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51. 发明授权

US08320928B2 Opportunistic uplink scheduling 失效
公开(公告)号：US08320928B2
公开(公告)日：2012-11-27
申请号：US13218647
申请日：2011-08-26
申请人： Xinzhou Wu , Sundeep Rangan , Prashanth Hande , Arnab Das , Junyi Li
发明人： Xinzhou Wu , Sundeep Rangan , Prashanth Hande , Arnab Das , Junyi Li
IPC分类号： H04W88/02
CPC分类号： H04W72/1231 , H04W72/1268
摘要： Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).

52. 发明申请

US20080146241A1 UPLINK SCHEDULING FOR OFDM SYSTEMS 有权
标题翻译： OFDM系统的UPLINK调度
公开(公告)号：US20080146241A1
公开(公告)日：2008-06-19
申请号：US11611881
申请日：2006-12-17
申请人： Arnab Das , Prashanth Hande , Sundeep Rangan , Xinzhou Wu
发明人： Arnab Das , Prashanth Hande , Sundeep Rangan , Xinzhou Wu
IPC分类号： H04Q7/20 , G08C15/00 , H04B1/00 , H04J4/00
CPC分类号： H04L1/0002 , H04L1/0017 , H04L5/023 , H04L27/2601 , H04W52/26 , H04W72/1205 , H04W72/1268
摘要： Systems and methodologies are described that facilitate scheduling transmission, upon an uplink traffic channel in Orthogonal Frequency Division Multiplexing (OFDM) environments. Uplink scheduling may include user selection and rate selection. Further, user selection may be based on a token mechanism that provides control over fairness of allocation to disparate users. Moreover, rate selection may be based upon considerations of uplink interference mitigation.
摘要翻译：描述了在正交频分复用（OFDM）环境中的上行链路业务信道上促进调度传输的系统和方法。上行链路调度可以包括用户选择和速率选择。此外，用户选择可以基于提供对分配给不同用户的公平性的控制的令牌机制。此外，速率选择可以基于上行链路干扰减轻的考虑。

53. 发明申请

US20070247365A1 METHODS AND APPARATUS RELATING TO WIRELESS TERMINAL BEACON SIGNAL GENERATION, TRANSMISSION, AND/OR USE 有权
标题翻译：与无线终端信标信号发生，传输和/或使用相关的方法和设备
公开(公告)号：US20070247365A1
公开(公告)日：2007-10-25
申请号：US11621955
申请日：2007-01-10
申请人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank Lane , Junyi Li
发明人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank Lane , Junyi Li
IPC分类号： G01S1/00
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： A portable wireless terminal generates and transmits a beacon signal. The beacon signal includes a sequence of beacon signal bursts, each beacon signal burst including one or more beacon symbols. A beacon symbol is transmitted using the air link resources of a beacon symbol transmission unit at a relatively high transmission power level with respect to user data symbols transmitted from the same wireless terminal, thus facilitating easy detection by other wireless terminals. The beacon symbols of the beacon signal occupy a small fraction of the total available air link resources. Beacon signals can, and sometimes do, convey wireless terminal identification information, via the location of the beacon symbols within the portion of the air link resource reserved for beacon symbol transmission units.
摘要翻译：便携式无线终端生成并发送信标信号。信标信号包括信标信号脉冲序列，每个信标信号脉冲串包括一个或多个信标符号。相对于从同一无线终端发送的用户数据符号，以相对高的发送功率电平的信标符号发送单元的空中链路资源发送信标符号，便于其他无线终端的容易检测。信标信号的信标符号占据总可用空中链路资源的一小部分。信标信号可以并且有时可以通过为为信标符号传输单元预留的空中链路资源的部分内的信标符号的位置传送无线终端识别信息。

