Frequency Band Switching in 5G User Equipment
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Solution Overview
Problem
In 5G communication systems, there is a need for efficient frequency band switching in user equipment to manage varying data traffic demands and reduce power consumption, as existing methods lack flexibility in adapting to different traffic conditions and do not effectively utilize bandwidth parts.
Innovation Solution
The method involves configuring primary and secondary frequency bands with the user equipment, allowing switching between them based on dedicated signaling, timers, or traffic conditions, without changing the central frequency point or physical layer channel configurations, to optimize power consumption and adapt to changing traffic needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequency band switching is performed to manage varying data traffic demands, then adaptability to traffic conditions is improved, but device complexity increases due to multiple frequency band configurations
Solution Approach 1:
The patent divides the frequency band into multiple bandwidth parts (BWPs), each with different bandwidth characteristics. The user equipment can be configured with multiple BWPs (e.g., first BWP with larger bandwidth, second BWP with smaller bandwidth) and switch between them based on traffic conditions. This segmentation allows the system to adapt to varying data traffic demands while managing device complexity through structured configuration management.
2Use of energy by moving object
If bandwidth switching is performed to reduce power consumption during low traffic, then energy efficiency is improved, but switching time is increased due to configuration changes
Solution Approach 1:
The patent pre-configures multiple bandwidth parts with different bandwidth characteristics before traffic conditions change. When switching is needed, the user equipment can quickly activate a pre-configured BWP without extensive reconfiguration. This preliminary configuration reduces the actual switching time while enabling power consumption optimization by selecting appropriate BWPs based on traffic conditions.
3Productivity
If multiple frequency bands are configured to handle dynamic traffic changes, then productivity is improved, but signaling overhead is increased for band management
Solution Approach 1:
The patent designs the bandwidth part configuration system to serve multiple functions: it enables adaptability to different traffic conditions, facilitates power consumption optimization, and supports efficient data transmission. The same BWP configuration mechanism handles both uplink and downlink bandwidth adjustments, reducing redundant signaling while improving overall system productivity through multi-functional bandwidth management.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides method for frequency band switching performed by a user equipment and the user equipment. The method for frequency band switching performed by the user equipment includes: acquiring a configuration of one or more first frequency bands and one or more second frequency bands; performing switching between the first frequency band and the second frequency band.