CN106068661B

CN106068661B - The device and method of frame aggregation and frame parsing

Info

Publication number: CN106068661B
Application number: CN201480076890.2A
Authority: CN
Inventors: 赵牧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2019-10-01
Anticipated expiration: 2034-04-28
Also published as: CN106068661A; WO2015164998A1

Abstract

The embodiment of the invention provides the device and methods of a kind of frame aggregation and frame parsing, the multiple MSDU for being sent to different target workbench are aggregated into an A-MSDU, the receiving end address field for using AID structure is generated according to the predicable of the AID of the different target workbench, MPDU is obtained after A-MSDU is encapsulated is sent to the receiving end workbench communicated with transmitting terminal workbench, the receiving end address field of the frame head of the received MPDU of receiving end workbench parsing, when the AID structure of the receiving end address field includes the AID of the receiving end workbench, the receiving end workbench parses the A-MSDU, it searches the MSDU of the address as a purpose its AID in the A-MSDU, when the AID structure of the receiving end address field includes the receiving end When the AID of workbench, the receiving end workbench can continue to parse A-MSDU, it searches the MSDU of the address as a purpose its AID in the A-MSDU, realizes and the multiple MSDU for being sent to different target workbench are aggregated into an A-MSDU, expand the techniques of frame aggregation use scope of A-MSDU.

Description

The device and method of frame aggregation and frame parsing

Technical field

The present invention relates to the device and methods of field of communication technology more particularly to a kind of frame aggregation and frame parsing.

Background technique

Media access control layer service data unit (MAC Service Data Unit, MSDU) is a kind of media interviews The frame structure of control layer (Media Access Control, MAC), MSDU adding purpose address, source address, a MSDU length And the media access control layer service data unit (Aggregate MSDU, A-MSDU) that supplement position post package polymerize at one Subframe, the subframe of multiple A-MSDU polymerize to obtain an A-MSDU, and A-MSDU is sealed after being added to frame head and cyclic check position Dress up a medium access control layer protocol data cell (MAC Protocol data unit, MPDU).

The MPDU that source workbench obtains after encapsulating above-mentioned A-MSDU is sent to object tables, the frame of the MPDU after encapsulation In head, receiving end address field only carries the MAC Address of an object tables, therefore, can only gather in the A-MSDU in MPDU The MSDU for closing same target workbench, cannot polymerize the MSDU of different target workbench, and the techniques of frame aggregation of A-MSDU uses model It encloses limited.

Summary of the invention

In view of this, generating the embodiment of the invention provides the device and method of a kind of frame aggregation and frame parsing using pass The receiving end address field of connection mark AID structure, realizes the multiple MSDU for being sent to different target workbench aggregating into an A- MSDU is sent to different object tables after being packaged into MPDU.

First aspect of the embodiment of the present invention provides a kind of device of frame aggregation, is applied to transmitting terminal workbench, described device Include:

Aggregation module, for multiple media access control layer service data units of different target workbench will to be sent to MSDU aggregates into the media access control layer service data unit A-MSDU of a polymerization；

First generation module, the predicable generation for the association identification AID according to the different target workbench are adopted With the receiving end address field of AID structure, the AID structure includes the AID of the different target workbench；

Second generation module is used for using the A-MSDU as load, raw using the AID structure as receiving end address field At a medium access control layer protocol data cell MPDU；

Sending module, for sending the MPDU, in order to the received MPDU's of receiving end workbench parsing Receiving end address field, when the AID structure of the receiving end address field includes the AID of the receiving end workbench, the reception It holds workbench to parse the A-MSDU, searches the MSDU for issuing the receiving end workbench in the A-MSDU.

In the possible implementation of the first of first aspect of the embodiment of the present invention, first generation module includes:

Setting unit, for according to entrained by the predicable of the AID of different target workbench setting AID structure Indicating bit and marker, the indicating bit are used to indicate the significant position of AID structure, and the marker is in the AID structure Significant position, to contain the AID of the different target workbench；

First generation unit, for generating the receiving end address field for carrying the AID structure of the indicating bit and marker.

In conjunction with the first possible implementation of first aspect of the embodiment of the present invention, in second of possible implementation In, the setting unit are as follows:

First setting subelement, for AID structure to be arranged when the AID of the different target workbench belongs to same one page Entrained page indicating bit and page marker.

In conjunction with the first possible implementation of first aspect of the embodiment of the present invention, in the third possible implementation In, the setting unit are as follows:

Second setting subelement, for AID structure to be arranged when the AID of the different target workbench belongs to same Entrained block indicating bit and block identification position.

In conjunction with the first possible implementation of first aspect of the embodiment of the present invention, in the 4th kind of possible implementation In, the setting unit are as follows:

Subelement is arranged in third, for when the AID of the different target workbench belongs to same sub-block, setting AID to be tied Sub-block indicating bit and sub-block marker entrained by structure.

In 5th kind of possible implementation of first aspect of the embodiment of the present invention, first generation module are as follows:

Second generation unit, for belonging to the multicast identified by the same multicast AID when the different target workbench When group, the receiving end address field using the multicast AID is generated.

In conjunction with the 5th kind of possible implementation of first aspect of the embodiment of the present invention to first aspect, in the 6th kind of possibility Implementation in, the aggregation module includes:

Encapsulation unit, for adding purpose address, source address, the length of the MSDU and sequence control before each MSDU One or several in position processed is packaged into the subframe of an A-MSDU；

Polymerized unit, for the subframe of multiple A-MSDU to be aggregated into an A-MSDU；

Wherein, the object tables of at least two MSDU are different.

The second aspect of the embodiment of the present invention provides a kind of device of frame parsing, is applied to receiving end workbench, the dress It sets and includes:

Receiving module, for receiving the MPDU of transmitting terminal workbench transmission, the MPDU is that transmitting terminal workbench will be sent The media access of a polymerization is aggregated into multiple media access control layer service data unit MSDU of different target workbench Control layer service data unit A-MSDU；It is generated according to the predicable of the different target workbench and uses association identification AID The receiving end address field of structure generates the AID structure as receiving end address field using the A-MSDU as load, The AID structure includes the AID of the different target workbench；

Parsing module, for parsing the receiving end address field of the MPDU；

Judgment module, for judge the receiving end address field AID structure whether include receiving end workbench AID；

Searching module, for parsing when the AID structure of the receiving end address field includes the AID of receiving end workbench The A-MSDU searches the MSDU that the receiving end workbench is sent in the A-MSDU.

In the possible implementation of the first of the second aspect of the embodiment of the present invention, the judgment module includes:

Acquiring unit, for obtaining indicating bit entrained by the AID structure of the receiving end address field；

First judging unit judges that the AID is tied according to the marker for obtaining marker according to the indicating bit Structure whether include the receiving end workbench AID.

In conjunction with the first possible implementation of second aspect of the embodiment of the present invention, in second of possible implementation In, first judging unit are as follows:

First judgment sub-unit, when for being page indicating bit entrained by the AID structure of the receiving end address field, root Page marker is obtained according to the page indicating bit, judges whether the AID of the receiving end workbench belongs to the page marker and marked The page of knowledge.

