Asymmetric downlink (DL) single transmission / reception point (s-TRP) / uplink multi‑TRP operation

Abstract

Disclosed are methods, processors, and apparatuses including: determining that a sounding reference signal (SRS) resource set is not configured to follow a unified Transmission Configuration Indication (TCI) state in a multi-transmission and reception point (TRP) deployment, where the SRS resource set comprises SRS resources for transmitting SRS to an uplink-only (UL-only) TRP, determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP, and transmitting the SRS based on the pathloss offset.

Description

Attorney Docket No. 56990-0084W01 / P70861WO1ASYMMETRIC DOWNLINK (DL) SINGLE TRANSMISSION / RECEPTION POINT (S-TRP)ZUPLINK MULTI-TRP OPERATIONCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 779,046, filed March 27, 2025, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] This description relates generally to wireless communications, and in particular to multiple transmi ssion / recepti on point (m-TRP) operation in wireless communication networks.BACKGROUND

[0003] Wireless communication networks provide integrated communication platforms and telecommunication services to wireless user devices. Example telecommunication services include telephony, data (e.g., voice, audio, and / or video data), messaging, and / or other services. The wireless communication networks have wireless access nodes that exchange wireless signals with the wireless user devices using one or more wireless network protocols, such as protocols described in various telecommunication standards promulgated by the ETSI Third Generation Partnership Project (3GPP). The wireless communication networks facilitate mobile broadband service using technologies such as orthogonal frequency-division multiple access (OFDMA), multiple input multiple output (MIMO), advanced channel coding, massive MIMO, beamforming, and / or other features.

[0004] Wireless networks can include transmission / reception points (TRPs). A TRP is a physical antenna location or site capable of independently transmitting and receiving signals within a network. Wireless networks were developed to support multi-TRP (m-TRP) operation in which multiple TRPs operate together, coordinating their beams and transmissions, to improve signal quality, extend coverage, increase reliability, and enhance data throughput. In 3 GPP Release 16 (Rel-16), wireless networks were configured to support both single-Downlink Control Information (s-DCI) m-TRP schemes and multi-DCI m-TRP schemes. S-DCI schemes include a spatial division multiplexing (SDM) scheme, two frequency division multiplexing (FDM) schemes, and two time division multiplexing (TDM) schemes. In 3GPP Rel-17, wireless networks were further configured to support inter-cell m-TRP and channel stateAttorney Docket No. 56990-0084W01 / P70861WO1information (CSI). 3GPP Rel-18 extended a unified Transmission Configuration Indication (TCI) framework to support m-TRP operation.

[0005] The unified TCI framework simplifies beam management by consolidating spatial configurations across different signals and channels into consistent, reusable states, known as TCI states. Each TCI state defines a particular spatial relationship (e.g., a specific beam direction or antenna configuration) between a user equipment (UE) and a base station. By referencing these unified TCI states, the network efficiently indicates to the UE how it should receive or transmit signals, including Sounding Reference Signals (SRS), across the multiple TRPs.Attorney Docket No. 56990-0084W01 / P70861WO1BRIEF DESCRIPTION OF THE FIGURES

[0006] FIG. 1 illustrates a symmetric multiple transmission / reception point (m-TRP) deployment and an asymmetric m-TRP deployment, according to some implementations.

[0007] FIG. 2 illustrates an example wireless network, according to some implementations.

[0008] FIGS. 3A-3D illustrate example diagrams of a configuration for supporting sounding reference signal (SRS) power control, according to some implementations.

[0009] FIG. 4A illustrates a first medium access control (MAC) control element (CE) for updating at least one of a pathloss offset or a closed loop power control (CLPC) index, according to some implementations.

[0010] FIG. 4B illustrates a first MAC CE for updating at least one of a pathloss offset or a CLPC index, according to some implementations.

[0011] FIG. 5 illustrates a flowchart of an example method, according to some implementations.

[0012] FIG. 6 illustrates an example UE, according to some implementations.

[0013] FIG. 7 illustrates an example access node, according to some implementations.Attorney Docket No. 56990-0084W01 / P70861WO1DETAILED DESCRIPTION

[0014] 3GPP Rel-19 introduced asymmetric DL s-TRP (s-TRP) / UL m-TRP deployment. In symmetric m-TRP, all TRPs support both DL and UL. In an asymmetric m-TRP, however, some TRPs support UL only and other TRPs support both DL and UL.

[0015] FIG. 1 illustrates a symmetric m-TRP deployment 100 and an asymmetric m-TRP deployment 110, according to some implementations. As shown in FIG. 1, the symmetric m-TRP deployment 100 includes multiple TRPs that each support UL / DL. As also shown in FIG.1, the asymmetric m-TRP deployment 110 includes multiple TRPs, but one TRP supports UL / DL and the other TRP supports UL only.

[0016] In both types of m-TRP deployments, the network can configure a UE with power control information, e.g., for transmitting SRS. The SRS power control information can include two parameters: pathloss and Closed Loop Power Control (CLPC). The SRS power control information is configured per SRS-Re source Set. The pathloss offset can be configured for each joint / UL TCI state (e.g., srs-TCI-State-rl7). That is, a unified TCI state that is used for both the UL and DL or only UL (joint / UL TCI state) indicates the pathloss to use for an SRS-ResourceSet. As for CLPC, it can be signaled as an index because two separate SRS CLPC adjustment states can be configured for SRS in a Bandwidth Part (BWP) / Component Carrier (CC). The CLPC adjustment state index is configured in the joint / UL TCI state (e.g., Uplink-powerControlId-rl7 is configured in the joint / UL TCI state). Note that a Radio Resource Control (RRC) parameter per BWP / CC can be used to configure whether the two separate SRS CLPC adjustment states are used. This is shown in example 300 of FIG. 3 A in the Uplink-PowerControl information element.

