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公开(公告)号：KR1020090057693A
公开(公告)日：2009-06-08
申请号：KR1020070124387
申请日：2007-12-03
Applicant: 한국전자통신연구원
CPC classification number: H04B7/2656 , H04W99/00 , H04B7/0404 , H04L5/0007 , H04L27/2608 , H04W4/06
Abstract: A wireless communication system including multiple antennas is provided to estimate a wireless channel and allocate a resource between a plurality of users by comprising a super frame composed of a plurality of frames and the frame with a plurality of preambles. A plurality of preamble symbols are arranged(501). One signal symbol is arranged in an arbitrary position between the plurality of preamble symbols(502). At least one data symbol is arranged after the plurality of preamble symbols(503). The number of preamble symbols is larger than the number of the multiple antennas.
Abstract translation: 提供包括多个天线的无线通信系统，以估计无线信道，并通过包括由多个帧组成的超帧和具有多个前导码的帧来在多个用户之间分配资源。 布置多个前导符号（501）。 一个信号符号被布置在多个前导符号（502）之间的任意位置。 在多个前导码符号（503）之后布置至少一个数据符号。 前导符号的数量大于多个天线的数量。
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公开(公告)号：KR1020090055294A
公开(公告)日：2009-06-02
申请号：KR1020070122143
申请日：2007-11-28
Applicant: 한국전자통신연구원
IPC: H04B7/06
CPC classification number: H04B7/0691 , H04L47/50
Abstract: An apparatus and a method for transmitting data by using a multi-antenna are provided to support the QoS(Quality of Service) by determining an antenna group having a proper wireless channel according to data characteristics and transmitting data through the determined transmission antenna. A data transmitter(410) generates a transmission group data list including storage information of transmission set data, and transmits the correspondent transmission group data through a transmission FIFO selected by a transmission FIFO selector. Based on the priority depending on the characteristics of each group data and a reassign threshold value, the transmission FIFO selector selects a transmission FIFO correspondent to an optimal antenna group. A timing controller(430) controls the transmission timing of each group data. The timing controller controls the transmission timing of each group data.
Abstract translation: 提供一种通过使用多天线发送数据的装置和方法，以通过根据数据特性确定具有适当无线信道的天线组来支持QoS（服务质量），并通过所确定的发送天线发送数据。 数据发送器（410）生成包含发送设定数据的存储信息的发送组数据列表，并且通过由发送FIFO选择器选择的发送FIFO发送对应的发送组数据。 根据取决于每个组数据的特性和重新分配阈值的优先级，发送FIFO选择器选择对应于最佳天线组的发送FIFO。 定时控制器（430）控制每个组数据的发送定时。 定时控制器控制每组数据的传输定时。
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公开(公告)号：KR101727738B1
公开(公告)日：2017-04-18
申请号：KR1020100128264
申请日：2010-12-15
Applicant: 한국전자통신연구원
Abstract: 본발명은무선통신시스템에서의패킷전송방법및 장치에관한것이다. 본발명의일 실시예에따른패킷전송방법은, 무선통신시스템에서패킷전송장치가패킷을전송하는방법에있어서, 상기패킷이응답패킷인지여부를판단하는단계; 및상기패킷이응답패킷인경우에는, 상기무선통신시스템의다른패킷전송장치보다높은채널접근기회를가지고상기패킷을전송하는단계를포함한다. 본발명에의하면, 공정한경쟁기반의채널접근방법을사용하는무선통신시스템에서, 패킷전송장치가전송해야할패킷이남아있는상황에서도응답패킷을빠르게수신하지못하여자신에게주어진전송시간을모두사용하지못함으로인해, 시스템전체의성능이저하되는문제점을해결할수 있다.
