Base station capable of monitoring occurrence of interference on every transmission

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4837801
SERIAL NO

07047792

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION 33-1 SHIBA 5-CHOME MINATO-KU TOKYO JAPANNot Provided

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimura, Yukihiro Tokyo, JP 11 207

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