CN210157391U - Distributed 5G gNB base station based on coaxial distribution network - Google Patents
Distributed 5G gNB base station based on coaxial distribution network Download PDFInfo
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Abstract
A distributed 5G gNB base station based on a coaxial distribution network comprises a front-end processing unit, the coaxial distribution network and a terminal processing unit; the front-end processing unit adopts a 5G access network interface of an NG-RAN architecture; the device is provided with a baseband processing unit and a clock synchronization module; the system is provided with a downlink processing module for framing and carrier modulation of a 5G downlink; an uplink processing module is arranged and used for demodulating a 5G uplink; a high-speed switch is arranged to separate out uplink signals; a first radio frequency processing module is arranged for frequency conversion of uplink and downlink carriers; the coaxial distribution network is used for transmitting 5G RF uplink and downlink signals and network management information; the terminal processing unit is provided with a second radio frequency processing module, and is used for carrying out frequency conversion processing on the 5G RF downlink signal received from the coaxial distribution network, recovering the 5G RF downlink signal into a 5G NR signal, and sending the 5G NR signal to the outside through a 5G signal transmitting interface arranged on the terminal processing unit. The utility model discloses an utilize coaxial distribution network to realize the quick cover of 5G signal.
Description
Technical Field
The utility model relates to a 5G network technology especially relates to a distributed 5GgNB basic station based on coaxial distribution network.
Background
Compared with the fourth generation mobile network, the 5G network has a more enhanced function in the practical application process in speed, and theoretically, the transmission speed of the 5G network can reach a double-digit GB value every second, and is hundreds of times as high as that of the 4G mobile network. The 5G network certainly has more obvious advantages in practical application in various fields of people's life, solves the problems which cannot be solved by the prior art and brings greater convenience.
The 5G network belongs to a new network mode at present, the popularity rate is still low, and further research and development are still needed. In 5G deployment and network coverage, since the spectrum of the 5G NR signal is a high-frequency radio frequency signal, the signal wall-through capability is very poor, so if the 5G network needs to better cover all locations needing coverage, such as business areas, residential areas, etc., if the 5G network is in a residential area, a feeder system or a large number of NG-gNB base stations need to be deployed to meet the network coverage requirement. However, such an arrangement inevitably brings large arrangement cost, and is not beneficial to the overall coverage and popularization of the 5G network.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a distributed 5G gNB basic station based on coaxial distribution network, realize the large tracts of land of 5G network and cover fast.
The technical solution of the utility model is that:
a distributed 5G gbb base station based on a coaxial distribution network, comprising: a front-end processing unit, a coaxial distribution network and a terminal processing unit;
the front-end processing unit adopts a 5G access network interface of an NG-RAN framework, is provided with a 5G standard NG interface to be connected with a 5G core network, and is provided with a 5G standard Xn interface to be connected with other 5G gNB base stations; the front-end processing unit:
the system comprises a baseband processing unit and a clock synchronization module, wherein the baseband processing unit adopts a 5G user plane protocol and a control plane protocol of a standard 5G gNB base station, and the clock synchronization module is used for extracting a clock from a 5G core network and synchronizing clocks of modules of a front-end processing unit; the system is provided with a downlink processing module for framing and carrier modulation of a 5G downlink;
an uplink processing module is arranged and used for demodulating a 5G uplink;
a high-speed switch is arranged to separate uplink signals for the 5G TDD uplink carrier according to uplink and downlink time slices;
the first radio frequency processing module is used for frequency conversion of uplink and downlink carriers;
the coaxial distribution network is configured to provide a coaxial distribution network,
the 5G RF uplink and downlink signals are used for being transmitted between the front-end processing unit and the terminal processing unit, and network management information is used for being transmitted between the front-end processing unit and the terminal processing unit;
the terminal processing unit is used for processing the terminal,
the second radio frequency processing module is used for carrying out frequency conversion processing on the 5G RF downlink signal received from the coaxial distribution network through clock synchronization so as to recover the signal into a 5G NR signal, and the signal is sent out through a 5G signal transmitting interface arranged on the terminal processing unit; a receiving interface of the terminal processing unit receives a 5G NR user signal in the air and a 5G NR downlink signal coupled by a transmitting interface, and for the 5G FDD NR signal, a second radio frequency processing module of the terminal processing unit filters the coupled 5G NR downlink carrier and reserves a 5G FDD NR uplink carrier; for a 5G TDD NR signal, the user signal and the coupled signal together form a 5G TDD NR uplink carrier. And the 5G NR uplink carrier waves are subjected to frequency conversion by a second radio frequency processing module of the terminal processing unit to form a 5G RF uplink signal.
