Unified transmit configuration indication for multiple transmit receive point communications

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a Physical Downlink Control Channel (PDCCH) communication including triggered Downlink Control Information (DCI) associated with a Unified Transmit Configuration Indication (TCI) for Multi-Transmit Reception Point (mTRP) communication. The UE may receive an aperiodic channel state information reference signal (CSI-RS) associated with a set of aperiodic CSI-RS resources. The UE may compare a scheduling offset between a last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS to a scheduling offset threshold. The UE may select a default TCI state according to the scheduling offset not satisfying the scheduling offset threshold and according to one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS. Numerous other aspects are described.

Description

Technical Field

[0001] All aspects of this disclosure relate to wireless communication in general, and to techniques and apparatus for a unified transmission configuration instruction for multi-transmitter-receiver communication. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable 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 issued by the 3rd Generation Partnership Project (3GPP).

[0003] A wireless network may include one or more network nodes that support communication for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with network nodes via downlink and uplink communication. A "downlink" (or "DL") refers to the communication link from the network node to the UE, and an "uplink" (or "UL") refers to the communication link from the UE to the network node. Some wireless networks may support device-to-device communication, such as via local links (e.g., sidelinks (SL), wireless local area network (WLAN) links, and / or wireless personal area network (WPAN) links, etc.).

[0004] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different UEs to communicate at the city, country, region, and / or global levels. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband internet access by: improving spectrum efficiency; reducing costs; improving service; utilizing new spectrum; and better integrating with other open standards by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (CP-OFDM), and CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink; and supporting beamforming, Multiple-Input Multiple-Output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to increase. Summary of the Invention

[0005] In some specific implementations, a method of wireless communication performed by a user equipment (UE) includes: receiving physical downlink control channel (PDCCH) communication including triggering downlink control information (DCI) associated with a unified transmit configuration indication (TCI) for multi-transmit receive point (mTRP) communication based on a single DCI; receiving an aperiodic CSI-RS associated with an aperiodic channel state information (CSI) reference signal (S) (CSI-RS) resource set; comparing a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and selecting a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0006] In some specific implementations, a method of wireless communication performed by a UE includes: receiving a PDCCH communication that includes a triggering DCI associated with a unified TCI for mTRP communication based on multiple DCIs; receiving an aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; comparing a scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and selecting a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol used to receive the aperiodic CSI-RS.

[0007] In some specific implementations, an apparatus for wireless communication at a UE includes: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the UE to: receive PDCCH communication including a triggering DCI associated with a unified TCI for mTRP communication based on a single DCI; receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; compare a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on one or more TCI states indicated in the same symbols as those used to receive the aperiodic CSI-RS.

[0008] In some specific implementations, an apparatus for wireless communication at a UE includes: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the UE to: receive PDCCH communication including trigger DCI associated with a unified TCI for mTRP communication based on multiple DCI; receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; compare a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0009] In some implementations, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive a PDCCH communication that includes a triggering DCI associated with a unified TCI for mTRP communication based on a single DCI; receive an aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; compare a scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0010] In some implementations, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive a PDCCH communication that includes a triggering DCI associated with a unified TCI for mTRP communication based on multiple DCI; receive an aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; compare a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol used to receive the aperiodic CSI-RS.

[0011] In some specific implementations, an apparatus for wireless communication includes: components for receiving PDCCH communication that includes triggering DCI associated with a unified TCI for mTRP communication based on a single DCI; components for receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; components for comparing a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and components for selecting a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on one or more TCI states indicated in the same symbols as those used to receive the aperiodic CSI-RS.

[0012] In some specific implementations, an apparatus for wireless communication includes: components for receiving PDCCH communication that includes triggering DCI associated with a unified TCI for mTRP communication based on multiple DCI; components for receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; components for comparing a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and components for selecting a default TCI state based on whether the scheduling offset does not meet the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0013] The entirety of the terms includes 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 accompanying drawings and illustrated therein.

[0014] The features and technical advantages of the examples according to this disclosure have been summarized rather broadly above in order to better understand the detailed description below. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the drawings provided is for illustrative and descriptive purposes and not as a definition of limitation of the claims.

[0015] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0016] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly outlined above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered as limiting its scope, as other equally valid aspects are permissible in this description. The same reference numerals in different drawings may identify the same or similar elements.

[0017] Figure 1 This is a diagram illustrating an example of a wireless network according to the present disclosure.

[0018] Figure 2 This is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0019] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.

[0020] Figure 4 This is a diagram illustrating an example of multi-transmitter-receiver point (mTRP) communication according to this disclosure.

[0021] Figure 5 This is a diagram illustrating an example of resource allocation for mTRP communication according to this disclosure.

[0022] Figure 6This is a diagram illustrating an example of activation of the Transmission Configuration Indicator (TCI) status according to this disclosure.

[0023] Figure 7 This is a diagram illustrating an example of a unified TCI for mTRP communication based on a single downlink control information (DCI) according to this disclosure.

[0024] Figure 8 This is a diagram illustrating an example of a unified TCI for mTRP communication based on multiple DCIs according to this disclosure.

[0025] Figure 9 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.

[0026] Figure 10 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.

[0027] Figure 11 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0028] A Transmitting and Receiving Point (TRP) can be any device capable of transmitting and receiving data. For example, a TRP may include a set of geographically co-located antennas (e.g., an antenna array with one or more antenna elements) supporting data transmission and reception. Transmit Configuration Indication (TCI) states can indicate the directivity or characteristics of a downlink beam, such as one or more quasi-co-located (QCL) attributes of the downlink beam. In some cases, a network node can transmit, and a user equipment (UE) can receive, downlink control information (DCI) indicating one or more TCI states to be used by the UE. Subsequently, the network node can transmit, and the UE can receive, aperiodic Channel State Information (CSI) or Physical Downlink Shared Channel (PDSCH) communication based on the DCI indicating one or more TCI states. Aperiodic CSI can be transmitted using a single DCI communication or using multiple DCI communication in a multi-TRP (mTRP) communication network that includes multiple TRPs communicating with the UE.

[0029] In some cases, the UE may receive a TCI status indication and select a default beam for aperiodic CSI reception based on the TCI status indication. In other cases, the UE may receive a unified TCI status indication. A unified TCI can be a TCI that will be applied to multiple channels or signals using a joint or common beam. The unified TCI status indication can indicate multiple beams that can be used as the default beam for aperiodic CSI reception. However, the UE may not be configured with information that allows it to select which of the multiple beams will be applied as the default beam for aperiodic CSI reception. This may result in the UE being unable to receive aperiodic CSI from the network node, and / or may cause communication failures between the UE and the network node due to an incorrect default beam selection made by the UE.

[0030] Various aspects relate to wireless communication as a whole. Some aspects more specifically relate to a unified transmission configuration indication for mTRP communication. In some aspects, the UE may receive physical downlink control channel (PDCCH) communication that triggers DCI, associated with mTRP communication based on a single DCI and unified TCI. The UE may receive aperiodic CSI-RS associated with a set of aperiodic CSI reference signals (CSI-RS) resources. The UE may compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold, and may select a default TCI state based on the scheduling offset not being satisfied (e.g., less than) the scheduling offset threshold and based on one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS. In one example, if another downlink signal with an indicated joint or downlink TCI state exists in the same symbol as the aperiodic CSI-RS, the UE may apply the QCL attribute associated with that other downlink signal when receiving the aperiodic CSI-RS. In another example, if there exists a PDSCH that applies a combined or downlink TCI state indicating both to the same symbol as the CSI-RS, the UE can apply a single default beam or two default beams according to the UE configuration and the TCI indication. In some other aspects, the UE can receive PDCCH communications that include triggering DCI associated with mTRP communications based on unified TCI and multiple DCI. The UE can receive aperiodic CSI-RS associated with aperiodic CSI-RS resource sets. The UE can compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold, and can select a default TCI state based on whether the scheduling offset does not meet (e.g., is less than) the scheduling offset threshold and based on whether a combined TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbol used to receive the aperiodic CSI-RS. In some examples, if another downlink signal with an indicated joint or downlink TCI state exists in the same symbol as the aperiodic CSI-RS, the UE may apply the QCL attribute associated with that other downlink signal when receiving the aperiodic CSI-RS. In some other examples, if no other downlink signal with an indicated joint or downlink TCI state exists in the same symbol as the aperiodic CSI-RS, the UE may apply the joint or downlink TCI state based on the control resource set pool index and / or based on the UE capability information.

[0031] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. In some examples, by comparing the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold, the described techniques can be used to implement the selection of a default TCI state for aperiodic CSI-RS reception in unified TCI-based mTRP communication using a single DCI. Additionally or alternatively, by comparing the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold, the described techniques can be used to implement the selection of a default TCI state for aperiodic CSI-RS reception in unified TCI-based mTRP communication using multiple DCIs. In some examples, by selecting a default TCI state to be used for receiving aperiodic CSI-RS, the described techniques can be used to reduce the likelihood that a UE will be unable to receive aperiodic CSI-RS in a communication network using unified TCI mTRP communication. Additionally or alternatively, by selecting the default TCI state to be used for receiving aperiodic CSI-RS, the described techniques can be used to reduce the likelihood of communication failures in communication systems using unified TCI mTRP communication due to incorrect default beam selection made by the UE. These example advantages, etc., will be described in more detail below.

