Radio Bearer Channel Segmentation for Service Continuity
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Solution Overview
Problem
In wireless communications networks, when the configuration of one or some data radio bearers (DRBs) changes, it leads to interruptions in service data between user equipment (UE) and the base station due to differing Quality of Service (QoS) requirements, causing user experience degradation and network throughput issues.
Innovation Solution
A method and device for establishing signaling radio bearers (SRBs) and DRBs with distinct transmission and physical channels, allowing for independent configuration and handover of each DRB, preventing simultaneous re-configuration of all DRBs when one changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all DRBs are multiplexed to the same transmission channel and physical channel, then channel configuration is simplified, but configuration changes cause interruption in all service data
Solution Approach 1:
The patent divides the multiplexed transmission channel into separate dedicated channels for each DRB. Each DRB is assigned its own dedicated transmission channel and physical channel, allowing independent configuration and modification without affecting other DRBs. This segmentation resolves the contradiction by enabling flexible configuration changes while maintaining continuous service data transmission for all DRBs.
2Quantity of substance
If DRBs with different QoS requirements share the same transmission channel, then resource utilization is improved, but QoS management becomes difficult
Solution Approach 1:
The patent segments the shared transmission channel into separate dedicated channels for each DRB, allowing each DRB to have its own QoS parameters independently configured and managed. This enables flexible QoS management for different service types while maintaining efficient resource utilization through dedicated channel assignment.
3Adaptability or versatility
If configuration changes are made to accommodate different QoS requirements, then QoS satisfaction is improved, but transmission channel re-configuration causes data interruption
Solution Approach 1:
By assigning separate dedicated channels to each DRB, the patent enables independent configuration changes for each DRB without requiring re-configuration of the entire transmission channel. This eliminates data interruption during configuration changes while maintaining full QoS satisfaction for all service types.
4Device complexity
If all DRBs use the same physical channel, then physical layer complexity is reduced, but handover operations become coupled and disruptive
Solution Approach 1:
The patent segments the physical channel into separate dedicated physical channels for each DRB. This allows independent handover operations for each DRB, enabling smooth and disruptive-free handover while maintaining manageable physical layer complexity through dedicated channel assignment.
Data Source
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AI summary
Embodiments of the present invention provide a radio bearer setup method and a device. The method includes: establishing, by a base station, an SRB with UE according to a configuration parameter of the SRB, and establishing, according to configuration parameters of N DRBs that carry N services, the N DRBs with the UE, where N≥2, N is an integer, M of the N DRBs occupy different transmission channels and different physical channels, 2≤M≤N, M is an integer, and a transmission channel and a physical channel occupied by the SRB are different from a transmission channel and a physical channel occupied by at least one of the N DRBs. Therefore, DRBs of same UE are separated. In a cell that the UE accesses, configurations of all DRBs do not change at the same time when one or some of the DRBs change. In this way, interruption in all service data between the UE and the base station and a call drop in a communication connection are avoided, thereby enhancing user experience, reducing a time delay, and improving a network throughput.