The distributed 5G gbb base station based on the coaxial distribution network comprises a front-end processing unit and a plurality of terminal processing units; a plurality of the terminal processing units are connected with the front end processing unit via the coaxial distribution network.
The distributed 5G gbb base station based on the coaxial distribution network, wherein the 5G signal transmitting interface is a 5G signal transmitting antenna or a network interface device.
The distributed 5G gbb base station based on the coaxial distribution network, wherein the terminal processing unit is provided with a 5G signal receiving interface, and the 5G signal receiving interface receives a 5G NR signal; the first radio frequency processing module and the second radio frequency processing module are both provided with an up-conversion module and a down-conversion module.
The distributed 5G gbb base station based on the coaxial distribution network, wherein the 5G signal receiving interface is a 5G signal receiving antenna or a network interface device.
The distributed 5G gbb base station based on the coaxial distribution network, wherein the front-end processing unit is provided with a first network management module for receiving the time synchronization instruction to control the network management and the network management information transmission of the front-end processing unit and the terminal processing unit; the first network management module is connected with the first radio frequency processing module and the coaxial distribution network; the terminal processing unit is provided with a second network management module which is used for realizing a network management function in cooperation with the first network management module of the front-end processing unit; .
The distributed 5G gbb base station based on the coaxial distribution network, wherein the front-end processing unit and the terminal processing unit are both provided with a central processing module for scheduling and managing modules of the front-end processing unit and the terminal processing unit; the first network management module or the second network management module is respectively connected with the first radio frequency processing module or the second radio frequency processing module through the central processing module.
The distributed 5G gbb base station based on the coaxial distribution network is described above, wherein the frequency of the 5G RF signal is a frequency spectrum autonomously planned by an operator between 50MHz and 1000 MHz.
The distributed 5G gbb base station based on the coaxial distribution network is described above, wherein the frequency of the 5G RF signal is 900 MHz.
From the above description, the present invention has the following advantages:
the utility model discloses utilize 5G signal synchronization technique, NR signal with 5G TDD is at the front end processing unit, press the FDD signal between coaxial distribution network and the terminal processing unit, and through down the frequency conversion, be not suitable for transmitting the radio frequency carrier that 5G NR carrier wave becomes can be at cable television network transmission at cable television network, utilize cable television network to transmit, resume into 5G TDD NR signal to aerial transmission at cable television network end with the FDD signal, realize the low-cost quick cover of 5G signal. The utility model discloses support 5G TDD channel, also support 5G FDD channel, make 5G signal processing more comprehensive.
Drawings
FIG. 1 is a schematic diagram of a conventional cable TV passive coaxial distribution network;
FIG. 2 is a schematic view of a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a front-end processing unit according to a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of a terminal processing unit according to a preferred embodiment of the present invention.
The utility model discloses a reference number explains:
1: coaxial distribution network 2: the front-end processing unit 21: baseband processing module
22: the clock synchronization module 23: the first radio frequency processing module 24: downlink processing module
25: the uplink processing module 26: the central processing module 27: first network management module
28: high-speed switch 29: frequency conversion module 3: terminal processing unit
31: the clock synchronization module 32: the second radio frequency processing module 33: frequency conversion module
34: the second network management module 35: the central processing module 4: 5G core network
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
The cable television coaxial distribution network enters thousands of households, 5G signals are transmitted through the cable television coaxial distribution network, and the scale coverage of the 5G signals, such as signal coverage of households, basements, floors, elevators and the like, can be quickly realized.
