WO2023207180A1

WO2023207180A1 - Data signal transmission method and apparatus, storage medium, and electronic device

Info

Publication number: WO2023207180A1
Application number: PCT/CN2022/142243
Authority: WO
Inventors: 刘兴伟; 刘通; 钱文婷; 梁梓康; 朱和鹏
Original assignee: 中国电信股份有限公司
Priority date: 2022-04-24
Filing date: 2022-12-27
Publication date: 2023-11-02
Also published as: CN114786250A; CN114786250B

Abstract

The present disclosure provides a data signal transmission method and apparatus, a storage medium and an electronic device, which relate to the technical field of 5G communications. The method comprises: converting a first original data signal of a first signal type by means of a frequency shift local unit to obtain a first target data signal of a target frequency band; framing the frequency synchronization signal of the first original data signal by means of the frequency shift local unit to obtain a synchronization and communication signal between the frequency shift local unit and a frequency shift remote unit, and combining the synchronization and communication signal and the first target data signal to obtain a first output signal; and restoring the first target data signal by means of the frequency shift remote unit and according to the synchronization and communication signal between the frequency shift local unit and the frequency shift remote unit, so as to obtain a first original data signal. The present disclosure reduces interference caused by the synchronous transmission of frequency points and frequencies in data signal transmission.

Description

Data signal transmission methods and devices, storage media, electronic equipment

Cross-references to related applications

This application takes priority as the application document with the application number: 202210434084.4, the filing date: April 24, 2022, and the invention title: data signal transmission method and device, storage medium, and electronic equipment. All the Chinese patent applications The contents are incorporated herein by reference in their entirety.

Technical field

Embodiments of the present disclosure relate to the field of 5G communication technology, and specifically, to a data signal transmission method, a data signal transmission device, a computer-readable storage medium, and an electronic device.

Background technique

At present, there are a large number of buildings with 4G passive room distribution. The passive components (combiners, power dividers, couplers, antennas) can only support 700~2700MHz, and cannot effectively support the frequency range between 3.3GHz~3.6GHz. frequency band.

In order to solve the above problem, the frequency-shifting system can be used to down-convert the signal in the frequency band between 3.3GHz and 3.6GHz through the near-end, and then the frequency and time synchronization of the down-frequency signal can be performed at the far-end. Then, the down-converted signal is restored to a signal in the frequency band between 3.3GHz and 3.6GHz.

However, the above method has the following problems: on the one hand, the synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine of the traditional frequency-shifting system are implemented in a separated manner. In the process of data restoration, Multiple frequencies need to be occupied, which makes the selection of frequency points more complicated. On the other hand, frequency synchronization adopts the transmission of local oscillators or synchronization through 4G/5G frequency-shifted communication signals on feeders. Passive room transmission does not support low-frequency clocks. The frequency band and local oscillator frequency point fall in the mobile communication frequency band and cannot be transmitted in passive indoor sub-transmissions, and the cost of using 4G/5G network signals to extract frequency synchronization is too high.

It should be noted that the information disclosed in the above background section is only used to enhance understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to those of ordinary skill in the art.

Contents of the invention

The purpose of the present disclosure is to provide a data signal transmission method, a data signal transmission device, a computer-readable storage medium and an electronic device, thereby overcoming, at least to a certain extent, frequency synchronization and time synchronization caused by limitations and defects of related technologies. Synchronization is implemented in a separate manner, which results in a slower transmission rate of data signals.

According to one aspect of the present disclosure, a data signal transmission method is provided, including:

The first original data signal with the first signal type is converted by the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

The frequency-shifting near-end machine frames the frequency synchronization signal of the first original data signal to obtain synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine;

Combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency-shifted remote machine through a passive room branch;

The frequency shifting remote machine restores the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal to obtain a first original data signal.

In an exemplary embodiment of the present disclosure, converting the first original data signal with the first signal category to obtain the first target data signal with the target frequency band includes:

The first original data signal with the first signal type is converted from the original frequency band into the first target data signal with the target frequency band through the first frequency converter included in the frequency shifting near-end machine; wherein, wherein, the The original frequency band is the frequency band before frequency conversion, and the target frequency band is the frequency band after frequency conversion.

In an exemplary embodiment of the present disclosure, the frequency synchronization signal of the first original data signal is framed to obtain synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine, include:

Through the first digital signal processing chip included in the first synchronous communication module of the frequency-shifted near-end machine, the phase information of the first clock unit included in the first synchronous communication module is extracted to obtain the frequency synchronization signal;

The frequency synchronization signal is placed in the middle position of the TDD downlink time slot through the first micro-control unit included in the first synchronization communication module to obtain the synchronization and communication signals.

In an exemplary embodiment of the present disclosure, the first micro control unit included in the first synchronization communication module places the frequency synchronization signal to the middle position of the TDD downlink time slot to obtain the synchronization and communication Signals, including:

The original time signal of the first original data signal is obtained through the first signal Modem synchronization module of the frequency-shifted near-end machine, and through the first digital signal processing chip, the first synchronous communication module includes The first current time signal of the first clock unit and the original time signal are processed to obtain a time synchronization signal of the first original data signal;

The time synchronization signal is placed at the start position and end position of the downlink time slot through the first micro-control unit included in the first synchronous communication module, and the frequency synchronization signal and the frequency-shifted near-end machine are connected to the frequency-shifted The communication polling broadcast information between remote machines is placed in the middle position of the current downlink time slot to obtain the synchronization and communication signals.

