CN111867004B - Wireless terminal access method and device under Wi-Fi6 scene - Google Patents
Wireless terminal access method and device under Wi-Fi6 scene Download PDFInfo
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- CN111867004B CN111867004B CN202010508918.2A CN202010508918A CN111867004B CN 111867004 B CN111867004 B CN 111867004B CN 202010508918 A CN202010508918 A CN 202010508918A CN 111867004 B CN111867004 B CN 111867004B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of Wi-Fi6, and provides a method and a device for accessing a wireless terminal under a Wi-Fi6 scene. The first wireless access point generates a first beacon frame and a second beacon frame; the first wireless access point receives the first probe request frame, HE identification detection is carried out on the first probe request frame, and if the first probe request frame is provided with the HE identification, an authentication access task of the first wireless terminal is added into a message queue in a Wi-Fi6 mode; otherwise, the authentication access task of the first wireless terminal is added into the message queue in the common mode. The invention utilizes the beacon sending module of the wireless access point of Wi-Fi6 to send the differentiated beacon frame, so that the wireless terminals with different support capabilities can identify the wireless network of the wireless access point through the corresponding beacon frame.
Description
[ technical field ] A
The invention relates to the technical field of Wi-Fi6, in particular to a method and a device for accessing a wireless terminal under a Wi-Fi6 scene.
[ background of the invention ]
With the increasing demand of people on the transmission rate of wireless networks, the Wi-Fi development goes through the iteration from 802.11b to 802.11ac standards, and the rate of each generation of Wi-Fi standard is greatly increased. However, as business activities of people live are more and more abundant, for example, data transmission of Wi-Fi networks is crowded due to the requirements of video conferences and online education, and technologies such as VR technology, unmanned driving, artificial intelligence and the like are applied depending on wireless communication, the Wi-Fi networks still need to continuously increase the speed, and meanwhile, access of more terminals needs to be considered, so as to provide more efficient and high-quality user experience.
At present, Wi-Fi6 products are not popular in life, the upgrading speed of the products cannot keep pace with the increasing development of the technology, the wireless network cards of many terminal products still use the driving version before the release of the Wi-Fi6 technical standard, and the non-updated driving version cannot analyze the extended IE field (HE identifier) in the 802.11ax protocol, so that under the wireless network environment based on the Wi-Fi6 mode, the wireless network cards cannot normally use the network due to the fact that the SSID cannot be recognized, and the network access compatibility problem exists. Therefore, in order to ensure that the end user can normally use the network in the Wi-Fi6 mode, solving the compatibility between wireless terminals with different support capabilities becomes a problem to be solved urgently by those skilled in the wireless access field.
[ summary of the invention ]
The technical problem to be solved by the invention is to ensure that a terminal user can normally use a network in a Wi-Fi6 mode, and solve the compatibility problem among wireless terminals with different support capacities.
The invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for accessing a wireless terminal in a Wi-Fi6 scenario, including:
the first wireless access point generates a first beacon frame and a second beacon frame; the first beacon frame carries an HE identifier, and the second beacon frame does not carry the HE identifier;
broadcasting the first beacon frame and the second beacon frame so that the wireless terminal sends a probe request frame after receiving the first beacon frame and/or the second beacon frame;
the method comprises the steps that a first wireless access point receives a first probe request frame, HE identification detection is conducted on the first probe request frame, and whether a first wireless terminal of the first probe request frame supports Wi-Fi6 or not is determined;
if the first probe request frame has an HE identifier, the first wireless access point adds an authentication access task of the first wireless terminal into a message queue in a Wi-Fi6 mode; and if the first probe request frame does not carry the HE identifier, the first wireless access point adds the authentication access task of the first wireless terminal to a message queue in a common mode.
Preferably, the first beacon frame carries an HE identifier, and the second beacon frame does not carry an HE identifier, which specifically includes:
and expanding HE Capabilities fields in the Capabilities info fields in the first beacon frame, wherein the HE Capabilities fields are not expanded in the Capabilities info fields in the second beacon frame.
