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：US08000284B2

公开(公告)日：2011-08-16

申请号：US10892739

申请日：2004-07-15

申请人： Christopher G. Lott ,  Naga Bhushan ,  Rashid A. Attar ,  Jilei Hou

发明人： Christopher G. Lott ,  Naga Bhushan ,  Rashid A. Attar ,  Jilei Hou

IPC分类号： H04B7/185

CPC分类号： H04W52/34 ,  H04W52/24 ,  H04W52/26 ,  H04W52/50 ,  H04W72/0473 ,  H04W72/12 ,  H04W88/02

摘要： An access terminal (206) configured for wireless communication with an access network (204) within a sector (1032). The access terminal (206) includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions stored in the memory (2604) implement a method of determining whether a current power allocation grant (1374) for a flow (1216) on the access terminal (206) has been received from the access network (204). If the current power allocation grant (1374) is still active, a current power allocation (1338a) for the flow is set equal to the current power allocation grant (1374). If the current power allocation grant (1374) has not been received, the current power allocation (1338a) for the flow is determined.

摘要翻译： 接入终端（206），被配置为与扇区（1032）内的接入网络（204）进行无线通信。 接入终端（206）包括用于向接入网络（204）发送反向业务信道的发射机（2608），用于从接入网络（204）接收信号的天线（2614），处理器（2602）和存储器 2604）与处理器（2602）电子通信。 存储在存储器（2604）中的指令实现一种确定是否已经从接入网络（204）接收到用于接入终端（206）上的流（1216）的当前功率分配许可（1374）的方法。 如果当前功率分配授权（1374）仍然有效，则流程的当前功率分配（1338a）被设置为等于当前功率分配授权（1374）。 如果当前功率分配许可（1374）尚未被接收，则确定流的当前功率分配（1338a）。

公开(公告)号：US20110176435A1

公开(公告)日：2011-07-21

申请号：US12841292

申请日：2010-07-22

申请人： Aamod D. Khandekar ,  Ravi Palanki ,  Peter Gaal ,  Tingfang Ji ,  Naga Bhushan ,  Juan Montojo

发明人： Aamod D. Khandekar ,  Ravi Palanki ,  Peter Gaal ,  Tingfang Ji ,  Naga Bhushan ,  Juan Montojo

IPC分类号： H04J3/00 ,  H04W4/00 ,  H04W24/08 ,  H04W74/04

CPC分类号： H04W72/0446 ,  H04L1/0001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0007 ,  H04L5/1469 ,  H04L5/16 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082

摘要： Techniques for supporting communication in an asynchronous TDD wireless network are described. In an aspect, downlink transmissions and uplink transmissions may be sent on different carriers in an asynchronous TDD wireless network to mitigate interference. In one design, a station (e.g., a base station or a UE) may send a first transmission on a first carrier in a first time period and may receive a second transmission on a second carrier in a second time period. The station may only transmit, or only receive, or neither in each time period. In one design, allocation of carriers for the downlink and uplink may be performed when strong interference is detected, e.g., by a base station or a UE. When strong interference is not detected, the first and second carriers may each be used for both the downlink and uplink.

摘要翻译： 描述了用于支持异步TDD无线网络中的通信的技术。 在一方面，下行链路传输和上行链路传输可以在异步TDD无线网络中的不同载波上发送以减轻干扰。 在一种设计中，站（例如，基站或UE）可以在第一时间段内在第一载波上发送第一传输，并且可以在第二时间段内在第二载波上接收第二传输。 车站只能在每个时段内传送，也可以只接收。 在一种设计中，例如由基站或UE检测到强干扰时，可以执行用于下行链路和上行链路的载波的分配。 当没有检测到强干扰时，第一和第二载波可以分别用于下行链路和上行链路。

公开(公告)号：US20110076962A1

公开(公告)日：2011-03-31

申请号：US12891672

申请日：2010-09-27

申请人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Jelena M. Damnjanovic ,  Juan Montojo ,  Naga Bhushan

发明人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Jelena M. Damnjanovic ,  Juan Montojo ,  Naga Bhushan

IPC分类号： H04B1/00

CPC分类号： H04L5/0053 ,  H04L5/001 ,  H04L5/0094

摘要： Methods, systems, apparatus and computer program products are provided to facilitate the configuration and allocation of control information associated with transmissions of a wireless communication system. In systems that utilize multiple component carriers, cross-carrier signaling may be used to carry the control information associated with one component carrier on a different component carrier. By allowing control information messages to share their allocated search spaces, the number of decoding attempts needed to obtain control information can be kept within desirable limits while improving scheduling and resource allocation flexibility. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 提供方法，系统，装置和计算机程序产品以便于与无线通信系统的传输相关联的控制信息的配置和分配。 在利用多分量载波的系统中，可以使用跨载波信令来携带与不同分量载波上的一个分量载波相关联的控制信息。 通过允许控制信息消息共享其分配的搜索空间，获得控制信息所需的解码尝试次数可以保持在期望的限度内，同时改善调度和资源分配的灵活性。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

