Cellular data system

Details Cellular data system Cellular data system

H - Electricity

04

B

325/30

H04B 7/26 (2006.01) H04Q 7/36 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 1297538

Abstract of the Disclosure An improved AMPS cellular system where non- interfering digital communication channels are added to the existing analog or digital voice communications channels in the system by utilizing frequency space between channels made possible by the AMPS co-channel and adjacent channel frequency coordination procedures. Interference is prevented by reduction of power, selection of frequencies, proper modulation and demodulation techniques, and unique allocation to the channels in frequency and location. The system is also applicable in general to the insertion of narrow frequency bandwidth channels in any existing communications system using co-channel and adjacent channel frequency allocation strategies.

611915

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