Title:
METHOD AND DEVICE FOR RADIO SWITCHING CONTROL
Document Type and Number:
Japanese Patent JP3184425
Kind Code:
B2
Abstract:
PURPOSE: To suppress the switching operation regardless of detection of a device fault at the time of detecting the rainfall state by masking a switching trigger to stop the switching to a standby system at the time when the reception side of a current system where the fault occurs and the reception side in the same radio section in the opposite direction detect the rainfall state approximately simultaneously.
CONSTITUTION: A rainfall detection result RDALMa from a rainfall detection means la of a station A is inserted to a main signal as an auxiliary signal by a rainfall detection inserting means 3a and is sent to a station B through a controller CONTa. In the station B, the rainfall detection result RDALMa is separated from the auxiliary signal extracted by a rainfall detection separating means 3b and is applied to a trigger control means 2, and the trigger control means 2 is turned off because a rainfall detection result RDALMn in the low level from a rainfall detection means lb of the station B also is applied to this means. Therefore, the switching trigger sent from a reception equipment RXb is masked by a trigger switching control means 2, and a switching request ALM outputted from the trigger control means 2 goes to the low level, and stations A and B don't start the switching operation.
Inventors:
Eiji Suzuki
Koichi Ono
Yutaka Shinozaki
Shuichi Takemura
Koichi Ono
Yutaka Shinozaki
Shuichi Takemura
Application Number:
JP14146195A
Publication Date:
July 09, 2001
Filing Date:
June 08, 1995
Export Citation:
Assignee:
富士通株式会社
株式会社エヌ・ティ・ティ・ドコモ
株式会社エヌ・ティ・ティ・ドコモ
International Classes:
H04L1/22; H04B1/74; (IPC1-7): H04B1/74
Domestic Patent References:
| JP63187821A | ||||
| JP1232836A |
Attorney, Agent or Firm:
Junichi Yokoyama