CN103379544B - Method, device and system for determining communication transmission mode - Google Patents
Method, device and system for determining communication transmission mode Download PDFInfo
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- CN103379544B CN103379544B CN201210121419.3A CN201210121419A CN103379544B CN 103379544 B CN103379544 B CN 103379544B CN 201210121419 A CN201210121419 A CN 201210121419A CN 103379544 B CN103379544 B CN 103379544B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention discloses a method for determining a communication transmission mode so as to obtain the transmission mode. An initial transmission mode comprises a single-user open loop mode larger than or equal to 2MHz or a single-user beam forming mode larger than or equal to 2MHz or a multiple-user mode larger than or equal to 2MHz. Data to be sent are packaged to a frame according to the obtained transmission mode, a preamble of the frame comprises two indications used for identifying the transmission mode, the two indications are used for enabling a receiving end to identify the transmission mode of the frame to be a single user or multiple users according to the first indication, and to identify the transmission mode of the frame to be of an open loop or beam forming according to the second indication; the frame is sent to the receiving end according to the transmission mode. According to the technical scheme of the embodiment, three transmission modes, larger than or equal to 2MHz, of the frame can be distinguished, and accuracy of data processing is improved.
Description
Technical field
The present invention relates to communication technical field, and in particular to one determines method, the apparatus and system of communication transmission mode.
Background technology
There are various different transmitting scenes in wireless transmitting system, such as：Different bandwidth, single user/multi-user, whether prop up
Hold beam forming etc..When frame is transmitted, leading (Preamble) of various different frames can be designed, the leading namely frame of frame
Header is meeting different use scenes.
At present 1MHz can be divided into and more than or equal to the classes of 2MHz two according to bandwidth, and be more than or equal in 2MHz be divided into it is alone
Family open loop (SU-OL, single user-open loop), single user beam forming (SU-BF, single user-
Beamforming), three kinds of different patterns of multi-user (multiple user, MU).Wherein SU-BF is newly-increased pattern, adopts
With MU identical frame formats.
1MHz and more than or equal to 2MHz bandwidth modes identification have two ways.The first be using frame it is leading in long instruction
Practice domain (LTF, long training field) sequence automatic detection (autodetection), its principle is to cause by design
The LTF sequences of 1MHz are orthogonal with the LTF sequences of 2MHz, so as to receiving terminal can distinguish two kinds of different bandwidths by orthogonality
Transmission mode；Second is constellation rotation automatic detection mode, and its principle is the orthogonal frequency of the 3rd LTF in 1MHz patterns
Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol uses fixed two-phase phase shift key
Control (BPSK, Binary Phase Shift Keying) modulation, and it is corresponding more than or equal to signal identification in 2MHz patterns
First OFDM symbol of (SIG, Singal) adopts orthogonal bi Phase Shift Keying (QBPSK, Quadrature Binary Phase
Shift Keying) modulation, BPSK is the modulation of I roads, and QBPSK is modulated to the modulation of Q roads, and I roads are orthogonal with Q roads, and now receiving terminal is logical
Cross and detect that the Energy distribution on I roads and Q roads can just distinguish the transmission mode of two kinds of different bandwidths.
In prior art, accorded with by second OFDM of SIG more than or equal to the single user and multi-user mode in MHz patterns
Number modulation system realizing, single user mode is modulated using QBPSK, and multi-user mode is modulated using BPSK.For being more than
Three different patterns are included in pattern equal to 2MHz：Single user open loop, single user beam forming and multi-user, prior art
These three patterns can not be distinguished, receiving terminal can be caused normally to read the data encapsulated in frame.
The content of the invention
The embodiment of the present invention provides a kind of method for determining communication transmission mode, can will be greater than being equal to the three of the frame of 2MHz
Plant transmission mode to distinguish, improve the accuracy of data processing.The embodiment of the present invention also provides corresponding apparatus and system.
A kind of method for determining communication transmission mode, including：
Transmission mode is obtained, the transmission mode is included more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz
Single user beamformed mode or more than or equal to 2MHz multi-user modes；
Data to be sent are encapsulated into framing according to the transmission mode of the acquisition, the frame it is leading in comprising for identifying
Two instructions of the transmission mode, it is described two to indicate for making receiving terminal identify the frame according to wherein first instruction
Transmission mode be single user or multi-user, according to wherein second indicate the transmission mode for identifying the frame be open loop or
It is beam forming；
According to the transmission mode, to receiving terminal the frame is sent.
A kind of method of the transmission mode for determining communication frame, including：
The frame that receiving end/sending end sends, the frame it is leading in comprising for identifying two of transmission mode instructions；
Obtain the frame it is leading in described two instructions, indicated to identify the transmission of the frame according to wherein first
Pattern is single user or multi-user, according to wherein second indicate the transmission mode for identifying the frame be open loop or wave beam into
Type；
Wherein, the transmission mode is included more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single user ripples
Beam forming pattern and more than or equal to 2MHz multi-user modes.
One kind sends end device, including：
First acquisition unit, for obtaining transmission mode, the transmission mode is included more than or equal to 2MHz single user open loops
Pattern, more than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；
Encapsulation unit, for data to be sent to be encapsulated into framing according to the transmission mode that the first acquisition unit is obtained,
The frame it is leading in comprising for identifying two of transmission mode instructions, it is described two indicate for make receiving terminal according to
Wherein first indicates that the transmission mode for identifying the frame is single user or multi-user, and according to wherein second identification is indicated
The transmission mode for going out the frame is open loop or beam forming；
Transmitting element, for according to the transmission mode, to receiving terminal the frame of the encapsulation unit encapsulation being sent.
A kind of receiving end device, including：
Receiving unit, for the frame that receiving end/sending end sends, the frame it is leading in comprising for identifying the transmission mould
Two instructions of formula；
Second acquisition unit, for obtain the frame that the receiving unit is received it is leading in described two instructions；
Recognition unit, wherein first for being obtained according to the second acquisition unit indicates the biography for identifying the frame
Defeated pattern is single user or multi-user, and according to wherein second instruction that the first acquisition unit is obtained the frame is identified
Transmission mode is open loop or beam forming, wherein, the transmission mode includes more than or equal to 2MHz single user open loop modes, is more than
Equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
A kind of system for determining communication transmission mode, including：Send end device and receiving end device；
The end device that sends is the device described in above-mentioned technical proposal；
The end device that sends is the device described in above-mentioned technical proposal.
The embodiment of the present invention includes being opened more than or equal to 2MHz single users using transmission mode, the initial transmission pattern is obtained
Ring mode, more than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；Data to be sent are pressed
Encapsulate framing according to the transmission mode of the acquisition, the frame it is leading in comprising for identifying two of transmission mode fingers
Show, it is described two indicate for make receiving terminal according to wherein first indicate identify the frame transmission mode be single user or
It is multi-user, is open loop or beam forming according to the transmission mode that wherein second indicates to identify the frame；According to described
Transmission mode, to receiving terminal the frame is sent.With the transmission that three kinds of frames more than or equal to 2MHz are cannot be distinguished by out in prior art
Pattern is compared, technical scheme provided in an embodiment of the present invention, and the three kinds of transmission modes that can will be greater than the frame equal to 2MHz are distinguished
Open, improve the accuracy of data processing.
