Signal synchronization method and signal synchronization device
A technology of signal synchronization and synchronization sequence, applied in the field of communication, can solve the problems of large amount of computation and high computational complexity, and achieve the effect of reducing computational complexity
Active Publication Date: 2017-03-08
HUAWEI TECH CO LTD
View PDF5 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In this way, the mobile terminal must detect all received data points, which requires a large amount of calculation and high computational complexity.
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
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0025] The mobile terminal (Mobile Terminal) in the embodiment of the present invention may be referred to as User Equipment (User Equipment, "UE" for short), terminal (Terminal), mobile station (Mobile Station, "MS" for short), and so on. The mobile terminal may be a mobile phone (or "cellular" phone) or a computer with a mobile terminal, such as a portable, pocket, hand-held, computer built-in or vehicle-mounted mobile device.
[0026] figure 1 is a sch...
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 provides a signal synchronization method and a signal synchronization device. The method comprises the steps of carrying out coprime sampling on a locally stored first synchronization sequence, thereby obtaining a first sampling sequence, determining a plurality of short sequences according to a second synchronization sequence carried by a synchronization signal sent by a base station, and carrying out coprime sampling on the plurality of short sequences, thereby obtaining a plurality of sampling sequences; and when a peak in a first group of correlation values obtained by carrying out cross-correlation operation on the first sampling sequence and the plurality of sampling sequences is greater than a first preset threshold value, taking the position of the second synchronization sequence corresponding to the peak in the first group of correlation values as the start position for realizing synchronization with the base station. According to the embodiment of the method and the device, the cross-correlation operation is carried out on the sequences obtained after the coprime sampling is carried out on the local synchronization sequence and the received synchronization sequence, and the start position for realizing the synchronization with the base station is determined, in this way, the operation complexity can be reduced.
Description
technical field [0001] The present invention relates to the communication field, and more particularly, to a signal synchronization method and a signal synchronization device. Background technique [0002] To access the base station and communicate with the base station, the mobile terminal needs to be synchronized with the base station. Symbol timing synchronization is the first step in the mobile terminal's cell search to achieve synchronization. In a general communication system, the specific position of bit synchronization or frame synchronization can be obtained through the good autocorrelation property of the bit synchronization sequence or frame synchronization sequence. Similarly, in a long term evolution technology (Long Term Evolution, LTE) system, the position of symbol timing synchronization can also be obtained based on the autocorrelation characteristic of the synchronization sequence. [0003] In a Long Term Evolution-Machine-To-Machine (LTE-M) system, an ef...
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): H04L7/00H04W56/00
CPCH04L7/00
Inventor 王铠尧刘永俊钟怡
Owner HUAWEI TECH CO LTD