Beacon detection system for sharing spectrum between wireless co

Multiplex communications – Wide area network – Packet switching

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370 953, 455 62, 455 63, 455 671, 379 59, H04Q 700, H04B 726, H04B 1500

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053612582

ABSTRACT:
A system for spectrum sharing between a point-to-point microwave system and a TDM/TDMA wireless communications system in a common geographical area is described. Each transmitter/receiver in the point-to-point microwave system transmits, in addition to its normal information signal, a beacon signal which is uniquely associated with the receiver receive frequency. In selecting uplink and downlink frequencies for port assignment, each port monitors the beacon frequencies and selects as uplink and downlink frequencies, frequencies which associated beacons fall below a predetermined threshold. Similarly, before accessing the wireless communications system through a selected port, a portable monitors the beacons associated with the selected port's uplink frequency. If the beacon associated with the uplink frequency exceeds a threshold, the portable selects an alternate port through which to access the network. Also, during a call an emergency link transfer to another port is made if the monitored beacon corresponding to the portable's uplink frequency rises above the threshold.

REFERENCES:
patent: 4849991 (1989-07-01), Arnold et al.
patent: 4937841 (1990-06-01), Chuang et al.
patent: 4941155 (1990-07-01), Chuang et al.
patent: 5084891 (1992-01-01), Ariyavisitakul et al.
patent: 5148548 (1992-09-01), Meche et al.
patent: 5155742 (1992-10-01), Ariyavisitakul et al.
patent: 5177769 (1993-01-01), Arnold et al.
patent: 5212831 (1993-05-01), Chuang et al.
patent: 5222101 (1993-06-01), Ariyavisitakul et al.
patent: 5226045 (1993-07-01), Chuang
patent: 5258981 (1993-11-01), Davey et al.
patent: 5319796 (1994-06-01), Grube et al.
Cox, Portable Digital Radio Communications -An Approach to Tetherless Access, IEEE Communications Magazine, vol. 27, No. 7, Jul. 1989, pp. 30-40.
Cox, Universal Digital Portable Radio Communications, Proceedings of the IEEE, vol. 75, No. 4, Apr. 1987, pp. 436-476.

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