CN107409432A

CN107409432A - Transmit method, receiving device and the sending ending equipment of data

Info

Publication number: CN107409432A
Application number: CN201580078596.XA
Authority: CN
Inventors: 颜敏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-05-13
Filing date: 2015-05-13
Publication date: 2017-11-28
Anticipated expiration: 2035-05-13
Also published as: CN107409432B; WO2016179807A1

Abstract

The embodiments of the invention provide a kind of method, receiving device and sending ending equipment for transmitting data, applied in the WLAN WLAN of 60GHz frequency ranges, this method includes：Receive physical layer protocol data unit PPDU, PPDU includes short training field, PPDU standard is the first standard or the second standard, wherein, when PPDU standard is the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence a, or, when PPDU standard is the second standard, short training field sequentially includes Golay sequence a, 16 Golay sequence a and 1 Golay sequence a；Short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results；The PPDU that PPDU is the first standard or the second standard is determined according to cross correlation results.The embodiment of the present invention can determine the standard of physical frame according to cross correlation results, realize the automatic identification of standard.

Description

Transmit method, receiving device and the sending ending equipment of data

Technical field

The present embodiments relate to fields of communication technology, and more particularly, to the method receiving device and sending ending equipment of transmission data.

Background technique

802.11 series standards are to the standardization of Wireless LAN (Wireless Local Area Networks, WLAN) so that the cost of WLAN technology substantially reduces.Wireless Fidelity (Wireless Fidelity, Wi-Fi) be a Wi-Fi communication technology brand, held by Wi-Fi Alliance, purpose is the intercommunity improved between the radio network product based on 802.11 standards, is properly termed as Wi-Fi network using the WLAN of 802.11 serial protocols.

Currently, the version of 802.11 standards evolves to 802.11g, 802.11n, 802.11ac etc. from 802.11a/b.Backwards compatibility between product and interoperability in order to guarantee different 802.11 Standard Editions define mixed format (Mixed Format, MF) lead code (hereinafter referred to as lead code) since 802.11n.The legacy fields part of lead code is identical as the preamble field of 802.11a, all includes Legacy Short Training Field, traditional long training field and legacy signaling field.Lead code after 802.11n further includes non-traditional field portions other than legacy fields part, specifically includes non-traditional signaling field, non-traditional short training field and non-traditional long training field etc..Wherein for the non-traditional field portions of 802.11n with high-throughput (High Throughput, HT) name, i.e., non-traditional field portions include high-throughput signaling field, high-throughput short training field and high-throughput long training field.The non-traditional field portions of 802.11ac are with very high-throughput (Very High Throughput, VHT it) names, i.e. non-traditional field portions include, very high-throughput signaling field A, very high-throughput short training field, very high-throughput long training field and very high-throughput signaling field B.In several versions of existing 802.11 standard, such as 802.11a/b, 802.11g, 802.11n and 802.11ac, the differentiation of diversity of protocol versions and the automatic detection of receiving end can be realized by the modulation system of the symbol after lead code legacy fields.

And in existing 60GHz high frequency Wi-Fi, existing standard is mainly 802.11ad.The flank speed that the standard is supported at present is 6.7Gbps, in order to meet higher rate requirement, needs to introduce new technology and standard: next-generation 60GHz frequency range (Next Generation 60G frequency band, NG60) standard.The introduction of new standard, while needing to meet backwards compatibility and interoperability, therefore, in NG60 agreement, how to distinguish NG60 frame (alternatively referred to as physical frame, physical layer packet or physical layer Protocol Data Unit (Presentation Protocol Data Unit, PPDU)) and 802.11ad frame become urgent problem to be solved.

Summary of the invention

The embodiment of the invention provides a kind of method, receiving device and sending ending equipment for transmitting data, this method can distinguish NG60 frame and 802.11ad frame.

First aspect, provide a kind of method for transmitting data, applied in the WLAN WLAN of 60GHz frequency range, it include: to receive physical layer protocol data unit PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, the short training field sequentially includes 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of the PPDU is second standard；The short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results；Determine that the PPDU is first standard or the PPDU of second standard according to the cross correlation results.

With reference to first aspect, in the first implementation, this determines that the PPDU is first standard or the PPDU of second standard according to the cross correlation results, it include: that there are when negative peak before thick sync bit for the real part of the signal after the cross correlation results include cross-correlation, determine that the PPDU is the PPDU of second standard, alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part of the signal after the cross correlation results include cross-correlation before thick sync bit.

In conjunction with the first possible implementation, in the second implementation, when the PPDU is the PPDU of second standard, the result of the cross-correlation further includes that there are the second negative peak, this method after thick sync bit for the real part of the signal after cross-correlation further include: the synchronization of the PPDU is carried out according to second negative peak.

With reference to first aspect, the first to second can with implementation in any possible implementation, in the third possible implementation, first standard be 802.11ad, second standard be next generation 60GHz frequency range NG60 standard.

Second aspect, provide a kind of method for transmitting data, applied in the WLAN WLAN of 60GHz frequency range, it include: to receive PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；By the Short Training Field and default Golay sequence carry out cross-correlation, obtain cross correlation results；Determine that the PPDU is first standard or the PPDU of second standard according to the cross correlation results.

