Bandwidth part configurations for V2X communication
摘要
說明書
Configuration of BWP is also described herein. A UE 102 configured for operation in bandwidth parts (BWPs) of a serving cell, may be configured by higher layers for the serving cell with a set of at most four bandwidth parts (BWPs) for receptions by the UE (DL BWP set) in a DL bandwidth by parameter BWP-Downlink and a set of at most four BWPs for transmissions by the UE (UL BWP set) in an UL bandwidth by parameter BWP-Uplink.
If a UE 102 is not provided higher layer parameter initialDownlinkBWP, an initial active DL BWP may be defined by a location and number of contiguous PRBs, starting from a PRB with the lowest index and ending at a PRB with the highest index among PRBs of a control resource set for Type0-PDCCH common search space, and a subcarrier spacing and a cyclic prefix for PDCCH reception in the control resource set for Type0-PDCCH common search space. Otherwise, the initial active DL BWP may be provided by higher layer parameter initialDownlinkBWP. For operation on the primary cell or on a secondary cell, a UE 102 may be provided an initial active UL BWP by higher layer parameter initialuplinkBWP. If the UE 102 is configured with a supplementary UL carrier, the UE 102 may be provided an initial UL BWP on the supplementary UL carrier by higher layer parameter initialUplinkBWP in supplementaryUplink.
If a UE 102 has a dedicated BWP configuration, the UE 102 may be provided by higher layer parameter firstActiveDownlinkBWP-Id a first active DL BWP for receptions and by higher layer parameter firstActiveUplinkBWP-Id a first active UL BWP for transmissions on the primary cell.
