Dynamic frequency selection in a wireless communication network

    公开(公告)号:US07158759B2

    公开(公告)日:2007-01-02

    申请号:US10011004

    申请日:2001-12-03

    CPC classification number: H04W16/10 H04W36/06 H04W36/30

    Abstract: A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.

    Initiation of a MIMO communication
    103.
    发明授权
    Initiation of a MIMO communication 有权
    启动MIMO通信

    公开(公告)号:US08913678B2

    公开(公告)日:2014-12-16

    申请号:US13613392

    申请日:2012-09-13

    Abstract: The present invention provides a method and apparatus for initiating a multiple input multiple output (MIMO) communication. The method and apparatus includes processing that begins by transmitting a frame formatted in accordance with a default MIMO active transmitter-receiver antenna configuration to a target receiver. The processing continues by receiving at least one response frame from the target receiver. The processing continues by determining a number of receiver antennas of the target receiver from the at least one response frame.

    Abstract translation: 本发明提供一种用于启动多输入多输出(MIMO)通信的方法和装置。 该方法和装置包括通过将根据默认的MIMO主动发射机 - 接收机天线配置格式化的帧发送到目标接收机而开始的处理。 通过从目标接收机接收至少一个响应帧来继续处理。 该处理继续通过从至少一个响应帧确定目标接收机的接收天线的数量。

    Un-tethered wireless audio system
    105.
    发明授权
    Un-tethered wireless audio system 有权
    无连接的无线音频系统

    公开(公告)号:US08768252B2

    公开(公告)日:2014-07-01

    申请号:US13220224

    申请日:2011-08-29

    Abstract: A wireless audio system configured to receive audio information wirelessly transmitted by an audio source including first and second wireless transceivers. The first wireless transceiver establishes a bidirectional secondary wireless link with the audio source for receiving and acknowledging receipt of the audio information. The first and second wireless transceivers communicate with each other via a primary wireless link. A wireless audio system including an audio source and first and second wireless transceivers. The first and second wireless transceivers communicate via a primary wireless link. The audio source communicates audio information to the first wireless transceiver via a secondary wireless link which is configured according to a standard wireless protocol. The first wireless transceiver is configured to acknowledge successful reception of audio information via the secondary wireless link.

    Abstract translation: 一种被配置为接收由包括第一和第二无线收发器的音频源无线发送的音频信息的无线音频系统。 第一无线收发器与音频源建立双向次级无线链路,用于接收和确认音频信息的接收。 第一和第二无线收发器经由主无线链路彼此通信。 一种包括音频源和第一和第二无线收发器的无线音频系统。 第一和第二无线收发器通过主无线链路进行通信。 音频源通过根据标准无线协议配置的辅助无线链路将音频信息传送到第一无线收发器。 第一无线收发器经配置以确认通过辅助无线链路成功接收音频信息。

    Dual mode operation in a wireless network
    106.
    发明授权
    Dual mode operation in a wireless network 有权
    无线网络中的双模式操作

    公开(公告)号:US08644284B2

    公开(公告)日:2014-02-04

    申请号:US13484623

    申请日:2012-05-31

    Abstract: Provided is dual mode operation by a communicating device in wireless network. The communicating device selects a radio frequency (RF) channel and a physical layer type. The communicating device processes signals received via the selected RF channel based on the selected physical layer type. The communicating device may determine whether a beacon frame has been detected base on the signals that were received via the selected RF channel and processed based on the selected physical layer type. When a frame is not detected, the communicating device may determine a signal energy level for the received signals. The communicating device may establish an association with an existing network based on detection of the beacon frame or the communicating device may transmit an originating beacon frame based on the determined signal energy level.

    Abstract translation: 提供无线网络中通信设备的双模操作。 通信设备选择射频(RF)信道和物理层类型。 通信设备基于所选择的物理层类型处理经由所选择的RF信道接收的信号。 通信设备可以基于经由所选择的RF信道接收到的信号来确定是否已经检测到信标帧,并且基于所选择的物理层类型进行处理。 当没有检测到帧时,通信设备可以确定接收信号的信号能级。 通信设备可以基于信标帧的检测来建立与现有网络的关联,或者通信设备可以基于确定的信号能级来发送始发信标帧。

    Transceiver with plural space hopping array antennas and methods for use therewith
    107.
    发明授权
    Transceiver with plural space hopping array antennas and methods for use therewith 有权
    具有多个跳跃阵列天线的收发器及其使用的方法

    公开(公告)号:US08577416B2

    公开(公告)日:2013-11-05

    申请号:US13750177

    申请日:2013-01-25

    CPC classification number: H04B1/44 H01Q3/30 H01Q21/28

    Abstract: A wireless transceiver includes an antenna array that transmits an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the antenna array is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the antenna array to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected one of the antennas in the array to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna in the array.