Preferably, the broadcasting the first beacon frame and the second beacon frame specifically includes:
the first beacon frame and the second beacon frame are sent out in a broadcasting mode according to a preset proportion alternation mode.
Preferably, the predetermined ratio is 4:1, 2:1 or 1: 1.
Preferably, the method further comprises:
the first wireless access point counts the accessed wireless terminals, wherein the statistical content comprises the access time of each wireless terminal, and the distribution of the probe request frames transmitted by each wireless terminal, which carry the HE identification and do not carry the HE identification, and the preset proportion is adjusted according to the statistical distribution result.
In a second aspect, the present invention further provides a method for accessing a wireless terminal in a Wi-Fi6 scenario, including:
the second wireless access point generates a second beacon frame; wherein, the second beacon frame does not carry the HE identifier;
the second wireless access point broadcasts the second beacon frame so that the wireless terminal sends a probe request frame after receiving the second beacon frame;
the second wireless access point receives a second probe request frame reported by the second wireless terminal; wherein, the second probe request frame carries an HE identifier;
the second wireless access point confirms that the second probe request frame carries partial unrecognized fields, and forwards the second probe request frame to other adjacent wireless access points in the mesh network;
if a third wireless access point finishes analyzing the second probe request frame, the third wireless access point sends a third probe response frame; and the third probe response frame returns to the second wireless terminal through the second wireless access point through a transmission network link from the third wireless access point to the second wireless access point.
Preferably, the forwarding, by the second radio access point, the second probe request frame to other neighboring radio access points in the mesh network includes:
the second wireless access point forwards a second probe request frame with the HE identifier in the mesh network; after receiving the second probe request frame, other wireless access points in the mesh network reply the corresponding probe response frame according to respective capabilities; wherein, the corresponding probe response frame includes the third probe response frame.
Preferably, after generating the third probe response frame, the third wireless access point forwards the third probe response frame to the mesh network, so that after receiving the third probe response frame, other wireless access points in the mesh network skip generation and transmission of respective probe response frames for responding to the second probe request frame.
Preferably, if the second wireless access point receives at least two probe response frames, the method further includes:
the second wireless access point analyzes the link quality between the at least two wireless access points which correspondingly send the at least two probe response frames and the second wireless access point, selects a third probe response frame which is sent by the third wireless access point and has the highest link quality, and sends the third probe response frame to the second wireless terminal;
wherein the link quality is calculated according to one or more of link bandwidth, link stability and link delay.
In a third aspect, the present invention further provides an apparatus for accessing a wireless terminal in a Wi-Fi6 scenario, where the apparatus is configured to implement a method for accessing a wireless terminal in a Wi-Fi6 scenario, and the apparatus includes:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor for performing the method for wireless terminal access in the Wi-Fi6 scenario of the first or second aspect.
In a fourth aspect, the present invention also provides a non-transitory computer storage medium storing computer-executable instructions for execution by one or more processors to perform the method for accessing a wireless terminal in the Wi-Fi6 scenario described in the first aspect.
The invention utilizes the wireless access points in the Wi-Fi6 to send beacon frames with different identifications, so that wireless terminals with different support capacities can identify the wireless network of the wireless access points, the wireless terminals can normally access the network through different message queues, and the problem of compatibility of the wireless access points supporting the Wi-Fi6 with different wireless terminals is solved.