In conjunction with the first possible implementation of second aspect of the embodiment of the present invention, in the third possible implementation In, first judging unit are as follows:

Second judgment sub-unit, when for being block indicating bit entrained by the AID structure of the receiving end address field, root Block identification position is obtained according to described piece of indicating bit, judges whether the AID of the receiving end workbench belongs to the block identification position and marked The block of knowledge.

In conjunction with the first possible implementation of second aspect of the embodiment of the present invention, in the 4th kind of possible implementation In, first judging unit are as follows:

Third judgment sub-unit, when for being sub-block indicating bit entrained by the AID structure of the receiving end address field, Sub-block marker is obtained according to the sub-block indicating bit, judges whether the AID of the receiving end workbench belongs to the sub-block mark Know the sub-block that position is identified.

In the 5th kind of possible implementation of second aspect of the embodiment of the present invention, the judgment module includes:

Second judgment unit, for judging whether the multicast AID of the receiving end address field is the receiving end workbench The multicast AID of affiliated multicast group.

The third aspect of the embodiment of the present invention provides a kind of transmitting terminal workbench, and the transmitting terminal workbench includes:

First memory and first processor, for storing instruction, the first processor is used for the first memory Instruction is transferred, described instruction includes:

The multiple media access control layer service data unit MSDU for being sent to different target workbench are aggregated into one The media access control layer service data unit A-MSDU of polymerization；

The receiving end for using association identification AID structure is generated according to the predicable of the AID of the different target workbench Address field, the AID structure include the AID of the different target workbench；

Using the A-MSDU as load, a media access control is generated using the AID structure as receiving end address field Preparative layer protocol Data Unit MPDU；

The MPDU is sent, in order to which receiving end workbench parses the receiving end address field of the received MPDU, When the AID structure of the receiving end address field includes the AID of the receiving end workbench, the receiving end workbench parses institute A-MSDU is stated, the MSDU for issuing the receiving end workbench in the A-MSDU is searched.

Fourth aspect of the embodiment of the present invention provides a kind of receiving end workbench, and the receiving end workbench includes:

Second memory and second processor, for storing instruction, the second processor is used for the second memory Instruction is transferred, described instruction includes:

The MPDU that transmitting terminal workbench is sent is received, the MPDU is that transmitting terminal workbench will be sent to different target work Multiple media access control layer service data unit MSDU of platform aggregate into the media access control layer service data of a polymerization Unit A-MSDU；With generating the receiving end using association identification AID structure according to the predicable of the different target workbench Location domain generates the AID structure as receiving end address field, the AID structure includes using the A-MSDU as load The AID of the different target workbench；

Parse the receiving end address field of the MPDU；

Judge the receiving end address field AID structure whether include receiving end workbench AID；

When the AID structure of the receiving end address field includes the AID of receiving end workbench, the A-MSDU is parsed, is looked into Look for the MSDU that the receiving end workbench is sent in the A-MSDU.

The aspect of the embodiment of the present invention the 5th provides a kind of communication system, which is characterized in that the communication system includes:

Transmitting terminal workbench described in the third aspect of the embodiment of the present invention and at least two fourth aspects of the embodiment of the present invention The receiving end workbench.

The 6th aspect of the embodiment of the present invention provides a kind of method of frame aggregation, is applied to transmitting terminal workbench, the method Include:

In terms of the embodiment of the present invention the 6th in the first possible implementation, according to the different target workbench The predicable of AID is generated includes: using the receiving end address field of AID structure

According to indicating bit and mark entrained by the predicable of the AID of different target workbench setting AID structure Position, the indicating bit are used to indicate the significant position of AID structure, and the marker is position significant in the AID structure, use In the AID comprising the different target workbench；

Generate the receiving end address field for carrying the AID structure of the indicating bit and marker.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 6th, in second of possible implementation In, indicating bit and the marker according to entrained by the predicable of the AID of different target workbench setting AID structure Include:

When the AID of the different target workbench belongs to same one page, page indicating bit and page entrained by AID structure are set Marker.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 6th, in the third possible implementation In, indicating bit and the marker according to entrained by the predicable of the AID of different target workbench setting AID structure Include:

When the AID of the different target workbench belongs to same, block indicating bit and block entrained by AID structure are set Marker.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 6th, in the 4th kind of possible implementation In, indicating bit and the marker according to entrained by the predicable of the AID of different target workbench setting AID structure Include:

When the AID of the different target workbench belongs to same sub-block, sub-block indicating bit entrained by AID structure is set With sub-block marker.

In the 6th the 5th kind of possible implementation of aspect of the embodiment of the present invention, according to the different target workbench The predicable of AID is generated includes: using the receiving end address field of AID structure

When the different target workbench belongs to the multicast group identified by the same multicast AID, generate described in using The receiving end address field of multicast AID.

In conjunction with the 5th kind of possible implementation of the 6th aspect of the embodiment of the present invention to the 6th aspect, in the 6th kind of possibility Implementation in, it is described to gather the multiple media access control layer service data unit MSDU for being sent to different target workbench Synthesizing the media access control layer service data unit A-MSDU that one polymerize includes:

One before each MSDU in adding purpose address, source address, the length of the MSDU and sequence control bit Or several be packaged into an A-MSDU subframe,

Multiple A-MSDU subframes are aggregated into an A-MSDU；

Wherein, the object tables of at least two MSDU are different.

The 7th aspect of the embodiment of the present invention provides a kind of method of frame parsing, is applied to receiving end workbench, the method Include:

Parse the receiving end address field of the MPDU；

In terms of the embodiment of the present invention the 7th in the first possible implementation, the AID of the receiving end address field is judged Whether structure includes that the AID of receiving end workbench includes:

Obtain indicating bit entrained by the AID structure of the receiving end address field；

Marker is obtained according to the indicating bit, judges whether the AID structure includes described connect according to the marker The AID of receiving end workbench.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 7th, in second of possible implementation In, it is described that marker is obtained according to the indicating bit, judge whether the AID structure includes the reception according to the marker End workbench AID include:

When being page indicating bit entrained by the AID structure of the receiving end address field, obtained according to the page indicating bit Page marker, judges whether the AID of the receiving end workbench belongs to the page that the page marker is identified.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 7th, in the third possible implementation In, it is described that marker is obtained according to the indicating bit, judge whether the AID structure includes the reception according to the marker End workbench AID include:

When being block indicating bit entrained by the AID structure of the receiving end address field, obtained according to described piece of indicating bit Block identification position, judges whether the AID of the receiving end workbench belongs to the block that the block identification position is identified.

In conjunction with the first possible implementation of the aspect of the embodiment of the present invention the 7th, in the 4th kind of possible implementation In, it is described that marker is obtained according to the indicating bit, judge whether the AID structure includes the reception according to the marker End workbench AID include:

When being sub-block indicating bit entrained by the AID structure of the receiving end address field, according to the sub-block indicating bit Sub-block marker is obtained, judges whether the AID of the receiving end workbench belongs to the sub-block that the sub-block marker is identified.

