Network Node Uplink-Downlink Decoupling Timing Control
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Solution Overview
Problem
In heterogeneous wireless telecommunications networks, the uplink-downlink imbalance region causes radio link failures due to incorrect timing of uplink-downlink decoupling and recoupling procedures, leading to interference and network instability.
Innovation Solution
A method to determine the cause of radio link failures in uplink-downlink imbalance regions and optimize the control of user equipment uplink-downlink decoupling-recoupling by adjusting the timing of these procedures, either by delaying or advancing the decoupling or recoupling based on detected interference levels and threshold conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink-downlink decoupling is implemented to handle interference in uplink-downlink imbalance regions, then network capacity and coverage are improved, but radio link failures occur due to incorrect timing of decoupling and recoupling procedures
Solution Approach 1:
The patent implements feedback mechanisms where the network node monitors radio link status and interference levels, then adjusts decoupling/recoupling timing based on this feedback. The system detects when a user equipment is in an uplink-downlink imbalance region and dynamically controls the decoupling/recoupling procedures to prevent radio link failures while maintaining network capacity benefits.
Solution Approach 2:
The patent makes the decoupling and recoupling procedures dynamic by adjusting their timing based on real-time conditions. Instead of fixed timing, the system dynamically determines when to perform decoupling and recoupling based on the user equipment's location, interference levels, and radio link status, thereby adapting to changing network conditions.
2Area of stationary object
If small cells are deployed in heterogeneous networks to improve coverage and capacity, then network coverage and traffic handling are improved, but uplink-downlink imbalance regions cause interference and radio link failures
Solution Approach 1:
The patent applies local quality by treating different regions of the network differently. Specifically, it identifies uplink-downlink imbalance regions as special zones where the small cell's uplink and downlink boundaries do not align, and applies specialized decoupling/recoupling control only in these local regions, while maintaining normal operation in other areas.
Solution Approach 2:
The patent segments the network into different operational modes for uplink and downlink communications. By separating uplink and downlink handling into different cells (decoupling), the system manages interference more effectively in heterogeneous networks with small cells, allowing independent optimization of uplink and downlink paths.
3Object-affected harmful factors
If decoupling and recoupling procedures are implemented to manage uplink-downlink imbalance, then interference is reduced, but network complexity increases due to additional control mechanisms
Solution Approach 1:
The patent implements self-service by enabling the network node to automatically detect uplink-downlink imbalance regions and autonomously control decoupling/recoupling procedures without requiring manual intervention. The system self-adjusts based on monitored parameters such as interference levels and radio link status, reducing the need for complex external control.
Data Source
AI summary
Wireless telecommunications network nodes, methods and computer program products are disclosed. A wireless telecommunications network node method, comprises determining a cause of a radio link failure which occurred when a user equipment is in proximity to an uplink-downlink imbalance region; and in response to the cause of the radio link failure, initiating action to optimize control of user equipment uplink-downlink decoupling-recoupling when in proximity to the uplink-downlink imbalance region. In this way, by establishing the cause of the radio link failure, it is possible to take action to alter the user equipment uplink-downlink decoupling-recoupling procedure in order to help prevent such radio link failures occurring in the future.