[0017] It is possible, however, for the SRS-ResourceSet to be configured to not follow an indicated joint / UL TCI state. In this scenario, UEs would not have the SRS power control information needed to transmit SRS on the UL only TRP.

[0018] This disclosure describes solutions that support asymmetric DL s-TRP / UL m-TRP operations. In particular, this disclosure describes solutions for supporting SRS power control and power control updates in asymmetric DL s-TRP / UL m-TRP deployments.

[0019] FIG. 2 illustrates an example wireless network 200, according to some implementations. The wireless network 200 includes a UE 202 and a base station 204 connected via one or more channels 206A, 206B across an air interface 208. The UE 202 andAttorney Docket No. 56990-0084W01 / P70861WO1base station 204 communicate using a system that supports controls for managing the access of the UE 202 to a network via the base station 204.

[0020] In some implementations, the wireless network 200 is a Standalone (SA) network, e.g., that incorporates Fifth Generation (5G) New Radio (NR). In some other implementations, the wireless network 200 is a Non-Standalone (NSA) network that incorporates Long Term Evolution (LTE) and 5GNR. In these implementations, the wireless network 200 may be a E-UTRA (Evolved Universal Terrestrial Radio Access)-NR Dual Connectivity (EN-DC) network, or an NR-EUTRA Dual Connectivity (NE-DC) network. Furthermore, wireless networks implementing one or more other types of communication standards are possible, including future 3GPP systems (e.g., Sixth Generation (6G)), Institute of Electrical and Electronics Engineers (IEEE) 802.11 technology, or the like. While aspects may be described herein using terminology commonly associated with 5GNR, aspects of the present disclosure can be applied to other systems, such as systems subsequent to 5G (e.g., 6G).

[0021] In the wireless network 200, the UE 202 and any other UE in the system may be, for example, any of a laptop computer, smartphone, tablet computer, machine-type device (such as smart meters or specialized devices for healthcare), intelligent transportation system, or any other wireless device. In network 200, the base station 204 provides the UE 202 network connectivity to a broader network (not shown). This UE 202 connectivity is provided via the air interface 208 in a base station service area provided by the base station 204. In some implementations, such a broader network may be a wide area network operated by a cellular network provider, or may be the Internet. Each base station service area associated with the base station 204 is supported by one or more antennas integrated with the base station 204. The service areas can be divided into a number of sectors associated with one or more particular antennas. Such sectors may be physically associated with one or more fixed antennas or may be assigned to a physical area with one or more tunable antennas or antenna settings adjustable in a beamforming process used to direct a signal to a particular sector.

[0022] The UE 202 includes control circuitry 210 coupled with transmit circuitry 212 and receive circuitry 214. The transmit circuitry 212 and receive circuitry 214 may each be coupled with one or more antennas. The control circuitry 210 may include application-specific circuitry, baseband circuitry, or any of various combinations thereof. The transmit circuitry 212 and receive circuitry 214 may be adapted to transmit and receive data, respectively, and may include radio frequency (RF) circuitry and / or front-end module (FEM) circuitry.Attorney Docket No. 56990-0084W01 / P70861WO1

[0023] In various implementations, aspects of the transmit circuitry 212, receive circuitry 214, and / or control circuitry 210 may be integrated in various ways to implement the operations described herein. The control circuitry 210 may be adapted or configured to perform various operations, such as those described elsewhere in this disclosure related to a UE. Additionally, the transmit circuitry 212 may transmit using a plurality of multiplexed uplink physical channels. The plurality of uplink physical channels may be multiplexed, e.g., according to time division multiplexing (TDM) or frequency division multiplexing (FDM), and in some implementations, along with carrier aggregation. The transmit circuitry 212 may be configured to receive block data from the control circuitry 210 for transmission on the air interface 208.

[0024] Additionally, the receive circuitry 214 may receive a plurality of multiplexed downlink physical channels from the air interface 208 and relay the physical channels to the control circuitry 210. The plurality of downlink physical channels may be multiplexed, e.g., according to TDM or FDM, e.g., along with carrier aggregation. The transmit circuitry 212 and the receive circuitry 214 may transmit and receive, respectively, both control data and content data (e.g., messages, images, video, etc.) structured within data blocks that are carried by the physical channels.

[0025] FIG. 2 also illustrates the base station 204. In some implementations, the base station 204 may be a 5G radio access network (RAN), a next generation RAN, a E-UTRAN, a nonterrestrial cell, or a legacy RAN, such as a UTRAN. As used herein, the term “5G RAN” or the like may refer to the base station 204 that operates in an NR wireless network 200, and the term “E-UTRAN” or the like may refer to a base station 204 that operates in an LTE wireless network 200. The UE 202 utilizes connections (or channels) 206A, 206B, each of which includes a physical communications interface or layer.

[0026] The base station 204 circuitry may include control circuitry 216 coupled (directly or indirectly) with transmit circuitry 218 and / or receive circuitry 220. The transmit circuitry 218 and receive circuitry 220 may each be coupled (directly or indirectly) with one or more antennas that may be used to enable communications via the air interface 208. The transmit circuitry 218 and receive circuitry 220 may be adapted to transmit and receive data, respectively, addressed to any UE connected to the base station 204. The receive circuitry 220 may receive a plurality of uplink physical channels from one or more UEs, including the UE 202.Attorney Docket No. 56990-0084W01 / P70861WO1

[0027] In FIG. 2, the one or more channels 206 A, 206B are illustrated as an air interface to enable communicative coupling, and can be consistent with cellular communications protocols, such as an LTE protocol, Advanced LTE (LTE-A) protocol, LTE-based access to unlicensed spectrum (LTE-U), NR protocol, NR-based access to unlicensed spectrum (NR-U) protocol, and / or any other communications protocol(s). In some implementations, the UE 202 may directly exchange communication data via a ProSe interface. The ProSe interface may alternatively be referred to as a sidelink (SL) interface and may include one or more logical channels, including but not limited to a Physical Sidelink Control Channel (PSCCH), a Physical Sidelink Discovery Channel (PSDCH), and a Physical Sidelink Broadcast Channel (PSBCH).

