APPARATUS AND METHOD FOR MANAGING DORMANT STATE IN A WIRELESS PACKET DATA SYSTEM
    14.
    发明申请
    APPARATUS AND METHOD FOR MANAGING DORMANT STATE IN A WIRELESS PACKET DATA SYSTEM 有权
    用于在无线分组数据系统中管理多个状态的装置和方法

    公开(公告)号:US20080013492A1

    公开(公告)日:2008-01-17

    申请号:US11775736

    申请日:2007-07-10

    IPC分类号: H04Q7/00

    摘要: A wireless packet data system efficiently manages a location of a packet call in a radio environment. A mobile station transmits a location registration message to a target BSC when moving to the target BSC adjacent to a source BSC. Upon receipt of the location registration message, the target BSC transmits a location update message for updating a location of the mobile station to a centralized database. Upon receipt of the location update message, the centralized database updates dormant state information for the mobile station to connect the target BSC to the source BSC. The centralized database transmits a location update result message indicating complete update of the dormant state information to the target BSC.

    摘要翻译: 无线分组数据系统在无线电环境中有效地管理分组呼叫的位置。 当移动到与源BSC相邻的目标BSC时,移动台向目标BSC发送位置登记消息。 在接收到位置注册消息时,目标BSC向中央数据库发送用于更新移动台的位置的位置更新消息。 在接收到位置更新消息时,集中式数据库更新移动台的休眠状态信息,以将目标BSC连接到源BSC。 集中式数据库向目标BSC发送指示休眠状态信息的完全更新的位置更新结果消息。

    System and method for fast network re-entry in a broadband wireless access communication system
    15.
    发明授权
    System and method for fast network re-entry in a broadband wireless access communication system 有权
    宽带无线接入通信系统中快速网络重入的系统和方法

    公开(公告)号:US07302264B2

    公开(公告)日:2007-11-27

    申请号:US11149697

    申请日:2005-06-10

    IPC分类号: H04Q7/20

    摘要: A system and method for fast network re-entry in a broadband wireless access communication system. A mobile station transmits a first message requiring fast network re-entry to a base station and performs the fast network re-entry together with the base station when receiving a second message approving the fast network re-entry from the base station. The base station receives the first message, authenticates the first message using final session information of the mobile station that is previously stored in the base station, transmits the second message to the mobile station when succeeding in authentication of the first message, and performs the fast network re-entry together with the mobile station.

    摘要翻译: 一种用于宽带无线接入通信系统中快速网络重入的系统和方法。 当从基站接收到批准从快速网络重新进入的第二消息时,移动台向基站发送要求快速网络重入的第一消息,并与基站一起执行快速网络重新进入。 基站接收第一消息,使用先前存储在基站中的移动台的最终会话信息来认证第一消息,当成功认证第一消息时将第二消息发送给移动台,并且执行快速 与移动台一起重新进入网络。

    Lead-angle control method and device for operating permanent magnet synchronous motor in flux weakening regions
    16.
    发明授权
    Lead-angle control method and device for operating permanent magnet synchronous motor in flux weakening regions 有权
    永磁同步电动机在磁通弱化区域中的前角控制方法及装置

    公开(公告)号:US07161325B2

    公开(公告)日:2007-01-09

    申请号:US11266385

    申请日:2005-11-04

    IPC分类号: H02P21/14 H02P21/00

    CPC分类号: H02P21/06 H02P25/024

    摘要: A lead-angle control device according to the present invention includes: a space voltage vector controller calculating effective vector application times necessary for obtaining output voltage vectors of an inverter from stationary-coordinate-system instruction voltage components; a lead-angle compensator comparing the sum of the effective vector application times with a sampling period, and generating lead-angle compensation values; a speed controller generating an instruction current for compensating an error caused by a difference between an instruction speed and a current speed; an instruction current generator which generates a rotating-coordinate-system instruction current component by extracting a lead-angle component at a point where maximum torque-per-ampere can be obtained from the magnitude of the instruction current and performing a mathematical calculation on the magnitude of the instruction current and a lead-angle component; and an instruction voltage generator generating a stationary-coordinate-system instruction voltage component from the rotating-coordinate-system instruction current component.

