公开(公告)号：US20120057482A1

公开(公告)日：2012-03-08

申请号：US13227322

申请日：2011-09-07

申请人： Stefan Geirhofer ,  Peter Gaal

发明人： Stefan Geirhofer ,  Peter Gaal

IPC分类号： H04W24/00 ,  H04B7/00

CPC分类号： H04L1/0026 ,  H04B7/0639 ,  H04L1/0029 ,  H04L1/0031 ,  H04L1/0675 ,  H04L2025/03802

摘要： Certain aspects of the present disclosure relate to techniques for generating unified feedback framework for Multi User Multiple Input Multiple Output (MU-MIMO) enhancement based on indication of a preferred precoder pairings.

摘要翻译： 本公开的某些方面涉及基于优选预编码器配对的指示来生成用于多用户多输入多输出（MU-MIMO）增强的统一反馈框架的技术。

公开(公告)号：US20110211595A1

公开(公告)日：2011-09-01

申请号：US13022389

申请日：2011-02-07

申请人： Stefan Geirhofer ,  Tao Luo ,  Ravi Palanki ,  Wanshi Chen ,  Juan Montojo

发明人： Stefan Geirhofer ,  Tao Luo ,  Ravi Palanki ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04J4/00 ,  H04L27/06 ,  H04J1/00

CPC分类号： H04B7/2606 ,  H04B7/155

摘要： Methods, apparatuses, and computer program products are disclosed that facilitate an early decoding of relay signals. A relay receives a signal within a sub-frame from a network. A first and second reference symbol is detected within the sub-frame such that the first reference symbol is detected before the second reference symbol. The signal is then decode based on the first reference symbol.

摘要翻译： 公开了促进中继信号的早期解码的方法，装置和计算机程序产品。 中继器从网络接收子帧内的信号。 在子帧内检测第一和第二参考符号，使得在第二参考符号之前检测到第一参考符号。 该信号然后基于第一个参考符号进行解码。

公开(公告)号：US10517098B2

公开(公告)日：2019-12-24

申请号：US13188146

申请日：2011-07-21

申请人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Jaber Mohammad Borran ,  Aleksandar Damnjanovic

发明人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Jaber Mohammad Borran ,  Aleksandar Damnjanovic

IPC分类号： H04W16/02 ,  H04W72/08 ,  H04W52/24

摘要： Techniques for supporting peer-to-peer (P2P) communication in a wide area network (WAN) are disclosed. In an aspect, interference coordination between P2P devices engaged in P2P communication and WAN devices engaged in WAN communication may be performed based on a network-controlled architecture. For the network-controlled architecture, P2P devices may detect other P2P devices and/or WAN devices and may send measurements (e.g., for pathloss, interference, etc.) for the detected devices to the WAN (e.g., serving base stations). The WAN may perform resource partitioning and/or association for the P2P devices based on the measurements. Association may include selection of P2P communication or WAN communication for a given P2P device. Resource partitioning may include allocation of resources to a group of P2P devices for P2P communication. The WAN may send the results of association and/or resource partitioning to the P2P devices, which may communicate in accordance with the association and/or resource partitioning results.

公开(公告)号：US09673945B2

公开(公告)日：2017-06-06

申请号：US13360348

申请日：2012-01-27

申请人： Stefan Geirhofer ,  Tao Luo ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Kapil Bhattad ,  Tingfang Ji

发明人： Stefan Geirhofer ,  Tao Luo ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Kapil Bhattad ,  Tingfang Ji

IPC分类号： H04W4/00 ,  H04L1/00 ,  H04L5/00 ,  H04L1/06 ,  H04W24/10 ,  H04B7/06 ,  H04L12/26 ,  H04L12/28 ,  H04J3/00 ,  H04W72/00 ,  H04B7/024

CPC分类号： H04L5/0051 ,  H04B7/024 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0687 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/042 ,  H04W84/042

摘要： Certain aspects of the present disclosure provide techniques for implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources. In an aspect, the UE may be instructed to report on specific CSI-RS resource(s) via explicit signaling in the UE grant. Other aspects disclose techniques for implicit CSI-RS resource selection by the UE that require fewer signaling resources. Instead of explicitly signaling CSI-RS resources to the UE, the UE may implicitly select CSI-RS resource for CSI feedback reporting based on information known to the UE, e.g. a subframe on which a reporting request is received. This may reduce the impact of the additional signaling in the UE grant.

