The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2000
Filed:
Dec. 01, 1997
Hiroya Endo, Tokyo, JP;
Masahiko Yahagi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A transmission power control apparatus capable of reducing interference, in a mobile communication adopting the CDMA system, with other communications by decreasing transmission power in one direction of channel taking communication quality of other channel of direction into account is provided. A reverse channel error rate judgment section for judging a communication quality of the reverse channel by a reverse channel frame error rate detected and a forward channel error rate judgment section for judging a communication quality of the forward channel by a forward channel frame error rate reported by a mobile terminal are provided in the radio base station. The forward channel error rate judgment section, when detected, reports the state of communication degradation of own direction of channel to the reverse channel error rate judgment section which, in turn, controls to instruct the mobile terminal to decrease transmission power of the reverse channel. When communication degradation is detected by the reverse channel error rate judgment section, the state is reported to the forward channel error rate judgment section to control to decrease transmission power of the forward channel.