Abstract: Apparatuses and methods for compression-based channel state information (CSI) reporting are provided. A method includes receiving a configuration about a CSI report, the configuration including information about Ng>1 groups of CSI reference signal (CSI-RS) ports and a codebook. The codebook includes a first component that includes P?2 sets of basis vectors including a first set for spatial domain (SD) and a second set for frequency domain (FD) and a second component that includes coefficients associated with each basis vector combination (v1, v2, . . . , vP), where vk belongs to a k-th set of basis vectors. The method further includes, based on the configuration, measuring the Ng groups of CSI-RS ports and determining the first component and the second component and transmitting the CSI report including one or multiple basis vector indicators indicating all or a portion of the first component and one or multiple coefficient indicators indicating all or a portion of the second component.

Abstract: A method of a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from at least one transmission and reception point (TRP) of a group of (N) TRPs, channel status information (CSI) configuration information, determining a CSI report based on the CSI configuration information, identifying, based on the configuration information, one or more TRPs of the group of (N) TRPs to transmit the determined CSI report, and transmitting, to the one or more TRPs, the determined CSI report over an uplink channel. The determined CSI report includes a TRP indicator for selecting (M) TRPs of the group of (N) TRPs, and CSI for each of the selected (M) TRPs, wherein N is greater than one, and wherein M is greater or equal to 1, and less or equal to N.

Abstract: A method of a user equipment (UE) for an uplink power control is provided. The method comprises transmitting, to a base station (BS), UE capability information including a full power transmission capability of the UE, receiving, from the BS, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI), determining a power level for each antenna port at the UE based on the full power transmission capability of the UE and the TPMI, and transmitting, to the BS, UL data via physical uplink shared channel (PUSCH) based on the determined power level for each antenna port at the UE and the TPMI wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH.

Abstract: A method for operating a user equipment (UE) comprises receiving configuration information for a CSI report. The configuration information includes information to: configure a codebook and parameters for the codebook, the codebook comprising a precoding matrix indicator (PMI) indicating a set of components S to represent N3 precoding matrices, where N3?1; and partition the PMI into two subsets, a first PMI subset indicating a first subset of components S1 from the set of components S, and a second PMI subset indicating a second subset of components S2 from the set of components S different from the first subset of components S1. The method further comprises determining the CSI report based on the configuration information, the CSI report including the second PMI subset indicating the second subset of components S2, and transmitting the determined CSI report over an uplink (UL) channel.

Abstract: A method for operating a user equipment (UE) comprises receiving information about a channel state information (CSI) report, the information including information about a parameter ?, wherein the parameter ? is a rational number?1; determining a value of K1 based on the parameter ?; selecting K1 CSI reference signal (CSI-RS) ports from a total of P CSI-RS ports; determining the CSI report including an indicator indicating the selected K1 CSI-RS ports; and transmitting the CSI report including the indicator indicating the selected K1 CSI-RS ports.

Abstract: A method for operating a UE for CSI reporting comprises receiving configuration information for a CSI report, where the configuration information configures a PMI codebook and partitions the PMI codebook into first and second PMI subsets respectively indicating first and second subsets of a set of components S to represent N3 precoding matrices; determining, based on the configuration information, the CSI report comprising first and second CSI parts, the second CSI part including the second PMI subset and partitioned into N groups; selecting M groups from the N groups of the second CSI part based on a resource allocation for transmission of UCI, where M?{1, . . . , N}; and transmitting, over an UL channel, the UCI including a first UCI part and a second UCI part, the first UCI part including the first CSI part and the second UCI part including the M groups from the N groups of the second CSI part.

Abstract: A method for operating a user equipment (UE) comprises receiving configuration information on a set of transmission configuration indicator (TCI) states; receiving a beam indication indicating at least one TCI state from the set of TCI states, wherein the at least one TCI state indicates a group of M beams partitioned into K sets of beams for K entities (E1, E2, . . . EK), where an i-th set of beams is associated with entity Ei and comprises Ni beams, and ?i=1K Ni=M; decoding the beam indication; determining a beam for entity Ei based on the i-th set of beams; and transmitting an uplink (UL) transmission or receiving a downlink (DL) transmission based on the determined beam for entity Ei, wherein i is an entity index and takes a value from {1, . . . , K}.