In conjunction with second aspect, in the first implementation, this determines that the PPDU is first standard or the PPDU of second standard according to the cross correlation results, it include: that there are when negative peak before thick sync bit for the real part of the signal after the cross correlation results include cross-correlation, determine that the PPDU is the PPDU of second standard, alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part of the signal after the cross correlation results include cross-correlation before thick sync bit.

In conjunction with the first possible implementation of second aspect, in the second implementation, when the PPDU is the PPDU of second standard, the result of the cross-correlation further includes that there are the second negative peak, this method after thick sync bit for the real part of the signal after cross-correlation further include: the synchronization of the PPDU is carried out according to second negative peak.

In conjunction with second aspect, second aspect the first to second can with implementation in any possible implementation, in the third possible implementation, first standard be 802.11ad, second standard be next generation 60GHz frequency range NG60 standard.

The third aspect, provide a kind of method for transmitting data, applied in the WLAN WLAN of 60GHz frequency range, it include: to generate PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, the short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of the PPDU is second standard；Send the PPDU.

In conjunction with the third aspect, in the first implementation, which is 802.11ad, which is NG60 standard.

Fourth aspect, provide a kind of method for transmitting data, applied in the WLAN WLAN of 60GHz frequency range, it include: to generate PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；Send the PPDU.

In conjunction with fourth aspect, in the first implementation, which is 802.11ad, which is NG60 standard.

5th aspect, provides a kind of receiving device, the WLAN applied to 60GHz frequency range In WLAN, it include: receiving unit, for receiving PPDU, which includes short training field, and the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, which sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, which sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；Cross-correlation unit obtains cross correlation results for the short training field and default Golay sequence to be carried out cross-correlation；Determination unit, for determining that the PPDU is first standard or the PPDU of second standard according to the cross correlation results.

In conjunction with the first possible implementation of the 5th aspect, in the second implementation, the determination unit is specifically used for the real part of signal after the cross correlation results include cross-correlation, and there are when negative peak before thick sync bit, determine that the PPDU is the PPDU of second standard, or, when negative peak is not present in the real part that the determination unit is specifically used for the signal after the cross correlation results include cross-correlation before thick sync bit, determine that the PPDU is the PPDU of first standard.

In conjunction with the first possible implementation of the 5th aspect, in the second implementation, when the PPDU is the PPDU of second standard, the result of the cross-correlation further includes that there are the second negative peaks after thick sync bit for the real part of the signal after cross-correlation, the receiving device further include: synchronization unit, for carrying out the synchronization of the PPDU according to second negative peak.

In conjunction with the 5th aspect, the 5th aspect the first to second can with implementation in any possible implementation, in the third possible implementation, first standard be 802.11ad, second standard be next generation 60GHz frequency range NG60 standard.

6th aspect, provide a kind of receiving device, applied in the WLAN WLAN of 60GHz frequency range, it include: receiving unit, for receiving PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；Cross-correlation unit obtains cross correlation results for the short training field and default Golay sequence to be carried out cross-correlation；Determination unit, for determining that the PPDU is first standard or the PPDU of second standard according to the cross correlation results.

In conjunction with the first possible implementation of the 6th aspect, in the second implementation, the determination unit is specifically used for the real part of signal after the cross correlation results include cross-correlation, and there are when negative peak before thick sync bit, determine that the PPDU is the PPDU of second standard, alternatively, the determination unit is specific When negative peak is not present in real part for the signal after the cross correlation results include cross-correlation before thick sync bit, determine that the PPDU is the PPDU of first standard.

In conjunction with the first possible implementation of the 6th aspect, in the second implementation, when the PPDU is the PPDU of second standard, the result of the cross-correlation further includes that there are the second negative peaks after thick sync bit for the real part of the signal after cross-correlation, the receiving device further include: synchronization unit, for carrying out the synchronization of the PPDU according to second negative peak.

In conjunction with the 6th aspect, the 6th aspect the first to second can with implementation in any possible implementation, in the third possible implementation, first standard be 802.11ad, second standard be next generation 60GHz frequency range NG60 standard.

7th aspect, provide a kind of sending ending equipment, applied in the WLAN WLAN of 60GHz frequency range, it include: generation unit, for generating PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, which sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, which sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；Transmission unit, for sending the PPDU.

In conjunction with the 7th aspect, in the first implementation, which is 802.11ad, which is NG60 standard.

Eighth aspect, provide a kind of sending ending equipment, applied in the WLAN WLAN of 60GHz frequency range, it include: generation unit, for generating PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；Transmission unit, for sending the PPDU.

In conjunction with eighth aspect, in the first implementation, which is 802.11ad, which is NG60 standard.

Based on the above-mentioned technical proposal, the embodiment of the present invention obtains cross correlation results by the way that the short training field and default Golay sequence are carried out cross-correlation；And determine that the PPDU is the PPDU of first standard (such as 802.11ad) or second standard (such as NG60) according to cross correlation results.The embodiment of the present invention can determine the standard of the PPDU according to cross correlation results, realize identification NG60 frame and 802.11ad frame.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, attached drawing needed in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of a scenario of the applicable transmission data of the embodiment of the present invention.