The utility model discloses utilize 5G NG-RAN basic framework, the radio frequency transmission characteristic of the coaxial distribution network of cable TV, radio frequency processing technique such as frequency conversion, the 5G radio frequency signal that will not be fit for the coaxial distribution network of cable TV to carry out the transmission, the spectrum carries out autonomic planning, it can transmit through the coaxial distribution network of cable TV to make it, at coaxial distribution network edge, carry out radio frequency processing such as frequency conversion, realize the recovery and the space of 5G NR signal and cover, the coverage cost of 5G NR signal has been reduced, the reliability that 5G NR signal covered has been improved.
In a preferred embodiment of the present invention, please refer to fig. 1 to 3, the distributed 5G gbb base station based on the coaxial distribution network of the present invention includes: a front-end processing unit 2, a coaxial distribution network 1 and a terminal processing unit; the front-end processing unit 2 adopts a 5G access network interface of an NG-RAN framework, is provided with a 5G standard NG interface connected with a 5G core network 4, and is provided with a 5G standard Xn interface connected with other 5G gNB base stations; the front-end processing unit 2:
a baseband processing unit adopting a 5G user plane protocol and a control plane protocol of a standard 5G gNB base station and a clock synchronization module 22 are arranged and used for extracting a clock from a 5G core network 4 and synchronizing the clocks of all modules of the front-end processing unit 2; a downlink processing module 24 is provided for framing and carrier modulation of the 5G downlink;
an uplink processing module 25 is provided for demodulation of the 5G uplink;
a high-speed switch 28 is arranged to separate uplink signals for the 5G TDD uplink carrier according to uplink and downlink time slices;
the first radio frequency processing module is used for frequency conversion of uplink and downlink carriers, so that the uplink and downlink carriers conform to the frequency planned by an operator;
the coaxial distribution network 1 is configured to transmit the 5G RF uplink and downlink signals between the front-end processing unit 2 and the terminal processing unit, and to transmit network management information of the front-end processing unit 2 and the terminal processing unit;
the terminal processing unit is provided with a second radio frequency processing module, and the second radio frequency processing module is used for performing frequency conversion processing on the 5G RF downlink signal received from the coaxial distribution network 1 through clock synchronization to recover the 5G RF downlink signal into a 5G NR signal, and sending the 5G NR signal to the outside through a 5G signal transmitting interface arranged on the terminal processing unit; a receiving interface of the terminal processing unit receives a 5G NR user signal in the air and a 5G NR downlink signal coupled by a transmitting interface, and for the 5G FDD NR signal, a second radio frequency processing module of the terminal processing unit filters the coupled 5G NR downlink carrier and reserves a 5G FDD NR uplink carrier; for a 5G TDD NR signal, the user signal and the coupled signal together form a 5G TDD NR uplink carrier. And the 5G NR uplink carrier waves are subjected to frequency conversion by a second radio frequency processing module of the terminal processing unit to form a 5G RF uplink signal.
The utility model discloses a front end processing unit 2 of distributed 5G gNB basic station based on coaxial distribution network is the same with the 5G gNB equipment of standard, follows NG-RAN's basic framework, links to each other with 5G core network 4 between through the NG interface of 5G standard, links to each other with other 5G gNB between through the Xn interface of 5G standard. The utility model discloses a front end processing unit 2 of distributed 5GgNB basic station based on coaxial distribution network accomplishes 5G user plane and control surface function the same with the 5G gNB equipment of standard.
The utility model discloses a front end processing unit 2 of distributed 5G gNB basic station based on coaxial distribution network supports the spectrum setting that the user independently defined 5G RF, and this spectrum frequency setting is relevant with the 5G frequency spectrum resource bandwidth of the 5G operator who uses this system, if support 50MHz, 100MHz, 200MHz spectrum bandwidth etc.; the spectral frequency setting is suitable for cable television coaxial distribution network 1 transmission, such as 900 MHz.
