Title:
CONTROL SYSTEM FOR BASE STATION COVERAGE AREA
Document Type and Number:
Japanese Patent JP2674404
Kind Code:
B2
Abstract:
PURPOSE: To control the coverage area of the operating frequency in plural base stations using a same frequency.
CONSTITUTION: A 1st base station 1 and a 5th base station 5 are stations sending/receiving a frequency f1 and sending noise of frequencies f2, f3, f4. A 2nd base station 2 and a 6th base station 6 are stations sending/receiving the frequency f2 and sending noise of the frequencies f1, f3, f4. A 3rd base station 3 and a 4th base station 4 are stations sending/receiving the frequencies f3, f4 and sending noise of the frequencies f1, f3, f4. When any of the 1st base station 1-the 6th base station 6 sends noise, the coverage area of the frequency f1 of the 1st base station 1 is a 1st coverage area 7, the coverage area of the frequency f4 of the 4th base station 1 is a 4th coverage area 8, and the coverage area of the frequency f5 of the 5th base station 5 is a 5th coverage area 9.
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Inventors:
Masahiko Yahagi
Application Number:
JP35191591A
Publication Date:
November 12, 1997
Filing Date:
December 13, 1991
Export Citation:
Assignee:
NEC
International Classes:
H04W16/24; (IPC1-7): H04Q7/36
Domestic Patent References:
| JP62190938A |
Attorney, Agent or Firm:
Kihei Watanabe