Base station capable of monitoring occurrence of interference on

Details Base station capable of monitoring occurrence of interference on Base station capable of monitoring occurrence of interference on

1987-05-08

1989-06-06

Lev, Robert

Telephonic communications

Audio message storage, retrieval, or synthesis

379 63, H04M 1100

Patent

active

048378011

ABSTRACT:
In a radio communication network comprising a base station (11) and a plurality of wireless telephone sets (12) each of which is communicable with the base station by the use of a plurality of speech radio waves and a control radio wave, a control wave monitoring circuit (22) is included in the base station to monitor the control radio wave on transmission of an allocated one of the speech radio waves and to determine whether or not interference occurs in the control radio wave due to the transmission. On occurrence of such interference in the control radio wave, the allocated speech radio wave is changed to another speech radio wave under control of a line control portion (15). When the control radio wave is divisible into a down control channel directed from the base station towards the wireless telephone sets and an up control channel directed from the wireless telephone sets to the base station, the control wave monitoring circuit monitors the down control channel. Alternatively, the up control channel may be monitored by the control wave monitoring circuit. Each of the wireless telephone sets may be either a cordless telephone set or a mobile telephone set.

REFERENCES:
patent: 4628152 (1986-09-01), Akerberg
patent: 4656653 (1987-04-01), Oda et al.
patent: 4672657 (1987-06-01), Dershowitz

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