In an exemplary embodiment of the present disclosure, the synchronization and communication signals are in the TDD working mode; when the working mode of the first target data signal is also the TDD working mode, the synchronization and communication signals and the first target data signal are The uplink and downlink time slot time widths are the same;

When the operating mode of the first target data signal is the FDD operating mode, the uplink and downlink time slot time widths of the time synchronization signal and frequency synchronization signal are custom time widths;

The digital signal with a preset time width is a modulated digital signal or a spread spectrum modulated signal.

In an exemplary embodiment of the present disclosure, after obtaining the synchronization and communication signals, the data signal transmission method includes:

The first narrowband radio frequency modulation chip performs signal modulation on the synchronization and communication signals to obtain a narrowband radio frequency modulation signal corresponding to the synchronization and communication signals; wherein the narrowband radio frequency modulation signal includes an FSK signal.

In an exemplary embodiment of the present disclosure, the first target data signal included in the first output signal is processed by the frequency shifting remote machine according to the synchronization and communication signals included in the first output signal. Restore and obtain the first original data signal, including:

The synchronization and communication signals included in the first output signal are analyzed and phase synchronized through the second digital signal processing chip in the second synchronous communication module included in the frequency-shifted remote machine to obtain a frequency synchronization signal;

Calibrate the second clock unit in the second synchronous communication module according to the frequency synchronization signal through the second frequency converter included in the second synchronous communication module;

The frequency converter performs frequency conversion processing on the first target data signal according to the calibrated second clock unit to obtain the first original data signal.

In an exemplary embodiment of the present disclosure, the data signal transmission method further includes:

The polling and broadcast information of the near-remote communication between the frequency-shifted near-end machine and the frequency-shifted remote machine is obtained from the analyzed synchronization and communication signals through the second micro-control unit included in the second synchronous communication module, And respond in the uplink time slot.

According to one aspect of the present disclosure, a data signal transmission device is provided, including:

The data signal conversion module is used to convert the first original data signal with the first signal type through the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

A signal framing module, configured to frame the frequency synchronization signal of the first original data signal through a frequency-shifting near-end machine to obtain synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine ;

The signal combining module is used to combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency shift remote machine through a passive room branch. ;

A data signal restoration module configured to restore the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal through the frequency-shifting remote machine to obtain the first raw data signal.

According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for transmitting a data signal according to any one of the above is implemented.

According to an aspect of the present disclosure, an electronic device is provided, including:

processor; and

memory for storing executable instructions for the processor;

Wherein, the processor is configured to execute any one of the above data signal transmission methods by executing the executable instructions.

An embodiment of the present disclosure provides a method for transmitting data signals. On the one hand, a first original data signal whose signal type is a 5G signal in the data signal to be transmitted can be converted by a near-end machine through frequency shifting to obtain a first target data signal. and framing the frequency synchronization signal of the first original data signal to obtain the synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine, and combine the synchronization and communication signals with the first target data signal , obtain the first output signal, and then transmit the first output signal to the frequency-shifting remote machine through the passive room branch, and restore the first target data signal according to the synchronization and communication signals through the frequency-shifting remote machine, and obtain the first target data signal. An original data signal realizes the synchronous restoration of the first target data signal according to the frequency synchronization signal, thereby solving the problem of synchronization and frequency shift between the frequency-shifting near-end machine and the frequency-shifting remote machine of the traditional frequency-shifting system in the prior art. Communication signals are all implemented in a separated manner. In the process of data restoration, multiple frequencies need to be occupied, which makes the selection of frequency points more complicated. On the other hand, since the frequency synchronization signal of the first original data signal can be Frame is formed to obtain the synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine, and then the first output signal is transmitted to the frequency-shifting remote machine through the passive room branch, and finally based on the synchronization and communication signals The frequency synchronization signal included in the method restores the first target data signal, thus solving the problem of passive room transmission in the existing technology due to frequency synchronization using transmission local oscillator or synchronization through 4G/5G frequency shift communication signals on the feeder. It does not support the low-frequency clock band, the local oscillator frequency falls in the mobile communication band and cannot be transmitted in passive rooms, and the cost of using 4G/5G network signals to extract frequency synchronization is too high.

It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and do not limit the present disclosure.

Description of the drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

FIG. 1 schematically shows a flow chart of a data signal transmission method according to an example embodiment of the present disclosure.

FIG. 2 schematically shows an example structural diagram of a frequency shifting room subsystem according to an exemplary embodiment of the present disclosure.

FIG. 3 schematically shows an example structural diagram of a frequency-shifting near-end machine according to an exemplary embodiment of the present disclosure.

FIG. 4 schematically shows an example structural diagram of a frequency-shifting remote machine according to an exemplary embodiment of the present disclosure.

