SDAP Header Configuration for Reflective QoS Processing
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Solution Overview
Problem
In existing communication technologies, particularly in 5G systems, the processing resources of devices are heavily occupied due to the need for each sub-layer of the access stratum to encapsulate and decapsulate downlink data packets regardless of their processing attributes, leading to inefficiencies.
Innovation Solution
The proposed method involves a base station determining the downlink processing attribute of data radio bearers and only adding a Service Data Adaptation Protocol (SDAP) header to data packets that support NAS or AS reflective QoS functions, while omitting the header for packets that do not support these functions, thereby optimizing processing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each sub-layer of the access stratum encapsulates and decapsulates downlink data packets regardless of processing attributes, then data packets can be processed through all layers, but processing resources of devices are heavily occupied
Solution Approach 1:
The patent applies local quality by differentiating processing approaches based on downlink processing attributes. Data packets are categorized into three types (NAS reflective QoS, AS reflective QoS, and non-reflective QoS), and each type receives tailored processing - some layers encapsulate while others skip encapsulation based on the specific packet's attributes, optimizing resource usage while maintaining necessary processing completeness
Solution Approach 2:
The patent segments the data packet processing into distinct paths based on QoS reflective attributes. By dividing packets into different categories with different processing requirements, the system avoids uniform heavy processing on all packets, thereby reducing overall processing resource occupation while ensuring each packet receives appropriate handling
2Reliability
If SDAP header is added to all downlink data packets, then QoS function support is ensured, but processing overhead increases
Solution Approach 1:
The patent implements local quality by conditionally adding SDAP headers only to data packets that require QoS reflective functions. Packets with NAS or AS reflective QoS attributes receive the SDAP header with appropriate QoS parameters, while non-reflective QoS packets skip this overhead, thus maintaining QoS support where needed while reducing overall processing complexity
Data Source
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AI summary
The present application relates to the technical field of communications, and provides a downlink data packet configuration method and device. The method comprises: determining a target data bearer (DRB) corresponding to a downlink data packet to be sent; determining a target downlink processing attribute corresponding to the target DRB according to a correspondence of the configured DRB and the processing attribute; if the target downlink processing attribute is supporting the NAS Reflective QoS function or supporting the AS Reflective QoS function, adding a service data adaptation protocol (SDAP) packet header in the process of packaging the downlink data packet; and if the target downlink processing attribute is not supporting the NAS Reflective QoS function and not supporting the AS Reflective QoS function, not adding an SDAP packet header in the process of packaging the downlink data packet. The present application solves the problem of occupying a great amount of processing resources of an apparatus, and thus achieves the effect of saving the processing resources of the apparatus.