Semi-Persistent Service Transmission with Flexible Resource Sets
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Solution Overview
Problem
Existing communication systems struggle to flexibly and rapidly accommodate the diverse SPS requirements of different services, particularly in scenarios with varying reliability and delay sensitivity, such as VoIP and M2M communications.
Innovation Solution
A method where a first MS negotiates with a network device to determine multiple resource allocation parameter sets, allowing the MS to select the appropriate set based on the service type, ensuring flexible and rapid adaptation to different service needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic scheduling is used, then flexibility is improved, but control signaling overhead increases
Solution Approach 1:
The patent segments resource allocation into two parts: semi-persistent allocation for regular traffic patterns and dynamic allocation for bursty traffic. This allows the system to use lightweight SPS configurations for predictable services while reserving dynamic scheduling only for services requiring flexibility, thereby reducing overall signaling overhead while maintaining necessary adaptability.
Solution Approach 2:
The patent introduces a mechanism to dynamically switch between SPS and dynamic scheduling modes based on service characteristics. The network can activate or deactivate SPS configurations dynamically, allowing the system to adapt to changing traffic patterns without requiring full dynamic scheduling reconfiguration, thus balancing flexibility and signaling efficiency.
2Quantity of substance
If SPS is used, then control signaling overhead is reduced, but flexibility deteriorates
Solution Approach 1:
The patent creates a universal resource allocation framework where a single SPS configuration can serve multiple service types with different requirements. By defining configurable parameters that can be adjusted based on service characteristics, the same SPS mechanism can accommodate both low-latency services and best-effort services, reducing the need for service-specific scheduling mechanisms.
Solution Approach 2:
The patent enables flexible adjustment of SPS parameters (such as periodicity, resource blocks, and modulation schemes) based on service requirements. This allows the system to maintain the low overhead benefits of SPS while adapting resource allocation characteristics to match different service types, effectively decoupling the overhead reduction benefit from the flexibility limitation.
3Adaptability or versatility
If multiple service types with different SPS requirements are supported, then service diversity is improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies different resource allocation strategies to different service types based on their specific requirements. Instead of using a single complex allocation mechanism for all services, the system tailors the allocation approach locally to each service type's characteristics, simplifying the overall management by allowing independent optimization for each service category.
Solution Approach 2:
The patent performs preliminary configuration of resource allocation parameters based on service type classification before actual data transmission. By pre-defining appropriate SPS configurations for different service categories and selecting the appropriate configuration based on service type indication, the system avoids complex real-time decision-making during transmission, thereby reducing allocation complexity while supporting diverse services.
Data Source
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AI summary
Provided are a service transmission method and apparatus. The method comprises: a first mobile station acquiring N resource allocation parameter sets, wherein each of the resource allocation parameter sets comprises at least one resource allocation parameter, and N is greater than or equal to 2; the first mobile station determining a second resource allocation parameter set from the N resource allocation parameter sets, and the first mobile station determining a second target resource; the first mobile station sending to a second mobile station indication information about the second resource allocation parameter set and indication information about the second target resource; and the first mobile station transmitting, according to the second resource allocation parameter set, a second service with the second mobile station using the second target resource. The method can flexibly and rapidly cope with different requirements of different services on semi-persistent scheduling.