Narrowband CORESET0 Resource Determination for 5G IoT
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Solution Overview
Problem
Current technologies do not provide solutions for obtaining and configuring a narrowband CORESET0 and determining the monitoring occasion of a narrowband Type0-PDCCH, which are essential for supporting narrowband User Equipment (UE) in 5G communication systems, particularly for Internet of Things (IoT) applications with bandwidths less than 100 MHz.
Innovation Solution
The method involves determining the frequency domain resource of a narrowband CORESET0 and/or the monitoring occasion of a narrowband Type0-PDCCH, using techniques such as offset calculations and table-based approaches to configure these resources, allowing narrowband UEs to receive and decode necessary system information effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard CORESET0 bandwidth is used for initial access, then system information can be transmitted, but narrowband UEs with bandwidth less than 100 MHz cannot properly receive and decode the system information
Solution Approach 1:
The patent segments the standard CORESET0 bandwidth into multiple narrowband parts, each suitable for different bandwidth capabilities. It introduces separate narrowband CORESET0 configurations with specific bandwidth parameters (e.g., 1.08 MHz, 1.4 MHz, 3 MHz, 5 MHz, 10 MHz) that can be independently selected based on UE capabilities, allowing narrowband UEs to access appropriate segments without being overwhelmed by the full bandwidth.
Solution Approach 2:
The patent applies local quality by providing differentiated CORESET0 configurations for different frequency ranges and UE types. It defines specific frequency domain resource allocations, subcarrier spacing, and cyclic shift values tailored to narrowband requirements in different frequency ranges (FR1, FR2), ensuring that each local configuration optimally suits the specific operational context.
2Ease of operation
If frequency domain resources of PDSCH carrying SIB1 are within initial active downlink BWP, then resource allocation is simplified, but narrowband UEs cannot access the necessary resources for initial access
Solution Approach 1:
The patent segments the initial active downlink BWP into narrowband portions and introduces separate narrowband BWP configurations. It defines specific bandwidth parameters (e.g., 1.08 MHz, 1.4 MHz, 3 MHz, 5 MHz, 10 MHz) for narrowband BWPs that can accommodate narrowband UEs, allowing them to access appropriate resource segments within the overall BWP structure.
Solution Approach 2:
The patent changes key parameters including bandwidth, subcarrier spacing, and cyclic shift values to create narrowband-specific configurations. It introduces new parameter sets for narrowband CORESET0 and BWP that differ from standard configurations, enabling narrowband UEs to operate with modified parameters while maintaining compatibility with the overall system framework.
3Reliability
If standard Type0-PDCCH monitoring occasions are used, then control channel functionality is maintained, but narrowband UEs cannot determine appropriate monitoring occasions for receiving system information
Solution Approach 1:
The patent modifies Type0-PDCCH monitoring occasion parameters including periodicity, offset values, and duration to create narrowband-specific configurations. It introduces new parameter sets that adjust timing and frequency characteristics to match narrowband UE capabilities, allowing these UEs to determine appropriate monitoring occasions while maintaining control channel functionality.
Data Source
AI summary
An access resource determination method and device, a storage medium, and a terminal are provided. The determination method comprises: determining a frequency domain resource of a narrowband Control Resource SET0 (CORESET0), and/or determining a monitoring occasion of a narrowband Type0 Physical Downlink Control Channel (Type0-PDCCH).