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公开(公告)号：US20130013669A1
公开(公告)日：2013-01-10
申请号：US13533427
申请日：2012-06-26
Applicant: Sun-Sim CHUN , Young-Il KIM , Yang-Jung KIM , Il-Young CHONG
Inventor： Sun-Sim CHUN , Young-Il KIM , Yang-Jung KIM , Il-Young CHONG
IPC: G06F15/16
CPC classification number: G06F9/5055
Abstract: A web-based mobility guaranteeing method includes, at a terminal, connecting to a first service providing apparatus; transmitting a service request signal for requesting service information to the first service providing apparatus; at the first service providing apparatus, transmitting a service providability inquiry signal to a web-based service providing apparatus, based on whether or not the service information is able to be provided by the first service providing apparatus; at the web-based service providing apparatus, transmitting the service providability inquiry signal to a second service providing apparatus, receiving a service providability response signal from the second service providing apparatus, and changing a service provider of the terminal from the first service providing apparatus to the second service providing apparatus; and at the terminal, receiving a service response signal from the second service providing apparatus in response to the service request signal.
Abstract translation: 基于网络的移动性保证方法包括在终端处连接到第一服务提供设备; 向所述第一服务提供设备发送用于请求服务信息的服务请求信号; 在所述第一服务提供装置的基础上，基于所述第一服务提供装置是否能够提供所述服务信息，向所述基于web的服务提供装置发送服务提供性查询信号; 在基于网络的服务提供装置中，向第二服务提供装置发送服务提供性查询信号，从第二服务提供装置接收服务提供响应信号，并将终端的服务提供者从第一服务提供装置改变为 第二服务提供装置; 并且在终端处，响应于服务请求信号从第二服务提供装置接收服务响应信号。
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2.发明申请METHOD OF SETTING UP DYNAMIC MULTICAST AND BROADCAST SERVICE ZONE FOR PROVIDING MOBILE INTERNET PROTOCOL TELEVISION SERVICE 有权设置移动互联网协议电话服务的动态多播和广播业务区域的方法公开(公告)号：US20120163272A1
公开(公告)日：2012-06-28
申请号：US13335753
申请日：2011-12-22
Applicant: Yeon-Joon CHUNG , Young-Il KIM , Sun-Sim CHUN , Yong-Su LEE , Dae-Geun PARK , Young-Soo PARK , Sung-Hee KIM , Cheol-Hye CHO
Inventor： Yeon-Joon CHUNG , Young-Il KIM , Sun-Sim CHUN , Yong-Su LEE , Dae-Geun PARK , Young-Soo PARK , Sung-Hee KIM , Cheol-Hye CHO
IPC: H04W4/06
CPC classification number: H04W4/06 , H04L63/0892 , H04W12/06 , H04W72/005
Abstract: A technology of setting up a MBS zone for providing a mobile IPTV service is provided in which the MBS zone is effectively managed, so that QoS is prevented from being degraded due to the handover delay that is caused by a MBS handover occurring when a user moves between MBS zones.
Abstract translation: 提供了一种设置用于提供移动IPTV服务的MBS区域的技术，其中有效地管理MBS区域，从而防止由于当用户移动时发生的MBS切换引起的切换延迟而导致QoS劣化 在MBS区之间。
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公开(公告)号：US07103084B2
公开(公告)日：2006-09-05
申请号：US10183355
申请日：2002-06-28
Applicant: Il-Soon Jang , Kwang Soon Kim , Kyoung Seok Lee , Sun Sim Chun , Deuk Su Lyu
Inventor： Il-Soon Jang , Kwang Soon Kim , Kyoung Seok Lee , Sun Sim Chun , Deuk Su Lyu
CPC classification number: H04B1/70754
Abstract: An apparatus and method of searching a preamble signal in a search window for reducing a chip size of a preamble searcher in a transceiver of a base station is enclosed. By using a plurality of small window preamble searchers searching the preamble signal in a small search window, which is a division of a large search windows of a conventional preamble searcher divided by search start times, the preamble searcher of the entire search window can be implemented and the size of semiconductor chip is reduced by implementing distributing small preamble searcher in a small semiconductor chips.
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公开(公告)号：US08413201B2
公开(公告)日：2013-04-02
申请号：US12857093
申请日：2010-08-16
Applicant: Sun Sim Chun
Inventor： Sun Sim Chun
IPC: H04N7/173
CPC classification number: H04N21/6338 , H04L65/4076 , H04N21/2385 , H04N21/2402 , H04N21/25808 , H04N21/6405 , H04N21/6408
Abstract: In a mobile IPTV system, a multicast coordination entity (MCE) acquires information for radio resource allocation for satisfying all terminals through a counting procedure, and determines a radio bearer by considering a share of usage anticipation subcarrier for respective identifiers of contents. A scheduling subject is variable by a characteristic of the determined radio bearer.
