System, method and apparatus for determining if data from a source has arrived properly at a destination in a time division multiplex (TDM) communication network
    2.
    发明授权
    System, method and apparatus for determining if data from a source has arrived properly at a destination in a time division multiplex (TDM) communication network 有权
    用于确定来自源的数据是否已经在时分复用(TDM)通信网络中的目的地处正确地到达的系统,方法和装置

    公开(公告)号:US07561542B2

    公开(公告)日:2009-07-14

    申请号:US11383013

    申请日:2006-05-12

    IPC分类号: H04B7/212

    CPC分类号: H04B7/2656

    摘要: A first time division multiplex (TDM) time slot is provided which is defined as a bi-directional channel for use in a TDM network including a source node and a destination node. The source node can transmit data to the destination node in a first portion of a first TDM time slot. In one implementation, a second portion of the same first TDM time slot can be reserved for the destination node to transmit information to the source node. The destination node can determine whether the data from the source node has arrived properly, and then transmit an indication message to the source node in the second portion of the same first TDM time slot to indicate whether the data from the source node has arrived properly at the destination node.

    摘要翻译: 提供了第一时分复用(TDM)时隙,其被定义为在包括源节点和目的地节点的TDM网络中使用的双向信道。 源节点可以在第一TDM时隙的第一部分中向目的地节点发送数据。 在一个实现中,相同的第一TDM时隙的第二部分可以被保留用于目的地节点以将信息发送到源节点。 目的地节点可以确定来自源节点的数据是否已经正确到达,然后在相同的第一TDM时隙的第二部分中向源节点发送指示消息,以指示来自源节点的数据是否已正确到达 目的地节点。

    System and method for selecting a medium access technique for transmitting packets over a network
    3.
    发明授权
    System and method for selecting a medium access technique for transmitting packets over a network 有权
    用于选择通过网络传输分组的介质访问技术的系统和方法

    公开(公告)号:US07920586B2

    公开(公告)日:2011-04-05

    申请号:US11238572

    申请日:2005-09-29

    IPC分类号: H04B7/212 H04L12/413

    摘要: A system and method for transmitting packets in a network (100). A node (102, 106, 107) in the network (100) accesses uses one of a plurality of medium access techniques for transmitting packets on the network (100). The node (102, 106, 107) separates packets to be transmitted into classes based on at least one characteristic of the packets and selects one of the medium access techniques for each class of packets based on whether the medium access technique provides improved transmission efficiency for the at least one characteristic of the packets in the class. The node (102, 106, 107) transmits the packets in each respective class using the respective selected medium access technique.

    摘要翻译: 一种用于在网络(100)中传送分组的系统和方法。 网络(100)中的节点(102,106,107)访问使用多个媒体接入技术中的一种来传输网络上的分组(100)。 节点(102,106,107)基于分组的至少一个特性将要发送的分组分离成类,并且基于媒体接入技术是否提供改进的传输效率来为每一类分组选择一种媒体接入技术 该类中的数据包的至少一个特征。 节点(102,106,107)使用相应的所选介质访问技术在每个相应类中发送分组。

    Use of orthogonal or near orthogonal codes in reverse link
    4.
    发明授权
    Use of orthogonal or near orthogonal codes in reverse link 有权
    在反向链路中使用正交或近似正交码

    公开(公告)号:US09496915B2

    公开(公告)日:2016-11-15

    申请号:US13600931

    申请日:2012-08-31

    摘要: An apparatus and method for use with a shared access communication channel is disclosed. A wireless network device receives signals and recovers data from a first plurality of subscriber units and a second plurality of subscriber units in a time interval. Received signals from the first plurality of subscriber units are distinguishable by having unique pseudo noise (PN) sequence with respect to others of the first plurality of subscriber units. Received signals the second plurality of subscriber units are distinguishable by a unique orthogonal sequence with respect to others of the second plurality of subscriber units. Received signals are distinguished between the first and second plurality of subscriber units based on detection of an orthogonal sequence present only in the received signals from the second plurality of subscriber units.