FIG. 5 schematically shows an example structural diagram of synchronization and communication signals between a frequency-shifting near-end machine and a frequency-shifting remote machine according to an exemplary embodiment of the present disclosure.

FIG. 6 schematically illustrates a method of using the frequency shifting remote machine to transmit a first target included in the first output signal according to the synchronization and communication signals included in the first output signal according to an exemplary embodiment of the present disclosure. The flow chart of the method for restoring the data signal to obtain the first original data signal.

FIG. 7 schematically shows a block diagram of a data signal transmission device according to an exemplary embodiment of the present disclosure.

FIG. 8 schematically illustrates an electronic device for implementing the above-mentioned transmission method of data signals according to an example embodiment of the present disclosure.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments. To those skilled in the art. The described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details described, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the disclosure.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and/or processor devices and/or microcontroller devices.

This example implementation first provides a data signal transmission method, which can be run on the communication server, server cluster or cloud server where the frequency shift system is located; of course, those skilled in the art can also run it on other platforms according to needs The method of the present disclosure is not particularly limited in this exemplary embodiment. Referring to Figure 1, the data signal transmission method may include the following steps:

Step S110. Convert the first original data signal with the first signal type through the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

Step S120. Frame the frequency synchronization signal of the first original data signal through the frequency-shifting near-end machine to obtain the synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine;

Step S130. Combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency shift remote machine through a passive room branch;

Step S140. The frequency-shifting remote machine restores the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal to obtain a first original data signal.

In the above-mentioned data signal transmission method, on the one hand, the first original data signal whose signal type is the 5G signal in the data signal to be transmitted can be converted by the frequency shifting near-end machine to obtain the first target data signal, and the first original data signal can be converted to the first original data signal. The frequency synchronization signal of the data signal is framed to obtain synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine, and the synchronization and communication signals and the first target data signal are combined to obtain the first output signal, and then transmits the first output signal to the frequency-shifting remote machine through the passive room branch, and restores the first target data signal according to the synchronization and communication signals through the frequency-shifting remote machine to obtain the first original data signal. It realizes the synchronous restoration of the first target data signal according to the frequency synchronization signal, thereby solving the problem in the existing technology that the synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine of the traditional frequency-shifting system are separated. In this way, in the process of data restoration, multiple frequencies need to be occupied, which makes the selection of frequency points more complicated. On the other hand, since the frequency synchronization signal of the first original data signal can be framed, the shift is obtained. The synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine are then transmitted to the frequency-shifting remote machine through the passive room branch. Finally, the synchronization is performed based on the frequency included in the synchronization and communication signals. The signal restores the first target data signal, thus solving the problem in the existing technology that passive room branch transmission does not support the low-frequency clock band due to frequency synchronization using transmission local oscillators or 4G/5G frequency shift communication signals on feeders. , the local oscillator frequency falls in the mobile communication frequency band and cannot be transmitted in passive room divisions, and the cost of using 4G/5G network signals to extract frequency synchronization is too high.

Below, the data signal transmission method according to the exemplary embodiments of the present disclosure will be explained and described in detail with reference to the accompanying drawings.

First, the terms involved in the exemplary embodiments of the present disclosure are explained.

Time Division Duplex (TDD: TimeDivision Duplex) is a communication method. The specific implementation process is: the uplink and downlink use exactly the same spectrum. Although it is equivalent to only one lane, it allows the uplink and downlink data to use this lane at different times. Channel, send data upstream for a while, and then send data downstream again, in turn. Since each uplink and downlink signal transmission takes up a very short time, users cannot perceive the discontinuity of data during the specific application process, that is, time division duplex is achieved.

At the same time, the signal is transmitted continuously through multiple wireless frames. The length of each wireless frame is 10ms, that is, each wireless frame can include 10 subframes of 1 millisecond; Among them, each subframe contains different number of time slots according to different parameter sets. The wider the subcarrier width, the more the number of time slots (see Figure 2 for details), but the length of the subframe remains unchanged at 1 millisecond. of. Moreover, each time slot contains 14 symbols regardless of the length of time, which is the minimum time unit for 5G wireless resource allocation; in a time slot, three different types of symbols can be included: downlink symbols (D), uplink symbols (U) and the flexible symbol (F). Flexible symbols can be used as both uplinks and downlinks.

Among them, TDD frame format = several downlink time slots + 1 flexible time slot + several uplink time slots; there can be multiple downlink time slots, and all 14 symbols in each time slot are configured for downlink; when uplink There can also be multiple slots, and all 14 symbols in each time slot are configured as uplink; there is only one flexible time slot, and the ratio of downlink symbols, flexible symbols and uplink symbols can be flexibly set. In the specific application process, it can be based on the uplink data and The time required for downlink data can be flexibly adjusted.

Secondly, the application scenarios and the purpose of the invention of the exemplary embodiments of the present disclosure are explained and described. Specifically, the data signal transmission method described in the exemplary embodiments of the present disclosure is based on radio frequency modulation signals and time division frame formats. Only one narrowband radio frequency modulation signal can realize simultaneous transmission frequency synchronization, TDD switching time synchronization and frequency shifting systems. Communication signals between near and remote machines. This implementation method can solve the problem of limited frequency point selection when using transmission local oscillator or clock for frequency synchronization, and the narrow-band radio frequency modulation signal can use FSK (Frequency-shift keying, frequency shift keying), which can use digital signals to modulate the carrier wave. Frequency) and other low-rate modulation methods, low cost.

