Base Station System Information Subgroup Targeting
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Solution Overview
Problem
Existing message broadcast methods in mobile communications networks broadcast system information to all user equipment, leading to unnecessary behavior as user equipment receives irrelevant information, and fail to reduce system information generated due to new technology requirements.
Innovation Solution
A method where a base station determines and broadcasts system subgroup information specific to user equipment groups, using beamforming and precoding to target relevant user equipment with information about nearby small cells and device-to-device communication resources, reducing unnecessary information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If same system information is broadcast to all UEs in a cell, then radio resource is saved, but user equipment receives unrelated messages and triggers unnecessary behavior
Solution Approach 1:
The patent segments system information into multiple subgroups (first system subgroup information, second system subgroup information, etc.) and broadcasts them to different user equipment groups separately. This allows each UE to receive only the relevant system information subgroup, avoiding unnecessary information reception while efficiently utilizing radio resources.
2Adaptability or versatility
If system information is broadcast to all user equipment, then all UEs can access network information, but system information generated for new technology requirements cannot be reduced
Solution Approach 1:
The patent applies local quality by assigning different system information subgroups to different user equipment groups based on their specific requirements. For example, D2D communication UEs receive system information related to device-to-device communication resources, while other UEs receive different system information. This ensures each UE group receives tailored information relevant to their specific technology requirements without increasing overall system information volume.
3Loss of information
If system information is customized for different user equipment groups, then irrelevant information is reduced, but system complexity increases
Solution Approach 1:
The patent implements a dynamic message broadcast mechanism where the base station dynamically determines which system information subgroup to broadcast based on the current UE group's requirements. The system can adaptively switch between different system information subgroups (first, second, third subgroups) depending on which UE group is currently active, providing customized information without requiring complex static configuration for all possible scenarios.
Data Source
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AI summary
Embodiments of the present invention disclose a message broadcast method, a base station, and user equipment. The message broadcast method includes: determining, by a base station, at least one piece of system subgroup information of system information of a first cell, where each piece of system subgroup information includes system information content that is applied to a user equipment group that corresponds to the system subgroup information; and broadcasting, to the user equipment group, the system subgroup information that corresponds to the user equipment group. In such a manner, system information that is generated due to a requirement of a new technology can be effectively reduced, and user equipment can be prevented from receiving information unrelated to the user equipment and triggering unnecessary behavior.