Patent ID: 11968711
Assignee: COMCAST CABLE COMMUNICATIONS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A first base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the first base station to:
receive, from a wireless device, an uplink signal via a cell of a plurality of cells configured for the wireless device, wherein the plurality of cells comprise:
a first cell group associated with the first base station; and
a second cell group associated with a second base station;

after receiving the uplink signal, send, to the second base station, an indication of a failure of a listen-before-talk (LBT) procedure, of the first base station, for sending downlink transmission via an unlicensed cell of the first cell group; and
receive, from the second base station and based on the indication of the failure of the LBT procedure, an indication of a change for at least one cell of the first cell group, wherein the change comprises a change in status of the at least one cell of the first cell group.