Title:
【発明の名称】無線通信システム及び無線通信方法
Document Type and Number:
Japanese Patent JP3323438
Kind Code:
B2
Abstract:
Base station 11 transmits downlink signal A to mobile station 12A with wide directivity and transmits downlink signal B to mobile station 12B with narrow directivity with an overlap with downlink signal A. Despreader 104 of mobile station 12B measures the reception power of downlink signal A and despreader 105 measures the reception power of downlink signal B. The respective reception power measurement results are carried on uplink signal B by frame assembly section 106 and reported to base station 11. Base station 11 determines whether the directivity orientation is matched or not based on the transmission power ratio and reception power ratio and controls the directivity and transmission power of the transmission signal based on the result. Thus, base station 11 precisely determines whether the transmission power and directivity of downlink signal B are accurate or not and modifies the transmission power and directivity.
Inventors:
Katsuhiko Hiramatsu
Application Number:
JP10054798A
Publication Date:
September 09, 2002
Filing Date:
March 27, 1998
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01Q3/26; H04B7/005; H04B7/04; H04B7/06; H04B7/10; H04B7/26; H04W16/00; H04W16/28; H04W52/04; H04W52/42; H04W16/24; (IPC1-7): H04B7/26; H01Q3/26; H04Q7/36
Domestic Patent References:
| JP9200115A | ||||
| JP8167871A |
Attorney, Agent or Firm:
Koichi Washida