Abstract: Methods and apparatuses for timing adjustment in a system comprising multiple transmission and reception points (TRPs). A method for operating a user equipment (UE) includes receiving first information for one or more first measurement reference signals (RSs) from a first cell to measure for determining a downlink (DL) timing difference, receiving second information for one or more second measurement RSs from a second cell to measure for determining the DL timing difference, and receiving a configuration for reporting the DL timing difference between the first and second cells. The method further includes measuring, based on the first and second information, the first and second measurement RSs, respectively; determining, based on the first and second measured measurement RSs, a timing difference report for the first and second cells; and transmitting, based on the configuration, the timing difference report to one or more of the first and second cells.

Abstract: A method for operating a user equipment (UE) comprises receiving information about a downlink (DL) transmission transmitted from NRRH>1 RRHs, wherein: NRRH=number of remote radio heads (RRHs), RRH r comprises a group of antenna ports, and r=1, . . . , NRRH; receiving the DL transmission; and decoding the information about the DL transmission; wherein the DL transmission is based on a scheme that is a combination of a precoding scheme and a diversity scheme, wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.

Abstract: Methods and apparatuses for transmission configuration indication (TCI) state indications and updates. A method performed by a user equipment includes applying a TCI state for UE dedicated control and data channels and receiving, via a medium access control (MAC) control element (CE), a plurality of TCI codepoints. The method further includes identifying a reference TCI codepoint from the plurality of TCI codepoints; determining, from the reference TCI codepoint, one or more TCI states; and determining whether to apply the one or more TCI states or the reference TCI state for the UE dedicated control and data channels.

Abstract: Apparatuses and methods for uplink timing adjustment in a wireless communication system. A method for operating a user equipment (UE) includes receiving a first uplink (UL) timing advance (TA) command for a first link associated with a first physical cell identity (PCI); receiving a second UL TA command for a second link associated with a second PCI; and determining, based on the first and second UL TA commands, first and second UL timing adjustments for the first and second links associated with the first and second PCIs, respectively. The method further includes transmitting a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), or a sounding reference signal (SRS) associated with the first PCI according to the first UL timing adjustment; and transmitting a PUCCH, a PUSCH, or a SRS associated with the second PCI according to the second UL timing adjustment. The second PCI is different from a serving cell PCI.

Abstract: Methods and apparatuses for determining transmission configuration indication (TCI) states for channel state information reference signals (CSI-RSs). A method performed by a user equipment (UE) includes receiving, first information about receiving an aperiodic CSI-RS when a triggering offset is less than a threshold; receiving, second information including an indicator to indicate whether to apply a first TCI state or a second TCI state for the aperiodic CSI-RS; and receiving the aperiodic CSI-RS. The method further includes identifying whether another downlink (DL) signal is present in a same symbol as the aperiodic CSI-RS and determining, based on the identification, the first information, or the indicator, to apply the first or second TCI state for the aperiodic CSI-RS.

Abstract: Methods and apparatuses for beam failure recovery in sidelink (SL). A method of operating a user equipment (UE) includes receiving, from a second UE a first instance of a first SL channel and M SL signals for identification of new beams, where M>1 and measuring a metric based on the first SL channel. The method further includes declaring, based on the metric, a beam failure; identifying, based on the declaration of the beam failure, a SL signal from the M SL signals for identification of a new beam; and transmitting a second SL channel with a first beam indication based on the SL signal.

Abstract: Methods and apparatuses for a MAC CE for multi-TRP operation in a wireless communication system. A method of a UE comprises: receiving, from a BS belonging to a serving cell, a first MAC PDU including a first MAC subheader with a first eLCID and a first MAC CE; identifying, based on the first eLCID, an enhanced unified TCI states activation/deactivation MAC CE for joint TCI states or separate TCI states including a bitmap of TCI state ID presence indications and TCI state IDs, wherein a bit in the bitmap of TCI state ID presence indications indicates, for the TCI state IDs associated with a codepoint of a DCI TCI field, whether a TCI state for a TRP is present in a corresponding MAC CE, and a maximum number of the TCI state IDs that are activated is 32; and indicating, to lower layers, information associated with the corresponding MAC CE.

Abstract: Methods and apparatuses for sidelink (SL) beam indication. A method of operating a user equipment (UE) includes transmitting, to a second UE, a first set of reference signals or receiving, from the second UE, a second set of reference signal. The method further includes identifying a beam indication for transmission to or reception from the second UE; determining, based on the beam indication, a spatial transmission filter or a spatial reception filter; and determining a time T to apply the beam indication. The beam indication is associated with a reference signal from the first set of reference signals or the second set of reference signals. The method further includes transmitting, to the second UE, a first SL channel using the spatial transmission filter starting from the time T or receiving, from the second UE, a second SL channel using the spatial reception filter starting from the time T.

Abstract: Methods and apparatuses for predictive beam management in a wireless communication system. A method of operating a user equipment (UE) includes receiving configuration information for transmission configuration indication (TCI) states; receiving information indicating a number of TCI states and a number of corresponding TCI state application times; and determining, for one or more TCI states in the number of TCI states, at least one of downlink (DL) quasi-co-location (QCL) properties for DL communication and an uplink (UL) spatial domain filter for UL communication. The method further includes at least one of receiving, using the determined DL QCL properties, DL channels starting at the corresponding TCI state application times and transmitting, using the determined UL spatial filter, UL channels starting at the corresponding TCI state application times.