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公开(公告)号：KR101721273B1
公开(公告)日：2017-03-29
申请号：KR1020120004809
申请日：2012-01-16
Applicant: 한국전자통신연구원
CPC classification number: G06F12/00 , G06F3/0611 , G06F3/0661 , G06F3/0673 , G06F13/4234 , G11C7/1006
Abstract: 메모리에비순차적으로저장된데이터를전송하는장치및 방법이개시된다. 데이터전송장치는데이터에전송순서정보를매핑하는순서정보매핑부; 전송순서정보에따라데이터의주소들을순차적으로저장한주소리스트를생성하는주소리스트생성부; 및주소리스트에주소가저장된순서에따라각 주소에대응하는데이터를전송하는데이터전송부를포함할수 있다.
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公开(公告)号：KR1020090064249A
公开(公告)日：2009-06-18
申请号：KR1020070131834
申请日：2007-12-15
Applicant: 한국전자통신연구원
IPC: H04W28/14 , H04W80/02 , H04L29/06 , H04L12/861
Abstract: A method and an apparatus for control medium access for processing data at high speed are provided to perform a high speed packet data reception process by reading the data corresponding to the data information stored according the sequence of a memory address. A medium access control device(100) includes a packet reception processor(110), a data multiprocessor(120), and a data arranging unit(130). The packet reception processor receives and processes the packet data delivered from a physical layer and extracts the data information. The data multiprocessor multiplies the extracted data according to the reception sequence and stores the data in a first memory. The data arranging unit arranges the stored data in a serial sequence by using the data memory address with the data and the extracted data information. The data arranging unit stores the data information in a second memory by using a descriptor.
Abstract translation: 提供用于高速处理数据的控制介质访问的方法和装置，以通过读取与根据存储器地址的顺序存储的数据信息相对应的数据来执行高速分组数据接收处理。 介质访问控制装置（100）包括分组接收处理器（110），数据多处理器（120）和数据排列单元（130）。 分组接收处理器接收并处理从物理层传递的分组数据并提取数据信息。 数据多处理器根据接收序列将提取的数据相乘，并将数据存储在第一存储器中。 数据排列单元通过使用具有数据的数据存储器地址和所提取的数据信息来以串行顺序排列存储的数据。 数据排列单元通过使用描述符将数据信息存储在第二存储器中。
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Patent Agency Ranking
公开(公告)号：KR1020090063757A
公开(公告)日：2009-06-18
申请号：KR1020070131239
申请日：2007-12-14
Applicant: 한국전자통신연구원
CPC classification number: H04L25/03318 , H04B7/0413 , H04L1/02
Abstract: An effective bit calculating method used with a soft-decision decoding apparatus for improving performance while reducing the implementation complexity in a multi input multi output system and a method thereof in a multi input multi output system and a method thereof are provided to maximize channel decoding performance. One or more multiplier multiplies the soft demapper signal according to a modulation mode by the size shape value of the null matrix vectors outputted from the detector. An effective bit calculator(302) deletes a part of the lower bit about the output bit of the multiplication method and extracts the effective bit. The effective bit calculating unit compares the absolute value and threshold value of the rest bit. According to the comparison result, the definite value is set up as the upper bit or rounds in the number corresponding to the specific bit.
Abstract translation: 与多输入多输出系统中的多输入多输出系统中的实现复杂度降低的软判决解码装置一起使用的有效比特计算方法及其方法提供给信道解码性能最大化 。 一个或多个乘法器根据调制模式将软解映射器信号乘以从检测器输出的零矩阵向量的大小形状值。 有效位计算器（302）删除关于乘法方法的输出位的低位的一部分，并提取有效位。 有效位计算单元比较其余位的绝对值和阈值。 根据比较结果，将确定的值设置为与特定位相对应的数字中的高位或舍入。
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公开(公告)号：KR1020120071144A
公开(公告)日：2012-07-02
申请号：KR1020100132760
申请日：2010-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04W74/085 , H04W74/08 , H04W80/02
Abstract: 본발명은 IEEE 802.11 무선랜 시스템과같은경쟁기반의분산매체접근제어시스템에서액세스포인트(AP)로부터받은스테이션(STA) 정보를바탕으로전송기회를획득함으로써무선네트워크의성능을향상시키는무선랜 시스템의매체접근제어장치및 방법에관한것으로서, 본발명은무선랜 시스템에서스테이션이같은액세스포인트와접속해있는다른스테이션들에대한정보와채널정보를바탕으로경쟁윈도우를결정함으로써, IEEE 802.11 의 DCF 방식에서비효율적인경쟁윈도우설정의발생을방지하여무선랜 시스템에서스테이션의처리속도를증가시키고, 최종적으로무선랜 네트워크의효율을향상시킬수 있는무선랜 시스템의매체접근제어장치및 방법을제공한다.
