CN103548316B - A kind of method and apparatus for frame acknowledgment - Google Patents
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- CN103548316B CN103548316B CN201280013095.XA CN201280013095A CN103548316B CN 103548316 B CN103548316 B CN 103548316B CN 201280013095 A CN201280013095 A CN 201280013095A CN 103548316 B CN103548316 B CN 103548316B
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Abstract
The invention provides a kind of method and apparatus for frame acknowledgment, the method includes: the confirmation response of one or more frame is encapsulated as group acknowledge response；Send described group acknowledge response.The method can reduce the transfer resource that frame acknowledgment takies, and effectively guarantees data Successful transmissions.
Description
This application claims filing date on March 31st, 2011, Application No. 201110081288.6, invention entitled one
The priority of the earlier application of wireless communications method, and filing date on May 19th, 2011, Application No.
201110130194.3, the priority of the earlier application of invention entitled a kind of communication system, and filing date in July, 2011
6 days, Application No. 201110189230.3, earlier application preferential of invention entitled a kind of method and apparatus for retransmitting
Power, and filing date on February 8th, 2012, Application No. 201210027848.4, invention entitled a kind of for frame acknowledgment
The priority of the earlier application of method and apparatus, and filing date on March 2nd, 2012, Application No. 201210053090.1,
The priority of the earlier application of invention entitled a kind of method and apparatus for frame acknowledgment, the full content of above-mentioned earlier application
Embody the most in this application.
Technical field
The invention belongs to wireless communication field, particularly relate to a kind of method and apparatus for frame acknowledgment.
Background technology
In recent years, radio network technique has WLAN WiFi technology based on 802.11 standards, based on 802.15
Bluetooth Bluetooth system and the Femto technology towards indoor application that is derived by mobile communication system etc..
WiFi technology based on IEEE 802.11 is a kind of wireless network transmission technology that current use is the widest.Mainly should
For radio local network environment, application scenarios is in the majority with indoor, it is possible to be applied to outdoor environment.802.11 systems are by initial base
It is evolved to 802.11a and 802.11g based on OFDM technology in the 802.11b of CDMA transmission mechanism.Although at up-to-date IEEE
In 802.11n-2009 standard, by introduce multiple antennas (MIMO) technology make 802.11n physical layer peak rate up to
600Mbps, but the only maximum of handling up of usual medium education (MAC, Media ACess Control) layer can reach
300Mbps.So for traditional wlan system, single user based on CSMA/CA (carrier sense/conflict avoidance) accesses
The bottleneck of MAC layer design always network performance.So, although existing Wi-Fi technology provides the user to a certain extent
Cheap user mode access, but it is difficult to adapt to again the multimedia service of the current and following two-forty developed rapidly
Demand.
Femto technology based on 3GPP standard is a kind of new towards in-door covering come from mobile communication system evolution
Technology, Femto technology based on 3G system uses CDMA transmission mechanism, and the Femto technology towards LTE or WiMAX system is then adopted
By OFDM transmission mechanism.The user that its multiple access access mechanism is different by time, frequency, code word distributes mutually orthogonal access
Resource, this has essence different from the CSMA/CA random multi-access channel towards competition.But Femto technology is by towards mobile logical
The 3G/LTE/WiMAX system of communication system is derived.Due to 3G/LTE/WiMAX system be mainly directed towards wide area cover movement lead to
Letter scene, its system features does not optimize for short-distance and medium-distance radio communication scene.It is simultaneously based on 3G/LTE/WiMAX more multiple
Miscellaneous upper-layer protocol design and the PHY layer strict demand to synchronization etc., cause equipment cost can not accomplish the low of picture 802.11
Honest and clean, this is also one of current major reason not being widely used of Femto technology.
In the face of the multimedia service application demand day by day developed rapidly, in order to preferably meet wireless communication needs, need
The implementation being more suitable for is proposed.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and apparatus for frame acknowledgment, thus effectively guarantees
Data Successful transmissions.
In order to solve above-mentioned technical problem, the present invention proposes a kind of method for frame acknowledgment, including:
The invention provides a kind of method for frame acknowledgment, including:
The confirmation response of one or more frame is encapsulated as group acknowledge response；
Send described group acknowledge response.
Present invention also offers a kind of device for frame acknowledgment, including:
Package module, for being encapsulated as group acknowledge response by the confirmation response of one or more frame；
Sending module, is used for sending described group acknowledge response.
Present invention also offers a kind of method for frame acknowledgment, including:
Generation group acknowledge is asked, and carries the mark of one or more Business Stream and each Business Stream in the request of described group acknowledge
The mark of the upper frame needing to confirm；
Send the request of described group acknowledge.
Present invention also offers a kind of device for frame acknowledgment, including:
Package module, is used for generating group acknowledge request, carries one or more Business Stream in the request of described group acknowledge
The mark of the frame confirmed is needed in mark and each Business Stream；
Sending module, is used for sending the request of described group acknowledge.