Abstract: Methods and apparatuses for measurement information reporting. A method of a user equipment (UE) includes method receiving a configuration for a set of resources comprising non-zero-power channel state information reference signal (NZP CSI-RS) resources or synchronization signal and physical broadcast channel (SS/PBCH) block resources and receiving NZP CSI-RS in the NZP CSI-RS resources or SS/PBCH blocks in the SS/PBCH block resources from the set of resources. The method includes measuring signal-to-interference and noise ratio (SINR) values based on the NZP CSI-RS or the SS/PBCH blocks; and transmitting, for a subset of resources from the set of resources, a largest of the SINR values, differential SINR values relative to the largest SINR value, and NZP CSI-RS resource indexes (CRIs) or SS/PBCH block indexes for at least some of the NZP CSI-RS resources or the SS/PBCH blocks resources from the subset of resources.

Abstract: A method of a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from at least one base station (BS) of a group of (N) BSs, channel state information (CSI) configuration information including a number of uplink control information (UCI) parts for a CSI reporting; identifying the number of UCI parts for the CSI reporting; determining a CSI report based on the identified number of UCI parts; identifying one or more BSs in the group of (N) BSs to transmit the determined CSI report; and transmitting, to the one or more identified BSs, via an uplink channel, a UCI including the determined CSI report, wherein the UCI includes the identified number of UCI parts each of which includes a part of the determined CSI report.

Abstract: A method for operating a user equipment (UE) for channel state information (CSI) feedback in a wireless communication system is provided. The method comprises receiving, from a base station (BS), CSI reference signals (CSI-RSs) and CSI feedback configuration information, estimating a channel based on the received CSI-RSs, determining, based on the estimated channel and the CSI feedback configuration information, a number of non-zero coefficients (KlNZ) for each layer (l) of a total number of ? layers, wherein ??1 is a rank value, and a sum of the KlNZ across each of the ? layers as a total number of non-zero coefficients (KNZ), where KNZ=?l=1?KlNZ. The method further comprises transmitting, to the BS, the CSI feedback including the KNZ value over an uplink (UL) channel.

Abstract: Methods and apparatuses for beam indication channel in a multi-beam system. A method of operating a user equipment includes receiving configuration information for one or more transmission configuration indication (TCI) states, associated TCI state identifiers (IDs), and a channel conveying one or more TCI state IDs and receiving the channel conveying the one or more TCI state IDs. The method also includes determining, based on the one or more TCI state IDs, one or more spatial domain filters for at least one of reception of downlink channels and transmission of uplink channels and determining a time for applying the one or more spatial domain filters. Additionally, the method includes at least one of: receiving, starting at the determined time, the downlink channels using the one or more spatial domain filters; and transmitting, starting at the determined time, the uplink channels using the one or more spatial domain filters.

Abstract: An apparatus for beam management includes a transceiver configured to receive configuration information for one or more transmission configuration indicator (TCI) states and corresponding channels, receive one or more TCI state identifiers (IDs) on a channel for conveying TCI state IDs from among the corresponding channels, and transmit an acknowledgement message in response to the reception of the one or more TCI state IDs. The apparatus further includes a processor configured to determine, based on the one or more TCI state IDs, TCI states for data and control channels, respectively, from among the corresponding channels, and update spatial filters for the data and control channels based on the determined TCI states for the data channels and the control channels, respectively. The transceiver is further configured to receive the data channels and the control channels based on the updated spatial filters for the data and the control channels, respectively.

