NR V2X communications using sidelink bandwidth parts

    公开(公告)号:US11546743B2

    公开(公告)日:2023-01-03

    申请号:US17252716

    申请日:2019-10-29

    Abstract: An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for New Radio (NR) vehicle-to-everything (V2X) sidelink communication. The processing circuitry is to decode radio resource control (RRC) signaling from an authorized V2X network entity. The RRC signaling including configuration information to activate a sidelink transmit (TX) bandwidth part (BWP) of a plurality of sidelink TX BWPs within a sidelink carrier. Data is encoded for transmission to a second UE using a first sidelink signal. The processing circuitry is to cause transmission of the encoded data via the first sidelink signal. A bandwidth of the first sidelink signal during the transmission is within the activated sidelink TX BWP.

    INTERRUPTION AND DELAY FOR V2X SIDELINK CARRIER AGGREGATION

    公开(公告)号:US20210392624A1

    公开(公告)日:2021-12-16

    申请号:US17459569

    申请日:2021-08-27

    Abstract: Systems and methods provide solutions for delay and interruption requirements for vehicle-to-everything (V2X) sidelink carrier aggregation (CA). For example, when any number of component carriers is added for V2X CA, a user equipment (UE) capable of V2X sidelink communication is allowed an interruption of up to two subframes to the cellular network. The interruption may be for both uplink and downlink of a serving cell or primary cell.

    COMMON TCI SWITCH DELAY FOR CARRIER AGGREGATION

    公开(公告)号:US20250070849A1

    公开(公告)日:2025-02-27

    申请号:US18723940

    申请日:2023-02-08

    Abstract: An apparatus and system of establishing a Transmission Configuration Indication (TCI) state switch delay are described. The TCI state switch delay for a reference signal (RS) on a component carrier (CC) in intra-band carrier aggregation (CA) is dependent on whether a TCI state indicated in the DCI is known based on a type of Quasi Co-Location (QCL) and whether a common TCI state ID is known on the CC. The delay is known for a delay of QCL-typeD RS on the CC or any other QCL-typeD RS in the CC set that contains the CC. The delay may be based on that of a single CC delay, with the slot where the new TCI state applies determined based on a carrier with a smallest subcarrier spacing (SCS) in the CC or the CC set.

    RADIO RESOURCE MANAGEMENT REQUIREMENTS FOR UNIFIED TRANSMISSION CONFIGURATION INDICATOR FRAMEWORK

    公开(公告)号:US20240380504A1

    公开(公告)日:2024-11-14

    申请号:US18289983

    申请日:2022-08-04

    Abstract: An apparatus and system for a unified transmission configuration indicator (TCI) state switch requirement are described. Both radio resource management and TCI state switch delay requirements are described. The UL TCI state switch delay requirement may depend on whether a downlink (DL) reference signal (RS) associated with the UL TCI state satisfies known conditions, as well as whether a joint or separate TCI mode is being used. In the separate TCI mode. the delay requirement may include timing between a DL data transmission and acknowledgement, and also include a time for receive beam refinement in frequency range2. In the joint TCI mode. the UL and DL TCI state switch delay requirement—due may be the same or may be the same as the separate TCI mode.

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