CN115940969A - 5G communication method and communication equipment - Google Patents
5G communication method and communication equipment Download PDFInfo
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Abstract
The embodiment of the application discloses a 5G communication method and communication equipment, which relate to the technical field of wireless communication and comprise the following steps: the broadband radio frequency receiver receives the target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the FPGA module receives radio frequency signal data; analyzing the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal; analyzing the SSB signal to obtain channel parameter information carried in the SSB signal; and adjusting the working parameters of the variable frequency power amplifier module according to the channel parameter information. The broadband radio frequency receiver receives the signals transmitted by the auxiliary channel and from the base station, continuously scans in a target frequency band, analyzes the frequency spectrum obtained by scanning, finds out the synchronous signal block, and can know the channel parameter information carried on the synchronous signal block after analyzing the synchronous signal block, thereby realizing the channel estimation independent of the 5G communication module, adjusting the working parameters of the variable frequency power amplifier module and realizing the self-adaptive analytic 5G communication.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a 5G communication method and a communication device.
Background
Compared with the fourth generation mobile communication technology and the previous mobile communication technology, the fifth generation mobile communication technology (5G) provides a more flexible configuration mode and a higher communication rate, and in recent years, the 5G technology is widely popularized in the public communication field, and is increasingly applied to industrial application.
Because spectrum resource allocation in industrial application is different from public communication networks, parameters change along with application scenes, namely, the number of used frequency bands is large, the existing 5G communication module cannot be used for accessing direct communication, and independent customization of the 5G communication module for different frequency bands is difficult to perform due to the influence of factors such as cost and technology, so that 5G communication is difficult to realize in different use scenes.
Disclosure of Invention
The application mainly aims to provide a 5G communication method and communication equipment, and aims to solve the problem that 5G communication is difficult to realize in different use scenes in the prior art.
In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:
in a first aspect, an embodiment of the present application provides a 5G communication method, which is applied to a multi-channel link, where the multi-channel link includes a main channel and at least one auxiliary channel, and the method includes the following steps:
the broadband radio frequency receiver receives a target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by converting an original signal sent by a base station into a working frequency band;
the FPGA module receives radio frequency signal data;
the FPGA module analyzes the frequency spectrum of the radio-frequency signal in the radio-frequency signal data to obtain an SSB signal;
the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal;
the FPGA module adjusts working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
In a possible implementation manner of the first aspect, the analyzing, by the FPGA module, a spectrum of the radio frequency signal in the radio frequency signal data to obtain the SSB signal includes:
the FPGA module analyzes the frequency spectrum of the radio-frequency signal in the radio-frequency signal data and obtains a suspected signal in a target frequency band; wherein the suspected signal is a signal similar to the characteristics of the 5GNR signal;
judging whether the suspected signal is an OFDM signal, if so, executing to judge whether a 5GNR signal is loaded on the OFDM signal;
and if the judgment result of judging whether the OFDM signal is loaded with the 5GNR signal is yes, executing the steps of identifying the subcarrier interval of the OFDM signal and recovering from the OFDM signal to obtain the SSB signal.
In a possible implementation manner of the first aspect, if the determination result of determining whether the suspected signal is the OFDM signal is negative, the step of returning to the FPGA module to analyze the frequency spectrum of the radio frequency signal in the radio frequency signal data and obtain the suspected signal in the target frequency band is performed until the determination result is yes.
In a possible implementation manner of the first aspect, after the FPGA module analyzes the SSB signal and obtains channel parameter information carried in the SSB signal, the 5G communication method further includes:
judging whether the channel parameter information is valid, if the judgment result is invalid, returning to the step that the FPGA module analyzes the frequency spectrum of the radio-frequency signal in the radio-frequency signal data and obtains a suspected signal in a target frequency band, and obtaining the target channel parameter information until the judgment result is valid;
according to the channel parameter information, the working parameters of the frequency conversion power amplifier module are adjusted, and the communication between the base station and the 5G communication module is realized, which comprises the following steps:
and adjusting the working parameters of the variable frequency power amplifier module according to the target channel parameter information to realize the communication between the base station and the 5G communication module.
