WO2017049580A1

WO2017049580A1 - Network admission control method, access point, and access controller

Info

Publication number: WO2017049580A1
Application number: PCT/CN2015/090695
Authority: WO
Inventors: 李岩
Original assignee: 华为技术有限公司
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2017-03-30
Also published as: CN107211400A; CN107211400B

Abstract

Embodiments of the present invention relate to a network admission control method and device. The method comprises: establishing a scheduling rule corresponding to a first traffic flow when determining, according to user subscription information and/or a service authorization rule, to accept an admission control request, wherein the first traffic flow is a traffic flow corresponding to the admission control request; and transmitting the scheduling rule to an access point (AP), so that the AP schedules the first traffic flow according to the scheduling rule. When the current channel free time of the AP is insufficient, the channel time occupied by a low-priority traffic flow can further be released to ensure quality of service of a high-priority traffic flow, thereby avoiding misuse of WLAN network resources by unauthorized users or services.

Description

Network admission control method, access point and access controller

Technical field

The present invention relates to the field of communications, and in particular, to a network admission control method, an access point, and an access controller.

Background technique

With the continuous maturity and development of Wireless Local Area Networks (WLAN) technology, centralized control WLAN networks (AC+FIT AP architecture) have been widely used.

The 802.11 protocol defines the 802.11 protocol. The 802.11 protocol defines the QoS of the access point (AP). The access mechanism of the infinite local area network, that is, when the STA initiates a service that requires bandwidth and delay guarantee, the STA sends an admission control request to the AP, requesting the corresponding bandwidth and delay, and the AP according to the current resource usage. Decide whether to accept the admission control request. If the request is accepted, the AP allocates a specific resource for the request to guarantee the QoS of the service initiated by the STA.

In the prior art, when the STA and the AP perform the network admission control interaction, the admission control request is completely dependent on the initiation of the STA, and the STA is required to determine the QoS requirement required by the service initiated by the STA, and the requirement is required. The AP is transmitted as an admission control request to the AP. When the STA does not initiate the admission control request, the AP cannot obtain service information as a forwarding device. The channel time cannot be allocated independently to guarantee the QoS of the service.

Summary of the invention

The embodiment of the invention provides a network admission control method, an access point and an access controller, which are connected. When the access controller (AC) determines to accept the admission control request carried in the first request message according to the user subscription information or the service authorization rule, the AP is instructed to establish a scheduling rule to perform the service flow corresponding to the admission control request. Scheduling transmissions, thereby avoiding WLAN network resources being abused by unauthorized users or services.

In a first aspect, the present invention provides a network admission control method, including: establishing and first service flow when an access controller AC determines to accept an admission control request according to user subscription information and/or service authorization rules. Corresponding scheduling rule, where the first service flow is a service flow corresponding to the admission control request;

And sending the scheduling rule to the access point AP, so that the AP schedules the first service flow according to the scheduling rule.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining, according to the user subscription information and/or the service authorization rule, the accepting the admission control request includes:

Determining a time when the channel is occupied when the first service flow is transmitted, when determining that the service quality guarantee is provided according to the user subscription information and/or the service authorization rule;

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, to obtain a comparison result;

Based on the comparison result, it is determined to accept the admission control request.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining, according to the comparison result, the accepting the admission control request includes:

The admission control request is accepted when the comparison result is that the time when the first traffic flow is occupied by the channel is less than or equal to the current spare time of the channel.

In conjunction with the first possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the determining, according to the comparison result, the accepting the admission control request includes:

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, determining that the second service flow exists, and the second priority level corresponding to the second service flow is lower than the second priority Sending, by the first priority level corresponding to the first service flow, the first indication information to the AP, where The first indication information is used to indicate a time when the AP releases the channel occupied by the second service flow;

After receiving the acknowledgement information sent by the AP that has released the time occupied by the second service flow, the admission control request is accepted.

In conjunction with the second possible implementation manner of the first aspect, or the third possible implementation manner, in a fourth possible implementation manner of the first aspect, the method further includes: when establishing the first service flow After the corresponding scheduling rule, the free time of the channel is updated.

In conjunction with the first aspect to any one of the third possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the admission control request is sent by the AP or the network side The device sends.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, when the admission control request is sent by the network side device, and the admission control request is The method further includes: sending, to the AP, second indication information, where the second indication information is used by the AP to send uplink classification information to the wireless station STA.

In a second aspect, the present invention provides a network admission control method, the method includes: an access point AP receiving a resource request message sent by an access controller AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request includes parameter information, where the first service flow is a service flow corresponding to the admission control request;

Determining, according to the parameter information, whether a current spare time of the channel satisfies the admission control request;

Establishing a scheduling rule corresponding to the first service flow when determining that a current spare time of the channel satisfies the admission request;

When it is determined that the current idle time of the channel does not satisfy the admission control request, release, according to the first priority level, a time for transmitting a current service flow occupying channel, so as to satisfy the admission control request, where The current service flow corresponds to a lower priority than the first priority.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining, according to the parameter information, whether the current vacant time of the channel meets the admission control request includes:

Determining, according to the parameter information, a time when the channel is occupied when the first service flow is transmitted;

And determining, according to the comparison result, whether the current spare time of the channel satisfies the admission control request.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the determining, according to the comparison result, whether the current idle time of the channel meets the admission control Requests, including:

Determining that the current spare time of the channel satisfies the admission control request, when the comparison result is that the time when the first service flow occupied channel is less than or equal to the current idle time of the channel;

When the comparison result is that the time occupied by the first service flow is greater than the current spare time of the channel, it is determined that the current spare time of the channel does not satisfy the admission control request.

With reference to the second aspect to any one of the second possible implementation manners of the second aspect, in the third possible implementation manner of the second aspect, the resource request message further includes: transmitting the first The lowest physical layer rate at the time of traffic flow.

With reference to any one of the second aspect to the second possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the method further includes: when establishing and the first After the scheduling rule corresponding to the service flow, the free time of the channel is updated.

With reference to any one of the second aspect to the second possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the method further includes: when the admission control request is Receiving the indication information sent by the AC when the uplink admission control request is received;

And transmitting uplink classification information to the wireless station STA according to the indication information.

In a third aspect, the present invention provides a network admission control method, which includes: determining to send a resource request message to an access point AP according to user subscription information and/or a service authorization rule, where The resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request includes parameter information, so that the AP determines a current free time of the channel according to the parameter information. Whether the admission control request is satisfied, and a scheduling rule corresponding to the first service flow is established, where the first service flow is a service flow corresponding to the admission control request.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the determining, by using the user subscription information and/or the service authorization rule, that the sending the resource request message to the access point AP includes:

And when the serving quality guarantee is determined according to the user subscription information and/or the service authorization rule, sending the resource request message to the AP.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in the second possible implementation manner of the third aspect, the resource request message further includes: a minimum physics when the first service flow is transmitted Layer rate.

In conjunction with the third aspect, in a third possible implementation manner of the third aspect, the admission control request is sent by the AP or sent by a network side device.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, when the admission control request is sent by the network side device, and the admission control request is The method further includes: sending, to the AP, indication information, where the indication information is used by the AP to send uplink classification information to the wireless station STA.

In a fourth aspect, the present invention provides an access controller, where the access controller includes: a processor and a transmitter;

The processor is configured to: when the admission control request is determined according to the user subscription information and/or the service authorization rule, establish a scheduling rule corresponding to the first service flow, where the first service flow is the admission control Request the corresponding business flow;

The transmitter is configured to send the scheduling rule established by the processor to the access point AP, so that the AP schedules the first service flow according to the scheduling rule.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, Body for:

In conjunction with the first possible implementation of the fourth aspect, in a second possible implementation manner of the fourth aspect, the determining, by the processor, the accepting the admission control request, according to the comparison result, includes:

In conjunction with the first possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the determining, by the processor, the accepting the admission control request, according to the comparison result, includes:

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, determining that the second service flow exists, and the second priority level corresponding to the second service flow is lower than the second priority The first priority level corresponding to the first service flow, the first indication information is sent to the AP, where the first indication information is used to indicate that the AP releases the time occupied by the second service flow;

With reference to the second possible implementation manner of the fourth aspect, or the third possible implementation manner, in a fourth possible implementation manner of the fourth aspect, the processor is further configured to: when establishing and the first After the scheduling rule corresponding to the service flow, the free time of the channel is updated.

With reference to any one of the fourth aspect to the third possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the admission control request is performed by the AP or the network side device send.

With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, when the admission control request is sent by the network side device, and the admission control request is The uplink device is further configured to: send, to the AP, second indication information, where the second indication information is used by the AP to send uplink classification information to the wireless station STA.

In a fifth aspect, the present invention provides an access point, where the access point includes: a receiver, a processor;

The receiver is configured to receive a resource request message sent by the access controller AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request is Include parameter information, where the first service flow is a service flow corresponding to the admission control request;

The processor is configured to determine, according to the parameter information, whether a current spare time of the channel satisfies the admission control request;

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the processor is specifically configured to:

In conjunction with the first possible implementation of the fifth aspect, the second possible implementation in the fifth aspect In the current mode, the processor determines, according to the comparison result, whether the current spare time of the channel satisfies the admission control request, including:

With reference to any one of the fifth aspect to the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the resource request message further includes: transmitting the first The lowest physical layer rate at the time of traffic flow.

With reference to any one of the fifth aspect to the second possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the processor is further configured to: when After the scheduling rule corresponding to a service flow, the spare time of the channel is updated.

With reference to any one of the fifth aspect to the second possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the access point further includes a transmitter, when the When the incoming control request is an uplink admission control request,

Receiving, by the receiver, indication information sent by the AC;

The transmitter is configured to send uplink classification information to the wireless station STA according to the indication information.

In a sixth aspect, the present invention provides an access controller, where the access controller includes: a processor and a transmitter;

The processor is configured to: send a resource request message to the access point AP according to the user subscription information and/or the service authorization rule, where the resource request message includes an admission control request, and a first corresponding to the first service flow a priority level, the admission control request includes parameter information, so that the AP determines, according to the parameter information, whether a current spare time of the channel satisfies the admission control Requesting, and establishing a scheduling rule corresponding to the first service flow, where the first service flow is a service flow corresponding to the admission control request;

The transmitter is configured to send a resource request message to the AP.

