公开(公告)号：US07292854B2

公开(公告)日：2007-11-06

申请号：US10077613

申请日：2002-02-15

Applicant: Arnab Das ,  Farooq Ullah Khan

Inventor： Arnab Das ,  Farooq Ullah Khan

IPC: H04Q7/20

CPC classification number: H04W48/12 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0072 ,  H04L1/1812 ,  H04W4/06

Abstract: A method for transmitting control information in a wireless communication network is provided in which one or more prescribed fields in an existing control channel structure are modified to enable express signaling directly between a base station and at least one mobile station without the need to traverse a backhaul path between the base station and the base station controller. More specifically, prescribed fields in the control channel are modified to carry one or more prescribed message identifiers that convey different types of information, e.g., an identifier for indicating which mobile station is the intended recipient, an identifier for indicating the type of message being transmitted (e.g., broadcast, multicast, etc.), a message identifier indicating the available Walsh space for data transmission, and so on. In this manner, existing control channel structures and formats can accommodate many different signaling functions directed to either single or multiple mobile stations.

Abstract translation: 提供了一种用于在无线通信网络中发送控制信息的方法，其中修改了现有控制信道结构中的一个或多个规定字段，以便能够直接在基站与至少一个移动台之间进行快速信令，而无需遍历回程 基站与基站控制器之间的路径。 更具体地，修改控制信道中的规定字段以携带传达不同类型信息的一个或多个规定消息标识符，例如，用于指示哪个移动台是预期接收者的标识符，用于指示被发送的消息的类型的标识符 （例如，广播，组播等），指示用于数据传输的可用沃尔什空间的消息标识符等等。 以这种方式，现有的控制信道结构和格式可以容纳针对单个或多个移动台的许多不同的信令功能。

公开(公告)号：US20070247365A1

公开(公告)日：2007-10-25

申请号：US11621955

申请日：2007-01-10

Applicant: Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank Lane ,  Junyi Li

Inventor： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank Lane ,  Junyi Li

IPC: G01S1/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070201423A1

公开(公告)日：2007-08-30

申请号：US11621957

申请日：2007-01-10

Applicant: Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank Lane ,  Junyi Li

Inventor： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank Lane ,  Junyi Li

IPC: H04J3/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070168326A1

公开(公告)日：2007-07-19

申请号：US11486601

申请日：2006-07-14

Applicant: Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

Inventor： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

IPC: G06F17/30

CPC classification number: H04W24/10 ,  H04L1/0006 ,  H04L1/0026 ,  H04W24/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07149245B2

公开(公告)日：2006-12-12

申请号：US10133385

申请日：2002-04-29

Applicant: Kenneth C. Budka ,  Arnab Das ,  Wei Luo ,  Kamala Murti

Inventor： Kenneth C. Budka ,  Arnab Das ,  Wei Luo ,  Kamala Murti

IPC: H04B17/00

CPC classification number: H04L1/20 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026

Abstract: In the method of determining an airlink modulation and coding scheme, at least one link quality indicator is compensated, and a modulation and coding scheme is read from a table using the compensated link quality indicator. In one embodiment, the at least one link quality indicator includes bit error probability (BEP).

公开(公告)号：US07079848B2

公开(公告)日：2006-07-18

申请号：US10117498

申请日：2002-04-05

Applicant: Arnab Das ,  Farooq Ullah Khan ,  Ashwin Sampath ,  Hsuan-Jung Su

Inventor： Arnab Das ,  Farooq Ullah Khan ,  Ashwin Sampath ,  Hsuan-Jung Su

IPC: H04M1/00 ,  H04Q7/00 ,  G21C17/00

CPC classification number: H04W28/14 ,  H04W36/18 ,  H04W36/30 ,  H04W48/20

Abstract: A method that globally allocates resources of a communication system. A global fast scheduler receives global CQI information from UEs of a communication system. The global fast scheduler determines a resource allocation value and assigns a UE to any available cell site that is a member of the active set of the UE and which can service the UE in accordance with the determined resource allocation value.

Abstract translation: 全球分配通信系统资源的方法。 全局快速调度器从通信系统的UE接收全球CQI信息。 全局快速调度器确定资源分配值，并将UE分配给作为UE的活动组的成员的任何可用小区站点，并且可以根据所确定的资源分配值来为UE服务。

公开(公告)号：US09661519B2

公开(公告)日：2017-05-23

申请号：US11486601

申请日：2006-07-14

Applicant: Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

Inventor： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

IPC: H04W24/10 ,  H04L1/00 ,  H04W24/00

CPC classification number: H04W24/10 ,  H04L1/0006 ,  H04L1/0026 ,  H04W24/00

Abstract: 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.

