Activation of joint DL / UL TCI state for MDCI

Abstract

Aspects presented herein relate to methods and devices, including apparatuses, for wireless communication, e.g., UEs and / or TRPs or base stations. In one aspect, an apparatus can receive, from a TRP, a MAC-CE activating a subset of configured joint DL and UL TCI states, each activated joint DL and UL TCI state indicating a common beam for communication in DL and UL, the MAC-CE indicating a CORESET pool ID associated with a set of CORESETs. Further, the apparatus can communicate with the TRP through DL and UL scheduled via one or more CORESETs of the set of CORESETs associated with the CORESET pool ID based on the activated joint DL and UL TCI states.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefits of the following applications: International Patent Application No. PCT / CN2020 / 114177, filed on September 9, 2020, entitled “METHODS AND APPARATUS FOR ACTIVATION OF JOINT DL / UL TCI STATE FOR MDCI”, and International Patent Application No. PCT / CN2020 / 114161, filed on September 9, 2020, entitled “ACTIVATION OF JOINT DL / UL TCI STATE FOR SINGLE DCI AND MULTIPLE TRPS”, each of which is expressly incorporated herein by reference in its entirety. Technical Field

[0003] In summary, this disclosure relates to communication systems, and more specifically, to the use of a Media Access Control (MAC) Control Element (CE) (MAC-CE) in a wireless communication system to activate the Joint Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) state. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. 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.

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

[0006] The following provides a brief overview of one or more aspects to offer a basic understanding of such aspects. This overview is not a comprehensive summary of all anticipated aspects, and is neither intended to identify key or important elements of all aspects, nor to depict 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 the more detailed descriptions that follow.

[0007] In one aspect of this disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus may receive a Media Access Control (MAC) control element (CE) (MAC-CE) from a Transmit Receive Point (TRP), the MAC-CE activating a configured set of combined downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states, each activated combined DL and UL TCI state indicating a common beam for communication in the DL and UL, each activated DL TCI state indicating a beam for communication in the DL, each activated UL TCI state indicating a beam for communication in the UL, and the MAC-CE indicating a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). The device may also receive a configuration indicating which of at least one of PDCCH, PDSCH, CSI-RS, or PRS for DL, scheduled by a CORESET associated with the CORESET pool ID, applies to each of the activated joint DL and UL TCI state, the activated DLTCI state, or the activated UL TCI state, and indicating which of at least one of PUCCH, PUSCH, SRS, or PRACH for UL, scheduled by a CORESET associated with the CORESET pool ID, applies to each of the activated joint DL and UL TCI states. The device may also receive downlink control information (DCI) in a CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state associated with the CORESET pool ID. Additionally, the device may receive indications for DL ​​and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID, wherein the DL and UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID are determined based on the received indications.The apparatus can also determine the DL and UL resources applied to the communication by one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state corresponding to the index of the TCI code point indicated by the DCI, wherein the determined DL and UL resources are scheduled by the one or more CORESETs associated with the CORESET pool ID. The apparatus can also communicate with the TRP via DL and UL resources scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state.

[0008] In another aspect of this disclosure, a method, computer-readable medium, and apparatus are provided. The apparatus may be a Transmit / Receive Point (TRP) or a base station. The apparatus may transmit a Media Access Control (MAC) Control Element (CE) (MAC-CE) to a User Equipment (UE), the MAC-CE activating a configured set of Joint Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states, each of the activated Joint DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated DL TCI states indicating a beam for communication in the DL, each of the activated UL TCI states indicating a beam for communication in the UL, and the MAC-CE indicating a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). The device may also transmit a configuration indicating which of at least one of PDCCH, PDSCH, CSI-RS, or PRS for DL, scheduled by the CORESET associated with the CORESET pool ID, applies to each of the activated joint DL and UL TCI states, and which of at least one of PUCCH, PUSCH, SRS, or PRACH for UL, scheduled by the CORESET associated with the CORESET pool ID, applies to each of the activated joint DL and UL TCI states. The device may also transmit downlink control information (DCI) in the CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states associated with the CORESET pool ID. Furthermore, the device can send indications for DL ​​and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID, wherein the DL and UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID are based on the sent indications. The device can also communicate with the UE via DL and UL resources scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state.

[0009] To achieve the foregoing and related objectives, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and drawings set forth certain illustrative features of one or more aspects in detail. However, these features indicate only a few of the various ways in which the principles of each aspect can be employed, and the description is intended to include all such aspects and their equivalents. Attached Figure Description

[0010] Figure 1 This is a schematic diagram illustrating an example of a wireless communication system and an access network.

[0011] Figure 2A This is a schematic diagram illustrating an example of the first frame of various aspects according to this disclosure.

[0012] Figure 2B This is a schematic diagram illustrating an example of a DL channel within a subframe according to various aspects of this disclosure.

[0013] Figure 2C This is a schematic diagram illustrating an example of a second frame according to various aspects of this disclosure.

[0014] Figure 2D This is a schematic diagram illustrating an example of a UL channel within a subframe according to various aspects of this disclosure.

[0015] Figure 3 This is a schematic diagram illustrating an example of a base station and user equipment (UE) in an access network.

[0016] Figure 4 This is a call flow diagram illustrating the activation of a joint DL / UL TCI state associated with a UE having multiple TRPs' DL / ULs via a single scheduling DCI from a TRP.

[0017] Figure 5 This is a schematic diagram illustrating the MAC-CE used to activate the joint DL / UL TCI status and DL / UL communication with multiple TRPs.

[0018] Figure 6 This is a schematic diagram illustrating an example MAC-CE.

[0019] Figure 7 This is a schematic diagram illustrating an example communication between the UE and the TRP or base station.

[0020] Figure 8 This is a flowchart of a wireless communication method.

[0021] Figure 9 This is a flowchart of a wireless communication method.

[0022] Figure 10This is a flowchart of a wireless communication method.

[0023] Figure 11 This is a flowchart of a wireless communication method.

[0024] Figure 12 This is a schematic diagram illustrating an example of the hardware implementation used for the example device.

[0025] Figure 13 This is a schematic diagram illustrating an example of the hardware implementation used for the example device.

[0026] Figure 14 This is a flowchart of a wireless communication method.

[0027] Figure 15 This is a flowchart of a wireless communication method.

[0028] Figure 16 This is a flowchart of a wireless communication method.

[0029] Figure 17 This is a schematic diagram illustrating an example of the hardware implementation used for the example device.

[0030] Figure 18 This is a schematic diagram illustrating an example of the hardware implementation used for the example device. Detailed Implementation

[0031] The detailed description below, taken in conjunction with the accompanying drawings, is intended as a description of various configurations and not as representing only the configurations in which the concepts described herein can be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some cases, well-known structures and components are shown in the form of block diagrams in order to avoid obscuring such concepts.

[0032] Several aspects of a telecommunications system will now be described with reference to various apparatuses and methods. These apparatuses and methods will be described in detail below and illustrated in the accompanying drawings by way of various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as “elements”). These elements can 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 system as a whole.

[0033] For example, an element, any part of an element, or any combination of elements can be implemented as a "processing system" including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, system-on-a-chip (SoCs), baseband processors, field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout this disclosure. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc.

[0034] Accordingly, in one or more example embodiments, the described functionality can be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality can be stored or encoded as one or more instructions or code on a computer-readable medium. A computer-readable medium includes a computer storage medium. The storage medium can be any available medium accessible by a computer. By way of example, and not limitation, such a computer-readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of computer-readable media of the types described above, or any other medium that can be used to store computer-executable code accessible by a computer in the form of instructions or data structures.

[0035] Figure 1 This is a schematic diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a user interface unit (UE) 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). Base station 102 may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Macro cells include base stations. Small cells include femtocells, picocells, and microcells.

[0036] Base station 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with EPC 160 via a first backhaul link 132 (e.g., S1 interface). Base station 102 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) can interface with core network 190 via a second backhaul link 184. Among other functions, base station 102 can also perform one or more of the following functions: transmission 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), user and device tracking, RAN information management (RIM), paging, location, and delivery of warning messages. Base station 102 can communicate directly or indirectly with each other (e.g., via EPC 160 or core network 190) via third backhaul link 134 (e.g., X2 interface). First backhaul link 132, second backhaul link 184 and third backhaul link 134 can be wired or wireless.

[0037] Base station 102 can wirelessly communicate with UE 104. Each base station in base station 102 can provide communication coverage for a corresponding geographic coverage area 110. Overlapping geographic coverage areas 110 may exist. For example, small cell 102' may have a coverage area 110' that overlaps with the coverage areas 110 of one or more macro base stations 102. A network that includes both small cells and macro cells can be referred to as a heterogeneous network. The heterogeneous network may also include evolved home node B (eNB) (HeNB), which can provide services to a restricted group referred to as a closed subscriber group (CSG). The communication link 120 between base station 102 and UE 104 may include uplink (UL) (also referred to as reverse link) transmission from UE 104 to base station 102 and / or downlink (DL) (also referred to as forward link) transmission from base station 102 to UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna techniques, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be via one or more carriers. Base station 102 / UE 104 may use spectrum allocated in carrier aggregation for a total of up to Y x MHz (x component carriers) for transmission in each direction, with a bandwidth of up to Y MHz per carrier (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.). Carriers may be adjacent to each other or may not be adjacent to each other. Carrier allocation may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). Component carriers may include primary component carriers and one or more secondary component carriers. The primary component carrier may be referred to as the primary cell (PCell), and the secondary component carrier may be referred to as the secondary cell (SCell).

[0038] Some UEs 104 can communicate with each other using device-to-device (D2D) communication link 158. D2D communication link 158 can use DL / UL WWAN spectrum. D2D communication link 158 can use one or more sideline channels, such as the Physical Sideline Broadcast Channel (PSBCH), Physical Sideline Discovery Channel (PSDCH), Physical Sideline Shared Channel (PSSCH), and Physical Sideline Control Channel (PSCCH). D2D communication can be achieved through a wide variety of wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

[0039] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154, for example, in an unlicensed spectrum such as 5 GHz. When communicating in unlicensed spectrum, the STA 152 / AP 150 may perform a free channel assessment (CCA) before communication to determine whether the channel is available.

[0040] Small cell 102' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 102' can employ NR and use the same unlicensed spectrum (e.g., 5 GHz, etc.) as used by Wi-Fi AP 150. Small cell 102' employing NR in unlicensed spectrum can improve coverage of the access network and / or increase the capacity of the access network.

[0041] The electromagnetic spectrum is often subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, the two initial operating bands have been designated as frequency range names FR1 (410MHz-7.125GHz) and FR2 (24.25GHz-52.6GHz). The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Although a portion of FR1 is greater than 6GHz, FR1 is often (interchangeably) referred to as the "below 6GHz" band in various documents and articles. Similar naming issues sometimes arise regarding FR2, although it differs from the extremely high frequency (EHF) band (30GHz-300GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU), FR2 is often (interchangeably) referred to as the "millimeter wave" band in documents and articles.

[0042] In light of the above, unless otherwise specifically stated, it should be understood that, if used herein, the term "below 6 GHz" and the like can broadly refer to frequencies that are less than 6 GHz, within FR1, or may include intermediate frequency band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that, if used herein, the term "millimeter wave" and the like can broadly refer to frequencies that may include intermediate frequency band frequencies, within FR2, or within the EHF band.

[0043] Base station 102 (whether a small cell 102' or a large cell (e.g., a macro base station)) may include and / or be referred to as an eNB, gNodeB (gNB), or another type of base station. Some base stations (such as gNB 180) may operate in conventional sub-6 GHz spectrum, millimeter wave frequencies, and / or near-millimeter wave frequencies to communicate with UE 104. When gNB 180 operates in millimeter wave 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.

[0044] Base station 180 may transmit beamformed signals to UE 104 in one or more transmit directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182'. UE 104 may also transmit beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the optimal receive and transmit directions for each of base station 180 / UE 104. The transmit and receive directions for base station 180 may be the same or different. The transmit and receive directions for UE 104 may be the same or different.

[0045] EPC 160 may include Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, Multimedia Broadcast Multicast Service (MBMS) Gateway 168, Broadcast Multicast Service Center (BM-SC) 170, and Packet Data Network (PDN) Gateway 172. MME 162 may communicate with Home Subscriber Server (HSS) 174. MME 162 is the control node that handles signaling between UE 104 and EPC 160. Typically, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which is itself connected to PDN Gateway 172. PDN Gateway 172 provides IP address allocation and other functions to the UE. PDN Gateway 172 and BM-SC 170 are connected to IP Service 176. IP Service 176 may include the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and / or other IP services. The BM-SC170 provides functions for MBMS user service provisioning and delivery. The BM-SC 170 can serve as an entry point for MBMS transmissions to content providers, authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and schedule MBMS transmissions. The MBMS gateway 168 can distribute MBMS services to base stations 102 belonging to areas of a Multicast-Broadcast Single Frequency Network (MBSFN) that broadcasts specific services, and can be responsible for session management (start / stop) and collecting billing information related to eMBMS.

[0046] The core network 190 may include Access and Mobility Management Functions (AMF) 192, other AMFs 193, Session Management Functions (SMF) 194, and User Plane Functions (UPF) 195. AMF 192 can communicate with Unified Data Management (UDM) 196. AMF 192 is the control node that processes signaling between UE 104 and the core network 190. Typically, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transmitted via UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 connects to IP services 197. IP services 197 may include the Internet, intranets, IP Multimedia Subsystem (IMS), Packet Switched (PS) Streaming (PSS) services, and / or other IP services.

[0047] Base stations may include and / or be referred to as gNB, Node B, eNB, access point, base transceiver, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), Transmitter Receiver Point (TRP), or some other suitable term. Base station 102 provides access to EPC 160 or core network 190 for UE 104. Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radio units, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet devices, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional devices. Some UE 104 devices may be referred to as IoT devices (e.g., parking meters, air pumps, ovens, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, mobile station, user station, mobile unit, user unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile user station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.

