UE PS Data Off Status Reporting in Non-Allowed Areas
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, user equipment (UE) may be unable to report its Packet Switch (PS) Data Off status to the network when located in non-allowed areas, leading to outdated or incorrect information and potential communication disruptions.
Innovation Solution
The UE transmits a service request message to a network node, including service type information related to changes in its PS Data Off status, even if it is in a non-allowed area, allowing the network to receive and respond to the status update.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal is located in a non-allowed area, then the terminal cannot normally communicate with the network, but the terminal needs to report its PS data off status to maintain accurate network information
Solution Approach 1:
The patent uses a service request message as an intermediary carrier to transmit the PS data off status change indication from the terminal to the network node. This message structure allows the terminal to communicate status information even when located in a non-allowed area, effectively using the service request as a mediator to bridge the communication gap.
Solution Approach 2:
The terminal performs the status report transmission proactively before potentially leaving the non-allowed area or before the network needs the updated information. By sending the service request message with the PS data off status change indication as soon as the status changes, the terminal ensures the network receives accurate information in advance.
2Loss of information
If the terminal sends service request messages in non-allowed areas, then the network receives accurate PS data off status information, but this may increase signaling overhead and network load
Solution Approach 1:
The patent applies local quality by making the service request message contain specific localized information - only the PS data off status change indication is included when relevant, rather than sending complete service requests with all possible parameters. This reduces signaling overhead while ensuring the specific status information is transmitted.
Solution Approach 2:
The terminal sends partial service request messages that contain only the essential PS data off status change indication when in non-allowed areas, rather than transmitting complete service requests. This partial action approach reduces signaling overhead while still achieving the goal of updating the network with critical status information.
Data Source
AI summary
A method performed by a terminal operating in a wireless communication system. Based on that the terminal is located in a non-allowed area, and based on the terminal having a pending uplink signaling to inform a change in a Packet Switch (PS) data off status of the terminal, the terminal transmits a service request message to a network node. The service request message includes service type information that is related to the change in the PS data off status of the terminal. The terminal then receives, from the network node, a response message to the service request message.