NIDD Data Delivery Deferral Based on RAN Power Source Status
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Solution Overview
Problem
In 3GPP wireless communication systems, Non-Internet Protocol (IP) Data Delivery (NIDD) for IoT devices faces challenges in efficiently managing data delivery based on the power source status of Radio Access Network (RAN) nodes, leading to increased operational expenses when RAN nodes operate on secondary power sources.
Innovation Solution
Implementing a method to defer or prioritize NIDD data delivery based on the power source status of RAN nodes, where data is delivered only when the RAN node is operating on a primary power source, and using override indications for critical messages, thereby optimizing network operations and reducing operational expenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If NIDD data delivery is performed regardless of RAN node power source status, then data delivery reliability is improved, but operational expenses increase when RAN nodes operate on secondary power sources
Solution Approach 1:
The system dynamically adjusts data delivery behavior based on the RAN node's power source status. When operating on a secondary power source, the system defers non-critical NIDD data delivery, while maintaining delivery of critical data. This dynamic adaptation resolves the contradiction by making the system flexible rather than static, allowing it to optimize energy consumption without completely sacrificing reliability.
Solution Approach 2:
The system changes the delivery parameter (whether to deliver NIDD data) based on the power source status parameter. By monitoring the power source status and adjusting the delivery decision accordingly, the system resolves the contradiction between maintaining reliable delivery and reducing energy loss during secondary power operation.
2Loss of energy
If NIDD data delivery is deferred when RAN node uses secondary power source, then operational expenses are reduced, but data delivery time increases
Solution Approach 1:
The system applies different quality levels of service to different types of data based on their criticality. Critical data receives immediate delivery regardless of power source status, while non-critical data is deferred during secondary power operation. This local differentiation resolves the contradiction by ensuring that only non-urgent data contributes to the time delay, while important data maintains its delivery timing.
Solution Approach 2:
The system implements feedback mechanisms where the RAN node monitors its own power source status and provides this information to the core network. This feedback enables the core network to make informed decisions about data delivery timing, resolving the contradiction by allowing the system to adapt to changing power conditions while prioritizing critical communications.
3Adaptability or versatility
If all NIDD messages are delivered with equal priority, then communication fairness is improved, but network efficiency decreases due to unnecessary transmissions during secondary power operation
Solution Approach 1:
The system assigns different priority levels to different NIDD messages based on their criticality. Critical messages are delivered with high priority regardless of power source status, while non-critical messages are deferred during secondary power operation. This local quality differentiation resolves the contradiction by ensuring that fairness is maintained for critical communications while improving overall network efficiency through selective deferral of non-essential traffic.
Solution Approach 2:
The system applies partial action by selectively delivering only critical NIDD messages during secondary power operation, rather than delivering all messages. This partial delivery approach resolves the contradiction by maintaining essential communications (ensuring fairness where needed) while avoiding unnecessary transmissions that would reduce network efficiency.
Data Source
AI summary
Systems and methods are disclosed herein that relate to deferring delivery of non-Internet Protocol (IP) data in a wireless communication system via a Non-IP Data Delivery (NIDD) procedure based on a power source status of a serving Radio Access Network (RAN) node of a target wireless device. In some embodiments, a method of operation of a network node comprises receiving, from an exposure function, a NIDD request comprising data from an application server to be delivered to a wireless device via a NIDD procedure. The method further comprises making a determination as to whether to deliver the data to the wireless device via the NIDD procedure based on a power source status of a RAN node associated with the wireless device. In this manner, delivery of the non-IP data can be deferred depending on the power source status of the RAN node.