CN117061032A - Novel WiFi interference testing method and device with CSMA/CA mechanism - Google Patents
Novel WiFi interference testing method and device with CSMA/CA mechanism Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- H—ELECTRICITY
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- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
The invention provides a novel WiFi interference test method and device with a CSMA/CA mechanism, wherein the method is characterized in that a plurality of spaces are arranged, and one of the spaces is set as a tested space; simulating data transmission in the tested space, and simultaneously simulating interference data transmission between the tested space and other spaces; a received signal strength indication value between a client defining other space and a client of the measured space, and a received signal strength indication value between a wireless access point defining other space and a wireless access point of the measured space; the method comprises the steps of triggering data streaming between a client in a tested space and wireless access points in all spaces by configuring interference parameters between the wireless access points in the tested space and the wireless access points in other spaces and between the client in the tested space and the client in other spaces, and simulating real WiFi interference. By the method and the device, the effect of real WiFi interference can be simulated.
Description
Technical Field
The invention relates to the technical field of data calibration, in particular to a novel WiFi interference test method and device with a CSMA/CA mechanism.
Background
Currently, the existing WiFi interference generally adopts radio frequency interference simulation, and the main defect of the simulation technology is that the simulation technology does not simulate the interference of a real WiFi signal.
Since the WiFi signals collide on the air interface, according to the physical layer and MAC layer specifications of WiFi defined by IEEE802.11 specifications, the WiFi adopts a CSMA/CA mode to solve the problem of collision among multiple users and among multiple APs.
If the radio frequency interference simulation is only carried out, the loss of signal quality throughput caused by the CSMA/CA back-off algorithm between the APs cannot be simulated.
Meanwhile, if the simulation is radio frequency interference, the interference simulation AP is in a frequent state because of no CSMA/CA algorithm, so that interference is inconsistent with an interference model caused by back-off in practice, and the effect of simulating real interference cannot be achieved.
If the AP performs some interference optimization algorithms on the interference, because the actual radio frequency interference simulation does not have the actual WiFi protocol stack simulation, the trigger of the CSMA/CA condition is not generated, and the defect of interference simulation can be caused.
Disclosure of Invention
The invention provides a novel WiFi interference test method and device with a CSMA/CA mechanism, aiming at simulating the effect of real WiFi interference.
Therefore, a first object of the present invention is to provide a novel WiFi interference test method with CSMA/CA mechanism, including:
setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access point are arranged in each space;
simulating data transmission in the tested space; defining a received signal strength indication value and a packet sending rate between a wireless access point and a client in a measured space;
simulating interference data transmission between the measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; defining a received signal strength indication value between a wireless access point in other spaces and a wireless access point in a measured space, and taking the received signal strength indication value as a downlink interference received signal strength indication value of the wireless access point in the measured space;
the method comprises the steps of triggering data streaming between a client in a tested space and wireless access points in all spaces by configuring interference parameters between the wireless access points in the tested space and the wireless access points in other spaces and between the client in the tested space and the client in other spaces, and simulating real WiFi interference.
The interference parameters at least comprise analog interference types, frequency point information, bandwidth, packet sending rate, packet sending size and radio frequency attenuation parameters.
The client is a computer with a wireless network card, or a PDA and other user equipment capable of networking.
The method comprises the steps of simulating interference data transmission between a measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; the received signal strength indication value between the wireless access point defining other spaces and the wireless access point of the measured space is used as the downlink interference received signal strength indication value of the wireless access point in the measured space, and the method comprises the following steps:
setting a plurality of spaces including a measured space and other spaces;
simulating interference of wireless access points in other spaces to wireless access points in a measured space, and defining a received signal strength indication value between the interfering wireless access points and the measured wireless access points as a downlink interference received signal strength indication value of the wireless access points in the measured space;
and simulating interference to the clients in the tested space in other spaces, and defining a received signal strength indication value between the interfering clients and the tested clients as an uplink interference received signal strength indication value of the clients in the tested space.
The wireless access point is arranged in the shielding room in the tested space; a turntable is arranged in the shielding room, and a wireless access point is arranged in the center of the turntable; and a plurality of antenna groups are also arranged in the shielding chamber.