[0028] FIGS. 3A-3D illustrate example diagrams of a configuration for supporting SRS power control, according to some implementations. For clarity, example diagrams 300, 310, 320, and 330 are described in the context of at least one of the preceding figures. A UE described herein can be similar to UE 202.

[0029] In line with the discussion above, in some scenarios, an SRS resource set is configured not to follow an indicated unified TCI state. For Q^va^Q^followUnifiedTCI-StateSRS, shown in example 310 of FIG. 3B, in SRS-Re source Set is not configured. This disclosure describes solutions for supporting SRS power control in such scenarios so that a UE can transmit SRS on an UL-only TRP in an asymmetric m-TRP deployment. Specifically, this disclosure describes solutions for determining SRS power control information that includes a pathloss offset and / or CLPC index. As explained previously, two separate SRS CLPC adjustment states can be configured for SRS in a BWP / CC.

[0030] In some implementations, a UE is configured to determine a pathloss offset configuration for the SRS resource set that is configured not to follow an indicated unified TCI state. In some examples, the UE is configured to use a pathloss offset configured in a joint / UL TCI state (e.g., srs-TCI-State-rl7 shown in example 320 of FIG. 3C) associated with a selected SRS resource in the SRS resource set. In a first option, the selected SRS resource is the resource with the lowest SRS-Resourceld (shown in example 330 of FIG. 3D) of all of the SRS resources in the same SRS resource set. In a second option, the selected SRS resource is the first resource configured in the list of SRS resources (shown in example 330 of FIG. 3D) in the same SRS resource set. Note that, in these examples, when the SRS resource set is configured not to follow the indicated unified TCI State, and the pathloss offset is configured in the unifiedAttorney Docket No. 56990-0084W01 / P70861WO1TCI State, the UE expects the selected SRS resource (under either option described above) to be configured with the unified TCI State (e.g., srs-TCI-State-rl7).

[0031] In some examples, the network configures the pathloss offset separately. In a first option, the network explicitly configures the pathloss offset value. In a second option, the network configures whether a first indicated unified TCI State (e.g., associated with a first TRP) or a second indicated unified TCI State (e.g., associated with a second TRP) is used to derive the pathloss offset value. Here, the pathloss offset configured in the corresponding first or second indicated unified TCI State is used for the corresponding SRS resource set. In terms of where the pathloss offset is configured, in a first option, the pathloss offset is configured independently for each SRS resource set in which follow UnifiedTCI-StateSRS is not configured. In a second option, the pathloss offset is configured commonly for all the SRS resource sets in which follow UnifiedTCI-StateSRS is not configured. That is, the same pathloss offset is used for all the SRS resource sets in which followUnifiedTCI-StateSRS is not configured.

[0032] In some implementations, the network configures the UE to use two separate SRS CLPC adjustment states in a BWP / CC. Further, the srs-PowerControlAdjustmentStates in the corresponding SRS resource set is set to ‘separateClosedLoop.’ In these implementations, to determine the CLPC index, in some examples, the UE uses the CLPC index (e.g., closedLoopIndex-rl7) configured in the joint / UL TCI State (e.g., srs-TCI-State-rl ), associated / configured with one selected SRS resource in the SRS resource set. In a first option, the selected SRS resource is the one with the lowest SRS-Resourceld among all the SRS resources in the same SRS resource set. In a second option, the selected SRS resource is the first one configured in the list of SRS resources in the same SRS resource set. Note when: (1) the SRS resource set is configured not to follow the indicated unified TCI State, (2) the network configures the UE to use two separate SRS CLPC adjustment states in a BWP / CC, and (3) the srs-PowerControlAdjustmentStates in the corresponding SRS resource set is set to ‘separateClosedLoop,’ the UE expects the selected SRS resource (which is determined using either option above) to be configured with the unified TCI State (e.g., srs-TCI-State-r!7).

[0033] In some examples, the network configures the CLPC index separately. In a first option, the network explicitly configures the CLPC index, e.g., ‘i0’ or ‘il.’ In a second option, the network configures whether the first indicated unified TCI State or the second indicated unified TCI State is used to derive the CLPC index. The CLPC index, e.g., closedLoop!ndex-rl7,Attorney Docket No. 56990-0084W01 / P70861WO1configured in the corresponding first or second indicated unified TCI State is used for the corresponding SRS resource set. In terms of where the CLPC index is configured, in a first option, the CLPC index is configured independently for each SRS resource set in which followUnifiedTCI-StateSRS is not configured. In a second option, the CLPC index is configured commonly for all the SRS resource sets in which followUnifiedTCI-StateSRS is not configured. That is, the same CLPC index is used for all the SRS resource sets in which followUnifiedTCI-StateSRS is not configured.

[0034] In some implementations, the network is configured to use a MAC CE to update the pathloss offset and / or the CLPC index in scenarios where the SRS resource set is configured not to follow the indicated unified TCI state. In a first example, the MAC CE includes a “Serving Cell ID” field, an “UL BWP ID” field, an “SRS Resource Set ID” field, a “CLPC Index” field, and a “Pathloss Offset” field. The Serving Cell ID includes a 5 bit serving cell index, the UL BWP ID includes a 2 bit UL BWP ID, and SRS Resource Set ID includes a 4 bit SRS Resource Set ID identified by SRS-ResourceSetld. Within examples, the Pathloss Offset field is 7 bits and defines a Pathloss offset range, e.g., [-12...60], so the actual pathloss is Pathloss offset i -12.

[0035] In a second example, the MAC CE includes the “Serving Cell ID” field, the “UL BWP ID” field, the “SRS Resource Set ID” field, and a “TCI State Index” field. The TCI State index is 1 bit field that indicates either “first indicated TCI State” or “second indicated TCI State.” The UE uses the bit to determine whether the pathloss offset and CLPC index configured in the corresponding first or second indicated TCI State are used for the corresponding SRS resource set.

