CN110392076A

CN110392076A - A kind of equipment is to any D2X method, apparatus communicated and storage medium

Info

Publication number: CN110392076A
Application number: CN201810355901.0A
Authority: CN
Inventors: 刘艳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Cloud Computing Technologies Co Ltd
Priority date: 2018-04-19
Filing date: 2018-04-19
Publication date: 2019-10-29
Anticipated expiration: 2038-04-19
Also published as: CN110392076B; WO2019201257A1

Abstract

A kind of equipment is to any D2X method, apparatus communicated and storage medium, which comprises server obtains mapping relations, and the mapping relations include the mapping relations of geographical location information and pseudo- multicast address；The D2X terminal legal to identity sends the mapping relations, so that the D2X terminal determines target puppet multicast address according to current location information and the mapping relations and the corresponding multicast group of the target puppet multicast address is added.By using this programme, it can guarantee that suitable multicast group is added in D2X terminal under the premise of improving multicast group safety.

Description

A kind of equipment is to any D2X method, apparatus communicated and storage medium

Technical field

This application involves vehicle networking technical fields more particularly to a kind of equipment to any D2X method, apparatus communicated and to deposit Storage media.

Background technique

In the car networking communications field, car networking carries out intelligent information for vehicle and any (such as people, vehicle, road, backstage etc.) Exchange and shared, car networking mainly include vehicle communicated to vehicle (vechicle to vechicle, V2V), vehicle to infrastructure (vechicle to infrastructure, V2I) is communicated, vehicle to network (vechicle to network, V2N) communicates, Vehicle is communicated to cloud (vechicle to cloud, V2C), vehicle to people (vechicle to people, V2P) communication waits vehicles to arrive The arbitrarily scene that interconnects of (vechicle to X, V2X) communication.Such as in V2V communication, vehicle can be in certain geographical model The status information that periodically broadcasts itself is enclosed, to reduce V2V message number and improving the range timeliness of V2V message, now Efficient propagation efficiency is mainly realized using multicasting technology.Specifically, vehicle is based in geographic range adjacent thereto To the V2V message of V2V multicast group sending cycle, vehicle will receive V2V message and then need that V2V multicast group is first added multicast address. When V2V multicast group is added in vehicle, need to server registration, and the location information of vehicle itself is sent to server, by taking Business device will return to the vehicle with the matched multicast address of the location information.Later, the vehicle can by the multicast address to The corresponding V2V multicast group of the multicast address is added in gateway requests, and then subsequent can receive and dispatch V2V in the V2V multicast group and disappear Breath.

As it can be seen that server is the geographical location based on vehicle when matching multicast address in current mechanism, and vehicle Mobility is stronger, and server needs to identify the geographical location of vehicle variation at any time, and matches to vehicle feedback and geographical location Multicast address.As it can be seen that server rapidly, accurately can not provide suitable multicast address for vehicle, to not can guarantee The vehicle is normally carried out V2V communication.

Summary of the invention

This application provides a kind of equipment to any D2X method, apparatus communicated and storage medium, is able to solve existing skill The lower problem of the accuracy for the multicast address that vehicle of the server into V2V communication provides in art.

The application first aspect provides a kind of method that equipment is communicated to any D2X, and the method is executed by server, institute The method of stating includes:

Mapping relations are obtained, the mapping relations include the mapping relations of geographical location information and pseudo- multicast address；

The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current location information and the mapping Relationship determines target puppet multicast address and the corresponding multicast group of the target puppet multicast address is added.

Compared with current mechanism, in the embodiment of the present application, server adds the multicast address in initial mapping relationship Close camouflage processing, obtains the mapping relations of a camouflage, so that D2X terminal can not perceive true multicast address, but still Can according to the location information of itself from the mapping relations one target puppet multicast address of decision, and according to the mesh of decision It marks pseudo- multicast address and multicast group is added, and D2X terminal can not carry out malicious dissemination in the multicast group being added.In addition, for The same D2X business of same geographic area deployment, server only need to store the initial of a location information and multicast address Mapping relations, it is subsequent that initial mapping relationship is encrypted and issued respectively for different D2X terminals, so as to To reduce data storage load.Location information in mapping relations is divided previously according to the longitude and latitude of cellular network or GPS , be not needed upon real-time position information of the D2X terminal dynamic to server update D2X terminal, server do not need yet for D2X Terminal-decision multicast address.But decision multicast address is voluntarily gone according to the location information of itself by D2X terminal, and then most The accuracy of whole multicast address is higher, also reduces the computational load of server.

In a kind of possible design, the acquisition mapping relations, comprising:

To the initial multiast address encryption in initial mapping relationship, pseudo- multicast address is obtained, to obtain the mapping relations.

In a kind of possible design, the pseudo- multicast address in the mapping relations is obtained according to the encryption of one of following item:

The identity information of the D2X terminal, at the first time stamp and initial multiast address；

Alternatively, identity information and the initial multiast address of the D2X terminal；

Alternatively, stabbing and initial multiast address at the first time.

In a kind of possible design, pseudo- multicast address in the mapping relations is according to D2X business information and initial more Address encryption is broadcast to obtain.

In a kind of possible design, after the D2X terminal legal to identity sends the mapping relations, the side Method further include:

The first message from the D2X terminal is received from the gateway, it is pseudo- more that the first message carries the target Broadcast address；

The target puppet multicast address is decrypted, target multicast address is obtained；

The target multicast address is sent to the gateway.

In a kind of possible design, the first message further includes the first identity information of the D2X terminal and described The target mapping relations of D2X terminal selection；It is described that the first message is decrypted, comprising:

The target mapping relations are decrypted, the second identity of the D2X terminal carried in the target mapping relations is obtained Information；

It is described that the target puppet multicast that decryption obtains is sent to the gateway after the decryption to the first message Before address, method further include:

When determining that first identity information matches with second identity information that decryption obtains or is consistent, institute is determined It is legal to state D2X terminal.

In a kind of possible design, the geographical location information in the mapping relations includes the physical location of D2X terminal Or the random number of the physical location of instruction D2X terminal.