In conjunction with the sixth aspect, in a first possible implementation manner of the sixth aspect, the processor is specifically configured to:

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in the second possible implementation manner of the sixth aspect, the resource request message further includes: a minimum physics when the first service flow is transmitted Layer rate.

In conjunction with the sixth aspect, in a third possible implementation manner of the sixth aspect, the admission control request is sent by the AP or sent by a network side device.

With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, when the admission control request is sent by the network side device, and the admission control request is The uplink device is further configured to: send, to the AP, indication information, where the indication information is used by the AP to send uplink classification information to a wireless station STA.

Based on the foregoing technical solution, a network admission control method, an access point, and an access controller provided by an embodiment of the present invention acquire user subscription information and/or service authorization rules through an AC, and according to user subscription information or service authorization rules. When it is determined that the admission control request is accepted, the AP is instructed to establish a scheduling rule to perform scheduling transmission on the service flow corresponding to the admission control request, thereby preventing the WLAN network resource from being abused by the unauthorized user or service.

DRAWINGS

1 is a network structure diagram of a centralized control type WLAN network in the prior art;

FIG. 2 is a schematic process interaction diagram of a network admission control method 200 according to Embodiment 1 of the present invention;

FIG. 3 is a schematic process interaction diagram of another network admission control method 300 according to Embodiment 2 of the present invention;

FIG. 4 is a schematic flowchart of a network admission control method 400 according to Embodiment 3 of the present invention;

FIG. 5 is a schematic process interaction diagram of another network admission control method 500 according to Embodiment 5 of the present invention;

FIG. 6 is a schematic process interaction diagram of another network admission control method 600 according to Embodiment 6 of the present invention;

FIG. 7 is a flowchart of another network admission control method 700 according to Embodiment 7 of the present invention;

FIG. 8 is a flowchart of another network admission control method 800 according to Embodiment 9 of the present invention;

FIG. 9 is a schematic structural diagram of an admission control apparatus according to Embodiment 10 of the present invention; FIG.

FIG. 10 is a schematic structural diagram of another admission control apparatus according to Embodiment 11 of the present invention; FIG.

11 is a schematic structural diagram of an admission control apparatus according to Embodiment 12 of the present invention;

FIG. 12 is a schematic structural diagram of an access controller according to Embodiment 13 of the present invention;

FIG. 13 is a schematic structural diagram of an access point according to Embodiment 14 of the present invention;

FIG. 14 is a schematic structural diagram of an access controller according to Embodiment 15 of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a network structure diagram of a centralized control type WLAN network in the prior art. As shown in FIG. 1 , the network structure includes a wireless workstation (STA), an access controller (AC), an access point (AP), a gateway (Gateway), and a Deep Packet Inspection (DPI) device. , And the application server (App Server). The AP acts as the forwarding plane device and is responsible for encrypting, decrypting, and forwarding packets. The centralized deployment of the AC is performed as a control plane device. It is responsible for completing control functions, including configuring and managing APs, and completing user authentication, authorization, and so on. Function and maintain user subscription information; Gateway enables WLAN to connect to external networks, such as the Internet. The DPI device can exist independently or integrated in the Gateway. By deeply analyzing the contents of the packet data packet, the specific service type can be located to provide management policy support. The App Server provides various application services required by the STA.

FIG. 2 is a schematic flow interaction diagram of the network admission control method 200 according to Embodiment 1 of the present invention. As shown in FIG. 2, the method 200 includes:

210. The STA sends a first request message to the AP.

Specifically, the first request message sent by the STA to the AP carries an admission control request. If the first request message carries an admission control request for the uplink service flow, the admission control request may include a maximum delay requirement, a transmission rate, and a Media Access Control (MAC) layer data unit. a maximum length; if the first request message carries an admission control request for a downlink service flow, the admission control request includes a flow in addition to a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. A classification parameter that contains classification information for the downstream traffic flow.

The AP receives the first request message sent by the STA, and reports the first request message to the AC.

230. The AC receives the first request message sent by the AP, and determines, according to the user subscription information and/or the service authorization rule, the admission control request that is accepted by the first request message.

Specifically, the AC receives the admission control request in the first request message sent by the AP. And when receiving the first request message, determining, according to the user subscription information and/or the service authorization rule, whether to provide the QOS security for the first service flow corresponding to the admission control request carried by the first request message, when determining the service flow When the QOS guarantee is provided, according to the information in the admission control request (mainly according to the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit, etc.), the time and scheduling period of the channel required to transmit the service flow are calculated.

Comparing the time of transmitting the AP channel occupied by the first service flow with the current spare time of the channel, and obtaining a comparison result. Whether to accept the admission control request carried by the first request message is determined according to the comparison result.

For example, when the comparison result is that the time when the channel occupied by the first service flow is transmitted is less than or equal to the current spare time of the channel, the admission control request is accepted.

When the above comparison result is: the time for transmitting the channel occupied by the first service flow is obviously greater than the current spare time of the AP channel. At this time, the AC first determines whether the second service flow exists, and determines that the second priority level corresponding to the second service flow is lower than the first priority level corresponding to the first service flow, and if yes, sends the first indication information to the AP. The first indication information is used to indicate the channel time occupied by the AP to release the second service flow; after receiving the acknowledgement information of the time that the AP has released the channel occupied by the second service flow, accepting the access corresponding to the first service flow Control request.

It should be understood that the second priority level corresponding to the second service flow introduced in the foregoing is actually the priority level corresponding to the scheduling rule established by the AC according to the second service flow, and the priority level is saved in the AC after the scheduling rule is established. of.

Further, the second priority level corresponding to the determining the second service flow is lower than the first priority level corresponding to the first service flow, and specifically, the priority of the scheduling rule corresponding to the second service flow is determined to be low. At the first priority level.

In addition, it should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after determining that the first service flow is provided with the QOS security according to the user subscription information and/or the service authorization rule.

The process of obtaining the first comprehensive priority is as follows:

According to the service authorization rule, the priority relationship corresponding to different service flows can be determined; according to the user subscription information, the priority relationship corresponding to the subscription user can be determined.

When there is only a service authorization rule, the AC may use the priority level corresponding to the first service flow as the first comprehensive priority according to the service authorization rule.

Or, when there is only user subscription information, the AC can sign the information according to the user and the user The corresponding priority level is taken as the first comprehensive priority;

When the user subscription information and the service authorization rule exist at the same time, the AC will combine the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive priority.

In a specific example, the first service flow is a video stream, the transmission rate is 2 Mb/s, the maximum delay requirement is 20 ms, and the maximum length of the MAC layer data unit is 1000 bytes, and the maximum transmission rate of the physical layer at this time. For 50 Mb/s, the AC can calculate the time of each occupied channel for transmitting the service flow:

(Formula 2-1)

The service flow has a scheduling period of 20 ms. That is, the AC can instruct the AP to schedule the service flow every 20 ms, and transmit the service flow in 0.8 ms. The size of the packet transmitted each time is:

0.8ms × 50Mb / s = 4000 (bytes) (Equation 2-2)

At this time, if the vacant time in the current scheduling period of the AP channel is 4 ms, that is, the time of transmitting the channel occupied by the first service flow is less than the current vacant time of the AP channel, the admission control request corresponding to the service flow may be accepted. .

If the current idle time of the AP channel is 0.5 ms, the AC first determines whether there is a second service flow, and determines that the priority of the scheduling rule corresponding to the second service flow is lower than the first priority corresponding to the first service flow. For example, when it is determined that the second service flow exists and is a voice service flow, the first indication information is sent to the AP, where the first indication information is used to indicate that the AP releases the channel occupied by the voice service flow, and the received AP sends the release information. After the confirmation information of the time of the channel occupied by the voice service flow, the access control request corresponding to the video stream is accepted.

240. When the AC determines to accept the service access control request corresponding to the first request message, establish a scheduling rule corresponding to the first service flow.

Specifically, when the AC determines to accept the service access control corresponding to the first request message, the scheduling rule corresponding to the first service flow is established, where the first service flow is a service flow corresponding to the admission control request. In the scheduling rule, a scheduling period may be included, and the time allocated for each scheduling.

Optionally, the scheduling rule may further include a scheduling start time.

In addition, when the AC determines to accept the admission control request corresponding to the first request message, it also needs to determine the information of the user equipment corresponding to the scheduling rule, so that the AP is the user equipment in each scheduling period according to the information of the user equipment. Allocating the sending time of the uplink service flow, and sending the sending time to the user equipment; or determining the information of the downlink service flow corresponding to the scheduling rule, so that the AP is the downlink according to the information of the downlink service flow in each scheduling period. The service flow allocates the transmission time, and sends the downlink service flow to the user equipment that determines to download the downlink service flow.

250. The AC sends the scheduling rule to the AP, so that the AP can schedule the service flow according to the scheduling rule.

260. The AP receives a scheduling rule sent by the AC.

270. The AC sends a response message corresponding to the first request message to the AP.

Optionally, the response message may include a scheduling start time and a scheduling period.

280. The AP receives the response message sent by the AC, and forwards the response message to the STA.

It should be understood that, in step 250, the AC sends a scheduling rule to the AP, and in step 270, the AC sends a response message corresponding to the first request message to the AP, which may also be completed in only one step, similarly, based on this, step 260 and Step 280 can also be accomplished in one step. The specific process is similar and will not be described here.

It should also be understood that the subsequent AP performs scheduling processing on the uplink service flow or the downlink service flow according to the scheduling rule, and the STA uploads or downloads the service flow, which is equivalent to the prior art, and details are not described herein again.

It should also be understood that, before step 210, the method may further include: Step 205: The AC generates a forwarding principle for configuring the AP.

Specifically, the AC generates the forwarding principle of the AP. When the AP receives the request message sent by the STA as a specific message, it needs to report it to the AC for processing according to the forwarding principle of the AC. For example, in this embodiment, The first request message, when the AP receives the request message, will report the message directly to the AC, while other non-specific messages are processed by the AP.

Or the AP can report certain specific messages directly to the default principle. AC processing.

