CN117135738A - WIFI communication method, device and network equipment - Google Patents

Abstract

This application relates to the field of WIFI and provides a WIFI communication method, device and network equipment. In this method, the network device obtains the signal strengths of M terminal devices connected to the network device through the 2.4G WIFI network in the first period, and at least part of the signal strengths of the M terminal devices in the first period If it is greater than the first intensity threshold, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the second transmission power. In this way, while trying to avoid having a major impact on the 2.4G WIFI network, the signal strength of the 5G WIFI network in as many coverage areas as possible is greater than the signal strength of the 2.4G WIFI network. Then, the signal strength of the 5G WIFI network In a coverage area with a signal strength greater than that of the 2.4G WIFI network, the terminal device will scan the 5G WIFI network first and then access the 5G WIFI network to improve user experience.

Description

A WIFI communication method, device and network equipment

Technical field

The present application relates to the WIFI field, and more specifically, to a WIFI communication method, device and network equipment in the WIFI field.

Background technique

At present, network equipment generally supports 5G wireless-fidelity (WIFI) networks and 2.4G WIFI networks. Compared with 2.4G WiFi networks, 5G WIFI networks are more susceptible to attenuation and weakening. Therefore, in many cases, 2.4G WIFI networks are used at the same location. The signal of the network is strong. When a terminal device connects to a WIFI network, it will generally give priority to the 2.4G WIFI network with good signal strength and no longer access the 5G WIFI network, resulting in poor user experience.

Contents of the invention

Embodiments of the present application provide a WIFI communication method, device and network equipment, which can enable terminal devices to access the 5G WIFI network preferentially as much as possible to improve user experience.

In the first aspect, a WIFI communication method is provided, which is applied to network equipment. The network equipment supports 2.4G WIFI network and 5G WIFI network. The method includes:

Obtain first signal information of M terminal devices connected to the network device through the 2.4G WIFI network within the first period, where the first signal information is used to indicate that the M terminal devices are connected to the first network device through the 2.4G WIFI network. The signal strength within the period, M is an integer greater than or equal to 1;

In the case where at least part of the signal strengths of the M terminal devices in the first period are greater than the first strength threshold, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the third transmission power. 2. Transmit power.

In the WIFI communication method provided by the embodiment of the present application, the network device obtains the signal strengths of M terminal devices connected to the network device through the 2.4G WIFI network in the first period. Among the signal strengths of the M terminal devices in the first period When at least some of the signal strengths are greater than the first strength threshold, it means that the overall signal strength of the current 2.4G WIFI network is better. Therefore, the transmission power of the 2.4G WIFI network is reduced and the transmission power of the 2.4G WIFI network is changed from the first strength threshold to the first strength threshold. The transmit power is reduced to the second transmit power. In this way, while trying to avoid having a major impact on the 2.4G WIFI network, the signal strength of the 5G WIFI network in as many coverage areas as possible is greater than the signal strength of the 2.4G WIFI network. Then, the signal strength of the 5G WIFI network is greater than Within the coverage area of the 2.4G WIFI network's signal strength, the terminal device will scan the 5G WIFI network first and then access the 5G WIFI network to improve user experience.

In any possible implementation manner of the first aspect, the at least part of the signal strength is all signal strengths of the signal strengths of the M terminal devices within the first period.

The WIFI communication method provided by the embodiment of the present application reduces the transmission power of the 2.4G WIFI network to the minimum extent by determining that all signal strengths of the M terminal devices in the first period are greater than the first strength threshold. It greatly reduces the impact on 2.4G services due to reducing the transmission power of the 2.4G WIFI network, and improves the overall stability of communication.

In any possible implementation of the first aspect, reducing the transmission power of the 2.4G WIFI network from the first transmission power to the second transmission power includes:

Determine the signal strength with the worst signal strength among the at least partial signal strengths as the target signal strength;

Determine the adjustment amplitude of the transmission power of the 2.4G WIFI network based on the strength difference between the target signal strength and a second strength threshold, where the second strength threshold is smaller than the first strength threshold;

Within the adjustment range, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the second transmission power.

In the WIFI communication method provided by the embodiment of the present application, since the target signal strength is the worst signal strength among at least part of the signal strengths of the M terminal devices in the first period, and the second strength threshold is used to characterize The lowest value of signal strength that enables normal communication is determined by the strength difference between the target signal strength and the second strength threshold. The adjustment amplitude of the transmission power of the 2.4G WIFI network can be expressed as the maximum value that the transmission power can be adjusted. Therefore, by reducing the transmit power of the 2.4G WIFI network within the adjustment range, the power change value of the transmit power will not be too large. The signal strength of the adjusted 2.4G WIFI network will not be poor but within the range of normal communication. The impact on the 2.4G WIFI network will not be significant. At the same time, the signal strength of the 5G WIFI network in as many coverage areas as possible can be greater than the signal strength of the 2.4G WIFI network, so that terminal devices can access the 5G WIFI network first to improve user experience. In short, reducing the transmission power of the 2.4G WIFI network within the adjustment range can better balance the normal communication of the 2.4G WIFI network and the priority access of the 5G WIFI network.

In any possible implementation manner of the first aspect, the power change value between the first transmission power and the second transmission power is smaller than the adjustment amplitude.

In the WIFI communication method provided by the embodiment of the present application, when the transmission power of the 2.4G WIFI network is reduced within the adjustment range, the power change value between the first transmission power and the second transmission power is less than the adjustment range, that is, only the adjustment range is reduced Part of the adjustment range is reserved for part of the margin. In this way, it can better cope with the dynamic changes in the network due to various abnormalities, and better ensure that the signal strength of the adjusted 2.4G WIFI network will not be very poor, thereby further reducing Impact on 2.4G WIFI network.

In any possible implementation of the first aspect, after reducing the transmission power of the 2.4G WIFI network from the first transmission power to the second transmission power, the method further includes:

Obtain second signal information of N terminal devices connected to the network device through the 2.4G WIFI network within the second period, where the second signal information is used to indicate that the N terminal devices are connected to the network device through the 2.4G WIFI network in the second period. Signal strength during the period;

Determine whether to continue to reduce the transmission power of the 2.4G WIFI network according to the signal strengths of the N terminal devices in the second period and the first strength threshold;

Wherein, the duration of the second period is shorter than the duration of the first period, and N is an integer greater than or equal to 1.

In the WIFI communication method provided by the embodiment of the present application, the network device can obtain the signal strength of the terminal device connected to the network device at regular intervals to determine whether to reduce the signal strength of the 2.4G WIFI network based on the signal strength. According to the first period After reducing the transmit power of the 2.4G WIFI network from the first transmit power to the second transmit power, the signal strengths of the M terminal devices are determined based on the obtained signal strengths of the N terminal devices in the second period after the first period. Whether to continue to reduce the signal strength of the 2.4G WIFI network, by setting the duration of the second period to be shorter than the duration of the first period, the signal strength of the 2.4G WIFI network after reducing the transmission power of the 2.4G WIFI network can be quickly detected. In order to facilitate network equipment to make timely adjustments.

In any possible implementation of the first aspect, the obtaining the first signal information of M terminal devices connected to the network device through the 2.4G WIFI network within the first period includes;

During the first period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the first duration to obtain the first signal information; and,

The obtaining of second signal information of N terminal devices connected to the network device through the 2.4G WIFI network within the second period includes:

During the second period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the second duration to obtain the second signal information;

Wherein, the second duration is shorter than the first duration.

In the WIFI communication method provided by the embodiment of the present application, in order to avoid obtaining too few signal strengths during the shorter second period, the second period is set shorter, that is, the second period is shorter than the first period. , In this way, a certain amount of signal strength can be obtained in the shorter second period, which is conducive to quickly detecting the reduced signal strength of the 2.4GWIFI network, so that the network equipment can make timely adjustments.

In any possible implementation of the first aspect, determining whether to continue to reduce the 2.4G WIFI is based on the signal strengths of the N terminal devices in the second period and the first strength threshold. The transmit power of the network, including:

In the case where at least part of the signal strengths of the N terminal devices in the second period are less than the first strength threshold, the transmit power of the 2.4G WIFI network is changed from the second transmitter to the second transmitter. The power is increased to a third transmit power that is less than the first transmit power.

In the WIFI communication method provided by the embodiment of the present application, the network device can obtain the signal strength of the terminal device connected to the network device at regular intervals to determine whether to reduce the signal strength of the 2.4G WIFI network based on the signal strength. According to the first period The signal strengths of the M terminal devices. After reducing the transmit power of the 2.4G WIFI network from the first transmit power to the second transmit power, obtain the signal strengths of the N terminal devices in the second period after the first period. In N If at least part of the signal strengths of the terminal devices is less than the first strength threshold, it means that the signal strength of the 2.4G WIFI network in the second period is poor. By increasing the transmission power of the 2.4G WIFI network, that is, changing the 2.4G WIFI network to The transmit power of the WIFI network is increased from the second transmit power to the third transmit power, and the third transmit power is smaller than the first transmit power. In this way, the network device can dynamically adjust the transmit power of the 2.4G WIFI network in real time according to the signal strength to maximize the It is possible to maintain the stability of the 2.4G WIFI network for a long time. At the same time, it can also reduce the transmission power of the 2.4G WIFI network to a certain extent, allowing terminal devices to access the 5G WIFI network as much as possible to improve user experience.

In any possible implementation manner of the first aspect, the M terminal devices include devices that are stably connected to the network device and devices that are not stably connected to the network device.

In any possible implementation of the first aspect, after reducing the transmission power of the 2.4G WIFI network from the first transmission power to the second transmission power, the method further includes:

Receive the 5G detection request of the 5G WIFI network and the 2.4G detection request of the 2.4GWIFI network sent by the first terminal device;

Send a 5G detection response to the 5G detection request to the first terminal device to access the first terminal device to the 5G WIFI network.

In the second aspect, a WIFI communication method is provided, which is applied to network equipment. The network equipment supports 5G WIFI network and 2.4G WIFI network. The method includes:

When the first 2.4G detection request of the 2.4G WIFI network sent by the terminal device is received and the first 5G detection request of the 5G WIFI network sent by the terminal device is not received, start the timer;

If the first 5G detection request is received within the duration of the timer, a first 5G detection response for the first 5G detection request is sent to the terminal device to access the terminal device. The 5G WIFI network.

The WIFI communication method provided by the embodiment of the present application is compared with the prior art solution in which the network device responds to the first 2.4G detection request after receiving the first 2.4G detection request, thereby connecting the terminal device to the 2.4G WIFI network. , the embodiment of the present application configures a timer for waiting for the first 5G detection request in the network device. After receiving the first 2.4G detection request sent by the terminal device, the network device temporarily does not respond to the first 2.4G detection request. Instead, start the timer and wait for the first 5G detection request within the timer's duration. If the first 5G detection request is received within the timer's duration, it will respond to the detection request of the 5GWIFI network. In this way, you can access the 5G WIFI first. network to improve user experience.

In any possible implementation of the second aspect, the method further includes:

If the first 5G detection request is not received within the duration of the timer, send a first 2.4G detection response to the first 2.4G detection request to the terminal device, so that the terminal device Connect to the 2.4GWIFI network.

In the WIFI communication method provided by the embodiment of this application, after receiving the first 2.4G detection request sent by the terminal device, the network device does not respond to the first 2.4G detection request temporarily, but starts the timer. Within the timer duration, the network device does not respond to the first 2.4G detection request. Wait for the first 5G detection request. If the first 5G detection request is not received within the timer, the first 2.4G detection response is sent to the terminal device. In this way, it is not conducive to or unable to access the 5G WIFI network in the short term. In this case, access the 2.4G WIFI network to give priority to ensure that the terminal device is connected to the WIFI network and does not affect the user's Internet access needs.

In any possible implementation of the second aspect, the terminal device does not support the 5G WIFI network; or,

The terminal device supports the 5G WIFI network, and before the terminal device sends the first 2.4G detection request to the network device, the terminal device and the network device communicate through the 2.4G WIFI network connect.

In any possible implementation of the second aspect, when the first 5G detection request sent by the terminal device is received and the first 2.4G detection request sent by the terminal device is not received Next, the timer is not started, and the first 5G detection response is sent to the terminal device to access the terminal device to the 5G WIFI network.

In any possible implementation manner of the second aspect, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a unicast manner.

In any possible implementation of the second aspect, before starting the timer, the method further includes:

Send the 2.4G beacon frame of the 2.4G WIFI network and the 5G beacon frame of the 5G WIFI network to the terminal device.

