CN106060875A - Communication method, communication apparatus and sites in wireless local area network - Google Patents
Communication method, communication apparatus and sites in wireless local area network Download PDFInfo
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- CN106060875A CN106060875A CN201610319125.XA CN201610319125A CN106060875A CN 106060875 A CN106060875 A CN 106060875A CN 201610319125 A CN201610319125 A CN 201610319125A CN 106060875 A CN106060875 A CN 106060875A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides a communication method, a communication apparatus and sites in a wireless local area network. The wireless local area network communication method includes the following steps: generating a data frame which includes a MSDU and a F-MSDU which are arranged behind the MSDU, the F-MSDU being intended for maximizing effective data which are transmitted by the data frame, the MSDU carrying a first traffic identifier which expresses the transmission priority of the MSDU, the F-MSDU carrying a second traffic identifier which expresses the transmission priority of the F-MSDU, the second traffic identifier being the same as the first traffic identifier; and transmitting the data frame. The technical solution of the invention enables the TID of added F-MSDU to be defined to be the same as the TID of the MSDU in the data frame, can further guarantee the transmission priority of the entire data frame, meets communication requirements for 802.11ax, and at the same time reduces waste of communication resources, and is conductive to handling capacity of the area.
Description
Technical field
The present invention relates to communication technical field, in particular to the communication means, a kind of wireless of a kind of WLAN
The communicator of LAN and a kind of website.
Background technology
In May, 2013,802.11 have set up Wi-Fi of future generation (Wireless Fidelity, Wireless Fidelity) technology
Seminar HEW (High efficiency WLAN, efficient WLAN), i.e. 802.11ax, main research point is to improve
The handling capacity of existing Wi-Fi technology, effective utilization ratio of raising frequency spectrum, raising Consumer's Experience and service quality Q oE
(Quality of Experience), and realize adapting to the communication environment of more crypto set than existing Wi-Fi technology.
The utilization rate that 802.11ax will use multi-user technology to improve frequency spectrum, in the formulation process of standard, AP
(Access Point, access point) can send trigger frame (i.e. communication resource distribution message frame) and come to STA (Station, website)
Resources allocation is concrete as it is shown in figure 1, after each STA receives trigger frame, can pass according to the resource of AP distribution in trigger frame
Defeated upstream data.But the size transmitted during upstream data due to each STA can be different, therefore can be at MSDU (Medium
Access Control (MAC) Service Data Unit, MAC Service Data Unit) after by increasing F-MSDU
The size of data that (Fragmentation MSDU can be referred to as MSDU piecemeal) makes all users transmit is consistent, specifically
As in figure 2 it is shown, this makes it possible to better profit from the transfer resource that AP is distributed, decrease the waste of resource.
But, F-MSDU is not used by current standard agreement which kind of transmission means and transmission strategy make specifically
Regulation, it is therefore desirable to the definition transmission means of F-MSDU and strategy, to be applicable to the communication environment of 802.11ax.
Summary of the invention
The present invention is based at least one above-mentioned technical problem, it is proposed that the communication party of a kind of new WLAN
Case so that the TID of the F-MSDU increased in Frame is defined as identical with the TID of the MSDU in Frame, and then can protect
Demonstrate,prove the transmission priority of whole Frame, meet the communication requirement of 802.11ax, decrease the waste of the communication resource simultaneously,
Be conducive to improving the handling capacity in region.
In view of this, according to the first aspect of the invention, it is proposed that the communication means of a kind of WLAN, including: raw
Become Frame, described Frame includes MSDU and is positioned at the F-MSDU after described MSDU, described F-MSDU and is used for making institute
The valid data stating data frame transfer maximize, and carry the first biography of the transmission priority representing described MSDU in described MSDU
Defeated mark, described F-MSDU carries the second transmission mark of the transmission priority representing described F-MSDU, described second transmission
Identify identical with described first transmission mark；Send described Frame.