The utility model discloses a distributed 5G gNB basic station adopts the coaxial distribution network of cable TV based on coaxial distribution network, and this network requires coaxial distribution network 1 to adopt N0The structure is that a passive coaxial distribution network is adopted, the network bears the existing cable television service and broadband service through frequency division multiplexing, and the cable television service, the broadband service and the 5G service are planned by cable television operators to comprehensively plan the frequency resources of various services.
As described above, the distributed 5G gbb base station based on the coaxial distribution network of the present invention, in its preferred embodiment, includes a front-end processing unit 2 and a plurality of terminal processing units; a plurality of the terminal processing units are connected to the front-end processing unit 2 via the coaxial distribution network 1. The utility model discloses a terminal processing unit based on coaxial distribution network's distributing type 5G gNB basic station sets up in the place that the network edge needs 5G signal to cover, like user's family, basement, elevator room etc.. With the one-to-many arrangement, the arrangement of distributed 5G gbb base stations can be realized with the coaxial distribution network 1 for cable television.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, the 5G signal transmission interface is a 5G signal transmission antenna or a network interface device.
The terminal processing unit performs radio frequency processing such as frequency conversion on the 5G RF signal of the autonomous planned spectrum from the distributed 5G gbb front-end processing unit 2 to form a 5G NR signal, the 5G NR signal is transmitted to the air through the transmitting antenna, the 5G NR signal of the 5G user terminal is received through the receiving antenna, the uplink 5G NR signal is subjected to radio frequency processing such as frequency conversion, and the uplink 5G NR signal is converted into an autonomous planned 5G RF signal and transmitted to the 5G gbb front-end processing unit 2 through the distribution network.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, the terminal processing unit is provided with a 5G signal receiving interface, and the 5G signal receiving interface receives a 5G NR signal; the first radio frequency processing module 23 and the second radio frequency processing module are both provided with frequency conversion modules 29 and 33, including an up-conversion module and a down-conversion module.
As described above, in addition to processing and transmitting the downlink signal acquired from the 5G core network 4, the present invention can also process the 5G signal acquired by the terminal processing unit as shown in fig. 4, so that the signal becomes an uplink signal and is transmitted to the front-end processing unit 2 for processing. The terminal processing unit receives an air 5G NR user signal and a 5G NR downlink signal coupled by a transmitting interface, and for a 5G FDD NR signal, the second radio frequency processing module filters the 5G NR downlink carrier coupled by the terminal processing unit and reserves a 5G FDD NR uplink carrier; for the 5G TDD NR signal, the user signal and the coupling signal together form a 5G TDD NR uplink carrier RF uplink signal, which is transmitted to the front-end processing unit 2 via the coaxial distribution network 1, the 5G TDD uplink carrier is separated into uplink carriers according to uplink and downlink time slices through the high-speed switch 28 provided in the front-end processing unit 2, demodulated by the uplink signal processing module, and the baseband processing module 21 performs uplink control and user plane protocol processing, and transmits the uplink carriers to the 5G core network 4 via the NG interface or transmits the uplink carriers to other 5G gbb base stations via the Xn interface.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, the 5G signal receiving interface is a 5G signal receiving antenna or a network interface device. Of course, the 5G signal receiving interface may be the same device as the 5G signal transmitting interface, so as to implement the functions of transmitting and receiving.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, as shown in fig. 3 and fig. 4, the front-end processing unit 2 and the terminal processing unit are provided with the first network management module 27 for receiving time synchronization and network management; the first network management module 27 is connected to the first rf processing module 23 and the coaxial distribution network 1.
