Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method comprises: transmitting coherent information of a communication device; and receiving configuration information for the communication device, wherein the configuration information indicates a plurality of phase tracking reference signal (PTRS) ports assigned to the communication device and is based at least on the coherent information.

Abstract: Methods and apparatuses for beam reporting are disclosed. In one embodiment, a base unit comprises: a transmitter that transmits a set of reference signal (RS) resources for beam management to a remote unit; and a receiver that receives an interference report including at least one of inferences of RS resource, contained in the set of the RS resources to an associated RS resource, wherein each RS resource contained in the set of the RS resources is received at the remote unit with a receiver that is the same as the receiver of the associated RS resource.

Abstract: The present application relates to method and apparatus for subband based channel access on unlicensed spectrum. One embodiment of the present disclosure provides a method comprising: receiving a downlink control information (DCI) for scheduling transmission of data on a set of bandwidth portions of a carrier, wherein the carrier comprises a plurality of bandwidth portions; performing a listen-before-talk (LBT) test on the set of bandwidth portions; and transmitting the data on one or more bandwidth portions of the set of bandwidth portions based on a result of the LBT test.

Abstract: Embodiments of the present disclosure are directed to a method and apparatus for TRP downlink transmission. In an embodiment of the present disclosure, the apparatus includes at least one transmitter that transmits a spatial information configuration for downlink transmission. The spatial information configuration configures at least one time unit for at least one of predefined spatial information and un-predefined spatial information. In the case that the time unit is configured for the predefined spatial information, the downlink transmission is transmitted according to the predefined spatial information. In the case that the time unit is configured for un-predefined spatial information, the downlink transmission is transmitted according to the spatial information indicated in the specific spatial information in the downlink control channel or configured by the high layer signaling.

Abstract: The present disclosure relates to method and apparatus for multiple panel and/or multiple beam codebook based PUSCH transmissions. The method includes receiving, at a User Equipment (UE), Downlink Control Information (DCI) including two or more sets of parameters; and performing codebook based Physical Uplink Shared Channel (PUSCH) transmission for transmitting the two or more codewords according to the two or more sets of parameters, respectively; wherein each of the two or more sets of parameters includes at least one of a Sounding Reference Signal Resource Indicator (SRI), a Transmitted Precoding Matrix Indicator (TPMI), a Modulation Coding Scheme (MCS), a New Data Indicator (NDI) and a Redundancy Version (RV).

Abstract: Apparatuses, methods, and systems are disclosed for channel state information calculation. One method (900) includes receiving (902) information indicating at least one channel state information reference signal resource for channel measurement transmitted from a first transmission resource and at least one non-zero-power channel state information reference signal resource for interference measurement transmitted from a second transmission resource. The method (900) includes determining (904) a channel state information reference signal resource and a non-zero-power channel state information reference signal resource for calculating channel state information. The method (900) includes calculating (906) the channel state information based on the channel state information reference signal resource and the non-zero-power channel state information reference signal resource.

Abstract: Methods, a base unit and a remote unit are disclosed. A method comprises determining two or more SRS resource sets for codebook or non-codebook based UL transmission of the mobile unit in the condition that the number of antenna ports simultaneously used by the mobile unit for transmitting is smaller than the number of antenna ports simultaneously used by the mobile unit for receiving; and transmitting a trigger associated with the two or more SRS resource sets to the mobile unit to trigger resource transmissions by the mobile unit.

Abstract: Apparatuses, methods, and systems are disclosed for determining a TPMI for a codebook set. One method includes receiving information indicating a transmission capability of a remote unit. The method includes determining a transmit precoding matrix indication based on a rank and a codebook corresponding to the transmission capability and the rank, wherein the transmit precoding matrix indication corresponding to a rank of one includes a maximum of five bits, and the transmit precoding matrix indication corresponding to a rank of two includes a maximum of four bits. The method includes transmitting the transmit precoding matrix indication to the remote unit.

Abstract: Apparatuses, methods, and systems are disclosed for determining a power offset parameter. One method (500) includes determining (502) a power vector using at least one sounding reference signal resource. The power vector includes a power corresponding to each port of a device. The method (500) includes determining (504) a power offset parameter based on the power vector, and transmitting (506) the power offset parameter.

Abstract: Methods, a base unit and a remote unit are disclosed. According to one embodiment, a method at abase unit, comprise: transmitting higher layer parameters to configure two or more sounding reference signal (SRS) resource sets for a non-codebook based physical uplink share channel (PUSCH) transmission, the SRS resources in same SRS resource set are configured with same spatial relation information, and configuring and transmitting a quasi co-location (QCL) information for a non zero power (NZP) channel state information reference signal (CSI-RS) resource, in the condition that aperiodic NZP CSI-RS resource is associated with the SRS resource set for non-codebook based PUSCH transmission.

