Computing method and device of sounding reference signal channel coefficient matrix

A technology for detecting reference signals and channel coefficients, which is applied in the field of calculation methods and devices for detecting reference signal channel coefficient matrices, and can solve problems such as incomplete calculation of channel coefficient matrices and inaccurate matrix ranks, and solve inaccurate calculations and incomplete calculations Effect

Active Publication Date: 2014-12-24
WUHAN HONGXIN TELECOMM TECH CO LTD
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Problems solved by technology

[0006] In view of this, the purpose of the embodiments of the present invention is to provide a method and device for calculating the channel coefficient

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  • Computing method and device of sounding reference signal channel coefficient matrix
  • Computing method and device of sounding reference signal channel coefficient matrix
  • Computing method and device of sounding reference signal channel coefficient matrix

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[0041]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] LTE R10 uplink transmission introduces the concept of multi-port, and expands SRS to support up to 4 ports for transmission. The sequence transmitted by each port adopts different cyclic shifts. For a single UE (user equipment), a maximum of 4 ports occupy the same RE position in parallel Transmission of SRS is similar to the parallel transm...

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Abstract

An embodiment of the invention discloses a computing method and device of a sounding reference signal channel coefficient matrix. The method includes: acquiring an SRS (sounding reference signal) frequency-domain signal sequence which an i-th receiving antenna receives from time-frequency resources occupied by a j-th port of UE (user equipment); multiplying a conjugate of an original SRS sequence transmitted by the j-th port, by the SRS frequency-domain signal sequence to obtain a noise-containing frequency-domain channel coefficient sequence; expanding the noise-containing frequency-domain channel coefficient sequence; performing inverse discrete Fourier transform to obtain a noise-containing time-domain channel coefficient sequence; subjecting the noise-containing time-domain channel coefficient sequence to windowing and denoising; subjecting the denoised time-domain channel coefficient sequence to discrete Fourier transform to obtain a frequency-domain channel coefficient sequence; linearly combining front N values from the frequency-domain channel coefficient sequence to obtain an SRS channel coefficient of the i-th receiving antenna, corresponding to the j-th port of the UE.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a calculation method and device for a sounding reference signal channel coefficient matrix. Background technique [0002] In the LTE (Long Term Evolution) system, the base station (eNodeB) needs to detect the Sounding Reference Signal (SRS) to obtain channel coefficients, which are used to estimate the uplink channel quality from the UE side to the eNodeB. [0003] LTE R10 uplink transmission introduces the concept of multi-port, and expands SRS to support up to 4 ports for transmission. The sequence transmitted by each port adopts different cyclic shifts. For a single UE, a maximum of 4 ports occupy the same RE position to transmit SRS in parallel. Similar to different UEs occupying the same frequency band to transmit SRS in parallel. [0004] In the case of uplink multi-port transmission, taking the UE uplink using two ports to send SRS and the base station using 2 ante...

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Application Information

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IPC IPC(8): H04L5/00
Inventor 施洋张元雨朱宇霞
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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