CN104065452B - A kind of wireless communications method, relevant device and system - Google Patents
A kind of wireless communications method, relevant device and system Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of wireless communications method, including：Generation group polymerisation medium MAC layer protocol Data Unit A MPDU data frames, wherein described group of A MPDU data frame includes the mark of group first and multiple A MPDU sub-frame datas；Described group first identifies for indicating the group A MPDU data belonging to the multiple A MPDU sub-frame datas；In the way of sending one group of A MPDU data frame at interval of the default frame period time, every group of A MPDU data frame of generation is sent to data receiver.The invention also discloses relevant device and system, using the present invention, reduce the BA interaction times of data receiver and data sending terminal, greatly reduce the quantity forwarded of BA message frames, solve in the prior art as the increase of BA message number of frames causes fixed overhead big, the low technical problem of rational spectrum utilization rate effectively controls the quantity forwarded of BA message frames, fixed overhead is greatly reduced, the effective rate of utilization of frequency spectrum is improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of wireless communications method, relevant device and system.
Background technology
With the progress of ICT, various wireless communication technologys have been developed recently.In these radio communications
Among technology, WLAN (WLAN) is that one kind can be by using portable terminal (such as intelligent mobile terminal, flat board electricity
Brain, portable media player etc.) in family or enterprise or provide special services region in wirelessly on
The technology of net.
Availability of frequency spectrum efficiency in existing Wireless Fidelity (WIreless Fidelity, Wi-Fi) technology is people pass
The hot issue of note；The competition mechanism and fixed overhead of existing Wi-Fi technology are all to influence the Wi-Fi technology availability of frequency spectrum not
High factor, the principle schematic of Wi-Fi data interactions in the prior art as shown in Figure 1, each Wi-Fi equipment completes data
After interaction, data receiver can reply block and confirm that (Block ACK, BA) message frame, to data sender, represents what is received
The state of packet, wherein being represented to be correctly received with " 1 ", " 0 " represents not to be correctly received.
However, in BA message frames containing physical header, medium access control (Medium Access Control, MAC) head with
And short interFrameGap (Short Inter-Frame Space, SIFS), these are all fixed overheads；With BA message number of frames
Increase, the efficiency of MAC layer will be leveraged, so as to have impact on the effective rate of utilization of Wi-Fi frequency spectrums.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is there is provided a kind of wireless communications method, relevant device and is
System, effectively controls the quantity forwarded of BA message frames, improves the effective rate of utilization of frequency spectrum.
In a first aspect, the embodiments of the invention provide a kind of wireless communications method, including：
Generation group polymerisation medium MAC layer protocol Data Unit A-MPDU data frames, wherein described group of A-MPDU data
Frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first identifies for indicating the multiple A-MPDU subframes
Group A-MPDU data frames belonging to data；
In the way of sending a group A-MPDU data frame at interval of the default frame period time, by each group of A- of generation
MPDU data frames are sent to data receiver.
With reference in a first aspect, in the first possible implementation, the generation group A-MPDU data frames include：
Group field is set in the A-MPDU data frame formats of group A-MPDU data frames, and the group field contains described group of A-
Each self-corresponding group first of MPDU data frames are identified.
With reference in a first aspect, in second of possible implementation, the generation group A-MPDU data frames include：
Group field is set in the A-MPDU sub-frame data forms of group A-MPDU data frames, the group field contains the A-
Corresponding group first of MPDU sub-frame datas are identified.
With reference to second of possible implementation of first aspect, in the third possible implementation, described group of word
Section is arranged in the filling Pad subdomains of A-MPDU sub-frame data forms.
With reference in a first aspect, either second of the first possible implementation or first aspect of first aspect
Possible implementation, or first aspect the third possible implementation, it is raw in the 4th kind of possible implementation
Into group A-MPDU data frames at least include two group A-MPDU data frames.
With reference in a first aspect, either second of the first possible implementation or first aspect of first aspect
Possible implementation, or first aspect the third possible implementation, in the 5th kind of possible implementation,
It is described that every group of A-MPDU data frame of generation is sent to after data receiver, in addition to：
Chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes being used to represent institute
State the confirmation of every group of A-MPDU data frame receipt state.
With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, it is described
After chunk confirmation is received after the frame period time, in addition to：
The chunk confirmation is parsed, the mark of group second and its corresponding data receiving status information is obtained；Described group
Second identifies for indicating the group A-MPDU data frames belonging to the A-MPDU sub-frame datas that the data receiver is received, described group
The corresponding data receiving status information of second mark is used to indicate described group of A-MPDU data frame of the data receiver reception
State confirmation information.
Second aspect, the embodiments of the invention provide a kind of wireless communications method, including：
The group polymerisation medium MAC layer protocol Data Unit A-MPDU data frames that data sending terminal is sent are received, wherein
Described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first identifies for indicating institute
State the group A-MPDU data frames belonging to multiple A-MPDU sub-frame datas.
With reference to second aspect, in the first possible implementation, the group A- sent in the reception data sending terminal
After MPDU data frames, in addition to：
Chunk confirmation is generated according to data receiving state, the chunk confirmation includes being used to represent described each
The confirmation of group A-MPDU data frame receipt states；
After the group A-MPDU data frames of data sending terminal transmission have been received, to institute after the default frame period time is spaced
State data sending terminal and send the chunk confirmation.