Abstract: Methods and apparatuses for physical downlink shared channel (PDSCH) reception with transmission and reception point (TRP) switching. A method performed by a user equipment (UE) includes receiving a threshold to indicate a transmission configuration indication (TCI) state selection time and receiving downlink control information (DCI) that schedules a first PDSCH with a scheduling offset less than or equal to the threshold. The method further includes identifying a value of a frequency range index and determining, based on the value of the frequency range index and a capability, to receive the first PDSCH with a first TCI state or a second TCI state. The first and second TCI states are joint or downlink (DL) TCI states.

Abstract: Methods and apparatuses for channel state information (CSI) resource configuration in a wireless communication system. A method for operating a user equipment includes receiving a first and second configurations for a first and second sets of reference signal (RS) resources, respectively, configured in a CSI resource setting, receiving a first set of RSs through the first set of RS resources, and receiving a second set of RSs through the second set of RS resources. The method further includes measuring at least one RS in the first or second sets of RSs, determining, based on the measured at least one RS, one or more resource indicators or one or more beam metrics, determining, based on the first or second configurations, a first CSI report or a second CSI report; and transmitting, in the first or second CSI reports, the one or more resource indicators or the one or more beam metrics.

Abstract: Methods and apparatuses for beam failure declaration, new beam identification, and recovery in multi transmission and reception point (TRP) operation. A method performed by a user equipment (UE) includes transmitting a physical uplink shared channel (PUSCH) including a first reference signal (RS) index for a first beam failure recovery request associated with a first beam failure detection (BFD) RS set; receiving a response to the first beam failure recovery request; receiving first information for reception of a physical downlink control channel (PDCCH); and receiving second information for reception of a physical downlink shared channel (PDSCH).

Abstract: A user equipment (UE) includes a transceiver. The transceiver is configured to receive information about transmission of UE initiated reports in a first uplink (UL). The UE further includes a processer operably coupled to the transceiver. The processor is configured to determine a two-part UL report. The transceiver is further configured to transmit, based on the information, the first UL including a first part of the two-part UL report, and receive a first acknowledgment within a time, T from the transmission of the first UL.

Abstract: A method for operating a user equipment (UE) comprises receiving information about a downlink (DL) transmission transmitted from NRRH>1 RRHs, wherein: NRRH=number of remote radio heads (RRHs), RRH r comprises a group of antenna ports, and r=1, . . . , NRRH; receiving the DL transmission; and decoding the information about the DL transmission; wherein the DL transmission is based on a scheme that is a combination of a precoding scheme and a diversity scheme, wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.

Abstract: Methods and apparatus for a user equipment (UE)-initiated beam operation. A method performed by a UE includes receiving a configuration related to (i) a time window and (ii) a transmission configuration indication (TCI) state operation mode; receiving one or more first TCI states; and determining, based on the configuration and the one or more first TCI states, one or more second TCI states, from the one or more first TCI states, to apply for a channel. The method further includes transmitting an indicator indicating the one or more second TCI states and the channel; receiving an acknowledgement for the indicator; and identifying a reception time of the acknowledgement.

Abstract: Methods and apparatuses for methods and apparatuses for facilitating signaling of multiple timing advance (TA) values to a user equipment (UE), facilitating the use of multiple TA values by a UE for communication with multiple transmission and reception points (TRPs), and facilitating updating of TA values in a wireless communications network. A UE comprises a transceiver and a processor operably coupled to the transceiver. The transceiver is configured to receive a first TA command that includes a first TA value and a first TA group (TAG) identifier (ID) associated with a first entity, and a second TA value and a second TAG ID associated with a second entity. The processor is configured to identify a TAG ID associated with an uplink (UL) transmission, and identify, based on the TAG ID, a TA value. The transceiver is further configured to transmit the UL transmission using the TA value.

Abstract: Apparatuses and methods for UE-initiated reporting. A method performed by a user equipment (UE) includes receiving information about (i) L events and (ii) K event types, where L?1 and K?1. At least one of the L events is associated with at least one of the K event types. The method further includes determining whether to transmit a report based on at least one of L? events from the L events and transmitting, based on the determination, the report that includes an indicator indicating the L? events.

Abstract: Methods and apparatuses for beam failure recovery (BFR) in a wireless communication system. A method for operating a user equipment includes identifying configuration information for at least two beam failure detection (BFD) reference signal (RS) sets each comprising one or more BFD RSs resources and configuration information for at least two new beam identification (NBI) RS sets each comprising one or more NBI RS resources. The method further includes detecting a beam failure event for one of the at least two BFD RS sets; identifying, based on measuring the one or more NBI RS resources in a NBI RS set that is associated with the one BFD RS set, one or more NBI RS resources for a new beam recovery; and triggering, in response to detection of the beam failure event for the one BFD RS set and identification of the one or more NBI RS resources, a BFR event.

Abstract: Methods and apparatuses for resource and reporting settings. A method performed by a user equipment (UE) includes receiving first information to enable transmission of an indicator indicating transmission of a beam report and transmitting, based on the first information, the indicator. The method further includes receiving second information related to one or more channel state information reference signal (CSI-RS) resources for the beam report; measuring, based on the second information, the one or more CSI-RS resources for the beam report; and transmitting the beam report.

Abstract: Methods and apparatuses for user equipment (UE) initiated reporting in a wireless communication system. A method of operating a UE includes receiving first information related to resources for a physical uplink shared channel (PUSCH); receiving second information related to (i) beam measurement resources and (ii) a beam report configuration; and receiving third information related to a condition to transmit a beam report; measuring the beam measurement resources. The method further comprises determining, based on the measurement and the condition, whether to transmit the beam report; in response to determining to transmit the beam report, determining the beam report based on the measurement; and transmitting, via a resource from the resources for the PUSCH, the beam report. The resource for the PUSCH is a Type 1 configured grant PUSCH resource.