Description of the drawings
Fig. 1 is an embodiment schematic diagram of method in the embodiment of the present invention；
Fig. 2 is another embodiment schematic diagram of method in the embodiment of the present invention；
Fig. 3 is an embodiment schematic diagram of transmitting terminal of the present invention；
Fig. 4 is an embodiment schematic diagram of receiving terminal of the present invention；
Fig. 5 is an embodiment schematic diagram of present system.
Specific embodiment
The embodiment of the present invention provides a kind of method for determining communication transmission mode, can will be greater than being equal to the three of the frame of 2MHz
Plant transmission mode to distinguish, improve the accuracy of data processing.The embodiment of the present invention also provides corresponding apparatus and system.With
It is lower to be described in detail respectively.
Receiving terminal in the embodiment of the present invention can also be transmitting terminal, and transmitting terminal can also be receiving terminal, such as website (STA,
Station), access point (AP, Access Point), the transmitting terminal and receiving terminal that the embodiment of the present invention is provided all has transmission
With receive dual-use function, simply because interacting in specific primary information during, play the part of different role, and be divided into receiving terminal with
Transmitting terminal.
Refering to Fig. 1, from for the angle of transmitting terminal, the enforcement for determining communication transmission mode provided in an embodiment of the present invention
Example includes：
101st, transmission mode is obtained.
Transmitting terminal before framing is encapsulated data, first getting frame transmission mode, the transmission mode of frame include more than etc.
In 2MHz single user open loop modes, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
102nd, data to be sent are encapsulated into framing according to the transmission mode of the acquisition, the frame it is leading in comprising being used for
Identify two instructions of the transmission mode.
It is described two to indicate for making receiving terminal indicate that the transmission mode for identifying the frame is single according to wherein first
User or multi-user, are open loop or beam forming according to the transmission mode that wherein second indicates to identify the frame.
Frame (Frame) is unit of the data in transmission over networks, and " frame " is made up of two parts：The leading and frame data of frame,
The leading of frame can be used to do synchronization, channel estimation, frame information instruction etc., and in frame information indication field (such as SIG) band can be included
The information such as width, coding, modulation type, frame is transmitted in a network has 1MHz and more than or equal to the classes of 2MHz two according to bandwidth partition, its
The transmission mode of middle 1MHz has one kind, and the transmission mode more than or equal to 2MHz has three kinds, respectively more than or equal to 2MHz single users
Open loop mode, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
The form of the frame of every kind of transmission mode is different, such as following table：
Table 1：The frame format of the pattern of 1MHz
| STF1 | LTF1 | SIG | LTF2～LTFN | Data |
Table 2：More than or equal to the frame format of 2MHz single user open loop modes
| STF | LTF1 | SIG | LTF2～LTFN | Data |
Table 3：More than or equal to the frame format of 2MHz single users beam forming/multi-user mode
| STF | LTF1 | SIGA | MU-STF | MU-LTF1～MU-LTFN | SIGB | Data |
Wherein single user beam forming is identical with the frame format of multi-user, and multi-user mode is actually multi-user beam
Molding pattern.
SIG fields involved in the embodiment of the present invention include the SIG fields more than or equal to 2MHz single user open loop modes
With the SIGA fields more than or equal to 2MHz beamformed modes and multi-user mode.
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, specifically include：Determine the frame
It is leading, using the modulation system of the portion of carriers of an OFDM symbol in the leading SIG fields of the frame as first
Indicate, the modulation system of another part carrier wave is used as second instruction；Wherein, when the modulation system of the portion of carriers is used for
When the transmission mode for indicating the frame is single user or multi-user, the modulation system of another part carrier wave is described for indicating
The transmission mode of frame is open loop or beam forming, or when the modulation system of the portion of carriers is used to indicate the biography of the frame
When defeated pattern is open loop or beam forming, the modulation system of another part carrier wave is used to indicate that the transmission mode of the frame to be
Single user or multi-user.
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, specifically include：Determine the frame
It is leading, using the modulation system of the carrier wave of first OFDM symbol in the leading SIG fields of the frame as first instruction,
The modulation system of the carrier wave of second OFDM symbol is used as second instruction；Wherein, when the carrier wave of first OFDM symbol
Modulation system be used to indicating that the transmission mode of the frame to be single user or during multi-user, the carrier wave of second OFDM symbol
The modulation system transmission mode that is used to indicate the frame be open loop or beam forming, or when first OFDM symbol
When the transmission mode that the modulation system of carrier wave is used to indicate the frame is open loop or beam forming, second OFDM symbol
The transmission mode that the modulation system of carrier wave is used to indicate the frame is single user or multi-user.
When the transmission mode also includes 1MHz bandwidth modes, by described two four kinds of states difference indicated after combination
For indicate 1MHz bandwidth modes, it is described more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single users wave beam into
Pattern formula and more than or equal to 2MHz multi-user modes.
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, specifically include：Determine the frame
It is leading, using the modulation system of the carrier wave of an OFDM symbol in the leading SIG fields of the frame as first instruction, and
Using the indication bit arranged in the SIG fields as second instruction；
When the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is single user or multiplex
During family, the indication bit is used to indicating that the transmission mode of the frame to be open loop or beam forming, or, when the OFDM symbol
The modulation system transmission mode that is used to indicate the frame of carrier wave be open loop or beam forming, the indication bit is used to indicate
The transmission mode of the frame is single user or multi-user.
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, specifically include：Determine the frame
It is leading, using the modulation system of the carrier wave of an OFDM symbol in the leading SIG fields of the frame as first instruction, and
By the numerical value of setting group mark (GID, Group ID) in the SIG fields as second instruction；Wherein, the OFDM symbol
The modulation system transmission mode that is used to indicate the frame of carrier wave be open loop or beam forming, specific GID numerical value is used to refer to
The transmission mode for showing the frame is single user, and the transmission mode that other GID numerical value are used to indicate the frame is multi-user.For example
GID is represented with 6 bits, then numerical value is 0～63, the single user specified can be represented with 0 or 63, in addition to 0 or 63
Other numerical value represent multi-user.
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, specifically include：Determine the frame
It is leading, using the modulation system of the carrier wave of an OFDM symbol in the leading SIG fields of the frame as first instruction, and
The numerical value of MCS will be set in the SIG fields used as second instruction；Wherein, the modulation system of the carrier wave of the OFDM symbol
For indicating that the transmission mode of the frame is open loop or beam forming, the numerical value of the MCS in specified scope is used to indicate institute
The transmission mode for stating frame is single user, and the transmission mode that the numerical value of the MCS outside specified scope is used to indicate the frame is many
User.Such as MCS is represented with 4 bits, then numerical value is 0～15, and the scope specified can be represented with 0～9, then when
When the numerical value of MCS is 0～9 any number, represent single user, when MCS numerical value not in the range of 0～9 when, such as 15, represent
Multi-user.The real MCS value of data division can be indicated by the MCS fields in SIGB in multi-user transmission pattern.
