专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008069603A1 DEVICE AND METHOD FOR CONTROLLING POWER 审中-公开
标题翻译：用于控制功率的装置和方法
公开(公告)号：WO2008069603A1
公开(公告)日：2008-06-12
申请号：PCT/KR2007/006328
申请日：2007-12-06
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KIM, Dae-Ho , SOHN, Kyung-Yeol , PARK, Youn-Ok , AHN, Jee-Hwan
发明人： KIM, Dae-Ho , SOHN, Kyung-Yeol , PARK, Youn-Ok , AHN, Jee-Hwan
IPC分类号： H04L27/26
CPC分类号： H04W52/52 , H04W52/04 , H04W52/08 , H04W52/10 , H04W52/283 , H04W52/367
摘要： A power controller of a communication system includes a power amplifier, a power controller, and a gain controller. The power amplifier amplifies transmission power of a transmission signal, and the power controller controls a gain of the power amplifier by using a received signal. The gain controller measures a distance between a transmitter having transmitted the received signal and the power controller, and applies a power concentration gain depending on the distance to the transmission signal.
摘要翻译：通信系统的功率控制器包括功率放大器，功率控制器和增益控制器。功率放大器放大发送信号的发送功率，功率控制器通过使用接收信号来控制功率放大器的增益。增益控制器测量发送接收信号的发射机与功率控制器之间的距离，并且根据与发射信号的距离来施加功率集中增益。

2. 发明申请

WO2007067004A3 TERMINAL AND METHOD FOR CONTROLLING TRANSMISSION POWER 审中-公开
公开(公告)号：WO2007067004A3
公开(公告)日：2007-06-14
申请号：PCT/KR2006/005318
申请日：2006-12-08
申请人： SAMSUNG ELECTRONICS CO., LTD. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SK TELECOM CO., LTD , KT CORPORATION , HANARO TELECOM., INC. , KIM, Dae-Ho , KIM, Jun-Woo , SOHN, Kyung-Yeol , PARK, Hyeong-Sook , PARK, Youn-Ok
发明人： KIM, Dae-Ho , KIM, Jun-Woo , SOHN, Kyung-Yeol , PARK, Hyeong-Sook , PARK, Youn-Ok
IPC分类号： H04B7/005 , H04B1/69 , H04B1/40 , H04B7/26 , H04L27/26
摘要： A terminal of a communication system includes a power amplifier (400), an open-loop power controller (500), a gain controller (200), a modulator (100), and a digital/analog converter (300). The power amplifier (400) amplifies transmission power of a transmission signal. The open-loop power controller (500) measures a received signal strength to control the transmission power, and increases a gain of the power amplifier according to the received signal strength. The gain controller (200) sets a power concentration gain and applies the power concentration gain to the transmission signal when the gain of the power amplifier (400) is maximized. The modulator (100) modulates the transmission signal. The digital/analog converter (300) converts an input signal to an analog signal. The gain controller (200) applies the power concentration gain to the transmission signal modulated by the modulator (100), and transmits the power concentration gain to the digital/analog converter (300).

3. 发明申请

WO2007067002A3 APPARATUS AND METHOD FOR MONITORING BASE STATION SIGNAL IN COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS 审中-公开
公开(公告)号：WO2007067002A3
公开(公告)日：2007-06-14
申请号：PCT/KR2006/005315
申请日：2006-12-08
申请人： SAMSUNG ELECTRONICS CO., LTD. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SK TELECOM CO., LTD. , KT CORPORATION , HANARO TELECOM., INC. , BANG, Young-Jo , PARK, Youn-Ok , LEE, Yong-Su
发明人： BANG, Young-Jo , PARK, Youn-Ok , LEE, Yong-Su
IPC分类号： H04Q7/34 , H04B17/00 , H04B7/04
摘要： In a signal monitoring apparatus of a base station of a communication system having multipl antennas, a transmitting/receiving unit transmits a plurality of transmit signals by using the multiple antennas or processes a plurality of receive signals received through the multiple antennas. A radio frequency calibration unit (350) calibrates the transmit signals transmitted through the multiple antennas, and processes at least one target transmit signal among the plurality of transmit signals so as to monitor the at least one target transmit signal. A signal monitoring unit (360) receives at least one first signal or at least one second signal, and transmits the at least one first signal or the at least one second signal to user equipment (370). The at least one first signal is a signal processed from at least one target receive sign among the plurality of receive signals, and the at least one second signal is a signal processed from the at least one target transmit signal by controlling the radio frequency calibration unit (350).