In any possible implementation manner of the second aspect, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a broadcast manner; and, in the step of sending the first 2.4G detection request to the terminal device, After the device sends the first 5G detection response to the first 5G detection request, the method further includes:

Receive the second 5G detection request sent by the terminal device in a unicast manner;

Send a second 5G detection response to the second 5G detection request to the terminal device to access the terminal device to the 5G WIFI network.

In any possible implementation manner of the second aspect, the duration of the timer is less than or equal to 2 seconds.

In a third aspect, a WIFI communication method is provided, applied to terminal equipment, and the terminal equipment supports 5G WIFI network and 2.4G WIFI network. The method includes:

Send the first 2.4G detection request of the 2.4G WIFI network and the first 5G detection request of the 5G WIFI network to the network device;

Receive a first 5G detection response sent by the network device in response to the first 5G detection request;

Access the 5G WIFI network.

In any possible implementation manner of the third aspect, before sending the first 2.4G detection request of the 2.4G WIFI network and the first 5G detection request of the 5G WIFI network to the network device, the Methods also include:

Receive the 2.4G beacon frame of the 2.4G WIFI network and the 5G beacon frame of the 5G WIFI network sent by the network device.

A fourth aspect provides a network device configured to execute the method provided in the first aspect or the second aspect. Specifically, the network device may include a module for performing any possible implementation of the first aspect or the second aspect.

In a fifth aspect, a terminal device is provided, and the terminal device is configured to execute the method provided in the third aspect. Specifically, the terminal device may include a module for performing any of the possible implementations of the third aspect.

A sixth aspect provides a network device including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory to implement the method in any of the possible implementations of the first aspect or the second aspect. Optionally, the network device also includes a memory. Optionally, the device further includes a communication interface, and the processor is coupled to the communication interface.

In a seventh aspect, a terminal device is provided, including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory to implement the method in any possible implementation manner of the third aspect. Optionally, the terminal device further includes a memory. Optionally, the device further includes a communication interface, and the processor is coupled to the communication interface.

An eighth aspect provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a device, it causes the device to implement any one of the above-mentioned first, second or third aspects. Methods in possible implementations.

A ninth aspect provides a computer program product containing instructions that, when executed by a computer, cause a device to implement the method in any of the possible implementations of the first aspect, the second aspect, or the third aspect.

In a tenth aspect, a chip is provided, including: an input interface, an output interface, a processor, and a memory. The input interface, the output interface, the processor, and the memory are connected through an internal connection path. The processor uses In order to execute the code in the memory, when the code is executed, the processor is configured to execute the method in any one of the possible implementations of the first aspect, the second aspect or the third aspect.

Description of the drawings

Figure 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application.

Figure 2 is a schematic flow chart of a method for a terminal device to access a WIFI network provided by an embodiment of the present application.

Figure 3a is an exemplary flow chart of a method for a terminal device to access a WIFI network when both the network device and the terminal device support the 2.4G WIFI network and the 5G WIFI network provided by the embodiment of the present application.

Figure 3b is another exemplary flow chart of a method for a terminal device to access a WIFI network when both the network device and the terminal device support the 2.4G WIFI network and the 5G WIFI network provided by the embodiment of the present application.

Figure 4 is a schematic flow chart of a WIFI communication method provided by an embodiment of the present application.

Figure 5 is a schematic diagram of state changes in the coverage area of the network device before and after reducing the transmission power of the 2.G WIFI network provided by the embodiment of the present application.

Figure 6a is a schematic flow chart of the process of a terminal device accessing the WIFI network after reducing the transmission power of the 2.4G WIFI network provided by the embodiment of the present application.

Figure 6b is another schematic flow chart of the process of a terminal device accessing the WIFI network after reducing the transmission power of the 2.4G WIFI network provided by the embodiment of the present application.

Figure 7 is a schematic flow chart of the WIFI communication method provided by the embodiment of the present application.

Figure 8a is a schematic interaction diagram of the WIFI communication method provided by the embodiment of the present application.

Figure 8b is another schematic interaction diagram of the WIFI communication method provided by the embodiment of the present application.

Figure 9 is an exemplary block diagram of a WIFI communication device provided by an embodiment of the present application.

Figure 10 is a schematic structural diagram of a WIFI communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in this application will be described below with reference to the accompanying drawings.

Figure 1 is a schematic architecture diagram of a wireless communication system provided by an embodiment of the present application.

It should be understood that the wireless communication system shown in Figure 1 is only a schematic illustration and should not limit the embodiments of the present application. For example, the wireless communication system may also include more or less network devices and terminal devices.

Referring to Figure 1, a wireless communication system includes a network device 110 and at least one terminal device. For example, the at least one terminal device includes a terminal device 121 (eg, a mobile phone), a terminal device 122 (eg, a laptop computer), and a terminal device 123 (eg, Tablet computer), the network device 110 is connected to the at least one terminal device through a WIFI network.

Network equipment and terminal equipment can support at least one frequency band of WIFI network.

For network equipment, the network equipment can support a WIFI network of one frequency band, and the WIFI network can be a 2.4G WIFI network; the network equipment can also support WIFI networks of multiple frequency bands, for example, the WIFI networks of multiple frequency bands include at least a 2.4G WIFI network. and 5G WIFI networks, and can also include WIFI networks in other frequency bands.

For terminal equipment, the terminal equipment can support a WIFI network of one frequency band, and the WIFI network can be a 2.4G WIFI network; the terminal equipment can also support WIFI networks of multiple frequency bands, for example, the WIFI networks of multiple frequency bands include at least a 2.4G WIFI network. and 5G WIFI networks, and can also include WIFI networks in other frequency bands.

It should be understood that the 2.4G WIFI network means that the working frequency band of the WIFI network is 2.4Ghz, and the bandwidth range is approximately 2.4Ghz ~ 2.48Ghz. 5G WIFI network means that the working frequency band of the WIFI network is 5Ghz, and the bandwidth range is approximately 4.9Ghz~5.9Ghz.

When the network device is connected to multiple terminal devices, the network device and the multiple terminal devices can be connected through the WIFI network of the same frequency band, or they can be connected through WIFI networks of different frequency bands. Taking Figure 1 as an example, three terminal devices are all connected to the network device 110, and are all connected through the 2.4GWIFI network. For another example, the network device 110 is connected to the terminal device 121 and the terminal device 122 through a 5G WIFI network, and the network device 110 is connected to the terminal device 123 through a 2.4G WIFI network.

The network device in this embodiment of the present application may be called a wireless access point (AP), and is used to provide a WIFI network for terminal devices.

Wireless AP, also called wireless access point, commonly known as "hotspot", is the most commonly used device when building a small wireless LAN. The AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect the clients of each wireless network together, and then connect the wireless network to the Ethernet. Current wireless APs can be divided into two categories: simple APs and extended APs.

A simple AP is only responsible for the access of wireless terminals. It is equivalent to a wireless switch and only provides a wireless signal transmission function. The typical distance of simple AP covers tens of meters to hundreds of meters, and some can also be used for long-distance transmission. Currently, the farthest one can reach about 30km. The main technology is IEEE802.11 series. Simple APs are mostly used in large companies. Large companies need a large number of wireless access nodes to achieve large-area network coverage. At the same time, all access terminals belong to the same network, which also facilitates company network administrators to simply implement network control and management. .

The extended AP is what we often call a wireless router. It can be understood as a wireless AP with routing function. It is mainly used for user Internet access and wireless coverage. It not only has all the functions of a simple wireless AP, but also includes the network address translation function. Supports network connection sharing for LAN users. Through the routing function, Internet connection sharing in the home wireless network can be realized, and wireless shared access of asymmetric digital subscriber line (ADSL) and community broadband can also be realized. In addition, wireless and wired connected terminals can be assigned to a subnet through a wireless router, so that various devices in the subnet can easily exchange data. Wireless routers are generally used in home and home office (small office, home office, SOHO) environment networks. In this case, the coverage area and users are generally small, and only one wireless AP is enough.

The terminal device in this embodiment of the present application may be called a station (STA). For example, the terminal device may be various devices that support WIFI networks, such as mobile phones, smart watches, smart bracelets, tablets, desktop computers, laptops, wireless handles, wireless speakers, wireless desk lamps, etc.

Figure 2 is a schematic flow chart of a method 200 for a terminal device to access a WIFI network provided by an embodiment of the present application.

Step S210 is a scanning process. Before the terminal device connects to the network device, it first needs to discover the network device. To simply understand, the scanning process is the process of searching for WIFI networks around the terminal device.

The scanning process can be carried out in two scanning modes: active scanning and passive scanning. Active scanning includes steps S212 and S213, and passive scanning includes steps S211, S212 and S213. Below, the processes of passive scanning and active scanning are described in detail respectively.

1. Passive scanning

In step S211, network device A broadcasts a beacon frame.

Correspondingly, terminal device A monitors the beacon frame and temporarily stores the received beacon frame so as to subsequently retrieve relevant data of the basic service set (BSS) that transmits the beacon frame. It should be understood that network device A will broadcast beacon frames on the channels supported by network device A, and terminal device A will continuously switch between channels listed in the channel list to listen for beacon frames.

BSS is the coverage area of an AP and is the basic service unit of the wireless network. It usually consists of one AP and at least one STA. As shown in Figure 1, it can be composed of one network device (AP) and three terminal devices (STA). BBS.

Among them, the beacon frame includes the service set identity (SSID) of the WIFI network supported by network device A, the basic service set identifier (BSSID) of the WIFI network supported by network device A, and other information used to join the BSS. .

SSID can be understood as the identification or name of a wireless LAN. Usually, the SSID is the WIFI name displayed on the interface searched by the terminal device, for example, airport, China_CMCC, office1, etc. BSSID can be understood as the media access control (MAC) address of the WIFI network, also known as the physical address, for example: 0025.9e45.240.

Exemplarily, other information used to join the BBS may include, for example, timestamp bits (timestamp), supported rates of wireless LAN (supported rates), frequency hopping parameter set (PH parameter set), direct sequence parameter set (DS parameter set) , contention-free parameter set (CF parameter set), power constraint (powerconstraint), channel switch announcement (channel switch announcement) and other information. It should be understood that the information listed here for joining the BBS is only a schematic description, and may also include other more information. For specific content, please refer to the relevant technology and will not be described again.

In the implementation, terminal device A will receive beacon frames broadcast by multiple surrounding network devices including network device A. When the user turns on the wireless network of terminal device A, the network list will display the multiple network devices. SSID.

In step S212, terminal device A sends a detection request.

For example, the detection request may include the SSID of the WIFI network supported by network device A, the BSSID of the WIFI network supported by network device A, the supported rate of the wireless LAN, the extended supported rate of the wireless LAN, etc. parameter.

For example, in the implementation, the network list of terminal device A displays the SSIDs of WIFI supported by multiple network devices including network device A. If the user wants to access the WIFI network supported by network device A, click on the WIFI network supported by network device A. WIFI network connection option, terminal device A responds to the user's operation and sends a detection request.

In step S213, network device A sends a detection response.

The detection response may include the SSID of the WIFI network supported by network device A, the BSSID of the WIFI network supported by network device A, and other information used to join the BSS. The other information used to join the BSS can be carried in the beacon frame. The description of other information used to join the BBS will not be described again.

After terminal device A receives the detection response, it can be determined that terminal device A has successfully scanned the wireless LAN supported by network device A.

2. Active scanning

Active scanning can have two scanning modes, active scanning mode A and active scanning mode B. The following describes each of these two modes.

Active scanning mode A

Active scanning method A is suitable for the scenario where terminal device A and network device A connect for the first time.

In active scanning mode A, step S211 is not included, but step S212 and step S213 are included. Before step S212, the scanning process may also include the following steps: terminal device A broadcasts a detection request A to search for available APs around it. Request A does not include specific SSID and BSSID; all network devices including network device A that receive detection request A will generally respond to detection request A, that is, send detection response A to terminal device A for detection request A. Each time The detection response A of a network device includes the SSID and BSSID of the WIFI network supported by the network device. For network device A, the detection response A of network device A includes the SSID and BSSID of the WIFI network supported by network device A. Furthermore, in step S212, the network list of terminal device A displays the SSIDs of WIFI supported by multiple network devices including network device A. The user clicks on the connection option of the WIFI network supported by network device A, and terminal device A responds The user's operation sends a detection request to network device A in a unicast manner. Then, in step S213, network device A sends a detection response to terminal device A.

