High-Frequency Beam Interference Coordination via Terminal Reporting
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Solution Overview
Problem
High-frequency cells using high-band spectrums face interference issues due to overlapping coverage areas and varying signal quality, which existing technologies have not effectively addressed.
Innovation Solution
A communication method where a network device sends quality threshold information to a terminal, which measures and reports signal quality of neighboring and serving cell beams, allowing for interference coordination management by adjusting signal transmit parameters or interacting with other network devices to reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If beamforming technology is used to increase coverage in high-frequency cells, then coverage area is improved, but interference between neighboring beams increases
Solution Approach 1:
The patent applies preliminary action by having the terminal measure and report signal quality of neighboring cell beams before handover occurs. The network device uses this advance information to proactively adjust beam parameters or switch beams to avoid interference, rather than reacting after interference has occurred. This is implemented through the measurement report mechanism that provides advance knowledge of potential interference conditions.
Solution Approach 2:
The patent implements feedback through the measurement report mechanism where the terminal reports signal quality information back to the network device. This feedback loop enables the network to adjust beamforming parameters based on actual signal conditions, allowing dynamic optimization of beam selection and adjustment to minimize interference while maintaining coverage.
2Measurement precision
If transmit beam dynamically tracks target terminal from center to edge location, then terminal tracking accuracy is improved, but interference coordination becomes more difficult
Solution Approach 1:
The patent introduces the terminal as an intermediary that performs beam measurement and reporting functions. Instead of requiring complex direct coordination between all network devices, the terminal acts as a mediator that collects signal quality information from both serving and neighboring cells and reports it to the network device, simplifying the interference coordination process while maintaining accurate tracking.
Solution Approach 2:
The patent segments the interference coordination task into separate functional components: the terminal handles measurement and reporting, while the network device handles beam selection and adjustment. This segmentation divides the complex coordination problem into manageable parts, reducing the overall system complexity while maintaining tracking accuracy.
3Productivity
If high-band spectrum is used to meet large capacity requirements, then data transmission capacity is improved, but spectrum resource congestion in low-band increases
Solution Approach 1:
The patent transitions from low-band spectrum to high-band spectrum, moving to another dimensional frequency range. This dimensional change allows the system to achieve higher data transmission capacity by utilizing the previously underutilized high-frequency spectrum resources, effectively expanding the available capacity without further congesting the low-band resources.
Data Source
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Figure 2b~2c
Figure 2d~2e
AI summary
Embodiments of this application disclose a communication method and a communications apparatus. The method includes: sending, by a first network device, first information to a terminal, where the first information includes a signal quality threshold of a serving cell of the terminal and a signal quality threshold of a neighboring cell of the serving cell, or includes a threshold of a difference between signal quality of a beam of the serving cell and signal quality of a beam of the neighboring cell; and receiving, by the first network device, a first report sent by the terminal, where the first report includes identifier information of a first cell and identifier information of a first beam of the first cell, and/or the first report includes identifier information of a second cell and identifier information of a second beam of the second cell, where signal quality of the first beam reaches the signal quality threshold of the serving cell, and signal quality of the second beam reaches the signal quality threshold of the neighboring cell; or an absolute value of a difference between signal quality of the first beam and signal quality of the second beam is not greater than the difference threshold, to facilitate interference coordination between high-frequency cells.