Title:
BASE STATION TRANSMISSION POWER CONTROL METHOD AND DEVICE FOR CDMA MOBILE COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3129285
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the deterioration of outgoing speech quality generated when a desired power can not be transmitted by a mobile station by setting the value obtained by decreasing each desired transmission power and present set transmission power by using a power reduction ratio as a new transmission power when a base station total transmission power is larger than the prescribed maximum total transmission power.
SOLUTION: The information of a transmission power set by each communication channel transmitting part 101 is outputted to a total transmission power calculating part 103. The calculating part 103 calculates the total transmission power of communication channels 1-N, and outputs the result. A comparator 104 compares this total transmission power with the preliminarily normalized maximum total transmission power, and communicates the result to a reduction ratio calculating part 105. A reduction ratio calculating part 105 calculates a power reduction ratio from the compared result or the like, and communicates it to a transmission power deciding part 106. The transmission power deciding part 106 calculates a transmission power by using quality information communicated from a quality judging part 112 and the power reduction ratio, and communicates it to the transmitting part 101.
Inventors:
Yuki Mimura
Application Number:
JP12771498A
Publication Date:
January 29, 2001
Filing Date:
May 11, 1998
Export Citation:
Assignee:
NEC
International Classes:
H04W52/04; H04B1/04; H04B7/26; H04J13/00; H04W52/34; H04W52/36; (IPC1-7): H04B7/26; H04B1/04; H04J13/00
Domestic Patent References:
| JP936801A |
Attorney, Agent or Firm:
Masaru Watanabe (3 outside)