CN116232534A - Communication shielding method and device of base station, storage medium and electronic device - Google Patents

Communication shielding method and device of base station, storage medium and electronic device Download PDF

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Publication number
CN116232534A
CN116232534A CN202211676097.9A CN202211676097A CN116232534A CN 116232534 A CN116232534 A CN 116232534A CN 202211676097 A CN202211676097 A CN 202211676097A CN 116232534 A CN116232534 A CN 116232534A
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China
Prior art keywords
synchronization signal
signal
target
frame synchronization
base station
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Inventor
曹永福
杜振南
赵文杰
赵伟涛
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Zhejiang Sunwave Communications Technology Co Ltd
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Zhejiang Sunwave Communications Technology Co Ltd
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Priority to CN202211676097.9A priority Critical patent/CN116232534A/en
Publication of CN116232534A publication Critical patent/CN116232534A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • 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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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a communication shielding method and device of a base station, a storage medium and an electronic device. Wherein the method comprises the following steps: under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals; extracting a frame synchronization signal from a wireless signal as an initial frame synchronization signal; amplifying the initial frame synchronization signal into a target frame synchronization signal; and transmitting a target frame synchronous signal at the current position, wherein the target frame synchronous signal is used for shielding the communication of the target base station. The invention solves the problems of lower communication shielding efficiency and higher radiation energy consumption of the base station in the related technology.

Description

Communication shielding method and device of base station, storage medium and electronic device
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a communication shielding method and apparatus for a base station, a storage medium, and an electronic apparatus.
Background
In life, for example: the anti-disclosure scenes such as examination rooms, secret-related meeting rooms and the like can clearly specify "mobile phone communication is prohibited", at present, a link between mobile equipment and a mobile communication public network is generally blocked through an interference device (such as a sweep frequency interference device, a point frequency interference device, a noise interference device and a fake (detection) base station for adsorbing mobile phones), but because a 5GNR (5G New Radio, global 5G standard based on a brand New air interface design of OFDM) system is developing large-scale deployment, in the future 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) age, the problem of disclosure of a mobile terminal is increasingly highlighted, and meanwhile, greater challenges are presented to information security protection.
In the prior art, a mobile terminal shielding system can shield a mobile terminal with a certain area range, block communication between the mobile terminal and a base station, and a traditional suppression type interference system generates a white noise signal on a mobile communication frequency band, and then sends the white noise signal to an air interface (namely an air interface, which defines a wireless transmission standard between the base station and a mobile phone) for suppressing interference.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a communication shielding method and device of a base station, a storage medium and an electronic device, which are used for at least solving the problems of lower communication shielding efficiency and higher radiation energy consumption of the base station in the related technology.
According to an aspect of an embodiment of the present invention, there is provided a communication shielding method of a base station, including:
under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals;
extracting a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
amplifying the initial frame synchronization signal into a target frame synchronization signal;
and transmitting the target frame synchronization signal at the current position, wherein the target frame synchronization signal is used for shielding communication of the target base station.
Optionally, in an exemplary embodiment, extracting the frame synchronization signal from the wireless signal as an initial frame synchronization signal includes:
identifying a target signal characteristic from the wireless signal, wherein the target signal characteristic is used for representing the characteristic of a frame synchronization signal sent by the target base station;
and extracting the initial frame synchronization signal according to the identified target signal characteristic under the condition that the target signal characteristic is identified.
Optionally, in an exemplary embodiment, identifying the target signal feature from the wireless signal includes:
determining a start identifier of a frame synchronization signal sent by the target base station as the target signal characteristic, wherein the start identifier comprises a main synchronization signal;
the start identifier is identified from the wireless signal.
Optionally, in an exemplary embodiment, extracting the initial frame synchronization signal according to the identified target signal feature includes:
acquiring the primary synchronization signal, a secondary synchronization signal after the primary synchronization signal and a physical broadcast channel;
and determining the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel as the initial frame synchronization signal.
Optionally, in an exemplary embodiment, amplifying the initial frame synchronization signal into a target frame synchronization signal includes:
storing the initial frame synchronization signal and waiting for a target duration, wherein the target period is an integer multiple of the signal period of the frame synchronization signal of the target base station;
and amplifying the initial frame synchronization signal into the target frame synchronization signal under the condition that the target time length is up.