    摘要翻译: 根据本发明的前角控制装置包括:空间电压矢量控制器,从静止坐标系指令电压分量计算获得逆变器的输出电压矢量所需的有效矢量应用次数; 将有效矢量施加时间的总和与采样周期进行比较并产生前角补偿值的前角补偿器; 速度控制器,产生用于补偿由指令速度和当前速度之间的差引起的误差的指令电流; 指令电流发生器,其通过从指令电流的大小获得最大每立方厘米转矩的点,通过提取旋转坐标系指令电流分量来产生旋转坐标系指令电流分量,并对该幅度进行数学计算 的指令电流和一个引导角分量; 以及从旋转坐标系指令电流分量产生静止坐标系指令电压分量的指令电压发生器。

    Apparatus and method for managing dormant state in a wireless packet data system
    17.
    发明授权
    Apparatus and method for managing dormant state in a wireless packet data system 失效
    用于在无线分组数据系统中管理休眠状态的装置和方法

    公开(公告)号:US06950415B2

    公开(公告)日:2005-09-27

    申请号:US09933107

    申请日:2001-08-20

    CPC分类号: H04W76/27

    摘要: Disclosed are an apparatus for and a method of managing the location of a packet call in the wireless environment of a wireless packet data system. A dormant-state mobile station management is carried out by registering call information in a dormant state database in response to an initial request for a packet data service, registering dormant state information in a pointer lookup table, and updating location information of a mobile station entering a dormant state, based on the dormant state information, in response to a message received from the mobile station, or resuming the packet data service. In accordance with the invention, it is possible to reduce the connection time and load required to resume a call establishment associated with the mobile station maintained in a dormant state.

    摘要翻译: 公开了一种在无线分组数据系统的无线环境中管理分组呼叫的位置的装置和方法。 休眠状态移动台管理是通过响应于对分组数据业务的初始请求,在休眠状态数据库中注册呼叫信息,在指针查找表中登记休眠状态信息,并更新移动台进入的位置信息来执行休眠状态移动台管理 休眠状态,基于休眠状态信息,响应于从移动站接收到的消息,或恢复分组数据服务。 根据本发明,可以减少恢复与保持在休眠状态的移动台相关联的呼叫建立所需的连接时间和负载。

    Call setup method for providing push-to-talk service in a cellular mobile telecommunication system
    18.
    发明申请
    Call setup method for providing push-to-talk service in a cellular mobile telecommunication system 审中-公开
    用于在蜂窝移动电信系统中提供一键通服务的呼叫建立方法

    公开(公告)号:US20050078627A1

    公开(公告)日:2005-04-14

    申请号:US10961061

    申请日:2004-10-12

    IPC分类号: H04W84/08 H04Q7/00 H04L12/66

    CPC分类号: H04W84/08

    摘要: Disclosed is a method for setting up a call of a push to talk (PTT) service in an access network of a cellular mobile telecommunication system in a system comprising a user agent (UA) capable of performing packet data communication, a cellular mobile telecommunication system capable of providing the UA with a packet data service, and a PTT server connected to the cellular mobile telecommunication system and capable of providing a PTT service with packet data. The method comprises the steps of creating a short data burst (SDB)-type PTT request message as a data burst record when the UA is paged and configuring a data base message (DBM) in such a manner that it includes the created SDB, inserting it into a general page message (GPM), and transmitting it via a predetermined forward channel.

    摘要翻译: 公开了一种用于在包括能够执行分组数据通信的用户代理(UA)的系统中的蜂窝移动电信系统的接入网络中建立一键通(PTT)业务的呼叫的方法,蜂窝移动电信系统 能够向UA提供分组数据服务,以及连接到蜂窝移动电信系统并能够向PTT服务提供分组数据的PTT服务器。 该方法包括以下步骤:当UA被寻呼时,创建短数据突发(SDB)型PTT请求消息作为数据突发记录,并且以这样的方式配置数据库消息(DBM),即包括创建的SDB,插入 它变成通用寻呼消息(GPM),并且经由预定的前向信道发送它。

    Access network selection apparatus and method in a heterogeneous system
    19.
    发明申请
    Access network selection apparatus and method in a heterogeneous system 审中-公开
    异构系统中的接入网络选择装置和方法

    公开(公告)号:US20050070280A1

    公开(公告)日:2005-03-31

    申请号:US10948201

    申请日:2004-09-24

    CPC分类号: H04W48/18 H04W88/06

    摘要: An apparatus and method for connecting to one of different types of access networks in a heterogeneous network system in which the access networks overlap each other. The apparatus and method include attempting to connect to one of said one or more access networks according to a preset priority and receiving a communication service through the access network when a connection to the access network is successful; and attempting to connect to an access network having a next priority according to the preset priority when the connection to the access network is unsuccessful.

    摘要翻译: 一种用于连接到其中接入网络彼此重叠的异构网络系统中的不同类型的接入网络之一的装置和方法。 所述装置和方法包括:当与所述接入网络的连接成功时,根据预设优先级尝试连接到所述一个或多个接入网络之一并通过所述接入网络接收通信服务; 并且当与接入网络的连接不成功时,尝试根据预设优先级连接到具有下一优先级的接入网络。