CN115347903A - Frequency shift distribution near-end machine, system and signal frequency shift processing method - Google Patents

Frequency shift distribution near-end machine, system and signal frequency shift processing method Download PDF

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Publication number
CN115347903A
CN115347903A CN202110521774.9A CN202110521774A CN115347903A CN 115347903 A CN115347903 A CN 115347903A CN 202110521774 A CN202110521774 A CN 202110521774A CN 115347903 A CN115347903 A CN 115347903A
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China
Prior art keywords
signal
frequency
port
path
amplifier
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Chinese (zh)
Inventor
张军民
林衡华
王建斌
范建忠
周武
朱文聪
蒋勇
厉家俊
刘超
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Priority to CN202110521774.9A priority Critical patent/CN115347903A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

The disclosure provides a frequency shift distribution near-end machine, a frequency shift distribution near-end system and a signal frequency shift processing method, and relates to the technical field of mobile communication. The utility model discloses a frequency shift distributes near-end machine includes: a splitter having one end configured to be connected to the prrus of 4G and 5G and the other end as a 4G signal port and a 5G signal port, the splitter configured to split a signal path connected to the prrus of 4G and 5G into a 4G signal path and a 5G signal path; an amplifier configured to amplify the 4G uplink and downlink signals; the first frequency converter is configured to convert the 5G downlink signal from the splitter into a 5G intermediate frequency signal; and the combiner is configured to be conducted with the far-end connecting port after combining a path connected with the amplifier and a path connected with the first frequency converter. The frequency shift distribution near-end machine can adopt a multimode pRRU to simultaneously provide 5G and 4G information sources, and the amplifier is used for amplifying the 4G signals without a separate 4G information source, so that the cost of system construction is reduced.

Description

Frequency shift distribution near-end machine, system and signal frequency shift processing method
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a frequency shift distribution near-end device, system, and signal frequency shift processing method.
Background
At present, the frequency band adopted by 5G is mainly 3.5GHz, and when the frequency band is applied to a traditional indoor distribution system, the problems of incompatible system frequency and high loss exist. In the related technology, a frequency shift mode is needed to be adopted to shift the 3.5GHz to a lower frequency band for transmission, so that the problems of incompatible device frequencies and high frequency band loss are solved.
Disclosure of Invention
One object of the present disclosure is to reduce the frequency shift system construction cost and improve the equipment utilization.
According to an aspect of some embodiments of the present disclosure, there is provided a frequency shift distribution near-end machine, including: a splitter, one end of which is configured to be connected to the prrus of the remote radio units 4G and 5G and the other end of which is a 4G signal port and a 5G signal port, the splitter being configured to split a signal path connected to the pRRU of the 4G and 5G into a 4G signal path and a 5G signal path, the 4G signal path being conductive to the 4G signal port and the 5G signal path being conductive to the 5G signal port; one end of the amplifier is connected with the 4G signal port, the other end of the amplifier is connected with the combiner, and the amplifier is configured to amplify the 4G uplink and downlink signals; the first frequency converter is connected with the 5G signal port at one end and the combiner at the other end and is configured to convert the 5G downlink signal from the combiner into a 5G intermediate frequency signal; a combiner, comprising: the combiner is configured to be conducted with the far-end connecting port after a path connected with the amplifier and a path connected with the first frequency converter are combined.
In some embodiments, the combiner further includes a third port configured to connect with 2G and 3G RRUs; the combiner is configured to be conducted with the far-end connection port after combining a path connected with the amplifier, a path connected with the first frequency converter and paths connected with RRUs of 2G and 3G.
In some embodiments, the 4G signal ports of the splitter include a 4G upstream signal port and a 4G downstream signal port; the amplifier comprises an uplink amplifier and a downlink amplifier; the first port comprises a first uplink port and a first downlink port; the first uplink port is connected with the input end of the uplink amplifier, and the output end of the uplink amplifier is connected with the 4G uplink signal port; the 4G downlink signal port is connected with the input end of the downlink amplifier, and the output end of the downlink amplifier is connected with the first downlink port; the uplink amplifier is configured to amplify the 4G uplink signal from the remote terminal and output the signal to the 4G uplink signal port; the downlink amplifier is configured to amplify the 4G downlink signal from the combiner and send the amplified 4G downlink signal to the combiner; the splitter is also configured to combine the amplified 4G upstream signal with the 5G upstream signal and output the combined signal to the prrus of 4G and 5G.
