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    UPLINK POWER CONTROL IN HETEROGENEOUS NETWORKS
    3.
    发明公开
    UPLINK POWER CONTROL IN HETEROGENEOUS NETWORKS 审中-公开
    UPLINK-LEISTUNGSSTEUERUNG在异味网络

    公开(公告)号：EP3141048A1

    公开(公告)日：2017-03-15

    申请号：EP14723046.0

    申请日：2014-05-06

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： KLOCKAR, Lars ,  SANDBERG, David

    IPC分类号： H04W52/14 ,  H04W52/24

    CPC分类号： H04W52/244 ,  H04W52/12 ,  H04W52/146 ,  H04W52/241 ,  H04W52/267 ,  H04W52/325

    摘要： Methods and apparatus for uplink power control in a communication system with a low power cell neighbouring a macro cell. The low power cell includes a low power node serving a user equipment (UE). The macro cell includes a base station serving one or more other UE(s). The low power node is configured to determine a power offset between the macro cell and the low power cell. The received power spectral density target for the UE calculation is based on the minimum of a first signal strength target for the UE and estimated noise and interference power(s), or a second signal strength target for the UE and the calculated power offset. The uplink power control for the UE is adjusted based on the calculated received power spectral density target. The first signal strength target may be based on the signal-to-interference-plus-noise ratio target for the UE and the second signal strength target may be based on a signal strength derived from a signal-to-noise ratio target for the UE.

    摘要翻译： 具有与宏小区相邻的低功率小区的通信系统中的上行链路功率控制的方法和装置。 低功率小区包括为用户设备（UE）服务的低功率节点。 宏小区包括服务于一个或多个其他UE的基站。 低功率节点被配置为确定宏小区和低功率小区之间的功率偏移。 用于UE计算的接收功率谱密度目标是基于UE的第一信号强度目标的最小值和估计的噪声和干扰功率，或UE的第二信号强度目标和所计算的功率偏移。 基于计算的接收功率谱密度目标来调整UE的上行链路功率控制。 第一信号强度目标可以基于UE的信号与干扰加噪声比目标，并且第二信号强度目标可以基于从UE的信噪比目标导出的信号强度 。