CN109413666B - Data monitoring method of sniffer, storage medium and terminal - Google Patents
Data monitoring method of sniffer, storage medium and terminal Download PDFInfo
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- CN109413666B CN109413666B CN201811123211.9A CN201811123211A CN109413666B CN 109413666 B CN109413666 B CN 109413666B CN 201811123211 A CN201811123211 A CN 201811123211A CN 109413666 B CN109413666 B CN 109413666B
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A data monitoring method of a sniffer, the sniffer, a storage medium and a terminal are provided, wherein the sniffer comprises: a first set of receive antennas adapted to receive a transmit signal of a first communication device; a second set of receive antennas adapted to receive a transmit signal of a second communication device; and the information combining unit is suitable for processing the signals received by the first receiving antenna set and the second receiving antenna set so as to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together. By the technical scheme provided by the invention, the sniffer can work in a full-duplex communication scene, and can obtain the packet information transmitted by both communication parties.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a data monitoring method for a sniffer, a storage medium, and a terminal.
Background
Sniffers (Sniffer) are often used in Wireless Local Area Network (WLAN) testing. The traditional WLAN sniffer (sniffer) design is mainly used for half-duplex communication, and plays a good role in helping to debug and optimize WLAN equipment.
The Institute of Electrical and Electronics Engineers 802.11 Full-Duplex Interest Group (Institute of Electrical and Electronics Engineers 802.11Full Duplex Topic Interest Group, IEEE802.11FD TIG) introduced the concept of In-band Full Duplex (IFD) that allows Full-Duplex communications with IEEE802.11 systems. However, the conventional WLAN sniffer cannot simultaneously receive the transmission signals of both communication parties, and is difficult to operate in full duplex communication.
Currently, without sniffer solutions working in an in-band full-duplex communication scenario, the ability of sniffers to be used for in-band full-duplex communication has become one of the challenges we need to face.
Disclosure of Invention
The invention solves the technical problem that in the wireless in-band full duplex communication, the sniffer obtains the packet information transmitted by both communication parties as well.
To solve the above technical problem, an embodiment of the present invention provides a sniffer, including: a first set of receive antennas adapted to receive a transmit signal of a first communication device; a second set of receive antennas adapted to receive a transmit signal of a second communication device; and the information combining unit is suitable for processing the signals received by the first receiving antenna set and the second receiving antenna set so as to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together.
Optionally, the distance between the first set of receiving antennas and the first communication device is smaller than the distance between the first set of receiving antennas and the second communication device; the second set of receive antennas is less distant from the second communications device than the first communications device.
Optionally, the first receiving antenna set and the second receiving antenna set are both smart antennas.
Optionally, the first receiving antenna set comprises a first electromagnetic wave shielding unit, and the first electromagnetic wave shielding unit is adapted to shield at least a transmission signal of the second communication device; the second set of receive antennas comprises a second electromagnetic wave shielding unit adapted to shield at least a transmitted signal of the first communication device.
Optionally, the first receiving antenna set includes a first decoder, and the first decoder is adapted to decode a transmission signal of the first communication device to obtain a first decoded signal; the second set of receive antennas includes a second decoder adapted to decode transmit signals of the second set of receive antennas to obtain a second decoded signal.
Optionally, the information combining unit is adapted to combine the first decoded signal and the second decoded signal to obtain the packet information transmitted by the first communication device and the second communication device together.
Optionally, the information combining unit is adapted to decode signals obtained from the first receiving antenna set and the second receiving antenna set, and combine the decoded signals to obtain the packet information transmitted by the first communication device and the second communication device together.
Optionally, the information combining unit is connected to the first receiving antenna set and the second receiving antenna set by wires; or, the information combining unit is wirelessly connected to the first receiving antenna set and the second receiving antenna set.
