发明授权
- 专利标题： Arrangement and method for dual mode operation in a communication system terminal
- 专利标题（中）： 通信系统终端中双模操作的布置和方法
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申请号： US11571099申请日： 2004-07-02
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公开(公告)号： US08139540B2公开(公告)日： 2012-03-20
- 发明人: Nadim Khlat , David Myara
- 申请人： Nadim Khlat , David Myara
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 国际申请： PCT/EP2004/007232 WO 20040702
- 国际公布： WO2006/002677 WO 20060112
- 主分类号： H04W36/00
- IPC分类号： H04W36/00 ; H04B7/216
摘要：
An arrangement and method for discontinuous software FDD monitoring during TDD call allows removal of a conventional external notch filter in a dual mode WCDMA and PCS/DCS handset. The WCDMA RX frame is allowed to have a few slots corrupted by the PCS/DCS transmitter noise during DCS transmission, and a scheme is used to recover the required information by not considering the corrupted slots. Due to the fact that during WCDMA FDD RX monitoring, the processing required is performed in stages, and since the information that is measured during a WCDMA frame is repeated in every frame, the scheme of the invention is based on the idea that if a given slot is corrupted in a WCDMA frame, in the next WCDMA frame the slot will be no more corrupted due to the difference in timing between the PCS/DCS transmitter protocol and the WCDMA timing protocol.
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