Active scanning mode B

Active scanning method B is generally suitable for scenarios where the user manually enters the SSID on terminal device A.

In active scanning mode B, step S211 is not included, but step S212 and step S213 are included. In step S212, the user manually inputs the SSID of the WIFI network supported by network device A on terminal device A, and terminal device A broadcasts a detection request, which includes the SSID but does not include the BSSID. In step S213, multiple network devices will receive the detection request, but since the detection request only contains the SSID of the WIFI network supported by network device A, only network device A will respond to the detection request, that is, network device A will respond to the detection request. Terminal device A sends a detection response to the detection request, and the detection response includes the SSID and BSSID of the WIFI network supported by network device A.

Step S220 is an authentication process, used to authenticate that the devices to be connected are valid 802.11 devices. There are currently two authentication methods: open system authentication and shared key authentication.

In the open system authentication method, for example, terminal device A sends an authentication request to network device A to request authentication of the identity of terminal device A, and network device A sends an authentication response to terminal device A to indicate the identity of terminal device A. Certification passed.

In the shared key authentication method, for example, terminal device A sends an authentication request to network device A to request authentication of the identity of terminal device A; network device A sends the plaintext challenge information to the terminal through the first authentication response. Device A; terminal device A encrypts the challenge information in plain text and sends the encrypted challenge information to network device A through the second authentication response; network device A sends the encrypted challenge information to terminal device A in the second authentication response. The challenge information is decrypted and compared with the plaintext challenge information. If the decrypted challenge information matches the plaintext challenge information, network device A sends a third authentication response to terminal device A to indicate that the authentication is successful. If after decryption The challenge information matches the plain text challenge information, or network device A cannot decrypt the challenge information, and the third authentication response sent by network device A is used to indicate authentication failure.

The authentication process described above is only a schematic description. For specific descriptions of the authentication process, please refer to the relevant descriptions of related technologies and will not be described again.

Step S230 is an association process. During the association process, terminal device A sends an association request (associate request) to network device A to request to join the BSS. Network device A sends an association response (associate response) to terminal device A to request. Indicates whether terminal device A is allowed or denied to join the BSS.

For example, the association request includes information such as the SSID of the wireless LAN supported by network device A, the BSSID of network device A, and the supported rate of the wireless LAN.

In the above process of accessing the WIFI network, if a network device (for example, network device A) supports multiple frequency bands of WIFI networks, the WIFI networks of different frequency bands can be distinguished by different SSIDs and BSSIDs. For example, network device A supports 2.4G WIFI network and 5G WIFI network. The SSID and BSSID of the 2.4G WIFI network may be SSID1 and BSSID1 respectively, and the SSID and BSSID of the 5G WIFI network may be SSID2 and BSSID2 respectively.

In implementation, multiple virtual network devices can be virtualized through a physical entity network device. Each virtual network device can achieve the same function as the physical entity network device. Each virtualized network device can be called a virtual network device. Access point (virtual access point, VAP), different VAP can be configured with different SSID and BSSID. For scenarios where the same network device supports multiple frequency bands of WIFI networks, a physical entity network device can virtualize multiple VAPs, and a WIFI network of one frequency band corresponds to at least one VAP. For example, in a home environment, the main VAP used by family members and the guest VAP used by guests can be WIFI networks in the same frequency band, but the BSSDI of the main VAP and the guest VAP are different.

Figure 3a is an exemplary flow chart of a method 300 for a terminal device to access a WIFI network when both the network device and the terminal device support the 2.4G WIFI network and the 5G WIFI network provided by the embodiment of the present application. Figure 3b is another exemplary flow chart of a method 300 for a terminal device to access a WIFI network when both the network device and the terminal device support the 2.4G WIFI network and the 5G WIFI network provided by the embodiment of the present application.

In method 300, both network device A and terminal device A support 2.4G WIFI network and 5G WIFI network. In most cases, terminal device A scans to the 2.4G WIFI network first and accesses the 2.4G WIFI network first.

In the embodiment shown in Figure 3a, the terminal device accesses the WIFI network through passive scanning.

In step S311a, network device A sends a beacon frame of the 2.4G WIFI network (2.4G beacon frame for short), and in step S311b, network device A sends a beacon frame of the 5G WIFI network (5G beacon frame for short). It should be understood that step S311a and step S311b can be executed at the same time, or step S311a can be executed first and then step S311b, or step S311b can be executed first and then step S311a. However, even if step S311 and step S311b are executed one after another, there will be no difference between the two. The time interval is also very short.

After receiving the 2.4G beacon frame and the 5G beacon frame, terminal device A sends a detection request according to the signal strength, that is, it sends a detection request for a WIFI network with good signal strength. In step S312a, since the signal strength of the 2.4G WIFI network is greater than the signal strength of the 5G WIFI network, terminal device A sends the 2.4G detection request first.

For network device A, the 2.4G detection request is received first. Therefore, in step S313, network device A sends a 2.4G detection response to terminal device A first. At this time, it means that terminal device A scans the 2.4G WIFI first. network, and then access the 2.4G WIFI network through steps S320 and S330.

Optionally, in order to prevent network device A from being unable to respond to the 2.4G detection request due to network accidents, in step S312b, after sending the 2.4G detection request, terminal device A can also send a 5G detection request, so that network device A After being unable to respond to the 2.4G detection request, there is still a chance to respond to the 5G detection request, and try to ensure that terminal device A is connected to the WIFI network.

In an example, if network device A has normally sent a 2.4G detection response, it does not need to respond with a 5G detection response after receiving the 5G detection request. In another example, if network device A has normally sent a 2.4G detection response, it can also respond with a 5G detection response after receiving a 5G detection request. If terminal device A receives a 2.4G detection response and subsequently receives a 5G detection Response, subsequent received 5G detection requests can be ignored.

In the embodiment shown in Figure 3b, the terminal device accesses the WIFI network through active scanning. It should be understood that the active scanning mode may be the above active scanning mode A or the main sending scanning mode B.

In step S314a and step S315a, terminal device A sends a 2.4G detection request and a 5G detection request respectively.

In active scanning mode A, the 2.4G detection request and the 5G detection request are both detection requests sent by the terminal device to the network device through unicast mode. In active scanning mode B, the 2.4G detection request and the 5G detection request are both The terminal device sends a detection request to the network device through broadcasting. For specific description, please refer to the relevant description above and will not be described again.

After receiving the 2.4G detection request and the 5G detection request, network device A sends a detection response according to the signal strength, that is, it sends a detection response of the WIFI network with good signal strength. In step S315, when the signal strength of the 2.4G WIFI network is greater than the signal strength of the 5G WIFI network, network device A sends a 2.4G detection response. This means that terminal device A scans the 2.4G WIFI network first, and subsequently passes Step S320 and step S330 are connected to the 2.4G WIFI network.

In summary, it can be seen that under normal circumstances, terminal equipment will give priority to access the 2.4G WIFI network with good signal strength instead of accessing the 5G WIFI network. However, the theoretical negotiation rate of the 2.4G WIFI network is low and the interference is serious. Therefore, the actual available rate of the 2.4G WIFI network is very low and the user experience is poor. For the 5G WIFI network, even when the signal strength of the 5G WIFI network is extremely weak or even about to be disconnected, the rate of the 5G WIFI network is generally greater than the rate of the 2.4G WIFI network at the same location. Therefore, it is best to use the 2.4G WIFI network for a long time. communication, resulting in poor user experience.

Based on this, embodiments of the present application provide a WIFI communication method, device and network device. By executing relevant methods, the network device can try to make the terminal device preferentially access the 5G WIFI network to improve user experience.

In the embodiments of this application, technical solutions are mainly proposed from two aspects to achieve the above objectives.

In the first aspect, the network device obtains the signal strength of all terminal devices connected to the network device through the 2.4G WIFI network within a period of time, and when the signal strength of the terminal device is strong, the transmission power of the 2.4G WIFI network is reduced. . In this way, within the coverage area of the network equipment, the signal strength of the 5G WIFI network in as many coverage areas as possible is greater than the signal strength of the 2.4G WIFI network, so that terminal devices located in the coverage area have priority to access the 5G WIFI network.

In the second aspect, after receiving the detection request of the 2.4G WIFI network from the terminal device, the network device temporarily does not respond to the detection request of the 2.4G WIFI network and waits for a period of time. If the 5G WIFI network is received within the preset time period, The detection request of the 5G WIFI network is responded to, thereby connecting the terminal device to the 5G WIFI network.

It should be noted that the embodiments of the present application are described in terms of WIFI networks in two frequency bands: 2.4Ghz and 5Ghz, which should not be limited. The embodiments of the present application can also be extended to WIFI networks in any two different frequency bands.

The content of the first aspect will be described in detail below with reference to Figures 4 to 6b, and the content of the second aspect will be described in detail with reference to Figures 7 and 8b.

Figure 4 is a schematic flow chart of a WIFI communication method 400 provided by an embodiment of the present application.

The execution subject of method 400 may be a network device, or may be a processor or chip in the network device. For convenience of description, method 400 will be described by taking a network device as an example. Among them, the network equipment supports 2.4G WIFI network and 5G WIFI network.

In step S410, the network device obtains first signal information of M terminal devices connected to the network device through the 2.4G WIFI network within the first period, and the first signal information is used to indicate that the M terminal devices are connected to the network device in the first period. The signal strength within a period of time, M is an integer greater than or equal to 1.

The M terminal devices represent terminal devices that are connected to the network device through the 2.4G WIFI network during the first period. They can be terminal devices that have been connected to the network device through the 2.4G WIFI network during the first period, or they can be There are no limitations here on terminal equipment that is connected to the network equipment through the 2.4G WIFI network for a certain period of time within the first period.

In addition, the M terminal devices may include terminal devices that are stably connected to the network device, or may include terminal devices that are unstable to the network device, and there is no limitation here. For terminal devices with unstable connections, it should be understood that what the network device obtains is the signal strength before the terminal device goes offline.

In an example, the M terminal devices include terminal devices that are stably connected to the network device and terminal devices that are unstablely connected.

In another example, the M terminal devices only include terminal devices that are stably connected to the network device.

A stable connection means that the terminal device does not go online and offline frequently and the changes in signal strength are relatively small. In general, a terminal device with a stable connection can be used to characterize a device whose location is basically unchanged.

An unstable connection means that the terminal device goes online and offline frequently. In general, terminal devices with unstable connections can be used to characterize mobile phones, tablets and other devices with lower system versions, as well as devices with frequent changes in location; in addition, most terminal devices with unstable connections only support 2.4G WIFI networks .

In implementation, for example, within the first period, the network device can periodically collect the signal strength of the terminal device connected to the network device through the 2.4G WIFI network according to the first duration, so as to finally obtain M signals within the first period. The first signal information of the terminal device.

It should be understood that the first period of time is the period of time for the network device to collect signal strength. That is to say, every first period of time, the network device collects the signal strength of all terminal devices connected to the network device through the 2.4G WIFI network. In addition, the duration of the first period is an integer multiple of the first duration. For example, the first duration is 10 minutes and the duration of the first period is 24 hours.

Due to factors such as the instability of the connection of each terminal device and the different times at which each terminal device accesses the 2.4G WIFI network, the network device may collect the signal strengths of different terminal devices during different periods of the first period. For example, in the first period of the first period, there are two terminal devices (Terminal Device 1 and Terminal Device 2) connected to the network device through the 2.4GWIFI network, and the two terminals can be collected at the end of the first period. The signal strength of the device. In the second cycle, there are three terminal devices (Terminal Device 1, Terminal Device 2 and Terminal Device 3) connected to the network device through the 2.4G WIFI network. It can be collected at the end of the second cycle. to the signal strength of the three terminal devices. Compared with collecting the signal strengths of terminal device 1 and terminal device 2 in the first cycle, the signal strength of terminal device 3 is collected in the second cycle.

It should be noted that the first signal information indicates all signal strengths of the M terminal devices within the first period, including all signal strengths of each terminal device within the first period. In addition, all signal strengths of each terminal device in the first period include at least one signal strength, and the number of all signal strengths of each terminal device in the first period may be the same or different. Assume that there are 10 periods of collecting signal strength in the first period. During the first period, terminal device 1 has been stably connected to the network device. Then, the number of signal strengths of terminal device 1 obtained in the first period is the largest. , is 10 signal strengths. Terminal device 2 only accesses the 2.4G WIFI network in the second cycle. Then, the number of signal strengths of terminal device 2 obtained in the first period is at most 8. If some subsequent If the terminal device 2 is offline during the period, then the number of signal strengths of the terminal device 2 obtained in the first period is less than 8.

