UE CBR Exchange for Narrow-Band Frequency Adaptation
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Solution Overview
Problem
In wireless communication systems, particularly in V2X scenarios, there is a need for efficient methods to provide channel busy ratio (CBR) information and adjust frequency bands based on CBR to ensure effective communication between UEs with different bandwidths, especially considering power-saving UEs operating in narrower frequency bands.
Innovation Solution
A method where a first UE receives CBR information from a second UE and determines a frequency band change based on its own CBR information and the received CBR information, allowing for frequency band adjustments to optimize communication, including power-saving UEs operating in narrower bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a UE operates in a narrower frequency band to save power, then power consumption is reduced, but CBR information compatibility with UEs operating in wider frequency bands deteriorates
Solution Approach 1:
The patent segments CBR information by frequency band, allowing UEs to generate and exchange CBR information specific to their operating bandwidths. Narrower-band UEs generate CBR information for their specific band, while wider-band UEs generate CBR information for their larger band, enabling compatible information exchange without requiring all UEs to operate in the same frequency range.
Solution Approach 2:
The patent applies local quality by allowing different UEs to operate with different CBR information characteristics based on their specific frequency band requirements. Each UE generates CBR information tailored to its local operating conditions and bandwidth, rather than requiring a uniform approach across all UEs.
2Adaptability or versatility
If CBR information is generated based on different frequency bands, then UEs can operate independently in their optimal bands, but communication coordination between UEs with different bandwidths becomes difficult
Solution Approach 1:
The patent uses frequency band information as an intermediary element that enables coordination between UEs with different bandwidths. By including frequency band identifiers with CBR information, the system mediates the interaction between narrower-band and wider-band UEs, allowing them to understand each other's operating context and coordinate resource usage effectively.
Solution Approach 2:
The patent creates a universal CBR information exchange mechanism that works across different frequency band configurations. The same basic CBR information structure and exchange protocol serves both narrower-band and wider-band UEs, making the system multi-functional and adaptable to various UE configurations without requiring separate coordination mechanisms.
Data Source
AI summary
An embodiment relates to a method for operating a first user equipment (UE) in a wireless communication system, the method comprising the steps of: receiving, by the first UE, second CBR information from a second UE; and determining a change in a frequency band on the basis of the second CBR information and first CBR information generated by the first UE, wherein a frequency band of the first UE is narrower than a frequency band of the second UE, and the second CBR information is generated by the second UE on the basis of the frequency band of the first UE.