In a possible implementation manner of the first aspect, the adjusting, by the FPGA module, the working parameter of the variable frequency power amplifier module according to the channel parameter information to implement communication between the base station and the 5G communication module includes:
the FPGA module adjusts frequency conversion parameters of signals transmitted and received by the frequency conversion power amplification module in a link according to the channel parameter information, so that the frequency band of the signals transmitted to the base station by the frequency conversion power amplification module can be matched with the working frequency band, and the signals transmitted to the 5G communication module by the frequency conversion power amplification module can be matched with the frequency band of the original signals, thereby realizing the communication between the base station and the 5G communication module.
In a possible implementation manner of the first aspect, the FPGA module controls, according to the channel parameter information, a frequency conversion parameter of the frequency conversion power amplifier module for receiving and transmitting a signal in a link, and after the communication between the base station and the 5G communication module is implemented, the 5G communication method further includes:
detecting the actual gain of the 5G communication module in the connected link;
and adjusting the working parameters of the 5G communication module according to the difference between the expected gain and the actual gain.
In a possible implementation manner of the first aspect, before detecting an actual gain of the 5G communication module in the connected link, the 5G communication method further includes:
and judging whether the 5G communication module is successfully accessed into the link, if not, returning to the step of analyzing the frequency spectrum of the radio-frequency signal in the radio-frequency signal data by the FPGA module to obtain an SSB signal until the judgment result is yes.
In a possible implementation manner of the first aspect, before the broadband radio frequency receiver receives the target signal on the disconnected secondary channel and scans the target frequency band to obtain the radio frequency signal data, the 5G communication method further includes:
and switching the radio frequency switch of the variable frequency power amplifier module to the broadband radio frequency receiver so as to connect the variable frequency power amplifier module with the broadband radio frequency receiver and disconnect the variable frequency power amplifier module from the 5G communication module.
In a second aspect, an embodiment of the present application provides a 5G communication device, which is applied to a multi-channel link, where the multi-channel link includes a primary channel and at least one secondary channel, and includes:
the broadband radio frequency receiver is used for receiving a target signal on the disconnected auxiliary channel and scanning in a target frequency band to obtain radio frequency signal data; the target signal is obtained by converting an original signal sent by a base station into a working frequency band;
the FPGA module is used for receiving radio frequency signal data;
the FPGA module includes:
the analysis unit is used for analyzing the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal;
the analysis unit is used for analyzing the SSB signal to obtain channel parameter information carried in the SSB signal;
the control unit is used for adjusting working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
In one possible implementation manner of the second aspect, the communication device further includes a power divider, where the power divider is configured to connect the wideband radio frequency receiver and the secondary channel, so that a part of the signal on the secondary channel is sent to the wideband radio frequency receiver as the target signal.
Compared with the prior art, the beneficial effects of this application are:
the 5G communication method and the communication device provided by the embodiment of the application comprise the following steps: the broadband radio frequency receiver receives a target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by converting an original signal sent by a base station into a working frequency band; the FPGA module receives radio frequency signal data; the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal; the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal; the FPGA module adjusts working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and sends the frequency conversion parameters of the signals in the link. According to the method, on a disconnected link, a broadband radio frequency receiver receives a signal which is transmitted from a base station and is transmitted from an auxiliary channel, the signal is continuously scanned in a target frequency band, an FPGA can analyze a frequency spectrum obtained by scanning, a synchronous signal block is found out, channel parameter information carried on the synchronous signal block can be known after the synchronous signal block is analyzed, channel estimation independent of a 5G communication module is achieved, working parameters of a frequency conversion power amplification module are adjusted according to an analyzed SSB signal, synchronization of the signal and the base station is achieved, namely after the link is connected, the frequency conversion power amplification module transmits the frequency conversion of the signal transmitted by the base station to the 5G communication module and the frequency conversion of the signal transmitted by the 5G communication module to the base station, and therefore bidirectional communication under the 5G condition can be achieved through self-adaptive analysis aiming at different scenes.
