公开(公告)号：KR100766065B1

公开(公告)日：2007-10-11

申请号：KR20060049370

申请日：2006-06-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM TAE JOON ,  EO IK SOO ,  KIM HYOUN KUK ,  PARK HYUN CHEOL

IPC: H04B7/04 ,  H04B7/08 ,  H04L27/26

CPC classification number: H04B7/0434 ,  H04B7/0413 ,  H04L1/0656 ,  H04W52/42

Abstract: An MIMO(Multi-Input Multi-Output) system and a method for demodulating a transmitting vector in the receiver of the system are provided to enable the receiver to detect a transmitting vector on the basis of a transmitting antenna signal of which the modulation order is the lowest, thereby easily detecting the transmitted transmitting vector. A receiver in an MIMO(Multi-Input Multi-Output) system comprises the followings: a first multiplication unit(320) which multiplies a receiving vector(r) received through an antenna; a substitute transmitting vector detecting unit which detects the signal of a transmitting antenna of which the modulation order is the lowest in the receiving vector outputted from a first multiplication unit, creates symbol substitutes as much as the modulation order of the detected signal, and detects a substitute transmitting vector by using each symbol substitute; a transmitting vector determining unit(340) which separately calculates a distance between the substitute transmitting vector and the receiving vector detected in the substitute transmitting vector detecting unit and determines the final transmitting vector; and a demodulation unit(350) which demodulates and outputs the final transmitting vector determined in the transmitting vector determining unit.

Abstract translation: 提供MIMO（多输入多输出）系统和解调系统接收机中的发射矢量的方法，以使得接收机能够基于发射天线信号来检测发射矢量，其中调制阶数为 最低，从而容易地检测发射的发射矢量。 MIMO（多输入多输出）系统中的接收机包括以下：第一乘法单元（320），其乘以通过天线接收的接收矢量（r）; 检测从第一乘法单元输出的接收向量中的调制次序最低的发送天线的信号的替代发送矢量检测单元产生与检测信号的调制次序一样多的符号替换， 通过使用每个符号替代替代传输矢量; 发送矢量确定单元，其分别计算替代发送矢量与在替代发送矢量检测单元中检测到的接收矢量之间的距离，并确定最终发送矢量; 以及解调单元，其解调并输出在所述发送向量确定单元中确定的最终发送向量。

公开(公告)号：KR100766322B1

公开(公告)日：2007-10-11

申请号：KR20060049378

申请日：2006-06-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM TAE JOON ,  EO IK SOO ,  KIM HYOUN KUK ,  PARK HYUN CHUL

IPC: H04B7/04 ,  H01Q3/26

CPC classification number: H04W52/42 ,  H04B7/0434

Abstract: A transmitter in an MIMO(Multi-Input Multi-Output) system and a data transmitting method thereof are provided to generate greater performance gain than an existing open loop V-BLAST system because of using a different modulation method and different power by transmitting antennas. A transmitter in an MIMO(Multi-Input Multi-Output) system comprises the followings: a memory(201) which stores a modulation method by antennas and a power allocation coefficient; a modulation unit(202) which separately modulates transmission data according to the modulation method by antennas stored in the memory if the transmission data is inputted; and a power control unit(204) which controls the power of each transmission data modulated in the modulation unit according to the power allocation coefficient by antennas stored in the memory and transmits the transmission data through a corresponding antenna.

Abstract translation: 提供MIMO（多输入多输出）系统中的发射机及其数据传输方法，以产生比现有开环V-BLAST系统更大的性能增益，因为通过发射天线使用不同的调制方法和不同的功率。 MIMO（多输入多输出）系统中的发射机包括：存储器（201），其通过天线存储调制方式和功率分配系数; 如果传输数据被输入，调制单元（202）根据调制方法分别调制存储在存储器中的天线的传输数据; 以及功率控制单元，其通过存储在存储器中的天线根据功率分配系数控制在调制单元中调制的每个发送数据的功率，并通过相应的天线发送发送数据。

公开(公告)号：KR20070101513A

公开(公告)日：2007-10-17

申请号：KR20060032627

申请日：2006-04-11

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM IN GI ,  PARK HYUNG IL ,  BAEK YOUNG SEOK ,  KIM HYUK ,  KIM TAE JOON ,  KIM KYUNG SOO ,  EO IK SOO ,  JUNG HEE BUM

IPC: H04L27/26 ,  H04L7/00

CPC classification number: H04L27/2662 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/06 ,  H04L27/2657

Abstract: A modulation device, a demodulation device and a wireless modem are provided to reduce power consumption during an active mode by disconnecting a driving clock during a standby period. A wireless modem includes a wireless core module(60), a modulator(10), a demodulator(20), a synchronizer(30), and a clock controller(40). The wireless core module transmits and receives wireless signals. The modulator converts data to be transmitted into the wireless signal and delivers the wireless signal to the wireless core module. The demodulator converts the signal from the wireless core module to reception data. The synchronizer adjusts a synchronization of the signal from the wireless core module. The clock controller generates driving clocks for the modulator, demodulator, and the synchronizer.

Abstract translation: 提供调制装置，解调装置和无线调制解调器以通过在待机期间断开驱动时钟来在活动模式期间降低功耗。 无线调制解调器包括无线核心模块（60），调制器​​（10），解调器（20），同步器（30）和时钟控制器（40）。 无线核心模块发送和接收无线信号。 调制器将要传输的数据转换成无线信号，并将无线信号传送到无线核心模块。 解调器将来自无线核心模块的信号转换为接收数据。 同步器调整来自无线核心模块的信号的同步。 时钟控制器产生调制器，解调器和同步器的驱动时钟。