In some embodiments, the first frequency converter is further configured to frequency convert the upstream 5G intermediate frequency signal from the combiner to the frequency of the predetermined 5G upstream signal.
In some embodiments, the frequency shift distribution near-end machine further comprises: a wave trap, one end of which is configured to be connected with the 4G and 5G pRRU, and the other end of which is connected with the second frequency converter and is configured to filter the 4G signal and output a 5G signal; one end of the second frequency converter is connected with the wave trap, the other end of the second frequency converter is connected with the fourth port of the combiner, and the second frequency converter is configured to convert the 5G downlink signal from the wave trap into a 5G intermediate frequency signal; the combiner further comprises a fourth port configured to be connected with the second frequency converter; the combiner is configured to be conducted with the far-end connection port after combining a path connected with the amplifier, a path connected with the first frequency converter, a path connected with the second frequency converter and paths connected with RRUs of 2G and 3G.
In some embodiments, the second frequency converter is further configured to frequency convert the upstream 5G intermediate frequency signal from the combiner to the frequency of the predetermined 5G upstream signal.
In some embodiments, the pRRU of 4G and 5G is a 4G and 5G multimodal pRRU of 2T 2R.
The frequency shift distribution near-end machine can adopt a multimode pRRU to simultaneously provide 5G and 4G information sources, and the amplifier is used for amplifying the 4G signals without a separate 4G information source, so that the cost of system construction is reduced, and the compatibility of deployment equipment is improved.
According to an aspect of some embodiments of the present disclosure, there is provided a frequency shift distribution system including: any of the frequency shift distribution near-end machines above; and a frequency-shifting distributed remote unit comprising: a remote-end splitter configured to split a signal path connected to the frequency-shift distribution near-end machine into a 4G signal path and a 5G signal path; and the far-end machine frequency converter is configured to be connected with the 5G signal port of the splitter and convert the downstream 5G intermediate frequency signal into the frequency of the predetermined 5G downstream signal.
In some embodiments, the remote machine splitter is configured to split a signal path connected to the frequency shift distribution near-end machine into a 4G signal path and two 5G signal paths; the remote end frequency converter includes: the first remote-end machine frequency converter is configured to convert the downlink 5G intermediate-frequency signal of the first path split by the remote-end machine splitter into the frequency of a preset downlink signal; and the second remote-end machine frequency converter is configured to convert the downstream 5G intermediate-frequency signal of the second path split by the remote-end machine splitter into the frequency of a preset downstream signal.
In some embodiments, the frequency shift distribution system further comprises: and a remote radio unit pRRU of 4G and 5G configured to be connected to a splitter of the frequency shift distribution near-end unit.
In some embodiments, the frequency shift distribution system further includes 2G and 3G RRUs configured to connect to a splitter of the frequency shift distribution near-end machine.
In the frequency shift distribution system, the near-end machine can adopt the multimode pRRU to simultaneously provide 5G and 4G information sources, the amplifier is used for amplifying the 4G signals, the independent 4G information source is not needed, the system construction cost is reduced, and the compatibility of deployment equipment is improved.
According to an aspect of some embodiments of the present disclosure, a signal frequency shift processing method is provided, including: splitting a signal path connected to the remote radio units pRRU of 4G and 5G into a 4G signal path and a 5G signal path by a splitter; performing frequency conversion processing on signals of a 5G signal path through a first frequency converter, wherein the frequency conversion processing comprises the step of converting 5G downlink signals from a splitter into 5G intermediate-frequency signals; and combining the 4G signal path with the 5G signal path passing through the first frequency converter through a combiner so as to interact with a frequency shift distribution remote terminal through the combined path, wherein the 4G signal path is amplified between the splitter and the combiner through an amplifier.