In this technical scheme, the first transmission mark carried with MSDU by the second transmission mark making F-MSDU carry
Identical so that F-MSDU can have the transmission priority as MSDU, and then ensure that the transmission of whole Frame is excellent
First level, meets the communication requirement of 802.11ax, on this basis, makes the valid data of data frame transfer by adding F-MSDU
Maximize so that website can make full use of the transfer resource that AP is distributed, and decreases the waste of resource, is conducive to improving region
Handling capacity.Wherein, transmission mark is Traffic Identifier, referred to as TID, and the value of transmission mark is used for representing
The transmission priority of MSDU or F-MSDU.
Additionally, described Frame is the Frame that uplink data frames, i.e. website are sent to access point；Separately exist, described number
Can also be the Frame that website is sent to set up the website of Ad hoc network in Ad hoc (point-to-point) network according to frame.
Non-limiting as one embodiment of the present of invention, when STA needs to send data, if the transfer resource of AP distribution
The data of 20M size can be transmitted, and the size of data of this needs transmission of STA is that (data of 18M size have been divided into 18M
Several MSDU), then in order to avoid the waste of transfer resource, STA can need to intercept one the data of transmission from next time
Divide (such as 2M) to be sent by Frame together with aforesaid 18M data as F-MSDU, so make transmission in Frame
Valid data have reached to maximize.Meanwhile, in order to ensure the transmission priority of whole Frame, the TID of F-MSDU can be set
It is set to identical with the TID of MSDU in Frame.
In one embodiment of the invention, carrying flag in described Frame, described flag is used for indicating institute
State and Frame includes described F-MSDU.
In this embodiment, indicate Frame include F-MSDU by carrying flag in a data frame so that
Recipient, when receiving Frame, can be known the existence of F-MSDU, and then ensure that recipient couple according to this flag
The correct parsing of F-MSDU.
In another embodiment of the present invention, before sending described Frame, the communication party of described WLAN
Method, also includes: communicate with the recipient of described Frame, to notify to comprise in described Frame to described recipient
State F-MSDU.
In this embodiment, communicated by the recipient with Frame, to include F-in its notice Frame
MSDU so that recipient can the existence of F-MSDU in explicit data frame, and then ensure that recipient is receiving Frame
Correct parsing to F-MSDU afterwards.
In any of the above-described technical scheme, it is preferable that each F-MSDU in described Frame has number information.
In this technical scheme, owing to the quantity of F-MSDU is probably multiple, therefore by making each F-MSDU have volume
Number information, enabling identify the order of multiple F-MSDU, and then ensure that recipient comes according to the numbering of multiple F-MSDU
The multiple F-MSDU received are integrated and obtains complete data.
According to the second aspect of the invention, it is also proposed that the communicator of a kind of WLAN, including: signal generating unit,
For generating Frame, described Frame includes MSDU and is positioned at the F-MSDU after described MSDU, described F-MSDU use
Maximize in the valid data making described data frame transfer, described MSDU carries the transmission priority representing described MSDU
First transmission mark, described F-MSDU carries the second transmission of the transmission priority representing described F-MSDU and identifies, and described the
Two transmission marks are identical with described first transmission mark；Transmitting element, is used for sending described Frame.
In this technical scheme, the first transmission mark carried with MSDU by the second transmission mark making F-MSDU carry
Identical so that F-MSDU can have the transmission priority as MSDU, and then ensure that the transmission of whole Frame is excellent
First level, meets the communication requirement of 802.11ax, on this basis, makes the valid data of data frame transfer by adding F-MSDU
Maximize so that website can make full use of the transfer resource that AP is distributed, and decreases the waste of resource, is conducive to improving region
Handling capacity.Wherein, transmission mark is Traffic Identifier, referred to as TID, and the value of transmission mark is used for representing
The transmission priority of MSDU or F-MSDU.
Additionally, described Frame is the Frame that uplink data frames, i.e. website are sent to access point；Separately exist, described
Frame can also be the Frame that website is sent to set up the website of Ad hoc network in Ad hoc network.
