CN113708858A

CN113708858A - Signal processing method and wireless network access equipment

Info

Publication number: CN113708858A
Application number: CN202111002751.3A
Authority: CN
Inventors: 章霞; 姚瑞
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-26

Abstract

The embodiment of the application provides a signal processing method and wireless network access equipment, wherein the signal processing method is applied to the wireless network access equipment and comprises the following steps: the wireless network access equipment detects whether a first channel used by an accessed wireless local area network and a current working frequency band of a cellular network accessed by the wireless network access equipment have first adjacent channel interference or not; the first adjacent channel interference is interference generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network; if the first adjacent channel interference exists and the channel switching condition is met, the wireless network access equipment switches the first channel used currently to a second channel of a wireless local area network, and the first adjacent channel interference received by the second channel is smaller than the first channel. Through the switching of the first channel and the second channel, the first channel is isolated from the current working frequency band, and further mutual interference between the wireless local area network and the cellular network is avoided.

Description

Signal processing method and wireless network access equipment

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the technical field of wireless communication, in particular to a signal processing method and wireless network access equipment.

[ background of the invention ]

Cellular networks (Cellular networks), also known as Mobile networks (Mobile networks). A cellular network is a mobile communications hardware architecture. Common types of cellular networks are: a Global System for Mobile Communications (GSM) network, a 3G network, a 4G network, a 5G network, and the like.

A Wireless Local Area Network (WLAN) refers to a Local Area Network that is not connected using any wires or transmission cables. Wireless local area networks use wireless electromagnetic waves as the medium for data transmission. A common standard for wireless local area networks is the IEEE802.11 standard.

In a practical user application scenario, a user may use a terminal device to access the internet through a cellular network or a wireless local area network, but the user experience is most affected by the performance of the wireless local area network. However, the cellular network and the wlan both use radio waves for communication, and need to compete for using an air interface (air interface) environment, which causes the working frequency band of the cellular network and the working channel of the wlan to be adjacent to each other, and further causes the phenomenon of mutual interference between signals of the cellular network and the wlan. The signals of the cellular network and the wireless local area network interfere with each other, which reduces the user experience of surfing the internet by using the wireless local area network and affects the communication quality of the cellular network.

[ summary of the invention ]

The embodiment of the application provides a signal processing method and wireless network access equipment, so that when the current working frequency band of a cellular network and the frequency band of a channel available to a wireless local area network have mutual interference due to the adjacent existence, adjacent channel interference caused by cellular network signals can be avoided by switching the channel available to the wireless local area network.

In a first aspect, the present application provides a signal processing method, which may be applied to a wireless network access device, where the wireless network access device is provided with an electronic module accessing a wireless local area network and an electronic module accessing a cellular network, and the method includes:

the wireless network access equipment detects whether a first channel used by an accessed wireless local area network and a current working frequency band of a cellular network accessed by the wireless network access equipment have first adjacent channel interference or not; the first adjacent channel interference is interference generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network; if the first adjacent channel interference exists and the channel switching condition is met, the wireless network access equipment switches the first channel used currently to a second channel of a wireless local area network, and the first adjacent channel interference received by the second channel is smaller than the first channel.

In the signal processing method, if it is detected that the wireless network access device is simultaneously accessed to the wireless local area network and the cellular network, whether a first channel used after the wireless network access device is accessed to the wireless local area network is adjacent to a current working frequency band accessed to the cellular network is detected, if the frequency band of the first channel is adjacent to the current working frequency band, it is determined that first adjacent channel interference exists in the first channel used by the currently accessed wireless local area network, and by selecting a second channel, of which the first adjacent channel interference is smaller than the first channel, from multiple channels usable by the wireless local area network, mutual interference between the cellular network and the wireless local area network is reduced, communication performance of the wireless network access device is improved, and internet access experience of a user using the wireless network access device is further improved.

In one possible implementation manner, the detecting, by the wireless network access device, whether a first adjacent channel used after the accessed wireless local area network and a current operating frequency band of a cellular network to which the wireless network access device is accessed have first adjacent channel interference includes:

the wireless network access equipment presets a channel interference frequency band, wherein the channel interference frequency band is a frequency band or a frequency band combination which is adjacent to a usable working frequency band in a cellular network in the frequency bands of usable channels of a wireless local area network; acquiring the frequency band of the first channel, and judging whether the frequency band of the first channel is in the channel interference frequency band; and if the frequency band of the first channel is in the channel interference frequency band, acquiring the current working frequency band, and judging whether the frequency band of the first channel and the current working frequency band have the first adjacent channel interference.

acquiring the frequency band of the first channel and the current working frequency band; and judging whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band.

In one possible implementation manner, the channel switching condition includes:

and the time for using the first channel after the wireless network access equipment accesses the wireless local area network is greater than or equal to a first time threshold.

In one possible implementation manner, the switching, by the wireless network access device, the first channel currently used to the second channel of the wireless local area network includes:

acquiring a switchable channel set formed by a plurality of channels which can be used by a wireless local area network accessed by the wireless network access equipment; evaluating each channel in the switchable channel set to obtain an evaluation parameter of each channel in the switchable channel set, wherein the evaluation parameter represents the busy degree of the occupied channel and the adjacent channel interference degree; wherein the adjacent channel interference comprises the first adjacent channel interference and a second adjacent channel interference, and the second adjacent channel interference is interference generated by an adjacent channel of each channel in the switchable channel set; selecting the second channel of the first channel switch within the switchable channel set according to the evaluated parameter of each channel within the switchable channel set.

In one possible implementation manner, the obtaining the evaluation parameter of each channel in the switchable channel set includes:

measuring each channel in the switchable channel set, and respectively acquiring a first channel busy parameter of each channel, wherein the first channel busy parameter represents the busy degree of the occupied channel; calibrating the first channel busy parameter of each channel in the switchable channel set according to a mode of adjusting the first channel busy parameter of the channel adjacent to the current working frequency band in the switchable channel set to be the maximum value or the minimum value, and obtaining a second channel busy parameter of each channel in the switchable channel set; assigning a weight variable to each channel in the switchable channel set and to adjacent channels of each channel in the switchable channel set; and acquiring the evaluation parameter of each channel in the switchable channel set according to a mode of weighted average of the second channel busy parameter of each channel in the switchable channel set and the adjacent channel of each channel in the switchable channel set by a weight variable.

measuring each channel in the switchable channel set, and respectively acquiring a first channel busy parameter of each channel, wherein the first channel busy parameter represents the busy degree of the occupied channel; calibrating the first channel busy parameter of each channel in the switchable channel set according to a mode of adjusting the first channel busy parameter of the channel adjacent to the current working frequency band in the switchable channel set to be the maximum value or the minimum value, and obtaining a second channel busy parameter of each channel in the switchable channel set; assigning a weight variable to each channel in the switchable channel set and to adjacent channels of each channel in the switchable channel set; the evaluation parameter time (idx) of each channel in the switchable channel set is:

wherein idx represents the number of the channel, busy _ time (idx) represents the busy parameter of the second channel, a_mRepresenting the weight variable; wherein m is an integer.

