CN102833837A - Data communication device and data communication method - Google Patents

Data communication device and data communication method Download PDF

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Publication number
CN102833837A
CN102833837A CN2012103592492A CN201210359249A CN102833837A CN 102833837 A CN102833837 A CN 102833837A CN 2012103592492 A CN2012103592492 A CN 2012103592492A CN 201210359249 A CN201210359249 A CN 201210359249A CN 102833837 A CN102833837 A CN 102833837A
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China
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frame
flag
message
type
message frame
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CN2012103592492A
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CN102833837B (en
Inventor
董贤东
刘峰
马莉
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Dongguan Yulong Telecommunication Technology Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Dongguan Yulong Telecommunication Technology Co Ltd
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Priority to CN201210359249.2A priority Critical patent/CN102833837B/en
Publication of CN102833837A publication Critical patent/CN102833837A/en
Priority to PCT/CN2013/080654 priority patent/WO2014044083A1/en
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Publication of CN102833837B publication Critical patent/CN102833837B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a data communication device and a data communication method. The data communication device comprises an information generation module and a data interaction module. The information generation module is used for generating an information frame which comprises an information frame identification bit and a service information identification bit, wherein the value of the information frame identification bit indicates the type of the information frame and indicates that the information frame comprises the service information identification bit; and the value of the service information identification bit indicates relate information of the business. The data interaction module is used for sending the information frame. With the adoption of the data communication device and the data communication method, the time for sending the information cannot be too long during the process of finding the device, the consumption of electricity can be reduced, and before establishing a link, whether the linking object has the same hobbies or services can be known to avoid unnecessary connection.

Description

Data communication equipment and data communications method
Technical field
The present invention relates to moving communicating field, in particular to a kind of data communication equipment and a kind of data communications method.
Background technology
In WFA (Wi-Fi Alliance); Set up the new NAN of seminar (NeighborAwareness Networking; Neighbours' sensing network); The content of its research is a social networks, mainly is how STA (terminal) finds other STA and carry out interest and share, find fast and discovery procedure in how power saving.
In the NAN network, require between the user each other near the time, equipment can find fast that other equipment are to carry out association; Search equipment needs to find the NAN equipment of broadcasting a large amount of the time; The NAN broadcasting equipment should in time compile broadcast to guarantee search equipment not power consumption in a large number when finding a large amount of NAN equipment.
In existing Wi-Fi p2p technology, defined a kind of device discovery frame, through in the Beacon frame, periodically broadcasting out, after setting up the p2p network, can carry out some professional communications.
The characteristics of considering the NAN network are can form the NAN network in order to let by the common hobby or the equipment of common service, carry out service communication.And existing Wi-Fi p2p technology obviously is to satisfy the characteristics of NAN network: 1, the device discovery messages among the p2p is included in the Beacon frame, and the Beacon frame is long, if frequent broadcasting is unfavorable for the equipment power saving; 2, p2p equipment is before setting up association, be do not know affiliated partner whether with same hobby or business are arranged oneself.
Therefore; Need a kind of new equipment/service discovering mechanism, make equipment in the process of finding, the time that message is sent is unlikely to long; Reduce consumption of electric; And can be before setting up association, just can know affiliated partner whether with same hobby or business are arranged oneself, to avoid carrying out unnecessary connection.
Summary of the invention
Technical problem to be solved by this invention is; A kind of new equipment/service discovering mechanism is provided, makes equipment in the process of finding, the time that message is sent is unlikely to long; Reduce consumption of electric; And can be before setting up association, just can know affiliated partner whether with same hobby or business are arranged oneself, to avoid carrying out unnecessary connection.
In view of this; The present invention provides a kind of data communication equipment; Comprise: message generating module, generate message frame, comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes to comprise in the said message frame said business information flag, the relevant information that the value representation of said business information flag is professional; The data interaction module is sent said message 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; Message generating module can be realized by the processing unit that terminal inner generates message, through the present technique scheme, utilize message frame to carry out the notice of service related information; And notify the type of recipient's message frame, make the recipient to judge whether according to the type of message frame to resolve, for example; Consider from economizing electrical degree; Can not do parsing for some uninterested message frame,, find that this frame is own uninterested if for example a mobile terminal device is resolved the message frame flag; The remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame supplies the recipient to judge whether that according to service related information needs connect transmit leg and commence business also for the recipient provides service related information in addition.
In technique scheme, preferably, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, preferably, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, preferably, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme; Can the message identifier position be arranged on the frame head part of management frames and control frame, and, can the message identifier position be arranged on its frame head part or frame part for the common action frame; The type that all can indicate the existence of business information flag effectively and express frame; And frame length is all shorter, is beneficial to power saving, is fit to frequent transmitting-receiving.
In technique scheme, preferably, when said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more; When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more; When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; Whether can utilize the value that keeps the position to come indicating services message identification position to exist, for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And, no matter be to use type and subtype subdomain still to utilize frame part position for the common action frame, and all being fine, method is the same with the method for management frames and control frame, repeats no more here.
In technique scheme, preferably, when being first value, the value of said type subdomain and subtype subdomain representes that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; It is that NAN finds message frame that flag can more specifically identify message frame, representes that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, preferably, when said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said business information flag comprised one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field.