The front-end processing unit 2 and the terminal processing unit are provided with clock synchronization modules 22 and 31 for performing time synchronization and controlling the frequency precision of up-down frequency conversion of the terminal processing unit; in the front-end processing unit 2, the first network management module 27 is connected to the clock synchronization module 22.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, the front-end processing unit 2 and the terminal processing unit are provided with central processing modules 26 and 35, and the first network management module 27 or the second network management module 34 is connected to the first rf processing module 23 or the second rf processing module via the central processing modules 26 and 35, respectively. The radio frequency processing operations such as frequency conversion of the uplink and downlink signals are controlled by the central processing modules 26, 35.
The utility model discloses a distributing type 5G gNB's basic station based on coaxial distribution network, through adopting above-mentioned distributing type 5G gNB basic station based on coaxial distribution network, regard as the coaxial distribution network of cable TV a part of basic station, simultaneously, the front end processing unit 2 and the 5G core network 4 of this distributing type basic station are connected, and the terminal processing unit that realizes this basic station through coaxial distribution network 1 directly arranges in the position that needs 5G network to cover, realizes 5G network's comprehensive quick cover.
As described above, in the preferred embodiment of the distributed 5G gbb implementation method based on the coaxial distribution network of the present invention, the frequency of the 5G FDD RF signal is between 50MHz and 1000 MHz. The utility model discloses a coaxial distribution network 1 of cable TV is as the intermediate junction part, and the cable TV optical transmitter and receiver carries out photoelectric conversion with the cable TV signal that comes from optic fibre, becomes RF signal and transmits in coaxial distribution network 1, and the frequency of transmission is mainly at 5 ~ 1100 MHz.
As described above, in the preferred embodiment of the distributed 5G gbb base station based on the coaxial distribution network of the present invention, the frequency of the 5G FDD RF signal is 900 MHz. The utility model discloses a distributed 5G gNB basic station based on coaxial distribution network supports the spectrum setting of user autonomous definition 5G RF, and this spectrum bandwidth setting is relevant with the 5G spectrum resource of the 5G operator who uses this system, if support 50MHz, 100MHz, 200MHz etc.; the spectral frequency setting is suitable for cable television coaxial distribution network 1 transmission, such as 900 MHz.
The following is a detailed description of a preferred embodiment:
the utility model discloses a passive coaxial distribution network of cable TV, as shown in fig. 1, constitute by cable TV optical transmitter and receiver, coaxial distribution system, cable TV optical transmitter and receiver carries out photoelectric conversion with the cable TV signal that comes from optic fibre, becomes RF signal and transmits in coaxial distribution network. The transmission frequency is mainly 5-1000 MHz.
The utility model discloses a distributed 5G gNB basic station can divide into three domain, IP domain, 5G RF domain, 5G NR domain. In the IP domain, the front-end processing unit 2 is connected with a 5G core network 4 through an IP network, and passes through an NG interface and an X of a 5G standardnThe interface is connected with the 5G core network 4 and other 5G gNB equipment to complete the 5G gNBUser plane, control plane related functions. The 5G RF domain completes the relevant 5G baseband processing, and during the radio frequency processing, 5G FDD channels and 5G uplink and downlink channels are formed according to autonomous spectrum planning, and 5G TDD channels and 5G downlink channels are formed by independently combining and modulating 5G downlinks, and the downlink channels are subjected to power amplification and injected into a cable television coaxial distribution network. In the 5G NR domain, the terminal processing unit converts the frequency of the downlink signal to recover to a 5G FDD or TDDNR downlink signal, and transmits the downlink signal to the air through a transmitting antenna. On the other hand, the user 5G FDD or TDD uplink signal from the receiving antenna may be converted and amplified according to the spectrum planned autonomously, and transmitted to the front-end processing unit 2. For a 5G FDD channel, a terminal processing unit filters a downlink signal coupled into a 5G uplink channel, and for a 5G TDD channel, a front-end processing module separates a 5G uplink carrier wave through a high-speed switch 28 according to uplink and downlink time slices, so that transmission of the 5G gNB in a distributed network according to autonomous spectrum planning is realized, and coverage of the 5G NR signal in the air according to an operator 5G NR resource spectrum is realized through edge radio frequency processing.
