公开(公告)号：US09866284B2

公开(公告)日：2018-01-09

申请号：US13510384

申请日：2012-04-26

申请人： Muhammad A. Kazmi ,  Jinhua Liu ,  Qingyu Miao

发明人： Muhammad A. Kazmi ,  Jinhua Liu ,  Qingyu Miao

IPC分类号： H04B7/02 ,  H04W88/06 ,  H04B7/022

CPC分类号： H04B7/022 ,  H04W88/06

摘要： It is presented a method for selecting downlink mode for a UE. The method is executed in a radio network controller, RNC, and comprises the steps of: estimating geometry for the UE; selecting a mode for the UE based on the estimated geometry, the mode being either a multi cell switching mode or a multi cell aggregation mode; and configuring the selected mode for the UE. By using the geometry of the UE for selecting mode, the most appropriate mode in terms of performance, such as capacity. Corresponding methods for an RBS, a UE, along with corresponding RNC, RBS and UE are also presented.

公开(公告)号：US09647744B2

公开(公告)日：2017-05-09

申请号：US14992527

申请日：2016-01-11

申请人： Jinhua Liu ,  Muhammad Kazmi ,  Qingyu Miao

发明人： Jinhua Liu ,  Muhammad Kazmi ,  Qingyu Miao

IPC分类号： H04B7/06 ,  H04W28/18 ,  H04W56/00 ,  H04W52/06 ,  H04W52/22 ,  H04W52/04 ,  H04W88/02 ,  H04W52/08 ,  H04W52/10

CPC分类号： H04B7/0619 ,  H04B7/0617 ,  H04B7/0671 ,  H04B7/0673 ,  H04W28/18 ,  H04W52/04 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/221 ,  H04W56/0065 ,  H04W88/02

摘要： Method and arrangement in a user equipment for adjusting signals transmitted in uplink to a network node, based on a feedback value received from the network node. The method comprises transmitting a signal, to be received by the network node. Further, the method comprises receiving a feedback signal from the network node, providing feedback on the transmitted signal. In addition, the method comprises obtaining a value of a time delay of the received feedback signal. Furthermore, the method comprises adjusting signals transmitted in the uplink according to the received feedback signal, wherein compensation is made for the obtained time delay value of the received feedback signal.

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：US09516668B2

公开(公告)日：2016-12-06

申请号：US14232767

申请日：2012-07-16

申请人： Jinhua Liu ,  Qingyu Miao

发明人： Jinhua Liu ,  Qingyu Miao

IPC分类号： H04L1/00 ,  H04L1/06 ,  H04W72/12 ,  H04W52/34

CPC分类号： H04W72/1268 ,  H04B7/0413 ,  H04L1/0002 ,  H04L1/0033 ,  H04L1/06 ,  H04L5/0048 ,  H04W52/346 ,  H04W52/365

摘要： A method, an apparatus and a system for uplink rank adaptation are provided in the present invention, wherein the method comprises: estimating the maximum supportable data rate and channel information of a user equipment in uplink transmission; comparing the maximum supportable data rate with one or more predetermined thresholds, wherein the predetermined thresholds are associated with corresponding ranks; and determining a rank used by the user equipment in the uplink transmission based on a result of the comparison and the estimated channel information. With the present invention, a base station can quickly determine a rank for uplink MIMO transmission, decrease the rank estimating error, and lower the computation complexity for estimating the rank and the subsequent pre-coding vector.

摘要翻译： 在本发明中提供了一种用于上行排名自适应的方法，装置和系统，其中所述方法包括：在上行传输中估计用户设备的最大可支持数据速率和信道信息; 将所述最大可支持数据速率与一个或多个预定阈值进行比较，其中所述预定阈值与相应等级相关联; 以及基于所述比较的结果和所估计的信道信息来确定所述用户设备在所述上行链路传输中使用的秩。 利用本发明，基站能够快速地确定上行MIMO传输的等级，降低秩估计误差，降低用于估计秩和后续预编码向量的计算复杂度。

公开(公告)号：US09392563B2

公开(公告)日：2016-07-12

申请号：US14372680

申请日：2012-07-16

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

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

IPC分类号： H04J3/06 ,  H04W56/00 ,  H04L5/00 ,  H04J1/06

CPC分类号： H04W56/0015 ,  H04J1/06 ,  H04J3/0617 ,  H04L5/0035 ,  H04W56/0035

摘要： Techniques are disclosed for synchronizing frequency among a cluster of coordinated transmission points cooperating in a coherent joint transmission. In some embodiments, one transmission point is set (510) as a reference transmission point for a group of coordinated transmission points. Each of one or more other transmission points in the group receives (530) a specified downlink reference signal from the reference transmission point, measures (540) its frequency offset relative to the reference point, and compensates (550) the frequency offset in baseband processing or by a radio adjustment. Which transmission point acts as the reference transmission point is statically defined, in some embodiments, or dynamically configured, in others. Likewise, which time-frequency resources are used for the reference signal may be statically defined or dynamically configured. In some embodiments, information identifying the reference transmission point and/or specifying the radio resource locations and durations of the reference signal is distributed to the synchronizing transmission points.

