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Method for generating a reference signal sequence using grouping

A reference signal sequence and sequence technology, applied in multiplexing communication, pilot signal distribution, wireless communication, etc., can solve the problem of large cross-correlation value

Active Publication Date: 2009-12-09
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when reference signals with different lengths arrive as interference from neighboring cells and are transmitted through the same frequency band or overlap in frequency bands, the cross-correlation value will be very large

Method used

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  • Method for generating a reference signal sequence using grouping
  • Method for generating a reference signal sequence using grouping
  • Method for generating a reference signal sequence using grouping

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Embodiment Construction

[0084] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that with the Figure 1 The detailed description disclosed above is intended to describe exemplary embodiments of the invention, and is not intended to describe the only ways in which the invention can be practiced.

[0085] In the following, the detailed description includes specific matters to provide a more complete understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without these specific matters. In order to prevent the concept of the present invention from being obscured, well-known constructions and devices are omitted, or main functions based on the respective constructions and devices are shown in the form of block diagrams. Also, wherever possible, the same reference numbers will be used throughout the drawings and t...

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Abstract

Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.

Description

technical field [0001] The present invention relates to methods for generating reference signal sequences, more particularly to methods for grouping sequences with variable lengths corresponding to one or more resource block sizes, methods for generating reference signal sequences and Method for generating reference signal sequences using Zadoff-Chu (ZC) sequences. Background technique [0002] The following description is mainly discussed around the 3GPP LTE system, but the present invention is not limited to this system, and the exemplary 3GPP LTE system is only for those skilled in the art to understand the present invention more clearly. [0003] There are many sequences for transmitting signals, but in the 3GPP LTE (3rd Generation Partnership Project Long Term Evolution) system, the CAZAC (Constant Amplitude Zero Auto-Correlation: constant envelope zero autocorrelation) sequence The basic sequence of sending signals is formed. CAZAC sequences can be used for various c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04J13/00H04W16/00H04L5/00
CPCH04L5/0016H04L27/2613H04L27/2607H04L5/0048H04L5/0053H04L5/0073H04L5/06H04L5/0012H04J13/0059H04L27/261H04J11/005H04J13/0062H04L23/02H04L5/0051
Inventor 卢珉锡韩承希权荣炫李玹佑金东哲郭真三
Owner LG ELECTRONICS INC
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