UE reporting for uplink simultaneous multi-panel transmission

Abstract

This disclosure provides systems, apparatus, apparatuses, and methods, including computer programs encoded on a storage medium, for UE reporting for STxMP. The UE (102) receives (604), from the network entity (104), control signaling for transmission (616) of a report associated with the STxMP. The control signaling indicates at least one of a reporting amount of uplink beams for reporting, one or more downlink reference signals to be measured for reporting, barring timer information for transmission (616) of reporting, or uplink resources for transmission (616) of reporting. The UE sends (616) a report conforming to the control signaling to the network entity (104) based on the trigger condition. The report corresponds to at least one of a beam report for the STxMP or a panel state update report for the STxMP.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications and, more particularly, to user equipment (UE) reporting regarding simultaneous uplink transmissions from multiple panels of the UE. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) specifies a radio interface known as the fifth generation (5G) New Radio (NR) (5G NR). The architecture of a 5G NR wireless communication system may include a 5G core (5GC) network, a 5G radio access network (5G-RAN), user equipment (UE), etc. The 5G NR architecture may provide increased data rates, reduced latency, and / or increased capacity compared to other types of wireless communication systems.

[0003] Wireless communication systems may generally be configured to provide various telecommunication services (e.g., telephony, video, data, messaging, broadcast, etc.) based on multiple access technologies (such as orthogonal frequency division multiple access (OFDMA) technologies) that support communication with multiple UEs. Improvements in mobile broadband have been useful for the continued development of such wireless communication technologies. For example, a user equipment (UE) that simultaneously activates multiple uplink transmission panels may experience higher throughput or lower error rates in some cases. However, in other cases, UE transmissions on multiple antenna panels may result in performance or power efficiency degradation without significant throughput or error rate benefits. Summary of the invention

[0004] The following presents a simplified overview of one or more aspects in order to provide a basic understanding of such aspects. This overview is not an extensive review of all contemplated aspects. This overview neither identifies the key or important elements of all aspects, nor describes the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0005] If a user equipment (UE) includes multiple antenna panels, a network entity (such as a base station or a unit of a base station) may schedule the UE to send uplink signals simultaneously via more than one beam. This technique may be referred to as multi-panel simultaneous transmission (STxMP). When a UE has multiple panels, repeatedly activating multiple physical uplink panels for STxMP may increase power consumption at the UE. In some cases, the UE may not obtain significant communication benefits from having multiple uplink panels activated at the same time. For example, if the UE is near the center of a cell with a strong single channel cluster, the uplink beam of the UE may not have sufficient signal strength due to different channel clusters associated with different network entities / base stations that are far away. In a further example, if multiple uplink beams of the UE have sufficient signal strength for the same channel cluster, the multiple beams may be associated with the same physical uplink transmission panel at the UE, rather than being associated with a different physical uplink transmission panel for each beam. Therefore, activating multiple panels may result in reduced power efficiency at the UE. Repeatedly activating and deactivating multiple physical uplink panels may also cause the panels to overheat and degrade the performance of the UE.

[0006] In some examples, a network entity may have to be aware of UE panel state changes (e.g., activation / deactivation) because the state change may affect the transmission configuration indicator (TCI) state (e.g., if only one panel is active, the UE cannot send two beams simultaneously) and / or precoder selection (e.g., the UE cannot send uplink signals from more layers than the layer associated with the activated panel). Although the network entity may trigger beam reporting without receiving panel information from the UE, the timing of the triggering may not be appropriate for STxMP. For example, in the absence of panel state information, the network entity may not have information to configure appropriate timing for beam reporting periodicity and time slot offsets for beam reporting (e.g., based on UE panel state changes). Aspects of the present disclosure address the above-mentioned and other deficiencies of network-triggered beam reporting associated with UE panel information by configuring UE-triggered beam reporting / UE-assisted information reporting associated with UE panel information and / or control signaling for indicating a downlink precoder associated with a UE panel state change.

[0007] According to some aspects, the UE receives control signaling for the transmission of a report associated with STxMP from a network entity. The control signaling indicates at least one of: a reported amount of an uplink beam for reporting, one or more downlink reference signals to be measured for reporting, prohibition timer information for an uplink scheduling request, or an uplink resource for transmission of the report. The UE sends a report associated with STxMP to the network entity based on a trigger condition. The report corresponds to at least one of: a beam report for STxMP or a panel status update report for STxMP.

[0008] According to some aspects, the network entity sends control signaling with the above indication to the UE. The network entity optionally sends a downlink reference signal consistent with the relevant control signaling indication. The network entity receives the STxMP report as described above from the UE on the indicated uplink resources.

[0009] To accomplish the aforementioned and related purposes, one or more aspects correspond to the features described below and particularly pointed out in the claims. One or more aspects can be implemented by any of an apparatus, a method, a component for performing the method, and / or a non-transitory computer-readable medium. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features indicate only a few of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A diagram showing a wireless communication system including multiple user equipments (UEs) and network entities communicating through one or more cells.

[0011] Figure 2A-2B A diagram showing simultaneous reception of downlinks from one or more Transmission Reception Points (TRPs).

[0012] Figure 3A-3B A diagram showing simultaneous transmission of multiple panels (STxMP) from a UE to one or more TRPs.

[0013] Figure 4A-4B Uplink transmissions based on the strongest beam or beams from the same panel of the UE are shown.

[0014] Figure 5 is the signaling diagram for network triggered beam reporting for STxMP.

[0015] Figure 6A-6B is the signaling diagram for UE triggered beam / panel reporting for STxMP.

[0016] Figure 7A-7Bis a signaling diagram illustrating a process of communicating based on uplink multiple-input multiple-output (MIMO) parameters after a UE panel state is changed.

[0017] Figure 8 is a flow chart of a method of wireless communication at a UE.

[0018] Fig. 9 is a flow chart of a method of wireless communication at a network entity.

[0019] Fig.10 is a diagram illustrating an example of a hardware implementation of an example UE equipment.

[0020] Fig.11 is a diagram illustrating an example of a hardware implementation of one or more example network entities. DETAILED DESCRIPTION

[0021] Figure 1 A diagram 100 of a wireless communication system associated with a plurality of cells 190 is shown. The wireless communication system includes a user equipment (UE) 102 and base stations 104, some of which 104c include a converged base station architecture, while other base stations 104a-104b include a decomposed base station architecture. The converged base station architecture includes a radio unit (RU) 106, a distributed unit (DU) 108, and a centralized unit (CU) 110, which are configured to utilize a radio protocol stack physically or logically integrated within a single radio access network (RAN) node. The decomposed base station architecture utilizes a protocol stack physically or logically distributed between two or more units (e.g., RU 106, DU 108, CU 110). For example, CU 110 is implemented within a RAN node, and one or more DUs 108 may be co-located with CU 110, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. DU 108 may be implemented to communicate with one or more RU 106. Each of the RU 106, DU 108, and CU 110 may be implemented as a virtual unit, such as a virtual radio unit (VRU), a virtual distributed unit (VDU), or a virtual central unit (VCU).

[0022] The operation and / or network design of the base station 104 can be based on the aggregated nature of the base station functions. For example, a decomposed base station architecture is utilized in an integrated access backhaul (IAB) network, an open radio access network (O-RAN) network, or a virtualized radio access network (vRAN), which may also be referred to as a cloud radio access network (C-RAN). Decomposition may include distributing functions between two or more units located at various physical locations, and virtually distributing the functions of at least one unit, which enables flexibility in network design. Various units of a decomposed base station architecture or a decomposed RAN architecture may be configured to communicate with at least one other unit in wired or wireless communication. For example, CU 110a communicates with DU 108a-108b via a corresponding midhaul link 162 based on an F1 interface. DU 108a-108b may communicate with RU 106a and RU106b-106c via corresponding fronthaul links 160, respectively. RU 106a-106c can communicate with corresponding UE 102a-102c and 102s via one or more radio frequency (RF) access links based on Uu interface. In an example, multiple RU 106 and / or base station 104 can provide services for UE 102 at the same time, such as the access link of RU 106a of cell 190a and the UE 102a of cell 190e served by base station 104c of cell 190e at the same time.

[0023] One or more CUs 110, such as CU 110a or CU 110d, may communicate directly with the core network 120 via a backhaul link 164. For example, CU 110d communicates with the core network 120 via a backhaul link 164 based on a next generation (NG) interface. One or more CUs 110 may also communicate indirectly with the core network 120 through one or more decomposed base station units, such as a near real-time RAN intelligent controller (RIC) 128 via an E2 link and a service management and orchestration (SMO) framework 116 that may be associated with a non-real-time RIC 118. The near real-time RIC 128 may communicate with the SMO framework 116 and / or the non-real-time RIC 118 via an A1 link. The SMO framework 116 and / or the non-real-time RIC 118 may also communicate with an open cloud (O-cloud) 130 via an O2 link. One or more CUs 110 may further communicate with each other via a backhaul link 164 based on an Xn interface. For example, the CU 110d of the base station 104c communicates with the CU 110a of the base station 104b via the backhaul link 164 based on the Xn interface. Similarly, the base station 104c of the cell 190e can communicate with the CU 110a of the base station 104b via the backhaul link 164 based on the Xn interface.

[0024] RU 106, DU 108 and CU 110 and near real-time RIC 128, non-real-time RIC 118 and / or SMO framework 116 may include (or may be coupled to) one or more interfaces configured to send or receive information / signals via a wired or wireless transmission medium. Base station 104 or any one of the one or more decomposed base station units may be configured to communicate with one or more other base stations 104 or one or more other decomposed base station units via a wired or wireless transmission medium. In an example, a processor, memory and / or controller associated with executable instructions of the interface may be configured to provide communication between base stations 104 and / or one or more decomposed base station units via a wired or wireless transmission medium. For example, a wired interface may be configured to send or receive information / signals via a wired transmission medium, such as a fronthaul link 160 between a RU 106d and a baseband unit (BBU) 112 for a cell 190d, or more specifically, a fronthaul link 160 between a RU 106d and a DU 108d. The BBU 112 includes the DU 108d and the CU 110d, which may also have a wired interface configured between the DU 108d and the CU 110d to send or receive information / signals between the DU 108d and the CU 110d based on the midhaul link 162. In a further example, a wireless interface, which may include a receiver, a transmitter, or a transceiver (such as an RF transceiver), may be configured to send or receive information / signals via a wireless transmission medium, such as information transmitted between the RU 106a of the cell 190a and the base station 104c of the cell 190e via cross-cell communication beams of the RU 106a and the base station 104c.

[0025] One or more high-level control functions (such as functions related to radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc.) can be hosted at CU 110. Each control function can be associated with an interface for transmitting signals based on one or more other control functions hosted at CU 110. User plane functions (such as central unit-user plane (CU-UP) functions), control plane functions (such as central unit-control plane (CU-CP) functions), or a combination thereof can be implemented based on CU 110. For example, CU 110 may include one or more CU-UP processes and / or one or more CU-CP processes. When implemented in an O-RAN configuration, the CU-UP function can be based on bidirectional communication with the CU-CP function via an interface (such as an E1 interface (not shown)).

[0026] The CU 110 may communicate with the DU 108 for network control and signal transmission. The DU 108 is a logical unit of the base station 104 that is configured to perform one or more base station functions. For example, the DU 108 may control the operation of one or more RUs 106. One or more of the following may be hosted at the DU 108: a radio link control (RLC) layer, a media access control (MAC) layer, or one or more higher physical (PHY) layers, such as forward error correction (FEC) modules for encoding / decoding, scrambling, modulation / demodulation, etc. The DU 108 may host such functions based on the functional division of the DU 108. The DU 108 may similarly host one or more lower PHY layers, where each lower layer or module may be implemented based on an interface for communicating with other layers and modules hosted at the DU 108, or based on a control function hosted at the CU 110.

[0027] The RU 106 may be configured to implement lower layer functions. For example, the RU 106 is controlled by the DU 108 and may correspond to a logical node hosting RF processing functions or lower layer PHY functions, such as performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc. The functions of the RU 106 may be based on functional partitioning, such as lower layer functional partitioning.

