公开(公告)号：US08385268B2

公开(公告)日：2013-02-26

申请号：US12730640

申请日：2010-03-24

申请人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Juan Montojo ,  Alexei Gorokhov ,  Naga Bhushan

发明人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Juan Montojo ,  Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04W4/00 ,  H04J3/08 ,  G08C25/02

CPC分类号： H04L1/0038 ,  H04L1/1812 ,  H04L5/0053 ,  H04W88/04

摘要： Systems and methodologies are described herein that facilitate efficient control decoding to facilitate management of cooperative relay operation in a wireless communication environment. As described herein, a relay node (RN) and/or another entity cooperating with a serving network node for respective users in a potentially assisted group can prune a search space of control decoding candidates corresponding to the respective users. For example, respective control decoding candidates corresponding to, e.g., common and/or user-specific search spaces, aggregation levels, control channel sizes, etc., can be eliminated from a reduced control search space based on various criteria. Further, sets of control decoding candidates corresponding to respective users not schedulable at a given time interval can be eliminated. In addition, control search space pruning can be performed in addition to or in place of increased cyclic redundancy check (CRC) protection for control information, thereby further decreasing the probability of false control detection.

摘要翻译： 本文描述了促进有效控制解码以便于在无线通信环境中协调中继操作的管理的系统和方法。 如本文所描述的，与潜在辅助组中的相应用户的服务网络节点协作的中继节点（RN）和/或另一个实体可以修剪对应于各个用户的控制解码候选的搜索空间。 例如，可以基于各种标准从减少的控制搜索空间中消除对应于例如公共和/或用户特定搜索空间，聚合级别，控制信道大小等的各个控制解码候选。 此外，可以消除对应于在给定时间间隔不可调度的各个用户的控制解码候选集。 此外，除了控制信息的增加的循环冗余校验（CRC）保护之外，还可以执行控制搜索空间修剪，从而进一步降低了错误控制检测的可能性。

公开(公告)号：US08340070B2

公开(公告)日：2012-12-25

申请号：US11864792

申请日：2007-09-28

申请人： Naga Bhushan ,  Alexei Gorokhov

发明人： Naga Bhushan ,  Alexei Gorokhov

IPC分类号： H04B7/208

CPC分类号： H04W16/02 ,  H04L27/2626 ,  H04W52/346

摘要： Partitioning resources so that they can be operated in different modes and synchronizing these partitioning among different sectors so that they can employ mutually cooperative power allocation settings are provided. The resources can be partitioned into one of two modes, namely, block mode or distributed mode. A user can be synchronized according to the mode and a zone, which can be based in part on the mode. The synchronization can be based on bit reversal order or quasi-uniform spacing of tones.

摘要翻译： 分配资源使得它们可以以不同的模式操作并且在不同扇区之间同步这些分区，从而提供它们可以采用相互协调的功率分配设置。 资源可以分为两种模式之一，即块模式或分布式模式。 用户可以根据模式和区域进行同步，区域可以部分基于模式。 同步可以基于位反转顺序或音调的准均匀间隔。

公开(公告)号：US20120252468A1

公开(公告)日：2012-10-04

申请号：US13495774

申请日：2012-06-13

申请人： Alexei Gorokhov ,  Avneesh Agrawal ,  Naga Bhushan ,  Tinfang Ji

发明人： Alexei Gorokhov ,  Avneesh Agrawal ,  Naga Bhushan ,  Tinfang Ji

IPC分类号： H04W16/02

CPC分类号： H04W16/04 ,  H04L1/0026

摘要： Systems and methodologies are described that facilitate employing distributed frequency planning and reuse factor optimization based upon forward link and/or reverse link interference management techniques. An optimal reuse factor for a base station can be determined based upon a metric that evaluates levels of service associated with neighboring base stations. Moreover, a subset of available resource sets can be selected for use by the base station; thus, a base station specific collection of resource sets can be formed through such selection. Further, mappings of each resource set to a set of physical resources can be disseminated in a network or portion thereof. According to another example, frequency hopping can be constrained to use of resources within a resource set (rather than across more than one resource set) as provided in a base station specific hopping pattern.

摘要翻译： 描述了有助于采用基于前向链路和/或反向链路干扰管理技术的分布式频率规划和重用因子优化的系统和方法。 可以基于评估与相邻基站相关联的服务等级的度量来确定基站的最佳重用因子。 此外，可以选择可用资源集的子集供基站使用; 因此，可以通过这样的选择来形成基站特定资源集合。 此外，每个资源集合对一组物理资源的映射可以在网络或其一部分中传播。 根据另一示例，跳频可以被限制为使用资源集合（而不是跨越多于一个资源集合）的资源，如在基站特定跳频模式中所提供的。

