CN111082861A - Millimeter wave communication test system - Google Patents
Millimeter wave communication test system Download PDFInfo
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- CN111082861A CN111082861A CN201911212810.2A CN201911212810A CN111082861A CN 111082861 A CN111082861 A CN 111082861A CN 201911212810 A CN201911212810 A CN 201911212810A CN 111082861 A CN111082861 A CN 111082861A
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0799—Monitoring line transmitter or line receiver equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Abstract
The invention relates to a millimeter wave communication test system, comprising: the device comprises a general public radio interface testing device, a 10GE circuit bearing testing device and a GE special line circuit bearing testing device; the common public radio interface testing device comprises a first microwave network management, a radio remote unit, a first millimeter wave transmitter, a first millimeter wave receiver, a baseband processing unit, an integrated service optical transmission network and a wireless network management; the 10GE circuit bearing test device comprises a second microwave network management, a data analyzer, a second millimeter wave transmitter and a second millimeter wave receiver; the GE special line circuit bearing test device comprises a third microwave network management, a third millimeter wave transmitter, a first switch, a GE special line, an internet interface, a third millimeter wave receiver, a second switch and a speed measuring computer. The system has a simple structure, is convenient to deploy and operate, realizes the test of the millimeter wave communication system, has test conditions for the situations of various bearing modes of millimeter wave communication, and is convenient for the system to complete work.
Description
Technical Field
The invention relates to the technical field of millimeter wave communication, in particular to a millimeter wave communication test system.
Background
The millimeter wave frequency band generally refers to 30GHz to 300GHz, the corresponding wavelength is 1mm to 10mm, the microwaves of the E-band and V-band frequency bands are millimeter waves, and the millimeter wave communication refers to communication performed by taking the millimeter waves as carriers for transmitting information. The millimeter wave communication technology is a wireless transmission communication technology with high quality, constant parameters and mature technology, the 5G mobile communication system is a wide-coverage, high-capacity, multi-connection, low-delay and high-reliability network, and the application of the millimeter wave communication technology to the 5G communication system is a vision generally accepted by the industry.
The strong capability and rich connection scenes of 5G will certainly arouse the application requirements of various industries, and the meeting of the requirements is difficult to realize only by means of middle and low frequency bands, so that high, middle and low frequency cooperative work is needed, and better user experience is continuously created in different scenes. For this reason, millimeter waves are a necessary trend to meet the 5G demand.
Because the millimeter wave transmission characteristics are obviously different from those of the C-band and the bands below 3GHz, the application of the millimeter wave faces serious challenges: the specifications of equipment under different application scenes are not known, great differences exist between the power, integration level, efficiency and cost of key devices and commercial use, the technologies such as calibration, linearization and heat dissipation are still imperfect, and the experience is also lacking in the aspects of efficient coverage and networking. However, the advantages of high rate transmission are still significant because of the large bandwidth of the millimeter-wave band, and thus the advantages are compatible with the challenges.
The healthy development of the high-frequency industry needs the common effort of the whole industry, promotes the maturity of an industrial chain and explores application scenes to complement each other, promotes unified frequency planning, the maturity of a high-frequency core chip, the shaping of a high-frequency OTA system testing tool, the efficiency problem of an ultra-wideband PA and the like, and continuously explores the requirements of scenes such as fixed wireless access, self-return and the like.
Therefore, a set of test system needs to be designed to perform system test on the existing 5G millimeter wave equipment, and the defects of the existing communication system are discovered in time, so as to achieve the purpose of timely perfection.
Disclosure of Invention
In view of the above, it is necessary to provide a millimeter wave communication test system in view of the above problems.
In one embodiment, there is provided a millimeter wave communication test system including: the device comprises a general public radio interface testing device, a 10GE circuit bearing testing device and a GE special line circuit bearing testing device; wherein the content of the first and second substances,
the universal public radio interface test device comprises a first transmitting unit and a first receiving unit; the first transmitting unit comprises a first microwave network management unit, a radio remote unit and a first millimeter wave transmitter; the receiving unit comprises a first millimeter wave receiver, a baseband processing unit, an integrated service optical transmission network and a wireless network manager;
the 10GE circuit bearing test device comprises a second transmitting unit and a second receiving unit; the second transmitting unit comprises a second microwave network management unit, a data analyzer and a second millimeter wave transmitter; the second receiving unit comprises a second millimeter wave receiver;
the GE special line circuit bearing test device comprises a third transmitting unit and a third receiving unit; the third transmitting unit comprises a third microwave network management unit, a third millimeter wave transmitter, a first switch, a GE private line and an internet interface; the third receiving unit comprises a third millimeter wave receiver, a second switch and a speed measuring computer.
