Abstract: Apparatuses and method for partial coherent codebook design. A method performed by a user equipment (UE) includes receiving a configuration about an uplink (UL) codebook for eight antenna ports partitioned into Ng=4 groups, each group comprising two antenna ports; receiving a transmit precoding matrix indicator (TPMI) indicating a precoding matrix (W) from the UL codebook; and transmitting a physical uplink shared channel (PUSCH) using the precoding matrix (W). W is based on up to K matrices [M(1) . . . . M(K)], where a matrix M(l) is obtained by associating a submatrix S to a group Gj=(gj,1, gj,2) as M(l)=[egj,1 egj,2]S. (gj,1, gj,2) are two ports of the group Gj, K?{1, . . . , 4}, j?{1, . . . ,4 }. ek denotes an 8×1 column vector whose k-th entry is 1 and remaining entries are 0.

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 for operating a user equipment (UE) comprises receiving configuration information including information on a set of transmission configuration indicator (TCI) states and information on reception of a beam indication; receiving the beam indication based on the configuration information; and determining whether the beam indication is used for (A) or (B), wherein: (A) corresponds to triggering a beam measurement and a beam report, and (B) corresponds to indicating at least one TCI state for downlink (DL) reception or uplink (UL) transmission.

Abstract: Apparatuses and methods for channel state information (CSI) codebook for multiple antenna groups. a method performed by a user equipment (UE) is provided. The method includes receiving information about a CSI report; determining the CSI report associated with Ng CSI reference signal (CSI-RS) resources; and transmitting the CSI report. The information indicates the Ng CSI-RS resources, where each of the Ng CSI-RS resources comprises 2N1N2 dual-polarized antenna ports. N1 and N2 are numbers of antenna ports associated with a same polarization in first and second dimensions, respectively. The CSI report includes: information of a spatial-domain (SD) basis vector vl that is common for two polarizations for the Ng CSI-RS resources for each layer, information of an inter-resource co-phase value cr,l for a CSI-RS resource ?r?r* with respect to a reference CSI-RS resource r* for each layer, and information of an inter-polarization co-phase value ?r for a CSI-RS resource r.

Abstract: A user equipment (UE) for channel state information (CSI) comprises receiving configuration information for K CSI reports, wherein the configuration information includes resource allocation information for an uplink control information (UCI) transmission that includes UCI comprising N UCI parts, calculating the K CSI reports and partitioning the K CSI reports into N parts, determining an available number of information bits (B1) for the UCI transmission according to the resource allocation information, determining a required number of information bits (B2) for the UCI transmission according to the calculated K CSI reports, determining whether the B2 exceeds the B1; and transmitting, to the BS over one slot of an uplink channel, a first part of the N UCI parts including a first of the N parts of the K CSI reports when the B2 exceeds the B1, wherein K and N are positive integers.

Abstract: Apparatuses and methods for enabling full power uplink (UL) transmission. A method performed by a user equipment (UE) includes transmitting UE capability information including (i) information for a codebook-based UL transmission using eight antenna ports and (ii) information indicating whether the UE supports a UL full power transmission mode of fullpowerMode1 or fullpowerMode2; receiving a physical uplink shared channel (PUSCH) configuration; and receiving a transmit precoding matrix indicator (TPMI). The PUSCH configuration includes parameters indicating a codebook for the TPMI and ul-FullPowerTransmission8Tx. The method further includes determining a PUSCH transmission based on the PUSCH configuration, determining a power level for the PUSCH transmission based on the PUSCH configuration, and transmitting the PUSCH transmission with the determined power level. The power level corresponds to full power if the TPMI is a full power TPMI.

Abstract: Apparatuses and methods for non-coherent uplink (UL) operations. A method performed by a user equipment (UE) includes receiving a configuration including a value Ng=8 indicating an uplink (UL) codebook for eight antenna ports; receiving a transmit precoding matrix indicator (TPMI) index indicating a precoding matrix from the UL codebook; and transmitting a physical uplink shared channel (PUSCH) using the precoding matrix. The precoding matrix is given by W = 1 2 ? 2 [ e x 1 , … , e x v ] , where v is a number of layers of the precoding matrix, xi is a port index associated with layer i, ei is a column vector with a value 1 at row corresponding to port xi and value 0 at other rows, xi?{0, . . . ,7}, i?{1, . . . , v}, v?{1, . . . ,8}. The TPMI index maps to ports (x1, . . . xv) associated with v layers via an index I.