Further, the frequency shifting room subsystem recorded in the exemplary embodiments of the present disclosure will be explained and described. Specifically, as shown in Figure 2, the frequency-shifting room subsystem may include a frequency-shifting near-end unit 210, a passive room unit 220 and a frequency-shifting remote unit 230; wherein, the frequency-shifting near-end unit, the passive room unit and The frequency-shifted remote machines communicate and connect in sequence. The frequency-shifting room distribution system recorded in this disclosure can achieve 3.5GHz 5G MIMO radio frequency signal transmission coverage without modifying the existing passive room distribution system. The near-end machine of the frequency shifting system first shifts the frequency of the 5G radio frequency signal to an intermediate frequency of 1~1.6GHz, then uses the existing passive room division to transmit it to the antenna head end, and finally the frequency shifting remote antenna restores the 3.5GHz radio frequency signal. Moreover, the frequency-shifting room subsystem uses old passive room subsystems to convert 5G radio frequency signals into intermediate frequency signals supported by passive room subsystems for transmission, and then restores the intermediate frequency signals to radio frequency signals on the antenna coverage side. The frequency shift system includes a near-end machine and a remote machine. The frequency shift system supports the 5G TDD standard.

Referring to Figure 3, the frequency shifting near-end machine may include a first coupler 301, a first switch 302, a first frequency converter 303, a first amplifier 304, a second switch 305, and a first signal Modem synchronization module 306 , the first synchronous communication module 307, the first combiner 308; further, the first synchronous communication module may include a first digital signal processing chip (such as FPGA or CPLD) 309, a first micro control unit (MCU) 310, The first narrowband radio frequency modulation chip 311 and the first clock unit 312; among them, the first signal Modem module can be a 5G Modem synchronization module. Of course, in the future 5G+ and/or 6G era, it can also be other Modem modules. This example is suitable for This is not subject to special restrictions; further, the specific roles played by each functional module included in the frequency-shifted near-end machine and the first synchronous communication module in the data signal transmission process will be listed one by one later and will not be discussed here. Again.

Referring to Figure 4, the frequency shift remote machine may include a second coupler 401, a second combiner 402, a second synchronous communication module 403, a third switch 404, a second frequency converter 405, a second amplifier 406 and a third Four switches 407, the second synchronous communication module may include a second digital signal processing chip (such as FPGA or CPLD) 408, a second micro control unit (MCU) 409, a second narrowband radio frequency modulation chip 410, and a second clock unit 411; Among them, the specific roles played by each functional module included in the frequency shift remote machine and the second synchronous communication module in the data signal transmission process will be listed one by one below, and will not be described again here.

Hereinafter, the transmission method of the data signal shown in FIG. 1 will be explained and described in detail with reference to FIGS. 2 to 4 .

In step S110, the first original data signal with the first signal type is converted by the frequency shifting near-end machine to obtain the first target data signal with the target frequency band.

In this example embodiment, first, the data signal to be transmitted sent by the data sending end is received based on the frequency shifting system; where the data sending end is the base station; the frequency shifting near-end machine and the frequency shifting remote machine are defined relative to the base station , the one closer to the base station (further from the mobile terminal) is the frequency-shifted near-end machine, and the one farther from the base station (closer to the mobile terminal) is the frequency-shifted remote machine; that is, the data signal to be transmitted is the downlink data signal; secondly, after receiving the data signal to be transmitted, the first original data signal with the first signal type in the data signal to be transmitted can be converted by the frequency shift near-end machine to obtain the first original data signal with the target frequency band. target data signal. Specifically, this can be achieved in the following manner: first, separate the data to be transmitted through a first coupler included in the frequency-shifted near-end machine to obtain a first original data signal with a first signal type and/or Second original data with a second signal type; secondly, the first original data signal with the first signal type in the data signal to be transmitted is converted from the original frequency band through the first frequency converter included in the frequency shift near-end machine. Convert to a first target data signal with a target frequency band; wherein, the original frequency band is the frequency band before frequency conversion, the target frequency band is the frequency band after frequency conversion, and the frequency band before frequency conversion is a high frequency band between 3.3GHz and 3.6GHz. Frequency band, the frequency band after frequency conversion is the mid-frequency band between 1GHz and 1.6GHz. What needs to be supplemented here is that the above-mentioned first original data signal with the first signal category is a 5G data signal, and may also be 5G+, 6G and other signals in the future. This example does not impose special restrictions on this; the above-mentioned first signal category with the second signal category The second original data can be a 2G signal and/or a 3G signal and/or a 4G signal. For the 2G signal and/or a 3G signal and/or a 4G signal, there is no need to down-convert, and it can be directly converted into It is transmitted to the frequency-shifted remote machine for radiation of data signals.