In a second aspect, an embodiment of the present application provides a wireless network access device, including:

the communication module is used for accessing a wireless local area network; the acquisition module is used for acquiring the current working frequency band of the cellular network; the detection module is used for detecting whether a first channel used by the accessed wireless local area network and the current working frequency band have first adjacent channel interference or not; the first adjacent channel interference is interference generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network; and the execution module is used for switching the currently used first channel into a second channel of the wireless local area network under the condition that the first adjacent channel interference exists and the channel switching condition is met, wherein the first adjacent channel interference received by the second channel is smaller than the first channel.

In one possible implementation manner, the wireless network access device sets a channel interference frequency band in advance, where the channel interference frequency band is a frequency band or a frequency band combination adjacent to an available working frequency band in a cellular network in a frequency band of a channel available to a wireless local area network, and the detection module includes:

a first obtaining submodule, configured to obtain a frequency band of the first channel; the first judgment submodule is used for judging whether the frequency band of the first channel is in the channel interference frequency band or not and sending a judgment result to the first acquisition submodule; the first obtaining sub-module is further configured to obtain the current working frequency band if the frequency band of the first channel is within the channel interference frequency band; the first determining submodule is further configured to determine whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band, and send a determination result to the executing module.

In one possible implementation manner, the detection module includes:

the second obtaining submodule is used for obtaining the frequency band of the first channel and the current working frequency band; and the second judgment submodule is used for judging whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band or not and sending a judgment result to the execution module.

In one possible implementation manner, the execution module includes:

a third obtaining submodule, configured to obtain a switchable channel set formed by a plurality of channels that are usable by a wireless local area network accessed by the wireless network access device; the switching execution submodule is used for evaluating each channel in the switchable channel set to obtain an evaluation parameter of each channel in the switchable channel set, and the evaluation parameter represents the occupied busy degree and the adjacent channel interference degree of the channel; wherein the adjacent channel interference comprises the first adjacent channel interference and a second adjacent channel interference, and the second adjacent channel interference is interference generated by an adjacent channel of each channel in the switchable channel set; the switching execution submodule is further configured to select the second channel of the first channel switching in the switchable channel set according to the evaluation parameter of each channel in the switchable channel set.

In one possible implementation manner, the handover execution sub-module is specifically configured to:

In a third aspect, an embodiment of the present application provides a component, disposed in a wireless network access device, including:

In a fourth aspect, an embodiment of the present application provides an apparatus, including:

at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor calling the program instructions to be able to perform the method provided by the first aspect.

In a fifth aspect, embodiments of the present application provide a non-transitory (non-volatile) computer-readable storage medium storing computer instructions that cause the computer to perform the method provided in the first aspect.

It should be understood that the second to fifth aspects of the embodiment of the present application are consistent with the technical solution of the first aspect of the embodiment of the present application, and beneficial effects obtained by the aspects and the corresponding possible implementation are similar, and are not described again.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a scenario of an embodiment of the present application;

fig. 2 is a flowchart of a signal processing method according to an embodiment of the present application;

fig. 3 is a flowchart of a signal processing method according to another embodiment of the present application;

fig. 4 is a flowchart of a signal processing method according to another embodiment of the present application;

fig. 5 is a flowchart of a signal processing method according to another embodiment of the present application;

fig. 6 is a flowchart of a signal processing method according to another embodiment of the present application;

fig. 7 is a flowchart of a signal processing method according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of a wireless network access device according to an embodiment of the present disclosure;

FIG. 9 is a block diagram illustrating components provided in accordance with one embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of an apparatus provided in an embodiment of the present disclosure.

[ detailed description ] embodiments

For better understanding of the technical solutions in the present specification, the following detailed description of the embodiments of the present application is provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Referring to fig. 1, terms related to embodiments of the present application will be explained first.

Cellular network 101: which may be a mobile communications hardware architecture, typically includes electronic terminal equipment 102, base stations 103 and network subsystems.

The electronic terminal device 102: the network terminal device used by the corresponding user includes a mobile phone, a tablet computer, an intelligent wearable device, an edge computing terminal, a data acquisition device, a Customer Premise Equipment (CPE), a router, a repeater, a cellular industrial control device, and an internet of things device. The Internet of things equipment can be an on-vehicle network terminal, an intelligent household appliance, an intelligent electric meter, an intelligent water meter, an intelligent natural gas meter, intelligent monitoring and the like. The data acquisition device may be a sensor. It is understood that the terminal 102 may transmit and/or receive a wireless electromagnetic wave signal through a wireless channel and then modulate and/or demodulate the wireless electromagnetic wave signal.

Base station 103: including mobile base stations, radios, etc. It is to be understood that the base station 103 receives signals transmitted by the terminal 102 and/or the base station transmits signals to the terminal.

The network subsystem: including a Core Network (Core Network), such as a 4G Core Network (EPC) of a fourth generation mobile communication technology, and a 5G Core Network (5G Core,5GC) of a fifth generation mobile communication technology. It will be appreciated that the core network receives data transmitted by the base station 103 via the transport network and/or the core network transmits data to the base station 103 via the transport network.

4G: fourth Generation Mobile Communication Technology (The 4th Generation Mobile Communication Technology). Long Term Evolution (LTE) is a new generation broadband mobile communication standard project with high data rate, low delay and packet domain-oriented optimization formulated by 3 GPP. It is understood that in the embodiments of the present application, LTE, 4G or 4G LTE may refer to a 4G cellular network.

5G: the fifth Generation Mobile Communication Technology (The 5th Generation Mobile Communication Technology), which may also be referred to as New Radio (NR). It is understood that in the embodiments of the present application, NR, 5G or 5G NR may refer to a 5G cellular network.

Air interface: short for Air Interface (Air Interface). The above-mentioned cellular network 101 is composed of a terminal 102, a base station 103, and a core network. The interface between the terminal 102 and the base station 103 may be referred to as an air interface since it is propagated through electromagnetic waves in the air. The air interface is a radio transmission specification between the base station and the terminal. The air interface may define the frequency of use, bandwidth, access timing, coding method, handover, etc. of each radio channel.

Working frequency band: the working frequency range referred to in the embodiments of the present application refers to the frequency range of wireless electromagnetic waves. Taking the 4G cellular network as an example for explanation, the operating frequency Band7 of the 4G LTE cellular network, that is, the Band7 of the 4G LTE cellular network, is: the uplink is 2500-2570 MHz, and the downlink is 2620-2690 MHz. The uplink indicates the frequency range of radio waves transmitted by the terminal and received by the base station. The downlink represents the frequency range of radio waves transmitted by the base station and received by the terminal.

Modem (Modem): the modem may be a module, chip or device that enables cellular communication of the terminal 102 with the base station 103. The baseband module or baseband chip includes a modem. The modems referred to in the embodiments of the present application may refer to circuits, units, modules, or chips that implement communications over cellular network 101. In the embodiment of the present application, the modem may be a modem processor

Wireless local area network 104: refers to a network that uses wireless electromagnetic waves as a medium for data transmission and conforms to the IEEE802.11 standard. For example, Wi-Fi devices or Bluetooth devices can all form the wireless local area network 104. Signals within the wlan 104 may operate in the 2.4G band or the 5G band. The frequency range of the 2.4G band may be: 2400-2488 MHz. The frequency range of the 5G band may be: 4910-5835 MHz.

It should be noted that the wireless lan 104 includes a wireless access point 105 and a station 106.

