TDD Uplink Resource Selection for Problematic Band Interference
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Solution Overview
Problem
Current wireless communication technologies fail to effectively mitigate intermodulation interference caused by concurrent uplink and downlink slots in problematic TDD band combinations, leading to unwanted reductions in data throughput.
Innovation Solution
The UE intelligently processes and generates TDD patterns, maps between uplink, downlink, and flexible slots, and configures flexible slots to prioritize downlink or uplink based on conflict resolution procedures to reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If concurrent uplink and downlink slots are used in TDD band combinations, then data throughput is improved, but intermodulation interference increases
Solution Approach 1:
The patent dynamically adjusts the TDD slot configuration based on detected interference conditions. The system monitors for intermodulation interference and adaptively reconfigures flexible slots between uplink and downlink directions, transforming a static TDD pattern into a dynamic one that responds to real-time interference conditions to maintain throughput while avoiding harmful interference.
Solution Approach 2:
The patent changes the configuration parameters of flexible slots by reassigning their direction (uplink or downlink) based on detected interference patterns. This parameter change allows the system to eliminate concurrent uplink-downlink slot configurations that cause intermodulation interference, thereby resolving the contradiction between maintaining throughput and avoiding interference.
2Object-generated harmful factors
If flexible slots are reconfigured to avoid interference, then intermodulation interference is reduced, but data throughput may decrease
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors for intermodulation interference and uses this information to make intelligent decisions about flexible slot configuration. The feedback loop ensures that reconfiguration only occurs when interference is detected, allowing the system to maintain high throughput during normal operation while selectively reducing interference when necessary, thus minimizing the impact on overall data throughput.
Data Source
AI summary
Techniques are provided for intelligently allocating uplink resources for TDD problematic bands. A UE may perform conflict avoidance procedures and/or prioritization of uplink resources associated with a problematic band combination. When the UE is scheduled to perform uplink and downlink corresponding to a slot associated with a combination of problematic bands, the UE may forgo transmitting of the uplink communication. The UE may configure flexible slots to avoid such conflicts and/or to prioritize critical downlink and/or uplink communication. resolving and/or mitigating interference associated with a problematic band combination. These and many other features and examples are described.