Signaling for multiple transmit receive point activation and deactivation

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive, from a first serving cell via layer 3 control signaling, one or more parameters indicating a configuration of a plurality of transmit receive points (TRPs) and enabling activation or deactivation of a TRP of the plurality of TRPs. The UE may receive explicit multi-TRP information from the first serving cell via Layer 2 control signaling, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell, where the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP is to be activated as a primary TRP. The UE may communicate with the primary cell and the primary TRP. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. patent application No. 17 / 819,579, filed on August 12, 2022, entitled "SIGNALING FOR MULTIPLETRANSMISSION RECEPTION POINT ACTIVATION AND DEACTIVATION" and assigned to the assignee of this application.

[0003] The disclosure of the prior application is considered to be part of the present patent application and is incorporated into the present patent application by reference. Technical Field

[0004] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for signaling of multiple transmission reception point activation and deactivation. Background Art

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0006] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0007] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink to better integrate with other open standards; and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0008] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include: receiving from a first serving cell via layer 3 control signaling a configuration indicating multiple transmit receive points (TRPs) and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The method may include: receiving from the first serving cell via layer 2 control signaling explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second serving cell will be activated as a primary cell and the TRP associated with the second serving cell will be activated as a primary TRP. The method may include: communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

[0009] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include: sending to a UE via layer 3 control signaling a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The method may include: sending to the UE via layer 2 control signaling explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell is to be activated as a primary cell and the TRP associated with the second service cell is to be activated as a primary TRP.

[0010] Some aspects described herein relate to an apparatus for wireless communication performed by a UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive, from a first serving cell via layer 3 control signaling, a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The one or more processors may be configured to receive explicit multi-TRP information from the first serving cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second serving cell will be activated as a primary cell and the TRP associated with the second serving cell will be activated as a primary TRP. The one or more processors may be configured to communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

[0011] Some aspects described herein relate to an apparatus for wireless communication performed by a network node. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs to a UE via layer 3 control signaling. The one or more processors may be configured to send explicit multi-TRP information to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive from a first service cell via layer 3 control signaling an indication of the configuration of multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive explicit multi-TRP information from the first service cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP. The instruction set, when executed by one or more processors of the UE, may cause the UE to communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs to a UE via layer 3 control signaling. The instruction set, when executed by one or more processors of the network node, may cause the network node to send explicit multi-TRP information to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for receiving, via layer 3 control signaling, from a first service cell indicating a configuration of multiple TRPs and one or more parameters that enable activation or deactivation of a TRP in the multiple TRPs. The apparatus may include a component for receiving, via layer 2 control signaling, explicit multi-TRP information from the first service cell, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP. The apparatus may include a component for communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for sending, via layer 3 control signaling, to a UE a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The apparatus may include a component for sending, via layer 2 control signaling, explicit multi-TRP information to the UE, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell is to be activated as a primary cell and the TRP associated with the second service cell is to be activated as a primary TRP.

[0016] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to and as illustrated in the accompanying drawings.

[0017] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0018] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description briefly summarized above may be obtained by reference to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0020] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0021] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0022] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0023] Figure 4 is a diagram illustrating an example of a user plane protocol stack and a control plane protocol stack of a network node and a core network for communicating with a UE according to the present disclosure.

[0024] Figure 5 An example logical architecture of a distributed radio access network according to the present disclosure is illustrated.

[0025] Figure 6is a diagram illustrating an example of multiple transmit-receive point (TRP) communications according to the present disclosure.

[0026] Figure 7 is a diagram illustrating an example of a transmission configuration indicator (TCI) state switching according to the present disclosure.

[0027] FIG. 8A to FIG. 8B is a diagram illustrating an example of medium access control communication for inter-frequency handover according to the present disclosure.

[0028] Fig. 9 is a diagram illustrating an example of signaling for multi-TRP activation and deactivation according to the present disclosure.

[0029] FIG. 10A to FIG. 10B is a diagram illustrating an example of multi-TRP information for TRP activation and deactivation according to the present disclosure.

[0030] FIG. 11A to FIG. 11B is a diagram illustrating an example of multi-TRP information for TRP activation and deactivation according to the present disclosure.

[0031] Fig.12 is a diagram illustrating an example of multi-TRP information for TRP activation and deactivation according to the present disclosure.

[0032] Fig.13 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0033] Fig.14 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.

[0034] Fig.15 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0035] Fig.16 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0036] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functionality, or structure and functionality in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present invention.

[0037] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0038] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).

[0039] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0040] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with the core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul, midhaul, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0041] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1 In the example shown in , network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0042] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with the network node 110). In some aspects, the term "base station" or "network node" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not the other. In this way, a single device may include more than one base station.

[0043] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in , a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0044] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0045] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless or wired backhaul communication link. In some aspects, the network controller 130 may be, or may include, a CU or a core network device.

[0046] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.

[0047] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0048] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0049] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0050] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0051] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0052] Considering the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0053] In some aspects, the UE 120 may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may perform the following operations: receiving from a first serving cell via layer 3 control signaling a configuration indicating a plurality of TRPs and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs; receiving from the first serving cell via layer 2 control signaling explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the plurality of TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP; and communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0054] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may perform the following operations: sending to the UE via layer 3 control signaling a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs; and sending to the UE via layer 2 control signaling explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0055] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0056] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0057] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas) (shown as antennas 234a through 234t).

[0058] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0059] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0060] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0061] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 9 to 16 ) any aspects of any of the methods described herein.

[0062] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform the operations described herein (e.g., reference 2 Figures 9 to 16 ) any aspects of any of the methods described herein.

[0063] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Fig.13 The process of 1300 Fig.14 1400 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly executed, or executed after compilation, conversion and / or interpretation), may cause one or more processors, UE 120 and / or network node 110 to perform or direct, for example, Fig.13 The process of 1300 Fig.14 The process 1400 and / or operations of other processes as described herein. In some examples, executing the instruction may include running the instruction, converting the instruction, compiling the instruction, and / or interpreting the instruction, etc.

[0064] In some aspects, the UE (e.g., UE 120) includes: a component for receiving (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.) a configuration indicating multiple TRPs and one or more parameters that enable activation or deactivation of TRPs in the multiple TRPs from a first serving cell via layer 3 control signaling; a component for receiving (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.) a configuration indicating multiple TRPs and one or more parameters that enable activation or deactivation of TRPs in the multiple TRPs from the first serving cell via layer 2 control signaling; A component for receiving explicit multi-TRP information in a service cell, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as the primary TRP; and a component for communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, controller / processor 280, transmit processor 264, TX MIMO processor 266, modem 254, etc.). Means for the UE to perform operations described herein may include, for example, one or more of the following: communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0065] In some aspects, a network node (e.g., network node 110) includes: a component for sending (e.g., using a controller / processor 240, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a memory 242, etc.) to a UE via layer 3 control signaling indicating a configuration of multiple TRPs and one or more parameters that enable activation or deactivation of a TRP among the multiple TRPs; and / or a component for sending (e.g., using a controller / processor 240, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a memory 242, etc.) to the UE via layer 2 control signaling explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as the primary TRP. In some aspects, the components for the network node to perform the operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0066] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0067] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0068] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NRBS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing base station functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0069] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0070] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0071] Figure 33 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0072] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces, the one or more interfaces being configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.

[0073] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.

[0074] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partition such as that defined by 3GPP. In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may further host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0075] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions based on functional split (e.g., functional split defined by 3GPP) (such as lower layer functional split), such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of communicating with the control plane and user plane of the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0076] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RTRIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0077] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0078] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0079] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0080] Figure 4 4 is a diagram illustrating an example 400 of a user plane protocol stack and a control plane protocol stack of a network node 110 and a core network for communicating with a UE 120 according to the present disclosure. In some aspects, the network node 110 may include a plurality of network nodes 110. In some aspects, the protocol stack functionality of the network node 110 may be distributed across the plurality of network nodes 110. For example, a first network node 110 may implement a first layer of a protocol stack, and a second network node 110 may implement a second layer of the protocol stack. The distribution of the protocol stack across network nodes (in the example where the protocol stack is distributed across network nodes) may be based at least in part on functional partitioning, as described elsewhere herein. It should be understood that in some aspects, references to "network node 110" may refer to a plurality of network nodes.

[0081] On the user plane, the UE 120 and the network node 110 may include corresponding PHY layers, medium access control (MAC) layers, RLC layers, PDCP layers, and SDAP layers. The user plane function may handle the transmission of user data between the UE 120 and the network node 110. On the control plane, the UE 120 and the network node 110 may include corresponding RRC layers. In addition, the UE 120 may include a non-access stratum (NAS) layer that communicates with an access and management mobility function (AMF). The AMF may be associated with a core network associated with the network node 110, such as a 5G core network (5GC) or a next generation radio access network (NG-RAN). The control plane function may handle the transmission of control information between the UE and the core network. Generally speaking, if a first layer is farther away from the PHY layer than the second layer, the first layer is referred to as being higher than the second layer. For example, the PHY layer may be referred to as the lowest layer, and the SDAP / PDCP / RLC / MAC layer may be referred to as being higher than the PHY layer and lower than the RRC layer. In Figure 4 The application (APP) layer not shown in the figure may be higher than the SDAP / PDCP / RLC / MAC layer. In some cases, an entity may handle the services and functions of a given layer (e.g., a PDCP entity may handle the services and functions of the PDCP layer), although the description herein mentions that the layer itself handles these services and functions.

[0082] The RRC layer may handle communications related to configuring and operating the UE 120, such as: broadcasting of system information related to the access stratum (AS) and NAS; paging initiated by the 5GC or NG-RAN; establishment, maintenance, and release of an RRC connection between the UE and the NG-RAN, including the addition, modification, and release of carrier aggregation (CA), and the addition, modification, and release of dual connectivity; security functions, including key management; establishment, configuration, maintenance, and release of signaling radio bearers (SRBs) and data radio bearers (DRBs); mobility functions (e.g., handover and context transfer, UE cell selection and reselection and control of cell selection and reselection, inter-RAT mobility); quality of service (QoS) management functions; UE measurement reporting and control of reporting; detection of and recovery from radio link failures; and NAS messaging between the NAS layer and lower layers of the UE 120. The RRC layer is often referred to as Layer 3 (L3).

