CN113904699B - Method for detecting installation error of external antenna and radio frequency unit - Google Patents
Method for detecting installation error of external antenna and radio frequency unit Download PDFInfo
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- 238000009434 installation Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 98
- 238000013507 mapping Methods 0.000 claims abstract description 11
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 14
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013024 troubleshooting Methods 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011835 investigation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a radio frequency unit, which comprises a control module, a channel module connected with the control module, a detection module connected with the channel module and the control module, a built-in antenna, and a power divider connected with the detection module, the built-in antenna and an external antenna; the detection module receives the uplink service signal, obtains the channel power of the uplink service signal and sends the channel power to the control module; the control module sends the downlink service signal to the channel module and receives the uplink service signal sent by the channel module; and acquiring corresponding received signal strength according to the channel power of the uplink service signal and a preset channel power and received signal strength mapping table, and outputting the received signal strength to the detection terminal. The radio frequency unit can detect the channel power of the uplink service signal in real time, if the channel power is larger and exceeds the normal range, the RSSI value is obviously increased, and the RSSI value can be observed and compared to quickly detect which external antenna is installed wrongly, so that the difficulty in troubleshooting and maintenance is reduced, and the labor is saved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of mobile communication, in particular to a method for detecting an installation error of an external antenna and a radio frequency unit.
[ background of the invention ]
For saving 5G indoor coverage investment cost, to the more scene of indoor check fender, often use three position RU coverage schemes, this scheme uses three merit to divide the ware to carry out three merits to RU's passageway, so, except that RU embeds the antenna, still can carry out wider coverage through two external antennas, improve the coverage of signal greatly.
However, in practice, since the constructor may not install the three-point RU according to the radio frequency port wiring specification, the external antenna is connected incorrectly, and there is no signal output and no alarm. As shown in fig. 1, in a normal situation, two pairs of external antennas should be connected to two channels of an RU, but in a case of wrong wiring, as shown in fig. 2, two pairs of external antennas are connected to only one channel, and as only one channel of two channels of a three-point RU sends an SSB (Synchronization Signal Bloc), this causes that one external antenna cannot receive the SSB, and when a mobile phone is in an external antenna coverage area connected to the channel, a communication Signal of the mobile phone is very weak, and voice service and data service cannot be used.
Under the networking structure of many RUs, if this problem appears, need artifical the connection condition of investigation antenna one by one, the investigation maintenance degree of difficulty is great, and the human cost is higher.
Therefore, it is necessary to provide a method for detecting whether the external antenna of the three-point RU is connected in error.
[ summary of the invention ]
The invention aims to solve the technical problem of providing a method for detecting the installation error of an external antenna and a radio frequency unit, which can quickly detect the radio frequency unit of the antenna which is installed by the error.
In order to solve the above technical problems, the present invention provides a radio frequency unit, which includes a control module, a channel module connected to the control module, a detection module connected to the channel module and the control module, a built-in antenna, and a power divider connected to the detection module, the built-in antenna, and an external antenna;
the channel module is used for transmitting an uplink service signal and a downlink service signal;
the detection module is used for receiving the uplink service signal, obtaining the channel power of the uplink service signal and sending the channel power to the control module;
the control module is used for sending the downlink service signal to the channel module and receiving the uplink service signal sent by the channel module; and acquiring corresponding received signal strength according to the channel power of the uplink service signal and a preset channel power and received signal strength mapping table, and outputting the received signal strength to a detection terminal.
Furthermore, the control module comprises a coupling circuit and a wave detection circuit connected with the coupling circuit;
the coupling circuit is used for coupling the uplink service signal and sending a coupling signal to the detection circuit;
the detection circuit is used for amplifying, filtering, detecting and operational amplifying the coupling signal to obtain the channel power of the uplink service signal, and then sending the channel power to the control module.
Furthermore, the detection circuit comprises a low-noise amplification module, a filtering module, a detection module and an operational amplifier module which are connected in sequence;
the low-noise amplification module performs low-noise amplification processing on the coupling signal and sends the processed signal to the filtering module; after filtering and impurity removing, the filtering module sends the filtered and impurity removed data to the detection module; after the detection module carries out detection processing, the channel power of the uplink service signal is obtained; and the operational amplifier module performs operational amplification on the channel power of the uplink service and sends the channel power to the control module.
Furthermore, the power divider comprises more than two groups of channel modules, more than two groups of detection modules which are respectively connected with each group of channel modules and the control module, and more than two groups of power dividers which are connected with the detection modules;
the control module is used for obtaining more than two groups of received signal strength according to the channel power of the uplink service signal sent by more than two groups of detection modules and a preset mapping relation table of the channel power and the received signal strength, and outputting the more than two groups of received signal strength to the detection terminal.
Further, the received signal strength is an RSSI signal.
