公开(公告)号：US09179390B2

公开(公告)日：2015-11-03

申请号：US12919639

申请日：2009-01-21

申请人： Qingyu Miao ,  Jiansong Gan ,  Rong Hu ,  Afif Osseiran ,  Zhang Zhang

发明人： Qingyu Miao ,  Jiansong Gan ,  Rong Hu ,  Afif Osseiran ,  Zhang Zhang

IPC分类号： H04L12/28 ,  H04W40/02 ,  H04L12/707

CPC分类号： H04W40/02 ,  H04L45/125 ,  H04L45/22

摘要： A communication unit for use in a wireless communication system in which a transmitting unit is arranged for wireless communication with at least one receiving unit, said network further comprising at least a first and a second relay node arranged to receive a signal from the transmitting unit and forward it to the receiving unit, said node being characterized in that it comprises a processor arranged to perform the following steps: identifying at least a first and a second communication path between the transmitting unit and the receiving unit, at least one of said paths involving the first or the second relay node, calculating a first and a second capacity of at least one hop in the first and second communication path, respectively communicating information related to the first and second capacity to at least one other communication node in the wireless network.

摘要翻译： 一种在无线通信系统中使用的通信单元，其中发送单元被布置用于与至少一个接收单元的无线通信，所述网络还包括至少第一和第二中继节点，被布置为从所述发送单元接收信号， 所述节点的特征在于，其包括被配置为执行以下步骤的处理器：识别所述发送单元和所述接收单元之间的至少第一和第二通信路径，所述至少一个所述路径涉及 第一或第二中继节点，计算第一和第二通信路径中的至少一跳的第一和第二容量，分别将与第一和第二容量相关的信息传送到无线网络中的至少一个其他通信节点。

公开(公告)号：US20100329190A1

公开(公告)日：2010-12-30

申请号：US12919639

申请日：2009-01-21

申请人： Qingyu Miao ,  Jiansong Gan ,  Rong Hu ,  Afif Osseiran ,  Zhang Zhang

发明人： Qingyu Miao ,  Jiansong Gan ,  Rong Hu ,  Afif Osseiran ,  Zhang Zhang

IPC分类号： H04W40/00

CPC分类号： H04W40/02 ,  H04L45/125 ,  H04L45/22

摘要： A communication unit for use in a wireless communication system in which a transmitting unit is arranged for wireless communication with at least one receiving unit, said network further comprising at least a first and a second relay node arranged to receive a signal from the transmitting unit and forward it to the receiving unit, said node being characterized in that it comprises a processor arranged to perform the following steps: identifying at least a first and a second communication path between the transmitting unit and the receiving unit, at least one of said paths involving the first or the second relay node, calculating a first and a second capacity of at least one hop in the first and second communication path, respectively communicating information related to the first and second capacity to at least one other communication node in the wireless network.

摘要翻译： 一种在无线通信系统中使用的通信单元，其中发送单元被布置用于与至少一个接收单元的无线通信，所述网络还包括至少第一和第二中继节点，被布置为从所述发送单元接收信号， 所述节点的特征在于，其包括被配置为执行以下步骤的处理器：识别所述发送单元和所述接收单元之间的至少第一和第二通信路径，所述至少一个所述路径涉及 第一或第二中继节点，计算第一和第二通信路径中的至少一跳的第一和第二容量，分别将与第一和第二容量相关的信息传送到无线网络中的至少一个其他通信节点。

公开(公告)号：US08599952B2

公开(公告)日：2013-12-03

申请号：US13120010

申请日：2008-09-24

申请人： Peter Larsson ,  Jiansong Gan ,  Qingyu Miao

发明人： Peter Larsson ,  Jiansong Gan ,  Qingyu Miao

IPC分类号： H04B7/02

CPC分类号： H04B7/022 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0658 ,  H04B17/318

摘要： Uplink overhead is significantly reduced in a MU-COMP wireless communication network by exploiting the dissimilarity of received signal strength in signals transmitted by geographically distributed transmit antennas, as seen by receiving UEs. Each UE calculates a quantized normalization measure of channel elements for a channel weakly received from a first transmitter to that for a channel strongly received from a second transmitter. The quantized normalization measure may be modeled as a ratio of complex Gaussian variables, and quantized in phase and amplitude by making simplifying assumptions. The ratios are quantized, and transmitted to the network using far fewer bits than would be required to transmit the full channel state information. The network uses the quantized normalization measures to set the transmitter weights.