With reference to the first possible implementation of second aspect, in second of possible implementation, the basis
Data receiving state generation chunk confirmation includes：
The group A-MPDU data frames received are parsed, the group in described group of A-MPDU data frame first is obtained and identifies；
Identified according to the reception state of described group of A-MPDU data frame of reception and described group first, in block confirms frame format
Setting group second is identified and its corresponding data receiving status information；Described group second identifies for indicating the data receiver
Group A-MPDU data frames belonging to the A-MPDU sub-frame datas of reception, described group second identifies corresponding data receiving status information
For indicating that the data receiver receives the state confirmation information of described group of A-MPDU data frame.
With reference to second of possible implementation of second aspect, in the third possible implementation, described group
Two marks are arranged in the reservation bit position that block confirms control domain.
With reference to second of possible implementation of second aspect, in the 4th kind of possible implementation, described group
The corresponding data receiving status information of two marks is arranged on the block in block confirmation domain and confirmed in message bit pattern.
The third aspect, the embodiments of the invention provide a kind of wireless transmission device, including：
Group A-MPDU data frame generation modules, for generation group polymerisation medium MAC layer protocol Data Unit A-MPDU
Data frame, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first is marked
Know for indicating the group A-MPDU data frames belonging to the multiple A-MPDU sub-frame datas；
Data transmission blocks, for the side at interval of one group A-MPDU data frame of transmission of default frame period time
Formula, data receiver is sent to by each group of A-MPDU data frame of generation.
With reference to the third aspect, in the first possible implementation, described group of A-MPDU data frame generation module includes：
First group field setting unit, for the setting group word in the A-MPDU data frame formats of group A-MPDU data frames
Section, the group field contains each self-corresponding group first of described group of A-MPDU data frame and identified.
With reference to the third aspect, in second of possible implementation, described group of A-MPDU data frame generation module includes：
Second group field setting unit, for the setting group word in the A-MPDU sub-frame data forms of group A-MPDU data frames
Section, the group field contains corresponding group first of the A-MPDU sub-frame datas and identified.
With reference to second of possible implementation of the third aspect, in the third possible implementation, described group of word
Section is arranged in the filling Pad subdomains of A-MPDU sub-frame data forms.
With reference to the third aspect, either second of the possible implementation of the first of the third aspect or the third aspect
Possible implementation, or the third aspect the third possible implementation, in the 4th kind of possible implementation, institute
Stating a group group A-MPDU data frames for A-MPDU data frames generation module generation at least includes two group A-MPDU data frames.
With reference to the third aspect, either second of the possible implementation of the first of the third aspect or the third aspect
Possible implementation, or the third aspect the third possible implementation, in the 5th kind of possible implementation, also
Including：
Chunk confirms receiving module, for sending each group of A-MPDU data frame of generation in the data transmission blocks
After data receiver, chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes
Confirmation for representing each group of A-MPDU data frame receipt states.
With reference to the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation, in addition to：
Chunk confirms parsing module, confirms the chunk confirmation that receiving module is received for parsing the chunk, obtains
The mark of group second and its corresponding data receiving status information；Described group second identifies for indicating that the data receiver is received
A-MPDU sub-frame datas belonging to group A-MPDU data frames, described group second identifies corresponding data receiving status information and is used for
Indicate that the data receiver receives the state confirmation information of described group of A-MPDU data frame.
Fourth aspect, the embodiment of the present invention provides a kind of radio receiver, including：
Data reception module, the group polymerisation medium MAC layer protocol Data Unit for receiving data sending terminal transmission
A-MPDU data frames, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group
First identifies for indicating the group A-MPDU data frames belonging to the multiple A-MPDU sub-frame datas.
With reference to fourth aspect, in the first possible implementation, in addition to：
Chunk confirmation generation module, for generating chunk confirmation according to data receiving state, the chunk is true
Recognize the confirmation that information includes being used to represent each group of A-MPDU data frame receipt states；
Chunk confirms sending module, the group A-MPDU for having received data sending terminal transmission in the data reception module
After data frame, the chunk confirmation is sent to the data sending terminal after the default frame period time is spaced.
With reference to the first possible implementation of fourth aspect, in second of possible implementation, the chunk
Confirmation generation module includes：
Group A-MPDU data resolution units, for parsing the group A-MPDU data frames received, obtain described group of A-MPDU
Group first in data frame is identified；
Status information setting unit, for the reception state according to described group of A-MPDU data frame of reception and described group first
Mark, setting group second is identified and its corresponding data receiving status information in block confirms frame format；Described group second identifies
For indicating the group A-MPDU data frames belonging to the A-MPDU sub-frame datas that the data receiver is received, described group second identifies
Corresponding data receiving status information is used for the state confirmation for indicating that the data receiver receives described group of A-MPDU data frame
Information.
With reference to second of possible implementation of fourth aspect, in the third possible implementation, described group
Two marks are arranged in the reservation bit position that block confirms control domain.
With reference to second of possible implementation of fourth aspect, in the 4th kind of possible implementation, described group
The corresponding data receiving status information of two marks is arranged on the block in block confirmation domain and confirmed in message bit pattern.
5th aspect, the embodiment of the present invention provides a kind of wireless communication system, including data sending device and data receiver
Device, wherein
The data sending device be such as the third aspect, either the possible implementation of the first of the third aspect or
Second of possible implementation of the third aspect, or the wireless transmission in the third possible implementation of the third aspect
Equipment；
The data sink be such as fourth aspect, either the possible implementation of the first of fourth aspect or
Second of possible implementation of fourth aspect, or the wireless receiving in the third possible implementation of fourth aspect
Equipment.