Above SIG field is included more than or equal to the SIG fields of 2MHz single user open loop modes and more than or equal to 2MHz wave beams
The SIGA fields of molding pattern and multi-user mode.
Modulation system in the embodiment of the present invention can be biphase phase shift keying BPSK modulation or orthogonal bi Phase Shift Keying
QBPSK is modulated.
103rd, according to the transmission mode, to receiving terminal the frame is sent.
Transmitting terminal is sent to packaged frame after receiving terminal, the scheme that receiving terminal is just provided according to above-described embodiment, root
Indicate that the transmission mode for identifying the frame is single user or multi-user according to wherein first, according to wherein second identification is indicated
The transmission mode for going out the frame is open loop or beam forming, and the transmission mode is included more than or equal to 2MHz single user open loop moulds
Formula, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
In the embodiment of the present invention, transmission mode is obtained, the transmission mode is included more than or equal to 2MHz single user open loop moulds
Formula, more than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；By data to be sent according to institute
State the transmission mode encapsulation framing of acquisition, the frame it is leading in comprising for identifying two of transmission mode instructions, institute
State two to indicate for making receiving terminal be single user or many according to wherein first transmission mode for indicating to identify the frame
User, is open loop or beam forming according to the transmission mode that wherein second indicates to identify the frame；According to the transmission
Pattern, to receiving terminal the frame is sent.With the transmission mode that three kinds of frames more than or equal to 2MHz are cannot be distinguished by out in prior art
Compare, technical scheme provided in an embodiment of the present invention, transmission end device provided in an embodiment of the present invention, in encapsulation of data, is pressed
Arrange according to transmission mode and indicate, distinguish three kinds of transmission modes that receiving terminal will be greater than the frame equal to 2MHz, improve
The accuracy of data processing.
Refering to Fig. 2, from for the angle of receiving terminal, the method for determination communication transmission mode is another in the embodiment of the present invention
Embodiment includes：
201st, the frame that receiving end/sending end sends, the frame it is leading in comprising for identifying two of transmission mode fingers
Show.
Receiving terminal is received after frame, first to determine the transmission mode of the frame, so, could correctly read frame data.
202nd, obtain the frame it is leading in described two instructions.
In the embodiment of the present invention, have in the SIG fields being directed in table 2 two OFDMs (OFDM,
Orthogonal Frequency Division Multiplexing) symbol, SIG can be divided into SIG1 and SIG2,
There is an OFDM symbol in SIG1 fields, there is an OFDM symbol in SIG2 fields, for the SIGA in table 3 similarly can draw
Being divided in SIGA1 and SIGA2, SIGA1 field has an OFDM symbol, there is an OFDM symbol in SIGA2 fields.
In transmitting terminal encapsulated frame, one of OFDM symbol can be divided into two parts by transmitting terminal, by a portion
The carrier wave of OFDM symbol can be modulated using biphase phase shift keying (BPSK, Binary Phase Shift Keying), it is also possible to
Modulated using QPSK (QBPSK, Quadrature Binary Phase Shift Keying), another part OFDM
The carrier wave of symbol can be modulated using BPSK, it would however also be possible to employ QBPSK is modulated, according to BPSK modulation, then the energy of frame point
Cloth is modulated, then the Energy distribution of frame is on Q roads on I roads according to QBPSK.
It is described obtain the frame it is leading in described two instructions, specifically include：By the Energy distribution of detection frame, obtain
The leading information for taking the frame indicates that two parts of an orthogonal frequency division multiplex OFDM symbol in SIG fields carry wave modulation
Mode.
By energy measuring, if the Energy distribution for detecting is on I roads, illustrate to use BPSK modulation, if detect
Energy distribution illustrates to use QBPSK modulation on Q roads.
The one of which way of example of described two instructions is simply obtained above, be can also be：
It is described obtain the frame it is leading in described two instructions, specifically include：By the Energy distribution of detection frame, obtain
Take the modulation system and the load of second OFDM symbol of the carrier wave of first OFDM symbol in the leading SIG fields of the frame
Wave modulation mode.
This mode is, in transmitting terminal encapsulated frame, the part or all of carrier wave of first OFDM symbol is adopted into BPSK
Modulation is modulated using QBPSK, and the part or all of carrier wave of second OFDM symbol is modulated using BPSK or adopted
QBPSK is modulated, according to BPSK modulation, then the Energy distribution of frame is modulated on I roads according to QBPSK, then the energy of frame point
Cloth is on Q roads.
The one of which way of example of described two instructions is obtained, be can also be：
It is described obtain the frame it is leading in described two instructions, specifically include：By the Energy distribution of detection frame, obtain
The modulation system of the carrier wave of an OFDM symbol in the leading SIG fields of the frame is taken, and is obtained in the SIG fields
Indication bit.
This mode is, in transmitting terminal encapsulated frame, the part or all of carrier wave of one of OFDM symbol is adopted
BPSK is modulated or modulated using QBPSK, according to BPSK modulation, then the Energy distribution of frame is adjusted on I roads according to QBPSK
System, then the Energy distribution of frame is on Q roads.
The one of which way of example of described two instructions is obtained, be can also be：
It is described obtain the frame it is leading in described two instructions, specifically include：By the Energy distribution of detection frame, obtain
The modulation system of the carrier wave of an OFDM symbol in the leading SIG fields of the frame is taken, and is obtained in the SIG fields and is adjusted
The numerical value of type of coding MCS processed.
This mode is, in transmitting terminal encapsulated frame, the part or all of carrier wave of one of OFDM symbol is adopted
BPSK is modulated or modulated using QBPSK, according to BPSK modulation, then the Energy distribution of frame is adjusted on I roads according to QBPSK
System, then the Energy distribution of frame is on Q roads.
Several schemes provided above, actually when in use, receiving terminal and transmitting terminal can only with one of which,
If that is receiving terminal and transmitting terminal agreement regulation, if only with the first, then in encapsulated frame, can be by second
OFDM symbol is divided into two parts, can be adjusted using BPSK per the carrier wave of part OFDM symbol, it would however also be possible to employ QBPSK is modulated, and receives
The Energy distribution of two parts carrier wave of second OFDM symbol is detected when energy is detected in end.
Other several schemes when agreement specifies, reason is identical, once agreement determines, just using its arrange by the way of use
To distinguish the transmission mode of frame.
203rd, it is single user or multi-user according to wherein first transmission mode for indicating to identify the frame, according to wherein
Second indicates that the transmission mode for identifying the frame is open loop or beam forming.
The transmission mode is included more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single user beam formings
Pattern and more than or equal to 2MHz multi-user modes.
