WO2016201624A1 - Procédé d'établissement d'un accusé de réception de bloc de données de wlan, contrôleur d'accès (ac) et point d'accès (ap) - Google Patents

Procédé d'établissement d'un accusé de réception de bloc de données de wlan, contrôleur d'accès (ac) et point d'accès (ap) Download PDF

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Publication number
WO2016201624A1
WO2016201624A1 PCT/CN2015/081581 CN2015081581W WO2016201624A1 WO 2016201624 A1 WO2016201624 A1 WO 2016201624A1 CN 2015081581 W CN2015081581 W CN 2015081581W WO 2016201624 A1 WO2016201624 A1 WO 2016201624A1
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WO
WIPO (PCT)
Prior art keywords
block
response
data stream
block response
sta
Prior art date
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PCT/CN2015/081581
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English (en)
Chinese (zh)
Inventor
李岩
乔晓强
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/081581 priority Critical patent/WO2016201624A1/fr
Priority to CN201580059344.2A priority patent/CN107113783B/zh
Publication of WO2016201624A1 publication Critical patent/WO2016201624A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for establishing a WLAN block response, an AC, and an AP.
  • WLAN networks have been more and more widely used.
  • STA station, abbreviation: STA
  • AP Access Point
  • the original 802.11 protocol gives a frame and a confirmation.
  • the normal transmission mode requires that each time a data frame is received, the ACK frame must be immediately acknowledged.
  • the Block Acknowledge (BA) technique in the 802.11n protocol gives a way to continuously transmit multiple frames and then acknowledge multiple frames at a time.
  • BA Block Acknowledge
  • the process of establishing a block response between the STA and the AP in the 802.11n standard protocol is negotiated between the STA and the AP.
  • it is not only responsible for forwarding data between the AP and the gateway, but also for controlling the transaction of the plane, resulting in an increase in the management and configuration costs of the AP, which may result in the deployment and evolution cost of the subsequent WLAN system.
  • the embodiment of the present invention provides a method for establishing a WLAN block response, an AC, and an AP, which are used to decouple the control plane and the forwarding plane of the AP during the WLAN block response setup process, thereby reducing AP management and configuration costs, and subsequent Deployment and evolution costs of WLAN systems.
  • the present invention provides a method for establishing a WLAN block response of a wireless local area network, the method comprising:
  • the access controller AC After the station STA determines that the access point AP establishes a block response for the uplink data stream and sends a block acknowledgement setup request message to the AP, the access controller AC receives the block acknowledgement setup request message sent by the AP, a block acknowledgement setup request message is used to request the AP and the STA Establishing a block response for the upstream data stream;
  • the AC determines to allow the AP and the STA to establish a block response for the uplink data stream
  • the AC sends a block acknowledgement response message to the AP, where the block acknowledgement response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the block response setup request message carries a service identifier TID of the uplink data stream
  • Determining, by the AC, that the AP and the STA establish a block response for the uplink data stream includes:
  • the AC determines, according to the preset rule and the service type, that the uplink data flow needs to establish a block response, where the preset rule includes service type information that needs to establish a block response.
  • the AC determining to allow the AP and the STA to establish a block response for the uplink data stream includes:
  • the AC acquires a priority of the uplink data stream
  • the AC determines that the current resource status of the AP does not satisfy the resource required for establishing a block response for the uplink data stream, and the first uplink data stream exists, the AC determines to allow the AP and the STA to be The upstream data stream establishes a block response;
  • the first uplink data stream has a lower priority than the uplink data stream, and the AP has established an uplink data stream for which the block responds.
  • the priority of the uplink data stream includes:
  • the method further includes include:
  • the AC sends a block response receiving rule to the AP, where the block response receiving rule is used to instruct the AP to allocate resources required for establishing a block response for the uplink data stream.
  • the AC sends a block response setup response to the AP After the message, the method further includes:
  • the AC After the uplink data stream is transmitted, the AC receives a block acknowledgement deletion request message sent by the AP;
  • the AC sends a Block Reply Delete Indication message to the AP, where the Block Reply Delete Indication message is used to instruct the AP to release resources required for establishing a block response allocated for the uplink data stream.
  • the AC sends a block response setup response to the AP After the message, the method further includes:
  • the AC sends a Block Reply Delete Indication message to the AP, where the Block Reply Delete Indication message is used to instruct the AP to release resources required for establishing a block response allocated for the uplink data stream.
  • the access controller AC receives the AP Before the sending of the block response setup request message, the method further includes:
  • the AC sends a forwarding rule to the AP, where the forwarding rule is used to instruct the AP to send the block response setup request message to the AC.
  • the present invention provides a method for establishing a wireless local area network WLAN block response, the method comprising:
  • the station STA After the station STA determines to establish a block response with the access point AP upstream data stream and sends a block acknowledgement setup request message to the AP, the AP sends the block acknowledgement setup request message to the access controller AC, the block The response setup request message is used to request the AP and the STA to be on The row data stream establishes a block response;
  • the AP receives the block response setup response message sent by the AC, and the block response setup response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the method further includes:
  • the AP allocates, according to the block response receiving rule, a resource required to establish a block response for the uplink data stream.
  • the method further includes:
  • the AP After the uplink data stream is transmitted, the AP sends the block acknowledgement deletion request message to the AC;
  • the AP releases, according to the block acknowledgement deletion indication message, a resource required to establish a block response allocated for the uplink data stream.
  • the method further includes:
  • the AP After the preset period of time, the AP sends a timing notification message to the AC, where the timing notification message indicates that the time of the block response established by the AP and the STA expires;
  • the block response deletion indication message as the uplink data stream The allocated resources needed to establish a block response.
  • the AP sends the block to the access controller AC
  • the response setup request message includes:
  • the AP sends the block acknowledgement setup request message to the AC according to a forwarding rule, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the present invention provides a method for establishing a WLAN block response of a wireless local area network, the method comprising:
  • the access controller AC After the access controller AC learns the downlink data flow, the AC determines whether the access point AP and the station STA can establish a block response for the downlink data flow, where the downlink data flow is sent to the STA through the AP. Data flow
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA;
  • the AC receives a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data stream.
  • the determining, by the AC, whether the access point AP and the station STA can establish a block response for the downlink data stream includes:
  • the AC determines, according to the preset rule and the service type, whether the downlink data flow needs to establish a block response, where the preset rule includes service type information of a data flow that requires a block response.
  • the determining, by the AC, whether the access point AP and the station STA can establish a block response for the downlink data flow includes:
  • the AC acquires a priority of the downlink data stream
  • the AC determines that the current resource status of the AP does not satisfy the resource required for establishing a block response for the downlink data flow, and the first downlink data flow exists, the AC determines that the AP and the STA are The upstream data stream establishes a block response;
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the priority of the downlink data stream includes: a user priority of the STA, or the downlink data stream Service priority, or a comprehensive priority obtained according to the user priority of the STA and the service priority of the downlink data stream.
  • the method in combination with the third aspect or the first possible implementation manner to the third possible implementation manner of the third aspect, after the AP establishes a block response with the STA, the method also includes:
  • the AC sends a block response transmission rule to the AP, where the block response transmission rule indicates a resource required by the AP to establish a block response for the downlink data flow.
  • the method in combination with the third aspect or the first possible implementation manner to the fourth possible implementation manner of the third aspect, after the AP establishes a block response with the STA, the method also includes:
  • the AC After the downlink data stream is transmitted, the AC sends a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release a setup block response that is allocated for the downlink data stream. Resources needed.
  • the method in combination with the third aspect or the first possible implementation manner to the fourth possible implementation manner of the third aspect, after the AP establishes a block response with the STA, the method also includes:
  • the AC sends a Block Reply Delete Indication message to the AP, where the Block Reply Delete Indication message is used to instruct the AP to release resources required for establishing a block response allocated for the downlink data stream.
  • the present invention provides a method for establishing a WLAN block response of a wireless local area network, the method comprising:
  • the access point AP receives a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow;
  • the AP receives a block response setup response message sent by the STA, where the block response setup response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data stream.
  • the AP sends the block acknowledgement setup response message to the AC.
  • the method further includes:
  • the AP receives a block response receiving rule sent by the AC, and the block response receiving rule indicates a resource required by the AP to establish a block response for the downlink data stream.
  • the present invention provides an access controller, where the access controller includes a processor, a receiver, and a transmitter;
  • the receiver is configured to: after the station STA determines to establish a block response with the access point AP for the uplink data stream, and send a block acknowledgement setup request message to the AP, receive the block acknowledgement setup request message sent by the AP, The block response setup request message is used to request the AP and the STA to establish a block response for the uplink data stream;
  • the processor is configured to determine that the AP and the STA are allowed to establish a block response for the uplink data stream;
  • the transmitter is configured to send a block response setup response message to the AP, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the block response setup request message carries a service identifier TID of the uplink data stream
  • the processor is specifically configured to acquire, according to a TID of the uplink data stream, a service type of the uplink data stream;
  • the preset rule includes service type information that needs to establish a block response.
  • the processor is specifically configured to obtain a priority of the uplink data stream
  • a block response is established for the uplink data stream. Determining, by the required resources, that the first uplink data stream exists, determining that the AP and the STA are allowed to establish a block response for the uplink data stream;
  • the first uplink data stream has a lower priority than the uplink data stream, and the AP has established an uplink data stream for which the block responds.
  • the priority of the uplink data stream includes:
  • the transmitter is further configured to send to the AP
  • the block acknowledgment receiving rule is used to indicate that the AP allocates resources required for establishing a block acknowledgment for the uplink data stream.
  • the receiver is further configured to use the uplink data After the streaming is completed, receiving a block response deletion request message sent by the AP;
  • the transmitter is further configured to send a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the receiver is further configured to receive the AP sending a timing notification message indicating that the time of the block response established by the AP and the STA is timed out;
  • the transmitter is further configured to send a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the transmitter is further configured to: Sending a forwarding rule, the forwarding rule is used to instruct the AP to use the block An answer setup request message is sent to the AC.
