CN111867131A - Access method and device - Google Patents
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- CN111867131A CN111867131A CN202010599103.XA CN202010599103A CN111867131A CN 111867131 A CN111867131 A CN 111867131A CN 202010599103 A CN202010599103 A CN 202010599103A CN 111867131 A CN111867131 A CN 111867131A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000004044 response Effects 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The application provides an access method and an access device, wherein the method is applied to an AP (access point), and the method comprises the following steps: when a detection request message broadcasted by a wireless terminal is received through a radio frequency unit, acquiring an access capability parameter of the wireless terminal from the detection request message; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP; judging whether the wireless terminal is allowed to access to the radio frequency unit or not according to the access strategy and the access capability parameter configured on the radio frequency unit; and if so, sending a detection response message to the wireless terminal through the radio frequency unit so that the wireless terminal is accessed to the radio frequency unit. The embodiment of the application can reasonably utilize the hardware resources of the AP, and further improve the user experience of the user holding the wireless terminal.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an access method and an access device.
Background
With the continuous evolution of Wireless Local Area Network (WLAN) technology, Wireless protocols supported by Wireless terminals are various, for example, there are Wireless terminals supporting 802.11ax, Wireless terminals supporting 802.11ac, and Wireless terminals supporting 802.11 n.
At present, wireless terminals supporting different wireless protocols are all mixed together and randomly accessed to a plurality of radio frequency units (e.g., dual radio frequency units) supporting a 5GHz frequency band on an Access Point (AP), and this Access manner does not reasonably utilize hardware resources of the AP, thereby resulting in poor experience of users holding the wireless terminals.
Disclosure of Invention
In order to overcome the problems in the related art, the application provides an access method and an access device.
According to a first aspect of embodiments of the present application, there is provided an access method, which is applied to an AP, and the method includes:
when a detection request message broadcasted by a wireless terminal is received through a radio frequency unit, acquiring an access capability parameter of the wireless terminal from the detection request message; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP;
judging whether the wireless terminal is allowed to be accessed to the radio frequency unit or not according to the access strategy configured on the radio frequency unit and the access capability parameter;
and if so, sending a detection response message to the wireless terminal through the radio frequency unit so that the wireless terminal is accessed to the radio frequency unit.
According to a second aspect of the embodiments of the present application, there is provided an access apparatus, which is applied to an AP, the apparatus including:
the wireless terminal comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the access capability parameter of the wireless terminal from a detection request message when the detection request message broadcasted by the wireless terminal is received through a radio frequency unit; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP;
the judging module is used for judging whether the wireless terminal is allowed to be accessed to the radio frequency unit or not according to the access strategy configured on the radio frequency unit and the access capability parameter;
and the sending module is used for sending a detection response message to the wireless terminal through the radio frequency unit when the judgment result of the judging module is yes, so that the wireless terminal is accessed to the radio frequency unit.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
in the embodiment of the application, when the AP receives a probe request message from the wireless terminal through a radio frequency unit supporting a 5GHz frequency band, the AP obtains an access capability parameter of the wireless terminal, and comprehensively decides whether to allow access according to the obtained access capability parameter and an access policy of the radio frequency unit. In the access mode, the AP can classify the wireless terminals according to the wireless access capacity of the wireless terminals and guide the wireless terminals to be differentially accessed to different radio frequency units supporting 5GHz frequency bands, so that the hardware resources of the AP are reasonably utilized, and the user experience of users holding the wireless terminals is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic flowchart of an access method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an access device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Next, examples of the present application will be described in detail.
An embodiment of the present application provides an access method, which is applied to an AP, and as shown in fig. 1, the access method may include the following steps:
s11, when receiving a probe request (probe request) message broadcasted by the wireless terminal through the radio frequency unit, obtaining an access capability parameter of the wireless terminal from the probe request message.
The radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP.
When acquiring the access capability parameter of the wireless terminal from the probe request message, the AP may specifically acquire the access capability parameter of the wireless terminal from an Information Element (IE) field in the probe request message.
S12, judging whether the wireless terminal is allowed to access to the radio frequency unit according to the access strategy and the access capability parameter configured on the radio frequency unit; if yes, go to step S13; when the determination result is no, step S14 is executed.
S13, sending a probe response (probe response) message to the wireless terminal through the rf unit, so that the wireless terminal accesses the rf unit.
And S14, rejecting the response detection request message.
Specifically, in an embodiment of the present application, the access policy configured on the radio frequency unit may be to allow access to a wireless terminal that supports 802.11ax or 802.11ac wave2 (second wave) and to allow access to a wireless terminal that supports 802.11ac wave1 (first wave) and supports a number of spatial streams that is not less than a set threshold, so as to direct access to a wireless terminal with higher access capability.
In this configuration, the specific implementation process of step S12 is as follows:
if the access capability parameter comprises that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the judgment result is that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is not allowed to be accessed to the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is not less than a set threshold; determining that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than a set threshold; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy.
