WO2018098913A1 - 一种信道选择方法及设备 - Google Patents

一种信道选择方法及设备 Download PDF

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Publication number
WO2018098913A1
WO2018098913A1 PCT/CN2017/074768 CN2017074768W WO2018098913A1 WO 2018098913 A1 WO2018098913 A1 WO 2018098913A1 CN 2017074768 W CN2017074768 W CN 2017074768W WO 2018098913 A1 WO2018098913 A1 WO 2018098913A1
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channel
wifi
list
belonging
channel set
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PCT/CN2017/074768
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English (en)
French (fr)
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王伟刚
高林
胡同明
安康
屈立虎
胡裕峰
赵雪刚
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华为技术有限公司
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Priority to EP17875752.2A priority Critical patent/EP3541035B1/en
Priority to CN201780009063.5A priority patent/CN108605033B/zh
Publication of WO2018098913A1 publication Critical patent/WO2018098913A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a channel selection method and device.
  • WiFi Wireless-Fidelity
  • the 2.4 gigahertz (GHz) frequency band used by WiFi networks is becoming more and more crowded and cannot meet the development needs.
  • Governments have gradually opened the 5GHz (5150MHz-5825MHz) frequency band, and the 5GHz frequency band has higher data transmission efficiency than the 2.4GHz frequency band. .
  • the channels in the 5G frequency band are divided into an indoor channel and an outdoor channel.
  • the channels in the 5G band are classified into a Dynamic Frequency Selection (DFS) channel and a non-DFS channel.
  • DFS Dynamic Frequency Selection
  • the 5G frequency band and the working frequency band of the global radar system partially overlap.
  • the WiFi device working on the DFS channel must check the radar signal during startup and operation, if it is detected.
  • the channel is switched to avoid interference with radar waves.
  • the user terminal cannot access the AP and cannot access the network.
  • 1 is a flowchart of a channel selection method in the prior art, which specifically includes: acquiring a list of 5G WIFI channels corresponding to a current country; scanning each channel in the 5G WIFI channel list to obtain each channel Evaluate the parameters; score the evaluation parameters and perform weighted summation to calculate the total score of each channel; select one channel with the highest total score as the current working channel.
  • 2 is a flowchart of another method for selecting a channel in the prior art, specifically, including: acquiring a list of 5G WIFI channels corresponding to a current country; and if there is a non-DFS channel in the list of 5G WIFI channels, in the 5G WIFI channel Randomly selecting one channel as the current working channel in the non-DFS channel in the list; if there is no non-DFS channel in the 5G WIFI channel list, randomly selecting one channel as the current working channel in the DFS channel in the 5G WIFI channel list .
  • a disadvantage of the channel selection method shown in FIG. 1 and FIG. 2 is that when the WiFi device is operating outdoors, if the selected current working channel is an indoor channel, the law may be violated; if the selected current working channel is a DFS channel, WiFi is used.
  • the radar signal detection is performed during the startup and operation phases. In the radar signal detection phase, the WiFi device cannot access the network. As a result, the user terminal accessing the WiFi device cannot access the AP during the detection phase and cannot access the network. user experience.
  • the embodiment of the present application discloses a channel selection method and device, which can preferentially select a current working channel in an outdoor, non-DFS channel.
  • the application provides a channel selection method, the method comprising:
  • each channel in the first channel set is an outdoor channel and is a non-DFS Channel, in a possible solution, the first channel set is a W58 channel set;
  • the highest evaluation score in the channel belonging to the first channel set in the 5G WIFI channel list is greater than the first preset threshold associated with the first channel set, selecting the first channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the optimal quality channel can be selected as the current working channel in the outdoor and non-DFS channels, and when the indoor channel is selected, the other devices are interfered with when the corresponding device works outdoors, and the selection is avoided.
  • the DFS channel is used, the corresponding device cannot access the network during the detection of the radar signal.
  • the method further includes:
  • each channel in the second channel set is an outdoor channel and is a DFS channel, and in one possible scheme, the second channel set is a W56 channel set;
  • the highest evaluation score in the channel belonging to the second channel set in the 5G WIFI channel list is greater than the second preset threshold associated with the second channel set, selecting the second channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the channel with the best quality can be selected as the current working channel in the outdoor and DFS channels in the 5G WIFI channel list corresponding to the current region, which can avoid the operation of the corresponding device when the indoor channel is selected. In other cases, it affects other devices.
  • the method further includes:
  • each channel in the third channel set is an indoor channel and is a non-DFS channel, and in a possible implementation, the third channel set is a W52 channel set ;
  • the highest evaluation score in the channel belonging to the third channel set in the 5G WIFI channel list is greater than the third preset threshold associated with the third channel set, selecting the third channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the channel with the best quality can be selected as the current working channel in the indoor and non-DFS channels in the 5G WIFI channel list corresponding to the current region, and when the DFS channel is selected, the corresponding device is performing the radar signal.
  • the network cannot be accessed during the detection process.
  • the method further includes:
  • each channel in the fourth channel set is an indoor channel and is a DFS channel, in one In a possible solution, the fourth channel set is a W53 channel set;
  • the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is greater than the fourth preset threshold associated with the fourth channel set, selecting the fourth channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the channel quality of the outdoor non-DFS channel, the indoor non-DFS channel, and the outdoor DFS channel in the 5G WIFI channel list corresponding to the current region cannot meet the corresponding channel quality threshold, and is in the indoor DFS channel. Selecting the channel with the best quality as the current working channel can guarantee the channel quality of the current working channel.
  • the method further includes:
  • the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is less than or equal to the fourth preset threshold associated with the fourth channel set, select an evaluation score in the 5G WIFI channel list. The highest channel is used as the current working channel.
  • the channel with the best quality can be selected as the current working channel among all the channels in the 5G WIFI channel list corresponding to the current region, and the quality of the current working channel is guaranteed.
  • the calculating an evaluation score of each channel in the 5G WIFI channel list that belongs to the first channel set includes:
  • the application provides an apparatus, the apparatus comprising a processor and a memory, wherein:
  • the memory is for storing instructions and data
  • the processor is configured to perform any one of the first aspect and each possible implementation manner of the first aspect.
  • the present application provides an apparatus comprising functional units for performing some or all of the steps of any of the implementations of the first aspect of the present application.
  • the application provides a computer readable storage medium, the computer readable storage medium storing The instructions, when run on a computer, cause the computer to perform any of the first aspect and each of the possible implementations of the first aspect.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • the device can preferentially select the channel with the best quality as the current working channel in the outdoor and non-DFS channels, avoiding interference with other devices while the device is working outdoors, and avoiding selection when the device is selected to the indoor channel.
  • the device cannot access the network during the detection of the radar signal.
  • FIG. 1 is a schematic flow chart of a channel selection method in the prior art
  • FIG. 2 is a schematic flow chart of another channel selection method in the prior art
  • FIG. 3 is a schematic structural diagram of a network system provided by the present application.
  • FIG. 4 is a schematic flowchart of a channel selection method provided by the present application.
  • 5-1 is a schematic flowchart of determining whether a current working channel can be selected in a first channel set according to the present application
  • FIG. 5-2 is a schematic flowchart of determining whether a current working channel can be selected in a second channel set according to the present application
  • FIG. 5-3 is a schematic flowchart of determining whether a current working channel can be selected in a third channel set according to the present application
  • FIG. 5-4 is a schematic flowchart of determining whether a current working channel can be selected in a fourth channel set according to the present application
  • FIG. 6 is a schematic structural diagram of an apparatus provided by the present application.
  • FIG. 7 is a schematic structural diagram of still another apparatus provided by the present application.
  • FIG. 3 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the network system includes an access device 110, a WiFi device 120, and a user terminal 130.
  • the access device 110 is an access point where the WiFi device 120 enters the network, and the WiFi device accesses the network and accesses network resources.
  • the access device 110 may be a base station (BS) or a wireless access point (wireless AP).
  • the WiFi device 120 connects the access device 110 to access the network.
  • WiFi devices include, but are not limited to, portable broadband wireless (Mobile-WiFi, MIFI) devices, routers, switches, and the like.
  • the WiFi device is configured with a WiFi chip, and the WiFi chip can support the WiFi device 120 to operate in the 5G frequency band, and select one channel of the 5G frequency band as the working channel.
  • the WiFi device 120 can connect a plurality of user terminals 130.
  • the WiFi device 120 and the plurality of user terminals 130 connected thereto transmit information and data using a working channel selected by the WiFi chip when performing data communication.
  • the user terminal 130 is a device configured with a WiFi communication module and supporting 5G WiFi.
  • the user terminal 130 can access the WiFi device 120 through the WiFi communication module, access the access device 110 through the WiFi device 120 to access the network, and thus other devices.
  • Data communication includes, but is not limited to, a smart phone (such as an Android mobile phone, an iOS mobile phone, etc.), a tablet computer, a palmtop computer, a notebook computer, and a mobile Internet device (Mobile Internet Devices, MID) or wearable devices (such as smart watches, smart bracelets, etc.).
  • a smart phone such as an Android mobile phone, an iOS mobile phone, etc.
  • a tablet computer such as an iOS mobile phone, etc.
  • a palmtop computer such as a notebook computer
  • a mobile Internet device Mobile Internet Devices, MID
  • wearable devices such as smart watches, smart bracelets, etc.
  • the 5G frequency band and the access device 110 and the user terminal 130 are used to transmit information or data.
  • the 5G frequency band it is divided into several channels according to the frequency. Please refer to Table 1.
  • Table 1 shows the available channel division of the 5G frequency band and the available channels in some areas.
  • the channels in the 5G frequency band can be divided into a W52 channel set, a W53 channel set, a W56 channel set, and a W58 channel set.
  • W52 channel sets include ⁇ 36 channels, 40 channels, 44 channels, 48 channels ⁇ ; channels with frequencies around 5.3 GHz are collectively referred to as W53 channel sets, and W53 channel sets include ⁇ 52 Channel, 56 channels, 60 channels, 64 channels ⁇ ; channels with frequencies around 5.6 GHz are collectively referred to as W56 channel sets, and W56 channel sets include ⁇ 100 channels, 104 channels, 108 channels, 112 channels, 116 channels, 120 channels, 124 channels.
  • W58 channel sets 128 channels, 132 channels, 136 channels, 140 channels, 144 channels ⁇ ; channels with frequencies around 5.8 GHz are collectively referred to as W58 channel sets, and W58 channel sets include ⁇ 149 channels, 153 channels, 157 channels, 161 channels, 165 channels ⁇ .
