-
公开(公告)号：KR1020070073565A
公开(公告)日：2007-07-10
申请号：KR1020060051070
申请日：2006-06-07
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: H04L1/1614 , H04L1/1685 , H04W28/06
Abstract: A method for transmitting aggregated MAC(Medium Access Control) MPDUs(MAC Packet Data Unit) in a WLAN(Wireless Local Area Network) system and a system therefor are provided to expand a wireless service area to transmit service data in the same power by aggregating a plurality of MAC frames to one transmission frame and transmitting the transmission frame. A method for transmitting aggregated MAC MPDUs in a WLAN system to transmit service data includes the steps of: dividing the service data transmitted from an upper layer into a plurality of MAC MPDUs(512,514,516); forming one transmission frame including the plurality of MPDUs, border information, and ACK(Acknowledged) request information; and adding one physical header to the transmission frame, and transmitting the added frame to a receiving side. The plurality of MPDUs is sequentially arranged. The border information discriminates each of the MPDUs. The ACK request information requests a received result of the MPDUs.
Abstract translation: 提供了一种用于在WLAN（无线局域网）系统及其系统中发送聚合MAC（媒体访问控制）MPDU（MAC分组数据单元）的方法，以扩展无线服务区域，以通过聚合来传送相同功率的服务数据 多个MAC帧到一个传输帧并发送传输帧。 一种用于在WLAN系统中发送聚合MAC MPDU以发送业务数据的方法包括以下步骤：将从上层发送的业务数据划分成多个MAC MPDU（512,514,516）; 形成包括所述多个MPDU，边界信息和ACK（已确认）请求信息的一个传输帧; 并向发送帧添加一个物理报头，并将添加的帧发送到接收侧。 多个MPDU顺序排列。 边界信息区分每个MPDU。 ACK请求信息请求接收到的MPDU的结果。
-
公开(公告)号：KR1020070048584A
公开(公告)日：2007-05-09
申请号：KR1020060055055
申请日：2006-06-19
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: H04L12/12 , H04W4/06 , H04W36/00 , H04W52/0216 , H04W52/287 , H04W68/00 , H04W84/12 , H04W88/08 , Y02D70/142 , Y02D70/23 , Y02D70/00
Abstract: The present invention relates to a power saving in a wireless local area network including a plurality of access points providing at least one mobile station in each access point cell boundary with access service, the mobile station transits between an active mode and an idle mode. The power saving method includes grouping the access points into at least one paging group with a paging group boundary; determining if the a mobile station is in the idle mode in which the mobile station switches between an awake state and a doze state every predetermined time interval, or the active mode in which the mobile station is in the awake mode; and if the mobile station is in the idle mode enabling an idle handoff which occurs only when the mobile station crosses the paging group boundary. In the present invention, the handoff occurs when the mobile terminal crosses the paging group boundary but not the access point cell in the idle mode, resulting in reduction of power consumption.
-
公开(公告)号：KR100678223B1
公开(公告)日：2007-02-01
申请号：KR1020030015735
申请日：2003-03-13
Applicant: 재단법인서울대학교산학협력재단 , 삼성전자주식회사
IPC: H04W28/18 , H04L12/891
CPC classification number: H04L47/10 , H04L47/14 , H04L47/15 , H04L47/24 , H04L47/36 , H04L47/41 , H04W28/22 , H04W28/24
Abstract: 통신시스템의 패킷 전송 방법 및 장치에 대해 개시한다.
본 발명에 따른 패킷 전송 방법은 상위 계층으로부터 서비스 품질에 대한 정보와 데이터율 정보를 제공받는 과정과, 하위 계층으로부터 무선단말들의 채널 상태 정보를 제공받는 과정과, 상기 제공받은 정보들에 따라 집합패킷을 생성하여 매체접근제어 계층으로 전송하는 과정을 포함한다.
