利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

288 条记录 (耗时 0.049 秒)

    METHOD FOR PERFORMING CELL SELECTION IN A MOBILE COMMUNICATION SYSTEM AND SYSTEM THEREFOR
    31.
    发明申请
    METHOD FOR PERFORMING CELL SELECTION IN A MOBILE COMMUNICATION SYSTEM AND SYSTEM THEREFOR 审中-公开
    用于在移动通信系统中执行细胞选择的方法及其系统

    公开(公告)号：US20080132263A1

    公开(公告)日：2008-06-05

    申请号：US11945598

    申请日：2007-11-27

    申请人： Jae-Chon YU ,  Ju-Ho Lee ,  Hwan-Joon Kwon ,  Jin-Kyu Han ,  Yeon-Ju Lim ,  Young-Taek Kim ,  Kyeong-In Jeong

    发明人： Jae-Chon YU ,  Ju-Ho Lee ,  Hwan-Joon Kwon ,  Jin-Kyu Han ,  Yeon-Ju Lim ,  Young-Taek Kim ,  Kyeong-In Jeong

    IPC分类号： H04Q7/20

    CPC分类号： H04W48/20 ,  H04J11/0069 ,  H04W4/06

    摘要： A method for performing cell selection in a mobile communication system and a system therefor. Upon receiving a Multimedia Broadcast and Multicast Service (MBMS) service or a unicast service, a User Equipment (UE) performs cell search separately for each frequency band in an overlapping region between an MBMS-dedicated frequency band and a unicast service-available frequency band. In a first example, the UE allocates different cell identification codes for each cell according to types of the corresponding frequency bands to perform cell search. In a second example, the UE uses the system information broadcasted from the network over P-BCH to indicate whether each cell belongs to the MBMS-dedicated frequency band.

    摘要翻译： 一种用于在移动通信系统及其系统中执行小区选择的方法。 在接收到多媒体广播和组播服务（MBMS）服务或单播服务时，用户设备（UE）在MBMS专用频带和单播服务可用频带之间的重叠区域中为每个频带分别执行小区搜索 。 在第一示例中，UE根据相应频带的类型为每个小区分配不同的小区标识码，以执行小区搜索。 在第二示例中，UE使用通过P-BCH从网络广播的系统信息来指示每个小区是否属于MBMS专用频带。

    Method and apparatus for transmitting/receiving feedback information in mobile telecommunication using multiple input multiple output
    33.
    发明授权
    Method and apparatus for transmitting/receiving feedback information in mobile telecommunication using multiple input multiple output 有权
    用于使用多输入多输出在移动电信中发送/接收反馈信息的方法和装置

    公开(公告)号：US08165075B2

    公开(公告)日：2012-04-24

    申请号：US12013786

    申请日：2008-01-14

    申请人： Jin-Kyu Han ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    发明人： Jin-Kyu Han ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0413 ,  H04B7/061 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0689

    摘要： A method for transmitting feedback information in a mobile communication system using Multiple Input Multiple Output (MIMO) is provided. The method includes, when knockdown precoding is used and Antenna Selection precoding is used, setting an index field for indicating a universal matrix of a precoding matrix of a first reverse feedback channel to a value indicating whether Antenna Selection Space Time Transmit Diversity (STTD) is present; when the knockdown precoding is used and the Antenna Selection precoding is used, writing antenna selection information in a vector bitmap field of the first reverse feedback channel; and when the knockdown precoding is used and the Antenna Selection precoding is used, estimating Channel Quality Information (CQI) according to the antenna selection information and writing the estimated CQI in a CQI field of a second reverse feedback channel.

