A signal sending method, network equipment and terminal equipment

Abstract

Embodiments of the present invention provide a signal sending method, network equipment, and terminal equipment, which relate to the communication field and 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. The method is as follows: the network device determines the subcarrier position of the first signal to be transmitted and the subcarrier position of the second signal to be transmitted, the subcarriers occupied by the first signal are consecutive subcarriers in the first group of resource elements, and the second The subcarriers occupied by the signal are continuous subcarriers in the second group of resource elements, the number of subcarriers occupied by the first signal is the same as the number of subcarriers occupied by the second signal, and the interval between subcarriers in the first group of resource elements is the same as that of the second group of resource elements. The subcarrier intervals in the two groups of resource elements are different; the network device transmits the first signal at the determined subcarrier position of the first signal, and transmits the second signal at the determined subcarrier position of the second signal. The embodiment of the present invention is used for a terminal device to search for a cell to access a 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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