[0083] The SDAP layer, the PDCP layer, the RLC layer, and the MAC layer may be collectively referred to as Layer 2 (L2). Therefore, in some cases, the SDAP, PDCP, RLC, and MAC layers are referred to as sublayers of Layer 2. On the transmitting side (e.g., if the UE 120 is sending uplink communications or the network node 110 is sending downlink communications), the SDAP layer may receive a data stream in the form of a QoS flow. The QoS flow is associated with a QoS identifier and a QoS flow identifier (QFI), which identifies the QoS parameters associated with the QoS flow, and the QoS flow identifier (QFI) identifies the QoS flow. Policy and charging parameters are implemented based on the QoS flow granularity. The QoS flow may include one or more service data flows (SDFs), as long as each SDF of the QoS flow is associated with the same policy and charging parameters. In some aspects, the RRC / NAS layer may generate control information to be sent, and may map the control information to one or more radio bearers to provide to the PDCP layer.

[0084] The SDAP layer or the RRC / NAS layer may map the QoS flow or control information to the radio bearer. Therefore, it can be said that the SDAP layer handles the QoS flow on the sending side. The SDAP layer may provide the QoS flow to the PDCP layer via the corresponding radio bearer. The PDCP layer may map the radio bearer to the RLC channel. The PDCP layer may handle various services and functions on the user plane, including sequence numbering, header compression and decompression (if robust header compression is enabled), delivery, reordering and duplication detection of user data (if in-order delivery to the layer above the PDCP layer is required), PDCP protocol data unit (PDU) routing (in the case of split bearers), retransmission, encryption and decryption of PDCP service data units (SDUs), PDCP SDU discard (e.g., according to a timer, as described elsewhere in this document), PDCP re-establishment and data recovery for RLC acknowledgement mode (AM), and duplication of PDCP PDUs. The PDCP layer may handle similar services and functions on the control plane, including sequence numbering, encryption, decryption, integrity protection, delivery of control plane data, duplication detection, and duplication of PDCP PDUs.

[0085] The PDCP layer may provide data in the form of PDCP PDUs to the RLC layer via an RLC channel. The RLC layer may handle delivery of upper layer PDUs to the MAC and / or PHY layers, sequence numbering independent of the PDCP sequence numbering, error correction via automatic repeat request (ARQ), segmentation and re-segmentation, reassembly of SDUs, RLC SDU discard, and RLC reestablishment.

[0086] The RLC layer can provide the MAC layer with data mapped to logical channels. The services and functions of the MAC layer include mapping between logical channels and transport channels (used by the PHY layer as described below), multiplexing MAC SDUs belonging to one or different logical channels into a transport block (TB) delivered to / from the physical layer on the transport channel, scheduling information reporting, error correction by hybrid ARQ (HARQ), priority handling between UEs with dynamic scheduling, priority handling between logical channels of a UE with logical channel prioritization, and padding.

[0087] The MAC layer can encapsulate data from logical channels into TBs and provide the TBs to the PHY layer on one or more transport channels. The PHY layer can handle various operations related to the transmission of data signals, such as combining Figure 2 The PHY layer is often referred to as Layer 1 (L1).

[0088] On the receiving side (e.g., if the UE 120 is receiving downlink communications or the network node 110 is receiving uplink communications), operations may be similar to those described for the transmitting side, but in the opposite direction. For example, the PHY layer may receive TBs and may provide TBs to the MAC layer on one or more transport channels. The MAC layer may map transport channels to logical channels and may provide data to the RLC layer via the logical channels. The RLC layer may map logical channels to RLC channels and may provide data to the PDCP layer via the RLC channels. The PDCP layer may map RLC channels to radio bearers and may provide data to the SDAP layer or the RRC / NAS layer via the radio bearers.

[0089] Data may be passed between layers in the form of PDUs and SDUs. An SDU is a unit of data that has been passed from a layer or sublayer to a lower layer. For example, a PDCP layer may receive a PDCP SDU. A given layer may then encapsulate the data unit into a PDU and may pass the PDU to a lower layer. For example, a PDCP layer may encapsulate a PDCP SDU into a PDCP PDU and may pass the PDCP PDU to an RLC layer. An RLC layer may receive a PDCP PDU as an RLC SDU, may encapsulate the RLC SDU into an RLC PDU, and so on. In effect, a PDU carries an SDU as a payload.

[0090] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0091] Figure 5An example logical architecture of a distributed RAN 500 according to the present disclosure is illustrated.

[0092] The 5G access node 505 may include an access node controller 510. The access node controller 510 may be a CU of the distributed RAN 500. In some aspects, a backhaul interface to the 5G core network 515 may terminate at the access node controller 510. The 5G core network 515 may include a 5G control plane component 520 and a 5G user plane component 525 (e.g., a 5G gateway), and the backhaul interface for one or both of the 5G control plane and the 5G user plane may terminate at the access node controller 510. Additionally or alternatively, a backhaul interface to one or more neighboring access nodes 530 (e.g., another 5G access node 505 and / or an LTE access node) may terminate at the access node controller 510.

[0093] The access node controller 510 may include one or more TRPs 535 and / or may communicate with one or more TRPs (e.g., via an F1 control (F1-C) interface and / or an F1 user (F1-U) interface). The TRP 535 may include a DU and / or RU of the distributed RAN 500. In some aspects, the TRP 535 may correspond to the above combined Figure 1 The network node 110 described herein may include a plurality of TRPs 535. For example, different TRPs 535 may be included in different network nodes 110. Additionally or alternatively, multiple TRPs 535 may be included in a single network node 110. In some aspects, the network node 110 may include a CU (e.g., an access node controller 510) and / or one or more DUs (e.g., one or more TRPs 535). In some cases, a TRP 535 may be referred to as a cell, a panel, an antenna array, or an array.

[0094] The TRP 535 may be connected to a single access node controller 510 or multiple access node controllers 510. In some aspects, there may be a dynamic configuration of split logical functions within the architecture of the distributed RAN 500, referred to elsewhere herein as functional splitting. For example, the PDCP layer, the RLC layer, and / or the MAC layer may be configured to terminate at the access node controller 510 or the TRP 535.

[0095] In some aspects, multiple TRPs 535 may transmit communications (e.g., the same communication or different communications) in the same transmit time interval (TTI) (e.g., time slot, mini-slot, subframe, or symbol) or in different TTIs using different quasi-co-location (QCL) relationships (e.g., different spatial parameters, different transmit configuration indicator (TCI) states, different pre-coding parameters, and / or different beamforming parameters). In some aspects, the TCI state may be used to indicate one or more QCL relationships. A TRP 535 may be configured to provide services to a UE 120 individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs 535).

[0096] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.

[0097] Figure 6 6 is a diagram illustrating an example 600 of multi-TRP communication (sometimes referred to as multi-panel communication) according to the present disclosure. Figure 6 As shown, multiple TRPs 605 can communicate with the same UE 120. TRP 605 can correspond to the above combination Figure 5 TRP535 as described.

[0098] Multiple TRPs 605 (shown as TRP A and TRP B) may communicate with the same UE 120 in a coordinated manner (e.g., using coordinated multipoint transmission) to improve reliability and / or increase throughput. TRPs 605 may coordinate such communications via interfaces between TRPs 605 (e.g., backhaul interfaces and / or access node controllers 510). When TRPs 605 are co-located at the same network node 110 (e.g., when TRPs 605 are different antenna arrays or panels of the same network node 110), the interface may have less latency and / or higher capacity, and when TRPs 605 are located at different network nodes 110, the interface may have greater latency and / or lower capacity (compared to co-location). Different TRPs 605 may communicate with UE 120 using different QCL relationships (e.g., different TCI states), different DMRS ports, and / or different layers (e.g., different layers in multi-layer communications).

[0099] In a first multi-TRP transmission mode (e.g., Mode 1), a single physical downlink control channel (PDCCH) may be used to schedule downlink data communications of a single physical downlink shared channel (PDSCH). In this case, multiple TRPs 605 (e.g., TRP A and TRP B) may transmit communications to UE 120 on the same PDSCH. For example, communications may be transmitted using a single codeword with different spatial layers for different TRPs 605 (e.g., one of the codewords is mapped to a first set of layers transmitted by a first TRP 605 and is mapped to a second set of layers transmitted by a second TRP 605). As another example, communications may be transmitted using multiple codewords, with different codewords being transmitted by different TRPs 605 (e.g., using different sets of layers). In either case, different TRPs 605 may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, the first TRP 605 may use a first QCL relationship or a first TCI state for a first set of DMRS ports corresponding to a first set of layers, and the second TRP 605 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) set of DMRS ports corresponding to a second (different) set of layers. In some aspects, the TCI state in the downlink control information (DCI) (e.g., sent on the PDCCH, such as DCI format 1_0 or DCI format 1_1) may indicate a first QCL relationship (e.g., by indicating a first TCI state) and a second QCL relationship (e.g., by indicating a second TCI state). The first TCI state and the second TCI state may be indicated using a TCI field in the DCI. Typically, in this multi-TRP transmission mode (e.g., mode 1), the TCI field may indicate a single TCI state (for single TRP transmission) or multiple TCI states (for multi-TRP transmission as discussed herein).

[0100] In a second multi-TRP transmission mode (e.g., Mode 2), multiple PDCCHs may be used to schedule downlink data communications for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH). In this case, the first PDCCH may schedule a first codeword to be sent by the first TRP 605, and the second PDCCH may schedule a second codeword to be sent by the second TRP 605. In addition, a first DCI (e.g., sent by the first TRP 605) may schedule a first PDSCH communication associated with a first set of DMRS ports having a first QCL relationship (e.g., indicated by a first TCI state) for use with the first TRP 605, and a second DCI (e.g., sent by the second TRP 605) may schedule a second PDSCH communication associated with a second set of DMRS ports having a second QCL relationship (e.g., indicated by a second TCI state) for use with the second TRP 605. In this case, the DCI (e.g., having DCI format 1_0 or DCI format 1_1) may indicate a corresponding TCI state corresponding to the DCI for the TRP 605. The TCI field of the DCI indicates the corresponding TCI state (e.g., the TCI field of the first DCI indicates the first TCI state and the TCI field of the second DCI indicates the second TCI state).