[0032] Various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of protection of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0033] Various devices and techniques will now be used to illustrate several aspects of a telecommunications system. These devices and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements can 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 system as a whole.

[0034] Although terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT) may be used herein to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or 5G and later (e.g., 6G) RATs.

[0035] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., LTE) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., LTE) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), one or more UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. For example, network node 110 can be an aggregated network node, meaning that an aggregated network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 is configured to utilize a protocol stack that is physically or logically distributed among 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)).

[0036] In some examples, network node 110 is a network node (such as RU) that communicates with UE 120 via a radio access link, or includes network nodes (such as RU) that communicate with the UE via a radio access link. In some examples, network node 110 is a network node (such as DU) that communicates with other network nodes 110 via a fronthaul or midhaul link, or includes network nodes (such as DU) that communicate with such other network nodes via a fronthaul or midhaul link. In some examples, network node 110 is a network node (such as CU) that communicates with other network nodes 110 via a midhaul link or with the core network via a backhaul link, or includes network nodes (such as CU) that communicate with such other network nodes via a midhaul link or with the core network via a backhaul link. In some examples, network node 110 (such as aggregated network node 110 or 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. Network node 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, TRPs, DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, network nodes 110 may interconnect with each other or with one or more other network nodes 110 in the wireless network 100 using any suitable transport network through various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks).

[0037] In some examples, network node 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), depending on the context of terminology use, the term "cell" may refer to the coverage area of ​​network node 110 and / or the network node subsystem serving that coverage area. Network node 110 may provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UE 120 with a service subscription. A picocell may cover a relatively small geographic area and may allow unrestricted access by UE 120 with a service subscription. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UE 120 associated with the femtocell (e.g., UE 120 in a Closed Subscriber Group (CSG)). Network node 110 used for macrocells may be referred to as a macro network node. Network node 110 used for picocells may be referred to as a pico network node. The network node 110 used for femtocells can be referred to as a femtocell network node or a home network node. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 102a, network node 110b can be a pico network node for pico cell 102b, and network node 110c can be a femto network node for femto cell 102c. Network nodes can support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographical area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).

[0038] 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, "base station" or "network node" may refer to a CU, DU, 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 multiple different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of that 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 can be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one base station function rather than another. In this way, a single device may include more than one base station.

[0039] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from upstream nodes (e.g., network node 110 or UE 120) and transmit data to downstream nodes (e.g., UE 120 or network node 110). A relay station may be a UE 120 that can relay transmissions to other UE 120s. Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. The network node 110 for relay communication may be referred to as a relay station, relay base station, relay network node, relay node, repeater, etc.

[0040] Wireless network 100 can be a heterogeneous network, comprising different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different effects on interference in wireless network 100. For example, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0041] Network controller 130 may be coupled to or communicate with a group of network nodes 110, and may provide coordination and control for these network nodes 110. Network controller 130 may communicate with network nodes 110 via a backhaul or midhaul link. Network nodes 110 may also communicate directly with each other, or indirectly via a wireless or wired backhaul link. In some aspects, network controller 130 may be a CU or a core network device, or may include a CU or a core network device.

[0042] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, a UE function of a network node, and / or any other suitable device configured to communicate via wireless or wired media.

[0043] Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with network nodes, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. UEs 120 may be housed within a housing containing components such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0044] Generally, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency in a given geographical area can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0045] 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 device to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols) and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0046] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency ranges FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is generally (interchangeably) referred to as the “sub-6GHz” band in various documents and articles. Similar naming issues sometimes occur with FR2, which is generally (interchangeably) referred to as the “millimeter wave” band in documents and articles, although this is different from the Extremely High Frequency (EHF) band (30GHz to 300GHz) designated as a “millimeter wave” band by the International Telecommunication Union (ITU).

[0047] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have identified the operating bands used for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz to 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as the frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0048] Considering the examples above, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" is used herein, it can broadly refer to frequencies below 6 GHz, within FR1, or including intermediate frequency bands. Furthermore, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" is used herein, it can broadly refer to frequencies that can include intermediate frequency bands, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band. Modifications to frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) are contemplated, and the techniques described herein are applicable to those modified frequency ranges.

[0049] In some aspects, UE 120 may include a communications manager 140. In some aspects, as described in more detail elsewhere herein, communications manager 140 may: receive PDCCH communications that include triggering DCIs associated with a unified TCI for mTRP communications based on a single DCI; receive aperiodic CSI-RSs associated with a set of aperiodic CSI-RS resources; compare a scheduling offset between the last symbol of the PDCCH communications and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on one or more TCI states indicated in the same symbols as those used to receive the aperiodic CSI-RS. In some other respects, as described in more detail elsewhere herein, the communication manager 140 may: receive PDCCH communications that include triggering DCI associated with a unified TCI for mTRP communications based on multiple DCIs; receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; compare a scheduling offset between the last symbol of the PDCCH communications and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol used to receive the aperiodic CSI-RS. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0050] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0051] Figure 2 This is a diagram illustrating example 200 of communication between network node 110 and UE 120 in a wireless network 100 according to this disclosure. Network node 110 may be equipped with a set of antennas 234a to 234t, such as... T One antenna ( T ≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R One antenna ( R ≥1). Network node 110 of Example 200 includes one or more radio frequency components, such as antenna 234 and modem 232. In some examples, network node 110 may include an interface, communication components, or another component that facilitates communication with UE 120 or another network node. Some network node 110 may not include radio frequency components that facilitate direct communication with UE 120, such as one or more CUs or one or more DUs.

[0052] At network node 110, transmitting processor 220 can receive data from data source 212 intended for use by UE 120 (or a group of UEs 120). Transmitting processor 220 can select one or more modulation and decoding schemes (MCS) for UE 120, at least in part, based on one or more Channel Quality Indicators (CQIs) received from UE 120. Network node 110 can process (e.g., encode and modulate) the data for UE 120, at least in part, based on the MCS selected for UE 120, and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmitting processor 220 can 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 signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can transmit a set of output symbol streams (e.g., T Each output symbol stream is provided to a corresponding set of modems 232 (e.g., ...). T Each modem 232a to 232t may be used to process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. For example, each output symbol stream may be provided to a modulator component (shown as MOD) of modem 232. Each modem 232 may use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 may also use a corresponding modulator component to process the output sample stream (e.g., convert to analog, amplify, filter, and / or up-convert) to obtain a downlink signal. Modems 232a to 232t may be used via a corresponding set of antennas 234 (e.g., T Each antenna (shown as antennas 234a to 234t) is used to transmit a set of downlink signals (e.g., ...). T (One downlink signal).

[0053] At UE 120, a set of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from network node 110 and / or other network nodes 110 and can transmit a set of received signals (e.g., R The received signals are provided to a group of modems 254 (e.g., RA modem 254 (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use a corresponding demodulator component to condition the received signal (e.g., filter, amplify, down-convert, and / or digitize) to obtain an input sample. Each modem 254 may use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 may obtain the received symbols from modem 254, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. Receiver processor 258 may process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to 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 can determine parameters such as the Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0054] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, for example, in a core network. Network controller 130 may communicate with network node 110 via communication unit 294.

[0055] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include one or more antenna panels, one or more antenna groups, one or more groups of antenna elements and / or one or more antenna arrays, etc., or may be included within one or more antenna panels, one or more antenna groups, one or more groups of antenna elements and / or one or more antenna arrays, etc. Antenna panels, antenna groups, groups of antenna elements and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements and / or coupled to one or more transmitting and / or receiving components (such as...). Figure 2 One or more antenna elements (one or more components in a )

[0056] On the uplink, at UE 120, the transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 can generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 can 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 transmitted to network node 110. In some examples, the modem 254 of UE 120 may include a modulator and demodulator. In some examples, UE 120 includes a transceiver. This transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to execute this document (e.g., reference). Figures 7 to 11 ( ) any aspect of the methods described in the method.

[0057] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232 (shown as DEMOD)), detected by MIMO detector 236, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Network node 110 may include communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of network node 110 may include modulator and demodulator. In some examples, network node 110 includes transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to execute this document (e.g., reference). Figures 7 to 11 ( ) any aspect of the methods described in the method.

[0058] The controller / processor 240 of network node 110, the controller / processor 280 of UE 120 and / or Figure 2Any other component may perform one or more techniques associated with a unified transmission configuration indication for multi-transmitter-receiver communication, as described in more detail elsewhere herein. For example, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component that can execute or direct, for example Figure 9 The process 900 Figure 10 The operation of process 1000 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, these one or more instructions may cause one or more processors, UE 120 and / or network node 110 to perform or direct, for example, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, transformation and / or interpretation). Figure 9 The process 900 Figure 10 The operation of process 1000 and / or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions and / or interpret instructions, etc.