4. 发明申请

WO2006059829A3 METHOD FOR AUTOMATIC GAIN CONTROL BEFORE INITIAL SYNCHRONIZATION IN OFDM SYSTEM AND APPARATUS THEREOF 审中-公开
标题翻译： OFDM系统初始同步之前的自动增益控制方法及其设备
公开(公告)号：WO2006059829A3
公开(公告)日：2006-11-02
申请号：PCT/KR2005001980
申请日：2005-06-24
申请人： KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , LEE YONG-SU , PARK YOUN-OK , KIM JUN-WOO , BANG YOUNG-JO
发明人： LEE YONG-SU , PARK YOUN-OK , KIM JUN-WOO , BANG YOUNG-JO
IPC分类号： H03G3/30 , H04L27/26
CPC分类号： H03G3/3078 , H04L27/2647 , H04L27/2662
摘要： The present invention relates to a method for automatic gain control (AGC) before an initial synchronization of a mobile station modem in OFDM system, and an apparatus thereof. The AGC apparatus includes: an initial synchronization inspector that verifies whether an initial synchronization for an input block sample (k) signal has been performed; a frame divider that divides a frame into predetermined intervals B(k) for the input block sample(k) signal in the case that the initial synchronization has not been performed; a reference value inspector that compares a difference value Pref-Pcalc, between a predetermined reference value Pref and sample data average energy Pcalc, with a predetermined value; a count controller that increases or decreases the count when the difference value Pref-Pcalc compared by the reference value inspector is greater or less than the predetermined value; a count inspector that inspects whether the count is greater or less than 0 when the input block sample (k) reaches a maximum value MAX; and a gain controller which increases or decreases the gain, level by level, according to the count inspection result of the count inspector.
摘要翻译：本发明涉及OFDM系统中的移动台调制解调器的初始同步之前的自动增益控制（AGC）的方法及其装置。 AGC装置包括：初始同步检查器，其验证是否已经执行了输入块样本（k）信号的初始同步; 在没有执行初始同步的情况下，对于输入块样本（k）信号将帧划分成预定间隔B（k）的帧分割器; 参考值检查器，将预定参考值Pref和采样数据平均能量Pcalc之间的差值Pref-Pcalc与预定值进行比较; 当由参考值检查器比较的差值Pref-Pcalc大于或小于预定值时增加或减少计数的计数控制器; 当输入块样本（k）达到最大值MAX时，检查计数是否大于或小于0的计数检查器; 以及根据计数检查员的计数检查结果逐级增加或减少增益的增益控制器。

5. 发明申请

WO2006062380A3 UPLINK TILE INDEX GENERATION APPARATUS AND A UPLINK SUBCHANNEL ALLOCATION APPARATUS OF AN OFDMA SYSTEM 审中-公开
公开(公告)号：WO2006062380A3
公开(公告)日：2006-06-15
申请号：PCT/KR2005/004229
申请日：2005-12-09
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , LEE, Young Ha , YU, Chang-Wahn , KIM, Jun-Woo , PARK, Youn-Ok
发明人： LEE, Young Ha , YU, Chang-Wahn , KIM, Jun-Woo , PARK, Youn-Ok
IPC分类号： H04J11/00
摘要： A tile index generation apparatus for allocating subchannels of a control channel and a diversity channel, a subchannel allocation apparatus for allocating subchannels of a diversity channel, and a subchannel allocation apparatus for allocating subchannels of an adaptive modulation coding (AMC) channel, which are used for an uplink of an orthogonal frequency division multiplexing access (OFDMA) system, are provided. With these subchannel allocation apparatuses, optimum designs for the uplink subchannel allocation in the OFDM scheme can be provided to a modulator of a subscriber station and a demodulator of a base station, and so the uplink subchannel allocation apparatus has a simple structure and an enhanced transmission speed.

