CN106535334A - Data transmission method and device - Google Patents

Abstract

The embodiment of the invention provides a data transmission method and device. The method includes the following steps: an Access Point (AP) broadcasts a first triggering frame which includes site information of at least one first STA; the AP receives a first uplink data frame sent by each first STA, wherein the first uplink data frames include reuse identifiers which are used for identifying whether next transmission of the first STAs needs to use stored or updated site information of themselves; and the AP broadcasts a second triggering frame determined according to the first uplink data frames, the second triggering frame is used for at least triggering second STAs which are sites among the first STAs at least whose reuse identifiers identify that stored or updated site information of themselves needs to be used, and the second triggering frame does not include the site information of the second STAs; and the AP receives second uplink data frames, thereby improving the resource utilization rate, and improving data transmission efficiency.

Description

Data transmission method and device

Technical field

The present embodiments relate to the communication technology, more particularly to a kind of data transmission method and device.

Background technology

Access point (Access in WLAN (Wireless Local Area Networks, abbreviation WLAN) Point, abbreviation AP) may there is multi-group data frame and website (Station, abbreviation STA) between need to Transmit, such as：Due to transfer resource it is limited, therefore AP may to STA send two groups under line number According to frame, with OFDM (Orthogonal Frequency Division Multiple Access, letter Claim OFDMA) development of technology, AP simultaneously can send downlink data frame to multiple STA, as much Individual STA can also send uplink data frames to AP simultaneously.Therefore, in a transmission opportunity Multigroup uplink data frames transmission is usually there will be in (Transmission Opportunity, abbreviation TXOP) Or the transmission of multigroup downlink data frame, every group of uplink data frames transmission potentially included AP while to multiple The downlink data frame that STA sends, every group of downlink data frame transmission have potentially included multiple STA and have sent out to AP The uplink data frames sent.

In prior art：By taking downlink data frame transmission as an example：If AP will to multiple STA send it is multigroup under Row Frame, wherein Frame lead code include the site information of STA, and the site information can include； The mark of website and parameter information etc..The parameter information includes：The spatial stream number of STA, STA enter line number According to transmit adopted modulation and coding strategy (Modulation and Coding Scheme, abbreviation MCS), Type of coding that STA is adopted and STA whether using space-time block coding (Space Time Block Code, Abbreviation STBC) and whether using Beamforming technology (beamforming) etc..Every group of downlink data frame Include the site information of each STA.

However, the STA will be included in the multi-group data frame sent to STA due to AP in prior art Site information, therefore, the site information for repeating to send STA causes the waste of resource, reduces Frame Efficiency of transmission.

The content of the invention

The embodiment of the present invention provides a kind of data transmission method and device, so as to improve resource utilization, And then improve data transmission efficiency.

In a first aspect, the embodiment of the present invention provides a kind of data transmission method, including：Access point AP is wide The first trigger frame is broadcast, first trigger frame includes：The site information of at least one first site STAs； The AP receives the first uplink data frames that each described STA sends, first upstream data Frame includes reusing mark, described to reuse mark for identifying whether STA transmission next time is needed using The site information of itself that is saved or updating；The AP broadcast is true according to first uplink data frames The second fixed trigger frame, wherein described second trigger frame at least include frame type identification, and described second touches Sending out frame is used at least triggering the 2nd STA, and the 2nd STA is at least described heavy in a STA With being designated the website that needs using the site information of itself that is saved or updating, wherein, described the Two trigger frames site information not including the 2nd STA；The AP receives the 2nd STA and is based on The second uplink data frames that second trigger frame sends.

With reference in a first aspect, in the first possible embodiment of first aspect, second trigger frame Also include configured information；Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends out Send second uplink data frames.

With reference in a first aspect, in second possible embodiment of first aspect, second trigger frame Also including the site information of the 3rd STA；Wherein, second trigger frame is used for triggering the 2nd STA And the 3rd STA sends the second uplink data frames；3rd STA is the AP by described Second trigger frame is triggered in addition to the 2nd STA, this time sends the STA of uplink data frames.

With reference to second possible embodiment of first aspect, in the third possible embodiment party of first aspect In formula, second trigger frame includes：The mute pass of federated resource configured information, each the 2nd STA The site information of connection mark and each the 3rd STA；The mute association identification pair of each the 2nd STA A Resource Block is answered, mark one Resource Block of correspondence of each the 3rd STA, the mute association identification For the unappropriated association identifications of the AP.

With reference to second possible embodiment of first aspect, in the 4th kind of possible embodiment party of first aspect In formula, second trigger frame also includes：Federated resource configured information, at least one mute association identification letter Breath；The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA One or more of the index of index and/or the Resource Block being continuously disturbed, the mute association identification is institute State the association identification that AP is not yet assigned to website.

With reference to second possible embodiment of first aspect, in the 5th kind of possible embodiment party of first aspect In formula, second trigger frame includes：The federated resource configured information, mapping indication information and each The site information of the 3rd STA；The mapping indication information is that third value and the 4th numerical value are constituted Second sequence, each one described Resource Block of the third value correspondence, each described third value is simultaneously One the 2nd STA of correspondence, each described 4th numerical value one described Resource Block of correspondence, described in each 4th numerical value is while one the 3rd STA of correspondence.

With reference to the first possible embodiment or second possible embodiment of first aspect or first aspect Or the third possible embodiment or the 4th kind of possible embodiment or the 5th kind of possible embodiment, In 6th kind of possible embodiment of one side, the AP broadcast is true according to first uplink data frames Before the second fixed trigger frame, also include：The AP sends described first to a STA each described STA is corresponding to confirm mark, for identifying the AP, the confirmation mark confirms that a STA is The no reusable site information of itself；Wherein, the 2nd STA is corresponding confirms described in Identification AP confirms the reusable site information of itself of the 2nd STA.

Second aspect, the embodiment of the present invention provide a kind of data transmission method, including：Receive access point AP First trigger frame of broadcast, first trigger frame include：The website letter of at least one first site STAs Breath；First STA sends the first uplink data frames, the first uplink data frames bag to the AP Reuse mark is included, it is described to reuse mark for identifying whether transmission STA next times is needed using The site information of itself that is saved or updating.

With reference to second aspect, in the first possible embodiment of second aspect, described at least one One STA includes that the 2nd STA, the 2nd STA are at least institute in described at least one the oneth STA State to reuse and be designated the website needed using the site information of itself that is saved or updating；Described second STA receives the second trigger frame of the AP broadcast, and wherein described second trigger frame at least includes frame type Mark, and second trigger frame is used at least the 2nd STA of triggering, wherein, second trigger frame is not Including the site information of the 2nd STA；2nd STA is based on second trigger frame to described AP sends the second uplink data frames.

With reference to the first possible embodiment of second aspect, second in second aspect may embodiment party In formula, second trigger frame also includes configured information；Wherein, the configured information is used for indicating currently Only dispatch the 2nd STA and send second uplink data frames.

With reference to the first possible embodiment of second aspect, in the third possible embodiment party of second aspect In formula, site information of second trigger frame also including the 3rd STA, wherein, second trigger frame The second uplink data frames are sent for triggering the 2nd STA and the 3rd STA；Described 3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, this time sends up The STA of Frame.

With reference to second aspect the first possible embodiment or second possible embodiment or the third can Energy embodiment, in the 4th kind of possible embodiment of second aspect, the 2nd STA receives described Before second trigger frame of AP broadcast, also include：2nd STA receives the confirmation that the AP sends Mark；2nd STA is corresponding to confirm that AP described in Identification confirms that the 2nd STA is reusable The site information of itself.

The third aspect, the embodiment of the present invention provide a kind of data transmission method, including：Access point AP sends out The first descending multi-user Frame, the first descending multi-user Frame is sent to include：At least one first The site information of STA, the data for reusing mark and sending to each STA, the reuse mark are used Whether need using the site information of itself that is saved or updating in mark the first STA；Institute State AP and send the second descending multi-user Frame, wherein described second descending multi-user Frame is at least wrapped Include：To the data that the 2nd STA each described sends, the second downstream data frame does not include：Each institute State the site information of the 2nd STA；2nd STA is described in described at least one the oneth STA Reuse is designated needs and preserves or update and using the website of the site information of itself for receiving.

With reference to the third aspect, in the first possible embodiment of the third aspect, described second is descending more User data frame also includes configured information；Wherein, the configured information is used for indicating that current only scheduling is described 2nd STA receives the second descending multi-user Frame.

With reference to the third aspect, in second possible embodiment of the third aspect, described second is descending more Site information and the data that are sent to threeth STA of the user data frame also including the 3rd STA；It is described 3rd STA be AP send corresponding to the second descending multi-user Frame except the 2nd STA with Outer STA.

With reference to second possible embodiment of the third aspect, in the third possible embodiment party of the third aspect In formula, the second descending multi-user Frame includes：Federated resource configured information, each described second The site information of the mute association identification of STA and each the 3rd STA；Each the 2nd STA's is mute Association identification one Resource Block of correspondence, mark one Resource Block of correspondence of each the 3rd STA are described Mute association identification is the unappropriated association identifications of the AP.

With reference to second possible embodiment of the third aspect, in the 4th kind of possible embodiment party of the third aspect In formula, the second descending multi-user Frame also includes：It is federated resource configured information, at least one mute Association identification information；The mute association identification information includes mute association identification, also including the 2nd STA correspondences The index of Resource Block and/or the index of the Resource Block being continuously disturbed and/or send trigger frame resource One or more of the index of block, the mute association identification are the association mark that the AP is not yet assigned to website Know.

With reference to second possible embodiment of the third aspect, in the 5th kind of possible embodiment party of the third aspect In formula, the second descending multi-user Frame includes：Federated resource configured information, mapping indication information With the site information of the 3rd STA each described；The mapping indication information is third value and the 4th numerical value Second sequence of composition, each one Resource Block of the third value correspondence, each described third value are same When one the 2nd STA of correspondence, each described 4th numerical value one Resource Block of correspondence, each described 4th number Value is while one the 3rd STA of correspondence.

With reference to the first possible embodiment or second possible embodiment of the third aspect or the third aspect Or the third possible embodiment or the 4th kind of possible embodiment or the 5th kind of possible embodiment, In the 6th kind of possible embodiment in terms of three, before the AP sends the second descending multi-user Frame, Also include：The AP receives the confirmation mark that each described 2nd STA sends；2nd STA's It is described to confirm that mark confirms the station of reusable 2nd STA of the AP for identifying the 2nd STA Point information.

Fourth aspect, the embodiment of the present invention provide a kind of data transmission method, including：First site STA Receive the first descending multi-user Frame that access point AP sends, the first descending multi-user Frame Including：The site information of at least one the oneth STA, reuse are identified and and to STA transmissions Data, the reuse are identified for identifying whether a STA is needed using saved or renewal The site information of itself；First STA receives described first according to the site information of a STA Data division in descending multi-user Frame.

With reference to fourth aspect, in the first possible embodiment of fourth aspect, described at least one One STA includes that the 2nd STA, the 2nd STA are at least described reuse mark in a STA Know for needing the website using the site information of itself that is saved or updating；2nd STA is received The second descending multi-user Frame that the AP sends, wherein described second descending multi-user data frame packet Include：To the data that the 2nd STA each described sends, the second downstream data frame does not include：Each institute State the site information of the 2nd STA.

With reference to the first possible embodiment of fourth aspect, second in fourth aspect may embodiment party In formula, the second descending multi-user Frame also includes configured information；Wherein, the configured information is used The 2nd STA is currently only dispatched in instruction and receives the second descending multi-user Frame.

With reference to the first possible embodiment of fourth aspect, in the third possible embodiment party of fourth aspect In formula, the second descending multi-user Frame also includes the site information of the 3rd STA and is sent to described The data of the 3rd STA；It is right that 3rd STA sends the second descending multi-user Frame for AP The STA in addition to the 2nd STA for answering.

With reference to fourth aspect the first possible embodiment or second possible embodiment or the third can Energy embodiment, in the 4th kind of possible embodiment of fourth aspect, the 2nd STA receives described Before the second descending multi-user Frame that AP sends, also include：2nd STA is to the AP Send and confirm mark, the confirmation mark confirms the reusable institutes of the AP for identifying the 2nd STA State the site information of the 2nd STA.

