Preamble formats supporting high-throughput MIMO WLAN and auto-detection
    102.
    发明授权
    Preamble formats supporting high-throughput MIMO WLAN and auto-detection 有权
    支持高吞吐量MIMO WLAN和自动检测的前导格式

    公开(公告)号:US08532213B2

    公开(公告)日:2013-09-10

    申请号:US12762707

    申请日:2010-04-19

    IPC分类号: H04L1/02

    摘要: A method for generating a preamble of an Orthogonal Frequency Division Multiplexed (OFDM) data frame for a multiple input multiple output (MIMO) wireless communication includes determining at least one system condition preamble format parameter. When the system condition preamble format parameter satisfies a first preamble format parameter a preamble having a first preamble format is formed. When the system condition preamble format parameter satisfies a second preamble format parameter, a preamble having a second preamble format is formed. Further, when the system condition preamble format parameter satisfies a third preamble format parameter, a preamble having a third preamble format is formed. The first, second, and third preamble formats differ based upon their lengths, fields, and modulation formats of a high throughput signal field.

    摘要翻译: 一种用于产生用于多输入多输出(MIMO)无线通信的正交频分复用(OFDM)数据帧的前导码的方法,包括确定至少一个系统状态前导格式参数。 当系统条件前置码格式参数满足第一前同步码格式参数时,形成具有第一前同步码格式的前同步码。 当系统条件前置码格式参数满足第二前同步码格式参数时,形成具有第二前同步码格式的前同步码。 此外,当系统条件前置码格式参数满足第三前同步码格式参数时,形成具有第三前同步码格式的前同步码。 第一,第二和第三前同步码格式根据其高吞吐量信号场的长度,场和调制格式而不同。

    Communication device architecture for in-place constructed LDPC (low density parity check) code
    103.
    发明授权
    Communication device architecture for in-place constructed LDPC (low density parity check) code 有权
    用于就地构造的LDPC(低密度奇偶校验)码的通信设备架构

    公开(公告)号:US08433971B2

    公开(公告)日:2013-04-30

    申请号:US12770068

    申请日:2010-04-29

    IPC分类号: H03M13/00

    摘要: Communication device architecture for in-place constructed LDPC (Low Density Parity Check) code. Intelligent design of LDPC codes having similar characteristics there between allows for a very efficient hardware implementation of a communication device that is operative to perform encoding of respective information bit groups using more than one type of LDPC codes. A switching module can select any one of the LDPC codes within an in-place LDPC code for use by an LDPC encoder circuitry to generate an LDPC coded signal. Depending on which sub-matrices of a superimposed LDPC matrix are enabled or disabled, one of the LDPC matrices from within an in-place LDPC code matrix set may be selected. A corresponding, respective generator matrix may be generated from each respective LDPC matrix. Selection among the various LDPC codes may be in accordance with a predetermined sequence, of based operating conditions of the communication device or communication system.

    摘要翻译: 用于就地构造的LDPC(低密度奇偶校验)码的通信设备架构。 具有相似特性的LDPC码的智能设计允许通信设备的非常有效的硬件实现,该通信设备可操作以使用多于一种类型的LDPC码执行各个信息位组的编码。 交换模块可以在就地LDPC码内选择任何一个LDPC码,供LDPC编码器电路使用以产生LDPC编码信号。 根据叠加的LDPC矩阵的哪些子矩阵被使能或禁用,可以选择来自就地内LDPC码矩阵集合的LDPC矩阵之一。 可以从每个相应的LDPC矩阵生成相应的相应的生成器矩阵。 各种LDPC码之间的选择可以与通信设备或通信系统的基于操作条件的预定顺序相一致。

    LOW POWER PROTOCOL FOR WIRELESS TERMINAL PEER-TO-PEER COMMUNICATIONS
    105.
    发明申请
    LOW POWER PROTOCOL FOR WIRELESS TERMINAL PEER-TO-PEER COMMUNICATIONS 有权
    无线终端对等通信的低功耗协议

