Method and system for making handoff between CDMA mobile...

Details Method and system for making handoff between CDMA mobile... Method and system for making handoff between CDMA mobile...

2007-12-11

2007-12-11

Pham, Chi (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S335000, C370S342000, C455S436000

Reexamination Certificate

active

09964537

ABSTRACT:
A method and system for performing a handoff between different CDMA systems in a mobile communication network having first and second cells and a gateway cell is disclosed. The handoff between the first and second cells is performed using a gateway, wherein one frequency is used by the first cell and a first sector of the gateway, and a second frequency is used by the second cell and a second sector of the gateway. The system and method allow for performing a handoff of a call between two different communication systems having two different communication standards, such as between a CDMA 2G system and a CDMA 3G system, and further allows for the handoff to be performed without dropping the call.

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JP Office Action w/ English translation.
Chinese Office Action dated Sep. 7, 2007, and its English translation.

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