Techniques for transmit-receive point switching during repetition

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive an indication to switch from multiple transmit receive point (multi-TRP) communications using multiple transmit configuration indicator (TCI) states to single TRP communications using a single TCI state, or from single TRP communications using the single TCI state to multi-TRP communications using the multiple TCI states. The indication may indicate a time for handover between repetitions of a plurality of repetitions of the communication. The UE may communicate using the single TCI state or the plurality of TCI states based at least in part on an initial repetition for a mode of TCI state-to-repetition mapping according to the indication. Numerous other aspects are described.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for transmit receive point (TRP) switching during repetitions. Background Art

[0002] 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).

[0003] 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.).

[0004] These 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, or global level. New Radio (NR), which may also 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 using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) on the uplink, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. Summary of the invention

[0005] Some aspects described herein relate to a method of wireless communication performed by a device of a user equipment (UE). The method may include receiving an indication of switching from a multi-transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to a single TRP communication using a single TCI state, or switching from a single TRP communication using a single TCI state to a multi-TRP communication using multiple TCI states. The indication may indicate a time for switching between repetitions in multiple repetitions of the communication. The method may include communicating using a single TCI state or multiple TCI states based at least in part on a starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0006] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a network node. The method may include sending an indication of switching from a multi-TRP communication using multiple TCI states to a single TRP communication using a single TCI state, or switching from a single TRP communication using a single TCI state to a multi-TRP communication using multiple TCI states. The indication may indicate a time for switching between repetitions in multiple repetitions of the communication. The method may include communicating based at least in part on a starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0007] Some aspects described herein relate to an apparatus for wireless communication at 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 an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The one or more processors may be configured to communicate using a single TCI state or multiple TCI states based at least in part on the starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0008] Some aspects described herein relate to an apparatus for wireless communication at a network node. The network node may include a memory and one or more processors, the one or more processors being coupled to the memory. The one or more processors may be configured to send an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The one or more processors may be configured to communicate based on the indication at least in part based on the starting repetition of a pattern for mapping TCI states to repetitions.

[0009] 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 an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The instruction set, when executed by one or more processors of the UE, may cause the UE to communicate using a single TCI state or multiple TCI states based at least in part on the starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0010] 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 an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The instruction set, when executed by one or more processors of the network node, may cause the network node to communicate based on the indication, at least in part, based on the starting repetition of a pattern for mapping TCI states to repetitions.

[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for receiving an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate a time for switching between repetitions in multiple repetitions of the communication. The apparatus may include a component for communicating using a single TCI state or multiple TCI states based at least in part on a starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for sending an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate a time for switching between repetitions in multiple repetitions of the communication. The apparatus may include components for communicating based at least in part on a starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0013] Aspects collectively 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 the drawings and description and as illustrated in the drawings and description.

[0014] The features and technical advantages of the 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. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and methods of operation) and the associated advantages will be better understood according to the following description. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 illustrate only 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.

[0016] Figure 1 is a diagram illustrating an example of a wireless network.

[0017] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network.

[0018] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0019] Figure 4 An example logical architecture of a distributed radio access network (RAN) according to the present disclosure is illustrated.

[0020] Figure 5 It is a diagram illustrating an example of multi-transmission-reception point (multi-TRP) communication according to the present disclosure.

[0021] Figure 6 is a diagram illustrating an example of multi-TRP operation according to the present disclosure.

[0022] Figure 7 is a diagram illustrating an example of transmission configuration indicator (TCI) state to repetition mapping according to the present disclosure.

[0023] Figure 8 is a diagram of an example associated with TRP switching during repetition according to the present disclosure.

[0024] Fig. 9 is a diagram of an example associated with TRP switching during repetition according to the present disclosure.

[0025] Fig.10 is a diagram of an example associated with TRP switching during repetition according to the present disclosure.

[0026] Fig.11 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0027] Fig.12 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.

[0028] Fig.13 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0029] Fig.14 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0030] 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 construed 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 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 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.

[0031] 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 may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0032] 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).

[0033] Figure 11 is a diagram illustrating an example of a wireless network 100. The wireless network 100 may be a 5G (e.g., NR) network or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network or elements of a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. 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), or other entities. The network node 110 is an example of a network node communicating with the UE 120. As shown, 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 RAN node (e.g., within a single device or unit). As another example, the network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated 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)).

[0034] 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. For example, the network node 110 may include 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.

[0035] 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 a coverage area of ​​the network node 110 or a 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, or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several thousand meters) 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 residence) 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).

[0036] 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 network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality 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 repeatedly perform 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 another base station function. In this way, a single device may include more than one base station.

[0037] The wireless network 100 may include one or more relay stations. A relay station is a network node that receives transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmits 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, 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 communications 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, or a relay, etc.

[0038] 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, or relay network nodes. These different types of network nodes 110 may have different transmit power levels, different coverage areas, or different effects 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).

[0039] 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.

[0040] 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, 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 device, 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, or a satellite radio), an in-vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, or any other suitable device configured to communicate via a wireless or wired medium.

[0041] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, or location tags, which 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, 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 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, or electrically coupled.

[0042] 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 also be referred to as a radio technology or air interface. Frequency may also be referred to as a carrier or frequency channel. 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.

[0043] 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), or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, or other operations described elsewhere herein as being performed by network node 110.

[0044] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, or channels by frequency or wavelength. For example, 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 range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. Similar naming issues sometimes occur with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0045] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics or FR2 characteristics, and thus the features of FR1 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.

[0046] With these examples in mind, unless otherwise specifically stated, if the term "sub-6 GHz" is used herein, it may broadly refer to frequencies that may be less than 6 GHz, frequencies that may be within FR1, or frequencies that may include mid-band frequencies. Additionally, unless otherwise specifically stated, if the term "millimeter wave" is used herein, it may broadly refer to frequencies that may include mid-band frequencies, frequencies that may be within FR2, FR4, FR4-a, FR4-1, or FR5, or frequencies that 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, or FR5) may be modified, and that the techniques described herein are applicable to those modified frequency ranges.

[0047] In some aspects, UE 120 may include communication manager 140. As described in more detail elsewhere herein, communication manager 140 may perform operations such as receiving an indication to switch from multiple TRP communications using multiple transmit configuration indicator (TCI) states to single TRP communications using a single TCI state, or switching from single TRP communications using a single TCI state to multiple TRP communications using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and communicating using the single TCI state or multiple TCI states based at least in part on a starting repetition of a pattern for TCI state to repetition mapping in accordance with the indication. Additionally or alternatively, communication manager 140 may perform one or more other operations described herein.

[0048] 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 operations such as sending an indication of switching from multiple multi-TRP communications using multiple TCI states to single TRP communications using a single TCI state, or switching from single TRP communications using a single TCI state to multiple TRP communications using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and communicating based at least in part on a starting repetition of a pattern for TCI state to repetition mapping in accordance with the indication. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0049] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0050] Figure 2 2 is a diagram illustrating an example 200 in which a network node 110 communicates with a UE 120 in a wireless network 100. 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.

[0051] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may use one or more channel quality indicators (CQIs) received from the UE 120 to select one or more modulation and coding schemes (MCSs) for the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 using the MCS selected for the UE 120 and may provide data symbols to the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, 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., pre-coding) on ​​data symbols, control symbols, overhead symbols, 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, or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0052] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 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, 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, 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.

