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
    • 3. 发明授权
    • Data communication device and method for mobile communication system with dedicated control channel
    • 具有专用控制信道的移动通信系统数据通信装置及方法
    • US06438119B1
    • 2002-08-20
    • US09250662
    • 1999-02-16
    • Young-Ky KimJae-Min AhnSoon-Young YoonHee-Won KangHyun-Suk LeeJin-Soo ParkMin-Sou Lee
    • Young-Ky KimJae-Min AhnSoon-Young YoonHee-Won KangHyun-Suk LeeJin-Soo ParkMin-Sou Lee
    • H04B726
    • H04B7/2628
    • A CDMA communication system provides a dedicated control channel capable of efficiently communicating control messages between a base station and a mobile station. In a dedicated control channel transmission device, a controller determines a frame length of a message to be transmitted and outputs a frame select signal corresponding to the determined frame length. A message generator generates frame data of the message to be transmitted according to the frame select signal. A transmitter spreads the frame data and transmitting the spread frame data through a dedicated control channel. In a dedicated control channel reception device, a despreader despreads a received signal. A first message receiver deinterleaves and decodes the despread signal in a first frame length to output a first message, and detects a first CRC corresponding to the decoded signal. A second message receiver deinterleaves and decodes the despread signal in a second frame length to output a second message, and detects a second CRC corresponding to the decoded signal. A controller selects one of the first and second messages according to first and second CRC detection results.
    • CDMA通信系统提供能够在基站和移动台之间有效地传送控制消息的专用控制信道。 在专用控制信道传输装置中,控制器确定要发送的消息的帧长度,并输出与所确定的帧长度对应的帧选择信号。 消息发生器根据帧选择信号产生要发送的消息的帧数据。 发射机扩展帧数据并通过专用控制信道发送扩展帧数据。 在专用控制信道接收装置中,去扩频器对接收到的信号进行解扩。 第一消息接收机以第一帧长度对解扩信号进行解交织和解码,以输出第一消息,并检测与解码信号相对应的第一CRC。 第二消息接收机以第二帧长度对解扩信号进行解交织和解码,以输出第二消息,并且检测对应于解码信号的第二CRC。 控制器根据第一和第二CRC检测结果选择第一和第二消息中的一个。
    • 6. 发明授权
    • Spread spectrum signal generating device and method in transmitter of mobile communications system
    • 移动通信系统发射机中的扩频信号发生装置及方法
    • US06396868B1
    • 2002-05-28
    • US09135990
    • 1998-08-18
    • Soon-Young YoonJae-Min AhnHee-Won KangYoung-Ky KimJong-Seon NoHong-Yeop SongHa-Bong ChungJe-Woo Kim
    • Soon-Young YoonJae-Min AhnHee-Won KangYoung-Ky KimJong-Seon NoHong-Yeop SongHa-Bong ChungJe-Woo Kim
    • H04B1707
    • H04B1/707H04B2201/70706H04J13/004
    • There are provided spread spectrum signal generating devices and methods in a transmitter of a mobile communications system using a plurality of logical channels. In the spread spectrum signal generating devices, a multiplexer time multiplexes a pilot channel signal and a control channel signal which are output at substantially constant power levels. A first orthogonal encoder orthogonally spreads the output of the multiplexer with an orthogonal code. A second orthogonal encoder orthogonally spreads voice channel data of a variable bit rate with an orthogonal code. A third orthogonal encoder orthogonally spreads packet channel data of a variable bit rate with an orthogonal code. An IQ signal mapper adds the outputs of the first and third orthogonal encoders, outputs the added signal as a first channel signal, and outputs the output of the second orthogonal encoder as a second channel signal. A PN spreader spreads the first and second channel signals with PN codes and outputs a final spectrum spread signal, which exhibits a substantially minimized peak-to-average power ratio.
    • 在使用多个逻辑信道的移动通信系统的发射机中提供扩频信号产生装置和方法。 在扩展频谱信号发生装置中,多路复用器以基本上恒定的功率电平输出导频信道信号和控制信道信号。 第一正交编码器使用正交码对多路复用器的输出进行正交扩展。 第二正交编码器用正交码对可变比特率的语音信道数据进行正交扩频。 第三正交编码器使用正交码对可变比特率的分组信道数据进行正交扩展。 IQ信号映射器将第一和第三正交编码器的输出相加,输出相加的信号作为第一信道信号,并将第二正交编码器的输出作为第二信道信号输出。 PN扩展器用PN码扩展第一和第二信道信号,并输出最终的频谱扩展信号,其表现出基本上最小化的峰均功率比。