CN102833858A

CN102833858A - Data communication device and data communication method

Info

Publication number: CN102833858A
Application number: CN2012103286270A
Authority: CN
Inventors: 董贤东; 马莉
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Priority date: 2012-09-06
Filing date: 2012-09-06
Publication date: 2012-12-19
Anticipated expiration: 2032-09-06
Also published as: CN102833858B

Abstract

The invention provides a data communication device and a data communication method. The data communication device comprises a data frame generation module and a data interaction module, wherein the data frame generation module is used for generating a data frame; the data frame comprises a data frame identification bit and a service information identification bit; a value of the data frame identification bit represents that the service information identification bit is contained in the data frame; a value of the service information identification bit represents relative information of a service; and the data interaction module is used for sending the data frame. By the data communication device and the data communication method which are disclosed by the invention, a STA (terminal) can record the service information in the data frame and simultaneously send out the service information in the process that the service is carried out, so that a receiving party can judge the service information contained in the data frame according to the data frame identification bit when receiving the data frame and the specific contents of the service information can be further analyzed; the data communication device and the data communication method are beneficial to rapid discovery of other potential users with the common service; a service discovery message or an equipment discovery message is also avoided being periodically sent; and the data communication device and the data communication method are beneficial for saving power for equipment.

Description

Data communication equipment and data communications method

Technical field

The present invention relates to moving communicating field, in particular to data communication equipment and data communications method.

Background technology

In WFA (Wi-Fi Alliance); Set up the new NAN of seminar (Neighbor Awareness Networking; Neighbours' sensing network), the content of its research is a social networks, mainly is that research has the professional STA (terminal) of same interest how to find each other; And this discovery procedure does not influence the communication of other STA and the network that other STA that same business is arranged can add ongoing communication, the process of finding the simultaneously each other power saving of will trying one's best.

In the NAN network, exist such demand, for example, to recreation: issue and subscription operation should continue to carry out on the backstage, to survey other potential players, even if under the situation that the games application between the user has started.

Because in existing Wi-Fi technology, channel is monopolized, when certain terminal in the NAN network when sending data, data can not be sent in other terminal in the NAN network.This be can't be above-mentioned demand.

Therefore; Need a kind of new technical scheme, can guarantee in the NAN network, in the process that STA commences business; Can the business information of self carrying out maybe will carrying out be sent; The recipient STA that receives business information can be commenced business by business information when needed, find oneself timely to guarantee potential service-user.

Summary of the invention

Technical problem to be solved by this invention is; A kind of new technical scheme is provided, can guarantees in the NAN network, in the process that STA commences business; Can the business information of self carrying out maybe will carrying out be sent; The recipient STA that receives business information can be commenced business by business information when needed, find oneself timely to guarantee potential service-user.

In view of this; The present invention provides a kind of data communication equipment; Comprise: the Frame generation module, generate Frame, comprise Frame flag and business information flag in the said Frame; Comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional; The data interaction module is sent said Frame.In this technical scheme; Data communication equipment is as the terminal, realizations such as signal receiving/transmission device that the data interaction module can be through the terminal and antenna, and the Frame generation module can be realized by the processing unit that terminal inner generates message; Through this technical scheme; STA can be in the process that business is carried out, and business information is recorded in the Frame also sends simultaneously, and the recipient can judge according to the Frame flag when receiving Frame and wherein comprise business information; And can further resolve the particular content of business information, help the discovery of potential service-user.

In technique scheme, preferably, said Frame flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme; The Frame flag is arranged on the frame head part, is because the data frame analyzing of recipient STA can begin from frame head, can confirm wherein whether to have comprised business information according to the value of flag; Continue to resolve and obtain business information; Do not have business information then directly to ignore Frame and get final product, avoided unnecessary parse operation, saved electric weight.

In technique scheme, preferably, said Frame flag comprises the one or more positions in the said frame head frame control domain partly.In this technical scheme; One in the FC territory of frame head part or multidigit are used for the Frame flag, can be illustrated in and have the business information flag in this Frame, the destination address that other STA resolves this Frame is not the data that send to oneself; Do not abandon this Frame up to having resolved the business information flag; See it whether is own interested business, if with the transmit leg of this Frame carry out related, if not abandoning this Frame.

In technique scheme, preferably, said Frame flag comprises the one or more positions in type subdomain and the subtype subdomain in the said frame control domain.In this technical scheme, according to present technology, in the type subdomain and subtype subdomain in the FC territory; Exist undefined reservation position; Utilize to keep the sign that the position can be carried out business information easily, here the value of type is 11, and the value of subtype is 0000; Representing that this Frame is the NAN Frame, can be the NAN Frame with this Frame of value representation that Type and Subtype are changed to other also.