Optionally, the information combining unit is further adapted to receive packet information transmitted by a half-duplex sniffer, which refers to a sniffer operating in half-duplex mode.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a data monitoring method for a sniffer, where the sniffer includes a first receiving antenna set, a second receiving antenna set, and an information combining unit, and the data monitoring method includes: receiving a transmit signal of a first communication device with the first set of receive antennas; receiving a transmission signal of a second communication device using the second set of receive antennas; and processing the signals received by the first receiving antenna set and the second receiving antenna set by using the information combination unit to obtain the grouping information transmitted by the first communication equipment and the second communication equipment.
Optionally, the distance between the first set of receiving antennas and the first communication device is smaller than the distance between the first set of receiving antennas and the second communication device; the second set of receive antennas is less distant from the second communications device than the first communications device.
Optionally, the first receiving antenna set and the second receiving antenna set are both smart antennas.
Optionally, the first receiving antenna set includes a first electromagnetic wave shielding unit, and when the first receiving antenna set is used to receive the transmission signal of the first communication device, the first electromagnetic wave shielding unit is used to shield at least the transmission signal of the second communication device; the second receiving antenna set includes a second electromagnetic wave shielding unit that shields at least the transmission signal of the first communication device when the transmission signal of the second communication device is received by the second receiving antenna set.
Optionally, the first receiving antenna set includes a first decoder, and when the first receiving antenna set is used to receive the transmission signal of the first communication device, the first decoder is used to decode the transmission signal of the first communication device; the second set of receive antennas includes a second decoder that decodes a transmit signal of the second communication device when the transmit signal of the second communication device is received using the second set of receive antennas.
Optionally, the processing, by the information combining unit, signals received by the first receiving antenna set and the second receiving antenna set includes: and combining the decoding signals received from the first receiving antenna set and the second receiving antenna set by using the information combining unit to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together.
Optionally, the processing, by the information combining unit, signals received by the first receiving antenna set and the second receiving antenna set includes: decoding signals received from the first and second sets of receive antennas using the information combining unit, and combining the decoded signals.
Optionally, the processing, by the information combining unit, signals received by the first receiving antenna set and the second receiving antenna set includes: the information combination unit is used for receiving the transmitting signals of the first receiving antenna set and the second receiving antenna set in a wired mode and processing the transmitting signals; or, wirelessly receiving the transmission signals of the first receiving antenna set and the second receiving antenna set by using the information combining unit, and processing the transmission signals.
Optionally, the data monitoring method further includes: receiving, by the information combining unit, packet information of a half-duplex sniffer, which refers to a sniffer operating in half-duplex mode.
In order to solve the above technical problem, an embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the data monitoring method of the sniffer are executed.
In order to solve the technical problem, an embodiment of the present invention further provides a terminal, where the terminal includes the sniffer.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
an embodiment of the present invention provides a sniffer, including: a first set of receive antennas adapted to receive a transmit signal of a first communication device; a second set of receive antennas adapted to receive a transmit signal of a second communication device; and the information combining unit is suitable for processing the transmitting signals received by the first receiving antenna set and the second receiving antenna set so as to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together. The sniffer provided by the embodiment of the invention can be applied to a wireless in-band full-duplex communication scene, two groups of antenna sets are used for respectively receiving the transmitting signals from two communication parties, and the information combination unit is used for combining to obtain the packet information transmitted by the two communication parties, so that a complete sniffer information report can be obtained.
Further, the first set of receive antennas is less distant from the first communication device than from the second communication device; the second set of receive antennas is less distant from the second communications device than the first communications device. By the technical scheme provided by the embodiment of the invention, the two groups of receiving antennas of the sniffer can be respectively close to the respective received signals, so as to obtain the received signals with better quality.
Further, the first receiving antenna set and the second receiving antenna set are both smart antennas, and by the technical scheme provided by the embodiment of the invention, the smart antennas can be used for eliminating interference caused by other signals in a band as much as possible, so that the receiving of the transmitted signals from different communication devices is further facilitated.
Further, the first set of receiving antennas comprises a first electromagnetic wave shielding unit adapted to shield at least a transmission signal of the second communication device; the second set of receive antennas comprises a second electromagnetic wave shielding unit adapted to shield at least a transmitted signal of the first communication device. By the technical scheme provided by the embodiment of the invention, the electromagnetic shielding material can be used for eliminating the interference caused by other signals in the band as much as possible, so that the transmission signals from different communication devices can be further received.