Non-limiting as one embodiment of the present of invention, when STA needs to send data, if the transfer resource of AP distribution
The data of 20M size can be transmitted, and the size of data of this needs transmission of STA is that (data of 18M size have been divided into 18M
Several MSDU), then in order to avoid the waste of transfer resource, STA can need to intercept one the data of transmission from next time
Divide (such as 2M) to be sent by Frame together with aforesaid 18M data as F-MSDU, so make transmission in Frame
Valid data have reached to maximize.Meanwhile, in order to ensure the transmission priority of whole Frame, the TID of F-MSDU can be set
It is set to identical with the TID of MSDU in Frame.
In one embodiment of the invention, carrying flag in described Frame, described flag is used for indicating institute
State and Frame includes described F-MSDU.
In this embodiment, indicate Frame include F-MSDU by carrying flag in a data frame so that
Recipient, when receiving Frame, can be known the existence of F-MSDU, and then ensure that recipient couple according to this flag
The correct parsing of F-MSDU.
In another embodiment of the present invention, also include: communication unit, for sending described number at described transmitting element
Before frame, communicate with the recipient of described Frame, to notify described Frame comprises to described recipient
State F-MSDU.
In this embodiment, communicated by the recipient with Frame, to include F-in its notice Frame
MSDU so that recipient can the existence of F-MSDU in explicit data frame, and then ensure that recipient is receiving Frame
Correct parsing to F-MSDU afterwards.
In any of the above-described technical scheme, it is preferable that each F-MSDU in described Frame has number information.
In this technical scheme, owing to the quantity of F-MSDU is probably multiple, therefore by making each F-MSDU have volume
Number information, enabling identify the order of multiple F-MSDU, and then ensure that recipient comes according to the numbering of multiple F-MSDU
The multiple F-MSDU received are integrated and obtains complete data.
According to the third aspect of the invention we, it is also proposed that a kind of website, including: as described in above-mentioned any one technical scheme
The communicator of WLAN.
By above technical scheme so that the TID of the F-MSDU increased in Frame is defined as with in Frame
The TID of MSDU is identical, and then ensure that the transmission priority of whole Frame, meets the communication requirement of 802.11ax, with
Time decrease the waste of the communication resource, be conducive to improving the handling capacity in region.
Accompanying drawing explanation
Fig. 1 shows the schematic flow diagram of the resource distribution between access point and website and data transmission；
Fig. 2 shows and adds F-MSDU in a data frame so that the consistent schematic diagram of the size of data of all station transmission；
Fig. 3 shows the schematic flow diagram of the communication means of WLAN according to first embodiment of the invention；
Fig. 4 shows the schematic block diagram of the communicator of WLAN according to an embodiment of the invention；
Fig. 5 shows the schematic block diagram of website according to an embodiment of the invention；
Fig. 6 shows the schematic flow diagram of the communication means of the WLAN of second embodiment according to the present invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, real with concrete below in conjunction with the accompanying drawings
The present invention is further described in detail by mode of executing.It should be noted that in the case of not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but, the present invention also may be used
Implementing to use other to be different from other modes described here, therefore, protection scope of the present invention is not by described below
The restriction of specific embodiment.
Fig. 3 shows the schematic flow diagram of the communication means of WLAN according to first embodiment of the invention.
As it is shown on figure 3, the communication means of WLAN according to first embodiment of the invention, including:
Step S302, generates Frame, includes MSDU and be positioned at the F-MSDU after described MSDU in described Frame,
Described F-MSDU, for making the valid data of described data frame transfer maximize, carries in described MSDU and represents described MSDU's
First transmission mark of transmission priority, described F-MSDU carries the second transmission of the transmission priority representing described F-MSDU
Mark, described second transmission mark is identical with described first transmission mark.