In technique scheme, preferably, said Frame is neighbours' sensing network Frame, and the said Frame of the value representation of said Frame flag is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme, it is the NAN Frame that comprises business information that flag can more specifically identify Frame, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme, preferably, said business information flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme, business information also is recorded in the frame head part, can be so that the recipient need the parse for frame body portion; Just can parse required business information apace from the frame head part; Can the business information territory be added on the back of the source address field of Frame here, after STA has resolved destination address and source address, directly resolve the business information territory; And reduce parsing to other territory, help the STA power saving.

In technique scheme, preferably, said business information flag comprises one or more positions in the business information territory in the said frame head part.In this technical scheme, can utilize 48 bits in business information territory of frame head part, represent business information, also can represent business information for other bit length.

In technique scheme; Preferably; Said business information flag comprises type of service flag and professional details flag, the type of the said business of value representation of said type of service flag, the details of the said business of value representation of said professional details flag.In this technical scheme, business information physical record form is provided, through type information and the professional content of details two parts accurate recording.

In technique scheme, preferably, said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.In this technical scheme, owing to have 48 bits in the business information territory, so can it all be used for the record of business information, the mode that concrete dividing mode is not limited to write down in the such scheme.

In technique scheme, preferably, said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame part order 1 position or other position of said medium access control frame.In this technical scheme; Business information can be recorded in the form of information element in the frame, can be arranged in the position of frame order 1, after helping other STA like this and having resolved the business information element; See whether be own interested business; If not directly abandoning this frame, help the STA power saving, the business information element also can be recorded in other order position of frame part.

In technique scheme; Preferably; Said business information flag comprises type of service flag, length mark position and professional details flag; The type of the said business of value representation of said type of service flag, the length of the said professional details flag of said length mark bit representation, the details of the said business of value representation of said professional details flag.In this technical scheme, equally business information is divided into type information and details, simultaneously because the length of details is unfixed often, so also provide length information to represent the length of details.

In technique scheme, preferably, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.In this technical scheme, the length of type information, length information and details can be provided with according to the concrete needs of concrete business neatly.

In technique scheme, preferably, said business is a said data communication equipment business current or that carry out At All Other Times.In this technical scheme, can write down the information of current business in the Frame, also can write down the business that other times carry out; Give the recipient with notice, after other potential user resolves these data, just can know the current business that maybe will carry out like this; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

The present invention also provides a kind of data communications method; Comprise: generate Frame; Comprise Frame flag and business information flag in the said Frame; Comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional; Send said Frame.In this technical scheme; STA can be in the process that business is carried out; Business information is recorded in the Frame also sends simultaneously; The recipient can judge according to the Frame flag when receiving Frame and wherein comprise business information, and can further resolve the particular content of business information, helps the discovery of potential service-user.

In technique scheme, preferably, said business is the transmit leg of a said Frame business current or that carry out At All Other Times.In this technical scheme, can write down the information of current business in the Frame, also can write down the business that other times carry out; Give the recipient with notice, after other potential user resolves these data, just can know the current business that maybe will carry out like this; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

The present invention also provides a kind of data communication equipment, comprising: the data interaction module, and receiving data frames comprises Frame flag and business information flag in the said Frame; The business information determination module confirms to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirms professional relevant information according to the value of said business information flag.In this technical scheme; Data communication equipment is as the terminal, realizations such as signal receiving/transmission device that the data interaction module can be through the terminal and antenna, and the Frame generation module can be realized by the processing unit that terminal inner generates message; Through this technical scheme; Recipient's STA can judge according to the value of Frame flag and wherein to comprise business information when receiving Frame, and can further resolve the particular content of business information; And based on self judging whether to carry out this business, this scheme helps the discovery of potential service-user.

In technique scheme, preferably, said Frame flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme; The data frame analyzing of recipient STA can begin from frame head; Can confirm wherein whether comprised business information according to the value of flag, continue to resolve obtaining business information, if do not have business information then needn't the parse for frame body portion; Avoid unnecessary parse operation, saved electric weight.

In technique scheme, preferably, said Frame flag comprises the one or more positions in the said frame head frame control domain partly.In this technical scheme; One or multidigit in the FC territory of recipient's parse for frame head part just can be informed in and have the business information flag in this Frame, and the destination address that recipient STA resolves this Frame is not the data that send to oneself; Do not abandon this Frame up to having resolved the business information flag; See it whether is own interested business, if with the transmit leg of this Frame carry out related, if not abandoning this Frame.

In technique scheme, preferably, said Frame flag comprises the one or more positions in type subdomain and the subtype subdomain in the said frame control domain.In this technical scheme; The recipient is according to the value of type subdomain in the FC territory and subtype subdomain; Whether have business information in the judgment data frame exactly, here the value of type is 11, and the value of subtype is 0000; Representing that this Frame is the NAN Frame, can be the NAN Frame with this Frame of value representation that Type and Subtype are changed to other also.

