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41. 发明申请

WO2005022792A3 METHOD OF CONSTRUCTING WIRELESS NETWORK FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEX AND TERMINAL EMPLOYING OFDMA METHOD 审中-公开
公开(公告)号：WO2005022792A3
公开(公告)日：2005-03-10
申请号：PCT/KR2004/002073
申请日：2004-08-18
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT Corporation , SK TELECOM CO., Ltd. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , YEH, Choong-Il , LIM, Hyoung-Soo , LEE, Yu-Ro , KWON, Dong-Seung , HWANG, Seung-Ku
发明人： YEH, Choong-Il , LIM, Hyoung-Soo , LEE, Yu-Ro , KWON, Dong-Seung , HWANG, Seung-Ku
IPC分类号： H04J11/00
摘要： Disclosed are a method of constructing a wireless network in an OFDM system using a single carrier and a terminal employing an OFDM method. The terminal discriminates a wireless network using multiple carriers from a wireless network using a single carrier through a downlink preamble, and acquires frame synchronization within a short period of time. In addition, the terminal determines a position of a CCS used by a cell/sector to which the terminal belongs. Furthermore, the invention proposes a pilot allocation method that can be applied to a wireless network using a single carrier, which obtains frequency diversity effects while effectively using resources. In the case where a wireless network operator uses N channels in N divided FFT domains, the actual number of channels is MN.

42. 发明申请

WO2007067006A1 METHOD AND APPARATUS FOR UPLINK TIMING SYNCHRONIZATION WITH RANGING SIGNAL IN MOBILE COMMUNICATION SYSTEM 审中-公开
标题翻译：用于移动通信系统中上行信号同步信号的上行时序同步的方法与装置
公开(公告)号：WO2007067006A1
公开(公告)日：2007-06-14
申请号：PCT/KR2006/005329
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. , LEE, Young-Ha , YU, Chang-Wahn , PARK, Youn-Ok
发明人： LEE, Young-Ha , YU, Chang-Wahn , PARK, Youn-Ok
IPC分类号： H04B7/26
CPC分类号： H04W56/0005 , H04L5/0007
摘要： When a base station of a time division duplex based mobile communication system receives an initial ranging request signal from a subscriber station, the base station generates initial ranging information including delay time information to the subscriber station, and receives uplink data delayed and transmitted using a delay time from the subscriber station. Also, when the subscriber station transmits an initial ranging request signal to the base station and receives initial ranging information including delay time information from the base station, the subscriber station establishes a transmission parameter value by using the transmission parameter value included in the initial ranging information and transmits uplink data by using the established delay time.
摘要翻译：当基于时分双工的移动通信系统的基站从用户站接收到初始测距请求信号时，基站向用户站生成包括延迟时间信息的初始测距信息，并且接收延迟并使用延迟发送的上行链路数据来自用户站的时间。此外，当用户台向基站发送初始测距请求信号并从基站接收包括延迟时间信息的初始测距信息时，用户台通过使用包含在初始测距信息中的传输参数值来建立传输参数值并通过使用建立的延迟时间来发送上行链路数据。

43. 发明申请

WO2007067002A2 APPARATUS AND METHOD FOR MONITORING BASE STATION SIGNAL IN COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS 审中-公开
标题翻译：用于在具有多个天线的通信系统中监测基站信号的装置和方法
公开(公告)号：WO2007067002A2
公开(公告)日：2007-06-14
申请号：PCT/KR2006005315
申请日：2006-12-08
申请人： SAMSUNG ELECTRONICS CO LTD , KOREA ELECTRONICS TELECOMM , SK TELECOM CO LTD , KT CORP , 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： H04W24/00 , H04W24/08 , H04W88/08
CPC分类号： H04W24/00 , H04B17/12 , H04W24/08 , H04W88/08
摘要： In a signal monitoring apparatus of a base station of a communication system having multiple 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 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 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. The at least one first signal is a signal processed from at least one target receive signal 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.
摘要翻译：在具有多个天线的通信系统的基站的信号监视装置中，发送/接收单元通过使用多个天线发送多个发送信号，或处理通过多个天线接收的多个接收信号。射频校准单元校准通过多个天线发射的发射信号，并处理多个发射信号中的至少一个目标发射信号，以便监测至少一个目标发射信号。信号监测单元接收至少一个第一信号或至少一个第二信号，并将所述至少一个第一信号或至少一个第二信号发送给用户设备。所述至少一个第一信号是从所述多个接收信号中的至少一个目标接收信号处理的信号，并且所述至少一个第二信号是通过控制所述射频校准单元从所述至少一个目标发射信号处理的信号。