In technique scheme; Preferably; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part.
In technique scheme; Preferably; When said message frame is said control frame; 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; When said message frame is said management frames; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; Any concrete business of professional details domain identifier type of service kind the inside, for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, it is that NAN finds message frame that the action action frame information field is used for identifying this frame.
In technique scheme; Preferably; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
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 message frame; Also can write down the business that other times carry out, give the recipient with notice, like this after other potential user resolves these data; Just can know the current business that maybe will carry out, be convenient to set up related with transmit leg fast.
The present invention also provides a kind of data communications method; Comprise: generate message frame; Comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes and comprises said business information flag in the type of said message frame, the relevant information that the value representation of said business information flag is professional; Send said message frame.In this technical scheme, utilize message frame to carry out the notice of service related information, and notify the type of recipient's message frame; Make the recipient to judge whether according to the type of message frame to resolve; For example, consider, can not do parsing for some uninterested message frame from economizing electrical degree; If for example a mobile terminal device is resolved the message frame flag; Find that this frame is own uninterested, the remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame supplies the recipient to judge whether that according to service related information needs connect transmit leg and commence business also for the recipient provides service related information in addition.
In technique scheme, preferably, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, preferably, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, preferably, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme; Can the message identifier position be arranged on the frame head part of management frames and control frame, and, can the message identifier position be arranged on its frame head part or frame part for the common action frame; The type that all can indicate the existence of business information flag effectively and express frame; And frame length is all shorter, is beneficial to power saving, is fit to frequent transmitting-receiving.
In technique scheme, preferably, when said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more; When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more; When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; Whether can utilize the value that keeps the position to come indicating services message identification position to exist, for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And, no matter be to use type and subtype subdomain still to utilize frame part position for the common action frame, and all being fine, method is the same with the method for management frames and control frame, repeats no more here.
In technique scheme, preferably, when being first value, the value of said type subdomain and subtype subdomain representes that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; It is that NAN finds message frame that flag can more specifically identify message frame, representes that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, preferably, when said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said business information flag comprised one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field.
In technique scheme; Preferably; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part.
In technique scheme; Preferably; When said message frame is said control frame; 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; When said message frame is said management frames; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; Any concrete business of professional details domain identifier type of service kind the inside, for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, it is that NAN finds message frame that the action action frame information field is used for identifying this frame.
In technique scheme; Preferably; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, preferably, said business is the transmit leg of a said message 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 message frame; Also can write down the business that other times carry out, give the recipient with notice, like this after other potential user resolves these data; Just can know the current business that maybe will carry out, be convenient to set up related with transmit leg fast.
The present invention also provides a kind of data communication equipment, comprising: the data interaction module, receive message frame, and comprise message frame flag and business information flag in the said message frame; Message processing module is confirmed the type of said message frame and is confirmed to comprise said business information flag in the said message frame according to the value of said message 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; Message processing module can be realized that through the present technique scheme, the type of message frame can be at first known in reception by the processing unit of terminal inner processing messages; Type according to message frame judges whether to resolve, and for example, considers from economizing electrical degree; Can not do parsing for some uninterested message frame,, find that this frame is own uninterested if for example a mobile terminal device is resolved the message frame flag; The remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame is also for the recipient provides service related information in addition, and the recipient judges whether that according to service related information needs connect transmit leg and commence business.
In technique scheme, preferably, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, preferably, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, preferably, when said message frame was said control frame, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag; When said message frame was said management frames, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag; When said message frame was said common action frame, said message processing module confirmed that frame head part or one or more positions of frame part of the medium access control frame of said common action frame are said message frame flag.In this technical scheme, the message identifier position possibly be arranged on the frame head part of management frames and control frame, and for the common action frame; The message identifier position possibly be arranged on its frame head part or frame part; The recipient can in time find the existence of business information flag and the type of definite frame, and frame length is all shorter according to the structure of different frame; Be beneficial to power saving, be fit to frequent transmitting-receiving.
In technique scheme; Preferably; When said message frame was said control frame, said message processing module confirmed that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said control frame; When said message frame was said management frames, said message processing module confirmed that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said management frames; When said message frame is said common action frame; Said message processing module is confirmed one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more are said message frame flag.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; The recipient can confirm whether the business information flag exists according to the value that keeps the position, and for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And for the common action frame; The concrete structure that depends on the common action frame, the recipient can or utilize the value of frame part position according to type and subtype subdomain, confirms whether the business information flag exists; Method is the same with the method for handling management frames and control frame, repeats no more here.
In technique scheme; Preferably; When the value of said type subdomain and subtype subdomain was first value, said message processing module confirmed that said message frame is neighbours' sensing network discovery message frame, and said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; The recipient can confirm more specifically that according to flag message frame is that NAN finds message frame, confirms that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, preferably, when said message frame was said control frame, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said control frame are said business information flag; When said message frame was said management frames, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said management frames are said business information flag; When said message frame was said common action frame, said message processing module confirmed that one or more positions of frame part of the medium access control frame of said common action frame are said business information flag.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field; The recipient is according to the characteristics of control frame and common action frame, and service related information is obtained in corresponding position from frame.
In technique scheme; Preferably; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part, can determine whether that needs commence business according to business information after the recipient resolves.
