公开(公告)号：US20110249642A1

公开(公告)日：2011-10-13

申请号：US13084763

申请日：2011-04-12

申请人： Osok Song ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Parag Arun Agashe ,  Jaber Mohammad Borran ,  Madhavan Srinivasan Vajapeyam ,  Stefan Geirhofer

发明人： Osok Song ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Parag Arun Agashe ,  Jaber Mohammad Borran ,  Madhavan Srinivasan Vajapeyam ,  Stefan Geirhofer

IPC分类号： H04W72/08 ,  H04W68/12

CPC分类号： H04W28/16 ,  H04W92/20

摘要： Methods and apparatus for supporting adaptive resource negotiation between evolved node Bs (eNBs) for enhanced inter-cell interference coordination (eICIC) are provided. This resource negotiation may occur via a network backhaul between the eNBs or, in some cases, using over-the-air messages (OAMs). For certain aspects, a first eNB may propose its adaptive resource partitioning information (ARPI) to a second eNB, where the second eNB may accept or reject the proposed resource partitioning. If the second eNB accepts the proposed partitioning, the second eNB may schedule resources, such as subframes, based on the accepted partitioning.

摘要翻译： 提供了用于支持用于增强的小区间干扰协调（eICIC）的演进节点B（eNB）之间的自适应资源协商的方法和装置。 该资源协商可以经由eNB之间的网络回程或者在某些情况下使用空中消息（OAM）来进行。 对于某些方面，第一eNB可以向第二eNB提出其自适应资源划分信息（ARPI），其中第二eNB可以接受或拒绝所提出的资源划分。 如果第二eNB接受所提出的划分，则第二eNB可以基于所接受的分区来调度诸如子帧的资源。

公开(公告)号：US09426703B2

公开(公告)日：2016-08-23

申请号：US13349073

申请日：2012-01-12

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

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

IPC分类号： H04W72/08 ,  H04W36/00 ,  H04L25/02 ,  H04L5/00

CPC分类号： H04W36/0077 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/0226

摘要： A method, an apparatus, and a computer program product for wireless communication are provided for separating control transmissions and data transmissions within the coverage area of a plurality of transmission/reception points or points that are geographically displaced, the plurality of points comprising a macro node and a plurality of remote radio heads (RRHs) coupled to the macro node. Separating control transmissions and data transmissions in the macro node/RRH configuration may allow UEs to be associated with one set of transmission points for data transmissions and the same set or a different set of transmission points for common control signaling. Separating control transmissions and data transmissions may also allow for faster reconfiguration of antenna ports used for UE data transmission compared with reconfiguration via a handover process.

公开(公告)号：US20120044815A1

公开(公告)日：2012-02-23

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 ,  H04W72/04 ,  H04W24/00

CPC分类号： H04W72/082 ,  H04W8/005 ,  H04W52/243 ,  H04W52/383 ,  H04W72/0406 ,  H04W76/14

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.

摘要翻译： 公开了在广域网（WAN）中支持对等（P2P）通信的技术。 在一方面，可以基于网络控制的架构来执行从事P2P通信的P2P设备与从事WAN通信的WAN设备之间的干扰协调。 对于网络控制架构，P2P设备可以检测其他P2P设备和/或WAN设备，并且可以向WAN（例如，服务基站）发送检测到的设备的测量（例如，用于路径损耗，干扰等）。 WAN可以基于测量对P2P设备执行资源划分和/或关联。 关联可以包括针对给定P2P设备的P2P通信或WAN通信的选择。 资源划分可以包括将资源分配给用于P2P通信的一组P2P设备。 WAN可以将关联和/或资源划分的结果发送到可以根据关联和/或资源划分结果进行通信的P2P设备。

公开(公告)号：US20110282989A1

公开(公告)日：2011-11-17

申请号：US13103733

申请日：2011-05-09

申请人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Aleksandar Damnjanovic ,  Parag Arun Agashe

发明人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Aleksandar Damnjanovic ,  Parag Arun Agashe

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04W72/0493 ,  H04L1/00 ,  H04L1/0026 ,  H04L5/1438 ,  H04L67/104 ,  H04W8/005 ,  H04W28/08 ,  H04W28/18 ,  H04W72/02 ,  H04W76/14 ,  H04W84/18 ,  H04W92/18

摘要： Techniques for determining resources to use for peer-to-peer (P2P) communication are disclosed. In an aspect, a network entity may receive feedback information (e.g., resource usage information and/or channel state information) from P2P devices and may perform resource partitioning based on the feedback information to allocate some of the available resources for P2P communication. The allocated resources may observe little or no interference from devices engaged in wide area network (WAN) communication. In another aspect, P2P groups may perform resource negotiation via a WAN connection (e.g., with little or no involvement by the WAN) to assign the allocated resources to different P2P groups. In yet another aspect, a device may autonomously determine whether to communicate with another device directly or via a WAN, e.g., whether to initiate P2P communication with another device and whether to terminate P2P communication. In yet another aspect, a network entity may participate in resource negotiation by P2P devices.

