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1. 发明授权

US5933414A Method to control jitter in high-speed packet-switched networks 失效
标题翻译：控制高速分组交换网络抖动的方法
公开(公告)号：US5933414A
公开(公告)日：1999-08-03
申请号：US738647
申请日：1996-10-29
申请人： Leonidas Georgiadis , Roch A. Guerin , Vinod Gerard John Peris , Rajendran Rajan , Subir Varma
发明人： Leonidas Georgiadis , Roch A. Guerin , Vinod Gerard John Peris , Rajendran Rajan , Subir Varma
IPC分类号： H04L1/20 , H04L12/56 , H04Q11/04 , H04L5/22
CPC分类号： H04L1/205 , H04Q11/0478 , H04L2012/5649 , H04L2012/5652
摘要： The present invention addresses the issue of controlling delay variations (jitter) in packet-switched networks by enhancing the capabilities of existing scheduling policies. The idea is to use a few bits in the header of packets to send jitter control information to the downstream network elements, so that the delay variation caused by the upstream network element, is compensated for by the downstream network element. The key point to observe is that packets (or cells in ATM) may be small, and therefore, not contain many bits in the header that can be used for jitter control. We describe a unique scheme, that utilizes the bits that are available for jitter control in an efficient manner, allowing for the desired jitter to be obtained with as few bits as possible.
摘要翻译：本发明通过增强现有调度策略的能力来解决分组交换网络中的延迟变化（抖动）的控制问题。想法是在报文头中使用几个比特来向下游网元发送抖动控制信息，从而使上游网元产生的延迟变化由下游网元补偿。要观察的关键点是分组（或ATM中的小区）可能很小，因此在报头中不包含可用于抖动控制的多个位。我们描述了一种独特的方案，它以有效的方式利用可用于抖动控制的位，从而允许以尽可能少的位获得所需的抖动。

2. 发明授权

US5796719A Traffic flow regulation to guarantee end-to-end delay in packet switched networks 失效
标题翻译：流量调节以保证分组交换网络的端到端延迟
公开(公告)号：US5796719A
公开(公告)日：1998-08-18
申请号：US659458
申请日：1996-06-06
申请人： Vinod Gerard John Peris , Leonidas Georgiadis , Roch Andre Guerin , Subir Varma
发明人： Vinod Gerard John Peris , Leonidas Georgiadis , Roch Andre Guerin , Subir Varma
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L12/5602 , H04Q11/0478 , H04L2012/5637 , H04L2012/5649 , H04L2012/5679 , H04L2012/568
摘要： The present invention relates to the issue of providing end-to-end delay guarantees in a multi-node communication system. More specifically, the present invention addresses the problem of specifying operational parameters of rate-controlled service disciplines in a communication network in order to efficiently provide end-to-end delay guarantees. The key contribution is a method for specifying leaky bucket parameters as well as scheduling delays at each node, which are used as inputs to the rate-controlled service discipline.
摘要翻译：本发明涉及在多节点通信系统中提供端到端延迟保证的问题。更具体地，本发明解决了在通信网络中指定速率控制的服务规则的操作参数的问题，以便有效地提供端到端延迟保证。关键贡献是一种指定漏斗参数以及每个节点的调度延迟的方法，它们被用作速率控制服务规则的输入。

3. 发明授权

US08467407B2 Protocol for allocating upstream slots over a link in a point-to-multipoint communication system 有权
公开(公告)号：US08467407B2
公开(公告)日：2013-06-18
申请号：US13360334
申请日：2012-01-27
申请人： Subir Varma
发明人： Subir Varma
IPC分类号： H04L12/413
摘要： A system for controlling a contention state for a communication link between a base station controller and customer premises equipment in point-to-multipoint communication. The contention state is controlled using a state machine, which includes a grant pending absent state in which a unicast request slot is maintained open for use by the customer premises equipment. During the grant pending absent state, the customer premises equipment sends no upstream data to the base station controller but can use the unicast request slot to request a data slot for sending upstream data to the base station controller. In the grant pending state, the customer premises equipment preferably uses piggybacking to request grant of a next data slot while sending upstream data to the base station controller.

