QoS Continuity in Wireless Network UE Handovers
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Solution Overview
Problem
Existing wireless networks face challenges in maintaining seamless Quality of Service (QoS) parameters when User Equipment (UE) transitions between different Internet Protocol (IP) gateways, leading to potential difficulties in service continuity and efficiency.
Innovation Solution
The implementation of a mechanism by the network controller to identify and manage the transfer of UEs between different IP gateways, ensuring that QoS parameters are seamlessly maintained through the establishment of new dedicated bearers with the same QoS settings as the previous ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UEs are transferred between different IP gateways to improve network flexibility and load distribution, then network adaptability is improved, but QoS parameter continuity deteriorates
Solution Approach 1:
The patent establishes QoS parameter mapping relationships in advance between different IP gateways. When a UE is transferred between gateways, the pre-configured mapping ensures that QoS parameters are seamlessly maintained without interruption, resolving the contradiction between network flexibility and QoS continuity.
Solution Approach 2:
The patent introduces a QoS parameter mapping mechanism as an intermediary layer between UEs and different IP gateways. This mapping layer translates and preserves QoS parameters across gateway boundaries, enabling seamless handover while maintaining service quality, thus resolving the contradiction between adaptability and reliability.
2Device complexity
If traditional UE transfer mechanisms are used to simplify the handover process, then device complexity is reduced, but service continuity deteriorates
Solution Approach 1:
The patent creates and maintains QoS parameter mapping copies between different IP gateways. When a UE is transferred, the QoS parameters are copied and applied from the source gateway's mapping to the target gateway, ensuring service continuity without complex reconfiguration procedures. This copying mechanism simplifies the handover process while guaranteeing QoS continuity.
3Ease of manufacture
If QoS parameters are reconfigured during UE transfer to adapt to new gateway conditions, then local optimization is improved, but service interruption increases
Solution Approach 1:
The patent pre-establishes QoS parameter mapping relationships before UE transfer occurs. This preliminary configuration eliminates the need for real-time QoS reconfiguration during handover, thereby avoiding service interruption while still enabling local optimization at the target gateway through the pre-configured mapping.
Solution Approach 2:
The patent ensures continuous QoS parameter application during UE transfer by maintaining active mapping relationships throughout the handover process. The QoS parameters remain continuously valid and applicable without interruption, allowing seamless service transition while adapting to new gateway conditions through the established mapping.
Data Source
AI summary
A system described herein may maintain a set of Quality of Service (“QoS”) parameters associated with a particular User Equipment (“UE”). The system may provide the set of QoS parameters to a policy element of a wireless network, wherein the wireless network establishes a first dedicated bearer with the particular UE, which may be associated with the set of QoS parameters. The system may receive, after the first dedicated bearer is established, information indicating an occurrence of a particular event associated with the particular UE, and may output, to a policy element of the wireless network, a request to establish a second dedicated bearer with the particular UE. The wireless network may establish the second dedicated bearer with the particular UE, which may be associated with the set of QoS parameters.