公开(公告)号：US07298773B2

公开(公告)日：2007-11-20

申请号：US11030941

申请日：2005-01-07

申请人： Yu-Suk Yun ,  Soon-Young Yoon ,  Hee-Won Kang ,  Jae-Heung Yeom ,  Sang-Hyun Yang ,  Hoon Huh

发明人： Yu-Suk Yun ,  Soon-Young Yoon ,  Hee-Won Kang ,  Jae-Heung Yeom ,  Sang-Hyun Yang ,  Hoon Huh

IPC分类号： H04L27/30

CPC分类号： H04W36/0055 ,  H04B1/707 ,  H04B7/264 ,  H04B2201/70701 ,  H04J13/004 ,  H04W48/08 ,  H04W48/12 ,  H04W52/322 ,  H04W52/325 ,  H04W88/08

摘要： There is provided a method and apparatus for selecting an appropriate base station and an optimal data rate to provide a voice service and a data service based on a voice service load in a CDMA system. A base station transmits two pilot signals orthogonally spread with different orthogonal codes in association with its voice service load, and a mobile station estimates the voice service load based on a pilot power ratio.

摘要翻译： 提供了一种用于选择合适的基站和最佳数据速率以在CDMA系统中基于语音服务负载提供语音服务和数据服务的方法和装置。 基站与其语音业务负载相关联地发送与不同正交码正交扩展的两个导频信号，移动台基于导频功率比来估计语音业务负载。

公开(公告)号：US07002901B2

公开(公告)日：2006-02-21

申请号：US09729495

申请日：2000-12-04

申请人： Yu-Suk Yun ,  Seung-Joo Maeng ,  Hee-Won Kang ,  Soon-Young Yoon ,  Young-Ky Kim

发明人： Yu-Suk Yun ,  Seung-Joo Maeng ,  Hee-Won Kang ,  Soon-Young Yoon ,  Young-Ky Kim

IPC分类号： H04J11/00

CPC分类号： H04J13/0048 ,  H04B1/707 ,  H04J13/0044 ,  H04J13/18 ,  H04J13/20

摘要： A method for assigning orthogonal codes used for a first system and a second system in a CDMA system including channels of the first system for spreading a pilot signal, a sync signal, a paging signal and a traffic signal with a first set of orthogonal codes corresponding to orthogonal code numbers in different rows from a set of orthogonal codes arranged in a matrix of m rows and m columns, and channels of the second system for spreading a second set of orthogonal codes corresponding to orthogonal code numbers different from said orthogonal code numbers for the first set of orthogonal codes. The orthogonal codes for the second system are transmitted at a data rate higher than a data rate of the first system. The method comprises the steps of: assigning orthogonal codes corresponding to the orthogonal code numbers of the orthogonal code set associated with at least one of 2n rows to the channels of the first system, wherein a set of the orthogonal codes are arranged in a matrix of subsets of orthogonal codes and inversed orthogonal codes, each subset including 2n rows and 2n columns; and assigning orthogonal codes corresponding to the orthogonal code numbers of the orthogonal code set associated with at least one of the remaining rows to the second system.

公开(公告)号：US06956948B1

公开(公告)日：2005-10-18

申请号：US09667350

申请日：2000-09-22

申请人： Sung-Oh Hwang ,  Hee-Won Kang ,  Hyun-Woo Lee

发明人： Sung-Oh Hwang ,  Hee-Won Kang ,  Hyun-Woo Lee

IPC分类号： H03K3/84 ,  H04B1/707 ,  H04B7/26 ,  H04J11/00 ,  H04J13/10 ,  H04L7/00 ,  H04W4/00 ,  H04W16/14 ,  G06F17/00

CPC分类号： H04J13/12 ,  H04B1/707 ,  H04B2201/70703 ,  H04J13/0044 ,  H04J2013/0037

摘要： An apparatus and method for generating multiple scrambling codes in an asynchronous mobile communication system. In a scrambling code generating apparatus for generating a current scrambling code and a compressed mode scrambling code for compressed mode transmission in a base station device having a spreader for spreading an input data sequence with one of a plurality of OVSF codes and a scrambler for scrambling the spread data sequence with a primary scrambling code used as a default or one of a plurality of secondary scrambling codes according to the number of mobile stations in communication, a first feedback linear shift register generates an m-sequence from first predetermined initial bits, a second feedback linear shift register generates another m-sequence from second predetermined initial bits, a first adder generates the current scrambling code by adding the outputs of the first and second linear feedback shift registers, a second adder adds the output of the second linear feedback register and an m-sequence one bit delayed from the output of the first linear feedback register, and a third adder adds the output of the second linear feedback register and an m-sequence two bits delayed from the output of the first linear feedback register. Here, the compressed mode scrambling code is one of the outputs of the second and third adders and provided to the scrambler to scramble the spread data sequence.

