133] At 1040, UE 1004 determines a downlink beam for full-duplex reception of downlink transmissions from base station 1002 that overlaps in time with transmissions of an uplink control channel. For example, UE 1004 may determine downlink beam 1042 that is paired with uplink beam 1032.

[0134] At 1050, UE 1004 performs full-duplex communication with base station 1002. For example, UE 1004 may transmit uplink control channel 1052 using uplink beam 1032 and receive downlink transmission 1054 from base station 1002 using downlink beam 1042. The transmission of uplink control channel 1052 may overlap in time with the reception of downlink transmission 1054.

[0135] In a similar manner, at 1060, the base station 1002 performs full-duplex communication with the UE 1004. For example, the base station 1002 may transmit a downlink transmission 1054 using the downlink beam 1042 and receive an uplink control channel 1052 using the uplink beam 1032. The downlink transmission 1054 may include a CORESET, a PDSCH, or a CSI-RS.

[0136] In some examples, UE 1004 may determine at 1040 a downlink beam 1042 based on scheduling information received from base station 1002. For example, PUCCH resource configuration 1020 may correspond to Figure 6 The PUCCH resource configuration 600 includes a PUCCH resource index 602 and an uplink beam identifier 604. In such an example, the PUCCH resource configuration 1020 may be configured for half-duplex communication because the PUCCH resource configuration may not include a downlink beam paired with an uplink beam.

[0137] In some examples, base station 1002 may transmit DCI 1034 for reception by UE 1004. DCI 1034 may schedule transmission of uplink control channel 1052 and reception of downlink transmission 1054. DCI 1034 may include an identifier of a downlink beam paired with uplink beam 1032 for transmitting uplink control channel 1052. UE 1004 may determine, at 1040, a downlink beam paired with uplink beam 1032 based on the downlink beam identifier provided by DCI 1034.

[0138] In some examples, DCI 1034 may correspond to a single DCI that schedules uplink transmissions and downlink transmissions 1054 for uplink channel 1052. For example, DCI 1034 may correspond to Fig. 7A In some examples, DCI 1034 may correspond to different DCIs for scheduling uplink transmissions and downlink transmissions 1054 of uplink control channel 1052, such as Figure 7B Example 750 of . For example, base station 1002 may transmit a first DCI (e.g., first DCI 756) that schedules uplink transmissions of uplink control channel 1052. Base station 1002 may also transmit a second DCI (e.g., second DCI 758) that schedules downlink transmissions 1054.

[0139] In some examples, the UE 1004 may determine at 1040 a downlink beam paired with an uplink beam used to transmit the uplink control channel 1052 based on information included in the PUCCH resource configuration 1020. For example, the PUCCH resource configuration 1020 may include a TCI status field, and the UE 1004 may identify the downlink beam 1042 paired with the uplink beam 1032 used to transmit the uplink control channel 1052 based on the TCI status field.

[0140] In some examples, the PUCCH resource configuration 1020 may include a bidirectional TCI status field, such as Fig. 8A 804. The bidirectional TCI status field may include a first beam for transmitting an uplink control channel 1052 and a second beam for full-duplex reception of a downlink transmission 1054. In such an example, the UE 1004 may determine the downlink beam 1042 based on the second beam of the bidirectional TCI status field at 1040. For example, and with reference to the example bidirectional TCI status field 804, the UE 1004 may determine the downlink beam 1042 based on the beam identified by the downlink beam identifier 808a.

[0141] In some examples, the PUCCH resource configuration 1020 may include two unidirectional TCI status fields, such as Figure 8B 820 of the PUCCH resource configuration 820. The first direction TCI status field may include an identifier of the uplink beam, and the second direction TCI status field may include an identifier of the downlink beam. In such an example, the UE 1004 may determine the downlink beam 1042 at 1040 based on the downlink beam identified by the second direction TCI status field. For example, and with reference to Figure 8B With respect to the PUCCH resource configuration 820 , the UE 1004 may determine the downlink beam 1042 based on the beam identified by the downlink beam identifier 808b of the downlink TCI status field 824 .

[0142] In some examples, UE 1004 may determine at 1040 a downlink beam to pair with an uplink beam used to transmit an uplink control channel 1052 based on a reference signal (RS) configuration, measurement, or synchronization signal block (SSB).

[0143] For example, the UE 1004 may determine, based on information in the BFD / RLM reference signal configuration, a downlink beam to pair with an uplink beam for transmitting the uplink control channel 1052. For example, the BFD / RLM reference signal configuration may include an uplink beam in the CMR reference signal configuration that is paired with an uplink beam associated with a PUCCH resource configuration (e.g., Figure 6 The uplink beam identifier 604 of the PUCCH resource configuration 600 indicates an uplink beam paired with a downlink beam.

[0144] In some examples, UE 1004 may determine at 1040 a downlink beam to pair with an uplink beam for transmitting uplink control channel 1052 based on a downlink beam with a best SINR value in the candidate beam pair combination. For example, the candidate beam pair combination may include an uplink beam indicated in the PUCCH resource configuration (e.g., indicated by Figure 6 The uplink beam identifier 604 of the PUCCH resource configuration 600 indicates different combinations of downlink beams paired with an uplink beam).

[0145] In some examples, if there is a RACH opportunity overlapping with a downlink SSB in full-duplex mode, the UE 1004 may determine at 1040 a downlink beam paired with an uplink beam for transmitting an uplink control channel 1052 based on the downlink SSB overlapping with the RACH opportunity, wherein the beam for transmitting the RACH opportunity is the same as the uplink beam for transmitting the uplink control channel. That is, the UE 1004 may identify the paired downlink beam 1042 based on the RACH preamble beam. For example, the UE 1004 identifies the same RACH preamble beam as the uplink beam 1032 indicated in the PUCCH resource configuration 1020 for transmitting the uplink control channel 1052. The UE 1004 may identify (or set) the downlink beam 1042 paired with the uplink beam 1032 for transmitting the uplink control channel 1052 using the downlink SSB corresponding to the identified RACH preamble beam.

[0146] Fig.11 1100 is a flow chart of a wireless communication method. The method may be performed by a UE (e.g., UE 104, UE 350, and / or Fig.12 The method may enable the UE to identify a downlink beam paired with an uplink beam used to transmit an uplink transmission, such as in conjunction with Fig.10 described in all aspects.

[0147] At 1102, the UE receives a PUCCH resource configuration from the base station, such as in combination with Fig.10 The PUCCH resource configuration 1020 is described. For example, 1102 may be composed of Fig.12 The PUCCH resource configuration receiving component 1240 of the device 1202 may be performed. The PUCCH resource configuration may indicate an uplink beam used to transmit an uplink transmission. In some examples, the uplink transmission may include an uplink control channel, such as a PUCCH.

[0148] At 1106, the UE identifies a downlink beam paired with an uplink beam used to transmit an uplink transmission, such as in conjunction with Fig.10 1040 as described. For example, 1106 may be Fig.12 The paired downlink beams may be performed by a downlink beam identification component 1242 of the device 1202. The paired downlink beams may facilitate full-duplex reception of downlink transmissions from a base station that are temporally overlapped with transmissions of uplink transmissions.

