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1. 发明授权

US07103332B2 Apparatus and method for compensating for frequency offset in a mobile communication system 有权
标题翻译：用于补偿移动通信系统中的频率偏移的装置和方法
公开(公告)号：US07103332B2
公开(公告)日：2006-09-05
申请号：US10799034
申请日：2004-03-12
申请人： Pil-Soon Choi , Mi-Hyun Son , Seong-Soo Lee , Kwy-Ro Lee
发明人： Pil-Soon Choi , Mi-Hyun Son , Seong-Soo Lee , Kwy-Ro Lee
IPC分类号： H04B1/18 , H04B17/00
CPC分类号： H03D3/007 , H04L27/22 , H04L2027/0024 , H04L2027/0046 , H04L2027/0065
摘要： An apparatus and method for compensating for the frequency offset of a received signal in a receiving apparatus of a mobile communication system. In the present invention, a sine component is calculated by adding I and Q channel signals resulting from downconverting a training sequence inserted between data symbols, and a cosine component is calculated by subtracting the Q channel signal from the I channel signal. Using the cosine and sine components at two time points, tangent components for the two time points are computed and thus first and second phase values are obtained. The frequency offset is estimated by determining the slope of a second-order line derived from the first and second phase values. The frequency offset of the received signal is compensated for based on the estimated frequency offset.
摘要翻译：一种用于补偿移动通信系统的接收装置中的接收信号的频率偏移的装置和方法。在本发明中，通过将插入在数据符号之间的训练序列下变频得到的I和Q信道信号相加，计算出正弦分量，并且通过从I信道信号中减去Q信道信号来计算余弦分量。在两个时间点使用余弦和正弦分量，计算两个时间点的切线分量，从而获得第一和第二相位值。通过确定从第一和第二相位值导出的二阶线的斜率来估计频率偏移。基于估计的频率偏移来补偿接收信号的频率偏移。

2. 发明授权

US09331736B2 Method and apparatus for processing signals at time division duplex transceiver 有权
标题翻译：用于在时分双工收发器处理信号的方法和装置
公开(公告)号：US09331736B2
公开(公告)日：2016-05-03
申请号：US12860038
申请日：2010-08-20
申请人： Pil-Soon Choi
发明人： Pil-Soon Choi
IPC分类号： H04J3/00 , H04B1/56 , H04B1/403
CPC分类号： H04B1/56 , H04B1/403
摘要： Provided is a time division duplex (TDD) transceiver. A receiver chain processing received signals and a transmitter chain processing signals to be transmitted share an electronic component used in a circuit, such as an amplifier, a mixer, a filter, etc., so that the size of a semiconductor die needed to manufacture a radio frequency (RF) chip can be reduced.
摘要翻译：提供了时分双工（TDD）收发器。接收机链处理接收信号和要发送的发射机链处理信号共享用于诸如放大器，混频器，滤波器等的电路中使用的电子部件，使得制造半导体芯片的尺寸射频（RF）芯片可以减少。

3. 发明授权

US08340035B2 Method and apparatus for changing communication link between source devices and sink devices 有权
标题翻译：用于改变源设备和宿设备之间的通信链路的方法和设备
公开(公告)号：US08340035B2
公开(公告)日：2012-12-25
申请号：US12629468
申请日：2009-12-02
申请人： Jae-min Lee , Pil-soon Choi , Chan-yeul Kwon , Ji-seong Oh , Jae-hwa Kim
发明人： Jae-min Lee , Pil-soon Choi , Chan-yeul Kwon , Ji-seong Oh , Jae-hwa Kim
IPC分类号： H04Q7/00 , H04L12/28 , H04J3/26
CPC分类号： H04L5/14 , H04N21/43615 , H04N21/43637
摘要： Provided is a method of changing a communication link between source devices and sink devices. The method includes in a first downlink period, broadcasting an uplink period allocation message to the sink devices and passive source devices by an active source device, which establishes a communication link with a primary sink device from among the sink devices; during a first uplink period, broadcasting by a primary passive source device a link set message for establishing a communication link with the primary sink device to all the source devices in the network; during a second downlink period, relaying the link set message to all the sink devices in the network, wherein the link set message is relayed by the active source device; and during a second uplink period, establishing a communication link between the primary sink device and the primary passive source device by the primary sink device.
摘要翻译：提供了一种改变源设备和宿设备之间的通信链路的方法。该方法包括在第一下行链路周期中，通过有源源设备向宿设备和无源源设备广播上行链路周期分配消息，该有源源设备与宿设备之间建立与主宿设备的通信链路; 在第一上行链路周期期间，通过主要无源设备广播链路集消息，用于与主宿设备建立与网络中的所有源设备的通信链路; 在第二下行链路周期期间，将所述链路集消息中继到所述网络中的所有宿设备，其中所述链路集消息由所述活动源设备中继; 并且在第二上行链路周期期间，通过主宿设备建立主宿设备和主无源源设备之间的通信链路。