It should be understood that the signal strength of the terminal device obtained by the network device represents the signal strength of the signal received by the network device from the terminal device, and the signal strength of the signal received by the network device from the terminal device is the same as the signal strength received by the terminal device from the network device. The signal strength of the received signal is directly proportional. Whether it is the signal strength of the signal received by the network device or the signal strength of the signal received by the terminal device, it represents the signal strength of the current WIFI network. Under normal circumstances, the signal strength of the signal received by the network device from the terminal device is basically the same as the signal strength of the signal received by the terminal device from the network device. In the through-wall mode, the signal strength of the signal received by the network device from the terminal device is A slightly stronger signal than the signal the end device receives from the network device.

In step S420, when at least some of the signal strengths of the M terminal devices in the first period are greater than the first strength threshold, the network device reduces the transmission power of the 2.4G WIFI network from the first transmission power to Second transmit power.

It should be understood that the first transmission power is the transmission power before reducing the transmission power of the 2.4G WIFI network, and the second transmission power is the transmission power after reducing the transmission power of the 2.4G WIFI network.

In this embodiment of the present application, when at least part of the signal strength does not meet the condition of being greater than the first strength threshold, the network device does not reduce the transmission power of the 2.4G WIFI network, that is, the network device continues to use the first transmission power to send signals.

The first strength threshold is used to determine whether the signal strength is good or bad. If the signal strength is greater than the first strength threshold, it means the signal strength is good. If the signal strength is less than the first strength threshold, it means the signal strength is poor. It should be understood that at least some of the signal strengths are greater than the first strength threshold, which means that each of the at least some of the signal strengths is greater than the first strength threshold.

In the embodiment of the present application, at least partial signal strength includes full signal strength and partial signal strength.

In some embodiments, at least part of the signal strength is a part of the signal strengths of the M terminal devices in the first period.

For example, a probability value may be used to define part of the signal strengths of the M terminal devices in the first period, and the probability value is less than 1. Assume that the probability value is 80%, and 80% of the signal strengths of the M terminal devices in the first period are determined as partial signal strengths. For example, the probability value is 80%, M=3, and the number of acquired signal strengths of three terminal devices in the first period is 10. Then, as long as 10*80%=8 signal strengths are greater than the first strength threshold, You can reduce the transmission power of the 2.4G WIFI network.

By determining that part of the signal strengths of the M terminal devices in the first period is greater than the first strength threshold, reducing the transmit power of the 2.4G WIFI network can avoid as much as possible the failure of the device itself or other small probabilities. The unstable signal strength caused by the event improves the fault tolerance mechanism of the system.

In some other embodiments, at least part of the signal strength is all signal strengths of the signal strengths of the M terminal devices in the first period.

By determining that all the signal strengths of the M terminal devices in the first period are greater than the first strength threshold and reducing the transmission power of the 2.4G WIFI network, the reduction of the transmission power of the 2.4G WIFI network can be minimized. Impact on 2.4G business and overall improvement of communication stability.

In this step, if at least some of the signal strengths of the M terminal devices in the first period are greater than the first strength threshold, it means that the signal strength of the current 2.4G WIFI network is good and it basically has enough ability to transmit 2.4 GWIFI network business (referred to as 2.4G business), therefore, appropriately reducing the transmission power of the 2.4G WIFI network will not have a great impact on the 2.4GWIFI network. It should be understood that when the transmission power of the 2.4G WIFI network is reduced, the signal strength of the 2.4G WIFI network signal received by the terminal device or network device will also be reduced.

As mentioned before, since the 5G WIFI network is more susceptible to attenuation, in many cases the signal of the 2.4G WIFI network is stronger at the same location. The terminal device will generally give priority to access the 2.4G WIFI network with good signal strength and will no longer access it. 5GWIFI network affects user experience. However, after reducing the transmission power of the 2.4G WIFI network, within the coverage area of the network equipment, the signal strength of the 5G WIFI network in as many coverage areas as possible will be greater than the signal strength of the 2.4G WIFI network. In this way, in 5G Within the coverage area where the signal strength of the WIFI network is greater than the signal strength of the 2.4G WIFI network, the terminal device will scan the 5G WIFI network first to access the 5G WIFI network.

Figure 5 is a schematic diagram of state changes in the coverage area of the network device before and after reducing the transmission power of the 2.G WIFI network provided by the embodiment of the present application. Looking from top to bottom, the first picture in Figure 5 is a schematic diagram of the signal strength and terminal equipment in the coverage area of the network equipment before reducing the 2.G WIFI network. The second picture in Figure 5 is a schematic diagram of reducing the 2.GWIFI Schematic diagram of the signal strength within the coverage area of the network equipment and the terminal equipment behind the network.

In the first picture in Figure 5, area 502 is the entire coverage area of network device 510, and area 501 is part of the coverage area of network device 510. In area 501, the signal strength of the 2.4G WIFI network is greater than that of the 5G WIFI network. Signal strength, network device 510, terminal device 521, and terminal device 522 are all connected through the 2.4G WIFI network. The network device 510 obtains the signal strengths of the terminal device 521 and the terminal device 522 within a period of time and finds that the signal strengths are relatively good. Therefore, the transmission power of the 2.4G WIFI network is reduced. In the second picture in Figure 5, the signal strength in area 501 has changed. The signal strength of the 5G WIFI network is greater than the signal strength of the 2.4G WIFI network. The terminal device 521 and the terminal device 522 can continue to maintain communication with the network device 510. Communication connection of the 2.4G WIFI network. However, the terminal device 523 located in area 501 wants to access the WIFI network. Since the signal strength of the 5G WIFI network in area 501 is greater than the signal strength of the 2.4G WIFI network, the terminal device 523 has priority to access the WIFI network. 5G WIFI network communicates with network devices through 5G WIFI network.

It should be understood that for terminal devices that have been connected to the network device through the 2.4G WIFI network before reducing the transmission power of the 2.4G WIFI network (that is, the network device uses the first transmission power to send signals), after reducing the transmission power of the 2.4G WIFI network After that (that is, the network device uses the second transmission power to send signals), if the signal strength of the 5G WIFI network in the area where the terminal device is located is greater than the signal strength of the 2.4G WIFI network, in an example, the terminal device can continue to maintain the previous 2.4 The connection of the WIFI network is like the terminal device 521 and the terminal device 522 in Figure 5. In another example, the terminal device can also switch from the 2.4G WIFI network to the 5G WIFI network. This embodiment of the present application does not make any limitations.

Figure 6a is a schematic flow chart of the process of a terminal device accessing the WIFI network after reducing the transmission power of the 2.4G WIFI network provided by the embodiment of the present application. Figure 6b is another schematic flow chart of the process of a terminal device accessing the WIFI network after reducing the transmission power of the 2.4G WIFI network provided by the embodiment of the present application.

It should be understood that after reducing the transmission power of the 2.4G WIFI network, the signal strength of the 5G WIFI network is greater than the signal strength of the 2.4G WIFI network in the area where terminal device A is located. Terminal device A can be terminal device 523 in Figure 5.

In the embodiment shown in Figure 6a, terminal device A accesses the 5G WIFI network through passive scanning. In step S431a and step S431b, the network device sends a 2.4G beacon frame and a 5G beacon frame respectively. It should be understood that step S431a and step S431b can be executed at the same time, or step S431a can be executed first and then step S431b, or step S431b can be executed first and then step S431a. However, even if step S431 and step S431b are executed one after another, there will be no difference between the two. The time interval is also very short.

After receiving the 2.4G beacon frame and the 5G beacon frame, terminal device A sends a detection request according to the signal strength, that is, it sends a detection request for a WIFI network with good signal strength. In step S441a, since the signal strength of the 5G WIFI network is greater than the signal strength of the 2.4G WIFI network, terminal device A sends the 5G detection request first.

For the network device, the 5G detection request is received first. Therefore, in step S450, the network device sends the 5G detection response to the terminal device A first. At this time, it means that the terminal device A scans the 5G WIFI network first. Subsequent steps are passed. S460 and step S470 are connected to the 5G WIFI network.

Optionally, in order to avoid network device A being unable to respond to the 5G detection request due to network accidents, in step S441b, after sending the 5G detection request, terminal device A can also send a 2.4G detection request to prevent the network device A from responding when the network device is unable to respond. After the 5G detection request, it will also have the opportunity to respond to the 2.4G detection request, ensuring that terminal device A is connected to the WIFI network as much as possible.

In an example, if the network device has normally sent out a 5G detection response, it does not need to respond to the 2.4G detection response after receiving the 2.4G detection request. In another example, if the network device has normally sent a 5G detection response, it can also respond with a 2.4G detection response after receiving a 2.4G detection request. If terminal device A receives a 5G detection response, and subsequently also receives a 2.4G detection Response, subsequent received 2.4G detection requests can be ignored.

In the embodiment shown in Figure 6b, the terminal device accesses the WIFI network through active scanning.

In step S442a and step S442a, terminal device A sends a 5G detection request and a 2.4G detection request respectively.

It should be understood that step S442a and step S442b can be executed at the same time, or step S442a can be executed first and then step S442b, or step S442b can be executed first and then step S442a. However, even if step S442a and step S442b are executed one after another, there will be no difference between the two. The time interval is also very short.

After receiving the 2.4G detection request and the 5G detection request, the network device sends a detection request according to the signal strength, that is, it sends a detection request for the WIFI network with good signal strength. In step S450, when the signal strength of the 5G WIFI network is greater than the signal strength of the 2.4GW WIFI network, the network device sends a 5G detection response. This means that terminal device A has priority scanned the 5G WIFI network. Subsequently, step S460 and steps S470 is connected to the 5G WIFI network.

Since the network changes dynamically, terminal devices in different periods have different access to the WIFI network. Therefore, in implementation, the network device can execute method 400 at regular intervals to determine whether to reduce the transmission power of the 2.4G WIFI network.

In the WIFI communication method provided by the embodiment of the present application, the network device obtains the signal strengths of M terminal devices connected to the network device through the 2.4G WIFI network in the first period, and the signal strengths of the M terminals in the first period are When at least some of the signal strengths are greater than the first strength threshold, it means that the overall signal strength of the current 2.4G WIFI network is better. Therefore, the transmission power of the 2.4G WIFI network is reduced and the transmission power of the 2.4G WIFI network is changed from the first strength threshold to the first strength threshold. The transmission power is reduced to the second transmission power. While trying to avoid a major impact on the 2.4G WIFI network, the signal strength of the 5G WIFI network in as many coverage areas as possible is greater than the signal strength of the 2.4G WIFI network. In this way, In the coverage area where the signal strength of the 5G WIFI network is greater than the signal strength of the 2.4G WIFI network, the terminal device will scan the 5G WIFI network first and then access the 5G WIFI network to improve user experience.

In step S420, the network device can reduce the transmission power of the 2.4G WIFI network in the following two methods (Method 1 and Method 2).

Way 1

In some embodiments, the network device determines the signal strength with the worst signal strength among at least part of the signal strengths of the M terminal devices in the first period as the target signal strength; the network device determines the signal strength according to the target signal strength and the second strength. The intensity difference between the thresholds determines the adjustment range of the transmission power of the 2.4G WIFI network. The second intensity threshold is smaller than the first intensity threshold; within the adjustment range, the network device changes the transmission power of the 2.4G WIFI network from the first transmission power to Reduce to second transmit power.

Among them, the signal strength with the worst signal strength is the signal strength with the smallest value among at least some of the signal strengths.

The second strength threshold can be understood as the lowest value of signal strength capable of normal communication, and the second strength threshold is smaller than the first strength threshold used to determine that the signal strength is good. For example, the second intensity threshold is -70dBm and the first intensity threshold is -50dBm.

In implementation, the power change value of the transmit power is proportional to the intensity change value of the signal strength, that is, the power change value is large, the intensity change value is large, the power change value is small, and the intensity change value is small. If the units of power and signal strength are the same, for example, both are dB or dBm, for example, the power change value and the intensity change value can be the same, and a power change value can be obtained through an intensity change value, for example, the intensity change value is 8dB. , the power change value is also 8dB. In this embodiment, the network device determines the strength difference between the target signal strength and the second strength threshold. The strength difference can be understood as a strength change value. The adjustment amplitude of the transmit power is determined by the strength difference. The adjustment amplitude is It is a power change value. For example, if the intensity difference is 20dB, the adjustment amplitude is also 20dB.

