Patent ID: 9237495
Filing Date: 2016-01-12
CPC Classification: H04W

Claim Text:
1. A method for performing handover of a mobile device between a first radio access network (RAN) and a second RAN, the first and second RANs configured according to different radio access technologies (RAT), the method comprising: buffering a plurality of data packets at the mobile device, wherein the buffering occurs substantially upon a detection of a handover condition; transmitting the plurality of data packets via the first RAN from the mobile device; tracking a transmission status of individual packets of the plurality of data packets; initializing a handover between the first RAN and the second RAN; removing the individual data packets from the buffered plurality of data packets based on the transmission status; and transmitting a remainder of the buffered plurality of data packets via the second RAN from the mobile device when the handover is complete.