On the other hand, the invention adopts a method for processing skipping the frame field which can not be analyzed for the wireless access point of the non-Wi-Fi 6, thereby avoiding the situation that the wireless access point forcibly rejects the access to the wireless terminal with higher capability.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of a Beacon frame format transmitted by an AP according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a format of a Probe Response frame sent by an AP according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating contents of a 802.11ac protocol Capability info field according to an embodiment of the present invention;
fig. 4 is a content diagram of a Probe Request frame format sent by an STA according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a Probe Request frame format sent by an STA according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating contents of a Capability info field of an 802.11ax protocol according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a method for accessing a wireless terminal in a Wi-Fi6 scenario according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a method for accessing a wireless terminal in another Wi-Fi6 scenario according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a typical 3-instance STA accessing AP in Wi-Fi6 technology according to an embodiment of the present invention;
fig. 10 is a signaling diagram of a scenario where a STA accesses an AP in Wi-Fi6 technology according to an embodiment of the present invention;
fig. 11 is a signaling diagram of a scenario two in which an STA accesses an AP in the Wi-Fi6 technology according to an embodiment of the present invention;
fig. 12 is a three-signaling diagram of a scenario in which an STA accesses an AP in the Wi-Fi6 technology according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of an apparatus for wireless terminal access in another Wi-Fi6 scenario according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In 9 months of 2019, a Wi-Fi alliance announces to start a Wi-Fi6 certification plan, Wi-Fi6 (originally: 802.11ax) is concerned by wireless communication device manufacturers due to the characteristics of protocol compatibility, higher transmission rate and coverage, OFDMA technology, MU-MIMO, BSS marketing and Power saving, and AP (which is an english abbreviation of a wireless access point in the embodiment of the present invention) products based on the Wi-Fi6 technology also become a popularization hotspot in the wireless communication device market. The technology improves the average transmission rate of users in a dense environment, provides better user data experience, and the Wi-Fi 6-based network technology is also paid more and more attention by people. In order to provide better network services for a large number of different wireless terminals, a wireless network needs to consider whether different wireless terminals can be accessed, and therefore, the Wi-Fi network is a key point in wireless network research for being compatible with more terminal accesses.
Different from the prior protocol (802.11a/b/n/ac), the HE identification is added into the extended IE field of the 802.11ax protocol to indicate the protocol supporting capability. This enables the wireless terminal to access the wireless network without requiring corresponding identification capabilities in order to properly access and use the network. Whereas the Wi-Fi6 standard was formally introduced in 2019, only the later drive versions could have extended IEs resolving the standard.
The 802.11ax protocol standard is an extension based on the existing protocol standard, and the characteristics of the 802.11ax protocol are specifically explained by comparing the contents of the 802.11ax and 802.11ac (also known as Wi-Fi5 protocol in the industry), and the difference is mainly explained by beacon frames and probe frames. For example, as shown in the third field located on the second row in fig. 1, the Capability Info field in the Beacon frame indicates the protocol support Capability of the device, in the Wi-Fi5 era, in the Beacon frame (shown in fig. 1) and the Probe Response frame (shown in fig. 2) sent by the AP device, the VHT Capabilities field is carried in the Capability Info field (the description of the VHT Capabilities field in the corresponding protocol is shown in fig. 3), and in the Wi-Fi6 era, the HE Capabilities field is further extended in the Capability Info field to indicate the wireless protocol support Capability of the device.
In the Wi-Fi6 era, for STAs (all called: Station), their capability of supporting wireless protocols can be embodied from the content of the Frame body in the Probe Request (as shown in fig. 4). In the Wi-Fi5 era, Extended Supported Rates in the Probe Request carry an Operational VHTMCS _ NSSSet field (as shown in FIG. 5), and on the basis, the Wi-Fi6 era extends the HE Capabilities field (as shown in FIG. 6) to represent the device's 802.11ax support capability.
In the Wi-Fi6 era, the AP receives the Probe Request frame of the STA (which is a concrete representation form of the wireless terminal in the embodiment of the present invention), and replies to the Probe Response frame (as shown in fig. 2), wherein the content of the Capability Info field is used to display the protocol support Capability of the AP.
