Synchronizing data transmission over wireless networks
    11.
    发明授权
    Synchronizing data transmission over wireless networks 有权
    通过无线网络同步数据传输

    公开(公告)号:US08223807B2

    公开(公告)日:2012-07-17

    申请号:US12372433

    申请日:2009-02-17

    IPC分类号: H04W56/00

    摘要: Techniques for providing an uninterrupted data stream to a mobile node are disclosed. In a first technique, a time stamp is inserted at some point in the wireless network and the time stamp is used along with a tolerance value to determine when to transmit a packet in a data stream. By transmitting the packets at the same adjusted time, transmission to mobile nodes is synchronized. A second technique uses duplication of data stream content to avoid an interruption in the data stream at a mobile node. A third technique uses an error correcting code to avoid interruption of the data stream at a mobile node. A fourth technique uses a sequence number inserted into packets in the data stream at the content server to synchronize transmission to mobile nodes.

    摘要翻译: 公开了用于向移动节点提供不间断数据流的技术。 在第一技术中,在无线网络中的某一点插入时间标记,并且使用时间戳以及公差值来确定何时在数据流中发送分组。 通过在相同的调整时间发送分组,对移动节点的传输是同步的。 第二种技术使用数据流内容的复制来避免移动节点处数据流的中断。 第三种技术使用纠错码来避免移动节点处数据流的中断。 第四种技术使用插入在内容服务器上的数据流中的分组中的序列号来同步传输到移动节点。

    METHODS AND SYSTEMS FOR PROVIDING IMPROVED HANDOFFS IN A WIRELESS COMMUNICATION SYSTEM
    12.
    发明申请
    METHODS AND SYSTEMS FOR PROVIDING IMPROVED HANDOFFS IN A WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中提供改进的手段的方法和系统

    公开(公告)号:US20120020235A1

    公开(公告)日:2012-01-26

    申请号:US13251792

    申请日:2011-10-03

    IPC分类号: H04W36/00 H04W24/00 H04W60/00

    摘要: Methods and systems are provided for using a PDSN in a wireless communication network that includes multiple IP addresses and multiple corresponding physical interfaces. Through the use of multiple IP addresses and interfaces, the throughput of the PDSN may be substantially increased. Additionally, the multiple IP addresses and interfaces may be used to provide redundancy in order to protect against software or hardware failures. According to the methods and systems of the invention, moreover, the risk of internal hard handoffs resulting from the use of a PDSN having multiple IP addresses and interfaces is eliminated or at least substantially reduced

    摘要翻译: 提供了在包括多个IP地址和多个对应的物理接口的无线通信网络中使用PDSN的方法和系统。 通过使用多个IP地址和接口,可以显着增加PDSN的吞吐量。 此外,可以使用多个IP地址和接口来提供冗余以防止软件或硬件故障。 此外,根据本发明的方法和系统,由于使用具有多个IP地址和接口的PDSN而导致的内部硬切换的风险被消除或至少大大降低

    Methods and systems for providing improved handoffs in a wireless communication system
    13.
    发明授权
    Methods and systems for providing improved handoffs in a wireless communication system 有权
    用于在无线通信系统中提供改进的切换的方法和系统

    公开(公告)号:US08031671B2

    公开(公告)日:2011-10-04

    申请号:US10893846

    申请日:2004-07-19

    IPC分类号: H04W4/00

    摘要: Methods and systems are provided for using a PDSN in a wireless communication network that includes multiple IP addresses and multiple corresponding physical interfaces. Through the use of multiple IP addresses and interfaces, the throughput of the PDSN may be substantially increased. Additionally, the multiple IP addresses and interfaces may be used to provide redundancy in order to protect against software or hardware failures. According to the methods and systems of the invention, moreover, the risk of internal hard handoffs resulting from the use of a PDSN having multiple IP addresses and interfaces is eliminated or at least substantially reduced.