Optionally, in an exemplary embodiment, amplifying the initial frame synchronization signal into the target frame synchronization signal includes:
acquiring beam power of each beam in a plurality of beams included in the initial frame synchronization signal;
acquiring a first beam with the beam power being not the maximum power from the plurality of beams;
enhancing the beam power of the first beam to obtain a second beam;
and combining the second beam and a third beam into the target frame synchronization signal, wherein the third beam is a beam with the maximum beam power in the plurality of beams.
Optionally, in an exemplary embodiment, transmitting the target frame synchronization signal at the current location includes one of:
transmitting the target frame synchronizing signal in advance of the current position by a first time;
and delaying the transmission of the target frame synchronization signal at the current position by a second time.
According to still another embodiment of the present invention, there is also provided a communication shielding apparatus of a base station, including:
the detection module is used for detecting a wireless signal sent by a target base station corresponding to the current position under the condition that the shielding function is started, wherein the target base station is a base station for shielding communication signals;
an extracting module, configured to extract a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
the amplifying module is used for amplifying the initial frame synchronous signal into a target frame synchronous signal;
and the transmitting module is used for transmitting the target frame synchronizing signal at the current position, wherein the target frame synchronizing signal is used for shielding the communication of the target base station.
According to yet another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium having stored therein a computer program, wherein the computer program is configured to perform the communication masking method of the base station described above when run.
According to still another aspect of the embodiment of the present invention, there is further provided an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the communication screening method of the base station through the computer program.
In the embodiment of the invention, under the condition that the shielding function is started, firstly, a wireless signal sent by a target base station of a communication signal to be shielded corresponding to the current position is detected, secondly, a frame synchronization signal is extracted from the wireless signal and used as an initial frame synchronization signal, then the initial frame synchronization signal is amplified into the target frame synchronization signal, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the current position, namely, when the shielding function is started, the frame synchronization signal in the wireless signal sent by the target base station of the communication signal to be shielded is extracted, the acquisition of the initial frame synchronization signal is realized, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the same current position after the initial frame synchronization signal is amplified, so that the shielding of the wireless signal sent by the target base station is realized, the communication shielding signal of the target base station is from the target base station, no additional pollution signal is generated, and the problems of lower communication shielding efficiency and higher radiation energy consumption of the base station in the related technology are solved, and the technical effects of not only improving the communication shielding efficiency of the base station but also reducing radiation are realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic diagram of a hardware environment of a communication shielding method of a base station according to an embodiment of the present application;
fig. 2 is a flow chart of a communication screening method of a base station according to an embodiment of the present application;
fig. 3 is a flow chart of a process of communication masking of a base station according to an embodiment of the present application;
fig. 4 is a schematic diagram of a manner of communication screening of a base station according to an embodiment of the present application;
fig. 5 is a block diagram of a communication shielding apparatus of a base station according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The method embodiments provided in the embodiments of the present application may be performed in a computer terminal, a device terminal, or a similar computing apparatus. Taking a computer terminal as an example, fig. 1 is a schematic diagram of a hardware environment of a communication shielding method of a base station according to an embodiment of the present application. As shown in fig. 1, the computer terminal may include one or more (only one is shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 104 for storing data, and in one exemplary embodiment, may also include a transmission device 106 for communication functions and an input-output device 108. It will be appreciated by those skilled in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the computer terminal described above. For example, a computer terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than the equivalent functions shown in FIG. 1 or more than the functions shown in FIG. 1.
The memory 104 may be used to store computer programs, such as software programs of application software and modules, such as computer programs corresponding to the method of masking base station communications in the embodiments of the present invention, and the processor 102 executes the computer programs stored in the memory 104 to perform various functional applications and data processing, i.e., to implement the methods described above. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located relative to the processor 102, which may be connected to the computer terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is configured to communicate with the internet wirelessly.
In this embodiment, a communication shielding method of a base station is provided and applied to the computer terminal, and fig. 2 is a flowchart of a communication shielding method of a base station according to an embodiment of the present application, as shown in fig. 2, where the flowchart includes the following steps:
step S202, under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals;
step S204, extracting a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
step S206, amplifying the initial frame synchronization signal into a target frame synchronization signal;
and step S208, transmitting the target frame synchronization signal at the current position, wherein the target frame synchronization signal is used for shielding the communication of the target base station.
