公开(公告)号：US08738981B2

公开(公告)日：2014-05-27

申请号：US12580128

申请日：2009-10-15

申请人： Alexei Y. Gorokhov ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Jilei Hou

IPC分类号： H04L1/18 ,  G08C25/02

CPC分类号： H04L1/1812 ,  H04L5/0035

摘要： Systems and methodologies are described herein that facilitate Hybrid Automatic Repeat Request (H-ARQ) scheduling and coordination in a wireless communication system. As described herein, a network node capable of cooperation with other nodes for communication to respective users can coordinate a cooperation strategy across nodes based on a H-ARQ protocol to be utilized for a given user. In the case of a synchronous H-ARQ protocol, communication can be scheduled as described herein such that initial transmissions to a user are conducted cooperatively and re-transmissions are conducted without inter-node cooperation. In the case of a H-ARQ protocol utilizing persistent assignments, transmission intervals can be calculated and utilized based on application latency requirements, backhaul link latency, or other factors. In the case of an asynchronous H-ARQ protocol, repeat transmissions can be coordinated in a similar manner to initial transmissions or conducted without inter-node cooperation based on latency sensitivity of an associated application.

摘要翻译： 本文描述了促进无线通信系统中的混合自动重传请求（H-ARQ）调度和协调的系统和方法。 如本文所述，能够与其他节点协作以便与相应用户进行通信的网络节点可以基于要给定用户使用的H-ARQ协议来协调跨节点的协作策略。 在同步H-ARQ协议的情况下，可以如本文所述来调度通信，使得对用户的初始传输进行协作地进行，并且在不进行节点间协作的情况下进行重传。 在使用持久分配的H-ARQ协议的情况下，可以基于应用等待时间要求，回程链路延迟等因素来计算和利用传输间隔。 在异步H-ARQ协议的情况下，可以以与初始传输相似的方式来协调重复传输，或者基于相关联的应用的延迟敏感度进行节点间协作。

公开(公告)号：US08644408B2

公开(公告)日：2014-02-04

申请号：US12348837

申请日：2009-01-05

申请人： Alexei Y. Gorokhov

发明人： Alexei Y. Gorokhov

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L5/0057 ,  H04B7/0478 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0073 ,  H04L5/0005 ,  H04W24/10

摘要： A communication system comprises evolved base nodes (eNBs) communicating via an over-the-air (OTA) link with low mobility user equipment (UE). A network can utilize the eNBs for cooperative beam shaping for interference nulling based upon a number of factors UE (e.g., coordinated multi-point (COMP) optimization for feedback, quality of service (QoS), fairness, etc.). The UE advantageously transmits adaptive rate and payload channel state feedback, trading accuracy versus delay based upon mobility of the UE. Channel coherence across a transmission interval (frequency and/or time invariance) provides an opportunity with sufficiently low mobility for transmitting a larger accuracy feedback report over one or more feedback reports for decoding at the eNB. Reduced quantization error can be realized via multi-level coding, one codebook multiple description coding (MDC), and use of N-best code representations from one codebook with MDC.

摘要翻译： 通信系统包括经由空中（OTA）链路与低移动性用户设备（UE）进行通信的演进基站节点（eNB）。 基于UE的多个因素（例如，用于反馈的协调多点（COMP）优化，服务质量（QoS），公平性等）），网络可以利用eNB进行协作波束整形用于干扰零位。 UE有利地基于UE的移动性发送自适应速率和有效载荷信道状态反馈，交易精度与延迟。 在传输间隔（频率和/或时间不变性）上的信道相干提供了具有足够低的移动性的机会，用于通过用于在eNB解码的一个或多个反馈报告来发送较大精度反馈报告。 可以通过多级编码，一个码本多描述编码（MDC）和使用来自一个具有MDC的码本的N个最佳代码表示来实现减少的量化误差。

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：US08265562B2

公开(公告)日：2012-09-11

申请号：US12400383

申请日：2009-03-09

申请人： Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W52/243

摘要： In a wireless communication system, short-term interference mitigation may be used to mitigate (e.g., to avoid or reduce) interference on a given link in order to improve performance of data transmission. The interference mitigation reduces transmit power of interfering transmissions so that a higher signal-to-noise-and-interference ratio (SINR) can be achieved for a desired data transmission. A node may observe high interference from an interfering node that degrades performance of data transmission sent on that link. By taking advantage of an communication path with the interfering node (e.g., wireless data/control channel, backhaul network connection, or analog broadcast signal), the transmitting node can successfully complete time critical communications while allowing the interfering node to also simultaneously communicate without reducing overall resources nor burdening any managing nodes.