With reference to the 5th aspect, in the first possible implementation, the wireless transmission device also includes：
Chunk confirms receiving module, for sending each group of A-MPDU data frame of generation in the data transmission blocks
After data receiver, chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes
Confirmation for representing each group of A-MPDU data frame receipt states；
Chunk confirms parsing module, confirms the chunk confirmation that receiving module is received for parsing the chunk, obtains
The mark of group second and its corresponding data receiving status information；Described group second identifies for indicating that the data receiver is received
A-MPDU sub-frame datas belonging to group A-MPDU data frames, described group second identifies corresponding data receiving status information and is used for
Indicate that the data receiver receives the state confirmation information of described group of A-MPDU data frame.
By implementing the embodiment of the present invention, generation group A-MPDU data frames, and to be sent out at interval of the default frame period time
The mode of one group of A-MPDU data frame is sent, every group of A-MPDU data frame of generation is sent to data receiver, data are reduced
The BA interaction times of receiving terminal and data sending terminal, greatly reduce the quantity forwarded of BA message frames, solve in the prior art
As the increase of BA message number of frames causes fixed overhead big, the low technical problem of rational spectrum utilization rate effectively controls BA
The quantity forwarded of message frame, greatly reduces fixed overhead, improves the effective rate of utilization of frequency spectrum.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the principle schematic of Wi-Fi data interactions in the prior art；
Fig. 2 is the schematic flow sheet for the wireless communications method that the present invention is provided；
Fig. 3 is the principle schematic for the wireless communications method that the present invention is provided；
Fig. 4 is the structural representation for the group A-MPDU data frame formats that the present invention is provided；
Fig. 5 is the structural representation for the A-MPDU sub-frame formats that the present invention is provided；
Fig. 6 is the schematic flow sheet of another embodiment for the wireless communications method that the present invention is provided；
Fig. 7 is the schematic flow sheet of another embodiment for the wireless communications method that the present invention is provided；
Fig. 8 is the structural representation for the chunk confirmation message frame format that the present invention is provided；
Fig. 9 is the structural representation that the block that the present invention is provided confirms control domain form；
Figure 10 is the structural representation for the block confirmation domain form that the present invention is provided；
Figure 11 is the structural representation for the wireless transmission device that the present invention is provided；
Figure 12 is the structural representation of another embodiment for the wireless transmission device that the present invention is provided；
Figure 13 is the structural representation for the radio receiver that the present invention is provided；
Figure 14 is the structural representation for the chunk confirmation generation module that the present invention is provided；
Figure 15 is the structural representation for the wireless communication system that the present invention is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It should be noted that the term used in embodiments of the present invention is the mesh only merely for description specific embodiment
, and it is not intended to be limiting the present invention." one of singulative used in the embodiment of the present invention and appended claims
Kind ", " described " and "the" are also intended to including most forms, unless context clearly shows that other implications.It is also understood that this
Term "and/or" used herein refers to and comprising one or more associated any or all possible groups that list project
Close.
It is the schematic flow sheet for the wireless communications method that the present invention is provided referring to Fig. 2, this method includes：
Step S200：Generation group polymerisation medium MAC layer protocol Data Unit (A-MPDU, Aggregation-MAC
Protocol Data Unit) data frame, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU
Frame data；Described group first identifies for indicating the group A-MPDU data belonging to the multiple A-MPDU sub-frame datas；
Specifically, for example, group first is designated " 00000001 ", it indicates that the plurality of A-MPDU sub-frame datas belong to the 1st
The group A-MPDU data frames of group；If group first is designated " 00000011 ", it indicates that the plurality of A-MPDU sub-frame datas belong to the 3rd
The group A-MPDU data frames of group；
It will be appreciated that before step S200, data sending terminal is consulted with data receiver both sides needs transmission group A-
The group number and the quantity of every group of A-MPDU data frame packets subframe containing A-MPDU of MPDU data frames.
Step S202：In the way of sending one group of A-MPDU data frame at interval of the default frame period time, by generation
Every group of A-MPDU data frame is sent to data receiver.
Specifically, the principle schematic for the wireless communications method that the present invention as shown in Figure 3 is provided, data sending terminal is in hair
Send and finish after one group of A-MPDU data frame, be spaced default frame period time SIFS (short interframe space), then
Another set A-MPDU data frames are sent, and according to this at interval of one group of A-MPDU data frame of transmission of default frame period time
Mode, all group A-MPDU data frames of production are sent to data receiver.That is, data receiver not often receives one
Group A-MPDU data frames, just to data sending terminal transmission block confirmation message frame, but continuously receive multigroup A-MPDU data frames
Afterwards, then to data sending terminal chunk confirmation message frame is sent.It should be noted that the group A-MPDU generated in the embodiment of the present invention
Data frame can at least include two groups of A-MPDU data frames.
Further, the scheme of generation group A-MPDU data frames can have following two schemes, i.e. this hair in step S200
It is bright to provide two schemes to set the group first in group A-MPDU data frames to identify：
Scheme 1：Group field is set in the A-MPDU data frame formats of group A-MPDU data frames, and the group field is containing
Each self-corresponding group first of group A-MPDU data frames are stated to identify.
