Signal emitting and receiving method based on signal compression and extrapolation technology and implementation device thereof

A technology of signal compression and signal transmission, which is applied in the field of communication, can solve the problems of incapable signal transmission and low utilization rate of system time slots, and achieve the effect of improving the utilization rate of resources

Active Publication Date: 2013-06-05
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the system time slot utilization rate is low and more signals cannot be transmitted within a limited time, the present invention proposes a signal transmission and reception method based on signal compression and extrapolation technology and its implementation device

Method used

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  • Signal emitting and receiving method based on signal compression and extrapolation technology and implementation device thereof
  • Signal emitting and receiving method based on signal compression and extrapolation technology and implementation device thereof
  • Signal emitting and receiving method based on signal compression and extrapolation technology and implementation device thereof

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specific Embodiment approach 1

[0042] Specific implementation mode 1. Combination image 3 To illustrate this embodiment, the specific steps of a signal transmission and reception method based on signal compression and extrapolation technology described in this embodiment are:

[0043] Signal transmission method:

[0044] Step 1. At the transmitter of the digital baseband transmission system, input the symbol sequence {a n} (n is a positive integer of 0n} is composed of +1 or -1, and the symbol sequence {a n} for grouping, and each 4-bit signal is a group to obtain a parallel signal {b m}

[0045] Step 2. For the parallel signal obtained in step 1 {b m}, each channel signal is processed by pulse shaping, and the parallel signal after pulse shaping processing {b m}; the methods for pulse shaping processing of each signal are:

[0046] Using the pulse shaping function to perform pulse shaping on each bit signal in the signal path one by one, and then superimposing the pulse shaped signals of all bits ...

specific Embodiment approach 2

[0060] Specific embodiment 2. This embodiment is a further description of the method of signal transmission and reception based on the signal compression and extrapolation method described in the specific embodiment 1. The signal extrapolation method described in step 9 is used to obtain discrete sampling The value sequence of the point is extrapolated, and the method of obtaining the extrapolated signal sequence is as follows:

[0061] By formula:

[0062] f m + = Σ l = - M M sin σ ( m - l ) π ( m - l ) g ...

specific Embodiment approach 3

[0081] Specific embodiment three, combine Figure 4 , Figure 5This embodiment is described. This embodiment is a device for implementing a method for transmitting and receiving a signal based on signal compression and extrapolation technology described in Embodiment 1. The device includes a sending unit and a receiving unit, and the transmitting unit includes a sending end Serial-to-parallel converter 1, pulse shaping circuit 2, time window circuit 3, sending-end parallel-serial converter 4, sending filter 5, and sending-end antenna 6;

[0082] The parallel signal output end of the serial-to-parallel converter 1 at the sending end is connected to the parallel signal input end of the pulse shaping circuit 2, the wave signal output end of the pulse shaping circuit 2 is connected to the wave signal input end of the time window circuit 3, and the wave signal input end of the time window circuit 3 The waveform truncated signal output end is connected to the waveform truncated sig...

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Abstract

The invention discloses a signal emitting and receiving method based on signal compression and extrapolation technology and an implementation device of the signal emitting and receiving method based on the signal compression and extrapolation technology, and relates to the field of communication. The signal emitting and receiving method based on the signal compression and extrapolation technology solves the problems that a system is low in slot time use rate and incapable of transmitting more signals in limited time. The method comprises the steps of forming an input sequence in a pulse mode, compressing the input sequence in a wave form mode, conversing the input sequence in a parallel-to-serial mode, filtering the input sequence, sending the input sequence through an antenna, receiving a wave form signal through an antenna by a receiving end, filtering the signal, converting the signal in a parallel-to-serial mode, sampling the signal, processing the signal in an extrapolation mode, and obtaining an input symbol sequence of a sending end. The implementation device comprises a sending unit and a receiving unit. The sending unit enables the signal to be compressed by a sending end parallel-to-serial converter, a pulse forming circuit and a time window circuit and sends the signal to an information channel through an original communication method. The receiving unit enables the received signal to pass a sampling circuit and an extrapolation circuit, obtains an extrapolated signal sequence, and obtains the input symbol sequence of the sending end through a receiving end judging device. The signal emitting and receiving method based on the signal compression and extrapolation technology is applicable to the field of communication.

Description

technical field [0001] The present invention relates to the field of communication. Background technique [0002] LTE (Long Term Evolution) is a new-generation mobile communication standard that is mainstream in the world after the third-generation mobile communication. In September 2009, the LTE R8 standard was functionally frozen, and at the same time, in order to meet the requirements of the ITU for 4G solutions, the LTE-Advanced standardization work officially started. However, both LTE and LTE-Advanced can be divided into two duplex modes: TDD (Time Division Duplex) and FDD (Frequency Division Duplex) according to different duplex modes for sending signals. Among them, the FDD duplex mode can be further divided into full-duplex FDD (Full-Duplex FDD) and half-duplex FDD (HD-FDD, Half-Duplex FDD). figure 1 Shown is LTE-Advanced frame structure type 1, applicable to FDD mode of full-duplex and half-duplex. For FDD, its uplink and downlink transmission signals are in dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03
Inventor 沙学军姜来为刘晓萍吴宣利吴玮
Owner HARBIN INST OF TECH
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