Beam Coverage Handover Scheduling in 5G Terminal Communication
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Solution Overview
Problem
In 5G mobile communication systems, efficiently scheduling terminal devices for handover to neighboring cells based on beam coverage area is a challenge.
Innovation Solution
A communication method and apparatus that utilizes beam gain, width, direction, and location information to determine optimal handover targets, allowing network devices to schedule terminal devices more efficiently by indicating handover to network devices within the beam's coverage area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device reports beam gain and width information to the network device, then the scheduling efficiency is improved, but the communication overhead increases
Solution Approach 1:
The terminal device reports beam gain and width information in advance before handover occurs. This preliminary reporting enables the network device to pre-calculate beam coverage areas and prepare handover decisions, improving scheduling efficiency without requiring continuous communication during the handover process itself.
Solution Approach 2:
The patent extracts only the essential beam parameters (gain and width) needed for coverage calculation, rather than transmitting complete terminal device information. This selective information extraction reduces communication overhead while maintaining the necessary data for efficient handover scheduling.
2Reliability
If the network device performs comprehensive measurement and calculation for handover scheduling, then the handover reliability is improved, but the time consumption increases
Solution Approach 1:
The patent replaces complex real-time measurement and calculation processes with a simplified model that uses pre-reported beam parameters. Instead of performing comprehensive measurements during handover decision-making, the network device uses the terminal's beam gain and width information to directly calculate coverage areas, reducing computation time while maintaining reliability.
Solution Approach 2:
Beam parameter reporting is performed in advance, allowing the network device to pre-compute coverage areas and prepare handover targets before actual handover is needed. This eliminates time-consuming real-time calculations during the critical handover moment.
3Reliability
If the terminal device uses beamforming with directional transmission, then the signal quality is improved, but the coverage area is reduced
Solution Approach 1:
The patent dynamically calculates the beam coverage area based on the terminal's reported beam gain and width parameters. Instead of using a fixed coverage assumption, the system adapts the coverage area calculation to match the actual beam characteristics, allowing optimal handover decisions that respect the trade-off between signal quality and coverage.
Solution Approach 2:
The terminal device provides feedback information about its beam parameters (gain and width) to the network device. This feedback enables the network to accurately determine the actual coverage area and make informed handover decisions, resolving the contradiction between directional signal quality and coverage area.
Data Source
AI summary
Embodiments of this application provide a communication method and apparatus, and pertain to the field of communication technologies, to schedule a terminal device more efficiently. In this method, because a gain and/or a width of a beam of the terminal device may indicate a beam coverage area of the terminal device, a first network device may determine the beam coverage area of the terminal device based on first indication information reported by the terminal device. In this way, the first network device can directly indicate the terminal device to perform handover to a network device that can be covered by the beam of the terminal device, for example, a second network device, to schedule the terminal device more efficiently.