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1. 发明申请

US20060193392A1 Apparatus for and method of compensation for frequency offset and channel variation in MIMO-OFDM receiver 审中-公开
标题翻译： MIMO-OFDM接收机的频偏和信道变化补偿装置及补偿方法
公开(公告)号：US20060193392A1
公开(公告)日：2006-08-31
申请号：US11330094
申请日：2006-01-12
申请人： Jae-hwa Kim , Tae-kon Kim , Jae-ho Chung
发明人： Jae-hwa Kim , Tae-kon Kim , Jae-ho Chung
IPC分类号： H04K1/10 , H04L27/06 , H03D1/04
CPC分类号： H04L27/266 , H04L1/0631 , H04L1/0656 , H04L25/0206 , H04L27/261 , H04L27/2659 , H04L27/2675 , H04L27/2695
摘要： An apparatus for compensating for a frequency offset and a channel variation, includes: a frequency offset compensation unit estimating the frequency offset of receptions signals received via reception ends based on a final metric value of the reception signals, and a compensator compensating for the frequency offset of the receptions signals based on the estimated frequency offset; Fast Fourier Transformers (FFTs) converting reception signals having the compensated frequency offset into frequency domain reception signals; and a frequency offset and channel variation compensation unit estimating channel coefficients of signals output from the FFTs by sub carriers, compensating for a residual frequency offset and a channel variation of the reception signals from the FFTs based on pilot signals and the estimated channel coefficients, and detecting signals transmitted from transmission ends based on the reception signals having the compensated residual frequency offset and channel variation and the estimated channel coefficients.
摘要翻译：一种用于补偿频偏和信道变化的装置，包括：频偏补偿单元，基于接收信号的最终度量值，估计接收端接收到的接收信号的频率偏移，以及补偿频偏基于估计的频率偏移的接收信号; 将具有经补偿的频偏的接收信号转换成频域接收信号的快速傅里叶变换器（FFT）以及频率偏移和信道变化补偿单元，基于子载波估计从FFT输出的信号的信道系数，基于导频信号和所估计的信道系数补偿来自FFT的接收信号的残余频率偏移和信道变化，以及基于具有经补偿的剩余频率偏移和信道变化的接收信号和所估计的信道系数来检测从发送结束发送的信号。

2. 发明申请

US20050111419A1 Method of performing communication over wireless network including multiple input/multiple output stations 审中-公开
标题翻译：通过无线网络进行通信的方法，包括多个输入/多个输出站
公开(公告)号：US20050111419A1
公开(公告)日：2005-05-26
申请号：US10970491
申请日：2004-10-22
申请人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
发明人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
IPC分类号： H04L1/00 , H04L1/06 , H04Q7/24
CPC分类号： H04L1/0002 , H04L1/0025 , H04L1/0618
摘要： A method for increasing transmission efficiency between stations by representing and using a new media access control (MAC) frame format for a management frame of the 802.11a standard in wireless network communication. The method including securing transmission media through a predetermined channel securing procedure at one or more Multiple Input/Multiple Output (MIMO) transmission stations, and constructing information associated with a basic service set (BSS) and a MIMO Supported Rate and carrying the information associated with the BSS and MIMO Supported Rate on the management frame at the MIMO transmission station and transmitting the carried information to at least one reception-sided station by means of the transmission media. In an IBSS network including the stations having different transmission capability, the MIMO Supported Rate information element consisting of the data transfer rate set which the MIMO stations can support is carried and transmitted on a Beacon frame, so that selection of the maximum or efficient transfer rate is guaranteed in the communication between the high-speed stations.
摘要翻译：一种用于通过表示和使用无线网络通信中的802.11a标准的管理帧的新的媒体访问控制（MAC）帧格式来提高站之间的传输效率的方法。该方法包括通过一个或多个多输入（MIMO）传输站处的预定信道保护过程来保护传输介质，以及构建与基本服务集（BSS）和MIMO支持速率相关联的信息，并携带与在MIMO传输站的管理帧上的BSS和MIMO支持速率，并且通过传输介质将携带的信息发送到至少一个接收侧站。在包括具有不同传输能力的站的IBSS网络中，由MIMO站可以支持的数据传输速率集合组成的MIMO支持速率信息单元在信标帧上被传送和发送，从而选择最大或有效的传输速率在高速站之间的通信中得到保证。