[0149] At 1120, the UE performs full-duplex communication with the base station by transmitting uplink transmissions using the uplink beam while receiving downlink transmissions using the paired downlink beam, as in conjunction with Fig.10 For example, 1120 may be composed of Fig.12 The full-duplex execution component 1244 of the device 1202 is executed.

[0150] In some examples, the PUCCH resource configuration may indicate an uplink beam used to transmit an uplink transmission, such as in conjunction with Figure 6 In some such examples, the UE may receive a DCI indicating a downlink beam paired with an uplink beam used to transmit an uplink transmission. For example, at 1104, the UE may receive a DCI scheduling uplink transmissions and downlink transmissions for full-duplex communication, such as in conjunction with Fig. 7A DCI 706 and / or Figure 7B The second DCI 758 is described. For example, 1104 may be Fig.12 The received DCI may indicate a downlink beam paired with an uplink beam used to transmit an uplink transmission. For example, and with reference to Fig. 7A In the example 700 of FIG. 1 , the DCI 706 may include a downlink beam indicator 706a indicating a downlink beam paired with an uplink beam used to transmit an uplink transmission. Figure 7B In example 750 of the present invention, the second DCI 758 may include a downlink beam indicator 758a indicating a downlink beam paired with the uplink beam used to transmit the uplink transmission. In some such examples where the UE receives a DCI indicating a downlink beam paired with the uplink beam used to transmit the uplink transmission, the UE may identify the downlink beam paired with the uplink beam used to transmit the uplink transmission based on the downlink beam indicator provided by the DCI (e.g., at 1106).

[0151] In some examples, the PUCCH resource configuration may indicate a downlink beam paired with an uplink beam used to transmit an uplink transmission. For example, the PUCCH resource configuration may include a TCI status field. In some such examples, the UE may identify the downlink beam paired with the uplink beam used to transmit the uplink transmission based on the TCI status field (e.g., at 1106).

[0152] In some examples, the TCI status field may include a bidirectional TCI status field indicating an uplink beam for transmitting uplink transmissions and a paired downlink beam for full-duplex reception of downlink transmissions, such as in conjunction with Fig. 8A800 of the PUCCH resource configuration 800. For example, the bidirectional TCI status field 804 includes an uplink beam identifier 806a that identifies an uplink beam for transmitting an uplink transmission and a downlink beam identifier 808a that identifies a downlink beam paired with the uplink beam. In some such examples, the UE may identify the downlink beam paired with the uplink beam for transmitting the uplink transmission based on the downlink beam identifier 808a (e.g., at 1106).

[0153] In some examples, the TCI status field may include two unidirectional TCI states, such as Figure 8B The example PUCCH resource configuration 820 is described. For example, the PUCCH resource configuration 820 includes an uplink TCI status field 822, which includes an uplink beam identifier 806b that identifies an uplink beam used to transmit an uplink transmission. The PUCCH resource configuration 820 also includes a downlink TCI status field 824, which includes a downlink beam identifier 808b that identifies a downlink beam paired with the uplink beam used to transmit the uplink transmission.

[0154] Some examples where the PUCCH resource configuration includes a TCI status field (such as Fig. 8A PUCCH resource configuration 800 and / or Figure 8B In the PUCCH resource configuration 820 of the UE, the UE may switch reception of the downlink transmission from the first downlink beam to the downlink beam indicated by the TCI status field of the PUCCH resource configuration. For example, at 1108, the UE may receive scheduling information to use a downlink beam to receive periodic downlink transmissions, such as in conjunction with Fig. 9A For example, 1108 may be performed by Fig.12 The scheduling information component 1248 of the device 1202 is executed.

[0155] At 1110, the UE may receive DCI for scheduling uplink transmission based on the PUCCH resource configuration, such as in combination with Fig. 9A For example, 1110 may be represented by Fig.12 The uplink transmission may be performed by the DCI receiving component 1246 of the device 1202. In some examples, the uplink transmission may overlap in time with at least one opportunity of the periodic downlink transmission, such as in conjunction with Fig. 9A 1 and 12. The first PUCCH transmission 916a and the second SPS downlink transmission 912b at the second time (T2) are described.

[0156] At 1112, the UE may switch reception of the at least one opportunity for periodic downlink transmission from the downlink beam to the paired downlink beam, such as in conjunction with Fig. 9A The second SPS downlink transmission 912b at the second time (T2) and / or the third SPS downlink transmission 912c at the third time (T3) are described. For example, 1112 may be Fig.12 The beam switching component 1250 of the device 1202 is performed.

[0157] Some examples where the PUCCH resource configuration includes a TCI status field (such as Fig. 8A PUCCH resource configuration 800 and / or Figure 8B In the PUCCH resource configuration 820 of the UE, the UE may switch reception of the downlink transmission from the default downlink beam to the downlink beam indicated by the TCI status field of the PUCCH resource configuration. For example, at 1114, when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, the UE may switch reception of the downlink transmission from the default downlink beam to the paired downlink beam, such as in combination with Fig. 9B As described in example 950. For example, 1114 may be Fig.12 The beam switching component 1250 of the device 1202 is performed.

[0158] In some examples, the UE may switch reception of downlink transmissions from a default downlink beam to a paired downlink beam during the overlap in the time domain, such as in conjunction with the paired downlink beam. Fig. 9B In some examples, the UE may continue to use the paired downlink beams to receive subsequent downlink transmissions after an overlap in the time domain, such as in conjunction with the pairing of the paired downlink beams. Fig. 9B Reception of the third downlink transmission 968c is described.

[0159] In some examples, the UE may continue to use the paired downlink beam to receive subsequent downlink transmissions until the UE receives signaling to update the default downlink beam. For example, at 1116, the UE may receive signaling from the base station to update the default downlink beam, such as in conjunction with Fig. 9B The default downlink beam signaling 970 is described. For example, 1116 may be Fig.12 The default downlink beam component 1252 of device 1202 is performed.

[0160] At 1118, the UE may reset the default downlink beam based on the received signaling, such as in conjunction with the Fig. 9B The reception of the fourth downlink transmission 968d at the sixth time (T6) of Fig.12 The beam resetting component 1254 of the device 1202 is performed.

[0161] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on a beam failure detection reference signal configuration for a full-duplex communication mode, e.g., at 1106. For example, the beam failure detection reference signal configuration may indicate a downlink beam paired with an uplink beam used to transmit an uplink transmission.

[0162] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on a radio link management reference signal configuration for a full-duplex communication mode, e.g., at 1106. For example, the radio link management reference signal configuration may indicate a downlink beam paired with an uplink beam used to transmit an uplink transmission.

[0163] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on a measurement (e.g., at 1106). For example, the UE may perform a SIM measurement. In some such examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on a most recent SIM measurement. In some examples, the UE may perform one or more beam management (BM) measurements. In some such examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on the one or more BM measurements.

