Information transmission method, base station and terminal

Abstract

Embodiments of the present invention disclose an information transmission method, a base station and a terminal. The method comprises the steps of configuring, by the base station, subcarrier spacing of at least one synchronization signal and a physical broadcast channel and quantities of symbols occupied by the synchronization signal and the physical broadcast channel, wherein the subcarrier spacing of the synchronization signal is 15*2m kilohertz, the subcarrier spacing of the physical broadcast channel is 15*2n kilohertz, and both m and n are integers less than or equal to 5 and greater than or equal to 0; according to a service delay demand, selecting one configuration for sending the synchronization signal and the physical broadcast channel; determining frequency domain positions and time frequency positions for sending the synchronization signal and the physical broadcast channel, wherein the frequency domain positions sending the synchronization signal and the physical broadcast channel are adjacent or at least some are identical, and the time domain positions sending the synchronization signal and the physical broadcast channel are adjacent or some are identical; and sending the synchronization signal and the physical broadcast channel to the terminal according to the selected configuration and the determined frequency domain positions and the time domain positions. Through adoption of the method, base station and terminal, the time delay for accessing the terminal to the cell is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for transmitting information, a base station and a terminal. Background technique [0002] With the continuous development of user communication needs, people hope that their own needs can be responded and processed faster. Under the traditional Long Term Evolution (LTE), synchronization signals: include Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (Secondary Synchronization Signal, SSS), two synchronization signal periods are both 5ms, both are sent in subframes (subframe) 0 and 5, but are sent in different symbols. A physical broadcast channel (Physical Broadcast Channel, PBCH) mainly transmits a master information block (MasterInformation Block, MIB), and its transmission mode is periodic transmission, with a period of 40 ms, and repeated transmission 4 times every 40 ms. For the first time, the symbols 7, 8, 9, and 10 of s...

AI Technical Summary

Problems solved by technology

[0003] Because the synchronization signal and PBCH transmission methods in the existing technology are very fixed and single, it is impossible to meet the flexible and changeable delay requirements in different scenarios of future 5G services, especially for some services with low delay requirements.

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