Nortel Networks Corporation

Northern Telecom Limited

Ramanathan Balachander

Balaji S Holur

Louis Perez

Payam Maveddat

Christopher S Reece

Shun Hua Zhou

F Marco Marchetti

Gokul V Subramaniam

Chu-Rui Chang

Marcos Harms

Robert L Hicks, Jr

A fixed wireless access system includes circuitry for routing a call for a subscriber having a directory number not only through the primary cell, but also through any secondary cell for a border cell subscriber. In each case, the primary and secondary cells borders a geographically located near the geographic location of the border cell subscriber. For calls that are being routed to the border cell subscriber, one of a plurality of subscriber features including call forward no-answer, call forward unconditional or multiple access directory numbers may be used to cause the switch to trigger one or more fixed wireless access controllers to generate page request signals to the base stations for the border cell subscriber. For calls originated by the border cell subscriber, the subscriber's directory number is placed within the subscriber list for each base station whose cell borders are located geographically near the border cell subscribers geographic location. Accordingly, if the border cell subscriber unit locks onto a base station of a secondary border cell, the controller recognizes the subscriber unit and may process the call.

Method and apparatus for routing subscriber originated calls in a fixed

While setting up a fixed wireless system, each subscriber radiotelephone is configured to a permanent home cell. Subscribers located at the border of a cell may be configured to multiple cells for better coverage. The signal levels at the border subscriber's position are received and the mean values of each determined. These mean values are listed in descending order. If the largest mean value is greater than a predetermined threshold, the subscriber is configured to only the home cell. If the largest mean value is within a predetermined range, the second largest mean value is evaluated to determine if it is within the predetermined range. If so, the subscriber is configured to both serving cells. If the second largest mean value is outside the predetermined range, the subscriber is configured to only the home cell.

Spatially-oriented subscriber configuration in a fixed wireless system

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Dallas, TX, United States of America

Ramanathan Balachander