4. 发明授权

US08045561B1 Two stage traffic scheduling 有权
标题翻译：两级流量调度
公开(公告)号：US08045561B1
公开(公告)日：2011-10-25
申请号：US12112713
申请日：2008-04-30
申请人： Subir Varma , Mehdi Alasti
发明人： Subir Varma , Mehdi Alasti
IPC分类号： H04L12/28 , G01R31/08
CPC分类号： H04L47/621 , H04L47/14 , H04L47/2408 , H04L47/2416 , H04L47/60 , H04L47/6215 , H04L47/623 , H04L49/90
摘要： A first traffic flow directed to a first wireless device is received. A second traffic flow directed to a second wireless device is received. These traffic flows comprise at least a first service flow classification and a second service flow classification. The first traffic flow and the second traffic flow are scheduled based on the first service flow classification and the second flow classification. This produces first and second device scheduled flows. The first and second device scheduled flows are classified into a plurality of flow classes. The plurality of flow classes comprises at least a first flow class and a second flow class. The first scheduled flow and the second scheduled flow are scheduled based on the first flow class and the second flow class. This produces an aggregate traffic flow.
摘要翻译：定向到第一无线设备的第一业务流被接收。定向到第二无线设备的第二业务流被接收。这些业务流包括至少第一业务流分类和第二业务流分类。基于第一业务流分类和第二流分类来调度第一业务流和第二业务流。这产生了第一和第二设备预定流。第一和第二设备调度流被分为多个流类别。多个流类别包括至少第一流类和第二流类。基于第一流类和第二流类调度第一调度流和第二调度流。这将产生一个汇总的流量。

5. 发明授权

US07206292B2 Integrated self-optimizing multi-parameter and multi-variable point to multipoint communication system 有权
标题翻译：集成自优化多参数多变量点对多点通信系统
公开(公告)号：US07206292B2
公开(公告)日：2007-04-17
申请号：US11316415
申请日：2005-12-22
申请人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
发明人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
IPC分类号： H04J1/16 , H04J3/14 , H04J3/16 , H04L1/00 , H04L12/26 , H04Q7/00 , H04J3/22
CPC分类号： H04W72/005 , H04L1/0001 , H04L1/0002 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0015 , H04L1/1816 , H04L1/1825 , H04L1/1854 , H04L1/1867 , H04L1/1893 , H04L2001/0093 , H04W28/0252 , H04W28/18 , H04W52/04 , H04W72/0413 , H04W72/082 , H04W76/40 , H04W88/08
摘要： The invention provides a method and system for adaptive point to multipoint wireless communication. The wireless physical layer and the wireless media-access-control (MAC) layer collectively include a set of parameters, which are adaptively modified by a base station controller for communication with a plurality of customer premises equipment. The base station controller adjusts communication with each customer premises equipment individually and adaptively in response to changes in characteristics of communication, including physical characteristics, amount of communication traffic, and nature of application for the communication traffic.
摘要翻译：本发明提供一种用于自适应点对多点无线通信的方法和系统。无线物理层和无线介质访问控制（MAC）层共同地包括一组参数，其由基站控制器自适应地修改以与多个客户驻地设备通信。基站控制器响应于通信特性的变化（包括物理特性，通信量的量，以及通信业务的应用性质）自适应地调整与每个客户驻地设备的通信。

6. 发明申请

US20060268885A1 Automatic retransmission and error recovery for packet oriented point-to-multipoint communication 有权
公开(公告)号：US20060268885A1
公开(公告)日：2006-11-30
申请号：US11412412
申请日：2006-04-26
申请人： Subir Varma
发明人： Subir Varma
IPC分类号： H04L12/56
CPC分类号： H04L1/08 , H04L1/0006 , H04L1/0025 , H04L1/1607 , H04L1/1854 , H04L1/1867 , H04L1/1883 , H04L1/1887 , H04L2001/0093 , H04W72/1278
摘要： Point to multipoint wireless communication, including automatic retransmission and error recovery for packet oriented point to multipoint communication, which integrates adaptive and dynamic responsiveness for parameters for automatic retransmission using wireless communication. A wireless communication link is divided into a downstream portion and an upstream portion. Parameters are selected for automatic retransmission independently for the downstream portion and the upstream portion of the wireless communication link. A BSC controls the selection of parameters for automatic retransmission for all CPE within a cell. As part of a TDD frame, in which the BSC and the CPE share communication bandwidth using a TDMA technique, the BSC includes its selection of parameters for automatic retransmission to be used by CPE within a control section of the TDD frame. The BSC dynamically and adaptively determines new selected parameters for automatic retransmission, in response to conditions of a wireless communication link with each independent CPE. The BSC dynamically and adaptively allocates acknowledgement time slots within the upstream portion of the TDD frame, for use by each selected CPE. The BSC allocates some portion of the upstream bandwidth as a shared resource and some portion of the upstream bandwidth as unshared when there are messages received but not yet acknowledged. The BSC dynamically and adaptively response to acknowledgement and non-acknowledgement messages from each selected CPE, to integrate the automatic retransmission protocol with the TDD frame and the TDMA technique used within that frame.

