发明公开
EP1938524A1 COMPATIBLE BROADCAST DOWNLINK AND UNICAST UPLINK INTERFERENCE REDUCTION FOR A WIRELESS COMMUNICATION SYSTEM 有权
兼容广播下来,距离单播上行链路干扰减少用于无线通信系统

  • 专利标题: COMPATIBLE BROADCAST DOWNLINK AND UNICAST UPLINK INTERFERENCE REDUCTION FOR A WIRELESS COMMUNICATION SYSTEM
  • 专利标题(中): 兼容广播下来,距离单播上行链路干扰减少用于无线通信系统
  • 申请号: EP06792532.1
    申请日: 2006-07-20
  • 公开(公告)号: EP1938524A1
    公开(公告)日: 2008-07-02
  • 发明人: MARTIN, Beale
  • 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: US209281 20050823
  • 国际公布: WO2007023045 20070301
  • 主分类号: H04L12/56
  • IPC分类号: H04L12/56 H04Q7/38
COMPATIBLE BROADCAST DOWNLINK AND UNICAST UPLINK INTERFERENCE REDUCTION FOR A WIRELESS COMMUNICATION SYSTEM
摘要:
Embodiments of the current invention reduce interference from a mobile station (UE) uplink transmission to a received broadcast downlink transmission through a network-based scheduling of time-slotted downlink broadcast transmissions, so that they do not occur concurrently with uplink transmissions. The invention allows low cost, low power UEs to be designed and built by use of the following techniques: (i) downlink broadcast transmissions are time-slotted; (ii) UEs operate either in half-duplex mode for transmission and reception of unicast services, or in full duplex mode where additional bandpass or additional highpass filtering can be applied to the DL unicast carrier; (iii) when unicast services are active for a UE, the UE informs the network of the broadcast services that are being decoded; and (iv) the network schedules unicast transmissions, broadcast transmissions, or both unicast and broadcast transmissions such that the uplink unicast transmission to a UE is never time-coincident with the broadcast transmissions to that UE.
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