[0053] 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.

[0054] One or more antennas (e.g., antennas 234a to 234t or antennas 252a to 252r) may include or may be included in one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc. An antenna panel, antenna group, set of antenna elements, or antenna array may include one or more antenna elements (in a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, or coupled to one or more transmit or receive components (such as Figure 2 One or more antenna elements of one or more components).

[0055] 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, 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, or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform aspects of any of the processes described herein (eg, with reference to Figures 8 to 14 ).

[0056] At the network node 110, uplink signals from the UE 120 or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232, shown as DEMOD), detected by the MIMO detector 236 where applicable, and further processed by the receive processor 238 to obtain decoded data and control information transmitted via the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide 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 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, or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the processes described herein (e.g., reference 200 to FIG. 1 ). Figures 8 to 14 ).

[0057] In some aspects, the controller / processor 280 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be communicated to other systems or components, such as the UE 120. For example, the processing system of the UE 120 may be a system that includes various other components or subcomponents of the UE 120.

[0058] The processing system of UE 120 may interface with one or more other components of UE 120, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of UE 120 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that UE 120 may receive information or signal input, and may pass information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that UE 120 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0059] In some aspects, controller / processor 240 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be passed to other systems or components, such as network node 110. For example, a processing system of network node 110 may be a system that includes various other components or subcomponents of network node 110.

[0060] The processing system of the network node 110 may interface with one or more other components of the network node 110, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of the network node 110 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that the network node 110 may receive information or signal input, and may pass information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that the network node 110 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0061] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or Figure 2 Any other component of the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or the like may perform one or more techniques associated with TRP switching during repetitions, as described in more detail elsewhere herein. Figure 2 Any other component (or combination of components) may perform or direct, for example Fig.11 Process 1100, Fig.12 1200 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 memory 282 may include non-transitory computer-readable media storing one or more instructions (e.g., code or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 110 or UE 120 (e.g., directly, or after compilation, conversion, or interpretation), may cause the one or more processors, UE 120, or network node 110 to perform or direct, for example, Fig.11 Process 1100, Fig.12 The process 1200 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0062] In some aspects, the UE 120 includes: a component for receiving an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and / or a component for communicating using a single TCI state or multiple TCI states based at least in part on a starting repetition of a pattern for TCI state to repetition mapping in accordance with the indication. The components for the UE 120 to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0063] In some aspects, the network node 110 includes: means for sending an indication of switching from multiple TRP communications using multiple TCI states to single TRP communications using a single TCI state or switching from single TRP communications using a single TCI state to multiple TRP communications using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and / or means for communicating based at least in part on a starting repetition of a pattern for TCI state-to-repetition mapping in accordance with the indication. Means for the network node 110 to perform 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.

[0064] 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.

[0065] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0066] 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 NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform 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).

[0067] 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.

[0068] 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.

[0069] 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-RTRIC 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.

[0070] 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, and the wireless interface being configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or to do both.

[0071] 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.

[0072] 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 medium access control (MAC) layer, and one or more high physical (PHY) layers, at least in part, according to a functional split (such as a functional split defined by 3GPP). In some aspects, the 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.

[0073] 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 control plane and user plane communications with 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).

[0074] 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.

[0075] 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.

[0076] 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 regulate 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).

[0077] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0078] Figure 4 An example logical architecture of a distributed RAN 400 according to the present disclosure is illustrated.

[0079] The 5G access node 405 may include an access node controller 410. The access node controller 410 may be a CU of the distributed RAN 400. In some aspects, a backhaul interface to the 5G core network 415 may terminate at the access node controller 410. The 5G core network 415 may include a 5G control plane component 420 and a 5G user plane component 425 (e.g., a 5G gateway), and a backhaul interface for one or both of the 5G control plane and the 5G user plane may terminate at the access node controller 410. Additionally or alternatively, a backhaul interface to one or more neighboring access nodes 430 (e.g., another 5G access node 405 and / or an LTE access node) may terminate at the access node controller 410.

[0080] The access node controller 410 may include one or more TRPs 435 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 435 may include a DU and / or RU of the distributed RAN 400. In some aspects, the TRP 435 may correspond to the above combined Figure 1 The network node 110 described herein may include a plurality of TRPs 435. For example, different TRPs 435 may be included in different network nodes 110. Additionally or alternatively, multiple TRPs 435 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 410) and / or one or more DUs (e.g., one or more TRPs 435). In some cases, a TRP 435 may be referred to as a cell, a panel, an antenna array, or an array.

[0081] The TRP 435 may be connected to a single access node controller 410 or multiple access node controllers 410. In some aspects, there may be a dynamic configuration of split logical functions within the architecture of the distributed RAN 400, 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 410 or the TRP 435.

[0082] In some aspects, multiple TRPs 435 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 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 435 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 435).

[0083] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0084] Figure 5 5 is a diagram illustrating an example 500 of multi-TRP communication (sometimes referred to as multi-panel communication) according to the present disclosure. Figure 5 As shown, multiple TRPs 505 can communicate with the same UE 120. TRP 505 can correspond to the above combined Figure 4 The TRP 435.

[0085] Multiple TRPs 505 (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. The TRPs 505 may coordinate such communications via an interface between the TRPs 505 (e.g., a backhaul interface and / or an access node controller 410). When the TRPs 505 are co-located at the same network node 110 (e.g., when the TRPs 505 are different antenna arrays or panels of the same network node 110), the interface may have less latency and / or higher capacity, and when the TRPs 505 are located at different network nodes 110, the interface may have greater latency and / or lower capacity (compared to co-location). Different TRPs 505 may communicate with the UE 120 using different QCL relationships (e.g., different TCI states), different demodulation reference signal (DMRS) ports, and / or different layers (e.g., different layers in a multi-layer communication).

[0086] 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 505 (e.g., TRP A and TRP B) may send communications to UE 120 on the same PDSCH. For example, communications may be sent using a single codeword with different spatial layers for different TRPs 505 (e.g., one of the codewords maps to a first set of layers sent by a first TRP 505 and maps to a second set of layers sent by a second TRP 505). As another example, communications may be sent using multiple codewords, with different codewords sent by different TRPs 505 (e.g., using different sets of layers). In either case, different TRPs 505 may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, the first TRP 505 may use a first QCL relationship or a first TCI state for a first DMRS port set corresponding to a first layer set, and the second TRP 505 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) DMRS port set corresponding to a second (different) layer set. 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. Generally speaking, in the 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).

[0087] 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 505, and the second PDCCH may schedule a second codeword to be sent by the second TRP 505. In addition, a first DCI (e.g., sent by the first TRP 505) may schedule a first PDSCH communication associated with a first DMRS port set having a first QCL relationship (e.g., indicated by a first TCI state) for use with the first TRP 505, and a second DCI (e.g., sent by the second TRP 505) may schedule a second PDSCH communication associated with a second DMRS port set having a second QCL relationship (e.g., indicated by a second TCI state) for use with the second TRP 505. 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 505. 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).

[0088] The TCI state may be associated with a beam. For example, the TCI state may indicate the directionality or characteristics of the beam, such as one or more QCL properties of the beam. The QCL properties may include, for example, Doppler shift, Doppler spread, average delay, delay spread, or spatial reception parameters, etc.