[0048] Refer again Figure 1In some aspects, UE 104 may include a receiving component 198 configured to receive a Media Access Control (MAC) Control Element (CE) (MAC-CE) from a Transmit Receive Point (TRP). The MAC-CE activates a subset of configured Joint Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, configured DL TCI states, or configured ULTCI states. Each of the activated Joint DL and UL TCI states indicates a common beam for communication in the DL and UL. Each of the activated DL TCI states indicates a beam for communication in the DL. Each of the activated UL TCI states indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). The receiving component 198 can also be configured to receive a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS for a DL scheduled by a CORESET associated with the CORESET pool ID applies to each of the activated joint DL and UL TCI states, the activated DL TCI state, and the activated UL TCI state, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH for a UL scheduled by a CORESET associated with the CORESET pool ID applies to each of the activated joint DL and UL TCI states. The receiving component 198 can also be configured to receive downlink control information (DCI) in a CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state associated with the CORESET pool ID. The receiving component 198 can also be configured to receive indications of DL and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID, wherein the DL and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID are determined based on the received indications. The receiving component 198 can also be configured to determine the DL and UL resources for communication applied to one of the following: an activated joint DL and UL TCI state, an activated DL TCI state, or an activated UL TCI state corresponding to an index of a TCI code point indicated via a DCI, wherein the determined DL and UL resources are scheduled by one or more CORESETs associated with a CORESET pool ID.The receiving component 198 can also be configured to communicate with the TRP via DL and UL scheduled through one or more CORESETs in a CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI status, the activated DL TCI status, or the activated UL TCI status.

[0049] Refer again Figure 1 In some aspects, base station 180 may include a transmitting component 199 configured to transmit a Media Access Control (MAC) Control Element (CE) (MAC-CE) to a user equipment (UE). The MAC-CE activates a subset of configured joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, each activated joint DL and ULTCI state indicating a common beam for communication in the DL and UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of control resource sets (CORESET). The transmitting component 199 can also be configured to transmit a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, and which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states. The transmitting component 199 can also be configured to transmit downlink control information (DCI) in the CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states associated with the CORESET pool ID. The transmitting component 199 can also be configured to transmit indications of DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID are based on the transmitted indications. The transmitting component 199 can also be configured to communicate with the UE via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state.

[0050] Although the following description may focus on 5G NR, the concepts described herein can be applied to other similar areas such as LTE, LTE-A, CDMA, GSM and other wireless technologies.

[0051] Figure 2A This is a schematic diagram 200 showing an example of the first subframe within a 5G NR frame structure. Figure 2B This is a schematic diagram 230 showing an example of a DL channel within a 5G NR subframe. Figure 2C This is a schematic diagram 250 showing an example of a second subframe within a 5G NR frame structure. Figure 2D This is a schematic diagram 280 illustrating an example of a UL channel within a 5G NR subframe. The 5G NR frame structure can be Frequency Division Duplex (FDD) (where, for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to either DL or UL), or Time Division Duplex (TDD) (where, for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to both DL and UL). In the process of... Figure 2A , 2C In the provided example, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all of which are UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are all DL and all UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. The UE is configured with a slot format via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured via Radio Resource Control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0052] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10 ms) can be divided into 10 equal-sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include micro-time 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, while for time slot configuration 1, each time slot may include 7 symbols. Symbols on the DL can be Cyclic Prefix (CP) OFDM (CP-OFDM) symbols. Symbols on the UL can be CP-OFDM symbols (for high-throughput scenarios) or Discrete Fourier Transform (DFT) Extended OFDM (DFT-s-OFDM) symbols (also known as Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols) (for power-constrained scenarios; limited to single-stream transmission). The number of time slots within a subframe can be based on the time slot configuration and the numbering scheme. For slot configuration 0, different digital schemes μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For slot configuration 1, different digital schemes 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Correspondingly, for slot configuration 0 and digital scheme μ, there are 14 symbols / slot and 2... μ Each time slot / subframe. Subcarrier spacing and symbol length / duration are functions of the digital scheme. Subcarrier spacing can be equal to 2. μ *15kHz, where μ is the digital scheme from 0 to 4. Therefore, digital scheme μ = 0 has a subcarrier spacing of 15kHz, and digital scheme μ = 4 has a subcarrier spacing of 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figures 2A-2D Examples are provided for slot configuration 0 (14 symbols per slot) and digital scheme μ=2 (4 slots per subframe). The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, one or more distinct bandwidth portions (BWPs) of frequency division multiplexing can exist (see [link to relevant documentation]). Figure 2B Each BWP can have a specific digital scheme.

[0053] A resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also known as a physical RB (PRB)), which consists of 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0054] like Figure 2AAs shown, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as R for a specific configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). The RS may also include beam management RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS).

[0055] Figure 2B Examples of various DL channels within a subframe of a frame are shown. The 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 six RE Groups (REGs), each REG comprising 12 consecutive REs within an OFDM symbol of an RB. A PDCCH within a BWP can 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 PDCCH monitoring on a CORESET, where PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs can span the channel bandwidth at larger and / or lower frequencies. The Primary Synchronization Signal (PSS) can be within symbol 2 of a specific subframe of the frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identification. The Secondary Synchronization Signal (SSS) can be within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the Physical Layer Cell Identifier Group Number and radio frame timing. Based on the Physical Layer Identifier and Physical Layer Cell Identifier 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 logically be grouped with the PSS and SSS to form a Synchronization Signal (SS) / PBCH block (also known as an SS block (SSB)). The MIB provides the number of RBs and the System Frame Number (SFN) in the system bandwidth. The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted via the PBCH (such as System Information Block (SIB)), and paging messages.

[0056] like Figure 2CAs shown, some REs in the REs carry DM-RS for channel estimation at the base station (indicated as R for a specific configuration, but other DM-RS configurations are possible). The UE can transmit DM-RS for the Physical Uplink Control Channel (PUCCH) and DM-RS for the Physical Uplink Shared Channel (PUSCH). The PUSCH DM-RS can be transmitted in the first one or two symbols preceding the PUSCH. The PUCCH DM-RS can be transmitted in different configurations depending on whether a short or long PUCCH is transmitted and the specific PUCCH format used. The UE can transmit a Sounding Reference Signal (SRS). The SRS can be transmitted in the last symbol of a subframe. The SRS can have a comb structure, and the UE can transmit the SRS on one of the combs. The SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0057] Figure 2D Examples of various UL channels within a subframe of a frame are shown. The PUCCH can be positioned as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and hybrid automatic repeat request (HARQ) ACK / NACK feedback. The PUSCH carries data and may also be used to carry buffer status reports (BSR), power headroom reports (PHR), and / or UCI.

[0058] Figure 3This is a block diagram illustrating communication between base station 310 and UE 350 in the access network. In the DL, IP packets from EPC 160 can be provided to controller / processor 375. Controller / processor 375 implements Layer 3 and Layer 2 functions. Layer 3 includes the Radio Resource Control (RRC) layer, and Layer 2 includes the Serving Data Adaptation Protocol (SDAP) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and Media Access Control (MAC) layer. The controller / processor 375 provides: RRC layer functions associated with: broadcasting system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-Radio Access Technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with: header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with: transmission of upper-layer packet data units (PDUs), error correction via ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with: mapping between logical channels and transport channels, multiplexing of MAC SDUs to transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority handling, and logical channel prioritization.

[0059] Transmit (TX) processor 316 and receive (RX) processor 370 implement Layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection of the transport channel, forward error correction (FEC) encoding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. TX processor 316 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-order quadrature amplitude modulation (M-QAM)). The encoded and modulated symbols can then be divided into parallel streams. Each stream can then be mapped to OFDM subcarriers, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then combined 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 channel estimator 374 can be used to determine coding and modulation schemes and for spatial processing. The channel estimates can be derived from reference signals transmitted by UE 350 and / or channel condition feedback. Each spatial stream can then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX can use the corresponding spatial stream to modulate an RF carrier for transmission.

[0060] At UE 350, each receiver 354RX receives signals via its corresponding antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides that information to the receive (RX) processor 356. The TX processor 368 and RX processor 356 implement Layer 1 functions associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for UE 350. If multiple spatial streams are destined for UE 350, they can be combined by the RX processor 356 into a single OFDM symbol stream. The RX processor 356 then uses a Fast Fourier Transform (FFT) to transform the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal consists of a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, along with a reference signal, are recovered and demodulated by determining the most probable signal constellation points transmitted by base station 310. These soft decisions can be based on a channel estimate calculated by channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally transmitted by base station 310 on the physical channel. The data and control signals are then provided to controller / processor 359, which implements Layer 3 and Layer 2 functions.

[0061] The controller / processor 359 may be associated with a memory 360 that stores program code and data. The memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels 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 operation.

[0062] Similar to the functions described in conjunction with DL transmissions performed by base station 310, controller / processor 359 provides: RRC layer functions associated with: system information (e.g., MIB, SIB) acquisition, RRC connection and measurement reporting; PDCP layer functions associated with: header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with: transmission of upper-layer PDUs, error correction via ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with: mapping between logical channels and transport channels, multiplexing of MAC SDUs to TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority processing, and logical channel prioritization.

[0063] The channel estimate derived by the channel estimator 358 from the reference signal or feedback transmitted by the base station 310 can be used by the TX processor 368 to select appropriate coding and modulation schemes, as well as to facilitate spatial processing. The spatial stream generated by the TX processor 368 can be provided to different antennas 352 via a separate transmitter 354TX. Each transmitter 354TX can use the corresponding spatial stream to modulate the RF carrier for transmission.

[0064] UL transmission at base station 310 is handled in a manner similar to that described for the receiver function integrated at UE 350. Each receiver 318RX receives signals via its corresponding antenna 320. Each receiver 318RX recovers the information modulated onto the RF carrier and provides the information to the RX processor 370.

[0065] The controller / processor 375 may be associated with a memory 376 that stores program code and data. The memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport channel and the logical channel to recover IP packets from the UE 350. 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 operation.

[0066] At least one of the TX processor 368, RX processor 356, and controller / processor 359 can be configured to combine Figure 1 The 198 was used to implement various aspects.

[0067] At least one of the TX processor 316, RX processor 370, and controller / processor 375 can be configured to combine Figure 1 The 199 was used to implement various aspects.

[0068] In some aspects of wireless communication, it may be beneficial to provide enhancements to multi-beam operation (primarily targeting frequency range 2 (FR2), but also applicable to frequency range 1 (FR1)). To enhance multi-beam operation, features can be identified and specified to facilitate more efficient DL / UL beam management (lower latency and overhead) to support higher intra-cell mobility and inter-cell mobility centered on L1 / L2, and / or a greater number of configured TCI states. Common beams for data and control transmission / reception for DL ​​and UL (particularly for in-band carrier aggregation (CA)) can be specified to provide a unified TCI framework for DL ​​and UL beam indication. Enhancements to the signaling mechanisms used for the above features can be provided to leverage increased use of dynamic control signaling (as opposed to RRC) to improve latency and efficiency. Furthermore, features can be identified and specified to facilitate UL beam indication based on a unified TCI framework for UL fast panel selection, for UEs equipped with multiple panels (considering the mitigation of UL coverage loss due to Maximum Permissible Exposure (MPE)).

[0069] Additionally, a unified TCI framework for DL ​​and UL beam indication may be required. A primary use case could be signaling a common beam for multiple DL and UL resources to save on both beam indication and overhead latency. Common beam indication can be signaled via a joint DL / UL TCI state. The activation of the joint DL / UL TCI state in the case of a single DCI scheduler and multiple TRPs is described below.

[0070] Figure 4 This is a call flow diagram 400 illustrating the activation of a joint DL / UL TCI state associated with a UE having multiple TRPs 406, 408, 410 of base station (BS) 404, via a single scheduling DCI 414 from a TRP 406. UE 402 receives from TRP 406 a MAC-CE 412 activating at least one set of joint DL / UL TCI states for multiple TRPs (e.g., two or more of 406, 408, 410). In one example, the multiple TRPs include TRP 406 and at least one additional TRP 408, 410. Each activated joint DL / UL TCI state indicates a common beam (receive (Rx) / transmit (Tx) beam) for communication in the DL / UL. UE 402 receives from TRP 406 one or more DCIs 414 activating communication with multiple TRPs 406, 408, and / or 410 via the DL / UL. UE 402 communicates with multiple TRPs 406, 408, and / or 410 via scheduled DL / UL based on the activated joint DL / UL TCI state 416. Although TRP 406 is used as an example here, MAC-CE 412 or DCI 414 can be sent from any other TRP associated with BS 404 (e.g., TRP 408 or 410).

[0071] Figure 5 This is a schematic diagram 500 illustrating a MAC-CE 412 used to activate the joint DL / UL TCI state and DL / UL communication 416 with multiple TRPs 406, 408. The MAC-CE 412 can be a UE-specific MAC-CE for enhanced TCI state activation / deactivation, transmitted on the PDSCH from BS 404 to UE 402. Enhanced TCI state activation / deactivation for the UE-specific MAC-CE is identified by the MAC PDU sub-header. The MAC-CE 412 can have a variable-size bitmap including a serving cell ID field, a BWP ID field, and a C... i Fields, TCI status ID i,jThe field and the reserved (R) field. In the case of carrier aggregation (CA), the serving cell ID can indicate the identifier of the serving cell to which MAC-CE 412 is applied. MAC-CE 412 can activate the TCI state for any of the data channels (such as PDSCH, PUSCH) or control channels (such as control resource sets (CORESET), PUCCH) or RS signals (such as CSI-RS and SRS) for UE 412. For example, the length of this field can be 5 bits. The BWP ID indicates the DL BWP to which MAC-CE 412 is applied as a code point. For example, the length of the BWP ID field can be 2 bits. i This field indicates whether a TCI state ID exists for the i-th TCI code point (i = 0, ..., N). i,2 An eight-bit byte. If this field is set to "1", then a TCI status ID is present. i,2 The eight-bit byte. If this field is set to "0", there is no TCI status ID. i,2 Eight-bit bytes. TCI Status ID i,j The field indicates the TCI status, where i is the index of the code point, and the TCI status ID is... i,j This represents the j-th TCI state indicated for the i-th code point. The TCI state is mapped to the TCI code point by which it has the TCI state ID. i,j The order of the field is determined by its position among all TCI code points in the field set, i.e., it has a TCI status ID. 0,1 and TCI status ID 0,2 The first TCI code point is mapped to code point value 0, which has a TCI state ID. 1,1 and TCI status ID 1,2 The second TCI code point is mapped to code point value 1, and so on. Based on C i Field indication, TCI status ID i,2 This can be optional. The maximum number of activated TCI code points can be 8 (correspondingly, N≤7), and the maximum number of TCI states mapped to TCI code points can be 2. In one configuration, the maximum number of TCI states mapped to TCI code points can be greater than 2. When the number of TCI states mapped to TCI code points is M>2 (TCI state IDs...), this is considered an optional feature. i,m When m = 1, ..., M, the number of TCI code points that can exist is M-1C. i The fields indicate whether a TCI status ID exists. i,m Each of them, where m = 2, ..., M. The R field is a reserved bit that can be set to "0".