摘要翻译： 公开了用于在协调传输点协作的一组协调传输点中使频率同步的技术。 在一些实施例中，将一个传输点设置为（510）作为一组协调传输点的参考传输点。 组中的一个或多个其他传输点中的每一个从参考传输点接收（530）指定的下行链路参考信号，测量（540）相对于参考点的频率偏移，并补偿（550）基带处理中的频率偏移 或通过无线电调整。 作为参考传送点的哪个传输点在一些实施例中被静态地定义，或者在另一些实施例中被动态配置。 同样地，用于参考信号的哪些时间频率资源可以被静态地定义或动态配置。 在一些实施例中，识别参考传输点和/或指定参考信号的无线电资源位置和持续时间的信息被分配给同步传输点。

公开(公告)号：US20150264692A1

公开(公告)日：2015-09-17

申请号：US14433537

申请日：2012-10-19

申请人： Jinhua Liu ,  Zhiheng Guo ,  Hai Wang

发明人： Jinhua Liu ,  Zhiheng Guo ,  Hai Wang

IPC分类号： H04W72/04 ,  H04W72/08 ,  H04W24/10

CPC分类号： H04W72/0473 ,  H04W24/10 ,  H04W52/146 ,  H04W52/20 ,  H04W52/241 ,  H04W52/262 ,  H04W72/085

摘要： A method of controlling power in a transmitter in communication with a receiver in a wireless communication network is disclosed. The method comprising measuring a value of a first metric of signals received in the receiver, the first metric usable to generate a power control command; determining a measurement error of the first metric; generating the power control command based on the measured value of the first metric if the measurement error of the first metric does not exceed a threshold; and sending the power control command from the receiver to the transmitter.

摘要翻译： 公开了一种控制与无线通信网络中的接收机通信的发射机中的功率的方法。 该方法包括测量在接收机中接收的信号的第一度量值，可用于产生功率控制命令的第一度量; 确定第一度量的测量误差; 如果第一度量的测量误差不超过阈值，则基于第一度量的测量值生成功率控制命令; 并将功率控制命令从接收器发送到发射机。

公开(公告)号：US20150195842A1

公开(公告)日：2015-07-09

申请号：US14410697

申请日：2012-07-06

申请人： Rui Fan ,  Jinhua Liu ,  Chan Li

发明人： Rui Fan ,  Jinhua Liu ,  Chan Li

IPC分类号： H04W72/08 ,  H04W76/04 ,  H04W52/24

CPC分类号： H04W72/082 ,  H04W52/243 ,  H04W72/121 ,  H04W72/1226 ,  H04W76/25

摘要： The present invention relates to an RBS of a wireless network and to a method in the RBS for link adaptation at MU-MIMO scheduling. The method comprises scheduling (410) a first UE in pair with a second UE, and predicting (420) a signal to noise and interference value for each of the first and second UE as paired. The method also comprises using (430) the predicted signal to noise and interference values for performing link adaptation for the first and second UE.

摘要翻译： 本发明涉及无线网络的RBS以及在MU-MIMO调度中用于链路自适应的RBS中的方法。 该方法包括将第一UE与第二UE进行调度（410），并且对成对的第一和第二UE中的每个UE预测（420）信噪比和干扰值。 该方法还包括使用（430）预测信号对噪声和干扰值进行第一和第二UE的链路自适应。

公开(公告)号：US20150189636A1

公开(公告)日：2015-07-02

申请号：US14417495

申请日：2012-08-02

申请人： Jinhua Liu ,  Zhan Zhang

发明人： Jinhua Liu ,  Zhan Zhang

IPC分类号： H04W72/04 ,  H04L5/00

CPC分类号： H04W72/044 ,  H04L5/0035 ,  H04W28/16 ,  H04W72/042 ,  H04W72/0486 ,  H04W72/085

摘要： The embodiments relate to a method and a controlling unit for resource allocation and joint transmission in a cellular communication network. The method includes allocating a first set of frequency resources for transmitting a first set of time slots of data in a subframe, from a first communication node to a User Equipment, UE, and allocating at least one second set of frequency resources for transmitting, at least one second set of time slots of data in the subframe, from at least one second communication node respectively to the UE. The first set of frequency resources is intersected with one of the at least one second set of frequency resources, and union of the first set of time slots of data and the at least one second set of time slots of data is equal to the subframe.

