Bandwidth Part Configuration Using Time-Concatenated Resources
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Solution Overview
Problem
Existing communication systems face challenges in mapping channels or signals with great bandwidth within limited bandwidth scenarios, such as those requiring less than 5 MHz, due to insufficient frequency domain resources and issues with synchronization signal blocks and control resource sets exceeding system bandwidth.
Innovation Solution
Frequency domain resources in different time domains are concatenated to create a concatenated bandwidth that accommodates channels or signals within the system bandwidth, allowing for flexible configuration of bandwidth parts (BWPs) to meet scheduling requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If frequency domain resources are limited to less than 5 MHz, then system bandwidth is reduced, but available frequency domain resources become insufficient for mapping channels and signals
Solution Approach 1:
The patent transitions from a single time-frequency resource dimension to multiple time periods, concatenating frequency domain resources across different time periods to create a virtual extended bandwidth. This allows the system to maintain a narrow actual bandwidth while providing sufficient frequency domain resources for channel and signal mapping by utilizing resources across multiple time slots.
Solution Approach 2:
The patent changes the parameter of bandwidth configuration by introducing the concept of concatenated bandwidth that spans multiple time periods. Instead of fixed single-time bandwidth allocation, the system dynamically configures bandwidth parts that can be concatenated across M time periods, effectively increasing available frequency domain resources without expanding the physical bandwidth.
2Ease of operation
If synchronization signal block bandwidth exceeds system bandwidth, then initial access is enabled, but resource mapping becomes impossible within limited bandwidth
Solution Approach 1:
The patent resolves the bandwidth mismatch for synchronization signal blocks by mapping them across multiple time periods. The synchronization signal block that would normally require more frequency resources than available in a single time slot is instead distributed and concatenated across M time periods, enabling initial access while respecting the limited system bandwidth constraint.
3Loss of information
If control resource set bandwidth exceeds system bandwidth, then control signaling is transmitted, but frequency domain resources are insufficient
Solution Approach 1:
The patent enables control resource set mapping by extending the frequency domain resource availability through concatenation across multiple time periods. Control signaling that requires more frequency resources than available in a single time slot can be mapped by utilizing the concatenated bandwidth from M time periods, ensuring complete control signaling transmission without resource insufficiency.
4Productivity
If bandwidth part is configured to meet scheduling requirements, then resource allocation is optimized, but frequency domain resources of single time period are insufficient
Solution Approach 1:
The patent enables efficient bandwidth part configuration for scheduling by concatenating frequency domain resources across M time periods. This provides sufficient frequency domain resources for flexible bandwidth part allocation while maintaining high scheduling efficiency, as the concatenated bandwidth can be dynamically configured to meet various scheduling requirements without being constrained by single-time-period resource limits.
Data Source
AI summary
A bandwidth part (BWP) determining method, including: determining the BWP of a user equipment, where the BWP includes frequency domain resources of M time-frequency resources, and M is an integer greater than 1.