In the 7th the 5th kind of possible implementation of aspect of the embodiment of the present invention, the AID of the receiving end address field is judged Whether structure includes that the AID of receiving end workbench includes:

Judge the receiving end address field multicast AID whether be multicast group belonging to the receiving end workbench multicast AID。

As shown in the above, the method have the advantages that:

The embodiment of the invention provides the device and methods of a kind of frame aggregation and frame parsing, will be sent to different target work Multiple media access control layer service data unit MSDU of platform aggregate into the media access control layer service data of a polymerization Unit A-MSDU generates the reception for using AID structure according to the predicable of the association identification AID of the different target workbench Address field is held, using the A-MSDU as load, a MPDU is generated using the AID structure as receiving end address field, sends The MPDU after receiving end workbench receives the MPDU, parses the receiving end address field of the MPDU, when the receiving end When the AID structure of address field includes the AID of the receiving end workbench, the receiving end workbench parses the A-MSDU, looks into The A-MSDU is looked for issue the MSDU of the receiving end workbench, the AID structure packet as described in the receiving end address field of MPDU AID containing the different target workbench, when the AID structure of the receiving end address field includes the receiving end workbench When AID, the receiving end workbench can continue to parse A-MSDU, search and issue the receiving end workbench in the A-MSDU MSDU, realize and the multiple MSDU for being sent to different target workbench aggregated into an A-MSDU, sent after being packaged into MPDU To different object tables, the techniques of frame aggregation use scope of A-MSDU is expanded.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of one structural schematic diagram of Installation practice of frame aggregation of the present invention；

Fig. 2 is the frame structure schematic diagram of MPDU of the present invention；

Fig. 3 is a kind of two structural schematic diagram of frame resolver embodiment of the present invention；

Fig. 4 is a kind of three structural schematic diagram of transmitting terminal workbench embodiment of the present invention；

Fig. 5 is a kind of transmitting terminal workbench example IV structural schematic diagram of the present invention；

Fig. 6 is a kind of five structural schematic diagram of communications system embodiment of the present invention；

Fig. 7 is a kind of six flow chart of frame aggregation method embodiment of the present invention；

Fig. 8 is a kind of seven flow chart of frame analytic method embodiment of the present invention.

Specific embodiment

The multiple MSDU for being sent to different target workbench are aggregated into an A-MSDU implementation, this hair in order to provide Bright embodiment provides the device and method of a kind of frame aggregation and frame parsing, below in conjunction with Figure of description to of the invention preferred Embodiment is illustrated, it should be understood that preferred embodiments described herein are only used to illustrate and explain the present invention, is not used to Limit the present invention.And in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.

Embodiment one

Fig. 1 is a kind of one structural schematic diagram of Installation practice of frame aggregation of the present invention, is applied to transmitting terminal workbench, described Device includes:

Aggregation module 101, for multiple media access control layer service data lists of different target workbench will to be sent to First MSDU aggregates into the media access control layer service data unit A-MSDU of a polymerization.

Aggregation module 101 is used to multiple MSDU aggregating into an A-MSDU, wherein in multiple MSDU at least there are two The object tables that MSDU to be sent are different.The aggregation module 101 includes:

Encapsulation unit, for adding purpose address, source address, the length of the MSDU and sequence control before each MSDU One or several in position processed is packaged into the subframe of an A-MSDU.

The sequence control bit distinguishes label to the MSDU for being sent to different object tables.

Wherein, the object tables of at least two MSDU are different.

As shown in Fig. 2, A-MSDU subframe of the present invention and MPDU structure schematic diagram, each A-MADU subframe is successively wrapped It includes: the destination address of MSDU, the source address of MSDU, the length of MSDU and sequence control bit (Sequence Control), MSDU, And supplement position padding.Supplement position padding is mainly used for packaged obtain an A-MADU subframe being supplemented to 4 words The integral multiple of section, the last one A-MADU subframe in A-MSDU do not supplement position.

The MSDU that the destination address of MSDU in each A-MSDU subframe is used to indicate in the A-MSDU subframe to be sent out The address for the object tables sent.

Sequence Control is for being numbered the MSDU in A-MADU subframe, and Sequence Control is right When MSDU is numbered, the MSDU for being sent to different object tables is numbered respectively.For example: gather in A-MSDU Conjunction has 5 MSDU, first MSDU to be sent to object tables A, and second MSDU is sent to object tables B, third MSDU is sent to object tables A, and the 4th MSDU is sent to object tables A, and the 5th MSDU is sent to object tables B.Assuming that obtained MPDU is first MPDU after this A-MSDU encapsulation.The then Sequence in first A-MSDU subframe Control is 1 to first MSDU number；Then the Sequence Control in second A-MSDU subframe gives second MSDU Number is 1；Then the Sequence Control in third A-MSDU subframe is 2 to third MSDU number；Then the 4th A- It is 3 that Sequence Control in MSDU subframe is numbered to the 4th MSDU；Then in the 5th A-MSDU subframe Sequence Control is 2 to the 5th MSDU number.There is examples detailed above to can be seen that Sequence Control to transmission MSDU to different object tables is numbered respectively.

Multiple A-MSDU subframes polymerize to obtain an A-MSDU, and multiple MSDU in A-MSDU are sent to different target works Make platform.

First generation module 102, for the association identification (Association according to the different target workbench Identifier, AID) predicable generate use association identification AID structure receiving end address field, the AID structure packet AID containing the different target workbench.

As shown in Fig. 2, a MPDU includes MPDU frame head, A-MSDU and cyclic check position (Frame Check Sequence, FCS).

MPDU frame head format is as follows in the prior art:

The format of general MPDU frame head are as follows:

Wherein, 1 fixed storage of address has the MAC Address of an object tables, and address 2, address 3 and address 4 are stored with The source address of MPDU, destination address and transmitting terminal workbench address, device corresponding relationship are not fixed.

Short MPDU frame head format are as follows:

Wherein, 1 fixed storage of address has the MAC Address of an object tables.

Therefore, in the prior art, MPDU is only stored with the MAC Address of an object tables in the address of frame head 1, Therefore, after all receiving end workbench communicated with transmitting terminal workbench receive the MPDU, the frame head of the MPDU is parsed, Receiving end identical with MAC Address entrained by address 1 in the frame head of MPDU workbench is only used as mesh as object tables Mark workbench receiving end workbench could parse the A-MSDU in MPDU, therefore, in A-MSDU can only polymerize be sent to it is identical The MSDU of object tables.

In the present invention, generation module 102 is generated according to the predicable of the AID of the different target workbench using association The receiving end address field of AID structure is identified, the AID structure includes the AID of the different target workbench.

Wherein, the structure of AID is as follows:

In the present invention, MAC Address in the prior art is replaced to generate the receiving end address field in frame head using AID structure, The AID structure includes the AID of different target workbench, that is to say, that can be represented using the receiving end address field of AID structure The address of multiple and different object tables, when in the AID structure of receiving end address field including the AID of receiving end workbench, The receiving end workbench can be used as the A-MSDU in object tables parsing MPDU.Therefore, the frame of the MPDU in the present invention Receiving end workbench all representated by the AID structure of receiving end address field can all parse the A-MSDU in MPDU in head, can To search in A-MSDU with the MSDU of receiving end workbench address as a purpose.

It is existing due to using AID structure to replace MAC Address in the prior art in the receiving end address field of the frame head of MPDU Therefore the MAC Address that an object tables can only be filled in the address field of receiving end in technology can only have one and receiving end The corresponding receiving end workbench of the MAC Address that address field is filled can parse the A-MSDU in MPDU；And it can be in the present invention The AID with multiple object tables of predicable is represented using AID structure, therefore, in the AID structure of receiving end address field Receiving end workbench corresponding to the AID for all object tables for being included can parse the A-MSDU in MPDU, therefore, A-MSDU in MPDU can polymerize the MSDU of multiple and different object tables.