[0036] In some implementations, the same MAC CE can be used to update the pathloss offset and / or CLPC index for more than one SRS resource sets simultaneously. In other implementations, the network can configure one or multiple lists of SRS resource sets. When a MAC CE is used to update the pathloss offset and / or CLPC index for one SRS resource set, all the other SRS resource sets in the same list are updated with the same pathloss offset and / or CLPC index.

[0037] FIG. 4A illustrates a first MAC CE 400 for updating at least one of a pathloss offset or a CLPC index, according to some implementations. As shown in FIG. 4A, the MAC CE 400 includes a “Serving Cell ID” field, an “UL BWP ID” field, an “SRS Resource Set ID” field, a “CLPC Index” field, and a “Pathloss Offset” field.Attorney Docket No. 56990-0084W01 / P70861WO1

[0038] FIG. 4B illustrates a first MAC CE 410 for updating at least one of a pathloss offset or a CLPC index, according to some implementations. As shown in FIG. 4A, the MAC CE 410 includes the “Serving Cell ID” field, the “UL BWP ID” field, the “SRS Resource Set ID” field, and a “TCI State Index” field. The TCI State index is 1 bit field that indicates either “first indicated TCI State” or “second indicated TCI State.” The UE uses the bit to determine whether the pathloss offset and CLPC index configured in the corresponding first or second indicated TCI State are used for the corresponding SRS resource set.

[0039] In line with the discussion above, this disclosure also describes power control update solutions. By way of background, and as explained, in an asymmetric DL sTRP / UL mTRP operation a Joint TCI State can be configured as a TCLState and an UL TCI State can be configured as TCI-UL-State. In terms of the pathloss offset configuration for UL only TRP operation, the pathloss offset is configured per Joint / UL TCI State. And in terms of the CLPC index configuration, in a Joint / UL TCI State, ul-powerControl-rl7 is configured. In ul-powerControl-rl7, P0AlphaSet-rl7 is configured. And in P0AlphaSet-rl7, closedLoopIndex-rl7 (e.g., the CLPC index) is configured.

[0040] In some implementations, certain restrictions can be set on the power control update to simply implementation. In some examples, for PUSCH / PUCCH / SRS, the UE is configured to not expect that the same CLPC index is associated with different pathloss offsets. That is, the UE is configured to assume that the same CLPC index is associated with the same pathloss offset. Thus, for each unified TCI State (Joint / UL TCI State) that includes a particular CLPC index, the UE is configured to assume that each unified TCI State is also associated with the same pathloss offset.

[0041] In some examples, For PUSCH / PUCCH / SRS, the UE is configured to not expect that different CLPC indexes are associated with the same pathloss offset. Furthermore, if the UL TRP is limited to just one in an asymmetric DL sTRP / UL mTRP deployment, then if one CLPC index is associated with a non-zero pathloss offset (e.g., associated with the UL-only TRP), then the other CLPC index has to be associated with a zero pathloss offset (e.g., associated with the UL / DL TRP(s)).

[0042] In some examples, when RRC or MAC CE is used to update the pathloss offset associated with a unified TCI state, the UE can be configured with one of one or more options for resetting the close loop power control. In a first option, the UE only resets the corresponding the CLPC index that is configured in the corresponding unified TCI state. In aAttorney Docket No. 56990-0084W01 / P70861WO1second option, the UE resets both CLPC indexes. And in the third option, the UE does not reset either CLPC index.

[0043] FIG. 5 illustrates a flowchart of an example method 500, according to some implementations. For clarity of presentation, the description that follows generally describes method 500 in the context of the other figures in this description. For example, method 500 can be performed by UE 202 of FIG. 2. It will be understood that method 500 can be performed, for example, by any suitable system, environment, software, hardware, or a combination of systems, environments, software, and hardware, as appropriate. In some implementations, various steps of method 500 can be run in parallel, in combination, in loops, or in any order.

[0044] At step 502, method 500 involves receiving an indication that a sounding reference signal (SRS) resource set does not follow a unified Transmission Configuration Indication (TCI) state in a multi -transmission and reception point (TRP) deployment, where the SRS resource set includes SRS resources for transmitting SRS to an uplink-only (UL-only) TRP.

[0045] At step 504, method 500 involves determining, in response to receiving the indication, at least one of a pathloss offset or a closed loop power control (CLPC) index for a first SRS for transmission to the UL-only TRP.

[0046] In some implementations, the unified TCI state represents an indicated TCI state for an UL / DL TRP.

[0047] In some implementations, determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes determining a pathloss offset configured in the unified TCI state, wherein the pathloss offset is associated with a selected SRS resource in the SRS resource set.

[0048] In some implementations, the selected SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0049] In some implementations, selected SRS resource is a first listed SRS resource in the SRS resource set.

[0050] In some implementations, determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes receiving a configuration indicative of the pathloss offset.Attorney Docket No. 56990-0084W01 / P70861WO1

[0051] In some implementations, the configuration includes an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset value.

[0052] In some implementations, the pathloss offset is configured independently for the SRS resource set.

[0053] In some implementations, the pathloss offset is configured commonly for the SRS resource set with other SRS resource sets.

[0054] In some implementations, the CLPC index is selected from two CLPC adjustment states configured for SRS in a bandwidth part or component carrier (BWP / CC).

[0055] In some implementations, determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes determining the CLPC index configured in the unified TCI state, where the CLPC index is associated with a selected SRS resource in the SRS resource set.

[0056] In some implementations, the selected SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0057] In some implementations, selected SRS resource is a first listed SRS resource in the SRS resource set.

[0058] In some implementations, determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes receiving a configuration indicative of the CLPC index.