Abstract: The present disclosure relates to methods and apparatuses for PUSCH transmissions. According to an embodiment of the present disclosure, a method can include: configuring a transmission configuration parameter set for a Type-1 physical uplink shared channel transmission for a user equipment, and transmitting the transmission configuration parameter set to the user equipment. Wherein: in the case that a transmission scheme of the user equipment is configured as codebook-based transmission, two or more transmit precoding matrix indicators are configured; and in the case that the transmission scheme of the user equipment is configured as non-codebook-based transmission, two or more indications for sounding reference signal resource indicator are configured; and transmitting the transmission configuration parameter set to the user equipment.

Abstract: Apparatuses, methods, and systems are disclosed for determining a TPMI for a codebook set. One method includes receiving information indicating a transmission capability of a remote unit. The method includes determining a transmit precoding matrix indication based on a rank and a codebook corresponding to the transmission capability and the rank, wherein the transmit precoding matrix indication corresponding to a rank of one includes a maximum of five bits, the transmit precoding matrix indication corresponding to a rank of two includes a maximum of four bits, and the transmit precoding matrix indication corresponding to a rank of three includes a maximum of three bits. The method includes transmitting the transmit precoding matrix indication to the remote unit.

Abstract: The present disclosure relates to methods and apparatuses. According to an embodiment of the disclosure, a method comprises: transmitting the number of antenna panels equipped at a user equipment (UE), transmitting the number of panel groups (PGs), transmitting PG information indicating which antenna panel is grouped into which PG, transmitting the number of coherent PGs (CPGs), and transmitting CPG information indicating which PG is grouped into which CPG.

Abstract: Apparatuses, methods, and systems are disclosed for determining a TPMI for a codebook set. One method includes receiving information indicating a transmission capability of a remote unit. The method includes determining a transmit precoding matrix indication based on a rank and a codebook corresponding to the transmission capability and the rank, wherein the transmit precoding matrix indication corresponding to a rank of one includes a maximum of five bits, the transmit precoding matrix indication corresponding to a rank of two includes a maximum of four bits, and the transmit precoding matrix indication corresponding to a rank of three includes a maximum of three bits. The method includes transmitting the transmit precoding matrix indication to the remote unit.

Abstract: Method and apparatus for reduction of the signaling/resource overhead caused by SRS transmission in UL are disclosed. One method of a UE for the reduction of the signaling/resource overhead caused by SRS transmission in UL includes performing precoding on UL transmission with a precoding matrix corresponding to a CRI, in the case of a frequency of UL and DL being in a same band and Tx/Rx beam correspondence, wherein, the CRI corresponding to the precoding matrix is determined according to a measurement on DL channel quality; and transmitting a report of the measurement on DL channel quality to a base station.

Abstract: The present disclosure relates to methods and apparatuses. According to an embodiment of the disclosure, a method comprises: transmitting the number of antenna panels equipped at a user equipment (UE), transmitting the number of panel groups (PGs), transmitting PG information indicating which antenna panel is grouped into which PG, transmitting the number of coherent PGs (CPGs), and transmitting CPG information indicating which PG is grouped into which CPG.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method comprises: receiving, at a user equipment (UE), a request to determine a spatial information for configuring a sounding reference signal (SRS) resource, and transmitting the SRS resource according to the spatial information determined by the UE.

Abstract: Apparatuses, methods, and systems are disclosed for determining a precoder for PTRS ports. One method (800) includes receiving (802) information indicating a precoder for transmission. The method (800) includes determining (804) a precoder for each phase tracking reference signal port based on the information. Another method (900) includes transmitting (902) information indicating a precoder for transmission. The method (900) includes receiving (904) one or more phase tracking reference signal ports precoded with the precoder.

Abstract: The present disclosure relates to methods and apparatuses. According to an embodiment of the disclosure, a method comprises: transmitting the number of antenna panels equipped at a user equipment (UE), transmitting the number of panel groups (PGs), transmitting PG information indicating which antenna panel is grouped into which PG, transmitting the number of coherent PGs (CPGs), and transmitting CPG information indicating which PG is grouped into which CPG.

Abstract: Apparatuses, methods, and systems are disclosed for determining information corresponding to beamforming. One method (1400) includes determining (1402) a grouping arrangement corresponding to a type of beamforming. The type of beamforming includes analog beamforming, digital beamforming, hybrid beamforming, or some combination thereof. The method (1400) includes determining (1404) a set of information corresponding to the grouping arrangement. The set of information includes the type of beam-forming. The method (1400) includes transmitting (1406) the set of information to a base unit.