The wireless access point 105: an Access Point (AP) is an Access Point of the wlan 104, and may be referred to as a hotspot or a wireless Access Point. The wireless access point 105 provides at least one station 106 with access to the wireless local area network 104. Wireless access point 105 may be an access point for station 106 to enter a wired network and/or a wireless network. The wireless access point 105 may connect together various stations 106 that access the wireless lan 104 and then access the wireless lan 104 into a wired network (such as ethernet) or a wireless network. It should be noted that the wireless network may be a cellular network 101 or a wireless local area network 104. The wireless network may also be other networks that are capable of communicating with a server using electromagnetic radio wave signals.

Alternatively, wireless access point 105 may be a device that deploys at least Wi-Fi devices or modules for stations 106 to access wireless local area network 104. For example, a wireless router (e.g., a wireless gateway, a wireless bridge, etc.), a wireless repeater, etc.

Optionally, the wireless Access point 105 may also be a soft ap (soft Access point). The soft AP can implement the function of a wireless access point on a device with a wireless network card through the wireless network card. For example, a wireless network card is deployed on a notebook or Personal Computer (PC) for itself or other stations 106 to access the wlan 104.

Alternatively, the wireless access point 105 may also be the aforementioned terminal 102 that is capable of accessing the wireless lan 104. In the terminal 102, for example, a mobile phone, a tablet computer, an intelligent wearable device, a data acquisition device, a client front-end device, a vehicle-mounted network terminal, etc., a Wi-Fi device or module is deployed, which itself may become a wireless access point 105, and further may be used for the station 106 to access the wireless lan 104.

Site 106: a Station (STA) may be a device capable of connecting with the wireless access point 105 to access the wireless local area network 104. Station 106 may be an apparatus that deploys at least Wi-Fi devices or modules. Note that some of the wireless access points 105 may be stations. Such as wireless routers, wireless repeaters, cell phones, tablets, notebooks, client front-end devices, in-vehicle network terminals, etc. The wireless router may be a wireless gateway, a wireless bridge, etc.

Wi-Fi: Wi-Fi is a trademark of a alliance's manufacturer, but also serves as an authentication for products. In the embodiment of the application, Wi-Fi is a wireless local area network device conforming to the IEEE802.11 standard. The user may access the wireless local area network 104 through a Wi-Fi module, a Wi-Fi chip, or a Wi-Fi device. It should be noted that the wireless access point 105 may provide the station 106 with a function of accessing the wireless lan 104 through a Wi-Fi module or a Wi-Fi chip or a Wi-Fi device. The station 106 may access the wireless local area network 104 through a Wi-Fi module or a Wi-Fi chip or a Wi-Fi device. The wireless routers (such as wireless gateways, wireless bridges, etc.), wireless repeaters, terminals 102, etc. referred to in the embodiments of the present application may each include a Wi-Fi module or Wi-Fi chip or Wi-Fi device.

The wireless network access device 107: wireless network access device 107 may be a device capable of accessing wireless local area network 104 and cellular network 101, respectively. Wireless network access device 107 may be deployed with a Wi-Fi module and a modem, respectively, to enable access to wireless local area network 104 and cellular network 101, respectively. Such as a cell phone, tablet, client front-end device, etc.

It should be noted that the wireless network access device 107 according to the embodiment of the present application may be the wireless access point 105 and/or the station 106. The wireless network access device 107 is able to switch channels on which the wireless lan 104 operates.

Channel (Channel): the channel involved in the embodiment of the present application is an operating channel of the terminal in the wireless lan 104. The channel includes a center frequency and a bandwidth. For example, referring to table 1, the 2.4G band includes 14 channels. Each channel has a bandwidth of 22MHz, with an effective channel bandwidth of 20MHz, and the remaining 2MHz is used to isolate adjacent channels. The available bandwidth of the 2.4G frequency band is 88MHz, and the center frequency of each channel is separated by 5 MHz.

TABLE 12.4G band channel partitioning

Channel numbering	Center frequency (MHz)	Frequency range (MHz)
			1	2412	2401～2423
2	2417	2406～2428
			3	2422	2411～2433
4	2427	2416～2438
			5	2432	2421～2443
6	2437	2426～2448
			7	2442	2431～2453
8	2447	2436～2458
			9	2452	2441～2463
10	2457	2446～2468
			11	2462	2451～2473
12	2467	2456～2478
			13	2472	2461～2483
14	2477	2466～2488

In addition, the channels of the WLAN 104 operating in the 5G band include channels 7-196. The bandwidth of the channels of different channel numbers is different. The bandwidth of the 5G band channel may be 20MHz, 40MHz, 80MHz or 160 MHz. The center frequencies and frequency ranges of the partial channels can be seen in table 2.

TABLE 25G band channel partitioning

And (3) adjacent channel interference: the signals of adjacent or nearby frequency bands interfere with each other. For example, the filtering performance of the receiver is not ideal, causing some frequency components of the signal to fall within the transmission band of adjacent channels, causing interference. Referring to table 1, it can be understood that the operating band7 of the 4G LTE cellular network is adjacent to the channels 12 to 14 of the wlan 104, and therefore the operating band7 of the 4G LTE cellular network and the channels 12 to 14 of the wlan 104 interfere with each other. In addition, the operating Band40 of the 4G LTE cellular network, i.e. the Band40 of the 4G LTE, has a frequency range of 2300 to 2400MHz, so the operating Band40 of the 4G LTE cellular network and the channels 1 to 5 of the wlan 104 will interfere with each other.

In addition, the frequency range of the working frequency Band79 of the 5G NR cellular network is 4800-5000 MHz. Referring to fig. 2, it can be appreciated that the operating Band79 of the 5G NR cellular network affects signals in the 5G Band in the wlan 104.

Occupied busy degree of channel: the busy level of the occupied channel may be the occupancy of multiple channels of the wlan 104 by other devices entering the wlan 104. Due to the limited bandwidth of the 2.4G band and the dense deployment of wlan access devices in the 2.4G band, if too many wlan access devices are deployed in the same channel, the interference from other Wi-Fi signals may seriously affect the communication performance of the wlan 104. It should be noted that, with the open use of the 5G frequency band, more and more access devices support the use of the 5G frequency band, and if too many wireless local area network access devices deployed in the 5G frequency band are provided, channels in the 5G frequency band are occupied, thereby generating interference.

And a Coex interface: coexistence, refers to a coexistence interface for communicating with a modem to further tune the operating frequency band of a cellular network. Alternatively, the Coex interface may be disposed in a functional module of the wireless network access device 107 accessing the wireless lan, for example, the Coex interface may be disposed in a Wi-Fi module, or the Coex interface may be disposed in a module or a chip integrating one or more combinations of Wi-Fi, bluetooth, FM technology, and GPS technology.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application. As shown in fig. 1, the embodiment of the present application may be applied in an application scenario where the wireless network access device 107 accesses the cellular network 101 and the wireless lan 104 simultaneously. The embodiment of the present application relates to a wireless network access device 107 including at least a functional module for accessing a wireless lan 104 and a functional module for accessing a cellular network 101. The functional modules accessing the wireless local area network 104 may be Wi-Fi modules or modules that include at least Wi-Fi functionality. The module including at least Wi-Fi functionality may be a module that integrates Wi-Fi, bluetooth, and FM functionality simultaneously. The functional module accessing the cellular network 101 may be a modem. Alternatively, the functional module accessing the cellular network 101 may be a baseband chip or a baseband module comprising a modem.