    Abstract translation: 无线收发器包括天线阵列,其将包含出站数据的出站RF信号发送到远程收发器,并且接收包含来自远程RF收发器的入站数据的入站RF信号,其中天线阵列可基于控制信号进行配置。 天线配置控制器基于跳频序列产生控制信号以配置天线阵列在多个辐射图案之间跳跃。 RF收发器部分基于出站数据生成出站RF信号,并且基于入站RF信号生成入站数据。 在一种配置中,切换部分基于控制信号选择性地将阵列中的所选择的一个天线耦合到RF收发器部分。 在另一种配置中,RF收发器部分包括用于阵列中的每个天线的RF部分。

    Header encoding/decoding
    109.
    发明授权
    Header encoding/decoding 有权
    标题编码/解码

    公开(公告)号:US08495448B2

    公开(公告)日:2013-07-23

    申请号:US13531655

    申请日:2012-06-25

    Abstract: In a communication device that is operative to perform decoding, a log-likelihood ratio (LLR) circuitry operates to calculate LLRs corresponding to every bit location within a received bit sequence. This received bit sequence may include a header and a data portion (both of which may be included within a frame that also includes a preamble). The header is composed of information bits, a duplicate of those information bits (such as may be generated in accordance with repetition encoding), and redundancy bits. The header includes information corresponding to frame or data including frame length, a code type by which the data are encoded, a code rate by which the data are encoded, and a modulation by which symbols of the data are modulated. Once the header has been decoded, then the data corresponding thereto is decoded by a block decoder circuitry to make estimates of that data.

    Abstract translation: 在可操作地执行解码的通信设备中,对数似然比(LLR)电路用于计算对应于接收的比特序列内的每个比特位置的LLR。 该接收的比特序列可以包括头部和数据部分(两者都可以包括在还包括前同步码的帧内)。 报头由信息位组成,这些信息位的副本(例如可以根据重复编码生成)和冗余位。 标题包括对应于帧或数据的信息,包括帧长度,数据被编码的代码类型,数据被编码的编码速率以及数据的符号被调制的调制。 一旦标题已被解码,则与其对应的数据由块解码器电路解码以对该数据进行估计。

    Header encoding for single carrier (SC) and/or orthogonal frequency division multiplexing (OFDM) using shortening, puncturing, and/or repetition
    110.
    发明授权
    Header encoding for single carrier (SC) and/or orthogonal frequency division multiplexing (OFDM) using shortening, puncturing, and/or repetition 有权
    使用缩短,穿孔和/或重复的单载波(SC)和/或正交频分复用(OFDM)的报头编码

    公开(公告)号:US08479076B2

    公开(公告)日:2013-07-02

    申请号:US13592238

    申请日:2012-08-22

    Abstract: Header encoding for SC and/or OFDM signaling using shortening, puncturing, and/or repetition in accordance with encoding header information within a frame to be transmitted via a communication channel employs different respective puncturing patterns as applied to different portions thereof. For example, a first puncturing pattern is applied to a first portion of the frame, and a second puncturing pattern is applied to a second portion of the frame (the second portion may be a repeated version of the first portion). Shortening (e.g., by padding 0-valued bits thereto) may be made to header information bits before they undergo encoding (e.g., in an LDPC encoder). One or both of the information bits and parity/redundancy bits output from the encoder undergo selective puncturing. Moreover, one or both of the information bits and parity/redundancy bits output from the encoder may be repeated/spread before undergoing selective puncturing to generate a header.

    Abstract translation: 根据要通过通信信道发送的帧内的编码头信息,使用缩短,删截和/或重复的SC和/或OFDM信令的报头编码,采用不同的相应的打孔图案,应用于其不同部分。 例如,将第一穿孔图案应用于框架的第一部分,并且将第二穿孔图案应用于框架的第二部分(第二部分可以是第一部分的重复版本)。 在进行编码之前(例如,在LDPC编码器中),可以缩短(例如,通过填充0值比特)到头信息比特。 从编码器输出的信息位和奇偶校验/冗余位中的一个或两个进行选择性穿孔。 此外,可以在进行选择性穿孔之前重复/扩展从编码器输出的信息比特和奇偶校验/冗余比特中的一个或两个以产生报头。

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