发明公开
EP1917727A1 UPLINK RESOURCE ALLOCATION TO CONTROL INTERCELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM
有权
UP一系列资源分配控单元之间的干扰,无线通信系统
- 专利标题: UPLINK RESOURCE ALLOCATION TO CONTROL INTERCELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM
- 专利标题(中): UP一系列资源分配控单元之间的干扰,无线通信系统
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申请号: EP06792531.3申请日: 2006-07-20
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公开(公告)号: EP1917727A1公开(公告)日: 2008-05-07
- 发明人: ANDERSON, Nicholas William
- 申请人: IPWireless, Inc.
- 申请人地址: 1001 Bayhill Drive, 2nd Floor San Bruno, CA 94066 US
- 专利权人: IPWireless, Inc.
- 当前专利权人: IPWireless, Inc.
- 当前专利权人地址: 1001 Bayhill Drive, 2nd Floor San Bruno, CA 94066 US
- 代理机构: Wray, Antony John
- 优先权: US208512 20050822
- 国际公布: WO2007023043 20070301
- 主分类号: H04B7/005
- IPC分类号: H04B7/005
摘要:
Embodiments of the present invention exploit the reciprocity of radio channels in TDD, and longer-term correlation between average uplink and downlink path losses in FDD wireless communication systems to enable distributed schedulers in an enhanced uplink system to allocate uplink transmission resources while preemptively managing intercell interference levels. Each cell's base station transmits a downlink reference signal at a known transmission power level. A mobile station monitors the received signal strength of the downlink reference signals from multiple base stations. The transmitted and received signal strength levels can be used by the mobile station to estimate the amount of intercell interference that the mobile station's uplink transmissions cause, and the mobile station's uplink transmission parameters are adjusted accordingly. In further embodiments, the received reference signal power levels, or values derived therefrom, are transmitted by the mobile station to its serving base station, where a scheduling algorithm uses the information to adjust one or more transmission parameters relating to a grant of uplink transmission resources to the UE, thereby controlling the intercell interference generated by the mobile station's uplink transmissions.
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