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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。
    • 7. 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。
    • 10. 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。