Base Station Terminal-Specific Bandwidth Configuration
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Solution Overview
Problem
Existing communication systems face challenges in fully utilizing nonstandard bandwidth without increasing the complexity of terminal implementation, as not all nonstandard bandwidth can be divided into standard bandwidth combinations, and introducing additional standard bandwidths complicates filter design.
Innovation Solution
Configuring terminal-specific standard bandwidth within the transmission bandwidth of a base station and notifying terminals of this configuration to perform data transmission, allowing for efficient use of available bandwidth without increasing implementation complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nonstandard bandwidth is divided into a combination of standard bandwidth, then bandwidth utilization is improved, but bandwidth waste occurs when nonstandard bandwidth cannot be perfectly divided
Solution Approach 1:
The base station segments the nonstandard bandwidth into multiple standard bandwidth carriers (e.g., dividing 8 MHz into 3 MHz + 5 MHz carriers). This segmentation allows the terminal to selectively aggregate only the standard bandwidth portions that match its capabilities, thereby improving bandwidth utilization while avoiding waste of the matched standard bandwidth portions.
2Adaptability or versatility
If more types of standard bandwidth are added to support nonstandard bandwidth, then bandwidth flexibility is improved, but terminal implementation complexity increases
Solution Approach 1:
The terminal is designed with universal filter capabilities that can handle standard bandwidth types. By configuring the terminal with a set of standard bandwidth filters (e.g., 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz), the terminal can universally support multiple bandwidth configurations through carrier aggregation, achieving bandwidth flexibility without requiring complex custom filters for each nonstandard bandwidth.
Solution Approach 2:
The terminal dynamically selects and aggregates standard bandwidth carriers based on the base station's configuration and available spectrum. Instead of having fixed filters for all possible bandwidths, the terminal adaptively configures its operating bandwidth by selecting from available standard bandwidth carriers, reducing implementation complexity while maintaining flexibility.
3Adaptability or versatility
If carrier aggregation is used to combine standard bandwidth into nonstandard bandwidth, then bandwidth adaptability is improved, but terminal filter design complexity increases
Solution Approach 1:
The terminal merges multiple standard bandwidth carriers through carrier aggregation to achieve the required bandwidth. By combining standard bandwidth carriers (e.g., aggregating 3 MHz and 5 MHz carriers to achieve 8 MHz operation), the terminal achieves bandwidth adaptability while using only standard, pre-designed filters, thereby avoiding the complexity of designing custom nonstandard bandwidth filters.
Data Source
AI summary
Embodiments of the present invention disclose a data transmission method, a base station, and a terminal. The method includes: configuring a band of standard bandwidth within transmission bandwidth of a base station as terminal-specific standard bandwidth when the transmission bandwidth of the base station is nonstandard bandwidth; notifying a terminal of configuration information of the terminal-specific standard bandwidth; and performing data transmission with the terminal within the terminal-specific standard bandwidth. The preceding technical solution is applicable to data transmission between a base station and a terminal in a communication system.