The millimeter wave communication test system is simple in structure, convenient to deploy and operate, high in information transmission safety, capable of achieving system test on the 5G millimeter wave communication system, and capable of testing scenes under various bearing modes of millimeter wave communication, and enabling openers of millimeter waves to be capable of conducting system improvement work better.
In one embodiment, the operating parameters of the universal public radio interface test device are configured to: the millimeter wave is configured to 200GHz &64QAM, air interface capacity 8G and service rate 9.8G.
In one embodiment, the first transmitting unit is configured to continuously transmit first test data to the first receiving unit within a preset first time period; and the first microwave network manager is used for acquiring the communication link quality and the warning sent by the radio remote unit in real time and generating a millimeter wave communication link quality report.
In one embodiment, the number of the remote radio units is multiple, and the multiple remote radio units are connected in series with each other.
In one embodiment, the remote radio unit comprises a digital intermediate frequency module, a transceiver module, a power amplifier and a filtering module; the digital intermediate frequency module is used for modulation and demodulation, digital up-down frequency conversion and A/D conversion of optical transmission; the transceiver module is used for converting the intermediate frequency signal into a radio frequency signal; and the power amplifier and filter module is used for transmitting the radio-frequency signal obtained by the conversion of the transceiver module through the antenna port of the first millimeter wave transmitter.
In one embodiment, the baseband processing unit and the remote radio unit are connected through an optical fiber.
In one embodiment, the operating parameters of the 10GE circuit bearing test device are configured to: the millimeter wave is configured to be 200GHz &128QAM, and the millimeter wave antenna of the second receiving unit is configured to loop back.
In one embodiment, the second transmitting unit is configured to continuously transmit second test data to the second receiving unit for a preset second time period; and the second microwave network manager is used for acquiring the quality of the communication link in real time and generating a millimeter wave communication link quality report.
In one embodiment, the operating parameters of the GE dedicated line circuit load test apparatus are configured to: the millimeter wave is configured to be 200GHz &128QAM, and is matched with GE private line.
In one embodiment, the third microwave network manager is configured to read the real-time network speed of the speed measurement computer in seconds, and obtain the maximum value of the network speed in the full-flow test.
Drawings
FIG. 1 is a schematic diagram of a common public radio interface test apparatus according to an embodiment;
FIG. 2 is a schematic diagram of a 10GE circuit carrier test apparatus according to an embodiment;
fig. 3 is a schematic structural diagram of a GE dedicated line circuit load test apparatus in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The definitions of "first", "second", etc. in the present invention do not represent specific numbers or sequences, but are merely used for name differentiation.
According to the Fris propagation rule, the loss of the free space omnidirectional path is in direct proportion to the square of the frequency, and according to the rule, the invention provides a test system which can be used for a 5G millimeter wave communication system and is used for solving the problem of carrying out system test on the existing 5G millimeter wave communication system. In one embodiment, a millimeter wave communication test system is provided, the test system generally comprising: the device comprises a Common Public Radio Interface (CPRI) testing device, a 10GE circuit bearing testing device and a GE special line circuit bearing testing device.
Specific components of a Common Public Radio Interface (CPRI) testing device, a 10GE circuit carrying testing device, and a GE dedicated line circuit carrying testing device included in the millimeter wave communication testing system according to the present invention are described in detail below with reference to fig. 1 to 3.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a common public radio interface testing apparatus in an embodiment, the Common Public Radio Interface (CPRI) testing apparatus may include a first transmitting unit and a first receiving unit, where the first transmitting unit may include a first microwave network management unit 101, a radio remote unit 102, and a first millimeter wave transmitter 103; the first microwave network manager 101, the remote radio unit 102, and the first millimeter wave transmitter 103 may be installed in the machine room a, and the first millimeter wave transmitter 103 may be in communication connection with the first microwave network manager 101 and the remote radio unit 102, respectively.
In some embodiments, the number of Radio Remote Units (RRUs) 102 may be multiple (three as shown in fig. 1), and the radio remote units are connected in series with each other. The remote radio unit 102 may further include a digital intermediate frequency module, a transceiver module, a power amplifier, and a filtering module. The digital intermediate frequency module is mainly used for the processes of modulation and demodulation, digital up-down frequency conversion, A/D conversion and the like of optical transmission; the transceiver module may be configured to convert the intermediate frequency signal into a radio frequency signal, and finally, the power amplifier and filter module may be configured to transmit the radio frequency signal converted by the transceiver module through the antenna port of the first millimeter wave transmitter 103.
The first receiving unit may include a first millimeter wave receiver 104, a baseband processing unit (BBU)105, an integrated services optical transport network (UTN)106, and a wireless network management 107. The first millimeter wave receiver 104, the baseband processing unit 105, and the isdn 106 may be located in the machine room B, and the wireless network management 107 may be located outside the machine room B. In some embodiments, the base band processing unit (BBU)105 may be connected to the Radio Remote Unit (RRU)102 via an optical fiber.