In order to solve the above technical problem, the present invention further provides a base station, including the radio frequency unit and a baseband unit connected to the radio frequency unit, where the base station further includes a background management system configured to receive a received signal strength reported by the radio frequency unit, and output the received signal strength to a detection terminal according to a detection result output instruction.
In order to solve the above technical problem, the present invention further provides a method for detecting an installation error of an external antenna, comprising the following steps:
s1, a radio frequency unit receives an uplink service signal to obtain the channel power of the uplink service signal;
s2, obtaining corresponding received signal strength according to the channel power of the uplink service and a preset channel power and received signal strength mapping table;
and S3, outputting the received signal intensity to a detection terminal by the radio frequency unit.
Further, the step S3 is followed by the step of:
and S4, the detection terminal generates a visual detection result chart according to the received signal strength obtained at different sampling time points.
Further, the received signal strength is an RSSI signal.
Further, in step S3, the received signal strength is output to the detection terminal through a wireless communication network.
Compared with the prior art, the invention has the following beneficial effects: the radio frequency unit can detect the channel power of the uplink service signal in real time, if the channel power is larger and exceeds the normal range, the RSSI value is obviously increased, and the RSSI value can be observed and compared to quickly detect which external antenna is installed wrongly, so that the difficulty in troubleshooting and maintenance is reduced, and the labor is saved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a three-point RU with a properly mounted external antenna;
FIG. 2 is a schematic diagram of a three-point RU with an erroneously mounted external antenna;
FIG. 3 is a block diagram of a three point RU in accordance with an embodiment of the present invention;
fig. 4 is a diagram of a detector circuit according to an embodiment of the present invention.
[ detailed description ] A
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The radio frequency unit of the embodiment of the invention comprises a control module, a channel module connected with the control module, a detection module connected with the channel module and the control module, a built-in antenna and a power divider connected with the detection module, the built-in antenna and an external antenna.
The channel module is used for transmitting an uplink service signal and a downlink service signal.
The detection module is used for receiving the uplink service signal, obtaining the channel power of the uplink service signal and sending the channel power to the control module.
The control module is used for sending the downlink service signal to the channel module and receiving the uplink service signal sent by the channel module; and acquiring corresponding received signal strength according to the channel power of the uplink service signal and a preset mapping relation table of the channel power and the received signal strength, and outputting the received signal strength to the detection terminal.
If a three-point RU is adopted, two groups of channel modules are correspondingly connected with two groups of detection modules and power dividers, and each power divider is connected with an internal antenna and an external antenna. For other types of RUs, there may be three, four, etc. groups of channel modules, and the corresponding detection modules and power dividers also have three, four, etc.
In this embodiment, a three-point RU is taken as an example, and as shown in fig. 2, in this embodiment, two groups of channel modules are a first channel and a second channel, respectively. The detection modules are also provided with two groups, namely a first detection module connected with the first channel and the control module and a second detection module connected with the second channel and the control module. The power dividers are three power dividers, and two power dividers are provided, namely a first power divider connected with the first detection module and a second power divider connected with the second detection module.
The power divider is connected with the internal antenna and the two external antennas. As shown in fig. 2, when the two external antennas are installed incorrectly, the external antenna 1 is connected to the first power divider, and the external antenna 2 is connected to the second power divider. Depending on the communication standard, one of the channels of the RU needs to be set to transmit SSB signals and the other channel set not to transmit SSB signals. Therefore, if the first channel transmits the SSB signal and the second channel does not transmit the SSB signal, the mobile phone within the coverage of the external antenna 2 will not receive the SSB signal under the condition of an incorrect installation of the external antenna, which is usually represented by a 0-grid signal on the mobile phone. In this case, in order to transmit the uplink traffic signal to the base station, the mobile phone will increase the channel power greatly, so as to successfully transmit.
Therefore, the channel power of the uplink service signal received by the external antenna 2 exceeds the normal range, and after the second detection module detects the channel power of the external antenna 2, the control module converts the channel power into the received signal strength, and finally outputs the received signal strength to the detection terminal, so that a detection person can quickly judge that the external antenna 2 connected with the second power divider is installed incorrectly.
In this embodiment, the channel Power is the Pusch Power of the mobile phone, and the received Signal Strength is the RSSI (received Signal Strength Indication). The control module obtains the RSSI signal according to a preset mapping table of the channel power and the received signal strength, which is specifically shown in the following table.
Under the condition that the external antenna is normally connected, the RSSI value fluctuates between-40 dbm and-70 dbm, no obvious impulse is generated, and if the Pusch Power value is too high or too low, the RSSI value is caused to be impulse.
In this embodiment, the two sets of detection modules each include a coupling circuit and a detection circuit connected to the coupling circuit.
