Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-07-23
2000-01-04
Urban, Edward F.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455 673, 455439, 455513, H04Q 720
Patent
active
060119705
ABSTRACT:
A method and system for use with wireless communication systems having a cellular architecture with at least a first and a second cell. The method and system provided ensure near uniform capacity and quality of channels within the second cell via the following steps. The noise signal power in unused data channels within the second cell is monitored. When a request for channel access is received, a determination is made whether the request for channel access is either a request for handoff from the first cell into the second cell, or not. In the event that the request is not a request for handoff, a determination is made whether idle channels exist to satisfy the request for channel access. In the event of a determination either that the request for channel access is a request for handoff, or both that the request is not a request for handoff and that idle channels exist to satisfy the request, a measured received signal power of a mobile unit subscriber unit making the request is determined. One of the unused channels in the second cell is then preferentially assigned to the mobile subscriber unit where such preference in assigning is to assign a channel, provided that a signal to noise ratio calculated upon the monitored received signal power and the monitored noise signal power of the preferentially assigned noisy channel meets or exceeds a required signal to noise ratio.
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Crane John D.
Dillon Andrew J.
Gesesse Tilahun
Nortel Networks Corporation
Urban Edward F.
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