发明名称 |
Method and apparatus for selecting a transmission mode based upon packet size in a multiple antenna communication system |
摘要 |
A method and apparatus are provided for selecting a transmission mode based upon a length of at least a portion of a packet to be transmitted. A packet is transmitted in a multiple antenna communication system by selecting a transmission mode based on a length of at least a portion of the packet. The transmission mode can indicate a number of antennas or date rate (or both) to be used for the transmission. A transmission mode can also be selected based on, for example, (i) a mode selection table that records an expected transmission time for a packet for each supported transmission mode or (ii) one or more packet length thresholds each having a corresponding transmission mode. ACK (acknowledgment) packets can be transmitted using a predefined transmission mode, such as a SISO mode (or a lower order MIMO mode than the original packet), or based on a predefined relationship between the transmission mode of the original packet and the corresponding transmission mode that should be used to acknowledge the packet.
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申请公布号 |
US2005288062(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20040875157 |
申请日期 |
2004.06.23 |
申请人 |
HAMMERSCHMIDT JOACHIM S;VESCHI JOHN P |
发明人 |
HAMMERSCHMIDT JOACHIM S.;VESCHI JOHN P. |
分类号 |
H04B7/04;H04B7/06;H04L1/00;H04L1/16;H04L27/26;(IPC1-7):H04M1/00 |
主分类号 |
H04B7/04 |
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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