Apparatus and method for synchronizing channels in a W-CDMA communication system
    1.
    发明授权
    Apparatus and method for synchronizing channels in a W-CDMA communication system 有权
    一种在W-CDMA通信系统中同步信道的装置和方法

    公开(公告)号:US06741578B1

    公开(公告)日:2004-05-25

    申请号:US09562381

    申请日:2000-05-01

    IPC分类号: H04J1300

    摘要: A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.

    摘要翻译: 用于CDMA通信系统的同步(同步)码通信设备。 基站同步码发送装置包括主同步码发射机和辅同步码发射机。 主同步码发射器用于在传输帧中的第一位置处产生并发送主同步码。 主同步码用于在帧的起始点获取同步,并且帧等于扩展码的一个周期。 次同步码发射器用于在帧中的第二位置处产生并发送次同步码。 辅助同步码分配给基站组,一组到一组。 移动台同步码接收装置包括主同步码采集决定器和基站组判定器。 主同步码获取决定器用于获取在帧中的第一位置处接收到的主同步码,然后在帧的起始点获取同步。 在获取主同步码后,启用基站组决定器,接收在帧中第二个位置发送的辅助同步码,然后确定发送基站所属的基站组。

    Apparatus and method for synchronizing channels in a WCDMA communication system
    2.
    再颁专利
    Apparatus and method for synchronizing channels in a WCDMA communication system 有权
    用于在WCDMA通信系统中同步信道的装置和方法

    公开(公告)号:USRE42827E1

    公开(公告)日:2011-10-11

    申请号:US11440402

    申请日:2006-05-24

    IPC分类号: H04B7/216

    摘要: A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.

    摘要翻译: 用于CDMA通信系统的同步(同步)码通信设备。 基站同步码发送装置包括主同步码发射机和辅同步码发射机。 主同步码发射器用于在传输帧中的第一位置处产生并发送主同步码。 主同步码用于在帧的起始点获取同步,并且帧等于扩展码的一个周期。 次同步码发射器用于在帧中的第二位置处产生并发送次同步码。 辅助同步码分配给基站组,一组到一组。 移动台同步码接收装置包括主同步码采集决定器和基站组判定器。 主同步码获取决定器用于获取在帧中的第一位置处接收到的主同步码,然后在帧的起始点处获取同步。 在获取主同步码后,启用基站组决定器,接收在帧中第二个位置发送的辅助同步码,然后确定发送基站所属的基站组。

    Channel communication device and method for mobile communication system using transmission antenna diversity
    3.
    发明授权
    Channel communication device and method for mobile communication system using transmission antenna diversity 有权
    使用发射天线分集的移动通信系统的信道通信设备和方法

    公开(公告)号:US06766146B1

    公开(公告)日:2004-07-20

    申请号:US09378372

    申请日:1999-08-20

    IPC分类号: H04Q738

    CPC分类号: H04B7/0604

    摘要: A channel communication device and method for a mobile communication system using transmission antenna diversity. A base station alternatively transmits signals on a common channel via at least two antennas at first and second intervals. A mobile station estimates a time relationship between the alternatively switched common channel and a user channel and measures the power of the received signals corresponding to the first and second intervals. The mobile station selects an antenna having stronger power by comparing the power of the signal corresponding to the first interval with the power of the signal corresponding to the second interval, and informs the base station of the selected antenna. The base station transmits a dedicated channel via the selected antenna.

    摘要翻译: 一种使用发射天线分集的移动通信系统的信道通信装置和方法。 基站以第一和第二间隔经由至少两个天线在公共信道上交替地发送信号。 移动台估计交替切换的公共信道与用户信道之间的时间关系,并测量与第一和第二间隔对应的接收信号的功率。 移动站通过将与第一间隔相对应的信号的功率与对应于第二间隔的信号的功率进行比较来选择具有较强功率的天线,并且向基站通知所选择的天线。 基站通过所选择的天线发送专用信道。

    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system
    5.
    发明申请
    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system 审中-公开
    在OFDM通信系统中发送/接收导频信号的装置和方法

    公开(公告)号:US20050094550A1

    公开(公告)日:2005-05-05

    申请号:US10978814

    申请日:2004-11-01

    IPC分类号: H04J11/00 H04L27/26

    摘要: A radio communication system divides an entire frequency band into a plurality of subcarrier bands, forms a symbol with signals on the subcarrier bands, forms a frame with a plurality of symbols, transmits a pilot signal within symbols in a predetermined position of the frame, and transmits a data signal within symbols other than the symbols for transmitting the pilot signal. A transmitter allocates subcarriers through which the reference signal is transmitted, wherein the subcarriers are allocated to have an exclusive relation with subcarriers through which reference signals of other transmitters are transmitted, generates the pilot signal, performs an inverse fast Fourier transform (IFFT) on the pilot signal by applying an IFFT size which is less than or equal to an IFFT size applied to the data signal, and transmits the IFFT-processed reference signal to a receiver.