摘要翻译： 公开了用于确定用于对等（P2P）通信的资源的技术。 在一方面，网络实体可以从P2P设备接收反馈信息（例如，资源使用信息和/或信道状态信息），并且可以基于反馈信息来执行资源划分，以分配用于P2P通信的一些可用资源。 分配的资源可能观察到从事广域网（WAN）通信的设备的干扰很小或没有。 在另一方面，P2P组可以经由WAN连接进行资源协商（例如，很少或没有WAN的参与）来将分配的资源分配给不同的P2P组。 在另一方面，设备可以自主地确定是直接地还是经由WAN与另一设备进行通信，例如是否发起与另一设备的P2P通信以及是否终止P2P通信。 另一方面，网络实体可以参与P2P设备的资源协商。

公开(公告)号：US20110243010A1

公开(公告)日：2011-10-06

申请号：US13077249

申请日：2011-03-31

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

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

IPC分类号： H04W72/04 ,  H04W4/00 ,  H04W24/00

CPC分类号： H04W72/082 ,  H04W16/10 ,  H04W28/04 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/243 ,  H04W52/245 ,  H04W52/248 ,  H04W52/343 ,  H04W52/383 ,  H04W76/14 ,  H04W88/04 ,  H04W92/18

摘要： Techniques for performing interference management to support peer-to-peer (P2P) communication in a wide area network (WAN) are described. In an aspect, interference management may be performed in a coordinated manner for/by a set of server nodes, which may include a P2P server and at least one neighbor server node of the P2P server. The P2P server may be a UE communicating peer-to-peer with at least one other UE or P2P client. Interference management may be performed for the set of server nodes to reduce interference to the P2P server and/or the at least one P2P client. In one design, active sets may be determined for UEs. The active set of each UE may include nodes received with sufficient strength by that UE. The set of server nodes may be determined based on the active sets of the P2P server, the at least one P2P client, and possibly other UEs.

摘要翻译： 描述了用于执行干扰管理以支持广域网（WAN）中的对等（P2P）通信的技术。 在一个方面中，干扰管理可以以一组服务器节点的协同方式执行，该服务器节点可以包括P2P服务器和P2P服务器的至少一个邻居服务器节点。 P2P服务器可以是与至少一个其他UE或P2P客户端进行对等通信的UE。 可以对该组服务器节点执行干扰管理，以减少对P2P服务器和/或至少一个P2P客户端的干扰。 在一种设计中，可以为UE确定活动集。 每个UE的活动集可以包括由该UE充分强度接收的节点。 可以基于P2P服务器，至少一个P2P客户端和可能的其他UE的活动集来确定服务器节点集合。

公开(公告)号：US09614641B2

公开(公告)日：2017-04-04

申请号：US13103733

申请日：2011-05-09

申请人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Aleksandar Damnjanovic ,  Parag Arun Agashe

发明人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Aleksandar Damnjanovic ,  Parag Arun Agashe

IPC分类号： G06F15/16 ,  H04L1/00 ,  H04L29/08 ,  H04W28/18 ,  H04W8/00 ,  H04W76/02 ,  H04W84/18 ,  H04W28/08 ,  H04W72/02 ,  H04W92/18

CPC分类号： H04W72/0493 ,  H04L1/00 ,  H04L1/0026 ,  H04L5/1438 ,  H04L67/104 ,  H04W8/005 ,  H04W28/08 ,  H04W28/18 ,  H04W72/02 ,  H04W76/14 ,  H04W84/18 ,  H04W92/18

摘要： Techniques for determining resources to use for peer-to-peer (P2P) communication are disclosed. In an aspect, a network entity may receive feedback information (e.g., resource usage information and/or channel state information) from P2P devices and may perform resource partitioning based on the feedback information to allocate some of the available resources for P2P communication. The allocated resources may observe little or no interference from devices engaged in wide area network (WAN) communication. In another aspect, P2P groups may perform resource negotiation via a WAN connection (e.g., with little or no involvement by the WAN) to assign the allocated resources to different P2P groups. In yet another aspect, a device may autonomously determine whether to communicate with another device directly or via a WAN, e.g., whether to initiate P2P communication with another device and whether to terminate P2P communication. In yet another aspect, a network entity may participate in resource negotiation by P2P devices.