  • Each channel in the W52 channel set is an indoor non-DFS channel
  • each channel in the W53 channel set is an indoor DFS channel
  • each channel in the W56 channel set is an outdoor DFS channel
  • each channel in the W58 channel set is an outdoor non-DFS channel.
  • the indoor channel can only be used by the WiFi device working indoors, and cannot be used by the WiFi device working outdoors; the working frequency band of the DFS channel and the global radar system coincide, and the WiFi device working on the DFS channel is in the startup and operation phases.
  • the radar wave detection is performed, and during the detection process, the user terminal connected to the WiFi device operating on the DFS channel cannot access the AP, and the WiFi cannot be used.
  • the 5G band can be divided into multiple channels, not every channel in the 5G band can be used. Since the 5G frequency band partially overlaps with the frequency band of the global radar system, for the sake of safety, the 5G frequency bands that can be supported by each country or region are different, as shown in Table 1.
  • FIG. 4 is a schematic flowchart of a channel selection method provided by the present application, where the method includes:
  • Step S401 Acquire a list of 5G WIFI channels corresponding to the current area.
  • the list of 5G WIFI channels corresponding to the current area refers to a collection of allowable 5G channels specified by laws and regulations of the area where the WiFi device is located.
  • the 5G channels allowed to be used in different areas are different.
  • the 5G channels allowed to be used in the United States include ⁇ 36 channels, 40 channels, 44 channels, 48 channels, 52 channels, 56 channels, 60 channels, 64 channels, 100 channels, 104 channels, 108 channels, 112 channels, 116 channels, 120 channels, 124 channels, 128 channels, 132 channels, 136 channels, 140 channels, 144 channels, 149 channels, 153 channels, 157 channels, 161 channels, 165 channels ⁇
  • China's open permitted 5G channels include ⁇ 36 channels, 40 channels, 44 channels, 48 channels, 52 channels, 56 channels, 60 channels, 64 channels, 149 channels, 153 channels, 157 channels, 161 channels, 165 channels.
  • Table 1 shows the available 5G channels that are partially open. Since the 5G channels allowed to be used in different areas are different, the WiFi device first needs to obtain a list of available 5G WIFI channels in the current area when using the different areas, and then select the current work in the channels allowed in the current area. channel.
  • the WiFi device stores a list of available 5G WIFI channels in each area, and determines a list of 5G channels available to the current WiFi device by determining an area in which the WiFi device is located.
  • the 5G WIFI channel list that can be used in the current area can be obtained according to the identifier of the current area of the WiFi device, where the identifier of the current area can be an abbreviation of the area, a country code, a country code, and the like. The only identifier that identifies the area.
  • the WiFi device can determine, by the country code USA, that the list of 5G WIFI channels available in the US is ⁇ 36 channels, 40 channels, 44 channels, 48 channels, 52 channels, 56 channels, 60 channels, 64 channels, 100 channels, 104 channels, 108 channels, 112 channels, 116 channels, 120 channels, 124 channels, 128 channels, 132 channels, 136 channels, 140 channels, 144 channels, 149 channels, 153 channels , 157 channels, 161 channels, 165 channels ⁇ .
  • the WiFi device may also obtain, from other devices connected to the WiFi device, a list of 5G WIFI channels available in the current region, for example, the WiFi device may obtain a request from the connected wireless AP by sending a channel list request. A list of 5G WIFI channels available in the current zone.
  • Step S402 Determine whether there is a working channel that meets the requirement in the channel belonging to the first channel set in the 5G WIFI channel list.
  • Figure 5-1 is a schematic flowchart of determining whether the current working channel can be selected in the first channel set, and the following steps are included:
  • the WiFi device first determines whether there is a channel belonging to the first channel set in the 5G WIFI channel list, where each channel in the first channel set is an outdoor channel and is a non-DFS channel. Determining whether a channel belonging to the first channel set exists in the 5G WIFI channel list is equivalent to performing an intersection operation on the 5G WIFI channel list and the first channel set, and searching for the same in the 5G WIFI channel list and belonging to the first The channel of the channel set.
  • the first channel set is a W58 channel set, that is, the first channel set is ⁇ 149 channel, 153 channel, 157 channel, 161 channel, 165 channel ⁇ .
  • the corresponding 5G WIFI channel list in the United States is ⁇ 36 channel, 40 channel, 44 channel, 48 channel, 52 channel, 56 channel, 60 channel, 64 channel, 100 channel, 104 channel, 108 channels, 112 channels, 116 channels, 120 channels, 124 channels, 128 channels, 132 channels, 136 channels, 140 channels, 144 channels, 149 channels, 153 channels, 157 channels, 161 channels, 165 channels ⁇
  • the channel of a channel set ie, ⁇ 149 channel, 153 channel, 157 channel, 161 channel, 165 channel ⁇ .
  • Step S4021 If there is a channel belonging to the first channel set in the 5G WIFI channel list, calculate an evaluation score of each channel belonging to the first channel set in the 5G WIFI channel list, and the evaluation score directly reflects each Link quality of the channels.
  • the evaluation score for each channel can be calculated by:
  • the WiFi device scans each channel belonging to the first channel set in the list of available 5G WIFI channels in the current area, and obtains the evaluation parameters of each of the channels.
  • the WiFi device can scan each channel belonging to the first channel set in the 5G WIFI channel list by Active Scanning or Passive Scanning, and obtain evaluation parameters of each channel. Assuming that the current country is the United States, the WiFi device scans the channels belonging to the first channel set in the corresponding 5G list in the United States, that is, ⁇ 149 channels, 153 channels, 157 channels, 161 channels, and 165 channels ⁇ , and the WiFi device scans 149 channels as an example.
  • the WiFi device When the WiFi device actively scans 149 channels, it acquires the usage right of 149 channels through Carrier Sense Multiple Access with Collision Detection (CSMA/CD) and sends a MAC address containing its own media access control. Broadcast the probe frame and start the probe timer. The WiFi device waits for the probe reply within the maximum channel waiting time (Max Channel Time), records all the responses received within the maximum channel waiting delay, and obtains 149 channels from the reply. Evaluation parameters. The WiFi device switches to the next channel after the probe timer expires, and repeats the above operations until all channels belonging to the first channel set in the corresponding 5G list of the United States are scanned.
  • CSMA/CD Carrier Sense Multiple Access with Collision Detection
  • the WiFi device When the WiFi device passively scans 149 channels, it can receive the beacon frame sent by the wireless AP occupying 149 channels, and parse the beacon frame to obtain the evaluation parameters of 149 channels.
  • the WiFi device can obtain the evaluation parameters of all channels belonging to the first channel set in the corresponding 5G WIFI channel list in the United States by the method of passive scanning.
  • the evaluation parameter may include the number of BS/wireless APs that are working on the channel, the time that the BS/radio AP transmits data on the channel, the number of basic service sets (BSS) on the channel, and the channel.
  • the time when the basic service set sends data is sustainable, the interference of another wireless access point when one of the wireless access points on the channel works, and the Cyclic Redundancy Check (CRC) received on the channel.
  • CRC Cyclic Redundancy Check
  • the number of wrong packets, The background noise on the channel and the like reflect the parameters of the channel quality.
  • the specific quantity and type of the evaluation parameters of each channel acquired by the WiFi device may be preset, or may be adjusted according to the specific conditions of the country, user requirements, and the like of the WiFi device.
  • the scores of the respective evaluation parameters of each of the channels are respectively calculated according to the evaluation parameters of each of the channels. Assuming that there are N evaluation parameters for each channel, after obtaining N evaluation parameters of each channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current region, respectively, calculating N evaluation parameters in each channel. score.
  • the WiFi device calculates the score of the N evaluation parameters in each channel according to the specific conditions of each evaluation parameter in each channel. For example, in an alternative scenario, assuming that a 100-point system is used, the number of working wireless APs on the channel may be as shown in Table 2:
  • the evaluation parameters (the number of wireless APs working on the channel)
  • the score is 70 points.
  • Table 2 is a scoring table for the evaluation parameters. The specific rating of each evaluation parameter can be changed according to the current situation of the WiFi device and the user's needs. Table 2 only shows the wireless APs that are working on the channel. The number of scoring rules for the evaluation parameters, and the other scoring rules for each of the evaluation parameters in the channel are similar, and will not be described here.
  • the application obtains the same quantity and type of evaluation parameters for each channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current region. For the same evaluation parameter, a corresponding weighting factor is assigned according to the importance degree of the evaluation parameter, and the weighting factor is the same for all channels.
  • Equation 1-1 the evaluation score can be calculated by Equation 1-1, and Equation 1-1 is as follows:
  • S(i) is an evaluation score of a channel with a channel number i in a channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current area of the WiFi device, and the first channel belongs to the 5G WIFI channel list by i respectively.
  • the channel number corresponding to the set channel is used to obtain the evaluation score of each channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current region; a1 i is the score of the first evaluation parameter in the i channel, and a2 i is the second evaluation The score of the parameter in the i channel, aN i is the score of the Nth evaluation parameter in the i channel; f1 is the weighting factor corresponding to the first evaluation parameter, f2 is the weighting factor corresponding to the first evaluation parameter, and fN is the first evaluation parameter Corresponding weighting factor.
  • the formula 1-1 is equivalent to weighting and summing the evaluation parameters in the i channel, and can reflect the channel quality of the i channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current area of the WiFi device.
  • Step S4022 Calculating an evaluation score of a channel belonging to the first channel set in the 5G WIFI channel list Afterwards, the WiFi device determines whether the highest evaluation score in the channel belonging to the first channel set in the 5G WIFI channel list is greater than a first preset threshold associated with the first channel set.
  • Step S4023 If the channel belonging to the first channel set in the 5G WIFI channel list, the highest evaluation score is greater than the first preset threshold associated with the first channel set, and belongs to the fifth in the 5G WIFI channel list. Among the channels of a channel set, the channel with the highest evaluation score is selected as the working channel.
  • the first preset threshold is a lowest quality threshold of the first channel set, and in a channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current area, if there is a channel whose evaluation score is lower than the first preset threshold Indicates that the link quality of the channel is not good and does not satisfy the minimum quality threshold of the first channel set.
  • the preset threshold can be obtained by using Equation 1-2, and Equation 1-2 is as follows:
  • T(1) is a first preset threshold corresponding to the first channel set
  • a1 is a score of a first evaluation parameter when the lowest channel quality is satisfied in the first channel set
  • a2 is a time when the lowest channel quality is satisfied in the first channel set.