Alternatively, the wireless network access device 107 can connect to the base station 103 via a modem to access the cellular network 101. The wireless network access device 107 may also access the wireless local area network 104 through a Wi-Fi module. The wireless network access device 107 may also be a cell phone, a client front-end device, a tablet computer, etc. in the terminal 102.

As shown in fig. 1, wireless network access device 107 may act as a wireless access point 105 capable of providing access functionality to station 106. The station 106 may be a terminal 102 used by a user. The wireless network access device 107 may also provide other wireless access points 105 with the ability to access the wireless local area network 104.

The user uses the wireless network access device 107 to access the cellular network 101 and the wireless local area network 104, respectively. Because the working frequency band of the cellular network 101 is adjacent to the working frequency band of the wireless lan 104, when the signals of the cellular network 101 and the wireless lan 104 are transmitted and received in the same wireless network access device 107, due to the non-linear devices such as a power amplifier and a mixer, part of the frequency components of the signals leak into the adjacent channels, and then serious adjacent frequency interference is generated, which seriously affects the communication and network experience of the user. In the related art, it is common to increase the isolation between antennas or add a filter, but as the size of the terminal device is reduced, the space for increasing the isolation between antennas is limited. Adding filters requires more stringent criteria, resulting in significant cost increases.

In view of the above problems, embodiments of the present application provide a signal processing method, which can avoid the interference of the cellular network 101 signal by switching the channel used by the wlan 104 when the cellular network 101 signal and the wlan 104 signal interfere with each other.

Fig. 2 is a flowchart of a signal processing method according to an embodiment of the present application, and as shown in fig. 2, the signal processing method may be applied to the wireless network access device 107. The signal processing method may include:

in step 201, the wireless network access device 107 detects whether a first channel used by the accessed wireless local area network and a current working frequency band of a cellular network accessed by the wireless network access device 107 have first adjacent channel interference, if not, step 202 is entered, and if so, step 203 is entered.

Optionally, the first adjacent channel interference is interference generated when a frequency band of a channel used by the wireless local area network is adjacent to an operating frequency band of the cellular network. For example, the frequency Band of the 2.4G channels 1-5 used by the wlan is adjacent to the Band40 of the 4G LTE cellular network, so a first adjacent channel interference is generated between the 2.4G channels 1-5 and the Band40 of the 4G LTE cellular network. For another example, the Band7 of the 4G LTE cellular network is adjacent to the channels 12-14 of the WLAN, so that the first adjacent channel interference is generated between the Band7 of the 4G LTE cellular network and the channels 12-14 of the 2.4G Band. For another example, the Band79 of the 5G NR cellular network is adjacent to the channels 36-165 of the WLAN 5G Band, so that first adjacent channel interference is generated between the Band79 of the 5G NR cellular network and the channels 36-165 of the WLAN 5G Band.

Step 202, if there is no first adjacent channel interference, the first channel used by the wireless lan accessed by the wireless network access device 107 is not switched.

Alternatively, the switching of the first channel used by the wireless local area network is not performed, and the current operation state of the wireless local area network and/or the cellular network can be maintained. Optionally, the first channel used by the wlan is not switched, and if the detection condition is met, whether the first channel used by the wlan interferes with the operating frequency band of the cellular network is detected again.

Alternatively, the detection condition may be that the wireless network access device 107 re-accesses the wireless local area network. Alternatively, the detection condition may be that the wireless network access device 107 switches the first channel.

In step 203, if the first adjacent channel interference exists and the channel switching condition is satisfied, the wireless network access device 107 switches the currently used first channel to a second channel of the wireless local area network.

Optionally, the second channel is a channel, which is different from the frequency band of the first channel, in a plurality of channels that can be used after the wireless network access device 107 accesses the wireless local area network. Optionally, the second channel is subject to less first adjacent channel interference than the first channel.

To avoid frequent channel switching, optionally, the channel switching condition includes:

the time for using the first channel after the wireless network access device 107 accesses the wireless local area network is greater than or equal to the first time threshold.

Alternatively, the first time threshold may be set manually. The first time threshold may also be modified based on the usage of the wireless network access device 107. The first time threshold may be set according to hardware parameters associated with the wireless network access device 107. The first time threshold may be set according to the network performance of the cellular network accessed by the wireless network access device 107 or the wireless lan accessed.

In the channel switching of the wireless lan accessed by the wireless network access device 107, if the channel switching is frequently performed, a stability problem may be caused, for example, in the process of performing the channel switching by the wireless network access device 107, the wireless access function of the wireless network access device 107 needs to be closed first, and the wireless access function of the wireless network access device 107 needs to be opened again after the channel switching is successful, so that the network may be interrupted, and the user experience may be poor due to the interruption of the network when the user performs real-time applications such as voice, live broadcast, video chat. The embodiment of the application is used for avoiding the stability problem caused by frequent channel switching of the wireless network access equipment 107 by setting the channel switching condition, and ensuring the stability of network connection, thereby improving the network experience of users.

In the signal processing method, a frequency band in which a first channel used after the wireless network access device 107 is accessed to the wireless local area network may have first adjacent channel interference with a current working frequency band of a cellular network to which the wireless network access device 107 is accessed, and according to the obtained working frequency band of the cellular network and the frequency band in which the first channel is located, whether the first adjacent channel interference exists when the wireless network access device 107 is accessed to the wireless local area network and the cellular network can be judged. If the first adjacent channel interference exists and the channel switching condition is met, the wireless network access equipment 107 actively triggers the switching of the first channel and the second channel, so that the channel used by the wireless network access equipment 107 accessing the wireless local area network is isolated from the current working frequency band used by the wireless network access equipment 107 accessing the cellular network, the mutual interference between the wireless local area network and the cellular network is avoided, the experience of the user using the wireless local area network 104 to surf the internet is improved, and the quality of the user using the call and surfing the internet of the cellular network 101 is improved.

Fig. 3 is a flowchart of a signal processing method according to another embodiment of the present application, and as shown in fig. 3, in the embodiment shown in fig. 2 of the present application, step 201 may include:

step 301, the wireless network access device 107 sets a channel interference frequency band in advance.

Optionally, the channel interference frequency band is a frequency band or a frequency band combination adjacent to an available operating frequency band in the cellular network, among frequency bands of channels available to the wireless local area network. Alternatively, the channel interference frequency band may refer to a frequency band or a frequency band combination in which a channel usable by the wireless local area network is located, and the frequency band or the frequency band combination partially overlaps with an operating frequency band usable by the cellular network 101. Alternatively, the channel interference frequency band may refer to a frequency band in which a channel available to the wireless local area network is located, and the frequency band is adjacent to and partially overlapped with an operating frequency band available to the cellular network. For example, the channel interference frequency band may be one or a combination of frequency bands of channels 1 to 5 in the 2.4G frequency band, frequency bands of channels 12 to 14 in the 2.4G frequency band, and frequency bands of channels 36 to 165 in the 5G frequency band.