In terms of 5th, the embodiment of the present invention provides a kind of data transmission device, and the device is access point AP, Including：Broadcast module, for broadcasting the first trigger frame, first trigger frame includes：At least one The site information of one site STA；Receiver module, for receiving the first of each STA transmission Uplink data frames, first uplink data frames include reusing mark, and the mark that reuses is for mark the Whether one STA transmission next time is needed using the site information of itself that is saved or updating；The broadcast Module, is additionally operable to broadcast the second trigger frame determined according to first uplink data frames, wherein described the Two trigger frames at least include frame type identification, and second trigger frame is used at least triggering the 2nd STA, 2nd STA be at least described reuse in a STA be designated needs using saved or The website of the site information of itself for updating, wherein, second trigger frame does not include the 2nd STA Site information；The receiver module, is additionally operable to receive the 2nd STA based on second trigger frame The second uplink data frames for sending.

In terms of the 5th, in the first possible embodiment in terms of the 5th, second trigger frame Also include configured information；Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends out Send second uplink data frames.

In terms of the 5th, in second possible embodiment in terms of the 5th, second trigger frame Also including the site information of the 3rd STA；Wherein, second trigger frame is used for triggering the 2nd STA And the 3rd STA sends the second uplink data frames；3rd STA is the AP by described Second trigger frame is triggered in addition to the 2nd STA, this time sends the STA of uplink data frames.

With reference to second possible embodiment in terms of the 5th, the third the possible embodiment party in terms of the 5th In formula, second trigger frame includes：The mute pass of federated resource configured information, each the 2nd STA The site information of connection mark and each the 3rd STA；The mute association identification pair of each the 2nd STA A Resource Block is answered, mark one Resource Block of correspondence of each the 3rd STA, the mute association identification For the unappropriated association identifications of the AP.

With reference to second possible embodiment in terms of the 5th, the possible embodiment party of the 4th in terms of the 5th kind In formula, second trigger frame includes：Federated resource configured information, at least one mute association identification information；

The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA One or more of the index of index and/or the Resource Block being continuously disturbed, the mute association identification is institute State the association identification that AP is not yet assigned to website.

With reference to second possible embodiment in terms of the 5th, the possible embodiment party of the 5th in terms of the 5th kind In formula, second trigger frame includes：The federated resource configured information, mapping indication information and each The site information of the 3rd STA；The mapping indication information is that third value and the 4th numerical value are constituted Second sequence, each one described Resource Block of the third value correspondence, each described third value is simultaneously One the 2nd STA of correspondence, each described 4th numerical value one described Resource Block of correspondence, described in each 4th numerical value is while one the 3rd STA of correspondence.

With reference to the first possible embodiment or second possible embodiment in terms of the 5th or in terms of the 5th Or the third possible embodiment or the 4th kind of possible embodiment or the 5th kind of possible embodiment, In the 6th kind of possible embodiment in terms of five, also include：Sending module, for each described first STA sends the corresponding confirmation marks of a STA, described to confirm that mark is true for identifying the AP Recognize the whether reusable site information of itself of a STA；Wherein, the 2nd STA is corresponding really Recognize AP described in Identification and confirm the reusable site information of itself of the 2nd STA.

In terms of 6th, the embodiment of the present invention provides a kind of data transmission device, and described device is the first website STA, including：Receiver module, for receiving the first trigger frame of access point AP broadcast, described first touches Sending out frame includes：The site information of at least one first site STAs；Sending module, for the AP The first uplink data frames are sent, first uplink data frames include reusing mark, and the mark that reuses is used Whether need using the website of itself letter that is saved or updating in identifying to transmit the STA next times Breath.

In terms of the 6th, in the first possible embodiment in terms of the 6th, described device is second STA, including：Receiver module and sending module；Described at least one the oneth STA include the 2nd STA, 2nd STA is that at least described reuse in described at least one the oneth STA is designated needs using The website of the site information of itself of saved or renewal；The receiver module, for receiving the AP Second trigger frame of broadcast, wherein described second trigger frame at least include frame type identification, and described second Trigger frame is used at least triggering the 2nd STA, and wherein, second trigger frame does not include the 2nd STA Site information；The sending module, for sending second based on second trigger frame to the AP Uplink data frames.

With reference to the first possible embodiment in terms of the 6th, second in terms of the 6th may embodiment party In formula, second trigger frame also includes configured information；Wherein, the configured information is used for indicating currently Only dispatch the 2nd STA and send second uplink data frames.

With reference to the first possible embodiment in terms of the 6th, the third the possible embodiment party in terms of the 6th In formula, site information of second trigger frame also including the 3rd STA, wherein, second trigger frame The second uplink data frames are sent for triggering the 2nd STA and the 3rd STA；Described 3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, this time sends up The STA of Frame.

With reference to the first possible embodiment or second possible embodiment in terms of the 6th or the third can Energy embodiment, in the 4th kind of possible embodiment in terms of the 6th, the receiver module is additionally operable to Receive the confirmation mark that the AP sends；2nd STA is corresponding to confirm AP described in Identification Confirm the reusable site information of itself of the 2nd STA.

In terms of 7th, the embodiment of the present invention provides a kind of data transmission device, and described device is access point AP, Including：Sending module, for sending the first descending multi-user Frame, the first descending multi-user number Include according to frame：The site information of at least one the oneth STA, reuse are identified and are sent to each STA Data, the reuse identified for identifying whether a STA is needed using saved or more The new site information of itself；The sending module, is additionally operable to send the second descending multi-user Frame, Wherein described second descending multi-user Frame at least includes：To the data that the 2nd STA each described sends, The second downstream data frame does not include：The site information of each the 2nd STA；2nd STA For the reuse in a STA be designated need preserve or update and using receive itself The website of site information.

In terms of the 7th, in the first possible embodiment in terms of the 7th, described second is descending more User data frame also includes configured information；Wherein, the configured information is used for indicating that current only scheduling is described 2nd STA receives the second descending multi-user Frame.

In terms of the 7th, in second possible embodiment in terms of the 7th, described second is descending more Site information and the data that are sent to threeth STA of the user data frame also including the 3rd STA；It is described 3rd STA be AP send corresponding to the second descending multi-user Frame except the 2nd STA with Outer STA.

With reference to second possible embodiment in terms of the 7th, the third the possible embodiment party in terms of the 7th In formula, the second descending multi-user Frame includes：Federated resource configured information, each described second The site information of the mute association identification of STA and each the 3rd STA；Each the 2nd STA's is mute Association identification one Resource Block of correspondence, mark one Resource Block of correspondence of each the 3rd STA are described Mute association identification is the unappropriated association identifications of the AP.

With reference to second possible embodiment in terms of the 7th, the possible embodiment party of the 4th in terms of the 7th kind In formula, the second descending multi-user Frame also includes：It is federated resource configured information, at least one mute Association identification information；The mute association identification information includes mute association identification, also including the 2nd STA correspondences The index of Resource Block and/or the index of the Resource Block being continuously disturbed and/or send trigger frame resource One or more of the index of block, the mute association identification are the association mark that the AP is not yet assigned to website Know.

With reference to second possible embodiment in terms of the 7th, the possible embodiment party of the 5th in terms of the 7th kind In formula, the second descending multi-user Frame includes：Federated resource configured information, mapping indication information With the site information of the 3rd STA each described；The mapping indication information is third value and the 4th numerical value Second sequence of composition, each one Resource Block of the third value correspondence, each described third value are same When one the 2nd STA of correspondence, each described 4th numerical value one Resource Block of correspondence, each described 4th number Value is while one the 3rd STA of correspondence.

With reference to the first possible embodiment or second possible embodiment in terms of the 7th or in terms of the 7th Or the third possible embodiment or the 4th kind of possible embodiment or the 5th kind of possible embodiment, In the 6th kind of possible embodiment in terms of seven, also include：Receiver module, for receive each described The confirmation mark that two STA send；The confirmation of the 2nd STA is identified for identifying described second STA confirms the site information of reusable 2nd STA of the AP.

Eighth aspect, the embodiment of the present invention provide a kind of data transmission device, and described device is a STA, Including：Receiver module, it is for receiving the first descending multi-user Frame of access point AP transmissions, described First descending multi-user Frame includes：The site information of at least one the oneth STA, reuse mark and and To the data that a STA sends, the reuse is identified for identifying whether a STA needs Using the site information of itself that is saved or updating；The receiver module, for according to described first The site information of STA receives the data division in the first descending multi-user Frame.

With reference to eighth aspect, in the first possible embodiment of eighth aspect, described device is second STA, described at least one the oneth STA include that the 2nd STA, the 2nd STA are a STA In it is at least described reuse be designated need using it is saved or update the site information of itself station Point；The receiver module, is additionally operable to receive the second descending multi-user Frame that the AP sends, its Described in the second descending multi-user Frame include：It is to the data that the 2nd STA each described sends, described Second downstream data frame does not include：The site information of each the 2nd STA.

With reference to the first possible embodiment of eighth aspect, second in eighth aspect may embodiment party In formula, the second descending multi-user Frame also includes configured information；Wherein, the configured information is used The 2nd STA is currently only dispatched in instruction and receives the second descending multi-user Frame.

With reference to the first possible embodiment of eighth aspect, in the third possible embodiment party of eighth aspect In formula, the second descending multi-user Frame also includes the site information of the 3rd STA and is sent to described The data of the 3rd STA；It is right that 3rd STA sends the second descending multi-user Frame for AP The STA in addition to the 2nd STA for answering.

With reference to eighth aspect the first possible embodiment or second possible embodiment or the third can Can embodiment, in the 4th kind of possible embodiment of eighth aspect, sending module, for described AP sends and confirms mark, for identifying the 2nd STA, the confirmation mark confirms that the AP is reusable The site information of the 2nd STA.

The embodiment of the present invention provides a kind of data transmission method and device, and the method includes：Access point AP The first trigger frame is broadcasted, the first trigger frame includes：The site information of at least one the oneth STA；AP connects The first uplink data frames that each STA sends are received, the first uplink data frames include reusing mark, weight Whether needed using the station of itself that is saved or updating for mark the first STA transmission next time with mark Point information；The second trigger frame that AP broadcast is determined according to the first uplink data frames, the second trigger frame are used for extremely Trigger the 2nd STA less, the 2nd STA is that at least reuse in a STA is designated needs using having protected The website of the site information of itself deposited or update, the second trigger frame site information not including the 2nd STA； AP receives the second uplink data frames, so as to improve resource utilization, and then improves data transmission efficiency.

Description of the drawings

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Apply accompanying drawing to be used needed for example or description of the prior art and do one and simply introduce, it should be apparent that, under Accompanying drawing in the description of face is some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.

A kind of flow chart of data transmission method that Fig. 1 is provided for one embodiment of the invention；

A kind of structural representation of M-BA frames that Fig. 2 is provided for one embodiment of the invention；

The schematic diagram of the PPDU frame structures that Fig. 3 is provided for one embodiment of the invention；

The schematic diagram one of part field in the PPDU frames that Fig. 4 A are provided for one embodiment of the invention；

The schematic diagram two of part field in the PPDU frames that Fig. 4 B are provided for one embodiment of the invention；

The schematic diagram three of part field in the PPDU frames that Fig. 4 C are provided for one embodiment of the invention；

In the TXOP that Fig. 5 is provided for one embodiment of the invention, AP and STA's interacts schematic diagram；

In the TXOP that Fig. 6 is provided for another embodiment of the present invention, AP and STA's interacts schematic diagram；

A kind of flow chart of data transmission method that Fig. 7 is provided for another embodiment of the present invention；

A kind of flow chart of data transmission method that Fig. 8 is provided for yet another embodiment of the invention；

A kind of flow chart of data transmission method that Fig. 9 is provided for further embodiment of this invention；

In the TXOP that Figure 10 is provided for yet another embodiment of the invention, AP and STA's interacts schematic diagram；

In the TXOP that Figure 11 is provided for further embodiment of this invention, AP and STA's interacts schematic diagram；

A kind of flow chart of data transmission method that Figure 12 is provided for a further embodiment of the present invention；

A kind of structural representation one of data transmission device that Figure 13 is provided for one embodiment of the invention；

A kind of structural representation two of data transmission device that Figure 14 is provided for one embodiment of the invention；

A kind of structural representation three of data transmission device that Figure 15 is provided for one embodiment of the invention；

A kind of structural representation four of data transmission device that Figure 16 is provided for one embodiment of the invention；

A kind of structural representation five of data transmission device that Figure 17 is provided for one embodiment of the invention；

A kind of structural representation six of data transmission device that Figure 18 is provided for one embodiment of the invention；

A kind of structural representation seven of data transmission device that Figure 19 is provided for one embodiment of the invention.