[0028] RU 106 can send or receive over-the-air (OTA) communications with one or more UEs 102. For example, RU 106b of cell 190b communicates with UE 102b of cell 190b via a first communication beam set 132 of RU 106b and a second communication beam set 134b of UE 102b, which may correspond to inter-cell communication beams or cross-cell communication beams. For example, UE 102b of cell 190b can communicate with RU 106a of cell 190a via a third communication beam set 134a of UE 102b and a RU beam set 136 of RU 106a. Both real-time and non-real-time features of control plane and user plane communications of RU 106 can be controlled by associated DU 108. Therefore, DU 108 and CU 110 can be used in a cloud-based RAN architecture (such as a vRAN architecture), and SMO framework 116 can be used to support non-virtualized and virtualized RAN network elements. For non-virtualized network elements, the SMO framework 116 may support deployment of dedicated physical resources for RAN coverage, where the dedicated physical resources may be managed through an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 116 may interact with a cloud computing platform (such as O-cloud 130) via an O2 link (e.g., a cloud computing platform interface) to manage the network elements. Virtualized network elements may include, but are not limited to, RU 106, DU 108, CU 110, near real-time RIC 128, and the like.

[0029] The SMO framework 116 may be configured to communicate directly with one or more RUs 106 using an O1 link. The non-real-time RIC 118 of the SMO framework 116 may also be configured to support the functionality of the SMO framework 116. For example, the non-real-time RIC 118 implements logic functions that are capable of controlling non-real-time RAN features and resources, features / applications of the near real-time RIC 128, and / or artificial intelligence / machine learning (AI / ML) processes. The non-real-time RIC 118 may communicate (or couple) with the near real-time RIC 128, such as through an A1 interface. The near real-time RIC 128 may implement logic functions that are capable of controlling near real-time RAN features and resources based on data collection and interaction through an E2 interface (such as an E2 interface between the near real-time RIC 128 and the CU 110a and the DU 108b).

[0030] The non-real-time RIC 118 may receive parameters or other information from an external server to generate an AI / ML model for deployment in the near-real-time RIC 128. For example, the non-real-time RIC 118 receives parameters or other information from the O-cloud 130 via the O2 link to deploy the AI / ML model to the real-time RIC 128 via the A1 link. The near-real-time RIC 128 may utilize the parameters and / or other information received from the non-real-time RIC 118 or the SMO framework 116 via the A1 link to perform near-real-time functions. The near-real-time RIC 128 and the non-real-time RIC 115 may be configured to adjust the performance of the RAN. For example, the non-real-time RIC 116 monitors patterns and long-term trends to improve the performance of the RAN. The non-real-time RIC 116 may also deploy the AI / ML model through the SMO framework 116 for implementing corrective actions, such as initiating reconfiguration of the O1 link or instructing the management process of the A1 link.

[0031] Any combination of RU 106, DU 108, and CU 110, or any reference thereto alone, may correspond to base station 104. Thus, base station 104 may include at least one of RU 106, DU 108, or CU 110. Base station 104 provides UE 102 with access to core network 120. That is, base station 104 may relay communications between UE 102 and core network 120. Base station 104 may be associated with a macro cell of a high-power cellular base station and / or a small cell of a low-power cellular base station. For example, cell 190e corresponds to a macro cell, and cells 190a-190d may correspond to a small cell. Small cells include femto cells, pico cells, micro cells, and the like. A cell structure including at least one macro cell and at least one small cell may be referred to as a "heterogeneous network."

[0032] Transmissions from the UE 102 to the base station 104 / RU 106 are referred to as uplink (UL) transmissions, while transmissions from the base station 104 / RU 106 to the UE 102 are referred to as downlink (DL) transmissions. Uplink transmissions may also be referred to as reverse link transmissions, while downlink transmissions may also be referred to as forward link transmissions. For example, the RU 106 d utilizes an antenna of the base station 104 c of the cell 190 d to send downlink / forward link communications to the UE 102 d, or receive uplink / reverse link communications from the UE 102 d, based on a Uu interface associated with an access link between the UE 102 d and the base station 104 c / RU 106 d.

[0033] The communication link between UE 102 and base station 104 / RU 106 can be based on multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link can be associated with one or more carriers. UE 102 and base station 104 / RU 106 can utilize Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.) spectrum bandwidth allocated per carrier in up to a total of Yx MHz carrier aggregation, where x component carriers (CCs) are used for communication in each direction of the uplink direction and the downlink direction. The carriers may be adjacent to each other along the spectrum, or may not be adjacent to each other. In an example, uplink carriers and downlink carriers may be allocated in an asymmetric manner, and more or fewer carriers may be allocated for uplink or downlink. A component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be associated with a primary cell (PCell), and the secondary component carrier may be associated with a secondary cell (SCell).

[0034] Some UEs 102 (such as UE 102a and UE 102s) can perform device-to-device (D2D) communication via a side link. For example, the side link communication / D2D link utilizes the spectrum of a wireless wide area network (WWAN) associated with uplink communication and downlink communication. The side link communication / D2D link can also use one or more side link channels, such as a physical side link broadcast channel (PSBCH), a physical side link discovery channel (PSDCH), a physical side link shared channel (PSSCH) and / or a physical side link control channel (PSCCH) to transmit information between UE 102a and 102s. Such side link / D2D communication can be performed by various wireless communication systems, such as wireless fidelity (Wi-Fi) systems, Bluetooth systems, long term evolution (LTE) systems, new radio (NR) systems, etc.

[0035] The electromagnetic spectrum is typically subdivided into different categories, bands, channels, etc. based on different frequencies / wavelengths associated with the electromagnetic spectrum. The fifth generation (5G) NR is typically associated with two operating bands, referred to as frequency range 1 (FR1) and frequency range 2 (FR2). FR1 ranges from 410MHz–7.125GHz, and FR2 ranges from 24.25GHz–52.6GHz. Although a portion of FR1 is actually greater than 6GHz, FR1 is typically referred to as the “below 6GHz” band. In contrast, FR2 is typically referred to as the “millimeter wave” (mmW) band. FR2 is different from the “extremely high frequency” (EHF) band, but is an approximate subset of that band, the EHF band ranges from 30GHz–300GHz, and is sometimes also referred to as the “millimeter wave” band. The frequencies between FR1 and FR2 are typically referred to as “mid-band” frequencies. The operating band of mid-band frequencies may be referred to as frequency range 3 (FR3), which ranges from 7.125GHz–24.25GHz. The frequency bands within FR3 may include the characteristics of FR1 and / or FR2. Therefore, the characteristics of FR1 and / or FR2 may be extended to mid-band frequencies. Higher operating bands have been identified to extend 5G NR communications above the 52.6 GHz associated with the upper limit of FR2. Three of these higher operating bands include FR2-2 (ranging from 52.6 GHz–71 GHz), FR4 (ranging from 71 GHz–114.25 GHz), and FR5 (ranging from 114.25 GHz–300 GHz). The upper limit of FR5 corresponds to the upper limit of the EHF band. Therefore, unless otherwise expressly stated herein, the term “below 6 GHz” may refer to frequencies less than 6 GHz, frequencies within FR1, or frequencies that may include mid-band frequencies. Further, unless otherwise expressly stated herein, the term “millimeter wave” or mmW refers to frequencies that may include mid-band frequencies, frequencies that may be within FR2, FR4, FR2-2, and / or FR5, or frequencies that may be within the EHF band.

[0036] UE 102 and base station 104 / RU 106 may each include multiple antennas. Multiple antennas may correspond to antenna elements, antenna panels, and / or antenna arrays that may facilitate beamforming operations. For example, RU 106b transmits a downlink beamformed signal to UE 102b based on a first beam set 132 in one or more transmit directions of RU 106b. UE 102b may receive a downlink beamformed signal from RU 106b based on a second beam set 134b in one or more receive directions of UE 102b. In a further example, UE 102b may also transmit an uplink beamformed signal to RU 106b based on a second beam set 134b in one or more transmit directions of UE 102b. RU 106b may receive an uplink beamformed signal from UE 102b in one or more receive directions of RU 106b. UE 102b may perform beam training to determine the optimal receive and transmit directions for beamformed signals. The transmit and receive directions of the UE 102 and the base station 104 / RU 106 may be the same, or may be different. In a further example, a beamformed signal may be transmitted between the first base station 104c and the second base station 104b. For example, the RU 106a of the cell 190a may transmit a beamformed signal to the base station 104c of the cell 190e based on the RU beam set 136 in one or more transmit directions of the RU 106a. The base station 104c of the cell 190e may receive a beamformed signal from the RU 106a based on the base station beam set 138 in one or more receive directions of the base station 104c. Similarly, the base station 104c of the cell 190e may transmit a beamformed signal to the RU 106a based on the base station beam set 138 in one or more transmit directions of the base station 104c. The RU 106a may receive a beamformed signal from the base station 104c of the cell 190e based on the RU beam set 136 in one or more receive directions of the RU 106a.

[0037] The base station 104 may include and / or be referred to as a next generation evolved Node B (ng-eNB), a generation NB (gNB), an evolved NB (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), a network node, a network entity, a network device, or other related terms. The base station 104 or an entity at the base station 104 may be implemented as an IAB node, a relay node, a side link node, a converged (monolithic) base station having a RU 106 and a BBU including a DU 108 and a CU 110, or as a decomposed base station 104b including one or more of the RU 106, the DU 108, and / or the CU 110. The set of converged or decomposed base stations 104a-104c may be referred to as a next generation radio access network (NG-RAN).

[0038] The core network 120 may include an access and mobility management function (AMF) 121, a session management function (SMF) 122, a user plane function (UPF) 123, a unified data management (UDM) 124, a gateway mobile location center (GMLC) 125, and / or a location management function (LMF) 126. The core network 120 may also include one or more location servers (which may include GMLC 125 and LMF 126), as well as other functional entities. For example, the one or more location servers include one or more location / positioning servers, and in addition to one or more of a positioning determination entity (PDE), a serving mobile location center (SMLC), a mobile positioning center (MPC), etc., the one or more location / positioning servers may also include GMLC 125 and LMF 126.

[0039] AMF 121 is a control node that handles signal transmission between UE 102 and core network 120. AMF 121 supports registration management, connection management, mobility management, and other functions. SMF 122 supports session management and other functions. UPF 123 supports packet routing, packet forwarding, and other functions. UDM 124 supports the generation of authentication and key agreement (AKA) credentials, user identity handling, access authorization, and subscription management. GMLC 125 provides an interface for clients / applications (e.g., emergency services) to access UE positioning information. LMF 126 receives measurement and assistance information from NG-RAN and UE 102 via AMF 121 to calculate the positioning of UE 102. NG-RAN can use one or more positioning methods to determine the location of UE 102. Positioning UE 102 can involve signal measurement, positioning estimation, and optional speed calculation based on measurement. Signal measurement can be performed by UE 102 and / or serving base station 104 / RU 106.

[0040] The transmitted signal may also be based on one or more of the satellite positioning systems (SPS) 114, such as signals measured for positioning. In an example, the SPS 114 of the cell 190c may communicate with one or more UEs 102 (such as UE 102c) and one or more base stations 104 / RU 106 (such as RU 106c). The SPS 114 may correspond to one or more of the global navigation satellite system (GNSS), the global positioning system (GPS), the non-terrestrial network (NTN), or other satellite positioning / position systems. The SPS 114 may be associated with LTE signals, NR signals (e.g., based on round trip time (RTT) and / or multiple RTT), wireless local area network (WLAN) signals, ground beacon systems (TBS), sensor-based information, NR enhanced cell ID (NR E-CID) technology, downlink departure angle (DL-AoD), downlink arrival time difference (DL-TDOA), uplink arrival time difference (UL-TDOA), uplink arrival angle (UL-AoA) and / or other systems, signals or sensors.

[0041] UE 102 may be configured as a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, a GPS, a multimedia device, a video device, a digital audio player (e.g., a Moving Picture Experts Group (MPEG) Audio Layer 3 (MP3) player), a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, a utility meter, a gas pump, a home appliance, a healthcare device, a sensor / actuator, a display, or any other device with similar functionality. Some of UE 102 may be referred to as Internet of Things (IoT) devices, such as parking meters, gas pumps, home appliances, vehicles, healthcare equipment, etc. UE 102 may also be referred to as a station (STA), a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handheld device, a mobile client, a client, or other similar terms. The term UE may also apply to a roadside unit (RSU), which may communicate with other RSU UEs, non-RSU UEs, the base station 104, and / or entities at the base station 104, such as the RU 106.