Drawings
Fig. 1 is a schematic structural diagram of a sniffer according to an embodiment of the present invention;
FIG. 2 is a diagram of an exemplary application scenario in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of another exemplary application scenario of an embodiment of the present invention;
FIG. 4 is a schematic diagram of another exemplary application scenario of an embodiment of the present invention;
fig. 5 is a flowchart illustrating a data snooping method of a sniffer according to an embodiment of the present invention.
Detailed Description
As understood by those skilled in the art, as background, sniffers in the prior art cannot be applied in wireless in-band full duplex communication.
The traditional sniffer mainly reuses WLAN hardware and combines software functions to achieve the purpose of receiving signals. Since the transmitting WLAN is in half-duplex communication mode, the conventional sniffer cannot support IFD scenarios.
To solve the above technical problem, an embodiment of the present invention provides a sniffer, including: a first set of receive antennas adapted to receive a transmit signal of a first communication device; a second set of receive antennas adapted to receive a transmit signal of a second communication device; and the information combining unit is suitable for processing the transmitting signals received by the first receiving antenna set and the second receiving antenna set so as to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together. The sniffer provided by the embodiment of the invention can be applied to a wireless in-band full-duplex communication scene, two groups of antenna sets are used for respectively receiving the transmitting signals from two communication parties, and the information combination unit is used for combining to obtain the packet information transmitted by the two communication parties, so that a complete sniffer information report can be obtained.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below.
Fig. 1 is a schematic structural diagram of a sniffer according to an embodiment of the present invention. Referring to fig. 1, the sniffer 100 may comprise a first set of receiving antennas 101, a second set of receiving antennas 102 and an information combining unit 103.
In particular, the first set of receive antennas 101 may be used to receive a transmit signal of a first communication device; the second set of receive antennas 102 may be used to receive a transmit signal of a second communication device; the information combining unit 103 may be configured to process the transmission signals received by the first receiving antenna set and the second receiving antenna set to obtain the packet information transmitted by the first communication device and the second communication device together.
In a specific implementation, the first receiving antenna set 101 and the second receiving antenna set 102 may be connected to the information combining unit 103 by wires. Alternatively, the first set of receiving antennas 101 and the second set of receiving antennas 102 may be wirelessly connected to the information combining unit 103.
It is understood by those skilled in the art that, in a wireless connection, a communication frequency band and a communication mode of a wireless signal between the information combining unit and the first receiving antenna set and/or the second receiving antenna set are different from those of a transmission signal received by the sniffer from both communication parties. When wireless connection is adopted, the information combination unit and the first receiving antenna set and/or the second receiving antenna set may adopt 2.4GHz, 5GHz, 6GHz for communication, and may also adopt millimeter wave communication, optical communication, etc., which are not listed here.
In a specific implementation, the first set of receiving antennas 101 may be close to a transmitter of a signal to be received, for example, the transmitter of the signal to be received is a first communication device. As a non-limiting example, the first communication device may be a WLAN STAtion (STA).
As a non-limiting example, the distance of the first set of receive antennas 101 from the first communication device is less than the distance of the first set of receive antennas 101 from the second communication device.
The second set of receive antennas 102 may be close to the transmitter of the signal to be received, e.g., the transmitter of the signal to be received is a second communication device. As a non-limiting example, the second communication device may be a WLAN Access Point (AP).
The distance of the second set of receive antennas 102 from the second communication device is less than the distance of the second set of receive antennas 102 from the first communication device.
As a non-limiting example, the first set of receive antennas 101 and the second set of receive antennas 102 may be smart antennas.
The smart antenna may also be referred to as an adaptive antenna array, a variable antenna array, a multi-antenna, etc. The intelligent antenna is an antenna which can utilize the combination of a plurality of antenna array elements to process signals and automatically adjust transmitting and receiving directional diagrams so as to achieve optimal performance aiming at different signal environments.