[0101] In some cases, one or more serving cells may be aggregated to serve a UE, such as UE 120. For example, UE 120 may be served by a primary cell (PCell) and / or a secondary cell (SCell). The PCell may be configured to perform a random access procedure, radio link monitoring, a handover procedure, and / or physical uplink control channel (PUCCH) transmission, etc. The SCell may be a cell operating on a different frequency (e.g., a secondary frequency) and may be configured to provide additional radio services to UE 120 once an RRC connection has been established. As described in more detail below, UE 120 may be associated with the PCell and one or more SCells and may be configured to switch between the PCell and the SCell and between TRPs associated with the PCell and the SCell.

[0102] As indicated above, Figure 6 are provided as examples. Other examples can be found in Figure 6 The content described is different.

[0103] Figure 7700 is a diagram illustrating an example of TCI state switching according to the present disclosure. A UE (such as UE 120) may switch from communicating with a first TRP (such as TRP 705) to communicating with a second TRP (such as TRP 710). TRP 705 and TRP 710 may include some or all of the features of TRP 535 and / or TRP 605 described herein. As shown in conjunction with reference numeral 715, TRP 705 and UE 120 may communicate L1 measurement values. The L1 measurement values ​​may include physical layer measurement values. As shown in reference numeral 720, TRP 710 may send and UE 120 may receive a MAC control element (MAC-CE) for CA or for initiating a PCell change. As shown in reference numeral 725, TRP 705 and UE 120 may communicate additional L1 measurement values ​​based at least in part on the communication of the MAC-CE. As shown by reference numeral 730, the TRP 705 may send and the UE 120 may receive TCI information (such as a TCI state identifier). The UE 120 and / or the network node 110 may be configured to deactivate the TRP 705 and activate the TRP 710 based at least in part on the communication of the TCI state identifier. The UE 120 may switch from communicating with the TRP 705 to communicating with the TRP 710 based at least in part on the deactivation of the TRP 705 and the activation of the TRP 710. For example, due to the separate communication of the L1 measurement value, the MAC-CE, and the TCI state identifier, switching between communicating with the TRP 705 and communicating with the TRP 710 as shown in example 700 may introduce latency. Additional details regarding these features are described below.

[0104] As indicated above, Figure 7 are provided as examples. Other examples can be found in Figure 7 The content described is different.

[0105] FIG. 8A to FIG. 8B are diagrams illustrating examples 800 and 805 of MAC-CE communications for inter-frequency handover according to the present disclosure.

[0106] like Fig. 8AAs shown, and as indicated by reference numeral 810, one or more cells may be activated or deactivated. For example, a network node (such as network node 110) may send and a UE (such as UE 120) may receive a first MAC-CE, the first MAC-CE indicating activation or deactivation of the one or more cells (e.g., one or more SCells). In some cases, the first MAC-CE may include a bitmap indicating a plurality of cells. For example, the bitmap may include a number of bits, wherein each bit of the bitmap corresponds to a corresponding cell in the plurality of cells. A first value (e.g., "1") of a bit of the bitmap may indicate that the corresponding cell is activated, and a second value (e.g., "0") of the bit may indicate that the corresponding cell is deactivated. In one example, the bitmap may include 31 bits corresponding to 31 SCells, respectively. The 31 bits may be included in four octets of the MAC-CE. As shown by reference numeral 815, the first MAC-CE may include one or more tracking reference signal (TRS) identifiers. For example, the first MAC-CE may include a number (n) of TRS identifiers corresponding to the number of activated cells (e.g., the number of activated SCells indicated by the bitmap). Each of the one or more TRS identifiers may be associated with an octet. For example, the first MAC-CE may include n octets corresponding to n TRS identifiers, respectively, where the n TRS identifiers correspond to the number of activated cells. In some cases, the TRS identifier may be associated with an RRC configuration information element (IE).

[0107] like Figure 8BAs shown, and as indicated by reference numeral 820, one or more cells may be activated or deactivated. For example, the network node 110 may send and the UE 120 may receive a second MAC-CE indicating activation or deactivation of one or more cells (e.g., one or more PCells and / or one or more SCells). In some cases, the second MAC-CE may include a bitmap including a plurality of bits corresponding to the number of cells, respectively. A first value of a bit (e.g., "1") may indicate that the corresponding cell is activated, and a second value of the bit (e.g., "0") may indicate that the corresponding cell is deactivated. In one example, the bitmap may include 31 bits corresponding to 31 cells, respectively. The 31 bits may be represented by four octets. As shown by reference numeral 825, the second MAC-CE may include one or more TRS identifiers. For example, the second MAC-CE may include a number (n) of TRS identifiers corresponding to the number of activated cells. Each of the one or more TRS identifiers may be associated with an octet. For example, the second MAC-CE may include n octets corresponding to n TRS identifiers, respectively, where the n TRS identifiers correspond to the number of cells activated. As shown in reference numeral 830, the second MAC-CE may include PCell information associated with the activated PCell. The PCell information may be included in a single bit of the second MAC-CE. In some cases, the PCell information may include one or more bits (e.g., X bits) indicating an identifier of the activated PCell, and may include one or more other bits (e.g., Y bits) indicating an RRC configuration IE for the activated PCell.

[0108] In some cases, the first MAC-CE may be configured to activate or deactivate the SCell, and the second MAC-CE may be configured to activate or deactivate the PCell and the SCell. For example, the first MAC-CE and the second MAC-CE may be used for inter-frequency switching. However, the first MAC-CE and the second MAC-CE may not be used for intra-frequency switching, such as switching between TRPs. For example, the first MAC-CE and the second MAC-CE may not include information necessary to activate and deactivate the TRP. In some cases, the TRP may be activated or deactivated based at least in part on information (e.g., implicit information) included in the TCI state information. The TCI state information may be sent using higher layer signaling (such as RRC signaling). However, this may result in a delay in intra-frequency switching.

[0109] Techniques and apparatus for signaling for multi-TRP activation and deactivation are described herein. A network node and a UE may transmit multi-TRP information. The multi-TRP information may be explicit multi-TRP information. For example, the multi-TRP information may not be included in the TCI status information. In some aspects, the network node may send and the UE may receive a MAC-CE including the explicit multi-TRP information. The explicit multi-TRP information may include information for activating and deactivating the TRP. The network node and / or the UE may activate a TRP and a PCell associated with the TRP based at least in part on the explicit multi-TRP information, and may deactivate another TRP and another PCell associated with the another TRP.

[0110] As described above, in some cases, the TRP may be activated or deactivated based at least in part on information (e.g., implicit information) included in the TCI status information. The TCI status information may be sent using higher layer signaling (such as RRC signaling). However, this may result in a delay in the same frequency switching. Using the techniques and apparatus described herein, the UE and the network node may communicate a MAC-CE including explicit multi-TRP information for activating and deactivating the TRP. The UE and / or the network node may activate a TRP and a PCell associated with the TRP based at least in part on the explicit multi-TRP information, and may deactivate another TRP and another PCell associated with the other TRP. This may reduce the delay required for same frequency switching (such as switching between the TRP and the other TRP). Additional details are described herein.

[0111] As indicated above, FIG. 8A to FIG. 8B are provided as examples. Other examples can be found in FIG. 8A to FIG. 8B The content described is different.

[0112] Fig. 9 900 is a diagram illustrating an example of signaling for multi-TRP activation and deactivation according to the present disclosure. A UE, such as UE 120, may communicate with one or more network nodes, such as network node 110-1 and network node 110-2. In some aspects, network node 110-1 may be associated with a first serving cell of UE 120, and network node 110-2 may be associated with a second serving cell of UE 120.

[0113] As indicated by reference numeral 905, the network node 110 may send and the UE 120 may receive layer 3 control signaling indicating configuration of a plurality of TRPs and one or more parameters that enable activation or deactivation of a TRP among the plurality of TRPs. For example, the one or more parameters may indicate information associated with the first serving cell (e.g., the current serving cell), information associated with a first TRP associated with the first serving cell, information associated with the second serving cell (e.g., the serving cell to be activated), and information associated with a second TRP associated with the second serving cell. In some aspects, the one or more parameters may include information for switching from the first serving cell to the second serving cell and / or information for switching from the first TRP to the second TRP.

[0114] As shown by reference numeral 910, the network node 110 may send and the UE 120 may receive layer 2 control signaling including explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs. For example, the multi-TRP information may indicate that the second service cell is to be activated as a primary cell and the TRP associated with the second service cell is to be activated as a primary TRP. In some aspects, the multi-TRP information indicating activation of the second service cell and the TRP associated with the second service cell from the multiple TRPs indicates activation of both (i) the second service cell and (ii) the second TRP associated with the second service cell from the multiple TRPs. More generally, the layer 2 control signaling including the explicit multi-TRP information may indicate activation of the second service cell and one or more TRPs associated with the second service cell from the multiple TRPs. In this case, the primary TRP (or non-primary TRP) may be selected from the one or more TRPs associated with the second service cell. Additional details regarding these features are described below.

[0115] As indicated by reference numeral 915, UE 120 may communicate with network node 110-2 (e.g., a second serving cell) and the second TRP based at least in part on the explicit multi-TRP information and the one or more parameters. In some aspects, UE 120 may activate the second serving cell (e.g., network node 110-2) and the second TRP associated with the second serving cell based at least in part on the explicit multi-TRP information and the one or more parameters, and may deactivate the first serving cell (e.g., network node 110-1) and the first TRP associated with the first serving cell. UE 120 may communicate with the second serving cell and the second TRP based at least in part on activating the second serving cell and the second TRP and based at least in part on deactivating the first serving cell and the first TRP associated with the first serving cell.

[0116] In some aspects, the multi-TRP information may include cell identifier information, TRS identifier information, and PCell information. Additionally, the multi-TRP information may optionally include a SpCell configuration identifier. The cell identifier information may include a cell bitmap, which includes a plurality of bits corresponding to a plurality of cells, respectively. For example, each bit of the cell bitmap may correspond to a cell in the plurality of cells. The first state of the bit (e.g., "1") may indicate that the corresponding cell is activated and the second state of the bit (e.g., "0") may indicate that the corresponding cell is deactivated. In one example, the cell bitmap may include 31 bits (e.g., bit 1 to bit 31) included in four octets of the multi-TRP information. The TRS identifier information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each TRS identifier of the one or more TRS identifiers may be associated with an octet. For example, if there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. The PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. The PCell information may be included in a single octet of the multi-TRP information. The SpCell configuration identifier may only be included in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may only be included in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In combination Fig. 10A Additional details regarding these features are described.

