Patent Description:
Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for channel measurements and concurrent messages for user equipment with multiple transmit-receive points.

"Downlink" (or forward link) refers to the communication link from the BS to the UE, and "uplink" (or reverse link) refers to the communication link from the UE to the BS.

<CIT> (<CIT>) relates to the configuration of measurement and reporting for sidelink channels.

While aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios. Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements. For example, some aspects may be implemented via integrated chip embodiments or other non-module-component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, or artificial intelligence-enabled devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects. For example, transmission and reception of wireless signals may include a number of components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). It is intended that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, or end-user devices of varying size, shape, and constitution.

The transceiver may be used by a processor (e.g., controller/processor <NUM>) and memory <NUM> to perform aspects of any of the methods described herein (for example, with reference to <FIG>).

The transceiver may be used by a processor (e.g., controller/processor <NUM>) and memory <NUM> to perform aspects of any of the methods described herein (for example, with reference to <FIG>).

Controller/processor <NUM> of base station <NUM>, controller/processor <NUM> of UE <NUM>, and/or any other component(s) of <FIG> may perform one or more techniques associated with channel measurements and concurrent messages for UEs with multiple TRPs, as described in more detail elsewhere herein. For example, controller/processor <NUM> of base station <NUM>, controller/processor <NUM> of UE <NUM>, and/or any other component(s) of <FIG> may perform or direct operations of, for example, process <NUM> of <FIG>, process <NUM> of <FIG>, and/or other processes as described herein. Memories <NUM> and <NUM> may store data and program codes for base station <NUM> and UE <NUM>, respectively. In some aspects, memory <NUM> and/or memory <NUM> may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station <NUM> and/or the UE <NUM>, may cause the one or more processors, the UE <NUM>, and/or the base station <NUM> to perform or direct operations of, for example, process <NUM> of <FIG>, process <NUM> of <FIG>, and/or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.

In some aspects, a first UE (e.g., the UE 120a) may include means for transmitting, to a second UE (e.g., the UE 120e) on a sidelink channel, a configuration message, wherein the configuration message includes an indication of a first set of reference signals associated with a first TRP of the first UE, an indication of a second set of reference signals associated with a second TRP of the first UE, and an indication to the second UE to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals; means for transmitting, using the first TRP of the first UE, the first set of reference signals to the second UE on the sidelink channel; and/or means for transmitting, using the second TRP of the first UE, the second set of reference signals to the second UE on the sidelink channel. The means for the first UE to perform operations described herein may include, for example, one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, or memory <NUM>.

In some aspects, a first UE (e.g., the UE 120e) may include means for receiving, from a second UE (e.g., the UE 120a) on a sidelink channel, a configuration message, wherein the configuration message includes an indication of a first set of reference signals associated with a first TRP of the second UE, an indication of a second set of reference signals associated with a second TRP of the second UE, and an indication to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals; means for measuring the first set of reference signals from the second UE on the sidelink channel; and/or means for measuring the second set of reference signals from the second UE on the sidelink channel, wherein measurements based at least in part on the second set of reference signals are not combined with measurements based at least in part on the first set of reference signals. The means for the first UE to perform operations described herein may include, for example, one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, or memory <NUM>.

<FIG> is a diagram illustrating an example <NUM> of a multi-TRP UE (sometimes referred to as a multi-panel UE), in accordance with the present disclosure. As shown in <FIG>, one or more TRPs <NUM> may communicate with the same base station <NUM>.

A TRP <NUM> may correspond to a UE <NUM> described above in connection with <FIG>. For example, multiple TRPs <NUM> may be included in a single UE <NUM> and may share hardware circuitry, a hardware controller and/or other hardware components. In some aspects, different TRPs <NUM> may include different antennas (also referred to as panels) on the UE <NUM>. Accordingly, a TRP <NUM> may be referred to as a cell, a panel, an antenna array, or an array, among other examples.

In some aspects, multiple TRPs <NUM> may transmit communications (e.g., the same communication or different communications) in the same transmission time interval (TTI) (e.g., a slot, a mini-slot, a subframe, a symbol, and/or another portion of a time domain) or different TTIs using different quasi-co-location (QCL) relationships (e.g., different spatial parameters, different transmission configuration indicator (TCI) states, different precoding parameters, different beamforming parameters, and/or other parameters). In some aspects, a TCI state may be used to indicate one or more QCL relationships. A TRP <NUM>, when included in one or more UEs <NUM>, may be configured to individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs <NUM>) communicate with a base station <NUM>. Similarly, a TRP <NUM>, when included in one or more UEs <NUM>, may be configured to individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs <NUM>) serve traffic over a sidelink channel to another UE, as described below in connection with <FIG>.

The multiple TRPs <NUM> (shown as TRP A and TRP B), when included in one or more UEs <NUM>, may communicate with the same base station <NUM> in a coordinated manner (e.g., using coordinated multipoint transmissions) to improve reliability and/or increase throughput. Similarly, the multiple TRPs <NUM>, when included in one or more UEs <NUM>, may communicate over a sidelink channel to another UE in a coordinated manner (e.g., using coordinated multipoint transmissions) to improve reliability and/or increase throughput. The TRPs <NUM> may coordinate such communications via an interface between the TRPs <NUM> (e.g., a shared hardware controller and/or other shared hardware circuitry). The different TRPs <NUM> may communicate with the base station <NUM> using different QCL relationships (e.g., different TCI states), different DMRS ports, and/or different layers (e.g., of a multi-layer communication).