  • the score of the second evaluation parameter, a3 is the score of the Nth evaluation parameter when the lowest channel quality is satisfied in the first channel set
  • f1 is the weighting factor corresponding to the first evaluation parameter
  • f2 is the weighting factor corresponding to the second evaluation parameter
  • fN The weighting factor corresponding to the Nth evaluation parameter.
  • Equation 1-2 is equivalent to weighting and summing the respective evaluation parameters when the first channel set satisfies the lowest channel quality, and can reflect the lowest quality threshold of the first channel set.
  • the first preset threshold may be customized according to the specific needs of the WiFi device.
  • the first preset threshold is set to be high, if the current working channel is selected in the channel belonging to the first channel set in the 5G WIFI channel list corresponding to the current region, the quality of the current working channel is relatively high. .
  • the highest score among the channels belonging to the first channel set (W58 channel set) in the corresponding 5G WIFI channel list in the United States is 149 channels, and the evaluation score of 149 channels is S (149). It is assumed that the first preset threshold associated with the first channel set is T(1), and if S(149)>T(1), the 149 channel is selected as the current working channel of the WiFi device.
  • Step S4024 If the highest evaluation score is less than or equal to the first preset threshold associated with the first channel set in the channel belonging to the first channel set in the 5G WIFI channel list, then the 5G WIFI channel is Among the channels belonging to the first channel set in the list, the working channel is not selected, and the flow proceeds to step S403.
  • Step S403 Determine whether there is a working channel that meets the requirement in the channel belonging to the second channel set in the 5G WIFI channel list.
  • FIG. 5-2 is A flow chart provided by the application for determining whether the current working channel can be selected in the second channel set includes the following steps:
  • the second channel set is a W56 channel set, that is, the second channel set is ⁇ 100 channels, 104.
  • Step S4031 In a case where there is a channel belonging to the second channel set in the 5G WIFI channel list, an evaluation score of each channel belonging to the second channel set in the 5G WIFI channel list is calculated. It is to be noted that the operation of calculating the evaluation score of each channel belonging to the second channel set in the 5G WIFI channel list is similar to the principle in step S402, and details are not described herein.
  • Step S4032 After acquiring the evaluation scores of all the channels belonging to the second channel set in the 5G WIFI channel list, the WiFi device determines whether the highest evaluation score in the channel belonging to the second channel set in the 5G WIFI channel list is greater than a second predetermined threshold associated with the second set of channels.
  • the second preset threshold is a lowest quality threshold of the second channel set, and in the channel belonging to the second channel set in the 5G WIFI channel list corresponding to the current area, if there is a channel whose evaluation score is lower than the second preset threshold Indicates that the link quality of the channel is not good and does not satisfy the minimum quality threshold of the second channel set.
  • the second preset threshold may be obtained by a method similar to the formula 1-2, and the second preset threshold may be customized according to specific requirements of the WiFi device.
  • the second preset threshold is set to be high, if the current working channel is selected in the channel belonging to the second channel set in the 5G WIFI channel list corresponding to the current region, the quality of the current working channel is relatively high. .
  • Step S4033 If the channel belonging to the second channel set in the 5G WIFI channel list, the highest evaluation score is greater than the second preset threshold corresponding to the second channel set, the WiFi device is in the 5G WIFI channel list. Among the channels belonging to the second channel set, the channel with the highest evaluation score is selected as the working channel.
  • the current location of the WiFi device is the United States.
  • the highest score of the channel belonging to the second channel set (W56 channel set) in the corresponding 5G WIFI channel list in the United States is 100 channels, and the evaluation score of the 100 channel is assumed to be S (100), the second preset threshold associated with the second channel set is T(2), and if S(100)>T(2), 100 channels are selected as the current working channel of the WiFi device.
  • Step S4034 If the highest evaluation score in the channel belonging to the second channel set in the 5G WIFI channel list is less than or equal to the second preset threshold associated with the second channel set, then the 5G WIFI channel is The channel belonging to the second channel set in the list does not have the required working channel, that is, the current working channel is not selected, and the process proceeds to step S404.
  • Step S404 Determine whether there is a working channel that meets the requirement in the channel belonging to the third channel set in the 5G WIFI channel list.
  • FIG. 5-3 is the present application.
  • a schematic diagram of a process for determining whether a current working channel can be selected in a third channel set includes the following steps:
  • the third channel set is a W52 channel set, that is, the third channel set is ⁇ 36 channels, 40 channels, 44 channels, 48 channels ⁇ .
  • the third channel set is ⁇ 36 channels, 40 channels, 44 channels, 48 channels ⁇ .
  • Step S4041 If there is a channel belonging to the third channel set in the 5G WIFI channel list, calculate an evaluation score of each channel belonging to the third channel set in the 5G WIFI channel list. It is to be noted that the operation of calculating the evaluation score of each channel belonging to the third channel set in the 5G WIFI channel list is similar to the principle of step S402, and details are not described herein.
  • Step S4042 After calculating the evaluation scores of all the channels belonging to the third channel set in the 5G WIFI channel list, the WiFi device determines whether the highest evaluation score in the channel belonging to the third channel set in the 5G WIFI channel list is Greater than a third predetermined threshold associated with the third set of channels.
  • the third preset threshold is a lowest quality threshold of the third channel set, and in the channel belonging to the third channel set in the 5G WIFI channel list corresponding to the current area, if there is a channel whose evaluation score is lower than the third preset threshold Indicates that the link quality of the channel is not good and does not satisfy the minimum quality threshold of the third channel set.
  • the third preset threshold may be obtained by a method similar to Equation 1-2, and the third preset threshold may be customized according to specific requirements of the WiFi device.
  • the third preset threshold is set to be high, if the current working channel is selected in the channel belonging to the third channel set in the 5G WIFI channel list associated with the current region, the quality of the current working channel is relatively high. .
  • Step S4043 If the channel belonging to the third channel set in the 5G WIFI channel list, the highest evaluation score is greater than the third preset threshold corresponding to the third channel set, and belongs to the fifth in the 5G WIFI channel list. The channel with the highest evaluation score is selected as the working channel among the channels of the three channel set.
  • the current location of the WiFi device is the United States.
  • the highest score in the channel belonging to the third channel set (W52 channel set) in the corresponding 5G WIFI channel list in the United States is 36 channels, and the evaluation score of the 36 channels is assumed to be S (36), the third preset threshold associated with the third channel set is T(3), and if S(36)>T(3), 36 channels are selected as the current working channel of the WiFi device.
  • Step S4044 If the highest evaluation score in the channel belonging to the third channel set in the 5G WIFI channel list is less than or equal to a third preset threshold associated with the third channel set, then the 5G WIFI channel is The channel belonging to the third channel set in the list does not have the required working channel, that is, the current working channel is not selected, and the process proceeds to step S405.
  • Step S405 Determine whether there is a working channel that meets the requirement in the channel belonging to the fourth channel set in the 5G WIFI channel list.
  • FIG. 5-4 is the present application.
  • a flow diagram is provided to determine whether a current working channel can be selected in the fourth channel set, including the following steps:
  • the fourth channel set is a W53 channel set, that is, the fourth channel set is ⁇ 52 channels, 56. Channel, 60 channels, 64 channels ⁇ .
  • the fourth channel set is ⁇ 52 channels, 56. Channel, 60 channels, 64 channels ⁇ .
  • Step S4051 In a case where there is a channel belonging to the fourth channel set in the 5G WIFI channel list, an evaluation score of each channel belonging to the fourth channel set in the 5G WIFI channel list is calculated. It is to be noted that the operation of calculating the evaluation score of each channel belonging to the fourth channel set in the 5G WIFI channel list is similar to that in step S402, and details are not described herein.
  • Step S4052 After acquiring the evaluation scores of all the channels belonging to the fourth channel set in the 5G WIFI channel list, the WiFi device determines whether the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is greater than A fourth predetermined threshold associated with the fourth set of channels.
  • the fourth preset threshold is a lowest quality threshold of the fourth channel set, and in the channel belonging to the fourth channel set in the 5G WIFI channel list corresponding to the current area, if there is a channel whose evaluation score is lower than the fourth preset threshold Indicates that the link quality of the channel is not good and does not satisfy the minimum quality threshold of the fourth channel set.
  • the fourth preset threshold may be obtained by a method similar to the formula 1-2, and the fourth preset threshold may be customized according to specific requirements of the WiFi device.
  • the fourth preset threshold is set to be high, if the current working channel is selected in the channel belonging to the fourth channel set in the 5G WIFI channel list associated with the current region, the quality of the current working channel is relatively high. .
  • Step S4053 If the channel belonging to the fourth channel set in the 5G WIFI channel list, the highest evaluation score is greater than the fourth preset threshold associated with the fourth channel set, and belongs to the fifth in the 5G WIFI channel list. Among the channels of the four channel set, the channel with the highest evaluation score is selected as the working channel.
  • the current location of the WiFi device is the United States.
  • the highest score of the channel belonging to the fourth channel set (W53 channel set) in the corresponding 5G WIFI channel list in the United States is 52 channels, and the evaluation score of the 52 channel is assumed to be S (52), the fourth preset threshold associated with the fourth channel set is T(4), and if S(52)>T(4), 52 channels are selected as the current working channel of the WiFi device.
  • Step S4054 If the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is less than or equal to the fourth preset threshold associated with the fourth channel set, then the 5G WIFI channel is The channel belonging to the fourth channel set in the list does not have the required working channel, that is, the current working channel is not selected, and the process proceeds to step S406.
  • Step S406 Select a channel with the highest evaluation score as the working channel in the 5G WIFI channel list.
  • the channel belonging to the third channel set in the 5G WIFI channel list In the channel belonging to the first channel set in the 5G WIFI channel list, in the channel belonging to the second channel set in the 5G WIFI channel list, the channel belonging to the third channel set in the 5G WIFI channel list When the current working channel that meets the condition is not selected in the channel belonging to the fourth channel set in the 5G WIFI channel list, the channel with the best quality is directly selected as the current working channel in the 5G WIFI channel list. The best quality channel is selected by evaluating the score.
  • the WiFi device selects 64 channels as the current working channel.
  • Step S407 using the working channel to perform communication.
  • the WiFi device can preferentially select an outdoor, non-DFS channel as the current working channel.
