WO2017041591A1 - Method and apparatus for adding block acknowledgement, and method and apparatus for deleting block acknowledgement - Google Patents

Abstract

Embodiments of the present invention provide a method and an apparatus for adding block acknowledgement, and a method and an apparatus for deleting block acknowledgement. The method for adding block acknowledgement comprises: sending an Add Block Acknowledgement (ADDBA) request frame to at least two terminal devices, the ADDBA request frame carrying ADDBA request information corresponding to the at least two terminal devices; and receiving an ADDBA response frame sent by each of the at least two terminal devices. The method for deleting block acknowledgement comprises: sending a Delete Block Acknowledgement (DELBA) request frame to at least two terminal devices, the DELBA request frame carrying DELBA request information corresponding to the at least two terminal devices; and receiving an acknowledgement frame, for acknowledging that the DELBA request frame is received, sent by each of the at least two terminal devices. In this way, signaling overheads can be saved, and channel utilization can be improved.

Description

Method and device for establishing and removing block confirmation communication mechanism

This application claims priority to Chinese Patent Application No. 201510564483.2, entitled "Method and Apparatus for Establishing and Demolition Block Confirmation Communication Mechanism", filed on September 8, 2015, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications and, more particularly, to a method and apparatus for establishing and tearing down a block acknowledgment communication mechanism.

Background technique

Block Acknowledgement ("BA") transmission is a mechanism introduced by the Institute of Electrical and Electronics Engineers ("IEEE") 802.11e standard, which allows the sender to not receive an acknowledgment frame. In the case of sending a series of data frames, the sender sends a Block ACK Request (BAR), and the receiver needs to feed back a series of data frames sent by the BA to the sender after receiving the BAR. Undergo verification. Since the receiving end transmits the acknowledgement of a series of data frames in one BA frame, the transmission time of the acknowledgement frame can be reduced, and the channel utilization rate can be improved.

In order to enable the transmission and reception of data frames between a pair of transceivers using a BA transmission mechanism, the transceiver needs to establish a BA communication through a BA setup procedure. The BA establishment process includes: the sender sends a BA setup request, the receiver replies to the BA setup response, and interacts with the parameter information required for the BA communication in the BA setup request and response frame. If the BA mechanism is not required to communicate between the transmitter and the receiver, the transmitter may send a Delete Block Acknowledgement (DELBA) request frame to cancel the previously established BA communication mechanism.

The establishment and removal process of the BA mechanism in the related art is performed only for communication between one transmitter and one receiver, and when used for communication between multiple users, signaling overhead is large and channel utilization is low.

Summary of the invention

The invention provides a method and a device for establishing and removing a block confirmation communication mechanism, so that the network is designed The establishment and removal of block confirmation communication mechanisms between multiple standby devices can be implemented through a single process, which can reduce signaling overhead during communication and improve channel utilization.

In a first aspect, a method for establishing a block acknowledgment communication mechanism is provided, comprising: transmitting an ADDBA request frame for establishing a block acknowledgment communication mechanism to at least two terminal devices, the ADDBA request frame carrying an ADDBA corresponding to the at least two terminal devices Requesting information; receiving an ADDBA response frame sent by each of the at least two terminal devices.

A second aspect provides a method for establishing a block acknowledgment communication mechanism, including: receiving an ADDBA request frame for establishing a block acknowledgment communication mechanism sent by a network device, where the ADDBA request frame is sent by the network device to at least two terminal devices, where The ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices; and sends an ADDBA response frame to the network device.

A third aspect provides a method for establishing a block acknowledgment communication mechanism, including: receiving an ADDBA request frame for establishing a block acknowledgment communication mechanism sent by each terminal device of at least two terminal devices; and sending an ADDBA response to the at least two terminal devices a frame, the ADDBA response frame carrying ADDBA response information corresponding to the at least two terminal devices.

A fourth aspect provides a method for establishing a block acknowledgment communication mechanism, including: sending an ADDBA request frame for establishing a block acknowledgment communication mechanism to a network device; receiving an ADDBA response frame sent by the network device, where the ADDBA response frame is a network device direction And sending, by the at least two terminal devices, the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

A fifth aspect provides a method for establishing a block acknowledgment communication mechanism, including: receiving a request frame sent by a terminal device, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgment BA communication mechanism; The terminal device transmits an acknowledgement frame confirming successful reception of the request frame.

A sixth aspect provides a method for establishing a block acknowledgment communication mechanism, comprising: sending a request frame to a network device, the request frame carrying request information for requesting establishment of a block acknowledgment BA communication mechanism, and a buffer status report BSR; The acknowledgment sent by the network device successfully receives the acknowledgment frame of the request frame.

A seventh aspect, a method for removing a block acknowledgment communication mechanism, comprising: sending a detachment block acknowledgment mechanism DELBA request frame to at least two terminal devices, the DELBA request frame carrying a DELBA corresponding to the at least two terminal devices Requesting information; receiving an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame.

In an eighth aspect, a method for removing a block acknowledgment communication mechanism is provided, including: receiving a network design Deleting a block to send a DELBA request frame, the DELBA request frame is sent by the network device to at least two terminal devices, the DELBA request frame carrying DELBA request information corresponding to the at least two terminal devices; The network device sends an acknowledgement frame confirming receipt of the DELBA request frame.

A ninth aspect provides a network device, including: a sending module, configured to send, to at least two terminal devices, an ADDBA request frame for establishing a block acknowledgment communication mechanism, where the ADDBA request frame carries an ADDBA corresponding to the at least two terminal devices And a receiving module, configured to receive an ADDBA response frame sent by each of the at least two terminal devices.

According to a tenth aspect, a terminal device includes: a receiving module, configured to receive an ADDBA request frame for establishing a block acknowledgment communication mechanism sent by a network device, where the ADDBA request frame is sent by the network device to at least two terminal devices, where The ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices, and the sending module is configured to send an ADDBA response frame to the network device.

In an eleventh aspect, a network device is provided, including: a receiving module, configured to receive an ADDBA request frame for establishing a block acknowledgement communication mechanism sent by each terminal device of the at least two terminal devices; and a sending module, configured to send the at least two The terminal devices send an ADDBA response frame, and the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

According to a twelfth aspect, a terminal device includes: a sending module, configured to send an ADDBA request frame for establishing a block acknowledgment communication mechanism to a network device; and a receiving module, configured to receive an ADDBA response frame sent by the network device, where the ADDBA response The frame is sent by the network device to at least two terminal devices, and the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

A thirteenth aspect, a network device, comprising: a receiving module, configured to receive a request frame sent by a terminal device, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; And a sending module, configured to send, to the terminal device, an acknowledgement frame that confirms that the request frame is successfully received.

According to a fourteenth aspect, a terminal device is provided, including: a generating module, configured to generate a request frame, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; The request frame is sent to the network device.

According to a fifteenth aspect, a network device is provided, including: a sending module, configured to send, to at least two terminal devices, a detachment block acknowledgment mechanism DELBA request frame, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices; and a receiving module, configured to receive an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame.

According to a sixteenth aspect, a terminal device includes: a receiving module, configured to receive a DELBA request frame of a teardown block acknowledgment communication mechanism sent by a network device, where the DELBA request frame is sent by the network device to at least two terminal devices, The DELBA request frame carries DELBA request information corresponding to the at least two terminal devices, and the sending module is configured to send, to the network device, an acknowledgement frame that acknowledges receipt of the DELBA request frame.

Based on the foregoing technical features, the method and apparatus for establishing and removing a block acknowledgment communication mechanism provided by the embodiments of the present invention enable a network device and a plurality of terminal devices to establish and remove a block acknowledgment communication mechanism, which can be implemented by a single process. It can reduce the signaling overhead in the communication process and improve the channel utilization.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

1 is a schematic flowchart of a method of establishing a block acknowledgment communication mechanism according to an embodiment of the present invention;

2 is a schematic diagram of a frame structure of an ADDBA request frame according to an embodiment of the present invention;

FIG. 3 is another schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to an embodiment of the present invention; FIG.

4 is still another schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to another embodiment of the present invention; FIG.

6 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention;

FIG. 7 is another schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

FIG. 8 is still another schematic diagram of a method of establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention. Sexual flow chart;

FIG. 9 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

FIG. 10 is another schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

11 is a schematic diagram of a frame structure of an ADDBA response frame according to an embodiment of the present invention;

FIG. 12 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

FIG. 13 is another schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

FIG. 14 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention; FIG.

FIG. 15 is a schematic diagram of a frame structure of a request frame according to an embodiment of the present invention; FIG.

16 is a schematic flowchart of a method of establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention;

17 is a schematic flowchart of a method of removing a stand confirmation communication mechanism according to an embodiment of the present invention;

FIG. 18 is a schematic diagram showing a frame structure of a DELBA request frame according to an embodiment of the present invention; FIG.

19 is a schematic flowchart of a method of removing a stand confirmation communication mechanism according to another embodiment of the present invention;

20 is a schematic flow chart of a method of removing a stand confirmation communication mechanism according to still another embodiment of the present invention;

FIG. 21 is a schematic flowchart of a method for replying an acknowledgement frame according to an embodiment of the present invention; FIG.

FIG. 22 is a schematic diagram showing a frame structure of a multi-user block acknowledgment request frame according to an embodiment of the present invention; FIG.

FIG. 23 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism of a single-user multi-service type according to an embodiment of the present invention.

24 is a schematic diagram showing a frame structure of a multi-service setup block acknowledgment communication mechanism request frame according to an embodiment of the present invention;

25 is a schematic diagram of a frame structure of a multi-service setup block acknowledgment communication mechanism response frame according to an embodiment of the present invention;

26 is a schematic diagram of a method of multi-service teardown block acknowledgment communication mechanism according to an embodiment of the present invention; Sexual flow chart;

FIG. 27 is a schematic diagram showing a frame structure of a multi-service teardown block acknowledgment communication mechanism request frame according to an embodiment of the present invention; FIG.

28 is a schematic block diagram of a network device according to an embodiment of the present invention;

29 is a schematic block diagram of a terminal device according to an embodiment of the present invention;

FIG. 30 is a schematic block diagram of a network device according to another embodiment of the present invention; FIG.

FIG. 31 is a schematic block diagram of a terminal device according to another embodiment of the present invention; FIG.

32 is a schematic block diagram of a network device according to still another embodiment of the present invention;

FIG. 33 is a schematic block diagram of a terminal device according to still another embodiment of the present invention; FIG.

FIG. 34 is a schematic block diagram of a network device according to still another embodiment of the present invention; FIG.

FIG. 35 is a schematic block diagram of a terminal device according to still another embodiment of the present invention; FIG.

FIG. 36 is a schematic block diagram of a network device according to still another embodiment of the present invention; FIG.

FIG. 37 is a schematic block diagram of a terminal device according to still another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example, Global System of Mobile Communication ("GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") system, Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE frequency division duplex (Frequency Division Duplex) , referred to as "FDD" system, LTE Time Division Duplex ("TDD"), Universal Mobile Telecommunication System (UMTS), and future 5G communication systems.

It should be understood that, in the embodiment of the present invention, the terminal device may also be referred to as a user equipment (User Equipment, referred to as "UE"), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and a remote terminal. , mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device can be a wireless local area network (Wireless Local Area Networks, The station (Station, abbreviated as "ST"), which can be referred to as "WLAN", can be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP") phone, or a wireless local loop (Wireless Local). Loop, referred to as "WLL" station, Personal Digital Assistant (PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable Equipment and terminal equipment in future 5G networks.

The network device is a device for communicating with the mobile device, and the network device may be an Access Point (AP) in the WLAN, Code Division Multiple Access (GSM) or A base station (Base Transceiver Station, abbreviated as "BTS") in CDMA"), which may also be a base station (NodeB, abbreviated as "NB") in WCDMA, or a Long Term Evolution (LTE). An evolved base station (Evolutional Node B, referred to as "eNB" or "eNodeB"), or a relay station or an access point, or an in-vehicle device, a wearable device, and a network device in a future 5G network.

1 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism, which may be performed by a network device. As shown in FIG. 1, the method 100 includes:

S110. Send an establishment block confirmation communication mechanism ADDBA request frame to at least two terminal devices, where the ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices.