Specific embodiment

For making purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with this Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, Obviously, described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment for obtaining, belongs to the scope of protection of the invention.

The embodiment of the present invention is based on WLAN (Wireless Local Area Networks, abbreviation WLAN) technology, can adopt OFDMA technologies when uplink data frames or downlink data frame is sent, Low in order to solve the problems, such as the waste of resource in prior art, data frame transfer efficiency, the present invention provides one Plant data transmission method and device.

A kind of flow chart of data transmission method that Fig. 1 is provided for one embodiment of the invention, the method should With scene it is：AP needs to receive at least one STA in transmission opportunity TXOP or multiple TXOP Multigroup uplink data frames are sent, the executive agent of the method is AP, and wherein the method specifically includes following step Suddenly：

S101：Access point AP broadcasts the first trigger frame, and the first trigger frame includes：At least one first stop The site information of point STA；

Wherein, the site information includes：The parameter information of website and site identity, or site information Including：The resource indication information of the parameter information of website, site identity and website, the parameter letter of the website Breath include it is following at least one：The spatial stream number of website, the modulation for being adopted and coding strategy (Modulation And Coding Scheme, abbreviation MCS), the type of coding that adopted, whether use space-time block coding (Space Time Block Code, abbreviation STBC) and whether Beamforming technology is adopted, the website Resource indication information is used for indicating the channel resource that AP distributes to website.

S102：AP receives the first uplink data frames that each STA sends, the first uplink data frames Including mark is reused, mark is reused for identifying whether STA transmission next time is needed using saved Or the site information of itself for updating；

Specifically, after a usual STA receives the first trigger frame, a STA can preserve oneself Site information, it is to be understood that after trigger frame is received, website can update the website of oneself to website Information, unless the site information of oneself is constant.When a STA needs to send multi-group data frame, then weigh The site information using the STA for preserving is needed with the first STA of Identification transmission next time, when first When STA only need to send one group of Frame, then reusing the first STA of Identification transmission next time need not use The site information of the STA for preserving.

S103：The second trigger frame that AP broadcast is determined according to the first uplink data frames, wherein the second trigger frame At least include frame type identification, and the second trigger frame is used at least triggering the 2nd STA；

Wherein, the 2nd STA is that at least described reuse in a STA is designated and needs to use The website of the site information of itself of saved or renewal, wherein, second trigger frame does not include institute State the site information of the 2nd STA.

Specifically, it is determined that the 2nd STA also needs to send uplink data frames, in this case, AP can be with No longer it is the 2nd STA transmitting station information, the 2nd STA can be using front once transmission uplink data frames Site information.Therefore, second trigger frame can not be including the site information of the 2nd STA in this case.

S104：AP receives the second uplink data frames that the 2nd STA is sent based on the second trigger frame.

Wherein, the 2nd STA using the site information of included the 2nd STA in the first trigger frame to AP The second uplink data frames are sent, such as：If site information includes the resource indication information of website, second The channel resource that STA can be indicated using the resource indication information sends the second uplink data frames.

It should be noted that multiple STA can be adopted when sending corresponding first uplink data frames simultaneously OFDMA technologies are used, equally, multiple 2nd STA can when sending corresponding second uplink data frames simultaneously With using OFDMA technologies.Furthermore, multiclass website can when sending corresponding second uplink data frames simultaneously With using OFDMA technologies.

The embodiment of the present invention provides a kind of data transmission method, including：AP the first trigger frames of broadcast, first Trigger frame includes：The site information of at least one first site STAs；AP receives each STA and sends out The first uplink data frames sent, the first uplink data frames include reusing mark, reuse mark for mark the Whether one STA transmission next time is needed using the site information of itself that is saved or updating；AP is broadcasted According to the second trigger frame that the first uplink data frames determine, the second trigger frame is not including the 2nd STA's Site information, last AP receive the second uplink data frames that the 2nd STA is sent based on the second trigger frame, As the site information of the 2nd STA may not necessarily be carried in the second trigger frame, so as to improve resource profit With rate, and then improve data transmission efficiency.

Further, before above-mentioned S103 steps, also include：The AP is to a STA each described The corresponding confirmation marks of a STA are sent, it is described to confirm mark for identifying the AP confirmations institute State the whether reusable site information of itself of a STA；Wherein, the 2nd STA is corresponding confirms mark Know the mark AP and confirm the reusable site information of itself of the 2nd STA.

Wherein, the confirmation mark can be carried in the acknowledgement frame that AP is sent to each STA, or Multi-user-the block of person AP broadcast confirms (Multi-Block Acknowledgement, abbreviation M-BA) frame In in confirmation to a STA.The acknowledgement frame includes block acknowledgement frame BA and acknowledgement frame ACK, Or the BA/ACK of OFDMA forms, the M-BA frames are acknowledgement frames for being broadcast to multi-site； Something in common is then：All include that a STA is corresponding and confirm mark, and can send out for a STA Single medium access control layer protocol Data Unit (the medium access control protocol data for sending Unit, abbreviation MPDU) confirmed, it is also possible to control is accessed for the aggregated media that a STA sends Preparative layer protocol Data Unit (aggregate medium access control protocol data unit, referred to as A-MPDU) confirmed.Such as：When acknowledgement frame is the polymerization A-MPDU for multiple MPDU Confirmed, then the acknowledgement frame can be a block confirmation (Block in OFDMA Acknowledgement, abbreviation BA), when acknowledgement frame is confirmed for single MPDU, then The acknowledgement frame can be the confirmation (Acknowledgement, abbreviation ACK) in OFDMA forms.It is logical Often when AP determines that certain STA needs to reuse the station of an included STA in first trigger frame Point information, and AP can meet the allotment of the site information of a STA, confirm mark in this case Know then mark AP and confirm that a STA can reuse the site information of a STA；Otherwise, confirm mark Know mark AP and confirm that a STA cannot reuse the site information of a STA.

A kind of structural representation of M-BA frames that Fig. 2 is provided for one embodiment of the invention, as shown in Fig. 2 Wherein, M-BA frames include：At least one block confirmation/confirmation, each block confirmation/confirmation is Send what is confirmed to a STA, if generally AP is simply to the single of a STA transmission MPDU is confirmed, then block confirmation/confirmation is then confirmation, if AP is to one The A-MPDU that first STA sends is confirmed, then block confirmation/confirmation is then block confirmation. An association identification (Association Identifier, abbreviation is included in each block confirmation/confirmation AID), each AID is the unique mark that AP distributes to a STA, and the mark is for mark first STA.It represents that the confirmation is the STA that AP is sent to that AID is identified, and wherein, AP is When associating with STA foundation, distribute AID's to a STA.M-BA frames also include：Control Frame (Control frame) processed, duration/mark (duration/ID), reception address (Receive Address, Abbreviation RA), send address (Transmit Address, abbreviation TA), block confirms control (BAControl), Frame Check Sequence (Frame Check Sequence, abbreviation FCS).Wherein, block confirms that control includes block Confirm/confirm tactful (BA/ACK policy), multiple-communication identifier (Multi-Traffic Identifier, Abbreviation Multi-TID), compress bitmap (compress bitmap), multicast retransmission (Groupcast with Retries, abbreviation GCR), retain (Reserved) field and communication identifier _ information (Traffic Identifier_Information, abbreviation TID_info), wherein TID info are used to refer to the presence of how many blocks Confirmation/confirmation；Further, block confirmation/confirmation includes：Each communication identifier information (Per Traffic Identifier Information, abbreviation Per TID Info), when block confirmation/confirmation is that block is true When recognizing, then block confirmation/confirmation also includes that block confirms homing sequence control (Block Acknowledgement Starting Sequence Control) and block confirmation bitmap (Block Acknowledgement bitmap).Further, before Per TID Info, 11 bits are provided with The AID of the first STA, is used to refer to which website AP will send an acknowledgment to.12nd bit is that block is true Recognize/confirm instruction (BA/ACK Indication), the 13rd～16 bit is communication identifier TID.

Further, the schematic diagram of the PPDU frame structures that Fig. 3 is provided for one embodiment of the invention, such as Shown in Fig. 3, the physical layer convergence process protocol Data Unit (Physical Layer Convergence Procedure Protoal Data Unite, abbreviation PPDU) Frame includes legacy preamble code (Legacy Preamble), efficient lead code (High Efficient preamble) and data division；Wherein, tradition Lead code includes tradition-short training field (Legacy-Shorting Training Field, abbreviation L-STF), passes System-long training field (Legacy-Long Training Field, abbreviation L-LTF), tradition-signaling field (Legacy-Signal Field, abbreviation L-SIG).Efficiently lead code includes repeating signaling field (Rpeated Legacy Signal Field, RL-SIG), efficiently-signaling field-A, (High Efficient Signal Field-A, abbreviation HE-SIG-A) and efficiently-signaling field-B (High Efficient Signal Field-B, letter Claim HE-SIG-B), and efficiently-short training field (High Efficient Shorting Training Field, referred to as HE-STF), efficiently-long training field (High Efficient Legacy Long Training Field, abbreviation HE-LTF).HE-SIG-A and HE-SIG-B parts are primarily upon at present.HE-SIG-A and HE-SIG-B All STA are broadcast to, wherein HE-SIG-A carries transmission bandwidth, basic service set color (Basic Service Set Color, abbreviation BSS color), the symbol numbers of HE-SIG-B and HE-SIG-B adopt The information such as MCS, per 20MHz bandwidth on carry out copy transmissions；HE-SIG-B includes publicly-owned information (Common Parameters), the corresponding parameter informations of each STA, the mark of each STA and connection Close resource indication information or the corresponding resource indication informations of each STA.Wherein, STA is designated this The association identification of website, publicly-owned information include data transfer adopt protection interval (Guard Interval, Abbreviation GI), OFMDA is indicated or multi-user's multiple-input and multiple-output (Multi-User Multiple Input Multiple Output, abbreviation MU-MIMO) instruction, HE-LTF numbers and pattern, potentially include Row/descending instruction, conventional H E-SIG-B with the presence or absence of etc. parameter.Wherein, the partial parameters of publicly-owned information Among HE-SIG-A can also being carried on.If the PPDU frames be trigger frame, publicly-owned information, each The parameter information of STA, the mark of each STA and federated resource configured information or each STA correspondence Resource indication information can not include in HE-SIG-B that these information can be included in trigger frame In other fields.

Further, a kind of situation, the resource of all STA indicate to represent by federated resource configured information, The federated resource configured information is that a kind of centralized resources are indicated, i.e., by a federated resource configured information Indicate to distribute to the channel resource of all STA, indicate which subchannel each STA can use.It is another The situation of kind, if the resource indication information of all STA is separate, such case is known as website formula resource Indicate, i.e. each STA one resource indication information of correspondence, the resource indication information is used for indicating the STA Channel resource, the resource indication information of each STA, the parameter information of the STA and mark in this case Know as an entirety.Based on both of these case, there is following three kinds of structures：

The schematic diagram one of part field in the PPDU frames that Fig. 4 A are provided for one embodiment of the invention, such as schemes Shown in 4A, PPDU frames include following field：Publicly-owned information and multiple site information, wherein publicly-owned information Including federated resource configured information, each site information includes site parameter information and the site identity, this In federated resource configured information be centralized resources and indicate, it is used for indicating AP to multiple STA point The channel resource matched somebody with somebody；A kind of federated resource indicating means is given below, but the present invention is not limited only to the instruction Method.The federated resource configured information be the first numerical value and second value composition sequence, here first Numerical value can be 0, and second value can be the 1, or first numerical value for 1, and second value is 0, one First numerical value, one channel resource of correspondence, second value one channel resource of correspondence, from the sequence Highest order starts to the direction of lowest order, by the first consecutive identical numerical value of maximum length or the second number The corresponding channel resource of value is used as a Resource Block；I.e. with continuous " 1 " or continuous " 0 " table Show the channel resource for distributing to same STA, as long as there is 1->0 or 0->1 transformation, then it represents that cut Change to another STA.Such as：Federated resource configured information is 001101111, and the order of site identity is： STA1, STA2, STA3 and STA4, with reference to federated resource configured information and the order of site identity, Show the 1st and the 2nd sub-channels give STA1, the 3rd and the 4th sub-channels give STA2, 5th sub-channels give STA3, and the 6th, 7,8,9 sub-channels give STA4.

