CN102547871B - Resource negotiation method and apparatus in a kind of D2D communication - Google Patents

Resource negotiation method and apparatus in a kind of D2D communication Download PDF

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Publication number
CN102547871B
CN102547871B CN201210026398.7A CN201210026398A CN102547871B CN 102547871 B CN102547871 B CN 102547871B CN 201210026398 A CN201210026398 A CN 201210026398A CN 102547871 B CN102547871 B CN 102547871B
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equipment
beacon frame
resource
beacon
discovery
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CN102547871A (en
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张向东
夏金环
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210026398.7A priority Critical patent/CN102547871B/en
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Priority to PCT/CN2013/070585 priority patent/WO2013117124A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses the resource negotiation method and apparatus in a kind of D2D communication, described method comprises: described current device receives the resource requirement information that other equipment send at current super frame, and described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described; Described current device, according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to.Adopt method or the equipment of the embodiment of the present invention, avoid the phenomenon having multiple equipment to compete for same resource, improve the efficiency of resource negotiation between equipment.

Description

Resource negotiation method and apparatus in a kind of D2D communication
Technical field
The present invention relates to communication technical field, particularly relate to the resource negotiation method and apparatus in a kind of D2D communication.
Background technology
Internet of Things refers to, by disposing the various equipment with certain perception, calculating, execution and communication capacity, obtains the information of physical world, and by real-time performance information transmission, collaborative and process, thus realize the interconnected network of people and thing, thing and thing.In brief, Internet of Things is exactly to realize interconnecting of people and thing, thing and thing.The application of Internet of Things comprises the various aspects such as intelligent grid, reading intelligent agriculture, intelligent transportation and environment measuring.D2D (Device-to-Device, equipment is to equipment) communicates, and as the one of Internet of Things application, mainly realizes the direct communication between two equipment.The D2D technology related to that communicates comprises: WPAN (Wireless Personal Area Network Communication Technologies, the wireless personal local area network communication technology), the short-distance wireless communication technology such as UWB (Ultra Wideband, ultra broadband), bluetooth (Bluetooth), Wifi (WiMAX).
For strengthening the control of mobile operator in Internet of Things field, associated companies has been had to carry out the research supporting D2D application in the mandate frequency range of operator, and actively promote in well-known normal structure 3GPP project verification, object uses the mandate frequency range of operator to support and realizes D2D application.Authorize frequency range to realize D2D communication in operator, the primary problem solved is exactly, when not affecting existing cellular communication, how to carry out device discovery, resource negotiation and Resourse Distribute.Existing UWB system provides a kind of method of device discovery, because UWB is a kind of fully distributed system, so realize device discovery and resource negotiation by regularly sending beacon frame in superframes between UWB equipment.Wherein, a UWB superframe, length is 65536 μ s, and be made up of 256 MAS (Medium Access Slot, medium access time slot), each MAS length is 256 μ s.The beginning of each UWB superframe is a BP (beacon period, beacon period), each beacon period can comprise several beacon slots (beacon slot), and the length of beacon slot can be 85 μ s, and the maximum length of BP can be 96 beacon slots.
Based on the said equipment discover method, resource distribution mode of the prior art comprises: a kind of is the mode of reserved resource, and the equipment being exactly reserved resource for it can send information in reserved resource; Another is exactly competitive way, is namely outside BP and above-mentioned reserved resource, adopts competitive way to send information.
Because equipment is when finding, do not consider the available resources problem sending beacon frame, the resource of existing cellular communication sends beacon frame arbitrarily, this will cause interference to existing cellular communication, even if equipment can realize finding, but also cannot learn resource reservation situation each other, this will cause equipment to be at war with resource occupation after discovery, or carry out complicated reserved resource negotiation process, when being applied directly in cellular communication environment, efficiency is lower; Further, if comprise directly about the obligate information of certain MAS in beacon frame, so, just likely there is resource reservation conflict, and need to carry out complicated clash handle process, the efficiency of resource negotiation between equipment also can be caused relatively low.
Summary of the invention
Resource negotiation method and apparatus during the embodiment of the present invention provides a kind of D2D to communicate, with by the improvement to resource negotiation process, promotes the efficiency of resource negotiation between equipment in D2D communication.
For solving the problems of the technologies described above, embodiments provide the resource negotiation method in a kind of D2D communication, the method comprises:
Described current device receives the resource requirement information that other equipment send at current super frame, and described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Described current device, according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to.
The embodiment of the present invention additionally provides the equipment in a kind of D2D communication, and this equipment comprises:
First receiver module, for receiving the resource requirement information that other equipment send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Computing module, for the quantity according to the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described equipment can be assigned to.
The embodiment of the present invention has the following advantages:
When the embodiment of the present invention carries out carrying out resource negotiation between equipment, by resource requirement information such as the quantity of the service priority of equipment, the beacon slot at beacon place and/or equipment application resource, the resource location that each equipment can be assigned to self can be calculated, each like this equipment transmission information on the resource location that oneself can be assigned to, just make resource negotiation efficiency all get a promotion, and then also can improve the efficiency of transmission information.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of method for discovering equipment embodiment 1 of the present invention;
Fig. 2 is the flow chart of method for discovering equipment embodiment 2 of the present invention;
Fig. 3 is the flow chart of resource negotiation embodiment of the method for the present invention;
Fig. 4 is the flow chart of step 301 in the flow chart shown in Fig. 3;
Fig. 5 is the flow chart of method for sending information embodiment of the present invention;
Fig. 6 is the structural representation of a kind of apparatus embodiments 1 of the present invention;
The structural representation of module 602 is found in embodiment shown in Fig. 6 that Fig. 7 is;
Fig. 8 is the structural representation of a kind of apparatus embodiments 2 of the present invention;
Fig. 9 is the structural representation of another kind of apparatus embodiments of the present invention;
Figure 10 is the structural representation of computing module 902 in the apparatus embodiments shown in Fig. 9;
Figure 11 is the structural representation of another apparatus embodiments of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In embodiments of the present invention, equipment unlike the prior art in the embodiment of the present invention, first from the base station of cellular communication or the operation of other equipment acquisition beacon frame available resources, and the content that the beacon frame used in the embodiment of the present invention comprises, beacon frame in the embodiment of the present invention is except comprising beacon transmitting apparatus mark, outside beacon reception device identification and beacon slot number, also comprise one or more in following field: beacon frame type identifies, master-slave communication device identification, beacon frame available resources position, type of service, Correspondent Node device identification, apply for the position that resource quantity and information send.Wherein, which field beacon frame comprises can be find mutually, carry out resource negotiation or the information of carrying out transmission and different according to the equipment participating in D2D communication.The equipment of D2D communication is communicated by the mandate frequency range of operator.
