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

Data transmission method, device and system

A data transmission method and precoding technology, which is applied in the field of data transmission of multiple-input multiple-output relay channels, can solve problems such as the decline in transmission efficiency, and achieve the effects of improving transmission efficiency, improving bit error rate performance, and high throughput

Inactive Publication Date: 2011-06-15
HUAWEI TECH CO LTD +1
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In a large-scale wireless relay communication network, usually multiple source nodes and multiple relay nodes coexist. In the traditional relay scheme, each relay needs to forward data for each source node one by one, so that the transmission efficiency increases with the As the network size increases, the

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
  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] 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 creative efforts fall within the protection scope of the present invention.

[0026] First, the environment in which the embodiment of the present invention is applied is described, such as figure 1 Shown is a structural diagram of a wireless relay network applied in the embodiment of the present invention. It can be seen from the figure that the wireless relay network includes the source node S 1 -S Ns , a relay node R and a destination node D, wherein both the relay node R and the destination node D have a multi-antenna structure. The s...

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 embodiment of the invention provides a data transmission method, device and system. The method comprises the following steps of: receiving source signals transmitted by at least two source nodes to obtain received signals; decoding the received signals to obtain estimation signals of the source signals; performing network pre-coding on the estimation signals, and transmitting the pre-coded signals to destination nodes. In the embodiment of the invention, relay nodes perform network pre-coding on the signals transmitted by the source nodes, so that the data transmission of a multi-user multi-input multi-output (MIMO) relay channel in a wireless communication network has high throughput, and the transmission efficiency is effectively increased.

Description

technical field [0001] The present invention relates to the field of wireless technologies, and in particular to a data transmission method, device and system of a multiple-input multiple-output (Multiple-Input Multiple Output, MIMO) relay channel for multiple users in a wireless relay network. Background technique [0002] At present, in the field of mobile communication, relays are widely used to help mobile users forward data. This communication method utilizes the cooperation function of relays, so that additional cooperative diversity gains can be obtained in data transmission, thereby improving the bit error rate (Bit Error Rate) at the receiving end. Rate, BER) performance. In addition, with the introduction of the MIMO technology, the quality of relayed and forwarded data can be improved more effectively. [0003] In a large-scale wireless relay communication network, usually multiple source nodes and multiple relay nodes coexist. In the traditional relay scheme, ea...

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 Applications(China)
IPC IPC(8): H04L1/06H04L25/03
Inventor 李颖李海强楼群芳
Owner HUAWEI TECH CO LTD