Feature-Tag Codec Negotiation for Access Network Constraints
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Solution Overview
Problem
Existing codec selection methods in mobile communication networks fail to consider the specific characteristics of the access network and connection type, leading to suboptimal media session performance, particularly in non-terrestrial networks where high resource-consuming codecs may not be supported by available network resources.
Innovation Solution
Implementing a codec aware registration network (CARN) that utilizes feature tags to select codecs based on key performance indicators (KPIs) and access network type, prioritizing lower resource-consuming codecs when necessary to improve network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If codec selection is based on UE preference, then user satisfaction is improved, but network resource efficiency deteriorates
Solution Approach 1:
The patent introduces feature tags as an intermediary mechanism that conveys network capability information from the network to the UE. These tags enable the UE to understand network constraints and adjust codec preferences accordingly, resolving the contradiction between user preference and network efficiency by providing bridging information without requiring complex network control
Solution Approach 2:
The patent implements a feedback mechanism where the network provides feature tag information about its capabilities and constraints to the UE. This feedback loop allows the UE to make informed codec selection decisions that balance user preferences with network resource availability, preventing the selection of codecs that would exceed network capabilities
2Manufacturing precision
If high resource-consuming codecs are selected, then media quality is improved, but network supportability deteriorates
Solution Approach 1:
The patent changes the parameter space by introducing feature tags that encode network capability information. These tags allow the system to dynamically adjust codec selection based on network conditions, enabling high quality codec selection when network resources are available while preventing selection when resources are constrained, thus resolving the contradiction between media quality and network supportability
3Device complexity
If codec selection ignores access network characteristics, then selection simplicity is improved, but session performance deteriorates
Solution Approach 1:
The feature tags serve as an intermediary that carries network capability information without requiring complex selection logic in the UE. The tags encapsulate complex network characteristics in a simple format that the UE can process, maintaining selection simplicity while improving session performance through network-aware codec selection
Data Source
AI summary
Systems and methods for selecting one or more codecs are provided. A network may receive a message from a UE. The message may include one or more feature tags. The one or more feature tags may indicate an access network connection type between the UE and an access network and/or may indicate a key performance indicator (KPI) of the access network. Based on the feature tag, the network selects one or more codecs. The network communicates a response message to the UE. The response message includes the one or more codecs selected based on the feature tag.