Transmission resource indication method and network equipment

Abstract

Provided are a transmission resource indication method and a network device. The transmission resource indication method comprises: a first network device detecting a synchronisation signal sent by a second network device, the synchronisation signal comprising transmission resource configuration information of a cell or a cluster where the first network device is located; and the first network device acquiring the transmission resource configuration information of the cell or the cluster where the first network device is located from the synchronisation signal. The transmission resource indication method and the network device provided in the embodiments of the present invention indicate the transmission resource configuration information by using the synchronisation signal, so as to provide a flexible resource indication method applicable to communication in the Internet of Vehicles and a D2D communication system.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular, to a transmission resource indication method and network equipment. Background technique [0002] In recent years, the Internet of Vehicles communication has attracted more and more attention. The Internet of Vehicles system can improve the safety and reliability of road traffic through the communication between vehicles and roadside units (Roadside Unit, RSU). traffic efficiency. [0003] The Internet of Vehicles system in the United States is also called Wireless Access in the Vehicular Environment (WAVE), and its physical layer adopts the Institute of Electrical and Electronics Engineers (IEEE) 802.11p protocol, which is a Communication protocol extended by IEEE 802.11 standard. IEEE 802.11p is mainly used for in-vehicle electronic wireless communication. It is essentially an extension of IEEE 802.11 and is in line with the relevant...

AI Technical Summary

Problems solved by technology

The WAVE system has the following advantages: easy deployment, low cost, mature technology, and is suitable for transmission between vehicles, but it also has corresponding disadvantages: when there are many vehicles in the system, resource conflicts are prone to occur, and the system performance is poor. The delay is uncontrollable, the Quality of Service (QoS) cannot be guaranteed, and the transmission distance is limited. In addition, the WAVE system needs to deploy a large number of RSUs, and the cost is too high

[0006] However, when using the cellular network for vehicle-to-vehicle communication, there may still be the following problems: In the IC scenario, because the terminal moves at a high speed, it is possible that the terminal can only detect the synchronization signal, or the terminal can detect certain system If the transmission resource configuration information required by the terminal for vehicle-to-vehicle communication is carried in the system message or broadcast message, the terminal may not be able to obtain the transmission resource configuration information

In the OOC scenario, all terminals in the cluster transmit on pre-configured competing resources, but as the number of terminals in the cluster increases, large resource conflicts and transmission delays will occur, thereby reducing the reliability of communication sex and timeliness

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