CN106888466B - Method and device for realizing remote communication of mobile base station - Google Patents
Method and device for realizing remote communication of mobile base station Download PDFInfo
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- CN106888466B CN106888466B CN201510929183.XA CN201510929183A CN106888466B CN 106888466 B CN106888466 B CN 106888466B CN 201510929183 A CN201510929183 A CN 201510929183A CN 106888466 B CN106888466 B CN 106888466B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/90—Non-optical transmission systems, e.g. transmission systems employing non-photonic corpuscular radiation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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Abstract
The invention discloses a method and a device for realizing remote communication of a mobile base station, which relate to the technical field of mobile communication, and the method comprises the following steps: the radio frequency single board performs down-conversion processing on the received radio frequency signal to obtain a digital baseband signal and sends the digital baseband signal to the baseband single board; the baseband single board processes the digital baseband signal into an IQ digital signal suitable for microwave transmission and sends the IQ digital signal to the microwave single board; and the microwave single board processes the IQ digital signal sent by the baseband single board into a microwave signal and then transmits the microwave signal to a core network so as to facilitate the core network to perform corresponding processing. By integrally designing the base station, the invention ensures that the equipment is close to the antenna, reduces the feeder loss, improves the coverage capability, enhances the networking flexibility, improves the service quality and greatly reduces the network cost and the maintenance cost of operators.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method and an apparatus for implementing remote communications of a mobile base station.
Background
At present, most 3G/4G Base stations adopt a Radio Remote Unit (RRU) and a Building Base Band Unit (BBU) to form a Radio access network, and are connected to a core network through a transmission network formed by optical fibers or microwaves. For places where wired transmission resources are difficult to reach, such as remote rural areas, islands, highways and the like, if a traditional networking mode is still used, poor stability and reliability of the whole network can be caused due to the fact that a plurality of physical interfaces are provided and the connection stability is poor, and meanwhile poor mobile services are brought to users.
Disclosure of Invention
The invention aims to provide a method and a device for realizing remote communication of a mobile base station, which solve the problem that the stability and the reliability of the whole network are poor due to a plurality of physical interfaces used in places where wired transmission resources are difficult to reach in the prior art.
According to an aspect of the present invention, there is provided a method for implementing long-distance communication of a mobile base station, comprising the steps of:
the radio frequency single board performs down-conversion processing on the received radio frequency signal to obtain a digital baseband signal and sends the digital baseband signal to the baseband single board;
the baseband single board processes the digital baseband signal into an IQ digital signal suitable for microwave transmission and sends the IQ digital signal to the microwave single board;
and the microwave single board processes the IQ digital signal sent by the baseband single board into a microwave signal and then transmits the microwave signal to a core network so as to facilitate the core network to perform corresponding processing.
Preferably, the radio frequency single board consists of two transmitting and two receiving links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
Preferably, the processing, by the baseband board, the digital baseband signal into an IQ data signal suitable for microwave transmission includes:
and the baseband single board demodulates, encapsulates and modulates the digital baseband signal to obtain an IQ digital signal.
Preferably, the processing, by the microwave board, the IQ digital signal sent by the baseband board into a microwave signal includes:
and the microwave single board performs up-conversion processing on the IQ digital signal sent by the baseband single board to obtain a microwave signal.
Preferably, the microwave board is further configured to perform down-conversion processing on the received microwave signal to obtain an IQ digital signal.
Preferably, the baseband board is further configured to perform demodulation, decapsulation, and modulation processing on the IQ digital signal sent by the microwave board to obtain a digital baseband signal.
Preferably, the radio frequency board is further configured to perform up-conversion processing on the digital baseband signal of the baseband board to obtain a radio frequency signal.
According to another aspect of the present invention, there is provided an apparatus for implementing long-range communication of a mobile base station, comprising:
the radio frequency single board is used for carrying out down-conversion processing on the received radio frequency signal to obtain a digital baseband signal;
the baseband single board is used for processing the digital baseband signal sent by the radio frequency single board into an IQ digital signal suitable for microwave transmission;
and the microwave single board is used for processing the IQ digital signals sent by the baseband single board into microwave signals and then transmitting the microwave signals to the core network so as to facilitate the core network to perform corresponding processing.
