QoS Policy Management in Wireless Networks
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Solution Overview
Problem
Current wireless communication networks face challenges in managing quality of service (QoS) effectively, particularly in reducing latency and optimizing network overhead, as existing methods introduce latency during authorization and data flow management.
Innovation Solution
The implementation of a QoS policy across wireless communication systems, where a core network provides QoS policy information to user equipment, including an uplink token for authorization, allowing for explicit or implicit QoS policy application, and pre-authorization of data sessions to reduce latency and optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional QoS authorization mechanisms are implemented, then QoS control and reliability are improved, but latency increases and system efficiency deteriorates
Solution Approach 1:
The patent implements pre-authorization of QoS policies where the network assigns uplink tokens to UEs in advance before actual data transmission occurs. These tokens are stored in the UE and automatically used for packet authorization, eliminating the need for real-time authorization requests and responses during data flow, thus reducing latency while maintaining QoS control reliability
Solution Approach 2:
The patent extracts the authorization function from the main data transmission path by implementing a separate token-based authorization mechanism. The uplink tokens are independently assigned and stored, allowing data packets to be transmitted without undergoing traditional authorization procedures, thereby separating the authorization process from the data flow and reducing latency
2Measurement precision
If detailed QoS policy management is implemented for each data session, then QoS precision and control capability are improved, but network overhead increases and system complexity deteriorates
Solution Approach 1:
The patent uses uplink tokens as simplified copies or representations of complex QoS policies. Instead of transmitting full QoS policy descriptions with each data packet, the network assigns compact token identifiers that reference pre-configured QoS policies. This copying mechanism maintains QoS precision while significantly reducing the amount of data that needs to be transmitted and processed in the network
Solution Approach 2:
The patent segments QoS management into two distinct parts: (1) QoS policy configuration and assignment performed by the network controller, and (2) token-based packet authorization performed locally at the UE. This segmentation allows detailed QoS policies to be managed centrally without requiring continuous network involvement for each packet, thereby reducing network overhead while maintaining policy precision
Data Source
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AI summary
A method of managing quality of service, QoS, in a data network, the method comprising receiving at a user equipment, UE, from a core network, CN, QoS policy information, receiving at the UE an indication of a resource for communicating with the CN utilizing a data session, wherein the data session utilizes a QoS policy based on the QoS policy information, and communicating with the CN utilizing the data session. Further, a corresponding apparatus and a computer-readable medium are described.