The coupling circuit is used for coupling the uplink service signal and then sending the coupled signal to the detection circuit.
The detection circuit is used for amplifying, filtering, detecting and operational amplifying the coupling signal to obtain the channel power of the uplink service signal, and then sending the channel power to the control module.
Specifically, as shown in fig. 3, in the present embodiment, the detection circuit includes an LNA (low noise amplifier module), a filter module, a detection module, and an operational amplifier module, which are connected in sequence.
And the LNA performs low-noise amplification processing on the coupled signal and sends the processed signal to the filtering module. And after the filtering module filters the impurities, the filtered impurities are sent to the detection module. And after the detection module carries out detection processing, the channel power of the uplink service signal is obtained. And the operational amplifier module performs operational amplification on the channel power of the uplink service and sends the channel power to the control module. After receiving the two groups of channel powers, the control module searches a preset mapping table to obtain two corresponding groups of RSSI values, and then reports the RSSI values to the detection terminal.
The LNA, the filtering module, the detecting module and the operational amplifier module can all adopt common circuit modules in the prior art, and the implementation of the invention is not influenced.
In this embodiment, the detection terminal is a smart phone or a computer, is connected to the base station background management system through a wireless communication network, and obtains the RSSI value of each RU through the base station background management system.
In order to accurately and timely find the problem, the detection module acquires the channel power according to a preset sampling time point. For example, if the channel power is set to be collected every 5 minutes, the detection module detects the channel power every 5 minutes, and the RU reports the RSSI value every 5 minutes correspondingly. The RSSI values obtained at different sampling time points are regenerated into a visual detection result chart by the detection terminal, so that the problem can be found more clearly and quickly by detection personnel.
The embodiment of the invention also provides a method for detecting the installation error of the external antenna, which comprises the following steps:
s1, the RU receives an uplink service signal and obtains the channel power of the uplink service signal;
s2, acquiring corresponding received signal strength according to the channel power of the uplink service and a preset mapping relation table of the channel power and the received signal strength;
s3, the RU outputs the received signal strength to a detection terminal;
and S4, generating a visual detection result chart by the detection terminal according to the received signal strength obtained at different sampling time points.
Specifically, the RU may report the RSSI value to the base station background management system in real time, or report the RSSI value of each sampling time point in a unified manner according to an output detection result instruction. And the base station background management system sends the RSSI value reported by the RU to the detection terminal according to the instruction of the output detection result.
In summary, the radio frequency unit of the present invention can detect the channel power of the uplink service signal in real time, if the channel power is large and exceeds the normal range, the RSSI value will be significantly increased, and by observing and comparing the RSSI value, it can quickly detect which external antenna is installed incorrectly, thereby reducing the difficulty of troubleshooting and maintenance and saving manpower.
The above examples merely represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications, such as combinations of different features in various embodiments, may be made without departing from the spirit of the invention, and these are within the scope of the invention.
Claims (10)
1. A radio frequency unit is characterized by comprising a control module, a channel module connected with the control module, a detection module connected with the channel module and the control module, a built-in antenna, and a power divider connected with the detection module, the built-in antenna and an external antenna; the power divider is a three-power divider and comprises a first power divider and a second power divider, the channel module comprises a first channel and a second channel, the detection module comprises a first detection module and a second detection module, and the external antenna comprises a first external antenna (1) and a second external antenna (2); the first detection module is connected with the control module and a first channel, and the first power divider is connected between the first channel and the built-in antenna and between the first power divider and a first external antenna (1); the second detection module is connected with the control module and a second channel, and the second power divider is connected between the second channel and the built-in antenna and between the second channel and a second external antenna (2);
the first channel and the second channel are used for transmitting an uplink service signal and a downlink service signal, the first channel is set to send an SSB signal, and the second channel is set not to send the SSB signal;
the first detection module is configured to receive the uplink service signal of the first channel, obtain a channel power of the uplink service signal of the first channel, and send the channel power to the control module; the second detection module is configured to receive the uplink service signal of the second channel, obtain a channel power of the uplink service signal of the second channel, and send the channel power to the control module;
the control module is used for sending the downlink service signal to the channel module and receiving the uplink service signal of the first channel and the uplink service signal of the second channel; and obtaining corresponding received signal strength according to the uplink service signal of the first channel, the channel power of the uplink service signal of the second channel and a preset mapping table of the channel power and the received signal strength, and outputting the received signal strength to a detection terminal to judge whether the first external antenna (1) is only connected to the first power divider or not and whether the second external antenna (2) is only connected to the second power divider or not.