54. 发明申请

US20070201423A1 METHODS AND APPARATUS RELATING TO TIMING AND/OR SYNCHRONIZATION INCLUDING THE USE OF WIRELESS TERMINALS BEACON SIGNALS 有权
标题翻译：与时序和/或同步相关的方法和装置，包括使用无线终端信标信号
公开(公告)号：US20070201423A1
公开(公告)日：2007-08-30
申请号：US11621957
申请日：2007-01-10
申请人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank Lane , Junyi Li
发明人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank Lane , Junyi Li
IPC分类号： H04J3/00
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Wireless terminal beacon signaling is used to achieve timing synchronization between two wireless terminals in a wireless communication system, e.g., in an ad hoc network lacking a centralized timing reference. An exemplary timing structure used by an individual wireless terminal includes a beacon transmission time interval, a beacon monitoring time interval and a silence time interval. A first wireless terminal monitoring for beacon signals from other wireless terminals, detects a beacon signal portion from a second wireless terminal and determines a timing adjustment as a function of the detected beacon signal portion. The first wireless terminal applies the determined timing adjustment, e.g., time shifting its timing structure, such that its beacon signal can be detected by the second wireless terminal. Implementation of the determined timing adjustment sets the timing structures of the two wireless terminals to have a fixed relationship thereby allowing for coordinated communications including a peer-to-peer communications session.
摘要翻译：无线终端信标信令用于实现无线通信系统中的两个无线终端之间的定时同步，例如在缺乏集中定时参考的自组织网络中。单个无线终端使用的示例性定时结构包括信标发送时间间隔，信标监视时间间隔和静默时间间隔。监测来自其他无线终端的信标信号的第一无线终端从第二无线终端检测信标信号部分，并根据检测到的信标信号部分确定定时调整。第一无线终端应用确定的定时调整，例如时移其定时结构，使得其信标信号可被第二无线终端检测。确定的定时调整的实现将两个无线终端的定时结构设置为具有固定关系，从而允许包括对等通信会话的协调通信。

55. 发明申请

US20070168326A1 Efficient reporting of information in a wireless communication system 有权
标题翻译：在无线通信系统中有效地报告信息
公开(公告)号：US20070168326A1
公开(公告)日：2007-07-19
申请号：US11486601
申请日：2006-07-14
申请人： Arnab Das , Sundeep Rangan , Pablo Anigstein , Junyi Li , Sathyadev Venkata Uppala , Rajiv Laroia
发明人： Arnab Das , Sundeep Rangan , Pablo Anigstein , Junyi Li , Sathyadev Venkata Uppala , Rajiv Laroia
IPC分类号： G06F17/30
CPC分类号： H04W24/10 , H04L1/0006 , H04L1/0026 , H04W24/00
摘要： Techniques for efficiently sending reports in a wireless communication system are described. Reports may be sent repetitively in accordance with a reporting format. A terminal receives an assignment of a control channel used to send reports and determines a reporting format to use based on the assignment. The reporting format indicates a specific sequence of reports sent in specific locations of a control channel frame. The terminal generates a set of reports for each reporting interval and arranges the set of reports in accordance with the reporting format. The terminal repetitively sends a plurality of sets of reports in a plurality of reporting intervals. Reports may also be sent adaptively based on operating conditions. An appropriate reporting format may be selected based on the operating conditions of the terminal, which may be characterized by environment (e.g., mobility), capabilities, QoS, and/or other factors.
摘要翻译：描述在无线通信系统中有效地发送报告的技术。可以按照报告格式重复发送报告。终端接收用于发送报告的控制信道的分配，并根据分配确定要使用的报告格式。报告格式指示在控制信道帧的特定位置发送的特定报告序列。终端为每个报告间隔生成一组报告，并根据报告格式安排报告集。终端在多个报告间隔重复发送多组报告。报告也可以根据操作条件自适应地发送。可以基于可以由环境（例如，移动性），能力，QoS和/或其他因素来表征的终端的操作条件来选择适当的报告格式。

56. 发明授权

US08712462B2 Downlink scheduling in fractional frequency reuse (FFR) systems 有权
$Downlink scheduling in fractional frequency reuse (FFR) systems$
标题翻译：分数频率复用（FFR）系统中的下行链路调度
公开(公告)号：US08712462B2
公开(公告)日：2014-04-29
申请号：US12819191
申请日：2010-06-19
申请人： Ritesh Kumar Madan , Siddharth Ray , Niranjan N. Ratnakar , Arnab Das
发明人： Ritesh Kumar Madan , Siddharth Ray , Niranjan N. Ratnakar , Arnab Das
IPC分类号： H04W52/34 , H04W72/12
CPC分类号： H04L5/02 , H04L5/0058 , H04L5/0078
摘要： An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).
摘要翻译：公开了一种用于确定无线通信系统中每个频带中所有用户的最佳带宽分数的装置和方法，以最大化用户实用程序的净和。用户实用程序是用户的平均速率的函数，其中不同的平均规则可以用于不同的用户。计算最优调度器策略的标准方法涉及对于N个流具有O（N3）级的复杂度的凸优化问题的解。这种方法对于具有大量流量的在线实现是不可行的。本工作的方法采用了一种在O（N）时间内获得最佳带宽分数的有效计算算法。该特征使得该方法适用于诸如LTE（长期演进）和UMB（超移动宽带）的宽带蜂窝系统中的实现。

