| 摘要 |
A method for exchanging compression/decompression dictionaries, and a com munications node, which comprises a client module issuing and receiving mess ages, a compression/decompression module for compression/decompression of me ssages issued and received by the client module, a first dictionary for use by the compression/decompression module, and a second dictionary for use by the compression/decompression module. When the client module determines a se quence based on which to exchange dictionaries with one or more peers (e.g. a P-CSCF), it creates the first dictionary comprising at least one prioritis ed type of message and sends the first dictionary to the compression/decompr ession module, which stores the first dictionary and further sends it to at least the peer node. Still based on said determined sequence, the client mod ule further creates the second dictionary comprising at least one other type of message, sends the second dictionary to the compression/decompression mo dule which stores it and further sends to a peer node.
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