Wherein, beacon frame type identifies: the type that can identify beacon frame, can be " device discovery beacon frame ", " resource bid beacon frame " and " information sends and notifies beacon frame " etc.Wherein, the equipment participating in D2D communication can send the said equipment and find that beacon frame is to realize the discovery of miscellaneous equipment for beacon frame information equipment, or for the discovery of other designated equipment, after resource bid beacon frame then may be used for discovering device, this beacon frame is sent to consult available resources when needs transmission information, meanwhile, information sends notifies beacon frame and then can be used to refer in current super frame and have information to send, indicates receiving equipment to receive information on the resource location of correspondence.Visible different beacon frame type comprises the different information contents, also can meet functional requirements different in practical application.
It should be noted that, resource bid is carried out after equipment successfully finds, but equipment also can realize device discovery when receiving resource bid beacon frame, comprising the discovery to designated equipment; Equally, information transmission is notified beacon frame and is carried out on the successful basis of resource bid, but equipment also can realize device discovery or resource negotiation when receiving resource bid beacon frame.
Master-slave communication device identification: be used for identifying that to send the equipment of beacon frame be main equipment or from equipment.D2D communicating pair, whether no matter lose with base station and be connected, as long as communicate with master-slave mode, the equipment being in main status, be in from the equipment of status as from equipment if being main equipment.If do not communicated with master-slave mode, D2D communicating pair is equal, then do not distinguish master-slave equipment.Wherein, main equipment can obtain from the base station side of cellular communication or other main equipment side the available resources positional information sending beacon frame, also can oneself definition beacon frame available resources positional information, and can as required above-mentioned acquisition or the beacon frame available resources positional information of definition send to from equipment; Beacon frame available resources positional information can be obtained from the base station side of cellular communication or main equipment side from equipment, and can not oneself definition beacon frame available resources positional information.Master-slave equipment, before transmission beacon frame, all needs to obtain beacon frame available resources positional information.
Wherein, under following three kinds of scenes, the definition standard of master-slave equipment can be: when (1), all D2D equipment can be connected with cellular communications network base station, all devices can obtain beacon frame available resources positional information from cellular communication base stations side, can whether to select master slave communication and the master-slave role in master slave communication, determine that equipment is main equipment or from equipment; (2), when having part D2D equipment and base station to lose to be connected, losing with base station the equipment be connected can be from equipment, miscellaneous equipment can according to whether selecting master slave communication pattern, and the master-slave role in master-slave communication pattern, determines main equipment still from equipment; (3), when the equipment that all D2D communicate all lose with base station be connected, can according to certain rule, selection portion subset is as main equipment, such as select beacon slot be 0,1 or the equipment of other time slot as main equipment, and using equipment corresponding for remaining time slots as from equipment.It should be noted that, unless through presetting, be main equipment under the equipment default situations of participation D2D communication;
Beacon frame available resources position: the resource location that can send beacon frame can be illustrated with the form of bitmap (bitmap);
Type of service: the type of service being used for identifying the requirement of beacon transmitting apparatus, can represent that current device is carrying out any type of service, such as speech business, video traffic, business etc. of checking meter.It should be noted that, the type of service of equipment can pre-define priority.
Correspondent Node device identification: be used for unique identification Correspondent Node equipment, this Correspondent Node device identification, according to the type of beacon frame, arranges the mark of different Correspondent Node equipment;
Apply for resource quantity: represent the resource quantity that the transmitting apparatus of beacon frame is applied in next superframe.It should be noted that, to even things up, can limit in each super frame period, the quantity of the resource of each equipment application, think that miscellaneous equipment applies for that in same superframe resource retains chance;
The position that information sends: in instruction current super frame, information sends the resource location used.
It should be noted that, above-mentioned field, all might not comprise in the beacon frame of each type, can need to accept or reject according to function.Content included by beacon frame can be determined according to " beacon frame type mark " field.
Then the embodiment of the present invention in actual applications, available resources are defined as " super frame period ", and one " super frame period " is divided into " beacon period " and " data cycle ", the equipment participating in D2D communication can send various types of beacon frame, transmission information within " data cycle " within " beacon period ".Wherein, " super frame period " is not limited to a period of time in time domain, also can be all available resources in a period of time and/or one section of frequency range.Such as, can be all available time/frequency source block in a subframe in LTE (Long Term Evolution, Long Term Evolution) system; Equally, " beacon period " and " data cycle " is also not limited to a period of time in time domain, also can be one section of frequency range on frequency domain." beacon period " is divided into again some " beacon slot ", such as, can be one piece of running time-frequency resource that in LTE system, relative " beacon period " is less.
