CN117459957A - Base station downlink interference detection method, circuit, control unit and storage medium - Google Patents
Base station downlink interference detection method, circuit, control unit and storage medium Download PDFInfo
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- 238000010295 mobile communication Methods 0.000 description 5
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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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/08—Testing, supervising or monitoring using real traffic
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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
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Abstract
The embodiment of the invention provides a method, a circuit, a control unit and a storage medium for detecting downlink interference of a base station, wherein the method controls a signal transmitting link of the base station to be closed based on a detection instruction by responding to the detection instruction of a downlink interference signal of the base station; and after the signal transmitting link is detected to be closed, controlling the signal coupling link of the signal receiving and transmitting circuit to be communicated with the signal receiving link so as to enable a signal to be detected to be transmitted to the signal receiving link through the signal coupling link, and detecting a downlink interference signal in the signal to be detected through a baseband unit in the signal receiving link. By controlling the conduction of the signal coupling link and the signal receiving link in the signal receiving and transmitting circuit, the signal to be detected is transmitted to the signal receiving link through the signal coupling link, and then the downlink interference signal in the signal to be detected can be detected through the baseband unit on the signal receiving link, so that the efficiency and the accuracy of the detection of the downlink interference signal of the base station are improved, and the user experience effect is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a circuit, a control unit, and a storage medium for detecting downlink interference of a base station.
Background
The low-frequency signal has the advantages of small propagation loss and wide coverage range, so that the low-frequency signal becomes a main communication frequency band of the mobile communication service. For example, a mobile communication system having a frequency division duplex (Frequency Division Duplexing, FDD) operation employs a communication band of 703MHz to 743MHz, or 758MHz to 798 MHz. However, since the low frequency signal is also used for terrestrial digital television broadcasting service, there is uplink and downlink signal interference of digital television broadcasting to the mobile communication base station.
At present, for uplink signal interference, a low-frequency base station can directly receive through an existing base station signal receiving link, and detect the uplink interference signal of each frequency point so as to avoid interference frequency points. But for downlink signal interference, only standing wave ratio VSWR is detected due to the duplex filter of the mobile communication base station. The VSWR detection is mainly used for detecting standing wave ratio of the antenna feeder through reverse radio frequency link detection, and the corresponding reverse radio frequency link is coupled with reverse radio frequency signals of about 0dBm through a 30-40dB coupler; but the power of the signal received by the base station after the low frequency signal is spatially propagated is typically below-30 dBm. Therefore, the existing base station radio frequency link design cannot meet the requirement of low-frequency signal downlink signal interference detection, so that mobile communication service is interfered, and the user experience effect is seriously affected.
Disclosure of Invention
The invention provides a base station downlink interference detection method, a circuit, a control unit and a storage medium, wherein a signal coupling link in a signal receiving and transmitting circuit is controlled to be conducted with a signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and further, a downlink interference signal in the signal to be detected can be detected through a baseband unit on the signal receiving link, and the aim of improving the efficiency and the accuracy of detecting the downlink interference signal of the base station is achieved, so that the user experience effect is improved.
In a first aspect, an embodiment of the present invention provides a method for detecting downlink interference of a base station, where the method includes:
responding to a downlink interference signal detection instruction of a base station, and controlling a signal transmitting link of the signal receiving and transmitting circuit to be closed based on the detection instruction;
after the signal transmitting link is detected to be closed, the signal coupling link of the signal receiving and transmitting circuit is controlled to be communicated with the signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit pair in the signal receiving link.
In a second aspect, an embodiment of the present invention provides a signal transceiver circuit, where the signal transceiver circuit is communicatively connected to a control unit, and includes:
a duplex filter;
a signal transmitting link for transmitting a downlink target signal;
a signal receiving link for receiving an uplink target signal;
and the signal coupling link is controlled by the control unit to be communicated with the signal receiving link after the signal transmitting link is controlled to be closed based on the detection instruction, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link.