Preferably, the radio frequency single board consists of two transmitting and two receiving links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
Preferably, the radio frequency module further comprises a control board for controlling the radio frequency board, the baseband board, and the microwave board.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the integrated design of the base station, the equipment is close to the antenna, the feeder loss is reduced, the coverage capability is improved, the networking flexibility is enhanced, the service quality is improved, the network cost and the maintenance cost of an operator are greatly reduced, meanwhile, the integrated design can also reduce the power consumption, the integrated design is healthy and environment-friendly, and the network reliability and the transmission throughput are improved through 1+ 1.
Drawings
Fig. 1 is a flowchart of a method for implementing long-distance communication of a mobile base station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an apparatus for implementing long-distance communication of a mobile base station according to an embodiment of the present invention;
fig. 3 is a structural diagram of the radio frequency board in fig. 2 according to an embodiment of the present invention;
fig. 4 is a structural diagram of the baseband board in fig. 2 according to an embodiment of the present invention;
fig. 5 is a structural diagram of a 1T1T microwave board in fig. 2 according to an embodiment of the present invention;
fig. 6 is a structural diagram of a 2T2R microwave board in fig. 2 according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described below are only for the purpose of illustrating and explaining the present invention, and are not to be construed as limiting the present invention.
Fig. 1 is a flowchart of a method for implementing long-distance communication of a mobile base station according to an embodiment of the present invention, as shown in fig. 1, including the following steps:
step S101: the radio frequency single board performs down-conversion processing on the received radio frequency signal to obtain a digital baseband signal and sends the digital baseband signal to the baseband single board;
step S102: the baseband single board processes the digital baseband signal into an IQ digital signal suitable for microwave transmission and sends the IQ digital signal to the microwave single board;
step S103: and the microwave single board processes the IQ digital signal sent by the baseband single board into a microwave signal and then transmits the microwave signal to a core network so as to facilitate the core network to perform corresponding processing.
For example, if the radio frequency signal belongs to a voice service, the core network performs voice service processing; and if the radio frequency signal belongs to the data service, the core network processes the data service.
The radio frequency single board consists of two transmitting and two receiving links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
Specifically, the processing, by the baseband board, the digital baseband signal into an IQ data signal suitable for microwave transmission includes: and the baseband single board demodulates, encapsulates and modulates the digital baseband signal to obtain an IQ digital signal. The processing, by the microwave board, the IQ digital signal sent by the baseband board into a microwave signal includes: and the microwave single board performs up-conversion processing on the IQ digital signal sent by the baseband single board to obtain a microwave signal.
The microwave single board of the present invention is further configured to perform down-conversion processing on the received microwave signal to obtain an IQ digital signal. The baseband single board is further configured to perform demodulation, decapsulation, and modulation processing on the IQ digital signal sent by the microwave single board to obtain a digital baseband signal. The radio frequency single board is further configured to perform up-conversion processing on the digital baseband signal of the baseband single board to obtain a radio frequency signal.
Fig. 2 is a schematic diagram of an apparatus for implementing long-distance communication of a mobile base station according to an embodiment of the present invention, as shown in fig. 2, including: a radio frequency single board 201, a baseband single board 202 and a microwave single board 203. The radio frequency board 201 is configured to perform down-conversion processing on the received radio frequency signal to obtain a digital baseband signal; the baseband board 202 is configured to process the digital baseband signal sent by the radio frequency board into an IQ digital signal suitable for microwave transmission; the microwave board 203 is configured to process the IQ digital signal sent by the baseband board into a microwave signal, and then transmit the microwave signal to a core network, so that the core network performs corresponding processing.
The radio frequency single board consists of two transmitting and two receiving links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
The invention also comprises a control single board for controlling the radio frequency single board, the baseband single board and the microwave single board.
