Selective Bearer Handover for 5G TSN Service Continuity
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Solution Overview
Problem
Current 5G system handover processes, particularly in time-sensitive networks (TSN), face challenges in ensuring fixed transmission delay and quality of service (QoS) due to the need for all bearers to switch during handovers, which affects speed and efficiency, and limits the terminal device's access area, potentially disrupting TSN service continuity.
Innovation Solution
A service processing method and apparatus that allow a first base station to obtain indication information from the network side, including service support, effective area, and terminal device status, enabling selective data flow and session information transfer during handovers, and triggering handover requests only when necessary, thereby optimizing handover speed and efficiency without requiring all bearers to switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all bearers are switched during handover to ensure service continuity, then service reliability is improved, but handover speed and efficiency deteriorate
Solution Approach 1:
The patent segments bearers into TSN-related bearers and non-TSN bearers. During handover, only the TSN bearers are switched while non-TSN bearers remain on the source base station, achieving partial handover that improves speed while maintaining service continuity for critical TSN services.
Solution Approach 2:
The patent applies different handover strategies to different bearers based on their service requirements. TSN bearers undergo full handover to maintain quality of service, while other bearers can use simplified handover or remain connected, optimizing the balance between reliability and speed for each bearer type.
2Reliability
If handover is performed to maintain TSN service, then service continuity is improved, but the terminal device access area is limited
Solution Approach 1:
The patent dynamically determines whether to perform handover based on real-time conditions including terminal device status, network load, and service requirements. This dynamic approach allows the terminal to access a broader area while maintaining TSN service continuity only when necessary, rather than being restricted to a fixed service area.
Solution Approach 2:
The patent performs preliminary actions by obtaining indication information from the network side before handover, including service support indication, effective area information, and terminal device status. This allows the base station to pre-determine the optimal handover strategy and expand the effective access area while ensuring service continuity.
3Reliability
If all current bearers are requested to switch during handover, then service completeness is improved, but processing time and complexity increase
Solution Approach 1:
The patent segments the bearer switching process by identifying which bearers need to be switched (TSN bearers) and which can remain (non-TSN bearers). This selective switching reduces the number of bearers processed during handover, thereby reducing processing time while maintaining service completeness for critical services.
Solution Approach 2:
The patent applies partial action by switching only the necessary TSN bearers during handover rather than all bearers. This partial handover approach reduces processing time and complexity while still ensuring service completeness for time-sensitive services that require handover.
Data Source
AI summary
The present application discloses a service processing method and apparatus, a chip, and a computer program, where the method includes: service support indication information; indication information of an effective area; indication information of a first behavior; status indication information of a terminal device; indication information of first behavior execution time; first behavior retry time. By applying the solution described in the present application, the reasonable deployment and handover control of the service can be realized.