With reference to figure 1, in an embodiment of the invention, realize a kind of embodiment of the method for discovering equipment that the embodiment of the present invention provides, can comprise the following steps:
Step 101: receiving equipment receives the first device discovery beacon frame that other D2D equipment sends, and the parameter of described first device discovery beacon frame comprises: the first Correspondent Node device identification; Described first Correspondent Node device identification for representing time empty that beacon frame information equipment is in the device discovery procedure participating in described receiving equipment, is not the mark that empty Correspondent Node device identification is described receiving equipment.
In embodiments of the present invention, if other D2D equipment have sent device discovery beacon frame to current device, and the parameter of this device discovery beacon frame at least can comprise: Correspondent Node device identification; Correspondent Node device identification, for representing time empty that other equipment described are in the device discovery procedure participating in described current device, is not mark that empty described first Correspondent Node device identification is described current device.In this step, when this Correspondent Node device identification has indicated the mark of described receiving equipment, just can realize the discovery to designated equipment (being namely receiving equipment), or the response designated equipment sent before receiving equipment being found to request can be realized.
In actual applications, described device discovery beacon frame can also comprise master-slave communication device identification, and described active communication device identification can represent that transmitting apparatus finds that the equipment of beacon frame is main equipment or from equipment.Device discovery procedure, because the field included by device discovery beacon frame is different, also can be divided into the first device discovery subprocess and the second device discovery subprocess.In the first device discovery subprocess, transmitting apparatus finds that beacon frame 1 (is conveniently distinguished, the device discovery beacon frame sent in the first device discovery subprocess is defined as device discovery beacon frame 1, and the device discovery beacon frame sent in the second device discovery subprocess is defined as device discovery beacon frame 2) other equipment be main equipment, described device discovery beacon frame 1 specifically can comprise in this case: beacon frame type mark, master-slave communication device identification, beacon frame available resources position, Correspondent Node device identification and type of service; Wherein, beacon frame type mark instruction current beacon frame is device discovery beacon frame 1, and also, the device discovery procedure of current participation is the first device discovery subprocess; Master-slave communication device identification is then designated as main equipment; Beacon frame available resources position can send the resource of beacon frame with the instruction of bitmap form; And for Correspondent Node device identification: if instruction finds target device, or for the response of other device discovery request, so, this field is set to the mark of target device to be found, or sends the described mark finding the equipment of request; Otherwise Correspondent Node device identification is empty; Type of service: instruction transmitting apparatus finds the type of service required by other equipment of beacon frame.
And when main equipment sends described device discovery beacon frame 1, if not from equipment in network, that is: do not listen to " master-slave communication device identification " field in a network and be designated as beacon frame from equipment, or, when not needing in network to obtain the main equipment of beacon frame positional information from other main equipment, then can select main equipment and regularly send this beacon frame; Exist from equipment if had in network, namely, listen to " master-slave communication device identification " field in a network and be designated as beacon frame from equipment, or have when needing the main equipment obtaining beacon frame positional information from other main equipment to exist in network, selected main equipment continues to send this beacon frame.Above-mentioned " selected main equipment ", can choose according to established rule.Such as, when there is multiple main equipment in network, the main equipment that beacon slot number is less or larger can be selected; When there is not main equipment in network, equipment can with aspiration mode, or, agreement carries out changing role by some equipment (equipment that such as beacon slot is less or larger), convert main equipment to, then from the main equipment after conversion, select equipment as " selected main equipment ".
In the second device discovery subprocess, the field that " device discovery beacon frame 2 " that other equipment sends specifically comprises has: beacon frame type mark, master-slave communication device identification, Correspondent Node device identification and type of service.Wherein, it is device discovery beacon frame 2 that this beacon frame type mark is designated as current beacon frame, and also, the device discovery procedure of current participation is the second device discovery subprocess; Master-slave communication device identification is then from equipment or main equipment setting according to sending the equipment of beacon frame; And for Correspondent Node device identification: if instruction finds target, or the response of discovery request for miscellaneous equipment, so, this field is set to the mark finding target device, or sends the mark of this equipment of the request of discovery; Otherwise this mark is set to sky; Type of service is then set to the type of service indicating the requirement of beacon transmitting apparatus.
In the second device discovery subprocess, device discovery beacon frame 2 sends primarily of from equipment, and other equipment is found it, or finds designated equipment.And for main equipment, the chosen main equipment needing regular or lasting transmitting apparatus to find beacon frame 1 in the first device discovery subprocess, also outside transmission " device discovery beacon frame 1 ", can send this device discovery beacon frame 2; And the not chosen main equipment sending " device discovery beacon frame 1 ", can continue to send this device discovery beacon frame 2.
Step 102: receiving equipment realizes the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame.
Be directed to aforesaid receiving equipment, no matter receive the discovery that device discovery beacon frame 1 or device discovery beacon frame 2 can realize other equipment described according to field wherein.
Concrete, the Correspondent Node in described device discovery beacon frame is designated sky, described receiving equipment just achieves the discovery to described transmitting apparatus by the described device discovery beacon frame of reception.And if Correspondent Node mark is not empty, receiving equipment just needs to judge whether oneself once sent device discovery beacon frame to other equipment described, if not, then described receiving equipment finds beacon frame to other equipment Returning equipments described, instruction for response beacons frame transmitting apparatus finds the device discovery request of target, wherein, the Correspondent Node device identification in the device discovery beacon frame returned described in is the mark of other equipment described; If, then device discovery beacon frame described in receiving equipment direct basis realizes the discovery to other equipment described, namely the response that to be beacon frame that this receives be for the beacon frame sent before receiving equipment, the instruction initiated before just completing oneself finds the device discovery procedure of target.
