Abstract: A method of a base station (BS) for transmitting synchronization signals in a wireless communication system. The method comprises generating a primary synchronization signal (PSS) including one of multiple PSS sequences that is generated based on a M-sequence of length 127 in a frequency domain, wherein the PSS indicates part of cell identification (ID) information using a cyclic shift performed on the M-sequence generating the PSS; generating a secondary synchronization signal (SSS) including one of multiple SSS sequences that is generated based on multiple BPSK modulated M-sequences of length 127 in the frequency domain, wherein the SSS indicates the cell ID information using cyclic shifts performed on the M-sequences generating the SSS; and transmitting, to a user equipment (UE), the PSS and SSS over downlink channels.

Abstract: A user equipment (UE) for random access operation in a wireless communication system. The UE comprises at least one transceiver configured to receive, from a base station (BS), RACH configuration information including an RACH structure corresponding to a first beam identification (ID), beam sweeping operation and mapping between downlink signals and RACH chunks and/or RACH preamble subsets. The UE comprises at least one processor configured to determine an RACH preamble based on the RACH structure configuration received from the BS. The UE comprises the transceiver further configured to transmit, to the BS, the RACH preamble over a first beam associated with the first beam ID and receive, from the BS, an RACH response corresponding to the RACH preamble over a second beam, wherein the first beam is different than the second beam.

Abstract: A base station for generating multi-user precoders. The base station includes a transceiver configured to receive sounding reference signals (SRSs) from a set of user equipments (UEs), and a processor configured to select, for one or more UEs in the set of UEs, one or more codewords from an uplink codebook based on a correlation between the one or more codewords and the one or more SRSs; determine, using a composite downlink codebook, downlink codewords for the selected uplink codewords, respectively, the composite downlink codebook mapping uplink codewords to downlink codewords based on steering angles derived from the uplink codewords; transmit a set of pre-coded channel state information reference signals (CSI-RSs) to the one or more UEs, wherein the pre-coded CSI-RSs are pre-coded based on the determined downlink codewords; and identify a downlink channel matrix based on CSI feedback from the one or more UEs and the pre-coded CSI-RSs.

Abstract: A method of generating and applying combining weights to Physical Uplink Shared Channel (PUSCH) symbols for Open Radio Access Network (O-RAN) fronthaul interface between O-RAN radio unit (O-RU) and O-RAN distributed unit (O-DU) includes: calculating, by the O-DU, a codebook; sending, by the O-DU, the codebook to O-RU; generating, by the O-RU, an RU combiner matrix, using the codebook; applying, by the O-RU, the RU combiner matrix to In-phase and Quadrature (IQ) data to generate compressed IQ data; sending, by the O-RU, the compressed IQ data to O-DU; calculating, by the O-DU, a DU combiner matrix from compressed demodulation reference signal (DMRS); and applying, by the O-DU, the DU combiner matrix to data.

Abstract: A user equipment (UE) for receiving control information in a wireless communication system includes a transceiver configured to receive a synchronization signal/physical broadcasting channel (SS/PBCH) block of an index i from a BS, wherein SS/PBCH block comprises a PBCH carrying master information block (MIB). The UE includes a processor configured to for the SS/PBCH block of the index i, determine a slot index n0 as a sum of an offset value and [i*M]. The offset value is determined based on a first value O determined according to the index indicated in the MIB, wherein the index configures PDCCH monitoring occasions, and a second value ? indicated in the MIB, wherein the second value ? represents a subcarrier spacing configuration, wherein M is a positive number determined according to the index indicated in the MIB, and cause the transceiver to decode a PDCCH in the slot index n0.

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a data rate higher than that of the 4G system. A method by a terminal in a wireless communication system according to the present disclosure includes receiving a first message comprising first information indicating a number of symbols in an uplink pilot time slot (UpPTS) region, identifying at least one symbol for transmitting a sounding reference signal (SRS) based on the first information, and transmitting the SRS.

Abstract: There is provided a method of operating an Open Radio Access Network (O-RAN) having an O-RAN radio unit (O-RU) and an O-RU controller. The method includes sending, from the O-RU to the O-RU controller, (i) a message informing that the O-RU supports a feature such as (a) a plurality of delay management profiles, and/or (b) a plurality of transmission window sizes, and (ii) a report of capabilities of the O-RU, where the report includes a parameter such as (a) a quantity of supported delay management profiles, (b) supported window sizes for each of the plurality of delay management profiles, and/or (c) a supported window offset for each of the plurality of delay management profiles. The O-RU controller configures the O-RU based on the feature and the parameter.

Abstract: A subscriber station configured to communicate with one or more base stations or other transmission points (TPs) in a wireless communication network is configured to receive, from the network, information associated with one or more of the TPs that are candidates for coordinated multipoint (CoMP) transmission with the subscriber station, to measure a plurality of channel quality values for each of the one or more TPs, and to report the measured channel quality values to the network.

Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.

Abstract: A UE in a wireless communication system is provided. The UE comprises a transceiver configured to receive, from a BS, a SS/PBCH block including the PBCH using a first frequency location (GSCN-Current) over downlink channels, GSCN-Current being based on a set of predefined synchronization rasters that is determined by a global synchronization channel number (GSCN). The UE further comprises a processor operably connected to the transceiver, the processor configured to determine the SS/PBCH block, identify content of a PBCH included in the determined SS/PBCH block, determine a configuration for at least one of the SS/PBCH block that is associated with a PDCCH including scheduling information for RMSI on the GSCN-Current or the SS/PBCH block that is not associated with the PDCCH including the scheduling information for the RMSI on the GSCN-Current.

Abstract: One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.

Abstract: To employ codebook design and signaling for multiple transmit antennas, a user equipment (UE) apparatus includes a processor and a transceiver operably connected to the processor. The transceiver is configured to receive configuration information for a channel state information (CSI) process, receive configuration information for a CSI reference signal (CSI-RS) resource; receive configuration information for a MIMO type; and receive a plurality of codebook parameters when the MIMO type is non-precoded. A base station (BS) apparatus for codebook design and signaling includes a transceiver and a processor operably connected to the transceiver. The processor is configured to configure a UE with a CSI process and a CSI-RS resource, configure the UE with a MIMO type, and cause the transceiver to transmit configuration information for the CSI process, the CSI-RS resource, and the MIMO type to the UE.

Abstract: A method and an apparatus indicate and identify a ZP-CSI-RS configuration. The method for identifying includes identifying a DCI format and the ZP-CSI-RS configuration in response to receiving one or more control messages where a first set of ZP-CSI-RS configuration or configurations are configured to be used for DCI Format 1A and a second set of ZP-CSI-RS configuration or configurations are configured to be used for DCI Format 2D or 2C. The method also includes identifying a PDSCH rate matching based on the identified ZP-CSI-RS configuration. The method for indicating includes transmitting a dynamic signaling control message comprising an indication of a DCI format. The method also includes transmitting transmit a higher layer signaling control message comprising an indication of the ZP-CSI-RS configuration or configurations.

Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.

Abstract: Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.

Abstract: Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

Abstract: A method of user equipment (UE) for beam management in a wireless communication system comprises receiving, from a base station (BS), at least two groups of Tx beams comprising transmit (Tx) signals generated from different antenna panels, the at least two groups of Tx beams transmitted through reference signals; receiving, from the BS, configuration information including a selection constraint for the at least two groups of Tx beams; measuring, based on the configuration information, at least one beam from each of the at least two groups of beams; selecting at least one Tx beam from each of the at least two groups and a same Rx beam set as an Rx beam corresponding to respective selected Tx beams; and transmitting, to the BS, a reporting message including information of the selected Tx beams and the selected same Rx beam set corresponding to the Rx beam.

Abstract: A method of enabling an Open RAN-compatible radio unit (O-RU) to apply different beamforming weights to different physical resource blocks (PRBs) using a single sectionId and a single section extension type includes: specifying a first mode of operation in which flexible sending of beamforming weights from Open RAN-compatible distributed unit (O-DU) to Open RAN-compatible radio unit (O-RU) is provided; and providing, by the O-DU to the O-RU, i) a first parameter specifying the number of bundled physical resource blocks (PRBs) per a set of in-phase/quadrature (I/Q) beamforming weight pairs, each beamforming weight pair comprising an in-phase value and a quadrature value, and ii) a plurality of beamforming weight pairs for a plurality of transceivers associated with each bundle of PRBs. The method provides a new section extension type sent by the O-DU to the O-RU and including a compression parameter for processing or decompressing the beamforming weights.

Abstract: A method of user equipment (UE) for random access operation in a wireless communication system is provided. The method comprises receiving, from a base station (BS), random access channel (RACH) configuration information including RACH chunk information corresponding to at least one antenna beam including a beam identifier (ID), determining a RACH chunk based on the RACH configuration information received from the BS, transmitting, to the BS, a RACH preamble on the determined RACH chunk according to the RACH configuration information associated with the beam ID, and receiving, from the BS, a RACH response (RAR) corresponding to the transmitted RACH preamble and a downlink channel for a RAR transmission, wherein a random access-radio network temporary identification (RA-RNTI) is calculated based on an index of a slot and an index of the RACH chunk on which the RACH preamble is transmitted.

Abstract: An apparatus and method for providing control information in a Multi User-Multiple Input Multiple Output (MU-MIMO) wireless communication system is provided. The method includes receiving a plurality of Resource Elements (REs) including Downlink Control Information (DCI), determining, using the DCI, a set of REs to which a plurality of Downlink Reference Signals (DRSs) may be mapped, determining remaining REs as REs to which data is mapped, and demodulating the data using a precoding vector of a DRS corresponding to the MS.