UE reporting for uplink simultaneous multiple panel transmissions

Abstract

A system, device, apparatus, and method are provided for user equipment (UE) reporting of a multiple-panel simultaneous transmission STxMP, comprising a computer program encoded on a storage medium. A UE (102) receives (604) control signaling from a network entity (NE) (104) for transmitting (616) a report associated with the STxMP. The control signaling indicates at least one of a reporting quantity of an uplink UL beam for the report, one or more DL reference signals to be measured for the report, inhibit timer information for transmitting the report (616), or UL resources for transmitting the report (616). The UE transmits (616) a report to the NE (104) in accordance with the control signaling based on a trigger condition. The report corresponds to at least one of a beam report of the multiple-panel simultaneous transmission STxMP or a panel status update report of the STxMP.

Description

[Technical Field]

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

[0002] The 3rd Generation Partnership Project (3GPP®) is defining an air interface called 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 provides improved data rates, reduced latency, and / or increased capacity compared to other types of wireless communication systems. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2022 / 141695 Summary of the Invention [Problem to be solved by the invention]

[0004] Wireless communication systems may 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) technology, that support communication with multiple user equipment (UE). Mobile broadband improvements are useful in continuing the advancement of such wireless communication technologies. For example, user equipment (UE) simultaneously activating multiple uplink transmission panels may improve throughput or reduce error rates in certain situations. However, in other situations, user equipment (UE) transmissions on multiple antenna panels may result in reduced performance or power efficiency without significant benefits in throughput or error rate. [Means for solving the problem]

[0005] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects. It does not identify key or critical elements of all aspects, nor does it delineate 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 the more detailed description that is presented later.

[0006] A network entity, such as a base station or a unit of a base station, may schedule a user equipment (UE) to simultaneously transmit uplink signals via multiple beams if the UE is equipped with multiple antenna panels. Such a technique may be known as simultaneous transmission from multiple panels (STxMP). If the UE has multiple panels, repeatedly activating multiple physical uplink panels for simultaneous STxMP transmission may increase power consumption in the UE. In some cases, the UE may not derive significant communication benefit from simultaneously activating multiple uplink panels. For example, if the UE is located near a cell center with a strong single channel cluster, the UE's uplink beam may not have sufficient signal strength in a different channel cluster associated with a different network entity / base station that is far away. In a further example, if the UE's multiple uplink beams have sufficient signal strength in the same channel cluster, the multiple beams may be associated with the same physical uplink transmission panel in the UE, rather than different physical uplink transmission panels for each beam. Therefore, activating multiple panels may reduce power efficiency at the user equipment UE, and repeatedly activating and deactivating multiple physical uplink panels may cause the panels to overheat and degrade the performance of the user equipment UE.

[0007] In some examples, a network entity may need to be aware of a user equipment UE panel status change (e.g., activation / deactivation) because the status change may affect the state of a transmission configuration indicator (TCI) (e.g., if only one panel is active, the user equipment UE cannot transmit two beams simultaneously) and / or precoder selection (e.g., the user equipment UE cannot transmit uplink signals from more layers than are associated with the activated panel(s)). The network entity may trigger a beam report without receiving panel information from the user equipment UE, but the trigger may not be appropriately timed for multiple-panel simultaneous transmission STxMP. For example, without panel status information, the network entity may not have information to set appropriate timing (e.g., based on a change in the user equipment UE's panel status) for beam reporting periodicity and beam reporting slot offset. Aspects of the present disclosure address the above and other deficiencies of network-triggered beam reporting associated with user equipment UE panel information by configuring user equipment UE-triggered beam reporting / user equipment UE assistance information reporting associated with user equipment UE panel information and / or control signaling to indicate a downlink precoder associated with a change in user equipment UE panel status.

[0008] According to some aspects, a user equipment (UE) receives control signaling from a network entity for transmission of a report associated with a simultaneous multiple-panel transmission STxMP. The control signaling indicates at least one of a reporting quantity of an uplink beam of the report, one or more downlink reference signals to be measured for the report, inhibit timer information for an uplink scheduling request, or uplink resources for transmission of the report. The user equipment (UE) transmits the report associated with the simultaneous multiple-panel transmission STxMP to the network entity based on a trigger condition. The report corresponds to at least one of a beam report of the simultaneous multiple-panel transmission STxMP or a panel status update report of the simultaneous multiple-panel transmission STxMP.

[0009] According to some aspects, a network entity transmits control signaling to a user equipment UE comprising the above indication. The network entity optionally transmits a downlink reference signal consistent with the associated control signaling indication. The network entity receives the above simultaneous multi-panel transmission STxMP report from the user equipment UE on the indicated uplink resources.

[0010] To the accomplishment of the foregoing and related ends, one or more aspects correspond to the features described hereinafter and particularly pointed out in the claims. The one or more aspects may be implemented by apparatus, methods, means for practicing a method, and / or non-transitory computer-readable media. The following description and the drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are indicative of but a few of the various ways in which the principles of the various aspects may be employed. [Brief explanation of the drawings]

[0011] [Figure 1] 1 shows a diagram of a wireless communication system comprising multiple user equipments (UEs) and network entities communicating via one or more cells. [Figure 2] 1A and 1B show diagrams of simultaneous downlink reception from one or more transmit / receive points (TRPs). [Figure 3] 1A and 1B show diagrams of simultaneous multiple panel transmission (STxMP) of a user equipment UE to one or more transmission / reception points TRP. [Figure 4] A and B show uplink transmissions based on one or more strongest beams from the same panel of the user equipment UE. [Figure 5] This is a signaling diagram for network-triggered beam reporting for multi-panel simultaneous transmission STxMP. [Figure 6]1A and 1B are signaling diagrams of user equipment (UE) triggered beam / panel reporting for simultaneous multiple panel transmission STxMP. [Figure 7] 1A and 1B are signaling diagrams illustrating procedures for communicating based on uplink multiple-input multiple-output (MIMO) parameters after a change in user equipment UE panel status; [Figure 8] 2 is a flowchart of a wireless communication method in a user equipment UE. [Figure 9] 1 is a flowchart of a wireless communication method in a network entity. [Figure 10] FIG. 1 illustrates an example of a hardware implementation of an exemplary user equipment (UE) device. [Figure 11] FIG. 2 illustrates an example of a hardware implementation of one or more exemplary network entities. DETAILED DESCRIPTION OF THE INVENTION

[0012] FIG. 1 shows a diagram 100 of a wireless communication system associated with multiple cells 190. The wireless communication system includes user equipment (UE) 102 and base stations 104, with some base stations 104c including an aggregated base station architecture and other base stations 104a-104b including a separated base station architecture. The aggregated base station architecture includes a radio unit (RU) 106, a distributed unit (DU) 108, and a central unit (CU) 110 configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node. The separated base station architecture utilizes a protocol stack that is physically or logically distributed across two or more units (e.g., the radio unit RU 106, the distributed unit DU 108, and the central unit CU 110). For example, the central unit CU 110 is implemented within the RAN node, and one or more distributed units DU 108 may be co-located with the central unit CU 110 or alternatively may be geographically or virtually distributed across one or more other RAN nodes. The distributed unit DU 108 may be implemented to communicate to one or more radio units RU 106. Each of the radio units RU 106, the distributed unit DU 108, and the central unit 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).

[0013] The operation and / or network design of the base station 104 may be based on the aggregation characteristics of base station functions. For example, a separated base station architecture is utilized in a virtualized radio access network (vRAN), which may also be referred to as an integrated access backhaul (IAB) network, an open radio access network (O-RAN) network, or a cloud radio access network (C-RAN). Separation may include distributing functions across two or more units at various physical locations, as well as virtually distributing the functions of at least one unit, thereby enabling flexibility in network design. Various units in a separated base station architecture or a separated RAN architecture may be configured for wired or wireless communication with at least one other unit. For example, the central unit CU 110a communicates with the distributed units DUs 108a-108b via respective midhaul links 162 based on an F1 interface. The distributed units DUs 108a-108b may each communicate with the radio unit RU 106a and the radio units RUs 106b-106c via respective fronthaul links 160. The wireless units RUs 106a-106c may communicate with their respective user equipments UEs 102a-102c and 102s via one or more radio frequency (RF) access links based on the Uu interface. In an example, multiple wireless units RUs 106 and / or base stations 104 may simultaneously serve a user equipment UE 102, e.g., user equipment UE 102a in cell 190a is simultaneously served by the access links of wireless unit RU 106a in cell 190a and base station 104c in cell 190e.

[0014] One or more central units CU 110, such as central unit CU 110a or central unit CU 110d, may communicate directly with the core network 120 via a backhaul link 164. For example, central unit CU 110d communicates to the core network 120 via a backhaul link 164 based on a next-generation (NG) interface. One or more central units CU 110 may also communicate indirectly with the core network 120 via one or more separate base station units, such as a “service management and orchestration” (SMO) framework 116, which may be associated with a near-real-time RAN intelligent controller (RIC) 128 and a non-real-time RIC 118 via an E2 link. The near-real-time RIC 128 may communicate to the “service management and orchestration” SMO framework 116 and / or the non-real-time RIC 118 via an A1 link. The “service management and orchestration” SMO framework 116 and / or the non-real-time RIC 118 may also communicate to an open cloud (O-cloud) 130 via an O2 link. One or more central units CU 110 are further enabled to communicate with each other via the backhaul link 164 based on the Xn interface. For example, the central unit CU 110d of the base station 104c communicates with the central unit 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 may communicate with the central unit CU 110a of the base station 104b via the backhaul link 164 based on the Xn interface.

[0015] The radio unit RU 106, distributed unit DU 108, and central unit CU 110, as well as the near-real-time RIC 128, non-real-time RIC 118, and / or the "Service Management and Orchestration" SMO framework 116, may include (or be coupled to) one or more interfaces configured to send and receive information / signals over a wired or wireless transmission medium. Either the base station 104 or one or more separate base station units may be configured to communicate with one or more other base stations 104 or one or more other separate base station units over a wired or wireless transmission medium. In an example, a processor, memory, and / or controller associated with executable instructions for an interface may be configured to provide communication between the base station 104 and / or one or more distributed base station units over a wired or wireless transmission medium. For example, the wired interface may be configured to transmit and receive information / signals via a wired transmission medium for a fronthaul link 160 between the radio unit RU 106 d and a baseband unit (BBU) 112 of the cell 190 d, or more specifically, for the fronthaul link 160 between the radio unit RU 106 d and the distributed unit DU 108 d, etc. The baseband unit BBU 112 may comprise a distributed unit DU 108 d and a central unit CU 110 d and may have a wired interface configured between the distributed unit DU 108 d and the central unit CU 110 d to transmit and receive information / signals between the distributed unit DU 108 d and the central unit CU 110 d based on the midhaul link 162. In a further example, the wireless interface, which may include a receiver, transmitter, or transceiver (such as an RF transceiver), is configured to transmit and receive information / signals over a wireless transmission medium, for example, for information communicated between the wireless unit RU 106a of cell 190a and the base station 104c of cell 190e via a cross-cell communication beam of the wireless unit RU 106a and the base station 104c.

[0016] One or more higher layer control functions, such as functions related to Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), and Service Data Adaptation Protocol (SDAP), may be hosted in the central unit CU 110. Each control function may be associated with an interface for communicating signals based on one or more other control functions hosted in the central unit CU 110. User plane functions, such as a central unit user plane (CU-UP) function, control plane functions, such as a central unit control plane (CU-CP) function, or a combination thereof, may be implemented based on the central unit CU 110. For example, the central unit CU 110 may have a logical division between one or more CU-UP procedures and / or one or more CU-CP procedures. The CU-UP function, when implemented in an O-RAN configuration, may be based on bidirectional communication with the CU-CP function via an interface, such as an E1 interface (not shown).

[0017] The central unit CU 110 may communicate with the distributed unit DU 108 for network control and signaling. The distributed unit DU 108 is a logical unit of the base station 104 configured to perform one or more base station functions. For example, the distributed unit DU 108 may be enabled to control the operation of one or more radio units RU 106. The distributed unit DU 108 may be enabled to host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, or one or more upper physical (PHY) layers, such as a forward error correction (FEC) module for encoding / decoding, scrambling, and modulation / demodulation. The distributed unit DU 108 may host such functions based on the functional division of the distributed unit DU 108. The distributed unit DU 108 may similarly host one or more lower PHY layers, and each lower layer or module may be implemented based on an interface for communication with other layers and modules hosted in the distributed unit DU 108 or based on a control function hosted in the central unit CU 110.

[0018] The radio unit RU 106 may be configured to implement lower layer functions. For example, the radio unit RU 106 is controlled by the distributed unit DU 108 and may correspond to a logical node hosting RF processing functions or lower layer PHY functions, such as Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction and filtering, etc. The functionality of the radio unit RU 106 may be based on a functional division, such as a lower layer functional division.

[0019] The radio unit RU 106 may transmit and receive over-the-air (OTA) communications with one or more user equipment UEs 102. For example, the radio unit RU 106b in the cell 190b communicates with the user equipment UE 102b in the cell 190b via the first set of communication beams 132 of the radio unit RU 106b and the second set of communication beams 134b of the user equipment UE 102b, which may correspond to inter-cell or cross-cell communication beams. For example, the user equipment UE 102b in the cell 190b may communicate with the radio unit RU 106a in the cell 190a via the third set of communication beams 134a of the user equipment UE 102b and the radio unit RU beam set 136 of the radio unit RU 106a. Both real-time and non-real-time functions of the control plane and user plane communications of the radio unit RU 106 may be controlled by the associated distributed unit DU 108. Thus, while the distributed unit DU 108 and the central unit CU 110 are enabled for use in a cloud-based RAN architecture, such as a vRAN architecture, the "Service Management and Orchestration" SMO framework 116 is enabled to support non-virtualized and virtualized RAN network elements. For non-virtualized network elements, the "Service Management and Orchestration" SMO framework 116 can support the deployment of dedicated physical resources for RAN coverage, which may be managed via an operation and maintenance (O&M) interface, such as an O1 interface. For virtualized network elements, the "Service Management and Orchestration" SMO framework 116 interfaces with a cloud computing platform, such as an open cloud O-cloud 130, via an O2 link (e.g., a cloud computing platform interface) to manage the network elements. The virtualized network elements may include, but are not limited to, a radio unit RU 106, a distributed unit DU 108, a central unit CU 110, a near-real-time RIC 128, etc.