Step 302, obtaining a frequency band of the first channel, and determining whether the frequency band of the first channel is within a channel interference frequency band, if so, performing step 303, and if not, performing step 304.

The first channel frequency band is a frequency band of a first channel used by a wireless local area network accessed by the wireless access device.

Step 303, if the frequency band of the first channel is in the channel interference frequency band, acquiring the current working frequency band, and determining whether the frequency band of the first channel has first adjacent channel interference with the current working frequency band.

The current working frequency band is the current working frequency band of the cellular network accessed by the wireless network access equipment.

Optionally, the obtaining of the current operating frequency band may be obtaining the current operating frequency band through a Coex interface. The current working frequency band may be obtained through a Serial communication Interface, a Universal Serial Bus (USB) Interface, a UART Interface (Universal Asynchronous Receiver/Transmitter), a Serial Peripheral Interface (SPI), or the like.

Optionally, if the current operating frequency Band is Band7 of the 4G LTE cellular network, and the first channel is within the frequency Band of channels 12 to 14 in the 2.4G frequency Band, then there is first adjacent channel interference. If the current working frequency Band is Band40 of the 4G LTE cellular network and the first channel is in the frequency Band of channels 1-5 under the 2.4G frequency Band, first adjacent channel interference exists. If the current operating frequency Band is Band79 of the 5G NR cellular network and the first channel is within the 5G frequency Band, then there is first adjacent channel interference.

Step 304, if the frequency band of the first channel is not within the channel interference frequency band, the wireless network access device 107 does not acquire the current working frequency band.

Optionally, if the frequency band of the first channel is not within the channel interference frequency band, the first adjacent channel interference does not exist between the wireless local area network accessed by the wireless network access device 107 and the cellular network accessed by the wireless network access device 107, so that the current working frequency band does not need to be acquired.

According to the embodiment of the application, through the preset channel interference frequency band, whether a first channel used by the wireless network access device 107 for accessing the wireless local area network is in the channel interference frequency band or not can be judged in advance, whether the first channel is likely to have first adjacent channel interference with the working frequency band of the cellular network or not can be judged in advance, if the first channel is not in the channel interference frequency band, the current working frequency band of the cellular network accessed by the wireless network access device 107 is not acquired, and the related operation of detecting whether the first channel and the current working frequency band have the first adjacent channel interference or not is not executed, so that the subsequent invalid operation is avoided, and the resource consumption of the wireless network access device 107 is reduced.

It is to be understood that, in one possible implementation, step 201 may directly acquire the first channel and the current operating frequency band without setting a channel interference frequency band in advance. For example, step 201 may include:

acquiring a frequency band of a first channel and the current working frequency band;

and judging whether the frequency band of the first channel has first adjacent frequency interference with the current working frequency band.

Fig. 4 is a flowchart of a signal processing method according to another embodiment of the present application, as shown in fig. 4, in the embodiment shown in fig. 3 of the present application, the acquiring a current operating frequency band in step 303 may include:

in step 401, the wireless network access device 107 determines whether the time for obtaining the current operating frequency band last time is greater than a second time threshold, if so, step 402 is executed, and if not, step 403 is executed.

Optionally, the wireless network access device 107 presets the second time threshold. The second time threshold is used for periodically acquiring the current working frequency band.

Step 402, if the time for the wireless network access device 107 to obtain the current working frequency band last time is greater than or equal to the second time threshold, obtaining the current working frequency band.

In step 403, if the time for the wireless network access device 107 to obtain the current working frequency band last time is less than the second time threshold, the current working frequency band is not obtained.

Optionally, step 403 may include:

the wireless network access device 107 waits until the time for obtaining the current working frequency band last time is greater than or equal to the second time threshold, and then obtains the current working frequency band.

Alternatively, the second time threshold may be 50ms, 100ms, etc. The second time threshold may be set according to a network environment of the cellular network.

Alternatively, the second Time threshold may be set by a Target Beacon Transmission Time (TBTT). In the wireless local area network 104, the wireless access point 105 periodically broadcasts a beacon frame, where the beacon period defines the time of the target beacon transmission time. The target beacon transmission time is the time of arrival of the next beacon frame.

Alternatively, the second time threshold may be an integer number of target beacon transmission times, e.g., N target beacon transmission times. N is a positive integer. The wireless network access device 107 may actively report the number of target beacon transmission times. When the number of target beacon transmission times can be divided by N, then the wireless network access device 107 can obtain the current operating frequency band.

According to the embodiment of the application, the problem of self-adaptive switching of the current working frequency band of the cellular network can be solved by periodically acquiring the current working frequency band. Since the 4G LTE cellular network and the 5G NR cellular network may be adaptively switched, that is, when there is no signal coverage of the 5G NR cellular network, the wireless network access device 107 adaptively switches to the 4G LTE cellular network, the current operating frequency band acquired by the wireless network access device 107 at this time may change at a certain time later, and the second channel after switching may generate first adjacent channel interference with the current operating frequency band at the certain time later. According to the method and the device, the current working frequency band of the cellular network can be acquired sequentially by periodically acquiring the current working frequency band, whether the channel used after the wireless network access equipment 107 is accessed into the wireless network generates first adjacent channel interference with the current working frequency band is judged circularly, then the first adjacent channel interference condition possibly existing in the switched channel is found in time, and the internet experience of a user is improved.

Fig. 5 is a flowchart of a signal processing method according to another embodiment of the present application, as shown in fig. 5, in the embodiment shown in fig. 2 of the present application, the method includes:

in step 501, if there is the first adjacent channel interference and the channel switching condition is not satisfied, the wireless network access device 107 obtains the current working frequency band.

Optionally, steps 401-403 as shown in FIG. 4 may be performed after step 501.

Optionally, after step 402 is executed, the wireless network access device 107 may execute the step 303 of determining whether the frequency band of the first channel has the first adjacent channel interference with the current operating frequency band.

In the embodiment of the present application, under the condition that the channel switching condition is not satisfied, on the premise that it is ensured that the access network of the wireless network access device 107 is stable, the current operating frequency band is periodically and cyclically acquired, and whether the first channel and the current operating frequency band have the first adjacent channel interference is detected.

Fig. 6 is a flowchart of a signal processing method according to another embodiment of the present application, and as shown in fig. 6, in the embodiment shown in fig. 2 of the present application, the switching, by the wireless network access device 107 in step 203, the first channel currently used to the second channel of the wireless local area network includes:

step 601, acquiring a switchable channel set formed by a plurality of channels available for the wireless lan accessed by the wireless network access device 107.

Alternatively, the wireless network access device 107 may include all channels usable by the wireless local area network accessed by the wireless network access device 107 into the switchable channel set. For example, if the wireless network access device 107 accesses a wireless local area network in a 2.4G frequency band, the channels in the switchable channel set are channels 1 to 13 in the 2.4G frequency band. For another example, if the wireless network access device 107 accesses a wireless local area network in a 5G frequency band, the channels in the switchable channel set may be channels 36-165 in the 5G frequency band.

Optionally, the wireless network access device 107 may eliminate a plurality of channels within a channel interference frequency band from all channels usable by the wireless local area network accessed by the wireless network access device 107, and the remaining plurality of channels form a switchable channel set.