Therefore, in order to ensure that the end user can normally use the network in the Wi-Fi6 mode, the problem to be solved by the present invention is to solve the compatibility between wireless terminals with different support capabilities.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1:
in step 201, the first wireless access point AP generates a first beacon frame and a second beacon frame; the first beacon frame carries the HE identifier, and the second beacon frame does not carry the HE identifier.
The corresponding transmitted beacon frame format may be implemented with reference to fig. 1, where the HE identifier is carried, that is, the content of the HE Capabilities field is extended and carried in the Capability Info field in fig. 1, and the content of the HE Capabilities field is determined as the standard protocol shown in fig. 6, which is not described herein again.
In step 202, the first beacon frame and the second beacon frame are broadcasted, so that the wireless terminal sends a probe request frame after receiving the first beacon frame and/or the second beacon frame.
A probe request frame sent by a corresponding wireless terminal (also called STA in the related protocol standard) may be implemented with reference to fig. 4, and in the implementation process, the expressions of a differentiated probe request frame supporting Wi-Fi6 and a differentiated probe request frame not supporting Wi-Fi6 may be distinguished, specifically, if the wireless terminal supports Wi-Fi6, the corresponding probe request frame carries an HE identifier, and if the wireless terminal does not support Wi-Fi6, the corresponding probe request frame does not carry the HE identifier.
In step 203, the first wireless access point receives the first probe request frame, and performs HE identity detection on the first probe request frame, so as to determine whether the first wireless terminal of the first probe request frame supports Wi-Fi 6.
In step 204, if the first probe request frame has an HE identifier, the first wireless access point adds an authentication access task of the first wireless terminal to a message queue in the Wi-Fi6 mode; and if the first probe request frame does not carry the HE identifier, the first wireless access point adds the authentication access task of the first wireless terminal to a message queue in a common mode.
One manifestation of the common mode is Wi-Fi5 mode. In addition, the specific processing mode inside the message queue belongs to the conventional technical means in the field, and is not the improvement point of the present invention, and therefore, the detailed description is omitted here.
According to the embodiment of the invention, the beacon sending module of the wireless access point of Wi-Fi6 is used for sending the differentiated beacon frame, so that wireless terminals with different support capabilities can identify the wireless network of the wireless access point through the corresponding beacon frame, the wireless terminals can normally access the network through different message queues, and the problem of compatibility of the wireless access point supporting Wi-Fi6 with different wireless terminals is solved.
In this embodiment of the present invention, the broadcasting the first beacon frame and the second beacon frame in step 202 specifically includes: the first beacon frame and the second beacon frame are sent out in a broadcasting mode according to a preset proportion alternation mode. For example: the preset ratio is 4:1, 2:1 or 1: 1.
As an improved scheme more suitable for complex application scenes, aiming at the mode of giving a fixed preset proportion, the invention fully considers that the same product can have exactly opposite difference characteristics when applied to different occasions, such as: in some developed places, the functions and supported Wi-Fi versions of corresponding wireless terminals are more corresponding to Wi-Fi 6; however, in some laggard areas, the devices they use may be larger in proportion to support Wi-Fi5, and in this case, the fixed preset proportion may not be suitable for providing the most efficient message response and network access experience, and therefore, an improvement is provided in conjunction with the embodiments of the present invention, including:
the first wireless access point counts the accessed wireless terminals, wherein the statistical content comprises the access time of each wireless terminal and the distribution of the HE identification carried and the HE identification not carried in the probe request frame transmitted by each wireless terminal, and the preset proportion is adjusted according to the statistical distribution result. For example: and counting that the ratio of the wireless terminals supporting the Wi-Fi5 and the wireless terminals supporting the Wi-Fi6 in the same time period is m: n, the preset proportion of the corresponding first wireless access point in the time period is suitably set as n: m; further, if the ratio of the wireless terminals supporting Wi-Fi5 and supporting Wi-Fi6 in another time period is counted as p: q, the preset proportion of the corresponding first wireless access point in the other time period is suitably set as q: p, i.e., the first wireless access point, implements a time-phased, differentiated preset scaling solution. As will be shown in the practical application, the inventor also provides a specific application scenario for this purpose, such as: for a high-end office, during abnormal business hours, more wireless terminals accessing the first wireless access point are wireless terminals belonging to staff, and it is assumed that more of the wireless terminals are low-end devices, i.e. more wireless terminals are Wi-Fi 5-capable, and more of the wireless terminals accessing the first wireless access point during normal business hours (i.e. the other period) are high-end wireless terminals, therefore, more high-duty wireless terminals are Wi-Fi 6-capable, therefore, the solution of dynamically specifying the preset ratio of the first beacon frame and the second beacon frame for different time periods is provided.
