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    • 5. 发明授权
    • System and method for channel estimation
    • 信道估计的系统和方法
    • US08520781B2
    • 2013-08-27
    • US12846448
    • 2010-07-29
    • Jianfeng WengJason Robert DugganEdgar Filiberto VelezMartin KosakowskiJohn Puthen Panicker
    • Jianfeng WengJason Robert DugganEdgar Filiberto VelezMartin KosakowskiJohn Puthen Panicker
    • H04L1/00
    • H04L25/0232
    • A method for channel estimation includes receiving data at a number of frequency intervals in a frequency band over a number of first time intervals. A first set of channel estimates is determined for each pilot symbol within the data over a second time interval comprising at least one first time interval, and time-direction interpolation is performed to determine a second set of channel estimates for a number of data portions in a frequency interval using the first set of channel estimates. The frequency interval comprises a data portion comprising a pilot symbol. Frequency-direction interpolation is performed to determine a third set of channel estimates for each first time interval. The time-direction interpolation and the frequency-direction interpolation can be performed in reverse order with the channel estimates generated by the frequency-direction interpolation being used as inputs for time-direction interpolation.
    • 用于信道估计的方法包括以多个第一时间间隔在频带中以多个频率间隔接收数据。 在包括至少一个第一时间间隔的第二时间间隔内为数据内的每个导频符号确定第一组信道估计,并且执行时间方向内插以确定多个数据部分的第二组信道估计 使用第一组信道估计的频率间隔。 频率间隔包括包括导频符号的数据部分。 执行频率内插以确定每个第一时间间隔的第三组信道估计。 时间方向插值和频率方向插值可以以相反的顺序进行,频率方向插值产生的信道估计被用作时间插值的输入。
    • 9. 发明授权
    • Method and system for uplink interference management in heterogeneous cellular networks
    • 异构蜂窝网络上行干扰管理方法与系统
    • US09014171B2
    • 2015-04-21
    • US13568587
    • 2012-08-07
    • Jianfeng WengShiguang GuoChandra Sekhar BontuAndrew Mark Earnshaw
    • Jianfeng WengShiguang GuoChandra Sekhar BontuAndrew Mark Earnshaw
    • H04W72/08H04W72/04H04W56/00H04W72/12H04W92/20
    • H04W72/082H04W56/0005H04W56/0015H04W72/04H04W72/12H04W92/20
    • A method, at a first network access device of a heterogeneous network, the method sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receiving an uplink timing control report from the second network access device; transmitting uplink timing control adjustments to the UE; allocating uplink resources for the second network access device to forward uplink information; allocating physical downlink control channel (‘PDCCH’) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE; receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and sending the uplink scheduling information to the UE.
    • 一种方法,在异构网络的第一网络接入设备处,向所述第二网络接入设备发送报告的方法,所述第二网络接入设备指示所述第二网络接入设备附近的用户设备(UE)在所述上行链路中由所述第二网络接入设备 网络接入设备; 从所述第二网络接入设备接收上行链路定时控制报告; 向所述UE发送上行链路定时控制调整; 为第二网络接入设备分配上行链路资源以转发上行链路信息; 分配属于所述第一网络接入设备的物理下行链路控制信道(“PDCCH”)资源,用于向所述UE发送由所述第二网络接入设备提供的上行链路调度信息; 从所述第一网络接入设备处的所述第二网络接入设备接收包括上行链路调度信息的上行链路信息; 并向UE发送上行调度信息。