Method and apparatus for determining hand-off candidates in a co

Details Method and apparatus for determining hand-off candidates in a co Method and apparatus for determining hand-off candidates in a co

1997-11-26

1999-12-07

Patel, Ajit

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370332, 455436, H04Q 700

Patent

active

05999522&

ABSTRACT:
A communication system provides wireless communication in a coverage area and includes a base station (100) and a mobile station (290). The base station (100) has a plurality of sectors (210, 220, 230, 240, 250, 260) where a corresponding plurality of pilot signals (212, 222, 232, 242, 252, 262) are transmitted. A sector (210) transmits a forward link signal (211) for communicating to the mobile station (290). The mobile station (290) transmits a reverse link signal (215) and a message signal including a list of a plurality of candidate sectors for a soft hand-off routine. A method and apparatus of determining the candidate list includes measuring reverse link signal (215) which are received at said plurality of sectors. Then, comparing reverse link signal level received at sector (210) to the reverse link signal levels received at all other sectors of said plurality of sectors (210, 220, 230, 240, 250, 260). Finally, the candidate list is determined according to a result of comparing the reverse link signal levels.

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Soft Handoff Pilot Detection; TR45.5.3.4/94.01.10.03; GTE labaratories Incorporated, Jan. 10, 1994.
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