摘要翻译： 一种用于在异步移动通信系统中产生多个扰码的装置和方法。 在用于产生用于压缩模式传输的当前扰码的扰码产生装置和具有用于使用多个OVSF码中的一个扩展输入数据序列的扩展器的基站装置和用于扰频所述加扰器的加扰器的压缩模式扰码 第一反馈线性移位寄存器根据第一预定初始位产生m序列，第二预定初始位产生m序列，第二反向线性移位寄存器根据在通信中的移动站的数量， 反馈线性移位寄存器从第二预定初始位产生另一个m序列，第一加法器通过将第一和第二线性反馈移位寄存器的输出相加来产生当前扰码，第二加法器将第二线性反馈寄存器的输出和 从第一线性反馈寄存器的输出延迟一位的m序列，以及thi 第r个加法器将第二个线性反馈寄存器的输出和从第一个线性反馈寄存器的输出延迟的m序列两位相加。 这里，压缩模式扰频码是第二和第三加法器的输出之一，并且提供给加扰器以加扰扩展数据序列。

公开(公告)号：US06674712B1

公开(公告)日：2004-01-06

申请号：US09391731

申请日：1999-09-08

申请人： Kyeong-Cheol Yang ,  Jae-Yoel Kim ,  Hee-Won Kang ,  Young-Ky Kim

发明人： Kyeong-Cheol Yang ,  Jae-Yoel Kim ,  Hee-Won Kang ,  Young-Ky Kim

IPC分类号： H04J1100

CPC分类号： H04J13/004 ,  H04J13/0025 ,  H04J13/12 ,  H04M3/00

摘要： A method for generating a quaternary complex quasi-orthogonal code in a CDMA communication system is disclosed. The method comprises generating an M-sequence and then generating specific sequences having a good full correlation property with the M-sequence; generating a column permutation function for converting the M-sequence to a Walsh code; generating candidate masks by column shifting the specific sequences with the column permutation function; generating quasi-orthogonal code representatives by operating the candidate masks and the Walsh codes having the same length as that of the candidate masks; and selecting a quasi-orthogonal code satisfying a partial correlation with the Walsh codes, out of the generated quasi-orthogonal code representatives, and selecting a mask related to generation of the selected quasi-orthogonal code.

摘要翻译： 公开了一种用于在CDMA通信系统中生成四元复数准正交码的方法。 该方法包括产生M序列，然后产生与M序列具有良好全相关性质的特定序列; 生成用于将M序列转换成沃尔什码的列置换函数; 通过用列排列函数的列移位特定序列来生成候选掩码; 通过操作候选掩码和具有与候选掩码相同长度的沃尔什码产生准正交码表示; 以及从产生的准正交码表中选择满足与沃尔什码的部分相关性的准正交码，并且选择与选择的准正交码的生成相关的掩码。

公开(公告)号：US06594244B1

公开(公告)日：2003-07-15

申请号：US09480712

申请日：2000-01-07

申请人： Hoon Chang ,  Hee-Won Kang ,  So-Min Park

发明人： Hoon Chang ,  Hee-Won Kang ,  So-Min Park

IPC分类号： H04B7216

CPC分类号： H04L1/0061 ,  H04L1/0041 ,  H04L1/0078

摘要： A method for arranging CRC (Cyclic Redundancy Code) bits within logical transmission units (LTUs) in a CDMA communication system having a physical channel frame comprised of a plurality of LTUs arranged in line, with a physical layer CRC field and tail bits arranged after the LTUs. Each LTU includes a payload and a LTU CRC field for detecting errors in the LTU payload. In the CRC bit arranging method, the CRC field included in odd-numbered LTUs are arranged after the payload and the CRC field included in even-numbered LTUs are arranged before the payload in such a manner that a LTU CRC field of an even-numbered LTU is adjacent to a LTU CRC field of an odd-numbered LTU connected to said even-numbered LTU.