4. 发明授权

US07130589B2 Self-calibrating apparatus and method in a mobile transceiver 有权
标题翻译：移动收发器中的自校准装置和方法
公开(公告)号：US07130589B2
公开(公告)日：2006-10-31
申请号：US10815445
申请日：2004-04-01
申请人： Kwy-Ro Lee , Pil-Soon Choi , Mi-Hyun Son , Seong-Soo Lee
发明人： Kwy-Ro Lee , Pil-Soon Choi , Mi-Hyun Son , Seong-Soo Lee
IPC分类号： H04B17/00 , H03C1/62 , H04Q7/20
CPC分类号： H04L27/364 , H04B17/0085 , H04B17/21 , H04L2027/0016 , H04L2027/0018 , H04L2027/0026
摘要： An apparatus and method for self-calibrating mismatching orthogonal signals and non-linearity of a circuit occurring in a mobile transceiver. For this, in a mobile terminal, a transmitter is used as a signal generator and a receiver is used as a response characteristic measurer. A base band processor calibrates mismatching signals and non-linearity in a reception side and a transmission side, based on a test signal received via the transmitter and a test signal received via the receiver.
摘要翻译：用于自校准错配正交信号和在移动收发机中发生的电路的非线性的装置和方法。为此，在移动终端中，使用发射机作为信号发生器，并且使用接收机作为响应特性测量器。基带处理器基于经由发送器接收的测试信号和经由接收器接收的测试信号来校准接收侧和发送侧的不匹配信号和非线性。

5. 发明授权

US08170064B2 Method and apparatus for orthogonal frequency division multiplexing communication 有权
标题翻译：用于正交频分复用通信的方法和装置
公开(公告)号：US08170064B2
公开(公告)日：2012-05-01
申请号：US11739803
申请日：2007-04-25
申请人： Pil-soon Choi , Ji-sung Oh
发明人： Pil-soon Choi , Ji-sung Oh
IPC分类号： H04J1/00
CPC分类号： H04L27/2602 , H04L1/06 , H04L27/0006 , H04W72/0453 , H04W72/082
摘要： A method and apparatus for transmitting and receiving a digital signal using an orthogonal frequency division multiplexing (OFDM) communication system are provided. In this method, subcarriers are split into a plurality of subcarrier groups according to available frequency bandwidths and are respectively transmitted in a transmitting portion and the subcarrier groups are combined and are restored to the original signal in a receiving portion. Therefore, wireless resources may be used efficiently by combining with cognitive radio technology.
摘要翻译：提供了一种使用正交频分复用（OFDM）通信系统发送和接收数字信号的方法和装置。在该方法中，根据可用的频带宽度将子载波分割为多个子载波组，并且在发送部分中分别发送子载波组，并在接收部分恢复为原始信号。因此，可以通过结合认知无线电技术有效地使用无线资源。

