Forward error correction scheme for high rate data exchange in a wireless system
    113.
    发明授权
    Forward error correction scheme for high rate data exchange in a wireless system 有权
    用于无线系统中高速数据交换的前向纠错方案

    公开(公告)号:US06614776B1

    公开(公告)日:2003-09-02

    申请号:US09301484

    申请日:1999-04-28

    IPC分类号: H04B7216

    CPC分类号: H04L1/0066 H04L1/0041

    摘要: A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high data rate signal. Thereafter, the demultiplexer distributes portions of the coded high data rate signal to the modem processors. Each modem processor processes its respective portion of the coded signal for transmission in an independent channel.

    摘要翻译: 在无线通信系统中用于高数据传输的发射机/接收机系统包括物理层处理器,其包括FEC编码器,解复用器和多个调制解调器处理器。 FEC编码器对高数据速率信号应用纠错码。 此后,解复用器将编码的高数据速率信号的一部分分配给调制解调处理器。 每个调制解调处理器处理编码信号的各自部分以在独立信道中传输。

    Application specific traffic optimization in a wireless link
    115.
    发明授权
    Application specific traffic optimization in a wireless link 有权
    无线链路中的应用特定流量优化

    公开(公告)号:US09210616B2

    公开(公告)日:2015-12-08

    申请号:US13108481

    申请日:2011-05-16

    摘要: A packet data system such as a TCP/IP network transmits packets containing a variety of data types along links in the network. Packets are transmitted in a stream between nodes interconnected by the links connections which conform to a transport layer protocol such as TCP, UDP, and RSTP, and includes wireless links, which transmit packets using a radio frequency (RF) medium. Typical protocols, however, are usually developed to optimize throughput and minimize data error and loss over wired links, and do not lend themselves well to a wireless link. By examining the data in a packet, performance characteristics such as a port number are determined. The performance characteristics indicate the application type, and therefore, the data type, of the packets carried on the connection. Since certain data types, such as streaming audio and video, are more loss tolerant, determination of the data type is used to compute link control parameters for the wireless link which that are optimal to the type of data being transmitted over the link.

    摘要翻译: 诸如TCP / IP网络的分组数据系统沿着网络中的链路发送包含各种数据类型的分组。 分组在通过符合诸如TCP,UDP和RSTP之类的传输层协议的链路连接互连的节点之间的流中传输,并且包括使用射频(RF)介质传输分组的无线链路。 然而,通常开发典型的协议是为了优化吞吐量,并通过有线链路最小化数据错误和损失,并且不适合于无线链路。 通过检查数据包中的数据,确定端口号等性能特征。 性能特征表示连接上携带的分组的应用类型,因此表示数据类型。 由于诸如流式音频和视频之类的某些数据类型具有更大的容错能力,所以使用数据类型的确定来计算无线链路的链路控制参数,这对通过链路传输的数据类型是最佳的。

    Multi-detection of heartbeat to reduce error probability
    116.
    发明授权
    Multi-detection of heartbeat to reduce error probability 有权
    多次检测心跳以减少误差概率

    公开(公告)号:US09042400B2

    公开(公告)日:2015-05-26

    申请号:US12165422

    申请日:2008-06-30

    IPC分类号: H04L12/43 H04Q11/04 H04L5/00

    摘要: A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or ‘control hold’ state) versus a request state (i.e., ‘request to change’ state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1xEV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.