Aggregation, 오버헤드, MAC-
公开(公告)号：KR100506253B1
公开(公告)日：2005-08-10
申请号：KR1020030033460
申请日：2003-05-26
Applicant: 재단법인서울대학교산학협력재단 , 삼성전자주식회사
IPC: H04L12/861
CPC classification number: H04L69/04 , H04L49/90 , H04L49/9094
Abstract: Disclosed is a method for preventing transmission delay occurring when transmitting packet data to a destination in a transmission module including a first memory having a first memory area for storing packet data to be transmitted and a second memory area for backing up the first memory area, a second memory connected to a transmission link, and a frame processor. The method comprises storing a copy of the packet data stored in the second memory area according to a state of the second memory; deleting the packet data stored in the second memory area if copy of the packet data stored in the second memory is transmitted; determining whether packet data combining is possible according to a state of the second memory area; and if the packet data combining is possible, combining the packet data stored in the first memory area with the packet data stored in the second memory area and storing the combined packet data in the second memory.
-
公开(公告)号：KR1020040101746A
公开(公告)日：2004-12-03
申请号：KR1020030033460
申请日：2003-05-26
Applicant: 재단법인서울대학교산학협력재단 , 삼성전자주식회사
IPC: H04L12/861
CPC classification number: H04L69/04 , H04L49/90 , H04L49/9094
Abstract: PURPOSE: An apparatus and method for minimizing transmission delay in a data communication system is provided to prevent the transmission delay of packet data by temporarily storing the packet data to be transmitted to a transmitting buffer in a backup queue, directly transmitting the packet data when the transmitting buffer is in an idle state, and aggregating and transmitting newly received packet data and the previously received packet data in case that the transmitting buffer is in a busy state. CONSTITUTION: A transmission module for aggregation consists of a transmission management part(110) and a transmission protocol engine part(120). The transmission management part(110) covers the management of transmission data and preprocessing for a protocol header. The transmission protocol engine part(120) transmits actual packet data according to a transmission protocol. The transmission management part(110) is composed of a transmitting queue(111) and a frame processor(113). The transmitting queue(111) stores data for data management. The frame processor(113) aggregates the packet data stored in the transmitting queue(111). In addition, the transmission management part(110) comprises a backup queue(112) that temporarily stores the packet data to be transmitted to the transmission protocol engine part(120).
Abstract translation: 目的：提供一种用于最小化数据通信系统中的传输延迟的装置和方法，用于通过临时存储要发送到备份队列中的发送缓冲器的分组数据来防止分组数据的传输延迟，直接在备份队列中发送分组数据 发送缓冲器处于空闲状态，并且在发送缓冲器处于忙状态的情况下聚合和发送新接收的分组数据和先前接收的分组数据。 构成：用于聚合的传输模块由传输管理部分（110）和传输协议引擎部分（120）组成。 发送管理部（110）覆盖发送数据的管理和协议头的预处理。 传输协议引擎部分（120）根据传输协议发送实际的分组数据。 发送管理部（110）由发送队列（111）和帧处理部（113）构成。 发送队列（111）存储用于数据管理的数据。 帧处理器（113）聚合存储在发送队列（111）中的分组数据。 另外，发送管理部（110）具有临时存储要发送到发送协议引擎部（120）的分组数据的备用队列（112）。
-
Patent Agency Ranking
公开(公告)号：KR101345138B1
公开(公告)日：2013-12-26
申请号：KR1020070083823
申请日：2007-08-21
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
Abstract: 링크적응화(link adaptation) 시스템이개시된다. 링크적응화시스템은소스노드및 목적노드사이에형성된링크를통해전송된신호의신호대 잡음비(Signal to Noise Ratio)를추정하는 SNR 추정부, 상기목적노드로부터확인(acknowledge, ACK) 메시지를수신하였는지여부에따라오프셋(offset) 값을결정하는오프셋값 결정부및 결정된상기오프셋값을기초로추정된상기신호대 잡음비를보상하는 SNR 보상부를포함한다.
-
公开(公告)号：KR1020090083203A
公开(公告)日：2009-08-03
申请号：KR1020080009217
申请日：2008-01-29
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: H04W16/14 , H04W48/06 , H04W88/08 , H04B7/15507 , H04W28/20
Abstract: A method and a device of controlling bandwidth of channel adaptively are provided to adjust the bandwidth of a channel and transmit the information related to the adjusted channel bandwidth to terminals. A state information recognition unit(210) recognizes the neighboring state information related to traffic load of at least one neighbor network neighboring a target network. A bandwidth controller(230) controls the bandwidth of a target channel used in the target network in consideration of the bandwidth of a channel used in the neighbor network. The control state information transfer unit(240) transfers the control state information related to the bandwidth of the controlled target channel to the terminals which belong to the target network.