From equipment for receiving equipment, or receiving equipment is the main equipment needing to obtain from other main equipment beacon frame available resources positional information, " beacon frame available resources position " information that receiving equipment also can carry according to this beacon frame, acquisition can send the resource location of beacon frame, then according to the beacon frame information that the miscellaneous equipment monitored sends, select a free timeslot, not by the resource that uses in beacon frame available resources, send the device discovery beacon frame of oneself, thus can allow other device discovery oneself.
It should be noted that, for the device discovery procedure that specifying in the said equipment discovery procedure finds target device (being namely the Correspondent Node represented by Correspondent Node identification field), transmitting apparatus finds the equipment Drequest of request, needs listen to the corresponding device discovery beacon frame of discovery target device Dresponse transmission responsively, just complete whole discovery procedure.Also can set in actual applications, if after equipment Drequest attempts sending the particular device discovery beacon frame of several times for equipment Dresponse, or in the some cycles after certain particular device finds beacon transmission, do not receive the response beacons frame of described discovery target device Dresponse, then think and find that target device Dresponse is not in its communication range.
In the present embodiment, when equipment finds, transmitting apparatus sends beacon frame, further comprises Correspondent Node device identification, this Correspondent Node device identification can realize the discovery of arbitrary equipment when being sky, not for this Correspondent Node device identification time empty just indicates designated equipment, when the mark of certain receiving equipment is identical with this Correspondent Node device identification, this receiving equipment returns to other equipment sending beacon frame the device discovery beacon frame that Correspondent Node device identification is set to these other device identifications again, just can realize the discovery procedure of designated equipment, also for next step resource negotiation process can save the time, thus follow-up carry out resource negotiation time raise the efficiency.
With reference to figure 2, in an embodiment of the invention, realize the another kind of embodiment of the method for discovering equipment that the embodiment of the present invention provides, can comprise the following steps:
Step 201: transmitting apparatus obtains beacon frame available resources positional information and super frame period information, and at least scan a beacon period, when described beacon period interscan is at least one beacon frame, enter step 202, when not scanning beacon frame within described beacon period, enter step 203.
Step 202: select the beacon slot that idle in described beacon period, and send the first device discovery beacon frame to other equipment in D2D communication on described beacon slot.
Step 203: select a beacon slot arbitrarily within beacon period, and the second device discovery beacon frame is sent to other equipment in D2D communication on described optional beacon slot.
In the present embodiment, transmitting apparatus is before transmission beacon frame, first beacon frame available resources positional information and super frame period information is obtained, main equipment can obtain beacon frame available resources positional information from cellular communications networks side or other main equipment side, or oneself definition beacon frame available resources positional information, and as required above-mentioned beacon frame available resources broadcast of position information to miscellaneous equipment; From equipment, beacon frame available resources positional information can be obtained from the network side of cellular communication or main equipment side.And at least scan a beacon period to obtain existing beacon message.If device scan is to one or more beacon frame, equipment selects an idle beacon slot to send the beacon frame of oneself in beacon period; Otherwise equipment can select arbitrarily a beacon slot to send the beacon frame of oneself within beacon period; The beacon of each equipment transmitting apparatus oneself on the beacon slot of oneself, other time slot receives the beacon that miscellaneous equipment sends.
Step 204: it is synchronous that other equipment described realize with described transmitting apparatus according to described first device discovery beacon frame or the second device discovery beacon frame.
If other equipment described are after receiving the first device discovery beacon frame or the second device discovery beacon frame, what also do not complete with D2D communication network is synchronous, then realize except discovery except completing for the transmitting apparatus of transmission first or second device discovery beacon frame, can also obtain with transmitting apparatus according to this beacon frame synchronous, such as, beacon frame time of reception is TRx, beacon frame time-gap number is SN, Beacon slot length is TS, so, the time started that can calculate beacon period is just: T=TRx-TS × SN.
In actual applications, need that synchronous if main equipment can not be synchronous with cellular network, and oneself does not define again the super frame period of oneself not necessarily just from equipment, just needs are synchronous with existing super frame period.Two main equipments also can communicate.
Step 205: other equipment described realize the discovery to other equipment described according to described first device discovery beacon frame or the second device discovery beacon frame.
Other equipment described find transmitting apparatus according to the first device discovery beacon frame received or the second device discovery beacon frame again.Concrete discovery procedure is introduced in embodiment 1 in detail, does not repeat them here.
Step 206: when the parameter of the described first or second device discovery beacon frame also comprises beacon frame available resources position, described beacon frame available resources position is used to indicate the current resource that can send beacon frame; Other equipment described, according to described first device discovery beacon frame, obtain the beacon frame available resources position that can send the 3rd device discovery beacon frame.
In the present embodiment, when the parameter in the described first or second device discovery beacon frame also comprises beacon frame available resources position, described beacon frame available resources position can indicate the current resource that can send beacon frame.
It should be noted that, in existence from the scene of equipment, if main equipment can be connected with base station, so transmitting apparatus finds that the main equipment of beacon frame just can obtain beacon frame available resources position from base station side; If main equipment can not be connected with base station, so main equipment or obtain beacon frame available resources positional information from other main equipment side, or beacon frame available resources position is set oneself.Main equipment sends to other main equipment beacon frame available resources position or as required from equipment; From the beacon frame available resources position that equipment sends based on main equipment, complete synchronous and available resources selection.
Step 207: receiving equipment is not returned the 3rd device discovery beacon frame by the resource location that uses in beacon frame available resources.
Receiving equipment can not returned the 3rd device discovery beacon frame by the resource location that uses in beacon frame available resources, to realize other equipment described to the discovery of described current device, wherein, the second communication opposite equip. in described 3rd device discovery beacon frame is designated the mark of other equipment described.