[0164] In some examples, the UE may identify a downlink beam paired with an uplink beam used to transmit an uplink transmission based on a downlink SSB overlapping with a RACH opportunity in a full-duplex communication mode (e.g., at 1106). In some such examples, the UE may identify a downlink SSB corresponding to a beam associated with a RACH opportunity that matches the uplink beam used to transmit an uplink transmission.

[0165] Fig.1212 is a diagram 1200 illustrating an example of a hardware implementation of a device 1202. The device 1202 is a UE and includes a cellular baseband processor 1204 (also referred to as a modem) coupled to a cellular RF transceiver 1222 and one or more subscriber identity modules (SIM) cards 1220, an application processor 1206 coupled to a secure digital (SD) card 1208 and a screen 1210, a Bluetooth module 1212, a wireless local area network (WLAN) module 1214, a global positioning system (GPS) module 1216, and a power supply 1218. The cellular baseband processor 1204 communicates with the UE 104 and / or the base station 102 / 180 through the cellular RF transceiver 1222. The cellular baseband processor 1204 may include a computer-readable medium / memory. The computer-readable medium / memory may be non-transitory. The cellular baseband processor 1204 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the cellular baseband processor 1204, causes the cellular baseband processor 1204 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the cellular baseband processor 1204 when executing the software. The cellular baseband processor 1204 further includes a receiving component 1230, a communication manager 1232, and a transmission component 1234. The communication manager 1232 includes one or more of the illustrated components. The components within the communication manager 1232 may be stored in a computer-readable medium / memory and / or configured as hardware within the cellular baseband processor 1204. The cellular baseband processor 1204 may be a component of the UE 350 and may include a memory 360 and / or at least one of the following: a TX processor 368, an RX processor 356, and a controller / processor 359. In one configuration, the device 1202 may be a modem chip and include only the baseband processor 1204, and in another configuration, the device 1202 may be the entire UE (e.g., see Figure 3 UE 350) and includes the aforementioned additional modules of device 1202.

[0166] The communication manager 1232 includes a PUCCH resource configuration receiving component 1240, which is configured to receive a PUCCH resource configuration, for example, as described in conjunction with Fig.11 The communication manager 1232 also includes a downlink beam identification component 1242, which is configured to identify a downlink beam paired with an uplink beam used to transmit an uplink transmission, for example, as described in conjunction with Fig.11 The communication manager 1232 also includes a full-duplex execution component 1244, which is configured to perform full-duplex communication with the base station by transmitting uplink transmissions using the uplink beam while receiving downlink transmissions using the paired downlink beam, for example, as combined with Fig.11The communication manager 1232 also includes a DCI receiving component 1246, which is configured to receive DCI (e.g., as described in conjunction with the uplink transmission and downlink transmission scheduled for full-duplex communication) Fig.11 1104), and / or receiving a DCI for scheduling an uplink transmission based on a PUCCH resource configuration, and wherein the uplink transmission overlaps in time with at least one opportunity of a periodic downlink transmission (e.g., as combined with Fig.11 The communication manager 1232 also includes a scheduling information component 1248, which is configured to receive scheduling information for receiving periodic downlink transmissions using a downlink beam, for example, as described in conjunction with Fig.11 The communication manager 1232 also includes a beam switching component 1250, which is configured to: switch reception of at least one opportunity of periodic downlink transmission from the downlink beam to the paired downlink beam (e.g., as combined with Fig.11 1112), and / or when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, switching reception of the downlink transmission from the default downlink beam to the paired downlink beam (e.g., as combined with Fig.11 The communication manager 1232 also includes a default downlink beam component 1252, which is configured to receive signaling from the base station to update the default downlink beam, for example, as described in conjunction with Fig.11 The communication manager 1232 also includes a beam resetting component 1254, which is configured to reset the default downlink beam based on the received signaling, for example, as described in conjunction with Fig.11 1118 described.

[0167] The apparatus may include executing Fig.11 The additional components of each box of the algorithm in the preceding flowchart. Thus, Fig.11 Each block in the aforementioned flow chart of can be performed by a component and the device may include one or more of those components. These components can be one or more hardware components specially 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.

[0168] In one configuration, the device 1202 (and specifically the cellular baseband processor 1204) includes: means for receiving a PUCCH resource configuration from a base station, the PUCCH resource configuration indicating an uplink beam for transmitting an uplink transmission. The example device 1202 also includes: means for identifying a downlink beam paired with the uplink beam for transmitting the uplink transmission, the paired downlink beam being used for full-duplex reception of downlink transmissions from the base station that overlap in time with the transmission of the uplink transmission. The example device 1202 also includes: means for performing full-duplex communication with the base station by transmitting an uplink transmission using the uplink beam while receiving the downlink transmission using the paired downlink beam. The example device 1202 also includes: means for receiving a DCI that schedules uplink transmissions and downlink transmissions for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam for transmitting the uplink transmission. The example device 1202 also includes: means for identifying a paired downlink beam based on a TCI status field of a PUCCH resource configuration. The example device 1202 also includes: means for receiving scheduling information to use a downlink beam to receive a periodic downlink transmission. The example device 1202 also includes: means for receiving a DCI for scheduling an uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission. The example device 1202 also includes: means for switching reception of the at least one opportunity of the periodic downlink transmission from the downlink beam to the paired downlink beam. The example device 1202 also includes: means for switching reception of the downlink transmission from the default downlink beam to the paired downlink beam when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain. The example device 1202 also includes: means for receiving signaling from the base station to update the default downlink beam, and wherein the UE continues to use the paired downlink beam to receive subsequent downlink transmissions until the UE receives the signaling to update the default downlink beam. The example device 1202 also includes: means for identifying the paired downlink beam for receiving downlink transmissions based on the beam failure detection reference signal configuration for the full-duplex communication mode. The example device 1202 also includes: means for identifying the paired downlink beam for full-duplex reception of downlink transmissions based on the radio link management reference signal configuration for the full-duplex communication mode. The example device 1202 also includes: means for performing SIM measurements, and wherein the UE identifies the downlink beam paired with the uplink beam for transmitting the uplink transmission based on the most recent SIM measurement.The example device 1202 also includes: means for performing one or more BM measurements, and wherein the UE identifies a downlink beam paired with the uplink beam for transmitting the uplink transmission based on the one or more BM measurements. The example device 1202 also includes: means for identifying a downlink beam paired with the uplink beam for transmitting the uplink transmission based on a downlink SSB overlapping with a RACH opportunity in a full-duplex communication mode, and wherein the beam associated with the RACH opportunity matches the uplink beam for transmitting the uplink transmission.

[0169] The aforementioned means may be one or more of the aforementioned components in the device 1202 configured to perform the functions recited by the aforementioned means. As previously described, the device 1202 may include the TX processor 368, the RX processor 356, and the controller / processor 359. Thus, in one configuration, the aforementioned means may be the TX processor 368, the RX processor 356, and the controller / processor 359 configured to perform the functions recited by the aforementioned means.