At least there are two types of possible structures for first generation module 102:

The first possible structure, the generation module 102 include:

Setting unit, for according to entrained by the predicable of the AID of different target workbench setting AID structure Indicating bit and marker；

The indicating bit is used to indicate the significant position of AID structure, and the marker is significant in the AID structure Position, to contain the AID of the different target workbench.

Indicating bit includes: a page indicating bit, block indicating bit and block indicating bit.When indicating bit is page indicating bit, show Significant position is page ID in AID structure；When indicating bit is block indicating bit, show that position significant in AID structure is Page ID and Block Index；When indicating bit is block indicating bit, show that position significant in AID structure is page ID, Block Index and Subblock Index.Wherein, page ID is page marker, indicates one page；Page ID with And Block Index are block identification position, indicate a block in one page；Page ID, Block Index and Subblock Index are block marker, indicate a sub-block of a block in one page.

Since AID is hierarchical structure, occupy 16 bit (structure of such as above-mentioned AID) altogether, whole receiving end workbench AID is distributed in 4 page, and each page includes 32 block, and each block includes 8 subblock, each Subblock includes 8 workbench.

At least there are three types of possible structures for the setting unit:

(1) first setting subelement, for when the AID of the different target workbench belongs to same one page, setting AID to be tied Page indicating bit and page marker entrained by structure.

According to above-mentioned AID structure, when the object tables transmitted by the MSDU polymerizeing in A-MSDU belong to same one page, Page indicating bit and page marker are carried in AID structure.Page indicating bit selects two expressions in b13, b14 and b15 Page ID is significant, and following embodiments are illustrated for selecting b14 and b13, and b15 is not used, and can arbitrarily fill； The occurrence that page marker is page ID.Since the AID of all receiving end workbench is distributed in 4 page, so page ID occupies 2 bit, and page ID is respectively 00,01,10 and 11.

When the AID of the object tables of all MSDU belongs to same one page, it is assumed that page ID=01, page indicating bit B14b13=00 indicates that Block Index, Subblock Index and Station Index are meaningless, and X is indicated can be with Meaning filling 0 or 1, then AID structure is as follows:

For above-mentioned AID structure, receiving end workbench belonging to all AID for being distributed in page ID and being 01 all may be used To parse the A-MSDU in MPDU, but not necessarily comprising all receiving end workbench that can parse the A-MPDU in A-MSDU MSDU.That is, receiving end workbench AID is distributed in page ID=01, it can only guarantee that the receiving end workbench can be with The A-MSDU in MPDU is parsed, but does not ensure that the MSDU for carrying in A-MSDU and being sent to the receiving end workbench, i.e., The receiving end workbench is not necessarily object tables, is only sent to receiving end workbench when carrying in A-MSDU When MSDU, the receiving end workbench is only object tables.

What needs to be explained here is that b14b13=00 indicates Block Index, Subblock Index and Station Index is meaningless, can sets itself according to the actual situation, be not limited only to AID structure represented by examples detailed above, can also be with B15b14 is selected, here without specifically limiting.

(2) second setting subelements, for when the AID of the different target workbench belongs to same, setting AID to be tied Block indicating bit and block identification position entrained by structure.

According to above-mentioned AID structure, when the object tables transmitted by the MSDU polymerizeing in A-MSDU belong to same, Block indicating bit and block identification position are carried in AID structure.Block indicating bit selects b14b13 to indicate page ID and Block Index is significant；Block identification position is the occurrence of block composed by page ID and Block Index, and expression is distributed in nth page N-th piece, include 32 blocks in each page, Block Index occupies 5 bit.

When the AID of the object tables of all MSDU belongs to same, it is assumed that page ID=01, Block Index= 10101, block indicating bit b14b13=01 indicate that Subblock Index and Station Index are meaningless, and X is indicated can be with Arbitrarily filling 0 or 1, then AID structure is as follows:

It is all to be distributed in page ID=01, and the AID of Block Index=10101 for above-mentioned AID structure Affiliated receiving end workbench can parse the A-MSDU in MPDU, but not necessarily comprising described in all energy parsings in A-MSDU The MSDU of the receiving end workbench of A-MPDU.That is, receiving end workbench AID is distributed in page ID=01, Block In Index=10101, it can only guarantee that the receiving end workbench can parse the A-MSDU in MPDU, but do not ensure that A- The MSDU of the receiving end workbench is carried in MSDU, i.e., the described receiving end workbench is not necessarily object tables, only When carrying the MSDU for being sent to receiving end workbench in A-MSDU, the receiving end workbench is only object tables.Point The AID of receiving end workbench of the cloth in page ID=01, Block Index=10101 has 64, belonging to this 64 AID Receiving end workbench can parse the A-MSDU in MPDU, but the receiving end to be sent the MSDU polymerizeing in only A-MSDU Workbench is only object tables.

What needs to be explained here is that b14b13=01 indicates that Subblock Index and Station Index are not intended to Justice, Block Index=10101 indicate some block in page ID=01, can sets itself according to the actual situation, no It is only limitted to AID structure represented by examples detailed above, here without specifically limiting.

(3) subelement is arranged in third, for AID to be arranged when the AID of the different target workbench belongs to same sub-block Sub-block indicating bit and sub-block marker entrained by structure.

According to above-mentioned AID structure, when the object tables transmitted by the MSDU polymerizeing in A-MSDU belong to same, Sub-block indicating bit and sub-block marker are carried in AID structure.Sub-block indicating bit b14b13 indicates page ID, Block Index And Subblock Index is significant；Sub-block marker is page ID, Block Index and Subblock Index institute The occurrence of the sub-block of composition indicates n-th piece of the n-th sub-block for being distributed in nth page, includes 8 sub-blocks in each piece, Subblock Index occupies 3 bit.

When the AID of the object tables of all MSDU belongs to same sub-block, it is assumed that page ID=01, Block Index =10101, Subblock Index=100, sub-block indicating bit b14b13=010 indicate that Station Index is meaningless, X table 0 or 1 can arbitrarily be filled by showing, then AID structure is as follows:

It is all to be distributed in page ID=01, and Block Index=10101 for above-mentioned AID structure, Receiving end workbench belonging to the AID of Subblock Index=100 can parse the A-MSDU in MPDU, but in A-MSDU MSDU not necessarily comprising all receiving end workbench that can parse the A-MPDU.That is, receiving end workbench AID points It is distributed in page ID=01, in Block Index=10101, Subblock Index=100, can only guarantee the receiving end work It can parse the A-MSDU in MPDU as platform, but do not ensure that the MSDU for carrying the receiving end workbench in A-MSDU, The i.e. described receiving end workbench is not necessarily object tables, is only sent to receiving end workbench when carrying in A-MSDU When MSDU, the receiving end workbench is only object tables.It is distributed in page ID=01, Block Index=10101, The AID of receiving end workbench in Subblock Index=100 has 8, and receiving end workbench belonging to this 8 AID all may be used To parse the A-MSDU in MPDU, but the MSDU polymerizeing in the only A-MSDU receiving end workbench to be sent is only target work Make platform.