[0089] A unified TCI indication may indicate a common beam, which may refer to a beam used to send and / or receive multiple channels and / or reference signals. The unified TCI indication may be a first type (type 1) that uses a joint TCI state to indicate a common beam used for at least one downlink channel and / or downlink reference signal and at least one uplink channel and / or uplink reference signal. Type 1 unified TCI may be used for at least UE-specific PDCCH, PDSCH, physical uplink control channel (PUCCH) and / or physical uplink shared channel (PUSCH). The unified TCI indication may be a second type (type 2) that uses a separate downlink TCI state to indicate a common beam used for more than one downlink channel and / or downlink reference signal. Type 2 unified TCI may be used for at least UE-specific PDCCH and / or PDSCH. The unified TCI indication may be of a third type (type 3) that uses a separate uplink TCI state to indicate a common beam for more than one uplink channel and / or uplink reference signal. Type 3 unified TCI may be used for at least UE-specific PUCCH and / or PUSCH. In some examples, the unified TCI indication may indicate multiple downlink TCI states and / or multiple uplink TCI states for multi-TRP use. For example, the unified TCI indication may indicate a TCI code point mapped to multiple TCI states.

[0090] The unified TCI indication may be provided to the UE 120 in signaling from a network node (e.g., the first TRP 505 or the second TRP 505). For example, the unified TCI indication may be provided in a DCI and / or a MAC control element (MAC-CE). The application time for one or more beams indicated by the unified TCI indication may be counted from the end of the DCI / MAC-CE or from the end of the communication of confirmation feedback for the DCI / MAC-CE.

[0091] As indicated above, Figure 5 are provided as examples. Other examples can be found in relation to Figure 5 The examples described are different.

[0092] Figure 6 is a diagram illustrating an example of multi-TRP operation according to the present disclosure.

[0093] Examples 600, 605, 610, and 615 relate to multi-TRP PDSCH operations. In examples 600, 605, and 610, PDSCHs for multiple TRPs may be scheduled using a single DCI communication. In example 600, PDSCH resources 601 for a first TRP may be spatially multiplexed with PDSCH resources 602 for a second TRP. In example 605, PDSCH resources 606 for a first TRP may be frequency-division multiplexed with PDSCH resources 607 for a second TRP. In example 610, PDSCH resources 611 for a first TRP may be time-division multiplexed with PDSCH resources 612 for a second TRP. In example 615, PDSCHs for multiple TRPs may be scheduled using multiple DCI communications. As shown, DMRS symbols in a first time resource allocation 616 associated with a first TRP may be aligned in time with DMRS symbols in a second time resource allocation 617 associated with a second TRP.

[0094] Example 620 relates to multi-TRP DCI repetition. As shown, a first control resource set (CORESET) 621 associated with a first TRP may carry a first repetition 622 of the DCI, and a second CORESET 623 associated with a second TRP may carry a second repetition 624 of the DCI. As shown, the same aggregation level (shown as "ALx") may be used for the first repetition 622 and the second repetition 624 of the DCI. Example 625 relates to multi-TRP PUCCH or PUSCH repetition. As shown, the PUCCH or PUSCH resources 626 for the first TRP may be time-division multiplexed with the PUCCH or PUSCH resources 627 for the second TRP. In example 630, a single frequency network (SFN) may be used for PDCCH and / or PDSCH transmissions. As shown, the PDCCH or PDSCH resources 631 for the first TRP may occupy the same time and frequency as the PDCCH or PDSCH resources 632 for the second TRP.

[0095] As indicated above, Figure 6 are provided as examples. Other examples can be found in relation to Figure 6 The examples described are different.

[0096] Figure 7 is a diagram illustrating an example of TCI state to repetition mapping according to the present disclosure. Figure 7 As shown, multiple TRPs 705 can communicate with the same UE 120. TRP 705 can correspond to the above combined Figure 4 The TRP 435 and / or the above combination Figure 5 The TRP 505.

[0097] Multiple TRPs 705 (shown as TRP A and TRP B) can use multiple beams to communicate with UE 120. For example, a first TRP 705 (TRP A) can communicate with UE 120 using a first beam 710 corresponding to a first TCI state or QCL relationship, and a second TRP 705 (TRP B) can communicate with UE 120 using a second beam 715 corresponding to a second TCI state or QCL relationship. The repetition of the communication can be time division multiplexed and can alternate between using the first beam 710 and the second beam 715 according to the TCI to repetition mapping. In example 720, a round-robin mapping is used. According to the cyclic mapping, the first repetition 721 of the communication may use the first beam 710 associated with the first TRP 705, the second repetition 722 of the communication may use the second beam 715 associated with the second TRP 705, the third repetition 723 of the communication may use the first beam 710 associated with the first TRP 705, and the fourth repetition 724 of the communication may use the second beam 715 associated with the second TRP 705 (e.g., the cyclic mapping uses the ABAB pattern). In example 725, sequential mapping is used. According to the sequential mapping, the first repetition 726 of the communication may use the first beam 710 associated with the first TRP 705, the second repetition 727 of the communication may use the first beam 710 associated with the first TRP 705, the third repetition 728 of the communication may use the second beam 715 associated with the second TRP 705, and the fourth repetition 729 of the communication may use the second beam 715 associated with the second TRP 705 (e.g., the sequential mapping uses the AABB pattern).

[0098] When repetition is used, a transmitter (e.g., UE 120 or TRP 705) repeats the transmission of a communication multiple times. For example, a transmitter may send an initial communication, and may repeat the transmission of the communication (e.g., may retransmit) one or more times. In some examples, a repeated transmission (sometimes referred to as a retransmission) may include the same coded bits (e.g., information bits and parity bits) as the initial transmission and / or another repeated transmission (e.g., where the same redundancy version is used across repetitions). Alternatively, a repeated transmission may include different coded bits (e.g., information bits and / or parity bits) from the initial transmission and / or another repeated transmission (e.g., where different redundancy versions are used across repetitions). As used herein, the term "repetition" is used to refer to the initial communication and is also used to refer to the repeated transmission of the initial communication. For example, if UE 120 is configured to send four repetitions, UE 120 may send an initial transmission and may send three repetitions of the initial transmission. Therefore, each transmission (regardless of whether the transmission is an initial transmission or a retransmission) is counted as a repetition.

[0099] In some cases, UE 120 may receive an indication of using a single TCI state for single TRP communication. Then, UE 120 may receive an additional indication of using multiple TCI states for multi-TRP communication. The additional indication may indicate the application time for multiple TCI states within multiple repeated communication opportunities (e.g., transmission opportunities or reception opportunities) to be sent or received by UE 120. In some other cases, UE 120 may receive an indication of using multiple TCI states for multi-TRP communication. Then, UE 120 may receive an additional indication of using a single TCI state for single TRP communication. The additional indication may indicate the application time for a single TCI state within multiple repeated communication opportunities (e.g., transmission opportunities or reception opportunities) to be sent or received by UE 120. In both cases, there is ambiguity about when UE 120 will switch from using single TRP communication to using multiple TRP communication or from using multiple TRP communication to using single TRP communication, and ambiguity about the TCI state to repetitive mapping mode that UE 120 will use when switching. As a result, communication performance at UE 120 may be affected.