[0170] Fig.13 1300 is a flow chart of a wireless communication method. The method may be performed by a base station (e.g., base station 102 / 180, base station 310, and / or Fig.14 The method may enable a base station to identify a downlink beam paired with an uplink beam for receiving an uplink transmission, such as in conjunction with Fig.10 described in all aspects.

[0171] At 1302, the base station transmits a PUCCH resource configuration to the UE, such as in combination with Fig.10 The PUCCH resource configuration 1020 is described. For example, 1302 may be composed of Fig.14 The PUCCH resource configuration transmission component 1440 of the device 1402 may be performed. The PUCCH resource configuration may indicate an uplink beam for receiving an uplink transmission from the UE. In some examples, the uplink transmission may include an uplink control channel, such as a PUCCH.

[0172] At 1306, the base station determines a downlink beam to pair with the uplink beam used to receive the uplink transmission, such as in conjunction with Fig.10 For example, 1306 may be Fig.14 The paired downlink beams may be performed by a downlink beam identification component 1442 of the device 1402. The paired downlink beams may facilitate full-duplex transmission of downlink transmissions to the UE that overlaps in time with reception of uplink transmissions.

[0173] At 1320, the base station performs full-duplex communication with the UE by transmitting downlink transmissions using the paired downlink beam while receiving uplink transmissions using the uplink beam, as in conjunction with Fig.10 For example, 1320 may be described by Fig.14 The full-duplex execution component 1444 of the device 1402 is executed.

[0174] In some examples, the PUCCH resource configuration may indicate an uplink beam for receiving uplink transmissions from the UE, such as in conjunction with Figure 6 In some such examples, the base station may transmit a DCI indicating a downlink beam paired with an uplink beam for receiving uplink transmissions. For example, at 1304, the base station may transmit a DCI scheduling uplink transmissions and downlink transmissions for full-duplex communication, such as in conjunction with Fig. 7A DCI 706 and / or Figure 7B The second DCI 758 is described. For example, 1304 may be Fig.14 The DCI transmitted may indicate a downlink beam paired with an uplink beam for receiving an uplink transmission. For example, and with reference to Fig. 7A In the example 700 of FIG. 1 , the DCI 706 may include a downlink beam indicator 706a indicating a downlink beam paired with an uplink beam for receiving uplink transmissions. Figure 7B In example 750 of the present invention, the second DCI 758 may include a downlink beam indicator 758a indicating a downlink beam paired with an uplink beam for receiving uplink transmissions. In some such examples where the base station transmits a DCI indicating a downlink beam paired with an uplink beam for receiving uplink transmissions, the base station may determine the downlink beam paired with the uplink beam for receiving uplink transmissions based on the downlink beam indicator provided by the DCI (e.g., at 1306).

[0175] In some examples, the PUCCH resource configuration may indicate a downlink beam paired with an uplink beam for receiving uplink transmissions. For example, the PUCCH resource configuration may include a TCI status field. In some such examples, the base station may determine a downlink beam paired with an uplink beam for receiving uplink transmissions based on the TCI status field (e.g., at 1306).

[0176] In some examples, the TCI status field may include a bidirectional TCI status field indicating an uplink beam for receiving uplink transmissions and a paired downlink beam for full-duplex transmission of downlink transmissions, such as in conjunction with Fig. 8AThe bidirectional TCI status field 804 of the PUCCH resource configuration 800 of the present invention may be described. For example, the bidirectional TCI status field 804 includes an uplink beam identifier 806a that identifies an uplink beam for transmitting an uplink transmission and a downlink beam identifier 808a that identifies a downlink beam paired with the uplink beam. In some such examples, the base station may determine the downlink beam paired with the uplink beam for receiving the uplink transmission based on the downlink beam identifier 808a (e.g., at 1306).

[0177] In some examples, the TCI status field may include two unidirectional TCI states, such as Figure 8B 806b that identifies an uplink beam for transmitting uplink transmissions by the UE. The PUCCH resource configuration 820 also includes a downlink TCI status field 824 that includes a downlink beam identifier 808b that identifies a downlink beam paired with the uplink beam.

[0178] Some examples where the PUCCH resource configuration includes a TCI status field (such as Fig. 8A PUCCH resource configuration 800 and / or Figure 8B In the PUCCH resource configuration 820 of the PUCCH resource configuration, the base station may switch the transmission of the downlink transmission from the first downlink beam to the downlink beam indicated by the TCI status field of the PUCCH resource configuration. For example, at 1308, the base station may transmit scheduling information to the UE to use the downlink beam to receive the periodic downlink transmission, such as in conjunction with Fig. 9A For example, 1308 may be performed by Fig.14 The scheduling information component 1448 of the device 1402 is executed.

[0179] At 1310, the base station may transmit DCI for scheduling uplink transmission based on the PUCCH resource configuration, such as in combination with Fig. 9A For example, 1310 may be Fig.14 The uplink transmission may be performed by the DCI transmitting component 1446 of the device 1402. In some examples, the uplink transmission may overlap in time with at least one opportunity of the periodic downlink transmission, such as in conjunction with Fig. 9A 1 and 12. The first PUCCH transmission 916a and the second SPS downlink transmission 912b at the second time (T2) are described.

[0180] At 1312, the base station may switch transmission of the at least one opportunity for periodic downlink transmission from the downlink beam to the paired downlink beam, such as in conjunction with Fig. 9A The second SPS downlink transmission 912b at the second time (T2) and / or the third SPS downlink transmission 912c at the third time (T3) are described. For example, 1312 may be Fig.14 The beam switching component 1450 of the device 1402 is performed.

[0181] Some examples where the PUCCH resource configuration includes a TCI status field (such as Fig. 8A PUCCH resource configuration 800 and / or Figure 8B In the PUCCH resource configuration 820 of the UE, the base station may switch the transmission of the downlink transmission from the default downlink beam to the downlink beam indicated by the TCI status field of the PUCCH resource configuration. For example, at 1314, when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, the base station may switch the transmission of the downlink transmission from the default downlink beam to the paired downlink beam, such as in combination with Fig. 9B As described in example 950. For example, 1314 may be Fig.14 The beam switching component 1450 of the device 1402 is performed.

[0182] In some examples, the base station may switch the transmission of downlink transmissions from the default downlink beam to the paired downlink beam during the overlap in the time domain, such as in conjunction with the pairing of Fig. 9B In some examples, the base station may continue to use the paired downlink beams to transmit subsequent downlink transmissions after an overlap in the time domain, such as in conjunction with the paired downlink beams. Fig. 9B Reception of the third downlink transmission 968c is described.

[0183] In some examples, the base station may continue to use the paired downlink beam to transmit subsequent downlink transmissions until the base station transmits signaling to the UE to update the default downlink beam. For example, at 1316, the base station may transmit signaling to the UE to update the default downlink beam, such as in conjunction with Fig. 9B The default downlink beam signaling 970 is described. For example, 1316 may be Fig.14 The default downlink beam component 1452 of device 1402 is executed.