摘要翻译： 在无线通信系统中，可以使用短期干扰减轻来减轻（例如，以避免或减少）给定链路上的干扰，以便提高数据传输的性能。 干扰减轻减少干扰传输的发射功率，从而可以实现更高的信噪比干扰比（SINR），用于所需的数据传输。 节点可能会观察到来自干扰节点的高干扰，从而降低在该链路上发送的数据传输的性能。 通过利用与干扰节点（例如，无线数据/控制信道，回程网络连接或模拟广播信号）的通信路径，发送节点可以成功地完成时间关键通信，同时允许干扰节点同时通信而不减少 整体资源也不负责管理节点。

公开(公告)号：US20100265913A1

公开(公告)日：2010-10-21

申请号：US12761170

申请日：2010-04-15

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

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

IPC分类号： H04W36/00

CPC分类号： H04W36/0055 ,  H04W36/0066 ,  H04W36/0072

摘要： Providing for user equipment mobility in a multi-carrier wireless network deployment is described herein. By way of example, data pertinent to mobile cell selection can be shared among base stations operating on different carrier frequencies either over-the-air or via a wired backhaul, and distributed by a base station to mobile terminals served by the base station. In one aspect, the data can be distributed over a wireless channel reserved for inter-carrier association data, whereas in other aspects, the data can be unicast to particular mobile terminals served by the base station. This can reduce or avoid a need for individual mobile terminals to tune away to a non-serving carrier for inter-carrier association or handover determinations. Accordingly, gaps in signal analysis on a serving carrier can be reduced or avoided, improving overall quality of wireless communication in a multi-carrier environment.

摘要翻译： 这里描述了在多载波无线网络部署中提供用户设备移动性。 作为示例，与移动小区选择相关的数据可以在通过无线或经由有线回程在不同载波频率上工作的基站之间共享，并且由基站分配给由基站服务的移动终端。 在一个方面，数据可以通过保留用于载波间关联数据的无线信道进行分配，而在其他方面，数据可以是单播到由基站服务的特定移动终端。 这可以减少或避免各个移动终端调谐到非服务载波以进行载波间关联或切换确定的需要。 因此，可以减少或避免在服务载波上的信号分析中的差距，从而提高多载波环境中的无线通信的整体质量。

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：US20100107028A1

公开(公告)日：2010-04-29

申请号：US12580128

申请日：2009-10-15

申请人： Alexei Y. Gorokhov ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Jilei Hou

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1812 ,  H04L5/0035

摘要： Systems and methodologies are described herein that facilitate Hybrid Automatic Repeat Request (H-ARQ) scheduling and coordination in a wireless communication system. As described herein, a network node capable of cooperation with other nodes for communication to respective users can coordinate a cooperation strategy across nodes based on a H-ARQ protocol to be utilized for a given user. In the case of a synchronous H-ARQ protocol, communication can be scheduled as described herein such that initial transmissions to a user are conducted cooperatively and re-transmissions are conducted without inter-node cooperation. In the case of a H-ARQ protocol utilizing persistent assignments, transmission intervals can be calculated and utilized based on application latency requirements, backhaul link latency, or other factors. In the case of an asynchronous H-ARQ protocol, repeat transmissions can be coordinated in a similar manner to initial transmissions or conducted without inter-node cooperation based on latency sensitivity of an associated application.

摘要翻译： 本文描述了促进无线通信系统中的混合自动重传请求（H-ARQ）调度和协调的系统和方法。 如本文所述，能够与其他节点协作以便与相应用户进行通信的网络节点可以基于要给定用户使用的H-ARQ协议来协调跨节点的协作策略。 在同步H-ARQ协议的情况下，可以如本文所述来调度通信，使得对用户的初始传输进行协作地进行，并且在不进行节点间协作的情况下进行重传。 在使用持久分配的H-ARQ协议的情况下，可以基于应用等待时间要求，回程链路延迟等因素来计算和利用传输间隔。 在异步H-ARQ协议的情况下，可以以与初始传输相似的方式来协调重复传输，或者基于相关联的应用的延迟敏感度进行节点间协作。

公开(公告)号：US20100067422A1

公开(公告)日：2010-03-18

申请号：US12557414

申请日：2009-09-10

申请人： Tamer A. Kadous ,  Michael Kohlmann ,  Alexei Y. Gorokhov ,  Jin-Su Ko

发明人： Tamer A. Kadous ,  Michael Kohlmann ,  Alexei Y. Gorokhov ,  Jin-Su Ko

IPC分类号： H04W52/02 ,  G08C17/00

CPC分类号： H04W52/0229 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

摘要： Apparatus and methods for controlling sleep mode in a wireless device are disclosed. The sleep mode is controlled using low power detection of RF beacon signals of known frequencies to reduce power consumption of the wireless device during sleep modes. Detection is achieved by using passive or low power elements in a receive chain that filters received signals allowing beacon signals of particular frequencies to pass, which are accumulated with passive or low power circuit elements requiring no external power source. The accumulated energy is compared to a threshold to determine the presence of the beacon with sleep circuitry. When the beacon is detected, the full RF receiver is triggered to wake up. Use of low power elements and passive elements, affords a beneficial increase in power savings for the wireless device, which is particularly helpful in wireless access points or relay stations that have an alternative power sourcing such as battery or solar power.