[0042] Still refer to Figure 1In certain aspects, the UE 102 may include a multi-panel simultaneous transmission (STxMP) component 140 configured to receive control signaling for sending a report associated with STxMP from a network entity, wherein the control signaling indicates at least one of: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for sending the report, or uplink resources for sending the report; and based on a trigger condition, send the report in accordance with the control signaling to the network entity, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

[0043] In certain aspects, the base station 104 or a network entity of the base station 104 may include a report configuration component 150 configured to send control signaling to the UE for receiving a report associated with the UE's STxMP, wherein the control signaling indicates at least one of: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for receiving the report, or uplink resources for receiving the report; and based on a trigger condition, receive the report from the UE in compliance with the control signaling, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

[0044] therefore, Figure 1 A wireless communication system is described that can incorporate aspects of one or more of the other figures described herein (such as Figure 2A-Figure 7B Further, although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar fields, such as 5G-Advanced and future versions, LTE, LTE-Advanced (LTE-A), and other wireless technologies.

[0045] Figure 2A-2B Graphs 200-250 of simultaneous reception of downlinks from one or more TRPs (e.g., base stations 104a-104b) are shown. The cell radius / coverage area of ​​the base stations 104a-104b may be based on a link budget. "Link budget" refers to the accumulation of total gains and losses in the system, which provides a received signal level at a receiver such as UE 102b. The receiver can compare the received signal level to the receiver sensitivity to determine whether the channel provides at least a minimum signal strength for signals transmitted between the receiver and the transmitter (e.g., UE 102b and base stations 104a-104b).

[0046] In order to increase the link budget, the base station 104a-104b and the UE 102b may perform analog beamforming operations to activate beam pairs associated with increased signal strength. Both the base station 104a-104b and the UE 102b may maintain multiple beams that can be used for the beam pairs. The beam pairs that reduce coupling loss may result in increased coverage gain for the base station 104a-104b and the UE 102b. "Coupling loss" refers to the reduction in path loss / power density between the first antenna of the base station 104a-104b and the second antenna of the UE 102b, and can be indicated in decibels (dB). The beam selection process for the beam pairs activated by the base station 104a-104b and the UE 102b may be associated with one or more of a beam measurement operation, a beam measurement report, or a beam indication process.

[0047] The first type of beam reporting may correspond to non-group-based beam reporting, where the base station 104a-104b can configure the UE 102b to measure and report the layer 1 reference signal received power (L1-RSRP) or the layer 1 signal to interference plus noise ratio (L1-SINR) of the downlink reference signal set from the base station 104a-104b. The downlink reference signal may correspond to a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), etc. The UE 102b may report the L1-RSRP or L1-SINR for up to 4 SSBs or 4 CSI-RS in each beam reporting instance. The second type of beam reporting may correspond to group-based beam reporting, where the base station 104a-104b can configure the UE 102b to measure and report the L1-RSRP or L1-SINR for multiple groups of SSBs or CSI-RS. Each beam group may include 2 SSBs or 2 CSI-RS that the UE 102 can receive simultaneously.

[0048] UE 102b can use two different panels to simultaneously receive two downlink beams from one or more TRPs (e.g., base stations 104a-104b). For example, UE 102b can receive two downlink beams from one or more TRPs, as shown in Figures 200-250. That is, such as when the downlink beam / signal reflects around an object, UE 102b can receive a first downlink beam of the strongest channel cluster associated with base station 104b and a second downlink beam of the second strongest channel cluster associated with the same base station 104b, as shown in Figure 200. Alternatively, UE 102b can receive a first downlink beam of the strongest channel cluster (e.g., associated with the first base station 104b) and a second downlink beam of the second strongest channel cluster (e.g., associated with the second base station 104a), as shown in Figure 250. In either case, after receiving two downlink beams from one or more TRPs, UE 102b generates a beam report and sends the beam report to one or more TRPs, so that one or more TRPs (e.g., base stations 104a-104b) can send control signaling to UE 102b for beam indication.

[0049] The base stations 104a-104b may indicate a transmission configuration indicator (TCI) state to the UE 102b via downlink signaling. For example, the base stations 104a-104b may indicate TCI update signaling via a media access control-control element (MAC-CE) or downlink control information (DCI). "TCI state" refers to a set of parameters used to configure a quasi-co-location (QCL) relationship between one or more downlink reference signals and corresponding antenna ports. For example, a TCI state may indicate a QCL relationship between a downlink reference signal in a channel state information-reference signal (CSI-RS) set and a physical downlink shared channel (PDSCH) demodulation reference signal (DMRS) port. Due to the antenna reciprocity theorem, a single TCI state may provide beam indications for both downlink channels / signals and uplink channels / signals.

[0050] Beam indication techniques based on TCI signaling may include joint beam indication or separate beam indication. "Joint beam indication" refers to a single / joint TCI state for updating the beams of both the downlink channel / signal and the uplink channel / signal. For example, the base station 104a-104b may indicate a single / joint TCI state configured based on the DLorJointTCIState parameter in the downlink TCI signaling to update the beams of both the downlink channel / signal and the uplink channel / signal. For TCI signaling based on the joint TCI state, the base station 104a-104b may send SSB or CSI-RS to indicate the QCL relationship between the downlink channels / signals and the spatial relationship of the uplink channels / signals. In the first aspect, the TCI update signaling sent may correspond to a joint beam indication for both the downlink channel / signal and the uplink channel / signal.

[0051] "Separate beam indication" refers to a first TCI state for updating a first beam of a downlink channel / signal and a second TCI state for updating a second beam of an uplink channel / signal. For example, the base station 104a-104b may indicate a first TCI state configured based on a DLorJointTCIState parameter in downlink TCI signaling to update a first beam of a downlink channel / signal, and may indicate a second TCI state configured based on a UL-TCIState parameter in further downlink TCI signaling to update a second beam of an uplink channel / signal. If the base station 104a-104b indicates a second TCI state (e.g., uplink TCI), the downlink reference signal may correspond to an SSB, a CSI-RS, etc. In an example in which the second TCI state indicates an uplink reference signal (e.g., uplink TCI), the uplink reference signal may correspond to a sounding reference signal (SRS), which may indicate a spatial relationship of the uplink channel / signal. In a second aspect, the transmitted TCI update signaling may correspond to a downlink channel / signal or an uplink channel / signal based on separate beam indication techniques.

[0052] The base station 104a-104b may configure the QCL type and / or source reference signal for QCL signaling. The QCL type of the downlink reference signal may be based on a higher layer parameter, such as the qcl-Type in the QCL-Info parameter. The first QCL type corresponding to type A may be associated with Doppler shift, Doppler spread, average delay and / or delay spread. The second QCL type corresponding to type B may be associated with Doppler shift and / or Doppler spread. The third QCL type corresponding to type C may be associated with Doppler shift and / or average delay. The fourth QCL type corresponding to type D may be associated with a spatial reception (Rx) parameter. The UE 102b may indicate a spatial relationship using the same spatial transmission filter used when receiving a downlink reference signal or sending an uplink reference signal from the base station 104a-104b. The sent TCI update signaling updates the TCI state of the channel of the component carrier (CC) that shares the TCI state indicated in the TCI update signaling. The CC may be associated with a cell included in the cell list. The cell list is configured via RRC signaling, which may indicate parameters such as a simultaneousTCI-UpdateList1 parameter, a simultaneousTCI-UpdateList2 parameter, a simultaneousTCI-UpdateList3 parameter, or a simultaneousTCI-UpdateList4 parameter.

[0053] The signaling communicated between the base stations 104a-104b and the UE 102b may be dedicated signaling or non-dedicated signaling. "Dedicated signaling" refers to UE-specific signaling between the base stations 104a-104b and the UE 102b. For example, dedicated signaling may correspond to a physical downlink control channel (PDCCH), a PDSCH, a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH) associated with a list of cells sharing the indicated TCI state. The PUSCH / PUCCH configured based on uplink grants in RRC signaling from the base stations 104a-104b, triggered by DCI at the UE 102b, activated based on MAC-CE, or is a dedicated signal.

[0054] "Non-dedicated signaling" refers to signaling between base stations 104a-104b and non-specific UEs. For example, non-dedicated signaling may correspond to a physical broadcast channel (PBCH), PDCCH / PDSCH transmissions for non-specific UEs from base stations 104a-104b, non-periodic CSI-RS, or SRS for codebook, non-codebook, or antenna switching. The PDCCH in the control resource set (CORESET) associated with type 0 / 0A / 0B / 1 / 2 common search space and the PDSCH scheduled by such PDCCH are non-dedicated signals. However, other PDCCH and PDSCH signaling may be dedicated signals. The search space type may be defined based on a standardized protocol.

[0055] Figure 2A-2B describes simultaneous reception by UE 102b on downlink resources, while Figure 3A-3B Simultaneous transmissions by UE 102b on uplink resources are described.

[0056] Figure 3A-3B Graphs 300-350 of STxMP of UE 102b to one or more TRPs (e.g., one or more base stations 104a-104b) are shown. UE 102b may include multiple transmission panels from which one or more TRPs / base stations 104a-104b may schedule UE 102b to transmit multiple uplink beams simultaneously. For example, base station 104b may schedule UE 102b to transmit two uplink beams from different transmission panels of UE 102b, such that UE 102b may transmit a first uplink signal to base station 104b using a first set of layers or a first set of resource blocks (RBs), and simultaneously transmit a second uplink signal to the same base station 104b using a second set of layers or a second set of RBs, as shown in graph 300. In the example, the uplink beams / signals may reflect around objects before being received by base station 104b. Alternatively, multiple base stations 104a-104b can schedule UE 102b to send two uplink beams from different transmission panels of UE 102b, so that UE 102b can send a first uplink signal to the first base station 104b using a first layer set or a first RB set, and simultaneously send a second uplink signal to the second base station 104a using a second layer set or a second RB set, as shown in Figure 350.

[0057] The uplink signals simultaneously sent by the UE 102b to one or more base stations 104a-104b with different beams / panels may be multiplexed based on spatial domain multiplexing (SDM) or frequency domain multiplexing (FDM). The network may receive uplink signals associated with different beams / panels via one TRP (e.g., base station 104b) or multiple TRPs (e.g., base stations 104a-104b), as shown in Figures 300-350. One or more base stations 104a-104b may indicate two TCI states to the UE 102b and schedule STxMP based on the SDM technique. For example, the two TCI states may be applied to different demodulation reference signal (DMRS) ports and different layers. In other examples, one or more base stations 104a-104b may indicate two TCI states to the UE 102b and schedule STxMP based on the FDM technique, wherein the two TCI states may be applied to different RB sets. Although Figure 2A-2B and Figure 3A-3B The STxMP of UE 102b with antenna reciprocity is shown, but Figure 4A-4B One or more transmissions from a single panel of UE 102b are shown.

[0058] Figure 4A-4B An uplink transmission based on one or more strongest beams from the same panel of UE 102b is shown. Although UE 102b may include multiple uplink transmission panels, repeatedly activating multiple uplink transmission panels for STxMP may increase power consumption at UE 102b. In some cases, UE 102b may not obtain significant communication benefits by activating multiple uplink panels at the same time. For example, if UE 102b is near the center of a cell with a single strong channel cluster associated with a first base station 104b, as shown in Figure 400, the uplink beam of UE 102b may not have enough signal strength due to different channel clusters associated with a second base station 104a that is farther away from UE 102b. Therefore, in this example, any throughput benefits of communicating with the second base station 104a are negligible and are not enough to be a reason to activate the second panel.

[0059] In a further example, if multiple uplink beams (e.g., the strongest / second strongest beams) have sufficient signal strength for the same channel cluster of the first base station 104b, as shown in diagram 450, the multiple uplink beams may be associated with the same physical uplink transmission panel at UE 102b, rather than being associated with a different physical uplink transmission panel for each beam. Therefore, activating multiple panels may result in reduced power efficiency at UE 102b because the second panel at UE 102b may not be used for uplink transmission. Repeatedly activating and deactivating multiple physical uplink panels at UE 102b may also cause the panels to overheat and degrade the performance of UE 102b.