摘要翻译： MU-COMP无线通信网络中的上行链路开销明显减少，这是通过接收UE所看到的，利用地理分布式发射天线发射的信号中接收信号强度的不相似性。 每个UE计算对于从第一发射机弱接收的信道的信道单元的量化归一化度量，以及对于从第二发射机强烈接收的信道。 量化归一化测量可以通过简化假设来建模为复数高斯变量的比率，并以相位和幅度量化。 这些比率被量化，并且使用比传输全通道状态信息所需的位少得多的比特来传送到网络。 网络使用量化的归一化度量来设置发射机的权重。

公开(公告)号：US20110230224A1

公开(公告)日：2011-09-22

申请号：US13120152

申请日：2008-09-24

申请人： Peter Larsson ,  Qingyu Miao ,  Jiansong Gan

发明人： Peter Larsson ,  Qingyu Miao ,  Jiansong Gan

IPC分类号： H04W72/08

CPC分类号： H04W72/082 ,  H04W4/08 ,  H04W8/24 ,  H04W48/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/06

摘要： User grouping is employed to tradeoff the COMP forward link capacity and required reverse link feedback, which makes the design of COMP practical and flexible. A channel element, such as the large scale fading, is measured for each distributed transmitter and UE pair based on reference signals, and the network receives this information as feedback in the reverse link. The COMP determines a maximum cross interference level αreq that is affordable, based on the available reverse link capacity for feedback. If this maximum cross interference level αreq is exceeded, geographically separate UEs are divided into as few groups as possible, with UEs within each group separated, and the groups are allocated different time/frequency resource blocks. The grouping is done with the constraint that the cross interference does not exceed αreq.

摘要翻译： 用户分组用于权衡COMP前向链路容量和所需的反向链路反馈，这使得COMP的设计实用性和灵活性。 基于参考信号为每个分布式发射机和UE对测量诸如大规模衰落的信道元素，并且网络将该信息作为反向链路中的反馈接收。 COMP基于可用的反向链路容量来确定可承受的最大交叉干扰水平αreq。 如果超过这个最大交叉干扰水平αreq，则将地理上分离的UE划分成尽可能少的组，每个组中的UE分离，并且分配不同的时间/频率资源块。 分组完成的交叉干扰不超过αreq的约束。

公开(公告)号：US20110105170A1

公开(公告)日：2011-05-05

申请号：US13000657

申请日：2008-06-30

申请人： Jiansong Gan ,  Muhammad Ali Kazmi ,  Jingyi Liao ,  Qingyu Miao

发明人： Jiansong Gan ,  Muhammad Ali Kazmi ,  Jingyi Liao ,  Qingyu Miao

IPC分类号： H04B7/00

CPC分类号： H04B7/024 ,  H04W24/02 ,  H04W28/06 ,  H04W92/20

摘要： In a radio network in which multiple base stations can communicate with multiple user terminals in a coordinated way, user terminals may be grouped into groups, each group representing a coordination scheme to be used for user terminals in the group. The groups may be chosen, for example, according to path loss or QoS requirements Preferably there are three groups requiring no coordination, multiuser coherent coordination and single user coherent coordination respectively. Grouping may be done dynamically according to one or more of the following factors: —the terminal's signalling overhead —the affordable processing complexity —the traffic load —the radio conditions. The grouping unit may be placed in one or more base stations or in any other suitable unit in the network.