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: 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: Apparatuses and method for channel state information (CSI) processing for multiple transmission and reception points (multi-TRP) coherent joint transmission. A method performed by a user equipment (UE) includes receiving a configuration about a CSI report, based on the configuration, processing and determining the CSI report, and transmitting the CSI report. The configuration includes information about: (i) a parameter codebookType set to ‘typeII-CJT-r18’, ‘typeII-CJT-PortSelection-r18’, ‘typeII-Doppler-r18’, or ‘typeII-Doppler-PortSelection-r18’, or (ii) a parameter reportQuantity set to ‘tdcp’. Processing of the CSI report occupies OCPU CSI processing units (CPUs) for a number of orthogonal frequency division multiplexing (OFDM) symbols.

Abstract: A method for a channel state information (CSI) feedback comprises receiving CSI feedback configuration information for the CSI feedback including a spatial channel information indicator based on a linear combination (LC) codebook, wherein the spatial channel information comprises at least one of a downlink channel matrix, a covariance matrix of the downlink channel matrix, or at least one eigenvector of the covariance matrix of the downlink channel matrix; deriving the spatial channel information indicator using the LC codebook that indicates a weighted linear combination of a plurality of basis vectors or a plurality of basis matrices as a representation of at least one of a downlink channel matrix, a covariance matrix of the downlink channel matrix, or at least one eigenvector of the covariance matrix of the downlink channel matrix; and transmitting over an uplink channel, the CSI feedback including the spatial channel information indicator.

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: A method for operating a user equipment (UE) comprises receiving configuration information about a channel state information (CSI) report associated with NRRH>1 remote radio heads (RRHs), wherein: NRRH=a number of RRHs, each RRH r=1, . . . , NRRH comprises a group of CSI reference signal (CSI-RS) ports, and the configuration information includes, for each RRH r=1, . . . , NRRH, information about at least one CSI-RS resource; and for each RRH r=1, . . . , NRRH: measuring the at least one CSI-RS resource, and determining, based on the measured at least one CSI-RS resource, whether a CSI-RS resource for RRH r is a channel measurement resource (CMR) or an interference measurement resource (IMR); generating the CSI report based on whether each CSI-RS resource among the measured at least one CSI-RS resource for each RRH is determined as a CMR or an IMR; and transmitting the 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: Channel state information (CSI) feedback in a wireless communication system is disclosed. A precoding matrix is generated for multi-antenna transmission based on precoding matrix indicator (PMI) feedback, wherein the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first codebook and a second codebook. In one embodiment, the first codebook comprises at least a first precoding matrix constructed with a first group of adjacent Discrete-Fourier-Transform (DFT) vectors. In another embodiment, the first codebook comprises at least a second precoding matrix constructed with a second group of uniformly distributed non-adjacent DFT vectors.

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 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 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=1KNi=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: Apparatuses and methods for uplink (UL) codebook design are provided. A method performed by a user equipment (UE) is provided. The method includes receiving a configuration about an uplink (UL) codebook (C8) for N=8 antenna ports partitioned into Ng groups; receiving an indication indicating a transmit precoding matrix indicator (TPMI) for transmission of a physical uplink shared channel (PUSCH); and transmitting the PUSCH based on the indicated TPMI. The TPMI indicates a precoding matrix (W) from the UL codebook (C8) and the precoding matrix (W) is based on up to K submatrices. Each of the K submatrices is a full-coherent (FC) precoding matrix for P = N N g antenna ports and is associated with one of the Ng groups, K?{1, . . . , Ng} and Ng?{2, 4}.

Abstract: A method for operating a user equipment (UE) comprises receiving configuration information about a channel state information (CSI) report, the configuration information including codebook parameters (M, ?, ?), wherein: M is a number of frequency domain basis vectors, ? is a number ?1, and ? is a number ?1; identifying values of M, ?, and ?; determining a value of K1 based on ?, where K1 is a number of selected CSI reference signal (CSI-RS) ports from a total of P CSI-RS ports; determining a maximum number of non-zero coefficients based on ?; determining the CSI report based on the values of M, K1, and the maximum number of non-zero coefficients; and transmitting the CSI report.