Patent ID: 9661547
Date: 2017-05-23
CPC Classifications: H04W

Claim:
1. A method for configuring a user equipment device (UE) with a timing-advance setting for communication between the UE and a handover target, the method comprising: while the UE is being served by a handover source, (i) transmitting from the handover source to the handover target a measurement request that specifies an uplink reference signal of the UE, and (ii) receiving at the handover source from the handover target, in response to the measurement request, a timing-advance value determined by the handover target based on evaluation of the specified uplink reference signal of the UE; and transmitting from the handover source to the UE a handover directive that directs the UE to hand over from being served by the handover source to being served by the handover target and that provides the UE with the received timing-advance value to be used by the UE as the timing-advance setting for communication between the UE and the handover target.