Generating method, receiving method and receiving device of leading signal

A technology of a preamble signal and a receiving method, applied in the field of communication, can solve the problem that the preamble signal does not give a targeted and reasonable solution, etc.

Active Publication Date: 2018-07-31
宁波矽久微电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the DVB_T2 and ATSC3.0 standards do not give a targeted and reasonable solution to the desi...

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  • Generating method, receiving method and receiving device of leading signal
  • Generating method, receiving method and receiving device of leading signal
  • Generating method, receiving method and receiving device of leading signal

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Embodiment Construction

[0079] In order to make the object, technical solution and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention. The term "unit" or "module" used below may be hardware, software or a combination of the two to achieve predetermined functions. When the embodiment is described in one of the implementation modes, the other two modes can also realize the concept of the present invention Intentions, therefore also belong to the scope of contribution of the present invention.

[0080] figure 1 It is a schematic diagram of the composition of the preamble signal of the present invention. like figure 1 As shown, the main body of the preamble signal is composed of multiple segments, the most basic one is comp...

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Abstract

The invention provides a generating method, receiving method and receiving device of a leading signal. The leading signal is generated by the time domain constant modulus sequence, including a full time domain structure of the basic segment and the repeating segment; the leading signal is used to perform delay autocorrelation leading symbol capture on one or more baseband signals, so as to intercept all or part of the signals containing the known sequence and the filling sequence of the leading signal under the corresponding bandwidth; and the signals are used for performing frequency offset estimation in the time domain or frequency domain with the known sequence and filling sequence under the bandwidth; timing synchronization is performed, whether an expected received signal is in the received signal or not is confirmed, and the bandwidth value is confirmed; therefore, the peak to average power ratio PAPR is lowered, and the generated leading signal can be applied to a single carriercommunication system. Because the modulator end does not need the discrete inverse Fourier transform IFFT module, the generating method of the leading signal is simplified on the premise of guaranteeing the excellent performance of the system, and the difficulty and complexity are reduced.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a method for generating and receiving a leading channel and a corresponding device. Background technique [0002] In the existing communication physical layer system and broadcast physical layer system, the method for realizing time synchronization between the sending end and the receiving end is basically based on preamble symbols. The preamble signal is a symbol sequence known to both the sending end and the receiving end of the physical layer system. The preamble signal (Preamble) is used as the beginning of the physical frame and only appears once in each physical frame. It marks the beginning of the physical frame. The preamble must enable accurate and reliable time synchronization between the transmitter and receiver. At the same time, since the subsequent equalization decoding module of the receiver is very sensitive to the frequency offset of the carrier, the preamb...

Claims

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Application Information

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IPC IPC(8): H04L27/26
CPCH04L27/2602H04L27/2627H04L27/2692
Inventor 黄戈邢观斌李超柯仙胜王白羽方成铨韩雄川樊智猛
Owner 宁波矽久微电子有限公司
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