6. 发明申请

US20100135259A1 METHOD AND APPARATUS FOR CHANGING COMMUNICATION LINK BETWEEN SOURCE DEVICES AND SINK DEVICES 有权
标题翻译：用于更改源设备和SINK设备之间的通信链路的方法和设备
公开(公告)号：US20100135259A1
公开(公告)日：2010-06-03
申请号：US12629468
申请日：2009-12-02
申请人： Jae-min LEE , Pil-soon CHOI , Chan-yeul KWON , Ji-seong OH , Jae-hwa KIM
发明人： Jae-min LEE , Pil-soon CHOI , Chan-yeul KWON , Ji-seong OH , Jae-hwa KIM
IPC分类号： H04J3/00
CPC分类号： H04L5/14 , H04N21/43615 , H04N21/43637
摘要： Provided is a method of changing a communication link between source devices and sink devices. The method includes in a first downlink period, broadcasting an uplink period allocation message to the sink devices and passive source devices by an active source device, which establishes a communication link with a primary sink device from among the sink devices; during a first uplink period, broadcasting by a primary passive source device a link set message for establishing a communication link with the primary sink device to all the source devices in the network; during a second downlink period, relaying the link set message to all the sink devices in the network, wherein the link set message is relayed by the active source device; and during a second uplink period, establishing a communication link between the primary sink device and the primary passive source device by the primary sink device.
摘要翻译：提供了一种改变源设备和宿设备之间的通信链路的方法。该方法包括在第一下行链路周期中，通过有源源设备向宿设备和无源源设备广播上行链路周期分配消息，该有源源设备与宿设备之间建立与主宿设备的通信链路; 在第一上行链路周期期间，通过主要无源设备广播链路集消息，用于与主宿设备建立与网络中的所有源设备的通信链路; 在第二下行链路周期期间，将所述链路集消息中继到所述网络中的所有宿设备，其中所述链路集消息由所述活动源设备中继; 并且在第二上行链路周期期间，通过主宿设备建立主宿设备和主无源源设备之间的通信链路。

7. 发明申请

US20080151977A1 Method and apparatus for compensating for mismatch occurring in radio frequency quadrature transceiver using direct-conversion scheme 有权
标题翻译：用于使用直接转换方案来补偿在射频正交收发器中出现的失配的方法和装置
公开(公告)号：US20080151977A1
公开(公告)日：2008-06-26
申请号：US11790118
申请日：2007-04-24
申请人： Pil-soon Choi
发明人： Pil-soon Choi
IPC分类号： H04B1/38 , H04L27/12 , H04L27/36
CPC分类号： H03D3/009 , H04L27/2089 , H04L27/364 , H04L27/3809 , H04L27/3863
摘要： A method and apparatus for compensating for a mismatch in a radio frequency (RF) quadrature transceiver using a direct-conversion scheme is provided. The method includes setting an amplification gain for a baseband quadrature signal to be larger than an amplification gain for a baseband in-phase signal in a reception module; receiving only a baseband in-phase signal in a transmission module; and compensating for a phase mismatch on a basis of a signal output from a quadrature output port. The apparatus includes a phase mismatch compensator which sets an amplification gain for a baseband quadrature signal to be larger than an amplification gain for a baseband in-phase signal in a reception module, inputs only a baseband in-phase signal to a transmission module, and compensates for a phase mismatch on a basis of a signal output from a quadrature output port.
摘要翻译：提供了一种使用直接转换方案来补偿射频（RF）正交收发器中的失配的方法和装置。该方法包括将基带正交信号的放大增益设置为大于接收模块中的基带同相信号的放大增益; 在传输模块中仅接收基带同相信号; 并且基于从正交输出端口输出的信号来补偿相位失配。该装置包括相位失配补偿器，其将基带正交信号的放大增益设置为大于接收模块中的基带同相信号的放大增益，仅将基带同相信号输入到发送模块，以及基于从正交输出端口输出的信号补偿相位失配。

