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：US08379583B2

公开(公告)日：2013-02-19

申请号：US12695571

申请日：2010-01-28

申请人： Alexei Y. Gorokhov ,  Amir Farajidana ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

发明人： Alexei Y. Gorokhov ,  Amir Farajidana ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

IPC分类号： H04W4/00 ,  H04B1/00

CPC分类号： H04L5/0003 ,  H04L5/0014 ,  H04L5/0037 ,  H04L5/0091 ,  H04L25/0202 ,  H04L25/0224

摘要： Aspects are disclosed for multiplexing disparate wireless terminals. Resource blocks are mapped according to a hopping pattern. A first and second pair of physical resource blocks are allocated such that the first pair is associated with a first hopping index pair, whereas the second pair is associated with a second hopping index pair. For this embodiment, the first and second hopping index pairs are inversely symmetrical to each other. A pair of distributed resource blocks is also allocated. An assignment is then scheduled that includes a physical resource allocation and a virtual resource allocation. Aspects for operating a wireless terminal are also disclosed. Here, a communication that includes a resource allocation and a reference signal is received. A minimum resource allocation granularity is ascertained from the communication, and a joint channel estimation is based on the reference signal and is a function of the minimum resource allocation granularity.

摘要翻译： 公开了用于复用不同的无线终端的方面。 根据跳频模式映射资源块。 分配第一和第二对物理资源块，使得第一对与第一跳跃索引对相关联，而第二对与第二跳跃索引对相关联。 对于该实施例，第一和第二跳变指数对彼此是反对称的。 还分配了一对分布式资源块。 然后调度包括物理资源分配和虚拟资源分配的分配。 还公开了用于操作无线终端的方面。 这里，接收包括资源分配和参考信号的通信。 从通信确定最小资源分配粒度，并且联合信道估计基于参考信号，并且是最小资源分配粒度的函数。

公开(公告)号：US20100142466A1

公开(公告)日：2010-06-10

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： H04W72/04

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：US08693429B2

公开(公告)日：2014-04-08

申请号：US12750556

申请日：2010-03-30

申请人： Juan Montojo ,  Amir Farajidana ,  Alexei Y. Gorokhov ,  Kapil Bhattad ,  Ravi Palanki

发明人： Juan Montojo ,  Amir Farajidana ,  Alexei Y. Gorokhov ,  Kapil Bhattad ,  Ravi Palanki

IPC分类号： H04W4/00

CPC分类号： H04L5/005 ,  H04L5/0014 ,  H04L5/0051 ,  H04L25/0226

摘要： Apparatus and methods for generation and use of reference signals in a wireless communications system are described. A group-specific reference signal pattern may be generated for provision to a group of UEs or terminals in communication with an eNodeB or base station. The reference signal may be generated based on system parameters. Reference signals may be generated to span multiple contiguous physical resource blocks.

摘要翻译： 描述了在无线通信系统中用于生成和使用参考信号的装置和方法。 可以生成组特定参考信号模式，以提供到与eNodeB或基站通信的一组UE或终端。 可以基于系统参数生成参考信号。 可以生成参考信号以跨越多个连续的物理资源块。

公开(公告)号：US20100195600A1

公开(公告)日：2010-08-05

申请号：US12695571

申请日：2010-01-28

申请人： Alexei Y. Gorokhov ,  Amir Farajidana ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

发明人： Alexei Y. Gorokhov ,  Amir Farajidana ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

IPC分类号： H04W72/04 ,  H04W40/00

CPC分类号： H04L5/0003 ,  H04L5/0014 ,  H04L5/0037 ,  H04L5/0091 ,  H04L25/0202 ,  H04L25/0224

摘要： Aspects are disclosed for multiplexing disparate wireless terminals. Resource blocks are mapped according to a hopping pattern. A first and second pair of physical resource blocks are allocated such that the first pair is associated with a first hopping index pair, whereas the second pair is associated with a second hopping index pair. For this embodiment, the first and second hopping index pairs are inversely symmetrical to each other. A pair of distributed resource blocks is also allocated. An assignment is then scheduled that includes a physical resource allocation and a virtual resource allocation. Aspects for operating a wireless terminal are also disclosed. Here, a communication that includes a resource allocation and a reference signal is received. A minimum resource allocation granularity is ascertained from the communication, and a joint channel estimation is based on the reference signal and is a function of the minimum resource allocation granularity.

摘要翻译： 公开了用于复用不同的无线终端的方面。 根据跳频模式映射资源块。 分配第一和第二对物理资源块，使得第一对与第一跳跃索引对相关联，而第二对与第二跳跃索引对相关联。 对于该实施例，第一和第二跳变指数对彼此是反对称的。 还分配了一对分布式资源块。 然后调度包括物理资源分配和虚拟资源分配的分配。 还公开了用于操作无线终端的方面。 这里，接收包括资源分配和参考信号的通信。 从通信确定最小资源分配粒度，并且联合信道估计基于参考信号，并且是最小资源分配粒度的函数。

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：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：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：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：US20110086663A1

公开(公告)日：2011-04-14

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

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。