In technique scheme; Preferably; Said Frame is neighbours' sensing network Frame, and said business information determination module confirms that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme; The recipient is according to flag; Can more specifically identify Frame is the NAN Frame that comprises business information, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme, preferably, said business information flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme, the recipient only needs the parse for frame head part, just can obtain complete business information; And do not need the parse for frame body portion, and reduced parse operation, reduced electric quantity consumption; Here the business information territory is added to the back of the source address field of Frame, after STA has resolved destination address and source address, can directly resolve the business information territory; And reduce parsing to other territory, help the STA power saving.

In technique scheme, preferably, said business information flag comprises one or more positions in the business information territory in the said frame head part.In this technical scheme, the recipient comprises business information according to 48 bits in business information territory of frame head part in the specified data frame, and other bit length comes also can be used to represent business information.

In technique scheme; Preferably; Said business information flag comprises type of service flag and professional details flag; Said business information determination module is confirmed the type of said business according to the value of said type of service flag, confirms the details of said business according to the value of said professional details flag.In this technical scheme, the recipient can parse professional type information and details two parts, to judge whether to carry out this business.

In technique scheme, preferably, said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame part order 1 position or other position of said medium access control frame.In this technical scheme; Business information can be recorded in the form of information element in the frame, can be arranged in the position of frame order 1, after recipient STA has resolved the business information element; See whether be own interested business; If not directly abandoning this frame, help the STA power saving, the business information element also can be recorded in other order position of frame part.

In technique scheme; Preferably; Said business information flag comprises type of service flag, length mark position and professional details flag; Said business information determination module is confirmed the type of said business according to the value of said type of service flag, confirms the length of said professional details flag according to said length mark position, confirms the details of said business according to the value of said professional details flag.In this technical scheme; Equally business information is divided into type information and details; Because the length of details is unfixed often, so also provide length information to represent the length of details, the recipient is according to length information simultaneously; Come accurately to parse professional details, avoid producing mistake.

In technique scheme, preferably, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.In this technical scheme, the length of type information, length information and details depends on the concrete needs of concrete business.

In technique scheme, preferably, said business is the transmit leg of a said Frame business current or that carry out At All Other Times.In this technical scheme; The recipient can parse the current business of transmit leg or the business that other times carry out from Frame; And select whether carry out this business according to self needs, after the recipient resolves these data like this, just can know the current business that maybe will carry out; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

The present invention also provides a kind of data communications method, comprising: receiving data frames comprises Frame flag and business information flag in the said Frame; Confirm to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirm professional relevant information according to the value of said business information flag.In this technical scheme; Recipient's STA is when receiving Frame; Can judge according to the value of Frame flag and wherein to comprise business information; And can further resolve the particular content of business information, and based on self judging whether to carry out this business, this scheme helps the discovery of potential service-user.

In technique scheme; Preferably; Said Frame is neighbours' sensing network Frame, and said value according to said Frame flag confirms that comprising said business information flag in the said Frame comprises: confirm that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme; The recipient is according to flag; Can more specifically identify Frame is the NAN Frame that comprises business information, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme; Preferably; Said business information flag comprises type of service flag and professional details flag; Said value according to said business information flag confirms that professional relevant information comprises: confirm the type of said business according to the value of said type of service flag, confirm the details of said business according to the value of said professional details flag.In this technical scheme, the recipient can parse professional type information and details two parts, to judge whether to carry out this business.

In technique scheme; Preferably; Said business information flag comprises type of service flag, length mark position and professional details flag; Said value according to said business information flag confirms that professional relevant information comprises: confirm the type of said business according to the value of said type of service flag, confirm the length of said professional details flag according to said length mark position, confirm the details of said business according to the value of said professional details flag.In this technical scheme; Equally business information is divided into type information and details; Because the length of details is unfixed often, so also provide length information to represent the length of details, the recipient is according to length information simultaneously; Come accurately to parse professional details, avoid producing mistake.

Through above technical scheme, can realize data communication equipment and data communications method, can guarantee in the NAN network; In the process that STA commences business, can the business information of self carrying out maybe will carrying out be sent, make the recipient STA that receives business information can be when needed; Commence business by business information; To guarantee in time to detect potential service-user,, saved the physics frame head simultaneously with respect to periodic transmission service discovery messages or device discovery messages; Also help power saving, also accelerated the quick discovery procedure of equipment room.

