Method of controlling handoff in cellular mobile radio communica

Details Method of controlling handoff in cellular mobile radio communica Method of controlling handoff in cellular mobile radio communica

1991-01-31

1993-08-24

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Monitoring

455 332, 455 342, 455 523, 455 674, 455 89, 4552262, 379 60, H04Q 700

Patent

active

052396673

ABSTRACT:
When communication is established using a mobile radio terminal, the speed at which the terminal is moving is measured by monitoring the Rayleigh fading of the signal strength. Using this velocity indicative parameter, a threshold level which is used to determine if a handoff is required or not, can be adjusted in a manner which renders the decision process more accurate and minimizes the number of unwarranted handoffs.

REFERENCES:
patent: 3067417 (1962-12-01), Harding
patent: 3906166 (1975-09-01), Cooper et al.
patent: 4670905 (1987-06-01), Sandvos et al.
patent: 4696027 (1987-09-01), Bonta
Lee et al., Digital Communication, 1988, pp. 126-128.
Ralphs, et al., An h.f. Channel Simulator Using a New Raleigh Finding Method, Radio and Electronic Engineer Dec. 1976, pp. 579-587.

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