Specifically, the structural representation for the group A-MPDU data frame formats that the present invention as shown in Figure 4 is provided, can be existing
Group field is added in the group A-MPDU data frame formats of technology, wherein group field can be, but not limited to be arranged on start region, i.e.,
Before A-MPDU sub-frame datas；For example, can represent that the group first of group field is identified with 1 byte, group first is identified
" 00000001 " represents the 1st group of A-MPDU data frames, and this group of A-MPDU data frame packet contains following n A-MPDU subframes；
Scheme 2：Group field is set in the A-MPDU sub-frame data forms of group A-MPDU data frames, the group field contains
Corresponding group first of the A-MPDU sub-frame datas are identified.
Specifically, the structural representation for the A-MPDU sub-frame formats that the present invention as shown in Figure 5 is provided, can be in existing skill
Group field is set in the A-MPDU sub-frame formats of art, and wherein group field can be, but not limited to be arranged on A-MPDU sub-frame data forms
Filling Pad subdomains in, you can with using Pad subdomains it is some or all of come represent in group field, Fig. 5 with using three/
One Pad subdomains (1 byte) come represent group field be example, for example, the group first of group field can be represented with 1 byte
Mark, the mark of group first " 00000001 " represents the 1st group of A-MPDU data frames, and this group of A-MPDU data frame packet is containing following n
A-MPDU subframes.
Yet further, the flow signal of another embodiment for the wireless communications method that the present invention as shown in Figure 6 is provided
Figure, including：
Step S600：Generation group polymerisation medium MAC layer protocol Data Unit (A-MPDU, Aggregation-MAC
Protocol Data Unit) data frame, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU
Frame data；Described group first identifies for indicating the group A-MPDU data belonging to the multiple A-MPDU sub-frame datas；
Step S602：In the way of sending one group of A-MPDU data frame at interval of the default frame period time, by generation
Every group of A-MPDU data frame is sent to data receiver；
Specifically, step S600 and step S602 may be referred to retouching for step S200 and step S202 in above-described embodiment
State, repeat no more here.
Step S604：Chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes
Confirmation for representing every group of A-MPDU data frame receipt states；
Specifically, data receiver, can be according to described when receiving the group A-MPDU data frames that data sending terminal is sent
The reception state generation chunk confirmation message frame of multigroup A-MPDU data frames, the chunk confirmation message frame is identified comprising group second
And its corresponding data receiving status information, one group of A-MPDU data frame that a mark correspondence of group second is received, the data
Receiving status information is used for the receiving status information for indicating the group A-MPDU data frames that described group second mark correspondence is received.
Step S606：The chunk confirmation is parsed, the mark of group second and its corresponding data receiving state letter is obtained
Breath；Described group second identifies for indicating the group A-MPDU data belonging to the A-MPDU sub-frame datas that the data receiver is received
Frame, described group second identifies corresponding data receiving status information and is used to indicate that the data receiver receives described group of A-MPDU
The state confirmation information of data frame.
Specifically, data sending terminal is in the parsing chunk confirmation message frame, obtains described group of A-MPDU data frame
After receiving status information, according to the receiving status information of described group of A-MPDU data frame, to the group A- not being correctly received
MPDU data frames are resend.It will be appreciated that data sending terminal is held consultation in advance with data receiver both sides, then
Data sending terminal can parse the mark of the group of each in the chunk confirmation message frame of reception second and corresponding data receiver
Status information, so as to know which group A-MPDU data frame is not correctly received, it is necessary to be resend.
Below correspondingly, the flow of another embodiment for the wireless communications method that the present invention with reference to shown in Fig. 7 is provided is shown
It is intended to, technical scheme is described from data receiver, this method includes：
Step S700：Receive the group polymerisation medium MAC layer protocol Data Unit A-MPDU numbers that data sending terminal is sent
According to frame, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first identifies
For indicating the group A-MPDU data frames belonging to the multiple A-MPDU sub-frame datas；
The embodiment can also include step S702：Chunk confirmation, the chunk are generated according to data receiving state
Confirmation includes the confirmation for being used to represent every group of A-MPDU data frame receipt states；
Step S704：After the group A-MPDU data frames of data sending terminal transmission have been received, default frame period is being spaced
After time the chunk confirmation is sent to the data sending terminal.
Specifically, step S702 can be specifically included：The group A-MPDU data frames received are parsed, described group of A- is obtained
Group first in MPDU data frames is identified；Marked according to the reception state of described group of A-MPDU data frame of reception and described group first
Know, setting group second is identified and its corresponding data receiving status information in block confirms frame format；Described group second mark is used
The group A-MPDU data frames belonging to A-MPDU sub-frame datas received in the instruction data receiver, described group second mark pair
The data receiving status information answered is used for the state confirmation letter for indicating that the data receiver receives described group of A-MPDU data frame
Breath.
Further, one group of A-MPDU data frame that a mark correspondence of group second is received, for example, organize second and be designated
" 0001 " represents that the group A-MPDU data frames received are first group of A-MPDU data frame, and group second is designated " 0010 " and represents reception
Group A-MPDU data frames be second group of A-MPDU data frame, that is, organize the second mark and be also used for representing that each group A-MPDU data frames connect
The order of receipts；The group second identify corresponding data receiving status information be used for indicate reception group A-MPDU data frames reception
Whether status information, including this group of A-MPDU data frame are correctly received.