What needs to be explained here is that b14b13=10 indicates that Station Index is meaningless, Subblock Index= 100 indicate page ID=01, some block in Block Index=10101, can sets itself according to the actual situation, no It is only limitted to AID structure represented by examples detailed above, here without specifically limiting.

Certainly, AID structure provided by the present invention can also only indicate the AID of a receiving end workbench, at this time AID Structure is as follows:

It is all to be distributed in page ID=01, and Block Index=10101 for above-mentioned AID structure, Receiving end workbench belonging to the AID of Subblock Index=100, Station Index-011 only one, that is, It says, only one receiving end workbench can parse the A-MSDU in MPDU, so far receive at this point, A-MSDU can only polymerize transmission The MSDU of workbench is held, this receiving end workbench is unique object tables.This example similarly to the prior art, here only It is described as control.

Second of possible structure, the generation module 102 are as follows:

Multiple receiving end workbench can also be preset and belong to a multicast group, belong to the receiving end work an of multicast group Make platform and uses the same multicast Multicast AID, since multiple receiving end workbench use the same Multicast AID, When then receiving device receives MPDU, the Multicast AID in the address field of receiving end is parsed, if Multicast AID is The Multicast AID of multicast group belonging to the receiving end workbench, then the receiving end workbench can parse in MPDU A-MSDU.

The AID of object tables in A-MSDU subframe comprising the subframe, there are two types of implementations:

It may include the complete AID of object tables in the destination address of A-MSDU subframe, occupy 13 bit altogether, such as: 0110101100111；It can also be contained only in the meaningless part of AID structure of the receiving end address field of MPDU, such as: for When page ID=01, Block Index, Subblock Index and Station Index all meaningless, A-MSDU subframe Destination address can be 10101100111；For page ID=01, Block Index=10101, Subblock Index And Station Index it is all meaningless when, the destination address of A-MSDU subframe can be 100111；For page ID=01, Block Index=10101, Subblock Index=100, with only have Station Index it is meaningless when, A-MSDU subframe Destination address can be 111.

Second module 103 is used for using the A-MSDU as load, raw using the AID structure as receiving end address field At a medium access control layer protocol data cell MPDU.

Using institute A-MSDU as load, addition uses the frame head of the receiving end address field, and cyclic check position envelope is added Dress obtains the MPDU.The frame head of the MPDU can be one of following combination: " domain Frame Control and receiving end Address field ", " domain Frame Control, receiving end address field and transmitting terminal address field ", " domain Frame Control, receiving end Address field, transmitting terminal address field and service quality control the domain (Quality of Service Control, QoS Control) " And " domain Frame Control, receiving end address field and the domain QoS Control ".Wherein, QoS Control includes workbench The information such as access priority.

The MPDU frame obtained after encapsulation is as shown in Fig. 2, add the receiving end address using the AID structure before A-MSDU The frame head in domain, addition FCS post package obtains MPDU behind A-MSDU.

Sending module 104, for sending the MPDU, in order to the received MPDU of receiving end workbench parsing Receiving end address field, when the AID structure of the receiving end address field include the receiving end workbench AID when, it is described to connect Receiving end workbench parses the A-MSDU, searches the MSDU that the receiving end workbench is issued in the A-MSDU.

After the MSDU for being sent to different target workbench is aggregated into an A-MSDU by transmitting terminal workbench, A-MSDU is sealed MPDU is obtained after dress, and MPDU is sent to all receiving end workbench communicated with.Receiving end workbench receives described MPDU parses the receiving end address field in the frame head of the MPDU, when the AID structure of the receiving end address field includes described connects When the AID of receiving end workbench, the receiving end workbench parses the A-MSDU, and receiving end workbench is searched to be sent in A-MSDU To the MSDU of the receiving end workbench, if the MSDU can be found, the object tables of the MSDU are described connect Receiving end workbench；If not finding the MSDU, the receiving end workbench is not object tables.It is possible thereby to see Out, the receiving end workbench not necessarily object tables of A-MSDU can be parsed.

As shown in the above, the embodiment of the present invention has the advantages that:

The AID structure as described in the receiving end address field of MPDU includes the AID of the different target workbench, when described When the AID structure of receiving end address field includes the AID of the receiving end workbench, the receiving end workbench can continue to parse A-MSDU, searches the MSDU that the receiving end workbench is issued in the A-MSDU, and realization will be sent to different target workbench Multiple MSDU aggregate into an A-MSDU, be sent to different object tables after being packaged into MPDU, expand A-MSDU's Techniques of frame aggregation use scope.

Embodiment two

Fig. 3 is a kind of two structural schematic diagram of frame resolver embodiment of the present invention, is applied to receiving end workbench, the dress It sets and includes:

Receiving module 301, for receiving the MPDU of transmitting terminal workbench transmission.

The MPDU is multiple media access control layer services that transmitting terminal workbench will be sent to different target workbench Data cell MSDU aggregates into the media access control layer service data unit A-MSDU of a polymerization；According to the different target The predicable of the AID of workbench generates the receiving end address field for using association identification AID structure, using the A-MSDU as negative It carries, AID structure is generated as receiving end address field, the AID structure includes the AID of the different target workbench. The process that MPDU is generated is similar with embodiment one, and the description of reference implementation example one, which is not described herein again.

Parsing module 302, for parsing the receiving end address field of the MPDU.

All receiving end workbench communicated with transmitting terminal workbench can receive MPDU, and parse the MPDU Receiving end address field.

Judgment module 303, for judging whether the AID structure of the receiving end address field includes receiving end workbench AID。

At least there are two types of possible structures for the judgment module 303:

The first possible structure, the judgment module 303 include:

First judging unit includes:

(1) first judgment sub-unit, for being a page indicating bit entrained by the AID structure when the receiving end address field When, page marker is obtained according to the page indicating bit, judges whether the AID of the receiving end workbench belongs to the page marker The page identified.

Receiving end address field in MPDU uses AID structure, may include the AID of multiple receiving end workbench.When AID is tied In structure when entrained page indicating bit, page indicating bit indicates only have Page ID significant, is obtained according to the page indicating bit significant Page marker Page ID occurrence.

Such as: page indicating bit b14b13=00 indicates that page ID is significant in AID structure, Block Index, Subblock Index and Station Index is meaningless, and page marker is page ID=01, indicates that AID structure includes all belongs to The AID of the receiving end workbench of page ID=01.X expression can arbitrarily fill 0 or 1, then AID structure is as follows:

At this point, A- in MPDU can be parsed by being distributed in receiving end workbench belonging to the AID of page ID=01 MSDU.Since each page includes 32 Block, each Block includes 8 Subblock, and each Subblock includes 8 works Make platform.The receiving end workbench one being distributed in page ID=01 shares 2048, this 2048 receiving end workbench are ok The A-MSDU in MPDU is parsed, the MSDU for being sent to the receiving end workbench is searched from A-MSDU.There is no poly- in A-MSDU The MSDU of each receiving end workbench is closed, although 2084 receiving end workbench can all parse the A- in analysis MPDU MSDU, but might not can find with the MSDU of the address as a purpose its AID.

(2) second judgment sub-units, for being block indicating bit entrained by the AID structure when the receiving end address field When, block identification position is obtained according to described piece of indicating bit, judges whether the AID of the receiving end workbench belongs to the block identification position The block identified.