Further, after step 240, step 245 may be further included, after the scheduling rule corresponding to the first service flow is established, the AC updates the spare time of the channel, so that the AC processes other control request information according to the spare time of the channel, thereby improving work efficiency. .

It should be noted that the vacant time of the AC update channel mentioned in step 245 is: after determining to accept the admission control request, establishing a scheduling rule corresponding to the first service flow, and the AC has already allocated the first service flow to be transmitted. After the required channel time, the current free time of the channel is updated.

A network admission control method is provided by the first embodiment of the present invention. The AC determines to accept the admission control request carried in the first request message according to the user subscription information and/or the service authorization rule. Establishing a scheduling rule, and sending the scheduling rule to the AP, so that the AP performs scheduling transmission on the service flow corresponding to the admission control request; and when the AP channel resource is insufficient, the AC may also indicate the low priority service released by the AP. The channel time occupied by the flow preferentially guarantees the quality of service of the high-priority service flow, thereby avoiding the WLAN network resource being abused by the unauthorized user or service.

FIG. 3 is a schematic process interaction diagram of another network admission control method 300 according to Embodiment 2 of the present invention. As shown in FIG. 3, the method 300 includes:

310. The AC receives a first request message from a network side device, where the network side device may include a DPI device or an App Server.

320. Determine, according to the user subscription information and/or the service authorization rule, the admission control request that is accepted by the first request message.

Specifically, when the AC receives the first request message, it determines, according to the user subscription information and/or the service authorization rule, whether to provide the QOS security for the first service flow corresponding to the admission control request, and when determining to provide the QOS for the service flow. During the guarantee, according to the information in the admission control request (mainly according to the maximum delay requirement, the transmission rate and the maximum length of the MAC layer data unit, etc.), the time and scheduling period of the channel required to transmit the service flow are calculated. Comparing the time of transmitting the AP channel occupied by the first service flow with the current spare time of the channel, and obtaining a comparison result. Determine according to the comparison result Accept the admission control request carried by the first request message.

When the above comparison result is: the time for transmitting the channel occupied by the first service flow is obviously greater than the current spare time of the AP channel. At this time, the AC first determines whether there is a second service flow, and determines that the second priority level corresponding to the second service flow is lower than the first priority level corresponding to the first service flow. If yes, the first indication information is sent to the AP, where the first indication information is used to indicate the channel time occupied by the AP to release the second service flow, and the confirmation information of the time that the AP has sent the channel occupied by the second service flow is received. Afterwards, the admission control request corresponding to the first service flow is accepted.

It should be understood that the second priority level corresponding to the second service flow introduced in the foregoing is actually the priority level corresponding to the scheduling rule established by the AC according to the second service flow. Further, the second priority level corresponding to the determining the second service flow is lower than the first priority level corresponding to the first service flow, and specifically, the priority of the scheduling rule corresponding to the second service flow is determined to be low. At the first priority level.

In addition, it should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after determining that the first service flow is provided with the QOS security according to the user subscription information and/or the service authorization rule. The process of obtaining the first comprehensive priority is as follows:

Or, when there is only the user subscription information, the AC may use the user's subscription information as the first comprehensive priority according to the user subscription information;

(Formula 3-1)

0.8ms × 50Mb / s = 4000 (bytes) (Equation 3-2)

The implementation of the steps from step 330 to step 350 is similar to the implementation of step 240 to step 260 in FIG. 2, and is not described here for brevity.

It should be noted that, when the STA downloads the downlink service flow, and when the admission control request carried by the first request message is the downlink admission control request, the AP processes the scheduling rule for the downlink service flow according to the scheduling rule, which is the same as the prior art. I won't go into details here.

When the admission control request of the first request message is an uplink admission control request, after the step 340, the method further includes: 345, the AC sends the second indication information to the AP, where the indication information is used by the AP to the wireless workstation STA. Send upstream classification information.

After step 350, the method further includes 360, the AP receives the second indication information, and according to the The indication information sends the uplink classification information to the wireless station STA.

Specifically, the AP sends a CF_POLL frame to the STA at the scheduling start time of the uplink service flow, and carries the classification information of the uplink service flow in the CF_POLL frame, so that the STA can determine the uplink service of the corresponding channel time transmission according to the classification information. Flow, and send an upstream traffic flow at a specified time according to the indication of the CF_POLL frame.

It should be understood that, in the first embodiment of the present invention, since the first request message is initiated by the STA, the STA has determined which uplink traffic flows require QOS security, so the AP does not need to be scheduled at the start time of the uplink traffic flow. The uplink classification information is included in the CF_POLL frame sent to the STA.

A network admission control method is provided by the second embodiment of the present invention. After the AC determines to accept the admission control request carried in the first request message from the network side device according to the user subscription information and/or the service authorization rule, the AC establishes a scheduling rule. And sending the scheduling rule to the AP, so that the AP performs scheduling transmission on the first service flow according to the scheduling rule; the AC may also indicate the channel time occupied by the low priority service flow released by the AP to ensure high priority service. The quality of service of the stream, thereby avoiding the WLAN network resources being abused by unauthorized users or services. In addition, the AC can obtain the admission control request carried by the first request message by using the network side device, and solves the problem that the admission control is completely dependent on the STA-initiated constraint caused by the STA.

FIG. 4 is a schematic flowchart of a network admission control method 400 according to Embodiment 3 of the present invention. The method 400 shown in FIG. 4 may be performed by an AC, and the method 400 includes:

410. When the access controller AC determines to accept the admission control request according to the user subscription information and/or the service authorization rule, establish a scheduling rule corresponding to the first service flow.

Specifically, the AC determines, according to the user subscription information and/or the service authorization rule, whether to provide QOS security for the first service flow corresponding to the admission control request, and determines that the channel is occupied when the first service flow is transmitted when determining to provide the QOS security. Time, wherein the admission control request is carried in a first request message received by the AC.

Comparing the time occupied by the channel when transmitting the first service flow with the current free time of the channel, Get the comparison result. Based on the comparison result, it is determined that the admission control request is accepted.

For example, when the comparison result is: the time when the first traffic stream occupies the channel is less than or equal to the current vacant time of the channel, the admission control request is accepted.

When the comparison result is as follows: the time when the first service flow occupies the channel is greater than the current vacant time of the channel, the AC first determines whether the second service flow exists, and determines the second priority corresponding to the second service flow. The level is lower than the first priority level corresponding to the first service flow. If yes, the first indication information is sent to the AP, where the first indication information is used to indicate the time when the AP releases the channel occupied by the second service flow; After the confirmation information of the time of the channel occupied by the second service flow, the admission control request is accepted.

Specifically, when it is determined that the admission control request is accepted, a scheduling rule corresponding to the first service flow is established. The scheduling rule may include a scheduling period and a time for each scheduling allocation.

Optionally, the scheduling rule may further include a scheduling start time.

In addition, when the AC determines to accept the admission control request, it also needs to determine the information of the user equipment corresponding to the scheduling rule, so that the AP allocates the sending time of the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment. And sending the sending time to the user equipment; or determining the information of the downlink service flow corresponding to the scheduling rule, so that the AP allocates the sending time for the downlink service flow in each scheduling period according to the information of the downlink service flow, and The downlink service flow is sent to the user equipment that determines to download the downlink service flow.

420. Send the scheduling rule to the AP, so that the AP can schedule the service flow according to the scheduling rule.

It should be noted that the admission control request may be sent by the AP or sent by the network side device.

It should be understood that, according to step 410, the admission control request is carried in the first request message, that is, the AP or the network side device sends the first request message, and the request message carries the admission control request.

Therefore, in step 410, if the AC receives the first request message sent by the AP, before the step 410, the method may further include: Step 405: The AC generates a forwarding principle for configuring the AP, when the AP receives the request message as In some specific messages, according to the forwarding principle of the AC configuration, it needs to be directly reported to the AC for processing. For example, the first request message in this embodiment, when receiving the request message, the AP will directly report the request message to the AC, and other Non-specific messages are handled by the AP itself.

The AP can also report certain specific messages to the AC for processing according to its default principle.

In step 410, if the AC receives the first request message sent by the network side device, and the admission control request carried by the first request message is an uplink admission control request, after step 420, the method may further The method includes: 430, sending second indication information to the AP, where the second indication information is used by the AP to send the uplink classification information to the wireless station STA, and the specific flowchart is as shown in FIG. 4 .

It should be understood that the existence of step 405 and step 430 is based on the source of the first request message received by the AC, and there may only be one case in the two. Although both are shown in FIG. 4, generally not At the same time.

Therefore, in the network admission control method provided by the third embodiment of the present invention, the AC determines whether to provide the service quality guarantee according to the user subscription information and/or the service authorization rule, and determines whether to accept the permission on the premise of providing the service quality guarantee. Into the control request. When it is determined that the admission control request is accepted, the AP is instructed to establish a scheduling rule, thereby preventing WLAN network resources from being abused by unauthorized users or services.

As another embodiment (Embodiment 4) of the present invention, as shown in FIG. 4, after the step 410, the method may further include: Step 415, after the scheduling rule corresponding to the first service flow is established, the channel is updated. Free time. So that the AC can process other admission control requests according to the free time of the channel, thereby improving work efficiency. The other steps are the same as those in the third embodiment, and are not described here.

It should be noted that the vacant time of the update channel mentioned in step 415 is: after the AC determines to accept the admission control request, the scheduling rule corresponding to the first service flow is established, and the AC has allocated the first service flow. After the required channel time, the current free time of the channel is updated.

FIG. 5 is a schematic flow diagram of another network admission control method 500 according to Embodiment 5 of the present invention. As shown in Figure 5, the main steps of the network element in the network structure are as follows:

510. The STA sends a first request message to the AP.

Specifically, the first request message carries an admission control request. If the first request message carries an admission control request for the uplink service flow, the admission control request may include a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit; if the first request message is The bearer control request is related to the downlink service flow, and the admission control request includes a flow classification parameter, which includes a downlink traffic flow, in addition to a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. Classification information.

520, the AP receives the first request message sent by the STA, and reports the first request message to the AC;

530. The AC receives the first request message sent by the AP, and determines to send a resource request message to the AP according to the user subscription information and/or the service authorization rule.