Abstract translation: 提供了自适应控制信道带宽的方法和装置，以调整信道的带宽，并将与调整的信道带宽相关的信息发送给终端。 状态信息识别单元（210）识别与目标网络相邻的至少一个邻居网络的业务负载相关的相邻状态信息。 考虑到在邻近网络中使用的信道的带宽，带宽控制器（230）控制目标网络中使用的目标信道的带宽。 控制状态信息传送单元（240）将与受控对象信道的带宽相关的控制状态信息传送到属于目标网络的终端。
-
公开(公告)号：KR1020090030576A
公开(公告)日：2009-03-25
申请号：KR1020070095968
申请日：2007-09-20
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
IPC: H04B7/26
CPC classification number: H04W52/243 , H04W52/242 , H04W52/248 , H04W72/044 , H04W84/18 , H04W88/06
Abstract: A cognitive radio terminal and a cognitive radio communication method are provided to perform the ad-hoc communication without largely influencing nodes which belong to the first network by using some of uplink radio resources of the first network or the whole. An availability radio resource determining unit(310) determines available radio resources among uplink radio resources allocated for uplink communication in the first network. An ad-hoc communication execution part(320) performs the ad-hoc communication in the second network by using the available radio resource. A power controller(330) controls the power of a transmission signal in consideration of the interference generated in a base station belonging to the first network.
Abstract translation: 提供认知无线电终端和认知无线电通信方法，以通过使用第一网络或整体的一些上行链路无线电资源来不影响属于第一网络的节点来执行自组织通信。 可用性无线电资源确定单元（310）确定在第一网络中为上行链路通信分配的上行链路无线资源中的可用无线电资源。 自组织通信执行部分（320）通过使用可用的无线电资源在第二网络中执行自组织通信。 功率控制器（330）考虑到属于第一网络的基站中产生的干扰来控制发送信号的功率。
-
公开(公告)号：KR101362060B1
公开(公告)日：2014-02-12
申请号：KR1020070095968
申请日：2007-09-20
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
IPC: H04B7/26
CPC classification number: H04W52/243 , H04W52/242 , H04W52/248
Abstract: 인지 무선 단말 장치가 개시된다. 인지 무선 단말 장치는 제1 네트워크(primary network)에서 상향 링크(up-link) 통신에 할당된 상향 링크 무선 자원 중 사용 가능한 무선 자원을 판단하는 가용 무선 자원 판단부 및 상기 사용 가능한 무선 자원을 이용하여 제2 네트워크(secondary network)에서 애드 혹(ad hoc) 통신을 수행하는 애드 혹 통신 수행부를 포함한다.
인지 무선, cognitive radio, 무선 자원, 통신, 애드 혹, 간섭, 파워-
公开(公告)号：KR101360350B1
公开(公告)日：2014-02-10
申请号：KR1020070083822
申请日：2007-08-21
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
IPC: H04B7/26
CPC classification number: H04B7/01
Abstract: 도플러 주파수를 이용한 링크 적응화(link adaptation) 시스템이 개시된다. 링크 적응화 시스템은 무선 채널을 통해 전송되는 신호의 도플러(Doppler) 주파수를 추정하는 도플러 주파수 추정부, 추정된 상기 도플러 주파수를 기초로 상기 무선 채널을 통해 전송되는 신호에 대한 SNR(Signal to Noise Ratio) 측정 간격(interval)을 결정하는 SNR 측정 간격 결정부 및 결정된 상기 SNR 측정 간격을 고려하여 상기 신호의 SNR을 측정하는 SNR 측정부를 포함한다.
도플러 주파수, 링크 적응화, 신호 대 잡음 비, MCS 레벨
-
-
-
-
-
-
-
-
-
Search Results
188
records
(took 0.046 seconds)