[0020] The "Service Management and Orchestration" SMO framework 116 may be configured to communicate directly with one or more radio units RU 106 by utilizing an O1 link. The non-real-time RIC 118 of the "Service Management and Orchestration" SMO framework 116 may also be configured to support the functions of the "Service Management and Orchestration" SMO framework 116. For example, the non-real-time RIC 118 implements logical functions that enable control of non-real-time RAN functions and resources, near-real-time RIC 128 functions / applications, and / or artificial intelligence / machine learning (AI / ML) procedures. The non-real-time RIC 118 can communicate with (or be coupled to) the near-real-time RIC 128 via an A1 interface, etc. The near-real-time RIC 128 may implement logical functions that enable control of near-real-time RAN functions and resources based on data collection and interaction via an E2 interface, such as the E2 interface between the near-real-time RIC 128 and the central unit CU 110a and the distributed units DU 108b.

[0021] 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 open cloud O-cloud 130 via the O2 link for deployment of the AI / ML model to the real-time RIC 128 via the A1 link. The near-real-time RIC 128 may perform near-real-time functions by utilizing parameters and / or other information received from the non-real-time RIC 118 or the “Service Management and Orchestration” SMO framework 116 via the A1 link. The near-real-time RIC 128 and the non-real-time RIC 115 may be configured to adjust RAN performance. For example, the non-real-time RIC 116 monitors patterns and long-term trends to improve RAN performance. The non-real-time RIC 116 may also deploy the AI / ML model to take corrective action via the “Service Management and Orchestration” SMO framework 116, such as initiating a reconfiguration of the O1 link or instructing management procedures for the A1 link.

[0022] Any combination of the radio unit RU 106, the distributed unit DU 108, and the central unit CU 110, or any individual reference thereto, may correspond to a base station 104. Thus, the base station 104 may include at least one of the radio unit RU 106, the distributed unit DU 108, or the central unit CU 110. The base station 104 provides the user equipment UE 102 with access to the core network 120. That is, the base station 104 may relay communications between the user equipment UE 102 and the core network 120. The base station 104 may be associated with a macrocell for high-power cellular base stations and / or a small cell for low-power cellular base stations. For example, cell 190e may correspond to a macrocell, and cells 190a-190d may correspond to small cells. Small cells include femtocells, picocells, microcells, etc., and a cellular structure comprising at least one macrocell and at least one small cell may be referred to as a "heterogeneous network."

[0023] Transmissions from the user equipment UE 102 to the base station 104 / radio unit RU 106 are referred to as uplink (UL) transmissions, and transmissions from the base station 104 / radio unit RU 106 to the user equipment UE 102 are referred to as downlink (DL) transmissions. Uplink transmissions are also sometimes referred to as reverse link transmissions, and downlink transmissions are also sometimes referred to as forward link transmissions. For example, the radio unit RU 106d uses the antenna of the base station 104c of the cell 190d to send downlink / forward link communications to the user equipment UE 102d and receive uplink / reverse link communications from the user equipment UE 102d based on the Uu interface, which is associated with the access link between the user equipment UE 102d and the base station 104c / radio unit RU 106d.

[0024] The communication link between the user equipment UE 102 and the base station 104 / radio unit RU 106 may be based on multiple-input multiple-output (MIMO) antenna technology with spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be associated with one or more carriers. The user equipment UE 102 and the base station 104 / radio unit RU 106 may utilize a spectrum bandwidth of Y_MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.) per allocated carrier for a total carrier aggregation of up to Yx_MHz, where x component carriers (CCs) are used for communication in each direction of the uplink and downlink. The carriers may or may not be adjacent to each other along the frequency spectrum. In an example, the uplink and downlink carriers may be allocated asymmetrically, with more or fewer carriers allocated to either the uplink or downlink. The component carriers 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 as a secondary cell (SCell).

[0025] Some user equipment UEs 102, such as user equipment UEs 102a and 102s, may perform device-to-device (D2D) communications via sidelinks. For example, sidelink communications / D2D links utilize spectrum from a wireless wide area network (WWAN) associated with uplink and downlink communications. Sidelink communications / D2D links may also communicate information between user equipment UEs 102a and 102s using one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and / or a physical sidelink control channel (PSCCH). Such sidelink / D2D communications may be performed via various wireless communication systems, such as a Wireless Fidelity (Wi-Fi) system, a Bluetooth® system, a Long Term Evolution (LTE) system, a New Radio (NR) system, etc.

[0026] The electromagnetic spectrum is often subdivided into different classes, bands, channels, etc. based on the different frequencies / wavelengths associated with the electromagnetic spectrum. Fifth-generation (5G) NR is generally associated with two operating bands, referred to as Frequency Range 1 (FR1) and Frequency Range 2 (FR2). FR1 ranges from 410 MHz to 7.125 GHz, and FR2 ranges from 24.25 GHz to 52.6 GHz. While portions of FR1 actually extend above 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. In contrast, FR2 is often referred to as the "millimeter wave" (mmWave) band. FR2 is a distinct but close subset of the "extremely high frequency" (EHF) band, also known as the "millimeter wave" band, which ranges from 30 GHz to 300 GHz. Frequencies between FR1 and FR2 are often referred to as "mid-band" frequencies. The mid-band operating band is sometimes referred to as Frequency Range 3 (FR3), which ranges from 7.125 GHz to 24.25 GHz. Frequency bands within FR3 may include characteristics of FR1 and / or FR2. Thus, the functionality of FR1 and / or FR2 may extend to mid-band frequencies. Higher operating bands have been identified to extend 5G NR communications beyond the 52.6 GHz associated with the upper limit of FR2. Three of these higher operating bands include FR2-2, which ranges from 52.6 GHz to 71 GHz, FR4, which ranges from 71 GHz to 114.25 GHz, and FR5, which ranges from 114.25 GHz to 300 GHz. The upper limit of FR5 corresponds to the upper limit of the EHF band. Thus, unless otherwise specified herein, the term "sub-6 GHz" may refer to frequencies below 6 GHz within FR1 or may include mid-band frequencies. Furthermore, unless otherwise specified herein, the term "millimeter wave" or mmW refers to frequencies that may include mid-band frequencies and may reside within FR2, FR4, FR2-2, and / or FR5, or may reside within the EHF band.

[0027] The user equipment UE 102 and the base station 104 / radio unit RU 106 may each include multiple antennas. The multiple antennas may correspond to antenna elements, antenna panels, and / or antenna arrays that may facilitate beamforming operations. For example, the radio unit RU 106b transmits downlink beamforming signals to the user equipment UE 102b based on the first set of beams 132 in one or more transmit directions of the radio unit RU 106b. The user equipment UE 102b may receive downlink beamforming signals from the radio unit RU 106b based on the second set of beams 134b in one or more receive directions of the user equipment UE 102b. In a further example, the user equipment UE 102b may also transmit uplink beamforming signals to the radio unit RU 106b based on the second set of beams 134b in one or more transmit directions of the user equipment UE 102b. The wireless unit RU 106b may receive uplink beamforming signals from the user equipment UE 102b in one or more receive directions of the wireless unit RU 106b. The user equipment UE 102b may perform beam training to determine optimal receive and transmit directions of the beamforming signals. The transmit and receive directions of the user equipment UE 102 and the base station 104 / wireless unit RU 106 may or may not be the same. In a further example, beamforming signals may be communicated between the first base station 104c and the second base station 104b. For example, the wireless unit RU 106a in the cell 190a may transmit beamforming signals to the base station 104c in the cell 190e based on the wireless unit RU beam set 136 in one or more transmit directions of the wireless unit RU 106a. The base station 104c in the cell 190e may receive beamforming signals from the wireless unit 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 beamforming signals to the wireless unit RU 106a based on the base station beam set 138 in one or more transmit directions of the base station 104c.The wireless unit RU 106a may receive beamforming signals from the base station 104c of the cell 190e based on the wireless unit RU beam set 136 in one or more receive directions of the wireless unit RU 106a.

[0028] The base station 104 may include and / or be referred to as a next generation evolved Node B (ng-eNB), second generation NB (gNB), evolved NB (eNB), access point, base transceiver station, radio base station, radio transceiver, transmit / receive function, basic service set (BSS), enhanced service set (ESS), transmit / receive point (TRP), network node, network entity, network equipment, or other related terms. The base station 104 or entities at the base station 104 may be implemented as an IAB node, a relay node, a sidelink node, an aggregated (monolithic) base station with a radio unit RU 106, a distributed unit DU 108, and a baseband unit BBU with a central unit CU 110, or as a separated base station 104b with a radio unit RU 106 and one or more distributed units DU 108 and / or central units CU 110. The set of aggregated or separated base stations 104a-104c may be referred to as a Next Generation Radio Access Network (NG-RAN).

[0029] 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 Information 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 the Gateway Mobile Location Information Center GMLC 125 and the Location Management Function LMF 126 as well as other functional entities. For example, the one or more location servers may include one or more location / positioning servers, which may include one or more of a Position Determination Entity (PDE), a Serving Mobile Location Center (SMLC), a Mobile Positioning Center (MPC), etc., in addition to the Gateway Mobile Location Information Center GMLC 125 and the Location Management Function LMF 126.

[0030] The access and mobility management function AMF 121 is a control node that handles signaling between the user equipment UE 102 and the core network 120. The access and mobility management function AMF 121 supports registration management, connection management, mobility management, and other functions. The SMF 122 supports session management and other functions. The user plane function UPF 123 supports packet routing, packet forwarding, and other functions. The unified data management UDM 124 supports authentication and key agreement (AKA) credential generation, user identity processing, access authorization, and subscriber management. The gateway mobile location center GMLC 125 provides an interface for clients / applications (e.g., emergency services) to access user equipment UE positioning information. The location management function LMF 126 receives measurements and aiding information from the next generation radio access network NG-RAN and the user equipment UE 102 via the access and mobility management function AMF 121 to calculate the location of the user equipment UE 102. The next generation radio access network (NG-RAN) may utilize one or more positioning methods to determine the location of the user equipment (UE) 102. Positioning the user equipment (UE) 102 may include signal measurements, position estimation, and optional velocity calculations based on the measurements. The signal measurements may be performed by the user equipment (UE) 102 and / or the serving base station (104) / radio unit (RU) 106.

[0031] The communicated signals may also be based on one or more of a satellite positioning system (SPS) 114, such as a measured signal for positioning. In one example, the satellite positioning system SPS 114 of cell 190c may be in communication with one or more user equipment UE 102, such as user equipment UE 102c, and with one or more base stations 104 / radio units RU 106, such as radio unit RU 106c. The satellite positioning system SPS 114 may correspond to one or more of a global navigation satellite system (GNSS), a global positioning system (GPS), a non-terrestrial network (NTN), or other satellite positioning / location system. The satellite positioning system SPS114 may be associated with LTE signals, NR signals (e.g., based on round trip time (RTT) and / or multi-RTT), wireless local area network (WLAN) signals, terrestrial beacon systems (TBS), sensor-based information, NR enhanced cell ID (NR_E-CID) technology, downlink angle of departure (DL-AoD), downlink time difference of arrival (DL-TDOA), uplink time difference of arrival (UL-TDOA), uplink angle of arrival (UL-AoA), and / or other systems, signals, or sensors.

[0032] User equipment UE 102 may be configured as a mobile phone, smartphone, Session Initiation Protocol (SIP) phone, laptop, personal digital assistant (PDA), satellite radio, GPS, multimedia device, video device, digital audio player (e.g., a Moving Picture Experts Group (MPEG) Audio Layer 3 (MP3) player), camera, game console, tablet, smart device, wearable device, vehicle, utility power meter, gas pump, home appliance, healthcare device, sensor / actuator, display, or other device of similar functionality. Some user equipment UE 102 may be referred to as Internet of Things (IoT) devices, such as a parking meter, gas pump, home appliance, vehicle, healthcare device, etc. User equipment UE 102 may also be referred to as a station (STA), mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communications device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, mobile client, client, or other similar terminology. The term user equipment UE may also apply to a roadside unit (RSU), which may communicate with entities of the base station 104, such as other roadside units RSU_user equipment UE, non-roadside units RSU_user equipment UE, the base station 104, and / or the radio unit RU 106.

[0033] Continuing to refer to FIG. 1, in certain aspects, user equipment UE 102 may include a simultaneous multiple panel transmission (STxMP) component 140 configured to: receive, from a network entity, control signaling for transmission of a report associated with simultaneous multiple panel transmission STxMP, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for transmitting the report, or uplink resources for transmitting the report; and, based on a trigger condition, transmit, to the network entity, a report conforming to the control signaling, the report corresponding to at least one of a beam report of simultaneous multiple panel transmission STxMP or a panel status update report of simultaneous multiple panel transmission STxMP.

[0034] In a particular aspect, the base station 104, or a network entity of the base station 104, may include a reporting configuration component 150 configured to: transmit control signaling to the user equipment UE for reception of a report related to the user equipment UE's simultaneous multiple-panel transmission STxMP, the control signaling indicating at least one of a reporting quantity 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 receive a report from the user equipment UE based on a trigger condition, the report conforming to the control signaling, the report corresponding to at least one of a beam report of the simultaneous multiple-panel transmission STxMP or a panel status update report of the simultaneous multiple-panel transmission STxMP.

[0035] Accordingly, Figure 1 illustrates a wireless communications system that may be implemented in conjunction with aspects of one or more other figures described herein, such as the aspects shown in Figures 2A-7B. Additionally, while the following description may focus on 5G_NR, the concepts described herein are intended to be applicable to other similar areas, such as 5G-Advanced and future versions, LTE, LTE-Advanced (LTE-A), and other wireless technologies.

[0036] 2A and 2B show diagrams 200-250 of downlink simultaneous reception from one or more transmission / reception points TRP (e.g., base stations 104a-104b). The cell radius / coverage area of ​​the base stations 104a-104b may be based on a link budget. The "link budget" refers to an accumulation of total gains and losses in the system, providing a received signal level at a receiver, such as user equipment UE 102b. The receiver may compare the received signal level with the receiver sensitivity to determine whether the channel provides at least a minimum signal strength for signals communicated between the receiver and a transmitter (e.g., user equipment UE 102b and base station 104a-104b).

