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    • 3. 发明申请
    • Apparatus, Method and Computer Program Product for Selecting Beam Group and Subset of Beams in Communication System
    • 通信系统中光束组和子集选择的装置,方法和计算机程序产品
    • US20130064129A1
    • 2013-03-14
    • US13698419
    • 2010-06-02
    • Tommi KoivistoTimo RomanMihai EnescuShuang TanHelka-Liina Määttänen
    • Tommi KoivistoTimo RomanMihai EnescuShuang TanHelka-Liina Määttänen
    • H04W24/00
    • H04B7/0621H04B7/0636H04B7/065H04B7/0695
    • An apparatus and method for selecting a beam group and a subset of beams in a communication system are disclosed. The method includes: measuring channel state information (CSI) on a downlink from a base station (920); identifying a selected beam group out of a set of beam groups according to a wideband property of the CSI (930); identifying a selected subset of beams in the selected beam group according to at least one subband (940). Wherein the characteristic of the set of beam groups depends on a transmission rank and the number of beams in the selected subset of beams is equal to the transmission rank. The method further includes: generating encoded feedback information identifying the selected beam group and the selected subset of beams for each subband in a double codebook format (950), transmitting the encoded feedback information to the base station. A computer program product comprising the computer program code which is configured to cause the apparatus to implement above operations is also disclosed.
    • 公开了一种在通信系统中选择波束组和波束子集的装置和方法。 该方法包括:从基站(920)测量下行链路上的信道状态信息(CSI); 根据所述CSI(930)的宽带属性从一组波束组中识别所选择的波束组; 根据至少一个子带(940)识别所选择的波束组中的选定的波束子集。 其中波束组的特性取决于传输等级,并且所选择的波束子集中的波束的数量等于传输等级。 该方法还包括:以双码本格式(950)生成识别所选择的波束组和所选择的每个子带子集的编码反馈信息,将编码的反馈信息发送到基站。 还公开了一种计算机程序产品,其包括被配置为使该设备实现上述操作的计算机程序代码。
    • 5. 发明授权
    • Apparatus, method and computer program product for selecting beam group and subset of beams in communication system
    • 通信系统中选择波束组和波束子集的装置,方法和计算机程序产品
    • US08897254B2
    • 2014-11-25
    • US13698419
    • 2010-06-02
    • Tommi KoivistoTimo RomanMihai EnescuShuang TanHelka-Liina Määttänen
    • Tommi KoivistoTimo RomanMihai EnescuShuang TanHelka-Liina Määttänen
    • H04B7/06
    • H04B7/0621H04B7/0636H04B7/065H04B7/0695
    • An apparatus and method for selecting a beam group and a subset of beams in a communication system are disclosed. The method includes: measuring channel state information (CSI) on a downlink from a base station (920); identifying a selected beam group out of a set of beam groups according to a wideband property of the CSI (930); identifying a selected subset of beams in the selected beam group according to at least one subband (940). Wherein the characteristic of the set of beam groups depends on a transmission rank and the number of beams in the selected subset of beams is equal to the transmission rank. The method further includes: generating encoded feedback information identifying the selected beam group and the selected subset of beams for each subband in a double codebook format (950), transmitting the encoded feedback information to the base station. A computer program product comprising the computer program code which is configured to cause the apparatus to implement above operations is also disclosed.
    • 公开了一种在通信系统中选择波束组和波束子集的装置和方法。 该方法包括:从基站(920)测量下行链路上的信道状态信息(CSI); 根据所述CSI(930)的宽带属性从一组波束组中识别所选择的波束组; 根据至少一个子带(940)识别所选择的波束组中的选定的波束子集。 其中波束组的特性取决于传输等级,并且所选择的波束子集中的波束的数量等于传输等级。 该方法还包括:以双码本格式(950)生成标识所选择的波束组和所选择的每个子带子集的编码反馈信息,将编码的反馈信息发送到基站。 还公开了一种计算机程序产品,其包括被配置为使该设备实现上述操作的计算机程序代码。
    • 10. 发明申请
    • CONTROL CHANNEL CONFIGURATION FOR STAND-ALONE NEW CARRIER TYPE
    • 用于独立新载体类型的控制通道配置
    • US20150280881A1
    • 2015-10-01
    • US14434326
    • 2012-10-10
    • Chunyan GAOErlin ZENGShuang TANNa WEIWei HONGPengfei SUNWei BAILili ZHANG
    • Chunyan GaoErlin ZengShuang TanNa WeiWei HongPengfei SunWei BaiLili Zhang
    • H04L5/00H04W72/04
    • H04L5/0053H04W48/12H04W72/042
    • A user equipment UE determines at least one first set SI of physical resource blocks PRBs, and detects downlink signaling within search spaces of set(s) SI. Through that downlink signaling the UE obtains a configuration for a downlink control channel, and that configuration indicates at least one second set S2 of PRBs and at least one search space specific for the UE which lies within S2. The UE utilizes the obtained configuration to monitor at least some of the search spaces of SI and the at least one search space specific for the UE of S2 for further downlink control signaling. Multiple implementations are detailed for how the UE gets SI. This invention is particularly useful for a configurable ePDCCH region in a stand-alone carrier where the UE is not able to get the new configuration from some other carrier such as a PCell whose configuration does not change.
    • 用户设备UE确定物理资源块PRB的至少一个第一集合SI,并且检测集合SI的搜索空间内的下行链路信令。 通过该下行链路信令,UE获得用于下行链路控制信道的配置,并且该配置指示PRB的至少一个第二组S2和位于S2内的UE特有的至少一个搜索空间。 UE利用所获得的配置来监视SI的搜索空间和针对S2的UE特定的至少一个搜索空间的另外的下行链路控制信令的至少一些。 详细说明了UE如何获取SI的多个实现。 本发明对于独立载波中的可配置ePDCCH区域是特别有用的,其中UE不能从诸如其配置不改变的PCell的其他载体获得新配置。