Ultra-Protected Scheduling for 5G URC Interference
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Solution Overview
Problem
Current 5G systems face challenges in ensuring ultra-reliable communication (URC) due to potential interference from less reliable transmission types, such as eMBB, which can lead to incorrect transmissions and interference with URC signals, especially when using shared frequency bands and lacking robust control signaling.
Innovation Solution
Implementing ultra-protected scheduling messages with a larger CRC and requiring multiple scheduling messages to ensure accurate transmission in designated URC regions, separating radio resources into distinct regions for URC and non-URC traffic to prevent interference, and using robust modulation and coding schemes to guarantee high reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared frequency bands are used for both URC and non-URC traffic, then resource utilization is improved, but transmission reliability deteriorates due to potential interference and incorrect transmissions
Solution Approach 1:
The frequency band is segmented into a first set of frequency resources for URC and a second set for non-URC traffic. This segmentation allows both traffic types to coexist in the same frequency band while maintaining their respective reliability requirements, resolving the contradiction between resource utilization and transmission reliability.
Solution Approach 2:
A control signaling mechanism acts as an intermediary to manage resource allocation. The control signaling includes indicators that specify which frequency resources are allocated to URC and which to non-URC traffic, preventing incorrect transmissions and interference while enabling efficient resource utilization.
2Reliability
If robust control signaling is implemented to prevent incorrect transmissions, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
Different levels of control signaling robustness are applied locally to different traffic types. URC traffic receives robust control signaling with indicators protecting against incorrect transmissions, while non-URC traffic uses standard signaling. This localized approach ensures high reliability for URC without unnecessarily increasing system complexity overall.
3Reliability
If separate frequency bands are used for URC and non-URC traffic, then transmission reliability is improved, but resource utilization deteriorates
Solution Approach 1:
The patent merges URC and non-URC traffic into a single frequency band by allocating different frequency resources within the same band to different traffic types. This combining approach maintains the reliability benefits of separation while achieving the resource utilization benefits of sharing, resolving the contradiction between reliability and productivity.
Data Source
AI summary
Systems and methods for ultra-protected scheduling are disclosed. In some embodiments, a method of operation of a first node includes determining a part of radio resources on which some traffic types can only be scheduled using ultra-protected scheduling messages. The method also includes scheduling a second node to use the part of the radio resources using an ultra-protected scheduling message. In some embodiments, the part of the radio resources is used for Ultra Reliable Communication (URC) and scheduling the second node to use the part of the radio resources for non-URC transmissions. In this way, there may be reduced risk that any node incorrectly transmits in the part of the radio resources and interferes with traffic on the part.