Specifically, the service quality assurance is determined according to the user subscription information and/or the service authorization rule, because only the subscription user or the specific service flow can obtain the service quality guarantee. Therefore, when the AC receives the first request message, it needs to determine. Whether the service flow corresponding to the admission control request carried by the first request message meets the user subscription information and/or the service authorization rule, that is, whether the service quality guarantee needs to be provided, and when it is determined that the service quality guarantee is provided, the resource request is sent to the AP. The message request message is not sent, wherein the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request includes parameter information, the first service flow It is a service flow corresponding to the admission control request.

The parameter information includes a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. So that the AP can determine whether the current idle time of the channel satisfies the admission control request according to the parameter information, and establish a scheduling rule corresponding to the first service flow if the current idle time of the channel satisfies the admission control request, where A service flow is a service flow corresponding to an admission control request.

The first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the AC determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule.

The process of obtaining the first comprehensive priority is as follows:

The AC can determine the priority relationship corresponding to different service flows according to the service authorization rule. According to the user subscription information, the priority relationship of the subscription user can be determined.

When the user subscription information and the service authorization rule exist at the same time, the AC will combine the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive optimization. First level.

Optionally, the resource request message may further include a lowest physical layer rate for transmitting the service flow. The purpose is to ensure that the time of the channel required to transmit the first service stream is calculated according to the lowest physical layer rate when the user supports multiple physical layer rates. The quality of service of this business flow.

Further, optionally, the resource request message may further include a time constraint for transmitting the first service flow, so as to enable the AP to establish a scheduling rule within a specified time, for example, to establish a scheduling corresponding to the service flow within 50 ms. rule.

In addition, the resource request message may further include information about the user equipment corresponding to the scheduling rule, so that the AP allocates the sending time of the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment, and sends the sending time. Sending to the user equipment; or information of the downlink service flow corresponding to the scheduling rule, so that the AP allocates a transmission time for the downlink service flow in each scheduling period according to the information of the downlink service flow, and sends the downlink service flow to the determined download. User equipment of the downlink service flow.

540. The AP receives a resource request message sent by the AC.

Specifically, the content included in the resource request message is the same as that described in step 530. For brevity of description, details are not described herein again.

550. The AP determines, according to the parameter information, whether the current idle time of the channel satisfies the admission control request.

Specifically, the AP determines the time and scheduling period of occupying the channel when transmitting the first service flow according to the parameter information described above (mainly according to the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit in the parameter information, and the like). Comparing the time of the AP channel occupied by transmitting the first service flow with the current spare time of the channel, and obtaining a comparison result. According to the comparison result, it is determined whether the current spare time of the AP channel satisfies the admission control request.

For example, when the comparison result is that the time when the first traffic flow is occupied by the channel is less than or equal to the current spare time of the channel, it may be determined that the current free time of the channel satisfies the admission control request.

When the comparison result is that the time occupied by the first service flow is greater than the current free time of the channel, Determining that the current idle time of the channel does not satisfy the admission control request, and the AP will release the channel time occupied by the current service flow to meet the requirement of the admission control request, where the current service flow corresponds to the priority level. Below the first priority level.

It should be noted that the current service flow is a service flow that currently occupies a channel time in the AP, and the priority level corresponding to the service flow may be regarded as a priority level of the scheduling rule established by the AP according to the service flow, and the scheduling rule takes precedence. The level is already stored in the AP, and the priority level corresponding to the scheduling rule is lower than the priority level corresponding to the first service flow.

For example, in a specific example, the first service flow is a video stream, the transmission rate is 2 Mb/s, the maximum delay requirement is 20 ms, and the maximum length of the MAC layer data unit is 1000 bytes, and the physical layer is the largest at this time. The transmission rate is 50 Mb/s, and the AC can calculate the time of each occupied channel for transmitting the service flow:

(Formula 5-1)

0.8ms × 50Mb / s = 4000 (bytes) (Equation 5-2)

At this time, if the vacant time of each channel of the AP channel is 4 ms, that is, the time of transmitting the channel occupied by the first service flow is less than the current vacant time of the AP channel, it can be determined that the current free time of the channel satisfies the admission control request. .

If the current idle time of the AP channel is 0.5 ms, that is, when the current idle time of the channel cannot meet the admission control request, the AP will release the channel time occupied by the voice service flow that currently occupies the AP channel, so as to satisfy the video stream. The corresponding admission control request, wherein the priority of the scheduling rule corresponding to the voice service flow is lower than the priority level corresponding to the video stream.

560. When the AP determines that the current spare time of the channel satisfies the admission control request, establish a scheduling rule corresponding to the first service flow.

Specifically, when the AP determines that the current spare time of the channel satisfies the admission control request, a scheduling rule corresponding to the first service flow is established to schedule the service flow. Among them, the schedule The scheduling period can be included, as well as the time allocated for each scheduling.

Optionally, the scheduling rule may further include a scheduling start time.

570. The AP sends a response message to the AC.

Specifically, after the AP establishes a scheduling rule corresponding to the first service flow, the AP may send the response information to the AC. Optionally, the response information may include a scheduling start time and a scheduling period.

Further optionally, the scheduling start time included in the response information needs to meet the time constraint of transmitting the first service flow introduced in step 540. If the parameter information in step 540 does not include the time constraint, the AP may also determine the scheduling start time by itself.

580. The AC sends a response message corresponding to the first request message to the AP.

Specifically, the response message sent by the AC to the AP may include a scheduling start time and a scheduling period, so that the AP forwards the response message to the STA.

It should be understood that the subsequent AP performs scheduling processing on the uplink service flow or the downlink service flow according to the scheduling rule, and the STA uploads or downloads the service flow, which is equivalent to the prior art, and details are not described herein again.

It should also be understood that, before step 510, the method may further include: Step 505: The AC generates a forwarding principle for configuring the AP.

Specifically, the AC generates the forwarding principle of the AP. When the AP receives the request message sent by the STA as a specific message, the AP needs to directly report it to the AC according to the forwarding principle of the AC. For example, in the embodiment. When a request message is received, the AP will report the request message directly to the AC, while other non-specific messages are processed by the AP.

Further, after the step 560, the method may further include the step 565, after the scheduling rule corresponding to the first service flow is established, the AP updates the spare time of the channel, so that the AP processes other control request information according to the spare time of the channel, thereby improving work efficiency. .

It should be noted that, the spare time of the AP update channel mentioned in step 565 refers to: establishing a scheduling rule corresponding to the first service flow, and allocating the channel time required for transmitting the first service flow, Update the remaining idle time of the current channel.

The network admission control method provided by the fifth embodiment of the present invention, the AC determines to provide the service quality guarantee according to the user subscription information and/or the service authorization rule, and sends a resource request message to the AP, where the resource request message includes an admission control request, and The first priority level corresponding to the first service flow. The AP establishes a scheduling rule according to the parameter information in the admission control request when determining that the current idle time of the channel satisfies the admission control request, and the AP can also release the current low priority service flow when the idle time of the current channel is insufficient. The occupied channel time guarantees the quality of service of the high priority traffic, thus avoiding the WLAN network resources being abused by unauthorized users or services.

FIG. 6 is a schematic flow diagram of another network admission control method 600 according to Embodiment 6 of the present invention. As shown in FIG. 6, the method 600 includes:

610. The AC receives the first request message from a network side device, where the network side device may include a DPI device or an App Server.

620. Determine to send a resource request message to the AP according to the user subscription information and/or the service authorization rule.

The parameter information includes the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit. degree. So that the AP can determine whether the current idle time of the channel satisfies the admission control request according to the parameter information, and establish a scheduling rule corresponding to the first service flow if the current idle time of the channel satisfies the admission control request, where A service flow is a service flow corresponding to an admission control request. The first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the AC determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. The process of obtaining the first comprehensive priority is as follows:

Optionally, the resource request message may further include a lowest physical layer rate for transmitting the first service flow. The purpose is to ensure that the time of the channel required to transmit the first service stream is calculated according to the lowest physical layer rate when the user supports multiple physical layer rates. The quality of service of this business flow.

Further, optionally, the resource request message may further include a time constraint for transmitting the first service flow, so as to enable the AP to establish a scheduling rule within a specified time, for example, establishing a scheduling rule corresponding to the service flow within 50 ms. .

In addition, the resource request message may further include information about the user equipment corresponding to the scheduling rule, so that the AP allocates the sending time of the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment, and sends the sending time. Sending to the user equipment; or information of the downlink service flow corresponding to the scheduling rule, so that the AP is in the next scheduling period according to the information of the downlink service flow. The line service flow allocates the transmission time, and sends the downlink service flow to the user equipment that determines to download the downlink service flow.

Steps 630 to 660 are similar to the implementations of steps 540 to 570 in the above embodiment, and are not described herein again.

It should be noted that, when the STA downloads the downlink service flow, and when the admission control request carried by the first request message is the downlink admission control request, the scheduling rule is processed according to the scheduling rule, which is the same as the prior art. No longer.

When the admission control request carried by the first request message is an uplink admission control request, after the step 660, the method further includes: 670, the AC sends the indication information to the AP, where the indication information is used by the AP to send the uplink to the wireless workstation STA. Flow classification information.

And in step 680, the AP receives the indication information, and sends the uplink classification information to the STA.

Specifically, when the admission control request carried by the first request message is an uplink admission control request, the AP carries the classification information of the uplink service flow to the ST CF_POLL frame at the scheduling start time of the uplink service flow, so that the STA can The classification information determines an uplink service flow that is transmitted by the corresponding channel time, and sends an uplink service flow at a specified time according to the indication of the CF_POLL frame.

It should be understood that, in the fifth embodiment of the present invention, since the first request message is initiated by the STA, the STA has determined which uplink traffic flows require QOS security, so the AP does not need to be scheduled at the start time of the uplink traffic flow. The uplink classification information is included in the CF_POLL frame sent to the STA.

