公开(公告)号：US20090325626A1

公开(公告)日：2009-12-31

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： H04B7/005

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：US20090245331A1

公开(公告)日：2009-10-01

申请号：US12411258

申请日：2009-03-25

申请人： Ravi Palanki ,  Alexei Y. Gorokhov

发明人： Ravi Palanki ,  Alexei Y. Gorokhov

IPC分类号： H04B1/707 ,  H04L27/28 ,  H04L27/00

CPC分类号： H04W72/082 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/10 ,  H04L27/2647 ,  H04L27/30 ,  H04W52/243 ,  H04W52/245 ,  H04W52/281 ,  H04W52/32 ,  H04W72/0426

摘要： Techniques for sending signaling messages in a wireless communication network are described. In an aspect, a signaling message (e.g., a reduce interference request) may be sent by mapping it to at least one specific subcarrier among a set of subcarriers reserved for sending the signaling message. The at least one subcarrier may be selected based on the message value. A signal may be sent on the at least one subcarrier in multiple symbol periods to convey the signaling message. In another aspect, a reduce interference request may be sent based on an orthogonal resource among orthogonal resources available for sending reduce interference requests. In one design, an orthogonal sequence may be selected based on the request and may be spread across a resource segment. In another design, the reduce interference request may be processed to obtain modulation symbols, and each modulation symbol may be spread across multiple subcarriers in one symbol period.

摘要翻译： 描述了在无线通信网络中发送信令消息的技术。 在一方面，信令消息（例如，减少干扰请求）可以通过将信令消息映射到保留用于发送信令消息的一组子载波中的至少一个特定子载波来发送。 可以基于消息值来选择至少一个子载波。 可以在多个符号周期中的至少一个子载波上发送信号以传送信令消息。 在另一方面，可以基于可用于发送减少干扰请求的正交资源之间的正交资源来发送减少干扰请求。 在一种设计中，可以基于请求来选择正交序列，并且可以跨越资源段进行扩展。 在另一种设计中，可以处理减少干扰请求以获得调制符号，并且每个调制符号可以在一个符号周期内跨多个子载波进行扩展。

公开(公告)号：US09537613B2

公开(公告)日：2017-01-03

申请号：US12580136

申请日：2009-10-15

申请人： Ravi Palanki ,  Alexei Y. Gorokhov

发明人： Ravi Palanki ,  Alexei Y. Gorokhov

IPC分类号： H04W4/00 ,  H04L1/18 ,  H04L1/00

CPC分类号： H04L1/1893 ,  H04B7/024 ,  H04L1/0025 ,  H04L1/1887 ,  H04L2001/0097 ,  H04W72/0413 ,  H04W72/042

摘要： Systems and methodologies are described that facilitate identifying resources upon which an acknowledgment can be sent or received in a wireless communication environment that leverages coordinated multi-point (CoMP). The resources can be identified based upon a criterion that can be identifiable to a non-anchor cell base station (as well as an anchor cell base station, a mobile device, etc.). The criterion can be an identifier corresponding to a mobile device, where the identifier maps to a predetermined set of resources. Examples of the identifier can include a media access control identifier (MACID), a cell radio network temporary identifier (C-RNTI), a short C-RNTI, etc. Further, the criterion can be physical resources corresponding to a transmission, where the acknowledgment is responsive to the transmission. Moreover, the acknowledgment can be sent or received in connection with a cooperation technique (e.g., joint transmission via inter-site packet sharing, cooperative beamforming, cooperative silence, . . . ).

摘要翻译： 描述了便于识别在利用协调多点（CoMP）的无线通信环境中可以发送或接收确认的资源的系统和方法。 可以基于可以被识别为非锚小区基站（以及锚小区基站，移动设备等）的标准来识别资源。 标准可以是对应于移动设备的标识符，其中标识符映射到预定资源集合。 标识符的示例可以包括媒体访问控制标识符（MACID），小区无线电网络临时标识符（C-RNTI），短C-RNTI等。此外，标准可以是对应于传输的物理资源，其中 确认响应于传输。 此外，可以结合协作技术（例如，经由站点间分组共享，协同波束形成，协作静音等的联合传输）发送或接收确认。