[0100] In some techniques and apparatus described herein, a starting repetition for a pattern of TCI state to repetition mapping may be used in conjunction with switching from using a single TRP communication to using multiple TRP communications or from using multiple TRP communications to using a single TRP communication. For example, a starting repetition may be used when an indication of switching from a single TCI state to multiple TCI states or from multiple TCI states to a single TCI state indicates a time for switching between repetitions in a plurality of repetitions. In some aspects, when the UE 120 is to switch from a single TRP communication (e.g., using a single TCI state) to multiple TRP communications (e.g., using multiple TCI states), the starting repetition may be the first repetition in the plurality of repetitions or the first repetition in the plurality of repetitions after the time for switching. In some aspects, when the UE 120 is to switch from multiple TRP communications (e.g., using multiple TCI states) to a single TRP communication (e.g., using a single TCI state), the starting repetition may be the first repetition in a plurality of subsequent repetitions or the first repetition in the plurality of repetitions after the time for switching. In this way, when switching between TRPs, UE 120 and one or more TRPs can communicate using start repetitions, thereby improving communication performance at UE 120.

[0101] As indicated above, Figure 7 are provided as examples. Other examples can be found in relation to Figure 7 The examples described are different.

[0102] Figure 8FIG. 8 is a diagram of an example associated with TRP switching during repetition according to the present disclosure. Figure 8 As shown, multiple TRPs (e.g., TRPs 435, 505, and / or 705) can communicate with a UE (e.g., UE 120). In some aspects, the UE and multiple TRPs can be part of a wireless network (e.g., wireless network 100).

[0103] As shown by reference numeral 805, the first TRP (and / or the second TRP) may send configuration information, and the UE may receive the configuration information. In some aspects, the UE may receive the configuration information via one or more of RRC signaling, one or more MAC CEs, and / or DCI, etc. In some aspects, the configuration information may include: an indication of one or more configuration parameters for selection by the UE (e.g., known to the UE and / or previously indicated by the first network node or another network device), and / or explicit configuration information for the UE to configure the UE, etc.

[0104] In some aspects, the configuration information may indicate a configuration for the PDSCH, PUSCH, and / or PUCCH. In some aspects, the configuration information may configure repetitions for the PDSCH, PUSCH, and / or PUCCH. The repetition may be an inter-slot repetition, which may refer to a repetition of a communication conveyed in a corresponding time slot. In some aspects, the configuration information may indicate a type of mapping for the repetition, such as a cyclic mapping or a sequential mapping. In some aspects, the configuration information may indicate (e.g., in conjunction with repetitions) a semi-persistent scheduling (SPS) configuration for the PDSCH, a configured grant configuration for the PUSCH, and / or a periodic channel status report configuration for the PUCCH.

[0105] The UE may configure itself based at least in part on the configuration information. In some aspects, the UE may be configured to perform one or more operations described herein based at least in part on the configuration information. As shown in reference numeral 810, the UE may send a capability report, and the first TRP (and / or the second TRP) may receive the capability report. In some aspects, the capability report may indicate that the UE supports multi-TRP communication.

[0106] As shown by reference numeral 815, the UE may receive an indication to communicate using one or more TCI states, and the first TRP (and / or the second TRP) may send the indication. The indication may indicate that the UE will use the TCI state to communicate until the UE receives another indication (e.g., the TCI state applies to the current allocation as well as future allocations). In some aspects, the indication may indicate that the UE will communicate using a single TCI state for single-TRP communication (e.g., using a single beam). In some aspects, the indication may indicate that the UE will communicate using multiple TCI states for multi-TRP communication (e.g., using multiple beams). The indication may be in the DCI and / or MAC-CE. In some aspects, the indication may be a unified TCI indication (e.g., it may indicate a TCI code point mapped to a single TCI state or multiple TCI states).

[0107] As shown by reference numeral 820, the UE may communicate using the indicated TCI state (e.g., using a beam associated with the indicated TCI state) for multiple repetitions of communication (e.g., according to configuration information). For example, if a single TCI state is indicated, the UE may communicate with the first TRP using a single TCI state for multiple repetitions (e.g., inter-slot repetitions). That is, the UE may send or receive multiple repetitions, and the first TRP may receive or send the multiple repetitions. As another example, if multiple TCI states are indicated, the UE may communicate with the first TRP and the second TRP using multiple TCI states for multiple repetitions (e.g., using a corresponding TCI state for each TRP). That is, the UE may send or receive one or more repetitions in the repetition using the first TCI state, and the first TRP may receive or send one or more repetitions in the repetition using the first TCI state, and the UE may send or receive one or more repetitions in the repetition using the second TCI state, and the second TRP may receive or send one or more repetitions in the repetition using the second TCI state. Multiple TCI states may be mapped to repetitions using a round-robin mapping or a sequential mapping (eg, based on configuration information).

[0108] As shown by reference numeral 825, the UE may receive an indication to communicate using one or more TCI states, and the first TRP (and / or the second TRP) may send the indication. The indication may indicate that the UE will communicate using the TCI state until the UE receives another indication (e.g., the TCI state applies to the current allocation as well as future allocations). The indication may be in the DCI and / or MAC-CE. In some aspects, the indication may be a unified TCI indication (e.g., it may indicate TCI code points mapped to a single TCI state or multiple TCI states).

[0109] In some aspects, the indication may indicate that the UE is to switch from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. That is, if the indication shown at reference numeral 815 indicates that the UE is to communicate using a single TCI state (e.g., for single TRP communication), the indication shown at reference numeral 825 may indicate that the UE is to communicate using multiple TCI states (e.g., for multi-TRP communication). In some aspects, the indication may indicate that the UE is to switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state. That is, if the indication shown at reference numeral 815 indicates that the UE is to communicate using multiple TCI states (e.g., for multi-TRP communication), the indication shown at reference numeral 825 may indicate that the UE is to communicate using a single TCI state (e.g., for single TRP communication).

[0110] In some aspects, the indication may indicate a time for applying the indicated TCI state (which time may be referred to as an "application time" for the TCI state). That is, the indication may indicate a time for switching. The time for switching may be during multiple repetitions. For example, the time for switching may be between repetitions in multiple repetitions (e.g., after the end of the repetition or during the transmission or reception of the repetition). As an example, the time for switching may be within a communication timing for multiple repetitions (e.g., a transmission timing for PUCCH or a reception timing for PDSCH or PUSCH). For example, the time for switching to a single TCI state may be in the middle of the UE sending or receiving multiple repetitions using multiple TCI states. As another example, the time for switching to multiple TCI states may be in the middle of the UE sending or receiving multiple repetitions using a single TCI state.

[0111] As shown at reference numeral 830, the UE may communicate based at least in part on a starting repetition of a pattern for TCI state to repetition mapping based on an indication (e.g., if the indication shown at reference numeral 825 indicates a single TCI state, the UE may communicate using a single TCI state (e.g., a single beam) or multiple TCI states (e.g., multiple beams), or if the indication shown at reference numeral 825 indicates multiple TCI states, the UE may communicate using multiple TCI states). The UE may apply the indicated TCI state after the indicated application time. However, the particular repetition at which the UE begins to use the indicated TCI state and / or the mapping pattern of the UE using the indicated TCI state may be based at least in part on a particular starting repetition. That is, when a switch from a single TCI state to multiple TCI states or from multiple TCI states to a single TCI state will occur, and the pattern of TCI state to repetition mapping to be used may be a function of the starting repetition.