[0060] One or more base stations 104a-104b may have to be aware of panel state changes (e.g., activation / deactivation) at UE 102b because the panel state change may affect TCI state assignments from the base station (e.g., if only one panel is active, UE 102b cannot transmit two beams simultaneously) and / or precoder selection (e.g., UE 102b cannot transmit uplink signals from more layers than the layers associated with the activated panel). Although one or more base stations 104a-104b may trigger beam reporting without receiving panel information from UE 102b, the timing of the triggering may not be appropriate for STxMP. For example, without panel state information, one or more base stations 104a-104b may not have information to configure appropriate timing for beam reporting periodicity and time slot offsets for beam reporting (e.g., based on UE panel state changes). Therefore, UE-triggered beam reporting and / or network-triggered beam reporting of UE panel information and / or control signaling for indicating a downlink precoder associated with a panel status change at the UE 102b may improve the STxMP technique. Figure 2A-Figure 4B Physical transmissions from one or more panels of UE 102b are shown, with FIG. 4 focusing on situations where simultaneous multi-panel transmissions may be problematic. Figure 5 and Figure 6A-6B A reporting procedure for physical transmission to support UE to report various types of situations in a timely manner is shown.

[0061] Figure 5500 is a signaling diagram for network triggered beam reporting for STxMP. In some examples, the UE 102 may send 502 a UE capability report to the network entity 104, the UE capability report indicating the UE capability for generating / sending the network triggered beam report for STxMP. The one or more UE capabilities may correspond to a first maximum number of SSB / CSI-RS resources configured for STxMP beam reporting, a second maximum number of SSB / CSI-RS resources in a time slot for beam reporting for STxMP, a third maximum number of active transmit (Tx) panels at the UE 102, and the number of antenna ports per Tx panel. The one or more UE capabilities may be counted by CC, by band, by band combination, or by UE. The one or more UE capabilities may be reported / sent 502 by feature set, by band, by band combination, or by UE. The network entity 104 may receive the one or more UE capabilities in the UE capability report, or receive the one or more UE capabilities from a core network entity (such as an AMF). In another example, the network entity 104 may receive one or more UE capabilities from a second non-core network entity, such as a second base station via a backhaul link.

[0062] The network entity 104 may send 504 control signaling for a beam report for STxMP to the UE 102, wherein the beam report may be based on a measurement of one or more downlink reference signals at the UE 102 and indicate a reported amount of uplink beams for STxMP. Alternatively, the network entity 104 may send 504 control signaling to the UE 102 via a non-core network entity (such as, via a base station of a backhaul link). An uplink panel or UE Tx panel as used herein refers to a UE antenna panel for uplink transmission. One or more transmission-related components (e.g., a power amplifier) ​​associated with the uplink panel may be used to turn on / off the uplink panel. In some implementations, the UE 102 may receive downlink signaling in the panel, while in other implementations, the UE 102 may not receive downlink signaling in the panel.

[0063] The network entity 104 may configure one or more parameters for beam reporting for STxMP via RRC signaling (e.g., via CSI-ReportConfig). The RRC signaling may indicate an RRC reconfiguration message from the network entity 104 to the UE 102, or a system information block (SIB) sent from the network entity 104 to the UE 102, where the SIB may be a predefined SIB (e.g., SIB1) or a different SIB (e.g., SIBJ, where J corresponds to an integer greater than 21). The network entity 104 may configure S (e.g., S=2) sets of downlink reference signals (e.g., SSB / CSI-RS) for beam reporting for STxMP, uplink resources for beam reporting, the number of beam groups reported, and / or the reported amount of uplink beams for STxMP in a reporting configuration (e.g., CSI-ReportConfig). In some implementations, the network entity 104 sends the RRC reconfiguration message to the UE 102 via a signaling radio bearer (SRB) (e.g., SRB1). In other implementations, the network entity 104 sends the RRC reconfiguration message to the UE 102 via a non-core network entity (such as a base station via a backhaul link).

[0064] The RRC signaling may indicate one or more of: a flag to enable beam reporting for STxMP (e.g., type2-groupBasedBeamReporting), S (e.g., S=2) SSB / CSI-RS resource sets for beam reporting for STxMP, a maximum of S (e.g., S=2) interference measurement resource (IMR) sets, the number of reported beam groups, or the amount of reports associated with the beams used for STxMP, which may cause the UE 102 to report Tx panel information in addition to reporting the beam index and / or beam quality (e.g., L1-RSRP or L1-SINR). Other RRC parameters may include nrofReportedGroups for indicating the number of reported beam groups, reportQuantity for indicating the reporting quantity, csi-SSB-ResourceSetListExt for configuring a second SSB set for channel measurement, csi-CSI-RS-ResourceSetListExt for configuring a second non-zero power (NZP) IMR or NZP CSI-RS set for channel measurement, csi-IM-ResourceSetListExt for configuring a second zero power (ZP) IMR set, and type2GroupBasedBeamReporting for enabling beam reporting for STxMP.

[0065] The network entity 104 may send 506 a MAC-CE to the UE 102 to trigger semi-persistent beam reporting for STxMP, or send 506 a DCI to the UE 102 to trigger aperiodic beam reporting for STxMP. In a further example, the UE 102 may send periodic beam reporting for STxMP based on a periodicity and slot offset configured by the network entity 104 via RRC signaling (not shown). After the UE 102 receives 504 control signaling to configure and possibly trigger beam reporting for STxMP, or optionally receives 506 a MAC-CE / DCI (or possibly an RRC message) to trigger beam reporting for STxMP, the UE 102 may receive 508 and measure 510 one or more downlink reference signals using an active UE panel.

[0066] The one or more downlink reference signals received 508 by the UE 102 from the network entity 104 may cause the UE 102 to activate one or more UE panels and determine at least one set of network beams to be applied to the one or more downlink reference signals, which the UE 102 may use to pair with uplink signal transmissions. The UE 102 may report Tx panel information to the network entity 104 using the configured uplink resources for each set of downlink reference signals.

[0067] The UE 102 sends 516 a beam report for STxMP to the network entity 104, the beam report including at least one group of beams indicated by downlink reference signal indices (the UE 102 may simultaneously send uplink signals for these beams), corresponding beam qualities, and UE panel related information. The UE 102 may report M groups of beams in the beam report sent 516 to the network entity 104, where M may be predefined (e.g., M=1) or configured by the network entity 104 through RRC signaling (such as, control signaling sent 504). For each group of beams, the UE 102 may report N downlink reference signal indices (e.g., N SSB resource indicators (SSBRIs) or CSI-RS resource indicators (CRIs)). The value of N may be predefined to correspond to the same value as the number of downlink reference signal sets for beam reporting for STxMP, where each downlink reference signal is selected from a downlink reference signal set configured by the network entity 104 through RRC signaling. If the CSI-RS resources in a CSI-RS resource set correspond to the same port (for example, the RRC parameter repetition of the CSI-RS resource set is "on"), the UE 102 may not repeatedly report the downlink reference signal index of the CSI-RS resource set based on the CSI-RS beam report to the network entity 104.

[0068] UE 102 may also report the L1-RSRP or L1-SINR of each downlink reference signal for each group of beams using the reported downlink reference signal index. In a further example, UE 102 reports UE Tx panel information for N downlink reference signals within each group of beams. UE 102 may report whether the N downlink reference signals correspond to the same UE Tx panel or the same UE Tx beam. In other examples, UE 102 reports the first maximum number of uplink transmission layers, the second maximum number of PUSCH antenna ports for the N downlink reference signals, or the third maximum number of SRS resource sets for simultaneous transmission in a beam report sent 516 to network entity 104. If the N downlink reference signals correspond to one UE Tx panel, UE 102 may report to network entity 104 that the first maximum number of uplink transmission layers or the second maximum number of PUSCH antenna ports is equal to 2. If N downlink reference signals correspond to N UE Tx panels, UE 102 may report a first maximum number of uplink transmission layers or a maximum number of PUSCH antenna ports equal to 2N.

[0069] For each set of beams, the UE 102 may further report a downlink reference signal resource set indicator to the network entity 104. That is, the UE 102 may indicate the resource set index of the downlink reference signal with the strongest L1-RSRP or the strongest L1-SINR. The UE 102 may indicate the absolute L1-RSRP or the absolute L1-SINR of the strongest downlink reference signal. The UE 102 may report a differential L1-RSRP or a differential L1-SINR, where the reported L1-RSRP or L1-SINR of the strongest downlink reference signal serves as a reference for other reported downlink reference signals. Figure 5 shows the network-triggered reporting process for STxMP, while Figure 6A-6B The UE-triggered reporting procedure for STxMP is shown.

[0070] Figure 6A-6B 600-650 are signaling diagrams for UE-triggered beam / panel reporting for STxMP. Specifically, signaling diagram 600 shows UE-triggered beam reporting, while signaling diagram 650 shows UE-triggered panel state change / update reporting (e.g., reporting indicating an activated / deactivated panel at UE 102).

[0071] The UE 102 may send 602 a UE capability report to the network entity 104 indicating the UE capability for generating / sending UE triggered beam / panel reports for STxMP to the network entity 104. The one or more UE capabilities may correspond to support for an inhibit timer for sending of UE triggered reports, a maximum duration of an inhibit timer for UE triggered reports (if supported), a maximum number of downlink reference signals supported for trigger condition detection, a maximum number of reported downlink reference signal groups supported in UE triggered aperiodic reports, etc. The one or more UE capabilities may be counted per CC, per frequency band, per frequency band combination, or per UE. The one or more UE capabilities may be reported / sent 602 per feature set, per frequency band, per frequency band combination, or per UE. As described with respect to sending 502, the one or more UE capabilities may be sent to the network entity 104 from various sources.

[0072] The network entity 104 may send 604 to the UE 102 a UE-triggered report for STxMP (eg, Fig. 6A Beam report in or Figure 6B For example, the network entity 104 sends 604 control signaling to the UE 102 via an SRB (e.g., SRB1). In another example, the network entity 104 sends 604 control signaling to the UE 102 via a non-core network entity (such as, via a base station of a backhaul link). The control signaling sent 604 to the UE 102 may indicate at least one of an inhibit timer (activation and duration) and / or uplink resources for sending UE-triggered reports. The network entity 104 may configure the duration of the inhibit timer for UE-triggered beam / panel reporting via RRC signaling. The network entity 104 may also configure a dedicated scheduling request for the UE 102 to request 612 / 652 uplink resources for sending 616 / 656 UE-triggered beam / panel reporting, or a threshold criterion for the UE 102 to trigger 610 / 611 aperiodic beam / panel reporting for STxMP (e.g., based on support indicated by one or more UE capabilities). If the network entity 104 does not configure a scheduling request, the UE 102 may request 612 / 652 uplink resources based on a scheduling request configured for other communications, such as for a contention-based random access (CBRA) procedure.

[0073] The network entity 104 may configure X dedicated scheduling requests, where each scheduling request corresponds to a serving cell or a serving cell group. The value of X may be the same as the number of configured serving cells or serving cell groups. The UE 102 may send 612 / 652 a corresponding scheduling request for a serving cell or a serving cell group, which triggers a beam / panel report from the UE 102. The network entity 104 may configure one scheduling request for each UE 102, so that in the UE-triggered beam / panel report, the UE 102 may report a serving cell or serving cell group index to indicate the target serving cell or target serving cell group for the beam / panel report.

[0074] After the UE 102 receives 604 the initial configuration of the duration of the inhibit timer for the UE-triggered beam / panel report, the UE 102 may start the inhibit timer. The UE 102 may also start (or restart) the inhibit timer after sending 616 / 656 the UE-triggered beam / panel report. As another example, after the UE 102 receives 618 / 658 an acknowledgment (ACK) for the UE-triggered beam / panel report from the network entity 104, the UE 102 may start / reset the inhibit timer.

[0075] After receiving 604 the control signaling from the network entity 104, the UE 102 and the network entity 104 may perform 606 a network-triggered reporting procedure for STxMP, such as Figure 5 . Referring to signaling diagram 600, network entity 104 sends 608 one or more downlink reference signals indicated by network entity 104 in previously sent 604 control signaling. UE 102 may measure one or more downlink reference signals for trigger condition detection, thereby triggering aperiodic beam reporting. In some examples, one or more downlink reference signals received / measured by UE 102 may be associated with the latest TCI indication (e.g., uplink beam indication) of an uplink channel for STxMP. If UE 102 determines 610 that the conditions for UE-triggered beam reporting are met based on one or more downlink reference signals received 608 from network entity 104, UE 102 may send 612 a scheduling request for beam reporting for STxMP to network entity 104. Based on receiving 614 an uplink grant for beam reporting from network entity 104, UE 102 sends 616 a beam report for STxMP to network entity 104.