Example 2:
compared with embodiment 1, the technical problem to be solved by the embodiment of the present invention is how to provide a more effective Wi-Fi access service for a wireless terminal supporting Wi-Fi6 in a network coverage environment when a wireless access point that transmits a beacon frame from a first level does not support Wi-Fi 6. One of the biggest differences from embodiment 1 is that the wireless access point for the first level to transmit beacon frames in embodiment 1 supports both Wi-Fi5 and Wi-Fi6, while the wireless access point for the first level to transmit beacon frames in this embodiment does not support Wi-Fi 6. As shown in fig. 8, the method includes:
in step 301, the second wireless access point generates a second beacon frame; and the second beacon frame does not carry the HE identifier.
In order to make the difference from the embodiment 1 in the expression, the embodiment of the present invention uses a new expression similar to the second wireless access point, and because the beacon frame does not carry the HE identifier and has the same characteristics as the corresponding beacon frame in the embodiment 1, the embodiment of the present invention uses the expression of the second beacon frame. It should be noted that the expressions "first", "second" or "third" in the embodiments of the present invention are only for convenience of distinguishing different subjects of the same type of object, and do not cause special limitation of the related technical features.
In step 302, the second wireless access point broadcasts the second beacon frame, so that the wireless terminal sends a probe request frame after receiving the second beacon frame.
The probe request frame described here is one including the second probe request frame in step 303, i.e., the one actually received by the second wireless access point, and may also be a third probe request frame from the third wireless terminal, a fourth probe request frame from the fourth wireless terminal, and so on.
In step 303, the second wireless access point receives a second probe request frame reported by the second wireless terminal; and the second probe request frame carries an HE identifier.
In step 304, the second wireless access point confirms that the second probe request frame carries a field that cannot be partially identified, and the second wireless access point forwards the second probe request frame to other neighboring wireless access points in the mesh network.
In the embodiment of the present invention, the HE identifier carried in the second probe request frame is not recognizable by the second wireless access point.
In step 305, if there is a third wireless access point that completes parsing the second probe request frame, the third wireless access point sends a third probe response frame; and the third probe response frame returns to the second wireless terminal through the second wireless access point through a transmission network link from the third wireless access point to the second wireless access point.
And the transmission network link is used as a data transmission channel between the second wireless terminal and a third wireless access point.
The embodiment of the invention adopts the processing method that the probe request frame is forwarded to other adjacent wireless access points in the mesh network for the wireless access point of the non-Wi-Fi 6, can avoid the situation that the wireless access point forcibly rejects the access to the wireless terminal with higher capability, utilizes the maximum access capability in the mesh network, and solves the problem of the compatibility of the wireless access point supporting the Wi-Fi6 to different wireless terminals.
In this embodiment of the present invention, the second radio access point involved in step 304 forwards the second probe request frame to other neighboring radio access points in the mesh network, and there is an expression expanded by implementation details, including:
the second wireless access point forwards a second probe request frame with the HE identifier in the mesh network; after receiving the second probe request frame, other wireless access points in the mesh network reply the corresponding probe response frame according to respective capabilities; wherein, the corresponding probe response frame includes the third probe response frame.