During the process of adjusting the transmission power, the network equipment will reduce the transmission power of the 2.4G WIFI network within the adjustment range, and adjust the transmission power of the 2.4G WIFI network from the first transmission power to the second transmission power. That is to say, the power change value between the first transmission power and the second transmission power is within the adjustment range, that is, the power change value between the first transmission power and the second transmission power is less than or equal to the adjustment range, for example, the adjustment range The amplitude is 20dB, and the power change value between the first transmission power and the second transmission power is less than or equal to 20dB.

In this embodiment, since the target signal strength is the signal strength with the worst signal strength among at least part of the signal strengths of the M terminal devices within the first period, and the second strength threshold is used to characterize the ability to perform normal communication The lowest value of the signal strength is determined by the strength difference between the target signal strength and the second strength threshold. The adjustment range of the transmit power of the 2.4GWIFI network can be expressed as the maximum value that the transmit power can be adjusted. Therefore, within the adjustment range Reduce the transmit power of the 2.4G WIFI network. The power change value of the transmit power will not be too large. The signal strength of the adjusted 2.4G WIFI network will not be very poor but within the range of normal communication. It is good for the 2.4G WIFI network. The impact is not big. At the same time, the signal strength of the 5G WIFI network in as many coverage areas as possible can be greater than the signal strength of the 2.4G WIFI network, so that terminal devices can access the 5G WIFI network preferentially to improve user experience. In short, reducing the transmit power of the 2.4G WIFI network within the adjustment range can better balance the normal communication of the 2.4G WIFI network and the priority access of the 5G WIFI network.

Since the network changes dynamically, even if the transmit power is reduced within the adjustment range, if the power change between the first transmit power and the second transmit power is too large, it may greatly affect the normal communication of the 2.4G WIFI network. Therefore, in some embodiments, the power change value between the first transmit power and the second transmit power is smaller than the adjustment amplitude.

For example, in implementation, the power change value between the first transmission power and the second transmission power may be the product of the adjustment amplitude and the first coefficient, and the first coefficient is less than 1. For example, the first coefficient may be a preset value. For example, the adjustment amplitude is 30, the first coefficient is 0.5, and the power change value between the first transmission power and the second transmission power is 15.

When reducing the transmission power of the 2.4G WIFI network within the adjustment range, the power change value between the first transmission power and the second transmission power is less than the adjustment range, that is, only a part of the adjustment range is reduced, and a part of the adjustment range is reserved. In this way, it can better cope with dynamic changes in the network due to various abnormalities, and better ensure that the signal strength of the adjusted 2.4G WIFI network will not be very poor, thereby further reducing the impact on the 2.4G WIFI network.

In this embodiment of the present application, the network device can gradually reduce the transmission power of the 2.4G WIFI network according to the gradient. When the transmit power of the 2.4G WIFI network is reduced for the first time, the power change value is less than the adjustment range. The power change value can be set larger. After a period of time, continue to execute the embodiment of this application to check whether the signal strength of the 2.4G WIFI network is good. , and determine whether the transmission power of the 2.4G WIFI network can be continued to be reduced based on the signal strength. When it is determined that the transmission power of the 2.4GWIFI network can be reduced, the power change value can be set smaller. When it is determined that the transmission power of the 2.4GWIFI network cannot be reduced, the transmission power of the 2.4G WIFI network will no longer be reduced.

Way 2

In some embodiments, a power threshold can be set for the 2.4G WIFI network, and the power threshold can represent the lowest value of the transmission power of the 2.4G WIFI network. The adjustment amplitude is the difference between the reduced second transmission power of the 2.4G WIFI network and the power threshold. The power change value between the first transmission power and the second transmission power is less than or equal to the adjustment amplitude, that is, the second transmission The power is greater than or equal to the power threshold.

In an example, the power change value between the first transmit power and the second transmit power is less than the adjustment amplitude, that is, the second transmit power is greater than the power threshold. In this way, it can better cope with dynamic changes in the network due to various abnormalities, and better ensure that the signal strength of the adjusted 2.4G WIFI network will not be very poor, thereby further reducing the impact on the 2.4G WIFI network.

In another example, the power change value between the first transmit power and the second transmit power is equal to the adjustment amplitude.

In the same way, network equipment can also gradually reduce the transmission power of the 2.4G WIFI network according to the gradient. For specific description, please refer to the relevant description of method 1 and will not be repeated.

It should be noted that when method 400 is executed multiple times to reduce the transmission power of the 2.4G WIFI network, the above-mentioned first transmission power and the second transmission power may be before and after any reduction of the transmission power of the 2.4G WIFI network. Transmit power. For example, in the process of reducing the transmission power of the 2.4G WIFI network in two consecutive executions of method 400, the first transmission power may be the transmission power before the first execution of method 400, and the second transmission power may be the transmission power before the first execution of method 400. The transmission power after the method 400, or the first transmission power may be the transmission power before the method 400 is performed for the second time, and the second transmission power is the transmission power after the method 400 is performed for the second time, wherein the method 400 is performed for the second time. The previous transmit power is the reduced transmit power after executing 400 for the first time.

After the network device reduces the transmit power of the 2.4G WIFI network from the first transmit power to the second transmit power, the network device continues to obtain the signal strength of the terminal device in the next period to determine whether to continue to reduce the transmit power of the 2.4G WIFI network. .

Specifically, the network device obtains the second signal information of the N terminal devices connected to the network device through the 2.4G WIFI network in the second period, and the second signal information is used to indicate the signal strength of the N terminal devices in the second period. ;

The network device determines whether to continue to reduce the transmission power of the 2.4G WIFI network based on the signal strengths of the N terminal devices in the second period and the first strength threshold.

It should be understood that the second period is the period in which the signal strength of the terminal device is acquired for the first time after the first period.

The N terminal devices are terminal devices that are connected to the network device through the 2.4G WIFI network during the second period. They can be terminal devices that have been connected to the network device through the 2.4G WIFI network during the second period, or they can be terminal devices that are connected to the network device through the 2.4G WIFI network during the second period. Terminal devices that are connected to network devices through the 2.4G WIFI network within a certain period of time are not limited here; in addition, the N terminal devices can include terminal devices that are stably connected to network devices, and can also include terminal devices that are stably connected to network devices. Terminal devices with unstable connections are not subject to any restrictions here. For specific explanations about the N terminal devices, please refer to the relevant explanations about the M terminal devices above, and will not be described again.

In the process of the network device determining whether to continue to reduce the transmission power of the 2.4G WIFI network based on the signal strengths of the N terminal devices in the second period and the first strength threshold, the following situations may occur.

In an example, when at least some of the signal strengths of the N terminal devices in the second period are greater than the first strength threshold, the network device may continue to reduce the transmission power of the 2.4G WIFI network. Regarding the process of network equipment reducing the transmission power of the 2.4G WIFI network, please refer to the relevant description above and will not go into details again.

The at least partial signal strength here includes full signal strength and partial signal strength, where the full signal strength is all the signal strengths of the N terminal devices in the second period, and the partial signal strength is the signal strength of the N terminal devices in the second period. The partial signal strength of the signal strength within the period. For a specific explanation of the partial signal strength, please refer to the above related explanation of the partial signal strength of the signal strengths of the M terminal devices in the first period, and will not be described again.

In another example, when at least part of the signal strengths of the N terminal devices in the second period is less than or greater than the first strength threshold, the network device no longer reduces the transmission power of the 2.4G WIFI network.

In this example, since at least part of the signal strength is less than the first strength threshold, it means that the at least part of the signal strength is poor. Therefore, for example, the transmission power of the 2.4G WIFI network can be appropriately increased, that is, the transmission power of the 2.4G WIFI network can be appropriately increased. The transmission power is increased from the second transmission power to a third transmission power, where the third transmission power is smaller than the first transmission power.

In this way, the network equipment can dynamically adjust the transmission power of the 2.4G WIFI network in real time according to the signal strength to maintain the stability of the 2.4G WIFI network for as long as possible. At the same time, it can also reduce the transmission power of the 2.4G WIFI network to a certain extent. Connect terminal devices to the 5G WIFI network as much as possible to improve user experience.

In the embodiment of this application, after reducing the transmission power of the 2.4G WIFI network, in order to facilitate the detection of the signal strength after reducing the transmission power as soon as possible, the length of time for the network device to obtain the signal strength of the terminal device in the second period can be set shorter. , that is, the duration of the second period is shorter than the duration of the first period.

For example, the first time period is 24 hours, and the second time period can be 3 hours.

In the WIFI communication method provided by the embodiment of the present application, the network device can obtain the signal strength of the terminal device connected to the network device at regular intervals to determine whether to reduce the signal strength of the 2.4G WIFI network based on the signal strength. According to the first period After reducing the transmit power of the 2.4G WIFI network from the first transmit power to the second transmit power, the signal strengths of the M terminal devices are determined based on the obtained signal strengths of the N terminal devices in the second period after the first period. Whether to continue to reduce the signal strength of the 2.4G WIFI network, by setting the duration of the second period to be shorter than the duration of the first period, the signal strength of the 2.4G WIFI network after reducing the transmission power of the 2.4G WIFI network can be quickly detected , so that network equipment can make timely adjustments.

As mentioned above, during the first period, the network device periodically collects the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the first duration to obtain the first signal information. Then, the network device obtains the first signal information in the first period. The process of the second signal information of N terminal devices connected to the network device through the 2.4G WIFI network in the second period can be as follows:

During the second period, the network device periodically collects the signal strength of the terminal device connected to the network device through the 2.4G WIFI network according to the second duration to obtain the second signal information, wherein the second duration is shorter than the first duration.

For example, the first duration may be 10 minutes and the second duration may be 5 minutes.

It should be understood that the second duration is the duration of one cycle for the network device to collect signal strength. That is to say, every second duration, the network device collects the signal strength of the terminal device. In addition, the duration of the second period is an integer multiple of the second duration. For example, the second duration is 5 minutes and the duration of the second period is 3 hours.

In the WIFI communication method provided by the embodiment of the present application, in order to avoid obtaining too few signal strengths during the shorter second period, the second period is set shorter, that is, the second period is shorter than the first period. , In this way, a certain amount of signal strength can be obtained in the shorter second period, which is conducive to quickly detecting the reduced signal strength of the 2.4GWIFI network, so that the network equipment can make timely adjustments.

The above describes the first aspect of the embodiments of the present application in detail, and the following describes the second aspect of the embodiments of the present application in detail.

Figure 7 is a schematic flow chart of a WIFI communication method 500 provided by an embodiment of the present application.

In step S520, after receiving the first 2.4G detection request of the 2.4G WIFI network sent by the terminal device and not receiving the first 5G detection request of the 5G WIFI network, the network device starts a timer.

In implementation, the terminal device sends the first 2.4G detection request on the 2.4Ghz working frequency band, and the network device receives the first 2.4G detection request on the 2.4Ghz working frequency band.

For example, the first 2.4G detection request may be a detection request sent by the terminal device in a broadcast mode in the active scanning mode or in a unicast mode in the passive scanning mode.

If the first 2.4G detection request is sent by the terminal device through broadcast mode in active scanning mode A, the first 2.4G detection request does not include the specific SSID and BSSID; in active scanning mode B, the first 2.4G detection request does not include the specific SSID and BSSID. The first 2.4G detection request includes the SSID of the 2.4G WIFI network supported by the network device. For specific content, please refer to the above and the description of related technologies, and will not be described again.

If the first 2.4G detection request is sent by the terminal device in unicast mode in passive scanning mode, the first 2.4G detection request includes the SSID, BSSID, supported rate, and extended support of the 2.4G WIFI network supported by the network device. Rate (extended supported rate) and other parameters, please refer to the above and the description of related technologies for specific content, and will not be described again.

When the network device receives the first 2.4G detection request and does not receive the first 5G detection request, the network device starts a timer. During the timer period, the network device temporarily does not respond to the first 2.4G detection request. The first 2.4G detection response, but wait for a period of time to see whether the first 5G detection request sent by the terminal device is received.

The duration of the timer can be any predefined value. However, if the duration is too long, it will affect the response speed and lead to poor user experience. If the duration is too short, it will not be conducive to the terminal device's priority access to the 5G WIFI network. Therefore, the timer length should be set appropriately so that the terminal device has priority to access the 5G WIFI network without affecting the response speed and meeting the conditions.

