Abstract: Methods and apparatus for user equipment (UE)-initiated channel state information (CSI) measurement and reporting. A method performed by a UE includes transmitting an indicator to request transmission of one or more CSI reference signals (RSs), receiving a downlink control information (DCI) format indicating a value of a CSI request field, and identifying a first time window. The method further includes identifying a reception time of the DCI format relative to a last symbol for transmission of the indicator, determining, based on the value, a CSI resource setting and a CSI reporting setting, and measuring, based on the CSI resource setting, the one or more CSI-RSs.

Abstract: Methods and apparatuses for triggering a report. A method for operating a user equipment (UE) includes transmitting information including at least one of (i) a trigger indicating a need for transmitting a report and (ii) content associated with the report. The trigger is related to a channel between the UE and a network entity. The need is based on at least one performance metric of a communication over the channel. The content includes at least one property associated with the channel.

Abstract: Methods and apparatuses for fast beam indication. A method of operating a UE includes receiving a number (M) of transmission configuration indicator (TCI)state code points activated by a medium access control element (MAC CE) and, if the UE is configured to be indicated TCI state code points on DL control information (DCI) and M>1, receiving the DCI that indicates at least one TCI state code point from the M TCI state code points and determining a TCI state to apply to at least one of downlink (DL) channels and uplink (UL) channels. The method further includes updating one or more spatial filters for at least one of the DL channels and the UL channels based on the determined TCI state and at least one of receiving and transmitting the DL channels and the UL channels, respectively, based on the updated one or more spatial filters.

Abstract: Methods and apparatuses for communications in a distributed antenna wireless communication system. A method for operating a user equipment (UE) includes receiving a first configuration for measuring a channel difference between a target cell and a reference cell in a cell group; receiving information for one or more measurement reference signals (RSs) to measure for determining the channel difference; and receiving a second configuration for reporting the channel difference between the target cell and the reference cell in the cell group. The method further includes measuring, based on the information, the measurement RSs; determining, based on the measured measurement RSs, the channel difference between the target cell and the reference cell in the cell group; and transmitting, based on the second configuration, a channel difference report associated with the determined channel difference.

Abstract: Methods and apparatuses for selecting beams. A method includes determining, based on a channel condition, whether to use an adaptive selection method or a cycling selection method to select a subset of a plurality of beams for a beam measurement; based on the channel condition being a first channel condition, using the adaptive selection method to select the subset of beams; and based on the channel condition being a second channel condition, using the cycling selection method to select the subset of beams. The method further includes performing the beam measurement on the selected subset of beams, generating beam measurement information based on the beam measurement on the selected subset of beams, and determining one or more of the plurality of beams to use for a wireless communication based on the beam measurement information.

Abstract: A UE includes a transceiver configured to receive first information related to a group of CSI-RS resources, receive second information related to a group TCI states, receive third information indicating an association between the group of TCI states and the group of CSI-RS resources, receive fourth information indicating resources for transmission of a beam measurement report, receive a MAC CE including a cell switch command, and transmit a HARQ-ACK. The UE further includes a processor configured to determine one or more CSI-RS resources from the group of CSI-RS resources based on the TCI state. The transceiver is further configured to receive the one or more CSI-RS resources. The processor is further configured to determine, based on a measurement of the one or more CSI-RS resources, a beam measurement report. The transceiver is further configured to transmit the beam measurement report using the resources for transmission of a beam measurement report.

Abstract: Methods and apparatuses for beam indication and association for control and data channels. A method by a user equipment (UE) includes receiving a first radio resource control (RRC) configuration related to one or more transmission configuration indication (TCI) states for reception of a physical downlink control channel (PDCCH); receiving a second RRC configuration related to one or more TCI states for reception of a physical downlink shared channel (PDSCH); receiving, in downlink control information (DCI), an indicator related to the one or more TCI states for reception of the PDSCH; and receiving a timing threshold for reception of the PDSCH. The method further includes identifying, based on the first RRC configuration, one or more TCI states to use for reception of the PDCCH and identifying, based on (i) the timing threshold and (ii) the second RRC configuration or the indicator in the DCI, one or more TCI states to use for reception of the PDSCH.