In technique scheme; Preferably; When said message frame is said control frame; Said business information flag comprises type of service flag and professional details flag, and said message processing 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; When said message frame is said management frames; Said business information flag comprises type of service flag and professional details flag; Said message processing 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Said message processing module is confirmed the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; The recipient confirms any concrete business of type of service kind the inside according to professional details territory, and for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, the recipient confirms that according to the action action frame information field this frame is that NAN finds message frame.
In technique scheme; Preferably; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, preferably, said business is the transmit leg of a said message 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 message frame; And select whether to 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.
The present invention also provides a kind of data communications method, comprising: receive message frame, comprise message frame flag and business information flag in the said message frame; Confirm the type of said message frame and confirm to comprise said business information flag in the said message frame according to the value of said message frame flag, and confirm professional relevant information according to the value of said business information flag.In this technical scheme, the type of message frame can be at first known in reception, judges whether to resolve according to the type of message frame; For example, consider, can not do parsing for some uninterested message frame from economizing electrical degree; If for example a mobile terminal device is resolved the message frame flag; Find that this frame is own uninterested, the remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame is also for the recipient provides service related information in addition, and the recipient judges whether that according to service related information needs connect transmit leg and commence business.
In technique scheme, preferably, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, preferably, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, preferably, also comprise: when said message frame is said control frame, confirm that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag; When said message frame is said management frames, confirm that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag; When said message frame is said common action frame, confirm that frame head part or one or more positions of frame part of the medium access control frame of said common action frame are said message frame flag.In this technical scheme, the message identifier position possibly be arranged on the frame head part of management frames and control frame, and for the common action frame; The message identifier position possibly be arranged on its frame head part or frame part; The recipient can in time find the existence of business information flag and the type of definite frame, and frame length is all shorter according to the structure of different frame; Be beneficial to power saving, be fit to frequent transmitting-receiving.
In technique scheme, preferably, when said message frame is said control frame, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said control frame; When said message frame is said management frames, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said management frames; When said message frame is said common action frame; Confirm one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order position field one or more are said message frame flag.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; The recipient can confirm whether the business information flag exists according to the value that keeps the position, and for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And for the common action frame; The concrete structure that depends on the common action frame, the recipient can or utilize the value of frame part position according to type and subtype subdomain, confirms whether the business information flag exists; Method is the same with the method for handling management frames and control frame, repeats no more here.
In technique scheme; Preferably; Also comprise: when the value of said type subdomain and subtype subdomain is first value, confirm that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; The recipient can confirm more specifically that according to flag message frame is that NAN finds message frame, confirms that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, preferably, also comprise: when said message frame is said control frame, confirm that one or more positions of the frame head part of medium access control frame in the said control frame are said business information flag; When said message frame is said management frames, confirm that one or more positions of the frame head part of medium access control frame in the said management frames are said business information flag; When said message frame is said common action frame, confirm that one or more positions of frame part of the medium access control frame of said common action frame are said business information flag.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field; The recipient is according to the characteristics of control frame and common action frame, and service related information is obtained in corresponding position from frame.
In technique scheme; Preferably; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part, can determine whether that needs commence business according to business information after the recipient resolves.
In technique scheme; Preferably; Said value according to said business information flag confirms that professional relevant information comprises: when said message frame is said control frame; Said business information flag comprises type of service flag and professional details flag, confirms 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; When said message frame is said management frames; Said business information flag comprises type of service flag and professional details flag; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Confirm the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; The recipient confirms any concrete business of type of service kind the inside according to professional details territory, and for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, the recipient confirms that according to the action action frame information field this frame is that NAN finds message frame.
In technique scheme; Preferably; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, preferably, said business is the transmit leg of a said message 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 message frame; And select whether to 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.
Through above technical scheme; Can realize data communication equipment and data communications method, make equipment in the process of finding, the time that message is sent is unlikely to long; Reduce consumption of electric; And can be before setting up association, just can know affiliated partner whether with same hobby or business are arranged oneself, to avoid carrying out unnecessary connection.
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 frame assumption diagram in the data communications method according to an embodiment of the invention;
Fig. 6 is the frame assumption diagram in the data communications method according to an embodiment of the invention;
Fig. 7 is the frame assumption diagram in the data communications method according to an embodiment of the invention;
Fig. 8 is the frame assumption diagram 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: message generating module 102, generate message frame, comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes to comprise in the said message frame said business information flag, the relevant information that the value representation of said business information flag is professional; Data interaction module 104 is sent said message frame.In this technical scheme, data communication equipment is as the terminal, realizations such as signal receiving/transmission device that data interaction module 104 can be through the terminal and antenna; Message generating module 102 can be realized by the processing unit that terminal inner generates message, through the present technique scheme, utilize message frame to carry out the notice of service related information; And notify the type of recipient's message frame, make the recipient to judge whether according to the type of message frame to resolve, for example; Consider from economizing electrical degree; Can not do parsing for some uninterested message frame,, find that this frame is own uninterested if for example a mobile terminal device is resolved the message frame flag; The remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame supplies the recipient to judge whether that according to service related information needs connect transmit leg and commence business also for the recipient provides service related information in addition.
