发明名称 |
Method and device for simultaneously recording and presenting radio quality parameters and associated speech |
摘要 |
A system and method in a radio telecommunications network for correlating speech quality over an air interface link with a plurality of radio quality parameters. The system includes a mobile switching center (MSC) for recording uplink radio quality information from the air interface link, a mobile test tool for recording downlink radio quality information from the air interface link, a parser for parsing the radio quality information into the plurality of radio quality parameters, and a memory for storing the parsed radio quality information. A digital audio tape (DAT) recorder or personal computer (PC) is electronically connected to a mobile station for recording a speech conversation from the air interface link simultaneously with the recording of the radio quality information. A DAT-link interface is utilized to interface the DAT recorder with a playback unit and with a synchronizer/controller which synchronizes the stored radio quality information and the stored speech conversation. The radio quality parameters are presented to the operator in graphical form on a visual display while the speech conversation is simultaneously presented to the operator in audio form. The operator enters a subjective evaluation of the speech quality of the speech conversation, and the evaluation is correlated with the radio quality parameters and displayed on the visual display.
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申请公布号 |
US5983185(A) |
申请公布日期 |
1999.11.09 |
申请号 |
US19970948898 |
申请日期 |
1997.10.10 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
CUFFARO, ANGELO;WINGROWICZ, EDWARD |
分类号 |
H04L1/20;H04M3/22;H04W24/00;(IPC1-7):G10L3/00;H04B1/22 |
主分类号 |
H04L1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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