In another embodiment of the present application, the access policy configured on the radio frequency unit may be to allow access to a wireless terminal that supports only 802.11n and allow access to a wireless terminal that supports 802.11ac wave1 and the number of supported spatial streams is less than a set threshold, so as to direct access to a wireless terminal with a general access capability.
In this configuration, the specific implementation process of step S12 is as follows:
if the access capability parameter comprises that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than a set threshold; determining that the wireless terminal is allowed to access the radio frequency unit according to the judgment result;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is not less than a set threshold; the wireless terminal is determined not to be allowed to access the radio frequency unit as a result of the determination.
The setting threshold may be set according to the actual situation of the wireless networking.
The above access method will be described in detail with reference to examples.
Suppose that a certain AP in the wireless network is provided with dual radio frequency units supporting a 5GHz frequency band, which are a radio frequency unit 1 and a radio frequency unit 2, respectively.
The access policy configured on the radio frequency unit 1 is to allow access to wireless terminals supporting 802.11ax or 802.11ac wave2 and to allow access to wireless terminals supporting 802.11ac wave1 and supporting no less than 2 spatial streams.
The access policy configured on the radio unit 2 is to allow access for wireless terminals supporting only 802.11n and wireless terminals supporting 802.11ac wave1 and supporting less than 2 spatial streams.
Suppose that wireless terminal 1 supports 802.11ac wave1 and the number of spatial streams supported is 1.
Suppose that the wireless terminal 1 polls a certain channel supported by the radio frequency unit 1 at a certain time, and broadcasts a probe request message carrying an access capability parameter on the channel. Wherein, the access capability parameter includes that the wireless terminal 1 supports 802.11ac wave1 and the number of supported spatial streams is 1, and is located in the IE field in the probe request message.
The AP receives the probe request message through the radio frequency unit 1, and acquires the access capability parameter from the IE field in the probe request message.
The AP may determine that the wireless terminal 1 is not allowed to access the radio frequency unit 1 according to the access policy configured by the radio frequency unit 1, and at this time, the AP rejects to respond to the probe request message.
When the local timer expires and the probe response message is not received, the wireless terminal 1 continues to poll the next channel.
Assume that subsequent polling is performed on a certain channel supported by the radio frequency unit 2, and a probe request message carrying an access capability parameter is broadcast on the channel.
The AP receives the probe request message through the radio frequency unit 2, and acquires the access capability parameter from the IE field in the probe request message.
The AP may determine, according to the access policy configured by the radio frequency unit 2, that the wireless terminal 1 is allowed to access the radio frequency unit 2, and at this time, the AP sends a probe response message to the wireless terminal 1 through the radio frequency unit 2, so that the wireless terminal 1 is allowed to access the radio frequency unit 2.
It can be seen from the above technical solutions that, in the embodiment of the present application, when an AP receives a probe request packet from a wireless terminal through a radio frequency unit supporting a 5GHz frequency band, an access capability parameter of the wireless terminal is obtained, and whether to allow access is comprehensively determined according to the obtained access capability parameter and an access policy of the radio frequency unit. In the access mode, the AP can classify the wireless terminals according to the wireless access capacity of the wireless terminals and guide the wireless terminals to be differentially accessed to different radio frequency units supporting 5GHz frequency bands, so that the hardware resources of the AP are reasonably utilized, and the user experience of users holding the wireless terminals is improved.
Based on the same inventive concept, the present application further provides an access apparatus, where the apparatus is applied to an AP, and a schematic structural diagram of the apparatus is shown in fig. 2, and the access apparatus specifically includes:
an obtaining module 21, configured to obtain an access capability parameter of a wireless terminal from a probe request packet when the probe request packet broadcasted by the wireless terminal is received through a radio frequency unit; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP;
a determining module 22, configured to determine whether to allow the wireless terminal to access the radio frequency unit according to the access policy and the access capability parameter configured on the radio frequency unit;
A sending module 23, configured to send a probe response message to the wireless terminal through the radio frequency unit when the determination result of the determining module 22 is yes, so that the wireless terminal is accessed to the radio frequency unit.
Preferably, the apparatus further comprises:
a rejecting module (not shown in fig. 2) configured to reject to respond to the probe request packet when the determination result of the determining module 22 is negative.
Preferably, the obtaining module is specifically configured to:
and acquiring the access capability parameter of the wireless terminal from an information element IE field in the detection request message.
Preferably, the access policy is to allow access of wireless terminals supporting 802.11ax or 802.11acwave2 and wireless terminals supporting 802.11ac wave1 and the number of supported spatial streams is not less than a set threshold;
the determining module 22 is specifically configured to:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is not less than the set threshold; determining that the wireless terminal is allowed to access to the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than the set threshold; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy.
Preferably, the access policy is to allow access of wireless terminals only supporting 802.11n and wireless terminals supporting 802.11ac wave1 and supporting less than a set threshold;
the determining module 22 is specifically configured to:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is allowed to access to the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than the set threshold; determining that the wireless terminal is allowed to access to the radio frequency unit according to the judgment result;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of spatial streams supported by the wireless terminal is not less than the set threshold; determining that the wireless terminal is not allowed to access to the radio frequency unit.