[0117] In some aspects, the multi-TRP information may include cell identifier information, TRS identifier information, a TRP bitmap, and PCell information. The multi-TRP information may include a TRP bitmap portion indicating a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs may include the primary cell. Additionally, the multi-TRP information may optionally include a SpCell configuration identifier. The cell identifier information may include a cell bitmap including a plurality of bits corresponding to a plurality of cells, respectively. For example, each bit of the cell bitmap may correspond to a cell in the plurality of cells. The first state of the bit (e.g., "1") may indicate that the corresponding cell is activated and the second state of the bit (e.g., "0") may indicate that the corresponding cell is deactivated. In one example, the cell bitmap may include 31 bits (e.g., bit 1 to bit 31) included in four octets of the multi-TRP information. The TRS identifier information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to the corresponding activated cell. The TRP bitmap may indicate one or more TRPs (e.g., a set of TRPs) within the activated cell. The TRP bitmap may include multiple bits, each of which corresponds to a TRP within the activated cell. The first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated, and the second state of the bit may indicate that the corresponding TRP is deactivated. The PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with the activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. The PCell information may be included in a single octet of the multi-TRP information. The SpCell configuration identifier may be included in the multi-TRP information only based at least in part on the cell having been previously deactivated. For example, before the communication of the MAC-CE, the SpCell configuration identifier may be included in the multi-TRP information only based at least in part on the cell not being an active SCell or an active PCell. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. Fig. 10B Additional details regarding these features are described.

[0118] In some aspects, the multi-TRP information may include cell-TRP combination information, TRS identifier information, and PCell information. Additionally, the multi-TRP information may optionally include a SpCell configuration identifier. The cell-TRP combination information may include a cell-TRP bitmap, which includes multiple bits corresponding to multiple cell-TRP combinations, respectively. The first state (e.g., "1") of the bit of the cell-TRP bitmap may indicate that the corresponding cell-TRP combination is activated and the second state (e.g., "0") of the bit may indicate that the corresponding cell-TRP combination is deactivated. In one example, the cell-TRP bitmap may include 256 bits included in the 32 octets of the multi-TRP information. The TRS identifier information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to the corresponding activated cell. The TRP bitmap may indicate one or more TRPs within the activated cell. The TRP bitmap may include multiple bits, each of which corresponds to a TRP within the activated cell. The first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated, and the second state of the bit may indicate that the corresponding TRP is deactivated. The PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with the activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. The PCell information may be included in a single octet of the multi-TRP information. The SpCell configuration identifier may be included only in the multi-TRP information based at least in part on a cell that has been previously deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the fact that the cell is not an active SCell or an active PCell. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. Fig.11A Additional details regarding these features are described.

[0119] In some aspects, the multi-TRP information may include cell-TRP combination decoding information, TRS identifier information, and PCell information. Additionally, the multi-TRP information may optionally include a SpCell configuration identifier. The cell-TRP combination decoding information may include decoding signaling based at least in part on the above-mentioned cell-TRP combination information (e.g., cell-TRP combination bitmap). In some aspects, the cell-TRP combination decoding information may be represented by 40 bits included in five octets of the multi-TRP information. The TRS identifier information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each TRS identifier in the one or more TRS identifiers may be associated with an octet. For example, if there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. The TRP bitmap may indicate one or more TRPs within the activated cell. The TRP bitmap may include multiple bits, each of which corresponds to a TRP within the activated cell. The first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated, and the second state of the bit may indicate that the corresponding TRP is deactivated. The PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with the activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. The PCell information may be included in a single octet of the multi-TRP information. The SpCell configuration identifier may be included only in the multi-TRP information based at least in part on a cell that has been previously deactivated. For example, before the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the fact that the cell is not an active SCell or an active PCell. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. Combined with Fig. 11B Additional details regarding these features are described.

[0120] In some aspects, the multi-TRP information may include TRP bitmap information, column set information, row set information, TRS identifier information, and PCell information. Additionally, the multi-TRP information may optionally include a SpCell configuration identifier. Additionally or alternatively, the multi-TRP information may optionally include TCI status information. The TRP bitmap may include a plurality of bits corresponding to a plurality of TRPs, respectively. For example, each bit of the TRP bitmap may correspond to a TRP among the plurality of TRPs. The first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated and the second state of the bit (e.g., "0") may indicate that the corresponding TRP is deactivated. In one example, the TRP bitmap may include eight bits (e.g., bit 0 to bit 7) included in a single octet of the multi-TRP information. The column set information may include an octet for each activated TRP of a column set for carrying an active cell index (e.g., as indicated by the TRP bitmap). The number of activated TRPs may be represented by m. The column set of active cell indexes may be based at least in part on the decoding information described herein. The row set information may include half (1 / 2 octets) of the octets of each activated TRP for the row set carrying the active cell index (e.g., as indicated by the TRP bitmap). The row set of active cell indexes may be based at least in part on the decoding information described herein. In one example, 12 bits (1.5 octets) may be required to signal any possible combination of any cell with a TRP index. The TRS identifier information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each TRS identifier in the one or more TRS identifiers may be associated with an octet. For example, if there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. The TRP bitmap may indicate one or more TRPs within the activated cell. The TRP bitmap may include multiple bits, each of which corresponds to a TRP within the activated cell. The first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated, and the second state of the bit may indicate that the corresponding TRP is deactivated. The PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. The PCell information may be included in a single octet of the multi-TRP information.The SpCell configuration identifier may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. The TCI state identifier may include TCI information associated with the activated PCell and may be included in a single octet of the multi-TRP information. The TCI state identifier may be optional (e.g., the multi-TRP information may not include the TCI state identifier). Combination. Fig.12 Additional details regarding these features are described.

[0121] As described above, in some cases, a TRP may be activated or deactivated based at least in part on information (e.g., implicit information) included in the TCI state information. The TCI state information may be sent using higher layer signaling (such as RRC signaling). However, this may result in a delay in the same frequency switching. Using the techniques and devices described herein, the UE and the network node may communicate a MAC-CE including explicit multi-TRP information for activating and deactivating the TRP. The UE and / or the network node may activate a TRP and a PCell associated with the TRP based at least in part on the explicit multi-TRP information, and may deactivate another TRP and another PCell associated with the other TRP. The UE may communicate with the TRP based at least in part on the TRP being activated, and may no longer communicate with the other TRP based at least in part on the other TRP being deactivated. This may reduce the delay required for same frequency switching (such as switching between the TRP and the other TRP).

[0122] As indicated above, Fig. 9 are provided as examples. Other examples can be found in Fig. 9 The content described is different.

[0123] FIG. 10A to FIG. 10B 1000 and 1005 are diagrams illustrating examples of multi-TRP information for TRP activation and deactivation according to the present disclosure. A network node, such as network node 110, may send the multi-TRP information to a UE, such as UE 120. In some aspects, network node 110 may send and UE 120 may receive a MAC-CE including the multi-TRP information. The multi-TRP information may be explicit multi-TRP information. For example, the multi-TRP information may not be included as part of a TCI state identifier.

[0124] Fig. 10AA first option for communicating multiple TRP information as described herein is shown. As shown by reference numeral 1010, one or more cells may be activated or deactivated. In some aspects, the multiple TRP information may include cell identifier information. The cell identifier information may include a cell bitmap, which includes a plurality of bits corresponding to a plurality of cells, respectively. For example, each bit of the cell bitmap may correspond to a cell in the plurality of cells. A first state of the bit (e.g., "1") may indicate that the corresponding cell is activated and a second state of the bit (e.g., "0") may indicate that the corresponding cell is deactivated. In some aspects, one or more cells may be associated with a cell identifier. In this case, a selection bit of the cell bitmap may be associated with a selected cell identifier, and another selection bit of the cell bitmap may be associated with another selected cell identifier. In one example, the cell bitmap may include 31 bits (e.g., bit 1 to bit 31) included in four octets of the multiple TRP information. In some aspects, the cell identifier information (e.g., the cell bitmap indicating the plurality of cells) may be included in the cell identifier portion of the multiple TRP information.

[0125] As shown by reference numeral 1015, the multi-TRP information may include one or more TRS identifiers. For example, the multi-TRP information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if the cell bitmap indicates that there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. In some aspects, the TRS identifier may be associated with an RRC configuration IE. The octet associated with the TRS identifier may enable the UE 120 to select from up to 256 RRC configurations of a PCell or SCell. In some aspects, the TRS identifier may be included in the TRS portion of the multi-TRP information.

[0126] As shown by reference numeral 1020, the multi-TRP information may include PCell information associated with the activated PCell. In some aspects, only one PCell may be activated for UE 120 at a given time. The PCell information may be included in a single octet of the multi-TRP information. In some aspects, the PCell information may include cell identifier information associated with the PCell (or SpCell) and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. In some aspects, the PCell information may be included in the PCell information portion of the multi-TRP information.

[0127] As indicated by reference numeral 1025, the multi-TRP information may include a SpCell configuration identifier. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In some aspects, the SpCell configuration identifier (e.g., the octet including the SpCell configuration identifier) ​​may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. In some aspects, the octet associated with the SpCell configuration identifier may enable the UE 120 to select from up to 256 RRC configurations of the SpCell.

[0128] Fig. 10BA second option for communicating multiple TRP information as described herein is shown. As shown by reference numeral 1030, one or more cells may be activated or deactivated. In some aspects, the multiple TRP information may include cell identifier information. The cell identifier information may include a cell bitmap, which includes a plurality of bits corresponding to a plurality of cells, respectively. For example, each bit of the cell bitmap may correspond to a cell in the plurality of cells. A first state of the bit (e.g., "1") may indicate that the corresponding cell is activated and a second state of the bit (e.g., "0") may indicate that the corresponding cell is deactivated. In some aspects, one or more cells may be associated with a cell identifier. In this case, a selection bit of the cell bitmap may be associated with a selected cell identifier, and another selection bit of the cell bitmap may be associated with another selected cell identifier. In one example, the cell bitmap may include 31 bits (e.g., bit 1 to bit 31) included in four octets of the multiple TRP information. In some aspects, the cell identifier information (e.g., the cell bitmap indicating the plurality of cells) may be included in the cell identifier portion of the multiple TRP information.