[0112] In some aspects, if the UE is switching from a single TCI state to multiple TCI states, the starting repetition for the pattern may be the first repetition of the multiple repetitions (e.g., at the start of a communication opportunity). Thus, a pattern for cyclic mapping or sequential mapping may be counted from the first repetition of the multiple repetitions (e.g., the first repetition may be the repetition before the application time). In some aspects, if the UE is switching from a single TCI state to multiple TCI states, the starting repetition for the pattern may be the first repetition of the multiple repetitions after the application time. Thus, a pattern for cyclic mapping or sequential mapping may be counted from the first repetition after the application time. The foregoing examples are combined Fig. 9 supply.

[0113] In some aspects, if the UE is switching from multiple TCI states to a single TCI state, the starting repetition for the pattern may be the first repetition of multiple subsequent repetitions (e.g., inter-slot repetitions) of a communication (e.g., a communication different from the communication of the multiple repetitions). Thus, the UE may use multiple TCI states to complete the multiple repetitions, and the UE may begin using a single TCI state for the multiple subsequent repetitions. In some aspects, if the UE is switching from multiple TCI states to a single TCI state, the starting repetition for the pattern may be the first repetition of the multiple repetitions after the application time. Thus, the UE may switch from using multiple TCI states to using a single TCI state in the middle of the multiple repetitions. The foregoing examples in combination with Fig.10 supply.

[0114] In this way, the UE and the TRP can communicate based at least in part on the start repetitions, thereby improving communication performance at the UE 120.

[0115] As indicated above, Figure 8 are provided as examples. Other examples can be found in relation to Figure 8 The examples described are different.

[0116] Fig. 9 900 and 905 are diagrams of examples associated with TRP switching during repetition according to the present disclosure. Examples 900 and 905 may be combined with Figure 8 Examples of the techniques described.

[0117] In examples 900, 905, the UE may send or receive multiple repetitions 910 (shown as four inter-slot repetitions) of communications using a single TCI state (e.g., in a communication opportunity for multiple repetitions 910), and the first TRP (or second TRP) may receive or send communications using a single TCI state. The UE may receive an indication 915 that the UE will switch from using a single TCI state (e.g., a single beam) to using multiple TCI states (e.g., multiple beams), and the first TRP (and / or the second TRP) may send the indication. As shown, the UE may receive the indication 915 after the multiple repetitions 910, before the multiple repetitions 910, during the multiple repetitions 910, or the communications of the multiple repetitions 910 may be the indication. As described herein, the indication may indicate the application time for the multiple TCI states during the multiple repetitions 920 (shown as four inter-slot repetitions) of the communication (e.g., in the communication opportunity of the multiple repetitions 920). For example, the application time may be between repetitions in the multiple repetitions 920. The UE may then start sending or receiving multiple repetitions using a single TCI state 920 (e.g., before the application time for the multiple TCI states), and the first TRP (or the second TRP) may start receiving or sending multiple repetitions using a single TCI state.

[0118] In example 900, the starting repetition 925 for the pattern of TCI state to repetition mapping can be the first repetition in multiple repetitions 920 (e.g., at the beginning of a communication opportunity). As shown, a cyclic mapping of multiple TCI states (shown as TCI A and TCI B) can be used, thereby mapping repetitions according to a pattern of TCI A, TCI B, TCI A, TCI B, etc. However, example 900 is also applicable to sequential mapping. According to the cyclic mapping starting from the starting repetition 925, the first repetition in multiple repetitions 920 can be mapped to TCI A (e.g., even if the first repetition is before the application time and can be transmitted using a single TCI state), the second repetition in multiple repetitions 920 can be mapped to TCI B, the third repetition in multiple repetitions 920 can be mapped to TCIA, and the fourth repetition in multiple repetitions 920 can be mapped to TCI B. Therefore, the UE can send or receive the second repetition using TCI B, the third repetition using TCI A, and the fourth repetition using TCI B, and the first TRP and the second TRP can receive or send the second repetition using TCI B, the third repetition using TCI A, and the fourth repetition using TCI B.

[0119] In example 905, the starting repetition 935 of the pattern for TCI state to repetition mapping can be the first repetition in multiple repetitions 920 after the application time for multiple TCI states. As shown, a cyclic mapping of multiple TCI states (shown as TCI A and TCI B) can be used, thereby mapping repetitions according to the pattern of TCI A, TCI B, TCI A, TCI B, etc. However, example 905 is also applicable to sequential mapping. According to the cyclic mapping starting from the starting repetition 935, the first repetition in multiple repetitions 920 can be unmapped, the second repetition in multiple repetitions 920 can be mapped to TCI A, the third repetition in multiple repetitions 920 can be mapped to TCI B, and the fourth repetition in multiple repetitions 920 can be mapped to TCI A. Therefore, the UE can send or receive the second repetition using TCI A, the third repetition using TCI B, and the fourth repetition using TCI A, and the first TRP and the second TRP can receive or send the second repetition using TCI A, the third repetition using TCI B, and the fourth repetition using TCIA.

[0120] In examples 900, 905, for multiple subsequent repetitions 940 (shown as four inter-slot repetitions), the starting repetition for the TCI state to repetition mapping may be the first repetition in the multiple subsequent repetitions 940. Thus, the first repetition in the multiple subsequent repetitions 940 may be mapped to TCI A, the second repetition in the multiple subsequent repetitions 940 may be mapped to TCI B, the third repetition in the multiple subsequent repetitions 940 may be mapped to TCI A, and the fourth repetition in the multiple subsequent repetitions 940 may be mapped to TCI B.

[0121] As indicated above, Fig. 9 are provided as examples. Other examples can be found in relation to Fig. 9 The examples described are different.

[0122] Fig.10 1000 and 1005 are diagrams of examples associated with TRP switching during repetition according to the present disclosure. Examples 1000 and 1005 may be combined with Figure 8 Examples of the techniques described.

[0123] In examples 1000, 1005, a UE may send or receive multiple repetitions 1010 (shown as four inter-slot repetitions) of communications using multiple TCI states (e.g., in communication opportunities for multiple repetitions 1010), and a first TRP and a second TRP may receive or send communications using multiple TCI states. As shown, a cyclic mapping of multiple TCI states (shown as TCI A and TCI B) may be used, whereby repetitions are mapped according to a pattern of TCI A, TCI B, TCI A, TCI B, etc. However, examples 1000, 1005 are equally applicable to sequential mapping.

[0124] The UE may receive an indication 1015 that the UE will switch from using multiple TCI states (e.g., multiple beams) to using a single TCI state (e.g., a single beam), and the first TRP (and / or the second TRP) may send the indication. As shown, the UE may receive the indication 1015 after multiple repetitions 1010, before multiple repetitions 1010, during multiple repetitions 1010, or the communication of multiple repetitions 1010 may be the indication. As described herein, the indication may indicate the application time for a single TCI state during multiple repetitions 1020 (shown as four inter-slot repetitions) of the communication (e.g., in the communication opportunities of multiple repetitions 1020). For example, the application time may be between repetitions in the multiple repetitions 1020. The UE may then begin sending or receiving multiple repetitions 1020 using multiple TCI states in a manner similar to the multiple repetitions 1010 (e.g., before the application time for a single TCI state), and the first TRP and the second TRP may begin receiving or sending the multiple repetitions.

