公开(公告)号：US20150256302A1

公开(公告)日：2015-09-10

申请号：US14432637

申请日：2012-10-06

申请人： Xinghua SONG ,  Shaohua LI ,  TELEFONAKTIEBOLAGET L M ERICSSON

发明人： Xinghua Song ,  Shaohua Li

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04J11/00

CPC分类号： H04L5/005 ,  H04J11/0036 ,  H04J11/005 ,  H04J11/0053 ,  H04L5/0035 ,  H04L5/0053 ,  H04W72/042

摘要： According to the disclosure, there is provided a method for the UE to mitigate Cell-specific Reference Signal (CRS) interference (not only the other interference cells' CRS interference but also the serving cell's CRS interference) during ePDCCH/PDSCH demodulation. In one non-limiting embodiment, a CRS interference mitigation method may include steps of: determining CRS having been configured is not serving cell's CRS; and mitigating interference originating from the serving cell's CRS by referring to serving cell's CRS configuration. The present disclosure also relates to a UE for implementing the above CRS interference mitigation method.

摘要翻译： 根据本公开，提供了一种在ePDCCH / PDSCH解调期间UE减轻小区特定参考信号（CRS）干扰（不仅其他干扰小区的CRS干扰，而且服务小区的CRS干扰）的方法。 在一个非限制性实施例中，CRS干扰减轻方法可以包括以下步骤：确定已经配置的CRS不是服务小区的CRS; 并通过参考服务小区的CRS配置来减轻源自服务小区的CRS的干扰。 本公开还涉及用于实现上述CRS干扰减轻方法的UE。

公开(公告)号：US10411820B2

公开(公告)日：2019-09-10

申请号：US14911070

申请日：2013-08-15

申请人： Telefonaktiebolaget L M Ericsson (publ) ,  Shaohua Li

发明人： Shaohua Li ,  Rui Fan ,  Zhiheng Guo ,  Jinhua Liu ,  Xinghua Song

IPC分类号： H04J3/10 ,  H04L25/02 ,  H04B1/48 ,  H04W72/08 ,  H04J11/00

摘要： The present disclosure relates to methods, a user equipment and a radio network node for interference mitigation in a dynamic TDD system comprising a user equipment (201, 700), a serving base station (202) serving the user equipment (201, 700), at least one neighboring base station (203) and at least one neighboring user equipment (204) served by the at least neighboring base station (203). The method comprises obtaining (S301) link direction information and at least one transmission parameter, wherein the link direction information and the at least one transmission parameter are associated with downlink transmission of the at least one neighboring base station (203) or uplink transmission of the at least one neighboring user equipment (204). The method further comprises mitigating (S302) interference caused by the downlink transmission or uplink transmission based upon the link direction information and the at least one transmission parameter. The methods, user equipment and radio network node of the present disclosure may overcome or alleviate the interference issues in the dynamic TDD system and give quality and efficiency of the wireless communication a big boost.

公开(公告)号：US20160197690A1

公开(公告)日：2016-07-07

申请号：US14911070

申请日：2013-08-15

申请人： Shaohua LI ,  TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Shaohua Li ,  Rui FAN ,  Zhiheng GUO ,  Jinhua LIU ,  Xinghua SONG

IPC分类号： H04J3/10 ,  H04B1/48 ,  H04W72/08

CPC分类号： H04J3/10 ,  H04B1/48 ,  H04B2001/485 ,  H04J11/0056 ,  H04J11/0059 ,  H04L25/0224 ,  H04W72/082

摘要： The present disclosure relates to methods, a user equipment and a radio network node for interference mitigation in a dynamic TDD system comprising a user equipment (201, 700), a serving base station (202) serving the user equipment (201, 700), at least one neighboring base station (203) and at least one neighboring user equipment (204) served by the at least neighboring base station (203). The method comprises obtaining (S301) link direction information and at least one transmission parameter, wherein the link direction information and the at least one transmission parameter are associated with downlink transmission of the at least one neighboring base station (203) or uplink transmission of the at least one neighboring user equipment (204). The method further comprises mitigating (S302) interference caused by the downlink transmission or uplink transmission based upon the link direction information and the at least one transmission parameter. The methods, user equipment and radio network node of the present disclosure may overcome or alleviate the interference issues in the dynamic TDD system and give quality and efficiency of the wireless communication a big boost.