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein
Second transmission mode for indicating to identify the frame is open loop or beam forming, is specifically included：According to a portion carrier wave
Modulation system, the transmission mode for determining the frame is single user or multi-user, according to the modulation methods of wherein another part carrier wave
Formula, the transmission mode for determining the frame is open loop or beam forming.
Through energy measuring twice, on I roads energy is detected, it may be determined that employ BPSK modulation, detect on Q roads
Energy, it may be determined that QBPSK modulation is employed, if the agreement that receiving terminal and transmitting terminal are pre-established is (BPSK, BPSK) generation
Form user open loop, (BPSK, QBPSK) represents single user beam forming, and (QBPSK, QBPSK) represents multi-user, then pass through
Twice energy measuring is assured that the transmission mode of frame.Certainly, agreement regulation can also be other forms, to BPSK and
The meaning that refers to of QBPSK is not limited.
The transmission mode also includes 1MHz bandwidth modes；When the transmission mode also includes 1MHz bandwidth modes, will
Described two four kinds of states indicated after combination are respectively used to indicate 1MHz bandwidth modes, described open more than or equal to 2MHz single users
Ring mode, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
When there is energy measuring twice, the transmission mode of frame can be determined according to the modulation system for determining twice；When only
When primary energy is detected, then can only determine single user or multi-user according to modulation system, or, determine open loop or wave beam
Molding, if also having got indication bit, such as 0 or 1, then can be specified with agreement (BPSK, 0) represents single user open loop,
(BPSK, 1) represents single user beam forming, and (QBPSK, 1) represents multi-user, then according to the modulation system and instruction that detect
Bit is assured that the transmission means of frame.It is of course also possible to single user or multi-user are represented with indication bit, such as (0,
BPSK single user open loop) is represented, the present embodiment is not limited the indicative significance of BPSK, Q BPSK, 0,1.
When the detection inspection of only primary energy, according to the modulation system, the transmission mode for determining the frame be open loop or
Beam forming, can be to determine single user or multi-user, such as when the GID is according to the numerical value of group mark GID in SIG fields
During special value, the transmission mode for determining the frame is single user, when the numerical value of the GID is not equal to the special value, really
The transmission mode of the fixed frame is multi-user.Such as GID is represented with 6 bits, then numerical value is 0～63, can be with 0 or 63
Single user is represented, when the numerical value of GID is not 0 or 63, multi-user is represented.
When the detection inspection of only primary energy, according to the modulation system, the transmission mode for determining the frame be open loop or
Beam forming, can be to determine single user or multi-user, as worked as according to the numerical value of modulating-coding type MCS in SIG fields
When stating the numerical value of MCS in specified scope, the transmission mode for determining the frame is single user, when the numerical value of the MCS is referring to
When outside fixed scope, the transmission mode for determining the frame is multi-user.Such as MCS is represented with 4 bits, then numerical value is 0
～15, the scope specified can be represented with 0～9, then when any number that the numerical value of MCS is 0～9, single user is represented, when
The numerical value of MCS not in the range of 0～9 when, such as 15, represent multi-user.Can be by SIGB in multi-user transmission pattern
MCS fields indicate the real MCS value of data division.
The SIG fields and ＞ 2MHz beamformed modes of above SIG field including ＞ 2MHz single user open loop modes and many
The SIGA fields of user model.
Modulation system in the embodiment of the present invention is that biphase phase shift keying BPSK is modulated or orthogonal bi Phase Shift Keying QBPSK is adjusted
System.
In the embodiment of the present invention, the frame that receiving end/sending end sends, the frame it is leading in comprising for identifying the transmission
Two instructions of pattern；Obtain the frame it is leading in described two instructions；According to wherein first instruction is identified
The transmission mode of frame is single user or multi-user, according to wherein second indicate the transmission mode for identifying the frame be open loop or
Beam forming, the transmission mode include more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single users wave beam into
Pattern formula and more than or equal to 2MHz multi-user modes.With the biography that three kinds of frames more than or equal to 2MHz are cannot be distinguished by out in prior art
Defeated pattern is compared, technical scheme provided in an embodiment of the present invention, can will be greater than three kinds of transmission mode areas of the frame equal to 2MHz
Separate, improve the accuracy of data processing.
The embodiment of the present invention provides the device for realizing said method, such as the access point AP or website in WLAN
STA.The step of specific device can realize said method and flow process, device is able to carry out above-mentioned in specific communication process
Method, and according to the method described above come complete communication.
Refering to Fig. 3, an embodiment of transmission end device provided in an embodiment of the present invention includes：
First acquisition unit 301, for obtaining transmission mode, the transmission mode includes being opened more than or equal to 2MHz single users
Ring mode, more than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；
Encapsulation unit 302, for data to be sent to be encapsulated according to the transmission mode that the first acquisition unit 301 is obtained
Framing, the frame it is leading in comprising for identifying two of transmission mode instructions, it is described two to indicate for making reception
End indicates that the transmission mode for identifying the frame is single user or multi-user according to wherein first, according to wherein second finger
Show that the transmission mode for identifying the frame is open loop or beam forming；
Transmitting element 303, for according to the transmission mode, to receiving terminal the frame of the encapsulation of encapsulation unit 302 being sent.
In the embodiment of the present invention, first acquisition unit 301 obtains transmission mode, and the transmission mode includes being more than or equal to
2MHz single user open loop modes, more than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；Envelope
Data to be sent are encapsulated framing by dress unit 302 according to the transmission mode that the first acquisition unit 301 is obtained, before the frame
It is described two to indicate for making receiving terminal according to wherein first comprising being used to identify two instructions of the transmission mode in leading
The transmission mode for indicating to identify the frame is single user or multi-user, and according to wherein second instruction the frame is identified
Transmission mode is open loop or beam forming；Transmitting element 303 sends the encapsulation single according to the transmission mode to receiving terminal
The frame of the encapsulation of unit 302.Compared with prior art, transmission end device provided in an embodiment of the present invention, in encapsulation of data, according to biography
Defeated pattern is arranged and indicated, distinguishes three kinds of transmission modes that receiving terminal will be greater than the frame equal to 2MHz, improves data
The accuracy of process.
On the basis of the corresponding embodiments of above-mentioned Fig. 3, another enforcement for sending end device provided in an embodiment of the present invention
Example includes：
The encapsulation unit 302, specifically for determining the leading of the frame, by the leading SIG fields of the frame
Used as first instruction, the modulation system of another part carrier wave is used as for the modulation system of the portion of carriers of one OFDM symbol
Two instructions；Wherein, when the transmission mode that the modulation system of the portion of carriers is used to indicate the frame is single user or many
During user, the modulation system of another part carrier wave is used to indicating that the transmission mode of the frame to be open loop or beam forming, or
Person is described another when the transmission mode that the modulation system of the portion of carriers is used to indicate the frame is open loop or beam forming
The transmission mode that the modulation system of portion of carriers is used to indicate the frame is single user or multi-user.
