公开(公告)号：US09019903B2

公开(公告)日：2015-04-28

申请号：US12632094

申请日：2009-12-07

申请人： Ravi Palanki ,  Alexei Y. Gorokhov ,  Juan Montojo

发明人： Ravi Palanki ,  Alexei Y. Gorokhov ,  Juan Montojo

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04J11/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/08

CPC分类号： H04W72/0406 ,  H04J11/0053 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0091 ,  H04L25/0202 ,  H04W72/082

摘要： Systems and methodologies are described that facilitate assigning uplink resources for utilization by a mobile device for sending an uplink signal in an uplink coordinated multi-point (CoMP) wireless communication environment. For instance, a hopping tree can be defined across base stations, and neighboring base stations can schedule interfering mobile devices upon uplink resources mapped to different nodes from the hopping tree. By way of another example, a plurality of hopping trees can be employed across base stations in the uplink CoMP wireless communication environment. Moreover, an acknowledgment can be sent to the mobile device upon downlink resources identified as a function of the uplink resources. Further, the downlink resources can be distinct from disparate downlink resources utilized for sending an acknowledgment to a disparate mobile device from a neighboring base station.

摘要翻译： 描述了有助于分配上行链路资源以供移动设备利用以在上行链路协调多点（CoMP）无线通信环境中发送上行链路信号的系统和方法。 例如，可以在基站之间定义跳跃树，并且相邻基站可以在从跳频树映射到不同节点的上行链路资源上调度干扰移动设备。 作为另一示例，可以在上行链路CoMP无线通信环境中跨基站采用多个跳变树。 此外，在根据上行链路资源确定的下行链路资源上，可以向移动设备发送确认。 此外，下行链路资源可以不同于用于从相邻基站向不同的移动设备发送确认的不同的下行链路资源。

公开(公告)号：US08761824B2

公开(公告)日：2014-06-24

申请号：US12490086

申请日：2009-06-23

申请人： Ravi Palanki ,  Alexei Y. Gorokhov

发明人： Ravi Palanki ,  Alexei Y. Gorokhov

IPC分类号： H04B7/00

CPC分类号： H04W72/082 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0073 ,  H04L27/2601 ,  H04W24/02 ,  H04W52/244

摘要： Techniques for communicating on multiple carriers in a wireless communication network are described. In an aspect, different transmit power levels may be used for different carriers to mitigate interference. A first base station may be assigned one or more carriers among multiple carriers available for communication. A second base station may be assigned one or more carriers not assigned to the first base station. Each base station may communicate on each assigned carrier at a first (e.g., full) transmit power level and may communicate on each unassigned carrier at a second (e.g., lower) transmit power level lower. The first and second base stations may belong in different power classes or support different association types. In another aspect, control information may be sent on a designated carrier to support communication on multiple carriers. In yet another aspect, a base station may broadcast bar information indicating the status of carriers.

摘要翻译： 描述了用于在无线通信网络中的多个载波上进行通信的技术。 在一个方面，不同的发射功率电平可以用于不同的载波以减轻干扰。 可以在可用于通信的多个载波中为第一基站分配一个或多个载波。 可以向第二基站分配未分配给第一基站的一个或多个载波。 每个基站可以在每个分配的载波上以第一（例如，全）发射功率电平进行通信，并且可以在较低的第二（例如更低）的发射功率电平的每个未分配的载波上进行通信。 第一和第二基站可以属于不同的功率等级或支持不同的关联类型。 在另一方面，可以在指定的载波上发送控制信息，以支持在多个载波上的通信。 在另一方面，基站可以广播指示载波状态的条信息。

公开(公告)号：US08675511B2

公开(公告)日：2014-03-18

申请号：US12633692

申请日：2009-12-08

申请人： Alexei Y. Gorokhov ,  Alan Barbieri ,  Siddhartha Mallik ,  Mohammad J. Borran

发明人： Alexei Y. Gorokhov ,  Alan Barbieri ,  Siddhartha Mallik ,  Mohammad J. Borran