In the specific application process, the high-frequency 5G radio frequency data signal between 3.3GHz and 3.6GHz can be frequency-shifted to the target frequency band (mid-frequency band) between 1GHz and 1.6GHz through the frequency shifting near-end machine. Then, the first original data signal with the first signal type is converted from the original frequency band to the first target data signal with the target frequency band; wherein, the 5G radio frequency data signal is a MIMO (multiple-in multipleout) signal; in the frequency conversion process In the process, first, during the downlinking process of the data signal, the first frequency converter and the first amplifier are controlled to be in the on state through the first frequency converter, and then the first original data is frequency converted through the first frequency converter, and the first original data is processed through the first amplifier. The first original data signal after frequency conversion is amplified to obtain the first target data signal; the second switch can be used to control the switches of the first frequency converter and the first amplifier during the uplinking process of the data signal.

In step S120, the frequency synchronization signal of the first original data signal is framed by the frequency-shifting near-end machine to obtain synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine.

In this exemplary embodiment, specifically, the frequency synchronization signal of the first original data signal is framed to obtain the synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine, which can be obtained by It is implemented as follows: first, extract the phase information of the first clock unit included in the first synchronous communication module through the first digital signal processing chip included in the first synchronous communication module of the frequency-shifted near-end machine, and obtain The frequency synchronization signal; secondly, the first micro-control unit included in the first synchronization communication module places the frequency synchronization signal to the middle position of the TDD downlink time slot to obtain the synchronization and communication signals.

Wherein, the frequency synchronization signal is placed in the middle position of the TDD downlink time slot through the first micro-control unit included in the first synchronization communication module, and the synchronization and communication signals are obtained, which can be achieved in the following ways: First, Through the first signal Modem synchronization module of the frequency-shifted near-end machine (in the 5G scenario, it can be a 5G Modem synchronization module, for example. Of course, in the future 5G+ and/or 6G era, it can also be other Modem modules). The original time signal of the first original data signal, and through the first digital signal processing chip, the first current time signal of the first clock unit included in the first synchronous communication module and the original time The signal is processed to obtain the time synchronization signal of the first original data signal; secondly, the time synchronization signal is placed to the starting position of the downlink time slot through the first micro control unit included in the first synchronous communication module and end position, and place the frequency synchronization signal and the communication polling broadcast information between the frequency-shifted near-end machine and the frequency-shifted remote machine to the middle position of the current downlink time slot to obtain the synchronization and communication signals. Wherein, the synchronization and communication signals are in the TDD working mode; when the working mode of the first target data signal is also the TDD working mode, the uplink and downlink time slot time widths of the synchronization and communication signals and the first target data signal are the same; when When the working mode of the first target data signal is the FDD working mode, the time width of the uplink and downlink time slots of the time synchronization signal and the frequency synchronization signal is a custom time width; the digital signal with a preset time width is modulated Digital signal or spread spectrum modulation signal; wherein, the obtained synchronization and communication signals between the frequency-shifted near-end machine and the frequency-shifted remote machine can be specifically shown in FIG. 5 .

What needs to be added here is that in order to reduce the difficulty of synchronization analysis of frequency-shifted remote machines, when the working mode of the first target data signal is the TDD working mode, the time synchronization signal and the frequency synchronization signal use fixed time width digital signals, such as automatic The defined unmodulated digital signal or spread spectrum modulated signal, that is, the width of the uplink and downlink time synchronization signals can be the same as the first target data signal; of course, the width between the frequency-shifted near-end machine and the frequency-shifted remote machine The synchronization and communication signals can also include a communication polling broadcast signal, which can be placed in the middle of the current TDD downlink time slot together with the frequency synchronization signal. The communication polling broadcast signal can be based on a point-to-multipoint communication protocol, or That is, one frequency-shifted remote machine pairs with multiple frequency-shifted near-end machines, or one frequency-shifted near-end machine pairs with multiple frequency-shifted remote machines, etc.

What needs to be further explained here is that after obtaining the synchronization and communication signals, the transmission method of the data signal includes: performing signal modulation on the synchronization and communication signals through a first narrowband radio frequency modulation chip to obtain the synchronization and communication signals. A narrowband radio frequency modulation signal corresponding to the communication signal; wherein the narrowband radio frequency modulation signal includes an FSK signal. That is to say, after the synchronous communication module frames the time synchronization signal, frequency synchronization signal and communication polling broadcast signal to obtain the synchronization and communication signals, it can be signal modulated through the FSK signal modulation module (the first narrowband radio frequency modulation chip) to obtain The narrowband radio frequency modulation signal is then transmitted to the frequency-shifted remote machine through a passive room branch coupler, which corresponds to the synchronization and communication signals. Through this method, the transmission cost can be reduced.

In step S130, the synchronization and communication signals and the first target data signal are combined to obtain a first output signal, and the first output signal is transmitted to the frequency shift remote machine through a passive room branch coupler. .