A kind of method and apparatus for frame acknowledgment that the present invention provides, it is possible to for guaranteeing that data Successful transmissions provides one
Response mode, and can effectively save transfer resource.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of a kind of frame acknowledgment of first embodiment of the invention；
Fig. 2 is first embodiment of the invention one group acknowledge frame format schematic diagram；
Fig. 3 is second embodiment of the invention one ACK frame format schematic diagram；
Fig. 4 is the method flow diagram of a kind of re-transmission of third embodiment of the invention；
Fig. 5 is third embodiment of the invention one G-MPDU form schematic diagram；
Fig. 6 is third embodiment of the invention one G-MPDU sub-frame formats schematic diagram；
Fig. 7 is a kind of method flow diagram for retransmitting of fourth embodiment of the invention；
Fig. 8 is fourth embodiment of the invention one group acknowledge claim frame form schematic diagram；
Fig. 9 is a kind of device block diagram for frame acknowledgment of fifth embodiment of the invention；
Figure 10 is a kind of device block diagram for frame acknowledgment of sixth embodiment of the invention.
Detailed description of the invention
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to
Put into practice them.Other embodiments can include structure, logic, electric, process and other change.Embodiment
Only represent possible change.Unless explicitly requested, otherwise individually assembly and function are optional, and the order operated is permissible
Change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This
The scope of bright embodiment includes the gamut of claims, and all obtainable equivalent of claims
Thing.In this article, these embodiments of the present invention can be represented by " inventing " individually or generally with term, and this is only
For convenience, and if in fact disclose the invention more than, it is not meant to automatically limit this application in the range of appointing
What single invention or inventive concept.
First embodiment
A kind of method embodiments providing frame acknowledgment, is not only suitable for managing frame and is also applied for Frame.Send
After end sends frame, receiving terminal returns and confirms response, to inform whether data described in transmitting terminal are successfully received such that it is able to logarithm
Effective monitoring is carried out according to sending success or not.
See Fig. 1, the figure shows embodiment of the present invention one frame acknowledgment method, including step:
Step S101: the confirmation response of one or more frame is encapsulated as group acknowledge response (GroupAck)；
Wherein, the confirmation response of described frame is in order to indicate the reception state of frame, including receiving and not receiving.
Step S102: send described group acknowledge response.
Embodiments provide the response mode of a kind of group acknowledge, the confirmation response of multiple frames is encapsulated to same frame
In send, use this response mode, same frame head parameter to have only to pass once, be effectively saved transmission money
Source；When transmitting the most on the physical channel, the synchronization performing a frame (group acknowledge response) can get the response of multiple frame,
Thus effectively save physical transfer resource.
Wireless communication system supports multiple business, and the transmission of data is transmitted according to Business Stream.According to type, Business Stream is permissible
It is divided into management Business Stream and data Business Stream.Wherein, management Business Stream is made up of one or more management frame, data service stream
It is made up of one or more Frame.Can also be more stream by data service flow point according to concrete type of service, example
Such as Business Stream 1 (representing with FID1), Business Stream 2 (representing with FID2) ... Business Stream n (represents with FIDn).
Therefore, step S101 can farther include (not shown):
Step S1011: the confirmation response of one or more frame on same Business Stream is encapsulated as Business Stream and confirms to answer
Answer；
Step S1012: the confirmation response of one or more Business Stream is encapsulated as group acknowledge response.
When encapsulating group acknowledge response, also encapsulate the mark of one or more Business Stream, and described each business
The mark of one or more frame on stream so that receiving terminal identifies which business the group acknowledge response received is to according to this
The confirmation which frame on stream is made.
It is preferred that the embodiment of the present invention proposes with each in each bit traffic streams successively in a bitmap (bitmap)
The confirmation response of frame.The confirmation response of the frame of correspondence is identified with the sequence number of frame corresponding to the bit in described bitmap.Connect
What receiving end learnt carrying in described bit according to the sequence number of frame corresponding to bit in described bitmap is the response of which frame,
The confirmation response content of frame that described bit sequence number identifies is known according to described bit worth.
It is preferred that when frame response multiple to continuous print on Business Stream, can the frame of ad-hoc location in described continuous print frame,
Such as with the sequence number of frame corresponding to bit first in bitmap, and the length of bitmap carrys out continuous multiple frames on identification service stream
Confirmation response, the confirmation response of each the corresponding frame in bitmap.
It is preferred that the length of described bitmap is not fixed, the response quantity of the frame of return is very flexible, further increases
Resource utilization.
It is preferred that burst instruction information can also be arranged, with in the bitmap that instruction is corresponding carrying be the frame of burst
Confirm response, the confirmation response of the frame of the most non-burst.That is, the embodiment of the present invention support confirmation response to the frame of non-burst,
Also the confirmation response of the frame to burst is supported, simultaneously can with the frame confirming response and non-burst of the frame of hybrid feedback burst really
Recognize response.Such as, carrying the confirmation response of FID0 and FID1 in group acknowledge response, the frame on FID0 is the frame of non-burst,
Frame on FID1 is the frame of burst, then with the confirmation response of frame of the non-burst on bitmap0 instruction FID0, refer to bitmap1
Show the confirmation response of the frame of burst on FID1.The most such as, group acknowledge response is carried the confirmation response of FID0 and FID1,
Frame on FID0 includes the frame of non-burst and the frame of burst, and the frame on FID1 is the frame of non-burst, then indicate FID0 with bitmap0
On the confirmation response of frame of non-burst, with the confirmation response of the frame of the burst on bitmap1 instruction FID0, refer to bitmap2
Show the confirmation response of the frame of non-burst on FID1.
