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Signal transmission method, device and system

A signal transmission and signal technology, applied in the field of communication, can solve the problems of increasing cost and increasing the complexity of the receiver of the terminal, and achieve the effect of saving cost

Active Publication Date: 2020-09-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, it can be stipulated in the standard that the network side uses a fixed subcarrier spacing to send public signals. For terminals, in addition to the subcarrier spacing supported by the terminal, this fixed subcarrier spacing must be used to receive public signals to be able to successfully access network, but this solution will increase the complexity of the receiver of the terminal and increase the cost

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  • Signal transmission method, device and system
  • Signal transmission method, device and system
  • Signal transmission method, device and system

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Embodiment Construction

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] figure 1 The flow chart of the signal transmission method provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method of this embodiment may include:

[0047] S101. The network device generates a first signal to be sent.

[0048] S102. The network device sends the first signal to the terminal.

[0049] In th...

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Abstract

Provided in the embodiments of the present invention are a signal transmission method, apparatus, and system, said method comprising: a network device generating a to-be-sent first signal; sending said first signal to a terminal; the first signal is borne in a frequency domain by a first subcarrier; the subcarrier spacing of the first subcarrier is a first subcarrier spacing; the phases of the first signal in the time domain within a first duration are continuous; the first duration is greater than the symbol length corresponding to a second subcarrier spacing; the ratio of the first subcarrier spacing to the second subcarrier spacing is N, and N is an integer greater than 1, such that when using a third subcarrier spacing, the terminal may successfully receive the first signal without the terminal being required to transmit a signal using the same subcarrier spacing as that of the network device; for receiving a signal, the terminal uses a subcarrier spacing it supports, thereby avoiding the deficiency of the complexity of the receiver of the terminal and reducing costs.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a signal transmission method, device, and system. Background technique [0002] According to the current 3GPP discussion on 5G technology, 5G technology will adopt a waveform based on Orthogonal Frequency Division Multiplexing (English: Orthogonal Frequency Division Multiplexing, referred to as OFDM). The waveform parameters based on OFDM involve subcarrier spacing, OFDM symbol length, etc. 5G technology needs to support at least three services, enhanced mobile broadband (English: Enhanced mobile broadband, abbreviated: eMBB), massive machine-type communications (English: Massive machine-type communications, abbreviated: mMTC) and high-reliability and low-latency communication (English: : Ultra-reliable and low-latency communications, referred to as: URLLC). The waveform parameters corresponding to different services are also different. For ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/08
CPCH04W48/08
Inventor 焦淑蓉花梦
Owner HUAWEI TECH CO LTD