CN214675488U - Radio frequency coupling access double-carrier distributed base station system - Google Patents
Radio frequency coupling access double-carrier distributed base station system Download PDFInfo
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- CN214675488U CN214675488U CN202120831154.0U CN202120831154U CN214675488U CN 214675488 U CN214675488 U CN 214675488U CN 202120831154 U CN202120831154 U CN 202120831154U CN 214675488 U CN214675488 U CN 214675488U
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Abstract
The utility model provides a radio frequency coupling access double-carrier wave distributed base station system, which comprises a double-carrier wave host, a plurality of extension modules and a plurality of radio frequency modules which are connected in sequence; the dual-carrier host provides dual-frequency LTE carrier signal output through a first preset number of first interfaces and receives a radio frequency input signal; the extension module is connected with the first interface and used for forwarding the dual-frequency LTE carrier signals to a second interface with a second preset number and forwarding the signals input by the radio frequency to the dual-carrier host; the radio frequency module is connected with the second interface and used for receiving and transmitting the dual-frequency LTE carrier signal, receiving a radio frequency input signal and transmitting the signal to the extension module. The utility model discloses a two carrier wave distributing type base station systems that radio frequency coupling inserts can effectively improve signal transmission's coverage, simultaneously through supporting radio frequency input signal, realizes radio frequency wireless communication to supply radio frequency wireless communication's blind area, improve user's experience degree.
Description
Technical Field
The utility model relates to a mobile communication technology field particularly, relates to a double carrier wave distributing type basic station system that radio frequency coupling inserts.
Background
The existing base station system is generally a macro base station and a small base station, the macro base station has a wide output power range, but the signal penetration capability of large buildings such as buildings is poor, so the small base station is generally arranged in the large buildings. However, the small base stations have small power and small range, and the number of the small base stations required for deployment in a building is large, and in the process of practical application, signals cannot cover the whole building due to various reasons, so that the problem of low signal coverage rate in the building is caused, and the coverage cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a double carrier wave distributing type basic station system that radio frequency coupling inserts to effectively improve signal transmission's coverage, and supply radio frequency wireless communication's blind area, improve user's experience degree.
In order to achieve the above object, the utility model adopts the following technical scheme:
a radio frequency coupling accessed double-carrier distributed base station system comprises a double-carrier host, a plurality of extension modules and a plurality of radio frequency modules which are connected in sequence;
the dual-carrier host provides dual-frequency LTE carrier signal output through a first preset number of first interfaces and receives a radio frequency input signal;
the extension module is connected with the first interface and used for forwarding the dual-frequency LTE carrier signals to a second interface of a second preset number of extension modules and forwarding radio-frequency input signals to the dual-carrier host;
the radio frequency module is connected with the second interface and used for receiving and transmitting the dual-frequency LTE carrier signal, receiving a radio frequency input signal and transmitting the signal to the extension module.
Preferably, in the radio frequency coupled dual-carrier distributed base station system, the first interface is an SFP optical ethernet interface or an RJ45 electrical ethernet interface; the second interface is an SFP optical Ethernet interface or an RJ45 electric Ethernet interface;
the dual-carrier host, the expansion module and the radio frequency module are connected through an optical fiber or a network cable with a preset length in sequence.
Preferably, in the dual-carrier distributed base station system coupled by radio frequency, the dual-carrier host includes a radio frequency circuit;
the first signal processing unit is connected with the radio frequency circuit;
the microprocessor unit, the first baseband unit and the second baseband unit are connected with the first signal processing unit;
a switch unit connected to the microprocessor unit, the first baseband unit, and the second baseband unit;
the universal industrial personal computer unit is connected with the switch unit;
a first interface circuit connected to the first signal processing unit, the first baseband unit, the second baseband unit, and the switch unit.
Preferably, in the dual-carrier distributed base station system coupled by rf coupling, the rf circuit includes an AD9363 rf transceiver controller; the first signal processing unit comprises an XC7A75T-2FGG484I FPGA module; the microprocessor unit comprises an STM32F107RB chip; the first baseband unit and the second baseband unit comprise a BCM61755 baseband chip or a BCM61735 baseband chip; the switch unit comprises an RTL8367S-CG module; the universal industrial personal computer unit comprises an X86 universal industrial personal computer.
Preferably, in the radio frequency coupled access dual-carrier distributed base station system, the first interface circuit includes an SFP ethernet interface, an RJ45 ethernet interface, and a USIM card interface.
