发明名称 |
SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR TRANSMISSION OF MBMS DATA |
摘要 |
The present invention is related to a method and system for sending and reducing uplink feedback signaling by a wireless transmit/receive unit (WTRU) related to transmission of multimedia broadcast multicast service (MBMS) data over a high speed downlink packet access (HSDPA) channel. A Node B may pre-allocate a time/frequency region or a common channelization code for the feedback. A triggering criterion for reporting a channel quality indicator (CQI) is set and WTRUs send a CQI to a Node B only if the triggering criterion is satisfied. The triggering criterion may be a current operating CQI value at the Node B, or based on erroneous transport block reception statistics, or a predetermined time period. A feedback reduction method related to ACK/NACK includes the WTRU sending an indication of an average number of transmissions needed to successfully decode the data instead of sending an ACK/NACK for every transmission interval.
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申请公布号 |
US2008045228(A1) |
申请公布日期 |
2008.02.21 |
申请号 |
US20070840755 |
申请日期 |
2007.08.17 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
ZHANG GUODONG;CAVE CHRISTOPHER;LU GUANG;MARINIER PAUL;CHANDRA ARTY;GRANDHI SUDHEER A. |
分类号 |
H04W4/06;H04W74/08 |
主分类号 |
H04W4/06 |
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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