[0037] To increase the link budget, the base stations 104a-104b and the user equipment UE 102b may activate beam pairs corresponding to higher signal strengths by performing analog beamforming operations. Both the base stations 104a-104b and the user equipment UE 102b maintain multiple beams that can be used for the beam pairs. A beam pair that reduces coupling loss may result in increased coverage gain between the base stations 104a-104b and the user equipment UE 102b. "Coupling loss" refers to a reduction in path loss / power density between a first antenna of the base station 104a-104b and a second antenna of the user equipment UE 102b, and may be expressed in decibels (dB). The beam selection procedure for the beam pairs activated by the base stations 104a-104b and the user equipment UE 102b may be associated with one or more of a beam measurement operation, a beam measurement report, or a beam indication procedure.

[0038] A first type of beam reporting may correspond to non-group-based beam reporting, in which the base stations 104a-104b are enabled to configure the user equipment UE 102b to measure and report Layer 1 Reference Signal Received Power (L1-RSRP) or Layer 1 Signal-to-Interference and Noise Ratio (L1-SINR) for a set of downlink reference signals from the base stations 104a-104b. The downlink reference signals may correspond to synchronization signal blocks (SSBs), channel state information reference signals (CSI-RS), etc., and the user equipment UE 102b may report L1-RSRP or L1-SINR for up to four synchronization signal blocks (SSBs) or four channel state information reference signals (CSI-RS) in each beam reporting instance. A second type of beam reporting may correspond to group-based beam reporting, in which the base stations 104a-104b are enabled to configure the user equipment UE 102b to measure and report L1-RSRP or L1-SINR for multiple groups of synchronization signal blocks SSBs or channel state information reference signals CSI-RSs. Each beam group may include two synchronization signal blocks SSBs or two channel state information reference signals CSI-RSs that the user equipment UE 102 can receive simultaneously.

[0039] The user equipment UE 102b is enabled to simultaneously receive two downlink beams from one or more transmission / reception points TRP (e.g., base stations 104a-104b) using two different panels. For example, the user equipment UE 102b may receive two downlink beams from one or more transmission / reception points TRP as shown in diagrams 200-250. That is, as shown in diagram 200, if the downlink beam / signal is reflected around an object, the user equipment UE 102b may receive a first downlink beam of the strongest channel cluster associated with the base station 104b and a second downlink beam of the second strongest channel cluster associated with the same base station 104b. Alternatively, as shown in diagram 250, the user equipment UE 102b may 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). In either case, the user equipment UE102b generates a beam report after receiving two downlink beams from one or more transmission / reception points TRP, and by sending it to one or more transmission / reception points TRP, the one or more transmission / reception points TRP (e.g., base stations 104a-104b) can send control signaling to the user equipment UE102b for beam indication.

[0040] The base stations 104a-104b may indicate a transmission configuration indicator (TCI) state to the user equipment UE 102b via downlink signaling. For example, the base stations 104a-104b may indicate a transmission configuration indicator (TCI) update signaling via a medium access control-control element (MAC-CE) or downlink control information (DCI). A "transmission configuration indicator TCI state" refers to a parameter set for configuring a quasi-co-location (QCL) relationship between antenna ports corresponding to one or more downlink reference signals. For example, the transmission configuration indicator TCI state may indicate a quasi-co-location 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 transmission configuration indicator TCI state may provide beam direction for both downlink and uplink channels / signals.

[0041] Beam indication techniques based on transmission configuration indicator (TCI) signaling may include joint beam indication or separate beam indication. A "joint beam indication" refers to a single / joint transmission configuration indicator (TCI) state used to update the beams of both downlink and uplink channels / signals. For example, the base stations 104a-104b may indicate the single / joint transmission configuration indicator (TCI) state in downlink transmission configuration indicator (TCI) signaling, which is set based on the DLorJointTCIState parameter to update the beams of both downlink and uplink channels / signals. In the case of transmission configuration indicator (TCI) signaling based on the joint transmission configuration indicator (TCI) state, the base stations 104a-104b are enabled to transmit synchronization signal blocks (SSBs) or channel state information reference signals (CSI-RSs) to indicate the quasi-co-located QCL relationships between downlink channels / signals and the spatial relationships between uplink channels / signals. In a first aspect, the transmitted transmission configuration indicator (TCI) update signaling may correspond to joint beam indication for both downlink and uplink channels / signals.

[0042] "Separate beam indication" refers to a first transmission configuration indicator TCI state used to update a first beam for a downlink channel / signal and a second transmission configuration indicator TCI state used to update a second beam for an uplink channel / signal. For example, the base station 104a-104b may indicate a first transmission configuration indicator TCI state in downlink transmission configuration indicator TCI signaling set based on the DLorJointTCIState parameter to update a first beam for a downlink channel / signal, while indicating a second transmission configuration indicator TCI state in further downlink transmission configuration indicator TCI signaling set based on the UL-TCIState parameter to update a second beam for an uplink channel / signal. When the base station 104a-104b indicates a second transmission configuration indicator TCI state (e.g., an uplink transmission configuration indicator TCI), the downlink reference signal may correspond to a synchronization signal block SSB, a channel state information reference signal CSI-RS, etc. In an example where the second transmission configuration indicator TCI state indicates an uplink reference signal (e.g., an uplink transmission configuration indicator TCI), the uplink reference signal may correspond to a sounding reference signal (SRS), which may indicate a spatial relationship of an uplink channel / signal. In a second aspect, the transmitted transmission configuration indicator TCI update signaling may correspond to either a downlink channel / signal or an uplink channel / signal based on separate beam-pointing techniques.

[0043] The base stations 104a-104b may configure a quasi-co-located QCL type and / or source reference signal for quasi-co-located QCL signaling. The quasi-co-located QCL type of the downlink reference signal may be based on higher layer parameters, such as qcl-Type, in the quasi-co-located QCL-Info parameter. A first quasi-co-located QCL type corresponding to Type A may be associated with Doppler shift, Doppler spread, mean delay, and / or delay spread. A second quasi-co-located QCL type corresponding to Type B may be associated with Doppler shift and / or Doppler spread. A third quasi-co-located QCL type corresponding to Type C may be associated with Doppler shift and / or mean delay. A fourth quasi-co-located QCL type corresponding to Type D may be associated with spatial receive (Rx) parameters. The user equipment UE 102b may indicate the spatial relationship using the same spatial transmit filter used to receive downlink reference signals from the base stations 104a-104b or to transmit uplink reference signals. The transmitted transmission configuration indicator (TCI) update signaling updates the transmission configuration indicator (TCI) states of channels of component carriers (CCs) sharing the transmission configuration indicator (TCI) state indicated in the transmission configuration indicator (TCI) update signaling. The component carriers CCs may be associated with cells included in a cell list. The cell list is configured via RRC signaling, which may indicate parameters such as simultaneous TCI-UpdateList1 parameters, simultaneous TCI-UpdateList2 parameters, simultaneous TCI-UpdateList3 parameters, or simultaneous TCI-UpdateList4 parameters.

[0044] Signaling communicated between the base station 104a-104b and the user equipment UE 102b may be dedicated signaling or non-dedicated signaling. "Dedicated signaling" refers to user equipment UE-specific signaling between the base station 104a-104b and the user equipment 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 cell list sharing an indicated transmission configuration indicator (TCI) state. A PUSCH / PUCCH triggered at the user equipment UE 102b by downlink control information (DCI), activated based on MAC-CE, or configured based on an uplink grant in RRC signaling from the base station 104a-104b is a dedicated signal.

[0045] "Non-dedicated signaling" refers to signaling between a base station 104a-104b and a non-specific user equipment (UE). For example, non-dedicated signaling may correspond to a physical broadcast channel (PBCH), a PDCCH / PDSCH transmission from a base station 104a-104b for a non-specific user equipment (UE), a non-periodic channel state information reference signal (CSI-RS), or a sounding reference signal (SRS) for codebook, non-codebook, or antenna switching. PDCCHs within a control resource set (CORESET) associated with a type 0 / 0A / 0B / 1 / 2 common search space and PDSCHs scheduled by such PDCCHs are non-dedicated signals. However, other PDCCH and PDSCH signaling may be dedicated signals. Search space types may be defined based on standardized protocols.

[0046] 2A and 2B illustrate simultaneous reception by user equipment UE 102b on downlink resources, and FIG. 3A and 3B illustrate simultaneous transmission by user equipment UE 102b on uplink resources.

[0047] 3A and 3B illustrate diagrams 300-350 of simultaneous multiple-panel transmission STxMP of a user equipment UE 102b to one or more transmission / reception points TRP (e.g., one or more base stations 104a-104b). The user equipment UE 102b can be equipped with multiple transmission panels, from which the one or more transmission / reception points TRP / base stations 104a-104b are enabled to schedule the user equipment UE 102b to transmit multiple uplink beams simultaneously. For example, as shown in diagram 300, the base station 104b can schedule the user equipment UE 102b to transmit two uplink beams from different transmission panels of the user equipment UE 102b, such that the user equipment UE 102b is transmitting a first uplink signal to the base station 104b using a first set of layer 1 or a first set of resource blocks (RBs) and is enabled to simultaneously transmit a second uplink signal to the same base station 104b using a second set of layer 2 or a second set of resource blocks RBs. In an example, the uplink beam / signal may have reflected around an object before being received by the base station 104b. Alternatively, as shown in diagram 350, the base stations 104a-104b may schedule the user equipment UE 102b to transmit two uplink beams from different transmit panels of the user equipment UE 102b, such that the user equipment UE 102b is transmitting a first uplink signal to the first base station 104b using a first layer set or a first set of resource blocks RBs, and is enabled to simultaneously transmit a second uplink signal to the second base station 104a using a second layer set or a second set of resource blocks RBs.

[0048] Uplink signals simultaneously transmitted by the user equipment UE 102b to one or more base stations 104a-104b using different beams / panels may be multiplexed based on spatial domain multiplexing (SDM) or frequency domain multiplexing (FDM). As shown in FIGS. 300-350, the network may receive uplink signals associated with different beams / panels via one transmission / reception point TRP (e.g., base station 104b) or multiple transmission / reception points TRP (e.g., base stations 104a-104b). The one or more base stations 104a-104b may indicate two transmission configuration indicator (TCI) states to the user equipment UE 102b and schedule a multi-panel simultaneous transmission STxMP based on SDM techniques. For example, the two transmission configuration indicator (TCI) states may be applicable to different demodulation reference signal (DMRS) ports and different layers. In another example, one or more base stations 104a-104b may schedule a simultaneous multiple panel transmission STxMP based on FDM techniques by indicating two transmission configuration indicator TCI states to the user equipment UE 102b, with the two transmission configuration indicator TCI states being applicable to different sets of resource blocks RB. Figures 2A and 2B and 3A and 3B illustrate simultaneous multiple panel transmission STxMP of the user equipment UE 102b with antenna reciprocity, while Figures 4A and 4B illustrate one or more transmissions from a single panel of the user equipment UE 102b.

[0049] 4A and 4B illustrate uplink transmission(s) based on one or more strongest beams from the same panel of the user equipment UE 102b. While the user equipment UE 102b may be equipped with multiple uplink transmission panels, repeatedly activating multiple uplink transmission panels for simultaneous multi-panel transmission (STxMP) may increase power consumption in the user equipment UE 102b. In some cases, the user equipment UE 102b may not derive significant communication benefit from simultaneously activating multiple uplink panels. For example, as shown in diagram 400, if the user equipment UE 102b is located near the cell center with a single strong channel cluster associated with a first base station 104b, the uplink beam of the user equipment UE 102b may not have sufficient signal strength in a different channel cluster associated with a second base station 104a, which is farther away from the user equipment UE 102b. Therefore, in this example, the throughput benefit from communicating to the second base station 104a is small and insufficient to justify activating the second panel.

[0050] In a further example, as shown in diagram 450, if multiple uplink beams (e.g., the first / second strongest beams) have sufficient signal strength in the same channel cluster of the first base station 104b, the multiple uplink beams may be associated with the same physical uplink transmission panel of the user equipment UE 102b, rather than different physical uplink transmission panels for each beam. Therefore, since the second panel of the user equipment UE 102b may not be used for uplink transmission, activating multiple panels may cause reduced power efficiency in the user equipment UE 102b. Furthermore, repeatedly activating and deactivating multiple physical uplink panels in the user equipment UE 102b may cause the panels to overheat and degrade performance of the user equipment UE 102b.

[0051] One or more base stations 104a-104b may need to be aware of a status change (e.g., activation / deactivation) in the user equipment UE 102b because the status change may affect the base station's transmission configuration indicator (TCI) state assignment (e.g., the user equipment UE 102b cannot transmit two beams simultaneously if only one panel is active) and / or precoder selection (e.g., the user equipment UE 102b cannot transmit uplink signals from more layers than are associated with the activated panel(s)). One or more base stations 104a-104b may trigger a beam report without receiving panel information from the user equipment UE 102b, but the trigger may not be appropriately timed for multiple-panel simultaneous transmission STxMP. For example, without panel status information, the one or more base stations 104a-104b may not have information to set appropriate timing for beam reporting periodicity and beam reporting slot offset (e.g., based on a change in the user equipment UE's panel status). Therefore, user equipment UE-triggered and / or network-triggered beam reporting of user equipment UE panel information and / or control signaling to indicate downlink precoders associated with panel status changes in user equipment UE 102b may improve simultaneous multiple-panel transmission STxMP techniques. Figures 2A-4B illustrate physical transmissions from one or more panels of user equipment UE 102b, with Figure 4 focusing on situations where simultaneous multiple-panel transmissions may be problematic. Figures 5 and 6A and 6B illustrate physical transmission reporting procedures to support user equipment UE timely reporting of various types of situations.