57. 发明申请

US20110312360A1 DOWNLINK SCHEDULING IN FRACTIONAL FREQUENCY REUSE (FFR) SYSTEMS 有权
标题翻译：在频率重复（FFR）系统中的下行调度
公开(公告)号：US20110312360A1
公开(公告)日：2011-12-22
申请号：US12819191
申请日：2010-06-19
申请人： Ritesh Kumar Madan , Siddharth Ray , Niranjan N. Ratnakar , Arnab Das
发明人： Ritesh Kumar Madan , Siddharth Ray , Niranjan N. Ratnakar , Arnab Das
IPC分类号： H04B7/00
CPC分类号： H04L5/02 , H04L5/0058 , H04L5/0078
摘要： An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).
摘要翻译：公开了一种用于确定无线通信系统中每个频带中所有用户的最佳带宽分数的装置和方法，以最大化用户实用程序的净和。用户实用程序是用户的平均速率的函数，其中不同的平均规则可以用于不同的用户。计算最优调度器策略的标准方法涉及对于N个流具有O（N3）级的复杂度的凸优化问题的解。这种方法对于具有大量流量的在线实现是不可行的。本工作的方法采用了一种在O（N）时间内获得最佳带宽分数的有效计算算法。该特征使得该方法适用于诸如LTE（长期演进）和UMB（超移动宽带）的宽带蜂窝系统中的实现。

58. 发明授权

US09578654B2 Methods and apparatus related to selecting reporting alternative in a request report 有权
标题翻译：与请求报告中选择报告备选方法有关的方法和设备
公开(公告)号：US09578654B2
公开(公告)日：2017-02-21
申请号：US11610060
申请日：2006-12-13
申请人： Arnab Das , Vincent Park , Yunus Hussain , Samel Celebi
发明人： Arnab Das , Vincent Park , Yunus Hussain , Samel Celebi
IPC分类号： H04W4/00 , H04W72/12 , H04L12/801 , H04W28/18 , H04W72/00 , H04L1/06 , H04L27/00 , H04L27/26 , H04L1/00 , H04W24/10 , H04W28/02 , H04W28/12 , H04W28/24
CPC分类号： H04W72/1284 , H04L1/0026 , H04L1/0073 , H04L1/0687 , H04L1/0693 , H04L27/2602 , H04L27/2646 , H04L47/10 , H04L2027/002 , H04W24/10 , H04W28/0278 , H04W28/12 , H04W28/18 , H04W28/24 , H04W72/005 , H04W72/1221 , H04W72/1236 , H04W72/1242 , H04W72/1252
摘要： Methods and apparatus related to wireless terminal reporting alternative selection for a fixed bit size control information request report, e.g., a 4 bit uplink traffic channel request report, are described. A wireless terminal maintains a plurality of different request groups corresponding to uplink traffic to be transmitted. The same request report format includes a plurality of reporting alternatives, different reporting alternatives corresponding to different request groups. Backlog can and sometimes does exist simultaneously corresponding to request groups corresponding to different reporting alternatives. The wireless terminal uses priority information associated with the request groups having non-zero backlog to select a reporting alternative. In some embodiments, at least some of the request groups have priorities which are calculated by the wireless terminal and change as a function of determined transmission deadline information.
摘要翻译：描述与无线终端报告相关的方法和装置，用于固定比特大小控制信息请求报告的替代选择，例如4比特上行业务信道请求报告。无线终端维护与要发送的上行流量相对应的多个不同的请求组。相同的请求报告格式包括多个报告备选方案，对应于不同请求组的不同报告备选。积压可以并且有时确实同时对应于对应于不同报告替代方案的请求组。无线终端使用与具有非零积压的请求组相关联的优先级信息来选择报告替代方案。在一些实施例中，至少一些请求组具有由无线终端计算的优先级，并且根据所确定的传输期限信息而改变。