In some embodiments, the signal frequency shift processing method further comprises: and the signals of the 5G signal path are subjected to frequency conversion processing through a first frequency converter, and the uplink 5G intermediate frequency signals from the combiner are subjected to frequency conversion into the frequency of the preset 5G uplink signals.
In some embodiments, the signal frequency shift processing method further comprises: filtering the 4G signal in a path connected with the 4G and 5G pRRU through a wave trap and outputting a 5G downlink signal; the second frequency converter is used for converting the 5G downlink signal from the trap into a 5G intermediate frequency signal and outputting the 5G intermediate frequency signal to the combiner; and combining the 5G signal path passing through the second frequency converter, the 4G signal path passing through the amplifier and the 5G signal path passing through the first frequency converter by using a combiner so as to interact with the frequency shift distribution remote terminal through the combined path.
By the method, the multimode pRRU can be adopted at the near-end machine side of the frequency shift distribution system to simultaneously provide 5G and 4G information sources, the amplifier is utilized to amplify the 4G signals, the independent 4G information source is not needed, the system construction cost is reduced, and the compatibility of the deployment equipment is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a schematic diagram of a frequency shift distribution system in the related art.
Fig. 2 is a schematic diagram of some embodiments of a frequency-shifted distributed near-end machine of the present disclosure.
Fig. 3 is a schematic diagram of further embodiments of a frequency-shifted distributed near-end machine of the present disclosure.
Fig. 4 is a schematic diagram of further embodiments of a frequency-shifted distributed near-end machine of the present disclosure.
Fig. 5 is a schematic diagram of still further embodiments of a frequency-shifted distributed near-end machine of the present disclosure.
Fig. 6 is a schematic diagram of some embodiments of a frequency-shifted distribution system of the present disclosure.
Fig. 7 is a schematic diagram of further embodiments of a frequency-shifted distribution system of the present disclosure.
Fig. 8 is a flow chart of some embodiments of a signal frequency shift processing method of the present disclosure.
Detailed Description
The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.
In the frequency shift distribution system in the related art, as shown in fig. 1, paths of 2G and 3G RRUs and paths of 4G RRUs are combined by a combiner; the path of the 5G pRRU is connected with the combiner after the frequency converter, and is further combined with the combination of the 2G/3G path and the 4G path to be connected with the remote terminal.
In such a scheme, a separate 4G RRU and a separate 5G pRRU are required as preamble devices, which is costly in the deployment process and long in implementation period.
A schematic diagram of some embodiments of the frequency-shifted distributed near-end machine 21 of the present disclosure is shown in fig. 2.
One end of the splitter 211 is configured to be connected to the 4G and 5G pRRU (e.g. 4G/5G pRRU shown in the figure, and has 4G and 5G signal uplink and downlink functions), and the other end of the splitter 211 is a 4G signal port and a 5G signal port, and is connected to the amplifier 212 and the first frequency converter 213, respectively.
The splitter 211 can split a signal path connected to the pRRU of 4G and 5G into a 4G signal path and a 5G signal path, the 4G signal path being in communication with the 4G signal port, and the 5G signal path being in communication with the 5G signal port.
One end of the amplifier 212 is connected to the 4G signal port, and the other end is connected to the combiner, and can amplify the 4G uplink and downlink signals. Specifically, the downlink signal from the splitter 211 is amplified and sent to the combiner 214, and the uplink signal from the combiner 214 is amplified and sent to the splitter 211.
One end of the first frequency converter 213 is connected to the 5G signal port of the splitter 211, and the other end is connected to the combiner 214. The first frequency converter 213 can convert the 5G downlink signal from the splitter 211 into a 5G intermediate frequency signal, that is, reduce the downlink signal to a frequency band compatible with the indoor distribution system. The 5G intermediate frequency signal is a signal of a frequency band compatible with an indoor distribution system, and the capacity of the indoor distribution system may be not more than 2.7GHz. In some embodiments, the frequency band of the 5G if signal can be set to 1GHz, and the specific frequency conversion selection should avoid intermodulation interference of multiple systems.
