Transmitting configuration indicator (TCI) indication across component carrier (CC)
By activate the TCI state of the CC associated with different TRP modes using a single MAC-CE or DCI command in a wireless communication system, the problem of excessive signaling overhead and power consumption is solved, and the system efficiency and performance is improved.
Patent Information
- Application Number
- CN202280102118.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-03
- Publication Date
- 2025-07-04
AI Technical Summary
When existing wireless communication systems manage the transmission configuration indicator (TCI) status of component carriers (CCs) associated with different transmission and reception points (TRP) modes, there are problems of excessive signaling overhead and power consumption. Especially when different TRP modes are associated in the CC list, the current unified TCI state activation architecture is not applicable.
The TCI states of multiple CCs associated with different TRP modes in the pre-configured CC list are activated by using a single media access control (MAC)-control element (CE) or downlink control information (DCI) command, thereby improving system efficiency by reducing signaling overhead and power consumption.
By activating the TCI state of multiple CCs with a single command, signaling overhead and power consumption are reduced, and the efficiency and performance of wireless communication systems are improved.
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Figure CN120266427A_ABST
Abstract
Description
Background Art Technical Field
[0001] Aspects of the present disclosure relate to wireless communication, and more particularly, to techniques for managing activation of transmission configuration indicator (TCI) states for component carriers (CCs) associated with different transmit receive point (TRP) modes.
[0002] Description of Related Technologies
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasting, or other similar types of services. These wireless communication systems may employ multiple access technologies capable of supporting communication with those users by sharing available wireless communication system resources with multiple users.
[0004] Despite the significant technological advancements made in wireless communication systems over the years, challenges still remain. For example, complex and dynamic environments can still attenuate or block signals between a wireless transmitter and a wireless receiver. Therefore, there is a continuing expectation to improve the technical performance of wireless communication systems, including for example: improving the speed and data carrying capacity of communication, improving the efficiency of using the shared communication medium, reducing the power consumed by the transmitter and receiver when performing communication, improving the reliability of wireless communication, avoiding redundant transmission and / or reception and associated processing, improving the coverage area of wireless communication, increasing the number and types of devices that can access the wireless communication system, increasing the ability of different types of devices to communicate with each other, increasing the number and types of wireless communication media available for use, etc. Therefore, there is a need to further improve wireless communication systems to overcome the above technical challenges and other challenges. Summary of the Invention
[0005] One aspect provides a method for wireless communication by a user equipment (UE), the method comprising: receiving first signaling that configures the UE using transmission configuration indicator (TCI) states for a set of component carriers (CCs), wherein each CC in the set is associated with one of a plurality of transmit receive point (TRP) modes; receiving an indication to activate one of the TCI states for a first CC in the set; and applying the activated TCI state to the first CC and one or more of the remaining CCs in the set based on at least one of: the type of the indication or the TRP mode associated with the remaining CCs in the set, wherein the remaining CCs in the set include CCs other than the first CC.
[0006] In other aspects, provided are: an apparatus capable of operating, configured to, or otherwise adapted to perform the foregoing methods and those described elsewhere herein; a non-transitory computer-readable medium including instructions that, when executed by a processor of the apparatus, cause the apparatus to perform the foregoing methods and those described elsewhere herein; a computer program product embodied on a computer-readable storage medium, the computer program product including code for performing the foregoing methods and those described elsewhere herein; and an apparatus including components for performing the foregoing methods and those described elsewhere herein. By way of example, an apparatus may include a processing system, a device having a processing system, or processing systems cooperating via one or more networks.
[0007] For purposes of illustration, certain features are set forth in the following description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The drawings depict certain features of the various aspects described herein and should not be considered limiting of the scope of the disclosure.
[0009] Figure 1 An example wireless communication network is depicted.
[0010] Figure 2 An example decomposed base station (BS) architecture is depicted.
[0011] Figure 3 Aspects of an example BS and an example user equipment (UE) are depicted.
[0012] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various example aspects of data structures for a wireless communication network are depicted.
[0013] Figure 5 Transmission configuration indicator (TCI) activation for a component carrier (CC) of a set of CCs associated with the same CC list is depicted.
[0014] Figure 6 A procedure flow of communication in a network between a UE and a network entity is depicted.
[0015] Figure 7 TCI activation for a CC associated with a single transmit receive point (sTRP) mode of a set of CCs associated with the same CC list is depicted.
[0016] Figure 8 TCI activation for a CC associated with multiple downlink control information (mDCI) mTRP modes of a set of CCs associated with the same CC list is depicted.
[0017] Figure 9 Depicts an example first transformation rule from a medium access control (MAC)-control element (CE) in mDCImTRP mode to an sTRP mode MAC-CE and a single downlink control information (sDCI) mTRP mode MAC-CE.
[0018] Figure 10 Depicts an example second transformation rule from an mDCI mTRP mode MAC-CE to an sTRP mode MAC-CE and an sDCI mTRP mode MAC-CE.
[0019] Figure 11 Depicts the TCI activation of a CC associated with an sDCI mTRP mode of a set of CCs associated with the same CC list.
[0020] Figure 12 Depicts a method for wireless communication by a UE.
[0021] Figure 13 Depicts an example communication device. Detailed Description
[0022] Aspects of the present disclosure provide an apparatus, method, processing system, and computer-readable medium for managing the activation of transmission configuration indicator (TCI) states of different component carriers (CCs) associated with different transmit receive points (TRP) modes within a preconfigured CC list.
[0023] In some cases, the TCI state is used to indicate the quasi co-location (QCL) relationship between one or more downlink reference signals (DL RS) for a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) and a DMRS antenna port. Two antenna ports are considered to be quasi co-located (QCL) when the channel characteristics through which the symbols on one antenna port pass can be inferred from the symbols on another antenna port.
[0024] Wireless systems such as a New Radio (NR) system support carrier aggregation using multiple CCs. When a user equipment (UE) is configured with multiple CCs in a preconfigured CC list, a single medium access control (MAC) control element (CE) can be used to activate the TCI state in multiple CCs within the preconfigured CC list. For example, when at least each CC within the preconfigured CC list is associated with a single transmit receive point (sTRP), the activation of the MAC-CE TCI state for the first CC in the preconfigured CC list applies to all other CCs in the preconfigured CC list.
[0025] However, in some cases, when different CCs within a preconfigured CC list are associated with different TRP modes such as sTRP mode, multi-downlink control information (mDCI) mTRP mode, and / or single DCI (sDCI) mTRP mode, a MAC-CE indicating activation of a TCI state for a first CC (e.g., associated with sTRP) within the preconfigured CC list will not be directly applicable to a second CC (e.g., associated with mTRP) within the same preconfigured CC list.
[0026] The techniques presented herein allow a single command (e.g., MAC-CE or DCI) to activate the TCI states of multiple CCs associated with different TRP modes within a preconfigured CC list. For example, when a MAC-CE activates the TCI state of a first CC associated with a first TRP mode within a preconfigured CC list, based on the type of the command (i.e., MAC-CE or DCI) and / or the TRP mode associated with other CCs, the activated TCI state is applicable to the first CC and one or more other CCs within the preconfigured CC list. The techniques presented herein can improve system efficiency by reducing signaling overhead and reducing power consumption (e.g., by using a single MAC-CE / DCI to activate the TCI states of multiple CCs).
[0027] Introduction to Wireless Communication Networks
[0028] The techniques and methods described herein can be used in various wireless communication networks. Although aspects herein may be described using terms typically associated with 3G, 4G, and / or 5G wireless technologies, aspects of the present disclosure are equally applicable to other communication systems and standards not explicitly mentioned herein.
[0029] Figure 1 An example of a wireless communication network 100 in which aspects described herein can be implemented is depicted.
[0030] Generally, the wireless communication network 100 includes various network entities (alternatively, network elements or network nodes). Network entities are typically communication devices and / or communication functions performed by communication devices (e.g., user equipment (UE), base station (BS), components of a BS, server, etc.). For example, the various functions of the network and the various devices associated with and interacting with the network can be considered network entities. Additionally, the wireless communication network 100 includes terrestrial aspects and non-terrestrial aspects, terrestrial aspects such as terrestrial-based network entities (e.g., BS 102), non-terrestrial aspects such as satellite 140 and aircraft 145, and the non-terrestrial aspects can include airborne network entities (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and UEs.
[0031] In the depicted example, the wireless communication network 100 includes BS102, UE 104, and one or more core networks such as the Evolved Packet Core (EPC) 160 and 5G Core (5GC) network 190, which interoperate to provide communication services over various communication links including wired and wireless links.
[0032] Figure 1 Depicted are various example UEs 104, which may more generally include: cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players, cameras, game consoles, tablet computers, smart devices, wearable devices, vehicles, utility meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, Internet of Things (IoT) devices, always-on (AON) devices, edge processing devices, or other similar devices. UE 104 may also be more generally referred to as a mobile device, wireless device, wireless communication device, station, mobile station, subscriber station, mobile subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, remote device, access terminal, mobile terminal, wireless terminal, remote terminal, cell phone, and others.