A second object of the present invention is to provide a novel WiFi interference test device with CSMA/CA mechanism, including:
the space setting module is used for setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access point are arranged in each space;
the tested space simulation module is used for simulating the internal data transmission of the tested space; defining a received signal strength indication value and a packet sending rate between a wireless access point and a client in a measured space;
the interference simulation module is used for simulating interference data transmission between the measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; defining a received signal strength indication value between a wireless access point in other spaces and a wireless access point in a measured space, and taking the received signal strength indication value as a downlink interference received signal strength indication value of the wireless access point in the measured space;
the interference configuration module is used for triggering data streaming between the client side of the tested space and the wireless access points of all the spaces by configuring interference parameters between the wireless access points of the tested space and the wireless access points of other spaces and between the client side of the tested space and the client side of the other spaces, and simulating real WiFi interference.
The interference parameters at least comprise analog interference types, frequency point information, bandwidth, packet sending rate, packet sending size and radio frequency attenuation parameters.
The client is a computer with a wireless network card, or a PDA and other user equipment capable of networking.
Wherein, the interference simulation module includes:
the downlink interference simulation unit is used for simulating interference of the wireless access point in other spaces to the wireless access point in the measured space, and defining a received signal strength indication value between the interfering wireless access point and the measured wireless access point as a downlink interference received signal strength indication value of the wireless access point in the measured space;
and the uplink interference simulation unit is used for simulating interference to the clients in the tested space in other spaces, and defining a received signal strength indication value between the interfering clients and the tested clients as an uplink interference received signal strength indication value of the clients in the tested space.
The wireless access point is arranged in the shielding room in the tested space; a turntable is arranged in the shielding room, and a wireless access point is arranged in the center of the turntable; and a plurality of antenna groups are also arranged in the shielding chamber.
Different from the prior art, the novel WiFi interference testing method with the CSMA/CA mechanism provided by the invention has the advantages that one space is set as a tested space by setting a plurality of spaces; simulating data transmission in the tested space, and simultaneously simulating interference data transmission between the tested space and other spaces; a received signal strength indication value between a client defining other space and a client of the measured space, and a received signal strength indication value between a wireless access point defining other space and a wireless access point of the measured space; the method comprises the steps of triggering data streaming between a client in a tested space and wireless access points in all spaces by configuring interference parameters between the wireless access points in the tested space and the wireless access points in other spaces and between the client in the tested space and the client in other spaces, and simulating real WiFi interference. By the method and the device, the effect of real WiFi interference can be simulated.
Drawings
The invention and/or additional aspects and advantages will be apparent from and will be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.
Fig. 1 is a flow chart of a novel WiFi interference test method with a CSMA/CA mechanism provided by the invention.
Fig. 2 is a schematic diagram of spatial setup in a novel WiFi interference test method with CSMA/CA mechanism provided by the invention.
Fig. 3 is a schematic diagram of a test flow in a novel WiFi interference test method with a CSMA/CA mechanism according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1, a novel WiFi interference test method with CSMA/CA mechanism provided by the embodiment of the invention includes:
s110: setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access point are arranged in each space.
As shown in fig. 2, three spaces, designated as room 1, room 2 and room 3 in fig. 2, respectively, are provided in the embodiment of the present invention; wherein, room 1 is set as a measured space, and a local AP1 as a wireless access point in the measured space and a client in the measured space, namely a local STA1, are provided in room 1 as the measured space. Room 2 and room 3 are other spaces mentioned in the present invention. Wherein, the WiFi communication in the room 2 and the room 1 is set to be transmitted in a neighboring frequency mode, and the WiFi communication in the room 3 and the room 1 is set to be transmitted in a same frequency mode.
Specifically, the link relationship of the three rooms is shown in fig. 2. WiFi channel 1 is used when the AP and clients of room 1 are transmitting data.
When a client in room 2 sends a packet to an AP in room 2, the signal transmitted by the client leaks into room 1, which is an uplink interference. When the AP in room 2 wraps the client, the AP's signal will also leak into room 1, which will have a downlink interference, which is a neighbor interference for room 1 because of the currently used channel 2.
When the client in room 3 wraps the AP, the signal transmitted by the client leaks into room 1, which is an uplink interference. When the AP in room 3 wraps the client, the AP's signal will also leak into room 1, which will have a downlink interference, which is a common frequency interference for room 1 because of the currently used channel 1.
S120: simulating data transmission in the tested space; a received signal strength indication value and a packet rate between a wireless access point and a client in a measured space are defined.
In the invention, in the tested space, a wireless access point is arranged in a shielding room; a turntable is arranged in the shielding room, and a wireless access point is arranged in the center of the turntable; and a plurality of antenna groups are also arranged in the shielding chamber.
S130: simulating interference data transmission between the measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; and defining a received signal strength indication value between the wireless access points in other spaces and the wireless access points in the measured space as a downlink interference received signal strength indication value of the wireless access points in the measured space.