Optionally, the wireless network access device 107 may include a part of channels usable by a wireless local area network accessed by the wireless network access device 107 into the switchable channel set. For example, the wireless network access device 107 may remove all channels that generate the first adjacent channel interference with the current operating frequency band from all channels that can be used by the wireless local area network accessed by the wireless network access device 107, and the remaining channels form a switchable channel set.

In the embodiment of the application, in the process of constructing the switchable channel set, the channel which generates the first adjacent channel interference and is adjacent to the current working frequency band in all channels which can be used by the wireless local area network accessed by the wireless network access equipment 107 is removed, so that the number of the channels in the switchable channel is reduced, the time for channel evaluation in the subsequent steps is reduced, and the time for switching the first channel to the second channel by the wireless network access equipment 107 is improved.

Step 602, evaluating each channel in the switchable channel set, and obtaining an evaluation parameter of each channel in the switchable channel set.

Optionally, the evaluation parameter characterizes how busy the channel is occupied and how much adjacent channel interference is. The busy level of the channel occupied may be the occupancy of the channel used by the wireless lan by other devices entering the wireless lan. Because the wlan working mechanism adopts a contention mechanism, that is, the information is sent in a channel preemption manner, and the stations 106 are densely deployed, if too many stations 106 are deployed in the same channel, the communication performance of the wlan is seriously affected by the interference of signals from other stations 106.

According to the embodiment of the application, the situation that the channel brought by the signal of the other station 106 is occupied is obtained by evaluating the parameter, so that the situation that the wireless network access equipment 107 switches the first channel to the channel with the serious channel occupation situation can be avoided.

Optionally, the adjacent channel interference includes first adjacent channel interference and second adjacent channel interference. The second adjacent channel interference is interference generated by adjacent channels of each channel in the switchable channel set.

In addition to the interference caused by the occupied channel, there is also interference caused by the adjacent channel in the switchable channel set. According to the method and the device, the first adjacent channel interference degree and the second adjacent channel interference degree of each channel in the switchable channel set are obtained through the evaluation parameters, the second adjacent channel interference brought by the adjacent channels is considered, the interference condition in the switchable channel set can be relatively accurately evaluated, and then the channel with the minimum interference can be selected as the second channel.

Step 603, selecting a second channel of the first channel switch in the switchable channel set according to the evaluation parameter of each channel in the switchable channel set.

In the signal processing method shown in fig. 2, the interference of the cellular network signal can be avoided by switching the first channel to the second channel, but a large number of stations 106 conforming to the IEEE802.11 standard may be deployed due to the 2.4G frequency band or the 5G frequency band of the wireless local area network, for example, Wi-Fi devices, bluetooth devices, and Zigbee devices. Therefore, when the first channel is switched to a channel with a dense signal arrangement of other wlans, the signals from other wlans will cause large interference. Further, if a large number of signals of other wireless local area networks exist on the adjacent frequency band of the second channel after channel switching, second adjacent frequency interference is also brought. In the signal processing method shown in fig. 6 in the embodiment of the present application, each channel in the switchable channel set is evaluated to obtain an evaluation parameter representing a busy degree of the channel and an adjacent channel interference degree, and then an interference situation of each channel in the switchable channel set is obtained according to the evaluation parameter, so that the communication performance of the wireless local area network and the cellular network can be improved by switching the first channel to the second channel with the minimum interference, and the internet access and the call quality of the user can be improved.

Fig. 7 is a flowchart of a signal processing method according to another embodiment of the present application, as shown in fig. 7, in the embodiment of the present application shown in fig. 6, the evaluating each channel in the switchable channel set in step 203 to obtain an evaluation parameter of each channel in the switchable channel set includes:

step 701, measuring each channel in the switchable channel set, and respectively obtaining a first channel busy parameter of each channel, which represents the busy degree of the occupied channel.

Alternatively, the wireless network access device 107 may obtain the busy time or the idle time of each Channel in the switchable Channel set by means of Clear Channel Assessment (CCA). The wireless network access device 107 may use the busy time or idle time of each channel as the first channel busy parameter. It will be appreciated that where the first channel busy parameter is the busy time of each channel in the switchable channel set, then the maximum value of the first channel busy parameter is the channel measurement time and the minimum value is 0. The channel measurement time may be represented by Total _ time.

Alternatively, the channel interference level may be characterized by a busy time or an idle time. For example, measurements may be made on multiple channels on which wlan 104 operates, respectively, to obtain busy or idle times for the channels. For example, one of the channels on which the wlan 104 operates may be arbitrarily selected for measurement. And receiving the message on the selected channel, and judging that the channel is idle if the message is not received or the received signal strength is less than a threshold value. Alternatively, if data is received or the received signal strength is greater than a threshold value, the channel is determined to be busy.

Alternatively, the busy time of each channel may be defined as a time when data is received within a set time or the received signal strength is greater than a threshold value.

In the embodiment of the present application, the threshold value may be preset. Optionally, the threshold value may also be set according to the network performance of the wireless local area network. Optionally, the threshold value may also be dynamically changed according to the network performance of the wireless local area network.

Optionally, the wireless network access device 107 may measure each channel in the switchable channel set, and obtain a first channel busy parameter indicating how busy the channel is occupied for each channel. The first channel busy parameter may be an average of channel busy times measured a plurality of times. As can be appreciated, since one measurement may result in insufficient sample time, the embodiment of the present application averages the first channel busy parameter through multiple measurements.

Step 702, calibrating a first channel busy parameter of each channel in the switchable channel set according to a manner of adjusting the first channel busy parameter of a channel adjacent to the current working frequency band in the switchable channel set to a maximum value or a minimum value, so as to obtain a second channel busy parameter of each channel in the switchable channel set.

Optionally, the wireless network access device 107 searches for a channel adjacent to the current operating frequency band in the switchable channel set. For example, if the current operating frequency Band is Band7 of a 4G LTE cellular network, the first channel busy parameter of the channels 12-14 in the 2.4G frequency Band in the switchable channel set is adjusted to the maximum value. The maximum value is the channel measurement time. For another example, if the current operating frequency Band is Band40 of the 4G LTE cellular network, the first channel busy parameter of channels 1 to 5 in the 2.4G frequency Band in the switchable channel set is adjusted to the maximum value. The maximum value is the channel measurement time. For another example, if the current operating frequency Band is Band79 of a 5G NR cellular network, the channel in the 2.4G frequency Band may not be adjusted.

Optionally, the first channel busy parameter of a channel in the switchable channel set, which is not adjacent to the current operating frequency band, is a second channel busy parameter. It can be understood that there is no first adjacent channel interference in the switchable channel set for the channel not adjacent to the current operating frequency band, so that calibration is not required, and the first channel busy parameter of the switchable channel set for the channel not adjacent to the current operating frequency band is the second channel busy parameter. The second channel busy parameter may be denoted busy _ time (idx). idx denotes the number of channels. For example, referring to Table 1, the channel numbers in the 2.4G band are channel numbers 1-14. For another example, referring to table 2, the channel numbers in the 5G band may be 36 to 165.

Step 703, assigning a weight variable to each channel in the switchable channel set and to adjacent channels of each channel in the switchable channel set. a is_mMay be used to represent the weight variables. m is an integer. m may be used to represent each channel in the switchable channel set and the adjacent channel of each channel in the switchable channel set. For example, in the case where m is 0, busy _ time (idx + m) represents a second channel busy parameter of the idx-th channel itself. For example, in the case where m is 1 or-1, busy _ time (idx + m) represents a second channel busy parameter of an adjacent channel of the idx-th channel.