Second aspect, the application also provide a kind of method that equipment is communicated to any D2X, and the method is executed by gateway, The described method includes:

From the server receive mapping relations, the mapping relations include geographical location information and puppet multicast address reflects Penetrate relationship；

The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current location information and the mapping Relationship determines target puppet multicast address；

First message is received from the D2X terminal, the first message includes the target puppet multicast address；

Authorize the D2X terminal that the corresponding multicast group of the target puppet multicast address is added.

Compared with current mechanism, in the embodiment of the present application, the mapping relations that gateway is handed down to D2X terminal are by server Encryption camouflage processing, so D2X terminal can not perceive true multicast address in the mapping relations, but still being capable of root According to the location information of itself from the mapping relations one target puppet multicast address of decision, getting D2X Terminal-decision It authorizes D2X terminal that multicast group is added after target puppet multicast address, can either guarantee that D2X is added multicast group and carries out D2X communication, again Can be realized D2X terminal can not carry out the purpose of malicious dissemination in the multicast group being added.

In a kind of possible design, after the reception first message from the D2X terminal, the method also includes:

D2X message is received from the D2X terminal, the destination address of the D2X message is updated to the target puppet multicast Address, and the D2X message after updating destination address is sent into the multicast group.

In a kind of possible design, after the reception first message from the D2X terminal, the authorization D2X Terminal is added before the corresponding multicast group of the target puppet multicast address, further includes:

When the server and the gateway are in same trust domain, decryption obtains target multicast from the first message Address；

Alternatively, Xiang Suoshu server sends described first and disappears when the server and the gateway are in different trust domain Breath, the target multicast address obtained from the server receiving and deciphering.

In a kind of possible design, the first message further includes the first identity information of the D2X terminal and described The target mapping relations of D2X terminal selection；After the reception first message from the D2X terminal, the authorization D2X Terminal is added before the corresponding multicast group of the target puppet multicast address, method further include:

The third aspect, the application also provide a kind of method that equipment is communicated to any D2X, and the method is held by D2X terminal Row, which comprises

Mapping relations are obtained from server, the mapping relations include the mapping pass of geographical location information and pseudo- multicast address System；

Target puppet multicast address is determined according to current location information and the mapping relations, is sent described in carrying to gateway The first message of target puppet multicast address；

After the corresponding multicast group of the target puppet multicast address is added, Xiang Suoshu gateway sends D2X message, with to described more It broadcasts and sends the D2X message in group.

Compared with current mechanism, in the embodiment of the present application, what the mapping relations that D2X terminal obtains were pretended, so D2X terminal Do not need to perceive true multicast address, but still can according to the location information of itself from the mapping relations decision one A target puppet multicast address, and multicast group is added according to the target puppet multicast address of decision, and D2X terminal can not be added Multicast group in carry out malicious dissemination.Location information in mapping relations is drawn previously according to the longitude and latitude of cellular network or GPS Point, D2X terminal does not need dynamically to the real-time position information of server update itself, and D2X terminal can be according to itself position Confidence breath voluntarily removes decision multicast address, and then the accuracy of final multicast address is higher, also reduces the transmission of message.

Alternatively, stabbing and initial multiast address at the first time.

In a kind of possible design, after the acquisition mapping relations from server, the method also includes:

Second message is received from server, the second message is used to indicate the mapping relations of update；

Third message is sent to D2X management platform, and the third message carries the signing messages of the server and described The identification information of server；

The first response is received from D2X management platform, first response, which is used to indicate, sends the second message Server authentication passes through；

The 4th message is sent to the server, the 4th message is used to request the mapping relations of the update；

The mapping relations of the update are received from the server, update the mapping relations locally saved.

Fourth aspect, the application provide a kind of server, and the server includes:

Processing module, for obtaining mapping relations, the mapping relations include geographical location information and pseudo- multicast address Mapping relations；

Transceiver module, for sending the mapping relations that the processing module obtains to D2X terminal, so that the D2X terminal Target puppet multicast address is determined according to current location information and the mapping relations and the target puppet multicast address is added Corresponding multicast group.

In a kind of possible design, the processing module is used for:

Alternatively, stabbing and initial multiast address at the first time.

In a kind of possible design, the processing module is sent in the transceiver module to the legal D2X terminal of identity After the mapping relations, it is also used to:

The first message from the D2X terminal, the first message are received from the gateway by the transceiver module Carry the target puppet multicast address；

The target multicast address is sent to the gateway by the transceiver module.

In a kind of possible design, the first message further includes the first identity information of the D2X terminal and described The target mapping relations of D2X terminal selection；The processing module is used for:

After the processing module decrypts the first message, decrypted in the transceiver module to gateway transmission Before the target puppet multicast address arrived, it is also used to:

5th aspect, the application provide a kind of gateway, and the gateway includes:

Transceiver module, for receiving mapping relations from the server, the mapping relations include geographical location information with The mapping relations of pseudo- multicast address；The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current position Information and the mapping relations determine target puppet multicast address；First message, the first message are received from the D2X terminal Including the target puppet multicast address；

Processing module, for authorizing the D2X terminal that the corresponding multicast group of the target puppet multicast address is added.

In a kind of possible design, the processing module receives first from the D2X terminal in the transceiver module and disappears After breath, it is also used to:

D2X message is received from the D2X terminal by the transceiver module；

The destination address of the D2X message is updated to the target puppet multicast address, by the transceiver module to institute It states and sends the D2X message after updating destination address in multicast group.

In a kind of possible design, the processing module receives first from the D2X terminal in the transceiver module and disappears After breath, authorizes the D2X terminal to be added before the corresponding multicast group of the target puppet multicast address, is also used to:

Alternatively, when the server and the gateway are in different trust domain, by the transceiver module to the service Device sends the first message, the target multicast address obtained by the transceiver module from the server receiving and deciphering.

In a kind of possible design, the first message further includes the first identity information of the D2X terminal and described The target mapping relations of D2X terminal selection；The processing module receives first from the D2X terminal in the transceiver module and disappears After breath, the authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, is also used to:

6th aspect, the application provide a kind of D2X terminal, and the D2X terminal includes:

Transceiver module, for obtaining mapping relations from server, the mapping relations include that geographical location information and puppet are more Broadcast the mapping relations of address；

Processing module passes through for determining target puppet multicast address according to current location information and the mapping relations The transceiver module sends the first message for carrying the target puppet multicast address to gateway；

The transceiver module is also used to the processing module and controls the D2X terminal addition target puppet multicast address pair After the multicast group answered, Xiang Suoshu gateway sends D2X message, to send the D2X message into the multicast group.

