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1. 发明授权

US08045514B2 Transmitting frames in wireless local area network (WLAN) 失效
标题翻译：无线局域网（WLAN）中的发射帧
公开(公告)号：US08045514B2
公开(公告)日：2011-10-25
申请号：US11474478
申请日：2006-06-26
申请人： Hak-Hoon Song , Min-Cheul Cha , Bo-Seung Hwang , Seong-Jae Min , Myeon-Kee Youn , Joo-Yong Park
发明人： Hak-Hoon Song , Min-Cheul Cha , Bo-Seung Hwang , Seong-Jae Min , Myeon-Kee Youn , Joo-Yong Park
IPC分类号： H04B7/04 , H04B7/204 , H04W76/02
CPC分类号： H04W74/0808 , H04W24/00 , H04W48/08 , H04W84/12
摘要： A method and apparatus for transmitting frames in a Wireless Local Area Network (WLAN), each station in the WLAN determines whether there is another station in a hidden state. The station transmits a frame to an Access Point (AP) without performing an Request To Send/Clear To Send (RTS/CTS) mechanism when there is another station in a hidden state, thereby improving use efficiency of the wireless network and minimizing frame transmission delay.
摘要翻译：一种用于在无线局域网（WLAN）中发送帧的方法和装置，WLAN中的每个站确定是否存在处于隐藏状态的另一站。当存在处于隐藏状态的另一台站时，该站向接入点（AP）发送帧而不执行请求发送/清除发送（RTS / CTS）机制，从而提高无线网络的使用效率并最小化帧传输延迟。

2. 发明授权

US07613475B2 System of wireless local area network based on transmit power control and method for controlling transmit power 有权
标题翻译：基于发射功率控制的无线局域网系统和控制发射功率的方法
公开(公告)号：US07613475B2
公开(公告)日：2009-11-03
申请号：US11010321
申请日：2004-12-14
申请人： Hak-Hoon Song , Nak-Koo Kim
发明人： Hak-Hoon Song , Nak-Koo Kim
IPC分类号： H04B7/005
CPC分类号： H04W52/32 , H04W52/325
摘要： A system of a wireless local area network (LAN) based on transmit power control comprises: an access point (AP) for broadcasting a beacon frame to an area that is outside a service coverage of a first transmit power by using a second transmit power higher than the first transmit power already set when it reaches a set period, and for increasing the first transmit power if there is a request for increase of the first transmit power based on the beacon frame broadcast by the second transmit power; and a station which requests an increase in the first transmit power on the basis of the received beacon frame so as to enable the station to have an association with the AP. The increase is requested when the station receives the beacon frame broadcast from the AP with the second transmit power when the station is outside the service coverage of the first transmit power. The AP periodically transmits a strong beacon frame having local maximum transmit power (LMTP), and then provides a station existing outside the transmit power coverage of a current AP with basic service set (BSS) information. In this way, a newly approaching station can be provided with a basis for associating and communicating with the BSS with ease.
摘要翻译：基于发射功率控制的无线局域网（LAN）的系统包括：接入点（AP），用于通过使用更高的第二发射功率将信标帧广播到第一发射功率的服务范围之外的区域比第一发射功率在其达到设定周期时已经设定，并且如果基于由第二发射功率广播的信标帧有请求增加第一发射功率，则增加第一发射功率; 以及基于接收到的信标帧请求增加第一发射功率的台站，以使该站能够与AP建立关联。当站处于第一发射功率的业务覆盖之外时，当站接收到具有第二发射功率的AP的广播信标帧时，请求增加。 AP周期性地发送具有本地最大发射功率（LMTP）的强信标帧，然后提供现有AP的发射功率覆盖范围外的基站具有基本业务集（BSS）信息。以这种方式，可以为新近的站提供与BSS的关联和通信的基础。

3. 发明申请

US20070041334A1 Transmitting frames in wireless local area network (WLAN) 失效
标题翻译：无线局域网（WLAN）中的发射帧
公开(公告)号：US20070041334A1
公开(公告)日：2007-02-22
申请号：US11474478
申请日：2006-06-26
申请人： Hak-Hoon Song , Min-Cheul Cha , Bo-Seung Hwang , Seong-Jae Min , Myeon-Kee Youn , Joo-Yong Park
发明人： Hak-Hoon Song , Min-Cheul Cha , Bo-Seung Hwang , Seong-Jae Min , Myeon-Kee Youn , Joo-Yong Park
IPC分类号： H04L12/28 , H04L12/413
CPC分类号： H04W74/0808 , H04W24/00 , H04W48/08 , H04W84/12
摘要： A method and apparatus for transmitting frames in a Wireless Local Area Network (WLAN), each station in the WLAN determines whether there is another station in a hidden state. The station transmits a frame to an Access Point (AP) without performing an Request To Send/Clear To Send (RTS/CTS) mechanism when there is another station in a hidden state, thereby improving use efficiency of the wireless network and minimizing frame transmission delay.
摘要翻译：一种用于在无线局域网（WLAN）中发送帧的方法和装置，WLAN中的每个站确定是否存在处于隐藏状态的另一站。当存在处于隐藏状态的另一台站时，该站向接入点（AP）发送帧而不执行请求发送/清除发送（RTS / CTS）机制，从而提高无线网络的使用效率并最小化帧传输延迟。

