CN102752086B - Data communication equipment and data communications method - Google Patents
Data communication equipment and data communications method Download PDFInfo
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- CN102752086B CN102752086B CN201210209625.XA CN201210209625A CN102752086B CN 102752086 B CN102752086 B CN 102752086B CN 201210209625 A CN201210209625 A CN 201210209625A CN 102752086 B CN102752086 B CN 102752086B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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Abstract
The invention provides a kind of data communication equipment and method, wherein device comprises: Service Processing Module, the multiple Frame of continuous reception, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, its length n represents the maximum quantity of the Frame that transmit leg sends continuously, if the quantity of the Frame that transmit leg sends continuously is n-bit position, when the value of the kth bit in multiple Frame indicating bit is the first value, represent that a kth Frame is completely received, and/or the value of kth bit is when being the second value, represent that a kth Frame is not completely received, compression blocks acknowledge message frame is sent by radio receiving transmitting module, radio receiving transmitting module, for interaction data outside with data communication equipment.By the present invention, can make access point or terminal after receiving the Frame that transmit leg sends continuously, utilize compression blocks acknowledgement frame as acknowledge message, decrease the number of times that transmit leg replys acknowledge message frame, be beneficial to power saving.
Description
Technical field
The present invention relates to communication technical field, in particular to data communication equipment and data communications method.
Background technology
In IEEE(IEEE-USA) in 802.11, transmit leg sends Frame to recipient, at frame head FC(framecontrol, frame control domain) QoS(service quality) ACKpolicy(in territory confirms strategy) in subdomain, identify with " 0 " or " 1 " and reply ACK(confirmation the need of recipient) message, in general, this subdomain is set to " 1 ", represent that recipient replys ACK to transmit leg, confirm that Frame is by complete reception.Under existing standard, the complete frame structure of ACK as shown in Figure 1.
In order to reduce the number of times that ACK replys, that is transmit leg sends a Frame, recipient need not reply an ACK frame, after transmit leg can send repeatedly Frame, recipient replys an ACK frame, the BlockACK(BlockAcknowledgment of 802.11 definition that Here it is, block confirms) mechanism, its MAC(media access control) frame part definition format is as shown in Figure 2.
As shown in Figure 2, BlockACKstartingsequencecontrol(block confirms to start sequence and controls) represent that Frame starts the sequence number transmitted, BlockAckBitmap(block confirms bitmap) be the vector of 128 byte lengths, be made up of " 0 ", " 1 ", if the n in Bitmap is set to " 0 ", represent from starting sequence and start to add that the received side of this Frame of n receives, be set to " 1 " and represent from starting sequence and start to add that this Frame of n is received square receiving.
In 802.11 newly established working group 11ah, in order to allow AP(AccessPoint, access point) and STA(Station, terminal/website) further power saving, define new ACK form, be called the short confirmation of ShortACK() frame, namely use the SIG(signal in ShortACK in physics frame head) territory carrys out the effect of mac frame in alternative existing ACK, concrete form is as shown in Figure 3.
The SIG territory form of ShortACK is as shown in the table:
In this table, the structure of MCS, AckIndication, CRC and Tail is determined, and remainder is then other some territories be redefined.
Although propose the scheme of short ACK in 11ah, be convenient to STA and AP power saving, but how not use short ACK to make definition to realize BlockACK block acknowledgement frame, if STA and AP will use block acknowledgement frame mechanism based on the short ACK frame of use, only cannot realize according to the definition of above table.
Therefore, need a kind of new technical scheme, can make the access point in wireless network or terminal after receiving the Frame that transmit leg sends continuously, utilize compression blocks acknowledge message frame as the acknowledge message returning to transmit leg, its Frame sent continuously of the whether complete reception of notice transmit leg, is conducive to ensureing that receiving-transmitting sides saves electricity.
Summary of the invention
Technical problem to be solved by this invention is, a kind of new technical scheme is provided, can make the access point in wireless network or terminal after receiving the Frame that transmit leg sends continuously, utilize compression blocks acknowledge message frame as the acknowledge message returning to transmit leg, its Frame sent continuously of the whether complete reception of notice transmit leg, is conducive to ensureing that receiving-transmitting sides saves electricity.