In step s 302, the first transmission mark phase carried with MSDU by the second transmission mark making F-MSDU carry
With so that F-MSDU can have the transmission priority as MSDU, and then ensure that the transmission preferences of whole Frame
Level, meets the communication requirement of 802.11ax, on this basis, makes the valid data of data frame transfer by adding F-MSDU
Bigization so that website can make full use of the transfer resource that AP is distributed, decreases the waste of resource, is conducive to improving region
Handling capacity.Wherein, transmission mark is Traffic Identifier, referred to as TID, and the value of transmission mark is used for representing MSDU
Or the transmission priority of F-MSDU.
Additionally, described Frame is the Frame that uplink data frames, i.e. website are sent to access point；Separately exist, described
Frame can also be the Frame that website is sent to set up the website of Ad hoc network in Ad hoc network.
Non-limiting as one embodiment of the present of invention, when STA needs to send data, if the transfer resource of AP distribution
The data of 20M size can be transmitted, and the size of data of this needs transmission of STA is that (data of 18M size have been divided into 18M
Several MSDU), then in order to avoid the waste of transfer resource, STA can need to intercept one the data of transmission from next time
Divide (such as 2M) to be sent by Frame together with aforesaid 18M data as F-MSDU, so make transmission in Frame
Valid data have reached to maximize.Meanwhile, in order to ensure the transmission priority of whole Frame, the TID of F-MSDU can be set
It is set to identical with the TID of MSDU in Frame.
In one embodiment of the invention, also carrying flag in described Frame, described flag is used for indicating
Described Frame includes described F-MSDU.
In this embodiment, indicate Frame include F-MSDU by carrying flag in a data frame so that
Recipient, when receiving Frame, can be known the existence of F-MSDU, and then ensure that recipient couple according to this flag
The correct parsing of F-MSDU.
In another embodiment of the present invention, before sending described Frame, the communication party of described WLAN
Method, also includes: communicate with the recipient of described Frame, to notify to comprise in described Frame to described recipient
State F-MSDU.
In this embodiment, communicated by the recipient with Frame, to include F-in its notice Frame
MSDU so that recipient can the existence of F-MSDU in explicit data frame, and then ensure that recipient is receiving Frame
Correct parsing to F-MSDU afterwards.
In one embodiment of the invention, each F-MSDU in described Frame has number information.
In this technical scheme, owing to the quantity of F-MSDU is probably multiple, therefore by making each F-MSDU have volume
Number information, enabling identify the order of multiple F-MSDU, and then ensure that recipient comes according to the numbering of multiple F-MSDU
The multiple F-MSDU received are integrated and obtains complete data.
Step S304, sends described Frame.
Wherein, the executive agent of the communication means shown in Fig. 3 can be mobile phone or PDA (Personal Digital
Assistant, palm PC) etc..
Fig. 4 shows the schematic block diagram of the communicator of WLAN according to an embodiment of the invention.
As shown in Figure 4, the communicator 400 of WLAN according to an embodiment of the invention, including: signal generating unit
402 and transmitting element 404.
Wherein, signal generating unit 402 is used for generating Frame, described Frame includes MSDU and be positioned at described MSDU it
After F-MSDU, described F-MSDU for making the valid data of described data frame transfer maximize, described MSDU carries table
Showing the first transmission mark of the transmission priority of described MSDU, described F-MSDU carries the transmission preferences representing described F-MSDU
Second transmission mark of level, described second transmission mark is identical with described first transmission mark；Transmitting element 404 is used for sending institute
State Frame.
When implementing, signal generating unit 402 can be signal processor, central processing unit or baseband processor etc.；Send out
Sending unit 404 can be transmitter (Transmitter) or antenna.
In this technical scheme, the first transmission mark carried with MSDU by the second transmission mark making F-MSDU carry
Identical so that F-MSDU can have the transmission priority as MSDU, and then ensure that the transmission of whole Frame is excellent
First level, meets the communication requirement of 802.11ax, on this basis, makes the valid data of data frame transfer by adding F-MSDU
Maximize so that website can make full use of the transfer resource that AP is distributed, and decreases the waste of resource, is conducive to improving region
Handling capacity.Wherein, transmission mark is Traffic Identifier, referred to as TID, and the value of transmission mark is used for representing
The transmission priority of MSDU or F-MSDU.
