Title:
WIRELESS BASE STATION TEST DEVICE AND ITS TEST METHOD
Document Type and Number:
Japanese Patent JP3479263
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless base station test device that can test a wireless base station using the same frequencies in sectors by each sector without receiving interference from other sectors.
SOLUTION: A test unit 1 has 2-beam antennas 4a-4c that select two beam directions corresponding to sector antennas 5a-5f by each sensor zone resulting from dividing a base station service area. Two each of radiation elements 41a-41f of each beam antenna are connected to a corresponding hybrid circuit in a beam switching unit 20. A control section 11 selects an object hybrid circuit and selects one of its input terminals to receive a transmission wave from a transmission/reception section 12 in order to select a beam direction. Since only one sector antenna exists in the selected beam direction, the test unit 1 can test the sector antenna and a transmitter-receiver by each sector without receiving interference from other sectors.
Inventors:
Katsuya Yoshida
Application Number:
JP2000193051A
Publication Date:
December 15, 2003
Filing Date:
June 27, 2000
Export Citation:
Assignee:
Saitama NEC Corporation
International Classes:
H01Q3/24; H04B7/26; H04B17/00; H04B17/15; H04B17/16; H04B17/21; H04B17/29; H04W16/28; H04W24/00; H04W24/06; (IPC1-7): H01Q3/24; H04B7/26; H04B17/00
Domestic Patent References:
| JP6170826A | ||||
| JP746036A | ||||
| JP10308709A | ||||
| JP10303617A | ||||
| JP5283923A | ||||
| JP2001231068A | ||||
| JP637693A |
Attorney, Agent or Firm:
Masahiko Desk (2 outside)