[0076] UE 102 may also be configured to send 616 a UE-triggered beam report after the prohibition timer expires. In a further example, in the case where UE 102 determines to turn off / deactivate one of the Tx active panels, UE 102 may send 616 a UE-triggered beam report. This may occur due to overheating or power saving at UE 102. UE 102 may also be able to turn on / activate at least one inactive Tx panel to improve uplink performance, which may also trigger a UE-triggered beam report. The beam quality (e.g., L1-RSRP or L1-SINR) of the UE panel corresponding to at least one downlink reference signal in the downlink reference signal may be less than a threshold, where the threshold may be predefined or configured based on RRC signaling. The minimum, average or maximum beam quality (e.g., L1-RSRP or L1-SINR) of the downlink reference signal within the group measured via different UE Tx panels may be greater than the minimum, average or maximum beam quality in the latest beam report plus a first offset, where the first offset may be predefined or configured based on RRC signaling. The downlink reference signal received 608 at the UE 102 may correspond to the latest beam report for STxMP or the latest TCI indication for the uplink channel for STxMP. After sending 616 the beam report for STxMP, the UE 102 may receive 618 an ACK for the beam report for STxMP in an ACK / NACK feedback from the network entity 104.

[0077] Referring to the signaling diagram 650, after the UE 102 receives 604 control signaling from the network entity 104 and optionally performs 606 a network triggered reporting procedure for STxMP with the network entity 104, the UE 102 may determine 611 that a condition for a UE triggered panel status report is met (e.g., based on a change in the activation / deactivation state of at least one UE Tx panel as previously described). For example, if the UE 102 determines 611 that the triggering condition for the Tx panel status update / change is true, the UE 102 may send 652 a scheduling request for a UE triggered panel status report to the network entity 104. The UE 102 may receive 654 an uplink grant for the UE panel status report based on sending 652 the scheduling request to the network entity 104, so that the UE 102 may send 656 a UE triggered panel status report for STxMP to the network entity 104. After sending 656 the UE panel status report for STxMP, the UE 102 may receive 658 an ACK in an ACK / NACK feedback from the network entity 104 for the UE panel status report for STxMP.

[0078] The UE 102 may send 656 the UE triggered panel status report as uplink control information (UCI) in a PUCCH or PUSCH transmission to the network entity 104. For example, when the inhibit timer expires, the UE 102 may send 656 the UE triggered panel status report. In a further example, in the case where the UE 102 determines to turn off / deactivate one of the Tx active panels, due to overheating or power conservation at the UE 102, the UE 102 may send 656 the UE triggered panel status report. The UE 102 may also turn on / activate at least one inactive Tx panel to improve uplink performance, which may also trigger the UE triggered panel status report. The UE 102 may apply the reported UE Tx panel status change to multiple beam groups. For example, the UE may deactivate at least one uplink panel to save UE power and report the updated / changed number of active panels to the network entity 104. After receiving 656 the UE panel status report, the network entity 104 may send control signaling to update the uplink configuration.

[0079] The UE 102 may send 656 an aperiodic panel status report including updated / changed UE Tx panel status information. For example, the UE 102 may send 656 a UE triggered panel status report via MAC-CE. If no uplink grant for the UE panel status report is received, the UE 102 may send a scheduling request to the network entity 102 to request uplink resources for MAC-CE based UE panel status reporting of STxMP.

[0080] Referring again to signaling diagrams 600-650, the MAC-CE transmission may include a beam report for STxMP, a UE panel status report for STxMP, or updated / changed UE Tx panel information. The UE 102 may send 616 / 656 a UE-triggered beam / panel report for STxMP via a MAC-CE. The MAC-CE may indicate a serving cell index, a downlink reference signal index / group index, or a TCI state index corresponding to the beam report, which may be used to indicate a beam group associated with a UE Tx panel state change. The MAC-CE may also indicate the maximum number of uplink layers, the maximum number of PUSCH antenna ports, the maximum number of SRS resource sets for simultaneous transmission, or whether the downlink reference signal is sent 608 from the same Tx beam / panel for each reported downlink reference signal group indicating an updated / changed UE Tx panel state for each beam group. In a further example, the UE 102 sends 656 a UE-triggered panel status report for STxMP via MAC-CE to indicate a serving cell index or a serving cell group index of the UE panel status report.

[0081] The UE 102 may send 656 a UE-triggered panel status report for STxMP via an RRC message (e.g., a UEAssistanceInformation message). For example, the UE 102 may report the reduced number of active Tx panels in an RRC message sent to the network entity 104. The reduced number of active Tx panels may be indicated by a reduced maximum number of uplink antenna ports or a reduced maximum number of SRS resource sets for simultaneous transmission. The maximum number of uplink antenna ports may be indicated based on a reducedMaxNrofPorts-FR2-UL parameter or a MaxNrofPorts-Preference-FR2-UL parameter, where if the UE 102 supports and determines to use 1 active Tx panel, the UE 102 may report "port1" or "ports2", and if the UE supports and determines to use 2 active Tx panels, the UE 102 may report "ports3" or "ports4". The candidate value "portsX" indicates X ports. In a further example, the maximum number of uplink antenna ports can be indicated based on a reducedMaxNrofSrsSets-STxMP-FR2-UL parameter or a MaxNrofSrsSets-STxMP-Preference-FR2-UL parameter, where if UE 102 supports and determines to use 1 active Tx panel, UE 102 can report "set1", and if UE 102 supports and determines to use 2 active Tx panels, UE 102 can report "sets2". The candidate value "setsY" indicates Y sets.

[0082] For UE triggered beam / panel reporting sent 616 / 656 on PUCCH or via UCI on PUSCH, the network entity 104 may send ACK 618 / 658 to the UE 102 via DCI in a dedicated search space or CORESET configured by the network entity 104 via RRC signaling. Alternatively, the network entity 104 may send 618 / 658 ACK via DCI associated with a dedicated radio network temporary identifier (RNTI), which the network entity 104 may configure via RRC signaling. For MAC-CE based UE triggered beam / panel reporting, the network entity 104 may send 618 / 658 ACK based on the DCI that schedules the transmission of PUSCH, using the same hybrid automatic repeat request (HARQ) process as the previous PUSCH with MAC-CE for UE triggered beam / panel reporting.

[0083] If the UE-triggered beam / panel report indicates that uplink transmission from a particular panel is turned off / deactivated, the network entity 104 avoids sending DCI to the UE 102, which schedules the UE 102 to transmit and / or receive using the turned off / deactivated panel. If the UE-triggered beam / panel report indicates that uplink transmission from a particular panel is turned off / deactivated, the network entity 104 may send DCI to the UE 102, which schedules the UE 102 to transmit and / or receive using the turned on / activated panel. Similarly, if the UE-triggered beam / panel report indicates that downlink reception of a particular panel is turned off / deactivated, the network entity 104 avoids sending DCI to the UE 102, which schedules the UE 102 to receive downlink signaling using the turned off / deactivated panel. If the UE-triggered beam / panel report indicates that downlink reception from a particular panel is turned on / activated, the network entity 104 may send a DCI to the UE 102 that schedules the UE 102 to receive downlink signaling using the turned on / activated panel.

[0084] If the network entity 104 (e.g., a base station) includes a CU and a DU, the CU may receive a packet data convergence protocol (PDCP) protocol data unit (PDU) containing a UE-triggered beam / panel report from the UE via the DU. Therefore, the CU retrieves the UE-triggered beam / panel report from the PDCP PDU and sends the UE-triggered beam / panel report to the DU. Based on the activation / deactivation state of the UE panel, the DU may or may not avoid sending DCI to the UE 102. Figure 6A-6B Beam reporting and UE panel status reporting for STxMP are shown. Figure 7A-7B The communication process for STxMP after the UE panel state changes is shown.

[0085] Figure 7A-7B is a signaling diagram 700-750, which shows that (for example, Figure 6B656 reported in ). The signaling diagram 700 corresponds to an uplink MIMO parameter set selection process based on a UE panel state change. The network entity 104 may send 761 control signaling to the UE 102 for configuring one or more uplink MIMO-related parameter sets, where each parameter set may correspond to a UE panel state (e.g., 1 active Tx panel, 2 active Tx panels, etc.). For example, the network entity 104 sends 761 control signaling to the UE 102 via an SRB (e.g., SRB1). In another example, the network entity 104 sends 761 control signaling to the UE 102 via a non-core network entity (such as, via a base station of a backhaul link). The network entity 104 and the UE 102 may optionally perform 606 / 706. Figure 6A-6B After the network-triggered reporting process for STxMP and / or the UE-triggered reporting process for STxMP reflected in , the network entity 104 may send 763 control signaling (e.g., MAC-CE or DCI) to the UE 102 for uplink MIMO-related parameter set selection, thereby configuring further communication 780 with the UE 102.

[0086] UE 102 and network entity 104 may utilize a default parameter set (e.g., a first parameter set) before network entity 104 sends 763 control signaling for uplink MIMO parameter set selection to UE 102. After UE 102 receives 763 control signaling for uplink MIMO parameter set selection, UE 102 may send 765 ACK to network entity 104 in ACK / NACK feedback for the control signaling.

[0087] The network entity 104 may send 771 TCI update signaling for uplink beam indication based on the latest beam report for STxMP. In some examples, the network entity 104 and the UE 102 may automatically update / change uplink MIMO parameters based on the latest beam report without control signaling, wherein the network entity 104 and the UE 102 may apply an uplink MIMO parameter set corresponding to the latest reported UE Tx panel state. After the UE 102 receives 771 TCI update signaling for uplink beam indication, the UE 102 may send 773 ACK to the network entity 104 in ACK / NACK feedback for the TCI update signaling. The network entity 104 and the UE 102 may select to communicate 780 based on the uplink MIMO related parameter set corresponding to the UE panel state change.

[0088] The signaling diagram 750 corresponds to an uplink MIMO parameter update procedure based on a UE panel state change. The network entity 104 may send 754 to the UE 102 control signaling for configuring one or more uplink MIMO-related parameter sets based on a predetermined UE panel state (e.g., 1 active Tx panel, 2 active Tx panels, etc.). For example, the network entity 104 sends 754 the control signaling to the UE 102 via an SRB (e.g., SRB1). In another example, the network entity 104 sends 754 the control signaling to the UE 102 via a non-core network entity (e.g., via a base station of a backhaul link). In an example, the network entity 104 may configure the uplink MIMO parameter set via RRC signaling. For example, each parameter set (e.g., in PUSCH-Config) may indicate a codebook subset configuration (e.g., codebookSubset and codebookSubsetDCI-0-2) associated with a codebook subset for uplink codebook based transmission, a maximum number of uplink layers (e.g., maxRank and maxRankDCI-0-2), and an uplink full power mode (e.g., ul-FullPowerTransmission) that may be used to select an uplink full power transmission mode for PUSCH transmission. The network entity 104 may configure a list of PUSCH configurations (e.g., PUSCH-Config) and / or SRS configurations (e.g., SRS-Config), where each PUSCH / SRS configuration corresponds to one UE Tx panel state (e.g., 1 active Tx panel or 2 active Tx panels).

[0089] The network entity 104 and the UE 102 may optionally perform 606 / 706 Figure 6A-6B , the network entity 104 may send 759 a MAC-CE to the UE 102 for updating at least one uplink MIMO-related parameter set, following the network-triggered reporting procedure for STxMP and / or the UE-triggered reporting procedure for STxMP as reflected in . For example, the network entity 104 may use the MAC-CE to update the uplink MIMO parameters based on the latest received beam / panel report for STxMP. The UE 102 may send 760 an ACK to the network entity 104 in an ACK / NACK feedback for the MAC-CE, so that the UE 102 and the network entity 104 may start communication 766 based on the uplink MIMO-related parameter update corresponding to the UE panel state change. In a further example, the communication 766 may be based on the sending 771 of TCI update signaling from the network entity 104 and the receiving 773 of the ACK for the TCI update signaling by the network entity 104, as described with respect to the signaling diagram 700.