  • the WiFi device violates the regulatory domain requirements of some countries when the WiFi device is working outdoors, and the user terminal that does not support the indoor channel cannot scan the AP, and avoids selecting the DFS channel during the radar signal detection phase. The user terminal cannot scan and access the AP, which affects the user experience.
  • the selected current working channel is the channel with the best channel quality in the first channel set or the second channel set or the third channel set or the fourth channel set, which ensures channel quality.
  • FIG. 6 is a device 60 provided by the present application.
  • the device 60 includes a processor 601 and a memory 602.
  • the processor 601 and the memory 602 are connected to each other through a bus.
  • the memory 602 includes, but is not limited to, a random access memory (English: Random Access Memory, RAM for short), a read-only memory (English: Read-Only Memory, ROM for short), and an erasable programmable read-only memory (English: Erasable Programmable Read Only Memory (EPROM), or Portable Read-Only Memory (CD-ROM), which is used for related commands and data.
  • a random access memory English: Random Access Memory, RAM for short
  • ROM Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • CD-ROM Portable Read-Only Memory
  • the processor 601 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 601 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • CPU Central Processing Unit
  • the processor 601 in the device 40 is configured to read the program code stored in the memory 602, and perform the following operations:
  • the first channel set is a W58 channel set
  • the highest evaluation score in the channel belonging to the first channel set in the 5G WIFI channel list is greater than the first preset threshold associated with the first channel set, selecting the first channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the device 60 can select the channel with the best quality as the current working channel in the outdoor, non-DFS channel, avoiding the selection of the indoor channel, affecting other devices when the device 60 is working outdoors, and avoiding selection.
  • the device 60 cannot access the AP during the detection of the radar signal.
  • the channel belonging to the first channel set in the 5G WIFI channel list the highest evaluation score is less than or equal to the first preset threshold associated with the first channel set, Calculating, in the case where there is a channel belonging to the second channel set in the 5G WIFI channel list, an evaluation score of each channel belonging to the second channel set in the 5G WIFI channel list, wherein each of the second channel sets
  • the channel is an outdoor channel and is a DFS channel.
  • the second channel set is a W56 channel set;
  • the highest evaluation score is less than or equal to a second preset threshold associated with the second channel set, Calculating, in a case where the channel belonging to the third channel set exists in the 5G WIFI channel list, an evaluation score of each channel belonging to the third channel set in the 5G WIFI channel list, wherein each of the third channel sets
  • the channel is an indoor channel and is a non-DFS channel.
  • the third channel set is a W52 channel set.
  • the highest evaluation score in the channel belonging to the third channel set in the 5G WIFI channel list is greater than the third preset threshold associated with the third channel set, selecting the third channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the highest evaluation score is less than or equal to a third preset threshold associated with the third channel set, Calculating, in a case where the channel belonging to the fourth channel set exists in the 5G WIFI channel list, an evaluation score of each channel belonging to the fourth channel set in the 5G WIFI channel list, wherein each of the fourth channel sets
  • the channels are indoor channels and are DFS channels.
  • the fourth channel set is a W53 channel set;
  • the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is greater than the fourth preset threshold associated with the fourth channel set, selecting the fourth channel set in the 5G WIFI channel list The channel with the highest score is evaluated in the channel as the current working channel.
  • the highest evaluation score is less than or equal to a fourth preset threshold associated with the fourth channel set, The channel with the highest evaluation score is selected as the current working channel in the 5G WIFI channel list.
  • the calculating the evaluation score of each channel belonging to the first channel set in the 5G WIFI channel list comprises: scanning each of the 5G WIFI channel lists belonging to the first channel set And obtaining an evaluation parameter of each channel, and calculating an evaluation score of each channel according to the evaluation parameter of each channel.
  • the specific implementation of the device 60 in this application may also correspond to the corresponding description of the method embodiment shown in FIG. 4.
  • the device 60 described in FIG. 6 can preferentially select the channel with the best quality as the current working channel in the outdoor, non-DFS channel, avoiding the selection of the indoor channel, and affecting other devices when the device 60 is working outdoors, while When the selection to the DFS channel is avoided, the AP cannot be accessed during the detection of the radar signal by the device 60.
  • FIG. 7 is a schematic structural diagram of still another apparatus 70 provided by the present application.
  • the apparatus 70 may include an obtaining unit 701, a calculating unit 702, a determining unit 703, and a selecting unit 704, which are described in detail below.
  • the obtaining unit 701 is configured to obtain a list of 5G WIFI channels corresponding to the current area.
  • the calculating unit 702 is configured to calculate, in a case where the channel belonging to the first channel set exists in the 5G WIFI channel list, an evaluation score of each channel belonging to the first channel set in the 5G WIFI channel list, where First letter
  • Each channel in the channel set is an outdoor channel and is a non-DFS channel;
  • the determining unit 703 is configured to determine whether the highest evaluation score in the channel belonging to the first channel set in the 5G WIFI channel list is greater than a first preset threshold associated with the first channel set;
  • the selecting unit 704 is configured to: if the highest evaluation score in the channel belonging to the first channel set in the 5G WIFI channel list is greater than a first preset threshold associated with the first channel set, select the 5G WIFI channel list The channel with the highest evaluation score among the channels belonging to the first channel set serves as the current working channel.
  • the device 70 can preferentially select the channel with the best quality as the current working channel in the outdoor, non-DFS channel, and avoid affecting other devices when the device 70 is working outdoors when the indoor channel is selected.
  • the device 70 cannot access the network during the detection of the radar signal.
  • the calculating unit 702 is further configured to: if the channel belonging to the first channel set in the 5G WIFI channel list, the highest evaluation score is less than or equal to the first associated with the first channel set. a preset threshold, in a case where a channel belonging to the second channel set exists in the 5G WIFI channel list, calculating an evaluation score of each channel belonging to the second channel set in the 5G WIFI channel list, wherein the Each channel in the two channel set is an outdoor channel and is a DFS channel;
  • the determining unit 703 is further configured to determine whether the highest evaluation score in the channel belonging to the second channel set in the 5G WIFI channel list is greater than a second preset threshold associated with the second channel set;
  • the selecting unit 704 is further configured to: if the highest evaluation score in the channel belonging to the second channel set in the 5G WIFI channel list is greater than a second preset threshold associated with the second channel set, select the 5G WIFI channel list Among the channels belonging to the second channel set, the channel with the highest evaluation score is the current working channel.
  • the calculating unit 702 is further configured to: if the channel belonging to the second channel set in the 5G WIFI channel list, the highest evaluation score is less than or equal to the second channel set. a preset threshold, in a case where a channel belonging to the third channel set exists in the 5G WIFI channel list, calculating an evaluation score of each channel belonging to the third channel set in the 5G WIFI channel list, where Each channel in the third channel set is an indoor channel and is a non-DFS channel;
  • the determining unit 703 is further configured to determine, in the channel belonging to the third channel set in the 5G WIFI channel list, whether the highest evaluation score is greater than a third preset threshold associated with the third channel set;
  • the selecting unit 704 is further configured to: if the highest evaluation score in the channel belonging to the third channel set in the 5G WIFI channel list is greater than a third preset threshold associated with the third channel set, select the 5G WIFI channel list Among the channels belonging to the third channel set, the channel with the highest evaluation score is the current working channel.
  • the calculating unit 702 is further configured to: if the channel belonging to the third channel set in the 5G WIFI channel list, the highest evaluation score is less than or equal to the third channel set. And determining, in a case where the channel belonging to the fourth channel set exists in the 5G WIFI channel list, calculating an evaluation score of each channel belonging to the fourth channel set in the 5G WIFI channel list, where Each channel in the fourth channel set is an indoor channel and is a DFS channel;
  • the determining unit 703 is further configured to determine whether the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is greater than a fourth preset threshold associated with the fourth channel set;
  • the selecting unit 704 if the highest evaluation score in the channel belonging to the fourth channel set in the 5G WIFI channel list is greater than the fourth preset threshold associated with the fourth channel set, selecting the 5G WIFI channel list belongs to the first Four channels The channel with the highest score is evaluated in the set channel as the current working channel.
  • the selecting unit 704 is further configured to: if the channel belonging to the fourth channel set in the 5G WIFI channel list, the highest evaluation score is less than or equal to the number associated with the fourth channel set. Four preset thresholds are selected in the 5G WIFI channel list as the current working channel.
  • the first channel set is a W58 channel set
  • the second channel set is a W56 channel set
  • the third channel set is a W52 channel set
  • the fourth channel set is W53 channel set.
  • the calculating the evaluation score of each channel belonging to the first channel set in the 5G WIFI channel list comprises: scanning each of the 5G WIFI channel lists belonging to the first channel set And obtaining an evaluation parameter of each channel, and calculating an evaluation score of each channel according to the evaluation parameter of each channel.
  • the device 70 described in FIG. 7 can preferentially select the channel with the best quality as the current working channel in the outdoor, non-DFS channel, avoiding the selection of the indoor channel, and affecting other devices when the device 70 is working outdoors, while When the selection to the DFS channel is avoided, the device 70 cannot access the network during the detection of the radar signal.
  • the device can preferentially select the channel with the best quality as the current working channel in the outdoor and non-DFS channels, and avoid violating certain when the device is working outdoors when avoiding the selection to the indoor channel.
  • the control domain of some countries requires that the user terminal that does not support the indoor channel cannot access the AP; and when the DFS channel is selected, the user terminal cannot access the AP during the detection of the radar signal.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center via wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state hard disk).

