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    • 4. 发明授权
    • Rate control device and method for CDMA communication system
    • CDMA通信系统的速率控制装置及方法
    • US07227836B2
    • 2007-06-05
    • US10272143
    • 2002-10-16
    • Seung-Hyun KongYoung-Ky KimJae-Min AhnSoon-Young Yoon
    • Seung-Hyun KongYoung-Ky KimJae-Min AhnSoon-Young Yoon
    • H04J11/00H04B7/216
    • H04B7/264H04B7/2646H04L1/0009H04L1/0025H04L1/0068H04L1/0071H04L1/08
    • A traffic channel transmission device for a CDMA communication system using a plurality of coding rates and orthogonal codes, determines a present channel condition and adaptively selects a coding rate and an orthogonal code according to the determination. In the device, a channel receiver receives a channel signal and a controller analyzes the received signal to decide an environment of a channel in service and generates a coding rate select signal and orthogonal code information according to the decision result. A channel transmitter includes a channel encoder for encoding transmission data at a coding rate selected according to the coding rate select signal and an orthogonal modulator for generating an orthogonal code according to the orthogonal code information to spread the encoded data with the generated orthogonal code, whereby the channel transmitter adaptively encodes and spreads the transmission data according to the channel environment. The orthogonal code information includes a number and a length of the orthogonal code.
    • 用于使用多个编码率和正交码的CDMA通信系统的业务信道传输设备,确定当前信道条件,并根据该确定自适应地选择编码率和正交码。 在该装置中,信道接收机接收信道信号,控制器分析接收到的信号,决定业务中的信道的环境,并根据判定结果生成编码率选择信号和正交码信息。 信道发射机包括用于按照编码速率选择信号选择的编码速率对传输数据进行编码的信道编码器和用于根据正交码信息产生正交码的正交调制器,以便利用所产生的正交码扩展编码数据,由此 信道发射机根据信道环境自适应地编码和扩展传输数据。 正交码信息包括正交码的数量和长度。
    • 5. 发明授权
    • Rate control device and method for CDMA communication system
    • CDMA通信系统的速率控制装置及方法
    • US06700881B1
    • 2004-03-02
    • US09260213
    • 1999-03-01
    • Seung-Hyun KongYoung-Ky KimJae-Min AhnSoon-Young Yoon
    • Seung-Hyun KongYoung-Ky KimJae-Min AhnSoon-Young Yoon
    • H04B7216
    • H04B7/264H04B7/2646H04L1/0009H04L1/0025H04L1/0068H04L1/0071H04L1/08
    • A traffic channel transmission device for a CDMA communication system using a plurality of coding rates and orthogonal codes, determines a present channel condition and adaptively selects a coding rate and an orthogonal code according to the determination. In the device, a channel receiver receives a channel signal and a controller analyzes the received signal to decide an environment of a channel in service and generates a coding rate select signal and orthogonal code information according to the decision result. A channel transmitter includes a channel encoder for encoding transmission data at a coding rate selected according to the coding rate select signal and an orthogonal modulator for generating an orthogonal code according to the orthogonal code information to spread the encoded data with the generated orthogonal code, whereby the channel transmitter adaptively encodes and spreads the transmission data according to the channel environment. The orthogonal code information includes a number and a length of the orthogonal code.
    • 用于使用多个编码率和正交码的CDMA通信系统的业务信道传输设备,确定当前信道条件,并根据该确定自适应地选择编码率和正交码。 在该装置中,信道接收机接收信道信号,控制器分析接收到的信号,决定业务中的信道的环境,并根据判定结果生成编码率选择信号和正交码信息。 信道发射机包括用于按照编码速率选择信号选择的编码速率对传输数据进行编码的信道编码器和用于根据正交码信息产生正交码的正交调制器,以便利用所产生的正交码扩展编码数据,由此 信道发射机根据信道环境自适应地编码和扩展传输数据。 正交码信息包括正交码的数量和长度。
    • 8. 发明申请
    • APPARATUS AND METHOD FOR ULTRA-FAST GNSS INITIAL POSITIONING SCHEME WITH PEER ASSISTANCE, AND RECORDING MEDIUM THEREOF
    • 具有同步辅助的超快GNSS导航定位方案的装置和方法及其记录介质
    • US20120056781A1
    • 2012-03-08
    • US13024807
    • 2011-02-10
    • Seung-Hyun KongWooseok Nam
    • Seung-Hyun KongWooseok Nam
    • G01S19/05
    • G01S19/254G01S19/252G01S19/256
    • A method and an apparatus for acquiring an ultra-fast global navigation satellite systems (GNSS) initial position with peer assistance are disclosed. The apparatus includes a communication unit configured to receive assistance generated using a distance from a master terminal to a slave terminal and frequency error of a counterpart's terminal, a communication signal system configured to immediately receive immediately necessary information of the assistance, a Global Positioning System (GPS) receiver configured to rapidly search for a GPS satellite signal using the assistance and continuously track the GPS satellite signal so as to extract a pseudorange, and a computation processor configured to compute the position of the slave terminal using the assistance and the pseudorange. By this configuration, it is possible to perform fast initial position measurement as compared to the existing A-GPS technique, achieve direct communication between two GPS receivers regardless of presence/absence of a mobile communication network, and solve various limitations of the A-GPS technique.