    摘要翻译: 提供了在包括多个IP地址和多个对应的物理接口的无线通信网络中使用PDSN的方法和系统。 通过使用多个IP地址和接口,可以显着增加PDSN的吞吐量。 此外,可以使用多个IP地址和接口来提供冗余以防止软件或硬件故障。 此外,根据本发明的方法和系统,消除或至少大大减少了使用具有多个IP地址和接口的PDSN所导致的内部硬切换的风险。

    System and method for collapsed subscriber management and call control
    14.
    发明申请
    System and method for collapsed subscriber management and call control 有权
    用户管理和呼叫控制的系统和方法

    公开(公告)号:US20080062985A1

    公开(公告)日:2008-03-13

    申请号:US11517883

    申请日:2006-09-08

    IPC分类号: H04L12/56

    摘要: Systems and methods for integrating subscriber management and call control functionalities in a packet data network are provided. Subscriber management services include things such as tracking usage for billing, providing account information, and authorization of resources to a subscriber or user. Call control functionality includes setting up Session Initiation Protocol (SIP) call sessions for the exchange of data. SIP functionality is provided by a SIP server and subscriber management is provided by a Network Access Server (NAS), where the SIP functionality and NAS functionality are implemented on the same device. The combined device can maintain at least one database that maps information between the functionalities, so both functionalities may access or be alerted to the other's information.

    摘要翻译: 提供了在分组数据网络中集成用户管理和呼叫控制功能的系统和方法。 用户管理服务包括跟踪用于账单的用途,向用户或用户提供帐户信息和资源授权等。 呼叫控制功能包括建立用于数据交换的会话发起协议(SIP)呼叫会话。 SIP功能由SIP服务器提供,用户管理由网络接入服务器(NAS)提供,其中SIP功能和NAS功能在同一设备上实现。 组合的设备可以维护至少一个在功能之间映射信息的数据库,因此两个功能可以访问或者被提醒对方的信息。

    Globally synchronized timestamp value counter
    15.
    发明申请
    Globally synchronized timestamp value counter 有权
    全局同步时间戳值计数器

    公开(公告)号:US20080294926A1

    公开(公告)日:2008-11-27

    申请号:US11804821

    申请日:2007-05-21

    IPC分类号: G06F1/00

    摘要: The present invention relates to a synchronized timestamp mechanism in a packet processing system. This synchronized timestamp mechanism provides a globally synchronized counter value so counters located on separate packet processing cards can be synchronized. The synchronizing of these packet processing cards provides tracking of how long it takes for packets to be processed, provides the ability to generate packet headers that include sequence numbers for robust header compression, and allows the use of encryption protocols without a time reference signal. The synchronization is provided by sending the cards with counter value information and this information can be used to update the card's internal counter value information so that the card is synchronized with other cards.

    摘要翻译: 本发明涉及分组处理系统中的同步时间戳机制。 该同步时间戳机制提供全局同步的计数器值,因此可以同步位于单独的数据包处理卡上的计数器。 这些分组处理卡的同步提供对要处理分组所需的时间的跟踪,提供生成包含用于鲁棒报头压缩的序列号的分组报头的能力,并且允许使用加密协议而没有时间参考信号。 通过发送具有计数器值信息的卡来提供同步,并且该信息可以用于更新卡的内部计数器值信息,使得卡与其他卡同步。

    Coordination and control of data streams that terminate at different
termination units
    16.
    发明授权
    Coordination and control of data streams that terminate at different termination units 失效
    协调和控制在不同终端单元终止的数据流

    公开(公告)号:US5878040A

    公开(公告)日:1999-03-02

    申请号:US918817

    申请日:1997-08-26

    IPC分类号: H04L29/06 H04J3/12 H04J3/24

    摘要: A method for coordinating and controlling multiple data streams representing a data transmission session that terminate in different termination units (such as network access servers). The data streams are transmitted over two or more links, collectively forming a "bundle". The termination units are linked together preferably over a local area network. One of the termination units that receives a data stream is designated as the termination unit to receive and reconstruct the call. The designated termination unit is the "owner" of the bundle. The termination unit broadcasts an advertisement consisting of a bundle mapping update packet software structure with an identification header to alert the other termination units that it is to reconstruct the call. The identification header in the advertisement notifies the other termination units that if they should receive a portion of the data stream in the bundle, they should forward their packets of data to the designated termination unit. The sharing of bundle information between the termination units gives a great deal of flexibility in the design and type of termination units that may be employed.

