Resource Scheduling for Dual-Carrier Base Stations
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Solution Overview
Problem
The challenge in mobile communications is that high-frequency carriers have limited coverage, leading to frequent handovers or base station reselections, and insufficient transmission resources, making it difficult for user equipment to fully utilize both high-frequency and low-frequency carriers for data transmission.
Innovation Solution
A resource scheduling method that involves sending data offloading proportions from one base station to another, generating buffer status reports, and determining uplink resource scheduling information to optimize data transmission between different base stations, ensuring efficient use of both high-frequency and low-frequency carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high-frequency carrier is used for data transmission, then transmission resources and bandwidth are increased, but coverage area is reduced and handover frequency increases
Solution Approach 1:
The patent segments the data transmission function across multiple base stations. The user equipment is served by a first base station for control plane communication and a second base station for data plane communication. This segmentation allows the system to utilize high-frequency carriers with limited coverage for data transmission while maintaining coverage through low-frequency carriers for control signaling, thereby resolving the contradiction between transmission resources and coverage area.
2Productivity
If all data is transmitted on high-frequency carrier, then transmission capacity is maximized, but transmission resources become insufficient when user moves out of coverage
Solution Approach 1:
The patent introduces a second base station as an intermediary for data transmission. When the user equipment moves out of the high-frequency carrier coverage of the first base station, the second base station (which has low-frequency carrier coverage) acts as an intermediary to continue providing data transmission services. This intermediary approach ensures both high transmission capacity when available and reliable resource availability through fallback mechanisms.
3Stability of the object's composition
If control plane and data plane are separated onto different carriers, then coverage stability is improved, but transmission resource utilization becomes unbalanced
Solution Approach 1:
The patent implements dynamic resource allocation where the data offloading proportion is adjusted based on channel conditions, buffer status, and coverage availability. The system dynamically determines what proportion of data should be transmitted through the high-frequency carrier (first base station) versus the low-frequency carrier (second base station). This dynamic approach maintains coverage stability through control plane separation while adapting resource utilization to current system conditions, resolving the contradiction between stability and versatility.
Data Source
AI summary
Embodiments of the present invention disclose a resource scheduling method, device, and communications system. The method includes: sending, by a first base station, a first data offloading proportion to a user equipment; receiving, by the first base station, a first buffer status report that is generated based on the first data offloading proportion and sent by the user equipment, where a buffered data volume included in the first buffer status report needs to be transmitted by the first base station; sending, by the first base station, uplink resource scheduling information to the user equipment based on the first buffer status report, where an uplink transmission resource indicated by the uplink resource scheduling information is used to transmit uplink data of the user equipment that should be borne by the first base station. The embodiments of the present invention are applied to resource scheduling.