Terminal GBR Parameter Adaptation for Roaming Voice Services
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Solution Overview
Problem
When a terminal roams from one mobile network operator (MNO) to another with different voice capabilities, the inconsistency in Guaranteed Bit Rate (GBR) parameters leads to failed voice bearer establishment, preventing users from using voice services.
Innovation Solution
A communication processing method and apparatus that involve receiving and sending GBR parameters supported by the roaming location network, allowing terminals to establish services based on compatible parameters, ensuring successful voice bearer establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses the GBR parameter from its home network configuration, then the voice service quality is maintained at home, but the voice bearer establishment fails when roaming to a network with different GBR support
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the GBR parameter based on the roaming location network's capabilities. The terminal receives network capability information (including supported GBR values) from the roaming network and modifies its GBR parameter accordingly before establishing a voice bearer, ensuring compatibility with the host network while maintaining acceptable service quality.
Solution Approach 2:
The patent implements preliminary action by having the terminal query and receive network capability information before actually establishing the voice bearer. This preliminary exchange of capability information allows the terminal to pre-adjust its GBR parameter to match the roaming network's capabilities, preventing bearer establishment failure before it occurs.
2Reliability
If the network side rejects the voice bearer establishment request due to GBR mismatch, then the network resources are protected, but the user experience deteriorates during roaming
Solution Approach 1:
The patent applies feedback by implementing a mechanism where the roaming network provides capability information back to the terminal before bearer establishment. This feedback loop allows the terminal to learn the network's GBR limitations and adjust its requests accordingly, preventing rejections while maintaining good user experience.
Solution Approach 2:
The patent uses parameter changes to resolve the contradiction by dynamically modifying the GBR parameter based on network capabilities. Instead of using a fixed home network GBR value that causes rejections, the terminal changes its GBR parameter to match the roaming network's supported values, thereby avoiding resource waste from rejected requests while maintaining service availability.
Data Source
AI summary
This application provides a communication processing method and apparatus, a communication device, and a readable storage medium. The communication processing method includes: receiving, by a terminal, a first parameter from a first core network device; and establishing, by the terminal, the first service based on the first parameter. The first parameter includes a parameter supported by a first service of a roaming location network serving the terminal