S120. Receive an ADDBA response frame sent by each terminal device of the at least two terminal devices.

Specifically, the network device sends, to each of the at least two terminal devices, an ADDBA request that carries the Add Block Acknowledgement (ADDBA) request information corresponding to all the terminal devices ( Request) frame, after which the network device receives an ADDBA Response (Response) frame sent by each terminal device for the ADDBA request frame.

That is, the ADDBA request information corresponding to different terminal devices may be carried in the same ADDBA request frame, and the ADDBA request frame may be referred to as a “multi-user ADDBA request frame”, and the network device simultaneously sends the ADDBA request frame to the ADDBA request frame. Different terminal devices, different terminal devices determine the request information related to themselves according to the information carried in the ADDBA request frame, and establish a BA communication mechanism with the network device according to the request information related to itself.

Therefore, in the method for establishing a block acknowledgment communication mechanism, the network device sends an ADDBA request frame carrying ADDBA request information corresponding to all terminal devices to a plurality of terminal devices, thereby enabling the network device and the plurality of terminal devices Establish multiple independent BA communication mechanisms The process is implemented through a process, which can effectively reduce signaling overhead and improve channel utilization.

It should be noted that, in the embodiment of the present invention, the network communication mechanism between the network device and the terminal device can be understood as a series of data frames that can be confirmed by the network frame between the network device and the terminal device.

Optionally, in S110, the network device may send the ADDBA request frame to the at least two terminal devices by multicasting or broadcasting.

Alternatively, in S110, the network device may send an Orthogonal Frequency Division Multiple Access (OFDMA) physical layer protocol data unit (Physical Layer Protocol Data Unit) to the at least two terminal devices. As a "PPDU"), each subchannel within the system bandwidth occupied by the OFDMA PPDU carries ADDBA request information corresponding to each of the at least two terminal devices.

That is, the ADDBA request frame sent by the network device to the at least two terminal devices is not a single radio resource control (Media Access Control, abbreviated as "MAC") layer protocol data unit (MPDU). Transmitted in the form of multiple MPDUs in the form of OFDMA (ie each MPDU occupies a different frequency subchannel), each MPDU is an ADDBA Request frame sent to a terminal device. On this basis, the trigger frame sent to each terminal device can be aggregated (aggregated into an A-MPDU) and sent out to the ADDBA Request frame sent to the terminal device.

Optionally, in S110, the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices includes at least one of the following information: User ID (usually Association Identification, Association Identification, abbreviated as "AID") information, Dialog Token information, Block ACK Parameter Set information, Block ACK Timeout Value information, and BA Block ACK Strarting Sequence Control (abbreviated as "BA SSC") information.

In other words, the ADDBA request frame may include a user information part transmitted to each terminal device, and may also include a public information part transmitted to all terminal devices, and the user information part may include user identification information, session identification information, and BA parameter set information. , part or all of the BA timeout information and the BA initial sequence number control information. And the information in the user information portion can be located in the public information portion. If all the information is located in the user information part, there is no public information part, and conversely, if all the information is located in the public information part, there is no part of the user information.

In the embodiment of the present invention, optionally, the ADDBA request frame may be the frame structure shown in FIG. 2. As shown in FIG. 2, the ADDBA frame may be an active frame Action Frame (the type in the MAC header is Management, and the Subtype is Action), and the ADDBA request frame includes a MAC frame header ( Header) Domain, Frame Body Domain, and Frame Check Sequence (FCS) domain. The Frame Body field includes a Category field, a Block ACK Action field, and a plurality of User Information (Per STA Info) fields, and each user information field includes an AID field, a Dialog Token field, and a Block ACK Parameter Set. Field, Block ACK Timeout Value field and Block ACK Strarting Sequence Control field. Alternatively, the Frame Body field includes a Category field, a Block ACK Action field, a Dialog Token field, and a plurality of Per STA Info fields. At this time, each Per STA Info field includes an AID field, a Block ACK Parameter Set field, a Block ACK Timeout Value field, and Block ACK Strarting Sequence Control field. And optionally, the user information field may further include a Groupcast with Retries (GCR) group address element (Group Address Element) field, a multi-band (Multi-band) field, a TCLAS field, and an ADDBA. Extension field.

Further, the value of the Category field can be set to 3 (representing Block ACK), and the Bolck ACK Action can be set to any value other than 0, 1, and 2, indicating that the type of the frame is ADDBA sent to at least two terminal devices. Request frame.

Optionally, as shown in FIG. 3, the method 100 further includes:

S130. Receive an acknowledgement frame that each terminal device of the at least two terminal devices successfully receives the ADDBA request frame according to the first resource indication information and/or the first transmission parameter information.

That is, after each terminal device successfully receives the ADDBA request frame sent by the network device, the acknowledgement frame acknowledgement may be sent to the network device according to the transmission parameter indicated by the first transmission parameter information on the transmission resource indicated by the first resource allocation information. The acknowledgment frame of the ADDBA request frame is successfully received, where the first resource allocation information may be subchannel allocation information, and the terminal device can acquire the location of the resource block that sends the acknowledgment frame after reading the subchannel information, where the first transmission parameter can be The information includes a transmission time (PPDU length) information, a Modulation and Coding Scheme ("MCS") information, and a Cyclic Prefix Length information. Further, the first resource allocation information and/or the first transmission parameter information may be located in a public information part or a user information part of the ADDBA Request frame. The invention is not limited thereto.

And, further, the subchannels for transmitting the acknowledgment frame determined by the different terminal devices according to the first resource indication information are orthogonal in the form of OFDMA. In other words, different terminal devices can transmit an acknowledgment frame in the form of OFDMA.

In the embodiment of the present invention, optionally, the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information.

Optionally, the network device may further send the first trigger frame to the at least two terminal devices, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information. That is, if the first resource indication information and/or the first transmission parameter information is not included in the ADDBA request frame, the network device may carry the first resource indication information in the first trigger frame sent to the terminal device. And/or the first transmission parameter information. Moreover, further, the first trigger frame may carry indication information indicating that the type of the acknowledgment frame replied by the terminal device is an ACK frame.

Optionally, S120 may be specifically: receiving, by each of the at least two terminal devices, an ADDBA response frame according to the second resource allocation information and/or the second transmission parameter information.

Thus, S120 may be: receiving an ADDBA response frame sent by each of the at least two terminal devices through one of the subchannels orthogonal in the form of OFDMA.

It should be noted that, when each of the at least two terminal devices sends an ADDBA response frame by using one of the subchannels orthogonal to the OFDMA format, the ADDBA request frame received by each terminal device may include only The request corresponding to the terminal device establishes the request information of the BA communication mechanism, and the time of the ADDBA request frame received by the different terminal devices may also be different.

Optionally, the second resource allocation information and/or the second transmission parameter information may be carried in the ADDBA request frame, or the network device may send a second trigger frame to the at least two terminal devices, where the second trigger The frame carries the second resource allocation information and/or the second transmission parameter information.

Further, after reading the second resource allocation information, the terminal device can learn the location of the resource block used for sending the ADDB Response frame, and after the second parameter information is read, the transmission parameter in the transmission process can be obtained. Optionally, the second trigger frame may further carry indication information indicating that the frame type of the response frame triggered by the second trigger frame is an ADDBA Response frame.

Specifically, the second trigger frame may be a new Action Frame, and the Frame Body part includes a Category information field and a Block ACK Action information field, where the value of the Category information field may be 3 (representing Block ACK), Block. The ACK Action can be any value other than 0, 1, or 2, indicating the Trigger for ADDBA Response.

Optionally, the second trigger frame may further include a Dialog Token information field, and the value thereof is The value of the Dialog Token in the ADDBA request frame is the same, indicating that the second trigger frame triggers the ADDBA Response frame for the ADDBA Request frame in S110.

Optionally, as shown in FIG. 4, the method 100 further includes:

S140. Send a multi-user acknowledgment frame to the at least two terminal devices, where the multi-user acknowledgment frame carries indication information for indicating that the ADDBA response frame sent by the at least two terminal devices is successfully received.

Specifically, after receiving the ADDBA Response frame sent by the at least two terminal devices, the network device may send an acknowledgement frame for confirming the reception to the at least two terminal devices, and the network device may not send the acknowledgement frame for confirming the reception to the terminal device. In this case, if the network device receives the ADDBA Response frame sent by the terminal device, the BA communication mechanism establishment process is completed, otherwise the BA communication mechanism fails to be established.

The embodiments of the present invention are described in detail below with reference to the specific examples.

FIG. 5 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to another embodiment of the present invention. As shown in FIG. 5, the method 200 includes:

S201: an access point (Access Point, referred to as "AP") sends a multi-user (ADD-A) ADDBA Request frame to a plurality of stations (Station, referred to as "STA");

The multi-user ADDBA Request frame includes ABBDA request information transmitted to a plurality of STAs, and the ADDBA request information includes the same information as the request information included in the ADDBA request frame mentioned in the method 100.

S202. The AP sends a trigger frame to multiple STAs.

The trigger frame is configured to trigger multiple STAs to send an acknowledgement frame in the form of OFDMA, where the acknowledgement frame indicates that the STA has received the Multi-user ADDBA Request frame in S201.

S203. The multiple STAs send an acknowledgement frame (ACK) to the AP.

S204. The AP sends a trigger frame to multiple STAs.

The trigger frame is used to trigger multiple STAs to send an ADDBA Response frame in the form of OFDMA.

S205. The multiple STAs send an ADDBA Response frame to the AP.

S206. The AP sends a multi-user ack (MACK) to multiple STAs.

It should be understood that the method 200 may include only S201 and S205, or only S201, S204 and S205, or only S201, S203, S204 and S205, etc., that is, the AP may not After sending a trigger frame to multiple STAs, multiple STAs may not send a response frame to the AP after receiving the Multi-user ADDBA Request frame sent by the AP. For example, if the AP does not receive the STA sent within the preset time, After confirming the frame, it is considered that the STA successfully receives the Multi-user ADDBA Request frame. After receiving the ADDBA Response frame sent by multiple STAs, the AP may not send a MACK to the STA. The default AP may complete the establishment of the BA communication mechanism after receiving the ADDBA Response frame. Otherwise, the BA communication mechanism fails to be established.

Therefore, in the method for transmitting an acknowledgement frame, the network device simultaneously transmits the same multi-user ADDBA request frame including the ADDBA request information corresponding to all the terminal devices of the multiple terminal devices to the plurality of terminal devices, Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

The method for establishing a block acknowledgment communication mechanism according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 5, and the following is a detailed description of the establishment according to the embodiment of the present invention from the terminal device side with reference to FIG. 6 to FIG. Block method of confirming the communication mechanism. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.

FIG. 6 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention. The method can be performed by a terminal device, as shown in FIG. 6, the method 300 includes:

S310. Receive an ADDBA request frame that is sent by the network device, where the ADDBA request frame is sent by the network device to at least two terminal devices, where the ADDBA request frame carries an ADDBA request corresponding to the at least two terminal devices. information;

S320. Send an ADDBA response frame to the network device.

Specifically, the terminal device receives an ADDBA Request frame that is sent by the network device to the at least two terminal devices and corresponds to all the terminal devices, and then sends an ADDBA Response frame for the ADDBA request frame to the network device.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the terminal device receives an ADDBA request frame that is sent by the network device to the plurality of terminal devices and carries ADDBA request information corresponding to all the terminal devices, thereby enabling the network device to A plurality of independent processes for establishing a BA communication mechanism between multiple terminal devices are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

Optionally, S310 is specifically: receiving, sending, by the network device, by multicast or broadcast. The ADDBA request frame.

Optionally, S310 is specifically: receiving an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU occupies a bearer on each subchannel within the system bandwidth. ADDBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, block confirmation BA parameter set information, BA timeout time information, and BA initial serial number control information.

Optionally, as shown in FIG. 7, the method further includes:

S330. Send an acknowledgement frame confirming that the ADDBA request frame is successfully received to the network device according to the first resource indication information and/or the first transmission parameter information.

Optionally, the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information. Alternatively, the terminal device may receive the first trigger frame sent by the network device, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information.

