公开(公告)号：US06987729B1

公开(公告)日：2006-01-17

申请号：US09569911

申请日：2000-05-11

申请人： Nandu Gopalakrishnan ,  Teck H. Hu ,  Ashok N. Rudrapatna ,  Pengfei Zhu

发明人： Nandu Gopalakrishnan ,  Teck H. Hu ,  Ashok N. Rudrapatna ,  Pengfei Zhu

IPC分类号： G08C15/00

CPC分类号： H04W72/02 ,  H04W24/00 ,  H04W72/04

摘要： A method and apparatus are provided for dynamically controlling a high speed wireless communication system to optimize utilization of system resources and increase system throughput. The invention operates to determine an allocation of wireless transmission resources to each user application served by the wireless system in a manner to optimize transmission resources while meeting required QoS criteria for the served user application. After all user applications have been provided a transmission resource allocation in this manner, the total transmission resources so allocated are determined and compared with a ceiling transmission resource level for the wireless system. A portion of the difference between the ceiling and currently allocated transmission resource levels is then made available, according to the invention, to the served user applications in proportion to the initial allocation provided each user application. An admission control methodology is also provided which is implemented in a cooperative relationship with the further resource allocation process of the invention.

摘要翻译： 提供了一种用于动态控制高速无线通信系统以优化系统资源利用率并提高系统吞吐量的方法和装置。 本发明用于确定无线传输资源对由无线系统服务的每个用户应用的分配，以便优化传输资源同时满足服务用户应用的所需QoS标准。 在以这种方式提供了所有用户应用程序的传输资源分配之后，确定如此分配的总传输资源并将其与无线系统的天花板传输资源级别进行比较。 根据本发明，天花板和当前分配的传输资源水平之间的差异的一部分随着向每个用户应用提供的初始分配成比例地提供给所服务的用户应用。 还提供了与本发明的进一步的资源分配过程的协作关系实现的准入控制方法。

公开(公告)号：US06952410B2

公开(公告)日：2005-10-04

申请号：US09793219

申请日：2001-02-26

申请人： Nandu Gopalakrishnan ,  Ashok N. Rudrapatna

发明人： Nandu Gopalakrishnan ,  Ashok N. Rudrapatna

IPC分类号： H04B7/26 ,  H04J3/00 ,  H04Q7/38 ,  H04B7/216

CPC分类号： H04B7/2628

摘要： A method of providing an efficient channel structure for a communication system that uses codes to define its communication channels. Available codes form a code space that is equally divided into M tiers based on load conditions; M is an integer equal to 1 or greater. Information is scheduled to be transmitted during a particular time slot and is assigned to a particular tier. The information is transmitted during the scheduled time slot using all of the codes of the assigned tier.

摘要翻译： 一种为使用代码定义其通信信道的通信系统提供有效的信道结构的方法。 可用代码形成基于负载条件均等地分为M层的代码空间; M是等于1或更大的整数。 信息被安排在特定时隙期间传送，并被分配给特定的层。 在调度的时隙期间使用分配层的所有代码来传送信息。

公开(公告)号：US08467330B2

公开(公告)日：2013-06-18

申请号：US13086796

申请日：2011-04-14

申请人： Nandu Gopalakrishnan ,  Dandan Wang

发明人： Nandu Gopalakrishnan ,  Dandan Wang

IPC分类号： H04B7/14

CPC分类号： H04W72/1226 ,  H04W28/06

摘要： The present invention provides a method of scheduling guaranteed bit rate and/or maximum bit rate applications. Embodiments of the method may include setting, for a mobile node during a time interval, a first weight equal to a sum of a previous first weight associated with the mobile node during a previous time interval and a correction factor that is a linear function of a difference between a first bit rate and an indication of a throughput of the mobile node. Embodiments of the method may also include scheduling communication with the mobile node based on the first weight.

摘要翻译： 本发明提供一种调度保证比特率和/或最大比特率应用的方法。 该方法的实施例可以包括针对移动节点在时间间隔期间设置等于先前时间间隔期间与移动节点相关联的先前第一权重之和的第一加权和作为一个线性函数的校正因子 第一比特率与移动节点的吞吐量指示之间的差异。 该方法的实施例还可以包括基于第一权重来调度与移动节点的通信。