4. 发明申请

US20050250528A1 System of wireless local area network based on transmit power control and method for controlling transmit power 有权
标题翻译：基于发射功率控制的无线局域网系统和控制发射功率的方法
公开(公告)号：US20050250528A1
公开(公告)日：2005-11-10
申请号：US11010321
申请日：2004-12-14
申请人： Hak-Hoon Song , Nak-Koo Kim
发明人： Hak-Hoon Song , Nak-Koo Kim
IPC分类号： H04B7/26 , H04B7/005
CPC分类号： H04W52/32 , H04W52/325
摘要： A system of a wireless local area network (LAN) based on transmit power control comprises: an access point (AP) for broadcasting a beacon frame to an area that is outside a service coverage of a first transmit power by using a second transmit power higher than the first transmit power already set when it reaches a set period, and for increasing the first transmit power if there is a request for increase of the first transmit power based on the beacon frame broadcast by the second transmit power; and a station which requests an increase in the first transmit power on the basis of the received beacon frame so as to enable the station to have an association with the AP. The increase is requested when the station receives the beacon frame broadcast from the AP with the second transmit power when the station is outside the service coverage of the first transmit power. The AP periodically transmits a strong beacon frame having local maximum transmit power (LMTP), and then provides a station existing outside the transmit power coverage of a current AP with basic service set (BSS) information. In this way, a newly approaching station can be provided with a basis for associating and communicating with the BSS with ease.
摘要翻译：基于发射功率控制的无线局域网（LAN）的系统包括：接入点（AP），用于通过使用更高的第二发射功率将信标帧广播到第一发射功率的服务范围之外的区域比第一发射功率在其达到设定周期时已经设定，并且如果基于由第二发射功率广播的信标帧有请求增加第一发射功率，则增加第一发射功率; 以及基于接收到的信标帧请求增加第一发射功率的台站，以使该站能够与AP建立关联。当站处于第一发射功率的业务覆盖之外时，当站接收到具有第二发射功率的AP的广播信标帧时，请求增加。 AP周期性地发送具有本地最大发射功率（LMTP）的强信标帧，然后提供现有AP的发射功率覆盖范围外的基站具有基本业务集（BSS）信息。以这种方式，可以为新近的站提供与BSS的关联和通信的基础。

5. 发明申请

US20060176802A1 Apparatus and method for compensating for frequency offset in wireless communication system 审中-公开
标题翻译：用于补偿无线通信系统中频偏的装置和方法
公开(公告)号：US20060176802A1
公开(公告)日：2006-08-10
申请号：US11336949
申请日：2006-01-20
申请人： Seong-Yun Ko , Myeon-Kee Youn , Joo-Yong Park , Hak-Hoon Song
发明人： Seong-Yun Ko , Myeon-Kee Youn , Joo-Yong Park , Hak-Hoon Song
IPC分类号： H04J11/00
CPC分类号： H04L27/2657 , H04L27/2665 , H04L27/2675 , H04L27/2695
摘要： Disclosed is an apparatus and method for compensating for frequency offset in a wireless communication system using an OFDM system which can compensate for phase change due to carrier frequency offset and sampling frequency offset of data carried on subcarriers. The apparatus includes an FFT window adjustment unit for receiving sampling data when a packet is received, setting a start point of a FFT window at a start point of long training symbols and adjusting a position of the FFT window according to an input window adjustment value, an FFT unit for receiving an output of the FFT window adjustment unit, transforming time-domain symbols into frequency-domain symbols and calculating FFT coefficients, a channel estimation unit for receiving the coefficients from the FFT unit, estimating a channel state and outputting a value for compensating for an estimated value, a channel compensation unit for compensating for the frequency-domain symbols using the output of the channel estimation unit and a phase error tracking and correction unit for receiving an output of the channel compensation unit, detecting a sampling frequency offset and a phase change of a carrier signal and outputting the window adjustment value to the FFT window adjustment unit.
摘要翻译：公开了一种用于补偿使用OFDM系统的无线通信系统中的频率偏移的装置和方法，所述OFDM系统可以补偿由于载波频率偏移引起的相位变化和在子载波上承载的数据的采样频率偏移。该装置包括FFT窗口调整单元，用于当接收到分组时接收采样数据，在长训练符号的起始点处设置FFT窗口的起始点，并根据输入窗口调整值调整FFT窗口的位置， FFT单元，用于接收FFT窗口调整单元的输出，将时域符号变换为频域符号并计算FFT系数;信道估计单元，用于从FFT单元接收系数，估计信道状态并输出值用于补偿估计值的信道补偿单元，用于使用信道估计单元的输出来补偿频域符号的信道补偿单元和用于接收信道补偿单元的输出的相位误差跟踪和校正单元，检测采样频率偏移以及载波信号的相位变化，并将窗口调整值输出到FFT窗口调整单元。

