Cross-Cell Resource Scheduling for Uplink-Downlink Interference
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Solution Overview
Problem
The challenge of meeting diverse service requirements in different wireless communication scenarios with limited wireless spectrum resources, particularly the high uplink capacity needs in business scenarios and high downlink capacity needs in consumer scenarios, is unresolved.
Innovation Solution
A communication resource scheduling method that utilizes flexible time-frequency domain resources and coordinated scheduling across neighboring cells, adjusting uplink and downlink resources based on load status and interference levels to meet specific service demands while minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless spectrum resources are allocated uniformly across all cells and users, then resource allocation simplicity is maintained, but service requirements of different users in different scenarios cannot be met
Solution Approach 1:
The patent applies local quality by configuring different uplink-downlink resource allocation patterns in different cells based on their specific service requirements. For example, cells serving business users with high uplink demands are configured with more uplink resources, while cells serving consumer users with high downlink demands are configured with more downlink resources. This localized customization allows each cell to meet its specific service requirements without requiring uniform complex allocation across the entire network.
Solution Approach 2:
The patent segments the wireless network into multiple cells, each with independently configurable uplink-downlink resource allocation patterns. By dividing the network into manageable cell units, each cell can be optimized for its specific service scenario (business or consumer) while the overall system maintains coordinated resource management. This segmentation enables flexible adaptation to different service requirements without overwhelming system-wide complexity.
2Productivity
If uplink and downlink transmissions use the same time-frequency resources in neighboring cells, then resource utilization efficiency is maximized, but uplink-downlink interference increases
Solution Approach 1:
The patent implements dynamic resource allocation where the network can adjust uplink-downlink resource distribution in real-time based on service requirements and interference conditions. The system dynamically configures different resource allocation patterns in different cells and can adapt the allocation dynamically within each cell based on traffic demands. This dynamic approach allows the system to balance resource utilization efficiency with interference mitigation by flexibly adjusting resource allocation rather than using static patterns.
Solution Approach 2:
The patent changes key parameters such as the number of uplink slots, downlink slots, and flexible slots in each cell's resource allocation pattern based on service requirements. By adjusting these parameters dynamically, the system can optimize resource utilization while controlling interference. For example, increasing uplink slot allocation in business-oriented cells while maintaining coordination with neighboring cells to avoid excessive uplink-downlink interference.
3Reliability
If more wireless spectrum resources are allocated to meet diverse service requirements, then service quality improves, but wireless spectrum resource shortage worsens
Solution Approach 1:
The patent applies local quality by allocating wireless spectrum resources according to the specific service requirements of each cell rather than uniformly across the network. Business-oriented cells receiving high uplink demands are allocated more uplink resources, while consumer-oriented cells with high downlink demands receive more downlink resources. This localized resource allocation ensures that spectrum resources are used efficiently where they are most needed, improving service quality without requiring excessive total spectrum resources.
Solution Approach 2:
The patent changes the allocation parameters of uplink and downlink resources in different cells to match service requirements. By adjusting the proportion of uplink slots, downlink slots, and flexible slots in each cell's resource pattern, the system optimizes service quality for different user scenarios while maintaining overall spectrum efficiency. This parameter adjustment allows the limited spectrum resources to be distributed in a way that maximizes their utility across diverse service scenarios.
Data Source
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. At least one of the time domain, frequency domain, space domain, code domain, or power domain of the second resource is different from at least one of the 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.