[0072] In the case of multiple TRPs based on a single DCI, a TRP can schedule DL reception or UL transmission with each of the multiple TRPs simultaneously by sending a single scheduling DCI. In this case, the corresponding activation MAC-CE can activate at least one set of at least one joint DL / UL TCI states. At least in the case of a single activated set, each of the multiple activated joint DL / UL TCI states can be sequentially applied to the DL reception or UL transmission associated with each of the multiple scheduled TRPs. For example, if the MAC-CE activates set 0 with two joint DL / UL TCI states, the two joint TCI states are mapped one-to-one to the two TRPs scheduled by all scheduling DCIs, where the channel type or resource for DL ​​reception or UL transmission of each scheduled TRP is dynamically indicated in each scheduling DCI. The channel type or resource for DL ​​reception associated with a TRP can be such as PDSCH, PDCCH, COREST, CSI-RS, and the channel type or resource for UL transmission associated with a TRP can be such as PUSCH, PUCCH, SRS, or PRACH. Therefore, each scheduling DCI may not have a TCI code point field and may not need to specify the joint TCI state used for the channel type or resources of DL reception or UL transmission for each scheduled TRP. The resources used for DL ​​reception or UL transmission with multiple scheduled TRPs can be frequency-division multiplexed (FDM), time-division multiplexed (TDM), or space-division multiplexed (SDM), which can be dynamically indicated in each scheduling DCI. For example, a first scheduling DCI schedules two FDM PDSCHs and two TDM PUCCHs associated with two TRPs, and a second scheduling DCI schedules two TDM PUSCHs associated with two TRPs. For the two scheduling DCIs, the two joint TCI states in set 0 activated by MAC-CE can be applied separately to the resources allocated for DL ​​reception or UL transmission associated with the two TRPs. For example, a first joint TCI state can be applied to the first PDSCH in two FDM-transmitted PDSCHs, the first PUCCH in two TDM-transmitted PUCCHs, and the first PUSCH in two TDM-transmitted PUSCHs; similarly, a second joint TCI state can be applied to the second PDSCH in two FDM-transmitted PDSCHs, the second PUCCH in two TDM-transmitted PUCCHs, and the second PUSCH in two TDM-transmitted PUSCHs. The mapping between the joint TCI state and the resource associated with each TRP for DL ​​reception or UL transmission can be determined in the specification (i.e., predetermined) or dynamically determined by BS 404 via RRC / MAC-CE / DCI.

[0073] If MAC-CE activates multiple joint TCI state sets (e.g., N+1 sets and N>0), the DCI can further indicate a TCI code point mapped to one of the multiple joint TCI state sets. In a first configuration, the indicated TCI code point can be used for resources received by DL or transmitted by UL scheduled by the same DCI indicating the TCI code point. For example, the first / second joint TCI state can be applied to the first / second PDSCH and the first / second PUCCH scheduled by that DCI, respectively. In a second configuration, the indicated TCI code point can be used for DL ​​received or UL transmitted by all following scheduling DCIs. For example, the first DCI can indicate a TCI code point mapped to a set of first and second joint TCI states, and the first / second joint TCI state can be applied to resources received by DL or transmitted by UL for the first / second TRP scheduled by all scheduling DCIs following the first DCI. Within a plurality of TCI code points corresponding to a plurality of activated joint DL / UL TCI state sets, a TCI code point (e.g., a TCI code point with the lowest / highest code point ID) can be defined to indicate the default common beam set (at least when no DCI indicates a TCI code point).

[0074] Refer again Figure 4 , 5 As discussed above, for multiple TRPs based on a single DCI, a TRP can schedule DL / UL communication 416 with each of the multiple TRPs simultaneously by sending a single scheduling DCI 414. In this case, the corresponding activation MAC-CE 412 can activate at least one set of at least one joint DL / UL TCI states (e.g., set 0 C0). At least in the case of a single activated set, each of the multiple activated joint DL / UL TCI states can be sequentially applied to the scheduled DL / UL communication associated with each of the multiple scheduled TRPs. For example, if MAC-CE 412 activates two joint DL / UL TCI states (i.e., TCI state IDs),... 0,1 and TCI status ID 0,2 If the 0th set C0 of the MAC-CE is active, then the two joint DL / UL TCI states can be mapped one-to-one to two TRPs scheduled by all scheduling DCIs 414, where the channel type / resource for DL ​​reception or UL transmission of each scheduled TRP is dynamically indicated in each scheduling DCI 414. For another example, if MAC-CE is active on the i-th set (see [link to DCI 414]), then the two joint DL / UL TCI states can be mapped one-to-one to two TRPs scheduled by all scheduling DCIs 414, where the channel type / resource for DL ​​reception or UL transmission of each scheduled TRP is dynamically indicated in each scheduling DCI 414. Figure 5 ), where 0≤i≤N, then it is related to the TCI state ID. i,1(The associated joint TCI state, which indicates the common beam direction 502 used for receiving / transmitting beams, can be used to receive one or more of the scheduled PDCCH, PDSCH, CSI-RS, or Positioning Reference Signal (PRS) from TRP 406, and to transmit one or more of the scheduled PUCCH, PUSCH, SRS, or Physical Random Access Channel (PRACH) to TRP 406, and is associated with the TCI state ID. i,2 The associated joint TCI state (indicating the common beam direction 504 for receiving / transmitting beams) can be used to receive one or more of the scheduled PDCCH, PDSCH, CSI-RS, or PRS from TRP 408, and to transmit one or more of the scheduled PUCCH, PUSCH, SRS, or PRACH to TRP 408. Resources used for DL ​​reception or UL transmission with multiple scheduled TRPs can be FDM 506, TDM 508, or SDM 510, which can be dynamically indicated in each scheduling DCI 414. For example, a first scheduling DCI 414 can schedule two FDM-based PDSCHs and two TDM-based PUCCHs associated with two TRPs 406, 408, and a second scheduling DCI 414 can schedule two TDM-based PUSCHs associated with the same two TRPs 406, 408. Assuming MAC-CE activates the i-th set, then for two scheduling DCIs 414, the two joint DL / UL TCI states in the i-th set activated by MAC-CE 412 can be applied to the resources assigned to the two TRPs 406 and 408, respectively. For example, corresponding to the TCI state ID... i,1 The combined DL / UL TCI status can be applied to the first PDSCH, first PUCCH, and first PUSCH from / to TRP 406, corresponding to the TCI status ID. i,2 The combined DL / UL TCI status can be applied to the second PDSCH, second PUCCH, and second PUSCH from / to TRP 408. The mapping between the combined TCI status and the resources of each TRP can be determined in the specification (i.e., predetermined) or dynamically determined by BS 404 via RRC / MAC-CE / DCI.

[0075] If MAC-CE activates multiple joint TCI state sets (e.g., N+1 sets), then DCI can further indicate the TCI code points mapped to each set. In the first configuration, the indicated TCI code points (e.g., sets C0, C1, ..., C...) NOne of them can be used for DL ​​reception or UL transmission scheduled by the same DCI 414 indicating the TCI code point. For example, if the DCI indicates the TCI code point value i (where 0 ≤ i ≤ N), then it is related to the TCI state ID. i,1 The associated joint DL / UL TCI state can be applied to the first PDSCH from TRP 406 (Rx beam direction 502) and the first PUCCH to TRP 406 (Tx beam direction 502) scheduled by DCI 414, and the TCI state ID i,2 This can be applied to the second PDSCH from TRP 408 (Rx beam direction 504) and the second PUCCH to TRP 408 (Tx beam direction 504) scheduled by DCI 414. In the second configuration, the indicated TCI code point can be used for DL ​​reception or UL transmission scheduled by all following scheduling DCI 414. For example, with TCI status ID respectively. i,1 and TCI status ID i,2 The corresponding first and second joint DL / UL TCI states can be applied, respectively, to the resources scheduled for the first TRP 406 and the second TRP 408 by a separately (e.g., subsequently) received scheduling DCI 414. Within a plurality of TCI code points corresponding to multiple sets of activated joint DL / UL TCI states, a TCI code point is defined as indicating a default common beam set. When no TCI state indication is provided for a scheduled DL reception or UL transmission, a default common beam is applied. The common beam can be used for any of the data channels (such as PDSCH, PUSCH), control channels (such as control resource sets (CORESET), PUCCH), or RS signals (such as CSI-RS and SRS). For example, when no TCI code point is indicated by any DCI 414, the lowest code point ID value (e.g., C0) or the highest code point ID value (e.g., C...) is used. N The TCI code point can be defined as indicating the default common beam set. Among the TCI code points used for the default common beam, the first TCI state mapped to the code point can be used as the default common beam for the resource associated with the first TRP, and the second TCI state mapped to the code point can be used as the default common beam for the resource associated with the second TRP.

[0076] As noted herein, enhancements to multi-beam operation, such as targeting a frequency range (e.g., frequency range 2 (FR2)) while also being applicable to other frequency ranges (e.g., frequency range 1 (FR1)), may be beneficial in several aspects of wireless communication. To enhance multi-beam operation, features can be identified and specified to facilitate more efficient (i.e., lower latency and overhead) DL / UL beam management to support higher intra-cell mobility and inter-cell mobility (e.g., inter-cell mobility centered on Layer 1 (L1) / Layer 2 (L2)) and / or a greater number of configured TCI states. Common beams for data and control transmission or reception for DL ​​and UL (e.g., for in-band carrier aggregation (CA)) can be specified to provide a unified TCI framework for DL ​​and UL beam indication.

[0077] Furthermore, enhancements to the signaling mechanisms used for the aforementioned features can be provided to improve latency and efficiency by leveraging greater use of dynamic control signaling (such as the opposite of RRC signaling). Additionally, features can be identified and specified to facilitate UL beam indication based on a unified TCI framework for UL fast panel selection, for UEs equipped with multiple panels (considering the mitigation of UL coverage loss due to Maximum Permissible Exposure (MPE)). In some aspects, a unified TCI framework for DL ​​and UL beam indication can be beneficial. In some cases, signaling a common beam for multiple DL and UL resources can help save both beam indication and overhead latency. The common beam indication can be signaled via a joint DL / UL TCI state. This document describes the activation of the joint DL / UL TCI state using MAC-CE.

[0078] Furthermore, the joint DL / UL TCI status can jointly indicate a common beam or set of common beams applied to each of multiple DL or UL resources. The joint DL / UL TCI status can include a set of information containing various information or parameters. For example, each in the joint DL / UL TCI status can include a TCI status identifier (ID). The TCI status ID can be included in a dedicated ID space for common beam indication, or in a common ID space shared for common DL / UL beam indication, DL beam indication, and / or UL beam indication. Additionally, the joint DL / UL TCI status can include the IDs of one or more source reference signals (RSs) that provide at least one DL quasi-co-location (QCL) assumption and / or UL spatial relationship information. The one or more source RSs can include a serving cell ID and a BWP ID, which can indicate where the one or more source RSs are located. If a serving cell ID does not exist, a serving cell in which the TCI status is configured can be selected. One or more source RSs may include multiple RS types, including dedicated demodulation reference signals (DM-RS) such as Synchronization Signal Block (SSB), CSI-RS, PRS, PRACH, PDSCH, PDCCH, PUCCH, or PUSCH.

[0079] One or more source RSs may also provide various QCL assumptions and / or spatial relational information, including characteristics regarding delay, Doppler, and / or spatial Rx / Tx parameters. For example, a QCL may include a specific QCL type, such as QCL-Type A, which includes Doppler frequency shift, Doppler spread, average delay, and delay spread. A QCL may also include: QCL-Type B, which includes Doppler frequency shift and Doppler spread; and QCL-Type C, which includes Doppler frequency shift and average delay; and QCL-Type D, which includes spatial Rx parameters. Based on the provided QCL or spatial assumptions, one or more source RSs may have different combinations. For example, a joint DL / UL TCI state may include the ID of one source RS for QCL-Type A, QCL-Type B, and / or QCL-Type C. For example, three source RSs may include a first RS for QCL-Type A / Type B / Type C, a second RS for QCL-Type D, and a third RS for spatial relational information.

[0080] Furthermore, each of the joint DL / UL TCI states may include UL power control (PC) parameters that instruct the UE to configure UL transmission power. For example, UL power control parameters may include path loss RS ID, P0, Alpha, closed-loop index, and PC group ID. Additionally, each of the joint DL / UL TCI states may include UL TA parameters that instruct the UE to configure timing advance (TA) for UL transmission, such as TA group ID and / or TA value. Each of the joint DL / UL TCI states may also include one or more parameters for codebook-based and / or non-codebook-based PUSCH transmissions, such as SRS resource indicator (SRI), transmit precoding matrix indicator (TPMI), or combinations thereof. Furthermore, each of the joint DL / UL TCI states may include a UE panel ID or a similar ID, such as an antenna port group ID or beam group ID. For example, a UE panel ID associated with a common DL / UL beam may include two separate panel IDs for DL ​​and UL or a single panel ID for both DL and UL.

