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公开(公告)号：KR100924684B1
公开(公告)日：2009-11-03
申请号：KR1020060066791
申请日：2006-07-18
Applicant: 삼성전자주식회사 , 연세대학교 산학협력단
CPC classification number: H04W16/02 , H04L5/0007 , H04L5/0053 , H04L5/0062 , H04W56/00 , H04W88/08
Abstract: 본 발명은 광대역 무선통신시스템에서 동기를 잃은 기지국에 대하여 가드밴드를 설정하기 위한 장치 및 방법에 관한 것이다. 본 발명에 따른 기지국 장치는, 기지국간 동기 오차가 발생된 경우, 가드밴드를 설정하기 위한 제어신호를 발생하는 제어기와, 상기 제어신호에 따라 상기 기지국의 고유대역 중 상기 가드밴드를 제외한 대역에 송신 데이터를 매핑하여 출력하는 매퍼와, 상기 매퍼로부터의 데이터를 다중반송파 변조하기 위한 연산기를 포함한다. 이와 같은 본 발명은 기지국간 동기 오차로 발생하는 간섭에 대해서 가드밴드를 설정함으로써, 부반송파간의 간섭을 줄이고 단말의 QoS를 보장할 수 있다.
광대역 무선통신시스템, 가드밴드, 동기 오차, 동기 보정-
公开(公告)号：KR1020090100715A
公开(公告)日：2009-09-24
申请号：KR1020080026071
申请日：2008-03-20
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: H04L1/1825 , H04L1/0009 , H04L1/0025 , H04L1/0625 , H04L1/1671 , H04L1/1822 , H04L1/1893 , H04B7/0623 , H04B7/0697 , H04L1/0681
Abstract: PURPOSE: A retransmission mode selection method in a MIMO communication system and an apparatus thereof are provided to adaptively change a retransmission mode according to a channel state in the MIMO communication system, thereby improving error recovery capability of an HARQ technique in a fast fading channel. CONSTITUTION: A retransmission mode selection method in a MIMO communication system includes m receiving antennas(122,124) and a retransmission information generating unit(132). The m receiving antennas receive m streams which are initially transmitted. m is a fixed number more than 2. The retransmission information generating unit checks whether channel-decoded streams have errors after channel-decoding m streams.
Abstract translation: 目的：提供MIMO通信系统中的重传模式选择方法及其装置，以根据MIMO通信系统中的信道状态自适应地改变重发模式，从而提高快速衰落信道中HARQ技术的误码恢复能力。 构成：MIMO通信系统中的重发模式选择方法包括m个接收天线（122,124）和重发信息生成单元（132）。 m个接收天线接收最初发送的m个流。 m是大于2的固定数。重传信息生成单元在通道解码m个流之后检查信道解码流是否具有错误。
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公开(公告)号：KR1020090084602A
公开(公告)日：2009-08-05
申请号：KR1020080010884
申请日：2008-02-01
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W72/0446 , H04W28/06
Abstract: A resource allocation request system in a communication system and a method thereof are provided to reduce the overhead and delay generated when requesting an additional resource. A transmitter(401) transmits the value of an additional resource request field to a receiver(403)(405). A receiver assigns resources required for transmitting a header from which transmitter can request the additional resource allocation(407). The transmitter transmits a resource allocation request header to the receiver(409). The receiver assigns the resources requested from the transmitter(411).
Abstract translation: 提供通信系统中的资源分配请求系统及其方法，以减少在请求附加资源时产生的开销和延迟。 发射机（401）将附加资源请求字段的值发送到接收机（403）（405）。 接收机分配用于发送报头所需的资源，所述报头可以从哪个发送器请求附加资源分配（407）。 发射机向接收机发送资源分配请求报头（409）。 接收机分配从发射机（411）请求的资源。
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公开(公告)号：KR1020090047823A
公开(公告)日：2009-05-13
申请号：KR1020070113872
申请日：2007-11-08
Applicant: 삼성전자주식회사
CPC classification number: H04L1/1887 , H04L2001/0093 , H04W72/005 , H04W4/06 , H04W28/04 , H04W88/08
Abstract: 본 발명은 무선 통신 시스템에 관한 것으로서, 기지국의 멀티캐스트 서비스 제공 방법에 있어서, F번째 프레임에서 다수의 이동국으로 멀티캐스트 서비스에 상응하는 N번째 데이터 트래픽을 송신하는 과정과, F+1번째 프레임에서 적어도 하나의 이동국으로부터 상기 N번째 데이터 트래픽을 수신하지 못하였음을 의미하는 부정응답(NACK) 메시지를 수신하는지 판별하는 과정과, 상기 부정응답 메시지를 수신한 경우, F+2번째 프레임에서 부정 응답 메시지를 송신한 이동국에게 상기 N번째 데이터 트래픽을 재송신하는 과정을 포함한다.
