Sending method apparatus and detection method and apparatus of synchronization signal

A technology of synchronization signal and detection method, applied in the field of communication, can solve problems such as long synchronization time, save energy consumption, ensure fast synchronization, and avoid failure to fast synchronization

Inactive Publication Date: 2017-09-19
HUAWEI TECH CO LTD
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Problems solved by technology

If the terminal device has not completed communication with the base station within a channel occupation time, the terminal device needs to monitor when the base station re-seizes the channel to continue communication, and the far-coverage terminal device with poor channel quality needs to detect multiple times to complete synchronization. thus longer sync times

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  • Sending method apparatus and detection method and apparatus of synchronization signal
  • Sending method apparatus and detection method and apparatus of synchronization signal
  • Sending method apparatus and detection method and apparatus of synchronization signal

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Embodiment Construction

[0065] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention.

[0067] Although the M2M system is taken as an example in the background technology section, those skilled in the art should know that the present invention is not only applicable to the M2M system, but also applicable to other wireless communication systems, such as Long Term Evolution (LTE ) system, Global System for Mobile Communication (GSM), Mobile Communication System (Universal Mobile Telecommunications Systemc, UMTS), Code Division Multiple Access (CDMA) system, and new network systems, etc. The following uses...

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Abstract

The embodiment of the present invention relates to a method for sending a synchronization signal, a detection method and a device. The method for detecting a synchronization signal includes: determining the current state, and the state includes a state that has just been powered on or a state that has just been converted from a sleep state to a wake-up state or connected state; and/or, determine the coverage level of belonging, and the coverage level includes a near coverage level or a far coverage level; according to the determined current state and/or the coverage level of attribution, select the first mode or the second The first method includes receiving and detecting the synchronization signal according to each subframe containing one synchronization signal; the second method includes receiving and detecting the synchronization signal according to each subframe containing multiple synchronization signals. It can be seen from the above that, in the embodiment of the present invention, it is possible to quickly synchronize the far-coverage terminals.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for sending a synchronous signal, a method for detecting it and a device. Background technique [0002] Machine to machine (M2M) technology is a technology that transmits information and data between machines through a wireless network, and is an important direction for the next development of mobile communications. The concept of M2M was first proposed in 1999 by the Auto.ID laboratory of the Massachusetts Institute of Technology. It is widely used in many fields, including intelligent transportation, building control system, home intelligent control system, video surveillance system, industrial monitoring, etc. The Internet of Things industry is considered to be the fourth wave of the information industry after computers, the Internet and mobile communication networks, and it is the development direction of the future network. [0003] The physical channels between M2M syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0027H04L1/0031
Inventor 温容慧于光炜张武荣于峰
Owner HUAWEI TECH CO LTD
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