Through the steps, under the condition that the shielding function is started, firstly, a wireless signal sent by a target base station of a communication signal to be shielded corresponding to the current position is detected, secondly, a frame synchronization signal is extracted from the wireless signal and used as an initial frame synchronization signal, then the initial frame synchronization signal is amplified into the target frame synchronization signal, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the current position, namely, when the shielding function is started, the acquisition of the initial frame synchronization signal is realized by extracting the frame synchronization signal in the wireless signal sent by the target base station of the communication signal to be shielded, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the same current position after the initial frame synchronization signal is amplified, so that the shielding of the wireless signal sent by the target base station is realized, the communication shielding signal of the target base station is from the target base station, no additional pollution signal is generated, and the problems of lower communication shielding efficiency and higher energy consumption of the base station in the related technology are solved, and the technical effects of improving the communication shielding efficiency of the base station and reducing the radiation consumption are realized.
Optionally, in this embodiment, the communication shielding method of the base station may be, but not limited to, applied to a shielding system, for example: in a system applied to mobile equipment, communication between the mobile equipment and a base station is cut off through a shielding system. The method can also be applied to equipment with the communication shielding function of the base station, and the equipment shields signals sent by the base station to cut off the communication between the mobile equipment and the base station.
Optionally, in this embodiment, the method for shielding communication of the base station may be, but is not limited to, applied in a process of connecting a mobile device with the base station, and the mobile device cannot receive a signal sent by the base station by cutting off a signal connected between the base station and the mobile device, so as to realize shielding of a signal of the base station.
In the solution provided in step S202, the shielding function may be, but is not limited to, manually activated, for example: when the shielding function is needed, a worker starts the shielding function to shield communication of a range needing shielding. The shielding function may also be automatically started at a preset time point, for example: the time point when the shielding function needs to be started is determined, and when the time point is reached, the shielding function is automatically started, so that the convenience of the shielding function is enhanced, and the shielding function can be used without manual operation.
Alternatively, in this embodiment, the current location may be, but is not limited to, a location where a device that deploys the communication screening method of the base station is located, which may be, but is not limited to, a target base station for indicating that communication screening is required.
Optionally, in this embodiment, the target base station is configured to perform information transfer between the mobile communication switching center and the mobile terminal, and includes: 5G base station, 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology) base station, and so forth. Which may be, but is not limited to, determined based on the location of the device in which the communication screening method of the base station is deployed, such as: and starting a shielding function, namely, the wireless signal can be detected, and the base station which corresponds to the detected wireless signal and sends out the wireless signal is the target base station.
Alternatively, in the present embodiment, the above-mentioned wireless signal may be, but is not limited to, one signal or a plurality of signals transmitted by one or a plurality of base stations.
In the solution provided in step S204, the frame synchronization signal may be, but is not limited to, a specific signal sequence carried in the wireless signal, for example: taking a 5G base station as an example, a receiving channel is opened, a wireless signal sent by the base station is received, and SSB (Synchronization Signal Block, synchronous signal block) in the 5G wireless signal is identifiable according to the principle of 5G communication standard, so that SSB signal searching can be performed on the wireless signal, and at the moment, the signal sequence of the synchronous signal block SSB in the 5G wireless signal is a frame synchronous signal.
Optionally, in this embodiment, the frame synchronization signal may be, but is not limited to, a sequential full frame of a specific signal carried in the wireless signal, for example: taking the example of receiving the sync signal block SSB sent by the 5G base station, a full frame containing the sync signal block SSB, or the duration of the SSB period (the current SSB period is 20 ms (i.e., 2 frames), wherein the half frame containing the sync signal block SSB is the field of a specific signal sequence carried in the radio signal, and the field contains multiple SSB blocks.
Alternatively, in the present embodiment, the frame synchronization signal may be synchronized by a plurality of synchronization modes, such as: GPS (Global Positioning System ) synchronization, base station air interface synchronization, etc.
In one exemplary embodiment, a frame synchronization signal may be extracted from the wireless signal as an initial frame synchronization signal, but is not limited to, in the following manner: identifying a target signal characteristic from the wireless signal, wherein the target signal characteristic is used for representing the characteristic of a frame synchronization signal sent by the target base station; and extracting the initial frame synchronization signal according to the identified target signal characteristic under the condition that the target signal characteristic is identified.
