利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

128 条记录 (耗时 0.055 秒)

    Method and apparatus for scheduling data packet transmission according to QoS in a mobile communication system
    3.
    发明授权
    Method and apparatus for scheduling data packet transmission according to QoS in a mobile communication system 有权
    在移动通信系统中根据QoS调度数据分组传输的方法和装置

    公开(公告)号：US07835326B2

    公开(公告)日：2010-11-16

    申请号：US10316589

    申请日：2002-12-11

    申请人： Dong-Jun Lee ,  Jae-Ho Jeon ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Seung-Joo Maeng ,  Sung-Won Lee ,  Sang-Hyun Yang

    发明人： Dong-Jun Lee ,  Jae-Ho Jeon ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Seung-Joo Maeng ,  Sung-Won Lee ,  Sang-Hyun Yang

    IPC分类号： H04B7/216

    CPC分类号： H04W72/1247 ,  H04W72/1231

    摘要： A scheduling apparatus for a base transceiver system (BTS), determines a point of data transmission to mobile stations (MSs). The BTS includes buffers for storing data to be transmitted to the MSs. A scheduler determines a priority of each of the MSs taking into account a data rate determined depending on a channel condition between the BTS and the MSs, a required amount of transmission data, and an amount of data to be transmitted to the MSs, and determines an MS having the highest priority among the MSs, as a destination MS to which data is to be transmitted by the BTS. The scheduler increases the required amount of transmission data upon receipt of a retransmitted data packet, and decreases the required amount of transmission data after transmitting data to the MSs.

    摘要翻译： 用于基站收发器系统（BTS）的调度装置确定向移动台（MS）发送的数据点。 BTS包括用于存储要发送到MS的数据的缓冲器。 考虑到根据BTS和MS之间的信道条件确定的数据速率，所需的发送数据量以及要向MS发送的数据量，调度器确定每个MS的优先级，并且确定 MS中具有最高优先级的MS作为要由BTS发送数据的目的地MS。 调度器在接收到重传的数据分组后增加所需的传输数据量，并且在向MS发送数据之后减少所需的传输数据量。

    Apparatus and method for estimating a velocity of a mobile station in a mobile communication system
    4.
    发明授权
    Apparatus and method for estimating a velocity of a mobile station in a mobile communication system 有权
    用于估计移动通信系统中的移动台的速度的装置和方法

    公开(公告)号：US07369876B2

    公开(公告)日：2008-05-06

    申请号：US10795982

    申请日：2004-03-10

    申请人： Ji-Ha Lee ,  Seung-Hyeon Nahm ,  Seung-Joo Maeng ,  Sung-Kwon Jo

    发明人： Ji-Ha Lee ,  Seung-Hyeon Nahm ,  Seung-Joo Maeng ,  Sung-Kwon Jo

    IPC分类号： H04B1/38

    CPC分类号： G01P3/50 ,  G01S11/10 ,  H04L25/022

    摘要： A base station apparatus and method for estimating a velocity of a mobile station in a mobile communication system are provided. In the apparatus and 9 method, a channel estimator receives a signal on a radio channel from the mobile station and performs channel estimation using the received signal. A velocity estimator detects a power spectrum value of the channel estimator, and provides the channel estimator with a channel estimation coefficient for use during channel estimation according to a Doppler shift frequency value of power estimated from the mobile station when the velocity of the mobile station is unchanged.

    摘要翻译： 提供了一种用于在移动通信系统中估计移动台的速度的基站装置和方法。 在装置和方法9中，信道估计器从移动台接收无线信道上的信号，并使用接收到的信号进行信道估计。 速度估计器检测信道估计器的功率谱值，并且在信道估计中提供信道估计系数，以在信道估计期间根据从移动站估计的功率的多普勒频移值，当移动台的速度为 不变

    Handover method and system in a broadband wireless access communication system
    5.
    发明授权
    Handover method and system in a broadband wireless access communication system 有权
    宽带无线接入通信系统中的切换方式和系统

    公开(公告)号：US07764649B2

    公开(公告)日：2010-07-27

    申请号：US11273203

    申请日：2005-11-14

    申请人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    发明人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    IPC分类号： H04W4/00

    CPC分类号： H04W72/048 ,  H04W16/10 ,  H04W36/20 ,  H04W72/0453

    摘要： Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user field to non-handover MSs located in a non-handover region, allocating at least one subchannel in the handover field to handover MSs located in a handover region, and performing communication through the allocated at least one subchannel.