[0081] In aspects of wireless communication utilizing a single TRP, the TRP or base station can provide a MAC-CE to the UE to activate one or more configured joint DL / UL TCI states. In some aspects, the DCI and / or MAC-CE can activate a subset of configured joint DL / UL TCI states, wherein each joint DL / UL TCI state can indicate a common beam for DL ​​reception / UL transmission. Therefore, a set of joint DL / UL states can be configured, and the base station can send a MAC-CE to the UE to indicate to the UE the activation of one or more subsets of configured joint DL / UL TCI states. Based on the above, activating joint DL / UL TCI states in multiple TRP or multiple TRP (mTRP) communications based on multiple DCIs or multiple DCIs (mDCIs) can be advantageous, wherein each DCI can schedule UL transmission or DL ​​reception associated with the TRP.

[0082] Various aspects of this disclosure can provide for the activation of a joint DL / UL TCI state. In some cases, various aspects of this disclosure can be applied to mDCI-based mTRP communication. For example, various aspects of this disclosure can activate a joint DL / UL TCI state in mDCI-based mTRP communication. In various aspects utilizing multi-DCI-based multi-TRP communication, each TRP can individually schedule DL reception or UL transmission by transmitting its own DCI. In this case, a TRP ID (e.g., a CORESET pool ID) can be introduced in the MAC-CE that activates the joint DL / UL TCI state. The joint DL / UL TCI state activated by the MAC-CE can be applied to DL reception or UL transmission scheduled by a DCI in a CORESET having a CORESET pool ID equal to the CORESET pool ID indicated in the MAC-CE. Although the CORESET pool ID is used as an example for TRPID, the TRP ID can have other similar IDs, such as antenna port group ID, panel ID, beam ID, or beam group ID, etc.

[0083] In some aspects of this disclosure, DL reception and UL transmission can be associated with multiple different channels. In some cases, DL reception may include a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), a Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or a Position Reference Signal (PRS). Furthermore, UL transmission may include a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), a Sound Reference Signal (SRS), or a Physical Random Access Channel (PRACH).

[0084] Figure 6 This is a schematic diagram illustrating the MAC-CE 600. (For example...) Figure 6 As shown, MAC-CE includes CORESET pool ID 610, serving cell ID 620, and BWP ID 630, as well as multiple octets (e.g., Oct 601, Oct 602, Oct 603, and Oct N). MAC-CE 600 may include a bitmap indicating which(s) of the configured joint DL / UL TCI states are active, the serving cell ID to which MAC-CE 600 is applied (e.g., serving cell ID 620), and the BWP ID (e.g., BWP ID 630). Figure 6As depicted, the MAC-CE 600 may include a variable-size bitmap that includes a CORESET pool ID, a serving cell ID field, a BWP ID field, and multiple TCI status fields. For example, the first octet (Oct) of the MAC-CE 600 bitmap (e.g., Oct 601) may include a CORESET pool ID 610, a serving cell ID 620, and a BWP ID 630.

[0085] In some respects, the CORESET pool ID (e.g., CORESET pool ID 610) can indicate whether the mapping between the activated TCI state and the DCI code point is pre-configured or based on predefined rules. For example, the length of CORESET pool ID 610 can be multiple bits (e.g., one (1) bit), which can be used to indicate the TCI state for one of the two TRPs. The serving cell ID 620 can indicate the identifier of the serving cell to which MAC-CE 600 is applied. For example, the length of serving cell ID 620 can also be multiple bits (e.g., five (5) bits). The BWP ID 630 can indicate the DL BWP to which MAC-CE 600 is applied as a code point. For example, the length of the BWP ID field can be multiple bits (e.g., two (2) bits).

[0086] Apart from the first octet, the remaining octets can be a bitmap of the joint DL / UL TCI states, where each bit corresponds to each joint DL / UL TCI state. For example... Figure 6 As shown, the bitmap may include a first TCI state (e.g., T0) up to the last TCI state (e.g., T...). (N-2)x8+7 If a bit is set to a specific value (e.g., -(1)), the corresponding joint DL / UL TCI state can be activated. If a bit is set to another value (e.g., zero(0)), the corresponding joint DL / UL TCI state may not be activated. The base station can configure up to a specific number of joint DL / UL TCI states (e.g., 128 joint DL / UL TCI states), and the bitmap can have a bit length of a specific number of bits (e.g., 128 bits). The MAC-CE 600 can select up to a specific number of bits (e.g., eight(8) bits). Thus, the bitmap can have up to that number of bits (e.g., eight(8) bits) set to a specific value (e.g., -(1)) in order to activate the corresponding joint DL / UL TCI state.

[0087] Some aspects of this disclosure may include the applicable DL / UL channel type or resource for each active joint DL / UL TCI state associated with a CORESET pool ID. This applicable DL / UL channel type or resource may be determined based on several different options or aspects. In one aspect, the applicable DL / UL channel type or resource may be pre-configured or predefined in the specification. For example, an active joint DL / UL TCI state may be applied to each DL / UL channel type or resource scheduled by a DCI in a CORESET having the same CORESET pool ID as the joint DL / UL TCI state in a component carrier (CC) with applied MAC-CE.

[0088] In another aspect of this disclosure, the applicable DL / UL channel types or resources can be configured or indicated by the base station or TRP. For example, the applicable DL / UL channel types or resources can be configured or indicated via RRC signaling, MAC-CE, or DCI. Additionally, the base station or TRP can indicate that an active joint DL / UL TCI state can be applied to all or a subset of the DL / UL channel types or resources. These DL / UL channel types or resources can be scheduled by a DCI in a CORESET having the same CORESET pool ID as the joint DL / UL TCI state in the CC applying MAC-CE.

[0089] In some aspects, if the MAC-CE activates multiple joint DL / UL TCI states for a CORESET pool ID, the DCI can further indicate the TCI code point mapped to an activated joint DL / UL TCI state. The joint DL / UL TCI states activated by the MAC-CE can be sequentially mapped to candidate TCI code points associated with the same CORESET pool ID. In some cases, the activated joint DL / UL TCI states can be dynamically indicated by the DCIs in a CORESET with the same CORESET pool ID. For example, the MAC-CE can activate a specific joint DL / UL TCI state ID for a particular CORESET pool ID (e.g., a CORESET pool ID that is zero (0)), such as joint DL / UL TCI state IDs 5, 7, and 9 corresponding to T5, T7, and T9 in the MAC-CE. For DCIs in a CORESET with the same CORESET pool ID, these joint DL / UL TCI state IDs can be sequentially mapped to candidate TCI code points with specific values ​​(e.g., values ​​of 0, 1, and / or 2).

[0090] Furthermore, in some aspects, the indicated TCI code point can be used for DL ​​reception / UL transmissions scheduled by the same DCI. Additionally, the applicable DL reception / UL transmissions can be indicated or predefined in the specification, or indicated by the base station or TRP (e.g., via RRC signaling, MAC-CE, or DCI). For example, the specification may describe that a TCI code point indicated by the DCI is applied to all DL receptions or UL transmissions scheduled by a CORESET, which has the same CORESET pool ID as the CORESET pool ID indicated in the MAC-CE used to activate the corresponding TCI code point. Furthermore, the base station or TRP may, for example via RRC, MAC-CE signaling, or DCI, indicate that a TCI code point indicated by the DCI is applied to a subset of DL receptions or UL transmissions scheduled by a CORESET, which has the same CORESET pool ID as the CORESET pool ID indicated in the MAC-CE used to activate the corresponding TCI code point.

[0091] Figure 7 This is a schematic diagram 700 illustrating an example communication between UE 702 and TRP or base station 704.

[0092] At 710, TRP 704 may send a MAC-CE (e.g., MAC-CE 714) to the UE (e.g., UE 702). The MAC-CE activates a configured joint DL and UL TCI state, a configured DL TCI state, or a subset of configured UL TCI states. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with the control resource set (CORESET) set. At 712, UE702 may receive a MAC-CE (e.g., MAC-CE 714) from a TRP (e.g., TRP 704) that activates a configured joint DL and UL TCI state, a configured DL TCI state, or a subset of configured UL TCI states. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of control resource sets (CORESET).

[0093] In some aspects, the MAC-CE may include a bitmap indicating which of the following are activated in association with the CORESET pool ID: the CORESET pool ID, the configured joint DL and UL TCI states, the configured DL TCI states, or the configured UL TCI states. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI states, or the activated UL TCI states may be associated with at least one of the following: the Physical Downlink Control Channel (PDCCH), the Physical Downlink Shared Channel (PDSCH), the Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or the Positioning RS (PRS) for DL, and at least one of the following: the Physical Uplink Control Channel (PUCCH), the Physical Uplink Shared Channel (PUSCH), the Sound Reference Signal (SRS), or the Physical Random Access Channel (PRACH) for UL. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS for DL ​​scheduled by CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH for UL scheduled by CORESET associated with the CORESET pool ID.

[0094] At 720, TRP 704 may send a configuration (e.g., configuration 724) indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states. At 722, UE 702 may receive a configuration (e.g., configuration 724) indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states. In some aspects, this configuration may be received via at least one of Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI).

[0095] At 730, TRP 704 may transmit a DCI (e.g., DCI 734) in a CORESET associated with the CORESET pool ID. The DCI indicates an index of a TCI code point corresponding to an active joint DL and UL TCI state associated with the CORESET pool ID. At 732, UE 702 may receive a DCI (e.g., DCI 734) in a CORESET associated with the CORESET pool ID. The DCI indicates an index of a TCI code point corresponding to an active joint DL and UL TCI state associated with the CORESET pool ID.

[0096] In some cases, the joint DL and UL TCI states, DL TCI states, or UL TCI states activated in the MAC-CE can be mapped to TCI code points using a sequential index, with the TCI code points associated with the CORESET pool ID. Furthermore, received DCIs can schedule communication via DL or UL, and communication via DCI-scheduled DL or UL can be based on one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state, corresponding to the index of the TCI code point indicated by the DCI.

[0097] At 740, TRP 704 may send an indication (e.g., indication 744) of DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID are based on the sent indication. At 742, UE 702 may receive an indication (e.g., indication 744) of DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with the CORESET pool ID are determined based on the received indication. Furthermore, this indication may be received via Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI).

[0098] At 750, UE 702 can determine the DL and UL resources for communication applied to one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state corresponding to the index of the TCI code point indicated via DCI. The determined DL and UL resources are scheduled by one or more CORESETs associated with a CORESET pool ID. In some cases, the DL and UL resources for communication may be pre-configured or predetermined.

[0099] At 760, UE 702 can communicate with TRP (e.g., TRP 704) via DL and UL scheduled from one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. At 762, TRP 704 can communicate with UE (e.g., UE 702) via DL and UL scheduled from one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state.

[0100] Figure 8 This is a flowchart 800 of a wireless communication method. The method can be performed by a UE or a component of a UE (e.g., UE 104, 350, 702; device 1202; processing system, which may include memory 360 and may be the entire UE or a component of a UE, such as TX processor 368, controller / processor 359, transmitter 354TX, antenna 352, etc.). The method described herein can provide various benefits, such as improved communication signaling, resource utilization, and / or power savings.

[0101] At 802, the UE can receive a Medium Access Control (MAC) Control Element (CE) (MAC-CE) from the Transmit Receive Point (TRP). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs), such as in combination. Figures 4-7The example described in [example description]. For instance, UE 702 can receive a Medium Access Control (MAC) Control Element (CE) (MAC-CE) from a Transmit Receive Point (TRP). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). Furthermore, 802 can be [details omitted]. Figure 12 The determined component 1240 is used to execute.

[0102] In some aspects, MAC-CE may include a bitmap indicating which of the following are activated in association with the CORESET pool ID, and which of the configured combined DL and UL TCI states, configured DL TCI states, or configured UL TCI states, are active in association with the CORESET pool ID, such as in combination. Figures 4-7 The example described in the document. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the following: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL, and at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL, as in combination. Figures 4-7 As described in the example. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID, as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0103] At 812, the UE can communicate with the TRP via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated combined DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, such as combined DL and UL TCI. Figures 4-7 As described in the example. For example, UE 702 can communicate with the TRP via DL and UL scheduled through one or more CORESETs in a CORESET set associated with a CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Furthermore, 812 can be... Figure 12 The determined component 1240 is used to execute.

[0104] Figure 9 This is a flowchart 900 of a wireless communication method. The method can be performed by a UE or a component of a UE (e.g., UE 104, 350, 702; device 1202; processing system, which may include memory 360 and may be the entire UE or a component of a UE, such as TX processor 368, controller / processor 359, transmitter 354TX, antenna 352, etc.). The method described herein can provide various benefits, such as improved communication signaling, resource utilization, and / or power savings.

[0105] At 902, the UE can receive a Medium Access Control (MAC) Control Element (CE) (MAC-CE) from the Transmit Receive Point (TRP). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs), such as in combination. Figures 4-7The example described in [example description]. For instance, UE 702 can receive a Medium Access Control (MAC) control element (CE) (MAC-CE) from a Transmit Receive Point (TRP) that activates a configured set of Combined Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of a configured UL TCI state. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, each activated UL TCI state indicates a beam for communication in the UL, and the MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). Furthermore, 902 can be [details omitted]. Figure 12 The determined component 1240 is used to execute.

[0106] In some aspects, MAC-CE may include a bitmap indicating which of the following are activated in association with the CORESET pool ID, and which of the configured combined DL and UL TCI states, configured DL TCI states, or configured UL TCI states, are active in association with the CORESET pool ID, such as in combination. Figures 4-7 The example described in the document. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the following: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL, and at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL, as in combination. Figures 4-7 As described in the example. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID, as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0107] At 904, the UE may receive a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and ULTCI states, the activated DL TCI states, or the activated UL TCI states, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states, such as combined Figure 12 As described in the example. For example, UE 702 may receive a configuration indicating which of at least one of PDCCH, PDSCH, CSI-RS, or PRS scheduled by CORESET associated with CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state, and indicating which of at least one of PUCCH, PUSCH, SRS, or PRACH scheduled by CORESET associated with CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states. Furthermore, 904 may be... Figures 4-7 The configuration is performed by the determined component 1240. In some aspects, this configuration may be received via at least one of Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI), such as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0108] At 906, the UE can receive downlink control information (DCI) in a CORESET associated with the CORESET pool ID. The DCI indicates the index of the TCI code point, which corresponds to one of the activated combined DL and UL TCI states, the activated DLTCI state, or the activated UL TCI state associated with the CORESET pool ID, such as combined DL and UL TCI states. Figure 12 As described in the example. For example, UE 702 can receive downlink control information (DCI) in a CORESET associated with a CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states, the activated DLTCI state, or the activated UL TCI state associated with the CORESET pool ID. Furthermore, 906 can be... Figures 4-7 The determined component 1240 is used to execute.

