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    Method for channel estimation in orthogonal frequency division multiplexing system and device thereof
    3.
    发明授权
    Method for channel estimation in orthogonal frequency division multiplexing system and device thereof 有权
    正交频分复用系统中的信道估计方法及其装置

    公开(公告)号：US07688907B2

    公开(公告)日：2010-03-30

    申请号：US11652758

    申请日：2007-01-12

    Applicant: Shujun Dang

    Inventor： Shujun Dang

    IPC: H04L27/28

    CPC classification number: H04L25/0236 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0216 ,  H04L25/022 ,  H04L25/0222 ,  H04L25/0234

    Abstract: A method for channel estimation in an Orthogonal Frequency Division Multiplexing (OFDM) system, including: a transmitter determining a distribution density of pilot OFDM symbols according to the maximum Doppler frequency shift supported by the system, and transmitting pilot OFDM symbols and data OFDM symbols based on the distribution density of the pilot OFDM symbols; a receiver estimating frequency-domain channel information of the data OFDM symbols according to the received pilot OFDM symbols. The invention solves the problem of a large performance loss at a high-delay channel and a system with rapidly varying channel. The invention offers a better performance of channel estimation while the channel environment is varying rapidly, enhances the performance of a high-delay channel, makes a data communication system more suitable to a changing environment and makes better performance to the practical channel estimation, so that the data transmission efficiency of the system is increased.

    Abstract translation: 一种在正交频分复用（OFDM）系统中进行信道估计的方法，包括：发射机根据系统支持的最大多普勒频移确定导频OFDM符号的分布密度，并发送导频OFDM符号和数据OFDM符号 关于导频OFDM符号的分布密度; 接收机根据所接收的导频OFDM符号来估计数据OFDM符号的频域信道信息。 本发明解决了高延迟信道和具有快速变化信道的系统的大的性能损失的问题。 本发明在信道环境变化迅速的同时提供了更好的信道估计性能，增强了高延迟信道的性能，使得数据通信系统更适合于不断变化的环境，并对实际的信道估计做出更好的性能，使得 提高了系统的数据传输效率。

    METHOD FOR OBTAINING LOG INFORMATION FROM NETWORK ELEMENT DEVICE BY NETWORK MANAGEMENT SERVER, A NETWORK ELEMENT DEVICE AND A NETWORK MANAGEMENT SERVER
    4.
    发明申请
    METHOD FOR OBTAINING LOG INFORMATION FROM NETWORK ELEMENT DEVICE BY NETWORK MANAGEMENT SERVER, A NETWORK ELEMENT DEVICE AND A NETWORK MANAGEMENT SERVER 审中-公开
    网络管理服务器，网络元素设备和网络管理服务器从网络元件设备获取日志信息的方法

    公开(公告)号：US20080086561A1

    公开(公告)日：2008-04-10

    申请号：US11926960

    申请日：2007-10-29

    Applicant: Shujun DANG ,  Li Yang ,  Yuehua Chen ,  Lan Zou

    Inventor： Shujun DANG ,  Li Yang ,  Yuehua Chen ,  Lan Zou

    IPC: G06F15/16

    CPC classification number: H04L41/069 ,  G06F11/3442 ,  H04L41/0213

    Abstract: A method for the network management server to get the log information from the network element device comprises: firstly, the network element device allocates a section of the memory resource as the log buffer, and stores the log information generated by the network element device in the log buffer; then, the network element device detects dynamically the residual capacity of the log buffer, and when the residual capacity of the log buffer is less than the special threshold, it notifies the network management server to fetch the log information. The present invention can avoid the loss of the log information of network element device to ensure the categoricalness of the log information.