Step 704, obtaining an evaluation parameter of each channel in the switchable channel set according to a manner of weighted average of the second channel busy parameter of each channel in the switchable channel set and the adjacent channel of each channel in the switchable channel set by the weight variable. In practice, the evaluation parameter time (idx) of the idx-th channel in the switchable channel set is:

alternatively, m may take on values within [ -2.2 ]. It will be appreciated that m may also take on larger or smaller values.

Alternatively, the weight variable is set in such a manner that the frequency interval between the adjacent channel and the channel to be evaluated decreases. For example, the weight variable a for the idx +1 th channel₁Weight variable a greater than idx +2 channel₂. The weight variation of the idx-th channel is largest. For example, in the embodiment of the present application, the weight of the idx-th channel becomesQuantity a₀Is 1. Weight variable a of idx +1 th channel₁Weight variable a associated with idx-1 channel_-1The same values are 0.8. Weight variable a for idx +2 channel₂Weight variable a associated with idx-2 channel_-2The same values are 0.5.

According to the signal processing method provided by the embodiment of the application, a first channel busy parameter is obtained by measuring the channel busy time, and the occupied busy degree of a channel is evaluated; a second channel busy parameter is obtained through calibration of the first channel busy parameter by the current working frequency band, and the degree of first adjacent channel interference can be evaluated; the second adjacent channel interference degree can be evaluated by endowing the adjacent channel with a weight value; and finally, the occupied busy degree of the channel, the first adjacent channel interference degree and the second adjacent channel interference degree can be fused in a weighted average mode. Since the first adjacent channel interference degree and the second adjacent channel interference degree cannot be accurately measured and can only be evaluated relatively inaccurately, the uncertainty of the evaluation of the first adjacent channel interference degree and the second adjacent channel interference degree can be reduced by means of weighted averaging.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Fig. 8 is a schematic structural diagram of a wireless network access device 107 according to an embodiment of the present disclosure, and as shown in fig. 8, the wireless network access device 107 may include: a communication module 81, an acquisition module 82, a detection module 83, and an execution module 84.

A communication module 81, configured to access a wireless local area network;

an obtaining module 82, configured to obtain a current operating frequency band of the cellular network;

the detecting module 83 is configured to detect whether a first channel used by the accessed wireless local area network and a current working frequency band have first adjacent channel interference; the first adjacent frequency interference is generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network;

the executing module 84 is configured to switch the currently used first channel to a second channel of the wireless local area network when the first adjacent channel interference exists and a channel switching condition is met, where the first adjacent channel interference received by the second channel is smaller than the first channel.

Optionally, the wireless network access device sets a channel interference frequency band in advance. The channel interference frequency band is a frequency band or a frequency band combination adjacent to an available working frequency band in a cellular network in a frequency band of a channel available to the wireless local area network.

Optionally, the detection module 83 includes:

a first obtaining submodule, configured to obtain a frequency band of the first channel;

the first judgment submodule is used for judging whether the frequency band of the first channel is in the channel interference frequency band or not and sending a judgment result to the first acquisition submodule;

the first obtaining sub-module is further configured to obtain the current working frequency band if the frequency band of the first channel is within the channel interference frequency band;

the first determining submodule is further configured to determine whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band, and send a determination result to the executing module.

According to another possible implementation, the detection module 83 includes:

the second obtaining submodule is used for obtaining the frequency band of the first channel and the current working frequency band;

and the second judgment submodule is used for judging whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band.

Optionally, the channel switching condition includes:

Optionally, the executing module 84 includes:

a third obtaining submodule, configured to obtain a switchable channel set formed by a plurality of channels that are usable by a wireless local area network accessed by the wireless network access device;

the switching execution submodule is used for evaluating each channel in the switchable channel set to obtain an evaluation parameter of each channel in the switchable channel set, and the evaluation parameter represents the occupied busy degree and the adjacent channel interference degree of the channel;

wherein the adjacent channel interference comprises the first adjacent channel interference and a second adjacent channel interference, and the second adjacent channel interference is interference generated by an adjacent channel of each channel in the switchable channel set;

the switching execution submodule is further configured to select the second channel of the first channel switching in the switchable channel set according to the evaluation parameter of each channel in the switchable channel set.

Optionally, the handover execution sub-module is specifically configured to:

measuring each channel in the switchable channel set, and respectively acquiring a first channel busy parameter of each channel, wherein the first channel busy parameter represents the busy degree of the occupied channel;

calibrating the first channel busy parameter of each channel in the switchable channel set according to a mode of adjusting the first channel busy parameter of the channel adjacent to the current working frequency band in the switchable channel set to be the maximum value or the minimum value, and obtaining a second channel busy parameter of each channel in the switchable channel set;

assigning a weight variable to each channel in the switchable channel set and to adjacent channels of each channel in the switchable channel set;

and acquiring the evaluation parameter of each channel in the switchable channel set according to a mode of weighted average of the second channel busy parameter of each channel in the switchable channel set and the adjacent channel of each channel in the switchable channel set by a weight variable. The evaluation parameter time (idx) of each channel in the switchable channel set is:

The wireless network access device 107 provided in the embodiment shown in fig. 8 may be used to implement the technical solutions of the method embodiments shown in fig. 1 to fig. 7 in this specification, and further reference may be made to the relevant descriptions in the method embodiments for implementing the principles and technical effects.

Fig. 9 is a schematic structural diagram of an assembly provided in an embodiment of the present disclosure. In this embodiment, the components may be disposed in the wireless network access device 107. As shown in fig. 9, the wireless network access device may include: a communication module 91, an acquisition module 92, a detection module 93, and an execution module 94.

A communication module 91, configured to access a wireless local area network;

an obtaining module 92, configured to obtain a current working frequency band of the cellular network;

a detecting module 93, configured to detect whether a first channel used by the accessed wireless local area network and a current working frequency band have first adjacent channel interference; the first adjacent frequency interference is generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network;

the executing module 94 is configured to switch the currently used first channel to a second channel of the wireless local area network, where the first adjacent channel interference is smaller than the first channel, if the first adjacent channel interference exists and the channel switching condition is satisfied.

The components provided by the embodiment may be one or a combination of several of electronic devices, modules, and chips for accessing a wireless local area network. For example, the component provided by the present embodiment may be a Wi-Fi module or chip. Also for example, the component provided by the present embodiment may be a module or a chip integrating one or a combination of two technologies of Wi-Fi technology, bluetooth technology, and FM technology.

Optionally, the components provided in this embodiment may also be applied to an electronic module or an electronic chipset that integrates a modulation receiver and an access to a wireless lan.

The embodiment shown in fig. 9 provides components that can be used to implement the technical solutions of the method embodiments shown in fig. 1 to 7 in this specification, and the implementation principles and technical effects thereof can be further referred to the related descriptions in the method embodiments.

Fig. 10 is a schematic structural diagram of an apparatus provided in an embodiment of the present specification, and as shown in fig. 10, the terminal apparatus may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the signal processing method provided by the embodiments shown in fig. 1 to 7 in the present specification.

