Codec Adaptation Control for Wireless Interface Efficiency
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G networks, face challenges in efficiently managing bit rate adjustments due to issues like network congestion and Radio Access Network (RAN) congestion, which can lead to inefficient wireless interface efficiency and conflicts with actual communication needs.
Innovation Solution
The implementation of a method that allows communication nodes to receive and send control information regarding codec adaptation, including bit rate adjustments, time windows, and supported features, enabling fine-grained control mechanisms between network nodes and communication nodes, such as UEs, to optimize bit rate adjustments based on network capabilities and requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bit rate adjustment is implemented in wireless communication systems, then communication quality and network efficiency are improved, but system complexity and control overhead increase
Solution Approach 1:
The patent segments the bit rate control mechanism into multiple independent components: codec adaptation control information, time window parameters, and granular application layers. This allows the system to manage complexity by dividing the control function into manageable parts that can be independently configured and processed.
Solution Approach 2:
The patent implements preliminary action by pre-configuring codec adaptation control information and time window parameters before actual bit rate adjustment is needed. The network node prepares adaptation control information in advance, including supported codecs, bit rate ranges, and time windows, so that when adaptation is required, the communication node can quickly apply pre-approved parameters without complex real-time negotiations.
2Adaptability or versatility
If codec adaptation control information is exchanged between network nodes and communication nodes, then bit rate adjustment flexibility is improved, but signaling overhead and communication latency increase
Solution Approach 1:
The patent merges codec adaptation control information with existing RRC (Radio Resource Control) signaling messages. Instead of creating separate dedicated signaling channels for codec adaptation, the control information is integrated into existing RRC reconfiguration messages, thereby utilizing already-established signaling pathways and avoiding additional latency from new signaling protocols.
Solution Approach 2:
The network node pre-configures and sends codec adaptation control information to the communication node in advance, including a list of supported codecs, their parameters, and time windows for adaptation. This preliminary configuration allows the communication node to have adaptation options ready before actual network conditions require bit rate changes, reducing the time needed for real-time negotiation.
3Measurement precision
If fine-grained control mechanisms are implemented per PDU session, QoS flow, or DRB, then network resource management precision is improved, but system complexity and processing overhead increase
Solution Approach 1:
The patent applies segmentation by associating codec adaptation control information with specific granular entities such as PDU sessions, QoS flows, and data radio bearers (DRBs). Each entity can have its own independent codec adaptation configuration, allowing precise control over bit rate adjustments for different types of traffic while maintaining clear separation between control domains.
Solution Approach 2:
The patent implements local quality by allowing different codec adaptation parameters to be applied to different PDU sessions, QoS flows, or DRBs based on their specific requirements. Each logical channel can have customized codec lists, bit rate ranges, and time windows, enabling optimized resource management for each type of traffic without imposing uniform complexity across the entire system.
4Reliability
If time window parameters are enforced for codec adaptation, then network control and congestion management are improved, but adaptability to sudden network condition changes is reduced
Solution Approach 1:
The patent implements dynamics by making time window parameters configurable and adjustable rather than fixed. The network node can dynamically modify the time windows within which codec adaptation is permitted, allowing the system to maintain stability during normal operation while quickly adapting when network conditions change. The time window configuration can be updated through subsequent RRC signaling when needed.
Solution Approach 2:
The system incorporates feedback mechanisms where the network node monitors network conditions and congestion levels, then adjusts codec adaptation control information accordingly. When congestion is detected or network conditions change, the network node can update time window parameters and codec adaptation configurations to reflect current conditions, ensuring both stability and adaptability.
Data Source
AI summary
The disclosed techniques enable communication nodes to perform rate adjustments. As an example, a communication node may receive a control information from a network node. Based on the received control information, the control node may determine that the network node supports codec adaptation or that the communication node is allowed to enable the codec adaptation.