[0033] BS102 communicates wirelessly with UE 104 via communication link 120 (e.g., sends signals to or receives signals from it). The communication link 120 between BS102 and UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from UE 104 to BS102 and / or a downlink (DL) (also referred to as a forward link) transmission from BS102 to UE 104. In various aspects, the communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity.
[0034] BS102 may generally include: NodeB, evolved NodeB (eNB), next-generation evolved NodeB (ng-eNB), next-generation NodeB (gNB or gNodeB), access point, transceiver base station, radio BS, radio transceiver, transceiver function, transmit receive point, and / or others. Each of BS102 may provide communication coverage for a corresponding geographical coverage area 110, which may sometimes be referred to as a cell and in some cases may overlap (e.g., small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of a macro cell). For example, a BS may provide communication coverage for a macro cell (covering a relatively large geographical area), a pico cell (covering a relatively small geographical area such as a stadium), a femto cell (relatively small geographical area (e.g., a home)), and / or other types of cells.
[0035] Although BS102 is depicted as a single communication device in various aspects, BS102 can be implemented in various configurations. For example, one or more components of BS 102 can be decomposed, including a central unit (CU), one or more distributed units (DU), one or more radio units (RU), a near-real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, to name a few examples. In another example, various aspects of BS102 can be virtualized. More generally, a BS (e.g., BS102) can include components located at a single physical location or components located at various physical locations. In an example where BS102 includes components located at various physical locations, the various components can each perform various functions such that the various components together achieve functionality similar to that of BS102 located at a single physical location. In some aspects, a BS102 that includes components located at various physical locations can be referred to as a decomposed radio access network (RAN) architecture, such as an open RAN (O-RAN) or a virtualized RAN (VRAN) architecture. Figure 2 An example decomposed BS architecture is depicted and described.
[0036] Different BS102s within the wireless communication network 100 can also be configured to support different radio access technologies, such as 3G, 4G, and / or 5G. For example, a BS102 configured for 4G LTE (collectively referred to as the evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN)) can interface with the EPC 160 via a first backhaul link 132 (e.g., the S1 interface). A BS102 configured for 5G (e.g., 5G NR or next-generation RAN (NG-RAN)) can interface with the 5GC 190 via a second backhaul link 184. BS102s can communicate directly or indirectly (e.g., via the EPC 160 or the 5GC 190) with each other on a third backhaul link 134 (e.g., the X2 interface), which can be wired or wireless.
[0037] Wireless communication network 100 can subdivide the electromagnetic spectrum into various categories, frequency bands, channels, or other characteristics. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency can also be referred to as carrier, sub-carrier, channel, tone, or sub-band. For example, 3GPP currently defines Frequency Range 1 (FR1) as including 600 MHz to 6 GHz, which is commonly (interchangeably) referred to as "below 6 GHz". Similarly, 3GPP currently defines Frequency Range 2 (FR2) as including 26 GHz to 41 GHz, which is sometimes (interchangeably) referred to as "millimeter wave" ("mmW" or "mmWave"). A BS (e.g., mmWave BS such as BS180) configured to communicate using the mmWave / near mmWave radio frequency band can utilize beamforming (e.g., 182) with a UE (e.g., 104) to improve path loss and range.
[0038] The communication link 120 between BS102 and, for example, UE 104 can be through one or more carriers, which can have different bandwidths (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, and / or other MHz) and can be aggregated in various aspects. The carriers may or may not be adjacent to each other. The allocation of carriers can be asymmetric with respect to DL and UL (e.g., more or fewer carriers can be allocated for DL compared to UL).
[0039] Compared with communication at lower frequencies, communication using higher frequency bands may have higher path loss and shorter range. Therefore, certain BSs (e.g., Figure 1 such as 180 in
[0040] The wireless communication network 100 also includes a Wi-Fi AP 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, the 2.4 GHz and / or 5 GHz unlicensed spectrum.
[0041] Certain UEs 104 may communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 may use one or more sidelink channels, such as, a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), a physical sidelink control channel (PSCCH), and / or a physical sidelink feedback channel (PSFCH).
[0042] The EPC 160 may include various functional components, including: a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and / or a packet data network (PDN) gateway 172, such as in the depicted example. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that processes signaling between the UE 104 and the EPC 160. Generally speaking, the MME 162 provides bearer and connection management.
[0043] Generally speaking, user Internet protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to an IP service 176, which may include, for example, the Internet, an intranet, an IP multimedia subsystem (IMS), a packet switched (PS) streaming media service, and / or other IP services.
[0044] The BM-SC 170 may provide functions for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and / or may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS traffic to BSs 102 belonging to a multicast broadcast single frequency network (MBSFN) area for a particular broadcast service, and / or may be responsible for session management (start / stop) and for collecting eMBMS-related charging information.
[0045] The 5GC 190 may include various functional components, including: an Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. The AMF 192 may communicate with a Unified Data Management (UDM) 196.
[0046] The AMF 192 is a control node that processes signaling between the UE 104 and the 5GC 190. The AMF 192 provides, for example, Quality of Service (QoS) flow and session management.
[0047] Internet Protocol (IP) packets are transferred through the UPF 195, which is connected to an IP service 197 and provides IP address allocation for the UE and other functions for the 5GC 190. The IP service 197 may include, for example, the Internet, an intranet, IMS, a PS streaming service, and / or other IP services.
[0048] The wireless communication network 100 further includes a Transmission Configuration Indicator (TCI) component 198, which may be configured to perform Figure 12 one or more steps of the method 1200. The wireless communication network 100 further includes a TCI component 199, which may be configured to perform Figure 12 one or more steps of the method 1200.
[0049] In various aspects, by way of example, a network entity or network node may be implemented as an aggregated BS, a disaggregated BS, a component of a BS, an Integrated Access and Backhaul (IAB) node, a relay node, a sidelink node.
[0050] Figure 2 An example disaggregated BS200 architecture is depicted. The disaggregated BS200 architecture may include one or more Central Units (CUs) 210, which may communicate directly with the core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated BS units (such as a Near Real-Time (Near RT) Radio Access Network (RAN) Intelligent Controller (RIC) 225 via an E2 link, or a Non-Real-Time (Non RT) RIC 215 associated with a Service Management and Orchestration (SMO) framework 205, or both). The CU 210 may communicate with one or more Distributed Units (DUs) 230 via a respective midhaul link (such as an F1 interface). The DU 230 may communicate with one or more Radio Units (RUs) 240 via a respective fronthaul link. The RU 240 may communicate with a respective UE 104 via one or more Radio Frequency (RF) access links. In some specific implementations, the UE 104 may be served simultaneously by multiple RUs 240.
[0051] Each of the units (e.g., CU 210, DU 230, RU 240, and the near RT RIC 225, non-RT RIC 215, and SMO framework 205) may include one or more interfaces or be coupled to one or more interfaces that are configured to receive or transmit signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each unit in the units or the associated processor or controller that provides instructions to the communication interface of the unit may be configured to communicate with one or more of the other units via the transmission medium. For example, the units may include a wired interface that is configured to receive or transmit signals to one or more of the other units via a wired transmission medium. Additionally or alternatively, the unit may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as a radio frequency (RF) transceiver) that is configured to receive signals on a wireless transmission medium or transmit signals to one or more of the other units, or both.
[0052] In some aspects, the CU 210 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may utilize an interface that is configured to communicate signals with other control functions hosted by the CU 210. The CU 210 may be configured to handle user plane functionality (e.g., Central Unit - User Plane (CU-UP)), control plane functionality (e.g., Central Unit - Control Plane (CU-CP)), or a combination thereof. In some embodiments, the CU 210 may be logically partitioned into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units may communicate bidirectionally with the CU-CP units via an interface (such as the E1 interface). As needed, the CU 210 may be implemented to communicate with the DU 230 for network control and signaling.
[0053] The DU 230 may correspond to a logical unit that includes one or more BS functions for controlling the operation of one or more RUs 240. In some aspects, the DU 230 may host one or more of the radio link control (RLC) layer, the media access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation, etc.) at least partially according to a functional split (such as those defined by the 3rd Generation Partnership Project (3GPP)). In some aspects, the DU 230 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to signal communicate with other layers (and modules) hosted by the DU 230 or with control functions hosted by the CU 210.
[0054] Lower layer functions may be implemented by one or more RUs 240. In some deployments, the RUs 240 controlled by the DU 230 may correspond to logical nodes that host RF processing functions or low PHY layer functions (such as performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.) or both at least partially based on a functional split (such as a lower layer functional split). In such an architecture, the RUs 240 may be implemented to handle over-the-air (OTA) communication with one or more UEs 104. In some embodiments, the real-time and non-real-time aspects of the control plane and user plane communication with the RUs 240 may be controlled by the corresponding DU 230. In some scenarios, this configuration may enable the implementation of the DU 230 and the CU 210 in a cloud-based RAN architecture (such as a vRAN architecture).