In the embodiment of the present invention, in order to avoid excessive data, it is desirable that only the wireless access point in the mesh network that can analyze the HE identifier replies a probe response packet with the HE identifier, so that there is an optimal improvement scheme, specifically: and after generating the third probe response frame, the third wireless access point forwards the third probe response frame to the mesh network, so that other wireless access points in the mesh network skip generation and transmission of corresponding probe response frames respectively corresponding to the second probe response frame after receiving the third probe response frame.
However, in the implementation process of the above preferred scheme, it cannot be strictly guaranteed that only one wireless access point supporting Wi-Fi6 in the mesh network sends a probe response frame. This is because, when other wireless access points in the mesh network receive the first generated and transmitted probe response frame, because of the time delay between the wireless access points, the self-generated probe response frame may have been transmitted before receiving the probe response frame previously generated by other wireless access points, and therefore, in combination with the embodiment of the present invention, there is also an improvement scheme, if the second wireless access point receives at least two probe response frames, the method further includes:
the second wireless access point analyzes the link quality between the at least two wireless access points which correspondingly send the at least two probe response frames and the second wireless access point, selects a third probe response frame which is sent by the third wireless access point and has the highest link quality, and sends the third probe response frame to the second wireless terminal;
wherein the link quality is calculated according to one or more of link bandwidth, link stability and link delay.
Example 3:
the embodiment of the present invention performs corresponding representation on part of the method processes between related objects related to embodiments 1 and 2 of the present invention, in combination with a conventional call mode and a signaling interaction representation form in the related field.
The wireless access point in the embodiment of the invention is specifically expressed as an AP, and the wireless terminal is expressed as an STA, wherein two different beacon frames exist in a wireless local area network within the coverage range of the AP, and no matter whether the STA has the capability of supporting Wi-Fi6 or not, the corresponding beacon frame can be obtained, and the SSID of the network is obtained from the beacon frame, so that the authentication access is initiated to the AP. As shown in fig. 9, in the Wi-Fi6 technical scenario, the scenario that the STA accesses the AP is as follows:
in a first scenario, when an STA supporting Wi-Fi6 accesses an AP in a Wi-Fi6 mode, the STA receives a beacon frame with an HE identifier broadcast by the AP, and a corresponding STA reports a probe request frame with the HE identifier to the AP, and the AP reports a probe response frame with the HE identifier to the STA, and completes an AP access process of the STA according to an authentication message queue in the Wi-Fi6 mode, where a message interaction flow between two devices is shown in a link (i) marked in fig. 9, and a signaling diagram of the link is shown in fig. 10, in a first step: the AP supporting Wi-Fi6 broadcasts beacon frames with the HE identified by Wi-Fi6 and beacon frames without the HE identified by Wi-Fi6 outwards, and the number ratio of the two types of beacon frames can be 4:1 (the dynamic setting mode proposed in the real-time 1 extension scheme can also be adopted); the second step is that: the STA supporting Wi-Fi6 listens to beacon frames; the third step: the STA supporting Wi-Fi6 sends a probe request frame with an identification HE to the Wi-Fi6 AP; the fourth step: the AP supporting the Wi-Fi6 replies a probe response frame with an identification HE of the STA supporting the Wi-Fi 6; the fifth step: establishing Authentication between the AP supporting the Wi-Fi6 and the STA supporting the Wi-Fi 6; and a sixth step: the STA supporting Wi-Fi6 sends an association request frame with an identification HE to an AP supporting Wi-Fi 6; the seventh step: the AP supporting Wi-Fi6 replies an association response frame with an identification HE of the STA supporting Wi-Fi 6; eighth step: the AP supporting the Wi-Fi6 and the STA supporting the Wi-Fi6 establish Association, and therefore the Association authentication online process of the STA and the AP is completed.
