IDC Indication Message With Frequency List For Wireless Interference
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Solution Overview
Problem
In wireless communication systems, In-Device Coexistence (IDC) interference occurs due to simultaneous operation of multiple network systems within a single user equipment (UE), leading to resource wastage and reduced quality of service, as existing solutions do not effectively address the interference between different frequency bands.
Innovation Solution
A method and apparatus for transmitting control information that includes an IDC indication message with an affected carrier frequency list and an interference direction indicator, allowing the UE to notify the eNB of IDC interference, enabling the eNB to determine and implement solutions such as FDM or TDM to alleviate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple network systems operate simultaneously in a single UE, then user convenience and communication capability are improved, but IDC interference occurs between different frequency bands
Solution Approach 1:
The patent introduces an intermediary mechanism (IDC indication message and affected carrier frequency list) that enables the UE to inform the eNB about IDC interference conditions. This intermediary communication allows the network to identify interference issues and apply appropriate solutions (FDM or TDM) without requiring direct modification of the multiple network systems operating in the UE.
2Reliability
If IDC assistance information is transmitted frequently to address interference, then interference management is improved, but network resources are wasted
Solution Approach 1:
The patent implements a dynamic triggering mechanism where IDC assistance information is transmitted only when specific interference conditions are detected. The UE monitors IDC interference status and triggers information transmission selectively based on whether interference exceeds thresholds or changes state, rather than transmitting continuously or at fixed intervals. This dynamic approach balances reliable interference management with efficient resource utilization.
3Productivity
If broad bandwidth is allocated to increase transmission capacity, then data transmission capability is improved, but power consumption increases when quality of service is low
Solution Approach 1:
The patent enables partial bandwidth utilization by allowing the eNB to identify specific affected carrier frequencies through the IDC indication message. When IDC interference is detected, the network can selectively reduce or adjust transmission on only the affected frequency bands rather than reducing transmission across the entire broad bandwidth. This partial action approach maintains transmission capacity on non-affected frequencies while reducing power consumption on interfered frequencies.
Data Source
AI summary
Disclosed is a method and a apparatus for transmitting control information in a wireless communication system. The present invention includes detecting In Device Coexistence (IDC) interference, and transmitting an IDC indication message to an eNB if there is at least one frequency influenced by the IDC interference, wherein the IDC indication message is configured to include a frequency list containing frequencies influenced by the IDC interference, and the frequency list is configured to include an IDC interference direction indicating a direction of an influence of the detected IDC interference.