[0109] In some cases, the combined DL and UL TCI states, DL TCI states, or UL TCI states activated in MAC-CE can be mapped to TCI code points using a sequential index. These TCI code points are associated with the CORESET pool ID, such as when combined with... Figures 4-7 The example described in the document. Furthermore, the received DCI can schedule communication via DL or UL, and communication via DL or UL scheduled through the DCI is based on one of the following: the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, corresponding to the index of the TCI code point indicated via the DCI, such as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0110] At 908, the UE can receive indications of DL and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID, wherein the DL and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID are determined based on the received indications, such as in conjunction with... Figure 12 As described in the example. For example, UE 702 can receive indications of DL resources and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID, wherein the DL resources and UL resources for communication scheduled by one or more CORESETs associated with a CORESET pool ID are determined based on the received indications. Furthermore, 908 can be... Figures 4-7 The determination component 1240 in the middle performs the execution. Furthermore, this indication can be received via Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI), such as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0111] At 910, the UE can determine the DL and UL resources used for communication that are applied to one of the following: the activated combined DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state corresponding to the index of the TCI code point indicated via DCI. The determined DL and UL resources are scheduled by one or more CORESETs associated with a CORESET pool ID, such as in combination. Figure 12As described in the example. For example, UE 702 can determine the DL and UL resources used for communication that are applied to one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state corresponding to the index of the TCI code point indicated via DCI, and the determined DL and UL resources are scheduled by one or more CORESETs associated with a CORESET pool ID. Furthermore, 910 can be... Figures 4-7 The determined component 1240 performs the execution. In some cases, the DL resources and UL resources used for communication can be pre-configured or predetermined, such as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0112] At 912, the UE can communicate with the TRP via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated combined DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, such as combined DL and UL TCI. Figure 10 As described in the example. For example, UE 702 can communicate with the TRP via DL and UL scheduled through one or more CORESETs in a CORESET set associated with a CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Furthermore, 912 can be... Figures 4-7 The determined component 1240 is used to execute.

[0113] Figures 4-7 This is a flowchart 1000 of a wireless communication method. The method can be performed by a TRP or a base station or a component of a TRP or a base station (e.g., base station 102, 180, 310, 704; device 1302; processing system, which may include memory 376, and may be the entire base station or components of a base station, such as antenna 320, receiver 318RX, RX processor 370, controller / processor 375, etc.). The method described herein can provide various benefits, such as improved communication signaling, resource utilization, and / or power savings.

[0114] At 1002, the TRP can send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE). The MAC-CE activates a configured set of Joint Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a control resource set (CORESET) set, such as in combination. Figures 4-7 As described in the example. For example, TRP 704 may send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). Furthermore, 1002 may be performed by the determining component 1340.

[0115] In some aspects, the MAC-CE may include a bitmap indicating which of the following are activated in association with the CORESET pool ID, and which of the configured combined DL and UL TCI states, configured DL TCI states, or configured UL TCI states, are active in association with the CORESET pool ID, such as in combination. Figures 4-7The example described in the document. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the following: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL, and at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL, as in combination. Figures 4-7 As described in the example. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID, as in combination. Figure 11 The example described in [the document / reference] is as follows.

[0116] At 1010, the TRP can communicate with the UE based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, such as combined Figures 4-7 As described in the example. For example, TRP 704 can communicate with the UE via DL and UL scheduled through one or more CORESETs in a CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Furthermore, 1010 can be performed by the determining component 1340.

[0117] Figures 4-7 This is a flowchart 1100 of a wireless communication method. The method can be performed by a TRP or a base station or a component of a TRP or a base station (e.g., base station 102, 180, 310, 704; device 1302; processing system, which may include memory 376, and may be the entire base station or components of a base station, such as antenna 320, receiver 318RX, RX processor 370, controller / processor 375, etc.). The method described herein can provide various benefits, such as improved communication signaling, resource utilization, and / or power savings.

[0118] At 1102, the TRP can send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE). The MAC-CE activates a configured set of Joint Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a control resource set (CORESET) set, such as in combination. Figures 4-7 As described in the example. For example, TRP 704 may send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of configured UL TCI states. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). Furthermore, 1102 may be performed by the determining component 1340.

[0119] In some aspects, the MAC-CE may include a bitmap indicating which of the following are activated in association with the CORESET pool ID, and which of the configured combined DL and UL TCI states, configured DL TCI states, or configured UL TCI states, are active in association with the CORESET pool ID, such as in combination. Figures 4-7The example described in the document. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the following: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL, and at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL, as in combination. Figures 4-7 As described in the example. Furthermore, each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state may be associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID, as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0120] At 1104, the TRP can send a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, and which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states, such as combined Figures 4-7As described in the example. For example, TRP 704 can send a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the active joint DL and UL TCI states, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the active joint DL and UL TCI states. Furthermore, 1104 can be performed by determining component 1340. In some aspects, this configuration can be sent via at least one of Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI), such as in combination. Figures 4-7 The example described in [the document / reference] is as follows.

[0121] At 1106, the TRP can send downlink control information (DCI) in the CORESET associated with the CORESET pool ID. The DCI indicates the index of the TCI code point, which corresponds to one of the activated combined DL and UL TCI states associated with the CORESET pool ID, such as when combined... Figures 4-7 The example described herein. For instance, TRP 704 can send downlink control information (DCI) in a CORESET associated with a CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states associated with the CORESET pool ID. Furthermore, 1106 can be performed by the determining component 1340.

[0122] In some cases, the combined DL and UL TCI states, DL TCI states, or UL TCI states activated in MAC-CE can be mapped to TCI code points using a sequential index. These TCI code points are associated with the CORESET pool ID, such as when combined with... Figures 4-7 The example described in the document. Furthermore, the transmitted DCI can schedule communication via DL or UL, and communication via DL or UL scheduled through the DCI can be based on an activated joint DL and UL TCI state corresponding to the index of the TCI code point indicated via the DCI, such as in combination. Figures 4-7 The example described in [the document] further illustrates this. Furthermore, the DL and UL resources used for communication applied to an activated combined DL and UL TCI state corresponding to the index of the TCI code point indicated via DCI can be scheduled by one or more CORESETs associated with a CORESET pool ID, as combined with [other resources].Figures 4-7 The example described in [the document] further illustrates this. Additionally, the DL and UL resources used for communication can be pre-configured or predetermined, such as in combination with [other resources]. Figures 4-7 The example described in [the document / reference] is as follows.

[0123] At 1108, the TRP can send indications for DL ​​and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID are based on the sent indications, such as in combination with... Figure 12 The example described in the document. For instance, TRP 704 can send an indication of DL and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID are based on the sent indication. Furthermore, 1108 can be performed by determining component 1340. This indication can be sent via one of Radio Resource Control (RRC) signaling, MAC-CE, or Downlink Control Information (DCI), as in combination. Figure 3 The example described in [the document / reference] is as follows.

[0124] At 1110, the TRP can communicate with the UE via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, such as in combination. Figures 7-9 As described in the example. For example, TRP 704 can communicate with the UE via DL and UL scheduled through one or more CORESETs in a CORESET set associated with the CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Furthermore, 1110 can be performed by the determining component 1340.

[0125] Figures 7-9This is a schematic diagram 1200 illustrating an example of a hardware implementation for device 1202. 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 Module (SIM) cards 1220; an application processor 1206 coupled to a Secure Digital Card (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 BS 102 / 180 via the cellular RF transceiver 1222. The cellular baseband processor 1204 may include computer-readable media / memory. The computer-readable media / memory may be non-transitory. The cellular baseband processor 1204 is responsible for general processing, including executing software stored on the computer-readable media / memory. When executed by the cellular baseband processor 1204, the software causes the cellular baseband processor 1204 to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by the cellular baseband processor 1204 during software execution. The cellular baseband processor 1204 also includes a receiving component 1230, a communication manager 1232, and a transmitting component 1234. The communication manager 1232 includes one or more of the components shown. The components within the communication manager 1232 can be stored in a computer-readable medium / memory and / or configured as hardware within the cellular baseband processor 1204. The cellular baseband processor 1204 can be a component of the UE 350 and can include at least one of the TX processor 368, the RX processor 356, and the controller / processor 359 and / or memory 360. In one configuration, the device 1202 can be a modem chip and only include the baseband processor 1204; in another configuration, the device 1202 can be the entire UE (e.g., see...). Figure 13 (350) and includes the aforementioned additional modules of device 1202.

[0126] The communication manager 1232 includes a determining component 1240 configured to receive a Media Access Control (MAC) Control Element (CE) (MAC-CE) from a Transmitter Receiver Point (TRP). The MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of a configured UL TCI state. Each activated Combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs), for example, as described above in conjunction with step 902. The determining component 1240 can also be configured to receive a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled by the CORESET associated with the CORESET pool ID for DL ​​applies to each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled by the CORESET associated with the CORESET pool ID for UL applies to each of the activated joint DL and UL TCI states, for example, as described above in conjunction with step 904. The determining component 1240 can also be configured to receive downlink control information (DCI) in a CORESET associated with a CORESET pool ID. The DCI indicates an index of a TCI code point corresponding to one of the following associated with a CORESET pool ID: an activated joint DL and UL TCI state, an activated DL TCI state, or an activated UL TCI state, for example, as described above in conjunction with step 906. The determining component 1240 can also be configured to receive indications of DL and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID, wherein the DL and UL resources scheduled for communication by one or more CORESETs associated with a CORESET pool ID are determined based on the received indications, for example, as described above in conjunction with step 908.The determining component 1240 can also be configured to determine the DL and UL resources used for communication that correspond to the index of the TCI code point indicated via the DCI in an activated joint DL and UL TCI state, an activated DL TCI state, or an activated UL TCI state, and that are scheduled by one or more CORESETs associated with a CORESET pool ID, for example, as described above in conjunction with step 910. The determining component 1240 can also be configured to communicate with the TRP via DL and UL resources scheduled through one or more CORESETs in a CORESET set associated with a CORESET pool ID, based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, for example, as described above in conjunction with step 912.

[0127] The device may include the ability to perform the above-described actions. Figure 7 The flowchart shows the algorithm's additional components in each box. Therefore, the above... Figure 7 Each box in the flowchart can be executed by a component, and the apparatus can include one or more of these components. These components can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0128] In one configuration, device 1202 (and specifically, cellular baseband processor 1204) includes: a unit for receiving a Medium Access Control (MAC) Control Element (CE) (MAC-CE) from a Transmit Receive Point (TRP), wherein the MAC-CE activates a subset of configured Joint Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, each activated Joint DL and UL TCI state indicating a common beam for communication in the DL and UL, and the MAC-CE indicating a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs); and a unit for receiving a configuration indicating which of at least one of a PDCCH, PDSCH, CSI-RS, or PRS scheduled by a CORESET associated with the CORESET pool ID applies to the activated Joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Each of the TCI states, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH for UL scheduled by the CORESET associated with the CORESET pool ID applies to each of the activated joint DL and UL TCI states; a unit for receiving downlink control information (DCI) in the CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated joint DL and UL TCI states, the activated DLTCI state, or the activated UL TCI state associated with the CORESET pool ID; a unit for receiving an indication of DL resources and UL resources for communication scheduled by one or more CORESETs associated with the CORESET pool ID, wherein the DL resources and UL resources for communication scheduled by one or more CORESETs associated with the CORESET pool ID are determined based on the received indication; a unit for determining the activated joint DL and UL TCI state, the activated DLTCI state, or the activated UL TCI state. The unit applied to the DL and UL resources for communication in the TCI state corresponding to the index of the TCI code point indicated by the DCI, wherein the determined DL and UL resources are scheduled by one or more CORESETs associated with the CORESET pool ID; and the unit for communicating with the TRP through DL and UL scheduled via one or more CORESETs in the CORESET set associated with the CORESET pool ID based on the activated joint DL and UL TCI state. The aforementioned unit may be one or more of the components of the device 1202 configured to perform the functions described therein.As described above, the device 1202 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Therefore, in one configuration, the aforementioned units may be the TX processor 368, the RX processor 356, and the controller / processor 359, which are configured to perform the functions described therein.

[0129] Figure 14 This is a schematic diagram 1300 illustrating an example of a hardware implementation for device 1302. Device 1302 is a base station and includes a baseband unit 1304. Baseband unit 1304 can communicate with UE 104 via a cellular RF transceiver. Baseband unit 1304 may include computer-readable medium / memory. Baseband unit 1304 is responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by baseband unit 1304, the software causes baseband unit 1304 to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by baseband unit 1304 when executing the software. Baseband unit 1304 also includes a receiving component 1330, a communication manager 1332, and a transmitting component 1334. Communication manager 1332 includes one or more of the components shown. Components within communication manager 1332 may be stored in computer-readable medium / memory and / or configured as hardware within baseband unit 1304. The baseband unit 1304 may be a component of the BS 310 and may include at least one of the TX processor 316, the RX processor 370 and the controller / processor 375 and / or the memory 376.

[0130] The communication manager 1332 includes a determining component 1340 configured to send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the UE. The MAC-CE activates a subset of configured Joint Downlink (DL) and Uplink (UL) Transport Configuration Indicator (TCI) states, each activated Joint DL and UL TCI state indicating a common beam for communication in the DL and UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs), for example, as described above in conjunction with step 702. The determining component 1340 can also be configured to communicate with the UE via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID, based on the activated Joint DL and UL TCI states, for example, as described above in conjunction with step 710.