The schematic diagram two of part field in the PPDU frames that Fig. 4 B are provided for one embodiment of the invention, such as schemes Shown in 4B, the PPDU frames include：Publicly-owned information, site identity list and the corresponding parameter of each website Information, publicly-owned information include federated resource configured information, and the federated resource configured information is also centralized money Source instruction, such as：Site identity list includes：STA1, STA2, STA3 and STA4.

The schematic diagram three of part field in the PPDU frames that Fig. 4 C are provided for one embodiment of the invention, such as schemes Shown in 4C, including：STA1 information, STA2 information are until STAN information, wherein each STA Information includes：The resource indication information of each STA, the corresponding parameter informations of each STA and each STA Mark, such case is that website formula resource is indicated, i.e. each STA one resource indication information of correspondence, The resource indication information is used for indicating the channel resource of the STA, the resource indication information of each STA, right The mark of the parameter information of the STA for answering and corresponding STA is used as an entirety.

Indicated based on above-mentioned centralized resources or website formula resource indicates both of these case, below will be detailed In the case of carefully introducing two kinds in a up TXOP, the processing method of AP：

The first situation：First trigger frame includes federated resource configured information, i.e. federated resource configured information Indicate for centralized resources.

In the TXOP that Fig. 5 is provided for one embodiment of the invention, AP and STA interact schematic diagram, As shown in figure 5, first, AP broadcasts the first trigger frame, and the first trigger frame includes：At least one first stop The site information and federated resource configured information of point STA, wherein site information include：Each STA The mark of parameter information and each STA, four STA marks be respectively STA1, STA2, STA3 and STA4, federated resource configured information are used for indicating AP to STA1, STA2, STA3 and STA4 The channel resource of distribution；Federated resource configured information is the First ray of the first numerical value and second value composition, Wherein each first numerical value corresponds to a channel resource, each second value one channel resource of correspondence；From The highest order of First ray starts to the direction of lowest order, by the first consecutive identical numerical value of maximum length Or the channel resource corresponding to second value is used as a Resource Block, and distribute to a same STA； The wherein STA is designated association identification AID or partial association mark.Federated resource shown in Fig. 5 refers to Show information for " 001101111 ", the federated resource configured information instruction STA1, STA2, STA3 and STA4 Transmitting uplink data is carried out, while they distinguish corresponding to indicate STA1, STA2, STA3 and STA4 Subchannel.

Secondly, each STA is after the first trigger frame for receiving AP broadcast, these STA Determine whether that multigroup uplink data frames will be sent to AP, if certain STA determines being, this One STA sends the first STA of reuse Identification included described in the first uplink data frames to AP will be again With the site information of oneself.Generally reuse mark and take a bit, it is 0 or 1, works as reuse 1 is designated, then mark will reuse site information, conversely, when reuse is designated 0, then mark need not be again With site information, as shown in figure 5, the reuse mark of STA1, STA2 and STA3 is 1, STA4 Reuse be designated 0.

Again, after AP receives the first uplink data frames of STA transmissions, then to each STA Send acknowledgement frame or broadcast multi-user-block confirms M-BA frames, acknowledgement frame includes that a STA is corresponding Confirm mark, M-BA frames include that each STA is corresponding and confirm mark, confirm mark for identifying AP confirms the site information of the whether reusable STA of a STA, such as：AP is sent to STA1 Confirmation be designated 1, to STA2, STA3 and STA4 send confirmation mark be 0.Wherein, pin The website for being designated 0 is reused for sending, AP is defaulted as 0 to the confirmation mark of the station replies, such as STA3 and STA4.

Next, AP broadcasts the second trigger frame.Being divided into following four may：

The first may：Second trigger frame includes：Federated resource configured information in first trigger frame, The mute association identification information and the site information of the 3rd STA of each the 2nd STA, the 3rd STA are AP The STA for this time sending uplink data frames in addition to the 2nd STA is triggered by the second trigger frame；Mute association mark Knowledge information includes mute association identification, and the mute association identification is not yet assigned to the association identification of website for AP, than Can such as be particular associative mark, such as be identified with full 0, " 00000000000 ", the particular associative is identified The website of this cell, or standard agreement regulation can be informed by AP by broadcast.Each the 2nd STA Mute association identification one Resource Block of correspondence, mark one Resource Block of correspondence of each the 3rd STA.As schemed Shown in 5, as the reuse of STA1 is designated 1, and confirm that mark is also 1, therefore STA1 is 2nd STA, STAX are mute association identification, three corresponding site information of the 3rd STA to be included：STA5 Information, STA6 information and STA7 information, federated resource configured information here is " 001101111 ", 00 corresponding Resource Block is corresponding with mute association identification STAX, shows the 1st and the 2nd sub-channels point To STA1,11 corresponding Resource Block are corresponding with STA5, show the 3rd and the 4th sub-channels are given STA5,0 corresponding Resource Block are corresponding with STA6, show that the 5th sub-channels give STA6,1111 pairs The Resource Block answered is corresponding with STA7, shows that the 6th, 7,8,9 sub-channels give STA7.

Second possible, and the second trigger frame also includes：Federated resource configured information, at least one mute association The site information of identification information and each the 3rd STA, the 3rd STA are that AP is triggered by the second trigger frame In addition to the 2nd STA, the STA of uplink data frames is this time sent；Mute association identification information includes mute association mark Knowledge, the index of each corresponding Resource Block of the 2nd STA and the corresponding index of Resource Block being disturbed.Can be with It is understood by, each corresponding Resource Block of the 2nd STA and the Resource Block being disturbed can also be using except indexes Outer other indicating modes, the present invention are not limited.Mute association identification information also includes that each Resource Block is indexed Number heel one indicates that the purposes type of the Resource Block is indicated.Each mute association identification and continuously at least one The rope of the index and/or continuous at least one Resource Block being disturbed of the corresponding Resource Block of individual 2nd STA Draw corresponding, mark one Resource Block of correspondence of each the 3rd STA.Such as：STA1、STA2 For the 2nd STA, STA5, STA6 are the 3rd STA, and federated resource configured information is " 001101111 ", It is 2,0 corresponding Resource Block that the index of 00 corresponding Resource Block is the index of 1,11 corresponding Resource Block Index be 3, and the Resource Block is the Resource Block being disturbed, and the index of 1111 corresponding Resource Block is 4, Continuous Resource Block 1, Resource Block 2 and the corresponding mute association identification of Resource Block 3 are a mute association identification, Here mute association identification can be identical with the first mute association identification in possible, is such as identified with full 0, " 00000000000 ", STA5 are 1,2 and 3 according to the corresponding Resource Block index of mute association identification, can To determine that itself corresponding Resource Block index is 4.

The third is possible, and the second trigger frame includes：Federated resource configured information, mapping indication information and every The site information of individual 3rd STA, the 3rd STA trigger out the 2nd STA for AP by the second trigger frame Outward, this time send the STA of uplink data frames；Mapping indication information is that third value and the 4th numerical value are constituted The second sequence, each described third value one described Resource Block of correspondence, each described third value are same When one the 2nd STA of correspondence, each described 4th numerical value one described Resource Block of correspondence, each institute The 4th numerical value is stated while one the 3rd STA of correspondence.Such as：Here federated resource configured information is " 001101111 ", from a high position to the direction of low level, " 00 " corresponding Resource Block is then the 1st channel and the 2 subchannels, " 11 " corresponding Resource Block are then the 3rd subchannel and the 4th subchannel, " 0 " corresponding money Source block is then the 5th subchannel, " 1111 " corresponding Resource Block then for the 6th, 7,8,9 subchannels, the Two trigger frames include：The mark of three the 3rd STA, respectively STA5, STA6 and STA7, due to The reuse of STA1 is designated 1, and confirms that mark is also 1, and second trigger frame does not include STA1, should Second trigger frame also includes mapping indication information, and the wherein mapping indication information is the 3rd number for 1000,1 Value, 0 is the 4th numerical value, each 1 or 0 corresponding Resource Block, 1 correspondence of such as highest order Resource Block be then the 1st subchannel and the 2nd subchannel, additionally, 1 represents that the Resource Block corresponding to it is Represent that the Resource Block corresponding to it is distributed to the 3rd STA to the 2nd STA distribution, 0.Therefore, really Determine the 1st and the 2nd sub-channels give STA1, and STA5, STA6 and STA7 are in the second trigger frame In storage order determine the 3rd and the 4th sub-channels give STA5, the 5th sub-channels give STA6, 6th, 7,8,9 sub-channels give STA7.

4th kind of possibility：If the second trigger frame does not include triggering, any one the 3rd STA sends upstream data The information of frame, therefore, needing to include a configured information in the second trigger frame, the configured information is used for Indicate that currently only dispatching the 2nd STA sends second uplink data frames, there is no other websites while The second uplink data frames are sent, the such as configured information can be referred to by special federated resource assigned sequence Show, for another example, the configured information can be media access control layer (Media Access Control, letter Claiming MAC) bit in heading or multiple bits indicate.

It should be noted that the site information of the site information of above-mentioned 3rd STA and a STA, second The site information complete unity of STA, such as：If the site information of a STA includes：First STA's Parameter information and STA marks, then the site information of the 3rd STA includes：The ginseng of the 3rd STA Number information and the 3rd STA marks；If the site information of a STA includes：The parameter letter of the first STA The resource indication information of breath, STA marks and a STA, then the site information of the 3rd STA Including：The resource indication information of the parameter information of the 3rd STA, the 3rd STA marks and the 3rd STA.

Finally, AP receives the second uplink data frames that STA1, STA5, STA6 and STA7 send, Certainly, the second uplink data frames also include：Mark is reused, reuse here is identified and the first upstream data Reuse mark meaning in frame is identical, as shown in figure 5, the weight of STA1, STA5, STA6 and STA7 It is also all 0 that 0, AP is to the confirmation mark that they send with mark.

Site information in the second trigger frame sent due to AP not including the 2nd STA, so as to improve Resource utilization and data transmission efficiency.

Second situation：Resource indication information indicates that for website formula resource website formula resource indicates such as Fig. 4 C It is shown.

In the TXOP that Fig. 6 is provided for another embodiment of the present invention, AP and STA interact schematic diagram, As shown in fig. 6, AP broadcasts the first trigger frame, first trigger frame includes：STA1 information, STA2 Information, STA3 information and STA4 information, each STA information include：The parameter information of each STA, Each STA mark and each STA resource indication information, resource indication information be used for indicate AP to The channel resource of the first STA distribution, the mark of four STA here are respectively：STA1、STA2、 STA3 and STA4, such as：The resource indication information of STA1 indicates being somebody's turn to do the 1st, 2 subchannel distributions STA1。

Secondly, each STA is after the first trigger frame for receiving AP broadcast, these STA Determine whether that multigroup uplink data frames will be sent to AP, if certain STA determines being, first STA to send include in the first uplink data frames to AP and reuses mark, and reuse Identification this One STA also has more uplink data frames transmission, needs the reuse epicycle in next round uplink to be transferred from Oneself site information.Generally reuse mark takes a bit, and it is 0 or 1, is identified when reusing For 1, then mark will reuse site information, conversely, when reuse is designated 0, then mark need not reuse station Point information, as shown in fig. 6, the reuse mark of STA1, STA2 and STA3 is the weight of 1, STA4 With being designated 0.

Again, after AP receives the first uplink data frames of STA transmissions, then to each STA Send acknowledgement frame or broadcast multi-user-block confirms M-BA frames, acknowledgement frame includes that a STA is corresponding Confirm mark, M-BA frames include that each STA is corresponding and confirm mark, confirm mark for identifying AP confirms the site information of the whether reusable STA of a STA, such as：AP is sent to STA1 Confirmation be designated 1, to STA2, STA3 send confirmation mark be 0.Mark is reused for sending For 0 website 4, AP is defaulted as 0 to the confirmation mark that the website sends.

