Signal transmission method, network equipment and terminal equipment

Abstract

The embodiment of the invention provides a signal transmission method, network equipment and terminal equipment, relates to the field of communication, and aims to solve the problem concerned with howthe network equipment transmits a signal to enable the terminal equipment to access a system supporting a plurality of subcarrier intervals. The method comprises the following steps that: the networkequipment determines the subcarrier position of a first signal to be transmitted and the subcarrier position of a second signal to be transmitted, wherein subcarriers occupied by the first signal arecontinuous subcarriers in a first group of resource particles, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource particles, the number of subcarriersoccupied by the first signal is the same as that of the second signal, and subcarrier intervals in the first group of resource particles are different from subcarrier intervals in the second group ofresource particles; and the network equipment transmits the first signal at the subcarrier position of the first signal, and transmits the second signal at the subcarrier position of the second signal. The signal transmission method in the embodiment of the invention is used by the terminal equipment to search for a cell in order to access the cell.

Description

technical field [0001] The present invention relates to the communication field, in particular to a signal sending method, network equipment and terminal equipment. Background technique [0002] In traditional digital signal transmission, the information flow is transmitted through one channel at a time, which belongs to the serial transmission method. The multi-carrier technology adopts the parallel transmission method, which converts the serial high-speed information flow into parallel and divides it into multiple parallel low-speed information flows, and then superimposes and transmits the multiple parallel low-speed information flows to form a multi-carrier The transmission system, that is, the multi-carrier technology is a technology that uses multiple carriers to transmit high-speed data information. Among them, the carrier is the radio wave of a specific frequency carrying data. [0003] Multi-carrier transmission technology has been widely used in communication sys...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a signal transmission method, network equipment, and terminal equipment, which can solve the problem of how the network equipment sends signals so that the terminal equipment can access a system that supports multiple subcarrier spacings

In this way, when the first signal and the second signal can be used for time-frequency synchronization or cell search, the terminal device can obtain relevant information for accessing the cell, so as to support the terminal device to access cells with different subcarrier spacing or use subcarrier spacing Different time-frequency resources communicate with network devices, which can solve the problem of how network devices send signals so that terminal devices can access systems that support multiple subcarrier spacings

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