公开(公告)号：US20120201205A1

公开(公告)日：2012-08-09

申请号：US12931652

申请日：2011-02-07

申请人： Nandu Gopalakrishnan ,  Anil M. Rao ,  James Paul Seymour

发明人： Nandu Gopalakrishnan ,  Anil M. Rao ,  James Paul Seymour

IPC分类号： H04W72/12

CPC分类号： H04W28/06 ,  H04L1/1816 ,  H04L1/1887 ,  H04L65/1016 ,  H04L65/607 ,  H04L69/04 ,  H04W72/00

摘要： A method is provided a wireless system for reliably transmitting context information in robust header compression at low signal energies. More particularly, the methodology of the invention provides an elongated virtual Transmission Time Interval (Super TTI) for the first few (in particular, the first) non-compressed packet (that includes upper layer headers) of a packet stream transmitted using ROHC compression. Improved reception reliability for the uncompressed packet, in particular to decode the headers, results by application to the Super TTI of a combination of TTI Bundling techniques, RLC segmentation and association with multiple HARQ processes and use of enough HARQ rounds.

摘要翻译： 提供了一种用于在低信号能量下可靠地传送鲁棒报头压缩中的上下文信息的无线系统的方法。 更具体地，本发明的方法为使用ROHC压缩传输的分组流的前几个（特别是第一个）非压缩分组（包括上层报头）提供了一个细长的虚拟传输时间间隔（Super TTI）。 改进了未压缩分组的接收可靠性，特别是解码报头，通过应用于超级TTI的TTI捆绑技术，RLC分段和与多个HARQ进程的关联以及使用足够的HARQ轮次的结果的结果。

公开(公告)号：US20100215108A1

公开(公告)日：2010-08-26

申请号：US12392724

申请日：2009-02-25

申请人： Krishna Balachandran ,  Nandu Gopalakrishnan ,  Joseph H. Kang ,  Achilles Kogiantis

发明人： Krishna Balachandran ,  Nandu Gopalakrishnan ,  Joseph H. Kang ,  Achilles Kogiantis

IPC分类号： H04K1/10

CPC分类号： H04B7/0452 ,  H04B7/0689 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/024

摘要： Improved ranking and grouping techniques are disclosed for communication systems such as a multiple input multiple output system. For instance, techniques are disclosed for ranking and grouping users that are eligible for single-user and/or multiple-user transmissions. In one case, ranking and grouping are performed independently and, in another case, ranking and grouping are performed jointly.

摘要翻译： 对诸如多输入多输出系统的通信系统公开了改进的排名和分组技术。 例如，公开了用于对符合单用户和/或多用户传输的用户进行排名和分组的技术。 在一种情况下，独立执行排名和分组，在另一种情况下，共同执行排名和分组。

公开(公告)号：US08363593B2

公开(公告)日：2013-01-29

申请号：US10289048

申请日：2002-11-06

申请人： Wenfeng Zhang ,  Jung-Tao Liu ,  Nandu Gopalakrishnan

发明人： Wenfeng Zhang ,  Jung-Tao Liu ,  Nandu Gopalakrishnan

IPC分类号： H04W4/00

CPC分类号： H04W52/16 ,  H04B7/2637 ,  H04W48/08 ,  H04W48/10 ,  H04W52/325 ,  H04W72/042

摘要： A system and method for wireless communication includes multiplexing an EUDC downlink control channel so that it is transmitted like a downlink dedicated channel (DL-DPCH). The EUDC downlink control channel can be multiplexed with the DL-DPCH by code or by both code and time. The EUDC downlink control channel may be multiplexed with a downlink dedicated physical data channel (DL-DPDCH), a downlink dedicated physical control channel (DL-DPCCH), or both. In one embodiment, the EUDC downlink control channel is multiplexed by adding a multicode channel to a current DL-DPCH and treating the EUDC downlink control channel as a dedicated channel with power control functionality.

摘要翻译： 一种用于无线通信的系统和方法包括多路复用EUDC下行链路控制信道，使其像下行链路专用信道（DL-DPCH）一样被发送。 EUDC下行链路控制信道可以通过代码或代码和时间与DL-DPCH进行复用。 EUDC下行链路控制信道可以与下行链路专用物理数据信道（DL-DPDCH），下行链路专用物理控制信道（DL-DPCCH）或两者复用。 在一个实施例中，通过向当前DL-DPCH添加多码信道并且将EUDC下行控制信道视为具有功率控制功能的专用信道来对EUDC下行链路控制信道进行复用。

公开(公告)号：US08296617B2

公开(公告)日：2012-10-23

申请号：US12380379

申请日：2009-02-25

申请人： Krishna Balachandran ,  Nandu Gopalakrishnan ,  Joseph Kang ,  Achilles Kogiantis

发明人： Krishna Balachandran ,  Nandu Gopalakrishnan ,  Joseph Kang ,  Achilles Kogiantis

IPC分类号： H04L1/18

CPC分类号： H04L1/1887 ,  H04L1/1812

摘要： A method for implementation of HARQ between a transmitting node and a receiving node in a communication network is provided. HARQ processes may be selected from a list for instantiation according to a policy that may deviate from strict first-in, first-out processing of packets. The greater flexibility that this affords may lead to improved efficiency in the use of transmission resources.

