CN106656429B

CN106656429B - Wireless communication method and apparatus

Info

Publication number: CN106656429B
Application number: CN201510957693.8A
Authority: CN
Inventors: 淦明; 刘乐; 李云波; 林英沛; 林伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-11-03
Filing date: 2015-12-18
Publication date: 2020-06-02
Anticipated expiration: 2035-12-18
Also published as: CN106656429A

Abstract

The embodiment of the invention provides a wireless communication method and equipment. The wireless communication method of the invention comprises the following steps: the method comprises the steps that an access point device sends downlink aggregated data frames of the site devices to a plurality of site devices in the same time slot, at least one downlink aggregated data frame comprises a plurality of communication identifiers, the access point device sends a block acknowledgement request frame according to the downlink aggregated data frame of each site device, and the block acknowledgement request frame is used for indicating each site device to reply the block acknowledgement frame; the block acknowledgement request frame comprises a block acknowledgement request information field of each site device, and the block acknowledgement request information field of at least one site device indicates that the downlink aggregated data frame of the site device has a plurality of communication identifiers, so that the multiple site devices can acknowledge the downlink aggregated data frame (A-MPDU) of multiple communication identifiers communicated by the access point device in the same time period.

Description

Wireless communication method and apparatus

Technical Field

The present invention relates to communications technologies, and in particular, to a wireless communication method and device.

Background

In a Wireless Local Area Network (WLAN) communication standard 802.11ac and an earlier Wireless Fidelity (WiFi) standard, when a Station (STA) or an Access Point (AP) transmits data, an acknowledgement policy for responding to the data is set in a MAC header of the data. And the receiving end receiving the data responds correspondingly according to the confirmation strategy.

In a new generation of WLAN communication standard 802.11ax, Orthogonal Frequency Division Multiple Access (OFDMA) technology is introduced. Multiple stations receive or transmit data on different sub-channels. For downlink data transmission (the AP sends data to the stations), the AP transmits data to multiple stations on different orthogonal subchannels by using the OFDMA technique, and the multiple stations respond to the received data by replying to a Block Acknowledgement (BA) or an Acknowledgement (ACK) through the uplink OFDMA. For uplink data transmission (a station sends data to an AP), the AP first sends a trigger frame, where the trigger frame is used to enable multiple stations to synchronously send data, and after receiving the trigger frame, the multiple stations transmit data to the AP through OFDMA in different orthogonal sub-channels, and when receiving data simultaneously transmitted by the multiple stations, the AP may acknowledge in the form of OFDMA BA or ACK.

The multiple STAs transmit aggregation MAC protocol data units (A-MPDUs) on corresponding sub-channels by using an OFDMA technology, the A-MPDUs are formed by aggregating MAC Service Data Units (MSDUs) or MPDUs formed by adding MAC headers before the aggregation MAC Service data units (A-MSDUs) are encapsulated, the MSDUs or the A-MSDUs contained in the A-MPDUs only correspond to traffic of a communication identifier (TID), and TID values of the MSDUs or the A-MSDUs are located in Quality of Service (QoS) control fields in the MAC headers of the MPDUs. In an Enhanced Distributed Channel Access (EDCA) mechanism, there are 4 Access Categories (ACs), which are respectively Background (BK), Best Effort (BE), Video (VI) and Voice (VO), where each AC includes 2 TID services, that is, 8 TID services in total. The buffering of each station stores limited TID value traffic. In uplink OFMDA data transmission, according to an access category of a transmission opportunity (TXOP) and a TXOP sharing mechanism, a station selects an MSDU of a TID service to encapsulate into an MPDU, and further aggregates the MPDU into an a-MPDU. Fig. 1 is a schematic diagram of uplink OFDMA data transmission, and as shown in fig. 1, a-MPDU transmitted by STA2 needs the longest transmission time, and since data transmitted by multiple stations needs to be aligned in time, other stations need to be aligned by padding (pad) bits to ensure that the data shown in fig. 1 only contains traffic with one TID value.

In the above process, data (a-MPDU) which are communicated by multiple stations and an AP in the same time period only contains one TID service, and therefore, when the time for transmitting data of one TID service is different for each station, padding bits are required to be used to ensure that the data transmitted by the multiple stations are aligned in time, which causes resource waste, however, for the continuous development of the wlan communication standard, in order to better utilize resources, data (a-MPDU) which are communicated by multiple stations and an AP in the same time period need to be allowed to contain multi-TID services, and therefore, an acknowledgement flow and a corresponding frame structure need to be redesigned.

Disclosure of Invention

The embodiment of the invention provides a wireless communication method and device, which are used for realizing a confirmation mechanism that multiple stations and an AP communicate multi-TID data (A-MPDU) in the same time period.

In a first aspect, an embodiment of the present invention provides a wireless communication method, including:

the access point equipment sends downlink aggregated data frames of the site equipment to a plurality of site equipment in the same time slot and different sub-channels, wherein the downlink aggregated data frames of the site equipment comprise acknowledgement strategy information, and the acknowledgement strategy information of the downlink aggregated data frames of the site equipment indicates that the site equipment replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the access point equipment sends a block acknowledgement request frame according to the acknowledgement strategy information of the downlink aggregated data frame of each station equipment, wherein the block acknowledgement request frame is used for indicating the plurality of station equipment to reply the block acknowledgement frame;

wherein the block acknowledgement request frame includes block acknowledgement request information fields of a plurality of site devices, and the block acknowledgement request information field of at least one site device indicates that the downlink aggregated data frame of the site device includes a media access control layer service data unit (MSDU) of a plurality of communication identifiers.

Specifically, the access point device may send a downlink aggregated data frame to multiple site devices by using an OFDMA technique on different subchannels of the same timeslot, where the downlink aggregated data frame of each site device includes acknowledgement policy information, where the acknowledgement policy information of the downlink aggregated data frame of the multiple site devices indicates that the site device replies an acknowledgement frame after receiving a block acknowledgement request frame, the access point device generates a block acknowledgement request frame according to the acknowledgement policy of each downlink aggregated data frame and may send the block acknowledgement request frame to each site device by broadcasting, where the block acknowledgement request frame includes block acknowledgement request information fields of the multiple site devices, where the block acknowledgement request information field of the site device indicates that the downlink aggregated data frame of the site device includes MSDUs of multiple communication identifiers, therefore, the station equipment can correctly reply the block acknowledgement frame according to the receiving state of the MSDU of each communication identifier in the downlink aggregated data frame according to the block acknowledgement request information field, namely, the data acknowledgement of the multi-station equipment and the multi-communication identifier can be correctly completed through the process.

According to the first aspect, in a first possible implementation manner of the first aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, bits in the communication identifier bitmap field correspond to the communication identifiers one to one, a state value of the bit is used to indicate whether the downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used to indicate an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

Specifically, the station device may obtain, according to the block acknowledgement request information field of the station device, which MSDU of the communication identifier or identifiers is included in the downlink aggregated data frame of the station device, and the identifier of the MSDU of the corresponding communication identifier. And then the downlink aggregated data frame is correctly analyzed, and the confirmation of the received data frame is completed.

According to a first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregated data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number, where the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in the downlink aggregated data frame of the station device.

That is, the access point device informs the station device of the sequence number of the first MSDU of each communication identifier in the downlink aggregated data frame of the station device through the start sequence number in the block acknowledgement request information field of the station device of the block acknowledgement request frame, so that the station device can obtain the identifier of the MSDU of the corresponding communication identifier according to the start sequence number, and then completes the acknowledgement of the MSDU of each communication identifier in the received downlink aggregated data frame.

According to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the block acknowledgement request frame further includes a block acknowledgement request control field, where the block acknowledgement request control field includes a total number of communication identifiers field, and the total number of communication identifiers field is used to indicate a total number of communication identifiers of downlink aggregated data frames of each station device.

According to the first aspect, or any one of the foregoing possible implementations of the first aspect, in a fourth possible implementation of the first aspect, the block acknowledgement request control field is further configured to indicate a longest time or a longest length for the triggered multiple station devices to transmit a physical layer convergence procedure protocol data unit PPDU.

According to the first aspect, or any one of the above possible implementations of the first aspect, in a fifth possible implementation of the first aspect, the block acknowledgement request control field further includes a multi-channel identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field, a combination or reserved field of the multi-channel identifier subfield, the compressed bitmap subfield, and the multicast retransmission subfield is used to indicate a type of the block acknowledgement request frame, the type of the block acknowledgement request frame includes a multi-site device multi-channel identifier block acknowledgement request frame, and the multi-site device multi-channel identifier block acknowledgement request frame is used to indicate that a plurality of site devices reply the block acknowledgement frame on different subchannels in the same time slot.

Another implementable manner, according to the first aspect, in a sixth possible implementation manner of the first aspect, the block acknowledgement request information field of the station device includes at least one communication identifier field and a starting sequence control field associated with the communication identifier field, the communication identifier field includes an association identification AID of the station device and a communication identifier, and the starting sequence control field associated with the communication identifier field is used to indicate an identification of MSDU of the communication identifier included in a downlink aggregated data frame of the station device of the AID.

Specifically, the downlink aggregated data frame of the station device may include MSDUs of one or more communication identifiers, and the block acknowledgement request information field of the station device in the block acknowledgement request frame sent by the access point device may include one or more communication identifier fields and a start sequence control field associated with the communication identifier field, that is, in the case of an MSDU of 3 communication identifiers, the block acknowledgement request information field includes 3 communication identifier fields and a start sequence control field associated with the communication identifier field. The site equipment can acquire the communication identifier information of the downlink aggregation equipment and the identification of the MSDU of each communication identifier according to the block acknowledgement request information field, so that the downlink aggregation data frame is correctly analyzed, and the acknowledgement of the received downlink aggregation data frame is completed according to the receiving state.

According to a sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the starting sequence control field associated with the communication identifier field includes a starting sequence number, and the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in a downlink aggregated data frame of the station device of the AID.

That is, the access point device informs the station device of the sequence number of the first MSDU of each communication identifier of the station device, so that the station device can acquire the identification of the MSDU from the sequence number of the first MSDU of each communication identifier.

According to a sixth possible implementation manner of the first aspect or the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the block acknowledgement request frame further includes a block acknowledgement request control field of each station device, where the block acknowledgement request control field of the station device is used to indicate the number of communication identifiers of the station device.

According to a sixth possible implementation manner of the first aspect, or the seventh or eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the block acknowledgement request frame further includes a common information field, and the common information field is used to indicate a total number of communication identifiers of downlink aggregated data frames of each station device.

According to any one of the foregoing possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, the block acknowledgement request frame further includes a trigger information field of each station device, where the trigger information field of the station device includes resource indication information of the station device.

Optionally, the common information field further includes joint resource indication information, where the joint resource indication information is used to indicate resource information of each station device.

According to a tenth possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, the trigger information field of the station device includes any one or a combination of an association identifier AID, a transmission power, a number of spatial streams, a modulation and coding scheme MCS, a coding type, and information indicating whether to use a time-space-time code STBC.

In a second aspect, an embodiment of the present invention provides another wireless communication method, including:

the method comprises the steps that an access point device sends downlink aggregated data frames of the site devices to a plurality of site devices on different sub-channels of the same time slot by utilizing an orthogonal frequency division multiple access technology, the downlink aggregated data frames of the site devices comprise acknowledgement strategy information, and the acknowledgement strategy information of the uplink aggregated data frames of the site devices indicates the site devices to reply block acknowledgement frames after receiving block acknowledgement request frames;

the access point equipment sends block acknowledgement request frames of a plurality of station equipment on different sub-channels in the same time slot by using an orthogonal frequency division multiple access technology according to acknowledgement strategy information of a downlink aggregated data frame of each station equipment, wherein the block acknowledgement request frames are used for indicating the station equipment to reply a block acknowledgement frame and reply channel resource information of the block acknowledgement frame;

the block acknowledgement request frame of the station equipment comprises a block acknowledgement request information field of the station equipment, and the block acknowledgement request information field is used for indicating that the downlink aggregated data frame of the station equipment comprises a media access control layer service data unit (MSDU) of at least one communication identifier.

Specifically, the access point device may transmit the downlink aggregate data frame to the plurality of station devices on different sub-channels of the same time slot by using the OFDMA technique, when the acknowledgement policy information of the plurality of downlink aggregated data frames indicates that the station device replies to the block acknowledgement frame after receiving the block acknowledgement request frame, the access point device needs to send block acknowledgement request frames to multiple station devices in the same time slot and on different sub-channels according to the acknowledgement policy information of each downlink aggregated data frame, so that the station apparatus replies to the block ack frame on the same channel resource as the block ack request frame received by the station apparatus, wherein, the block acknowledgement request frame sent by the access point device can indicate the MSDU of which the downlink aggregated data frame comprises one or more communication identifiers, thereby realizing that the access point device simultaneously triggers the block acknowledgement request to a plurality of station devices, namely, the data confirmation of the multi-site equipment and the multi-communication identifier can be correctly completed through the process.

According to the second aspect, in a first possible implementation manner of the second aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used to indicate whether a downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used to indicate an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

In a second possible implementation manner of the second aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number, where the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

In a third aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that an access point device sends an uplink data trigger frame to at least one station device, wherein the uplink data trigger frame is used for triggering each station device to send uplink aggregate data frames on different subchannels in the same time slot, the uplink aggregate data frame of the at least one station device comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, the uplink aggregate data frame of each station device comprises acknowledgement strategy information, and the acknowledgement strategy information of the uplink aggregate data frames of the plurality of station devices indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the access point equipment generates a block acknowledgement request trigger frame according to acknowledgement strategy information of each uplink aggregation data frame, wherein the block acknowledgement request trigger frame is used for triggering each station equipment to send a block acknowledgement request frame of the station equipment;

the access point equipment sends the block acknowledgement request trigger frame;

the access point equipment receives the block acknowledgement request frame sent by each station equipment on different sub-channels in the same time slot;

and the access point equipment sends a block acknowledgement frame according to the receiving state of the uplink aggregation data frame of each station equipment.

Specifically, for uplink data frames received on different subchannels of the same timeslot, the access point device may trigger the multiple site devices to send the block acknowledgement request frame by using the block acknowledgement request trigger frame, so that the multiple site devices send the block acknowledgement request frames on different subchannels of the same timeslot, and further the access point device confirms the uplink aggregated data frames of the multiple site devices, where the uplink aggregated data frames of the site devices may include MSDUs with multiple communication identifiers, that is, the data confirmation of multiple site devices and multiple communication identifiers may be correctly completed through the above process.

According to the third aspect, in a first possible implementation manner of the third aspect, the block acknowledgement request trigger frame includes an association identifier set field, where the association identifier set field is used to indicate an association identifier of a station device that needs to send the block acknowledgement request frame.

According to the third aspect, in a second possible implementation manner of the third aspect, the block acknowledgement request trigger frame includes a common information field, the common information field includes a trigger frame type, the trigger frame type includes a multi-site device multi-pass identifier block acknowledgement request trigger frame, and the multi-site device multi-pass identifier block acknowledgement request trigger frame is used to instruct multiple site devices to reply with the block acknowledgement frame on different subchannels in the same timeslot.

According to any one of the above possible implementation manners of the third aspect, in a third possible implementation manner of the third aspect, the block acknowledgement frame includes a block acknowledgement information field, the block acknowledgement information field includes block acknowledgement information subfields of multiple station devices, the block acknowledgement information subfields of the station devices include a block acknowledgement indication bitmap field and a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, and the block acknowledgement indication bitmap field and the communication identifier bitmap field are used for indicating that an acknowledgement type of an MSDU of a communication identifier corresponding to the bit is block acknowledgement;

the block acknowledgement information subfield of the station device further includes a block acknowledgement starting sequence control field for indicating that an acknowledgement type of an MSDU of the communication identifier corresponding to the bit is a starting sequence number of the MSDU for block acknowledgement, and a block acknowledgement bitmap field for indicating a reception state of each MSDU of the communication identifier.