In view of this, the invention provides a kind of data communication equipment, comprise: Service Processing Module, multiple Frame is received continuously by radio receiving transmitting module, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent that a kth Frame that described transmit leg sends is by the complete reception of described Service Processing Module, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described Service Processing Module, described compression blocks acknowledge message frame is sent by described radio receiving transmitting module, described radio receiving transmitting module, for interaction data outside with described data communication equipment.In this technical scheme, data communication equipment can be router, mobile phone, panel computer, the equipment such as notebook computer, Service Processing Module is equivalent to the chip processing wireless local area network service, radio receiving transmitting module is equivalent to the antenna of transmitting/receiving wireless local area network signal, can be used as STA or AP, after receiving the Frame that transmit leg sends continuously, can notify that whether the other side is by complete for each Frame reception by compression blocks acknowledge message frame, do not need to use existing BlockACK, also reply after not needing to receive each Frame, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that recipient have received 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, preferably, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message frame can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, preferably, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select what can play mark action to be SIG-B part in SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, preferably, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, preferably, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described Service Processing Module, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described Service Processing Module, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, preferably, described Service Processing Module also records the number of the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, recipient by the value of Frame indicating bit, indicate the not complete reception of certain Frame, or transmit leg can not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so recipient just records transmit leg and have sent 26 Frames continuously.
In technique scheme, preferably, described business receiver module also receives the Frame of not complete reception again by described radio receiving transmitting module.In this technical scheme, be not completely received if there is Frame, then can again receive once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so recipient should receive the first Frame again, the second Frame and the 3rd Frame.
The present invention also provides a kind of data communications method, comprising: receive multiple Frame continuously, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient, send described compression blocks acknowledge message frame.In this technical scheme, after receiving the Frame that transmit leg sends continuously, can notify that whether the other side is by complete for each Frame reception by compression blocks acknowledge message frame, do not need to use existing BlockACK, also reply after not needing to receive each Frame, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that recipient have received 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, preferably, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message frame can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, preferably, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play mark action is SIG-B part in SIG territory, and it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, preferably, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, preferably, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, preferably, also comprise: the number recording the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, recipient by the value of Frame indicating bit, indicate the not complete reception of certain Frame, or transmit leg can not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so recipient just records transmit leg and have sent 26 Frames continuously.
In technique scheme, preferably, also comprise: the Frame again receiving not complete reception.In this technical scheme, be not completely received if there is Frame, then can again receive once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so recipient should receive the first Frame again, the second Frame and the 3rd Frame.
The present invention also provides a kind of data communication equipment, comprise: Service Processing Module, generate multiple Frame, and send described multiple Frame continuously by radio receiving transmitting module, and receive compression blocks acknowledge message frame by described radio receiving transmitting module, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that described Service Processing Module sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described Service Processing Module sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described Service Processing Module sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient, described radio receiving transmitting module, for interaction data outside with described data communication equipment.In this technical scheme, data communication equipment can be router, mobile phone, panel computer, the equipment such as notebook computer, Service Processing Module is equivalent to the chip processing wireless local area network service, radio receiving transmitting module is equivalent to the antenna of transmitting/receiving wireless local area network signal, can be used as STA and send Frame, and the compression blocks message authentication frame can replied by recipient judges to notify that whether the other side is by complete for each Frame reception, do not need to receive existing BlockACK, also message need do not received the confirmation after each Frame of transmission, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that transmit leg have sent 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, preferably, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, preferably, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play the SIG-B part that mark action is SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, preferably, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, preferably, if the quantity of the Frame that described Service Processing Module sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described Service Processing Module does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, preferably, described Service Processing Module also records the number of the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, can according to the value of Frame indicating bit in compression blocks acknowledge message frame, and judgement is the not complete reception of certain Frame, or transmit leg does not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so transmit leg is just recorded and be have sent 26 Frames continuously.
In technique scheme, preferably, described business module also resends by described radio receiving transmitting module the Frame that described recipient does not have complete reception.In this technical scheme, if there is the Frame not complete reception in received side, then can resend once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so transmit leg should resend the first Frame, the second Frame and the 3rd Frame.