Abstract

本申请公开了一种信道选择方法及设备，包括：获取当前区域对应的5G WIFI信道列表；计算5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，第一信道集中的每个信道为室外非DFS信道；若5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于第一预设阈值，选择评估分数最高的信道作为当前工作信道。本申请，优先地在室外非DFS信道中选择质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备工作在室外的情况下违反某些国家的管制域要求，也避免不支持室内信道的用户终端无法扫描到AP，影响用户体验；避免选择到DFS信道时，设备在进行雷达信号的检测过程中用户终端无法扫描并接入AP。

Description

一种信道选择方法及设备
本申请要求于2016年12月1日提交中国专利局、申请号为201611091354.7、发明名称为“一种Wi-Fi信道选择的方法和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种信道选择方法及设备。
背景技术
随着无线通信技术的发展，无线保真(Wireless-Fidelity，WiFi)的应用越来越广泛。WiFi网络使用的2.4吉赫兹(Gigahertz，GHz)频段越来越拥挤，不能满足发展需求，各国政府陆续开放了5GHz(5150MHz-5825MHz)频段，5GHz频段相比2.4GHz频段有更高的数据传输效率。
一方面，5G频段中的信道分为室内信道和室外信道，其中，部分国家规定室内信道不能供工作在室外的设备使用，避免不支持室内信道的用户终端无法扫描到AP。
另一方面，5G频段中的信道分为动态频率选择(Dynamic Frequency Selection，DFS)信道和非DFS信道。5G频段和全球雷达系统的工作频段部分重合，为了避免工作在5G频段上的WiFi设备对雷达系统造成干扰，工作在DFS信道上的WiFi设备在启动和运行阶段都必须检查雷达信号，如果检测到雷达信号，则要切换信道以避免对雷达波的干扰。在雷达信号检测过程中，用户终端无法接入AP，无法接入网络。
图1是现有技术中的一种信道选择方法的流程图，具体包括：获取当前国家对应的5G WIFI信道列表；对所述5G WIFI信道列表中的每个信道进行扫描，获取每个信道的评估参数；对评估参数进行评分，并进行加权求和，计算每个信道的总分；选择总分最高的一个信道作为当前工作信道。
图2是现有技术中的另一种信道选择方法的流程图，具体包括：获取当前国家对应的5G WIFI信道列表；若所述5G WIFI信道列表中存在非DFS信道，在所述5G WIFI信道列表中的非DFS信道中随机选择一个信道作为当前工作信道；若所述5G WIFI信道列表中不存在非DFS信道，在所述5G WIFI信道列表中的DFS信道中随机选择一个信道作为当前工作信道。
图1及图2所示的信道选择方法的缺陷在于，当WiFi设备工作在室外时，若选择的当前工作信道为室内信道，会违反法律规定；若选择的当前工作信道为DFS信道，则WiFi设备在启动和运行阶段都要进行雷达信号检测，在雷达信号检测阶段，WiFi设备无法接入网络，导致接入WiFi设备的用户终端在检测阶段也无法接入AP，无法接入网络，严重影响用户体验。
发明内容
本申请实施例公开了一种信道选择方法及设备，能够优先在室外的、非DFS的信道中选择出当前工作信道。
第一方面，本申请提供一种信道选择方法，该方法包括：
获取当前区域对应的5G WIFI信道列表，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，所述第一信道集中的每个信道为室外信道且为非DFS信道，在一种可能的方案中，所述第一信道集为W58信道集；
若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，选择所述5G WIFI信道列表中属于第一信道集的信道中评估分数最高的信道作为当前工作信道。
通过执行上述步骤，能够在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在相应的设备工作在室外的情况下干扰其他设备，同时避免选择到DFS信道时，相应的设备在进行雷达信号的检测过程中无法接入网络。
结合第一方面，在第一方面的第一种可能的实现方式中，所述方法还包括：
若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数，其中，所述第二信道集中的每个信道为室外信道且为DFS信道，在一种可能的方案中，所述第二信道集为W56信道集；
若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集关联的第二预设阈值，选择所述5G WIFI信道列表中属于第二信道集的信道中评估分数最高的信道作为当前工作信道。
通过执行上述步骤，能够在当前区域对应的5G WIFI信道列表中的室外、DFS信道中选择出质量最优的信道作为当前工作信道，能够避免选择到室内信道时，在相应的设备工作在室外的情况下影响其他设备。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述方法还包括：
若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道，在一种可能的实施方式中，所述第三信道集为W52信道集；
若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集关联的第三预设阈值，选择所述5G WIFI信道列表中属于第三信道集的信道中评估分数最高的信道作为当前工作信道。
通过执行上述步骤，能够在当前区域对应的5G WIFI信道列表中的室内、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到DFS信道时，相应的设备在进行雷达信号的检测过程中无法接入网络。
结合第一方面的第二种可能的实施方式，在第一方面的第三种可能的实施方式中，所述方法还包括：
若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数，其中，所述第四信道集中的每个信道为室内信道且为DFS信道，在一 种可能的方案中，所述第四信道集为W53信道集；
若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，选择所述5G WIFI信道列表中属于第四信道集的信道中评估分数最高的信道作为当前工作信道。
通过执行上述步骤，能够在当前区域对应的5G WIFI信道列表中的室外非DFS信道、室内非DFS信道、室外DFS信道的信道质量都不满足相应的信道质量门限的情况下，在室内DFS信道中选择出质量最优的信道作为当前工作信道，能够保证该当前工作信道的信道质量。
结合第一方面的第三种可能的实施方式，在第一方面的第四种可能的实施方式中，所述方法还包括：
若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中选择评估分数最高的信道作为当前工作信道。
通过执行上述步骤，能够在当前区域对应的5G WIFI信道列表中的所有信道中选择出质量最优的信道作为当前工作信道，保证该当前工作信道的质量。
结合第一方面，在第一方面的第五种可能的实施方式中，所述计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数包括：
扫描所述5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数；根据所述每一个信道的评估参数，分别计算所述每一个信道的各个评估参数的评分；根据所述每一个信道中的每个评估参数的评分和所述每个评估参数分别对应的权重因子，计算所述每一个信道的评估分数。
在一种可能的方案中，通过公式
Figure PCTCN2017074768-appb-000001
计算所述每一个信道的评估分数，其中，S(i)为当前区域对应的5G WIFI信道列表中属于第一信道集的信道中，信道号为i的信道的评估分数，通过分别对i取该5G WIFI信道列表中属于第一信道集的信道对应的信道号来获取当前区域对应的5G WIFI信道列表中属于第一信道集的各个信道的评估分数；a1i为第一评估参数在i信道中的评分，a2i为第二评估参数在i信道中的评分，aNi为第N评估参数在i信道中的评分；f1为第一评估参数对应的权重因子，f2为第一评估参数对应的权重因子，fN为第一评估参数对应的权重因子。
第二方面，本申请提供一种设备，所述设备包括处理器和存储器，其中：
所述存储器用于存储指令和数据；
所述处理器，用于执行第一方面和第一方面各个可能的实现方式中的任意一种方法。
第三方面，本申请提供一种设备，所述设备包括用于执行本申请第一方面任一实现方式的部分或全部步骤的功能单元。
第四方面，本申请提供了一种计算机可读存储介质，所述计算机可读存储介质存储有 指令，当其在计算机上运行时，使得计算机执行上述第一方面和第一方面各个可能的实现方式中的任意一种方法。
第五方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
通过实施本申请，设备能够优先地在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备工作在室外的情况下干扰其他设备，同时避免选择到DFS信道时，设备在进行雷达信号的检测过程中无法接入网络。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是现有技术中一种信道选择方法的流程示意图；
图2是现有技术中另一种信道选择方法的流程示意图；
图3是本申请提供的一种网络系统的架构示意图；
图4是本申请提供的一种信道选择方法的流程示意图；
图5-1是本申请提供的判断能否在第一信道集中选择出当前工作信道的流程示意图；
图5-2是本申请提供的判断能否在第二信道集中选择出当前工作信道的流程示意图；
图5-3是本申请提供的判断能否在第三信道集中选择出当前工作信道的流程示意图；
图5-4是本申请提供的判断能否在第四信道集中选择出当前工作信道的流程示意图；
图6是本申请提供的一种设备的结构示意图；
图7是本申请提供的又一种设备的结构示意图。
具体实施方式
下面将结合附图对本申请中的技术方案进行描述。
请参照图3，图3是本发明的一个实施例提供的一种网络系统的架构示意图，如图3所示，所述网络系统包括接入设备110、WiFi设备120和用户终端130。
其中，接入设备110是WiFi设备120进入网络的接入点，供WiFi设备接入网络并访问网络资源。接入设备110可以是基站(Base Station，BS)，也可以是无线接入点(The wireless access point，无线AP)。
WiFi设备120连接接入设备110以接入网络。WiFi设备包括但不限于：便携式宽带无线(Mobile-WiFi，MIFI)设备、路由器、交换机等。WiFi设备上配置有WiFi芯片，WiFi芯片可支持WiFi设备120工作在5G频段，并选择5G频段中的一个信道作为工作信道。WiFi设备120可连接多个用户终端130，WiFi设备120及其连接的多个用户终端130在进行数据通信时，使用WiFi芯片选择的工作信道传输信息及数据。
用户终端130是配置有WiFi通信模块、并支持5GWiFi的设备，用户终端130通过WiFi通信模块可接入WiFi设备120，通过WiFi设备120接入接入设备110以接入网络，从而和其他的设备进行数据通信。用户终端130包括但不限于：智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑、笔记本电脑、移动互联网设备(Mobile Internet Devices， MID)或穿戴式设备(如智能手表、智能手环等)等。
其中，WiFi设备120工作时，使用5G频段和接入设备110、用户终端130传输信息或者数据。5G频段下根据频率的不同划分为若干个信道，请参见表1，表1为可用的5G频段部分信道划分以及部分区域可用信道示意图。
首先，按照频率的不同，5G频段中的信道可以划分为W52信道集、W53信道集、W56信道集、W58信道集。频率在5.2GHz左右的信道统称为W52信道集，W52信道集包括{36信道、40信道、44信道、48信道}；频率在5.3GHz左右的信道统称为W53信道集，W53信道集包括{52信道、56信道、60信道、64信道}；频率在5.6GHz左右的信道统称为W56信道集，W56信道集包括{100信道、104信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道}；频率在5.8GHz左右的信道统称为W58信道集，W58信道集包括{149信道、153信道、157信道、161信道、165信道}。
其中，W52信道集中的各个信道均为室内非DFS信道，W53信道集中的各个信道均为室内DFS信道，W56信道集中的各个信道均为室外DFS信道，W58信道集中的各个信道均为室外非DFS信道。其中，室内信道只能供工作在室内的WiFi设备使用，不能供工作在室外的WiFi设备使用；DFS信道和全球雷达系统的工作频段重合，工作在DFS信道上的WiFi设备在启动和运行阶段都要进行雷达波检测，并且在检测过程中，工作在DFS信道上的WiFi设备下接入的用户终端无法接入AP，无法使用WiFi。
虽然5G频段可划分为多个信道，但并不是5G频段中的每一个信道都可以使用。由于5G频段与全球雷达系统的频段部分重合，为了安全考虑，每个国家或地区开放的可支持使用的5G频段有所不同，具体可参见表1所示。
Figure PCTCN2017074768-appb-000002
Figure PCTCN2017074768-appb-000003
表1
请参见图4，图4为本申请提供的一种信道选择方法的流程示意图，该方法包括：
步骤S401：获取当前区域对应的5G WIFI信道列表。