[0059] In some aspects, UE 120 includes: components for receiving PDCCH communication that includes triggering DCI associated with TCI for mTRP communication based on a single DCI; components for receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; components for comparing a scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and / or components for selecting a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on one or more TCI states indicated in the same symbols as those used to receive the aperiodic CSI-RS. Components for UE 120 to perform the operations described herein may include, for example, one or more of the following: communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0060] In some aspects, UE 120 includes: components for receiving PDCCH communication that includes triggering DCI associated with a unified TCI for mTRP communication based on multiple DCI; components for receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set; components for comparing a scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and / or components for selecting a default TCI state based on whether the scheduling offset does not meet the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS. Components for UE 120 to perform the operations described herein may include, for example, one or more of the following: communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0061] In some respects, a single processor can perform all the functions described as being performed by that one or more processors. In other respects, the one or more processors can jointly perform a set of functions. For example, a first group(s) of the one or more processors can perform a first function described as being performed by that one or more processors, and a second group(s) of the one or more processors can perform a second function described as being performed by that one or more processors. The first group and the second group of processors may be the same group of processors or may be different groups of processors. The reference to "one or more processors" should be understood as referring to a combination of functions. Figure 2 Any one or more processors described. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in conjunction with... Figure 2 The memory described. For example, a function described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0062] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0063] As indicated above, Figure 2This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 2 The examples described are different.

[0064] The deployment of communication systems such as 5G NR systems can be arranged in a variety of ways using various components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in either a converged or decomposed architecture. For example, a base station (such as a Node B (NB), evolved NB (eNB), NR base station, 5G NB, access point (AP), TRP, or cell, etc.) or one or more units (or components) performing base station functionality can be implemented as a converged base station (also known as a standalone base station or monolithic base station) or a decomposed base station. A "network entity" or "network node" can 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 combinations thereof).

[0065] Aggregated base stations (e.g., aggregated network nodes) can 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 cell). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more cells (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the 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. DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual cell, such as a Virtual Central Unit (VCU), a Virtual Distributed Unit (VDU), or a Virtual Radio Unit (VRU), etc.

[0066] Base station type operation or network design can take into account the aggregation characteristics of base station functionality. For example, decomposed base stations can be utilized in IAB networks, Open Radio Access Networks (O-RAN (such as network configurations initiated by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)) to facilitate the scaling of communication systems by separating base station functionality into one or more units that can be deployed independently. Decomposed base stations can include functionality implemented by two or more units across various physical locations, as well as functionality virtually implemented for at least one unit, which enables flexibility in network design. The various units of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0067] Figure 3This is an illustration of an example disaggregated base station architecture 300 according to this disclosure. The disaggregated base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 via one or more disaggregated control units (such as near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a Service Management and Orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via a corresponding midhaul link (such as via an F1 interface). Each DU 330 may communicate with one or more RUs 340 via a corresponding fronthaul link. Each RU 340 may communicate with one or more UEs 120 via a corresponding radio frequency (RF) access link. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0068] Each of these units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO frame 305 may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via wired or wireless transmission media. Each of these units, or an associated processor or controller providing instructions to one or more communication interfaces of the respective unit, may be configured to communicate with one or more units in other units via transmission media. In some examples, each unit may include a wired interface and a wireless interface configured to receive signals via a wired transmission media or transmit signals to one or more units in other units, and the wireless interface may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive signals via a wireless transmission media or transmit signals to one or more units in other units, or both.

[0069] In some aspects, the CU 310 can host one or more higher-level 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 can be implemented using an interface configured to signal to other control functions hosted by the CU 310. The CU 310 can be configured to handle user plane functions (e.g., Central Unit-User Plane (CU-UP) functions), control plane functions (e.g., Central Unit-Control Plane (CU-CP) functions), or combinations thereof. In some implementations, the CU 310 can be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be implemented to communicate with the DU 330 for network control and signaling purposes, as needed.

[0070] Each DU 330 may correspond to a logical unit comprising one or more base station functions for controlling the operation of one or more RU 340s. In some aspects, the DU 330 may host one or more of the Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, and one or more high physical (PHY) layers, at least in part, according to functional splits (such as those 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, and modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as those implemented by 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 configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0071] Each RU 340 can implement lower-layer functionality. In some deployments, the RU 340 controlled by the DU 330 can correspond to a logical node that hosts RF processing functions or low-PHY layer functions, such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, based on function splitting (e.g., function splitting defined by 3GPP) (such as lower-layer function splitting). In such architectures, each RU 340 can be operated to handle over-the-air (OTA) communications with one or more UE 120s. In some specific implementations, the real-time and non-real-time aspects of communication with the control plane and user plane of the RU 340 can be controlled by the corresponding DU 330. In some scenarios, this configuration allows each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0072] The SMO framework 305 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 305 can be configured to interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (such as instantiating virtualized network elements) via cloud computing platform interfaces such as the 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-RTTRIC 325. In some specific implementations, the SMO framework 305 may communicate with the hardware aspects of the 4G RAN, such as the Open eNB (O-eNB) 311, via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0073] The non-RT RIC 315 can be configured to include logical functions that enable non-real-time control and optimization of RAN elements and resources, including AI / ML workflows for model training and updates, or policy-based guidance for applications / features in the near-RT RIC 325. The non-RT RIC 315 can be coupled to or communicate with the near-RT RIC 325, such as via an A1 interface. The near-RT RIC 325 can be configured to include logical functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as an E2 interface, through data collection and action, connecting one or more CU 310s, one or more DU 330s, or both, and O-eNBs to the near-RT RIC 325.

[0074] In some implementations, to generate AI / ML models 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. This information can be utilized by the near-RT RIC 325 and can be received from non-network data sources or network functions at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions via the SMO framework 305 (such as reconfiguration via the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0075] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.

[0076] Figure 4 This is a diagram illustrating example 400 of multi-TRP communication according to this disclosure.

[0077] A TRP can be any device capable of sending and receiving data. In one example, a TRP can be a set of geographically co-located antennas (e.g., an antenna array with one or more antenna elements) supporting data transmission and reception. In some cases, multiple TRPs 405 (such as TRP A and TRP B) can communicate with the same UE 120 in a coordinated manner (e.g., using coordinated multicast) to improve reliability and / or increase throughput. Such communication can be coordinated via an interface between TRPs 405 (e.g., a backhaul interface and / or an access node controller). When TRPs 405 are co-located at the same network node 110 (e.g., when TRPs 405 are different antenna arrays or panels of the same network node 110), the interface may have lower latency and / or higher capacity, and when TRPs 405 are located at different network nodes 110, the interface may have higher latency and / or lower capacity (compared to co-location). Different TRP 405s can communicate with 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 multi-layer communication).

[0078] In the first multi-TRP transmission mode (e.g., mode 1), a single PDCCH can be used to schedule downlink data communication for a single PDSCH. In this case, multiple TRPs 405 (e.g., TRP A and TRP B) can transmit communication to UE 120 on the same PDSCH. For example, a single codeword with different spatial layers for different TRPs 405 can be used to transmit communication (e.g., one codeword is mapped to a first set of layers transmitted by the first TRP 405 and to a second set of layers transmitted by the second TRP 405). Alternatively, multiple codewords can be used to transmit communication, where different codewords are transmitted by different TRPs 405 (e.g., using different sets of layers). In either case, different TRPs 405 can use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, a first TRP 405 may use a first QCL relationship or a first TCI state for a first group of DMRS ports corresponding to a first group layer, and a second TRP 405 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) group of DMRS ports corresponding to a second (different) group layer. In some aspects, the TCI state in the DCI (e.g., transmitted 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 the TCI field in the DCI. Generally, in this multi-TRP transmission mode (e.g., mode 1), the TCI field may indicate a single TCI state (for single TRP transmission) or multiple TCI states (for multi-TRP transmission as discussed herein).

[0079] In the second multi-TRP transmission mode (e.g., mode 2), multiple PDCCHs can be used to schedule downlink data communication for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH). In this case, the first PDCCH can be scheduled to transmit a first codeword by the first TRP 405, and the second PDCCH can be scheduled to transmit a second codeword by the second TRP 405. Furthermore, the first DCI (e.g., transmitted by the first TRP 405) can be scheduled to communicate with the first PDSCH associated with a first set of DMRS ports having a first QCL relationship (e.g., indicated by the first TCI state) for the first TRP 405, and the second DCI (e.g., transmitted by the second TRP 405) can be scheduled to communicate with the second PDSCH associated with a second set of DMRS ports having a second QCL relationship (e.g., indicated by the second TCI state) for the second TRP 405. In this case, (for example, a DCI with DCI format 1_0 or DCI format 1_1) can indicate the corresponding TCI state for TRP 405 corresponding to that DCI. The TCI field of the DCI indicates the corresponding TCI state (for example, 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).

[0080] In some cases, as indicated by reference numeral 410, TRP A may be associated with a TCI state or QCL, and as indicated by reference numeral 415, TRP B may be associated with a different TCI state or QCL. In a first example, communication between UE 120, TRP A, and TRP B may use Time Division Multiplexing (TDM) cyclic mapping. In this example, a first resource 420 may have a TCI state or QCL associated with TRP A, a second resource 425 may have a TCI state or QCL associated with TRP B, a third resource 430 may have a TCI state or QCL associated with TRP A, and a fourth resource 435 may have a TCI state or QCL associated with TRP B. In a second example, communication between UE 120, TRP A, and TRP B may use TDM sequence mapping. In this example, a first resource 440 and a second resource 445 may have a TCI state or QCL associated with TRP A, and a third resource 450 and a fourth resource 455 may have a TCI state or QCL associated with TRP B.