The network admission control method provided by the sixth embodiment of the present invention, the AC determines to provide the service quality guarantee according to the user subscription information or the service authorization rule, and sends a resource request message to the AP, where the resource request message includes an admission control request, and The first priority level corresponding to the first service flow. The AP establishes a scheduling rule according to the parameter information in the admission control request when determining that the current idle time of the channel satisfies the admission control request, and if the current free channel time is insufficient, the AP may also release the current low priority service flow. The occupied channel time is used to guarantee the quality of service of the high-priority service flow, thereby avoiding the WLAN network resources being abused by unauthorized users or services. In addition, the AC can obtain the admission control request carried by the first request message by using the network side device, and the access control is completed. Fully dependent on the problem of excessive constraint caused by STA initiation

FIG. 7 is a flowchart of another network admission control method 700 according to Embodiment 7 of the present invention. The method shown in FIG. 7 may be performed by an AP, and the method 700 includes:

710. The access point AP receives a resource request message sent by the access controller AC.

Specifically, the AP receives the resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request includes parameter information, the first service flow. Is the service flow corresponding to the admission control request.

The parameter information includes a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. In order to determine whether the current free time of the channel satisfies the admission control request according to the parameter information.

The process of obtaining the first comprehensive priority is as follows:

Optionally, the resource request message may further include a lowest physical layer rate for transmitting the first service flow, where the purpose is to calculate a time required for transmitting the first service flow when the user supports multiple physical layer rates. When calculated according to the lowest physical layer rate, it can be guaranteed that the service quality of the service flow can still be guaranteed under the worst channel condition.

720. Determine, according to the parameter information, whether the current spare time of the channel satisfies the admission control request.

Specifically, the AP determines the time and scheduling period of occupying the channel when transmitting the first service flow according to the parameter information described above (mainly according to the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit in the parameter information, and the like). The time of the channel occupied when the first service flow is transmitted is compared with the current free time of the channel, and a comparison result is obtained. According to the comparison result, it is determined whether the current spare time of the AP channel satisfies the admission control request.

730. When it is determined that the current spare time of the channel satisfies the admission request, establish a scheduling rule corresponding to the first service flow.

Specifically, when the comparison result is that the time when the first service flow occupies the channel is less than or equal to the current vacant time of the channel, it may be determined that the current vacant time of the channel satisfies the requirement of the admission control request. Then, a scheduling rule corresponding to the first service flow is established to schedule the service flow.

740. When it is determined that the current idle time of the channel does not satisfy the admission control request, release the time for transmitting the current service flow occupation channel according to the first priority level.

Specifically, when the comparison result is that the time occupied by the first service flow is greater than the current idle time of the channel, the AP releases the channel time occupied by the current service flow according to the first priority level, so as to meet the admission control request. The demand, wherein the current service flow corresponds to a lower priority than the first priority.

It should be noted that the current service flow is a service flow that currently occupies a channel time in the AP, and the priority level corresponding to the service flow may be regarded as a priority level of the scheduling rule established by the AP according to the service flow, and the scheduling rule takes precedence. The level has been stored in the AP.

It should be noted that, when the admission control request is an uplink admission control request, the method further includes: 750: receiving indication information sent by the AC; and sending the uplink classification information to the wireless station STA according to the indication information.

The network admission control method provided by the seventh embodiment of the present invention receives the resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, and according to the standard The parameter information in the incoming control request determines that the current free time of the channel satisfies the admission control request, and establishes a scheduling rule to perform scheduling transmission on the service flow corresponding to the admission control request; if the current channel time is insufficient, the AP may also release the current The channel time occupied by the low-priority service flow ensures the quality of service of the high-priority service flow, thereby preventing the WLAN network resources from being abused by unauthorized users or services.

As another embodiment of the present invention (Embodiment 8), as shown in FIG. 7, after step 740, the method may further include: Step 745, after establishing a scheduling rule corresponding to the first service flow, the AP is updated. The free time of the channel to process other admission control requests based on the free time of the channel, thereby improving work efficiency. The other steps are the same as those in the seventh embodiment, and are not described here.

It should be noted that the spare time of the AP update channel mentioned in step 745 refers to: establishing a scheduling rule corresponding to the first service flow, and allocating the channel time required for transmitting the first service flow, and updating the current channel. The remaining free time.

FIG. 8 is a flowchart of another network admission control method 800 according to Embodiment 9 of the present invention. As shown in FIG. 8, the method 800 may be performed by an AC:

810. The access controller AC determines to send a resource request message to the access point AP according to the user subscription information and/or the service authorization rule.

Specifically, the AC determines, according to the user subscription information and/or the service authorization rule, whether to provide the service quality guarantee for the first service flow corresponding to the admission control request, because only the subscription user or the specific service flow can obtain the service quality guarantee. Therefore, the AC needs to determine whether the service flow corresponding to the admission control request meets the user subscription information and/or the service authorization rule, that is, whether the service quality guarantee needs to be provided, and when it is determined that the service quality guarantee is provided, the resource request message is sent to the AP; Otherwise, the resource request message is not sent, wherein the resource request message includes an admission control request and a first priority level corresponding to the first service flow, wherein the admission control request includes parameter information.

The parameter information includes a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit, so that the AP can determine whether the current idle time of the channel satisfies the admission control request according to the parameter information, and establish a scheduling corresponding to the first service flow. A rule, wherein the first service flow is a service flow corresponding to the admission control request.

It should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the AC determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. The process of generating the first comprehensive priority is as follows:

Further, the admission control request is sent by the AP or sent by the network side device.

It should be understood that the admission control request is actually carried in the first request message received by the AC. That is, the AC actually receives the first request message sent by the AP or the first request message sent by the network side device, and the request message carries the admission control request.

Therefore, if the AC receives the first request message sent by the AP, before the step 810, the method may further include: Step 805: The AC generates a forwarding principle for configuring the AP. When the request message received by the AP is a specific message, the AP needs to directly report it to the AC for processing according to the forwarding principle of the AC, for example, the first request message in this embodiment, when the AP receives the request message, It will be reported directly to the AC, while other non-specific messages are handled by the AP itself.

In step 810, if the AC receives the first request message sent by the network side device, and When the admission control request carried by the first request message is an uplink admission control request, the method may further include: 820, sending, to the AP, indication information, where the indication information is used by the AP to send the uplink classification information to the wireless station STA, where the specific process is as follows: Figure 8 shows.

It should be understood that the existence of step 805 and step 820 is based on the source of the first request message received by the AC, and there may only be one case in the two, although both are shown in FIG. 8, but generally not At the same time.

The network admission control method provided by the ninth embodiment of the present invention, the AC determines to provide the service quality guarantee according to the user subscription information and/or the service authorization rule, and sends a resource request message to the AP, where the resource request message includes the admission control request. And a first priority level corresponding to the first service flow, so that the AP can determine, according to the parameter information in the admission control request, that the current spare time of the channel satisfies the admission control request, and establish a scheduling rule corresponding to the first service flow. Therefore, WLAN network resources are prevented from being abused by unauthorized users or services.

FIG. 9 is a schematic structural diagram of an admission control apparatus according to Embodiment 10 of the present invention. The apparatus is mainly directed to an access controller AC. As shown in FIG. 9, the admission control apparatus includes: a processing unit 901 and Transmitting unit 902.

The processing unit 901 is configured to establish a scheduling rule corresponding to the first service flow when determining to accept the admission control request according to the user subscription information and/or the service authorization rule. Specifically, the processing unit 901 determines, according to the user subscription information and/or the service authorization rule, whether to provide the QOS security for the first service flow corresponding to the admission control request, and determines that the first service flow is occupied when determining to provide the QOS security. The time of the channel.

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, obtaining a comparison result, and determining to accept the admission control request according to the comparison result.

When the comparison result described above is: the time when the first traffic stream occupies the channel is greater than the current channel The vacant time, at this time, the processing unit 901 first determines whether there is a second service flow, and determines that the second priority level corresponding to the second service flow is lower than the first priority level corresponding to the first service flow, if yes, The sending unit 902 sends the first indication information to the AP, where the first indication information is used to indicate the time when the AP releases the channel occupied by the second service flow.

Optionally, the device may further include a receiving unit 903, configured to: after receiving the acknowledgement information sent by the AP that has released the channel occupied by the second service flow, send the acknowledgement information to the processing unit 901, where the processing unit 901 is configured. According to the confirmation information, the admission control request is accepted.

It should be understood that the second priority level corresponding to the second service flow introduced above is actually the priority level corresponding to the scheduling rule established by the processing unit 901 according to the second service flow. Further, the processing unit 901 described above determines that the second priority level corresponding to the second service flow is lower than the first priority level corresponding to the first service flow, and specifically, the scheduling rule corresponding to the second service flow is determined. The priority level is lower than the first priority level.

In addition, it should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the processing unit 901 determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. of. The process of obtaining the first comprehensive priority is as follows:

When there is only a service authorization rule, the processing unit 901 may use the priority level corresponding to the first service flow as the first comprehensive priority according to the service authorization rule.

Or, when there is only the user subscription information, the processing unit 901 may use the user subscription information as the first comprehensive priority according to the user subscription information;

When the user subscription information and the service authorization rule exist simultaneously, the processing unit 901 combines the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive priority.

Optionally, the scheduling rule may further include a scheduling start time.

In addition, when the processing unit 901 determines to accept the admission control request corresponding to the first request message, it is also required to determine information of the user equipment corresponding to the scheduling rule, so that the AP is configured according to the information of the user equipment in each scheduling period. The user equipment allocates the sending time of the uplink service flow, and sends the sending time to the user equipment; or determines the information of the downlink service flow corresponding to the scheduling rule, so that the AP is configured according to the information of the downlink service flow in each scheduling period. The downlink service flow allocates a transmission time, and sends the downlink service flow to the user equipment that determines to download the downlink service flow.

Optionally, the processing unit 901 is further configured to: after establishing a scheduling rule corresponding to the first service flow, update a spare time of the channel. Therefore, the processing unit can process other admission control requests according to the spare time of the channel, thereby improving work efficiency.

It should be noted that the vacant time of the update channel mentioned herein means that after the processing unit determines to accept the admission control request, the scheduling rule corresponding to the first service flow is established, and the first service flow is already allocated. After the required channel time, the current free time of the channel is updated.

The sending unit 902 is further configured to send the scheduling rule to the AP, so that the AP can schedule the service flow according to the scheduling rule.

