Power control in wireless communications
摘要
說明書
As described herein, improvements may be achieved, for example, by implementing different path loss determinations associated with different TRPs (and/or associated different resource pools). The wireless may determine/use at least one of different default pathloss references for communications with different TRPs, for example, if the wireless device receives DCI not comprising an SRI field. The wireless device may use different default pathloss reference signals for different TRPs (and/or different coreset pools), for example, to determine a transmission power for communication with that TRP. Each TRP may correspond to a respective coreset pool, and that coreset pool may be associated with a plurality of power control parameter sets for that coreset pool. If the wireless device receives DCI that omits an SRI field, the wireless device may select one of those power control parameter sets by default, and use that selected power control parameter set for its transmission power determination. Selecting the power control parameter set may be done by selecting a control parameter set, of the plurality that are associated with the coreset pool, having a lowest index value. Different power control parameter sets may be identified by different indexes, and the wireless device may select a lowest power control parameter set index, and use the corresponding power control parameter set for determining its transmission power. The wireless device may determine, for the first TB, the first transmission power based on a first pathloss reference signal mapped to a first power control parameter set associated with a first power control parameter set index (e.g., the value of the first power control parameter set index is equal to zero). The wireless device may determine, for the second TB, the second transmission power based on a second pathloss reference signal mapped to a second power control parameter set associated with a second power control parameter set index (e.g., the value of the second power control parameter set index is equal to one). The wireless device may determine whether a TB is associated with (e.g., belongs to) the first TRP or the second TRP, for example, based on a coreset pool index of a coreset that the wireless device receives DCI scheduling/activating the TB.