For example, the timer length is less than or equal to 2 seconds.

In step S541, if the first 5G detection request is received within the timer period, the network device sends a first 5G detection response to the first 5G detection request to the terminal device to access the terminal device to the 5G WIFI network. middle.

Correspondingly, the terminal device receives the first 5G detection response to access the 5G WIFI network.

In implementation, the network device sends the first 5G detection response to the terminal device on the 5Ghz working frequency band, and the terminal device receives the first 5G detection response on the 5Ghz working frequency band.

It can be understood that before step S541, the terminal device sends the first 5G detection request to the network device, and the network device receives the first 5G detection request. In implementation, the terminal device sends the first 5G detection request on the 5Ghz working frequency band, and the network device receives the first 5G detection request on the 5Ghz working frequency band.

It should be understood that receiving the first 5G detection request within the duration of the timer may mean that the first 5G detection request is received before the end time of the timer or at the end time of the timer. This embodiment of the present application does not make any limitation.

In addition, the network device can send the first 5G detection response after receiving the first 5G detection request, and does not need to wait for the timer to expire before sending the first 5G detection response. In this way, the response speed can be improved.

For example, the first 5G detection request may be a detection request sent by the terminal device through a broadcast mode of active scanning mode or a unicast mode of passive scanning mode.

If the first 5G detection request is sent by the terminal device through broadcast in active scanning mode A, the first 5G detection request does not include the specific SSID and BSSID; in active scanning mode B, the first 5G detection request does not include the specific SSID and BSSID. The 5G detection request includes the SSID of the 5G WIFI network supported by the network device. For specific content, please refer to the above and the description of related technologies, and will not be described again.

If the first 5G detection request is sent by the terminal device in the passive scanning mode through unicast mode, the first 5G detection request includes the SSID, BSSID, supported rate (supported rate), extended supported rate ( extended supported rate) and other parameters. For specific content, please refer to the description above and related technologies, and will not be described again.

For example, the first 5G detection response may include the SSID, BSSID and other information for joining the BSS of the 5G WIFI network supported by the network device. For specific content, please refer to the above and the description of related technologies, which will not be described again.

The network device does not respond to the first 2.4G detection request before the timer expires. The purpose is to wait for the first 5G detection request. When the network device receives the first 5G detection request within the timer, that is, in advance Receiving the first 5G detection request within the set waiting time means that the terminal device has the need to access the 5G WIFI network, and the network device also wants the terminal device to access the 5G WIFI network. Therefore, the network device sends the first 5G detection request to the terminal device. 5G detection response.

It should be noted that the size of the step numbers does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

For the terminal device, the terminal device can send the first 2.4G detection request and the first 5G detection request at the same time, or it can send the first 2.4G detection request and then the first 5G detection request, or it can send the first 5G detection request first. request to send the first 2.4G detection request again. However, even if the first 2.4G detection request and the first 5G detection request are sent successively, the time interval between sending the first 2.4G detection request and the first 5G detection request is also very short.

Under normal circumstances, if there are no emergencies on the network (for example, poor signal quality leading to packet loss and retransmission or queue scheduling causing signaling sent later to be received first by the peer), signaling sent first will be received first by the peer. , however, in the event of a network emergency, there will also be situations where the signaling sent first will be received later by the peer end or the signaling sent later will be received first by the peer end. Therefore, no matter whether the terminal device sends the first 2.4 Regardless of the order of the G detection request and the first 5G detection request, the network device will receive the first 2.4G detection request first and then the first 5G detection request, especially when the terminal device sends the first 2.4G detection request first. At times, it is common for network devices to receive the first 2.4G detection request first.

The WIFI communication method provided by the embodiment of the present application is compared with the prior art solution in which the network device responds to the first 2.4G detection request after receiving the first 2.4G detection request, thereby connecting the terminal device to the 2.4G WIFI network. , the embodiment of the present application configures a timer for waiting for a 5G detection request in the network device. After receiving the first 2.4G detection request sent by the terminal device, the network device does not temporarily respond to the first 2.4G detection request, but Start the timer and wait for the first 5G detection request within the timer's duration. If the first 5G detection request is received within the timer's duration, respond to the first 5G detection request from the 5GWIFI network. In this way, you can access 5G first. WIFI network, thereby improving user experience.

It should be understood that in the passive scanning mode, before step S520, the network device will also send 2.4G beacon frames and 5G beacon frames to the terminal device. After step S541, it will access the 5G WIFI network through the authentication process and association process. middle. In active scanning mode A, after step S541, the terminal device will also send another 5G detection request (denoted as the second 5G detection request) to the network device through unicast mode, and the network device will respond with another 5G detection response (denoted as the second 5G detection request). for the second 5G detection request), and then access the 5G WIFI network through the authentication process and association process. In active scanning mode B, after step S541, the 5G WIFI network is accessed through the authentication process and the association process.

Below, through Figure 8a and Figure 8b, the process of terminal devices accessing the 5G WIFI network under different scanning modes is described in detail.

Figure 8a is a schematic interaction diagram of the WIFI communication method 500 provided by the embodiment of the present application. The terminal device can access the 5G WIFI network through passive scanning mode or the above active scanning mode B.

The process of using active scanning mode B to scan the WIFI network to connect to the WIFI network includes steps S511 to S572, but does not include steps S501 to S504.

In step S511, the terminal device sends the first 2.4G detection request to the network device in a broadcast manner.

As mentioned before, the first 2.4G probe request includes the SSID of the 2.4G WIFI network supported by the network device, but does not include the BSSID.

In step S512, the network device receives the first 2.4G detection request.

In step S520, when the first 2.4G detection request is received and the first 5G detection request is not received, the network device starts a timer.

In step S531, the terminal device sends the first 5G detection request to the network device in a broadcast manner.

As mentioned before, the first 5G probe request includes the SSID of the 5G WIFI network supported by the network device, but does not include the BSSID.

In step S532, the network device receives the first 5G detection request.

In step S541, if the first 5G detection request is received within the timer period, the network device sends the first 5G detection response to the terminal device to access the terminal device to the 5G WIFI network.

It should be understood that when the terminal device sends the first 2.4G detection request and the first 5G detection request through broadcast, multiple network devices will receive the first 2.4G detection request and the first 5G detection request. Based on the steps When S541 only sends a response to the first 5G detection request, since the first 5G detection request only contains the SSID of the WIFI network supported by the specific network device, only the specific network device will respond to the first 5G detection request, that is, the specific network The device sends a response to the first 5G detection to the terminal device.

In step S542, the terminal device receives the first 5G detection response to access the 5G WIFI network.

In steps S571 and S572, after the terminal device receives the first 5G detection response, the network device and the terminal device perform an authentication process and an association process.

Exemplarily, the terminal device sends an authentication request to the network device, and the network device finally sends an authentication response indicating successful authentication to the terminal device to complete the authentication process.

For example, the terminal device sends an association request to the network device, and the network device finally sends an association response to the terminal device to indicate whether to allow or deny the terminal device to access the 5G WIFI network. If the association response is used to indicate that the terminal device is allowed to access the 5G WIFI network, it means that the terminal device successfully accesses the 5G WIFI network, and subsequent communication between the terminal device and the network device can be normal through the 5G WIFI network to transmit data.

For specific descriptions of the authentication process and the association process, please refer to the above steps S220 and S230 and the related descriptions of related technologies, and will not be described again.

The process of scanning the WIFI network to connect to the WIFI network using passive scanning includes steps S501 to S572.

Before step S511, referring to Figure 8a, the method 500 also includes:

In step S501, the network device sends a 2.4G beacon frame of the 2.4G WIFI network to the terminal device.

In step S502, the terminal device receives the 2.4G beacon frame.

In step S503, the network device sends the 5G beacon frame of the 5G WIFI network to the terminal device.

In step S504, the terminal device receives the 5G beacon frame.

It should be understood that the sequence number of the steps does not mean the order of execution.

For network equipment, the network equipment can send 2.4G beacon frames and 5G beacon frames at the same time, or it can send 2.4G beacon frames first and then send 5G beacon frames, or it can send 5G beacon frames first and then send 2.4G Beacon frame, however, even if the 2.4G beacon frame and the 5G beacon frame are sent successively, the time interval between sending the 2.4G beacon frame and the 5G beacon frame is also very short.

For the terminal device, after receiving the 2.4G beacon frame and the 5G beacon frame, for example, different detection requests can be sent based on any of the following situations.

In case 1, based on the signal strength of the WIFI network, the terminal device first sends a detection request for the WIFI network with good signal strength and then sends a detection request for the WIFI network with poor signal strength. Then, the signal strength of the 2.4G WIFI network is greater than that of 5G Under the signal strength of the WIFI network, the terminal device first sends the first 2.4G detection request and then the first 5G detection request.

In case 2, the terminal device sends a detection request for any beacon frame, that is, as long as it receives a 2.4G beacon frame and a 5G beacon frame, it will send the first 2.4G detection request and the first 5G detection request, according to the first received Send on first-come-first-served basis.

In case 3, the terminal device has been connected to the network device through the 2.4G WIFI network (or 5G WIFI network), and the terminal device stores information about the 2.4G WIFI network (or 5G WIFI network) used to connect to the network device. , for the convenience of connection, the system stipulates that after monitoring the 2.4G beacon frame (or 5G beacon frame) of the network device, it will only send the first 2.4G detection request (or send the first 5G detection request). In order to make use of the existing 2.4G WIFI network (or 5G WIFI network) information used to connect the network device, the terminal device can quickly access the 2.4G WIFI network (or 5G WIFI network).

In short, after receiving the 2.4G beacon frame and the 5G beacon frame, the terminal device will first send the first 2.4G detection request to the network device in step S511. After the network device receives the first 2.4G detection request and does not When the first 5G detection request is received, step S520 is executed to start the timer, and when the first 5G detection request sent by the terminal device is received within the timer period, step S541 is executed to send the first 5G detection. response. In steps S571 and S572, after the terminal device receives the first 5G detection response, the network device and the terminal device perform an authentication process and an association process.

It should be understood that in the passive scanning mode, the terminal device sends the first 2.4G detection request and the first 5G detection request in a unicast mode.

Figure 8b is another schematic interaction diagram of the WIFI communication method 500 provided by the embodiment of the present application. The terminal device may access the 5G WIFI network through the above active scanning method A.

In step S511, the terminal device broadcasts a first 2.4G detection request to search for available WIFI networks around it.

As mentioned above, the first 2.4G probe request does not include specific SSID and BSSID.

In step S512, the network device receives the first 2.4G detection request.

In step S520, when the first 2.4G detection request is received and the first 5G detection request is not received, the network device starts a timer.

In step S531, the terminal device sends the first 5G detection request to the network device in a broadcast manner.

As mentioned before, the first 5G probe request did not include the specific SSID and BSSID.

In step S532, the network device receives the first 5G detection request.

In step S541, if the first 5G detection request is received within the timer period, the network device sends the first 5G detection response to the terminal device to access the terminal device to the 5G WIFI network.

It should be understood that when the terminal device sends the first 2.4G detection request and the first 5G detection request through broadcast, all network devices that can receive the first 2.4G detection request will execute step S520, and within the timer duration All network devices that receive the first 5G detection request will send the first 5G detection response.

In step S551, the terminal device sends a second 5G detection request to the network device in a unicast manner.

In this step, for example, the network list of the terminal device will display the SSIDs of WIFI supported by all network devices that sent the first 5G detection request, the user clicks the connection option of the WIFI network supported by the network device, and the terminal device responds The user's operation is to send a second 5G detection request to one of the network devices in a unicast manner.

In step S552, the network device receives the second 5G detection request.

In step S561, the network device sends a second 5G detection response to the terminal device.

In step S562, the terminal device receives the second 5G detection response.

In steps S571 and S572, after the terminal device receives the second 5G detection response, the network device and the terminal device perform an authentication process and an association process. For specific descriptions of the authentication process and the association process, please refer to the above steps S220 and S230 and the related descriptions of related technologies, and will not be described again.

In some embodiments, if the first 5G detection request is not received within the timer period, the network device sends a first 2.4G detection response to the first 2.4G detection request to the terminal device to connect the terminal device to Connect to the 2.4GWIFI network.