    摘要翻译： 提供了一种在使用多输入多输出（MIMO）的移动通信系统中发送反馈信息的方法。 该方法包括：当使用击倒预编码并使用天线选择预编码时，将用于指示第一反向反馈信道的预编码矩阵的通用矩阵的索引字段设置为指示天线选择时间发送分集（STTD）是否为 当下; 当使用击倒预编码并使用天线选择预编码时，将天线选择信息写入第一反向反馈信道的矢量位图字段; 并且当使用击倒预编码并且使用天线选择预编码时，根据天线选择信息估计信道质量信息（CQI）并将估计的CQI写入第二反向反馈信道的CQI字段。

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DOWNLINK DATA IN WIRELESS COMMUNICATION NETWORK
    34.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DOWNLINK DATA IN WIRELESS COMMUNICATION NETWORK 审中-公开
    用于在无线通信网络中发送/接收下行链路数据的方法和装置

    公开(公告)号：US20100284359A1

    公开(公告)日：2010-11-11

    申请号：US12810955

    申请日：2008-12-26

    申请人： Dong-Hee Kim ,  Hwan-Joon Kwon ,  Jae-Chon Yu ,  Yeon-Ju Lim ,  Cheol Mun ,  Jong-Gwan Yook

    发明人： Dong-Hee Kim ,  Hwan-Joon Kwon ,  Jae-Chon Yu ,  Yeon-Ju Lim ,  Cheol Mun ,  Jong-Gwan Yook

    IPC分类号： H04W72/12 ,  H04L27/28

    CPC分类号： H04B7/024 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0639

    摘要： Disclosed is C-SDMA and C-BF technology for effectively suppressing inter-cell interference from neighboring BTSs only by using partial channel information delivered from an AT over a limited uplink feedback channel in a collaborative wireless communication system employing an FDD scheme and including neighboring BTSs connected to each other through a high-speed wireline communication network. C-SDMA technology makes it possible to select the optimal feedback scheme by considering uplink feedback channel capacity allowed in the system. C-BF technology uses information on beamforming signal weight and main beamforming interference weight vectors to suppress collision between formed by weights that each BTS uses, thereby improving system transmission capacity. Technology providing higher system capacity is adaptively selected from among C-SDMA and C-BF by using limited feedback information, so that high system capacity is provided in various environmental conditions.

    摘要翻译： 公开了C-SDMA和C-BF技术，其仅通过在采用FDD方案并且包括相邻BTS的协作无线通信系统中通过有限上行链路反馈信道从AT传送的部分信道信息来有效地抑制来自相邻BTS的小区间干扰 通过高速有线通信网络相互连接。 C-SDMA技术可以通过考虑系统中允许的上行链路反馈信道容量来选择最佳反馈方案。 C-BF技术使用关于波束成形信号权重和主波束形成干扰权重向量的信息来抑制由每个BTS使用的加权形成的冲突，从而提高系统传输容量。 通过使用有限的反馈信息，从C-SDMA和C-BF中自适应地选择提供更高系统容量的技术，从而在各种环境条件下提供高系统容量。

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING FEEDBACK INFORMATION IN A WIRELESS PACKET DATA COMMUNICATION SYSTEM
    37.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING FEEDBACK INFORMATION IN A WIRELESS PACKET DATA COMMUNICATION SYSTEM 有权
    用于在无线数据包通信系统中发送/接收反馈信息的方法和装置

    公开(公告)号：US20080101498A1

    公开(公告)日：2008-05-01

    申请号：US11933974

    申请日：2007-11-01

    申请人： Jin-Kyu HAN ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    发明人： Jin-Kyu HAN ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0641 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0039 ,  H04L1/004 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0228 ,  H04L27/2646 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/0406

    摘要： A Channel Quality Indicator (CQI) expression and feedback method prevents an excessive increase in the CQI feedback overhead while supporting both Single-User MIMO and Multi-User MIMO operations. When a default MIMO operation is set to Single-User MIMO or Multi-User MIMO, an access network can receive MIMO CQI feedback optimized for the corresponding MIMO operation. However, when a scheduler has selected an alternative MIMO operation other than the default MIMO operation, the access network calculates a CQI necessary for the alternative MIMO operation based on the default MIMO CQI feedback for the default MIMO operation and the DELTA CQI feedback for the alternative MIMO operation. In this manner, the invention enables the best operation in the default MIMO operation by providing a correct CQI, and enables the second best operation in the alternative MIMO operation. With use of the invention, the access network can dynamically select the Single-User MIMO and Multi-User MIMO operations, contributing to an increase in the resource management efficiency.