In a fourth aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that an access point device sends an uplink data trigger frame to at least one station device, wherein the uplink data trigger frame is used for triggering each station device to send uplink aggregate data frames on different subchannels in the same time slot, the uplink aggregate data frames of the at least one station device comprise media access control layer service data units (MSDUs) with a plurality of communication identifiers, the uplink aggregate data frames of the station devices comprise acknowledgement strategy information, and the acknowledgement strategy information of the at least one station device indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the access point equipment sends a random competition trigger frame, wherein the random competition trigger frame is used for indicating each station equipment to send a service data frame in a backoff competition mode, and the service data frame comprises a block confirmation request frame.

And the access point equipment sends a block acknowledgement frame according to the receiving state of the uplink aggregation data frame of each station equipment and the received service data frame.

Specifically, the access point device may trigger the multiple station devices to send the block acknowledgement request frame through the random contention trigger frame, so that the access point device acknowledges the data at the sending end according to the receiving state of the uplink aggregated data frame of each station device and the received block acknowledgement request frame, that is, the data acknowledgement of the multiple station devices with multiple beacon identifiers may be correctly completed through the above process.

In a fifth aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that an access point device sends an uplink aggregation data trigger frame to at least one site device, wherein the uplink aggregation data trigger frame is used for triggering each site device to send uplink aggregation data frames in different subchannels in the same time slot, the uplink aggregation data frame of the at least one site device comprises a plurality of communication identifiers, the uplink aggregation data frame of each site device comprises acknowledgement strategy information, and the acknowledgement strategy information of the at least one site device indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the access point equipment receives a station sending block acknowledgement request frame;

and the access point equipment replies a block acknowledgement frame according to the block acknowledgement request frame and the receiving state of the uplink aggregated data frame of each station equipment, wherein the block acknowledgement frame comprises the receiving state information of the uplink aggregated data frame of each station equipment.

Namely, the data confirmation of the multi-site equipment and the multi-communication identifier can be correctly completed through the process.

According to a fifth aspect, in a first possible implementation manner of the fifth aspect, the block acknowledgement request frame includes a block acknowledgement request control field, where the block acknowledgement request control field includes a reserved bit field, and the reserved bit field is used to instruct the access point device to reply the block acknowledgement frame according to a reception status of an uplink aggregated data frame of each station device.

In a sixth aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that station equipment receives a downlink aggregation data frame sent by access point equipment, wherein the downlink aggregation data frame comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers;

the station equipment receives a block acknowledgement request frame sent by the access point equipment, wherein the block acknowledgement request frame comprises block acknowledgement request information fields of a plurality of station equipment;

the site equipment acquires a block acknowledgement request information field of the site equipment according to the block acknowledgement request frame;

and the site equipment returns the block acknowledgement frame according to the block acknowledgement request information field of the site equipment and the receiving state of the downlink aggregated data frame.

Specifically, the station device may receive an MSDU including a plurality of communication identifiers, and obtain a block acknowledgement request information field of the station device according to a block acknowledgement request frame sent by the access point device, and the station device may obtain information of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device according to the block acknowledgement request information field, thereby completing acknowledgement of the downlink aggregated data frame correctly.

According to the sixth aspect, in a first possible implementation manner of the sixth aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

the site equipment acquires the MSDU (MSDU) of the communication identifier included in the downlink aggregated data frame of the site equipment according to the state value of each bit in the communication identifier bitmap field;

and the station equipment acquires the identification of the MSDU of the communication identifier included in the downlink aggregation data frame of the station equipment according to the starting sequence control field.

In a second possible implementation manner of the sixth aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregated data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number;

the acquiring, by the station device according to the starting sequence control field, an identifier of an MSDU of a communication identifier included in a downlink aggregated data frame of the station device includes:

the station equipment acquires a sequence number of a first MSDU (maximum data unit) of a communication identifier in a downlink aggregated data frame of the station equipment according to a starting sequence number of the communication identifier included in the downlink aggregated data frame of the station equipment.

According to the sixth aspect, or any one of the foregoing possible implementation manners of the sixth aspect, in a third possible implementation manner of the sixth aspect, the block acknowledgement request frame further includes a block acknowledgement request control field, where the block acknowledgement request control field includes a total number of communication identifiers field, and the station device obtains, according to the total number of communication identifiers field, a total number of communication identifiers of the downlink aggregated data frame of the station device.

According to a third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the method further includes that the station device obtains, according to the block acknowledgement request control field, a longest time or a longest length for the station device to transmit a physical layer convergence procedure protocol data unit PPDU.

In a fifth possible implementation form of the sixth aspect, or any one of the above possible implementation forms of the sixth aspect, the block acknowledgement request control field further includes a multi-pass identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field;

and the station equipment acquires the type of the block acknowledgement request frame according to the combination or reserved field of the multi-channel identifier subfield, the compressed bitmap subfield and the multicast retransmission subfield, wherein the type of the block acknowledgement request frame comprises a multi-channel identifier block acknowledgement request frame of the multi-station equipment.

According to a sixth aspect, in a sixth possible implementation manner of the sixth aspect, the block acknowledgement request information field of the station device includes at least one communication identifier field and a starting sequence control field associated with the communication identifier field, the communication identifier field includes an association identification AID of the station device and a communication identifier, and the station device obtains the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device.

The starting sequence control field associated with the communication identifier field comprises a starting sequence number, and the station device acquires the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device, including:

and the station equipment acquires the sequence number of the first MSDU of the communication identifier included in the communication identifier field in the downlink aggregated data frame of the station equipment according to the communication identifier field and the AID of the station equipment.

In a seventh possible implementation manner of the sixth aspect, the block acknowledgement request frame further includes a public information field, and the method further includes:

and the site equipment acquires the total number of the communication identifiers of the downlink aggregated data frame of the site equipment according to the public information field.

According to the sixth aspect, or any one of the foregoing possible implementation manners of the sixth aspect, in an eighth possible implementation manner of the sixth aspect, the block acknowledgement request frame further includes a trigger information field of each station device, and the station device acquires the resource indication information of the station device according to the trigger information field of each station device.

In a ninth possible implementation manner of the sixth aspect, the trigger information field of the station device includes any one or a combination of an association identifier AID, transmission power, the number of spatial streams, a modulation and coding scheme MCS, a coding type, and information indicating whether to use a time-space-time code STBC of the station device.

In a seventh aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that station equipment receives a downlink aggregated data frame sent by access point equipment, wherein the downlink aggregated data frame comprises confirmation strategy information;

after receiving a block acknowledgement request frame sent by the access point device according to the acknowledgement policy information, the station device obtains a media access control layer service data unit (MSDU) of a communication identifier included in a downlink aggregated data frame of the station device according to a block acknowledgement request information field of the station device of the block acknowledgement request frame, and replies the block acknowledgement frame on a channel resource according to a receiving state of the MSDU of the communication identifier included in the downlink aggregated data frame;

the channel resource is the same as the channel resource of the downlink aggregated data frame sent by the access point device and received by the station device.

According to the seventh aspect, in a first possible implementation manner of the seventh aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

the site equipment acquires whether a downlink aggregated data frame of the site equipment comprises the MSDU of the communication identifier corresponding to the bit according to the state value of each bit in the communication identifier bitmap field;

According to the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the start sequence control field includes a start sequence control field of a communication identifier included in a downlink aggregated data frame of the station device, and the start sequence control field of the communication identifier includes a start sequence number;

the station equipment acquires a sequence number of a first MSDU of the communication identifier according to a starting sequence number of the communication identifier included in a downlink aggregation data frame of the station equipment.

In an eighth aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that site equipment receives an uplink data trigger frame sent by access point equipment;

the station equipment sends an uplink aggregate data frame of the station equipment on a corresponding time slot and a subchannel according to the uplink data trigger frame, wherein the uplink aggregate data frame of the station equipment comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, and the uplink data frame of the station equipment also comprises acknowledgement strategy information, and the acknowledgement strategy information is used for indicating that the access point equipment replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the station equipment receives a block acknowledgement request trigger frame sent by the access point equipment;

and the site equipment sends a block acknowledgement request frame of the site equipment on a corresponding time slot and a sub-channel according to the block acknowledgement request trigger frame, wherein the block acknowledgement request frame is used for indicating the access point equipment to reply the block acknowledgement frame.

Specifically, the station device may send an uplink aggregated data frame including MSDUs with multiple communication identifiers, and send a block acknowledgement request frame on a corresponding time slot and sub-channel according to a block acknowledgement request trigger frame sent by the access point device, so that the access point device acknowledges the received data, that is, correctly completes acknowledgement of the uplink aggregated data frame.

According to an eighth aspect, in a first possible implementation manner of the eighth aspect, the block acknowledgement request trigger frame includes an association identifier set field;

and the site equipment determines whether the site equipment needs to send a block acknowledgement request frame or not according to the association identifier set field and the association identifier of the site equipment.

In a second possible implementation form of the eighth aspect, the block acknowledgement request trigger frame includes a common information field, the common information field includes a trigger frame type, and the trigger frame type includes a multi-site device multi-pass identifier block acknowledgement request trigger frame;

and the site equipment acquires that the site equipment and other site equipment reply a block acknowledgement frame on different sub-channels in the same time slot according to the multi-site equipment multi-communication identifier block acknowledgement request trigger frame.

In a ninth aspect, an embodiment of the present invention provides a wireless communication method, including:

the station equipment receives a random competition trigger frame sent by the access point equipment;

the station equipment sends a confirmation request frame of the station equipment in a backoff competition mode according to the random competition trigger frame;

and the station equipment receives the block acknowledgement frame sent by the access point equipment.

Specifically, the station device may send an uplink aggregated data frame of the MSDU including a plurality of communication identifiers, and send a block acknowledgement request frame in a backoff contention mode according to a random contention trigger frame sent by the access point device, so that the access point device acknowledges the received data, that is, correctly completes acknowledgement of the uplink aggregated data frame.

In a tenth aspect, an embodiment of the present invention provides a wireless communication method, including:

the station equipment sends a block acknowledgement request frame to the access point equipment, wherein the block acknowledgement request frame is used for indicating the access point equipment to reply the block acknowledgement frame according to the receiving state of the uplink aggregated data frame of each station equipment, and the block acknowledgement frame comprises the receiving state information of the uplink aggregated data frame of each station equipment.

Specifically, the station device may send an uplink aggregate data frame including the MSDU with the plurality of communication identifiers, and send a block acknowledgement request frame, so that the access point device acknowledges the uplink aggregate data frames sent by all the station devices, that is, correctly completes acknowledgement of the uplink aggregate data frames.

With reference to the tenth aspect, in a first possible implementation manner of the tenth aspect, the block acknowledgement request frame includes a block acknowledgement request control field, where the block acknowledgement request control field includes a reserved bit field, and the station device instructs, by using the reserved bit field, the access point device to reply the block acknowledgement frame according to a reception state of an uplink aggregated data frame of each station device.

According to any one of the above aspects or any one possible implementation manner of any one of the above aspects, optionally, the block acknowledgement request control field further includes joint resource indication information, where the joint resource indication information is used to indicate resource information of each station device.

Further, the block acknowledgement request control field further includes any one or a combination of a guard interval GI, a bandwidth BW, data of a high efficiency signaling long training field HE-LTF, and resource indication information of uplink OFDMA.

According to any one of the above aspects or any one possible implementation manner of any one of the above aspects, optionally, the common information field further includes joint resource indication information, where the joint resource indication information is used to indicate resource information of each station device.

Further, the common information field further includes any one or a combination of a guard interval GI for uplink transmission, a bandwidth BW, data of a high efficiency signaling long training field HE-LTF, and resource indication information of uplink orthogonal frequency division multiple access OFDMA.

According to any one of the above aspects, or any possible implementation manner of any one of the above aspects, the block acknowledgement frame includes a block acknowledgement information field, the block acknowledgement information field includes a block acknowledgement information subfield of each station device, the block acknowledgement information subfield of the station device includes a block acknowledgement indication bitmap field and a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, and the block acknowledgement indication bitmap field and the communication identifier bitmap field are used for indicating that an acknowledgement type of an MSDU of a communication identifier corresponding to the bit is block acknowledgement or acknowledgement;

if the acknowledgement type of the MSDU of the communication identifier corresponding to the bit is block acknowledgement, the block acknowledgement information subfield of the station device further includes a block acknowledgement starting sequence control field and a block acknowledgement bitmap field, where the block acknowledgement starting sequence control field is used to indicate a starting sequence number of the MSDU of the communication identifier corresponding to the bit, and the block acknowledgement bitmap field is used to indicate a reception state of each MSDU of the communication identifier.

In an eleventh aspect, an embodiment of the present invention provides a wireless communication method, including:

the method comprises the steps that access point equipment sends an uplink data trigger frame to a plurality of station equipment, wherein the uplink data trigger frame is used for triggering each station equipment to send uplink aggregated data frames on different sub-channels in the same time slot;

the access point equipment receives uplink aggregation data frames sent by each station equipment, wherein the uplink aggregation data frame of at least one station equipment comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, the uplink aggregation data frame of each station equipment comprises acknowledgement policy information, and the acknowledgement policy information of the uplink aggregation data frame of the station equipment indicates the access point equipment to reply a block acknowledgement frame;

the access point equipment sends a block acknowledgement frame according to the receiving state of the uplink aggregation data frame of each station equipment;

the block acknowledgement frame comprises a block acknowledgement information field, the block acknowledgement information field comprises block acknowledgement information subfields of each station device, the block acknowledgement information subfields of the station devices comprise a block acknowledgement indication bitmap field and a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, and the block acknowledgement indication bitmap field and the communication identifier bitmap field are used for indicating that the acknowledgement type of the MSDU of the communication identifier corresponding to the bit is block acknowledgement or acknowledgement;

In a twelfth aspect, an embodiment of the present invention provides an access point device, including:

a sending module, configured to send downlink aggregated data frames of the site devices to multiple site devices in the same timeslot and on different subchannels, where the downlink aggregated data frames of each site device include acknowledgement policy information, and the acknowledgement policy information of the downlink aggregated data frames of the multiple site devices indicates that the site device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the processing module is used for sending a block acknowledgement request frame through the sending module according to the acknowledgement strategy information of the downlink aggregated data frame of each site device, wherein the block acknowledgement request frame is used for indicating the plurality of site devices to reply the block acknowledgement frame;

According to a twelfth aspect, in a first possible implementation manner of the twelfth aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used to indicate whether the downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used to indicate an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

In a second possible implementation manner of the twelfth aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number, where the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

According to a twelfth aspect, or any possible implementation manner of the twelfth aspect, in a third possible implementation manner of the twelfth aspect, the block acknowledgement request frame further includes a block acknowledgement request control field, and the block acknowledgement request control field includes a total number of communication identifiers field, and the total number of communication identifiers field is used to indicate a total number of communication identifiers of downlink aggregated data frames of each station device.

According to a twelfth aspect, or any one of the above possible implementations of the twelfth aspect, in a fourth possible implementation of the twelfth aspect, the block acknowledgement request control field is further configured to indicate a longest time or a longest length for the triggered multiple station devices to transmit a physical layer convergence procedure protocol data unit PPDU.

In a fifth possible implementation form of the twelfth aspect, or any one of the possible implementation forms of the twelfth aspect, the block acknowledgment request control field further includes a multi-channel identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field, a combination of the multi-channel identifier subfield, the compressed bitmap subfield, and the multicast retransmission subfield, or the reserved field, is used to indicate a type of the block acknowledgment request frame, the type of the block acknowledgment request frame includes a multi-site device multi-channel identifier block acknowledgment request frame, and the multi-site device multi-channel identifier block acknowledgment request frame is used to indicate that a plurality of site devices reply with a block acknowledgment frame on different sub-channels of a same timeslot.