Optionally, S320 is specifically configured to: send the ADDBA response frame to the network device according to the second resource allocation information and/or the second transmission parameter information.

Optionally, the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information. Alternatively, the terminal device may receive the second trigger frame sent by the network device, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information.

In the embodiment of the present invention, optionally, the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame.

In the embodiment of the present invention, optionally, the second trigger frame further carries the session identifier information.

Optionally, S320 is specifically: sending the ADDBA response frame to the network device by using one of the subchannels orthogonal to the OFDMA form.

Optionally, as shown in FIG. 8, the method further includes:

S340. Receive a multi-user acknowledgment frame sent by the network device, where the multi-user acknowledgment frame bearer is used to indicate that the network device successfully receives the indication information of the ADDBA response frame sent by the at least two terminal devices.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the terminal device receives an ADDBA request message corresponding to all terminal devices that the network device sends to the plurality of terminal devices. The ADDBA request frame of the information can be implemented by a single process of establishing a BA communication mechanism between the network device and the plurality of terminal devices, which can effectively reduce signaling overhead and improve channel utilization.

A method of establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention will be described in detail below with reference to FIGS. 9 through 11. As shown in FIG. 9, the method 400 includes:

S410. Receive an establishment block acknowledgement communication mechanism ADDBA request frame sent by each terminal device of the at least two terminal devices.

S420. Send an ADDBA response frame to the at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

Specifically, the network device receives an ADDBA Request frame of the Add Block Acknowledgement (ADDBA) request information sent by each of the at least two terminal devices, and then the network device sends the An ADDBA Response frame sent by the at least two terminal devices for the ADDBA request frame, where the ADDBA Response frame carries ADDBA response information corresponding to the at least two terminal devices.

That is, after the network device receives the ADDBA Request frame sent by the multiple terminal devices, the ADDBA response information corresponding to the different terminal devices may be carried in the same ADDBA response frame, and the ADDBA response frame may be referred to as multiple users. The ADDBA response frame, the network device sends the ADDBA response frame to different terminal devices, and completes a process of establishing a BA communication mechanism with the plurality of terminal devices.

Therefore, the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, after receiving the ADDBA request frame sent by the multiple terminal devices, the network device sends the ADDBA response information corresponding to the multiple terminal devices to the multiple terminal devices. The ADDBA response frame. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, after receiving the ADDBA Request frame sent by each terminal device, the network device may send an acknowledgement ACK frame to the terminal device to confirm the receipt of the ADDBA Request frame, or may not invent the ACK frame. The invention is not limited thereto.

Optionally, in S410, the ADDBA request frame sent by each terminal device of the at least two terminal devices further carries a Buffer Status Report (abbreviated as “BSR”) corresponding to the terminal device. This makes it possible to further reduce the signaling overhead in the communication process.

Optionally, S420 may be: sending orthogonal frequency division multiple access physics to the at least two terminal devices. The layer protocol data unit is an OFDMA PPDU, and each subchannel within the system bandwidth occupied by the OFDMA PPDU carries ADDBA response information corresponding to each of the at least two terminal devices.

That is, the ADDBA response frame sent by the network device to the at least two terminal devices is not a single radio resource control (Media Access Control, abbreviated as "MAC") layer protocol data unit (MAC protocol data unit, referred to as "MPDU"). The form is transmitted in the form of multiple MPDUs in the form of OFDMA (ie, each MPDU occupies a different frequency subchannel), and each MPDU is an ADDBA Response frame sent to a terminal device. On this basis, the trigger frame sent to each terminal device can be aggregated (aggregated into an A-MPDU) and sent out to the ADDBA Response frame sent to the terminal device.

Optionally, as shown in FIG. 10, the method further includes:

S430. Receive an acknowledgement frame that each terminal device of the at least two terminal devices successfully receives the ADDBA response frame according to the resource allocation information and/or the transmission parameter information.

Optionally, the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. Alternatively, the network device may send a trigger frame to the at least two terminal devices, where the trigger frame includes the resource allocation information and/or the transmission parameter information.

That is, after each terminal device successfully receives the ADDBA response frame sent by the network device, the ADDBA response frame may be successfully sent to the network device according to the transmission parameter indicated by the transmission parameter information on the transmission resource indicated by the resource allocation information. The acknowledgment frame, wherein the resource allocation information may be subchannel allocation information, and the terminal device can acquire the location of the resource block that sends the acknowledgment frame after reading the subchannel information, and the transmission parameter may include the acknowledgment time of the ACK frame (PPDU) Length information, Modulation and Coding Scheme ("MCS") information, Cyclic Prefix Length information, and the like. Further, the resource allocation information and/or the transmission parameter information may be located in a public information part or a user information part of the ADDBA Response frame. The invention is not limited thereto.

In the embodiment of the present invention, optionally, the ADDBA response information corresponding to each of the at least two terminal devices in the ADDBA response information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information (usually associated identification, Association Identification, abbreviated as "AID"), session identification information (Dialog Token), status code (Status Code) information, BA parameter set (Block ACK Parameter Set) information, and BA Block ACK Timeout Value information.

In the embodiment of the present invention, optionally, the ADDBA response frame may be a frame structure as shown in FIG. As shown in FIG. 11, the ADDBA response frame may be a new active frame Action Frame, and the ADDBA response frame includes a MAC Header field, a Frame Body field, and a Frame Check Sequence. , referred to as "FCS" domain, wherein the Frame Body field includes a Category field, a Block ACK Action field, and a plurality of User Information (Per ATA Info) fields. The user information portion of each user information field includes an AID field, a Dialog Token field, a Status Code field, a Block ACK Parameter Set field, and a Block ACK Timeout Value field.

Further, the value of the Category field may be set to 3 (representing Block ACK), and the Bolck ACK Action may be set to any value other than 0, 1, and 2, indicating that the type of the frame is an ADDBA response sent to at least two terminal devices. frame.

Therefore, the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, after receiving the ADDBA request frame sent by the multiple terminal devices, the network device sends the ADDBA response information corresponding to the multiple terminal devices to the multiple terminal devices. The ADDBA response frame. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

The method for establishing a block acknowledgment communication mechanism according to an embodiment of the present invention is described in detail above with reference to FIG. 9 to FIG. 11. The following is a detailed description of the establishment according to the embodiment of the present invention from the terminal device side with reference to FIG. 12 and FIG. Block method of confirming the communication mechanism. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.

FIG. 12 is a schematic flowchart of a method of establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention. The method can be performed by a terminal device, as shown in FIG. 12, the method 500 includes:

S510. Send an ADDBA request frame that establishes a block acknowledgement communication mechanism to the network device.

S520: Receive an ADDBA response frame sent by the network device, where the ADDBA response frame is sent by the network device to at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

Specifically, the terminal device sends an ADDBA Request (Request) frame that establishes an Add Block Acknowledgement (ADDBA) request information to the network device, and the receiving network device sends the ADDBA to the at least two terminal devices. Request frame ADDBA response (Response) frame, the ADDBA Response frame carries the at least two ends The ADDBA response information corresponding to the end device.

Therefore, the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, after the terminal device sends an ADDBA request frame to the network device, receives the ADDBA response information that the network device sends to the plurality of terminal devices and carries the ADDBA response information corresponding to the multiple terminal devices. The ADDBA response frame. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

Optionally, in S510, the ADDBA request frame further carries a buffer status report BSR.

Optionally, S520 is specifically: receiving an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU occupies a bearer on each subchannel within the system bandwidth. ADDBA response information corresponding to each of the at least two terminal devices.

Optionally, as shown in FIG. 13, the method further includes:

S530. Send, to the network device, an acknowledgement frame that confirms that the ADDBA response frame is successfully received according to the resource allocation information and/or the transmission parameter information.

Optionally, the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. Alternatively, the terminal device may receive a trigger frame sent by the network device, where the trigger frame includes the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, optionally, the ADDBA response information corresponding to each of the at least two terminal devices in the ADDBA response information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information.

Therefore, the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, after the terminal device sends an ADDBA request frame to the network device, receives the ADDBA response information that the network device sends to the plurality of terminal devices and carries the ADDBA response information corresponding to the multiple terminal devices. The ADDBA response frame. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

A method for establishing a block acknowledgment communication mechanism according to still another embodiment of the present invention will be described in detail below with reference to FIG. 14 and FIG. 15. The method may be performed by a network device. As shown in FIG. 14, the method 600 includes:

S610, receiving a request frame sent by the terminal device, the request frame carrying request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism;

S620. Send an acknowledgement frame confirming that the request frame is successfully received to the terminal device.

Specifically, the network device sends a request frame that is sent by the terminal device and is used to request the establishment of the block confirmation BA communication mechanism and the buffer status report (BSR), and then sends the request frame to the terminal device. Confirm that the confirmation frame of the request frame was successfully received.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the terminal device sends the request information for requesting to establish the BA communication mechanism and the buffer status report BSR to be sent to the network device in the same request frame, thereby saving Signaling overhead during communication.

Optionally, in S610, the request information includes at least one of the following information: Dialog Token information, Block ACK Parameter Set information, and Block ACK Timeout Value information. The Block ACK Starting Sequence Control (abbreviated as "BA SCC") information.

In the embodiment of the present invention, optionally, the request frame may be the frame structure shown in FIG. As shown in FIG. 15, the request frame includes a MAC header (Header) field, a frame body (Frame Body) field, and a frame check sequence (FCS) field, where the Frame Body field includes a BSR. A BSR Info field and an ADDBA Request Info field, wherein the ADDBA request information field includes a Dialog Token field, a Block ACK Parameter Set field, a Block ACK Timeout Value field, and a Block ACK Strarting Sequence Control field.

Optionally, the BSR information field and the ADDBA Response Info field in FIG. 15 may also be located in the MAC Header field, which is not limited by the disclosure.

In the embodiment of the present invention, the request frame is a QoS data frame or a QoS null frame, and the request frame may also be other types of frames. Not limited.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the terminal device sends the request information for requesting to establish the BA communication mechanism and the buffer status report BSR to be sent to the network device in the same request frame, thereby saving Signaling overhead during communication.

The method for establishing a block acknowledgment communication mechanism according to an embodiment of the present invention is described in detail above with reference to FIG. 14 and FIG. 15, and a block acknowledgment communication according to an embodiment of the present invention will be described in detail from the terminal device side with reference to FIG. Mechanism approach. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.

16 is a schematic diagram of a method of establishing a block acknowledgment communication mechanism in accordance with still another embodiment of the present invention. Flowchart, the method can be performed by a terminal device, the method 700 comprising:

S710. Generate a request frame, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism.

S720. Send the request frame to a network device.

Specifically, the terminal device generates a request frame carrying request information and a Buffer Status Report (BSR) for requesting to establish a block acknowledgement BA communication mechanism, and then sends the request frame to the network device.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the request frame generated by the terminal device carries the request information for requesting to establish the BA communication mechanism and the buffer status report BSR, thereby saving signaling in the communication process. Overhead.

In the embodiment of the present invention, optionally, after the terminal device sends the request frame to the network device, the acknowledgement frame sent by the network device to acknowledge receipt of the request frame may be received.

Optionally, in S710, the request information includes at least one of the following information: session identification information, BA parameter set information, BA timeout information, and BA initial sequence number control information.

In the embodiment of the present invention, optionally, the request frame is a quality of service QoS data frame or a QoS blank frame.

Therefore, in the method for establishing a block acknowledgment communication mechanism in the embodiment of the present invention, the network device receives the request message sent by the terminal device and carries the request information for requesting to establish the BA communication mechanism and the buffer status report BSR, thereby saving the communication process. Signaling overhead in .

In the communication process, when the terminal device does not need to use the block confirmation BA communication mechanism for communication, the BA communication mechanism removal process in the prior art may be used to remove the BA communication mechanism, and other methods may be used for the BA communication mechanism. tear down.

A method for removing a block acknowledgment communication mechanism according to an embodiment of the present invention, which may be performed by a network device, as shown in FIG. 17, the method 800 includes:

S810, sending, to at least two terminal devices, a teardown block confirmation communication mechanism DELBA request frame, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices;

S820. Receive an acknowledgement frame sent by each terminal device of the at least two terminal devices to acknowledge receipt of the DELBA request frame.