3. 发明授权

US07907627B2 Wireless communication method following DCF rule 有权
标题翻译： DCF规则后的无线通信方法
公开(公告)号：US07907627B2
公开(公告)日：2011-03-15
申请号：US11028067
申请日：2005-01-04
申请人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
发明人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
IPC分类号： H04L12/413
CPC分类号： H04W74/085 , H04W84/12
摘要： Provided are a method and apparatus which can reduce the possibility of collision with other frames when transmitting a broadcast/multicast frame in a wireless local area network (LAN) following a Distributed Coordination Function (DCF) rule, thereby ensuring reliable transmission. The wireless communication method for sending or receiving a predetermined frame through contention between an access point and one or more stations according to DCF is characterized in that the access point uses the shortest of interframe space (IFS) intervals for access to a wireless medium. Therefore, when wireless LAN STAs operate in a DCF mode, the possibility of collision during broadcast or multicast frame transmission can be reduced while adopting conventional CSMA/CA mechanism, thereby improving reliability in successful frame transmission.
摘要翻译：提供了一种在按照分布式协调功能（DCF）规则在无线局域网（LAN）中发送广播/多播帧时可以减少与其他帧发生冲突的可能性的方法和装置，从而确保可靠的传输。通过根据DCF的接入点和一个或多个站之间的竞争来发送或接收预定帧的无线通信方法的特征在于，接入点使用最短的帧间间隔（IFS）间隔来访问无线介质。因此，当无线LAN STA以DCF模式工作时，在采用传统的CSMA / CA机制的同时可以减少在广播或组播帧传输过程中发生冲突的可能性，从而提高成功帧传输的可靠性。

4. 发明申请

US20050157747A1 Wireless communication method following DCF rule 有权
标题翻译： DCF规则后的无线通信方法
公开(公告)号：US20050157747A1
公开(公告)日：2005-07-21
申请号：US11028067
申请日：2005-01-04
申请人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
发明人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
IPC分类号： H04J3/16 , H04J3/22 , H04L12/28 , H04L12/413 , H04L12/56 , H04W74/08 , H04W84/12 , H04Q7/00
CPC分类号： H04W74/085 , H04W84/12
摘要： Provided are a method and apparatus which can reduce the possibility of collision with other frames when transmitting a broadcast/multicast frame in a wireless local area network (LAN) following a Distributed Coordination Function (DCF) rule, thereby ensuring reliable transmission. The wireless communication method for sending or receiving a predetermined frame through contention between an access point and one or more stations according to DCF is characterized in that the access point uses the shortest of interframe space (IFS) intervals for access to a wireless medium. Therefore, when wireless LAN STAs operate in a DCF mode, the possibility of collision during broadcast or multicast frame transmission can be reduced while adopting conventional CSMA/CA mechanism, thereby improving reliability in successful frame transmission.
摘要翻译：提供了一种在按照分布式协调功能（DCF）规则在无线局域网（LAN）中发送广播/多播帧时可以减少与其他帧发生冲突的可能性的方法和装置，从而确保可靠的传输。通过根据DCF的接入点和一个或多个站之间的竞争来发送或接收预定帧的无线通信方法的特征在于，接入点使用最短的帧间间隔（IFS）间隔来访问无线介质。因此，当无线LAN STA以DCF模式工作时，在采用传统的CSMA / CA机制的同时可以减少在广播或组播帧传输过程中发生冲突的可能性，从而提高成功帧传输的可靠性。