[0129] As shown by reference numeral 1035, the multi-TRP information may include one or more TRS identifiers. For example, the multi-TRP information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if the cell bitmap indicates that there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. In some aspects, the TRS identifier may be associated with an RRC configuration IE. The octet associated with the TRS identifier may enable the UE 120 to select from up to 256 RRC configurations of a PCell or SCell. In some aspects, the TRS identifier may be included in the TRS portion of the multi-TRP information.

[0130] As shown in reference numeral 1040, the multi-TRP information may include a TRP bitmap. For example, for each activated cell, the multi-TRP information may include a TRP bitmap indicating a TRP within the activated cell. The TRP bitmap may include a plurality of bits, wherein each bit corresponds to a TRP within the activated cell. A first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated, and a second state of the bit may indicate that the corresponding TRP is deactivated.

[0131] As shown by reference numeral 1045, the multi-TRP information may include PCell information associated with the activated PCell. In some aspects, only one PCell may be activated for UE 120 at a given time. The PCell information may be included in a single octet of the multi-TRP information. In some aspects, the PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. In some aspects, the PCell information may be included in the PCell information portion of the multi-TRP information.

[0132] As indicated by reference numeral 1050, the multi-TRP information may include a SpCell configuration identifier. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In some aspects, the SpCell configuration identifier (e.g., the octet including the SpCell configuration identifier) ​​may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. In some aspects, the octet associated with the SpCell configuration identifier may enable the UE 120 to select from up to 256 RRC configurations of the SpCell.

[0133] As indicated above, FIG. 10A to FIG. 10B are provided as examples. Other examples can be found in FIG. 10A to FIG. 10B The content described is different.

[0134] FIG. 11A to FIG. 11B 1100 and 1105 are diagrams illustrating examples of multi-TRP information for TRP activation and deactivation according to the present disclosure. A network node (such as network node 110) may send the multi-TRP information to a UE (such as UE 120). In some aspects, network node 110 may send and UE 120 may receive a MAC-CE including the multi-TRP information. The multi-TRP information may be explicit multi-TRP information. For example, the multi-TRP information may not be included as part of a TCI state identifier.

[0135] Fig.11AA third option for communicating multiple TRP information as described herein is shown. As shown by reference numeral 1110, one or more cells and one or more TRPs may be activated or deactivated. In some aspects, the multiple TRP information may include cell-TRP combination information. The cell-TRP combination information may include a cell-TRP bitmap, which includes multiple bits corresponding to multiple cell-TRP combinations, respectively. For example, a first bit may correspond to a first cell-TRP combination associated with a first cell and a first TRP, a second bit may correspond to a second cell-TRP combination associated with the first cell and a second TRP, a third bit may correspond to a cell-TRP combination associated with a second cell and the first TRP, and a fourth bit may correspond to a cell-TRP combination associated with the second cell and the second TRP, and so on. The first state of the bit (e.g., "1") may indicate that the corresponding cell-TRP combination is activated and the second state of the bit (e.g., "0") may indicate that the corresponding cell-TRP combination is deactivated. In one example, the cell-TRP bitmap may include 256 bits included in the 32 octets of the multi-TRP information.

[0136] As shown by reference numeral 1115, the multi-TRP information may include one or more TRS identifiers. For example, the multi-TRP information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if the cell bitmap indicates that there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. In some aspects, the TRS identifier may be associated with an RRC configuration IE. The octet associated with the TRS identifier may enable the UE 120 to select from up to 256 RRC configurations of a PCell or SCell. In some aspects, the TRS identifier may be included in the TRS portion of the multi-TRP information.

[0137] As shown by reference numeral 1120, the multi-TRP information may include PCell information associated with the activated PCell. In some aspects, only one PCell may be activated for UE 120 at a given time. The PCell information may be included in a single octet of the multi-TRP information. In some aspects, the PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. In some aspects, the PCell information may be included in the PCell information portion of the multi-TRP information.

[0138] As indicated by reference numeral 1125, the multi-TRP information may include a SpCell configuration identifier. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In some aspects, the SpCell configuration identifier (e.g., the octet including the SpCell configuration identifier) ​​may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. In some aspects, the octet associated with the SpCell configuration identifier may enable the UE 120 to select from up to 256 RRC configurations of the SpCell.

[0139] Fig. 11B A fourth option for communicating multiple TRP information as described herein is shown. As shown by reference numeral 1130, one or more cells and one or more TRPs may be activated or deactivated. In some aspects, the multiple TRP information may include cell-TRP combination decoding information. The cell-TRP combination decoding information may include decoding signaling based at least in part on the cell-TRP combination information (e.g., cell-TRP combination bitmap) described above in conjunction with reference numeral 1110. In some aspects, the TRP information associated with the cell-TRP combination information may be decoded based at least in part on:

[0140]

[0141] where #bits c is the number of bits representing the column of TRP, and

[0142] k is the number of TRPs.

[0143] In some aspects, the cell information associated with the cell-TRP combination information may be coded based at least in part on:

[0144]

[0145] where #bits r is the number of bits representing the row of cells, and

[0146] k is the number of cells.

[0147] An example of the cell-TRP combination decoding information is shown by reference numeral 1150. In some aspects, the cell-TRP combination decoding information can be represented by 40 bits included in five octets of the multi-TRP information. Thus, the number of octets required to indicate the cell-TRP combination can be reduced.

[0148] As shown by reference numeral 1135, the multi-TRP information may include one or more TRS identifiers. For example, the multi-TRP information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if the cell bitmap indicates that there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. In some aspects, the TRS identifier may be associated with an RRC configuration IE. The octet associated with the TRS identifier may enable the UE 120 to select from up to 256 RRC configurations of a PCell or SCell. In some aspects, the TRS identifier may be included in the TRS portion of the multi-TRP information.

[0149] As shown by reference numeral 1140, the multi-TRP information may include PCell information associated with the activated PCell. In some aspects, only one PCell may be activated for UE 120 at a given time. The PCell information may be included in a single octet of the multi-TRP information. In some aspects, the PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. In some aspects, the PCell information may be included in the PCell information portion of the multi-TRP information.

[0150] As indicated by reference numeral 1145, the multi-TRP information may include a SpCell configuration identifier. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In some aspects, the SpCell configuration identifier (e.g., the octet including the SpCell configuration identifier) ​​may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. In some aspects, the octet associated with the SpCell configuration identifier may enable the UE 120 to select from up to 256 RRC configurations of the SpCell.

[0151] As indicated above, FIG. 11A to FIG. 11B are provided as examples. Other examples can be found in FIG. 11A to FIG. 11B The content described is different.

[0152] Fig.12 1 is a diagram illustrating an example 1200 of multiple TRP information for TRP activation and deactivation according to the present disclosure. A network node (such as network node 110) may send the multiple TRP information to a UE (such as UE 120). In some aspects, network node 110 may send and UE 120 may receive a MAC-CE including the multiple TRP information. The multiple TRP information may be explicit multiple TRP information. For example, the multiple TRP information may not be included as part of a TCI state identifier.

[0153] Fig.12 A fifth option for communicating multiple TRP information as described herein is shown. As shown by reference numeral 1205, one or more TRPs may be activated or deactivated. In some aspects, the multiple TRP information may include a TRP bitmap including multiple bits corresponding to multiple TRPs, respectively. For example, each bit of the TRP bitmap may correspond to a TRP among the multiple TRPs. A first state of the bit (e.g., "1") may indicate that the corresponding TRP is activated and a second state of the bit (e.g., "0") may indicate that the corresponding TRP is deactivated. In one example, the TRP bitmap may include eight bits (e.g., bit 0 to bit 7) included in a single octet of the multiple TRP information.

[0154] As shown by reference numeral 1210, the multi-TRP information may include column information. For example, for each activated TRP (e.g., as indicated by the TRP bitmap), the multi-TRP information may include an octet carrying a column set of active cell indices. The number of activated TRPs may be represented by m. In some aspects, the column set of active cell indices may be based at least in part on decoding information. The decoding information may be represented as follows:

[0155]

[0156] where #bits c is the number of bits in the column, and

[0157] k is the number of TRPs.

[0158] As indicated by reference numeral 1215, the multi-TRP information may include row information. For example, for each activated TRP (e.g., as indicated by the TRP bitmap), the multi-TRP information may include half of a row set of octets (1 / 2 octets) carrying active cell indices. In some aspects, the row set of active cell indices may be based at least in part on decoding information. The decoding information may be represented as follows:

[0159]

[0160] where #bits r is the number of bits in the row, and

[0161] k is the number of cells.

[0162] An example of this decoded information is shown by reference numeral 1240. For example, 12 bits (1.5 octets) may be required to signal any possible combination of any cells having a TRP index.

[0163] As shown by reference numeral 1220, the multi-TRP information may include one or more TRS identifiers. For example, the multi-TRP information may include a TRS identifier for each activated cell, such as for each cell indicated as an activated cell by the cell bitmap. Each of the one or more TRS identifiers may be associated with an octet. For example, if the cell bitmap indicates that there are n activated cells, the multi-TRP information may include n octets, each of which indicates a TRS identifier corresponding to a corresponding activated cell. In some aspects, the TRS identifier may be associated with an RRC configuration IE. The octet associated with the TRS identifier may enable the UE 120 to select from up to 256 RRC configurations of a PCell or SCell. In some aspects, the TRS identifier may be included in the TRS portion of the multi-TRP information.

[0164] As shown by reference numeral 1225, the multi-TRP information may include PCell information associated with the activated PCell. In some aspects, only one PCell may be activated for UE 120 at a given time. The PCell information may be included in a single octet of the multi-TRP information. In some aspects, the PCell information may include cell identifier information associated with the PCell and / or may include TRP index information associated with an activated TRP within the PCell. For example, the PCell information may include one or more bits indicating the cell identifier information associated with the activated PCell and may include one or more other bits indicating the TRP index information associated with the activated TRP. In some aspects, the PCell information may be included in the PCell information portion of the multi-TRP information.

