发明公开
EP2255572A1 METHOD AND APPARATUS FOR RADIO LINK FAILURE RECOVERY IN A TELECOMMUNICATION SYSTEM
有权
VERFAHREN UND VORRICHTUNG ZUR FUNKSTRECKEN-AUSFALLBEHEBUNG IN EINEM TELEKOMMUNIKATIONSSYSTEM
- 专利标题: METHOD AND APPARATUS FOR RADIO LINK FAILURE RECOVERY IN A TELECOMMUNICATION SYSTEM
- 专利标题(中): VERFAHREN UND VORRICHTUNG ZUR FUNKSTRECKEN-AUSFALLBEHEBUNG IN EINEM TELEKOMMUNIKATIONSSYSTEM
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申请号: EP09706711.0申请日: 2009-01-16
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公开(公告)号: EP2255572A1公开(公告)日: 2010-12-01
- 发明人: DIMOU, Konstantinos , LINDSTRÖM, Magnus , SÅGFORS, Mats , MILDH, Gunnar , KAZMI, Muhammad
- 申请人: Telefonaktiebolaget LM Ericsson (publ)
- 申请人地址: 164 83 Stockholm SE
- 专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址: 164 83 Stockholm SE
- 代理机构: Kühn, Friedrich Heinrich
- 优先权: US21981 20080118
- 国际公布: WO2009096883 20090806
- 主分类号: H04W36/08
- IPC分类号: H04W36/08 ; H04W36/06 ; H04W36/30
摘要:
The teachings presented herein enable a user terminal to perform a fast recovery from a radio link failure. In one aspect, the improvement in recovery time is achieved by commanding or otherwise causing the user terminal to perform radio link failure (RLF) recovery at a cell that is known to possess the user context, while considering that this cell should yield good radio conditions (if not the best) to the user terminal. A cell may be predefined for use by the user terminal in recovering its radio connection. Based on providing signal strength thresholds to the user terminal, for use in determining whether to use a predefined cell for reconnecting to the network, the user terminal attempts RLF recovery first in the predefined cell. By providing user context to the predefined cell in advance of a recovery attempt by the user terminal, the time for recovery is lessened. Note that the user terminal also may infer which cells are preferred.
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