公开(公告)号：US09571173B2

公开(公告)日：2017-02-14

申请号：US13210052

申请日：2011-08-15

申请人： Stefan Geirhofer ,  Peter Gaal ,  Juan Montojo

发明人： Stefan Geirhofer ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0417 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0634 ,  H04B7/065

摘要： Methods and apparatus for enforcing codebook properties (e.g., constant modulus and/or finite alphabet) in adaptive and dual-stage codebooks are described. One example method generally includes receiving multiple feedback aspects of a channel for wireless communications determining multiple codewords based on the multiple feedback aspects, determining a final precoding matrix based on the multiple codewords, enforcing at least one codebook property in at least one of the multiple codewords or the final precoding matrix, applying the final precoding matrix to a plurality of spatial streams to form precoded spatial streams, and transmitting the precoded spatial streams. For certain aspects, enforcing the at least one codebook property includes quantizing elements in each of the multiple codewords and/or the final precoding matrix to the nearest value in a finite alphabet or to increase a performance metric.

摘要翻译： 描述了在自适应和双级码本中强制码本属性（例如恒定模数和/或有限字母表）的方法和装置。 一个示例性方法通常包括接收用于基于多个反馈方面确定多个码字的无线通信的信道的多个反馈方面，基于多个码字确定最终预编码矩阵，在多个码字中的至少一个中实施至少一个码本属性 或最终预编码矩阵，将最终预编码矩阵应用于多个空间流以形成预编码的空间流，以及发送预编码的空间流。 对于某些方面，强制执行至少一个码本属性包括在多个码字和/或最终预编码矩阵中的每个中将元素量化到有限字母表中的最接近的值，或者增加性能度量。

公开(公告)号：US09054842B2

公开(公告)日：2015-06-09

申请号：US13372078

申请日：2012-02-13

申请人： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Stefan Geirhofer ,  Tingfang Ji ,  Juan Montojo

发明人： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Stefan Geirhofer ,  Tingfang Ji ,  Juan Montojo

IPC分类号： G01R31/08 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04W48/08 ,  H04W88/08

CPC分类号： H04L5/005 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0051 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03866 ,  H04L25/0391 ,  H04W48/08 ,  H04W88/085

摘要： One aspect of the present disclosure provides various configurations of the macro cell and remote radio heads to allow legacy UEs to function, including mapping CRS ports to physical antenna, configuring CSI-RS transmissions and assisting the new UE in identifying remote radio heads.

摘要翻译： 本公开的一个方面提供了宏小区和远程无线电头的各种配置，以允许传统UE工作，包括将CRS端口映射到物理天线，配置CSI-RS传输并协助新UE识别远程无线电头。

公开(公告)号：US09049695B2

公开(公告)日：2015-06-02

申请号：US13296691

申请日：2011-11-15

申请人： Anastasios Stamoulis ,  Stefan Geirhofer ,  Jaber Mohammad Borran

发明人： Anastasios Stamoulis ,  Stefan Geirhofer ,  Jaber Mohammad Borran

IPC分类号： H04M1/00 ,  H04W76/02

CPC分类号： H04W76/023 ,  H04W76/14

摘要： Techniques are provided for association decisions by a user equipment (UE) or the like. In one example, there is provided a method that may involve discovering a peer UE, and determining a first metric for the peer UE. The method may further involve determining a second metric for a base station in a wireless area network (WAN). The method may further involve deciding whether to associate with the peer UE for peer-to-peer (P2P) communication or with the WAN for communication via the base station based on the first and second metrics. For example, the first metric may be determined based on received power of the peer UE at the first UE, and the second metric may be determined based on received power of the base station at the first UE.

摘要翻译： 为用户设备（UE）等的关联决定提供技术。 在一个示例中，提供了可以涉及发现对等UE并且确定对等UE的第一度量的方法。 该方法还可以包括确定无线区域网络（WAN）中的基站的第二度量。 该方法还可以包括基于第一和第二度量来决定是否与对等UE进行对等（P2P）通信关联，或者与WAN通过基站进行通信。 例如，可以基于第一UE处的对等UE的接收功率来确定第一度量，并且可以基于第一UE处的基站的接收功率来确定第二度量。

公开(公告)号：US08891652B2

公开(公告)日：2014-11-18

申请号：US13167209

申请日：2011-06-23

申请人： Peter Gaal ,  Stefan Geirhofer ,  Juan Montojo

发明人： Peter Gaal ,  Stefan Geirhofer ,  Juan Montojo

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0615 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0658

摘要： Provided is a method of wireless communication which includes selecting a codebook from a plurality of codebooks in accordance with an antenna characteristic, and transmitting an indication of the selected codebook. Each of the plurality of codebooks is associated with one of a plurality of antenna characteristics. In some designs, channel state information is received from a user equipment. The channel state information may be used to determine downlink scheduling and/or precoding. In some designs, the channel state information may include feedback elements associated with different subband granularity. The feedback elements may also indicate a selection of a subset of precoder column vectors and/or a phase offset between two groups of transmit antennas.