Optionally, in this embodiment, the above target signal feature is used to indicate the occurrence of a frame synchronization signal in the wireless signal, which may be, but not limited to, a first frame signal of the frame synchronization signal, for example: taking a search for a synchronization signal block SSB in a Radio signal sent from a 5G base station as an example, an NR (New Radio,5G Radio network) synchronization signal block SSB includes: the PSS (Primary Synchronization Signals, primary synchronization signal), SSS (Secondary Synchronization Signals, secondary synchronization signal) and PBCH (Physical Broadcast Channel ) are sequentially selected according to the PSS-SSS-PBCH signal of the SSB signal frame, when the PSS of the time domain carrier RF signal characteristic of the base station service is searched, the SSB signal frame in the SSB signal block is considered to be the target signal characteristic.
In one exemplary embodiment, the target signal characteristics may be, but are not limited to, identified from the wireless signal in the following manner: determining a start identifier of a frame synchronization signal sent by the target base station as the target signal characteristic, wherein the start identifier comprises a main synchronization signal; the start identifier is identified from the wireless signal.
Optionally, in this embodiment, the start identifier is used to indicate the start of the frame synchronization signal in the wireless signal, and may, but is not limited to, determine the start of the frame synchronization signal in the wireless signal according to the start identifier, for example: taking the example of identifying the sync signal block SSB in the radio signal sent by the 5G base station, since the sync signal block SSB has the PSS-SSS-PBCH signal sequence, the start of the sync signal block SSB is considered when the first frame of the PSS signal frame is searched, and the complete sync signal block SSB is considered when the last frame of the PBCH signal sequence is obtained, so that the PSS signal sequence identified as the sync signal block SSB is started.
In one exemplary embodiment, the initial frame synchronization signal may be extracted from the identified target signal features, but is not limited to, in the following manner: acquiring the primary synchronization signal, a secondary synchronization signal after the primary synchronization signal and a physical broadcast channel; and determining the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel as the initial frame synchronization signal.
Alternatively, in this embodiment, the initial frame synchronization signal may be determined according to the above-mentioned primary synchronization signal and the secondary synchronization signal after the primary synchronization signal, and the physical broadcast channel, for example: taking the identification of the synchronization signal block SSB in the radio signal sent by the 5G base station as an example, since the synchronization signal block SSB has the PSS-SSS-PBCH signal sequence, when the first frame of the PSS signal frame (primary synchronization signal) is searched, the start of the synchronization signal block SSB is considered, then the SSS signal sequence (secondary synchronization signal) is acquired, when the last frame of the PBCH signal sequence (physical broadcast channel) is acquired, the complete synchronization signal block SSB is considered, and therefore, when the PSS-SSS-PBCH signal sequence of the SSB is acquired, the initial frame synchronization signal is acquired.
In the solution provided in step S206, the target frame synchronization signal is used to cover the signal sent by the target base station, for example: because the signal intensity of the target frame synchronizing signal is stronger than that of the base station, the target frame synchronizing signal can cover the signal of the base station, and the signal received by the mobile equipment is the target frame synchronizing signal which is stronger than the signal sent by the base station.
In one exemplary embodiment, the initial frame sync signal may be, but is not limited to, amplified to a target frame sync signal in the following manner: storing the initial frame synchronization signal and waiting for a target duration, wherein the target period is an integer multiple of the signal period of the frame synchronization signal of the target base station; and amplifying the initial frame synchronization signal into the target frame synchronization signal under the condition that the target time length is up.
Alternatively, in this embodiment, the target duration may be, but is not limited to, manually set, for example: knowing the signal period of the frame synchronization signal of the target base station, the target duration for storing the initial frame synchronization signal can be adjusted according to, but not limited to, the reaction time of the signal base station and the device deploying the communication screening method of the base station.
Alternatively, in the present embodiment, the initial frame synchronization signal may be amplified to the target frame synchronization signal and then stored, but not limited thereto. Or, the initial frame synchronization signal is stored first and then amplified to the target frame synchronization signal, and the storage space is saved because the initial frame synchronization signal is not amplified during storage.
In one exemplary embodiment, the initial frame synchronization signal may be amplified to the target frame synchronization signal in the following manner, but is not limited to: acquiring beam power of each beam in a plurality of beams included in the initial frame synchronization signal; acquiring a first beam with the beam power being not the maximum power from the plurality of beams; enhancing the beam power of the first beam to obtain a second beam; and combining the second beam and a third beam into the target frame synchronization signal, wherein the third beam is a beam with the maximum beam power in the plurality of beams.
