CN212259349U - System for deploying 5G small base station based on HFC network - Google Patents
System for deploying 5G small base station based on HFC network Download PDFInfo
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- CN212259349U CN212259349U CN202021030638.7U CN202021030638U CN212259349U CN 212259349 U CN212259349 U CN 212259349U CN 202021030638 U CN202021030638 U CN 202021030638U CN 212259349 U CN212259349 U CN 212259349U
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Abstract
The utility model discloses a system based on HFC network deploys 5G little basic station, the system, include: a first network architecture and a second network architecture; the first network architecture is associated with an HFC network and a 5G core network; the first network architecture is used for transmitting a first network signal to the second network architecture and/or transmitting a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture; and the second network architecture is used for providing 5G network service for the 5G terminal.
Description
Technical Field
The utility model relates to a communication technology especially relates to a system based on HFC network deploys 5G little basic station.
Background
The fifth Generation mobile communication technology (5th Generation mobile networks or 5th Generation with less systems, 5th-Generation, 5G or 5G technology for short) is the latest Generation cellular mobile communication technology, and is also an extension behind the 4G (LTE-A, WiMax), 3G (UMTS, LTE) and 2G (gsm) systems. The performance goals of 5G are high data rates, reduced latency, energy savings, reduced cost, increased system capacity, and large-scale device connectivity.
To meet the high capacity and high rate requirements of 5G, 3GPP (3rd Generation Partnership Project) has defined an air interface for 5G called NR (New Radio), which is divided into two bands, FR1(Frequency Range) Frequency Range of 600MHz to 6GHz and FR2 is millimeter band 24-86 GHz.
The millimeter wave has short wavelength, so that the penetration capability is extremely poor and the millimeter wave has high fading characteristic. The signal range that the macro base station can cover becomes very limited in 5G. How to realize 5G coverage in an area which cannot be covered by a macro base station or is densely populated is a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
For solving the current technical problem who exists, the embodiment of the utility model provides a system based on HFC network deploys 5G little basic stations.
The technical scheme of the utility model is realized like this:
the embodiment of the utility model provides a system based on HFC network deploys 5G little basic station, the system includes: a first network architecture and a second network architecture;
the first network architecture is associated with an HFC network and a 5G core network; the first network architecture is used for transmitting a first network signal to the second network architecture and/or transmitting a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture;
the second network architecture is used for providing 5G network services for the 5G terminal;
wherein the first network architecture comprises: a CMTS and a CM; the second network architecture, comprising: and 5G small base stations.
In the above scheme, the 5G core network is connected to the CMTS through an IP network;
the CMTS and the CM communicating over an HFC network;
the CM is configured to receive the first network signal from a 5G core network, demodulate the first network signal, and transmit the demodulated first network signal to the second network architecture; and the number of the first and second groups,
and receiving the second network signal from the second network architecture, and modulating the second network signal and transmitting the modulated second network signal to the CMTS.
In the above scheme, the first network signal is a fronthaul signal from a 5G core network;
the second network signal is a return signal from the 5G small base station;
the CM is used for receiving the forwarding signal from the HFC network, demodulating the forwarding signal and transmitting the demodulated forwarding signal to the second network architecture; and the number of the first and second groups,
and receiving the backhaul signal from the second network architecture, and modulating the backhaul signal for transmission to the CMTS.
In the foregoing solution, the first network architecture further includes: a power inserter;
the power inserter is used for connecting a centralized power supply device and supplying power supply to the CM through the centralized power supply device; and the number of the first and second groups,
and communicating the HFC network and the CM to realize network signal transmission between the CM and the HFC network.
In the foregoing solution, the CM includes: a communication interface;
the communication interface is used for providing power supply for the 5G small cell base station equipment;
and the network signal transmission is carried out with the 5G small base station equipment.
In the above solution, the communication interface includes: an RJ45 interface;
and the RJ45 interface is used for carrying out network signal transmission with 5G small base station equipment and providing power supply.
