A terminal according to one aspect of the present disclosure includes a receiving section that receives a medium access control-control element (MAC CE) to update a transmission configuration indication (TCI) state, and a control section that, when a configuration related to at least one of a spatial relation and a pathloss reference signal for a specific uplink signal satisfies an application condition, uses the TCI state for the pathloss reference signal from timing after transmission of a positive acknowledgment (ACK) to the MAC CE. According to one aspect of the present disclosure, it is possible to appropriately transmit a UL signal.

A method for wireless communication is performed by a terminal having a plurality of antenna panels, and includes: respectively communicating with a first cell and a second cell by different antenna panel, in which the first cell is a service cell of the terminal, and the second cell is a cell other than a service cell of the terminal.

Some aspects include an apparatus, method, and computer program product for facilitating control messaging for multi-beam communications in 5G wireless communication systems. Nodes of a 5G network may be generate Medium Access Control Control Elements (MAC CEs) to update User Equipment (UE) with different Component Carrier (CC) settings. The MAC CEs may update a list of CCs to reduce messaging overhead and latency. For example, a MAC CE may indicate an update for a Transmission Configuration Indication (TCI) state for a list of CCs. Similarly, a MAC CE may be used to update a spatial relation for a Sounding Reference Signal (SRS) resource set and/or a SRS resource corresponding to a list of CCs. A MAC CE may also be used to update multiple TCI codepoints having one or two TCI states in a multi-Transmission Reception Point (multi-TRP) scenario.

This application provides example beam management methods, apparatus, and systems. In one example method, a terminal device can receive indication information from a network device. The terminal device can perform beam switching according to an arrangement order of transmission configuration indicator (TCI) states (TCI-states) in a second TCI list when the indication information is first indication information. Alternatively, the terminal device can perform beam switching according to a first TCI-state in a first TCI list when the indication information is second indication information, wherein the first TCI list comprises a plurality of TCI-states comprising the first TCI-state, and in the first TCI list, beams corresponding to TCI-states after the first TCI-state are to sequentially provide a service for the terminal device.

Methods and apparatuses for beam measurement reporting in a wireless communication system. A method of operating a user equipment (UE) includes receiving, before transmission configuration indication (TCI) states are configured, first configuration information for: (i) a set of downlink (DL) reference signal resources associated with a physical downlink shared channel (PSDCH) and (ii) a set of uplink (UL) reference signal resources associated with a physical uplink shared channel (PUSCH). The method further includes measuring the set of DL reference signal resources; calculating associated metrics; transmitting a first measurement report corresponding to the set of DL reference signal resources; receiving an indication of a DL reference signal resource that indicates quasi-colocation (QCL) properties for subsequent receptions of DL channels; and receiving an indication of an UL reference signal resource that indicates a spatial domain filter for subsequent transmissions of UL channels.

A base station, user equipment, and communication signal transmitting and receiving methods. A communication signal transmitting apparatus includes a transmitter; a processor, and non-transitory computer-readable storage medium storing a program for execution by the processor, the program including instructions to determine at least two different resource element groups to use to transmit a synchronization signal, each different resource element group of the at least two different resource element groups used to separately transmit the synchronization signal, and transmit the synchronization signal to user equipment on each of the resource element groups, where, for each resource element group, the synchronization signal transmitted on the respective resource element group carries at least one piece of same information, the same information is cell specific information, and the synchronization signals transmitted on the at least two resource element groups using different beams.

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of whether to use uplink reference signals or downlink reference signals for uplink precoder determination. The UE may selectively transmit a plurality of uplink reference signals or one or more measurement reports based at least in part on the indication, wherein the one or more measurement reports are determined based at least in part on measuring a plurality of downlink reference signals. The UE may receive an indication of a precoder, of a plurality of precoders, to be used to precode an uplink communication, wherein the precoder is identified based at least in part on the plurality of uplink reference signals or the one or more measurement reports. The UE may precode the uplink communication using the precoder. Numerous other aspects are provided.

An example method includes receiving, by a wireless device, downlink control information (DCI). The DCI may schedule transport blocks (TBs) via physical downlink shared channels (PDSCHs) at a first slot and a second slot. The DCI may also indicate a first transmission configuration indicator (TCI) state for reception of the TBs. The method may also include receiving, based on a second TCI state, a first TB, of the TBs, at the first slot. The method may also include receiving, based on the first TCI state, the second TB, of the TBs, at the second slot in response to a time difference between the first slot and the second slot being larger than a time gap.

Aspects described herein relate to power control for uplink beam sweep. In one aspect, a network entity may determine a beam sweep pattern including one or more beams for a user equipment (UE), the beam sweep pattern associated with transmission on at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). The network entity may also transmit an indication including the one or more beams for the beam sweep pattern to the UE. In another aspect, a UE may receive an indication including a beam sweep pattern including one or more beams for transmission on at least one of a PUSCH or a PUCCH. The UE may perform beam sweep using one or more beams on at least one of the PUSCH or the PUCCH based on the beam sweep pattern.

The disclosure provides an apparatus and method supporting enhanced transmission schemes of up to 8 transmission port (8 TX) uplink (UL) transmission for sounding reference signals (SRSs). A method performed by a user equipment (UE) includes receiving, from a base station, downlink control information (DCI) including a sounding reference signal (SRS) resource indicator (SRI) field; and transmitting an SRS based on an SRS resource allocated to the UE in the SRI field. The SRI field indicates a transmission rank and one or more precoding weights based on an SRS set including N.sub.SRS SRS resources, where 1≤N.sub.SRS≤8, and an SRI field bit length that is less than a threshold value determined from a maximum number of layers to be transmitted and the N.sub.SRS SRS resources.