Wireless Communication Sequencing for Industrial IoT
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing communication sequencing between sidelinks and access links, particularly in industrial IoT settings, where interference and scheduling complexities arise due to cyclic and periodic traffic patterns, leading to potential delays and reduced network efficiency.
Innovation Solution
Implementing a method where wireless devices and base stations communicate by receiving information that an uplink transmission on a sidelink precedes an uplink transmission on an access link, and a downlink transmission on a sidelink precedes a downlink transmission on an access link, using communication schemes such as single-hop, two-hop, or hybrid schemes to minimize control message overhead and processing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If communication sequencing between sidelink and access link is managed without explicit prioritization information, then the system maintains simpler protocol structure, but transmission delays increase and network efficiency decreases
Solution Approach 1:
The patent applies preliminary action by providing prioritization information in advance through RRC signaling or MAC CE indicators before the actual transmission occurs. The network configures the UE with priority levels for different link types (sidelink vs access link) beforehand, so that when transmission scheduling decisions need to be made, the UE already has the necessary guidance to resolve conflicts without complex real-time processing. This advance configuration reduces transmission delays while keeping the real-time protocol structure relatively simple.
2Adaptability or versatility
If multiple communication links (sidelink and access link) operate simultaneously without sequencing rules, then communication versatility is improved, but interference increases and scheduling complexity worsens
Solution Approach 1:
The patent segments the communication system into distinct link types (sidelink and access link) with separate prioritization rules. By dividing the communication resources and scheduling decisions into manageable segments with clear priority assignments, the system can support multiple simultaneous links without creating unmanageable scheduling complexity. Each link type has its own priority level configured by the network, making it easier to manage interference and scheduling decisions.
3Adaptability or versatility
If the system supports both single-hop and two-hop communication schemes, then adaptability is improved, but control message overhead increases
Solution Approach 1:
The patent implements a universal prioritization mechanism that works across both single-hop and two-hop communication schemes. The same RRC signaling and MAC CE indicator structures are used regardless of which communication scheme is active, reducing control message overhead. The prioritization framework is designed to be multi-functional, handling different link types and communication schemes through a unified approach rather than requiring separate control mechanisms for each scheme.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may receive, for communications with one or more of a base station or another wireless device, information identifying that an uplink transmission on a sidelink and a downlink transmission on a sidelink are to precede an uplink transmission on an access link and a downlink transmission on an access link. The wireless device may communicate, with the one or more of the base station or the other wireless device, based at least in part on the information identifying that the uplink transmission on the sidelink and the downlink transmission on the sidelink are to precede the uplink transmission on the access link and the downlink transmission on the access link. Numerous other aspects are provided.