Further, in step S702, the chunk confirmation message frame format of data receiver generation may be referred to existing skill
Block confirmation message frame format in art, the structural representation for the chunk confirmation message frame format that the present invention as shown in Figure 8 is provided,
Wherein the mark of group second can be arranged in the reservation bit position that block confirms control domain, the block that the present invention as shown in Figure 9 is provided
Confirm the structural representation of control domain form, block confirms that the reservation bit position of 9 bytes of control domain can be for expression group the
Two marks, such as reservation bit position are " 000000001 ", then it represents that the group A-MPDU data frames of reception are first group of A-MPDU number
According to frame, and for example reservation bit position is " 000000011 ", then it represents that the group A-MPDU data frames of reception are the 3rd group of A-MPDU data
Frame, etc.；
Yet further, the data receiving status information can be specifically for indicating the group that the group second mark correspondence is received
The receiving status information of multiple data bursts in A-MPDU data frames；When data burst is correctly connect in group A-MPDU data frames
Receive, then the first preset value is correspondingly arranged in the data receiving status information；When data burst is not in group A-MPDU data frames
It is correctly received, then the second preset value is correspondingly arranged in the data receiving status information.First preset value can be
" 1 ", second preset value can be " 0 "；Or in turn, first preset value is " 0 ", second preset value is " 1 ", as long as
Communicating pair provisions for negotiations is good.
Yet further, the data receiving status information can be arranged on the block confirmation message bit pattern in block confirmation domain
In.The structural representation for the block confirmation domain form that the present invention as shown in Figure 10 is provided, can pass through block confirmation domain
Block in BA Information field confirms message bit pattern Block Ack Bitmap to represent data receiving status information；
The embodiment of the present invention is by combining the mark of group second and the corresponding data receiving status information of the mark of group second, to represent to receive
Whether data are correctly received, and give one example illustrates below：
If, group second is designated in the group A-MPDU data frames of " 000000001 " (i.e. first group A-MPDU data frame)
Include 10 data bursts, the group second identifies " 000000001 " corresponding data receiving status information and is
" 1110011100 " (i.e. information in Block Ack Bitmap), " 1 " wherein in data receiving status information indicates data
It is correctly received, " 0 " indicates that data are not correctly received, then the data receiving status information represents the first group of A- received
In MPDU data frames first, second, the 6th and the 7th data burst be not correctly received, it is necessary to notify data sending terminal
Retransmitted.
It will be appreciated that when receiving multigroup A-MPDU data frames, can be identified and its right by setting multiple groups second
The data receiving status information answered is represented；The chunk confirmation message frame format of generation of the embodiment of the present invention is not limited to Fig. 8, Fig. 9
It with the form shown in Figure 10, can according to demand carry out self-defined, such as can increase a region newly in chunk confirmation message frame
Identified for mark group second and its corresponding data receiving status information, as long as communicating pair is consulted；
Again it will be appreciated that by the chunk confirmation message frame of the invention generated, i.e., by existing Wi-Fi standards
Add enrolled concept in BA frame formats, reception state that can be simultaneously to the multigroup data frame received of data sending terminal transmission is true
Recognize information, but fixed overhead (such as physical header, MAC header and SIFS, DIFS etc.) is greatly reduced, such as according to existing
Wi-Fi standards, if the group A-MPDU data frames that data receiver often receives 1MB need to send 1 BA to data sending terminal
When, it is assumed that data receiver will receive 9MB group A-MPDU data frames, then need to send 9 BA to data sending terminal；And this
Inventive embodiments are by generating chunk confirmation message frame, it is only necessary to send 1 chunk confirmation message frame (organizing BA message frames),
Fixed overhead reduces 8/9.
By implementing the embodiment of the present invention, generation group A-MPDU data frames, and to be sent out at interval of the default frame period time
The mode of one group of A-MPDU data frame is sent, every group of A-MPDU data frame of generation is sent to data receiver, data receiver
Chunk confirmation message frame is generated according to the reception state of multi-group data frame, and is sent to data sending terminal, so as to reduce data
The BA interaction times of receiving terminal and data sending terminal, greatly reduce the quantity forwarded of BA message frames, solve in the prior art
As the increase of BA message number of frames causes fixed overhead big, the low technical problem of rational spectrum utilization rate effectively controls BA
The quantity forwarded of message frame, greatly reduces fixed overhead, improves the effective rate of utilization of frequency spectrum.
The above-mentioned method for illustrating the embodiment of the present invention, following for being easy to preferably implement the embodiment of the present invention
Such scheme, correspondingly, is also provided below the relevant device for implementing such scheme for coordinating.
The structural representation for the wireless transmission device that the present invention as shown in Figure 11 is provided, wireless transmission device 110 is side
The corresponding data sending terminal of method embodiment, wireless transmission device 110 can include group A-MPDU data frames generation module 1100
With data transmission blocks 1102, wherein
Group A-MPDU data frames generation module 1100 is used for generation group polymerisation medium MAC layer protocol Data Unit A-
MPDU data frames, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group
One identifies for indicating the group A-MPDU data belonging to the multiple A-MPDU sub-frame datas；
Data transmission blocks 1102 are used to send the side of one group of A-MPDU data frame at interval of the default frame period time
Formula, data receiver is sent to by every group of A-MPDU data frame of generation.