    Abstract translation: 网络管理服务器从网元设备获取日志信息的方法包括：首先，网元设备分配一部分内存资源作为日志缓冲区，并将网元设备生成的日志信息存储在 日志缓冲区 网元设备动态检测日志缓冲区的剩余容量，当日志缓冲区的剩余容量小于特殊阈值时，通知网管服务器取出日志信息。 本发明可以避免网元设备日志信息的丢失，保证日志信息的分类。

    METHOD AND APPARATUS FOR DISCOVERING NETWORK SERVICE PROVIDER
    5.
    发明申请
    METHOD AND APPARATUS FOR DISCOVERING NETWORK SERVICE PROVIDER 有权
    发现网络服务提供商的方法和设备

    公开(公告)号：US20070286120A1

    公开(公告)日：2007-12-13

    申请号：US11845901

    申请日：2007-08-28

    Applicant: Shujun Dang

    Inventor： Shujun Dang

    IPC: H04Q7/00

    CPC classification number: H04L67/16 ,  H04L41/12 ,  H04W8/005 ,  H04W48/08 ,  H04W48/16 ,  H04W74/00

    Abstract: A method for discovering a network service provider, a network side transmitting apparatus and a network discovering apparatus for a user side device are disclosed. The method is used in a wireless communication network which includes a network access provider, a user side device and a network service provider. The method includes: issuing, by a network side, information that identifies a network access provider sharing mode; discovering the network service provider by the user side device in a manner corresponding to the information that identifies the network access provider sharing mode, when the user side device accesses the network. The present invention discovers a network service provider by incorporating different network access provider sharing modes into the existing wireless communication networks, and thus can utilize network resources effectively.

    Abstract translation: 公开了一种用于发现用户侧设备的网络服务提供商，网络侧发送装置和网络发现装置的方法。 该方法用于包括网络接入提供商，用户侧设备和网络服务提供商的无线通信网络中。 该方法包括：由网络侧发出识别网络接入提供商共享模式的信息; 当用户侧设备访问网络时，以与标识网络接入提供商共享模式的信息相对应的方式，由用户侧设备发现网络服务提供商。 本发明通过将不同的网络接入提供商共享模式结合到现有的无线通信网络中来发现网络服务提供商，从而可以有效地利用网络资源。

    Method and apparatus for discovering network service provider
    8.
    发明授权
    Method and apparatus for discovering network service provider 有权
    用于发现网络服务提供商的方法和装置

    公开(公告)号：US07929489B2

    公开(公告)日：2011-04-19

    申请号：US11845901

    申请日：2007-08-28

    Applicant: Shujun Dang

    Inventor： Shujun Dang

    IPC: H04L12/28

    CPC classification number: H04L67/16 ,  H04L41/12 ,  H04W8/005 ,  H04W48/08 ,  H04W48/16 ,  H04W74/00

    Abstract: A method for discovering a network service provider, a network side transmitting apparatus and a network discovering apparatus for a user side device are disclosed. The method is used in a wireless communication network which includes a network access provider, a user side device and a network service provider. The method includes: issuing, by a network side, information that identifies a network access provider sharing mode; discovering the network service provider by the user side device in a manner corresponding to the information that identifies the network access provider sharing mode, when the user side device accesses the network. The present invention discovers a network service provider by incorporating different network access provider sharing modes into the existing wireless communication networks, and thus can utilize network resources effectively.

    Abstract translation: 公开了一种用于发现用户侧设备的网络服务提供商，网络侧发送装置和网络发现装置的方法。 该方法用于包括网络接入提供商，用户侧设备和网络服务提供商的无线通信网络中。 该方法包括：由网络侧发出识别网络接入提供商共享模式的信息; 当用户侧设备访问网络时，以与标识网络接入提供商共享模式的信息相对应的方式，由用户侧设备发现网络服务提供商。 本发明通过将不同的网络接入提供商共享模式结合到现有的无线通信网络中来发现网络服务提供商，从而可以有效地利用网络资源。

    Method and apparatus for discovering network service providers
    9.
    发明授权
    Method and apparatus for discovering network service providers 有权
    用于发现网络服务提供商的方法和装置