In the above solution, the communication interface includes: a small form factor pluggable (SFP) optical interface;
the SFP optical interface is used as an optical interface provided for the 5G small cell base station device, and is used for performing network signal transmission with the 5G small cell base station device.
In the above scheme, the CM further includes: a PSU power supply device;
the PSU power supply device is connected with the 5G small base station equipment through the RJ45 interface and used for providing power supply for the 5G small base station equipment.
In the above scheme, the CM further includes: a PSU power supply device;
the PSU power supply device is connected with the 5G small base station equipment through wiring and used for providing power supply for the 5G small base station equipment.
The embodiment of the utility model provides a system based on HFC network deploys 5G little basic station, include: a first network architecture and a second network architecture; the first network architecture is associated with a Hybrid Fiber-coax (HFC) network and a 5G core network; the first network architecture is used for transmitting a first network signal to the second network architecture and/or transmitting a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture; the second network architecture is used for providing 5G network services; wherein the first network architecture comprises: a CMTS and a CM; the second network architecture, comprising: and 5G small base stations. The utility model discloses in the scheme, realize 5G network deployment based on the HFC network, for 5G's perpendicular application provides 5G's technical support, based on the HFC network deployment 5G network simultaneously, provide and deploy the convenience and deploy the comprehensiveness.
Drawings
Fig. 1 is a schematic diagram of a system for deploying a 5G small base station based on an HFC network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another system for deploying a 5G small base station based on an HFC network according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another system for deploying a 5G small cell based on an HFC network according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Fig. 1 is a schematic structural diagram of a system for deploying a 5G small base station based on an HFC network according to an embodiment of the present invention; as shown in fig. 1, the 5G network system, the first network architecture and the second network architecture;
the first network architecture is used for transmitting a first network signal to the second network architecture and/or transmitting a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture;
and the second network architecture is used for providing 5G network service for the 5G terminal.
Here, the 5G terminal may include a mobile phone, a tablet computer, and the like using 5G.
Here, the second network architecture provides a 5G network service so that a 5G terminal can enjoy the 5G service.
The first network architecture is associated with an HFC network; the first network architecture is also associated with a 5G core network.
Specifically, the first network architecture includes: cable Modem Termination Systems (CMTS) and Cable Modems (CM);
the 5G core network is connected with the CMTS through an IP network;
the CMTS and the CM communicate over an HFC network.
The CM can provide a forward transmission and return transmission communication channel for the 5G small base station equipment, so that the 5G small base station can communicate with a 5G core network, and the purpose of deploying 5G services is achieved.
Specifically, the CM is configured to receive the first network signal from a 5G core network, demodulate the first network signal, and transmit the demodulated first network signal to the second network architecture; and the number of the first and second groups,
and receiving the second network signal from the second network architecture, and modulating the second network signal and transmitting the modulated second network signal to the CMTS.
Specifically, the first network signal is a fronthaul signal from a 5G core network;
the second network signal is a return signal from the 5G small base station;
the CM is used for receiving the forwarding signal from the HFC network, demodulating the forwarding signal and transmitting the demodulated forwarding signal to the second network architecture; and the number of the first and second groups,
and receiving the backhaul signal from the second network architecture, and modulating the backhaul signal for transmission to the CMTS.
Here, the CM receives the forwarding signal from the HFC network, and it is understood that the forwarding signal is sent from the 5G core network and then reaches the CMTS via the IP network, and the CMTS and the CM communicate via the HFC network, that is, the forwarding signal reaches the CM via the HFC network;
the CM modulates the return signal and transmits the modulated return signal to the CMTS, and the modulated return signal can be further understood to reach a 5G core network after passing through an IP network;
that is to say, the 5G small cell can communicate with the 5G core network through the above system for deploying 5G small cell based on the HFC network, so as to achieve the purpose of deploying 5G services.
