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1. 发明授权

US09265049B2 Method and apparatus for using uplink control information for inter-cell decoding and interference cancellation 有权
标题翻译：使用上行链路控制信息进行小区间解码和干扰消除的方法和装置
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。

2. 发明授权

US09019903B2 Optimization to support uplink coordinated multi-point 有权
标题翻译：优化支持上行协调多点
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。

3. 发明授权

US08761824B2 Multi-carrier operation in a wireless communication network 有权
标题翻译：无线通信网络中的多载波操作
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。

4. 发明授权

US08417252B2 Method and apparatus for interference reporting in a N-MIMO communication system 有权
标题翻译：用于N-MIMO通信系统中的干扰报告的方法和装置
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。

5. 发明授权

US08295250B2 Code interleaving for a structured code 有权
标题翻译：结构化代码的代码交错
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。

6. 发明申请

US20110086663A1 SELECTIVE TRANSMISSION OF POWER DECISION PILOT IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中电力决策导论的选择性传输
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。

7. 发明申请

US20090325626A1 MULTI-CARRIER OPERATION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：无线通信网络中的多载波操作
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。

8. 发明申请

US20090245331A1 SIGNALING MESSAGE TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：无线通信网络中的信令消息传输
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。

9. 发明授权

US09537613B2 Acknowledgment based on short cell radio network temporary identifier 有权
标题翻译：基于短小区无线电网络临时标识符的确认
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。

10. 发明授权

US08867999B2 Downlink interference cancellation methods 有权
标题翻译：下行干扰消除方法
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。

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