Alternatively, stabbing and initial multiast address at the first time.

In a kind of possible design, the transceiver module is also used to after server acquisition mapping relations:

The another aspect of the application provides a kind of computer installation, and the computer installation includes:

At least one processor, memory and transceiver；

Wherein, the memory is used to call the program in the memory for storing program code, the processor Code executes the operation executed in above-mentioned first aspect by the server, or executes in second aspect by the gateway The operation of execution, or execute the operation executed in the third aspect by the terminal.

Wherein, which can also be replaced with receiver and transmitter, can be same or different physical entity. When for identical physical entity, transceiver may be collectively referred to as.The memory can integrate in the processor, can also be with It is provided separately with the processor.

The another aspect of the application provides a kind of computer storage medium, and it includes instructions, when run on a computer, So that computer executes the operation executed in above-mentioned first aspect by the server, or execute in second aspect by described The operation that gateway executes, or execute the operation executed in the third aspect by the terminal.

The another aspect of the application provides a kind of computer program product comprising instruction, when it runs on computers When, so that computer executes the operation executed in above-mentioned first aspect by the server, or execute in second aspect by institute The operation of gateway execution is stated, or executes the operation executed in the third aspect by the terminal.

Detailed description of the invention

Fig. 1 is a kind of configuration diagram of the communication system in the embodiment of the present application；

Fig. 2 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 3 a is a kind of schematic diagram of mapping relations in the embodiment of the present application；

Fig. 3 b is in the embodiment of the present application be D2X terminal selection target mapping relations a kind of flow diagram；

Fig. 4 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 5 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 6 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 7 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 8 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Fig. 9 is a kind of flow diagram of the method for D2X communication in the embodiment of the present application；

Figure 10 is a kind of schematic diagram of mapping relations in the embodiment of the present application；

Figure 11 is a kind of structural schematic diagram of server in the embodiment of the present application；

Figure 12 is a kind of structural schematic diagram of gateway in the embodiment of the present application；

Figure 13 is a kind of structural schematic diagram of D2X terminal in the embodiment of the present application；

Figure 14 is a kind of structural schematic diagram that the device of method of D2X communication is executed in the embodiment of the present application；

Figure 15 is a kind of structural schematic diagram of car-mounted terminal in the embodiment of the present application；

Figure 16 is a kind of structural schematic diagram of server in the embodiment of the present application.

Specific embodiment

The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for area Not similar object, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are appropriate In the case of can be interchanged, so that the embodiments described herein can be with suitable other than the content for illustrating or describing herein Sequence is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that covering non-exclusive includes example Such as, the process, method, system, product or equipment for containing series of steps or module those of are not necessarily limited to be clearly listed Step or module, but may include it is being not clearly listed or intrinsic for these process, methods, product or equipment its Its step or module, the division of module appeared in the application, only a kind of division in logic are real in practical application Current there may be another division manner, such as multiple modules can be combined into or be integrated in another system or some spies Sign can be ignored, or not execute, in addition, shown or discussion mutual coupling, direct-coupling or communication connection It can be through some interfaces, the indirect coupling or communication connection between module can be electrical or other similar form, this It is not construed as limiting in application.Also, module or submodule, which can be, as illustrated by the separation member may not be physically Separation, can be and may not be physical module, or can be distributed in multiple circuit modules, can be according to actual need Some or all of modules are selected to realize the purpose of application scheme.

The application has supplied a kind of equipment to can be used for car networking, work to any D2X method, apparatus communicated and storage medium The technical fields such as industry control application, such as can be applied to D2X communication, D2X communication can be D2D communication, D2I communication, D2N The communication scenes that communication, D2C communication, D2P communication etc. are interconnected, D2X communication are also possible to V2X and communicate, such as V2V communication, The communication scenes that V2I communication, V2N communication, V2C communication, V2P communication etc. are interconnected.D2X terminal in the embodiment of the present application It can be V2X terminal.It is situated between below based on a kind of communication system architecture figure shown in FIG. 1 to equipment involved in the application It continues.Communication system shown in FIG. 1 includes server, gateway and multiple D2X terminals.

For D2X terminal in the status information of periodicity sending itself, which may include identification information (such as vehicle ID), the status informations such as location information, movement speed, acceleration, moving direction or possible travelling route, can also be referred to as Periodic signal.

Gateway be used in network layer implementation above network interconnection, in the embodiment of the present application, gateway can be used for D2X terminal with Interaction between server, such as forward the upstream data packet of D2X terminal to the lower line number of server and forwarding server According to packet to D2X terminal, it can be used for D2X terminal and multicast group be added.

Server is used to provide the approach of access business logic for the use of D2X terminal, in the embodiment of the present application, service Device can be used for configuring the mapping relations of geographical location information and multicast address, be handed down to after mapping relations are encrypted Corresponding D2X terminal is also used for carrying out authentication to the D2X terminal of multicast group to be added.

In current mechanism, server is the geographical location based on vehicle feedback when matching multicast address, and the shifting of vehicle Dynamic property is stronger, and server needs to identify the geographical location of vehicle variation at any time, matches to vehicle Real-time Feedback with geographical location Multicast address.Therefore current mechanism has the following problems: 1, server can not be provided rapidly, accurately suitably for vehicle Multicast address, to not can guarantee the normal V2V communication of the vehicle.2, since the vehicle fleet size in server registration is huge, clothes The location information for the vehicle that business device wants amount detection huge, and corresponding feedback multicast address, need to occupy vast resources.3, by In base station deployment Density inhomogeneity, so the geographical position of home subscriber server (home subscriber server, HSS) Set that granularity of division is also uneven, and the geographical location that server obtains depends on the granularity of base station deployment density and its positioning, mesh The positioning accuracy of preceding 4G network below is generally below the rice of global positioning system (global position system, GPS) Grade positioning accuracy.It is not high to eventually lead to matched multicast address accuracy.