In technique scheme, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme; Can the message identifier position be arranged on the frame head part of management frames and control frame, and, can the message identifier position be arranged on its frame head part or frame part for the common action frame; The type that all can indicate the existence of business information flag effectively and express frame; And frame length is all shorter, is beneficial to power saving, is fit to frequent transmitting-receiving.
In technique scheme, when said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more; When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more; When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; Whether can utilize the value that keeps the position to come indicating services message identification position to exist, for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And, no matter be to use type and subtype subdomain still to utilize frame part position for the common action frame, and all being fine, method is the same with the method for management frames and control frame, repeats no more here.
In technique scheme, when being first value, the value of said type subdomain and subtype subdomain representes that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; It is that NAN finds message frame that flag can more specifically identify message frame, representes that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, when said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said business information flag comprised one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field.
In technique scheme; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part.
In technique scheme; When said message frame is said control frame; 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; When said message frame is said management frames; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; Any concrete business of professional details domain identifier type of service kind the inside, for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, it is that NAN finds message frame that the action action frame information field is used for identifying this frame.
In technique scheme; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
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 message frame; Also can write down the business that other times carry out, give the recipient with notice, like this after other potential user resolves these data; Just can know the current business that maybe will carry out, be convenient to set up related with transmit leg fast.
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 message frame, comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes and comprises said business information flag in the type of said message frame, the relevant information that the value representation of said business information flag is professional; Step 204 is sent said message frame.In this technical scheme, utilize message frame to carry out the notice of service related information, and notify the type of recipient's message frame; Make the recipient to judge whether according to the type of message frame to resolve; For example, consider, can not do parsing for some uninterested message frame from economizing electrical degree; If for example a mobile terminal device is resolved the message frame flag; Find that this frame is own uninterested, the remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame supplies the recipient to judge whether that according to service related information needs connect transmit leg and commence business also for the recipient provides service related information in addition.
In technique scheme, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme; Can the message identifier position be arranged on the frame head part of management frames and control frame, and, can the message identifier position be arranged on its frame head part or frame part for the common action frame; The type that all can indicate the existence of business information flag effectively and express frame; And frame length is all shorter, is beneficial to power saving, is fit to frequent transmitting-receiving.
In technique scheme, when said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more; When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more; When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; Whether can utilize the value that keeps the position to come indicating services message identification position to exist, for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And, no matter be to use type and subtype subdomain still to utilize frame part position for the common action frame, and all being fine, method is the same with the method for management frames and control frame, repeats no more here.
In technique scheme, when being first value, the value of said type subdomain and subtype subdomain representes that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; It is that NAN finds message frame that flag can more specifically identify message frame, representes that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, when said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame; When said message frame was said management frames, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said management frames; When said message frame was said common action frame, said business information flag comprised one or more positions of frame part of the medium access control frame of said common action frame.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field.
In technique scheme; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part.
In technique scheme; When said message frame is said control frame; 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; When said message frame is said management frames; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; Any concrete business of professional details domain identifier type of service kind the inside, for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, it is that NAN finds message frame that the action action frame information field is used for identifying this frame.
In technique scheme; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, said business is the transmit leg of a said message 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 message frame; Also can write down the business that other times carry out, give the recipient with notice, like this after other potential user resolves these data; Just can know the current business that maybe will carry out, be convenient to set up related with transmit leg fast.
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, receive message frame, and comprise message frame flag and business information flag in the said message frame; Message processing module 304 is confirmed the type of said message frame and is confirmed to comprise said business information flag in the said message frame according to the value of said message 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 data interaction module 302 can be through the terminal and antenna; Message processing module 304 can be realized that through the present technique scheme, the type of message frame can be at first known in reception by the processing unit of terminal inner processing messages; Type according to message frame judges whether to resolve; For example, consider, can not do parsing for some uninterested message frame from economizing electrical degree; If for example a mobile terminal device is resolved the message frame flag; Find that this frame is own uninterested, the remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame is also for the recipient provides service related information in addition, and the recipient judges whether that according to service related information needs connect transmit leg and commence business.
In technique scheme, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, the recipient can receive the message frame that sends through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, when said message frame was said control frame, said message processing module 304 confirmed that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag; When said message frame was said management frames, said message processing module 304 confirmed that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag; When said message frame was said common action frame, said message processing module 304 confirmed that frame head part or one or more positions of frame part of the medium access control frame of said common action frames are said message frame flag.In this technical scheme, the message identifier position possibly be arranged on the frame head part of management frames and control frame, and for the common action frame; The message identifier position possibly be arranged on its frame head part or frame part; The recipient can in time find the existence of business information flag and the type of definite frame, and frame length is all shorter according to the structure of different frame; Be beneficial to power saving, be fit to frequent transmitting-receiving.
In technique scheme; When said message frame was said control frame, one or more positions of type subdomain and subtype subdomain were said message frame flag in the frame control domain of the frame head part of the medium access control frame of said message processing module 304 definite said control frames; When said message frame was said management frames, one or more positions of type subdomain and subtype subdomain were said message frame flag in the frame control domain of the frame head part of the medium access control frame of said message processing module 304 definite said management frames; When said message frame is said common action frame; Said message processing module 304 is confirmed one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frames, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more are said message frame flag.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; The recipient can confirm whether the business information flag exists according to the value that keeps the position, and for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And for the common action frame; The concrete structure that depends on the common action frame, the recipient can or utilize the value of frame part position according to type and subtype subdomain, confirms whether the business information flag exists; Method is the same with the method for handling management frames and control frame, repeats no more here.
