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    • 22. 发明申请
    • METHODS OF MULTIPLE POINT HSDPA TRANSMISSION IN SINGLE OR DIFFERENT FREQUENCIES
    • 单点或不同频率的多点HSDPA传输方法
    • WO2013067405A1
    • 2013-05-10
    • PCT/US2012/063392
    • 2012-11-02
    • INTERDIGITAL PATENT HOLDINGS, INC.
    • CAI, LujingPANI, DianaLEVY, Joseph, S.
    • H04W56/00
    • H04L5/0053H04W56/0045
    • Disclosed herein are methods and systems for uplink control feedback design in relation to the high speed dedicated physical control channel (HS-DPCCH). First uplink data may be transmitted on a HS-DPCCH to a first serving cell and a second serving cell, where the first serving cell may be used as a timing reference cell for the uplink transmission. The first serving cell may be associated with a first NodeB and the second serving cell may be associated with a second NodeB. First downlink data may be received from the first serving cell and second downlink data may be received from the second serving cell. A timing reference for uplink transmission may be changed such that the second serving cell may be used as the timing reference cell. Second uplink data may be transmitted on the HS-DPCCH using the second serving cell as the timing reference cell.
    • 这里公开了与高速专用物理控制信道(HS-DPCCH)相关的上行链路控制反馈设计的方法和系统。 第一上行链路数据可以在HS-DPCCH上发送到第一服务小区和第二服务小区,其中第一服务小区可以用作上行链路传输的定时参考小区。 第一服务小区可以与第一节点B相关联,并且第二服务小区可以与第二节点B相关联。 可以从第一服务小区接收第一下行链路数据,并且可以从第二服务小区接收第二下行链路数据。 可以改变用于上行链路传输的定时参考,使得第二服务小区可以用作定时参考小区。 第二上行链路数据可以使用第二服务小区作为定时参考小区在HS-DPCCH上发送。
    • 23. 发明申请
    • INTERFERENCE CONTROL FOR HETEROGENEOUS NETWORKS
    • 异构网络干扰控制
    • WO2013181542A1
    • 2013-12-05
    • PCT/US2013/043631
    • 2013-05-31
    • INTERDIGITAL PATENT HOLDINGS, INC.
    • CAI, LujingCAVE, ChristopherPANI, DianaPELLETIER, BenoitMARINIER, Paul
    • H04W52/24H04W52/14H04W52/32H04W72/12
    • H04W52/244H04W52/146H04W52/325
    • A wireless communication network may include multiple cells for communicating with a WTRU. One cell may be a macrocell, while another may be a small cell, such as a picocell or a femtocell. Interference control may be performed for controlling communications performed by multiple cells. Inter-cell interference in the downlink and/or uplink may be addressed by time domain resource partitioning. A control channel may be precoded separate from other uplink channels in beamforming. Multiple blank subframes may be included in communications to reduce interference with other communications on the network. Control channel power may be controlled based on WTRU measurements. Transmission power on the control channel may be adjusted based on a difference between a serving cell measurement and a non-serving cell measurement taken at the WTRU.
    • 无线通信网络可以包括用于与WTRU通信的多个小区。 一个小区可以是宏小区,而另一个小区可以是小小区,例如微微小区或毫微微小区。 可以执行干扰控制以控制由多个小区执行的通信。 下行链路和/或上行链路中的小区间干扰可以通过时域资源划分来解决。 波束成形中的控制信道可以与其他上行链路信道分离。 通信中可能包含多个空白子帧,以减少对网络上其他通信的干扰。 可以基于WTRU测量来控制控制信道功率。 可以基于在WTRU处获取的服务小区测量和非服务小区测量之间的差异来调整控制信道上的传输功率。
    • 25. 发明申请
    • INTERFERENCE MANAGEMENT AND INTERFERENCE ALIGNMENT IN WIRELESS NETWORKS INCLUDING SMALL BASE STATIONS
    • 无线网络中的干扰管理和干扰对齐,包括小型基站
    • WO2014138440A1
    • 2014-09-12
    • PCT/US2014/021323
    • 2014-03-06
    • INTERDIGITAL PATENT HOLDINGS, INC,.