摘要翻译： 本公开涉及在动态TDD系统中用于干扰减轻的方法，用户设备和无线电网络节点，包括用户设备（201,700），服务于用户设备（201,700）的服务基站（202） 至少一个相邻基站（203）和由所述至少相邻基站（203）服务的至少一个相邻用户设备（204）。 该方法包括获取（S301）链路方向信息和至少一个传输参数，其中链路方向信息和至少一个传输参数与至少一个相邻基站（203）的下行链路传输或 至少一个相邻用户设备（204）。 该方法还包括基于链路方向信息和至少一个传输参数来减轻（S302）由下行链路传输或上行链路传输引起的干扰。 本公开的方法，用户设备和无线电网络节点可以克服或减轻动态TDD系统中的干扰问题，并且提供无线通信的质量和效率大大提高。

公开(公告)号：US09584272B2

公开(公告)日：2017-02-28

申请号：US13817665

申请日：2012-11-26

申请人： Shaohua Li ,  Zhiheng Guo ,  Jinhua Liu ,  Xinghua Song ,  Zhan Zhang

发明人： Shaohua Li ,  Zhiheng Guo ,  Jinhua Liu ,  Xinghua Song ,  Zhan Zhang

IPC分类号： H04L5/00 ,  H04W24/08 ,  H04W52/24 ,  H04B17/345 ,  H04W72/04 ,  H04W52/14

CPC分类号： H04B17/345 ,  H04L5/0032 ,  H04W24/08 ,  H04W52/143 ,  H04W52/241 ,  H04W52/243 ,  H04W72/0446

摘要： A first radio network node (110) and a method therein for measuring interference as well as a second radio network node (120) and a method therein for enabling the first radio network node to measure interference are disclosed. The first radio network node (110) obtains (201) configuration information for indicating a designated subframe in which a reference signal for measurement of the interference is to be transmitted by the second radio network node (120). The second radio network node (120) obtains (202) configuration information for configuring a designed subframe for transmission of a reference signal. The first radio network node (110) receives (205), in the designated subframe indicated by the configuration information, the reference signal transmitted by the second radio network node (120). The first radio network node (110) determines (206) a value of the interference based on the reference signal.

摘要翻译： 公开了一种用于测量干扰的第一无线电网络节点（110）及其中的方法以及第二无线电网络节点（120）及其中的方法，使第一无线电网络节点能够测量干扰。 第一无线网络节点（110）获取（201）用于指示由第二无线电网络节点（120）发送用于测量干扰的参考信号的指定子帧的配置信息。 第二无线电网络节点（120）获得用于配置用于发送参考信号的设计子帧的配置信息（202）。 第一无线电网络节点（110）在由配置信息指示的指定子帧中接收由第二无线电网络节点（120）发送的参考信号（205）。 第一无线电网络节点（110）基于参考信号确定（206）干扰的值。

公开(公告)号：US20140211656A1

公开(公告)日：2014-07-31

申请号：US14342933

申请日：2012-09-05

申请人： Yang Hu ,  Shaohua Li ,  Xinghua Song

发明人： Yang Hu ,  Shaohua Li ,  Xinghua Song

IPC分类号： H04W24/02 ,  H04W24/10

CPC分类号： H04W36/0083 ,  H04B7/024 ,  H04B7/063 ,  H04B17/318

摘要： Devices and methods for improving performance in a network with geographically separated antenna ports based on determining arid reporting reference signal power from a communication device to a base station are provided. In one aspect, the difference between received reference signal power values is used in determining a reported reference signal power value, such as reference signal received power (RSRP) in a Multiple-Input Multiple-Output (MIMO) network including geographically separated antenna ports transmitting on cell-specific reference signal (CBS) ports 0 and 1. Devices and methods for measuring and reporting per-port reference signal power values are provided.