Receiving end address field in MPDU uses AID structure, may include the AID of multiple receiving end workbench.When AID is tied Entrained block indicating bit in structure, block indicating bit indicates that Page ID and Block Index are significant, according to described piece of indicating bit Obtain the occurrence of significant block identification position Page ID and Block Index.

Such as: in AID structure block indicating bit b14b13=01 indicate Subblock Index and Station Index all without Meaning, block identification position page ID=01, Block Index=10101 indicate that AID structure belongs to page ID=comprising all The AID of the receiving end workbench of Block Index=10101 block in page 01.X expression can arbitrarily fill 0 or 1, then AID is tied Structure is as follows:

It is distributed in page ID=01,64 receiving end workbench in Block Index=10101 can parse A-MSDU in MPDU is sent to the receiving end workbench MSDU from A-MSDU lookup.It does not polymerize in A-MSDU each The MSDU of a receiving end workbench, although 64 receiving end workbench can all parse the A-MSDU in analysis MPDU, not It can centainly find with the MSDU of the address as a purpose its AID.

(3) third judgment sub-unit, for being sub-block indicating bit entrained by the AID structure when the receiving end address field When, sub-block marker is obtained according to the sub-block indicating bit, judges whether the AID of the receiving end workbench belongs to the sub-block The sub-block that marker is identified.

Receiving end address field in MPDU uses AID structure, may include the AID of multiple receiving end workbench.When AID is tied Entrained sub-block indicating bit in structure, sub-block indicating bit indicate that Page ID, Block Index and Subblock Index are intentional Justice obtains significant sub-block marker Page ID, Block Index and Subblock according to the sub-block indicating bit The occurrence of Index.

If sub-block indicating bit b14b13=10 indicates that Station Index is meaningless in AID structure, sub-block marker page ID=01, Block Index=10101, Subblock Index=100 indicate that AID structure belongs to page ID comprising all In page=01 in Block Index=10101 block the receiving end workbench of Subblock Index=100 sub-block AID.X table 0 or 1 can arbitrarily be filled by showing, then AID structure is as follows:

It is distributed in page ID=01,8 receiving ends in Block Index=10101, Subblock Index=100 Workbench can parse the A-MSDU in MPDU, be sent to the receiving end workbench MSDU from A-MSDU lookup.A-MSDU In do not polymerize the MSDU of each receiving end workbench, although 8 receiving end workbench can be parsed all in analysis MPDU A-MSDU, but might not can find with the MSDU of the address as a purpose its AID.

Second of possible structure, the judgment module 303 wrap are as follows:

When receiving end address field is multicast AID in the frame head of MPDU, whether receiving end workbench judges the multicast AID For the multicast AID of multicast group belonging to the receiving end workbench.The multiple receiving end workbench for belonging to the same multicast group are total It is same to use the same multicast AID.

Searching module 304, for solving when the AID structure of the receiving end address field includes the AID of receiving end workbench The A-MSDU is analysed, the MSDU for being sent to the receiving end workbench in the A-MSDU is searched.

A-MSDU in the MPDU can be parsed using the receiving end workbench of this multicast AID, according to the A- Destination address in A-MSDU subframe in MSDU searches the A-MSDU subframe for being sent to the receiving end workbench, is sent MSDU into the A-MSDU subframe of the receiving end workbench.What needs to be explained here is that receiving end workbench can parse A-MSDU in the MPDU, but not necessarily include the MSDU for being sent to the receiving end workbench.

As shown in the above, the method have the advantages that:

It may include the AID of multiple receiving end workbench, AID structure in the receiving end address field of MPDU using AID structure Included in receiving end workbench belonging to AID can parse the A-MSDU in MPDU, therefore, A-MSDU can polymerize hair Send the use scope that A-MSUD is expanded to the MSDU of different target workbench.

Embodiment three

Fig. 4 is a kind of three structural schematic diagram of transmitting terminal workbench embodiment of the present invention, and the transmitting terminal workbench includes the One memory 401 and first processor 402, the first memory 401 for storing instruction, use by the first processor 402 It is instructed in transferring, described instruction includes:

The MPDU is sent, in order to which receiving end workbench parses the receiving end address field of the received MPDU, When the AID structure of the receiving end address field includes the AID of the receiving end workbench, the receiving end workbench parses institute A-MSDU is stated, the MSDU for issuing the receiving end workbench in the A-MSDU is searched；

Optionally, the predicable of the AID according to the different target workbench generates the reception for using AID structure End address field, which instructs, includes:

Generate the receiving end address field for carrying the AID structure of the indicating bit and marker；

Optionally, the finger according to entrained by the predicable of the AID of different target workbench setting AID structure Show position and mark bit instruction includes:

When the AID of the different target workbench belongs to same one page, page indicating bit and page entrained by AID structure are set Marker；

When the AID of the different target workbench belongs to same, block indicating bit and block entrained by AID structure are set Marker；

When the AID of the different target workbench belongs to same sub-block, sub-block indicating bit entrained by AID structure is set With sub-block marker；

Optionally, the receiving end using AID structure is generated according to the predicable of the AID of the different target workbench Location domain instructs

When the different target workbench belongs to the multicast group identified by the same multicast AID, generate described in using The receiving end address field of multicast AID；

Optionally, multiple media access control layer service data unit MSDU that different target workbench will be sent to The media access control layer service data unit A-MSDU for aggregating into a polymerization, which is instructed, includes:

One before each MSDU in adding purpose address, source address, the length of the MSDU and sequence control bit Or several subframes for being packaged into an A-MSDU, the sequence control bit distinguish the MSDU for being sent to different object tables Label；

The subframe of multiple A-MSDU is aggregated into an A-MSDU；

Wherein, the object tables of at least two MSDU are different.

Example IV

Fig. 5 is a kind of transmitting terminal workbench example IV structural schematic diagram of the present invention, and the transmitting terminal workbench includes the Two memories 501 and second processor 502, the second memory 501 for storing instruction, use by the second processor 502 It is instructed in transferring, described instruction includes:

The MPDU that transmitting terminal workbench is sent is received, the MPDU is that transmitting terminal workbench will be sent to different target work Multiple media access control layer service data unit MSDU of platform aggregate into the media access control layer service data of a polymerization Unit A-MSDU；The receiving end for using association identification AID structure is generated according to the AID predicable of the different target workbench Address field generates AID structure as receiving end address field using the A-MSDU as load, and the AID structure includes institute State the AID of different target workbench；

Parse the receiving end address field of the MPDU；

When the AID structure of the receiving end address field includes the AID of receiving end workbench, the A-MSDU is parsed, is looked into Look for the MSDU that the receiving end workbench is sent in the A-MSDU；

Optionally, judge the receiving end address field AID structure whether include receiving end workbench AID instruction packet It includes:

Marker is obtained according to the indicating bit, judges whether the AID structure includes described connect according to the marker The AID of receiving end workbench；

Optionally, described that marker is obtained according to the indicating bit, whether the AID structure is judged according to the marker AID comprising the receiving end workbench is instructed

When being page indicating bit entrained by the AID structure of the receiving end address field, obtained according to the page indicating bit Page marker, judges whether the AID of the receiving end workbench belongs to the page that the page marker is identified；