Fig. 2 is the schematic flow chart of the method for transmission data according to an embodiment of the invention.

Fig. 3 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.

Fig. 4 is the schematic block diagram of the PPDU of 802.11ad standard according to an embodiment of the invention.

Fig. 5 is the schematic block diagram of short training field according to an embodiment of the invention.

Fig. 6 is the schematic block diagram of short training field according to an embodiment of the invention.

Fig. 7 is the schematic block diagram of the signal after relevant operation according to an embodiment of the invention.

Fig. 8 is the schematic block diagram of the signal after relevant operation according to another embodiment of the present invention.

Fig. 9 is the schematic block diagram of the signal after relevant operation according to another embodiment of the present invention.

Figure 10 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.

Figure 11 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.

Figure 12 is the schematic block diagram of receiving device according to an embodiment of the invention.

Figure 13 is the schematic block diagram of sending ending equipment according to an embodiment of the invention.

Figure 14 is the schematic block diagram of receiving device according to another embodiment of the present invention.

Figure 15 is the schematic block diagram of sending ending equipment according to another embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained without making creative work, all should belong to the scope of protection of the invention.

Technical solution of the present invention can be applied in orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) system, such as, wlan system, especially Wireless Fidelity (Wireless Fidelity, WiFi) etc.；Technical method of the invention can also be applied in single carrier (Single Carrier, SC) system.Certainly, the method for the embodiment of the present invention can also apply other classes In the ofdm system of type, this is not restricted for the embodiment of the present invention.

It is corresponding, sending ending equipment and receiving device can be user site (Station in WLAN, STA), the user site is referred to as system, subscriber unit, access terminal, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent, user apparatus or user equipment (User Equipment, UE).The STA can be cellular phone, wireless phone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL it) stands, personal digital assistant (Personal Digital Assistant, PDA), the handheld device with WLAN (such as Wi-Fi) communication function, calculate equipment or be connected to other processing equipments of radio modem.

In addition, sending ending equipment and receiving device are also possible to access point (AP in WLAN, Access Point), access point can be used for being communicated with access terminal by WLAN, and the data that the data of access terminal are transmitted to network side or automatic network in future side are transmitted to access terminal.

Receiving device can be Correspondent Node corresponding with sending ending equipment.

Hereinafter, in order to facilitate understanding and explanation, it is non-limiting as example, implementation procedure and movement of the method and apparatus of transmission data of the invention in Wi-Fi system are illustrated.

Fig. 1 is the schematic diagram of a scenario of the applicable transmission data of the embodiment of the present invention.Scene system as shown in Figure 1 can be wlan system, and the system of Fig. 1 includes one or more access point AP101 and one or more site STA 102, and Fig. 1 is by taking an access point and two websites as an example.It can be carried out wireless communication by various standards between access point 101 and website 102.Wherein, it can be carried out wireless communication using multi-user multiple input multiple output technology (Multi-User Multiple-Input Multiple-Output, MU-MIMO) between access point 101 and website 102.

Fig. 2 is the schematic flow chart of the method for transmission data according to an embodiment of the invention.Method shown in Fig. 2 is executed by receiving device, and receiving device can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Specifically, method as shown in Figure 2 is applied in the WLAN WLAN of 60GHz frequency range, comprising:

210, receive physical layer protocol data unit PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 16 Golay sequence a (Ga128) and 1 Golay sequence-a (- Ga128), alternatively, short training field sequentially includes 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of PPDU is the second standard；

220, short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results.

230, determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.

Therefore, the embodiment of the present invention obtains cross correlation results by the way that short training field and default Golay sequence are carried out cross-correlation；And determine that PPDU is the PPDU of the first standard (such as 802.11ad) or the second standard (such as NG60) according to cross correlation results.The embodiment of the present invention can determine the standard of PPDU according to cross correlation results, realize identification NG60 frame and 802.11ad frame.

Specifically, in the WLAN WLAN of 60GHz frequency range, in order to distinguish the PPDU of the first standard and the PPDU of the second standard, the embodiment of the present invention is according to the difference of the short training field of two protocol versions, specifically, when PPDU is single carrier or multi-carrier transmission, short training field in the PPDU of second standard than the first standard short training field more than a Golay sequence-a, further, the embodiment of the present invention carries out the result of cross-correlation according to the short training field of PPDU and default Golay sequence to determine that PPDU is the PPDU of the first standard or the second standard, it is able to solve the problem of prior art is difficult to distinguish the PPDU of the first standard and the second standard.

It should also be understood that default Gray (golay) sequence is referred to as local Golay sequence, it can be the known array set in advance in receiving end.Default Golay sequence can be a Golay sequence a.

Fig. 3 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.Method shown in Fig. 3 is executed by receiving device, and receiving device can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Specifically, method as shown in Figure 3 is applied in the WLAN WLAN of 60GHz frequency range, comprising:

310, receive PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b (Gb128), 1 Golay sequence-b (- Gb128) and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a when the standard of PPDU is the second standard；

320, short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results.

330, determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.