具体的，该当前区域对应的5G WIFI信道列表是指WiFi设备所在区域的法律法规所规定的可允许使用的5G信道的合集。不同的区域开放的允许使用的5G信道是不同的，例如，美国开放的允许使用的5G信道包括{36信道、40信道、44信道、48信道、52信道、56信道、60信道、64信道、100信道、104信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道、149信道、153信道、157信道、161信道、165信道}，中国开放的允许使用的5G信道包括{36信道、40信道、44信道、48信道、52信道、56信道、60信道、64信道、149信道、153信道、157信道、161信道、165信道}。具体情况可参见表1，在表1中示出了部分区域开放的可使用的5G信道。由于不同的区域开放的允许使用的5G信道是不同的，WiFi设备在不同的区域使用时首先要获取当前区域可用的5G WIFI信道列表，然后才能在该当前区域允许使用的信道中选择出当前工作信道。
在一种可选的方案中，WiFi设备中存储各个区域可用的5G WIFI信道列表，可以通过确定WiFi设备处于的区域，来确定当前WiFi设备可用的5G信道的列表。例如可以根据WiFi设备当前所在区域的标识，获取当前所在区域可使用的5G WIFI信道列表，其中，该当前所在区域的标识可以是该区域的英文缩写、国家/地区码、国家/地区区号等可以唯一确定该区域的标识。以WiFi设备在美国使用为例，美国的国家码为USA，则WiFi设备可以通过该国家码USA确定美国可用的5G WIFI信道列表为{36信道、40信道、44信道、48信道、52信道、56信道、60信道、64信道、100信道、104信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道、149信道、153信道、157信道、161信道、165信道}。
在另一种可选的方案中，WiFi设备也可以从和所述WiFi设备连接的其他设备中获取当前区域可用的5G WIFI信道列表，例如WiFi设备可以通过发送信道列表请求从连接的无线AP获取该当前区域可用的5G WIFI信道列表。
步骤S402、判断在所述5G WIFI信道列表中属于第一信道集的信道中，是否有符合要求的工作信道。
现结合图5-1来描述如何判断在所述5G WIFI信道列表中属于第一信道集的信道中， 是否有符合要求的工作信道，即能否选择出当前工作信道，图5-1为本申请提供的一种判断能否在第一信道集中选择出当前工作信道的流程示意图，包括以下步骤：
具体的，WiFi设备首先要判断在所述5G WIFI信道列表中是否存在属于第一信道集的信道，其中，所述第一信道集中的每个信道为室外信道且为非DFS信道。判断在所述5G WIFI信道列表中是否存在属于第一信道集的信道相当于对该5G WIFI信道列表和第一信道集做交集运算，查找出既在该5G WIFI信道列表中、又属于第一信道集的信道。
在一种可能的方案中，该第一信道集为W58信道集，即该第一信道集为{149信道、153信道、157信道、161信道、165信道}。以WiFi设备当前所在区域为美国为例，在美国对应的5G WIFI信道列表{36信道、40信道、44信道、48信道、52信道、56信道、60信道、64信道、100信道、104信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道、149信道、153信道、157信道、161信道、165信道}中，存在属于第一信道集的信道，即{149信道、153信道、157信道、161信道、165信道}。
步骤S4021、在所述5G WIFI信道列表中存在属于第一信道集的信道的情况下，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，该评估分数直接反映每个信道的链路质量。
在所述5G WIFI信道列表中不存在属于第一信道集的信道的情况下，则进入步骤S403。在一种可能的方案中，可以通过以下方法计算每个信道的评估分数：
WiFi设备扫描当前区域可用的5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数。WiFi设备可以通过主动扫描(Active Scanning)或者被动扫描(Passive Scanning)来扫描该5G WIFI信道列表中属于第一信道集的每一个信道，并获取该每一个信道的评估参数。假设当前国家为美国，WiFi设备扫描美国对应的5G列表中属于第一信道集的信道，即{149信道、153信道、157信道、161信道、165信道}，以WiFi设备扫描149信道为例。WiFi设备主动扫描149信道时，通过带冲突检测的载波监听多路访问(Carrier Sense Multiple Access with Collision Detection，CSMA/CD)获取149信道的使用权，并发送一个包含自身媒体接入控制MAC地址的广播探测帧，并启动探测定时器，WiFi设备在最大信道等待时延(Max Channel Time)内等待探测回复，记录在最大信道等待时延内接收到的所有回复，从该回复中获取149信道的评估参数。WiFi设备在探测定时器超时后切换到下一个信道，并重复上述操作，直到扫描完美国对应的5G列表中属于第一信道集的所有信道。
WiFi设备被动扫描149信道时，可以通过接收无线AP占用149信道发送的beacon帧，并解析该beacon帧以获取149信道的评估参数。WiFi设备可通过该被动扫描的方法，获取美国对应的5G WIFI信道列表中属于第一信道集的所有信道的评估参数。
所述评估参数可以包括信道上正在工作的BS/无线AP的数量、BS/无线AP在该信道上发送数据持续的时间、该信道上基本服务集(Basic Service Set，BSS)个数、该信道上基本服务集发送数据可持续的时间、该信道上某一个无线接入点工作时受到其他的无线接入点的干扰情况、该信道上收到的循环冗余校验(Cyclic Redundancy Check，CRC)错包数、 该信道上的背景噪声等反映信道质量的参数。WiFi设备获取的每个信道的评估参数的具体的数量和种类可以是预先设置的，也可以根据WiFi设备当前所在的国家、用户需求等具体情况进行相应的调整。
根据所述每一个信道的评估参数，分别计算所述每一个信道的各个评估参数的评分。假设每个信道的评估参数有N个，在获取当前区域对应的5G WIFI信道列表中属于第一信道集的每一个信道的N个评估参数后，分别计算每一个信道中的N个评估参数的评分。WiFi设备根据每一个信道中的各个评估参数的具体情况，计算每一个信道中的N个评估参数的评分。举例来说，在一种可选的方案中，假设使用100分制，信道上正在工作的无线AP的数量这一评估参数的评分规则可以如表2所示：
Figure PCTCN2017074768-appb-000004
表2
以149信道为例，假设正在149信道上工作的无线接入点有a个，a落入第七预设范围内，那么在149信道上，该评估参数(信道上正在工作的无线AP的数量)的评分就为70分。表2为评估参数的评分示意表，具体的各个评估参数的评分情况根据WiFi设备当前所在的国家、用户需求等具体情况可以相应的变化；表2仅示出了信道上正在工作的无线AP的数量这一评估参数的评分规则，信道中的其他的各个评估参数的评分规则也是类似的，此处不再赘述。
根据所述每一个信道中的每个评估参数的评分和所述每个评估参数分别对应的权重因子，计算所述每一个信道的评估分数。具体的，本申请对当前区域对应的5G WIFI信道列表中属于第一信道集的每一个信道，都获取相同数量和种类的评估参数。对同一评估参数，都根据该评估参数的重要程度分配相应的权重因子，该权重因子对于所有的信道都是相同的。
在一种可选的方案中，可通过公式1-1计算该评估分数，公式1-1如下：
Figure PCTCN2017074768-appb-000005
S(i)为WiFi设备当前区域对应的5G WIFI信道列表中属于第一信道集的信道中，信道号为i的信道的评估分数，通过分别对i取该5G WIFI信道列表中属于第一信道集的信道对应的信道号来获取当前区域对应的5G WIFI信道列表中属于第一信道集的各个信道的评估分数；a1i为第一评估参数在i信道中的评分，a2i为第二评估参数在i信道中的评分，aNi为第N评估参数在i信道中的评分；f1为第一评估参数对应的权重因子，f2为第一评估参数对应的权重因子，fN为第一评估参数对应的权重因子。
公式1-1相当于对i信道中的评估参数进行加权求和，能够反映WiFi设备当前所在区域对应的5G WIFI信道列表中属于第一信道集的i信道的信道质量。
步骤S4022、在计算得到所述5G WIFI信道列表中属于第一信道集的信道的评估分数 后，WiFi设备判断所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数是否大于与所述第一信道集关联的第一预设阈值。
步骤S4023、若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，在所述5G WIFI信道列表中属于第一信道集的信道中，选择评估分数最高的信道作为工作信道。
该第一预设阈值为第一信道集的最低质量门限，在当前区域对应的5G WIFI信道列表中属于第一信道集的信道中，若有评估分数低于该第一预设阈值的信道时，说明该信道的链路质量不佳，不满足第一信道集的最低质量门限。
在一种可选的方案中，该预设阈值可以通过公式1-2得到，公式1-2如下：
Figure PCTCN2017074768-appb-000006
T(1)为第一信道集对应的第一预设阈值，a1为在第一信道集中满足最低信道质量时的第一评估参数的评分，a2为在第一信道集中满足最低信道质量时的第二评估参数的评分，a3为在第一信道集中满足最低信道质量时的第N评估参数的评分；f1为第一评估参数对应的权重因子，f2为第二评估参数对应的权重因子，fN为第N评估参数对应的权重因子。公式1-2相当于对第一信道集中满足最低信道质量时的各个评估参数进行加权求和，能够反映该第一信道集的最低质量门限。
该第一预设阈值可以根据WiFi设备的具体需求定制。当该第一预设阈值设置得较高时，若在当前区域对应的5G WIFI信道列表中属于第一信道集的信道中选择出了当前工作信道，则该当前工作信道的质量也相对较高。
具体的，以当前区域为美国为例，假设美国对应的5G WIFI信道列表中属于第一信道集(W58信道集)的信道中评分最高的是149信道，假设149信道的评估分数为S(149)，假设第一信道集关联的第一预设阈值为T(1)，若S(149)＞T(1)，则选择149信道作为WiFi设备的当前工作信道。
步骤S4024、若在所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，则在所述5G WIFI信道列表中属于第一信道集的信道中，没有选择出工作信道，进入步骤S403。
步骤S403、判断在所述5G WIFI信道列表中属于第二信道集的信道中，是否有符合要求的工作信道。
现结合图5-2来描述如何判断在所述5G WIFI信道列表中属于第二信道集的信道中，是否有符合要求的工作信道，即能否选择出当前工作信道，图5-2为本申请提供的一种判断能否在第二信道集中选择出当前工作信道的流程图，包括以下步骤：
首先判断在所述5G WIFI信道列表中是否存在属于第二信道集的信道，其中，所述第二信道集中的每个信道为室外信道且为DFS信道。判断在所述5G WIFI信道列表中是否存在属于第二信道集的信道相当于对该5G WIFI信道列表和第二信道集做交集运算，查找出既在该5G WIFI信道列表中、又属于第二信道集的信道。
在一种可能的方案中，该第二信道集为W56信道集，即该第二信道集为{100信道、104 信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道}。以WiFi设备当前所在区域为美国为例，在美国对应的5G WIFI信道列表中存在属于第二信道集的信道{100信道、104信道、108信道、112信道、116信道、120信道、124信道、128信道、132信道、136信道、140信道、144信道}。
步骤S4031、在所述5G WIFI信道列表中存在属于第二信道集的信道的情况下，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数。值得说明的是，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数的操作和步骤S402中的原理类似，在此不赘述。
步骤S4032、在获取所述5G WIFI信道列表中属于第二信道集的所有信道的评估分数后，WiFi设备判断所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数是否大于与所述第二信道集关联的第二预设阈值。
该第二预设阈值为第二信道集的最低质量门限，在当前区域对应的5G WIFI信道列表中属于第二信道集的信道中，若有评估分数低于该第二预设阈值的信道时，说明该信道的链路质量不佳，不满足第二信道集的最低质量门限。
在一种可选的方案中，该第二预设阈值可以通过和公式1-2类似的方法得到，该第二预设阈值可以根据WiFi设备的具体需求定制。当该第二预设阈值设置得较高时，若在当前区域对应的5G WIFI信道列表中属于第二信道集的信道中选择出了当前工作信道，则该当前工作信道的质量也相对较高。
步骤S4033、若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集对应的第二预设阈值，WiFi设备在所述5G WIFI信道列表中属于第二信道集的信道中，选择评估分数最高的信道作为工作信道。
具体的，以WiFi设备当前所在区域为美国为例，假设美国对应的5G WIFI信道列表中属于第二信道集(W56信道集)的信道中评分最高的是100信道，假设100信道的评估分数为S(100)，第二信道集关联的第二预设阈值为T(2)，若S(100)＞T(2)，则选择100信道作为WiFi设备的当前工作信道。
步骤S4034、若在所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，则在所述5G WIFI信道列表中属于第二信道集的信道中没有符合要求的工作信道，即没有选择出当前工作信道，进入步骤S404。
步骤S404、判断在所述5G WIFI信道列表中属于第三信道集的信道中，是否有符合要求的工作信道。
现结合图5-3描述如何判断在所述5G WIFI信道列表中属于第三信道集的信道中，是否有符合要求的工作信道，即能否选择出当前工作信道，图5-3为本申请提供的一种判断能否在第三信道集中选择出当前工作信道的流程示意图，包括以下步骤：