[0090] The network entity 104 and the UE 102 may apply an uplink MIMO parameter set corresponding to the UE Tx panel state for a beam associated with the indicated TCI state of the uplink channel after Y time slots from the beam / panel reporting process, where Y may be predefined, configured by the network entity 104 via RRC signaling, or reported by the UE 102 as a UE capability. The network entity 104 may further send 759 a MAC-CE to reduce one or more parameter sets in the configured uplink MIMO parameter set. For example, the network entity 104 may configure at least one of a serving cell index, a serving cell list index, an uplink bandwidth part (BWP) index, or a parameter set index via the MAC-CE. The network entity 104 and the UE 102 may apply the indicated uplink MIMO parameter set after Z1 time slots from sending 760 an ACK for the MAC-CE to the network entity 104, where Z1 may be predefined, configured by the network entity 104 via RRC signaling, or reported by the UE 102 as a UE capability.

[0091] The network entity 104 may also send a DCI (not shown) to reduce one or more of the configured uplink MIMO parameter sets. A field of the DCI may be used to indicate a parameter set index. The DCI may be a DCI that schedules a PDSCH transmission, wherein the network entity 104 determines that the DCI has been received by the UE 102 after the network entity 104 receives an ACK for the PDSCH reported by the UE 102. In a further example, the DCI may be a DCI that schedules a PUSCH transmission, wherein the network entity 104 determines that the DCI has been received by the UE 102 after the network entity 104 receives a scheduled PUSCH transmission from the UE 102. In a further example, the DCI may be a DCI that does not schedule a PDSCH or PUSCH transmission, but after the UE 102 decodes the DCI, the UE 102 sends an ACK to the network entity 104 on the PUCCH resources.

[0092] The network entity 104 and the UE 102 may apply the indicated uplink MIMO parameter set after Z2 time slots from sending 760 the ACK for the MAC-CE, where Z2 may be predefined, configured by the network entity 104 via RRC signaling, or reported by the UE 102 as a UE capability. In a further example, the network entity 104 may configure the uplink MIMO parameter set via RRC signaling and send 759 a MAC-CE to update the parameters. For example, the network entity 104 may configure via MAC-CE a codebook subset indicating a codebook subset for uplink codebook based transmission (e.g., codebookSubset and codebookSubsetDCI-0-2), a maximum number of uplink layers (e.g., maxRank and maxRankDCI-0-2), an uplink full power mode for selecting an uplink full power transmission mode for PUSCH transmission (e.g., ul-FullPowerTransmission), and / or a serving cell or serving cell list index. Figure 5-7B Network triggered reporting and UE triggered reporting for STxMP are shown. Figure 8-Figure 9 Shown is the method for implementing Figure 5-7B Specifically, Figure 8 UE 102 is shown Figure 5-7B Implementation of one or more aspects. Fig. 9 The network entity 104 is shown Figure 5-7B Implementation of one or more aspects.

[0093] Figure 8 A flow chart 800 is shown of a method of wireless communication at a UE 102. Figure 1-7B and Fig.10 , the method can be performed by UE 102, UE equipment 1002, etc., which may include a memory 1024' and may correspond to the entire UE 102 or UE equipment 1002, or a component of the UE 102 or UE equipment 1002, such as a wireless baseband processor 1024 and / or an application processor 1006.

[0094] The UE 102 may send 802 a UE capability report indicating one or more UE capabilities reported for a beam / panel - the one or more UE capabilities including at least one of: a first maximum number of SSB or CSI-RS resources for the report, a second maximum number of SSB or CSI-RS resources in a time slot for the report, a third maximum number of one or more activated panels at the UE, or a number of antenna ports for each panel at the UE. For example, referring to Figure 5, the UE 102 sends 502 a UE capability report for network triggered beam reporting for STxMP to the network entity 104. Figure 6A-6B , the UE 102 sends 602 a UE capability report for UE-triggered reporting of STxMP to the network entity 104.

[0095] The UE 102 receives 804 control signaling for transmission of a report associated with the STxMP from a network entity—the control signaling indicating at least one of: a reported amount of uplink beams for reporting, one or more DL-RSs to be measured for reporting, prohibition timer information for transmission of the report, or uplink resources for transmission of the report. For example, referring to Figure 5 , the UE 102 receives 504 control signaling for beam reporting for STxMP from the network entity 104, the control signaling having a downlink reference signal for beam reporting and a reporting amount for beam reporting. Figure 6A-6B , the UE 102 receives 604 control signaling for UE-triggered reporting for STxMP from the network entity 104, the control signaling including at least one of a prohibit timer and / or uplink resources for UE-triggered reporting.

[0096] The UE 102 may receive 806 at least one of a DCI or a MAC-CE - the DCI triggering an aperiodic report for STxMP, and the MAC-CE triggering at least one of a semi-persistent report for STxMP or an update of one or more uplink MIMO parameter sets. Figure 5 , the UE 102 receives 506 a MAC-CE from the network entity 104 to trigger a semi-persistent beam report for STxMP or receives a DCI to trigger an aperiodic beam report for STxMP.

[0097] The UE 102 may receive 808 one or more DL-RSs from a network entity on one or more activated panels - measurement values ​​of one or more DL-RSs for activating trigger conditions. Figure 5 , the UE 102 receives 508 from the network entity 104 one or more downlink reference signals for beam reporting for STxMP. Fig. 6A , the UE 102 may receive 608 from the network entity 104 one or more downlink reference signals for the latest network-triggered beam report or beam indication for STxMP.

[0098] The UE 102 may send 812 a scheduling request for reporting based on the activation of the triggering condition for reporting. Fig. 6A, the UE 102 sends 612 a scheduling request for beam reporting for STxMP to the network entity 104. Figure 6B , the UE 102 may send 652 to the network entity 104 a scheduling request for UE panel status reporting for STxMP.

[0099] In response to sending the scheduling request, the UE 102 may receive 814 an uplink grant for sending a report to a network entity. Fig. 6A , the UE 102 receives 614 an uplink grant for the beam report for STxMP from the network entity 104. Figure 6B , the UE 102 receives 654 from the network entity 104 an uplink grant for the UE panel status report for STxMP.

[0100] The UE 102 sends 816 a report conforming to control signaling to the network entity based on the trigger condition—the report corresponding to at least one of a beam report for STxMP or a panel status update report for STxMP. Figure 5 , UE 102 sends 516 a beam report for STxMP to network entity 104, the beam report including at least one group of beams indicated by a downlink reference signal index (UE 102 can simultaneously send uplink signals for these beams), corresponding beam qualities, and UE panel related information. Fig. 6A , the UE 102 sends 616 a beam report for STxMP to the network entity 104. Figure 6B , the UE 102 sends 656 a UE panel status report for STxMP to the network entity 104.

[0101] UE 102 may receive 818 ACK / NACK feedback in response to the sending of the report. Fig. 6A , UE 102 receives 618 an ACK for the beam report for STxMP from network entity 104. Figure 6B , the UE 102 receives 658 an ACK from the network entity 104 for the UE panel status report for STxMP. Figure 8 A method from the UE side of a wireless communication link is described, while Fig. 9 A method from the network side of a wireless communication link is described.

[0102] Fig. 9 900 is a flow chart of a method of wireless communication at a network entity 104. Figure 1-7B and Fig.11, the method may be performed by one or more network entities 104, which may correspond to a base station or a unit of a base station, such as RU 106, DU 108, CU 110, RU processor 1142, DU processor 1132, CU processor 1112, etc. One or more network entities 104 may include a memory 1112' / 1132' / 1142', which may correspond to the entirety of one or more network entities 104, or a component of one or more network entities 104, such as RU processor 1142, DU processor 1132, or CU processor 1112.

[0103] The one or more network entities 104 may receive 902 a UE capability report indicating one or more UE capabilities for a beam / panel report - the one or more UE capabilities including at least one of: a first maximum number of SSB or CSI-RS resources for the report, a second maximum number of SSB or CSI-RS resources in a time slot for the report, a third maximum number of one or more activated panels at the UE, or a number of antenna ports for each panel at the UE. For example, referring to Figure 5 , the network entity 104 receives 502 from the UE 102 a UE capability report for network triggered beam reporting for STxMP. Figure 6A-6B , the network entity 104 receives 602 from the UE 102 a UE capability report for UE triggered reporting for STxMP.

[0104] The one or more network entities 104 send 904 control signaling to the UE for reception of a report associated with the UE's STxMP—the control signaling indicating at least one of: a reported amount of uplink beams for reporting, one or more DL-RSs to be measured for reporting, inhibit timer information for reception of the report, or uplink resources for reception of the report. For example, referring to Figure 5 , the network entity 104 sends 504 to the UE 102 a control signaling for beam reporting for STxMP, the control signaling having a downlink reference signal for beam reporting and a reporting amount for beam reporting. Figure 6A-6B , the network entity 104 sends 604 to the UE 102 control signaling for UE-triggered reporting for STxMP, the control signaling including at least one of a prohibit timer and / or uplink resources for UE-triggered reporting.

[0105] The one or more network entities 104 may send 906 at least one of a DCI or a MAC-CE - the DCI triggering an aperiodic report for STxMP, and the MAC-CE triggering at least one of a semi-persistent report for STxMP or an update of one or more uplink MIMO parameter sets. Figure 5 , the network entity 104 sends 506 a MAC-CE to the UE 102 to trigger a semi-persistent beam report for STxMP or sends a DCI to trigger an aperiodic beam report for STxMP.

[0106] One or more network entities 104 may send 908 one or more DL-RSs to the UE for one or more activated panels. Figure 5 , the network entity 104 sends 508 to the UE 102 one or more downlink reference signals for beam reporting for STxMP. Fig. 6A , the network entity 104 sends 608 one or more downlink reference signals to the UE 102.

[0107] The one or more network entities 104 may receive 912 a scheduling request for reporting based on a trigger condition for reporting. Fig. 6A , the network entity 104 receives 612 a scheduling request for beam reporting for STxMP from the UE 102. Figure 6B , the network entity 104 receives 652 from the UE 102 a scheduling request for UE panel status reporting for STxMP.

[0108] In response to receiving the scheduling request, one or more network entities 104 may send 914 an uplink grant for receiving a report from the UE. Fig. 6A , the network entity 104 sends 614 an uplink grant for beam reporting for STxMP to the UE 102. Figure 6B , the network entity 104 sends 654 to the UE 102 an uplink grant for the UE panel status report for STxMP.

[0109] One or more network entities 104 receive 916 a report from the UE that complies with control signaling—the report corresponding to at least one of a beam report for STxMP or a panel status update report for STxMP. Figure 5 , the network entity 104 receives 516 a beam report for STxMP from the UE 102, the beam report including at least one group of beams indicated by a downlink reference signal index (the UE 102 can simultaneously send uplink signals for these beams), corresponding beam qualities, and UE panel related information. Fig. 6A, the network entity 104 receives 616 a beam report for STxMP from the UE 102. Figure 6B , the network entity 104 receives 656 a UE panel status report for STxMP from the UE 102 .

[0110] One or more network entities 104 may send 918 ACK / NACK feedback in response to receipt of the report. Fig. 6A , the network entity 104 sends 618 an ACK to the UE 102 for the beam report for STxMP. Figure 6B , the network entity 104 sends 658 to the UE 102 an ACK for the UE panel status report for STxMP. Fig.10 The UE equipment 1002 described in the flowchart 800 may perform the method. Fig.11 As described in , one or more network entities 104 may perform the method of flowchart 900 .

[0111] Fig.10 1000 is a diagram illustrating an example of a hardware implementation of a UE equipment 1002. Equipment 1002 may be a UE 102, a component of a UE, or may implement UE functionality. In some aspects, equipment 1002 may include a wireless baseband processor 1024 (also referred to as a modem) coupled to one or more transceivers 1022 (e.g., a wireless RF transceiver). The wireless baseband processor 1024 may include on-chip memory 1024'. In some aspects, equipment 1002 may further include one or more subscriber identity module (SIM) cards 1020 and an application processor 1006 coupled to a secure digital (SD) card 1008 and a screen 1010. The application processor 1006 may include on-chip memory 1006'.