In technique scheme; When the value of said type subdomain and subtype subdomain is first value; Said message processing module 304 confirms that said message frame is neighbours' sensing network discovery message frame, and said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; The recipient can confirm more specifically that according to flag message frame is that NAN finds message frame, confirms that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, when said message frame was said control frame, said message processing module 304 confirmed that one or more positions of the frame head part of medium access control frame in the said control frame are said business information flag; When said message frame was said management frames, said message processing module 304 confirmed that one or more positions of the frame head part of medium access control frame in the said management frames are said business information flag; When said message frame was said common action frame, said message processing module 304 confirmed that one or more positions of frame part of the medium access control frame of said common action frames are said business information flag.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field; The recipient is according to the characteristics of control frame and common action frame, and service related information is obtained in corresponding position from frame.
In technique scheme; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part, can determine whether that needs commence business according to business information after the recipient resolves.
In technique scheme; When said message frame is said control frame; Said business information flag comprises type of service flag and professional details flag; Said message processing 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; When said message frame is said management frames; Said business information flag comprises type of service flag and professional details flag; Said message processing 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Said message processing module 304 is confirmed the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; The recipient confirms any concrete business of type of service kind the inside according to professional details territory, and for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, the recipient confirms that according to the action action frame information field this frame is that NAN finds message frame.
In technique scheme; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, said business is the transmit leg of a said message 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 message frame; And select whether to 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.
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, receive message frame, and comprise message frame flag and business information flag in the said message frame; Step 404 is confirmed the type of said message frame and is confirmed to comprise said business information flag in the said message frame according to the value of said message frame flag, and confirms professional relevant information according to the value of said business information flag.In this technical scheme, the type of message frame can be at first known in reception, judges whether to resolve according to the type of message frame; For example, consider, can not do parsing for some uninterested message frame from economizing electrical degree; If for example a mobile terminal device is resolved the message frame flag; Find that this frame is own uninterested, the remainder that just can directly abandon this message frame is no longer resolved, and helps power saving; Message frame is also for the recipient provides service related information in addition, and the recipient judges whether that according to service related information needs connect transmit leg and commence business.
In technique scheme, said message frame is broadcast message frame, multicast message frame or unicast messages frame.In this technical scheme, message frame can send through different modes such as broadcasting, multicast, clean cultures, if message frame is a broadcast message frame, the destination address in broadcast message frame is exactly the broadcast address so; If message frame is the multicast message frame, the destination address in the multicast message frame is exactly the multicast message address so, this multicast message address special identifier that can be a group specifically, and this special identifier can be 48 bits or other number of bits; If message frame is the unicast messages frame, the destination address in the unicast messages frame is exactly the unicast messages address so, specifically this unicast messages address MAC Address that is certain terminal equipment.
In technique scheme, said message frame is control frame, management frames or common action frame.In this technical scheme, message frame can send out with the form of control frame, management frames or common action frame, and this message frame also can send out with other form frame certainly.
In technique scheme, also comprise: when said message frame is said control frame, confirm that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag; When said message frame is said management frames, confirm that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag; When said message frame is said common action frame, confirm that frame head part or one or more positions of frame part of the medium access control frame of said common action frame are said message frame flag.In this technical scheme, the message identifier position possibly be arranged on the frame head part of management frames and control frame, and for the common action frame; The message identifier position possibly be arranged on its frame head part or frame part; The recipient can in time find the existence of business information flag and the type of definite frame, and frame length is all shorter according to the structure of different frame; Be beneficial to power saving, be fit to frequent transmitting-receiving.
In technique scheme, when said message frame is said control frame, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said control frame; When said message frame is said management frames, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said management frames; When said message frame is said common action frame; Confirm one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order position field one or more are said message frame flag.In this technical scheme; For control frame and management frames; Type and subtype two sub-domain in frame control territory also exist undefined reservation position; The recipient can confirm whether the business information flag exists according to the value that keeps the position, and for example, the value of Type can be got " 11 "; The value of subtype can be got " 0000 " and come the type of identification frames and represent that this frame comprises the business information flag, and Type and the Subtype subdomain value that also can get other is come the type of identification frames and represented that this frame comprises the business information flag certainly; And for the common action frame; The concrete structure that depends on the common action frame, the recipient can or utilize the value of frame part position according to type and subtype subdomain, confirms whether the business information flag exists; Method is the same with the method for handling management frames and control frame, repeats no more here.
In technique scheme; Also comprise: when the value of said type subdomain and subtype subdomain is first value; Confirm that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.In this technical scheme; The recipient can confirm more specifically that according to flag message frame is that NAN finds message frame, confirms that simultaneously this NAN finds that message frame comprises the business information flag, when the value that for example is resolved to flag as the recipient is " 110000 "; Just know that this frame is neighbours' sensing network discovery message frame; Just continue to resolve this frame rest parts if oneself will carry out the relevant business of neighbours' sensing network, otherwise then do not resolve this frame remainder, be beneficial to power saving.
