QoS Flow Control for 5G Media Unit Resource Efficiency
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Solution Overview
Problem
In 5G communication systems, traditional QoS control methods waste air interface resources due to independent encoding and decoding of media units, where loss of some data packets renders other successfully transmitted packets meaningless to the user device.
Innovation Solution
A method for controlling Quality of Service (QoS) by determining a QoS flow corresponding to a Service Data Flow (SDF) based on media unit control information, sending a QoS Flow Identifier (QFI) and second media unit control information to perform unified transmission control across all data packets in a media unit, rather than individual packet control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If independent encoding and decoding of media units is used, then device complexity is reduced, but air interface resources are wasted due to packet loss rendering other packets meaningless
Solution Approach 1:
The patent merges multiple data packets belonging to the same media unit into a single QoS flow with unified control. By applying media unit control information to all packets in a media unit, the system ensures that packets are transmitted together as a group, preventing the waste of air interface resources that occurs when individual packet control is used. This merging approach maintains the simplicity of independent media unit encoding while eliminating resource waste through collective packet management.
2Measurement precision
If individual packet control is used, then QoS control precision is improved, but air interface resources are wasted due to loss of some packets rendering other successfully transmitted packets meaningless
Solution Approach 1:
The patent combines multiple packets into a unified QoS flow controlled by media unit control information. This merging ensures that all packets belonging to the same media unit are treated collectively, maintaining precise QoS control at the media unit level while preventing resource waste. When packet loss occurs, the unified control mechanism ensures that related packets are handled appropriately, avoiding the scenario where successfully transmitted packets become meaningless.
Solution Approach 2:
The patent changes the control parameter level from individual packet control to media unit level control. By applying media unit control information that encompasses multiple packets, the system maintains QoS precision at the appropriate granularity level while eliminating the inefficiency of controlling each packet individually. This parameter change enables the system to achieve both precision and resource efficiency.
3Loss of energy
If unified transmission control across all data packets in a media unit is implemented, then air interface resource efficiency is improved, but device complexity increases due to media unit level control requirements
Solution Approach 1:
The patent merges the control of multiple packets into a single unified mechanism using media unit control information. This approach improves air interface resource efficiency by ensuring that all packets in a media unit are transmitted together under unified control, while the complexity is managed by leveraging existing media unit structures that are already present in the encoding process.
Solution Approach 2:
The patent makes the QoS control mechanism universal by applying media unit control information to all packets within a media unit. This multi-functional approach allows the same control information to govern multiple packets, reducing the need for separate control mechanisms and thereby limiting the increase in device complexity while achieving resource efficiency.
4Loss of energy
If media unit level QoS control is applied, then resource efficiency is improved, but difficulty of detecting and measuring increases due to media unit control information requirements
Solution Approach 1:
The patent merges control information at the media unit level, which naturally groups multiple packets together. This approach improves resource efficiency by ensuring unified transmission control, while the detection and measurement difficulty is managed by utilizing the existing media unit structure that already provides a natural grouping mechanism for related packets.
Solution Approach 2:
The patent applies media unit control information in advance to all packets belonging to a media unit before transmission. This preliminary action ensures that resource efficiency is improved through unified control, while the difficulty of detecting and measuring is reduced by establishing the control framework beforehand, allowing receiving devices to process packets more efficiently.
Data Source
AI summary
A method for controlling Quality of Service (QOS) is provided, which includes that: a first core network element determines a QoS flow corresponding to a Service Date Flow (SDF) based on first media unit control information of the SDF, and sends an identifier of the Qos flow and second media unit control information. A first core network element and a third core network element are further provided.