In a first multi-TRP reception mode (e.g., Mode <NUM> in <FIG>), a single physical downlink control channel (PDCCH) may be used to schedule downlink data communications for a single physical downlink shared channel (PDSCH). In this case, multiple TRPs <NUM> (e.g., TRP A and TRP B) may receive communications from the base station <NUM> on the same PDSCH. For example, a communication may be transmitted using a single codeword with different spatial layers for different TRPs <NUM> (e.g., where one codeword maps to a first set of layers transmitted by a first TRP 305a and maps to a second set of layers transmitted by a second TRP 305b). As another example, a communication may be transmitted using multiple codewords, where different codewords are received by different TRPs <NUM> (e.g., using different sets of layers). In either case, different TRPs <NUM> may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, a first TRP 305a may use a first QCL relationship or a first TCI state for a first set of DMRS ports corresponding to a first set of layers, and a second TRP 305b may use a second (different) QCL relationship or a second (different) TCI state for a second (different) set of DMRS ports corresponding to a second (different) set of layers. In some aspects, a TCI state in downlink control information (DCI) (e.g., transmitted on the PDCCH, such as DCI format 1_0, DCI format 1_1, and/or another DCI format) may indicate the first QCL relationship (e.g., by indicating a first TCI state) and the second QCL relationship (e.g., by indicating a second TCI state). The first and the second TCI states may be indicated using a TCI field in the DCI. In general, the TCI field can indicate a single TCI state (for single-TRP reception) or multiple TCI states (for multi-TRP reception as discussed here) in this multi-TRP reception mode (also referred to as "Mode <NUM>").

In a second multi-TRP reception mode (e.g., Mode <NUM> in <FIG>), multiple PDCCHs may be used to schedule downlink data communications for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH). In this case, a first PDCCH may schedule a first codeword to be received by a first TRP 305a, and a second PDCCH may schedule a second codeword to be received by a second TRP 305b. Furthermore, first DCI (e.g., received by the first TRP <NUM>) may schedule a first PDSCH communication associated with a first set of DMRS ports with a first QCL relationship (e.g., indicated by a first TCI state) for the first TRP 305a, and second DCI (e.g., received by the second TRP <NUM>) may schedule a second PDSCH communication associated with a second set of DMRS ports with a second QCL relationship (e.g., indicated by a second TCI state) for the second TRP 305b. In this case, DCI (e.g., having DCI format 1_0, DCI format 1_1, and/or the like) may indicate a corresponding TCI state for a TRP <NUM> corresponding to the DCI. The TCI field of a DCI indicates the corresponding TCI state (e.g., the TCI field of the first DCI indicates the first TCI state and the TCI field of the second DCI indicates the second TCI state).

Although described above with respect to communicating with one or more base stations <NUM>, the description applies equally to the multiple TRPs <NUM> communicating on a sidelink channel to another UE.

<FIG> is a diagram illustrating an example <NUM> of sidelink communications, in accordance with the present disclosure. As shown in <FIG>, a first UE <NUM>-<NUM> may communicate with a second UE <NUM>-<NUM> (and one or more other UEs <NUM>) via one or more sidelink channels <NUM>. The UEs <NUM>-<NUM> and <NUM>-<NUM> may communicate using the one or more sidelink channels <NUM> for P2P communications, D2D communications, V2X communications (e.g., which may include V2V communications, V2I communications, and/or vehicle-to-pedestrian (V2P) communications) and/or mesh networking. In some aspects, the UEs <NUM> (e.g., UE <NUM>-<NUM> and/or UE <NUM>-<NUM>) may correspond to one or more other UEs described elsewhere herein, such as UE <NUM>. In some aspects, the one or more sidelink channels <NUM> may use a PC5 interface and/or may operate in a high frequency band (e.g., the <NUM> band). Additionally, or alternatively, the UEs <NUM> may synchronize timing of TTIs (e.g., frames, subframes, slots, or symbols) using global navigation satellite system (GNSS) timing.

As further shown in <FIG>, the one or more sidelink channels <NUM> may include a physical sidelink control channel (PSCCH) <NUM>, a physical sidelink shared channel (PSSCH) <NUM>, and/or a physical sidelink feedback channel (PSFCH) <NUM>. The PSCCH <NUM> may be used to communicate control information, similar to a PDCCH and/or a physical uplink control channel (PUCCH) used for cellular communications with a base station <NUM> via an access link or an access channel. The PSSCH <NUM> may be used to communicate data, similar to a PDSCH and/or a physical uplink shared channel (PUSCH) used for cellular communications with a base station <NUM> via an access link or an access channel. For example, the PSCCH <NUM> may carry sidelink control information (SCI) <NUM>, which may indicate various control information used for sidelink communications, such as one or more resources (e.g., time resources, frequency resources, and/or spatial resources) where a transport block (TB) <NUM> may be carried on the PSSCH <NUM>. The TB <NUM> may include data. The PSFCH <NUM> may be used to communicate sidelink feedback <NUM>, such as hybrid automatic repeat request (HARQ) feedback (e.g., acknowledgement or negative-acknowledgement (ACK/NACK) information), transmit power control (TPC), and/or a scheduling request (SR).

In some aspects, the one or more sidelink channels <NUM> may use resource pools. For example, a scheduling assignment (e.g., included in SCI <NUM>) may be transmitted in subchannels using specific resource blocks (RBs) across time. In some aspects, data transmissions (e.g., on the PSSCH <NUM>) associated with a scheduling assignment may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, a scheduling assignment and associated data transmissions are not transmitted on adjacent RBs.

In some aspects, a UE <NUM> may operate using a transmission mode where resource selection and/or scheduling is performed by the UE <NUM> (e.g., rather than a base station <NUM>). In some aspects, the UE <NUM> may perform resource selection and/or scheduling by sensing channel availability for transmissions. For example, the UE <NUM> may measure an RSSI parameter (e.g., a sidelink-RSSI (S-RSSI) parameter) associated with various sidelink channels, may measure an RSRP parameter (e.g., a PSSCH-RSRP parameter) associated with various sidelink channels, and/or may measure an RSRQ parameter (e.g., a PSSCH-RSRQ parameter) associated with various sidelink channels, and may select a channel for transmission of a sidelink communication based at least in part on the measurement(s).