When being block indicating bit entrained by the AID structure of the receiving end address field, obtained according to described piece of indicating bit Block identification position, judges whether the AID of the receiving end workbench belongs to the block that the block identification position is identified；

When being sub-block indicating bit entrained by the AID structure of the receiving end address field, according to the sub-block indicating bit Sub-block marker is obtained, judges whether the AID of the receiving end workbench belongs to the sub-block that the sub-block marker is identified；

Optionally, whether the AID structure for judging the receiving end address field includes that the AID of receiving end workbench includes:

Embodiment five

Fig. 6 is a kind of five structural schematic diagram of communications system embodiment of the present invention, the system comprises:

A kind of receiving end workbench described in a kind of transmitting terminal workbench 601 and example IV described in embodiment three 602。

Embodiment six

Fig. 7 is a kind of six flow chart of frame aggregation method embodiment of the present invention, and six the method for embodiment is and embodiment one Method corresponding to the frame aggregation device is applied to transmitting terminal workbench, which comprises

Step 701: the multiple media access control layer service data unit MSDU for being sent to different target workbench are gathered Synthesize the media access control layer service data unit A-MSDU of a polymerization.

It is described to aggregate into the multiple media access control layer service data unit MSDU for being sent to different target workbench One polymerization media access control layer service data unit A-MSDU include:

The subframe of multiple A-MSDU is aggregated into an A-MSDU；

Wherein, the object tables of at least two MSDU are different.

Step 702: being generated according to the predicable of the AID of the different target workbench and use association identification AID structure Receiving end address field, the AID structure include the different target workbench AID.

Being generated according to the predicable of the AID of the different target workbench is had using the receiving end address field of AID structure Two kinds of possible embodiments:

The first possible embodiment:

Optionally, the finger according to entrained by the predicable of the AID of different target workbench setting AID structure Show position and marker includes:

Second of possible embodiment:

The receiving end address field packet for using AID structure is generated according to the predicable of the AID of the different target workbench It includes:

Step 703: using the A-MSDU as load, AID structure being generated into a media as receiving end address field and is connect Enter control layer protocol Data Unit MPDU.

Step 704: the MPDU is sent, in order to the receiving end of the received MPDU of receiving end workbench parsing Address field, when the AID structure of the receiving end address field includes the AID of the receiving end workbench, the receiving end work Platform parses the A-MSDU, searches the MSDU that the receiving end workbench is issued in the A-MSDU.

Step 701 is similar with embodiment one to step 704, the description of specific embodiment in reference implementation example one, here It repeats no more.

Embodiment seven

Fig. 8 is a kind of seven flow chart of frame analytic method embodiment of the present invention, and seven the method for embodiment is and embodiment two Method corresponding to the frame resolver is applied to receiving end workbench, which comprises

Step 801: receiving the MPDU that transmitting terminal workbench is sent, the MPDU is that transmitting terminal workbench will be sent to difference Multiple media access control layer service data unit MSDU of object tables aggregate into the media access control layer of a polymerization Service data unit A-MSDU；It is generated according to the predicable of the different target workbench AID and uses association identification AID structure Receiving end address field AID structure is generated as receiving end address field using the A-MSDU as load, the AID is tied Structure includes the AID of the different target workbench.

Step 802: parsing the receiving end address field of the MPDU.

Step 803: judge the receiving end address field AID structure whether include receiving end workbench AID.

At least there are two types of possible embodiments for step 803:

The first possible embodiment:

Whether the AID structure for judging the receiving end address field includes that the AID of receiving end workbench includes:

Optionally, described that marker is obtained according to the indicating bit, whether the AID structure is judged according to the marker AID comprising the receiving end workbench includes:

Second of possible implementation:

Step 804: when the AID structure of the receiving end address field includes the AID of receiving end workbench, parsing the A- MSDU searches the MSDU that the receiving end workbench is sent in the A-MSDU.

When receiving end workbench receives the MPDU, first judge that the AID structure of the receiving end address field of the MPDU is The no AID comprising the receiving end workbench, when the AID structure of the receiving end address field includes the receiving end workbench When AID, receiving end address field parses the A-MSDU in the MPDU, and the domain lookup of receiving end address is with its address address as a purpose A-MSDU subframe, find the A-MSDU subframe, receiving end address field obtains the MADU in the A-MSDU subframe.

Step 801 is similar with embodiment two to step 804, and the description in reference implementation example two, which is not described herein again.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of device of frame aggregation, which is characterized in that be applied to transmitting terminal workbench, described device includes:

Aggregation module, for gathering the multiple media access control layer service data unit MSDU for being sent to different target workbench Synthesize the media access control layer service data unit A-MSDU of a polymerization；

Wherein, the aggregation module includes:

Encapsulation unit, for adding purpose address, source address, the length of the MSDU and sequence control bit before each MSDU In the one or several subframe for being packaged into an A-MSDU；

Wherein, the object tables of at least two MSDU are different；

First generation module, the predicable for the association identification AID according to the different target workbench are generated using AID The receiving end address field of structure, the AID structure include the AID of the different target workbench；

Second generation module, for generating one for the AID structure as receiving end address field using the A-MSDU as load A medium access control layer protocol data cell MPDU；

Sending module, for sending the MPDU, in order to the reception of the received MPDU of receiving end workbench parsing Address field is held, when the AID structure of the receiving end address field includes the AID of the receiving end workbench, the receiving end work Make platform and parse the A-MSDU, is searched according to the destination address of A-MSDU subframe and issue the receiving end work in the A-MSDU The MSDU of platform.

2. the apparatus according to claim 1, which is characterized in that first generation module includes:

Setting unit, for the instruction according to entrained by the predicable of the AID of different target workbench setting AID structure Position and marker, the indicating bit are used to indicate the significant position of AID structure, and the marker is intentional in the AID structure The position of justice, to contain the AID of the different target workbench；

3. the apparatus of claim 2, which is characterized in that the setting unit are as follows:

First setting subelement, for when the AID of the different target workbench belongs to same one page, setting AID structure to be taken The page indicating bit and page marker of band.

4. the apparatus of claim 2, which is characterized in that the setting unit are as follows:

Second setting subelement, for when the AID of the different target workbench belongs to same, setting AID structure to be taken The block indicating bit of band and block identification position.

5. the apparatus of claim 2, which is characterized in that the setting unit are as follows:

Subelement is arranged in third, for AID structure institute to be arranged when the AID of the different target workbench belongs to same sub-block The sub-block indicating bit and sub-block marker of carrying.

6. the apparatus according to claim 1, which is characterized in that first generation module are as follows:

Second generation unit, for when the different target workbench belongs to the multicast group identified by the same multicast AID, Generate the receiving end address field using the multicast AID.

7. a kind of device of frame parsing, which is characterized in that be applied to receiving end workbench, described device includes:

Receiving module, for receiving the MPDU of transmitting terminal workbench transmission, the MPDU is transmitting terminal workbench in each matchmaker Adding purpose address, source address, the length of the MSDU and sequence control bit before body access control layer service data unit MSDU In the one or several media access control layer service data unit A-MSDU for being packaged into a polymerization subframe, and will be multiple The subframe of A-MSDU aggregates into an A-MSDU, wherein the object tables of at least two MSDU are different；According to the different mesh Mark workbench predicable generate use association identification AID structure receiving end address field, using the A-MSDU as load, The AID structure is generated as receiving end address field, the AID structure includes the AID of the different target workbench；

Parsing module, for parsing the receiving end address field of the MPDU；

Searching module, for when the AID structure of the receiving end address field includes the AID of receiving end workbench, described in parsing A-MSDU searches the MSDU that the receiving end workbench is sent in the A-MSDU according to the destination address of A-MSDU subframe.