[0059] In some implementations, the configuration includes an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the CLPC index.

[0060] In some implementations, the CLPC index is configured independently for the SRS resource set.

[0061] In some implementations, the CLPC index is configured commonly for the SRS resource set with other SRS resource sets.

[0062] In some implementations, determining, in response to receiving the indication, at least one of a pathloss offset or a closed loop power control (CLPC) index for a first SRS forAttorney Docket No. 56990-0084W01 / P70861WO1transmission to the UL-only TRP includes receiving a MAC CE indicative of at least one of the pathloss offset or the CLPC index.

[0063] In some implementations, the MAC CE includes an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive at least one of the pathloss offset or the CLPC index.

[0064] In some implementations, the MAC CE includes updates at least one of the pathloss offset or the CLPC index for more than one SRS resource set simultaneously.

[0065] In some implementations, the method further including: updating other SRS resource sets in a same SRS list with the at least one of the pathloss offset or the CLPC index.

[0066] FIG. 6 illustrates an example UE 600, according to some implementations. The UE 600 may be similar to and substantially interchangeable with UE 202 of FIG. 2.

[0067] The UE 600 may be any mobile or non-mobile computing device, such as, for example, a mobile phone, computer, tablet, industrial wireless sensors, video device (for example, cameras, video cameras, etc.), wearable devices (for example, a smart watch), relaxed-IoT devices, etc.

[0068] The UE 600 may include any / all of processor 602, RF interface circuitry 604, memory / storage 606, user interface 608, sensors 610, driver circuitry 612, power management integrated circuit (PMIC) 614, one or more antenna(s) 616, and battery 618. The components of the UE 600 may be implemented as integrated circuits (ICs), portions thereof, discrete electronic devices, or other modules, logic, hardware, software, firmware, or a combination thereof. The block diagram of FIG. 6 is intended to show a high-level view of some of the components of the UE 600. However, some of the components shown may be omitted, additional components may be present, and a different arrangement of the components shown may occur in other implementations.

[0069] The components of the UE 600 may be coupled with various other components over one or more interconnects 620, which may represent any type of interface, input / output, bus (local, system, or expansion), transmission line, trace, optical connection, etc., that allows various circuit components (on common or different chips or chipsets) to interact with one another.Attorney Docket No. 56990-0084W01 / P70861WO1

[0070] The processor 602 may include one or more processors. For example, the processor 602 may include processor circuitry such as, for example, baseband processor circuitry (BB) 622A, central processor unit circuitry (CPU) 622B, and graphics processor unit circuitry (GPU) 622C. The processor 602 may include any type of circuitry or processor circuitry that executes or otherwise operates computer-executable instructions, such as program code, software modules, or functional processes from memory / storage 606 to cause the UE 600 to perform operations as described herein.

[0071] In some implementations, the baseband processor circuitry 622A may access a communication protocol stack 624 in the memory / storage 606 to communicate over a 3 GPP compatible network. In general, the baseband processor circuitry 622A may access the communication protocol stack to: perform user plane functions at a physical (PHY) layer, medium access control (MAC) layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) layer, service data adaptation protocol (SDAP) layer, and PDU layer; and perform control plane functions at a PHY layer, MAC layer, RLC layer, PDCP layer, RRC layer, and a non-access stratum layer. In some implementations, the PHY layer operations may additionally / altematively be performed by the components of the RF interface circuitry 604. The baseband processor circuitry 622A may generate or process baseband signals or waveforms that carry information in 3 GPP-compatible networks. In some implementations, the waveforms for NR may be based cyclic prefix orthogonal frequency division multiplexing (OFDM) “CP-OFDM” in the uplink or downlink, and discrete Fourier transform spread OFDM “DFT-S-OFDM” in the uplink.

[0072] The memory / storage 606 may include one or more non -transitory, computer-readable media that includes instructions (for example, communication protocol stack 624) that may be executed by the processor 602 to cause the UE 600 to perform various operations described herein. The memory / storage 606 include any type of volatile or non-volatile memory that may be distributed throughout the UE 600. In some implementations, some of the memory / storage 606 may be located on the processor 602 itself (for example, LI and L2 cache), while other memory / storage 606 is external to the processor 602 but accessible thereto via a memory interface. The memory / storage 606 may include any suitable volatile or non-volatile memory such as, but not limited to, dynamic random access memory (DRAM), static random access memory (SRAM), erasable programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), Flash memory, solid-state memory, or any other type of memory device technology.Attorney Docket No. 56990-0084W01 / P70861WO1

[0073] The RF interface circuitry 604 may include transceiver circuitry and radio frequency front module (RFEM) that allows the UE 600 to communicate with other devices over a radio access network. The RF interface circuitry 604 may include various elements arranged in transmit or receive paths. These elements may include, for example, switches, mixers, amplifiers, filters, synthesizer circuitry, control circuitry, etc.

[0074] In the receive path, the RFEM may receive a radiated signal from an air interface via antenna(s) 616 and proceed to filter and amplify (with a low-noise amplifier) the signal. The signal may be provided to a receiver of the transceiver that downconverts the RF signal into a baseband signal that is provided to the baseband processor.

[0075] In the transmit path, the transmitter of the transceiver up-converts the baseband signal received from the baseband processor and provides the RF signal to the RFEM. The RFEM may amplify the RF signal through a power amplifier prior to the signal being radiated across the air interface via the antenna(s) 616. In various implementations, the RF interface circuitry 604 may be configured to transmit / receive signals in a manner compatible with NR access technologies.

[0076] The antenna(s) 616 may include one or more antenna elements to convert electrical signals into radio waves to travel through the air and to convert received radio waves over the air into electrical signals. In some implementations, the antenna elements may be arranged into one or more antenna panels. The antenna(s) 616 may have antenna panels that are omnidirectional, directional, or a combination thereof, to enable beamforming and multiple input, multiple output communications. The antenna(s) 616 may include any / all of microstrip antennas, printed antennas fabricated on the surface of one or more printed circuit boards, patch antennas, phased array antennas, etc. The antenna(s) 616 may have one or more panels designed for one or more specific frequency bands, such as bands in FR1 or FR2.