In a third aspect, an embodiment of the present invention provides a control unit, where the control unit includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing connection communication between the processor and the memory, where the computer program, when executed by the processor, implements the steps of the method for detecting downlink interference of a base station as described in the first aspect above.
In a fourth aspect, an embodiment of the present invention provides a storage medium, configured to store one or more programs, where the one or more programs are executable by one or more processors to implement the steps of the method for detecting downlink interference of a base station according to the first aspect.
The embodiment of the invention provides a base station downlink interference detection method, a circuit, a control unit and a storage medium, wherein the base station downlink interference detection method controls a signal transmitting link of a base station to be closed based on a detection instruction by responding to the detection instruction of a downlink interference signal of the base station; and after the signal transmitting link is detected to be closed, controlling the signal coupling link of the signal receiving and transmitting circuit to be communicated with the signal receiving link so as to enable a signal to be detected to be transmitted to the signal receiving link through the signal coupling link, and detecting a downlink interference signal in the signal to be detected through a baseband unit in the signal receiving link. By controlling the conduction of the signal coupling link and the signal receiving link in the signal receiving and transmitting circuit, the signal to be detected is transmitted to the signal receiving link through the signal coupling link, and then the downlink interference signal in the signal to be detected can be detected through the baseband unit on the signal receiving link, so that the efficiency and the accuracy of the detection of the downlink interference signal of the base station are improved, and the user experience effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a scenario in which an embodiment of the present invention is applicable;
FIG. 2 is a schematic block diagram of the signaling circuitry of FIG. 1;
fig. 3 is a schematic block diagram of the signal transmission link of fig. 2;
FIG. 4 is a schematic block diagram of the connection of the signal transmission link and the signal coupling link of FIG. 2;
fig. 5 is a flowchart of an implementation of a method for detecting downlink interference of a base station according to an embodiment of the present invention;
fig. 6 is a schematic block diagram of a control unit provided by an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be noted that, since the radio frequency link of the existing base station cannot meet the requirement of downlink interference detection of the low frequency signal, currently, for downlink interference detection of the low frequency base station, a mode of detecting by the mobile terminal and feeding back a sub-band channel quality indicator CQI to the base station is generally adopted to determine whether a downlink interference signal exists. And the mobile terminal detects the channel quality and the interfered condition at the continuous subcarrier positions on the whole bandwidth and feeds the channel quality and the interfered condition back to the base station. The mobile terminal is free to move along with the user, so that the position of the user is continuously changed and is influenced by shielding of surrounding objects and the like, so that the low-frequency downlink interference signal detected by the mobile terminal is suddenly high and suddenly low, and is unstable, and the situation of the low-frequency signal downlink interference in the area cannot be truly reflected. And if the mobile terminal moves at a high speed, there is time delay, and the interference fed back by the sub-band CQI is the interference at the previous moment and cannot truly feed back the interference at the current moment. The method has the advantages that the detection efficiency of the downlink interference signals is low, the detection is inaccurate, and the user experience effect is affected.
The embodiment of the invention provides a base station downlink interference detection method, a circuit, a control unit and a storage medium, which can effectively improve the detection efficiency and the detection accuracy of downlink interference signals and further improve the user experience effect.
Specifically, the method for detecting the downlink interference of the base station provided by the embodiment of the invention can be applied to a control unit, and the control unit can be a microprocessor or a chip with a data processing function.
The control unit is in communication connection with the signal receiving and transmitting circuit, and can control the signal transmitting link of the signal receiving and transmitting circuit to be closed based on a detection instruction by responding to a downlink interference signal detection instruction of the base station; after the signal transmitting link is detected to be closed, the signal coupling link of the signal receiving and transmitting circuit is controlled to be communicated with the signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link. The signal to be detected is transmitted to the signal receiving link through the signal coupling link by controlling the conduction of the signal coupling link and the signal receiving link, so that the downlink interference signal in the signal to be detected can be detected through the baseband unit on the signal receiving link, and the aim of improving the efficiency and the accuracy of detecting the downlink interference signal of the base station is achieved, so that the user experience effect is improved.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic block diagram of a scenario in which an embodiment of the present invention is applicable.