    公开(公告)号:US20120269107A1

    公开(公告)日:2012-10-25

    申请号:US13534538

    申请日:2012-06-27

    IPC分类号: H04W52/02

    摘要: A Wireless Local Area Network (WLAN) system based upon peer-to-peer communications. A wireless terminal for peer-to-peer communications acts either as a WLAN master or as a WLAN slave. When the wireless terminal acts a master, the wireless terminal undertakes mastering duties that include transmitting a beacon interval in the frame cycle. When the wireless terminal is not tethered to a power source, mastering duties alternate according to a round-robin WLAN mastering cycle, wherein the wireless terminal acts the WLAN master during at least one frame cycle and acts the WLAN slave during other frame cycles to conserve an untethered power source of the wireless terminal.

    摘要翻译: 基于点对点通信的无线局域网(WLAN)系统。 用于对等通信的无线终端作为WLAN主机或WLAN从设备。 当无线终端作为主机时,无线终端承担包括在帧周期中发送信标间隔的控制任务。 当无线终端不被连接到电源时,根据循环WLAN主控周期交替备用工作,其中无线终端在至少一个帧周期内对WLAN主机起作用,并且在其他帧周期期间对WLAN从属设备进行动作以节省 无线终端的无电源电源。

    RECEIVER WITH HYBRID RECEPTION ESTIMATION AND METHODS FOR USE THEREWITH
    106.
    发明申请
    RECEIVER WITH HYBRID RECEPTION ESTIMATION AND METHODS FOR USE THEREWITH 失效
    接收混合接收估计及其使用方法

    公开(公告)号:US20120252511A1

    公开(公告)日:2012-10-04

    申请号:US13492488

    申请日:2012-06-08

    IPC分类号: H04B7/02 H04B1/38 H04B1/10

    CPC分类号: H04B7/0413 H04B7/0851

    摘要: A receiver includes an antenna array that generates received signals from a first remote transmitter and a second remote transmitter, the antenna array having a beam pattern that is controllable based a control signal. A plurality of receiver sections process the received signals to generate down-converted signals. A receiver processing module, generates the control signal to control the beam pattern to a first pattern during a first time period for reception from the first remote transmitter, generates a first reception estimate based on the down-converted signals during the first time period, generates the control signal to control the beam pattern to a second pattern during a second time period for reception from the second remote transmitter, generates a second reception estimate based on the down-converted signals during the second time period, and generates inbound data based on the first reception estimate and the second reception estimate.

    摘要翻译: 接收器包括从第一远程发射器和第二远程发射器产生接收信号的天线阵列,所述天线阵列具有基于控制信号可控的波束图案。 多个接收器部分处理所接收的信号以产生下变频信号。 一种接收机处理模块,在第一时间段期间产生控制信号以控制第一模式,以便从第一远程发射机进行接收,基于第一时间段内的下变频信号产生第一接收估计,产生 用于在第二时间段期间将波束图案控制为第二图案的控制信号用于从第二遥控发射机接收,基于在第二时间段期间的下变频信号产生第二接收估计,并且基于 第一接收估计和第二接收估计。

    RF transmitter having multiple constant transmit power levels
    107.
    发明授权
    RF transmitter having multiple constant transmit power levels 失效
    RF发射机具有多个恒定的发射功率电平

    公开(公告)号:US08233849B2

    公开(公告)日:2012-07-31

    申请号:US12392773

    申请日:2009-02-25

    IPC分类号: H04B1/66 H04B17/00

    CPC分类号: H03G3/3047

    摘要: A radio frequency transmitter includes a baseband transmit processing module, a mixing module, a power amplifier, a transmit power sense module, and a transmit power control module. The baseband transmit processing module is operably coupled to encode outbound data into outbound baseband signals in accordance with one of a plurality of encoding protocols. The mixing module is operably coupled to convert the outbound baseband signals into outbound radio frequency signals. The power amplifier is operably coupled to amplify the outbound RF signals prior to transmission to produce amplified outbound RF signals. The transmit power sense module is operably coupled to sense the amplified outbound RF signals to provide a transmit signal strength indication (TSSI). The transmit power control module is operably coupled to adjust gain of the baseband transmit processing module, the mixing module, and/or the power amplifier based on the TSSI and the particular encoding protocol used to produce the baseband signals.