Drawings
Fig. 1 is a schematic flowchart of a 5G communication method according to an embodiment of the present application;
fig. 2 is a schematic functional module diagram of a communication device according to an embodiment of the present application;
fig. 3 is a system framework diagram of a communication device provided in an embodiment of the present application in an implementation manner;
fig. 4 is a logic diagram of a 5G communication method provided in an embodiment of the present application in one implementation;
the labels in the figure are: 101-processor, 102-communication bus, 103-network interface, 104-user interface, 105-memory.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The main solution of the embodiment of the application is as follows: A5G communication method and a communication device are provided, which comprise: the broadband radio frequency receiver receives a target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by converting an original signal sent by a base station into a working frequency band; the FPGA module receives radio frequency signal data; the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal; the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal; the FPGA module adjusts working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
Spectrum resource allocation in industrial application is different from public communication networks, and parameters such as frequency band, bandwidth and time slot allocation change along with specific application scenes, so that direct communication cannot be accessed by using common terminals on the market. Compared with LTE, the allocation of the 5G NR frequency spectrum is more flexible, the channel estimation algorithm is more agile, and the correct frequency spectrum movement is difficult to realize through direct frequency conversion; finished product 5G communication module and communication base station's software and hardware system has certain closure, realizes that customization frequency channel inserts with high costs, cycle length through customization corresponding software and hardware, and different frequency channels need develop different hardware schemes alone, and the neck is blocked in the core technology moreover, and sensitive frequency channel still can have artificial restriction, and the producer also can not provide the customization service. With the recent widespread popularization of the 5G technology in the public communication field, the application of the 5G technology in industrial application is increasing, and the above problems result in that the 5G communication is difficult to realize in different use scenes.
Therefore, the application provides a solution, the FPGA module is used to analyze and identify the SSB signal on the signal spectrum detected by the broadband radio frequency receiver, and demodulate the SSB signal to obtain channel parameter information, so as to obtain the frequency band of the target signal before frequency conversion, that is, the original signal of the base station, so that the FPGA module can be used to adjust the working parameters of the frequency conversion power amplifier module, that is, the frequency conversion power amplifier module is used to control the receiving and transmitting gains of the 5G communication module, to perform correct signal transceiving, and can perform adaptive analysis for different scenes to realize bidirectional communication under the 5G condition.
Referring to fig. 1, an embodiment of the present application provides a 5G communication method applied to a multi-channel link, where the multi-channel link includes a primary channel and at least one secondary channel, and the method includes the following steps:
s10: the broadband radio frequency receiver receives the target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by frequency converting an original signal sent by a base station to a working frequency band.
In the implementation process, from the aspect of bandwidth, the 5G signal also belongs to a broadband signal, so a broadband radio frequency receiver is used for receiving, for wireless communication, electromagnetic waves need to be radiated into space and received from the space, the process is realized through an antenna, the directly received radio frequency electromagnetic waves cannot be subjected to analog-to-digital conversion and subsequent information processing, and the function of the radio frequency receiver is to down-convert electromagnetic waves with high frequency, which are easy to transmit, into low-frequency signals which can be used for information processing.
Referring to the system frame diagram shown in fig. 3, the present application is applied to a multi-channel link, where the multi-channel link has a main channel and at least one auxiliary channel, and the necessary condition for establishing normal connection is normal connection of a radio frequency cable of the main channel, and connection is performed with or without seeing whether the auxiliary channel is connected, when a base station signal needs to be detected, the multi-channel link needs to be in a receiving state without knowing how a frequency conversion power amplifier module needs to perform frequency conversion, and a frequency conversion part is skipped inside the multi-channel link to directly send a target signal to a broadband radio frequency receiver, and at this time, the frequency conversion power amplifier module controls the multi-channel link to be disconnected from a 5G communication module, that is, before step S10, the multi-channel link can be executed:
and switching the radio frequency switch of the variable frequency power amplifier module to the broadband radio frequency receiver so as to connect the variable frequency power amplifier module with the broadband radio frequency receiver and disconnect the variable frequency power amplifier module from the 5G communication module.
As shown in fig. 3, the rf switch is disposed on the auxiliary channel, and the rf switch is similar to a single-pole double-throw switch, and when the rf switch is dialed to a working position, the variable frequency power amplifier module may be connected to the 5G communication module, and when the broadband rf receiver is dialed to another working position, the broadband rf receiver may be connected to the link, and the 5G communication module may be disconnected. Therefore, signals received by the broadband radio frequency receiver can only be amplified by space electromagnetic waves and not be transmitted by the 5G communication module, and additional interference is avoided.
The channel corresponds to the concept of 'flow' in the 5G technology, and under the condition that the base station and the 5G module support, one more channel has one more 'flow', the single channel is called single flow in the industry, the multiple channels are called multiple flows, and under the condition of actual N channels, the speed can generally reach 0.9 × N × single channel speed.
