Overlapping Component Carriers for Spectrum Utilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies due to unused bandwidth resulting from purchasing rights to odd amounts of spectrum that do not align with specified bandwidths defined by 3GPP standards, leading to spectrum waste and inefficient use of network resources.
Innovation Solution
Implementing overlapping component carriers within the purchased bandwidth, where each carrier has a frequency band that overlaps with another, allowing for efficient use of the entire network bandwidth without extending into neighboring systems, and managing signal transmission to optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If carrier aggregation is used to support bandwidths larger than 20 MHz, then data rates are improved, but device complexity increases due to managing multiple component carriers
Solution Approach 1:
The patent combines multiple component carriers (CC1 and CC2) into a unified carrier aggregation structure where both carriers can be simultaneously active. The base station transmits synchronization signal blocks on both carriers with different periodicities, allowing user equipment to efficiently utilize aggregated bandwidth while the network manages the complexity of coordinating multiple carriers through centralized control.
2Reliability
If synchronization signal blocks are transmitted on both component carriers with the same periodicity, then signal coverage is improved, but resource efficiency deteriorates due to redundant transmissions
Solution Approach 1:
The patent applies different transmission periodicities for synchronization signal blocks on different component carriers based on local conditions. Specifically, CC1 uses a first periodicity while CC2 uses a second periodicity that is different from the first. This allows the network to optimize resource usage on each carrier individually while maintaining adequate coverage, transmitting synchronization signals more frequently on carriers that need them and less frequently on others.
3Productivity
If overlapping component carriers are implemented to utilize odd amounts of spectrum, then bandwidth utilization is improved, but interference management becomes more difficult
Solution Approach 1:
The patent segments the overlapping bandwidth into distinct component carriers (CC1 and CC2) with non-overlapping frequency ranges within the aggregate. This segmentation allows independent management and configuration of each carrier, simplifying interference management while achieving efficient utilization of the total available spectrum including odd amounts that would otherwise be wasted.
Data Source
AI summary
A new radio base station establishes a first and a second component. The first and second component carrier overlap each other. The base station transmits first synchronization signal blocks on the first component carrier. The base station transmits second synchronization signal blocks on the second component carrier interleaved in time with the first synchronization signal blocks.