会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 16. 发明授权
    • Systems and methods for wireless communication in sub gigahertz bands
    • 用于无线通信的子系统和方法
    • US08625690B2
    • 2014-01-07
    • US13410633
    • 2012-03-02
    • Mohammad Hossein Taghavi NasrabadiSameer VermaniLin YangHemanth Sampath
    • Mohammad Hossein Taghavi NasrabadiSameer VermaniLin YangHemanth Sampath
    • H04K1/10
    • H04L27/2647H04L5/0023H04L5/0053H04L27/2613H04L27/2628
    • Systems, methods, and devices for wireless communication. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a wireless signal comprising a packet. At least a portion of the wireless signal is configured to be received over a bandwidth lower than or equal to 1.25 MHz. The packet is formed from at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising thirty-two tones. The thirty-two tones correspond to frequency subcarriers within the bandwidth. The thirty-two tones of the at least one OFDM symbol are allocated as: twenty-four data tones, two pilot tones, five guard tones, and one direct current (DC) tone. The apparatus includes a processor configured to evaluate the wireless signal. The processor includes a transform module configured to convert the at least one OFDM symbol into a frequency domain signal using a thirty-two point mode.
    • 用于无线通信的系统,方法和设备。 一方面,提供一种无线通信装置。 该装置包括被配置为接收包括分组的无线信号的接收机。 无线信号的至少一部分被配置为在低于或等于1.25MHz的带宽上接收。 分组由包括三十二个音调的至少一个正交频分复用(OFDM)符号形成。 32个音调对应于带宽内的频率子载波。 至少一个OFDM符号的三十二个音调被分配为:二十四个数据音调,两个导频音调,五个保护音调和一个直流(DC)音调。 该装置包括被配置为评估无线信号的处理器。 处理器包括变换模块,其被配置为使用三十二点模式将至少一个OFDM符号转换成频域信号。
    • 17. 发明申请
    • SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION IN SUB GIGAHERTZ BANDS
    • 用于无线通信的系统和方法在GIGAHERTZ BANDS
    • US20120236971A1
    • 2012-09-20
    • US13410633
    • 2012-03-02
    • Mohammad Hossein Taghavi NasrabadiSameer VermaniLin YangHemanth Sampath
    • Mohammad Hossein Taghavi NasrabadiSameer VermaniLin YangHemanth Sampath
    • H04L27/28H04B7/00
    • H04L27/2647H04L5/0023H04L5/0053H04L27/2613H04L27/2628
    • Systems, methods, and devices for wireless communication. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a wireless signal comprising a packet. At least a portion of the wireless signal is configured to be received over a bandwidth lower than or equal to 1.25 MHz. The packet is formed from at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising thirty-two tones. The thirty-two tones correspond to frequency subcarriers within the bandwidth. The thirty-two tones of the at least one OFDM symbol are allocated as: twenty-four data tones, two pilot tones, five guard tones, and one direct current (DC) tone. The apparatus includes a processor configured to evaluate the wireless signal. The processor includes a transform module configured to convert the at least one OFDM symbol into a frequency domain signal using a thirty-two point mode.
    • 用于无线通信的系统,方法和设备。 一方面,提供一种无线通信装置。 该装置包括被配置为接收包括分组的无线信号的接收机。 无线信号的至少一部分被配置为在低于或等于1.25MHz的带宽上接收。 分组由包括三十二个音调的至少一个正交频分复用(OFDM)符号形成。 32个音调对应于带宽内的频率子载波。 至少一个OFDM符号的三十二个音调被分配为:二十四个数据音调,两个导频音调,五个保护音调和一个直流(DC)音调。 该装置包括被配置为评估无线信号的处理器。 处理器包括变换模块,其被配置为使用三十二点模式将至少一个OFDM符号转换成频域信号。
    • 18. 发明申请
    • SYSTEMS AND METHODS FOR ADDRESSING DOPPLER EFFECT IN WIRELESS COMMUNICATIONS SYSTEMS
    • 在无线通信系统中解决多普勒效应的系统和方法
    • US20130177115A1
    • 2013-07-11
    • US13541132
    • 2012-07-03
    • Lin YangMohammad Hossein Taghavi NasrabadiAlbert van ZelstHemanth SampathRenqiu Wang
    • Lin YangMohammad Hossein Taghavi NasrabadiAlbert van ZelstHemanth SampathRenqiu Wang
    • H04L25/02
    • H04L25/0202H04B7/01
    • Systems, methods, and devices for performing channel estimates to address the Doppler Effect in wireless communications are described herein. One aspect of the disclosure provides an apparatus for wireless communication. The apparatus comprises a receiver configured to receive coded data tones during a first symbol over a communication channel. The apparatus further comprises a processor. The processor is configured to estimate a common phase offset and amplitude of the communication channel based on pilot tones received over the communication channel. The processor is configured to determine, prior to decoding, a residual phase offset per data tone based on a phase difference between an estimate of the coded data tones and a reference symbol. The processor is configured to estimate update channel state information of the communication channel based on the determined estimated common phase offset, amplitude, and the determined residual phase offset per data tone.
    • 这里描述了用于执行信道估计以解决无线通信中的多普勒效应的系统,方法和设备。 本公开的一个方面提供了一种用于无线通信的装置。 该装置包括被配置为通过通信信道在第一符号期间接收编码数据音调的接收机。 该装置还包括处理器。 处理器被配置为基于通过通信信道接收的导频音来估计通信信道的公共相位偏移和幅度。 处理器被配置为在解码之前基于编码数据音调的估计和参考符号之间的相位差来确定每个数据音调的残余相位偏移。 处理器被配置为基于所确定的估计的公共相位偏移,幅度和所确定的每个数据音调的剩余相位偏移来估计通信信道的更新信道状态信息。