Another implementable manner, according to the twelfth aspect, in a sixth possible implementation manner of the twelfth aspect, the block acknowledgement request information field of the station device includes at least one communication identifier field and a starting sequence control field associated with the communication identifier field, the communication identifier field includes an association identification AID of the station device and a communication identifier, and the starting sequence control field associated with the communication identifier field is used to indicate an identification of MSDU of the communication identifier included in a downlink aggregated data frame of the station device of the AID.

In a seventh possible implementation manner of the twelfth aspect, the starting sequence control field associated with the communication identifier field includes a starting sequence number, and the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in a downlink aggregated data frame of the station device of the AID.

According to a sixth possible implementation manner of the twelfth aspect or the seventh possible implementation manner of the twelfth aspect, in an eighth possible implementation manner of the twelfth aspect, the block acknowledgement request frame further includes a block acknowledgement request control field of each station device, where the block acknowledgement request control field of the station device is used to indicate the number of communication identifiers of the station device.

According to a sixth possible implementation manner of the twelfth aspect, or the seventh or eighth possible implementation manner of the twelfth aspect, in a ninth possible implementation manner of the twelfth aspect, the block acknowledgement request frame further includes a common information field, and the common information field is used to indicate a total number of communication identifiers of downlink aggregated data frames of each station device.

According to any one of the above possible implementation manners of the twelfth aspect, in a tenth possible implementation manner of the twelfth aspect, the common information field further includes joint resource indication information, and the joint resource indication information is used to indicate resource information of each station device.

According to any one of the above possible implementation manners of the twelfth aspect, in an eleventh possible implementation manner of the twelfth aspect, the block acknowledgement request frame further includes a trigger information field of each station device, and the trigger information field of the station device includes resource indication information of the station device.

According to any one of the above possible implementation manners of the twelfth aspect, in a twelfth possible implementation manner of the twelfth aspect, the trigger information field of the station device includes any one or a combination of an association identifier AID, a transmission power, a number of spatial streams, a modulation and coding strategy MCS, a coding type, and information indicating whether to use a time division space-time code STBC.

In a thirteenth aspect, an embodiment of the present invention provides an access point device, including:

a sending module, configured to send a downlink aggregated data frame of the site device to at least one site device by using an ofdma technique in the same timeslot and on different subchannels, where the downlink aggregated data frame of each site device includes acknowledgement policy information, and the acknowledgement policy information of the uplink aggregated data frames of the multiple site devices indicates that the site device replies a block acknowledgement frame after receiving the block acknowledgement request frame;

a processing module, configured to send block acknowledgement request frames of multiple station devices on different subchannels of the same time slot through a sending module according to acknowledgement policy information of a downlink aggregated data frame of each station device by using an orthogonal frequency division multiple access technique, where the block acknowledgement request frame is used to indicate that the station device replies with a block acknowledgement frame and channel resource information of the block acknowledgement frame;

According to a thirteenth aspect, in a first possible implementation manner of the thirteenth aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used to indicate whether a downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used to indicate an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

In a second possible implementation manner of the thirteenth aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number, where the starting sequence number is used to indicate a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

In a fourteenth aspect, an embodiment of the present invention provides an access point device, including:

a sending module, configured to send an uplink data trigger frame to at least one station device, where the uplink data trigger frame is used to trigger each station device to send an uplink aggregated data frame on different subchannels in the same time slot;

a receiving module, configured to receive an uplink aggregated data frame sent by each station device, where the uplink aggregated data frame of at least one station device includes a media access control layer service data unit MSDU with multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of the uplink aggregated data frames of multiple station devices indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the processing module is used for generating a block acknowledgement request trigger frame according to the acknowledgement strategy information of each uplink aggregated data frame, wherein the block acknowledgement request trigger frame is used for triggering each site device to send the block acknowledgement request frame of the site device;

the sending module is further configured to send the block acknowledgement request trigger frame;

the receiving module is further configured to receive a block acknowledgement request frame sent by each site device on different subchannels in the same timeslot;

the processing module is further configured to send a block acknowledgement frame by using the sending module according to the receiving state of the uplink aggregated data frame of each station device.

According to a fourteenth aspect, in a first possible implementation manner of the fourteenth aspect, the block acknowledgement request trigger frame includes an association identifier set field, where the association identifier set field is used to indicate an association identifier of a station device that needs to send the block acknowledgement request frame.

According to a fourteenth aspect, in a third possible implementation manner of the fourteenth aspect, the block acknowledgement request trigger frame includes a common information field, the common information field includes a trigger frame type, the trigger frame type includes a multi-site device multi-pass identifier block acknowledgement request trigger frame, and the multi-site device multi-pass identifier block acknowledgement request trigger frame is used to instruct multiple site devices to reply with the block acknowledgement frame on different subchannels in the same timeslot.

In a second possible implementation manner of the fourteenth aspect, the block acknowledgement frame includes a block acknowledgement information field, where the block acknowledgement information field includes block acknowledgement information subfields of multiple station devices, and the block acknowledgement information subfields of the station devices include a block acknowledgement indication bitmap field and a communication identifier bitmap field, where each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, and the block acknowledgement indication bitmap field and the communication identifier bitmap field are used to indicate that an acknowledgement type of a communication identifier corresponding to the MSDU is block acknowledgement or acknowledgement;

In a fifteenth aspect, an embodiment of the present invention provides an access point device, including:

a receiving module, configured to receive an uplink aggregated data frame sent by each station device, where the uplink aggregated data frame of at least one station device includes a media access control layer service data unit MSDU with multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of at least one station device indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the sending module is further configured to send a random contention trigger frame, where the random contention trigger frame is used to instruct each station device to send a service data frame in a backoff contention mode, where the service data frame includes a block acknowledgement request frame;

and the processing module sends a block acknowledgement frame through the sending module according to the receiving state of the uplink aggregation data frame of each station device and the received service data frame.

In a sixteenth aspect, an embodiment of the present invention provides an access point device, including:

a sending module, configured to send an uplink data trigger frame to at least one station device, where the uplink data trigger frame is used to trigger each station device to send an uplink aggregated data frame in the same time slot and on different subchannels;

a receiving module, configured to receive an uplink aggregated data frame sent by each station device, where the uplink aggregated data frame of at least one station device includes multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of at least one station device indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the receiving module is further configured to receive a block acknowledgement request frame sent by a station;

and the processing module is used for replying the block acknowledgement frame through the sending module according to the block acknowledgement request frame and the receiving state of the uplink aggregated data frame of each site device, wherein the block acknowledgement frame comprises the receiving state information of the uplink aggregated data frame of each site device.

According to a sixteenth aspect, in a first possible implementation manner of the sixteenth aspect, the block acknowledgement request frame includes a block acknowledgement request control field, where the block acknowledgement request control field includes a reserved bit field, and the reserved bit field is used to instruct the access point device to reply the block acknowledgement frame according to a reception status of an uplink aggregated data frame of each station device.

In a seventeenth aspect, an embodiment of the present invention provides a station apparatus, including:

a receiving module, configured to receive a downlink aggregated data frame sent by an access point device, where the downlink aggregated data frame includes a media access control layer service data unit MSDU with multiple communication identifiers;

the receiving module is further configured to receive a block acknowledgement request frame sent by the access point device, where the block acknowledgement request frame includes block acknowledgement request information fields of multiple site devices;

the processing module is used for acquiring a block acknowledgement request information field of the site equipment according to the block acknowledgement request frame;

the processing module is further configured to reply a block acknowledgement frame through the sending module according to the block acknowledgement request information field of the site device and the receiving state of the downlink aggregated data frame.

According to a seventeenth aspect, in a first possible implementation manner of the seventeenth aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

the processing module is further configured to obtain, according to the state value of each bit in the communication identifier bitmap field, an MSDU of a communication identifier included in the downlink aggregated data frame of the station device;

and acquiring the identification of the MSDU of the communication identifier included in the downlink aggregation data frame of the station equipment according to the starting sequence control field.

In a second possible implementation manner of the seventeenth aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregated data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number;

the processing module is configured to obtain, according to the starting sequence control field, an identifier of an MSDU of a communication identifier included in a downlink aggregated data frame of the station device, where the identifier includes:

the processing module is configured to obtain, according to a starting sequence number of a communication identifier included in the downlink aggregated data frame of the site device, a sequence number of a first MSDU of the communication identifier in the downlink aggregated data frame of the site device.

According to the seventeenth aspect or any one of the above possible implementation manners of the seventeenth aspect, in a third possible implementation manner of the seventeenth aspect, the block acknowledgement request frame further includes a block acknowledgement request control field, the block acknowledgement request control field includes a total number of communication identifiers field, and the processing module is further configured to obtain, according to the total number of communication identifiers field, a total number of communication identifiers of the downlink aggregated data frame of the station device.

According to a third possible implementation manner of the seventeenth aspect, in a fourth possible implementation manner of the seventeenth aspect, the processing module is further configured to obtain, according to the block acknowledgement request control field, a longest time or a longest length for the station device to transmit a physical layer convergence procedure protocol data unit PPDU.

In a fifth possible implementation form of the seventeenth aspect, according to the seventeenth aspect or any one of the above possible implementation forms of the seventeenth aspect, the block acknowledgement request control field further includes a multiple access identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field;

the processing module is further configured to obtain a type of the block acknowledgement request frame according to a combination or reserved field of the multi-channel identifier subfield, the compressed bitmap subfield, and the multicast retransmission subfield, where the type of the block acknowledgement request frame includes a multi-channel identifier block acknowledgement request frame of a multi-site device.

In a sixteenth possible implementation manner of the seventeenth aspect, the block acknowledgement request information field of the station device includes at least one communication identifier field and a starting sequence control field associated with the communication identifier field, where the communication identifier field includes an association identification AID of the station device and a communication identifier, and the processing module is further configured to obtain the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device.

In a seventh possible implementation manner of the seventeenth aspect, the starting sequence control field associated with the communication identifier field includes a starting sequence number, and the processing module is configured to acquire the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device, and includes:

the processing module is configured to obtain, according to the communication identifier field and the AID of the station device, a sequence number of a first MSDU of a communication identifier included in the communication identifier field in a downlink aggregated data frame of the station device.

According to the seventeenth aspect or any one of the above possible implementation manners of the seventeenth aspect, in an eighth possible implementation manner of the seventeenth aspect, the block acknowledgement request frame further includes a public information field, and the processing module is further configured to obtain a total number of communication identifiers of the downlink aggregated data frame of the station device according to the public information field.

According to a seventh possible implementation manner of the seventeenth aspect, in a ninth possible implementation manner of the seventeenth aspect, the block acknowledgement request frame further includes a trigger information field of each station device, and the processing module is further configured to obtain resource indication information of the station device according to the trigger information field of each station device.

According to a seventh possible implementation manner of the seventeenth aspect, in a tenth possible implementation manner of the seventeenth aspect, the trigger information field of the station device includes any one or a combination of an association identifier AID, a transmission power, a number of spatial streams, a modulation and coding scheme MCS, a coding type, and information indicating whether to use a time division space-time code STBC.

In an eighteenth aspect, an embodiment of the present invention further provides a station device, including:

a receiving module, configured to receive a downlink aggregated data frame sent by an access point device, where the downlink aggregated data frame includes acknowledgement policy information;

a processing module, configured to, after receiving, by a receiving module, a block acknowledgement request frame sent by the access point device according to the acknowledgement policy information, obtain, according to a block acknowledgement request information field of the station device of the block acknowledgement request frame, a media access control layer service data unit MSDU of a communication identifier included in a downlink aggregated data frame of the station device, and reply, by the sending module, the block acknowledgement frame on a channel resource according to a receiving state of the MSDU of the communication identifier included in the downlink aggregated data frame;

According to an eighteenth aspect, in a first possible implementation manner of the eighteenth aspect, the block acknowledgement request information field of the station device includes a communication identifier field and a starting sequence control field, the communication identifier field includes a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

the processing module is further configured to obtain, according to the state value of each bit in the communication identifier bitmap field, whether a downlink aggregated data frame of the site device includes an MSDU of a communication identifier corresponding to the bit;

In a second possible implementation manner of the eighteenth aspect, the starting sequence control field includes a starting sequence control field of a communication identifier included in a downlink aggregated data frame of the station device, and the starting sequence control field of the communication identifier includes a starting sequence number;

and acquiring the sequence number of the first MSDU of the communication identifier according to the starting sequence number of the communication identifier included in the downlink aggregation data frame of the station equipment.

In a nineteenth aspect, an embodiment of the present invention further provides a station device, including:

a receiving module, configured to receive an uplink data trigger frame sent by an access point device;

a processing module, configured to send an uplink aggregate data frame of the site device through a sending module at a corresponding time slot and a corresponding sub-channel according to the uplink data trigger frame, where the uplink aggregate data frame of the site device includes a media access control layer service data unit MSDU with multiple communication identifiers, and the uplink data frame of the site device further includes acknowledgement policy information, where the acknowledgement policy information is used to instruct the access point device to reply a block acknowledgement frame after receiving a block acknowledgement request frame;

the receiving module is further configured to receive a block acknowledgement request trigger frame sent by the access point device;

the processing module is further configured to send a block acknowledgement request frame of the station device through the sending module in a corresponding time slot and sub-channel according to the block acknowledgement request trigger frame, where the block acknowledgement request frame is used to instruct the access point device to reply the block acknowledgement frame.

In a first possible implementation form of the nineteenth aspect, the block acknowledgement request trigger frame includes an association identifier set field;

the processing module is further configured to determine whether the site device needs to send a block acknowledgement request frame according to the association identifier set field and the association identifier of the site device.

In a second possible implementation form of the nineteenth aspect, the block acknowledgement request trigger frame includes a common information field, the common information field includes a trigger frame type, and the trigger frame type includes a multi-site device multi-communication identifier block acknowledgement request trigger frame;

the processing module is further configured to learn, according to the multi-channel identifier block acknowledgement request trigger frame of the multi-site device, that the site device and other site devices reply a block acknowledgement frame through the sending module on different subchannels in the same time slot.

In a twentieth aspect, an embodiment of the present invention further provides a station apparatus, including:

the receiving module is further configured to receive a random contention trigger frame sent by the access point device;

the processing module is further configured to send a confirmation request frame of the station device through a sending module in a backoff contention mode according to the random contention trigger frame;

the receiving module is further configured to receive a block acknowledgement frame sent by the access point device.

In a twenty-first aspect, an embodiment of the present invention further provides a station device, including:

a sending module, configured to send a block acknowledgement request frame to the access point device, where the block acknowledgement request frame is used to instruct the access point device to reply a block acknowledgement frame according to a reception state of an uplink aggregated data frame of each station device, and the block acknowledgement frame includes reception state information of the uplink aggregated data frame of each station device.

With reference to the twenty-first aspect, in a first possible implementation manner of the twenty-first aspect, the block acknowledgement request frame includes a block acknowledgement request control field, where the block acknowledgement request control field includes a reserved bit field, and the processing module is further configured to instruct, by using the reserved bit field, the access point device to reply the block acknowledgement frame according to a reception status of an uplink aggregated data frame of each station device.

