Handover Processing Bearer Release Strategy
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Solution Overview
Problem
Handover processing in communication systems often experiences interruptions, which can disrupt service continuity due to the time required for procedures such as handover preparation and network resource reallocation.
Innovation Solution
A method for handover processing that involves determining whether to release signaling radio bearers (SRB) or data radio bearers (DRB) between a terminal device and a source network device based on specific release conditions, allowing interaction with a target network device through SRB or DRB, thereby optimizing handover timing and reducing interruption time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover procedures are followed (source base station transmits handover request to target base station, then configures information, then terminal performs random access), then handover completion is achieved, but service continuity is disrupted due to interruption time
Solution Approach 1:
The terminal device performs measurement and evaluation of source and target network devices during the connected state before handover. The terminal device determines whether to release SRB/DRB in advance based on pre-configured conditions, preparing the handover decision before actual handover execution, thereby reducing interruption time
Solution Approach 2:
The patent introduces dynamic bearer management where the terminal device can flexibly release SRB or DRB based on real-time conditions during handover. The release decision is not fixed but adapts to the specific handover scenario, allowing optimization of interruption time while maintaining service continuity
2Reliability
If the terminal device maintains both SRB and DRB connections during handover, then service continuity is improved, but device complexity and resource management difficulty increase
Solution Approach 1:
The terminal device autonomously determines whether to release SRB or DRB based on pre-configured conditions and current handover state. The network device provides the release conditions in advance, and the terminal device independently makes the release decision without complex network coordination, simplifying the overall system while ensuring service continuity
Data Source
AI summary
The present invention discloses a handover processing method, a terminal device and a network device. The method comprises: receiving a handover instruction; executing a handover on the basis of the handover instruction, during the handover execution, interacting with a target network device through a signaling radio bearer (SRB) and/or a data radio bearer (DRB) with the target network device; after receiving the handover instruction, the method further comprises: determining whether to release the SRB with a source network device on the basis of an SRB release condition; and/or, determining whether to release the DRB with the source network device on the basis of the DRB release condition.