Communication system with automatic handoff
    1.
    发明授权
    Communication system with automatic handoff 失效
    具有自动切换功能的通讯系统

    公开(公告)号:US5901226A

    公开(公告)日:1999-05-04

    申请号:US777432

    申请日:1996-12-30

    摘要: A method for organizing a communication system with automatic handoff. The method includes steps of: (i) sending a message from a first remote unit to a monitoring site during a specific time slot within a frame of time slots, wherein the first remote unit has a unique identification code and the message includes the unique identification code from the first remote unit; (ii) relaying the message including the identification code from the monitoring site to a central authority during a reserved time slot within the frame, the reserved time slot reserved for the relaying step; (iii) transmitting an acknowledgment message from the central authority to the monitoring site, wherein the monitoring site is determined from an updated lookup table of communications links between monitoring sites and remote units, during a time slot reserved for the acknowledgment message; and (iv) retransmitting the acknowledgment message from the monitoring site to the remote unit.

    摘要翻译: 一种用于组织具有自动切换的通信系统的方法。 该方法包括以下步骤:(i)在时隙的帧内的特定时隙期间将消息从第一远程单元发送到监视站点,其中第一远程单元具有唯一的标识码,并且该消息包括唯一标识符 来自第一遥控单元的代码; (ii)在所述帧内的保留时隙期间将包括所述识别码的所述消息从所述监视站点中继到所述中央机构,所述保留时隙为所述中继步骤保留; (iii)从所述中央机构发送确认消息到所述监视站点,其中,在为所述确认消息保留的时隙期间,从监视站点和远程单元之间的通信链路的更新查找表确定所述监视站点; 以及(iv)从所述监视站点向所述远程单元重传所述确认消息。

    PROVIDING SERVICE IN A SATELLITE COMMUNICATIONS SYSTEM TO DISADVANTAGED TERMINALS
    3.
    发明申请
    PROVIDING SERVICE IN A SATELLITE COMMUNICATIONS SYSTEM TO DISADVANTAGED TERMINALS 有权
    在卫星通信系统中为不同的终端提供服务

    公开(公告)号:US20100039983A1

    公开(公告)日:2010-02-18

    申请号:US11933637

    申请日:2007-11-01

    IPC分类号: H04B7/185 H04W72/04

    CPC分类号: H04B7/18539

    摘要: A base station (26) provides service in a satellite communications (SATCOM) system (22) to a terminal (24). The SATCOM system (22) operates in accordance with a first standard (43), and the terminal (24) is unable to communicate in accordance with the first standard (43). Methodology entails receiving, at a SATCOM resource controller (32), a request (62) for a satellite resource (46) from the base station (26). The satellite resource (46) is allocated to the base station (26) and the controller (32) sends a message (58) with the allocated satellite resource (46). The base station (26) applies a second standard (48), defining a specific set of functional and performance characteristics, to the satellite resource (46). The terminal (24) is enabled to perform satellite communications in accordance with the second standard (48) using the satellite resource (46).

    摘要翻译: 基站(26)在卫星通信(SATCOM)系统(22)中向终端(24)提供服务。 SATCOM系统(22)根据第一标准(43)操作,并且终端(24)不能根据第一标准(43)进行通信。 方法学需要在SATCOM资源控制器(32)处从基站(26)接收用于卫星资源(46)的请求(62)。 卫星资源(46)被分配给基站(26),控制器(32)向所分配的卫星资源(46)发送消息(58)。 基站(26)向卫星资源(46)应用定义一组功能和性能特征的第二标准(48)。 终端(24)能够使用卫星资源(46)根据第二标准(48)执行卫星通信。

    Random access slot selection in a communications system
    4.
    发明授权
    Random access slot selection in a communications system 有权
    通信系统中的随机接入时隙选择

    公开(公告)号:US08098645B2

    公开(公告)日:2012-01-17

    申请号:US12035055

    申请日:2008-02-21

    IPC分类号: H04B7/212

    CPC分类号: H04L12/413 H04W74/0866

    摘要: A communications system (20) includes a resource controller (22) and a terminal (24) in communication with the resource controller (22). Periodically, the resource controller (22) sends a service announcement (46) that identifies a set (50) of timeslots (52) within a communication resource (40) configured for random access within a future frame (42). The terminal (24) ascertains a burst characteristic (118) of a message (54) to be sent from the terminal (24) and generates a random access parameter (128). The terminal (24) selects one of the timeslots (52) from the set (50) in accordance with the random access parameter (128), the timeslot exhibiting a burst type (62) corresponding to the burst characteristic (118) of the message (54). The terminal (24) transmits the message (54) in the selected timeslot (52).