[0081] As indicated above, Figure 4 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 4 The examples described are different.

[0082] Figure 5This is a diagram illustrating an example of resource allocation for mTRP communication according to this disclosure. A first set of resources may be associated with a TCI state or QCL for a first TRP (such as TRP A), and a second set of resources may be associated with a TCI state or QCL for a second TRP (such as TRP B), for example, as described above. Figure 4 Described.

[0083] Example 500 illustrates various scenarios for a single DCI mTRP PDSCH communication (e.g., as described in Release 16 of the 3GPP standard). As shown by reference numeral 505, the first and second sets of resources can be transmitted using spatial division multiplexing (SDM). In this example, the first and second sets of resources can be transmitted from different physical locations. As shown by reference numeral 510, the first and second sets of resources can be transmitted using frequency division multiplexing (FDM). In this example, the first and second sets of resources can be transmitted simultaneously but using different frequency resources. As shown by reference numeral 515, the first and second sets of resources can be transmitted using TDM. In this example, the first and second sets of resources can be transmitted using the same frequency but at different times. As shown by reference numeral 520, the first set of resources may include a demodulation reference signal (DMRS) in the first and last resources of the first set of resources, while the second set of resources may include a DMRS in the first and seventh resources of the second set of resources, wherein the first resource of the first set of resources at least partially overlaps with the first resource of the second set of resources, and the last resource of the first set of resources at least partially overlaps with the seventh resource of the second set of resources.

[0084] Example 525 illustrates various scenarios of DCI repetition (e.g., as described in Release 17 of the 3GPP standard). As shown by reference numeral 530, a first set of resources (associated with a first control resource set (CORESET)) may be associated with a first aggregation level (ALx), and a second resource set (associated with a second CORESET) may be associated with the same aggregation level. As shown by reference numeral 535, the first and second sets of resources can be transmitted using TDM. This can be used, for example, in PUCCH / PUSCH repetition scenarios. As shown by reference numeral 540, the first and second sets of resources can be transmitted using a single-frequency network (SFN). This can be used, for example, in PUCCH and / or PUSCH communications.

[0085] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0086] Figure 6 This is a diagram illustrating example 600 activated according to the TCI state of this disclosure.

[0087] Network node 110 can transmit to UE 120 located within its coverage area. Network node 110 and UE 120 can be configured for beamforming communication, wherein network node 110 can transmit in the direction of UE 120 using a directional network node (NN) transmit beam (e.g., a base station (BS) transmit beam), and UE 120 can receive the transmission using a directional UE receive beam. Each NN transmit beam may have an associated beam ID, beam direction, or beam symbol, etc. Network node 110 can transmit downlink communication via one or more NN transmit beams 605.

[0088] UE 120 may attempt to receive downlink transmissions via one or more UE receive beams 610, which may be configured at the UE 120's receive circuitry using different beamforming parameters. UE 120 may identify specific NN transmit beams 605 (shown as NN transmit beam 605-A) and specific UE receive beams 610 (shown as UE receive beam 610-A) that provide relatively good performance (e.g., having optimal channel quality for different measured combinations of NN transmit beams 605 and UE receive beams 610). In some examples, UE 120 may send an indication of which NN transmit beam 605 UE 120 identifies as the preferred NN transmit beam, which network node 110 may select to transmit to UE 120. Therefore, UE 120 can obtain and maintain a beam pair link (BPL) with network node 110 for downlink communication (e.g., a combination of NN transmit beam 605-A and UE receive beam 610-A), which can be further refined and maintained according to one or more established beam refinement procedures.

[0089] Downlink beams (such as NN transmit beam 605 or UE receive beam 610) may be associated with a TCI state. The TCI state may indicate the directivity or characteristics of the downlink beam, such as one or more QCL characteristics of the downlink beam. QCL characteristics may include, for example, Doppler shift, Doppler spread, average delay, delay spread, or spatial reception parameters. In some examples, each NN transmit beam 605 may be associated with a Synchronization Signal Block (SSB), and the UE 120 may indicate a preferred NN transmit beam 605 by transmitting an uplink transmit in the resource of the SSB associated with the preferred NN transmit beam 605. A particular SSB may have an associated TCI state (e.g., for antenna port or for beamforming). In some examples, the network node 110 may indicate the downlink NN transmit beam 605 at least in part based on antenna port QCL attributes that can be indicated by the TCI state. For different QCL types (e.g., QCL types for different combinations of Doppler shift, Doppler spread, average delay, delay spread, or spatial reception parameters), the TCI state can be associated with a set of downlink reference signals (e.g., SSB, and aperiodic, periodic, or semi-persistent channel state information reference signals (CSI-RS)). When the QCL type indicates spatial reception parameters, the QCL type can correspond to the analog receive beamforming parameters of the UE receive beam 610 at UE 120. Therefore, UE 120 can select the corresponding UE receive beam 610 from a set of BPLs, at least in part, based on the network node 110 instructing the NN transmit beam 605 via the TCI indication.

[0090] Network node 110 may maintain a set of active TCI states for downlink shared channel transmission and a set of active TCI states for downlink control channel transmission. The set of active TCI states for downlink shared channel transmission may correspond to the beams used by network node 110 for downlink transmission on the PDSCH. The set of active TCI states for downlink control channel communication may correspond to the beams that network node 110 can use for downlink transmission on the PDCCH or in the control resource set (CORESET). UE 120 may also maintain this set of active TCI states for receiving downlink shared channel transmission and CORESET transmission. When activating TCI states for UE 120, UE 120 may have one or more antenna configurations at least partially based on the TCI states, and UE 120 may not need to reconfigure antennas or antenna weighting configurations. In some examples, the set of active TCI states for UE 120 (e.g., active PDSCH TCI states and active CORESET TCI states) may be configured by configuration messages (such as RRC messages).

[0091] In some cases, the TCI can be a unified TCI and / or the TCI state can be a unified TCI state. A unified TCI can be a TCI applied to multiple channels or signals using a joint (e.g., common) beam. In a first example (Type 1), a joint downlink and uplink common TCI state can indicate a common beam for at least one downlink channel or reference signal and at least one uplink channel or reference signal. In a second example (Type 2), a single downlink common TCI state can indicate a common beam for more than one downlink channel or reference signal. In a third example (Type 3), a single uplink common TCI state can indicate a common beam for more than one uplink channel or reference signal. In a fourth example (Type 4), a single downlink single channel or reference signal TCI state can indicate a beam for a single downlink channel or reference signal. In a fifth example (Type 5), a single uplink single channel or reference signal TCI state can indicate a beam for a single uplink channel or reference signal. In the sixth example, uplink spatial relation information (SRI) can indicate the beam used for a single uplink channel or reference signal.

[0092] As shown by reference numeral 615, network node 110 and UE 120 can communicate TCI information. As shown by reference numeral 620, network node 110 can send RRC configuration, and UE 120 can receive RRC configuration. The RRC configuration may include, for example, a TCI list and mTRP operation information. As shown by reference numeral 625, network node 110 can send and UE 120 can receive a TCI-activated Media Access Control (MAC) control element (MAC-CE). The TCI-activated MAC-CE indicates whether one TCI or two TCIs will be used. As shown by reference numeral 630, UE 120 can send and network node 110 can receive an acknowledgment (ACK). The ACK indicates that UE 120 has received the TCI-activated MAC-CE from network node 110. As shown by reference numeral 635, network node 110 can send and UE 120 can receive a first scheduled downlink DCI (DL-DCI). The first scheduled DL-DCI indicates that a single TCI will be used. As shown by reference numeral 640, network node 110 can transmit and UE 120 can receive aperiodic CSI and / or PDSCH communications based at least in part on a first scheduling DL-DCI. The aperiodic CSI and / or PDSCH communications can be received within the scheduling offset of the first scheduling DL-DCI. As shown by reference numeral 645, network node 110 can transmit and UE 120 can receive a second scheduling DL-DCI. The second scheduling DL-DCI can indicate that two TCIs will be used. As shown by reference numeral 650, network node 110 can transmit and UE 120 can receive aperiodic CSI and / or PDSCH communications based at least in part on the second scheduling DL-DCI. The aperiodic CSI and / or PDSCH communications may not be received within the scheduling offset of the second scheduling DL-DCI (e.g., may be received after the end of the scheduling offset of the second scheduling DL-DCI).

[0093] In some cases, UE 120 may receive a (non-uniform) TCI status indication and select a default beam for aperiodic CSI reception based on the TCI status indication. In other cases, UE 120 may receive a uniform TCI status indication indicating multiple beams that can be used as the default beam for aperiodic CSI reception. However, UE 120 may not be configured with information that allows UE 120 to select which of the multiple beams will be applied as the default beam for aperiodic CSI reception. This may result in UE 120 being unable to receive aperiodic CSI from network node 110, and / or may cause communication failure between UE 120 and network node 110 due to an incorrect default beam selection made by UE 120.

[0094] As indicated above, Figure 6This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.

[0095] Figure 7 This is a diagram illustrating Example 700 of a unified TCI for mTRP communication based on a single DCI, according to this disclosure.

