Joint NR-DSRC Transmission Scheduling for Overlap Prioritization
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing concurrent transmissions and prioritizations between LTE and NR communications, particularly in half-duplex systems, and in handling overlaps with dedicated short-range communications (DSRC) without causing interference.
Innovation Solution
Implementing joint scheduling rules and channel busy ratio (CBR) analysis to prioritize LTE or NR communications based on system conditions, and managing overlaps with DSRC transmissions using specific prioritization rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If concurrent transmissions of LTE and NR are managed independently, then each protocol can operate autonomously, but interference occurs and resource utilization decreases
Solution Approach 1:
The patent combines LTE and NR scheduling into a unified joint scheduling framework. The network node determines transmission parameters for both protocols simultaneously, considering their interactions, rather than scheduling them separately. This merging approach prevents interference while optimizing overall resource utilization across both communication protocols.
Solution Approach 2:
The patent introduces a joint scheduling mechanism as an intermediary between LTE and NR transmissions. This mediator coordinates resource allocation, timing, and power settings for both protocols, ensuring they operate harmoniously without mutual interference while maximizing spectral efficiency and resource utilization.
2Device complexity
If LTE and NR transmissions are scheduled without coordination, then scheduling complexity is reduced, but transmission conflicts and interference increase
Solution Approach 1:
The patent merges LTE and NR scheduling operations into a single coordinated process. The network node performs joint determination of transmission parameters for both protocols simultaneously, which increases scheduling complexity but eliminates transmission conflicts and interference between the two systems.
3Adaptability or versatility
If DSRC and NR transmissions overlap without prioritization rules, then communication flexibility is maintained, but transmission reliability decreases
Solution Approach 1:
The patent implements dynamic prioritization rules that adapt based on transmission conditions. When DSRC and NR transmissions overlap, the system dynamically determines which transmission to prioritize based on factors such as transmission type, channel conditions, and quality of service requirements, maintaining both flexibility and reliability.
Solution Approach 2:
The patent changes transmission parameters such as timing, frequency, and power levels based on prioritization rules. When conflicts between DSRC and NR transmissions are detected, the system adjusts these parameters to resolve overlaps and ensure reliable transmission of high-priority communications while maintaining overall system flexibility.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a method for wireless communication performed by a user equipment, UE, comprises: identifying an overlap between a New Radio, NR, transmission and a dedicated short-range communication, DSRC, transmission; obtaining one or more rules for prioritizing the NR transmission or the DSRC transmission based at least in part on the overlap between the NR transmission and the DSRC transmission; and transmitting at least one of the NR transmission or the DSRC transmission based at least in part on the one or more rules. Numerous other aspects are described.