发明申请
US20090274226A1 SOUNDING CHANNEL BASED FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM
审中-公开
无线通信系统中的基于通道的反馈
- 专利标题: SOUNDING CHANNEL BASED FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM
- 专利标题(中): 无线通信系统中的基于通道的反馈
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申请号: US12420092申请日: 2009-04-08
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公开(公告)号: US20090274226A1公开(公告)日: 2009-11-05
- 发明人: Bishwarup Mondal , Amitabha Ghosh , Fan Wang
- 申请人: Bishwarup Mondal , Amitabha Ghosh , Fan Wang
- 申请人地址: US IL Schaumburg
- 专利权人: MOTOROLA, INC.
- 当前专利权人: MOTOROLA, INC.
- 当前专利权人地址: US IL Schaumburg
- 主分类号: H04L27/28
- IPC分类号: H04L27/28 ; H04B1/00
摘要:
An apparatus and method for providing sounding channel based feedback in an OFDM communication system includes a first step (400) of defining a sounding channel spread out over multiple OFDM symbols within a frame. A next step (402) includes conveying a message to a subscriber station including information about the sounding channel. A next step (404) includes requesting a sounding waveform from the subscriber station. A next step (408) includes sending the sounding waveform from the subscriber station over the multiple OFDM symbols. A next step (410) includes sending a downlink transmission weighted in response to the sounding waveform.
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