Next, AP broadcasts the second trigger frame, if the mark of each STA, resource indication information It is an entirety with parameter information, then the second trigger frame does not include：The site information of each the 2nd STA. If the second trigger frame needs to trigger the 3rd STA transmission uplink data frames, the second trigger frame includes：Often The site information of individual 3rd STA, the site information of the 3rd STA include：The parameter information of the 3rd STA, 3rd STA identify and the 3rd STA resource indication information, the parameter information of the 3rd STA includes following At least one：The spatial stream number of the 3rd STA, the modulation for being adopted and coding strategy MCS, adopted Type of coding, whether use space-time block coding STBC and whether adopt Beamforming technology.Such as Shown in Fig. 6, the second trigger frame includes the information of three the 3rd STA, is respectively：STA5 information, STA6 information and STA7 information, each STA information include resource indication information, mark and parameter letter Breath, the site information in the second trigger frame not including STA1.

It is alternatively possible：If the second trigger frame does not include triggering, any one the 3rd STA sends upstream data The information of frame, therefore, needing to include a configured information in the second trigger frame, the configured information is used for Indicate that currently only dispatching the 2nd STA sends second uplink data frames, there is no other websites while The second uplink data frames are sent, such as, the triggering configured information can be media access control layer (Media Access Control, abbreviation MAC) bit in heading or multiple bits indicate.

Finally, AP receives the second uplink data frames that STA1, STA5, STA6 and STA7 send, Certainly, the second uplink data frames also include：Mark is reused, reuse here is identified and the first upstream data Reuse mark meaning in frame is identical, as shown in fig. 6, the weight of STA1, STA5, STA6 and STA7 It is also all 0 that 0, AP is to the confirmation mark that they send with mark.

Wherein, reuse mark here is additionally operable to whether the mark transmission the first STA next times will reuse certainly The channel resource of body；Confirm that mark is additionally operable to identify the AP and confirms whether a STA is reusable The channel resource of itself.

In second situation, due to the second trigger frame site information not including the 2nd STA, so as to improve Resource utilization and data transmission efficiency.

A kind of flow chart of data transmission method that Fig. 7 is provided for another embodiment of the present invention, the method Executive agent is a STA, specifically includes following steps：

S701：The first trigger frame of access point AP broadcast is received, the first trigger frame includes：At least one The site information of the first site STA；

S702：First STA sends the first uplink data frames to AP, and the first uplink data frames include reusing Mark, reusing mark is used for identifying whether STA transmission next time is needed using saved or renewal The site information of itself.

As whether a STA can will reuse the website letter of itself by the reuse mark to AP feedbacks Breath, so as to AP could be caused to determine, next round sends the website letter whether trigger frame will carry a STA Breath.

A kind of flow chart of data transmission method that Fig. 8 is provided for yet another embodiment of the invention, the method Executive agent is the 2nd STA, and described at least one the oneth STA include the 2nd STA, the 2nd STA At least described reuse in for described at least one the oneth STA is designated needs using saved or renewal The site information of itself website, as shown in figure 8, the method specifically includes following flow process：

S801：Second site STA receives the first trigger frame of access point AP broadcast, the first trigger frame bag Include：The site information of at least one first site STAs；

S802：2nd STA sends the first uplink data frames to AP, and the first uplink data frames include second The reuse mark of STA；

S803：2nd STA receives the second trigger frame of AP broadcast, and wherein the second trigger frame at least includes Frame type identification, and the second trigger frame is used at least the 2nd STA of triggering, wherein, the second trigger frame is not wrapped Include the site information of the 2nd STA；

S804：2nd STA sends the second uplink data frames based on the second trigger frame to AP.

Specifically, the parameter information of the 2nd STA include it is following at least one：2nd STA's Spatial stream number, the modulation for being adopted and coding strategy MCS, the type of coding for being adopted, whether use STBC and whether adopt Beamforming technology；The resource indication information is used for indicating the AP to institute The channel resource of the 2nd STA distribution is stated, to be then additionally operable to mark the 2nd STA next for the reuse mark Transmission will reuse the channel resource of itself.

A kind of optional mode, second trigger frame also include configured information；Wherein, the configured information For indicating that currently only dispatching the 2nd STA sends second uplink data frames.

Another kind of optional mode, site information of second trigger frame also including the 3rd STA, wherein, Second trigger frame is used for triggering the 2nd STA and the 3rd STA the second upstream datas of transmission Frame；3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, The STA of uplink data frames is sent this time.

Further, before the 2nd STA receives the second trigger frame of the AP broadcast, also include： 2nd STA receives the confirmation mark that the AP sends；2nd STA is corresponding to confirm mark Identify the AP and confirm the reusable site information of itself of the 2nd STA.

The embodiment of the present invention provides a kind of data transmission method, including：2nd STA receives AP broadcast First trigger frame, the first trigger frame include：The site information of at least one first site STAs；2nd STA The first uplink data frames are sent to AP, the first uplink data frames include the reuse mark of the 2nd STA, the Two STA receive the second trigger frame of AP broadcast, and wherein described second trigger frame at least includes frame type mark Know, and second trigger frame is used at least triggering the 2nd STA, wherein, second trigger frame is not wrapped Include the site information of the 2nd STA；2nd STA sends the second uplink data frames to AP.Due to Second trigger frame need not include the site information of the 2nd STA again, so as to improve resource utilization and data Efficiency of transmission.

It is noted that the reuse mark in the present invention can be using MAC in the first uplink data frames " more data " bit or other reusable bits or reservation bit in head in frame control field, Confirm that mark can be divided into two kinds of situations, one kind is carried in acknowledgement frame, such as OFDMA BA/ACK In, it is possible to use bit shared by " more data " in control frame field in the MAC header of acknowledgement frame Position, it is also possible to use bit shared by " sequence ", or can also be other positions, the present invention is to this It is not limited, another kind is carried in M-BA frame structures, can specifically carry BA/ACK information words 1 bit in each AID information in section in 4 bit TID domains, or in starting sequence control field Reserved bit bit, or other positions, the present invention it is without limitation.

A kind of flow chart of data transmission method that Fig. 9 is provided for further embodiment of this invention, the method Executive agent is AP, as shown in figure 9, the method includes following flow process：

S901：Access point AP sends the first descending multi-user Frame, the first descending multi-user Frame Including：The site information of at least one the oneth STA, the number for reusing mark and sending to each STA According to whether reuse mark needs to use the station of itself that is saved or updating for the first STA of mark Point information；

Wherein, the site information of a usual STA and reuse mark are carried in first downstream data frame In lead code, the site information includes：The parameter information of website and site identity；Or, website letter Breath includes：The resource indication information of the parameter information of website, site identity and website, the money of the website Source configured information is used for indicating the channel resource that the AP distributes to the website；First descending multi-user Frame is such as OFDMA Frames.The parameter information of the first STA include it is following at least one：The Modulation that the spatial stream number of one STA, a STA are adopted and coding strategy MCS, described Whether type of coding that one STA is adopted, a STA use STBC and whether adopt wave beam Forming technique.

Specifically, specifically, after a usual STA receives the first descending multi-user Frame, the One STA can preserve the site information of oneself.It is understood that website once receives descending multi-user number After frame, website can update the site information of oneself, unless the site information of oneself is constant.Generally work as AP When needing to same STA transmission multi-group data frames, then reuse Identification AP will use last round of descending The site information of the STA in multi-user data frame sends next round multi-user data frame, and first STA needs to receive next round multi-user data frame using the site information of itself, when AP is not required to same When STA sends one group of Frame, then AP need not reuse the site information of a STA, and first STA need not reuse the site information of itself.

S902：AP sends the second descending multi-user Frame, and wherein the second descending multi-user Frame includes： To the data that each the 2nd STA sends, second downstream data frame does not include：The website of each the 2nd STA Information, the 2nd STA are that the reuse at least one the oneth STA is designated needs preservation or updates and use The website of the site information of itself for receiving.

Specifically, the second descending multi-user Frame does not include：The site information of the 2nd STA, then the The site information of the 2nd STA that two STA can send first downstream data frame before use is received under second Row multi-user data frame, certainly, the second descending multi-user Frame can also be included for current new addition The site information of STA.

The embodiment of the present invention provides a kind of data transmission method, including：First, AP transmissions first are descending more User data frame, the first descending multi-user Frame lead code include：The site information of each STA, The data for reusing mark and sending to each STA；Secondly, AP sends the second descending multi-user number According to frame, wherein the second descending multi-user Frame includes：To the data that each the 2nd STA sends, second Descending multi-user Frame does not include：The site information of each the 2nd STA, so that improve resource Utilization rate and data transmission efficiency.

Further, a kind of situation, the resource of all STA indicate to represent by federated resource configured information, The federated resource configured information is that a kind of centralized resources are indicated, i.e., by a federated resource configured information Indicate to distribute to the channel resource of all STA, indicate which subchannel each STA can use.It is another The situation of kind, if the resource indication information of all STA is separate, such case is known as website formula resource Indicate, i.e. each STA one resource indication information of correspondence, the resource indication information is used for indicating the STA Channel resource, the resource indication information of each STA, the parameter information of the STA and mark in this case Know as an entirety.Based on both of these case, exist such as Fig. 4 A, Fig. 4 B and tri- kinds of structures of Fig. 4 C：

Indicated based on above-mentioned centralized resources or website formula resource indicates both of these case, below will be detailed In the case of carefully introducing two kinds in a descending TXOP, or in multiple TXOP, the processing method of AP：

The first situation：First descending multi-user Frame also includes federated resource configured information, Ke Yishi As shown in Figure 4 A including federated resource configured information and the mark of each STA, and the mark of each STA Know and corresponding parameter information is used as a site information entirety.Can also be as shown in Figure 4 B including connection Close resource indication information, site identity list and site parameter information.

In the TXOP that Figure 10 is provided for yet another embodiment of the invention, AP and STA interact schematic diagram, As shown in Figure 10, first, AP sends a first descending multi-user Frame to all STA, The first descending multi-user Frame includes：The site information of the 2nd STA, reuse mark, connection The data closed resource indication information and send to each the 2nd STA, the website letter of wherein described second STA Breath, reuse mark, federated resource configured information are specifically in the first descending multi-user Frame lead code Carry, the reuse identifies the site information that whether will reuse a STA for identifying AP, federated resource Configured information is used for indicating the channel resource that AP distributes to all STA；Federated resource configured information For the First ray that the first numerical value and second value are constituted, wherein one channel money of each the first numerical value correspondence Source, each second value one channel resource of correspondence；First ray represents the mark according to all STA The storage order of knowledge, the highest order from First ray to from the beginning of lowest order direction, by the continuous of maximum length Channel resource corresponding to the first numerical value of identical or second value is used as a Resource Block, and distributes to A same STA.As shown in Figure 10, the site information of four STA include site identity and Site parameter information, site identity are respectively STA1, STA2, STA3 and STA4.Federated resource refers to Show that information is used for indicating the channel resource that AP distributes to STA1, STA2, STA3 and STA4；Joint Resource indication information is " 001101111 ", the federated resource configured information indicate AP to STA1, STA2, STA3 and STA4 send downlink data, at the same indicate the corresponding subchannels of STA1 be the 1st, 2 subchannels, STA2 correspondences the 3rd, 4 subchannels, STA3 the 5th subchannels of correspondence are corresponding with STA4 the 6th, 7,8 and 9 subchannels.It can be that 1 or 0,1 expression will reuse site information to reuse mark, and 0 expression need not Site information is reused, as shown in Figure 10, the reuse mark of wherein STA1 and STA2 is all 1, STA3 Reuse mark with STA4 is all 0.