[0112] The equipment 1002 may further include a Bluetooth module 1012, a WLAN module 1014, an SPS module 1016 (e.g., a GNSS module), and a cellular module 1017 located within one or more transceivers 1022. The Bluetooth module 1012, the WLAN module 1014, the SPS module 1016, and the cellular module 1017 may include an on-chip transceiver (TRX) (or in some cases, only a receiver (RX)). The Bluetooth module 1012, the WLAN module 1014, the SPS module 1016, and the cellular module 1017 may include their own dedicated antennas and / or communicate using antennas 1080. The equipment 1002 may further include one or more sensor modules 1018 (e.g., an atmospheric pressure sensor / altimeter; motion sensors such as an inertial management unit (IMU), a gyroscope, and / or an accelerometer; light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), sound navigation and ranging (SONAR), magnetometer, audio, and / or other technologies for positioning), additional modules for memory 1026, a power supply 1030, and / or a camera 1032.

[0113] The wireless baseband processor 1024 communicates with another UE 102 and / or with a RU associated with the network entity 104 via one or more antennas 1080 through the transceiver 1022. The wireless baseband processor 1024 and the application processor 1006 can each include a computer-readable medium / memory 1024', 1006', respectively. The additional modules of the memory 1026 can also be regarded as computer-readable media / memory. Each computer-readable medium / memory 1024', 1006', 1026 can be non-temporary. The wireless baseband processor 1024 and the application processor 1006 are each responsible for general processing, including executing software stored on a computer-readable medium / memory. When the software is executed by the wireless baseband processor 1024 / application processor 1006, it causes the wireless baseband processor 1024 / application processor 1006 to perform the various functions described. The computer-readable medium / memory can also be used to store data manipulated by the wireless baseband processor 1024 / application processor 1006 when executing the software. The wireless baseband processor 1024 / application processor 1006 may be a component of the UE 102. The equipment 1002 may be a processor chip (modem and / or application) and include only the wireless baseband processor 1024 and / or the application processor 1006, and in another configuration, the equipment 1002 may be the entire UE 102 and include additional modules of the equipment 1002.

[0114] As discussed, the STxMP component 140 is configured to receive control signaling for the transmission of a report associated with STxMP from a network entity, wherein the control signaling indicates at least one of: a reported amount of uplink beams for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for the transmission of the report, or uplink resources for the transmission of the report; and based on a trigger condition, transmit the report to the network entity in accordance with the control signaling, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP. The STxMP component 140 may be located within the wireless baseband processor 1024, the application processor 1006, or both the wireless baseband processor 1024 and the application processor 1006. The STxMP component 140 may be one or more hardware components explicitly configured to execute the process / algorithm, implemented by one or more processors configured to execute the process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof.

[0115] As shown, the equipment 1002 may include various components configured for various functions. In one configuration, the equipment 1002, and in particular the wireless baseband processor 1024 and / or the application processor 1006, include: a component for receiving control signaling for the transmission of a report associated with STxMP from a network entity, wherein the control signaling indicates at least one of: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for the transmission of the report, or an uplink resource for the transmission of the report; and a component for transmitting the report in accordance with the control signaling to the network entity based on a trigger condition, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP. The equipment 1002 further includes a component for receiving one or more downlink reference signals from the network entity on one or more activated panels, wherein the measurement value of the one or more downlink reference signals activates the trigger condition. The apparatus 1002 further includes a component for sending a UE capability report, the UE capability report indicating one or more UE capabilities for the report, wherein the one or more UE capabilities include at least one of the following: a first maximum number of SSB or CSI-RS resources for the report, a second maximum number of SSB or CSI-RS resources in a time slot for the report, a third maximum number of one or more activated panels at the UE, or a number of antenna ports for each panel at the UE. The apparatus 1002 further includes: a component for sending a scheduling request for the report based on activation of a trigger condition for the report; and a component for receiving an uplink grant for sending the report to the network entity in response to sending the scheduling request. The apparatus 1002 further includes a component for receiving a first ACK / NACK feedback in response to sending the report.

[0116] The equipment 1002 further includes a component for receiving at least one of a DCI or a MAC-CE, wherein the DCI triggers an aperiodic beam report for STxMP, and wherein the MAC-CE triggers at least one of a semi-persistent beam report for STxMP or an update of one or more uplink MIMO parameter sets. The equipment 1002 further includes a component for sending a second ACK / NACK feedback in response to at least one of a control signaling indicating one or more uplink MIMO parameter sets or a MAC-CE updating one or more uplink MIMO parameter sets. The equipment 1002 further includes a component for receiving a TCI update for an uplink beam indication; and a component for sending a third ACK / NACK feedback for a TCI update for an uplink beam indication in response to a decoding operation associated with receiving the TCI update. The equipment 1002 further includes a component for communicating with a network entity based on a parameter set corresponding to a panel state indicated in a panel state update report in one or more uplink MIMO parameter sets. The component can be the STxMP component 140 of the equipment 1002 configured to perform the functions described by the component.

[0117] Fig.11 1100 is a diagram illustrating an example of a hardware implementation of one or more network entities 104. One or more network entities 104 may be a BS, a component of a BS, or may implement BS functionality. One or more network entities 104 may include at least one of a CU 1110, a DU 1130, or a RU 1140. For example, component 199 may be located at one or more network entities 104, such as at a CU 1110; at both a CU 1110 and a DU 1130; at each of a CU 1110, a DU 1130; and at a RU 1140; at a DU 1130; at both a DU 1130 and a RU 1140; or at a RU 1140.

[0118] CU 1110 may include CU processor 1112. CU processor 1112 may include on-chip memory 1112'. In some aspects, CU 1110 may further include additional memory module 1114 and communication interface 1118. CU 1110 communicates with DU 1130 via midhaul link 162 (such as F1 interface). DU 1130 may include DU processor 1132. DU processor 1132 may include on-chip memory 1132'. In some aspects, DU 1130 may further include additional memory module 1134 and communication interface 1138. DU 1130 communicates with RU 1140 via fronthaul link 160. RU 1140 may include RU processor 1142. RU processor 1142 may include on-chip memory 1142'. In some aspects, the RU 1140 may further include an additional memory module 1144, one or more transceivers 1146, an antenna 1180, and a communication interface 1148. The RU 1140 communicates wirelessly with the UE 102.

[0119] On-chip memory 1112', 1132', 1142' and additional memory modules 1114, 1134, 1144 can each be considered a computer-readable medium / memory. Each computer-readable medium / memory can be non-temporary. Each of the processors 1112, 1132, 1142 is responsible for general processing, including executing software stored on the computer-readable medium / memory. The software, when executed by the corresponding processor, causes the processor to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by the processor when executing the software.

[0120] As discussed, the report configuration component 150 is configured to send control signaling to the UE for receiving a report associated with the STxMP of the UE, wherein the control signaling indicates at least one of: a reported amount of uplink beams for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for receiving the report, or uplink resources for receiving the report; and based on a trigger condition, receive the report from the UE in accordance with the control signaling, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP. The report configuration component 150 may be located within one or more processors of one or more of the CU 1110, DU 1130, and RU 1140. The report configuration component 150 may be one or more hardware components explicitly configured to perform the process / algorithm, implemented by one or more processors configured to perform the process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof.

[0121] One or more network entities 104 may include various components configured for various functions. In one configuration, one or more network entities 104 include: a component for sending control signaling for receiving a report associated with the UE's STxMP to the UE, wherein the control signaling indicates at least one of the following: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for receiving the report, or an uplink resource for receiving the report; and a component for receiving the report from the UE in accordance with the control signaling based on a trigger condition, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP. One or more network entities 104 further include a component for sending one or more downlink reference signals to the UE for one or more activated panels. The one or more network entities 104 further include a component for receiving a UE capability report, which indicates one or more UE capabilities for the report, wherein the one or more UE capabilities include at least one of the following: a first maximum number of SSB or CSI-RS resources for the report, a second maximum number of SSB or CSI-RS resources in a time slot for the report, a third maximum number of one or more activated panels at the UE, or a number of antenna ports for each panel at the UE.

[0122] The one or more network entities 104 further include a component for receiving a scheduling request for a report; and a component for sending an uplink grant for receiving a report from the UE in response to receiving the scheduling request. The one or more network entities 104 further include a component for sending at least one of a DCI or a MAC-CE, wherein the DCI triggers an aperiodic beam report for STxMP, and wherein the MAC-CE triggers at least one of a semi-persistent beam report for STxMP or an update of one or more uplink MIMO parameter sets. The one or more network entities 104 further include a component for receiving a second ACK / NACK feedback in response to at least one of control signaling indicating one or more uplink MIMO parameter sets or a MAC-CE updating one or more uplink MIMO parameter sets. The one or more network entities 104 further include a component for sending a TCI update for an uplink beam indication; and a component for receiving a third ACK / NACK feedback for a TCI update for an uplink beam indication in response to a decoding operation associated with sending the TCI update. The one or more network entities 104 further include means for communicating with the UE based on a parameter set in the one or more uplink MIMO parameter sets corresponding to the panel state indicated in the panel state update report. The means may be a report configuration component 150 of the one or more network entities 104 configured to perform the functions recited by the means.

[0123] The specific order or hierarchy of the boxes in the processes and flow charts disclosed herein is an illustration of an example method. Therefore, the specific order or hierarchy of the boxes in the processes and flow charts can be rearranged. Some boxes can also be merged or deleted. Dashed lines can indicate optional elements of the diagram. The attached method claims present elements of each box in an example order and are not limited to the specific order or hierarchy presented in the claims, processes and flow charts.

[0124] The detailed description set forth herein describes various configurations in conjunction with the accompanying drawings, but does not represent the only configuration in which the concepts described herein can be practiced. The detailed description includes specific details for providing a comprehensive explanation of the various concepts. However, these concepts can be practiced without using these specific details. In some cases, well-known structures and components are shown in block diagram form in order to avoid blurring such concepts.

[0125] Various aspects of wireless communication systems (such as telecommunication systems) are presented with reference to various equipment and methods. These equipment and methods are described in the detailed description that follows and are illustrated in the accompanying drawings by various blocks, components, circuits, processes, call flows, systems, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and design constraints imposed on the overall system.

[0126] Elements, or any part of elements or any combination of elements can be implemented as a "processing system" including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gating logic, discrete hardware circuits, and other similar hardware configured to perform various functions described throughout this disclosure. One or more processors in a processing system can execute software, which can be referred to as software, firmware, middleware, microcode, hardware description language, or other. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, execution threads, processes, functions, or any combination thereof.

[0127] If the functions described herein are implemented in software, the functions may be stored on a computer-readable medium (such as a non-transitory computer-readable storage medium) or encoded as one or more instructions or codes on the computer-readable medium. Computer-readable media include computer storage media and may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer-executable code in the form of computer-accessible instructions or data structures. The storage medium can be any available medium that is accessible to a computer.

[0128] The aspects, implementations, and / or use cases described herein may be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, the aspects, implementations, and / or use cases may be generated via integrated chip implementations and other non-module component-based devices such as end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / procurement devices, medical devices, artificial intelligence (AI)-enabled devices, machine learning (ML)-enabled devices, and the like. The aspects, implementations, and / or use cases may range from chip-level or modular components to non-modular or non-chip-level implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more of the techniques described herein.

[0129] Devices incorporating the various aspects and features described herein may also include additional components and features for implementing and practicing the various aspects and features claimed and described. For example, the transmission and reception of wireless signals necessarily include many components for analog and digital purposes, such as hardware components, antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc. The techniques described herein may be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc., in various configurations.

[0130] The description herein is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not limited to the various aspects described herein, but should be interpreted in view of the full scope of the disclosure consistent with the language of the claims.

[0131] Unless explicitly stated, references to singular elements do not mean "one and only one", but rather "one or more". Terms such as "if", "when ..." and "at ..." do not imply an immediate temporal relationship or reaction. That is, these phrases (such as "when ...") do not imply an immediate action in response to the occurrence of an action or during the occurrence of an action, but simply mean that if a certain condition is met, a certain action will occur, but no specific or immediate time constraints are required for the occurrence of the action. Unless explicitly stated otherwise, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C" or "one or more of A, B, or C" include any combination of A, B, and / or C, such as A and B, A and C, B and C, or A and B and C, and may include multiple A, multiple B, and / or multiple C, or may include only A, only B, or only C. A set should be interpreted as a set of elements in which the number of elements is one or more.

