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公开(公告)号：US08498647B2
公开(公告)日：2013-07-30
申请号：US12547395
申请日：2009-08-25
IPC分类号： H04W40/00
CPC分类号： H04W24/02 , H04B7/024 , H04B17/382
摘要： Systems and methodologies are described that facilitate dynamically forming clusters in a wireless communication environment. A set of non-overlapping clusters can be formed dynamically over time and in a distributed manner. Each of the clusters can include a set of base stations and a set of mobile devices. The clusters can be yielded based upon a set of local strategies selected by base stations across the network converged upon through message passing. For example, each base station can select a particular local strategy as a function of time based upon network-wide utility estimates respectively conditioned upon implementation of the particular local strategy and disparate possible local strategies that can cover the corresponding base station. Moreover, operation within each of the clusters can be coordinated.
摘要翻译： 描述了促进在无线通信环境中动态形成集群的系统和方法。 一组不重叠的簇可以随着时间和分布式动态地形成。 每个群集可以包括一组基站和一组移动设备。 可以基于通过基站通过消息传递收敛的网络选择的一组局部策略来产生群集。 例如，基于分别基于特定局部策略的实施和可覆盖相应基站的不同的可能的局部策略的网络范围的效用估计，每个基站可以选择作为时间的函数的特定局部策略。 此外，可以协调每个群集内的操作。
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公开(公告)号：US20100056215A1
公开(公告)日：2010-03-04
申请号：US12547395
申请日：2009-08-25
IPC分类号： H04B1/38
CPC分类号： H04W24/02 , H04B7/024 , H04B17/382
摘要： Systems and methodologies are described that facilitate dynamically forming clusters in a wireless communication environment. A set of non-overlapping clusters can be formed dynamically over time and in a distributed manner. Each of the clusters can include a set of base stations and a set of mobile devices. The clusters can be yielded based upon a set of local strategies selected by base stations across the network converged upon through message passing. For example, each base station can select a particular local strategy as a function of time based upon network-wide utility estimates respectively conditioned upon implementation of the particular local strategy and disparate possible local strategies that can cover the corresponding base station. Moreover, operation within each of the clusters can be coordinated.
摘要翻译： 描述了促进在无线通信环境中动态形成集群的系统和方法。 一组不重叠的簇可以随着时间和分布式动态地形成。 每个群集可以包括一组基站和一组移动设备。 可以基于通过基站通过消息传递收敛的网络选择的一组局部策略来产生群集。 例如，基于分别基于特定局部策略的实施和可覆盖相应基站的不同的可能的局部策略的网络范围的效用估计，每个基站可以选择作为时间的函数的特定局部策略。 此外，可以协调每个群集内的操作。
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3.发明授权List elimination for distributed downlink coordinated multi-point (CoMP) framework 失效分布式下行链路协调多点（CoMP）框架的列表消除公开(公告)号：US08675511B2
公开(公告)日：2014-03-18
申请号：US12633692
申请日：2009-12-08
IPC分类号： H04L12/26
CPC分类号： H04L5/0091 , H04L5/0035 , H04W28/06 , H04W48/18 , H04W92/20
摘要： Providing for record filtering in distributed dynamic clustering algorithms for coordinated multipoint (CoMP) wireless communication is described herein. By way of example, strategy selection records distributed as part of a belief propagation network are pruned at recipient nodes, thereby reducing processing overhead for dynamic clustering. As a result, cooperative policies can be determined with greater efficiency, and with greater relevance to local clusters of cooperating base stations. In some aspects, record pruning can comprise identifying and discarding redundant or incompatible sets of policy decisions. In at least one aspect, a number of evaluated records can be capped based on relevance, while preserving deployment-wide applicability of the belief propagation network. Accordingly, dynamic distributed CoMP decisions are optimized on a deployment-wide scale that more efficiently converges to maximum utility solutions.