  • the present invention provides an access point, where the access point includes a receiver and a transmitter;
  • the transmitter is configured to send the block acknowledgement setup request message to the access controller AC after the station STA determines to establish a block response with the access point AP uplink data flow and sends a block acknowledgement setup request message to the AP
  • the block response setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the receiver is configured to receive a block acknowledgement response message sent by the AC, where the block acknowledgement response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the access point further includes: a processor
  • the receiver is further configured to receive a block response receiving rule sent by the AC, where the block response receiving rule is used to instruct the AP to allocate a resource required for establishing a block response for the uplink data stream;
  • the processor is configured to allocate, according to the block acknowledgement receiving rule, a resource required to establish a block response for the uplink data stream.
  • the transmitter is further configured to: after the uplink data stream is transmitted, to the The AC sends a block acknowledgement delete request message;
  • the receiver is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream;
  • the processor is configured to release, according to the block acknowledgement deletion indication message, a resource required to establish a block response allocated for the uplink data stream.
  • the transmitter is further configured to send a timing to the AC after a preset time period a notification message, the timing notification message indicating that the time of the block response established by the AP and the STA is timed out;
  • the receiver is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream;
  • the processor is configured to release, according to the block acknowledgement deletion indication message, a resource required to establish a block response allocated for the uplink data stream.
  • the transmitter is further configured to use the forwarding rule according to the forwarding rule
  • the AC sends the block acknowledgement setup request message, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the present invention provides an access controller, where the access controller includes a processor, a receiver, and a transmitter;
  • the processor is configured to determine, after the access controller AC learns the downlink data flow, whether the access point AP and the station STA can establish a block response for the downlink data flow, where the downlink data flow is sent by using the AP a data stream to the STA;
  • the transmitter is configured to send a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message instructs the AP to establish a block response with the STA;
  • the receiver is configured to receive a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA allows a block response to be established with the AP for the downlink data flow.
  • the processor is specifically configured to acquire a service type of the downlink data stream
  • the preset rule includes service type information of a data flow that requires a block response.
  • the processor is specifically configured to acquire a priority of the downlink data stream
  • the first downlink data stream has a lower priority than the downlink data stream. And the downlink data stream for which the AP has established a block response.
  • the priority of the downlink data stream includes: a user priority of the STA, or the downlink data stream Service priority, or a comprehensive priority obtained according to the user priority of the STA and the service priority of the downlink data stream.
  • the transmitter is further configured to send to the AP The block acknowledgment transmission rule, the block acknowledgment transmission rule indicating a resource required by the AP to establish a block acknowledgment for the downlink data stream.
  • the transmitter is further configured to use the downlink data After the stream transmission is completed, a block acknowledgement deletion indication message is sent to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release resources required for establishing a block response allocated for the downlink data stream.
  • the receiver is further configured to receive the STA sending Block response timing notification message, the block response timing notification message indicating that the time of the block response established by the AP and the STA is timed out;
  • the transmitter is further configured to send a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the downlink data stream.
  • the present invention provides an access point, where the access point includes a receiver and a transmitter;
  • the receiver is configured to receive a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow;
  • the transmitter is configured to send a block acknowledgement setup request message to the STA;
  • the receiver is further configured to receive a block response setup response message sent by the STA, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to be the next
  • the row data stream establishes a block response
  • the transmitter is further configured to send the block acknowledgement setup response message to the AC.
  • the receiver is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule indicates that the AP is the The resources required to establish a block response for the downlink data flow allocation.
  • the present invention provides an access controller AC, where the AC includes: a receiving unit, a determining unit, and a sending unit;
  • the receiving unit is configured to receive the block acknowledgement setup request message sent by the AP, where the block acknowledgement setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the determining unit is configured to determine that the AP and the STA are allowed to establish a block response for the uplink data stream;
  • the sending unit is configured to send a block response setup response message to the AP, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the block response setup request message carries a service identifier TID of the uplink data stream, and the determining unit is specifically configured to use, according to the uplink
  • the TID of the data stream acquires the service type of the uplink data stream;
  • the preset rule includes service type information that needs to establish a block response.
  • the determining unit is specifically configured to acquire a priority of the uplink data stream
  • the first uplink data stream has a lower priority than the uplink data stream, and the AP has established an uplink data stream for which the block responds.
  • the priority of the uplink data stream includes:
  • the sending unit is further configured to send to the AP
  • the block acknowledgment receiving rule is used to indicate that the AP allocates resources required for establishing a block acknowledgment for the uplink data stream.
  • the receiving unit is further configured to use the uplink data After the streaming is completed, receiving a block response deletion request message sent by the AP;
  • the sending unit is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the receiving unit is further configured to receive the AP sending a timing notification message indicating that the time of the block response established by the AP and the STA is timed out;
  • the sending unit is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the sending unit is further configured to send to the AP And a forwarding rule, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the present invention provides an access point AP, where the AC includes: a sending unit and a receiving unit;
  • the sending unit is configured to send the block acknowledgement setup request message to the access controller AC, where the block acknowledgement setup request message is used to request the AP and the STA to establish an uplink data flow.
  • the receiving unit is configured to receive the block response setup response message sent by the AC, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the AC further includes: a resource management unit.
  • the receiving unit is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule is used to instruct the AP to allocate a resource required for establishing a block response to the uplink data stream;
  • the resource management unit is configured to allocate, according to the block response receiving rule, a resource required for establishing a block response for the uplink data stream.
  • the sending unit is further configured to: after the uplink data stream is transmitted, to the The AC sends a block acknowledgement delete request message;
  • the receiving unit is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream;
  • the resource management unit is further configured to release, according to the block acknowledgement deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • the sending unit is further configured to send a timing to the AC after a preset time period a notification message, the timing notification message indicating that the time of the block response established by the AP and the STA is timed out;
  • the receiving unit is further configured to receive the block response deletion indication message sent by the AC, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the sending unit is specifically configured to use the forwarding rule according to the forwarding rule
  • the AC sends the block acknowledgement setup request message, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • an embodiment of the present invention provides an access controller AC, where the AC includes: a determining unit, a sending unit, and a receiving unit;
  • the determining unit is configured to determine, after the access controller AC learns the downlink data flow, whether the access point AP and the station STA can establish a block response for the downlink data flow, where the downlink data flow is sent by the AP a data stream to the STA;
  • the sending unit is configured to send a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA;
  • the receiving unit is configured to receive a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA allows a block response to be established with the AP for the downlink data stream.
  • the determining unit is specifically configured to acquire a service type of the downlink data stream
  • the preset rule includes service type information of a data flow that requires a block response.
  • the determining unit is specifically configured to acquire a priority of the downlink data stream
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the priority of the downlink data stream includes: a user priority of the STA, or the downlink data The service priority of the flow, or the comprehensive priority obtained according to the user priority of the STA and the service priority of the downlink data flow.
  • the sending unit is further used for The AP sends a block response transmission rule, and the block response transmission rule indication The AP allocates resources required for establishing a block response to the downlink data stream.
  • the sending unit is further used in After the downlink data stream is transmitted, the block response deletion indication message is sent to the AP, and the block response deletion indication message is used to instruct the AP to release resources required for establishing a block response allocated for the downlink data stream.
  • the receiving unit is further configured to Receiving, by the AC, a block response timing notification message sent by the STA, where the block response timing notification message indicates that a time of a block response established by the AP and the STA is timed out;
  • the sending unit is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the downlink data stream.
  • an embodiment of the present invention provides an access point AP, where the AP includes: a receiving unit, and a sending unit.
  • the receiving receipt is configured to receive a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow;
  • a sending unit configured to send a block acknowledgement setup request message to the STA
  • the receiving unit is configured to receive a block response setup response message sent by the STA, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow;
  • a sending unit configured to send the block acknowledgement setup response message to the AC.
  • the receiving unit is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule indicates that the AP is The downlink data stream is allocated to establish a resource required for the block to respond.
  • the method for establishing a WLAN block response, the AC, and the AP are provided.
  • the AP After receiving the block acknowledgement setup request message sent by the STA, the AP forwards the block acknowledgement setup request message to the AC, and the AC determines whether to determine whether the STA is associated with the STA. Building blocks for the data stream In response, the AP is no longer responsible for controlling the transaction of the plane, decoupling the control plane and the forwarding plane, thereby reducing the management and configuration costs of the AP, and the deployment and evolution costs of the subsequent WLAN system.
  • FIG. 1 is a schematic diagram of a flow of uplink data stream transmission by a STA and an AP based on a block response mechanism in the prior art
  • FIG. 2 is a schematic structural diagram of a centralized control type WLAN network
  • FIG. 3 is a schematic flowchart 1 of a method for establishing a WLAN block response performed by an AC according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart 2 of a method for establishing a WLAN block response performed by an AC according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart 3 of a method for establishing a WLAN block response performed by an AC according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart 1 of a method for canceling a WLAN block response performed by an AC according to an embodiment of the present invention
  • FIG. 7 is a second schematic flowchart of a method for canceling a WLAN block response performed by an AC according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart 1 of a method for establishing a WLAN block response performed by an AP according to an embodiment of the present disclosure
  • FIG. 9 is a schematic flowchart 1 of a method for canceling a WLAN block response performed by an AP according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart 2 of a method for canceling a WLAN block response performed by an AP according to an embodiment of the present invention
  • FIG. 11 is a schematic diagram 1 of a method for establishing a WLAN block response according to an embodiment of the present invention.
  • FIG. 12 is a first schematic flowchart of a method for establishing another WLAN block response performed by an AC according to an embodiment of the present disclosure
  • FIG. 13 is a second schematic flowchart of a method for establishing another WLAN block response performed by an AC according to an embodiment of the present disclosure
  • FIG. 14 is a schematic flowchart 3 of a method for establishing another WLAN block response performed by an AC according to an embodiment of the present disclosure
  • 15 is a schematic flowchart 1 of another method for WLAN block response revocation performed by an AC according to an embodiment of the present invention.