That is to say, if the first 5G detection request is not received within the timer's duration, it means that the terminal device will not send the first 5G detection request or may send the first 5G detection request after the end time of the timer. The network The device does not need to continue waiting for the first 5G detection request, but can respond to the detection request of the 2.4G WIFI network, that is, send the first 2.4G detection response. After the terminal device receives the first 2.4G detection response, it authenticates with the network device. process and association process to connect the terminal device to the 2.4G WIFI network.

It should be understood that in passive scanning mode and active scanning mode B, after receiving the first 2.4G detection response, the terminal device accesses the 2.4G WIFI network through the authentication process and association process.

In active scanning mode A, in an example, the network device receives the second 2.4G detection request sent by the terminal device in a unicast manner, and sends a second 2.4G detection response to the second 2.4G detection request to the terminal device, After receiving the second 2.4G detection response, the terminal device accesses the 2.4G WIFI network through the authentication process and association process.

In active scanning mode A, in another example, the network device receives the second 2.4G detection request sent by the terminal device in unicast mode and does not receive the second 5G detection request sent by the terminal device in unicast mode. In this case, the timer is started, and if the second 5G detection request sent by the terminal device through unicast is not received within the timer period, the second 2.4G detection response is sent to the terminal device, and the terminal device receives the second 2.4G detection request. After G detection response, it will connect to the 2.4G WIFI network through the authentication process and association process.

That is to say, in this example, the network device receives the 2.4G detection request sent by the terminal device in broadcast mode (the first 2.4G detection request) or the 2.4G detection request sent in unicast mode (the second 2.4G detection request). detection request), the network equipment will start the timer to wait for the 5G detection request within the timer duration. In this way, system setup can be simplified and implemented easily.

In the case where the terminal device does not send the first 5G detection request to the network device, so that the network device does not receive the first 5G detection request within the duration of the timer, there may be the following two situations. It should be understood that the following two situations are only illustrative descriptions and should not limit the embodiments of the present application.

In one example, the terminal device does not support 5G WIFI network. In this case, the terminal device will naturally not send the first 5G detection request, and the network device will not receive the first 5G detection request.

In another example, the terminal device supports the 5G WIFI network, and before the terminal device sends the first 2.4G detection request to the network device in step 511, the terminal device and the network device are connected through 2.4G WIFI network communication.

That is to say, in this example, although the terminal device supports 5G WIFI network, the terminal device has previously been connected to the network device through a 2.4G WIFI network, and the terminal device stores information about the 2.4G WIFI network used to connect to the network device. , for the convenience of connection, the system stipulates that if the passive scanning method is used, only the first 2.4G detection request will be sent after monitoring the 2.4G beacon frame of the network device. If the active scanning method is used, only the first 2.4G detection request will be sent to the network device. The first 2.4G detection request is sent to make use of the existing 2.4G WIFI network information used to connect the network device to enable the terminal device to quickly access the 2.4G WIFI network.

In the embodiment of this application, it can be understood that if the network device receives the first 5G detection request first, that is, the network device receives the first 5G detection request but does not receive the first 2.4 detection request, the network device does not start the timer, And directly send the first 5G detection response to the terminal device to connect the terminal device to the 5G WIFI network.

It should be understood that "directly" here means that after receiving the first 5G detection request, the network device no longer wastes time performing other tasks, but generates and sends the first 5G detection response as soon as possible.

It should also be understood that in passive scanning mode and active scanning mode B, after receiving the first 5G detection response, the terminal device accesses the 5G WIFI network through the authentication process and association process.

In active scanning mode A, after receiving the first 5G detection response, the terminal device only sends the second 5G detection request to the network device through unicast. Then, the network device sends the second 5G detection response to the terminal device. Subsequently, through Authentication process and association process, access to 5G WIFI network.

It should be noted that the sequence numbers of the steps in the above method embodiments do not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not constitute the implementation process of the embodiments of the present application. Any limitations.

Above, the WIFI communication method provided by the embodiment of the present application is described in detail with reference to FIGS. 1 to 8 b. Next, the WIFI communication device provided by the embodiment of the present application will be described in detail with reference to FIGS. 9 to 10 .

Figure 9 is an exemplary block diagram of a WIFI communication device 600 provided by an embodiment of the present application. The device 600 is a terminal device or a network device, and may also be a chip in the terminal device or network device.

In a possible implementation, the apparatus 600 is configured to execute various processes and steps corresponding to the network device in the above method 400. The device 600 includes: a processing unit 610 and a transceiver unit 620. The processing unit 610 is used to perform the following steps:

Obtain first signal information of M terminal devices connected to the network device through the 2.4G WIFI network within the first period, where the first signal information is used to indicate that the M terminal devices are connected to the first network device through the 2.4G WIFI network. The signal strength within the period, M is an integer greater than or equal to 1;

In the case where at least part of the signal strengths of the M terminal devices in the first period are greater than the first strength threshold, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the third transmission power. 2. Transmit power.

Optionally, the at least part of the signal strength is all signal strengths among the signal strengths of the M terminal devices within the first period.

Optionally, the processing unit 610 is specifically used to:

Determine the signal strength with the worst signal strength among the at least partial signal strengths as the target signal strength;

Determine the adjustment amplitude of the transmission power of the 2.4G WIFI network based on the strength difference between the target signal strength and a second strength threshold, where the second strength threshold is smaller than the first strength threshold;

Within the adjustment range, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the second transmission power.

Optionally, the power change value between the first transmission power and the second transmission power is smaller than the adjustment amplitude.

Optionally, the processing unit 610 is also used to:

Obtain second signal information of N terminal devices connected to the network device through the 2.4G WIFI network within the second period, where the second signal information is used to indicate that the N terminal devices are connected to the network device through the 2.4G WIFI network in the second period. Signal strength during the period;

Determine whether to continue to reduce the transmission power of the 2.4G WIFI network according to the signal strengths of the N terminal devices in the second period and the first strength threshold;

Wherein, the duration of the second period is shorter than the duration of the first period, and N is an integer greater than or equal to 1.

Optionally, the processing unit 610 is specifically used to:

During the first period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the first duration to obtain the first signal information; and,

During the second period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the second duration to obtain the second signal information;

Wherein, the second duration is shorter than the first duration.

Optionally, the processing unit 610 is specifically used to:

In the case where at least part of the signal strengths of the N terminal devices in the second period are less than the first strength threshold, the transmit power of the 2.4G WIFI network is changed from the second transmitter to the second transmitter. The power is increased to a third transmit power that is less than the first transmit power.

Optionally, the M terminal devices include devices that are stably connected to the network device and devices that are not stably connected to the network device.

Optionally, the transceiver unit 620 is used for:

Receive the 5G detection request of the 5G WIFI network and the 2.4G detection request of the 2.4GWIFI network sent by the first terminal device;

Send a 5G detection response to the 5G detection request to the first terminal device to access the first terminal device to the 5G WIFI network.

It should be understood that the processing unit 610 may be used to perform various steps performed by the network device in the method 400. For specific descriptions, reference may be made to the relevant descriptions above, which will not be described again.

In another possible implementation, the apparatus 600 is configured to execute various processes and steps corresponding to the network device in the above method 500. The device 600 includes: a processing unit 610 and a transceiver unit 620.

The processing unit 610 is configured to receive the first 2.4G detection request of the 2.4G WIFI network sent by the terminal device and not receive the first 5G detection request of the 5G WIFI network sent by the terminal device. , start the timer;

The transceiver unit 620 is also configured to, if the first 5G detection request is received within the duration of the timer, send a first 5G detection response to the first 5G detection request to the terminal device, so as to The terminal device is connected to the 5G WIFI network.

Optionally, the transceiver unit 620 is further configured to, if the first 5G detection request is not received within the duration of the timer, send a first response to the first 2.4G detection request to the terminal device. 2.4G detection response to connect the terminal device to the 2.4G WIFI network.

Optionally, the terminal device does not support the 5G WIFI network; or, the terminal device supports the 5G WIFI network, and before the terminal device sends the first 2.4G detection request to the network device, The terminal device and the network device are communicatively connected through the 2.4G WIFI network.

Optionally, the transceiver unit 620 is also configured to: when the first 5G detection request sent by the terminal device is received and the first 2.4G detection request sent by the terminal device is not received, The timer is started, and the first 5G detection response is sent to the terminal device to access the terminal device to the 5G WIFI network.

Optionally, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a unicast manner.

Optionally, the transceiver unit 620 is also configured to send the 2.4G beacon frame of the 2.4G WIFI network and the 5G beacon frame of the 5G WIFI network to the terminal device.

Optionally, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a broadcast manner; and the transceiver unit 620 is also used to:

Receive a second 5G detection request sent by the terminal device in a unicast manner; send a second 5G detection response to the second 5G detection request to the terminal device to access the terminal device to the 5G In the WIFI network.

Optionally, the duration of the timer is less than or equal to 2 seconds.

It should be understood that the processing unit 610 and the transceiver unit 620 may be used to perform various steps performed by the network device in the method 500. For specific descriptions, reference may be made to the relevant descriptions above, which will not be described again.

In another possible implementation, the apparatus 600 is configured to execute various processes and steps corresponding to the terminal device in the above method 500. The device 600 includes: a processing unit 610 and a transceiver unit 620.

The transceiver unit 620 is configured to send the first 2.4G detection request of the 2.4G WIFI network and the first 5G detection request of the 5G WIFI network to the network device;

The transceiver unit 620 is also configured to receive a first 5G detection response sent by the network device in response to the first 5G detection request;

The processing unit 610 is configured to access the 5G WIFI network.

It should be understood that the processing unit 610 and the transceiver unit 620 may be used to perform various steps performed by the terminal device in the method 500. For specific descriptions, reference may be made to the relevant descriptions above, which will not be described again.

It should be understood that the device 600 here is embodied in the form of a functional unit. The term "unit" as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (e.g., a shared processor, a dedicated processor, or a group of processors). processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.

In this embodiment of the present application, the device in FIG. 9 may also be a chip or a chip system, such as a system on chip (SoC).

Figure 10 is a schematic structural diagram of a device 700 provided by an embodiment of the present application. The device 700 is used to execute corresponding steps and/or processes in the above method embodiments.

Apparatus 700 includes a processor 710, a transceiver 720, and a memory 730. Among them, the processor 710, the transceiver 720 and the memory 730 communicate with each other through internal connection paths. The processor 710 can implement the functions of the processing unit 710 in various possible implementations of the device 700. The memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730. In other words, the processor 710 can call these stored instructions to implement the functions of the processing unit 710 in the device 700.

Optionally, the memory 730 may include read-only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 710 may be configured to execute instructions stored in the memory, and when the processor 710 executes the instructions stored in the memory, the processor 710 is configured to execute each step of the above method embodiment corresponding to the network device or terminal device. and/or process.

In a possible implementation, the apparatus 700 is configured to execute various processes and steps corresponding to the network device in the above method 400. Processor 710 is used to perform the following steps:

Obtain first signal information of M terminal devices connected to the network device through the 2.4G WIFI network within the first period, where the first signal information is used to indicate that the M terminal devices are connected to the first network device through the 2.4G WIFI network. The signal strength within the period, M is an integer greater than or equal to 1;

In the case where at least part of the signal strengths of the M terminal devices in the first period are greater than the first strength threshold, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the third transmission power. 2. Transmit power.

Optionally, the at least part of the signal strength is all signal strengths among the signal strengths of the M terminal devices within the first period.

Optionally, the processor 710 is specifically used to:

Determine the signal strength with the worst signal strength among the at least partial signal strengths as the target signal strength;

Determine the adjustment amplitude of the transmission power of the 2.4G WIFI network based on the strength difference between the target signal strength and a second strength threshold, where the second strength threshold is smaller than the first strength threshold;

Within the adjustment range, the transmission power of the 2.4G WIFI network is reduced from the first transmission power to the second transmission power.

Optionally, the power change value between the first transmission power and the second transmission power is smaller than the adjustment amplitude.

Optionally, processor 710 is also used to:

Obtain second signal information of N terminal devices connected to the network device through the 2.4G WIFI network within the second period, where the second signal information is used to indicate that the N terminal devices are connected to the network device through the 2.4G WIFI network in the second period. Signal strength during the period;

Determine whether to continue to reduce the transmission power of the 2.4G WIFI network according to the signal strengths of the N terminal devices in the second period and the first strength threshold;

Wherein, the duration of the second period is shorter than the duration of the first period, and N is an integer greater than or equal to 1.

