LTE Base Station MIB Transmission Overhead Reduction
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Solution Overview
Problem
The existing Long Term Evolution (LTE) system experiences high power consumption in base stations due to excessive information overheads when transmitting Master Information Blocks (MIBs), which include multiple configuration parameters.
Innovation Solution
The method involves generating an MIB with reduced configuration parameters, specifically including first bandwidth indication information and a radio frame configuration field, and sending it using a time-frequency resource in the radio frame, allowing the base station to minimize information overheads and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station transmits MIB including multiple configuration parameters (system bandwidth information, frame number, PHICH configuration information), then the terminal device can obtain complete system information, but the information overheads and power consumption of the base station become excessively high
Solution Approach 1:
The patent segments the MIB information into two parts: a compact MIB transmitted by the base station containing only essential parameters (bandwidth indication and radio frame configuration field), and supplementary information that can be derived by the terminal device through local storage and matching. This segmentation reduces the information overhead in the transmitted MIB while maintaining completeness of system information.
Solution Approach 2:
The patent applies preliminary action by pre-storing multiple sets of configuration parameters (system bandwidth, frame number, PHICH configuration) in the terminal device before actual communication. When the terminal receives the compact MIB, it can quickly match the received parameters with pre-stored sets to derive complete system information without requiring the base station to transmit all parameters explicitly.
2Measurement precision
If the MIB includes detailed configuration parameters, then the terminal device can determine system configuration accurately, but the information overheads increase
Solution Approach 1:
The patent introduces an intermediary mechanism where the terminal device's pre-stored configuration parameter sets act as a mediator between the compact transmitted MIB and the complete system configuration. The terminal matches received MIB parameters with pre-stored sets to accurately determine system configuration, achieving both precision and reduced information overheads.
3Reliability
If the base station transmits complete MIB information, then system reliability is maintained, but the base station power consumption increases
Solution Approach 1:
The patent changes the parameters transmitted in the MIB from multiple detailed configuration parameters to a simplified set containing only bandwidth indication information and radio frame configuration field. The terminal device uses these changed parameters combined with pre-stored data to reconstruct complete system information, thereby reducing transmission energy while maintaining reliability.
Data Source
AI summary
The present invention provides an information transmission method and an apparatus, so as to resolve a problem of high power consumption of a base station resulted from excessively high information overheads for transmitting an MIB by the base station. The method includes: generating, by a base station, an MIB including first bandwidth indication information and a radio frame configuration field; and sending the MIB using a time-frequency resource in a radio frame. Compared with a conventional MIB including a plurality of configuration parameters such as system bandwidth information, a frame number of a radio frame for transmitting the MIB, and PHICH configuration information, the MIB transmitted by the base station in embodiments of the present invention includes two configuration parameters: the first bandwidth indication information and the radio frame configuration field.