[0055] The SMO framework 205 can be configured to support the RAN deployment and orchestration of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 205 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, and these dedicated physical resources can be managed via operation and maintenance interfaces (such as the O1 interface). For virtualized network elements, the SMO framework 205 can be configured to interact with a cloud computing platform (such as the Open Cloud (O-Cloud) 290) to perform network element lifecycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as the O2 interface). Such virtualized network elements can include, but are not limited to, the CU 210, DU 230, RU 240, and the Near RT RIC 225. In some specific implementations, the SMO framework 205 can communicate with the hardware aspects of the 4G RAN, such as the Open eNB (O-eNB) 211, via the O1 interface. Additionally, in some specific implementations, the SMO framework 205 can communicate directly with one or more RUs 240 via the O1 interface. The SMO framework 205 can also include a Non-RT RIC 215 configured to support the functions of the SMO framework 205.
[0056] The Non-RT RIC 215 can be configured to include logical functions that can enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and update, or policy-based guidance of applications / features in the Near RT RIC 225. The Non-RT RIC 215 can be coupled to or communicate with the Near RT RIC 225 (such as via the A1 interface). The Near RT RIC 225 can be configured to include logical functions that can enable near-real-time control and optimization of RAN elements and resources through interfaces (such as via the E2 interface) via data collection and actions, and this interface connects one or more CUs 210, one or more DUs 230, or both, and the O-eNB to the Near RT RIC 225.
[0057] In some specific implementations, in order to generate an AI / ML model to be deployed in the Near RT RIC 225, the Non-RT RIC 215 can receive parameters or external enrichment information from an external server. Such information can be utilized by the Near RT RIC 225 and can be received from non-network data sources or from network functions at the SMO framework 205 or the Non-RT RIC 215. In some examples, the Non-RT RIC 215 or the Near RT RIC 225 can be configured to tune RAN behavior or performance. For example, the Non-RT RIC 215 can monitor long-term trends and patterns of performance and employ an AI / ML model to perform corrective actions via the SMO framework 205 (such as via reconfiguration of the O1) or via creating RAN management policies (such as A1 policies).
[0058] Figure 3 depicts aspects of example BS102 and UE 104.
[0059] Generally, BS102 includes various processors (e.g., 320, 330, 338, and 340), antennas 334a - 334t (collectively 334), transceivers 332a - 332t (collectively 332) including modulators and demodulators, and other aspects for implementing wireless transmission of data (e.g., data source 312) and wireless reception of data (e.g., data sink 339). For example, BS102 can transmit and receive data between BS102 and UE 104. BS102 includes a controller / processor 340 that can be configured to implement various functions described herein related to wireless communication.
[0060] BS102 includes a controller / processor 340 that can be configured to implement various functions related to wireless communication. In the depicted example, the controller / processor 340 includes a TCI component 341, and this TCI component can represent Figure 1 the STC component 199. It is noted that although depicted as an aspect of the controller / processor 340, in other specific implementations, the TCI component 341 can additionally or alternatively be implemented in various other aspects of BS102.
[0061] Generally, UE 104 includes various processors (e.g., 358, 364, 366, and 380), antennas 352a - 352r (collectively 352), transceivers 354a - 354r (collectively 354) including modulators and demodulators, and other aspects for implementing wireless transmission of data (e.g., retrieved from data source 362) and wireless reception of data (e.g., provided to data sink 360). UE104 includes a controller / processor 380 that can be configured to implement various functions described herein related to wireless communication.
[0062] UE 104 includes a controller / processor 380 that can be configured to implement various functions related to wireless communication. In the depicted example, the controller / processor 380 includes a TCI component 381, and this TCI component can represent Figure 1 the STC component 198. It is noted that although depicted as an aspect of the controller / processor 380, in other specific implementations, the TCI component 381 can additionally or alternatively be implemented in various other aspects of UE 104.
[0063] Regarding an example downlink transmission, BS102 includes a transmission processor 320 that can receive data from a data source 312 and control information from a controller / processor 340. The control information can be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical HARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), and / or others. In some examples, the data can be for a physical downlink shared channel (PDSCH).
[0064] The transmission processor 320 can process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The transmission processor 320 can also generate reference symbols (such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH demodulation reference signal (DMRS), and a channel state information reference signal (CSI-RS)).
[0065] A transmit (TX) multiple-input multiple-output (MIMO) processor 330 can perform spatial processing (e.g., precoding) on the data symbols, control symbols, and / or reference symbols when applicable, and can provide the output symbol streams to modulators (MOD) in transceivers 332a - 332t. Each modulator in transceivers 332a - 332t can process the corresponding output symbol stream to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from the modulators in transceivers 332a - 332t can be transmitted via antennas 334a - 334t, respectively.
[0066] To receive a downlink transmission, UE 104 includes antennas 352a - 352r that can receive downlink signals from BS102 and can provide the received signals to demodulators (DEMOD) in transceivers 354a - 354r, respectively. Each demodulator in transceivers 354a - 354r can condition (e.g., filter, amplify, down-convert, and digitize) the corresponding received signal to obtain input samples. Each demodulator can further process the input samples to obtain the received symbols.
[0067] A MIMO detector 356 can obtain the received symbols from all the demodulators in transceivers 354a - 354r, perform MIMO detection on the received symbols when applicable, and provide the detected symbols. A receive processor 358 can process (e.g., demodulate, de-interleave, and decode) the detected symbols, provide the decoded data of UE 104 to a data sink 360, and provide the decoded control information to a controller / processor 380.
[0068] Regarding example uplink transmission, UE 104 further includes a transmit processor 364 that can receive and process data from a data source 362 (e.g., for PUSCH) and control information from a controller / processor 380 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 364 can also generate reference symbols for reference signals (e.g., for sounding reference signals (SRS)). Symbols from the transmit processor 364 can be pre-coded by a TX MIMO processor 366 when applicable, further processed by a modulator in transceivers 354a - 354r (e.g., for SC-FDM), and transmitted to BS102.
[0069] At BS102, the uplink signal from UE 104 can be received by antennas 334a - 334t, processed by a demodulator in transceivers 332a - 332t, detected by an MIMO detector 336 when applicable, and further processed by a receive processor 338 to obtain the decoded data and control information transmitted by UE 104. The receive processor 338 can provide the decoded data to a data sink 339 and the decoded control information to a controller / processor 340.
[0070] Memories 342 and 382 can store data and program codes for BS102 and UE 104 respectively.
[0071] A scheduler 344 can schedule UEs for data transmission on the downlink and / or uplink.
[0072] In various aspects, BS102 can be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, "transmit" can refer to various mechanisms for outputting data, such as outputting data from a data source 312, a scheduler 344, a memory 342, a transmit processor 320, a controller / processor 340, a TX MIMO processor 330, transceivers 332a - 332t, antennas 334a - 334t, and / or other aspects described herein. Similarly, "receive" can refer to various mechanisms for obtaining data, such as obtaining data from antennas 334a - 334t, transceivers 332a - 332t, an RX MIMO detector 336, a controller / processor 340, a receive processor 338, a scheduler 344, a memory 342, and / or other aspects described herein.
[0073] In various aspects, UE 104 may similarly be described as sending and receiving various types of data associated with the methods described herein. In these contexts, "sending" may refer to various mechanisms for outputting data, such as outputting data from data source 362, memory 382, transmit processor 364, controller / processor 380, TX MIMO processor 366, transceiver 354a - 354t, antenna 352a - 352t, and / or other aspects described herein. Similarly, "receiving" may refer to various mechanisms for obtaining data, such as obtaining data from antenna 352a - 352t, transceiver 354a - 354t, RX MIMO detector 356, controller / processor 380, receive processor 358, memory 382, and / or other aspects described herein.
[0074] In some aspects, a processor may be configured to perform various operations (such as those associated with the methods described herein) and send (output) data to or receive (obtain) data from another interface configured to send or receive data, respectively.
[0075] Figure 4A , Figure 4B , Figure 4C and Figure 4D depict aspects of data structures for a wireless communication network (such as Figure 1 the wireless communication network 100).
[0076] Specifically, Figure 4A is a diagram 400 that illustrates an example of a first subframe within a 5G (e.g., 5G NR) frame structure, Figure 4B is a diagram 430 that illustrates an example of a DL channel within a 5G subframe, Figure 4C is a diagram 450 that illustrates an example of a second subframe within a 5G frame structure, and Figure 4D is a diagram 480 that illustrates an example of a UL channel within a 5G subframe.
[0077] A wireless communication system may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on the uplink and downlink. Such a system may also support half - duplex operation using time - division duplexing (TDD). OFDM and single - carrier frequency - division multiplexing (SC - FDM) divide the system bandwidth (e.g., as depicted in Figure 4B and Figure 4D ) into multiple orthogonal sub - carriers. Each sub - carrier may be modulated with data. Modulation symbols may be transmitted in the frequency domain using OFDM and / or in the time domain using SC - FDM.
[0078] The wireless communication frame structure can be Frequency Division Duplexing (FDD), where for a specific set of subcarriers, the subframes within that set of subcarriers are dedicated to either DL or UL. The wireless communication frame structure can also be Time Division Duplexing (TDD), where for a specific set of subcarriers, the subframes within that set of subcarriers are dedicated to both DL and UL.