[0052] 5 is a signaling diagram 500 of network-triggered beam reporting for multiple-panel simultaneous transmission STxMP. In some examples, the user equipment UE 102 may transmit 502 a user equipment UE capability report to the network entity 104 indicating the user equipment UE capability for generating / transmitting a network-triggered beam report for multiple-panel simultaneous transmission STxMP. The one or more user equipment UE capabilities may correspond to any of a first maximum number of synchronization signal block SSB / channel state information reference signal CSI-RS resources configured for multiple-panel simultaneous transmission STxMP beam reporting, a second maximum number of synchronization signal block SSB / channel state information reference signal CSI-RS resources in a slot for multiple-panel simultaneous transmission STxMP beam reporting, a third maximum number of active transmit (Tx) panels in the user equipment UE 102, or the number of antenna ports for each transmit Tx panel. The one or more user equipment UE capabilities may be counted per CC, per band, per band combination, or per user equipment UE. One or more user equipment UE capabilities may be reported / transmitted (502) per feature set, per band, per band combination, or per user equipment UE. The network entity 104 may receive the one or more user equipment UE capabilities in a user equipment UE capability report or from a core network entity such as an Access and Mobility Management Function (AMF). In another example, the network entity 104 may receive the one or more user equipment UE capabilities from a second non-core network entity, such as a second base station, via a backhaul link.

[0053] The network entity 104 may transmit 504 control signaling to the user equipment UE 102 for beam reporting of the multiple-panel simultaneous transmission STxMP. The beam report may be based on measurements at the user equipment UE 102 of one or more downlink reference signals and may indicate a reported quantity of uplink beams used for the multiple-panel simultaneous transmission STxMP. Alternatively, the network entity 104 may transmit 504 the control signaling to the user equipment UE 102 via a non-core network entity, such as a base station via a backhaul link. As used herein, an uplink panel or user equipment UE_transmit Tx panel refers to a user equipment UE antenna panel used for uplink transmission. One or more transmit-related components (e.g., power amplifiers) associated with the uplink panel may be used to switch the uplink panel on or off. In some implementations, the user equipment UE 102 may receive downlink signaling within the panel, while in other implementations, the user equipment UE 102 may not receive downlink signaling within the panel.

[0054] The network entity 104 may configure one or more parameters for beam reporting of simultaneous multiple panel transmission STxMP via RRC signaling (e.g., via channel state information CSI-ReportConfig). The RRC signaling may indicate an RRC reconfiguration message from the network entity 104 to the user equipment UE 102 or a system information block (SIB) to be transmitted from the network entity 104 to the user equipment UE 102, where the system information block SIB can be a predefined system information block SIB (e.g., SIB1) or a different system information block SIB (e.g., SIB_J, where J corresponds to an integer greater than 21). The network entity 104 may configure, in a reporting configuration (e.g., channel state information CSI-ReportConfig), S (e.g., S=2) sets of downlink reference signals (e.g., synchronization signal blocks SSB / channel state information reference signals CSI-RS) for beam reporting of the multi-panel simultaneous transmission STxMP, uplink resources for beam reporting, the number of reported beam groups, and / or the reporting amount of beam reporting of the multi-panel simultaneous transmission STxMP. In some embodiments, the network entity 104 transmits the RRC reconfiguration message to the user equipment UE 102 via a signaling radio bearer (SRB) (e.g., SRB1). In other embodiments, the network entity 104 transmits the RRC reconfiguration message to the user equipment UE 102 via a non-core network entity, such as a base station, via a backhaul link.

[0055] The RRC signaling indicates one or more of a flag (e.g., type2-groupBasedBeamReporting) enabling beam reporting for the multi-panel simultaneous transmission STxMP, S sets (e.g., S=2) of synchronization signal block SSB / channel state information reference signal CSI-RS resources for beam reporting for the multi-panel simultaneous transmission STxMP, up to S (e.g., S=2) sets of interference measurement resources (IMR), the number of reported beam groups, or a reporting amount related to the beams of the multi-panel simultaneous transmission STxMP, thereby allowing the user equipment UE102 to report tx panel information in addition to the beam index and / or beam quality (e.g., L1-RSRP or L1-SINR). Other RRC parameters may include nrofReportedGroups, used to indicate the number of reported beam groups; reportquantity, used to indicate the reporting quantity; csi-SSB-ResourceSetListExt, used to configure a second set of synchronization signal blocks SSB for channel measurement; csi-Channel State Information Reference Signal CSI-RS-ResourceSetListExt, used to configure a second set of non-zero power (NZP) IMRs or NZP_Channel State Information Reference Signals CSI-RS for channel measurement; csi-IM-ResourceSetListExt, used to configure a second set of zero power (ZP) IMRs; and type2GroupBasedBeamReporting, used to enable beam reporting for multiple panel simultaneous transmission STxMP.

[0056] The network entity 104 may send 506 a MAC-CE to the user equipment UE 102 to trigger semi-persistent beam reporting for the simultaneous multiple panel STxMP, or may send 506 downlink control information DCI to the user equipment UE 102 to trigger aperiodic beam reporting for the simultaneous multiple panel STxMP. In a further embodiment, the user equipment UE 102 may send periodic beam reporting for the simultaneous multiple panel STxMP based on a periodicity and slot offset configured by the network entity 104 through RRC signaling (not shown). After the user equipment UE 102 receives (504) control signaling to configure, and possibly trigger, beam reporting for a multi-panel simultaneous transmission STxMP, or optionally receives (506) a MAC-CE / DCI (or possibly an RRC message) to trigger beam reporting for a multi-panel simultaneous transmission STxMP, the user equipment UE 102 is enabled to receive (508) and measure (510) one or more downlink reference signals using the active user equipment UE panel(s).

[0057] The one or more downlink reference signals that the user equipment UE 102 receives (508) from the network entity 104 enable the user equipment UE 102 to activate one or more user equipment UE panels to determine at least one group of network beams to apply to the one or more downlink reference signals that the user equipment UE 102 can use to pair with uplink signal transmissions. The user equipment UE 102 may report transmit Tx panel information to the network entity 104 for each group of downlink reference signals using configured uplink resources.

[0058] The user equipment UE 102 transmits (516) to the network entity 104 a beam report for the simultaneous multi-panel transmission STxMP comprising at least one beam group indicated by downlink reference signal index(es) to which the user equipment UE 102 is enabled to simultaneously transmit uplink signals, corresponding beam qualities, and user equipment UE panel-related information. The user equipment UE 102 may report M groups of beams in the beam report transmitted (516) to the network entity 104, where M may be predefined (e.g., M=1) or may be set by the network entity 104 via RRC signaling, such as transmitted (504) control signaling. For each beam group, the user equipment UE 102 may report N downlink reference signal indices (e.g., N synchronization signal block SSB resource indicators (SSBRIs) or channel state information reference signal 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 used for beam reporting of the multiple panel simultaneous transmission STxMP, where each downlink reference signal is selected from the set of downlink reference signals configured by the network entity 104 through RRC signaling. If the channel state information reference signal CSI-RS resources in the channel state information reference signal CSI-RS resource set correspond to the same port(s) (e.g., if the RRC parameter repetition for the channel state information reference signal CSI-RS resource set is "on"), the user equipment UE 102 may not repeatedly report the downlink reference signal index of the channel state information reference signal CSI-RS resource set for channel state information reference signal CSI-RS-based beam reporting to the network entity 104.

[0059] The user equipment UE 102 may also report, for each beam group, an L1-RSRP or an L1-SINR for each downlink reference signal having the reported downlink reference signal index. In a further example, the user equipment UE 102 reports user equipment UE_transmit Tx panel information for the N downlink reference signals in each beam group. The user equipment UE 102 is enabled to report whether the N downlink reference signals correspond to the same user equipment UE_transmit Tx panel or the same user equipment UE_Tx beam. In another example, the user equipment UE 102 reports, in a beam report transmitted 516 to the network entity 104, a first maximum number of uplink transmission layers, a second maximum number of PUSCH antenna ports for the N downlink reference signals, or a third maximum number of sounding reference signal SRS resource sets for simultaneous transmission. If N downlink reference signals correspond to one user equipment UE_transmit Tx panel, the user equipment UE 102 may report to the 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 user equipment UE_transmit Tx panels, the user equipment UE 102 may report that the first maximum number of uplink transmission layers or the maximum number of PUSCH antenna ports is equal to 2N.

[0060] The user equipment UE 102 may further report a downlink reference signal resource set indicator to the network entity 104 for each beam group. That is, the user equipment UE 102 may indicate the resource set index of the downlink reference signal having the strongest L1-RSRP or strongest L1-SINR. The user equipment UE 102 may indicate the absolute L1-RSRP or absolute L1-SINR of the strongest downlink reference signal. The user equipment UE 102 may report the differential L1-RSRP or differential L1-SINR from the L1-RSRP or L1-SINR of the reported strongest downlink reference signal as a reference for other reported downlink reference signals. Figure 5 illustrates a network-triggered reporting procedure for simultaneous multiple-panel transmission STxMP, while Figures 6A and 6B illustrate a user equipment UE-triggered reporting procedure for simultaneous multiple-panel transmission STxMP.

[0061] 6A and 6B are signaling diagrams 600 to 650 of user equipment UE triggered beam / panel reports for simultaneous multiple panel transmission STxMP. Specifically, signaling diagram 600 shows user equipment UE triggered beam reports, while signaling diagram 650 shows user equipment UE triggered panel status change / update reports (e.g., reports indicating panels activated / deactivated on user equipment UE 102).

[0062] The user equipment UE 102 may transmit (602) a user equipment UE capability report to the network entity 104 indicating the user equipment UE's capability to generate / transmit user equipment UE-triggered beam / panel report(s) for simultaneous multiple-panel transmission STxMP. The one or more user equipment UE capabilities may correspond to support for a user equipment UE-triggered report transmission inhibit timer, a maximum duration of the user equipment UE-triggered report inhibit timer (if supported), a maximum number of downlink reference signals supported for trigger condition detection, a maximum number of reported downlink reference signal groups supported for user equipment UE-triggered aperiodic reporting, etc. The one or more user equipment UE capabilities may be counted per CC, per band, per band combination, or per user equipment UE. The one or more user equipment UE capabilities may be reported / transmitted (602) per feature set, per band, per band combination, or per user equipment UE. The one or more user equipment UE capabilities may be transmitted to the network entity 104 from various sources described with respect to transmitting (502).

[0063] The network entity 104 is enabled to transmit (604) control signaling to the user equipment UE 102 for a user equipment UE triggered report (e.g., a beam report in FIG. 6A or a user equipment UE panel status report in FIG. 6B) of a simultaneous multiple panel transmission STxMP. For example, the network entity 104 transmits (604) the control signaling to the user equipment UE 102 via a signaling radio bearer SRB (e.g., SRB1). In another example, the network entity 104 transmits (604) the control signaling to the user equipment UE 102 via a non-core network entity, such as a base station, via a backhaul link. The control signaling transmitted (604) to the user equipment UE 102 may indicate at least one of a prohibition timer (activation and duration) and / or uplink resources for transmitting the user equipment UE triggered report. The network entity 104 may set the duration of the prohibition timer for the user equipment UE triggered beam / panel report(s) via RRC signaling. The network entity 104 is also enabled to configure a dedicated scheduling request for the user equipment UE 102 to request 612 / 652 uplink resources for the transmission of 616 / 656 user equipment UE trigger beam / panel report(s) or threshold criteria (e.g., based on support indicated by one or more user equipment UE capabilities) for the user equipment UE 102 to trigger 610 / 611 aperiodic beam / panel report(s) for simultaneous multiple panel transmission STxMP. If the network entity 104 does not configure a scheduling request, the user equipment UE 102 may request 612 / 652 uplink resources based on a scheduling request configured for other communications, such as a contention-based random access (CBRA) procedure.

[0064] The network entity 104 may configure X dedicated scheduling requests, each corresponding to a serving cell or serving cell group. The value of X may be the same as the number of configured serving cells or serving cell groups. The user equipment UE 102 may transmit (612 / 652) scheduling requests corresponding to the serving cells or serving cell groups that trigger beam / panel report(s) from the user equipment UE 102. The network entity 104 may configure one scheduling request per user equipment UE 102, such that in the user equipment UE-triggered beam / panel report(s), the user equipment UE 102 is enabled to report the index of the serving cell or serving cell group to indicate the target serving cell or serving cell group of the beam / panel report(s).

[0065] The user equipment UE 102 may start the inhibit timer after the user equipment UE 102 receives (604) an initial setting for the duration of the inhibit timer for the user equipment UE triggered beam / panel report(s). The user equipment UE 102 may also start (or restart) the inhibit timer after transmitting (616 / 656) one or more user equipment UE triggered beam / panel report(s). As another example, the user equipment UE 102 is enabled to start / reset the inhibit timer after the user equipment UE 102 receives (618 / 658) an acknowledgement (ACK) for the user equipment UE triggered beam / panel report(s) from the network entity 104.

[0066] After receiving 604 the control signaling from the network entity 104, the user equipment UE 102 and the network entity 104 may perform 606 a network-triggered reporting procedure for the multiple-panel simultaneous transmission STxMP, such as the network-triggered reporting procedure shown in FIG. 5. Referring to the signaling diagram 600, the network entity 104 transmits 608 one or more downlink reference signals indicated by the network entity 104 in the previously transmitted 604 control signaling. The user equipment UE 102 is enabled to trigger aperiodic beam reporting by measuring the one or more downlink reference signals for trigger condition detection. In some examples, the one or more downlink reference signals received / measured by the user equipment UE 102 may be associated with the latest transmission configuration indicator (TCI) indication (e.g., uplink beam indication) of the uplink channel of the multiple-panel simultaneous transmission STxMP. If the user equipment UE 102 determines (610) that conditions are met for a user equipment UE triggered beam report based on one or more downlink reference signals received (608) from the network entity 104, the user equipment UE 102 may transmit (612) a scheduling request for a beam report of the multiple panel simultaneous transmission STxMP to the network entity 104. Based on receiving (614) an uplink grant for the beam report from the network entity 104, the user equipment UE 102 transmits (616) a beam report of the multiple panel simultaneous transmission STxMP to the network entity 104.

