- 专利标题： User equipment, a network node and methods for device discovery in a device-to-device (D2D) communication in a wireless telecommunications network
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申请号： US14427044申请日： 2012-10-01
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公开(公告)号： US09883463B2公开(公告)日： 2018-01-30
- 发明人: Erik Dahlman , Stefan Parkvall , Gabor Fodor , Leif Wilhelmsson , Göran N. Klang
- 申请人： Telefonaktiebolaget L M Ericsson (Publ)
- 申请人地址： SE Stockholm
- 专利权人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- 当前专利权人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- 当前专利权人地址： SE Stockholm
- 代理机构： Sage Patent Group
- 国际申请： PCT/SE2012/051047 WO 20121001
- 国际公布： WO2014/054984 WO 20140410
- 主分类号： H04W24/00
- IPC分类号： H04W24/00 ; H04W52/24 ; H04W8/00 ; H04W52/32 ; H04W52/36 ; H04W52/38 ; H04W52/50 ; H04W48/12 ; H04W52/28 ; H04W88/06 ; H04W88/10
摘要：
A first user equipment transmits a beacon signal to be detected by at least one second user equipment for Device-to-Device, D2D, communication in a wireless telecommunications network. The first user equipment transmits the beacon signal in transmission bursts with a first energy level, where the transmission bursts are transmitted continually over time in order to enable detection of the beacon signal by the at least one second user equipment. The first user equipment then increases the energy of the transmission bursts at one or more intervals to a second energy level such that transmission bursts with the first energy level is alternated with transmission bursts with the second energy level, and such that transmission bursts with the first energy level recur more frequently over time than transmission bursts with a second energy level. A user equipment, a network node and a method in the network node are also provided.
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