2. The radio unit of claim 1, wherein the first detection module comprises a first coupling circuit and a first detector circuit connected to the first coupling circuit, and the second detection module comprises a second coupling circuit and a second detector circuit connected to the second coupling circuit;
the first coupling circuit is used for coupling the uplink service signal of the first channel and sending a first coupling signal to the first detection circuit; the second coupling circuit is configured to couple the uplink service signal of the second channel and send a second coupled signal to the second detection circuit;
the first detection circuit is used for amplifying, filtering, detecting and operational amplifying the first coupling signal to obtain the channel power of the uplink service signal of the first channel, and then sending the channel power to the control module; the second detection circuit is used for amplifying, filtering, detecting and operational amplifying the second coupling signal to obtain the channel power of the uplink service signal of the second channel, and then sending the channel power to the control module.
3. The radio unit according to claim 2, wherein the first detector circuit and the second detector circuit each comprise a low noise amplification module, a filtering module, a detector module and an operational amplifier module connected in sequence;
the low-noise amplification module performs low-noise amplification processing on the coupling signal and sends the processed signal to the filtering module; after the filtering module filters impurities, the filtered impurities are sent to the detection module; after the detection module carries out detection processing, the channel power of the uplink service signal is obtained; and the operational amplifier module performs operational amplification on the channel power of the uplink service and sends the channel power to the control module.
4. The radio unit of claim 1, comprising more than two sets of channel modules, more than two sets of detection modules respectively connected to each set of channel modules and the control module, and more than two sets of power dividers connected to the detection modules;
the control module is used for obtaining more than two groups of received signal strengths according to the channel power of the uplink service signal sent by more than two groups of detection modules and a preset mapping relation table of the channel power and the received signal strength, and outputting more than two groups of received signal strengths to the detection terminal.
5. A radio unit as claimed in claim 1, 2 or 3, wherein the received signal strength is an RSSI signal.
6. A base station, comprising the radio frequency unit according to any one of claims 1 to 5 and a baseband unit connected to the radio frequency unit, wherein the base station further comprises a background management system, configured to receive the received signal strength reported by the radio frequency unit, and output the received signal strength to a detection terminal according to an instruction for outputting a detection result.
7. A method for detecting an installation error of an external antenna is characterized by comprising the following steps:
s1, a radio frequency unit receives an uplink service signal and obtains the channel power of the uplink service signal; the radio frequency unit comprises a control module, a channel module connected with the control module, a detection module connected with the channel module and the control module, a built-in antenna, and a power divider connected with the detection module, the built-in antenna and an external antenna; the power divider is a three-power divider and comprises a first power divider and a second power divider, the channel module comprises a first channel and a second channel, the detection module comprises a first detection module and a second detection module, and the external antenna comprises a first external antenna (1) and a second external antenna (2); the first detection module is connected with the control module and a first channel, and the first power divider is connected between the first channel and the built-in antenna and between the first power divider and a first external antenna (1); the second detection module is connected with the control module and a second channel, and the second power divider is connected between the second channel and the built-in antenna and between the second channel and a second external antenna (2); the first channel and the second channel are used for transmitting an uplink service signal and a downlink service signal, the first channel is set to send an SSB signal, and the second channel is set not to send the SSB signal;
s2, obtaining corresponding received signal strength according to the channel power of the uplink service of the first channel, the channel power of the uplink service of the second channel and a preset channel power and received signal strength mapping table;
and S3, outputting the received signal strength to a detection terminal by a radio frequency unit to judge whether the first external antenna (1) is only connected to the first power divider or not and whether the second external antenna (2) is only connected to the second power divider or not.
8. The method for detecting an external antenna installation error according to claim 7, wherein the step S3 is followed by the step of:
and S4, the detection terminal generates a visual detection result chart according to the received signal strength obtained at different sampling time points.
9. A method for detecting an external antenna installation error according to claim 7 or 8, wherein the received signal strength is an RSSI signal.
10. A method for detecting an installation error of an external antenna according to claim 7 or 8, wherein in the step S3, the received signal strength is outputted to the detection terminal through a wireless communication network.
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| US6937188B1 (en) * | 2001-11-13 | 2005-08-30 | Bellsouth Intellectual Property Corporation | Satellite antenna installation tool |
| CN1913402B (en) * | 2005-08-11 | 2010-10-13 | 中兴通讯股份有限公司 | Intelligent method for detecting antenna fault |
| US8934855B2 (en) * | 2008-11-12 | 2015-01-13 | Apple Inc. | Antenna auto-configuration |
| CN103874087B (en) * | 2012-12-18 | 2017-11-14 | 中国移动通信集团湖北有限公司 | Wlan network wireless signal covering quality appraisal procedure and device |
| WO2017166168A1 (en) * | 2016-03-31 | 2017-10-05 | 华为技术有限公司 | Fault detection method and fault detection device for external antennas |
| CN209387879U (en) * | 2018-12-07 | 2019-09-13 | 安徽继远软件有限公司 | A GNSS receiver circuit with dual WIFI antennas |
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