公开(公告)号：US09265049B2

公开(公告)日：2016-02-16

申请号：US12498468

申请日：2009-07-07

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

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

IPC分类号： H04W72/08 ,  H04W48/08 ,  H04W72/04 ,  H04B7/02

CPC分类号： H04W72/082 ,  H04B7/022 ,  H04B2201/70702 ,  H04W48/08 ,  H04W72/0406

摘要： Techniques for supporting data transmission on the uplink in a wireless network are described. In an aspect, a user equipment (UE) may send a data transmission to a serving base station and may send uplink control information (UCI) to a non-serving base station. The UCI may include pertinent information to allow the non-serving base station to process the data transmission from the UE. In one design, the UCI may allow the non-serving base station to estimate the interference due to the data transmission from the UE and to cancel the interference at the non-serving base station. The interference cancellation may improve the received signal quality at the non-serving base station. After the interference cancellation, the non-serving base station may process a data transmission from another UE served by the base station.

摘要翻译： 描述了用于在无线网络中的上行链路上支持数据传输的技术。 在一方面，用户设备（UE）可以向服务基站发送数据传输，并且可以向非服务基站发送上行链路控制信息（UCI）。 UCI可以包括允许非服务基站处理来自UE的数据传输的相关信息。 在一种设计中，UCI可以允许非服务基站估计由于来自UE的数据传输的干扰并且消除在非服务基站处的干扰。 干扰消除可以改善非服务基站处的接收信号质量。 在干扰消除之后，非服务基站可以处理来自基站服务的另一个UE的数据传输。

公开(公告)号：US08417252B2

公开(公告)日：2013-04-09

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： H04W72/00

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：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。

公开(公告)号：US08599705B2

公开(公告)日：2013-12-03

申请号：US12359612

申请日：2009-01-26

申请人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04L1/00 ,  H04W4/00

CPC分类号： H04W72/082 ,  H04W24/10

摘要： Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.

摘要翻译： 描述了用于管理无线网络中的干扰的技术。 基站可以从用户设备（UE）接收增强的导频测量报告，并且可以基于所接收的报告进行干扰管理决定。 基站可以基于从UE接收的增强型导频测量报告来选择用于UE的服务基站。 基站可以在相邻基站处确定具有低目标干扰电平的资源，并且可以避免在资源上调度UE用于上行链路传输。 基站还可以基于邻近基站的数据性能来确定是否为相邻基站预留资源，邻近基站是否观察到来自基站所服务的UE的高干扰，或者是否由邻居基站服务的UE 观察来自基站的高干扰，其可以基于增强的导频测量报告来确定。

公开(公告)号：US20100103821A1

公开(公告)日：2010-04-29

申请号：US12603397

申请日：2009-10-21

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

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

IPC分类号： H04L12/26 ,  H04W72/04 ,  H04W36/00

CPC分类号： H04W36/0055 ,  H04L1/0026 ,  H04L1/1607 ,  H04L5/0035 ,  H04W36/18

摘要： Systems and methods that designate a control attachment point(s) during transmission of data in a Coordinated Multipoint (CoMP) system. The control attachment point is represented by an anchor cell to address control signaling and represent a User Equipment's (UE) interaction with the wireless communication system from a perspective of control (e.g., supplying/sending grants to the UE, transmitting/receiving ACKS on the downlink/uplink to the UE, control information (CQI), and the like.) The cells can further engage in backhaul transfer of information therebetween, and dynamic switching/change of anchor point based on criteria such as control loading, channel quality, and the like can further be implemented.

摘要翻译： 在协调多点（CoMP）系统中传输数据期间指定控制连接点的系统和方法。 控制连接点由锚小区表示以解决控制信令，并且从控制的角度（例如，向UE提供/发送授权，在...上发送/接收ACKS）来表示与无线通信系统的用户设备（UE）交互 UE的下行链路/上行链路，控制信息（CQI）等）。小区可以进一步参与其间的信息的回程传输，以及基于诸如控制加载，信道质量等标准的动态切换/改变锚点 可以进一步实现。

公开(公告)号：US20100039948A1

公开(公告)日：2010-02-18

申请号：US12359612

申请日：2009-01-26

申请人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04J1/16 ,  H04W4/00

CPC分类号： H04W72/082 ,  H04W24/10

摘要： Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.

