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Multi-antenna time-domain training sequence filling method and device

A technology of training sequence and filling method, applied in the field of communication, can solve the problems of reduced spectral efficiency and channel estimation accuracy, and achieve the effect of high spectral efficiency and low complexity

Active Publication Date: 2019-04-02
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for traditional schemes, the cost will increase as the number of transmit antennas increases, which inevitably results in a significant decrease in spectral efficiency and channel estimation accuracy

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  • Multi-antenna time-domain training sequence filling method and device
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  • Multi-antenna time-domain training sequence filling method and device

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] The method and device for filling the multi-antenna time-domain training sequence according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0039] figure 1 It is a flowchart of a method for filling a multi-antenna time-domain training sequence according to an embodiment of the present invention.

[0040] Such as figure 1 As shown, the multi-antenna time-domain training sequence filling method includes the following steps:

[0041] S1. Determine the training ...

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Abstract

The invention discloses a multi-antenna time domain training sequence filling method and device. The method comprises: generating a measurement matrix; optimizing the matrix block related values of the measurement matrix according to the column mutual incoherence of the measurement matrix demanded by compressed sensing; respectively filling the training sequences in the optimized training sequence set in the protection intervals of the data frames of every sending antenna; sending the training sequences together with data to be sent; finally determining that there is no interference area among the blocks according to the length L of a channel, reconstructing the channel through a preset structured compressed sensing reconstructing algorithm. According to the multi-antenna time domain training sequence filling method and device provided by the embodiment of the invention, the feature that the time domain sparsity of the wireless channel and the multi-antenna channel space are related is fully utilized; the channel time domain impulse response is reconstructed through the structured compressed sensing theory; and the method and the device are featured by low complexity, high spectrum efficiency and high precision.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for filling a multi-antenna time-domain training sequence. Background technique [0002] In recent years, with the continuous growth of communication requirements, MIMO (multiple input multiple output, multiple input multiple output) systems have received extensive attention from the academic community, mainly because MIMO systems have high system capacity and spectrum efficiency. At the same time, OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology can also effectively improve spectrum efficiency and improve system performance in frequency selective channels. Therefore, the MIMO-OFDM system is gradually becoming an important technology in the communication field, and has been widely used in various communication systems, and will also occupy a large proportion in future communication systems. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L27/26H04B7/0413H04B7/06
CPCH04B7/0413H04B7/0684H04L25/0204H04L27/2613
Inventor 杨昉马旭潘长勇丁文伯宋健
Owner TSINGHUA UNIV