[0077] The user interface 608 includes various input / output (VO) devices designed to enable user interaction with the UE 600. The user interface 608 includes input device circuitry and output device circuitry. Input device circuitry includes any physical or virtual means for accepting an input including, inter alia, one or more physical or virtual buttons (for example, a reset button), a physical keyboard, keypad, mouse, touchpad, touchscreen, microphones, scanner, headset, or the like. The output device circuitry includes any physical or virtual means for showing information or otherwise conveying information, such as sensor readings, actuator position(s), or other like information. Output device circuitry may include any number orAttorney Docket No. 56990-0084W01 / P70861WO1combinations of audio or visual display, including, inter alia, one or more simple visual outputs / indicators (for example, binary status indicators such as light emitting diodes “LEDs” and multi -character visual outputs), or more complex outputs such as display devices or touchscreens (for example, liquid crystal displays “LCDs,” LED displays, quantum dot displays, projectors, etc.), with the output of characters, graphics, multimedia objects, and the like being generated or produced from the operation of the UE 600.

[0078] The sensors 610 may include devices, modules, or subsystems whose purpose is to detect events or changes in its environment and send the information (sensor data) about the detected events to some other device, module, subsystem, etc. Examples of such sensors include, inter alia, inertia measurement units including accelerometers, gyroscopes, or magnetometers; microelectromechanical systems or nanoelectromechanical systems including 3-axis accelerometers, 3-axis gyroscopes, or magnetometers; level sensors; temperature sensors (for example, thermistors); pressure sensors; image capture devices (for example, cameras or lensless apertures); light detection and ranging sensors; proximity sensors (for example, infrared radiation detector and the like); depth sensors; ambient light sensors; ultrasonic transceivers; microphones or other like audio capture devices; etc.

[0079] The driver circuitry 612 may include software and hardware elements that operate to control particular devices that are embedded in the UE 600, attached to the UE 600, or otherwise communicatively coupled with the UE 600. The driver circuitry 612 may include individual drivers allowing other components to interact with or control various input / output (I / O) devices that may be present within, or connected to, the UE 600. For example, driver circuitry 612 may include a display driver to control and allow access to a display device, a touchscreen driver to control and allow access to a touchscreen interface, sensor drivers to obtain sensor readings of sensors 610 and control and allow access to sensors 610, drivers to obtain actuator positions of electro-mechanic components or control and allow access to the electro-mechanic components, a camera driver to control and allow access to an embedded image capture device, audio drivers to control and allow access to one or more audio devices.

[0080] The PMIC 614 may manage power provided to various components of the UE 600. In particular, with respect to the processor 602, the PMIC 614 may control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion.

[0081] In some implementations, the PMIC 614 may control, or otherwise be part of, various power saving mechanisms of the UE 600. A battery 618 may power the UE 600, although inAttorney Docket No. 56990-0084W01 / P70861WO1some examples the UE 600 may be mounted deployed in a fixed location and may have a power supply coupled to an electrical grid. The battery 618 may be a lithium ion battery, a metal-air battery, such as a zinc-air battery, an aluminum-air battery, a lithium-air battery, and the like. In some implementations, such as in vehicle-based applications, the battery 618 may be a typical lead-acid automotive battery.

[0082] FIG. 7 illustrates an example access node 700 (e.g., a base station or gNB), according to some implementations. The access node 700 may be similar to and substantially interchangeable with base station 204. The access node 700 may include one or more of processor 702, RF interface circuitry 704, core network (CN) interface circuitry 706, memory / storage circuitry 708, and one or more antenna(s) 710. The processor 702 may include any type of circuitry or processor circuitry that executes or otherwise operates computerexecutable instructions, such as program code, software modules, or functional processes from memory / storage circuitry 708 to cause the access node 700 to perform operations as described herein.

[0083] The components of the access node 700 may be coupled with various other components over one or more interconnects 712. The processor 702, RF interface circuitry 704, memory / storage circuitry 708 (including communication protocol stack 714), antenna(s) 710, and interconnects 712 may be similar to like-named elements shown and described with respect to FIG. 6. For example, the processor 702 may include processor circuitry such as, for example, baseband processor circuitry (BB) 716A, central processor unit circuitry (CPU) 716B, and graphics processor unit circuitry (GPU) 716C.

[0084] The CN interface circuitry 706 may provide connectivity to a core network, for example, a 5th Generation Core network (5GC) using a 5GC -compatible network interface protocol such as carrier Ethernet protocols, or some other suitable protocol. Network connectivity may be provided to / from the access node 700 via a fiber optic or wireless backhaul. The CN interface circuitry 706 may include one or more dedicated processors or FPGAs to communicate using one or more of the aforementioned protocols. In some implementations, the CN interface circuitry 706 may include multiple controllers to provide connectivity to other networks using the same or different protocols.

[0085] As used herein, the terms “access node,” “access point,” or the like may describe equipment that provides the radio baseband functions for data and / or voice connectivity between a network and one or more users. These access nodes can be referred to as BS, gNBs,Attorney Docket No. 56990-0084W01 / P70861WO1RAN nodes, eNBs, NodeBs, RSUs, TRxPs or TRPs, and so forth, and can include ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell). As used herein, the term “NG RAN node” or the like may refer to an access node 700 that operates in an NR or 5G system (for example, a gNB), and the term “E-UTRAN node” or the like may refer to an access node 700 that operates in an LTE or 4G system (e.g., an eNB). According to various implementations, the access node 700 may be implemented as one or more of a dedicated physical device such as a macrocell base station, and / or a low power (LP) base station for providing femtocells, picocells or other like cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells.