And in a second scenario, when the STA which does not support Wi-Fi6 accesses the AP in the Wi-Fi6 mode, the STA may receive a beacon frame without the HE identifier broadcasted by the AP, parse out the SSID from the beacon frame, report a general probe request frame without the HE identifier to the AP, and complete the process of accessing the STA to the AP by using a general authentication message queue, where a message interaction flow between two devices is shown by a link marked as ± (second) in fig. 9, a signaling diagram of the message interaction flow is shown in fig. 11, a message interaction diagram of the non-Wi-Fi 6 STA associating Wi-Fi6 AP is consistent with an association authentication uplink process of the link (first), and only differences exist in interaction management frames (shown in detail in fig. 11), and details are not repeated here.
And in a third scenario, when the STA supporting Wi-Fi6 accesses the AP in the non-Wi-Fi 6 mode, the STA only receives beacon frames without the HE identifier broadcast by the AP in the non-Wi-Fi 6 mode, at this time, the STA supporting Wi-Fi6 can also normally resolve to the SSID, and a process of accessing the STA to the AP is completed by a common authentication message queue, at this time, a message interaction flow between two devices is shown as a link marked by three in fig. 9, a signaling diagram of the process is shown in fig. 12, a message interaction diagram of associating the STA with the non-Wi-Fi 6 AP is shown by the Wi-Fi6, an online process of corresponding association authentication is consistent with the link (i), and details are not repeated here. It should be noted that scenario three utilizes that the STA side is downward compatible with the AP when supporting Wi-Fi6, that is, when the AP is an AP in a non-Wi-Fi 6 mode, the STA supporting Wi-Fi6 may still access. The solution proposed in embodiment 2 of the present invention may be considered as two alternatively implemented solutions, and as a certain scenario, if an AP in the Wi-Fi6 mode exists in a mesh network adjacent to an AP in the non-Wi-Fi 6 mode, and when it is strived to provide richer services for the corresponding STA supporting Wi-Fi6, it is preferable to adopt the solution proposed in embodiment 3.
Example 4:
fig. 13 is a schematic diagram of an architecture of a wireless terminal access device in a Wi-Fi6 scenario according to an embodiment of the present invention. The wireless terminal access device in the Wi-Fi6 scenario of the present embodiment includes one or more processors 21 and memory 22. In fig. 13, one processor 21 is taken as an example.
The processor 21 and the memory 22 may be connected by a bus or other means, and the bus connection is exemplified in fig. 13.
The memory 22, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs and non-volatile computer-executable programs, such as the method for wireless terminal access in the Wi-Fi6 scenario in embodiment 1. Processor 21 executes the method of wireless terminal access in the Wi-Fi6 scenario by executing non-volatile software programs and instructions stored in memory 22.
The memory 22 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 22 may optionally include memory located remotely from the processor 21, and these remote memories may be connected to the processor 21 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The program instructions/modules stored in the memory 22, when executed by the one or more processors 21, perform the method for wireless terminal access in the Wi-Fi6 scenario of embodiment 1, for example, perform the steps illustrated in fig. 7 and 8 described above.
It should be noted that, for the information interaction, execution process and other contents between the modules and units in the apparatus and system, the specific contents may refer to the description in the embodiment of the method of the present invention because the same concept is used as the embodiment of the processing method of the present invention, and are not described herein again.
Those of ordinary skill in the art will appreciate that all or part of the steps of the various methods of the embodiments may be implemented by associated hardware as instructed by a program, which may be stored on a computer-readable storage medium, which may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A method for accessing a wireless terminal under a Wi-Fi6 scene is characterized by comprising the following steps:
the first wireless access point generates a first beacon frame and a second beacon frame; the first beacon frame carries an extended IE field HE identifier, and the second beacon frame does not carry the HE identifier;
broadcasting the first beacon frame and the second beacon frame so that the wireless terminal sends a probe request frame after receiving the first beacon frame and/or the second beacon frame;
the method comprises the steps that a first wireless access point receives a first probe request frame, HE identification detection is conducted on the first probe request frame, and whether a first wireless terminal of the first probe request frame supports Wi-Fi6 or not is determined;
if the first probe request frame has an HE identifier, the first wireless access point adds an authentication access task of the first wireless terminal into a message queue in a Wi-Fi6 mode; if the first probe request frame does not carry the HE identifier, the first wireless access point adds the authentication access task of the first wireless terminal to a message queue in a common mode;
the first wireless access point counts the accessed wireless terminals, wherein the statistical content comprises the access time of each wireless terminal and the distribution of the probe request frames transmitted by each wireless terminal, wherein the distribution carries the HE identification and does not carry the HE identification, and the preset proportion is adjusted according to the statistical distribution result;
the preset proportion is the proportion relation sent out by the first beacon frame and the second beacon frame in an alternating mode.
