公开(公告)号：US20100190447A1

公开(公告)日：2010-07-29

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 ,  H04L1/18

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：US20100151873A1

公开(公告)日：2010-06-17

申请号：US12484624

申请日：2009-06-15

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

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

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04W16/14 ,  H04W72/0426 ,  H04W72/082

摘要： Systems and methodologies are described that facilitate requesting blanking over control resources from one or more interfering eNBs or devices. An eNB, such as a macrocell, femtocell or picocell eNB, can transmit a downlink control blanking message to a UE directing the UE to perform blanking (e.g., for uplink control resources) or request the blanking from the interfering eNBs or devices (e.g., for downlink control resources). The downlink control blanking message can specify the desired control resources and/or information to determine the control resources. Thus, dynamic control blanking is provided such that blanking is requested to mitigate interference over control resources for the small scale eNB. The small scale eNB can subsequently communicate control data to the UE over the control resources; the control data can include a resource blanking message that similarly directs the UE to request blanking of general data resource from the interfering eNBs or devices.

摘要翻译： 描述了有助于从一个或多个干扰eNB或设备请求对控制资源进行置空的系统和方法。 诸如宏小区，毫微微小区或微微小区eNB的eNB可以向指示UE执行消隐（例如，对于上行链路控制资源）或从干扰eNB或设备请求消隐的UE发送下行链路控制置空消息（例如， 用于下行链路控制资源）。 下行链路控制消隐消息可以指定期望的控制资源和/或信息来确定控制资源。 因此，提供动态控制消隐，使得消隐被请求以减轻针对小规模eNB的控制资源的干扰。 小规模eNB随后可以通过控制资源向UE发送控制数据; 控制数据可以包括资源消隐消息，其类似地指示UE请求来自干扰eNB或设备的通用数据资源的消隐。

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：US09974065B2

公开(公告)日：2018-05-15

申请号：US12484624

申请日：2009-06-15

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

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

IPC分类号： H04W28/04 ,  H04W72/04 ,  H04W16/14 ,  H04W72/08

CPC分类号： H04W72/042 ,  H04W16/14 ,  H04W72/0426 ,  H04W72/082

摘要： Systems and methodologies are described that facilitate requesting blanking over control resources from one or more interfering eNBs or devices. An eNB, such as a macrocell, femtocell or picocell eNB, can transmit a downlink control blanking message to a UE directing the UE to perform blanking (e.g., for uplink control resources) or request the blanking from the interfering eNBs or devices (e.g., for downlink control resources). The downlink control blanking message can specify the desired control resources and/or information to determine the control resources. Thus, dynamic control blanking is provided such that blanking is requested to mitigate interference over control resources for the small scale eNB. The small scale eNB can subsequently communicate control data to the UE over the control resources; the control data can include a resource blanking message that similarly directs the UE to request blanking of general data resource from the interfering eNBs or devices.

公开(公告)号：US09026164B2

公开(公告)日：2015-05-05

申请号：US12578066

申请日：2009-10-13

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

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

IPC分类号： H04B7/00 ,  H04W52/24 ,  H04W52/32

CPC分类号： H04W52/244 ,  H04J11/0023 ,  H04W52/242 ,  H04W52/325

摘要： Techniques for selectively transmitting a power decision pilot are described. The power decision pilot may be indicative of the transmit power to use for data transmission in a future time interval. The power decision pilot may be transmitted when sufficiently beneficial for channel quality estimation or omitted otherwise. Whether or not to transmit the power decision pilot may be determined based on system type (e.g., heterogeneous or homogeneous system), the presence or absence of a dominant interferer, whether a reduce interference request is received, etc. For example, a base station may transmit a power decision pilot if it causes high interference to a non-served terminal, if a served terminal observes high interference from a neighbor base station, if the base station receives a reduce interference request from a non-served terminal, etc. The power decision pilot may be transmitted if a determination is made to transmit the pilot or omitted otherwise.

摘要翻译： 描述用于选择性地发射功率决策导频的技术。 功率决定导频可以指示在将来的时间间隔中用于数据传输的发射功率。 如果对信道质量估计有足够的有利的话，则功率决定导频可以被传输，否则否则省略。 可以基于系统类型（例如，异构或均匀系统），显着干扰源的存在或不存在，是否接收到减少干扰请求等来确定是否发送功率决策导频。例如，基站 如果服务终端观察到来自相邻基站的高干扰，如果基站从非服务终端接收到减少干扰请求等，则它可以对未服务终端造成高干扰，可以发送功率决策导频。 如果确定发送导频，否则将发送功率决定导频。

公开(公告)号：US08934395B2

公开(公告)日：2015-01-13

申请号：US12578056

申请日：2009-10-13

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04J1/10 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18

CPC分类号： H04L5/006 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1887 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L5/0091 ,  H04L2001/0097

摘要： Systems and methodologies are described herein that facilitate generation and processing of control signaling to support uplink network multiple-in-multiple-out (N-MIMO) communication in a wireless communication system. As described herein, respective network nodes associated with an uplink N-MIMO framework can generate channel state information (CSI) corresponding to an uplink channel from a designated network user to the respective nodes. Generated CSI can subsequently be communicated to an uplink anchor node for the network user in order to facilitate rate assignment, scheduling, and/or other operations with respect to the network user. As described herein, CSI generated and reported by respective cells can include channel profiles, carrier/interference profiles, estimated supported uplink rates, or the like. As additionally described herein, supplemental information such as observed interference levels, demodulation indicators, or the like can be communicated to an anchor node and utilized in rate assignment and/or scheduling.