    摘要翻译: 无线电通信系统将整个频带划分为多个子载波频带,在子载波频带上形成具有信号的符号,形成具有多个符号的帧,在帧的预定位置的符号内发送导频信号,以及 在除了用于发送导频信号的符号之外的符号内发送数据信号。 发射机分配通过其发送参考信号的子载波,其中子载波被分配为与其他发射机的参考信号通过其发送的子载波具有排他关系,产生导频信号,在该载波上执行快速傅立叶逆变换(IFFT) 通过应用小于或等于应用于数据信号的IFFT尺寸的IFFT尺寸的IFFT尺寸的导频信号,并将IFFT处理的参考信号发送到接收机。

    Apparatus and method for transmitting/receiving a pilot signal for distinguishing a base station in a communication system using an OFDM scheme
    6.
    发明授权
    Apparatus and method for transmitting/receiving a pilot signal for distinguishing a base station in a communication system using an OFDM scheme 有权
    用于使用OFDM方案发送/接收用于区分通信系统中的基站的导频信号的装置和方法

    公开(公告)号:US07369531B2

    公开(公告)日:2008-05-06

    申请号:US10978794

    申请日:2004-11-01

    IPC分类号: H04J1/00 H04J11/00 H04B7/204

    摘要: A method for transmitting reference signals in a radio communication system in which a frequency band is divided into a plurality of sub-frequency bands. The reference signals are transmitted through at least one of the plurality of sub-frequency bands, and data signals are transmitted through the plurality of sub-frequency bands except for the at least one of the plurality of sub-frequency bands. The method includes the steps of: determining a reference signal pattern representing positions of the at least one of the plurality of sub-frequency bands through which the reference signals are transmitted in consideration of a preset time and a preset bandwidth; generating the reference signals using a PN code and a Walsh code; and transmitting the reference signals through the sub-frequency bands corresponding to the reference signal pattern.

    摘要翻译: 一种用于在将频带划分成多个子频带的无线通信系统中发送参考信号的方法。 参考信号通过多个子频带中的至少一个发送,并且除了多个子频带中的至少一个以外的多个子频带中发送数据信号。 该方法包括以下步骤:考虑预设时间和预置带宽,确定表示参考信号通过其发送的多个子频带中的至少一个的位置的参考信号模式; 使用PN码和沃尔什码生成参考信号; 以及通过与参考信号模式对应的子频带发送参考信号。

    Transmission time adjusting apparatus and method between RNC and UE in a CDMA communication system
    9.
    发明授权
    Transmission time adjusting apparatus and method between RNC and UE in a CDMA communication system 有权
    CDMA通信系统中RNC与UE之间的传输时间调整装置及方法

    公开(公告)号:US07209463B2

    公开(公告)日:2007-04-24

    申请号:US10183937

    申请日:2002-06-26

    IPC分类号: H04B7/216

    CPC分类号: H04W56/009 H04B7/2668

    摘要: A method of adjusting the transmission time of data in a CDMA communication system. A UE (User Equipment) measures the time difference between the received time of a downlink DPCH (Dedicated Physical Channel) and the transmitted time of an uplink DPCH and reports it to an RNC (Radio Network Controller). The RNC transmits transmission time adjustment information to a node B and the UE if the time difference is out of a predetermined range. The node B then adjusts the transmission time of the downlink DPCH according to the transmission time adjustment information and transmits the downlink DPCH at the adjusted time. The UE receives the downlink DPCH by adjusting a search time for the downlink DPCH according to the transmission time adjustment information.

    摘要翻译: 一种在CDMA通信系统中调整数据传输时间的方法。 UE(用户设备)测量下行链路DPCH(专用物理信道)的接收时间与上行链路DPCH的发送时间之间的时间差,并将其报告给RNC(无线网络控制器)。 如果时间差超出预定范围,则RNC向节点B和UE发送传输时间调整信息。 节点B然后根据传输时间调整信息调整下行链路DPCH的传输时间,并在调整时间发送下行链路DPCH。 UE通过根据传输时间调整信息调整下行链路DPCH的搜索时间来接收下行链路DPCH。

    Mobile communication apparatus including an antenna array and mobile communication method
    10.
    发明授权
    Mobile communication apparatus including an antenna array and mobile communication method 有权
    包括天线阵列和移动通信方法的移动通信装置

    公开(公告)号:US07206353B2

    公开(公告)日:2007-04-17

    申请号:US10225420

    申请日:2002-08-22

    CPC分类号: H04B7/0634 H04B7/086

    摘要: A mobile communication apparatus having an antenna array and a mobile communication method performed in the mobile communication apparatus, wherein the mobile communication apparatus includes a base station and mobile station, each having an antenna array. The mobile station measures the downlink characteristics of a channel for each antenna from a signal received from a base station, determines long-term information in which the correlation property of the channel for each antenna has been reflected from the measured downlink characteristics, transforms the long-term information into a feedback signal, and transmits the feedback signal to the base station. The base station receives the feedback signal, restores the long-term information from the received feedback signal, performs basis mapping and basis transformation on a dedicated physical channel signal using the restored long-term information, adds the basis-mapped and basis-transformed signal to each of pilot channel signals, and transmits the addition results to the mobile station.

    摘要翻译: 一种具有在移动通信装置中执行的天线阵列和移动通信方法的移动通信装置,其中移动通信装置包括基站和移动台,每个基站和移动台具有天线阵列。 移动台根据从基站接收到的信号测量每个天线的信道的下行链路特性,确定其中每个天线的信道的相关属性已经从测量的下行链路特性反映的长期信息, 将信息输入到反馈信号中,并将反馈信号发送到基站。 基站接收反馈信号,从接收到的反馈信号中恢复长期信息,使用恢复的长期信息对专用物理信道信号执行基础映射和基变换,将基准映射和基准变换信号 对每个导频信道信号,并将相加结果发送给移动台。