[0184] At 1318, the base station may reset the default downlink beam based on the transmission signaling, such as in conjunction with Fig. 9B For example, 1318 may be represented by the fourth downlink transmission 968d at the sixth time (T6) of Fig.14 The beam resetting component 1454 of the device 1402 is performed.

[0185] In some examples, the base station may determine a downlink beam paired with an uplink beam for receiving uplink transmissions based on a beam failure detection reference signal configuration for a full-duplex communication mode, e.g., at 1306. For example, the beam failure detection reference signal configuration may indicate a downlink beam paired with an uplink beam for receiving uplink transmissions.

[0186] In some examples, the base station may determine a downlink beam paired with an uplink beam for receiving uplink transmissions based on a radio link management reference signal configuration for a full-duplex communication mode, e.g., at 1306. For example, the radio link management reference signal configuration may indicate a downlink beam paired with an uplink beam for receiving uplink transmissions.

[0187] In some examples, the base station may determine, based on measurements (e.g., at 1306), a downlink beam to pair with an uplink beam for receiving an uplink transmission. For example, the UE may perform a SIM measurement. In some such examples, the base station may determine, based on the most recent SIM measurement received from the UE, a downlink beam to pair with an uplink beam for receiving an uplink transmission. In some examples, the UE may perform one or more beam management (BM) measurements. In some such examples, the base station may determine, based on one or more BM measurements received from the UE, a downlink beam to pair with an uplink beam for receiving an uplink transmission.

[0188] In some examples, the base station may determine a downlink beam paired with an uplink beam for transmitting uplink transmissions based on a downlink SSB overlapping with a RACH opportunity in a full-duplex communication mode, e.g., at 1306. In some such examples, the base station may determine a downlink SSB corresponding to a beam associated with a RACH opportunity that matches an uplink beam for receiving uplink transmissions.

[0189] Fig.141400 is an example of a hardware implementation of an illustrated device 1402. The device 1402 is a base station and includes a baseband unit 1404. The baseband unit 1404 can communicate with the UE 104 through a cellular RF transceiver 1422. The baseband unit 1404 may include a computer-readable medium / memory. The baseband unit 1404 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the baseband unit 1404, causes the baseband unit 1404 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the baseband unit 1404 when executing the software. The baseband unit 1404 further includes a receiving component 1430, a communication manager 1432, and a transmission component 1434. The communication manager 1432 includes the one or more illustrated components. The components within the communication manager 1432 may be stored in a computer-readable medium / memory and / or configured as hardware within the baseband unit 1404. The baseband unit 1404 may be a component of the base station 310 and may include the memory 376 and / or at least one of the following: the TX processor 316 , the RX processor 370 , and the controller / processor 375 .

[0190] The communication manager 1432 includes a PUCCH resource configuration transmission component 1440, which is configured to transmit a PUCCH resource configuration to a UE, for example, as combined with Fig.13 The communication manager 1432 also includes a downlink beam identification component 1442, which is configured to determine a downlink beam paired with an uplink beam for receiving an uplink transmission, for example, as described in conjunction with Fig.13 The communication manager 1432 also includes a full-duplex execution component 1444, which is configured to perform full-duplex communication with the UE by transmitting downlink transmissions using the paired downlink beam while receiving uplink transmissions using the uplink beam, for example, as combined with Fig.13 The communication manager 1432 also includes a DCI transmitting component 1446, which is configured to transmit DCI (e.g., as combined with the uplink transmission and downlink transmission scheduled for full-duplex communication) Fig.13 1304), and / or transmitting a DCI for scheduling uplink transmission based on a PUCCH resource configuration (e.g., as described in conjunction with Fig.13 The communication manager 1432 also includes a scheduling information component 1448, which is configured to transmit scheduling information to the UE to use the downlink beam to receive periodic downlink transmissions, for example, as described in conjunction with Fig.13The communication manager 1432 also includes a beam switching component 1450, which is configured to: switch the transmission of at least one opportunity of the periodic downlink transmission from the downlink beam to the paired downlink beam (e.g., as combined with Fig.13 1312), and / or when the UE is scheduled to transmit one or more uplink transmissions that overlap with a downlink transmission in the time domain, switching the transmission of the downlink transmission from the default downlink beam to the paired downlink beam (e.g., as described in conjunction with Fig.13 1314 described). The communication manager 1432 also includes a default downlink beam component 1452, which is configured to transmit signaling to the UE to update the default downlink beam, for example, as combined with Fig.13 The communication manager 1432 also includes a beam resetting component 1454, which is configured to reset the default downlink beam based on the transmission signaling, for example, as described in conjunction with Fig.13 1318 described.

[0191] The apparatus may include executing Fig.13 The additional components of each box of the algorithm in the preceding flowchart. Thus, Fig.13 Each block in the aforementioned flow chart of can be performed by a component and the device may include one or more of those components. These components can be one or more hardware components specially 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.

[0192] In one configuration, the device 1402 (and specifically the baseband unit 1404) includes: means for transmitting a PUCCH resource configuration to a UE, the PUCCH resource configuration indicating an uplink beam for receiving an uplink transmission. The example device 1402 also includes: means for determining a downlink beam paired with the uplink beam for receiving the uplink transmission, the paired downlink beam being used for full-duplex transmission of downlink transmissions to the UE that overlaps in time with the reception of the uplink transmission. The example device 1402 also includes: means for performing full-duplex communication with the UE by transmitting downlink transmissions using the paired downlink beam while receiving the uplink transmission using the uplink beam. The example device 1402 also includes: means for transmitting DCI that schedules uplink transmissions and downlink transmissions for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam for receiving the uplink transmission. The example device 1402 also includes: means for determining a paired downlink beam based on a TCI status field of a PUCCH resource configuration. The example device 1402 also includes: means for transmitting scheduling information to the UE to use a downlink beam to receive a periodic downlink transmission. The example device 1402 also includes: means for transmitting a DCI scheduling an uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission. The example device 1402 also includes: means for switching transmission of the at least one opportunity of the periodic downlink transmission from the downlink beam to the paired downlink beam. The example device 1402 also includes: means for switching transmission of the downlink transmission from the default downlink beam to the paired downlink beam when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain. The example device 1402 also includes: means for switching transmission of the downlink transmission from the default downlink beam to the paired downlink beam during the overlap in the time domain. The example device 1402 also includes: means for transmitting signaling to the UE to update the default downlink beam, and wherein the base station continues to use the paired downlink beam to transmit subsequent downlink transmissions until the base station transmits the signaling to update the default downlink beam. The example device 1402 also includes: means for determining the paired downlink beam to be used for transmitting the downlink transmission based on the beam failure detection reference signal configuration for the full-duplex communication mode. The example device 1402 also includes: means for determining the paired downlink beam to be used for transmitting the downlink transmission based on the radio link management reference signal configuration for the full-duplex communication mode.Example device 1402 also includes: means for receiving one or more SIM measurements from the UE, and wherein the base station determines a downlink beam to pair with the uplink beam for receiving uplink transmission based on the most recent SIM measurement. Example device 1402 also includes: means for receiving one or more BM measurements from the UE, and wherein the base station determines a downlink beam to pair with the uplink beam for receiving uplink transmission based on the one or more BM measurements. Example device 1402 also includes: means for determining a downlink beam to pair with the uplink beam for receiving uplink transmission based on a downlink SSB overlapping with a RACH opportunity in a full-duplex communication mode, and wherein the beam associated with the RACH opportunity matches the uplink beam for receiving uplink transmission.