In order to more intuitively illustrate, the embodiment of the present invention additionally provides the form of a kind of concrete group acknowledge frame, such as Fig. 2 institute
Show.Group acknowledge frame shown in Fig. 2 includes frame head, frame and frame check information (FCS).Frame head comprises frame control information, such as
Frame type (management frame or Frame), subtype (concrete management frame, or concrete data frame type), version letter
Breath etc.；Frame comprises one or more FID chunk, described FID chunk include traffic stream identifier, sequence number and
Bitmap, wherein said bitmap each correspondence one for carrying the confirmation response of the multiple frame of continuous print, in bitmap
The confirmation response of frame, described sequence number is for indicating the sequence number of the frame that first bit is corresponding in described bitmap.
It is preferred that arrange each FID chunk according to the length of bitmap；The length of described bitmap is not fixed.
It is preferred that also set up the length field of bitmap in described FID chunk, for indicating the length of bitmap.
It is preferred that also set up burst instruction information in described FID chunk, with indicate in described bitmap carrying it is
The confirmation response of the frame of burst, or the confirmation response of the frame of non-burst.
It is preferred that also set up management control frame acknowledgement bit in frame, for receiving one without serial number management control
Frame processed confirms.
It is preferred that length field can be arranged in frame, it is used for indicating between described length field and FCS field all
The total byte length of field, i.e. indicate the length sum of all FID chunk.
Each parameter definition in frame refers to table 1.
Table 1
The confirmation response of described frame is in order to indicate the reception state of frame, including receiving and not receiving.
Below the trigger timing that the embodiment of the present invention returns frame acknowledgment response is illustrated:
1, confirm immediately:
Mode 1: receiving immediately after confirmation request, returning acknowledgement frame immediately.
Wherein, described confirmation request immediately can be the claim frame form that both sides appoint.It is preferred that described immediately
Confirmation request can be group acknowledge request, carry in the mark of one or more Business Stream, and each Business Stream or
The mark of the multiple frame of person, with the confirmation response of the designated frame in instruction immediately return specified services stream.Receive described group true
After recognizing request, return the confirmation response specifying the designated frame on data stream immediately.
Described confirmation request immediately can also be the indicating bit that both sides appoint.Such as, certain in appointment data frame
One field is for confirming indicating bit immediately.When resolving Frame, confirm instruction immediately if parsed from Frame, the most immediately
Return acknowledgement frame.
It is preferred that confirm immediately in the frame head that instruction is carried on Frame described in arranging.
Return acknowledgement frame described in the embodiment of the present invention immediately, be to return in the next time cycle.
In the embodiment of the present invention, central access point (CAP) and website (STA) can transmitting terminal and receiving terminals each other.Wherein,
CAP is the entity that the STA for accessing provides the service of access；STA is to have medium education (MAC) and physical layer (PHY) merit
Energy interface, the terminal unit that can communicate with CAP.Transmitting-receiving both-end is communicated by physical frame, and each physical frame cycle wraps successively
Include downstream cycle and upward cycle: CAP sends data at downstream cycle to STA；STA sends data at upward cycle to CAP.This
In inventive embodiments, when instruction opposite end returns acknowledgement frame immediately, indicated return duration immediately, the i.e. next time cycle,
Refer to that the ascending physical signal frame period corresponds to the downlink physical frame period, or the downlink physical frame period corresponds to the upper of a upper physical frame
Line period.Specifically, when transmitting terminal is CAP, be this frame the downlink physical cycle send described in carry immediately confirm refer to
During the Frame shown, the described instruction of confirmation immediately is for indicating STA to return frame acknowledgment response in the ascending physical signal cycle of this frame；When
When transmitting terminal is STA, it is to send to carry in the ascending physical signal cycle of this frame to confirm the Frame of instruction immediately, described confirms immediately
Instruction returns frame acknowledgment response for indicating CAP in the downlink physical cycle of next frame.
2, delayed acknowledgement:
When not receiving confirmation request immediately, it is believed that allow opposite end to postpone to return the confirmation response of frame.
In the embodiment of the present invention, the indicating bit that both sides appoint, dominant indication lag confirms.Such as, appointment data
A certain field in frame is delayed acknowledgement indicating bit.The frame acknowledgment using delayed acknowledgement waits that interval is determined by transmitting terminal, permissible
Send when available free resource.When resolving Frame, if parsing delayed acknowledgement instruction from Frame, then available free
Acknowledgement frame is returned during resource.
Second embodiment
For management control frame, the unicast management control frame of corresponding response frame is not had to need to use ACK or group acknowledge frame
(GroupAck) confirm, the most directly confirm with corresponding response frame.
The embodiment of the present invention additionally provides some management frame claim frame and response frames of correspondence thereof, as shown in table 2.Certainly,
In another embodiment, can also arrange other management claim frame and responses of correspondence thereof as required, the present invention does not does at this
Limit.
Table 2
All Non-Broadcast Multicast Access management control frame (except random access request response frame and independent resource claim frame) are required for sending out
Send acknowledgement frame or implicit confirmation.Implicit confirmation refers to for there being the unicast management control frame of corresponding response frame can be by response frame
Acknowledgement frame as this frame.Non-Broadcast Multicast Access management control frame need not confirm immediately, and response frame can allow the most later
Respond in big physics frame number.The response frame that CAP sends can not receive the acknowledgement frame of STA, can not up to preset
Retransmitting this response frame before big number of retransmissions, after number of retransmissions exceedes described default maximum retransmission, transmitting terminal will abandon this
Frame.