  • FIG. 16 is a second schematic flowchart of a method for WLAN block response revocation performed by an AC according to an embodiment of the present disclosure
  • FIG. 17 is a first schematic flowchart of a method for establishing another WLAN block response performed by an AP according to an embodiment of the present disclosure
  • FIG. 18 is a schematic diagram 2 of a method for establishing a WLAN block response according to an embodiment of the present invention.
  • FIG. 19 is a schematic structural diagram 1 of an AC according to an embodiment of the present invention.
  • FIG. 20 is a schematic structural diagram 1 of an AP according to an embodiment of the present invention.
  • FIG. 21 is a schematic structural diagram 2 of an AC according to an embodiment of the present invention.
  • FIG. 22 is a schematic structural diagram 2 of an AP according to an embodiment of the present invention.
  • FIG. 23 is a schematic structural diagram 3 of an AC according to an embodiment of the present invention.
  • FIG. 24 is a schematic structural diagram 3 of an AP according to an embodiment of the present invention.
  • FIG. 25 is a schematic structural diagram 4 of an AC according to an embodiment of the present invention.
  • FIG. 26 is a schematic structural diagram 4 of an AP according to an embodiment of the present invention.
  • this paper briefly describes the flow of uplink data stream transmission between the STA and the AP based on the block response mechanism as specified in the 802.11 standard protocol. As shown in Figure 1, the process includes:
  • the STA determines that the start block response mode transmits an uplink data flow, that is, sends a block response setup request ADDBA Request message to the AP to the AP.
  • the ADDBA Request message carries the service flow identification code (English: Traffic Identity, TID for short), the upstream data flow size, and the response policy, that is, the ADDBA Request message carries the parameter TID and the buffer (Buffer).
  • TID defines the identifier of the upstream data stream
  • Buffer is the size of the upstream data stream, that is, the size of the required buffer
  • the ACK Policy indicates the response mode, such as an immediate response or a delayed response.
  • the AP After receiving the ADDBA Request message, the AP determines whether to agree to adopt the block response mode according to the current resource status of the AP.
  • the AP If the current resource status of the AP satisfies the establishment of a block response with the STA for the uplink data stream, the AP agrees to adopt a block response mode. Otherwise, the AP does not agree.
  • the current resource status of the AP includes: at least one of an AP receiving buffer resource status and a scoreboard resource.
  • the current resource status of the AP may be the size of the receiving buffer currently occupied by the AP and the size of the scoreboard; or the current resource status of the AP may be the size of the receiving buffer of the AP and the size of the received receiving buffer, and The size of the AP's scoreboard and the size of the occupied scoreboard.
  • the AP may determine, according to the current resource status of the AP, whether the current resource status can buffer the uplink data stream and score the uplink data stream; if yes, the AP agrees to adopt a block response mode and is the uplink data stream.
  • the receive buffer is allocated, the scoreboard resource is set, and the corresponding block response setup response ADDBA Response is returned to the STA.
  • the foregoing AP when determining whether to agree to adopt the block response mode, the foregoing AP considers the current receiving buffer resource status and the scoreboard resource as only an exemplary description, and may also need to consider other resources required for establishing a block response. Not limited to this.
  • the present application is merely an exemplary description of how the AP determines whether to agree to the block response mode according to the current resource status of the AP, and details are not described herein.
  • the STA receives the ADDBA Response sent by the AP; if the AP agrees to the block response, please If so, the STA sends the corresponding data packet to the AP in sequence.
  • the AP receives the data packet sent by the STA, buffers the data packet to the allocated receiving buffer, and updates the corresponding scoreboard.
  • the STA After the STA sends multiple data packets in sequence (the maximum value is the receive buffer size), the STA sends a block acknowledgement request Block Ack Request message to the AP.
  • the AP After receiving the Block Ack Request message sent by the STA, the AP generates a block acknowledgement Block Ack message according to the received data message and the scoreboard condition, and sends the block Ack message to the STA.
  • the STA parses the received Block Ack message, obtains the missing data packet sequence number, and sends the corresponding data packet to the AP again.
  • the AP After confirming that all the data packets are received, the AP updates the buffer settings and the scoreboard, and forwards all the buffered data packets to the next node.
  • the 802.11 standard protocol stipulates that the block response mode between STA and AP for data stream transmission has the following problems:
  • the AP in addition to being responsible for the work of the data forwarding plane, the AP also needs to handle the transaction of the control plane, that is, the decision mechanism for implementing the block response, which causes the management and configuration cost of the AP, and may cause the deployment and evolution cost of the subsequent WLAN system.
  • the AP acts as the forwarding plane device and cannot know the information of the service layer and the user information of the STA.
  • the present application controls the control plane and the forwarding plane of the AP.
  • the network side is implemented by the Access Controller (AC) in the centralized control type WLAN network.
  • the negotiation mechanism between the AC and the STA is to agree to establish a block for the data flow between the STA and the AP. Answer.
  • the WLAN network system shown in FIG. 2 includes a STA, an AP, an AC, a gateway, a Deep Packet Inspection (DPI) device, and an application. Server (App Server).
  • DPI Deep Packet Inspection
  • App Server an application. Server
  • the STA is a wireless client
  • the wireless client may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (English: Radio Access Network, RAN for short), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and has
  • the computer of the mobile terminal for example, may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • personal communication service English: Personal Communication Service, PCS for short
  • cordless telephone
  • session initiation protocol English: Session Initiation Protocol, SIP
  • wireless local loop English: Wireless Local Loop, referred to as: WLL
  • PDA Personal Digital Assistant
  • the AP is responsible for encrypting, decrypting, and forwarding packets of the upstream and downstream data streams.
  • the AC is deployed in a centralized manner as a control plane device. It is mainly responsible for completing control functions, including: AP configuration and management, and completing user authentication, authorization, and other functions to maintain user subscription information.
  • the gateway implements the connection of the WLAN to an external network, such as the Internet.
  • DPI devices can exist independently or integrated in the gateway. By performing in-depth analysis on the contents of packet data packets, specific service types can be located to provide management policy support.
  • the service type information of the detected data flow may be provided to the AC through an interface with the AC.
  • the App Server provides a variety of application services to the STA, such as voice, online video, file download, and web browsing.
  • the App Server can provide an open interface to the AC to provide related service information, including the rate, to the AC. Delay requirement.
  • WLAN network system described in FIG. 2 above is only an exemplary centralized control type WLAN network, and the application is not limited thereto.
  • the negotiation between the AC and the STA is used to establish a block response for the data flow.
  • the present application can extend the interface between the AP and the AC, and the AP can negotiate with the AC and the STA.
  • a message between the STA and the AC such as a block acknowledgement setup request message ADD BA Request, is forwarded to the AC.
  • block response setup request message described in the following application may be an ADD BA Request (including TID, Buffer, ACK Policy) specified in the 802.11 series of standards, and the block response setup response message may be specified in the 802.11 series of standards.
  • ADD BA Response may be an ADD BA Response.
  • the form content of the block response setup request message and the response message may also change, if it can still be used in the WLAN block response establishment method provided by the present invention.
  • the specific form and content of the block response establishment request message and the response message are not specifically limited.
  • the current resource state of the AP includes at least one of a receiving buffer resource of the AP, a scoreboard resource, and a state of the timer resource.
  • the receiving buffer resource of the AP includes the current AP.
  • the remaining receive buffer size, the scoreboard resource includes the scoreboard size, and the timer resource includes a timer;
  • the current resource state of the AP includes: the status of the AP's sending buffer resource, the scoreboard resource, and the timer.
  • the sending buffer resource of the AP includes the current remaining sending buffer of the AP.
  • the area size, scoreboard resources include the scoreboard size, and the timer resources include timers.
  • the uplink data stream establishes resources required for the block response, including: receiving buffer resources, scoreboard resources, and timers;
  • the downlink data stream establishes resources required for the block response, including: a buffer resource, a scoreboard resource, and a timer.
  • the embodiment of the present invention provides a scenario in which the STA transmits the uplink data stream to the network side through the AP, and initiates a transmission mode in which the AP establishes a block response for the uplink data stream, based on the centralized control type WLAN network system shown in FIG. A method of WLAN block response establishment.
  • the method performed by the AC side includes:
  • the access controller AC receives the block acknowledgement setup request message sent by the AP.
  • the block acknowledgement setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the AC determines to allow the AP and the STA to establish a block response for the uplink data stream.
  • the AC sends a block response setup response message to the AP, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the embodiment decouples the forwarding plane and the control plane of the AP, and the decision of the network side block response mechanism is completed by the AC, and the AP is in the process of STA and AC negotiation.
  • the message between the STA and the AC is forwarded, that is, the block response setup request message sent by the STA is forwarded to the AC, and the block response response message sent by the AC is forwarded to the STA.
  • the AP acts only as a forwarding device during STA and AC negotiation. As an achievable manner, after receiving the block acknowledgement setup request sent by the STA, the AP sends the block acknowledgement setup request message to the AC according to the forwarding rule.
  • the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the forwarding rule is pre-configured by the AC.
  • the AP may also send the block acknowledgement setup request message to the AC according to the indication of the AC.
  • Specific methods include:
  • the access controller AC Before the access controller AC receives the block acknowledgement setup request message sent by the access point AP, the AC sends the forwarding rule to the AP.
  • the AP may generate a block response receiving rule by itself, and establish a block response for the uplink data stream according to the block response receiving rule.
  • the AC can also send a response receiving rule to the AP. Instructing the AP to establish a block response for the upstream data stream.
  • the method includes:
  • the method further includes:
  • the AC sends a block response receiving rule to the AP, where the block response receiving rule instructs the AP to allocate resources required for establishing a block response for the uplink data stream.
  • the block response receiving rule includes information such as a receiving buffer size, a scoreboard size, a timer, an ACK Policy, and a TID of the upstream data stream.
  • the timer is used to indicate duration information that the AP and the STA establish a block response for the uplink data stream.