[0131] The device may include the ability to perform the above-described actions. Figure 4 , 10 The additional components in each box of the algorithm in the flowchart of 11. Therefore, the above Figure 5, 10 Each block in the flowchart of section 11 can be executed by a component, and the apparatus can include one or more of these components. These components can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0132] In one configuration, device 1302 (and specifically, baseband unit 1304) includes: a unit for transmitting a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the UE, wherein the MAC-CE activates a subset of configured Joint Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, each activated Joint DL and UL TCI state indicating a common beam for communication in the DL and UL, and the MAC-CE indicating a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs). Device 1302 may further include: a unit for communicating with the UE via DL and UL scheduled through one or more CORESETs in a set of CORESETs associated with the CORESET pool ID, based on the activated Joint DL and UL TCI states. The aforementioned unit may be one or more of the components of device 1302 configured to perform the functions described therein. As described above, device 1302 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Therefore, in one configuration, the aforementioned units may be TX processor 316, RX processor 370, and controller / processor 375, which are configured to perform the functions described in the aforementioned units.

[0133] Figure 4 This is a flowchart 1400 of a wireless communication method. This method can be performed by a UE (e.g., UE 104, 702; device 1702). At 1402, the UE receives a Medium Access Control (MAC) control element (CE) (MAC-CE) from a Transmit Receive Point (TRP). The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL. For example, refer to... Figure 5 ,Figure 15 UE 402 receives a Media Access Control (MAC) control element (CE) (MAC-CE) from the TRP. The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL. In one example, MAC-CE 412 can activate the 0th joint DL / UL TCI state set via the fields C0, R (where R may be optional). (The TCI state ID is also mentioned.) 0,1 and TCI status ID 0,2 Each corresponding activated joint DL / UL TCI state indicates the common beam used for communication in DL / UL. Furthermore, 1402 can be performed by the joint DL / UL TCI state activation component 1740.

[0134] Furthermore, at 1406, the UE communicates with multiple TRPs via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. For example, refer to Figure 4 , Figure 5 UE 402 communicates with multiple TRPs via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. In one example, UE 402 can communicate based on the TCI state ID. 0,1 The corresponding joint DL / ULTCI state is used to communicate with TRP 406 via DL / UL 416, and UE 402 can communicate based on the TCI state ID. 0,2 The corresponding joint DL / UL TCI state enables communication 416 with TRP 408 via DL / UL. Communication 416 via DL / UL based on the joint DL / UL TCI state corresponds to using a common beam (receive beam / transmit beam) to receive from and transmit to TRP. Furthermore, 1406 can be performed by the joint DL / UL TCI state activation component 1740.

[0135] Figure 4This is a flowchart 1500 of a wireless communication method. This method can be performed by a UE (e.g., UE 104, 702; device 1702). At 1502, the UE receives a Medium Access Control (MAC) control element (CE) (MAC-CE) from a Transmitter Receiver Point (TRP). The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL. For example, refer to... Figure 5 , Figure 4 UE 402 receives a Media Access Control (MAC) control element (CE) (MAC-CE) from the TRP. The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL. In one example, MAC-CE 412 can activate the 0th joint DL / UL TCI state set via the fields C0, R (where R may be optional). (The TCI state ID is also mentioned.) 0,1 and TCI status ID 0,2 Each corresponding activated joint DL / UL TCI state indicates the common beam used for communication in DL / UL. Furthermore, 1502 can be performed by the joint DL / UL TCI state activation component 1740.

[0136] Furthermore, at 1506, the UE communicates with multiple TRPs via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. For example, refer to Figure 5 , Figure 5UE 402 communicates with multiple TRPs via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. In one example, UE 402 can communicate based on the TCI state ID. 0,1 The corresponding joint DL / ULTCI state is used to communicate with TRP 406 via DL / UL 416, and UE 402 can communicate based on the TCI state ID. 0,2 The corresponding joint DL / UL TCI state enables communication 416 with TRP 408 via DL / UL. Communication 416 via DL / UL based on the joint DL / UL TCI state corresponds to using a common beam (receive beam / transmit beam) to receive from and transmit to TRP. Furthermore, 1506 can be performed by the joint DL / UL TCI state activation component 1740.

[0137] In one configuration, at 1504, the UE receives DCI from the TRP, and the DCI schedules communication with multiple TRPs via DL and UL. For example, see reference... Figure 5 , Figure 4 UE 402 receives DCI 414 from TRP 406, and DCI 414 schedules communication 416 with multiple TRPs 406, 408, and 410 via DL / UL. Furthermore, 1504 can be performed by the joint DL / UL TCI state activation component 1740.

[0138] In one configuration, such as Figure 5 As shown, the scheduled communication with multiple TRPs via DL and UL is associated with at least one of PDCCH, PDSCH, CSI-RS, or PRS for DL ​​and at least one of PUCCH, PUSCH, SRS, or PRACH for UL. In one configuration, the scheduled communication with multiple TRPs via DL and UL is via at least one of FDM 506, TDM 508, or SDM 510. In one configuration, at least one set of activated joint DL and UL TCI states includes a set of activated joint DL and UL TCI states, and the activated set of joint DL and UL TCI states is sequentially applied to the scheduled communication with multiple TRPs via DL and UL. For example, the 0th joint DL / UL TCI state set is activated using C0 and optional R joint DL / UL TCI states, associated with the TCI state ID (TCI state ID). 0,1 TCI Status ID 0,2 The corresponding joint DL / UL TCI states can be sequentially mapped to the scheduled DL / UL communications with TRP 406 and 408, respectively.

[0139] In one configuration, at least one set of joint DL and UL TCI states is activated and applied to scheduled communications with multiple TRPs via DL and UL based on a pre-configuration. That is, UE 402 can be pre-configured to have at least one set of joint DL / UL TCI states C0, C1, ..., C2 activated. N This applies to scheduled UL / DL communications with multiple TRPs. In one configuration, UE 402 can receive a configuration from base station 404 associated with TRP 406 and the multiple TRPs, indicating a mapping between at least one set of activated joint DL and UL TCI states and scheduled communications with the multiple TRPs via DL and UL. This configuration can be received via RRC signaling, MAC-CE, or DCI.

[0140] In one configuration, the MAC-CE includes a bitmap indicating at least one TCI code point (see [link]). Figure 4 For example, a bitmap can be indicated by C0 as the first code point mapped to code point value 0, by C1 as the second code point mapped to code point value 1, ..., and by C... N The indicator is the (N+1)th code point mapped to code point value N. Each TCI code point in at least one TCI code point includes a set of TCI state IDs corresponding to at least one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state. In one configuration, one TCI code point in at least one TCI code point is associated with the default joint common DL and UL beam set. For example, the first code point mapped to code point value 0 may specify a TCI state ID associated with the default joint common DL / UL beam set, and the remaining code points mapped to code point values ​​1 through N may specify TCI state IDs associated with non-default joint common DL / UL beams. For another example, the last code point mapped to code point value N may specify a TCI state ID associated with the default joint common DL / UL beam set, and the remaining code points mapped to code point values ​​0 through N-1 may specify TCI state IDs associated with non-default joint common DL / UL beams.

[0141] In one configuration, the set of at least one activated joint DL and UL TCI states, activated DL TCI states, or activated UL TCI states includes multiple sets of activated joint DL and UL TCI states, activated DL TCI states, or activated UL TCI states. Each set corresponds to one TCI code point.

[0142] In one configuration, the UE receives a DCI from a TRP, the DCI schedules communication with multiple TRPs via DL and UL, and indicates the TCI code point used for the scheduled communication. For example, refer to... Figure 5 , Figure 16 UE 402 receives DCI 414 from TRP 406. DCI 414 schedules communication 416 with multiple TRPs via DL / UL and indicates the TCI code point (code point value 0 to N) for the scheduled DL / UL communication. In this configuration, the scheduled communication with multiple TRPs via DL and UL is based on the indicated TCI code point.

[0143] In one configuration, the UE receives a DCI from a TRP, the DCI indicating the TCI code point for communication scheduled by the DCI. Furthermore, the UE receives at least one DCI, which schedules communication with multiple TRPs via DL and UL. The DCI indicating the TCI code point and the at least one scheduling DCI are different DCIs. Communication with multiple TRPs via DL and UL scheduled via at least one DCI is based on the received TCI code point. For example, refer to... Figures 4-7 , Figures 4-7 UE 402 can receive DCI 414 from TRP 406, where DCI 414 indicates a TCI code point (code point value 0 to N) for DL / UL communication scheduled via DCI. Furthermore, UE 402 can receive at least one subsequent DCI 414, which schedules DL / UL communication 416 with multiple TRPs 406 and 408 via DL / UL. The communication 416 with multiple TRPs 406 and 408 via DL / UL scheduled via at least one DCI is based on the received TCI code point, which provides a joint UL / DL TCI status indicating common beams 502 and 504 for communication with TRPs 406 and 408 respectively.

[0144] In one configuration, the UE receives a DCI from a TRP, which schedules communication with multiple TRPs via DL and UL. The DCI does not include TCI code point information. In this configuration, the scheduled communication with multiple TRPs via DL and UL is based on a default TCI code point indicated in the MAC-CE. The default TCI code point is associated with a default joint common DL and UL beamset.

[0145] Figure 17This is a flowchart 1600 of a wireless communication method. The method can be performed by a TRP or a base station or a component of a TRP or a base station (e.g., base station 102, 180, 310, 704; device 1802; processing system, which may include memory 376, and may be the entire base station or components of a base station, such as antenna 320, receiver 318RX, RX processor 370, controller / processor 375, etc.). The method described herein can provide various benefits, such as improved communication signaling, resource utilization, and / or power savings.

[0146] At 1602, the TRP can send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE). The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL, such as when combined. Figure 3 As described in the example. For example, TRP 704 may send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the User Equipment (UE), the MAC-CE activating at least one set of joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs, each of the activated joint DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated DL TCI states indicating a beam for communication in the DL, and each of the activated UL TCI states indicating a beam for communication in the UL. Furthermore, 1602 may be performed by determining component 1840.

[0147] At 1604, the TRP can communicate with the UE via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, such as combining... Figures 14-15As described in the examples. For example, TRP 704 can communicate with the UE via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state. Furthermore, 1604 can be performed by the determining component 1840.

[0148] Figures 14-15 This is a schematic diagram 1700 illustrating an example of a hardware implementation for device 1702. Device 1702 is a UE and includes: a cellular baseband processor 1704 (also referred to as a modem) coupled to a cellular RF transceiver 1722 and one or more Subscriber Identity Module (SIM) cards 1720; an application processor 1706 coupled to a Secure Digital Card (SD) card 1708 and a screen 1710; a Bluetooth module 1712; a Wireless Local Area Network (WLAN) module 1714; a Global Positioning System (GPS) module 1716; and a power supply 1718. The cellular baseband processor 1704 communicates with UE 104 and / or BS 102 / 180 via the cellular RF transceiver 1722. The cellular baseband processor 1704 may include computer-readable media / memory. The computer-readable media / memory may be non-transitory. The cellular baseband processor 1704 is responsible for general processing, including executing software stored on the computer-readable media / memory. When executed by the cellular baseband processor 1704, the software causes the cellular baseband processor 1704 to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by the cellular baseband processor 1704 during software execution. The cellular baseband processor 1704 also includes a receiving component 1730, a communication manager 1732, and a transmitting component 1734. The communication manager 1732 includes one or more of the components shown. The components within the communication manager 1732 can be stored in a computer-readable medium / memory and / or configured as hardware within the cellular baseband processor 1704. The cellular baseband processor 1704 can be a component of the UE 350 and can include at least one of the TX processor 368, the RX processor 356, and the controller / processor 359 and / or memory 360. In one configuration, the device 1702 can be a modem chip and only includes the baseband processor 1704; in another configuration, the device 1702 can be the entire UE (e.g., see...). Figure 18 (350) and includes the aforementioned additional module of device 1702.

[0149] Cellular baseband processor 1704 includes a receiver component 1730 configured to receive a Media Access Control (MAC) control element (CE) (MAC-CE) from a Transmit Receive Point (TRP). The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL, each activated DL TCI state indicates a beam for communication in the DL, and each activated UL TCI state indicates a beam for communication in the UL. Communication manager 1732 includes a joint DL / UL TCI state activation component 1740 configured to process the received MAC-CE and map the joint DL / UL TCI states to scheduled DL / UL communications. The communication manager 1732 coordinates with the receiving component 1730 to select the receive beam for receiving scheduled communications on the DL, and with the transmitting component 1734 to select the transmit beam for transmitting scheduled communications on the UL, based on the mapped joint DL / UL TCI state. Both the receiving component 1730 and the transmitting component 1734 are configured to communicate with multiple TRPs via the DL and UL, respectively, based on the activated joint DL and UL TCI states.

[0150] In one configuration, receiving component 1730 is configured to receive DCI from TRPs, and the DCI schedules communication with multiple TRPs via DL and UL. In one configuration, the communication with multiple TRPs via DL and UL scheduled at receiving component 1730 and transmitting component 1734 is associated with at least one of PDCCH, PDSCH, CSI-RS, or PRS for DL ​​and at least one of PUCCH, PUSCH, SRS, or PRACH for UL. In one configuration, the communication with multiple TRPs via DL and UL scheduled at receiving component 1730 and transmitting component 1734 is via at least one of FDM, TDM, or SDM. In one configuration, at least one set of activated joint DL and UL TCI states includes a set of activated joint DL and UL TCI states, and an activated set of joint DL and UL TCI states (activated by joint DL / UL TCI state activation component 1740) is sequentially applied to the scheduled communication with multiple TRPs via DL and UL. In one configuration, at least one set of activated joint DL and UL TCI states is applied (by the joint DL / UL TCI state activation component 1740) based on a pre-configured setting to scheduled communications with multiple TRPs via DL and UL. In one configuration, the receiving component 1730 is configured to receive a configuration from base stations 102 / 180 / 404 associated with the TRPs and multiple TRPs, indicating a mapping between at least one set of activated joint DL and UL TCI states and scheduled communications with multiple TRPs via DL and UL. In one configuration, this configuration is received via one of RRC signaling, MAC-CE, or DCI. In one configuration, the MAC-CE includes a bitmap indicating at least one TCI code point. Each of the at least one TCI code point includes a set of TCI state IDs corresponding to at least one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state. In one configuration, one of the at least one TCI code points is associated with the default joint common DL and UL beam set.

