Methods and systems for assigning channels in a power...

Details Methods and systems for assigning channels in a power... Methods and systems for assigning channels in a power...

Filed on

2006-10-03

Date issued

2006-10-03

Examiner

Maung, Nay (Department: 2684)

Patent Class

Telecommunications

SubClass

Radiotelephone system

SubSubClass

Zoned or cellular telephone system

Other Related Categories

C455S069000, C455S067110, C455S451000, C455S452100

Type

Reexamination Certificate

Status

active

Patent number

07116982

Description

ABSTRACT:
Systems and methods for intelligently assigning a channel to a device being used by a mobile user in a power controlled, wireless communications system by minimizing the difference between a mobile user's received signal power and the minimum received signal power of a current user on a candidate carrier frequency. Each carrier frequency within a cell is examined to determine whether it has at least one current user assigned to a channel and also has at least one unoccupied channel. For each carrier frequency that meets both of these requirements, a channel quality metric is obtained for each occupied channel. The carrier frequencies are pruned down to a subset of candidate carrier frequencies using the channel quality metrics. Finally, a channel within the set of candidate carrier frequencies is selected by computing a cost function based on the received signal power of the mobile user and the received signal power of each occupied channel.

REFERENCES:
patent: 5280288 (1994-01-01), Sherry et al.
patent: 5483666 (1996-01-01), Yamada et al.
patent: 6104930 (2000-08-01), Ward et al.
patent: 2003/0123425 (2003-07-01), Walton et al.
patent: 2004/0053587 (2004-03-01), Nagai et al.
patent: 2005/0037766 (2005-02-01), Hans et al.

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