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Method, system and equipment for transmitting uplink reference signals

A technology of reference signal and transmitting equipment, applied in the field of communication, can solve problems such as difficult to meet the requirements, unable to meet the requirements of the LTE-A system, unfavorable uplink transmission, etc., and achieve the effect of reducing CM/PAPR

Inactive Publication Date: 2010-06-16
HUAWEI TECH CO LTD
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Problems solved by technology

[0013] It can be seen from Table 1 that for the case of using the same ZC sequence or different ZC sequences, the CM on the reference signal is greater than the CM on the data, which obviously cannot meet the requirements of the LTE-A system
In addition, for reference signals mapped to multiple component carriers, the CM of the two ZC sequences is relatively high, and it is difficult to meet the CM requirements of the PA for the uplink reference signal, which is not conducive to uplink transmission

Method used

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  • Method, system and equipment for transmitting uplink reference signals
  • Method, system and equipment for transmitting uplink reference signals

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] An embodiment of the present invention provides a method for transmitting an uplink reference signal, such as figure 1 shown, including:

[0035] Step s101 , during uplink multi-carrier aggregation, use one Zadoff-Chu sequence to generate a reference signal sequence occupying multiple component carriers.

[0036] Step s102, mapping the reference signal sequence to subcarriers of multiple component carriers to generate a reference signal. ...

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Abstract

The embodiment of the invention discloses a method, a system and equipment for transmitting uplink reference signals. The method comprises: using a Zadoff-Chu sequence to generate a reference signal sequence occupying a plurality of component carriers during uplink multi-carrier polymerization; and mapping the reference signal sequence onto sub-carriers of the component carriers so a to generate and send reference signals. In the embodiment of the invention, the reference signal sequence is generated by use of one ZC sequence, and the reference signal sequence is mapped onto the sub-carriers of the component carriers so as to generate the reference signals when the reference signals are mapped onto the component carriers, so that the aim of reducing uplink reference signal CM / PAPR is achieved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and equipment for transmitting an uplink reference signal. Background technique [0002] The maximum uplink bandwidth of the LTE (Long Term Evolution, long-term evolution) system is 20MHz, and a single-carrier transmission mechanism is adopted, and the terminal can only use continuous resources to transmit data. [0003] The uplink reference signal of the LTE system is generated by a Zadoff-Chu sequence (ZC sequence for short). ZC sequence is a kind of CAZAC (Constant Amplitude Zero Auto Correlation, constant amplitude zero autocorrelation) sequence, which has the characteristic of constant amplitude zero autocorrelation, that is, the amplitude of each element in the sequence is constant, and it is not correlated with its cyclic shift sequence. The ZC sequence is still a ZC sequence after FFT (Fast Fourier Transform, Fast Fourier Transform) transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L27/34
Inventor 曲秉玉何玉娟杨瑞娜
Owner HUAWEI TECH CO LTD
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