Additionally, or alternatively, the UE <NUM> may perform resource selection and/or scheduling using SCI <NUM> received in the PSCCH <NUM>, which may indicate occupied resources and/or channel parameters. Additionally, or alternatively, the UE <NUM> may perform resource selection and/or scheduling by determining a channel busy rate (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that the UE <NUM> can use for a particular set of subframes).

In the transmission mode where resource selection and/or scheduling is performed by a UE <NUM>, the UE <NUM> may generate sidelink grants, and may transmit the grants in SCI <NUM>. A sidelink grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks to be used for the upcoming sidelink transmission on the PSSCH <NUM> (e.g., for TBs <NUM>), one or more subframes to be used for the upcoming sidelink transmission, and/or a MCS to be used for the upcoming sidelink transmission. In some aspects, a UE <NUM> may generate a sidelink grant that indicates one or more parameters for semi-persistent scheduling (SPS), such as a periodicity of a sidelink transmission. Additionally, or alternatively, the UE <NUM> may generate a sidelink grant for event-driven scheduling, such as for an on-demand sidelink message.

<FIG> is a diagram illustrating an example <NUM> of sidelink communications and access link communications, in accordance with the present disclosure. As shown in <FIG>, a transmitter (Tx)/receiver (Rx) UE <NUM> and an Rx/Tx UE <NUM> may communicate with one another via a sidelink, as described above in connection with <FIG>. As further shown, in some sidelink modes, a base station <NUM> may communicate with the Tx/Rx UE <NUM> via a first access link. Additionally, or alternatively, in some sidelink modes, the base station <NUM> may communicate with the Rx/Tx UE <NUM> via a second access link. The Tx/Rx UE <NUM> and/or the Rx/Tx UE <NUM> may correspond to one or more UEs described elsewhere herein, such as the UE <NUM> of <FIG>. Thus, a direct link between UEs <NUM> (e.g., via a PC5 interface) may be referred to as a sidelink, and a direct link between a base station <NUM> and a UE <NUM> (e.g., via a Uu interface) may be referred to as an access link. Sidelink communications may be transmitted via the sidelink, and access link communications may be transmitted via the access link. An access link communication may be either a downlink communication (from a base station <NUM> to a UE <NUM>) or an uplink communication (from a UE <NUM> to a base station <NUM>).

According to the invention, a UE includes two TRPs. The TRPs may be separated by a few meters (e.g., like front and rear panels of a car or other vehicle) or may be separated by tens of meters (e.g., like in trucks, trailers, and/or other large UEs). For multi-TRP UEs, some TRPs may have greater signal reliability and/or strength than other TRPs for transmitting and receiving depending on environmental factors (e.g., intervening objects that interfere with transmissions to and from one TRP but not to another). Additionally, or alternatively, some TRPs may have greater signal reliability and/or strength than other TRPs for transmitting or receiving depending on different distances between the TRPs and an intended recipient of the transmitting or a sender associated with the receiving, respectively. For example, one TRP may be closer to a peer UE and/or a base station than another TRP. These disparities in reliability and/or strength may be particularly large when the multi-TRP UE is communicating on a sidelink channel to a peer UE.

Techniques and apparatuses described herein enable a multi-TRP UE (e.g., the UE 120a of <FIG>, described below) to measure separate indicators of signal strength (such as RSRP parameters, CQI parameters, signal-to-interference-and-noise ratios (SINRs), and/or other parameters) for the TRPs. By measuring separate indicators, the UE 120a may obtain a more accurate measurement of signal quality and/or reliability from the TRPs. Accordingly, the UE 120a may use the indicators to coordinate simultaneous transmission to multiple peer UEs (e.g., UEs 120b and 120c of <FIG>, as described below), which reduces latency and efficiently reuses network resources to reduce overhead. Additionally, or alternatively, the UE 120a may use the indicators to coordinate combined transmission to a single peer UE (e.g., UE 120b of <FIG>, as described below), which increases reliability and signal strength. In some aspects, the UE 120a may use combined transmission to additionally, or alternatively, enable a higher MCS in order to conserve network resources during transmission.

<FIG> is a diagram illustrating an example <NUM> of measuring signal quality from a multi-TRP UE 120a, in accordance with the present disclosure. As shown in <FIG>, example <NUM> includes a UE 120a with a plurality of TRPs (e.g., first TRP 305a and second TRP 305b) in communication (e.g., on a sidelink channel, as described above in connection with <FIG>) with a second UE 120b. Although the description below will focus on the UE 120a with two TRPs 305a and 305b, the description similarly applies to a UE 120a with additional TRPs (e.g., three TRPs, four TRPs, and so on).

As shown by reference number <NUM>, the multi-TRP UE 120a may transmit, and the second UE 120b may receive, on the sidelink channel, a configuration message. The configuration message may include an indication of a first set of reference signals associated with the first TRP 305a of the multi-TRP UE 120a, an indication of a second set of reference signals associated with the second TRP 305b of the multi-TRP UE 120a, and an indication to the second UE 120b to refrain from combining measurements, based at least in part on the first set of reference signals, with measurements based at least in part on the second set of reference signals.

In some aspects, the multi-TRP UE 120a may transmit the configuration message using the first TRP 305a and/or the second TRP 305b. Accordingly, as shown in <FIG>, the second UE 120b may receive the configuration message from the multi-TRP UE 120a on the sidelink channel.

In some aspects, the configuration message may be included in a radio resource control (RRC) message. Additionally, or alternatively, the configuration message may be included in SCI.

In some aspects, the indication of the first set of reference signals may include at least one first measurement gap offset for the first set of reference signals and at least one first measurement gap period for the first set of reference signals. Additionally, or alternatively, the indication of the second set of reference signals includes at least one second measurement gap offset for the second set of reference signals and at least one second measurement gap period for the second set of reference signals.