The combiner 214 includes a first port connected to the amplifier, a second port connected to the first frequency converter (two ports on the left side of the combiner 214 in fig. 2), and a far-end connection port (a port on the right side of the combiner 214 in fig. 2). The combiner 214 can combine the path connected to the amplifier and the path connected to the first frequency converter, and then can be connected to the remote connection port.
The frequency shift distribution near-end machine can adopt a multimode pRRU to simultaneously provide 5G and 4G information sources, and the amplifier is used for amplifying 4G signals without a separate 4G information source, so that the cost of system construction is reduced, and the compatibility of deployment equipment is improved.
Schematic diagrams of further embodiments of the frequency-shifted distributed near-end machine of the present disclosure are shown in fig. 3.
The combiner 214 further includes a third port 2143, which can be connected to 2G and 3G RRUs (e.g., 2G/3G RRUs shown in fig. 3, and have uplink and downlink functions for 2G and 3G signals), on the basis of the first port 2141 and the second port 2142 shown in fig. 2.
The combiner 214 can combine the path connected to the amplifier, the path connected to the first frequency converter, and the paths connected to the 2G and 3G RRUs (three paths on the left side of the combiner in fig. 3), and then communicate with the far-end connection port.
The frequency shift distribution near-end machine can combine 4G and 5G signals for transmission and realize the compatibility of an indoor distribution system, and can also combine 2G and 3G signals, thereby further improving the compatibility of deployed equipment and the bearing capacity of the system.
A schematic diagram of further embodiments of the frequency-shifted distributed near-end machine of the present disclosure is shown in fig. 4.
The 4G signal ports of splitter 411 include a 4G upstream signal port and a 4G downstream signal port.
The amplifier includes an upstream amplifier 4122 and a downstream amplifier 4121.
The first port of the combiner 414 includes a first upstream port (e.g., 4G downstream as shown in the figure) and a first downstream port (e.g., 4G downstream as shown in the figure).
The first upstream port is connected to an input terminal of the upstream amplifier 4122, and an output terminal of the upstream amplifier 4122 is connected to the 4G upstream signal port. The 4G downlink signal port is connected to an input terminal of the downlink amplifier 4121, and an output terminal of the downlink amplifier 4121 is connected to the first downlink port.
In the process of processing the uplink signal, the uplink amplifier 4122 can amplify the 4G uplink signal split by the combiner from the signal from the remote terminal, and output the amplified signal to the 4G uplink signal port of the splitter 411. The splitter 411 can also combine the amplified 4G uplink signal and the 5G uplink signal and output the combined signal to the pRRU of 4G and 5G.
In the process of processing the downlink signal, the downlink amplifier 4121 can amplify the 4G downlink signal from the splitter 411 and send the amplified signal to the combiner 414.
The frequency shift distribution near-end machine can process uplink and downlink signals through different channels and amplify the signals through amplifiers in different directions, compatibility of 4G uplink and downlink transmission is improved under the condition that no single 4G RRU is provided, and reliability of signal transmission is improved.
In some embodiments, as shown in fig. 4, the first frequency converter 4131 can also convert the upstream 5G if signal from the combiner to the frequency of the predetermined 5G upstream signal, and transmit the frequency to the splitter 411, thereby implementing the up-down frequency shift transmission of the 5G signal. In some embodiments, the frequency band of the 5G if signal can be set to 1GHz, and the specific frequency conversion selection should avoid intermodulation interference of multiple systems.
Still other embodiments of the frequency-shift distribution near-end machine of the present disclosure are schematically illustrated in fig. 5, and the frequency-shift distribution near-end machine further includes a trap 415 and a second frequency converter 4132.
The trap 415 has one end (left end in the figure) capable of being connected to prrus of 4G and 5G, and the other end (right end in the figure) capable of being connected to the second frequency converter, and the trap 415 is capable of filtering 4G signals and outputting 5G signals. In some embodiments, the 1T1R port of the prrus of 4G and 5G to which the trap 415 is connected is a diversity port, and the 1T1R port of the prrus of 4G and 5G to which the splitter 411 is connected is a main set port. The signal frequencies of the main set and the diversity ports are the same, and the phases are different.
