State-mediated data signaling used for compression in telecommunication services

A communications unit adapted for message-based communication with an external communication unit, said communications unit comprising:

• at least one processor;
• and,
• at least one memory, said at least one memory storing instructions which, when executed by said at least one processor, are operable to perform the functions of:
• receiving a copy of a state comprising communications unit-associated data common to multiple communications messages to be transmitted between said communications unit and said external communications unit;
• receiving a first identifier of said state copy;
• generating a second identifier based on said received state copy;
• comparing said received first identifier and said generated second identifier;
• storing said state copy;
• and,
• responsive to said comparing, processing a communications message of said multiple communications messages using said stored state copy if said second identifier corresponds to said first identifier, said processing function configured for modulating a size of said communications message based on at least a portion of said communications unit-associated data in said state copy.

A communications unit adapted for message-based communication with an external communication unit, said communications unit comprising:

• at least one processor;
• and,
• at least one memory, said at least one memory storing instructions which, when executed by said at least one processor, are operable to perform the functions of:
• generating a state comprising communications unit-associated data common to multiple communications messages to be transmitted between said communications unit and said external communications unit;
• storing said state;
• generating a copy of said state;
• providing said state copy for storage in said external communications unit and for providing a first identifier of said state copy to said external communications unit;
• receiving an acknowledge identifier from said external communications, said acknowledge identifier being transmitted in response to a correspondence between said first identifier and a second identifier, said second identifier being generated by said external communications unit based on said state copy;
• and,
• responsive to said receiving function, processing a communications message of said multiple communications messages using said stored state if said second identifier corresponds to said first identifier as determined by reception of said acknowledge identifier, said processing function being configured for modulating a size of said communications message based on at least a portion of said communications unit-associated data in said state.