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Method and device for demodulating list of reference data symbol

A technology of reference symbols and demodulation data, which is applied in the field of demodulation data reference symbol sequences, can solve complex problems such as demodulation, and achieve the effect of simple demodulation

Inactive Publication Date: 2011-05-11
ZTE CORP
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Problems solved by technology

[0017] The present invention is proposed in view of the complex problem of the demodulation of the data reference symbol sequence in the related art. 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 list of reference data symbol

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Embodiment Construction

[0042] Functional Overview

[0043] Considering the relatively complex demodulation of the data reference symbol sequence in the related art, the embodiment of the present invention provides a method and device for demodulating the data reference symbol sequence, the method includes: When the pilot sequence is generated, the demodulation data reference symbol sequence is generated according to different initialization methods between the layers that perform code division multiplexing; Tune the data reference symbol sequence.

[0044] 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.

[0045] method embodiment

[0046] figure 2 It is a flowchart of a method for demodulating a data reference symbol sequence according to an embodiment of the present ...

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Abstract

The invention discloses a method and a device for demodulating a list of reference data symbols, wherein the method comprises the following steps of: producing a list of demodulating reference data symbols according to different initialization modes among the layers which are applied to code division multiplexing while producing a pilot sequence of data demodulation pilots; and then producing a list of demodulating reference data symbols by using a same initialization mode among the layers which are applied to frequency division multiplexing and / or time division multiplexing. The method and the device for demodulating a list of reference data symbols provided by the invention have the advantage that the list of reference data symbols can be demodulated simply and conveniently.

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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IPC IPC(8): H04W72/12H04J13/00
Inventor 孙云锋张文峰张峻峰姜静
Owner ZTE CORP
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