Abstract: An apparatus for dynamic beam adaptation includes a transceiver configured to receive configuration information for a set of candidate beams for communication with another device and receive a beam indication for a current beam from the set of candidate beams to be used for communication with the other device. The apparatus further includes a processor configured to measure a beam metric for each beam within the set of candidate beams, determine that the current beam is not suitable for the communication with the other device, based on the measured beam metrics, and determine another beam from the set of candidate beams for communication with the other device, based on the measured beam metrics. The transceiver is further configured to transmit an information on an uplink (UL) channel to the other device using the other beam.

Abstract: A method of a user equipment (UE) in a wireless communication system is provided, the method comprises receiving, from a base station (BS), configuration information including a number of total beam quantities (N) and a number of selected beam quantities (L), wherein L?N; calculating an index indicating L selected beam quantities out of N total beam quantities based on the configuration information and a predefined mapping table including combinatorial binomial coefficient values, C ? ( x , y ) = ( x y ) (i.e., x choose y); and transmitting, to the BS, the index indicating the L selected beam quantities.

Abstract: A method for operating a user equipment comprises receiving configuration information including information on a beam indication indicating N uplink (UL) transmit beams, where N>1; receiving the beam indication; determining whether an event is detected; selecting a beam from the N UL transmit beams based on whether the event is detected or not; and transmitting an UL transmission using the selected beam, wherein the beam refers to a spatial property used to receive or transmit a source reference signal (RS).

Abstract: Methods and apparatuses for codebook based UL transmission are provided. A method for operating a UE comprises transmitting a UE capability information about a UL codebook for 8 antenna ports; receiving an indication indicating a TPMI for a transmission of a PUSCH; and transmitting the PUSCH based on the indicated TPMI, wherein the TPMI indicates a precoding matrix from the UL codebook for the 8 antenna ports, the UL codebook includes full-coherent (FC) precoding matrices comprising all non-zero entries, and an l-th column of a FC precoding matrix is associated with an l-th layer of the PUSCH transmission.

Abstract: A method for operating a user equipment (UE) comprises transmitting UE capability information including a full power transmission capability, wherein the full power transmission capability includes information (I) to indicate multiple transmit precoding matrix indicator (TPMI) groups that deliver full power; receiving configuration information for a physical uplink shared channel (PUSCH) transmission; receiving a TPMI indicating a precoding matrix and a number of layers for the PUSCH transmission; determining the PUSCH transmission based on the configuration information; determining a power level for the PUSCH transmission, wherein the power level corresponds to full power if the TPMI is included in one of the multiple TPMI groups that deliver full power; and transmitting the PUSCH transmission with the determined power level.

Abstract: A user equipment (UE) for channel state information (CSI) feedback comprises a transceiver configured to receive, from a base station (BS), configuration information for the CSI feedback, the configuration information indicating a number of antenna panels (Ng) at the BS and a codebook mode, wherein Ng>1 and each of the antenna panels comprises antenna ports with a first polarization (P1) and antenna ports with a second polarization (P2). The UE further comprises a processor operably connected to the transceiver, the processor configured to identify the number of antenna panels (Ng) at the BS, identify a codebook for the CSI feedback based on the codebook mode configured between a first codebook mode and a second codebook mode, and generate the CSI feedback using the identified codebook. The transceiver is further configured to transmit the generated CSI feedback to the BS.

Abstract: Methods and apparatuses for interference management in a wireless communication system. A method for operating a user equipment (UE) includes receiving configuration information about I. I is interference information for interfering Nint remote radio heads (RRHs), where Nint?N?1. The configuration information indicates a number of RRHs, N>1. The method further includes determining, based on the interference information I, a downlink (DL) spatial filter using P antenna ports, where P>1, and receiving DL data using the determined DL spatial filter.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods for managing CSI feedback compression in wireless network by base station. The method includes transmitting at least one pilot symbol over first window. The method includes receiving at least one of a first and second type feedback from a UE at an end of the first window or after the first window. The method includes receiving the compressed CSI feedback based on predefined precoder weights in the first window. The method includes computing and predicting at least one precoder weight for the UE in at least one time instant in a second window for at least one sub-band of the UE based on the at least one of the first and second type feedback. The method includes managing the received CSI feedback compression based on the predicted precoder weight.