A method and device for synchronizing or broadcasting a narrowband system

A narrowband, synchronous signal technology, applied in the field of communication, can solve the problems of difficult to guarantee the reliability of single-channel transmission, limited bandwidth resources, poor performance, etc.

Active Publication Date: 2020-05-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the related art that due to the limited bandwidth resources of the narrowband system, the terminal is mostly in a low-speed scene, and the performance of resisting deep fading is poor, which makes it difficult to guarantee the transmission reliability when using a single channel, the embodiment of the present invention provides a narrowband system. The method and device for system synchronization or broadcasting, the technical scheme is as follows:

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  • A method and device for synchronizing or broadcasting a narrowband system
  • A method and device for synchronizing or broadcasting a narrowband system
  • A method and device for synchronizing or broadcasting a narrowband system

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Embodiment 1

[0096]An embodiment of the present invention provides a method for synchronizing or broadcasting a narrowband system, which can be executed by a terminal, such as figure 1 As shown, the method includes the following steps:

[0097] Step 11: Determine at least one first frequency point from at least two first frequency points, the physical channels on the at least two first frequency points are used to transmit at least one of synchronization signals and broadcast signals, and each first frequency point The information transmitted on the physical channel on the network is the same, and at least two first frequency points are distributed in the system bandwidth of the narrowband system at a set first frequency point interval.

[0098] Among them, the number and location (namely frequency points) of physical channels for transmitting synchronization signals or broadcast signals are preset in the protocol, and the terminal needs to determine the frequency points of synchronization...

Embodiment 2

[0103] An embodiment of the present invention provides a method for synchronizing or broadcasting a narrowband system, which can be performed by a base station, such as figure 2 As shown, the method includes the following steps:

[0104] Step 21: Determine at least two first frequency points, the physical channels on the at least two first frequency points are used to transmit at least one of synchronization signals and broadcast signals, and the at least two first frequency points use the set first Frequency intervals are distributed in the system bandwidth of the narrowband system.

[0105] Wherein, the number and location of physical channels for transmitting synchronization signals or broadcast signals are preset in the protocol.

[0106] Step 22: Transmitting the same information on physical channels on each first frequency point.

[0107] In an implementation of this embodiment, when the physical channel on the first frequency point is used to transmit the synchroniza...

Embodiment 3

[0110] The embodiment of the present invention provides a method for synchronizing or broadcasting a narrowband system. In this embodiment, two synchronous channels and two broadcast channels are taken as examples to describe the present invention in detail. The synchronous channels in this embodiment are For the physical channel on the second frequency point for transmitting the synchronization signal, the broadcast channel is the physical channel on the first frequency point for transmitting the broadcast signal. Such as image 3 As shown, the method includes the following steps:

[0111] Step 30: the base station determines the frequency points of the two synchronization channels, and the frequency points of the two synchronization channels are distributed in the system bandwidth of the narrowband system at a set first frequency point interval.

[0112] Wherein, the number and positions of the synchronization channels are preset.

[0113] It should be noted that, in this ...

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Abstract

The present invention relates to the technical field of communications. Disclosed are a method and apparatus for synchronizing or broadcasting a narrow band system. The method comprises: determining at least one first frequency point from at least two first frequency points, physical channels on the at least two first frequency points being configured to transmit at least one of a synchronization signal and a broadcast signal, the physical channels on all the first frequency points transmitting the same information, and at least two first frequency points being distributed in a system bandwidth of a narrow band system at an interval with respect to a set first frequency point; and receiving the information transmitted on the physical channels on the determined first frequency points. By setting at least two frequency points spaced with respect to a frequency point in a system bandwidth of a narrow band system, a narrow band terminal can receive at least two paths of identical synchronization signals or broadcast signals via physical channels on a plurality of frequency points, thereby achieving redundant setting of a synchronization channel and broadcast channel of the narrow band system in frequency dimensionality, and improving the transmission reliability of the synchronization channel and broadcast channel of the narrow band system.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for synchronizing or broadcasting a narrowband system. Background technique [0002] Machine-to-machine (M2M) communication refers to communication that does not require human intervention. The business scenarios of M2M communication mainly include smart home, smart building, smart measurement (such as meter reading business), logistics tracking, and environmental monitoring. , smart agriculture and disaster alarm, etc.; it is estimated that by 2022, the number of M2M communication terminal connections will reach 50 billion. The massive M2M market puts forward higher requirements for communication systems, requiring M2M terminals to meet low cost and low power consumption requirements. Compared with the current Human to Human ("H2H") terminals, in order to meet the requirements of low cost and low power consumption, M2M terminals adopt narrowband communi...

Claims

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Application Information

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IPC IPC(8): H04W4/06
CPCH04W4/06
Inventor于光炜吴毅凌张维良罗之虎
OwnerHUAWEI TECH CO LTD