2. The method for accessing a wireless terminal in a Wi-Fi6 scenario according to claim 1, wherein the first beacon frame carries an HE identifier, and the second beacon frame does not carry an HE identifier, specifically:
and expanding HE Capabilities fields in the Capabilities info fields in the first beacon frame, wherein the HE Capabilities fields are not expanded in the Capabilities info fields in the second beacon frame.
3. The method for accessing a wireless terminal in a Wi-Fi6 scenario according to claim 1, wherein the broadcasting the first beacon frame and the second beacon frame specifically includes:
the first beacon frame and the second beacon frame are sent out in a broadcasting mode according to a preset proportion alternation mode.
4. The method for accessing the wireless terminal under the Wi-Fi6 scenario of claim 3, wherein the preset ratio is 4:1, 2:1, or 1: 1.
5. A method for accessing a wireless terminal under a Wi-Fi6 scene is characterized by comprising the following steps:
the second wireless access point generates a second beacon frame; wherein, the second beacon frame does not carry the HE identifier;
the second wireless access point broadcasts the second beacon frame so that the wireless terminal sends a probe request frame after receiving the second beacon frame;
the second wireless access point receives a second probe request frame reported by the second wireless terminal; wherein, the second probe request frame carries an HE identifier;
the second wireless access point confirms that the second probe request frame carries a part of unrecognized fields, and forwards the second probe request frame to other adjacent wireless access points in the mesh network;
if a third wireless access point finishes the analysis of the second probe request frame, the third wireless access point sends a third probe response frame; and the third probe response frame returns to the second wireless terminal through the second wireless access point through a transmission network link from the third wireless access point to the second wireless access point.
6. The method for accessing a wireless terminal in a Wi-Fi6 scenario according to claim 5, wherein the forwarding, by the second radio access point, the second probe request frame to other neighboring radio access points in the mesh network specifically includes:
the second wireless access point forwards a second probe request frame with the HE identifier in the mesh network; after receiving the second probe request frame, other wireless access points in the mesh network reply the corresponding probe response frame according to respective capabilities; wherein, the corresponding probe response frame includes the third probe response frame.
7. The method for accessing the wireless terminal in the Wi-Fi6 scenario of claim 6, wherein a third wireless access point forwards the third probe response frame to a mesh network after generating the third probe response frame, so that other wireless access points in the mesh network skip generation and transmission of respective probe response frames each corresponding to a response to the second probe request frame after receiving the third probe response frame.
8. The method for accessing the wireless terminal under the Wi-Fi6 scenario of claim 6, wherein if the second wireless access point receives at least two probe response frames, the method further comprises:
the second wireless access point analyzes the link quality between the at least two wireless access points which correspondingly send the at least two probe response frames and the second wireless access point, selects a third probe response frame which is sent by the third wireless access point and has the highest link quality, and sends the third probe response frame to the second wireless terminal;
wherein the link quality is calculated according to one or more of link bandwidth, link stability and link delay.
9. An apparatus for wireless terminal access in a Wi-Fi6 scenario, the apparatus comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor for performing the corresponding method contents relating to the first wireless access point in the method for wireless terminal access in the Wi-Fi6 scenario of any of claims 1-8.
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