It should be understood that the receiving unit 903 is further configured to receive the first request message, where the admission control request is actually carried in the first request message received by the receiving unit 903, that is, the receiving unit 903 receives the first request message sent by the AP or The first request message sent by the network side device, where the request message carries an admission control request.

Therefore, when the first request message received by the receiving unit 903 is the first request message sent by the AP, the device further includes: a configuration unit 904, configured to generate a forwarding principle of the configuration AP.

When the first request message received by the receiving unit 903 is the first request message sent by the network side device, and the admission control request carried by the first request message is an uplink admission control request, the sending unit The 902 is further configured to: send the second indication information to the AP, where the second indication information is used by the AP to send the uplink classification information to the wireless station STA, and the specific flowchart is as shown in FIG. 9.

It should be understood that at the same time, only one situation can exist for the source of the request message received by the receiving unit 903. It is generally not possible for both to occur at the same time, so subsequent execution actions based on the source of the received message are also alternative and correspond one-to-one with the source of the received message.

Therefore, in a network admission control apparatus according to Embodiment 10 of the present invention, the processing unit determines whether to provide the service quality guarantee according to the user subscription information and/or the service authorization rule, and determines whether to accept the service quality assurance. Admission control request. When it is determined that the admission control request is accepted, the AP is instructed to establish a scheduling rule, thereby preventing WLAN network resources from being abused by unauthorized users or services.

10 is a schematic structural diagram of an admission control apparatus according to Embodiment 11 of the present invention. The apparatus is mainly directed to an access point AP. As shown in FIG. 10, the admission control apparatus includes: a receiving unit 1001 and Processing unit 1002.

The receiving unit 1001 is configured to receive a resource request message sent by the access controller AC.

Specifically, the receiving unit 1001 receives the resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request includes parameter information, where A service flow is a service flow corresponding to an admission control request.

The parameter information includes a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. In order for the processing unit 1002 to determine, based on the parameter information, whether the current free time of the channel satisfies the admission control request.

The first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the AC determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. The process of obtaining the first comprehensive priority is as follows:

Further, optionally, the resource request message may further include a time constraint for transmitting the first service flow, so as to enable the processing unit 1002 to establish a scheduling rule within a specified time, for example, establishing a service flow corresponding to the service flow within 50 ms. Scheduling rules.

In addition, the resource request message may further include information about the user equipment corresponding to the scheduling rule, so that the processing unit 1002 allocates the sending time of the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment, and the The sending time is sent to the user equipment; or the information of the downlink service flow corresponding to the scheduling rule, so that the processing unit 1002 allocates the sending time for the downlink service flow in each scheduling period according to the information of the downlink service flow, and the downlink service flow is It is sent to the user equipment that determines the download of the downstream service flow.

The processing unit 1002 is configured to determine, according to the parameter information, whether the spare time of the current channel satisfies the admission control request.

Specifically, the processing unit 1002 determines, according to the parameter information described above (mainly according to the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit in the parameter information, etc.), the time and scheduling period of occupying the channel when transmitting the first service flow. . The time of the channel occupied when the first service flow is transmitted is compared with the current free time of the channel, and a comparison result is obtained. According to the comparison result, determine Whether the current spare time of the AP channel satisfies the admission control request.

When the comparison result is that the time when the first traffic flow is occupied by the channel is less than or equal to the current idle time of the channel, it may be determined that the current free time of the channel satisfies the requirement of the admission control request. Then, a scheduling rule corresponding to the first service flow is established to schedule the service flow.

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, the processing unit 1002 releases the channel time occupied by the current service flow according to the first priority level, so as to satisfy the admission control request. The demand, wherein the current service flow corresponds to a lower priority than the first priority.

It should be noted that the current service flow is a service flow that currently occupies a channel time in the AP, and the priority level corresponding to the service flow may be regarded as a priority level of the scheduling rule established by the processing unit 1002 according to the service flow, and the scheduling rule is used. The priority level has been stored in the AP.

Optionally, after the scheduling rule is established, the processing unit 1002 is further configured to update the spare time of the channel.

In order that the processing unit 1002 can process other admission control requests according to the free time of the channel, thereby improving work efficiency.

It should be noted that the spare time of the update channel mentioned here means that the processing unit updates the current remaining idle time of the channel after establishing the scheduling rule and has allocated the channel time required for transmitting the first service flow.

It should be noted that, when the admission control request is an uplink admission control request, the receiving unit 1001 is further configured to receive the indication information sent by the AC.

At this time, the device may further include a sending unit 1003, where the sending unit 1003 is configured to send the uplink classification information to the wireless station STA according to the indication information.

Specifically, the sending unit 1003 sends a CF_POLL frame to the STA at the scheduling start time of the uplink service flow, and carries the classification information of the uplink service flow in the CF_POLL frame, so that the STA can determine the corresponding channel time transmission according to the classification information. Upstream traffic flow, and according to An indication of the CF_POLL frame, which sends an upstream traffic flow at a specified time.

The network admission control apparatus provided in Embodiment 11 of the present invention receives, by the receiving unit, a resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, and is processed. The unit determines, according to the parameter information in the admission control request, that the current idle time of the channel satisfies the admission control request, and establishes a scheduling rule to perform scheduling transmission on the service flow corresponding to the admission control request; if the current channel time is insufficient, the processing unit The service quality of the high-priority service flow can be ensured by releasing the channel time occupied by the current low-priority service flow, thereby preventing the WLAN network resource from being abused by unauthorized users or services.

FIG. 11 is a schematic structural diagram of an admission control apparatus according to Embodiment 12 of the present invention. The apparatus is mainly directed to an access controller AC. As shown in FIG. 11, the admission control apparatus includes: a processing unit 1101. , sending unit 1102;

The processing unit 1101 is configured to determine, according to the user subscription information and/or the service authorization rule, that the resource request message is sent to the access point AP.

Specifically, the processing unit 1101 determines, according to the user subscription information and/or the service authorization rule, whether to provide the service quality guarantee for the first service flow corresponding to the admission control request, because only the subscription user or the specific service flow can obtain the service quality. Therefore, the processing unit 1101 needs to determine whether the service flow corresponding to the admission control request meets the user subscription information and/or the service authorization rule, that is, whether the service quality guarantee needs to be provided, and when it is determined that the service quality guarantee is provided, the sending unit is used. 1102: Send a resource request message to the AP; otherwise, the sending unit 1102 does not send a resource request message, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control The request contains parameter information.

It should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the processing unit 1101 determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. The process of generating the first comprehensive priority is as follows:

The processing unit 1101 may determine a priority relationship corresponding to different service flows according to the service authorization rule. According to the user subscription information, the priority relationship corresponding to the subscription user may be determined.

When there is only a service authorization rule, the processing unit 1101 may use the priority level corresponding to the first service flow as the first comprehensive priority according to the service authorization rule.

Or, when there is only the user subscription information, the processing unit 1101 may use the user subscription information as the first comprehensive priority according to the user subscription information;

When the user subscription information and the service authorization rule exist simultaneously, the processing unit 1101 integrates the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive priority.

It should be understood that the apparatus may further include a receiving unit 1103, configured to receive the first request message, where the admission control request is actually carried in the first request message received by the receiving unit 1103, that is, the receiving unit 1103 receives the information sent by the AP. The first request message or the first request message sent by the network side device, where the request message carries an admission control request.

If the receiving unit 1103 receives the first request message sent by the AP, the device further includes a configuration unit 1104, configured to generate a forwarding principle for configuring the AP. When the request message received by the AP is a specific message, according to the forwarding principle configured by the configuration unit 1104, it needs to be directly reported to the AC for processing, for example, the first request message in this embodiment, and the AP receives the request message. When it is reported directly to the AC, other non-specific messages are handled by the AP itself.

In addition, if the receiving unit 1103 receives the first request message sent by the network side device, and the admission control request carried by the first request message is an uplink admission control request, the sending unit 1102 is further configured to send an indication to the AP. The information indicating the information is used by the AP to send the uplink classification information to the wireless station STA. The specific process is shown in FIG. 11 .

It should be understood that at the same time, there can only be one case of the source of the request message received by the receiving unit 1103. It is generally not possible for both to occur at the same time, so subsequent execution actions based on the source of the received message are also alternative and correspond one-to-one with the source of the received message.

A schematic diagram of a network admission control apparatus according to Embodiment 12 of the present invention, the processing unit determines to provide a service quality guarantee according to the user subscription information and/or the service authorization rule, and sends a resource request message to the AP by using the sending unit, the resource The request message includes an admission control request and a first priority level corresponding to the first service flow, so that the AP can determine, according to the parameter information in the admission control request, that the current free time of the channel satisfies the admission control request, establishing and The scheduling rule corresponding to the first service flow, thereby avoiding WLAN network resources being abused by unauthorized users or services.

FIG. 12 is a schematic structural diagram of an access controller according to Embodiment 13 of the present invention, as shown in FIG. 12 As shown, the access controller includes: a processor 1201 and a transmitter 1202;

The processor 1201 establishes a scheduling rule corresponding to the first service flow when determining to accept the admission control request according to the user subscription information and/or the service authorization rule.

Specifically, the processor 1201 determines, according to the user subscription information and/or the service authorization rule, whether to provide the QOS security for the first service flow corresponding to the admission control request, and determines that the first service flow is occupied when determining to provide the QOS security. The time of the channel.

The time when the channel is occupied when the first service stream is transmitted is compared with the current spare time of the channel, and a comparison result is obtained. Based on the comparison result, it is determined that the admission control request is accepted.

When the comparison result is as follows: the time when the first service flow occupies the channel is greater than the current vacant time of the channel, at this time, the processor 1201 first determines whether the second service flow exists, and determines the second service flow corresponding to the second service flow. The second priority level is lower than the first priority level corresponding to the first service flow. If yes, the sender 1202 is notified, so that the sender 1202 sends the first indication information to the AP, where the first indication information is used to indicate the time when the AP releases the channel occupied by the second service flow.

Optionally, the access controller may further include a receiver 1203, configured to: after receiving the acknowledgement information sent by the AP that has released the channel occupied by the second service flow, send the acknowledgement information to the processor 1201, so that The processor 1201 accepts the admission control request based on the confirmation information.