Accordingly, the at least one first measurement gap offset may be different from the at least one second measurement gap offset. For example, for the two TRPs 305a and 305b depicted in <FIG>, the indication of the first set of reference signals may include an offset and period (<NUM>,<NUM>), and the indication of the second set of reference signals may include an offset and period (<NUM>,<NUM>). These indications may be separate from each other or may be combined in a list (e.g., {(<NUM>,<NUM>), (<NUM>,<NUM>)}) for encoding in a message. In this example, the offsets indicate that the second and fifth subframes are for reference signal measurement (e.g., channel state information reference signal (CSI-RS) measurement). As used herein, a "subframe" may refer a portion of a radio frame within an LTE, <NUM>, or other wireless communication structure. In some aspects, a subframe may include one or more slots, where each slot has one or more symbols. Moreover, a "symbol" may refer to an OFDM symbol or other similar symbol within a slot. Accordingly, one TRP (e.g., the first TRP 305a) may transmit the first set of reference signals in each second subframe, and the other TRP (e.g., the second TRP 305b) may transmit the second set of reference signals in each fifth subframe.

In this example, the at least one first measurement gap period includes a same period as the at least one second measurement gap period. As an alternative, the at least one first measurement gap period may include a different period than the at least one second measurement gap period. For example, the indication of the first set of reference signals may include an offset and period (<NUM>,<NUM>), and the indication of the second set of reference signals may include an offset and period (<NUM>,<NUM>). The at least one first measurement gap period and the at least one second measurement gap period may be selected to avoid collision (e.g., by selecting periods such that a modulo of the at least one second period and the at least one first period is zero, as shown in the example above).

As an alternative, the multi-TRP UE 120a may prioritize the first set of reference signals over the second set of reference signals or may prioritize the second set of reference signals over the first set of reference signals, such that only the first set of reference signals or the second set of reference signals, respectively, are sent during any subframe (or slot) in which a collision is expected. In some aspects, the TRPs may also measure each other's reference signals during transmission (e.g., as described below in connection with <FIG>).

The indication may additionally, or alternatively, include information identifying at least one first port for the first set of reference signals and at least one second port for the second set of reference signals. Accordingly, the first set of reference signals and the second set of reference signals may be orthogonal in frequency in addition to or in lieu of being orthogonal in time, as described above.

Accordingly, as described above, the first set of reference signals and the second set of reference signals may be multiplexed within one or more subframes or slots in a measurement period. In some aspects, the first set of reference signals and the second set of reference signals may be multiplexed using time division multiplexing, code division multiplexing, frequency division multiplexing, or a combination thereof.

As shown by reference number 615a, the multi-TRP UE 120a may transmit, using the first TRP 305a of the UE 120a, the first set of reference signals to the second UE 120b on the sidelink channel. For example, the first set of reference signals may include CSI-RSs, as described above.

Accordingly, the second UE 120b may measure the first set of reference signals from the multi-TRP UE 120a on the sidelink channel. For example, the second UE 120b may determine one or more indicators of signal quality and/or strength based on the first set of reference signals.

As shown by reference number 615b, the multi-TRP UE 120a may transmit, using the second TRP 305b of the UE 120a, the second set of reference signals to the second UE 120b on the sidelink channel. For example, the second set of reference signals may include CSI-RSs, as described above.

Accordingly, the second UE 120b may measure the second set of reference signals from the multi-TRP UE 120a on the sidelink channel. For example, the second UE 120b may determine one or more indicators of signal quality and/or strength based on the first set of reference signals.

As described above, the second UE 120b does not combine measurements, based at least in part on the second set of reference signals, with measurements based at least in part on the first set of reference signals. For example, the configuration message from the multi-TRP UE 120a may include at least one bit or other information that indicates to the second UE 120b not to combine the measurements, based at least in part on the second set of reference signals, with the measurements based at least in part on the first set of reference signals.

As shown by reference number <NUM>, the second UE 120b may transmit, and the multi-TRP UE 120a may receive, at least one report calculated by the second UE 120b. In some aspects, the second UE 120b may transmit the at least one report based at least in part on measuring the first set of reference signals and measuring the second set of reference signals. Accordingly, the multi-TRP UE 120a may receive the at least one report based at least in part on transmitting the first set of reference signals and transmitting the second set of reference signals. As shown in <FIG>, the multi-TRP UE 120a may receive the at least one report using the first TRP 305a (shown by reference number 620a) and/or the second TRP 305b (shown by reference number 620b).

In some aspects, the at least one report includes at least one of a first SINR, a first RSRP, or a combination thereof for the first set of reference signals, and at least one of a second SINR, a second RSRP, or a combination thereof for the second set of reference signals. Additionally, or alternatively, the at least one report may include signal-to-interference ratios (SIRs) and/or other measurements.

In some aspects, the at least one report may include a first report based at least in part on measuring the first set of reference signals and a second report based at least in part on measuring the second set of reference signals. For example, the second UE 120b may generate a first CQI report based at least in part on measuring the first set of reference signals and a second CQI report based at least in part on measuring the second set of reference signals. Accordingly, the second UE 120b may transmit two or more reports to the multi-TRP UE 120a, where each report is associated with a different TRP.

As an alternative, the at least one report may include a report with an index relating a first portion of the report to the first set of reference signals and a second portion of the report to the second set of reference signals. For example, the second UE 120b may generate a single CQI report with measurements included in a list with identifiers that correspond to different TRPs of the multi-TRP UE 120a. For example, an index of TRPs may map the identifiers included in the list of measurements to corresponding TRPs.