[0067] The user equipment UE 102 may also be configured to transmit (616) a user equipment UE triggered beam report after the prohibition timer expires. In a further example, the user equipment UE 102 may transmit (616) a user equipment UE triggered beam report if the user equipment UE 102 determines to turn off / deactivate one of the Tx active panels. This may occur as a result of overheating or power saving in the user equipment UE 102. The user equipment UE 102 may also turn on / activate at least one inactive transmit Tx panel to improve uplink performance, which may trigger a user equipment UE triggered beam report. The beam quality (e.g., L1-RSRP or L1-SINR) of the user equipment UE panel corresponding to at least one of the downlink reference signals may be less than a threshold, which may be predefined or configurable based on RRC signaling. The minimum, average, or maximum beam quality (e.g., L1-RSRP or L1-SINR) of the downlink reference signals in the group measured via different user equipment UE_transmit Tx panels may be greater than the minimum, average, or maximum beam quality of the most recent beam report plus a first offset, where the first offset may be predefined or configurable based on RRC signaling. The downlink reference signal received (608) by the user equipment UE 102 may correspond to either the most recent beam report of the simultaneous multiple-panel transmission STxMP or the most recent transmission configuration indicator (TCI) indication of the uplink channel of the simultaneous multiple-panel transmission STxMP. After transmitting (616) the beam report of the simultaneous multiple-panel transmission STxMP, the user equipment UE 102 may receive (618) an acknowledgement (ACK) for the beam report of the simultaneous multiple-panel transmission STxMP in acknowledgement / negative acknowledgement (ACK / NACK) feedback from the network entity 104.

[0068] Referring to signaling diagram 650, after the user equipment UE 102 receives 604 control signaling from the network entity 104 and optionally performs 606 a network-triggered reporting procedure for simultaneous multiple panel transmission STxMP with the network entity 104, the user equipment UE 102 may determine 611 that a user equipment UE triggered panel status reporting condition is met (e.g., based on a change in the activation / deactivation status of at least one user equipment UE_transmit Tx panel as described above). For example, if the user equipment UE 102 determines 611 that the trigger condition for updating / changing the transmit Tx panel status is true, the user equipment UE 102 may transmit 652 a scheduling request for user equipment UE triggered panel status reporting to the network entity 104. The user equipment UE 102 may receive 654 an uplink grant for the user equipment UE panel status report based on the scheduling request sent 652 to the network entity 104, and as a result, the user equipment UE 102 may send 656 a user equipment UE triggered panel status report for multiple simultaneous panel transmission STxMP to the network entity 104. After sending 656 the user equipment UE panel status report for multiple simultaneous panel transmission STxMP, the user equipment UE 102 may receive 658 an acknowledgement ACK for the user equipment UE panel status report for multiple simultaneous panel transmission STxMP in acknowledgement / negative acknowledgement ACK / NACK feedback from the network entity 104.

[0069] The user equipment UE 102 may transmit (656) a user equipment UE trigger panel status report to the network entity 104 as uplink control information (UCI) in a PUCCH or PUSCH transmission. For example, the user equipment UE 102 may transmit (656) a user equipment UE trigger panel status report when an inhibit timer expires. In a further example, the user equipment UE 102 may transmit (656) a user equipment UE trigger panel status report if the user equipment UE 102 decides to turn off / deactivate one of the Tx active panels as a result of overheating or power saving in the user equipment UE 102. The user equipment UE 102 may also turn on / activate at least one inactive transmit Tx panel to improve uplink performance, which may also trigger a user equipment UE trigger panel status report. The user equipment UE 102 may apply the reported user equipment UE_transmit Tx panel status change to multiple beam groups. For example, the user equipment UE may deactivate at least one uplink panel for user equipment UE power saving and report the number of updated / changed active panels to the network entity 104. After receiving the user equipment UE panel status report (656), the network entity 104 may send control signaling to update the uplink configuration.

[0070] The user equipment UE 102 is enabled to transmit 656 an aperiodic panel status report comprising updated / modified user equipment UE_transmit Tx panel status information. For example, the user equipment UE 102 may transmit 656 a user equipment UE triggered panel status report via MAC-CE. If no uplink grant is received for the user equipment UE panel status report, the user equipment UE 102 is enabled to request uplink resources for the MAC-CE-based user equipment UE panel status report of the multiple panel simultaneous transmission STxMP by transmitting a scheduling request to the network entity 102.

[0071] Referring again to both signaling diagrams 600-650, a MAC-CE transmission may include a beam report for a multiple panel simultaneous transmission STxMP, a user equipment UE panel status report for a multiple panel simultaneous transmission STxMP, or updated / changed user equipment UE_transmit Tx panel information. The user equipment UE 102 may transmit (616 / 656) a user equipment UE triggered beam / panel report(s) for a multiple panel simultaneous transmission STxMP via the MAC-CE. The MAC-CE may indicate the serving cell index to which the beam report corresponds, a downlink reference signal index / group index, or a transmit configuration indicator TCI state index, which may be used to indicate the beam group associated with the change in user equipment UE_transmit Tx panel status. The MAC-CE may also indicate, for each reported group of downlink reference signals used to indicate the maximum number of uplink layers, the maximum number of PUSCH antenna ports, the maximum number of sounding reference signal SRS resource sets for simultaneous transmission, and the updated / modified user equipment UE_transmit Tx panel status for each beam group, whether the downlink reference signals were transmitted 608 from the same Tx beam / panel. In a further example, the user equipment UE 102 indicates a serving cell index or a serving cell group index for the user equipment UE panel status report by transmitting 656 a user equipment UE triggered panel status report for simultaneous multiple panel transmission STxMP by the MAC-CE.

[0072] The user equipment UE 102 may send (656) a user equipment UE trigger panel status report for multiple panel simultaneous transmission STxMP via an RRC message (e.g., a user equipment UE assistance information message). For example, the user equipment UE 102 may report a reduction in the number of active transmit Tx panels in an RRC message sent to the network entity 104. The reduction in the number of active transmit Tx panels may be indicated by a reduction in the maximum number of uplink antenna ports or a reduction in the maximum number of sounding reference signal (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 the user equipment UE 102 is allowed to report "port1" or "ports2" if the user equipment UE 102 determines to support and use one active transmit Tx panel, and "ports3" or "ports4" if the user equipment UE 102 determines to support and use two active transmit Tx panels. The candidate value "portsX" indicates X ports. In a further example, the maximum number of uplink antenna ports can be indicated based on the reducedMaxNrofSrsSets-STxMP-FR2-UL parameter or the MaxNrofSrsSets-STxMP-Preference-FR2-UL parameter, where the user equipment UE 102 is allowed to report "set1" if the user equipment UE 102 determines to support and use one active transmit Tx panel, while reporting "sets2" if the user equipment UE 102 determines to support and use two active transmit Tx panels. The candidate value "setsY" indicates Y sets.

[0073] In the case of a user equipment UE triggered beam / panel report transmitted (616 / 656) via uplink control information UCI on the PUCCH or PUSCH, the network entity 104 may transmit (618 / 658) an acknowledgement ACK to the user equipment UE 102 via downlink control information DCI within a dedicated search space or CORESET configured by the network entity 104 through RRC signaling. Alternatively, the network entity 104 may transmit (618 / 658) the acknowledgement ACK via downlink control information DCI associated with a dedicated Radio Network Time Identifier (RNTI) that the network entity 104 may configure through RRC signaling. In the case of a MAC-CE based user equipment UE triggered beam / panel report, the network entity 104 may transmit (618 / 658) an acknowledgement ACK based on downlink control information DCI that schedules the transmission of the PUSCH using the same hybrid automatic repeat request (HARQ) process as used for the previous PUSCH with the MAC-CE of the user equipment UE triggered beam / panel report.

[0074] If the user equipment UE triggered beam / panel report indicates that uplink transmission from a specific panel has been turned off / deactivated, the network entity 104 refrains from sending downlink control information DCI to the user equipment UE 102 that schedules the user equipment UE 102 to transmit and / or receive using the turned off / deactivated panel. If the user equipment UE triggered beam / panel report indicates that uplink transmission from a specific panel has been turned on / activated, the network entity 104 is enabled to send downlink control information DCI to the user equipment UE 102 that schedules the user equipment UE 102 to transmit and / or receive using the turned on / activated panel. Similarly, if the user equipment UE triggered beam / panel report indicates that downlink reception of a specific panel has been turned off / deactivated, the network entity 104 refrains from sending downlink control information DCI to the user equipment UE 102 that schedules the user equipment UE 102 to receive downlink signaling using the turned off / deactivated panel. If the user equipment UE trigger beam / panel report indicates that uplink transmission from a particular panel has been turned off / activated, the network entity 104 is enabled to send downlink control information DCI to the user equipment UE 102, which schedules the user equipment UE 102 to receive downlink signaling using the turned off / activated panel.

[0075] When the network entity 104 (e.g., a base station) includes a central unit CU and a distributed unit DU, the central unit CU may receive a Packet Data Convergence Protocol (PDCP) protocol data unit (PDU) including a user equipment UE trigger beam / panel report from the user equipment UE via the distributed unit DU. Accordingly, the central unit CU obtains the user equipment UE trigger beam / panel report from the PDCP PDU and transmits the user equipment UE trigger beam / panel report to the distributed unit DU. The distributed unit DU may or may not refrain from transmitting downlink control information (DCI) to the user equipment UE 102 based on the activation / deactivation status of the user equipment UE panel. Figures 6A and 6B illustrate beam reporting and user equipment UE panel status reporting for simultaneous multi-panel transmission STxMP. Figures 7A and 7B illustrate communication procedures for simultaneous multi-panel transmission STxMP after the user equipment UE panel status is changed.

[0076] 7A and 7B are signaling diagrams 700-750 illustrating procedures for communicating (780 / 766) based on uplink MIMO parameters after a user equipment UE panel status change (e.g., reported (656) in FIG. 6B). Signaling diagram 700 corresponds to a procedure for selecting an uplink MIMO parameter set based on a change in user equipment UE panel status. The network entity 104 can send (761) control signaling to the user equipment UE 102 to configure one or more uplink MIMO-related parameter sets, each parameter set corresponding to a user equipment UE panel status (e.g., one active transmit Tx panel, two active transmit Tx panels, etc.). For example, the network entity 104 sends (761) the control signaling to the user equipment UE 102 via a signaling radio bearer SRB (e.g., SRB1). In another example, the network entity 104 transmits (761) control signaling to the user equipment UE 102 via a non-core network entity, such as a base station via a backhaul link. After the network entity 104 and the user equipment UE 102 optionally perform (606 / 706) the network-triggered reporting procedure for simultaneous multiple panel transmission STxMP and / or the user equipment UE-triggered reporting procedure for simultaneous multiple panel transmission STxMP, as reflected in Figures 6A and 6B, the network entity 104 may transmit (763) control signaling for uplink MIMO-related parameter set selection (e.g., MAC-CE or downlink control information DCI) to the user equipment UE 102 to configure (780) further communication with the user equipment UE 102.

[0077] Before the network entity 104 sends 763 control signaling to the user equipment UE 102 for uplink MIMO parameter set selection, a default parameter set may be utilized by the user equipment UE 102 and the network entity 104 (e.g., the first parameter set). After the user equipment UE 102 receives 763 the control signaling for uplink MIMO parameter set selection, the user equipment UE 102 may send 765 an acknowledgement ACK to the network entity 104 in acknowledgement / negative acknowledgement ACK / NACK feedback for the control signaling.

[0078] The network entity 104 may transmit (771) a transmission configuration indicator TCI update signaling for uplink beam direction based on the latest beam report of the simultaneous multiple panel transmission STxMP. In some examples, the network entity 104 and the user equipment UE 102 may automatically update / change uplink MIMO parameters based on the latest beam report without control signaling, and the network entity 104 and the user equipment UE 102 may apply uplink MIMO parameters corresponding to the latest reported user equipment UE_transmit Tx panel status. After the user equipment UE 102 receives (771) the transmission configuration indicator TCI update signaling for uplink beam direction, the user equipment UE 102 may transmit (773) an acknowledgement ACK to the network entity 104 in acknowledgement / negation ACK / NACK feedback for the transmission configuration indicator TCI update signaling. The network entity 104 and the user equipment UE 102 may communicate (780) based on the selection of an uplink MIMO-related parameter set corresponding to the change in the user equipment UE panel status.

[0079] The signaling diagram 750 corresponds to an uplink MIMO parameter set update procedure based on a change in user equipment UE panel status. The network entity 104 is enabled to send 754 control signaling to the user equipment UE 102 to configure one or more uplink MIMO-related parameter sets based on a given user equipment UE panel status (e.g., one active transmit Tx panel, two active transmit Tx panels, etc.). For example, the network entity 104 sends 754 the control signaling to the user equipment UE 102 via a signaling radio bearer SRB (e.g., SRB1). In another example, the network entity 104 sends 754 the control signaling to the user equipment UE 102 via a non-core network entity, such as a base station, via a backhaul link. In one example, the network entity 104 may configure the set of uplink MIMO parameters through 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) 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 sounding reference signal SRS configurations (e.g., SSRS-Config), where each PUSCH / SRS configuration corresponds to a user equipment UE_transmit Tx panel status (e.g., one active transmit Tx panel or two active transmit Tx panels).

[0080] After the network entity 104 and the user equipment UE 102 optionally perform the network-triggered reporting procedure for multiple-panel simultaneous transmission STxMP and / or the user equipment UE-triggered reporting procedure for multiple-panel simultaneous transmission STxMP (606 / 706) reflected in Figures 6A and 6B, the network entity 104 may send (759) a MAC-CE to the user equipment UE 102 to update at least one uplink MIMO-related parameter set. For example, the network entity 104 is enabled to update the uplink MIMO parameters based on the most recently received beam / panel report for the multiple-panel simultaneous transmission STxMP using the MAC-CE. The user equipment UE 102 may send (760) an acknowledgement ACK in an acknowledgement / negative acknowledgement ACK / NACK feedback for the MAC-CE to the network entity 104, thereby enabling the user equipment UE 102 and the network entity 104 to initiate (766) communication based on the updated uplink MIMO-related parameters corresponding to the change in the user equipment UE panel status. In a further example, the communication 766 may be based on the transmission of a transmission configuration indicator TCI update signaling (771) from the network entity 104 and the reception of an acknowledgement ACK for the transmission configuration indicator TCI update signaling (773) by the network entity 104, as described with respect to the signaling diagram 700.

