Distributed smooth handoff using shadow addresses in...

Details Distributed smooth handoff using shadow addresses in... Distributed smooth handoff using shadow addresses in...

2006-07-11

2006-07-11

Nguyen, Chau (Department: 2661)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S401000

Reexamination Certificate

active

07075910

ABSTRACT:
A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer-2 address on the wireline network which serves the mobile station. The shadow address is then used as a wireline identifier for the destination address for frames ultimately destined for the mobile station. The shadow address is stored in a watch list for serving base stations, and any base station receiving a frame with a shadow address in its watch list process the frame to forward it the to mobile station. In this way, the shadow address facilitates carrying out soft handoff and smooth handoff.

REFERENCES:
patent: 2002/0101859 (2002-08-01), Maclean
V.K. Garg, “IS-95 CDMA and cdma 2000:Cellular/PCS Systems Implementation”, pp. 60-62, published by Prentice-Hall, 2000.

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