Specifically, group A-MPDU data frames generation module 1100 can include：First group field setting unit, in group
Group field is set in the A-MPDU data frame formats of A-MPDU data frames, and it is each that the group field contains described group of A-MPDU data frame
Self-corresponding group first identifies.
Or, group A-MPDU data frames generation module 1100 can include：Second group field setting unit, in a group A-
Group field is set in the A-MPDU sub-frame data forms of MPDU data frames, and the group field contains the A-MPDU sub-frame datas pair
The group answered first is identified.
Further, the group field is arranged in the filling Pad subdomains of A-MPDU sub-frame data forms.
Yet further, the group A-MPDU data frames that the group A-MPDU data frames generation module 1100 that the present invention is provided is generated
At least include two groups of A-MPDU data frames.
The structural representation of another embodiment for the wireless transmission device that the present invention as shown in Figure 12 is provided, wireless transmission
Equipment 110 is included outside group A-MPDU data frames generation module 1100 and data transmission blocks 1102, can also include chunk and confirm
Receiving module 1104 and chunk confirm parsing module 1106, wherein
Chunk confirms that receiving module 1104 is used to send out every group of A-MPDU data frame of generation in data transmission blocks 1102
Give after data receiver, chunk confirmation is received after the frame period time is spaced；The chunk confirmation bag
Include the confirmation for representing every group of A-MPDU data frame receipt states.
Chunk confirms that parsing module 1106 is used to parse the chunk confirmation that chunk confirms the reception of receiving module 1104, obtains
To the mark of group second and its corresponding data receiving status information；Described group second identifies for indicating the data receiver termination
Group A-MPDU data frames belonging to the A-MPDU sub-frame datas of receipts, described group second identifies corresponding data receiving status information and uses
In the state confirmation information for indicating described group of A-MPDU data frame of the data receiver reception.
Wireless transmission device 110 in the embodiment of the present invention for example can be Network Management Equipment, router, transmission node, intelligence
Can mobile terminal or other network equipments.
It will be appreciated that the function of each functional module of the wireless transmission device 110 of the present embodiment can be according to the above method
Method in embodiment is implemented, and here is omitted.
The above-mentioned wireless transmission device 110 for illustrating the embodiment of the present invention, following for be easy to preferably implement this
The such scheme of inventive embodiments, correspondingly, is also provided below a kind of radio receiver；
The structural representation for the radio receiver that the present invention as shown in Figure 13 is provided, radio receiver 130 is side
The corresponding data receiver of method embodiment, radio receiver 130 can include：Data reception module 1300, for receiving
The group polymerisation medium MAC layer protocol Data Unit A-MPDU data frames that data sending terminal is sent, wherein described group of A-MPDU
Data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first identifies for indicating the multiple A-MPDU
Group A-MPDU data frames belonging to sub-frame data；
Specifically, radio receiver 130 can also include chunk confirmation generation module 1302 and chunk confirms hair
Module 1304 is sent, wherein
Chunk confirmation generation module 1302 is used to generate chunk confirmation, the chunk according to data receiving state
Confirmation includes the confirmation for being used to represent every group of A-MPDU data frame receipt states；
Chunk confirms that sending module 1304 is used for the group A- that data sending terminal transmission has been received in data reception module 1300
After MPDU data frames, the chunk confirmation is sent to the data sending terminal after the default frame period time is spaced.
Specifically, the structural representation for the chunk confirmation generation module that the present invention as shown in Figure 14 is provided, chunk
Confirmation generation module 1302 can include group A-MPDU data resolution unit 13020 and status information setting unit 13022,
Wherein
Group A-MPDU data resolution unit 13020 is used to parse the group A-MPDU data frames received, obtains described group of A-
Group first in MPDU data frames is identified；
Status information setting unit 13022 is used for reception state and described group according to described group of A-MPDU data frame of reception
First mark, setting group second is identified and its corresponding data receiving status information in block confirms frame format；Described group second
Identify for indicating the group A-MPDU data frames belonging to the A-MPDU sub-frame datas that the data receiver is received, described group second
Identifying corresponding data receiving status information is used for the state for indicating that the data receiver receives described group of A-MPDU data frame
Confirmation.
Further, described group second mark is arranged in the reservation bit position that block confirms control domain.
Yet further, described group second identifies the block that corresponding data receiving status information is arranged on block confirmation domain
Confirm in message bit pattern.
The radio receiver 130 of the embodiment of the present invention for example can be tablet personal computer, personal digital assistant, intelligent mobile
Terminal or other network equipments.
It will be appreciated that the function of each functional module of the radio receiver 130 of the present embodiment can be according to the above method
Method in embodiment is implemented, and here is omitted.
For the ease of preferably implementing the such scheme of the embodiment of the present invention, present invention also offers implement for coordinating
State the related system of scheme.The structural representation of the wireless communication system provided with reference to the present invention shown in Figure 15, is carried out
Describe in detail：
Wireless communication system 150 includes data sending device 1500 and data sink 1502, wherein
Data sending device 1500 includes the wireless transmission device 110 in above-described embodiment, repeats no more here；
Data sink 1502 includes the radio receiver 130 in above-described embodiment, repeats no more here；.
