Nortel Networks Corporation

Jill R Baumann

Daniel Thomas Carter

Stephen Bennett Elliott

Srinivas Eswara

James Eric Wilson

Regena Lee Richardson

A system and method collects radio frequency isolation values with the assistance of mobile stations operating within a cellular wireless communication system. A broadcast channel and a broadcast cell/sector are first chosen. Then, the broadcast channel is disabled in neighboring (or all) other cells/sectors in the system. The base station servicing the broadcast cell/sector then transmits on the broadcast cell sector. Mobile stations operating within the system are then directed to measure and report the signal strength of the broadcast channel as well as a traffic channel servicing their ongoing calls. The mobile stations then report these signal strengths to the cellular wireless communication system. The signal strength measurements are then used to calculate cell/sector radio frequency isolation values between the broadcast cell/sector and respective servicing cell/sectors. Because the broadcast channel may be transmitted at a greater level than normal transmissions, a normalization process may be required. This process is then repeated for each cell/sector in the system so that cell/sector radio frequency isolation values may be collected for these other cells/sectors. Finally, all collected cell/sector isolation values are processed and complied to create an isolation matrix.

System and method for using mobile station signal strength measurements to collect radio frequency isolation data in a cellular network

A system and method for quality-driven channel selection in a communication network that measures interference on idle and active voice channels in a first quality-driven channel selection (QCS) cell is disclosed. A voice channel queue is automatically ordered based on a clearest voice channel which is determined by a reverse bit error rate (RBER) measurement and a forward bit error rate (FBER) measurement on the active voice channels and by an idle noise measurement on the idle voice channels. Further, dynamic channel sets (DCS) are created from the voice channel queue based on the RBER, FBER, and idle noise received, where the DCS are queues that include low interference channels and moderate interference channels.

System and method for quality-driven channel selection in a communication network

The present invention incorporates information representing the location and movement of a mobile station in a wireless telecommunications network to manage and control hand-offs, reduce the risk of falsing, prioritize channel assignments and control the power level of channels.

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Wylie, TX, United States of America

Jill R Baumann