[0081] The network entity 104 and the user equipment UE 102 may apply the uplink MIMO parameter set corresponding to the user equipment UE's transmit Tx panel status Y slots after the beam / panel reporting procedure for the beam associated with the indicated transmission configuration indicator TCI state for the uplink channel, where Y may be predefined, configured by the network entity 104 through RRC signaling, or reported by the user equipment UE 102 as a user equipment UE capability. The network entity 104 may further reduce one or more of the configured uplink MIMO parameter sets by transmitting (759) a MAC-CE. For example, the network entity 104 may configure at least one of a serving cell index, a serving cell list index, an uplink bandwidth portion (BWP) index, or a parameter set index via the MAC-CE. The network entity 104 and the user equipment UE 102 may apply the indicated uplink MIMO parameter set Z1 slots after transmission 760 of the acknowledgement ACK for the MAC-CE to the network entity 104, where Z1 may be predefined, configured by the network entity 104 through RRC signaling, or reported by the user equipment UE 102 as a capability of the user equipment UE.

[0082] The network entity 104 is also enabled to reduce one or more of the configured uplink MIMO parameter sets by transmitting downlink control information DCI (not shown). A field of the downlink control information DCI may be used to indicate a parameter set index. The downlink control information DCI may be downlink control information DCI that schedules a PDSCH transmission, and the network entity 104 determines that the downlink control information DCI has been received by the user equipment UE 102 after the network entity 104 has received an acknowledgment ACK for the PDSCH reported by the user equipment UE 102. In a further example, the downlink control information DCI may be downlink control information DCI that schedules a PUSCH transmission, and the network entity 104 determines that the downlink control information DCI has been received by the user equipment UE 102 after the network entity 104 has received the scheduled PUSCH transmission from the user equipment UE 102. In a further example, the downlink control information DCI may be downlink control information DCI that does not schedule a PDSCH or PUSCH transmission, but after the user equipment UE 102 decodes the downlink control information DCI, the user equipment UE 102 sends an acknowledgement ACK to the network entity 104 on the PUCCH resource.

[0083] The network entity 104 and the user equipment UE 102 may apply the indicated uplink MIMO parameter set Z2 slots after transmitting 760 the acknowledgement ACK for the MAC-CE, where Z2 may be predefined, configured by the network entity 104 through RRC signaling, or reported by the user equipment UE 102 as a capability of the user equipment UE. In a further example, the network entity 104 may configure a set of uplink MIMO parameters through RRC signaling and send 759 a MAC-CE to update the parameters. For example, the network entity 104 may configure, via the MAC-CE, a codebook subset (e.g., codebookSubset and codebookSubsetDCI-0-2) indicating a codebook subset for uplink codebook-based transmission, a maximum number of uplink layers (e.g., maxRank and maxRankDCI-0-2), an uplink full power mode (e.g., ul-FullPowerTransmission) used to select an uplink full power transmission mode for PUSCH transmission, and / or a serving cell or serving cell list index. Figures 5-7B illustrate network-triggered and user equipment (UE)-triggered reporting of simultaneous multiple panel transmission STxMP. Figures 8-9 illustrate methods for implementing one or more aspects of Figures 5-7B. Specifically, Figure 8 illustrates an implementation by a user equipment (UE) 102 of one or more aspects of Figures 5-7B. Figure 9 illustrates an implementation by a network entity 104 of one or more aspects of Figures 5-7B.

[0084] Figure 8 shows a flowchart 800 of a wireless communication method in user equipment UE 102. With reference to Figures 1-7B and 10, the method may be performed by user equipment UE 102, user equipment UE device 1002, etc., which may include memory 1024', which may correspond to the user equipment UE 102 or user equipment UE device 1002 entirely or to components of the user equipment UE 102 or user equipment UE device 1002, such as the radio baseband processor 1024 and / or the application processor 1006.

[0085] The user equipment UE 102 may transmit (802) a user equipment UE capability report indicating one or more user equipment UE capabilities for beam / panel reporting, the one or more user equipment UE capabilities comprising at least one of a first maximum number of synchronization signal block (SSB) or channel state information reference signal (CSI-RS) resources for reporting, a second maximum number of synchronization signal block (SSB) or channel state information reference signal (CSI-RS) resources in a slot for reporting, a third maximum number of one or more activated panels at the user equipment UE, or the number of antenna ports for each panel at the user equipment UE. For example, referring to FIG. 5, the user equipment UE 102 transmits (502) a user equipment UE capability report for network-triggered beam reporting of simultaneous multiple-panel transmission STxMP to the network entity 104. Referring to FIGS. 6A and 6B, the user equipment UE 102 transmits (602) a user equipment UE capability report for user equipment UE-triggered reporting of simultaneous multiple-panel transmission STxMP to the network entity 104.

[0086] The user equipment UE 102 receives (804) control signaling for transmitting a report associated with a simultaneous multiple-panel transmission STxMP from a network entity, the control signaling indicating at least one of a reporting quantity of an uplink beam of the report, one or more DL-RSs to be measured for the report, prohibition timer information for transmitting the report, or uplink resources for transmitting the report. For example, with reference to FIG. 5, the user equipment UE 102 receives (504) control signaling for beam reporting of a simultaneous multiple-panel transmission STxMP from the network entity 104, the control signaling including a downlink reference signal for the beam report and a reporting quantity for the beam report. With reference to FIGS. 6A and 6B, the user equipment UE 102 receives (604) control signaling for user equipment UE-triggered reporting of a simultaneous multiple-panel transmission STxMP from the network entity 104, the control signaling including at least one of a prohibition timer and / or uplink resources for the user equipment UE-triggered reporting.

[0087] The user equipment UE 102 may receive 806 at least one of downlink control information DCI or MAC-CE, where the downlink control information DCI triggers aperiodic reporting of the simultaneous multiple-panel STxMP and the MAC-CE triggers at least one of semi-persistent reporting of the simultaneous multiple-panel STxMP and an update to one or more uplink MIMO parameter sets. For example, with reference to FIG. 5, the user equipment UE 102 receives 506 from the network entity 104 a MAC-CE for triggering semi-persistent beam reporting of the simultaneous multiple-panel STxMP or downlink control information DCI for triggering aperiodic beam reporting of the simultaneous multiple-panel STxMP.

[0088] The user equipment UE 102 may receive (808) one or more DL-RSs in one or more activated panels from the network entity, and measurements of the one or more DL-RSs activate a trigger condition. For example, with reference to FIG. 5, the user equipment UE 102 may receive (508) one or more downlink reference signals from the network entity 104 for beam reporting of the multiple-panel simultaneous transmission STxMP. With reference to FIG. 6A, the user equipment UE 102 may receive (608) one or more downlink reference signals for the latest network-triggered beam report or beam indication of the multiple-panel simultaneous transmission STxMP from the network entity 104.

[0089] The user equipment UE 102 may transmit (812) a scheduling request for reporting based on activation of the trigger condition for reporting. For example, referring to A in FIG. 6, the user equipment UE 102 may transmit (612) a scheduling request to the network entity 104 for beam reporting of multiple panel simultaneous transmission STxMP. Referring to B in FIG. 6, the user equipment UE 102 may transmit (652) a scheduling request to the network entity 104 for user equipment UE panel status reporting of multiple panel simultaneous transmission STxMP.

[0090] In response to transmitting the scheduling request, the user equipment UE 102 may receive 814 an uplink grant for transmitting a report to the network entity. For example, referring to FIG. 6A, the user equipment UE 102 receives 614 an uplink grant from the network entity 104 for a beam report for multiple simultaneous panel transmission STxMP. Referring to FIG. 6B, the user equipment UE 102 receives 654 an uplink grant from the network entity 104 for a user equipment UE panel status report for multiple simultaneous panel transmission STxMP.

[0091] Based on the trigger condition, the user equipment UE 102 transmits (816) a report compliant with the control signaling to the network entity, the report corresponding to at least one of a simultaneous multiple-panel STxMP beam report and a simultaneous multiple-panel STxMP panel status update report. For example, with reference to FIG. 5, the user equipment UE 102 transmits (516) a simultaneous multiple-panel STxMP beam report to the network entity 104, the beam report including at least one beam group indicated by downlink reference signal index(es) to which the user equipment UE 102 can simultaneously transmit uplink signals, corresponding beam quality, and user equipment UE panel-related information. With reference to FIG. 6A, the user equipment UE 102 transmits (616) the simultaneous multiple-panel STxMP beam report to the network entity 104. With reference to FIG. 6B, the user equipment UE 102 transmits (656) a simultaneous multiple-panel STxMP user equipment UE panel status report to the network entity 104.

[0092] The user equipment UE 102 may receive 818 acknowledgment / negative acknowledgment ACK / NACK feedback in response to transmitting the report. For example, with reference to Figure 6A, the user equipment UE 102 receives 618 an acknowledgment ACK for the beam report of the multiple panel simultaneous transmission STxMP from the network entity 104. With reference to Figure 6B, the user equipment UE 102 receives 658 an acknowledgment ACK for the user equipment UE panel status report of the multiple panel simultaneous transmission STxMP from the network entity 104. While Figure 8 describes the method from the user equipment UE side of the wireless communication link, Figure 9 describes the method from the network side of the wireless communication link.

[0093] 9 is a flowchart 900 of a wireless communication method in a network entity 104. With reference to FIGS. 1-7B and 11, the method may be performed by one or more network entities 104, which may correspond to a base station or units of a base station, such as the radio unit RU 106, the distributed unit DU 108, the central unit CU 110, the radio unit RU processor 1142, the distributed unit DU processor 1132, or the central unit CU processor 1112. Furthermore, one or more network entities 104 may include memory 1112′ / 1132′ / 1142′, which may correspond to one or more network entities 104 as a whole or to components of one or more network entities 104, such as the radio unit RU processor 1142, the distributed unit DU processor 1132, or the central unit CU processor 1112.

[0094] One or more network entities 104 may receive (902) a user equipment UE capability report indicating one or more user equipment UE capabilities for beam / panel reporting, the one or more user equipment UE capabilities comprising at least one of a first maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources for reporting, a second maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources in a slot for reporting, a third maximum number of one or more activated panels at the user equipment UE, or the number of antenna ports for each panel at the user equipment UE. For example, referring to FIG. 5, the network entity 104 receives (502) a user equipment UE capability report for network-triggered beam reporting of simultaneous multiple-panel transmission STxMP from the user equipment UE 102. Referring to FIGS. 6A and 6B, the network entity 104 receives (602) a user equipment UE capability report for user equipment UE-triggered reporting of simultaneous multiple-panel transmission STxMP from the user equipment UE 102.

[0095] One or more network entities 104 transmit (904) to the user equipment UE control signaling for receiving a report associated with the user equipment UE's simultaneous multiple-panel transmission STxMP, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more DL-RSs to be measured for the report, prohibition timer information for receiving the report, or uplink resources for receiving the report. For example, with reference to FIG. 5, the network entity 104 transmits (504) to the user equipment UE 102 control signaling for beam reporting of the simultaneous multiple-panel transmission STxMP, the beam reporting quantity including a downlink reference signal for the beam report and a reporting quantity for the beam report. With reference to FIGS. 6A and 6B, the network entity 104 transmits (604) to the user equipment UE 102 control signaling for user equipment UE-triggered reporting of the simultaneous multiple-panel transmission STxMP, the beam reporting quantity including at least one of a prohibition timer and / or uplink resources for the user equipment UE-triggered reporting.

[0096] The network entity 104 may transmit (906) at least one of downlink control information DCI or MAC-CE, where the downlink control information DCI triggers aperiodic reporting of the simultaneous multiple-panel STxMP and the MAC-CE triggers at least one of semi-persistent reporting of the simultaneous multiple-panel STxMP and an update to one or more uplink MIMO parameter sets. For example, with reference to FIG. 5, the network entity 104 transmits (506) to the user equipment UE 102 a MAC-CE for triggering semi-persistent beam reporting of the simultaneous multiple-panel STxMP or downlink control information DCI for triggering aperiodic beam reporting of the simultaneous multiple-panel STxMP.

[0097] The one or more network entities 104 may transmit (908) one or more DL-RSs to the user equipment UE of one or more activated panels. For example, with reference to Figure 5, the network entity 104 transmits (508) one or more downlink reference signals to the network entity user equipment UE 102 for beam reporting of the multiple panel simultaneous transmission STxMP. With reference to Figure 6A, the network entity 104 transmits (608) one or more downlink reference signals to the user equipment UE 102.

[0098] One or more network entities 104 may receive 912 a scheduling request for a report based on a trigger condition for the report. For example, referring to Figure 6A, the network entity 104 receives 612 a scheduling request for a beam report for STxMP from the user equipment UE 102. Referring to Figure 6B, the network entity 104 receives 652 a scheduling request for a UE panel status report for STxMP from the user equipment UE 102.

[0099] In response to receiving the scheduling request, one or more network entities 104 may transmit (914) an uplink grant for receiving the report from the user equipment UE. For example, with reference to Figure 6A, the network entity 104 transmits (614) an uplink grant for a beam report of the multiple panel simultaneous transmission STxMP to the user equipment UE 102. With reference to Figure 6B, the network entity 104 transmits (654) an uplink grant for a user equipment UE panel status report of the multiple panel simultaneous transmission STxMP to the user equipment UE 102.

[0100] One or more network entities 104 receive (916) a report compliant with the control signaling from the user equipment UE, the report corresponding to at least one of a multi-panel simultaneous transmission STxMP beam report and a multi-panel simultaneous transmission STxMP panel status update report. For example, with reference to FIG. 5 , the network entity 104 receives (516) a multi-panel simultaneous transmission STxMP beam report from the user equipment UE 102, the beam report including at least one beam group indicated by downlink reference signal index(es) to which the user equipment UE 102 may simultaneously transmit uplink signals, corresponding beam quality, and user equipment UE panel-related information. With reference to FIG. 6A, the network entity 104 receives (616) the multi-panel simultaneous transmission STxMP beam report from the user equipment UE 102. With reference to FIG. 6B, the network entity 104 receives (656) a multi-panel simultaneous transmission STxMP user equipment UE panel status report from the user equipment UE 102.