Optionally, in this embodiment, the multiple beams included in the initial frame synchronization signal may be, but not limited to, different powers, and the power of each beam in the initial frame synchronization signal may be, but not limited to, obtained, so that the power of the beam is increased (or gained) for the beam with non-maximum power, thereby achieving the effect of improving the adaptability of the mask to the difference of the beams.
In the technical solution provided in step S208, the current position of the transmission target frame synchronization signal and the wireless signal sent by the detection target base station may be, but not limited to, the same position, which may be, but not limited to, used for ensuring shielding of the wireless signal sent by the same target base station, thereby improving the accuracy of shielding.
In one exemplary embodiment, the target frame synchronization signal may be transmitted at the current location, but is not limited to, in the following manner: transmitting the target frame synchronizing signal in advance of the current position by a first time; and delaying the transmission of the target frame synchronization signal at the current position by a second time.
Alternatively, in this embodiment, the first time may be, but is not limited to, 1/4 symbol time, i.e. a clock difference synchronized with respect to the base station frame signal.
Alternatively, in this embodiment, the second time may be, but is not limited to, 1/4 symbol time, i.e. a clock difference synchronized with respect to the base station frame signal.
Alternatively, in this embodiment, the target frame synchronization signal may be transmitted in advance at the current location by a first time, or the target frame synchronization signal may be transmitted in delay at the current location by a second time, so that the target frame synchronization signal and the signal transmitted by the target base station at this time are not together, i.e. are different in time domain, which causes an obstacle for the mobile device to receive the base station signal.
In an alternative implementation, a process of communication shielding of a base station is provided, and fig. 3 is a flowchart of a process of communication shielding of a base station according to an embodiment of the present application, and as shown in fig. 3, taking shielding of a 5G base station signal as an example, a carrier frequency range supported by an R15 standard of NR is up to 52.6GHz. The propagation loss of the high-frequency carrier is large, and the coverage distance of the wireless signal needs to be increased by adopting a beam forming transmission mode. Due to the limited angle of coverage of each beam, NR covers the service area of the whole cell by means of beam scanning. Beam scanning refers to transmitting physical channels or reference signals using beams of different directions at different times. One cell typically needs to send multiple SSBs to complete one beam sweep so that the synchronization signal covers the service area of the entire cell. The SSBs required to complete a sons scan constitute a SSB burst set. The NR only supports TDM (time-division multiplexing, time division multiplexing) to scan SSB beams, but does not support FDM (Frequency-division multiplexing, frequency division multiplexing) because SSB needs to be received by all UEs (User Equipment) in the system, and FDM is not applicable to UEs using analog beamforming, a procedure of communication masking of a base station is given below:
s302: searching in a cell;
s304: the SSB block (frame synchronization signal) includes information of MIB (master information block, main system module);
s306: acquiring wireless frame synchronization;
s308: receiving the wireless frame with the bandwidth just containing each SSB block signal, and delaying and storing;
s310: forwarding a radio frame of the SSB frame signal at a time aligned with a next frame (an integer multiple of the SSB frame period time);
s312: s308 continues from S310.
In the above embodiment, the 5G base station is taken as an example, and the 5G multi-beam includes SSB blocks corresponding to the number of beams. The SSB burst set is a set of individual SSB blocks within a field. NR synchronization blocks (SSB) include PSS, SSS, and PBCH. The PBCH contains demodulation reference signals (DM-RS) UE, when the UE receives the NR system, the UE first detects PSS and SSS to obtain downlink time-frequency synchronization and PCID (Physical Cell Identity, physical cell identifier), and then decodes the PBCH. The PBCH includes a Master Information Block (MIB) and other information related to SSB transmission time. The MIB carries a part of minimum system information required for the UE to access the NR system. Several SSBs constitute an SSB Burst set SSB Burst, which is transmitted periodically. The PSS and SSS and PBCH (corresponding to bandwidth 1.08 MHz) of the corresponding 4G are also the corresponding SSBs.
In an alternative implementation manner, fig. 4 is a schematic diagram of a manner of communication shielding of a base station according to an embodiment of the present application, as shown in fig. 4, taking shielding of a 5G base station signal as an example, first, signals sent by the 5G base station are received, PSS-SSS-PBCH signals of a (radio) frame of the 5G base station are used to sequentially search for a time-domain carrier radio frequency signal characteristic PSS of a base station service, when an SSB signal is searched, synchronization is obtained, a filter for identifying and judging that the 5G signal adopts a corresponding bandwidth, that is, just receiving the SSB signal bandwidth, receives the frame, in which the frequency bandwidth is just the SSB width, in the radio frame signal of the base station of the service, and then delay operation is performed, wherein the delay time is an integer SSB period time, and a signal aligned with a time-forwarding frame is used to shield the base station signal. The SSB blocks can be further identified and the signal strength of the weaker beam (SSB) can be properly increased before forwarding, and the delay (or advance) 1/4 symbol time can be increased to synchronize the clock difference relative to the base station frame signal.