Specifically, in the WLAN WLAN of 60GHz frequency range, in order to distinguish the PPDU of the first standard and the PPDU of the second standard, the embodiment of the present invention is according to the difference of the short training field of two protocol versions, specifically, when PPDU is control physical layer (PHY) transmission, short training field in the PPDU of second standard than the first standard short training field more than 1 Golay sequence-b, further, the embodiment of the present invention carries out the result of cross-correlation according to the short training field of PPDU and default Golay sequence to determine that PPDU is the PPDU of the first standard or the second standard, it is able to solve the problem of prior art is difficult to distinguish the PPDU of the first standard and the second standard.

It should also be understood that default Golay sequence is referred to as local Golay sequence, it can be the known array set in advance in receiving end.Default Golay sequence can be a Golay sequence b.

It should be understood that, the difference of Fig. 2 and Fig. 3 embodiment is: the PPDU when PPDU in Fig. 2 embodiment is applied to single carrier or multi-carrier transmission, PPDU when PPDU in Fig. 3 embodiment is applied to control physical layer transmission, under same standard, the short training field of the two is different, but short training field and default Golay sequence are similarly carried out cross-correlation by two embodiments of Fig. 2 and Fig. 3, obtain cross correlation results；And determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.Therefore, it is hereinafter described in detail based on the implementation of Fig. 2, the correlation method process of Fig. 3 embodiment can be found in the corresponding contents of the embodiment of Fig. 2, be described in detail to avoid repeating appropriate omit.

Optionally, as another embodiment, the first standard is 802.11ad, and the second standard is next generation 60GHz frequency range NG60 standard.

For example, Fig. 4 is the PPDU schematic diagram of 802.11ad standard according to an embodiment of the invention.PPDU shown in Fig. 4 includes: short training field (Short Training Field, STF), channel estimation field (Channel Estimation, CE), indication signal field (Header), data field (data), automatic growth control field (Auto Gain Control, AGC) and adjust field (TRN-R/T) etc., wherein, STF is used to synchronize, offset estimation, AGC are adjusted；CE is used to carry out channel estimation；Indication signal field is used to indicate indication signal, such as can be used to indicate that the modulation system etc. of the data frame；AGC indicates automatic growth control；TRN-R/T indicates accurately to adjust reception or transmitting terminal wave beam.

In embodiments of the present invention, in order to carry out the difference of different PPDU (802.11ad frame and NG60 frame) while consider compatibility, the Golay sequence at end is repeated once by the front end STF of existing frame structure in 11ad, constitutes the STF structure of NG60 frame in this way.

For example, as shown in figure 5, the short training field short training field of the PPDU of the first standard (8021.11ad) may include 16 Golay sequence a when PPDU is single carrier or multi-carrier transmission With 1 Golay sequence-a, the short training field short training field of the PPDU of the second standard (NG60) may include 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a.

As shown in Figure 6, it is control physical layer (PHY) transmission in PPDU, the short training field of the PPDU of first standard (8021.11ad) may include 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, and the short training field short training field of the PPDU of the second standard (NG60) may include 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；

It should be understood that, STF sequence can be used for synchronizing the work with AGC adjustment, it is synchronized using STF, mainly using relevant operation, including auto-correlation and cross-correlation operation, the signal of relevant operation is as shown in Figure 7, wherein, dotted line indicates the signal amplitude figure after auto-correlation in Fig. 7, can be used to slightly be synchronized, solid line indicates and local Golay sequence carries out the signal amplitude figure after cross-correlation operation, carries out smart synchronization with negative peak therein.

It should be noted that default Golay sequence can be Ga128 when PPDU is single carrier or multi-carrier transmission, when PPDU is control physical layer transmission, default Golay sequence can be Gb128.

Optionally, as another embodiment, in 230, when there are when negative peak, determine that PPDU is the PPDU of the second standard before thick sync bit for the real part of the signal after cross correlation results include cross-correlation；Alternatively, determining that PPDU is the PPDU of the first standard when negative peak is not present before thick sync bit in the real part of the signal after cross correlation results include cross-correlation.

For example, as shown in fig. 7, negative peak is not present in cross correlation results before thick sync bit, it is possible to determine that signal amplitude figure shown in Fig. 7 corresponds to 802.11ad frame.

Optionally, as another embodiment, when PPDU is the PPDU of the second standard, the result of cross-correlation further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

Present invention method further include: the synchronization of PPDU is carried out according to the second negative peak.

According to embodiments of the present invention, first negative peak carries out the judgement (whether negative peak occur before judging thick sync bit) of frame type, and second negative peak carries out frame synchronization operation.Simultaneously because than in 802.11ad frame, more negative Golay sequences so that statistic increases and then improve the precision of AGC in NG60 frame.