As shown in fig. 1, the method for detecting downlink interference of a base station according to the embodiment of the present invention is applicable to a base station 100 including a signal transceiver circuit 102 and a control unit 104.
As shown in fig. 1, the signal transceiver circuit 102 and the control unit 104 may be connected through a network. The control unit 104 may control the signal transmitting link of the signal transceiving circuit 102 to be turned off based on the received detection instruction in response to the downlink interference signal detection instruction to the base station 100; after detecting that the signal transmitting link of the signal transceiving circuit 102 is closed, the signal coupling link of the signal transceiving circuit 102 is controlled to be communicated with the signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link. By controlling the conduction of the signal coupling link and the signal receiving link in the signal receiving and transmitting circuit, the signal to be detected is transmitted to the signal receiving link through the signal coupling link, and then the downlink interference signal in the signal to be detected can be detected through the baseband unit on the signal receiving link, so that the efficiency and the accuracy of the detection of the downlink interference signal of the base station are improved, and the user experience effect is improved.
Illustratively, as shown in fig. 2, fig. 2 is a schematic block diagram of the signal transceiving circuit of fig. 1. As can be seen from fig. 2, in the embodiment of the present invention, the signal transceiver circuit 102 includes a duplex filter 1021, a signal transmitting link 1022, a signal receiving link 1024, and a signal coupling link 1026; wherein, the signal transmitting link 1022 is configured to transmit a downlink target signal; a signal receiving link 1024 for receiving the uplink target signal; and after the signal coupling link 1026 is closed, the control unit 104 controls the signal transmitting link 1022 to be communicated with the signal receiving link 1024 based on the detection instruction, so that the signal to be detected is transmitted to the signal receiving link 1024 through the signal coupling link 1026, and the downlink interference signal in the signal to be detected is detected through the baseband unit in the signal receiving link 1024. Wherein the baseband unit is not shown in fig. 2. It should be noted that, the process of detecting the downlink interference signal in the signal to be detected by the baseband unit is consistent with the existing uplink interference detection flow, that is, the baseband unit can determine whether the interference signal exists in each frequency point and the size of the interference signal by detecting the size of the signal power of each frequency point, so as to realize the detection of the downlink interference signal, and further, by adopting scheduling modes such as frequency selection, the scheduling service can be effectively avoided from the interference frequency point, so as to improve the experience effect of the user. The process of detecting the downlink interference signal in the signal to be detected by the baseband unit may specifically refer to the existing uplink interference detection process, which is not described in detail herein. According to the embodiment of the invention, the control unit controls the signal coupling link to be communicated with the signal receiving link, so that the downlink interference signal enters the receiving channel of the signal receiving link through the signal coupling link, and further, the detection method of the uplink interference signal in the receiving channel is utilized, the detection of the downlink interference signal is realized, and the detection efficiency and the detection accuracy of the downlink interference signal can be effectively improved.
It should be noted that, in general, the base station antenna is located at a high position and has no shielding with the interference source, similar to free space propagation, the frequency band of the low-frequency interference signal received by the base station antenna is fixed, the power is basically stable, and the detected low-frequency downlink interference signal is closer to the real transmitting signal of the interference source. Therefore, the embodiment of the invention can be used for detecting the downlink interference signal at the low-frequency base station side.
In particular implementation, as shown in fig. 3, fig. 3 is a schematic block diagram of the signal transmission link of fig. 2. As can be seen from fig. 3, the signal transmitting link 1022 includes a power amplifying unit 301, a coupling unit 302, a first switching device 304, a feedback channel 305, a transmitting channel 306, an antenna standing wave calculating unit 306, and a digital power calculating unit 308. The power amplification unit 301 is connected to the duplex filter 1021, and is configured to transmit the downlink signal transmitted by the transmission channel 306 to the antenna, so that the antenna radiates. The coupling unit 302 may couple the forward power and the reverse power, and is used for the antenna standing wave calculation by the antenna standing wave calculation unit 306, and the digital power calculation unit 308 is used for calculating the power of the transmission signal.