On the basis of the corresponding embodiments of above-mentioned Fig. 3, another enforcement for sending end device provided in an embodiment of the present invention
Example includes：
The encapsulation unit 302, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of first OFDM symbol is made as first instruction, the modulation system of the carrier wave of second OFDM symbol
For second instruction；Wherein, when the modulation system of the carrier wave of first OFDM symbol is used to indicate the transmission mould of the frame
When formula is single user or multi-user, the modulation system of the carrier wave of second OFDM symbol is used to indicate the transmission mould of the frame
Formula is open loop or beam forming, or when the modulation system of the carrier wave of first OFDM symbol is used to indicate the biography of the frame
When defeated pattern is open loop or beam forming, the modulation system of the carrier wave of second OFDM symbol is used to indicate the biography of the frame
Defeated pattern is single user or multi-user.
On the basis of the corresponding embodiments of above-mentioned Fig. 3, another enforcement for sending end device provided in an embodiment of the present invention
Example includes：
The encapsulation unit 302, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of one OFDM symbol makees the indication bit arranged in the SIG fields as first instruction
For second instruction；Wherein, when the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is single
When user or multi-user, the indication bit is used to indicating that the transmission mode of the frame to be open loop or beam forming, or, work as institute
The transmission mode that stating the modulation system of the carrier wave of OFDM symbol is used to indicate the frame is open loop or beam forming, the instruction ratio
Spy is single user or multi-user for the transmission mode for indicating the frame.
On the basis of the corresponding embodiments of above-mentioned Fig. 3, another enforcement for sending end device provided in an embodiment of the present invention
Example includes：
The encapsulation unit 302, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of one OFDM symbol as first instruction, and using in the SIG fields arrange GID numerical value as
Second instruction；Wherein, the modulation system of the carrier wave of the OFDM symbol be used for indicate the frame transmission mode be open loop or
Beam forming, the transmission mode with frame described in the numerical value of specific GID is single user, with the GID in addition to special value
It is multi-user to be worth the transmission mode for indicating the frame.
On the basis of the corresponding embodiments of above-mentioned Fig. 3, another enforcement for sending end device provided in an embodiment of the present invention
Example includes：
The encapsulation unit 302, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of one OFDM symbol as first instruction, and using in the SIG fields arrange MCS numerical value as
Second instruction；Wherein, the modulation system of the carrier wave of the OFDM symbol be used for indicate the frame transmission mode be open loop or
Beam forming, the transmission mode that the numerical value of the MCS in specified scope is used to indicate the frame is single user, in specified model
The transmission mode that enclosing the numerical value of outer MCS is used to indicate the frame is multi-user.
More than, the transmission end device that multiple embodiments of the invention are provided, in encapsulation of data, is arranged according to transmission mode and referred to
Show, distinguish three kinds of transmission modes that receiving terminal will be greater than the frame equal to 2MHz, improve the accuracy of data processing.
Refering to Fig. 4, an embodiment of receiving end device provided in an embodiment of the present invention includes：
Receiving unit 401, for the frame that receiving end/sending end sends, the frame it is leading in comprising for identifying the transmission
Two instructions of pattern；
Second acquisition unit 402, for obtain the frame that the receiving unit 401 is received it is leading in described two fingers
Show；
Recognition unit 403, for obtained according to the second acquisition unit 402 wherein first indicate to identify described in
The transmission mode of frame is single user or multi-user, and according to wherein second instruction that the first acquisition unit is obtained institute is identified
The transmission mode for stating frame is open loop or beam forming, and the transmission mode is included more than or equal to 2MHz single user open loop modes, greatly
In equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
In the embodiment of the present invention, the frame that the receiving end/sending end of receiving unit 401 sends, the frame it is leading in comprising for marking
Know two instructions of the transmission mode；Second acquisition unit 402 obtain the frame that the receiving unit 401 is received it is leading in
Described two instructions；Recognition unit 403 identifies institute according to wherein first instruction that the second acquisition unit 402 is obtained
The transmission mode for stating frame is single user or multi-user, is identified according to wherein second instruction that the first acquisition unit is obtained
The transmission mode of the frame is open loop or beam forming, the transmission mode include more than or equal to 2MHz single user open loop modes,
More than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.Compared with prior art, the present invention
The receiving terminal that embodiment is provided, the three kinds of transmission modes that can will be greater than the frame equal to 2MHz are distinguished, and improve data processing
Accuracy.
On the basis of the corresponding embodiments of above-mentioned Fig. 4, another embodiment bag of receiving terminal provided in an embodiment of the present invention
Include：
The second acquisition unit 402, specifically for by the Energy distribution of detection frame, obtaining the leading letter of the frame
Breath indicates the modulation system of two parts carrier wave of an orthogonal frequency division multiplex OFDM symbol in SIG fields；
The recognition unit 403, specifically for a portion carrier wave for being obtained according to the second acquisition unit 402
Modulation system, the transmission mode for determining the frame is single user or multi-user, according to the modulation system of wherein another part carrier wave,
The transmission mode for determining the frame is open loop or beam forming.
On the basis of the corresponding embodiments of above-mentioned Fig. 4, another embodiment bag of receiving terminal provided in an embodiment of the present invention
Include：
The second acquisition unit 402, specifically for by the Energy distribution of detection frame, obtaining the leading of the frame
The modulation system of the modulation system of the carrier wave of first OFDM symbol in SIG fields and the carrier wave of second OFDM symbol；
The recognition unit 403, specifically for the one of OFDM symbol obtained according to the second acquisition unit 402
Carrier wave modulation system, the transmission mode for determining the frame is single user or multi-user, according to other in which OFDM symbol
Carrier wave modulation system, the transmission mode for determining the frame is open loop or beam forming.
On the basis of the corresponding embodiments of above-mentioned Fig. 4, another embodiment bag of receiving terminal provided in an embodiment of the present invention
Include：
The second acquisition unit 402, specifically for by the Energy distribution of detection frame, obtaining the leading of the frame
The modulation system of the carrier wave of an OFDM symbol in SIG fields, and obtain the indication bit in the SIG fields；
The recognition unit 403, specifically for the modulation methods obtained according to the second acquisition unit 402
Formula, the transmission mode for determining the frame is single user or multi-user, according to the indication bit, determines the transmission mode of the frame
For open loop or beam forming, or, according to the modulation system, the transmission mode for determining the frame is open loop or beam forming,
According to the indication bit, the transmission mode for determining the frame is single user or multi-user.
On the basis of the corresponding embodiments of above-mentioned Fig. 4, another embodiment bag of receiving terminal provided in an embodiment of the present invention
Include：
The second acquisition unit 402, specifically for by the Energy distribution of detection frame, obtaining the leading of the frame
The modulation system of the carrier wave of an OFDM symbol in SIG fields, and obtain the numerical value of group mark GID in the SIG fields；
The recognition unit 403, specifically for the modulation system obtained according to the second acquisition unit 402, really
The transmission mode of the fixed frame is open loop or beam forming, when the numerical value of the GID is specific numerical value, determines the frame
Transmission mode is single user, and when the numerical value of the GID is not equal to special value, the transmission mode for determining the frame is multiplex
Family.