44. 发明申请

WO2007037656A1 APPARATUS AND METHOD FOR AUTOMATIC GAIN CONTROL OF MOBILE STATION IN OFDM SYSTEM 审中-公开
标题翻译： OFDM系统中移动站自动增益控制的装置和方法
公开(公告)号：WO2007037656A1
公开(公告)日：2007-04-05
申请号：PCT/KR2006/003932
申请日：2006-09-29
申请人： SAMSUNG ELECTRONICS CO., LTD. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KT CORPORATION , SK TELECOM CO., LTD , HANARO TELECOM., INC. , KIM, Ki-Seok , KIM, Young-Il
发明人： KIM, Ki-Seok , KIM, Young-Il
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L27/261 , H04L27/3809
摘要： The present invention relates to an automatic gain control apparatus and method of a mobile station in an OFDM system. The present invention includes: identifying a preamble section and a data symbol section in a received frame signal; when a current symbol is the preamble section, measuring a power value of a preamble signal, comparing the measured power value of the preamble signal and a threshold value, and amplifying the received frame signal based on a predetermined gain value (gain = threshold - power value) according to a difference between the measured power value and the threshold value; when a data symbol section includes a pilot carrier, measuring an average power value of the pilot carrier in the data symbol when the data symbol section includes the pilot carrier, comparing the measured average power value of the pilot carrier and the threshold value, and amplifying the received frame signal based on a predetermined gain value (gain = threshold - pilot average power value) according to a difference; and when the data symbol section includes no pilot carrier, maintaining an existing gain, or performing an automatic gain control operation according to a gain estimated by using the pilot carrier during the data symbol section including the pilot carrier. Accordingly, the mobile station of the OFDM system that is robust to channel variation and various fading environments may be provided to efficiently perform the automatic gain control.
摘要翻译：本发明涉及OFDM系统中的移动台的自动增益控制装置和方法。本发明包括：识别接收到的帧信号中的前导码部分和数据符号部分; 当当前符号是前导码部分时，测量前同步信号的功率值，比较前导信号的测量功率值和阈值，并根据预定增益值（增益=阈值 - 功率）来放大接收到的帧信号值），根据测量的功率值和阈值之间的差; 当数据符号部分包括导频载波时，当数据符号部分包括导频载波时，测量数据符号中的导频载波的平均功率值，比较导频载波的测得的平均功率值和阈值，根据差值，基于预定增益值（增益=阈值 - 导频平均功率值）接收的帧信号; 并且当数据符号部分不包括导频载波，维持现有增益时，或者在包括导频载波的数据符号部分期间根据通过使用导频载波估计的增益执行自动增益控制操作。因此，可以提供对信道变化和各种衰落环境鲁棒的OFDM系统的移动站，以有效地执行自动增益控制。

