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    • 4. 发明申请
    • AVOIDING PAGING FAILURE UPON EXPERIENCING INTERFERENCE
    • 避免干扰导致故障
    • WO2012064600A1
    • 2012-05-18
    • PCT/US2011/059324
    • 2011-11-04
    • MOTOROLA MOBILITY, INC.NARASIMHA, MuraliKRISHNAMURTHY, Sandeep, H.KUCHIBHOTLA, RaviNORY, Ravikiran
    • NARASIMHA, MuraliKRISHNAMURTHY, Sandeep, H.KUCHIBHOTLA, RaviNORY, Ravikiran
    • H04W68/02
    • H04W68/02H04W16/16H04W84/045
    • The paging occasioin of a UE can be changed if the UE experiences significant interference in the normal paging occasion. For example, a UE can have a paging occasion in a first subframe. The subframe that corresponds to the paging occasion is typically predetermined. The UE may be camped on a macro cell but be in the coverage of a non-allowed femto cell. In such a situation, the UE may experience interference during its normal paging occasion due to transmissions for the femto cell, and be unable to receive paging messages. Upon determining that it can experience interference, relative to a reference, during its paging occasion, the UE can change its paging occasion to a new subframe. The new subframe for the paging occasion can be a predetermined time offset later than the subframe corresponding to the normal paging occasion. The new subframe for the paging occasion can be chosen so that the likelihood of experiencing interference from the femto cell in the new subframe is low.
    • 如果UE在正常寻呼时机中经历显着的干扰,则可以改变UE的寻呼周期。 例如,UE可以在第一子帧中具有寻呼时机。 与寻呼机会对应的子帧通常是预先确定的。 UE可以驻留在宏小区上,但是在非允许的毫微微小区的覆盖范围内。 在这种情况下,由于毫微微小区的传输,UE在其正常寻呼时机可能会经历干扰,并且不能接收寻呼消息。 在确定它可能经历相对于参考的干扰时,在其寻呼时机期间,UE可以将其寻呼机会改变为新的子帧。 用于寻呼机会的新子帧可以是比对应于正常寻呼时机的子帧晚的预定时间偏移量。 可以选择用于寻呼机会的新子帧,使得经历来自新子帧中的毫微微小区的干扰的可能性较低。
    • 7. 发明申请
    • METHODS FOR CELL SEARCH IN SYNCHRONOUS INTERFERENCE LIMITED CHANNELS
    • 用于在同步干扰有限通道中搜索的方法
    • WO2012092060A1
    • 2012-07-05
    • PCT/US2011/066447
    • 2011-12-21
    • MOTOROLA MOBILITY, INC.KRISHNAMURTHY, Sandeep, H.FRANK, Colin, D.
    • KRISHNAMURTHY, Sandeep, H.FRANK, Colin, D.
    • H04J11/00
    • H04W56/00H04J11/005H04J11/0093H04W36/0083
    • The cell searcher module (CSM) of a wireless communication device detects that the device is in coverage region of an eNB by processing received signal associated with the primary synchronization (PSCH) and secondary synchronization (SSCH) sequences transmitted by the eNB. The wireless device determines whether candidate SCH signals from candidate neighbor cells are synchronous with SCH sequences from the serving cell by implementing one of three methods. In a first method, the CSM generates a joint estimate of the received power of SSCH sequences corresponding to already detected/identified serving cell and a hypothetical neighbor cell. In a second method, the CSM re-constructs SCH sequences corresponding to already detected cells and subtracts the re-constructed SCH sequences from the received signal to obtain a residual signal with reduced serving cell interference. In a third embodiment, the CSM performs a correlation of estimated channel responses to determine whether the neighbor cell is present.
    • 无线通信设备的小区搜索器模块(CSM)通过处理与eNB发送的主同步(PSCH)和次同步(SSCH)序列相关联的接收信号来检测设备在eNB的覆盖区域。 无线设备通过实施三种方法之一来确定来自候选相邻小区的候选SCH信号是否与来自服务小区的SCH序列同步。 在第一种方法中,CSM产生对应于已经检测/识别的服务小区和假想相邻小区的SSCH序列的接收功率的联合估计。 在第二种方法中,CSM重新构建对应于已经检测到的小区的SCH序列,并从接收信号中减去重构的SCH序列,以获得具有减少的服务小区干扰的残留信号。 在第三实施例中,CSM执行估计的信道响应的相关性,以确定相邻小区是否存在。