摘要翻译： 在多台基站能够以多个用户终端协调的方式通信的无线网络中，用户终端可以分成组，每个组表示用于该组中的用户终端的协调方案。 可以例如根据路径损耗或QoS要求来选择组。优选地，有三组不需要协调，多用户一致协调和单用户相干协调。 分组可以根据以下一个或多个因素动态完成： - 终端的信令开销 - 负担得起的处理复杂度 - 业务负载 - 无线电条件。 分组单元可以被放置在网络中的一个或多个基站中或任何其它合适的单元中。

公开(公告)号：US20110064006A1

公开(公告)日：2011-03-17

申请号：US12992322

申请日：2008-07-04

申请人： Jiansong Gan ,  Peter Larsson ,  Qingyu Miao

发明人： Jiansong Gan ,  Peter Larsson ,  Qingyu Miao

IPC分类号： H04B7/14

CPC分类号： H04L1/0001 ,  H04L25/0202 ,  H04L25/03343 ,  H04L2001/0097

摘要： A method is performed by an intermediate device in a wireless network. The method includes estimating a first hop channel state based on a transmission originating from a first device. The method further includes estimating an end-to-end signal-to-noise ratio base on a transmission associated with a second device. The method also includes adapting a filter or an amplifier of the intermediate device based on the first hop channel state and the end-to-end signal-to-noise ratio.

摘要翻译： 一种方法由无线网络中的中间设备执行。 该方法包括基于源自第一设备的传输来估计第一跳信道状态。 该方法还包括基于与第二设备相关联的传输来估计端对端信噪比。 该方法还包括基于第一跳信道状态和端对端信噪比来适配中间设备的滤波器或放大器。

公开(公告)号：US08570889B2

公开(公告)日：2013-10-29

申请号：US12992322

申请日：2008-07-04

申请人： Jiansong Gan ,  Peter Larsson ,  Qingyu Miao

发明人： Jiansong Gan ,  Peter Larsson ,  Qingyu Miao

IPC分类号： H04J1/16 ,  H04B7/208

CPC分类号： H04L1/0001 ,  H04L25/0202 ,  H04L25/03343 ,  H04L2001/0097

摘要： A method is performed by an intermediate device in a wireless network. The method includes estimating a first hop channel state based on a transmission originating from a first device. The method further includes estimating an end-to-end signal-to-noise ratio base on a transmission associated with a second device. The method also includes adapting a filter or an amplifier of the intermediate device based on the first hop channel state and the end-to-end signal-to-noise ratio.

摘要翻译： 一种方法由无线网络中的中间设备执行。 该方法包括基于源自第一设备的传输来估计第一跳信道状态。 该方法还包括基于与第二设备相关联的传输来估计端对端信噪比。 该方法还包括基于第一跳信道状态和端对端信噪比来适配中间设备的滤波器或放大器。

公开(公告)号：US08787214B2

公开(公告)日：2014-07-22

申请号：US13123594

申请日：2010-05-25

申请人： Jiansong Gan ,  Niklas Johansson ,  Yin Liu ,  Qingyu Miao ,  Peter Moberg ,  Hai Wang

发明人： Jiansong Gan ,  Niklas Johansson ,  Yin Liu ,  Qingyu Miao ,  Peter Moberg ,  Hai Wang

IPC分类号： H04B7/00

CPC分类号： H04B7/15557 ,  H04B7/15564

摘要： Method and arrangement in a relay node, for selecting communication mode. The relay node is configured to communicate with a base station via a donor antenna over a first link and to communicate with a user equipment via a coverage antenna over a second link. The method comprises obtaining an isolation value, based on the radio wave isolation between the relay donor antenna and the relay coverage antenna. The obtained isolation value is compared with an isolation threshold level value. The relay node is configured to communicate in full duplex mode if the obtained isolation value exceeds the isolation threshold level value, otherwise in half duplex mode. Information concerning the configured duplex mode of the relay node is transmitted to the base station.Also a method and arrangement in a base station is described.