Description of drawings

Fig. 1 is the block diagram of data communication equipment according to an embodiment of the invention;

Fig. 2 is the flow chart of data communications method according to an embodiment of the invention;

Fig. 3 is the block diagram of data communication equipment according to an embodiment of the invention;

Fig. 4 is the flow chart of data communications method according to an embodiment of the invention;

Fig. 5 is the structural representation of the Frame in the data communications method according to an embodiment of the invention;

Fig. 6 is the structural representation of the Frame in the data communications method according to an embodiment of the invention;

Fig. 7 is the structural representation of the Frame in the data communications method according to an embodiment of the invention;

Fig. 8 is the structural representation of the Frame in the data communications method according to an embodiment of the invention.

Embodiment

In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.

A lot of details have been set forth in the following description so that make much of the present invention; But; The present invention can also adopt other to be different from alternate manner described here and implement, and therefore, protection scope of the present invention does not receive the restriction of following disclosed specific embodiment.

Fig. 1 is the block diagram of data communication equipment according to an embodiment of the invention.

As shown in Figure 1; The present invention provides a kind of data communication equipment 100; Comprise: Frame generation module 102, generate Frame, comprise Frame flag and business information flag in the said Frame; Comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional; Data interaction module 104 is sent said Frame.In this technical scheme; Data communication equipment 100 is as the terminal, realizations such as signal receiving/transmission device that data interaction module 102 can be through the terminal and antenna, and Frame generation module 104 can be realized by the processing unit that terminal inner generates message; Through this technical scheme; STA can be in the process that business is carried out, and business information is recorded in the Frame also sends simultaneously, and the recipient can judge according to the Frame flag when receiving Frame and wherein comprise business information; And can further resolve the particular content of business information, help the discovery of potential service-user.

In technique scheme, said Frame flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme; The Frame flag is arranged on the frame head part, is because the data frame analyzing of recipient STA can begin from frame head, can confirm wherein whether to have comprised business information according to the value of flag; Continue to resolve and obtain business information; Do not have business information then directly to ignore Frame and get final product, avoided unnecessary parse operation, saved electric weight.

In technique scheme, said Frame flag comprises the one or more positions in the said frame head frame control domain partly.In this technical scheme; One in the FC territory of frame head part or multidigit are used for the Frame flag, can be illustrated in and have the business information flag in this Frame, the destination address that other STA resolves this Frame is not the data that send to oneself; Do not abandon this Frame up to having resolved the business information flag; See it whether is own interested business, if with the transmit leg of this Frame carry out related, if not abandoning this Frame.

In technique scheme, said Frame flag comprises the one or more positions in type subdomain and the subtype subdomain in the said frame control domain.In this technical scheme, according to present technology, in the type subdomain and subtype subdomain in the FC territory; Exist undefined reservation position; Utilize to keep the sign that the position can be carried out business information easily, here the value of type is 11, and the value of subtype is 0000; Representing that this Frame is the NAN Frame, can be the NAN Frame with this Frame of value representation that Type and Subtype are changed to other also.

In technique scheme, said Frame is neighbours' sensing network Frame, and the said Frame of the value representation of said Frame flag is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme, it is the NAN Frame that comprises business information that flag can more specifically identify Frame, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme, said business information flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme, business information also is recorded in the frame head part, can be so that the recipient need the parse for frame body portion; Just can parse required business information apace from the frame head part; Can the business information territory be added on the back of the source address field of Frame here, after STA has resolved destination address and source address, directly resolve the business information territory; And reduce parsing to other territory, help the STA power saving.

In technique scheme, said business information flag comprises one or more positions of address 3 subdomains in the said frame head part.In this technical scheme, can utilize 48 bits in business information territory of frame head part, represent business information, also can represent business information for other bit length.

In technique scheme; Said business information flag comprises type of service flag and professional details flag; The type of the said business of value representation of said type of service flag, the details of the said business of value representation of said professional details flag.In this technical scheme, business information physical record form is provided, through type information and the professional content of details two parts accurate recording.

In technique scheme, said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.In this technical scheme, owing to have 48 bits in the business information territory, so can it all be used for the record of business information, the mode that concrete dividing mode is not limited to write down in the such scheme.

In technique scheme, said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame part order 1 position or other position of said medium access control frame.In this technical scheme; Business information can be recorded in the form of information element in the frame, can be arranged in the position of frame order 1, after helping other STA like this and having resolved the business information element; See whether be own interested business; If not directly abandoning this frame, help the STA power saving, the business information element also can be recorded in other order position of frame part.

In technique scheme; Said business information flag comprises type of service flag, length mark position and professional details flag; The type of the said business of value representation of said type of service flag; The length of the said professional details flag of said length mark bit representation, the details of the said business of value representation of said professional details flag.In this technical scheme, equally business information is divided into type information and details, simultaneously because the length of details is unfixed often, so also provide length information to identify the length of details.

In technique scheme, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.In this technical scheme, the length of type information, length information and details can be provided with according to the concrete needs of concrete business neatly.