Secondly, AP sends the second descending multi-user Frame.Being divided into following four may：

The first may：The second descending multi-user Frame includes：The federated resource configured information, The mute association identification information of each the 2nd STA, the site information of each the 3rd STA and it is sent to every The data of individual 3rd STA, the 3rd STA are that AP sends removing corresponding to the second descending multi-user Frame STA beyond 2nd STA；Mute association identification information includes mute association identification, each described 2nd STA Mute association identification one Resource Block of correspondence, described in the mark correspondence one of each the 3rd STA Resource Block, mute association identification are the unappropriated association identifications of AP.As shown in Figure 10, the second trigger frame bag Include STAX, STAY, STA5 and STA6, wherein STAX, STAY is mute association identification, STAX Can also be same mute association identification mark with STAY, as the reuse of STA1 and STA2 is identified all It is 1, therefore STA1 and STA2 is the 2nd STA, STA5 and STA6 is two the 3rd STA, Here federated resource configured information is " 001101111 ", shows the 1st and the 2nd sub-channels are given STA1, the 3rd and the 4th sub-channels give STA2, and the 5th sub-channels give STA5, and the 6th, 7, 8,9 sub-channels give STA6.

Second may：The second descending multi-user Frame includes：The federated resource configured information, The mark of at least one mute association identification information and each the 3rd STA, parameter information and be sent to each the The data of three STA, the 3rd STA send the second descending multi-user Frame institute for the AP The corresponding STA in addition to the 2nd STA；Mute association identification information includes mute association identification, each The index of the corresponding Resource Block of the 2nd STA and the corresponding index of Resource Block being disturbed.It is understood that Each corresponding Resource Block of the 2nd STA and the Resource Block being disturbed can also be referred to using others except indices Show mode, the present invention is not limited.Mute association identification information is also included for broadcasting or sending trigger frame Resource Block call number, optional each Resource Block call number heel one indicate the purposes type of the Resource Block Indicate.The index of each described mute association identification Resource Block corresponding with continuous at least one the 2nd STA And/or continuous at least one the Resource Block being disturbed index it is corresponding, the mark of each the 3rd STA Know one Resource Block of correspondence, the mute association identification is the association mark that the AP is not yet assigned to website Know, can such as be particular associative mark, such as be identified with full 0, " 00000000000 ", the special pass Connection mark can inform the website of this cell, or standard agreement regulation by AP by broadcast.Such as： STA1, STA2 are the 2nd STA, and STA5, STA6 are the 3rd STA, and federated resource configured information is " 001101111 ", it is 2,0 that the index of 00 corresponding Resource Block is the index of 1,11 corresponding Resource Block The index of corresponding Resource Block is 3, and the Resource Block is the Resource Block being disturbed, 1111 corresponding moneys The index of source block is 4, continuous Resource Block 1, and Resource Block 2 and Resource Block 3 correspond to a mute association identification, Here mute association identification can be identical with the first mute association identification in possible, is such as identified with full 0, " 00000000000 ", STA5 are 1,2 and 3 according to the corresponding Resource Block index of mute association identification, can To determine that itself corresponding Resource Block index is 4.

The third may：The second descending multi-user Frame includes：The federated resource configured information, Mapping indication information, the parameter information of each the 3rd STA and the data of each the 3rd STA are sent to, institute State the 3rd STA be the AP send corresponding to the second descending multi-user Frame except described second STA beyond STA；The mapping indication information is the second sequence that third value and the 4th numerical value are constituted, Each one described Resource Block of the third value correspondence, each described third value is while one institute of correspondence The 2nd STA is stated, each one described Resource Block of the 4th numerical value correspondence, each described 4th numerical value are same When correspondence one the 3rd STA.Such as：Here federated resource configured information is " 001101111 ", From a high position to the direction of low level, " 00 " corresponding Resource Block is then the 1st channel and the 2nd subchannel, " 11 " Corresponding Resource Block is then the 3rd subchannel and the 4th subchannel, and " 0 " corresponding Resource Block is then the 5th sub Channel, " 1111 " corresponding Resource Block then for the 6th, 7,8,9 subchannels, the second trigger frame includes： The mark of two the 3rd STA, respectively STA5 and STA6, due to the reuse mark of STA1 and STA2 Knowledge is 1, and second trigger frame does not include STA1 and STA2, and second trigger frame also refers to including mapping Show information, wherein the mapping indication information is third value for 1100,1, and 0 is the 4th numerical value, and each 1 Or 0 all correspond to a Resource Block, 1 corresponding Resource Block of such as highest order then for the 1st subchannel and 2nd subchannel, additionally, 1 represents that the Resource Block corresponding to it is distributed to the 2nd STA, 0 represents Resource Block corresponding to it is distributed to the 3rd STA.Accordingly, it is determined that the 1st and the 2nd sub-channels point To STA1, the 3rd and the 4th sub-channels give STA2, and the 5th sub-channels give STA5, and the 6th, 7,8,9 sub-channels give STA6.

4th kind of possibility：If the second descending multi-user Frame does not send descending to any one the 3rd STA Data, therefore, any one site information need not be included in the second descending multi-user Frame in lead code, The site information includes the parameter information of website and site identity.In addition, the second descending multi-user Frame Only need to include configured information, this AP is sent to the data of the 2nd STA.The configured information is used for Indicate that currently only dispatching the 2nd STA receives the second descending multi-user Frame, does not have other websites same When need to receive the second descending multi-user Frame.Such as the configured information can pass through special federated resource A bit or multiple bits in assigned sequence instruction or lead code is indicated.

As the second descending multi-user Frame that AP sends does not include the parameter information of the 2nd STA, from And improve resource utilization and data transmission efficiency.

Second situation：Resource indication information indicates that for website formula resource website formula resource here is indicated Can be the resource indication information including each STA as shown in Figure 4 C, the corresponding parameters of each STA The mark of information and each STA, the wherein resource indication information of each STA, the ginseng of corresponding STA The mark of number information and corresponding STA is used as a site information entirety.

In the TXOP that Figure 11 is provided for further embodiment of this invention, AP and STA interact schematic diagram, As shown in figure 11, AP sends a first descending multi-user Frame to all STA, and this first Descending multi-user Frame lead code includes the reuse mark and site information of each STA, website letter Breath includes：The mark of each STA, resource indication information and parameter information, the resource refer to Show that information is used for indicating the channel resource that the AP distributes to a STA, each described STA Resource indication information, the parameter information of a corresponding STA and a corresponding STA Mark is used as entirety, in addition, the first descending multi-user Frame also includes the number for being sent to a STA According to.The mark of four STA here is respectively：STA1, STA2, STA3 and STA4, than Such as：The resource indication information of STA1 is indicated the STA1 of the 1st, 2 subchannel distributions.Wherein, reuse Mark is additionally operable to identify the channel the money whether AP will reuse a STA in next round transmission Source, and whether a STA will reuse the channel resource of itself.

If next, the mark of each STA, resource indication information and parameter information are one Overall, AP sends the second descending multi-user Frame, wherein, does not wrap in the second descending multi-user Frame The site information of the 2nd STA is included, as shown in figure 11, the second descending multi-user Frame includes STA5 With the site information of STA6, the site information includes resource indication information, mark and parameter information.

It is alternatively possible：If not including to any one the 3rd STA sending out in the second descending multi-user Frame The downlink data for sending, therefore, second downstream data frame includes configured information, the data of the 2nd STA, but Need not be including the site information of any one the 3rd STA.The configured information is used for indicating currently only to adjust Spend the 2nd STA and receive the second descending multi-user Frame, the such as configured information can pass through leading A bit or multiple bits in code is indicated.

Further, before AP sends the second descending multi-user Frame, also include：AP receives each The confirmation mark that 2nd STA sends；The confirmation of the 2nd STA is identified and confirms AP for identifying the 2nd STA Whether second can be sent using the site information of the 2nd STA in last round of descending multi-user Frame descending Multi-user data frame.

In second situation, do not include in the second descending multi-user Frame lead code sent due to AP The site information of the 2nd STA, so that improve resource utilization and data transmission efficiency.

A kind of flow chart of data transmission method that Figure 12 is provided for a further embodiment of the present invention, the method Executive agent is a STA, and the method includes following flow process：

S1201：First site STA receives the first descending multi-user Frame that access point AP sends, institute Stating the first descending multi-user Frame includes：The site information of at least one the oneth STA, reuse mark and With the data sent to a STA, the reuse identified for identifying whether a STA needs Will be using the site information of itself that is saved or updating；

Wherein, the site information includes：The parameter information of website and site identity；The ginseng of the website Number information include it is following at least one：The spatial stream number of the website, the modulation for being adopted and coding strategy MCS, the type of coding for being adopted, whether use STBC and whether adopt Beamforming technology.Or Person, the site information include：The resource indication information of the parameter information of website, site identity and website； The resource indication information of the website is used for indicating the channel resource that the AP distributes to the website；Then The mark that reuses is additionally operable to identify the channel resource that the AP will reuse the 2nd STA.

S1202：First STA receives the first descending multi-user Frame according to the site information of a STA In data division.

Described at least one the oneth STA include that the 2nd STA, the 2nd STA are a STA In it is at least described reuse be designated need using it is saved or update the site information of itself station Point；

2nd STA receives the second descending multi-user Frame that the AP sends, and wherein described the Two descending multi-user Frames include：To the data that the 2nd STA each described sends, described second is descending Frame does not include：The site information of each the 2nd STA.

A kind of situation, the second descending multi-user Frame also include configured information；Wherein, the finger Show information for indicating that currently only dispatching the 2nd STA receives the second descending multi-user Frame.

Another kind of situation, the second descending multi-user Frame also including the 3rd STA site information and It is sent to the data of the 3rd STA；3rd STA is that AP sends second descending multi-user The STA in addition to the 2nd STA corresponding to Frame.

Before 2nd STA receives the second descending multi-user Frame that the AP sends, also include： 2nd STA sends to the AP and confirms mark, described to confirm mark for identifying the 2nd STA Confirm the site information of reusable 2nd STA of the AP.

It is noted that the reuse mark in the present invention can be using in the first descending multi-user Frame Bit shared by " more data ", confirms that mark can be divided into two kinds of situations, and one kind is to carry confirming In frame, in such as OFDMA BA, it is possible to use in the control frame field in the MAC header of acknowledgement frame Bit shared by " more data ", it is also possible to use bit shared by " sequence ", or can also be Other positions, the present invention are without limitation, and another kind is carried in M-BA frame structures, specifically may be used To carry in public MAC header, such as using each the AID information in BA/ACK information fields In 1 bit in 4 bit TID domains, or other positions, the present invention is without limitation.

A kind of structural representation one of data transmission device that Figure 13 is provided for one embodiment of the invention, it is described Device is access point AP, including：Broadcast module 1301, for broadcasting the first trigger frame, described first Trigger frame includes：The site information of at least one first site STAs；Receiver module 1302, for receiving The first uplink data frames that each described STA sends, first uplink data frames include reusing mark Know, the mark that reuses is used for identifying whether STA transmission next time is needed using saved or renewal The site information of itself；The broadcast module 1301, is additionally operable to broadcast according to first upstream data The second trigger frame that frame determines, wherein described second trigger frame at least include frame type identification, and described the Two trigger frames are used at least triggering the 2nd STA, and the 2nd STA is at least institute in a STA State to reuse and be designated the website needed using the site information of itself that is saved or updating, wherein, institute State site information of second trigger frame not including the 2nd STA；The receiver module 1302, also uses In the second uplink data frames that reception the 2nd STA is sent based on second trigger frame.

The data transmission device that the present embodiment is provided, can be used for performing the method in embodiment illustrated in fig. 1 Step, which realizes that principle is similar with technique effect, and here is omitted.

A kind of situation, second trigger frame also include configured information；Wherein, the configured information is used for Indicate that currently only dispatching the 2nd STA sends second uplink data frames.

Another kind of situation, site information of second trigger frame also including the 3rd STA；Wherein, it is described Second trigger frame is used for triggering the 2nd STA and the 3rd STA the second uplink data frames of transmission； 3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, this time Send the STA of uplink data frames.

The first is possible, and second trigger frame includes：Federated resource configured information, each described second The site information of the mute association identification of STA and each the 3rd STA；Each the 2nd STA's is mute Association identification one Resource Block of correspondence, mark one Resource Block of correspondence of each the 3rd STA are described Mute association identification is the unappropriated association identifications of the AP.

Second possible, and second trigger frame includes：Second trigger frame also includes：Federated resource Configured information, at least one mute association identification information；The mute association identification information includes mute association identification, Also include the index of the index and/or the Resource Block being continuously disturbed of the corresponding Resource Block of the 2nd STA One or more, the mute association identification is the association identification that the AP is not yet assigned to website.

