发明名称 |
Communication system, a repeater terminal in a communication system and a communication method |
摘要 |
This invention provides a communication system, a repeater terminal in the communication system and a communication method for improving the characteristics in a multi-hop communication by a diversity gain and reduces the power consumption by wasteful retransmission in packet transmission at a wireless terminal. When a transmitter terminal S sends a packet first time, repeater terminals R1-R13 perform a data transmission by retransmission at all the terminals which received the packet. When a transmitter terminal S sends a packet second time, a repeater terminal determines its own contribution based on the hop numbers of the repeating in the packet transmission and the return ACK (or NACK) repeating. The repeater terminal with a high contribution autonomously determines to be in “repeater mode” and the repeater terminal with a low contribution autonomously determines to be in “sleep mode”.
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申请公布号 |
US7957334(B2) |
申请公布日期 |
2011.06.07 |
申请号 |
US20060886520 |
申请日期 |
2006.01.20 |
申请人 |
THE UNIVERSITY OF ELECTRO-COMMUNICATIONS |
发明人 |
FUJII TAKEO;KOJIMA ERINA |
分类号 |
H04B7/14;H04J1/10;H04J3/08 |
主分类号 |
H04B7/14 |
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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