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。

公开(公告)号：US08432821B2

公开(公告)日：2013-04-30

申请号：US12568269

申请日：2009-09-28

申请人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Alan Barbieri ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Alan Barbieri ,  Jilei Hou

IPC分类号： G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26

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。

公开(公告)号：US08346173B2

公开(公告)日：2013-01-01

申请号：US12727177

申请日：2010-03-18

申请人： Wanshi Chen ,  Juan Montojo ,  Alexei Y. Gorokhov

发明人： Wanshi Chen ,  Juan Montojo ,  Alexei Y. Gorokhov

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W72/082

摘要： A method and system facilitate inter-cell interference cancellation in a wireless network. An RNTI component manages a set of radio network temporary identifiers (RNTIs) for a plurality of user equipment (UE). The RNTI component determines whether the UEs will likely cause interference with a neighboring cell and/or experience interference from a neighboring cell, based on a respective attribute of the UEs. The RNTI component includes a space splitting component that divides the set of RNTIs into at least two subsets based on the determination, and allocates a first group of the UEs that are determined to likely cause interference and/or experience interference to a first subset of the divided RNTIs, such that the UEs in the first group are allocated a corresponding one of the RNTIs among the first subset of RNTIs. An implicit broadcast component can implicitly broadcast the first subset of RNTIs to facilitate cancellation of interference possibly caused by the first group of UEs.

摘要翻译： 一种方法和系统促进无线网络中的小区间干扰消除。 RNTI组件管理用于多个用户设备（UE）的一组无线电网络临时标识符（RNTI）。 RNTI组件基于UE的相应属性来确定UE是否可能引起对相邻小区的干扰和/或经历来自相邻小区的干扰。 RNTI组件包括空间分割组件，其基于该确定将RNTI集合分成至少两个子集，并且将被确定为可能导致干扰和/或经历干扰的UE的第一组分配给第一子集 使得RNTI的第一子集中的第一组中的UE被分配了RNTI的对应的一个。 隐式广播组件可以隐含地广播RNTI的第一子集，以便于消除可能由第一组UE引起的干扰。

公开(公告)号：US08295250B2

公开(公告)日：2012-10-23

申请号：US11781723

申请日：2007-07-23

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04B7/216

CPC分类号： H04L1/0041 ,  H04J13/0048 ,  H04L1/0045 ,  H04L1/0071

摘要： Communication systems and methods that mitigate false alarms due to Doppler shift are disclosed. Received message data is mapped to orthogonal Walsh codes, interleaved and scrambled with appropriate PN sequence prior to transmission. The transmitted message data is descrambled and deinterleaved upon reception. The energies associated with each of the Walsh code from various antennas and/or signal paths are combined to obtain a total energy for each Walsh code. If the total energy of the Walsh code exceeds a certain threshold it is declared as the received message else an erasure is indicated. As the data is interleaved prior to transmission, any phase ramp introduced due to Doppler is transformed into random phase errors upon deinterleaving at the receiver thereby mitigating false alarms.

摘要翻译： 公开了减轻由于多普勒频移导致的假警报的通信系统和方法。 接收的消息数据被映射到正交沃尔什码，在传输之前用适当的PN序列进行交织和加扰。 发送的消息数据在接收时进行解扰和解交织。 与来自各种天线和/或信号路径的每个沃尔什码相关联的能量被组合以获得每个沃尔什码的总能量。 如果沃尔什码的总能量超过某个阈值，则将其声明为接收到的消息，否则指示擦除。 随着数据在传输之前进行交错，由于多普勒引入的任何相位斜坡在接收机上进行解交织后被转换为随机相位误差，从而减轻了误报。

公开(公告)号：US20110268007A1

公开(公告)日：2011-11-03

申请号：US12911674

申请日：2010-10-25

申请人： Peter A. Barany ,  Alexei Y. Gorokhov ,  Vikas Jain ,  Tao Luo ,  Yongbin Wei