On the basis of the corresponding embodiments of above-mentioned Fig. 4, another embodiment bag of receiving terminal provided in an embodiment of the present invention
Include：
The second acquisition unit 402, specifically for by the Energy distribution of detection frame, obtaining the leading of the frame
The modulation system of the carrier wave of an OFDM symbol in SIG fields, and obtain modulating-coding type MCS in the SIG fields
Numerical value；
The recognition unit 403, specifically for the modulation system obtained according to the second acquisition unit 402, really
The transmission mode of the fixed frame is open loop or beam forming, when the numerical value of the MCS is in specified scope, determines the frame
Transmission mode be single user, when the numerical value of the MCS is outside specified scope, determine the transmission mode of the frame for multiplex
Family.
More than, the receiving terminal that multiple embodiments of the invention are provided can will be greater than being equal to three kinds of transmission of the frame of 2MHz
Pattern is distinguished, and improves the accuracy of data processing.
Refering to Fig. 5, an embodiment of system provided in an embodiment of the present invention includes：Send end device 30 and receiving end device
40；
End device 30 is sent, for obtaining transmission mode；Data to be sent are encapsulated according to the transmission mode of the acquisition
Framing, the frame it is leading in comprising for identifying two of transmission mode instructions；According to the transmission mode, to reception
End sends the frame, makes receiving terminal indicate that the transmission mode for identifying the frame is single user or multiplex according to wherein first
Family, is open loop or beam forming according to the transmission mode that wherein second indicates to identify the frame, and the transmission mode includes
More than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user
Pattern.
Receiving end device 40, for the frame that receiving end/sending end sends, the frame it is leading in comprising for identifying the biography
Two instructions of defeated pattern；Obtain the frame it is leading in described two instructions；Institute is identified according to wherein first instruction
The transmission mode for stating frame is single user or multi-user, indicates that the transmission mode for identifying the frame is open loop according to wherein second
Or beam forming, the transmission mode include more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single user wave beams
Molding pattern and more than or equal to 2MHz multi-user modes.
System provided in an embodiment of the present invention, the three kinds of transmission modes that can will be greater than the frame equal to 2MHz are distinguished, and are carried
The high accuracy of data processing.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：ROM, RAM, disk or CD etc..
The transmission mode method for recognizing frame, device and the system for being provided the embodiment of the present invention above has been carried out in detail
Introduce, specific case used herein is set forth to the principle and embodiment of the present invention, the explanation of above example
It is only intended to help and understands the method for the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to this
The thought of invention, will change in specific embodiments and applications, and in sum, this specification content should not
It is interpreted as limitation of the present invention.
Claims (7)
1. it is a kind of determine communication transmission mode method, it is characterised in that include：
Transmission mode is obtained, the transmission mode is included more than or equal to 2MHz single user open loop modes, alone more than or equal to 2MHz
Family beamformed mode or more than or equal to 2MHz multi-user modes；
Data to be sent are encapsulated into framing according to the transmission mode of the acquisition, the frame it is leading in comprising described for identifying
Two instructions of transmission mode, it is described two to indicate for making receiving terminal according to wherein first biography for indicating to identify the frame
Defeated pattern is single user or multi-user, is open loop or ripple according to the transmission mode that wherein second indicates to identify the frame
Beam forming, wherein, the frame it is leading in indicate SIG fields or big comprising the information more than or equal to 2MHz single user open loop modes
In the SIGA fields equal to 2MHz beamformed modes and multi-user mode；
According to the transmission mode, to receiving terminal the frame is sent；
It is described that data to be sent are encapsulated into framing according to the transmission mode of the acquisition, including：
Determine the leading of the frame, the leading information of the frame is indicated into a part for an OFDM symbol in SIG fields
, used as first instruction, the modulation system of another part carrier wave of the OFDM symbol is used as second finger for the modulation system of carrier wave
Show；
Wherein, when the transmission mode that the modulation system of the portion of carriers is used to indicate the frame is single user or multi-user
When, the transmission mode that the modulation system of another part carrier wave is used to indicate the frame is open loop or beam forming, or is worked as
When the transmission mode that the modulation system of the portion of carriers is used to indicate the frame is open loop or beam forming, another portion
The transmission mode that the modulation system of sub-carrier is used to indicate the frame is single user or multi-user；
Or, the leading of the frame is determined, by the tune of the carrier wave of first OFDM symbol in the leading SIG fields of the frame
, used as first instruction, the modulation system of the carrier wave of second OFDM symbol is used as second instruction for mode processed；
Wherein, when the transmission mode that the modulation system of the carrier wave of first OFDM symbol is used to indicate the frame is single user
Or during multi-user, the modulation system of the carrier wave of second OFDM symbol be used to indicating the transmission mode of the frame be open loop or
Beam forming, or when the modulation system of the carrier wave of first OFDM symbol is used to indicate the transmission mode of the frame to open
When ring or beam forming, the transmission mode that the modulation system of the carrier wave of second OFDM symbol is used to indicate the frame is single
User or multi-user；
Or, the leading of the frame is determined, by the load wave modulation of an OFDM symbol in the leading SIG fields of the frame
Mode indicates the indication bit arranged in the SIG fields as second as first instruction；
Wherein, when the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is single user or multiplex
During family, the indication bit is used to indicating that the transmission mode of the frame to be open loop or beam forming, or, when the OFDM symbol
The modulation system transmission mode that is used to indicate the frame of carrier wave be open loop or beam forming, the indication bit is used to indicate
The transmission mode of the frame is single user or multi-user；
Or, the leading of the frame is determined, by the load wave modulation of an OFDM symbol in the leading SIG fields of the frame
Mode indicates the numerical value of the group mark GID arranged in the SIG fields as second as first instruction；
Wherein, the modulation system of the carrier wave of the OFDM symbol be used to indicating the transmission mode of the frame be open loop or wave beam into
Type, the transmission mode that specific GID numerical value is used to indicate the frame is single user, by other the GID numbers outside special value
It is multi-user to be worth the transmission mode for indicating the frame；
Or, the leading of the frame is determined, by the load wave modulation of an OFDM symbol in the leading SIG fields of the frame
Mode will arrange the numerical value of MCS as second instruction as first instruction in the SIG fields；
Wherein, the modulation system of the carrier wave of the OFDM symbol be used to indicating the transmission mode of the frame be open loop or wave beam into
Type, the transmission mode that the numerical value of the MCS in specified scope is used to indicate the frame is single user, outside specified scope
The transmission mode that the numerical value of MCS is used to indicate the frame is multi-user.