멀티캐스트 서비스, 부정응답, 기지국, 이동국-
公开(公告)号：KR1020090023879A
公开(公告)日：2009-03-06
申请号：KR1020070088971
申请日：2007-09-03
Applicant: 삼성전자주식회사 , 보드 오브 리전츠, 더 유니버시티 오브 텍사스 시스템
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0621
Abstract: A signal processing apparatus and a method thereof are provided to update a transmission precoding matrix and transmission weight matrix, repetitively by using channel information and interference information, thereby effectively removing the interference generated in the external cell and internal cell. A base station apparatus in an MU MIMO(Multi-User Multiple Input Multiple Output) wireless communication system comprises a control information checkup device(202), a matrix decider(204), a control information generator(206), a modulator(208), a precoder(210), a signal buffer(212), a multiplexer(214), and a plurality of RFs(216-1_216-N). The control information checkup device confirms the control information received from a terminal. The matrix decider determines a precoding matrix to be used in the base station and a weight matrix to be used in the terminal by using the channel information and interference information. The control information generator produces the control information to be transmitted to the terminal. The modulator modulates information bit strings to be transmitted to each terminal to produce complex symbols. The precoder multiplies transmission signals to each terminal by a corresponding precoding matrix.
Abstract translation: 提供信号处理装置及其方法，通过使用信道信息和干扰信息来重复地更新传输预编码矩阵和传输权重矩阵，从而有效地消除在外部小区和内部小区中产生的干扰。 MU MIMO（多用户多输入多输出）无线通信系统中的基站装置包括控制信息检验装置（202），矩阵判定器（204），控制信息生成器（206），调制器（208） ，预编码器（210），信号缓冲器（212），多路复用器（214）和多个RF（216-1_216-N）。 控制信息检查装置确认从终端接收到的控制信息。 矩阵决定器通过使用信道信息和干扰信息确定要在基站中使用的预编码矩阵和要在终端中使用的加权矩阵。 控制信息生成器产生要发送到终端的控制信息。 调制器调制要发送到每个终端的信息位串，以产生复杂的符号。 预编码器通过相应的预编码矩阵将传输信号乘以每个终端。
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Patent Agency Ranking
公开(公告)号：KR1020090022999A
公开(公告)日：2009-03-04
申请号：KR1020070123788
申请日：2007-11-30
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W72/0406 , H04W72/0453 , H04W28/06 , H04W28/20 , H04W76/11
Abstract: A system for requesting the bandwidth allocation and allocating a bandwidth and a method therefor are provided to reduce the overhead due to the bandwidth request and improve the QoS(Quality of Service) of each CID by enabling a base station to recognize the bandwidths necessary for each CID without the separate overhead. A mobile station # 2(710) connects a type 2 grant processing sub header(730) including bandwidth information required for a CID #302(703) to a generic MAC header(720) including CID # 105(701) information, and transmits the connected result to a base station. The base station receiving message from the mobile station #2 detects the CID #302 which occupies the sixth on a CID list and the bandwidth requested by the CID #302 through the type 2 grant processing sub header, and then assigns the bandwidth to the mobile station #2.
Abstract translation: 提供一种用于请求带宽分配和分配带宽的方法及其方法，以减少由带宽请求引起的开销，并通过使基站能够识别每个CID所需的带宽来提高每个CID的QoS（服务质量） CID没有单独的开销。 移动站＃2（710）将包括CID＃302（703）所需的带宽信息的类型2许可处理子标题（730）连接到包括CID＃105（701）信息的通用MAC报头（720），并且发送 连接结果到基站。 来自移动台＃2的基站接收消息通过类型2授权处理子报头检测占用CID列表中第六个的CID＃302和CID＃302所请求的带宽，然后将该带宽分配给移动台 车站＃2。
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公开(公告)号：KR1020080105467A
公开(公告)日：2008-12-04
申请号：KR1020070053083
申请日：2007-05-31
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W28/24 , H04W28/0268 , H04W72/0493 , H04W88/08
Abstract: A method and an apparatus for supporting QoS(Quality of Service) of a wireless communication system are provided to support QoS of a user terminal in a cell boundary zone. An operating method of a base station for supporting QoS of a wireless communication terminal in a cell boundary comprises the steps of: confirming the decline of QoS level in the terminal(501); forming an enhanced service zone for service by which data are simultaneously transmitted to both a neighbor base station and the terminal(505); allocating resources for the simultaneous data transmission service to the terminal(509); and receiving corresponding data from an upper network entity.
