Network Slice SPS Allocation via DCI Segmentation
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Solution Overview
Problem
Coordinating semi-persistent scheduling (SPS) and dynamic resource allocation across multiple network slices in communication systems is challenging, particularly for user equipment (UE) accessing multiple slices simultaneously, as existing methods do not efficiently manage resource separation and flexibility.
Innovation Solution
Implementing UE-specific and network slice-specific SPS configurations, using dedicated and common control signaling, to allocate and prioritize resources, with override indicators in dynamic scheduling to coordinate SPS and dynamic resource allocations, ensuring guaranteed and flexible resource usage across network slices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semi-persistent scheduling (SPS) is used for resource allocation in network slices, then resource reservation and separation are improved, but device complexity and difficulty of coordination increase
Solution Approach 1:
The patent segments the network slice identification into a priority field and a network slice identifier field within the DCI format. This segmentation allows the system to separately handle resource allocation priorities and specific slice identification, simplifying the coordination mechanism while maintaining reliable resource separation across multiple network slices.
Solution Approach 2:
The patent implements preliminary configuration of SPS resources with associated network slice identifiers before dynamic scheduling occurs. This preliminary action allows the UE to pre-establish the mapping between SPS resources and network slices, reducing the complexity of real-time coordination while ensuring reliable resource separation.
2Adaptability or versatility
If dynamic scheduling is used for resource allocation, then flexibility and adaptability are improved, but resource reservation and separation among network slices deteriorate
Solution Approach 1:
The patent merges dynamic scheduling with network slice identification by incorporating the network slice identifier field into the DCI format. This merging allows dynamic scheduling to maintain its flexibility while simultaneously ensuring proper resource separation among network slices through the integrated slice identification mechanism.
3Device complexity
If multiple network slices share common control network functions, then device complexity is reduced, but resource separation and quality of service guarantee become more difficult
Solution Approach 1:
The patent applies local quality by assigning specific network slice identifiers to different SPS configurations and resource allocations. This allows the common control network functions to serve multiple network slices while maintaining distinct resource separation and service quality guarantees for each slice through localized identification and prioritization mechanisms.
4Reliability
If SPS configuration includes network slice identifier, then resource separation is improved, but signaling overhead increases
Solution Approach 1:
The patent makes the DCI format universal by designing it to carry both scheduling information and network slice identification in a single message. This multi-functionality allows the system to achieve reliable resource separation without increasing signaling overhead, as the same DCI structure serves dual purposes of resource allocation and slice identification.
Data Source
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AI summary
Certain embodiments may relate to communication systems, and, for example, some embodiments may relate to allocating resources of one or more network slices in a communication system.