Specifically, the first network architecture further includes: a power inserter;
the power inserter is used for connecting a centralized power supply device and supplying power supply to the CM through the centralized power supply device; and communicating the HFC network and the CM to realize network signal transmission between the CM and the HFC network. With particular reference to fig. 2.
Here, the network signal transmission refers to the above-mentioned receiving the first network signal from the 5G core network by the CMTS, demodulating the first network signal and transmitting the demodulated first network signal to the second network architecture (here, the first network signal may be a first Radio Frequency (RF) signal, and the demodulated first network signal may be a digital signal and is transmitted to the second network architecture); and receiving the second network signal from the second network architecture, modulating the second network signal, and transmitting the modulated second network signal to a CMTS (where the second network signal is a backhaul signal, that is, data uploaded by a terminal, and where the uploaded data is modulated into a second radio frequency signal and transmitted to the CMTS).
Further, the CM interfaces with CMTS head-end equipment and 5G small base station equipment; the CM performs bidirectional data interaction processing with CMTS head-end equipment upwards, and provides network access and signal return for 5G small base station equipment downwards.
Here, the centralized power supply provides 40-90VAC power.
The CM supports a DOCSIS protocol, is used for analyzing the DOCSIS protocol in an HFC network, and can provide a downlink connection rate of 10Gbps and an uplink connection rate of 2Gbps at most. Along with DOCSIS technical evolution, the utility model discloses the system that the application provided can provide higher communication capacity.
In view of the system needs to implement power supply and signal transmission functions for CM and 5G small cell site equipment, the embodiment of the present invention employs a RF signal and AC power hybrid transmission technology, and the CM can provide 2 types of signal connections and 2 types of power supply for 5G small cell site equipment.
In practical application, the CM includes: a radio frequency interface;
the radio frequency interface is used for receiving the first network signal and/or sending a second radio frequency signal modulated by the second network signal, and receiving an AC power supply for supplying power to the CM.
Bidirectional network connection is realized through the CM, a forward downlink radio frequency signal (FWD) (namely a first network signal) is demodulated into a digital signal through a CPU of the CM and is sent to 5G small base station equipment, and therefore downlink network service is provided for a user terminal;
correspondingly, the uploaded data of the user terminal is fed back from the 5G small cell base station device through the CM, modulated into a reverse uplink radio frequency signal (i.e., the second network signal from the 5G small cell base station is modulated into a reverse uplink radio frequency signal, that is, the uploaded data from the 5G small cell base station is modulated into a second radio frequency signal), and sent to the CMTS, and finally enters the 5G core network.
The AC power supply is a sinusoidal or quasi-square wave of 40-90V and 50/60Hz, and is converted into a DC 12V, DC 54V, AC 110V/220V power supply after being processed by a Power Supply Unit (PSU) of the CM; wherein the DC 12V is used to power the CM; the DC 54V is used for supplying power to the POE of the CM, wherein the POE of the CM provides a direct current power supply for the 5G small base station equipment through a network cable; the AC 110V/220V is used for providing an alternating current power supply for 5G small base station equipment.
Considering that the CM needs to receive and transmit network signals (including the first network signal, the second network signal, the digital signal obtained by demodulating the first network signal, and the second radio frequency signal obtained by modulating the second network signal) and an AC power source, where the network signals and the AC power source are two different types of signals, but share one physical carrier, i.e., a coaxial cable, the network signals and the AC power source need to be separated, and each of the network signals and the AC power source does not affect each other.
Based on this, the CM further includes: a filter;
the filter is connected with the radio frequency interface and the communication interface; the filter is connected with the radio frequency interface and the communication interface of the CM, is used for separating network signals of the radio frequency interface and the communication interface from the AC power supply, and does not influence each other.
Correspondingly, a centralized power supply device needs to be deployed at the access front end of the CM equipment, and the network signals of the centralized power supply device and the HFC network are mixed by a power inserter and then transmitted to the CM.