In addition, if receiving equipment is from equipment in the present embodiment, or need the main equipment obtaining beacon frame available resources positional information from other main equipment, receiving equipment also can according to " beacon frame available resources position " information, acquisition can send the resource location of beacon frame, and then according to the beacon frame information that the miscellaneous equipment monitored sends, select a free timeslot, not by the resource that uses in beacon frame available resources, send the beacon frame of oneself, thus miscellaneous equipment can be allowed to find oneself.
In the present embodiment, current device advanced line scanning before transmitting apparatus finds beacon frame, and what can realize with other equipment is synchronous, and can also realize on the basis that other equipment are found, find that beacon frame is to realize the discovery of other equipment to oneself to other equipment transmitting apparatus.
With reference to figure 3, in an embodiment of the invention, realize the resource negotiation method that the embodiment of the present invention provides, can comprise the following steps:
Step 301: current device receives the resource requirement information that other equipment send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described.
The present embodiment can be applied to the current device found mutually of partner networking D2D communication with on other equipment, the beacon frame that current device sends at other equipment of receiving after Gains resources demand information, just oneself can send the resource location of information according to the service priority of other equipment wherein and/or the beacon slot at other equipment beacon places and/or the quantity calculating of other equipment application resources.
Step 302: current device, according to the quantity of the service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to.
When the current device that finishing equipment has found needs to communicate with other equipment, can carry out resource negotiation by the mode of agreement, shown in figure 4, described step 302, specifically can comprise:
Step 401: current device according to the service priority of other equipment described and/or the beacon slot at other equipment beacon places described and/or other equipment application resources described quantity to have resource bid demand equipment sort; Described have resource bid demand equipment comprise described current device and other equipment described;
Wherein, D senderfor information transmitting apparatus, D receiverfor information receiving device, information is had to send all D of demand senderequipment, after getting resource requirement information, carries out resource negotiation according to following rule:
D senderafter Supervision hears all beacons, obtain the resource requirement information of oneself and neighbouring device, then, to resource requirement information according to service priority from high to low, the beacon slot at requesting service beacon place from big to small (or from small to large), apply for (or the from small to large) sequence from big to small of the quantity of resource, then the available resources in " the data cycle " of next superframe are distributed, and calculate the position of the resource that self can be assigned to.Such as, in all resource requirement information, the demand that service priority is higher, preferentially obtains Resourse Distribute; Under comparable service priority case, the demand priority of beacon slot less (greatly) obtains Resourse Distribute; Or under comparable service priority case, the demand priority of resource bid quantity comparatively large (little) obtains Resourse Distribute.So, D sendersort according to the equipment of above-mentioned priority to application resource, such as ranking results is: D 1, D 2..., D sender..., D n-1, D n, corresponding applied for resource is respectively: R 1, R 2..., R sender..., R n-1, R n.
It should be noted that, described current device can by receiving the resource bid beacon frame comprising the quantity of applied for resource, or sending the mode of notifying beacon frame by receiving the information comprising the quantity of applied for resource, obtaining the quantity of other equipment application resources described in described resource requirement information.
Step 402: calculate the resource that described current device can be assigned to according to the result of described sequence.
According to ranking results in step 401, D can be learnt senderthe resource that can take be exactly from the R started senderindividual resource, namely s is the sequence number of sequence.
Being understandable that, if equipment is by calculating, finding oneself can get applied for resource in " the data cycle " of a superframe, then in the beacon frame of next superframe, comprise the position of applying for the resource arrived; Otherwise equipment continues to send " resource request beacon frame " at " beacon period " relaying supervention of next superframe, continuation application resource.
To even things up, one-period can be set, make the priority of Resourse Distribute with service priority from small to large for order is distributed, beacon slot and apply for the quantity of resource, also can with certain cycle for priority of resource allocation conversion from small to large or be from big to small carried out in reference, or the priority of beacon slot can be carried out in the mode of cyclic shift, ratio is if any N number of beacon slot, first time is with " N-1, N-2, ..., 1, 0 " be priority orders, second time is with " N-2, ..., 1, 0, N-1 " be priority orders, circulation is gone down successively.
Resource bid process in the present embodiment also can be divided into first resource application subprocess and Secondary resource application subprocess according to the difference of the resource bid beacon frame sent, in first resource application subprocess, " the first resource application beacon frame " that send comprise beacon frame type mark, master-slave communication device identification, beacon frame available resources position, Correspondent Node device identification, type of service and apply for resource quantity; Wherein, beacon frame type mark: be used to indicate as " first resource application beacon frame "; Master-slave communication device identification then according to current device be from equipment or main equipment setting; Beacon frame available resources position then can send the resource of beacon frame with the instruction of bitmap form; Correspondent Node device identification then indicates application resource to carry out the mark of the opposite equip. communicated; Type of service: the type of service that instruction beacon transmitting apparatus (current device) requires; Apply for that resource quantity is used to indicate the resource quantity of application.
This first resource application beacon frame can by needing " the selected main equipment " that send " device discovery beacon frame 1 ", and the transmission when needs carry out resource bid, to carry out resource bid.
Accordingly, Secondary resource application subprocess then sends " Secondary resource application beacon frame ", comprise beacon frame type mark, master-slave communication device identification, Correspondent Node device identification, type of service and apply for resource quantity; Wherein, beacon frame type mark is designated as " Secondary resource application beacon frame "; Master-slave communication device identification then according to current device be from equipment or main equipment setting; Correspondent Node device identification then indicates application resource to carry out the mark of the opposite equip. communicated; Type of service then indicates the type of service of beacon transmitting apparatus requirement; Apply for that resource quantity is used to indicate the resource quantity of application.