公开(公告)号：US20100278132A1

公开(公告)日：2010-11-04

申请号：US12770453

申请日：2010-04-29

申请人： Ravi Palanki ,  Aamod Dinkar Khandekar ,  Naga Bhushan

发明人： Ravi Palanki ,  Aamod Dinkar Khandekar ,  Naga Bhushan

IPC分类号： H04W40/00 ,  H04W72/04

CPC分类号： H04J11/005 ,  H04B1/7107 ,  H04B2201/70702 ,  H04J11/004 ,  H04J11/0069 ,  H04L5/0048 ,  H04L5/0053 ,  H04W24/00 ,  H04W48/08 ,  H04W72/082

摘要： Techniques for transmitting and detecting for overhead channels and signals in a wireless network are described. In an aspect, a base station may blank (i.e., not transmit) at least one overhead transmission on certain resources in order to detect for the at least one overhead transmission of another base station. In one design, the base station may (i) send the overhead transmission(s) on a first subset of designated resources and (ii) blank the overhead transmission(s) on a second subset of the designated resources. The designated resources may be resources on which the overhead transmission(s) are sent by macro base stations. The base station may detect for the overhead transmission(s) from at least one other base station on the second subset of the designated resources. In another aspect, the base station may transmit the overhead transmission(s) on additional resources different from the designated resources.

摘要翻译： 描述了用于无线网络中的开销信道和信号的发送和检测的技术。 在一方面，基站可能在某些资源上空白（即不发送）至少一个开销传输，以便检测另一个基站的至少一个开销传输。 在一种设计中，基站可以（i）在指定资源的第一子集上发送开销传输，并且（ii）将指定资源的第二子集上的开销传输空白。 指定的资源可以是由宏基站发送开销传输的资源。 基站可以从指定资源的第二子集上的至少一个其他基站检测开销传输。 在另一方面，基站可以对与指定资源不同的附加资源发送开销传输。

公开(公告)号：US20100234016A1

公开(公告)日：2010-09-16

申请号：US12722290

申请日：2010-03-11

申请人： Ravi Palanki ,  Naga Bhushan ,  Aamod D. Khandekar ,  Ashwin Sampath ,  Raja S. Bachu

发明人： Ravi Palanki ,  Naga Bhushan ,  Aamod D. Khandekar ,  Ashwin Sampath ,  Raja S. Bachu

IPC分类号： H04W24/00

CPC分类号： H04W48/08

摘要： Systems, apparatus, methods and computer program products for facilitating collision detection are provided. In some embodiments, a method can include: receiving identifying information during one or more time intervals from a plurality of base stations; determining whether at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval; and determining that a collision has occurred between at least two of the plurality of base stations in response to determining that the at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval.

摘要翻译： 提供了用于促进碰撞检测的系统，装置，方法和计算机程序产品。 在一些实施例中，一种方法可以包括：在多个基站的一个或多个时间间隔期间接收识别信息; 确定在所述相同时间间隔期间是否已经发送了来自所述多个基站的识别信息的至少两个不同值; 以及响应于确定来自所述多个基站的所述识别信息的所述至少两个不同值已经在相同的时间间隔期间被发送，确定在所述多个基站中的至少两个基站之间发生冲突。

公开(公告)号：US20100135213A1

公开(公告)日：2010-06-03

申请号：US12626241

申请日：2009-11-25

申请人： Jean Put Ling Au ,  Christopher Gerard Lott ,  Naga Bhushan ,  Rashid Ahmed Akbar Attar

发明人： Jean Put Ling Au ,  Christopher Gerard Lott ,  Naga Bhushan ,  Rashid Ahmed Akbar Attar

IPC分类号： H04W40/00

CPC分类号： H04W28/22 ,  H04W16/14 ,  H04W24/00 ,  H04W52/14 ,  H04W52/146 ,  H04W52/243

摘要： In a wireless communication system, an apparatus and a method are provided for controlling reverse link interference among access terminals that are power controlled by a sector of a base station. In an embodiment, the maximum effective noise power spectral density is used as a parameter for controlling the level of reverse link loading, by setting a reverse activity bit (RAB) to signal the access terminals to reduce their data rates in order to minimize interference between the access terminals if the maximum effective noise power spectral density is above a predetermined threshold.

摘要翻译： 在无线通信系统中，提供了一种用于控制由基站的扇区进行功率控制的接入终端之间的反向链路干扰的装置和方法。 在一个实施例中，最大有效噪声功率谱密度用作控制反向链路负载水平的参数，通过设置反向活动比特（RAB）来向接入终端发信号以减小它们的数据速率，以便最小化干扰 如果最大有效噪声功率谱密度高于预定阈值，则接入终端。

公开(公告)号：US20100106828A1

公开(公告)日：2010-04-29

申请号：US12580139

申请日：2009-10-15

申请人： Ravi Palanki ,  Alexei Y. Gorokhov ,  Naga Bhushan

发明人： Ravi Palanki ,  Alexei Y. Gorokhov ,  Naga Bhushan

IPC分类号： G06F15/173

CPC分类号： H04W24/00 ,  H04B17/24 ,  H04B17/345 ,  H04J11/0053 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/02 ,  H04L5/0023 ,  H04L5/0035 ,  H04L2001/0092 ,  H04W72/0426 ,  H04W72/085 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

摘要： Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced. As additionally described herein, loading information broadcasted by respective interfering network nodes can be identified and utilized in connection with interference calculation.

