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61. 发明授权

US08611266B2 Apparatus and method of power saving for stations in wireless communication system 有权
标题翻译：无线通信系统中电台节电装置及方法
公开(公告)号：US08611266B2
公开(公告)日：2013-12-17
申请号：US12969708
申请日：2010-12-16
申请人： Seungkwon Cho , Jaewoo Park , Sok-Kyu Lee
发明人： Seungkwon Cho , Jaewoo Park , Sok-Kyu Lee
IPC分类号： G08C17/00
CPC分类号： H04W76/28 , H04W52/0251 , Y02D70/142 , Y02D70/144 , Y02D70/23
摘要： A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system includes a user interface unit configured to include a voice CODEC using in the VoIP service, a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call, and a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller.
摘要翻译：在无线通信系统中，提供无线通信协议（VoIP）服务的无线通信终端的电力控制装置包括：用户接口单元，被配置为包括在VoIP服务中使用的语音CODEC;被配置为连接到用户的控制器接口单元，包括预定的应用程序，包括VoIP应用程序，以及用于建立VoIP呼叫和取消VoIP呼叫的控制信令;以及媒体访问控制（MAC）处理器，被配置为执行介质访问控制功能，并且包括定时器单元用于通过从控制器接收VoIP呼叫建立信号和VoIP呼叫取消信号来开始非计划服务时段（U-SP）。

62. 发明授权

US08472386B2 Packet transmission/reception method and apparatus in wireless communication system 有权
公开(公告)号：US08472386B2
公开(公告)日：2013-06-25
申请号：US13046458
申请日：2011-03-11
申请人： Yun-Joo Kim , Sok-Kyu Lee , Hyun-Kyu Chung
发明人： Yun-Joo Kim , Sok-Kyu Lee , Hyun-Kyu Chung
IPC分类号： H04W4/00
CPC分类号： H04H20/42 , H04L12/189 , H04L69/324 , H04W28/06
摘要： A method for simultaneously transmitting packets to one or more users in a wireless communication system includes: generating the packets which include length information and are to be transmitted to the one or more users; and simultaneously transmitting the generated packets to the one or more users. The length information includes information representing a unit of the length information and information representing lengths of the packets according to the unit.

63. 发明授权

US08300612B2 Medium access control method and data transmission method using the same in wireless local area network 失效
标题翻译：在无线局域网中采用相同的媒体访问控制方法和数据传输方法
公开(公告)号：US08300612B2
公开(公告)日：2012-10-30
申请号：US12129007
申请日：2008-05-29
申请人： Jee-Yon Choi , Yoo-Seung Song , Yun-Joo Kim , Hyun-Gu Park , Kwhang-Hyun Ryu , Sok-Kyu Lee
发明人： Jee-Yon Choi , Yoo-Seung Song , Yun-Joo Kim , Hyun-Gu Park , Kwhang-Hyun Ryu , Sok-Kyu Lee
IPC分类号： H04W4/00 , H04W72/00 , H04J3/24 , H04Q11/00
CPC分类号： H04W72/1278 , H04W28/20
摘要： Provided are a MAC method and a method for transmitting data using the same in a WLAN. The MAC method includes: transmitting a bandwidth scheduling report frame for informing information on downlinks and uplinks allocated to a terminal by including the bandwidth scheduling report frame in one of the downlinks where the bandwidth scheduling report frame includes a plurality of downlinks, a plurality of uplinks, and a plurality of short uplinks and the number of the plurality of downlinks is equal to the number of the plurality of uplinks; receiving a bandwidth request frame for requesting bandwidth allocation through one of the uplinks; and allocating a bandwidth to each of the terminals by an unit of the downlink and the uplink.
摘要翻译：提供了一种MAC方法和一种用于在WLAN中发送数据的方法。 MAC方法包括：通过在带宽调度报告帧包括多个下行链路的下行链路之一中包括带宽调度报告帧来发送用于通知分配给终端的下行链路和上行链路的信息的带宽调度报告帧，多个上行链路和多个短上行链路，并且多个下行链路的数量等于多个上行链路的数量; 接收用于通过所述上行链路之一请求带宽分配的带宽请求帧; 并且通过下行链路和上行链路的单元向每个终端分配带宽。

