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Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme

A communication system and reference signal technology, applied in the field of communication systems, can solve problems such as the possible number limitation of pilot patterns and the limitation of the number of differentiated base stations.

Active Publication Date: 2007-05-30
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology

In summary, the slope of the pilot pattern is limited by the coherence bandwidth 100
[0019] Because the generation of pilot patterns used to identify base stations included in an OFDM communication system is limited by the coherence bandwidth and coherence time, the possible number of pilot patterns is also limited
If the number of base stations included in the OFDM communication system increases, the number of distinguishable base stations is limited due to the limitation of the possible number of pilot patterns

Method used

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  • Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme
  • Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme
  • Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme

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Embodiment Construction

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, detailed descriptions of known functions and configurations incorporated herein have been omitted for brevity.

[0042] The present invention proposes a method for transmitting / receiving through one or more antennas for base station (BS) and sector identification in a communication system ("OFDM communication system") using an Orthogonal Frequency Division Multiplexing (OFDM) scheme scheme of the pilot signal. Specifically, the present invention proposes a scheme for transmitting / receiving pilot signals through one or more antennas in an OFDM communication system to ensure that the base station and sector identities have minimal interference with each other.

[0043] FIG. 2 is a diagram illustrating an internal structure of a pilot signal generator in an OFDM communication system according to an embodiment of the present invent...

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Abstract

Disclosed is a method for providing a pilot symbol for base station identification in a Multiple-Input Multiple-Output (MIMO) communication system having one or more transmission antennas, wherein the pilot symbol is comprised of a first sequence having a good cell identification characteristic and a second sequence for reducing a peak-to-average power ratio (PAPR) for all of pilot symbols.

Description

technical field [0001] The present invention generally relates to a communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme, and more particularly, to an apparatus and method for transmitting / receiving pilot signals for distinguishing base stations and sectors. Background technique [0002] In order to provide users with services with various qualities of service (QoS) at high data rates, extensive research is being conducted on a 4th generation (4G) communication system as a next-generation communication system. In particular, 4G communication systems are being studied to provide a communication system capable of supporting mobile in broadband wireless access (BWA) communication systems such as wireless local area network (LAN) systems and wireless metropolitan area network (MAN) systems performance and QoS for high-speed services. [0003] In the 4G communication system, research on the OFDM scheme is underway as a suitable scheme for high-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J11/00H04J99/00H04L27/26
CPCH04L27/262H04L27/2613H04L1/0072H04L5/0048H04L5/0026H04L27/0008H04L27/20H04L27/362H04L27/26132H04J11/0069H04L1/0071H04J13/0048H04L1/0057
Inventor 朴圣恩崔承勋朴东植金宰烈张智皓周判谕
Owner SAMSUNG ELECTRONICS CO LTD
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