5. 发明授权

US07817614B2 Method and apparatus for setting, transmitting and receiving data for virtual carrier sensing in wireless network communication 有权
标题翻译：在无线网络通信中设置，发送和接收虚拟载波侦听数据的方法和装置
公开(公告)号：US07817614B2
公开(公告)日：2010-10-19
申请号：US11042115
申请日：2005-01-26
申请人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
发明人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
IPC分类号： H04J3/16 , H04B7/212
CPC分类号： H04L27/0012 , H04W74/0808
摘要： Methods and apparatuses for setting, transmitting, and receiving virtual carrier sensing information in wireless network communications are provided. A receiving station in a wireless communications network receives a frame transmitted according to various modulation schemes and extracts information concerning virtual carrier sensing from a portion of the frame modulated using a basic modulation scheme, so that virtual carrier sensing is achieved using the extracted virtual carrier sensing information.
摘要翻译：提供了在无线网络通信中设置，发送和接收虚拟载波感知信息的方法和装置。无线通信网络中的接收站接收根据各种调制方案发送的帧，并从使用基本调制方案调制的帧的一部分中提取关于虚拟载波侦听的信息，从而使用提取的虚拟载波感测信息。

6. 发明申请

US20050160181A1 Method of communications between MIMO stations 失效
标题翻译： MIMO站之间的通信方法
公开(公告)号：US20050160181A1
公开(公告)日：2005-07-21
申请号：US11032349
申请日：2005-01-11
申请人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
发明人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
IPC分类号： H04B7/02 , G06F15/173 , H04B7/04 , H04B17/00 , H04L1/00 , H04L12/28 , H04L12/56
CPC分类号： H04W28/22 , H04B7/0413 , H04B17/318 , H04L1/0002 , H04L1/0025 , H04W48/08 , H04W84/12
摘要： Provided is a link adaptation method for a multi input multi output (MIMO) system having a multi-antenna structure and a communicating method of MIMO stations in a basic service set (BSS), which constitutes a wireless communication network. The communicating method includes receiving the number of MIMO antennas and transmission rates supported by the respective MIMO antennas from a predetermined MIMO station, storing one or more channel estimation indicators obtained while receiving various frames from the predetermined MIMO station for each MIMO antenna and for each transmission rate supported by the MIMO antenna, determining threshold levels of the channel estimation indicators for each MIMO antenna, comparing threshold levels of channel estimation indicators for each MIMO antenna with an average of channel estimation indicators for each MIMO antenna, and determining a transmission rate based on comparison results to then transmit data to the predetermined MIMO station at the determined transmission rate.
摘要翻译：提供了一种用于多输入多输出（MIMO）系统的链路自适应方法，该多输入多输出（MIMO）系统具有构成无线通信网络的基本服务集（BSS）中的MIMO天线结构和通信方法。所述通信方法包括从预定的MIMO站接收MIMO天线的数量和由各个MIMO天线支持的传输速率，存储当从每个MIMO天线的预定MIMO站接收各种帧时获得的一个或多个信道估计指示符，并且对于每个传输 MIMO天线支持的速率，确定每个MIMO天线的信道估计指示符的阈值水平，将每个MIMO天线的信道估计指示符的阈值级别与每个MIMO天线的信道估计指示符的平均值进行比较，以及基于比较结果然后以确定的传输速率将数据传输到预定的MIMO站。

7. 发明申请

US20050135307A1 Data transmitting method for wireless network using access point 审中-公开
标题翻译：无线网络使用接入点的数据发送方法
公开(公告)号：US20050135307A1
公开(公告)日：2005-06-23
申请号：US11012160
申请日：2004-12-16
申请人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
发明人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
IPC分类号： H04B7/24 , H04B7/216 , H04L12/28 , H04W24/00 , H04W72/12 , H04W74/04 , H04Q7/00
CPC分类号： H04W72/1231
摘要： Disclosed is a method for transmitting data in a wireless network employing an access point. Each transmission opportunity for transmitting data between the access point and each station is set by using channel state information and traffic state information in relation to stations existing in the same communication area with the access point in a wireless network employing the access point, so that overheads can be reduced and a data processing amount can be improved.
摘要翻译：公开了一种在采用接入点的无线网络中发送数据的方法。通过使用与使用接入点的无线网络中的与接入点相同的通信区域中的站的信道状态信息和业务状态信息来设置用于在接入点和每个站之间发送数据的每个传输机会，从而开销并且可以提高数据处理量。