A local oscillator adjustable frequency mixer is arranged in the frequency conversion power amplification module, and can move a signal transmitted by the 5G communication module to an actual working frequency band, move a received target signal to a frequency band required by the 5G communication module, and amplify an output signal of the 5G communication module; and controlling the receiving and transmitting gains of the 5G communication module, and carrying out data transmission on the 5G communication module and user equipment through interfaces such as a USB (universal serial bus), an Ethernet and the like so as to finish the communication between the base station and the user. The frequency conversion power amplification module is equivalent to an executor of the FPGA, can amplify signals sent out by the 5G communication module and also can amplify received signals, so that the communication distance can be greatly increased compared with that of a common 5G terminal. For example, 500m of a common 5G terminal (such as a mobile phone and a 5G communication module) can communicate, and the high-power communication in a specific frequency band can be realized in both 10km and 20 km.
The base station original signal refers to a signal transmitted from a radio frequency unit of a universal base station, and is firstly converted to a working frequency band through external frequency conversion, for example, the signal needs to work in a 1.0Ghz frequency band, a 2.6Ghz signal transmitted by the radio frequency unit of the base station is firstly converted to 1.0Ghz, or the base station is directly configured with a radio frequency unit capable of transmitting 1.0Ghz transmission signal. As a terminal, an antenna is used to receive the signal, that is, a target signal, from a space, where the target frequency band is a frequency band range including an operating frequency band set in advance, for example, in this embodiment, the target frequency band may be configured to be 800Mhz-1.4Ghz, and then the broadband radio frequency receiver is configured to operate on the frequency band, and performs back and forth scanning according to an initial position from the upper frequency band limit to the lower frequency band limit, and the scanning obtains radio frequency signal data.
S20: the FPGA module receives radio frequency signal data.
In the specific implementation process, an FPGA (Field Programmable Gate Array) is a product developed further on the basis of Programmable devices such as PAL (Programmable Array logic) and GAL (general Array logic). The circuit is used as a semi-custom circuit in the field of Application Specific Integrated Circuits (ASICs), not only solves the defects of custom circuits, but also overcomes the defect that the number of gate circuits of the original programmable device is limited. In short, it is a chip with integrated functional modules. The FPGA can automatically configure the power amplifier, realize automatic time slot configuration and frequency conversion local oscillation frequency point and frame header synchronization, and can realize synchronization with a base station without a GPS. And the base station side only needs to be configured to public communication frequency bands and then carries out simple up-conversion and down-conversion, and the frequency conversion of the base station side does not need to be aligned to the global synchronous channel number GSCN.
S30: the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal.
In a specific implementation process, an internal algorithm of the FPGA module may automatically find a 5GNR Signal and obtain an SSB Signal by using a Signal spectrum included in radio frequency Signal data detected by the wideband radio frequency receiver, where NR refers to a new air interface, the 5GNR Signal refers to a brand-new 5G technology independent of the LET4G technology, and the SSB Signal refers to a Synchronization Signal block, which is a basis for synchronizing the modules, and the SSB Synchronization Signal block and the PBCH block (Synchronization Signal and PBCH block, abbreviated as SSB) are composed of a Primary Synchronization Signal block (PSS for short), a Secondary Synchronization Signal block (SSS), and a PBCH, which are different from LTE, and the PSS/SSS may be flexibly configured, and may be configured at any position of a carrier without being configured at a central frequency point of the carrier. Specifically, step S30 includes the steps of:
s301: the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data and obtains a suspected signal in a target frequency band; wherein the suspected signal is a signal similar to the 5GNR signal.
S302: and judging whether the suspected signal is an OFDM signal, if so, executing judgment to judge whether the OFDM signal is loaded with a 5GNR signal.
S303: and if the judgment result of judging whether the OFDM signal is loaded with the 5GNR signal is yes, executing the steps of identifying the subcarrier interval of the OFDM signal and recovering from the OFDM signal to obtain the SSB signal.
In the specific implementation process, various signals may be contained in a frequency band, so that the signals need to be discriminated, and a signal similar to the 5GNR signal characteristic is found in the scanning process, namely the signal is determined as a suspected signal; the OFDM signal is a linear superposition of a plurality of modulated subcarrier signals, and the 5GNR signal is loaded on the OFDM signal, so it is necessary to first determine whether the suspected signal is an OFDM signal, and if so, determine whether the suspected signal is a 5GNR signal, and if so, identify the subcarrier interval of the OFDM signal to recover the SSB signal therefrom.