摘要翻译： 本文描述了促进网络多输入多输出（N-MIMO）通信系统中的干扰测量和报告的系统和方法。 如本文所述，网络设备可以测量和报告对应于可以协作地服务于设备的指定节点集合之外的网络节点的干扰。 相应的干扰报告可以另外识别主要干扰节点，相应节点的发射天线之间的相关性等。 随后，各个干扰报告可以与每个节点的信道信息组合以管理跨各个网络节点的协调和调度。 如本文进一步描述的，可以通过观察来自网络节点的参考和/或同步信号来测量来自网络节点的干扰。 为了帮助这种观察，相应的非干扰网络节点可以定义空导频间隔，其中传输被静音或以其他方式减少。 如本文另外描述的，可以结合干扰计算来识别和利用由各个干扰网络节点广播的加载信息。

公开(公告)号：US20100099449A1

公开(公告)日：2010-04-22

申请号：US12425302

申请日：2009-04-16

申请人： Mohammad J. Borran ,  Avneesh Agrawal ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Naga Bhushan ,  Tingfang Ji

发明人： Mohammad J. Borran ,  Avneesh Agrawal ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Naga Bhushan ,  Tingfang Ji

IPC分类号： H04B15/00 ,  H04B7/00

CPC分类号： H04W52/243 ,  H04W72/08

摘要： Techniques for managing interference in a wireless network are described. In an aspect, reduce interference requests and interference indicators may be used for interference management to enable operation in scenarios with dominant interferers. In one design, a terminal may receive a reduce interference request from a first base station requesting lower interference on specified time-frequency resources. The terminal may also receive an interference indicator conveying the interference observed by a second base station. The terminal may determine its transmit power based on the reduce interference request and the interference indicator. For example, the terminal may determine an initial transmit power based on the reduce interference request (or the interference indicator) and may adjust the initial transmit power based on the interference indicator (or the reduce interference request) to obtain its transmit power. The terminal may transmit data to a serving base station at the determined transmit power.

摘要翻译： 描述了用于管理无线网络中的干扰的技术。 在一个方面，减少干扰请求和干扰指示符可以用于干扰管理，以使得能够在具有主要干扰源的情况下进行操作。 在一种设计中，终端可以从指定的时间 - 频率资源上请求较低干扰的第一基站接收减少干扰请求。 终端还可以接收传达由第二基站观测到的干扰的干扰指示符。 终端可以基于减少干扰请求和干扰指示符来确定其发射功率。 例如，终端可以基于减少干扰请求（或干扰指示符）来确定初始发射功率，并且可以基于干扰指示符（或减少干扰请求）来调整初始发射功率以获得其发射功率。 终端可以以所确定的发射功率向服务基站发送数据。

公开(公告)号：US20100099428A1

公开(公告)日：2010-04-22

申请号：US12425243

申请日：2009-04-16

申请人： Naga Bhushan ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Avneesh Agrawal ,  Aamod D. Khandekar ,  Tingfang Ji

发明人： Naga Bhushan ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Avneesh Agrawal ,  Aamod D. Khandekar ,  Tingfang Ji

IPC分类号： H04W72/00 ,  H04B15/00

CPC分类号： H04W72/082 ,  H04J11/0059 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0048 ,  H04W24/08

摘要： Techniques for transmitting null pilots to support interference estimation in a wireless network are described. A null pilot is non-transmission on designated time-frequency resources by a cell or a cluster of cells supporting cooperative transmission to a UE. The received power of the null pilot from the cell or cluster of cells may be indicative of interference from other cells. In one design, a cell in the cluster may determine resources for sending a null pilot by the cell. The cell may transmit the null pilot (i.e., send no transmissions) on the resources to allow UEs to estimate out-of-cluster interference. Some or all cells in the cluster may transmit null pilots on the same resources. The cell may receive interference and channel information from the UE and may send data transmission to the UE based on the interference and/or channel information. Remaining cells in the cluster may reduce interference to the UE.

摘要翻译： 描述了用于发送空导频以支持无线网络中的干扰估计的技术。 空导频是通过支持向UE的协作传输的小区或小区集群在指定的时间 - 频率资源上进行非传输。 来自小区或小区簇的空导频的接收功率可以指示来自其他小区的干扰。 在一种设计中，集群中的小区可以确定用于由小区发送空导频的资源。 小区可以在资源上发送空导频（即，不发送传输），以允许UE估计簇外干扰。 集群中的一些或所有单元可以在相同的资源上传输空导频。 小区可以从UE接收干扰和信道信息，并且可以基于干扰和/或信道信息向UE发送数据传输。 群集中的剩余小区可以减少对UE的干扰。