The signal processing flow is as follows:
taking the spectrum resource of a 5G operator as an example, the processing flow of the signal is given. If the operator obtains 4950-. The frequency spectrum of the 5G service planned by the cable television network operator is 900 MHz-1000 MHz.
1. The utility model discloses a front end processing unit 2 deploys at the district unit, upwards inserts 5G core network with the IP mode through optic fibre, and front end processing unit 2's RF interface inserts the passive coaxial distribution network of cable TV, and terminal processing unit places a plurality of places that need cover 5G signal such as user's family, basement, corridor.
2. The front-end processing unit 2 communicates with the 5G core network and other gNB devices through NG and Xn interfaces, and performs clock synchronization with the 5G network.
3. The baseband processing module 21 of the front-end processing unit 2 performs tasks such as scheduling, encoding, framing and the like on the 5G signal, the downlink processing module 24 completes tasks such as subcarrier management, radio frequency modulation and the like, and the first radio frequency processing module 23 converts the 5G downlink signal into an autonomously planned frequency f1 to form a 5G downlink RF signal f1, wherein the frequency is 900MHz, and the bandwidth is 50 MHz. The radio frequency amplification module is also arranged to amplify the signal so as to offset the distribution loss and the transmission loss of the cable television coaxial distribution network.
4. The radio frequency f1 signal is connected to the cable television coaxial distribution network and transmitted to the terminal processing unit. The signal loss is about 35 dB.
5. The terminal processing unit filters, converts and amplifies the f1 signal, transmits the signal to the air through the transmitting antenna, the frequency-converted signal is changed into 4.950GHz with the bandwidth of 50MHz, and the requirement of 5G TDD NR signal is met.
6. The terminal processing unit receives the user 5G TDD NR signal from the receiving antenna, and the signal is converted into an uplink f2 signal through filtering, amplification and frequency conversion, wherein the frequency of the f2 signal is 850MHz, and the bandwidth is 50 MHz. The uplink f2 signal includes the 5G downlink and user uplink frequency converted signals coupled by the receiving antenna to the transmitting antenna.
7. The f2 signal is fed into front-end processing unit 2 through a cable coaxial distribution network.
8. The f2 signal passes through the high-speed switch 28 of the front-end processing unit 2 to be in a closed state for the uplink path in the downlink time slice, so that the 5G downlink signal coupled into by the transmitting antenna is closed, the user uplink signal is left, and the processing of the signal is completed by the uplink processing module 25.
The utility model discloses an above-mentioned preferred embodiment has accomplished through above-mentioned signal processing the utility model discloses a signal transmission and processing based on coaxial distribution network's distributing type 5G gNB basic station.
The front-end processing unit 2 and the terminal processing unit are in a one-to-many relationship, but signals all come from the same 5G AAU device (front-end processing unit), and a 5G mobile subscriber only has one subscriber to communicate at a certain moment, so that only one of the plurality of terminal processing units has signal transmission on a backhaul time slice, and therefore, the problem of signal collision of the plurality of terminal processing units at the front-end processing unit does not exist.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (9)
1. A distributed 5G gNB base station based on a coaxial distribution network, comprising: a front-end processing unit, a coaxial distribution network and a terminal processing unit;
the front-end processing unit adopts a 5G access network interface of an NG-RAN framework, is provided with a 5G standard NG interface to be connected with a 5G core network, and is provided with a 5G standard Xn interface to be connected with other 5G gNB base stations; the front-end processing unit:
the system comprises a baseband processing unit and a clock synchronization module, wherein the baseband processing unit adopts a 5G user plane protocol and a control plane protocol of a standard 5G gNB base station, and the clock synchronization module is used for extracting a clock from a 5G core network and synchronizing clocks of modules of a front-end processing unit; the system is provided with a downlink processing module for framing and carrier modulation of a 5G downlink;
an uplink processing module is arranged and used for demodulating a 5G uplink;
a high-speed switch is arranged to separate uplink signals for the 5G TDD uplink carrier according to uplink and downlink time slices;
the first radio frequency processing module is used for frequency conversion of uplink and downlink carriers;