[0193] The aforementioned means may be one or more of the aforementioned components in the device 1402 configured to perform the functions recited by the aforementioned means. As previously described, the device 1402 may include the TX processor 316, the RX processor 370, and the controller / processor 375. Thus, in one configuration, the aforementioned means may be the TX processor 316, the RX processor 370, and the controller / processor 375 configured to perform the functions recited by the aforementioned means.

[0194] It should be understood that the specific order or hierarchy of each box in the disclosed process / flowchart is an illustration of an example approach. It should be understood that the specific order or hierarchy of each box in these process / flowcharts can be rearranged based on design preferences. In addition, some boxes can be combined or omitted. The attached method claims present the elements of various boxes in an exemplary order and are not meant to be limited to the specific order or hierarchy presented.

[0195] The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be easily understood by those skilled in the art, and the universal principles defined in this article can be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown in this article, but should be granted the full scope consistent with the claims in language, wherein the singular reference to the elements is not intended to represent "there is and only one", but "one or more", unless otherwise stated. Terms such as "if", "when..." and "when..." should be interpreted as meaning "under the condition", rather than implying a direct time relationship or reaction. That is, these phrases (e.g., "when...") do not imply an immediate action in response to the occurrence of an action or during the occurrence of an action, but only imply that an action will occur when the condition is met, and no specific or immediate time constraints are required for the action to occur. The wording "exemplary" is used herein to represent "used as an example, instance, or explanation". Any aspect described as "exemplary" herein need not be interpreted as being superior to or superior to other aspects. Unless otherwise stated, the term "some / certain" 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 multiple A, multiple B, or multiple 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, wherein 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 currently or later known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. The terms "module," "mechanism," "element," "device," etc. may not be a substitute for the term "means." Thus, no claim element should be construed as a means-plus-function unless the element is explicitly recited using the phrase "means for..."

[0196] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0197] Aspect 1 is a method for performing wireless communications at a user equipment (UE), comprising: receiving a PUCCH resource configuration from a base station, the PUCCH resource configuration indicating an uplink beam for transmitting an uplink transmission; identifying a downlink beam paired with the uplink beam for transmitting the uplink transmission, the paired downlink beam being used for full-duplex reception of a downlink transmission from the base station that overlaps in time with the transmission of the uplink transmission; and performing full-duplex communication with the base station by transmitting the uplink transmission using the uplink beam while receiving the downlink transmission using the paired downlink beam.

[0198] Aspect 2 is the method of aspect 1, further comprising: the uplink transmission comprises an uplink control channel.

[0199] Aspect 2 is a method of either Aspect 1 or Aspect 2, further comprising: the UE receives DCI scheduling the uplink transmission and the downlink transmission for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

[0200] Aspect 4 is the method of any one of Aspects 1 to 3, further comprising: the PUCCH resource configuration indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

[0201] Aspect 5 is the method of any one of Aspects 1 to 4, further comprising: the PUCCH resource configuration includes a TCI status field, and the UE identifies the paired downlink beam based on the TCI status field.

[0202] Aspect 6 is the method of any one of Aspects 1 to 5, further comprising: the TCI status field includes a bidirectional TCI status field indicating the uplink beam used to transmit the uplink transmission and the paired downlink beam used for full-duplex reception of the downlink transmission.

[0203] Aspect 7 is a method of any one of Aspects 1 to 6, further comprising: the PUCCH resource configuration includes an uplink TCI status field indicating the uplink beam used to transmit the uplink transmission and a downlink TCI status field indicating the paired downlink beam used for full-duplex reception of the downlink transmission.

[0204] Aspect 8 is a method of any one of Aspects 1 to 7, further comprising: receiving scheduling information for using a downlink beam to receive periodic downlink transmissions; receiving DCI for scheduling the uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission; and switching the reception of the at least one opportunity of the periodic downlink transmission from the downlink beam to the paired downlink beam.

[0205] Aspect 9 is the method of any one of Aspects 1 to 8, further comprising: when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, switching the reception of the downlink transmission from the default downlink beam to the paired downlink beam.

[0206] Aspect 10 is the method of any one of aspects 1 to 9, further comprising: the UE switching reception of the downlink transmission from the default downlink beam to the paired downlink beam during an overlap in the time domain.

[0207] Aspect 11 is the method of any one of aspects 1 to 10, further comprising: the UE continuing to receive the candidate downlink transmission using the paired downlink beam after the overlap in the time domain.

[0208] Aspect 12 is a method of any one of Aspects 1 to 11, further comprising: receiving signaling from the base station to update the default downlink beam, wherein the UE continues to use the paired downlink beam to receive subsequent downlink transmissions until the UE receives the signaling to update the default downlink beam.

[0209] Aspect 13 is the method of any one of Aspects 1 to 12, further comprising: the UE identifying the paired downlink beam for receiving the downlink transmission based on a beam failure detection reference signal configuration for a full-duplex communication mode.

[0210] Aspect 14 is the method of any one of Aspects 1 to 13, further comprising: the beam failure detection reference signal configuration indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

[0211] Aspect 15 is the method of any one of aspects 1 to 14, further comprising: the UE identifying the paired downlink beam for full-duplex reception of the downlink transmission based on a radio link management reference signal configuration for a full-duplex communication mode.

[0212] Aspect 16 is the method of any one of Aspects 1 to 15, further comprising: the radio link management reference signal configuration indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

[0213] Aspect 17 is the method of any one of Aspects 1 to 16, further comprising: performing SIM measurements, wherein the UE identifies the downlink beam paired with the uplink beam used to transmit the uplink transmission based on the most recent SIM measurements.

[0214] Aspect 18 is the method of any one of Aspects 1 to 17, further comprising: performing one or more BM measurements, wherein the UE identifies the downlink beam paired with the uplink beam used to transmit the uplink transmission based on the one or more BM measurements.

[0215] Aspect 19 is a method of any one of Aspects 1 to 18, further comprising: the UE identifies the downlink beam paired with the uplink beam used to transmit the uplink transmission based on a downlink SSB overlapping with a RACH opportunity in a full-duplex communication mode, wherein the beam associated with the RACH opportunity matches the uplink beam used to transmit the uplink transmission.

[0216] Aspect 20 is an apparatus for wireless communication, comprising: at least one processor coupled to a memory and configured to implement the method of any one of aspects 1 to 19.