In technique scheme, also comprise: when said message frame is said control frame, confirm that one or more positions of the frame head part of medium access control frame in the said control frame are said business information flag; When said message frame is said management frames, confirm that one or more positions of the frame head part of medium access control frame in the said management frames are said business information flag; When said message frame is said common action frame, confirm that one or more positions of frame part of the medium access control frame of said common action frame are said business information flag.In this technical scheme, based on the characteristics of different frame structure, for control frame and management frames; Need utilize frame header member record service related information, for example in control frame and management frames, can business information be identified the back that bit position is arranged on source address; And for the common action frame; Can utilize frame partly to come the record traffic relevant information, concrete can be arranged on frame part order 1 position field with it, can certainly be arranged on other order position field; The recipient is according to the characteristics of control frame and common action frame, and service related information is obtained in corresponding position from frame.
In technique scheme; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.In this technical scheme, business information can be recorded in the part of frame, and the frame part can be made up of a lot of territories; Can business information be recorded in frame part order 1 position field; The recipient only need resolve after the information in Order1 territory like this, sees whether oneself is interested, if interested then set up related with it; Need not resolve the remainder of this frame again, help power saving; Certainly also can business information be arranged on other order position field of frame part, can determine whether that needs commence business according to business information after the recipient resolves.
In technique scheme; Said step 404 comprises: when said message frame is said control frame; Said business information flag comprises type of service flag and professional details flag; 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; When said message frame is said management frames; Said business information flag comprises type of service flag and professional details flag; 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; When said message frame is said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Confirm the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.In this technical scheme; For control frame and management frames, the service related information territory is made up of traffic type information territory and professional details territory two parts, such as the professional kind of type information domain identifier; For example: recreation, chat or other class of business; The recipient confirms any concrete business of type of service kind the inside according to professional details territory, and for example details can be the CS recreation of recreation the inside, also can comprise the out of Memory of CS recreation; Information such as game ratings for example, traffic type information territory and professional details territory can be the subdomains in business information territory; For the common action frame; Comprised the traffic type information territory; Professional details territory and action action frame information field, wherein, traffic type information territory and professional details territory are with the same in the effect of management frames and control frame; Here repeat no more, the recipient confirms that according to the action action frame information field this frame is that NAN finds message frame.
In technique scheme; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag; When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.In this technical scheme; In control frame and management frames, can come the identification service information type with 8 bytes, for example with this big type of value " 00000000 " sign war game; The specifying information that identifies recreation with value " 0000000000000000000000000000000000000000 " is the CS recreation; The out of Memory that also can comprise CS recreation, for example information such as game ratings can certainly be come identification service information type and professional details with other number of bits; In action action frame; The identification method of traffic type information and professional details is with the same in management frames and control frame; Here repeat no more; Identify this frame when simultaneously the value of action action frame information field is set to " 00000111 " and find message frame for neighbours' sensing network, it is neighbours' sensing network discovery message frame that the value that value that can certainly the action message territory is set to other identifies this frame.
In technique scheme, said business is the transmit leg of a said message 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 message frame; And select whether to 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.
In one embodiment of the invention; For in device discovery procedure, can power saving can set up association fast again, provide in the present embodiment in the data communication technique scheme; The structure that wherein relates to two kinds of frames; Be defined as new discovery mechanism, be called the mixing discovery mechanism here, carry out device discovery and service discovering simultaneously.
According to the technical scheme of present embodiment, in discovery procedure, can know that equipment is the equipment of supporting the NAN function, can know the business that will carry out after the device association again.
The structure of first kind of frame, specifically as shown in Figure 5.
First kind of frame is control frame, and A1, A2 are respectively destination address and source address; Wherein A3 is the territory that increases newly---the business information territory, defined the specifying information of type of service and type of service, and the total length of this frame of redetermination is 24 bytes like this; With respect to the Beacon frame, length has only about 1/tens of Beacon frame, in transmission course, has saved the time greatly like this; Help the equipment power saving and accelerated device discovery; Adapt to the frequent mutual characteristics of data in the NAN network, frequent interactive service information between the assurance equipment has the equipment of common interest can connect to commence business.
For first kind of frame structure, as shown in Figure 6, the type that can use Type and Subtype in the FC territory to identify this frame jointly is the NAN control frame; As shown in the table; The value in type territory is set to 11, and the value in subtype territory is set to 0000, representes that this control frame is that NAN mixes discovery message.
Figure BDA00002185205100361
Then the recipient is after receiving control frame; Can judge this control frame according to the value of type and subtype and find message, and then from professional information field, parse service related information, if the recipient is interested in the business for mixing NAN; Then can be connected with transmit leg; And if message type that receives and the value of subtype are not 11 and 0000, then can judge does not have service related information in the message, can resolve and directly abandon it.
Because the structure of management frames is similar with control frame; So the structure according to above-mentioned control frame defines management frames; Promptly utilize A1, A2 A3 business information territory record traffic relevant information afterwards; And come through the value of type in the FC territory and subtype the identity management frame type---NAN finds message, and comprise business information in the indication frame.Then transmit leg can generate and send management frames and give the recipient, then behind recipient's receiving management frame, can judge whether to be connected with transmit leg and to commence business according to the hobby of oneself.
Second kind of frame structure is following:
Second kind of frame is new common action frame structure, partly encapsulates the common action frame at the frame of mac frame, and the common action frame structure is as shown in Figure 7.