6. 发明申请

WO2006062291A2 A DIGITAL CLIPPING METHOD FOR A TRANSMITTER OF AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
标题翻译：正交频分多址接入系统发射机的数字剪切方法
公开(公告)号：WO2006062291A2
公开(公告)日：2006-06-15
申请号：PCT/KR2005/003575
申请日：2005-10-26
申请人： Electronics and Telecommunications Research Institute , SAMSUNG ELECTRONICS CO., LTD. , KT Corporation , SK Telecom Co., Ltd. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , PARK, Hyeong-sook , PARK, Youn-ok
发明人： PARK, Hyeong-sook , PARK, Youn-ok
IPC分类号： H04J11/00
CPC分类号： H04L27/2623
摘要： The present invention relates to a digital clipping method for reducing a high peak-to-average power ratio (PAPR) of a transmission signal in a transmitter of an orthogonal frequency division multiplexing access (OFDMA) system. In the method, a) the transmission signal to be digitally clipped is divided into real and imaginary parts, b) magnitudes of the real and imaginary part signals are divided into a plurality clipping levels, and c) the transmission signal is respectively clipped by comparing the real and imaginary part signals with the plurality of clipping levels while allowing phase errors. In c), a plurality of comparators is used to respectively compare the real and imaginary parts of the complex number transmission signal with the plurality of clipping levels.
摘要翻译：本发明涉及一种用于降低正交频分多路复用接入（OFDMA）系统的发射机中的发送信号的高峰值与平均功率比（PAPR）的数字削波方法。在该方法中，a）要被数字剪切的传输信号被分成实部和虚部，b）实部和虚部信号的大小被划分为多个削波电平，c）通过比较来分别传输发送信号具有多个限幅电平的实部和虚部信号同时允许相位误差。在c）中，使用多个比较器来分别比较复数传输信号的实部和虚部与多个限幅电平。

7. 发明申请

WO2006054825A3 APPARATUS AND METHOD FOR GENERATING RANGING PSEUDO NOISE CODE 审中-公开
公开(公告)号：WO2006054825A3
公开(公告)日：2006-05-26
申请号：PCT/KR2005/002952
申请日：2005-09-07
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , SOHN, Kyung-Yeol , PARK, Youn-Ok
发明人： SOHN, Kyung-Yeol , PARK, Youn-Ok
IPC分类号： H04J11/00
摘要： Disclosed is an apparatus for generating a ranging pseudo noise code used for a terminal of a portable internet system of an OFDM access scheme. The apparatus for generating ranging pseudo noise code detects a cell ID number using a preamble signal transmitted from a base station covering the terminal, detects a ranging pseudo noise code mask value using the detected cell ID number and system parameters input from the base station, and generates a ranging pseudo noise code using the detected cell ID number and the ranging pseudo noise code mask value. With the above structure, a constant initial value can be used irregardless of the cell ID number of the base station, and a desired ranging pseudo noise code can be generated as fast as possible so as to have a desired offset.

8. 发明申请

WO2006054825A2 APPARATUS AND METHOD FOR GENERATING RANGING PSEUDO NOISE CODE 审中-公开
标题翻译：用于生成范围噪声噪声代码的装置和方法
公开(公告)号：WO2006054825A2
公开(公告)日：2006-05-26
申请号：PCT/KR2005002952
申请日：2005-09-07
申请人： KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , SOHN KYUNG-YEOL , PARK YOUN-OK
发明人： SOHN KYUNG-YEOL , PARK YOUN-OK
IPC分类号： H04J13/00 , H04J13/10
CPC分类号： H04J13/10 , H04J13/0022 , H04L5/023
摘要： Disclosed is an apparatus for generating a ranging pseudo noise code used for a terminal of a portable internet system of an OFDM access scheme. The apparatus for generating ranging pseudo noise code detects a cell ID number using a preamble signal transmitted from a base station covering the terminal, detects a ranging pseudo noise code mask value using the detected cell ID number and system parameters input from the base station, and generates a ranging pseudo noise code using the detected cell ID number and the ranging pseudo noise code mask value. With the above structure, a constant initial value can be used irregardless of the cell ID number of the base station, and a desired ranging pseudo noise code can be generated as fast as possible so as to have a desired offset.
摘要翻译：公开了一种用于生成用于OFDM接入方案的便携式因特网系统的终端的测距伪噪声码的装置。用于产生测距伪噪声代码的装置使用从覆盖终端的基站发送的前导信号来检测小区ID号，使用检测到的小区ID号和从基站输入的系统参数来检测测距伪噪声码掩码值，以及使用检测到的小区ID号码和测距伪噪声码掩码值，生成测距伪噪声码。利用上述结构，无论基站的小区ID号码如何，都可以使用恒定的初始值，并且可以尽可能快地生成期望的测距伪噪声码，以便具有期望的偏移。