6. 发明授权

US08897837B2 Integral communication device and control method thereof 有权
标题翻译：一体化通信装置及其控制方法
公开(公告)号：US08897837B2
公开(公告)日：2014-11-25
申请号：US12259082
申请日：2008-10-27
申请人： Hak Hoon Song , Sang Geun Hwang , Kyeong Jun Kim , Jeng Nam Lee
发明人： Hak Hoon Song , Sang Geun Hwang , Kyeong Jun Kim , Jeng Nam Lee
IPC分类号： H04M1/00 , H04M1/02
CPC分类号： H04M1/0254
摘要： An integral communication device and method for controlling the integral communication device are provided for expanding the communication capability of a mobile terminal. An integral communication device of the present invention includes a plurality of communication modules that operate with different communication standards, a connector having terminals for electrical connection to a mobile terminal, a switch for switching the terminals of the connector between the communication modules, and a device controller for controlling the switch to establish electric links to the communication modules individually.
摘要翻译：提供用于控制集成通信设备的集成通信设备和方法，用于扩展移动终端的通信能力。本发明的集成通信装置包括以不同通信标准操作的多个通信模块，具有用于与移动终端电连接的终端的连接器，用于切换通信模块之间的连接器的终端的开关，以及设备控制器，用于控制开关以单独建立到通信模块的电连接。

7. 发明申请

US20060079183A1 Detecting interference between neighboring basic service sets (BSSs) in wireless local area network (WLAN) system 审中-公开
标题翻译：检测无线局域网（WLAN）系统中相邻基本服务集（BSS）之间的干扰
公开(公告)号：US20060079183A1
公开(公告)日：2006-04-13
申请号：US11203991
申请日：2005-08-16
申请人： Hak-Hoon Song , Sang-Kug Yi
发明人： Hak-Hoon Song , Sang-Kug Yi
IPC分类号： H04B1/00
CPC分类号： H04W16/16 , H04W16/10
摘要： Detecting interference between neighboring Basic Service Sets (BSSs) in a Wireless Local Area Network (WLAN) system conforming to an IEEE 802.11 standard in which an arbitrary Access Point (AP) wirelessly transmits and receives frames to and from a station in a relevant BSS includes: receiving the frames; calculating an other-BSSID rate for the received frames; and determining whether interference has occurred, based on the other-BSSID rate.
摘要翻译：检测符合IEEE 802.11标准的无线局域网（WLAN）系统中的相邻基本服务集（BSS）之间的干扰，其中任意接入点（AP）在相关BSS中无线地发送和接收来自站的帧包括：接收帧; 计算接收帧的其他BSSID速率; 以及基于其他BSSID速率确定是否发生了干扰。

8. 发明申请

US20090124288A1 INTEGRAL COMMUNICATION DEVICE AND CONTROL METHOD THEREOF 有权
标题翻译：综合通信设备及其控制方法
公开(公告)号：US20090124288A1
公开(公告)日：2009-05-14
申请号：US12259082
申请日：2008-10-27
申请人： Hak Hoon SONG , Sang Geun HWANG , Kyeong Jun KIM , Jeng Nam LEE
发明人： Hak Hoon SONG , Sang Geun HWANG , Kyeong Jun KIM , Jeng Nam LEE
IPC分类号： H04M1/00
CPC分类号： H04M1/0254
摘要： An integral communication device and method for controlling the integral communication device are provided for expanding the communication capability of a mobile terminal. An integral communication device of the present invention includes a plurality of communication modules that operate with different communication standards, a connector having terminals for electrical connection to a mobile terminal, a switch for switching the terminals of the connector between the communication modules, and a device controller for controlling the switch to establish electric links to the communication modules individually.
摘要翻译：提供用于控制集成通信设备的集成通信设备和方法，用于扩展移动终端的通信能力。本发明的集成通信装置包括以不同通信标准操作的多个通信模块，具有用于与移动终端电连接的终端的连接器，用于切换通信模块之间的连接器的终端的开关，以及设备控制器，用于控制开关以单独建立到通信模块的电连接。

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