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Antenna array and communication method used for full duplex communication

An antenna array and array technology, applied in the field of full-duplex communication, can solve the problems of difficulty, limited application scenarios, inability to separate the transmitting and receiving antennas, etc.

Active Publication Date: 2014-09-17
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application scenarios of this scheme are very limited
In normal base stations, such separation of transmit and receive antennas is not possible, so it is difficult to use this technique

Method used

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  • Antenna array and communication method used for full duplex communication
  • Antenna array and communication method used for full duplex communication
  • Antenna array and communication method used for full duplex communication

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Experimental program
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Embodiment Construction

[0058] Full Duplex Active Antenna Array

[0059] A first aspect of the present invention provides an antenna array, characterized in that it includes:

[0060] - a first sub-array having a plurality of first antenna elements;

[0061] - a second sub-array having a plurality of second antenna elements;

[0062] At the same time, one of the first sub-array and the second sub-array is used for transmitting signals, and the other is used for receiving signals to perform full-duplex communication,

[0063] Wherein, the first subarray is separated from the second subarray, and the polarization direction of the first antenna element of the first subarray is orthogonal to the polarization direction of the second antenna element of the second subarray .

[0064] image 3 A prior art antenna array with a transmitter is shown (left), and a new full-duplex antenna array design according to an embodiment of the present invention (right). This new array includes MxN (M=2, N=8) active...

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PUM

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Abstract

In order to solve the disadvantages of the existing full duplex communication, the invention provides an antenna array and a communication method used for the full duplex communication. The antenna array comprises a first sub array with a plurality of first antenna elements and a second sub array with a plurality of second antenna elements. At the same time, one in the two sub arrays is used for sending a signal, the other one is used for receiving a signal, and thus the full duplex communication is carried out, wherein the first sub array and the second sub array are separated, and the polarization direction of the first antenna elements of the first sub array is orthogonal to the polarization direction of the second antenna elements of the second sub array. The antenna array has a high isolation degree between full duplex receiving and sending, and the self interference of full duplex receiving and sending is reduced.

Description

technical field [0001] The present invention relates to wireless communication, and more particularly to full-duplex communication. Background technique [0002] In traditional two-way communication systems, half-duplex techniques (such as TDD time-division duplex and FDD frequency-division duplex) are usually used to separate transmit and receive signals. [0003] The present invention aims to propose a technique for realizing full-duplex communication. A long time ago, full-duplex communication has attracted widespread attention, but until today full-duplex communication still lacks technical operability. Full duplex means that a wireless node is able to transmit and receive at the same time using the same carrier frequency. Full duplex is very attractive because it has the potential to double the spectral efficiency of the system. Full-duplex can also solve the problem of hidden nodes in a competitive environment based on wireless networks (such as WiFi, Bluetooth, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04L5/14H04L1/00
Inventor 罗庆霖杨涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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