Simulating interference of wireless access points in other spaces to wireless access points in a measured space, and defining a received signal strength indication value between the interfering wireless access points and the measured wireless access points as a downlink interference received signal strength indication value of the wireless access points in the measured space;
and simulating interference to the clients in the tested space in other spaces, and defining a received signal strength indication value between the interfering clients and the tested clients as an uplink interference received signal strength indication value of the clients in the tested space.
Specifically, the data in room 1 in fig. 2, i.e., link 1 in the room, is first simulated, and the RSSI value between AP1 and STA1, and the packet rate between AP1 and STA1, are defined.
The data in room 2 is modeled, first link 2, defining the RSSI value between AP2 and STA2 of room 2, and the packet rate between AP2 and STA 2.
Then simulating link 3 in room 2, by defining the RSSI value between interfering STA2 and STA1 in room 1, the interference RSSI of STA1 upstream in room 1 can be defined.
Then simulate link 4 in room 2, by defining the RSSI value between interfering AP2 and AP1 of room 1, the interference RSSI of AP1 downstream of room 1 can be defined.
The data in room 3 is modeled, first link 6, defining the RSSI value between AP3 and STA3 of room 3, and the packet rate between AP3 and STA 3.
Then simulating link 5 in room 3, by defining the RSSI value between interfering STA3 and STA1 of room 1, the interference RSSI upstream of STA1 of room 1 can be defined.
Then simulating the orange link 7 in room 3, by defining the RSSI value between the interfering AP3 and the AP1 of room 1, the interference RSSI downstream of the AP1 of room 1 can be defined.
S140: the method comprises the steps of triggering data streaming between a client in a tested space and wireless access points in all spaces by configuring interference parameters between the wireless access points in the tested space and the wireless access points in other spaces and between the client in the tested space and the client in other spaces, and simulating real WiFi interference.
The test flow of the present invention is set up as shown in fig. 3. The AP simulation in fig. 3 may simulate AP2 and AP3, i.e. the interference AP of room 2 and room 3 as described earlier.
STA simulation may simulate STA2 and STA3, i.e., simulate interfering STAs of room 2 and room 3.
Meanwhile, the STA simulation can simulate the STA1 of the room 1, and the AP1 of the room 1 is placed in the center of a turntable of the shielding room.
Channel simulation may simulate the link 1 parameters in room 1.
By defining the attenuation values between the AP simulation and the STA simulation, links 2 and 6 in rooms 2 and 3 can be defined.
By defining the attenuation values between the AP simulation and the mask room, links 4 and 7 can be defined.
By defining the attenuation values between STA simulation and the mask room, links 3 and 5 can be defined.
The interference parameters at least comprise analog interference types, frequency point information, bandwidth, packet sending rate, packet sending size and radio frequency attenuation parameters.
The client is a computer with a wireless network card, or a PDA and other user equipment capable of networking.
During testing, AP simulation is configured to simulate co-frequency and adjacent frequency interference, so that frequency points, bandwidth, packet sending rate, packet sending size and radio frequency attenuation can be defined;
configuring STA simulation, connecting to AP simulation;
configuring STA simulation, connecting to an AP in a shielded room;
configuring radio frequency attenuation of the STA;
triggering streaming between the STA and the AP in the shielding room;
triggering streaming between the STA and the AP simulation, and simulating real interference.
A second object of the present invention is to provide a novel WiFi interference test device with CSMA/CA mechanism, including:
the space setting module is used for setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access point are arranged in each space;
the tested space simulation module is used for simulating the internal data transmission of the tested space; defining a received signal strength indication value and a packet sending rate between a wireless access point and a client in a measured space;
the interference simulation module is used for simulating interference data transmission between the measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; defining a received signal strength indication value between a wireless access point in other spaces and a wireless access point in a measured space, and taking the received signal strength indication value as a downlink interference received signal strength indication value of the wireless access point in the measured space;
the interference configuration module is used for triggering data streaming between the client side of the tested space and the wireless access points of all the spaces by configuring interference parameters between the wireless access points of the tested space and the wireless access points of other spaces and between the client side of the tested space and the client side of the other spaces, and simulating real WiFi interference.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In such embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the described embodiments may be implemented by a program that instructs associated hardware to perform, and that the program may be stored on a computer readable storage medium that when executed includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The mentioned storage medium may be a read-only memory, a magnetic or optical disk or the like. Although embodiments of the present invention have been shown and described above, it will be understood that the embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A novel WiFi interference test method with a CSMA/CA mechanism is characterized by comprising the following steps:
setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access points are arranged in each space;
simulating data transmission in the tested space; defining a received signal strength indication value and a packet sending rate between a wireless access point and a client in a measured space;
simulating interference data transmission between the measured space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; defining a received signal strength indication value between a wireless access point in other spaces and a wireless access point in a measured space, and taking the received signal strength indication value as a downlink interference received signal strength indication value of the wireless access point in the measured space;
the method comprises the steps of triggering data streaming between a client in a tested space and wireless access points in all spaces by configuring interference parameters between the wireless access points in the tested space and the wireless access points in other spaces and between the client in the tested space and the client in other spaces, and simulating real WiFi interference.