Fig. 2 is a schematic diagram of an exemplary application scenario of an embodiment of the present invention. Referring to fig. 2, a sniffer 200 is used in full-duplex WLAN communications to listen to the respective transmissions of the STA and the AP. The first receiving antenna set 201 and the second receiving antenna set 202 are smart antennas. The first set of receiving antennas 201 may receive signals transmitted by the STA by using a beamforming technique, and eliminate interference signals caused by AP transmission by using a beam pattern. At this time, the first set of receiving antennas 201 may receive the transmission signal from the STA by eliminating the interference of the transmission signal from the AP as much as possible.
The second set of receiving antennas 202 may receive signals transmitted by the AP by using a beamforming technique, and eliminate interference signals caused by STA transmission by using a beam pattern. At this time, the second set of receiving antennas 202 may receive the transmission signal from the AP while eliminating the interference of the transmission signal from the STA as much as possible.
Thereafter, the signals from the first set of receiving antennas 201 and the second set of receiving antennas 202 may be transmitted to the information combining unit 203. The information combining unit 203 may process the transmission signals received by the first receiving antenna set and the second receiving antenna set, and obtain the packet information transmitted by the first communication device and the second communication device, so as to provide a complete sniffer information report.
With continued reference to fig. 1, as a variation, the first receiving antenna set 101 may include a first electromagnetic wave shielding (EM wave shielding) unit (not shown). The second set of receiving antennas 102 may include a second electromagnetic wave shielding unit (not shown).
Wherein the first electromagnetic wave shielding unit and the second electromagnetic wave shielding unit may be hardware modules manufactured using an electromagnetic shielding technology. In a specific implementation, the first electromagnetic wave shielding unit and the second electromagnetic wave shielding unit may be hardware modules made of materials capable of shielding electromagnetic waves.
Those skilled in the art understand that the first electromagnetic wave shielding unit can be used to shield the transmission signal of the second communication device, and preferably, can also shield other interference signals, so that the first receiving antenna set 101 can receive the transmission signal with better signal quality from the first communication device.
Accordingly, the second electromagnetic wave shielding unit may be configured to shield the transmission signal of the first communication device, and preferably, may also shield other interference signals, so that the second set of receiving antennas 102 can receive the transmission signal with better signal quality from the second communication device.
In a specific implementation, the first electromagnetic wave shielding unit may shield signals other than the signal desired to be received (for example, the transmission signal of the first communication device), so that the signal desired to be received may be received by the first set of receiving antennas 101. Similarly, the second electromagnetic wave shielding unit may shield signals other than the signal desired to be received (e.g., the transmission signal of the second communication device) so that the signal desired to be received may be received by the second set of receiving antennas 102.
Fig. 3 is a schematic diagram of yet another exemplary application scenario of an embodiment of the present invention. Referring to fig. 3, a sniffer 300 may be used in full-duplex WLAN communications for listening to the respective transmitted signals of the STA and the AP. Among them, the first reception antenna set 301 may include the first electromagnetic wave shielding unit 3011. The second set of receiving antennas 302 may include a second electromagnetic wave shielding unit 3021.
In a specific implementation, the first electromagnetic wave shielding unit 3011 is configured to eliminate, as much as possible, interference of a transmission signal from an AP by the first receiving antenna set 301 and receive a transmission signal from an STA. With the second electromagnetic wave shielding unit 3021, the second receiving antenna set 302 may eliminate interference of the transmission signal from the STA as much as possible and receive the transmission signal from the AP.
After that, the received signal is transmitted to the information combining unit 303. The information combining unit 303 may be configured to process the transmission signals received by the first receiving antenna set and the second receiving antenna set to obtain the packet information transmitted by the first communication device and the second communication device together.
In an implementation, still taking fig. 1 as an example, in the sniffer 100, a decoder (not shown) for decoding the received signal may be close to the antenna and far away from the information combining unit 103. Alternatively, the decoder for decoding the received signal may be located in the information combining unit 103, apart from the antenna.
