Uplink Gap Configuration for IDC Interference Avoidance
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Solution Overview
Problem
In wireless communication systems, the coexistence of multiple wireless devices leads to interference issues, particularly In Device Coexistence (IDC) interference, which affects the uplink transmission of New Radio (NR) and causes communication failures or inefficiencies.
Innovation Solution
A method and device for configuring an uplink gap (ULgap) are introduced, where a user device receives ULgap configuration information from a network device indicating a gap during which it is prohibited from scheduling uplink information to avoid interference from IDC signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless devices coexist without unified frequency band management, then device functionality and wireless service coverage are improved, but interference between uplink and downlink of different wireless systems occurs
Solution Approach 1:
The network device proactively configures ULgap parameters to the user device before interference occurs, enabling the user device to preemptively avoid scheduling uplink information during periods when IDC interference is expected, thus preventing rather than reacting to interference
Solution Approach 2:
The network device acts as an intermediary that manages and coordinates the operation of multiple wireless systems within the user device, allocating specific time gaps where certain systems should remain inactive to prevent interference while allowing others to operate
2Productivity
If uplink information is scheduled during IDC interference periods, then uplink transmission continuity is maintained, but transmission effectiveness deteriorates due to interference
Solution Approach 1:
The network device configures ULgap parameters in advance, allowing the user device to proactively identify and avoid scheduling uplink information during interference-prone periods, thereby preventing wasted transmissions while maintaining overall uplink continuity through alternative scheduling
3Reliability
If ULgap configuration is implemented to avoid IDC interference, then uplink transmission reliability is improved, but scheduling flexibility is reduced
Solution Approach 1:
The ULgap configuration parameters (such as gap duration, periodicity, and offset) are made dynamically adjustable by the network device based on actual interference conditions and traffic requirements, allowing the system to adapt the restriction pattern rather than applying fixed rigid constraints
Solution Approach 2:
The network device can modify ULgap configuration parameters to balance reliability and flexibility, adjusting gap timing and duration based on observed interference patterns and uplink traffic demands, thereby optimizing the trade-off between avoiding interference and maintaining scheduling efficiency
Data Source
AI summary
Provided in the present disclosure are a method and device for configuring an uplink gap, and a readable storage medium, which are applied to the technical field of wireless communications. The method is performed by a user device and includes: receiving uplink gap (ULgap) configuration information from a network device, where the ULgap configuration information indicates a gap in which the user device is prohibited from scheduling uplink information when an uplink signal is interfered with by an In Device Coexistence (IDC) signal.