Radio Access Bearer Segmentation for Relay UE Traffic Differentiation
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Solution Overview
Problem
Current methods for relaying traffic via a UE-to-Network relay in telecommunication networks fail to distinguish between traffic related to the relay itself and traffic related to remote UEs using the relay for network connection.
Innovation Solution
A method is introduced to establish a connection between a remote UE and a telecommunication network via a relay capable UE, by creating distinct Radio Access Bearers for the relay capable UE and the remote UE, allowing the network to differentiate and manage their traffic separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a single Radio Access Bearer is used for both the relay capable UE and the remote UE, then the device complexity is reduced, but the network cannot distinguish between traffic from the relay capable UE and the remote UE
Solution Approach 1:
The patent segments the Radio Access Bearer into two distinct bearers: a first Radio Access Bearer for the relay capable UE and a second Radio Access Bearer for the remote UE. This segmentation allows the network to differentiate traffic sources while maintaining separate management for each UE type, resolving the contradiction between traffic distinguishability and system complexity.
Solution Approach 2:
The relay capable UE acts as an intermediary between the remote UE and the network. The dual bearer structure enables the relay capable UE to forward traffic from the remote UE while maintaining its own direct connection to the network, allowing traffic differentiation without requiring complex changes to the overall network architecture.
2Ease of operation
If conventional mobility management procedures are used without distinguishing bearers, then the system operation is simpler, but mobility management and quality of service control become difficult
Solution Approach 1:
By segmenting the bearer structure into separate first and second Radio Access Bearers, the patent enables the network to apply conventional mobility management procedures independently to each bearer. This segmentation allows standard procedures to be used while maintaining the ability to manage mobility and quality of service for each UE type separately.
3Reliability
If the remote UE appears as a conventional connection, then the ease of operation is improved, but the network cannot implement proper encryption and quality of service control
Solution Approach 1:
The relay capable UE serves as an intermediary that enables the remote UE to appear as a conventional connection while actually maintaining a distinct second Radio Access Bearer. This intermediary structure allows the network to implement proper encryption and quality of service control for the remote UE's traffic while preserving the simplicity of conventional connection appearance for the remote UE.
Solution Approach 2:
The patent segments the connection structure into two separate bearers, allowing the network to apply different encryption and quality of service policies to each bearer while maintaining the appearance of a conventional single connection from the remote UE's perspective.
Data Source
AI summary
A method of establishing a connection between a remote User Equipment, UE, and a telecommunication network via a relay capable UE, wherein said telecommunication network comprises a core network and an access network, and wherein said connection is established using a Remote Radio Access Bearer between the remote UE, via a relay capable UE, via an access node in the access network, and the core network.