The present invention also provides a kind of data communications method, comprising: generate multiple Frame, and sends described multiple Frame continuously, receive compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit of described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent that a described kth Frame is not completely received.In this technical scheme, the compression blocks acknowledge message frame can replied by recipient judges to notify that whether the other side is by complete for each Frame reception, do not need to receive existing BlockACK, also need not receive the confirmation message after each Frame of transmission, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that transmit leg have sent 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, preferably, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message frame can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, preferably, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play the SIG-B part that mark action is SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, preferably, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, preferably, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, preferably, also comprise: the number recording the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, can according to the value of Frame indicating bit in compression blocks acknowledge message frame, and judgement is the not complete reception of certain Frame, or transmit leg does not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so transmit leg is just recorded and be have sent 26 Frames continuously.
In technique scheme, preferably, also comprise: resend the Frame that described recipient does not have complete reception.In this technical scheme, if there is the Frame not complete reception in received side, then can resend once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so transmit leg should resend the first Frame, the second Frame and the 3rd Frame.
By above technical scheme, data communication equipment and data communications method can be realized, can make the access point in wireless network or terminal after receiving the Frame that transmit leg sends continuously, utilize compression blocks acknowledgement frame as the acknowledge message returning to transmit leg, its Frame sent continuously of the whether complete reception of notice transmit leg, is conducive to ensureing that receiving-transmitting sides saves electricity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the confirmation message frame in prior art;
Fig. 2 is the structural representation of the block acknowledge message frame in prior art;
Fig. 3 is the contrast schematic diagram of confirmation message frame in prior art and compression blocks acknowledge message frame;
Fig. 4 is the block diagram of data communication equipment according to an embodiment of the invention;
Fig. 5 is the flow chart of data communications method according to an embodiment of the invention;
Fig. 6 is the block diagram of data communication equipment according to an embodiment of the invention;
Fig. 7 is the flow chart of data communications method according to an embodiment of the invention;
Fig. 8 is the workflow diagram of data notification device according to an embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 4 is the block diagram of data communication equipment according to an embodiment of the invention.
As shown in Figure 4, the invention provides a kind of data communication equipment 400, comprise: Service Processing Module 402, multiple Frame is received continuously by radio receiving transmitting module 404, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent that a kth Frame that described transmit leg sends is by the complete reception of described Service Processing Module 402, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described Service Processing Module 402, described compression blocks acknowledge message frame is sent by described radio receiving transmitting module 404, described radio receiving transmitting module 404, for the outside interaction data of described data communication equipment 400.In this technical scheme, data communication equipment 400 can be router, mobile phone, panel computer, the equipment such as notebook computer, Service Processing Module 402 is equivalent to the chip processing wireless local area network service, radio receiving transmitting module 404 is equivalent to the antenna of transmitting/receiving wireless local area network signal, can be used as STA or AP, after receiving the Frame that transmit leg sends continuously, can notify that whether the other side is by complete for each Frame reception by compression blocks acknowledge message frame, do not need to use existing BlockACK, also reply after not needing to receive each Frame, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that recipient have received 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select what can play mark action to be the SIG-B part in SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described Service Processing Module 402, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described Service Processing Module 402, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, described Service Processing Module 402 also records the number of the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, recipient by the value of Frame indicating bit, indicate the not complete reception of certain Frame, or transmit leg can not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so recipient just records transmit leg and have sent 26 Frames continuously.
In technique scheme, described business receiver module 402 also receives the Frame of not complete reception again by described radio receiving transmitting module.In this technical scheme, be not completely received if there is Frame, then can again receive once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so recipient should receive the first Frame again, the second Frame and the 3rd Frame.
Fig. 5 is the flow chart of data communications method according to an embodiment of the invention.
As shown in Figure 5, the present invention also provides a kind of data communications method, comprising: step 502, receives multiple Frame continuously, step 504, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient, step 506, sends described compression blocks acknowledge message frame.In this technical scheme, after receiving the Frame that transmit leg sends continuously, can notify that whether the other side is by complete for each Frame reception by compression blocks acknowledge message frame, do not need to use existing BlockACK, also reply after not needing to receive each Frame, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that recipient have received 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play mark action is SIG-B part in SIG territory, and it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, also comprise: the number recording the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, recipient by the value of Frame indicating bit, indicate the not complete reception of certain Frame, or transmit leg can not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so recipient just records transmit leg and have sent 26 Frames continuously.
In technique scheme, also comprise: the Frame again receiving not complete reception.In this technical scheme, be not completely received if there is Frame, then can again receive once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein, the value of first three bit is " 0 ", and so recipient should receive the first Frame again, the second Frame and the 3rd Frame.