    摘要翻译: 通信系统通过在给定的时间帧内进行至少两个请求的肯定标识来改善检测具有改变通信状态的请求的指示的信号的性能。 该系统可以通过对于非请求状态(即,稳态或“控制保持”状态)与请求状态(即,“改变请求”状态)的功率电平的差异来进一步提高性能。 在一个特定应用中,基站以相当高的检测概率确定改变通信状态的请求,并且具有相当低的错误检测概率。 该系统具有减少的错误通信状态的数量,例如错误的业务信道分配。 该检测技术与1xEV-DV系统和I-CDMA系统兼容,但一般足以支持采用有线和无线通信系统中使用的各种其他通信协议的系统。

    Method and apparatus for detecting rapid changes in signaling path environment
    117.
    发明授权
    Method and apparatus for detecting rapid changes in signaling path environment 失效
    用于检测信令路径环境快速变化的方法和装置

    公开(公告)号:US08755473B2

    公开(公告)日:2014-06-17

    申请号:US09772176

    申请日:2001-01-29

    IPC分类号: H04L1/00 H04B1/10

    摘要: A mobile station measures at least one modulation attribute of at least one signal transmitted across a signaling path of a wireless link between the stations. Because the signal travels on the signaling path between the stations, rapid changes in the modulation attribute can be used to determine both (i) motions of the mobile station and (ii) changes in the base station or mobile station environments. The stations adjust at least one parameter affecting the performance of the wireless link to compensate for the rapid changes.

    摘要翻译: 移动站测量通过站之间的无线链路的信令路径发送的至少一个信号的至少一个调制属性。 因为信号在站之间的信令路径上传播,所以可以使用调制属性的快速变化来确定移动台的运动(i)和(ii)基站或移动台环境中的变化。 站点调整影响无线链路性能的至少一个参数,以补偿快速更改。

    Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences
    119.
    发明授权
    Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences 有权
    使用正交序列选择性传输交通数据的方法,装置和系统

    公开(公告)号:US08638877B2

    公开(公告)日:2014-01-28

    申请号:US13306547

    申请日:2011-11-29

    IPC分类号: H04L27/00 H04B1/69 H04J11/00

    摘要: An access unit transmits a first channel, a second channel and a third channel. The first channel is an access channel and the second channel carries traffic data. The third channel is transmitted on a condition that the access unit has not allocated resources for the second channel. The access unit produces an indication for transmission on the third channel. The transmitted indication is produced by a data value of one for a duration of at least one time slot and orthogonal sequences. The indication indicates that the access unit is requesting to be allocated the second channel to transmit traffic data.

    摘要翻译: 接入单元发送第一信道,第二信道和第三信道。 第一信道是接入信道,第二信道承载业务数据。 第三信道在接入单元尚未为第二信道分配资源的条件下发送。 接入单元产生用于在第三信道上传输的指示。 所发送的指示由至少一个时隙和正交序列的持续时间的数据值1产生。 该指示表示接入单元正在请求分配第二信道以发送业务数据。

    Wireless channel allocation in a base station processor
    120.
    发明授权
    Wireless channel allocation in a base station processor 有权
    基站处理器中的无线信道分配

    公开(公告)号:US08521862B2

    公开(公告)日:2013-08-27

    申请号:US13366973

    申请日:2012-02-06

    IPC分类号: G06F15/173

    摘要: A system and method are provided for allocating wireless channels in a base station processor to messages sent between a subscriber and the base station processor in a wireless network. A latency period is determined corresponding to a return message to be received from a responsive node in response to an outgoing message sent from a sender via the base station processor. A latency manager in the base station processor computes the latency period and stores the latency period in an allocation table. A scheduler schedules a channel to be available at the end of the latency period indicated in the allocation table. At the end of the latency period, the return message is received and the scheduler allocates a channel as defined in the allocation table. The scheduled channel is used to transmit the message to or from the corresponding subscriber.

    摘要翻译: 提供了一种系统和方法,用于在基站处理器中为无线网络中的订户和基站处理器之间发送的消息分配无线信道。 响应于从发送者经由基站处理器发送的输出消息,确定响应于从响应节点接收的返回消息的等待时间。 基站处理器中的延迟管理器计算等待时间并将等待时间周期存储在分配表中。 调度器在分配表中指示的等待时间结束时调度可用的信道。 在等待时间结束时,接收到返回消息,并且调度器分配如分配表中所定义的信道。 调度信道用于向或从相应用户发送消息。