By configuring measurements of reference signals from the TRPs separately, the multi-TRP UE 120a may receive more accurate reporting of signal quality from the TRPs. Moreover, the multi-TRP UE 120a may use the reports generated as described above to reduce latency and overhead with simultaneous transmission (e.g., as described below in connection with <FIG>) and/or to improve signal quality and/or reliability with combined transmission (e.g., as described below in connection with <FIG>).

<FIG> is a diagram illustrating an example <NUM> of simultaneous transmission from a multi-TRP UE 120a, in accordance with the present disclosure. As shown in <FIG>, example <NUM> includes a UE 120a with a plurality of TRPs (e.g., first TRP 305a and second TRP 305b) in communication (e.g., on a sidelink channel, as described above in connection with <FIG>) with a second UE 120b and a third UE 120c. Although the description below will focus on the UE 120a with two TRPs 305a and 305b, the description similarly applies to a UE 120a with additional TRPs (e.g., three TRPs, four TRPs, and so on).

In example <NUM>, the multi-TRP UE 120a may determine, based at least in part on at least one report, that the multi-TRP UE 120a is capable of simultaneously transmitting to a second UE 120b and the third UE 120c. For example, the UE 120a may receive the at least one report as described above in connection with <FIG>.

In some aspects, determining that the multi-TRP UE 120a is capable of simultaneously transmitting to the second UE 120b and the third UE 120c may include determining that at least one of a first SIR associated with the second UE 120b, a second SIR associated with the third UE 120c, or a combination thereof satisfies a condition. For example, the multi-TRP UE 120a may determine whether the first SIR, the second SIR, a combination of the first SIR and the second SIR, and/or a minimum (or maximum) of the first SIR and the second SIR satisfies a threshold.

In one example, the second UE 120b may have measured a signal strength of -<NUM> dBm based at least in part on a first set of reference signals from the first TRP 305a and a signal strength of -<NUM> dBm based at least in part on a second set of reference signals from the second TRP 305b. In addition, the third UE 120c may have measured a signal strength of -<NUM> dBm based at least in part on a first set of reference signals from the first TRP 305a and a signal strength of -<NUM> dBm based at least in part on a second set of reference signals from the second TRP 305b. Accordingly, the multi-TRP UE 120a may determine (e.g., based at least in part on the measurements described above and/or from the at least one report) that a first SIR associated with the second UE 120b is <NUM> dB and a second SIR associated with the third UE 120c is <NUM> dB. In this example, the multi-TRP UE 120a may determine that the multi-TRP UE 120a is capable of simultaneous transmission to the second UE 120b and the third UE 120c (e.g., when the condition is a minimum SIR of <NUM> dB or less).

In some aspects, determining that the multi-TRP UE 120a is capable of simultaneously transmitting to the second UE 120b and the third UE 120c may include adding the second UE 120b and the third UE 120c as a set to a list of UEs suitable for simultaneous transmission. For example, the multi-TRP 120a may maintain the list of sets of UEs to which simultaneous transmission is possible.

In some aspects, the multi-TRP UE 120a may maintain the list using an iterative process. For example, the multi-TRP UE 120a may select a minimum SIR and/or other condition based at least in part on a measure of signal strength. Based at least in part on the condition, the multi-TRP UE 120a may add pairs of UEs (or other sets including three or more UEs) to the list based at least in part on satisfying the condition (e.g., by having a first SIR and a second SIR, as described above, that satisfy the minimum SIR). The multi-TRP UE 120a may add sets of UEs to the list by modifying the condition based at least in part on a number of successful transmissions to one or more sets of UEs on the list of UEs suitable for simultaneous transmission. For example, after n number of successful transmissions to sets of UEs on the list, the multi-TRP UE 120a may lower the minimum SIR and/or otherwise modify the condition such that new sets of UEs that satisfy the modified condition are added to the list. Similarly, the multi-TRP UE 120a may remove sets of UEs from the list by modifying the condition based at least in part on a number of unsuccessful transmissions to one or more sets of UEs on the list of UEs suitable for simultaneous transmission. For example, after m number of unsuccessful transmissions to sets of UEs on the list, the multi-TRP UE 120a may raise the minimum SIR and/or otherwise modify the condition such that one or more sets of UEs that do not satisfy the modified condition are removed from the list.

As shown in <FIG>, and in connection with reference number <NUM>, the multi-TRP UE 120a may transmit, on a first resource and using the first TRP 305a, a signal (e.g., a first message) to the second UE 120b. As further shown in <FIG>, and in connection with reference number <NUM>, the multi-TRP UE 120a may transmit, on a second resource overlapping at least in part with the first resource and using the second TRP 305b, a signal (e.g., a second message) to the third UE 120c. For example, the first resource and the second resource may overlap in time and/or frequency.

In some aspects, the multi-TRP UE 120a may transmit to the second UE 120b and the third UE 120c based at least in part on determining that the multi-TRP UE 120a is capable of simultaneously transmitting to the second UE 120b and the third UE 120c. For example, as described above, one or more measures of signal strength associated with the second UE 120b and/or the third UE 120c may satisfy a condition set by the multi-TRP UE 120a. By using the simultaneous transmission as shown in <FIG>, the multi-TRP UE 120a reduces resource overhead by using at least partially overlapping resources to transmit to the second UE 120b and the third UE 120c. Additionally, the multi-TRP UE 120a reduces latency in communicating with the second UE 120b and the third UE 120c because communications to the second UE 120b can be at least partially simultaneous in time with communications to the third UE 120c.

<FIG> is a diagram illustrating an example <NUM> of combined transmission from a multi-TRP UE 120a, in accordance with the present disclosure. As shown in <FIG>, example <NUM> includes a UE 120a with a plurality of TRPs (e.g., first TRP 305a and second TRP 305b) in communication (e.g., on a sidelink channel, as described above in connection with <FIG>) with a second UE 120b. Although the description below will focus on the UE 120a with two TRPs 305a and 305b, the description similarly applies to a UE 120a with additional TRPs (e.g., three TRPs, four TRPs, and so on).

