Patent ID: 9155078
Filing Date: 2015-10-06
Classification: H04W

Abstract:
1. A method of operating a mobile station in a packet transfer mode, the method comprising: receiving a temporary block flow (TBF) assignment message from a base station assigning an uplink TBF to the mobile station; transmitting data packets available in an uplink queue to the base station using the uplink TBF; monitoring a downlink packet associated control channel for arrival of a distribution timing advance message; receiving the distribution timing advance message on the downlink packet associated control channel from the base station, the distribution timing advance message containing a plurality of mobile station identifiers and associated timing advance values; determining that a new data packet is available in the uplink queue; identifying one of the plurality of mobile station identifiers as corresponding to the mobile station; determining the timing advance value associated with the identified one of the plurality of mobile station identifiers for use for transmission of the new data packet to the base station; adjusting the timing of an uplink transmission to the base station responsive to the timing advance value: and transmitting the new data packet to the base station using the uplink TBF and the timing advance value determined for transmission of the new data packet.