[0096] As shown by reference numeral 705 in the accompanying drawings, network node 110 can transmit and UE 120 can receive PDCCH communication including a triggering DCI. The triggering DCI may be associated with a unified TCI used for mTRP communication based on a single DCI. In some aspects, the triggering DCI may instruct network node 110 to send aperiodic CSI-RS to UE 120. Additionally or alternatively, the triggering TCI may instruct the scheduling offset associated with the aperiodic CSI-RS to be sent by network node 110 to UE 120.

[0097] As shown by reference numeral 710 in the accompanying drawings, network node 110 can transmit and UE 120 can receive aperiodic CSI-RS. Aperiodic CSI-RS can be associated with a set of aperiodic CSI-RS resources. The set of aperiodic CSI-RS resources can be for beam management or for CSI acquisition. In some aspects, the set of aperiodic CSI-RS resources may include one or more CSI-RS resources for indicating CSI associated with a unified TCI for mTRP communication based on a single DCI.

[0098] As shown by reference numeral 715 in the attached figure, UE 120 can compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a threshold. In some aspects, the threshold can be a scheduling offset threshold, such as the scheduling offset threshold indicated in the triggered DCI. In some aspects, the threshold can be at least partially based on the beam switching timing ( beamSwitchTiming The legacy UE capabilities indicated by the version 16 beam switching timing ( beamSwitchTiming- r16 The threshold can be at least partially based on the indication. beamSwitchTiming Another UE capability indicated, such as version 18 beam switching timing ( beamSwitchTiming-r18 )instruct.

[0099] As shown by reference numeral 720 in the attached figure, UE 120 may select a default TCI state based on the scheduling offset not meeting a scheduling offset threshold and based on one or more TCI states being indicated in the same symbol as the symbol used for receiving aperiodic CSI-RS. In some aspects, UE 120 may determine that the scheduling offset not meeting the scheduling offset threshold is based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold. Additionally, UE 120 may determine whether one or more TCI states are indicated in the same symbol as the symbol used for receiving aperiodic CSI-RS, based on the examples provided below.

[0100] In the first example, if another downlink signal with an indicated joint or downlink TCI state exists in the same symbol as the aperiodic CSI-RS, the UE 120 may apply the QCL attribute of that other downlink signal when receiving the aperiodic CSI-RS. In some aspects, this other downlink signal may be an “other DL signal” as described in Clause 5.2.1.5 of Technical Specification (TS) 38.214 of the 3GPP specification. In some aspects, this other downlink signal may correspond to PDSCH communication scheduled using an offset from the PDSCH scheduling DCI, the offset being greater than or equal to the duration of the QCL. timeDurationForQCL Thresholds, for example, as described in 3GPP specification TS 38.306. In some respects, when the reported value is the value {14, 28, 48} One of them does not provide an opportunity to enable beam switching. enableBeamSwitchTiming When indicated, this other downlink signal may correspond to the use of a signal greater than or equal to that reported by the UE. beamSwitchTiming Aperiodic CSI-RS with threshold offset scheduling. In some respects, when beamSwitchTiming-r16 The reported value is {224, 336}. One of them, or when providing beamSwitchTiming-r18 and enableBeamSwitchTiming (For example, for periodic CSI-RS and / or semi-persistent CSI-RS), this additional downlink signal may correspond to the use of greater than or equal to 48 The offset scheduling of the aperiodic CSI-RS. In some respects, if UE 120 receives PDSCH communication with two TCI states in the same symbol as the CSI-RS, UE 120 may apply the first of the two TCI states when receiving the aperiodic CSI-RS.

[0101] In the second example, if there exists a PDSCH in which the combined or downlink TCI states of the two indications are applied to the same symbol as the CSI-RS, the UE 120 may select one or more default TCI states based on the UE configuration for the CSI-RS. In some aspects, the UE 120 may support and / or be configured to use a single default beam for receiving aperiodic CSI-RS. In this case, the UE 120 may apply one TCI indicated for the PDSCH to receive aperiodic CSI-RS (e.g., the first indicated TCI). Alternatively, the UE 120 may apply either the first indicated TCI or the second indicated TCI, at least in part, based on the configuration of the CSI resources or the CSI resource set. In some other aspects, the UE 120 may support and / or be configured to use two beams for receiving CSI-RS. In this case, the UE 120 may use either the combined TCI state indicated for the PDSCH or the downlink TCI state to receive aperiodic CSI-RS.

[0102] In the third example, UE 120 may apply a different TCI than the TCI indicated in the first and second examples. For example, UE 120 may apply a different TCI at least in part based on the absence of another downlink signal with the indicated joint or downlink TCI state in the same symbol as the aperiodic CSI-RS and at least in part based on the absence of a PDSCH in the same symbol as the CSI-RS that applies both indicated joint or downlink TCI states. In some aspects, UE 120 may select a different TCI at least in part based on the DCI received during mTRP operation that schedules one or more downlink messages for reception, wherein the DCI includes an indication of one or more TCI states for reception of the one or more downlink messages, indicating that the one or more downlink messages are scheduled for reception before the end of an offset window associated with processing the indication of the one or more TCI states, wherein the start of the offset window is at least in part based on the DCI message, and at least in part based on the DCI and mTRP operation to select one or more default uniform TCI states.

[0103] As indicated above, Figure 7 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 7 The examples described are different.

[0104] Figure 8 This is a diagram illustrating Example 800 of a unified TCI for mTRP communication based on multiple DCIs according to this disclosure.

[0105] As shown by reference numeral 805 in the accompanying drawings, network node 110 can transmit and UE 120 can receive PDCCH communication including a triggering DCI. The triggering DCI may be associated with a unified TCI for mTRP communication based on multiple DCIs. In some aspects, the triggering DCI may instruct network node 110 to send aperiodic CSI-RS to UE 120. Additionally or alternatively, the triggering TCI may instruct a scheduling offset associated with the aperiodic CSI-RS to be sent by network node 110 to UE 120.

[0106] As shown by reference numeral 810 in the attached figure, network node 110 can transmit and UE 120 can receive aperiodic CSI-RS. Aperiodic CSI-RS can be associated with a set of aperiodic CSI-RS resources. The set of aperiodic CSI-RS resources can be for beam management or for transmitting CSI. In some aspects, the set of aperiodic CSI-RS resources may include one or more CSI-RS resources for indicating CSI associated with a unified TCI for mTRP communication based on a single DCI.

[0107] As shown by reference numeral 815 in the attached figure, UE 120 can compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a threshold. In some aspects, the threshold can be a scheduling offset threshold, such as the scheduling offset threshold indicated in the triggered DCI. In some aspects, the threshold can be at least partially based on the beam switching timing ( beamSwitchTiming The legacy UE capabilities indicated by the version 16 beam switching timing ( beamSwitchTiming- r16 The threshold can be at least partially based on the indication. beamSwitchTiming Another UE capability indicated, such as version 18 beam switching timing ( beamSwitchTiming-r18 )instruct.

[0108] As shown by reference numeral 820 in the attached figure, UE 120 may select a default TCI state based on whether the scheduling offset does not meet a scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive aperiodic CSI-RS. In some aspects, UE 120 may determine that the scheduling offset does not meet the scheduling offset threshold based on the fact that the time period associated with the scheduling offset is less than the time period associated with the scheduling offset threshold. Additionally, UE 120 may determine whether a joint TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive aperiodic CSI-RS, based on the examples provided below.

[0109] In the first example, if another downlink signal with an indicated joint or downlink TCI state exists in the same symbol as the aperiodic CSI-RS, the UE 120 may apply the QCL attribute of that other downlink signal when receiving the aperiodic CSI-RS. In some aspects, this other downlink signal may be an “other DL signal” as described in Clause 5.2.1.5 of TS 38.214 of the 3GPP specification. In some aspects, this other downlink signal may correspond to the same CORESET pool index as the PDCCH that triggers the aperiodic CSI-RS (…). coresetPoolIndex The associated PDCCH schedules PDSCH communication, and utilizes greater than or equal to timeDurationForQCL Threshold offset scheduling, for example, as described in 3GPP specification TS 38.306. In some respects, when the reported value is the value {14, 28, 48} One of them and not provided enableBeamSwitchTiming When indicated, this other downlink signal may correspond to the same PDCCH that triggers aperiodic CSI-RS. coresetPoolIndex The associated PDCCH is triggered and utilizes a value greater than or equal to that reported by the UE. beamSwitchTiming Aperiodic CSI-RS with threshold offset scheduling. In some respects, when beamSwitchTiming-r16 The reported value is {224, 336}. One of them, or when providing beamSwitchTiming-r18 and enableBeamSwitchTiming (For example, for periodic CSI-RS and / or semi-persistent CSI-RS), this additional downlink signal may correspond to the same PDCCH that triggers aperiodic CSI-RS. coresetPoolIndex Associated PDCCH trigger and utilize greater than or equal to 48 The offset scheduling of non-periodic CSI-RS.