发明人： Peter A. Barany ,  Alexei Y. Gorokhov ,  Vikas Jain ,  Tao Luo ,  Yongbin Wei

IPC分类号： H04H20/71

CPC分类号： H04W72/0426 ,  H04B7/024 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04W92/20

摘要： Aspects of the present disclosure relate generally to wireless communication systems, and more particularly to a coordinated multi-point network and protocol architecture. One aspect discloses a method of wireless communication and includes receiving a measurement report from a user equipment (UE). Coordinated multi point (CoMP) control messages are transmitted from a first eNodeB to a second eNodeB at a medium access control (MAC) layer in response to the received measurement report.

摘要翻译： 本公开的方面一般涉及无线通信系统，更具体地涉及协调的多点网络和协议架构。 一方面公开了一种无线通信方法，包括从用户设备（UE）接收测量报告。 响应于所接收的测量报告，协调多点（CoMP）控制消息在介质访问控制（MAC）层从第一eNodeB发送到第二eNodeB。

公开(公告)号：US20100202308A1

公开(公告)日：2010-08-12

申请号：US12698028

申请日：2010-02-01

申请人： Alexei Y. Gorokhov ,  Jaber M. Borran

发明人： Alexei Y. Gorokhov ,  Jaber M. Borran

IPC分类号： H04W72/12 ,  H04L12/26

CPC分类号： H04B7/0417 ,  H04B7/0626 ,  H04B7/0634 ,  H04W16/28

摘要： Certain aspects of the present disclosure support techniques for cooperative beamforming based on inter-cell coordination. Signaling design allows coordinated downlink transmissions with reduced inter-cell interference.

摘要翻译： 本公开的某些方面基于小区间协调来支持用于协作波束成形的技术。 信令设计允许协调的下行链路传输减少小区间干扰。

公开(公告)号：US20100104033A1

公开(公告)日：2010-04-29

申请号：US12582166

申请日：2009-10-20

申请人： Alexei Y. Gorokhov

发明人： Alexei Y. Gorokhov

IPC分类号： H04L27/28

CPC分类号： H04L1/0026 ,  H04B7/024 ,  H04L5/0035 ,  H04L25/0248 ,  H04L25/03343 ,  H04L2025/03808

摘要： Systems and methodologies are described herein that facilitate the generation and use of separable, hierarchical channel state feedback in a wireless communication system. As described herein, in the event that multiple network nodes cooperate to conduct downlink transmissions to a network user, channel state feedback as reported by the network user can be separated into intra-node feedback relating to per-node channel conditions and inter-node feedback relating to relative phase and/or amplitude between channels corresponding to respective nodes. Further, a network user can select to report intra-node feedback and/or inter-node feedback based on network instructions, a cooperation strategy to be utilized by respective network nodes, or the like. As additionally described herein, respective codebooks on which inter-node and intra-node channel feedback is based can be configured to convey information relating to a partial channel description and/or to vary based on resource units (e.g., sub-bands, resource blocks, etc.) utilized for downlink communication.

摘要翻译： 本文描述了有助于在无线通信系统中产生和使用可分离的分级信道状态反馈的系统和方法。 如这里所述，在多个网络节点合作进行向网络用户的下行链路传输的情况下，由网络用户报告的信道状态反馈可以被分成与每节点信道条件和节点间反馈相关的节点内反馈 涉及与相应节点相对应的信道之间的相对相位和/或幅度。 此外，网络用户可以选择基于网络指令来报告节点内反馈和/或节点间反馈，由各个网络节点利用的协作策略等。 如本文另外描述的，节点间和节点内信道反馈所基于的相应码本可以被配置为传送与部分信道描述相关的信息和/或基于资源单元（例如，子带，资源块 等）用于下行链路通信。

公开(公告)号：US20100085917A1

公开(公告)日：2010-04-08

申请号：US12568269

申请日：2009-09-28

申请人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Alan Barbieri ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Alan Barbieri ,  Jilei Hou

IPC分类号： H04W40/00 ,  H04L27/28

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。