In-Vehicle Electronic Device Signaling With Preconfigured Waveforms
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Solution Overview
Problem
Existing resource allocation-based signaling methods for vehicle emergencies are not suitable for emergency situations due to bidirectional signaling requirements, leading to potential delays and instability in communication.
Innovation Solution
An electronic device embedded in or attached to a vehicle can transmit a signal with a specified waveform independently of allocated resources to notify an emergency state, using a communication circuit, memory, and processor to ensure high reliability and low latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource allocation-based signaling is used for emergency notification, then communication reliability is improved through established protocols, but communication latency increases due to bidirectional signaling requirements
Solution Approach 1:
The system pre-configures uplink resources and specifies waveforms in advance through downlink control information (DCI) before emergencies occur. When an emergency is detected, the electronic device can immediately transmit using these pre-allocated resources without waiting for resource allocation signaling, thereby reducing latency while maintaining reliability through pre-established communication parameters
2Stability of the object's composition
If resource allocation-based signaling is used for emergency notification, then communication stability is improved through controlled resource usage, but communication speed deteriorates due to signaling overhead
Solution Approach 1:
Resources and waveform specifications are allocated and configured in advance through DCI messaging before emergencies occur. When an emergency is detected, the device immediately transmits using pre-configured resources without waiting for resource allocation, thereby increasing communication speed while maintaining stability through pre-established controlled resource usage
Solution Approach 2:
The system skips the resource allocation signaling step by using pre-allocated resources that are immediately available. The electronic device transitions directly from emergency detection to signal transmission using the specified waveform and pre-assigned resources, bypassing the time-consuming bidirectional resource allocation process while maintaining communication stability
Data Source
AI summary
An electronic device comprises a communication circuitry, at least one processor comprising processing circuitry, memory for storing instructions, wherein instructions, when executed by the at least one processor, cause the electronic device to receive, from a base station, a down link control indicator (DCI) format 0_2; determine whether a state associated with the electronic device is in an emergency state, based on the determination that the state associated with the electronic device is in another state different from the emergency state; transmit, to the base station, a first signal based on resources indicated by another DCI format different from the DCI format 0_2; and based on the determination that the state associated with the electronic device is in the emergency state: generate information associated with the determined state, and transmit, to the base station, a second signal including the information based on resources indicated by the DCI format 0_2.