发明名称 Wireless communication in heterogeneous networks
摘要 Systems, methods, and apparatuses for energy saving in heterogeneous wireless communication networks are provided. The small cell (e.g., pico cell, relay cell, femto cell) may adjust its transmit power based on the requirement of user equipments (UEs) in the cell's coverage. The small cell may detect a UE entering its coverage with or without assistance from the macro cell. An appropriate small cell may be selected to serve the UE based on its traffic load when the UE is located in the coverage of multiple small cells. The small cell may also transmit auxiliary synchronization signals to reduce the association time for the UE.
申请公布号 US9450695(B2) 申请公布日期 2016.09.20
申请号 US201213667838 申请日期 2012.11.02
申请人 BlackBerry Limited 发明人 Zhu Yajun;Cai Zhijun;Freeman David Nigel;Purnadi Rene Waraputra
分类号 H04J11/00;H04W52/38;H04W16/32 主分类号 H04J11/00
代理机构 Fish & Richardson P.C. 代理人 Fish & Richardson P.C.
主权项 1. A method for wireless communication, the method comprising: monitoring, by a user equipment (UE), a cell-specific reference signal (CRS) transmitted in a discontinuous manner by a first base station; sending, to a second base station, a measurement report including a cell identity associated with the CRS when a signal strength or quality of received CRS at the UE is larger than a threshold; receiving, from the second base station, transmit power information associated with the first base station that is different than the second base station, wherein the transmit power information includes information regarding data signal transmit power of the first base station for downlink transmission; wherein the transmit power information is indicated in a downlink configuration message; and receiving data signals from the first base station in accordance with the received transmit power information.
地址 Waterloo, Ontario CA
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