IMS Service PDU Session Segmentation in 5G Networks
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Solution Overview
Problem
Current 5G system architecture lacks efficient methods for performing Internet Protocol (IP) Multimedia Subsystem (IMS) services, specifically in configuring and communicating data radio bearers and signaling messages for IMS services within wireless communication systems.
Innovation Solution
A communication device and method that utilize storage devices and processing circuits to manage Protocol Data Unit (PDU) Sessions, configuring data radio bearers and communicating IMS signaling and data packets by transmitting and receiving specific messages to establish and maintain IMS services within the 5G network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple PDU Sessions are established for IMS services, then reliability of IMS service transmission is improved, but device complexity increases
Solution Approach 1:
The patent segments IMS service transmission into two separate PDU Sessions: one dedicated to IMS signaling messages and another dedicated to IMS data packets. This segmentation ensures that signaling and data traffic are handled independently, improving reliability by preventing interference between the two types of traffic while maintaining manageable device complexity through clear functional separation.
2Reliability
If multiple DRBs are configured for different IMS traffic types, then service quality is improved, but ease of operation deteriorates
Solution Approach 1:
The patent configures separate Data Radio Bearers (DRBs) for different IMS traffic types: one DRB for IMS signaling messages and another DRB for IMS data packets. This segmentation improves service quality by providing dedicated transmission paths for each traffic type, ensuring appropriate quality of service for signaling versus media data, while the clear functional separation makes operation and management more straightforward.
Data Source
AI summary
A network for performing an IMS service with a communication device comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The storage device stores, and the processing circuit is configured to execute instructions of receiving a Protocol Data Unit (PDU) Session Establishment Request message requesting to establish a PDU Session for the IMS service, from the communication device; transmitting a PDU Session Establishment Accept message configuring the PDU Session to the communication device; configuring a plurality of data radio bearers (DRBs) associated to the PDU Session to the communication device; communicating a plurality of IMS signaling messages for the IMS service on a first DRB of the plurality of DRBs with the communication device; and communicating a plurality of IMS data packets for the IMS service on a second DRB of the plurality of DRBs with the communication device.