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IP datagram de-encapsulation

机译:IP datagram的-encapsulation

摘要

An apparatus (1001), system (1000) and method (800-900) are provided for improving the de-encapsulation of sections from Multi Protocol Encapsulation (MPE) (151) and Multi Protocol Encapsulation-Forward Error Correction (MPE-FEC) (152) Sections in a DVB-H transport stream. DVB-H is a standard for broadcasting services to hand-helds. Its difference from DVB-T, C, and S that is relevant for this invention is the presence of an additional layer of Forward Error Correction (FEC). Instead of restoring only correctly received sections (151) (152) the present invention also restores fragments of sections (151) (152) by using both Transport Stream packet headers (301. i.1) and section headers (151.1). As a result, entire sections (800-900) may not be erased (which can amount to up to 4080 bytes) whenever one or more fragments are received incorrectly, but only the incorrectly received fragments (which can be each up to 184 bytes) are erased. This leads to a more efficient use of the additional layer of Forward Error Correction (FEC) information.
机译:提供了一种用于改善设备质量的设备( 1001 ),系统( 1000 )和方法( 800 - 900 )。从DVB-A中的多协议封装(MPE)( 151 )和多协议封装-前向纠错(MPE-FEC)( 152 )部分解封装H运输流。 DVB-H是向手持设备广播服务的标准。与本发明有关的它与DVB-T,C和S的区别在于存在前向纠错(FEC)的附加层。代替仅恢复正确接收的部分( 151 )( 152 ),本发明还恢复了部分( 151 )( 152 ),同时使用传输流数据包标头( 301 .i。 1 )和段标头( 151.1 )。结果,每当错误地接收到一个或多个片段时,整个段( 800 - 900 )可能不会被擦除(最多4080字节),而仅错误接收的片段(每个片段最多184个字节)将被删除。这导致更有效地使用前向纠错(FEC)信息的附加层。

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