发明公开
EP3298854A1 METHOD OF TRIGGERING A LBT RANDOM BACKOFF MECHANISM IN LTE LAA
审中-公开
LTE LAA中触发LBT随机倒退机制的方法
- 专利标题: METHOD OF TRIGGERING A LBT RANDOM BACKOFF MECHANISM IN LTE LAA
- 专利标题(中): LTE LAA中触发LBT随机倒退机制的方法
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申请号: EP16729977.5申请日: 2016-05-12
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公开(公告)号: EP3298854A1公开(公告)日: 2018-03-28
- 发明人: TAO, Tao , LIU, Jianguo , HAN, Feng , MENG, Yan , YE, Sigen , GU, Junrong , WANG, Dandan , SHEN, Gang
- 申请人: Alcatel Lucent
- 申请人地址: Site de Nokia Paris-Saclay Route de Villejust 91620 Nozay FR
- 专利权人: Alcatel Lucent
- 当前专利权人: Alcatel Lucent
- 当前专利权人地址: Site de Nokia Paris-Saclay Route de Villejust 91620 Nozay FR
- 代理机构: DREISS Patentanwälte PartG mbB
- 优先权: CN201510253971 20150518
- 国际公布: WO2016185276 20161124
- 主分类号: H04W74/08
- IPC分类号: H04W74/08
摘要:
The present invention provides a method of triggering a LBT random backoff mechanism in LTE LAA, the method comprising: evaluating a current channel to obtain a first parameter characterizing a congestion state of the current channel; comparing the first parameter with a first threshold to obtain a first comparison result; and adapting a contention window size based on the first comparison result. The method further comprises comparing the first parameter with a second threshold to obtain a second comparison result; and adapting the contention window size based on the second comparison result. The first parameter is a packet error rate metric or a collision metric. The method inventively uses the comparison between a first parameter characterizing a congestion state of the current channel and a predefined threshold to increase or decrease the contention window size correspondingly, such that not only the fairness problem with other Systems, a WiFi System, for example, is guaranteed, the usage efficiency of the communication resource and the performance of the whole wireless communication System will be also enhanced.
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