7. 发明授权

US07068639B1 Synchronized plural channels for time division duplexing 有权
标题翻译：同步多路信道用于时分双工
公开(公告)号：US07068639B1
公开(公告)日：2006-06-27
申请号：US09664029
申请日：2000-09-19
申请人： Subir Varma , Joseph Hakim
发明人： Subir Varma , Joseph Hakim
IPC分类号： H04B7/212
CPC分类号： H04W72/1263 , H04W72/1205
摘要： A method of managing TDD across plural channels. In the method, frames are synchronized across the plural channels so that upstream frames and downstream frames coincide across the plural channels. Preferable, one channel is assigned to each of plural CPEs. Each CPE receives MAP messages on its assigned channel. A base station controller preferably generates the MAP messages. The MAP messages instruct the CPEs to switch channels so as to receive data bursts. The base station controller preferably includes a centralized scheduler that allocates channels and slots in those channels to the CPEs for receipt of the data bursts. Also, a method of receiving TDD messages. According to the method, CPEs switch channels based on received media access protocol messages so as to receive data bursts on plural channels. The channel to which a CPE switches need not be the same channel as the one on which the CPE receives its MAP messages. Additionally, systems, base stations, CPEs, and/or software that utilizes and/or implements these methods.
摘要翻译：一种跨多个信道管理TDD的方法。在该方法中，跨多个信道同步帧，使得上游帧和下游帧在多个信道之间重合。优选地，向多个CPE中的每一个分配一个信道。每个CPE在其分配的信道上接收MAP消息。基站控制器优选地生成MAP消息。 MAP消息指示CPE切换信道以接收数据突发。基站控制器优选地包括集中式调度器，其将这些信道中的信道和时隙分配给CPE以接收数据突发。另外，接收TDD消息的方法。根据该方法，CPE基于接收到的媒体接入协议消息来切换信道，以便在多个信道上接收数据突发。 CPE交换机的信道不需要与CPE接收其MAP消息的信道相同的信道。另外，利用和/或实现这些方法的系统，基站，CPE和/或软件。

8. 发明授权

US06636488B1 Automatic retransmission and error recovery for packet oriented point-to-multipoint communication 有权
标题翻译：针对分组定向的点对多点通信的自动重传和错误恢复
公开(公告)号：US06636488B1
公开(公告)日：2003-10-21
申请号：US09689271
申请日：2000-10-11
申请人： Subir Varma
发明人： Subir Varma
IPC分类号： H04B7005
CPC分类号： H04L1/08 , H04L1/0006 , H04L1/0025 , H04L1/1607 , H04L1/1854 , H04L1/1867 , H04L1/1883 , H04L1/1887 , H04L2001/0093 , H04W72/1278
摘要： Point to multipoint wireless communication, including automatic retransmission and error recovery for packet oriented point to multipoint communication, which integrates adaptive and dynamic responsiveness for parameters for automatic retransmission using wireless communication. A wireless communication link is divided into a downstream portion and an upstream portion. Parameters are selected for automatic retransmission independently for the downstream portion and the upstream portion of the wireless communication link. A BSC controls the selection of parameters for automatic retransmission for all CPE within a cell. As part of a TDD frame, in which the BSC and the CPE share communication bandwidth using a TDMA technique, the BSC includes its selection of parameters for automatic retransmission to be used by CPE within a control section of the TDD frame. The BSC dynamically and adaptively determines new selected parameters for automatic retransmission, in response to conditions of a wireless communication link with each independent CPE. The BSC dynamically and adaptively allocates acknowledgement time slots within the upstream portion of the TDD frame, for use by each selected CPE. The BSC allocates some portion of the upstream bandwidth as a shared resource and some portion of the upstream bandwidth as unshared when there are messages received but not yet acknowledged. The BSC dynamically and adaptively response to acknowledgement and non-acknowledgement messages from each selected CPE, to integrate the automatic retransmission protocol with the TDD frame and the TDMA technique used within that frame.
摘要翻译：点对多点无线通信，包括针对分组定向的点对多点通信的自动重传和错误恢复，其对使用无线通信的自动重传的参数进行自适应和动态响应。无线通信链路被分为下游部分和上游部分。为无线通信链路的下游部分和上游部分独立地选择参数进行自动重传。 BSC控制单元内所有CPE自动重发参数的选择。作为其中BSC和CPE使用TDMA技术共享通信带宽的TDD帧的一部分，BSC包括其在TDD帧的控制部分内由CPE使用的自动重传参数的选择。响应于与每个独立CPE的无线通信链路的条件，BSC动态地并且自适应地确定用于自动重传的新的所选择的参数。 BSC动态地并自适应地在TDD帧的上游部分内分配确认时隙，供每个选择的CPE使用。当接收到消息但尚未确认时，BSC将上行带宽的一部分分配为共享资源，并将上游带宽的一部分分配为非共享。 BSC动态地并且自适应地响应来自每个选择的CPE的确认和非确认消息，以将自动重传协议与该帧中使用的TDD帧和TDMA技术集成。

