UE IDC Frequency Reporting for Multi-Module Interference
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Solution Overview
Problem
There is a demand for an efficient method to report frequency information affected by interference between communication modules in a device, particularly in 5G communication systems used in IoT networks.
Innovation Solution
A method and apparatus for In-Device Coexistence (IDC) information reporting, where user equipment (UE) transmits IDC information to a base station (BS) using specific fields like affectedCarrierFreqList and affectedCarrierFreqCombList, indicating frequencies affected by IDC problems, and the BS configures and receives this information to manage IDC issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication modules are integrated in a device to support various services (5G, WLAN, Bluetooth, GPS, etc.), then service capability and functionality are improved, but interference between modules occurs causing degradation of communication performance
Solution Approach 1:
The patent introduces an intermediary mechanism (IDC indication and reporting system) that mediates between interfering communication modules. The UE detects interference between modules (e.g., 5G NR and WLAN) and reports affected frequency information to the gNB, which then coordinates resource allocation to resolve the interference while maintaining multi-service capability
Solution Approach 2:
The patent changes operational parameters (frequency allocation, time resources) dynamically based on detected interference conditions. The gNB modifies resource allocation parameters for affected carriers based on IDC reports, adjusting communication parameters to avoid interference periods or frequencies
2Reliability
If detailed frequency information about IDC-affected carriers is reported to the base station, then the base station can accurately manage interference, but signaling overhead and reporting complexity increase
Solution Approach 1:
The patent segments the frequency information reporting into structured fields: affectedCarrierFreqList for individual carrier frequencies and affectedCarrierFreqCombList for carrier combinations. This segmentation allows precise reporting of IDC-affected frequencies while organizing information in a manageable, standardized format that reduces reporting complexity
Solution Approach 2:
The patent creates a universal reporting mechanism (UEAssistanceInformation message with standardized IDC fields) that can report various types of frequency information (single carriers, carrier combinations, different interference scenarios) through a single unified structure, reducing overall reporting complexity while maintaining comprehensive interference management capability
Data Source
AI summary
A method, performed by a user equipment (UE), of providing In-Device Coexistence (IDC) information is provided. The method includes transmitting, to a base station (BS), UE capability information including IDC information reporting capability information; receiving, from the BS, configuration information about IDC information reporting; detecting an occurrence of an IDC problem; and transmitting, to the BS, UE Assistance information including information of a frequency affected by the IDC problem, based on the configuration information, wherein the information of the frequency affected by the IDC problem is indicated in an IDC Assistance field.