One end (left end in the figure) of the second frequency converter 4132 is connected to the trap 415, and the other end (right end in the figure) is connected to the fourth port (5G if 2 in the figure) of the combiner 414, so as to convert the 5G downlink signal from the trap into a 5G if signal. In some embodiments, the second frequency converter 4132 is also capable of frequency converting the upstream 5G intermediate frequency signal from the combiner to the frequency of the predetermined 5G upstream signal.
The combiner 414 further comprises a fourth port connectable to a second frequency converter. The combiner 414 can combine the path connected to the amplifier, the path connected to the first frequency converter, the path connected to the second frequency converter, and the paths connected to the 2G and 3G RRUs, and then communicate with the remote connection port.
The frequency shift distribution near-end machine can realize the compatibility with the pRRUs of 4G and 5G of 2T2R, and realizes the compatibility of deployed equipment by taking the multi-mode pRRUs of 4G and 5G of 2T2R as information sources, thereby further improving the compatibility of the deployed equipment, reducing the demand of RRU, reducing the deployment cost of the system and improving the deployment efficiency.
A schematic diagram of some embodiments of the frequency-shifted distribution system of the present disclosure is shown in fig. 6.
The frequency shift distribution near-end machine 61 may be any of those mentioned above.
Frequency-shifting distributed remote 62, comprising: a remote splitter 621 and a remote transducer 622.
The remote unit splitter 621 is capable of splitting a path connected to the frequency shift distribution near-end unit into a 4G signal path and a 5G signal path. The remote-end frequency converter 622 is connected to the 5G signal port of the splitter, and converts the downstream 5G intermediate frequency signal into a frequency of a predetermined 5G downstream signal.
In the frequency shift distribution system, the near-end machine can adopt a multimode pRRU to simultaneously provide 5G and 4G information sources, and the amplifier is used for amplifying the 4G signals without a separate 4G information source, so that the system construction cost is reduced, and the compatibility of deployment equipment is improved.
In some embodiments, as shown in fig. 7, the frequency shift distribution near-end machine may be as described above in the embodiment shown in fig. 5, and the far-end machine splitter is capable of splitting the path connected to the frequency shift distribution near-end machine into a 4G signal path and two 5G signal paths.
The remote transducer 622 includes: a first distal end transducer 6221 and a second distal end transducer 6222.
The first remote-end-unit frequency converter 6221 is capable of frequency-converting the first downlink 5G if signal split by the remote-end-unit splitter into a predetermined downlink signal frequency. The second remote-end frequency converter 6222 is capable of frequency-converting the downstream 5G intermediate-frequency signal of the second path split by the remote-end splitter into a frequency of a predetermined downstream signal.
In the frequency shift distribution system, the near-end machine can adopt the multimode pRRU to simultaneously provide 5G and 4G information sources, the amplifier is used for amplifying the 4G signals, the independent 4G information source is not needed, the system construction cost is reduced, and the compatibility of deployment equipment is improved.
In some embodiments, the frequency-shifted distribution system further comprises: the radio remote units prrus of 4G and 5G can be connected to the splitter of the frequency shift distribution near-end as 4G and 5G. In some embodiments, the frequency shift distribution system further comprises 2G and 3G RRUs capable of connecting to the splitter of the frequency shift distribution near-end as 2G and 3G. A separate 5G, separate 4G source is not required in the frequency-shifted distribution system of the present disclosure.
The frequency shift distribution system can reduce the construction cost of indoor signal transmission, improve compatibility and improve deployment efficiency.
A flow chart of some embodiments of the signal frequency shift processing method of the present disclosure is shown in fig. 8. The signal frequency shift processing method may be based on any one of the frequency shift distribution near-end machine and the frequency shift distribution system.
In step 801, paths connected to the remote radio units pRRU of 4G and 5G are split into a 4G signal path and a 5G signal path by a splitter.
In step 802, the signal of the 5G signal path is processed by frequency conversion through a first frequency converter, including frequency conversion of the 5G downlink signal from the splitter into a 5G intermediate frequency signal.
In step 803, the 4G signal path and the 5G signal path passing through the first frequency converter are combined by a combiner, so that the combined path interacts with the frequency shift distribution remote terminal, wherein the 4G signal path is amplified by an amplifier between the splitter and the combiner.