In example <NUM>, the multi-TRP UE 120a may adjust at least one of a transmission power for the first TRP 305a, a transmission power for the second TRP 305b, or a combination thereof, based at least in part on at least one report of signal quality associated with the first TRP 305a and the second TRP 305b. For example, the multi-TRP UE 120a may adjust the transmission power for the first TRP 305a, the transmission power for the second TRP 305b, or a combination thereof, based on at least one report received as described above in connection with <FIG>.

In some aspects, the multi-TRP UE 120a may be configured for a first MCS, and the adjusting may be based at least in part on configuring the multi-TRP UE 120a for a second MCS. For example, the second MCS may be a higher MCS than the first MCS. Accordingly, the multi-TRP UE 120a may use fewer network resources when transmitting using the second MCS as compared with transmitting using the first MCS.

Additionally, or alternatively, the adjusting may be based at least in part on at least one measurement, included in the at least one report, satisfying at least one condition. For example, the multi-TRP UE 120a may adjust the transmission power for the first TRP 305a, the transmission power for the second TRP 305b, or a combination thereof when a first measure of signal strength associated with the first TRP 305a and the second UE 120b and/or a second measure of signal strength associated with the second TRP 305b and the second UE 120b satisfies a threshold. For example, the multi-TRP UE 120a may determine whether a first RSRP associated with the first TRP 305a and the second UE 120b, a second RSRP associated with the second TRP 305b and the second UE 120b, a combination of the first RSRP and the second RSRP, and/or a minimum (or maximum) of the first RSRP and the second RSRP satisfies the threshold.

As shown by reference numbers 805a and 805b, the UE 120a may transmit a message or signal to the second UE 120b from both the first TRP 305a and the second TRP 305b. For example, the multi-TRP UE 120a may transmit using both the first TRP 305a and the second TRP 305b based at least in part on the at least one report (e.g., when a first RSRP associated with the first TRP 305a and the second UE 120b and/or a second RSRP associated with the second TRP 305b and the second UE 120b satisfy a threshold) and/or a determination made based at least in part on the at least one report (e.g., by determining that the multi-TRP UE 120a is capable of using a higher MCS with the UE 120b by adjusting the transmission power for the first TRP 305a, the transmission power for the second TRP 305b, or a combination thereof), as described above.

In some aspects, the second UE 120b may combine decoded data from the signal transmitted from both the first TRP and the second TRP. For example, the multi-TRP UE 120a may have transmitted SCI to the second UE 120b that includes an indication to combine decoded data from the signal transmitted from both the first TRP and the second TRP. In some aspects, the multi-TRP UE 120a may have transmitted a QCL indicator and/or the like to trigger the second UE 120b to combine the decoded data. In some aspects, the second UE 120b may combine the decoded data using log-likelihood ratio (LLR) and/or another decoding technique.

Additionally, or alternatively, and as described above, the second UE 120b may be (at least initially) configured for the first MCS, and the message or signal may be received using the second MCS. For example, the second MCS may be a higher MCS than the first MCS and enabled by combined transmission from the first TRP 305a and the second TRP 305b. Accordingly, the second MCS may require fewer network resources from the multi-TRP UE 120a during transmission than the first MCS.

In some aspects, the multi-TRP UE 120a may apply resource exclusion before using combined transmission as described above. For example, the multi-TRP UE 120a may determine a resource exclusion for the first TRP 305a and a resource exclusion for the second TRP 305b based at least in part on the adjusting. For example, after adjusting, the multi-TRP UE 120a may transmit CSI-RSs (and/or other reference signals) between TRPs (e.g., from the first TRP 305a to the second TRP 305b and/or from the second TRP 305b to the first TRP 305a) for measurement (e.g., as RSRP parameters and/or other parameters). Additionally, or alternatively, the multi-TRP UE 120a may perform the measurement using synchronization signal blocks (SSBs), DMRSs, and/or other reference signals. The multi-TRP UE 120a may transmit to the second UE 120b using both the first TRP 305a and the second TRP 305b based at least in part on the resource exclusion, where the resource exclusion is based at least in part on the measurement after adjusting.

In some aspects, determining the resource exclusion may be based at least in part on a first resource map associated with the first TRP 305a and a second resource map associated with the second TRP 305b. For example, the multi-TRP UE 120a may select one or more resources from the first resource map and one or more resources from the second resource map such that all selected resources satisfy one or more resource exclusion criteria applied by the multi-TRP UE 120a.

By using combined transmission as described above, the multi-TRP UE 120a may enable a higher MCS for transmission to the second UE 120b than otherwise enabled when using only one TRP. Accordingly, the multi-TRP UE 120a uses fewer network resources when transmitting on the higher MCS. Additionally, or alternatively, the multi-TRP UE 120a improves signal quality and/or reliability by using more than one TRP to transmit to the second UE 120b. This can also reduce latency because the multi-TRP UE 120a can transmit a message or signal using more than one TRP rather than repeatedly transmitting the message or signal as is often required when signal quality and/or reliability is low.

<FIG> is a diagram illustrating an example process <NUM> performed, for example, by a first UE, in accordance with the present disclosure. Example process <NUM> is an example where the first UE (e.g., multi-TRP UE 120a) performs operations associated with channel measurements and concurrent messages for UEs with multiple TRPs.

As shown in <FIG>, in some aspects, process <NUM> may include transmitting, to a second UE (e.g., UE 120b) on a sidelink channel, a configuration message (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>) may transmit, to the second UE on the sidelink channel, the configuration message, as described above. In some aspects, the configuration message includes an indication of a first set of reference signals associated with a first TRP of the first UE, an indication of a second set of reference signals associated with a second TRP of the first UE, and an indication to the second UE to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals.