[0217] Aspect 21 is an apparatus for wireless communication, comprising means for implementing the method of any one of aspects 1 to 19.

[0218] Aspect 22 is a computer-readable medium storing a computer-executable code, wherein the code, when executed, causes a processor to implement the method of any one of aspects 1 to 19.

[0219] Aspect 23 is a wireless communication method of a base station, comprising: transmitting a PUCCH resource configuration to a UE, the PUCCH resource configuration indicating an uplink beam for receiving an uplink transmission; determining a downlink beam paired with the uplink beam for receiving the uplink transmission, the paired downlink beam being used for full-duplex transmission of a downlink transmission to the UE that overlaps in time with the reception of the uplink transmission; and performing full-duplex communication with the UE by transmitting the downlink transmission using the paired downlink beam while receiving the uplink transmission using the uplink beam.

[0220] Aspect 24 is the method of aspect 23, further comprising: the uplink transmission comprises an uplink control channel.

[0221] Aspect 24 is a method of either Aspect 23 or Aspect 2, further comprising: the base station transmits a DCI scheduling the uplink transmission and the downlink transmission for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam for receiving the uplink transmission.

[0222] Aspect 26 is the method of any one of Aspects 23 to 25, further comprising: the PUCCH resource configuration indicates the downlink beam paired with the uplink beam used to receive the uplink transmission.

[0223] Aspect 27 is the method of any one of Aspects 23 to 26, further comprising: the PUCCH resource configuration includes a TCI status field, and the base station determines the paired downlink beam based on the TCI status field.

[0224] Aspect 28 is the method of any one of Aspects 23 to 27, further comprising: the TCI status field includes a bidirectional TCI status field indicating the uplink beam used to receive the uplink transmission and the paired downlink beam used to perform full-duplex transmission on the downlink transmission.

[0225] Aspect 29 is a method of any one of Aspects 23 to 28, further comprising: the PUCCH resource configuration includes an uplink TCI status field indicating the uplink beam used to receive the uplink transmission and a downlink TCI status field indicating the paired downlink beam used for full-duplex transmission of the downlink transmission.

[0226] Aspect 30 is a method of any one of Aspects 23 to 29, further comprising: transmitting scheduling information to the UE to use a downlink beam to receive a periodic downlink transmission; transmitting DCI scheduling the uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission; and switching the transmission of the at least one opportunity of the periodic downlink transmission from the downlink beam to the paired downlink beam.

[0227] Aspect 31 is the method of any one of Aspects 23 to 30, further comprising: when the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, switching the transmission of the downlink transmission from the default downlink beam to the paired downlink beam.

[0228] Aspect 32 is the method of any one of Aspects 23 to 31, further comprising: the base station switching the transmission of the downlink transmission from the default downlink beam to the paired downlink beam during the overlap in the time domain.

[0229] Aspect 33 is the method of any one of aspects 23 to 32, further comprising: the base station continuing to use the paired downlink beam to transmit subsequent downlink transmissions after the overlap in the time domain.

[0230] Aspect 34 is a method of any one of Aspects 23 to 33, further comprising: transmitting a signaling to the UE to update the default downlink beam, wherein the base station continues to use the paired downlink beam to transmit subsequent downlink transmissions until the base station transmits the signaling to update the default downlink beam.

[0231] Aspect 35 is the method of any one of Aspects 23 to 34, further comprising: the base station determining, based on a beam failure detection reference signal configuration for a full-duplex communication mode, the paired downlink beam to be used for transmitting the downlink transmission.

[0232] Aspect 36 is the method of any one of Aspects 23 to 35, further comprising: the beam failure detection reference signal configuration indicates the downlink beam paired with the uplink beam used to receive the uplink transmission.

[0233] Aspect 37 is the method of any one of aspects 23 to 36, further comprising: the base station determining, based on a radio link management reference signal configuration for a full-duplex communication mode, the paired downlink beam to be used for transmitting the downlink transmission.

[0234] Aspect 38 is the method of any one of Aspects 23 to 37, further comprising: the radio link management reference signal configuration indicates the downlink beam paired with the uplink beam for receiving the uplink transmission.

[0235] Aspect 39 is the method of any one of Aspects 23 to 38, further comprising: receiving one or more SIM measurements from the UE, and wherein the base station determines the downlink beam paired with the uplink beam for receiving the uplink transmission based on the most recent SIM measurement.

[0236] Aspect 40 is the method of any one of Aspects 23 to 39, further comprising: receiving one or more BM measurements from the UE, and wherein the base station determines the downlink beam paired with the uplink beam for receiving the uplink transmission based on the one or more BM measurements.

[0237] Aspect 41 is a method of any one of Aspects 23 to 40, further comprising: the base station determines the downlink beam paired with the uplink beam used to receive the uplink transmission based on the downlink SSB overlapping with the RACH opportunity in the full-duplex communication mode, wherein the beam associated with the RACH opportunity matches the uplink beam used to receive the uplink transmission.

[0238] Aspect 42 is an apparatus for wireless communication, comprising: at least one processor coupled to a memory and configured to implement the method of any one of aspects 23 to 41.

[0239] Aspect 43 is an apparatus for wireless communication, comprising means for implementing the method of any one of Aspects 23 to 41.

[0240] Aspect 44 is a computer-readable medium storing a computer-executable code, wherein the code, when executed, causes a processor to implement the method of any one of aspects 23 to 41.

Claims

1. A wireless communication method of a user equipment UE, the method comprising: receiving a physical uplink control channel (PUCCH) resource configuration from a base station, the PUCCH resource configuration indicating an uplink beam for transmitting an uplink transmission; identifying a downlink beam paired with the uplink beam used to transmit the uplink transmission, the paired downlink beam being used for full-duplex reception of downlink transmissions from the base station that overlaps in time with transmission of the uplink transmission; as well as Full-duplex communication with the base station is performed by transmitting the uplink transmission using the uplink beam while receiving the downlink transmission using the paired downlink beam.

2. The method of claim 1, wherein: The uplink transmission comprises an uplink control channel.

3. The method of claim 1, wherein: The UE receives downlink control information DCI scheduling the uplink transmission and the downlink transmission for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

4. The method of claim 1, wherein: The PUCCH resource configuration includes a transmission configuration indicator TCI status field, and the UE identifies the paired downlink beam based on the TCI status field.

5. The method of claim 4, wherein: The TCI status field includes a bidirectional TCI status field indicating the uplink beam used to transmit the uplink transmission and the paired downlink beam used for full-duplex reception of the downlink transmission.

6. The method of claim 4, wherein: The PUCCH resource configuration includes: an uplink transmission configuration indicator (TCI) status field indicating the uplink beam used to transmit the uplink transmission, and A downlink TCI status field indicating the paired downlink beam used for full-duplex reception of the downlink transmission.

7. The method of claim 4, further comprising: receiving scheduling information for using a downlink beam to receive a periodic downlink transmission; receiving downlink control information DCI for scheduling the uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission; as well as Reception of the at least one opportunity of the periodic downlink transmission is switched from the downlink beam to the paired downlink beam.

