Network Capability Information Transmission for Wireless Signaling Overhead Reduction
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in information transmission due to high signaling overhead and resource waste, as terminal devices select cells based on maximum signal strength without knowing network capability information, leading to potential support for features like carrier aggregation being unused.
Innovation Solution
A method where network devices proactively send network capability information to terminal devices, reducing the need for periodic broadcasting and ensuring only relevant capability information is transmitted based on the terminal's service requirements, thereby improving transmission efficiency and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If network capability information is periodically broadcast through system information, then terminal devices can obtain capability information of network devices, but the signaling overhead increases and resource waste occurs
Solution Approach 1:
The network device proactively sends capability information to the terminal device before the terminal device needs to make a cell selection or reselection decision. This preliminary transmission eliminates the need for periodic broadcasting and allows the terminal to immediately use the capability information for informed cell selection, reducing signaling overhead and resource waste.
Solution Approach 2:
The patent extracts only the necessary capability information from the network device and sends it directly to the terminal device through dedicated signaling, rather than broadcasting all system information periodically. This extraction approach transmits only the relevant data needed for cell selection, reducing unnecessary signaling overhead.
2Loss of information
If network capability information is periodically broadcast, then all terminal devices can access the information, but resource utilization rate decreases
Solution Approach 1:
The terminal device requests or receives capability information on-demand rather than relying on periodic broadcasts. The network device sends the information when triggered by terminal needs, making the system self-adaptive to actual requirements and improving resource utilization by avoiding unnecessary transmissions.
Solution Approach 2:
The transmission mode changes from periodic broadcasting to on-demand unicast/multicast transmission. This parameter change in the information delivery mechanism allows the system to adapt transmission frequency and timing to actual needs, improving resource utilization while ensuring capability information availability.
3Ease of operation
If terminal device selects cell based on maximum signal strength, then cell selection is simple, but the terminal may not select a cell that supports required features
Solution Approach 1:
The terminal device obtains capability information of neighboring network devices before making the cell selection decision. This preliminary knowledge allows the terminal to filter candidate cells based on both signal strength and feature compatibility, ensuring that the selected cell can support required services while maintaining simple selection criteria.
Solution Approach 2:
The cell selection criterion becomes dynamic by incorporating capability information. The terminal device adapts its selection process based on the specific capability requirements of different terminal types, making the selection both simple to execute and adaptive to feature needs.
Data Source
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AI summary
An embodiment of the present disclosure provides an information transmission method and device, the method comprising: a first network equipment sending to a terminal device network capability information of at least one network equipment, the at least one network equipment comprising the first network equipment and/or network equipment connected to the first network equipment. The embodiment of the disclosure can reduce signaling overheads, thereby avoiding resource wastage.