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Method of signal transmission and device thereof

A signal transmission and signal transmission technology, which is applied in the direction of error prevention/detection through transmission repetition, multi-frequency code system, etc., can solve the problem of insufficient flexibility in determining the number of symbol repetitions, and achieve the goal of increasing signaling overhead and flexible repetition times Effect

Active Publication Date: 2013-04-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0007] Embodiments of the present invention provide a signal transmission method and a signal transmission device, which can solve the problem that the determination method of the number of symbol repetitions in the prior art is not flexible enough

Method used

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  • Method of signal transmission and device thereof
  • Method of signal transmission and device thereof
  • Method of signal transmission and device thereof

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Embodiment Construction

[0026] 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 some of the embodiments of the present invention, but 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 creative efforts fall within the protection scope of the present invention.

[0027] figure 1 It is a flowchart of a signal transmission method according to an embodiment of the present invention. figure 1 The method is executed by the sending end of the signal (such as a transmitter).

[0028] 101. Generate a transmission signal, where the transmission signal includes at least one symbol.

[0029] For example, for an OFDM transmission signal, the above-mentioned at least one symbol may be an OFDM symbol, and may include contr...

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Abstract

The invention provides a communication method and a communication device. The communication method includes that generating transmission signals which comprise at least one symbol, and repeatedly sending symbols which comprise at least two phase to indicate the repeat sending number of the symbols. According to the communication method and the communication device, repeat sending symbols have different phase, the repeat sending number of the symbols is implicitly indicated, so repeat number can be flexibly determined and signaling overhead is not increased.

Description

technical field [0001] The embodiments of the present invention relate to the field of wireless communication, and more specifically, to a signal transmission method and a signal transmission device. Background technique [0002] For the usual wireless local area network, the general coverage radius is only about 100-200m, and the design requirement of the IEEE (Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers) 802.11ah protocol is to make the maximum coverage radius reach 1km, which will make the traditional The coverage radius of WLAN is greatly improved, and new features need to be introduced in various aspects to support wider coverage. [0003] Taking the OFDM (Orthogonal frequency-division multiplexing) system as an example, the system divides the high-speed data stream into several low-speed data streams, and simultaneously modulates these low-speed data streams in several mutually orthogonal transmitted on subcarri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
CPCH04L1/08
Inventor 高磊陈小锋乔治·卡尔切夫陈斌
Owner HUAWEI TECH CO LTD
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