中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.026 seconds)

    HADAMARD CODE GENERATING CIRCUIT
    1.
    发明专利
    HADAMARD CODE GENERATING CIRCUIT 失效

    公开(公告)号：JPH11177529A

    公开(公告)日：1999-07-02

    申请号：JP23784198

    申请日：1998-08-24

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： GYO EKISHU ,  TEI KOICHI ,  KIM KYUNG-SOO

    IPC: H03K3/84 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04L23/00 ,  H04J13/04

    Abstract: PROBLEM TO BE SOLVED: To provide the Hadamard code generating circuit by which 48th Hadamard code among orthogonal codes required to generate a signal or to extract the generated signal in the CDMA communication system. SOLUTION: The 48th Hadamard code generating circuit is made up of a 2-bit counter 24 that generates 4th Hadamard codes in low-order 2-bit, a 4-bit counter 21 that is operated by a carry output of the 2-bit counter 24 and produces a high-order Paley code having 12 states, a 6-bit reference counter 25 having 48 states by external reset, a 6-bit register 26 that stores an index value, and an exclusive OR gate 30 that exclusively Ors the high-order 12 Palye code and the 4th Hadamard code in the low-order 2-bit to produce the final 48th Hadamard code.

    APPARATUS AND METHOD FOR FAIRLY ALLOCATING RESOURCES IN BAND AMC MODE OF WIDEBAND WIRELESS ACCESS SYSTEM
    7.
    发明申请
    APPARATUS AND METHOD FOR FAIRLY ALLOCATING RESOURCES IN BAND AMC MODE OF WIDEBAND WIRELESS ACCESS SYSTEM 审中-公开
    宽带无线接入系统BAND AMC模式下公平分配资源的设备与方法

    公开(公告)号：WO2008035840A3

    公开(公告)日：2009-07-30

    申请号：PCT/KR2007001502

    申请日：2007-03-27

    Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  KIM EUN-KYUNG ,  KIM KYUNG-SOO

    Inventor： KIM EUN-KYUNG ,  KIM KYUNG-SOO

    IPC: H04L27/26 ,  H04W72/00 ,  H04W72/08 ,  H04W72/12 ,  H04W92/00

    CPC classification number: H04W72/1284 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/1231

    Abstract: Disclosed are an apparatus and a method for fairly allocating resources in a band adaptive modulation and coding (band AMC) mode of a wideband wireless access system. There is provided a method of fairly allocating resources in a band AMC mode of a wideband wireless access system when two or more mobile stations simultaneously transmit channel quality information (CQI) through an overlapping band. The method includes: when two or more mobile stations transmit the channel quality information (CQI) through an overlapping band, examining whether the mobile stations transmit information indicating that the overlapping band is the highest bands thereof; comparing tag values of the mobile stations transmitting the information indicating that the overlapping band is the highest band thereof and selecting one of the tag values having the highest priority, the tag values being given when the mobile stations transmit the information on the band at the beginning and the tag values stored for every frame being reset; allocating a sub channel corresponding to the highest band to the mobile station having the selected tag value; and changing the tag values of the mobile stations transmitting the information indicating that the overlapping band is the highest band thereof on the basis of the result of the comparison to reset the tag values.

    Abstract translation: 公开了一种用于在宽带无线接入系统的频带自适应调制和编码（频带AMC）模式中公平分配资源的装置和方法。 提供了当两个或多个移动站同时通过重叠频带发送信道质量信息（CQI）时，在宽带无线接入系统的频带AMC模式下公平分配资源的方法。 该方法包括：当两个或多个移动站通过重叠频带发送信道质量信息（CQI）时，检查移动站是否发送表示重叠频带是其最高频带的信息; 比较发送指示重叠频带是其最高频带的信息的移动站的标签值，并选择具有最高优先级的标签值中的一个，当移动站在开始时发送关于频带的信息时给出标签值 并且为每个帧复制存储的标签值; 将具有所选标签值的移动站分配与最高频带对应的子信道; 以及基于比较结果，改变发送表示重叠频带是其最高频带的信息的移动站的标签值，以重置标签值。

    METHOD FOR CONSTITUTING LAYERED CELL IN OFDMA SYSTEM
    8.
    发明申请
    METHOD FOR CONSTITUTING LAYERED CELL IN OFDMA SYSTEM 审中-公开
    在OFDMA系统中构成层状细胞的方法

    公开(公告)号：WO2005060360A2

    公开(公告)日：2005-07-07

    申请号：PCT/KR2004003408

    申请日：2004-12-22

    Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  SK TELECOM CO LTD ,  KT CORP ,  KT FREETEL CO LTD ,  HANARO TELECOM INC ,  CHANG SUNG-CHEOL ,  CHA JAE-SUN ,  KIM KYUNG-SOO ,  AHN JEE-HWAN

    Inventor： CHANG SUNG-CHEOL ,  CHA JAE-SUN ,  KIM KYUNG-SOO ,  AHN JEE-HWAN

    IPC: H04L5/02 ,  H04L27/26 ,  H04W16/02

    CPC classification number: H04L5/023 ,  H04L27/2608 ,  H04W16/02

    Abstract: Disclosed is a method for constituting a layered cell, which is for constituting a cell in an OFDMA (Orthogonal Frequency Division Multiple Access) mobile communication system. The method includes: (a) dividing L carriers having orthogonality into M sub-channels; (b) dividing the carriers into N groups each having the M sub-channels; (c) grouping the N groups by an arbitrary integer into K classes; and (d) constituting a plurality of layered cells corresponding to the K classes. According to the present invention, the conception of the independent classes is introduced for a plurality of carriers to facilitate the use of the carriers to a system requiring an independent wireless area, allowing design of sectors and cells at a single frequency.

    Abstract translation: 公开了一种用于构成OFDMA（正交频分多址）移动通信系统中的小区的分层小区的方法。 该方法包括：（a）将具有正交性的L个载波分成M个子信道; （b）将载波划分成各具有M个子信道的N个组; （c）将N组按任意整数分组为K类; 和（d）构成对应于K类的多个分层单元。 根据本发明，针对多个载波引入独立类的概念，以便于将载波用于需要独立无线区域的系统，允许在单个频率上设计扇区和小区。

Patent Agency Ranking