    • NAYEB NAZAR, ShahrokhHAGHIGHAT, AfshinCAI, Lujing
    • H04W72/12
    • H04W72/082H04B7/024H04B7/0452H04B7/0634H04J11/0023H04L5/0073Y02D70/1224Y02D70/1226Y02D70/1242Y02D70/1244Y02D70/1246Y02D70/1262Y02D70/1264Y02D70/142Y02D70/144Y02D70/146Y02D70/164Y02D70/23Y02D70/442Y02D70/444
    • Interference mitigation (e.g., interference suppression and/or interference cancellation) in a wireless communications system may include interference alignment techniques. Interference alignment may be performed to concurrently mitigate the effects of multiple types of interference (e.g., inter-cell interference and intra-cell interference). Interference management using interference alignment may enhance spectral efficiency in an interference- limited communications system, such as a wireless communications system (e.g., a cellular system). Interference alignment techniques may be applied to a homogeneous wireless communications system (e.g., including one or macro base stations). Interference alignment techniques may be applied to a heterogeneous wireless communications system (e.g., including one or macro base stations and one or more overlaid low-power nodes, such as small cells, remote radio heads (RRHs), or the like). The Interference alignment is based on estimating, based upon the measured interference, an interference subspace related to a wireless transceiver unit WTRU. It includes quantizing the estimated interference subspace to a quantization subspace. A feedback report is sent that is indicative of the quantization subspace. Based on interfering signals observed at the WTRU interference mitigation is performed. The interfering signals may be associated with a second and third transmission points, and may be aligned with respect to the quantization subspace.
    • 无线通信系统中的干扰抑制(例如干扰抑制和/或干扰消除)可以包括干扰对准技术。 可以执行干扰对准以同时减轻多种类型的干扰(例如小区间干扰和小区内干扰)的影响。 使用干扰对准的干扰管理可以增强受干扰限制的通信系统(例如无线通信系统(例如,蜂窝系统))中的频谱效率。 干扰对准技术可以应用于均匀无线通信系统(例如,包括一个或多个基站)。 干扰对准技术可以应用于异构无线通信系统(例如,包括一个或多个基站以及一个或多个重叠的低功率节点,例如小小区,远程无线电头(RRH)等)。 干扰对准基于基于测量的干扰估计与无线收发器单元WTRU相关的干扰子空间。 它包括将估计的干扰子空间量化到量化子空间。 发送指示量化子空间的反馈报告。 基于在WTRU干扰抑制下观察到的干扰信号被执行。 干扰信号可以与第二和第三传输点相关联,并且可以相对于量化子空间对准。
    • 26. 发明申请
    • METHOD FOR TRANSMISSION OF AN E-DCH CONTROL CHANNEL IN MIMO OPERATIONS
    • MIMO操作中传输E-DCH控制信道的方法
    • WO2013112805A1
    • 2013-08-01
    • PCT/US2013/023102
    • 2013-01-25
    • INTERDIGITAL PATENT HOLDINGS, INC.
    • PELLETIER, BenoitPANI, DianaCAI, LujingHAMME, Damian, C.LEVY, Joseph, S.TU, Chao-cheng
    • H04B7/04H04B7/06
    • H04W72/04H04B7/0404H04B7/063H04L25/03923
    • Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) to determine rank, offset, or inter-stream interference control information, for example, which may be associated with uplink MIMO operations. A method to control a WTRU may include receiving a special E-RNTI that is associated with a channel. The channel may be associated with a rank indication. The channel may be an E-AGCH-like channel. The channel may have a similar encoding structure as an E-AGCH. The channel may be an E-ROCH. The channel may be received, and it may be determined that the channel is associated with the special E-RNTI. At least one of a rank or an offset may be determined, and the WTRU may be configured with the determined rank or offset. An inter- stream interference (ISI) offset may be received, for example, via RRC signaling, and may be applied to an uplink transmission of a primary stream.
    • 公开了用于无线发射/接收单元(WTRU)的系统,方法和装置,以确定例如可能与上行链路MIMO操作相关联的秩,偏移或流间干扰控制信息。 控制WTRU的方法可以包括接收与信道相关联的特殊E-RNTI。 信道可以与秩指示相关联。 信道可以是类似E-AGCH的信道。 信道可以具有与E-AGCH类似的编码结构。 频道可能是E-ROCH。 可以接收信道,并且可以确定该信道与特殊E-RNTI相关联。 可以确定秩或偏移中的至少一个,并且WTRU可以被配置为具有确定的秩或偏移。 可以例如经由RRC信令接收流间干扰(ISI)偏移,并且可以将其应用于主流的上行链路传输。