首先判断在所述5G WIFI信道列表中是否存在属于第三信道集的信道，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道。判断在所述5G WIFI信道列表中是否存在属于第三信道集的信道相当于对该5G WIFI信道列表和第三信道集做交集运算，查找出既在该5G WIFI信道列表中、又属于第三信道集的信道。
在一种可能的方案中，该第三信道集为W52信道集，即该第三信道集为{36信道、40信道、44信道、48信道}。以WiFi设备当前所在区域为美国为例，在美国对应的5G WIFI信道列表中存在属于该第三信道集的信道{36信道、40信道、44信道、48信道}。
步骤S4041、在所述5G WIFI信道列表中存在属于第三信道集的信道的情况下，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数。值得说明的是，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数的操作和步骤S402的原理类似，在此不赘述。
步骤S4042、在计算得到所述5G WIFI信道列表中属于第三信道集的所有信道的评估分数后，WiFi设备判断所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数是否大于与所述第三信道集关联的第三预设阈值。
该第三预设阈值为第三信道集的最低质量门限，在当前区域对应的5G WIFI信道列表中属于第三信道集的信道中，若有评估分数低于该第三预设阈值的信道时，说明该信道的链路质量不佳，不满足第三信道集的最低质量门限。
在一种可选的方案中，该第三预设阈值可以通过和公式1-2类似的方法得到，该第三预设阈值可以根据WiFi设备的具体需求定制。当该第三预设阈值设置得较高时，若在当前区域关联的5G WIFI信道列表中属于第三信道集的信道中选择出了当前工作信道，则该当前工作信道的质量也相对较高。
步骤S4043、若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集对应的第三预设阈值，在所述5G WIFI信道列表中属于第三信道集的信道中选择评估分数最高的信道作为工作信道。
具体的，以WiFi设备当前所在区域为美国为例，假设美国对应的5G WIFI信道列表中属于第三信道集(W52信道集)的信道中评分最高的是36信道，假设36信道的评估分数为S(36)，第三信道集关联的第三预设阈值为T(3)，若S(36)＞T(3)，则选择36信道作为WiFi设备的当前工作信道。
步骤S4044、若在所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，则在所述5G WIFI信道列表中属于第三信道集的信道中没有符合要求的工作信道，即没有选择出当前工作信道，进入步骤S405。
步骤S405、判断在所述5G WIFI信道列表中属于第四信道集的信道中，是否有符合要求的工作信道。
现结合图5-4描述如何判断在所述5G WIFI信道列表中属于第四信道集的信道中，是否有符合要求的工作信道，即能否选择出当前工作信道，图5-4为本申请提供的一种判断能否在第四信道集中选择出当前工作信道的流程示意图，包括以下步骤：
首先判断在所述5G WIFI信道列表中是否存在属于第四信道集的信道，其中，所述第四信道集中的每个信道为室内信道且为DFS信道。判断在所述5G WIFI信道列表中是否存在属于第四信道集的信道相当于对该5G WIFI信道列表和第四信道集做交集运算，查找出既在该5G WIFI信道列表中、又属于第四信道集的信道。
在一种可能的方案中，该第四信道集为W53信道集，即该第四信道集为{52信道、56 信道、60信道、64信道}。以WiFi设备当前所在区域为美国为例，在美国对应的5G WIFI信道列表中存在属于该第四信道集的信道{52信道、56信道、60信道、64信道}。
步骤S4051、在所述5G WIFI信道列表中存在属于第四信道集的信道的情况下，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数。值得说明的是，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数的操作和步骤S402中类似，在此不赘述。
步骤S4052、在获取所述5G WIFI信道列表中属于第四信道集中的所有信道的评估分数后，WiFi设备判断所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数是否大于与所述第四信道集关联的第四预设阈值。
该第四预设阈值为第四信道集的最低质量门限，在当前区域对应的5G WIFI信道列表中属于第四信道集的信道中，若有评估分数低于该第四预设阈值的信道时，说明该信道的链路质量不佳，不满足第四信道集的最低质量门限。
在一种可选的方案中，该第四预设阈值可以通过和公式1-2类似的方法得到，该第四预设阈值可以根据WiFi设备的具体需求定制。当该第四预设阈值设置得较高时，若在当前区域关联的5G WIFI信道列表中属于第四信道集的信道中选择出了当前工作信道，则该当前工作信道的质量也相对较高。
步骤S4053、若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中属于第四信道集的信道中选择评估分数最高的信道作为工作信道。
具体的，以WiFi设备当前所在区域为美国为例，假设美国对应的5G WIFI信道列表中属于第四信道集(W53信道集)的信道中评分最高的是52信道，假设52信道的评估分数为S(52)，第四信道集关联的第四预设阈值为T(4)，若S(52)＞T(4)，则选择52信道作为WiFi设备的当前工作信道。
步骤S4054、若在所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，则在所述5G WIFI信道列表中属于第四信道集的信道中没有符合要求的工作信道，即没有选择出当前工作信道，进入步骤S406。
步骤S406、在所述5G WIFI信道列表中选择评估分数最高的信道作为工作信道。
具体的，在所述5G WIFI信道列表中属于第一信道集的信道中、所述5G WIFI信道列表中属于第二信道集的信道中、所述5G WIFI信道列表中属于第三信道集的信道中、所述5G WIFI信道列表中属于第四信道集的信道中，都没有选择出符合条件的当前工作信道时，在该5G WIFI信道列表中直接选择质量最好的信道作为当前工作信道，可以通过评估分数来选择出质量最好的信道。
以WiFi设备当前所在区域为美国为例，假设美国允许使用的5G WIFI信道列表中评估分数最高的信道是64信道，则WiFi设备选择64信道作为当前工作信道。
步骤S407、使用工作信道进行通信。
在图4所描述的方法中，WiFi设备能够优先选择室外、非DFS信道作为当前工作信道， 避免选择到室内信道时，在WiFi设备工作在室外的情况下违反某些国家的管制域要求，避免不支持室内信道的用户终端无法扫描到AP，同时避免选择到DFS信道、在雷达信号检测阶段用户终端无法扫描并接入AP，影响用户体验。并且，选择的当前工作信道是第一信道集或第二信道集或第三信道集或第四信道集中信道质量最好的信道，保证了信道质量。
上述详细阐述了本申请的方法，为了便于更好地实施本申请的上述方案，相应地，下面提供了本申请的装置。
请参见图6，图6是本申请提供的一种设备60，该设备60包括处理器601和存储器602，所述处理器601和存储器602通过总线相互连接。
存储器602包括但不限于是随机存储记忆体(英文：Random Access Memory，简称：RAM)、只读存储器(英文：Read-Only Memory，简称：ROM)、可擦除可编程只读存储器(英文：Erasable Programmable Read Only Memory，简称：EPROM)、或便携式只读存储器(英文：Compact Disc Read-Only Memory，简称：CD-ROM)，该存储器602用于相关指令及数据。
处理器601可以是一个或多个中央处理器(英文：Central Processing Unit，简称：CPU)，在处理器601是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该设备40中的处理器601用于读取所述存储器602中存储的程序代码，执行以下操作：
获取当前区域对应的5G WIFI信道列表；
在所述5G WIFI信道列表中存在属于第一信道集的信道的情况下，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，所述第一信道集中的每个信道为室外信道且为非DFS信道，在一种可能的方案中，所述第一信道集为W58信道集；
判断所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数是否大于与所述第一信道集关联的第一预设阈值；
若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，选择所述5G WIFI信道列表中属于第一信道集的信道中评估分数最高的信道作为当前工作信道。
通过执行上述操作，设备60能够在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备60工作在室外的情况下影响其他设备，同时避免选择到DFS信道时，设备60在进行雷达信号的检测过程中无法接入AP。
在一种可选的方案中，若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，在所述5G WIFI信道列表中存在属于第二信道集的信道的情况下，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数，其中，所述第二信道集中的每个信道为室外信道且为DFS信道，在一种可能的方案中，所述第二信道集为W56信道集；
判断所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数是否大于与所述第二信道集关联的第二预设阈值；
若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集关联的第二预设阈值，选择所述5G WIFI信道列表中属于第二信道集的信道中评 估分数最高的信道作为当前工作信道。
在又一种可选的方案中，若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，在所述5G WIFI信道列表中存在属于第三信道集的信道的情况下，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道，在一种可能的实施方式中，所述第三信道集为W52信道集；
判断所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数是否大于与所述第三信道集关联的第三预设阈值；
若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集关联的第三预设阈值，选择所述5G WIFI信道列表中属于第三信道集的信道中评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，在所述5G WIFI信道列表中存在属于第四信道集的信道的情况下，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数，其中，所述第四信道集中的每个信道为室内信道且为DFS信道，在一种可能的方案中，所述第四信道集为W53信道集；
判断所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数是否大于与所述第四信道集关联的第四预设阈值；
若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，选择所述5G WIFI信道列表中属于第四信道集的信道中评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中选择评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，所述计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数包括：扫描所述5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数；根据所述每一个信道的评估参数，计算所述每一个信道的评估分数。
本申请中的设备60的具体实现还可以对应参照图4所示的方法实施例的相应描述。
图6所描述的设备60能够优先地在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备60工作在室外的情况下影响其他设备，同时避免选择到DFS信道时，在设备60进行雷达信号的检测过程中无法接入AP。
请参见图7，图7是本申请提供的又一种设备70的结构示意图，该设备70可以包括获取单元701、计算单元702、判断单元703和选择单元704，详细描述如下。
获取单元701用于获取当前区域对应的5G WIFI信道列表；
计算单元702用于在所述5G WIFI信道列表中存在属于第一信道集的信道的情况下，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，所述第一信 道集中的每个信道为室外信道且为非DFS信道；
判断单元703用于判断所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数是否大于与所述第一信道集关联的第一预设阈值；
选择单元704用于若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，选择所述5G WIFI信道列表中属于第一信道集的信道中评估分数最高的信道作为当前工作信道。
通过运行上述单元，设备70能够优先地在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备70工作在室外的情况下影响其他设备，同时避免选择到DFS信道时，在设备70进行雷达信号的检测过程中无法接入网络。
