Unlock instant, AI-driven research and patent intelligence for your innovation.

Synchronization method, device and UE when measuring TD-SCDMA cell

A TD-SCDMA, cell technology, applied in the directions of synchronization devices, electrical components, wireless communication, etc., can solve problems such as high overhead, and achieve the effect of solving large overhead and reducing overhead

Active Publication Date: 2012-09-05
DATANG MOBILE COMM EQUIP CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In view of this, the present invention provides a synchronization method, device and UE for measuring TD-SCDMA cells, so as to solve the problem of large overhead in the coarse synchronization process in the prior art

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synchronization method, device and UE when measuring TD-SCDMA cell
  • Synchronization method, device and UE when measuring TD-SCDMA cell
  • Synchronization method, device and UE when measuring TD-SCDMA cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] In the prior art, when coarse synchronization is performed, the feature ratio is calculated on the received complete TD frame data. After the whole frame data is calculated, it is judged that the position where the maximum feature window ratio appears is the position of the DwPTS. It can be seen from this that, in the prior art, when determining the position of the DwPTS, it is necessary to calculate the entire frame of data, which brings about a problem of high cost.

[0066] In order to solve the above problems, the basic idea of ​​the improved technical solution provided by the present invention is: receive TD-SCDMA data in the idle time slot of GSM; move and calculate the characteristic window ratio on the data; when the calculated characteristic window ratio exceeds the preset When the threshold value is reached, the calculation is stopped, and the approximate location of the DwPTS is determined according to the location of the data corresponding to the characterist...

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

No PUM Login to View More

Abstract

The invention discloses a method for synchronizing while measuring the TD-SCDMA (time division-synchronous code division multiple access) cell, which comprises the following steps: receiving TD-SCDMA data in the idle time slot of GSM (global system for mobile communications), wherein the TD-SCDMA data include the data in at least one TD-SCDMA frame; mobile-computing a feature window ratio on the TD-SCDMA data; stopping computing the data of the current TD-SCDMA frame when the feature window ratio exceeds the pre-set threshold value, and confirming the position of a downlink pilot time slot according to the position of the data corresponding to the feature window ratio; confirming the code number and the accuracy position of a synchronizing sequence; and acquiring the synchronizing sequence in the downlink pilot time slot according to the accurate position of the downlink pilot time slot. The invention discloses a device for synchronizing while measuring the TD-SCDMA cell at the same time. The invention dispenses with the computation of each frame datum, thereby reducing the cost and solving the problem of the larger cost during the coarse synchronizing process in the prior art.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, relates to a synchronization method, device and UE (user equipment) in the process of measuring TD-SCDMA in the GSM system. Background technique [0002] In the current communication system, the second-generation communication system and the third-generation communication system coexist. How to coordinate the two communication systems is particularly important. The measurement speed and accuracy are directly related to the performance of the communication system. [0003] In the TD-SCDMA / GSM dual-mode system, when the GSM measures the TD-SCDMA cell, that is, the GSM system receives the TD-SCDMA signal in the idle time slot, thereby detecting the TD-SCDMA cell. [0004] According to the characteristics of the GSM system, the idle window that can be used for measurement can be calculated: in a GSM frame, there are at least 3 idle time slots, every 26 fr...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
Inventor 郭华永
Owner DATANG MOBILE COMM EQUIP CO LTD