64. 发明申请

US20120263160A1 METHOD FOR SENDING/ RECEIVING DATA IN A WIRELESS PACKET COMMUNICATION SYSTEM IN WHICH THERE IS SIMULTANEOUS COMMUNICATION WITH VARIOUS TERMINALS 有权
标题翻译：用于在具有各种端子的同时通信的无线分组通信系统中发送/接收数据的方法
公开(公告)号：US20120263160A1
公开(公告)日：2012-10-18
申请号：US13525220
申请日：2012-06-15
申请人： Jeeyon CHOI , Sok-Kyu Lee
发明人： Jeeyon CHOI , Sok-Kyu Lee
IPC分类号： H04W84/12
CPC分类号： H04L12/18 , H04B5/00 , H04B7/0452 , H04L1/0083 , H04L1/1887 , H04L5/0055 , H04L2001/0093 , H04W84/12 , H04W88/08
摘要： A method and apparatus for transmitting a frame to at least one receiver in a wireless communication system is provided. The apparatus determines at least one data length in accordance with each receiver based on a number of symbol for the frame to be transmitted, determines a maximum data length among the at least one data length, and determines a length of the frame in time domain based on the maximum data length. The apparatus generates the frame in accordance with the length of the frame, the frame including a first signal field and at least one second signal field. The first signal field indicates the length of the frame and each second signal field indicates each data length.
摘要翻译：提供了一种用于在无线通信系统中向至少一个接收机发送帧的方法和装置。该装置根据每个接收机基于要发送的帧的符号的数量来确定至少一个数据长度，确定至少一个数据长度之间的最大数据长度，并确定基于时域的帧的长度在最大数据长度上。该装置根据帧的长度生成帧，该帧包括第一信号字段和至少一个第二信号字段。第一信号字段指示帧的长度，每个第二信号字段指示每个数据长度。

65. 发明申请

US20120213177A1 POWER SAVING METHOD IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统节能方法
公开(公告)号：US20120213177A1
公开(公告)日：2012-08-23
申请号：US13458940
申请日：2012-04-27
申请人： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung , Dae-Sik Kim
发明人： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung , Dae-Sik Kim
IPC分类号： H04W72/04 , H04W84/02
CPC分类号： H04W52/262 , H04B7/0626 , H04L1/1671 , H04W52/0216 , H04W52/0219 , H04W52/0229 , Y02D70/00 , Y02D70/142 , Y02D70/26
摘要： A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.
摘要翻译：提供了一种在无线局域网中访问信道的方法和装置。目的站接收请求发送（RTS）帧，以便通过第一带宽从源站分配网络分配向量，并响应于RTS帧向源站发送第二带宽的清除发送（CTS）帧。当第一参数具有预定值时动态地确定第二带宽。

66. 发明申请

US20110286378A1 METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PACKET IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于在无线通信系统中发送/接收分组的方法和装置
公开(公告)号：US20110286378A1
公开(公告)日：2011-11-24
申请号：US13047477
申请日：2011-03-14
申请人： Yun-Joo KIM , Sok-Kyu Lee
发明人： Yun-Joo KIM , Sok-Kyu Lee
IPC分类号： H04W4/00 , H04H20/71
CPC分类号： H04W72/005 , H04L45/74 , H04L69/22 , H04W4/06 , H04W28/06 , H04W72/0406
摘要： A method for simultaneously transmitting packets having different lengths to two or more users in a wireless communication system includes: generating the packets to transmit to the respective users, the packets containing information on the maximum transmission length of the packets having different lengths; and simultaneously transmitting the generated packets to the respective users. The maximum transmission length is represented by the number of symbols, and each of the packets sequentially contains control information required for transmitting the packet, data, a tail field, and a PHY pad field, and is generated by inserting a MAC pad between the control information and the data such that the tail field and the PHY pad field are positioned at the last byte of the last symbol of the maximum transmission length.
摘要翻译：一种用于在无线通信系统中同时向两个或多个用户发送具有不同长度的分组的方法包括：生成要发送给各个用户的分组，所述分组包含关于具有不同长度的分组的最大传输长度的信息; 同时将生成的分组发送给各个用户。最大传输长度由符号数表示，并且每个分组顺序地包含用于发送分组所需的控制信息，数据，尾部字段和PHY填充字段，并且通过在控制器之间插入MAC垫来生成信息和数据，使得尾部场和PHY垫场位于最大传输长度的最后一个符号的最后一个字节。