    摘要翻译: 射频发射机包括基带发射处理模块,混频模块,功率放大器,发射功率感测模块和发射功率控制模块。 基带发射处理模块可操作地耦合以根据多个编码协议之一将出站数据编码到出站基带信号中。 混合模块可操作地耦合以将出站基带信号转换成出站射频信号。 功率放大器可操作地耦合以在传输之前放大出站RF信号,以产生放大的出站RF信号。 发射功率感测模块可操作地耦合以感测放大的出站RF信号以提供发射信号强度指示(TSSI)。 发射功率控制模块可操作地耦合以基于用于产生基带信号的TSSI和特定编码协议来调节基带发射处理模块,混频模块和/或功率放大器的增益。

    Multimode wireless communication device
    108.
    发明授权
    Multimode wireless communication device 有权
    多模无线通信设备

    公开(公告)号:US07856245B2

    公开(公告)日:2010-12-21

    申请号:US11643170

    申请日:2006-12-20

    IPC分类号: H04M1/00

    CPC分类号: H04B1/406

    摘要: A multimode wireless communication device includes a first circuit having a digital baseband processing module to convert outbound data into outbound digital baseband signals and to convert inbound digital baseband signals into inbound data, an analog to digital converter module to convert inbound analog baseband signals into the inbound digital baseband signals, and a digital to analog converter module to convert the outbound digital baseband signals into outbound analog baseband signals. A second circuit includes a first radio section and a third circuit includes a second radio section. A diversity antenna arrangement includes a first antenna, a second antenna, a first diplexer coupled to the first antenna, and a second diplexer coupled to the second antenna, that selectively couples the first radio section to one of the first antenna and the second antenna, and that selectively couples the second radio section to one of the first antenna and the second antenna.

    摘要翻译: 多模无线通信设备包括具有数字基带处理模块的第一电路,用于将出站数据转换为出站数字基带信号并将入站数字基带信号转换为入站数据;模数转换器模块,用于将入站模拟基带信号转换成入站 数字基带信号和数模转换器模块,将出站数字基带信号转换为出站模拟基带信号。 第二电路包括第一无线电部分,第三电路包括第二无线电部分。 分集天线装置包括第一天线,第二天线,耦合到第一天线的第一双工器和耦合到第二天线的第二双工器,其将第一无线电部分选择性地耦合到第一天线和第二天线之一, 并且将第二无线电部分选择性地耦合到第一天线和第二天线之一。

    Robust high-throughput frame for low-quality wireless channel conditions
    109.
    发明授权
    Robust high-throughput frame for low-quality wireless channel conditions 失效
    坚固的高吞吐量帧,用于低质量无线信道条件

    公开(公告)号:US07729378B2

    公开(公告)日:2010-06-01

    申请号:US11504905

    申请日:2006-08-16

    IPC分类号: H04J3/16

    摘要: A transceiver device for processing a frame in a wireless local area network, where the frame is one of several frame formats, which include a high throughput frame format. The transceiver device receives a frame having a training sequence, a signal field and a data payload, and processes the training sequence to detect which signal field length of a plurality of signal field lengths was used in the received frame. With the signal field length, the device processes the signal field based upon the detected signal field length to retrieve the data payload processing information.

    摘要翻译: 一种用于处理无线局域网中的帧的收发器设备,其中帧是包括高吞吐量帧格式的几种帧格式之一。 收发器装置接收具有训练序列,信号字段和数据有效载荷的帧,并且处理训练序列以检测在接收帧中使用多个信号字段长度的信号字段长度。 利用信号字段长度,设备基于检测到的信号字段长度处理信号字段以检索数据有效载荷处理信息。

    Header encoding for single carrier (SC) and/or orthogonal frequency division multiplexing (OFDM) using shortening, puncturing, and/or repetition
    110.
    发明申请
    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:US20100115372A1

    公开(公告)日:2010-05-06

    申请号:US12612648

    申请日:2009-11-04

    IPC分类号: H03M13/05 G06F11/10

    摘要: 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.

    摘要翻译: 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。