[0132] Unless expressly indicated otherwise, ordinal terms such as "first" and "second" do not necessarily imply an order in time, sequence, value, etc., but are used to distinguish different instances of the term or phrase following each ordinal term.

[0133] The structural equivalents and functional equivalents of the elements of various aspects described in the entire disclosure known or later learned by those of ordinary skill in the art are expressly incorporated herein by reference and are covered by the claims. The words "module", "mechanism", "element", "device", etc. may not be substitutes for the word "component". Therefore, unless the phrase "component for ..." is used to clearly state the claim element, any claim element shall not be interpreted as a means plus function. As used herein, the phrase "based on" should not be interpreted as a reference to a closed information set, one or more conditions, one or more factors, etc. In other words, unless clearly stated differently, the phrase "based on A" (where "A" can be information, conditions, factors, etc.) should be interpreted as "at least based on A".

[0134] The following examples are merely illustrative and may be combined with other examples or teachings described herein without limitation.

[0135] Example 1 is a method of wireless communication at a UE, comprising: receiving control signaling for the sending of a report associated with STxMP from a network entity, and including: the control signaling indicates at least one of: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for the sending of the report, or an uplink resource for the sending of the report; and based on a trigger condition, sending the report that complies with the control signaling to the network entity, and including: the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

[0136] Example 2 may be combined with Example 1, and further include: receiving the one or more downlink reference signals from the network entity on one or more activated panels, and including: a measurement value activation trigger condition of the one or more downlink reference signals.

[0137] Example 3 can be combined with any one of Examples 1 to 2, and further includes: sending a UE capability report, the UE capability report indicating one or more UE capabilities for the report, and including: the one or more UE capabilities include at least one of the following: a first maximum number of supported SSB or CSI-RS resources for the report, a second maximum number of supported SSB or CSI-RS resources in the time slot of the report, a third maximum number of the one or more activated panels at the UE, or the number of antenna ports for each activated panel at the UE.

[0138] Example 4 can be combined with any one of Examples 1 to 3, and further includes sending a scheduling request for the report based on activation of the trigger condition for the report; and receiving an uplink authorization for sending the report to the network entity in response to the sending of the scheduling request.

[0139] Example 5 can be combined with any one of Examples 1 to 4 and include: the beam report for STxMP includes at least one of: beam quality, panel information, or a group of beams associated with STxMP and indicated by one or more indices of the one or more downlink reference signals.

[0140] Example 6 may be combined with any one of Examples 1 to 5 and further include receiving a first ACK / NACK feedback in response to sending the report.

[0141] Example 7 can be combined with any one of Examples 1 to 6, and includes: the control signaling further indicates one or more parameter sets in the uplink MIMO parameter set, and includes: at least one parameter set in the one or more uplink MIMO parameter sets corresponds to a predefined panel state, or each parameter set in the one or more uplink MIMO parameter sets corresponds to a corresponding panel state.

[0142] Example 8 can be combined with any one of Examples 1 to 7, and further includes receiving at least one of a DCI or a MAC-CE, and includes: the DCI triggers a non-periodic beam report for STxMP, and includes: the MAC-CE triggers a semi-persistent beam report for STxMP or an update of at least one of the one or more uplink MIMO parameter sets.

[0143] Example 9 may be combined with any one of Examples 1 to 8, and further includes sending a second ACK / NACK feedback in response to at least one of the control signaling indicating the one or more uplink MIMO parameter sets or updating the one or more uplink MIMO parameter sets.

[0144] Example 10 may be combined with any one of Examples 1 to 9 and further include receiving a TCI update for an uplink beam indication; and sending a third ACK / NACK feedback for the TCI update for the uplink beam indication in response to a decoding operation associated with receiving the TCI update.

[0145] Example 11 may be combined with any one of Examples 1 to 10, and further comprises communicating with the network entity based on a parameter set of the one or more uplink MIMO parameter sets corresponding to the panel status indicated in the panel status update report.

[0146] Example 12 is a method of wireless communication at a network entity, comprising: sending control signaling for receiving a report associated with the STxMP of the UE to a UE, and including that the control signaling indicates at least one of: a reported amount of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for the reception of the report, or an uplink resource for the reception of the report; and based on a trigger condition, receiving the report from the UE that complies with the control signaling, and including that the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

[0147] Example 13 may be combined with Example 12 and further include: sending the one or more downlink reference signals to the UE for one or more activated panels.

[0148] Example 14 can be combined with any one of Examples 12 to 13, and further includes: receiving a UE capability report, the UE capability report indicating one or more UE capabilities for the report, and including: the one or more UE capabilities include at least one of the following: a first maximum number of supported SSB or CSI-RS resources for the report, a second maximum number of supported SSB or CSI-RS resources in a time slot of the report, a third maximum number of the one or more activated panels at the UE, or a number of antenna ports for each activated panel at the UE.

[0149] Example 15 may be combined with any one of Examples 12 to 14, and further comprises receiving a scheduling request for the report; and sending an uplink grant for receiving the report from the UE in response to the receiving the scheduling request.

[0150] Example 16 can be combined with any one of Examples 12 to 15 and include: the beam report for STxMP includes at least one of: beam quality, panel information, or a group of beams associated with the STxMP and indicated by one or more indices of the one or more downlink reference signals.

[0151] Example 17 can be combined with any one of Examples 12 to 16, and includes: the control signaling further indicates one or more uplink MIMO parameter sets, and includes: at least one parameter set in the one or more uplink MIMO parameter sets corresponds to a predefined panel state, or each parameter set in the one or more uplink MIMO parameter sets corresponds to a corresponding panel state.

[0152] Example 18 can be combined with any one of Examples 12 to 17, and further includes sending at least one of a DCI or a MAC-CE, and includes: the DCI triggers a non-periodic beam report for STxMP, and includes: the MAC-CE triggers a semi-persistent beam report for STxMP or an update of at least one of the one or more uplink MIMO parameter sets.

[0153] Example 19 may be combined with any one of Examples 12 to 18, and further include receiving a second ACK / NACK feedback in response to the control signaling indicating the one or more uplink MIMO parameter sets or at least one of the MAC-CEs updating the one or more uplink MIMO parameter sets.

[0154] Example 20 may be combined with any one of Examples 12 to 19, and further include sending a TCI update for an uplink beam indication; and receiving a third ACK / NACK feedback for the TCI update for the uplink beam indication in response to a decoding operation associated with sending the TCI update.

[0155] Example 21 may be combined with any one of Examples 12 to 20, and further include communicating with the UE based on a parameter set of the one or more uplink MIMO parameter sets corresponding to the panel status indicated in the panel status update report.

[0156] Example 22 is a wireless communication equipment for implementing a method as described in any one of Examples 1 to 21.

[0157] Example 23 is a wireless communication equipment comprising components for implementing a method as described in any of Examples 1 to 21.

[0158] Example 24 is a non-transitory computer-readable medium storing computer executable code, which, when executed by at least one processor, causes the at least one processor to implement the method as described in any one of Examples 1 to 21.

Claims

1. A method of wireless communication at a user equipment (UE), comprising: receiving control signaling for transmission of a report associated with simultaneous transmission of multiple panels (STxMP) from a network entity, wherein the control signaling indicates at least one of: a reported amount of uplink beams for the report, one or more downlink reference signals to be measured for the report, inhibit timer information for the transmission of the report, or uplink resources for the transmission of the report; as well as Based on a trigger condition, the report conforming to the control signaling is sent to the network entity, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

2. The method of claim 1, further comprising: The one or more downlink reference signals are received from the network entity on one or more activated panels, wherein measurement values ​​of the one or more downlink reference signals activate a triggering condition.

3. The method according to any one of claims 1 to 2, further comprising: Send a UE capability report, wherein the UE capability report indicates one or more UE capabilities for the report, wherein the one or more UE capabilities include at least one of: a first maximum number of supported synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources for the report, a second maximum number of supported SSBs or CSI-RS resources in a time slot of the report, a third maximum number of the one or more activated panels at the UE, or a number of antenna ports for each activated panel at the UE.

4. The method according to any one of claims 1 to 3, further comprising: sending a scheduling request for the report based on activation of the trigger condition for the report; as well as An uplink grant for sending the report to the network entity is received in response to sending the scheduling request.

5. A method as described in any one of claims 1 to 4, wherein the beam report for STxMP includes at least one of: beam quality, panel information, or a group of beams associated with STxMP indicated by one or more indices of the one or more downlink reference signals.

6. The method according to any one of claims 1 to 5, further comprising: A first acknowledgement / negative acknowledgement (ACK / NACK) feedback is received in response to sending the report.

7. The method of any one of claims 1 to 6, wherein the control signaling further indicates one or more parameter sets in an uplink multiple-input multiple-output (MIMO) parameter set, wherein at least one parameter set in the one or more uplink MIMO parameter sets corresponds to a predefined panel state, or each parameter set in the one or more uplink MIMO parameter sets corresponds to a corresponding panel state.

8. The method according to any one of claims 1 to 7, further comprising: Receive at least one of downlink control information (DCI) or a media access control-control element (MAC-CE), wherein the DCI triggers a non-periodic beam report for STxMP, and wherein the MAC-CE triggers at least one of a semi-persistent beam report for STxMP or an update of the one or more uplink MIMO parameter sets.

9. The method according to any one of claims 1 to 8, further comprising: A second ACK / NACK feedback is sent in response to at least one of the control signaling indicating the one or more uplink MIMO parameter sets or the MAC-CE updating the one or more uplink MIMO parameter sets.

10. The method according to any one of claims 1 to 9, further comprising: receiving a transmission configuration indicator (TCI) update for an uplink beam indication; as well as A third ACK / NACK feedback for the TCI update indicated by the uplink beam is sent in response to a decoding operation associated with receiving the TCI update.

11. The method of any one of claims 1 to 10, further comprising: Communicating with the network entity based on a parameter set of the one or more uplink MIMO parameter sets corresponding to the panel status indicated in the panel status update report.

12. A method of wireless communication at a network entity, comprising: sending control signaling for reception of a report associated with simultaneous transmission of multiple panels (STxMP) by the UE to a user equipment (UE), wherein the control signaling indicates at least one of: a reported amount of uplink beams for the report, one or more downlink reference signals to be measured for the report, inhibit timer information for the reception of the report, or uplink resources for the reception of the report; as well as Based on a trigger condition, the report is received from the UE in accordance with the control signaling, wherein the report corresponds to at least one of a beam report for STxMP or a panel status update report for STxMP.

13. The method of claim 12, further comprising: The one or more downlink reference signals are sent to the UE for one or more activated panels.

14. The method of any one of claims 12 to 13, further comprising: Receive a UE capability report indicating one or more UE capabilities for the report, wherein the one or more UE capabilities include at least one of: a first maximum number of supported synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources for the report, a second maximum number of supported SSBs or CSI-RS resources in a time slot of the report, a third maximum number of the one or more activated panels at the UE, or a number of antenna ports for each activated panel at the UE.

15. The method of any one of claims 12 to 14, further comprising: receiving a scheduling request for the report; as well as An uplink grant for receiving the report from the UE is sent in response to receiving the scheduling request.

16. A method as described in any one of claims 12 to 15, wherein the beam report for STxMP includes at least one of: beam quality, panel information, or a group of beams associated with STxMP indicated by one or more indices of the one or more downlink reference signals.

17. The method of any one of claims 12 to 16, wherein the control signaling further indicates one or more parameter sets in an uplink multiple-input multiple-output (MIMO) parameter set, wherein at least one parameter set in the one or more uplink MIMO parameter sets corresponds to a predefined panel state, or each parameter set in the one or more uplink MIMO parameter sets corresponds to a corresponding panel state.

18. The method of any one of claims 12 to 17, further comprising: Sending at least one of downlink control information (DCI) or media access control-control element (MAC-CE), wherein the DCI triggers aperiodic beam reporting for STxMP, and wherein the MAC-CE triggers at least one of semi-persistent beam reporting for STxMP or an update of the one or more uplink MIMO parameter sets.

19. A wireless communication device comprising a memory and at least one processor, the at least one processor being coupled to the memory and configured to implement the method according to any one of claims 1 to 18.

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