Downlink Control Channel Beam Pairing for 5G Blockage Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in 5G communication systems is to efficiently share resources between downlink control and data channels, particularly in high-frequency bands, while accommodating diverse services with varying requirements such as eMBB, mMTC, and URLLC, and addressing beam blocking issues due to narrow beam widths.
Innovation Solution
The method involves configuring independent control regions for downlink control channels using multiple beams, allowing flexible resource allocation and robust beam recovery through beam pair links, with configurations varying based on transmission purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If narrow beam widths are used in 5G high-frequency bands, then data transmission capacity and spectral efficiency are improved, but beam blocking issues occur more frequently
Solution Approach 1:
The patent implements dynamic beam management where the base station continuously monitors beam blockage conditions and adapts beam directions in real-time. When blockage is detected, the system dynamically switches to alternative beams or adjusts beamforming weights, transforming the static narrow beam into a dynamic system that can respond to changing channel conditions, thus maintaining both high capacity and reliability
Solution Approach 2:
The system performs preliminary beam training and establishes multiple candidate beam pairs before actual data transmission. By pre-configuring alternative beam paths and maintaining beam pair link information, the system prepares backup transmission paths in advance, enabling rapid recovery when blockage occurs without sacrificing the benefits of narrow beam focusing
2Adaptability or versatility
If independent control regions are configured for multiple beams, then resource flexibility and beam recovery reliability are improved, but system complexity increases
Solution Approach 1:
The patent divides the control channel resources into separate control regions, each associated with specific beam pairs. This segmentation allows independent configuration and management of control resources for different beams, enabling flexible resource allocation and simplified beam-specific optimization without requiring complex global reconfiguration
Solution Approach 2:
The control region configuration is designed to serve multiple purposes: it provides control channels for initial access, beam management, and data transmission scheduling simultaneously. By making the control region structure multi-functional and reusable across different beam pairs and service types, the system achieves high adaptability without proportional increases in complexity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a communication scheme for convergence of an IoT technology and a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, a security and security related service, or the like) on the basis of a 5G communication technology and an IoT related technology. The present invention provides a method for more efficiently transmitting uplink control information and data in a mobile communication system which operates in an unlicensed band or a mobile communication system which requires a channel detection operation.