摘要翻译： 提供了一种无线通信方法，其包括根据天线特性从多个码本中选择码本，并发送所选码本的指示。 多个码本中的每一个与多个天线特性之一相关联。 在一些设计中，从用户设备接收信道状态信息。 信道状态信息可以用于确定下行链路调度和/或预编码。 在一些设计中，信道状态信息可以包括与不同子带粒度相关联的反馈元件。 反馈元件还可以指示预编码器列向量的子集的选择和/或两组发射天线之间的相位偏移。

公开(公告)号：US20120207043A1

公开(公告)日：2012-08-16

申请号：US13336599

申请日：2011-12-23

申请人： Stefan Geirhofer ,  Tingfang Ji ,  Peter Gaal ,  Tao Luo ,  Wanshi Chen ,  Juan Montojo

发明人： Stefan Geirhofer ,  Tingfang Ji ,  Peter Gaal ,  Tao Luo ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04W24/00

CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/0226

摘要： Aspects disclosed herein relate to channel and interference estimations in a multiple transmission point environment including an eNB and RRHs. In the disclosed aspects, one or more transmission points can signal to a UE to measure channel state conditions based on a first and a second resource pattern. The UE may receive the signaling and perform interference estimation based at least in part on the first resource pattern, and channel estimation based at least in part on the second resource pattern. The UE may generate a channel state report based on the interference and channel estimations, and transmit the channel state report to a transmission point. The eNB may employ the received channel state report in scheduling one or more resources for use by the UE, and may select or adjust network traffic on the first and the second resource pattern, to affect the resulting channel and interference estimation.

摘要翻译： 本文公开的方面涉及包括eNB和RRH在内的多传输点环境中的信道和干扰估计。 在所公开的方面中，一个或多个传输点可以向UE发信号，以基于第一和第二资源模式测量信道状态条件。 UE可以至少部分地基于第一资源模式接收信令并执行干扰估计，以及至少部分地基于第二资源模式来进行信道估计。 UE可以基于干扰和信道估计产生信道状态报告，并将信道状态报告发送到传输点。 eNB可以使用所接收的信道状态报告来调度一个或多个资源供UE使用，并且可以选择或调整第一和第二资源模式上的网络流量，以影响所得到的信道和干扰估计。

公开(公告)号：US20120129562A1

公开(公告)日：2012-05-24

申请号：US13296691

申请日：2011-11-15

申请人： Anastasios Stamoulis ,  Stefan Geirhofer ,  Jaber Mohammad Borran

发明人： Anastasios Stamoulis ,  Stefan Geirhofer ,  Jaber Mohammad Borran

IPC分类号： H04W24/00 ,  H04W72/02

CPC分类号： H04W76/023 ,  H04W76/14

摘要： Techniques are provided for association decisions by a user equipment (UE) or the like. In one example, there is provided a method that may involve discovering a peer UE, and determining a first metric for the peer UE. The method may further involve determining a second metric for a base station in a wireless area network (WAN). The method may further involve deciding whether to associate with the peer UE for peer-to-peer (P2P) communication or with the WAN for communication via the base station based on the first and second metrics. For example, the first metric may be determined based on received power of the peer UE at the first UE, and the second metric may be determined based on received power of the base station at the first UE.

摘要翻译： 为用户设备（UE）等的关联决定提供技术。 在一个示例中，提供了可以涉及发现对等UE并且确定对等UE的第一度量的方法。 该方法还可以包括确定无线区域网络（WAN）中的基站的第二度量。 该方法还可以包括基于第一和第二度量来决定是否与对等UE进行对等（P2P）通信关联，或者与WAN通过基站进行通信。 例如，可以基于第一UE处的对等UE的接收功率来确定第一度量，并且可以基于第一UE处的基站的接收功率来确定第二度量。