Layer 1 based uplink-only cell switch
AssigneeQUALCOMM Incorporated
InventorsQian Zhang, Junyi Li, Yan Zhou, Tianyang Bai, Kiran Venugopal, Ling Ding, Jung Ho Ryu, Tao Luo
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, to a base station, a request for a cell switch based at least in part on a trigger condition associated with an uplink-only cell switch being satisfied; and perform the uplink-only cell switch based at least in part on a physical-layer or medium-access-control layer inter-cell mobility operation with the base station based at least in part on transmitting the request. Numerous other aspects are provided.
Claims30
A method of wireless communication performed by a user equipment (UE), comprising:
- transmitting, to a base station, a request for a cell switch responsive at least in part to a trigger condition associated with an uplink-only cell switch being satisfied;
- performing the uplink-only cell switch in accordance at least in part with a physical-layer operation or a medium-access-control layer inter-cell mobility operation;
- receiving, responsive to performing the uplink-only cell switch, downlink communications using a first beam;
- and
- transmitting, responsive to performing the uplink-only cell switch, uplink communications using a second beam, the first beam being used for an uplink of the UE before the uplink-only cell switch and the second beam being used for the uplink of the UE after the uplink-only cell switch.
A method of wireless communication performed by a base station, comprising:
- receiving, from a user equipment (UE), a request for a cell switch responsive at least in part to a trigger condition associated with an uplink-only cell switch being satisfied;
- transmitting, to the UE, information configuring the uplink-only cell switch;
- performing the uplink-only cell switch with the UE in accordance with the information configuring the uplink-only cell switch and in accordance with a physical-layer operation or a medium-access-control layer inter-cell mobility operation;
- transmitting, responsive to performing the uplink-only cell switch, downlink communications using a first beam;
- and
- receiving, responsive to performing the uplink-only cell switch, uplink communications using a second beam, the first beam being used for an uplink of the UE before the uplink-only cell switch and the second beam being used for the uplink of the UE after the uplink-only cell switch.
A user equipment (UE) for wireless communication, comprising:
- a memory;
- and
- one or more processors operatively coupled with the memory, the one or more processors configured to:
- transmit, to a base station, a request for a cell switch responsive at least in part to a trigger condition associated with an uplink-only cell switch being satisfied;
- perform the uplink-only cell switch in accordance at least in part with a physical-layer operation or a medium-access-control layer inter-cell mobility operation with the base station;
- receive, responsive to the uplink-only cell switch, downlink communications using a first beam;
- and
- transmit, responsive to the uplink-only cell switch, uplink communications using a second beam, the first beam being used for an uplink of the UE before the uplink-only cell switch and the second beam being used for the uplink of the UE after the uplink-only cell switch.
A base station for wireless communication, comprising:
- a memory;
- and
- one or more processors operatively coupled to the memory, the one or more processors configured to:
- receive, from a user equipment (UE), a request for a cell switch responsive at least in part to a trigger condition associated with an uplink-only cell switch being satisfied;
- transmit, to the UE, information configuring the uplink-only cell switch;
- perform the uplink-only cell switch with the UE in accordance with the information configuring the uplink-only cell switch and in accordance with a physical-layer operor medium-access-control layer inter-cell mobility operation.
Dependencies are inferred from the claim text.