Base Station VoIP Service Scheduling in Mixed States
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Solution Overview
Problem
Existing LTE systems fail to meet the quality of service (QoS) requirements for VoIP services when multiple services are simultaneously performed by user equipment, leading to suboptimal resource allocation and throughput.
Innovation Solution
A service scheduling method that dynamically schedules VoIP services with high priority when user equipment is in a VoIP mixed service state, using buffer state reports to determine the mixed service state and allocate resources accordingly, distinguishing between VoIP and data services through QoS class identifiers and logical channel groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semi-persistent scheduling is used for VoIP service, then QoS requirement of VoIP service is ensured, but resource allocation efficiency deteriorates when UE performs multiple services simultaneously
Solution Approach 1:
The patent applies dynamic scheduling instead of fixed semi-persistent scheduling when UE performs multiple services simultaneously. The base station dynamically adjusts resource allocation based on real-time buffer state reports and service types, allowing flexible adaptation between VoIP and data services while maintaining QoS requirements.
Solution Approach 2:
The patent changes scheduling parameters based on service state detection. When mixed services are detected, the system switches from semi-persistent scheduling parameters to dynamic scheduling parameters, adjusting resource allocation strategies to optimize both QoS and efficiency for different service combinations.
2Reliability
If fixed time-frequency resource is allocated for VoIP service, then transmission reliability is improved, but system throughput deteriorates due to inability to provide resources for other services
Solution Approach 1:
The patent implements dynamic resource allocation where the base station adjusts time-frequency resource assignment based on real-time service requirements. When UE has both VoIP and data services, resources are dynamically reallocated to balance VoIP reliability requirements with data service throughput needs, rather than maintaining fixed allocations.
Solution Approach 2:
The patent applies different resource allocation strategies to different services based on their specific requirements. VoIP services receive resources optimized for reliability and periodic transmission, while data services receive resources optimized for throughput and flexibility, allowing each service to operate in its optimal performance regime.
3Loss of energy
If semi-persistent scheduling is used, then signaling overhead is reduced, but service scheduling flexibility deteriorates in mixed service states
Solution Approach 1:
The patent dynamically selects between semi-persistent and dynamic scheduling modes based on the service state. When only VoIP service is present, semi-persistent scheduling reduces signaling overhead. When mixed services are detected, the system switches to dynamic scheduling to provide the flexibility needed for multi-service coordination.
Solution Approach 2:
The patent changes scheduling mode parameters based on detected service types. The system monitors service states and adjusts scheduling parameters accordingly, transitioning between semi-persistent and dynamic scheduling approaches to optimize the balance between signaling overhead and scheduling flexibility for different service scenarios.
Data Source
Figure 1~3
AI summary
Embodiments of the present invention provide a service scheduling method and a base station. The method includes: determining whether a user equipment UE is in a voice over IP VoIP mixed service state; and preferentially scheduling a VoIP service in a dynamic scheduling manner when the UE is in the VoIP mixed service state. In another aspect, an embodiment of the present invention provides a base station. The base station includes: a detecting unit, configured to detect whether a user equipment UE is in a VoIP mixed service state; and a scheduling unit, configured to preferentially schedule a VoIP service in a dynamic scheduling manner when the UE is in the VoIP mixed service state. In the embodiments of the present invention, a technical means of preferentially scheduling a VoIP service in a dynamic scheduling manner when a UE is in a VoIP mixed service state is used, and therefore, a QoS requirement of service scheduling in the VoIP mixed service state is ensured.