In a twenty-second aspect, an embodiment of the present invention further provides an access point device, including:

a sending module, configured to send an uplink data trigger frame to multiple site devices, where the uplink data trigger frame is used to trigger each site device to send an uplink aggregated data frame on different subchannels in the same time slot;

a receiving module, configured to receive an uplink aggregated data frame sent by each station device, where the uplink aggregated data frame of at least one station device includes a media access control layer service data unit MSDU with multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of the uplink aggregated data frame of the station device indicates that the access point device replies a block acknowledgement frame;

the processing module is used for sending a block acknowledgement frame through the sending module according to the receiving state of the uplink aggregation data frame of each station device;

According to the wireless communication method and the wireless communication equipment, downlink aggregated data frames of the site equipment are sent to a plurality of site equipment through access point equipment on different subchannels in the same time slot, at least one downlink aggregated data frame comprises a plurality of communication identifiers, the access point equipment sends a block acknowledgement request frame according to the downlink aggregated data frame of each site equipment, and the block acknowledgement request frame is used for indicating each site equipment to reply the block acknowledgement frame; the block acknowledgement request frame comprises a block acknowledgement request information field of each station device, and the block acknowledgement request information field of at least one station device indicates that a downlink aggregated data frame of the station device comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, so that the access point device can acknowledge the downlink aggregated data frame (A-MPDU) with multiple communication identifiers, which is communicated by the access point device in the same time period, in the same time period.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a diagram illustrating uplink OFDMA data transmission;

FIG. 2 is a schematic diagram of an application scenario according to various embodiments of the present invention;

fig. 3 is a diagram illustrating a first embodiment of a communication method in a wireless local area network according to the present invention;

fig. 4 is a diagram illustrating a second communication method in a wireless lan according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an MU-Multi-TID BAR frame structure according to the present invention;

FIG. 6 is a diagram illustrating the structure of the communication identifier field according to the present invention;

FIG. 7 is a block diagram of an initial sequence control field according to the present invention;

FIG. 8 is a diagram illustrating the structure of the control field of the start sequence of a TID according to the present invention;

FIG. 9 is a schematic diagram of a BAR control field in the MU-Multi-TID BAR frame according to the present invention;

FIG. 10 is a schematic diagram of another MU-Multi-TID BAR frame structure according to the present invention;

FIG. 11 is a diagram illustrating the structure of the BAR information field according to the present invention;

FIG. 12 is a diagram illustrating the structure of information field of a TID according to the present invention;

fig. 13 is a diagram illustrating a third embodiment of a communication method in a wireless lan according to the present invention;

fig. 14 is a diagram illustrating a fourth embodiment of a communication method in a wireless lan according to the present invention;

FIG. 15 is a signaling flow diagram of a wireless communication method of the present invention;

fig. 16 is a diagram illustrating a fifth embodiment of a communication method in a wireless lan according to the present invention;

FIG. 17 is a schematic diagram of a MU-Multi-TID BAR poll frame according to the present invention;

fig. 18 is a diagram illustrating a sixth exemplary communication method in a wireless lan according to the present invention;

fig. 19 is a diagram illustrating a seventh exemplary communication method in a wireless lan according to the present invention;

FIG. 20 is another signaling flow diagram of a wireless communication method of the present invention;

FIG. 21 is a diagram of a Multi-TID M-BA frame structure according to the present invention;

fig. 22 is a schematic structural diagram of a first embodiment of an ap device according to the present invention;

fig. 23 is a schematic structural diagram of a station apparatus according to a first embodiment of the present invention.

FIG. 24 is a diagram of an OFDMA Multi-TID M-BA frame structure according to the present invention.

Fig. 25 is another schematic diagram of a Multi-TID M-BA frame structure according to the present invention.

FIG. 26 is a diagram of an OFDMA Multi-TID BAR frame structure according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 2 is a schematic view of an application scenario according to each embodiment of the present invention, and as shown in fig. 2, the application scenario according to each embodiment of the present invention may include a plurality of APs and a plurality of STAs, where one AP may establish a wireless connection with the plurality of STAs, and the AP may access a network, and specifically, the STAs may be terminal devices such as a mobile phone and a tablet computer. The method related to each embodiment of the invention is an acknowledgement mechanism in the data transmission process of the STA and the AP.

The block acknowledgement request frame in the claims and the summary of the invention is an MU-Multi-TID BAR frame or a BAR frame in the following embodiments. The block acknowledgement frame in the claims and the summary of the invention is a Multi-TID BA frame or a Multi-site Multi-TID block acknowledgement frame (Multi-TID M-BA frame) in the following embodiments. The block ack request trigger frame in the claims and summary of the invention is an MU-Multi-TID BAR Poll frame in the following embodiments. It should be further noted that MSDUs included in the downlink or uplink aggregated data frame in the present invention may be replaced by aggregated MSDUs (a-MSDUs), MSDU fragmentation or aggregated MSDU fragmentation (a-MSDU fragmentation), which may all implement the data acknowledgement mechanism by using the method of the embodiment of the present invention.

Fig. 3 is a schematic diagram of a first embodiment of a communication method in a wireless local area network according to the present invention, and as shown in fig. 3, the schematic diagram of the present embodiment is specifically transmission of a downlink aggregate data frame, and specifically, an AP sends the downlink aggregate data frame to 4 STAs on different subchannels of the same timeslot through an OFDMA technique, for example, the AP may transmit the downlink aggregate data frame to an STA1 through a channel 1, transmit the downlink aggregate data frame to an STA2 through a channel 2, transmit the downlink aggregate data frame to an STA3 through a channel 3, and transmit the downlink aggregate data frame to an STA4 through a channel 4, where acknowledgement policies of the downlink aggregate data frame to each STA may be different or the same, and the downlink aggregate data frame to each STA may be a single TID or a multiple TID.

Specifically, the Acknowledgement Policy in response to the downlink aggregate data frame is set in the Acknowledgement Policy (ACK Policy) subfield of bits 5 to 6 (bits are from 0) in the QoS control field (QoS control field) in the MAC header of the downlink aggregate data frame. The acknowledgement policy subfield contains 2 bits, including 4 acknowledgement policies. Specifically, if the transmitted downlink aggregated data frame is an a-MPDU aggregated non-multiple MPDU, the receiving end responds to the ACK or a QoS + CF-ACK frame, and if the transmitted downlink aggregated data frame is an a-MPDU, the receiving end responds to the BA. "10" indicates that the transmitted data does not require acknowledgement. "01" indicates a scheduled ACK under non-explicit ACK or Power-Save Multi-Poll (PSMP for short). "11" indicates BA, and after the receiver receives data, the receiver expects to receive a BA request frame (BAR) or a-MPDU data with an acknowledgement policy of "00" later, except for recording the reception status and not making any immediate response, and then responds to BA.

In this embodiment, the acknowledgement policy of the downlink aggregated data frame sent by the AP to a part of STAs is set to BA "11", and the acknowledgement policy of the downlink aggregated data frame of the part of STAs is set to "00", which is only used for schematically explaining this embodiment, and is not limited thereto. Specifically, the downlink aggregated data frame sent by the AP to STA1 is an a-MPDU with a single TID, the acknowledgement policy is "00", the downlink aggregated data frame sent by the AP to STA2 is an a-MPDU with multiple TIDs, the acknowledgement policy is "00", the downlink aggregated data frame sent by the AP to STA3 is an a-MPDU with multiple TIDs, the acknowledgement policy is "11", the downlink aggregated data frame sent by the AP to STA4 is an a-MPDU with a single TID, and the acknowledgement policy is "11". Then, as shown in fig. 3, after receiving the downlink aggregated data frame sent by the AP, STA1 and STA2 send a BA acknowledgement frame and a Multi-TID BA acknowledgement frame respectively through OFDMA, and at another timeslot, the AP sends an MU-Multi-tidba frame to trigger STA3 and STA4 to send acknowledgement frames, and after receiving the MU-Multi-TID BAR frame, STA3 and STA4 send a Multi-TID BA acknowledgement frame and a BA acknowledgement frame respectively through OFDMA.

Different from the schematic diagram shown in fig. 3, the acknowledgement policies of the downlink aggregated data frames sent by the AP to the STAs are all BA "11", and fig. 4 is a schematic diagram of a second communication method embodiment in the wireless local area network of the present invention, as shown in fig. 4, the AP sends the downlink aggregated data frames to the 4 STAs through the downlink OFDMA, after receiving the downlink aggregated data frames, the 4 STAs do not immediately respond to the acknowledgement frames, but reply the acknowledgement frames after the AP sends MU-Multi-TID BAR frames, where it is assumed that the downlink aggregated data frames received by each STA are aggregated by MPDUs encapsulated by Multi-TID MSDUs, and then the 4 STAs simultaneously feed back Multi-TID BAs through the uplink OFDMA at another time slot.

The specific structure of the MU-Multi-TID BAR of FIGS. 3 and 4 is explained below.

It should be noted that the meaning of "chinese/chinese", "english/english" in the embodiment of the present invention, for example, duration/identity represents duration or identity. The Chinese/English in the embodiment of the invention represents English corresponding to Chinese.

Fig. 5 is a schematic diagram of an MU-Multi-TID BAR frame structure according to the present invention, and as shown in fig. 5, the MU-Multi-TID BAR frame specifically includes a frame control (frame control) field, a Duration/identity (Duration/ID) field, a Receive Address (RA) field, a Transmit Address (TA) field, a BAR control (BAR control) field, a site 1 trigger information (trigger info for STA1) field, a site 1 BAR information (BAR info for STA1) field, … …, a site n trigger information (trigger info for STA) field, a site n BAR information (BAR info for STA) field, and a Frame Check (FCS) field. Wherein, the receiving address RA is a broadcast address.

Further, the BAR information field of each station includes a communication identifier field and a start control sequence field of repeated BAs, the structure of the communication identifier field (TID info) is specifically shown in fig. 6, fig. 6 is a schematic diagram of the structure of the communication identifier field of the present invention, as shown in fig. 6, the communication identifier field includes a TID bitmap (TID bitmap) field, and optionally, a reserved (reserved) field, where, because there are 8 TID value traffics, the TID bitmap (TIDbitmap) field may be designed to be 8 bits, each bit corresponds to one TID value, each bit has two status values, the status value is used to indicate whether the TID of the downstream aggregated data frame includes a communication identifier corresponding to a bit, for example, the first bit corresponds to TID 0, the second bit corresponds to TID1, and in turn, the 8 th bit corresponds to TID 7, if the TID bitmap field is specifically "10100000", it indicates the MSDU containing TID 0 and TID 2 in the downlink aggregated data frame.

Further, the start sequence control field (Starting sequence control) includes start sequence control fields of multiple TIDs, as shown in fig. 7, fig. 7 is a schematic structural diagram of the start sequence control field of the present invention, and specifically, the start sequence control field (Starting sequence control for TID 0) of TID 0, … …, and the start sequence control field (Starting sequence control for TIDn) of TIDn may be included, as further explained in the above example, that is, the TID bitmap (TID bitmap) field in the communication identifier field is "10100000", and then the start sequence control field includes a start sequence control field of TID 0 and a start sequence control field of TID 2. Further, the starting sequence control field of each TID may be as shown in fig. 8, where fig. 8 is a schematic structural diagram of the starting sequence control field of one TID of the present invention, and as shown in fig. 8, the starting sequence control field includes a Reserved (Reserved) field and a starting sequence number (starting sequence number) field, where the starting sequence number indicates a sequence number of an MSDU included in a first MPDU of one TID of the a-MPDUs to be acknowledged.

Further, fig. 9 is a schematic structural diagram of a BAR control field in the MU-Multi-TID BAR frame according to the present invention, and as shown in fig. 9, the BAR control field may include a block acknowledgement/acknowledgement policy bit (BA/ACK policy) field, a Multi-Traffic Identifier bit (Multi-TID) field, a compressed bitmap bit (compressed bitmap) field, a Reserved (Reserved) field, and a Traffic Identifier/number of Traffic identifiers (Traffic Identifier/number of Traffic identifiers, TID/number of TIDs) field.

The Reserved (Reserved) field in the BAR control field, any one or a combination of 1 bit or multiple bits in other reusable fields, may be used to indicate a longest time required by a triggered physical layer convergence protocol data unit (PPDU) for uplink multi-site transmission or a longest length of a PPDU for uplink multi-site transmission, for example, the length of the PPDU is indicated by using 8 bits. Optionally, in the BAR control field, a reserved bit indicated by a 3-bit combination of a Multi-TID field, a compressed bitmap field, and a multicast retransmission field (group _ payload with retries, abbreviated as GCR) may be used to indicate the new BAR frame type, that is, a new BAR frame type is added: and the other way is to indicate the BAR frame type to be a Multi-site Multi-TID BAR frame through a reserved bit in a BAR control field. The station can know the BAR frame type through BAR frame type indication bits (Multi-TID field, combined bits of the compressed bitmap field and the GCR field or reserved bits in the BAR control field), wherein when the BAR frame is indicated to be a Multi-TID BAR frame or a Multi-station Multi-TID BAR, the TID/Num TID field indicates the number of communication identifiers, otherwise indicates the number of communication identifiers, specifically, when there are multiple communication identifiers, the TID/Num TID field indicates the number of communication identifiers, and when there is only one communication identifier, the TID/Num TID field indicates the communication identifier.

Further, the resource allocation method may include centralized resource allocation and distributed resource allocation. The centralized resource allocation specifically refers to performing resource indication on a plurality of stations jointly, and the resource indication information is placed in a public domain, and a specific implementation manner may be that the BAR control field may further include joint resource indication information used for performing resource indication on a plurality of stations jointly, and may optionally include a Guard Interval (GI) of uplink transmission, a Bandwidth (BW), a number of High efficiency signaling long training fields (HE-LTFs), and a HE-LTF type. The distributed resource allocation specifically refers to that a plurality of sites are independently subjected to resource indication, and the resource indication information is respectively placed in each site information, and a specific implementation manner may be that the resource indication information of each site is placed in a trigger information (trigger info for STAn) field of each site.

Further, each station trigger information field may further include one or more of Association Identifier (AID) of the station, transmission power, number of spatial streams, Modulation and Coding Scheme (MCS), coding type, indication of whether to use time division space-time code (STBC) or not, and indication of whether to use beamforming (beamforming) or not.

Fig. 10 is a schematic diagram of another MU-Multi-TID BAR frame structure according to the present invention, and as shown in fig. 10, the MU-Multi-TID BAR frame specifically includes a frame control (frame control) field, a Duration/identity (Duration/ID) field, a Receive Address (RA) field, a Transmit Address (TA) field, a common (common) field, a site 1 trigger information (trigger info for STA1) field, a site 1 BAR control (BAR control for STA1) field, a site 1 BAR information (BAR info for STA1) field, … …, a site n trigger information (trigger info for STA) field, a site n BAR control (BAR control for STA) field, a site n BAR information (BAR info) field, a site n BAR information (BAR for STA) field, and a station frame (sequence) field. Wherein, the receiving address RA is a broadcast address. The common (common) field includes a TID number field to indicate the sum of the TID numbers of all stations.

Wherein, for each station, TID number/TID value field in BAR control field indicates TID number/TID value under the station, BAR information field includes repeated communication identifier information field and start sequence control field occurring due to multiple TIDs, specific BAR information (BAR info) field may be as shown in fig. 11, fig. 11 is a schematic structural diagram of BAR information field of the present invention, as shown in fig. 11, BAR information field includes information (per TID 0info) field of TID 0, start sequence control (starting sequence control for TID1) field of TID 0, information (per TIDn info) field of … …, TIDn, start sequence control (starting sequence control for TIDn) field of TIDn. The information field of each TID may include an AID field, a reserved field, and a TID field of the station, and a specific structure may be as shown in fig. 12, where fig. 12 is a schematic diagram of a structure of an information field of one TID in the present invention.

Further, the resource allocation method may include centralized resource allocation and distributed resource allocation. The centralized resource allocation specifically refers to performing resource indication jointly for multiple stations, where the resource indication information is placed in a public domain, and a specific implementation manner may be that a public (common) information field includes joint resource indication information used for performing resource indication jointly for multiple stations, and optionally may further include a maximum time required by a physical layer convergence protocol data unit (PPDU) for triggered uplink multi-station transmission or a maximum length of a PPDU for uplink multi-station transmission, for example, 8 bits are used to indicate a PPDU length, a Guard Interval (GI) for uplink transmission, a Bandwidth (BW), a number of High efficiency signaling long training fields (HE-LTFs), a HE-LTF type, and the like. The distributed resource allocation specifically refers to that a plurality of sites are independently subjected to resource indication, and the resource indication information is respectively placed in each site information, and a specific implementation manner may be that the resource indication information of each site is placed in a trigger information (trigger info for STAn) field of each site.