Specifically, in additive white Gaussian noise (Additive White Gaussian Noise, AWGN) respectively in high and low signal-to-noise ratio (Signal Noise Ratio under channel, when SNR), the signal for carrying out generation when cross-correlation operation is as shown in Figure 8 and Figure 9, Fig. 8 shows be high SNR the case where signal real part schematic diagram, Fig. 9 indicate low SNR the case where signal real part schematic diagram.Wherein the dotted line in Fig. 8 indicates that the signal real part after auto-correlation, solid line indicate and the letter after the golay sequence cross-correlation of local Number real part.From Fig. 8 and Fig. 9, regardless of in low SNR or high SNR, occur two negative peaks in cross-correlated signal, respectively the first negative peak and the second negative peak, wherein, the first negative peak (negative peak occurred before thick sync bit) can be used in the embodiment of the present invention) judgement of Lai Jinhang frame type, it can specifically determine that PPDU is NG60 frame when there are the first negative peak, can determine that PPDU is 802.11ad frame when the first negative peak is not present；Second negative peak carries out frame synchronization operation.Due to a negative Golay sequences more multiple than 802.11ad frame in NG60 frame, it not only will not influence the adjustment of normal AGC, further, the precision of AGC improved because of the increase of Golay sequence statistic.By there is the first negative peak in Fig. 8 and Fig. 9, it is possible to determine that Fig. 8 and signal shown in Fig. 9 correspond to NG60 frame.

Above, the method for the transmission data of the embodiment of the present invention is described from the angle of receiving device in conjunction with Fig. 1 to Fig. 9, describes the method for the transmission data of the embodiment of the present invention from the angle of sending ending equipment below in conjunction with Figure 10 and Figure 11.

Specifically, Figure 10 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.Method shown in Fig. 10 is executed by sending ending equipment, and sending ending equipment can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Specifically, method as shown in Figure 10 is applied in the WLAN WLAN of 60GHz frequency range, comprising:

1010, generate PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of PPDU is the second standard；

1020, send PPDU.

In other words, PPDU is sent to receiving device, so that receiving device determines according to short training field the standard of PPDU.

Therefore, the embodiment of the present invention is by generating PPDU, and sends receiving device for PPDU, So that short training field and default Golay sequence are carried out cross-correlation by receiving device, cross correlation results are obtained；And determine that PPDU is the PPDU of the first standard (such as 802.11ad) or the second standard (such as NG60) according to cross correlation results.The embodiment of the present invention can determine the standard of PPDU according to cross correlation results, realize identification NG60 frame and 802.11ad frame.

Figure 11 is the schematic flow chart of the method for transmission data according to another embodiment of the present invention.Method shown in Figure 11 is executed by sending ending equipment, and sending ending equipment can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Specifically, method as shown in figure 11 is applied in the WLAN WLAN of 60GHz frequency range, comprising:

1110, generate PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a when the standard of PPDU is the second standard；

1120, send PPDU.

Therefore, the embodiment of the present invention is by generating PPDU, and sends receiving device for PPDU, so that short training field and default Golay sequence are carried out cross-correlation by receiving device, obtains cross correlation results；And determine that PPDU is the PPDU of the first standard (such as 802.11ad) or the second standard (such as NG60) according to cross correlation results.The embodiment of the present invention can determine the standard of PPDU according to cross correlation results, realize identification NG60 frame and 802.11ad frame.

It should be understood that, the difference of Figure 10 and Figure 11 embodiment is: the PPDU when PPDU in Figure 10 embodiment is applied to single carrier or multi-carrier transmission, PPDU when PPDU in Figure 11 embodiment is applied to control physical layer transmission, under same standard, the short training field of the two is different, but two embodiments of Figure 10 and Figure 11 similarly send PPDU, in order to which short training field and default Golay sequence are carried out cross-correlation by receiving end, obtain cross correlation results；And determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.Therefore, it is hereinafter described in detail based on the implementation of Figure 10, the correlation method process of Figure 11 embodiment can be found in the corresponding contents of the embodiment of Figure 10, be described in detail to avoid repeating appropriate omit.

It should be noted that, embodiment shown in Fig. 10 is corresponding with embodiment shown in Fig. 2, the difference of embodiment shown in the two is, sending ending equipment shown in Figure 10 is the opposite equip. of Fig. 2 receiving device, the exchange process of sending ending equipment and receiving device can refer to embodiment shown in Fig. 2 in Figure 10, and details are not described herein again.

It should also be noted that, embodiment shown in Figure 11 is corresponding with embodiment shown in Fig. 3, the difference of embodiment shown in the two is, sending ending equipment shown in Figure 11 is the opposite equip. of Fig. 3 receiving device, the exchange process of sending ending equipment and receiving device can refer to embodiment shown in Fig. 3 in Figure 11, and details are not described herein again.

Above, the method for the transmission data of the embodiment of the present invention is described in conjunction with Fig. 1 to Figure 11, and the equipment of the transmission data of the embodiment of the present invention is described below in conjunction with Figure 12 to Figure 15.

Figure 12 is the schematic block diagram of receiving device according to an embodiment of the invention.Applied in the WLAN WLAN of 60GHz frequency range, receiving device can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Receiving device 1200 as shown in figure 12 includes: receiving unit 1210, cross-correlation unit 1220 and determination unit 1230.

It should be understood that, receiving device 1200 shown in Figure 12 can be realized each process of receiving device involved in embodiment of the method shown in Fig. 1 to Figure 11, the concrete function of receiving device 1200 shown in Figure 12 can refer to each process completed in Fig. 1 to 11 by receiving device, it is appropriate herein to omit detailed description to avoid repeating.