2. method according to claim 1, it is characterised in that the transmission mode also includes 1MHz bandwidth modes；
Described two four kinds of states indicated after combination are respectively used to indicate 1MHz bandwidth modes, described mono- more than or equal to 2MHz
User's open loop mode, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
3. it is a kind of determine communication frame transmission mode method, it is characterised in that include：
The frame that receiving end/sending end sends, the frame it is leading in comprising for identifying two of transmission mode instructions；
Obtain the frame it is leading in described two instructions, indicated to identify the transmission mode of the frame according to wherein first
For single user or multi-user, indicate that the transmission mode for identifying the frame is open loop or beam forming according to wherein second, its
In, the frame it is leading in indicate SIG fields or to be more than or equal to comprising the information more than or equal to 2MHz single user open loop modes
The SIGA fields of 2MHz beamformed modes and multi-user mode；
Wherein, the transmission mode include more than or equal to 2MHz single user open loop modes, more than or equal to 2MHz single users wave beam into
Pattern formula and more than or equal to 2MHz multi-user modes；
It is described obtain the frame it is leading in described two instructions, including：
By the Energy distribution of detection frame, the orthogonal frequency division multiplexing that the leading information of the frame is indicated in SIG fields is obtained
With the modulation system of two parts carrier wave of OFDM symbol；
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein second
It is individual to indicate that the transmission mode for identifying the frame is open loop or beam forming, including：
According to the modulation system of a portion carrier wave, the transmission mode for determining the frame is single user or multi-user, according to it
The modulation system of middle another part carrier wave, the transmission mode for determining the frame is open loop or beam forming；
Or, it is described obtain the frame it is leading in described two instructions, including：
By the Energy distribution of detection frame, the carrier wave of first OFDM symbol in the leading SIG fields of the acquisition frame
The modulation system of the carrier wave of modulation system and second OFDM symbol；
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein second
It is individual to indicate that the transmission mode for identifying the frame is open loop or beam forming, including：
According to the modulation system of the carrier wave of one of OFDM symbol, the transmission mode for determining the frame is single user or multiplex
Family, according to the modulation system of the carrier wave of other in which OFDM symbol, the transmission mode for determining the frame be open loop or wave beam into
Type；
Or, it is described obtain the frame it is leading in described two instructions, including：
By the Energy distribution of detection frame, the tune of the carrier wave of an OFDM symbol in the leading SIG fields of the acquisition frame
Mode processed, and obtain the indication bit in the SIG fields；
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein second
It is individual to indicate that the transmission mode for identifying the frame is open loop or beam forming, including：
According to the modulation system, the transmission mode for determining the frame is single user or multi-user, according to the indication bit, really
Calmly the transmission mode of the frame is open loop or beam forming, or, according to the modulation system, determine the transmission mode of the frame
For open loop or beam forming, according to the indication bit, the transmission mode for determining the frame is single user or multi-user；
Or, it is described obtain the frame it is leading in described two instructions, including：
By the Energy distribution of detection frame, the tune of the carrier wave of an OFDM symbol in the leading SIG fields of the acquisition frame
Mode processed, and obtain the numerical value of group mark GID in the SIG fields；
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein second
The individual transmission mode for indicating to identify the frame is open loop or beam forming, is specifically included：
According to the modulation system, the transmission mode for determining the frame is open loop or beam forming, when the numerical value of the GID is spy
During fixed number value, the transmission mode for determining the frame is single user, when the numerical value of the GID is not equal to special value, determines institute
The transmission mode for stating frame is multi-user；
Or, it is described obtain the frame it is leading in described two instructions, including：
By the Energy distribution of detection frame, the tune of the carrier wave of an OFDM symbol in the leading SIG fields of the acquisition frame
Mode processed, and obtain the numerical value of modulating-coding type MCS in the SIG fields；
The transmission mode that the basis wherein first indicates to identify the frame is single user or multi-user, according to wherein second
It is individual to indicate that the transmission mode for identifying the frame is open loop or beam forming, including：
According to the modulation system, the transmission mode for determining the frame is open loop or beam forming, when the numerical value of the MCS is referring to
When in fixed scope, the transmission mode for determining the frame is single user, when the numerical value of the MCS is outside specified scope, really
The transmission mode of the fixed frame is multi-user.
4. method according to claim 3, it is characterised in that the transmission mode also includes 1MHz bandwidth modes；
Described two four kinds of states indicated after combination are respectively used to indicate 1MHz bandwidth modes, described mono- more than or equal to 2MHz
User's open loop mode, more than or equal to 2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes.
5. it is a kind of to send end device, it is characterised in that to include：
First acquisition unit, for obtaining transmission mode, the transmission mode include more than or equal to 2MHz single user open loop modes,
More than or equal to 2MHz single users beamformed mode or more than or equal to 2MHz multi-user modes；
Encapsulation unit, it is described for data to be sent to be encapsulated into framing according to the transmission mode that the first acquisition unit is obtained
Frame it is leading in comprising for identifying two of transmission mode instructions, it is described two to indicate for making receiving terminal according to wherein
First transmission mode for indicating to identify the frame is single user or multi-user, and according to wherein second instruction institute is identified
The transmission mode for stating frame is open loop or beam forming, wherein, the frame it is leading in comprising opening more than or equal to 2MHz single users
The information of ring mode indicates SIG fields or more than or equal to 2MHz beamformed modes and the SIGA fields of multi-user mode；
Transmitting element, for according to the transmission mode, to receiving terminal the frame of the encapsulation unit encapsulation being sent；
The encapsulation unit, specifically for determining the leading of the frame, by an OFDM in the leading SIG fields of the frame
, used as first instruction, the modulation system of another part carrier wave is used as second finger for the modulation system of the portion of carriers of symbol
Show；Wherein, when the transmission mode that the modulation system of the portion of carriers is used to indicate the frame is single user or multi-user,
The transmission mode that the modulation system of another part carrier wave is used to indicate the frame is open loop or beam forming, or when described
When the transmission mode that the modulation system of portion of carriers is used to indicate the frame is open loop or beam forming, described another part is carried
The transmission mode that wave modulation mode is used to indicate the frame is single user or multi-user；
Or, the encapsulation unit, specifically for determining the leading of the frame, by the in the leading SIG fields of the frame
The modulation system of the carrier wave of one OFDM symbol is used as first instruction, the modulation system conduct of the carrier wave of second OFDM symbol
Second instruction；Wherein, when the modulation system of the carrier wave of first OFDM symbol is used to indicate the transmission mode of the frame
For single user or multi-user when, the modulation system of the carrier wave of second OFDM symbol is used to indicate the transmission mode of the frame
For open loop or beam forming, or when the modulation system of the carrier wave of first OFDM symbol is used to indicate the transmission of the frame
When pattern is open loop or beam forming, the modulation system of the carrier wave of second OFDM symbol is used to indicate the transmission of the frame
Pattern is single user or multi-user；
Or, the encapsulation unit, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of individual OFDM symbol as first instruction, and using in the SIG fields arrange indication bit as
Second instruction；Wherein, when the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is alone
When family or multi-user, the indication bit is used to indicating that the transmission mode of the frame to be open loop or beam forming, or, when described
The transmission mode that the modulation system of the carrier wave of OFDM symbol is used to indicate the frame is open loop or beam forming, the indication bit
For indicating that the transmission mode of the frame is single user or multi-user；
Or, the encapsulation unit, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of individual OFDM symbol will arrange the numerical value of GID as the as first instruction in the SIG fields
Two instructions；Wherein, the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is open loop or ripple
Beam forming, the transmission mode that specific GID numerical value is used to indicate the frame is single user, by other outside special value
The transmission mode that GID numerical value is used to indicate the frame is multi-user；
Or, the encapsulation unit, specifically for determining the leading of the frame, by the leading SIG fields of the frame
The modulation system of the carrier wave of individual OFDM symbol will arrange the numerical value of MCS as the as first instruction in the SIG fields
Two instructions；Wherein, the transmission mode that the modulation system of the carrier wave of the OFDM symbol is used to indicate the frame is open loop or ripple
Beam forming, the transmission mode that the numerical value of the MCS in specified scope is used to indicate the frame is single user, in specified scope
The transmission mode that the numerical value of outer MCS is used to indicate the frame is multi-user.
