Signal transmission method and system
A signal transmission and signal technology, applied in the field of communication, can solve the problems of high cost of RGNSS, difficult to maintain, complicated production process of multi-strand twisted pair cables, etc., and achieve the effect of reducing cost and maintenance difficulty and ensuring strength
Inactive Publication Date: 2016-03-23
ZTE CORP
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Problems solved by technology
[0006] The present invention provides a signal transmission method and system to at least solve the problems of high cost of RGNSS and complex and difficult manufacturing process of multi-strand twisted-pair cables connecting base stations and satellites when RGNSS is used for base station satellite timing in the prior art. maintenance problem
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[0025] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0026] In this embodiment, a signal transmission method is provided, image 3 is a flowchart of a signal transmission method according to an embodiment of the present invention, such as image 3 As shown, the process includes the following steps:
[0027] Step S102, the sending end device modulates the signal to be sent;
[0028] Step S104, the sending end device sends the modulated signal to be sent to the receiving end device through a radio frequency coaxial cable, wherein the sending end device is a remote global satellite navigation system RGNSS antenna, and the receiving end device is a base station; or, the sending end device is The base station and the receiving end device are RGNSS antenn...
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The invention discloses a signal transmission method and system. The method comprises the following steps: a sending end equipment modulates a to-be-sent signal, and the sending end equipment sends the to-be-sent signal after modulation to receiving end equipment through a radio-frequency coaxial cable, wherein the sending end equipment is a remote global navigation satellite system (RGNSS) antenna, and the receiving end equipment is a base station, or the sending end equipment is the base station, and the receiving end equipment is an RGNSS antenna. Through the signal transmission method and system, the problems of high RGNSS cost, complex preparation process of multi-strand twisted pair cable connecting the base station and a satellite and difficult maintenance of base station and satellite time service in the prior art when an RGNSS mode is adopted are solved, so intensity of a transmitted satellite signal is guaranteed, and cost and the maintenance difficulty of a connecting line between the RGNSS antenna and the base station are reduced.
Description
technical field [0001] The present invention relates to the communication field, in particular, to a signal transmission method and system. Background technique [0002] For wireless base stations, some systems (such as Code Division Multiple Access (CDMA for short) / Time Division Synchronous Code Division Multiple Access (TD-SCDMA for short) / Time Division Duplex (TimeDivisionDuplex) , referred to as TDD)-Long-Term Evolution (Long-Term Evolution, referred to as LTE)) wireless base stations require absolute alignment of time phases between base stations. However, wireless base stations of some standards (such as Global system for Mobile Communication (GSM for short) / UMTS Terrestrial Radio Access Network (UTRAN for short) / Frequency Division Duplex (FDD for short)-LTE)) usually only Synchronization of base station system clock frequency is required, and alignment is not required for time phase. However, with the evolution of some new technologies, such as Dynamic Frequency and...
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IPC IPC(8): H04B7/185H04B7/26
CPCH04B7/185H04B7/26
Inventor 邱文才戚晓霞罗文胜佘志兴
Owner ZTE CORP