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Method of transmitting reference signal and transmitter using the same

A technology for sending reference and reference signals, which is applied in the directions of multiple use of transmission paths, communication between multiple stations, and separation devices of transmission paths, etc.

Active Publication Date: 2013-02-20
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of pseudo-random sequences is that there are a large number of sequences available, but it has the problem of high PAPR in certain modes

Method used

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  • Method of transmitting reference signal and transmitter using the same
  • Method of transmitting reference signal and transmitter using the same
  • Method of transmitting reference signal and transmitter using the same

Examples

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Embodiment Construction

[0050] The techniques described below can be used in applications such as Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Orthogonal Frequency Division Multiple Access (OFDMA), and single Various radio access technologies such as Carrier Frequency Division Multiple Access (SC-FDMA). CDMA may be implemented through a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA may be implemented through a radio technology such as Global System for Mobile communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE). OFDMA may be implemented through wireless technologies such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WIMAX), IEEE 802-20, Evolved UTRA (E-UTRA), and the like. UTRA is part of the Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evo...

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Abstract

A method and apparatus of transmitting a reference signal in a wireless communication system is provided. A reference signal sequence is generated by using a pseudo-random sequence. A portion or entirety of the reference signal sequence is mapped to at least one resource block and is transmitted. The pseudo-random sequence is generated by a gold sequence generator which is initialized with initial values obtained by using cell identifier. The reference signal provides low PAPR and high cross correlation characteristic.

Description

technical field [0001] The present invention relates to wireless communication, and more particularly to generating and applying sequences of reference signals in a wireless communication system. Background technique [0002] Wireless communication systems are widely deployed throughout the world to provide various types of communication services such as voice or data. Generally, a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (eg, bandwidth, transmission power, etc.). Examples of multiple access systems include Code Division Multiple Access (CDMA) systems, Frequency Division Multiple Access (FDMA) systems, Time Division Multiple Access (TDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, ) system and single carrier frequency division multiple access (SC-FDMA) system, etc. [0003] In wireless communication systems, sequences are often used fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04B7/26
CPCY02B60/50Y02D30/70H04L5/0007H04L5/0098H04L27/261H04L27/2618
Inventor 李正薰李大远金沂濬安俊基
Owner LG ELECTRONICS INC
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