Abstract translation: 在移动IPTV系统中，组播协调实体（MCE）通过计数过程获取用于满足所有终端的无线资源分配的信息，并且通过考虑用于内容的各个标识符的使用预期副载波的共享来确定无线承载。 调度对象由所确定的无线承载的特性变化。
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5.发明申请WIRELESS COMMUNICATION SYSTEM FOR PROVIDING DIVERSITY GAINS FOR MULTICAST SERVICES AND METHOD FOR PROVIDING MULTICAST SERVICES USING THE SYSTEM 审中-公开用于提供用于多媒体服务的多样性增益的无线通信系统和使用系统提供多播服务的方法公开(公告)号：US20120163270A1
公开(公告)日：2012-06-28
申请号：US13314707
申请日：2011-12-08
Applicant: Sun-Sim CHUN , Young-II Kim , Yong-Su Lee , Dae-Geun Park , Yeon-Joon Chung , Young-Soo Park
Inventor： Sun-Sim CHUN , Young-II Kim , Yong-Su Lee , Dae-Geun Park , Yeon-Joon Chung , Young-Soo Park
CPC classification number: H04B7/022 , H04B7/2606 , H04W76/40
Abstract: There are provided a wireless communication system for providing diversity gains for multicast services and a method of providing a multicast service. According to the wireless communication system, by transmitting, when terminals are partially distributed in each cell, data to areas where no user exists so as to reduce interference between other MBS (Multicast Broadcast System) zones and other cells that transmit only unicast services, performance deterioration may be minimized.
Abstract translation: 提供了一种用于为多播服务提供分集增益的无线通信系统和提供多播服务的方法。 根据无线通信系统，当将终端部分地分布在每个小区中时，通过发送数据到不存在用户的区域，以减少其他MBS（组播广播系统）区域与仅发送单播服务的其他小区之间的干扰，性能 恶化可能最小化。
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Patent Agency Ranking
公开(公告)号：US20070133702A1
公开(公告)日：2007-06-14
申请号：US11635576
申请日：2006-12-08
Applicant: Sun-Sim Chun , Hyeong-Jun Park , Ok-Sun Park
Inventor： Sun-Sim Chun , Hyeong-Jun Park , Ok-Sun Park
CPC classification number: H04L27/2662 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L27/2657 , H04L27/2675 , H04L27/2678
Abstract: The present invention relates to signal transmitting/receiving apparatuses. The signal transmitting apparatus includes an inverse discrete Fourier transform module, a cyclic prefix adding module, a preamble adding module, and a digital-analog converting module. The inverse discrete Fourier transform module receives modulated data, performs inverse discrete Fourier transform, and generates a first symbol. The cyclic prefix adding module adds a predetermined cyclic prefix to the first symbol, and generates a second symbol. The preamble adding module adds a predetermined preamble to the second symbol, and generates a third symbol. The digital-analog converting module converts the third symbol including the cyclic prefix and the preamble into an analog symbol.
Abstract translation: 本发明涉及信号发送/接收装置。 信号发送装置包括逆离散傅里叶变换模块，循环前缀添加模块，前置码添加模块和数模转换模块。 逆离散傅里叶变换模块接收调制数据，执行逆离散傅里叶变换，并产生第一符号。 循环前缀添加模块向第一符号添加预定的循环前缀，并生成第二符号。 前导码添加模块向第二符号添加预定的前导码，并生成第三符号。 数模转换模块将包括循环前缀和前同步码的第三符号转换为模拟符号。
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公开(公告)号：US08953512B2
公开(公告)日：2015-02-10
申请号：US13604826
申请日：2012-09-06
Applicant: Sun-Sim Chun , Young-Il Kim , Han-Nah Kim , Dae-Geun Park , Won Ryu
Inventor： Sun-Sim Chun , Young-Il Kim , Han-Nah Kim , Dae-Geun Park , Won Ryu
Abstract: Provided are an apparatus and method for transmitting multi-carriers to provide a high-quality service to multicast-based service subscriber terminals. The method includes: mapping first data for providing the multicast service, and second data different from the first data, to different antennas; converting the first mapped data into a first Intermediate Frequency (IF) signal and the second mapped data into a second IF signal; converting the first IF signal into a first RF signal having a carrier frequency, and deciding a power intensity of the first RF signal so that the first RF signal is transmitted over the entire coverage region of the base station; and converting the second IF signal into a second RF signal having the other carrier frequency, and deciding a power intensity of the second RF signal so that the second RF signal is transmitted over a predetermined region around the base station.