摘要翻译： 一种用于在具有由排列成行的多个LTU组成的物理信道帧的CDMA通信系统中的逻辑传输单元（LTU）内布置CRC（循环冗余码）位的方法，其中物理层CRC字段和排列在 LTU。 每个LTU包括用于检测LTU有效载荷中的错误的有效载荷和LTU CRC字段。 在CRC比特排列方法中，奇数LTU中包括的CRC字段被布置在有效载荷之后，并且包括在偶数LTU中的CRC字段被布置在有效载荷之前，使得偶数编号的LTU CRC字段 LTU与连接到所述偶数LTU的奇数LTU的LTU CRC字段相邻。

公开(公告)号：US06539008B1

公开(公告)日：2003-03-25

申请号：US09183989

申请日：1998-11-02

申请人： Jae-Min Ahn ,  Young-Ky Kim ,  Soon-Young Yoon ,  Hee-Won Kang ,  Felix Kwang-Wook Yie ,  Seung-Hyun Kong

发明人： Jae-Min Ahn ,  Young-Ky Kim ,  Soon-Young Yoon ,  Hee-Won Kang ,  Felix Kwang-Wook Yie ,  Seung-Hyun Kong

IPC分类号： H04B7005

CPC分类号： H04W52/221 ,  H04W52/225 ,  H04W52/58 ,  Y10S370/913

摘要： A power control bit inserting method between a base station and a terminal. The base station and the terminal each use a plurality of adjacent frequency bands as signal paths with independent signal paths of a real part and an imaginary part given to each frequency. In the power control bit inserting method, a unit time is set to a power control group period, n-bit data is allocated to each signal path, the power control group period is divided by the number of signal paths, and a power control bit is inserted in each divided segment, so that the insertion positions in the real and imaginary parts of each frequency are spaced from each other by n/2 bit and the start position of the real signal path of each frequency is inserted at an appointed bit position of the corresponding frequency.

摘要翻译： 基站与终端之间的功率控制位插入方法。 基站和终端各自使用多个相邻频带作为具有给予每个频率的实部和虚部的独立信号路径的信号路径。 在功率控制位插入方法中，将单位时间设定为功率控制组周期，将n位数据分配给每个信号路径，功率控制组周期除以信号路径数，功率控制位 被插入到每个分割段中，使得每个频率的实部和虚部中的插入位置彼此间隔开n / 2位，并且将每个频率的实际信号路径的开始位置插入指定的位置 的相应频率。

公开(公告)号：US06438119B1

公开(公告)日：2002-08-20

申请号：US09250662

申请日：1999-02-16

申请人： Young-Ky Kim ,  Jae-Min Ahn ,  Soon-Young Yoon ,  Hee-Won Kang ,  Hyun-Suk Lee ,  Jin-Soo Park ,  Min-Sou Lee

发明人： Young-Ky Kim ,  Jae-Min Ahn ,  Soon-Young Yoon ,  Hee-Won Kang ,  Hyun-Suk Lee ,  Jin-Soo Park ,  Min-Sou Lee

IPC分类号： H04B726

CPC分类号： H04B7/2628

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06437714B1

公开(公告)日：2002-08-20

申请号：US09294658

申请日：1999-04-19

申请人： Jae-Yoel Kim ,  Chang-Soo Park ,  Hee-Won Kang ,  Jun-Jin Kong ,  Jong-Seon No ,  Kyeong-Cheol Yang

发明人： Jae-Yoel Kim ,  Chang-Soo Park ,  Hee-Won Kang ,  Jun-Jin Kong ,  Jong-Seon No ,  Kyeong-Cheol Yang

IPC分类号： H03M700

CPC分类号： H04W52/30 ,  H03M7/4006 ,  H03M13/23 ,  H03M13/2903 ,  H03M13/2993 ,  H03M13/6356 ,  H03M13/6362 ,  H04B7/2628 ,  H04B10/25754 ,  H04J13/0077 ,  H04J13/16 ,  H04L1/0066 ,  H04L1/0068 ,  H04L51/04 ,  H04L51/28 ,  H04L51/38 ,  H04L65/1006 ,  H04L65/1016 ,  H04N19/109 ,  H04N19/139 ,  H04N19/625 ,  H04N19/91 ,  H04W4/12 ,  H04W4/14 ,  H04W8/26 ,  H04W72/042 ,  H04W76/12 ,  H04W88/085 ,  Y10S370/906 ,  Y10S370/907

摘要： A device and method for performing channel encoding using a frame structure having a termination effect in a recursive systemic encoder for a communication system. The channel encoding device having: an inserter for inserting at least one predefined bit in an input data bit stream at a predetermined position; and a channel encoder for encoding the bit-inserted data bit stream.