Specifically, the network device sends, to each of the at least two terminal devices, a DELBA request that carries the Deletion Block Acknowledgement ("DELBA") request information corresponding to all the terminal devices ( Request) Frame, after which the network device receives an acknowledgment frame sent by each terminal device for the DELBA request frame.

That is, the DELBA request information corresponding to different terminal devices may be carried in the same DELBA request frame, and the DELBA request frame may be referred to as a multi-user DELBA request frame, and the network device simultaneously sends the DELBA request frame to different The terminal device, after receiving the DELBA frame, each terminal device sends an acknowledgement frame for confirming reception to the network device.

Therefore, in the method for removing the block confirmation communication mechanism of the embodiment of the present invention, the network device sends a DELBA request frame carrying the DELBA request information corresponding to all the terminal devices to the plurality of terminal devices, thereby the network device and the plurality of terminal devices A plurality of independent processes for dismantling the BA communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

Optionally, in S810, the network device may send, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA) PPDU, where the OFDMA PPDU occupies on each subchannel within the system bandwidth and the at least DELBA request information corresponding to each of the two terminal devices.

That is, the DELBA request frame sent by the network device to the at least two terminal devices is not a single radio resource control (Media Access Control, abbreviated as "MAC") layer protocol data unit (MPDU). Is transmitted in the form of multiple MPDUs in the form of Orthogonal Frequency Division Multiple Access (OFDMA) (ie each MPDU occupies a different frequency subchannel), each The MPDUs are DELBA Request frames sent to a terminal device. On this basis, the trigger frame sent to each terminal device can be aggregated (aggregated into an A-MPDU) and sent out to the DELBA Request frame sent to the terminal device.

Optionally, in S810, the DELBA request information corresponding to each of the at least two terminal devices in the DELBA request information corresponding to the at least two terminal devices includes at least one of the following information: User identification information (usually Association Identification, AID for short), DELBA Parameter Set information, and Reason Code information.

In the embodiment of the present invention, optionally, the DELBA request frame may be the frame structure shown in FIG. 18. As shown in FIG. 18, the DELBA frame may be an active frame Action Frame (the type in the MAC Header is Management, and the Subtype is Action), and the DELBA request frame includes a MAC frame header ( Header) domain, frame body domain and A Frame Check Sequence (FCS) field, where the Frame Body field includes a Category field, a Block ACK Action field, and a plurality of User Information (Per STA Info) fields. The user information portion of each user information field includes an AID field, a DELBA Parameter Set field, and a Reason Code field. Optionally, the user information part may further include a Groupcast with Retries (GCR) group address element (Group Address Element) field, a multi-band (Multi-band) field, and a TCLAS field.

Optionally, S820 is specifically: receiving an acknowledgement frame that is received by each terminal device of the at least two terminal devices according to the resource indication information and/or the transmission parameter information to receive the DELBA request frame.

Optionally, the DELBA request frame further carries the resource indication information and/or the transmission parameter information. Alternatively, the terminal device may send a trigger frame to the at least two terminal devices, where the trigger frame carries the resource allocation information and/or the transmission parameter information.

That is, after each terminal device successfully receives the DELBA request frame or the trigger frame sent by the network device, the acknowledgement frame may be successfully sent to the network device according to the transmission parameter indicated by the transmission parameter information on the transmission resource indicated by the resource allocation information. Receiving an acknowledgment frame of the DELBA request frame, where the resource allocation information may be subchannel allocation information, and the terminal device can acquire the location of the resource block that sends the acknowledgment frame after reading the subchannel information, and the transmission parameter may include confirming the ACK frame. Transmission time (PPDU length (Length)) information, Modulation and Coding Scheme ("MCS") information, Cyclic Prefix Length information, and the like. Further, the resource allocation information and/or the transmission parameter information may be located in a public information part or a user information part of the DELBA Request frame. The invention is not limited thereto.

Optionally, S820 is specifically: receiving, by each of the at least two terminal devices, an acknowledgement frame that receives the DELBA request frame by using an acknowledgement sent by one of the subchannels orthogonal to the OFDMA form. In other words, an acknowledgement frame transmitted by the at least two terminal devices in the form of OFDMA is received.

The embodiments of the present invention are described in detail below with reference to the specific examples.

FIG. 19 is a schematic flowchart of a method for removing a block acknowledgment communication mechanism according to another embodiment of the present invention. As shown in FIG. 19, the method 900 includes:

S901, an access point (Access Point, referred to as "AP") sends a multi-user (Multi-user) DELBA Request frame to a plurality of stations (Station, referred to as "STA");

The multi-user DELBA Request frame includes DELDA request information sent to a plurality of STAs, and the DELBA request information includes the same information as the request information in the DELBA request frame mentioned in the method 800.

S902. The AP sends a trigger frame to multiple STAs.

The trigger frame is configured to trigger multiple STAs to send an acknowledgement frame in the form of OFDMA, where the acknowledgement frame indicates that the STA has received the Multi-user DELBA Request frame in S201.

S903. A plurality of STAs send an acknowledgement frame (ACK) to the AP.

It should be understood that the method 900 may not include S902. In this case, the multi-user DELBA Request frame in S901 may include resource indication information and transmission parameter information, and multiple STAs may according to the resource indication information and transmission parameters included in the DELBA Request frame. The information sends an ACK frame to the network device.

Therefore, in the method for removing the block confirmation communication mechanism of the embodiment of the present invention, the network device sends a DELBA request frame carrying the DELBA request information corresponding to all the terminal devices to the plurality of terminal devices, thereby the network device and the plurality of terminal devices A plurality of independent processes for dismantling the BA communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

A method of removing the block acknowledgment communication mechanism according to still another embodiment of the present invention will be described in detail below from the terminal device side with reference to FIG. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.

FIG. 20 is a schematic flowchart of a method for removing a block acknowledgment communication mechanism according to still another embodiment of the present invention. The method may be performed by a terminal device. As shown in FIG. 20, the method 1000 includes:

S1010 receives a demolition block acknowledgment communication mechanism DELBA request frame sent by the network device, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices. ;

S1020: Send an acknowledgement frame confirming receipt of the DELBA request frame to the network device.

Specifically, the terminal device receives a DELBA request (Request) frame that is sent by the network device to the at least two terminal devices and carries the Delete Block Acknowledgement (DELTA) request information corresponding to all the terminal devices. An acknowledgment frame for the DELBA request frame is then sent to the network device.

Therefore, in the method for removing the block confirmation communication mechanism of the embodiment of the present invention, the terminal device receives a DELBA request frame that the network device sends to the plurality of terminal devices and carries the DELBA request information corresponding to all the terminal devices, thereby Multiple independent processes for removing the BA communication mechanism between multiple terminal devices are implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

Optionally, S1010 is specifically: receiving an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU occupies a bearer on each subchannel within the system bandwidth. DELBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the DELBA request information corresponding to one of the at least two terminal devices in the DELBA request information corresponding to all the terminal devices in the at least two terminal devices includes the following information. At least one of: user identification information, teardown parameter set information, reason code information.

Optionally, S1020 is specifically configured to send, to the network device, an acknowledgement frame that acknowledges receipt of the DELBA request frame according to the resource indication information and/or the transmission parameter information.

Optionally, the DELBA request frame further carries the resource indication information and/or the transmission parameter information. Or the terminal device receives the trigger frame sent by the network device, where the trigger frame carries the resource allocation information and/or the transmission parameter information.

Optionally, S1020 is specifically: sending, by using one of the subchannels orthogonal to the OFDMA form, an acknowledgement frame that acknowledges receipt of the DELBA request frame to the network device.

Therefore, in the method for removing the block confirmation communication mechanism of the embodiment of the present invention, the terminal device receives a DELBA request frame that the network device sends to the plurality of terminal devices and carries the DELBA request information corresponding to all the terminal devices, thereby Multiple independent processes for removing the BA communication mechanism between multiple terminal devices are implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

The embodiment of the invention further provides a method for the BA reply between the sending node and the receiving node after the BA communication mechanism has been established between the sending node and the receiving node. If the sending node sets the ACK Policy to Block Ack in the sent QoS Data Frame, the receiving node does not immediately reply the acknowledgment frame or the block acknowledgment frame ACK/BA after receiving the QoS Data Frame, but waits for the sending node to send the block. A Block Ack Request (BAR) frame is requested to obtain its ACK/BA. For multi-user transmission, such as AP data transmission with multiple STAs at the same time, AP A multi-user block Ack Request (Multi-user Block Ack Request is simply referred to as "MU-BAR") is required to request a request frame of a plurality of STAs.

The MU-BAR frame is usually used to request a BA frame from the STA. However, sometimes the transmitting node sends only one MAC protocol data unit MPDU before requesting the BA frame of the receiving node. At this time, the sending node only needs to obtain the confirmation of the receiving node. ACK frame. Alternatively, the transmitting node previously sent a management frame to the receiving node. Since the management frame does not have a sequence number, the transmitting node cannot obtain a BA frame from the receiving node, and only an ACK frame can be requested.

FIG. 21 is a schematic flowchart of a method for replying an acknowledgement frame according to an embodiment of the present invention. As shown in FIG. 21, the method 2000 includes:

S2010, the AP sends a multi-user block acknowledgement request frame MU-BAR to multiple station STAs;

The MU-BAR includes user information sent to each STA, where the user information includes a user identifier (which may be an AID), ACK/BA indication information, block acknowledgement request information, and resource allocation information, and the ACK/BA indication information is used for Instructing the STA whether to reply to the ACK frame or the BA frame, the block acknowledgement request information may include a BA SSC field, which is used to indicate on which resource block the STA sends the ACK frame or the BA frame.

S2020. The AP sends a MU-BAR frame to the multiple STAs.

S2030: After receiving the MU-BAR frame, each STA of the multiple STAs reads user information sent to the STA, acquires ACK/BA indication information, block acknowledgement request information, and resource allocation information, if ACK/BA indication The information indicates that the STA should reply to the ACK frame, then the STA replies with an ACK frame on the corresponding resource block; if the ACK/BA indication information indicates that the STA should reply to the BA frame, the STA replies to the BA frame on the corresponding resource block.

Optionally, a possible frame structure of the MU-BAR frame in S2010 is as shown in FIG. The Multi-BAR frame includes a MAC Header field, a Frame Body field, and a Frame Check Sequence (FCS) field, and the frame body field includes a bearer and is sent to all STAs. Common Bar Control Information Common Block Confirmation Request Control Information field and a plurality of STA Specific BAR Information fields carrying user information transmitted to each STA, the STA Specific BAR Information field includes A plurality of User Information (Per STA Info) fields, each Per STA Info field including: an AID field, an ACK/BA frame indication field, a TID field, and a Block ACK Starting Sequence Contorl field. In addition, the value rule of the ACK/BA frame indication field may be: ACK/BA=1 indicates that the STA should reply to the ACK frame, and ACK/BA=0 indicates that the STA should reply to the BA frame. also may Therefore, ACK/BA=0 indicates that the STA should reply to the ACK frame, and ACK/BA=1 indicates that the STA should reply to the BA frame. The invention is not limited thereto.

In addition, if the indication of ACK/BA is "reply ACK frame", the user information part may not include the Block Ack Starting Sequence Control field.

Further, in S2030, if the ACK/BA indication information acquired by the STA is “reply ACK frame”, when the STA successfully receives the previous frame, the ACK frame is returned; when the STA does not successfully receive the previous frame. When you do not reply to any frame, you can also reply to a different frame (not not ack, that is, not received) that is different from the ACK frame on the corresponding resource block.

FIG. 23 is a schematic flowchart of a method for establishing a block acknowledgment communication mechanism of a single-user multi-service type according to an embodiment of the present invention. As shown in FIG. 23, the method 3000 includes:

S3010: The sending end sends a Multi-TID ADDBA Request frame to the receiving end.

The Multi-TID ADDBA Request frame includes BA establishment request information for a plurality of service types (Traffic Identification, referred to as "TID"), specifically including a Block Ack Parameter Set field, and a BA timeout time (Block Ack Timeout). The Value) and the BA Ack Starting Sequence Control (BA SSC) may also include a Dialog Token field.