Fig. 6 is the block diagram of data communication equipment according to an embodiment of the invention.
As shown in Figure 6, the present invention also provides a kind of data communication equipment 600, comprise: Service Processing Module 602, generate multiple Frame, and send described multiple Frame continuously by radio receiving transmitting module 604, and receive compression blocks acknowledge message frame by described radio receiving transmitting module 604, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that described Service Processing Module 602 sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described Service Processing Module 602 sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described Service Processing Module 602 sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient, described radio receiving transmitting module 604, for the outside interaction data of described data communication equipment 600.In this technical scheme, data communication equipment 600 can be router, mobile phone, panel computer, the equipment such as notebook computer, Service Processing Module 602 is equivalent to the chip processing wireless local area network service, radio receiving transmitting module 604 is equivalent to the antenna of transmitting/receiving wireless local area network signal, can be used as STA and send Frame, and the compression blocks acknowledge message frame can replied by recipient judges to notify that whether the other side is by complete for each Frame reception, do not need to receive existing BlockACK, also message need do not received the confirmation after each Frame of transmission, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that transmit leg have sent 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message frame can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play the SIG-B part that mark action is SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, if the quantity of the Frame that described Service Processing Module 602 sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described Service Processing Module 602 does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, described Service Processing Module 602 also records the number of the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, can according to the value of Frame indicating bit in compression blocks acknowledge message frame, and judgement is the not complete reception of certain Frame, or transmit leg does not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so transmit leg is just recorded and be have sent 26 Frames continuously.
In technique scheme, described business module 602 also resends by described radio receiving transmitting module the Frame that described recipient does not have complete reception.In this technical scheme, if there is the Frame not complete reception in received side, then can resend once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein, the value of first three bit is " 0 ", and so transmit leg should resend the first Frame, the second Frame and the 3rd Frame.
Fig. 7 is the flow chart of data communications method according to an embodiment of the invention.
As shown in Figure 7, the present invention also provides a kind of data communications method, comprising: step 702, generates multiple Frame, and sends described multiple Frame continuously, step 704, receive compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit of described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent that a described kth Frame is not completely received.In this technical scheme, the compression blocks acknowledge message frame can replied by recipient judges to notify that whether the other side is by complete for each Frame reception, do not need to receive existing BlockACK, also need not receive the confirmation message after each Frame of transmission, can ensure that receiving-transmitting sides all saves electricity.Wherein, n and k is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, represent that transmit leg have sent 26 Frames continuously, wherein the value of first three bit is " 0 ", represent first Frame, second Frame and the 3rd the Frame not complete reception in received side.
In technique scheme, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.In this technical scheme, the physics frame head of compression blocks acknowledge message frame can be utilized to identify.In this technical scheme, compression blocks acknowledge message frame only includes LTF (longtrainingframe), STF (shorttrainingframe) and SIG (signal) part.
In technique scheme, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.In this technical scheme, particularly, can select and can play the SIG-B part that mark action is SIG territory, it will be appreciated by those skilled in the art that and be only example herein, other position equally may as Frame indicating bit.
In technique scheme, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.In this technical scheme, in different channels, the length of SIG-B is also different, is respectively 26,27,29 bits, can using all as Frame indicating bit.
In technique scheme, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame.In this technical scheme, if transmit leg does not send the Frame identical with data frame identification bit quantity, then the spare bits of Frame indicating bit can be unified to be set to " 1 " or " 0 ".Wherein, m is positive integer.Such as, described multiple Frame indicating bit is " 00011111111111111111111111 ", wherein front 12 bits represent that the quantity of the Frame that transmit leg sends continuously is 12, rear 14 bits represent it is the number of data frames be not sent out, wherein the first Frame, second Frame and the 3rd Frame are not completely received, and the Frame be not sent out indicates with " 1 ".
In technique scheme, also comprise: the number recording the Frame that described transmit leg sends continuously.In this technical scheme, the Frame number sent continuously by record transmit leg, can according to the value of Frame indicating bit in compression blocks acknowledge message frame, and judgement is the not complete reception of certain Frame, or transmit leg does not send corresponding data frame.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", its length is 26 bits, and so transmit leg is just recorded and be have sent 26 Frames continuously.