45. 发明申请

WO2006054826A3 TRANSMITTING APPARATUS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING ACCESS SYSTEM CAPABLE OF CONTROLLING GAIN FOR VARIATION OF SUB-CHANNEL ALLOCATION AND METHOD FOR TRANSMITTING DATA THEREOF 审中-公开
标题翻译：正交频分复用接入系统中能够控制增益以改变子信道分配的发送设备及其数据发送方法
公开(公告)号：WO2006054826A3
公开(公告)日：2006-11-09
申请号：PCT/KR2005002959
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 , KIM DAE-HO , KIM JUN-WOO , PARK YOUN-OK
发明人： KIM DAE-HO , KIM JUN-WOO , PARK YOUN-OK
IPC分类号： H04J11/00
CPC分类号： H04L27/2626 , H04L5/023
摘要： The present invention relates to a transmitter of an OFDMA system capable of controlling a gain for variation of subchannel allocation, and a method thereof. The transmitter includes a subchannel number determining unit, a modulator, a digital/analogue converter, and a gain controller controlling the gain. The subchannel number determining unit determines the number of subchannels in use according to communication environments, and the modulator modulates transmission data with reference to the number of subchannels determined by the subchannel number determining unit and outputs the modulated transmission data. The digital/analogue converter converts the transmission data into analogue data and transmits the converted analogue data through a transmit antenna. The gain controller controls gains of the transmission data according to gain values corresponding to the number of subchannels.
摘要翻译：本发明涉及能够控制子信道分配变化的增益的OFDMA系统的发射机及其方法。发送器包括子信道号确定单元，调制器，数字/模拟转换器和控制增益的增益控制器。子信道数确定单元根据通信环境确定使用中的子信道的数量，并且调制器参考由子信道数确定单元确定的子信道的数量来调制传输数据，并输出调制的传输数据。数字/模拟转换器将传输数据转换成模拟数据，并通过发射天线发送转换后的模拟数据。增益控制器根据与子信道的数量对应的增益值来控制传输数据的增益。

46. 发明申请

WO2005060109A3 DEMODULATION APPARATUS FOR EFFICIENTLY EMBODYING ADAPTIVE MODULATION AND CODING METHOD IN OFDMA BASED PACKET COMMUNICATION SYSTEM AND METHOD THEREOF 审中-公开
标题翻译：用于基于OFDMA的分组通信系统中有效地实现自适应调制和编码方法的解调装置及其方法
公开(公告)号：WO2005060109A3
公开(公告)日：2006-08-31
申请号：PCT/KR2004002816
申请日：2004-11-03
申请人： UTE ELECTRONICS & TELECOMMUNICATIONS RES INST , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , KIM JUN-WOO , KIM YOUNG-HOON , CHAE SU-CHANG , PARK YOUN-OK
发明人： KIM JUN-WOO , KIM YOUNG-HOON , CHAE SU-CHANG , PARK YOUN-OK
IPC分类号： H04J11/00 , H04L27/34 , H04B20060101
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0009 , H04L27/2608
摘要： Disclosed is a demodulation apparatus for receiving signals by an adaptive modulation and coding method, and demodulating the signals, in an OFDMA based packet communication system, comprising: a QAM demapper for performing QAM demapping to the received signals by a modulation method using a maximum modulation ratio, until modulation methods for each of sub-channels are analyzed; a slot buffer for storing the data outputted from the QAM demapper; a channel decoder for decoding the data stored in the slot buffer and analyzing modulation methods for each sub-channels and transferring the analyzed modulation methods to the QAM demapper; and in at the same time, reading valid data from the data stored in the slot buffer, based on the analyzed modulation methods for each sub-channels, and demodulating the valid data.
摘要翻译：公开了一种用于在基于OFDMA的分组通信系统中通过自适应调制和编码方法接收信号并解调信号的解调装置，包括：QAM解映射器，用于通过使用最大调制的调制方法对所接收的信号进行QAM解映射比例，直到分析每个子信道的调制方法; 用于存储从QAM解映射器输出的数据的时隙缓冲器; 用于解码存储在时隙缓冲器中的数据并分析每个子信道的调制方法并将分析的调制方法传送到QAM解映射器的信道解码器; 并且同时，基于针对每个子信道的分析的调制方法和解调有效数据，从存储在时隙缓冲器中的数据读取有效数据。

