Radio Bearer Setup for High Voice Quality Codec Segmentation
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Solution Overview
Problem
In existing communication networks, the quality of voice services is inconsistent due to differences in codec capabilities among devices, leading to users with high-definition codec capabilities not experiencing high-quality voice services when communicating with devices that only support lower codec standards.
Innovation Solution
A method for determining the codec capabilities of logical functional entities in an end-to-end link and setting up a radio bearer for high voice quality codec schemes, even if only one entity supports a lower codec, by converting voice data as necessary to ensure consistent user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a radio bearer is set up based on the lowest codec capability among all devices in the end-to-end link, then compatibility with all devices is ensured, but users with high-definition codec capabilities cannot experience high-quality voice services
Solution Approach 1:
The patent segments the end-to-end link into multiple independent segments (terminal1-network device1, network device1-network device2, network device2-terminal2), allowing each segment to independently select and set up radio bearers based on the codec capabilities of devices within that specific segment. This enables different segments to operate at different quality levels simultaneously, resolving the contradiction between overall compatibility and local high-quality service.
Solution Approach 2:
The patent introduces a new dimension of segmentation by dividing the traditional single end-to-end link into multiple overlapping link segments. This dimensional change allows the system to evaluate and optimize codec capability matching at the segment level rather than being constrained by the lowest common denominator across the entire link, thereby enabling high-definition voice services for users whose segment supports it.
2Manufacturing precision
If all devices in the end-to-end link are required to support high-definition codec schemes, then high-quality voice services can be provided, but compatibility with existing low-capability devices is lost
Solution Approach 1:
The patent applies local quality by allowing different segments of the network to have different codec capability requirements. Segments with high-capability devices can operate with high-definition codecs (AMR-WB, EVS), while segments with low-capability devices use standard codecs (AMR-NB). This local optimization resolves the contradiction by enabling high quality where possible while maintaining compatibility where necessary.
Solution Approach 2:
The patent introduces dynamic adaptability by enabling network devices to flexibly adjust their codec selection and radio bearer configuration based on the specific capabilities of devices in each segment. This dynamic approach allows the system to optimize for high quality when high-capability devices are present, while automatically adapting to maintain compatibility when only low-capability devices are involved.
3Manufacturing precision
If codec capability determines radio bearer setup, then service quality matches device capability, but users with high capabilities experience degraded service when connected to low-capability devices
Solution Approach 1:
By segmenting the network link and evaluating codec capabilities at the segment level rather than the full link level, the patent enables high-capability users to achieve their full service quality potential within their own segment, eliminating the degradation that occurs when the lowest common denominator across the entire link determines service quality.
Solution Approach 2:
The patent performs preliminary evaluation of codec capabilities within each network segment before setting up radio bearers. This preliminary action allows the system to identify and configure high-quality bearers for segments with high-capability devices, ensuring that users experience service quality consistent with their device capabilities from the outset, rather than being constrained by downstream low-capability devices.
Data Source
AI summary
Embodiments of the present invention disclose a method including: determining whether, in an end-to-end link in which a voice service is performed between a first terminal and a second terminal, at least one logical functional entity that is capable of providing only a voice service of a low voice quality codec scheme exists between a network device and the second terminal, where all logical functional entities, in the link, between the network device and the first terminal are capable of providing a voice service of a high voice quality codec scheme; and if at least one logical functional entity that is capable of providing only the voice service of the low voice quality codec scheme exists, in the link, between the network device and the second terminal, setting up, for the first terminal, a radio bearer used to perform the voice service of the high voice quality codec scheme.