The third is possible, and second trigger frame includes：The federated resource configured information, mapping are indicated The site information of information and each the 3rd STA；The mapping indication information is third value and the 4th Second sequence of numerical value composition, each described third value one described Resource Block of correspondence, each described the Three numerical value correspond to the 2nd STA simultaneously, each one described Resource Block of the 4th numerical value correspondence, Each described 4th numerical value is while one the 3rd STA of correspondence.

A kind of structural representation two of data transmission device that Figure 14 is provided for one embodiment of the invention, broadcast Module 1301, receiver module 1302 and sending module 1303, wherein broadcast module 1301 and receiver module 1302 function described in embodiment corresponding to Figure 13, is repeated no more again.Sending module 1303, For sending to a STA each described, a STA is corresponding to confirm mark, the confirmation mark The whether reusable site information of itself of a STA is confirmed for identifying the AP；Wherein, institute AP described in stating the corresponding confirmation Identifications of the 2nd STA confirms the reusable stations of itself of the 2nd STA Point information.

A kind of structural representation three of data transmission device that Figure 15 is provided for one embodiment of the invention, it is described Device is the first site STA, including：Receiver module 1501, for receiving the of access point AP broadcast One trigger frame, first trigger frame include：The site information of at least one first site STAs；Send Module 1502, for sending the first uplink data frames to the AP, first uplink data frames include Mark is reused, it is described to reuse mark for identifying whether transmission STA next times is needed using The site information of itself for preserving or updating.

The data transmission device that the present embodiment is provided, can be used for performing the method in embodiment illustrated in fig. 7 Step, which realizes that principle is similar with technique effect, and here is omitted.

A kind of structural representation four of data transmission device that Figure 16 is provided for one embodiment of the invention, it is described Device is the 2nd STA, including：Receiver module 1601 and sending module 1602；Wherein：Receiver module 1601 and sending module 1602 function described in embodiment corresponding to Figure 15, repeat no more again, Additionally, the receiver module 1601, for receiving the second trigger frame of the AP broadcast, wherein described Second trigger frame at least includes frame type identification, and second trigger frame is used at least triggering the 2nd STA, Wherein, second trigger frame site information not including the 2nd STA；The sending module 1602, for sending the second uplink data frames based on second trigger frame to the AP.

A kind of situation, second trigger frame also include configured information；Wherein, the configured information is used for Indicate that currently only dispatching the 2nd STA sends second uplink data frames.

Another kind of situation, site information of second trigger frame also including the 3rd STA are wherein, described Second trigger frame is used for triggering the 2nd STA and the 3rd STA the second uplink data frames of transmission； 3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, this time Send the STA of uplink data frames.

Further, the receiver module 1601, is additionally operable to receive the confirmation mark that the AP sends. 2nd STA is corresponding confirm AP described in Identification confirm the 2nd STA it is reusable itself Site information.

A kind of structural representation five of data transmission device that Figure 17 is provided for one embodiment of the invention, it is described Device is access point AP, including：Sending module 1701, for sending the first descending multi-user Frame, The first descending multi-user Frame includes：The site information of at least one the oneth STA, reuse mark With the data sent to each STA, the reuse identified for identifying whether a STA needs Will be using the site information of itself that is saved or updating；The sending module 1701, is additionally operable to send out The second descending multi-user Frame is sent, wherein described second descending multi-user Frame at least includes：To every The data that individual 2nd STA sends, the second downstream data frame do not include：Each described 2nd STA Site information；2nd STA be the reuse in a STA be designated needs preserve or Update and using the website of the site information of itself for receiving.

A kind of situation, the second descending multi-user Frame also include configured information；Wherein, the finger Show information for indicating that currently only dispatching the 2nd STA receives the second descending multi-user Frame.

Another kind of situation, the second descending multi-user Frame also including the 3rd STA site information and It is sent to the data of the 3rd STA；3rd STA is that AP sends second descending multi-user The STA in addition to the 2nd STA corresponding to Frame.

The first is possible, and the second descending multi-user Frame includes：It is federated resource configured information, every The mute association identification of individual 2nd STA and the site information of each the 3rd STA；Each described One Resource Block of mute association identification correspondence of two STA, one money of mark correspondence of each the 3rd STA Source block, the mute association identification are the unappropriated association identifications of the AP.

Second possible, and the second descending multi-user Frame also includes：Federated resource configured information, At least one mute association identification information；The mute association identification information includes mute association identification, also including The index of the index and/or the Resource Block being continuously disturbed of the corresponding Resource Block of two STA and/or transmission are touched Send out frame Resource Block index one or more, the mute association identification is not yet assigned to station for the AP The association identification of point.

The third is possible, and the second descending multi-user Frame includes：Federated resource configured information, reflect Penetrate the site information of configured information and each the 3rd STA；The mapping indication information is third value With the second sequence of the 4th numerical value composition, each described third value one Resource Block of correspondence, described in each Third value corresponds to the 2nd STA simultaneously, each one Resource Block of the 4th numerical value correspondence, each 4th numerical value is while one the 3rd STA of correspondence.

Further, also include：Receiver module 1702, for receiving what each described 2nd STA sent Confirm mark；The confirmation of the 2nd STA identifies described for identifying the 2nd STA confirmations The site information of reusable 2nd STA of AP.

As second downstream data frame does not include：The site information of each the 2nd STA；So as to improve Resource utilization and data transmission efficiency.

A kind of structural representation six of data transmission device that Figure 18 is provided for one embodiment of the invention, it is described Device is a STA, including：Receiver module 1801, for receive access point AP transmission first under Row multi-user data frame, the first descending multi-user Frame include：The station of at least one the oneth STA Point information, reuse mark and and the data that send to a STA, the reuse identified for identifying Whether the first STA is needed using the site information of itself that is saved or updating；The reception mould Block 1801, for receiving the first descending multi-user Frame according to the site information of a STA In data division.Also include：Processing module 1802 is used for processing action performed by receiver module 1801 Corresponding code.

A kind of structural representation seven of data transmission device that Figure 19 is provided for one embodiment of the invention, it is described Device is the 2nd STA, and described at least one the oneth STA include that the 2nd STA, the 2nd STA are At least described reuse in first STA is designated to be needed using the station of itself that is saved or updating The website of point information；In addition to including similar to above-mentioned receiver module 1801 and processing module 1802, institute Receiver module 1801 is stated, is additionally operable to receive the second descending multi-user Frame that the AP sends, wherein The second descending multi-user Frame includes：To the data that the 2nd STA each described sends, described the Two downlink data frames do not include：The site information of each the 2nd STA.

A kind of situation, the second descending multi-user Frame also include configured information；Wherein, the finger Show information for indicating that currently only dispatching the 2nd STA receives the second descending multi-user Frame.

Another kind of situation, the second descending multi-user Frame also including the 3rd STA site information and It is sent to the data of the 3rd STA；3rd STA is that AP sends second descending multi-user The STA in addition to the 2nd STA corresponding to Frame.

Further, also include：Sending module 1803, confirms mark, institute for sending to the AP State the website for confirming that mark confirms reusable 2nd STA of the AP for identifying the 2nd STA Information.

As second downstream data frame does not include：The site information of each the 2nd STA；So as to improve Resource utilization and data transmission efficiency.

One of ordinary skill in the art will appreciate that：Realize all or part of step of above-mentioned each method embodiment Suddenly can be completed by the related hardware of programmed instruction.Aforesaid program can be stored in a computer can Read in storage medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And Aforesaid storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with store program codes Medium.

Finally it should be noted that：Various embodiments above is only illustrating technical scheme rather than right Its restriction；Although being described in detail to the present invention with reference to foregoing embodiments, this area it is common Technical staff should be understood：Which still can be modified to the technical scheme described in foregoing embodiments, Or equivalent is carried out to which part or all technical characteristic；And these modifications or replacement, and The scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution is not made.

Claims (48)

1. a kind of data transmission method, it is characterised in that include：

Access point AP broadcasts the first trigger frame, and first trigger frame includes：At least one first websites The site information of STA；

The AP receives the first uplink data frames that each described STA sends, and described first is up Frame includes reusing mark, described to reuse mark for identifying whether STA transmission next time needs to make With the site information of itself that is saved or updating；

The second trigger frame that AP broadcast is determined according to first uplink data frames, wherein described the Two trigger frames at least include frame type identification, and second trigger frame is used at least triggering the 2nd STA, 2nd STA be at least described reuse in a STA be designated needs using saved or The website of the site information of itself for updating, wherein, second trigger frame does not include the 2nd STA Site information；

The AP receives the second uplink data frames that the 2nd STA is sent based on second trigger frame.

2. method according to claim 1, it is characterised in that second trigger frame also includes referring to Show information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends described second Row Frame.

3. method according to claim 1, it is characterised in that second trigger frame also includes the The site information of three STA；

Wherein, second trigger frame is used for triggering the 2nd STA and the 3rd STA and sends the Two uplink data frames；

3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, The STA of uplink data frames is sent this time.

4. method according to claim 3, it is characterised in that second trigger frame includes：Connection Close the station of resource indication information, the mute association identification of each the 2nd STA and each the 3rd STA Point information；

One Resource Block of mute association identification correspondence of each the 2nd STA, each the 3rd STA's Mark one Resource Block of correspondence, the mute association identification is the unappropriated association identifications of the AP.

5. method according to claim 3, it is characterised in that second trigger frame also includes： Federated resource configured information, at least one mute association identification information；

The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA One or more of the index of index and/or the Resource Block being continuously disturbed, the mute association identification is institute State the association identification that AP is not yet assigned to website.

6. method according to claim 3, it is characterised in that second trigger frame includes：Institute State the site information of federated resource configured information, mapping indication information and each the 3rd STA；

The mapping indication information is the second sequence that third value and the 4th numerical value are constituted, and each described the Three numerical value correspond to a Resource Block, and each described third value corresponds to the 2nd STA simultaneously, Each one described Resource Block of the 4th numerical value correspondence, each described 4th numerical value is while one institute of correspondence State the 3rd STA.

7. the method according to any one of claim 1-6, it is characterised in that the AP broadcasts root According to before the second trigger frame that first uplink data frames determine, also include：

The AP sends the corresponding confirmation marks of a STA to a STA each described, described Confirm mark the whether reusable site information of itself of a STA is confirmed for identifying the AP；

Wherein, the 2nd STA is corresponding confirms that AP described in Identification confirms that the 2nd STA can Reuse the site information of itself.

8. a kind of data transmission method, it is characterised in that include：

The first trigger frame of access point AP broadcast is received, first trigger frame includes：At least one The site information of one site STA；

First STA sends the first uplink data frames, the first uplink data frames bag to the AP Reuse mark is included, it is described to reuse mark for identifying whether transmission STA next times is needed using The site information of itself that is saved or updating.

9. method according to claim 8, it is characterised in that

Described at least one the oneth STA include the 2nd STA, and the 2nd STA is described at least one the At least described reuse in one STA is designated to be needed using the site information of itself that is saved or updating Website；

2nd STA receives the second trigger frame of the AP broadcast, and wherein described second trigger frame is extremely Include frame type identification less, and second trigger frame is used at least triggering the 2nd STA, it is wherein, described Second trigger frame site information not including the 2nd STA；

2nd STA sends the second uplink data frames based on second trigger frame to the AP.

10. method according to claim 9, it is characterised in that

Second trigger frame also includes configured information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends described second Row Frame.

11. methods according to claim 9, it is characterised in that

Site information of second trigger frame also including the 3rd STA,

Wherein, second trigger frame is used for triggering the 2nd STA and the 3rd STA and sends the Two uplink data frames；

3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, The STA of uplink data frames is sent this time.

12. methods according to any one of claim 9-11, it is characterised in that the 2nd STA Before receiving the second trigger frame of the AP broadcast, also include：

2nd STA receives the confirmation mark that the AP sends；

2nd STA is corresponding to confirm that AP described in Identification confirms that the 2nd STA is reusable certainly The site information of body.