Abstract translation: 目的：提供一种无线LAN系统的媒体访问控制装置及其方法，用于基于与接入点连接的站的信息来确定CW。 构成：站计数提取单元（111）提取接收的信标内的BSS（基本业务集）负载单元内的站计数。 接入站号预测单元（113）预测接入站的数量。 最小CW（竞争窗口）确定单元（115）确定最小CW。 CW设置单元（117）设置CW。
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公开(公告)号：KR1020100068872A
公开(公告)日：2010-06-24
申请号：KR1020080127376
申请日：2008-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04W52/028 , H04L2027/0016 , H04L2027/0067 , H04W52/0245 , Y02D70/142
Abstract: PURPOSE: A receiver in a high speed wireless communication system and a controlling method thereof are provided to reduce the power consumption without the reception performance attenuation of a wireless receiver. CONSTITUTION: A carrier sensing unit senses a carrier used in a wireless communication system, and a decoder decodes a signal and the data from the carrier signal detected in the carrier sensing unit. A controller supplies power and clock to the carrier sensing unit only during a carrier sensing operation. When the carrier is sensed, the controller supplies power and clock to the entire receiver.
Abstract translation: 目的：提供高速无线通信系统中的接收机及其控制方法，以减少无线接收机的接收性能衰减而降低功耗。 构成：载波感测单元感测在无线通信系统中使用的载波，并且解码器对来自载波感测单元中检测到的载波信号的信号和数据进行解码。 只有在载波感测操作期间，控制器才能向载波检测单元提供电源和时钟。 当检测到载波时，控制器向整个接收器提供电源和时钟。
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公开(公告)号：KR101201201B1
公开(公告)日：2012-11-15
申请号：KR1020080127376
申请日：2008-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04W52/028 , H04L2027/0016 , H04L2027/0067 , H04W52/0245 , Y02D70/142
Abstract: An apparatus for reducing power consumption of a receiver in a high-speed wireless communication system and a control method thereof are provided. The apparatus for processing a signal in a receiver of a wireless communication system includes a carrier sensor configured to sense a carrier used in the wireless communication system, a decoder configured to decode the detected carrier signal to a signal and data, and a controller configured to control supplying power and a clock only to the carrier sensor during carrier sensing, and supplying power and a clock to an overall receiver when a carrier is sensed.
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公开(公告)号：KR1020110068930A
公开(公告)日：2011-06-22
申请号：KR1020100128264
申请日：2010-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04W72/10 , H04W36/18 , H04W72/1242 , H04W88/08
Abstract: PURPOSE: A packet transmission method at a wireless communication system is provided to have higher channel access change than other packet transmission device. CONSTITUTION: An access point generates a transmission target packet(S202). The access point determines whether a packet is a response packet or nort(S204). If the transmission packet is a response packet, the access point attempts to transmit a packet while having a higher channel access change than the other station(S206).
Abstract translation: 目的：提供一种在无线通信系统中的分组传输方法，以具有比其他分组传输设备更高的信道接入改变。 构成：接入点生成发送目标分组（S202）。 接入点确定分组是响应分组还是中继（S204）。 如果发送分组是响应分组，则接入点尝试发送分组，同时具有比其他台更高的频道接入改变（S206）。
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