Data Flow Messaging for XR QoS and Latency Control
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Solution Overview
Problem
Operator networks struggle to provide effective services for service data, such as extended reality (XR), due to lack of direct interfaces or service protocols with application servers, leading to suboptimal user experiences.
Innovation Solution
A communication method and apparatus that enables terminal devices to transmit packet filtering and operation information to network elements, allowing network elements to process and manage data flows at a data unit set level, including QoS adjustments and round-trip transmission control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If operator network provides service for service data without direct interfaces with application servers, then network complexity is reduced, but service quality and latency control deteriorate
Solution Approach 1:
The patent introduces a data flow descriptor as an intermediary mechanism that carries packet filtering information and operation information between the terminal device and network elements. This descriptor enables the network to understand and control service data flows without requiring direct interfaces with application servers, thus maintaining network simplicity while improving service quality control through standardized information exchange.
Solution Approach 2:
The patent changes the parameter representation by using a standardized data flow descriptor format that includes packet filtering information (source/destination addresses, ports, protocols) and operation information (QoS parameters, routing instructions). This parameter transformation allows the network to control service quality through modular information processing rather than complex direct connections.
2Reliability
If terminal device transmits packet filtering and operation information to network elements, then service quality control is improved, but information processing complexity increases
Solution Approach 1:
The patent segments the service data flow control into distinct information components: packet filtering information (identifying which data to process) and operation information (specifying how to process it). This segmentation allows network elements to handle complex service quality control by processing these information segments independently and systematically, reducing overall processing complexity.
Solution Approach 2:
The terminal device performs preliminary action by preparing and transmitting the data flow descriptor with all necessary packet filtering and operation information before the actual data transmission begins. This advance preparation allows network elements to pre-configure processing parameters, reducing real-time processing complexity and enabling more efficient service quality control.
3Loss of time
If network elements process data flows at data unit set level, then latency is reduced, but processing precision requirements increase
Solution Approach 1:
The patent applies local quality by processing different aspects of data flow control at appropriate granularity levels. The packet filtering information operates at a coarse level to identify data flows, while operation information (including QoS parameters) is applied at a finer level for specific processing instructions. This multi-level approach reduces latency through early filtering while maintaining precision through detailed operation control where needed.
Data Source
AI summary
A communication apparatus is provided. The communication apparatus includes a memory and a processor. The memory is configured to store a computer program, and the processor is configured to execute the computer program stored in the memory to cause the communication apparatus to perform an operation of: transmitting a first message to a first network element, wherein the first message comprises packet filtering information of a first data flow and/or first operation information for the first data flow.