That is, the rf board is mainly responsible for subjecting the rf signal received by the antenna to low noise amplification, and sending the rf signal to the baseband board for demodulation after down-conversion; and up-converting the signal modulated by the baseband single board into a radio frequency signal, amplifying the signal through a power amplifier, and sending the signal to the UE through a radio frequency antenna. The baseband single board is mainly responsible for demodulating signals sent by the radio frequency single board and transmitting the signals to the microwave single board; and demodulating and transmitting the signal transmitted by the microwave single board to the radio frequency single board. The microwave single board is mainly responsible for up-converting a signal modulated by the baseband single board twice into a microwave signal, amplifying the microwave signal by a Power Amplifier (PA), and sending the microwave signal to a receiving antenna of a core network through a microwave antenna; and sending the microwave signal received by the microwave antenna to the baseband single board for demodulation after low noise amplification and two times of down-conversion. The control single board mainly has the function of controlling the radio frequency single board, the microwave single board and the baseband single board. That is, the baseband single board, the radio frequency single board, and the microwave single board receive and transmit link gain, the realization of the logic function of each single board, the alarm information processing, and the remote maintenance processing are performed.
The radio frequency single board consists of two transmitting and two receiving links, and can meet the requirements of wireless coverage, capacity expansion and MIMO technology. The microwave single board can be formed by one transmitting and one receiving; or the system can be composed of two-sending and two-receiving, which can meet the application scenes of 1+1 protection of transmission, frequency reuse and the like.
The technical content of the present invention is described in detail below with reference to fig. 3 to 6:
as shown in fig. 3, a radio frequency antenna 31 of the radio frequency board receives a UE signal, performs channel selection through a duplexer 32, selects a receiving link of the radio frequency board, performs power amplification and low noise amplifier 33, transceiver board 34, and digital intermediate frequency 35 on the signal to obtain a digital baseband signal, and transmits the digital baseband signal to the baseband board. As shown in fig. 4, the baseband board demodulates and decodes the signal through the radio frequency baseband processing module 41 and sends the demodulated and decoded signal to the frame protocol processing module 42, the frame protocol processing module 42 encapsulates the demodulated and decoded signal according to the protocol requirement, the encapsulated signal is sent to the ethernet switching and interface unit 43, the ethernet switching and interface unit 43 encapsulates and packages the signal according to the requirement of the IP frame, and sends the encapsulated and packaged signal to the microwave baseband processing module 44; the microwave baseband processing module 44 encodes and modulates the packaged signal to convert the signal into an IQ digital signal, the microwave baseband processing module 44 is connected to the microwave board by a specially defined connector, and the IQ digital signal output by the microwave baseband processing module is sent to the microwave board by the connector. As shown in fig. 5, after the 1T1R microwave board passes through the duplexer 56 and the transceiving link control 53, selects the receiving link of the microwave board, the IQ digital signal is processed by the intermediate frequency 51, the first-stage frequency conversion 52, the second-stage frequency conversion 54, the microwave amplifier and the low noise amplifier 55, and then is sent to the microwave antenna 57 through the duplexer 56, and is relayed, and finally the microwave signal is transmitted to the core network.
Meanwhile, the microwave antenna of the microwave single board selects the received microwave signal through a duplexer channel, delivers the microwave signal to a microwave single board receiving link, performs power control and filtering on the signal, performs down-conversion for 2 times to obtain an IQ digital signal, demodulates the IQ digital signal, re-encodes and modulates a data code stream, delivers the data code stream to a transmitting link of the radio frequency single board, performs frequency conversion on the signal, amplifies the data code stream, and transmits the amplified data code stream to the UE through a coverage antenna, thereby achieving the purpose of communication.
As shown in fig. 6; the microwave single board comprises 2T2R, namely, the microwave single board is a transceiver which is two links; the link mode is designed mainly to realize the reliability of transmission and improve the transmission capacity; in order to realize the reliability of transmission, the two links work under the same configuration through the control part; 1 is set as the main link; 2 is a backup link; after link 1 has failed; will switch to work on link 2; or set 2 as the primary link; 1 is a standby link; after link 2 fails; the switch will be made to work on link 1. The links 1 and 2 can also be arranged on different working frequency points, and the transmission capacity of the 2-bit network can be increased in the same time.