Preferably, in the radio frequency coupling accessed dual-carrier distributed base station system, the extension module includes a second signal processing unit;
a second interface circuit connected to the second signal processing unit;
and the POE power supply circuit is used for supplying power to the radio frequency module through a connecting wire.
Preferably, in the radio frequency coupling accessed dual-carrier distributed base station system, the second interface circuit includes an SFP optical ethernet interface and an RJ45 electrical ethernet interface.
Preferably, in the radio frequency coupling accessed dual-carrier distributed base station system, the second signal processing unit includes an XC7A3ST-2SCG325I FPGA module.
Preferably, in the radio frequency coupled access dual-carrier distributed base station system, the radio frequency module includes a third signal processing unit;
the third interface circuit and the radio frequency circuit are connected with the third signal processing unit;
and the POE power circuit is used for receiving the electric energy transmitted by the expansion module through a connecting wire.
Preferably, in the radio frequency coupling accessed dual-carrier distributed base station system, the third signal processing unit includes an XC7A3ST-2SCG325I FPGA module; the radio frequency circuit comprises an AD9363 radio frequency transceiver controller.
The utility model provides a radio frequency coupling access double-carrier wave distributed base station system, which comprises a double-carrier wave host, a plurality of extension modules and a plurality of radio frequency modules which are connected in sequence; the dual-carrier host provides dual-frequency LTE carrier signal output through a first preset number of first interfaces and receives a radio frequency input signal; the extension module is connected with the first interface and used for forwarding the dual-frequency LTE carrier signals to a second interface of a second preset number of extension modules and forwarding radio-frequency input signals to the dual-carrier host; the radio frequency module is connected with the second interface and used for receiving and transmitting the dual-frequency LTE carrier signal, receiving a radio frequency input signal and transmitting the signal to the extension module. The utility model discloses a two carrier wave distributing type base station systems that radio frequency coupling inserts establishes the base station system of distributing type through two carrier wave host computers, a plurality of extension module and a plurality of radio frequency module, can effectively improve signal transmission's coverage, simultaneously through supporting radio frequency input signal, realizes radio frequency wireless communication to supply radio frequency wireless communication's blind area, improve user's experience degree.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention. Like components are numbered similarly in the various figures.
Fig. 1 is a schematic structural diagram of a radio frequency coupling access dual-carrier distributed base station system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a dual carrier host provided in embodiment 2 of the present invention;
fig. 3 is a distribution diagram of a dual carrier host structure according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of an expansion module provided in embodiment 3 of the present invention;
fig. 5 is a schematic structural diagram of a radio frequency module according to embodiment 4 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of a dual carrier distributed base station system for rf coupling access according to embodiment 1 of the present invention.
The dual-carrier distributed base station system 100 with rf coupling access includes a dual-carrier host 110, a plurality of expansion modules 120, and a plurality of rf modules 130, which are connected in sequence;
the embodiment of the utility model provides an in, above-mentioned double carrier distributed base station system can be based on C-RAN architectural design (C-RAN, Cloud-Radio Access Network, based on the Radio Access Network framework of Cloud calculation), mainly include that double carrier host computer 110, extension module 120 and Radio frequency module 130 constitute, establish with little basic station gateway or core Network through double carrier host computer 110 and be connected and acquire the signal source, be connected to the Radio frequency module 130 of a plurality of distal ends through the extension unit, finally accomplish wireless signal on a large scale and cover. The dual-carrier host 110 may be responsible for controlling air interface resources of the entire dual-carrier distributed base station system, managing the air interface resources, and controlling and managing the extension module 120 and the radio frequency module 130.
The dual-carrier host 110 provides dual-frequency LTE carrier signal output through a first preset number of first interfaces, and receives a radio frequency input signal;
in the embodiment of the present invention, the dual carrier host 110 is provided with a plurality of first interfaces for connecting with a plurality of extension modules 120. The first interface may be an SFP ethernet interface (SFP, Small Form-factor plug) or an RJ45 ethernet interface, and when the first interface is an SFP ethernet interface, the expansion module 120 is also provided with an SFP ethernet interface, the dual carrier host 110 may be remotely connected to the expansion module 120 through an optical fiber, and when the first interface is an RJ45 ethernet interface, the expansion module 120 is also provided with an RJ45 ethernet interface, and the dual carrier host 110 may be remotely connected to the expansion module through a network cable.
