Mobile Relay Base Station Registration for 5G NR Authorization
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Solution Overview
Problem
Existing 5G systems lack support for mobile base station relays using new radio (NR) wireless access, particularly in scenarios where mobile base station relays need authorization policies and configurations to attach to networks and serve as relays, and there is a need for efficient UE mobility between base station relays and other nodes.
Innovation Solution
Implementing a dynamic provisioning mechanism to provide mobile base station relays with authorization policies and configurations, supporting registration procedures, and enhancing UE mobility through techniques such as authorization policies, PLMN-related operations, and efficient mobility management between mobile base station relays and other network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing 5G systems are used without enhancements, then system simplicity is maintained, but support for mobile base station relays using new radio (NR) wireless access is lacking
Solution Approach 1:
The patent extends the existing 5G registration procedure to support multiple device types including mobile base station relays, UE-to-Network relays, and IAB nodes. The same registration message structure and procedure is used universally for all these device types, allowing the system to support diverse functions without creating separate complex procedures for each device category.
Solution Approach 2:
The patent introduces specific parameters within the existing registration request message (such as mobilityIndication and relayIndication fields) to differentiate mobile base station relay devices from other device types. By modifying parameters within the existing message structure rather than creating new message types, the system achieves enhanced functionality with minimal added complexity.
2Productivity
If mobile base station relays are deployed without authorization policies and configurations, then deployment speed is increased, but proper network attachment and relay functionality cannot be ensured
Solution Approach 1:
The patent implements a registration procedure where mobile base station relays obtain authorization policies and configurations from the network before deploying relay services. The network provides these parameters in advance during the registration phase, ensuring that relays are properly authorized and configured before they begin serving UEs, thus maintaining reliability without slowing deployment.
Solution Approach 2:
The mobile base station relay autonomously performs the registration procedure with the network to obtain its own authorization policies and configurations. The relay device independently manages its registration and receives necessary parameters without requiring manual configuration, enabling rapid self-deployment while ensuring proper network attachment through standardized procedures.
3Ease of operation
If UE mobility management for mobile base station relays is not enhanced, then system complexity is reduced, but efficient mobility between relays and network nodes cannot be achieved
Solution Approach 1:
The patent extends existing mobility management procedures to handle mobile base station relays alongside regular UEs and IAB nodes. The same mobility indication parameters and handover procedures are used universally across all device types, allowing efficient mobility management for relays without creating separate complex mobility protocols specifically for relay devices.
Solution Approach 2:
The network acts as an intermediary that manages mobility for mobile base station relays through the standardized registration and handover procedures. The network receives mobility indications from relays and coordinates movements between relays and network nodes, simplifying relay mobility management while maintaining efficient operation through centralized network control.
Data Source
AI summary
A user equipment (UE) configured to transmit a registration request to a base station of a network, the registration request including access node (AN) parameters comprising an indication of whether the UE intends to operate as a mobile base station relay and receive a response to the registration request from the network. An access and mobility management function (AMF) configured to receive a message from a radio access network (RAN), the message comprising an indication of whether a user equipment (UE) intends to operate as a mobile base station relay and transmit a response to the message to the RAN.