摘要翻译： 本文描述了用于协调多点（CoMP）无线通信的分布式动态聚类算法中的记录过滤。 作为示例，作为信任传播网络的一部分分发的策略选择记录在接收节点处被修剪，从而减少动态聚类的处理开销。 因此，可以更有效率地确定合作政策，并与当地的合作基站集群更为相关。 在某些方面，记录修剪可以包括识别和丢弃冗余或不兼容的策略决策集合。 在至少一个方面，可以基于相关性来限制许多评估记录，同时保留信任传播网络的部署范围适用性。 因此，动态分布式CoMP决策在部署范围内进行优化，从而更有效地收敛到最大的实用解决方案。
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4.发明授权Method and apparatus for cooperation strategy selection in a wireless communication system 失效无线通信系统中合作策略选择的方法和装置公开(公告)号：US08432821B2
公开(公告)日：2013-04-30
申请号：US12568269
申请日：2009-09-28
CPC分类号： H04W24/02 , H04L5/0023 , H04L5/0035 , H04L5/006 , H04L5/0073 , H04L5/0091
摘要： Systems and methodologies are described that facilitate cooperation strategy selection for a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, one or more nodes in a communication system capable of N-MIMO communication can calculate marginal utilities, projected per-user rates, and/or other parameters corresponding to respective associated users. Based on these calculations, respective network nodes can perform user scheduling and selection, cell scheduling and selection, selection of a cooperation strategy (e.g., coordinated silencing, joint transmission, coordinated beamforming, etc.), and/or other operations to provide cooperative communication for respective users. As further described herein, projected rate calculation for a given user can be adjusted based on processing or channel implementation loss associated with the user, interference nulling capability of the user, or other factors. As additionally described herein, these and/or other parameters can be fed back by respective users to a serving network node and/or mandated via system performance requirements.
摘要翻译： 描述了促进网络多输入多输出（N-MIMO）通信系统的协作策略选择的系统和方法。 如这里所描述的，能够进行N-MIMO通信的通信系统中的一个或多个节点可以计算边际效用，预计的每用户速率和/或对应于各个相关用户的其他参数。 基于这些计算，各个网络节点可以执行用户调度和选择，小区调度和选择，合作策略的选择（例如，协调消隐，联合传输，协调波束形成等）和/或提供协作通信的其他操作 为各个用户。 如本文进一步描述的，可以基于与用户相关联的处理或信道实现损失，用户的干扰归零能力或其他因素来调整给定用户的预计速率计算。 如本文另外描述的，这些和/或其他参数可以由相应的用户反馈到服务网络节点和/或通过系统性能要求强制。
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5.发明申请METHOD AND APPARATUS FOR COOPERATION STRATEGY SELECTION IN A WIRELESS COMMUNICATION SYSTEM 失效无线通信系统中合作策略选择的方法与装置公开(公告)号：US20100085917A1
公开(公告)日：2010-04-08
申请号：US12568269
申请日：2009-09-28
CPC分类号： H04W24/02 , H04L5/0023 , H04L5/0035 , H04L5/006 , H04L5/0073 , H04L5/0091
摘要： Systems and methodologies are described that facilitate cooperation strategy selection for a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, one or more nodes in a communication system capable of N-MIMO communication can calculate marginal utilities, projected per-user rates, and/or other parameters corresponding to respective associated users. Based on these calculations, respective network nodes can perform user scheduling and selection, cell scheduling and selection, selection of a cooperation strategy (e.g., coordinated silencing, joint transmission, coordinated beamforming, etc.), and/or other operations to provide cooperative communication for respective users. As further described herein, projected rate calculation for a given user can be adjusted based on processing or channel implementation loss associated with the user, interference nulling capability of the user, or other factors. As additionally described herein, these and/or other parameters can be fed back by respective users to a serving network node and/or mandated via system performance requirements.
摘要翻译： 描述了促进网络多输入多输出（N-MIMO）通信系统的协作策略选择的系统和方法。 如这里所描述的，能够进行N-MIMO通信的通信系统中的一个或多个节点可以计算边际效用，预计的每用户速率和/或对应于各个相关用户的其他参数。 基于这些计算，各个网络节点可以执行用户调度和选择，小区调度和选择，合作策略的选择（例如，协调消隐，联合传输，协调波束形成等）和/或提供协作通信的其他操作 为各个用户。 如本文进一步描述的，可以基于与用户相关联的处理或信道实现损失，用户的干扰归零能力或其他因素来调整给定用户的预计速率计算。 如本文另外描述的，这些和/或其他参数可以由相应的用户反馈到服务网络节点和/或通过系统性能要求强制。
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6.发明申请LIST ELIMINATION FOR DISTRIBUTED DOWNLINK COORDINATED MULTI-POINT (CoMP) FRAMEWORK 失效分布式下行协调多点（CoMP）框架的列表消除公开(公告)号：US20100144334A1
公开(公告)日：2010-06-10
申请号：US12633692
申请日：2009-12-08
IPC分类号： H04W28/00
CPC分类号： H04L5/0091 , H04L5/0035 , H04W28/06 , H04W48/18 , H04W92/20
摘要： Providing for record filtering in distributed dynamic clustering algorithms for coordinated multipoint (CoMP) wireless communication is described herein. By way of example, strategy selection records distributed as part of a belief propagation network are pruned at recipient nodes, thereby reducing processing overhead for dynamic clustering. As a result, cooperative policies can be determined with greater efficiency, and with greater relevance to local clusters of cooperating base stations. In some aspects, record pruning can comprise identifying and discarding redundant or incompatible sets of policy decisions. In at least one aspect, a number of evaluated records can be capped based on relevance, while preserving deployment-wide applicability of the belief propagation network. Accordingly, dynamic distributed CoMP decisions are optimized on a deployment-wide scale that more efficiently converges to maximum utility solutions.