公开(公告)号：US08219030B2

公开(公告)日：2012-07-10

申请号：US12142480

申请日：2008-06-19

申请人： Alexei Gorokhov ,  Avneesh Agrawal ,  Naga Bhushan ,  Tingfang Ji

发明人： Alexei Gorokhov ,  Avneesh Agrawal ,  Naga Bhushan ,  Tingfang Ji

IPC分类号： H04B17/00

CPC分类号： H04W16/04 ,  H04L1/0026

摘要： Systems and methodologies are described that facilitate employing distributed frequency planning and reuse factor optimization based upon forward link and/or reverse link interference management techniques. An optimal reuse factor for a base station can be determined based upon a metric that evaluates levels of service associated with neighboring base stations. Moreover, a subset of available resource sets can be selected for use by the base station; thus, a base station specific collection of resource sets can be formed through such selection. Further, mappings of each resource set to a set of physical resources can be disseminated in a network or portion thereof. According to another example, frequency hopping can be constrained to use of resources within a resource set (rather than across more than one resource set) as provided in a base station specific hopping pattern.

摘要翻译： 描述了有助于采用基于前向链路和/或反向链路干扰管理技术的分布式频率规划和重用因子优化的系统和方法。 可以基于评估与相邻基站相关联的服务等级的度量来确定基站的最佳重用因子。 此外，可以选择可用资源集的子集供基站使用; 因此，可以通过这样的选择来形成基站特定资源集合。 此外，每个资源集合对一组物理资源的映射可以在网络或其一部分中传播。 根据另一示例，跳频可以被限制为使用资源集合（而不是跨越多于一个资源集合）的资源，如在基站特定跳频模式中所提供的。

公开(公告)号：US20120063293A1

公开(公告)日：2012-03-15

申请号：US13212114

申请日：2011-08-17

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04W36/00 ,  H04J11/00

CPC分类号： H04J13/0048 ,  H04B2001/70935 ,  H04B2201/70707 ,  H04W36/08 ,  H04W48/16 ,  H04W74/0833

摘要： A method includes scrambling a Walsh sequence with a random sequence to produce a scrambled Walsh sequence. The method also includes transmitting the scrambled Walsh sequence as an access-based handoff probe.

摘要翻译： 一种方法包括用随机序列对沃尔什序列进行加扰以产生加扰沃尔什序列。 该方法还包括发送加扰的沃尔什序列作为基于接入的切换探测。

公开(公告)号：US20120003986A1

公开(公告)日：2012-01-05

申请号：US13230761

申请日：2011-09-12

申请人： Alexei Gorokhov ,  Naga Bhushan

发明人： Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04W72/08 ,  H04W72/04

CPC分类号： H04W72/042 ,  H04W52/146 ,  H04W52/247 ,  H04W52/58 ,  H04W72/0473

摘要： Assigning power spectrum density to access terminals within a wireless network environment is provided. Assignment information that includes assignment of reverse link transmission resources is determined and a power control instruction is created for the assigned reverse link transmission resource. An assignment message that includes both the assignment information and the power control instruction is formatted and communicated to the access terminals. The assignment message includes a Reverse Link Power Control field that indicates a transmit power spectral density assigned by the access point to the reverse-link transmission by the terminal.

摘要翻译： 为无线网络环境中的接入终端分配功率谱密度。 确定包括反向链路传输资源的分配的分配信息，并为所分配的反向链路传输资源创建功率控制指令。 包括分配信息和功率控制指令两者的分配消息被格式化并传送到接入终端。 分配消息包括反向链路功率控制字段，其指示由接入点分配给终端的反向链路传输的发射功率谱密度。

公开(公告)号：US08077595B2

公开(公告)日：2011-12-13

申请号：US11676939

申请日：2007-02-20

申请人： Naga Bhushan ,  Alexei Gorokhov

发明人： Naga Bhushan ,  Alexei Gorokhov

IPC分类号： H04J11/00

CPC分类号： H04L5/0044 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0042 ,  H04L5/0048 ,  H04L5/0094

摘要： Techniques for efficiently sending data in a wireless communication system are described. Code division multiplexing (CDM) or orthogonal frequency division multiplexing (OFDM) may be selected for each traffic segment, which may correspond to specific time frequency resources. An output waveform comprised of traffic and overhead segments may be generated. Each traffic segment may carry CDM data at a chip rate if CDM is selected or OFDM data if OFDM is selected. OFDM symbols may be generated at a sample rate that may be an integer ratio of the chip rate and may have a duration that may be determined based on the traffic segment duration. The output waveform may carry CDM data and/or OFDM data on subcarriers corresponding to at least one carrier in a spectral allocation and may further carry OFDM data on remaining usable subcarriers in the spectral allocation.

