Network Slice Information Transfer for Seamless Handover
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Solution Overview
Problem
Current network slicing technologies in next-generation mobile communication networks do not adequately address the mobility of user equipment, leading to service interruptions during cell changes, as there is no established method for seamless data transmission and reception across different network slices.
Innovation Solution
A method and apparatus for controlling data transmission and reception through network slicing, where user equipment and base stations coordinate by requesting and transferring network slice information to a core network entity, enabling handover commands to maintain service continuity during mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If network slicing technology is employed to improve network resource utilization and service quality, then network efficiency and QoS are improved, but mobility guarantee and service continuity during cell changes deteriorate due to lack of established procedures
Solution Approach 1:
The patent applies preliminary action by having the source base station transfer network slice information to the target base station before the user equipment actually performs handover. This advance preparation ensures that the target base station is ready to immediately continue network slice services without interruption, resolving the contradiction between improved network efficiency and maintained service continuity during mobility.
2Reliability
If network slice information is transferred to target base station during handover, then service continuity is maintained, but device complexity and signaling overhead increase
Solution Approach 1:
The patent uses the source base station as an intermediary to transfer network slice information to the target base station during handover. This intermediary approach simplifies the overall system complexity by centralizing the information transfer responsibility at the source base station, which already possesses complete network slice context, rather than requiring complex coordination between multiple network entities.
3Reliability
If seamless handover is implemented across all cells, then service interruption is minimized, but compatibility issues arise when target cells do not support network slicing
Solution Approach 1:
The patent implements feedback by having the target base station send acknowledgment information back to the source base station regarding its network slice support capability. This feedback mechanism allows the source base station to make informed decisions about handover procedures, transferring network slice information only when the target base station is capable of supporting it, thereby ensuring both service continuity and broad cell compatibility.
Data Source
AI summary
Provided are a method of a base station for controlling transmission and reception of data through a network slice. The method includes: receiving network slice request information from a terminal in which a network slice is configured; controlling so as to deliver the network slice request information to a core network entity; and receiving, from the core network entity, specific network slice information configured on the basis of the network slice request information.