Wherein, be that NAN finds message with this message of this domain identifier of Category (classification), its value can be set to 5; Receiver equipment is according to the value of Category, but whether has service related information in the judgment frame, has then to continue to resolve frame; Then need not continue to resolve, specific as follows:
Figure BDA00002185205100371
Or adopting method among the last embodiment to identify the frame of sending out is that NAN finds frame.
This territory of Action Value (type of service) is provided with and can will carries out professional type for 1 or 2 byte identifies.
This territory of Dialog Token (session tokens) is set to 1, and sign receives that mixing the recipient who finds message frame can continue next step action, sets up related with transmit leg.
This territory of Details of action value (specifying information of type of service) is variable, can be 48 bits, is used for the specifying information of mark business-type.
The length of whole message frame is 28 bytes, and the common action frame is encapsulated in the source address back of this frame, and is as the frame part of message frame, finally as shown in Figure 8; With respect to the Beacon frame, has only about 1/tens of Beacon frame length, concerning receiving-transmitting sides; The transmitting-receiving holding time of single is very of short duration, and very power saving is suitable for frequent mutual characteristics in the NAN network; If the recipient is interesting to service related information, then can be connected, to commence business with transmit leg.
In sum, through technical scheme of the present invention, can realize data communication equipment and data communications method; Satisfied the demand of NAN network characteristics; In discovery procedure, help simultaneously the equipment power saving, because the length of discovery message own reduces, also accelerated to find simultaneously with related.
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 (36)

1. a data communication equipment is characterized in that, comprising:
Message generating module; Generate message frame; Comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes to comprise in the said message frame said business information flag, the relevant information that the value representation of said business information flag is professional;
The data interaction module is sent said message frame.
2. data communication equipment according to claim 1 is characterized in that, said message frame is broadcast message frame, multicast message frame or unicast messages frame, and/or said message frame is control frame, management frames or common action frame.
3. data communication equipment according to claim 2 is characterized in that, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame;
When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames;
When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.
4. data communication equipment according to claim 2; It is characterized in that; When said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more;
When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more;
When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.
5. data communication equipment according to claim 4; It is characterized in that; Represent when the value of said type subdomain and subtype subdomain is first value that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.
6. data communication equipment according to claim 2; It is characterized in that; When said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame, and 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;
When said message frame is said management frames; Said business information flag comprises one or more positions of the frame head part of medium access control frame in the said management frames; 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;
When said message frame is said common action frame; Said business information flag comprises frame one or more positions partly of the medium access control frame of said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.
7. data communication equipment according to claim 6; It is characterized in that; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.
8. data communication equipment according to claim 6; It is characterized in that; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.
9. according to each described data communication equipment in the claim 1 to 8, it is characterized in that said business is a said data communication equipment business current or that carry out At All Other Times.
10. a data communications method is characterized in that, comprising:
Generate message frame; Comprise message frame flag and business information flag in the said message frame; The value of said message frame flag identifies the type of said message frame and representes and comprises said business information flag in the type of said message frame, the relevant information that the value representation of said business information flag is professional;
Send said message frame.
11. data communications method according to claim 10 is characterized in that, said message frame is broadcast message frame, multicast message frame or unicast messages frame, and/or said message frame is control frame, management frames or common action frame.
12. data communications method according to claim 11 is characterized in that, when said message frame was said control frame, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said control frame;
When said message frame was said management frames, said message frame flag comprised one or more positions of the frame head part of medium access control frame in the said management frames;
When said message frame was said common action frame, said message frame flag comprised frame head part or one or more positions of frame part of the medium access control frame of said common action frame.
13. data communications method according to claim 12; It is characterized in that; When said message frame was said control frame, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said control frame one or more;
When said message frame was said management frames, said message frame flag comprised type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said management frames one or more;
When said message frame is said common action frame; Said message frame flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more.
14. data communications method according to claim 13; It is characterized in that; Represent when the value of said type subdomain and subtype subdomain is first value that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.
15. data communications method according to claim 11; It is characterized in that; When said message frame was said control frame, said business information flag comprised one or more positions of the frame head part of medium access control frame in the said control frame, and 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;
When said message frame is said management frames; Said business information flag comprises one or more positions of the frame head part of medium access control frame in the said management frames; 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;
When said message frame is said common action frame; Said business information flag comprises frame one or more positions partly of the medium access control frame of said common action frame; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; The type of the said business of value representation of said type of service flag; The value representation recipient of said action action frame flag when receiving said common action frame can with transmit leg carry out related, the details of the said business of value representation of said professional details flag.
16. data communications method according to claim 15; It is characterized in that; When said message frame was said common action frame, said business information flag comprised one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame.
17. data communications method according to claim 15; It is characterized in that; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.
18., it is characterized in that said business is the transmit leg of a said message frame business current or that carry out At All Other Times according to each described data communications method in the claim 10 to 17.
19. a data communication equipment is characterized in that, comprising:
The data interaction module receives message frame, comprises message frame flag and business information flag in the said message frame;
Message processing module is confirmed the type of said message frame and is confirmed to comprise said business information flag in the said message frame according to the value of said message frame flag, and confirms professional relevant information according to the value of said business information flag.