The specific structures of the power amplifier unit 301, the forward coupling unit 302, the backward coupling unit 303, the first switching device 304, the feedback channel 305, the transmitting channel 306, the antenna standing wave calculating unit 306, and the digital power calculating unit 308 may refer to the structures of the corresponding units in the existing base station radio frequency link, and will not be explained in detail herein.
It should be appreciated that, in operation of the signal transceiving circuit 102, if a downlink interference signal is present, the downlink interference signal cannot be transmitted to the signal receiving link, but can be transmitted to the signal transmitting link through the transmit band filter of the duplex filter, since the duplex filter includes the transmit band filter and the receive band filter, and the receive band filter of the duplex filter filters. However, after the downlink interference signal is transmitted to the signal transmitting link, only the standing wave ratio VSWR of the antenna is detected on the signal transmitting link. Wherein the VSWR is detected primarily by the reverse radio frequency link formed by the back coupling element and the feedback path. Specifically, since the base station transmits high-power signals, the reverse coupling unit usually adopts a 30-40dB coupler to couple reverse radio frequency signals of about 0 dBm; if the low-frequency signal is propagated spatially, the power of the signal received by the base station is generally below-30 dBm, so that the low-frequency downlink interference signal cannot be detected.
In the embodiment of the present invention, by setting the signal coupling link 1026 in the signal transceiver circuit 102, when the detection of the downlink interference signal is required, the control unit 104 communicatively connected to the signal transceiver circuit 102 controls the signal transmitting link 1022 to be turned off, and after the signal transmitting link 1022 is turned off, the signal coupling link 1026 is controlled to be communicated with the signal receiving link 1024, so that the signal to be detected is transmitted to the signal receiving link 1024 through the signal coupling link 1026, and the baseband unit in the signal receiving link 1024 detects the downlink interference signal in the signal to be detected. The baseband unit can detect the signal size of each frequency point and calculate the interference signal size of each frequency point, so that the downlink interference signal can be effectively detected, and particularly the low-frequency downlink interference signal can be accurately detected, so that the detection accuracy and the detection efficiency of the low-frequency downlink interference signal are improved. And the baseband unit can adopt scheduling modes such as frequency selection and the like, so that the interference frequency point can be effectively avoided to schedule the service. Therefore, the user experience effect can be improved.
Specifically, as shown in fig. 4, fig. 4 is a schematic block diagram of the connection of the signal transmitting link and the signal coupling link in fig. 2. As can be seen from fig. 4, in the embodiment of the present invention, the signal transmitting link 1022 includes: a low noise amplification unit 401, a sound surface filter 402, and a reception channel 403.
In a specific implementation, the low noise amplification unit 401 is configured to amplify an uplink signal received by the antenna. The uplink signal received by the antenna can be transmitted to the low-noise amplifying unit through the duplex filter 1021, and the uplink signal is amplified by the low-noise amplifying unit 401 and then transmitted to the acoustic surface filter. Specifically, the low-noise amplifying unit 401 may be an amplifier having a noise coefficient lower than a preset noise threshold, and the low-noise amplifying unit 401 is not particularly limited.
The acoustic surface filter 402 is configured to filter out interference signals outside the receiving frequency band. Specifically, the acoustic watch filter converts an input signal of an electric wave into mechanical energy by using a Transducer (Transducer) by using the piezoelectric characteristics of a piezoelectric material, and converts the mechanical energy into an electric signal after processing, so as to achieve the purpose of filtering unnecessary interference signals.
A receiving channel 403 for receiving the signal after the filtering by the acoustic surface filter.
In the prior art, the sounding filter makes the target uplink signal reach the receiving channel, and after the target uplink signal enters the receiving channel, the baseband unit is required to detect the interference frequency point, and according to the detected interference magnitude of each frequency point, scheduling modes such as frequency selection are adopted to avoid the interference frequency point to schedule the service.
In the embodiment of the invention, the downlink interference signal passes through the low-noise amplifying unit and enters the receiving channel through the impedance matching unit by arranging the signal coupling link, so that the same detection process of the downlink interference signal and the uplink interference signal is realized through the baseband unit.