In order to solve the above technical problems, the application mainly uses following technical scheme:

Server carries out encryption camouflage processing to the multicast address in initial mapping relationship, and the mapping for obtaining a camouflage is closed So that UE can not perceive true multicast address, but still multicast group, UE can be added by the multicast address of selection in system Malicious dissemination can not be carried out in the multicast group being added.In addition, for the same D2X business of same geographic area deployment, Server only needs to store the initial mapping relationship of a geographical location information Yu initial multiast address, subsequent for different UE respectively encrypts initial mapping relationship, the mapping relations of geographical location information and pseudo- multicast address is obtained, then to right The D2X terminal answered issues, so as to reduce data storage load.In addition, the location information in mapping relations is preparatory It is divided according to the longitude and latitude of cellular network or GPS, is not needed upon D2X terminal dynamic to the real-time position of server update UE Confidence breath, server do not need as D2X Terminal-decision multicast address yet.But by D2X terminal according to itself location information from Row removes decision multicast address, and then the accuracy of final multicast address is higher.

Referring to Fig. 2, introduces the application and a kind of method that equipment is communicated to any D2X is provided, which comprises

201, server obtains mapping relations.

Wherein, the mapping relations include the mapping relations of geographical location information and pseudo- multicast address, the mapping relations packet Include the mapping relations of multiple groups geographical location information and pseudo- multicast address.Location information in mapping relations is previously according to honeycomb What the longitude and latitude of network or GPS divided, server is not needed upon D2X terminal dynamic to the real-time of server update D2X terminal Location information.Such as a kind of mapping relations shown in Fig. 3 a, disclose in Fig. 3 a geographical location 1, geographical location 2 ... it is geographical The mapping relations in the total n geographical location position n and n pseudo- multicast address, n is positive integer.

In some embodiments, server it is more can to obtain puppet to the initial multiast address encryption in initial mapping relationship Address is broadcast, and then obtains the mapping relations.Wherein, the pseudo- multicast address in the mapping relations can be according to following implemented side One of formula obtains:

According to the identity information of the D2X terminal, stamp and initial multiast address encryption obtain at the first time.

Alternatively, being obtained according to the identity information of the D2X terminal and initial multiast address encryption.

Alternatively, being obtained according to first time stamp and initial multiast address encryption.

Alternatively, being obtained according to D2X business information and initial multiast address encryption.

It may be incorporated into other information and generate pseudo- multicast address, the embodiment of the present application is not construed as limiting.

In some embodiments, the identity information of the D2X terminal can be the terminal iidentification of D2X terminal, MAC Address etc. The information of unique identification identity is not construed as limiting with regard to specific the embodiment of the present application.First time stamp can be D2X terminal to clothes The timestamp for device transmission checking request of being engaged in, can be the timestamp that server generates the puppet multicast address, is also possible to according to it What its rule generated, specific the application is not construed as limiting.The D2X business information can be the type of service of D2X business, D2X business Priority, the information such as service identification of the deployment range of D2X business or D2X business.In the embodiment of the present application, server can Using using D2X business as granularity, or the priority by distinguishing D2X business, it is grain according to the D2X business of same type or rank Degree is to distinguish corresponding multicast address.

As it can be seen that being generated random by the identity information and timestamp for introducing D2X terminal to initial multiast address encryption Pseudo- multicast address can increase the safety and anti-cracking of pseudo- multicast address, it is ensured that different D2X terminals are in difference in this way Time, the list of multicast addresses that same D2X terminal is requested in different time are different.Server and gateway can be by shared Key see the true multicast address in mapping relations.

Optionally, in some embodiments, when server is to initial multiast address encryption, when the server and net It closing in same trust domain, server can be used first key and encrypt to the multicast address in the mapping relations, and described first The key that key is shared between the server and the gateway；Alternatively, when the server and gateway are in different trust domain When, the encryption of the multicast address in mapping relations described in the second key pair can be used in server, and second key is the service Device exclusively enjoys key.

202, server sends the mapping relations to gateway.

203, gateway receives mapping relations from server, sends the mapping relations to D2X terminal.

204, D2X terminal obtains the mapping relations from the server from gateway, according to current location information and institute It states mapping relations and determines target puppet multicast address, send first message to gateway.

In the embodiment of the present application, gateway, can when functioning only as the role of the forwarding message between D2X terminal and server Omit the forwarding operation of gateway, it is believed that be that D2X terminal to server sends message, D2X terminal receives message, clothes from server Device be engaged in D2X transmission message, server receives message from D2X terminal.

D2X terminal can be mapping relations described in request for the first time, be also possible to the mapping that request updates again Relationship.

The first message carries the first identity information of the target puppet multicast address and the D2X terminal.

As shown in Figure 3b, D2X terminal knows D2X terminal current location information (for example, Shenzhen sieve according to GPS positioning Lake region depth east southeast road), then the location information is matched with the mapping relations, matching obtains geographical location 2 and covers The D2X business that the D2X terminal is subscribed to.Can also by user voluntarily according to the location information of D2X terminal judge in mapping relations with Matched geographical location.So, which can select the icon where geographical location 2 in the visual panel of D2X terminal.

205, gateway receives first message from the D2X terminal, authorizes the D2X terminal target puppet multicast is added The corresponding multicast group in location.

The gateway is after D2X terminal reception first message, described in the addition of D2X terminal described in the gateway authorization Before the corresponding multicast group of target puppet multicast address, the gateway also needs to obtain the plaintext of the target puppet multicast address (i.e. The target multicast address that the target puppet multicast address is decrypted).When the gateway and the server are in same trust domain When, decryption obtains target multicast address from the first message；Alternatively, working as the gateway from the server in different letters When appointing domain, the first message is transmitted to the server by the gateway, and device to be serviced is decrypted to obtain target multicast address Afterwards, the target multicast address obtained from the server receiving and deciphering；Alternatively, working as the gateway with the server same When trust domain, first message can also be transmitted to the server by the gateway, and device to be serviced is to the target puppet multicast address Decryption, after obtaining target multicast address, the target multicast address that is obtained from the server receiving and deciphering.The embodiment of the present application The mode of the corresponding target multicast address of target puppet multicast address in the mapping relations is not obtained to gateway.