    摘要翻译: 用于协调和控制表示以不同终端单元(例如网络接入服务器)终止的数据传输会话的多个数据流的方法。 数据流通过两个或多个链路传输,共同形成“捆绑”。 终端单元优选地通过局域网连接在一起。 接收数据流的终端单元之一被指定为接收和重构呼叫的终止单元。 指定的终端单元是捆绑的“所有者”。 终端单元广播包括具有标识头的分组映射更新分组软件结构的广告,以向其他终端单元通知其将重建呼叫。 广告中的识别标头通知其他终端单元,如果它们应该接收到包中的数据流的一部分,则它们应将其数据包转发到指定的终端单元。 终端单元之间的捆绑信息的共享在可以使用的终端单元的设计和类型方面给出了很大的灵活性。

    Methods and systems for providing improved handoffs in a wireless communication system
    18.
    发明授权
    Methods and systems for providing improved handoffs in a wireless communication system 有权
    用于在无线通信系统中提供改进的切换的方法和系统

    公开(公告)号:US08249025B2

    公开(公告)日:2012-08-21

    申请号:US13251792

    申请日:2011-10-03

    IPC分类号: H04W4/00

    摘要: Methods and systems are provided for using a PDSN in a wireless communication network that includes multiple IP addresses and multiple corresponding physical interfaces. Through the use of multiple IP addresses and interfaces, the throughput of the PDSN may be substantially increased. Additionally, the multiple IP addresses and interfaces may be used to provide redundancy in order to protect against software or hardware failures. According to the methods and systems of the invention, moreover, the risk of internal hard handoffs resulting from the use of a PDSN having multiple IP addresses and interfaces is eliminated or at least substantially reduced.

    摘要翻译: 提供了在包括多个IP地址和多个对应的物理接口的无线通信网络中使用PDSN的方法和系统。 通过使用多个IP地址和接口,可以显着增加PDSN的吞吐量。 此外,可以使用多个IP地址和接口来提供冗余以防止软件或硬件故障。 此外,根据本发明的方法和系统,消除或至少大大减少了使用具有多个IP地址和接口的PDSN所导致的内部硬切换的风险。

    System and method for collapsed subscriber management and call control
    20.
    发明授权
    System and method for collapsed subscriber management and call control 有权
    用户管理和呼叫控制的系统和方法

    公开(公告)号:US08325615B2

    公开(公告)日:2012-12-04

    申请号:US11517883

    申请日:2006-09-08

    IPC分类号: G01R31/08

    摘要: Systems and methods for integrating subscriber management and call control functionalities in a packet data network are provided. Subscriber management services include things such as tracking usage for billing, providing account information, and authorization of resources to a subscriber or user. Call control functionality includes setting up Session Initiation Protocol (SIP) call sessions for the exchange of data. SIP functionality is provided by a SIP server and subscriber management is provided by a Network Access Server (NAS), where the SIP functionality and NAS functionality are implemented on the same device. The combined device can maintain at least one database that maps information between the functionalities, so both functionalities may access or be alerted to the other's information.

    摘要翻译: 提供了在分组数据网络中集成用户管理和呼叫控制功能的系统和方法。 用户管理服务包括跟踪用于账单的用途,向用户或用户提供帐户信息和资源授权等。 呼叫控制功能包括建立用于数据交换的会话发起协议(SIP)呼叫会话。 SIP功能由SIP服务器提供,用户管理由网络接入服务器(NAS)提供,其中SIP功能和NAS功能在同一设备上实现。 组合的设备可以维护至少一个在功能之间映射信息的数据库,因此两个功能可以访问或者被提醒对方的信息。