13. a kind of data transmission methods, it is characterised in that include：

Access point AP sends the first descending multi-user Frame, the first descending multi-user data frame packet Include：The site information of at least one the oneth STA, the data for reusing mark and sending to each STA, It is described reuse mark for identify a STA whether need using it is saved or update itself Site information；

The AP sends the second descending multi-user Frame, wherein described second descending multi-user Frame At least include：To the data that the 2nd STA each described sends, the second downstream data frame does not include： The site information of each the 2nd STA；During 2nd STA is described at least one the oneth STA The reuse be designated needs preserve or update and using the website of the site information of itself for receiving.

14. methods according to claim 13, it is characterised in that the second descending multi-user number Also include configured information according to frame；

Wherein, the configured information is used for indicating currently only dispatching the 2nd STA to receive second descending more User data frame.

15. methods according to claim 13, it is characterised in that

Site information of the second descending multi-user Frame also including the 3rd STA and it is sent to described the The data of three STA；

3rd STA be AP send corresponding to the second descending multi-user Frame except described the STA beyond two STA.

16. methods according to claim 15, it is characterised in that the second descending multi-user number Include according to frame：Federated resource configured information, the mute association identification of each the 2nd STA and each described in The site information of the 3rd STA；

One Resource Block of mute association identification correspondence of each the 2nd STA, each the 3rd STA's Mark one Resource Block of correspondence, the mute association identification is the unappropriated association identifications of the AP.

17. methods according to claim 15, it is characterised in that the second descending multi-user number Also include according to frame：Federated resource configured information, at least one mute association identification information；

The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA The index of the Resource Block of the index and/or transmission trigger frame of index and/or the Resource Block being continuously disturbed One or more, the mute association identification is the association identification that the AP is not yet assigned to website.

18. methods according to claim 15, it is characterised in that the second descending multi-user number Include according to frame：The website letter of federated resource configured information, mapping indication information and each the 3rd STA Breath；

The mapping indication information is the second sequence that third value and the 4th numerical value are constituted, and each described the Three numerical value, one Resource Block of correspondence, each described third value is while one the 2nd STA of correspondence, each institute The 4th numerical value one Resource Block of correspondence is stated, each described 4th numerical value is while one the 3rd STA of correspondence.

19. methods according to any one of claim 13-18, it is characterised in that the AP sends Before second descending multi-user Frame, also include：

The AP receives the confirmation mark that each described 2nd STA sends；

The confirmation of the 2nd STA is identified and confirms that the AP can be again for identifying the 2nd STA With the site information of the 2nd STA.

20. a kind of data transmission methods, it is characterised in that include：

The first descending multi-user Frame that first site STA reception access point AP sends, described first Descending multi-user Frame includes：The site information of at least one the oneth STA, reuse are identified and and to institute The data of STA transmissions are stated, the reuse is identified for identifying whether a STA needs to use The site information of itself that is saved or updating；

First STA receives the first descending multi-user number according to the site information of a STA According to the data division in frame.

21. methods according to claim 20, it is characterised in that

Described at least one the oneth STA include that the 2nd STA, the 2nd STA are a STA In it is at least described reuse be designated need using it is saved or update the site information of itself station Point；

2nd STA receives the second descending multi-user Frame that the AP sends, and wherein described the Two descending multi-user Frames include：To the data that the 2nd STA each described sends, described second is descending Frame does not include：The site information of each the 2nd STA.

22. methods according to claim 21, it is characterised in that

The second descending multi-user Frame also includes configured information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA receives under described second Row multi-user data frame.

23. methods according to claim 21, it is characterised in that

Site information of the second descending multi-user Frame also including the 3rd STA and it is sent to described the The data of three STA；

3rd STA be AP send corresponding to the second descending multi-user Frame except described the STA beyond two STA.

24. methods according to any one of claim 21-23, it is characterised in that the 2nd STA Before receiving the second descending multi-user Frame that the AP sends, also include：

2nd STA sends to the AP and confirms mark, described to confirm mark for identifying described the Two STA confirm the site information of reusable 2nd STA of the AP.

A kind of 25. data transmission devices, the device are access point AP, it is characterised in that included：

Broadcast module, for broadcasting the first trigger frame, first trigger frame includes：At least one first The site information of site STA；

Receiver module, for receiving the first uplink data frames that each described STA sends, described the One uplink data frames include reusing mark, described to reuse mark for whether identifying STA transmission next time Need using the site information of itself that is saved or updating；

The broadcast module, is additionally operable to broadcast the second trigger frame determined according to first uplink data frames, Wherein described second trigger frame at least includes frame type identification, and second trigger frame is used at least triggering 2nd STA, the 2nd STA are that at least described reuse in a STA is designated and needs to use The website of the site information of itself of saved or renewal, wherein, second trigger frame does not include institute State the site information of the 2nd STA；

The receiver module, is additionally operable to receive that the 2nd STA is sent based on second trigger frame the Two uplink data frames.

26. devices according to claim 25, it is characterised in that second trigger frame also includes Configured information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends described second Row Frame.

27. devices according to claim 25, it is characterised in that second trigger frame also includes The site information of the 3rd STA；

Wherein, second trigger frame is used for triggering the 2nd STA and the 3rd STA and sends the Two uplink data frames；

3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, The STA of uplink data frames is sent this time.

28. devices according to claim 27, it is characterised in that second trigger frame includes： Federated resource configured information, the mute association identification of each the 2nd STA and each the 3rd STA's Site information；

One Resource Block of mute association identification correspondence of each the 2nd STA, each the 3rd STA's Mark one Resource Block of correspondence, the mute association identification is the unappropriated association identifications of the AP.

29. devices according to claim 27, it is characterised in that second trigger frame includes： Federated resource configured information, at least one mute association identification information；

The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA One or more of the index of index and/or the Resource Block being continuously disturbed, the mute association identification is institute State the association identification that AP is not yet assigned to website.

30. devices according to claim 27, it is characterised in that second trigger frame includes： The site information of the federated resource configured information, mapping indication information and each the 3rd STA；

The mapping indication information is the second sequence that third value and the 4th numerical value are constituted, and each described the Three numerical value correspond to a Resource Block, and each described third value corresponds to the 2nd STA simultaneously, Each one described Resource Block of the 4th numerical value correspondence, each described 4th numerical value is while one institute of correspondence State the 3rd STA.

31. devices according to any one of claim 25-30, it is characterised in that also include：

Sending module, for sending to a STA each described, a STA is corresponding to confirm mark, It is described to confirm mark for identifying the whether reusable website letters of itself of the AP confirmations the first STA Breath；

Wherein, the 2nd STA is corresponding confirms that AP described in Identification confirms that the 2nd STA can Reuse the site information of itself.

A kind of 32. data transmission devices, described device are the first site STA, it is characterised in that included：

Receiver module, for receiving the first trigger frame of access point AP broadcast, the first trigger frame bag Include：The site information of at least one first site STAs；

Sending module, for sending the first uplink data frames, first uplink data frames to the AP It is including mark is reused, described to reuse mark for identifying whether transmission STA next times needs to use The site information of itself that is saved or updating.

33. devices according to claim 32, described device are the 2nd STA, it is characterised in that Including：Receiver module and sending module；

Described at least one the oneth STA include the 2nd STA, and the 2nd STA is described at least one the At least described reuse in one STA is designated to be needed using the site information of itself that is saved or updating Website；

The receiver module, for receiving the second trigger frame of the AP broadcast, wherein described second touches Sending out frame at least includes frame type identification, and second trigger frame is used at least triggering the 2nd STA, wherein, Second trigger frame site information not including the 2nd STA；

The sending module, for sending the second upstream data based on second trigger frame to the AP Frame.

34. devices according to claim 33, it is characterised in that

Second trigger frame also includes configured information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA sends described second Row Frame.

35. devices according to claim 33, it is characterised in that

Site information of second trigger frame also including the 3rd STA,

Wherein, second trigger frame is used for triggering the 2nd STA and the 3rd STA and sends the Two uplink data frames；

3rd STA is that the AP is triggered in addition to the 2nd STA by second trigger frame, The STA of uplink data frames is sent this time.

36. devices according to any one of claim 33-35, it is characterised in that

The receiver module, is additionally operable to receive the confirmation mark that the AP sends；

2nd STA is corresponding to confirm that AP described in Identification confirms that the 2nd STA is reusable certainly The site information of body.

A kind of 37. data transmission devices, described device are access point AP, it is characterised in that included：

Sending module, for sending the first descending multi-user Frame, the first descending multi-user data Frame includes：The site information of at least one the oneth STA, reuse are identified and to each STA transmission Data, the reuse are identified for identifying whether a STA is needed using saved or renewal The site information of itself；

The sending module, is additionally operable to send the second descending multi-user Frame, and wherein described second is descending Multi-user data frame at least includes：To the data that the 2nd STA each described sends, second time line number Do not include according to frame：The site information of each the 2nd STA；2nd STA is a STA In the reuse be designated needs preserve or update and using the station of the site information of itself for receiving Point.

38. devices according to claim 37, it is characterised in that the second descending multi-user number Also include configured information according to frame；

Wherein, the configured information is used for indicating currently only dispatching the 2nd STA to receive second descending more User data frame.

39. devices according to claim 37, it is characterised in that

Site information of the second descending multi-user Frame also including the 3rd STA and it is sent to described the The data of three STA；

3rd STA be AP send corresponding to the second descending multi-user Frame except described the STA beyond two STA.

40. devices according to claim 39, it is characterised in that the second descending multi-user number Include according to frame：Federated resource configured information, the mute association identification of each the 2nd STA and each described in The site information of the 3rd STA；

One Resource Block of mute association identification correspondence of each the 2nd STA, each the 3rd STA's Mark one Resource Block of correspondence, the mute association identification is the unappropriated association identifications of the AP.

41. devices according to claim 39, it is characterised in that the second descending multi-user number Also include according to frame：Federated resource configured information, at least one mute association identification information；

The mute association identification information includes mute association identification, also including the corresponding Resource Block of the 2nd STA The index of the Resource Block of the index and/or transmission trigger frame of index and/or the Resource Block being continuously disturbed One or more, the mute association identification is the association identification that the AP is not yet assigned to website.

42. devices according to claim 39, it is characterised in that the second descending multi-user number Include according to frame：The website letter of federated resource configured information, mapping indication information and each the 3rd STA Breath；

The mapping indication information is the second sequence that third value and the 4th numerical value are constituted, and each described the Three numerical value, one Resource Block of correspondence, each described third value is while one the 2nd STA of correspondence, each institute The 4th numerical value one Resource Block of correspondence is stated, each described 4th numerical value is while one the 3rd STA of correspondence.

43. devices according to any one of claim 37-42, it is characterised in that also include：

Receiver module, for receiving the confirmation mark that each described 2nd STA sends；

The confirmation of the 2nd STA is identified and confirms that the AP can be again for identifying the 2nd STA With the site information of the 2nd STA.

A kind of 44. data transmission devices, described device are a STA, it is characterised in that included：

Receiver module, for receiving the first descending multi-user Frame of access point AP transmissions, described the One descending multi-user data frame includes：The site information of at least one the oneth STA, reuse mark and and to The data that first STA sends, the reuse are identified for identifying whether a STA needs to make With the site information of itself that is saved or updating；

The receiver module is descending more for receiving described first according to the site information of a STA Data division in user data frame.

45. devices according to claim 44, described device are the 2nd STA, it is characterised in that

Described at least one the oneth STA include that the 2nd STA, the 2nd STA are a STA In it is at least described reuse be designated need using it is saved or update the site information of itself station Point；

The receiver module, is additionally operable to receive the second descending multi-user Frame that the AP sends, its Described in the second descending multi-user Frame include：It is to the data that the 2nd STA each described sends, described Second downstream data frame does not include：The site information of each the 2nd STA.

46. devices according to claim 45, it is characterised in that

The second descending multi-user Frame also includes configured information；

Wherein, the configured information is used for indicating that currently only dispatching the 2nd STA receives under described second Row multi-user data frame.

47. devices according to claim 45, it is characterised in that

Site information of the second descending multi-user Frame also including the 3rd STA and it is sent to described the The data of three STA；

3rd STA be AP send corresponding to the second descending multi-user Frame except described the STA beyond two STA.

48. devices according to any one of claim 45-47, it is characterised in that also include：

Sending module, confirms mark for sending to the AP, and the confirmation mark is described for identifying 2nd STA confirms the site information of reusable 2nd STA of the AP.