Specifically, the first set of receiving antennas 101 may include a first decoder (not shown), and the second set of receiving antennas may include a second decoder (not shown). The first decoder may decode a transmission signal of the first communication device to obtain a first decoded signal; the second decoder may decode the transmission signal of the second set of receiving antennas 102 to obtain a second decoded signal.
Thereafter, the first decoded signal and the second decoded signal may be transmitted to the information combining unit 103. The information combining unit 103 may combine the first decoded signal and the second decoded signal to obtain the packet information transmitted by the first communication device and the second communication device.
As a variation, neither the first set of receiving antennas 101 nor the second set of receiving antennas 102 comprises a decoder. After receiving the signal, the first receiving antenna set 101 and the second receiving antenna set 102 directly transmit the signal to the information combining unit 103. The information combining unit 103 may decode the transmission signal of the first communication device to obtain a first decoded signal; the transmission signal of the second communication device may also be decoded to obtain a second decoded signal.
Then, the information combining unit 103 receives the first decoded signal and the second decoded signal from the first receiving antenna set 101 and the second receiving antenna set 102, and combines the first decoded signal and the second decoded signal to obtain the packet information transmitted by the first communication device and the second communication device.
In an implementation, the sniffer 100 may also receive packet information of a half-duplex sniffer (not shown in fig. 1), which is referred to as a conventional sniffer and operates in half-duplex mode.
Fig. 4 is a schematic diagram of another exemplary application scenario of an embodiment of the present invention. Referring to fig. 4, the sniffer 400 may comprise a first set of receiving antennas 401, the second set of receiving antennas 402 and an information combining unit 403. In addition, the information combining unit 403 can also receive the packet information of the half-duplex sniffer 500, and integrate to obtain a more complete sniffer information report.
Therefore, the sniffer provided by the embodiment of the invention can be applied to a wireless in-band full-duplex communication scene, and can receive the packet information transmitted by both communication parties.
Fig. 5 is a flowchart illustrating a data snooping method of a sniffer according to an embodiment of the present invention. Wherein the sniffer comprises a first set of receive antennas, a second set of receive antennas and an information combining unit.
The sniffer may be used for listening to data transmitted by both parties of an in-band full duplex communication, e.g. for an in-band full duplex WLAN communication. Specifically, the data snooping method may include the steps of:
step S501, receiving a transmitting signal of first communication equipment by utilizing the first receiving antenna set;
step S502, receiving a transmitting signal of a second communication device by utilizing the second receiving antenna set;
step S503, processing the signals received by the first receiving antenna set and the second receiving antenna set by using the information combining unit, so as to obtain the packet information transmitted by the first communication device and the second communication device together.
More specifically, in step S501, a transmission signal of a first communication device may be received using the first set of receive antennas.
The first set of receive antennas may be proximate to the first communication device. In a specific implementation, a distance between the first set of receiving antennas and the first communication device may be smaller than a distance between the first set of receiving antennas and the second communication device.
In a specific implementation, the first set of receiving antennas may be smart antennas, so that the antenna apparatus may be adjusted to better receive signals from the first communication device.
As a modified embodiment, the first receiving antenna set is 1 antenna or a plurality of antennas, and may include a first electromagnetic wave shielding unit, and when the first receiving antenna set is used to receive the transmission signal of the first communication device, the first electromagnetic wave shielding unit may be used to shield at least the transmission signal of the second communication device.
In a specific implementation, the first set of receive antennas may include a first decoder, and when the transmit signal of the first communication device is received by the first set of receive antennas, the transmit signal of the first communication device may be decoded by the first decoder.
In step S502, a transmission signal of a second communication device may be received using the second set of receive antennas.
In a particular implementation, the second set of receive antennas may be proximate to the second communication device. In particular, the second set of receive antennas is a smaller distance from the second communication device than the first communication device.
In a specific implementation, the second set of receive antennas may be smart antennas so that signals may be better received from the second communication device.