[0101] One or more network entities 104 may transmit (918) an acknowledgement / negative acknowledgement (ACK / NACK) feedback in response to receiving the report. For example, with reference to FIG. 6A, the network entity 104 transmits (618) an acknowledgement (ACK) for the beam report of the multiple panel simultaneous transmission STxMP to the user equipment UE 102. With reference to FIG. 6B, the network entity 104 transmits (658) an acknowledgement (ACK) for the user equipment UE panel status report of the multiple panel simultaneous transmission STxMP to the user equipment UE 102. The user equipment UE device 1002 is enabled to perform the method of flowchart 800 as described in FIG. 10. As described in FIG. 11, one or more network entities 104 are enabled to perform the method of flowchart 900.

[0102] FIG. 10 is a diagram 1000 illustrating an example of a hardware implementation of an exemplary user equipment UE device 1002. The device 1002 may be user equipment UE 102, a component of user equipment UE, or may implement functionality of user equipment UE. In some aspects, the device 1002 may include a wireless baseband processor 1024 (also referred to as a modem) coupled to one or more transceivers 1022 (e.g., wireless RF transceivers). The wireless baseband processor 1024 may include on-chip memory 1024′. In some aspects, the device 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′.

[0103] The device 1002 may further include, within one or more transceivers 1022, a Bluetooth module 1012, a WLAN module 1014, a satellite positioning system SPS module 1016 (e.g., a GNSS module), and a cellular module 1017. The Bluetooth module 1012, the WLAN module 1014, the satellite positioning system SPS module 1016, and the cellular module 1017 may include on-chip transceivers (TRX) (or receivers (RX) in some cases). The Bluetooth module 1012, the WLAN module 1014, the satellite positioning system SPS module 1016, and the cellular module 1017 may include their own dedicated antennas and / or utilize antenna 1080 for communications. The device 1002 further includes one or more sensor modules 1018 (e.g., barometric pressure sensors / altimeters, inertial management units (IMUs), gyroscopes, and / or motion sensors such as accelerometer(s), light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), acoustic navigation and ranging (SONAR), magnetometers, audio, and / or other technologies used for positioning), an additional memory module 1026, a power source 1030, and / or a camera 1032.

[0104] The wireless baseband processor 1024 communicates via the transceiver(s) 1022 and one or more antennas 1080 to other user equipment UE 102 and / or to a radio unit RU associated with the network entity 104. The wireless baseband processor 1024 and the application processor 1006 may each include a computer-readable medium / memory 1024′, 1006′. An additional memory module 1026 may also be considered a computer-readable medium / memory. Each computer-readable medium / memory 1024′, 1006′, 1026 may be non-transitory. The wireless baseband processor 1024 and the application processor 1006 are each responsible for general processing, which comprises executing software stored in the computer-readable medium / memory. The software, when executed by the wireless baseband processor 1024 / application processor 1006, causes the wireless baseband processor 1024 / application processor 1006 to perform the various functions described. The computer-readable medium / memory may also be used to store data manipulated by the wireless baseband processor 1024 / application processor 1006 when executing software. The wireless baseband processor 1024 / application processor 1006 may be a component of the user equipment UE 102. The apparatus 1002 may be a processor chip (modem and / or application) and include only the wireless baseband processor 1024 and / or the application processor 1006, or in another configuration, the apparatus 1002 may be the entire user equipment UE 102 and include additional modules of the apparatus 1002.

[0105] As described above, the simultaneous multiple-panel STxMP component 140 is configured to: receive control signaling for transmission of a report associated with the simultaneous multiple-panel STxMP from a network entity, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for transmitting the report, or uplink resources for transmitting the report; and transmit a report conforming to the control signaling to the network entity based on a trigger condition, the report corresponding to at least one of a beam report of the simultaneous multiple-panel STxMP or a panel status update report of the simultaneous multiple-panel STxMP. The simultaneous multiple-panel STxMP component 140 may be internal to the wireless baseband processor 1024, the application processor 1006, or both the wireless baseband processor 1024 and the application processor 1006. The simultaneous multi-panel transmission STxMP component 140 may be one or more hardware components specially configured to perform the specified processes / algorithms, implemented by one or more processors configured to perform the specified processes / algorithms, stored on a computer-readable medium for implementation by one or more processors, or a combination thereof.

[0106] As shown, the apparatus 1002 may include various components configured for various functions. In one configuration, the apparatus 1002, particularly the wireless baseband processor 1024 and / or the application processor 1006, comprises: means for receiving, from a network entity, control signaling for transmission of a report associated with a multiple-panel simultaneous transmission STxMP, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more downlink reference signals to be measured for the report, inhibit timer information for transmission of the report, or uplink resources for transmission of the report; and means for transmitting, based on a trigger condition, a report conforming to the control signaling to the network entity, the report corresponding to at least one of a beam report of a multiple-panel simultaneous transmission STxMP or a panel status update report of a multiple-panel simultaneous transmission STxMP. The apparatus 1002 further comprises means for receiving one or more downlink reference signals on one or more activated panels from a network entity, where measurements of the one or more downlink reference signals activate a trigger condition. The apparatus 1002 further comprises means for transmitting a user equipment UE capability report indicating one or more user equipment UE capabilities for reporting, where the one or more user equipment UE capabilities comprise at least one of: a first maximum number of synchronization signal block (SSB) or channel state information reference signal (CSI-RS) resources for reporting, a second maximum number of synchronization signal block (SSB) or channel state information reference signal (CSI-RS) resources in a slot for reporting, a third maximum number of one or more activated panels at the user equipment UE, or a number of antenna ports for each panel at the user equipment UE. The apparatus 1002 further comprises means for transmitting a scheduling request for the report based on activation of the trigger condition for the report, and means for receiving an uplink grant to transmit the report from the network entity in response to transmitting the scheduling request.The apparatus 1002 further comprises means for receiving a first acknowledgement / negative acknowledgement (ACK / NACK) feedback in response to sending the report.

[0107] The apparatus 1002 further comprises means for receiving at least one of downlink control information DCI or MAC-CE, where the downlink control information DCI triggers aperiodic beam reporting for a multi-panel simultaneous transmission STxMP, and the MAC-CE triggers at least one of semi-persistent beam reporting for a multi-panel simultaneous transmission STxMP or an update to one or more uplink MIMO parameter sets. The apparatus 1002 further comprises means for transmitting second acknowledgment / negative acknowledgment (ACK / NACK) feedback in response to at least one of control signaling indicating one or more uplink MIMO parameter sets or the MAC-CE updating the one or more uplink MIMO parameter sets. The apparatus 1002 further comprises means for receiving an uplink beam direction transmission configuration indicator (TCI) update and means for transmitting third acknowledgment / negative acknowledgment (ACK / NACK) feedback for the uplink beam direction transmission configuration indicator (TCI) update in response to a decoding operation associated with receiving the transmission configuration indicator (TCI) update. The apparatus 1002 further comprises means for communicating to a 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. These means may be a multiple panel simultaneous transmission STxMP component 140 of the apparatus 1002 configured to perform the functions described by the means.

[0108] 11 is a diagram 1100 illustrating an example of a hardware implementation of one or more exemplary network entities 104. The one or more network entities 104 may be a BS, a component of a BS, or may implement BS functionality. The one or more network entities 104 may include at least one of a central unit CU 1110, a distributed unit DU 1130, or a radio unit RU 1140. For example, the component 199 may be located in one or more network entities 104, such as the central unit CU 1110, both the central unit CU 1110 and the distributed unit DU 1130, each of the central unit CU 1110, the distributed unit DU 1130, and the radio unit RU 1140, the distributed unit DU 1130, both the distributed unit DU 1130 and the radio unit RU 1140, or the radio unit RU 1140.

[0109] The central unit CU 1110 may include a central unit CU processor 1112. The central unit CU processor 1112 may include on-chip memory 1112′. In some aspects, the central unit CU 1110 may further include an additional memory module 1114 and a communication interface 1118. The central unit CU 1110 communicates with the distributed unit DU 1130 via a midhaul link 162, such as an F1 interface. The distributed unit DU 1130 may include a distributed unit DU processor 1132. The distributed unit DU processor 1132 may include on-chip memory 1132′. In some aspects, the central unit CU 1130 may further include an additional memory module 1134 and a communication interface 1138. The distributed unit DU 1130 communicates with the radio unit RU 1140 through the fronthaul link 160. The radio unit RU 1140 may include a radio unit RU processor 1142. The radio unit RU processor 1142 may include an on-chip memory 1142′. In some aspects, the radio unit RU 1140 may further include an additional memory module 1144, one or more transceivers 1146, an antenna 1180, and a communication interface 1148. The radio unit RU 1140 communicates wirelessly with the user equipment UE 102.

[0110] The on-chip memories 1112′, 1132′, 1142′ and the additional memory modules 1114, 1134, 1144 may each be considered computer-readable media / memories. Each computer-readable medium / memory may be non-transitory. Each of the processors 1112, 1132, 1142 is responsible for general processing, which comprises executing software stored in the computer-readable medium / memory. This software, when executed by the corresponding processor(s), causes the processor(s) to perform the various functions described above. The computer-readable medium / memory may also be used to store data that is manipulated by the processor(s) when executing the software.

[0111] As described above, the report configuration component 150 is configured to: send control signaling to the user equipment UE for receiving a report related to the simultaneous multiple-panel transmission STxMP of the user equipment UE, the control signaling indicating at least one of a reporting quantity 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 receive a report conforming to the control signaling from the user equipment UE based on a trigger condition, the report corresponding to at least one of a beam report of the simultaneous multiple-panel transmission STxMP or a panel status update report of the simultaneous multiple-panel transmission STxMP. The report configuration component 150 may be located in one or more processors of one or more of the central unit CU1110, the distributed unit DU1130, and the radio unit RU1140. The reporting configuration component 150 may be one or more hardware components specially configured to perform the specified processes / algorithms, implemented by one or more processors configured to perform the specified processes / algorithms, stored in a computer-readable medium for implementation by one or more processors, or a combination thereof.

[0112] The one or more network entities 104 may include various components configured for various functions. As described above, the one or more network entities 104 include: means for transmitting control signaling to a user equipment UE for receiving a report related to the user equipment UE's simultaneous multi-panel transmission STxMP, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more downlink reference signals to be measured for the report, inhibit timer information for receiving the report, or uplink resources for receiving the report; and means for receiving a report from the user equipment UE based on a trigger condition, the report conforming to the control signaling, the report corresponding to at least one of a beam report of the simultaneous multi-panel transmission STxMP or a panel status update report of the simultaneous multi-panel transmission STxMP. The one or more network entities 104 further include means for transmitting one or more downlink reference signals to the user equipment UE of one or more activated panels. The one or more network entities 104 further comprise means for receiving a user equipment UE capability report indicating one or more user equipment UE capabilities for reporting, the one or more user equipment UE capabilities comprising at least one of: a first maximum number of synchronization signal blocks SSBs or channel state information reference signal CSI-RS resources for reporting; a second maximum number of synchronization signal blocks SSBs or channel state information reference signal CSI-RS resources in a slot for reporting; a third maximum number of one or more activated panels in the user equipment UE; or a number of antenna ports for each panel in the user equipment UE.

[0113] The one or more network entities 104 further comprise means for receiving a scheduling request for the report and means for transmitting an uplink grant for receiving the report from the user equipment UE in response to receiving the scheduling request. The one or more network entities 104 further comprise means for transmitting at least one of downlink control information DCI or MAC-CE, where the downlink control information DCI triggers aperiodic beam reporting for the simultaneous multi-panel transmission STxMP and the MAC-CE triggers at least one of semi-persistent beam reporting for the simultaneous multi-panel transmission STxMP or an update to one or more uplink MIMO parameter sets. The one or more network entities 104 further comprise means for receiving a second acknowledgment / negative acknowledgment (ACK / NACK) feedback 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. The one or more network entities 104 further comprise means for transmitting an uplink beam direction transmission configuration indicator TCI update and means for receiving a third acknowledgment / negative acknowledgment (ACK / NACK) feedback for the uplink beam direction transmission configuration indicator (TCI) update in response to a decoding operation associated with transmitting the transmission configuration indicator (TCI) update. The one or more network entities 104 further comprise means for communicating to the user equipment (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. These means may be a reporting configuration component 150 of the one or more network entities 104 configured to perform the functions described by the means.

[0114] The particular order or hierarchy of blocks in the processes and flowcharts disclosed herein is an illustration of an example approach. Thus, the particular order or hierarchy of blocks in the processes and flowcharts may be rearranged. Some blocks may also be combined or removed. Dashed lines may indicate optional elements in the figures. The accompanying method claims present elements of the various blocks in an example order and are not limited to the particular order or hierarchy presented in the claims, processes, and flowcharts.

[0115] The detailed description set forth herein illustrates various configurations in conjunction with the drawings and does not represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough explanation of the various concepts. However, these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring the concepts.

[0116] Aspects of wireless communication systems, such as telecommunications systems, are presented with reference to various apparatus and methods. These apparatus and methods are described in the following detailed description and 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, and combinations thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0117] An element, or any portion of an element, or any combination of elements, may be implemented as a “processing system” comprising one or more processors. Examples of processors include, but are not limited to, a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system-on-chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, 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 may be referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, and may execute software. Software is intended to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, or combinations thereof.

[0118] If the functions described herein are implemented in software, the functions may be stored or encoded as one or more instructions or code on a computer-readable medium, such as a non-transitory computer-readable storage medium. Computer-readable media comprises 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, and 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 instructions or data structures that can be accessed by a computer. Storage media may be any available medium that can be accessed by a computer.

[0119] 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 realized via integrated chip implementations and other non-modular component-based devices, such as end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchase devices, medical devices, artificial intelligence (AI)-enabled devices, machine learning (ML)-enabled devices, etc. The aspects, implementations, and / or use cases may range from chip-level or modular components to non-modular components or non-chip-level implementations, and even to converged, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more technologies described herein.

[0120] Devices incorporating aspects and features described herein may also include additional components and functionality for implementing and practicing the claimed aspects and features. For example, transmitting and receiving wireless signals necessarily comprises several components for analog and digital purposes, such as hardware components, antennas, RF chains, power amplifiers, modulators, buffers, processor(s), interleavers, adders / summers, etc. The techniques described herein may be implemented in a wide variety of devices, chip-level components, systems, distributed deployments, centralized or distributed components, end-user devices, etc. in various configurations.