In technique scheme, said business is a said data communication equipment business current or that carry out At All Other Times.In this technical scheme, can write down the information of current business in the Frame, also can write down the business that other times carry out; Give the recipient with notice, after other potential user resolves these data, just can know the current business that maybe will carry out like this; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

Fig. 2 is the flow chart of data communications method according to an embodiment of the invention.

As shown in Figure 2; The present invention also provides a kind of data communications method; Comprise: step 202, generate Frame, comprise Frame flag and business information flag in the said Frame; Comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional; Step 204 is sent said Frame.In this technical scheme; STA can be in the process that business is carried out; Business information is recorded in the Frame also sends simultaneously; The recipient can judge according to the Frame flag when receiving Frame and wherein comprise business information, and can further resolve the particular content of business information, helps the discovery of potential service-user.

In technique scheme, said business information flag comprises one or more positions in the business information territory in the said frame head part.In this technical scheme, can utilize 48 bits in business information territory of frame head part, represent business information, also can represent business information for other bit length.

In technique scheme, said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame part order 1 position or other position of said medium access control frame.In this technical scheme, business information has been recorded in the frame, this is because the length of frame part is longer; More for a long time, still can intactly carry out record in professional details content, business information can be recorded in the form of information element in the frame; Can be arranged in the position of frame order 1; After helping other STA like this and having resolved the business information element, see whether be own interested business, if not directly abandoning this frame; Help the STA power saving, the business information element also can be recorded in other order position of frame part.

In technique scheme; Said business information flag comprises type of service flag, length mark position and professional details flag; The type of the said business of value representation of said type of service flag; The length of the said professional details flag of said length mark bit representation, the details of the said business of value representation of said professional details flag.In this technical scheme, equally business information is divided into type information and details, simultaneously because the length of details is unfixed often, so also provide length information to represent the length of details.

In technique scheme, said business is the transmit leg of a said Frame business current or that carry out At All Other Times.In this technical scheme, can write down the information of current business in the Frame, also can write down the business that other times carry out; Give the recipient with notice, after other potential user resolves these data, just can know the current business that maybe will carry out like this; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

Fig. 3 is the block diagram of data communication equipment according to an embodiment of the invention.

As shown in Figure 3, the present invention also provides a kind of data communication equipment 300, comprising: data interaction module 302, and receiving data frames comprises Frame flag and business information flag in the said Frame; Business information determination module 304 confirms to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirms professional relevant information according to the value of said business information flag.In this technical scheme; Data communication equipment 300 is as the terminal, realizations such as signal receiving/transmission device that data interaction module 302 can be through the terminal and antenna, and Frame generation module 304 can be realized by the processing unit that terminal inner generates message; Through this technical scheme; Recipient's STA can judge according to the value of Frame flag and wherein to comprise business information when receiving Frame, and can further resolve the particular content of business information; And based on self judging whether to carry out this business, this scheme helps the discovery of potential service-user.

In technique scheme, said Frame flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme; The data frame analyzing of recipient STA can begin from frame head; Can confirm wherein whether comprised business information according to the value of flag, continue to resolve obtaining business information, if do not have business information then needn't the parse for frame body portion; Avoid unnecessary parse operation, saved electric weight.

In technique scheme, said Frame flag comprises the one or more positions in the said frame head frame control domain partly.In this technical scheme; One or multidigit in the FC territory of recipient's parse for frame head part just can be informed in and have the business information flag in this Frame, and the destination address that recipient STA resolves this Frame is not the data that send to oneself; Do not abandon this Frame up to having resolved the business information flag; See it whether is own interested business, if with the transmit leg of this Frame carry out related, if not abandoning this Frame.

In technique scheme, said Frame flag comprises the one or more positions in type subdomain and the subtype subdomain in the said frame control domain.In this technical scheme; The recipient is according to the value of type subdomain in the FC territory and subtype subdomain; Whether have business information in the judgment data frame exactly, here the value of type is 11, and the value of subtype is 0000; Representing that this Frame is the NAN Frame, can be the NAN Frame with this Frame of value representation that Type and Subtype are changed to other also.

In technique scheme, said Frame is neighbours' sensing network Frame, and said business information determination module 304 confirms that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme; The recipient is according to flag; Can more specifically identify Frame is the NAN Frame that comprises business information, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme, said business information flag comprises frame head one or more positions partly of the medium access control frame of said Frame.In this technical scheme, the recipient only needs the parse for frame head part, just can obtain complete business information; And do not need the parse for frame body portion, and reduced parse operation, reduced electric quantity consumption; Here the business information territory is added to the back of the source address field of Frame, after STA has resolved destination address and source address, can directly resolve the business information territory; And reduce parsing to other territory, help the STA power saving.