47. 发明申请

WO2006065026A1 METHOD FOR DESIGNING OPERATION SCHEDULES OF FFT AND MIMO-OFDM MODEM THEREOF 审中-公开
标题翻译：用于设计FFT和MIMO-OFDM调制解调器的操作调度的方法
公开(公告)号：WO2006065026A1
公开(公告)日：2006-06-22
申请号：PCT/KR2005/003940
申请日：2005-11-22
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , KIM, Jun-Woo , JUNG, Jae-Gun , PARK, Youn-Ok
发明人： KIM, Jun-Woo , JUNG, Jae-Gun , PARK, Youn-Ok
IPC分类号： H04J11/00
CPC分类号： H04B7/0891 , H04B7/0669 , H04L27/263 , H04L27/265
摘要： The present invention provides a method for designing operation schedules of a fast Fourier transform (FFT) and a multiple input multiple output orthogonal frequency division multiplexing modem (MIMO-OFDM modem) thereof. According to the present invention, an operation speed of an FFT operator is set up, a receiving symbol is arranged in an OFDM symbol duration in an FFT after receiving the symbol, a transmitting symbol is arranged in an OFDM symbol duration in the FFT schedule before transmitting the symbol, a transmitting/receiving symbol which has the same timing is inserted into an idle symbol duration of the FFT schedule, an FFT schedule which is good to be deleted is deleted, and symbols of the deleted FFT schedule are re-arranged in order to not have an error occur in transmitting/receiving timing. According to the present invention, the FFT operation and the IFFT operation are processed by one FFT/IFFT operator in the MIMO-OFDM modulation/demodulation apparatus, so that symbols to be modulated/demodulated may be properly scheduled, a minimum number of FFT/IFFT operators may be needed, and a delay of data processing may be minimized.
摘要翻译：本发明提供一种用于设计快速傅立叶变换（FFT）及其多输入多输出正交频分复用调制解调器（MIMO-OFDM调制解调器）的操作计划的方法。根据本发明，建立FFT运算符的运算速度，在接收到符号之后，在FFT中以OFDM符号持续时间方式布置接收符号，在FFT调度表中以OFDM符号持续时间内排列发送符号发送符号时，将具有相同定时的发送/接收符号插入到FFT调度的空闲符号持续时间中，删除良好被删除的FFT调度，并且将删除的FFT调度的符号重新排列在为了在发送/接收定时中不发生错误。根据本发明，MIMO-OFDM调制/解调装置中的FFT / IFFT运算符对FFT运算和IFFT运算进行处理，从而可以适当地调整要调制/解调的符号，FFT / 可能需要IFFT运算符，并且数据处理的延迟可以被最小化。

48. 发明申请

WO2006062299A2 SUBCARRIER ALLOCATION APPARATUS AND METHOD, SUBCARRIER DE-ALLOCATION APPARATUS AND METHOD IN OFDM SYSTEM 审中-公开
标题翻译： SUBCARRIER分配装置和方法，OFDM系统中的SUBCARRIER去分配装置和方法
公开(公告)号：WO2006062299A2
公开(公告)日：2006-06-15
申请号：PCT/KR2005/003807
申请日：2005-11-10
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , KIM, Jun-Woo , CHAE, Su-Chang , LEE, Young-Ha , HONG, Eon-Young , PARK, Youn-Ok
发明人： KIM, Jun-Woo , CHAE, Su-Chang , LEE, Young-Ha , HONG, Eon-Young , PARK, Youn-Ok
IPC分类号： H04L27/26 , H04J11/00
CPC分类号： H04L5/0044 , H04L5/0048 , H04L5/0092
摘要： A subcarrier allocating apparatus allocating data to be transmitted to a plurality of orthogonal subcarriers in an orthogonal frequency division multiplexing (OFDM) system, the apparatus including: a logical index generator generating a logical index for allocating a data subcarrier to a physical index, the logical index being included with only data subcarriers and the physical index indicating a location of a substantial subcarrier within a symbol; an intermediate index converter converting the logical index into an intermediate index by performing a given operation on the generated logical index and a pilot location constant; and a physical index converter converting the intermediate index into a physical index based on the number of data subcarriers on the left and right sides of a null subcarrier for insertion of a guard interval formed by the null subcarrier.
摘要翻译：一种子载波分配装置，在正交频分复用（OFDM）系统中分配要发送到多个正交子载波的数据，该装置包括：逻辑索引发生器，其生成用于将数据子载波分配给物理索引的逻辑索引，逻辑索引仅包括数据子载波，物理索引指示符号内的实质子载波的位置; 中间索引转换器，通过对所生成的逻辑索引和导频位置常数执行给定的操作来将逻辑索引转换成中间索引; 以及物理指标转换器，其基于用于插入由所述无效副载波形成的保护间隔的无效副载波的左侧和右侧的数据子载波的数量将所述中间索引转换为物理索引。