2. The method of claim 1, wherein the interference parameters at least include analog interference type, frequency point information, bandwidth, packet rate, packet size, and radio frequency attenuation parameters.
3. The novel WiFi interference testing method with CSMA/CA mechanism according to claim 1, wherein the client is a computer with a wireless network card, or a PDA and other user equipment capable of networking.
4. The novel WiFi interference testing method with CSMA/CA mechanism according to claim 1, wherein the simulating the interference data transmission between the tested space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; the received signal strength indication value between the wireless access point defining other spaces and the wireless access point of the measured space is used as the downlink interference received signal strength indication value of the wireless access point in the measured space, and the method comprises the following steps:
setting a plurality of spaces including a measured space and other spaces;
simulating interference of wireless access points in other spaces to wireless access points in a measured space, and defining a received signal strength indication value between the interfering wireless access points and the measured wireless access points as a downlink interference received signal strength indication value of the wireless access points in the measured space;
and simulating interference to the clients in the tested space in other spaces, and defining a received signal strength indication value between the interfering clients and the tested clients as an uplink interference received signal strength indication value of the clients in the tested space.
5. The novel WiFi interference testing method with CSMA/CA mechanism according to claim 1, wherein the wireless access point is disposed in a shielding room in the tested space; a turntable is arranged in the shielding chamber, and a wireless access point is arranged in the center of the turntable; and a plurality of groups of antenna groups are also arranged in the shielding chamber.
6. Novel possess wiFi interference test device of CSMA/CA mechanism, its characterized in that includes:
the space setting module is used for setting a plurality of spaces, and setting one of the spaces as a measured space; at least one wireless access point and one client for establishing WiFi connection with the wireless access points are arranged in each space;
the tested space simulation module is used for simulating the internal data transmission of the tested space; defining a received signal strength indication value and a packet sending rate between a wireless access point and a client in a measured space;
the interference simulation module is used for simulating interference data transmission between the tested space and other spaces; defining a received signal strength indication value between a client of other spaces and a client of a measured space, and taking the received signal strength indication value as an uplink interference received signal strength indication value of the client of the measured space; defining a received signal strength indication value between a wireless access point in other spaces and a wireless access point in a measured space, and taking the received signal strength indication value as a downlink interference received signal strength indication value of the wireless access point in the measured space;
the interference configuration module is used for triggering data streaming between the client side of the tested space and the wireless access points of all the spaces by configuring interference parameters between the wireless access points of the tested space and the wireless access points of other spaces and between the client side of the tested space and the client side of the other spaces, and simulating real WiFi interference.
7. The novel WiFi interference testing device with CSMA/CA mechanism according to claim 6, wherein the interference parameters at least include analog interference type, frequency point information, bandwidth, packet rate, packet size, and radio frequency attenuation parameters.
8. The novel WiFi interference test device with the CSMA/CA mechanism according to claim 6, wherein the client is a computer with a wireless network card or a PDA and other user equipment capable of networking.
9. The novel WiFi interference testing device with CSMA/CA mechanism according to claim 6, wherein the interference simulation module comprises:
the downlink interference simulation unit is used for simulating interference of the wireless access point in other spaces to the wireless access point in the measured space, and defining a received signal strength indication value between the interfering wireless access point and the measured wireless access point as a downlink interference received signal strength indication value of the wireless access point in the measured space;
and the uplink interference simulation unit is used for simulating interference to the clients in the tested space in other spaces, and defining a received signal strength indication value between the interfering clients and the tested clients as an uplink interference received signal strength indication value of the clients in the tested space.
10. The novel WiFi interference testing device with CSMA/CA mechanism according to claim 6, wherein the wireless access point is disposed in the shielding room in the tested space; a turntable is arranged in the shielding chamber, and a wireless access point is arranged in the center of the turntable; and a plurality of groups of antenna groups are also arranged in the shielding chamber.
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