Communication system and method for shared context compression
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsKrister Svanbro, Johan Allden
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Abstract
A system, method, and apparatus for increasing the efficiency of the compression of a communication protocol for use over bandwidth limited communication links. One aspect of the present invention provides for the sharing of context information between a compressor and decompressor at each communication entity in a communication system. As a result, context information will be shared for each channel pair. In another aspect of the present invention, multiple communication sessions between communication entities may share the same context information for the compression and decompression of communication messages.
Claims22
A communication entity for facilitating compressed message communication, said communication entity comprising:
- a context table containing context information associated with at least one communication message;
- a compressor, in communication with said context table, said compressor using said context information to compress at least one transmitted communication message;
- and
- a decompressor, in communication with said context table, said decompressor using said context information to decompress at least one received communication message.
A method for facilitating compressed message communication, said method comprising the steps of:
- maintaining a context table containing context information associated with at least one communication message;
- compressing at least one transmitted communication message using said context information;
- and
- decompressing at least one received communication message using said context information.
A method for facilitating compressed message communication, said method comprising the steps of:
- compressing a first communication message having first context information to produce a first compressed message;
- storing said first context information in a context table;
- transmitting said first compressed message over a first communication channel;
- receiving a second compressed message over a second communication channel;
- decompressing said second compressed message to produce a second communication message having second context information;
- and
- storing said second context information in said context table.
A method for facilitating compressed message communication between a first communication entity and a second communication entity, said method comprising:
- compressing, at said first entity, at least a first communication message using a first context table;
- compressing, at said first entity, at least a second communication message using said first context table;
- transmitting to said second entity, by said first entity, said at least a first communication message using a first communication session, said first communication session having associated first context information;
- transmitting to said second entity, by said first entity, said at least a second communication message using a second communication session, said second communication session having associated second context information, said first context information substantially equal to said second context information.
Dependencies are inferred from the claim text.