the coaxial distribution network is configured to provide a coaxial distribution network,
the 5G RF uplink and downlink signals are used for being transmitted between the front-end processing unit and the terminal processing unit, and network management information is used for being transmitted between the front-end processing unit and the terminal processing unit;
the terminal processing unit is used for processing the terminal,
the second radio frequency processing module is used for carrying out frequency conversion processing on the 5G RF downlink signal received from the coaxial distribution network through clock synchronization so as to recover the signal into a 5G NR signal, and the signal is sent out through a 5G signal transmitting interface arranged on the terminal processing unit; a receiving interface of the terminal processing unit receives a 5G NR user signal in the air and a 5G NR downlink signal coupled by a transmitting interface, and for the 5G FDD NR signal, a second radio frequency processing module of the terminal processing unit filters the coupled 5G NR downlink carrier and reserves a 5G FDD NR uplink carrier; for the 5G TDD NR signal, the user signal and the coupling signal form a 5G TDD NR uplink carrier; and the 5G NR uplink carrier waves are subjected to frequency conversion by a second radio frequency processing module of the terminal processing unit to form a 5G RF uplink signal.
2. The distributed 5G gbb base station based on coaxial distribution network of claim 1, comprising a front-end processing unit and a plurality of terminal processing units; a plurality of the terminal processing units are connected with the front end processing unit via the coaxial distribution network.
3. The distributed coaxial distribution network-based 5G gNB base station of claim 2, wherein the 5G signal transmission interface is a 5G signal transmission antenna or a network interface device.
4. The distributed coaxial distribution network-based 5G gNB base station of claim 3, wherein the terminal processing unit is provided with a 5G signal receiving interface, the 5G signal receiving interface receiving a 5G NR signal; the first radio frequency processing module and the second radio frequency processing module are both provided with an up-conversion module and a down-conversion module.
5. The distributed coaxial distribution network-based 5G gNB base station of claim 4, wherein the 5G signal reception interface is a 5G signal reception antenna or a network interface device.
6. The distributed 5G gNB base station based on the coaxial distribution network according to any one of claims 1 to 4, wherein the front-end processing unit is provided with a first network management module for receiving the time synchronization command to control the network management and network management information transmission of the front-end processing unit and the terminal processing unit; the first network management module is connected with the first radio frequency processing module and the coaxial distribution network; the terminal processing unit is provided with a second network management module which is used for cooperating with the first network management module of the front-end processing unit to realize the network management function.
7. The distributed 5G gNB base station based on a coaxial distribution network as claimed in claim 6, wherein the front end processing unit and the terminal processing unit are each provided with a central processing module for scheduling and management between the modules of the front end processing unit and the terminal processing unit; the first network management module or the second network management module is respectively connected with the first radio frequency processing module or the second radio frequency processing module through the central processing module.
8. The distributed coaxial distribution network-based 5G gNB base station of claim 7, wherein the 5GRF signal frequency is an operator-independently planned spectrum between 50MHz and 1000 MHz.
9. The distributed coaxial distribution network-based 5G gbb base station of claim 8, wherein the 5GRF signal frequency is 900 MHz.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401976A (en) * | 2019-08-27 | 2019-11-01 | 欧阳世杰 | Based on the base station distributed 5G gNB of Coaxial distribution network network and implementation method |
| CN112637971A (en) * | 2020-12-03 | 2021-04-09 | 赛特斯信息科技股份有限公司 | Distributed 5G gNB base station based on coaxial distribution network and implementation method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401976A (en) * | 2019-08-27 | 2019-11-01 | 欧阳世杰 | Based on the base station distributed 5G gNB of Coaxial distribution network network and implementation method |
| CN112637971A (en) * | 2020-12-03 | 2021-04-09 | 赛特斯信息科技股份有限公司 | Distributed 5G gNB base station based on coaxial distribution network and implementation method |
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