Patent ID: 7512110
Filing Date: 2009-03-31
Classification: H04W

Abstract:
1. A method to facilitate hard handoff of an access terminal (AT) between a source High Rate Packet Data (HRPD) radio access network (RAN) and a target HRPD RAN, the method comprising: receiving, by the target RAN from the source RAN, a handoff request for the AT, involved in an active HRPD packet data session at the source ran, to enable the AT to handoff without the session transitioning to a dormant mode or dropping; receiving, by the target RAN from the AT, traffic channel complete signaling; sending, by the target RAN to the AT in response to the traffic channel complete signaling, an assignment of a unicast access terminal identifier (UATI) for the AT; supporting, by the target RAN, the HRPD packet data session of the AT in an active model; sending, by the target RAN to the source RAN, a handoff request acknowledgment that indicates that the handoff request was accented by the target RAN, wherein the handoff request acknowledgment comprises handoff-related information from the group consisting of a mobile node identifier of the AT, a handoff target sector identifier, and at least a portion of a traffic channel assignment message to be sent to the AT.