  • the AC determines whether the AP and the STA are allowed to establish a block response for the uplink data flow, according to whether the current resource state of the AP is satisfied to be established for the uplink data flow.
  • the block responds with the required resources, and if satisfied, the AC determines to agree to the block response mode.
  • the AC determines whether to allow the AP to establish a block response with the STA, which may be based on the service type of the uplink data stream.
  • the method performed by the AC side includes:
  • the access controller AC receives a block acknowledgement setup request message sent by the access point AP, where the block acknowledgement setup request message is used to request the AP and the station STA to establish a block response for the uplink data stream.
  • the block response setup request message carries at least the TID of the uplink data stream.
  • the AC acquires a service type of the uplink data stream according to a TID of the uplink data stream.
  • the TID can be used to indicate the service type of the data stream.
  • the AC and the STA can pre-negotiate the TID values corresponding to different service types. For example, the TID value "00" is used to identify the service type 1, and the TID value "01" is used to identify the service type 2. Based on this, the AC can learn the service type of the uplink data stream according to the TID of the uplink data stream.
  • the service type may need to be combined with the transmission characteristics (English: Traffic Specification, short for: TSPEC), and the quality of service (Quality Of Service, QoS for short).
  • the type of service for the data stream may need to be combined with the transmission characteristics (English: Traffic Specification, short for: TSPEC), and the quality of service (Quality Of Service, QoS for short).
  • the type of service for the data stream may need to be combined with the transmission characteristics (English: Traffic Specification, short for: TSPEC), and the quality of service (Quality Of Service, QoS for short).
  • the AC determines, according to the preset rule and the service type, that the uplink data flow needs to establish a block response.
  • the preset rule includes service type information that needs to establish a block response.
  • the service types included in the preset rule are: service type information such as a file download service and a web browsing service.
  • the preset rule may be a service list that is allowed to be acknowledged by the uplink data flow, and is configured in the subscription information of the user.
  • the AC determines, according to the preset rule and the service type, whether the information of the service type is included in the preset rule, and if yes, the AC determines to allow the uplink data stream to establish a block response.
  • the AC determines that the upstream data stream does not need to establish a block response.
  • the AC directly sends a block response response message to the AP, where the block response response message indicates that the AP and the STA are not allowed to establish a block response for the uplink data stream.
  • the AC may further determine whether the current resource status of the AP satisfies the resource required for establishing a block response for the uplink data stream, if yes, The AC determines to allow the AP and the STA to establish a block response for the upstream data stream.
  • the AC sends a block acknowledgement response message to the AP, where the block acknowledgement response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream. If not, the AC determines that the AP and the STA are not allowed to establish a block response for the uplink data stream.
  • the AC sends a block acknowledgement response message to the AP, where the block acknowledgement response message is used to indicate that the AC does not allow the AP and the STA to establish a block response for the uplink data stream.
  • the AC determines whether the AP is allowed to establish a block response with the STA, When the current resource of the AP is insufficient, it can be based on the priority of the upstream data stream. Specifically, as shown in FIG. 5, the method performed by the AC side includes:
  • the access controller AC receives a block acknowledgement setup request message sent by the access point AP, where the block acknowledgement setup request message is used to request the AP and the station STA to establish a block response for the uplink data flow.
  • the AC acquires a priority of the uplink data stream.
  • the AC serves as the management and configuration device of the AP, and the user subscription information of the STA is saved, and the user subscription information includes the user priority of the STA.
  • the block response setup request message carries the identifier of the STA, and the AC acquires the user priority of the STA stored in the AC according to the identifier of the STA.
  • the AC obtains the service type of the uplink data stream according to the TID of the uplink data stream, and obtains the service priority of the uplink data stream according to the preset relationship list, where the preset relationship list includes Correspondence between business type and business priority.
  • the integrated priority is an value of the AC according to the user priority and the service priority of the uplink data stream, and the average value of the two is used as the value of the comprehensive priority, and may also be weighted and averaged. Setting a first weighting coefficient and a second weighting coefficient respectively for the user priority and the service priority, calculating a first product of the first weighting coefficient of the formula and the user priority, and a second product of the second weighting coefficient and the service priority, The average of the first product and the second product is taken as the value of the integrated priority.
  • other calculation methods may also be used, and the present application is not specifically limited herein.
  • the AC determines that the current resource status of the AP does not meet the resource required for establishing a block response for the uplink data flow, and the first uplink data stream exists, the AC determines to allow the AP and the STA. A block acknowledgment is established for the upstream data stream.
  • the first uplink data stream has a lower priority than the uplink data stream, and The uplink data stream for which the AP has established a block response.
  • the AC determines to allow the AP and the STA to establish a block response for the uplink data stream, if the AC determines that the current resource status of the AP meets the resources required to establish a block response for the uplink data stream.
  • the AC determines whether the current resource status of the AP does not meet the resources required for the block response to be established for the uplink data stream, the AC further determines whether the first uplink data stream exists, and if yes, the AC determines to allow the AP and the The STA establishes a block response for the upstream data stream.
  • the AC determines that the current resource status of the AP does not satisfy the resource required for the block response to be established for the uplink data stream, and the AC further determines that the first uplink data stream does not exist, in the scenario, the AC determines that the AC is not allowed.
  • the AP and the STA establish a block response for the uplink data stream.
  • the AC determines that the AP is allowed to establish a block response with the STA for the uplink data stream, the AC directly sends a block response response message to the AP, where the block response response message indicates that the AC allows the The AP and the STA establish a block response for the uplink data stream.
  • the block response receiving rule sent by the AC to the AP further includes: indicating that the AP releases the resource occupied by the first uplink data stream to establish a block response, so as to facilitate The AP can allocate corresponding resources to the STA.
  • the priority can be preferentially provided to the user with high priority, and the AC determines whether to allow The AP establishes a block response with the STA.
  • the AP may further consider the priority of the uplink data stream when the current resource of the AP is insufficient.
  • the method performed by the AC side includes:
  • the access controller AC receives the block response setup request message sent by the access point AP, and the block acknowledgement setup request message is used to request the AP and the station STA to establish a block response for the uplink data stream.
  • the block response setup request message carries at least the TID of the uplink data stream and the identifier of the STA.
  • the AC acquires the service type of the uplink data stream according to the TID of the uplink data stream.
  • the AC acquires a priority of the uplink data stream.
  • the AC determines, according to the preset rule and the service type, whether the uplink data flow needs to establish a block response.
  • the AC determines that the current resource status of the AP does not meet the resources required for establishing a block response for the uplink data stream, and the first uplink data stream exists, the AC determines to allow the AP and the The STA establishes a block response for the upstream data stream.
  • the AC determines, according to the preset rule and the service type, whether the information of the service type is included in the preset rule, and if yes, the AC determines that the uplink data stream needs to establish a block response. .
  • the AC determines that the upstream data stream does not need to establish a block response.
  • the AC directly sends a block response response message to the AP, where the block response response message indicates that the AC does not allow the AP and the STA to establish a block response for the uplink data stream.
  • the AC After determining that a block response needs to be established for the uplink data flow according to the service type, if the AC determines that the current resource status of the AP meets the resources required for establishing a block response for the uplink data flow, the AC determines that the AC allows the The AP and the STA establish a block response for the uplink data stream.
  • the AC determines whether there is a first uplink data stream, and if yes, the AC determines that the AC allows the The AP and the STA establish a block response for the uplink data stream.
  • the AC determines that the current resource status of the AP does not satisfy the resource required for the block response to be established for the uplink data stream, and the AC further determines that the first uplink data stream does not exist, in the scenario, the AC is further directly sent to the AP. And sending a block response response message, the block response response message indicating that the AC does not allow the AP and the STA to establish a block response for the uplink data stream.
  • the block response receiving rule sent by the AC to the AP further includes: indicating, by the AP, the resource occupied by the AP to establish a block response for the first uplink data stream, to use
  • the AP can allocate corresponding resources to the STA. It can be understood that, after the releasing the resource for the block response of the first uplink data stream, the current resource state of the AP satisfies the resources required for establishing the block response for the uplink data stream.
  • determining that the AC allows the AP and the STA to establish a block response for the uplink data stream sequentially determining Service type, the current resource status of the AP and the overall priority of the upstream data stream.
  • the judgment of the above three factors may be judged in no particular order, as long as the judgment result satisfies the following three conditions: 1.
  • the service type of the uplink data stream needs to establish a block response; 2.
  • the current resource status of the AP Not satisfying with the STA to establish a block response for the uplink data stream; 3.
  • Scenario 1 After the STA completes the transmission of the uplink data stream to the AP, the STA may initiate a block response revocation process to release the resources of the AP as soon as possible.
  • the process includes:
  • the AC After the uplink data stream transmission is completed, the AC receives a block acknowledgement deletion request message sent by the AP.
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • Scenario 2 After the preset time period, the AP does not receive the uplink data stream sent by the STA. To release the resources of the AP as soon as possible, the AC initiates a block response revocation process.
  • the process includes:
  • the AC receives a timing notification message sent by the AP, and the timing notification message indicates that a time of a block response established by the AP and the STA is timed out;
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the preset time period may be determined by the response receiving rule.
  • the timing of the timer that is, the uplink data stream sent by the STA is not received when the timer expires.
  • the block response cancellation process of the scenario 1 includes:
  • the AC receives a block acknowledgement deletion request message sent by the AP.
  • the block response deletion request message carries the TID of the uplink data stream.
  • the STA actively initiates a block acknowledgement revocation process, and sends a block acknowledgement delete request message to the AP, and the AP forwards the block acknowledgement delete request message to the AC.
  • the forwarding rule described in the foregoing embodiment is further used to instruct the AP to send a block acknowledgement deletion request message to the AC. Therefore, after the AP receives the block acknowledgement deletion request message sent by the STA, the AP sends the block acknowledgement deletion request message to the AC according to the forwarding rule.
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release resources required for establishing a block response allocated for the uplink data stream.
  • the block response deletion indication message carries the TID of the uplink data stream.