8. The method of claim 4, further comprising: When the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, reception of the downlink transmission is switched from a default downlink beam to the paired downlink beam.

9. The method of claim 8, wherein: The UE switches reception of the downlink transmission from the default downlink beam to the paired downlink beam during an overlap in the time domain, and wherein the UE continues to use the paired downlink beam to receive subsequent downlink transmissions after the overlap in the time domain.

10. The method of claim 9, further comprising: Signaling is received from the base station to update the default downlink beam, wherein the UE continues to use the paired downlink beam to receive subsequent downlink transmissions until the UE receives the signaling to update the default downlink beam.

11. The method of claim 1, wherein: The UE identifies the paired downlink beam for receiving the downlink transmission based on a beam failure detection reference signal configuration for a full-duplex communication mode, and Wherein the beam failure detection reference signal configuration indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

12. The method of claim 1, wherein: The UE identifies the paired downlink beam for full-duplex reception of the downlink transmission based on a radio link management reference signal configuration for a full-duplex communication mode, and Wherein the radio link management reference signal configuration indicates the downlink beam paired with the uplink beam used to transmit the uplink transmission.

13. The method of claim 1, further comprising: performing a self-interference measurement SIM measurement or one or more beam management BM measurements, and Therein, the UE identifies the downlink beam paired with the uplink beam used to transmit the uplink transmission based on a most recent SIM measurement or based on the one or more BM measurements.

14. The method of claim 1, wherein: The UE identifies the downlink beam paired with the uplink beam used to transmit the uplink transmission based on a downlink synchronization signal block SSB overlapping with a random access channel RACH opportunity in a full-duplex communication mode, wherein the beam associated with the RACH opportunity matches the uplink beam used to transmit the uplink transmission.

15. An apparatus for wireless communication of a user equipment UE, comprising: Memory; as well as at least one processor coupled to the memory and configured to: receiving a physical uplink control channel (PUCCH) resource configuration from a base station, the PUCCH resource configuration indicating an uplink beam for transmitting an uplink transmission; identifying a downlink beam paired with the uplink beam used to transmit the uplink transmission, the paired downlink beam being used for full-duplex reception of downlink transmissions from the base station that overlaps in time with transmission of the uplink transmission; as well as Full-duplex communication with the base station is performed by transmitting the uplink transmission using the uplink beam while receiving the downlink transmission using the paired downlink beam.

16. A wireless communication method of a base station, comprising: transmitting a physical uplink control channel (PUCCH) resource configuration to a user equipment (UE), the PUCCH resource configuration indicating an uplink beam for receiving an uplink transmission; determining a downlink beam paired with the uplink beam for receiving the uplink transmission, the paired downlink beam being used for full-duplex transmission of downlink transmissions to the UE that overlaps in time with reception of the uplink transmission; as well as Full-duplex communication with the UE is performed by transmitting the downlink transmission using the paired downlink beam while receiving the uplink transmission using the uplink beam.

17. The method of claim 16, wherein: The uplink transmission comprises an uplink control channel.

18. The method of claim 16, wherein: The base station transmits downlink control information DCI scheduling the uplink transmission and the downlink transmission for full-duplex communication, and wherein the DCI indicates the downlink beam paired with the uplink beam for receiving the uplink transmission.

19. The method of claim 16, wherein: The PUCCH resource configuration includes a transmission configuration indicator TCI status field, and the base station determines the paired downlink beam based on the TCI status field.

20. The method of claim 19, wherein: The TCI status field includes a bidirectional TCI status field indicating the uplink beam for receiving the uplink transmission and the paired downlink beam for full-duplex transmission of the downlink transmission.

21. The method of claim 19, wherein: The PUCCH resource configuration includes: an uplink transmission configuration indicator (TCI) status field indicating the uplink beam used to receive the uplink transmission, and A downlink TCI status field indicating the paired downlink beam used for full-duplex transmission of the downlink transmission.

22. The method of claim 19, further comprising: transmitting, to the UE, scheduling information to use a downlink beam to receive a periodic downlink transmission; transmitting downlink control information DCI for scheduling the uplink transmission based on the PUCCH resource configuration, the uplink transmission overlapping in time with at least one opportunity of the periodic downlink transmission; as well as Transmission of the at least one opportunity of the periodic downlink transmission is switched from the downlink beam to the paired downlink beam.

23. The method of claim 19, further comprising: When the UE is scheduled to transmit one or more uplink transmissions that overlap with the downlink transmission in the time domain, transmission of the downlink transmission is switched from a default downlink beam to the paired downlink beam.

24. The method of claim 23, wherein: The base station switches transmission of the downlink transmission from the default downlink beam to the paired downlink beam during an overlap in the time domain, and wherein the base station continues to use the paired downlink beam to transmit subsequent downlink transmissions after the overlap in the time domain.

25. The method of claim 24, further comprising: Signaling is transmitted to the UE to update the default downlink beam, wherein the base station continues to use the paired downlink beam to transmit subsequent downlink transmissions until the base station transmits the signaling to update the default downlink beam.

26. The method of claim 16, wherein: The base station determines the paired downlink beam to be used for transmitting the downlink transmission based on a beam failure detection reference signal configuration for a full-duplex communication mode, and wherein the beam failure detection reference signal configuration indicates the downlink beam paired with the uplink beam for receiving the uplink transmission.

27. The method of claim 16, wherein: The base station determines the paired downlink beam to be used for transmitting the downlink transmission based on a radio link management reference signal configuration for a full-duplex communication mode, and wherein the radio link management reference signal configuration indicates the downlink beam paired with the uplink beam for receiving the uplink transmission.

28. The method of claim 16, further comprising: receiving one or more self-interference measurements (SIM) from the UE or one or more beam management (BM) measurements from the UE, and Therein, the base station determines the downlink beam to be paired with the uplink beam for receiving the uplink transmission based on a most recent SIM measurement or based on the one or more BM measurements.

29. The method of claim 16, wherein: The base station determines the downlink beam paired with the uplink beam for receiving the uplink transmission based on a downlink synchronization signal block SSB overlapping with a random access channel RACH opportunity in a full-duplex communication mode, wherein the beam associated with the RACH opportunity matches the uplink beam for receiving the uplink transmission.

30. An apparatus for wireless communication of a base station, comprising: Memory; as well as at least one processor coupled to the memory and configured to: transmitting a physical uplink control channel (PUCCH) resource configuration to a user equipment (UE), the PUCCH resource configuration indicating an uplink beam for receiving an uplink transmission; determining a downlink beam paired with the uplink beam for receiving the uplink transmission, the paired downlink beam being used for full-duplex transmission of downlink transmissions to the UE that overlaps in time with reception of the uplink transmission; as well as Full-duplex communication with the UE is performed by transmitting the downlink transmission using the paired downlink beam while receiving the uplink transmission using the uplink beam.

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