    摘要翻译： 信道质量指示符（CQI）表达和反馈方法防止了CQI反馈开销的过度增加，同时支持单用户MIMO和多用户MIMO操作。 当默认MIMO操作被设置为单用户MIMO或多用户MIMO时，接入网络可以接收针对相应MIMO操作优化的MIMO CQI反馈。 然而，当调度器选择除了默认MIMO操作之外的替代MIMO操作时，接入网基于用于默认MIMO操作的默认MIMO CQI反馈和替代的DELTA CQI反馈来计算替代MIMO操作所需的CQI MIMO操作。 以这种方式，通过提供正确的CQI，本发明能够在默认的MIMO操作中实现最佳的操作，并且使得在替代的MIMO操作中能够实现第二最佳的操作。 利用本发明，接入网络可以动态选择单用户MIMO和多用户MIMO操作，有助于提高资源管理效率。

    Method and apparatus for managing control channel in a mobile communication system using multiple antennas
    38.
    发明授权
    Method and apparatus for managing control channel in a mobile communication system using multiple antennas 有权
    在使用多个天线的移动通信系统中管理控制信道的方法和装置

    公开(公告)号：US08774152B2

    公开(公告)日：2014-07-08

    申请号：US12013711

    申请日：2008-01-14

    申请人： Jin-Kyu Han ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    发明人： Jin-Kyu Han ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    IPC分类号： H04B7/216

    CPC分类号： H04B7/0456 ,  H04B7/0617 ,  H04B7/0669 ,  H04L1/0625 ,  H04L5/0051

    摘要： A method for transmitting and receiving a control channel message in a mobile communication system using multiple antennas is provided. A base station determines whether a common pilot is used or a dedicated pilot is used. It also determines whether a corresponding Multiple Input Multiple Output (MIMO) mode is a Multi-CodeWord (MCW) MIMO mode or a Single CodeWord (SCW) MIMO mode, and determines whether knockdown precoding is used or ready-made precoding is used. The base station generates a control channel message field including a pilot pattern and a precoding type according to the determination results, and transmits the generated control channel message to the terminal. The terminal receives a control channel message transmitted from a base station. The terminal determines whether a common pilot is used or a dedicated pilot is used, whether a corresponding MIMO mode is an MCW MIMO mode or an SCW MIMO mode, and whether knockdown precoding is used or ready-made precoding is used. The terminal analyzes the control channel message field according to the determination results, and determines a data reception method according to the analysis result.

    摘要翻译： 提供了一种在使用多个天线的移动通信系统中发送和接收控制信道消息的方法。 基站确定是使用公共导频还是使用专用导频。 它还确定相应的多输入多输出（MIMO）模式是多码字（MCW）MIMO模式还是单码（SCW）MIMO模式，并确定是否使用击倒预编码或使用现成的预编码。 基站根据确定结果生成包括导频模式和预编码类型的控制信道消息字段，并将生成的控制信道消息发送到终端。 终端接收从基站发送的控制信道消息。 终端确定是否使用公共导频或使用专用导频，对应的MIMO模式是MCW MIMO模式还是SCW MIMO模式，以及是否使用击倒预编码或者使用现成的预编码。 终端根据确定结果分析控制信道消息字段，并根据分析结果确定数据接收方法。

    Method and apparatus for transmitting/receiving data in an orthogonal frequency division multiple access system
    39.
    发明授权
    Method and apparatus for transmitting/receiving data in an orthogonal frequency division multiple access system 有权
    用于在正交频分多址系统中发送/接收数据的方法和装置