It should be noted that two MU-Multi-TID BAR frame structures are specifically shown in the embodiment of the present invention, however, the present invention is not limited thereto, and specifically, according to the two structures of fig. 5 and fig. 10, fields may be recombined to obtain more frame body structures, and the embodiment of the present invention is not described herein.

Fig. 5 and fig. 10 show a multi-site multi-TID BAR frame structure, which may also be degenerated to a single-site multi-TID BAR frame, and the multiple single-site multi-TID BAR frames are simultaneously transmitted through orthogonal sub-channels, so as to achieve a multi-site multi-TID BAR function.

Wherein, OFDMA Multi-TID BAR frame structure is shown in fig. 26, which is a variant of BAR frame transmitted on orthogonal sub-channels in the above mentioned acknowledgement mode (1) to support acknowledgement request for Multi-TID aggregated data frame a-MPDU. The Multi-TID BAR frame structure type may be indicated by a reserved bit in a BAR control field, or may be indicated by a reserved bit indicated by a 3-bit combination of a Multi-TID field (Multi-TID), a compressed bitmap field (compressed bitmap), and a multicast retransmission field (group _ database _ retransmissions, abbreviated as GCR). That is, the present embodiment may add a BAR frame type through the above-mentioned fields. In order to support that an uplink data Frame sent by each user is a Multi-identifier data Frame, the present invention provides an OFDMA Multi-TID block acknowledgement request Frame (OFDMA Multi-TID BAR Frame) structure, as shown in fig. 26, where the OFDMA Multi-TID BAR Frame specifically includes a Frame Control field (Frame Control), a duration/ID field (duration/ID), a receive address field (RA), a transmit address field (TA), a BAR Control field (BAR Control), Per-TID information (Per TID Info, which may also be referred to as Per AID Info) field, a block acknowledgement start sequence Control field, and a Frame check sequence field (FCS, Frame sequence).

Specifically, each TID information (Per TID Info, which may also be referred to as Per AID Info) field includes a TID bitmap field. The TID bitmap field indicates a plurality of TIDs contained in the a-MPDU transmitted by the station, and the specific explanation of the TID bitmap field can be referred to the specific explanation of the TID bitmap field in the above embodiment. For example, in the A-MPDU, the TID bitmap is "1001000". A starting sequence control field (BA starting sequence control) of multiple TIDs followed by a corresponding "1". Wherein each starting sequence control field includes a starting sequence number of the MSDU per TID.

Fig. 13 is a schematic diagram of a third embodiment of a communication method in a wireless local area network according to the present invention, and as shown in fig. 13, the present embodiment is different from the embodiment shown in fig. 3 in that instead of sending MU-Multi-TID BAR frames by an AP, multiple Multi-TID BAR frames are sent by a downlink OFDMA. Specifically, as shown in fig. 13, the AP transmits a downlink aggregated data frame to 4 stations through downlink OFDMA, assuming the same situation as in fig. 3, that is, when the downlink aggregate data frame sent by the AP to STA1 is an a-MPDU with a single TID, the acknowledgement policy is "00", the downlink aggregate data frame sent by the AP to STA2 is an a-MPDU with a multiple TID, the acknowledgement policy is "00", the downlink aggregate data frame sent by the AP to STA3 is an a-MPDU with a multiple TID, the acknowledgement policy is "11", the downlink aggregate data frame sent by the AP to STA4 is an a-MPDU with a single TID, the acknowledgement policy is "11", and STA1 and STA2 receive the downlink aggregate data frame sent by the AP, the BA acknowledgement frame and Multi-TID BA acknowledgement frame are sent separately by OFDMA, in another time slot, the AP sends Multi-TID BAR frame and BAR frame respectively in OFDMA to trigger STA3 and STA4 to send acknowledgement frame, and STA3 and STA4 send Multi-TID BA acknowledgement frame and BA acknowledgement frame respectively in OFDMA after receiving Multi-TID BAR frame and BAR frame. The parameters used by the station STA to reply to the acknowledgement frame (Multi-TID BA acknowledgement frame or BA acknowledgement frame) may be the same as the parameters used by the received Multi-TID BAR or BAR, such as resource indication information, MSC, etc.

Fig. 14 is a diagram illustrating a fourth embodiment of a communication method in a wireless local area network according to the present invention, and as shown in fig. 14, the present embodiment is different from the embodiment shown in fig. 4 in that instead of sending MU-Multi-TID BAR frames by an AP, multiple Multi-TID BAR frames are sent by a downlink OFDMA. Specifically, as shown in fig. 14, the AP sends downlink aggregated data frames to 4 stations through downlink OFDMA, which is the same as the assumption in fig. 4, that is, the acknowledgement policy of each downlink aggregated data frame is BA "11", and each downlink aggregated data frame is formed by aggregating MPDUs encapsulated by MSDUs of multiple TIDs, after receiving a downlink aggregated data frame, 4 STAs do not immediately respond to an acknowledgement frame, and in another timeslot, the AP sends a Multi-TID BAR frame (referring to a single station) through OFDMA to trigger multiple stations to send an acknowledgement frame through OFDMA at the same time. It should be noted that, at this time, the downlink OFDMA Multi-TID BAR frame does not need to carry unicast trigger information, including resource allocation indication information (the resource allocation indication information is used to indicate on which subchannel each of the plurality of stations replies an acknowledgement frame), and which MCS, GI, and coding type parameter the station uses. The parameters used by the station to reply to the ack frame in this embodiment may be the same as the received Multi-TID BAR parameters, for example, if the station 1 receives the Multi-TID BAR addressed to itself on the sub-channel 2, and the Multi-TID BAR uses MCS2, then the station also replies to the Multi-TID BA on the sub-channel 2 and uses MCS 2.

It should be noted that the schemes in fig. 13 and 14 are also applicable to the AP sending a-MPDU with a single TID to all receiving stations, and when the acknowledgement policy is "11", the AP may send a BAR to each station in the OFDMA format, and the station replies to the BA in the OFDMA format with the same parameters.

Fig. 15 is a signaling flowchart of a wireless communication method of the present invention, which is specifically a signaling flowchart of a wireless communication method in a downlink direction in this embodiment, where the signaling flowchart of this embodiment includes an AP and a plurality of STAs, and as shown in fig. 15, the method of this embodiment includes:

s101, the AP sends downlink aggregation data frames to each STA on different sub-channels in the same time slot.

Wherein each downlink aggregate data frame may include MSDUs of a plurality of communication identifiers. Each downlink aggregated data frame also carries acknowledgement policy information.

S102, the STA receiving the downlink aggregated data frame with the confirmation strategy information of '00' replies a Multi-TID BA frame or a BA frame to the AP according to the receiving state of the downlink aggregated data frame.

S103, broadcasting and sending the MU-Multi-TID BAR frame by the AP.

Specifically, the AP generates an MU-Multi-TID BAR frame according to the acknowledgement policy information of each downlink aggregated data frame, and specifically, the AP generates an MU-Multi-TID BAR frame according to a downlink aggregated data frame whose acknowledgement policy information is "11", where a specific structure of the MU-Multi-TID BAR frame may be as shown in fig. 5 or fig. 10, and the MU-Multi-TID BAR frame carries information of an STA that needs to send a BAR and communication identifier information in the downlink aggregated data frame of the STA. And then S104 is performed.

S103', the AP sends Multi-TID BAR frames to the STA on different sub-channels of the same slot using OFDMA.

Specifically, S103 'is another realizable way of S103, and then S104' is performed.

S104, the STA receiving the downlink aggregated data frame with the confirmation strategy information of '11' replies a Multi-TID BA frame or a BA frame to the AP respectively according to the receiving state of the downlink aggregated data frame and the MU-Multi-TID BAR frame.

S104 ', the STA receiving the downlink aggregated data frame with the confirmation strategy information of ' 11 ' replies a Multi-TID BA frame or a BA frame to the AP respectively according to the receiving state of the downlink aggregated data frame and the Multi-TID BAR frame.

In this embodiment, the AP may send a downlink aggregate data frame to multiple STAs on different subchannels of the same timeslot through OFDMA, where the downlink aggregate data frame may include MSDUs of multiple communication identifiers, and the AP may send a MU-Multi-TID BAR frame to the STAs through sending the MU-Multi-TIDBAR frame or separately sending the Multi-TID BAR frame through OFDMA, so that the STAs correctly complete acknowledgement of the received data frame according to the indication of the AP. The above embodiments are all data transmission confirmation mechanisms in the downlink direction, and a data transmission confirmation mechanism in the uplink direction will be specifically explained in the following embodiments.

Fig. 16 is a schematic diagram of a fifth embodiment of a communication method in a wireless local area network according to the present invention, as shown in fig. 16, the schematic diagram of this embodiment is specifically transmission of an uplink Data frame, specifically, an AP triggers a multi-site to transmit an uplink Data frame (Data) in the same timeslot through uplink OFDMA through a Trigger (Trigger) frame, where it is assumed that acknowledgement policies of uplink Data frames (a-MPDUs) transmitted by multiple sites are all set to BA "11", that is, after the AP receives the uplink Data frame transmitted by the multi-site, the AP does not immediately respond to the acknowledgement frame, but replies the BA acknowledgement frame after the site transmits the BAR frame. Each downlink aggregated data frame (A-MPDU) is aggregated by MPDUs packaged by multi-TID MSDUs. It can be understood that, part of the stations may also set the acknowledgement policy of the downlink aggregated data frame (a-MPDU) sent by the station to BA "11", where the acknowledgement policies of the uplink aggregated data frame are all illustrated as BA "11", as shown in fig. 16, when waiting for a station to send a BAR frame, an AP may broadcast and send a MU-Multi-TID BAR frame, where the MU-Multi-TID BAR frame may be used to trigger the Multi-station to send a Multi-TID BAR of each station in the uplink MU-MIMO or uplink OFDMA format in the same timeslot, and after receiving the Multi-TID BAR sent by the Multi-station, the AP sends a Multi-site Multi-TID acknowledgement frame to acknowledge the received OFDMA data, where the OFDMA data includes the uplink data frame of each station.

Further, the MU-Multi-TID BAR poll frame of the present invention may specifically be one of trigger frames, and a frame of a type of MU-Multi-TID BAR poll is added to the trigger frame type. Optionally, corresponding parameters may be simplified for the MU-Multi-TID BAR poll frame, and since the MU-Multi-TID BAR poll triggers a fixed-size Multi-TID BAR type frame, such as PPDU length, HE-LTF number, HE-LTF type, resource allocation indication may all adopt default values, and transmit power, spatial stream number, and coding type in each station information may also adopt default values. Fig. 17 is a schematic structural diagram of an MU-Multi-TIDBAR poll frame according to the present invention, and as shown in fig. 17, the MU-Multi-TIDBAR poll frame includes a frame control (frame control) field, a Duration (Duration) field, a Received Address (RA) field, a Transmitted Address (TA) field, an association identifier set (AID set) field, and a Frame Check Sequence (FCS) field, wherein a subtype of the MU-Multi-TIDBAR poll is added to the frame control field (frame control), or a subtype of the MU-Multi-TIDBAR poll is added to a reserved field or an available field. And the association identifier set (AID set) field contains a plurality of AIDs and is used for indicating which stations send the Multi-TID BAR through OFDMA after receiving the MU-Multi-TID BAR poll frame, and the Multi-TID BAR is transmitted by adopting subchannels with default sizes according to the order of the AIDs.

It should be noted that, the above is only exemplified by that each downlink aggregated data frame (a-MPDU) is aggregated by an MPDU encapsulated by an MSDU of multiple TIDs, which is not limited in the embodiment of the present invention, and specifically, a downlink aggregated data frame (a-MPDU) sent by a part of stations may also be a single TID, and then after the AP sends an MU-Multi-TID BAR poll, a corresponding station replies a BAR with the same timeslot, and another part of stations replies a Multi-TID BAR, and the BAR and the Multi-TID BAR trigger the AP to reply a Multi-site Multi-TID acknowledgement frame.

It should be noted that when all stations send a-MPDU data with a single TID, the AP sends an MU Multi-TID BAR poll (in this case, it may also be referred to as an MU BAR poll), the stations reply a BAR, and the Multi-station BAR triggers the AP to reply a Multi-station acknowledgement frame. In summary, the communication flow designed for MU Multi-TID BAR pol described above also fits for single TID.

Optionally, fig. 18 is a schematic diagram of a sixth embodiment of the communication method in the wireless local area network of the present invention, as shown in fig. 18, the schematic diagram of this embodiment is specifically transmission of an uplink data frame, and different from the embodiment shown in fig. 16, both Multi-TID BARs and BARs in this embodiment may be mixedly transmitted with other uplink data frames or other MAC frames through OFDMA, specifically, an AP may send a trigger frame of random contention, and after receiving the trigger frame of random contention, each station sends corresponding traffic, such as a Multi-TID BAR, an uplink data frame, and a buffer traffic report buffer report, through a backoff contention channel. Further, the AP optionally indicates which services participate in the contention, on which sub-channels the corresponding services are transmitted, etc. in the trigger frame of the random contention.

Optionally, fig. 19 is a schematic diagram of a seventh embodiment of a communication method in a wireless local area network of the present invention, and as shown in fig. 19, the schematic diagram of this embodiment specifically is transmission of an uplink data frame, and unlike the embodiment shown in fig. 16, in this embodiment, one of multiple stations sends a Multi-TID BAR, and the Multi-TID BAR triggers to acknowledge uplink data frames of all stations. Specifically, as shown in fig. 19, each station sends an uplink data frame to the AP in the same timeslot through OFDMA, and then in another timeslot, one of the stations sends a Multi-TID BAR to the AP, where the Multi-TID BAR may indicate that the AP triggers acknowledgement of the uplink data frames of multiple stations, and specifically, the AP may be indicated in the Multi-TID BAR by a specific bit, for example, a reserved bit in a BAR control field in the Multi-TID BAR may indicate that the Multi-TID BAR triggers acknowledgement of the AP on the uplink data frames of multiple stations by using 1 bit or multiple bits. It is understood that other bits may be used to indicate that the Multi-TID BAR is the trigger for the AP to acknowledge the uplink data frames of multiple stations. After receiving the Multi-TID BAR, the AP can confirm the uplink data frame sent by the Multi-site through OFDMA or MU-MIMO.

It should be noted that, in the above embodiments of the present invention, the acknowledgement of the uplink data frame by the AP or the acknowledgement of the downlink aggregated data frame by the STA both refer to a response of the receiving end (AP or STA) to whether the data is correctly received.

It should be noted that, the above is only exemplified by that each uplink aggregated data frame (a-MPDU) is aggregated by MPDUs encapsulated by Multi-TID MSDUs, which is not limited in this embodiment of the present invention, and specifically, an uplink aggregated data frame (a-MPDU) sent by a part of stations may also be a-MPDU data of a single TID, so that a single station sends a Multi-TID BAR to trigger the AP to reply to a Multi-site Multi-TID acknowledgement frame. It should be further noted that when all stations send uplink aggregate data frames (a-MPDUs) that are single TID a-MPDUs, a single station sends a BAR to trigger the AP to reply to a multi-station acknowledgement frame. In summary, the communication flow described above for the Multi-TID BAR design also fits for a single TID.

Fig. 20 is another signaling flowchart of the wireless communication method of the present invention, which is specifically a signaling flowchart of the wireless communication method in the uplink direction in this embodiment, where the signaling flowchart of this embodiment includes an AP and a plurality of STAs, and as shown in fig. 20, the method of this embodiment includes:

s201, the AP broadcasts and sends an uplink data trigger frame.

