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Device and method for two-way relay transmission applied to multiple-input multiple-output communication system

A communication system, two-way relay technology, applied in transmission systems, radio transmission systems, diversity/multi-antenna systems, etc., can solve problems such as reducing the peak average relay transmission power of two-way relay transmission

Active Publication Date: 2017-11-24
SPRING FOUND OF NCTU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a device and method for two-way relay transmission applied to a multiple-input multiple-output communication system to solve the problem of reducing the peak value of two-way relay transmission and the average relay transmission power

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  • Device and method for two-way relay transmission applied to multiple-input multiple-output communication system
  • Device and method for two-way relay transmission applied to multiple-input multiple-output communication system
  • Device and method for two-way relay transmission applied to multiple-input multiple-output communication system

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Embodiment Construction

[0043] The device and method for bidirectional relay transmission of the present invention can be applied to various multiple-input multiple-output (multi-input multi-output, MIMO) communication systems. In order to simplify the description and make it easier to understand, the following figure 1 as well as figure 2 The application scenarios shown are illustrated. figure 1 In the application scenario shown, each of the terminal devices T0 and T1 uses two transmitting antennas and uses Alamouti space-time coding (STC) to transmit signals, and each terminal device T0 and T1 uses only one antenna to receive signals, And the relay device R has a single antenna. figure 2 In the shown application scenario, both the terminal devices T0 and T1 and the relay device R have two transmitting antennas and two receiving antennas, and the terminal devices T0 and T1 adopt spatial multiplexing (spatial multiplexing, SM) to transmit signals.

[0044] To simplify the description and facilitat...

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Abstract

A device and method for two-way relay transmission applied to a multiple-input multiple-output communication system. The device combines signals received from a terminal device and undergoes modulus-digital processing so that the signal points are concentrated toward the center of the constellation diagram, and then The signal after modulus and digital processing is broadcasted, which can reduce the peak value of two-way relay transmission and the average relay transmission power.

Description

technical field [0001] The invention relates to a device and method for bidirectional relay transmission, in particular to a device and method for bidirectional relay transmission applied to a multi-input multi-output communication system. Background technique [0002] Relay transmission is regarded as an important technology in the continuous evolution of wireless communication networks. Traditional half-duplex relay transmission can only transmit or receive signals in one direction at any point in time, so four time slots are required to complete the two-way signal exchange assisted by relay transmission between two communication terminal devices . Two-way relay transmission can receive or transmit signals from two terminal devices at the same time, so only two time slots are needed to complete a two-way signal exchange assisted by relay transmission, thereby greatly improving spectrum utilization efficiency. [0003] An existing two-way relay transmission is an amplify-...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/026H04B7/0413H04B7/155H04W52/46
CPCH04W52/46H04B7/15528H04B7/026H04B7/0413H04W52/322
Inventor 林大卫钟翼州
Owner SPRING FOUND OF NCTU