Transmission method and device for virtual MIMO

A transmission method and vector technology, applied in the field of virtual MIMO transmission, can solve problems such as link transmission reliability and poor link transmission reliability

CN101783722BActive Publication Date: 2013-09-18POTEVIO INFORMATION TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: POTEVIO INFORMATION TECH CO LTD
Publication Date: 2013-09-18

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Abstract

The invention discloses a sending method for the virtual MIMO. The invention is characterized in that user terminals UE1 and UE2 use the same time-frequency resources and send information according to the same method, wherein the UE1 simultaneously sends DFT pretreatment signal vectors{Xk, Xk+1} at k time and k+1 time to a space-time block grouping encoder for space-time two-dimension encoding treatment in a form of the vector, and outputs two codeword vectors {Xk, Xk+1} at k time and the other two codeword vectors at k+1 time to send the codeword vectors respectively obtained at k time and k+1 time to a first transmitting channel to carry out sub-channel mapping, IFF operation, inserting cyclic prefixes and transmitting treatment; and the codeword vectors respectively obtained at k time and k+1 time are sent to a second channel to carry out sub-channel mapping, IFF operation, inserting cyclic prefixes and transmitting treatment. The invention also discloses a transmitter and a receiver for the virtual MIMO. The invention can fully utilize a multi-antenna system to provide spatial emission diversity gain and improve reliability of link transmission.

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Description

technical field

[0001] The present invention relates to virtual MIMO transmission technology, in particular to a virtual MIMO transmission method and device based on DFT-S-OFDM block space-time block coding. Background technique

[0002] In the LTE broadband mobile communication system, 3GPP determined that the uplink adopts a single-carrier FDMA transmission scheme based on DFT-S-OFDM. Compared with the OFDM transmission scheme, the DFT-S-OFDM transmission scheme has a low peak-to-average Preserve user-orthogonal properties.

[0003] At present, the uplink virtual MIMO transmission technology is introduced into the LTE communication system, and the technical solution to realize this technology is mainly a virtual MIMO transmission solution based on single transmit antenna DFT-S-OFDM.

[0004] figure 1 It is a two-user virtual MIMO system based on single transmit antenna DFT-S-OFDM, where each user terminal (UE) is equipped with only a single transmit antenna, and the base...

Claims

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