Wireless LBT Reporting for Unlicensed Network Optimization
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing network performance, particularly in unlicensed bands, due to inefficiencies in Listen Before Talk (LBT) mechanisms, leading to suboptimal energy detection thresholds, signal quality, resource utilization, and LBT failure detection, which affect network efficiency and coverage.
Innovation Solution
A method involving entities in a wireless communication system that exchange information related to LBT energy detection thresholds, signal strength, resource status, and LBT failure detection, enabling network self-optimization through load balancing, coverage optimization, and mobility management by sharing and configuring data related to these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LBT mechanisms are used in unlicensed bands, then network coverage and signal quality are improved, but energy detection thresholds and resource utilization become suboptimal
Solution Approach 1:
The patent implements a feedback mechanism where the second entity reports LBT-related information (energy detection threshold, signal strength, resource status, LBT failure detection) back to the first entity. This feedback loop enables the first entity to optimize LBT configuration parameters dynamically, resolving the contradiction between maintaining reliable signal quality and improving resource utilization efficiency in unlicensed bands.
Solution Approach 2:
The patent makes the LBT configuration dynamic by allowing the first entity to configure and update LBT parameters (energy detection thresholds, resource allocation) based on real-time conditions reported by the second entity. This dynamic adaptation enables the system to simultaneously maintain signal quality reliability and optimize resource utilization according to changing network conditions.
2Use of energy by moving object
If LBT configuration is optimized for energy efficiency, then network performance improves, but system complexity increases
Solution Approach 1:
The patent implements self-service by enabling the second entity to autonomously measure and report its own LBT-related parameters (energy detection threshold, signal strength, resource status, LBT failure detection). This self-measurement and self-reporting mechanism reduces the need for complex centralized control, allowing energy efficiency optimization while minimizing the increase in system complexity.
3Area of stationary object
If LBT parameters are configured for coverage optimization, then network coverage improves, but LBT failure detection accuracy decreases
Solution Approach 1:
The patent uses feedback from the second entity's LBT failure detection reports to help the first entity adjust LBT configuration parameters. The second entity provides accurate measurements of LBT failures along with coverage-related metrics, enabling the first entity to optimize the balance between coverage area and LBT failure detection accuracy through iterative configuration adjustments.
Data Source
AI summary
The present disclosure is related to a 5G or 6G communication system, which is after 4G communication system such as an LTE, for supporting higher data transmission ratio, provides an entity in a wireless communication system and a method performed by the same. A method performed by a first entity in a wireless communication system according to an embodiment of the present disclosure may comprise: transmitting, to a second entity. a request of reporting at least one information, wherein the request includes time information indicating a time point to which prediction of the at least one information is applied; and receiving, from the second entity. a response including information regarding the reporting of the at least one information, based on the request.