[0086] In some implementations, all or parts of the access node 700 may be implemented as one or more software entities running on server computers as part of a virtual network, which may be referred to as a CRAN and / or a virtual baseband unit pool (vBBUP). In V2X scenarios, the access node 700 may be or act as a “Road Side Unit.” The term “Road Side Unit” or “RSU” may refer to any transportation infrastructure entity used for V2X communications. An RSU may be implemented in or by a suitable RAN node or a stationary (or relatively stationary) UE, where an RSU implemented in or by a UE may be referred to as a “UE-type RSU,” an RSU implemented in or by an eNB may be referred to as an “eNB-type RSU,” an RSU implemented in or by a gNB may be referred to as a “gNB-type RSU,” and the like.

[0087] Various components may be described as performing a task or tasks, for convenience in the description. Such descriptions should be interpreted as including the phrase “configured to.” Reciting a component that is configured to perform one or more tasks is expressly intended not to invoke 35 U.S.C. § 112(f) interpretation for that component.

[0088] For one or more embodiments, at least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, or methods. For example, the baseband circuitry as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein. For another example, circuitry associated with a UE, base station, network element, etc., as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein.Attorney Docket No. 56990-0084W01 / P70861WO1

[0089] Example l is a method including: receiving an indication that an SRS resource set does not follow a unified TCI state in a multi-TRP deployment, where the SRS resource set comprises SRS resources for transmitting SRS to an UL-only TRP and determining, in response to receiving the indication, at least one of a pathloss offset or a CLPC index for a first SRS for transmission to the UL-only TRP.

[0090] Example 2 includes the method of example 1, where the unified TCI state represents an indicated TCI state for an UL / DL TRP.

[0091] Example 3 includes the method of example 1, where determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes: determining a pathloss offset configured in the unified TCI state, where the pathloss offset is associated with a selected SRS resource in the SRS resource set.

[0092] Example 4 includes the method of example 3, the selected SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0093] Example 5 includes the method of example 3, where selected SRS resource is a first listed SRS resource in the SRS resource set.

[0094] Example 6 includes the method of example 1, where determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes: receiving a configuration indicative of the pathloss offset.

[0095] Example 7 includes the method of example 6, where the configuration comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset value.

[0096] Example 8 includes the method of example 6, where the pathloss offset is configured independently for the SRS resource set.

[0097] Example 9 includes the method of example 6, where the pathloss offset is configured commonly for the SRS resource set with other SRS resource sets.

[0098] Example 10 includes the method of example 1, where the CLPC index is selected from two CLPC adjustment states configured for SRS in a BWP / CC.

[0099] Example 11 includes the method of example 11, where determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRSAttorney Docket No. 56990-0084W01 / P70861WO1includes: determining the CLPC index configured in the unified TCI state, wherein the CLPC index is associated with a selected SRS resource in the SRS resource set.

[0100] Example 12 includes the method of example 12, where the selected SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0101] Example 13 includes the method of example 12, where selected SRS resource is a first listed SRS resource in the SRS resource set.

[0102] Example 14 includes the method of example 1, where determining, in response to receiving the indication, at least one of the pathloss offset or the CLPC index for the first SRS includes: receiving a configuration indicative of the CLPC index.

[0103] Example 15 includes the method of example 15, where the configuration comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the CLPC index.

[0104] Example 16 includes the method of example 15, where the CLPC index is configured independently for the SRS resource set.

[0105] Example 17 includes the method of example 15, where the CLPC index is configured commonly for the SRS resource set with other SRS resource sets.

[0106] Example 18 includes the method of example 1, where determining, in response to receiving the indication, at least one of a pathloss offset or a CLPC index for a first SRS for transmission to the UL-only TRP includes: receiving a MAC CE indicative of at least one of the pathloss offset or the CLPC index.

[0107] Example 19 includes the method of example 19, where the MAC CE comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive at least one of the pathloss offset or the CLPC index.

[0108] Example 20 includes the method of example 19, where the MAC CE comprises updates at least one of the pathloss offset or the CLPC index for more than one SRS resource set simultaneously.

[0109] Example 21 includes the method of example 19, further including updating other SRS resource sets in a same SRS list with the at least one of the pathloss offset or the CLPC index.Attorney Docket No. 56990-0084W01 / P70861WO1

[0110] Example 22 is one or more processors configured to perform the method of any of examples 1-22.

[0111] Example 23 is a user equipment configured to perform the method of any of examples 1-22.

[0112] Example 24 is a user equipment including: a memory, a transceiver, and a processor coupled to the memory and configured to, when executing instructions stored in the memory, cause the UE to perform the method of any of claims 1-22.

[0113] Example 25 is a method including: determining that an SRS resource set is not configured to follow a unified TCI state in a multi-TRP deployment, where the SRS resource set comprises SRS resources for transmitting SRS to an UL-only TRP, determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP, and transmitting the SRS based on the pathloss offset.

[0114] Example 26 includes the method of example 25, where the unified TCI state represents an indicated TCI state for an UL / DL TRP.

[0115] Example 27 includes the method of example 25, where determining, in response to the SRS resource set not being configured, the pathloss offset or the CLPC index for the first SRS for transmission to the UL-only TRP includes: determining the pathloss offset configured for an SRS resource in the SRS resource set.

[0116] Example 28 includes the method of example 27, where the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0117] Example 29 includes the method of example 27, where the SRS resource is a first listed SRS resource in the SRS resource set.

[0118] Example 30 includes the method of example 25, where determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP includes: receiving a configuration indicative of the pathloss offset.

[0119] Example 31 includes the method of example 30, where the configuration comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset value.

[0120] Example 32 includes the method of example 30, where the pathloss offset is configured independently for the SRS resource set.Attorney Docket No. 56990-0084W01 / P70861WO1

[0121] Example 33 includes the method of example 30, where the pathloss offset is configured commonly for the SRS resource set with other SRS resource sets.

