Pattern-Based Guard Band Configuration for Wireless Networks
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Solution Overview
Problem
Existing guard band configurations in wireless communication systems are inefficient as they often maintain continuous protection, leading to resource wastage and high signaling overhead, and do not adapt to varying interference patterns, which can result in performance degradation due to out-of-band emissions and spurious interference.
Innovation Solution
A pattern-based guard band configuration that dynamically adjusts based on time and frequency resources, allowing for varying levels of guard band usage depending on interference patterns, reducing unnecessary resource allocation and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous guard band configuration is used to protect against interference, then reliability is improved, but resource utilization deteriorates and signaling overhead increases
Solution Approach 1:
The guard band configuration is made dynamic by introducing a pattern parameter that allows the guard band to be applied selectively in certain time resources rather than continuously. This enables the system to adapt the protection level according to actual interference conditions, improving resource utilization while maintaining necessary reliability.
Solution Approach 2:
The invention changes the configuration parameter of the guard band by introducing a pattern parameter that controls its application. By modifying this parameter, the system can switch between continuous guard band mode and pattern-based selective application, thereby balancing interference protection with resource efficiency.
2Reliability
If continuous guard band configuration is used to protect against interference, then reliability is improved, but signaling overhead worsens
Solution Approach 1:
The dynamic pattern-based configuration allows the system to signal guard band application only when needed, rather than continuously. This reduces the signaling overhead by transmitting configuration information selectively based on the pattern parameter, while maintaining reliable interference protection during vulnerable periods.
3Device complexity
If static guard band configuration is used, then device complexity is reduced, but adaptability to varying interference patterns deteriorates
Solution Approach 1:
The invention introduces a pattern parameter that enables dynamic adaptation to varying interference patterns while maintaining relatively simple device complexity. The pattern can be configured to match different interference scenarios (e.g., periodic interference, burst interference), allowing the system to adapt without requiring complex real-time analysis or reconfiguration.
Data Source
Figure 1~3
Figure 2
Figure 4a~4c
AI summary
Methods in a first, a second and a third node in a wireless communications network for handling a pattern-based guard band. The first node configures the pattern-based guard band. The pattern-based guard band comprises a pattern, which comprises at least a first set and a second set of time resources. The first set of time resources is associated with a first guard band configuration. The second set of time resources is associated with no guard band configuration or with a second guard band configuration which is different from the first guard band configuration. The method in the second node comprises obtaining the configured pattern-based guard band and adaptively configuring one more actions in response to the obtained pattern-based guard band. The method in the third node comprises sending a request to a first node to configure the pattern-based guard band. The first, second and third nodes are also described.