Specifically, as shown in fig. 4, the signal coupling link 1026 includes: a coupling unit 404, a first link selection unit 405, a second link selection unit 406, an impedance matching unit 407, and a third link selection unit 408.
Wherein, the input end of the coupling unit 404 is connected with the antenna of the base station, and the first link selection unit 402 is disposed between the output end of the coupling unit 404 and the input end of the low noise amplification unit 401; an input end of the second link selection unit 406 is connected with an output end of the low noise amplification unit 401, and the impedance matching unit 407 and the acoustic table filtering unit 402 are connected in parallel between the output end of the second link selection unit 406 and an input end of the third link selection unit 408; an output of the third link selection unit 408 is connected to the receive channel 403.
In a specific implementation, the coupling unit is configured to couple out a signal to be detected from a signal received by the antenna.
It should be understood that, since the control unit controls the first link selection unit again after the control signal transmission link is turned off, the coupling unit is communicated with the low noise amplification unit. At this time, since the signal transmitting link is already turned off, the signal transmitting link does not transmit the target downlink signal any more, and there are a large number of downlink interference signals in the signals received by the corresponding antennas, and in general, the downlink interference signals cannot reach the low-noise amplifying unit due to the filtering effect of the duplex filter. In the embodiment of the invention, the control unit controls the first link selection unit to communicate the coupling unit with the low-noise amplification unit, so that the downlink interference signal can be transmitted to the low-noise amplification unit through the coupling unit. The downlink interference signal is a signal to be detected.
The coupling unit according to the embodiment of the present invention is not limited to use of an existing coupler, but includes other customized coupling circuits, which are not limited in this regard.
Specifically, the first link selection unit is used for transmitting the signal to be detected to the low noise amplifier unit. Wherein the first link selection unit includes, but is not limited to, a radio frequency switch, a channel selection switch, and the like.
It should be understood that the first link selection unit serves as a channel selection switch, and the control unit controls the channel selection switch to communicate the link between the coupling unit and the low noise amplification unit so that the signal to be detected is transmitted to the low noise amplification unit.
The second link selection unit is used for transmitting the signal to be detected passing through the low noise amplifier unit to the third link selection unit. Wherein the second link selection unit includes, but is not limited to, a radio frequency switch, a channel selection switch, and the like.
The third link selection unit is used for transmitting the signal to be detected to the receiving channel. Wherein the third link selection unit includes, but is not limited to, a radio frequency switch, a channel selection switch, and the like.
In the embodiment of the invention, the impedance matching unit is arranged between the second link selection unit and the third link selection unit to adjust the impedance between the second link selection unit and the third link selection unit so that the impedance between the second link selection unit and the third link selection unit is matched. By introducing the signal coupling link, the existing signal receiving link is multiplexed, so that the downlink interference signal can be detected, the base station can avoid the downlink interference frequency band, perform service scheduling, and improve the spectrum efficiency and the user experience in the downlink interference scene. Compared with the current feedback sub-band CQI mode of the terminal equipment, the method saves signaling resource consumption and has higher interference detection accuracy and timeliness.
As can be seen from the above analysis, the signal transceiver circuit provided by the embodiment of the present invention includes a duplex filter, a signal transmitting link, a signal receiving link and a signal coupling link, where the signal transceiver circuit is communicatively connected to a control unit, and after the control unit responds to a downlink signal detection instruction and controls the signal transmitting link to be closed based on a corresponding detection instruction, the signal coupling link is further controlled to be communicated with the signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link. The efficiency and the accuracy of the detection of the downlink interference signals of the base station are improved, and meanwhile, the user experience effect is improved.
Referring to fig. 5, fig. 5 is a flowchart illustrating an implementation of a method for detecting downlink interference of a base station according to an embodiment of the present invention. The method for detecting the downlink interference of the base station can be implemented by the control unit shown in fig. 1.