  • the AP releases the resources required for establishing a block response allocated for the uplink data stream according to the TID of the uplink data stream.
  • the AC sends a block response deletion response message to the AP.
  • the block response cancellation process of the scenario 2 the method performed by the AC side further includes:
  • the AC receives a timing notification message sent by the AP, where the timing notification message indicates that a time of a block response established by the AP and the STA is timed out.
  • a timer is set in the AP. After the timer expires, the AP still does not receive the uplink data stream sent by the STA, and the AP reports a timing notification message to the AC, indicating that the time of the block response established by the AP and the STA is timed out, for example, a timing notification message. You can carry a timeout notification to Timeout Notification.
  • the timer set by the AP may be set according to the timer information carried in the block response receiving rule sent by the AC.
  • the timing notification message carries TID information of the uplink data stream.
  • the AC sends a block acknowledgement deletion request message to the AP.
  • the AC receives a block acknowledgement deletion response message sent by the AP.
  • the forwarding rule described in the foregoing embodiment is further used to instruct the AP to send a block response deletion response message to the AC. Therefore, after the AP receives the block acknowledgement delete response message sent by the STA, the AP sends the block acknowledgement delete response message to the AC according to the forwarding rule.
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to indicate that the AP releases a resource required for establishing a block response allocated for the uplink data stream.
  • the block response deletion indication message carries the TID of the uplink data stream.
  • the AP releases the resources required for establishing a block response allocated for the uplink data stream according to the TID of the uplink data stream.
  • the AP is required to release a resource required for establishing a block response allocated for the uplink data stream, and may send a block response deletion response message to the AP.
  • the block response deletion response message may carry indication information, where the AP is instructed to release resources required for establishing a block response allocated for the uplink data stream.
  • the resources required to indicate that the AP is released to establish a block response for data stream allocation may refer to the foregoing manner.
  • the function of the control plane and the forwarding plane of the AP is decoupled in the process of establishing the block response mechanism, and the decision mechanism of the control plane, that is, the block response is implemented by the AC, thereby reducing the management and configuration cost of the AP, and possibly also reducing The cost of deployment and evolution of subsequent WLAN systems.
  • the AC can learn the service type information of the service layer and the priority of the uplink data stream, and the AC can further consider the service type and/or the priority of the uplink data stream when making the decision, thereby It can provide a block response mechanism that is more reasonable and effective for different users and different services, and improve service quality.
  • the embodiment of the present invention provides a scenario in which the STA transmits the uplink data stream to the network side through the AP, and initiates a transmission mode in which the AP establishes a block response for the uplink data stream, based on the centralized control type WLAN network system shown in FIG.
  • a method for establishing a WLAN block response, as shown in FIG. 8, the method performed by the AP side includes:
  • the station STA determines to establish a block response with the access point AP to the uplink data stream, and sends a block acknowledgement setup request message to the AP
  • the AP sends the block acknowledgement setup request message to the access controller AC.
  • the block response setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the AP receives a block response setup response message sent by the AC, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the AP sends a block response setup response message to the STA according to the block response setup response message.
  • the embodiment decouples the forwarding plane and the control plane of the AP, and the decision of the network side block response mechanism is completed by the AC, and the AP is in the process of STA and AC negotiation.
  • the message between the STA and the AC is forwarded, that is, the block response setup request message sent by the STA is forwarded to the AC, and the block response response message sent by the AC is forwarded to the STA.
  • the AP acts only as a forwarding device during STA and AC negotiation. As an achievable manner, after receiving the block response setup request sent by the STA, the AP sends the block response setup request message to the AC according to the forwarding rule, where the forwarding rule is used to indicate that the AP is to the AC.
  • the block acknowledgement setup request message is sent.
  • the forwarding rule is pre-configured in an AP.
  • the AP may also send the block acknowledgement setup request message to the AC according to the indication of the AC.
  • Specific methods include:
  • the AP sends the block acknowledgement setup request message to the AC according to a forwarding rule sent by the AC.
  • the AP receives a block response setup response sent by the AC. Before the message, the method also includes:
  • the AP allocates, according to the block response receiving rule, a resource required to establish a block response for the uplink data stream.
  • the AP may also generate a block response receiving rule of the uplink data stream by itself.
  • the block response revocation process has the following two scenarios:
  • Scenario 1 After the STA completes the transmission of the uplink data stream to the AP, the STA may initiate a block response revocation process to release the resources of the AP as soon as possible.
  • the process includes:
  • the AP receives a block response deletion indication message sent by the AC, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream;
  • the AP releases, according to the block acknowledgement deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • Scenario 2 After the preset time period, the AP does not receive the uplink data stream sent by the STA. To release the resources of the AP as soon as possible, the AC initiates a block response revocation process.
  • the process includes:
  • the AP After the preset period of time, the AP sends a timing notification message to the AC, where the timing notification message indicates that the time of the block response established by the AP and the STA is timed out;
  • the AP receives a block response deletion indication message sent by the AC, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream;
  • the AP releases, according to the block acknowledgement deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • the block response revocation process of the scenario 1 shown in FIG. 9 is performed by the AP side.
  • Methods include:
  • the AP receives a block acknowledgement deletion request message sent by the STA.
  • the AP sends the block acknowledgement deletion request message to the AC.
  • the AP receives a block response deletion indication message sent by the AC, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the AP releases, according to the block acknowledgement deletion indication message, a resource required to establish a block response allocated to the uplink data stream.
  • the AP receives a block acknowledgement deletion response message sent by the AC.
  • the AP sends a block response deletion response message to the STA.
  • the block response revocation process of the scenario 2 includes:
  • 1001 The preset time period, the AP sends a timing notification message to the AC, where the timing notification message indicates that the time of the block response established by the AP and the STA is timed out.
  • the AP receives a block acknowledgement deletion request message sent by the AC.
  • the AP sends the block acknowledgement deletion request message to the STA.
  • the AP receives a block response deletion response message sent by the STA, and sends the block response deletion response message to the AC.
  • the AP receives a block response deletion indication message sent by the AC, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the AP releases, according to the block acknowledgement deletion indication message, a resource required to establish a block response allocated to the uplink data stream.
  • the present application introduces the present application from the entire interaction process of STA, AP, and AC.
  • a method for establishing a WLAN block response includes:
  • the station STA sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the AP sends the block acknowledgement setup request message to the access controller AC.
  • the AC determines whether the AP and the STA are allowed to establish a block response for the uplink data stream.
  • the AC may determine, according to whether the current resource status of the AP meets a resource required for establishing a block response for the uplink data flow, to determine whether the AP and the STA are allowed to establish a block response for the uplink data flow.
  • the AC determines, according to the uplink data flow service type, whether the AP is allowed to establish a block response with the STA for the uplink data flow, where the preset rule includes a service that needs to establish a block response.
  • Type information is included in the uplink data flow service type.
  • the AC may determine, according to the service type of the uplink data stream, and the current resource status of the AP, whether the AP and the STA are allowed to establish a block response for the uplink data stream.
  • the AC may determine, according to the priority of the uplink data flow, whether the AP and the STA are allowed to establish a block response for the uplink data flow.
  • the AC may determine, according to the priority of the uplink data stream and the service type of the uplink data stream, whether the AP and the STA are allowed to establish a block response for the uplink data stream.
  • the AC sends a block response setup response message to the AP, where the block response setup response message is used to indicate, according to the determination result of the AC, whether the AC allows the AP and the STA to be the uplink data.
  • the flow establishes a block response.
  • the determining result of the AC includes that the AC allows a block response to be established for the AP and the STA, and does not allow a block response to be established for the AP and the STA.
  • the method for establishing the block response ends.
  • the AC further sends a block acknowledgement receiving rule to the AP.
  • the AP sends a block response setup response message to the STA.
  • the embodiment and the first embodiment are the embodiments of the different execution entities of the same invention.
  • the description of the technical features and the description of the solution in the present embodiment and the first embodiment can be referred to each other, and the embodiment is no longer used herein. Narration.
  • the function of the control plane and the forwarding plane of the AP is decoupled in the process of establishing the block response mechanism, and the decision mechanism of the control plane, that is, the block response is implemented by the AC, thereby reducing the management and configuration cost of the AP, and possibly also reducing The cost of deployment and evolution of subsequent WLAN systems.
  • the AC can learn the service type information of the service layer and the priority of the uplink data stream, and the AC can further consider the service type and/or the priority of the uplink data stream when making the decision, thereby It can provide a block response mechanism that is more reasonable and effective for different users and different services, and improve service quality.
  • Embodiments of the present invention provide a method for WLAN block response establishment. As shown in FIG. 12, the method performed by the AC side includes:
  • the access controller AC learns the downlink data flow, the AC determines whether the access point AP and the station STA can establish a block response for the downlink data flow, where the downlink data flow is sent to the AP through the AP. The data flow of the STA.
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA.
  • the AC receives a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow.
  • This embodiment provides a scheme for an AP and a STA to transmit a downlink data flow by using a block response mechanism.
  • the present embodiment decouples the forwarding plane and the control plane of the AP.
  • the decision of the network side block response mechanism is implemented by the AC.
  • the AP acts only as a forwarding device during the STA and AC negotiation. Forwarding the message between the STA and the AC, that is, forwarding the block-initiated request message initiated by the AC to the STA, and transmitting the block response response message sent by the STA Send it to the AC.
  • the AP may generate a block response sending rule by itself, and establish a block response for the downlink data flow according to the block response sending rule.
  • the AC may also send a block acknowledgement sending rule to the AP, instructing the AP to establish a block response for the downlink data stream.
  • the method further includes:
  • the AC sends a block response transmission rule to the AP, where the block response transmission rule instructs the AP to allocate resources required for establishing a block response for the downlink data stream.
  • the block response receiving rule includes information such as a sending buffer size, a scoreboard size, a timer, an ACK Policy, and a TID of the downlink data stream.
  • the timer is used to indicate duration information that the AP and the STA establish a block response for the downlink data flow.