[0165] As indicated by reference numeral 1230, the multi-TRP information may include a SpCell configuration identifier. The SpCell configuration identifier may be included in a single octet of the multi-TRP information. In some aspects, the SpCell configuration identifier (e.g., the octet including the SpCell configuration identifier) ​​may be included only in the multi-TRP information based at least in part on a cell that has previously been deactivated. For example, prior to the communication of the MAC-CE, the SpCell configuration identifier may be included only in the multi-TRP information based at least in part on the cell not being an active SCell or an active PCell. In some aspects, the octet associated with the SpCell configuration identifier may enable the UE 120 to select from up to 256 RRC configurations of the SpCell.

[0166] As shown in reference numeral 1235, the multi-TRP information may include a TCI state identifier. The TCI state identifier may be included in a single octet of the multi-TRP information. The TCI state identifier may include TCI information associated with an activated PCell. As shown, the TCI state identifier may be optional. Therefore, in some aspects, the multi-TRP information may not include the TCI state identifier.

[0167] As indicated above, Fig.12 are provided as examples. Other examples can be found in Fig.12 The content described is different.

[0168] Fig.13 1 is a diagram illustrating an example process 1300 performed, for example, by a UE according to the present disclosure. The example process 1300 is an example in which the UE (e.g., UE 120) performs operations associated with signaling for multi-TRP activation and deactivation.

[0169] like Fig.13 As shown, in some aspects, process 1300 may include: receiving, via layer 3 control signaling from a first serving cell, one or more parameters indicating a configuration of a plurality of TRPs and enabling activation or deactivation of a TRP in the plurality of TRPs (block 1310). For example, the UE (e.g., using Fig.15 The communication manager 140 and / or receiving component 1502 depicted in the embodiment may receive from the first serving cell via layer 3 control signaling indicating the configuration of multiple TRPs and one or more parameters that enable activation or deactivation of a TRP in the multiple TRPs, as described above, for example with reference to Fig. 9 , Fig. 10A , Fig. 10B , Fig.11A , Fig. 11B and / or Fig.12 As described.

[0170] like Fig.13 As further shown, in some aspects, process 1300 may include: receiving explicit multi-TRP information from the first serving cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the plurality of TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP (block 1320). For example, the UE (e.g., using Fig.15 The communication manager 140 and / or receiving component 1502 depicted in the figure may receive explicit multi-TRP information from the first service cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP, as described above, for example with reference to Fig. 9 , Fig. 10A , Fig. 10B , Fig.11A , Fig. 11B and / or Fig.12 As described.

[0171] like Fig.13 As further shown, in some aspects, process 1300 may include: communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters (block 1330). Fig.15The communication manager 140, receiving component 1502 and / or sending component 1504 depicted in the figure may communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters, as described above, for example with reference to Fig. 9 , Fig. 10A , Fig. 10B , Fig.11A , Fig. 11B and / or Fig.12 As described.

[0172] Process 1300 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0173] In a first aspect, the explicit multi-TRP information includes a bitmap identifying multiple cells.

[0174] In a second aspect, alone or in combination with the first aspect, the bitmap comprises a plurality of bits corresponding to the plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

[0175] In the third aspect, alone or in combination with one or more of the first and second aspects, the explicit multi-TRP information includes: a cell identifier part, which includes multiple cell identifiers, wherein one or more cell identifiers of the multiple cell identifiers respectively indicate one or more activated cells; a TRS part, which includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information part, which includes information associated with the primary cell.

[0176] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0177] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, the cell identifier part includes a bitmap, which includes multiple bits corresponding to the multiple cell identifiers respectively, and the main cell information part includes one or more bits indicating the cell identifier associated with the main cell and one or more other bits indicating the TRP index associated with the main TRP.

[0178] In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the cell identifier portion is included in four octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0179] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the explicit multi-TRP information also includes a TRP bitmap portion, which indicates a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

[0180] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the TRP bitmap portion includes a plurality of TRP bits corresponding to the plurality of TRPs, respectively, wherein a first state of a TRP bit among the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated.

[0181] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the explicit multi-TRP information includes: a joint bitmap portion, which includes joint bitmap information associated with multiple cell-TRP combinations; a TRS portion, which includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in one or more activated cells; and a primary cell information portion, which includes information associated with the primary cell.

[0182] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the joint bitmap information includes multiple joint bitmap bits corresponding to the multiple cell-TRP combinations, respectively, wherein a first state of a joint bitmap bit among the multiple joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

[0183] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0184] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0185] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in thirty-two octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the main cell information portion is included in a single octet.

[0186] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the joint bitmap information includes decoding information associated with the multiple cell-TRP combinations.

[0187] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in five octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the main cell information portion is included in a single octet.

[0188] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the explicit multi-TRP information includes: a TRP bitmap portion, the TRP bitmap portion including a plurality of TRP bits corresponding to the plurality of TRPs, respectively, wherein a first state of a TRP bit among the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion including cell row combination information associated with the one or more activated cells; a TRS portion, the TRS portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0189] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the explicit multi-TRP information also includes decoding information associated with the cell column combination information and the cell row combination information.

[0190] In the eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0191] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0192] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the TRP bitmap portion is included in a single octet, the cell column portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, the cell row portion is included in several octets of the multiple octets corresponding to half of the several cells associated with the one or more activated cells, the TRS portion is included in several octets of the multiple octets corresponding to the several cells associated with the one or more activated cells, and the master cell information portion is included in another single octet.

[0193] In a twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, the explicit multi-TRP information further comprises a sending configuration indicator state identifier.

[0194] although Fig.13 Example blocks of process 1300 are shown, but in some aspects, process 1300 may include Fig.13 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1300 may be performed in parallel.

[0195] Fig.14 14 is a diagram illustrating an example process 1400 performed, for example, by a network node in accordance with the present disclosure. The example process 1400 is an example in which the network node (eg, network node 110) performs operations associated with signaling for multi-TRP activation and deactivation.

[0196] like Fig.14 As shown, in some aspects, process 1400 may include: sending to the UE via layer 3 control signaling indicating a configuration of a plurality of TRPs and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs (block 1410). For example, the network node (e.g., using Fig.16 The communication manager 150 and / or the sending component 1604 depicted in the embodiment may send to the UE via layer 3 control signaling indicating the configuration of multiple TRPs and one or more parameters that enable activation or deactivation of a TRP in the multiple TRPs, as described above, for example with reference to Fig. 9 , Fig. 10A , Fig. 10B , Fig.11A , Fig. 11B and / or Fig.12 As described.

[0197] like Fig.14 As further shown, in some aspects, process 1400 may include: sending explicit multiple TRP information to the UE via layer 2 control signaling, the explicit multiple TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the multiple TRPs, wherein the explicit multiple TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP (block 1420). For example, the network node (e.g., using Fig.16 The communication manager 150 and / or the sending component 1604 depicted in the figure may send explicit multi-TRP information to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP, as described above, for example with reference to Fig. 9 , Fig. 10A , Fig. 10B , Fig.11A , Fig. 11B and / or Fig.12 As described.

[0198] Process 1400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0199] In a first aspect, the explicit multi-TRP information includes a bitmap identifying multiple cells.

[0200] In a second aspect, alone or in combination with the first aspect, the bitmap comprises a plurality of bits corresponding to the plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

[0201] In the third aspect, alone or in combination with one or more of the first and second aspects, the explicit multi-TRP information includes: a cell identifier part, which includes multiple cell identifiers, wherein one or more cell identifiers of the multiple cell identifiers respectively indicate one or more activated cells; a TRS part, which includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information part, which includes information associated with the primary cell.

[0202] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0203] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, the cell identifier part includes a bitmap, which includes multiple bits corresponding to the multiple cell identifiers respectively, and the main cell information part includes one or more bits indicating the cell identifier associated with the main cell and one or more other bits indicating the TRP index associated with the main TRP.

[0204] In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the cell identifier portion is included in four octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0205] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the explicit multi-TRP information also includes a TRP bitmap portion, which indicates a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

[0206] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the TRP bitmap portion includes a plurality of TRP bits corresponding to the plurality of TRPs, respectively, wherein a first state of a TRP bit among the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated.

[0207] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the explicit multi-TRP information includes: a joint bitmap portion, which includes joint bitmap information associated with multiple cell-TRP combinations; a TRS portion, which includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in one or more activated cells; and a primary cell information portion, which includes information associated with the primary cell.

[0208] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the joint bitmap information includes multiple joint bitmap bits corresponding to the multiple cell-TRP combinations, respectively, wherein a first state of a joint bitmap bit among the multiple joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

[0209] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0210] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0211] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in thirty-two octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the main cell information portion is included in a single octet.

[0212] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the joint bitmap information includes decoding information associated with the multiple cell-TRP combinations.

[0213] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in five octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the main cell information portion is included in a single octet.

[0214] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the explicit multi-TRP information includes: a TRP bitmap portion, the TRP bitmap portion including a plurality of TRP bits corresponding to the plurality of TRPs, respectively, wherein a first state of a TRP bit among the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion including cell row combination information associated with the one or more activated cells; a TRS portion, the TRS portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0215] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the explicit multi-TRP information also includes decoding information associated with the cell column combination information and the cell row combination information.

[0216] In the eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, the explicit multi-TRP information also includes a special cell configuration identifier, which is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0217] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0218] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the explicit multi-TRP information is associated with multiple octets, wherein the TRP bitmap portion is included in a single octet, the cell column portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, the cell row portion is included in several octets of the multiple octets corresponding to half of the several cells associated with the one or more activated cells, the TRS portion is included in several octets of the multiple octets corresponding to the several cells associated with the one or more activated cells, and the master cell information portion is included in another single octet.

[0219] In a twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, the explicit multi-TRP information further comprises a sending configuration indicator state identifier.

[0220] although Fig.14 Example blocks of process 1400 are shown, but in some aspects, process 1400 may include Fig.14 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1400 may be performed in parallel.