The suspected signal may not be a required signal, and at this time, the step of analyzing and searching needs to be returned, that is, the judgment result of judging whether the suspected signal is an OFDM signal is negative, the step of returning to the FPGA module to analyze the frequency spectrum of the radio frequency signal in the radio frequency signal data and obtain the suspected signal in the target frequency band is returned until the judgment result is positive, and searching is performed back and forth according to the upper and lower limits of the interval of the target frequency band until the next suspected signal is analyzed, and then the judgment is performed.
S40: and the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal.
In the specific implementation process, after the SSB signal is successfully obtained, the SSB signal is analyzed to obtain the channel parameter information carried by the SSB signal, such as channel capacity, channel bandwidth, transmission rate, and the like, where the channel capacity reflects the maximum amount of information that can be transmitted by a channel, and the size of the channel capacity is independent of the information source; the channel width is the lower and upper frequencies at which signals are allowed to pass through the channel, i.e. a frequency passband is defined through which any composite signal input can pass as long as the lowest and highest frequency components are within this frequency range; the transmission rate is a unit of signal carrying data information, and the number of symbols transmitted through a channel per second is called a channel transmission rate, abbreviated as baud rate, and denoted as bps.
Certainly, the SSB also has other information such as NCGI, which is a 5GNR global cell identifier for distinguishing base stations, and parameter extraction can be realized without human intervention under the support of the internal algorithm of the FPGA. Continuing with the above example, after analyzing the channel parameter information of the SSB, it is known that the SSB signal is originally in the 2.6Ghz band.
S50: the FPGA module adjusts working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
In the specific implementation process, the channel parameter information is known, that is, the frequency band to which the SSB originally belongs is known, that is, the frequency band of the original signal of the base station is located, so that the operating parameter of the variable frequency power amplifier module can be adjusted, that is, the local oscillation frequency point of the power amplifier is calculated according to the frequency band information and is issued to the power amplifier, and a frame synchronization signal block is generated according to the synchronization information as the transceiving control signal of the power amplifier, that is, under the condition that the link is connected to implement communication:
according to the channel parameter information, the frequency conversion parameters of the signals transmitted and received by the frequency conversion power amplification module in the link are adjusted, so that the frequency band of the signals transmitted to the base station by the frequency conversion power amplification module can be matched with the working frequency band, and the signals transmitted to the 5G communication module by the frequency conversion power amplification module can be matched with the frequency band of the original signals, thereby realizing the communication between the base station and the 5G communication module.
The specific application is as follows: the frequency conversion power amplification module is controlled to convert the 1.0GHz signal into 2.6GHz signal to the 5G communication module, the signal sent by the base station can be correctly received, and meanwhile, the 2.6GHz signal sent by the 5G communication module is correctly sent to the base station through the antenna after being converted into 1.0GHz signal, so that the two-way communication is realized.
S60: detecting the actual gain of the 5G communication module in the connected link;
s70: and adjusting the working parameters of the 5G communication module according to the difference between the expected gain and the actual gain.
In the specific implementation process, because the channel parameter calculation is performed independently of the 5G communication module in the foregoing steps, detection needs to be performed when the link is connected, signal quality of input and output of the 5G communication module is detected, and whether the real-time gain reaches the expected gain or not is detected, and if the real-time gain does not reach the expected gain, real-time adjustment is performed according to a difference between the expected gain and the actual gain, so as to solve the problem that estimation is not accurate only depending on the link of the 5G communication module during long-distance communication.
In an embodiment, after the FPGA module analyzes the SSB signal and obtains channel parameter information carried in the SSB signal, the 5G communication method further includes:
and judging whether the channel parameter information is valid, if so, returning to the step of analyzing the frequency spectrum of the radio-frequency signal in the radio-frequency signal data by the FPGA module and obtaining a suspected signal in a target frequency band until the judgment result is valid, and obtaining the target channel parameter information.
In a specific implementation process, after information carried by an SSB signal is analyzed, in order to ensure that communication can be performed efficiently, an error rate is low, it is necessary to further determine whether the analyzed information is valid information, that is, not required information, and similarly, if the analyzed information is invalid information, the step of analyzing a frequency spectrum of a radio frequency signal in radio frequency signal data is returned, a suspected signal is obtained in a target frequency band, the suspected signal is searched back and forth according to upper and lower limits of an interval of the target frequency band until a next suspected signal is analyzed, the judgment is performed again to obtain the SSB signal, and then validity judgment is performed until the obtained information is valid information, that is, target channel parameter information.