公开(公告)号：US08867999B2

公开(公告)日：2014-10-21

申请号：US12437362

申请日：2009-05-07

申请人： Avneesh Agrawal ,  Peter Gaal ,  Ravi Palanki ,  Alexei Y. Gorokhov

发明人： Avneesh Agrawal ,  Peter Gaal ,  Ravi Palanki ,  Alexei Y. Gorokhov

IPC分类号： H04B1/00

CPC分类号： H04W72/082 ,  H04W48/08

摘要： A method to mitigate interference in a wireless system is provided. The method includes processing a set of radio network identifiers and limiting a number of hypotheses associated with the radio network identifiers in order to mitigate interference in a wireless network. In another aspect, the method includes processing a set of hypotheses and limiting the set of hypotheses by limiting a number of downlink grants to a common space, limiting the number of downlink grants to a number of instances, or limiting the number of grants to a physical downlink control channel (PDCCH) type. In yet another aspect, the method includes processing a downlink set and generating a target termination level for the downlink data set, the termination level associated with a Hybrid automatic repeat-request.

摘要翻译： 提供了一种减轻无线系统干扰的方法。 该方法包括处理一组无线电网络标识符并限制与无线电网络标识符相关联的假设数量，以便减轻无线网络中的干扰。 在另一方面，该方法包括处理一组假设并通过将下行链路授权的数量限制到公共空间来限制假设集合，将下行链路授权的数量限制到多个实例，或将授权数量限制为 物理下行链路控制信道（PDCCH）类型。 在另一方面，该方法包括处理下行链路集合并为下行链路数据集生成与混合自动重传请求相关联的终止级别的目标终止级别。

公开(公告)号：US08755807B2

公开(公告)日：2014-06-17

申请号：US12652923

申请日：2010-01-06

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04W72/00 ,  H04W4/00

CPC分类号： H04L5/0007 ,  H04B7/024 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0082 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03866

摘要： Techniques for supporting Coordinated MultiPoint (CoMP) transmission are described. For CoMP transmission, multiple cells may simultaneously send one or more data streams to one or more UEs on the same time-frequency resources based on short-term channel feedback from at least one UE to at least two cells. In an aspect, a semi-static configuration may be used by a set of cells for CoMP transmission to a UE. The semi-static configuration may indicate resource elements available to the set of cells to send CoMP transmission to the UE. The available resource elements may be determined based on a maximum number of TDM control symbols for all cells in the set and resource elements used for cell-specific reference signals by the cells in the set. A cell in the set may send data on the available resource elements to the UE for the CoMP transmission.

摘要翻译： 描述了支持协调多点（CoMP）传输的技术。 对于CoMP传输，多个小区可以基于从至少一个UE到至少两个小区的短期信道反馈，在相同的时间 - 频率资源上同时向一个或多个UE发送一个或多个数据流。 在一方面，半静态配置可以被一组小区用于CoMP传输到UE。 半静态配置可以指示用于该小区集合的资源元素以向UE发送CoMP传输。 可以基于集合中的所有小区的最大数量的TDM控制符号和由集合中的小区用于小区特定参考信号的资源元素来确定可用资源元素。 集合中的小区可以将可用资源元素上的数据发送给UE用于CoMP传输。

公开(公告)号：US08265562B2

公开(公告)日：2012-09-11

申请号：US12400383

申请日：2009-03-09

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W52/243

摘要： In a wireless communication system, short-term interference mitigation may be used to mitigate (e.g., to avoid or reduce) interference on a given link in order to improve performance of data transmission. The interference mitigation reduces transmit power of interfering transmissions so that a higher signal-to-noise-and-interference ratio (SINR) can be achieved for a desired data transmission. A node may observe high interference from an interfering node that degrades performance of data transmission sent on that link. By taking advantage of an communication path with the interfering node (e.g., wireless data/control channel, backhaul network connection, or analog broadcast signal), the transmitting node can successfully complete time critical communications while allowing the interfering node to also simultaneously communicate without reducing overall resources nor burdening any managing nodes.