In technique scheme, said business information flag comprises one or more positions of address 3 subdomains in the said frame head part.In this technical scheme, the recipient comprises business information according to 48 bits in business information territory of frame head part in the specified data frame, and other bit length comes also can be used to represent business information.

In technique scheme; Said business information flag comprises type of service flag and professional details flag; Said business information determination module 304 is confirmed the type of said business according to the value of said type of service flag, confirms the details of said business according to the value of said professional details flag.In this technical scheme, the recipient can parse professional type information and details two parts, to judge whether to carry out this business.

In technique scheme, said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame part order 1 position or other position of said medium access control frame.In this technical scheme; Business information can be recorded in the form of information element in the frame, can be arranged in the position of frame order 1, after recipient STA has resolved the business information element; See whether be own interested business; If not directly abandoning this frame, help the STA power saving, the business information element also can be recorded in other order position of frame part.

In technique scheme; Said business information flag comprises type of service flag, length mark position and professional details flag; Said business information determination module 304 is confirmed the type of said business according to the value of said type of service flag; Confirm the length of said professional details flag according to said length mark position, confirm the details of said business according to the value of said professional details flag.In this technical scheme; Equally business information is divided into type information and details; Because the length of details is unfixed often, so also provide length information to represent the length of details, the recipient is according to length information simultaneously; Come accurately to parse professional details, avoid producing mistake.

In technique scheme, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.In this technical scheme, the length of type information, length information and details depends on the concrete needs of concrete business.

In technique scheme, said business is the transmit leg of a said Frame business current or that carry out At All Other Times.In this technical scheme; The recipient can parse the current business of transmit leg or the business that other times carry out from Frame; And select whether carry out this business according to self needs, after the recipient resolves these data like this, just can know the current business that maybe will carry out; Be convenient to set up related with transmit leg fast; Simultaneously in Frame, add the previous field and represent business current or that will carry out, reduced and periodically sent service discovery messages or device discovery messages, help the equipment power saving.

Fig. 4 is the flow chart of data communications method according to an embodiment of the invention.

As shown in Figure 4, the present invention also provides a kind of data communications method, comprising: step 402, and receiving data frames comprises Frame flag and business information flag in the said Frame; Step 404 confirms to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirms professional relevant information according to the value of said business information flag.In this technical scheme; Recipient's STA is when receiving Frame; Can judge according to the value of Frame flag and wherein to comprise business information; And can further resolve the particular content of business information, and based on self judging whether to carry out this business, this scheme helps the discovery of potential service-user.

In technique scheme, said Frame is neighbours' sensing network Frame, and said step 402 comprises: confirm that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.In this technical scheme; The recipient is according to flag; Can more specifically identify Frame is the NAN Frame that comprises business information, when flag is set to first value, representes that this Frame is the NAN Frame and in this Frame, has the business information flag.

In technique scheme, said business information flag comprises one or more positions in the business information territory in the said frame head part.In this technical scheme, the recipient comprises business information according to 48 bits in business information territory of frame head part in the specified data frame, and other bit length comes also can be used to represent business information.

In technique scheme; Said business information flag comprises type of service flag and professional details flag; Said step 402 comprises: confirm the type of said business according to the value of said type of service flag, confirm the details of said business according to the value of said professional details flag.In this technical scheme, the recipient can parse professional type information and details two parts, to judge whether to carry out this business.

In technique scheme; Said business information flag comprises type of service flag, length mark position and professional details flag; Said step 404 comprises: the type of confirming said business according to the value of said type of service flag; Confirm the length of said professional details flag according to said length mark position, confirm the details of said business according to the value of said professional details flag.In this technical scheme; Equally business information is divided into type information and details; Because the length of details is unfixed often, so also provide length information to represent the length of details, the recipient is according to length information simultaneously; Come accurately to parse professional details, avoid producing mistake.

Among the present invention; Provide a kind of both sides in communication; The equipment that can solve in the NAN network is carrying out upper-layer service when communication; Can issue its ongoing service message simultaneously or the service message that will carry out, also not add the equipment of NAN network so that find potential other, concrete with reference to below two embodiment providing.

Embodiment one:

To play between the terminal is example; In order to let other interested player of terminal surrounding add recreation, the recreation both sides can add new information on services territory in Frame in communication process; Be 48 bits or other length; The bit of 8 or other quantity representes it is which kind of type of service, such as type of play, and what recreation is the bit sign of other 40 bits or other quantity specifically be.

In the present embodiment; In order to let potential identical services person can add the NAN network; Can add the top special identifier that is proposed in the structure with the available data frame; Communicate in the process player both sides like this, whether be oneself interested to other potential professional person through intercepting this special identifier symbol if just can understand this business, if this NAN network that just adds interested.