  • the AC determines whether the AP and the STA can establish a block response for the downlink data flow, and can determine, according to the current resource status of the AP, whether there are sufficient resources to meet the The downstream data stream establishes a block acknowledgment. It should be understood that if the AC determines whether to establish a block response for the downlink data flow according to the current resource status of the AP, the AC also needs to acquire the current resource status of the AP.
  • a block response mechanism is applied to ensure data accuracy.
  • the AC determines whether the AP and the STA can establish a block response for the downlink data flow, and may be based on a service type of the downlink data flow. Specifically, as shown in FIG. 13, the method performed by the AC side includes:
  • the service type of the downlink data stream is obtained, where the downlink data stream is a data stream that is sent to the STA by the AP.
  • the DPI device After the downlink data stream from the application server arrives at the gateway, the DPI device detects the downlink data stream, locates the service type of the downlink data stream, and then reports the downlink data stream sent to the STA and its service type to the AC through the gateway.
  • the AC determines, according to the preset rule and the service type, that the downlink data flow needs to establish a block response, where the preset rule includes service type information of a data flow that requires a block response.
  • the preset rule includes service type information that needs to establish a block response.
  • the service types included in the preset rule are: service type information such as a file download service and a web browsing service.
  • the preset rule may be a service list that is allowed to be acknowledged by the downlink data flow, and is configured in the subscription information of the user.
  • the AC determines, according to the preset rule and the service type, whether the information of the service type is included in the preset rule, and if yes, the AC determines that the downlink data flow needs to establish a block response.
  • the AC determines that the downstream data stream does not need to establish a block response. In this scenario, the block response establishment process ends here.
  • the AC may determine to establish a block response for the downlink data flow, and the AC sends a block acknowledgement setup request message to the AP.
  • the AC may further acquire a current resource status of the AP, where the current resource status is a status of the resource that is established by the AP to establish a block response.
  • the AC functions as the configuration and management device of the AP, and obtains the current resource status of the AP from the AP through the extended interface between the AC and the AP.
  • the block response establishment procedure ends in this scenario. If yes, the AC may determine to establish a block response for the downlink data flow, and continue to perform step 1303.
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA.
  • the AC receives a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow.
  • the AC determines whether the AP and the STA can establish a block response for the downlink data flow, in the AP.
  • the priority of the downstream data stream can be considered.
  • the method performed by the AC side includes:
  • the access controller AC After the access controller AC learns the downlink data stream, the AC acquires the priority of the downlink data flow, where the downlink data flow is a data flow that is sent to the STA through the AP.
  • the priority of the downlink data stream includes: a user priority of the STA, or a service priority of the downlink data stream, or a combination obtained according to a user priority of the STA and a priority of the downlink data flow. priority.
  • the AC stores a mapping relationship between the STA identifier and the IP address of the STA. After the AC learns the downlink data stream, it obtains the destination address of the downlink data stream, that is, the IP address of the STA, and obtains the identifier of the STA according to the mapping relationship between the saved STA identifier and the IP address of the STA. As the management and configuration device of the AP, the AC stores the user subscription information of the STA, where the user subscription information includes the user priority of the STA. The AC acquires a user priority of the STA stored in the AC according to the identifier of the STA.
  • the AC obtains the service type of the downlink data stream, and obtains the service priority corresponding to the service type according to the preset relationship list, where the preset relationship list includes the correspondence between the service type and the service priority.
  • the calculation manner of the integrated priority of the downlink data stream may be corresponding to the calculation manner of the integrated priority of the uplink data stream.
  • the AC determines that the current resource status of the AP does not satisfy the resource required for establishing a block response for the downlink data flow, and the first downlink data flow exists, the AC determines the AP and the STA. A block acknowledgment is established for the upstream data stream.
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the AC determines that the current resource status of the AP meets the resources required to establish a block response for the downlink data flow, the AC determines that the AP and the STA establish a block response for the downlink data flow, where the AC Proceed to step 1403.
  • the AC determines that the current resource status of the AP is not satisfied, the block response is established for the downlink data flow.
  • the AC further determines whether there is a first downlink data flow. If yes, the AC determines that the AP and the STA establish a block response for the downlink data flow, and the AC continues to perform the step. 1403.
  • the block response establishment procedure ends in this scenario.
  • the block response sending rule sent by the AC to the AP further includes: indicating that the AP is released as the first downlink data stream.
  • a resource occupied by the block response is established for the AP to be able to allocate a corresponding resource to the STA.
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA.
  • the AC receives a block response setup response message sent by the AP, where the block response setup response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow.
  • the AC determines that the Whether the AP and the STA can establish a block response for the downlink data stream, in addition to considering the service type of the downlink data stream, may further consider the priority of the downlink data stream when the current resource of the AP is insufficient.
  • the method performed by the AC side further includes:
  • the access controller AC After the access controller AC knows the data stream, the service type of the downlink data stream is obtained, and the downlink data stream is a data stream that is sent to the STA by the AP.
  • the block response setup request is performed.
  • the message carries the TID of the downlink data stream.
  • the AC acquires a priority of the downlink data flow.
  • the AC determines, according to the preset rule and the service type, that the downlink data flow needs to establish a block response, where the preset rule includes service type information of a data flow that requires a block response.
  • the AC determines the preset rule according to a preset rule and the service type. Whether the information of the service type is included in the information, if included, the AC determines that the downlink data flow needs to establish a block response.
  • the AC determines that the downstream data stream does not need to establish a block response. In this scenario, the block response establishment process ends here.
  • the AC determines that the current resource status of the AP does not satisfy the resource required for establishing a block response for the downlink data flow, and the AC determines that the first downlink data flow exists, the AC determines the AP. Establishing a block response with the STA for the downlink data stream,
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the AC determines that the current resource status of the AP meets the resources required for establishing a block response for the downlink data flow. If the AC determines that the AP and the STA establish a block response for the downlink data flow.
  • the AC determines whether the current resource status of the AP does not meet the resources required for establishing a block response for the downlink data stream, the AC further determines whether the first downlink data stream exists, and if yes, the AC determines the AP and the The STA establishes a block response for the downlink data stream.
  • the block response establishment procedure ends in this scenario.
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA.
  • the AC receives a block response setup response message sent by the AP, where the block response setup response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data stream.
  • the block response sending rule sent by the AC to the AP further includes: indicating, by the AP, the resource occupied by the AP to establish a block response for the first downlink data flow,
  • the AP is configured to allocate a corresponding resource to the STA.
  • the block response revocation process has the following two scenarios:
  • the AC may initiate a block response revocation process to release the resources of the AP as soon as possible.
  • the process includes:
  • the AC After the downlink data stream is transmitted, the AC sends a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to instruct the AP to release a setup block response that is allocated for the downlink data stream. Resources needed.
  • Scenario 2 After receiving the preset time period, the STA does not receive the downlink data stream sent by the AP. To release the resources of the AP as soon as possible, the STA initiates a block response revocation process.
  • the process includes:
  • the AC sends a Block Reply Delete Indication message to the AP, where the Block Reply Delete Indication message is used to instruct the AP to release resources required for establishing a block response allocated for the downlink data stream.
  • the preset time period may be a timer indicated by the response receiving rule, that is, the downlink data stream sent by the STA is not received when the timer expires.
  • the block response revocation process of the scenario 1 includes:
  • the AC sends a block acknowledgement deletion request message to the AP.
  • the block acknowledgement deletion request message carries the TID of the downlink data stream.
  • the AC actively initiates a block acknowledgement revocation process, and sends a block acknowledgement delete request message to the AP, and the AP forwards the block acknowledgement delete request message to the STA. If the STA agrees, the STA sends a Block Reply Delete Response message to the AP.
  • the AC receives a block response deletion response message sent by the AP.
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the downlink data flow.
  • the block response deletion indication message carries the TID of the downlink data stream.
  • the AP releases the resources required to establish a block response allocated for the downlink data stream according to the TID of the downlink data stream.
  • the block response revocation process of the scenario 2 further includes:
  • the AC receives the block response timing notification message sent by the STA by using the AP, and the timing notification message indicates that a time of a block response established by the AP and the STA is timed out.
  • a timer is set in the STA. After the timer expires, the STA still does not receive the downlink data stream sent by the AP, and the STA reports a timing notification message to the AC, indicating that the time of the block response established by the AP and the STA is timed out, for example, a timing notification message. Can carry Timeout Notification.
  • the timing notification message carries TID information of the uplink data stream.
  • the AC sends a block acknowledgement deletion request message to the AP.
  • the AC receives a block response deletion response message sent by the AP.
  • the AC sends a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release resources required for establishing a block response allocated for the downlink data flow.
  • the block response deletion indication message carries the TID of the downlink data stream.
  • the AP releases the resources required to establish a block response allocated for the downlink data stream according to the TID of the downlink data stream.
  • a scheme in which an AP and a STA transmit a downlink data stream by using a block response mechanism is provided.
  • the function of the control plane and the forwarding plane of the AP is decoupled, and the decision mechanism of the control plane, that is, the block response is implemented by the AC, thereby reducing the management and configuration cost of the AP, and possibly reducing the subsequent WLAN system. Deployment and evolution costs.
  • the AC can learn the service type information of the service layer and the priority of the downlink data flow, and the AC can further consider the service type and/or the downlink data flow of the user when making the decision. Priority, so as to provide a more reasonable and effective block response mechanism for different users and different services, and improve service quality.
  • Embodiments of the present invention provide a method for WLAN block response establishment. As shown in FIG. 17, the method performed on the AP side includes:
  • the access point AP receives a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow.
  • the AP sends a block acknowledgement setup request message to the STA.
  • the AP receives a block response setup response message sent by the STA, where the block response setup response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow.
  • the AP sends the block response setup response message to the AC.
  • the method further includes:
  • the AP receives a block response transmission rule sent by the AC, and the block response transmission rule instructs the AP to allocate resources required for establishing a block response for the downlink data stream.