67. 发明申请

US20110149855A1 APPARATUS AND METHOD OF POWER SAVING FOR STATIONS IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中的站点节能设备及方法
公开(公告)号：US20110149855A1
公开(公告)日：2011-06-23
申请号：US12969708
申请日：2010-12-16
申请人： Seungkwon CHO , Jaewoo Park , Sok-Kyu Lee
发明人： Seungkwon CHO , Jaewoo Park , Sok-Kyu Lee
IPC分类号： H04W40/00
CPC分类号： H04W76/28 , H04W52/0251 , Y02D70/142 , Y02D70/144 , Y02D70/23
摘要： A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system includes a user interface unit configured to include a voice CODEC using in the VoIP service, a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call, and a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller.
摘要翻译：在无线通信系统中，提供无线通信协议（VoIP）服务的无线通信终端的电力控制装置包括：用户接口单元，被配置为包括在VoIP服务中使用的语音CODEC;被配置为连接到用户的控制器接口单元，包括预定的应用程序，包括VoIP应用程序，以及用于建立VoIP呼叫和取消VoIP呼叫的控制信令;以及媒体访问控制（MAC）处理器，被配置为执行介质访问控制功能，并且包括定时器单元用于通过从控制器接收VoIP呼叫建立信号和VoIP呼叫取消信号来开始非计划服务时段（U-SP）。

68. 发明申请

US20110142177A1 APPARATUS AND METHOD FOR COMPENSATING FOR DELAY MISMATCH BETWEEN AMPLITUDE COMPONENT SIGNAL AND PHASE COMPONENT SIGNAL 有权
标题翻译：用于补偿AMPLITUDE组件信号和相位分量信号之间的延迟误差的装置和方法
公开(公告)号：US20110142177A1
公开(公告)日：2011-06-16
申请号：US12961745
申请日：2010-12-07
申请人： Hun-Sik Kang , Sok-Kyu Lee
发明人： Hun-Sik Kang , Sok-Kyu Lee
IPC分类号： H04L27/06
CPC分类号： H04L27/361
摘要： Provided are an apparatus and method for compensating for a delay mismatch between an amplitude component signal and a phase component signal. The apparatus includes an amplitude path delay obtainer configured to obtain amplitude-delay information on a delay occurring in a propagation path of an amplitude component signal, a phase path delay obtainer configured to obtain phase-delay information on a delay occurring in a propagation path of a phase component signal, a delay controller configured to calculate and output a difference between the obtained amplitude path delay and the obtained phase path delay, and a variable delayer configured to compensate for a delay by changing a delay value on the basis of the delay difference output from the delay controller. Using an asynchronous method, in which a signal obtained before and after a delay is used as the clock signal of a memory device and the clock signal of a register to find the delay, it is possible to reduce the complexity of the constitution and increase power efficiency.
摘要翻译：提供了一种用于补偿振幅分量信号和相位分量信号之间的延迟失配的装置和方法。所述装置包括：幅度路径延迟获取器，被配置为获得关于在振幅分量信号的传播路径中出现的延迟的幅度延迟信息;相位路径延迟获取器，被配置为获得关于在传播路径中发生的延迟的相位延迟信息相位分量信号，延迟控制器，被配置为计算并输出所获得的幅度路径延迟与所获得的相位路径延迟之间的差;以及可变延迟器，被配置为通过基于延迟差改变延迟值来补偿延迟从延迟控制器输出。使用异步方法，其中将延迟之前和之后获得的信号用作存储器件的时钟信号和寄存器的时钟信号以找到延迟，可以降低结构的复杂性并增加功率效率。