In one embodiment, the operating parameters of a Common Public Radio Interface (CPRI) testing device may be configured to: the millimeter wave is configured to 200GHz &64QAM (CPRI option 7a), air interface capacity 8G and service rate 9.8G. Specifically, in the actual working process of the Common Public Radio Interface (CPRI) testing apparatus, the first millimeter wave transmitter 103 in the machine room a may transmit 1+0 microwaves, the first millimeter wave receiver 104 in the machine room B1 receives the microwaves, a 1+0 microwave link is generated between the first millimeter wave transmitter 103 and the first millimeter wave receiver 104, and the millimeter waves in the 1+0 microwave link may be configured to 200GHz &64QAM, an air interface capacity of 8G, and a service rate of 9.8G.
Further, the first microwave network manager 101 may extract the quality data of the 1+0 microwave link. In one embodiment, the first transmitting unit may be configured to continuously transmit the first test data to the first receiving unit for a preset first time period; and the first microwave network manager is used for acquiring the communication link quality and the warning sent by the radio remote unit in real time and generating a millimeter wave communication link quality report.
In this embodiment, in an actual test, a working process of the Common Public Radio Interface (CPRI) testing apparatus may be that the first transmitting unit transmits test data to the first receiving unit for 1 month continuously, and the first microwave network manager extracts, in real time, the communication link quality and an alarm sent by a Radio Remote Unit (RRU), and generates a millimeter wave communication link quality report.
As for the 10GE circuit carrying test device, referring to fig. 2, fig. 2 is a schematic structural diagram of the 10GE circuit carrying test device in an embodiment, where the 10GE circuit carrying test device mainly includes a second transmitting unit and a second receiving unit, where the second transmitting unit may include a second microwave network management 201, a data analyzer and a second millimeter wave transmitter 202, and the second receiving unit may include a second millimeter wave receiver 203.
In one embodiment, the operating parameters of the 10GE circuit bearing test device may be configured to: the millimeter wave is configured to be 200GHz &128QAM (10GE), and the millimeter wave antenna of the second receiving unit is configured to loop back. Further, the second transmitting unit may be configured to continuously transmit the second test data to the second receiving unit within a preset second time period; the second microwave network manager 201 may be configured to obtain the quality of the communication link in real time, and generate a millimeter wave communication link quality report.
Specifically, in the actual test work of the 10GE circuit load test device, the working process of the 10GE circuit load test device is that the second transmitting unit transmits data to the second receiving unit for 1 month continuously, and the second microwave network manager 201 extracts the communication link quality in real time to generate a millimeter wave communication link quality report.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the GE dedicated line circuit load test apparatus in an embodiment, where the GE dedicated line circuit load test apparatus mainly includes a third transmitting unit and a third receiving unit. The third transmitting unit may include a third microwave network management 301, a third millimeter wave transmitter 302, a first switch, a GE dedicated line, and an internet interface, and the third receiving unit may include a third millimeter wave receiver 303, a second switch, and a speed computer.
In one embodiment, the operating parameters of the GE dedicated line circuit carrier test apparatus may be configured to: the millimeter wave is configured to be 200GHz &128QAM (10GE), and is matched with a GE private line. Further, the third microwave network management 301 can be used to read the real-time network speed of the speed measuring computer by seconds, and obtain the maximum value of the network speed in the whole process test.
The Common Public Radio Interface (CPRI) testing device, the 10GE circuit bearing testing device and the GE private line circuit bearing testing device which are contained in the millimeter wave communication testing system are all provided with a transmitting unit and a receiving unit, the transmitting unit part corresponding to each testing device can be deployed in the same machine room such as a machine room A shown in figure 1, and each receiving unit part can be deployed in the same machine room such as a machine room B shown in figure 1, so that the effect of simple deployment is achieved, the uniform debugging of each testing device in the same machine room is facilitated, the microwave network management used by each testing device can also be the same computer equipment, and the convenience of testing operation is improved. Generally, the millimeter wave communication test system provided by the invention has the advantages that the structure is simple, the deployment and the operation of the test system are convenient, the information transmission safety is high, the system test on the 5G millimeter wave communication system is realized, the test conditions are provided for the situations of various bearing modes of millimeter wave communication, the openers of millimeter waves can better complete the system work, the signaling signals of a large base station can be directly transmitted to a terminal, the data signals of a small base station can be directly transmitted to the terminal, and the return signals of the small base station can be transmitted to the large base station.