[0125] In example 1000, the starting repetition 1025 for the pattern of TCI state to repetition mapping can be the first repetition of multiple subsequent repetitions 1030 (e.g., at the beginning of the communication opportunity for multiple subsequent repetitions 1030, the multiple subsequent repetitions are shown as four inter-slot repetitions). For a single TCI state, the pattern for TCI state to repetition mapping can result in a single TCI state being mapped to each repetition. Therefore, after the application time of the single TCI state, the UE may continue to send or receive multiple repetitions 1020 (e.g., by continuing the cyclic mapping pattern), and the first TRP and the second TRP may continue to receive or send the multiple repetitions. Starting from the starting repetition 1025, the single TCI state may be mapped to multiple subsequent repetitions 1030. Therefore, the UE may use a single TCI state to send or receive multiple subsequent repetitions 1030, and the first TRP (or the second TRP) may receive or send the multiple subsequent repetitions.

[0126] In example 1005, the starting repetition 1035 of the pattern for TCI state to repetition mapping may be the first repetition after the application time for a single TCI state. With respect to a single TCI state, the pattern for TCI state to repetition mapping may result in a single TCI state being mapped to each repetition. Thus, starting with the starting repetition 1035, a single TCI state may be mapped to a repetition in the plurality of repetitions 1020. Then continuing, a single TCI state may be mapped to a plurality of subsequent repetitions 1030.

[0127] As indicated above, Fig.10 are provided as examples. Other examples can be found in relation to Fig.10 The examples described are different.

[0128] Fig.11 1 is a diagram illustrating an example process 1100 performed, for example, by a UE according to the present disclosure. The example process 1100 is an example in which a UE (eg, UE 120) performs operations associated with TRP switching during repetition.

[0129] like Fig.11 As shown, in some aspects, process 1100 may include receiving an indication to switch from multiple TRP communication using multiple TCI states to single TRP communication using a single TCI state, or to switch from single TRP communication using a single TCI state to multiple TRP communication using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication (block 1110). For example, a UE (e.g., using Fig.13 The depicted communication manager 140 and / or receiving component 1302) may receive an indication to switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication, as described above.

[0130] like Fig.11 As further shown, in some aspects, process 1100 may include communicating using a single TCI state or multiple TCI states based at least in part on a starting repetition of a pattern for TCI state to repetition mapping in accordance with the indication (block 1120). Fig.13 The depicted communication manager 140, receiving component 1302, and / or sending component 1304) can communicate using a single TCI state or multiple TCI states based at least in part on the indication of a starting repetition of a pattern for TCI state to repetition mapping, as described above.

[0131] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0132] In a first aspect, the plurality of repetitions are inter-slot repetitions.

[0133] In a second aspect, either alone or in combination with the first aspect, the indication is a switch from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states, and the starting repetition for the mode is the first repetition of the multiple repetitions.

[0134] In a third aspect, either alone or in combination with the first aspect, the indication is a switch from single TRP communication using a single TCI state to multiple TRP communication using multiple TCI states, and the starting repetition for the mode is the first repetition of the multiple repetitions after a certain time.

[0135] In a fourth aspect, either alone or in combination with the first aspect, the indication is a switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, and the starting repetition for the mode is the first repetition of multiple subsequent repetitions.

[0136] In a fifth aspect, either alone or in combination with the first aspect, the indication is a switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, and the starting repetition for the mode is the first repetition of the multiple repetitions after the time.

[0137] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the communication is for a physical downlink shared channel, a physical uplink shared channel, or a physical uplink control channel.

[0138] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the indication is a unified TCI indication in a DCI or a MAC-CE.

[0139] although Fig.11 Example blocks of process 1100 are shown, but in some aspects, process 1100 may include Fig.11 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 1100 may be performed in parallel.

[0140] Fig.12is a diagram illustrating an example process 1200 performed, for example, by a network node in accordance with the present disclosure. The example process 1200 is an example in which a network node (eg, network node 110) performs operations associated with TRP switching during repetition.

[0141] like Fig.12 As shown, in some aspects, process 1200 may include sending an indication of switching from multiple TRP communications using multiple TCI states to single TRP communications using a single TCI state, or switching from single TRP communications using a single TCI state to multiple TRP communications using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication (block 1210). For example, a network node (e.g., using Fig.14 The depicted communication manager 150 and / or sending component 1404) may send an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication, as described above.

[0142] like Fig.12 As further shown, in some aspects, process 1200 may include communicating based at least in part on the indication of a starting repetition of the pattern for the TCI state to repetition mapping (block 1220). Fig.14 The depicted communications manager 150, receiving component 1402, and / or sending component 1404) can communicate based on the indication at least in part on the start repetition of the pattern for the TCI state to repetition mapping, as described above.

[0143] Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0144] In a first aspect, the plurality of repetitions are inter-slot repetitions.

[0145] In a second aspect, either alone or in combination with the first aspect, the indication is a switch from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states, and the starting repetition for the mode is the first repetition of the multiple repetitions.

[0146] In a third aspect, either alone or in combination with the first aspect, the indication is a switch from single TRP communication using a single TCI state to multiple TRP communication using multiple TCI states, and the starting repetition for the mode is the first repetition of the multiple repetitions after a certain time.

[0147] In a fourth aspect, either alone or in combination with the first aspect, the indication is a switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, and the starting repetition for the mode is the first repetition of multiple subsequent repetitions.

[0148] In a fifth aspect, either alone or in combination with the first aspect, the indication is a switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, and the starting repetition for the mode is the first repetition of the multiple repetitions after the time.

[0149] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the communication is for a physical downlink shared channel, a physical uplink shared channel, or a physical uplink control channel.

[0150] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the indication is a unified TCI indication in a DCI or a MAC-CE.

[0151] although Fig.12 An example block diagram of process 1200 is shown, but in some aspects, process 1200 may include Fig.12 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 1200 may be performed in parallel.

[0152] Fig.13 1 is a diagram of an example apparatus 1300 for wireless communication according to the present disclosure. Apparatus 1300 may be a UE, or a UE may include apparatus 1300. In some aspects, apparatus 1300 includes a receiving component 1302 and a sending component 1304, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1300 may communicate with another apparatus 1306 (such as a UE, a base station, or another wireless communication apparatus) using receiving component 1302 and sending component 1304. As further shown, apparatus 1300 may include a communication manager 140. Communication manager 140 may include application component 1308, etc.

[0153] In some aspects, the apparatus 1300 may be configured to perform the Figures 8 to 10 Additionally or alternatively, the apparatus 1300 may be configured to perform one or more of the processes described herein (such as Fig.11 In some aspects, Fig.13The device 1300 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE. Additionally or alternatively, Fig.13 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set 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 codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0154] The receiving component 1302 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1306. The receiving component 1302 may provide the received communications to one or more other components of the device 1300. In some aspects, the receiving component 1302 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 1300. In some aspects, the receiving component 1302 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.

[0155] Transmit component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1306. In some aspects, one or more other components of device 1300 may generate communications and may provide the generated communications to transmit component 1304 for transmission to device 1306. In some aspects, transmit component 1304 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 1306. In some aspects, transmit component 1304 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the UE. In some aspects, the transmit component 1304 can be co-located with the receive component 1302 in a transceiver.