摘要翻译： 提供了用于基于确定从通信设备到基站的参考信号功率的确定来提高具有地理上分离的天线端口的网络中的性能的设备和方法。 在一个方面，接收到的参考信号功率值之间的差异被用于确定报告的参考信号功率值，诸如多输入多输出（MIMO）网络中的参考信号接收功率（RSRP），包括地理上分开的天线端口发射 提供单元特定参考信号（CBS）端口0和1.用于测量和报告每端口参考信号功率值的设备和方法。

公开(公告)号：US08654816B2

公开(公告)日：2014-02-18

申请号：US13375927

申请日：2011-10-18

申请人： Haochuan Zhang ,  Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Jianfeng Wang

发明人： Haochuan Zhang ,  Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Jianfeng Wang

IPC分类号： H04B1/00

CPC分类号： H04L25/0248 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20130094543A1

公开(公告)日：2013-04-18

申请号：US13375927

申请日：2011-10-18

申请人： Haochuan Zhang ,  Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Jiangfen Wang

发明人： Haochuan Zhang ,  Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Jiangfen Wang

IPC分类号： H04B1/38

CPC分类号： H04L25/0248 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20130107731A1

公开(公告)日：2013-05-02

申请号：US13377187

申请日：2011-10-27

申请人： Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Haochuan Zhang

发明人： Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Haochuan Zhang

IPC分类号： H04W72/10 ,  H04W24/00

CPC分类号： H04L1/0035 ,  H04L1/1812 ,  H04L1/1887 ,  H04W52/48 ,  H04W72/1226

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20140219113A1

公开(公告)日：2014-08-07

申请号：US13817665

申请日：2012-11-26

申请人： Shaohua Li ,  Zhiheng Guo ,  Jinhua Liu ,  Xinghua Song ,  Zhan Zhang

发明人： Shaohua Li ,  Zhiheng Guo ,  Jinhua Liu ,  Xinghua Song ,  Zhan Zhang

IPC分类号： H04L5/00 ,  H04W24/08

CPC分类号： H04B17/345 ,  H04L5/0032 ,  H04W24/08 ,  H04W52/143 ,  H04W52/241 ,  H04W52/243 ,  H04W72/0446

摘要： A first radio network node (110) and a method therein for measuring interference as well as a second radio network node (120) and a method therein for enabling the first radio network node to measure interference are disclosed. The first radio network node (110) obtains (201) configuration information for indicating a designated subframe in which a reference signal for measurement of the interference is to be transmitted by the second radio network node (120). The second radio network node (120) obtains (202) configuration information for configuring a designed subframe for transmission of a reference signal. The first radio network node (110) receives (205), in the designated subframe indicated by the configuration information, the reference signal transmitted by the second radio network node (120). The first radio network node (110) determines (206) a value of the interference based on the reference signal.

摘要翻译： 公开了一种用于测量干扰的第一无线电网络节点（110）及其中的方法以及第二无线电网络节点（120）及其中的方法，使第一无线电网络节点能够测量干扰。 第一无线网络节点（110）获取（201）用于指示由第二无线电网络节点（120）发送用于测量干扰的参考信号的指定子帧的配置信息。 第二无线电网络节点（120）获得用于配置用于发送参考信号的设计子帧的配置信息（202）。 第一无线电网络节点（110）在由配置信息指示的指定子帧中接收由第二无线电网络节点（120）发送的参考信号（205）。 第一无线电网络节点（110）基于参考信号确定（206）干扰的值。

公开(公告)号：US08665812B2

公开(公告)日：2014-03-04

申请号：US13377187

申请日：2011-10-27

申请人： Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Haochuan Zhang

发明人： Yang Hu ,  Shaohua Li ,  Xinghua Song ,  Haochuan Zhang

IPC分类号： H04W4/00

CPC分类号： H04L1/0035 ,  H04L1/1812 ,  H04L1/1887 ,  H04W52/48 ,  H04W72/1226

摘要： 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.

摘要翻译： 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。