Receiver and receiving method for scalable bandwith
    11.
    发明授权
    Receiver and receiving method for scalable bandwith 有权
    用于可扩展带宽的接收和接收方法

    公开(公告)号:US08340219B2

    公开(公告)日:2012-12-25

    申请号:US12445234

    申请日:2007-10-10

    IPC分类号: H04L27/00

    摘要: Provided are a receiver and a receiving method for a scalable bandwidth in a mobile station of an Orthogonal Frequency Division Multiplexing (OFDM) system. The receiving method includes the steps of: (a) filtering a received RF signal; (b) oscillating a frequency according to a center frequency control signal to output a local oscillation frequency; (c) down-converting the filtered RF signal by using the local oscillation frequency; (d) scalable-filtering the down-converted signal while adjusting a bandwidth according to a bandwidth control signal; (e) controlling gain of the scalable-filtered signal; (f) converting the gain-controlled analog signal into a digital signal by using a sampling frequency matching with a corresponding bandwidth according to an ADC control signal; and (g) demodulating the converted digital signal, outputting the center frequency control signal, the bandwidth control signal, and the ADC control signal according to control information received from an upper layer.

    摘要翻译: 提供了一种用于正交频分复用(OFDM)系统的移动台中的可扩展带宽的接收机和接收方法。 接收方法包括以下步骤:(a)对接收到的RF信号进行滤波; (b)根据中心频率控制信号振荡频率以输出本地振荡频率; (c)使用本地振荡频率对滤波的RF信号进行下变频; (d)在根据带宽控制信号调整带宽的同时可缩放滤波下变频信号; (e)控制所述可缩放滤波信号的增益; (f)通过使用根据ADC控制信号的与相应带宽匹配的采样频率将增益控制模拟信号转换成数字信号; 和(g)根据从上层接收到的控制信息解调转换的数字信号,输出中心频率控制信号,带宽控制信号和ADC控制信号。

    CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE
    15.
    发明申请
    CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE 有权
    小区搜索方法,前向链路帧传输方法,使用它们的装置和前向链路帧结构

    公开(公告)号:US20090219882A1

    公开(公告)日:2009-09-03

    申请号:US12093284

    申请日:2006-11-10

    IPC分类号: H04W72/04 H04J11/00 H04K1/00

    摘要: Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure. The cell search apparatus includes a sync acquirer acquiring synchronization of sync channel symbols using a sync channel of a forward link, and a group detector detecting at least one hopping codeword element belonging to a hopping codeword of a target cell from a forward link signal containing sync channel symbols sequence-hopped using a hopping codeword corresponding to a code group to which a scrambling code of each cell belongs based on the acquired synchronization, and detecting a code group of the target cell based on the detected hopping codeword element, wherein the hopping codewords are orthogonal to a cyclic shift operation. Accordingly, a cell search time and the complexity of the cell search can be reduced.

    摘要翻译: 提供了小区搜索方法,前向链路帧发送方法,使用该方法的装置和前向链路帧结构。 小区搜索装置包括使用前向链路的同步信道获取同步信道符号的同步的同步获取器,以及从包含同步的前向链路信号检测属于目标小区的跳频码字的至少一个跳频码字元素的组检测器 基于所获取的同步,使用与每个小区的扰码对应的码组对应的跳频码字进行序列跳频,基于检测到的跳频码字元素检测目标小区的码组,其中跳频码字 与循环移位操作正交。 因此,可以减少小区搜索时间和小区搜索的复杂度。

    APPARATUS FOR GENERATING DOWN LINK SIGNAL, AND METHOD AND APPARATUS FOR CELL SEARCH IN CELLULAR SYSTEM
    17.
    发明申请
    APPARATUS FOR GENERATING DOWN LINK SIGNAL, AND METHOD AND APPARATUS FOR CELL SEARCH IN CELLULAR SYSTEM 有权
    用于生成下行链路信号的装置,以及在细胞系统中细胞搜索的方法和装置