摘要翻译： 提供了一种用于在通信网络中的发送节点和接收节点之间实现HARQ的方法。 可以根据可能偏离分组的严格先进先出处理的策略从用于实例化的列表中选择HARQ进程。 这种提供的更大的灵活性可能会提高传输资源的使用效率。

公开(公告)号：US08144667B2

公开(公告)日：2012-03-27

申请号：US11645590

申请日：2006-12-27

申请人： Francis Dominique ,  Nandu Gopalakrishnan ,  Srinivas Kadaba ,  Hongwei Kong ,  Walid Nabhane

发明人： Francis Dominique ,  Nandu Gopalakrishnan ,  Srinivas Kadaba ,  Hongwei Kong ,  Walid Nabhane

IPC分类号： H04B7/216

CPC分类号： H04W52/223 ,  H04B17/373

摘要： One embodiment includes determining a channel quality prediction error indicative a channel quality for a first time interval. The first time interval includes of a plurality of subframes, and the channel quality prediction error is calculated based on a first channel quality indicator associated with a first sub-frame and a second channel quality indicator associated with a second sub-frame. The first subframe and the second sub-frame are temporally spaced from one another. For example, the first subframe and the second subframe are temporally spaced apart by at least the length of the first time interval. More specifically, the second subframe may be received the first time interval after the first subframe.

摘要翻译： 一个实施例包括确定指示第一时间间隔的信道质量的信道质量预测误差。 第一时间间隔包括多个子帧，并且基于与第一子帧相关联的第一信道质量指示符和与第二子帧相关联的第二信道质量指示符来计算信道质量预测误差。 第一子帧和第二子帧在时间上彼此间隔开。 例如，第一子帧和第二子帧在时间上间隔至少第一时间间隔的长度。 更具体地，可以在第一子帧之后的第一时间间隔接收第二子帧。

公开(公告)号：US07331009B2

公开(公告)日：2008-02-12

申请号：US10778765

申请日：2004-02-13

申请人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Nandu Gopalakrishnan ,  Jaehyeong Kim ,  Emina Soljanin

发明人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Nandu Gopalakrishnan ,  Jaehyeong Kim ,  Emina Soljanin

IPC分类号： G08C25/02 ,  H04L1/18

CPC分类号： H04L1/1819 ,  H04L1/1845 ,  H04L1/20

摘要： A method is provided to accurately predict the probability of successfully recovering frames of (coded) information received over a wireless link, without having to decode the frame. This method includes receiving a first encoded signal and predicting link errors based on characteristics of the first encoded signal and variations in these characteristics before decoding the first encoded signal.

摘要翻译： 提供了一种方法来准确地预测成功地恢复通过无线链路接收的（编码）信息的帧的概率，而不必对帧进行解码。 该方法包括：在解码第一编码信号之前，基于第一编码信号的特性和这些特性的变化来接收第一编码信号和预测链路误差。

公开(公告)号：US07023899B2

公开(公告)日：2006-04-04

申请号：US09853000

申请日：2001-05-10

申请人： Arnab Das ,  Nandu Gopalakrishnan ,  Farooq Ullah Khan

发明人： Arnab Das ,  Nandu Gopalakrishnan ,  Farooq Ullah Khan

IPC分类号： H04B1/707 ,  H04B7/216

CPC分类号： H04L1/0071 ,  H04B2201/70701 ,  H04L1/0061 ,  H04L1/007 ,  H04L1/0072 ,  H04L25/03866

摘要： A method for reliably transmitting signaling information is provided. One type of signaling information is transmitted over a primary control channel. The signaling information that is to be transmitted over the primary control channel is defined as a set of particular information. Other signaling information are conveyed over a secondary control channel. Prior to transmission, the information to be conveyed over the secondary channel is scrambled in accordance with a particular scrambling procedure that indicates the information that is to be sent over the primary control channel. The scrambling is thus used to encode the information content of the primary control channel into the information of the secondary control channel thereby further protecting the integrity of the information being conveyed over both control channels.