Carrier wave tracking method and device
A carrier tracking and carrier technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of small working bandwidth and small range of power amplifiers, and achieve the effect of expanding the range and improving the working bandwidth.
Active Publication Date: 2014-07-23
COMBA TELECOM SYST CHINA LTD
View PDF3 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the prior art, the carrier search is performed in the frequency band where the signal is located, and the range of the carrier search of the front-end digital circuit of the power amplifier is small, so that the operating bandwidth of the power amplifier is also small
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] The technical solutions provided by the embodiments of the present invention are applied to the scene of carrier tracking and searching in a mobile communication network. The carrier tracking system receives the radio frequency signal sent by the base station. The radio frequency signal is down-converted through the attenuator, baseband demodulator, amplifier and intermediate frequency filter to generate an intermediate frequency signal. The intermediate...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention discloses a carrier wave tracking method and device and relates to the technical field of communication control. Through the carrier wave tracking method and device, the search range of carrier waves of a front-end digital circuit of a power amplifier can be expanded, so that the operation bandwidth of the power amplifier is increased. The method includes the first step of obtaining communication frequency bands and carrier signals in a mobile communication network, the second step of setting a signal frequency band, obtaining the power of the carrier signals in the signal frequency band and determining the frequency band where the carrier signals are located in the communication frequency bands according to the power, and the third step of carrying out carrier searching in the frequency band where the carrier signals are located to obtain a central frequency point of the carrier signals. The carrier wave tracking method and device are applicable to scenes where the carrier waves are tracked and searched for in the mobile communication network.
Description
technical field [0001] The invention relates to the technical field of communication control, in particular to a carrier tracking method and device. Background technique [0002] In the mobile communication network, due to the continuous growth of users' demand for data, the mobile communication network needs to be further optimized and upgraded. In the IMT-Advanced (International Mobile Telecommunications-Advanced, Advanced International Mobile Communications) system, both the base station and the repeater require the power amplifier to have higher efficiency, and to improve the efficiency of the power amplifier needs to improve the front-end digital circuit carrier of the power amplifier. search efficiency. [0003] In order to improve the carrier search efficiency of the front-end digital circuit of the power amplifier, in the prior art, the carrier search system determines the coarse search position of the detection point according to the carrier bandwidth and the prese...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
Inventor 徐辉龙润坚
Owner COMBA TELECOM SYST CHINA LTD