8. 发明申请

US20100309827A1 METHOD AND APPARATUS FOR PROCESSING SIGNALS AT TIME DIVISION DUPLEX TRANSCEIVER 有权
标题翻译：在时分双工收信机处理信号的方法和装置
公开(公告)号：US20100309827A1
公开(公告)日：2010-12-09
申请号：US12860038
申请日：2010-08-20
申请人： Pil-Soon CHOI
发明人： Pil-Soon CHOI
IPC分类号： H04J3/00 , H04L5/14
CPC分类号： H04B1/56 , H04B1/403
摘要： Provided is a time division duplex (TDD) transceiver. A receiver chain processing received signals and a transmitter chain processing signals to be transmitted share an electronic component used in a circuit, such as an amplifier, a mixer, a filter, etc., so that the size of a semiconductor die needed to manufacture a radio frequency (RF) chip can be reduced.
摘要翻译：提供了时分双工（TDD）收发器。接收机链处理接收信号和要发送的发射机链处理信号共享用于诸如放大器，混频器，滤波器等的电路中使用的电子部件，使得制造半导体芯片的尺寸射频（RF）芯片可以减少。

9. 发明授权

US07813424B2 Method and apparatus for compensating for mismatch occurring in radio frequency quadrature transceiver using direct-conversion scheme 有权
标题翻译：用于使用直接转换方案来补偿在射频正交收发器中出现的失配的方法和装置
公开(公告)号：US07813424B2
公开(公告)日：2010-10-12
申请号：US11790118
申请日：2007-04-24
申请人： Pil-soon Choi
发明人： Pil-soon Choi
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H03D3/009 , H04L27/2089 , H04L27/364 , H04L27/3809 , H04L27/3863
摘要： A method and apparatus for compensating for a mismatch in a radio frequency (RF) quadrature transceiver using a direct-conversion scheme is provided. The method includes setting an amplification gain for a baseband quadrature signal to be larger than an amplification gain for a baseband in-phase signal in a reception module; receiving only a baseband in-phase signal in a transmission module; and compensating for a phase mismatch on a basis of a signal output from a quadrature output port. The apparatus includes a phase mismatch compensator which sets an amplification gain for a baseband quadrature signal to be larger than an amplification gain for a baseband in-phase signal in a reception module, inputs only a baseband in-phase signal to a transmission module, and compensates for a phase mismatch on a basis of a signal output from a quadrature output port.
摘要翻译：提供了一种使用直接转换方案来补偿射频（RF）正交收发器中的失配的方法和装置。该方法包括将基带正交信号的放大增益设置为大于接收模块中的基带同相信号的放大增益; 在传输模块中仅接收基带同相信号; 并且基于从正交输出端口输出的信号来补偿相位失配。该装置包括相位失配补偿器，其将基带正交信号的放大增益设置为大于接收模块中的基带同相信号的放大增益，仅将基带同相信号输入到发送模块，以及基于从正交输出端口输出的信号补偿相位失配。

10. 发明申请

US20080304514A1 METHOD AND APPARATUS FOR COMMUNICATING WITH A HETEROGENEOUS TERMINAL 审中-公开
标题翻译：用于与异源终端通信的方法和装置
公开(公告)号：US20080304514A1
公开(公告)日：2008-12-11
申请号：US12043243
申请日：2008-03-06
申请人： Pil-Soon CHOI , Chang-Yeul KWON , Ji-Sung OH
发明人： Pil-Soon CHOI , Chang-Yeul KWON , Ji-Sung OH
IPC分类号： H04L29/08
CPC分类号： H04L5/1453
摘要： Provided are a method and apparatus for communicating with a heterogeneous terminal, more particularly, a method and apparatus for communicating with a heterogeneous terminal in which the communication between terminals using different modulation methods can be initialized by transmitting throughout a network a preamble with a waveform that is commonly used in the network. The apparatus includes a preamble-generation unit which generates a preamble having a plurality of sequences corresponding to a combination of a modulation method and a waveform that are to be applied to a packet; and a communication unit which attaches the preamble to the packet and then transmits the packet.
摘要翻译：提供了一种用于与异构终端进行通信的方法和装置，更具体地，涉及用于与异构终端进行通信的方法和装置，其中使用不同调制方式的终端之间的通信可以通过在网络上传输具有波形的波形来初始化，在网络中常用。该装置包括：前导码生成单元，其生成具有对应于要应用于分组的调制方式和波形的组合的多个序列的前导码; 以及将前同步码附加到分组然后发送分组的通信单元。

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