Base Station Spectrum Migration for Low Utilization
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Solution Overview
Problem
Existing communication systems face low spectrum utilization when a terminal is covered by multiple cells, particularly when the primary cell's spectrum resources are weak or congested, leading to inefficient data transmission.
Innovation Solution
A method where a base station broadcasts a service migration message to a terminal using a secondary spectrum, allowing the terminal to receive service data on an alternative spectrum, either licensed or unlicensed, and sends configuration information for dedicated subframes to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If service data is transmitted only through the primary cell's spectrum, then the transmission method is simple, but spectrum utilization is low and transmission rate is slow
Solution Approach 1:
The patent combines multiple spectrum resources (primary cell spectrum and secondary cell spectrum) into a unified transmission system. The base station transmits service data through both the primary cell and secondary cell simultaneously, merging multiple transmission paths to increase overall transmission rate and spectrum utilization without significantly increasing system complexity.
Solution Approach 2:
The patent introduces a new dimension of transmission by utilizing secondary cell spectrum in addition to the primary cell spectrum. This dimensional expansion allows the system to transmit data through multiple spectral dimensions simultaneously, thereby improving transmission rate and spectrum utilization.
2Productivity
If only primary cell spectrum is used for transmission, then resource allocation is simple, but spectrum utilization is inefficient when resources are weak or congested
Solution Approach 1:
The patent implements dynamic resource allocation by enabling the base station to flexibly utilize both primary cell and secondary cell spectrum resources based on real-time conditions. The system dynamically adjusts transmission parameters and can switch between different spectrum resources to optimize utilization efficiency.
Solution Approach 2:
The patent creates a universal transmission system where the base station can utilize multiple spectrum resources (both licensed and unlicensed) for service data transmission. This multi-functional approach allows the system to adapt to different network conditions and maximize spectrum utilization efficiency.
3Productivity
If service data transmission uses only licensed spectrum, then transmission reliability is high, but spectrum utilization is low when licensed spectrum is congested
Solution Approach 1:
The patent segments the spectrum into different types (licensed and unlicensed) and allocates different transmission functions to each. Licensed spectrum provides reliable transmission for critical data, while unlicensed spectrum handles additional data traffic. This segmentation allows the system to maintain reliability while improving overall spectrum utilization.
Solution Approach 2:
The patent introduces unlicensed spectrum as an intermediary resource to complement licensed spectrum. When licensed spectrum is congested, the unlicensed spectrum acts as an additional transmission path, mediating the load and improving overall spectrum utilization while maintaining transmission reliability through the licensed spectrum for critical data.
Data Source
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AI summary
Embodiments of the present invention provide a service data transmission method and an apparatus, and relate to the communications field, so as to resolve a problem that spectrum utilization in the prior art is relatively low. The method includes: obtaining, by a base station, use permission of at least one first spectrum; broadcasting, by the base station, a service migration message to a terminal by using a second spectrum, where the service migration message is used to instruct the terminal to receive service data on the at least one first spectrum; and sending, by the base station, the service data to the terminal by using the at least one first spectrum. The embodiments of the present invention are applicable to a case in which a base station sends service data to a terminal.