In this exemplary embodiment, first, the synchronization and communication signals and the first target data signal are combined to obtain a first output signal. Specifically, the synchronization and communication signals and the first target data signal can be combined through the first combiner included in the frequency-shifted near-end machine to obtain the first output signal, and then the passive room branch coupler can be used to combine the synchronization and communication signals and the first target data signal. The first output signal is transmitted to the frequency-shifted remote machine. It should be supplemented here that since the data signal to be transmitted may also include 2G data signal and/or 3G data signal and/or 4G data signal, therefore, the synchronization and communication signals and the first target data signal are processed The process of combining to obtain the first output signal can be achieved in the following manner: using a first combiner to combine the first target data signal, the narrowband radio frequency modulation signal corresponding to the synchronization and communication signal, and the second original The data signals are combined to obtain a first output signal. Wherein, the second original data signal may include a 2G data signal and/or a 3G data signal and/or a 4G data signal.

In step S130, the frequency shifting remote machine restores the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal to obtain the first original data. Signal.

In this example embodiment, first, the first output signal is separated through the second coupler included in the frequency-shifting remote machine to obtain a first target data signal and a signal corresponding to the synchronization and communication signals. Narrowband radio frequency modulation signal and second original data signal, and radiating the second original data to the data receiving end; finally, the frequency-shifting remote machine performs synchronous operation on the first data signal according to the synchronization and communication signals. The target data signal is restored to obtain the first original data signal.

Specifically, with reference to FIG. 6 , by the frequency shifting remote machine restoring the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal, we obtain The first raw data signal includes:

Step S610, use the second digital signal processing chip in the second synchronous communication module included in the frequency-shifting remote machine to analyze and phase synchronize the synchronization and communication signals included in the first output signal to obtain frequency synchronization. Signal;

Step S620: Calibrate the second clock unit in the second synchronous communication module according to the frequency synchronization signal through the second frequency converter included in the second synchronous communication module;

Step S630: The frequency converter performs frequency conversion processing on the first target data signal according to the calibrated second clock unit to obtain the first original data signal.

In the following, steps S610 to S630 will be explained and described. Specifically, the frequency-shifted remote machine converts the received narrow-band radio frequency modulation signal corresponding to the synchronization and communication signal into a digital signal through the second synchronization communication module narrow-band radio frequency modulation chip (such as FSK, etc.), and then the digital signal is processed Chips (such as FPGA, CPLD, etc.) perform signal analysis and phase synchronization; in the specific analysis process, the TDD time synchronization signal can be analyzed first to achieve time synchronization, and then the frequency synchronization digital signal and communication polling broadcast can be extracted at the corresponding frame structure position Digital signal; among them, the frequency synchronized digital signal will also undergo precise phase synchronization processing to adjust the local clock to achieve frequency synchronization of the frequency-shifted near-end machine and the remote machine, and finally obtain the first original data signal, which is the 5G radio frequency data signal; The communication polling digital signal will perform protocol analysis, obtain the corresponding broadcast parameters or polling parameters, and respond in the uplink time slot of the TDD synchronization signal. What needs to be added here is that in the process of signal synchronization, rough synchronization is first implemented based on the time synchronization signal, and then precise phase synchronization is performed based on the frequency synchronization signal to reduce the frequency synchronization hardware requirements of the frequency shift remote machine. It can be based on Low-profile digital signal chips achieve frequency synchronization.

It should be supplemented here that during the time synchronization process, the first target data signal can be time synchronized according to the time synchronization signal through the third and fourth switches included in the second synchronization communication module.

Further, during the response process, the following method can be implemented: using the second micro-control unit included in the second synchronization communication module to obtain the frequency-shifted near-end machine and the frequency-shifted remote-end machine from the parsed synchronization and communication signals. polling and broadcast information for near- and remote-end communication between machines, and respond in the uplink time slot. At this point, all data signal transmission processes have been completed. Moreover, based on the foregoing description, it can be known that the data signal transmission method provided by the exemplary embodiments of the present disclosure can not only perform integrated transmission of time synchronization signals, frequency synchronization signals and communication signals, but also adopt low-cost, low-rate narrowband Radio frequency communication modulation mode is used for transmission; at the same time, it can also be combined with the TDD standard frame structure to divide uplink and downlink time slots for signal transmission. In the downlink time slot, the frequency-shifting near-end machine sends time synchronization, frequency synchronization and communication broadcast polling signals, and in the uplink time slot, the frequency-shifting remote machine sends communication response signals; further, in the process of data restoration, it can also Coarse synchronization is first implemented based on the time synchronization signal, and then precise phase synchronization is performed based on the frequency synchronization signal, which reduces the frequency synchronization hardware requirements of the frequency-shifted remote machine. Frequency synchronization can be achieved based on low-specification digital signal chips.

Example embodiments of the present disclosure also provide a device for transmitting data signals. Referring to FIG. 7 , the data signal transmission device may include a data signal conversion module 710 , a signal framing module 720 , a signal combining module 730 and a data signal restoration module 740 . in:

The data signal conversion module 710 can be used to convert the first original data signal with the first signal type through the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

The signal framing module 720 can be used to frame the frequency synchronization signal of the first original data signal through a frequency-shifting near-end machine to obtain synchronization and synchronization between the frequency-shifting near-end machine and the frequency-shifting remote machine. communication signals;

The signal combining module 730 can be used to combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency-shifting remote through a passive room branch. terminal;

The data signal restoration module 740 may be used to restore the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal through the frequency shift remote machine, to obtain The first raw data signal.