[0079] In Figure 4A and Figure 4C the wireless communication frame structure is TDD, where D is DL, U is UL, and X can be flexibly used between DL / UL. The UE can be configured with a slot format (dynamically configured via Downlink Control Information (DCI) or semi-statically / statically configured via Radio Resource Control (RRC) signaling) through the received Slot Format Indicator (SFI). In the depicted example, a 10 ms frame is divided into 10 equal-sized 1 ms subframes. Each subframe can include one or more slots. In some examples, each slot can include 7 or 14 symbols, depending on the slot format. The subframe can also include mini-slots, which typically have fewer symbols than an entire slot. Other wireless communication technologies may have different frame structures and / or different channels.
[0080] In some aspects, the number of slots within a subframe is based on the slot configuration and the numerology. For example, for slot configuration 0, different numerologies (μ) 0 to 5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different numerologies 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Thus, for slot configuration 0 and numerology μ, there are 14 symbols / slot and 2μ slots / subframe. The subcarrier spacing and symbol length / duration are functions of the numerology. The subcarrier spacing can be equal to 2 μ × 15 kHz, where μ is numerology 0 to 5. Thus, numerology μ = 0 has a subcarrier spacing of 15 kHz, and numerology μ = 5 has a subcarrier spacing of 480 kHz. The symbol length / duration is negatively correlated with the subcarrier spacing. Figure 4A 、 Figure 4B 、 Figure 4C and Figure 4D An example is provided with slot configuration 0 having 14 symbols per slot and numerology μ = 2 having 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.
[0081] As Figure 4A 、 Figure 4B 、 Figure 4C and Figure 4DAs depicted, a resource grid can be used to represent a frame structure. Each time slot includes a resource block (RB) (also referred to as a physical RB (PRB)) that extends, for example, over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0082] As Figure 4A illustrated, some of the REs carry reference (pilot) signals (RSs) for a UE (e.g., Figure 1 and Figure 3 UE 104). The RS can include a demodulation RS (DMRS) and / or a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS can also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and / or a phase tracking RS (PT-RS).
[0083] Figure 4B Illustrates an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE including, for example, nine RE groups (REGs), each REG including, for example, four consecutive REs in an OFDM symbol.
[0084] The primary synchronization signal (PSS) can be in symbol 2 of a specific subframe of a frame. The PSS is used by a UE (e.g., Figure 1 and Figure 3 104) to determine subframe / symbol timing and the physical layer identity.
[0085] The secondary synchronization signal (SSS) can be in symbol 4 of a specific subframe of a frame. The SSS is used by a UE to determine the physical layer cell identity group number and radio frame timing.
[0086] Based on the physical layer identity and the physical layer cell identity group number, a UE can determine the physical cell identifier (PCI). Based on the PCI, a UE can determine the location of the aforementioned DMRS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent via the PBCH (such as system information blocks (SIBs)) and / or paging messages.
[0087] As Figure 4CAs illustrated, some of the REs in the RE carry DMRS for channel estimation at the BS (indicated as R for one particular configuration, but other DMRS configurations are possible). The UE may transmit DMRS for the PUCCH and DMRS for the PUSCH. The PUSCH DMRS may be transmitted, for example, in the previous one or two symbols of the PUSCH. The PUCCH DMRS may be transmitted in different configurations depending on whether a short PUCCH or a long PUCCH is being transmitted and depending on the particular PUCCH format used. The UE 104 may transmit a sounding reference signal (SRS). The SRS may be transmitted, for example, in the last symbol of the subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the combs in the comb structure. The SRS may be used by the BS for channel quality estimation to enable frequency-dependent scheduling on the UL.
[0088] Figure 4D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at the position indicated in one configuration. The PUCCH carries uplink control information (UCI), such as a scheduling request, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.
[0089] Introduction to mmWave Wireless Communication
[0090] In wireless communication, the electromagnetic spectrum is typically subdivided into various categories, frequency bands, channels, or other characteristics. The subdivision is typically provided based on wavelength and frequency, where frequency may also be referred to as carrier, subcarrier, channel, tone, or subband.
[0091] The 5th generation (5G) network may utilize several frequency ranges, which in some cases are defined by standards such as the 3rd Generation Partnership Project (3GPP) standards. For example, although the 3GPP technical standard TS 38.101 currently defines frequency range 1 (FR1) as including 600 MHz - 6 GHz, specific uplink and downlink allocations may fall outside of this general range. Thus, FR1 is commonly referred to (interchangeably) as the "sub-6 GHz" band.
[0092] Similarly, although TS 38.101 currently defines Frequency Range 2 (FR2) as including 26 GHz - 41 GHz, again, specific uplink and downlink allocations may fall outside of this general range. FR2 is sometimes referred to (interchangeably) as the “millimeter wave” (“mmW” or “mmWave”) band, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified by the International Telecommunication Union (ITU) as the “millimeter wave” band, since the wavelengths at these frequencies are between 1 millimeter and 10 millimeters.
[0093] Compared to lower rate frequency communications, communications using mmWave / near mmWave radio frequency bands (e.g., 3 GHz - 300 GHz) may have higher path loss and shorter range. As described above with respect to Figure 1 a base station (BS) (e.g., 180) configured to communicate using mmWave / near mmWave radio frequency bands may utilize beamforming (e.g., 182) with a user equipment (UE) (e.g., 104) to improve path loss and range.
[0094] Example Transmission Configuration Indicator (TCI) State
[0095] In some wireless systems, a transmit configuration indicator (TCI) state is used to indicate the quasi - co - location (QCL) relationship between one or more downlink reference signals (DL RS) and DMRS antenna ports for the physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH). Two antenna ports are considered to be quasi - co - located (QCL) when the channel characteristics through which the symbols on one antenna port pass can be inferred from the symbols on another antenna port.
[0096] In the 5G New Radio (NR) standard, four types of QCL have been defined and designated as types A to D. The QCL types are defined as QCL-TypeA, which includes Doppler shift, Doppler spread, mean delay, and delay spread; QCL-TypeB, which includes Doppler shift and Doppler spread; QCL-TypeC, which includes Doppler shift and mean delay; and QCL-TypeD, which includes spatial receiver (Rx) parameters. When two DL RSs are included in a TCI state, the QCL types will always be different, whether the two DL RSs are the same DL RS or different DL RSs. In some cases, the DL RS can be a Synchronization Signal Block (SSB) that includes a Synchronization Signal SS (e.g., Primary Synchronization Signal (PSS) and / or Secondary Synchronization Signal (SSS)) and a Physical Broadcast Channel (PBCH), or a Channel State Information Reference Signal (CSI-RS). Additionally, for certain QCL types, two signal ports are considered to be QCL when the channels share the same attributes indicated by the QCL type.
[0097] When determining the TCI state for PDSCH DMRS, note that a User Equipment (UE) can be configured with a set of possible TCI states communicated to the UE in a Radio Resource Control (RRC) level message (e.g., a PDSCH-Config message). For example, the RRC level message can be configured with TCI states for associating one or more DL RSs with corresponding QCL types. Specifically, the UE will receive a Medium Access Control (MAC) Control Element (CE) command to downselect a subset of the TCI states configured in the RRC message. Additionally, in some cases, the UE can receive Downlink Control Information (DCI) to further select a specific single TCI state from the subset of TCI states.
[0098] Example Cross - Component Carrier (CC) Transmission Configuration Indicator (TCI) Activation / Indication
[0099] Wireless systems such as New Radio (NR) systems support carrier aggregation using multiple Component Carriers (CCs). In some cases, one or more CCs can be divided into Bandwidth Parts (BWPs), and one BWP can be active for communication using the CC. In one example, a communication link in a wireless system can support transmission using multiple CCs (e.g., up to 16 uplink CCs and up to 16 downlink CCs). In some cases, a Medium Access Control (MAC) Control Element (CE) can be used to configure two or more CCs with two or more sets of different Active Transmission Configuration Indicator (TCI) states.
[0100] In some cases, each CC is uniquely identified and configured for physical channel and reference signal transmission. For example, for each downlink and uplink CC, beam selection can be indicated to a user equipment (UE) via a MAC-CE. The configuration of each CC may result in an increase in signaling overhead in a radio system.
[0101] In some cases, when a UE is configured with multiple CCs, a relatively large number of MAC-CEs (e.g., up to 16 MAC-CEs, each for each of up to 16 CCs) can be used to select different TCI state identifiers (IDs) in each CC (e.g., in downlink NR-NR carrier aggregation). Using this number of MAC-CEs can result in an increase in signaling overhead between the UE and a network entity. To reduce the number of MAC-CEs for transmitting groups of active TCI states in each CC configured for communication between a network entity and a UE, a single MAC-CE command can be used to activate two or more groups of different active TCI states for multiple CCs / BWPs (e.g., for multiple CCs / BWPs) in which the TCI states are active. For example, a first group of activated TCI states can be selected to be associated with a first group of one or more CCs, and a second group of activated TCI states can be selected to be associated with a second group of one or more CCs.
