5G Base Station System Information Delivery Mode Switching
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Solution Overview
Problem
In fifth generation (5G) networks, the on-demand delivery of system information blocks (SIBs) can lead to resource consumption issues due to collisions in requests from multiple user equipment devices, causing signaling overhead and battery consumption, especially when transitioning from idle to connected mode.
Innovation Solution
Implementing a dynamic system to adjust the broadcasting or on-demand responding of system information based on predicted network conditions, using decision logic at a central node or base station to switch between broadcasting and on-demand delivery, reducing resource consumption and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If on-demand delivery of system information blocks is implemented, then base station resource consumption is reduced, but signaling overhead and battery consumption increase due to request collisions from multiple user equipment devices
Solution Approach 1:
The patent implements dynamic switching between on-demand delivery and broadcasting modes based on real-time network conditions. The base station monitors the number of user equipment devices requesting system information and dynamically adjusts the delivery mode: when request count exceeds a threshold, it switches to broadcasting mode to avoid request collisions and reduce signaling overhead; when request count is low, it uses on-demand delivery to conserve base station resources.
Solution Approach 2:
The patent changes the delivery mode parameter (from on-demand to broadcasting) based on the number of user equipment devices requesting system information. This parameter change allows the system to adapt to varying network conditions and user density, optimizing the balance between resource consumption and signaling overhead.
2Productivity
If on-demand delivery is used to conserve base station resources, then resource efficiency improves, but network responsiveness deteriorates during peak transitions when multiple devices request information simultaneously
Solution Approach 1:
The system dynamically adjusts the information delivery mode based on real-time monitoring of user equipment request patterns. During peak transitions when multiple devices simultaneously request system information, the base station switches to broadcasting mode, which delivers information to all devices simultaneously, thereby maintaining network responsiveness while managing resource efficiency.
Solution Approach 2:
The base station proactively switches to broadcasting mode when it detects that the number of user equipment devices requesting system information exceeds a predefined threshold. This preliminary action prevents request collisions and ensures timely delivery of system information before network congestion occurs, maintaining network responsiveness during peak transitions.
3Speed
If broadcasting mode is used for system information delivery, then network responsiveness is maintained during peak transitions, but base station resource consumption increases
Solution Approach 1:
The patent implements dynamic mode switching that transitions from broadcasting to on-demand delivery when the number of user equipment devices requesting system information falls below a threshold. This ensures that broadcasting mode is used only when necessary to maintain network responsiveness, thereby minimizing base station resource consumption while preserving responsiveness during peak transitions.
Solution Approach 2:
The system changes the delivery mode parameter based on the density of user equipment devices. When device density is high, broadcasting mode is activated to ensure rapid information dissemination; when device density is low, the system switches to on-demand delivery to conserve base station resources, thus dynamically optimizing the trade-off between responsiveness and resource consumption.
4Productivity
If on-demand delivery is implemented, then system information is delivered efficiently to individual devices, but request collisions occur when multiple devices transition from idle to connected mode simultaneously
Solution Approach 1:
The base station dynamically switches from on-demand delivery to broadcasting mode when it detects that multiple user equipment devices are transitioning from idle to connected mode simultaneously. This dynamic adjustment prevents request collisions by delivering system information to all devices simultaneously through broadcasting, thereby ensuring reliable delivery while maintaining efficiency.
Solution Approach 2:
The base station proactively switches to broadcasting mode when it anticipates potential request collisions from multiple devices transitioning simultaneously. This preliminary anti-action prevents the harmful effect of request collisions before they occur, ensuring reliable information delivery to all devices while maintaining efficient resource utilization.
Data Source
AI summary
The disclosed technology is directed towards adjusting system information status from not broadcasting other system information block(s) to broadcasting, and vice-versa at a base station (e.g., a 5G gNB). The change can be based on network condition data, and can achieve more optimal network performance. When a base station is not broadcasting other system information, and a sufficient number of user equipment devices are expected to transition from idle to connected mode, a base station changes from the not broadcasting status (on demand responding) to broadcasting. A core network component can direct the change, after which the data sent as part of periodically broadcast minimum system information (SIB1) data. A paging message is transmitted to direct the user equipment devices to process the changed SIB1 data. The system information status can be reverted back to not broadcasting status when deemed by the network to be no longer appropriate.