It can be seen from the above technical solutions that, in the embodiment of the present application, when an AP receives a probe request packet from a wireless terminal through a radio frequency unit supporting a 5GHz frequency band, an access capability parameter of the wireless terminal is obtained, and whether to allow access is comprehensively determined according to the obtained access capability parameter and an access policy of the radio frequency unit. In the access mode, the AP can classify the wireless terminals according to the wireless access capacity of the wireless terminals and guide the wireless terminals to be differentially accessed to different radio frequency units supporting 5GHz frequency bands, so that the hardware resources of the AP are reasonably utilized, and the user experience of users holding the wireless terminals is improved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. An access method, applied to an Access Point (AP), the method comprising:
when a detection request message broadcasted by a wireless terminal is received through a radio frequency unit, acquiring an access capability parameter of the wireless terminal from the detection request message; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP;
judging whether the wireless terminal is allowed to be accessed to the radio frequency unit or not according to the access strategy configured on the radio frequency unit and the access capability parameter;
and if so, sending a detection response message to the wireless terminal through the radio frequency unit so that the wireless terminal is accessed to the radio frequency unit.
2. The method of claim 1, further comprising:
and if the judgment result is negative, refusing to respond to the detection request message.
3. The method according to claim 1, wherein obtaining the access capability parameter of the wireless terminal from the probe request packet specifically comprises:
and acquiring the access capability parameter of the wireless terminal from an information element IE field in the detection request message.
4. The method of claim 1, wherein the access policy is to allow access for wireless terminals supporting 802.11ax or 802.11ac wave2 and allow access for wireless terminals supporting 802.11ac wave1 and supporting no less than a set threshold number of spatial streams;
judging whether the wireless terminal is allowed to access to the radio frequency unit according to the access strategy configured on the radio frequency unit and the access capability parameter, wherein the judging specifically comprises the following steps:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is not less than the set threshold; determining, according to the access policy, that the wireless terminal is allowed to access to the radio frequency unit if the access capability parameter includes that the wireless terminal supports 802.11ac wave1 and the number of supported spatial streams is smaller than the set threshold; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy.
5. The method of claim 1, wherein the access policy is to allow access for wireless terminals that only support 802.11n and allow access for wireless terminals that support 802.11ac wave1 and support a number of spatial streams smaller than a set threshold;
judging whether the wireless terminal is allowed to access to the radio frequency unit according to the access strategy configured on the radio frequency unit and the access capability parameter, wherein the judging specifically comprises the following steps:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is allowed to access to the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than the set threshold; determining that the wireless terminal is allowed to access to the radio frequency unit according to the judgment result;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of spatial streams supported by the wireless terminal is not less than the set threshold; determining that the wireless terminal is not allowed to access to the radio frequency unit.
6. An access device, the device being applied to an Access Point (AP), the device comprising:
the wireless terminal comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the access capability parameter of the wireless terminal from a detection request message when the detection request message broadcasted by the wireless terminal is received through a radio frequency unit; the radio frequency unit is one of a plurality of radio frequency units supporting a 5GHz frequency band on the AP;
the judging module is used for judging whether the wireless terminal is allowed to be accessed to the radio frequency unit or not according to the access strategy configured on the radio frequency unit and the access capability parameter;
And the sending module is used for sending a detection response message to the wireless terminal through the radio frequency unit when the judgment result of the judging module is yes, so that the wireless terminal is accessed to the radio frequency unit.
7. The apparatus of claim 6, further comprising:
and the rejecting module is used for rejecting to respond to the detection request message when the judgment result of the judging module is negative.
8. The apparatus of claim 6, wherein the obtaining module is specifically configured to:
and acquiring the access capability parameter of the wireless terminal from an information element IE field in the detection request message.
9. The apparatus of claim 6, wherein the access policy is to allow access for wireless terminals supporting 802.11ax or 802.11ac wave2 and allow access for wireless terminals supporting 802.11ac wave1 and supporting no less than a set threshold number of spatial streams;
the judgment module is specifically configured to:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is not less than the set threshold; determining that the wireless terminal is allowed to access to the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than the set threshold; determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy.
10. The apparatus of claim 6, wherein the access policy is to allow access for wireless terminals that only support 802.11n and allow access for wireless terminals that support 802.11ac wave1 and support a number of spatial streams smaller than a set threshold;
the judgment module is specifically configured to:
if the access capability parameter includes that the wireless terminal supports 802.11ax or 802.11ac wave2, determining that the wireless terminal is not allowed to access the radio frequency unit according to the access strategy;
If the access capability parameter comprises that the wireless terminal only supports 802.11 n; determining that the wireless terminal is allowed to access to the radio frequency unit according to the access strategy;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of the supported spatial streams is less than the set threshold; determining that the wireless terminal is allowed to access to the radio frequency unit according to the judgment result;
if the access capability parameter comprises that the wireless terminal supports 802.11ac wave1 and the number of spatial streams supported by the wireless terminal is not less than the set threshold; determining that the wireless terminal is not allowed to access to the radio frequency unit.
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