Frame uses and confirms immediately to be determined by transmitting terminal with delayed acknowledgement.Receiving terminal can be according to setting in MAC header
The field of instruction frame acknowledgment mode indicates whether to need to confirm immediately.Interval is one to use the frame acknowledgment confirmed immediately to wait
Time cycle.The frame acknowledgment using delayed acknowledgement waits that interval is determined by transmitting terminal.
During if it is confirmed that mode is for confirming immediately, does not receive acknowledgement frame in the next time cycle, then can not reach
Before the maximum retransmission preset, retransmit this Frame, after number of retransmissions exceedes described default maximum retransmission, send
End will abandon this frame.The next time cycle said herein can be with the ascending physical signal frame period corresponding to the downlink physical frame period, also
It can be the downlink physical frame period upward cycle corresponding to a upper physical frame.That is, the downlink physical cycle at this frame sends institute
State carry confirm immediately instruction Frame time, described immediately confirm instruction for instruction this frame the ascending physical signal cycle return
Frame acknowledgment response；When the Frame confirming instruction immediately is carried in the ascending physical signal cycle transmission of this frame, described confirmation immediately refers to
Show and return frame acknowledgment response for instruction in the downlink physical cycle of next frame.When MPDU retransmits, sequence number and burst number keep
Constant.
During if it is confirmed that mode is delayed acknowledgement, in the wait interval that transmitting terminal is arranged, does not receive acknowledgement frame, then may be used
To retransmit this Frame before the maximum retransmission not up to preset, number of retransmissions exceedes described default maximum retransmission
After, transmitting terminal will abandon this frame.
ACK frame and GroupAck frame, it is no longer necessary to other frames confirm.
For burst and the Frame of non-burst, it is possible to use any one mode of ACK or GroupAck confirms.
The embodiment of the present invention additionally provides another kind of frame acknowledgment mode (ACK frame), it is adaptable to confirm for single frames.For
More intuitively illustrating, the embodiment of the present invention additionally provides the form of a kind of concrete acknowledgement frame, as shown in Figure 3.Shown in Fig. 3
Acknowledgement frame includes frame head, frame and frame check information (FCS).Frame head comprises frame control information, such as frame type (management frame or
Person's Frame), subtype (concrete management frame, or concrete data frame type), version information etc.；Frame comprises
FID, burst number (FSN), number of frames (SN).Each parameter definition in frame refers to table 3.
Table 3
3rd embodiment
A kind of method embodiments providing re-transmission, as shown in Figure 4, including step:
Step S401: the frame that caching has sent；
Step S402: receive and parse through frame acknowledgment response；
Step S403: retransmit the frame of reception unconfirmed in the frame of caching.
The repeating method that the embodiment of the present invention provides is safeguarded the data retransmitted by transmitting terminal, when retransmitting, only retransmits the most true
Recognize the frame of reception, the frame having been received by no longer is retransmitted.Especially when retransmitting data according to preset window, it is allowed in window
The confirmed frame received does not retransmits, and is greatly saved transfer resource.
It is preferred that the frame having confirmed that reception in the frame of caching can be deleted.Thus effectively save local cache resource.
Send it is preferred that one or more continuous print frame can be encapsulated as framing (G-MPDU).As it is shown in figure 5, G-
MPDU is made up of a series of G-MPDU subframes.As shown in Figure 6, G-MPDU subframe includes G-MPDU delimiter, MPDU and possible
Byte of padding.Except last G-MPDU subframe, each G-MPDU subframe needs to increase by 0～1 byte of padding, makes each G-
The length of MPDU subframe is the integral multiple of 2 bytes.Shown G-MPDU delimiter is used for positioning the MPDU unit of G-MPDU.By multiple
Frame is packaged together and sends, and when transmitting on the physical channel, the synchronization performing a frame (framing) can get multiple
Frame, thus effectively save physical transfer resource.
The frame acknowledgment response received in step S402 can be the group acknowledge response using embodiment one to provide, it is also possible to
It it is the confirmation response of the single frames that embodiment two provides.
4th embodiment
For the consideration to caching capabilities, in order to prevent causing makeing mistakes beyond caching capabilities, the embodiment of the present invention also provides for
A kind of method for retransmitting, increases the caching capabilities to local terminal and is monitored, detecting that caching capabilities there may be super
When going out risk, in time notice opposite end returns response immediately, concrete as it is shown in fig. 7, comprises step:
Step S701: caching does not receives the frame confirming response；
Step S701: judge whether to reach buffer memory capacity threshold value；
Step S701: when reaching buffer memory capacity threshold value, sends confirmation request immediately, and returning frame acknowledgment immediately with instruction should
Answer.
It is preferred that described confirmation request immediately carries the mark of one or more Business Stream, and on each Business Stream
The mark of one or more frame, returns the confirmation response specifying the designated frame on data stream immediately with instruction.
It is preferred that described confirmation request immediately can carry the sequence number needing to return the first frame of response on each Business Stream,
The confirmation response of the frame started on described Business Stream is returned from described first frame with instruction opposite end.