The embodiment of the present invention provides an embodiment, dual carrier host 110 can be connected with a plurality of extension modules 120, thereby providing LTE carrier signals, as a preferred example, dual carrier host 110 can be connected with four extension modules 120 simultaneously, so as to provide dual-band LTE carrier signals for four extension modules 120 simultaneously through its dual baseband chip, and each extension module 120 can also be connected with a plurality of radio frequency modules 130 simultaneously, so as to transmit LTE carrier signals. Meanwhile, the dual carrier host 110 is connected to the plurality of expansion modules 120 through the first interface, and may also receive radio frequency signals transmitted by the plurality of expansion modules 120, where the radio frequency signals may be 2G and 3G radio frequency signals received by the radio frequency module 130, which is not limited herein.
The extension module 120 is connected to the first interface, and configured to forward the dual-band LTE carrier signal to a second interface with a second preset number, and forward a signal input by a radio frequency to the dual-carrier host 110;
the embodiment of the utility model provides an in, extension module 120 is connected to the first interface of double carrier host computer 110 through optic fibre or net twine to form remote communication with double carrier host computer 110, receive the dual-frenquency LTE carrier signal that double carrier host computer 110 sent. After receiving the dual-band LTE carrier signal, the extension module 120 forwards the dual-band LTE carrier signal to a second preset number of second interfaces, where the second interfaces are used to connect to the radio frequency module 130. When the first interface is an SFP optical ethernet interface and the second interface is an RJ45 electrical ethernet interface, the number in the extension module 120 may be provided with an optical-electrical signal conversion unit, so as to convert the dual-frequency LTE carrier signal transmitted by the dual-carrier host 110 with the optical signal into an electrical signal. The expansion module 120 is provided with a plurality of second interfaces, that is, a plurality of radio frequency modules 130 can be connected thereto, which is not limited herein.
The radio frequency module 130 is connected to the second interface, and is configured to receive and transmit the dual-frequency LTE carrier signal, and receive a radio frequency input signal and transmit the radio frequency input signal to the extension module 120.
The embodiment of the utility model provides an in, radio frequency module 130 can be connected to extension module 120's second interface through the net twine to the dual-frenquency LTE carrier signal that troublesome extension module 120 sent, and send this dual-frenquency LTE carrier signal and form dual-frenquency LTE carrier signal coverage area. Meanwhile, the rf module 130 may further include an rf circuit for receiving an rf signal, so as to receive a 2G or 3G rf signal and transmit the rf signal to the dual-carrier host 110 through the expansion module 120, which is not limited herein.
The embodiment of the utility model provides an in, establish the basic station system of distributing type through double carrier host computer, a plurality of extension module and a plurality of radio frequency module, can effectively improve signal transmission's coverage, simultaneously through supporting radio frequency input signal, realize radio frequency wireless communication to supply radio frequency wireless communication's blind area, improve user's experience degree.
Example 2
Fig. 2 is a schematic structural diagram of a dual carrier host provided in embodiment 2 of the present invention.
The dual carrier host 200 includes a radio frequency circuit 210;
the embodiment of the utility model provides an in, this radio frequency circuit 210 includes AD9363 radio frequency transceiver controller, and this AD9363 radio frequency transceiver controller is connected to first signal processing unit, acquires the 2G or the 3G radio frequency signal of this AD9363 radio frequency transceiver controller transmission. The rf circuit 210 further includes an SMA connector through which 2G or 3G rf signals are received.
A first signal processing unit 220 connected to the rf circuit 210;
in the embodiment of the present invention, the first signal processing unit 220 includes XC7a75T-2FGG484I FPGA module for performing digital filtering, broadcasting of the transmitted signal, combining of the received signal, and other related signal processing. The first signal processing unit 220 includes a plurality of parallel interfaces, each of which is connected to the SPF ethernet interface, so as to transmit the carrier signals of the first baseband unit and the second baseband unit to the outside through the SPF ethernet interface.
A microprocessor unit 230, a first baseband unit 240, and a second baseband unit 250 connected to the first signal processing unit 220;
in the embodiment of the present invention, the first baseband unit 240 and the second baseband unit 250 include a BCM61755 baseband chip or a BCM61735 baseband chip, and a carrier chip supports 128 effective RCC connection users (RCC, remote call control), 384 RCC connection state users. The first baseband unit 240 and the second baseband unit 250 are connected to and communicate with the first signal processing unit 220 through an IQ/LVDS Interface (in-phase quadrature modulation) (LVDS, Low-Voltage Differential Signaling) and an SPI Interface (Serial Peripheral Interface), so as to complete the Interface timing of the first signal processing unit 220 and the first baseband unit 240 and the second baseband unit 250.