As further shown in <FIG>, in some aspects, process <NUM> may include transmitting, using the first TRP of the first UE, the first set of reference signals to the second UE on the sidelink channel (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>) may transmit, using the first TRP of the first UE, the first set of reference signals to the second UE on the sidelink channel, as described above.

As further shown in <FIG>, in some aspects, process <NUM> may include transmitting, using the second TRP of the first UE, the second set of reference signals to the second UE on the sidelink channel (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>) may transmit, using the second TRP of the first UE, the second set of reference signals to the second UE on the sidelink channel, as described above.

In a first aspect, the configuration message is an RRC message.

In a second aspect, alone or in combination with the first aspect, the indication of the first set of reference signals includes at least one first measurement gap offset for the first set of reference signals and at least one first measurement gap period for the first set of reference signals.

In a third aspect, alone or in combination with one or more of the first and second aspects, the indication of the second set of reference signals includes at least one second measurement gap offset for the second set of reference signals and at least one second measurement gap period for the second set of reference signals, the at least one first measurement gap offset is different from the at least one second measurement gap offset.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the at least one first measurement gap period includes a same period as the at least one second measurement gap period.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the indication of the first set of reference signals includes information identifying at least one first port for the first set of reference signals and at least one second port for the second set of reference signals.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the first set of reference signals and the second set of reference signals are multiplexed within one or more subframes or slots in a measurement period.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the first set of reference signals and the second set of reference signals are multiplexed using time division multiplexing, code division multiplexing, frequency division multiplexing, or a combination thereof.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process <NUM> further includes receiving (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>), from the second UE and based at least in part on transmitting the first set of reference signals and transmitting the second set of reference signals, at least one report calculated by the second UE, where measurements based at least in part on the first set of reference signals and included in the at least one report are not combined with measurements based at least in part on the second set of reference signals and included in the at least one report.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the at least one report includes a first report based at least in part on measuring the first set of reference signals and a second report based at least in part on measuring the second set of reference signals.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the at least one report includes a report with an index relating a first portion of the report to the first set of reference signals and a second portion of the report to the second set of reference signals.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the at least one report includes at least one of a first SINR, a first RSRP, or a combination thereof for the first set of reference signals, and at least one of a second SINR, a second RSRP, or a combination thereof for the second set of reference signals.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, process <NUM> further includes determining (e.g., using one or more of MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, controller/processor <NUM>, and/or memory <NUM>), based at least in part on the at least one report, that the first UE is capable of simultaneously transmitting to the second UE and a third UE; transmitting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>), on a first resource and using the first TRP, a signal to the second UE; and transmitting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>), on a second resource overlapping at least in part with the first resource and using the second TRP, a signal to the third UE, based at least in part on determining that the first UE is capable of simultaneously transmitting to the second UE and the third UE.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, determining that the first UE is capable of simultaneously transmitting to the second UE and the third UE includes determining that at least one of a first SIR associated with the second UE, a second SIR associated with the third UE, or a combination thereof satisfies a condition.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, determining that the first UE is capable of simultaneously transmitting to the second UE and the third UE further includes adding the second UE and the third UE as a set to a list of UEs suitable for simultaneous transmission.

In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, process <NUM> further includes modifying (e.g., using one or more of MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) the condition based at least in part on a number of successful transmissions to one or more sets of UEs on the list of UEs suitable for simultaneous transmission.

In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, process <NUM> further includes modifying (e.g., using one or more of MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) the condition based at least in part on a number of unsuccessful transmissions to one or more sets of UEs on the list of UEs suitable for simultaneous transmission.

In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, process <NUM> further includes adjusting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>) at least one of a transmission power for the first TRP, a transmission power for the second TRP, or a combination thereof, based at least in part on the at least one report; and transmitting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>), based at least in part on the adjusting, a signal to the second UE using both the first TRP and the second TRP.

In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, the first UE is configured for a first MCS, and the adjusting is based at least in part on configuring the first UE for a second MCS.

In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, the adjusting is based at least in part on at least one measurement, included in the at least one report, satisfying at least one condition.

In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, process <NUM> further includes transmitting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>), to the second UE, SCI that includes an indication to the second UE to combine decoded data from the signal transmitted to the second UE using both the first TRP and the second TRP.

In a twenty-first aspect, alone or in combination with one or more of the first through twentieth aspects, process <NUM> further includes determining (e.g., using one or more of MIMO detector <NUM>, receive processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) a resource exclusion for the first TRP and a resource exclusion for the second TRP based at least in part on the adjusting.

In a twenty-second aspect, alone or in combination with one or more of the first through twenty-first aspects, determining the resource exclusion is based at least in part on a first resource map associated with the first TRP and a second resource map associated with the second TRP.

<FIG> is a diagram illustrating an example process <NUM> performed, for example, by a first UE, in accordance with various aspects of the present disclosure. Example process <NUM> is an example where the first UE (e.g., UE 120b) performs operations associated with channel measurements and concurrent messages for UEs with multiple TRPs.

As shown in <FIG>, in some aspects, process <NUM> may include receiving, from a second UE (e.g., multi-TRP UE 120a) on a sidelink channel, a configuration message (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) may receive, from the second UE on the sidelink channel, the configuration message, as described above. In some aspects, the configuration message includes an indication of a first set of reference signals associated with a TRP of the second UE, an indication of a second set of reference signals associated with a second TRP of the second UE, and an indication to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals.

As further shown in <FIG>, in some aspects, process <NUM> may include measuring the first set of reference signals from the second UE on the sidelink channel (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) may measure the first set of reference signals from the second UE on the sidelink channel, as described above.

