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Communication method for sharing feature information using preamble, method for generating the preamble, and communication system to which the method is applied

A communication method and technology of feature information, which are applied in multi-frequency code systems, communication between multiple stations, wireless communication, etc.

Inactive Publication Date: 2016-08-03
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above information bits can become a burden in the communication system

Method used

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  • Communication method for sharing feature information using preamble, method for generating the preamble, and communication system to which the method is applied
  • Communication method for sharing feature information using preamble, method for generating the preamble, and communication system to which the method is applied
  • Communication method for sharing feature information using preamble, method for generating the preamble, and communication system to which the method is applied

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Embodiment Construction

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0048] figure 1 It is a conceptual diagram showing whether a frequency band usable via a wireless communication system is currently being used.

[0049] refer to figure 1 , the wireless communication system can use any one or more frequency bands among frequency bands with indexes 1, 2, 3, and 4. For example, in figure 1 In , the wireless system uses frequency bands with indices 1 and 4, and does not use frequency bands with indices 2 and 3.

[0050] When communication between the transmitter and other receivers is requested, one or more of the unused frequency bands of indices 2, 3 may be allocated to the communication. To this end, the transmitter needs to transmit to the receiver information indicating that the frequency bands with indices 1 and 4 are currently being used, and the frequency bands with indices 2 and 3 are not currently being used.

[00...

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Abstract

A communication method of a transmitter using a preamble in a wireless communication system includes the steps of: determining two or more subcarriers among a plurality of subcarriers to be used for the preamble; phase values ​​are mapped to the two or more subcarriers; and the preamble is transmitted using the two or more subcarriers. Here, the preamble includes a real number component having a first repetition pattern and an imaginary number component having a second repetition pattern in a preset time interval in the time domain, and the first repetition pattern and the second repetition pattern The relationship of the repeating pattern shows characteristic information of the wireless communication system.

Description

technical field [0001] The following embodiments relate to a method for generating a preamble in a communication system, and a method for communicating using the preamble. Background technique [0002] Wireless communication systems can operate through various transmission modes like diversity mode, MIMO mode, and so on. The reception mode of the receiver will be different according to the above transmission mode. Therefore, information about the transfer mode needs to be shared between the sender and receiver. [0003] Additionally, wireless communication systems may be equipped with multiple frequency bands that may be used. In this case, information on frequency bands in use and frequency bands not in use needs to be shared between the transmitter and receiver. [0004] Furthermore, the sender can share not only the above-mentioned information with the receiver, but also other kinds of information with the receiver. However, in order for the transmitter to share the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04B7/26H04B7/02
CPCH04L5/0023H04L5/0048H04L27/2605H04B7/0689H04L5/0091H04L27/26132H04L27/26136H04L27/26134H04W72/044
Inventor 严重善黄貹铉郑会润郑炳章金昌周高光进
Owner ELECTRONICS & TELECOMM RES INST