Method for performing a handoff in an ALL-IP network

Details Method for performing a handoff in an ALL-IP network Method for performing a handoff in an ALL-IP network

2002-12-30

2009-06-09

Kizou, Hassan (Department: 2419)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S439000, C455S442000

Reexamination Certificate

active

07545775

ABSTRACT:
A method for performing a handoff in an ALL-IP network. The Mobile Station (MS) transmits measurement information to a new Base Transceiver System (BTS) and the Radio Network Controller (RNC) to start a handoff, the RNC requests the new BTS to set up a radio link with the MS. When the radio link is set up between the MS and the new BTS, the RNC requests to delete header information of the MS stored in an old BTS. The MS transmits a message including traffic header information to the new BTS, the new BTS transmits a binding update message to the MS. Then the MS transmits only the voice frame excluding the traffic header information to the new BTS.

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