METHOD AND APPARATUS FOR ASSISTING DATA TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20170265182A1

    公开(公告)日:2017-09-14

    申请号:US15454559

    申请日:2017-03-09

    Abstract: A method and apparatus are disclosed for assisting data transmission in a wireless communication system. In one embodiment, the method includes a UE transmitting information to a base station, wherein the information at least indicates time to start an uplink transmission by the UE. In another embodiment, the method could include the UE receiving, from the base station, a configuration indicating a periodic uplink resource allocation. In addition, the method could include the UE performing the uplink transmission based on the periodic uplink resource allocation.

    Method and apparatus for obtaining time alignment regarding multiple TRPS in a wireless communication system

    公开(公告)号:US12156263B2

    公开(公告)日:2024-11-26

    申请号:US17866055

    申请日:2022-07-15

    Abstract: Methods, systems, and apparatuses are provided for enhancing timing alignment for uplink (UL) multi-Transmission/Reception Point (TRP) (or mTRP) scenarios in a wireless communication system. A method for a UE in a wireless communication system can comprise receiving a signaling, wherein the signaling indicates activation for a first TRP and/or is a Physical Downlink Control Channel (PDCCH) signal, determining to perform a first random access procedure on the first TRP, based on the signaling, to obtain a first Time Alignment (TA) information associated with the first TRP, and performing multi-TRP operation on the first TRP associated with the first TA information and a second TRP associated with a second TA information.

    Method and apparatus for mobility procedure regarding MAC reset in a wireless communication system

    公开(公告)号:US11736986B2

    公开(公告)日:2023-08-22

    申请号:US17410020

    申请日:2021-08-24

    Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives a first Radio Resource Control (RRC) message indicative of switching a Primary Cell (PCell) of the UE to a first cell, wherein the first RRC message is indicative of a first configuration of the first cell. The UE resets a Medium Access Control (MAC) entity associated with the PCell of the UE in response to receiving the first RRC message. The UE receives a second RRC message indicative of a second configuration of a second cell. The UE receives a signaling indicative of initiating a mobility procedure to switch the PCell of the UE to the second cell. The signaling includes a Physical Downlink Control Channel (PDCCH) signaling and/or a MAC Control Element (CE). The UE does not reset the MAC entity associated with the PCell of the UE in response to the mobility procedure.

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