    摘要翻译： 公开了一种在宽带无线接入（BWA）通信系统中使用的硬切换方法和系统。 所述方法和系统包括将移动台（MS）的数据传输区划分为切换区和普通用户区，在正常用户区中分配至少一个子信道到位于非切换区域的非切换MS，分配 切换字段中的至少一个子信道切换位于切换区域中的MS，以及通过所分配的至少一个子信道执行通信。

    Apparatus and method for signal processing in a handover in a BWA communication
    6.
    发明申请
    Apparatus and method for signal processing in a handover in a BWA communication 审中-公开
    BWA通信中的切换中的信号处理装置和方法

    公开(公告)号：US20060009212A1

    公开(公告)日：2006-01-12

    申请号：US11167664

    申请日：2005-06-27

    申请人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    发明人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    IPC分类号： H04Q7/20

    CPC分类号： H04B17/336

    摘要： An apparatus and method for processing received signals in a handover of a MS in a BWA communication system including a plurality of BSs capable of providing a service to the MS. According to the method, the MS receives signals of different BSs and detects preambles for each BS from the received signals. Further, the MS measures channel quality information corresponding to each of the detected preambles and compares the measured channel quality information with a preset threshold value. Further, the MS processes the signals received from the different BSs based on a result obtained by comparing the measured channel quality information with the preset threshold value.

    摘要翻译： 一种用于在包括能够向MS提供服务的多个BS的BWA通信系统中的MS的切换中处理接收信号的装置和方法。 根据该方法，MS接收不同BS的信号，并根据接收到的信号检测每个BS的前同步码。 此外，MS测量与每个检测到的前导码相对应的信道质量信息，并将测量的信道质量信息与预设阈值进行比较。 此外，MS基于通过将测量的信道质量信息与预设阈值进行比较而获得的结果来处理从不同BS接收的信号。

    Method and apparatus for allocating subcarriers in a broadband wireless communication system using multiple carriers
    8.
    发明申请
    Method and apparatus for allocating subcarriers in a broadband wireless communication system using multiple carriers 审中-公开
    在使用多个载波的宽带无线通信系统中分配副载波的方法和装置

    公开(公告)号：US20050201476A1

    公开(公告)日：2005-09-15

    申请号：US11077855

    申请日：2005-03-11

    申请人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  In-Seok Hwang

    发明人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  In-Seok Hwang

    IPC分类号： H04L27/26 ,  H04K1/10

    CPC分类号： H04L5/0044 ,  H04L5/0055 ,  H04L5/0057

    摘要： A method and apparatus for efficiently allocating subcarriers for data and/or a control signal requiring frequency diversity within the same symbol and for data or a control signal which needs to be transmitted in a frequency band with successive subcarriers, so as to transmit the signals simultaneously, satisfying the different requirements of frequency diversity and successive subcarrier allocation. Therefore, signal interference is reduced for a data signal having a frequency diversity gain and requiring a high data rate or a signal interfered by other signals.

    摘要翻译： 一种用于有效地分配用于数据的子载波和/或需要相同符号内的频率分集的控制信号的方法和装置，以及需要在具有连续子载波的频带中发送的数据或控制信号，以便同时发射信号 满足频率分集和连续子载波分配的不同要求。 因此，对于具有频率分集增益并且需要高数据速率或被其他信号干扰的信号的数据信号，信号干扰减小。

    Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme
    9.
    发明授权
    Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme 有权
    使用正交频分多址方案在通信系统中发送子信道信号的装置和方法

    公开(公告)号：US07715483B2

    公开(公告)日：2010-05-11

    申请号：US11077858

    申请日：2005-03-11

    申请人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Seung-Joo Maeng

    发明人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Seung-Joo Maeng

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0037 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04W16/12 ,  H04W28/16 ,  H04W74/00

    摘要： A method of allocating sub-channel signal interleaving patterns to BSs forming a wireless communication system that divides a frequency band into a plurality of sub-carriers and including a plurality of sub-channels, which are a set of predetermined adjacent sub-carriers. The method includes: creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having a same length as the basic orthogonal sequence by cyclic-shifting the basic orthogonal sequence a predetermined number of times or performing a modulo operation based on a number of the sub-carriers forming the sub-channel, after adding a predetermined offset to the cyclic-shifted basic orthogonal sequence; selecting a predetermined number of sequences corresponding to a number of the BSs from among the plurality of sequences; and allocating the selected sequences as the sub-channel signal interleaving patterns for the BSs.

    摘要翻译： 将子信道信号交织模式分配给形成无线通信系统的无线通信系统的方法，所述无线通信系统将频带划分成多个子载波，并且包括作为一组预定相邻子载波的多个子信道。 该方法包括：创建具有与形成子信道的子载波的数量相同的长度的基本正交序列; 通过将基本正交序列循环移位预定次数或者基于构成子信道的子载波的数量执行模运算来创建与基本正交序列具有相同长度的多个序列， 对循环移位的基本正交序列的预定偏移; 从所述多个序列中选择与所述BS的数量相对应的预定数量的序列; 并且将所选择的序列分配为用于BS的子信道信号交织模式。