69. 发明申请

US20110141955A1 METHOD AND APPARATUS FOR TRANSMITTING PACKET IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于在无线通信系统中发送分组的方法和装置
公开(公告)号：US20110141955A1
公开(公告)日：2011-06-16
申请号：US12969551
申请日：2010-12-15
申请人： Hyun-Gu PARK , Sok-Kyu Lee
发明人： Hyun-Gu PARK , Sok-Kyu Lee
IPC分类号： H04L12/56 , H04B7/00
CPC分类号： H04W74/0875 , H04W72/1242
摘要： Provided is a method and apparatus for transmitting a packet in a wireless communication system. A method for transmitting a packet by a packet transmission apparatus in a wireless communication system includes determining whether the packet is a response packet, and transmitting the packet with a higher channel access opportunity than another packet transmission apparatus of the wireless communication system, if the packet is a response packet.Accordingly, it is possible to solve the problem that the total system performance degrades because a packet transmission apparatus fails to fully use its own transmission time by failing to rapidly receive a response packet even when packets remain to be transmitted in a wireless communication system using a contention-based channel access scheme.
摘要翻译：提供了一种用于在无线通信系统中发送分组的方法和装置。一种用于在无线通信系统中由分组发送装置发送分组的方法包括：确定该分组是否是响应分组，并且如果分组的分组具有比另一无线通信系统的分组发送装置更高的信道接入机会，则发送分组是一个响应包。因此，可以解决总体系统性能下降的问题，因为即使在使用无线通信系统的无线通信系统中仍然要发送分组的情况下，由于分组发送装置未能充分利用自身的发送时间而无法快速接收到应答分组，基于争用的频道接入方案。

70. 发明授权

US07916797B2 Residual frequency, phase, timing offset and signal amplitude variation tracking apparatus and methods for OFDM systems 有权
标题翻译：用于OFDM系统的残余频率，相位，定时偏移和信号幅度变化跟踪装置和方法
公开(公告)号：US07916797B2
公开(公告)日：2011-03-29
申请号：US11286996
申请日：2005-11-22
申请人： Heejung Yu , Taehyun Jeon , Myung-Soon Kim , Eun-Young Choi , Sok-Kyu Lee , Deuk-Su Lyu
发明人： Heejung Yu , Taehyun Jeon , Myung-Soon Kim , Eun-Young Choi , Sok-Kyu Lee , Deuk-Su Lyu
IPC分类号： H04K1/10 , H04L27/00 , H04J11/00
CPC分类号： H04L27/266 , H04L27/2659 , H04L27/2662 , H04L27/2675 , H04L27/2682 , H04L27/2685 , H04L27/2695
摘要： An error tracking apparatus and method for tracking a residual frequency error, a phase error, a timing error, and a signal amplitude variation to enhance a phase error tracking performance and a tracking speed in an orthogonal frequency division multiplexing (OFDM) system is provided. The error tracking apparatus and method include: a frequency error corrector for correcting a frequency at a time domain by adding a tracking carrier error estimating value to an initial carrier frequency error estimating value; a signal amplitude tracking corrector for controlling a signal amplitude by multiplying an input signal converted by a fast Fourier transform (FFT) by an output value corresponding to a calculated power of a receive pilot signal; a channel corrector for outputting a channel correcting signal by multiplying the receive pilot signal by a complex conjugate of a frequency channel response of the receive pilot signal; a carrier frequency error estimator for estimating a carrier frequency error parameter using the channel-corrected pilot and providing the tracking carrier frequency error estimating value; a time offset estimator for estimating a time offset parameter using the channel-corrected pilot; and a carrier phase error estimator for estimating a carrier phase error parameter using the channel-corrected pilot.
摘要翻译：提供了一种用于跟踪残余频率误差，相位误差，定时误差和信号幅度变化的误差跟踪装置和方法，以增强正交频分复用（OFDM）系统中的相位误差跟踪性能和跟踪速度。误差跟踪装置和方法包括：频率误差校正器，用于通过将初始载波频率误差估计值加上跟踪载波误差估计值来校正时域的频率; 信号幅度跟踪校正器，用于通过将通过快速傅里叶变换（FFT）转换的输入信号乘以与所计算的接收导频信号的功率相对应的输出值来控制信号幅度; 信道校正器，用于通过将接收导频信号乘以接收导频信号的频率信道响应的复共轭来输出信道校正信号; 载波频率误差估计器，用于使用所述信道校正的导频来估计载波频率误差参数，并提供所述跟踪载波频率误差估计值; 时间偏移估计器，用于使用所述通道校正的导频来估计时间偏移参数; 以及载波相位误差估计器，用于使用信道校正的导频来估计载波相位误差参数。

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