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Method and device for demodulating data reference mark sequence

A technology of sequence and pilot sequence, which is applied in the direction of digital transmission system, modulated carrier system, communication between multiple stations, etc., can solve the problem of complex demodulation of data reference symbol sequence, and achieve the effect of simple demodulation

Inactive Publication Date: 2014-12-17
ZTE CORP
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  • Description
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Problems solved by technology

[0013] The present invention is proposed for the problem that the demodulation of the data reference symbol sequence is relatively complicated. Therefore, the main purpose of the present invention is to provide a method and device for demodulating the data reference symbol sequence to solve the above problems

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  • Method and device for demodulating data reference mark sequence
  • Method and device for demodulating data reference mark sequence

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Embodiment Construction

[0034] Functional Overview

[0035] Considering that the demodulation of the data reference symbol sequence in the related art is relatively complicated, the embodiments of the present invention provide a method and device for demodulating the data reference symbol sequence. The method includes: when generating the pilot sequence of the data demodulation pilot DMRS, adopting the same DMRS sequence generation method among the cells corresponding to the same coordination cluster.

[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] method embodiment

[0038] The method for demodulating a data reference symbol sequence according to an embodiment of the present invention includes the following steps:

[0039]When generating the pilot sequ...

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Abstract

The invention discloses a method and device for demodulating a data reference mark sequence. In the method, when a pilot frequency sequence of a data demodulation pilot frequency DMRS (Demodulation Reference Signal) is generated, the same DMRS sequence generation method is adopted for all cells corresponding to the same cooperative cluster. The method can comprise the steps of: defining virtual cell identification for the same cooperative cluster; and generating the DMRS sequence according to the virtual cell identification among all the cells inside the same cooperative cluster. By means of the invention, the problem that the demodulation of the data reference mark sequence is relatively complicated is solved, and the effect of demodulating the data reference mark sequence simply and conveniently is further achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for demodulating a data reference symbol sequence. Background technique [0002] The high-order multi-antenna technology is one of the key technologies of the Long Term Evolution Advanced (LTE-A or LTE-Advanced, Long Term Evolution Advanced) system, and is used to increase the system transmission rate. In order to achieve channel quality measurement and data demodulation after the introduction of high-order multi-antenna technology, the LTE-Advanced system defines two types of pilot symbols: data demodulation pilot (DMRS, Demodulation Reference Signal) and channel quality measurement pilot ( CSI-RS, Channel State Information-Reference Signal), wherein the demodulation pilot is used as a reference symbol for physical downlink shared channel (PDSCH, Physical Downlink Shared Channel) demodulation. The measurement pilot is used for CSI (channel state information...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04L27/00
Inventor 孙云锋姜静张峻峰朱常青
Owner ZTE CORP
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