Priority Indication for Multi-Slot Sidelink Transmission
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing communication protocols across multiple technologies and releases, particularly in 5G networks, leading to suboptimal performance and resource utilization.
Innovation Solution
The implementation of advanced communication protocols and network architectures, including New Radio (NR) user and control plane protocol stacks, alongside flexible bandwidth management and carrier aggregation techniques, to enhance communication efficiency and adaptability across different technologies and releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple consecutive slots are used for transmission, then data transmission efficiency is improved, but priority management complexity increases
Solution Approach 1:
The patent segments the priority management by introducing separate priority indicators for different transmission directions (first priority indicator for first direction, second priority indicator for second direction). This allows independent priority management for each transmission direction, reducing the complexity of managing priorities across multiple consecutive slots while maintaining high transmission efficiency.
Solution Approach 2:
The patent uses priority indicators as intermediary elements that mediate between the transmission protocol and the priority management requirements. These indicators are inserted into the MAC PDU structure to carry priority information, enabling efficient priority-based scheduling without complex direct management mechanisms.
2Reliability
If priority indicators are added to MAC PDU, then priority-based scheduling is improved, but message format complexity increases
Solution Approach 1:
The patent merges the priority indicator with the existing MAC PDU structure by inserting it as a subheader or field within the MAC PDU format. This integration approach allows priority-based scheduling to be implemented without creating a completely new message format, thus maintaining compatibility with existing protocols while adding the necessary priority management capabilities.
Solution Approach 2:
The priority indicator is designed to serve multiple functions: it indicates priority level, specifies transmission direction, and enables scheduling decisions. This multi-functionality reduces the need for separate dedicated fields for each function, thereby minimizing the increase in message format complexity while achieving reliable priority-based scheduling.
3Productivity
If flexible bandwidth management is implemented, then resource utilization is improved, but protocol complexity increases
Solution Approach 1:
The patent implements flexible bandwidth management by allowing dynamic adjustment of bandwidth parameters based on transmission requirements. The protocol includes mechanisms to dynamically allocate and reconfigure bandwidth resources across multiple consecutive slots, enabling optimal resource utilization while managing protocol complexity through standardized dynamic adjustment procedures.
Data Source
AI summary
A first wireless device receives from base station a message enabling multi-consecutive slots transmission in a resource pool. The first device selects, based on a first priority value of a plurality of transport blocks in the multi-consecutive slots transmission, one or more consecutive time slots for the multi-consecutive slots transmission. Each of the plurality of transport blocks is associated with a respective priority value. The first wireless device transmits to a second wireless device in one or more consecutive time slots the multi-consecutive slots transmission, the multi-consecutive slots transmission. The first sidelink control information of the multi-consecutive slots transmission indicates a second priority value of the plurality of transport blocks in the multi-consecutive slots transmission.