In the embodiment of the present invention, the microprocessor unit 230 includes an STM32F107RB chip as a management control of the whole dual carrier host 200.
A switch unit 260 connected to the microprocessor unit 230, the first baseband unit 240, and the second baseband unit 250;
the embodiment of the utility model provides an in, this micro-processing module, first baseband unit 240 and second baseband unit 250 are connected to the GE port (GE, Gigabit Ethernet) of switch unit 260 also, this switch unit 260 can be Ethernet switch unit 260, provides the signal of telecommunication route of communication for two arbitrary nodes that insert this Ethernet switch unit 260. The switch unit 260 may adopt RTL8367S-CG of RTL corporation to support 1 optical port, 1 RGMII Interface (Reduced Gigabit Media Independent Interface) and 5 PHY interfaces (PHY, Physical port Physical layer).
A general industrial control computer unit 270 connected to the switch unit 260;
the embodiment of the utility model provides an in, this general industrial computer unit 270 includes the general industrial computer of X86. The universal industrial personal computer unit 270 may be developed and used as a software extension, and may also adopt a universal commercial industrial personal computer module, which is not limited herein.
A first interface circuit 280 connected to the first signal processing unit 220, the first baseband unit 240, the second baseband unit 250, and the switch unit 260.
In an embodiment of the present invention, the first interface circuit 280 includes an SFP ethernet interface, an RJ45 ethernet interface and a USIM card interface (USIM, Universal Subscriber Identity Module). Wherein, the SFP optical Ethernet interface is used for connecting with the expansion module. The first interface circuit 280 may also include an RGPS input interface, a USB interface, and a RST reset circuit.
The embodiment of the present invention provides an embodiment, the dual carrier host 200 further includes a power module, a clock module and an indicator light module. The power supply module comprises a three-phase interface with 220V power supply input, a device power switch and a power conversion unit. The clock module may employ a Si5335 chip. The indicator light module may include 4 general status indicator lights: a power supply switch state; transmission link status (each uplink and downlink interface needs to be distinguished independently); a synchronization state; an error or an alarm condition.
Fig. 3 is a distribution diagram of a dual carrier host structure according to embodiment 2 of the present invention.
The dual carrier host 200 has a product shape of 19 inches, a height of 1U (4.445cm), a depth of less than 250mm, an overall volume of less than 5 liters, and a weight of less than 5 kg. All the hardware circuits in the above embodiments are integrated on the host baseband board, and the specific position of the indicator light module may be determined according to a specific structural arrangement, which is not limited herein.
Example 3
Fig. 4 is a schematic structural diagram of an expansion module provided in embodiment 3 of the present invention.
The expansion module 400 includes a second signal processing unit 410;
in the embodiment of the present invention, the second signal processing unit 410 includes XC7A3ST-2SCG325I FPGA module, and is used for performing digital filtering, forwarding received signals, and other related signal processing. The second signal processing unit 410 comprises a plurality of parallel ports, which may be serdes optical ports, connected to the second interface circuit through the plurality of parallel ports.
A second interface circuit 420 connected to the second signal processing unit 410;
in an embodiment of the present invention, the second interface circuit 420 includes an SFP optical ethernet interface and an RJ45 electrical ethernet interface. The RJ45 ethernet interface is connected to the serdes optical port of the second signal processing unit 410 through a 2.5G PHY interface, and the PHY interface chip is AR8035 or AR 8033. The SFP ethernet interface is used to connect to a dual-carrier host, the RJ45 ethernet interface is used to connect to a radio frequency module, and the RJ45 ethernet interface may be provided in plurality, which is not limited herein.
And the POE power supply circuit 430 is used for supplying power to the radio frequency module through a connecting wire.
The embodiment of the utility model provides an in, POE (Power Over Ethernet, active Ethernet) indicates do not make under the condition of any change at present Ethernet wiring infrastructure, when for some terminal transmission data signal based on IP, can also provide DC Power supply's technique for this type of equipment. The expansion module 300 further includes a power module, and the power module supplies power to the expansion module 300 and also supplies power to the rf module connected to the expansion module 300 through the POE power supply circuit 330.