Concrete frame structure is as shown in Figure 5; Wherein FC is a frame control frame control domain, and A1 is a destination address, and A2 is a source address; A3 is exactly originally to be territory---business information territory newly-increased in the strength; Whether Frame Body frame is the concrete data interaction that communicating pair carried out, and FCS (frame check sequence) is a Frame Check Sequence, be used for the position of Frame that verification received to make mistakes.

Because the A1 address in this frame structure is a unicast address, so after other equipment possibly occurring and receiving this Frame, find that destination address is not oneself; And directly abandon this Frame; Here define a kind of mechanism, after STA has resolved the Frame flag in the frame control domain, find that this Frame is the NAN Frame; And STA finds that destination address is not oneself; After must having resolved A3, whether corresponding this business is with own interested, if not directly losing this Frame; If own interested business after also only needing to have resolved A3, looks for suitable opportunity and NAN network to connect again, help the equipment power saving like this, also accelerated the association process of equipment room.

Particularly; Can utilize reservation position in the FC territory to define this Frame is the NAN Frame; After other this frame of STA parsing is the NAN Frame so; Directly be resolved to the A3 territory and be only rejection and abandon whole Frame surely, the concrete structure in FC territory is as shown in Figure 6, and the concrete definition that keeps the position is then as shown in the table.

Embodiment two:

Defined new information element (New IE) is carried in the Frame body part in the mac frame, and concrete structure is as shown in Figure 7.

Wherein, the structure of Frame body part is as shown in the table:

Wherein New IE structure is specifically as shown in Figure 8, and wherein Element ID is used for representing type of service, and Detail of information is used for representing professional details.

Because the A1 address is unicast address in this frame structure, can occur equally finding it is not to abandon this frame after miscellaneous equipment is received this frame to own Frame, so adopt and embodiment one in same mode; After coming the regulation miscellaneous equipment to receive this frame; Resolved the frame identification position in the frame control domain, found that this Frame is the NAN Frame, has then resolved new information element; Find it is not the own interested entire frame that abandons again, here repeated description no longer.

By above-mentioned a plurality of embodiment, can know according to technical scheme of the present invention, adopt the benefit that adds information element in the Frame to comprise:

1, in existing wi-fi technology, Frame is sent out out at last, is dimeric, and a part is the physical frame head part, length 192 bits or other bit length of this part, and another part is a mac frame.

If the COS of the broadcasting oneself that equipment is independent with and the specifying information of COS; At last whole information broadcast is come out just must comprise the physics head part; And in technical scheme of the present invention, skilfully used both sides when communication; In Frame, add the specifying information of service COS, and saved 192 bits or other bit length of physics head part, be of value to the equipment power saving.

2, in the process of transmitting of Frame, other potential equipment just can be found own interested business, helps the user and adds the NAN network fast, strengthens user experience.

The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a data communication equipment is characterized in that, comprising:

The Frame generation module; Generate Frame; Comprise Frame flag and business information flag in the said Frame, comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional;

The data interaction module is sent said Frame.

2. data communication equipment according to claim 1; It is characterized in that; One or more positions of the frame head of the medium access control frame that said Frame flag is said Frame part comprise one or more in type subdomain and the subtype subdomain in the said frame control domain.

3. data communication equipment according to claim 1; It is characterized in that; Said Frame is neighbours' sensing network Frame, and the said Frame of the value representation of said Frame flag is the said neighbours' sensing network Frame that comprises said business information flag.

4. data communication equipment according to claim 1; It is characterized in that; One or more positions of the frame head of the medium access control frame that said business information flag is said Frame part comprise one or more positions in the business information territory in the said frame head part.

5. data communication equipment according to claim 4; It is characterized in that; Said business information flag comprises type of service flag and professional details flag; The type of the said business of value representation of said type of service flag; The details of the said business of value representation of said professional details flag, said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.

6. data communication equipment according to claim 1; It is characterized in that; Said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame order 1 position or other position partly of said medium access control frame.

7. data communication equipment according to claim 6; It is characterized in that; Said business information flag comprises type of service flag, length mark position and professional details flag; The type of the said business of value representation of said type of service flag; The length of the said professional details flag of said length mark bit representation, the details of the said business of value representation of said professional details flag, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.

8. according to each described data communication equipment in the claim 1 to 7, it is characterized in that said business is a said data communication equipment business current or that carry out At All Other Times.

9. a data communications method is characterized in that, comprising:

Generate Frame, comprise Frame flag and business information flag in the said Frame, comprise said business information flag in the said Frame of the value representation of said Frame flag, the relevant information that the value representation of said business information flag is professional;

Send said Frame.

10. data communications method according to claim 9; It is characterized in that; One or more positions of the frame head of the medium access control frame that said Frame flag is said Frame part comprise one or more in type subdomain and the subtype subdomain in the said frame control domain.