By the method, the multimode pRRU can be adopted at the near-end machine side of the frequency shift distribution system to simultaneously provide 5G and 4G information sources, the amplifier is utilized to amplify the 4G signals, the independent 4G information source is not needed, the system construction cost is reduced, and the compatibility of the deployment equipment is improved.
In some embodiments, the signals of the 5G signal path are processed by frequency conversion through the first frequency converter, and the uplink 5G intermediate frequency signal from the combiner is converted into the frequency of the predetermined 5G uplink signal, so as to implement uplink and downlink frequency shift transmission of the 5G signal.
In some embodiments, the 4G signal in the path connected to the 4G and 5G pRRU may be further filtered by a filter trap to output a 5G downstream signal; the second frequency converter is used for converting the 5G downlink signal from the trap into a 5G intermediate frequency signal and outputting the 5G intermediate frequency signal to the combiner; and combining the 5G signal path passing through the second frequency converter, the 4G signal path passing through the amplifier and the 5G signal path passing through the first frequency converter by using a combiner so as to interact with the frequency shift distribution remote terminal through the combined path.
By the method, the 5G and 4G information sources can be simultaneously provided by adopting the multi-mode pRRU, the 4G signal is amplified by using the amplifier, a separate 4G information source is not needed, the system construction cost is reduced, and the compatibility of the deployment equipment is improved.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may be made; all of which are intended to be covered by the scope of the claims of this disclosure without departing from the spirit thereof.

Claims (14)

1. A frequency-shifted distributed near-end machine comprising:
a splitter, one end of which is configured to be connected to the prrus of 4G and 5G and the other end of which is a 4G signal port and a 5G signal port, the splitter being configured to split a signal path connected to the pRRU of 4G and 5G into a 4G signal path and a 5G signal path, the 4G signal path being conductive to the 4G signal port and the 5G signal path being conductive to the 5G signal port;
one end of the amplifier is connected with the 4G signal port, the other end of the amplifier is connected with the combiner, and the amplifier is configured to amplify the 4G uplink and downlink signals;
a first frequency converter, one end of which is connected with the 5G signal port and the other end of which is connected with the combiner, and which is configured to convert the 5G downlink signal from the splitter into a 5G intermediate frequency signal;
a combiner, comprising: the combiner is configured to be conducted with the far-end connection port after combining a path connected with the amplifier and a path connected with the first frequency converter.
2. The frequency shift distribution near-end machine of claim 1, wherein the combiner further comprises a third port configured to connect with 2G and 3G RRUs;
the combiner is configured to be communicated with the far-end connection port after combining a path connected with the amplifier, a path connected with the first frequency converter and paths connected with 2G and 3G RRUs.
3. The frequency-shifting distributed near-end machine of claim 1,
the 4G signal ports of the splitter comprise a 4G uplink signal port and a 4G downlink signal port;
the amplifier comprises an uplink amplifier and a downlink amplifier;
the first port comprises a first uplink port and a first downlink port;
the first uplink port is connected with the input end of the uplink amplifier, and the output end of the uplink amplifier is connected with the 4G uplink signal port; the 4G downlink signal port is connected with the input end of the downlink amplifier, and the output end of the downlink amplifier is connected with the first downlink port;
the uplink amplifier is configured to amplify a 4G uplink signal from a remote terminal and output the amplified 4G uplink signal to the 4G uplink signal port; the downlink amplifier is configured to amplify the 4G downlink signal from the splitter and send the amplified 4G downlink signal to the combiner;
the splitter is further configured to combine the amplified 4G uplink signal with a 5G uplink signal and output the combined 4G uplink signal and 5G uplink signal to the pRRU.
4. The frequency shifting distributed near-end machine of claim 1, wherein the first frequency converter is further configured to frequency convert the upstream 5G intermediate frequency signal from the combiner to a frequency of a predetermined 5G upstream signal.