[0151] In one configuration, the active at least one set of the combined DL and UL TCI states, the activated DL TCI states, or the activated UL TCI states includes multiple sets of activated combined DL and UL TCI states, activated DL TCI states, or activated UL TCI states. Each set corresponds to one TCI code point. In one configuration, the receiving component 1730 is configured to receive a DCI from a TRP, the DCI scheduling communication with multiple TRPs via DL and UL and indicating the TCI code point for the scheduled communication. In such a configuration, the scheduled communication with multiple TRPs via DL and UL is based on the indicated TCI code point. In one configuration, the receiving component 1730 is configured to receive a DCI from a TRP, the DCI indicating the TCI code point for communication scheduled by the DCI. Furthermore, the receiving component 1730 is configured to receive at least one DCI, the at least one DCI scheduling communication with multiple TRPs via DL and UL. Communication with multiple TRPs via DL and UL scheduled via at least one DCI is based on the received TCI code point. In one configuration, the receiving component 1730 is configured to receive a DCI from a TRP, the DCI scheduling communication with multiple TRPs via DL and UL. The DCI does not include TCI code point information. In this configuration, the scheduled communication with multiple TRPs via DL and UL is based on a default TCI code point indicated in the MAC-CE. The default TCI code point is associated with a default joint common DL and UL beamset.

[0152] The device may include the ability to perform the above-described actions. Figure 16 The flowchart shows the algorithm's additional components in each box. Therefore, the above... Figure 16 Each box in the flowchart can be executed by a component, and the apparatus can include one or more of those components. Each component can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0153] In one configuration, device 1702 (and specifically, cellular baseband processor 1704) includes: a unit for receiving a MAC-CE from a TRP, the MAC-CE activating at least one set of joint DL and UL TCI states for a plurality of TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Device 1702 (and specifically, cellular baseband processor 1704) also includes: a unit for communicating with the plurality of TRPs via the DL and UL based on the activated joint DL and UL TCI states.

[0154] In one configuration, device 1702 (and specifically, cellular baseband processor 1704) further includes a unit for receiving DCI from TRPs, wherein the DCI schedules communication with multiple TRPs via DL and UL. In one configuration, the scheduled communication with multiple TRPs via DL and UL is associated with at least one of PDCCH, PDSCH, CSI-RS, or PRS for DL ​​and at least one of PUCCH, PUSCH, SRS, or PRACH for UL. In one configuration, the scheduled communication with multiple TRPs via DL and UL is via at least one of FDM, TDM, or SDM. In one configuration, at least one set of activated joint DL and ULTCI states includes a set of activated joint DL and UL TCI states, and the activated set of joint DL and ULTCI states is sequentially applied to the scheduled communication with multiple TRPs via DL and UL. In one configuration, at least one set of activated joint DL and UL TCI states is applied to scheduled communications with multiple TRPs via DL and UL based on a pre-configured structure. In one configuration, apparatus 1702 (and specifically, cellular baseband processor 1704) further includes a unit for receiving a configuration from a base station associated with the TRPs and multiple TRPs, the configuration indicating a mapping between at least one set of activated joint DL and UL TCI states and scheduled communications with multiple TRPs via DL and UL. In one configuration, the configuration is received via one of RRC signaling, MAC-CE, or DCI. In one configuration, MAC-CE includes a bitmap indicating at least one TCI code point. Each of the at least one TCI code point includes a set of TCI state IDs corresponding to at least one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state. In one configuration, one of the at least one TCI code points is associated with a default joint common DL and UL beam set. In one configuration, the active set of at least one of the combined DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state includes multiple sets of activated combined DL and UL TCI states, activated DL TCI states, or activated UL TCI states. Each set corresponds to one TCI code point. In one configuration, device 1702 (and specifically, cellular baseband processor 1704) further includes a unit for receiving DCI from TRPs, the DCI scheduling communication with multiple TRPs via DL and UL, and indicating the TCI code point for the scheduled communication. The scheduled communication with multiple TRPs via DL and UL is based on the indicated TCI code point.In one configuration, device 1702 (and specifically, cellular baseband processor 1704) further includes: a unit for receiving a DCI from a TRP, the DCI indicating a TCI code point for communication scheduled by the DCI; and a unit for receiving at least one DCI, the at least one DCI scheduling communication with multiple TRPs via DL and UL. Communication with multiple TRPs via DL and UL scheduled via at least one DCI is based on the received TCI code point. In another configuration, device 1702 (and specifically, cellular baseband processor 1704) further includes: a unit for receiving a DCI from a TRP, the DCI scheduling communication with multiple TRPs via DL and UL. The DCI does not include TCI code point information. The scheduled communication with multiple TRPs via DL and UL is based on a default TCI code point indicated in the MAC-CE. The default TCI code point is associated with a default joint common DL and UL beamset.

[0155] The aforementioned unit may be one or more of the components of the device 1702 / cellular baseband processor 1704 configured to perform the functions described therein. As described above, the device 1702 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Therefore, in one configuration, the aforementioned unit may be the TX processor 368, the RX processor 356, and the controller / processor 359, configured to perform the functions described therein.

[0156] ​ This is a schematic diagram 1800 illustrating an example of a hardware implementation for device 1802. Device 1802 is a base station and includes a baseband unit 1804. Baseband unit 1804 can communicate with UE 104 via a cellular RF transceiver. Baseband unit 1804 may include computer-readable medium / memory. Baseband unit 1804 is responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by baseband unit 1804, the software causes baseband unit 1804 to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by baseband unit 1804 when executing the software. Baseband unit 1804 also includes a receiving component 1830, a communication manager 1832, and a transmitting component 1834. Communication manager 1832 includes one or more of the components shown. Components within communication manager 1832 may be stored in computer-readable medium / memory and / or configured as hardware within baseband unit 1804. The baseband unit 1804 may be a component of the BS 310 and may include at least one of the TX processor 316, the RX processor 370 and the controller / processor 375 and / or the memory 376.

[0157] The communication manager 1832 includes a determining component 1840 configured to send a Media Access Control (MAC) Control Element (CE) (MAC-CE) to the user equipment (UE). The MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transport Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL, for example, as described above in conjunction with step 1602. The determining component 1840 can also be configured to communicate with the UE via DL and UL based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated UL TCI state, for example, as described above in conjunction with step 1604.

[0158] The device may include the ability to perform the above-described actions. ​ The flowchart shows the algorithm's additional components in each box. Therefore, the above... ​ Each box in the flowchart can be executed by a component, and the apparatus can include one or more of those components. Each component can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0159] In one configuration, apparatus 1802 (and specifically, baseband unit 1804) includes: a unit for transmitting a Media Access Control (MAC) Control Element (CE) (MAC-CE) to a User Equipment (UE), wherein the MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs, each of the activated joint DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated DL TCI states indicating a beam for communication in the DL, and each of the activated UL TCI states indicating a beam for communication in the UL. Apparatus 1802 may further include: a unit for communicating with the UE via DL and UL based on the activated joint DL and UL TCI states, the activated DL TCI states, or the activated UL TCI states. The aforementioned unit may be one or more of the components of the device 1802 configured to perform the functions described therein. As described above, the device 1802 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Therefore, in one configuration, the aforementioned unit may be the TX processor 316, the RX processor 370, and the controller / processor 375, configured to perform the functions described therein.

[0160] It is to be understood that the specific order or hierarchy of the boxes in the disclosed process / flowchart is illustrative of the example method. It is to be understood that the specific order or hierarchy of the boxes in the process / flowchart may be rearranged based on design preferences. Furthermore, some boxes may be combined or omitted. The appended method claims give the elements of the boxes in the example order, but are not intended to limit one to the specific order or hierarchy given.

[0161] The foregoing description is provided to enable any person skilled in the art to implement the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but are to be given the full scope consistent with the language of the claims, wherein, unless expressly stated otherwise, reference to a singular element is not intended to mean “one and only one”, but rather “one or more”. The term “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or superior to other aspects. Unless expressly stated otherwise, the term “some” refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" can 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 of the elements described throughout the various aspects of this disclosure that are known or will later become known to one of ordinary skill in the art are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is expressly stated in the claims. The terms "module", "mechanism", "element", "device", etc., may not be a substitute for the term "unit". Therefore, no element of a claim should be construed as a functional unit unless the element is expressly stated using the phrase "unit for...".

[0162] The following aspects are illustrative only and may be combined with other aspects or teachings described herein without limitation.

[0163] Aspect 1 is an apparatus for wireless communication at a UE, comprising: at least one processor coupled to a memory and configured to: receive a Media Access Control (MAC) control element (CE) (MAC-CE) from a Transmit Receive Point (TRP), the MAC-CE activating a configured subset of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a configured UL TCI state, each of the activated joint DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated joint DL and UL TCI states indicating a beam for communication in the DL, each of the activated UL TCI states indicating a beam for communication in the UL, the MAC-CE indicating a CORESET pool identifier (ID) associated with a set of Control Resource Sets (CORESETs); and based on the activated joint DL and UL TCI states, the activated DL TCI states, or the activated UL TCI states... The TCI status is used to communicate with the TRP via DL and UL scheduled through one or more CORESETs in the CORESET set associated with the CORESET pool ID.

[0164] Aspect 2 is the apparatus according to aspect 1, wherein the MAC-CE includes a bitmap indicating which of the CORESET pool ID and the configured combined DL and UL TCI states, the configured DL TCI states, or the configured UL TCI states are activated in association with the CORESET pool ID.

[0165] Aspect 3 is the apparatus according to any one of Aspects 1 and 2, wherein each of the activated joint DL and ULTCI state, the activated DL TCI state, or the activated ULTCI state is associated with at least one of the following: physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), channel state information (CSI) reference signal (RS) (CSI-RS) or positioning RS (PRS) for DL, and at least one of the following: physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), sounding reference signal (SRS) or physical random access channel (PRACH) for UL.

[0166] Aspect 4 is the apparatus according to any one of aspects 1 to 3, wherein each of the activated joint DL and ULTCI state, the activated DL TCI state, or the activated UL TCI state is associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS for DL ​​scheduled by CORESET associated with the CORESET pool ID, and is associated with at least one of the PUCCH, PUSCH, SRS, or PRACH for UL scheduled by CORESET associated with the CORESET pool ID.

[0167] Aspect 5 is an apparatus according to any one of aspects 1 to 4, wherein the at least one processor is further configured to: receive a configuration indicating which of at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID applies to each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state, and indicating which of at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID applies to each of the activated joint DL and UL TCI states.

[0168] Aspect 6 is the apparatus according to any one of aspects 1 to 5, wherein the configuration is received via at least one of Radio Resource Control (RRC) signaling, the MAC-CE, or Downlink Control Information (DCI).

[0169] Aspect 7 is an apparatus according to any one of aspects 1 to 6, wherein the at least one processor is further configured to: receive downlink control information (DCI) in a CORESET associated with the CORESET pool ID, the DCI indicating an index of a TCI code point corresponding to one of the activated combined DL and UL TCI states, the activated DLTCI state, or the activated UL TCI state associated with the CORESET pool ID.

[0170] Aspect 8 is an apparatus according to any one of aspects 1 to 7, wherein the combined DL and UL TCI state, DL TCI state or UL TCI state activated in the MAC-CE is mapped to the TCI code point using a sequential index, the TCI code point being associated with the CORESET pool ID.

[0171] Aspect 9 is an apparatus according to any one of aspects 1 to 8, wherein the received DCI scheduling is via the communication of DL or UL, and the communication via the communication of DL or UL scheduled by the DCI is based on one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state corresponding to the index of the TCI code point indicated by the DCI.

[0172] Aspect 10 is an apparatus according to any one of aspects 1 to 9, wherein the at least one processor is further configured to: determine the DL and UL resources for the communication to which one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state corresponds to the index of the TCI code point indicated by the DCI, the determined DL and UL resources being scheduled by the one or more CORESETs associated with the CORESET pool ID.

[0173] Aspect 11 is an apparatus according to any one of aspects 1 to 10, wherein the DL resources and UL resources for the communication are pre-configured or predetermined.

[0174] Aspect 12 is an apparatus according to any one of aspects 1 to 11, wherein the at least one processor is further configured to: receive an indication of the DL resources and the UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID, wherein the DL resources and the UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID are determined based on the received indication.

[0175] Aspect 13 is the apparatus according to any one of aspects 1 to 12, wherein the indication is received via radio resource control (RRC) signaling, the MAC-CE, or the DCI.

[0176] Aspect 14 is the apparatus according to any one of aspects 1 to 13, further comprising: a transceiver coupled to the at least one processor.

[0177] Aspect 15 is a method for implementing wireless communication in any of aspects 1 to 14.

[0178] Aspect 16 is a device for wireless communication, including units for implementing any one of aspects 1 to 14.

[0179] Aspect 17 is a computer-readable medium storing computer-executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 1 to 14.

[0180] Aspect 18 is an apparatus for wireless communication at a Transmitter Point (TRP), comprising: at least one processor coupled to a memory and configured to: receive a Media Access Control (MAC) Control Element (CE) (MAC-CE) from a Transmitter Receiver Point (TRP), the MAC-CE activating at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for a plurality of TRPs, each of the activated joint DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated DL TCI states indicating a beam for communication in the DL, each of the activated UL TCI states indicating a beam for communication in the UL; and communicating with the plurality of TRPs via the DL and UL based on the activated joint DL and UL TCI states, the activated DL TCI states, or the activated UL TCI states.

