Relay UE PDN Connection via Service Codes
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Solution Overview
Problem
Current 5G communication systems face challenges in establishing efficient packet data network (PDN) connections for relay user equipment (UE), particularly in scenarios where relay UE needs to create a PDN connection for remote UE, especially outside network coverage areas.
Innovation Solution
A method and apparatus for a first terminal to perform a UE-to-network relay function by receiving and transmitting a relay service code, enabling the creation of a PDN connection for remote UE and facilitating effective UE-to-network relay operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay UE creates PDN connection for remote UE outside network coverage areas, then network connectivity is improved, but device complexity increases
Solution Approach 1:
The relay UE acts as an intermediary device between remote UE and the network. It establishes a PDN connection on behalf of remote UE and forwards data packets between remote UE and the network, enabling network connectivity for devices outside coverage areas while managing the complexity of relay operations through standardized protocols
Solution Approach 2:
The relay UE performs multiple functions including establishing PDN connections, forwarding user data, managing IP addresses, and handling signaling messages. This multi-functionality allows a single device to provide comprehensive network access services to multiple remote UEs, improving reliability while consolidating complexity in a standardized relay mechanism
2Ease of operation
If relay service codes are used for PDN connection creation, then ease of operation is improved, but loss of information increases
Solution Approach 1:
Relay service codes are pre-configured and stored in the relay UE before actual PDN connection establishment. These codes contain essential relay-related information including IP address allocation rules, APN settings, and forwarding parameters. By preparing this information in advance, the relay UE can quickly establish connections while preserving all necessary configuration data
Solution Approach 2:
The relay service code acts as a template or copy of the complete relay configuration. Instead of transmitting complex relay-related information for each connection, the standardized service code replicates essential parameters, enabling easy operation while maintaining information integrity through structured data formats that include all necessary relay attributes
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.The method includes transmitting a service authorization request message to a first network device, the first network drive including a proximity-based service (ProSe) function, and receiving a service authorization response message from the first network device. The first terminal is a relay terminal capable of performing a UE-to-network relay function.