S3020: The receiving end returns an acknowledgement frame.

S3030: The receiving end sends a Multi-TID ADDBA Response frame to the sending end.

The Multi-TID ADDBA Response frame includes BA establishment response information for multiple TIDs, including a Block Ack Pparameter Set field, a Block Ack Timeout Value field, and a Status Code. The field may also include a Dialog Token field.

S3040: The sender replies with an acknowledgement frame.

Optionally, a possible frame structure of the Multi-TID ADDBA Request frame in S3010 is as shown in FIG. 24. It is an action frame (type in the MAC Header is management, subtype is action), and the Multi-TID ADDBA Request frame includes a MAC header field, a frame body, and a frame. A Frame Check Sequence (FCS) field, where the Frame Body field includes a Category field, a Block ACK Action field, a Dialog Token field, and multiple service information. (Per TID Info) field. Each service information field includes Block ACK The Parameter Set field, the Block ACK Timeout Value field, and the Block ACK Strarting Sequence Control field.

Further, the value of the Category field is 3 (indicating Block Ack), and the Block Ack Action field is set to any value other than 0, 1, 2, indicating Multi-TID ADDBA Request (because 0 means ADDBA Request, 1 means ADDBA Response, 2 means DELBA Request).

In addition, a possible frame structure of the Multi-TID ADDBA Response frame in S3030 is as shown in FIG. 25. It is an Action Frame (Type in the MAC Header is Management, and Subtype is Action). The Multi-TID ADDBA Response includes a MAC Header field and a Frame Body. a domain and a frame check sequence (FCS) field, wherein the frame body field includes a category field, a block ACK action field, and a Dialog Token field. Multiple Business Information (Per TID Info) fields. Each service information field Block ACK Parameter Set field, Block ACK Timeout Value field, and Status Code field.

Further, the value of the Category field in FIG. 25 is 3 (indicating Block Ack), and the Block Ack Action is set to any value other than 0, 1, 2, indicating a Multi-TID ADDBA Response frame.

In addition, the process of removing the block confirmation communication mechanism can also operate for a multi-service type, as shown in FIG. 26, the method 4000 includes:

S4010: The sending end sends a Multi-TID DELBA Request frame.

The Multi-TID DELBA Request frame includes BA communication mechanism teardown request information for multiple TIDs, specifically including DELBA Parameter Set information and Reason Code information;

S4020: The receiving end sends a response frame.

Optionally, a possible frame structure of the Multi-TID DELBA Request frame in the S4010 is as shown in FIG. 27, which is an Action Frame (Type in the MAC Header is Management, subtype (Subtype) is Action), the DELBA request frame includes a MAC Header field, a Frame Body field, and a Frame Check Sequence (FCS) field, where the Frame Body The domain includes a Category field, a Block ACK Action field, and a plurality of Service Information (Per TID info) fields. Each service information field includes a demolition block acknowledgment communication mechanism parameter set (DELBA Parameter) Set) field and Reason Code field.

Further, the value of the Category field in FIG. 27 is 3 (indicating Block Ack), and the value of the Block Ack Action field is set to any value other than 0, 1, 2, indicating Multi-TID DELBA Request.

In addition, the method in this embodiment can also be extended to a multi-user scenario, and only needs to add a user identifier (STA ID) field (such as an AID) in the service information field in FIG. 27 to represent information of different users, and the method 100 is reused. The method can be used to send frames.

The network device of the embodiment of the present invention will be described in detail below with reference to FIG. As shown in FIG. 21, the network device 10 includes:

The sending module 11 is configured to send, to the at least two terminal devices, an establishment block confirmation communication mechanism ADDBA request frame, where the ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices;

The receiving module 12 is configured to receive an ADDBA response frame sent by each of the at least two terminal devices.

Therefore, the network device in the embodiment of the present invention sends an ADDBA request frame carrying ADDBA request information corresponding to all terminal devices to multiple terminal devices, thereby establishing a BA communication mechanism between the network device and multiple terminal devices. A separate process is implemented through a process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, the sending module 11 is specifically configured to: send the ADDBA request frame to the at least two terminal devices by means of multicasting or broadcasting.

In the embodiment of the present invention, the sending module 11 is specifically configured to: send an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU to the at least two terminal devices, where the OFDMA PPDU occupies within the system bandwidth Each subchannel carries ADDBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, block confirmation BA parameter set information, BA timeout time information, and BA initial serial number control information.

In the embodiment of the present invention, the receiving module 12 is further configured to: receive, by each terminal device of the at least two terminal devices, the acknowledgement successfully received according to the first resource indication information and/or the first transmission parameter information. The acknowledgment frame of the ADDBA request frame.

In the embodiment of the present invention, optionally, the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information.

In the embodiment of the present invention, the sending module 11 is further configured to: send, to the at least two terminal devices, a first trigger frame, where the first trigger frame carries the first resource allocation information and/or the first Transfer parameter information.

In the embodiment of the present invention, the receiving module 12 is specifically configured to: receive an ADDBA response frame sent by each terminal device of the at least two terminal devices according to the second resource allocation information and/or the second transmission parameter information. .

In the embodiment of the present invention, optionally, the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information.

In the embodiment of the present invention, the sending module 11 is further configured to: send, to the at least two terminal devices, a second trigger frame, where the second trigger frame carries the second resource allocation information and/or the second Transfer parameter information.

In the embodiment of the present invention, optionally, the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame.

In the embodiment of the present invention, optionally, the second trigger frame further carries the session identifier information.

In the embodiment of the present invention, the receiving module 12 is further configured to: receive an ADDBA response sent by each of the at least two terminal devices by using one of the subchannels orthogonal to the OFDMA form. frame.

In the embodiment of the present invention, the sending module 11 is further configured to send a multi-user acknowledgment frame to the at least two terminal devices, where the multi-user acknowledgment frame bearer is used to indicate that the at least two terminal devices are successfully sent. The indication of the ADDBA response frame.

It should be understood that the network device 10 in accordance with an embodiment of the present invention may correspond to the method 100 of performing a block acknowledgment communication mechanism in an embodiment of the present invention, and that the above and other operations and/or functions of the various modules in the network device 10 are respectively The corresponding processes of the various methods in FIG. 1 to FIG. 4 are implemented, and are not described herein for brevity.

Therefore, the network device in the embodiment of the present invention sends an ADDBA request frame carrying ADDBA request information corresponding to all terminal devices to multiple terminal devices, thereby establishing a BA communication mechanism between the network device and multiple terminal devices. A separate process is implemented through a process, which can effectively reduce signaling overhead and improve channel utilization.

A terminal device according to an embodiment of the present invention will be described in detail below with reference to FIG. 29, as shown in FIG. The terminal device 20 includes:

The receiving module 21 is configured to receive an ADDBA request frame that is sent by the network device, where the ADDBA request frame is sent by the network device to the at least two terminal devices, where the ADDBA request frame carries the at least two terminal devices. Corresponding ADDBA request information;

The sending module 22 is configured to send an ADDBA response frame to the network device.

Therefore, the terminal device in the embodiment of the present invention receives an ADDBA request frame that is sent by the network device to the multiple terminal devices and carries the ADDBA request information corresponding to all the terminal devices, thereby establishing a BA between the network device and the multiple terminal devices. The multiple independent processes of the communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, the receiving module 21 is specifically configured to: receive the ADDBA request frame sent by the network device by multicast or broadcast.

In the embodiment of the present invention, the receiving module 21 is specifically configured to: receive an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU occupies Each subchannel within the system bandwidth carries ADDBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, block confirmation BA parameter set information, BA timeout time information, and BA initial serial number control information.

In the embodiment of the present invention, the sending module 22 is further configured to: send, according to the first resource indication information and/or the first transmission parameter information, an acknowledgement frame that confirms that the ADDBA request frame is successfully received to the network device.

In the embodiment of the present invention, optionally, the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information.

In the embodiment of the present invention, the receiving module 21 is further configured to: receive a first trigger frame sent by the network device, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information.

In the embodiment of the present invention, the sending module 22 is specifically configured to: send the ADDBA response frame to the network device according to the second resource allocation information and/or the second transmission parameter information.

In the embodiment of the present invention, optionally, the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information.

In the embodiment of the present invention, the receiving module 21 is further configured to: receive a second trigger frame sent by the network device, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information.

In the embodiment of the present invention, optionally, the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame.

In the embodiment of the present invention, optionally, the second trigger frame further carries the session identifier information.

In the embodiment of the present invention, the sending module 22 is further configured to: send the ADDBA response frame to the network device by using one of the subchannels orthogonal to the OFDMA format.

In the embodiment of the present invention, the receiving module 21 is further configured to: receive a multi-user acknowledgment frame sent by the network device, where the multi-user acknowledgment frame bearer is used to indicate that the network device successfully receives the at least two terminal devices. The indication of the sent ADDBA response frame.

It should be understood that the terminal device 20 according to an embodiment of the present invention may correspond to the method 300 of performing a block acknowledgment communication mechanism in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the terminal device 20 are respectively The corresponding processes of the various methods in FIG. 6 to FIG. 8 are implemented, and are not described herein for brevity.

Therefore, the terminal device in the embodiment of the present invention receives an ADDBA request frame that is sent by the network device to the multiple terminal devices and carries the ADDBA request information corresponding to all the terminal devices, thereby establishing a BA between the network device and the multiple terminal devices. The multiple independent processes of the communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

A network device according to another embodiment of the present invention is described in detail below with reference to FIG. 30. As shown in FIG. 23, the network device 30 includes:

The receiving module 31 is configured to receive an ADDBA request frame for establishing a block acknowledgement communication mechanism sent by each terminal device of the at least two terminal devices;

The sending module 32 is configured to send an ADDBA response frame to the at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

Therefore, after receiving the ADDBA request frame sent by the multiple terminal devices, the network device of the embodiment of the present invention sends an ADDBA response frame carrying the ADDBA response information corresponding to the multiple terminal devices to the multiple terminal devices. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, optionally, each of the at least two terminal devices sends The ADDBA request frame also carries a buffer status report BSR corresponding to the terminal device.

In the embodiment of the present invention, the sending module 32 is specifically configured to: send an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU to the at least two terminal devices, where the OFDMA PPDU occupies within the system bandwidth Each subchannel carries ADDBA response information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, the receiving module 31 is further configured to: receive, by each terminal device, the acknowledgment sent by each terminal device according to the resource allocation information and/or the transmission parameter information to successfully receive the ADDBA response frame. Confirmation frame.

In the embodiment of the present invention, optionally, the ADDBA response frame carries the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, the sending module 32 is further configured to: send a trigger frame to the at least two terminal devices, where the trigger frame includes the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, optionally, the ADDBA response information corresponding to each of the at least two terminal devices in the ADDBA response information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information.

It should be understood that network device 30 in accordance with an embodiment of the present invention may correspond to performing method 400 of establishing a block acknowledgment transmission mechanism in an embodiment of the present invention, and that the above and other operations and/or functions of respective modules in network device 30 are respectively The corresponding processes of the various methods in FIG. 9 and FIG. 10 are implemented, and are not described herein for brevity.

A terminal device according to another embodiment of the present invention will be described in detail below with reference to FIG. 31. As shown in FIG. 24, the terminal device 40 includes:

The sending module 41 is configured to send, to the network device, a setup block acknowledgement communication mechanism ADDBA request frame.

The receiving module 42 is configured to receive an ADDBA response frame sent by the network device, where the ADDBA response frame is sent by the network device to at least two terminal devices, where the ADDBA response frame carries an ADDBA response corresponding to the at least two terminal devices. information.

Therefore, after transmitting the ADDBA request frame to the network device, the terminal device of the embodiment of the present invention receives an ADDBA response frame that is sent by the network device to the multiple terminal devices and carries the ADDBA response information corresponding to the multiple terminal devices. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the plurality of terminal devices can be implemented through one process, which can be effective. Reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, optionally, the ADDBA request frame further carries a buffer status report BSR.

