Method and system for negotiating compression techniques to be utilized in packet data communications
AssigneeNortel Networks Limited
InventorBrian Stucker
Life of this patent
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Abstract
Disclosed is one embodiment of a system and method for negotiating a compression technique while signaling is occurring in a communications network, the method comprising sending a message with a compression negotiation indicator, receiving a response to the message, determining if the response contains an error code in response to the compression header, if the message contains an error code, then continuing signaling without using compression techniques. On the other hand, if the message does not contain an error code, then the method negotiates a compression technique and may continue signaling with the negotiated compression technique.
Claims20
A method for negotiating a compression technique while signaling is occurring in a communications network, the method comprising:
- sending a message with a compression negotiation indicator,
- receiving a response to the message,
- determining if the response contains an error code,
- if the message contains the error code, then continuing signaling without using compression techniques,
- if the message does not contain the error code, then negotiating a compression technique to determine a negotiated compression technique and continuing signaling with the negotiated compression technique.
A network system, comprising:
- a first node of the network system,
- a second node of the network system,
- a memory device coupled to the second node, wherein the memory device includes instructions for:
- sending a message with a compression negotiation indicator,
- receiving a response to the message,
- determining if the response contains an error code,
- if the message contains the error code, then continuing signaling without using compression techniques,
- if the message does not contain the error code, then negotiating a compression technique to determining a negotiated compression technique and continuing signaling with the negotiated compression technique.
A method for negotiating a compression technique during call signaling between two nodes of a Session Initiation Protocol network, the method comprising:
- receiving from a first node a message containing a session key and a function code, wherein the function code represents a function selected from the group consisting of initiating a new session, session acceptance, session reset, session closed, not supported, check-sum failure, and
- sending a response to the first node indicating acceptance of the session key.
Dependencies are inferred from the claim text.