It should be understood that the second priority level corresponding to the second service flow introduced above is actually the priority level corresponding to the scheduling rule established by the processor 1201 according to the second service flow. Further, the processor 1201 described above determines that the second priority level corresponding to the second service flow is lower than the first priority level corresponding to the first service flow, and specifically, the scheduling rule corresponding to the second service flow is determined. The priority level is lower than the first priority level.

In addition, it should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the processor 1201 determines that the first service flow is provided with the QOS security according to the user subscription information and/or the service authorization rule. of.

The process of obtaining the first comprehensive priority is as follows:

When there is only a service authorization rule, the processor 1201 may use the priority level corresponding to the first service flow as the first comprehensive priority according to the service authorization rule.

Alternatively, when there is only user subscription information, the processor 1201 may use the user subscription information as the first comprehensive priority according to the user subscription information;

When the user subscription information and the service authorization rule exist simultaneously, the processor 1201 combines the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive priority.

Optionally, the scheduling rule may further include a scheduling start time.

In addition, when the processor 1201 determines to accept the admission control request, it also needs to determine the information of the user equipment corresponding to the scheduling rule, so that the AP allocates the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment. And sending the time to the user equipment; or determining the information of the downlink service flow corresponding to the scheduling rule, so that the AP allocates the sending time for the downlink service flow in each scheduling period according to the information of the downlink service flow. And sending the downlink service flow to the user equipment that determines to download the downlink service flow.

Optionally, the processor 1201 is further configured to: after establishing a scheduling rule corresponding to the first service flow, update a spare time of the channel. So that the processor 1201 can process other admission control requests according to the free time of the channel, thereby improving work efficiency.

It should be noted that the spare time of the update channel mentioned herein means that after the processor 1201 determines to accept the admission control request, the scheduling rule corresponding to the first service flow is established, and the first service flow is already allocated. After the required channel time, the current free time of the channel is updated.

The sender 1202 is configured to send the scheduling rule to the AP, so that the AP can be configured according to the scheduling rule. The traffic is scheduled.

It should be understood that the receiver 1203 is further configured to receive the first request message, where the admission control request is actually carried in the first request message received by the receiver 1203, that is, the receiver 1203 receives the first request message sent by the AP or The first request message sent by the network side device, where the request message carries an admission control request.

Therefore, when the first request message received by the receiver 1203 is the first request message sent by the AP, the processor 1201 is further configured to generate a forwarding principle of the configuration AP.

When the receiver 1203 receives the first request message sent by the network side device, and the admission control request carried by the first request message is an uplink admission control request, the transmitter 1202 is further configured to: send to the AP The second indication information is used by the AP to send the uplink classification information to the wireless station STA.

It should be understood that at the same time, there can only be one case for the source of the request message received by the receiver 1203. It is generally not possible for both to occur at the same time, so subsequent execution actions based on the source of the received message are also alternative and correspond one-to-one with the source of the received message.

Therefore, in an embodiment of the thirteenth embodiment of the present invention, the processor determines whether to provide the service quality guarantee according to the user subscription information and/or the service authorization rule, and determines whether to accept the service quality assurance. Admission control request. When it is determined that the admission control request is accepted, the AP is instructed to establish a scheduling rule, thereby preventing WLAN network resources from being abused by unauthorized users or services.

FIG. 13 is a schematic structural diagram of an access point according to Embodiment 14 of the present invention. As shown in FIG. 13, the access point includes: a receiver 1301 and a processor 1302;

The receiver 1301 is configured to receive a resource request message sent by the access controller AC.

Specifically, the receiver 1301 receives a resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control The request includes parameter information, and the first service flow is a service flow corresponding to the admission control request.

The parameter information includes a maximum delay requirement, a transmission rate, and a maximum length of the MAC layer data unit. In order for the processor 1302 to determine, based on the parameter information, whether the current free time of the channel satisfies the admission control request.

Further, optionally, the resource request message may further include a time constraint for transmitting the first service flow, so as to enable the processor 1302 to establish a scheduling rule within a specified time, for example, establishing a service flow corresponding to the service flow within 50 ms. Scheduling rules.

In addition, the resource request message may further include information about the user equipment corresponding to the scheduling rule, so that the processor 1302 allocates the sending time of the uplink service flow to the user equipment in each scheduling period according to the information of the user equipment, and the Send time to the user device; or with the schedule Then, the information of the downlink service flow is corresponding, so that the processor 1302 allocates a transmission time for the downlink service flow in each scheduling period according to the information of the downlink service flow, and sends the downlink service flow to the user equipment that determines to download the downlink service flow.

The processor 1302 is configured to determine, according to the parameter information, whether the spare time of the current channel satisfies the admission control request.

Specifically, the processor 1302 determines, according to the parameter information described above (mainly according to the maximum delay requirement, the transmission rate, and the maximum length of the MAC layer data unit in the parameter information, etc.), the time and scheduling period of occupying the channel when transmitting the first service flow. . The time of the channel occupied when the first service flow is transmitted is compared with the current free time of the channel, and a comparison result is obtained. According to the comparison result, it is determined whether the current spare time of the AP channel satisfies the admission control request.

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, the processor 1302 releases the channel time occupied by the current service flow according to the first priority level, so as to satisfy the admission control request. The demand, wherein the current service flow corresponds to a lower priority than the first priority.

It should be noted that the current service flow is a service flow that currently occupies a channel time in the AP, and the priority level corresponding to the service flow may be regarded as a priority level of the scheduling rule established by the processor 1302 according to the service flow, and the scheduling rule is used. The priority level has been stored in the AP.

Optionally, after establishing the scheduling rule, the processor 1302 is further configured to: update the free time of the channel.

The processor 1302 can process other admission control requests according to the free time of the channel, thereby improving work efficiency.

It should be noted that the spare time of the update channel mentioned here means that the processor 1302 updates the channel after establishing the scheduling rule and has allocated the channel time required for transmitting the first service flow. The current free time.

It should be noted that, when the admission control request is an uplink admission control request, the receiver 1301 is further configured to receive the indication information sent by the AC.

At this time, the device may further include a transmitter 1303, and the transmitter 1303 is configured to send the uplink classification information to the wireless station STA according to the indication information.

Specifically, the transmitter 1303 sends a CF_POLL frame to the STA at the scheduling start time of the uplink service flow, and carries the classification information of the uplink service flow in the CF_POLL frame, so that the STA can determine the corresponding channel time transmission according to the classification information. The uplink service flow, and according to the indication of the CF_POLL frame, sends the uplink service flow at a specified time.

The access point provided by the embodiment 14 of the present invention receives, by the receiver, a resource request message sent by the AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, and the processor is configured according to The parameter information in the admission control request determines that the current idle time of the channel satisfies the admission control request, and establishes a scheduling rule to perform scheduling transmission on the service flow corresponding to the admission control request; if the current channel time is insufficient, the processor may further The service quality of the high-priority service flow is ensured by releasing the channel time occupied by the current low-priority service flow, thereby preventing the WLAN network resource from being abused by unauthorized users or services.

Figure 14 is a schematic structural diagram of an access controller according to Embodiment 15 of the present invention. As shown in Figure 14, the access controller includes: a processor 1401, a transmitter 1402;

The processor 1401 is configured to determine to send a resource request message to the access point AP according to the user subscription information and/or the service authorization rule.

Specifically, the processor 1401 determines, according to the user subscription information and/or the service authorization rule, whether to provide the service quality guarantee for the first service flow corresponding to the admission control request, because only the subscription user or the specific service flow can obtain the service quality. Therefore, the processor 1401 needs to determine whether the service flow corresponding to the admission control request meets the user subscription information and/or the service authorization rule, that is, whether the service quality guarantee needs to be provided, and when it is determined that the service quality guarantee is provided, the transmitter is notified. 1402 direction The AP sends a resource request message; otherwise, the sender 1402 does not send a resource request message, where the resource request message includes an admission control request and a first priority level corresponding to the first service flow, where the admission control request is Contains parameter information.

It should be noted that the first priority level obtained by the foregoing is the first comprehensive priority, which is obtained after the processor 1401 determines to provide the QOS security for the first service flow according to the user subscription information and/or the service authorization rule. The process of generating the first comprehensive priority is as follows:

The processor 1401 may determine a priority relationship corresponding to different service flows according to the service authorization rule. According to the user subscription information, the priority relationship corresponding to the subscription user may be determined.

When there is only a service authorization rule, the processor 1401 may use the priority level corresponding to the first service flow as the first comprehensive priority according to the service authorization rule.

Alternatively, when there is only user subscription information, the processor 1401 may use the user's subscription information as the first comprehensive priority according to the user subscription information;

When the user subscription information and the service authorization rule exist simultaneously, the processor 1401 combines the priority level corresponding to the service authorization rule and the priority level corresponding to the user subscription information to obtain the first comprehensive priority.

It should be understood that the access controller may further include a receiver 1403 for receiving the first request message, where the admission control request is actually carried in the first request message received by the receiver 1403, that is, the receiver 1403 receives The first request message sent by the AP or the first request message sent by the network side device, where the request message carries an admission control request.

Therefore, if the receiver 1403 receives the first request message sent by the AP, the processor 1401 is further configured to generate a forwarding principle for configuring the AP. When the request message received by the AP is a specific message, the AP needs to directly report it to the AC for processing according to the forwarding principle configured by the processor 1401. For example, the first request message in this embodiment, the AP receives the request message. When it is reported directly to the AC, other non-specific messages are handled by the AP itself.

In addition, if the receiver 1403 receives the first request message sent by the network side device, and the admission control request carried by the first request message is an uplink admission control request, the transmitter 1402 is further configured to send an indication to the AP. The information indicating the information is used by the AP to send the uplink classification information to the wireless station STA.

It should be understood that at the same time, there can only be one case for the source of the request message received by the receiver 1401. It is generally not possible for both to occur at the same time, so subsequent execution actions based on the source of the received message are also alternative and correspond one-to-one with the source of the received message.