公开(公告)号：US09338767B2

公开(公告)日：2016-05-10

申请号：US11333792

申请日：2006-01-17

Applicant: Vladimir Parizhsky ,  Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Arnab Das

Inventor： Vladimir Parizhsky ,  Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Arnab Das

IPC: H04B7/00 ,  H04W72/04 ,  H04L12/801 ,  H04W28/18 ,  H04W72/00 ,  H04W74/08 ,  H04L1/00 ,  H04L27/26 ,  H04W24/10 ,  H04W28/12 ,  H04W28/24 ,  H04W72/12

CPC classification number: H04W72/0453 ,  H04L1/0026 ,  H04L27/2602 ,  H04L47/10 ,  H04W24/02 ,  H04W24/10 ,  H04W28/12 ,  H04W28/18 ,  H04W28/24 ,  H04W72/005 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1221 ,  H04W72/1236 ,  H04W72/1242 ,  H04W72/1252 ,  H04W72/1284 ,  H04W74/0875

Abstract: Wireless terminals and base stations support multiple modes of control channel operation wherein wireless terminals are allocated different amounts of uplink resources for reporting control information. A set of control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the control channel segments associated with a single logical tone. In split tone mode, control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the control channel segments. Logical control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.

Abstract translation: 无线终端和基站支持多种模式的控制信道操作，其中无线终端被分配不同量的用于报告控制信息的上行链路资源。 无线终端利用一组控制信道段将上行链路控制信息报告传送到其服务基站附着点。 支持全频和分频模式的控制通道操作。 在全音模式下，分配与单个逻辑音调相关联的每个控制信道段的单个无线终端。 在分离音模式中，与单个逻辑音调相关联的控制信道分段被分配在不同无线终端之间，多个无线终端中的每一个接收控制信道分段的不同的非重叠子集。 可以动态地重新分配逻辑控制信道音调以进行全音色模式使用或分离音模式的使用。

公开(公告)号：US08923157B2

公开(公告)日：2014-12-30

申请号：US12264051

申请日：2008-11-03

Applicant: Arnab Das ,  Ritesh Madan ,  Sundeep Rangan ,  Sanjay Shakkottai ,  Siddharth Ray

Inventor： Arnab Das ,  Ritesh Madan ,  Sundeep Rangan ,  Sanjay Shakkottai ,  Siddharth Ray

IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/801 ,  H04L12/54 ,  H04L12/851 ,  H04L12/841 ,  H04L12/835 ,  H04L12/923 ,  H04L12/927 ,  H04L12/911 ,  H04W72/12

CPC classification number: H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04L47/283 ,  H04L47/30 ,  H04L47/70 ,  H04L47/762 ,  H04L47/803 ,  H04L47/824 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/1231

Abstract: Systems and methodologies are described that facilitate enhanced resource scheduling for a wireless communication system. As described herein, packets associated with a common flow that arrive within a predetermined time period following a leading packet associated with the flow can be grouped into respective packet bursts. Subsequently, system bandwidth, transmit power, and/or other communication resources can be scheduled based on an analysis of the respective packet bursts. As provided herein, by analyzing respective packet bursts in lieu of individual packets, computational and resource overhead required for resource scheduling can be significantly reduced. In one example described herein, a resource schedule is determined by selecting one or more flows to be assigned bandwidth from among a plurality of flows based on an analysis of packet bursts respectively associated with the flows. Sufficient bandwidth can subsequently be scheduled for the selected flows for transmission of the respectively associated packet bursts.

Abstract translation: 描述了促进无线通信系统的增强的资源调度的系统和方法。 如本文所述，与在与流相关联的前导分组之后的预定时间段内到达的公共流相关联的分组可以被分组为相应的分组突发。 随后，可以基于相应分组突发的分析来调度系统带宽，发射功率和/或其他通信资源。 如本文提供的，通过分析各个分组突发来代替各个分组，可以显着地减少资源调度所需的计算和资源开销。 在本文描述的一个示例中，基于与流分别相关联的分组突发的分析，通过从多个流中选择要分配带宽的一个或多个流来确定资源调度。 随后可以为所选择的流调度足够的带宽以传输分别相关联的分组突发。

公开(公告)号：US08712462B2

公开(公告)日：2014-04-29

申请号：US12819191

申请日：2010-06-19

Applicant: Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

Inventor： Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

IPC: H04W52/34 ,  H04W72/12

CPC classification number: H04L5/02 ,  H04L5/0058 ,  H04L5/0078

Abstract: 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).

Abstract translation: 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。