    摘要翻译: 通信系统(20)包括与资源控制器(22)通信的资源控制器(22)和终端(24)。 周期性地,资源控制器(22)发送服务通知(46),其在未设置的帧(42)内为随机接入配置的通信资源(40)中识别时隙(52)的集合(50)。 终端(24)确定要从终端(24)发送的消息(54)的突发特征(118)并生成随机接入参数(128)。 终端(24)根据随机访问参数(128)从集合(50)中选择时隙(52)中的一个,所述时隙表现出对应于消息的突发特征(118)的突发类型(62) (54)。 终端(24)在所选择的时隙(52)中发送消息(54)。

    Providing service in a satellite communications system to disadvantaged terminals
    5.
    发明授权
    Providing service in a satellite communications system to disadvantaged terminals 有权
    向处于不利地位的终端提供卫星通信系统服务

    公开(公告)号:US07835693B2

    公开(公告)日:2010-11-16

    申请号:US11933637

    申请日:2007-11-01

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18539

    摘要: A base station (26) provides service in a satellite communications (SATCOM) system (22) to a terminal (24). The SATCOM system (22) operates in accordance with a first standard (43), and the terminal (24) is unable to communicate in accordance with the first standard (43). Methodology entails receiving, at a SATCOM resource controller (32), a request (62) for a satellite resource (46) from the base station (26). The satellite resource (46) is allocated to the base station (26) and the controller (32) sends a message (58) with the allocated satellite resource (46). The base station (26) applies a second standard (48), defining a specific set of functional and performance characteristics, to the satellite resource (46). The terminal (24) is enabled to perform satellite communications in accordance with the second standard (48) using the satellite resource (46).

    摘要翻译: 基站(26)在卫星通信(SATCOM)系统(22)中向终端(24)提供服务。 SATCOM系统(22)根据第一标准(43)操作,并且终端(24)不能根据第一标准(43)进行通信。 方法学需要在SATCOM资源控制器(32)处从基站(26)接收用于卫星资源(46)的请求(62)。 卫星资源(46)被分配给基站(26),并且控制器(32)向所分配的卫星资源(46)发送消息(58)。 基站(26)向卫星资源(46)应用定义一组功能和性能特征的第二标准(48)。 终端(24)能够使用卫星资源(46)根据第二标准(48)执行卫星通信。

    RANDOM ACCESS SLOT SELECTION IN A COMMUNICATIONS SYSTEM
    6.
    发明申请
    RANDOM ACCESS SLOT SELECTION IN A COMMUNICATIONS SYSTEM 有权
    通信系统中的随机访问选择

    公开(公告)号:US20090213782A1

    公开(公告)日:2009-08-27

    申请号:US12035055

    申请日:2008-02-21

    IPC分类号: H04B7/212

    CPC分类号: H04L12/413 H04W74/0866

    摘要: A communications system (20) includes a resource controller (22) and a terminal (24) in communication with the resource controller (22). Periodically, the resource controller (22) sends a service announcement (46) that identifies a set (50) of timeslots (52) within a communication resource (40) configured for random access within a future frame (42). The terminal (24) ascertains a burst characteristic (118) of a message (54) to be sent from the terminal (24) and generates a random access parameter (128). The terminal (24) selects one of the timeslots (52) from the set (50) in accordance with the random access parameter (128), the timeslot exhibiting a burst type (62) corresponding to the burst characteristic (118) of the message (54). The terminal (24) transmits the message (54) in the selected timeslot (52).

    摘要翻译: 通信系统(20)包括与资源控制器(22)通信的资源控制器(22)和终端(24)。 周期性地,资源控制器(22)发送服务通知(46),其在未设置的帧(42)内为随机接入配置的通信资源(40)中识别时隙(52)的集合(50)。 终端(24)确定要从终端(24)发送的消息(54)的突发特征(118)并生成随机接入参数(128)。 终端(24)根据随机访问参数(128)从集合(50)中选择时隙(52)中的一个,所述时隙表现出对应于消息的突发特征(118)的突发类型(62) (54)。 终端(24)在所选择的时隙(52)中发送消息(54)。