发明名称 METHOD AND DEVICE TO DETERMINE THE TRANSMISSION POINT IN TIME OF A FIRST TRANSFER IN RELATION TO ANOTHER TRANSFER IN A RADIO MEDIUM
摘要 The invention relates to a method for determining the transmission points in time for an asynchronous transfer of information (speech/data) in relation to a synchronous information transfer so that the asynchronous transmission does not coincide with the synchronous reception. The asynchronous and the synchronous reception take place at short distances (?200m) and the terminals are arranged close to each other and can therefore disturb each other. The frequency band of one terminal is also close to the frequency band of the second terminal. The method involves: storing in the asynchronous terminal the relative times for transmission and reception regarding the synchronous terminal; storing a procedure in the asynchronous terminal, which, during a predetermined time interval before each asynchronous transmission, detects if and when transmission occurs from the synchronous terminal and if the detected signal power exceeds a predetermined threshold value; and if the levels in the previous step exceed the predetermined threshold value, timing the transmission from the asynchronous terminal so that it does not disturb the communication of the synchronous terminal by not coinciding with the reception at the synchronous terminal. A device in the asynchronous terminal for avoiding disturbance of a synchronous terminal closeby is disclosed.
申请公布号 CA2268429(A1) 申请公布日期 1998.04.23
申请号 CA19972268429 申请日期 1997.10.14
申请人 TELEFONAKTIEBOLAGET LM ERICSSON 发明人 AKERBERG, DAG E:SON
分类号 H04J3/00;H04B7/26;H04J3/06;(IPC1-7):H04B7/26 主分类号 H04J3/00
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