206, after the corresponding multicast group of the target puppet multicast address is added in D2X terminal, Xiang Suoshu gateway sends D2X and disappears Breath.

After D2X terminal reception first message, the method also includes:

Gateway receives the D2X message that the D2X terminal is sent, and the destination address of the D2X message is updated to the mesh Pseudo- multicast address is marked, and sends the D2X message after updating destination address into the multicast group.

In the embodiment of the present application, server carries out encryption camouflage processing to the multicast address in initial mapping relationship, obtains The mapping relations of one camouflage so that D2X terminal can not perceive true multicast address, but still can according to itself Location information one target puppet multicast address of decision from the mapping relations, and added according to the target puppet multicast address of decision Enter multicast group, and D2X terminal can not carry out malicious dissemination in the multicast group being added.In addition, for same geographic area portion The same D2X business of administration, server only needs to store the initial mapping relationship of a location information and multicast address, subsequent Initial mapping relationship is encrypted and issued respectively for different D2X terminals, so as to reduce data storage Load.Location information in mapping relations is divided previously according to the longitude and latitude of cellular network or GPS, and D2X is not needed upon Dynamically to the real-time position information of server update D2X terminal, server does not need for D2X Terminal-decision multicast terminal yet Location.But decision multicast address, and then the standard of final multicast address are voluntarily gone according to the location information of itself by D2X terminal True property is higher, also reduces the computational load of server.

Optionally, in some embodiments of the present application, below as the server and the gateway in same trust When domain and the server and the gateway are in different trust domain, introduce D2X terminal respectively and send first to gateway and disappear Breath sends the stream of D2X message to request to be added the corresponding multicast group of target multicast address and D2X terminal in the multicast group Journey.Fig. 4 is the server and the gateway in same trust domain, and the corresponding multicast of target multicast address is added in D2X terminal Group, and in the multicast group send D2X message process.Fig. 5 is the server and the gateway in different trust domain When, the corresponding multicast group of target multicast address is added in D2X terminal, and the process of D2X message is sent in the multicast group.

As shown in figure 4, the server and the gateway be in same trust domain, gateway receives the from the D2X terminal After one message, gateway can directly obtain target multicast address, the application from the target mapping relations that the first message carries Embodiment includes:

307a, the gateway decrypt the target puppet multicast address of ciphertext in the first message, obtain the target of plaintext Multicast address.

The gateway can be used first key and the target puppet multicast address in the target mapping relations be decrypted, into And obtain the target multicast address of plaintext.After obtaining the target multicast address of plaintext, mesh is added in the gateway authorization D2X terminal Mark the corresponding multicast group of multicast address.Shared key of the first key between server and gateway, the first key are available Communication interaction between server and gateway, the mapping relations for needing first key to decrypt are for server and gateway To be considered as in plain text.

308, the D2X terminal sends D2X message to gateway, carries target mapping relations in the D2X message.

The target mapping relations carried in the D2X message are decrypted in 309a, the gateway, identify the D2X terminal Multicast group has been added, then the destination address in the D2X message has been updated to target puppet multicast address.

310, the gateway sends the D2X message after updating destination address into the multicast group.

As shown in figure 5, the server and the gateway be in different trust domain, gateway receives the from the D2X terminal After one message, need for the first message to be transmitted to server, and with obtaining the target multicast obtained after decryption from server Location, the target multicast address are obtained to after the decryption of target puppet multicast address.The embodiment of the present application includes:

307b, the server receive first message from gateway, solve to the target mapping relations in the first message It is close, the target multicast address of plaintext is obtained, and the target multicast address is sent to gateway.

The server is with can be used the target puppet multicast in the target mapping relations in the second key pair first message Location is decrypted, and then obtains the target multicast address of plaintext.Second key exclusively enjoys key for the server.

308b, the gateway receive the target multicast address of plaintext from the server, and the mesh is added in authorization D2X terminal Mark the corresponding multicast group of multicast address.

309, the D2X terminal sends D2X message to gateway, carries target mapping relations in the D2X message.

310, the target mapping relations carried in the D2X message are decrypted in the gateway, have identified the D2X terminal Multicast group is added, the destination address in the D2X message is updated to target puppet multicast address.

311, the gateway sends the D2X message after updating destination address into the multicast group.

The embodiment as corresponding to Fig. 4 and Fig. 5 is it is found that server and gateway in same trust domain, introduce shared key Pseudo- multicast address is generated, or in server and gateway difference trust domain, introducing exclusively enjoys key and generates pseudo- multicast address, It can guarantee that under the premise of not perceiving true mapping relations, multicast group still can be accurately added in D2X terminal.By True mapping relations are not perceived in D2X, and the D2X that can prevent D2X terminal from carrying out malice into multicast group to a certain extent disappears Breath broadcast.Even if different physical locations of the D2X terminal in some area all traverse one time, other D2X terminals can not be got Specific physical location, and then can not derive the motion track of other D2X terminals in this area.

It should be noted that in embodiment corresponding to Fig. 4, when server is in identical trust domain with gateway, service Device is when encrypting the initial multiast address in mapping relations, can also be using the in addition to using first key encryption outer Two keys are encrypted, correspondingly, needing to be transmitted to after gateway receives the first message or D2X message from D2X terminal Server is decrypted.In the embodiment of the present application, the second key can also have higher permission, that is, serve as the function of first key Energy.

Optionally, in some embodiments of the present application, due to some geographical location information base in above-mentioned mapping relations Originally it being fixed and invariable, the initial multiast address of the corresponding geographical location information is also that static state is constant, under normal circumstances, clothes The key of business device encryption initial multiast address is also fixed and invariable within a certain period of time.So no matter also using shared key It is to exclusively enjoy to encrypt this section in plain text, the puppet of the ciphertext obtained after being encrypted to the initial multiast address in mapping relations is more Broadcast address content be all it is static, changeless, malice D2X terminal by find may also crack out after rule it is true Multicast address.Only initial multiast address is encrypted, although malice D2X terminal can not parse ciphertext in the mapping relations Pseudo- multicast address corresponding to true multicast address, but the geography in mapping relations can be got due to malice D2X terminal Location information, so, malice D2X terminal can still find the pseudo- multicast address of the corresponding ciphertext of geographical location information.

