Methods for efficient transmission of signaling messages in a packet-based network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsLars Westberg, Niclas Lindberg
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Abstract
The present invention deals with the problem with packet based services consuming considerable bandwidth over links with shortage of bandwidth. The object of the present invention is to reduce the amount of information when transferring a signalling message and thus save bandwidth. After receiving a signalling message in a first node the signalling message is identified. The signalling message is replaced by an indicator, under usage of information from the identification, which indicator is transferred to a second node. The second node restores the signalling message using the indicator.
Claims7
A method for managing a Voice over IP (VoIP) communication through a packet-based network, wherein said VoIP communication requires the transmission of packets having a header portion and a payload portion, said payload portion containing data associated with said communication and signaling messages utilized to establish, maintain or terminate said VoIP communication, said packets being transmitted from a first node to a second node, said method comprising the steps of:
- receiving a packet at the first node;
- if said packet is received at a predefined port of said first node, identifying said packet as containing a signaling message;
- replacing the signaling message within the payload portion of said packet with an indicators, wherein said indicator comprises fewer bits that said signaling message and functions as a proxy for said signaling message;
- transmitting the packet to the second node;
- and
- restoring the signaling message in the second node by means of the indicator, whereby the bandwidth of the transmission link between said first and second nodes is more efficiently utilized.
Dependencies are inferred from the claim text.