Firstly, the strength of the interference signal (target frame synchronization signal) is only 3dB greater than the signal strength of the 5G public network, so that the 5G base station signal can be completely shielded, the interference signal (target frame synchronization signal) does not interfere with the 5G uplink signal, and no additional influence is generated on the original signal of the base station, therefore, the interference signal (target frame synchronization signal) only occupies a small amount of time-frequency resources, the power of a shielding device for the communication shielding method of the base station can be greatly reduced, and the environment is protected and high efficiency is realized. Secondly, the base station signals which are scanned to all frequencies needing to be shielded can be processed in the same way, so the shielding efficiency is higher, the shielding range is more stable and larger, the equipment can have longer service life due to reduced power consumption, and the use cost is saved.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
Also provided in this embodiment is a communication shielding device of a base station, and fig. 5 is a block diagram of a communication shielding device of a base station according to an embodiment of the present application, as shown in fig. 5, where the device includes:
the detection module 52 is configured to detect, when it is detected that the shielding function is started, a wireless signal sent by a target base station corresponding to a current location, where the target base station is a base station to be shielded from a communication signal;
an extracting module 54, configured to extract a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
an amplifying module 56, configured to amplify the initial frame synchronization signal into a target frame synchronization signal;
a transmitting module 58, configured to transmit the target frame synchronization signal at the current location, where the target frame synchronization signal is used to mask communications of the target base station.
By the device, under the condition that the shielding function is started, firstly, the wireless signal sent by the target base station of the communication signal to be shielded corresponding to the current position is detected, secondly, the frame synchronization signal is extracted from the wireless signal and used as an initial frame synchronization signal, then the initial frame synchronization signal is amplified to be the target frame synchronization signal, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the current position, namely, when the shielding function is started, the frame synchronization signal in the wireless signal sent by the target base station of the communication signal to be shielded is extracted, the acquisition of the initial frame synchronization signal is realized, and then the target frame synchronization signal used for shielding the communication of the target base station is transmitted at the same current position after the initial frame synchronization signal is amplified, so that the shielding of the wireless signal sent by the target base station is realized, the communication shielding signal of the target base station is from the target base station, no additional pollution signal is generated, and the problems of lower communication shielding efficiency and higher energy consumption of the base station in the related technology are solved, and the technical effects of improving the communication shielding efficiency of the base station and reducing the radiation are realized.
In one exemplary embodiment, the extraction module includes:
an identifying unit, configured to identify a target signal feature from the wireless signal, where the target signal feature is used to characterize a characteristic of a frame synchronization signal sent by the target base station;
and the extraction unit is used for extracting the initial frame synchronization signal according to the identified target signal characteristic under the condition that the target signal characteristic is identified.
In an exemplary embodiment, the identifying unit is configured to: determining a start identifier of a frame synchronization signal sent by the target base station as the target signal characteristic, wherein the start identifier comprises a main synchronization signal; the start identifier is identified from the wireless signal.
In an exemplary embodiment, the extracting unit is configured to: acquiring the primary synchronization signal, a secondary synchronization signal after the primary synchronization signal and a physical broadcast channel; and determining the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel as the initial frame synchronization signal.
In one exemplary embodiment, the amplifying module includes:
a storage unit, configured to store the initial frame synchronization signal and wait for a target duration, where the target period is an integer multiple of a signal period of the frame synchronization signal of the target base station;
and the amplifying unit is used for amplifying the initial frame synchronizing signal into the target frame synchronizing signal under the condition that the target time length is up.
In an exemplary embodiment, the amplifying unit is configured to: acquiring beam power of each beam in a plurality of beams included in the initial frame synchronization signal; acquiring a first beam with the beam power being not the maximum power from the plurality of beams; enhancing the beam power of the first beam to obtain a second beam; and combining the second beam and a third beam into the target frame synchronization signal, wherein the third beam is a beam with the maximum beam power in the plurality of beams.