  • the block acknowledgment sending rule further includes: indicating, by the AP, the resource occupied by the AP to establish a block acknowledgment for the first downlink data flow, for the AP to allocate the corresponding resource to the STA.
  • the present application introduces the present application from the entire interaction process of STA, AP, and AC.
  • the AC considers the resource status of the AP, the service type of the downlink service flow, and the user priority of the STA as an example.
  • a method for establishing a WLAN block response includes:
  • the access controller AC learns a downlink data flow, where the downlink data flow is a data flow that is sent to the STA by the AP.
  • the AC determines whether the access point AP and the station STA can establish a block response for the downlink data flow.
  • the AC may determine, according to whether the current resource status of the AP meets a resource required for establishing a block response for the downlink data flow, and determine whether the access point AP and the station STA need to establish a block response for the downlink data flow.
  • the AC determines, according to the preset rule and the service type, whether the access point AP and the station STA need to establish a block response for the downlink data flow, where the preset rule includes a need to establish a block response.
  • Business type information is included in the preset rule and the service type.
  • the AC may determine, according to the service type of the downlink data stream, and the current resource status of the AP, whether the access point AP and the station STA need to establish a block response for the downlink data flow.
  • the AC may determine, according to the priority of the downlink data flow, whether the access point AP and the station STA need to establish a block response for the downlink data flow.
  • the AC may determine, according to the priority of the downlink data flow and the service type of the downlink data flow, whether the access point AP and the station STA need to establish a block response for the downlink data flow. .
  • the AC determines whether the access point AP and the station STA need to establish a block response for the downlink data flow.
  • the access point AP and the station STA need to establish a block response for the downlink data flow.
  • the AC sends a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message requests the AP to establish a block response with the STA.
  • the AP sends a block acknowledgement setup request message to the STA.
  • the AP receives a block response setup response message sent by the STA.
  • the AP sends a block response setup response message to the AC, where the block acknowledgement response message indicates that the STA allows the AP and the STA to establish a block response for the downlink data flow.
  • the AC further sends a block response sending rule to the AP.
  • a scheme in which an AP and a STA transmit a downlink data stream by using a block response mechanism is provided.
  • the control plane and forwarding plane of the AP Functional decoupling the decision mechanism of the control plane, that is, the block response, is implemented by the AC, which can reduce the management and configuration cost of the AP, and may also reduce the deployment and evolution cost of the subsequent WLAN system.
  • the AC can learn the service type information of the service layer and the priority of the downlink data flow, and the AC can further consider the service type and/or the priority of the downlink data flow when making the decision, thereby It can provide a block response mechanism that is more reasonable and effective for different users and different services, and improve service quality.
  • An embodiment of the present invention provides an access controller AC 190.
  • the AC 190 includes a processor 1901, a memory 1902, a bus 1903, a receiver 1904, and a transmitter 1905.
  • the processor 1901, the memory 1902, the receiver 1904, and the transmitter 1905 are connected by a bus 1903 and complete communication with each other.
  • Processor 1901 may be a single core or multi-core central processing unit, or a particular integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the memory 1902 may be a high speed random access memory 1902 (Random Access Memory, RAM for short) memory 1902, or a non-volatile memory 1902, such as at least one disk memory 1902.
  • RAM Random Access Memory
  • Memory 1902 is for storing computer execution instructions 19021. Specifically, the program code may be included in the computer execution instruction 19021.
  • the receiver 1904 is configured to: after the station STA determines to establish a block response with the access point AP for the uplink data stream, and send a block acknowledgement setup request message to the AP, receive the block response setup sent by the AP. a request message, the block response setup request message is used to request the AP and the STA to establish a block response for the uplink data stream;
  • the processor 1901 is configured to determine that the AP and the STA are allowed to establish a block response for the uplink data stream.
  • the transmitter 1905 is configured to send a block acknowledgement response message to the AP, where the block acknowledgement response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the block response setup request message carries a service identifier TID of the uplink data stream
  • the processor 1901 is specifically configured to acquire the uplink according to the TID of the uplink data stream.
  • the preset rule includes service type information that needs to establish a block response.
  • the processor 1901 is specifically configured to acquire a priority of the uplink data stream.
  • the first uplink data stream has a lower priority than the uplink data stream, and the AP has established an uplink data stream for which the block responds.
  • the sender 1905 is further configured to send a block acknowledgement receiving rule to the AP, where the block acknowledgement receiving rule is used to indicate that the AP allocates resources required for establishing a block response to the uplink data stream.
  • the receiver 1904 is further configured to: after the uplink data stream is transmitted, receive a block acknowledgement deletion request message sent by the AP;
  • the transmitter 1905 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the receiver 1904 is further configured to receive a timing notification message sent by the AP, where the timing notification message indicates that a time of a block response established by the AP and the STA is timed out;
  • the transmitter 1905 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the sender 1905 is further configured to send a forwarding rule to the AP, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the method performed by the AC 190 provided in this embodiment corresponds to the method described in the first embodiment. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiment. No longer.
  • An embodiment of the present invention provides an access point AP 200.
  • the AP 200 includes a processor 2001, a memory 2002, a bus 2003, a receiver 2004, and a transmitter 2005.
  • the processor 2001, the memory 2002, the receiver 2004, and the transmitter 2005 are connected by a bus 2003 and complete communication with each other.
  • Processor 2001 may be a single core or multi-core central processing unit, or a particular integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the memory 2002 may be a high-speed random access memory (2002) (Random Access Memory (RAM) memory 2002) or a non-volatile memory (2002), such as at least one disk storage device 2002.
  • RAM Random Access Memory
  • the memory 2002 is used to store computer execution instructions 20021. Specifically, the program code may be included in the computer execution instruction 20021.
  • the transmitter 2005 is configured to send the block response to the access controller AC after the station STA determines to establish a block response with the access point AP to the uplink data stream and sends a block acknowledgement setup request message to the AP. Establishing a request message, where the block response setup request message is used to request the AP and the STA to establish a block response for the uplink data stream;
  • the receiver 2004 is configured to receive the block response setup response message sent by the AC, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream. .
  • the receiver 2004 is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule is used to instruct the AP to allocate a resource required for establishing a block response to the uplink data stream. ;
  • the processor 2001 is configured to allocate, according to the block response receiving rule, a resource required for establishing a block response for the uplink data stream.
  • the transmitter 2005 is further configured to: after the uplink data stream is transmitted, send a block response deletion request message to the AC;
  • the receiver 2004 is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream. ;
  • the processor 2001 is configured to release, according to the block acknowledgement deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • the transmitter 2005 is further configured to: after the preset time period, send a timing notification message to the AC, where the timing notification message indicates that the time that the AP establishes a block response with the STA times out;
  • the receiver 2004 is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream. ;
  • the processor 2001 is configured to release, according to the block acknowledgement deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • the transmitter 2005 is further configured to send the block acknowledgement setup request message to the AC according to a forwarding rule, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request to the AC Message.
  • the method performed by the AP 200 of the present embodiment corresponds to the method of the second embodiment. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiments, and details are not described herein again.
  • the embodiment of the present invention provides an access controller AC 210.
  • the AC 210 includes a processor 2101, a memory 2102, a bus 2103, a receiver 2104, and a transmitter 2105.
  • the processor 2101, the memory 2102, the receiver 2104, and the transmitter 2105 are connected by a bus 2103 and complete communication with each other.
  • Processor 2101 may be a single core or multi-core central processing unit, or a particular integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the memory 2102 may be a high speed random access memory 2102 (Random Access Memory, RAM for short) memory 2102 or a non-volatile memory 2102 (for example, at least one disk memory 2102).
  • RAM Random Access Memory
  • non-volatile memory 2102 for example, at least one disk memory 2102.
  • the memory 2102 is for storing computer execution instructions 21021. Specifically, the program code may be included in the computer execution instruction 21021.
  • the processor 2101 is configured to determine, after the access controller AC learns the downlink data flow, whether the access point AP and the station STA can establish a block response for the downlink data flow, where
  • the downlink data stream is a data stream that is sent to the STA by the AP;
  • the transmitter 2105 is configured to send a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA;
  • the receiver 2104 is configured to receive a block response setup response message sent by the AP, where the block response setup response message is used to indicate that the STA allows a block response to be established with the AP for the downlink data flow.
  • the processor 2101 is specifically configured to acquire a service type of the downlink data stream.
  • the preset rule includes service type information of a data flow that requires a block response.
  • the processor 2101 is specifically configured to acquire a priority of the downlink data stream.
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the priority of the downlink data stream includes: a user priority of the STA, or a service priority of the downlink data flow, or a service according to the user priority of the STA and the downlink data flow.
  • the overall priority of priority includes: a user priority of the STA, or a service priority of the downlink data flow, or a service according to the user priority of the STA and the downlink data flow.
  • the sender 2105 is further configured to send a block response sending rule to the AP, where the block response sending rule indicates a resource required by the AP to establish a block response for the downlink data stream.
  • the transmitter 2105 is further configured to: after the downlink data stream is transmitted, send a block acknowledgement deletion indication message to the AP, where the block acknowledgement deletion indication message is used to indicate that the AP is released as a The resources required to establish a block response for the downlink data flow allocation.
  • the receiver 2104 is further configured to receive a block acknowledgement timing notification message sent by the STA, where the block acknowledgement timing notification message indicates that a time of a block response established by the AP and the STA is timed out;
  • the transmitter 2105 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to indicate that the AP release is established for the downlink data flow allocation. The resources required for the block to respond.
  • the method performed by the AC 210 of the present embodiment corresponds to the method of the foregoing embodiment 3. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access point AP 220.
  • the AP 220 includes a processor 2201, a memory 2202, a bus 2203, a receiver 2204, and a transmitter 2205.
  • the processor 2201, the memory 2202, the receiver 2204, and the transmitter 2205 are connected by a bus 2203 and complete communication with each other.
