发明名称 |
APPARATUS FOR MULTICAST TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS |
摘要 |
<p>Message formats and apparatus are described that serve to reserve access to a communication medium in a multicast system. A first message, a multicast request-to-send message, includes a duration field having information representing the reserved time for a communication medium, a multicast receiver address field, a multicast transmitter address field, a field that identifies the number of slots for a clear-to-send response, and a field that identifies the number slots for a not-clear-to-send response. A second message includes a duration field, and a multicast receive address field. The second message has a format that can be used as one of a clear-to-send message in response to a multicast request-to-send message, a cancel-clear-to-send message that cancels a data transmission after the clear-to-send message is sent, and a not-clear-to-send message in response to the multicast request-to-send message.</p> |
申请公布号 |
WO2009154600(A1) |
申请公布日期 |
2009.12.23 |
申请号 |
WO2008US08073 |
申请日期 |
2008.06.27 |
申请人 |
THOMSON LICENSING;LIU, HANG;MANDREKAR, ISHAN;WU, MINGQUAN;PERUMANAM, RAMKUMAR;MATHUR, SAURABH |
发明人 |
LIU, HANG;MANDREKAR, ISHAN;WU, MINGQUAN;PERUMANAM, RAMKUMAR;MATHUR, SAURABH |
分类号 |
H04W16/14 |
主分类号 |
H04W16/14 |
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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