In the embodiment of the present invention, the receiving module 42 is specifically configured to: receive an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU occupies Each subchannel within the system bandwidth carries ADDBA response information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, the sending module 41 is further configured to send, to the network device, an acknowledgement frame that confirms that the ADDBA response frame is successfully received according to the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, optionally, the ADDBA response frame carries the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, the receiving module 42 is further configured to: receive a trigger frame sent by the network device, where the trigger frame includes the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, optionally, the ADDBA response information corresponding to each of the at least two terminal devices in the ADDBA response information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information.

It should be understood that the terminal device 40 according to an embodiment of the present invention may correspond to the method 500 of performing a block acknowledgment communication mechanism in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the terminal device 40 are respectively The corresponding processes of the respective methods in FIG. 12 and FIG. 13 are implemented, and are not described herein again for the sake of brevity.

Therefore, after transmitting the ADDBA request frame to the network device, the terminal device of the embodiment of the present invention receives an ADDBA response frame that is sent by the network device to the multiple terminal devices and carries the ADDBA response information corresponding to the multiple terminal devices. Therefore, multiple independent processes for establishing a BA communication mechanism between the network device and the multiple terminal devices can be implemented through one process, which can effectively reduce signaling overhead and improve channel utilization.

A network device according to still another embodiment of the present invention will be described in detail below with reference to FIG. 32. As shown in FIG. 25, the network device 50 includes:

The receiving module 51 is configured to receive a request frame sent by the terminal device, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism;

The sending module 52 is configured to send, to the terminal device, an acknowledgement frame that confirms that the request frame is successfully received.

Therefore, the terminal device in the embodiment of the present invention transmits the request information for requesting to establish the BA communication mechanism and the buffer status report BSR to the network device in the same request frame, thereby saving signaling overhead in the communication process.

In the embodiment of the present invention, optionally, the request information includes at least one of the following information: session identification information, BA parameter set information, BA timeout time information, and BA initial sequence number control information.

In the embodiment of the present invention, optionally, the request frame is a quality of service QoS data frame or a QoS blank frame.

It should be understood that network device 50 in accordance with an embodiment of the present invention may correspond to performing method 600 of establishing a block acknowledgment communication mechanism in an embodiment of the present invention, and that the above and other operations and/or functions of respective modules in network device 50 are respectively The corresponding processes of the various methods in FIG. 14 are implemented, and are not described herein for brevity.

A terminal device according to still another embodiment of the present invention will be described in detail below with reference to FIG. 33. As shown in FIG. 25, the terminal device 60 includes:

a generating module 61, configured to generate a request frame, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism;

The transceiver module 62 is configured to send the request frame to the network device.

Therefore, the request frame generated by the terminal device in the embodiment of the present invention carries the request information for requesting to establish the BA communication mechanism and the buffer status report BSR, thereby saving signaling overhead in the communication process.

In the embodiment of the present invention, the transceiver module 62 is further configured to: receive an acknowledgement frame sent by the network device to successfully receive the request frame.

In the embodiment of the present invention, optionally, the request information includes at least one of the following information: session identification information, BA parameter set information, BA timeout time information, and BA initial sequence number control information.

In the embodiment of the present invention, optionally, the request frame is a quality of service QoS data frame or a QoS blank frame.

It should be understood that the terminal device 60 according to an embodiment of the present invention may correspond to the method 700 of performing a block acknowledgment communication mechanism in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the terminal device 60 are respectively The corresponding processes of the various methods in FIG. 16 are implemented, and are not described herein for brevity.

Therefore, the request frame generated by the terminal device in the embodiment of the present invention is carried in the request for establishing the BA. The request information of the communication mechanism and the buffer status report BSR, thereby saving signaling overhead in the communication process.

A network device according to still another embodiment of the present invention will be described in detail below with reference to FIG. 34. As shown in FIG. 26, the network device 70 includes:

The sending module 71 is configured to send, to the at least two terminal devices, a teardown block confirmation communication mechanism DELBA request frame, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices;

The receiving module 72 is configured to receive an acknowledgement frame sent by each terminal device of the at least two terminal devices to acknowledge receipt of the DELBA request frame.

Therefore, the network device in the embodiment of the present invention sends a DELBA request frame carrying DELBA request information corresponding to all terminal devices to multiple terminal devices, thereby dismantling the BA communication mechanism between the network device and the plurality of terminal devices. A separate process is implemented through a process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, the sending module 71 is specifically configured to: send an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU to the at least two terminal devices, where the OFDMA PPDU occupies within the system bandwidth Each subchannel carries DELBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the DELBA request information corresponding to each of the at least two terminal devices in the DELBA request information corresponding to the at least two terminal devices includes at least the following information. One type: user identification information, demolition parameter set information, and reason code information.

In the embodiment of the present invention, the receiving and receiving module 72 is specifically configured to: receive, by each terminal device, the DELBA request according to the acknowledgment sent by the resource indication information and/or the transmission parameter information. The confirmation frame of the frame.

In the embodiment of the present invention, optionally, the DELBA request frame further carries the resource indication information and/or the transmission parameter information.

In the embodiment of the present invention, the sending module 71 is further configured to: send a trigger frame to the at least two terminal devices, where the trigger frame carries the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, the receiving and receiving module 72 is further configured to: receive, by each terminal device in the at least two terminal devices, a confirmation by using one of the subchannels orthogonal to the OFDMA form. An acknowledgement frame for the DELBA request frame is received.

It should be understood that network device 70 in accordance with an embodiment of the present invention may correspond to method 800 of performing a teardown block acknowledgment communication mechanism in an embodiment of the present invention, and that the above and other operations and/or functions of respective modules in network device 70 are respectively Corresponding processes for implementing the various methods in FIG. 17 are omitted for brevity.

Therefore, the network device in the embodiment of the present invention sends a DELBA request frame carrying DELBA request information corresponding to all terminal devices to multiple terminal devices, thereby dismantling the BA communication mechanism between the network device and the plurality of terminal devices. A separate process is implemented through a process, which can effectively reduce signaling overhead and improve channel utilization.

A terminal device according to still another embodiment of the present invention will be described in detail below with reference to FIG. 35. As shown in FIG. 27, the terminal device 80 includes:

The receiving module 81 is configured to receive a demolition block acknowledgment communication mechanism DELBA request frame sent by the network device, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame carries the at least two terminal devices Corresponding DELBA request information;

The sending module 82 is configured to send, to the network device, an acknowledgement frame that acknowledges receipt of the DELBA request frame.

Therefore, the terminal device in the embodiment of the present invention receives a DELBA request frame that the network device sends to the plurality of terminal devices and carries the DELBA request information corresponding to all the terminal devices, thereby disassembling the BA between the network device and the plurality of terminal devices. The multiple independent processes of the communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

In the embodiment of the present invention, the receiving module 82 is specifically configured to: receive an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent by the network device to the at least two terminal devices, where the OFDMA PPDU is occupied. Each subchannel within the system bandwidth carries DELBA request information corresponding to each of the at least two terminal devices.

In the embodiment of the present invention, optionally, the DELBA request information corresponding to one of the at least two terminal devices in the DELBA request information corresponding to all the terminal devices in the at least two terminal devices includes the following information. At least one of: user identification information, teardown parameter set information, reason code information.

In the embodiment of the present invention, the sending module 81 is specifically configured to: send, according to the resource indication information and/or the transmission parameter information, an acknowledgement frame that acknowledges receipt of the DELBA request frame to the network device.

In the embodiment of the present invention, optionally, the DELBA request frame further carries the resource indication information. And/or the transmission parameter information.

In the embodiment of the present invention, the receiving module 82 is further configured to: receive a trigger frame sent by the network device, where the trigger frame carries the resource allocation information and/or the transmission parameter information.

In the embodiment of the present invention, the sending module 81 is specifically configured to: send, by using one of the subchannels orthogonal to the OFDMA form, an acknowledgement frame that acknowledges receipt of the DELBA request frame to the network device.

It should be understood that the terminal device 80 according to an embodiment of the present invention may correspond to the method 1000 of performing the removal block confirmation communication mechanism in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the terminal device 80 are respectively Corresponding processes for implementing the various methods in FIG. 20 are omitted for brevity.

Therefore, the terminal device in the embodiment of the present invention receives a DELBA request frame that the network device sends to the plurality of terminal devices and carries the DELBA request information corresponding to all the terminal devices, thereby disassembling the BA between the network device and the plurality of terminal devices. The multiple independent processes of the communication mechanism are implemented by one process, which can effectively reduce signaling overhead and improve channel utilization.

As shown in FIG. 36, an embodiment of the present invention further provides a network device 100, which includes a processor 101, a memory 102, a receiver 103, a transmitter 104, and a bus system 105. The processor 101, the memory 102, the receiver 103, and the transmitter 104 are connected by a bus system 105 for storing instructions for executing instructions stored in the memory 102 to control reception by the receiver 103. The signal and transmitter 104 send a signal.

It should be understood that, in the embodiment of the present invention, the processor 101 may be a central processing unit ("CPU"), and the processor 101 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 102 can include read only memory and random access memory and provides instructions and data to the processor 101. A portion of the memory 102 may also include a non-volatile random access memory. For example, the memory 102 can also store information of the device type.

The bus system 105 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 105 in the figure.

In the implementation process, each step of the above method may be integrated by hardware in the processor 101. The logic circuit or the instruction in the form of software is completed. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 102, and the processor 101 reads the information in the memory 102 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the transmitter 104 is configured to send, to the at least two terminal devices, a setup block acknowledgement communication mechanism ADDBA request frame, where the ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices;

The receiver 103 is configured to receive an ADDBA response frame sent by each of the at least two terminal devices.

Optionally, as an embodiment, the receiver 103 is configured to receive an establishment block acknowledgement communication mechanism ADDBA request frame sent by each terminal device of the at least two terminal devices;

The transmitter 104 is configured to send an ADDBA response frame to the at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices.

Optionally, as an embodiment, the receiver 103 is configured to receive a request frame sent by the terminal device, where the request frame carries request information and a buffer status report for requesting to establish a block acknowledgement BA communication mechanism;

The transmitter 104 is configured to send an acknowledgement frame to the terminal device confirming that the request frame is successfully received.

Optionally, as an embodiment, the receiver 103 is configured to receive a teardown block acknowledgement communication mechanism DELBA request frame sent by the network device, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame is sent. Carrying DELBA request information corresponding to the at least two terminal devices;

The transmitter 104 is configured to send an acknowledgement frame to the network device confirming receipt of the DELBA request frame.

It should be understood that the network device 100 according to an embodiment of the present invention may correspond to the network devices 10, 30, 50, and 70 in the embodiments of the present invention, and may correspond to corresponding subjects in performing the method according to an embodiment of the present invention, and the network The above and other operations and/or functions of the various modules in the device 100 are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 1 to 4, 9, 10, 14 and 17 for the sake of brevity. Narration.

As shown in FIG. 37, an embodiment of the present invention further provides a terminal device 200, which is a terminal device. 200 includes a processor 201, a memory 202, a transmitter 203, a receiver 204, and a bus system 205. The processor 201, the memory 202, the transmitter 203 and the receiver 204 are connected by a bus system 205 for storing instructions for executing instructions stored in the memory 202 to control the transmitter 203 to transmit. Signal and receiver 204 receive the signal.

It should be understood that, in the embodiment of the present invention, the processor 201 may be a central processing unit ("CPU"), and the processor 201 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 202 can include read only memory and random access memory and provides instructions and data to the processor 201. A portion of the memory 202 can also include a non-volatile random access memory. For example, the memory 202 can also store information of the device type.

The bus system 205 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 205 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 201 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 202, and the processor 201 reads the information in the memory 202 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the receiver 204 is configured to receive a setup block acknowledgement communication mechanism ADDBA request frame sent by the network device, where the ADDBA request frame is sent by the network device to at least two terminal devices, where the ADDBA request frame is sent. Carrying ADDBA request information corresponding to the at least two terminal devices;

The transmitter 203 is configured to send an ADDBA response frame to the network device.

Optionally, as an embodiment, the transmitter 203 is configured to send a setup block acknowledgement communication mechanism ADDBA request frame to the network device.