[0110] In the second example, UE 120 may identify the absence of a downlink signal with an indicated joint or downlink TCI state in the same symbol as the aperiodic CSI-RS. In this case, if UE 120 is in frequency range 1 (FR1) or if UE 120 supports a default beam for each of the multi-DCI based mTRPs in frequency range 2 (FR2). coresetPoolIndexIf the UE 120 has the capability, then the UE 120 may apply the first indicated joint or downlink TCI state or the second indicated joint or downlink TCI state to the aperiodic CSI-RS resources in the aperiodic CSI-RS resource set according to the RRC configuration associated with the aperiodic CSI-RS resource or aperiodic CSI-RS resource set. Otherwise, if the UE 120 is not in FR1 and if the UE 120 does not support the default beam for each of the multi-DCI based mTRPs in FR2. coresetPoolIndex If the UE 120 has the capability, then it can be connected with the minimum coresetPoolIndex Values ​​(e.g., coresetPoolIndex The associated indication of the joint or downlink TCI state (value 0) applies to aperiodic CSI-RS resources or aperiodic CSI-RS resource sets.

[0111] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.

[0112] Figure 9 This is a diagram illustrating an example process 900 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 900 is an example of a device or UE (e.g., UE 120) performing operations associated with a unified TCI for multi-TRP communication.

[0113] like Figure 9 As shown, in some aspects, process 900 may include receiving PDCCH communication (block 910) that triggers DCI and is associated with a unified TCI for mTRP communication based on a single DCI. For example, the UE (e.g., using...) Figure 11 The described receiving component 1102 and / or communication manager 1106 can receive PDCCH communication that triggers the DCI and is associated with a unified TCI for mTRP communication based on a single DCI, as described above. Figure 7 Described.

[0114] like Figure 9 As further shown, in some aspects, process 900 may include receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set (block 920). For example, the UE (e.g., using...) Figure 11 The described receiving component 1102 and / or communication manager 1106 can receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set, as described above. Figure 7 Described.

[0115] like Figure 9Further, as shown, in some aspects, process 900 may include comparing the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold (box 930). For example, the UE (e.g., using...) Figure 11 The described communication manager 1106 can compare the scheduling offset with a scheduling offset threshold between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS, as described above. Figure 7 Described.

[0116] like Figure 9 Further, as shown, in some aspects, process 900 may include selecting a default TCI state based on the scheduling offset not being satisfied with a scheduling offset threshold and based on one or more TCI states indicated in the same symbols used for receiving aperiodic CSI-RS (box 940). For example, the UE (e.g., using...) Figure 11 The described communication manager 1106 can select a default TCI state based on the scheduling offset not meeting the scheduling offset threshold and based on one or more TCI states indicated in the same symbols used for receiving aperiodic CSI-RS, as described above. Figure 7 Described.

[0117] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0118] In a first aspect, one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS correspond to a joint TCI state or a downlink TCI state included in a downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0119] In a second aspect, either alone or in combination with the first aspect, selecting the default TCI state includes selecting the default TCI state based on the joint TCI state or the downlink TCI state included in the downlink signal and applying quasi-co-address characteristics, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0120] In the third aspect, the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS, either alone or in combination with one or more of the first and second aspects, is a downlink signal included in multi-TRP communication based on a single DCI.

[0121] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS include two joint TCI states or two downlink TCI states, which are included in applying the two joint TCI states or the two downlink TCI states to physical downlink shared channel (PDSCH) communication in the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0122] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the UE is configured to receive the aperiodic CSI-RS using a single default beam, and selecting the default TCI state includes selecting the TCI state indicated by the first of the two joint TCI states or the two downlink TCI states as the default TCI state.

[0123] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the UE is configured to receive the aperiodic CSI-RS using a single default beam, and the selection of the default TCI state includes selecting the TCI state of the first indication or the TCI state of the two joint TCI states or the two downlink TCI states based on the CSI resource indication or the CSI resource set indication.

[0124] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the UE is configured to use two default beams to receive the aperiodic CSI-RS, and selecting the default TCI state includes selecting two of the two joint TCI states or the two downlink TCI states as the default TCI state.

[0125] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the scheduling offset threshold corresponds to the non-uniform TCI beam switching timing threshold.

[0126] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the scheduling offset threshold corresponds to the unified TCI beam switching timing threshold.

[0127] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, process 900 includes applying the default TCI state to the non-periodic CSI-RS according to the selection of the default TCI state.

[0128] In the eleventh aspect, selecting the default TCI state based on the scheduling offset not meeting the scheduling offset threshold, either alone or in combination with one or more of the first to tenth aspects, includes selecting the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

[0129] although Figure 9 An example box for process 900 is shown, but in some respects, it differs from... Figure 9 Compared to the boxes depicted, process 900 may include additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 900 may be executed in parallel.

[0130] Figure 10 This is a diagram illustrating an example process 1000 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1000 is an example of a device or UE (e.g., UE 120) performing operations associated with a unified TCI for multi-TRP communication.

[0131] like Figure 10 As shown, in some aspects, process 1000 may include receiving PDCCH communication (block 1010) that includes triggering DCI associated with a unified TCI for mTRP communication based on multiple DCI. For example, the UE (e.g., using...) Figure 11 The described receiving component 1102 and / or communication manager 1106 can receive PDCCH communication that triggers DCI and is associated with a unified TCI for mTRP communication based on multiple DCI, as described above. Figure 8 Described.

[0132] like Figure 10 Further shown, in some aspects, process 1000 may include receiving aperiodic CSI-RS associated with an aperiodic CSI-RS resource set (block 1020). For example, the UE (e.g., using...) Figure 11 The described receiving component 1102 and / or communication manager 1106 can receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set, as described above. Figure 8 Described.

[0133] like Figure 10 Further shown, in some aspects, process 1000 may include comparing the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold (box 1030). For example, the UE (e.g., using...) Figure 11The described communication manager 1106 can compare the scheduling offset with a scheduling offset threshold between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS, as described above. Figure 8 Described.

[0134] like Figure 10 Further shown, in some aspects, process 1000 may include selecting a default TCI state based on whether the scheduling offset does not meet a scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive aperiodic CSI-RS (box 1040). For example, the UE (e.g., using...) Figure 11 The described communication manager 1106 can select a default TCI state based on whether the scheduling offset does not meet the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive aperiodic CSI-RS, as described above. Figure 8 Described.

[0135] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0136] In a first aspect, process 1000 includes identifying a combined TCI state or a downlink TCI state via a downlink signal transmitted via the same symbol as the symbol used to receive aperiodic CSI-RS.

[0137] In a second aspect, either alone or in combination with the first aspect, selecting the default TCI state includes selecting the default TCI state based on the joint TCI state or the downlink TCI state included in the downlink signal and applying quasi-co-address characteristics, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0138] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 1000 includes identifying that the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS does not indicate the joint TCI state or the downlink TCI state.

[0139] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the UE is configured to communicate using frequency range one or to use the default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

[0140] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 1000 includes applying a first indicated joint TCI state, a first indicated downlink TCI state, a second indicated joint TCI state, or a second indicated downlink TCI state to one or more aperiodic CSI-RS resources included in the aperiodic CSI-RS resource set according to a radio resource control configuration associated with the aperiodic CSI-RS resource set or multiple CSI-RS resources included in the aperiodic CSI-RS resource set.

[0141] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the UE is not configured to communicate using frequency range one or to use the default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

[0142] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 1000 includes applying a joint TCI state or downlink TCI state associated with the minimum control resource set pool value to the aperiodic CSI-RS resource set or to multiple CSI-RS resources included in the aperiodic CSI-RS resource set.

[0143] In the eighth aspect, the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS, either alone or in combination with one or more of the first to seventh aspects, is a downlink signal included in multi-TRP communication based on a single DCI.

[0144] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the scheduling offset threshold corresponds to the non-uniform TCI beam switching timing threshold.

[0145] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the scheduling offset threshold corresponds to the unified TCI beam switching timing threshold.

[0146] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 1000 includes applying the default TCI state to the non-periodic CSI-RS according to the selection of the default TCI state.

[0147] In the twelfth aspect, selecting the default TCI state based on the scheduling offset not meeting the scheduling offset threshold, either alone or in combination with one or more of the first to eleventh aspects, includes selecting the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

[0148] although Figure 10 An example box for process 1000 is shown, but in some respects, it differs from... Figure 10 Compared to the boxes depicted, process 1000 may include additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Additionally or alternatively, two or more boxes in process 1000 may be executed in parallel.

[0149] Figure 11 This is a diagram of an example device 1100 for wireless communication according to the present disclosure. Device 1100 may be a UE, or a UE may include device 1100. In some aspects, device 1100 includes a receiving component 1102, a transmitting component 1104, and / or a communication manager 1106 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, the communication manager 1106 is combined with... Figure 1 The described communication manager 140. As shown, device 1100 can communicate with another device 1108 (such as a UE or a network node (such as a CU, DU, RU or base station)) using receiving component 1102 and transmitting component 1104.