[0121] The description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Accordingly, the claims should not be limited to the aspects described herein, but should be construed in light of the full scope of the present disclosure consistent with the language of the claims.

[0122] References to elements in the singular do not mean "one and only one" unless otherwise specified, but rather "one or more." Terms such as "if," "when," and "while" do not imply an immediate temporal relationship or reaction. That is, these phrases, such as "when," do not suggest an immediate action upon or during the occurrence of the action, but merely an immediate temporal constraint for a specific or action to occur if a condition is met. The term "some" refers to one or more, unless otherwise specified. Combinations such as "at least one of A, B, or C" or "one or more of A, B, or C" comprise any combination of A, B, and / or C, such as A and B, A and C, B and C, or A, B, and C, and may include multiples of A, multiples of B, and / or multiples of C, or may include only A, only B, or only C. A set should be interpreted as a set of elements where the element is numbered one or more.

[0123] Unless otherwise specified, ordinal terms such as "first" and "second" do not necessarily imply any order in time, sequence, numerical value, or the like, but are used to distinguish between different instances of the term or phrase that follows each ordinal number.

[0124] All structural and functional equivalents of the elements of various embodiments described throughout this disclosure that are known or that will later become known by those skilled in the art are expressly incorporated herein by reference and are encompassed by the claims. Words such as "module," "mechanism," "element," "device," and the like may not be substitutes for the word "means." Accordingly, claim elements should not be construed as means-plus-function unless the elements are expressly recited with the phrase "means for." As used herein, the phrase "based on" should not be construed as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" should be interpreted as "based on at least A," where "A" can be information, a condition, a factor, etc., unless specifically stated otherwise.

[0125] The following examples are illustrative only and may be combined with other examples or teachings described herein without limitation. Example 1 is a method of wireless communication in a user equipment (UE), comprising: receiving control signaling from a network entity for transmission of a report associated with a simultaneous multiple panel transmission STxMP, the control signaling indicating at least one of a reporting quantity of an uplink beam for the report, one or more downlink reference signals to be measured for the report, prohibition timer information for transmitting the report, or uplink resources for transmitting the report; and transmitting a report conforming to the control signaling to the network entity based on a trigger condition, the report corresponding to at least one of a beam report of the simultaneous multiple panel transmission STxMP or a panel status update report of the simultaneous multiple panel transmission STxMP.

[0126] Example 2 may be combined with Example 1, and further includes receiving one or more downlink reference signals from the network entity at the one or more activated panels, wherein measurements of the one or more downlink reference signals activate a trigger condition.

[0127] Example 3 may be combined with any one of Examples 1 to 2, and further comprises a step of transmitting a user equipment UE capability report indicating one or more user equipment UE capabilities for beam / panel reporting, wherein the one or more user equipment UE capabilities comprise at least one of: a first maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources supported in the report; a second maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources supported in a slot of the report; a third maximum number of one or more activated panels in the user equipment UE; or the number of antenna ports of each activated panel in the user equipment UE.

[0128] Example 4 may be combined with any one of Examples 1 to 3, and further includes: sending a scheduling request for the report based on activation of a trigger condition for the report; and receiving an uplink permission for sending the report to the network entity in response to sending the scheduling request.

[0129] Example 5 may be combined with any one of Examples 1 to 4, and includes the step of reporting a beam for a multi-panel simultaneous transmission STxMP, wherein the beam report includes at least one of a group of beams indicated by one or more indices of one or more downlink reference signals associated with beam quality, panel information, or the multi-panel simultaneous transmission STxMP.

[0130] The sixth embodiment may be combined with any one of the first to fifth embodiments, and further includes receiving a first acknowledgment / negative acknowledgment (ACK / NACK) feedback in response to the sending of the report.

[0131] Example 7 may be combined with any one of Examples 1 to 6, and the control signaling further comprises indicating one or more of the uplink MIMO parameter sets, wherein at least one parameter set of the one or more uplink MIMO parameter sets corresponds to a predefined panel status, or each of the one or more uplink MIMO parameter sets corresponds to a respective panel status.

[0132] Example 8 may be combined with any one of Examples 1 to 7 and further comprises a step of receiving at least one of downlink control information DCI or MAC-CE, wherein the downlink control information DCI comprises triggering aperiodic beam reporting of the multi-panel simultaneous transmission STxMP, and the MAC-CE comprises triggering at least one of semi-persistent beam reporting of the multi-panel simultaneous transmission STxMP or updating one or more uplink MIMO parameter sets.

[0133] Example 9 may be combined with any one of Examples 1 to 8, and further includes a step of sending a second acknowledgment / negative acknowledgment (ACK / NACK) feedback in response to at least one of control signaling indicating one or more uplink MIMO parameter sets or MAC-CE updating one or more uplink MIMO parameter sets.

[0134] Example 10 may be combined with any one of Examples 1 to 9 and further includes a step of receiving a transmission configuration indicator TCI update for an uplink beam instruction, and a step of transmitting a third acknowledgement / negative acknowledgement ACK / NACK feedback for the transmission configuration indicator TCI update for the uplink beam instruction in response to a decoding operation associated with receiving the transmission configuration indicator TCI update.

[0135] Example 11 may be combined with any one of Examples 1 to 10, and further includes a step of communicating to a network entity based on a parameter set of one or more uplink MIMO parameter sets corresponding to the panel status indicated in the panel status update report.

[0136] Example 12 is a method of wireless communication in a network entity, the method comprising: transmitting, to a user equipment UE, control signaling for receiving a report related to a simultaneous multiple panel transmission STxMP of the user equipment UE, the control signaling indicating at least one of a reporting quantity 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 receiving, from the user equipment UE, a report conforming to the control signaling based on a trigger condition, the report corresponding to at least one of a beam report of the simultaneous multiple panel transmission STxMP or a panel status update report of the simultaneous multiple panel transmission STxMP.

[0137] Example 13 may be combined with Example 12, and further includes: sending one or more downlink reference signals to user equipments UE of one or more activated panels.

[0138] Example 14 may be combined with any one of Examples 12 to 13, and further comprises a step of receiving a user equipment UE capability report indicating one or more user equipment UE capabilities for beam / panel reporting, wherein the one or more user equipment UE capabilities comprise at least one of: a first maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources supported in the report; a second maximum number of synchronization signal blocks (SSBs) or channel state information reference signal (CSI-RS) resources supported in a slot of the report; a third maximum number of one or more activated panels in the user equipment UE; or the number of antenna ports of each activated panel in the user equipment UE.

[0139] Example 15 may be combined with any one of Examples 12 to 14, and further includes: receiving a scheduling request for a report; and, in response to receiving the scheduling request, sending an uplink grant for receiving the report from the user equipment UE.

[0140] Example 16 may be combined with any one of Examples 12 to 15, and includes the step of: the beam report of the multiple panel simultaneous transmission STxMP includes at least one of a group of beams indicated by one or more indices of one or more downlink reference signals associated with beam quality, panel information, or the multiple panel simultaneous transmission STxMP.

[0141] Example 17 may be combined with any one of Examples 12 to 16, and the control signaling further comprises indicating one or more of the uplink MIMO parameter sets, wherein at least one parameter set of the one or more uplink MIMO parameter sets corresponds to a predefined panel status, or each of the one or more uplink MIMO parameter sets corresponds to a respective panel status.

[0142] Example 18 may be combined with any one of Examples 12 to 17, and further comprises a step of transmitting at least one of downlink control information DCI or MAC-CE, wherein the downlink control information DCI comprises triggering aperiodic beam reporting of the multiple-panel simultaneous transmission STxMP, and the MAC-CE comprises triggering at least one of semi-persistent beam reporting of the multiple-panel simultaneous transmission STxMP or updating one or more uplink MIMO parameter sets.

[0143] Example 19 may be combined with any one of Examples 12 to 18, and further includes a step of receiving a second acknowledgment / negative acknowledgment (ACK / NACK) feedback in response to at least one of control signaling indicating one or more uplink MIMO parameter sets or MAC-CE updating one or more uplink MIMO parameter sets.

[0144] Example 20 may be combined with any one of Examples 12 to 19 and further comprises a step of sending a transmission configuration indicator TCI update for an uplink beam instruction, and a step of receiving a third acknowledgement / negative acknowledgement ACK / NACK feedback for the transmission configuration indicator TCI update for the uplink beam instruction in response to a decoding operation associated with sending the transmission configuration indicator TCI update.

[0145] Example 21 may be combined with any one of Examples 12 to 20, and further includes a step of communicating to a user equipment (UE) based on a parameter set of one or more uplink MIMO parameter sets corresponding to the panel status indicated in the panel status update report.

[0146] Example 22 is an apparatus for wireless communication for implementing the method according to any one of Examples 1 to 21. Example 23 is an apparatus for wireless communication, comprising means for implementing the method according to any one of Examples 1 to 21.

[0147] 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 a method according to any one of Examples 1 to 21.

Claims

1. 1. A method of wireless communication in a user equipment (UE), said method comprising: receiving control signaling from a network entity for transmission of a report associated with simultaneous multi-panel transmission STxMP, the control signaling indicating at least one of a reporting quantity 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 uplink resources for the transmission of the report; transmitting the report according to the control signaling to the network entity based on a trigger condition, the report corresponding to at least one of a beam report of a multi-panel simultaneous transmission STxMP or a panel status update report of a multi-panel simultaneous transmission STxMP; Equipped with method.

2. The method further comprises receiving one or more of the downlink reference signals in one or more activated panels from the network entity; a measurement of one or more of the downlink reference signals activates a trigger condition; The method of claim 1.

3. The method further comprises transmitting a user equipment UE capability report indicating one or more user equipment UE capabilities for the report; The one or more user equipment UE capabilities are: a first maximum number of synchronization signal blocks (SSB) or channel state information reference signal (CSI-RS) resources supported in the report; a second maximum number of synchronization signal blocks (SSB) or channel state information reference signal (CSI-RS) resources supported in the reporting slot; a third maximum number of one or more activated panels in the user equipment UE; or the number of antenna ports of each activated panel in the user equipment UE; At least one of The method according to any one of claims 1 to 2.

4. The method further comprises: sending a scheduling request for the report based on activation of the trigger condition for the report; receiving an uplink grant for transmitting the report to the network entity in response to the sending of the scheduling request; Equipped with The method according to any one of claims 1 to 3.

5. The beam report of the multi-panel simultaneous transmission STxMP comprises at least one of a group of beams indicated by one or more indices of the one or more downlink reference signals associated with beam quality, panel information, or the multi-panel simultaneous transmission STxMP. The method according to any one of claims 1 to 4.

6. The method further comprises receiving a first acknowledgement / negative acknowledgement (ACK / NACK) feedback in response to the sending of the report. The method according to any one of claims 1 to 5.

7. the control signaling further indicates one or more uplink multiple-input multiple-output (MIMO) parameter sets; At least one parameter set of the one or more uplink MIMO parameter sets corresponds to a predefined panel status, or Each of the one or more uplink MIMO parameter sets corresponds to a respective panel status; The method according to any one of claims 1 to 6.

8. The method further comprises receiving at least one of downlink control information DCI or medium access control - control element (MAC-CE); The downlink control information (DCI) triggers aperiodic beam reporting of a multi-panel simultaneous transmission STxMP; The MAC-CE triggers at least one of semi-persistent beam reporting for multi-panel simultaneous transmission STxMP and updating one or more uplink MIMO parameter sets; The method according to any one of claims 1 to 7.

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

10. The method further comprises: receiving a transmission configuration indicator (TCI) update for uplink beam direction; transmitting a third acknowledgment / negative acknowledgement (ACK / NACK) feedback to the transmission configuration indicator (TCI) update for the uplink beam indication in response to a decoding operation associated with receiving the transmission configuration indicator (TCI) update; Equipped with The method according to any one of claims 1 to 9.

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

12. 1. A method of wireless communication in a network entity, the method comprising: transmitting, to a user equipment (UE), control signaling for reception of a report associated with simultaneous multi-panel transmission STxMP of the user equipment (UE), the control signaling indicating at least one of a reporting quantity 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 uplink resources for the reception of the report; receiving the report according to the control signaling from the user equipment (UE) based on a trigger condition, the report corresponding to at least one of a beam report of a multi-panel simultaneous transmission STxMP or a panel status update report of a multi-panel simultaneous transmission STxMP; Equipped with method.

13. The method further comprises transmitting one or more of the downlink reference signals to the user equipments UE of one or more activated panels. The method of claim 12.

14. The method further comprises receiving a user equipment UE capability report indicating one or more user equipment UE capabilities for the report; The one or more user equipment UE capabilities are: a first maximum number of synchronization signal blocks (SSB) or channel state information reference signal (CSI-RS) resources supported in the report; a second maximum number of synchronization signal blocks (SSB) or channel state information reference signal (CSI-RS) resources supported in the reporting slot; a third maximum number of one or more activated panels in the user equipment UE; or the number of antenna ports of each activated panel in the user equipment UE; At least one of The method according to any one of claims 12 to 13.

15. The method further comprises: receiving a request to schedule the report; sending an uplink grant for receiving the report from the user equipment (UE) in response to receiving the scheduling request; Equipped with The method according to any one of claims 12 to 14.

16. The beam report of the multi-panel simultaneous transmission STxMP comprises at least one of beam quality, panel information, or a group of beams indicated by one or more indices of the one or more downlink reference signals associated with the multi-panel simultaneous transmission STxMP. The method according to any one of claims 12 to 15.

17. the control signaling further indicates one or more uplink multiple-input multiple-output (MIMO) parameter sets; At least one parameter set of the one or more uplink MIMO parameter sets corresponds to a predefined panel status, or Each of the one or more uplink MIMO parameter sets corresponds to a respective panel status; The method according to any one of claims 12 to 16.

18. The method further comprises transmitting at least one of downlink control information DCI or medium access control - control element (MAC-CE); The downlink control information (DCI) triggers aperiodic beam reporting of a multi-panel simultaneous transmission STxMP; The MAC-CE triggers at least one of semi-persistent beam reporting for multi-panel simultaneous transmission STxMP and / or updates to one or more uplink MIMO parameter sets; The method according to any one of claims 12 to 17.

19. Memory and at least one processor coupled to said memory and configured to perform the method of any one of claims 1 to 18; 1. An apparatus for wireless communication comprising:

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