This Secondary resource application beacon frame can by needing " the selected main equipment " that send " device discovery beacon frame 1 ", when needs carry out resource bid, and when not needing to send " device discovery beacon frame 1 ", sending this Secondary resource application beacon frame and carrying out resource bid; Main equipment outside above-mentioned " selected main equipment ", and from equipment, when needs carry out resource bid, this Secondary resource application beacon frame can be sent and carry out resource bid.
It should be noted that, the resource bid beacon frame application sent in the present embodiment be resource in next superframe.Also the equipment namely sending resource bid beacon frame applies for resource by sending " resource bid beacon frame " in the current superframe, and the resource of request for utilization in the next superframe (if resource bid is successfully talked about) sends information, if and equipment does not apply for resource, next superframe then can continuation application resource.
In the present embodiment, by realizing the negotiation two equipment found carrying out resource bid, can simplified apparatus find after resource negotiation process, and because each equipment is all the resource negotiation carried out based on the resource bid situation of oneself and other equipment, so can the efficiency of resource negotiation between raising equipment.
With reference to figure 5, in an embodiment of the invention, realize the method for sending information that the embodiment of the present invention provides, can comprise the following steps:
Step 501: described current device receives the resource requirement information that other equipment send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
The present embodiment is applied to the current device found mutually of partner networking D2D communication with on other equipment, and described current device is that equipment needing transmission information.
Step 502: described current device, according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to;
Step 503: in the next superframe of described current super frame, described current device sends information transmission to other equipment described and notifies beacon frame, described information sends the position of notifying beacon frame and comprising information transmission, and the position that described information sends is used to indicate the resource location of the current use of described current device.
After described current device resource bid success, this current device just can send information in the resource of application.This information process of transmitting also because information sends the difference of notifying beacon frame, and is divided into the first information to send subprocess and the second information transmission subprocess, and wherein, information transmission is notified beacon frame and is used for having information to send in notice receiving equipment current super frame.
Send in subprocess at the described first information, the first information of transmission sends notifies beacon frame and comprises: beacon frame type mark, master-slave communication device identification, beacon frame available resources position, Correspondent Node device identification, type of service, apply for the position of resource quantity and information transmission; Wherein, beacon frame type mark is designated as " first information sends and notifies beacon frame "; Master-slave communication device identification then according to equipment be from equipment or main equipment setting; Beacon frame available resources position bitmap form can indicate the resource that can send beacon frame; The mark of Correspondent Node device identification then indication information receiving equipment; Type of service then indicates the type of service of beacon transmitting apparatus requirement; Apply for resource quantity: if information transmitting apparatus information is not sent, this field is set to the quantity of the resource of information transmitting apparatus continuation application.Otherwise if information transmitting apparatus information is sent, this field puts sky, show that next superframe information transmitting apparatus no longer applies for resource; The position that information sends then indication information sends the original position of the resource used.
Above-mentioned first information transmission notifies beacon frame by " the selected main equipment " that need to send " device discovery beacon frame 1 ", sends when needs information of carrying out sends and notifies, and is used for carrying out information transmission and notifies.
Send in subprocess in above-mentioned second information, " the second information sends and notifies beacon frame " of transmission comprises: beacon frame type mark, master-slave communication device identification, Correspondent Node device identification, type of service, apply for the position of resource quantity and information transmission; Wherein, beacon frame type mark is designated as " the second information sends and notifies beacon frame "; Master-slave communication device identification then according to transmitting apparatus be from equipment or main equipment setting; The mark of Correspondent Node device identification then indication information receiving equipment; Type of service then indicates the type of service of beacon transmitting apparatus requirement; Apply for resource quantity: if information transmitting apparatus information is not sent, this field is set to the quantity of the resource of information transmitting apparatus continuation application.Otherwise if information transmitting apparatus information is sent, this field puts sky, show that next superframe information transmitting apparatus no longer applies for resource; The position that information sends then indication information sends the position of presently used resource.
Above-mentioned second information sends notifies beacon frame by " the selected main equipment " that need to send " device discovery beacon frame 1 ", needs carry out information send notify time, and do not need send " device discovery beacon frame 1 " time, send this second information send notify beacon frame carry out information send notify; Main equipment outside above-mentioned " selected main equipment ", and from equipment, needs information of carrying out send notify time, send this second information and send and notify beacon frame information of carrying out and send and notify.
Other equipment described can receive information on the resource location of described current use.Reception information is sent to the receiving equipment D notifying beacon frame receiver; complete all beacon reception within the beacon period of a superframe after; if receive " information send notify beacon frame " that " Correspondent Node device identification " is set to the mark of self, then the resource sending " the data cycle " of " position that information sends " item instruction of notifying in beacon frame in this information gets on reception information.Certainly, receiving equipment also after receiving " Correspondent Node device identification " and being set to " the resource bid beacon frame " of the mark of self, can do necessary preparation, so that for better to receive information in next superframe.
Method for sending information described in the present embodiment carries out based on resource negotiation, the problem that information transmitting efficiency that in prior art, between equipment, competitive resource causes is lower can well be solved, and because the resource that aforesaid resource negotiation is applied for based on equipment self is carried out, also information process of transmitting can be made relatively simple, improve the efficiency that between equipment, information sends.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
Corresponding with the method for discovering equipment that the invention described above embodiment provides, see Fig. 6, the embodiment of the present invention additionally provides a kind of structural representation of apparatus embodiments, and described equipment specifically can comprise:
Second receiver module 601, for receiving the first device discovery beacon frame of other equipment transmission participating in described D2D communication, the parameter of described first device discovery beacon frame comprises: the first Correspondent Node device identification; Described first Correspondent Node device identification, for representing time empty that other equipment described are in the device discovery procedure participating in described receiving equipment, is not mark that empty described first Correspondent Node device identification is described receiving equipment; And
Find module 602, for realizing the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame.