[0150] In some respects, device 1100 can be configured to perform the functions described herein. Figures 7 to 8 The described one or more operations. Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Figure 9 The process 900 Figure 10 The process 1000 or a combination thereof. In some respects, Figure 11 The illustrated device 1100 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 11 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Alternatively or concurrently, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0151] Receiver 1102 may receive communications from device 1108, such as reference signals, control information, data communications, or combinations thereof. Receiver 1102 may provide the received communications to one or more other components of device 1100. In some aspects, receiver 1102 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 one or more other components of device 1100. In some aspects, receiver 1102 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0152] Transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1108. In some aspects, one or more other components of device 1100 may generate communications and provide the generated communications to transmitting component 1104 for transmission to device 1108. In some aspects, transmitting component 1104 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 1108. In some aspects, transmitting component 1104 may include combinations of... Figure 2 The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1104 may co-located with the receive component 1102 in one or more transceivers.

[0153] The communication manager 1106 may support the operation of the receiving component 1102 and / or the transmitting component 1104. For example, the communication manager 1106 may receive information associated with configuring the reception of communications by the receiving component 1102 and / or the transmission of communications by the transmitting component 1104. Additionally or alternatively, the communication manager 1106 may generate control information and / or provide control information to the receiving component 1102 and / or the transmitting component 1104 to control the reception and / or transmission of communications.

[0154] Receiver 1102 can receive PDCCH communications that include triggering DCIs associated with a unified TCI for mTRP communications based on a single DCI. Receiver 1102 can also receive aperiodic CSI-RSs associated with an aperiodic CSI-RS resource set. Communication manager 1106 can compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold. Communication manager 1106 can select a default TCI state based on one or more TCI states indicated in the same symbols used to receive the aperiodic CSI-RS if the scheduling offset does not meet the scheduling offset threshold. Communication manager 1106 can apply the selected default TCI state to the aperiodic CSI-RS.

[0155] Receiver 1102 can receive PDCCH communications that trigger DCI, including those associated with a unified TCI for mTRP communications based on multiple DCI. Receiver 1102 can also receive aperiodic CSI-RS associated with an aperiodic CSI-RS resource set. Communication manager 1106 can compare the scheduling offset between the last symbol of the PDCCH communications and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold. Communication manager 1106 can select a default TCI state based on whether the scheduling offset does not meet the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbol used to receive the aperiodic CSI-RS. Communication manager 1106 can identify whether a downlink signal transmitted via the same symbol used to receive the aperiodic CSI-RS indicates a joint TCI state or a downlink TCI state. The communication manager 1106 can identify that a downlink signal transmitted via the same symbol used for receiving aperiodic CSI-RS does not indicate a joint TCI state or a downlink TCI state. The communication manager 1106 can apply a first indicated joint TCI state, a first indicated downlink TCI state, a second indicated joint TCI state, or a second indicated downlink TCI state to one or more aperiodic CSI-RS resources included in the aperiodic CSI-RS resource set, according to a radio resource control configuration associated with the aperiodic CSI-RS resource set or multiple CSI-RS resources included in the aperiodic CSI-RS resource set. The communication manager 1106 can apply a joint TCI state or a downlink TCI state associated with a minimum control resource set pool value to the aperiodic CSI-RS resource set or multiple CSI-RS resources included in the aperiodic CSI-RS resource set. The communication manager 1106 can apply a default TCI state to the aperiodic CSI-RS by selecting a default TCI state.

[0156] Figure 11 The number and arrangement of components shown are provided as an example. In reality, with... Figure 11 Compared to the components shown, there may be additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 11 The two or more components shown can be implemented within a single component, or Figure 11 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 11 The component collection (one or more components) shown can be executed as described by Figure 11 The other set of components shown performs one or more functions.

[0157] The following provides an overview of some aspects of this disclosure: Aspect 1: A method for wireless communication performed by a user equipment (UE), the method comprising: receiving physical downlink control channel (PDCCH) communication including triggering downlink control information (DCI) associated with a unified transmit configuration indication (TCI) for multi-transmit receive point (mTRP) communication based on a single DCI; receiving an aperiodic CSI-RS associated with an aperiodic channel state information (CSI) reference signal (S) (CSI-RS) resource set; comparing a scheduling offset between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS with a scheduling offset threshold; and selecting a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on one or more TCI states indicated in the same symbols as those used to receive the aperiodic CSI-RS.

[0158] Aspect 2: According to the method of aspect 1, wherein the one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS correspond to a joint TCI state or a downlink TCI state included in a downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0159] Aspect 3: According to the method of aspect 2, selecting the default TCI state includes selecting the default TCI state based on the joint TCI state or the downlink TCI state included in the downlink signal and applying quasi-co-address characteristics, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0160] Aspect 4: According to the method of aspect 3, wherein the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS is a downlink signal included in multi-TRP communication based on a single DCI.

[0161] Aspect 5: The method according to any one of Aspects 1 to 4, wherein the one or more TCI states indicated in the same symbol as the symbol for receiving the aperiodic CSI-RS include two joint TCI states or two downlink TCI states, the two joint TCI states or the two downlink TCI states being included in physical downlink shared channel (PDSCH) communication in the same symbol as the symbol for receiving the aperiodic CSI-RS.

[0162] Aspect 6: According to the method of aspect 5, wherein the UE is configured to receive the aperiodic CSI-RS using a single default beam, and wherein selecting the default TCI state includes selecting the TCI state indicated by a first of the two joint TCI states or the two downlink TCI states as the default TCI state.

[0163] Aspect 7: According to the method of aspect 5, wherein the UE is configured to receive the aperiodic CSI-RS using a single default beam, and wherein selecting the default TCI state includes selecting the TCI state of the first indication or the second indication of the two joint TCI states or the two downlink TCI states based on a CSI resource indication or a CSI resource set indication.

[0164] Aspect 8: According to the method of aspect 5, wherein the UE is configured to receive the aperiodic CSI-RS using two default beams, and wherein selecting the default TCI state includes selecting two of the two joint TCI states or the two downlink TCI states as the default TCI state.

[0165] Aspect 9: The method according to any one of Aspects 1 to 8, wherein the scheduling offset threshold corresponds to a non-uniform TCI beam switching timing threshold.

[0166] Aspect 10: The method according to any one of Aspects 1 to 9, wherein the scheduling offset threshold corresponds to the unified TCI beam switching timing threshold.

[0167] Aspect 11: The method according to any one of Aspects 1 to 10, the method further comprising applying the default TCI state to the aperiodic CSI-RS according to selecting the default TCI state.

[0168] Aspect 12: The method according to any one of Aspects 1 to 11, wherein selecting the default TCI state based on the scheduling offset not satisfying the scheduling offset threshold includes selecting the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

[0169] Aspect 13: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving physical downlink control channel (PDCCH) communication including triggering downlink control information (DCI) associated with a unified transmit configuration indication (TCI) for multi-transmitter receive point (mTRP) communication based on multiple DCI; receiving an aperiodic CSI-RS associated with an aperiodic channel state information (CSI) reference signal (S) (CSI-RS) resource set; comparing a scheduling offset and a scheduling offset threshold between the last symbol of the PDCCH communication and a first symbol of the aperiodic CSI-RS; and selecting a default TCI state based on the scheduling offset not satisfying the scheduling offset threshold and based on whether a joint TCI state or a downlink TCI state is indicated in a downlink signal, the downlink signal being transmitted via the same symbols as those used to receive the aperiodic CSI-RS.

[0170] Aspect 14: According to the method of aspect 13, the method further includes identifying the joint TCI state or the downlink TCI state by the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0171] Aspect 15: According to the method of aspect 14, selecting the default TCI state includes selecting the default TCI state based on the joint TCI state or the downlink TCI state indicated in the downlink signal and applying quasi-co-address characteristics, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

[0172] Aspect 16: The method according to any one of Aspects 13 to 15, the method further comprising identifying that the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS does not indicate the joint TCI state or the downlink TCI state.

[0173] Aspect 17: According to the method of aspect 16, wherein the UE is configured to communicate using frequency range one or is configured to use a default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

[0174] Aspect 18: The method according to aspect 17, the method further comprising applying a first indicated joint TCI state, a first indicated downlink TCI state, a second indicated joint TCI state, or a second indicated downlink TCI state to one or more aperiodic CSI-RS resources included in the aperiodic CSI-RS resource set according to a radio resource control configuration associated with the aperiodic CSI-RS resource set or a plurality of CSI-RS resources included in the aperiodic CSI-RS resource set.

[0175] Aspect 19: The method according to aspect 16, wherein the UE is not configured to communicate using frequency range one or is configured to use the default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

[0176] Aspect 20: According to the method of aspect 19, the method further includes applying a joint TCI state or downlink TCI state associated with a minimum control resource set pool value to the aperiodic CSI-RS resource set or to a plurality of CSI-RS resources included in the aperiodic CSI-RS resource set.

[0177] Aspect 21: The method according to any one of Aspects 13 to 20, wherein the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS is a downlink signal included in a multi-TRP communication based on a single DCI.

[0178] Aspect 22: The method according to any one of Aspects 13 to 21, wherein the scheduling offset threshold corresponds to a non-uniform TCI beam switching timing threshold.

[0179] Aspect 23: The method according to any one of Aspects 13 to 22, wherein the scheduling offset threshold corresponds to a unified TCI beam switching timing threshold.

[0180] Aspect 24: The method according to any one of aspects 13 to 23, the method further comprising applying the default TCI state to the aperiodic CSI-RS according to selecting the default TCI state.