S202, each STA sends uplink data frames on different sub-channels in the same time slot according to the uplink data trigger frame.

Each upstream data frame includes acknowledgement policy information. This embodiment exemplifies that the policy information is "11".

S203, the AP generates an MU-Multi-TID BAR poll frame according to the strategy information of the uplink data frame.

S204, the AP broadcasts and sends the MU-Multi-TID BAR poll frame.

S205 is executed after S204 is executed.

S204', the AP broadcasts and sends a random competition trigger frame.

Specifically, S204 ' is another realizable way of S204, and S205 ' is executed after S204 ' is executed.

S204', one STA sends a Multi-TID BAR frame to the AP, and the Multi-TID BAR frame is used for indicating the AP to confirm uplink data frames of all STAs.

Specifically, S204 "is another realizable way of S204.

S205, each STA sends a Multi-TID BAR frame to the AP on different sub-channels in the same time slot.

S205', the STA sends the Multi-TID BAR frame to the AP in a contention backoff mode.

S206, the AP acknowledges the uplink data frame transmitted by each STA, and transmits a block acknowledgement frame.

In this embodiment, the STA may send an uplink aggregate data frame to the AP in different subchannels of the same timeslot through OFDMA, where the uplink aggregate data frame may include MSDUs with multiple communication identifiers, and the AP may send a MU-Multi-tidba poll frame or a random contention trigger frame, so that the STA sends a Multi-TID BAR frame, and further correctly completes acknowledgement of the received data frame.

The specific structure of the acknowledgement frame in the above embodiment of the present invention may be a frame structure as shown in the following figure.

Fig. 21 is a schematic diagram of a Multi-TID M-BA frame structure according to the present invention, in order to support that an uplink data frame sent by each user is a Multi-identifier data frame, the present invention provides a Multi-site Multi-TID block acknowledgement frame (Multi-TID M-BA frame) structure, as shown in fig. 21, the Multi-TID M-BA frame specifically includes a frame Control field (Control frame), a duration/ID field (duration/ID), a receive address field (RA), a send address field (TA), a BA Control field (BA Control), a BA/ACK information field (BA/ACK Info), and a frame check sequence field (FCS, frame check sequence).

Specifically, when the AP receives an uplink data frame (an OFDMA data frame or a multi-user MU-MIMO data frame) sent by multiple stations, the AP may acknowledge the uplink data frame sent by the multiple stations, and the following 2 acknowledgement manners specifically exist: (1) OFDMAACK: the AP replies to the acknowledgement frame in OFDMA, i.e., transmits an ACK or BA on each orthogonal subchannel, where ACK is an acknowledgement for a single mpdu (mac protocol data integrity) data frame and BA is an acknowledgement for an a-mpdu (aggregate mpdu) data frame. (2) Multi-TID M-BA: the AP broadcasts the concatenated acknowledgement frames to multiple stations, i.e. a Multi-TIDM-BA frame structure as shown in fig. 21, where the BA control field includes BA/ACK acknowledgement policy (BA/ACK policy), a Multi-TID field is used to indicate whether it is Multi-TID (Multi-TID), a compressed bitmap field is used to indicate whether it is compressed bitmap (compressed bitmap), multicast retransmission (GCR) field, reserved bit (reserved) field, and TID information (TID info) field, where the TID information field is used to indicate how many BA/ACK information exists.

Wherein, the OFDMA Multi-TID BA frame structure is shown in fig. 24, which is a variant of the BA frame transmitted on the orthogonal sub-channel in the above-mentioned acknowledgement manner (1), so as to support acknowledgement for Multi-TID aggregated data frame a-MPDUs. The Multi-TID BA frame structure type may be indicated by a reserved bit in the BA control field, or may be indicated by a reserved bit indicated by a 3-bit combination of a Multi-TID field (Multi-TID), a compressed bitmap field (compressed bitmap), and a multicast retransmission field (group _ payload with retries, abbreviated as GCR). That is, the present embodiment may add a BA frame type through the above-mentioned field. In order to support that an uplink data Frame sent by each user is a Multi-identifier data Frame, the present invention provides an OFDMA Multi-TID block acknowledgement Frame (OFDMA Multi-TID BA Frame) structure, as shown in fig. 24, where the OFDMA Multi-TID BA Frame specifically includes a Frame Control field (Frame Control), a duration/ID field (duration/ID), a receive address field (RA), a transmit address field (TA), a BA Control field (BA Control), a BA/Ack information field (BA/Ack Info), and a Frame check sequence field (FCS, Frame check sequence).

Specifically, the BA/Ack information field may specifically include a Per TID information (Per TID Info, which may also be referred to as Per AID Info) field, a BA/Ack indication bitmap field, and a TID bitmap field, and optionally includes a starting sequence control (starting sequence control) field and a BA bitmap (BA bitmap) field. The TID bitmap field indicates a plurality of TIDs contained in the a-MPDU transmitted by the station, and the specific explanation of the TID bitmap field can be referred to the specific explanation of the TID bitmap field in the above embodiment. Specifically, if the a-MPDU transmitted by the station contains MSDUs of multiple TIDs, the MSDUs of each TID are 2, one is only one MSDU of the TID, which is called a single MSDU for short, and the other is more than one MSDU of the TID, which is called a multiple MSDU for short. The TID bitmap in fig. 19 indicates the TID corresponding to a single MSDU correctly received in the a-MPDU and the TID corresponding to at least one multiple MSDU (or TID corresponding to multiple MSDU) correctly received, for example, there are MSDUs of TID 0 and TID 3 in the a-MPDU, and the TID bitmap is "1001000". For single MSDUs or all correctly received multiple MSDUs reply ACKs, there may be no starting sequence control field (BA starting sequence control) and BA bitmap field (BA bitmap) following, for multiple MSDUs (excluding all correctly received multiple MSDUs) or multiple MSDUs (excluding all correctly received multiple MSDUs) that have at least one MSDU correctly received, the BA may be replied followed by a starting sequence control field (BA starting sequence control) and BA bitmap field (BA bitmap). The BA/ACK indication bitmap field indicates whether the acknowledgement type corresponding to the above single MSDU or multiple MSDUs is ACK or BA. Wherein the starting sequence control field is a sequence number of a first MSDU corresponding to the multiple MSDUs.

The Multi-TID M-BA frame structure type may be indicated by a reserved bit in the BA control field, or may be indicated by a reserved bit indicated by a 3-bit combination of a Multi-TID field (Multi-TID), a compressed bitmap field (compressed bitmap), and a multicast retransmission field (group _ payload with retries, abbreviated as GCR). That is, the present embodiment may add a BA frame type through the above-mentioned field.

Specifically, the BA/ACK information field (BA/ACK Info) may be multiple, and each BA/ACK information corresponds to one station, where the BA/ACK information field may specifically include a Per TID information (Per TID Info, which may also be referred to as Per AIDInfo) field, a BA/ACK indication bitmap field, and a TID bitmap field, and optionally includes a starting sequence control (BA starting sequence control) field and a BA bitmap (BA bitmap) field. The TID bitmap field indicates a plurality of TIDs contained in the a-MPDU transmitted by the station, and the specific explanation of the TID bitmap field can be referred to the specific explanation of the TID bitmap field in the above embodiment. Specifically, if the a-MPDU transmitted by the station contains MSDUs of multiple TIDs, the MSDUs of each TID are 2, one is only one MSDU of the TID, which is called a single MSDU for short, and the other is more than one MSDU of the TID, which is called a multiple MSDU for short. The TID bitmap in fig. 19 indicates the TID corresponding to a single MSDU received correctly and the TID corresponding to at least one multiple MSDU received correctly in this a-MPDU (or TID corresponding to multiple MSDU), for a single MSDU or all multiple MSDUs received correctly an ACK may be replied followed by no start sequence control field (BA starting sequence control) and BA bitmap field (babbitmap), for a multiple MSDU received correctly (not including all multiple MSDUs received correctly) or multiple MSDU (not including all multiple MSDUs received correctly) a BA may be replied, followed by a start sequence control field (BA starting sequence control) and BA bitmap field (BA bitmap). The BA/ACK indication bitmap field indicates whether the acknowledgement type corresponding to the above single MSDU or multiple MSDUs is ACK or BA. Wherein the starting sequence control field is a sequence number of a first MSDU corresponding to the multiple MSDUs.

The other embodiment is specifically as follows: the AP may acknowledge the received uplink Multi-site data using a Multi-site block acknowledgement frame (M-BA) frame, which also includes a frame control field, a duration/ID field, a receive address field, a transmit address field, a BA control field, a BA/ACK information field, and a frame check sequence field. The difference from fig. 21 is 1. each TID information (Per TID Info, which may also be referred to as Per AID Info) field includes AID, BA/ACK indication bit, TID, and so on. 2. The M-BA frame does not include fields such as the BA/ACK indication bit bitmap and the TID bitmap shown in fig. 21. The M-BA does not support the acknowledgement of multi-TID aggregated data frames sent by the station at this time.

The present invention proposes a Multi-TID Multi-site acknowledgement frame (Multi-TID M-BA) as shown in fig. 25 in conjunction with the M-BA frame. The difference from fig. 21 is that at least 1 bit of Per TID Info field indicates whether the aggregate data frame sent by the station to be acknowledged is single TID or multi-TID, if the bit indicates multi-TID, BA/ACK indication bitmap field and TID bitmap field appear after Per TID Info field, and then multiple repeated block acknowledgement starting sequence control field and block acknowledgement bitmap field follow. If the bit indicates single TID, the BA/ACK information field corresponding to the station does not comprise BA/ACK indication bitmap field and TID bitmap field at the moment, and the structure of the BA/ACK info field of the station in the M-BA frame is the same.

An embodiment of whether the aggregate data frame sent by the station to be acknowledged is a single TID or a multi-TID may be indicated by at least 1 bit of Per TID Info field

1. 1 bit in the TID subfield in the Per TID Info field shown in fig. 25.

2. A special TID value of the TID subfield in the Per TID Info field shown in fig. 25. Based on Enhanced Distributed Channel Access (EDCA) technology, the TIDs in the M-BA frames are usually 8, and these 8 TIDs only need to occupy 3 bits, however, 4 bits are allocated to the TID in each communication identifier information, so the TID with the value of 0-7 may indicate a normal TID, and the TID with the value of 8-15 is a special TID, and therefore, whether the aggregated data frame sent by the station with block acknowledgement/confirmation information to be confirmed is a multi-TID may be indicated by the special TID.

The above embodiments are not limited to sending downlink or uplink aggregate data frames on each subchannel, and non-aggregate data frames sent on a part of subchannels may also be used. The names of MU Multi-TID BAR, MU Multi-TID BAR poll frames mentioned in the examples are not limited thereto, but may also be referred to as Multi-STA Multi-TID BAR, Multi-STA Multi-TIDBAR poll frames, respectively, for example.

In addition, the byte number of the newly added field in the multi-site multi-TID BAR frame, the OFDMA multi-TID BAR frame, the multi-site multi-TID TIDBA frame, and the OFDMA multi-TIDBA frame mentioned in the above embodiments may be 1 byte or more.

In addition, the new BA/ACK indication bitmap field and TID bitmap field in the multi-site multi-TID BAR frame, OFDMA multi-TID BAR frame, multi-site multi-TIDBA frame and OFDMA multi-TIDBA frame mentioned in the above embodiments may also be located after the block acknowledgement bitmap field, and the positions of the BA/ACK indication bitmap field and TID bitmap field may be interchanged.

Fig. 22 is a schematic structural diagram of an access point device according to a first embodiment of the present invention, and as shown in fig. 22, the apparatus of this embodiment may include: the system comprises a sending module 11, a processing module 12 and a receiving module 13, wherein the sending module 11 is configured to send downlink aggregated data frames of site devices to multiple site devices on different subchannels in the same time slot, a downlink aggregated data frame of each site device includes acknowledgement policy information, the acknowledgement policy information of the downlink aggregated data frames of the multiple site devices indicates that the site devices reply a block acknowledgement frame after receiving a block acknowledgement request frame, the processing module 12 is configured to send the block acknowledgement request frame through the sending module according to the acknowledgement policy information of the downlink aggregated data frame of each site device, the block acknowledgement request frame is used to indicate that the multiple site devices reply the block acknowledgement frame, and the receiving module 13 is configured to receive the block acknowledgement frame sent by each site device. Wherein the block acknowledgement request frame includes block acknowledgement request information fields of a plurality of site devices, and the block acknowledgement request information field of at least one site device indicates that the downlink aggregated data frame of the site device includes a media access control layer service data unit (MSDU) of a plurality of communication identifiers.

The apparatus of this embodiment may be used in the technical solutions of the above method embodiments, and the implementation principles and technical effects thereof are similar, and are not described herein again.

In another implementation manner, the access point device may employ the same apparatus structure as that in fig. 22, except that the sending module is configured to send, to at least one station device, a downlink aggregated data frame of the station device by using an ofdma technique in different sub-channels of the same time slot, where the downlink aggregated data frame of each station device includes acknowledgement policy information, the acknowledgement policy information of the uplink aggregated data frames of multiple station devices indicates that the station device replies a block acknowledgement frame after receiving the block acknowledgement request frame, and the processing module is configured to send, by using the ofdma technique according to the acknowledgement policy information of the downlink aggregated data frames of each station device, the block acknowledgement request frame of multiple station devices in different sub-channels of the same time slot, where the block acknowledgement request frame is used to indicate that the station device replies a block acknowledgement frame and channel resource information of the block acknowledgement frame, the block acknowledgement request frame of the station equipment comprises a block acknowledgement request information field of the station equipment, and the block acknowledgement request information field is used for indicating that the downlink aggregated data frame of the station equipment comprises a media access control layer service data unit (MSDU) of at least one communication identifier. The receiving module is used for receiving the block acknowledgement frame sent by each station device.

In another implementation manner, the access point device may adopt the same apparatus structure as that in fig. 22, except that the sending module is configured to send an uplink data trigger frame to at least one station device, where the uplink data trigger frame is used to trigger each station device to send an uplink aggregated data frame on different subchannels in the same time slot, where the uplink aggregated data frame of at least one station device includes a mac layer service data unit MSDU with multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of the uplink aggregated data frames of multiple station devices indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame; the processing module is used for generating a block acknowledgement request trigger frame according to the acknowledgement strategy information of each uplink aggregated data frame, wherein the block acknowledgement request trigger frame is used for triggering each site device to send the block acknowledgement request frame of the site device; the sending module is further configured to send the block acknowledgement request trigger frame; a receiving module, configured to receive, on different subchannels in the same time slot, a block acknowledgement request frame sent by each station device; the processing module is further configured to send a block acknowledgement frame by using the sending module according to the receiving state of the uplink aggregated data frame of each station device.

In another implementation manner, the access point device may adopt the same apparatus structure as that in fig. 22, except that the sending module is configured to send an uplink data trigger frame to at least one station device, where the uplink data trigger frame is used to trigger each station device to send an uplink aggregated data frame on different subchannels in the same time slot, where the uplink aggregated data frame of at least one station device includes a mac layer service data unit MSDU with multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of at least one station device indicates that the access point device replies a block acknowledgement frame after receiving a block acknowledgement request frame; the sending module is further configured to send a random contention trigger frame, where the random contention trigger frame is used to instruct each station device to send a service data frame in a backoff contention mode, where the service data frame includes a block acknowledgement request frame; and the processing module sends a block acknowledgement frame through the sending module according to the receiving state of the uplink aggregation data frame of each station device and the received service data frame.

