Title:
CDMA SYSTEM RADIO BASE STATION EQUIPMENT AND ITS RECEPTION SYSTEM TEST METHOD
Document Type and Number:
Japanese Patent JP3123958
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To conduct a diagnostic test of a reception system consisting of an antenna and a receiver without deteriorating speech quality for a mobile station during communication.
SOLUTION: In a decoding section 209-1 to conduct a test, a switch 208-1-1 is closed and a switch 208-1-2 is interrupted to receive only received data from a receiver 206-1 of a tested reception system 204-1. A test signal from a test-use mobile station 202 is given to reception systems 204-1, 204-2 via a distributer 203. Only received data frequency-converted by the tested reception system are given to the decoding section 209-1 depending on the connection state of the switches and decoded at a maximum ratio. In the case that the decoding data are coincident with the test signal, it is discriminated that the tested reception system is normal. During the test, a switch 208-2-1 and a switch 208-2-2 are closed, and since a decoding section 209-2 for a general call applies maximum ratio synthesis decoding to received data from all the reception systems, speech quality is not deteriorated.
Inventors:
Katsuyoshi Okada
Application Number:
JP29736397A
Publication Date:
January 15, 2001
Filing Date:
October 29, 1997
Export Citation:
Assignee:
Saitama NEC Corporation
International Classes:
H04B7/26; (IPC1-7): H04B7/26
Domestic Patent References:
| JP6291739A | ||||
| JP638263A | ||||
| JP6152561A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)
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