When described master-slave communication device identification is empty, described discovery module 602 specifically may be used for: by receiving described first discovery of device discovery beacon frame realization to other equipment described.
In actual applications, described discovery module 602 can comprise:
Judging submodule 701, once sending the second device discovery beacon frame to other equipment described for judging whether;
Return submodule 702, for when the result of described judge module is no, the 3rd device discovery beacon frame is returned to other equipment described, to realize other equipment described to the discovery of described receiving equipment, wherein, the second communication opposite equip. in described 3rd device discovery beacon frame is designated the mark of other equipment described;
Find submodule 703, for when the result of described judge module is for being, described in direct basis, the first device discovery beacon frame realizes the discovery to other equipment described.
The equipment sent when equipment described in the present embodiment finds sends beacon frame, further comprises master-slave communication device identification and Correspondent Node device identification, for representing that the current equipment carrying out device discovery is main equipment and from equipment, and also directly can carry out device discovery procedure by the setting of Correspondent Node device identification, therefore with method for discovering equipment of the prior art, for next step resource negotiation process can save the time, thus follow-up carry out resource negotiation time raise the efficiency.
Shown in figure 8, be the structural representation of the apparatus embodiments 2 corresponding with method for discovering equipment, the equipment described in the present embodiment specifically can comprise:
Scan module 801, at least scanning a beacon period.
First selects module 802, for when scanning beacon period, selects the beacon slot that idle in described beacon period.
Second selects module 803, for when not scanning described beacon period, within described beacon period, selects a beacon slot arbitrarily.
Send beacon frame module 804, for finding beacon frame to other equipment transmitting apparatus in current Internet of Things on described beacon slot; Or, described optional beacon slot finds beacon frame to other equipment transmitting apparatus in current Internet of Things.
Second receiver module 601, for receiving the first device discovery beacon frame of other equipment transmission participating in described D2D communication, the parameter of described first device discovery beacon frame comprises: the first Correspondent Node device identification; Described first Correspondent Node device identification, for representing time empty that other equipment described are in the device discovery procedure participating in described receiving equipment, is not mark that empty described first Correspondent Node device identification is described receiving equipment.
Find module 602, for realizing the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame.
Be from equipment at described receiving equipment, and described not completing with current D2D synchronous from equipment, can also comprise:
Synchronization module 805, synchronous for what realize with other equipment described according to described device discovery beacon frame.
When the parameter of described device discovery beacon frame also comprises beacon frame available resources position, described beacon frame available resources position is used to indicate the current resource that can send beacon frame; Return submodule then can comprise:
Gains resources position submodule 806, for the first device discovery beacon frame sent according to other equipment monitored, obtains the position that can send the beacon frame available resources of the 3rd device discovery beacon frame;
Send submodule 807, in beacon frame available resources not by the resource location used, select free timeslot send described 3rd device discovery beacon frame.
In the present embodiment, current device advanced line scanning before transmitting apparatus finds beacon frame, and what can realize with other equipment is synchronous, and can also realize on the basis that other equipment are found, find that beacon frame is to realize the discovery of other equipment to oneself to other equipment transmitting apparatus.
Corresponding with the resource application method carried out between the equipment found mutually, shown in figure 9, the embodiment of the present invention additionally provides the structural representation of another kind of equipment, and this equipment is the current device that partner networking D2D communication has been found that other equipment, specifically can comprise:
First receiver module 901, for receiving the resource requirement information that other equipment of having been found that send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Wherein, described first receiver module 901, specifically can comprise: receive submodule, sends notify beacon frame for receiving resource bid beacon frame or information; Gains resources quantity submodule, notifies in beacon frame for sending from described resource bid beacon frame or information the quantity obtaining other equipment application resources described in described resource requirement information.
Computing module 902, for the quantity according to the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described equipment can be assigned to.
Described computing module 902 specifically can by receiving the resource bid beacon frame comprising the quantity of applied for resource, or by receiving the mode of the information transmission beacon frame comprising the quantity of apply for resource, obtain in described resource requirement information apply for the quantity of resource.
In actual applications, described computing module 902 can comprise:
Sorting sub-module 1001, for sorting to there being the equipment of resource bid demand according to the quantity of the service priority of other equipment described and/or the beacon slot at other equipment beacon places described and/or other equipment application resources described; Described have the equipment of resource bid demand to comprise described current device and other equipment described.
Calculating sub module 1002, for calculating the resource that described current device can be assigned to according to the result of described sequence.
In the present embodiment, because the resource negotiation that current device carries out based on the resource bid situation of oneself and neighbouring device, conflict so can not produce with other equipment in resource bid process, can the efficiency of resource negotiation between raising equipment.
Corresponding with the aforesaid method for sending information carried out between the equipment had been found that, with reference to Figure 11, the embodiment of the present invention additionally provides the structural representation of another apparatus embodiments, specifically can comprise:
First receiver module 901, for receiving the resource requirement information that other equipment of having been found that send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Computing module 902, for the quantity according to the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described equipment can be assigned to.
Sending module 1101, for in the next superframe of described current super frame, send information transmission to other equipment described and notify beacon frame, described information sends the position of notifying beacon frame and comprising information transmission, and the position that described information sends is used to indicate the resource location of the current use of described current device.