8. 发明授权

US07489652B2 Method of communications between MIMO stations 失效
标题翻译： MIMO站之间的通信方法
公开(公告)号：US07489652B2
公开(公告)日：2009-02-10
申请号：US11032349
申请日：2005-01-11
申请人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
发明人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
IPC分类号： H04Q7/00
CPC分类号： H04W28/22 , H04B7/0413 , H04B17/318 , H04L1/0002 , H04L1/0025 , H04W48/08 , H04W84/12
摘要： A link adaption method for multi input multi output (MIMO) system having a multi-antenna structure and a communicating method of MIMO stations in a basic service set (BSS), which constitutes a wireless communication network. The communicating method includes receiving from a predetermined MIMO station, the number of MIMO antennas and transmission rates supported by the respective MIMO stations. It further includes, storing one or more channel estimations indicators obtained while receiving various framed form the predetermined MIMO station for each MIMO antenna and for each transmission rate supported by the MIMO antenna, determining the threshold levels of the channel estimation for each MIMO antenna, and comparing the threshold levels with an average of channels estimation indicators for each MIMO antenna. The transmission rate is determined based on the comparison result and the data is then transmitted to the predetermined MIMO station ad the determined transmission rate.
摘要翻译：一种用于多输入多输出（MIMO）系统的链路自适应方法，其具有构成无线通信网络的基本服务集（BSS）中的MIMO天线结构和通信方法。通信方法包括从预定的MIMO站接收MIMO天线的数量和由各个MIMO站支持的传输速率。其还包括：存储一个或多个信道估计指示，所述信道估计指示符在接收各种成帧格式的每个MIMO天线的预定MIMO站和MIMO天线支持的每个传输速率时获得，确定每个MIMO天线的信道估计的阈值电平，以及将阈值水平与每个MIMO天线的信道估计指标的平均值进行比较。基于比较结果确定传输速率，然后将数据发送到所确定的传输速率的预定MIMO站。

9. 发明申请

US20050207377A1 Wireless communication method 审中-公开
标题翻译：无线通信方式
公开(公告)号：US20050207377A1
公开(公告)日：2005-09-22
申请号：US11052882
申请日：2005-02-09
申请人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
发明人： Chang-yeul Kwon , Chil-youl Yang , Tae-kon Kim
IPC分类号： H04B7/02 , H04L12/28 , H04L12/413 , H04L29/02 , H04W74/08 , H04Q7/24
CPC分类号： H04W74/08 , H04L12/413 , H04W74/006
摘要： A wireless communication method used in a wireless infrastructure network including multi input multi output (MIMO) stations. The wireless communication method includes generating a management frame that comprises information on a MIMO contention period during which MIMO stations contend with each other for a channel, and transmitting the management frame. The wireless communication method prevents collisions of frames transmitted from the MIMO stations and from the SISO stations.
摘要翻译：一种在包括多输入多输出（MIMO）站的无线基础设施网络中使用的无线通信方法。无线通信方法包括生成管理帧，该管理帧包括关于MIMO竞争时段的信息，MIMO竞争时段期间MIMO站相互竞争用于信道，并且发送管理帧。无线通信方法防止从MIMO站和SISO站发送的帧的冲突。

10. 发明申请

US20050163155A1 Method for wireless local area network communication for adaptive piggyback decision 审中-公开
标题翻译：用于无线局域网通信的适应性搭载决策方法
公开(公告)号：US20050163155A1
公开(公告)日：2005-07-28
申请号：US11023169
申请日：2004-12-28
申请人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
发明人： Chil-youl Yang , Chang-yeul Kwon , Tae-kon Kim
IPC分类号： H04L29/08 , H04H20/00 , H04J3/16 , H04J3/22 , H04J3/24 , H04L1/00 , H04L1/16 , H04W28/04 , H04W28/06 , H04Q7/00 , H04H1/00
CPC分类号： H04W28/06 , H04L1/0006 , H04L1/0015 , H04L1/1671
摘要： A wireless local area network (LAN) communication method that includes adaptively determining whether to apply a piggyback according to a communication environment, and transmitting a frame containing two or more kinds of information according to the result of the determination.
摘要翻译：一种无线局域网（LAN）通信方法，包括根据通信环境自适应地确定是否应用搭载，以及根据所述确定的结果发送包含两种或多种信息的帧。

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