Specifically, when Figure 12 2 embodiment of corresponding diagram, receiving unit 1210 includes short training field for receiving PPDU, PPDU, and the standard of PPDU is the first standard or the second standard, wherein in PPDU Standard when being the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of PPDU is the second standard；

Cross-correlation unit 1220 is used to short training field and default Golay sequence carrying out cross-correlation, obtains cross correlation results；

Determination unit 1230 is used to determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.

When Figure 12 3 embodiment of corresponding diagram, receiving unit 1310 is for receiving PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a when the standard of PPDU is the second standard；

Optionally, as another embodiment, determination unit 1230 is specifically used for when the real part of the signal after cross correlation results include cross-correlation before thick sync bit there are when negative peak, determining that PPDU is the PPDU of the second standard,

Alternatively, determining that PPDU is the PPDU of the first standard when determination unit 1230 is specifically used for that negative peak is not present before thick sync bit when the real part of the signal after cross correlation results include cross-correlation.

Receiving device further include: synchronization unit, for carrying out the synchronization of PPDU according to the second negative peak.

Figure 13 is the schematic block diagram of sending ending equipment according to an embodiment of the invention.Applied in the WLAN WLAN of 60GHz frequency range, sending ending equipment can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Sending ending equipment 1300 includes: generation unit 1310 and transmission unit 1320 as shown in fig. 13 that.

It should be understood that, sending ending equipment 1300 shown in Figure 13 can be realized each process of sending ending equipment involved in embodiment of the method shown in Fig. 1 to Figure 11, the concrete function of receiving device 1300 shown in Figure 13 can refer to each process completed in Fig. 1 to 11 by sending ending equipment, it is appropriate herein to omit detailed description to avoid repeating.

Specifically, when Figure 13 10 embodiment of corresponding diagram, generation unit 1310 includes short training field for generating PPDU, PPDU, and the standard of PPDU is the first standard or the second standard, wherein, when the standard of PPDU is the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of PPDU is the second standard, short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；

Transmission unit 1320 is for sending PPDU.

When Figure 13 11 embodiment of corresponding diagram, generation unit 1310 is for generating PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a when the standard of PPDU is the second standard；

Transmission unit 1320 is for sending PPDU.

Therefore, the embodiment of the present invention is by generating PPDU, and sends receiving device for PPDU, so that short training field and default Golay sequence are carried out cross-correlation by receiving device, obtains cross-correlation knot Fruit；And determine that PPDU is the PPDU of the first standard (such as 802.11ad) or the second standard (such as NG60) according to cross correlation results.The embodiment of the present invention can determine the standard of PPDU according to cross correlation results, realize identification NG60 frame and 802.11ad frame.

Optionally, as another embodiment, the first standard is 802.11ad, and the second standard is NG60 standard.

Figure 14 is the schematic block diagram of receiving device according to another embodiment of the present invention.Applied in the WLAN WLAN of 60GHz frequency range, receiving device can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Receiving device 1400 as shown in figure 14 includes: processor 1410, memory 1420, bus system 1430 and transceiver 1440.

It should be understood that, receiving device 1400 shown in Figure 14 and receiving device shown in Figure 12 are to corresponding, it can be realized each process of receiving device involved in embodiment of the method shown in Fig. 1 to Figure 11, the concrete function of receiving device 1400 shown in Figure 14 can refer to each process completed in Fig. 1 to 11 by receiving device, it is appropriate herein to omit detailed description to avoid repeating.

Specifically, when Figure 14 2 embodiment of corresponding diagram, transceiver 1440 receives the PPDU that sending ending equipment is sent, and PPDU includes short training field, and the standard of PPDU is the first standard or the second standard, wherein, when the standard of PPDU is the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of PPDU is the second standard, short training field sequentially includes 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；Processor 1410 is used to call the code being stored in memory 1420 by bus system 1430, and short training field and default Golay sequence are carried out cross-correlation, obtain cross correlation results；Determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.

When Figure 14 3 embodiment of corresponding diagram, transceiver 1440 receives the PPDU that sending ending equipment is sent, the standard of PPDU is the first standard or the second standard, wherein, when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of PPDU is the second standard, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；Processor 1410 is for passing through Bus system 1430 calls the code being stored in memory 1420, and short training field and default Golay sequence are carried out cross-correlation, obtain cross correlation results；Determine that PPDU is the PPDU of the first standard or the second standard according to cross correlation results.

The method that the embodiments of the present invention disclose can be applied in processor 1410, or be realized by processor 1410.Processor 1410 may be a kind of IC chip, the processing capacity with signal.During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 1410 or the instruction of software form.Above-mentioned processor 1410 can be general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor and execute completion, or in decoding processor hardware and software module combination execute completion.Software module can be located at random access memory (Random Access Memory, RAM), in the storage medium of this fields maturation such as flash memory, read-only memory (Read-Only Memory, ROM), programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 1420, processor 1410 reads the information in memory 1420, the step of completing the above method in conjunction with its hardware, the bus system 1430 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 1430 in figure.

Optionally, as another embodiment, processor 1410 is specifically used for when the real part of the signal after cross correlation results include cross-correlation before thick sync bit there are when negative peak, determining that PPDU is the PPDU of the second standard,

Alternatively, determining that PPDU is the PPDU of the first standard when processor 1410 is specifically used for that negative peak is not present before thick sync bit when the real part of the signal after cross correlation results include cross-correlation.