[0221] Fig.15 1 is a diagram of an example apparatus 1500 for wireless communication according to the present disclosure. Apparatus 1500 may be a UE, or a UE may include apparatus 1500. In some aspects, apparatus 1500 includes a receiving component 1502 and a transmitting component 1504, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1500 may communicate with another apparatus 1506 (such as a UE, a base station, or another wireless communication device) using receiving component 1502 and transmitting component 1504. As further shown, apparatus 1500 may include a communication manager 140. Communication manager 140 may include configuration component 1508, etc.

[0222] In some aspects, the apparatus 1500 may be configured to perform Figures 9 to 12 Additionally or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as Fig.13 The process 1300. In some aspects, Fig.15 The device 1500 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.15One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0223] The receiving component 1502 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1506. The receiving component 1502 may provide the received communications to one or more other components of the device 1500. In some aspects, the receiving component 1502 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to the one or more other components of the device 1500. In some aspects, the receiving component 1502 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.

[0224] Transmit component 1504 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1506. In some aspects, one or more other components of device 1500 may generate communications and may provide the generated communications to transmit component 1504 for transmission to device 1506. In some aspects, transmit component 1504 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1506. In some aspects, transmit component 1504 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 1504 can be co-located with the receive component 1502 in a transceiver.

[0225] The receiving component 1502 may receive, via layer 3 control signaling, from a first service cell a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP among the multiple TRPs. The receiving component 1502 may receive, via layer 2 control signaling, explicit multi-TRP information from the first service cell, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP. The receiving component 1502 and / or the sending component 1504 may communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters. The configuring component 1508 may be configured to receive configuration information for communicating the multi-TRP information.

[0226] Fig.15 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.15 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.15 Two or more components shown may be implemented in a single component, or Fig.15 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.15 The illustrated set of component(s) may be described as being executable by Fig.15 Another collection of components shown performs one or more functions.

[0227] Fig.16 1 is a diagram of an example apparatus 1600 for wireless communication according to the present disclosure. Apparatus 1600 may be a network node, or a network node may include apparatus 1600. In some aspects, apparatus 1600 includes a receiving component 1602 and a sending component 1604, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1600 may communicate with another apparatus 1606 (such as a UE, a base station, or another wireless communication device) using receiving component 1602 and sending component 1604. As further shown, apparatus 1600 may include a communication manager 150. Communication manager 150 may include configuration component 1608, etc.

[0228] In some aspects, the apparatus 1600 may be configured to perform Figures 9 to 12 Additionally or alternatively, the apparatus 1600 may be configured to perform one or more processes described herein, such as Fig.14 The process 1400. In some aspects, Fig.16The device 1600 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.16 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0229] The receiving component 1602 may receive communications from the device 1606, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1602 may provide the received communications to one or more other components of the device 1600. In some aspects, the receiving component 1602 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to the one or more other components of the device 1600. In some aspects, the receiving component 1602 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the described network nodes.

[0230] Transmit component 1604 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1606. In some aspects, one or more other components of device 1600 may generate communications and may provide the generated communications to transmit component 1604 for transmission to device 1606. In some aspects, transmit component 1604 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1606. In some aspects, transmit component 1604 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1604 can be co-located with the receive component 1602 in a transceiver.

[0231] The sending component 1604 may send, via layer 3 control signaling, to the UE a configuration indicating multiple TRPs and one or more parameters enabling activation or deactivation of a TRP in the multiple TRPs. The sending component 1604 may send, via layer 2 control signaling, explicit multi-TRP information to the UE, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP. The configuration component 1608 may be configured to send configuration information for communicating the multi-TRP information.

[0232] Fig.16 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.16 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.16 Two or more components shown may be implemented in a single component, or Fig.16 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.16 The illustrated set of component(s) may be described as being executable by Fig.16 Another collection of components shown performs one or more functions.

[0233] The following provides an overview of some aspects of the disclosure:

[0234] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, via layer 3 control signaling, from a first service cell an indication of a configuration of multiple transmit receive points (TRPs) and one or more parameters enabling activation or deactivation of a TRP among the multiple TRPs; receiving, via layer 2 control signaling, explicit multi-TRP information from the first service cell, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP; and communicating with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

[0235] Aspect 2: A method according to Aspect 1, wherein the explicit multi-TRP information includes a bitmap identifying multiple cells.

[0236] Aspect 3: The method according to aspect 2, wherein the bitmap comprises a plurality of bits corresponding to the plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

[0237] Aspect 4: A method according to any one of Aspects 1 to 3, wherein the explicit multi-TRP information includes: a cell identifier part, the cell identifier part includes multiple cell identifiers, wherein one or more cell identifiers of the multiple cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) part, the tracking reference signal (TRS) part includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information part, the primary cell information part includes information associated with the primary cell.

[0238] Aspect 5: A method according to Aspect 4, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0239] Aspect 6: A method according to Aspect 4, wherein the cell identifier part includes a bitmap, the bitmap includes multiple bits corresponding to the multiple cell identifiers respectively, and the main cell information part includes one or more bits indicating the cell identifier associated with the main cell and one or more other bits indicating the TRP index associated with the main TRP.

[0240] Aspect 7: A method according to Aspect 4, wherein the explicit multi-TRP information is associated with multiple octets, wherein the cell identifier portion is included in four octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0241] Aspect 8: A method according to Aspect 4, wherein the explicit multi-TRP information also includes a TRP bitmap portion, the TRP bitmap portion indicating a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

[0242] Aspect 9: A method according to Aspect 8, wherein the TRP bitmap portion includes a plurality of TRP bits corresponding to the plurality of TRPs respectively, wherein a first state of a TRP bit among the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated.

[0243] Aspect 10: A method according to any one of Aspects 1 to 9, wherein the explicit multi-TRP information includes: a joint bitmap portion, the joint bitmap portion including joint bitmap information associated with multiple cell-TRP combinations; a tracking reference signal (TRS) portion, the tracking reference signal (TRS) portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0244] Aspect 11: A method according to Aspect 10, wherein the joint bitmap information includes multiple joint bitmap bits corresponding to the multiple cell-TRP combinations respectively, wherein a first state of a joint bitmap bit among the multiple joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

[0245] Aspect 12: A method according to Aspect 10, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0246] Aspect 13: A method according to aspect 10, wherein the primary cell information part includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0247] Aspect 14: A method according to Aspect 10, wherein the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in thirty-two octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0248] Aspect 15: The method according to Aspect 10, wherein the joint bitmap information includes decoding information associated with the multiple cell-TRP combinations.

[0249] Aspect 16: A method according to Aspect 15, wherein the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in five octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0250] Aspect 17: A method according to any one of Aspects 1 to 6, wherein the explicit multi-TRP information includes: a TRP bitmap portion, the TRP bitmap portion including multiple TRP bits corresponding to the multiple TRPs, respectively, wherein a first state of a TRP bit in the multiple TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion including cell row combination information associated with the one or more activated cells; a tracking reference signal (TRS) portion, the tracking reference signal (TRS) portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in the one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0251] Aspect 18: The method according to Aspect 17, wherein the explicit multi-TRP information also includes decoding information associated with the cell column combination information and the cell row combination information.

[0252] Aspect 19: A method according to Aspect 17, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0253] Aspect 20: A method according to Aspect 17, wherein the primary cell information part includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0254] Aspect 21: A method according to Aspect 17, wherein the explicit multi-TRP information is associated with multiple octets, wherein the TRP bitmap portion is included in a single octet, the cell column portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, the cell row portion is included in several octets of the multiple octets corresponding to half of the several cells associated with the one or more activated cells, the TRS portion is included in several octets of the multiple octets corresponding to the several cells associated with the one or more activated cells, and the main cell information portion is included in another single octet.

[0255] Aspect 22: A method according to any one of Aspects 1 to 21, wherein the explicit multi-TRP information also includes a sending configuration indicator state identifier.

[0256] Aspect 23: A method of wireless communication performed by a network node, the method comprising: sending a configuration indicating multiple transmit reception points (TRPs) and one or more parameters enabling activation or deactivation of a TRP among the multiple TRPs to a user equipment (UE) via layer 3 control signaling; and sending explicit multi-TRP information to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as the primary TRP.

[0257] Aspect 24: A method according to Aspect 23, wherein the explicit multi-TRP information includes a bitmap identifying multiple cells.

[0258] Aspect 25: A method according to aspect 24, wherein the bitmap comprises a plurality of bits corresponding to the plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

[0259] Aspect 26: A method according to any one of Aspects 23 to 25, wherein the explicit multi-TRP information includes: a cell identifier part, the cell identifier part includes multiple cell identifiers, wherein one or more cell identifiers of the multiple cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) part, the tracking reference signal (TRS) part includes one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell among the one or more activated cells; and a primary cell information part, the primary cell information part includes information associated with the primary cell.

[0260] Aspect 27: A method according to Aspect 26, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0261] Aspect 28: A method according to Aspect 26, wherein the cell identifier part includes a bitmap, the bitmap includes multiple bits corresponding to the multiple cell identifiers respectively, and the main cell information part includes one or more bits indicating the cell identifier associated with the main cell and one or more other bits indicating the TRP index associated with the main TRP.

[0262] Aspect 29: A method according to Aspect 26, wherein the explicit multi-TRP information is associated with multiple octets, wherein the cell identifier portion is included in four octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0263] Aspect 30: A method according to Aspect 26, wherein the explicit multi-TRP information also includes a TRP bitmap portion, the TRP bitmap portion indicating a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

[0264] Aspect 31: A method according to Aspect 30, wherein the TRP bitmap portion includes multiple TRP bits corresponding to the multiple TRPs respectively, wherein a first state of a TRP bit among the multiple TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated.

[0265] Aspect 32: A method according to any one of Aspects 23 to 31, wherein the explicit multi-TRP information includes: a joint bitmap portion, the joint bitmap portion including joint bitmap information associated with multiple cell-TRP combinations; a tracking reference signal (TRS) portion, the tracking reference signal (TRS) portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0266] Aspect 33: A method according to Aspect 32, wherein the joint bitmap information includes multiple joint bitmap bits corresponding to the multiple cell-TRP combinations respectively, wherein a first state of a joint bitmap bit among the multiple joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

[0267] Aspect 34: A method according to Aspect 32, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0268] Aspect 35: A method according to Aspect 32, wherein the primary cell information part includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0269] Aspect 36: A method according to Aspect 32, wherein the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in thirty-two octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0270] Aspect 37: A method according to Aspect 32, wherein the joint bitmap information includes decoding information associated with the multiple cell-TRP combinations.