[0102] In some cases, a single MAC-CE can be used to activate different groups of active TCI states for data communication (e.g., physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH)) in groups of different CCs within a preconfigured CC list. This is in contrast to using multiple MAC-CEs, in which case each MAC-CE is used to select groups of active TCI states in the active BWP of a corresponding single CC (e.g., in downlink NR-NR carrier aggregation), which can result in an increase in signaling overhead between the UE and the network entity.
[0103] For example, as Figure 5 illustrated, a network entity transmits a MAC-CE indicating TCI state activation to a first CC (CC0) in a preconfigured CC list, and the TCI state activation applies to all other CCs. That is, the MAC-CE TCI activation for the first CC applies to all other CCs in the preconfigured CC list including the first CC. In some cases, not only the MAC-CE TCI state activation but also the downlink control information (DCI) indication for unified TCI state activation applies to all other CCs in the preconfigured CC list.
[0104] Currently, the unified TCI state activation framework (e.g., activating different active TCI states for different CCs based on a single MAC-CE or DCI) applies to the single transmit receive point (TRP) mode scenario, where each CC within a preconfigured CC list is associated with a single TRP.
[0105] However, in some cases, when different CCs within a preconfigured CC list are associated with different TRP modes such as sTRP mode, multi-DCI (mDCI) mTRP mode, and / or single-DCI (sDCI) mTRP mode, the current unified TCI state activation architecture will not be applicable due to several issues. For example, since different MAC-CE formats are defined for sTRP CC, mTRP mDCI CC, and mTRP sDCI CC, the MAC-CE indicating the TCI state activation for a first CC (e.g., associated with sTRP) within a preconfigured CC list will not be directly applicable to a second CC (e.g., associated with mTRP) within the same preconfigured CC list. In another example, a conventional MAC-CE may not contain sufficient information to activate the TCI code points of mTRP.
[0106] Therefore, there is a need for an improved unified TCI state activation architecture that is applicable to the mTRP scenario where different CCs within a preconfigured CC list are associated with different TRP modes.
[0107] Aspects Related to Transmission Configuration Indicator (TCI) Activation / Indication of Component Carriers (CCs) Associated with Different Transmit - Receive Point (TRP) Modes Activation / Indication
[0108] Aspects of the present disclosure provide an apparatus, method, processing system, and computer-readable medium for managing the activation of transmit configuration indicator (TCI) states of different component carriers (CCs) associated with different transmit receive point (TRP) modes within a preconfigured CC list.
[0109] For example, the techniques proposed herein allow a single command (e.g., a media access control (MAC)-control element (CE) or downlink control information (DCI)) to activate the TCI states of multiple CCs associated with different TRP modes within a preconfigured CC list. For example, when a MAC-CE activates the TCI state of a first CC associated with a first TRP mode within a preconfigured CC list, based on the type of the command (i.e., MAC-CE or DCI) and / or the TRP mode associated with other CCs, the activated TCI state is applicable to the first CC and one or more other CCs within the preconfigured CC list.
[0110] The techniques proposed in this document can improve system efficiency by reducing signaling overhead and reducing power consumption (e.g., by using a single MAC-CE / DCI to activate the TCI states of multiple CCs). The techniques proposed in this document can be further understood with reference to Figures 6 to 12 below.
[0111] Figure 6 depicts a process flow of communication in a network between a UE (e.g., UE 104 in a wireless communication network 100 such as Figure 1 ) and a network entity (e.g., BS102 in a wireless communication network 100 such as Figure 1 ).
[0112] At 602, the network entity transmits to the UE a TCI state configuration indicating the TCI states of a set of CCs (e.g., associated with the same CC list). Each CC in the set is associated with one of multiple TRP modes. The multiple TRP modes can include a single TRP (sTRP) mode and a multi-TRP (mTRP) mode. The mTRP mode can correspond to a multi-downlink control information (mDCI) mTRP mode. The mTRP mode can also correspond to a single DCI (sDCI) mTRP mode.
[0113] In one aspect, at least one CC in the set is associated with the sTRP mode. For example, as Figure 7 illustrates, CC0 is associated with TRP0. In another aspect, at least one CC in the set is associated with the mDCI mTRP mode. For example, as Figure 8 illustrates, CC1 is associated with TRP0 and TRP1. CC1 receives DCI from both TRP0 and TRP1. In another aspect, at least one CC in the set is associated with the sDCI mTRP mode. For example, as Figure 11 illustrates, CC2 is associated with TRP0 and TRP1. CC2 receives DCI from TRP0.
[0114] Returning to reference Figure 6 , at 604, the UE configures a TCI state configuration indicating the TCI states of the set of CCs.
[0115] At 606, the network entity transmits to the UE an indication to activate one of the TCI states for a first CC in the set. The first CC can be a reference CC. In one example, the network entity transmits to the UE a medium access control (MAC)-control element (CE) carrying an indication to activate one of the TCI states for the first CC in the set. In another example, the network entity transmits to the UE a DCI carrying an indication to activate one of the TCI states for the first CC in the set.
[0116] At 608, the UE applies the activated TCI state to the first CC in the set and one or more of the remaining CCs in the set based on at least one of the following: the indicated type or the TRP pattern associated with the remaining CCs in the set. The remaining CCs in the set include CCs other than the first CC. For example, the UE may apply the activated TCI state to one or more of the remaining CCs in the set based on the indicated type. In another example, the UE may apply the activated TCI state to one or more of the remaining CCs in the set based on the TRP pattern associated with the remaining CCs in the set. In another example, the UE may apply the activated TCI state to one or more of the remaining CCs in the set based on the indicated type and the TRP pattern associated with the remaining CCs in the set.
[0117] In some aspects, there may be some restrictions on the CCs within the set and / or the first CC in the set. For example, all CCs in the set may be associated with the same TRP pattern among multiple TRP patterns. That is, only CCs with the same TRP pattern can be configured in the set. For example, when the set has a CC associated with the sTRP pattern (e.g., as Figure 7 illustrated), all other CCs in the set are also associated with the sTRP pattern.
[0118] In some aspects, different CCs in the set are associated with different TRP patterns among multiple TRP patterns. For example, when at least the first CC (e.g., indicated to the UE via MAC-CE) is associated with the mTRP pattern, different CCs associated with different TRP patterns are allowed in the set.
[0119] In some aspects, the first CC (e.g., indicated to the UE via MAC-CE) is associated with the sTRP pattern. In such cases, the UE applies the activated TCI state to the first CC and one or more of the remaining CCs in the set that are associated with the sTRP pattern. For example, the MAC-CE for the first CC associated with the sTRP pattern is only applied to the sTRP CCs in the set.
[0120] In some aspects, the MAC-CE includes one or more configurations for multiple TRP patterns, and each CC in the set is associated with the configuration of the corresponding TRP pattern among multiple TRP patterns. For example, a single MAC-CE may contain configurations for multiple TRP patterns, and each CC may follow the configuration of the corresponding TRP pattern.
[0121] In some aspects, a MAC-CE (e.g., indicating to a UE a first CC associated with an mDCI mTRP mode) can be associated with at least one control resource set (CORESET) pool identifier (ID). In such cases, the UE applies the activated TCI state to the first CC and one or more CCs associated with the sTRP mode among the remaining CCs in the group. For example, the mDCI mTRP mode MAC-CE associated with at least one CORESET pool ID applies to sTRP mode CCs (e.g., for mDCI mTRP to sTRP conversion rules).
[0122] In some aspects, at least one CORESET pool ID is predefined. For example, at least one CORESET pool ID can be predefined as the minimum ID.
[0123] In some aspects, the UE receives another signaling that configures the UE with at least one CORESET pool ID. For example, at least one CORESET pool ID can be configured by a network entity.
[0124] In some aspects, the UE receives an indication of a first TCI state among the TCI states activated for the first CC in the group. The first TCI state activated from the first CORESET pool ID associated with the first CC corresponds to the first TCI state among the first TCI code points associated with one or more CCs associated with the sTRP mode among the remaining CCs in the group. For example, the i-th TCI activated from CORESET pool #m in the mDCImTRP CC corresponds to the i-th TCI among the m-th TCI code points in the sDCI mTRP (i.e., one-to-one mapping).
[0125] In some aspects, the list of TCI code points of the CCs associated with the sDCImTRP mode in the group corresponds to the permutation of all the activated TCI states from all the CORESET pool IDs of the CCs associated with the mDCI mTRP mode in the group. For example, as Figure 9 and Figure 10 illustrated, the list of sDCI mTRP TCI code points corresponds to the permutation of all the activated TCIs from all the CORESET pools in the mDCI mTRP (i.e., one-to-N mapping).
[0126] In some aspects, a MAC-CE (e.g., indicating to a UE a first CC associated with an sDCI mTRP mode) is associated with at least one sequence ID. In such cases, the UE applies the activated TCI state to the first CC and one or more CCs associated with the sTRP mode among the remaining CCs in the group. For example, in the case of the sTRP mode, the TCI code point may contain multiple TCIs, and the TCIs of the TCI code point may be labeled based on their order within the TCI code point (e.g., the first TCI of the third TCI code point).