According to the step of validity judgment, the FPGA module adjusts the working parameters of the variable frequency power amplifier module according to the channel parameter information, so as to realize the communication between the base station and the 5G communication module, and the method comprises the following steps:
and the FPGA module adjusts the working parameters of the variable frequency power amplifier module according to the target channel parameter information, so that the communication between the base station and the 5G communication module is realized.
In one embodiment, before detecting the actual gain of the 5G communication module in the connected link, the 5G communication method further includes:
and judging whether the 5G communication module is successfully accessed into the link, if not, returning to the step of analyzing the frequency spectrum of the radio-frequency signal in the radio-frequency signal data by the FPGA module to obtain an SSB signal until the judgment result is yes.
In the specific implementation process, since the channel detection is performed independently of the 5G communication module, when the validity is verified against the past, it is necessary to ensure that the 5G communication module successfully accesses the link, which may be unstable in interface connection on one hand, and may be that the searched signal is not suitable on the other hand, so that it is necessary to return to the step of analyzing the spectrum to perform the search analysis again.
In this embodiment, on the disconnected link, the broadband radio frequency receiver receives a signal from the base station transmitted at the auxiliary channel, and continuously scans in the target frequency band, and the FPGA may analyze the frequency spectrum obtained by scanning, thereby finding out the synchronization signal block, and after analyzing the synchronization signal block, may know the channel parameter information carried thereon, thereby implementing channel estimation independent of the 5G communication module, and according to the analyzed SSB signal, adjust the working parameters of the frequency conversion power amplification module, and implement synchronization between the signal and the base station, i.e., after the link is connected, the frequency conversion power amplification module converts the frequency of the signal sent by the base station to the 5G communication module and transmits the frequency of the signal sent by the 5G communication module to the base station, thereby implementing bidirectional communication under the 5G condition by self-adaptive analysis for different scenes.
The principles of the present application are further illustrated based on the logic diagram of the method of the present application in one embodiment as shown in FIG. 4:
firstly, configuring a power amplifier into a receiving mode without frequency conversion direct amplification;
the connection between the auxiliary antenna port of the 5G communication module and the power amplifier channel is disconnected, so that additional interference is avoided, and the broadband radio frequency receiver can only receive signals amplified by space electromagnetic waves;
configuring a broadband radio frequency receiver to a working frequency band, and starting to carry out self-adaptive analysis;
the FPGA module analyzes the frequency spectrum of the radio frequency signal until an SSB signal is found and then analyzed;
judging the validity of the parameters after the analysis, if the validity is reached, switching a power amplifier switch to be synchronous with the frame header, setting the required local oscillation frequency and enabling frequency conversion;
then configuring a broadband radio frequency receiver to a frequency band after frequency conversion, and communicating a power amplifier with an auxiliary antenna interface of the 5G communication module;
under the condition that the link is successfully accessed, analyzing the radio frequency signal spectrum scanned by the broadband signal receiver in the current state again, further finely adjusting frame header synchronization and power amplifier gain, and circularly monitoring to grasp the communication condition in real time;
in the above process, when the SSB signal cannot be found, the parameters are invalid, and the access link is unsuccessful, the procedure returns to the step of analyzing the spectrum of the rf signal for the first time to perform the search and analysis again.
Referring to fig. 2, based on the same inventive concept as in the foregoing embodiment, an embodiment of the present application further provides a 5G communication device applied to a multi-channel link, where the multi-channel link includes a primary channel and at least one secondary channel, and the device includes:
the broadband radio frequency receiver is used for receiving a target signal on the disconnected auxiliary channel and scanning in a target frequency band to obtain radio frequency signal data; the target signal is obtained by frequency conversion of an original signal sent by a base station to a working frequency band;
the FPGA module is used for receiving radio frequency signal data;
the FPGA module includes:
the analysis unit is used for analyzing the frequency spectrum of the radio-frequency signal in the radio-frequency signal data to obtain an SSB signal;
the analysis unit is used for analyzing the SSB signal to obtain channel parameter information carried in the SSB signal;
the control unit is used for adjusting working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
It should be noted that, in this embodiment, each module in the communication device corresponds to each step in the 5G communication method in the foregoing embodiment one to one, and therefore, for a specific implementation of this embodiment, reference may be made to the implementation of the 5G communication method, which is not described herein again.