In another implementation manner, the access point device may adopt the same apparatus structure as that in fig. 22, except that the sending module is configured to send an uplink aggregated data trigger frame to at least one station device, where the uplink aggregated data trigger frame is used to trigger each station device to send uplink aggregated data frames in different subchannels in the same time slot, where the uplink aggregated data frame of at least one station device includes multiple communication identifiers, the uplink aggregated data frame of each station device includes acknowledgement policy information, and the acknowledgement policy information of at least one station device indicates that the access point device replies a block acknowledgement frame after receiving the block acknowledgement request frame; a receiving module, configured to receive a block acknowledgement request frame sent by a station; and the processing module is used for replying the block acknowledgement frame through the sending module according to the block acknowledgement request frame and the receiving state of the uplink aggregated data frame of each site device, wherein the block acknowledgement frame comprises the receiving state information of the uplink aggregated data frame of each site device.

Fig. 23 is a schematic structural diagram of a station device according to a first embodiment of the present invention, and as shown in fig. 23, the apparatus according to this embodiment may include: a receiving module 21, a processing module 22 and a sending module 23, where the receiving module 21 is configured to receive a downlink aggregated data frame sent by an access point device, the downlink aggregated data frame includes a media access control layer service data unit MSDU with multiple communication identifiers, the receiving module is further configured to receive a block acknowledgement request frame sent by the access point device, the block acknowledgement request frame includes block acknowledgement request information fields of multiple site devices, the processing module 22 is configured to obtain the block acknowledgement request information field of the site device according to the block acknowledgement request frame, and reply the block acknowledgement frame through the sending module 23 according to the block acknowledgement request information field of the site device and a receiving state of the downlink aggregated data frame

The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

In another implementation manner, the station device may adopt the same apparatus structure as that in fig. 23, except that the receiving module is configured to receive a downlink aggregated data frame sent by the access point device, where the downlink aggregated data frame includes acknowledgement policy information; a processing module, configured to, after receiving, by a receiving module, a block acknowledgement request frame sent by the access point device according to the acknowledgement policy information, obtain, according to a block acknowledgement request information field of the station device of the block acknowledgement request frame, a media access control layer service data unit MSDU of a communication identifier included in a downlink aggregated data frame of the station device, and reply, by the sending module, the block acknowledgement frame on a channel resource according to a receiving state of the MSDU of the communication identifier included in the downlink aggregated data frame; the channel resource is the same as the channel resource of the downlink aggregated data frame sent by the access point device and received by the station device.

In another implementation manner, the station device may adopt the same apparatus structure as that in fig. 23, except that the receiving module is configured to receive an uplink data trigger frame sent by the access point device; a processing module, configured to send an uplink aggregate data frame of the site device through a sending module at a corresponding time slot and a corresponding sub-channel according to the uplink data trigger frame, where the uplink aggregate data frame of the site device includes a media access control layer service data unit MSDU with multiple communication identifiers, and the uplink data frame of the site device further includes acknowledgement policy information, where the acknowledgement policy information is used to instruct the access point device to reply a block acknowledgement frame after receiving a block acknowledgement request frame; the receiving module is further configured to receive a block acknowledgement request trigger frame sent by the access point device; the processing module is further configured to send a block acknowledgement request frame of the station device through the sending module in a corresponding time slot and sub-channel according to the block acknowledgement request trigger frame, where the block acknowledgement request frame is used to instruct the access point device to reply the block acknowledgement frame.

In another implementation manner, the station device may adopt the same apparatus structure as that in fig. 23, except that the receiving module is configured to receive an uplink data trigger frame sent by the access point device; a processing module, configured to send an uplink aggregate data frame of the site device through a sending module at a corresponding time slot and a corresponding sub-channel according to the uplink data trigger frame, where the uplink aggregate data frame of the site device includes a media access control layer service data unit MSDU with multiple communication identifiers, and the uplink data frame of the site device further includes acknowledgement policy information, where the acknowledgement policy information is used to instruct the access point device to reply a block acknowledgement frame after receiving a block acknowledgement request frame; a sending module, configured to send a block acknowledgement request frame to the access point device, where the block acknowledgement request frame is used to instruct the access point device to reply a block acknowledgement frame according to a reception state of an uplink aggregated data frame of each station device, and the block acknowledgement frame includes reception state information of the uplink aggregated data frame of each station device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of wireless communication, comprising:

wherein the block acknowledgement request frame includes block acknowledgement request information fields of a plurality of site devices, and the block acknowledgement request information field of at least one site device of the plurality of site devices indicates that the downlink aggregated data frame of the site device includes a media access control layer service data unit (MSDU) of a plurality of communication identifiers;

the access point equipment receives the block acknowledgement request frame sent by each station equipment on different sub-channels in the same time slot; and the access point equipment sends a block acknowledgement frame according to the receiving state of the downlink aggregated data frame of each station equipment.

2. The method of claim 1, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used for indicating whether the downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used for indicating an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

3. The method of claim 2, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in the downlink aggregate data frame of the station device, and wherein the starting sequence control field of the communication identifier comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

4. The method according to any one of claims 1 to 3, wherein the block acknowledgement request frame further comprises a block acknowledgement request control field, and the block acknowledgement request control field comprises a total number of communication identifiers field, and the total number of communication identifiers field is used for indicating the total number of communication identifiers of the downlink aggregated data frame of each station device.

5. The method of claim 4, wherein the block acknowledgement request control field is further configured to indicate a longest time or a longest length for the triggered plurality of station devices to transmit a physical layer convergence Procedure Protocol Data Unit (PPDU).

6. A method according to claim 5, wherein the block acknowledgement request control field further comprises a multi-channel identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field, wherein the combination of the multi-channel identifier subfield, the compressed bitmap subfield, and the multicast retransmission subfield, or the reserved field, is used to indicate a type of the block acknowledgement request frame, wherein the type of the block acknowledgement request frame comprises a multi-site device multi-channel identifier block acknowledgement request frame, and wherein the multi-site device multi-channel identifier block acknowledgement request frame is used to indicate that multiple site devices reply with a block acknowledgement frame on different subchannels of a same timeslot.

7. The method of claim 1, wherein the block acknowledgement request information field of the station device comprises at least one communication identifier field and a starting sequence control field associated with the communication identifier field, wherein the communication identifier field comprises an Association Identification (AID) of the station device and a communication identifier, and wherein the starting sequence control field associated with the communication identifier field is used to indicate an identification of an MSDU of the communication identifier included in a downlink aggregated data frame of the station device of the AID.

8. The method of claim 7, wherein the starting sequence control field associated with the communication identifier field comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in a downlink aggregated data frame of the station device of the AID.

9. The method of claim 8, wherein the block ack request frame further comprises a block ack request control field of each station device, and wherein the block ack request control field of the station device is used to indicate the number of communication identifiers of the station device.

10. The method of claim 9, wherein the block acknowledgement request frame further comprises a common information field indicating a sum of the number of communication identifiers of downlink aggregated data frames of each station device.

11. The method of claim 10, wherein the common information field further comprises joint resource indication information, and wherein the joint resource indication information indicates resource information of each station device.

12. The method of claim 10, wherein the block acknowledgement request frame further includes a trigger information field of each station device, and wherein the trigger information field of the station device includes resource indication information of the station device.

13. The method according to claim 11 or 12, wherein the trigger information field of the station device comprises any one or a combination of association identification AID, transmission power, number of spatial streams, Modulation and Coding Strategy (MCS), coding type, and indication information of whether to use time-space-time code (STBC) of the station device.

14. A method of wireless communication, comprising:

the method comprises the steps that an access point device sends downlink aggregated data frames of the site devices to at least one site device on different sub-channels in the same time slot by utilizing an orthogonal frequency division multiple access technology, the downlink aggregated data frames of the site devices comprise acknowledgement strategy information, and the acknowledgement strategy information of the uplink aggregated data frames of a plurality of the site devices indicates the site devices to reply block acknowledgement frames after receiving block acknowledgement request frames;

the block acknowledgement request frame of the station equipment comprises a block acknowledgement request information field of the station equipment, and the block acknowledgement request information field is used for indicating that a downlink aggregated data frame of the station equipment comprises a media access control layer service data unit (MSDU) of at least one communication identifier;

15. The method of claim 14, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, wherein each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used for indicating whether the downlink aggregated data frame of the station device includes an MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used for indicating an identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

16. The method of claim 15, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and wherein the starting sequence control field of the communication identifier comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

17. A method of wireless communication, comprising:

the method comprises the steps that access point equipment sends an uplink data trigger frame to at least one station equipment, wherein the uplink data trigger frame is used for triggering each station equipment to send uplink aggregated data frames on different sub-channels in the same time slot;

the access point equipment receives uplink aggregation data frames sent by each station equipment, wherein the uplink aggregation data frame of at least one station equipment comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, the uplink aggregation data frame of each station equipment comprises acknowledgement strategy information, and the acknowledgement strategy information of the uplink aggregation data frames of the station equipment indicates that the access point equipment replies a block acknowledgement frame after receiving a block acknowledgement request frame;

18. The method of claim 17, wherein the block acknowledgement request trigger frame comprises an association identifier set field, wherein the association identifier set field is used to indicate an association identifier of a station device that needs to send the block acknowledgement request frame.

19. The method of claim 17, wherein the block acknowledgement request trigger frame comprises a common information field comprising a trigger frame type, wherein the trigger frame type comprises a multi-site device multi-pass identifier block acknowledgement request trigger frame, and wherein the multi-site device multi-pass identifier block acknowledgement request trigger frame is configured to instruct a plurality of site devices to reply to a block acknowledgement frame on different subchannels of a same timeslot.

20. The method of claim 19, wherein the block acknowledgement frame comprises a block acknowledgement information field, wherein the block acknowledgement information field comprises block acknowledgement information subfields of a plurality of station devices, wherein the block acknowledgement information subfields of the station devices comprise a block acknowledgement indication bitmap field and a communication identifier bitmap field, wherein each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, and wherein the block acknowledgement indication bitmap field and the communication identifier bitmap field are used for indicating whether an acknowledgement type of the MSDU of the communication identifier corresponding to the bit is block acknowledgement or acknowledgement;

21. A method of wireless communication, comprising:

the access point equipment receives an uplink aggregation data frame sent by each station equipment, wherein the uplink aggregation data frame of at least one station equipment comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, the uplink aggregation data frame of each station equipment comprises acknowledgement strategy information, and the acknowledgement strategy information of at least one station equipment indicates that the access point equipment replies a block acknowledgement frame after receiving a block acknowledgement request frame;

the access point equipment sends a random competition trigger frame, wherein the random competition trigger frame is used for indicating each station equipment to send a service data frame in a backoff competition mode, and the service data frame comprises a block confirmation request frame;

22. A method of wireless communication, comprising:

the method comprises the steps that access point equipment sends an uplink data trigger frame to at least one station equipment, wherein the uplink data trigger frame is used for triggering each station equipment to send uplink aggregated data frames in different sub-channels in the same time slot;

the access point equipment receives an uplink aggregation data frame sent by each station equipment, wherein the uplink aggregation data frame of at least one station equipment comprises a plurality of communication identifiers, the uplink aggregation data frame of each station equipment comprises acknowledgement strategy information, and the acknowledgement strategy information of at least one station equipment indicates that the access point equipment replies a block acknowledgement frame after receiving a block acknowledgement request frame;

23. The method of claim 22, wherein the block ack request frame comprises a block ack request control field, and wherein the block ack request control field comprises a reserved bit field, and wherein the reserved bit field is used to instruct the access point device to reply with the block ack frame according to a reception status of an uplink aggregate data frame for each station device.

24. A method of wireless communication, comprising:

the method comprises the steps that station equipment receives a downlink aggregation data frame sent by access point equipment on different subchannels in the same time slot, wherein the downlink aggregation data frame comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers; the downlink aggregated data frame of the site equipment comprises acknowledgement strategy information, and the acknowledgement strategy information of the downlink aggregated data frame of the site equipment indicates that the site equipment replies a block acknowledgement frame after receiving the block acknowledgement request frame;

25. The method of claim 24, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, and wherein each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

26. The method of claim 25, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and wherein the starting sequence control field of the communication identifier comprises a starting sequence number;

27. The method according to any one of claims 24 to 26, wherein the block ack request frame further includes a block ack request control field, the block ack request control field includes a total number of communication identifiers field, and the station device obtains a total number of communication identifiers of the downlink aggregated data frame of the station device according to the total number of communication identifiers field.

28. The method of claim 27, further comprising:

and the site equipment acquires the longest time or the longest length of the site equipment for transmitting the PPDU according to the block acknowledgement request control field.

29. The method of claim 28, wherein the block acknowledgement request control field further comprises a multi-pass identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field;

30. The method according to claim 24, wherein the block acknowledgement request information field of the station device comprises at least one communication identifier field and a starting sequence control field associated with the communication identifier field, wherein the communication identifier field comprises an association identification AID of the station device and a communication identifier, and wherein the station device obtains the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device.

31. The method according to claim 30, wherein the starting sequence control field associated with the communication identifier field comprises a starting sequence number, and wherein the acquiring, by the station device, the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the association identification AID of the station device and the communication identifier field comprises:

32. The method of claim 31, wherein the block acknowledgement request frame further comprises a public information field, the method further comprising:

33. The method of claim 32, wherein the common information field further comprises joint resource indication information indicating resource information of each station device.

34. The method of claim 32, wherein the block ack request frame further includes a trigger information field of each station device, and the station device obtains the resource indication information of the station device according to the trigger information field of each station device.

35. The method according to claim 33 or 34, wherein the trigger information field of the station device comprises any one or a combination of association identification AID, transmission power, number of spatial streams, Modulation and Coding Scheme (MCS), coding type, and indication information of whether to use time-space-time code (STBC) of the station device.

36. A method of wireless communication, comprising:

the method comprises the steps that station equipment receives a downlink aggregated data frame sent by access point equipment on different sub-channels in the same time slot by using an orthogonal frequency division multiple access technology, wherein the downlink aggregated data frame comprises acknowledgement strategy information, and the acknowledgement strategy information of the downlink aggregated data frames of a plurality of station equipment indicates the station equipment to reply a block acknowledgement frame after receiving a block acknowledgement request frame;

37. The method of claim 36, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, and wherein each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

38. The method of claim 37, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, and wherein the starting sequence control field of the communication identifier comprises a starting sequence number;

39. A method of wireless communication, comprising:

40. The method of claim 39, wherein the block acknowledgement request trigger frame comprises an association identifier set field;

41. The method of claim 39, wherein the block acknowledgement request trigger frame comprises a common information field comprising a trigger frame type, the trigger frame type comprising a multi-site device multi-beacon identifier block acknowledgement request trigger frame;

42. A method of wireless communication, comprising:

43. A method of wireless communication, comprising:

44. The method of claim 43, wherein the block acknowledgement request frame comprises a block acknowledgement request control field, wherein the block acknowledgement request control field comprises a reserved bit field, and wherein the station device instructs the access point device to reply to the block acknowledgement frame according to a reception status of an uplink aggregate data frame of each station device using the reserved bit field.

45. A method of wireless communication, comprising:

46. An access point device, comprising:

wherein the block acknowledgement request frame includes block acknowledgement request information fields of a plurality of site devices, and the block acknowledgement request information field of at least one site device indicates that the downlink aggregated data frame of the site device includes a media access control layer service data unit (MSDU) of a plurality of communication identifiers;

the sending module is further configured to receive, on different subchannels in the same time slot, a block acknowledgement request frame sent by each station device; the access point device is further configured to send a block acknowledgement frame according to the receiving status of the downlink aggregated data frame of each station device.

47. The access point device of claim 46, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, the communication identifier field comprises a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used for indicating whether the downlink aggregated data frame of the station device includes MSDUs of the communication identifiers corresponding to the bit, and the starting sequence control field is used for indicating identities of the MSDUs of the communication identifiers included in the downlink aggregated data frame of the station device.

48. The access point device of claim 47, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, wherein the starting sequence control field of the communication identifier comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

49. The access point device of any one of claims 46 to 48, wherein the block acknowledgement request frame further comprises a block acknowledgement request control field, and wherein the block acknowledgement request control field comprises a total number of communication identifiers field for indicating a total number of communication identifiers of downlink aggregated data frames of each station device.