[0127] In some aspects, one or more activated TCI states associated with at least one sequence ID of the first CC apply to one or more CCs associated with the sTRP mode among the remaining CCs in the group. For example, only the activated TCIs associated with a predefined sequence ID apply to sTRP mode CCs (e.g., for sDCI mTRP mode to sTRP mode transition rules).
[0128] In some aspects, at least one sequence ID is predefined as a first TCI state. In some aspects, the UE receives another signaling that configures the UE with the at least one sequence ID. For example, the at least one sequence ID may be configured by a network entity.
[0129] In some aspects, the UE receives an indication of the first TCI state among the TCI states activated for the first CC. The first TCI state in the first TCI code point associated with the first CC corresponds to the first TCI state activated from a predefined CORESET pool ID associated with one or more CCs associated with the mDCI mTRP mode among the remaining CCs in the group. For example, the i-th TCI in the m-th TCI code point in the sDCI mTRP CC corresponds to the i-th TCI activated from CORESET pool #m in the mDCI mTRP CC.
[0130] In some aspects, when the DCI carries the indication, the sTRP CC and the sDCI mTRP CC share the same DCI format.
[0131] In some aspects, the first CC is associated with the sTRP mode and / or the sDCI mTRP mode. In such cases, the UE applies the activated TCI state to the first CC and one or more CCs associated with the sTRP mode and / or the sDCI mTRP among the remaining CCs in the group. For example, the TCI indication of the sTRP CC or the sDCI mTRP CC applies to the sTRP and sDCI mTRP CCs in the group.
[0132] In some aspects, the first CC is associated with the mDCI mTRP mode. In such cases, the UE applies the activated TCI state to the first CC and one or more CCs associated with the mDCI mTRP mode among the remaining CCs in the group. For example, the TCI indication of the mDCI mTRP CC applies to the mDCI mTRP (and sTRP) CCs in the group.
[0133] In some aspects, the UE receives an indication to activate a first TCI code point for a first CC associated with at least one of: the sTRP mode or the sDCI mTRP mode. In such cases, the UE selects and activates the first TCI code point for all CORESET pool IDs of one or more CCs associated with the mDCI mTRP mode among the remaining CCs in the group. For example, when the DCI from the sTRP / sDCI mTRP indicates the i-th TCI code point, then in the mDCI mTRP CC, the i-th TCI code point can be selected for all CORESET pool IDs (e.g., for the sTRP / sDCI mTRP to mDCI mTRP conversion rule).
[0134] In some aspects, the DCI is associated with a first CORESET pool identification ID, and the first CORESET pool ID is less than other CORESET pool IDs. In such cases, the UE receives a DCI carrying an indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode. The UE then applies the activated TCI state to the first CC and one or more CCs associated with the sTRP mode among the remaining CCs in the group. For example, the DCI from a predefined CORESET pool applies to the sTRP CCs in the group (e.g., for the mDCI mTRP to sTRP conversion rule). In another example, the DCI associated with CORESET pool #0 (e.g., the smallest CORESET pool ID) applies to the sTRP CCs in the group. The DCI with CORESET pool #1 applies to the mDCI mTRP CCs in the group but not to the sTRP CCs in the group.
[0135] In some aspects, the DCI is associated with at least one CORESET pool ID. In such cases, when the UE receives a DCI carrying an indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode, the UE then applies the activated TCI state to the first CC and one or more CCs associated with the sDCI mTRP mode among the remaining CCs in the group. For example, the DCI from a predefined CORESET pool applies to the sDCI mTRP CCs in the group (e.g., for the mDCI mTRP to sDCI mTRP conversion rule).
[0136] In some aspects, the DCI is associated with at least one CORESET pool ID. In such cases, the UE receives DCI carrying an indication of the TCI code point for the first CC associated with the mDCI mTRP mode. The TCI code point for the first CC corresponds to all TCI code points for each CORESET pool ID of one or more CCs associated with the mDCI mTRP mode among the remaining CCs in the set. For example, the indicated TCI code points in the sDCImTRP CC include all the indicated TCIs from each CORESET pool in the mDCImTRP CCs in the set (e.g., for the mDCI mTRP to sDCI mTRP conversion rule).
[0137] Figure 12 An example method 1200 for wireless communication is depicted. Method 1200 may be performed, for example, by a UE (e.g., UE 104 in a wireless communication network 100 such as Figure 1 . Method 1200 is implemented as a software component that executes and runs on one or more processors (e.g., Figure 3 's controller / processor 380). Additionally, the transmission and reception of signals by the UE in method 1200 may be implemented, for example, by one or more antennas (e.g., Figure 3 's antenna 352). In some aspects, the signal transmission and / or reception by the UE is implemented by obtaining and / or outputting signals via a bus interface of one or more processors (e.g., controller / processor 380).
[0138] Method 1200 begins at 1210 by receiving first signaling that configures the UE with TCI states for a set of CCs, where each CC in the set is associated with one of a plurality of TRP modes. For example, the UE may use Figure 1 or Figure 3 shown in UE104 and / or Figure 13 shown in the apparatus and / or the antenna and / or receiver / transceiver components of the apparatus shown in
[0139] At 1220, the UE receives an indication to activate one of the TCI states for the first CC in the set. For example, the UE may use Figure 1 or Figure 3 shown in UE 104 and / or Figure 13 shown in the apparatus and / or the antenna and / or receiver / transceiver components of the apparatus shown in
[0140] At 1230, the UE applies the activated TCI state to the first CC in the set and one or more of the remaining CCs in the set based on at least one of the following: the indicated type or the TRP pattern associated with the remaining CCs in the set. The remaining CCs in the set include CCs other than the first CC. For example, the UE may use Figure 1 or Figure 3 the processor, antenna, and / or transceiver components of the UE 104 shown in Figure 13 and / or apply the activated TCI state to the first CC and one or more of the remaining CCs in the set using the device shown in
[0141] Note that Figure 12 is only an example of a method, and other methods including fewer, additional, or alternative steps may be consistent with the present disclosure.
[0142] Example Communication Device
[0143] Figure 13 Aspects of an example communication device 1300 are depicted. In some aspects, the communication device 1300 is a user equipment (UE), such as the UE 104 described above with respect to Figure 1 and Figure 3 In some aspects, the communication device 1300 is a network entity, such as the BS102 of Figure 1 and Figure 3 or the split BS discussed with respect to Figure 2 The communication device 1300 includes a processing system 1302 coupled to a transceiver 1308 (e.g., a transmitter and / or a receiver). In some aspects (e.g., when the communication device 1300 is a network entity), the processing system 1302 may be coupled to a network interface configured to obtain and transmit signals for the communication device 1300 via a communication link such as a fronthaul link, a midhaul link, and / or a backhaul link as described herein with respect to
[0144] Figure 2 The transceiver 1308 is configured to transmit and receive signals for the communication device 1300 via an antenna 1310, such as the various signals described herein. The processing system 1302 may be configured to perform the processing functions of the communication device 1300, including processing signals received by and / or to be transmitted by the communication device 1300.
[0145] Figure 3 The processing system 1302 includes one or more processors 1320. In various aspects, the one or more processors 1320 may represent one or more of the receive processor 358, the transmit processor 364, the TX MIMO processor 366, and / or the controller / processor 380, as with respect to Figure 3As described. In various aspects, one or more processors 1320 may represent one or more of a receiving processor 338, a transmitting processor 320, a TX MIMO processor 330, and / or a controller / processor 340, as described with respect to Figure 3 As described. One or more processors 1320 are coupled to a computer-readable medium / memory 1330 via a bus 1306. In some aspects, the computer-readable medium / memory 1330 is configured to store instructions (e.g., computer-executable code) that, when executed by one or more processors 1320, cause the one or more processors 1320 to perform: with respect to Figure 12 The method 1200 described or any aspect related thereto. Note that references to processors that perform the functions of the communication device 1300 may include one or more processors 1320 that perform the functions of the communication device 1300.
[0146] In the depicted example, the computer-readable medium / memory 1330 stores code (e.g., executable instructions), such as code 1331 for reception, code 1333 for reception, and code 1335 for application. Processing of the code 1331 for reception, the code 1333 for reception, and the code 1335 for application may cause the communication device 1300 to perform: with respect to Figure 12 The method 1200 described or any aspect related thereto.
[0147] One or more processors 1320 include circuitry configured to implement (e.g., execute) code stored in the computer-readable medium / memory 1330, including circuitry such as circuitry 1321 for reception, circuitry 1323 for reception, and circuitry 1325 for application. Processing using the circuitry 1321 for reception, the circuitry 1323 for reception, and the circuitry 1325 for application may cause the communication device 1300 to perform: with respect to Figure 12 The method 1200 described or any aspect related thereto.