The receiver 204 is configured to receive an ADDBA response frame sent by the network device, where the ADDBA response frame is sent by the network device to at least two terminal devices, where the ADDBA response frame carries The at least two terminal devices correspond to the ADDBA response information.

Optionally, as an embodiment, the processor 201 is configured to generate a request frame, where the request frame carries request information and a buffer status report for requesting to establish a block acknowledgement BA communication mechanism;

The transmitter 203 is configured to send the request frame to a network device.

Optionally, as an embodiment, the receiver 204 is configured to receive a teardown block acknowledgement communication mechanism DELBA request frame sent by the network device, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame is sent. Carrying DELBA request information corresponding to the at least two terminal devices;

The transmitter 203 is configured to send an acknowledgement frame to the network device confirming receipt of the DELBA request frame.

It should be understood that the terminal device 200 according to an embodiment of the present invention may correspond to the terminal devices 20, 40, 60, and 80 in the embodiment of the present invention, and may correspond to a corresponding body in a method according to an embodiment of the present invention, and the terminal The above and other operations and/or functions of the respective modules in the device 200 are respectively implemented in order to implement the respective processes of the respective methods in FIG. 6 to FIG. 8 , FIG. 13 , FIG. 16 and FIG. 20 , and are not described herein again for brevity.

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the various embodiments of the present invention, it should be understood that the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

Additionally, the terms "system" and "network" are used interchangeably herein. It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined from A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

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

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, 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. In addition, 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 in an electrical, mechanical or other form.

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. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

An integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read-only memory (Read-Only Memory, Jane) A medium that can store program codes, such as "ROM"), random access memory (Random Access Memory, "RAM"), disk, or optical disk.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims (126)