50. The access point device of claim 49, wherein the block acknowledgement request control field is further configured to indicate a longest time or a longest length for the triggered multiple station devices to transmit a physical layer convergence Procedure Protocol Data Unit (PPDU).

51. The access point device of claim 50, wherein the block acknowledgement request control field further comprises a multi-pass identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field, wherein the combination of the multi-pass identifier subfield, the compressed bitmap subfield, and the multicast retransmission subfield, or the reserved field, is configured to indicate a type of the block acknowledgement request frame, wherein the type of the block acknowledgement request frame comprises a multi-site device multi-pass identifier block acknowledgement request frame configured to indicate that multiple site devices reply to a block acknowledgement frame on different subchannels of a same timeslot.

52. The access point device of claim 46, wherein the block acknowledgement request information field of the station device comprises at least one communication identifier field and a starting sequence control field associated with the communication identifier field, wherein the communication identifier field comprises an Association Identification (AID) of the station device and a communication identifier, and wherein the starting sequence control field associated with the communication identifier field is configured to indicate an identification of an MSDU of the communication identifier included in a downlink aggregate data frame of the station device for the AID.

53. The access point device of claim 52, wherein the communication identifier field associated starting sequence control field comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in a downlink aggregated data frame of the station device of the AID.

54. The access point device of claim 53, wherein the block acknowledgement request frame further comprises a block acknowledgement request control field of each station device, the block acknowledgement request control field of the station device indicating a number of communication identifiers of the station device.

55. The access point device of claim 54, wherein the block acknowledgement request frame further comprises a common information field indicating a sum of the number of communication identifiers of downlink aggregated data frames of each station device.

56. The access point device of claim 55, wherein the common information field further comprises joint resource indication information indicating resource information of each station device.

57. The access point device of claim 55, wherein the block acknowledgement request frame further comprises a trigger information field of each station device, and wherein the trigger information field of the station device comprises resource indication information of the station device.

58. The AP device of claim 56 or 57, wherein the trigger information field of the station device comprises any one or a combination of AID, transmission power, number of spatial streams, Modulation and Coding Scheme (MCS), coding type, and STBC indication information of time-space-time codes.

59. An access point device, comprising:

60. The access point device of claim 59, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, the communication identifier field comprises a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner, a status value of the bit is used for indicating whether the downlink aggregated data frame of the station device includes the MSDU of the communication identifier corresponding to the bit, and the starting sequence control field is used for indicating the identification of the MSDU of the communication identifier included in the downlink aggregated data frame of the station device.

61. The access point device of claim 60, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station device, wherein the starting sequence control field of the communication identifier comprises a starting sequence number indicating a sequence number of a first MSDU of the communication identifier in the downlink aggregate data frame of the station device.

62. An access point device, comprising:

63. The access point device of claim 62, wherein the block acknowledgement request trigger frame comprises an association identifier set field indicating an association identifier of a station device that needs to send a block acknowledgement request frame.

64. The access point device of claim 62, wherein the block acknowledgement request trigger frame comprises a common information field comprising a trigger frame type, wherein the trigger frame type comprises a multi-site device multi-traffic identifier block acknowledgement request trigger frame, and wherein the multi-site device multi-traffic identifier block acknowledgement request trigger frame is configured to instruct a plurality of site devices to reply to a block acknowledgement frame on different subchannels of a same timeslot.

65. The access point device of claim 64, wherein the block acknowledgement frame comprises a block acknowledgement information field comprising block acknowledgement information subfields of a plurality of station devices, the block acknowledgement information subfields of the station devices comprising a block acknowledgement indication bitmap field and a communication identifier bitmap field, each bit in the communication identifier bitmap field corresponding to each communication identifier in a one-to-one correspondence, the block acknowledgement indication bitmap field and the communication identifier bitmap field indicating whether an acknowledgement type of the MSDU of the communication identifier to which the bit corresponds is a block acknowledgement or an acknowledgement;

66. An access point device, comprising:

67. An access point device, comprising:

68. The access point device of claim 67, wherein the block acknowledgement request frame comprises a block acknowledgement request control field, the block acknowledgement request control field comprising a reserved bit field for instructing the access point device to reply to a block acknowledgement frame according to a reception status of an uplink aggregate data frame for each station device.

69. A station apparatus, comprising:

a receiving module, configured to receive a downlink aggregated data frame sent by an access point device on different subchannels in the same time slot, where the downlink aggregated data frame includes a media access control layer service data unit MSDU with multiple communication identifiers; the downlink aggregated data frame of the site equipment comprises acknowledgement strategy information, and the acknowledgement strategy information of the downlink aggregated data frame of the site equipment indicates that the site equipment replies a block acknowledgement frame after receiving the block acknowledgement request frame;

70. The station device according to claim 69, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

71. The station apparatus of claim 70, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station apparatus, wherein the starting sequence control field of the communication identifier comprises a starting sequence number;

72. The station device according to any one of claims 69 to 71, wherein the block acknowledgement request frame further comprises a block acknowledgement request control field, the block acknowledgement request control field comprises a total number of communication identifiers field, and the processing module is further configured to obtain a total number of communication identifiers of the downlink aggregated data frame of the station device according to the total number of communication identifiers field.

73. The station device of claim 72, wherein the processing module is further configured to obtain, according to the block acknowledgement request control field, a maximum time or a maximum length for the station device to transmit a physical layer convergence Procedure Protocol Data Unit (PPDU).

74. The station device of claim 73, wherein the block acknowledgment request control field further comprises a multiple access identifier subfield, a compressed bitmap subfield, a multicast retransmission subfield, and a reserved field;

75. The station device of claim 69, wherein the block acknowledgement request information field of the station device comprises at least one communication identifier field and a starting sequence control field associated with the communication identifier field, wherein the communication identifier field comprises an Association Identification (AID) of the station device and a communication identifier, and wherein the processing module is further configured to obtain the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the Association Identification (AID) of the station device.

76. The station device of claim 75, wherein the starting sequence control field associated with the communication identifier field comprises a starting sequence number, and wherein the processing module is configured to obtain the communication identifier field of the station device and the starting sequence control field associated with the communication identifier field according to the communication identifier field and the association identification AID of the station device, and comprises:

77. The station device of claim 76, wherein the block acknowledgement request frame further includes a public information field, and wherein the processing module is further configured to obtain a sum of the number of communication identifiers of the downlink aggregated data frame of the station device according to the public information field.

78. The station device of claim 77, wherein the block acknowledgement request frame further includes a trigger information field of each station device, and wherein the processing module is further configured to obtain resource indication information of the station device according to the trigger information field of each station device.

79. The station device of claim 78, wherein the trigger information field of the station device comprises any one or a combination of an association identifier AID, a transmission power, a number of spatial streams, a Modulation and Coding Scheme (MCS), a coding type, and information indicating whether to use a time-space-time code (STBC) or not of the station device.

80. A station apparatus, comprising:

a receiving module, configured to receive a downlink aggregated data frame sent by an access point device on different subchannels in the same time slot by using an ofdma technique, where the downlink aggregated data frame includes acknowledgement policy information, and the acknowledgement policy information of the downlink aggregated data frames of multiple site devices indicates that the site device replies a block acknowledgement frame after receiving a block acknowledgement request frame;

81. The station device according to claim 80, wherein the block acknowledgement request information field of the station device comprises a communication identifier field and a starting sequence control field, wherein the communication identifier field comprises a communication identifier bitmap field, and each bit in the communication identifier bitmap field corresponds to each communication identifier in a one-to-one manner;

82. The station apparatus of claim 81, wherein the starting sequence control field comprises a starting sequence control field of a communication identifier included in a downlink aggregate data frame of the station apparatus, the starting sequence control field of the communication identifier comprising a starting sequence number;

83. A station apparatus, comprising:

84. The station device of claim 83, wherein the block acknowledgement request trigger frame comprises an association identifier set field;

85. The station device of claim 83, wherein the block acknowledgement request trigger frame comprises a common information field comprising a trigger frame type, the trigger frame type comprising a multi-site device multi-beacon identifier block acknowledgement request trigger frame;

86. A station apparatus, comprising:

87. A station apparatus, comprising:

88. The station device of claim 87, wherein the block acknowledgement request frame comprises a block acknowledgement request control field, wherein the block acknowledgement request control field comprises a reserved bit field, and wherein the processing module is further configured to instruct the access point device to reply with the reserved bit field the block acknowledgement frame according to a reception status of the uplink aggregate data frame by each station device.

89. An access point device, comprising:

90. A method of wireless communication, comprising:

91. The method of claim 90, wherein the block acknowledgement frame comprises a block acknowledgement information/acknowledgement information field, wherein the block acknowledgement information/acknowledgement information field comprises a block acknowledgement/acknowledgement information subfield of each station device, wherein the block acknowledgement/acknowledgement information subfield of the station device comprises a communication identifier bitmap field, wherein the communication identifier bitmap field is used for indicating a communication identifier of an MSDU contained in the acknowledged aggregated data frame, and wherein each bit in the communication identifier bitmap field has a one-to-one correspondence with each communication identifier.

92. The method of claim 91, wherein the block acknowledgement frame includes a block acknowledgement information/acknowledgement field including a block acknowledgement/acknowledgement information subfield of the respective station device, the block acknowledgement/acknowledgement information subfield of the station device including a block acknowledgement/acknowledgement indication bitmap field for indicating whether an acknowledgement type of the MSDU of the communication identifier to which the bit corresponds is a block acknowledgement or an acknowledgement;

93. The method of claim 91 or 92, wherein the block acknowledgement information field comprises a per TID information field, wherein the per TID information field comprises at least 1 bit indicating whether the block acknowledgement information field indicates that the aggregated data frames sent by the acknowledged station are single TIDs or whether the block acknowledgement/acknowledgement information subfield comprises a block acknowledgement/acknowledgement indication bitmap field and a communication identifier bitmap field.

94. The method of claim 90, wherein the block acknowledgement frame comprises a block acknowledgement control field, the block acknowledgement control field comprising at least 1 bit indicating that the block acknowledgement frame is a multi-TID multi-site block acknowledgement frame.

95. An access point device, comprising:

a sending module, configured to send an uplink data trigger frame to multiple site devices, where the uplink data trigger frame is used to trigger each site device to send an uplink aggregated data frame on different subchannels in the same time slot or different spaces in the same time slot;

and the processing module is used for sending the block acknowledgement frame through the sending module according to the receiving state of the uplink aggregation data frame of each station device.

96. The device of claim 95, wherein the block acknowledgement frame comprises a block acknowledgement/acknowledgement information field comprising a block acknowledgement/acknowledgement information subfield of each station device, wherein the block acknowledgement/acknowledgement information subfield of the station device comprises a communication identifier bitmap field for indicating a communication identifier of an MSDU contained in the acknowledged aggregated data frame, and wherein each bit in the communication identifier bitmap field has a one-to-one correspondence with each communication identifier.

97. The device of claim 96, wherein the block acknowledgement frame includes a block acknowledgement information/acknowledgement field including a block acknowledgement/acknowledgement information subfield of a respective station device, the block acknowledgement/acknowledgement information subfield of the station device including a block acknowledgement/acknowledgement indication bitmap field for indicating whether an acknowledgement type of the MSDU for the communication identifier to which the bit corresponds is a block acknowledgement or an acknowledgement;

98. The apparatus of claim 96 or 97, wherein the block acknowledgement information field comprises a per TID information field comprising at least 1 bit indicating whether the block acknowledgement information field indicates whether an aggregated data frame sent by an acknowledged station is a single TID or whether a block acknowledgement/acknowledgement information subfield comprises a block acknowledgement/acknowledgement indication bitmap field and a communication identifier bitmap field.

99. The apparatus of claim 98 wherein the block acknowledgement frame comprises a block acknowledgement control field comprising at least 1 bit indicating that the block acknowledgement frame is a multi-TID multi-site block acknowledgement frame.

100. A method of wireless communication, comprising:

the sending end equipment sends a downlink multi-site data frame or sends an uplink aggregated data frame on different sub-channels in the same time slot;

receiving end equipment receives an uplink or downlink aggregated data frame sent by sending end equipment, wherein at least one aggregated data frame comprises a media access control layer service data unit (MSDU) with a plurality of communication identifiers, the aggregated data frame comprises acknowledgement strategy information, and the acknowledgement strategy information of the aggregated data frame indicates the receiving end equipment to reply a block acknowledgement frame;

the receiving end equipment sends a block acknowledgement frame in an OFDMA mode according to the receiving state of the aggregated data frame;

the sending end equipment receives a block acknowledgement request frame sent by the receiving end equipment on different sub-channels with the same time slot; and the sending end equipment sends the block acknowledgement frame according to the receiving state of the downlink aggregated data frame of each receiving end equipment.

101. The method of claim 100, wherein the block acknowledgement frame comprises a block acknowledgement information/acknowledgement information field, wherein the block acknowledgement information/acknowledgement information field comprises a communication identifier bitmap field for indicating a communication identifier of the MSDU included in the acknowledged aggregated data frame, and wherein each bit in the communication identifier bitmap field corresponds to each communication identifier.

102. The method according to claim 100, characterized in that the block acknowledgement frame comprises a block acknowledgement information/acknowledgement field comprising a block acknowledgement/acknowledgement indication bitmap field for indicating whether the acknowledgement type of the MSDU of the communication identifier to which the bit corresponds is a block acknowledgement or an acknowledgement;

if the confirmation type of the MSDU of the communication identifier corresponding to the bit is block confirmation, the block confirmation information/confirmation information field further includes a block confirmation start sequence control field and a block confirmation bitmap field, the block confirmation start sequence control field is used for indicating the start sequence number of the MSDU of the communication identifier corresponding to the bit, and the block confirmation bitmap field is used for indicating the receiving state of each MSDU of the communication identifier.

103. The method of claim 100, wherein the block acknowledgement frame comprises a block acknowledgement control field comprising at least 1 bit indicating that the block acknowledgement frame is an OFDMA multi-TID block acknowledgement frame.

104. A wireless communication device, comprising:

a sending module, configured to send a downlink multi-site data frame, or send an uplink aggregated data frame on different subchannels in the same timeslot or different spaces in the same timeslot;

a receiving module, configured to receive an uplink or downlink aggregated data frame sent by a sending end device, where at least one aggregated data frame includes a media access control layer service data unit MSDU with multiple communication identifiers, and the aggregated data frame includes acknowledgement policy information, and the acknowledgement policy information of the aggregated data frame indicates that the wireless communication device replies a block acknowledgement frame;

a processing module for transmitting a block acknowledgement frame through an OFDMA form according to a reception state of the aggregated data frame;

the sending module is also used for receiving the block acknowledgement request frame sent by the receiving terminal equipment on different sub-channels with the same time slot;

the receiving module is further configured to send a block acknowledgement frame according to a receiving status of the downlink aggregated data frame of each receiving end device.

105. The apparatus of claim 104, wherein the block acknowledgement frame includes a block acknowledgement information/acknowledgement information field, wherein the block acknowledgement information/acknowledgement information field includes a communication identifier bitmap field for indicating a communication identifier of an MSDU contained in the acknowledged aggregated data frame, and wherein each bit in the communication identifier bitmap field has a one-to-one correspondence with each communication identifier.

106. The apparatus according to claim 105, characterised in that the block acknowledgement frame comprises a block acknowledgement information/acknowledgement information field comprising a block acknowledgement/acknowledgement indication bitmap field for indicating whether the acknowledgement type of the MSDU of the communication identifier to which the bits correspond is a block acknowledgement or an acknowledgement;

107. The apparatus of claim 104, wherein the block acknowledgement frame comprises a block acknowledgement control field comprising at least 1 bit indicating that the block acknowledgement frame is an OFDMA multi-TID block acknowledgement frame.