[0148] Various components of the communication device 1300 may provide components for performing the method 1200 described or any aspect related thereto. For example, components for transmitting, conveying, or outputting for transmission may include Figure 12 The transceiver 354 and / or antenna 352 of the UE 104 illustrated in Figure 3 , the transceiver 332 and / or antenna 334 of the BS102 illustrated in Figure 3 , and / or the transceiver 1308 and antenna 1310 of the communication device 1300 in Figure 13 . Components for receiving or obtaining may include Figure 3 The transceiver 354 and / or antenna 352 of the UE 104 illustrated inFigure 3 the transceiver 332 and / or the antenna 334 of BS102 as illustrated in Figure 13 and the transceiver 1308 and the antenna 1310 of the communication device 1300 in
[0149] Example Clauses
[0150] Specific implementation examples are described in the following numbered clauses:
[0151] Clause 1: A method for wireless communication by a user equipment (UE), the method comprising: receiving first signaling for configuring the UE using a transmit configuration indicator (TCI) state of a set of component carriers (CCs), wherein each CC in the set is associated with one of a plurality of transmit receive point (TRP) modes; receiving an indication to activate one of the TCI states for a first CC in the set; and applying the activated TCI state to the first CC and one or more of the remaining CCs in the set based on at least one of: the type of the indication or the TRP mode associated with the remaining CCs in the set, wherein the remaining CCs in the set include CCs other than the first CC.
[0152] Clause 2: The method, alone or in combination with the first clause, wherein: the indication is included in a medium access control (MAC)-control element (CE); the plurality of TRP modes include a single TRP (sTRP) mode and a multi-TRP (mTRP) mode; and the mTRP mode corresponds to a multi-downlink control information (mDCI) mTRP mode or a single DCI (sDCI) mTRP mode.
[0153] Clause 3: The method, alone or in combination with the second clause, wherein all CCs in the set are associated with the same TRP mode among the plurality of TRP modes.
[0154] Clause 4: The method, alone or in combination with the second clause, wherein: different CCs in the set are associated with different TRP modes among the plurality of TRP modes; and the first CC is associated with the mTRP mode.
[0155] Clause 5: The method, alone or in combination with the second clause, wherein: the first CC is associated with the sTRP mode; and the application further includes applying the activated TCI state to the one or more CCs in the remaining CCs in the set that are associated with the sTRP mode.
[0156] Clause 6: A method, either alone or in combination with a second clause, wherein: the MAC-CE includes one or more configurations for the plurality of TRP modes; and each CC in the set is associated with a configuration of a corresponding TRP mode among the plurality of TRP modes.
[0157] Clause 7: A method, either alone or in combination with a second clause, wherein: the first CC is associated with the mDCI mTRP mode;
[0158] Clause 8: A method, either alone or in combination with the seventh clause, wherein the MAC-CE is associated with at least one control resource set (CORESET) pool identifier (ID).
[0159] Clause 9: A method, either alone or in combination with the eighth clause, wherein the application further includes applying the activated TCI state to one or more CCs in the remaining CCs in the set that are associated with the sTRP mode when the MAC CE is associated with the at least one CORESET pool ID.
[0160] Clause 10: A method, either alone or in combination with the eighth clause, wherein at least one of the following occurs: the at least one CORESET pool ID is predefined as the minimum ID; or a second signaling for configuring the UE using the at least one CORESET pool ID is received.
[0161] Clause 11: A method, either alone or in combination with the eighth clause, wherein: the receiving further includes receiving an indication of activating a first TCI state among the TCI states for the first CC in the set; and the first TCI state activated from the first CORESET pool ID associated with the first CC corresponds to the first TCI state among the first TCI code points associated with one or more CCs in the remaining CCs in the set that are associated with the sTRP mode.
[0162] Clause 12: A method, either alone or in combination with the eighth clause, wherein the list of TCI code points of the CCs in the set that are associated with the sDCI mTRP mode corresponds to a permutation of all the activated TCI states of all the CORESET pool IDs from the CCs in the set that are associated with the mDCI mTRP mode.
[0163] Clause 13: A method, either alone or in combination with a second clause, wherein: the first CC is associated with the sDCI mTRP mode.
[0164] Clause 14: A method, either alone or in combination with the thirteenth clause, wherein the MAC-CE is associated with at least one predefined order identifier (ID).
[0165] Clause 15: A method, either alone or in combination with Clause 14, wherein the application further includes applying the activated TCI state to one or more CCs associated with the sTRP mode among the remaining CCs in the group when the MAC CE is associated with the at least one sequence ID.
[0166] Clause 16: A method, either alone or in combination with Clause 14, wherein all activated TCI states associated with the predefined sequence ID of the first CC are applicable to one or more CCs associated with the sTRP mode among the remaining CCs in the group.
[0167] Clause 17: A method, either alone or in combination with Clause 14, wherein at least one of the following occurs: the at least one sequence ID is predefined as a first TCI state; or a third signaling for configuring the UE using the at least one sequence ID is received.
[0168] Clause 18: A method, either alone or in combination with Clause 14, wherein: the receiving further includes receiving an indication of activating a first TCI state among the TCI states for the first CC; and the first TCI state in the first TCI code point associated with the first CC corresponds to a first TCI state activated from a predefined CORESET pool ID associated with one or more CCs associated with the mDCI mTRP mode among the remaining CCs in the group.
[0169] Clause 19: A method, either alone or in combination with Clause 1, wherein: the indication is included in downlink control information (DCI); the multiple TRP modes include a single TRP (sTRP) mode and a multiple TRP (mTRP) mode; and the mTRP mode corresponds to a multiple downlink control information (mDCI) mTRP mode or a single DCI (sDCI) mTRP mode.
[0170] Clause 20: A method, either alone or in combination with Clause 19, wherein: the first CC is associated with at least one of the following: the sTRP mode or the sDCI mTRP mode; and the application further includes applying the activated TCI state to one or more CCs associated with at least one of the following among the remaining CCs in the group: the sTRP mode or the sDCI mTRP mode.
[0171] Clause 21: A method, either alone or in combination with Clause 19, wherein: the first CC is associated with the mDCI mTRP mode; and the application further includes applying the activated TCI state to one or more CCs among the remaining CCs in the group that are associated with the mDCI mTRP mode.
[0172] Clause 22: A method, either alone or in combination with Clause 19, wherein: the receiving further includes receiving an indication to activate a first TCI code point for the first CC associated with at least one of the following: the sTRP mode or the sDCImTRP mode; and the application further includes selecting and activating a first TCI code point for all control resource set (CORESET) pool identities (IDs) of one or more CCs among the remaining CCs in the group that are associated with the mDCI mTRP mode.
[0173] Clause 23: A method, either alone or in combination with Clause 19, wherein: the DCI is associated with a first control resource set (CORESET) pool identity (ID), where the first CORESET pool ID is less than other CORESET pool IDs; the receiving further includes receiving the DCI carrying the indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode; and the application further includes applying the activated TCI state to one or more CCs among the remaining CCs in the group that are associated with the sTRP mode.
[0174] Clause 24: A method, either alone or in combination with Clause 19, wherein: the DCI is associated with at least one control resource set (CORESET) pool identity (ID); the receiving further includes receiving the DCI carrying the indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode; and the application further includes applying the activated TCI state to one or more CCs among the remaining CCs in the group that are associated with the sDCI mTRP mode.
[0175] Clause 25: A method, either alone or in combination with Clause 19, wherein: the receiving further includes receiving the DCI carrying the indication of the TCI code point for the first CC associated with the mDCI mTRP mode; and the TCI code point of the first CC corresponds to all TCI code points of each CORESET pool identity (ID) of one or more CCs among the remaining CCs in the group that are associated with the mDCI mTRP mode.
[0176] Clause 26: An apparatus, the apparatus comprising: a memory including executable instructions; and a processor configured to execute the executable instructions and cause the apparatus to perform the method according to any one of Clauses 1 to 26.
[0177] Clause 27: An apparatus, the apparatus comprising components for performing the method according to any one of Clauses 1 to 26.
[0178] Clause 28: A non-transitory computer-readable medium including executable instructions that, when executed by a processor of an apparatus, cause the apparatus to perform the method according to any one of Clauses 1 to 26.
[0179] Clause 29: A computer program product embodied on a computer-readable storage medium, the computer program product including code for performing the method according to any one of Clauses 1 to 26.
[0180] Additional Notes
[0181] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein do not limit the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, the functions and arrangements of the elements discussed may be changed without departing from the scope of the disclosure. Various procedures or components may be omitted, replaced, or added as appropriate for each example. For example, the methods described may be performed in a different order than described, and various actions may be added, omitted, or combined. Additionally, the features described for some examples may be combined in some other examples. For example, any number of the aspects set forth herein may be used to implement an apparatus or practice a method. Further, the scope of the disclosure is intended to cover such apparatus or methods practiced using other structures, functionality, or a combination of structure and functionality that supplement or replace the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.
[0182] The various illustrative logical blocks, modules, and circuits described in connection with the present disclosure may be implemented or performed using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, a system on a chip (SoC), or any other such configuration.