摘要翻译： 描述了用于管理无线网络中的干扰的技术。 基站可以从用户设备（UE）接收增强的导频测量报告，并且可以基于所接收的报告进行干扰管理决定。 基站可以基于从UE接收的增强型导频测量报告来选择用于UE的服务基站。 基站可以在相邻基站处确定具有低目标干扰电平的资源，并且可以避免在资源上调度UE用于上行链路传输。 基站还可以基于邻近基站的数据性能来确定是否为相邻基站预留资源，邻近基站是否观察到来自基站所服务的UE的高干扰，或者是由相邻基站服务的UE 观察来自基站的高干扰，其可以基于增强的导频测量报告来确定。

公开(公告)号：US20100008294A1

公开(公告)日：2010-01-14

申请号：US12498468

申请日：2009-07-07

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

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

IPC分类号： H04W4/00 ,  H04B15/00 ,  H04B1/00

CPC分类号： H04W72/082 ,  H04B7/022 ,  H04B2201/70702 ,  H04W48/08 ,  H04W72/0406

摘要： Techniques for supporting data transmission on the uplink in a wireless network are described. In an aspect, a user equipment (UE) may send a data transmission to a serving base station and may send uplink control information (UCI) to a non-serving base station. The UCI may include pertinent information to allow the non-serving base station to process the data transmission from the UE. In one design, the UCI may allow the non-serving base station to estimate the interference due to the data transmission from the UE and to cancel the interference at the non-serving base station. The interference cancellation may improve the received signal quality at the non-serving base station. After the interference cancellation, the non-serving base station may process a data transmission from another UE served by the base station.

摘要翻译： 描述了用于在无线网络中的上行链路上支持数据传输的技术。 在一方面，用户设备（UE）可以向服务基站发送数据传输，并且可以向非服务基站发送上行链路控制信息（UCI）。 UCI可以包括允许非服务基站处理来自UE的数据传输的相关信息。 在一种设计中，UCI可以允许非服务基站估计由于来自UE的数据传输的干扰并且消除在非服务基站处的干扰。 干扰消除可以改善非服务基站处的接收信号质量。 在干扰消除之后，非服务基站可以处理来自基站服务的另一个UE的数据传输。

公开(公告)号：US08737296B2

公开(公告)日：2014-05-27

申请号：US12603397

申请日：2009-10-21

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

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

IPC分类号： H04W4/00

CPC分类号： H04W36/0055 ,  H04L1/0026 ,  H04L1/1607 ,  H04L5/0035 ,  H04W36/18

摘要： Systems and methods that designate a control attachment point(s) during transmission of data in a Coordinated Multipoint (CoMP) system. The control attachment point is represented by an anchor cell to address control signaling and represent a User Equipment's (UE) interaction with the wireless communication system from a perspective of control (e.g., supplying/sending grants to the UE, transmitting/receiving ACKS on the downlink/uplink to the UE, control information (CQI), and the like.) The cells can further engage in backhaul transfer of information therebetween, and dynamic switching/change of anchor point based on criteria such as control loading, channel quality, and the like can further be implemented.

摘要翻译： 在协调多点（CoMP）系统中传输数据期间指定控制连接点的系统和方法。 控制连接点由锚小区表示以解决控制信令，并且从控制的角度（例如，向UE提供/发送授权，在...上发送/接收ACKS）来表示与无线通信系统的用户设备（UE）交互 UE的下行链路/上行链路，控制信息（CQI）等）。小区可以进一步参与其间的信息的回程传输，以及基于诸如控制加载，信道质量等标准的动态切换/改变锚点 可以进一步实现。