[0156] The receiving component 1302 may receive an indication to switch from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or to switch from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The applying component 1308 may apply (e.g., configure the device 1300 to use) a single TCI state or multiple TCI states based on the indication. The receiving component 1302 and / or the sending component 1304 may communicate using a single TCI state or multiple TCI states based at least in part on the starting repetition of the pattern for mapping TCI states to repetitions based on the indication.

[0157] Fig.13 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.13 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.13 Two or more components shown may be implemented in a single component, or Fig.13 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.13 The illustrated set of component(s) may be described as being executable by Fig.13 Another collection of components shown performs one or more functions.

[0158] Fig.14 1 is a diagram of an example apparatus 1400 for wireless communication according to the present disclosure. Apparatus 1400 may be a network node, or a network node may include apparatus 1400. In some aspects, apparatus 1400 includes a receiving component 1402 and a sending component 1404, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1400 may communicate with another apparatus 1406 (such as a UE, a base station, or another wireless communication device) using receiving component 1402 and sending component 1404. As further shown, apparatus 1400 may include a communication manager 150. Communication manager 150 may include application component 1408, etc.

[0159] In some aspects, the apparatus 1400 may be configured to perform the Figures 8 to 10 Additionally or alternatively, the apparatus 1400 may be configured to perform one or more of the processes described herein (such as Fig.12 In some aspects, Fig.14 The device 1400 and / or one or more components shown may include a combination of Figure 2One or more components of the network node. Additionally or alternatively, Fig.14 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set 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 codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0160] The receiving component 1402 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1406. The receiving component 1402 may provide the received communications to one or more other components of the device 1400. In some aspects, the receiving component 1402 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 1400. In some aspects, the receiving component 1402 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.

[0161] The transmitting component 1404 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1406. In some aspects, one or more other components of the device 1400 may generate communications and may provide the generated communications to the transmitting component 1404 for transmission to the device 1406. In some aspects, the transmitting component 1404 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 the device 1406. In some aspects, the transmitting component 1404 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1404 can be co-located with the receive component 1402 in a transceiver.

[0162] The sending component 1404 may send an indication of switching from multi-TRP communication using multiple TCI states to single TRP communication using a single TCI state, or switching from single TRP communication using a single TCI state to multi-TRP communication using multiple TCI states. The indication may indicate the time for switching between repetitions in multiple repetitions of the communication. The applying component 1408 may apply (e.g., configure the device 1400 to use) a single TCI state or multiple TCI states based on the indication. The receiving component 1402 and / or the sending component 1404 may communicate based on the indication at least in part based on the starting repetition of the pattern for mapping TCI states to repetitions.

[0163] Fig.14 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.14 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.14 Two or more components shown may be implemented in a single component, or Fig.14 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.14 The illustrated set of component(s) may be described as being executable by Fig.14 Another collection of components shown performs one or more functions.

[0164] The following provides an overview of some aspects of the disclosure:

[0165] Aspect 1: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving an indication of switching from a multi-transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to a single TRP communication using a single TCI state, or switching from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and communicating using the single TCI state or the multiple TCI states based at least in part on a starting repetition of a pattern for mapping TCI states to repetitions according to the indication.

[0166] Aspect 2: The method according to aspect 1, wherein the multiple repetitions are inter-slot repetitions.

[0167] Aspect 3: A method according to any one of Aspects 1 to 2, wherein the indication is a switch from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, and wherein the starting repetition for the pattern is the first repetition among the multiple repetitions.

[0168] Aspect 4: A method according to any one of Aspects 1 to 2, wherein the indication is a switch from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, and wherein the starting repetition for the pattern is the first repetition of the multiple repetitions after the time.

[0169] Aspect 5: A method according to any one of Aspects 1 to 2, wherein the indication is a switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and wherein the starting repetition for the pattern is the first repetition among multiple subsequent repetitions.

[0170] Aspect 6: A method according to any one of Aspects 1 to 2, wherein the indication is a switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and wherein the starting repetition for the pattern is the first repetition of the multiple repetitions after the time.

[0171] Aspect 7: The method according to any one of aspects 1 to 6, wherein the communication is used for a physical downlink shared channel, a physical uplink shared channel or a physical uplink control channel.

[0172] Aspect 8: The method according to any one of aspects 1 to 7, wherein the indication is a unified TCI indication in downlink control information or a medium access control control element (MAC-CE).

[0173] Aspect 9: A method of wireless communication performed by a device of a network node, the method comprising: sending an indication of switching from a multi-transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to a single TRP communication using a single TCI state, or switching from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, the indication indicating a time for switching between repetitions in multiple repetitions of the communication; and communicating based on the indication at least in part based on a start repetition of a pattern for mapping TCI states to repetitions.

[0174] Aspect 10: The method according to aspect 9, wherein the multiple repetitions are inter-slot repetitions.

[0175] Aspect 11: A method according to any one of Aspects 9 to 10, wherein the indication is a switch from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, and wherein the starting repetition for the pattern is the first repetition among the multiple repetitions.

[0176] Aspect 12: A method according to any one of Aspects 9 to 10, wherein the indication is a switch from a single TRP communication using the single TCI state to a multi-TRP communication using the multiple TCI states, and wherein the starting repetition for the pattern is the first repetition of the multiple repetitions after the time.

[0177] Aspect 13: A method according to any one of Aspects 9 to 10, wherein the indication is a switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and wherein the starting repetition for the pattern is the first repetition among multiple subsequent repetitions.

[0178] Aspect 14: A method according to any one of Aspects 9 to 10, wherein the indication is a switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and wherein the starting repetition for the pattern is the first repetition of the multiple repetitions after the time.

[0179] Aspect 15: A method according to any one of aspects 9 to 14, wherein the communication is used for a physical downlink shared channel, a physical uplink shared channel or a physical uplink control channel.

[0180] Aspect 16: The method according to any one of aspects 9 to 15, wherein the indication is a unified TCI indication in downlink control information or a medium access control control element (MAC-CE).

[0181] Aspect 17: 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 8.

[0182] Aspect 18: 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 8.

[0183] Aspect 19: 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 8.

[0184] Aspect 20: 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 8.

[0185] Aspect 21: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform one or more of the methods described in aspects 1 to 8.

[0186] Aspect 22: 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 9 to 16.

[0187] Aspect 23: 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 9 to 16.

[0188] Aspect 24: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 9 to 16.

[0189] Aspect 25: 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 9 to 16.

[0190] Aspect 26: 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 9 to 16.

[0191] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.

[0192] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, or a combination of hardware and software. As used herein, the phrase "based on" is intended to be broadly interpreted as "based at least in part on". As used herein, depending on the context, "satisfying a threshold" may refer to a value 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. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of these items (including 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.

[0193] 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 to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the term "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items), and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms will be used. Moreover, as used herein, the term "having" and similar terms are intended to be open terms that do not limit the elements (e.g., element "including" A can also contain B) that they modify. In addition, as used herein, the term "or" is intended to be inclusive when used in a sequence, and can be used interchangeably with "and / or", unless otherwise expressly stated (e.g., in the case of being used in combination with "any one of" or "only one of").