11. data communications method according to claim 10; It is characterized in that; Said Frame is neighbours' sensing network Frame, and the said Frame of the value representation of said Frame flag is the said neighbours' sensing network Frame that comprises said business information flag.

12. data communications method according to claim 9; It is characterized in that; One or more positions of the frame head of the medium access control frame that said business information flag is said Frame part comprise one or more positions in the business information territory in the said frame head part.

13. data communications method according to claim 12; It is characterized in that; Said business information flag comprises type of service flag and professional details flag; The type of the said business of value representation of said type of service flag; The details of the said business of value representation of said professional details flag, said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.

14. data communications method according to claim 9; It is characterized in that; Said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame order 1 position or other position partly of said medium access control frame.

15. data communications method according to claim 14; It is characterized in that; Said business information flag comprises type of service flag, length mark position and professional details flag; The type of the said business of value representation of said type of service flag; The length of the said professional details flag of said length mark bit representation, the details of the said business of value representation of said professional details flag, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.

16., it is characterized in that said business is the transmit leg of a said Frame business current or that carry out At All Other Times according to each described data communications method in the claim 9 to 15.

17. a data communication equipment is characterized in that, comprising:

The data interaction module, receiving data frames comprises Frame flag and business information flag in the said Frame;

The business information determination module confirms to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirms professional relevant information according to the value of said business information flag.

18. data communication equipment according to claim 17; It is characterized in that; One or more positions of the frame head of the medium access control frame that said Frame flag is said Frame part comprise one or more in type subdomain and the subtype subdomain in the said frame control domain.

19. data communication equipment according to claim 18; It is characterized in that; Said Frame is neighbours' sensing network Frame, and said business information determination module confirms that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.

20. data communication equipment according to claim 17; It is characterized in that; One or more positions of the frame head of the medium access control frame that said business information flag is said Frame part comprise one or more positions in the business information territory in the said frame head part.

21. data communication equipment according to claim 20; It is characterized in that; Said business information flag comprises type of service flag and professional details flag; Said business information determination module is confirmed the type of said business according to the value of said type of service flag; Confirm the details of said business according to the value of said professional details flag, said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.

22. data communication equipment according to claim 17; It is characterized in that; Said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame order 1 position or other position partly of said medium access control frame.

23. data communication equipment according to claim 22; It is characterized in that; Said business information flag comprises type of service flag, length mark position and professional details flag; Said business information determination module is confirmed the type of said business according to the value of said type of service flag; Confirm the length of said professional details flag according to said length mark position, confirm the details of said business according to the value of said professional details flag, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.

24., it is characterized in that said business is the transmit leg of a said Frame business current or that carry out At All Other Times according to each described data communication equipment in the claim 17 to 23.

25. a data communications method is characterized in that, comprising:

Receiving data frames comprises Frame flag and business information flag in the said Frame;

Confirm to comprise in the said Frame said business information flag according to the value of said Frame flag, and confirm professional relevant information according to the value of said business information flag.

26. data communications method according to claim 25; It is characterized in that; One or more positions of the frame head of the medium access control frame that said Frame flag is said Frame part comprise one or more in type subdomain and the subtype subdomain in the said frame control domain.

27. data communications method according to claim 26 is characterized in that, said Frame is neighbours' sensing network Frame, and said value according to said Frame flag is confirmed to comprise in the said Frame said business information flag and comprised:

Confirm that according to the value of said Frame flag said Frame is the said neighbours' sensing network Frame that comprises said business information flag.

28. data communications method according to claim 25; It is characterized in that; One or more positions of the frame head of the medium access control frame that said business information flag is said Frame part comprise one or more positions in the business information territory in the said frame head part.

29. data communications method according to claim 28 is characterized in that, said business information flag comprises type of service flag and professional details flag, and said value according to said business information flag confirms that professional relevant information comprises:

Confirm the type of said business according to the value of said type of service flag; Confirm the details of said business according to the value of said professional details flag; Said type of service flag comprises the bit more than 8 or 8 in the said business information territory, and said professional details flag comprises all the other bits in the said business information territory.

30. data communications method according to claim 25; It is characterized in that; Said business information flag comprises frame one or more positions partly of the medium access control frame of said Frame, in frame order 1 position or other position partly of said medium access control frame.

31. data communications method according to claim 30; It is characterized in that; Said business information flag comprises type of service flag, length mark position and professional details flag, and said value according to said business information flag confirms that professional relevant information comprises:

Confirm the type of said business according to the value of said type of service flag; Confirm the length of said professional details flag according to said length mark position; Confirm the details of said business according to the value of said professional details flag, the length of said type of service flag, said length mark position and said professional details flag is respectively one or more bytes.

32., it is characterized in that said business is the transmit leg of a said Frame business current or that carry out At All Other Times according to each described data communications method in the claim 25 to 31.