    摘要翻译: 公开了一种与共享接入通信信道一起使用的装置和方法。 无线网络设备在时间间隔内接收来自第一多个用户单元和第二多个用户单元的信号并恢复数据。 通过相对于第一多个用户单元中的其他用户单元具有唯一的伪噪声(PN)序列来区分来自第一多个用户单元的接收信号。 接收信号,第二多个用户单元可通过相对于第二多个用户单元中的其他用户单元的唯一正交序列来区分。 基于仅在来自第二多个用户单元的接收信号中存在的正交序列的检测来区分第一和第二多个用户单元之间的接收信号。

    Bandwidth efficient system and method for ranging nodes in a wireless communication network
    5.
    发明授权
    Bandwidth efficient system and method for ranging nodes in a wireless communication network 有权
    无线通信网络中测距节点的带宽有效系统和方法

    公开(公告)号:US07382804B2

    公开(公告)日:2008-06-03

    申请号:US11197950

    申请日:2005-08-05

    IPC分类号: H04J3/06

    摘要: The present invention provides a bandwidth efficient system and method of measuring the range between nodes (102, 106, 107) in a wireless communications network (100) with one-way data transfer, where each node (102, 106, 107) periodically transmits a message that contains information regarding neighboring nodes (102, 106, 107) from which any prior messages have been received by the transmitting node (102, 106, 107). A node (102, 106, 107) receives the messages transmitted from neighboring nodes (102, 106, 107) in the network (100), and records the times of arrival of the received messages. The node (102, 106, 107) receiving those messages can thus determine the respective distances between itself and the neighboring nodes (102, 106, 107) based on the respective time of arrivals of the received messages and the respective information included in the respective messages.

    摘要翻译: 本发明提供了一种利用单向数据传输来测量无线通信网络(100)中的节点(102,106,107)之间的范围的带宽有效系统和方法,其中每个节点(102,106,107)周期性地发送 包含关于相邻节点(102,106,107)的信息的消息,由发射节点(102,106,107)已经接收了任何先前消息。 节点(102,106,107)接收从网络(100)中的相邻节点(102,106,107)发送的消息,并且记录所接收消息的到达时间。 因此,接收这些消息的节点(102,106,107)可以基于接收到的消息的相应到达时间和包括在相应节点(102,106,107)中的相应信息来确定其相邻节点(102,106,107)之间的相应距离 消息。

    Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
    6.
    发明授权
    Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure 有权
    用于允许利用正交信道结构的CDMA反向链路的软切换的方法和装置

    公开(公告)号:US08676131B2

    公开(公告)日:2014-03-18

    申请号:US13069174

    申请日:2011-03-22

    IPC分类号: H04B1/00

    摘要: Method and apparatus for base stations and subscriber units allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit.

    摘要翻译: 用于基站和用户单元的方法和装置允许使用正交信道结构的CDMA反向链路的软切换。 订户单元通过反向链路向基站发送正交编码的信号。 给定基站提供反向链路信号的定时偏移的定时控制。 基于至少一个准则,对准控制器确定给定的基站应该将定时控制切换到另一个基站,并且随后进行软切换处理。 响应于用户单元从给定基站到另一个基站的软切换的命令或消息,用户单元对编码信号的定时进行粗略的定时调整。 用户单元可以基于来自基站控制定时的反馈来进行精确的定时调整。 多个基站可以向用户单元提供功率控制反馈。

    Apparatus, system and method for communicating information in a wireless communication network
    7.
    发明授权
    Apparatus, system and method for communicating information in a wireless communication network 有权
    用于在无线通信网络中传送信息的装置,系统和方法

    公开(公告)号:US08014415B2

    公开(公告)日:2011-09-06

    申请号:US11324097

    申请日:2005-12-30

    摘要: Techniques are provided for communicating a data stream in a wireless communication network. A source divides the data stream into a first data sub-stream and a second data sub-stream. The first data sub-stream can be modulated using a first modulation technique to generate a first modulated data sub-stream, and the second data sub-stream can be modulated using a second modulation technique to generate a second modulated data sub-stream. A destination receives the first data sub-stream over a first frequency band, and receives the second data sub-stream over a second frequency band. The destination demodulates the first data sub-stream using a first demodulation technique to generate a first demodulated data sub-stream, and demodulates the second data sub-stream using a second demodulation technique to generate a second demodulated data sub-stream. The destination then combines the first demodulated data sub-stream and the second demodulated data sub-stream to generate the data stream.