Meanwhile, the 5G network system may consider a scheme in which signaling and data are respectively carried through different main frequency channels, so that the signaling is carried in a low frequency band, and the data is carried in a millimeter wave band, i.e., the application scenario of millimeter waves is concentrated in high data volume transmission between the small base station and the terminal and mobile communication backhaul transmission between the small base station and the large base station. The scheme of the signaling and data shunt control not only can fully utilize the bandwidth of the frequency band of millimeter wave transmission data to obtain extremely high data transmission rate and efficiency, but also can greatly reduce the transmission interference between the signaling and the data. Because the signaling is carried in a low-frequency channel, the coverage range can be wider; meanwhile, the number of the control terminals can be more because the signaling flow is smaller. When the data stream is carried in the millimeter wave channel, although the coverage is small, the transmission bandwidth is large, and the requirements of high speed and high access rate of the terminal can be met.
In the channel frequency division transmission of signaling and data, 2G or 3G main frequency can be taken as a 5G low-frequency signaling channel, so that part of the existing base stations can be preferably selected as 5G big base stations, the antenna coverage radius of the big base stations is about 1 time of the effective coverage radius of millimeter waves by adjusting the height and the downward inclination angle of the antenna, and the small base stations are just positioned at the middle positions of the terminal and the big base stations, thereby not only meeting the requirement that the signaling signals of the big base stations can be directly transmitted to the terminal, but also ensuring that the data signals of the small base stations can be directly transmitted to the terminal and the return signals of the small base stations can be transmitted to the big base stations, more importantly, the honeycomb layout mode of the big base stations and the frequency division transmission mode of the signaling data can effectively utilize the original base stations, reduce the number of the original 2G, 3G and, the base station renting, building and maintaining cost is reduced, and the inter-station interference can be effectively reduced.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A millimeter wave communication test system, comprising: the device comprises a general public radio interface testing device, a 10GE circuit bearing testing device and a GE special line circuit bearing testing device; wherein the content of the first and second substances,
the universal public radio interface test device comprises a first transmitting unit and a first receiving unit; the first transmitting unit comprises a first microwave network management unit, a radio remote unit and a first millimeter wave transmitter; the receiving unit comprises a first millimeter wave receiver, a baseband processing unit, an integrated service optical transmission network and a wireless network manager;
the 10GE circuit bearing test device comprises a second transmitting unit and a second receiving unit; the second transmitting unit comprises a second microwave network management unit, a data analyzer and a second millimeter wave transmitter; the second receiving unit comprises a second millimeter wave receiver;
the GE special line circuit bearing test device comprises a third transmitting unit and a third receiving unit; the third transmitting unit comprises a third microwave network management unit, a third millimeter wave transmitter, a first switch, a GE private line and an internet interface; the third receiving unit comprises a third millimeter wave receiver, a second switch and a speed measuring computer.
2. A millimeter wave communication test system according to claim 1, wherein the operating parameters of the common public radio interface test device are configured to: the millimeter wave is configured to 200GHz &64QAM, air interface capacity 8G and service rate 9.8G.
3. The millimeter wave communication test system according to claim 2, wherein the first transmitting unit is configured to continuously transmit first test data to the first receiving unit for a preset first time period; and the first microwave network manager is used for acquiring the communication link quality and the warning sent by the radio remote unit in real time and generating a millimeter wave communication link quality report.
4. The millimeter wave communication test system according to claim 1, wherein the number of the remote radio units is plural, and the plural remote radio units are connected in series with each other.
5. The millimeter wave communication test system according to claim 1, wherein the remote radio unit comprises a digital intermediate frequency module, a transceiver module, a power amplifier and a filter module; the digital intermediate frequency module is used for modulation and demodulation, digital up-down frequency conversion and A/D conversion of optical transmission; the transceiver module is used for converting the intermediate frequency signal into a radio frequency signal; and the power amplifier and filter module is used for transmitting the radio-frequency signal obtained by the conversion of the transceiver module through the antenna port of the first millimeter wave transmitter.
6. The millimeter wave communication test system according to claim 1, wherein the baseband processing unit and the remote radio unit are connected by an optical fiber.
7. A millimeter wave communication test system according to claim 1, wherein the operating parameters of the 10GE circuit load test apparatus are configured to: the millimeter wave is configured to be 200GHz &128QAM, and the millimeter wave antenna of the second receiving unit is configured to loop back.
8. The millimeter wave communication test system according to claim 7, wherein the second transmitting unit is configured to transmit second test data to the second receiving unit for a preset second time period; and the second microwave network manager is used for acquiring the quality of the communication link in real time and generating a millimeter wave communication link quality report.
9. The millimeter wave communication test system according to claim 1, wherein the operating parameters of the GE dedicated line circuit load test apparatus are configured to: the millimeter wave is configured to be 200GHz &128QAM, and is matched with GE private line.
10. The millimeter wave communication test system according to claim 9, wherein the third microwave network manager is configured to read the real-time network speed of the speed measurement computer in seconds, and obtain the maximum value of the network speed in the full-flow test.
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| WO2024021609A1 (en) * | 2022-07-27 | 2024-02-01 | 中兴通讯股份有限公司 | Millimeter wave transmitter and receiver apparatus and communication system |
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