As further shown in <FIG>, in some aspects, process <NUM> may include measuring the second set of reference signals from the second UE on the sidelink channel (block <NUM>). For example, the first UE (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) may measure the second set of reference signals from the second UE on the sidelink channel, as described above. In some aspects, measurements based at least in part on the second set of reference signals are not combined with measurements based at least in part on the first set of reference signals.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process <NUM> further includes transmitting (e.g., using one or more of antenna <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, modulator <NUM>, controller/processor <NUM>, and/or memory <NUM>), to the second UE and based at least in part on measuring the first set of reference signals and measuring the second set of reference signals, at least one report calculated by the first UE, where results of measuring the first set of reference signals are not combined with results of measuring the second set of reference signals.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, process <NUM> further includes receiving (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>) a signal, from the second UE, transmitted from both the first TRP and the second TRP.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the second UE is configured for a first MCS, and the signal is received using a second MCS.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, process <NUM> further includes receiving (e.g., using one or more of antenna <NUM>, demodulator <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or memory <NUM>), from the second UE, SCI that includes an indication to combine decoded data from the signal transmitted from both the first TRP and the second TRP.

<FIG> is a block diagram of an example apparatus <NUM> for wireless communication. The apparatus <NUM> may be a UE, or a UE may include the apparatus <NUM>. In some aspects, the apparatus <NUM> includes a reception component <NUM> and a transmission component <NUM>, which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus <NUM> may communicate with another apparatus <NUM> (such as a UE, a base station, or another wireless communication device) using the reception component <NUM> and the transmission component <NUM>. As further shown, the apparatus <NUM> may include a multiplexing component <NUM>, among other examples.

In some aspects, the apparatus <NUM> may be configured to perform one or more operations described herein in connection with <FIG>. Additionally, or alternatively, the apparatus <NUM> may be configured to perform one or more processes described herein, such as process <NUM> of <FIG>, or a combination thereof. In some aspects, the apparatus <NUM> and/or one or more components shown in <FIG> may include one or more components of the UE described above in connection with <FIG>. Additionally, or alternatively, one or more components shown in <FIG> may be implemented within one or more components described above in connection with <FIG>. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

In some aspects, the transmission component <NUM> may transmit, to the apparatus <NUM> on a sidelink channel, a configuration message. For example, the configuration message may include an indication of a first set of reference signals associated with a first TRP of the apparatus <NUM>, an indication of a second set of reference signals associated with a second TRP of the apparatus <NUM>, and an indication to the apparatus <NUM> to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals. Accordingly, the multiplexing component <NUM> may determine orthogonal multiplexing schemes for the first set of reference signals and the second set of reference signals that transmission component <NUM> may use to transmit the first set of reference signals and the second set of reference signals. In some aspects, the multiplexing component <NUM> may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with <FIG>. The transmission component <NUM> may transmit, using the first TRP of the apparatus <NUM>, the first set of reference signals to the apparatus <NUM> on the sidelink channel, and transmit, using the second TRP of the apparatus <NUM>, the second set of reference signals to the apparatus <NUM> on the sidelink channel. In some aspects, the reception component <NUM> may receive, from the apparatus <NUM> and based at least in part on transmitting the first set of reference signals and transmitting the second set of reference signals, at least one report calculated by the apparatus <NUM>. Accordingly, the multiplexing component <NUM> may configure the first TRP and the second TRP for simultaneous transmission (e.g., as described above in connection with <FIG> and/or <FIG>).

<FIG> is a block diagram of an example apparatus <NUM> for wireless communication. The apparatus <NUM> may be a UE, or a UE may include the apparatus <NUM>. In some aspects, the apparatus <NUM> includes a reception component <NUM> and a transmission component <NUM>, which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus <NUM> may communicate with another apparatus <NUM> (such as a UE, a base station, or another wireless communication device) using the reception component <NUM> and the transmission component <NUM>. As further shown, the apparatus <NUM> may include a reporting component <NUM>, among other examples.

In some aspects, the reception component <NUM> may receive, from apparatus <NUM> on a sidelink channel, a configuration message. For example, the configuration message may include an indication of a first set of reference signals associated with a first TRP of the apparatus <NUM>, an indication of a second set of reference signals associated with a second TRP of the apparatus <NUM>, and an indication to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals. Accordingly, the reception component <NUM> may measure the first set of reference signals from the apparatus <NUM> on the sidelink channel, and measure the second set of reference signals from the apparatus <NUM> on the sidelink channel. Based at least in part on the configuration message, the apparatus <NUM> does not combine measurements based at least in part on the second set of reference signals with measurements based at least in part on the first set of reference signals. The reporting component <NUM> may generate at least one report based at least in part on measuring the first set of reference signals and measuring the second set of reference signals. In some aspects, the reporting component <NUM> may include a MIMO detector, a receive processor, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with <FIG>. The transmission component <NUM> may transmit, to the apparatus <NUM>, the at least one report.

Claim 1:
A first user equipment, UE, for wireless communication, comprising:
a first transmit-receive point, TRP;
a second TRP;
a memory; and
one or more processors coupled to the memory, the memory and the one or more processors configured to:
transmit, to a second UE on a sidelink channel, a configuration message, wherein the configuration message includes:
an indication of a first set of reference signals associated with the first TRP of the first UE, an indication of a second set of reference signals associated with the second TRP of the first UE, and
an indication to the second UE to refrain from combining measurements based at least in part on the first set of reference signals with measurements based at least in part on the second set of reference signals;
transmit, using the first TRP of the first UE, the first set of reference signals to the second UE on the sidelink channel;
transmit, using the second TRP of the first UE, the second set of reference signals to the second UE on the sidelink channel; wherein the memory and the one or more processors are further configured to:
receive, from the second UE and based at least in part on transmitting the first set of reference signals and transmitting the second set of reference signals, at least one report calculated by the second UE, and wherein measurements based at least in part on the first set of reference signals and included in the at least one report are not combined with measurements based at least in part on the second set of reference signals and included in the at least one report.