Coordinated Cell Resource Scheduling for UL-DL Interference Avoidance
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Solution Overview
Problem
Existing wireless communication networks face challenges in meeting the diverse service requirements of different users in various scenarios due to limited wireless spectrum resources, with 2B scenarios requiring high uplink capacity and 2C scenarios needing high downlink capacity.
Innovation Solution
A communication resource scheduling method that utilizes a flexible slot format (F slot) to dynamically allocate resources for uplink or downlink transmissions based on user requirements, employing coordinated scheduling to avoid interference between neighboring cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless spectrum resources are limited, then resource scarcity occurs, but diverse service requirements of different users in various scenarios cannot be met
Solution Approach 1:
The patent implements dynamic resource allocation by allowing flexible switching between uplink and downlink transmissions on the same time-frequency resources. The network device determines transmission direction based on real-time service requirements, enabling the system to adapt to varying traffic demands without requiring additional spectrum resources
Solution Approach 2:
The same time-frequency resources are designed to serve multiple purposes by supporting both uplink and downlink transmissions. Through coordinated scheduling between neighboring cells, the system makes resources universal, allowing a single resource pool to satisfy diverse service requirements of different users in different scenarios
2Productivity
If flexible slot format is used to dynamically allocate resources, then resource utilization improves, but interference coordination between neighboring cells becomes more complex
Solution Approach 1:
The patent merges the scheduling decisions of neighboring cells by establishing coordination mechanisms where network devices exchange scheduling information and jointly determine transmission directions. This combining approach allows flexible resource allocation while managing interference through coordinated control
Solution Approach 2:
The system implements feedback mechanisms where network devices monitor interference conditions and service requirements, then adjust scheduling decisions accordingly. This feedback loop enables dynamic adaptation to changing conditions while maintaining resource efficiency
Data Source
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Figure 3
Figure 4A~4B
AI summary
This application provides a communication resource scheduling method and an apparatus. The communication resource scheduling method in this application may include: indicating that a first resource of a first cell is used for first transmission, and indicating that a second resource of a neighboring cell of the first cell is used for second transmission, where at least one of time domain, frequency domain, space domain, code domain, or power domain of the second resource is different from at least one of time domain, frequency domain, space domain, code domain, or power domain of the first resource. In embodiments of this application, different scheduling manners may be used for the first cell and the neighboring cell of the first cell, to meet different service requirements of terminal devices in different cells, and avoid uplink and downlink interference while meeting the different service requirements.