Title:
INTERFERENCE WAVE DETECTION DEVICE AND METHOD
Document Type and Number:
Japanese Patent JP3241672
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the quality of not only an up link but a down link by making a receiving means receive the interference wave signals only while a transmitting means stops its transmission processing.
SOLUTION: In the idle slot periods of both radio signals which are transmitted to and from a mobile station, a control unit 22a of a controller 22 controls a preamplifier 31, etc., to temporarily stop the radio signals which are transmitted from an inductive transmitting antenna 35. Then a prescribed time is passed, the receiving level of an interference wave signal is detected. Then the unit 22a temporarily stops the radio signals which are transmitted from the antenna 35 and controls a switch 42 to connect a receiving IF part 43 to a mixer 41. The part 43 receives the interference wave signal from the mixer 41 to mix it with the receiving local oscillation signal sent from a 1st synthesizer 23 and converts the frequency of the interference signal into an IF band to detect the receiving level of the interference signal.
Inventors:
Naohito Tomoe
Application Number:
JP34913298A
Publication Date:
December 25, 2001
Filing Date:
December 08, 1998
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04B1/10; H04B1/00; H04B17/00; H04B17/345; H04L1/20; H04W16/02; H04W24/00; H04W88/08; (IPC1-7): H04B1/10; H04B17/00; H04Q7/36; H04Q7/38
Domestic Patent References:
| JP6243613B2 | ||||
| JP523527B2 | ||||
| JP6355819B2 |
Attorney, Agent or Firm:
Hiroaki Tazawa (1 person outside)
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