In technique scheme, also comprise: resend the Frame that described recipient does not have complete reception.In this technical scheme, if there is the Frame not complete reception in received side, then can resend once.Such as, if multiple Frame indicating bit is " 00011111111111111111111111 ", wherein the value of first three bit is " 0 ", and so transmit leg should resend the first Frame, the second Frame and the 3rd Frame.
Fig. 8 is the workflow diagram of data communication equipment according to an embodiment of the invention.
First, the operation principle of the data communication equipment in the present embodiment is described:
In the substandard physics frame head of 11ah, physics frame head SIG(signal) territory is divided into two parts, i.e. SIG-A and SIG-B, wherein, the concrete structure of SIG-A is as shown in the form in background technology, and SIG-B is different according to the difference of channel, is 26 bits in 2MHz channel, be 27 bits in 4MHz channel, be 29 bits in 8MHz and 16MHz channel.In the present embodiment, select the number representing Frame with these bits, specific as follows:
Define a kind of new BlockACK mechanism, compression blocks affirmation mechanism can be called, to consider in 11ah AP wide coverage and message transmission rate low, so AP can not with a STA continual continuous transmission Frame within the specific time, so adopt the figure place of the SIG-B in physics frame head to be the number of maximum continuous transmission Frame.
Such as, in 2MHz channel, recipient and transmit leg allow the number sending Frame to be continuously 26, if there is Frame not to be completely received in process of transmitting, available " 0 " is marked, and is completely received, uses one token, such as: if the value in SIG-B territory is specially " 01111111111111111111111110 ", then represent in first Frame and the 26th Frame transmitting procedure and be not completely received, transmit leg needs to retransmit; If the Frame sent does not have 26, transmit leg and recipient respectively write down the number of transmitting data frame, remaining part represents with " 1 ", for example transmit altogether 11 bags, if SIG-B territory is " 01011111111111111111111111 ", there occurs mistake when representing the 1st bag and the 3rd data frame transfer, the indicating bit of those 15 Frames be not transmitted also represents with " 1 ".
In 4MHz channel, recipient and transmit leg allow the number sending Frame to be continuously 27, and in 8MHz and 16MHz channel, recipient and transmit leg allow the number sending Frame to be continuously 29, and concrete operations coexist in 2MHz channel and operate.
Based on above technical scheme, the workflow of transmit leg and recipient as shown in Figure 8:
Step 802, supposes that, in 2MHz channel, sending direction recipient sends Frame continuously, the quantity forwarded of transmit leg and recipient record data frame separately;
Step 804, sends enough 26 Frames at transmit leg, or after total data frame is sent, recipient generates compression blocks acknowledge message frame (can be ShortACK), and returns to transmit leg;
Step 806, transmit leg resolves the SIG part in compression blocks acknowledge message frame, obtains value wherein;
Step 808, for the n-th bit, if its value is " 0 ", then represents that the n-th Frame that transmit leg sends is not completely received, and needs to resend this Frame;
Step 810, if the value of the n-th bit is " 1 ", judges whether to send continuously to equal 26 Frames further;
Step 812, equals 26 Frames if sent continuously, then represents that the n-th Frame is completely received;
Step 814, if sent less than 26 Frames continuously, then ignores this value.
It should be noted that above-mentioned transmit leg and recipient can be STA and AP being arranged in WLAN, also can be carry out data interaction between two terminals.Although describe technical scheme of the present invention for only 2MHz channel, those skilled in the art should connect, and technical solution of the present invention stands good in other channels.
In sum, by technical scheme of the present invention, achieve data communication equipment and data communications method, solve the problem that the short-and-medium acknowledgement frame of existing 11ah does not solve block affirmation mechanism, be conducive to STA and AP further power saving.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. a data communication equipment, is characterized in that, comprising:
Service Processing Module, multiple Frame is received continuously by radio receiving transmitting module, generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent that a kth Frame that described transmit leg sends is by the complete reception of described Service Processing Module, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described Service Processing Module, described compression blocks acknowledge message frame is sent by described radio receiving transmitting module,
Described radio receiving transmitting module, for interaction data outside with described data communication equipment;
Wherein, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described Service Processing Module, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described Service Processing Module, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame,
Wherein, described Service Processing Module also records the number of the Frame that described transmit leg sends continuously.
2. data communication equipment according to claim 1, is characterized in that, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.
3. data communication equipment according to claim 2, is characterized in that, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.
4. data communication equipment according to claim 1, it is characterized in that, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.