A method for establishing a block acknowledgment communication mechanism, comprising: And sending, to the at least two terminal devices, an establishment block confirmation communication mechanism ADDBA request frame, where the ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices; Receiving an ADDBA response frame sent by each of the at least two terminal devices. The method according to claim 1, wherein the sending the block confirmation communication mechanism ADDBA request frame to the at least two terminal devices comprises: The ADDBA request frame is sent to the at least two terminal devices by multicast or broadcast. The method according to claim 1, wherein the sending the block confirmation communication mechanism ADDBA request frame to the at least two terminal devices comprises: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The ADDBA request information corresponding to the device. The method according to claim 1, wherein the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices comprises: At least one of the following information: user identification information, session identification information, block confirmation BA parameter set information, BA timeout information, and BA initial sequence number control information. The method according to any one of claims 1 to 4, further comprising: Receiving an acknowledgement frame that the terminal device of each of the at least two terminal devices successfully receives the ADDBA request frame according to the acknowledgement sent by the first resource indication information and/or the first transmission parameter information. The method according to claim 5, wherein the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information. The method of claim 5, wherein the method further comprises: Sending, to the at least two terminal devices, a first trigger frame, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information. The method according to any one of claims 1 to 4, wherein the receiving an ADDBA response frame sent by each of the at least two terminal devices comprises: Receiving, by each of the at least two terminal devices, according to the second resource allocation information and/or Or an ADDBA response frame sent by the second transmission parameter information. The method according to claim 8, wherein the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information. The method of claim 8 further comprising: Sending, to the at least two terminal devices, a second trigger frame, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information. The method according to claim 10, wherein the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame. The method according to claim 10, wherein the second trigger frame further carries the session identification information. The method according to any one of claims 1 to 4, wherein the receiving an ADDBA response frame sent by each of the at least two terminal devices comprises: An ADDBA response frame transmitted by each of the at least two terminal devices through one of the subchannels orthogonal in the form of OFDMA is received. The method according to any one of claims 1 to 4, further comprising: Sending a multi-user acknowledgment frame to the at least two terminal devices, where the multi-user acknowledgment frame carries indication information indicating that the ADDBA response frame sent by the at least two terminal devices is successfully received. A method for establishing a block acknowledgment communication mechanism, comprising: Receiving, by the network device, a setup block acknowledgement communication mechanism ADDBA request frame, where the ADDBA request frame is sent by the network device to at least two terminal devices, where the ADDBA request frame carries corresponding to the at least two terminal devices ADDBA request information; Sending an ADDBA response frame to the network device. The method according to claim 15, wherein the establishing a block acknowledgement communication mechanism ADDBA request frame sent by the receiving network device comprises: Receiving the ADDBA request frame sent by the network device by multicast or broadcast. The method according to claim 15, wherein the establishing a block acknowledgement communication mechanism ADDBA request frame sent by the receiving network device comprises: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU sent to the at least two terminal devices, where the OFDMA PPDU occupies within a system bandwidth Each subchannel carries ADDBA request information corresponding to each of the at least two terminal devices. The method according to claim 15, wherein the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices comprises: At least one of the following information: user identification information, session identification information, block confirmation BA parameter set information, BA timeout information, and BA initial sequence number control information. The method according to any one of claims 15 to 18, wherein the method further comprises: Sending an acknowledgement frame confirming successful reception of the ADDBA request frame to the network device according to the first resource indication information and/or the first transmission parameter information. The method according to claim 19, wherein the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information. The method of claim 19, wherein the method further comprises: And receiving, by the network device, a first trigger frame, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information. The method according to any one of claims 15 to 18, wherein the sending an ADDBA response frame to the network device comprises: And sending the ADDBA response frame to the network device according to the second resource allocation information and/or the second transmission parameter information. The method according to claim 22, wherein the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information. The method of claim 22, wherein the method further comprises: And receiving, by the network device, a second trigger frame, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information. The method according to claim 24, wherein the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame. The method according to claim 24, wherein the second trigger frame further carries the session identification information. Method according to any one of claims 15 to 18, wherein said The network device sends an ADDBA response frame, including: The ADDBA response frame is transmitted to the network device by one of the subchannels orthogonal in the form of OFDMA. The method according to any one of claims 15 to 18, wherein the method further comprises: Receiving a multi-user acknowledgment frame sent by the network device, where the multi-user acknowledgment frame bearer is used to indicate that the network device successfully receives the indication information of the ADDBA response frame sent by the at least two terminal devices. A method for establishing a block acknowledgment communication mechanism, comprising: Receiving an establishment block acknowledgement communication mechanism ADDBA request frame sent by each of the at least two terminal devices; Sending an ADDBA response frame to the at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices. The method according to claim 29, wherein the ADDBA request frame sent by each of the at least two terminal devices further carries a buffer status report BSR corresponding to the terminal device. The method according to claim 29, wherein the sending the ADDBA response frame to the at least two terminal devices comprises: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The ADDBA response information corresponding to the device. The method according to any one of claims 29 to 31, wherein the method further comprises: Receiving an acknowledgement frame that the terminal device of each of the at least two terminal devices successfully receives the ADDBA response frame according to the acknowledgment sent by the resource allocation information and/or the transmission parameter information. The method according to claim 32, wherein the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. The method of claim 32, wherein the method further comprises: Transmitting a trigger frame to the at least two terminal devices, where the trigger frame includes the resource allocation information and/or the transmission parameter information. A method according to any one of claims 29 to 31, wherein said The ADDBA response information corresponding to each of the at least two terminal devices in the ADDBA response information corresponding to the at least two terminal devices includes at least one of the following information: user identification information, session identification information, Status code information, BA parameter set information, and BA timeout information. A method for establishing a block acknowledgment communication mechanism, comprising: Sending a block acknowledgement communication mechanism ADDBA request frame to the network device; Receiving an ADDBA response frame sent by the network device, where the ADDBA response frame is sent by the network device to at least two terminal devices, where the ADDBA response frame carries an ADDBA response message corresponding to the at least two terminal devices. . The method of claim 36, wherein the ADDBA request frame further carries a buffer status report BSR. The method according to claim 36, wherein the receiving the ADDBA response frame sent by the network device comprises: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA PPDU) transmitted to the at least two terminal devices, where each of the sub-channels occupied by the OFDMA PPDU carries the at least two ADDBA response information corresponding to each terminal device in the terminal device. The method according to any one of claims 36 to 38, wherein the method further comprises: Sending an acknowledgement frame confirming successful reception of the ADDBA response frame to the network device according to the resource allocation information and/or the transmission parameter information. The method of claim 39, wherein the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. The method of claim 39, wherein the method further comprises: Receiving a trigger frame sent by the network device, where the trigger frame includes the resource allocation information and/or the transmission parameter information. The method according to any one of claims 36 to 38, wherein the ADDBA response information corresponding to the at least two terminal devices is associated with each of the at least two terminal devices The corresponding ADDBA response information includes at least one of the following information: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information. A method for establishing a block acknowledgment communication mechanism, comprising: Receiving a request frame sent by the terminal device, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; Sending an acknowledgement frame confirming successful reception of the request frame to the terminal device. The method according to claim 43, wherein the request information comprises at least one of the following: session identification information, BA parameter set information, BA timeout information, and BA initial sequence number control information. The method according to claim 43 or 44, wherein the request frame is a quality of service QoS data frame or a QoS blank frame. A method for establishing a block acknowledgment communication mechanism, comprising: Generating a request frame, the request frame carrying request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; The request frame is sent to the network device. The method of claim 46, wherein the method further comprises: Receiving an acknowledgement frame sent by the network device to successfully receive the request frame. The method according to claim 46 or 47, wherein the request information comprises at least one of the following information: session identification information, BA parameter set information, BA timeout information, and BA initial sequence number control information. The method according to claim 46 or 47, wherein the request frame is a quality of service QoS data frame or a QoS blank frame. A method for removing a block confirmation communication mechanism, comprising: Sending, by the at least two terminal devices, a teardown block confirmation communication mechanism DELBA request frame, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices; Receiving an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame. The method according to claim 50, wherein the sending the demolition block acknowledgment communication mechanism DELBA request frame to the at least two terminal devices comprises: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The DELBA request information corresponding to the device. The method of claim 50, wherein said at least two The DELBA request information corresponding to each of the at least two terminal devices in the DELBA request information corresponding to the terminal device includes at least one of the following information: user identification information, teardown parameter set information, and reason code information. The method according to any one of claims 50 to 52, wherein the receiving an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame comprises: Receiving an acknowledgement frame of the DELBA request frame by each of the at least two terminal devices according to the acknowledgment sent by the resource indication information and/or the transmission parameter information. The method according to claim 53, wherein the DELBA request frame further carries the resource indication information and/or the transmission parameter information. The method of claim 53, wherein the method further comprises: Sending a trigger frame to the at least two terminal devices, where the trigger frame carries the resource allocation information and/or the transmission parameter information. The method according to any one of claims 50 to 52, wherein the receiving an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame comprises: Receiving, by each of the at least two terminal devices, an acknowledgement frame of the DELBA request frame is received by an acknowledgment sent by one of the subchannels orthogonal to the OFDMA form. A method for removing a block confirmation communication mechanism, comprising: Receiving, by the network device, a teardown block confirmation communication mechanism DELBA request frame, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame carries a corresponding to the at least two terminal devices DELBA request information; An acknowledgement frame confirming receipt of the DELBA request frame is sent to the network device. The method according to claim 57, wherein the receiving the network device sends a teardown block confirmation communication mechanism DELBA request frame, including: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA PPDU) transmitted to the at least two terminal devices, where each of the sub-channels occupied by the OFDMA PPDU carries the at least two DELBA request information corresponding to each terminal device in the terminal device. The method according to claim 57, wherein said DELBA request information corresponding to all of said at least two terminal devices is associated with said at least two terminals The DELBA request information corresponding to one terminal device in the device includes at least one of the following information: user identification information, teardown parameter set information, and reason code information. The method according to any one of claims 57 to 59, wherein the sending, to the network device, an acknowledgement frame confirming receipt of the DELBA request frame comprises: Sending an acknowledgement frame confirming receipt of the DELBA request frame to the network device according to the resource indication information and/or the transmission parameter information. The method according to claim 60, wherein the DELBA request frame further carries the resource indication information and/or the transmission parameter information. The method of claim 60, wherein the method further comprises: Receiving a trigger frame sent by the network device, where the trigger frame carries the resource allocation information and/or the transmission parameter information. The method according to any one of claims 57 to 59, wherein the sending, to the network device, an acknowledgement frame confirming receipt of the DELBA request frame comprises: An acknowledgment frame that acknowledges receipt of the DELBA request frame is transmitted to the network device by one of the subchannels orthogonal in the form of OFDMA. A network device, comprising: a sending module, configured to send, to the at least two terminal devices, a setup block acknowledgement communication mechanism ADDBA request frame, where the ADDBA request frame carries ADDBA request information corresponding to the at least two terminal devices; And a receiving module, configured to receive an ADDBA response frame sent by each of the at least two terminal devices. The network device according to claim 64, wherein the sending module is specifically configured to: The ADDBA request frame is sent to the at least two terminal devices by multicast or broadcast. The network device according to claim 64, wherein the sending module is specifically configured to: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The ADDBA request information corresponding to the device. A network device according to claim 64, wherein said at least said The ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the two terminal devices includes at least one of the following information: user identification information, session identification information, and block confirmation BA. Parameter set information, BA timeout information, and BA initial sequence number control information. The network device according to any one of claims 64 to 67, wherein the receiving module is further configured to: Receiving an acknowledgement frame that the terminal device of each of the at least two terminal devices successfully receives the ADDBA request frame according to the acknowledgement sent by the first resource indication information and/or the first transmission parameter information. The network device according to claim 68, wherein the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information. The network device according to claim 68, wherein the sending module is further configured to: Sending, to the at least two terminal devices, a first trigger frame, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information. The network device according to any one of claims 64 to 67, wherein the receiving module is specifically configured to: Receiving an ADDBA response frame sent by each of the at least two terminal devices according to the second resource allocation information and/or the second transmission parameter information. The network device according to claim 71, wherein the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information. The network device according to claim 71, wherein the sending module is further configured to: Sending, to the at least two terminal devices, a second trigger frame, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information. The network device according to claim 73, wherein the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame. The network device according to claim 73, wherein the second trigger frame further carries the session identification information. The network device according to any one of claims 64 to 67, wherein the receiving module is further configured to: An ADDBA response frame transmitted by each of the at least two terminal devices through one of the subchannels orthogonal in the form of OFDMA is received. The network device according to any one of claims 64 to 67, wherein the sending module is further configured to: Sending a multi-user acknowledgment frame to the at least two terminal devices, where the multi-user acknowledgment frame carries indication information indicating that the ADDBA response frame sent by the at least two terminal devices is successfully received. A terminal device, comprising: a receiving module, configured to receive a setup block acknowledgement communication mechanism ADDBA request frame sent by the network device, where the ADDBA request frame is sent by the network device to at least two terminal devices, where the ADDBA request frame carries the at least two ADDBA request information corresponding to the terminal device; And a sending module, configured to send an ADDBA response frame to the network device. The terminal device according to claim 78, wherein the receiving module is specifically configured to: Receiving the ADDBA request frame sent by the network device by multicast or broadcast. The terminal device according to claim 78, wherein the receiving module is specifically configured to: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA PPDU) transmitted to the at least two terminal devices, where each of the sub-channels occupied by the OFDMA PPDU carries the at least two ADDBA request information corresponding to each terminal device in the terminal device. The terminal device according to claim 78, wherein the ADDBA request information corresponding to each of the at least two terminal devices in the ADDBA request information corresponding to the at least two terminal devices At least one of the following information is included: user identification information, session identification information, block acknowledgement BA parameter set information, BA timeout information, and BA initial sequence number control information. The terminal device according to any one of claims 78 to 81, wherein the transmitting module is further configured to: Sending an acknowledgement frame confirming successful reception of the ADDBA request frame to the network device according to the first resource indication information and/or the first transmission parameter information. The terminal device according to claim 82, wherein the ADDBA request frame further carries the first resource indication information and/or the first transmission parameter information. The terminal device according to claim 82, wherein the receiving module is further configured to: And receiving, by the network device, a first trigger frame, where the first trigger frame carries the first resource allocation information and/or the first transmission parameter information. The terminal device according to any one of claims 78 to 81, wherein the sending module is specifically configured to: And sending the ADDBA response frame to the network device according to the second resource allocation information and/or the second transmission parameter information. The terminal device according to claim 85, wherein the ADDBA request frame further carries the second resource allocation information and/or the second transmission parameter information. The terminal device according to claim 85, wherein the receiving module is further configured to: And receiving, by the network device, a second trigger frame, where the second trigger frame carries the second resource allocation information and/or the second transmission parameter information. The terminal device according to claim 87, wherein the second trigger frame further carries indication information indicating that each of the at least two terminal devices sends an ADDBA response frame. The terminal device according to claim 87, wherein the second trigger frame further carries the session identification information. The terminal device according to any one of claims 78 to 81, wherein the sending module is further configured to: The ADDBA response frame is transmitted to the network device by one of the subchannels orthogonal in the form of OFDMA. The terminal device according to any one of claims 78 to 81, wherein the receiving module is further configured to: Receiving a multi-user acknowledgment frame sent by the network device, where the multi-user acknowledgment frame bearer is used to indicate that the network device successfully receives the indication information of the ADDBA response frame sent by the at least two terminal devices. A network device, comprising: a receiving module, configured to receive an ADDBA request frame for establishing a block acknowledgement communication mechanism sent by each terminal device of the at least two terminal devices; And a sending module, configured to send an ADDBA response frame to the at least two terminal devices, where the ADDBA response frame carries ADDBA response information corresponding to the at least two terminal devices. The network device according to claim 92, wherein the ADDBA request frame sent by each of the at least two terminal devices further carries a buffer status report BSR corresponding to the terminal device. The network device according to claim 92, wherein the sending module is specifically configured to: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The ADDBA response information corresponding to the device. The network device according to any one of claims 92 to 94, wherein the receiving module is further configured to: Receiving an acknowledgement frame that the terminal device of each of the at least two terminal devices successfully receives the ADDBA response frame according to the acknowledgment sent by the resource allocation information and/or the transmission parameter information. The network device according to claim 95, wherein the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. The network device according to claim 95, wherein the sending module is further configured to: Transmitting a trigger frame to the at least two terminal devices, where the trigger frame includes the resource allocation information and/or the transmission parameter information. The network device according to any one of claims 92 to 94, wherein the ADDBA response information corresponding to the at least two terminal devices and each of the at least two terminal devices The corresponding ADDBA response information includes at least one of the following information: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information. A terminal device, comprising: a sending module, configured to send, to the network device, an ADDBA request frame for establishing a block acknowledgement communication mechanism; a receiving module, configured to receive an ADDBA response frame sent by the network device, where the ADDBA response frame is sent by the network device to at least two terminal devices, where the ADDBA response frame carries the at least two terminal devices Corresponding ADDBA response information. The terminal device according to claim 99, wherein said ADDBA is requested The frame request also carries a buffer status report BSR. The terminal device according to claim 99, wherein the receiving module is specifically configured to: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA PPDU) transmitted to the at least two terminal devices, where each of the sub-channels occupied by the OFDMA PPDU carries the at least two ADDBA response information corresponding to each terminal device in the terminal device. The terminal device according to any one of claims 99 to 101, wherein the sending module is further configured to: Sending an acknowledgement frame confirming successful reception of the ADDBA response frame to the network device according to the resource allocation information and/or the transmission parameter information. The terminal device according to claim 102, wherein the ADDBA response frame carries the resource allocation information and/or the transmission parameter information. The terminal device according to claim 102, wherein the receiving module is further configured to: Receiving a trigger frame sent by the network device, where the trigger frame includes the resource allocation information and/or the transmission parameter information. The terminal device according to any one of claims 99 to 101, wherein the ADDBA response information corresponding to the at least two terminal devices and each of the at least two terminal devices The corresponding ADDBA response information includes at least one of the following information: user identification information, session identification information, status code information, BA parameter set information, and BA timeout information. A network device, comprising: a receiving module, configured to receive a request frame sent by the terminal device, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; And a sending module, configured to send, to the terminal device, an acknowledgement frame that confirms that the request frame is successfully received. The network device according to claim 106, wherein the request information comprises at least one of the following: session identification information, BA parameter set information, BA timeout information, and BA initial sequence number control information. The network device method according to claim 106 or 107, wherein the request frame is a quality of service QoS data frame or a QoS blank frame. A terminal device, comprising: a generating module, configured to generate a request frame, where the request frame carries request information and a buffer status report BSR for requesting to establish a block acknowledgement BA communication mechanism; And a transceiver module, configured to send the request frame to a network device. The terminal device according to claim 109, wherein the transceiver module is further configured to: Receiving an acknowledgement frame sent by the network device to successfully receive the request frame. The terminal device according to claim 109 or 110, wherein the request information comprises at least one of the following information: session identification information, BA parameter set information, BA timeout time information, and BA initial sequence number control information. The method according to any one of claims 109 or 110, wherein the request frame is a quality of service QoS data frame or a QoS blank frame. A network device, comprising: a sending module, configured to send, by the at least two terminal devices, a teardown block confirmation communication mechanism DELBA request frame, where the DELBA request frame carries DELBA request information corresponding to the at least two terminal devices; And a receiving module, configured to receive an acknowledgement frame sent by each of the at least two terminal devices to acknowledge receipt of the DELBA request frame. The network device according to claim 113, wherein the sending module is specifically configured to: Transmitting, by the at least two terminal devices, an orthogonal frequency division multiple access physical layer protocol data unit OFDMA PPDU, where each subchannel within the system bandwidth occupied by the OFDMA PPDU carries each terminal of the at least two terminal devices The DELBA request information corresponding to the device. The network device according to claim 113, wherein the DELBA request information corresponding to each of the at least two terminal devices in the DELBA request information corresponding to the at least two terminal devices The method includes at least one of the following information: user identification information, teardown parameter set information, and reason code information. The network device according to any one of claims 113 to 115, wherein the receiving and receiving module is specifically configured to: Receiving an acknowledgement frame of the DELBA request frame by each of the at least two terminal devices according to the acknowledgment sent by the resource indication information and/or the transmission parameter information. The network device according to claim 116, wherein the DELBA request frame further carries the resource indication information and/or the transmission parameter information. The network device according to claim 116, wherein the sending module is further configured to: Sending a trigger frame to the at least two terminal devices, where the trigger frame carries the resource allocation information and/or the transmission parameter information. The network device according to any one of claims 113 to 115, wherein the receiving and receiving module is further configured to: Receiving, by each of the at least two terminal devices, an acknowledgement frame of the DELBA request frame is received by an acknowledgment sent by one of the subchannels orthogonal to the OFDMA form. A terminal device, comprising: a receiving module, configured to receive a teardown block confirmation communication mechanism DELBA request frame sent by the network device, where the DELBA request frame is sent by the network device to at least two terminal devices, where the DELBA request frame carries the at least two DELBA request information corresponding to the terminal device; And a sending module, configured to send, to the network device, an acknowledgement frame that acknowledges receipt of the DELBA request frame. The terminal device according to claim 120, wherein the receiving module is specifically configured to: Receiving, by the network device, an orthogonal frequency division multiple access physical layer protocol data unit (OFDMA PPDU) transmitted to the at least two terminal devices, where each of the sub-channels occupied by the OFDMA PPDU carries the at least two DELBA request information corresponding to each terminal device in the terminal device. The terminal device according to claim 120, wherein the DELBA request information corresponding to all the terminal devices of the at least two terminal devices corresponds to one of the at least two terminal devices The DELBA request information includes at least one of the following information: user identification information, teardown parameter set information, and reason code information. The terminal device according to any one of claims 120 to 122, wherein the sending module is specifically configured to: Sending an acknowledgement frame confirming receipt of the DELBA request frame to the network device according to the resource indication information and/or the transmission parameter information. A terminal device according to claim 123, wherein said DELBA The request frame also carries the resource indication information and/or the transmission parameter information. The terminal device according to claim 123, wherein the receiving module is further configured to: Receiving a trigger frame sent by the network device, where the trigger frame carries the resource allocation information and/or the transmission parameter information. The terminal device according to any one of claims 120 to 122, wherein the sending module is specifically configured to: An acknowledgment frame that acknowledges receipt of the DELBA request frame is transmitted to the network device by one of the subchannels orthogonal in the form of OFDMA.

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