A schematic structural diagram of an access controller according to Embodiment 15 of the present invention, the processor is used according to The subscriber subscription information and/or the service authorization rule determine to provide the service quality guarantee, and use the sender to send a resource request message to the AP, where the resource request message includes an admission control request and a first priority level corresponding to the first service flow, Therefore, the AP can determine that the current idle time of the channel satisfies the admission control request according to the parameter information in the admission control request, and establish a scheduling rule corresponding to the first service flow, thereby preventing the WLAN network resource from being abused by the unauthorized user or service. .

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A network admission control method, characterized in that the method comprises:

When the access controller AC determines to accept the admission control request according to the user subscription information and/or the service authorization rule, the scheduling rule corresponding to the first service flow is established, where the first service flow is corresponding to the admission control request. Business flow

And sending the scheduling rule to the access point AP, so that the AP schedules the first service flow according to the scheduling rule.
The method according to claim 1, wherein the determining to accept the admission control request according to the user subscription information and/or the service authorization rule comprises:

Determining a time when the channel is occupied when the first service flow is transmitted, when determining that the service quality guarantee is provided according to the user subscription information and/or the service authorization rule;

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, to obtain a comparison result;

Based on the comparison result, it is determined to accept the admission control request.
The method according to claim 2, wherein the determining to accept the admission control request according to the comparison result comprises:

The admission control request is accepted when the comparison result is that the time when the first traffic flow is occupied by the channel is less than or equal to the current spare time of the channel.
The method according to claim 2, wherein the determining to accept the admission control request according to the comparison result comprises:

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, determining that the second service flow exists, and the second priority level corresponding to the second service flow is lower than the second priority The first priority level corresponding to the first service flow, the first indication information is sent to the AP, where the first indication information is used to indicate that the AP releases the time occupied by the second service flow;

After receiving the acknowledgement information sent by the AP that has released the time occupied by the second service flow, the admission control request is accepted.
The method according to claim 3 or 4, wherein the method further comprises: updating a free time of the channel after establishing a scheduling rule corresponding to the first service flow.
The method according to any one of claims 1 to 4, wherein the admission control request is sent by the AP or sent by a network side device.
The method according to claim 6, wherein when the admission control request is sent by the network side device, and the admission control request is an uplink admission control request, the method further includes: The AP sends second indication information, where the second indication information is used by the AP to send uplink classification information to the wireless station STA.
A network admission control method, characterized in that the method comprises:

The access point AP receives the resource request message sent by the access controller AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request is Include parameter information, where the first service flow is a service flow corresponding to the admission control request;

Determining, according to the parameter information, whether a current spare time of the channel satisfies the admission control request;

Establishing a scheduling rule corresponding to the first service flow when determining that a current spare time of the channel satisfies the admission request;

When it is determined that the current idle time of the channel does not satisfy the admission control request, release, according to the first priority level, a time for transmitting a current service flow occupying channel, so as to satisfy the admission control request, where The current service flow corresponds to a lower priority than the first priority.
The method according to claim 8, wherein the determining, according to the parameter information, whether the current spare time of the channel satisfies the admission control request comprises:

Determining, according to the parameter information, a time when the channel is occupied when the first service flow is transmitted;

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, to obtain a comparison result;

Determining, according to the comparison result, whether the current spare time of the channel satisfies the admission control Request.
The method according to claim 9, wherein the determining, according to the comparison result, whether the current spare time of the channel satisfies the admission control request comprises:

Determining that the current spare time of the channel satisfies the admission control request, when the comparison result is that the time when the first service flow occupied channel is less than or equal to the current idle time of the channel;

When the comparison result is that the time occupied by the first service flow is greater than the current spare time of the channel, it is determined that the current spare time of the channel does not satisfy the admission control request.
The method according to any one of claims 8 to 10, wherein the resource request message further includes: a lowest physical layer rate when the first service flow is transmitted.
The method according to any one of claims 8 to 10, wherein the method further comprises: updating a free time of the channel after establishing a scheduling rule corresponding to the first service flow.
The method according to any one of claims 8 to 10, wherein the method further comprises: receiving the indication information sent by the AC when the admission control request is an uplink admission control request;

And transmitting uplink classification information to the wireless station STA according to the indication information.
A network admission control method, characterized in that the method comprises:

The access controller AC determines to send a resource request message to the access point AP according to the user subscription information and/or the service authorization rule, where the resource request message includes an admission control request and a first corresponding to the first service flow. a priority level, the admission control request includes parameter information, so that the AP determines, according to the parameter information, whether a current spare time of the channel satisfies the admission control request, and establishes a scheduling corresponding to the first service flow. The rule that the first service flow is a service flow corresponding to the admission control request.
The method according to claim 14, wherein said user subscription information is And/or the service authorization rule determines that sending the resource request message to the access point AP includes: sending the resource request message to the AP when determining that the service quality guarantee is provided according to the user subscription information and/or the service authorization rule .
The method according to claim 14 or 15, wherein the resource request message further comprises: a lowest physical layer rate when the first service flow is transmitted.
The method according to claim 14, wherein the admission control request is sent by the AP or sent by a network side device.
The method according to claim 17, wherein when the admission control request is sent by the network side device, and the admission control request is an uplink admission control request, the method further includes: The AP sends indication information, where the indication information is used by the AP to send uplink classification information to the wireless station STA.
An access controller, characterized in that the access controller comprises: a processor and a transmitter;

The processor is configured to: when the admission control request is determined according to the user subscription information and/or the service authorization rule, establish a scheduling rule corresponding to the first service flow, where the first service flow is the admission control Request the corresponding business flow;

The transmitter is configured to send the scheduling rule established by the processor to the access point AP, so that the AP schedules the first service flow according to the scheduling rule.
The access controller according to claim 19, wherein the processor is specifically configured to:

Determining a time when the channel is occupied when the first service flow is transmitted, when determining that the service quality guarantee is provided according to the user subscription information and/or the service authorization rule;

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, to obtain a comparison result;

Based on the comparison result, it is determined to accept the admission control request.
The access controller according to claim 20, wherein the processor determines to accept the admission control request according to the comparison result, including:

The admission control request is accepted when the comparison result is that the time when the first traffic flow is occupied by the channel is less than or equal to the current spare time of the channel.
The access controller according to claim 20, wherein the processor determines to accept the admission control request according to the comparison result, including:

When the comparison result is that the time when the first service flow occupies the channel is greater than the current vacant time of the channel, determining that the second service flow exists, and the second priority level corresponding to the second service flow is lower than the second priority The first priority level corresponding to the first service flow, the first indication information is sent to the AP, where the first indication information is used to indicate that the AP releases the time occupied by the second service flow;

After receiving the acknowledgement information sent by the AP that has released the time occupied by the second service flow, the admission control request is accepted.
The access controller according to claim 21 or 22, wherein the processor is further configured to: after establishing a scheduling rule corresponding to the first service flow, update a spare time of the channel.
The access controller according to any one of claims 19 to 22, wherein the admission control request is sent by the AP or a network side device.
The access controller according to claim 24, wherein when the admission control request is sent by the network side device, and the admission control request is an uplink admission control request, the transmitter The method is further configured to: send the second indication information to the AP, where the second indication information is used by the AP to send the uplink classification information to the wireless station STA.
An access point, where the access point includes: a receiver, a processor;

The receiver is configured to receive a resource request message sent by the access controller AC, where the resource request message includes an admission control request, and a first priority level corresponding to the first service flow, where the admission control request is Include parameter information, the first service flow is related to the admission control request Business flow

The processor is configured to determine, according to the parameter information, whether a current spare time of the channel satisfies the admission control request;

Establishing a scheduling rule corresponding to the first service flow when determining that a current spare time of the channel satisfies the admission request;

When it is determined that the current idle time of the channel does not satisfy the admission control request, release, according to the first priority level, a time for transmitting a current service flow occupying channel, so as to satisfy the admission control request, where The current service flow corresponds to a lower priority than the first priority.
The access point according to claim 26, wherein the processor is specifically configured to:

Determining, according to the parameter information, a time when the channel is occupied when the first service flow is transmitted;

Comparing the time occupied by the channel when transmitting the first service flow with the current spare time of the channel, to obtain a comparison result;

And determining, according to the comparison result, whether the current spare time of the channel satisfies the admission control request.
The access point according to claim 27, wherein the processor determines, according to the comparison result, whether the current spare time of the channel satisfies the admission control request, including:

Determining that the current spare time of the channel satisfies the admission control request, when the comparison result is that the time when the first service flow occupied channel is less than or equal to the current idle time of the channel;

When the comparison result is that the time occupied by the first service flow is greater than the current spare time of the channel, it is determined that the current spare time of the channel does not satisfy the admission control request.
The access point according to any one of claims 26-28, wherein the resource request message further includes: a lowest physical layer rate when the first service flow is transmitted.
The access point according to any one of claims 26-28, wherein the processor is further configured to: after establishing a scheduling rule corresponding to the first service flow, update a spare time of the channel.
The access point of any of claims 26-28, wherein said access point further comprises a transmitter, when the admission control request is an uplink admission control request, the receiver receives the indication information sent by the AC;

The transmitter is configured to send uplink classification information to the wireless station STA according to the indication information.
An access controller, characterized in that the access controller comprises: a processor and a transmitter;

The processor is configured to: send a resource request message to the access point AP according to the user subscription information and/or the service authorization rule, where the resource request message includes an admission control request, and a first corresponding to the first service flow a priority level, the admission control request includes parameter information, so that the AP determines, according to the parameter information, whether a current idle time of the channel satisfies the admission control request, and establishes a correspondence with the first service flow. a scheduling rule, where the first service flow is a service flow corresponding to the admission control request;

The transmitter is configured to send a resource request message to the AP.
The access controller according to claim 32, wherein the processor is specifically configured to: when determining to provide quality of service guarantee according to the user subscription information and/or the service authorization rule, to the AP Sending the resource request message.
The access controller according to claim 32 or 33, wherein the resource request message further comprises: a lowest physical layer rate when the first service flow is transmitted.
The access controller according to claim 32, wherein the admission control request is sent by the AP or sent by a network side device.
The access controller according to claim 35, wherein when the admission control request is sent by the network side device, and the admission control request is an uplink admission control request, the transmitter The method is further configured to: send the indication information to the AP, where the indication information is used by the AP to send the uplink classification information to the wireless station STA.