For further enhance immobilized substance in above-mentioned mapping relations ciphertext (i.e. pseudo- multicast address) anti-cracking, this Shen Please be in embodiment, server can introduce D2X terminal when to initial multiast address encryption on the basis of initial multiast address It is more to have certain randomness, the puppet of dynamic change by encryption generation for the information such as identity information, timestamp, D2X business information Broadcast address.So the mapping relations finally obtained after encrypted for each D2X terminal are always different.For example, server can The identity information and timestamp for increasing D2X terminal on the basis of initial multiast address, since the identity of different D2X terminals is believed Breath is different, and timestamp is dynamic change, so, the pseudo- multicast address that final encryption generates also is different.

For example, D2X terminal 1 and D2X terminal 2 have subscribed the same V2X business a, server receives 1 He of D2X terminal D2X terminal 2 can issue respectively mapping relations after the checking request that areal a is sent for D2X terminal 1 and D2X terminal 2. Wherein, the identity information of D2X terminal 1 is that the timestamp of ID1, D2X terminal to server transmission checking request is The identity information of 201801020930, D2X terminals 2 is that the timestamp of ID2, D2X terminal to server transmission checking request is 201801020929.Although server side is only provided with a mapping relations 0, server for V2X business a in this area a It is that D2X terminal 1 generates mapping relations 1, and generates mapping relations 2 for D2X terminal 2 based on the mapping relations 0.Mapping relations 1 In pseudo- multicast address encrypt to obtain by ID1,201801020930 and multicast address a, the pseudo- multicast address in mapping relations 2 It encrypts to obtain by ID2,201801020929 and multicast address a.As it can be seen that the mapping relations that D2X terminal 1 and D2X terminal 2 obtain It is different.If D2X terminal 1 is malice D2X terminal, even if D2X terminal 1 can be truncated to server and be handed down to other D2X terminals Mapping relations, due to the changeability and irregularities of timestamp and D2X terminal identity information, the D2X terminal 1 is also more difficult broken The mapping relations that solution is truncated to.

On the basis of the information such as the identity information of D2X terminal, timestamp are introduced pseudo- multicast address by server, subsequent When D2X terminal sends D2X message into multicast group, gateway or server can also carry out the D2X terminal for sending D2X message The verifying of identity legitimacy.Such as in the step 304 in Fig. 6, after server authentication D2X terminal identity passes through, to D2X terminal Identification information, stamp and initial multiast address encryption at the first time, generate pseudo- multicast address, obtain encrypted mapping relations And it is handed down to the D2X terminal.Below as the server and the gateway in same trust domain and the server With the gateway in different trust domain, D2X terminal being introduced respectively to gateway and sends first message, it is more that target is added with request Broadcast the process that the corresponding multicast group in address and D2X terminal send D2X message in the multicast group.Fig. 6 is the server With the gateway in same trust domain, the corresponding multicast group of target multicast address is added in D2X terminal, and in the multicast group The interior process for sending D2X message.Fig. 7 is the server and the gateway in different trust domain, and target is added in D2X terminal The corresponding multicast group of multicast address, and in the multicast group send D2X message process.Gateway receives in Fig. 6 and Fig. 7 First message further include the D2X terminal the first identity information and the D2X terminal selection target mapping relations, should Target mapping relations include the target puppet multicast address of ciphertext, and the target puppet multicast address of the ciphertext may include that the D2X of ciphertext is whole The identity information (for convenient for subsequent judgement, referred to as the second identity information) at end can also include first time stamp etc..

On the basis of the step 307a of the corresponding embodiment of Fig. 4, the gateway from the D2X terminal receive first message it Afterwards, the authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, it is also necessary to D2X terminal Identity legitimacy verified.As shown in fig. 6, the server and the gateway be in same trust domain, gateway is from described After D2X terminal receives first message, gateway can directly obtain the first identity information, the second identity letter from the first message Breath and target multicast address, and voluntarily judge by gateway the legitimacy of D2X terminal identity, the embodiment of the present application includes:

307a ', the gateway decrypt the target mapping relations, obtain the target multicast address of plaintext and described The second identity information carried in target mapping relations.When determine first identity information and decryption obtain described second When identity information matches or is consistent, gateway determines that the D2X terminal is legal.That is, the D2X for sending first message is whole End is the legitimate receipt terminal of the target mapping relations, and the target mapping relations carried in the first message are that server is based on The checking request of the D2X terminal is sent to the D2X terminal.

In the embodiment of the present application, the purpose of the first identity information of gateway authentication and the second identity information is to be added in order to prevent The D2X terminal of multicast group pretends to be other D2X terminals in multicast group.It has prevented man-in-the-middle attack simultaneously or has stolen previous D2X Then the mapping relations for the ciphertext that terminal receives are dealt into gateway again with the mapping relations of the ciphertext, by increasing to D2X terminal Identity legitimacy verified, the identity information of the D2X terminal in mapping relations to prevent ciphertext and initiate addition group and ask The inconsistent caused security risk of the identity information for the D2X terminal asked, the embodiment of the present application can anti-tamper or go-between attack It hits.

On the basis of the step 307b of the corresponding embodiment of Fig. 5, the gateway from the D2X terminal receive first message it Afterwards, the authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, it is also necessary to D2X terminal Identity legitimacy verified.As shown in fig. 7, the server and the gateway be in different trust domain, gateway is from described After D2X terminal receives first message, needs the first message being transmitted to server, the body of D2X terminal is judged by server The legitimacy of part then provides the target multicast address obtained after decryption if legal to gateway, and the embodiment of the present application includes:

307b ', the server decrypt the target mapping relations, obtain target multicast address, the Yi Jisuo of plaintext The second identity information for stating the D2X terminal carried in target mapping relations, when determining that first identity information obtains with decryption Second identity information matching or it is consistent when, determine that the D2X terminal is legal.

In the embodiment of the present application, the purpose of the first identity information of server authentication and the second identity information is to add in order to prevent The D2X terminal for entering multicast group pretends to be other D2X terminals in multicast group.Man-in-the-middle attack has been prevented simultaneously or has been stolen previously Then the mapping relations for the ciphertext that D2X terminal receives are dealt into gateway again with the mapping relations of the ciphertext, by increasing to D2X end The identity legitimacy at end is verified, the identity information and initiation addition group of the D2X terminal in mapping relations to prevent ciphertext The inconsistent caused security risk of the identity information of the D2X terminal of request, the embodiment of the present application being capable of anti-tamper or go-between Attack.

