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    • 2. 发明申请
    • TAE/FAE Compensation for Antenna Ports in CoMP Transmission
    • 天线端口在CoMP传输中的TAE / FAE补偿
    • US20140192921A1
    • 2014-07-10
    • US14238344
    • 2011-12-27
    • Hai WangYang HuShaohua LiJianfeng Wang
    • Hai WangYang HuShaohua LiJianfeng Wang
    • H04L27/26
    • H04L27/2646H04B7/063H04B7/0632H04B7/0639H04L1/0026H04L1/06H04L1/20H04L2001/0092
    • The present invention discloses a user equipment (UE) (100), comprising: a first measuring unit (110) adapted to measure time alignment error (TAE) and/or frequency alignment error (FAE) for antenna ports belonging to transmission point devices in Coordinated Multipoint Transmission (CoMP), the TAE including internal TAE and/or external TAE; and a first feedback unit (120) adapted to feedback the measured internal TAE, and/or external TAE, and/or FAE to at least one of the transmission point devices. The present invention provides a simple, direct and efficient approach for measuring and feeding back the cell-specific internal TAE and/or the UE-specific external TAE/FAE by UE and compensating the TAE/FAE by the transmission point device in the CoMP transmission, so that the CoMP transmission can properly operate.
    • 本发明公开了一种用户设备(UE)(100),包括:第一测量单元(110),适于测量属于传输点设备的天线端口的时间对准误差(TAE)和/或频率对准误差(FAE) 协调多点传输(CoMP),TAE包括内部TAE和/或外部TAE; 以及适于将测量的内部TAE和/或外部TAE和/或FAE反馈到至少一个传输点设备的第一反馈单元(120)。 本发明提供了一种用于测量和反馈UE的小区特定内部TAE和/或UE专用外部TAE / FAE并且在CoMP传输中由传输点设备补偿TAE / FAE的简单,直接和有效的方法 ,以便CoMP传输可以正常工作。
    • 3. 发明授权
    • Methods and devices for determining a transmission rank
    • 用于确定传输等级的方法和设备
    • US08654816B2
    • 2014-02-18
    • US13375927
    • 2011-10-18
    • Haochuan ZhangYang HuShaohua LiXinghua SongJianfeng Wang
    • Haochuan ZhangYang HuShaohua LiXinghua SongJianfeng Wang
    • H04B1/00
    • H04L25/0248H04L5/0023H04L25/0204H04L25/03343H04L2025/03426H04L2025/03808
    • The invention relates to a method 20 in a base station 2 for determining a transmission rank. The base station 2 controls two or more transmit antenna ports 3a, 3b for supporting a multi-antenna transmission mode and for transmission of data on a channel for communication with a user equipment 4. The method 20 comprises receiving 21 a rank indicator from a user equipment 4, the rank indicator indicating the number of spatial multiplexing layers recommended by the user equipment 4, and determining 22 the transmission rank based on a channel imbalance factor CIF, wherein the channel imbalance factor CIF quantifies a difference in receive power of the two or more transmit antenna ports 3a, 3b. The invention also relates to a base station, methods in user equipment, user equipment, computer programs, and computer program products.
    • 本发明涉及基站2中用于确定传输等级的方法20。 基站2控制用于支持多天线传输模式的两个或更多个发射天线端口3a,3b,以及用于在与用户设备4通信的信道上传输数据。方法20包括从用户接收21等级指示符 设备4,表示用户设备4推荐的空间复用层的数量的等级指示符,以及基于信道不平衡因子CIF确定22的传输等级,其中,信道不平衡因子CIF量化两者的接收功率的差异 更多的发射天线端口3a,3b。 本发明还涉及基站,用户设备中的方法,用户设备,计算机程序和计算机程序产品。
    • 4. 发明授权
    • Base station, user equipment, and methods therein in a communications system
    • 通信系统中的基站,用户设备和方法
    • US08953475B2
    • 2015-02-10
    • US13496445
    • 2012-01-30
    • Shaohua LiYang HuJianfeng Wang
    • Shaohua LiYang HuJianfeng Wang
    • H04L12/26
    • H04L5/0053H04B7/0626H04J11/0023H04L25/0228H04W24/08H04W52/241H04W52/245
    • A method in a first base station for obtaining channel state information from a user equipment is provided. The first base station is comprised in a wireless communication system. The wireless communication system further comprises the user equipment. The first base station estimates (403) a first offset value for a first set of subframes based on a first channel information. The first base station further estimates (404) a second offset value for a second set of subframes based on a second channel information. The first base station transmits (405) the estimated first offset value and the estimated second offset value to the user equipment. The first base station then obtains (407) channel state information from the user equipment. The channel state information is based on the transmitted estimated first offset value and the estimated second offset value. The channel state information is to be used for transmission in the first base station.