In one embodiment, as shown in fig. 3, since the information to be analyzed in the signal does not vary with the signal strength, a power divider may be disposed to connect the wideband rf receiver and the secondary channel, and adjust the rf energy received by the wideband rf receiver, so that part of the signal on the secondary channel is sent to the wideband rf receiver as the target signal. The FPGA module directly finishes steps of searching, modulation and analysis and the like through an internal algorithm by using an NR channel decoding unit to finish channel calculation, then sends information to the power amplifier unit, generates a control signal so that the power amplifier control unit and the 5G control unit respectively control the variable-frequency power amplifier module and the 5G communication module, finishes self-adaptive analysis configuration of the base station and the 5G communication module and realizes communication between the base station and a user.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The sequence of the embodiments of the present application is merely for description, and does not represent the advantages and disadvantages of the embodiments.
In summary, the present application provides a 5G communication method and a communication device, including: the broadband radio frequency receiver receives a target signal on the disconnected auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by converting an original signal sent by a base station into a working frequency band; the FPGA module receives radio frequency signal data; the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal; the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal; the FPGA module adjusts working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein, the working parameters include: and the frequency conversion power amplification module receives and sends the frequency conversion parameters of the signals in the link. According to the method, on a disconnected link, a broadband radio frequency receiver receives a signal which is transmitted from a base station and is transmitted from an auxiliary channel, the signal is continuously scanned in a target frequency band, an FPGA can analyze a frequency spectrum obtained by scanning, a synchronous signal block is found out, channel parameter information carried on the synchronous signal block can be known after the synchronous signal block is analyzed, channel estimation independent of a 5G communication module is achieved, working parameters of a frequency conversion power amplification module are adjusted according to an analyzed SSB signal, synchronization of the signal and the base station is achieved, namely after the link is connected, the frequency conversion power amplification module transmits the frequency conversion of the signal transmitted by the base station to the 5G communication module and the frequency conversion of the signal transmitted by the 5G communication module to the base station, and therefore bidirectional communication under the 5G condition can be achieved through self-adaptive analysis aiming at different scenes.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A5G communication method is applied to a multi-channel link, wherein the multi-channel link comprises a main channel and at least one auxiliary channel, and the 5G communication method comprises the following steps:
the broadband radio frequency receiver receives the disconnected target signal on the auxiliary channel and scans in a target frequency band to obtain radio frequency signal data; the target signal is obtained by frequency conversion of an original signal sent by a base station to a working frequency band;
the FPGA module receives the radio frequency signal data;
the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal;
the FPGA module analyzes the SSB signal to obtain channel parameter information carried in the SSB signal;
the FPGA module adjusts working parameters of a variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein the operating parameters include: and the frequency conversion power amplification module receives and sends the frequency conversion parameters of the signals in the link.
2. The 5G communication method according to claim 1, wherein the FPGA module analyzes a spectrum of a radio frequency signal in the radio frequency signal data to obtain an SSB signal, and comprises:
the FPGA module analyzes the frequency spectrum of the radio frequency signal in the radio frequency signal data and obtains a suspected signal in the target frequency band; wherein the suspected signal is a signal similar to the 5GNR signal characteristic;
judging whether the suspected signal is an OFDM signal, if so, executing to judge whether a 5GNR signal is loaded on the OFDM signal;
and if the judgment result of judging whether the OFDM signal is loaded with the 5GNR signal is yes, executing the steps of identifying the subcarrier interval of the OFDM signal and recovering from the OFDM signal to obtain an SSB signal.
3. The 5G communication method according to claim 2, wherein if the determination result that the suspected signal is the OFDM signal is negative, the FPGA module is returned to analyze the frequency spectrum of the radio frequency signal in the radio frequency signal data, and the step of obtaining the suspected signal in the target frequency band is performed until the determination result is yes.
