METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    81.
    发明申请
    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访问系统中发送/接收数据的方法和装置

    公开(公告)号:US20080123766A1

    公开(公告)日:2008-05-29

    申请号:US11942281

    申请日:2007-11-19

    IPC分类号: H04B7/02

    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 files 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; 当所确定的分集文件数不大于阈值时,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其余频段中; 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 CONFIGURING CHANNEL NODE TREE IN AN OFDMA WIRELESS COMMUNICATION SYSTEM
    82.
    发明申请
    METHOD AND APPARATUS FOR CONFIGURING CHANNEL NODE TREE IN AN OFDMA WIRELESS COMMUNICATION SYSTEM 有权
    用于在OFDMA无线通信系统中配置通道节点树的方法和装置

    公开(公告)号:US20080095074A1

    公开(公告)日:2008-04-24

    申请号:US11923312

    申请日:2007-10-24

    IPC分类号: H04L12/44

    CPC分类号: H04L5/023 H04L27/2602

    摘要: A method and apparatus for configuring a channel node tree in an OFDMA wireless communication system are provided, in which as many DRCH nodes as the number of DRCHs used for a frame are configured at base nodes, as many BRCHs as the number of DRCHs are selected from among BRCHs used for the frame, BRCH nodes with unselected BRCHs are configured at base nodes, and upper nodes are configured using the base nodes corresponding to the DRCH nodes and the BRCH nodes.

    摘要翻译: 提供了一种用于在OFDMA无线通信系统中配置信道节点树的方法和装置,其中在基站节点处配置与用于帧的DRCH的数量一样多的DRCH节点,与选择的DRCH的数量一样多的BRCH 从用于该帧的BRCH中,具有未选择的BRCH的BRCH节点被配置在基本节点处,并且使用与DRCH节点和BRCH节点相对应的基本节点来配置上位节点。

    Frequency hopping method and apparatus in a wireless communication system
    83.
    发明申请
    Frequency hopping method and apparatus in a wireless communication system 有权
    无线通信系统中的跳频方法和装置

    公开(公告)号:US20080025285A1

    公开(公告)日:2008-01-31

    申请号:US11788900

    申请日:2007-04-23

    IPC分类号: H04B7/208

    摘要: A method for supporting frequency hopping of a transmission apparatus by a reception apparatus in a wireless communication system supporting Hybrid Automatic Repeat reQuest (HARQ). The method includes determining whether a particular transmission apparatus has a need to perform hopping of allocating a different logical channel every Transmission Time Interval (TTI); and when there is no need to perform hopping every TTI, sending to the transmission apparatus a command to perform hopping every multiple TTIs, and simultaneously signaling information on a number of the multiple TTIs.

    摘要翻译: 一种用于在支持混合自动重传请求(HARQ)的无线通信系统中由接收装置支持发送装置的跳频的方法。 该方法包括确定特定传输设备是否需要执行每个传输时间间隔(TTI)分配不同逻辑信道的跳频; 并且当不需要每TTI执行跳频时,向发送装置发送每多个TTI执行跳频的命令,并且同时发送关于多个TTI的数量的信息。

    Apparatus and method for transmitting/receiving data in a multi-antenna communication system
    84.
    发明申请
    Apparatus and method for transmitting/receiving data in a multi-antenna communication system 有权
    在多天线通信系统中发送/接收数据的装置和方法

    公开(公告)号:US20070104283A1

    公开(公告)日:2007-05-10

    申请号:US11589985

    申请日:2006-10-31

    IPC分类号: H04K1/10

    摘要: An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.

    摘要翻译: 一种在根据从终端反馈的信道状态信息发送数据并使用多个天线的无线通信系统的基站中发送数据的装置。 基于信道状态信息,调度器确定基站将发送数据的终端,确定基站将在多个天线之间发送数据的天线,并确定空间预编码方法。 复用器根据确定的天线的数量将传输数据复用到多个数据流中。 调制和编码单元对每个数据流执行调制和编码。 预编码控制器根据空间预编码方法输出用于选择多个空间预编码矩阵之一的矩阵选择信号。 空间预编码器使用基于矩阵选择信号选择的矩阵对每个编码流进行空间编码。 OFDM调制器对每个空间编码流执行OFDM调制。 RF单元经由相关联的天线发送每个OFDM调制的流。

    Method and apparatus for transmitting/receiving feedback information in a wireless packet data communication system
    85.
    发明授权
    Method and apparatus for transmitting/receiving feedback information in a wireless packet data communication system 有权
    用于在无线分组数据通信系统中发送/接收反馈信息的方法和装置

    公开(公告)号:US09083412B2

    公开(公告)日:2015-07-14

    申请号:US11933974

    申请日:2007-11-01

    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 transmitting and receiving control channel message in a MIMO mobile communication system
    87.
    发明授权
    Method and apparatus for transmitting and receiving control channel message in a MIMO mobile communication system 有权
    用于在MIMO移动通信系统中发送和接收控制信道消息的方法和装置