[0181] Aspect 25: The method according to any one of Aspects 13 to 24, wherein selecting the default TCI state based on the scheduling offset not satisfying the scheduling offset threshold includes selecting the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

[0182] Aspect 26: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 25.

[0183] Aspect 27: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 25.

[0184] Aspect 28: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 25.

[0185] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 1 to 25.

[0186] Aspect 30: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 25.

[0187] Aspect 31: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 25.

[0188] Aspect 32: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 25.

[0189] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit aspects to the precise forms disclosed. Modifications and variations can be made based on the foregoing disclosure, or from various forms of practice.

[0190] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, no specific software code is referenced in this document to describe the operation and behavior of the systems and / or methods, as those skilled in the art will understand that the software and hardware can be designed, at least in part, based on the descriptions herein, to implement the systems and / or methods.

[0191] Hardware and data processing means for implementing the various exemplary logic, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In some aspects, specific processes and methods can be performed by circuitry dedicated to a given function.

[0192] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0193] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with each other claim in the set of claims. As used herein, the phrase referring to “at least one of” the list of items means 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, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0194] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are interchangeable with “one or more.” Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is interchangeable with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more items and are interchangeable with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “have,” “possess,” “have,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., in the case of its use in conjunction with “any” or “only one”).

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, said one or more processors being coupled to said one or more memories and configured to cause the UE to: Receiving includes physical downlink control channel (PDCCH) communication that is associated with a unified transmit configuration indication (TCI) for communication of multiple transmit receive points (mTRP) based on a single DCI and triggers downlink control information (DCI). Receive aperiodic CSI-RS associated with the aperiodic Channel State Information (CSI) Reference Signal (RS) (CSI-RS) resource set; Compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; as well as The default TCI state is selected based on the fact that the scheduling offset does not meet the scheduling offset threshold and based on one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS.

2. The apparatus of claim 1, wherein the one or more TCI states indicated in the same symbol as the symbol used for receiving the aperiodic CSI-RS correspond to a joint TCI state or a downlink TCI state included in a downlink signal transmitted via the same symbol as the symbol used for receiving the aperiodic CSI-RS.

3. The apparatus of claim 2, wherein, in order for the UE to select the default TCI state, the one or more processors are configured to cause the UE to select the default TCI state and apply quasi-co-address characteristics based on the joint TCI state or the downlink TCI state included in the downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

4. The apparatus of claim 3, wherein the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS is a downlink signal included in multi-TRP communication based on a single DCI.

5. The apparatus of claim 1, wherein the one or more TCI states indicated in the same symbol as the symbol for receiving the aperiodic CSI-RS include two joint TCI states or two downlink TCI states, the two joint TCI states or the two downlink TCI states being included in applying the two joint TCI states or the two downlink TCI states to physical downlink shared channel (PDSCH) communication in the same symbol as the symbol for receiving the aperiodic CSI-RS.

6. The apparatus of claim 5, wherein the UE is configured to receive the aperiodic CSI-RS using a single default beam, and wherein, in order for the UE to select the default TCI state, the one or more processors are configured to cause the UE to select the default TCI state as the default TCI state by choosing either the two joint TCI states or the first indicated TCI state of the two downlink TCI states.

7. The apparatus of claim 5, wherein the UE is configured to receive the aperiodic CSI-RS using a single default beam, and wherein, in order for the UE to select the default TCI state, the one or more processors are configured to cause the UE to select, based on a CSI resource indication or a CSI resource set indication, the TCI state of the first indication or the TCI state of the two joint TCI states or the two downlink TCI states.

8. The apparatus of claim 5, wherein the UE is configured to receive the aperiodic CSI-RS using two default beams, and wherein, in order for the UE to select the default TCI state, the one or more processors are configured to cause the UE to select two of the two joint TCI states or the two downlink TCI states as the default TCI state.

9. The apparatus according to claim 1, wherein the scheduling offset threshold corresponds to a non-uniform TCI beam switching timing threshold.

10. The apparatus of claim 1, wherein the scheduling offset threshold corresponds to a unified TCI beam switching timing threshold.

11. The apparatus of claim 1, wherein the one or more processors are further configured to cause the UE to apply the default TCI state to the aperiodic CSI-RS based on selecting the default TCI state.

12. The apparatus of claim 1, wherein, in order for the UE to select the default TCI state based on the scheduling offset not being satisfied with the scheduling offset threshold, the one or more processors are configured to cause the UE to select the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

13. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, said one or more processors being coupled to said one or more memories and configured to cause the UE to: Receive includes physical downlink control channel (PDCCH) communication that is associated with a unified transmit configuration indication (TCI) for multi-transmit-receive-point (mTRP) communication based on multiple DCI; Receive aperiodic CSI-RS associated with the aperiodic Channel State Information (CSI) Reference Signal (RS) (CSI-RS) resource set; Compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; as well as The default TCI state is selected based on whether the scheduling offset does not meet the scheduling offset threshold and whether the joint TCI state or the downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive the aperiodic CSI-RS.

14. The apparatus of claim 13, wherein the one or more processors are further configured to cause the UE identifier to indicate the joint TCI state or the downlink TCI state via the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

15. The apparatus of claim 14, wherein, in order for the UE to select the default TCI state, the one or more processors are configured to cause the UE to select the default TCI state and apply quasi-co-address characteristics based on the joint TCI state or the downlink TCI state indicated in the downlink signal, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

16. The apparatus of claim 13, wherein the one or more processors are further configured to cause the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS to not indicate the joint TCI state or the downlink TCI state.

17. The apparatus of claim 16, wherein the one or more processors are further configured to cause the UE to communicate using frequency range one, or to use a default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

18. The apparatus of claim 17, wherein the one or more processors are further configured to cause the UE to apply a first indicated joint TCI state, a first indicated downlink TCI state, a second indicated joint TCI state, or a second indicated downlink TCI state to one or more aperiodic CSI-RS resources included in the aperiodic CSI-RS resource set, according to a radio resource control configuration associated with the aperiodic CSI-RS resource set or a plurality of CSI-RS resources included in the aperiodic CSI-RS resource set.

19. The apparatus of claim 16, wherein the one or more processors are further configured to cause the UE to use a default beam for each control resource set pool index of multi-DCI-based mTRP communication in frequency range two.

20. The apparatus of claim 19, wherein the one or more processors are further configured to cause the UE to apply a joint TCI state or downlink TCI state associated with a minimum control resource set pool value to the aperiodic CSI-RS resource set or a plurality of CSI-RS resources included in the aperiodic CSI-RS resource set.

21. The apparatus of claim 13, wherein the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS is a downlink signal included in multi-TRP communication based on a single DCI.

22. The apparatus of claim 13, wherein the scheduling offset threshold corresponds to a non-uniform TCI beam switching timing threshold.

23. The apparatus of claim 13, wherein the scheduling offset threshold corresponds to a unified TCI beam switching timing threshold.

24. The apparatus of claim 13, wherein the one or more processors are further configured to cause the UE to apply the default TCI state to the aperiodic CSI-RS based on selecting the default TCI state.

25. The apparatus of claim 13, wherein, in order for the UE to select the default TCI state based on the scheduling offset not being satisfied with the scheduling offset threshold, the one or more processors are configured to cause the UE to select the default TCI state based on the time period associated with the scheduling offset being less than the time period associated with the scheduling offset threshold.

26. A method for wireless communication performed by a user equipment (UE), the method comprising: Receiving includes physical downlink control channel (PDCCH) communication that is associated with a unified transmit configuration indication (TCI) for communication of multiple transmit receive points (mTRP) based on a single DCI and triggers downlink control information (DCI). Receive aperiodic CSI-RS associated with the aperiodic Channel State Information (CSI) Reference Signal (RS) (CSI-RS) resource set; Compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; as well as The default TCI state is selected based on the fact that the scheduling offset does not meet the scheduling offset threshold and based on one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS.

27. The method of claim 26, wherein the one or more TCI states indicated in the same symbol as the symbol used to receive the aperiodic CSI-RS correspond to a joint TCI state or a downlink TCI state included in a downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

28. The method of claim 27, wherein selecting the default TCI state comprises selecting the default TCI state based on the joint TCI state or the downlink TCI state included in the downlink signal and applying quasi-co-address characteristics, the downlink signal being transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

29. A method for wireless communication performed by a user equipment (UE), the method comprising: Receive includes physical downlink control channel (PDCCH) communication that is associated with a unified transmit configuration indication (TCI) for multi-transmit-receive-point (mTRP) communication based on multiple DCI; Receive aperiodic CSI-RS associated with the aperiodic Channel State Information (CSI) Reference Signal (RS) (CSI-RS) resource set; Compare the scheduling offset between the last symbol of the PDCCH communication and the first symbol of the aperiodic CSI-RS with a scheduling offset threshold; as well as The default TCI state is selected based on whether the scheduling offset does not meet the scheduling offset threshold and whether the joint TCI state or the downlink TCI state is indicated in the downlink signal, which is transmitted via the same symbols used to receive the aperiodic CSI-RS.

30. The method of claim 29, the method further comprising identifying the joint TCI state or the downlink TCI state indicated by the downlink signal transmitted via the same symbol as the symbol used to receive the aperiodic CSI-RS.

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