摘要翻译： 一种用于在通信系统的递归系统编码器中使用具有终止效应的帧结构来执行信道编码的装置和方法。 信道编码装置具有：插入器，用于在预定位置插入输入数据比特流中的至少一个预定义比特; 以及用于编码位插入数据比特流的信道编码器。

公开(公告)号：US06400703B1

公开(公告)日：2002-06-04

申请号：US09324423

申请日：1999-06-01

申请人： Chang-Soo Park ,  Jun-Jin Kong ,  Hee-Won Kang ,  Jae-Yoel Kim ,  Jong-Seon No ,  Kyeong-Cheol Yang

发明人： Chang-Soo Park ,  Jun-Jin Kong ,  Hee-Won Kang ,  Jae-Yoel Kim ,  Jong-Seon No ,  Kyeong-Cheol Yang

IPC分类号： H04B7208

CPC分类号： H04L1/0041 ,  H03M13/23 ,  H03M13/635 ,  H04J13/10 ,  H04J13/16 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/0071

摘要： A device and method for generating and distributing convolutional codes such that performance degradation due to a bad link environment may be minimized during channel decoding in a CDMA communication system. The convolutional encoder encodes transmission data at a coding rate of R=1/6 and can be used for a channel encoder. Such a channel encoder can be used in both a DS-CDMA communication system and a multicarrier CDMA communication system. When the channel encoder is used in the multicarrier CDMA communication system, the symbols outputted from multiple constituent encoders for the channel encoder are distributed to multiple carrier channels according to a predetermined rule, and the constituent encoders for the channel encoder can minimize the performance degradation of the overall channel encoder even though an output of a particular constituent encoder is completely off at the transmission channel.

摘要翻译： 用于生成和分配卷积码的装置和方法，使得在CDMA通信系统中的信道解码期间，由于不良链路环境导致的性能下降可能被最小化。 卷积编码器以R = 1/6的编码速率对传输数据进行编码，并可用于信道编码器。 这样的信道编码器可以在DS-CDMA通信系统和多载波CDMA通信系统中使用。 当在多载波CDMA通信系统中使用信道编码器时，从用于信道编码器的多个组成编码器输出的符号根据预定规则分配到多个载波信道，并且信道编码器的组成编码器可以最小化性能下降 即使特定构成编码器的输出在传输信道处完全关闭，整个信道编码器也是如此。

公开(公告)号：US06385437B1

公开(公告)日：2002-05-07

申请号：US09503764

申请日：2000-02-14

申请人： Chang-Soo Park ,  Jae-Min Ahn ,  Jae-Yoel Kim ,  Hee-Won Kang

发明人： Chang-Soo Park ,  Jae-Min Ahn ,  Jae-Yoel Kim ,  Hee-Won Kang

IPC分类号： H04B100

CPC分类号： H04W52/283 ,  H04W36/0094 ,  H04W52/12 ,  H04W52/288 ,  H04W52/362 ,  H04W52/44

摘要： Disclosed is a power control method for a mobile station which has at least one compressed mode frame. A compressed mode frame includes a data transmission duration where data is transmitted at a first frequency, and a data transmission-off duration where a second frequency is searched to perform an inter-frequency handoff to the second frequency. The transmission power during the data transmission duration is increased to compensate for the loss of transmission power during the data transmission-off duration. In the method, a base station sets a power control threshold depending on the length of the data transmission-off duration. The base station receives transmission power-increased data and compares the received power of the data signal with the power control threshold. The base station generates a power-up command when the power control threshold is higher than the receiving power, and generates a power-down command when the power control threshold is lower than the receiving power.

摘要翻译： 公开了一种具有至少一个压缩模式帧的移动台的功率控制方法。 压缩模式帧包括以第一频率发送数据的数据传输持续时间和搜索第二频率以执行到第二频率的频率间切换的数据传输关闭持续时间。 增加数据传输持续时间期间的传输功率以补偿在数据传输关闭持续时间期间传输功率的损失。 在该方法中，基站根据数据发送关闭持续时间的长度来设定功率控制阈值。 基站接收发送功率增加数据，并将数据信号的接收功率与功率控制阈值进行比较。 当功率控制阈值高于接收功率时，基站产生上电命令，并且当功率控制阈值低于接收功率时产生掉电命令。