8. device according to claim 7, which is characterized in that the judgment module includes:

First judging unit judges that the AID structure is according to the marker for obtaining marker according to the indicating bit The no AID comprising the receiving end workbench.

9. device according to claim 8, which is characterized in that first judging unit are as follows:

First judgment sub-unit, when for being page indicating bit entrained by the AID structure of the receiving end address field, according to institute It states page indicating bit and obtains page marker, judge whether the AID of the receiving end workbench belongs to what the page marker was identified Page.

10. device according to claim 8, which is characterized in that first judging unit are as follows:

Second judgment sub-unit, when for being block indicating bit entrained by the AID structure of the receiving end address field, according to institute It states block indicating bit and obtains block identification position, judge whether the AID of the receiving end workbench belongs to what the block identification position was identified Block.

11. device according to claim 8, which is characterized in that first judging unit are as follows:

Third judgment sub-unit, when for being sub-block indicating bit entrained by the AID structure of the receiving end address field, according to The sub-block indicating bit obtains sub-block marker, judges whether the AID of the receiving end workbench belongs to the sub-block marker The sub-block identified.

12. device according to claim 7, which is characterized in that the judgment module includes:

Second judgment unit, for judging whether the multicast AID of the receiving end address field is belonging to the receiving end workbench Multicast group multicast AID.

13. a kind of transmitting terminal workbench, which is characterized in that the transmitting terminal workbench includes:

First memory and first processor, for storing instruction, the first processor is for transferring for the first memory Instruction, described instruction include:

Adding purpose address, source address, the length of the MSDU before each media access control layer service data unit MSDU One or several in degree and sequence control bit is packaged into the media access control layer service data unit A-MSDU of a polymerization Subframe；

The subframe of multiple A-MSDU is aggregated into an A-MSDU, wherein the object tables of at least two MSDU are different；

The receiving end address for using association identification AID structure is generated according to the predicable of the AID of the different target workbench Domain, the AID structure include the AID of the different target workbench；

Using the A-MSDU as load, a media access control layer is generated using the AID structure as receiving end address field Protocol Data Unit MPDU；

The MPDU is sent, in order to the receiving end address field of the received MPDU of receiving end workbench parsing, works as institute When stating the AID structure of receiving end address field comprising the AID of the receiving end workbench, the receiving end workbench parses the A- MSDU searches the MSDU that the receiving end workbench is issued in the A-MSDU according to the destination address of A-MSDU subframe.

14. a kind of receiving end workbench, which is characterized in that the receiving end workbench includes:

Second memory and second processor, for storing instruction, the second processor is for transferring for the second memory Instruction, described instruction include:

The MPDU that transmitting terminal workbench is sent is received, the MPDU is that transmitting terminal workbench takes in each media access control layer One or several before business data cell MSDU in adding purpose address, source address, the length of the MSDU and sequence control bit It is packaged into the subframe of the media access control layer service data unit A-MSDU of a polymerization, and the subframe of multiple A-MSDU is gathered Synthesize an A-MSDU, wherein the object tables of at least two MSDU are different；According to the common of the different target workbench Attribute generates the receiving end address field for using association identification AID structure, using the A-MSDU as load, by the AID structure It is generated as receiving end address field, the AID structure includes the AID of the different target workbench；

Parse the receiving end address field of the MPDU；

When the AID structure of the receiving end address field includes the AID of receiving end workbench, the A-MSDU is parsed, according to A- The destination address of MSDU subframe searches the MSDU that the receiving end workbench is sent in the A-MSDU.

15. a kind of communication system, which is characterized in that the communication system includes:

Receiving end workbench described in transmitting terminal workbench and at least two claims 14 described in claim 13.

16. a kind of method of frame aggregation, which is characterized in that be applied to transmitting terminal workbench, which comprises

17. according to the method for claim 16, which is characterized in that according to the common of the AID of the different target workbench Attribute is generated includes: using the receiving end address field of AID structure

According to indicating bit and marker entrained by the predicable of the AID of different target workbench setting AID structure, institute It states indicating bit and is used to indicate the significant position of AID structure, the marker is position significant in the AID structure, for wrapping AID containing the different target workbench；

18. according to the method for claim 17, which is characterized in that the AID's according to the different target workbench Indicating bit entrained by predicable setting AID structure and marker include:

When the AID of the different target workbench belongs to same one page, page indicating bit entrained by AID structure and page mark are set Position.

19. according to the method for claim 17, which is characterized in that the AID's according to the different target workbench Indicating bit entrained by predicable setting AID structure and marker include:

When the AID of the different target workbench belongs to same, block indicating bit and block identification entrained by AID structure are set Position.

20. according to the method for claim 17, which is characterized in that the AID's according to the different target workbench Indicating bit entrained by predicable setting AID structure and marker include:

When the AID of the different target workbench belongs to same sub-block, sub-block indicating bit and son entrained by AID structure are set Block identification position.

21. according to the method for claim 16, which is characterized in that according to the common of the AID of the different target workbench Attribute is generated includes: using the receiving end address field of AID structure

When the different target workbench belongs to the multicast group identified by the same multicast AID, generates and use the multicast The receiving end address field of AID.

22. a kind of method of frame parsing, which is characterized in that be applied to receiving end workbench, which comprises

Parse the receiving end address field of the MPDU；

23. according to the method for claim 22, which is characterized in that judge the receiving end address field AID structure whether AID comprising receiving end workbench includes:

Marker is obtained according to the indicating bit, judges whether the AID structure includes the receiving end according to the marker The AID of workbench.

24. according to the method for claim 23, which is characterized in that it is described that marker is obtained according to the indicating bit, according to The marker judges whether the AID structure includes that the AID of the receiving end workbench includes:

When being page indicating bit entrained by the AID structure of the receiving end address field, page mark is obtained according to the page indicating bit Know position, judges whether the AID of the receiving end workbench belongs to the page that the page marker is identified.

25. according to the method for claim 23, which is characterized in that it is described that marker is obtained according to the indicating bit, according to The marker judges whether the AID structure includes that the AID of the receiving end workbench includes:

When being block indicating bit entrained by the AID structure of the receiving end address field, block mark is obtained according to described piece of indicating bit Know position, judges whether the AID of the receiving end workbench belongs to the block that the block identification position is identified.

26. according to the method for claim 23, which is characterized in that it is described that marker is obtained according to the indicating bit, according to The marker judges whether the AID structure includes that the AID of the receiving end workbench includes:

When being sub-block indicating bit entrained by the AID structure of the receiving end address field, obtained according to the sub-block indicating bit Sub-block marker, judges whether the AID of the receiving end workbench belongs to the sub-block that the sub-block marker is identified.

27. according to the method for claim 22, which is characterized in that judge the receiving end address field AID structure whether AID comprising receiving end workbench includes:

Judge the receiving end address field multicast AID whether be multicast group belonging to the receiving end workbench multicast AID.