摘要翻译： 本文描述了用于协调多点（CoMP）无线通信的分布式动态聚类算法中的记录过滤。 作为示例，作为信任传播网络的一部分分发的策略选择记录在接收节点处被修剪，从而减少动态聚类的处理开销。 因此，可以更有效率地确定合作政策，并与当地的合作基站集群更为相关。 在某些方面，记录修剪可以包括识别和丢弃冗余或不兼容的策略决策集合。 在至少一个方面，可以基于相关性来限制许多评估记录，同时保留信任传播网络的部署范围适用性。 因此，动态分布式CoMP决策在部署范围内进行优化，从而更有效地收敛到最大的实用解决方案。
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7.发明申请公开(公告)号：US20110206106A1
公开(公告)日：2011-08-25
申请号：US12849230
申请日：2010-08-03
CPC分类号： H04L25/0204 , H04B7/024 , H04B7/043 , H04B7/0626 , H04L1/0026 , H04L1/06 , H04L5/0035 , H04L25/0242 , H04L25/0246 , H04L25/0248 , H04W24/10
摘要： Techniques for sending hierarchical feedback of channel state information are described. In one design, a user equipment (UE) determines channel gain information for multiple cells selectable to transmit data to the UE. The UE also determines intra-cell relative phase information for at least one cell among the multiple cells. The UE reports the channel gain information and the intra-cell relative phase information. The channel gain information may include multiple quantized channel vectors for each of the multiple cells. The intra-cell relative phase information may indicate phase errors in the quantized channel vectors for each of the at least one cell. The UE may also determine and report other information. The UE may receive data from one or more cells among the plurality of cells. Each cell may transmit data based on at least one transmit vector determined based on the channel gain information and the intra-cell relative phase information.
摘要翻译： 描述用于发送信道状态信息的分级反馈的技术。 在一种设计中，用户设备（UE）确定用于向UE发送数据的多个小区的信道增益信息。 UE还确定多个小区中的至少一个小区的小区内相对相位信息。 UE报告信道增益信息和小区内相对相位信息。 信道增益信息可以包括用于多个小区中的每一个的多个量化信道向量。 小区内相对相位信息可以指示用于至少一个小区中的每一个的量化信道向量中的相位误差。 UE还可以确定并报告其他信息。 UE可以从多个小区中的一个或多个小区接收数据。 每个小区可以基于基于信道增益信息和小区内相对相位信息确定的至少一个发送向量来发送数据。
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8.发明授权公开(公告)号：US08379705B2
公开(公告)日：2013-02-19
申请号：US12849230
申请日：2010-08-03
IPC分类号： H04B3/46
CPC分类号： H04L25/0204 , H04B7/024 , H04B7/043 , H04B7/0626 , H04L1/0026 , H04L1/06 , H04L5/0035 , H04L25/0242 , H04L25/0246 , H04L25/0248 , H04W24/10
摘要： Techniques for sending hierarchical feedback of channel state information are described. In one design, a user equipment (UE) determines channel gain information for multiple cells selectable to transmit data to the UE. The UE also determines intra-cell relative phase information for at least one cell among the multiple cells. The UE reports the channel gain information and the intra-cell relative phase information. The channel gain information may include multiple quantized channel vectors for each of the multiple cells. The intra-cell relative phase information may indicate phase errors in the quantized channel vectors for each of the at least one cell. The UE may also determine and report other information. The UE may receive data from one or more cells among the plurality of cells. Each cell may transmit data based on at least one transmit vector determined based on the channel gain information and the intra-cell relative phase information.
摘要翻译： 描述用于发送信道状态信息的分级反馈的技术。 在一种设计中，用户设备（UE）确定用于向UE发送数据的多个小区的信道增益信息。 UE还确定多个小区中的至少一个小区的小区内相对相位信息。 UE报告信道增益信息和小区内相对相位信息。 信道增益信息可以包括用于多个小区中的每一个的多个量化信道向量。 小区内相对相位信息可以指示用于至少一个小区中的每一个的量化信道向量中的相位误差。 UE还可以确定并报告其他信息。 UE可以从多个小区中的一个或多个小区接收数据。 每个小区可以基于基于信道增益信息和小区内相对相位信息确定的至少一个发送向量来发送数据。
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9.发明申请METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM 有权用于N-MIMO通信系统中干扰报告的方法和装置公开(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。
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10.发明申请公开(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
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。
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