摘要翻译： 描述用于在无线通信系统中有效发送数据的技术。 可以为可能对应于特定时间频率资源的每个业务段选择码分复用（CDM）或正交频分复用（OFDM）。 可以产生由流量和开销段构成的输出波形。 如果选择CDM，则每个业务段可以以码片速率携带CDM数据，如果选择OFDM，则可以携带OFDM数据。 可以以可以是码片速率的整数比率的采样率产生OFDM符号，并且可以具有可以基于业务段持续时间来确定的持续时间。 输出波形可以在频谱分配中对应于至少一个载波的子载波上携带CDM数据和/或OFDM数据，并且还可以在频谱分配中的剩余可用子载波上承载OFDM数据。

公开(公告)号：US20100246721A1

公开(公告)日：2010-09-30

申请号：US12730640

申请日：2010-03-24

申请人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Juan Montojo ,  Alexei Gorokhov ,  Naga Bhushan

发明人： Wanshi Chen ,  Aamod Dinkar Khandekar ,  Juan Montojo ,  Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04L27/00

CPC分类号： H04L1/0038 ,  H04L1/1812 ,  H04L5/0053 ,  H04W88/04

摘要： Systems and methodologies are described herein that facilitate efficient control decoding to facilitate management of cooperative relay operation in a wireless communication environment. As described herein, a relay node (RN) and/or another entity cooperating with a serving network node for respective users in a potentially assisted group can prune a search space of control decoding candidates corresponding to the respective users. For example, respective control decoding candidates corresponding to, e.g., common and/or user-specific search spaces, aggregation levels, control channel sizes, etc., can be eliminated from a reduced control search space based on various criteria. Further, sets of control decoding candidates corresponding to respective users not schedulable at a given time interval can be eliminated. In addition, control search space pruning can be performed in addition to or in place of increased cyclic redundancy check (CRC) protection for control information, thereby further decreasing the probability of false control detection.

摘要翻译： 本文描述了促进有效控制解码以便于在无线通信环境中协调中继操作的管理的系统和方法。 如本文所描述的，与潜在辅助组中的相应用户的服务网络节点协作的中继节点（RN）和/或另一个实体可以修剪对应于各个用户的控制解码候选的搜索空间。 例如，可以基于各种标准从减少的控制搜索空间中消除对应于例如公共和/或用户特定搜索空间，聚合级别，控制信道大小等的各个控制解码候选。 此外，可以消除对应于在给定时间间隔不可调度的各个用户的控制解码候选集。 此外，除了控制信息的增加的循环冗余校验（CRC）保护之外，还可以执行控制搜索空间修剪，从而进一步降低了错误控制检测的可能性。

公开(公告)号：US20090197629A1

公开(公告)日：2009-08-06

申请号：US12262022

申请日：2008-10-30

申请人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

发明人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC分类号： H04B7/00

CPC分类号： H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

摘要： Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may receive a message sent by a second station to request reduction of interference on at least one resource. In response to receiving the message, the first station may determine a first transmit power level to use for the at least one resource based on one or more factors such as a priority metric sent in the message, the buffer size at the first station, etc. The first station may send a power decision pilot on the at least one resource at a second transmit power level determined based on the first transmit power level.

摘要翻译： 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，第一站（例如，基站或终端）可以接收由第二站发送的消息以请求减少对至少一个资源的干扰。 响应于接收到消息，第一站可以基于一个或多个因素来确定用于至少一个资源的第一发射功率电平，诸如消息中发送的优先级度量，第一站的缓冲器大小等 第一站可以基于第一发射功率电平确定的第二发射功率电平在所述至少一个资源上发送功率决定导频。

公开(公告)号：US20090197588A1

公开(公告)日：2009-08-06

申请号：US12260849

申请日：2008-10-29

申请人： Aamod Khandekar ,  Avneesh Agrawal ,  Ashwin Sampath ,  Gavin B. Horn ,  Alexei Gorokhov ,  Naga Bhushan ,  Tingfang Ji

发明人： Aamod Khandekar ,  Avneesh Agrawal ,  Ashwin Sampath ,  Gavin B. Horn ,  Alexei Gorokhov ,  Naga Bhushan ,  Tingfang Ji

IPC分类号： H04W4/00 ,  H04B1/00

CPC分类号： H04W72/082 ,  H04W52/243 ,  H04W72/0426 ,  H04W84/045 ,  H04W92/20 ,  Y02D70/00

摘要： Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul.

摘要翻译： 本文描述了在无线接入网络（AN）的无线接入点（AP）之间利用回程信令来提供减少干扰和/或避免的干扰。 作为示例，AP可以发出干扰避免请求（IAR），以减少相邻AP在前向链路（FL）和/或下行链路（DL）传输上的信号干扰。 IAR可以经由回程网络和/或通过与AP或一个或多个干扰AP耦合的接入终端（AT）进行路由。 在接收到IAR时，干扰AP可以确定用于FL和/或RL传输的降低的发射功率电平并响应于IAR。 响应可以包括降低的功率级别，并且可以通过回程网络或OTA发送。 通过全面或部分采用回程网络，即使对于通过回程耦合的半计划或计划外异构网络，也可以进行干扰回避。