As a variation, the second set of receiving antennas is one antenna or a plurality of antennas, and may include a second electromagnetic wave shielding unit, and when the transmission signal of the second communication device is received by the second set of receiving antennas, at least the transmission signal of the first communication device may be shielded by the second electromagnetic wave shielding unit.
The second set of receive antennas may include a second decoder, and the second decoder may be used to decode the transmit signal of the second communication device when the transmit signal of the second communication device is received using the second set of receive antennas.
In step S503, the information combining unit may be utilized to process the signals received by the first receiving antenna set and the second receiving antenna set, so as to obtain the packet information transmitted by the first communication device and the second communication device together.
In a specific implementation, if the first receiving antenna set and the second receiving antenna set respectively include a first decoder and a second decoder, after obtaining respective decoded signals, the information combining unit may combine the decoded signals received from the first receiving antenna set and the second receiving antenna set to obtain the packet information transmitted by the first communication device and the second communication device together.
As a variant, the first set of receiving antennas may not include a first decoder, and the second set of receiving antennas may not include a second decoder. At this time, the information combining unit may decode signals received from the first and second reception antenna sets and combine the decoded signals.
In a specific implementation, the information combining unit may be used to receive the transmission signals of the first receiving antenna set and the second receiving antenna set by wire, and process the transmission signals; alternatively, the information combining unit may be used to wirelessly receive the transmission signals of the first and second receiving antenna sets and process the transmission signals.
In a specific implementation, when the in-band full-duplex communication mode and the conventional half-duplex communication mode coexist, the conventional half-duplex sniffer may be used to collect half-duplex (e.g., uplink Orthogonal Frequency Division Multiple Access (OFDMA)) communication mode information. Then, the information combination unit may be utilized to receive the packet information of the half-duplex sniffer, so as to obtain a more complete sniffer information report. Wherein the half-duplex sniffer refers to a sniffer operating in half-duplex mode.
For more contents of the working principle and the working mode of the data monitoring method of the sniffer, reference may be made to the related descriptions in fig. 1 to fig. 4, and details are not repeated here.
Further, an embodiment of the present invention further discloses a storage medium, where a computer instruction is stored, and when the computer instruction runs, the technical solution of the data monitoring method in the embodiment shown in fig. 5 is executed. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The computer readable storage medium may include ROM, RAM, magnetic or optical disks, and the like.
Further, the embodiment of the invention also discloses a terminal, wherein the terminal can be full-duplex WLAN equipment, and the WLAN equipment can be WLAN AP and WLAN STA. The WLAN device may comprise the sniffer as described above in the embodiments of fig. 1 to 4.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (18)
1. A sniffer, wherein said sniffer is applied in full duplex WLAN communication, said sniffer comprising:
a first set of receive antennas adapted to receive a transmit signal of a first communication device;
a second set of receive antennas adapted to receive a transmit signal of a second communication device;
the information combination unit is suitable for processing the signals received by the first receiving antenna set and the second receiving antenna set so as to obtain the grouping information transmitted by the first communication equipment and the second communication equipment; receiving packet information transmitted by a half-duplex sniffer, wherein the half-duplex sniffer refers to a sniffer working in a half-duplex mode; the first communication device is a WLAN station, and the second communication device is a WLAN access point.
2. The sniffer of claim 1, wherein the first set of receive antennas are at a smaller distance from the first communication device than the second communication device; the second set of receive antennas is less distant from the second communications device than the first communications device.
3. The sniffer of claim 1, wherein the first set of receive antennas and the second set of receive antennas are both smart antennas.
4. The sniffer according to claim 1, characterized in that said first set of receiving antennas comprises a first electromagnetic wave shielding unit adapted to shield at least a transmission signal of said second communication device; the second set of receive antennas comprises a second electromagnetic wave shielding unit adapted to shield at least a transmitted signal of the first communication device.
5. Sniffer according to claim 1, characterized in that the first set of receiving antennas comprises a first decoder adapted to decode a transmission signal of the first communication device to obtain a first decoded signal; the second set of receive antennas includes a second decoder adapted to decode transmit signals of the second set of receive antennas to obtain a second decoded signal.
