Scheduling Configuration for TSN Traffic in NR IIoT

The patent divides a single SPS configuration into multiple SPS configurations, each with different periodicities. This segmentation allows each configuration to handle specific TSN traffic flows with different periodicity requirements, thereby supporting non-integer multiple periodicities and improving resource utilization efficiency while managing complexity through structured organization.

The patent introduces dynamic parameters including an indicator value that specifies the number of SPS configurations, a factor for each configuration indicating the number of configured grants within a periodicity, and offsets for HARQ process identities. These dynamic parameters enable flexible adaptation to different TSN traffic patterns and periodicity requirements, resolving the contradiction between configuration simplicity and resource utilization efficiency.

The patent creates a universal SPS configuration framework that can handle both integer and non-integer multiple periodicities through a standardized set of parameters. The indicator value, factor, and HARQ offset parameters provide a multi-functional mechanism that works across different periodicity scenarios, allowing the system to support diverse TSN traffic flows without requiring entirely separate configuration mechanisms for each case.

The patent utilizes parameter changes to manage complexity, specifically through the indicator value that determines the number of SPS configurations, the factor that controls the number of configured grants within each periodicity, and the HARQ process identity offsets. By systematically varying these parameters, the patent enables flexible support for non-integer multiple periodicities while maintaining a consistent configuration structure that prevents exponential complexity growth.

The patent employs periodic action through configured grants that are periodically transmitted according to the TSN traffic periodicity. By aligning the periodicity of configured grants with TSN traffic patterns and using the factor parameter to specify the number of grants within each periodicity, the system achieves efficient scheduling while the HARQ offset parameter systematically manages process identities to prevent unnecessary proliferation of HARQ processes.

The patent uses copying of HARQ process identities through the offset mechanism, where multiple configured grants can reference the same HARQ process identity with different offsets rather than requiring unique processes for each grant. This copying approach allows efficient resource utilization while maintaining the necessary distinction between different traffic flows and reducing the total number of HARQ processes required.