摘要翻译： 中继节点中的方法和布置，用于选择通信模式。 中继节点被配置为经由第一链路上的施主天线与基站进行通信，并且经由覆盖天线通过第二链路与用户设备进行通信。 该方法包括基于中继供体天线和中继覆盖天线之间的无线电波隔离来获得隔离值。 将获得的隔离值与隔离阈值水平值进行比较。 如果获取的隔离值超过隔离阈值电平值，则中继节点配置为以全双工模式通信，否则为半双工模式。 关于中继节点配置的双工模式的信息被发送到基站。 还描述了基站中的方法和装置。

公开(公告)号：US08725194B2

公开(公告)日：2014-05-13

申请号：US13000657

申请日：2008-06-30

申请人： Jiansong Gan ,  Muhammad Kazmi ,  Jingyi Liao ,  Qingyu Miao

发明人： Jiansong Gan ,  Muhammad Kazmi ,  Jingyi Liao ,  Qingyu Miao

IPC分类号： H04B7/00

CPC分类号： H04B7/024 ,  H04W24/02 ,  H04W28/06 ,  H04W92/20

摘要： In a radio network in which multiple base stations can communicate with multiple user terminals in a coordinated way, user terminals may be grouped into groups, each group representing a coordination scheme to be used for user terminals in the group. The groups may be chosen, for example, according to path loss or QoS requirements Preferably there are three groups requiring no coordination, multiuser coherent coordination and single user coherent coordination respectively. Grouping may be done dynamically according to one or more of the following factors: —the terminal's signalling overhead—the affordable processing complexity—the traffic load—the radio conditions. The grouping unit may be placed in one or more base stations or in any other suitable unit in the network.

摘要翻译： 在多台基站能够以多个用户终端协调的方式通信的无线网络中，用户终端可以分成组，每个组表示用于该组中的用户终端的协调方案。 可以例如根据路径损耗或QoS要求来选择组。优选地，有三组不需要协调，多用户一致协调和单用户相干协调。 可以根据以下一个或多个因素动态地进行分组： - 终端的信令开销 - 负担得起的处理复杂度 - 业务负载 - 无线电条件。 分组单元可以被放置在网络中的一个或多个基站中或任何其它合适的单元中。

公开(公告)号：US08559992B2

公开(公告)日：2013-10-15

申请号：US13120152

申请日：2008-09-24

申请人： Peter Larsson ,  Qingyu Miao ,  Jiansong Gan

发明人： Peter Larsson ,  Qingyu Miao ,  Jiansong Gan

IPC分类号： H04B15/00

CPC分类号： H04W72/082 ,  H04W4/08 ,  H04W8/24 ,  H04W48/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/06

摘要： User grouping is employed to tradeoff the COMP forward link capacity and required reverse link feedback, which makes the design of COMP practical and flexible. A channel element, such as the large scale fading, is measured for each distributed transmitter and UE pair based on reference signals, and the network receives this information as feedback in the reverse link. The COMP determines a maximum cross interference level αreq that is affordable, based on the available reverse link capacity for feedback. If this maximum cross interference level αreq is exceeded, geographically separate UEs are divided into as few groups as possible, with UEs within each group separated, and the groups are allocated different time/frequency resource blocks. The grouping is done with the constraint that the cross interference does not exceed αreq.

摘要翻译： 用户分组用于权衡COMP前向链路容量和所需的反向链路反馈，这使得COMP的设计实用性和灵活性。 基于参考信号为每个分布式发射机和UE对测量诸如大规模衰落的信道元素，并且网络将该信息作为反向链路中的反馈接收。 COMP基于可用的反向链路容量进行反馈，确定了可承受的最大交叉干扰水平alphareq。 如果超过这个最大交叉干扰水平αphareq，则将地理上分离的UE划分成尽可能少的组，每个组中的UE分离，并且分配不同的时间/频率资源块。 分组完成的交叉干扰不超过alphareq的约束。