Optionally, in some embodiments of the present application, when the variation of geographical location information granularity of division or geographical location When information updates, server can also obtain the mapping relations of update, after the mapping relations for encrypting update, be handed down to once Applied for the legal D2X terminal of mapping relations.It introduces and is updated in mapping relations process separately below, how to prevent pseudo- service Device issues safety issue brought by the mapping relations of update to D2X terminal.

As shown in figure 8, the embodiment of the present application includes:

801, server obtains the mapping relations updated, sends update message to D2X terminal.

The mapping relations can be server and voluntarily update, and be also possible to from CF acquisition, specific the application is not construed as limiting. The update message carries the mapping relations updated, which is used to indicate D2X terminal and updates the mapping relations being locally stored.

802, after D2X terminal receives the update message from server, verifying message is sent to CF.

The identification information and signing messages of server are carried in the verifying message.

803, after CF is verified the signing messages of server, confirmation message is returned to D2X terminal.

804, after D2X terminal receives the confirmation message from CF, the mapping relations being locally stored are updated.

805, D2X terminal to server, which is sent, updates confirmation response.

As shown in figure 9, the embodiment of the present application includes:

901, server obtains the mapping relations updated, sends update message to D2X terminal.

The update message is used to indicate DX and is ready to update mapping relations.

902, after DD2X terminal receives the update message from server, verifying message is sent to CF.

The identification information and signing messages of verifying message carrying server.

903, after CF is verified the signing messages of server, confirmation message is returned to D2X terminal.

904, it after D2X terminal receives the confirmation message from CF, is sent to server and updates request.

905, after server receives the update request from D2X terminal, after the identity success of verifying D2X terminal, encryption is more New mapping relations send the mapping relations of the update of the encryption to D2X terminal.

906, D2X receives the mapping relations of the update sent from server, updates the mapping relations locally saved.

In embodiment corresponding to Fig. 8 and Fig. 9, after D2X terminal receives the update message from server, CF is first removed Whether the identity for the server that place's verifying sends the update message is legal, and only after CF is verified, D2X terminal can just be gone The operation for updating mapping relations is executed, can be avoided the fallacious message that D2X receives pseudo server in this way, is avoided because updating Brought safety issue in the multicast group of malice is added after counterfeit mapping relations.In addition, D2X is updating local After mapping relations, the request of addition group can be sent to gateway, to apply that multicast group is added, whole flow process can refer to Fig. 2-Fig. 7 Introduction in middle any embodiment, does not repeat herein.

Optionally, in some embodiments of the present application, the geographical location information in the mapping relations can be D2X end The random number of the physical location of the physical location or instruction D2X terminal at end.Such as server distribution random number gives D2X terminal, after When continuous D2X terminal according to current geographic position can select that corresponding multicast group is added, the request of addition group, gateway are sent to gateway Addition group request is transmitted to server, with to the true multicast address of server request.Or server can be preparatory Synchronous random number and the mapping relations of multicast address are to gateway, and after gateway receives the addition group request of D2X terminal, gateway is straight It connects and gets true multicast address according to the mapping relations locally saved, then authorize the D2X terminal that this is added true more Broadcast the corresponding multicast group in address.Shown in specific analysis diagram 10.

In Figure 10, server saves the mapping relations of D2X terminal (such as UEa, UEb, UEc and UEd), mapping relations In include geographical location and random number.For example, the mapping relations of UEa include: geographical location A1 and random number (UEa-R1), Manage position A2 and random number (UEa-R2), geographical location A3 and random number (UEa-R3), geographical location A4 and random number (UEa- ) and geographical location A5 and random number (UEa-R5) R4.The mapping relations of UEb include: geographical location A1 and random number (UEb- R1), geographical location A2 and random number (UEb-R2), geographical location A3 and random number (UEb-R3), geographical location A4 and random number (UEb-R4) and geographical location A5 and random number (UEb-R5).UEc and UEd similarly, are not repeated.As shown in Figure 10, UEa, UEb, UEc and UEd correspond to geographical location A1, geographical location A2, geographical location A3 and geographical location A4.As it can be seen that Server is that each UE has been pre-configured with corresponding mapping relations, can be provided for each UE at different geographical locations Different mapping relations, to allow these UE that can accurately be added to the corresponding multicast group of current geographic position.

Technical characteristic described in the various embodiments described above, for example, mapping relations, geographical location information, pseudo- multicast address, Initial multiast address, timestamp, target puppet multicast address, encryption, decryption, D2X the technical characteristics such as terminal identity information, Any corresponding embodiment of Figure 11-Figure 16 being equally applicable in the application, subsequent similar place repeat no more.

A kind of method of software upgrading management in the application is described above, introduces execute above-mentioned software upgrading separately below The server and terminal of management.

A kind of structural schematic diagram of server as shown in figure 11, the server in the embodiment of the present application can be realized correspondence The method that the equipment as performed by server is communicated to any D2X in any corresponding embodiment in above-mentioned Fig. 2-Figure 10 In step.The function that server is realized can also execute corresponding software realization by hardware realization by hardware. Hardware or software include one or more modules corresponding with above-mentioned function, and the module can be software and/or hardware. The server may include transceiver module and processing module, and the function realization of the processing module, which can refer in Fig. 2-Figure 11, appoints One in corresponding embodiment by server obtain mapping relations, encryption initial multiast address, decryption target multicast address, It determines the legal equal operation of the D2X terminal, does not repeat herein.The function realization of the transceiver module can refer to Fig. 2-Figure 11 In obtain/receive mapping relations by server in any corresponding embodiment, send mapping relations, send target multicast The operations such as address, reception first message, processing module can be used for controlling the transmitting-receiving operation of the transceiver module.

In some embodiments, for the processing module for obtaining mapping relations, the mapping relations include geographical location The mapping relations of information and pseudo- multicast address；

The transceiver module is used to send the mapping relations that the processing module obtains to D2X terminal, so that the D2X is whole It holds according to current location information and the mapping relations with determining target puppet multicast address and the addition target puppet multicast The corresponding multicast group in location.