In order to more intuitively illustrate, the embodiment of the present invention additionally provides the frame format of a kind of concrete confirmation request immediately,
As shown in Figure 8.The frame of confirmation request immediately shown in Fig. 8 includes frame head, frame and frame check information (FCS).Frame head comprises frame
Control information, such as frame type (management frame or Frame), subtype (concrete management frame, or concrete data
Frame type), version information etc.；Comprising one or more FID chunk in frame, each FID chunk includes Business Stream
Mark FID and sequence number, described serial number business needs return the sequence number of the first frame confirming response, to indicate opposite end from described
First frame starts to return confirmation response, the frame corresponding with the first bit of bitmap in the group acknowledge provided in embodiment one
Sequence number is corresponding.In frame, the definition of each parameter refers to table 4.
Table 4
It is preferred that the embodiment of the present invention additionally provides another kind realizes the mode of confirmation request immediately: by will be the most true
Recognize instruction to be carried in Frame, send with Frame, to send confirmation request immediately；Described immediately confirm instruction, use
Frame acknowledgment response is returned immediately in instruction.
It is preferred that can indicate confirming immediately in the frame head being carried on Frame.
Wherein, described return frame acknowledgment response immediately, is to return described group acknowledge response in the next time cycle.Described
The next time cycle refers to that the ascending physical signal frame period corresponds to the downlink physical frame period, or the downlink physical frame period corresponds to
The upward cycle of a upper physical frame.That is, the Frame confirming instruction immediately is being carried described in the downlink physical cycle transmission of this frame
Time, the described instruction of confirmation immediately is for indicating opposite end to return frame acknowledgment response in the ascending physical signal cycle of this frame；Upper at this frame
The row physics cycle sends when carrying the Frame confirming instruction immediately, and the described instruction of confirmation immediately is used for indicating opposite end at next frame
The downlink physical cycle return frame acknowledgment response.
It is preferred that delayed acknowledgement instruction can also be carried on by the embodiment of the present invention when not up to buffer memory capacity threshold value
In Frame, send with Frame.Described delayed acknowledgement indicates, and is used for indicating permission to postpone to return on each Business Stream all
The confirmation response of unacknowledged data frame.Opposite end is when resolving Frame, if parsing delayed acknowledgement instruction from Frame,
All unacknowledged frame acknowledgment responses on each Business Stream are then returned when available free resource.
The embodiment of the present invention additionally provides a kind of frame acknowledgment and sends the selection on opportunity, central access point (CAP) and website
(STA) can transmitting terminal and receiving terminal each other, specifically include:
If 1 CAP sends management control frame (needing to confirm), to STA, then CAP needs when scheduling of upstream transmissions resource
Resource is reserved, it is ensured that STA has an opportunity to will confirm that frame is successfully transmitted for acknowledgement frame.
If 2 CAP transmission G-MPDU are to STA, and by for indicating the field of frame acknowledgment mode instruction STA to stand
I.e. confirm, then CAP needs when scheduling of upstream transmissions resource to reserve resource for GroupAck frame or ACK frame.
If 3 CAP transmission aggregate data frames are to STA, and by for indicating the field instruction of frame acknowledgment mode to allow
STA postpones response, then GroupAck frame i.e. actively can be returned by STA when uplink transmission resource has residue, it is also possible to waits
GroupAck frame is returned again after receiving the acknowledgement notification immediately that CAP sends.
If 4 STA transmission management control frame (needing to confirm) are to CAP, then CAP should be in the downlink physical week of next frame
Phase confirms.
If it is to CAP and the most true by the field instruction CAP for indicating frame acknowledgment mode that 5 STA send G-MPDU
Recognize, then CAP sends GroupAck frame or ACK frame in the downlink physical cycle of next frame.
If 6 STA transmission aggregate data frames are to CAP, and by for indicating the field instruction of frame acknowledgment mode to allow
CAP postpones response, then GroupAck frame i.e. actively can be returned by CAP when downlink transfer resource has residue, it is also possible to waits
GroupAck frame is returned again after receiving the acknowledgement notification immediately that STA sends.
5th embodiment
In order to realize embodiment of the present invention frame acknowledgment method, the present invention also proposes a kind of device for frame acknowledgment, such as Fig. 9
Shown in, including:
Package module 901, for being encapsulated as group acknowledge response by the confirmation response of one or more frame；
Sending module 902, is used for sending described group acknowledge response.
It is preferred that described package module 901, for the confirmation response of one or more frame on same Business Stream is sealed
Fill and confirm response for Business Stream；The confirmation response of one or more described Business Stream is encapsulated as group acknowledge response.
It is preferred that described package module 901, for encapsulating the frame head of group acknowledge response, frame and FCS: set in frame
Putting one or more FID chunk, described Business Stream confirms that response includes traffic stream identifier, sequence number and bitmap bitmap,
Wherein said bitmap is used for carrying the confirmation response of the multiple frame of continuous print, the confirmation of the corresponding frame of each in bitmap
Response, described sequence number is for indicating the sequence number of the frame that first bit is corresponding in described bitmap.
It is preferred that described package module 901, for arranging each FID chunk according to the length of bitmap；Described bitmap
Length do not fix.
It is preferred that described package module 901, the length field of bitmap is also set in described FID chunk, is used for referring to
Show the length of bitmap.
