Active session mobility solution for radio link protocol
    12.
    发明公开
    Active session mobility solution for radio link protocol 有权
    移动互联网

    公开(公告)号:EP1643717A1

    公开(公告)日:2006-04-05

    申请号:EP05255861.6

    申请日:2005-09-22

    CPC classification number: H04W80/00 H04W8/087

    Abstract: An active session mobility solution for radio link protocol (RLP) in accordance with the present invention defines two RLP migrations states. A first state is defined as a forward-link RLP state and depicts the communication of data from a home agent to an access terminal in an IP network. A second state is defined as a reverse-link RLP state and depicts the communication of data from the access terminal to the home agent in the IP network. In one embodiment of the seamless active session mobility solution for RLP in accordance with the present invention, a two-stage RLP transfer process for the migration of the two defined states from a source to a target is implemented. In a first stage, the forward-link RLP state is transferred from a source to a target. In a second stage, frame selection and the reverse-link RLP are transferred from the source to the target.

    Abstract translation: 根据本发明的用于无线电链路协议(RLP)的活动会话移动性解决方案定义了两个RLP迁移状态。 第一状态被定义为前向链路RLP状态,并且描绘了从归属代理到IP网络中的接入终端的数据的通信。 第二状态被定义为反向链路RLP状态,并且描绘从IP网络中的从接入终端到归属代理的数据的通信。 在根据本发明的用于RLP的无缝活动会话移动性解决方案的一个实施例中,实现了将两个定义的状态从源迁移到目标的两级RLP传送过程。 在第一阶段,前向链路RLP状态从源传输到目标。 在第二阶段,帧选择和反向链路RLP从源传输到目标。

    Unequal error protection for multi-mode vocoders
    13.
    发明公开
    Unequal error protection for multi-mode vocoders 有权
    对于Mehrmodensprachkodierer不等错误保护

    公开(公告)号:EP1032152A2

    公开(公告)日:2000-08-30

    申请号:EP00301167.3

    申请日:2000-02-15

    CPC classification number: H04L1/0046 G10L19/18 H04L1/0061 H04L1/007 H04L1/201

    Abstract: A method of insuring the accuracy of transmitted or stored digital data involves the use of a cyclical redundancy check (CRC) code. The method is particularly useful for ensuring the accuracy of frames transmitted between multi-mode vocoders. The method allows a different CRC code to be used for each mode of a transmitting multi-mode vocoder. A receiving multi-mode vocoder checks the CRC code against the CRC coding formulas of the various modes. If the CRC code is satisfied under any one of the modes, the frame is labeled as "good". If the CRC code fails under all the modes, the frame is labeled as "bad". If the bit frame includes bits for indicating the mode of the transmitting multi-mode vocoder, the receiving multi-mode vocoder checks the CRC code against the CRC coding formula for the indicated mode only. If the CRC code passes for the indicated mode, the frame is labeled as "good", otherwise, the frame is labeled as "bad".

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