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Method and device for controlling independent data stream

A control method and data flow technology, applied in the field of communication, can solve problems such as poor data flow transmission quality, affecting system transmission effect, and undetectable receivers

Inactive Publication Date: 2013-08-07
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Considering that the gain corresponding to some beams is too small to make the receiver unable to detect, the present invention is made. For this reason, the main purpose of the present invention is to provide an independent data flow control method to solve the problems caused by the corresponding gain of beams in the related art. If it is too small, the receiver cannot detect it, resulting in poor transmission quality of the data stream and affecting the transmission effect of the entire system

Method used

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  • Method and device for controlling independent data stream
  • Method and device for controlling independent data stream
  • Method and device for controlling independent data stream

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0029] method embodiment

[0030] In this embodiment, an independent data flow control method is provided, figure 1 A brief processing flow of the method is given, such as figure 1 shown, including the following processing:

[0031] The signal is transmitted from the source through channel coding and modulation mapping, precoding processing, and then deprecoding (or decoding) at the receiving end, and output after detection, decoding and decoding.

[0032] figure 2 is a flowchart of an independent data flow control method according to an embodiment of the present invention.

[0033] like figure 2 As shown, the method includes:

[0034] Step S202, the sending...

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Abstract

The invention discloses a method for controlling an independent data stream, which comprises the steps: a high-speed data stream is demultiplexed into M low-speed data streams by a transmitting terminal; the M low-speed data streams are mapped on M transmitting antennae through precoding, and the M stands for the number of the transmitting antennae and is larger than or equal to 1; the data streams of the M transmitting antennae reach a receiving terminal through N*M space channels, the receiving terminal codes the received data streams, and the N stands for the number of receiving antennae and is larger than or equal to 1; the signal to noise ratio of each data stream coded by the receiving terminal is calculated; the total channel gain of multiple-input multiple-output channels is calculated; a predetermined threshold is set, a beam-transmitting data stream is used, the grain of the beam-transmitting data stream is greater than or equal to the predetermined threshold, and the numberof the transmitted data streams is fed back to the transmitting terminal. In addition, the invention also discloses a device for controlling an independent data stream. By the technical scheme, the transmission quality of the streams can be increased, and consequently, the transmission effect of the whole system is increased.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and device for independent data flow control. Background technique [0002] Improving the frequency band utilization of limited bandwidth and overcoming multipath fading of wireless channels are severe challenges faced by broadband wireless communication systems. Multi-Input Multi-Output (MIMO) technology can increase the occupied signal bandwidth Under the premise of improving the transmission efficiency and transmission reliability of the system. [0003] For array antennas, precoded MIMO is a multi-antenna transmission technology that integrates space diversity (beam forming) and space multiplexing. The space diversity here uses orthogonal multi-beams (not just the antenna itself). The optimal multi-beam is the eigenvector of the channel, and independent data streams can be transmitted in these multiple beams. Due to the different data streams Transmits on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/08
Inventor 段亚军
Owner GLOBAL INNOVATION AGGREGATORS LLC