摘要翻译： 本文描述了便于生成和处理控制信令以在无线通信系统中支持上行链路多输入多输出（N-MIMO）通信的系统和方法。 如本文所述，与上行链路N-MIMO框架相关联的各个网络节点可以生成对应于从指定网络用户到相应节点的上行链路信道的信道状态信息（CSI）。 随后可以将生成的CSI传送给网络用户的上行链路锚节点，以便于相对于网络用户的速率分配，调度和/或其他操作。 如这里所描述的，由各个小区生成和报告的CSI可以包括信道简档，载波/干扰简档，估计支持的上行链路速率等。 如本文另外描述的，诸如观测到的干扰电平，解调指示符等的补充信息可以被传送到锚节点并且用于速率分配和/或调度。

公开(公告)号：US08447236B2

公开(公告)日：2013-05-21

申请号：US12463734

申请日：2009-05-11

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04B1/00

CPC分类号： H04L25/0228 ,  H04B7/0617 ,  H04B7/0619 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

摘要： Techniques for transmitting and receiving data with spatial interference mitigation in a wireless communication network are described. In one design, a cell may receive precoding information from a first user equipment (UE) communicating with the cell and spatial feedback information (SFI) from a second UE not communicating with the cell. The cell may select a precoding matrix based on the precoding information and the SFI. The precoding matrix may steer a transmission toward the first UE and away from the second UE. The cell may send a reference signal based on the precoding matrix, send a resource quality information (RQI) request to the first UE, receive RQI determined by the first UE based on the reference signal, and determine a modulation and coding scheme (MCS) based on the RQI. The cell may then send a data transmission to the first UE with the precoding matrix and in accordance with the MCS.

摘要翻译： 描述了在无线通信网络中用空间干扰减轻发送和接收数据的技术。 在一种设计中，小区可以从不与小区通信的第一用户设备（UE）接收预编码信息，并从不与小区通信的第二UE接收空间反馈信息（SFI）。 小区可以基于预编码信息和SFI来选择预编码矩阵。 预编码矩阵可以引导朝向第一UE并远离第二UE的传输。 小区可以基于预编码矩阵发送参考信号，向第一UE发送资源质量信息（RQI）请求，基于参考信号接收由第一UE确定的RQI，并且确定调制和编码方案（MCS） 基于RQI。 然后，小区可以使用预编码矩阵并根据MCS向第一UE发送数据传输。

公开(公告)号：US20100177746A1

公开(公告)日：2010-07-15

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： H04W72/04

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：US20100103834A1

公开(公告)日：2010-04-29

申请号：US12578056

申请日：2009-10-13

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04B7/005 ,  H04L27/28 ,  H04L12/26

CPC分类号： H04L5/006 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1887 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L5/0091 ,  H04L2001/0097

摘要： Systems and methodologies are described herein that facilitate generation and processing of control signaling to support uplink network multiple-in-multiple-out (N-MIMO) communication in a wireless communication system. As described herein, respective network nodes associated with an uplink N-MIMO framework can generate channel state information (CSI) corresponding to an uplink channel from a designated network user to the respective nodes. Generated CSI can subsequently be communicated to an uplink anchor node for the network user in order to facilitate rate assignment, scheduling, and/or other operations with respect to the network user. As described herein, CSI generated and reported by respective cells can include channel profiles, carrier/interference profiles, estimated supported uplink rates, or the like. As additionally described herein, supplemental information such as observed interference levels, demodulation indicators, or the like can be communicated to an anchor node and utilized in rate assignment and/or scheduling.

摘要翻译： 本文描述了便于生成和处理控制信令以在无线通信系统中支持上行链路多输入多输出（N-MIMO）通信的系统和方法。 如本文所述，与上行链路N-MIMO框架相关联的各个网络节点可以生成对应于从指定网络用户到相应节点的上行链路信道的信道状态信息（CSI）。 随后可以将生成的CSI传送给网络用户的上行链路锚节点，以便于相对于网络用户的速率分配，调度和/或其他操作。 如这里所描述的，由各个小区生成和报告的CSI可以包括信道简档，载波/干扰简档，估计支持的上行链路速率等。 如本文另外描述的，诸如观测到的干扰电平，解调指示符等的补充信息可以被传送到锚节点并且用于速率分配和/或调度。

公开(公告)号：US20100067421A1

公开(公告)日：2010-03-18

申请号：US12557407

申请日：2009-09-10

申请人： Alexei Y. Gorokhov ,  Ravi Palanki ,  Tamer A. Kadous ,  Fatih Ulupinar

发明人： Alexei Y. Gorokhov ,  Ravi Palanki ,  Tamer A. Kadous ,  Fatih Ulupinar

IPC分类号： G08C17/00

CPC分类号： H04W52/0216 ,  H04W48/12 ,  H04W52/0206 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/23

摘要： Apparatus and methods are disclosed for control of an idle mode in a wireless device. In particular, the idle mode duty cycle of a preamble transmission by an access point (AP), as an example, is variably or adaptively set in response to determined conditions of the wireless neighborhood. The conditions determined include the whether or not other wireless devices are present in the vicinity of sensing wireless device, as well as the state of those devices present, such as whether they are in an idle mode or an active mode.

摘要翻译： 公开了用于控制无线设备中的空闲模式的装置和方法。 具体地，作为示例，由接入点（AP）的前导码传输的空闲模式占空比可响应于所确定的无线邻域的条件而被可变地或自适应地设置。 确定的条件包括其他无线设备是否存在于感测无线设备附近，以及存在的那些设备的状态，例如它们是处于空闲模式还是活动模式。