The terminal device may be an intelligent electronic device such as a smart phone, a tablet computer, or a notebook computer, and the form of the terminal device is not limited in this embodiment.

For example, fig. 10 illustrates a schematic structure of a terminal device by taking a smart phone as a wireless access point, as shown in fig. 10, the device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like.

It is understood that the wireless communication module 160 is capable of accessing a wireless local area network. The mobile communication module 150 may access a cellular network.

It is to be understood that the illustrated structure of the embodiments of the present application does not constitute a specific limitation to the apparatus 100. In other embodiments of the present application, the apparatus 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

The processor 110 executes various functional applications and data processing by executing programs stored in the internal memory 121, for example, implementing the signal processing method provided in the embodiments of fig. 1 to 7 of the present application.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the device 100. The charging management module 140 may also provide power to the device 100 via the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication and the like applied on the device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the device 100, including Wireless Local Area Networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of device 100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that device 100 can communicate with networks and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The device 100 implements display functions via the GPU, the display screen 194, and the application processor, among other things. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The device 100 may implement a camera function via the ISP, camera 193, video codec, GPU, display screen 194, application processor, etc.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the apparatus 100 is in frequency bin selection, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The device 100 may support one or more video codecs. In this way, the device 100 can play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent learning of the device 100 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to implement the storage capability of the expansion device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The stored data area may store data created during use of the device 100 (e.g., audio data, phone book, etc.), and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications of the device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The device 100 may implement audio functions via an audio module 170, a speaker 170A, a microphone 170C, a headphone interface 170D, and an application processor, among others. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The device 100 may listen to music through the speaker 170A or to a hands-free conversation.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the device 100 receives a call or voice information, it can receive voice by placing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking the user's mouth near the microphone 170C. The device 100 may be provided with at least one microphone 170C. In other embodiments, the device 100 may be provided with two microphones 170C to achieve noise reduction functions in addition to collecting sound signals. In other embodiments, the apparatus 100 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, perform directional recording, and so on.

The headphone interface 170D is used to connect a wired headphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The device 100 may receive key inputs, generate key signal inputs relating to user settings and function control of the device 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the device 100 by being inserted into the SIM card interface 195 or by being pulled out of the SIM card interface 195. The device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The device 100 interacts with the network through the SIM card to implement functions such as telephony and data communication. In some embodiments, the device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the device 100 and cannot be separated from the device 100.

The embodiment of the present application provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions enable a computer to execute the signal processing method provided by the embodiment shown in fig. 1 to 7 in this specification.

The non-transitory computer readable storage medium described above may take any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM) or flash memory, an optical fiber, a portable compact disc read only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present description may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

In the description of embodiments of the invention, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present specification, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present description in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present description.

The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It should be noted that the terminal referred to in the embodiments of the present application may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a tablet computer (tablet computer), a mobile phone, an MP3 player, an MP4 player, and the like.

In the several embodiments provided in this specification, it should be understood that the disclosed apparatus, assembly, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present description may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present disclosure. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A signal processing method is applied to wireless network access equipment, and is characterized by comprising the following steps:

the wireless network access equipment detects whether a first channel used by an accessed wireless local area network and a current working frequency band of a cellular network accessed by the wireless network access equipment have first adjacent channel interference or not;

the first adjacent channel interference is interference generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network;

if the first adjacent channel interference exists and the channel switching condition is met, the wireless network access equipment switches the first channel currently used into a second channel of a wireless local area network,

the second channel is subject to less first adjacent channel interference than the first channel.

2. The method of claim 1, wherein the detecting, by the wireless network access device, whether the first channel used after the accessed wireless local area network and the current operating frequency band of the cellular network to which the wireless network access device is accessed have the first adjacent channel interference comprises:

the wireless network access equipment presets a channel interference frequency band, wherein the channel interference frequency band is a frequency band or a frequency band combination which is adjacent to a usable working frequency band in a cellular network in the frequency bands of usable channels of a wireless local area network;

acquiring the frequency band of the first channel, and judging whether the frequency band of the first channel is in the channel interference frequency band;

and if the frequency band of the first channel is in the channel interference frequency band, acquiring the current working frequency band, and judging whether the frequency band of the first channel and the current working frequency band have the first adjacent channel interference.

3. The method of claim 1, wherein the detecting, by the wireless network access device, whether the first channel used after the accessed wireless local area network and the current operating frequency band of the cellular network to which the wireless network access device is accessed have the first adjacent channel interference comprises:

acquiring the frequency band of the first channel and the current working frequency band;

and judging whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band.

4. A method according to any of claims 1-3, wherein the channel switching conditions comprise:

5. The method of any one of claims 1-3, wherein the switching the first channel currently used by the wireless network access device to a second channel of a wireless local area network comprises:

acquiring a switchable channel set formed by a plurality of channels which can be used by a wireless local area network accessed by the wireless network access equipment;

evaluating each channel in the switchable channel set to obtain an evaluation parameter of each channel in the switchable channel set, wherein the evaluation parameter represents the busy degree of the occupied channel and the adjacent channel interference degree;

selecting the second channel of the first channel switch within the switchable channel set according to the evaluated parameter of each channel within the switchable channel set.

6. The method of claim 5, wherein the obtaining the evaluation parameter of each channel in the switchable channel set comprises:

and acquiring the evaluation parameter of each channel in the switchable channel set according to a mode of weighted average of the second channel busy parameter of each channel in the switchable channel set and the adjacent channel of each channel in the switchable channel set by a weight variable.

7. The method of claim 5, wherein the obtaining the evaluation parameter of each channel in the switchable channel set comprises:

the evaluation parameter time (idx) of each channel in the switchable channel set is:

8. A wireless network access device, comprising:

the communication module is used for accessing a wireless local area network;

the acquisition module is used for acquiring the current working frequency band of the cellular network;

the detection module is used for detecting whether a first channel used by the accessed wireless local area network and the current working frequency band have first adjacent channel interference or not; the first adjacent channel interference is interference generated by the frequency band of a channel used by the wireless local area network and the adjacent working frequency band of the cellular network;

and the execution module is used for switching the currently used first channel into a second channel of the wireless local area network under the condition that the first adjacent channel interference exists and the channel switching condition is met, wherein the first adjacent channel interference received by the second channel is smaller than the first channel.

9. The device of claim 8, wherein the wireless network access device presets a channel interference frequency band, which is a frequency band or a frequency band combination adjacent to an operating frequency band available in a cellular network, among frequency bands of channels available in a wireless local area network, and the detecting module includes:

10. The wireless network access device of claim 8, wherein the detection module comprises:

and the second judgment submodule is used for judging whether the frequency band of the first channel has the first adjacent channel interference with the current working frequency band or not and sending a judgment result to the execution module.

11. The wireless network access device of any one of claims 8-10, wherein the channel switching condition comprises:

12. The wireless network access device of any one of claims 8-10, wherein the execution module comprises:

13. The wireless network access device of claim 12, wherein the handover execution sub-module is specifically configured to:

14. The wireless network access device of claim 12, wherein the handover execution sub-module is specifically configured to:

15. An assembly disposed in a wireless network access device, comprising:

the communication module is used for accessing a wireless local area network;

16. An apparatus, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 7.

17. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 7.