    • 提供了一种用于从用户设备获取信道状态信息的第一基站中的方法。 第一基站包括在无线通信系统中。 无线通信系统还包括用户设备。 第一基站基于第一信道信息估计(403)第一组子帧的第一偏移值。 基于第二信道信息,第一基站进一步估计(404)第二组子帧的第二偏移值。 第一基站向用户设备发送(405)估计的第一偏移值和估计的第二偏移值。 第一基站然后从用户设备获得(407)信道状态信息。 信道状态信息基于发送的估计的第一偏移值和估计的第二偏移值。 信道状态信息用于第一基站中的传输。
    • 5. 发明申请
    • Base Station, User Equipment, and Methods therein in a Communications System
    • 基站,用户设备和方法
    • US20130194940A1
    • 2013-08-01
    • US13496445
    • 2012-01-30
    • Shaohua LiYang HuJianfeng Wang
    • Shaohua LiYang HuJianfeng Wang
    • H04W24/00
    • H04L5/0053H04B7/0626H04J11/0023H04L25/0228H04W24/08H04W52/241H04W52/245
    • A method in a first base station for obtaining channel state information from a user equipment is provided. The first base station is comprised in a wireless communication system. The wireless communication system further comprises the user equipment. The first base station estimates (403) a first offset value for a first set of subframes based on a first channel information. The first base station further estimates (404) a second offset value for a second set of subframes based on a second channel information. The first base station transmits (405) the estimated first offset value and the estimated second offset value to the user equipment. The first base station then obtains (407) channel state information from the user equipment. The channel state information is based on the transmitted estimated first offset value and the estimated second offset value. The channel state information is to be used for transmission in the first base station.
    • 提供了一种用于从用户设备获取信道状态信息的第一基站中的方法。 第一基站包括在无线通信系统中。 无线通信系统还包括用户设备。 第一基站基于第一信道信息估计(403)第一组子帧的第一偏移值。 基于第二信道信息,第一基站进一步估计(404)第二组子帧的第二偏移值。 第一基站向用户设备发送(405)估计的第一偏移值和估计的第二偏移值。 第一基站然后从用户设备获得(407)信道状态信息。 信道状态信息基于发送的估计的第一偏移值和估计的第二偏移值。 信道状态信息用于第一基站中的传输。
    • 10. 发明申请
    • Multi-User Scheduling Involving Retransmission
    • 涉及重传的多用户调度
    • US20130107731A1
    • 2013-05-02
    • US13377187
    • 2011-10-27
    • Yang HuShaohua LiXinghua SongHaochuan Zhang
    • Yang HuShaohua LiXinghua SongHaochuan Zhang
    • H04W72/10H04W24/00
    • H04L1/0035H04L1/1812H04L1/1887H04W52/48H04W72/1226
    • The present invention discloses a network node (100) for multi-user scheduling involving retransmission. The network node comprises a receiver (110) adapted to receive channel quality indicator (CQI) report from a user equipment (UE), an adjuster (120) adapted to adjust signal to interference and noise ratio (SINR) derived from the CQI report to obtain SINR for retransmission, a combiner (130) adapted to combine SINR for initial transmission and SINR for one or a plurality of retransmission to obtain effective SINR, and a scheduler (140) adapted to perform multi-user scheduling on the basis of priority metric derived from the effective SINR. The present invention improves multi-user scheduling by taking HARQ combining gain into account. Instantaneous throughput as well as priority metric can be accurately measured, because SINR from not only channel quality (e.g. CQI) but also HARQ processing gain are both included.
    • 本发明公开了一种用于涉及重传的多用户调度的网络节点(100)。 网络节点包括适于从用户设备(UE)接收信道质量指示符(CQI)报告的接收机(110),适于调整从CQI报告导出的信噪比和噪声比(SINR)的调整器(120) 获取用于重传的SINR,适于组合用于初始传输的SINR和用于一次或多次重发的SINR以获得有效SINR的组合器(130),以及适于基于优先级度量进行多用户调度的调度器(140) 源自有效的SINR。 本发明通过考虑HARQ组合增益来改进多用户调度。 由于不仅包括信道质量(例如CQI)的SINR,还包括HARQ处理增益,因此可以精确地测量瞬时吞吐量以及优先级度量。