Optionally, the processor 710 is specifically used to:

During the first period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the first duration to obtain the first signal information; and,

During the second period, periodically collect the signal strength of the terminal device connected to the network device through the 2.4GWIFI network according to the second duration to obtain the second signal information;

Wherein, the second duration is shorter than the first duration.

Optionally, the processor 710 is specifically used to:

In the case where at least part of the signal strengths of the N terminal devices in the second period are less than the first strength threshold, the transmit power of the 2.4G WIFI network is changed from the second transmitter to the second transmitter. The power is increased to a third transmit power that is less than the first transmit power.

Optionally, the M terminal devices include devices that are stably connected to the network device and devices that are not stably connected to the network device.

Optionally, transceiver 720 is used to:

Receive the 5G detection request of the 5G WIFI network and the 2.4G detection request of the 2.4GWIFI network sent by the first terminal device;

Send a 5G detection response to the 5G detection request to the first terminal device to access the first terminal device to the 5G WIFI network.

In another possible implementation, the apparatus 700 is configured to execute various processes and steps corresponding to the network device in the above method 500.

The processor 710 is configured to receive the first 2.4G detection request of the 2.4G WIFI network sent by the terminal device and not receive the first 5G detection request of the 5G WIFI network sent by the terminal device. , start the timer;

The transceiver 720 is further configured to, if the first 5G detection request is received within the duration of the timer, send a first 5G detection response to the first 5G detection request to the terminal device, so as to Connect the terminal device to the 5G WIFI network.

Optionally, the transceiver 720 is also configured to, if the first 5G detection request is not received within the duration of the timer, send a first response to the first 2.4G detection request to the terminal device. 2.4G detection response to connect the terminal device to the 2.4G WIFI network.

Optionally, the terminal device does not support the 5G WIFI network; or, the terminal device supports the 5G WIFI network, and before the terminal device sends the first 2.4G detection request to the network device, The terminal device and the network device are communicatively connected through the 2.4G WIFI network.

Optionally, the transceiver 720 is also configured to: when the first 5G detection request sent by the terminal device is received and the first 2.4G detection request sent by the terminal device is not received, The timer is started, and the first 5G detection response is sent to the terminal device to access the terminal device to the 5G WIFI network.

Optionally, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a unicast manner.

Optionally, the transceiver 720 is also configured to send the 2.4G beacon frame of the 2.4G WIFI network and the 5G beacon frame of the 5G WIFI network to the terminal device.

Optionally, the first 2.4G detection request and the first 5G detection request are sent by the terminal device in a broadcast manner; and, the transceiver 720 is also used to:

Receive a second 5G detection request sent by the terminal device in a unicast manner; send a second 5G detection response to the second 5G detection request to the terminal device to access the terminal device to the 5G In the WIFI network.

Optionally, the duration of the timer is less than or equal to 2 seconds.

It should be understood that the processing unit 610 and the transceiver unit 620 may be used to perform various steps performed by the network device in the method 500. For specific descriptions, reference may be made to the relevant descriptions above, which will not be described again.

In another possible implementation, the apparatus 700 is configured to execute various processes and steps corresponding to the terminal device in the above method 500.

The transceiver 720 is configured to send the first 2.4G detection request of the 2.4G WIFI network and the first 5G detection request of the 5G WIFI network to the network device;

The transceiver 720 is also configured to receive a first 5G detection response sent by the network device in response to the first 5G detection request;

The processor 710 is configured to access the 5G WIFI network.

It should be understood that the specific process of each device performing corresponding steps in each of the above methods has been described in detail in the above method embodiments, and will not be described again here for the sake of brevity.

It should be understood that in the embodiment of the present application, the processor of the above device can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits ( ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

During the implementation process, each step of the above method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor. The steps of the methods disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor for execution, or can be executed by a combination of hardware and software units in the processor. The software unit can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Embodiments of the present application provide a computer program product. When the computer program product is run on a terminal device, it causes the terminal device to execute the technical solutions in the above embodiments. The implementation principles and technical effects are similar to the above-mentioned method-related embodiments, and will not be described again here.

Embodiments of the present application provide a readable storage medium. The readable storage medium contains instructions. When the instructions are run on a terminal device, the terminal device executes the technical solutions of the above embodiments. The implementation principles and technical effects are similar and will not be described again here.

Embodiments of the present application provide a chip. The chip is used to execute instructions. When the chip is running, the technical solutions in the above embodiments are executed. The implementation principles and technical effects are similar and will not be described again here.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, solid state disk, SSD)) etc.

It will be understood that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments are not necessarily referred to the same embodiment throughout this specification. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

It should also be understood that in this application, "when", "if" and "if" all mean that the UE or the base station will perform corresponding processing under certain objective circumstances. It does not limit the time and does not require the UE to Or the base station must have judgment actions when implementing it, and it does not mean that there are other restrictions.

Persons of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this application are only for convenience of description and are not used to limit the scope of the embodiments of this application and also indicate the order.

Elements referred to in the singular in this application are intended to mean "one or more" and not "one and only one" unless otherwise specified. In this application, unless otherwise specified, "at least one" is intended to mean "one or more", and "plurality" is intended to mean "two or more".

The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. In the three cases B, A can be singular or plural, and B can be singular or plural.

The term "at least one of..." or "at least one of..." herein refers to all or any combination of the listed items, for example, "at least one of A, B and C", It can mean: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A, B and C exist at the same time, among which A can be singular or plural, and B can be Singular or plural, C can be singular or plural.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

The same or similar parts between the various embodiments in this application can be referred to each other. In the various embodiments of this application and the various implementation methods/implementation methods/implementation methods in each embodiment, if there are no special instructions or logical conflicts, the differences between different embodiments and the various implementation methods/implementation methods in each embodiment will be different. The terminology and/or descriptions between implementation methods/implementation methods are consistent and can be referenced to each other. Different embodiments, as well as the technical features in each implementation method/implementation method/implementation method in each embodiment are based on their inherent Logical relationships can be combined to form new embodiments, implementations, implementation methods, or implementation methods. The above-described embodiments of the present application do not limit the scope of protection of the present application.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. In short, the above descriptions are only preferred embodiments of the technical solution of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims (20)

1. A method for WIFI communication, applied to a network device, where the network device supports a 2.4G WIFI network and a 5G WIFI network, the method comprising:

acquiring first signal information of M terminal devices connected with the network device through the 2.4GWIFI network in a first period, wherein the first signal information is used for indicating signal intensity of the M terminal devices in the first period, and M is an integer greater than or equal to 1;

and under the condition that at least part of the signal intensities of the M terminal devices in the first period is larger than a first intensity threshold, reducing the transmission power of the 2.4G WIFI network from a first transmission power to a second transmission power.

2. The method of claim 1, wherein the at least some signal strengths are all of the signal strengths of the M terminal devices during the first period.

3. The method according to claim 1 or 2, wherein the reducing the transmission power of the 2.4G WIFI network from a first transmission power to a second transmission power comprises:

determining the signal intensity with the worst signal intensity in the at least partial signal intensity as a target signal intensity;

Determining an adjustment amplitude of the transmitting power of the 2.4G WIFI network according to an intensity difference value between the target signal intensity and a second intensity threshold value, wherein the second intensity threshold value is smaller than the first intensity threshold value;

and within the adjustment amplitude, reducing the transmission power of the 2.4G WIFI network from the first transmission power to the second transmission power.

4. A method according to claim 3, characterized in that the power variation value between the first and the second transmission power is smaller than the adjustment amplitude.

5. The method according to any one of claims 1 to 4, wherein after said reducing the transmission power of the 2.4G WIFI network from a first transmission power to a second transmission power, the method further comprises:

acquiring second signal information of N terminal devices connected with the network device through the 2.4G WIFI network in a second period, wherein the second signal information is used for indicating signal intensity of the N terminal devices in the second period;

determining whether to continuously reduce the transmission power of the 2.4G WIFI network according to the signal intensities of the N terminal devices in the second period and the first intensity threshold;

The duration of the second period is smaller than that of the first period, and N is an integer greater than or equal to 1.

6. The method of claim 5, wherein the obtaining first signal information of M terminal devices connected to the network device through the 2.4G WIFI network during the first period of time includes;

periodically acquiring signal intensity of terminal equipment connected with the network equipment through the 2.4G WIFI network according to a first time period in the first period to acquire the first signal information; the method comprises the steps of,

the obtaining second signal information of N terminal devices connected to the network device through the 2.4G WIFI network in the second period of time includes:

periodically acquiring the signal intensity of the terminal equipment connected with the network equipment through the 2.4G WIFI network according to a second duration in the second period to acquire the second signal information;

wherein the second duration is less than the first duration.

7. The method according to claim 5 or 6, wherein the determining whether to continue to reduce the transmission power of the 2.4G WIFI network according to the signal strengths of the N terminal devices in the second period and the first strength threshold value includes:

And under the condition that at least part of the signal intensities of the N terminal devices in the second period is smaller than the first intensity threshold, the transmission power of the 2.4G WIFI network is increased from the second transmission power to a third transmission power, and the third transmission power is smaller than the first transmission power.

8. The method according to any one of claims 1 to 7, wherein the M terminal devices comprise a device stably connected to the network device and a device non-stably connected to the network device.

9. The method according to any one of claims 1 to 8, wherein after said reducing the transmission power of the 2.4G WIFI network from a first transmission power to a second transmission power, the method further comprises:

receiving a 5G detection request of the 5G WIFI network and a 2.4G detection request of the 2.4G WIFI network, which are sent by a first terminal device;

and sending a 5G detection response aiming at the 5G detection request to the first terminal equipment so as to access the first terminal equipment into the 5G WIFI network.

10. The WIFI communication method is applied to network equipment, and the network equipment supports a 5G WIFI network and a 2.4G WIFI network, and is characterized by comprising the following steps:

Under the condition that a first 2.4G detection request of the 2.4G WIFI network sent by the terminal equipment is received and a first 5G detection request of the 5G WIFI network sent by the terminal equipment is not received, starting a timer;

and if the first 5G detection request is received within the duration of the timer, sending a first 5G detection response aiming at the first 5G detection request to the terminal equipment so as to access the terminal equipment into the 5G WIFI network.

11. The method according to claim 10, wherein the method further comprises:

and if the first 5G detection request is not received within the duration of the timer, sending a first 2.4G detection response aiming at the first 2.4G detection request to the terminal equipment so as to access the terminal equipment into the 2.4G WIFI network.

12. The method of claim 11, wherein the step of determining the position of the probe is performed,

the terminal equipment does not support the 5G WIFI network; or alternatively, the first and second heat exchangers may be,

the terminal equipment supports the 5G WIFI network, and is in communication connection with the network equipment through the 2.4G WIFI network before the terminal equipment sends the first 2.4G detection request to the network equipment.

13. The method according to any one of claims 10 to 12, further comprising:

and under the condition that the first 5G detection request sent by the terminal equipment is received and the first 2.4G detection request sent by the terminal equipment is not received, the timer is not started, and the first 5G detection response is sent to the terminal equipment so as to access the terminal equipment into the 5G WIFI network.

14. The method according to any of claims 10 to 13, wherein the first 2.4G probe request and the first 5G probe request are sent by the terminal device in unicast.

15. The method of claim 14, wherein prior to the starting the timer, the method further comprises:

and sending the 2.4G beacon frame of the 2.4G WIFI network and the 5G beacon frame of the 5G WIFI network to the terminal equipment.

16. The method according to any of claims 10 to 13, wherein the first 2.4G probe request and the first 5G probe request are sent by the terminal device by broadcast; and after said sending a first 5G probe response to said first 5G probe request to said terminal device, the method further comprises:

Receiving a second 5G detection request sent by the terminal equipment in a unicast mode;

and sending a second 5G detection response aiming at the second 5G detection request to the terminal equipment so as to access the terminal equipment into the 5G WIFI network.

17. The method according to any one of claims 10 to 16, wherein the timer has a duration of less than or equal to 2 seconds.

18. A network device, comprising:

a memory for storing computer instructions;

a processor for invoking computer instructions stored in the memory to perform the method of any of claims 1 to 9 or any of claims 10 to 17.

19. A computer readable storage medium storing computer instructions for implementing the method of any one of claims 1 to 9, or of claims 10 to 17.

20. A chip, the chip comprising:

a memory: for storing instructions;

a processor for invoking and executing the instructions from the memory to cause a communication device on which the chip system is mounted to perform the method of any of claims 1 to 9 or claims 10 to 17.