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Method and device for transmitting synchronization signal

A technology of synchronization signal and auxiliary synchronization signal, which is applied in the field of communication and can solve problems such as cell search in narrowband systems

Inactive Publication Date: 2018-02-13
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to propose a method and device for sending synchronization signals, aiming to solve the problem of how to perform cell search in a narrowband system

Method used

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  • Method and device for transmitting synchronization signal
  • Method and device for transmitting synchronization signal

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Embodiment Construction

[0084] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the embodiments of the present invention.

[0085] refer to figure 1 , figure 1 It is a schematic flowchart of a method for sending a synchronization signal provided by an embodiment of the present invention.

[0086] Such as figure 1 As shown, the method for sending a synchronization signal includes:

[0087] Step 101, in a narrowband system, the base station sends a synchronization signal on multiple subcarriers of multiple symbols, and the synchronization signal includes;

[0088] Step 102, the mobile t...

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Abstract

The invention discloses a method and a device for sending a synchronous signal. The method includes: in a narrowband system, sending a synchronization signal on a plurality of subcarriers of a plurality of symbols, and the synchronization signal includes: receiving the synchronization signal, and determining the different ID information distributed on a plurality of frames. The cell ID corresponding to the synchronization signal, so as to provide a synchronization signal mode of the New Radio (NR) narrowband system, which can realize the narrowband system with flexible bandwidth, and provide a unified SSS sequence, and the length of the SSS sequence depends on the number of symbols in the time domain number and number of subcarriers.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communication, and in particular, to a method and device for sending a synchronization signal. Background technique [0002] Narrow Band Internet of Things (NB-IoT) has a narrow bandwidth of 200KHz, which can be directly deployed on Global System for Mobile Communication (GSM) networks and Long Term Evolution (LTE) networks. Emerging technologies that reduce deployment costs. For example, IoT applications such as Internet of Vehicles, smart medical care, and smart home can all adopt this technology. NB-IoT has four major characteristics: First, it provides improved indoor coverage. Under the same frequency band, NB-IoT has a gain of 20dB compared with the existing network, and the coverage increases by 100 times; second, it has the ability to support massive connections. The area can support 100,000 connections, support low latency sensitivity, ultra-low device success, low device ...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04L5/00
CPCH04W56/00H04L5/0053
Inventor 周欢孙鹏
Owner BEIJING XINWEI TELECOM TECH
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