Abstract: A method of operating a user equipment includes receiving a physical random access channel (PRACH) configuration for a serving cell, receiving a PRACH configuration for N additional cells, and receiving a physical downlink control channel (PDCCH) order. The PDCCH order includes a field for a cell ID, and a field for a synchronization signal/physical broadcast channel (SS/PBCH) block index corresponding to the cell ID. The method further includes determining a value of the cell ID field in the PDCCH order, determining a PRACH configuration associated with the cell ID, transmitting a PRACH in a PRACH occasion associated with the SS/PBCH block index and the corresponding cell ID, and, if the value of the cell ID field is non-zero, determining a PRACH transmission power based on a SS/PBCH block associated with the SS/PBCH block index and the corresponding cell ID included in the PDCCH order.

Abstract: Methods and apparatuses for transmission configuration indication (TCI) state indication and association for control and data channels. A method performed by a user equipment (UE) includes receiving first information for first and second groups of configured TCI states; receiving, in a downlink control information (DCI), a first indicated TCI state of a TCI codepoint; and receiving second information for a first control resource set (CORESET).

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 beam measurement and reporting. A method of operating a user equipment includes receiving information indicating associations between a set of transmission configuration (TCI) states and reference signals (RSs) for beam measurement, respectively, receiving a TCI state from the set of TCI states for beam indication, and determining, in response to reception of the TCI state, a RS for beam measurement based on the TCI state and the information. The method further includes transmitting or receiving the RS for beam measurement, and based on the RS being a downlink (DL) RS, measuring the DL RS and determining a measurement report; and transmitting the measurement report.

Abstract: Methods and apparatuses for signaling transmission configuration indication (TCI) states. A method performed by a user equipment (UE) includes receiving, in a first radio resource control (RRC) signaling, a list of TCI states comprising first and second groups of TCI states; receiving, in a medium access control (MAC) control element (CE), one or more sets of transmission configuration indication (TCI) states; and receiving, in a downlink control information (DCI), a TCI codepoint indicating a set of one or more first indicated TCI states or one or more second indicated TCI states. The method further includes identifying, based on the first RRC signaling, the first and second groups of TCI states; identifying, based on the TCI codepoint in the DCI, a set of one or more first and second applicable TCI states; and transmitting or receiving a signal based on an applicable TCI state from the identified set.

Abstract: Methods and apparatuses for multi-beam operation for multi-cell scheduling. A method includes receiving first information for a set of cells, second information for a set of transmission configuration indication (TCI) states associated with each cell in the set of cells, respectively, and a first physical downlink control channel (PDCCH) that provides a first DCI format. The first DCI format schedules receptions of first physical downlink shared channels (PDSCHs) on respective first cells from the set of cells. The first DCI format includes a first TCI field indicating a combination of TCI states that includes a number of TCI states that is equal to a number of cells in the set of cells. The method further includes determining first TCI states from the combination of TCI states and receiving the first PDSCHs, or second PDSCHs after the first PDSCHs, on the first cells based on the first TCI states, respectively.

Abstract: Methods and apparatuses for measurement configurations for reporting in multi-transmit-receive point (TRP) communication systems. A method for operating a user equipment (UE) includes receiving first information for a first set of frequency subbands for FSBM and receiving second information related to a CSI resource setting. The CSI resource setting includes a first CSI resource set and a second CSI resource set. The method further includes identifying, based on the first and second information, a first subset of frequency subbands from the first set of frequency subbands for the first CSI resource set and a second subset of frequency subbands from the first set of frequency subbands for the second CSI resource set. The method further includes determining, based on the identification, one or more first RS resources from the first CSI resource set and one or more second RS resources from the second CSI resource set for FSBR.