[0194] The various illustrative logics, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the various aspects disclosed herein may be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described in terms of functionality and is illustrated in the various illustrative components, blocks, modules, circuits, and processes described herein. Whether such functionality is implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0195] The hardware and data processing apparatus for implementing the various illustrative logics, logic blocks, modules and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using a general purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic component, a discrete hardware component or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, or any conventional processor, controller, microcontroller or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration. In some aspects, specific processes and methods may be performed by circuits dedicated to a given function.

[0196] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, including the structures disclosed in this specification and their structural equivalents, or any combination thereof. Aspects of the subject matter described in this specification may also be implemented as one or more computer programs (e.g., one or more modules of computer program instructions) encoded on computer storage media to be executed by a data processing apparatus or to control the operation of the data processing apparatus.

[0197] If implemented in software, the function may be stored as one or more instructions or codes on a computer-readable medium or sent via a computer-readable medium. The process of the method or algorithm disclosed herein may be implemented in a processor executable software module that may reside on a computer-readable medium. Computer-readable media include both computer storage media and communication media, and communication media include any medium that can realize the transfer of a computer program from one place to another. Storage media can be any available medium that a computer can access. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage devices, disk storage devices or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection may be appropriately referred to as a computer-readable medium. Disks and optical disks as used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks and blue-ray disks, wherein disks generally reproduce data magnetically, and optical disks reproduce data optically with lasers. The combination of media described herein should also be included in the scope of computer-readable media. Additionally, the operations of a method or algorithm may reside as a code and instruction set, or any combination of code and instruction sets, on a machine-readable medium or computer-readable medium, which may be incorporated into a computer program product.

[0198] Various modifications to the various aspects described in this disclosure may be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the spirit or scope of the disclosure. Therefore, the claims are not intended to be limited to the aspects shown herein, but should be granted the broadest scope consistent with the disclosure, the principles and novel features disclosed herein.

[0199] Additionally, one of ordinary skill in the art will readily recognize that the terms "upper" and "lower" are sometimes used for ease of describing the drawings and indicate relative positions corresponding to the orientation of the drawings on a correctly oriented page, and may not reflect the correct orientation of any device as implemented.

[0200] Certain features described in this specification in the context of independent aspects may also be implemented in combination in a single aspect. Conversely, various features described in the context of a single aspect may also be implemented in multiple aspects individually or in any suitable sub-combination. In addition, although features may be described as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination may be removed from the combination in some cases, and a claimed combination may be directed to a sub-combination, or a variation of a sub-combination.

[0201] Similarly, although the operations are depicted in a specific order in the figure, this should not be understood as requiring such operations to be performed in the specific order shown or in a sequential order, or to perform all the illustrated operations to achieve the desired result. In addition, the accompanying drawings can schematically depict one or more example processes in the form of a flow chart. However, other operations not depicted can be incorporated into the example processes schematically illustrated. For example, one or more additional operations can be performed before, after, at the same time, or between any operations in the illustrated operations. In some environments, multitasking and parallel processing are advantageous. In addition, the separation of various system components in the various aspects described should not be understood as requiring such separation in all aspects, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, other aspects also fall within the scope of the appended claims. In some cases, the actions recorded in the claims can be performed in different orders and still achieve the desired result.

Claims

1. A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving an indication of switching from multiple transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to single TRP communication using a single TCI state, or switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, The indication indicates a time for switching between repetitions in a plurality of repetitions of the communication; as well as Communicating using the single TCI state or the plurality of TCI states based at least in part on a starting repetition of a pattern for a TCI state to repetition mapping in accordance with the indication. The method of claim 1 , wherein the plurality of repetitions are inter-slot repetitions.

3. The method of claim 1, wherein the instruction is to switch from single TRP communication using the single TCI state to multi-TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is a first repetition of the plurality of repetitions.

4. The method of claim 1, wherein the indication is switching from single TRP communication using the single TCI state to multi-TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

5. The method of claim 1, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the initial repetition for the pattern is a first repetition among a plurality of subsequent repetitions.

6. The method of claim 1, wherein the instruction is to switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

7. The method of claim 1, wherein the communication is for a physical downlink shared channel, a physical uplink shared channel, or a physical uplink control channel.

8. The method of claim 1, wherein the indication is a unified TCI indication in downlink control information or a medium access control control element (MAC-CE).

9. A method of wireless communication performed by an apparatus of a network node, the method comprising: sending an indication of switching from multiple transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to single TRP communication using a single TCI state, or switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, The indication indicates a time for switching between repetitions in a plurality of repetitions of the communication; as well as Communicating according to the indication is based at least in part on a starting repetition of a pattern for a TCI state to repetition mapping.

10. The method of claim 9, wherein the plurality of repetitions are inter-slot repetitions.

11. The method of claim 9, wherein the instruction is to switch from single TRP communication using the single TCI state to multi-TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is a first repetition of the plurality of repetitions.

12. The method of claim 9, wherein the instruction is to switch from single TRP communication using the single TCI state to multi-TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

13. The method of claim 9, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the initial repetition for the pattern is a first repetition among a plurality of subsequent repetitions.

14. The method of claim 9, wherein the instruction is to switch from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

15. The method of claim 9, wherein the communication is for a physical downlink shared channel, a physical uplink shared channel, or a physical uplink control channel.

16. The method of claim 9, wherein the indication is a unified TCI indication in downlink control information or a medium access control element (MAC-CE).

17. 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 an indication of switching from multiple transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to single TRP communication using a single TCI state, or switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, The indication indicates a time for switching between repetitions in a plurality of repetitions of the communication; as well as Communicating using the single TCI state or the plurality of TCI states based at least in part on a starting repetition of a pattern for a TCI state to repetition mapping in accordance with the indication. The apparatus of claim 17 , wherein the plurality of repetitions are inter-slot repetitions.

19. The apparatus of claim 17, wherein the indication is switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is a first repetition of the plurality of repetitions.

20. The apparatus of claim 17, wherein the indication is switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

21. The apparatus of claim 17, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the initial repetition for the pattern is a first repetition among a plurality of subsequent repetitions.

22. The apparatus of claim 17, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

23. The apparatus of claim 17, wherein the indication is a unified TCI indication in downlink control information or a medium access control control element (MAC-CE).

24. 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 an indication of switching from multiple transmit receive point (multi-TRP) communication using multiple transmit configuration indicator (TCI) states to single TRP communication using a single TCI state, or switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, The indication indicates a time for switching between repetitions in a plurality of repetitions of the communication; as well as Communicating according to the indication is based at least in part on a starting repetition of a pattern for a TCI state to repetition mapping.

25. The apparatus of claim 24, wherein the plurality of repetitions are inter-slot repetitions.

26. The apparatus of claim 24, wherein the indication is switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is a first repetition of the plurality of repetitions.

27. The apparatus of claim 24, wherein the indication is switching from single TRP communication using the single TCI state to multiple TRP communication using the multiple TCI states, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

28. The apparatus of claim 24, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the initial repetition for the pattern is a first repetition among a plurality of subsequent repetitions.

29. The apparatus of claim 24, wherein the indication is switching from multi-TRP communication using the multiple TCI states to single TRP communication using the single TCI state, and Wherein the starting repetition for the pattern is the first repetition of the plurality of repetitions after the time.

30. The apparatus of claim 24, wherein the indication is a unified TCI indication in downlink control information or a medium access control control element (MAC-CE).

Images