[0181] Aspect 19 is the apparatus according to aspect 18, wherein the at least one processor is further configured to: receive downlink control information (DCI) from the TRP, the DCI scheduling the communication with the plurality of TRPs through the DL and the UL.

[0182] Aspect 20 is an apparatus according to any one of aspects 18 and 19, wherein the scheduled communication with the plurality of TRPs via the DL and the UL is associated with at least one of a Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS) or Positioning RS (PRS) for the DL and at least one of a Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sound Reference Signal (SRS) or Physical Random Access Channel (PRACH) for the UL.

[0183] Aspect 21 is an apparatus according to any one of aspects 18 to 20, wherein the scheduled communication with the plurality of TRPs via the DL and the UL is performed via at least one of the following: frequency division multiplexing (FDM), time division multiplexing (TDM), or space division multiplexing (SDM).

[0184] Aspect 22 is an apparatus according to any one of aspects 18 to 21, wherein the at least one set of activated joint DL and ULTCI states includes a set of activated joint DL and ULTCI states, and the activated set of joint DL and ULTCI states is sequentially applied to scheduled communications with the plurality of TRPs via the DL and the ULTCI.

[0185] Aspect 23 is an apparatus according to any one of aspects 18 to 22, wherein at least one set of activated joint DL and UL TCI states is applied to scheduled communications with the plurality of TRPs via the DL and the UL based on a pre-configuration.

[0186] Aspect 24 is an apparatus according to any one of aspects 18 to 23, wherein the at least one processor is further configured to receive configuration from a base station associated with the TRP and the plurality of TRPs, the configuration indicating a mapping between at least one set of activated joint DL and ULTCI states and scheduled communications with the plurality of TRPs via the DL and the ULTCI.

[0187] Aspect 25 is the apparatus according to any one of aspects 18 to 24, wherein the configuration is received via radio resource control (RRC) signaling, the MAC-CE, or the DCI.

[0188] Aspect 26 is an apparatus according to any one of aspects 18 to 25, wherein the MAC-CE includes a bitmap indicating at least one TCI code point, each of the at least one TCI code points including a set of TCI state identifiers (IDs) corresponding to at least one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state.

[0189] Aspect 27 is an apparatus according to any one of aspects 18 to 26, wherein one of the at least one TCI code points is associated with a default joint common DL and UL beam set.

[0190] Aspect 28 is an apparatus according to any one of aspects 18 to 27, wherein the combined DL and UL TCI state, the activated DL TCI state, or at least one set of activated UL TCI states comprises multiple sets of activated combined DL and UL TCI states, activated DL TCI states, or activated UL TCI states, each set corresponding to a TCI code point.

[0191] Aspect 29 is an apparatus according to any one of aspects 18 to 28, wherein the at least one processor is further configured to: receive downlink control information (DCI) from the TRP, the DCI scheduling the communication with the plurality of TRPs via the DL and the UL, and indicating TCI code points for the scheduled communication, wherein the scheduled communication with the plurality of TRPs via the UL and DL is based on the indicated TCI code points.

[0192] Aspect 30 is an apparatus according to any one of aspects 18 to 29, further comprising: a transceiver coupled to the at least one processor, wherein the at least one processor is further configured to: receive downlink control information (DCI) from the TRP, the DCI indicating TCI code points for communication scheduled by the DCI; and receive at least one DCI, the at least one DCI scheduling the communication with the plurality of TRPs via the DL and the UL, the communication with the plurality of TRPs scheduled via the at least one DCI via the UL and the DL being based on the received TCI code points.

[0193] Aspect 31 is an apparatus according to any one of aspects 18 to 30, wherein the at least one processor is further configured to: receive downlink control information (DCI) from the TRP, the DCI scheduling the communication with the plurality of TRPs through the DL and the UL, the DCI not including TCI code point information, wherein the scheduled communication with the plurality of TRPs through the DL and UL is based on a default TCI code point indicated in the MAC-CE, the default TCI code point being associated with a default joint common DL and UL beam set.

[0194] Aspect 32 is a method for implementing wireless communication in any of aspects 18 to 31.

[0195] Aspect 33 is a device for wireless communication, including units for implementing any of aspects 18 to 31.

[0196] Aspect 34 is a computer-readable medium storing computer-executable code, wherein when executed by a processor, the code causes the processor to implement any one of aspects 18 to 31.

Claims

1. An apparatus for wireless communication at a user equipment (UE), comprising: Memory; as well as At least one processor, coupled to the memory, is configured to: The transmit-receive point (TRP) receives a medium access control (MAC) control element (CE) (MAC-CE) that activates a configured combined downlink (DL) and uplink (UL) transmission configuration indicator (TCI) state, a configured DL TCI state, or a subset of a configured UL TCI state. Each activated combined DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. The MAC-CE indicates a CORESET pool identifier (ID) associated with a control resource set (CORESET) set. The configuration indicates which of at least one of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) scheduled by the CORESET associated with the CORESET pool ID applies to the activated joint DL and UL TCI state or each of the activated DL TCI state; and indicates which of at least one of the Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random Access Channel (PRACH) scheduled by the CORESET associated with the CORESET pool ID applies to the activated joint DL and UL TCI state or each of the activated UL TCI state; and Based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated ULTCI state, and based on the configuration, the TRP communicates with the DL and UL via one or more CORESETs in the CORESET set associated with the CORESET pool ID.

2. The apparatus according to claim 1, wherein, The MAC-CE includes a bitmap indicating which of the CORESET pool ID and the configured combined DL and UL TCI states, the configured DL TCI state, or the configured ULTCI state are activated in association with the CORESET pool ID.

3. The apparatus according to claim 1, wherein, Each of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state is associated with at least one of the PDCCH, PDSCH, CSI-RS, or PRS scheduled for DL ​​by a CORESET associated with the CORESET pool ID, and with at least one of the PUCCH, PUSCH, SRS, or PRACH scheduled for UL by a CORESET associated with the CORESET pool ID.

4. The apparatus according to claim 1, wherein, The configuration is received via at least one of Radio Resource Control (RRC) signaling, the MAC-CE, or Downlink Control Information (DCI).

5. The apparatus according to claim 1, wherein, The at least one processor is further configured to: Downlink control information (DCI) is received in a CORESET associated with the CORESET pool ID. The DCI indicates an index of a TCI code point, which corresponds to one of the activated combined DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state associated with the CORESET pool ID.

6. The apparatus according to claim 5, wherein, The combined DL and UL TCI state, DLTCI state, or UL TCI state activated in the MAC-CE is mapped to the TCI code point using a sequential index, and the TCI code point is associated with the CORESET pool ID.

7. The apparatus according to claim 5, wherein, The received DCI scheduling is carried out via the communication of DL or UL, and the communication of DL or UL via the DCI scheduling is based on one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state, corresponding to the index of the TCI code point indicated by the DCI.

8. The apparatus according to claim 5, wherein, The at least one processor is further configured to: The DL and UL resources for the communication to which one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated ULTCI state corresponds to the index of the TCI code point indicated by the DCI is applied, are determined, and the determined DL and UL resources are scheduled by the one or more CORESETs associated with the CORESET pool ID.

9. The apparatus according to claim 8, wherein, The DL resources and UL resources used for the communication are pre-configured or predetermined.

10. The apparatus according to claim 8, wherein, The at least one processor is further configured to: Receive an indication of the DL resources and the UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID, wherein the DL resources and the UL resources scheduled for the communication by the one or more CORESETs associated with the CORESET pool ID are determined based on the received indication.

11. The apparatus according to claim 10, wherein, The instruction is received via one of Radio Resource Control (RRC) signaling, the MAC-CE, or the DCI.

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

13. An apparatus for conducting wireless communication at a user equipment (UE), comprising: Memory; as well as At least one processor, coupled to the memory, is configured to: A Media Access Control (MAC) Control Element (CE) (MAC-CE) is received from a Transmitter Receiver Point (TRP) to activate at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs. Each activated joint DL and UL TCI state indicates a common beam for communication in the DL and UL. Each activated DL TCI state indicates a beam for communication in the DL. Each activated UL TCI state indicates a beam for communication in the UL. Receive a first configuration, the first configuration indicating which of at least one of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL ​​is applicable to each of the activated joint DL and UL TCI state or the activated DL TCI state, and indicating which of at least one of the Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sound Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL is applicable to each of the activated joint DL and UL TCI state or the activated UL TCI state; and Based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated ULTCI state, and based on the first configuration, communication is made with the plurality of TRPs via DL and UL.

14. The apparatus according to claim 13, wherein, The at least one processor is further configured to: Downlink control information (DCI) is received from the TRP, and the DCI schedules the communication with the plurality of TRPs through the DL and the UL.

15. The apparatus according to claim 14, wherein, The scheduled communication with the plurality of TRPs via the DL and the UL is performed through at least one of the following: frequency division multiplexing (FDM), time division multiplexing (TDM), or space division multiplexing (SDM).

16. The apparatus according to claim 14, wherein, The at least one set of activated joint DL and UL TCI states includes a set of activated joint DL and UL TCI states, and the activated set of joint DL and UL TCI states is sequentially applied to scheduled communications with the plurality of TRPs via the DL and the UL.

17. The apparatus according to claim 14, wherein, At least one set of activated joint DL and UL TCI states is applied to scheduled communications with the plurality of TRPs via the DL and the UL based on pre-configuration.

18. The apparatus according to claim 14, wherein, The at least one processor is further configured to: A second configuration is received from a base station associated with the TRP and the plurality of TRPs, the second configuration indicating a mapping between at least one set of activated joint DL and UL TCI states and scheduled communications with the plurality of TRPs via the DL and the UL.

19. The apparatus according to claim 18, wherein, The first or second configuration is received via Radio Resource Control (RRC) signaling, the MAC-CE, or the DCI.

20. The apparatus according to claim 13, wherein, The MAC-CE includes a bitmap indicating at least one TCI code point, each of the at least one TCI code point including a set of TCI state identifiers (IDs) corresponding to at least one of the activated joint DL and UL TCI states, the activated DL TCI state, or the activated UL TCI state.

21. The apparatus according to claim 20, wherein, One of the at least one TCI code points is associated with the default joint public DL and UL beam set.

22. The apparatus according to claim 13, wherein, The combined DL and ULTCI state, the activated DLTCI state, or the activated ULTCI state comprises at least one set of activated combined DL and ULTCI states, activated DL TCI states, or activated ULTCI states, each set corresponding to a TCI code point.

23. The apparatus according to claim 22, wherein, The at least one processor is further configured to: Downlink control information (DCI) is received from the TRP, the DCI scheduling the communication with the plurality of TRPs through the DL and the UL and indicating the TCI code point for the scheduled communication, wherein the scheduled communication with the plurality of TRPs through the DL and UL is based on the indicated TCI code point.

24. The apparatus of claim 22, further comprising a transceiver coupled to the at least one processor, wherein, The at least one processor is further configured to: Receive downlink control information (DCI) from the TRP, the DCI indicating the TCI code point for communication used for DCI scheduling; as well as At least one DCI is received, the at least one DCI scheduling the communication with the plurality of TRPs via the DL and the UL, the communication with the plurality of TRPs via the UL and the DL scheduled by the at least one DCI being based on the received TCI code points.

25. The apparatus according to claim 22, wherein, The at least one processor is further configured to: Downlink control information (DCI) is received from the TRP, the DCI scheduling communication with the plurality of TRPs through the DL and the UL, the DCI not including TCI code point information, wherein the scheduled communication with the plurality of TRPs through the DL and UL is based on a default TCI code point indicated in the MAC-CE, the default TCI code point being associated with a default joint common DL and UL beam set.

26. An apparatus for wireless communication at a transmit-receive point (TRP), comprising: Memory; as well as At least one processor, coupled to the memory, is configured to: A Media Access Control (MAC) Control Element (CE) (MAC-CE) is sent to the User Equipment (UE), wherein the MAC-CE activates a configured set of Combined Downlink (DL) and Uplink (UL) Transmission Configuration Indicator (TCI) states, a configured DL TCI state, or a subset of a configured UL TCI state, each of the activated Combined DL and UL TCI states indicating a common beam for communication in the DL and UL, each of the activated DL TCI states indicating a beam for communication in the DL, each of the activated UL TCI states indicating a beam for communication in the UL, and the MAC-CE indicating a CORESET pool identifier (ID) associated with a Control Resource Set (CORESET) set. Send configuration indicating which of at least one of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) scheduled by the CORESET associated with the CORESET pool ID applies to the activated joint DL and UL TCI state or each of the activated DL TCI state; and indicating which of at least one of the Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sound Reference Signal (SRS), or Physical Random Access Channel (PRACH) scheduled by the CORESET associated with the CORESET pool ID applies to the activated joint DL and UL TCI state or each of the activated UL TCI state; and Based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated ULTCI state, and based on the configuration, the UE communicates with the DL and UL via one or more CORESETs in the CORESET set associated with the CORESET pool ID.

27. An apparatus for wireless communication at a transmit-receive point (TRP), comprising: Memory; as well as At least one processor, coupled to the memory, is configured to: A Media Access Control (MAC) Control Element (CE) (MAC-CE) is sent to the User Equipment (UE), wherein the MAC-CE activates at least one set of joint downlink (DL) and uplink (UL) Transmission Configuration Indicator (TCI) states, DL TCI states, or UL TCI states for multiple TRPs, each of the activated joint DL and UL TCI states indicating a common beam for communication in DL and UL, each of the activated DL TCI states indicating a beam for communication in DL, and each of the activated UL TCI states indicating a beam for communication in UL. Send a first configuration indicating which of at least one of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information (CSI) Reference Signal (RS) (CSI-RS), or Positioning RS (PRS) for DL ​​applies to each of the activated joint DL and UL TCI state or the activated DL TCI state; and indicating which of at least one of the Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Sound Reference Signal (SRS), or Physical Random Access Channel (PRACH) for UL applies to each of the activated joint DL and UL TCI state or the activated UL TCI state; and Based on the activated joint DL and UL TCI state, the activated DL TCI state, or the activated ULTCI state, and based on the first configuration, the UE is communicated via DL and UL.

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