Core Network Ping for Parallel Service Setup
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Solution Overview
Problem
Current communication networks experience significant latency due to sequential execution of terminating service handling procedures and paging procedures when setting up services for User Equipment (UE) in idle mode, leading to increased service setup times.
Innovation Solution
Implementing a method where a serving core network node sends a ping message to the target UE in response to a service setup request prior to completing the terminating service handling procedure, allowing the paging procedure to be executed in parallel with the service handling, thereby reducing the overall delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the terminating service handling procedure is completed before sending the paging message to the target UE, then the service setup request can be properly processed, but the total service setup time increases due to sequential execution
Solution Approach 1:
The network node sends a preliminary indication message to the target UE before completing the terminating service handling procedure, triggering the UE to perform preliminary actions (such as preparing to transition from idle mode) in advance. This allows the paging procedure to be executed in parallel with the service handling procedure, reducing the total service setup time while maintaining proper processing sequence through coordinated message exchange.
2Productivity
If the network node waits for the terminating service handling procedure to complete before initiating the paging procedure, then proper service processing is ensured, but the overall delay increases
Solution Approach 1:
The network node initiates the paging procedure continuously alongside the terminating service handling procedure by sending an indication message that triggers parallel execution. This continuous parallel action eliminates idle waiting time while ensuring that both procedures complete their respective functions, thereby improving service setup efficiency without increasing total delay.
3Ease of operation
If the UE is paged while in idle mode, then the UE can be reached with minimal disruption, but additional delay is introduced to transition the UE from idle to connected state
Solution Approach 1:
The indication message sent to the target UE in idle mode contains information that triggers the UE to perform preliminary actions, such as preparing connection resources or transitioning to a connected state in advance. This preliminary action reduces the actual connection establishment delay when the paging procedure completes, while still allowing the UE to be reached in its current idle state, thus maintaining ease of operation.
Data Source
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AI summary
Embodiments herein relate to a method performed by a serving core network node (130, 140) in a communications network, for handling a service setup for a target UE (120) located in the communications network (100). The serving core network node (130, 5 140) receives a service setup request directed towards the target UE (120). The serving core network node (130, 140) sends a ping message to the target UE (120) in response to the service setup request prior to a completion of a terminating service handling procedure of the serving network, wherein the terminating service handling procedure is completed when the service setup request is forwarded from a serving core network 10 towards the target UE (120).