When a new base station and a traditional integrated base station are co-located, the main scene of the invention is that the data of the traditional integrated base station is transmitted to the new base station through the IP exchange function of the new base station, and the data is packaged through an Ethernet exchange and interface unit in a baseband single board and then transmitted to a core network through a microwave single board; or the data from the core network is decapsulated by the ethernet switching and interface unit and then transmitted to the conventional integrated base station through the network cable. When the new base station communicates with the core network; and the new base station can be used at the core network side to complete the transmission of the signals. The signal received by the microwave antenna is processed by the microwave single board, delivered to the control single board and then transmitted to the core network through an S1 port; the signal received by the radio frequency antenna is processed by the radio frequency single board, then is sent to the control single board, and finally is transmitted to the core network through an S1 port, and the information interaction with the core network is completed.
In summary, the present invention has the following technical effects:
the base station improves the network performance, reduces the network cost, enhances the network expansion flexibility and reduces the network management complexity, simultaneously realizes the wireless coverage function and the transmission function based on the integrated design concept, and can flexibly establish the network only by providing the working voltage so as to solve the problem of network construction in special environment.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and various modifications can be made by those skilled in the art in light of the principle of the present invention. Thus, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (10)
1. A method for realizing remote communication of a mobile base station is characterized by comprising the following steps:
the radio frequency single board performs down-conversion processing on the received radio frequency signal to obtain a digital baseband signal and sends the digital baseband signal to the baseband single board;
the baseband single board processes the digital baseband signal into an IQ digital signal suitable for microwave transmission and sends the IQ digital signal to the microwave single board;
and the microwave single board processes the IQ digital signal sent by the baseband single board into a microwave signal and then transmits the microwave signal to a core network so as to facilitate the core network to perform corresponding processing.
2. The method according to claim 1, wherein the radio frequency board is composed of two transmitting and two receiving links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
3. The method of claim 1, wherein the processing of the digital baseband signal into an IQ data signal suitable for microwave transmission by the baseband board comprises:
and the baseband single board demodulates, encapsulates and modulates the digital baseband signal to obtain an IQ digital signal.
4. The method according to claim 3, wherein the processing, by the microwave board, the IQ digital signal sent by the baseband board into a microwave signal comprises:
and the microwave single board performs up-conversion processing on the IQ digital signal sent by the baseband single board to obtain a microwave signal.
5. The method according to any one of claims 1 to 4, wherein the microwave board is further configured to perform down-conversion processing on the received microwave signal to obtain an IQ digital signal.
6. The method according to claim 5, wherein the baseband single board is further configured to perform demodulation, decapsulation, and modulation processing on the IQ digital signal sent by the microwave single board to obtain a digital baseband signal.
7. The method according to claim 6, wherein the radio frequency board is further configured to perform up-conversion processing on the digital baseband signal of the baseband board to obtain the radio frequency signal.
8. An apparatus for implementing remote communication of a mobile base station, comprising:
the radio frequency single board is used for carrying out down-conversion processing on the received radio frequency signal to obtain a digital baseband signal;
the baseband single board is used for processing the digital baseband signal sent by the radio frequency single board into an IQ digital signal suitable for microwave transmission;
and the microwave single board is used for processing the IQ digital signals sent by the baseband single board into microwave signals and then transmitting the microwave signals to the core network so as to facilitate the core network to perform corresponding processing.
9. The apparatus according to claim 8, wherein said radio frequency board is composed of two transmit and two receive links; the microwave single board consists of a one-transmitting one-receiving link or two-transmitting two-receiving links.
10. The apparatus according to claim 8, further comprising a control board for controlling the radio frequency board, the baseband board, and the microwave board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929183.XA CN106888466B (en) | 2015-12-15 | 2015-12-15 | Method and device for realizing remote communication of mobile base station |
| PCT/CN2016/094822 WO2017101467A1 (en) | 2015-12-15 | 2016-08-12 | Method and apparatus for achieving long distance communication of mobile base station, and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929183.XA CN106888466B (en) | 2015-12-15 | 2015-12-15 | Method and device for realizing remote communication of mobile base station |
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| CN106888466A CN106888466A (en) | 2017-06-23 |
| CN106888466B true CN106888466B (en) | 2021-05-18 |
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| CN201510929183.XA Active CN106888466B (en) | 2015-12-15 | 2015-12-15 | Method and device for realizing remote communication of mobile base station |
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| WO (1) | WO2017101467A1 (en) |
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| Publication number | Publication date |
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| CN106888466A (en) | 2017-06-23 |
| WO2017101467A1 (en) | 2017-06-22 |
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