Abstract translation: 提供了一种用于发送多载波以向基于多播的服务用户终端提供高质量服务的装置和方法。 该方法包括：将用于提供多播服务的第一数据和与第一数据不同的第二数据映射到不同的天线; 将第一映射数据转换成第一中频（IF）信号，将第二映射数据转换成第二IF信号; 将所述第一IF信号转换为具有载波频率的第一RF信号，并且确定所述第一RF信号的功率强度，使得所述第一RF信号在所述基站的整个覆盖区域上传输; 以及将所述第二IF信号转换为具有所述另一载波频率的第二RF信号，并且确定所述第二RF信号的功率强度，使得所述第二RF信号在所述基站周围的预定区域上传输。
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8.发明申请RECEIVING APPARATUS AND METHOD FOR PROVIDING INPUT BITS OF FAST FOURIER TRANSFORMER ACCORDING TO MODULATION 有权接收装置和方法，用于根据调制提供快速傅立叶变换器的输入位置公开(公告)号：US20120114055A1
公开(公告)日：2012-05-10
申请号：US13291689
申请日：2011-11-08
Applicant: Yong-Su LEE , Young-Il Kim , Cheol-Hye Cho , Sung-Hee Kim , Young-Soo Park , Dae-Geun Park , Sun-Sim Chun , Yeon-Joon Chung , Won Ryu
Inventor： Yong-Su LEE , Young-Il Kim , Cheol-Hye Cho , Sung-Hee Kim , Young-Soo Park , Dae-Geun Park , Sun-Sim Chun , Yeon-Joon Chung , Won Ryu
IPC: H04L5/12
CPC classification number: H04L27/265 , H04L27/0008 , H04L27/0012 , H04L27/22 , H04L27/38
Abstract: A technology is provided capable of improving the efficiency of an OFDM system by obtaining the performance in Bit Error Rate (BER) in a wireless communication using OFDM and determining the minimum FFT input bit that produces a SNR difference of 0.1 dB or below with respect to a theoretical BER graph at a desired performance.
Abstract translation: 提供了能够通过使用OFDM获得无线通信中的比特误码率（BER）的性能并且确定相对于以下的方式产生0.1dB或更低的SNR差的最小FFT输入比特来提高OFDM系统的效率的技术 理想的BER图形，以期望的性能。
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公开(公告)号：US08139661B2
公开(公告)日：2012-03-20
申请号：US11635576
申请日：2006-12-08
Applicant: Sun-Sim Chun , Hyeong-Jun Park , Ok-Sun Park
Inventor： Sun-Sim Chun , Hyeong-Jun Park , Ok-Sun Park
IPC: H04K1/10
CPC classification number: H04L27/2662 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L27/2657 , H04L27/2675 , H04L27/2678
Abstract: The present invention relates to signal transmitting/receiving apparatuses. The signal transmitting apparatus includes an inverse discrete Fourier transform module, a cyclic prefix adding module, a preamble adding module, and a digital-analog converting module. The inverse discrete Fourier transform module receives modulated data, performs inverse discrete Fourier transform, and generates a first symbol. The cyclic prefix adding module adds a predetermined cyclic prefix to the first symbol, and generates a second symbol. The preamble adding module adds a predetermined preamble to the second symbol, and generates a third symbol. The digital-analog converting module converts the third symbol including the cyclic prefix and the preamble into an analog symbol.
Abstract translation: 本发明涉及信号发送/接收装置。 信号发送装置包括逆离散傅里叶变换模块，循环前缀添加模块，前置码添加模块和数模转换模块。 逆离散傅里叶变换模块接收调制数据，执行逆离散傅里叶变换，并产生第一符号。 循环前缀添加模块向第一符号添加预定的循环前缀，并生成第二符号。 前导码添加模块向第二符号添加预定的前导码，并生成第三符号。 数模转换模块将包括循环前缀和前同步码的第三符号转换为模拟符号。
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公开(公告)号：US20120166801A1
公开(公告)日：2012-06-28
申请号：US13335852
申请日：2011-12-22
Applicant: Young-Soo PARK , Young-Il KIM , Cheol-Hye CHO , Dae-Geun PARK , Yong-Su LEE , Sun-Sim CHUN
Inventor： Young-Soo PARK , Young-Il KIM , Cheol-Hye CHO , Dae-Geun PARK , Yong-Su LEE , Sun-Sim CHUN
IPC: H04L9/32
CPC classification number: H04L9/3273 , H04L9/3228 , H04L63/0869 , H04L63/1475 , H04L2209/80 , H04L2463/121
Abstract: Provided is a technique for mutual authentication between different kinds of objects (devices, apparatuses, users, etc.) by expanding the kinds of objects that are subject to authentication, such as authentication between users, authentication between users and an apparatuses (devices, equipment, terminals, etc.), and authentication between apparatuses (devices, equipment, terminals, etc.).
Abstract translation: 提供了一种通过扩展用户之间的认证，用户之间的认证和设备（设备，设备）之间的认证对象的种类的各种对象（设备，设备，用户等）之间的相互认证的技术 ，终端等），以及设备（设备，设备，终端等）之间的认证。
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