It is preferred that described package module 901, burst instruction information is also set in described FID chunk, described with instruction
Carry in bitmap is the confirmation response of the frame of burst, or the confirmation response of the frame of non-burst.
It is preferred that described package module 901, management control frame acknowledgement bit is also set in group acknowledge response, is used for docking
Receive one to confirm without serial number management control frame.
It is preferred that described package module 901, length field is also set in frame, for indicating all FID chunk
Length sum.
It is preferred that the confirmation response of described frame is in order to indicate the reception state of frame, including receiving and not receiving.
It is preferred that also include:
First control module 904, is used for receiving confirmation request immediately, and controls described package module 901 encapsulation group according to this
Confirm response, and control described sending module 902 and send packaged group acknowledge response immediately.
It is preferred that described confirmation request immediately carries the mark of one or more Business Stream, and on each Business Stream
The mark of one or more frame；Described first control module 904, controls described package module according to described confirmation request immediately
The confirmation response of the designated frame specified on data stream is encapsulated as group acknowledge response by 901.
Send immediately it is preferred that described, be to return described group acknowledge response in the next time cycle.During the described next one
Between the cycle refer to the ascending physical signal frame period corresponding to the downlink physical frame period, or the downlink physical frame period is corresponding to a upper physics
The upward cycle of frame.That is, described first control module 904, confirms described in receiving from the downlink physical cycle of this frame immediately
During request, control described sending module 902 and send packaged group acknowledge response in the ascending physical signal cycle of this frame；From this frame
The ascending physical signal cycle receive described in immediately confirmation request time, control the described sending module 902 downlink physical at next frame
Cycle sends packaged group acknowledge response.
It is preferred that also include:
Second control module 904, carries, for receiving, the Frame confirming to indicate immediately, according to confirming instruction control immediately
Described package module 901 encapsulates group acknowledge response, and control described sending module 902 send packaged group acknowledge immediately should
Answer.
It is preferred that described second control module 904, be used for controlling described package module 901 by each Business Stream all not
The confirmation response of frame confirmed is encapsulated as group acknowledge response, and controls described sending module 902 and send packaged group immediately
Confirm response.
It is preferred that described second control module 904, by resolving the frame head of Frame, described in acquisition, confirm instruction immediately.
Send immediately it is preferred that described, be to return described group acknowledge response in the next time cycle；During the described next one
Between the cycle refer to the ascending physical signal frame period corresponding to the downlink physical frame period, or the downlink physical frame period is corresponding to a upper physics
The upward cycle of frame.That is, described second control module 904, confirms immediately receiving to carry from the downlink physical cycle of this frame
During the Frame indicated, control described sending module 902 and send packaged group acknowledge response in the ascending physical signal cycle of this frame；
Receive from the ascending physical signal cycle of this frame carry confirm immediately instruction Frame time, control described sending module 902 and exist
The downlink physical cycle of next frame sends packaged group acknowledge response.
It is preferred that also include:
3rd control module 905, for receiving the Frame carrying delayed acknowledgement instruction, is having according to delayed acknowledgement instruction
During idling-resource, control described package module 901 and encapsulate group acknowledge response, and control the transmission encapsulation of described sending module 902
Good group acknowledge response.
Sixth embodiment
In order to realize embodiment of the present invention frame acknowledgment method, the present invention also proposes the another kind of device for frame acknowledgment, as
Shown in Figure 10, including:
Package module 1001, is used for generating group acknowledge request, carries one or more business in the request of described group acknowledge
The mark of the frame confirmed is needed in the mark of stream and each Business Stream；
Sending module 1002, is used for sending the request of described group acknowledge.
It is preferred that package module 1001, it is used for encapsulating group acknowledge claim frame, to generate the request of described group acknowledge；
The request of described group acknowledge includes that frame head, frame and FCS, described frame include one or more FID chunk,
Each FID chunk includes traffic stream identifier FID and sequence number, to need the sequence number of the first frame of response to make on described Business Stream
For needing the mark of the frame confirmed on described Business Stream, instruction starts to return frame acknowledgment from described first frame.
It is preferred that described package module 1001, also FID digital section is set in group acknowledge is asked, is used for indicating frame
In the number of FID chunk that comprises.
It is preferred that the request of described group acknowledge returns the confirmation response specifying the designated frame on data stream immediately for instruction.
Return group acknowledge response immediately it is preferred that described, be to return described group acknowledge response in the next time cycle；
The described next time cycle refers to that the ascending physical signal frame period corresponds to downlink physical frame period, or downlink physical
Frame period is corresponding to the upward cycle of a upper physical frame.That is, if described sending module 1002 is in the downlink physical cycle of this frame
Transmission group acknowledge ask, then described in immediately confirm instruction for instruction this frame the ascending physical signal cycle return frame acknowledgment response；
If described sending module 1002 this frame the ascending physical signal cycle send group acknowledge request, then described in confirm that instruction is used for immediately
The downlink physical cycle at next frame is indicated to return frame acknowledgment response.