9. 发明申请

WO2008050967A1 DETECTION METHOD AND APPARATUS FOR MULTIPLEXED MIMO SYSTEMS 审中-公开
标题翻译：多重MIMO系统的检测方法和装置
公开(公告)号：WO2008050967A1
公开(公告)日：2008-05-02
申请号：PCT/KR2007/005055
申请日：2007-10-16
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD , BAHNG, Seung-Jae , PARK, Youn-Ok
发明人： BAHNG, Seung-Jae , PARK, Youn-Ok
IPC分类号： H04J15/00 , H04B7/04
CPC分类号： H04L1/0631 , H04L1/0656 , H04L25/03006 , H04L2025/03426
摘要： The present invention relates to a signal detection method and a receiving apparatus in a multiple input multiple output (MIMO) system. In the receiving apparatus of the MIMO system according to an exemplary embodiment of the present invention, channel-estimated layers for received signals are sequentially realigned from a layer having a high signal-to-noise ratio (SNR) to a layer having a low SNR. Candidate groups of each corresponding layer are set according to the realigned layers, and a final transmitting signal vector is detected from the set candidate groups.
摘要翻译：本发明涉及多输入多输出（MIMO）系统中的信号检测方法和接收装置。在根据本发明的示例性实施例的MIMO系统的接收装置中，用于接收信号的信道估计层从具有高信噪比（SNR）的层到具有低SNR的层顺序重新排列。每个对应层的候选组根据重新排列的层被设置，并且从设置的候选组中检测最终的发送信号向量。

10. 发明申请

WO2006065020A3 MOBILE STATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING ACCESS SYSTEM AND TRANSMIT POWER CONTROL METHOD THEREOF 审中-公开
标题翻译：正交频分多址接入系统中的移动台及其发射功率控制方法
公开(公告)号：WO2006065020A3
公开(公告)日：2006-11-02
申请号：PCT/KR2005002972
申请日：2005-09-08
申请人： KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , KIM DAE-HO , PARK YOUN-OK
发明人： KIM DAE-HO , PARK YOUN-OK
IPC分类号： H04B7/26 , H04J11/00 , H04W52/08 , H04W52/10
CPC分类号： H04W52/10 , H04L27/2626 , H04W52/08 , H04W52/146 , H04W52/245 , H04W52/246 , H04W52/52
摘要： The present invention relates to a mobile station of an OFDMA sytem and a transmit power control method thereof. The mobile station includes a modulator (210), a variable gain amplifier (240), a gain controller (220), and a power controller. The modulator (210) modulates transmit data according ot the number of allocated subchannels, and the variable gain amplifier (240) amplifies the transmit data. The gain controller (220) controls a gain of the transmit data inputted to the varibla gain amplifier (240) according to a subchannel gain value corresponding to the number of subchannels. The power controller calculates a power control gain for controlling power of the transmit data except the subchannel gain value based on the signal received from the base station and outputs the power control gain the variable gain amplifier (240).
摘要翻译：本发明涉及OFDMA系统的移动台及其发射功率控制方法。移动台包括调制器（210），可变增益放大器（240），增益控制器（220）和功率控制器。调制器（210）根据所分配的子信道的数量来调制发送数据，并且可变增益放大器（240）放大发送数据。增益控制器（220）根据对应于子信道数量的子信道增益值来控制输入到变倍增益放大器（240）的发送数据的增益。功率控制器基于从基站接收到的信号，计算用于控制除了子信道增益值之外的发送数据的功率的功率控制增益，并输出功率控制增益的可变增益放大器（240）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式