49. 发明申请

WO2006062297A2 DEMODULATOR OF BASE STATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS 审中-公开
标题翻译：正交频分多址通信基站解调器
公开(公告)号：WO2006062297A2
公开(公告)日：2006-06-15
申请号：PCT/KR2005003791
申请日：2005-11-09
申请人： UTE ELECTRONICS & TELECOMMUNICATIONS RES INST , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , LEE YOUNG-HA , PARK YOUN-OK
发明人： LEE YOUNG-HA , PARK YOUN-OK
IPC分类号： H04J11/00
CPC分类号： H04L27/22 , H04L1/0026 , H04L1/18 , H04L5/0007 , H04L5/0053 , H04L27/2647
摘要： A base station demodulator according to the exemplary embodiment of the present invention includes a vector index demodulator, and a channel value detector. The vector index demodulator demodulates CQI or ARQ ACK/NACK channels by multiplying QPSK modulation signals transmitted as m subcarriers in a tile by m conjugate complexes corresponding to the m subcarriers, and determines the greatest value of the demodulation results as a vector index. The channel value detector inputs n vector indexes demodulated by the vector index demodulator to a first shift register, inputs n subsequent vector indexes to a second shift register, and detects a channel value for the CQI or the ARQ ACK/NACK by repeating the above vector index input to the first and second shift registers m-times.
摘要翻译：根据本发明的示例性实施例的基站解调器包括矢量索引解调器和信道值检测器。矢量索引解调器通过将与m个子载波相对应的m个共轭复数乘以作为m个子载波的QPSK调制信号，来解调CQI或ARQ ACK / NACK信道，并且将解调结果的最大值确定为矢量索引。信道值检测器将由矢量索引解调器解调的n个矢量索引输入到第一移位寄存器，将n个后续矢量索引输入到第二移位寄存器，并通过重复上述矢量来检测CQI或ARQ ACK / NACK的信道值索引输入到第一和第二移位寄存器m次。

50. 发明申请

WO2006059829A2 METHOD FOR AUTOMATIC GAIN CONTROL BEFORE INITIAL SYNCHRONIZATION IN OFDM SYSTEM AND APPARATUS THEREOF 审中-公开
标题翻译： OFDM系统中初始同步前自动增益控制的方法及其装置
公开(公告)号：WO2006059829A2
公开(公告)日：2006-06-08
申请号：PCT/KR2005/001980
申请日：2005-06-24
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, 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：本发明涉及用于在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设备包括：初始同步检查器，验证输入块样本（k）信号的初始同步是否已被执行; 帧分割器，其在初始同步未被执行的情况下将帧分割为用于输入块样本（k）信号的预定间隔B（k）参考值检查器，其将预定参考值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; 计数控制器，当由参考值检查器比较的差值Pref-Pcalc大于或小于预定值时，计数控制器增加或减少计数; 计数检查器，当输入块样本（k）达到最大值MAX时检查计数是大于还是小于0; 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。

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