[0122] Example 34 includes the method of example 25, where determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP includes: receiving a MAC CE indicative of at least one of the pathloss offset or the CLPC index.

[0123] Example 35 includes the method of example 34, where the MAC CE comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset.

[0124] Example 36 includes the method of example 34, where the MAC CE comprises updates the pathloss offset for more than one SRS resource set simultaneously.

[0125] Example 37 includes the method of example 34, the method further including updating other SRS resource sets in a same SRS list with the at least one of the pathloss offset.

[0126] Example 38 is an apparatus including: memory, a transceiver, and one or more processors coupled to the memory and configured to, when executing instructions stored in the memory, cause the apparatus to perform operations including: determining that an SRS resource set is not configured to follow a unified TCI state in a multi-TRP deployment, wherein the SRS resource set comprises SRS resources for transmitting SRS to an UL-only TRP, determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP, and transmitting the SRS based on the pathloss offset.

[0127] Example 39 includes the apparatus of example 38, where determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP includes: determining the pathloss offset configured for an SRS resource in the SRS resource set.

[0128] Example 40 includes the apparatus of example 39, where the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0129] Example 41 includes the apparatus of example 38, where determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP includes: receiving a configuration indicative of the pathloss offset.Attorney Docket No. 56990-0084W01 / P70861WO1

[0130] Example 42 is a baseband processor configured to, when executing instructions stored in a memory, perform operations including: determining that an SRS resource set is not configured to follow a unified TCI state in a multi-TRP deployment, where the SRS resource set includes SRS resources for transmitting SRS to an UL-only TRP, determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP, and causing transmission of the SRS based on the pathloss offset.

[0131] Example 43 includes the baseband processor of example 42, where determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP includes: determining the pathloss offset configured for an SRS resource in the SRS resource set.

[0132] Example 44 includes the baseband processor of example 43, where the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

[0133] Example 45 is a user equipment including: a memory, a transceiver, and a processor coupled to the memory and configured to, when executing instructions stored in the memory, cause the UE to perform the method of any of claims 25-37.

[0134] Example 46 is one or more non-transitory computer-readable media including instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of a method described in or related to any of examples 1-21 or 25-37, or any other method or process described herein.

[0135] The foregoing description of one or more implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments.

[0136] Although the embodiments above have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to embrace all such variations and modifications.

[0137] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks ofAttorney Docket No. 56990-0084W01 / P70861WO1unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.

Claims

Attorney Docket No. 56990-0084W01 / P70861WO1CLAIMSWe Claim:

1. A method comprising:determining that a sounding reference signal (SRS) resource set is not configured to follow a unified Transmission Configuration Indication (TCI) state in a multi -transmission and reception point (TRP) deployment, wherein the SRS resource set comprises SRS resources for transmitting SRS to an uplink-only (UL-only) TRP;determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP; andtransmitting the SRS based on the pathloss offset.

2. The method of claim 1, wherein the unified TCI state represents an indicated TCI state for an UL / DL TRP.

3. The method of claim 1, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:determining the pathloss offset configured for an SRS resource in the SRS resource set.

4. The method of claim 3, wherein the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

5. The method of claim 3, wherein the SRS resource is a first listed SRS resource in the SRS resource set.

6. The method of claim 1, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:receiving a configuration indicative of the pathloss offset.Attorney Docket No. 56990-0084W01 / P70861WO17. The method of claim 6, wherein the configuration comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset value.

8. The method of claim 6, wherein the pathloss offset is configured independently for the SRS resource set.

9. The method of claim 6, wherein the pathloss offset is configured commonly for the SRS resource set with other SRS resource sets.

10. The method of claim 1, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:receiving a MAC CE indicative of the pathloss offset.

11. The method of claim 10, wherein the MAC CE comprises an indication whether a first indicated unified TCI State or a second indicated unified TCI State is used to derive the pathloss offset.

12. The method of claim 10, wherein the MAC CE comprises updates the pathloss offset for more than one SRS resource set simultaneously.

13. The method of claim 10, the method further comprising:updating other SRS resource sets in a same SRS list with the at least one of the pathloss offset.

14. An apparatus comprising:memory;a transceiver; andone or more processors coupled to the memory and configured to, when executing instructions stored in the memory, cause the apparatus to perform operations comprising:determining that a sounding reference signal (SRS) resource set is not configured to follow a unified Transmission Configuration Indication (TCI) state in aAttorney Docket No. 56990-0084W01 / P70861WO1multi-transmission and reception point (TRP) deployment, wherein the SRS resource set comprises SRS resources for transmitting SRS to an uplink-only (UL-only) TRP;determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP; andtransmitting the SRS based on the pathloss offset.

15. The apparatus of claim 14, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:determining the pathloss offset configured for an SRS resource in the SRS resource set.

16. The apparatus of claim 15, wherein the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

17. The apparatus of claim 14, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:receiving a configuration indicative of the pathloss offset.

18. A baseband processor configured to, when executing instructions stored in a memory, perform operations comprising:determining that a sounding reference signal (SRS) resource set is not configured to follow a unified Transmission Configuration Indication (TCI) state in a multi -transmission and reception point (TRP) deployment, wherein the SRS resource set comprises SRS resources for transmitting SRS to an uplink-only (UL-only) TRP;determining, in response to the SRS resource set not being configured, a pathloss offset for an SRS for transmission to the UL-only TRP; andcausing transmission of the SRS based on the pathloss offset.

19. The baseband processor of claim 18, wherein determining, in response to the SRS resource set not being configured, the pathloss offset for the SRS for transmission to the UL-only TRP comprises:determining the pathloss offset configured for an SRS resource in the SRS resource set.Attorney Docket No. 56990-0084W01 / P70861WO120. The baseband processor of claim 19, wherein the SRS resource has a lowest SRS-Resourceld in the SRS resource set.

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