CPC H04W 36/0069 (2018.08) [H04W 36/08 (2013.01); H04W 36/30 (2013.01)] | 22 Claims |
1. An apparatus, comprising:
memory; and
processing circuitry in communication with the memory, wherein the processing circuitry is configured to:
decode a message for a handover of a User Equipment (UE) to a target base station, wherein a source base station is a primary base station for the UE before the handover;
determine, based on the message, that the target base station is to be the primary base station for the UE after the handover;
encode, for transmission to the source base station, a sequence number (SN) status transfer request message that indicates a highest SN of data packets received from the source base station for relay to the UE;
decode, from the source base station, an SN status transfer message that indicates a starting SN for subsequent data packets;
encode, for transmission to the UE while operating as a secondary base station, a first data packet received from the source base station;
encode, for transmission to the UE while operating as the primary base station, a second data packet received from the network; and
refrain from reception of data packets from the source base station for relay to the UE.
|