As shown in fig. 5, the method for detecting downlink interference of the base station includes steps S501 to S502. The details are as follows:
s501, responding to a downlink interference signal detection instruction to a base station, and controlling a signal transmitting link of the signal receiving and transmitting circuit to be closed based on the detection instruction.
The downlink interference signal detection instruction to the base station can be triggered by a worker. Specifically, after detecting that the communication quality is poor or receiving the detection notification, the monitoring device triggers a downlink interference signal detection instruction, and sends the downlink interference signal detection instruction to the control unit.
In the embodiment of the invention, after the downlink interference signal detection instruction of the base station is responded, the signal transmitting link of the signal receiving and transmitting circuit is controlled to be closed based on the detection instruction, so that the transmitting link is prevented from continuously transmitting the target downlink signal, and the target downlink signal and the downlink interference signal are mixed, thereby improving the detection efficiency and accuracy of the downlink interference signal.
And S502, after the signal transmitting link is detected to be closed, controlling the signal coupling link of the signal receiving and transmitting circuit to be communicated with the signal receiving link so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and detecting a downlink interference signal in the signal to be detected through a baseband unit in the signal receiving link.
In an embodiment, the signal receiving link comprises: the low-noise amplifying unit, the sound surface filter and the receiving channel; the signal coupling link includes: the device comprises a coupling unit, a first link selection unit, a second link selection unit, an impedance matching unit and a third link selection unit; the first link selection unit is arranged between the output end of the coupling unit and the input end of the low-noise amplification unit; the input end of the second link selection unit is connected with the output end of the low-noise amplification unit, and the impedance matching unit and the acoustic surface filtering unit are connected between the output end of the second link selection unit and the input end of the third link selection unit in parallel; and the output end of the third link selection unit is connected with the receiving channel.
After detecting that the signal transmitting link is closed, controlling the preset signal coupling link to be communicated with the signal receiving link may include: after the signal transmitting link is detected to be closed, the first link selection unit is controlled to communicate the output port of the coupling unit with the input port of the low-noise amplifying unit; if detecting that a signal flows through the low-noise amplifying unit, controlling the second link selecting unit to be communicated with the impedance matching circuit; and if the signal is detected to pass through the impedance matching circuit, controlling the third link selection unit to be communicated with the signal receiving link.
As can be seen from the above analysis, in the method for detecting downlink interference of a base station according to the embodiment of the present invention, a signal transmitting link of the base station is controlled to be closed based on a detection instruction in response to the detection instruction of a downlink interference signal to the base station; and after the signal transmitting link is detected to be closed, controlling the signal coupling link of the signal receiving and transmitting circuit to be communicated with the signal receiving link so as to enable a signal to be detected to be transmitted to the signal receiving link through the signal coupling link, and detecting a downlink interference signal in the signal to be detected through a baseband unit in the signal receiving link. By controlling the conduction of the signal coupling link and the signal receiving link in the signal receiving and transmitting circuit, the signal to be detected is transmitted to the signal receiving link through the signal coupling link, and then the downlink interference signal in the signal to be detected can be detected through the baseband unit on the signal receiving link, so that the efficiency and the accuracy of the detection of the downlink interference signal of the base station are improved, and the user experience effect is improved.
Referring to fig. 6, fig. 6 is a schematic block diagram of a control unit according to an embodiment of the present invention.
As shown in fig. 6, the control unit 104 includes a processor 601, a memory 602, a communication interface 603, and a bus 604. The processor 601, the memory 602, and the communication interface 603 communicate via the bus 604, or may communicate via other means such as wireless transmission. The memory 602 stores executable program codes, and the processor 601 may invoke the program codes stored in the memory 602 to perform the method for detecting the downlink interference of the base station in the foregoing method embodiment. That is, the above-described method for detecting downlink interference of a base station shown in fig. 6 may be implemented by the processor 601 in the control unit shown in fig. 6 calling the program code stored in the memory 602 to execute.
It should be appreciated that in embodiments of the present invention, the processor 601 may be a central processing unit CPU, the processor 601 may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or any conventional processor or the like.