Specifically, the CM includes: a communication interface;
the communication interface is used for providing power supply for the 5G small cell base station equipment; and the network signal transmission is carried out with the 5G small base station equipment.
Specifically, the communication interface is configured to output a digital signal (i.e., a digital signal obtained by demodulating a first network signal) to the 5G small cell base station device and/or receive a second network signal.
In one embodiment, the communication interface includes: an RJ45 interface;
and the RJ45 interface is used for carrying out network signal transmission with 5G small base station equipment and providing direct current power supply.
The RJ45 interface supports gigabit networks and network connection rates of 2.5 Gbps; and the POE standard defined by IEEE is supported, and the network signal can be provided for 5G small base station equipment, and meanwhile, power supply is also provided.
A separate power wiring can be omitted corresponding to when an RJ45 interface is employed. See in particular fig. 3.
In another embodiment, the communication interface includes: a Small Form Pluggable (SFP) optical interface;
the SFP optical interface realizes the ability of the CM to provide optical communication by inserting an adaptive optical module (designed according to requirements in advance) into the SFP interface.
The SFP optical interface is used as an optical interface provided for the 5G small base station equipment and supports the maximum 2.5Gbps connection rate.
The SFP optical interface is used for providing network connection and signal return for the 5G small base station equipment; namely for network signal transmission with the 5G small cell base station device.
The CM, further comprising: and the PSU power supply device is connected with the 5G small base station equipment (can be connected by independent wiring) and is used for providing 110V/220V alternating current power supply for the 5G small base station equipment. See in particular fig. 3.
When the SFP optical interface is adopted, the power supply can be provided by the CM device nearby when the 5G small base station device is deployed.
The SFP optical interface is realized by inserting the adaptive optical module into the SFP interface, and after the adaptive optical module is inserted into the SFP interface, optical network access and signal return are provided for the 5G small base station equipment.
The above two embodiments are 2 types of signal connections and 2 types of power supplies that the CM may have at the same time, or any one of them is adopted, which is not limited herein.
I.e., the communication interface of the CM, may include: at least one of an RJ45 interface, an SPF optical interface.
The wiring may be separately wired, and the 5G small cell base station device may be separately powered by another power supply device, which is not limited herein.
The network signal transmission through the RJ45 interface and the SFP optical interface means that:
receiving a first network signal (namely, a first radio frequency signal) through a radio frequency interface, demodulating the first network signal into a digital signal, and transmitting the digital signal to the second network architecture through an RJ45 interface or an SFP optical interface; and the number of the first and second groups,
and receiving upload data (namely the second network signal) from the second network architecture through an RJ45 interface or an SFP optical interface, modulating the upload data into a second radio frequency signal, transmitting the second radio frequency signal to the CMTS through a radio frequency interface, and finally entering a 5G core network.
The embodiment of the utility model provides a system based on HFC network deploys 5G little basic station is that the two-way HFC network of fully considering current broadcasting and TV field is perfect relatively and the wide basis of network coverage designs on, adopts the embodiment of the utility model provides a system based on HFC network deploys 5G little basic station has not only solved the high-speed low time delay's of 5G signal passback demand, has also provided 5G little basic station power supply's solution simultaneously to propose two kinds of butt joint 5G little basic station equipment's signal passback and power supply mode (specifically for two kinds of interfaces that figure 3 provided: RJ45, SPF optical interface).
Based on this, the embodiment of the present invention can deploy a 5G network by using a mature HFC network, and provide 5G technical support for vertical application of the 5G network. Here, the HFC network may provide a bidirectional network access capability, the DOCSIS 3.1 standard of the HFC network may provide transmission capabilities of 10Gbps downlink and 2Gbps uplink, and the FD (Full Duplex) 3.1 technology may provide a 10Gpbs communication service symmetric to the uplink and the downlink. Compared with other return modes, the method has the advantages of low cost, tailorability, power supply, easiness in development and usability; therefore, the 5G small base station equipment is deployed by fully utilizing the advantages of the conventional HFC network, the 5G network construction can be accelerated, and the high-speed and low-delay signal return of the 5G small base station equipment is realized by deploying the 5G small base station equipment based on the HFC network; sufficient power supply is provided for 5G small base station equipment; the radio frequency and power source mixed transmission technology.
