Network Device System Information Scheduling Method
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Solution Overview
Problem
In LTE systems, network devices periodically send system information, which may not be required by all terminal devices, leading to resource waste and suboptimal resource utilization.
Innovation Solution
A method and device for information transmission where a network device sends scheduling information for system information, allowing terminal devices to receive only the necessary system information based on the scheduling information, thereby reducing unnecessary transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device periodically sends system information to all terminal devices, then all terminal devices can obtain the system information, but resource waste increases and resource utilization rate decreases
Solution Approach 1:
The system information is segmented into common system information and dedicated system information. Common system information is broadcast to all terminal devices, while dedicated system information is sent only to specific terminal devices that require it. This segmentation resolves the contradiction by ensuring reliable delivery of necessary information while avoiding waste of resources on unnecessary transmissions.
Solution Approach 2:
The patent implements dynamic scheduling of system information transmission. The network device determines whether to send system information based on terminal devices' requests and current network conditions, rather than following a fixed periodic schedule. This dynamic approach ensures information is delivered when needed while conserving resources when not required, resolving the contradiction between reliability and resource utilization.
2Loss of information
If the network device periodically sends system information, then terminal devices can always access the latest system information, but signaling overhead increases
Solution Approach 1:
Instead of sending complete system information periodically to all terminal devices, the network device sends only the specific system information that terminal devices request. This partial action approach reduces signaling overhead significantly while still providing terminal devices with the freshness and completeness of information they actually need, resolving the contradiction between information freshness and signaling overhead.
Solution Approach 2:
Terminal devices actively request the system information they need from the network device, rather than passively receiving periodic broadcasts. This self-service mechanism ensures that signaling overhead is minimized by only transmitting information when and what it is needed, while still maintaining information freshness through on-demand updates.
3Ease of operation
If the network device sends system information in a broadcast manner, then all terminal devices receive the information, but resource utilization rate decreases due to unnecessary transmissions
Solution Approach 1:
The patent segments system information distribution into broadcast and unicast modes. Common system information is distributed via broadcast to all terminal devices, maintaining ease of operation. Dedicated system information is distributed via unicast only to specific terminal devices that require it, improving resource utilization rate by eliminating unnecessary transmissions.
Solution Approach 2:
The patent implements dynamic selection between broadcast and unicast transmission modes based on the type of system information and the specific needs of terminal devices. This dynamic approach maintains the operational simplicity of broadcast while improving resource utilization through targeted unicast transmissions when appropriate, resolving the contradiction between ease of operation and resource utilization rate.
Data Source
AI summary
Provided in the embodiment of the present application is an information transmission method and device. The method comprises: a network equipment sends scheduling information of system information; and the network equipment sends the system information according to the scheduling information. The method and the device can save signaling overheads and increase the utilization rate of resources.