V2X Information Transmission Adaptive Parameter Adjustment
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Solution Overview
Problem
Current Vehicle-to-Everything (V2X) technologies, particularly those based on LTE, face challenges in achieving high transmission reliability and low latency, as existing methods like retransmission are insufficient to meet the requirements of 99.999% reliability and 3 ms delay, especially when channel conditions vary.
Innovation Solution
An information transmission method and apparatus that involves a base station or user equipment (UE) sending instruction information to report acknowledgement or channel quality information, allowing for adaptive adjustment of wireless transmission parameters, such as maximum transmit power and modulation and coding schemes, based on received feedback to optimize data retransmission and channel quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If retransmission is used to improve transmission reliability, then reliability is improved, but delay increases
Solution Approach 1:
The patent implements dynamic adjustment of transmission parameters including modulation and coding schemes (MCS), transmit power, and resource allocation based on real-time channel quality feedback. This dynamic adaptation allows the system to achieve high reliability without relying solely on retransmission, thereby reducing delay.
Solution Approach 2:
The patent establishes a feedback mechanism where channel quality information is reported from receiving UE to transmitting UE or base station, enabling adaptive modulation and coding. This feedback loop allows the system to optimize transmission parameters proactively, improving reliability while minimizing the need for retransmission and reducing overall delay.
2Reliability
If transmission parameters are adjusted to improve reliability, then reliability is improved, but system complexity increases
Solution Approach 1:
The patent enables user equipment to autonomously select and adjust transmission parameters based on pre-configured tables and channel quality measurements. The transmitting UE can independently determine appropriate MCS and power levels without constant base station intervention, reducing network complexity while maintaining high reliability.
Solution Approach 2:
The patent utilizes pre-defined parameter tables that map channel quality indicators to specific transmission parameters including MCS, transmit power, and resource allocation. By changing parameters according to these standardized mappings rather than implementing complex real-time optimization algorithms, the system achieves high reliability with controlled complexity.
3Productivity
If adaptive transmission parameter adjustment is implemented, then transmission efficiency is improved, but measurement and control difficulty increases
Solution Approach 1:
The patent employs pre-configured parameter tables that define the relationship between channel quality indicators and transmission parameters before actual data transmission. This preliminary preparation eliminates the need for complex real-time calculations during transmission, improving efficiency while simplifying the measurement and control process through standardized mappings.
Data Source
AI summary
Provided are an information transmission method and apparatus, and computer storage medium. The method includes following steps: a base station or a second user equipment (UE) sends instruction information to a first UE, where the instruction information is used for instructing the first UE to report at least one of acknowledgement information or channel quality information through a first interface or a second interface; if the base station or the second UE receives the acknowledgement information sent by the first UE, the base station or the second UE determines whether to retransmit data through the first interface according to the acknowledgement information; if the base station or the second UE receives the channel quality information sent by the first UE, the base station or the second UE determines a wireless transmission parameter of the first interface according to the channel quality information.