59. 发明授权

US09226182B2 Methods systems, and devices for robustness improvement in a mobile ad hoc network using reputation-based routing 有权
标题翻译：使用基于声誉路由的移动自组织网络的方法系统和设备进行鲁棒性改进
公开(公告)号：US09226182B2
公开(公告)日：2015-12-29
申请号：US14324955
申请日：2014-07-07
申请人： Arnab Das , Santanu Das
发明人： Arnab Das , Santanu Das
IPC分类号： H04L12/28 , H04W24/04 , H04W12/00 , H04W12/10 , H04W40/24 , H04W40/04 , H04W84/18 , H04W40/14 , H04W40/12 , H04L12/721
CPC分类号： H04W40/06 , H04B7/15507 , H04L45/123 , H04W12/00 , H04W12/10 , H04W24/04 , H04W40/04 , H04W40/12 , H04W40/14 , H04W40/246 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/22 , Y02D70/23 , Y02D70/32 , Y02D70/34
摘要： Aspect of the present disclosure include A Mobile Ad Hoc Network (MANET) in which an intermediate relay node may engage in discreet packet-dropping practices for selfish (e.g., to conserve power) or other reasons. Each node in such a MANET has a dynamic reputation level known to all other nodes. Embodiments include improving the overall performance or robustness of such a MANET by adopting a routing strategy (e.g. routing protocol) which considers the reputation levels of intermediate relaying nodes in determining the best route from a source to a destination. Embodiments of the present disclosure also include a system for discovering a route between two nodes in a communication network. One or more nodes: (i) determine a reputation level of each neighboring node; (ii) sending a route discovery message that is addressed to the destination node to one neighboring node having a highest reputation level.
摘要翻译：本公开的方面包括A移动Ad Hoc网络（MANET），其中中间中继节点可以参与用于自私（例如，节省功率）或其他原因的谨慎分组实践。这种MANET中的每个节点具有所有其他节点已知的动态信誉级别。实施例包括通过采用在确定从源到目的地的最佳路由时考虑中间中继节点的信誉级别的路由策略（例如路由协议）来改善这种MANET的整体性能或鲁棒性。本公开的实施例还包括用于发现通信网络中的两个节点之间的路由的系统。一个或多个节点：（i）确定每个相邻节点的信誉级别; （ii）将寻址到目的地节点的路由发现消息发送到具有最高信誉级别的一个相邻节点。

60. 发明授权

US08995466B2 Communications methods and apparatus for using a single logical link with multiple physical layer connections 有权
标题翻译：用于使用具有多个物理层连接的单个逻辑链路的通信方法和装置
公开(公告)号：US08995466B2
公开(公告)日：2015-03-31
申请号：US11316601
申请日：2005-12-22
申请人： Pablo Anigstein , Murari Srinivasan , Sathyadev Venkata Uppala , Rakesh Champalal Dugad , Arnab Das , Vladimir Parizhsky , Rajiv Laroia
发明人： Pablo Anigstein , Murari Srinivasan , Sathyadev Venkata Uppala , Rakesh Champalal Dugad , Arnab Das , Vladimir Parizhsky , Rajiv Laroia
IPC分类号： H04J3/22 , H04W88/08 , H04L25/14 , H04W88/10
CPC分类号： H04W88/08 , H04L25/14 , H04W88/10
摘要： A base station uses a common link layer controller for multiple physical attachment points to facilitate concurrent wireless connections between different sector physical attachment points and a wireless terminal using the same link layer link. A wireless terminal maintains multiple simultaneous wireless connections for the same link layer link. A packet of user data is fragmented into a plurality of grouping of MAC frames, thus a packet portion can be communicated over a connection. A single packet is sometimes communicated with different portions conveyed over different wireless connections. Automatic repeat request, using the common link layer controller, allows for retransmission of a packet portion over a different connection than it was initially transmitted over. A wireless terminal sends connection request messages including lists of link layer identifiers associated with the wireless terminal. A base station responds with an indication of whether logical link state was already present.
摘要翻译：基站使用用于多个物理连接点的公共链路层控制器来促进不同扇区物理连接点之间的并发无线连接以及使用相同链路层链路的无线终端。无线终端为相同的链路层链路维护多个同时的无线连接。用户数据的分组被分段成多个MAC帧分组，因此可以通过连接来传送分组部分。有时通过不同的部分在不同的无线连接上传送单个分组。使用公共链路层控制器的自动重发请求允许通过不同于最初发送的连接重传分组部分。无线终端发送包括与无线终端相关联的链路层标识符的连接请求消息。基站响应是否存在逻辑链路状态的指示。

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