The embodiment of the utility model provides a still provide a 5G network's implementation method, the method includes:
step 101, a first network architecture transmits a first network signal to a second network architecture, and/or transmits a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture; the first network architecture is associated with an HFC network and a 5G core network;
and 102, providing 5G network service for the 5G terminal by the second network architecture.
The above method and the architecture shown in fig. 1 are unified concepts, and refer to the content shown in fig. 1 specifically, which is not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A system for deploying 5G small cell sites based on an HFC network, the system comprising: a first network architecture and a second network architecture;
the first network architecture is associated with an HFC network and a 5G core network; the first network architecture is used for transmitting a first network signal to the second network architecture and/or transmitting a second network signal received from the second network architecture to a 5G core network; and providing power supply for the second network architecture;
the second network architecture is used for providing 5G network services for the 5G terminal;
wherein the first network architecture comprises: a cable modem termination system CMTS and a cable modem CM; the second network architecture, comprising: and 5G small base stations.
2. The system of claim 1, wherein a 5G core network is connected to the CMTS via an IP network;
the CMTS and the CM communicating over an HFC network;
the CM is configured to receive the first network signal from a 5G core network, demodulate the first network signal, and transmit the demodulated first network signal to the second network architecture; and the number of the first and second groups,
and receiving the second network signal from the second network architecture, and modulating the second network signal and transmitting the modulated second network signal to the CMTS.
3. The system of claim 2, wherein the first network signal is a fronthaul signal from a 5G core network;
the second network signal is a return signal from the 5G small base station;
the CM is used for receiving the forwarding signal from the HFC network, demodulating the forwarding signal and transmitting the demodulated forwarding signal to the second network architecture; and the number of the first and second groups,
and receiving the backhaul signal from the second network architecture, and modulating the backhaul signal for transmission to the CMTS.
4. The system of claim 3, wherein the first network architecture further comprises: a power inserter;
the power inserter is used for connecting a centralized power supply device and supplying power supply to the CM through the centralized power supply device; and the number of the first and second groups,
and communicating the HFC network and the CM to realize network signal transmission between the CM and the HFC network.
5. The system of claim 2, wherein the CM comprises: a communication interface;
the communication interface is used for providing power supply for the 5G small cell base station equipment;
and the network signal transmission is carried out with the 5G small base station equipment.
6. The system of claim 5, wherein the communication interface comprises: an RJ45 interface;
and the RJ45 interface is used for carrying out network signal transmission with 5G small base station equipment and providing power supply.
7. The system of claim 5, wherein the communication interface comprises: a small form factor pluggable (SFP) optical interface;
the SFP optical interface is used as an optical interface provided for the 5G small cell base station device, and is used for performing network signal transmission with the 5G small cell base station device.
8. The system of claim 6, wherein the CM further comprises: a PSU power supply device;
the PSU power supply device is connected with the 5G small base station equipment through the RJ45 interface and used for providing power supply for the 5G small base station equipment.
9. The system of claim 7, wherein the CM further comprises: a PSU power supply device;
the PSU power supply device is connected with the 5G small base station equipment through wiring and used for providing power supply for the 5G small base station equipment.
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| CN111556509A (en) * | 2020-06-10 | 2020-08-18 | 苏州摩联通信技术有限公司 | System for deploying 5G small base station based on HFC network and implementation method of 5G network |
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| CN111556509A (en) * | 2020-06-10 | 2020-08-18 | 苏州摩联通信技术有限公司 | System for deploying 5G small base station based on HFC network and implementation method of 5G network |
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