In an exemplary embodiment of the present disclosure, converting the first original data signal with the first signal type to obtain the first target data signal with the target frequency band includes: using the frequency shifting near-end machine to include: The first frequency converter converts the first original data signal with the first signal type from the original frequency band to the first target data signal with the target frequency band; wherein, the original frequency band is the frequency band before frequency conversion, and the target frequency band is the frequency band after frequency conversion.

When the working mode of the first target data signal is the FDD working mode, the time width of the uplink and downlink time slots of the time synchronization signal and frequency synchronization signal is a custom time width.

In an exemplary embodiment of the present disclosure, the data signal transmission device further includes:

The signal modulation module can be used to perform signal modulation on the synchronization and communication signals through the first narrowband radio frequency modulation chip to obtain a narrowband radio frequency modulation signal corresponding to the synchronization and communication signals; wherein the narrowband radio frequency modulation signal includes FSK Signal.

The frequency converter converts the frequency of the first target data signal according to the calibrated second clock unit to obtain the first original data signal.

The response module can be used to obtain the near-remote communication between the frequency-shifted near-end machine and the frequency-shifted remote machine from the analyzed synchronization and communication signals through the second micro-control unit included in the second synchronous communication module. Polling, broadcast information, and respond in the uplink time slot.

The specific details of each module in the above-mentioned data signal transmission device have been described in detail in the corresponding data signal transmission method, so they will not be described again here.

It should be noted that although several modules or units of equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to embodiments of the present disclosure, the features and functions of two or more modules or units described above may be embodied in one module or unit. Conversely, the features and functions of one module or unit described above may be further divided into being embodied by multiple modules or units.

Furthermore, although various steps of the methods of the present disclosure are depicted in the drawings in a specific order, this does not require or imply that the steps must be performed in that specific order, or that all of the illustrated steps must be performed to achieve the desired results. result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.

In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

Those skilled in the art will understand that various aspects of the present disclosure may be implemented as systems, methods, or program products. Therefore, various aspects of the present disclosure may be embodied in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or an implementation combining hardware and software aspects, which may be collectively referred to herein as "Circuits", "modules" or "systems".

An electronic device 800 according to this embodiment of the present disclosure is described below with reference to FIG. 8 . The electronic device 800 shown in FIG. 8 is only an example and should not bring any limitations to the functions and usage scope of the embodiments of the present disclosure.

As shown in Figure 8, electronic device 800 is embodied in the form of a general computing device. The components of the electronic device 800 may include, but are not limited to: the above-mentioned at least one processing unit 810, the above-mentioned at least one storage unit 820, a bus 830 connecting different system components (including the storage unit 820 and the processing unit 810), and the display unit 840.

Wherein, the storage unit stores program code, and the program code can be executed by the processing unit 810, so that the processing unit 810 performs various exemplary methods according to the present disclosure described in the "Example Method" section of this specification. Implementation steps. For example, the processing unit 810 can perform step S110 as shown in Figure 1: convert the first original data signal with the first signal type through the frequency shift near-end machine to obtain the first target data signal with the target frequency band. ; Step S120: Framing the frequency synchronization signal of the first original data signal by the frequency shifting near-end machine to obtain synchronization and communication signals between the frequency shifting near-end machine and the frequency shifting remote machine; Step S130 : Combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency shift remote machine through the passive room branch; Step S140: Through the The frequency-shifted remote machine restores the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal to obtain a first original data signal.

The storage unit 820 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 8201 and/or a cache storage unit 8202, and may further include a read-only storage unit (ROM) 8203.

Storage unit 820 may also include a program/utility 8204 having a set of (at least one) program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, Each of these examples, or some combination, may include the implementation of a network environment.

Bus 830 may be a local area representing one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or using any of a variety of bus structures. bus.

Electronic device 800 may also communicate with one or more external devices 900 (e.g., keyboard, pointing device, Bluetooth device, etc.), may also communicate with one or more devices that enable a user to interact with electronic device 800, and/or with Any device that enables the electronic device 800 to communicate with one or more other computing devices (eg, router, modem, etc.). This communication may occur through input/output (I/O) interface 850. Furthermore, the electronic device 800 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through a network adapter 860. As shown, network adapter 860 communicates with other modules of electronic device 800 via bus 830. It should be understood that, although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 800, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.

Through the above description of the embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software, or can be implemented by software combined with necessary hardware. Therefore, the technical solution according to the embodiment of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to cause a computing device (which may be a personal computer, a server, a terminal device, a network device, etc.) to execute a method according to an embodiment of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the method described above in this specification is stored. In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to cause the The terminal device performs the steps according to various exemplary embodiments of the present disclosure described in the above "Example Method" section of this specification.

The program product for implementing the above method according to an embodiment of the present disclosure may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

The program product may take the form of any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave carrying readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A readable signal medium may also be any readable medium other than a readable storage medium that can send, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any suitable medium, including but not limited to wireless, wireline, optical cable, RF, etc., or any suitable combination of the foregoing.

Program code for performing operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., as well as conventional procedural Programming language—such as "C" or a similar programming language. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server execute on. In situations involving remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device, such as provided by an Internet service. (business comes via Internet connection).