The memory 602 may include read only memory and random access memory, and provides instructions and data to the processor 601. The memory 602 may also include non-volatile random access memory. For example, the memory 602 may also store data sets.
The memory 602 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).
The bus 604 may include a power bus, a control bus, a status signal bus, and the like in addition to a data bus. But for clarity of illustration, the various buses are labeled as bus 604 in the figures.
It should be understood that the control unit 104 according to the embodiment of the present invention corresponds to a corresponding main body in performing the method shown in fig. 6 according to the embodiment of the present invention, and is not described herein for brevity. Illustratively, a computer program stored on the memory 602 in the control unit 104 and executable by the processor 601, when executed by the processor 601, performs the steps of:
responding to a downlink interference signal detection instruction of a base station, and controlling a signal transmitting link of the signal receiving and transmitting circuit to be closed based on the detection instruction;
after the signal transmitting link is detected to be closed, a signal coupling link of the signal receiving and transmitting circuit is controlled to be communicated with a signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link.
In an embodiment, the signal receiving link comprises: the low-noise amplifying unit, the sound surface filter and the receiving channel; the signal coupling link includes: the device comprises a coupling unit, a first link selection unit, a second link selection unit, an impedance matching unit and a third link selection unit; the first link selection unit is arranged between the output end of the coupling unit and the input end of the low-noise amplification unit; the input end of the second link selection unit is connected with the output end of the low-noise amplification unit, and the impedance matching unit and the acoustic surface filtering unit are connected between the output end of the second link selection unit and the input end of the third link selection unit in parallel; the output end of the third link selection unit is connected with the receiving channel;
after the signal transmitting link is detected to be closed, a preset signal coupling link is controlled to be communicated with a signal receiving link, and the method comprises the following steps:
after the signal transmitting link is detected to be closed, the first link selection unit is controlled to communicate the output port of the coupling unit with the input port of the low-noise amplifying unit;
if detecting that a signal flows through the low-noise amplifying unit, controlling the second link selecting unit to be communicated with the impedance matching circuit;
and if the signal is detected to pass through the impedance matching circuit, controlling the third link selection unit to be communicated with the signal receiving link.
In addition, the invention also provides a computer readable storage medium, the computer readable storage medium stores a computer program, the computer program includes program instructions, and the processor executes the program instructions to implement the steps of the method for detecting the downlink interference of the base station provided by the above embodiments of the invention.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware embodiment, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
It should be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The method for detecting the downlink interference of the base station is characterized by comprising the following steps:
responding to a downlink interference signal detection instruction of a base station, and controlling a signal transmitting link of a signal receiving and transmitting circuit to be closed based on the detection instruction;
after the signal transmitting link is detected to be closed, a signal coupling link of the signal receiving and transmitting circuit is controlled to be communicated with a signal receiving link, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link.
2. The method for detecting downlink interference of a base station according to claim 1, wherein the signal receiving link comprises: the low-noise amplifying unit, the sound surface filter and the receiving channel; the signal coupling link includes: the device comprises a coupling unit, a first link selection unit, a second link selection unit, an impedance matching unit and a third link selection unit; the first link selection unit is arranged between the output end of the coupling unit and the input end of the low-noise amplification unit; the input end of the second link selection unit is connected with the output end of the low-noise amplification unit, and the impedance matching unit and the acoustic surface filtering unit are connected between the output end of the second link selection unit and the input end of the third link selection unit in parallel; the output end of the third link selection unit is connected with the receiving channel;
after detecting that the signal transmitting link is closed, controlling a preset signal coupling link to be communicated with a signal receiving link, wherein the method comprises the following steps:
after the signal transmitting link is detected to be closed, the first link selection unit is controlled to communicate the output port of the coupling unit with the input port of the low-noise amplifying unit;
if detecting that a signal flows through the low-noise amplifying unit, controlling the second link selecting unit to be communicated with the impedance matching circuit;
and if the signal is detected to pass through the impedance matching circuit, controlling the third link selection unit to be communicated with the signal receiving link.