    公开(公告)号:US20090161652A1

    公开(公告)日:2009-06-25

    申请号:US12159946

    申请日:2007-05-25

    IPC分类号: H04J3/06 H04L27/28

    摘要: The invention provides a method of generating a downlink signal and searching a cell on the basis of the downlink signal in an OFDM-based cellular system. The downlink signal includes a plurality of synchronization blocks each having a plurality of sub-frames, and a synchronization pattern composed of a combination of a cell group identification code for identifying a cell group and a frame synchronization identification code for indicating a frame start point is generated in each of the synchronization blocks. Different frame synchronization identification codes are allocated to the synchronization blocks.

    摘要翻译: 本发明提供了一种在基于OFDM的蜂窝系统中基于下行链路信号产生下行链路信号和搜索小区的方法。 下行链路信号包括多个具有多个子帧的同步块,并且由用于识别小区组的小区组识别码和用于指示帧起始点的帧同步识别码的组合构成的同步模式是 在每个同步块中产生。 不同的帧同步识别码被分配给同步块。

    CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE
    18.
    发明申请
    CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE 有权
    小区搜索方法,前向链路帧传输方法,使用它们的装置和前向链路帧结构

    公开(公告)号:US20090080385A1

    公开(公告)日:2009-03-26

    申请号:US12093415

    申请日:2006-11-10

    IPC分类号: H04J3/06 H04W56/00

    摘要: Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure in an Orthogonal Frequency Division Multiplexing cellular system, wherein the time it takes to perform a cell search and the complexity of the cell search can be reduced. The cell search apparatus includes a sync acquirer which receives a signal according to a forward link frame comprising a plurality of sync channel symbols each having different intervals between the adjacent sync channel symbols and achieves synchronization of the sync channel symbols using a sync channel of the received signal, and a boundary detector which detects a frame boundary using an interval pattern between the sync channel symbols, based on the achieved synchronization.

    摘要翻译: 提供了正交频分复用蜂窝系统中的小区搜索方法,前向链路帧发送方法,使用该方法的装置和前向链路帧结构,其中执行小区搜索所需的时间和 可以减少小区搜索。 小区搜索装置包括:同步获取器,其根据包括多个同步信道符号的前向链路帧接收信号,每个同步信道符号在相邻同步信道符号之间具有不同的间隔,并且使用所接收的同步信道符号的同步信道实现同步信道符号的同步 信号,以及边界检测器,其基于所实现的同步,使用同步信道符号之间的间隔模式来检测帧边界。

    Base Station Transmitter For Mobile Telecommunication System, Method For That System
    19.
    发明申请
    Base Station Transmitter For Mobile Telecommunication System, Method For That System 失效
    用于移动通信系统的基站发射机,该系统的方法

    公开(公告)号:US20080232437A1

    公开(公告)日:2008-09-25

    申请号:US12064767

    申请日:2006-08-24

    IPC分类号: H04B1/707

    CPC分类号: H04B7/0678 H04J13/10

    摘要: The present invention relates to a transmit diversity method of a mobile communication system and a base station transmitting apparatus using the same. A first code and a second code that is diversity-encoded from the first code are generated, and transmit symbols are spread with the first code and the second code. A first transmit symbol spread with the first code and a second transmit symbol spread with the second code are mapped to symbols in frequency and time domains in a frame and transmitted through antennas. Therefore, various diversity techniques can be provided to the mobile communication system, and the diversity technique is not restricted to symbols transmitted to the same mobile station and can also be applied to a 1-bit channel.

    摘要翻译: 本发明涉及一种移动通信系统的发射分集方法及其使用的基站发送装置。 生成从第一代码分集编码的第一代码和第二代码,并且利用第一代码和第二代码扩展发送符号。 利用第一码扩展的第一发送符号和用第二码扩展的第二发送符号被映射到帧中的频域和时域中的符号,并通过天线发送。 因此,可以向移动通信系统提供各种分集技术,并且分集技术不限于发送到同一移动台的符号,并且也可以应用于1比特信道。