Network Node Codec Mode Set Determination for VoLTE Congestion
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Solution Overview
Problem
In wireless communication systems, the existing methods for determining a codec set for service communication, such as VoLTE, often lead to network congestion due to frequent regulation of the codec mode set by the application layer, which affects network performance.
Innovation Solution
The proposed method involves the calling UE obtaining information about the current network state, including traffic and channel performance, to determine a suitable codec mode set that balances service type requirements and network conditions, thereby reducing the frequency of codec mode set adjustments and improving network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the application layer frequently regulates the codec mode set to adapt to network conditions, then the adaptability of the communication system is improved, but the network congestion increases and overall network performance deteriorates
Solution Approach 1:
The patent introduces a network node (e.g., base station or network controller) as an intermediary that receives codec mode set requests from UEs, determines the appropriate codec mode set based on network conditions, and returns the determined set to the UE. This mediator handles the complex regulation logic centrally, preventing frequent application-layer regulations from causing network congestion while maintaining system adaptability.
Solution Approach 2:
The patent shifts the codec mode set determination from the application layer to the network control layer, adding a new dimension of control. By moving the regulation function to the network infrastructure rather than leaving it at the application layer, the system achieves better overall performance while maintaining adaptability.
2Speed
If the application layer autonomously determines the codec mode set based on local information, then the response speed is improved, but the network congestion increases due to multiple signaling messages
Solution Approach 1:
The patent extracts the codec mode set determination logic from the application layer and relocates it to the network node. This extraction eliminates the need for multiple SIP and SDP signaling messages between UEs for codec negotiation, reducing signaling complexity while maintaining fast response through network-side decision making.
3Adaptability or versatility
If multiple network nodes are involved in adaptive regulation, then the system adaptability is improved, but the number of signaling messages increases causing network congestion
Solution Approach 1:
The patent merges the codec mode set determination function into a single network node that handles requests from multiple UEs. Instead of each UE independently negotiating with multiple nodes, the consolidated approach at the network node reduces redundant signaling while maintaining the ability to adapt to different network conditions and service types.
Data Source
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AI summary
The present invention relates to a communication method and device. The communication method comprises: obtaining information related to a current network state; determining an appropriate codec mode set according to the information related to the current network state and information related to a service type; and carrying out service communication by using the appropriate codec mode set. According to the communication method, since the current network state is considered during determining of the codec mode set, the overall network performance is improved.