    公开(公告)号：US08331472B2

    公开(公告)日：2012-12-11

    申请号：US11942281

    申请日：2007-11-19

    申请人： Hwan-Joon Kwon ,  Jae-Chon Yu ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yeon-Ju Lim ,  Seung-Kyun Oh

    发明人： Hwan-Joon Kwon ,  Jae-Chon Yu ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yeon-Ju Lim ,  Seung-Kyun Oh

    IPC分类号： H04B7/02

    CPC分类号： H04L5/0007 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0058

    摘要： A method for transmitting data in an Orthogonal Frequency Division Multiple Access (OFDMA) system. The data transmission method includes determining a number of diversity tiles, each of which includes physically separated frequency resources; dividing an entire system band into diversity subbands including the diversity tiles and localized subbands including localized tiles, each of which includes physically adjacent frequency resources, when the determined number of diversity tiles is greater than a threshold; uniformly distributing the diversity tiles over the entire system band, and disposing the localized tiles in the remaining bands except for the diversity tiles, when the determined number of diversity tiles is not greater than the threshold; and transmitting data to multiple terminals over the configured diversity tiles and localized tiles using diversity transmission and localized transmission schemes.

    摘要翻译： 一种在正交频分多址（OFDMA）系统中发送数据的方法。 数据传输方法包括确定多个分集瓦片，每个分组瓦片包括物理上分离的频率资源; 将整个系统频带划分成分集子带，其包括分集瓦片和局部子带，其中当所确定的分集瓦片数量大于阈值时，包括局部瓦片，每个区域包括物理上相邻的频率资源; 当所确定的分集瓦数不大于阈值时，在整个系统频带上均匀分布分集瓦片，以及将局部瓦片布置在除了分集瓦片之外的剩余波段中; 以及使用分集传输和局部传输方案通过所配置的分集瓦片和局部瓦片将数据发送到多个终端。

    Method and apparatus for transmitting and receiving shared control channel message in a wireless communication system using orthogonal frequency division multiple access
    40.
    发明授权
    Method and apparatus for transmitting and receiving shared control channel message in a wireless communication system using orthogonal frequency division multiple access 有权
    在使用正交频分多址的无线通信系统中发送和接收共享控制信道消息的方法和装置

    公开(公告)号：US08005154B2

    公开(公告)日：2011-08-23

    申请号：US11964325

    申请日：2007-12-26

    申请人： Hwan-Joon Kwon ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    发明人： Hwan-Joon Kwon ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Jae-Chon Yu ,  Yeon-Ju Lim

    IPC分类号： H04L27/28

    CPC分类号： H04L25/03343 ,  H04L5/0023 ,  H04L5/0048 ,  H04L2025/03426

    摘要： A method and apparatus for transmitting/receiving a shared control channel message in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system are provided. The message transmission apparatus receives feedback information from a terminal; determines whether to transmit data by applying preceding; and transmits, in the shared control channel message, control information whose message type is differently set according to the application of the preceding. The message reception apparatus receives the shared control channel message from a base station; determines a message type of the shared control channel message; and if the message type is a Transmit Diversity (TD)-Forward Link Assignment Message (FLAM), demodulates data by at least one of Single Input Single Output (SISO) and Spatial Time Transmit Diversity (STTD) as indicated by the TD-FLAM.

    摘要翻译： 提供了一种用于在正交频分多址（OFDMA）无线通信系统中发送/接收共享控制信道消息的方法和装置。 消息发送装置从终端接收反馈信息; 确定是否通过应用前一个传输数据; 并且在共享控制信道消息中根据前述的应用在其消息类型被不同地设置的控制信息中发送。 消息接收装置从基站接收共享控制信道消息; 确定共享控制信道消息的消息类型; 并且如果消息类型是发射分集（TD） - 前向链路分配消息（FLAM），则通过由TD-FLAM指示的单输入单输出（SISO）和空时发射分集（STTD）中的至少一个解调数据 。