公开(公告)号：US09559820B2

公开(公告)日：2017-01-31

申请号：US13359154

申请日：2012-01-26

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： H04L12/22 ,  H04L5/00

CPC分类号： H04L5/0048

摘要： In macro/RRH setups, channel state information reference signals (CSI-RS) and demodulation reference signals (DM-RS) may be used to decouple control and data transmission. Data transmission (e.g. for LTE Rel 10 and beyond) may be based on CSI-RS and DM-RS, while control may be received from a different set of cells or TxPs via CRS. Certain aspects of the present disclosure introduce a reporting framework, in which configuration of data-serving cells/TxPs may be carried out based on CSI-RS. In certain aspects, a new concept of CSI-RS groups, i.e., a set of CSI-RS ports that a UE considers as one group for precoding matrix indicator (PMI)/channel quality indicator (CQI)/rank indicator (RI) reporting, may be defined.

摘要翻译： 在宏/ RRH设置中，可以使用信道状态信息参考信号（CSI-RS）和解调参考信号（DM-RS）来去耦合控制和数据传输。 数据传输（例如，对于LTE Rel 10及其以外）可以基于CSI-RS和DM-RS，而可以经由CRS从不同的小区集合或TxP接收控制。 本公开的某些方面引入了报告框架，其中可以基于CSI-RS来执行数据服务小区/ TxP的配置。 在某些方面，CSI-RS组的新概念，即UE认为一组用于预编码矩阵指示符（PMI）/信道质量指示符（CQI）/秩指示符（RI）报告）的一组CSI-RS端口 ，可以被定义。

公开(公告)号：US09544108B2

公开(公告)日：2017-01-10

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： H04W24/10 ,  H04L5/00 ,  H04L25/02

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：US08995400B2

公开(公告)日：2015-03-31

申请号：US13358164

申请日：2012-01-25

申请人： Stefan Geirhofer ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Hao Xu

发明人： Stefan Geirhofer ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Hao Xu

IPC分类号： H04W24/10 ,  H04L5/00 ,  H04B7/06 ,  H04J11/00 ,  H04L25/02 ,  H04B7/02

CPC分类号： H04W72/085 ,  H04B7/024 ,  H04B7/0626 ,  H04J11/0053 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0092 ,  H04L25/0226 ,  H04L25/0228 ,  H04W24/10

摘要： Aspects disclosed herein relate to channel and interference estimations in a coordinated multi-point (CoMP) environment. In the disclosed aspects, an eNB may be equipped to signal an identifier indicating a plurality of resource patterns, each associated with a resource pattern group, and each including a first resource element pattern for channel estimation and a second resource element pattern for interference estimation. The UE may be equipped to receive the signaling and perform channel estimation based at least in part on the first resource element pattern, and interference estimation based at least in part on the second resource pattern generate at least one channel state report based on the channel and interference estimations, and transmit at least one channel state report to an eNB. The eNB may determine one or more resources for use by the UE based on the at least one received channel state report.

摘要翻译： 本文公开的方面涉及协调多点（CoMP）环境中的信道和干扰估计。 在所公开的方面中，eNB可以被配备为用信号通知指示多个资源模式的标识符，每个资源模式与资源模式组相关联，并且每个包括用于信道估计的第一资源元素模式和用于干扰估计的第二资源元素模式。 UE可以被配备为至少部分地基于第一资源元素模式来接收信令并执行信道估计，并且至少部分地基于第二资源模式的干扰估计基于信道生成至少一个信道状态报告，以及 干扰估计，并向eNB发送至少一个信道状态报告。 eNB可以基于至少一个接收到的信道状态报告来确定UE使用的一个或多个资源。

公开(公告)号：US20130021926A1

公开(公告)日：2013-01-24

申请号：US13359154

申请日：2012-01-26

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： H04W24/00 ,  H04W4/00

CPC分类号： H04L5/0048

摘要： In macro/RRH setups, channel state information reference signals (CSI-RS) and demodulation reference signals (DM-RS) may be used to decouple control and data transmission. Data transmission (e.g. for LTE Rel 10 and beyond) may be based on CSI-RS and DM-RS, while control may be received from a different set of cells or TxPs via CRS. Certain aspects of the present disclosure introduce a reporting framework, in which configuration of data-serving cells/TxPs may be carried out based on CSI-RS. In certain aspects, a new concept of CSI-RS groups, i.e., a set of CSI-RS ports that a UE considers as one group for precoding matrix indicator (PMI)/channel quality indicator (CQI)/rank indicator (RI) reporting, may be defined.

摘要翻译： 在宏/ RRH设置中，可以使用信道状态信息参考信号（CSI-RS）和解调参考信号（DM-RS）来去耦合控制和数据传输。 数据传输（例如，对于LTE Rel 10及其以外）可以基于CSI-RS和DM-RS，而可以经由CRS从不同的小区或TxP接收控制。 本公开的某些方面引入了报告框架，其中可以基于CSI-RS来执行数据服务小区/ TxP的配置。 在某些方面，CSI-RS组的新概念，即UE认为一组用于预编码矩阵指示符（PMI）/信道质量指示符（CQI）/秩指示符（RI）报告）的一组CSI-RS端口 ，可以被定义。