[0271] Aspect 38: A method according to Aspect 37, wherein the explicit multi-TRP information is associated with multiple octets, wherein the joint bitmap portion is included in five octets of the multiple octets, the TRS portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, and the primary cell information portion is included in a single octet.

[0272] Aspect 39: A method according to any one of Aspects 23 to 37, wherein the explicit multi-TRP information includes: a TRP bitmap portion, the TRP bitmap portion including a plurality of TRP bits corresponding to the plurality of TRPs, respectively, wherein a first state of a TRP bit in the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion including cell row combination information associated with the one or more activated cells; a tracking reference signal (TRS) portion, the tracking reference signal (TRS) portion including one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell in the one or more activated cells; and a primary cell information portion, the primary cell information portion including information associated with the primary cell.

[0273] Aspect 40: A method according to Aspect 39, wherein the explicit multi-TRP information also includes decoding information associated with the cell column combination information and the cell row combination information.

[0274] Aspect 41: A method according to Aspect 39, wherein the explicit multi-TRP information also includes a special cell configuration identifier, and the special cell configuration identifier is at least partially based on a special cell associated with the special cell configuration identifier that has been previously deactivated.

[0275] Aspect 42: A method according to Aspect 39, wherein the primary cell information part includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

[0276] Aspect 43: A method according to Aspect 39, wherein the explicit multi-TRP information is associated with multiple octets, wherein the TRP bitmap portion is included in a single octet, the cell column portion is included in several octets of the multiple octets corresponding to several cells associated with the one or more activated cells, the cell row portion is included in several octets of the multiple octets corresponding to half of the several cells associated with the one or more activated cells, the TRS portion is included in several octets of the multiple octets corresponding to the several cells associated with the one or more activated cells, and the main cell information portion is included in another single octet.

[0277] Aspect 44: A method according to any one of Aspects 23 to 43, wherein the explicit multi-TRP information also includes a sending configuration indicator state identifier.

[0278] Aspect 45: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 22.

[0279] Aspect 46: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 22.

[0280] Aspect 47: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 1 to 22.

[0281] Aspect 48: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 22.

[0282] Aspect 49: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 22.

[0283] Aspect 50: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 23 to 44.

[0284] Aspect 51: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 23 to 44.

[0285] Aspect 52: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 23 to 44.

[0286] Aspect 53: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 23 to 44.

[0287] Aspect 54: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 23 to 44.

[0288] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0289] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0290] Although the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (it includes a single member). As an 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, and any combination with multiple identical elements (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).

[0291] Any element, action or instruction used herein should not be interpreted as key or necessary, unless explicitly described as such. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected with the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If only want to refer to a project, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element with" A can also have B). In addition, the phrase "based on" is intended to represent "based at least in part", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: Memory; and one or more processors coupled to the memory and configured to: receiving, from a first serving cell via layer 3 control signaling, a configuration indicating a plurality of transmit reception points (TRPs) and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs; receiving explicit multi-TRP information from the first serving cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the plurality of TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP; as well as Communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

2. An apparatus according to claim 1, wherein the explicit multi-TRP information comprises a bitmap, the bitmap comprising a plurality of bits corresponding to a plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

3. The apparatus of claim 1, wherein the explicit multi-TRP information comprises: a cell identifier portion, the cell identifier portion comprising a plurality of cell identifiers, wherein one or more cell identifiers of the plurality of cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

4. The apparatus of claim 3, wherein the explicit multi-TRP information further comprises a special cell configuration identifier, the special cell configuration identifier being based at least in part on a special cell associated with the special cell configuration identifier that has previously been deactivated.

5. The apparatus according to claim 3, wherein the cell identifier portion includes a bitmap, the bitmap including a plurality of bits corresponding to the plurality of cell identifiers respectively, and the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

6. The apparatus according to claim 3, wherein the explicit multi-TRP information further comprises a TRP bitmap portion, wherein the TRP bitmap portion indicates a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

7. The apparatus of claim 1, wherein the explicit multi-TRP information comprises: a joint bitmap portion, the joint bitmap portion comprising joint bitmap information associated with a plurality of cell-TRP combinations; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

8. The apparatus according to claim 7, wherein the joint bitmap information comprises a plurality of joint bitmap bits respectively corresponding to the plurality of cell-TRP combinations, wherein a first state of a joint bitmap bit among the plurality of joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

9. The apparatus of claim 7, wherein the explicit multi-TRP information further comprises a special cell configuration identifier, the special cell configuration identifier being based at least in part on a special cell associated with the special cell configuration identifier that has previously been deactivated.

10. The apparatus of claim 7, wherein the primary cell information portion comprises one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

11. The apparatus of claim 7, wherein the joint bitmap information comprises decoding information associated with the plurality of cell-TRP combinations.

12. The apparatus of claim 1, wherein the explicit multi-TRP information comprises: A TRP bitmap portion includes a TRP bitmap portion corresponding to the plurality of a plurality of TRP bits of a TRP, wherein a first state of a TRP bit of the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion comprising cell row combination information associated with the one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

13. The apparatus of claim 12, wherein the explicit multi-TRP information further comprises decoding information associated with the cell column combination information and the cell row combination information.

14. The apparatus of claim 12, wherein the explicit multi-TRP information further comprises a special cell configuration identifier, the special cell configuration identifier being based at least in part on a special cell associated with the special cell configuration identifier that has previously been deactivated.

15. The apparatus of claim 12, wherein the primary cell information portion comprises one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

16. The apparatus of claim 1, wherein the explicit multi-TRP information further comprises a send configuration indicator state identifier.

17. An apparatus for wireless communication at a network node, the apparatus comprising: Memory; and one or more processors coupled to the memory and configured to: sending, via layer 3 control signaling, to a user equipment (UE) a configuration indicating a plurality of transmit reception points (TRPs) and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs; as well as Explicit multi-TRP information is sent to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP.

18. An apparatus according to claim 17, wherein the explicit multi-TRP information comprises a bitmap, the bitmap comprising a plurality of bits corresponding to a plurality of cells respectively, wherein a first state of a bit in the plurality of bits indicates that the corresponding cell is activated and a second state of the bit indicates that the corresponding cell is deactivated.

19. The apparatus of claim 17, wherein the explicit multi-TRP information comprises: a cell identifier portion, the cell identifier portion comprising a plurality of cell identifiers, wherein one or more cell identifiers of the plurality of cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

20. An apparatus according to claim 19, wherein the cell identifier portion includes a bitmap, the bitmap includes multiple bits corresponding to the multiple cell identifiers respectively, and the primary cell information portion includes one or more bits indicating a cell identifier associated with the primary cell and one or more other bits indicating a TRP index associated with the primary TRP.

21. The apparatus of claim 19, wherein the explicit multi-TRP information further comprises a TRP bitmap portion, the TRP bitmap portion indicating a set of TRPs associated with the primary cell from the multiple TRPs, wherein the set of TRPs includes the primary TRP.

22. The apparatus of claim 17, wherein the explicit multi-TRP information comprises: a joint bitmap portion, the joint bitmap portion comprising joint bitmap information associated with a plurality of cell-TRP combinations; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

23. The apparatus according to claim 22, wherein the joint bitmap information comprises a plurality of joint bitmap bits respectively corresponding to the plurality of cell-TRP combinations, wherein a first state of a joint bitmap bit among the plurality of joint bitmap bits indicates that the corresponding cell-TRP combination is activated, and a second state of the joint bitmap bit indicates that the corresponding cell-TRP combination is deactivated.

24. The apparatus of claim 22, wherein the joint bitmap information comprises coding information associated with the plurality of cell-TRP combinations.

25. The apparatus of claim 17, wherein the explicit multi-TRP information comprises: A TRP bitmap portion includes a TRP bitmap portion corresponding to the plurality of a plurality of TRP bits of a TRP, wherein a first state of a TRP bit of the plurality of TRP bits indicates that the corresponding TRP is activated and a second state of the TRP bit indicates that the corresponding TRP is deactivated; a cell column portion, the cell column portion including cell column combination information associated with one or more activated cells; a cell row portion, the cell row portion comprising cell row combination information associated with the one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

26. An apparatus according to claim 25, wherein the explicit multi-TRP information also includes decoding information associated with the cell column combination information and the cell row combination information.

27. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, from a first serving cell via layer 3 control signaling, a configuration indicating a plurality of transmit reception points (TRPs) and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs; receiving explicit multi-TRP information from the first serving cell via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second serving cell and a TRP associated with the second serving cell from the plurality of TRPs, wherein the explicit multi-TRP information indicates that the second serving cell is to be activated as a primary cell and the TRP associated with the second serving cell is to be activated as a primary TRP; as well as Communicate with the primary cell and the primary TRP based at least in part on the explicit multi-TRP information and the one or more parameters.

28. The method of claim 27, wherein the explicit multi-TRP information comprises: a cell identifier portion, the cell identifier portion comprising a plurality of cell identifiers, wherein one or more cell identifiers of the plurality of cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

29. A method of wireless communication performed by a network node, the method comprising: sending, via layer 3 control signaling, to a user equipment (UE) a configuration indicating a plurality of transmit reception points (TRPs) and one or more parameters enabling activation or deactivation of a TRP in the plurality of TRPs; as well as Explicit multi-TRP information is sent to the UE via layer 2 control signaling, the explicit multi-TRP information indicating activation of a second service cell and a TRP associated with the second service cell from the multiple TRPs, wherein the explicit multi-TRP information indicates that the second service cell will be activated as a primary cell and the TRP associated with the second service cell will be activated as a primary TRP.

30. The method of claim 29, wherein the explicit multi-TRP information comprises: a cell identifier portion, the cell identifier portion comprising a plurality of cell identifiers, wherein one or more cell identifiers of the plurality of cell identifiers respectively indicate one or more activated cells; a tracking reference signal (TRS) portion comprising one or more TRS identifiers, wherein each of the one or more TRS identifiers is associated with an activated cell of the one or more activated cells; and A primary cell information part, wherein the primary cell information part includes information associated with the primary cell.

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