D2D Terminal Resource Allocation via Dynamic Power Control
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Solution Overview
Problem
Existing communication schemes in Internet of Vehicles systems are inefficient in utilizing transmission resources, leading to performance loss and waste of spectrum resources due to the inability to fully leverage the multiplexing potential of communication resources between dense mobile access points and short communication distances.
Innovation Solution
A communication method for terminal devices in device-to-device (D2D) communication that dynamically allocates resources by determining information about nearby devices, including interference capability and location, to optimize transmit power and resource usage, allowing for flexible multiplexing of transmission resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional communication schemes are used in Internet of Vehicles systems, then communication can be established between devices, but transmission resources cannot be fully utilized leading to performance loss and waste of spectrum resources
Solution Approach 1:
The patent dynamically adjusts transmit power parameters based on distance to second terminal devices and their interference capabilities. By changing the power parameter adaptively rather than using fixed power levels, the system maximizes spectrum resource utilization while minimizing performance loss through optimized power consumption.
2Reliability
If transmit power is increased to improve communication reliability, then communication quality improves, but interference to other terminal devices increases
Solution Approach 1:
The patent applies different transmit power levels to different spatial locations and communication scenarios. By determining the distance to specific second terminal devices and their interference capabilities, the system locally optimizes power transmission - using higher power when needed for reliability and lower power when sufficient, thereby reducing unnecessary interference to specific devices in specific locations.
Solution Approach 2:
The transmit power parameter is dynamically adjusted based on real-time conditions including distance to other devices and their interference capabilities. This parameter change allows the system to maintain communication reliability when necessary while minimizing interference harm by reducing power when high power is not required.
3Productivity
If rigid resource allocation is used, then resource management is simple, but resource utilization efficiency is low
Solution Approach 1:
The patent transforms rigid resource allocation into a dynamic system that adapts to changing conditions. The first terminal device determines transmit power based on real-time factors such as distance to second terminal devices and their interference capabilities. This dynamic approach improves resource utilization efficiency by allowing flexible power adjustment while the computational complexity is managed through standardized determination procedures.
Data Source
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AI summary
Provided in the embodiments of the present invention are a device-to-device D2D terminal device communication method, a terminal device, and a network device. The method comprises: a first terminal device determines information of at least one second terminal device using target resources; and, on the basis of the information of the at least one second terminal device, the first terminal device uses the target resources to implement D2D communication. The device-to-device D2D terminal device communication method, the terminal device, and the network device provided in the embodiments of the present invention can flexibly allocate communication resources, and thereby improve the utilisation rate of frequency spectrum resources.