摘要翻译： 在无线通信系统中，可以使用短期干扰减轻来减轻（例如，以避免或减少）给定链路上的干扰，以便提高数据传输的性能。 干扰减轻减少干扰传输的发射功率，从而可以实现更高的信噪比干扰比（SINR），用于所需的数据传输。 节点可能会观察到来自干扰节点的高干扰，从而降低在该链路上发送的数据传输的性能。 通过利用与干扰节点（例如，无线数据/控制信道，回程网络连接或模拟广播信号）的通信路径，发送节点可以成功地完成时间关键通信，同时允许干扰节点同时通信而不减少 整体资源也不负责管理节点。

公开(公告)号：US20100265913A1

公开(公告)日：2010-10-21

申请号：US12761170

申请日：2010-04-15

申请人： Alexei Y. Gorokhov ,  Aamod Dinkar Khandekar ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Aamod Dinkar Khandekar ,  Ravi Palanki

IPC分类号： H04W36/00

CPC分类号： H04W36/0055 ,  H04W36/0066 ,  H04W36/0072

摘要： Providing for user equipment mobility in a multi-carrier wireless network deployment is described herein. By way of example, data pertinent to mobile cell selection can be shared among base stations operating on different carrier frequencies either over-the-air or via a wired backhaul, and distributed by a base station to mobile terminals served by the base station. In one aspect, the data can be distributed over a wireless channel reserved for inter-carrier association data, whereas in other aspects, the data can be unicast to particular mobile terminals served by the base station. This can reduce or avoid a need for individual mobile terminals to tune away to a non-serving carrier for inter-carrier association or handover determinations. Accordingly, gaps in signal analysis on a serving carrier can be reduced or avoided, improving overall quality of wireless communication in a multi-carrier environment.

摘要翻译： 这里描述了在多载波无线网络部署中提供用户设备移动性。 作为示例，与移动小区选择相关的数据可以在通过无线或经由有线回程在不同载波频率上工作的基站之间共享，并且由基站分配给由基站服务的移动终端。 在一个方面，数据可以通过保留用于载波间关联数据的无线信道进行分配，而在其他方面，数据可以是单播到由基站服务的特定移动终端。 这可以减少或避免各个移动终端调谐到非服务载波以进行载波间关联或切换确定的需要。 因此，可以减少或避免在服务载波上的信号分析中的差距，从而提高多载波环境中的无线通信的整体质量。

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：US20100008244A1

公开(公告)日：2010-01-14

申请号：US12483623

申请日：2009-06-12

申请人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

发明人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

IPC分类号： H04L12/26 ,  H04W24/00 ,  H04W36/00

CPC分类号： H04W72/082

摘要： Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved, . . . ), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g. access grant signal, subsequent access related message, . . . ) as a function of the information included in the access probe.

摘要翻译： 描述了有助于在无线通信环境中向目标服务基站指示主要干扰源的系统和方法。 移动设备可以检测显着干扰源的存在或不存在。 此外，可以生成包括与显着干扰源的存在或不存在有关的信息的访问探针。 例如，信息可以包括在接入探测器的有效载荷中作为显式标志，干扰级别的显式指示，信道质量指示符（CQI）值（例如，保留与非保留的...）， 此外，可以将接入探针发送到目标服务基站以发起接入过程。 目标服务基站可以根据包括在接入探测器中的信息来选择要用于响应下行链路传输（例如接入许可信号，后续接入相关消息，...）的时间 - 频率资源。

公开(公告)号：US09265048B2

公开(公告)日：2016-02-16

申请号：US12483623

申请日：2009-06-12

申请人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

发明人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

IPC分类号： H04W72/08

CPC分类号： H04W72/082

摘要： Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved, . . . ), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g. access grant signal, subsequent access related message, . . . ) as a function of the information included in the access probe.

摘要翻译： 描述了有助于在无线通信环境中向目标服务基站指示主要干扰源的系统和方法。 移动设备可以检测显着干扰源的存在或不存在。 此外，可以生成包括与显着干扰源的存在或不存在有关的信息的访问探针。 例如，信息可以包括在接入探测器的有效载荷中作为显式标志，干扰级别的显式指示，信道质量指示符（CQI）值（例如，保留与非保留的...）， 此外，可以将接入探针发送到目标服务基站以发起接入过程。 目标服务基站可以根据包括在接入探测器中的信息来选择要用于响应下行链路传输（例如接入许可信号，后续接入相关消息，...）的时间 - 频率资源。