Additionally, described Frame is the Frame that uplink data frames, i.e. website are sent to access point；Separately exist, described
Frame can also be the Frame that website is sent to set up the website of Ad hoc network in Ad hoc network.
Non-limiting as one embodiment of the present of invention, when STA needs to send data, if the transfer resource of AP distribution
The data of 20M size can be transmitted, and the size of data of this needs transmission of STA is that (data of 18M size have been divided into 18M
Several MSDU), then in order to avoid the waste of transfer resource, STA can need to intercept one the data of transmission from next time
Divide (such as 2M) to be sent by Frame together with aforesaid 18M data as F-MSDU, so make transmission in Frame
Valid data have reached to maximize.Meanwhile, in order to ensure the transmission priority of whole Frame, the TID of F-MSDU can be set
It is set to identical with the TID of MSDU in Frame.
In one embodiment of the invention, carrying flag in described Frame, described flag is used for indicating institute
State and Frame includes described F-MSDU.
In this embodiment, indicate Frame include F-MSDU by carrying flag in a data frame so that
Recipient, when receiving Frame, can be known the existence of F-MSDU, and then ensure that recipient couple according to this flag
The correct parsing of F-MSDU.
In another embodiment of the present invention, also include: communication unit, for sending described number at described transmitting element
Before frame, communicate with the recipient of described Frame, to notify described Frame comprises to described recipient
State F-MSDU.
In this embodiment, communicated by the recipient with Frame, to include F-in its notice Frame
MSDU so that recipient can the existence of F-MSDU in explicit data frame, and then ensure that recipient is receiving Frame
Correct parsing to F-MSDU afterwards.
In any of the above-described technical scheme, it is preferable that each F-MSDU in described Frame has number information.
In this technical scheme, owing to the quantity of F-MSDU is probably multiple, therefore by making each F-MSDU have volume
Number information, enabling identify the order of multiple F-MSDU, and then ensure that recipient comes according to the numbering of multiple F-MSDU
The multiple F-MSDU received are integrated and obtains complete data.
Fig. 5 shows the schematic block diagram of website according to an embodiment of the invention.
As it is shown in figure 5, website 500 according to an embodiment of the invention, including: WLAN as shown in Figure 4
Communicator 400.
In sum, technical scheme mainly propose the F-MSDU increased in a data frame should use with number
According to the TID that the MSDU in frame is the same, so ensure that the transmission quality of whole packet.Particularly may be divided into following several side
Face:
1, the transmission of F-MSDU should use the TID as the MSDU in Frame, so can simplify sender and connect
The handling process of debit.
2, the confirmation of F-MSDU numbering.
F-MSDU in Frame should be filled with according to practical situation, and needs to be numbered F-MSDU, its
Numbering can be from the beginning of 1, if before with the presence of other numbering, then directly adds 1 in numbering before.
3, the mark of F-MSDU.
Sender, before carrying out data transmission, needs to hold consultation between recipient, to notify that recipient is in transmission
Frame in have F-MSDU；Or sender carries flag in the mac frame head of whole Frame, with the number of identification transmission
According to frame has F-MSDU, when recipient carries out data parsing, the numbering of F-MSDU should be recorded.
Fig. 6 shows the schematic flow diagram of the communication means of the WLAN of second embodiment according to the present invention.
As shown in Figure 6, according to the communication means of the WLAN of second embodiment of the present invention, including:
Step 601, access point 1 sends trigger frame to website 2.Wherein trigger frame is resource allocation message frame, access point 1
Come to website 2 allocation of transmission resources by sending trigger frame to website 2.
Step 602, website 2 receives trigger frame.
Step 603, website 2 gets transfer resource from trigger frame.