6. Sniffer according to claim 5, characterized in that the information combining unit is adapted to combine the first and second decoded signals to obtain the packet information transmitted by the first and second communication devices together.
7. Sniffer according to claim 1, characterized in that the information combining unit is adapted to decode signals obtained from the first and second set of receiving antennas and to combine the decoded signals to obtain the packet information transmitted by the first and second communication devices together.
8. The sniffer of claim 1, wherein the information combining unit is wired to the first and second sets of receive antennas; or, the information combining unit wirelessly connects the first receiving antenna set and the second receiving antenna set.
9. A data monitoring method of a sniffer, wherein the sniffer is applied in full-duplex WLAN communication, the sniffer comprises a first set of receiving antennas, a second set of receiving antennas and an information combining unit, and the data monitoring method comprises:
receiving a transmit signal of a first communication device with the first set of receive antennas;
receiving a transmission signal of a second communication device using the second set of receive antennas;
processing signals received by the first receiving antenna set and the second receiving antenna set by using the information combination unit to obtain grouping information transmitted by the first communication equipment and the second communication equipment; receiving packet information of a half-duplex sniffer by using the information combination unit, wherein the half-duplex sniffer refers to a sniffer working in a half-duplex mode;
the first communication device is a WLAN station, and the second communication device is a WLAN access point.
10. The data listening method of claim 9 wherein the first set of receive antennas is less distant from the first communication device than the second communication device; the second set of receive antennas is less distant from the second communications device than the first communications device.
11. The data listening method of claim 9, wherein the first set of receive antennas and the second set of receive antennas are smart antennas.
12. The data listening method according to claim 9, wherein the first receiving antenna set comprises a first electromagnetic wave shielding unit, and when the first receiving antenna set is used for receiving the transmission signal of the first communication device, the first electromagnetic wave shielding unit is used for shielding at least the transmission signal of the second communication device;
the second receiving antenna set includes a second electromagnetic wave shielding unit that shields at least the transmission signal of the first communication device when the transmission signal of the second communication device is received by the second receiving antenna set.
13. The data listening method of claim 9, wherein the first set of receiving antennas comprises a first decoder, and when the first set of receiving antennas is used to receive the transmission signal of the first communication device, the first decoder is used to decode the transmission signal of the first communication device;
the second set of receive antennas includes a second decoder that decodes a transmit signal of the second communication device when the transmit signal of the second communication device is received using the second set of receive antennas.
14. The data listening method of claim 13, wherein the processing signals received by the first receiving antenna set and the second receiving antenna set by the information combining unit comprises:
and combining the decoding signals received from the first receiving antenna set and the second receiving antenna set by using the information combination unit to obtain the grouping information transmitted by the first communication equipment and the second communication equipment together.
15. The data listening method of claim 9, wherein the processing signals received by the first receiving antenna set and the second receiving antenna set by the information combining unit comprises:
decoding signals received from the first and second sets of receive antennas using the information combining unit, and combining the decoded signals.
16. The data listening method of claim 9, wherein the processing signals received by the first receiving antenna set and the second receiving antenna set by the information combining unit comprises:
utilizing the information combination unit to receive the transmitting signals of the first receiving antenna set and the second receiving antenna set in a wired mode, and processing the transmitting signals; alternatively, the first and second electrodes may be,
and wirelessly receiving the transmitting signals of the first receiving antenna set and the second receiving antenna set by using the information combination unit, and processing the transmitting signals.
17. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the data sniffing method of the sniffer according to any of the claims 9 to 16.
18. A terminal, characterized in that it comprises a sniffer according to any of the claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811123211.9A CN109413666B (en) | 2018-09-26 | 2018-09-26 | Data monitoring method of sniffer, storage medium and terminal |
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| CN201811123211.9A CN109413666B (en) | 2018-09-26 | 2018-09-26 | Data monitoring method of sniffer, storage medium and terminal |
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