Example 4
Fig. 5 is a schematic structural diagram of a radio frequency module according to embodiment 4 of the present invention.
The rf module 500 includes a third signal processing unit 510;
in the embodiment of the present invention, the third signal processing unit 510 includes XC7A3ST-2SCG325I FPGA module, and is used for performing digital filtering, forwarding received signals, and other related signal processing. The third signal processing unit 510 includes a plurality of parallel ports, which may be serdes optical ports and RGMII interfaces.
A third interface circuit 520 and a radio frequency circuit 530 connected to the third signal processing unit 510;
in an embodiment of the present invention, the rf circuit 530 includes an AD9363 rf transceiver controller. The rf circuit 530 further includes an rf unit circuit corresponding to the AD9363 rf transceiver controller. The third interface circuit 520 includes an RJ45 electrical ethernet interface.
And the POE power circuit 540 is used for receiving the electric energy transmitted by the expansion module through a connecting line.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of an apparatus according to various embodiments of the present invention. In this regard, each block in the block diagrams may represent a module, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module or unit in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A radio frequency coupling accessed double-carrier distributed base station system is characterized by comprising a double-carrier host, a plurality of extension modules and a plurality of radio frequency modules which are sequentially connected;
the dual-carrier host provides dual-frequency LTE carrier signal output through a first preset number of first interfaces and receives a radio frequency input signal;
the extension module is connected with the first interface and used for forwarding the dual-frequency LTE carrier signals to a second interface of a second preset number of extension modules and forwarding radio-frequency input signals to the dual-carrier host;
the radio frequency module is connected with the second interface and used for receiving and transmitting the dual-frequency LTE carrier signal, receiving a radio frequency input signal and transmitting the signal to the extension module.
2. The dual carrier distributed base station system of claim 1, wherein the first interface is an SFP ethernet interface or an RJ45 ethernet interface; the second interface is an SFP optical Ethernet interface or an RJ45 electric Ethernet interface;
the dual-carrier host, the expansion module and the radio frequency module are connected through an optical fiber or a network cable with a preset length in sequence.
3. The radio frequency coupled-in dual carrier distributed base station system of claim 1, wherein said dual carrier host comprises radio frequency circuitry;
the first signal processing unit is connected with the radio frequency circuit;
the microprocessor unit, the first baseband unit and the second baseband unit are connected with the first signal processing unit;
a switch unit connected to the microprocessor unit, the first baseband unit, and the second baseband unit;
the universal industrial personal computer unit is connected with the switch unit;
a first interface circuit connected to the first signal processing unit, the first baseband unit, the second baseband unit, and the switch unit.
4. The dual carrier distributed base station system of claim 3, wherein the radio frequency circuitry comprises an AD9363 radio frequency transceiver controller; the first signal processing unit comprises an XC7A75T-2FGG484I FPGA module; the microprocessor unit comprises an STM32F107RB chip; the first baseband unit and the second baseband unit comprise a BCM61755 baseband chip or a BCM61735 baseband chip; the switch unit comprises an RTL8367S-CG module; the universal industrial personal computer unit comprises an X86 universal industrial personal computer.
5. The dual carrier distributed base station system of claim 3, wherein the first interface circuit comprises an SFP Ethernet over fiber interface, an RJ45 Ethernet over Ethernet interface, and a USIM card interface.
6. The radio frequency coupled-in dual carrier distributed base station system of claim 1, wherein the extension module comprises a second signal processing unit;
a second interface circuit connected to the second signal processing unit;
and the POE power supply circuit is used for supplying power to the radio frequency module through a connecting wire.
7. The dual carrier distributed base station system of claim 6, wherein the second interface circuit comprises an SFP ethernet interface and an RJ45 ethernet interface.
8. The radio frequency coupled-in dual carrier distributed base station system of claim 6, wherein the second signal processing unit comprises an XC7A3ST-2SCG325IFPGA module.
9. The radio frequency coupled-in dual carrier distributed base station system of claim 1, wherein the radio frequency module comprises a third signal processing unit;
the third interface circuit and the radio frequency circuit are connected with the third signal processing unit;
and the POE power circuit is used for receiving the electric energy transmitted by the expansion module through a connecting wire.
10. The dual carrier distributed base station system of claim 9, wherein the third signal processing unit comprises XC7A3ST-2SCG325I FPGA module; the radio frequency circuit comprises an AD9363 radio frequency transceiver controller.
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