Step 604, website 2 generates uplink data frames.Wherein, website 2 generate uplink data frames in include MSDU and
Being positioned at the F-MSDU after MSDU, F-MSDU maximizes at these valid data that uplink data frames can be made to transmit, and takes in MSDU
The TID that TID with F-MSDU of band carries is identical.
Step 605, website 2 sends uplink data frames.
In the embodiment shown in fig. 6, the upstream data in conjunction with technical scheme, website sent to access point
The structure of frame is illustrated.In other embodiments of the invention, as in Ad hoc network, website is sent to set up Ad
The Frame of the website of hoc network can also be applied in technical scheme proposed by the invention, i.e. this Frame and include MSDU
Maximize at these valid data that can make this data frame transfer with the F-MSDU being positioned at after MSDU, F-MSDU, MSDU takes
The TID that TID with F-MSDU of band carries is identical.
Technical scheme being described in detail above in association with accompanying drawing, the present invention proposes a kind of new WLAN
Communication plan so that the TID of the F-MSDU increased in Frame is defined as identical with the TID of the MSDU in Frame, enters
And ensure that the transmission priority of whole Frame, meet the communication requirement of 802.11ax, decrease communication money simultaneously
The waste in source, is conducive to improving the handling capacity in region.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. the communication means of a WLAN, it is characterised in that including:
Generate Frame, described Frame includes MSDU and is positioned at the F-MSDU after described MSDU, described F-MSDU use
Maximize in the valid data making described data frame transfer, described MSDU carries the transmission priority representing described MSDU
First transmission mark, described F-MSDU carries the second transmission of the transmission priority representing described F-MSDU and identifies, and described the
Two transmission marks are identical with described first transmission mark；
Send described Frame.
The communication means of WLAN the most according to claim 1, it is characterised in that carry mark in described Frame
Knowing position, described flag is used for indicating in described Frame and includes described F-MSDU.
The communication means of WLAN the most according to claim 1, it is characterised in that send described Frame it
Before, also include:
Communicate with the recipient of described Frame, to notify described Frame includes described F-to described recipient
MSDU。
The communication means of WLAN the most according to any one of claim 1 to 3, it is characterised in that described data
Each F-MSDU in frame has number information.
5. the communicator of a WLAN, it is characterised in that including:
Signal generating unit, is used for generating Frame, includes MSDU and be positioned at the F-MSDU after described MSDU in described Frame,
Described F-MSDU, for making the valid data of described data frame transfer maximize, carries in described MSDU and represents described MSDU's
First transmission mark of transmission priority, described F-MSDU carries the second transmission of the transmission priority representing described F-MSDU
Mark, described second transmission mark is identical with described first transmission mark；
Transmitting element, is used for sending described Frame.
The communicator of WLAN the most according to claim 5, it is characterised in that carry mark in described Frame
Knowing position, described flag is used for indicating in described Frame and includes described F-MSDU.
The communicator of WLAN the most according to claim 5, it is characterised in that also include:
Communication unit, before sending described Frame at described transmitting element, leads to the recipient of described Frame
Letter, to notify to include in described Frame described F-MSDU to described recipient.
8. according to the communicator of the WLAN according to any one of claim 5 to 7, it is characterised in that described data
Each F-MSDU in frame has number information.
9. a website, it is characterised in that including: the communication dress of the WLAN as according to any one of claim 5 to 8
Put.
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| CN201610319125.XA CN106060875A (en) | 2016-05-12 | 2016-05-12 | Communication method, communication apparatus and sites in wireless local area network |
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| WO2017107688A1 (en) * | 2015-12-25 | 2017-06-29 | 华为技术有限公司 | Resource indication method and apparatus based on multiple time periods |
| CN112788749A (en) * | 2019-11-06 | 2021-05-11 | 华为技术有限公司 | Data transmission method and device |
| WO2021087674A1 (en) * | 2019-11-04 | 2021-05-14 | 北京小米移动软件有限公司 | Data transmission method and apparatus, and communication device |
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