发明名称 |
DEVICE AND METHOD FOR DECOMPRESSING HEADER |
摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for decompressing a header in which the update of reference information is requested in response to the error state of the header-decompressed packet. <P>SOLUTION: In a header decompressing device 709, a header decompressing section 703 refers to reference information in a reference information management section 707 to decompress a compressed header of the packet received by a packet reception section 704. An error detection section 702 detects a CRC error in the packet of which the header is decompressed by the header decompressing section 703 and only the correct packet is outputted from a packet output section 701. A consecutive erroneous decompression counter 705 counts the number of consecutive errors detected by the error detection section 702 while a consecutive successful decompression counter 706 counts the number of consecutive successful decompressions. An update request section 708, referring to the counted number, transmits an update request to a transmitter side when needed. The reference information management section 707 manages the reference information for decompressing the header. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
申请公布号 |
JP2004229318(A) |
申请公布日期 |
2004.08.12 |
申请号 |
JP20040064818 |
申请日期 |
2004.03.08 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
HATA KOICHI;MIYAZAKI AKIHIRO;IMURA KOJI;IDO TAIJI |
分类号 |
H04L1/16;H04L12/70;H04L29/14;(IPC1-7):H04L1/16;H04L12/56 |
主分类号 |
H04L1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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