Abstract translation: 提供了一种用于支持无线通信系统的QoS（Quality of Service，服务质量）的方法和装置，以支持用户终端在小区边界区域中的QoS。 用于支持小区边界中的无线通信终端的QoS的基站的操作方法包括以下步骤：确认终端中的QoS水平的下降（501）; 形成用于服务的增强服务区，通过该服务区域同时向邻近基站和终端发送数据（505）; 为所述终端（509）分配用于同时数据传输服务的资源; 并从上层网络实体接收相应的数据。
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公开(公告)号：KR1020080104999A
公开(公告)日：2008-12-03
申请号：KR1020080050163
申请日：2008-05-29
Applicant: 삼성전자주식회사 , 보드 오브 리전츠, 더 유니버시티 오브 텍사스 시스템
CPC classification number: H04B7/0417 , H04B7/0452 , H04B7/0626 , H04B7/0639 , H04B7/0665
Abstract: An apparatus and a method for beamforming in a MIMO(Multiple Input Multiple Output) wireless communication are provided to be adapted to the situation of the limited capacity of a control channel for exchanging beamforming vector selection information in a MIMO wireless communication system. A method for operating a base station in an MIMO wireless communication system comprises the steps of: repeatedly calculating, using information of downlink channel matrixes of spatial multiple access user terminals, downlink beamforming vectors of the user terminals to calculate the optimal beamforming vectors for the user terminals(201-207); quantizing the downlink beamforming vectors in order to transmit information of the downlink beamforming vectors(211); feeding forward information of the quantized downlink beamforming vectors to the user terminals over a control channel; calculating the final downlink beamforming vectors of the user terminals in consideration of an error due to the quantization; and summing the beamformed TX signals of the user terminals in accordance with the final downlink beamforming vectors and transmitting the summed TX signals through a plurality of TX antennas(213-221).
Abstract translation: 提供了一种用于MIMO（多输入多输出）无线通信中的波束成形的装置和方法，以适应于MIMO无线通信系统中用于交换波束成形向量选择信息的控制信道的有限容量的情况。 一种用于在MIMO无线通信系统中操作基站的方法包括以下步骤：重复计算使用空间多址用户终端的下行链路信道矩阵的信息，用户终端的下行链路波束成形向量，以计算用户的最佳波束成形向量 终端（201-207）; 量化下行链路波束形成向量以便发送下行链路波束形成向量（211）的信息; 通过控制信道将量化的下行链路波束成形向量的信息前馈给用户终端; 考虑到由于量化造成的误差，计算用户终端的最终下行波束成形向量; 并根据最终的下行链路波束成形向量对用户终端的波束形成的TX信号进行求和，并通过多个TX天线发送求和的TX信号（213-221）。
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公开(公告)号：KR1020080088211A
公开(公告)日：2008-10-02
申请号：KR1020070030846
申请日：2007-03-29
CPC classification number: H04W72/0466 , H04L5/0007 , H04L5/0053 , H04W72/042
Abstract: An apparatus and a method for transmitting and receiving resource allocation information in a communication system are provided to use a resource tree scheme in transmitting and receiving resource allocation information. A BS(Base Station) allocates downlink/uplink resources to each MS(Mobile Station) according to a predetermined scheduling scheme(100). The BS creates resource allocation information containing code information, which indicates size and location information for downlink/uplink resources allocated to each MS, and code length information, which indicates the length of the code information(102). Then the BS transmits the created resource allocation information to each MS.
Abstract translation: 提供一种用于在通信系统中发送和接收资源分配信息的装置和方法，以在资源分配信息的发送和接收中使用资源树方案。 BS（基站）根据预定的调度方案（100）向每个MS（移动台）分配下行链路/上行链路资源。 BS创建包含指示分配给每个MS的下行链路/上行链路资源的大小和位置信息的代码信息的资源分配信息，以及指示代码信息（102）的长度的代码长度信息。 然后BS向每个MS发送创建的资源分配信息。
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公开(公告)号：KR1020080087454A
公开(公告)日：2008-10-01
申请号：KR1020070029708
申请日：2007-03-27
Applicant: 삼성전자주식회사
CPC classification number: H04W36/0066 , H04W36/0083 , H04W36/08 , H04W36/14 , H04W88/10
Abstract: An apparatus and a method for mapping QoS(Quality of Service) parameters between heterogeneous systems in a wireless communication system are provided to solve a problem due to the inconsistency of QoS parameters and maintain QoS in handover by mapping QoS parameters for a mobile terminal which executes handover between heterogeneous systems. A wireless communication system comprises the first base station(110), the second base station(120), and a mapping server(130). The first base station executes communication with a mobile terminal(140) through a radio channel in accordance with the first standards. The second base station executes communication with the mobile terminal through a radio channel in accordance with the second standards. The mapping server, if a message containing a QoS parameter complying with the first standards is received from the first base station, maps the QoS parameter into a QoS parameter complying with the second standards. Then the mapping server transmits a message containing the mapped QoS parameter to the second base station.
Abstract translation: 提供了一种用于在无线通信系统中的异构系统之间映射QoS（服务质量）参数的装置和方法，以解决由于QoS参数的不一致而导致的问题，并通过映射执行的移动终端的QoS参数来维护切换中的QoS 异构系统之间切换。 无线通信系统包括第一基站（110），第二基站（120）和映射服务器（130）。 第一基站根据第一标准通过无线电信道执行与移动终端（140）的通信。 第二基站根据第二标准通过无线电信道执行与移动终端的通信。 如果从第一基站接收到包含符合第一标准的QoS参数的消息，映射服务器将QoS参数映射到符合第二标准的QoS参数中。 然后，映射服务器将包含映射的QoS参数的消息发送到第二基站。
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