3. A signal transceiving circuit, said signal transceiving circuit being in communication with a control unit, comprising:
a duplex filter;
a signal transmitting link for transmitting a downlink target signal;
a signal receiving link for receiving an uplink target signal;
and the signal coupling link is controlled by the control unit to be communicated with the signal receiving link after the signal transmitting link is controlled to be closed based on the detection instruction, so that a signal to be detected is transmitted to the signal receiving link through the signal coupling link, and a downlink interference signal in the signal to be detected is detected through a baseband unit in the signal receiving link.
4. The signal transceiving circuit according to claim 3, wherein said signal receiving link comprises a low noise amplification unit, a saw filter, and a receive path; the signal coupling link comprises a coupling unit, a first link selection unit, a second link selection unit, an impedance matching unit and a third link selection unit; the first link selection unit is arranged between the output end of the coupling unit and the input end of the low-noise amplification unit; the input end of the second link selection unit is connected with the output end of the low-noise amplification unit, and the impedance matching unit and the acoustic surface filtering unit are connected between the output end of the second link selection unit and the input end of the third link selection unit in parallel; and the output end of the third link selection unit is connected with the receiving channel.
5. The signal transceiving circuit according to claim 4, wherein said coupling unit is configured to couple out said signal to be detected from a signal received by said antenna.
6. The signal transceiving circuit according to claim 4, wherein said first link selection unit is configured to cause said signal to be detected to be transmitted to said low noise amplifier unit.
7. The signal transceiving circuit according to claim 4, wherein said second link selection unit is configured to cause said signal to be detected that has passed through said low noise amplifier unit to be transmitted to a third link selection unit.
8. The signal transceiving circuit according to claim 4, wherein said third link selection unit is configured to cause said signal to be detected to be transmitted to said receive path.
9. A control unit, characterized in that the control unit comprises a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for enabling a connection communication between the processor and the memory, wherein the computer program, when being executed by the processor, implements the steps of the base station downlink interference detection method according to any one of claims 1 or 2.
10. A storage medium for computer readable storage, wherein the storage medium stores one or more programs executable by one or more processors to implement the steps of the base station downlink interference detection method of any one of claims 1 or 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841692.7A CN117459957A (en) | 2022-07-18 | 2022-07-18 | Base station downlink interference detection method, circuit, control unit and storage medium |
| PCT/CN2023/076155 WO2024016645A1 (en) | 2022-07-18 | 2023-02-15 | Base station downlink interference detection method, circuit, control unit, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210841692.7A CN117459957A (en) | 2022-07-18 | 2022-07-18 | Base station downlink interference detection method, circuit, control unit and storage medium |
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| CN117459957A true CN117459957A (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210841692.7A Pending CN117459957A (en) | 2022-07-18 | 2022-07-18 | Base station downlink interference detection method, circuit, control unit and storage medium |
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| CN (1) | CN117459957A (en) |
| WO (1) | WO2024016645A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050012059A (en) * | 2003-07-24 | 2005-01-31 | 유티스타콤코리아 유한회사 | Apparatus for elevation receiving sensitivity in BTS |
| CN102811069B (en) * | 2012-07-25 | 2014-10-08 | 华为技术有限公司 | Transceiver and interference cancellation method |
| WO2015081514A1 (en) * | 2013-12-04 | 2015-06-11 | 华为技术有限公司 | Method for eliminating self-interference of transmission and reception sharing antenna, transceiver, and communication device |
| CN104956595B (en) * | 2013-12-31 | 2017-06-06 | 华为技术有限公司 | Reduce method, baseband processing unit and the base station of interference |
| CN106330241B (en) * | 2015-06-30 | 2019-09-13 | 南京中兴新软件有限责任公司 | Amplification circuit |
| DE102019117264A1 (en) * | 2019-06-26 | 2020-12-31 | Intel Corporation | Method and apparatus for suppressing interference in a transceiver |
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2022
- 2022-07-18 CN CN202210841692.7A patent/CN117459957A/en active Pending
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2023
- 2023-02-15 WO PCT/CN2023/076155 patent/WO2024016645A1/en unknown
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