    • 公开了一种用于获得具有同伴协助的超快全球导航卫星系统(GNSS)初始位置的方法和装置。 该装置包括:通信单元,被配置为接收使用从主终端到从终端的距离产生的协助;对方终端的频率误差;被配置为立即立即接收到所需辅助信息的通信信号系统;全球定位系统 GPS)接收器,其被配置为使用所述辅助来快速搜索GPS卫星信号,并且连续地跟踪所述GPS卫星信号以提取伪距;以及计算处理器,被配置为使用所述辅助和所述伪距来计算所述从属终端的位置。 通过这种配置,与现有的A-GPS技术相比,可以执行快速的初始位置测量,实现两个GPS接收机之间的直接通信,而不管移动通信网络是否存在,并且解决了A-GPS的各种限制 技术。
    • 9. 发明授权
    • Device and method for locating a mobile station in a mobile communication system
    • 用于在移动通信系统中定位移动站的设备和方法
    • US06275186B1
    • 2001-08-14
    • US09459052
    • 1999-12-10
    • Seung-Hyun Kong
    • Seung-Hyun Kong
    • G01S302
    • H04W64/00G01S5/10G01S5/12
    • A device and method for locating a mobile station (MS) in a mobile communication system. In the MS locating device for an MS which receives signals synchronized to a predetermined time from at least one adjacent base station (BS) and is located within a serving BS of the at least one BS, an analog to digital converter (ADC) converts the received BS signals to digital chip sample data, a memory stores the chip sample data, a dedicated searcher detects at least two signals by correlating the chip sample data received from the memory by off-line processing and calculates the signal-to-interference ratios (SIRs) and time difference of arrival (TDOA) of the two signals, and a controller estimates the MS location based on the SIRs and TDOA received from the dedicated searcher.
    • 一种用于在移动通信系统中定位移动站(MS)的设备和方法。 在用于MS的MS定位设备中,模拟数字转换器(ADC)接收从至少一个相邻基站(BS)同步到预定时间并位于至少一个BS的服务BS内的信号,ADC 接收BS信号到数字芯片样本数据,存储器存储芯片样本数据,专用搜索器通过离线处理从存储器接收的芯片样本数据相关来检测至少两个信号,并计算信号干扰比( SIR)和两个信号的到达时间差(TDOA),并且控制器基于从专用搜索器接收的SIR和TDOA来估计MS位置。
    • 10. 发明授权
    • Device and method for locating a mobile station in a mobile communication system
    • 用于在移动通信系统中定位移动站的设备和方法
    • US06229844B1
    • 2001-05-08
    • US09466280
    • 1999-12-17
    • Seung-Hyun Kong
    • Seung-Hyun Kong
    • H04B1500
    • G01S5/12G01S3/48H04B1/707
    • A device and method for locating a mobile station (MS) in a mobile communication system. In the MS locating device, a first antenna and a second antenna of a base station (BS) are spaced from each other by a distance equivalent to a wavelength of an MS transmission channel multiplied by a predetermined coefficient, such as one half. A first frequency downconverter and a second frequency downconverter convert signals received from the first and second antennas to baseband signals and digitize the baseband signals to chip sample data. A first channel demodulator and a second channel demodulator recover the chip sample data received from the first and second frequency downconverters and output information about the symbol start and PN code of a specific MS signal. A controller outputs a PN code for identifying the specific MS and finger position information based on the symbol start and PN code information received from the first and second demodulators. In addition, the controller may be supplied with orthogonal code information from the demodulator; in this case, the controller will output information concerning the specific Walsh code. A symbol data extractor extracts two symbols of the specific MS from the chip sample data received from the first and second frequency downconverters based on the PN code and finger position information. An incident angle estimator estimates the incident angle of the received signal from the phase difference between the extracted two symbols. A location estimator estimates the location of the specific MS based on the estimated incident angle and the round trip delay (RTD) measured for the MS.
    • 一种用于在移动通信系统中定位移动站(MS)的设备和方法。 在MS定位设备中,基站(BS)的第一天线和第二天线彼此间隔相当于MS传输信道的波长乘以预定系数(例如一半)的距离。 第一频率下变频器和第二频率下变频器将从第一和第二天线接收的信号转换为基带信号,并将基带信号数字化为芯片采样数据。 第一信道解调器和第二信道解调器恢复从第一和第二频率下变频器接收的芯片采样数据,并输出关于特定MS信号的符号起始和PN码的信息。 控制器基于从第一和第二解调器接收的符号开始和PN码信息输出用于识别特定MS和手指位置信息的PN码。 另外,控制器可以从解调器提供正交码信息; 在这种情况下,控制器将输出有关特定沃尔什码的信息。 符号数据提取器基于PN码和手指位置信息从从第一和第二频率下变频器接收的芯片样本数据中提取特定MS的两个符号。 入射角估计器根据所提取的两个符号之间的相位差估计接收信号的入射角。 位置估计器基于针对MS测量的估计入射角和往返延迟(RTD)来估计特定MS的位置。