在一种可选的方案中，计算单元702还用于若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，在所述5G WIFI信道列表中存在属于第二信道集的信道的情况下，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数，其中，所述第二信道集中的每个信道为室外信道且为DFS信道；
判断单元703还用于判断所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数是否大于与所述第二信道集关联的第二预设阈值；
选择单元704还用于若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集关联的第二预设阈值，选择所述5G WIFI信道列表中属于第二信道集的信道中评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，计算单元702还用于若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，在所述5G WIFI信道列表中存在属于第三信道集的信道的情况下，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道；
判断单元703还用于判断所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数是否大于与所述第三信道集关联的第三预设阈值；
选择单元704还用于若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集关联的第三预设阈值，选择所述5G WIFI信道列表中属于第三信道集的信道中评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，计算单元702还用于若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，在所述5G WIFI信道列表中存在属于第四信道集的信道的情况下，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数，其中，所述第四信道集中的每个信道为室内信道且为DFS信道；
判断单元703还用于判断所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数是否大于与所述第四信道集关联的第四预设阈值；
选择单元704若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，选择所述5G WIFI信道列表中属于第四信道 集的信道中评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，选择单元704还用于若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中选择评估分数最高的信道作为当前工作信道。
在又一种可选的方案中，所述第一信道集为W58信道集，所述第二信道集为W56信道集，所述第三信道集为W52信道集，所述第四信道集为W53信道集。
在又一种可选的方案中，所述计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数包括：扫描所述5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数；根据所述每一个信道的评估参数，计算所述每一个信道的评估分数。
图7所描述的设备70能够优先地在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备70工作在室外的情况下影响其他设备，同时避免选择到DFS信道时，在设备70进行雷达信号的检测过程中无法接入网络。
综上所述，通过实施本申请，设备能够优先地在室外、非DFS信道中选择出质量最优的信道作为当前工作信道，避免选择到室内信道时，在设备工作在室外的情况下违反某些国家的管制域要求，避免不支持室内信道的用户终端无法接入AP；同时避免选择到DFS信道时，在设备进行雷达信号的检测过程中用户终端无法接入AP。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk)等。

Claims (16)

  1. 一种信道选择方法，其特征在于，包括：
    获取当前区域对应的5G WIFI信道列表；
    在所述5G WIFI信道列表中存在属于第一信道集的信道的情况下，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，所述第一信道集中的每个信道为室外信道且为非动态频率选择(Dynamic Frequency Selection，DFS)信道；
    判断所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数是否大于与所述第一信道集关联的第一预设阈值；
    若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，选择所述5G WIFI信道列表中属于第一信道集的信道中评估分数最高的信道作为当前工作信道。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，在所述5G WIFI信道列表中存在属于第二信道集的信道的情况下，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数，其中，所述第二信道集中的每个信道为室外信道且为DFS信道；
    判断所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数是否大于与所述第二信道集关联的第二预设阈值；
    若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集关联的第二预设阈值，选择所述5G WIFI信道列表中属于第二信道集的信道中评估分数最高的信道作为当前工作信道。
  3. 根据权利要求2所述的方法，其特征在于，还包括：
    若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，在所述5G WIFI信道列表中存在属于第三信道集的信道的情况下，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道；
    判断所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数是否大于与所述第三信道集关联的第三预设阈值；
    若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集关联的第三预设阈值，选择所述5G WIFI信道列表中属于第三信道集的信道中评估分数最高的信道作为当前工作信道。
  4. 根据权利要求3所述的方法，其特征在于，还包括：
    若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，在所述5G WIFI信道列表中存在属于第四信道集的信道的情况下，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数，其 中，所述第四信道集中的每个信道为室内信道且为DFS信道；
    判断所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数是否大于与所述第四信道集关联的第四预设阈值；
    若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，选择所述5G WIFI信道列表中属于第四信道集的信道中评估分数最高的信道作为当前工作信道。
  5. 根据权利要求4所述的方法，其特征在于，还包括：
    若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中选择评估分数最高的信道作为当前工作信道。
  6. 根据权利要求1-5所述的方法，其特征在于，
    所述第一信道集为W58信道集，所述第二信道集为W56信道集，所述第三信道集为W52信道集，所述第四信道集为W53信道集。
  7. 根据权利要求1所述的方法，其特征在于，所述计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数包括：
    扫描所述5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数；
    根据所述每一个信道的评估参数，计算所述每一个信道的评估分数。
  8. 一种设备，其特征在于，所述设备包括处理器和存储器，其中：
    所述存储器用于存储指令和数据；
    所述处理器，用于读取所述存储器中存储的指令和数据，执行如下操作：
    获取当前区域对应的5G WIFI信道列表；
    在所述5G WIFI信道列表中存在属于第一信道集的信道的情况下，计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数，其中，所述第一信道集中的每个信道为室外信道且为非DFS信道；
    判断所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数是否大于与所述第一信道集关联的第一预设阈值；
    若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数大于与所述第一信道集关联的第一预设阈值，选择所述5G WIFI信道列表中属于第一信道集的信道中评估分数最高的信道作为当前工作信道。
  9. 根据权利要求8所述的设备，其特征在于，所述处理器还用于：
    若所述5G WIFI信道列表中属于第一信道集的信道中，最高的评估分数小于或等于与所述第一信道集关联的第一预设阈值，在所述5G WIFI信道列表中存在属于第二信道集的 信道的情况下，计算所述5G WIFI信道列表中属于第二信道集的每个信道的评估分数，其中，所述第二信道集中的每个信道为室外信道且为DFS信道；
    判断所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数是否大于与所述第二信道集关联的第二预设阈值；
    若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数大于与所述第二信道集关联的第二预设阈值，选择所述5G WIFI信道列表中属于第二信道集的信道中评估分数最高的信道作为当前工作信道。
  10. 根据权利要求9所述的设备，其特征在于，所述处理器还用于：
    若所述5G WIFI信道列表中属于第二信道集的信道中，最高的评估分数小于或等于与所述第二信道集关联的第二预设阈值，在所述5G WIFI信道列表中存在属于第三信道集的信道的情况下，计算所述5G WIFI信道列表中属于第三信道集的每个信道的评估分数，其中，所述第三信道集中的每个信道为室内信道且为非DFS信道；
    判断所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数是否大于与所述第三信道集关联的第三预设阈值；
    若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数大于与所述第三信道集关联的第三预设阈值，选择所述5G WIFI信道列表中属于第三信道集的信道中评估分数最高的信道作为当前工作信道。
  11. 根据权利要求10所述的设备，其特征在于，所述处理器还用于：
    若所述5G WIFI信道列表中属于第三信道集的信道中，最高的评估分数小于或等于与所述第三信道集关联的第三预设阈值，在所述5G WIFI信道列表中存在属于第四信道集的信道的情况下，计算所述5G WIFI信道列表中属于第四信道集的每个信道的评估分数，其中，所述第四信道集中的每个信道为室内信道且为DFS信道；
    判断所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数是否大于与所述第四信道集关联的第四预设阈值；
    若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数大于与所述第四信道集关联的第四预设阈值，选择所述5G WIFI信道列表中属于第四信道集的信道中评估分数最高的信道作为当前工作信道。
  12. 根据权利要求11所述的设备，其特征在于，所述处理器还用于：
    若所述5G WIFI信道列表中属于第四信道集的信道中，最高的评估分数小于或等于与所述第四信道集关联的第四预设阈值，在所述5G WIFI信道列表中选择评估分数最高的信道作为当前工作信道。
  13. 根据权利要求8-12的设备，其特征在于，所述第一信道集为W58信道集，所述第二信道集为W56信道集，所述第三信道集为W52信道集，所述第四信道集为W53信道集。
  14. 根据权利要求8所述的设备，其特征在于，所述计算所述5G WIFI信道列表中属于第一信道集的每个信道的评估分数包括：
    扫描所述5G WIFI信道列表中属于第一信道集的每一个信道，获取所述每一个信道的评估参数；
    根据所述每一个信道的评估参数，计算所述每一个信道的评估分数。
  15. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-7所述的方法。
  16. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如权利要求1-7所述的方法。
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EP3541035A4 (en) 2019-09-25
CN108605033B (zh) 2020-07-28
EP3541035B1 (en) 2022-10-26
CN108605033A (zh) 2018-09-28

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