Unlock instant, AI-driven research and patent intelligence for your innovation.
Method and device for determining adjacent problem cells during identical-frequency joint inspection
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A neighbor cell and problem technology, which is applied to determine problem neighbor areas during co-frequency joint inspection, can solve problems such as deterioration of channel estimation and degradation of demodulation performance
Active Publication Date: 2014-04-02
DATANG MOBILE COMM EQUIP CO LTD
View PDF8 Cites 2 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] The purpose of the present invention is to provide a method for determining problematic neighboring cells during co-frequency joint inspection, so as to realize the determination of problematic neighboring cells to solve the problem of channel estimation deterioration of the current cell (that is, the current cell) due to the occurrence of problematic neighboring cells , The problem of demodulation performance degradation
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0058] see figure 1 , this embodiment provides a method for determining a problematic neighboring cell during co-frequency joint inspection, the method starts at step 101, obtains the original channel estimation result of the current cell, and determines the current cell according to the original channel estimation result of the current cell The original interference value of the cell. In this embodiment, the neighboring cell is a cell adjacent to the current cell.
[0059] In step 102, determine the channel estimation result of the current cell after the first interference elimination, and determine the interference value of the current cell after the first interference elimination according to the channel estimation result of the current cell after the first interference elimination .
[0060] In step 103, it is determined whether there is a problematic neighbor cell in the neighbor cell of the current cell according to the original interference value and the interference ...
Embodiment 2
[0078] see image 3 and Figure 4 , this embodiment provides a specific implementation method for determining problematic neighboring cells during co-frequency joint inspection. In step 301, the OM configures N neighboring cell IDs. , OM is Operation Maintenance, which means operation and maintenance software in Chinese. In practical applications, it can be a community management station or a management system in a community management station.
[0079] In step 302, after configuration, the antenna data is sent to the channel estimation module, and the original result of the channel estimation of each cell is obtained according to the same-frequency neighbor cell ID included last time It contains the original result of the channel estimation of this cell and the channel estimation results of neighboring cells n=0..N K a is the number of antennas k a =0,...,K a -1. Here, the present cell is the current cell mentioned in the present invention.
[0080] According to th...
Embodiment 3
[0095] see Figure 5 to Figure 8 , this embodiment provides a device for determining problematic neighboring cells during co-frequency joint detection, including: an original interference value determining unit 501 , a first interference value determining unit 502 , a problematic neighboring cell judging unit 503 and a problematic neighboring cell determining unit 504 .
[0096] The original interference value determination unit 501 is configured to acquire an original channel estimation result of the current cell, and determine the original interference value of the current cell according to the original channel estimation result of the current cell.
[0097] The first interference value determining unit 502 is configured to determine the channel estimation result of the current cell after the first interference cancellation, and determine the first channel estimation result of the current cell after the first interference cancellation of the current cell The noise value afte...
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 invention provides a method for determining adjacent problem cells during identical-frequency combined joint inspection. The method comprises the steps that the original channel estimation result of the current cell is obtained, and the original interference value of the current cell is determined according to the original channel estimation result of the current cell; the channel estimation result of the current cell after the first interference elimination is determined, and in addition, the interference value of the current cell after the first interference elimination is determined according to the channel estimation result of the current cell after the first interference elimination; whether an adjacent cell of the current cell has adjacent problem cells or not is determined according to the original interference value and the interference value after the first interference elimination; under the condition of adjacent problem cell existence, the current cell and any one adjacent cell of the current cell are subjected to secondary interference elimination, the channel estimation result of the current cell after the secondary interference elimination is determined, in addition, the interference value of the current cell after the secondary interference elimination is determined according to the channel estimation of the current cell after the secondary interference elimination, and whether the corresponding adjacent cells are adjacent problem cells or not is determined according to the original interference value and the interference value after the secondary interference elimination.
Description
technical field [0001] The invention relates to the communication field, in particular to a method and a device for determining problematic adjacent cells during co-frequency joint inspection. Background technique [0002] For the TDSCDMA system based on time-division synchronous code division multiple access technology, using the same-frequency algorithm can effectively counter the interference of users in the same-frequency adjacent cells and improve system performance. The same-frequency algorithm is a means to effectively remove the interference of the same-frequency adjacent cell signals on the channel estimation of the cell by using multi-cell channel estimation interference elimination. However, in actual field applications, there may be a phenomenon that the interference does not decrease but rises after the interference is eliminated due to the strong correlation of the adjacent cell codewords or the incorrect configuration of the adjacent cells due to human reasons...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More