    摘要翻译: 提供了用于在无线通信网络中传送数据流的技术。 源将数据流划分为第一数据子流和第二数据子流。 可以使用第一调制技术来调制第一数据子流以产生第一调制数据子流,并且可以使用第二调制技术来调制第二数据子流,以生成第二调制数据子流。 目的地在第一频带上接收第一数据子流,并在第二频带上接收第二数据子流。 目的地使用第一解调技术解调第一数据子流,以产生第一解调数据子流,并且使用第二解调技术对第二数据子流进行解调,以产生第二解调数据子流。 目的地然后组合第一解调数据子流和第二解调数据子流以生成数据流。

    System and method for performing distributed signal classification for a multi-hop cognitive communication device
    8.
    发明授权
    System and method for performing distributed signal classification for a multi-hop cognitive communication device 有权
    用于执行多跳认知通信设备的分布式信号分类的系统和方法

    公开(公告)号:US07742446B2

    公开(公告)日:2010-06-22

    申请号:US11252097

    申请日:2005-10-17

    IPC分类号: H04W4/00

    摘要: A system and method for cognitive communication device operation. In accordance with the system and method, a node (102, 106, 107) that communicates in a wireless multihopping communication network (100) uses a receiver (302, 402, 502, 602) to acquire a digital sample of a communication signal, and extracts at least one feature of the digital sample. The node (102, 106, 107) employs a classifier (306, 406, 506) to determine the signal type, and a transmitter (108) to send feature vectors including information representing the signal type to other nodes (102, 106, 107) in the network (100).

    摘要翻译: 一种用于认知通信设备操作的系统和方法。 根据系统和方法,在无线多​​时通信网络(100)中通信的节点(102,106,107)使用接收机(302,402,502,602)来获取通信信号的数字样本, 并提取数字样本的至少一个特征。 节点(102,106,107)采用分类器(306,406,506)来确定信号类型,以及发射机(108),发送包括表示信号类型的信息的特征向量到其他节点(102,106,107 )在网络(100)中。

    METHOD FOR MEASURING THE TIME OF ARRIVAL OF RADIO SIGNALS
    9.
    发明申请
    METHOD FOR MEASURING THE TIME OF ARRIVAL OF RADIO SIGNALS 有权
    测量无线电信号到达时间的方法

    公开(公告)号:US20100026576A1

    公开(公告)日:2010-02-04

    申请号:US12181727

    申请日:2008-07-29

    IPC分类号: G01S1/24

    摘要: A method for measuring the time of arrival of radio signals within a network comprises receiving the received signals including at least a first pseudorandom code and a second pseudorandom code from at least one other node; identifying a frequency difference between the node and the other node using a phase difference between each of a maximum value of a cross-correlation provided by the first pseudorandom code and the second pseudorandom code; applying the frequency difference to the reception of the received signal; and calculating the time of arrival of the received signal comprising a time, measured with a local clock, when the cross-correlation has achieved the maximum value.

    摘要翻译: 用于测量无线电信号在网络内的到达时间的方法包括从至少一个其他节点接收包括至少第一伪随机码和第二伪随机码的接收信号; 使用由所述第一伪随机码提供的互相关的最大值和所述第二伪随机码之间的相位差来识别所述节点与所述另一节点之间的频率差; 将所述频率差应用于所述接收信号的接收; 以及当互相关已经达到最大值时,计算包括用本地时钟测量的时间的接收信号的到达时间。

    USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK
    10.
    发明申请
    USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK 有权
    在反向链接中使用正交或邻近正交代码

    公开(公告)号:US20090213905A1

    公开(公告)日:2009-08-27

    申请号:US12433309

    申请日:2009-04-30

    IPC分类号: H04B1/707

    摘要: An apparatus for use with a shared access communication channel is disclosed. The chipping rate of a first group of terminals is determined. Transmissions on the shared access communication channel are encoded using first pseudorandom noise (PN) code and a phase shift at the first chipping rate and an orthogonal spreading code having a chipping rate less than the first chipping rate. The apparatus may receive a feedback channel assignment and may receive an indication of a change in timing on the assigned feedback channel.

    摘要翻译: 公开了一种与共享接入通信信道一起使用的装置。 确定第一组终端的切片率。 使用第一伪随机噪声(PN)码和第一码片切换速率的相移以及具有小于第一码片率的码片率的正交扩展码对共享接入通信信道上的传输进行编码。 该装置可以接收反馈信道分配,并且可以在所分配的反馈信道上接收定时改变的指示。