Equipment described in the present embodiment carries out information transmission based on aforesaid resource negotiation, the problem that information transmitting efficiency that in prior art, between equipment, competitive resource causes is lower can well be solved, and because the resource that aforesaid resource negotiation is applied for based on equipment self is carried out, also information process of transmitting can be made relatively simple, improve the efficiency that between equipment, information sends.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For equipment class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Also it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Resource negotiation method and apparatus during a kind of D2D provided the embodiment of the present invention above communicates is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment is just for helping method and the thought thereof of understanding the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (12)

1. the resource negotiation method in D2D communication, it is characterized in that, the method comprises:
The resource requirement information that other equipment that current device receives discovery mutually send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Described current device, according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to; Described current device, according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described current device can be assigned to and comprises:
Sort to there being the equipment of resource bid demand according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described; Described have the equipment of resource bid demand to comprise described current device and other equipment described; The resource that described current device can be assigned to is calculated according to the result of described sequence.
2. method according to claim 1, is characterized in that, described current device receives the resource requirement information that other equipment send at current super frame, comprising:
Described current device receives resource bid beacon frame or beacon frame is notified in information transmission;
Described current device sends from described resource bid beacon frame or information notifies beacon frame the quantity obtaining other equipment application resources described in described resource requirement information.
3. the method according to any one of claim 1-2, is characterized in that, receives other equipment before the resource requirement information that current super frame sends at described current device, and described current device finds other equipment described in the following way:
Described current device receives the first device discovery beacon frame that other equipment sends, and the parameter of described first device discovery beacon frame comprises: the first Correspondent Node device identification; Described first Correspondent Node device identification, for representing time empty that other equipment described are in the device discovery procedure participating in described current device, is not mark that empty described first Correspondent Node device identification is described current device;
Described current device realizes the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame.
4. method according to claim 3, is characterized in that, described current device realizes the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame, comprising:
Current device judges whether once to send the second device discovery beacon frame to other equipment described;
If not, then described current device returns the 3rd device discovery beacon frame to other equipment described, to realize other equipment described to the discovery of described current device, wherein, the second communication opposite equip. in described 3rd device discovery beacon frame is designated the mark of other equipment described;
If so, then described current device realizes discovery to other equipment described according to described first device discovery beacon frame.
5. method according to claim 4, is characterized in that, the parameter of described first device discovery beacon frame also comprises beacon frame available resources position, and described beacon frame available resources position is used to indicate the current resource that can send beacon frame; Then described current device returns the 3rd device discovery beacon frame to other equipment described and comprises:
Current device, according to described first device discovery beacon frame, obtains the position that can send the beacon frame available resources of the 3rd device discovery beacon frame;
Not by the resource location that uses in beacon frame available resources position, current device selects free timeslot to send described 3rd device discovery beacon frame.
6. method according to claim 1, is characterized in that, also comprises:
In the next superframe of described current super frame, described current device sends information transmission to other equipment described and notifies beacon frame, described information sends the position of notifying beacon frame and comprising information transmission, and the position that described information sends is used to indicate the resource location of the current use of described current device.
7. the equipment in D2D communication, it is characterized in that, this equipment comprises:
First receiver module, for the resource requirement information that other equipment receiving discovery mutually send at current super frame, described resource requirement information comprises the quantity of the described service priority of other equipment, the beacon slot at other equipment beacon places described and/or other equipment application resources described;
Computing module, for the quantity according to the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described, calculates the resource location that described equipment can be assigned to; Described computing module comprises:
Sorting sub-module, for sorting to there being the equipment of resource bid demand according to the quantity of the service priority of other equipment described, the beacon slot at other equipment beacon places described and/or other equipment application resources described; Described have the equipment of resource bid demand to comprise described computing module place current device and other equipment described; Calculating sub module, for calculating the resource that described current device can be assigned to according to the result of described sequence.
8. equipment according to claim 7, is characterized in that, described first receiver module, comprising:
Receive submodule, send notify beacon frame for receiving resource bid beacon frame or information;
Gains resources quantity submodule, notifies in beacon frame for sending from described resource bid beacon frame or information the quantity obtaining other equipment application resources described in described resource requirement information.
9. the equipment according to any one of claim 7-8, is characterized in that, also comprises discovery device, and described discovery device comprises:
Second receiver module, for receiving the first device discovery beacon frame that other equipment sends, the parameter of described first device discovery beacon frame comprises: the first Correspondent Node device identification; Described first Correspondent Node device identification, for representing time empty that other equipment described are in the device discovery procedure participating in described current device, is not mark that empty described first Correspondent Node device identification is described current device;
Find module, for realizing the discovery to other equipment described according to the first Correspondent Node device identification in described first device discovery beacon frame.
10. equipment according to claim 9, is characterized in that, described discovery module comprises:
Judging submodule, once sending the second device discovery beacon frame to other equipment described for judging whether;
Return submodule, for when the result of described judgement submodule is no, the 3rd device discovery beacon frame is returned to other equipment described, to realize other equipment described to the discovery of described current device, wherein, the second communication opposite equip. in described 3rd device discovery beacon frame is designated the mark of other equipment described;
Finding submodule, for when the result of described judgement submodule is for being, realizing the discovery to other equipment described according to described first device discovery beacon frame.
11. equipment according to claim 10, is characterized in that, the parameter of described first device discovery beacon frame also comprises beacon frame available resources position, and described beacon frame available resources position is used to indicate the current resource that can send beacon frame; The described submodule that returns comprises:
Gains resources position submodule, for according to the first device discovery beacon frame, obtains the position that can send the beacon frame available resources of the 3rd device discovery beacon frame;
Send submodule, in beacon frame available resources position not by the resource location used, select free timeslot send described 3rd device discovery beacon frame.
12. equipment according to claim 7, is characterized in that, also comprise:
Sending module, for in the next superframe of described current super frame, send information transmission to other equipment described and notify beacon frame, described information sends the position of notifying beacon frame and comprising information transmission, and the position that described information sends is used to indicate the resource location of the current use of described current device.
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