20. data communication equipment according to claim 19 is characterized in that, said message frame is broadcast message frame, multicast message frame or unicast messages frame, and/or said message frame is control frame, management frames or common action frame.
21. data communication equipment according to claim 20; It is characterized in that; When said message frame was said control frame, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag;
When said message frame was said management frames, said message processing module confirmed that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag;
When said message frame was said common action frame, said message processing module confirmed that frame head part or one or more positions of frame part of the medium access control frame of said common action frame are said message frame flag.
22. data communication equipment according to claim 21; It is characterized in that; When said message frame was said control frame, said message processing module confirmed that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said control frame;
When said message frame was said management frames, said message processing module confirmed that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said management frames;
When said message frame is said common action frame; Said message processing module is confirmed one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order territory, position one or more are said message frame flag.
23. data communication equipment according to claim 22; It is characterized in that; When the value of said type subdomain and subtype subdomain is first value; Said message processing module confirms that said message frame is neighbours' sensing network discovery message frame, and said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.
24. data communication equipment according to claim 20; It is characterized in that; When said message frame is said control frame; Said message processing module confirms that one or more positions of the frame head part of medium access control frame in the said control frame are said business information flag; Said business information flag comprises type of service flag and professional details flag, and said message processing 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;
When said message frame is said management frames; Said message processing module confirms that one or more positions of the frame head part of medium access control frame in the said management frames are said business information flag; Said business information flag comprises type of service flag and professional details flag; Said message processing 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;
When said message frame is said common action frame; Said message processing module confirms that frame one or more positions partly of the medium access control frame of said common action frame are said business information flag; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Said message processing module is confirmed the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.
25. data communication equipment according to claim 24; It is characterized in that; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.
26. data communication equipment according to claim 24; It is characterized in that; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.
27., it is characterized in that said business is the transmit leg of a said message frame business current or that carry out At All Other Times according to each described data communication equipment in the claim 19 to 26.
28. a data communications method is characterized in that, comprising:
Receive message frame, comprise message frame flag and business information flag in the said message frame;
Confirm the type of said message frame and confirm to comprise said business information flag in the said message frame according to the value of said message frame flag, and confirm professional relevant information according to the value of said business information flag.
29. data communications method according to claim 28 is characterized in that, said message frame is broadcast message frame, multicast message frame or unicast messages frame, and/or said message frame is control frame, management frames or common action frame.
30. data communications method according to claim 29 is characterized in that, also comprises:
When said message frame is said control frame, confirm that one or more positions of the frame head part of medium access control frame in the said control frame are said message frame flag;
When said message frame is said management frames, confirm that one or more positions of the frame head part of medium access control frame in the said management frames are said message frame flag;
When said message frame is said common action frame, confirm that frame head part or one or more positions of frame part of the medium access control frame of said common action frame are said message frame flag.
31. data communications method according to claim 30; It is characterized in that; When said message frame is said control frame, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said control frame;
When said message frame is said management frames, confirm that one or more positions of type subdomain and subtype subdomain are said message frame flag in the frame control domain of frame head part of medium access control frame of said management frames;
When said message frame is said common action frame; Confirm one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of medium access control frame of said common action frame, or in the one or more positions in order 1 position field of frame part or other order position field one or more are said message frame flag.
32. data communications method according to claim 31 is characterized in that, also comprises:
When the value of said type subdomain and subtype subdomain is first value, confirm that said message frame is neighbours' sensing network discovery message frame, said neighbours' sensing network finds that message frame is used for carrying out simultaneously device discovery and service discovering.
33. data communications method according to claim 29 is characterized in that, also comprises:
When said message frame is said control frame; One or more positions of confirming the frame head part of medium access control frame in the said control frame are said business information flag; Said business information flag comprises type of service flag and professional details flag; 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;
When said message frame is said management frames; One or more positions of confirming the frame head part of medium access control frame in the said management frames are said business information flag; Said business information flag comprises type of service flag and professional details flag; 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;
When said message frame is said common action frame; Frame one or more positions partly of confirming the medium access control frame of said common action frame are said business information flag; Said business information flag comprises said type of service flag, action action frame flag and said professional details flag; Confirm the type of said business according to the value of said type of service flag; Confirm that according to the value of said action action frame flag the recipient can carry out relatedly with transmit leg, confirms the details of said business according to the value of said professional details flag when receiving said common action frame.
34. data communications method according to claim 33; It is characterized in that; When said message frame is said common action frame, confirm that one or more positions or the one or more positions in other order position field in order 1 position field of frame part of medium access control frame of said common action frame are said business information flag.
35. data communications method according to claim 33; It is characterized in that; When said message frame is said control frame; Said business information flag comprises 48 or other figure place bit, and said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said management frames; Said business information flag comprises 48 or other figure place bit; Said type of service flag comprises 8 or other figure place bit, and said professional details flag comprises all the other bits of said business information flag;
When said message frame is said common action frame; Said business information flag comprises 10 or other number byte; Said type of service flag comprises 1 or other number byte; Said action identification position comprises 1 byte or other number byte, and said professional details flag comprises 6 or other number byte of said business information flag.
36., it is characterized in that said business is the transmit leg of a said message frame business current or that carry out At All Other Times according to each described data communications method in the claim 28 to 35.
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