Systems and methods for multimode wireless communication handoff

摘要

Methods and apparatus for easily and quickly returning to a first radio access technology (RAT) network when handover to a second RAT network is cancelled are provided. The methods and apparatus may involve a mobile station (MS) entering idle mode before handover to the second RAT network is completed and requesting a serving base station (BS) to retain MS service and operational information, as well as service flow state information. In this manner, should handover to the second RAT network be cancelled before completion, a re-entry to the first RAT network may be expeditiously performed using the retained MS information.

主权项

1. A method for performing handover of a mobile station (MS) between network service via first and second radio access technologies (RATs), comprising:
communicating via the first RAT; triggering a handover to network service via the second RAT, wherein the first and second RATs are different; performing one or more actions to facilitate retention of MS information by a base station of the first RAT until completion of the handover to network service via the second RAT; and entering, by the MS, an idle mode before completing the handover to network service via the second RAT, and before accessing network service via the second RAT during the handover.