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    • 10. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING A POWER EFFICIENT CELL SEARCH IN A MULTI-CELL WIRELESS COMMUNICATION SYSTEM
    • 用于在多小区无线通信系统中执行功率有效的小区搜索的方法和设备
    • WO2007109220A2
    • 2007-09-27
    • PCT/US2007/006784
    • 2007-03-19
    • INTERDIGITAL TECHNOLOGY CORPORATIONMONFET, FredericDEMIR, AlpaslanRICHARDS, Mark, L.
    • MONFET, FredericDEMIR, AlpaslanRICHARDS, Mark, L.
    • H04B1/707
    • H04B1/7083H04B1/70735H04B2201/70707
    • A method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) having a memory that stores a cell identification list of prioritized previously top-ranked cell identities (IDs) is used to perform the cell search. A primary synchronization code (PSC) correlation peak location on a received signal is selected. A common pilot channel (CPICH) correlation value is determined by non-coherent integration of a local signal created based on a first cell ID on the cell identification list to the received signal. If the CPICH correlation value is greater than a noise threshold, thus indicating that the first cell ID is a newly found cell ID, or if a last cell ID in the cell identification list is reached, an additional determination is made as to whether there is more than one cell ID on the list having the same timing.
    • 公开了一种用于在多小区无线通信系统中执行功率效率小区搜索的方法和设备。 具有存储优先化先前排名最高的小区标识(ID)的小区标识列表的存储器的无线发射/接收单元(WTRU)被用于执行小区搜索。 选择接收信号上的主同步码(PSC)相关峰值位置。 公共导频信道(CPICH)相关值通过基于小区标识列表上的第一小区ID创建的本地信号与接收信号的非相干积分来确定。 如果CPICH相关值大于噪声阈值,从而指示第一小区ID是新发现的小区ID,或者如果达到小区标识列表中的最后一个小区ID,则做出关于是否存在的附加确定 列表中的多个单元ID具有相同的时间。