Title:
COMMUNICATION RANGE CONTROL METHOD FOR WIRELESS COMMUNICATION UNIT
Document Type and Number:
Japanese Patent JP3640205
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a communication range control method for a wireless communication unit in which zoning of a communication radio wave in a space in a building can be performed depending on a quantity of communication traffic and a wireless communication system can be prevented from getting radio wave interference by repeatedly utilizing frequencies and efficient utilization of the system with a high density can be attained.
SOLUTION: In a building where a relay station 9 of a wireless communication unit is installed to a lower part of a floor 6 or an upper part of a ceiling, the floor or the ceiling opposed to an antenna 9a of the relay station consists of a nonmetal-made panel 6a, and a metal-made panel 6b is places at least to the both sides of the nonmetal-made panel.
Inventors:
Makoto Kokubun
Numata Shigeo
Hirokazu Sato
Katsuhiro Kobayashi
Numata Shigeo
Hirokazu Sato
Katsuhiro Kobayashi
Application Number:
JP2000189305A
Publication Date:
April 20, 2005
Filing Date:
June 23, 2000
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
H01Q19/185; H01Q1/52; H04W16/20; H04W84/12; (IPC1-7): H01Q1/52; H04Q7/36
Domestic Patent References:
| JP11284541A | ||||
| JP11055026A | ||||
| JP7202761A | ||||
| JP2000049488A |
Attorney, Agent or Firm:
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Hiroshi Nagisawa
Akira Yonezawa
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Hiroshi Nagisawa
Akira Yonezawa