Optionally, as another embodiment, when PPDU is the PPDU of the second standard, cross-correlation Result further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

Processor 1410 is also used to carry out the synchronization of PPDU according to the second negative peak.

Figure 15 is the schematic block diagram of sending ending equipment according to another embodiment of the present invention.Applied in the WLAN WLAN of 60GHz frequency range, sending ending equipment can be website or access point, and when sending ending equipment is access point, receiving device is website；When sending ending equipment is website, receiving device is access point.Sending ending equipment 1500 as shown in figure 15 includes: processor 1510, memory 1520, bus system 1530 and transceiver 1540.

It should be understood that, sending ending equipment 1500 shown in figure 15 and sending ending equipment shown in Figure 11 are to corresponding, it can be realized each process of sending ending equipment involved in embodiment of the method shown in Fig. 1 to Fig. 9, the concrete function of receiving device 1500 shown in figure 15 can refer to each process completed in Fig. 1 to 9 by sending ending equipment, it is appropriate herein to omit detailed description to avoid repeating.

Specifically, when Figure 15 10 embodiment of corresponding diagram, processor 1510 is used to call the code being stored in memory 1520 by bus system 1530, generate PPDU, PPDU includes short training field, the standard of PPDU is the first standard or the second standard, wherein, when the standard of PPDU is the first standard, short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of PPDU is the second standard；

Transceiver 1540 sends PPDU to receiving device, so that receiving device determines according to short training field the standard of PPDU.

When 11 embodiment example of Figure 15 corresponding diagram, processor 1510 is used to call the code being stored in memory 1520 by bus system 1530, generate PPDU, the standard of PPDU is the first standard or the second standard, wherein when the standard of PPDU is the first standard, short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, alternatively, short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 when the standard of PPDU is the second standard Golay sequence-b and 1 Golay sequence-a；

The method that the embodiments of the present invention disclose can be applied in processor 1510, or be realized by processor 1510.Processor 1510 may be a kind of IC chip, the processing capacity with signal.During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 1510 or the instruction of software form.Above-mentioned processor 1510 can be general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor and execute completion, or in decoding processor hardware and software module combination execute completion.Software module can be located at random access memory (Random Access Memory, RAM), in the storage medium of this fields maturation such as flash memory, read-only memory (Read-Only Memory, ROM), programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 1520, processor 1510 reads the information in memory 1520, the step of completing the above method in conjunction with its hardware, the bus system 1530 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 1530 in figure.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text means that a particular feature, structure, or characteristic related with embodiment is included at least one embodiment of the present invention.It therefore, " in one embodiment " that occurs everywhere in the whole instruction or " in one embodiment " may not Centainly refer to identical embodiment.In addition, these specific features, structure or characteristic can combine in any suitable manner in one or more embodiments.It should be understood that, in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, and the execution sequence of each process should be determined by its function and internal logic, and the implementation process of the embodiments of the invention shall not be constituted with any limitation.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

It should be understood that in embodiments of the present invention, " B corresponding with A " indicates that B is associated with A, B can be determined according to A.It is also to be understood that determining that B is not meant to determine B only according to A according to A, B can also be determined according to A and/or other information.

Those of ordinary skill in the art may be aware that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, it can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, each exemplary composition and step are generally described according to function in the above description.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, be also possible to electricity, the connection of mechanical or other forms.

Unit may or may not be physically separated as illustrated by the separation member, and component shown as a unit may or may not be physical unit, it can and it is in one place, or It may be distributed over multiple network units.It can select some or all of unit therein according to the actual needs to realize the purpose of the embodiment of the present invention.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, is also possible to two or more units and is integrated in one unit.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be realized with hardware realization or firmware realization or their combination mode.When implemented in software, above-mentioned function can be stored in computer-readable medium or as on computer-readable medium one or more instructions or code transmit.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to any medium of another place transmission computer program.Storage medium can be any usable medium that computer can access.As example but be not limited to: computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, magnetic disk storage medium or other magnetic storage apparatus or can be used in carry or store have instruction or data structure form desired program code and can be by any other medium of computer access.Furthermore.Any connection appropriate can become computer-readable medium.Such as, if software is to be transmitted using the wireless technology of coaxial cable, optical fiber cable, twisted pair, Digital Subscriber Line (DSL) either such as infrared ray, radio and microwave etc from website, server or other remote sources, the wireless technology of coaxial cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless and microwave etc includes in the fixing of affiliated medium.As used in the present invention, disk (Disk) and dish (disc) include compression optical disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical replicate data.Combination above should also be as including within the protection scope of computer-readable medium.