    公开(公告)号：US07876708B2

    公开(公告)日：2011-01-25

    申请号：US11962899

    申请日：2007-12-21

    Applicant: Shujun Dang

    Inventor： Shujun Dang

    IPC: H04L12/28

    CPC classification number: H04L12/5691 ,  H04L67/16 ,  H04W8/18 ,  H04W48/08 ,  H04W48/16

    Abstract: The present invention discloses a method and a corresponding apparatus for discovering NSPs. The method includes: transmitting, by network-side, information about NSPs supported by the current NAP; transmitting, by the network-side, first change information about NSPs supported by the NAP at a fixed period; obtaining, by a CPE, the first change information about the NSPs supported by the NAP accessible at a current position when accessing a network; determining whether the first change information is consistent with stored change information about NSPs supported by the NAP, if it is, obtaining stored information about NSPs supported by the NAP, otherwise, obtaining information about NSPs supported by the NAP transmitted by the network-side; and adding the obtained information about the NSPs as information about available NSPs discovered. The present invention can reduce extra occupancy of air interface resources and effectively reduce time consumption in the process of network discovering and selecting.

    Abstract translation: 本发明公开了一种用于发现NSP的方法和相应的装置。 该方法包括：通过网络侧发送当前NAP支持的NSP信息; 由网络方转发固定时段，首先修改国家行动方案支持的NSP的信息; 通过CPE获取关于在访问网络时在当前位置可访问的NAP支持的NSP的第一改变信息; 确定所述第一改变信息是否与所述NAP支持的关于NSP的存储的改变信息一致，如果是，则获取所述NAP支持的NSP的存储信息，否则获取由所述网络侧发送的NAP支持的NSP信息; 并将获得的关于NSP的信息添加为所发现的可用NSP的信息。 本发明可以减少空中接口资源的额外占用，有效减少网络发现和选择过程中的时间消耗。

    Method, system and apparatus of realizing indicating resource of multicast and broadcast service (MBS)
    10.
    发明授权
    Method, system and apparatus of realizing indicating resource of multicast and broadcast service (MBS) 有权
    实现组播和广播业务指示资源的方法，系统和装置（MBS）

    公开(公告)号：US07869401B2

    公开(公告)日：2011-01-11

    申请号：US11742667

    申请日：2007-05-01

    Applicant: Shujun Dang ,  Yuehua Chen ,  Jianjun Wu

    Inventor： Shujun Dang ,  Yuehua Chen ,  Jianjun Wu

    IPC: H04Q7/00

    CPC classification number: H04W72/005

    Abstract: The present invention discloses a method, a system and apparatus of realizing indicating resource of MBS. The method comprises: a Down Link-MAP (DL-MAP) message sent by a Base Station (BS) carries resource information associated Multicast and Broadcast Service (MBS); receiving the DL-MAP message sent by BS, Mobile station (MS) judges whether the service information associated with MBS comprised in this message is identical to that reserved by the MS itself, if yes, the MS determines the physical channel resource occupied by MBS according to the resource information which is associated with MBS and carried in this message. The present invention also discloses another method of realizing indicating resource of MBS. The present invention solves the problem that the prior art cannot directly perform resource indication upon multicast service. Through the scheme of the present invention, position of the physical channel resource occupied by the MBS-MAP message corresponding to multicast service can be determined, and various specific positioning measures are provided thereof.

    Abstract translation: 本发明公开了一种实现MBS资源指示的方法，系统和装置。 该方法包括：由基站（BS）发送的下行链路MAP（DL-MAP）消息携带相关的多播和广播服务（MBS）的资源信息; 接收BS发送的DL-MAP消息，移动台（MS）判断与该消息中包含的MBS相关的业务信息是否与MS本身保留的业务信息相同，如果是，则MS确定MBS所占用的物​​理信道资源 根据与MBS相关联并在该消息中携带的资源信息。 本发明还公开了实现MBS资源的另一种方法。 本发明解决了现有技术不能在多播服务上直接执行资源指示的问题。 通过本发明的方案，可以确定与多播服务对应的MBS-MAP消息所占用的物​​理信道资源的位置，并提供各种具体的定位措施。

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