On-Demand SIB Delivery Modes for Lower 5G Signaling Overhead
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Solution Overview
Problem
Existing systems for delivering system information in 5G networks are inefficient, particularly when other system information blocks (SIBs) are not broadcast but sent on demand, leading to suboptimal resource usage and increased signaling overhead.
Innovation Solution
User equipment devices can either actively request on-demand delivery of SIBs or wait for another device to make the request, based on their capabilities and network conditions, reducing battery consumption and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If user equipment actively requests on-demand delivery of SIBs, then delivery speed is improved, but signaling overhead increases
Solution Approach 1:
Multiple user equipment devices share a single requested SIB delivery, where one device makes the request and others receive the same information without making separate requests, thereby reducing overall signaling overhead while maintaining fast delivery
Solution Approach 2:
User equipment monitors for requests made by other devices and prepares to receive the requested SIBs in advance, allowing the system to optimize delivery timing and reduce redundant signaling before actual information transfer occurs
2Loss of information
If user equipment waits for another device to request SIBs, then signaling overhead is reduced, but delivery time increases
Solution Approach 1:
User equipment monitors the channel for requests made by other devices and prepares reception in advance, allowing the system to reduce signaling overhead while minimizing waiting time through proactive preparation
Solution Approach 2:
The system uses feedback from monitoring other devices' requests and network responses to dynamically adjust when to request SIBs independently versus when to wait for broadcast, optimizing the balance between delivery time and signaling overhead
3Reliability
If base station broadcasts other SIBs periodically, then delivery reliability is improved, but resource usage efficiency deteriorates
Solution Approach 1:
The base station dynamically switches between periodic broadcasting and on-demand unicast delivery based on real-time network conditions and user equipment needs, allowing the system to maintain reliability while optimizing resource usage efficiency through adaptive delivery modes
Solution Approach 2:
The system changes the delivery parameter from periodic broadcasting to on-demand unicast based on specific conditions such as the number of requesting devices and network load, thereby improving resource efficiency while maintaining delivery reliability
Data Source
AI summary
The disclosed technology is directed towards improving system usage of a communication network with respect to on-demand system information delivery for certain user equipment devices. When a first user equipment requests on-demand delivery of other system information block data (e.g., SIB2, SIB3, and so on) from a base station, a second device, and possibly other devices, can wait to receive the other system information block data via a broadcast response to the request. Configuration data can indicate that a user equipment device is to operate in the requesting mode or the non-requesting mode. While operating in the non-requesting mode, a device can request the data if not timely received. A device can change modes based on condition data, e.g., QoS of an application, remaining battery power and the like. The disclosed technology can conserve both user equipment resources and network resources.