In short, being not intended to limit the scope of the present invention the foregoing is merely the preferred embodiment of technical solution of the present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims

A method of transmission data, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Receive physical layer protocol data unit PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；

The short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results；

Determine that the PPDU is the PPDU of first standard or second standard according to the cross correlation results.
The method according to claim 1, wherein

It is described to determine that the PPDU is the PPDU of first standard or second standard according to the cross correlation results, comprising:

The real part of signal after the cross correlation results include cross-correlation before thick sync bit there are when negative peak, determine the PPDU be second standard PPDU,

Alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part of the signal after the cross correlation results include cross-correlation before thick sync bit.
According to the method described in claim 2, it is characterized in that,

When the PPDU is the PPDU of second standard, the result of the cross-correlation further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

The method also includes: the synchronization of the PPDU is carried out according to second negative peak.
According to the method in any one of claims 1 to 3, which is characterized in that first standard is 802.11ad, and second standard is next generation 60GHz frequency range NG60 standard.
A method of transmission data, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, including

Receive PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；

The short training field and default Golay sequence are subjected to cross-correlation, obtain cross correlation results；

Determine that the PPDU is the PPDU of first standard or second standard according to the cross correlation results.
According to the method described in claim 5, it is characterized in that,

It is described to determine that the PPDU is the PPDU of first standard or second standard according to the cross correlation results, comprising:

The real part of signal after the cross correlation results include cross-correlation before thick sync bit there are when negative peak, determine the PPDU be second standard PPDU,

Alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part of the signal after the cross correlation results include cross-correlation before thick sync bit.
According to the method described in claim 6, it is characterized in that,

When the PPDU is the PPDU of second standard, the result of the cross-correlation further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

The method also includes: the synchronization of the PPDU is carried out according to second negative peak.
Method according to any one of claims 5 to 7, which is characterized in that first standard is 802.11ad, and second standard is next generation 60GHz frequency range NG60 standard.
A method of transmission data, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Generate PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a；

Send the PPDU.
According to the method described in claim 9, it is characterized in that,

First standard is 802.11ad, and second standard is NG60 standard.
A method of transmission data, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

PPDU is generated, the PPDU includes short training field, and the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or When the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；

Send the PPDU.
According to the method for claim 11, which is characterized in that

First standard is 802.11ad, and second standard is NG60 standard.
A kind of receiving device, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Receiving unit, for receiving PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, the short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of the PPDU is second standard；

Cross-correlation unit obtains cross correlation results for the short training field and default Golay sequence to be carried out cross-correlation；

Determination unit, for determining that the PPDU is the PPDU of first standard or second standard according to the cross correlation results.
Receiving device according to claim 13, which is characterized in that

The determination unit is specifically used for the real part of signal after the cross correlation results include cross-correlation before thick sync bit there are when negative peak, determining that the PPDU is the PPDU of second standard,

Alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part that the determination unit is specifically used for the signal after the cross correlation results include cross-correlation before thick sync bit.
Receiving device according to claim 14, which is characterized in that

When the PPDU is the PPDU of second standard, the result of the cross-correlation further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

The receiving device further include:

Synchronization unit, for carrying out the synchronization of the PPDU according to second negative peak.
Receiving device described in any one of 3 to 15 according to claim 1, which is characterized in that first standard is 802.11ad, and second standard is next generation 60GHz frequency range NG60 standard.
A kind of receiving device, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Receiving unit, for receiving PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；

Cross-correlation unit obtains cross correlation results for the short training field and default Golay sequence to be carried out cross-correlation；

Determination unit, for determining that the PPDU is the PPDU of first standard or second standard according to the cross correlation results.
Receiving device according to claim 17, which is characterized in that

The determination unit is specifically used for the real part of signal after the cross correlation results include cross-correlation before thick sync bit there are when negative peak, determining that the PPDU is the PPDU of second standard,

Alternatively, determining that the PPDU is the PPDU of first standard when negative peak is not present in the real part that the determination unit is specifically used for the signal after the cross correlation results include cross-correlation before thick sync bit.
Receiving device according to claim 18, which is characterized in that

When the PPDU is the PPDU of second standard, the result of the cross-correlation further include the signal after cross-correlation real part after thick sync bit there are the second negative peak,

The receiving device further include:

Synchronization unit, for carrying out the synchronization of the PPDU according to second negative peak.
Receiving device described in any one of 7 to 19 according to claim 1, which is characterized in that first standard is 802.11ad, and second standard is next generation 60GHz frequency range NG60 standard.
A kind of sending ending equipment, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Generation unit, for generating PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein when the standard of the PPDU is first standard, the short training field sequentially includes 16 Golay sequence a and 1 Golay sequence-a, alternatively, the short training field sequentially includes Golay sequence-a, 16 Golay sequence a and 1 Golay sequence-a when the standard of the PPDU is second standard；

Transmission unit, for sending the PPDU.
Sending ending equipment according to claim 21, which is characterized in that

First standard is 802.11ad, and second standard is NG60 standard.
A kind of sending ending equipment, which is characterized in that applied in the WLAN WLAN of 60GHz frequency range, comprising:

Generation unit, for generating PPDU, the PPDU includes short training field, the standard of the PPDU is the first standard or the second standard, wherein, when the standard of the PPDU is first standard, the short training field sequentially includes 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a, or, when the standard of the PPDU is second standard, the short training field sequentially includes 1 Golay sequence-b, 48 Golay sequence b, 1 Golay sequence-b and 1 Golay sequence-a；

Transmission unit, for sending the PPDU.
Sending ending equipment according to claim 23, which is characterized in that

First standard is 802.11ad, and second standard is NG60 standard.