9. 发明申请

US20110305187A1 AUTOMATIC RETRANSMISSION AND ERROR RECOVERY FOR PACKET ORIENTED POINT-TO-MULTIPOINT COMMUNICATION 有权
标题翻译：分组点对多点通信的自动恢复和错误恢复
公开(公告)号：US20110305187A1
公开(公告)日：2011-12-15
申请号：US13218078
申请日：2011-08-25
申请人： Subir Varma
发明人： Subir Varma
IPC分类号： H04W4/06
CPC分类号： H04L1/08 , H04L1/0006 , H04L1/0025 , H04L1/1607 , H04L1/1854 , H04L1/1867 , H04L1/1883 , H04L1/1887 , H04L2001/0093 , H04W72/1278
摘要： Point to multipoint wireless communication, including automatic retransmission and error recovery for packet oriented point to multipoint communication, which integrates adaptive and dynamic responsiveness for parameters for automatic retransmission using wireless communication. A wireless communication link is divided into a downstream portion and an upstream portion. Parameters are selected for automatic retransmission independently for the downstream portion and the upstream portion of the wireless communication link. A BSC controls the selection of parameters for automatic retransmission for all CPE within a cell. As part of a TDD frame, in which the BSC and the CPE share communication bandwidth using a TDMA technique, the BSC includes its selection of parameters for automatic retransmission to be used by CPE within a control section of the TDD frame. The BSC dynamically and adaptively determines new selected parameters for automatic retransmission, in response to conditions of a wireless communication link with each independent CPE. The BSC dynamically and adaptively allocates acknowledgement time slots within the upstream portion of the TDD frame, for use by each selected CPE. The BSC allocates some portion of the upstream bandwidth as a shared resource and some portion of the upstream bandwidth as unshared when there are messages received but not yet acknowledged. The BSC dynamically and adaptively response to acknowledgement and non-acknowledgement messages from each selected CPE, to integrate the automatic retransmission protocol with the TDD frame and the TDMA technique used within that frame.
摘要翻译：点对多点无线通信，包括针对分组定向的点对多点通信的自动重传和错误恢复，其对使用无线通信的自动重传的参数进行自适应和动态响应。无线通信链路被分为下游部分和上游部分。为无线通信链路的下游部分和上游部分独立地选择参数进行自动重传。 BSC控制单元内所有CPE自动重发参数的选择。作为其中BSC和CPE使用TDMA技术共享通信带宽的TDD帧的一部分，BSC包括其在TDD帧的控制部分内由CPE使用的自动重传参数的选择。响应于与每个独立CPE的无线通信链路的条件，BSC动态地并且自适应地确定用于自动重传的新的所选择的参数。 BSC动态地并自适应地在TDD帧的上游部分内分配确认时隙，供每个选择的CPE使用。当接收到消息但尚未确认时，BSC将上行带宽的一部分分配为共享资源，并将上游带宽的一部分分配为非共享。 BSC动态地并且自适应地响应来自每个选择的CPE的确认和非确认消息，以将自动重传协议与该帧中使用的TDD帧和TDMA技术集成。

10. 发明授权

US07366133B1 Integrated, self-optimizing, multi-parameter/multi-variable point-to-multipoint communication system [II] 有权
标题翻译：集成，自优化，多参数/多变量点对多点通信系统[II]
公开(公告)号：US07366133B1
公开(公告)日：2008-04-29
申请号：US09620826
申请日：2000-07-21
申请人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
发明人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
IPC分类号： H04L7/00
CPC分类号： H04L1/0009 , H04L1/0003 , H04L1/0007 , H04L1/0017 , H04L1/1825 , H04L2001/0093
摘要： A method and system for adaptive point to multipoint wireless communication. The method and system integrate adaptive and dynamic responsiveness for communication parameters related to multiple characteristics of wireless communication links, both for a single sender and a single receiver, and for sets of multiple senders and multiple receivers. Moreover, the method and system are self-optimizing in the sense that they are adaptively and dynamically responsive to results of attempts to optimize parameters related to multiple characteristics of wireless communication links. Multiple characteristics of wireless communication links are optimized simultaneously, in that the optimal set of values for a plurality of N characteristics, rather fan N individual optimal values for each characteristic, is adaptively and dynamically selected.
摘要翻译：一种自适应点对多点无线通信的方法和系统。该方法和系统针对与单个发送器和单个接收器以及多个发送器和多个接收器的集合的无线通信链路的多个特性相关的通信参数的自适应和动态响应性进行集成。此外，该方法和系统是自我优化的，因为它们对于优化与无线通信链路的多个特性相关的参数的尝试的结果自适应地和动态地响应。无线通信链路的多个特性被同时优化，因为适应性地和动态地选择多个N特征的值的最佳值，而不是每个特征的风扇N个体最优值。

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