In summary, by implementing the embodiment of the present invention, generation group A-MPDU data frames, and with interval of default interframe
The mode of one group of A-MPDU data frame is sent every the time, every group of A-MPDU data frame of generation is sent to data receiver, number
Chunk confirmation message frame is generated according to the reception state of multi-group data frame according to receiving terminal, and is sent to data sending terminal, so as to subtract
The BA interaction times of data receiver and data sending terminal are lacked, have greatly reduced the quantity forwarded of BA message frames, solved existing
Have as the increase of BA message number of frames causes fixed overhead big in technology, the low technical problem of rational spectrum utilization rate, effectively
The quantity forwarded of BA message frames is controlled, fixed overhead is greatly reduced, the effective rate of utilization of frequency spectrum is improved.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to present invention power
Profit requires made equivalent variations, still falls within and invents covered scope.
Claims (26)
1. a kind of wireless communications method, it is characterised in that including：
Generation group polymerisation medium MAC layer protocol Data Unit A-MPDU data frames, wherein described group of A-MPDU data frame packet
Include the mark of group first and multiple A-MPDU sub-frame datas；Described group first identifies for indicating the multiple A-MPDU sub-frame datas
Affiliated group A-MPDU data frames；
In the way of sending a group A-MPDU data frame at interval of the default frame period time, by each group of A-MPDU of generation
Data frame is sent to data receiver.
2. the method as described in claim 1, it is characterised in that the generation group A-MPDU data frames include：
Group field is set in the A-MPDU data frame formats of group A-MPDU data frames, and the group field contains described group of A-MPDU
Each self-corresponding group first of data frame is identified.
3. the method as described in claim 1, it is characterised in that the generation group A-MPDU data frames include：
Group field is set in the A-MPDU sub-frame data forms of group A-MPDU data frames, the group field contains the A-MPDU
Corresponding group first of sub-frame data is identified.
4. method as claimed in claim 3, it is characterised in that the group field is arranged on filling out for A-MPDU sub-frame data forms
Fill in Pad subdomains.
5. the method as described in claim any one of 1-4, it is characterised in that the group A-MPDU data frames of generation at least include two
Individual group of A-MPDU data frame.
6. the method as described in claim any one of 1-4, it is characterised in that in every group of A-MPDU data frame by generation
It is sent to after data receiver, in addition to：
Chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes being used to represent described every
The confirmation of individual group of A-MPDU data frame receipt state.
7. method as claimed in claim 6, it is characterised in that the chunk that received after the frame period time is spaced confirms
After information, in addition to：
The chunk confirmation is parsed, the mark of group second and its corresponding data receiving status information is obtained；Described group second
Identify for indicating the group A-MPDU data frames belonging to the A-MPDU sub-frame datas that the data receiver is received, described group second
Identifying corresponding data receiving status information is used for the state for indicating that the data receiver receives described group of A-MPDU data frame
Confirmation.
8. a kind of wireless communications method, it is characterised in that including：
The group polymerisation medium MAC layer protocol Data Unit A-MPDU data frames that data sending terminal is sent are received, wherein described
Group A-MPDU data frames include the mark of group first and multiple A-MPDU sub-frame datas；Described group first identify for indicate it is described many
Group A-MPDU data frames belonging to individual A-MPDU sub-frame datas.
9. method as claimed in claim 8, it is characterised in that the group A-MPDU data sent in the reception data sending terminal
After frame, in addition to：
Chunk confirmation is generated according to data receiving state, the chunk confirmation includes being used to represent each group of A-
The confirmation of MPDU data frame receipt states；
After the group A-MPDU data frames of data sending terminal transmission have been received, to the number after the default frame period time is spaced
The chunk confirmation is sent according to transmitting terminal.
10. method as claimed in claim 9, it is characterised in that described that chunk confirmation is generated according to data receiving state
Including：
The group A-MPDU data frames received are parsed, the group in described group of A-MPDU data frame first is obtained and identifies；
Identified, set in block confirms frame format according to the reception state of described group of A-MPDU data frame of reception and described group first
The mark of group second and its corresponding data receiving status information；Described group second identifies for indicating that the data receiver is received
A-MPDU sub-frame datas belonging to group A-MPDU data frames, described group second identifies corresponding data receiving status information and is used for
Indicate that the data receiver receives the state confirmation information of described group of A-MPDU data frame.
11. method as claimed in claim 10, it is characterised in that described group second mark is arranged on the guarantor that block confirms control domain
Stay in bit.
12. method as claimed in claim 10, it is characterised in that described group second identifies corresponding data receiving status information
The block in block confirmation domain is arranged on to confirm in message bit pattern.
13. a kind of wireless transmission device, it is characterised in that including：
Group A-MPDU data frame generation modules, for generation group polymerisation medium MAC layer protocol Data Unit A-MPDU data
Frame, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group first mark is used
In the group A-MPDU data frames belonging to the multiple A-MPDU sub-frame datas of instruction；
Data transmission blocks, in the way of sending a group A-MPDU data frame at interval of the default frame period time, inciting somebody to action
Each group of A-MPDU data frame of generation is sent to data receiver.
14. equipment as claimed in claim 13, it is characterised in that described group of A-MPDU data frame generation module includes：
First group field setting unit, for setting group field in the A-MPDU data frame formats of group A-MPDU data frames, institute
State group field and contain each self-corresponding group first of described group of A-MPDU data frame and identify.
15. equipment as claimed in claim 13, it is characterised in that described group of A-MPDU data frame generation module includes：
Second group field setting unit, for setting group field in the A-MPDU sub-frame data forms of group A-MPDU data frames,
The group field contains corresponding group first of the A-MPDU sub-frame datas and identified.