摘要翻译： 公开了一种用于在无线设备中控制睡眠模式的装置和方法。 使用已知频率的RF信标信号的低功率检测来控制睡眠模式，以减少睡眠模式期间无线设备的功耗。 通过在接收链中使用无源或低功率元件来实现检测，该接收链对接收到的信号进行滤波，允许特定频率的信标信号通过，这些信号是不需要外部电源的无源或低功率电路元件。 将累积的能量与阈值进行比较以确定具有睡眠电路的信标的存在。 当检测到信标时，触发完整的RF接收机唤醒。 使用低功率元件和无源元件，为无线设备的功率节省提供了有益的增加，这在具有替代电源（例如电池或太阳能）的无线接入点或中继站中特别有用。

公开(公告)号：US20090201826A1

公开(公告)日：2009-08-13

申请号：US12388414

申请日：2009-02-18

申请人： Alexei Y. Gorokhov ,  Tingfang Ji

发明人： Alexei Y. Gorokhov ,  Tingfang Ji

IPC分类号： H04J1/16 ,  H04W72/04

CPC分类号： H04L5/006 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0064 ,  H04L5/1438 ,  H04L25/0398

摘要： Systems and methods of scheduling sub-carriers in an OFDMA system in which a scheduler takes into account channel conditions experienced by the communication devices to optimize channel conditions. The scheduler can partition a set of sub-carriers spanning an operating bandwidth into a plurality of segments. The segments can include a plurality of global segments that each includes a distinct non-contiguous subset of the sub-carriers spanning substantially the entire operating bandwidth. One or more of the global segments can be further partitioned into a plurality of local segments that each has a bandwidth that is less than a channel coherence bandwidth. The scheduler determines channel characteristics experienced by each communication device via reporting or channel estimation, and allocates one or more segments to communication links for each device according to the channel characteristics.

摘要翻译： 在OFDMA系统中调度子载波的系统和方法，其中调度器考虑通信设备经历的信道条件以优化信道状况。 调度器可以将跨越工作带宽的一组子载波划分成多个段。 这些段可以包括多个全局段，每个全局段包括基本上跨整个工作带宽的子载波的不同的非连续子集。 一个或多个全局段可被进一步分割成多个本地段，每个本地段具有小于信道相干带宽的带宽。 调度器通过报告或信道估计来确定每个通信设备经历的信道特征，并根据信道特性为每个设备的通信链路分配一个或多个分段。

公开(公告)号：US09264097B2

公开(公告)日：2016-02-16

申请号：US12763836

申请日：2010-04-20

申请人： Alexei Y. Gorokhov ,  Avneesh Agrawal

发明人： Alexei Y. Gorokhov ,  Avneesh Agrawal

IPC分类号： H04W4/00 ,  H04B1/7103

CPC分类号： H04B1/7103 ,  H04B2201/70702

摘要： Techniques for mitigating interference in a wireless communication system are described. In an aspect, pertinent transmission parameters for a served UE may be sent to at least one interfered UE to support interference mitigation. In one design, information for at least one transmission parameter for a data transmission sent by a first cell to a first UE may be transmitted to at least one UE served by a second cell to enable the at least one UE to perform interference mitigation for the data transmission sent by the first cell to the first UE. The information may be transmitted by either the first cell or the second cell. In another aspect, a cell may send transmission parameters for a UE via a pilot. In yet another aspect, scrambling may be performed by a cell at symbol level to enable an interfered UE to distinguish between modulation symbols of desired and interfering transmissions.

摘要翻译： 描述了用于减轻无线通信系统中的干扰的技术。 在一方面，可以将所服务的UE的相关传输参数发送到至少一个受干扰的UE以支持干扰减轻。 在一种设计中，用于由第一小区向第一UE发送的用于数据传输的至少一个传输参数的信息可以被发送到由第二小区服务的至少一个UE，以使得至少一个UE能够执行干扰减轻 由第一小区向第一UE发送的数据传输。 信息可以由第一小区或第二小区发送。 在另一方面，小区可以经由导频向UE发送传输参数。 在另一方面，可以由符号级别的小区执行加扰，以使被干扰的UE能够区分期望的和干扰的传输的调制符号。