5. The frequency shift distribution near-end machine of claim 1 further comprising:
a wave trap, one end of which is configured to be connected with the 4G and 5G pRRU, and the other end of which is connected with the second frequency converter and is configured to filter the 4G signal and output a 5G signal; and
a second frequency converter, one end of which is connected with the wave trap and the other end of which is connected with the fourth port of the combiner, and is configured to convert the 5G downlink signal from the wave trap into a 5G intermediate frequency signal;
the combiner further comprises a fourth port configured to connect with the second frequency converter;
the combiner is configured to be conducted with the far-end connection port after combining a path connected with the amplifier, a path connected with the first frequency converter, a path connected with the second frequency converter, and paths connected with 2G and 3G RRUs.
6. The frequency shifting distributed near-end machine of claim 5, wherein the second frequency converter is further configured to frequency convert the upstream 5G intermediate frequency signal from the combiner to a frequency of a predetermined 5G upstream signal.
7. The frequency shift distribution near-end machine of claim 5 or 6, wherein the 4G and 5G pRRU is a 2T2R 4G and 5G multimode pRRU.
8. A frequency-shifted distribution system comprising:
the frequency shift distribution near-end machine of any one of claims 1 to 7; and
a frequency-shifted distributed remote unit comprising:
a far-end machine splitter configured to split a signal path connected to the frequency shift distribution near-end machine into a 4G signal path and a 5G signal path; and
a far-end frequency converter configured to be connected with the 5G signal port of the splitter and convert the downstream 5G intermediate frequency signal into a frequency of a predetermined 5G downstream signal.
9. The system of claim 8, wherein,
the far-end machine splitter is configured to split a signal path connected with the frequency shift distribution near-end machine into a 4G signal path and two 5G signal paths;
the remote frequency converter comprises:
a first remote-end machine frequency converter configured to convert the downlink 5G intermediate-frequency signal of the first path split by the remote-end machine splitter into a frequency of a predetermined downlink signal;
and the second remote-end machine frequency converter is configured to convert the downstream 5G intermediate-frequency signal of the second path split by the remote-end machine splitter into the frequency of a preset downstream signal.
10. The system of claim 8, further comprising:
and a remote radio unit pRRU of 4G and 5G configured to be connected to a splitter of the frequency shift distribution near-end machine.
11. The system of claim 10, further comprising:
2G and 3G RRUs configured to connect to a splitter of the frequency shift distribution near-end machine.
12. A signal frequency shift processing method, comprising:
splitting a signal path connected to the remote radio units pRRU of 4G and 5G into a 4G signal path and a 5G signal path by a splitter;
performing frequency conversion processing on the signals of the 5G signal path through a first frequency converter, wherein the frequency conversion processing comprises the step of converting the 5G downlink signals from the branching unit into 5G intermediate frequency signals;
and combining the 4G signal path with the 5G signal path passing through the first frequency converter through a combiner so as to interact with a frequency shift distribution remote terminal through the combined path, wherein the 4G signal path is amplified between the splitter and the combiner through an amplifier.
13. The method of claim 12, further comprising: and the signals of the 5G signal path are subjected to frequency conversion processing through a first frequency converter, and the uplink 5G intermediate frequency signals from the combiner are subjected to frequency conversion into the frequency of the preset 5G uplink signals.
14. The method of claim 12, further comprising:
filtering the 4G signal in a path connected with the 4G and 5G pRRU through a wave trap and outputting a 5G downlink signal;
converting the 5G downlink signal from the wave trap into a 5G intermediate frequency signal through a second frequency converter, and outputting the 5G intermediate frequency signal to the combiner;
combining the 5G signal path passing through the second frequency converter, the 4G signal path passing through the amplifier and the 5G signal path passing through the first frequency converter by a combiner so as to interact with a frequency shift distribution remote terminal through the combined path.
CN202110521774.9A 2021-05-13 2021-05-13 Frequency shift distribution near-end machine, system and signal frequency shift processing method Pending CN115347903A (en)

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CN202110521774.9A CN115347903A (en) 2021-05-13 2021-05-13 Frequency shift distribution near-end machine, system and signal frequency shift processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110521774.9A CN115347903A (en) 2021-05-13 2021-05-13 Frequency shift distribution near-end machine, system and signal frequency shift processing method

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CN115347903A true CN115347903A (en) 2022-11-15

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