4. The 5G communication method according to claim 2, wherein after the FPGA module parses the SSB signal and obtains channel parameter information carried in the SSB signal, the 5G communication method further comprises:
judging whether the channel parameter information is valid or not, if the judgment result is invalid, returning to the step of analyzing the frequency spectrum of the radio frequency signal in the radio frequency signal data by the FPGA module and obtaining a suspected signal in the target frequency band, and obtaining target channel parameter information until the judgment result is valid;
the adjusting the working parameters of the frequency conversion power amplifier module according to the channel parameter information to realize the communication between the base station and the 5G communication module comprises the following steps:
and adjusting the working parameters of the variable frequency power amplifier module according to the target channel parameter information to realize the communication between the base station and the 5G communication module.
5. The 5G communication method according to claim 1, wherein the FPGA module adjusts operating parameters of a variable frequency power amplifier module according to the channel parameter information, and realizes communication between the base station and the 5G communication module, and the method comprises the following steps:
the FPGA module adjusts the frequency conversion power amplifier module according to the channel parameter information, the frequency conversion power amplifier module is in the frequency conversion parameter of receiving and sending signals in the link, so that the frequency band of the signals transmitted to the base station by the frequency conversion power amplifier module can be matched with the working frequency band, and the frequency band of the signals transmitted to the 5G communication module by the frequency conversion power amplifier module can be matched with the frequency band of the original signals, and communication between the base station and the 5G communication module is realized.
6. The 5G communication method according to claim 1, wherein the FPGA module controls a variable frequency power amplifier module to send and receive variable frequency parameters of signals in the link according to the channel parameter information, and after the communication between the base station and the 5G communication module is implemented, the 5G communication method further comprises:
detecting the actual gain of the 5G communication module in a connected link;
and adjusting the working parameters of the 5G communication module according to the difference between the expected gain and the actual gain.
7. The 5G communication method according to claim 1, wherein before detecting the actual gain of the 5G communication module in the connected link, the 5G communication method further comprises:
and judging whether the 5G communication module is successfully accessed into the link, if not, returning to the FPGA module to analyze the frequency spectrum of the radio-frequency signal in the radio-frequency signal data to obtain an SSB signal until the judgment result is yes.
8. The 5G communication method according to claim 1, wherein the wideband radio frequency receiver receives a target signal on the disconnected secondary channel, and before scanning within a target frequency band to obtain radio frequency signal data, the 5G communication method further comprises:
and switching the radio frequency switch of the variable frequency power amplifier module to a broadband radio frequency receiver so as to connect the variable frequency power amplifier module with the broadband radio frequency receiver and disconnect the variable frequency power amplifier module from the 5G communication module.
9. A 5G communication device, for use in a multi-channel link including a primary channel and at least one secondary channel, comprising:
the broadband radio frequency receiver is used for receiving the disconnected target signal on the auxiliary channel and scanning in a target frequency band to obtain radio frequency signal data; the target signal is obtained by frequency conversion of an original signal sent by a base station to a working frequency band;
the FPGA module is used for receiving radio frequency signal data;
the FPGA module includes:
the analysis unit is used for analyzing the frequency spectrum of the radio frequency signal in the radio frequency signal data to obtain an SSB signal;
the analyzing unit is used for analyzing the SSB signal to obtain channel parameter information carried in the SSB signal;
the control unit is used for adjusting working parameters of the variable frequency power amplifier module according to the channel parameter information to realize communication between the base station and the 5G communication module; wherein the operating parameters include: and the frequency conversion power amplification module receives and transmits the frequency conversion parameters of the signals in the link.
10. The 5G communication device of claim 9, further comprising a power splitter for connecting the wideband radio frequency receiver with the secondary channel such that a portion of the signal on the secondary channel is fed into the wideband radio frequency receiver as the target signal.
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KR102317382B1 (en) * | 2021-05-21 | 2021-10-26 | 주식회사 디비콤 | Repeater capable of selecting base station signals |
CN113746522A (en) * | 2021-07-21 | 2021-12-03 | 北京赫微科技有限公司 | 5G repeater signal processing method |
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CN111246484A (en) * | 2020-01-21 | 2020-06-05 | 中国空间技术研究院 | Spectrum self-adaptive high-performance communication system and method |
CN112929133A (en) * | 2021-05-10 | 2021-06-08 | 广州慧睿思通科技股份有限公司 | Channel processing device and method based on field programmable logic gate array |
KR102317382B1 (en) * | 2021-05-21 | 2021-10-26 | 주식회사 디비콤 | Repeater capable of selecting base station signals |
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