摘要翻译： 实施例涉及用于蜂窝通信网络中的资源分配和联合传输的方法和控制单元。 该方法包括：分配第一组频率资源，用于在子帧中从第一通信节点向用户设备UE发送数据的第一组时隙，以及分配至少一个第二组频率资源，用于在 至少一个第二组子帧中的数据的时隙集合，分别从至少一个第二通信节点到UE。 第一组频率资源与至少一个第二组频率资源中的一个相交，并且数据的第一组时隙与数据的至少一个第二组时隙的并集等于该子帧。

公开(公告)号：US20140369243A1

公开(公告)日：2014-12-18

申请号：US14372680

申请日：2012-07-16

申请人： Zhiheng Guo ,  Shachua Li ,  Jinhua Liu ,  Zhan Zhang

发明人： Zhiheng Guo ,  Shachua Li ,  Jinhua Liu ,  Zhan Zhang

IPC分类号： H04W56/00 ,  H04J3/06 ,  H04J1/06 ,  H04L5/00

CPC分类号： H04W56/0015 ,  H04J1/06 ,  H04J3/0617 ,  H04L5/0035 ,  H04W56/0035

摘要： Techniques are disclosed for synchronizing frequency among a cluster of coordinated transmission points cooperating in a coherent joint transmission. In some embodiments, one transmission point is set (510) as a reference transmission point for a group of coordinated transmission points. Each of one or more other transmission points in the group receives (530) a specified downlink reference signal from the reference transmission point, measures (540) its frequency offset relative to the reference point, and compensates (550) the frequency offset in baseband processing or by a radio adjustment. Which transmission point acts as the reference transmission point is statically defined, in some embodiments, or dynamically configured, in others. Likewise, which time-frequency resources are used for the reference signal may be statically defined or dynamically configured. In some embodiments, information identifying the reference transmission point and/or specifying the radio resource locations and durations of the reference signal is distributed to the synchronizing transmission points.

摘要翻译： 公开了用于在协调传输点协作的一组协调传输点中使频率同步的技术。 在一些实施例中，将一个传输点设置为（510）作为一组协调传输点的参考传输点。 组中的一个或多个其他传输点中的每一个从参考传输点接收（530）指定的下行链路参考信号，测量（540）相对于参考点的频率偏移，并补偿（550）基带处理中的频率偏移 或通过无线电调整。 作为参考传送点的哪个传输点在一些实施例中被静态地定义，或者在另一些实施例中被动态配置。 同样地，用于参考信号的哪些时间频率资源可以被静态地定义或动态配置。 在一些实施例中，识别参考传输点和/或指定参考信号的无线电资源位置和持续时间的信息被分配给同步传输点。

公开(公告)号：US20130336112A1

公开(公告)日：2013-12-19

申请号：US14002672

申请日：2012-01-31

申请人： Jinhua Liu ,  Zhang Zhang

发明人： Jinhua Liu ,  Zhang Zhang

IPC分类号： H04W28/02

CPC分类号： H04W28/0289 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0634 ,  H04W28/08 ,  H04W88/08

摘要： The present invention provides a method of adjusting uplink load variance due to a change of a beam direction turning from towards a current beamforming control cell to towards a target beamforming control cell, comprising: estimating an uplink load increment of the target beamforming control cell due to the change of the beam direction, before the beam direction turning from towards the current beamforming control cell to towards the target beamforming control cell; comparing the estimated uplink load increment with an available uplink load headroom of the target beamforming control cell; and adjusting an uplink load grant of a user equipment if the uplink load increment is larger than the available uplink load headroom, so that an uplink load increment is not beyond the available uplink load headroom, so that the uplink load increment is not beyond the available uplink load headroom.

摘要翻译： 本发明提供了一种由于从朝向当前波束形成控制小区向目标波束形成控制小区转向的波束方向的变化来调整上行链路负载变化的方法，包括：估计由于 在光束方向从当前波束成形控制单元转向朝向目标波束形成控制单元之前，波束方向的变化; 将估计的上行链路负载增量与目标波束形成控制小区的可用上行链路负载余量进行比较; 以及如果所述上行链路负载增量大于所述可用上行链路负载余量，则调整用户设备的上行链路负载许可，使得上行链路负载增量不超过所述可用上行链路负载余量，使得所述上行链路负载增量不超过所述可用 上行负载余量。