[0183] As used herein, the phrase referring to a list of items “at least one of” means any combination of those items (including a single member). By way of example, “at least one of a, b, or c” is intended to cover: a, b, c, a - b, a - c, b - c, and a - b - c, as well as any combination having multiple of the same element (e.g., a - a, a - a - a, a - a - b, a - a - c, a - b - b, a - c - c, b - b, b - b - b, b - b - c, c - c, and c - c - c, or any other ordering of a, b, and c).
[0184] As used herein, the term “determine” encompasses a variety of actions. For example, “determine” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, database, or another data structure), ascertaining, and the like. Additionally, “determine” may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), etc. Additionally, “determine” may include parsing, selecting, picking, establishing, and the like.
[0185] The methods disclosed herein include one or more actions for implementing the methods. The method actions may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of the actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. Additionally, the various operations of the methods described above may be performed by any suitable component capable of performing the corresponding functions. The component may include various hardware and / or software components and / or modules, including but not limited to circuitry, an application specific integrated circuit (ASIC), or a processor.
[0186] The following claims are not intended to be limited to the aspects shown herein but are to be accorded the full scope consistent with the claim language. In the claims, unless otherwise specified, the recitation of an element in the singular is not intended to mean "one and only one" but "one or more." Unless otherwise specified, the term "some" means one or more. Any claim element is not construed under the provisions of 35 U.S.C. § 112(f) unless the element is expressly recited using the phrase "means for." All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are known or later will be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public, whether or not such disclosure is expressly recited in the claims.
Claims
1. A user equipment (UE) configured for wireless communication, the user equipment (UE) comprising: A memory, the memory including computer-executable instructions; And a processor, the processor being configured to execute the computer-executable instructions and cause the UE to: Receive first signaling that configures the UE using a transmission configuration indicator (TCI) state of a set of component carriers (CCs), wherein each CC in the set is associated with one of a plurality of transmit receive point (TRP) modes; Receive an indication to activate one of the TCI states for a first CC in the set; And Apply the activated TCI state to the first CC and one or more of the remaining CCs in the set based on at least one of: the type of the indication or the TRP mode associated with the remaining CCs in the set, wherein the remaining CCs in the set include CCs other than the first CC.
2. The UE according to claim 1, wherein: The indication is included in a medium access control (MAC)-control element (CE); The plurality of TRP modes include a single TRP (sTRP) mode and a multi-TRP (mTRP) mode; and The mTRP mode corresponds to a multi-downlink control information (mDCI) mTRP mode or a single DCI (sDCI) mTRP mode.
3. The UE according to claim 2, wherein all CCs in the set are associated with the same TRP mode among the plurality of TRP modes.
4. The UE according to claim 2, wherein: Different CCs in the set are associated with different TRP modes among the plurality of TRP modes; and The first CC is associated with the mTRP mode.
5. The UE according to claim 2, wherein: The first CC is associated with the sTRP mode; and The application further includes applying the activated TCI state to the one or more CCs in the remaining CCs in the set that are associated with the sTRP mode.
6. The UE according to claim 2, wherein: The MAC-CE includes one or more configurations for the plurality of TRP modes; and Each CC in the set is associated with a configuration of the corresponding TRP mode among the plurality of TRP modes.
7. The UE according to claim 2, wherein the first CC is associated with the mDCI mTRP mode.
8. The UE according to claim 7, wherein the MAC-CE is associated with at least one control resource set (CORESET) pool identifier (ID).
9. The UE according to claim 8, wherein the application further includes applying the activated TCI state to the one or more CCs in the remaining CCs in the set that are associated with the sTRP mode when the MAC CE is associated with the at least one CORESET pool ID.
10. The UE according to claim 8, wherein at least one of the following occurs: The at least one CORESET pool ID is predefined as the minimum ID; or Receive a second signaling for configuring the UE by using the at least one CORESET pool ID.
11. The UE according to claim 8, wherein: The receiving further includes receiving an indication of activating a first TCI state in the TCI states for the first CC in the group; and The first TCI state activated from the first CORESET pool ID associated with the first CC corresponds to the first TCI state among the first TCI code points associated with one or more CCs associated with the sTRP mode among the remaining CCs in the group.
12. The UE according to claim 8, wherein a list of TCI code points of CCs associated with the sDCI mTRP mode in the group corresponds to a permutation of all activated TCI states of all CORESET pool IDs from CCs associated with the mDCI mTRP mode in the group.
13. The UE according to claim 2, wherein the first CC is associated with the sDCI mTRP mode.
14. The UE according to claim 13, wherein the MAC-CE is associated with at least one predefined sequence identifier (ID).
15. The UE according to claim 14, wherein the applying further includes applying the activated TCI state to one or more CCs associated with the sTRP mode among the remaining CCs in the group when the MAC CE is associated with the at least one sequence ID.
16. The UE according to claim 14, wherein all activated TCI states associated with the predefined sequence ID of the first CC are applicable to one or more CCs associated with the sTRP mode among the remaining CCs in the group.
17. The UE according to claim 14, wherein at least one of the following occurs: The at least one sequence ID is predefined as a first TCI state; or Receive a third signaling for configuring the UE by using the at least one sequence ID.
18. The UE according to claim 14, wherein: The receiving further includes receiving an indication of activating a first TCI state in the TCI states for the first CC; and The first TCI state among the first TCI code points associated with the first CC corresponds to the first TCI state activated from a predefined CORESET pool ID associated with one or more CCs associated with the mDCImTRP mode among the remaining CCs in the group.
19. The UE according to claim 1, wherein: The indication is included in the downlink control information (DCI); The plurality of TRP modes include a single TRP (sTRP) mode and a multi-TRP (mTRP) mode; and The mTRP mode corresponds to a multi-downlink control information (mDCI) mTRP mode or a single DCI (sDCI) mTRP mode.
20. The UE according to claim 19, wherein: The first CC is associated with at least one of the following: the sTRP mode or the sDCI mTRP mode; and The application further includes applying the activated TCI state to one or more CCs in the remaining CCs of the set that are associated with at least one of the following: the sTRP mode or the sDCI mTRP mode.
21. The UE according to claim 19, wherein: The first CC is associated with the mDCI mTRP mode; and The application further includes applying the activated TCI state to one or more CCs in the remaining CCs of the set that are associated with the mDCI mTRP mode.
22. The UE according to claim 19, wherein: The receiving further includes receiving an indication to activate a first TCI code point for the first CC associated with at least one of the following: the sTRP mode or the sDCI mTRP mode; and The application further includes selecting and activating a first TCI code point for all control resource set (CORESET) pool identities (IDs) of one or more CCs in the remaining CCs of the set that are associated with the mDCI mTRP mode.
23. The UE according to claim 19, wherein: The DCI is associated with a first control resource set (CORESET) pool identity (ID), where the first CORESET pool ID is less than other CORESET pool IDs; The receiving further includes receiving the DCI carrying the indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode; And The application further includes applying the activated TCI state to one or more CCs in the remaining CCs of the set that are associated with the sTRP mode.
24. The UE according to claim 19, wherein: The DCI is associated with at least one control resource set (CORESET) pool identity (ID); The receiving further includes receiving the DCI carrying the indication to activate one of the TCI states for the first CC associated with the mDCI mTRP mode; and The application further includes applying the activated TCI state to one or more CCs in the remaining CCs of the set that are associated with the sDCI mTRP mode.
25. The UE according to claim 19, wherein: The receiving further includes receiving the DCI carrying the indication of the TCI code point for the first CC associated with the mDCI mTRP mode; And The TCI code point of the first CC corresponds to all TCI code points of each CORESET pool identity (ID) of one or more CCs in the remaining CCs of the set that are associated with the mDCI mTRP mode.
26. A method for wireless communication by a user equipment (UE), the method comprising: Receiving first signaling for configuring the UE by using transmission configuration indicator (TCI) states of a set of component carriers (CCs), where each CC in the set is associated with one of a plurality of transmit receive point (TRP) patterns; Receiving an indication for activating one of the TCI states for a first CC in the set; And Applying the activated TCI state to the first CC and one or more CCs among the remaining CCs in the set based on at least one of: the type of the indication or the TRP pattern associated with the remaining CCs in the set, where the remaining CCs in the set include CCs other than the first CC.
27. The method according to claim 26, wherein: The indication is included in a medium access control (MAC)-control element (CE); The plurality of TRP patterns include a single TRP (sTRP) pattern and a multi-TRP (mTRP) pattern; and The mTRP pattern corresponds to a multi-downlink control information (mDCI) mTRP pattern or a single DCI (sDCI) mTRP pattern.
28. The method according to claim 27, wherein all CCs in the set are associated with the same TRP pattern among the plurality of TRP patterns.
29. The method according to claim 27, wherein: Different CCs in the set are associated with different TRP patterns among the plurality of TRP patterns; and The first CC is associated with the mTRP pattern.
30. The method according to claim 27, wherein: The first CC is associated with the sTRP pattern; and The applying further includes applying the activated TCI state to the one or more CCs associated with the sTRP pattern in a first group of CCs in the set.