5. data communication equipment according to any one of claim 1 to 4, is characterized in that, described Service Processing Module also receives the Frame of not complete reception again by described radio receiving transmitting module.
6. a data communications method, is characterized in that, comprising:
The multiple Frame of continuous reception;
Generate compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient,
Send described compression blocks acknowledge message frame;
Wherein, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame,
Wherein, described data communications method, also comprises: the number recording the Frame that described transmit leg sends continuously.
7. data communications method according to claim 6, is characterized in that, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.
8. data communications method according to claim 7, is characterized in that, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.
9. data communications method according to claim 6, it is characterized in that, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.
10. the data communications method according to any one of claim 6 to 9, is characterized in that, also comprises:
Again the Frame of not complete reception is received.
11. 1 kinds of data communication equipments, is characterized in that, comprising:
Service Processing Module, generate multiple Frame, and send described multiple Frame continuously by radio receiving transmitting module, and receive compression blocks acknowledge message frame by described radio receiving transmitting module, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that described Service Processing Module sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described Service Processing Module sends continuously is n, when the value of the kth bit in described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described Service Processing Module sends, and/or the value of described kth bit is when being the second value, represent a described kth Frame not by the complete reception of described recipient,
Described radio receiving transmitting module, for interaction data outside with described data communication equipment;
Wherein, if the quantity of the Frame that described Service Processing Module sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described Service Processing Module does not send m+1 to the n-th Frame,
Wherein, described Service Processing Module also records the number of the Frame that described transmit leg sends continuously.
12. data communication equipments according to claim 11, is characterized in that, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.
13. data communication equipments according to claim 12, is characterized in that, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.
14. data communication equipments according to claim 11, it is characterized in that, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.
15., according to claim 11 to the data communication equipment according to any one of 14, is characterized in that, described Service Processing Module also resends by described radio receiving transmitting module the Frame that described recipient does not have complete reception.
16. 1 kinds of data communications methods, is characterized in that, comprising:
Generate multiple Frame, and send described multiple Frame continuously;
Receive compression blocks acknowledge message frame, multiple Frame indicating bit is comprised in described compression blocks acknowledge message frame, the length of described multiple Frame indicating bit represents the maximum quantity of the Frame that transmit leg sends continuously, the length of described multiple Frame indicating bit is n-bit position, if the quantity of the Frame that described transmit leg sends continuously is n, when the value of the kth bit of described multiple Frame indicating bit is the first value, represent a kth Frame complete reception in received side that described transmit leg sends, and/or the value of described kth bit is when being the second value, represent that a described kth Frame is not completely received,
Wherein, if the quantity of the Frame that described transmit leg sends continuously is m, and described m is less than described n, then the value of described kth bit be the first value and k is less than or equal to m time, represent that a described kth Frame is by the complete reception of described recipient, and/or the value of described kth bit be the second value and k is less than or equal to m time, represent a described kth Frame not by the complete reception of described recipient, m+1 bit to the n-th bit of described multiple Frame indicating bit be described first value or described second value time, represent that described transmit leg does not send m+1 to the n-th Frame,
Wherein, described data communications method, also comprises: the number recording the Frame that described transmit leg sends continuously.
17. data communications methods according to claim 16, is characterized in that, described multiple Frame indicating bit comprises the multiple positions in the physics frame head of described compression blocks acknowledge message frame.
18. data communications methods according to claim 17, is characterized in that, described multiple Frame indicating bit comprises multiple positions of signal domain in the described physics frame head of described compression blocks acknowledge message frame.
19. data communications methods according to claim 16, it is characterized in that, in 2MHz channel, the length of described multiple Frame indicating bit is 26 bits, in 4MHz channel, the length of described multiple Frame indicating bit is 27 bits, and in 8MHz and 16MHz channel, the length of described multiple Frame indicating bit is 29 bits.
20., according to claim 16 to the data communications method according to any one of 19, is characterized in that, also comprise:
Resend the Frame that described recipient does not have complete reception.
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| CN103391603B (en) * | 2013-07-04 | 2016-12-28 | 苏州博联科技有限公司 | The method of big data message low power consumption transmission in wireless sensor network |
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| CN113497679A (en) * | 2021-06-05 | 2021-10-12 | 南京一步智能科技有限公司 | Efficient feedback confirmation method suitable for LoRa transmission |
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