6. a kind of receiving end device, it is characterised in that include：
Receiving unit, for the frame that receiving end/sending end sends, the frame it is leading in comprising for two of identification transmission pattern
Indicate；
Second acquisition unit, for obtain the frame that the receiving unit is received it is leading in described two instructions, wherein, institute
State frame it is leading in indicate SIG fields or more than or equal to 2MHz wave beams comprising the information more than or equal to 2MHz single user open loop modes
The SIGA fields of molding pattern and multi-user mode；
Recognition unit, wherein first for being obtained according to the second acquisition unit indicates the transmission mould for identifying the frame
Formula is single user or multi-user, according to wherein second that the second acquisition unit the is obtained transmission for indicating to identify the frame
Pattern is open loop or beam forming, wherein, the transmission mode includes more than or equal to 2MHz single user open loop modes, is more than or equal to
2MHz single users beamformed mode and more than or equal to 2MHz multi-user modes；
The second acquisition unit, specifically for by the Energy distribution of detection frame, the leading information for obtaining the frame is indicated
The modulation system of two parts carrier wave of an orthogonal frequency division multiplex OFDM symbol in SIG fields；
The recognition unit, the modulation system of a portion carrier wave specifically for being obtained according to the second acquisition unit,
The transmission mode for determining the frame is single user or multi-user, according to the modulation system of wherein another part carrier wave, it is determined that described
The transmission mode of frame is open loop or beam forming；
Or, the second acquisition unit, specifically for by the Energy distribution of detection frame, obtaining the leading SIG of the frame
The modulation system of the modulation system of the carrier wave of first OFDM symbol in field and the carrier wave of second OFDM symbol；
The recognition unit, the tune of the carrier wave of one of OFDM symbol specifically for being obtained according to the second acquisition unit
Mode processed, the transmission mode for determining the frame is single user or multi-user, according to the tune of the carrier wave of other in which OFDM symbol
Mode processed, the transmission mode for determining the frame is open loop or beam forming；
Or, the second acquisition unit, specifically for by the Energy distribution of detection frame, obtaining the leading SIG of the frame
The modulation system of the carrier wave of an OFDM symbol in field, and obtain the indication bit in the SIG fields；
The recognition unit, specifically for the modulation system obtained according to the second acquisition unit, determines the frame
Transmission mode is single user or multi-user, according to the indication bit, the transmission mode for determining the frame be open loop or wave beam into
Type, or, according to the modulation system, the transmission mode for determining the frame is open loop or beam forming, and according to described ratio is indicated
Spy, the transmission mode for determining the frame is single user or multi-user；
Or, the second acquisition unit, specifically for by the Energy distribution of detection frame, obtaining the leading SIG of the frame
The modulation system of the carrier wave of an OFDM symbol in field, and obtain the numerical value of group mark GID in the SIG fields；
The recognition unit, specifically for the modulation system obtained according to the second acquisition unit, determines the frame
Transmission mode is open loop or beam forming, and when the numerical value of the GID is equal to special value, the transmission mode for determining the frame is
Single user, when the numerical value of the GID is not equal to special value, the transmission mode for determining the frame is multi-user；
Or, the second acquisition unit, specifically for by the Energy distribution of detection frame, obtaining the leading SIG of the frame
The modulation system of the carrier wave of an OFDM symbol in field, and obtain the number of modulating-coding type MCS in the SIG fields
Value；
The recognition unit, specifically for the modulation system obtained according to the second acquisition unit, determines the frame
Transmission mode is open loop or beam forming, when the numerical value of the MCS is in specified scope, determines the transmission mode of the frame
For single user, when the numerical value of the MCS is outside specified scope, the transmission mode for determining the frame is multi-user.
7. it is a kind of determine communication transmission mode system, it is characterised in that include：Send end device and receiving end device；
The end device that sends is the device described in the claims 5；
The receiving end device is the device described in the claims 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121419.3A CN103379544B (en) | 2012-04-23 | 2012-04-23 | Method, device and system for determining communication transmission mode |
| PCT/CN2012/087811 WO2013159553A1 (en) | 2012-04-23 | 2012-12-28 | Method, apparatus, and system for determining communication transmission mode |
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| CN201210121419.3A CN103379544B (en) | 2012-04-23 | 2012-04-23 | Method, device and system for determining communication transmission mode |
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| CN103379544A CN103379544A (en) | 2013-10-30 |
| CN103379544B true CN103379544B (en) | 2017-04-12 |
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| WO (1) | WO2013159553A1 (en) |
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| EP3099102B1 (en) | 2014-02-24 | 2020-01-08 | Huawei Technologies Co., Ltd. | Method and apparatus for receiving and sending information |
| WO2016187854A1 (en) * | 2015-05-27 | 2016-12-01 | 华为技术有限公司 | Communication method, access point and station |
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| US7860036B2 (en) * | 2007-09-10 | 2010-12-28 | Qualcomm Incorporated | Methods and apparatus for including mode information in a frame for system acquisition |
| EP2420023B1 (en) * | 2009-04-13 | 2014-08-27 | Marvell World Trade Ltd. | Physical layer frame format for WLAN |
| US9503931B2 (en) * | 2009-08-12 | 2016-11-22 | Qualcomm Incorporated | Enhancements to the MU-MIMO VHT preamble to enable mode detection |
| US9860037B2 (en) * | 2010-07-21 | 2018-01-02 | Qualcomm, Incorporated | Method and apparatus for ordering sub-fields of VHT-SIG-A and VIT-SIG-B fields |
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| Publication number | Publication date |
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| CN103379544A (en) | 2013-10-30 |
| WO2013159553A1 (en) | 2013-10-31 |
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