In addition, the above-mentioned drawings are only schematic illustrations of processes included in the methods according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal sequence of these processes. In addition, it is also easy to understand that these processes may be executed synchronously or asynchronously in multiple modules, for example.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common knowledge or customary technical means in the technical field not invented by the disclosure . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

A method of transmitting data signals, including:

Convert the first original data signal with the first signal type through the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

The frequency-shifting near-end machine frames the frequency synchronization signal of the first original data signal to obtain synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine;

Combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency-shifted remote machine through a passive room branch;

The frequency shifting remote machine restores the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal to obtain a first original data signal.
The method of transmitting data signals according to claim 1, wherein converting the first original data signal with the first signal type to obtain the first target data signal with the target frequency band includes:

The first original data signal with the first signal type is converted from the original frequency band into the first target data signal with the target frequency band through the first frequency converter included in the frequency shifting near-end machine; wherein, the original frequency band is the frequency band before frequency conversion, and the target frequency band is the frequency band after frequency conversion.
The data signal transmission method according to claim 2, wherein the frequency synchronization signal of the first original data signal is framed to obtain synchronization and synchronization between the frequency-shifted near-end machine and the frequency-shifted remote machine. Communication signals, including:

Through the first digital signal processing chip included in the first synchronous communication module of the frequency-shifted near-end machine, the phase information of the first clock unit included in the first synchronous communication module is extracted to obtain the frequency synchronization signal;

The frequency synchronization signal is placed in the middle position of the TDD downlink time slot through the first micro-control unit included in the first synchronization communication module to obtain the synchronization and communication signals.
The data signal transmission method according to claim 3, wherein the frequency synchronization signal is placed in the middle position of the TDD downlink time slot through the first micro-control unit included in the first synchronous communication module to obtain the Synchronization and communication signals, including:

The original time signal of the first original data signal is obtained through the first signal Modem synchronization module of the frequency-shifted near-end machine, and through the first digital signal processing chip, the first synchronous communication module includes The first current time signal of the first clock unit and the original time signal are processed to obtain a time synchronization signal of the first original data signal;

The time synchronization signal is placed at the start position and end position of the downlink time slot through the first micro-control unit included in the first synchronous communication module, and the frequency synchronization signal and the frequency-shifted near-end machine are connected to the frequency-shifted The communication polling broadcast information between remote machines is placed in the middle position of the current downlink time slot to obtain the synchronization and communication signals.
The data signal transmission method according to claim 3, wherein the synchronization and communication signals are in a TDD working mode; when the working mode of the first target data signal is also a TDD working mode, the synchronization and communication signals and the first target data signal are in the TDD working mode. The uplink and downlink time slot time widths of the target data signals are the same;

When the working mode of the first target data signal is the FDD working mode, the time width of the uplink and downlink time slots of the time synchronization signal and frequency synchronization signal is a custom time width.
The data signal transmission method according to claim 5, wherein after obtaining the synchronization and communication signals, the data signal transmission method includes:

The first narrowband radio frequency modulation chip performs signal modulation on the synchronization and communication signals to obtain a narrowband radio frequency modulation signal corresponding to the synchronization and communication signals; wherein the narrowband radio frequency modulation signal includes an FSK signal.
The method of transmitting data signals according to claim 6, wherein the frequency shifting remote machine transmits the first target signal included in the first output signal according to the synchronization and communication signals included in the first output signal. The data signal is restored to obtain the first original data signal, including:

The synchronization and communication signals included in the first output signal are analyzed and phase synchronized through the second digital signal processing chip in the second synchronous communication module included in the frequency-shifted remote machine to obtain a frequency synchronization signal;

Calibrate the second clock unit in the second synchronous communication module according to the frequency synchronization signal through the second frequency converter included in the second synchronous communication module;

The frequency converter performs frequency conversion processing on the first target data signal according to the calibrated second clock unit to obtain the first original data signal.
The data signal transmission method according to claim 7, wherein the data signal transmission method further includes:

The polling and broadcast information of the near-remote communication between the frequency-shifted near-end machine and the frequency-shifted remote machine is obtained from the analyzed synchronization and communication signals through the second micro-control unit included in the second synchronous communication module, And respond in the uplink time slot.
A data signal transmission device, including:

The data signal conversion module is used to convert the first original data signal with the first signal type through the frequency shifting near-end machine to obtain the first target data signal with the target frequency band;

A signal framing module, configured to frame the frequency synchronization signal of the first original data signal through a frequency-shifting near-end machine to obtain synchronization and communication signals between the frequency-shifting near-end machine and the frequency-shifting remote machine ;

The signal combining module is used to combine the synchronization and communication signals and the first target data signal to obtain a first output signal, and transmit the first output signal to the frequency shift remote machine through a passive room branch. ;

A data signal restoration module configured to restore the first target data signal included in the first output signal according to the synchronization and communication signals included in the first output signal through the frequency-shifting remote machine to obtain the first raw data signal.
A computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the data signal transmission method according to any one of claims 1-8 is implemented.
An electronic device including:

processor; and

memory for storing executable instructions for the processor;

Wherein, the processor is configured to execute the data signal transmission method according to any one of claims 1-8 by executing the executable instructions.