Abstract: Methods and apparatuses for fast beam indication. A method of operating a UE includes receiving a number (M) of transmission configuration indicator (TCI)state code points activated by a medium access control element (MAC CE) and, if the UE is configured to be indicated TCI state code points on DL control information (DCI) and M>1, receiving the DCI that indicates at least one TCI state code point from the M TCI state code points and determining a TCI state to apply to at least one of downlink (DL) channels and uplink (UL) channels. The method further includes updating one or more spatial filters for at least one of the DL channels and the UL channels based on the determined TCI state and at least one of receiving and transmitting the DL channels and the UL channels, respectively, based on the updated one or more spatial filters.

Abstract: A method of operating a user equipment (UE) includes receiving first information for a physical cell identifier (PCI) different from a serving cell PCI; receiving second information for source or measurement reference signals (RSs) for the PCI; determining, based on one or more transmission configuration indicator (TCI) states, the first information, and the second information, a reception spatial domain filter for reception of at least one of downlink (DL) RSs and channels from the PCI; and measuring, based on the first information and the second information, the measurement RS. The method further includes determining, based on the measured measurement RSs, the first information, and the second information, a beam report and transmitting the beam report for the PCI on an uplink (UL) channel. A beam refers to a spatial property used to receive or transmit a source RS or a channel.

Abstract: Systems and methods for joint and separate beam indication in a wireless communication system. A method of operating a user equipment (UE) includes receiving configuration information for a first set of transmission configuration indicator (TCI) states for joint TCI states or downlink (DL) TCI states and for a second set of TCI states for uplink (UL) TCI states if configured to operate with separate beam indication; receiving M TCI state code points; and if M>1, receiving downlink control information (DCI) that indicates at least one TCI state code point from the M TCI state code points. The method further includes determining a TCI state to apply to at least one of DL channels and UL channels; updating one or more spatial filters based on the determined TCI state; and at least one of receiving and transmitting the DL channels and the UL channels, respectively, based on the updated spatial filters.

Abstract: Methods and apparatuses for frequency selective beam measurement and reporting (FSBMR) in a wireless communication system. A method for operating a user equipment (UE) includes receiving a configuration for a channel state information (CSI) reference signal (RS) resource and a CSI reporting setting to enable FSBMR. The method further includes receiving first information indicating a first set of frequency subbands for the CSI-RS resource and receive second information indicating a second set of frequency subbands for the CSI reporting setting. The method further includes measuring, based on the configuration and the first information, the CSI-RS resource and determining, based on the configuration, the measurement, and the second information, a beam report including one or more beam metrics.

Abstract: Methods and apparatus for configuring measurement and reporting settings in a wireless communication system. A method performed by a user equipment (UE) includes receiving first information for a channel state information (CSI) reporting setting to enable group based frequency selective beam reporting and receiving second information indicating a set of frequency subbands for the CSI reporting setting. The method further includes determining, based on the first and second information, one or more groups of resource indicators and transmitting, in a first beam report, the one or more groups of resource indicators. Each group of the one or more groups of resource indicators respectively corresponds to at least one frequency subband from the set of frequency subbands. A resource indicator from the one or more groups of resource indicators is a synchronization signal block resource indicator (SSBRI) or a CSI reference signal resource indicator (CRI).

Abstract: Method and apparatuses for supporting or utilizing transmission configuration indication signaling. A method for operating a user equipment (UE) includes receiving a configuration enabling frequency selective beam indication (FSBI) and receiving, in a transmission configuration indication (TCI) state, a plurality of quasi co-location (QCL) parameters corresponding to a plurality of frequency subbands. The method further includes determining, based on the plurality of frequency subbands and the plurality of QCL parameters, one or more reception or transmission filters for receiving or transmitting, respectively, channels in the plurality of frequency subbands.