    公开(公告)号:US08194781B2

    公开(公告)日:2012-06-05

    申请号:US11966507

    申请日:2007-12-28

    IPC分类号: H04L27/00

    CPC分类号: H04L1/0625 H04B7/0617

    摘要: A method and apparatus for transmitting and receiving a control channel message in a Multiple Input Multiple Output (MIMO) mobile communication system are provided, in which a control channel message generator generates a pilot/MIMO field indicating at least one of a pilot format, a MIMO transmission rank being a number of transmission layers for transmitting encoded packet streams, and precoding information for MIMO data transmission, and outputs a control channel message including the pilot/MIMO field, and a transmission module converts the control channel message to a radio signal and transmits the radio signal to an MS. In the case of using common pilots for data demodulation and at least one of knock-down precoding and ready-made precoding for the MIMO transmission, the pilot/MIMO field includes information about the at least one precoding. In the case of dedicated pilots for data demodulation, the pilot/MIMO field indicates a format of the dedicated pilots.

    摘要翻译: 提供了一种用于在多输入多输出(MIMO)移动通信系统中发送和接收控制信道消息的方法和装置,其中控制信道消息发生器产生指示导频/ MIMO字段,其指示导频格式, MIMO发送等级是用于发送编码分组流的多个发送层和用于MIMO数据传输的预编码信息,并且输出包括导频/ MIMO字段的控制信道消息,并且发送模块将控制信道消息转换为无线电信号,以及 将无线电信号发送到MS。 在使用用于数据解调的公共导频和用于MIMO传输的降序预编码和即用预编码中的至少一个的情况下,导频/ MIMO字段包括关于该至少一个预编码的信息。 在用于数据解调的专用导频的情况下,导频/ MIMO字段指示专用导频的格式。

    Method and apparatus for CDMA control segment hopping in a mobile communication system
    88.
    发明授权
    Method and apparatus for CDMA control segment hopping in a mobile communication system 有权
    移动通信系统中CDMA控制段跳频的方法和装置

    公开(公告)号:US08121044B2

    公开(公告)日:2012-02-21

    申请号:US11924361

    申请日:2007-10-25

    IPC分类号: H04B7/216 H04J1/00

    摘要: A method and apparatus for hopping of a Code Division Multiple Access (CDMA) control segment that carries control information in an Orthogonal Frequency Division Multiple Access (OFDMA) packet data mobile communication system are provided, in which a number of CDMA control segment hopping zones, each CDMA control segment hopping zone representing a frequency area for CDMA control segment hopping, is determined according to a total number of available tiles in the system and a number of tiles per CDMA control segment, each tile including a predetermined number of subcarriers, or according to a total number of available subcarriers in the system and a number of subcarriers per CDMA control segment. Start points of the hopping zones are determined using the number of the hopping zones, and the control information is transmitted or received in the CDMA control segment through hopping of the CDMA control segment over the hopping zones using the start points.

    摘要翻译: 提供一种在正交频分多址(OFDMA)分组数据移动通信系统中携带控制信息的码分多址(CDMA)控制段跳频的方法和装置,其中多个CDMA控制段跳频区, 表示用于CDMA控制段跳频的频率区域的每个CDMA控制段跳频区域根据系统中的可用瓦片的总数和每个CDMA控制段的瓦片数量确定,每个瓦片包括预定数量的子载波,或根据 到系统中的可用副载波的总数和每个CDMA控制段的多个副载波。 使用跳频区的数量来确定跳频区的起始点,并且通过使用起始点在跳频区上跳过CDMA控制段来在CDMA控制段中发送或接收控制信息。

    Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof
    90.
    发明授权
    Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof 有权
    OFDMA系统中的自适应数据复用方法及其发送/接收装置

    公开(公告)号:US08064327B2

    公开(公告)日:2011-11-22

    申请号:US11417218

    申请日:2006-05-04

    IPC分类号: H04J11/00

    摘要: A transmission/reception method and apparatus in an Orthogonal Frequency Division Multiplexing (OFDM)-based wireless communication system are provided, in which a data transmitter adaptively selects a multiplexing scheme according to a code rate of the transmission packet or an effective SNR of a wireless channel for a corresponding terminal, when transmitting a packet data channel. The adaptive multiplexing scheme is equal in concept to a scheme of adaptively implementing unitary precoding. The unitary precoded multiplexing includes Orthogonal Frequency code Domain Multiplexing (OFCDM), Fast Fourier Transform-Spread-OFDM (FFT-S-OFDM), Fast Frequency Hopping-OFDM (FFH-OFDM), and the like. The method and apparatus adaptively selects the multiplexing scheme and transmits/receives data using the selected multiplexing scheme, thereby improving reception performance of the packet data.

    摘要翻译: 提供了一种基于正交频分复用(OFDM)的无线通信系统中的发送/接收方法和装置,其中数据发射机根据传输分组的码率或无线的有效SNR自适应地选择复用方案 当发送分组数据信道时,对应的终端的信道。 自适应复用方案在概念上等于自适应地实现单一预编码的方案。 单一预编码复用包括正交频域域复用(OFCDM),快速傅里叶变换扩频OFDM(FFT-S-OFDM),快速跳频OFDM(FFH-OFDM)等。 该方法和装置自适应地选择复用方案,并使用选择的复用方案发送/接收数据,从而提高分组数据的接收性能。