According to described disclosed embodiment, so that those skilled in the art are capable of or use the present invention.Right
For those skilled in the art, the various amendments of these embodiments are apparent from, and the general principles defined here
Other embodiments can also be applied on the basis of without departing from the scope and spirit of the present invention.Embodiment described above is only
Presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, made appoint
What amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (26)
1. the method for frame acknowledgment, it is characterised in that including:
The confirmation response of the frame confirming response and/or burst of the frame of non-burst is encapsulated as group acknowledge response；
Send described group acknowledge response；
Wherein, the confirmation response of one or more frame on same Business Stream is encapsulated as Business Stream and confirms response；By one
Or multiple Business Streams confirm that response is encapsulated as group acknowledge response；
Wherein, the encapsulation frame head of group acknowledge response, frame and frame check information FCS:
Arranging one or more FID chunk in frame, described FID chunk includes traffic stream identifier, sequence number and position
Figure bitmap, wherein said bitmap are for carrying the confirmation response of the multiple frame of continuous print, each correspondence one in bitmap
The confirmation response of individual frame, described sequence number is for indicating the sequence number of the frame that first bit is corresponding in described bitmap；
Wherein, described FID chunk arranges burst instruction information, be the frame of burst with indicate in described bitmap carrying
Confirmation response, or the confirmation response of the frame of non-burst.
2. the method for claim 1, it is characterised in that:
Length according to bitmap arranges each FID chunk；
The length of described bitmap is not fixed.
3. the method for claim 1, it is characterised in that also include:
The length field of bitmap is set in described FID chunk, for indicating the length of bitmap.
4. the method for claim 1, it is characterised in that also include:
Length field is set in frame, for indicating the length sum of all FID chunk.
5. the method for claim 1, it is characterised in that also include:
Frame is arranged management control frame acknowledgement bit, for receive one without serial number manage control frame confirm.
6. the method for claim 1, it is characterised in that:
The confirmation response of described frame is in order to indicate the reception state of frame, including receiving and not receiving.
7. the method for claim 1, it is characterised in that:
Receiving immediately after confirmation request, returning described group acknowledge response immediately.
8. method as claimed in claim 7, it is characterised in that:
Described confirmation request immediately carries one or more in the mark of one or more Business Stream, and each Business Stream
The mark of frame；
The confirmation response specifying the designated frame on data stream is returned immediately according to described confirmation request immediately.
9. the method for claim 1, it is characterised in that:
Receive and parse through carry confirm immediately instruction Frame, according to confirm immediately to indicate return immediately described group acknowledge should
Answer.
10. method as claimed in claim 9, it is characterised in that:
Resolve the frame head of described Frame, therefrom obtain and confirm instruction immediately.
11. methods as described in claim 7 or 9, it is characterised in that:
When the downlink physical cycle of this frame receives confirmation request or confirmation instruction immediately immediately, at the ascending physical signal of this frame
Cycle returns group acknowledge response；
When the ascending physical signal cycle of this frame receives confirmation request or confirmation instruction immediately immediately, at the descending thing of next frame
The reason cycle returns group acknowledge response.
12. the method for claim 1, it is characterised in that:
When resolving Frame, if parsing delayed acknowledgement instruction from Frame, then return described when available free resource
Group acknowledge response.
13. 1 kinds of devices for frame acknowledgment, it is characterised in that including:
Package module, should for the confirmation response of the frame confirming response and/or burst of the frame of non-burst is encapsulated as group acknowledge
Answer；
Sending module, is used for sending described group acknowledge response；
Wherein, described package module, for being encapsulated as business by the confirmation response of one or more frame on same Business Stream
Stream confirms response；The confirmation response of one or more described Business Stream is encapsulated as group acknowledge response；
Wherein, described package module, for encapsulating the frame head of group acknowledge response, frame and FCS: arrange in frame one or
Multiple FID chunk, described Business Stream confirms that response includes traffic stream identifier, sequence number and bitmap bitmap, wherein said
Bitmap is used for carrying the confirmation response of the multiple frame of continuous print, the confirmation response of the corresponding frame of each in bitmap, institute
State sequence number for indicating the sequence number of the frame that first bit is corresponding in described bitmap；
Wherein, described package module, burst instruction information is also set in described FID chunk, to indicate in described bitmap
Carry is the confirmation response of the frame of burst, or the confirmation response of the frame of non-burst.
14. devices as claimed in claim 13, it is characterised in that:
Described package module, for arranging each FID chunk according to the length of bitmap；The length of described bitmap is not fixed.
15. devices as claimed in claim 13, it is characterised in that:
Described package module, also arranges the length field of bitmap in described FID chunk, for indicating the length of bitmap
Degree.
16. devices as claimed in claim 13, it is characterised in that:
Described package module, also arranges length field in frame, for indicating the length sum of all FID chunk.
17. devices as claimed in claim 13, it is characterised in that:
Described package module, also arranges management control frame acknowledgement bit, for receiving one without sequence in group acknowledge response
Number management control frame confirm.
18. devices as claimed in claim 13, it is characterised in that:
The confirmation response of described frame is in order to indicate the reception state of frame, including receiving and not receiving.
19. devices as claimed in claim 13, it is characterised in that also include:
Control module, is used for receiving confirmation request immediately, and controls the encapsulation group acknowledge response of described package module, and control according to this
Make described sending module and send packaged group acknowledge response immediately.
20. devices as claimed in claim 19, it is characterised in that:
Described confirmation request immediately carries one or more in the mark of one or more Business Stream, and each Business Stream
The mark of frame；
Described control module, controls described package module by the designated frame on appointment data stream according to described confirmation request immediately
Confirm that response is encapsulated as group acknowledge response.