16. equipment as claimed in claim 15, it is characterised in that the group field is arranged on A-MPDU sub-frame data forms
Fill in Pad subdomains.
17. the equipment as described in claim any one of 13-16, it is characterised in that described group of A-MPDU data frame generation module
The group A-MPDU data frames of generation at least include two group A-MPDU data frames.
18. the equipment as described in claim any one of 13-16, it is characterised in that also include：
Chunk confirms receiving module, for each group of A-MPDU data frame of generation to be sent into number in the data transmission blocks
After receiving terminal, chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes being used for
Represent the confirmation of each group of A-MPDU data frame receipt states.
19. equipment as claimed in claim 18, it is characterised in that also include：
Chunk confirms parsing module, and the chunk confirmation that receiving module is received is confirmed for parsing the chunk, obtains group the
Two marks and its corresponding data receiving status information；Described group second identifies for indicating the A- that the data receiver is received
Group A-MPDU data frames belonging to MPDU sub-frame datas, described group second identifies corresponding data receiving status information and is used to indicate
The data receiver receives the state confirmation information of described group of A-MPDU data frame.
20. a kind of radio receiver, it is characterised in that including：
Data reception module, the group polymerisation medium MAC layer protocol Data Unit A- for receiving data sending terminal transmission
MPDU data frames, wherein described group of A-MPDU data frame includes the mark of group first and multiple A-MPDU sub-frame datas；Described group
One identifies for indicating the group A-MPDU data frames belonging to the multiple A-MPDU sub-frame datas.
21. equipment as claimed in claim 20, it is characterised in that also include：
Chunk confirmation generation module, for generating chunk confirmation, the chunk confirmation letter according to data receiving state
Breath includes the confirmation for being used to represent each group of A-MPDU data frame receipt states；
Chunk confirms sending module, the group A-MPDU data for having received data sending terminal transmission in the data reception module
After frame, the chunk confirmation is sent to the data sending terminal after the default frame period time is spaced.
22. equipment as claimed in claim 21, it is characterised in that the chunk confirmation generation module includes：
Group A-MPDU data resolution units, for parsing the group A-MPDU data frames received, obtain described group of A-MPDU data
Group first in frame is identified；
Status information setting unit, is marked for the reception state according to described group of A-MPDU data frame of reception and described group first
Know, setting group second is identified and its corresponding data receiving status information in block confirms frame format；Described group second mark is used
The group A-MPDU data frames belonging to A-MPDU sub-frame datas received in the instruction data receiver, described group second mark pair
The data receiving status information answered is used for the state confirmation letter for indicating that the data receiver receives described group of A-MPDU data frame
Breath.
23. equipment as claimed in claim 22, it is characterised in that described group second mark is arranged on the guarantor that block confirms control domain
Stay in bit.
24. equipment as claimed in claim 22, it is characterised in that described group second identifies corresponding data receiving status information
The block in block confirmation domain is arranged on to confirm in message bit pattern.
25. a kind of wireless communication system, it is characterised in that including data sending device and data sink, wherein
The data sending device includes the wireless transmission device as described in claim any one of 13-16；
The data sink includes the radio receiver as described in claim any one of 20-24.
26. system as claimed in claim 25, it is characterised in that the wireless transmission device also includes：
Chunk confirms receiving module, for each group of A-MPDU data frame of generation to be sent into number in the data transmission blocks
After receiving terminal, chunk confirmation is received after the frame period time is spaced；The chunk confirmation includes being used for
Represent the confirmation of each group of A-MPDU data frame receipt states；
Chunk confirms parsing module, and the chunk confirmation that receiving module is received is confirmed for parsing the chunk, obtains group the
Two marks and its corresponding data receiving status information；Described group second identifies for indicating the A- that the data receiver is received
Group A-MPDU data frames belonging to MPDU sub-frame datas, described group second identifies corresponding data receiving status information and is used to indicate
The data receiver receives the state confirmation information of described group of A-MPDU data frame.
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| CN112511267B (en) | 2015-09-01 | 2022-04-22 | 华为技术有限公司 | Method for indicating receiving state of A-MPDU (advanced Power control protocol) and receiving end equipment |
| CN113572579B (en) * | 2016-05-11 | 2024-01-23 | 韦勒斯标准与技术协会公司 | Wireless communication method for transmitting ACK and wireless communication terminal using the same |
| CN109314997A (en) | 2016-05-11 | 2019-02-05 | 韦勒斯标准与技术协会公司 | The wireless communication terminal and wireless communications method of uplink multiuser transmission based on random access |
| CN107548104B (en) * | 2016-06-24 | 2020-12-01 | 华为技术有限公司 | Data transmission method, access point and station |
| CN108123781B (en) * | 2016-11-29 | 2020-12-15 | 华为技术有限公司 | Information indication method, receiving method and device |
| CN107426805B (en) * | 2017-07-13 | 2020-01-31 | 北京千丁互联科技有限公司 | Wireless node device, data transmitting apparatus, data transmitting method, and data receiving method |
| CN109842919B (en) | 2017-11-28 | 2021-11-23 | 阿里巴巴集团控股有限公司 | Communication between terminal and base station, and network access method and device of terminal |
| CN110620639B (en) * | 2019-10-09 | 2022-01-21 | 中科睿微(宁波)电子技术有限公司 | Hardware retransmission circuit and method for data subframe aggregation retransmission |
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