  • Processor 2201 may be a single core or multi-core central processing unit, or a particular integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the memory 2202 may be a high speed random access memory 2202 (Random Access Memory, RAM for short) memory 2202 or a non-volatile memory 2202 (for example, at least one disk memory 2202).
  • RAM Random Access Memory
  • the memory 2202 is for storing computer execution instructions 22021. Specifically, the program code may be included in the computer execution instruction 22021.
  • the receiver 2204 is configured to receive a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow.
  • the transmitter 2205 is configured to send a block acknowledgement setup request message to the STA.
  • the receiver 2204 is further configured to receive a block acknowledgement response message sent by the STA, where the block acknowledgement response message is used to indicate that the STA allows the AP and the STA to establish a block for the downlink data stream. Answer
  • the transmitter 2205 is further configured to send the block acknowledgement setup response message to the AC.
  • the receiver 2204 is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule indicates that the AP is The resources required to establish a block response for the downlink data flow allocation.
  • the method performed by the AP 220 of the present embodiment corresponds to the method of the fourth embodiment. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access controller AC 230.
  • the AC 230 includes a receiving unit 2301, a determining unit 2302, and a sending unit 2303.
  • the receiving unit 2301 is configured to receive the block acknowledgement setup request message sent by the AP, where the block acknowledgement setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the determining unit 2302 is configured to determine that the AP and the STA are allowed to establish a block response for the uplink data stream.
  • the sending unit 2303 is configured to send a block response setup response message to the AP, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream.
  • the block response setup request message carries a service identifier TID of the uplink data stream
  • the determining unit 2302 is configured to acquire, according to the TID of the uplink data stream, a service type of the uplink data stream.
  • the preset rule includes service type information that needs to establish a block response.
  • the determining unit 2302 is specifically configured to acquire a priority of the uplink data stream.
  • the first uplink data stream has a lower priority than the uplink data stream, and the AP has established an uplink data stream for which the block responds.
  • the sending unit 2303 is further configured to send a block response receiving rule to the AP, where the block response receiving rule is used to instruct the AP to allocate resources required for establishing a block response for the uplink data stream.
  • the receiving unit 2301 is further configured to: after the uplink data stream is transmitted, receive a block acknowledgement deletion request message sent by the AP;
  • the sending unit 2303 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the receiving unit 2301 is further configured to receive a timing notification message sent by the AP, where the timing notification message indicates that a time of a block response established by the AP and the STA is timed out;
  • the sending unit 2303 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the uplink data stream.
  • the sending unit 2303 is further configured to send a forwarding rule to the AP, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request message to the AC.
  • the AC 230 provided in this embodiment can be used to implement the corresponding block acknowledgment method. Therefore, the technical effects can be obtained by referring to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access point AP 240.
  • the AC 240 includes: a sending unit 2401 and a receiving unit 2402.
  • the sending unit 2401 is configured to send the block response setup request message to the access controller AC, where the block acknowledgement setup request message is used to request the AP and the STA to establish a block response for the uplink data stream.
  • the receiving unit 2402 is configured to receive the block response setup response message sent by the AC, where the block acknowledgement response response message is used to indicate that the AC allows the AP and the STA to establish a block response for the uplink data stream. .
  • the AC 240 further includes: a resource management unit 2403.
  • the receiving unit 2402 is further configured to receive, by the AC, a block response receiving rule, where the block response receiving rule is used to instruct the AP to allocate a resource required for establishing a block response to the uplink data stream;
  • the resource management unit 2403 is configured to: according to the block response receiving rule, the uplink The data stream allocates the resources needed to establish a block response.
  • the sending unit 2401 is further configured to: after the uplink data stream is transmitted, send a block response deletion request message to the AC;
  • the receiving unit 2402 is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream. ;
  • the resource management unit 2403 is further configured to release, according to the block response deletion indication message, a resource required for establishing a block response allocated for the uplink data stream.
  • the sending unit 2401 is further configured to: after the preset time period, send a timing notification message to the AC, where the timing notification message indicates that the time of the block response established by the AP and the STA is timed out;
  • the receiving unit 2402 is further configured to receive, by the AC, a block response deletion indication message, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated to the uplink data stream. .
  • the sending unit 2401 is configured to send the block acknowledgement setup request message to the AC according to a forwarding rule, where the forwarding rule is used to instruct the AP to send the block acknowledgement setup request to the AC. Message.
  • the AC 240 provided in this embodiment can be used to implement the block acknowledgment method corresponding to the foregoing implementation. Therefore, the technical effects can be obtained by referring to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access controller AC 250.
  • the AC 250 includes: a determining unit 2501, a sending unit 2502, and a receiving unit 2503.
  • the determining unit 2501 is configured to determine, after the access controller AC learns the downlink data flow, whether the access point AP and the station STA can establish a block response for the downlink data flow, where the downlink data flow is the AP a data stream sent to the STA;
  • the sending unit 2502 is configured to send a block acknowledgement setup request message to the AP, where the block acknowledgement setup request message indicates that the AP establishes a block response with the STA;
  • the receiving unit 2503 is configured to receive a block response setup response message sent by the AP, where the block acknowledgement response response message is used to indicate that the STA is allowed to be the downlink number with the AP.
  • a block response is established based on the flow.
  • the determining unit 2501 is specifically configured to acquire a service type of the downlink data stream.
  • the preset rule includes service type information of a data flow that requires a block response.
  • the determining unit 2501 is specifically configured to acquire a priority of the downlink data stream.
  • the first downlink data stream is a downlink data stream whose priority is lower than the priority of the downlink data stream, and the AP has established a block response for the AP.
  • the priority of the downlink data stream includes: a user priority of the STA, or a service priority of the downlink data flow, or a service according to the user priority of the STA and the downlink data flow.
  • the overall priority of priority includes: a user priority of the STA, or a service priority of the downlink data flow, or a service according to the user priority of the STA and the downlink data flow.
  • the sending unit 2502 is further configured to send a block response sending rule to the AP, where the block response sending rule indicates a resource required by the AP to establish a block response for the downlink data stream.
  • the sending unit 2502 is further configured to: after the downlink data stream is transmitted, send a block response deletion indication message to the AP, where the block response deletion indication message is used to indicate that the AP is released as a The resources required to establish a block response for the downlink data flow allocation.
  • the receiving unit 2503 is further configured to: receive, by the AC, a block response timing notification message that is sent by the STA, where the block response timing notification message indicates that a time of a block response established by the AP and the STA is timed out. ;
  • the sending unit 2502 is further configured to send a block response deletion indication message to the AP, where the block response deletion indication message is used to instruct the AP to release a resource required for establishing a block response allocated for the downlink data stream.
  • the AC 250 provided in this embodiment can be used to implement the block acknowledgment method corresponding to the foregoing implementation. Therefore, the technical effects can be obtained by referring to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access point AP 260.
  • the AP 260 includes: a receiving unit 2601, and a sending unit 2602.
  • the receiving unit 2601 is configured to receive a block acknowledgement setup request message sent by the access controller AC, where the block acknowledgement setup request message indicates that the AP and the station STA establish a block response for the downlink data flow;
  • the sending unit 2602 is configured to send a block acknowledgement setup request message to the STA.
  • the receiving unit 2601 is configured to receive a block response setup response message sent by the STA, where the block acknowledgement response response message is used to indicate that the STA allows the AP and the STA to establish a block response for the downlink data flow. ;
  • the sending unit 2602 is configured to send the block acknowledgement setup response message to the AC.
  • the receiving unit 2601 is further configured to receive a block response receiving rule sent by the AC, where the block response receiving rule indicates a resource required by the AP to establish a block response for the downlink data stream.
  • the AC 260 provided in this embodiment can be used to implement the block acknowledgment method corresponding to the implementation of the foregoing embodiment. Therefore, the technical effects that can be obtained are also described in the foregoing method embodiments, and details are not described herein again.
  • the disclosed terminal and method may be implemented in other manners.
  • the terminal embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Can choose according to actual needs Some or all of the units are used to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé d'établissement d'un accusé de réception de bloc de données de WLAN, un AC et un AP destinés à réduire les coûts de gestion et de configuration de l'AP dans l'établissement de l'accusé de réception de bloc de WLAN, et à réduire les coûts de déploiement de suivi et d'évolution d'un système de WLAN. Le procédé comprend les étapes suivantes : après qu'une station (STA) a déterminé que la STA et un AP établissent un accusé de réception de bloc pour un flux de données de liaison montante, et a envoyé à l'AP un message de demande d'établissement d'un accusé de réception de bloc, un AC reçoit le message de demande d'établissement d'un accusé de réception de bloc envoyé par l'AP, ledit message étant utilisé pour demander à l'AP et à la STA d'établir un accusé de réception de bloc pour le flux de données de liaison montante ; l'AC autorise l'AP et la STA à établir un accusé de réception de bloc pour le flux de données de liaison montante ; et l'AC envoie à l'AP un message de réponse d'établissement d'accusé de réception de bloc, ledit message étant utilisé pour indiquer que l'AC autorise l'AP et la STA à établir un accusé de réception de bloc pour le flux de données de liaison montante. La présente invention est applicable au domaine technique des télécommunications, et concerne en particulier l'établissement d'un accusé de réception de bloc de WLAN.
PCT/CN2015/081581 2015-06-16 2015-06-16 Procédé d'établissement d'un accusé de réception de bloc de données de wlan, contrôleur d'accès (ac) et point d'accès (ap) WO2016201624A1 (fr)

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PCT/CN2015/081581 WO2016201624A1 (fr) 2015-06-16 2015-06-16 Procédé d'établissement d'un accusé de réception de bloc de données de wlan, contrôleur d'accès (ac) et point d'accès (ap)
CN201580059344.2A CN107113783B (zh) 2015-06-16 2015-06-16 一种wlan块应答建立的方法、ac和ap

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PCT/CN2015/081581 WO2016201624A1 (fr) 2015-06-16 2015-06-16 Procédé d'établissement d'un accusé de réception de bloc de données de wlan, contrôleur d'accès (ac) et point d'accès (ap)

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