21. devices as claimed in claim 19, it is characterised in that:
Described control module, when confirmation request immediately described in receiving from the downlink physical cycle of this frame, controls described transmission
Module sends packaged group acknowledge response in the ascending physical signal cycle of this frame；Institute is being received from the ascending physical signal cycle of this frame
State immediately confirmation request time, control described sending module send packaged group acknowledge in the downlink physical cycle of next frame should
Answer.
22. devices as claimed in claim 13, it is characterised in that also include:
Control module, carries, for receiving, the Frame confirming to indicate immediately, according to confirming that instruction controls described Encapsulation Moulds immediately
Block encapsulation group acknowledge response, and control described sending module and send packaged group acknowledge response immediately.
23. devices as claimed in claim 22, it is characterised in that:
Described control module, encapsulates the confirmation response of unacknowledged frames all on each Business Stream for controlling described package module
For group acknowledge response.
24. devices as claimed in claim 22, it is characterised in that:
Described control module, by resolving the frame head of Frame, confirms instruction immediately described in acquisition.
25. devices as claimed in claim 22, it is characterised in that:
Described control module, receive from the downlink physical cycle of this frame carry confirm immediately instruction Frame time, control
Described sending module sends packaged group acknowledge response in the ascending physical signal cycle of this frame；From the ascending physical signal cycle of this frame
Receive carry confirm immediately instruction Frame time, control described sending module next frame the downlink physical cycle send envelope
The group acknowledge response installed.
26. devices as claimed in claim 13, it is characterised in that also include:
Control module, for receiving the Frame carrying delayed acknowledgement instruction, indicates when available free resource according to delayed acknowledgement,
Control the encapsulation group acknowledge response of described package module, and control the group acknowledge response that the transmission of described sending module is packaged.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860923.9A CN105450362A (en) | 2012-03-23 | 2012-03-23 | Frame acknowledgment method and device |
| CN201510864249.1A CN105429737B (en) | 2012-03-23 | 2012-03-23 | A kind of method and apparatus for frame acknowledgment |
| CN201510863348.8A CN105406946A (en) | 2012-03-23 | 2012-03-23 | Frame confirmation method and device |
| CN201280013095.XA CN103548316B (en) | 2011-03-31 | 2012-03-23 | A kind of method and apparatus for frame acknowledgment |
Applications Claiming Priority (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110081288 | 2011-03-31 | ||
| CN2011100812886 | 2011-03-31 | ||
| CN201110081288.6 | 2011-03-31 | ||
| CN201110130194.3 | 2011-05-19 | ||
| CN2011101301943 | 2011-05-19 | ||
| CN201110130194 | 2011-05-19 | ||
| CN2011101892303 | 2011-07-06 | ||
| CN201110189230.3 | 2011-07-06 | ||
| CN201110189230.3 | 2011-07-06 | ||
| CN201210027848.4 | 2012-02-08 | ||
| CN2012100278484 | 2012-02-08 | ||
| CN201210027848 | 2012-02-08 | ||
| CN2012100530901 | 2012-03-02 | ||
| CN201210053090.1 | 2012-03-02 | ||
| CN 201210053090 CN103326827A (en) | 2011-03-31 | 2012-03-02 | Method and device for frame determination |
| PCT/CN2012/072888 WO2012130092A1 (en) | 2011-03-31 | 2012-03-23 | Method and device for use in frame acknowledgement |
| CN201280013095.XA CN103548316B (en) | 2011-03-31 | 2012-03-23 | A kind of method and apparatus for frame acknowledgment |
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| CN201510864249.1A Division CN105429737B (en) | 2012-03-23 | 2012-03-23 | A kind of method and apparatus for frame acknowledgment |
| CN201510863348.8A Division CN105406946A (en) | 2012-03-23 | 2012-03-23 | Frame confirmation method and device |
| CN201510860923.9A Division CN105450362A (en) | 2012-03-23 | 2012-03-23 | Frame acknowledgment method and device |
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| CN103548316A CN103548316A (en) | 2014-01-29 |
| CN103548316B true CN103548316B (en) | 2016-08-17 |
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| CN201280013095.XA Active CN103548316B (en) | 2011-03-31 | 2012-03-23 | A kind of method and apparatus for frame acknowledgment |
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| US20170077999A1 (en) * | 2015-09-10 | 2017-03-16 | Qualcomm Incorporated | Access point-controlled responses to uplink multi-user frames |
| CN109861801B (en) * | 2018-10-15 | 2022-12-09 | 北京新岸线移动通信技术有限公司 | Data transmission method and device |
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| CN101166186A (en) * | 2006-10-20 | 2008-04-23 | 鲍东山 | Construction method for physical layer frame of OFDM WLAN and its response method |
| CN101208896A (en) * | 2005-06-29 | 2008-06-25 | 英特尔公司 | Block acknowledgements with reduced recipient state information |
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| CN101208896A (en) * | 2005-06-29 | 2008-06-25 | 英特尔公司 | Block acknowledgements with reduced recipient state information |
| CN101166186A (en) * | 2006-10-20 | 2008-04-23 | 鲍东山 | Construction method for physical layer frame of OFDM WLAN and its response method |
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