In one exemplary embodiment, the transmitting module includes:
a first transmitting unit, configured to transmit the target frame synchronization signal in advance by a first time at the current location;
and the second transmitting unit is used for delaying the second time to transmit the target frame synchronizing signal at the current position.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.
Embodiments of the present application also provide a storage medium including a stored program, wherein the program performs the method of any one of the above when run.
Alternatively, in the present embodiment, the above-described storage medium may be configured to store program code for performing the steps of:
s1, under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals;
s2, extracting a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
s3, amplifying the initial frame synchronizing signal into a target frame synchronizing signal;
and S4, transmitting the target frame synchronizing signal at the current position, wherein the target frame synchronizing signal is used for shielding the communication of the target base station.
In one exemplary embodiment, the computer readable storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing a computer program.
Embodiments of the present application also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, where the transmission device is connected to the processor, and the input/output device is connected to the processor.
Alternatively, in the present embodiment, the above-described processor may be configured to execute the following steps by a computer program:
s1, under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals;
s2, extracting a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
s3, amplifying the initial frame synchronizing signal into a target frame synchronizing signal;
and S4, transmitting the target frame synchronizing signal at the current position, wherein the target frame synchronizing signal is used for shielding the communication of the target base station.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A communication screening method of a base station, comprising:
under the condition that the shielding function is started, detecting a wireless signal sent by a target base station corresponding to the current position, wherein the target base station is a base station for shielding communication signals;
extracting a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
amplifying the initial frame synchronization signal into a target frame synchronization signal;
and transmitting the target frame synchronization signal at the current position, wherein the target frame synchronization signal is used for shielding communication of the target base station.
2. The method of claim 1, wherein said extracting a frame synchronization signal from said wireless signal as an initial frame synchronization signal comprises:
identifying a target signal characteristic from the wireless signal, wherein the target signal characteristic is used for representing the characteristic of a frame synchronization signal sent by the target base station;
and extracting the initial frame synchronization signal according to the identified target signal characteristic under the condition that the target signal characteristic is identified.
3. The method of claim 2, wherein said identifying target signal characteristics from said wireless signal comprises:
determining a start identifier of a frame synchronization signal sent by the target base station as the target signal characteristic, wherein the start identifier comprises a main synchronization signal;
the start identifier is identified from the wireless signal.
4. A method according to claim 3, wherein said extracting the initial frame synchronization signal from the identified target signal features comprises:
acquiring the primary synchronization signal, a secondary synchronization signal after the primary synchronization signal and a physical broadcast channel;
and determining the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel as the initial frame synchronization signal.
5. The method of claim 1, wherein the amplifying the initial frame synchronization signal into a target frame synchronization signal comprises:
storing the initial frame synchronization signal and waiting for a target duration, wherein the target period is an integer multiple of the signal period of the frame synchronization signal of the target base station;
and amplifying the initial frame synchronization signal into the target frame synchronization signal under the condition that the target time length is up.
6. The method of claim 5, wherein said amplifying said initial frame synchronization signal into said target frame synchronization signal comprises:
acquiring beam power of each beam in a plurality of beams included in the initial frame synchronization signal;
acquiring a first beam with the beam power being not the maximum power from the plurality of beams;
enhancing the beam power of the first beam to obtain a second beam;
and combining the second beam and a third beam into the target frame synchronization signal, wherein the third beam is a beam with the maximum beam power in the plurality of beams.
7. The method of claim 1, wherein said transmitting said target frame synchronization signal at said current location comprises one of:
transmitting the target frame synchronizing signal in advance of the current position by a first time; and delaying the transmission of the target frame synchronization signal at the current position by a second time.
8. A communication barrier apparatus for a base station, comprising:
the detection module is used for detecting a wireless signal sent by a target base station corresponding to the current position under the condition that the shielding function is started, wherein the target base station is a base station for shielding communication signals;
an extracting module, configured to extract a frame synchronization signal from the wireless signal as an initial frame synchronization signal;
the amplifying module is used for amplifying the initial frame synchronous signal into a target frame synchronous signal;
and the transmitting module is used for transmitting the target frame synchronizing signal at the current position, wherein the target frame synchronizing signal is used for shielding the communication of the target base station.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program performs the method of any one of claims 1 to 7.
10. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method according to any of the claims 1-7 by means of the computer program.
CN202211676097.9A 2022-12-26 2022-12-26 Communication shielding method and device of base station, storage medium and electronic device Pending CN116232534A (en)

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