In the embodiment of the present application, the processing module of server carries out encryption camouflage to the multicast address in initial mapping relationship Processing obtains the mapping relations of a camouflage, so that D2X terminal can not perceive true multicast address, but still being capable of root According to the location information of itself from the mapping relations one target puppet multicast address of decision, and according to the target puppet multicast of decision Multicast group is added in address, and D2X terminal can not carry out malicious dissemination in the multicast group being added.In addition, for same geography The same D2X business of regional deployment, server only needs to store a location information and the initial mapping of multicast address is closed System, it is subsequent that initial mapping relationship is encrypted and issued respectively for different D2X terminals, so as to reduce Data store load.Location information in mapping relations is divided previously according to the longitude and latitude of cellular network or GPS, is not required to Will be based on D2X terminal dynamic to the real-time position information of server update D2X terminal, server does not need to determine for D2X terminal yet Plan multicast address.But decision multicast address, and then final multicast are voluntarily gone according to the location information of itself by D2X terminal The accuracy of address is higher, also reduces the computational load of server.

In some embodiments, the processing module is used for:

In some embodiments, the pseudo- multicast address in the mapping relations is obtained according to the encryption of one of following item:

Alternatively, stabbing and initial multiast address at the first time.

In some embodiments, the pseudo- multicast address in the mapping relations is according to D2X business information and initial multiast Location encrypts to obtain.

In some embodiments, the processing module is in the transceiver module to described in the legal D2X terminal transmission of identity After mapping relations, it is also used to:

The target multicast address is sent to the gateway by the transceiver module.

In some embodiments, the first message further includes the first identity information and the D2X end of the D2X terminal Hold the target mapping relations of selection；The processing module is used for:

In some embodiments, the geographical location information in the mapping relations includes the physical location of D2X terminal or refers to Show the random number of the physical location of D2X terminal.

A kind of structural schematic diagram of gateway as shown in figure 12, the gateway in the embodiment of the present application can be realized corresponding to upper State the step in the method that the equipment as performed by gateway is communicated to any D2X in any corresponding embodiment in Fig. 2-Figure 10 Suddenly.The function that server is realized can also execute corresponding software realization by hardware realization by hardware.Hardware or Software includes one or more modules corresponding with above-mentioned function, and the module can be software and/or hardware.The clothes Business device may include transceiver module and processing module, and the function realization of the processing module can refer to any institute, institute in Fig. 2-Figure 10 Mapping relations, decryption target multicast address are received by gateway in corresponding embodiment, determine the D2X terminal operation such as legal, It does not repeat herein.The function of the transceiver module realize can refer in Fig. 2-Figure 10 in any corresponding embodiment by Gateway receives mapping relations, sends mapping relations, send target multicast address, receive first message, the authorization D2X terminal The operation such as multicast group is added, processing module can be used for controlling the transmitting-receiving operation of the transceiver module.

In some embodiments, the transceiver module is used to receive mapping relations, the mapping relations from the server Mapping relations including geographical location information and pseudo- multicast address；The mapping relations are sent to D2X terminal, so that the D2X Terminal determines target puppet multicast address according to current location information and the mapping relations；First is received from the D2X terminal Message, the first message include the target puppet multicast address；

The processing module is for authorizing the D2X terminal that the corresponding multicast group of the target puppet multicast address is added.

In the embodiment of the present application, the mapping relations that the transceiver module of gateway is handed down to D2X terminal are by server for encrypting Camouflage processing, so D2X terminal can not perceive true multicast address in the mapping relations, but still can be according to certainly The location information of body one target puppet multicast address of decision, transceiver module of gateway from the mapping relations are getting D2X After the target puppet multicast address of Terminal-decision, multicast group is added in the processing module authorization of the gateway D2X terminal, can either be guaranteed D2X is added multicast group and carries out D2X communication, and can be realized D2X terminal and can not carry out malicious dissemination in the multicast group being added Purpose.

In some embodiments, the processing module the transceiver module from the D2X terminal receive first message it Afterwards, it is also used to:

D2X message is received from the D2X terminal by the transceiver module；

In some embodiments, the processing module the transceiver module from the D2X terminal receive first message it Afterwards, it authorizes the D2X terminal to be added before the corresponding multicast group of the target puppet multicast address, is also used to:

In some embodiments, the first message further includes the first identity information and the D2X end of the D2X terminal Hold the target mapping relations of selection；The processing module the transceiver module from the D2X terminal receive first message it Afterwards, the authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, is also used to:

This application involves D2X terminal, user can be directed to, the equipment of voice and/or data connectivity is provided.For example, D2X terminal can be the perhaps vehicle-mounted mobile device or D2X terminal of portable, pocket, hand-held, built-in computer Can be portable, pocket, hand-held, built-in computer or airborne mobile device.Such as D2X terminal can be The smart machines such as automobile, unmanned plane, personal digital assistant (personal digital assistant, PDA).D2X terminal It is properly termed as subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), user terminal (User Terminal), user agent (User Agent), user equipment (User Device), user equipment (User Equipment), point-of-sale terminal (full name in English: Point of Sales, English Referred to as: POS), any terminal such as vehicle-mounted computer, they can pass through network exchange voice and/or data.As shown in fig. 13 that one The structural schematic diagram of D2X terminal is planted, the D2X terminal in the embodiment of the present application can be realized appoints corresponding in above-mentioned Fig. 2-Figure 10 The step in method that the equipment as performed by D2X terminal is communicated to any D2X in embodiment corresponding to one.D2X terminal is real Existing function can also execute corresponding software realization by hardware realization by hardware.Hardware or software include one Or multiple modules corresponding with above-mentioned function, the module can be software and/or hardware.The server may include receiving Send out module and processing module, the function of the processing module, which is realized, can refer to any corresponding embodiment in Fig. 2-Figure 10 In mapping relations, selection target puppet multicast address received by D2X terminal, multicast group be added, update the operation such as mapping relations, this Place does not repeat.The function of the transceiver module, which is realized, can refer in Fig. 2-Figure 10 in any corresponding embodiment by net It closes and receives mapping relations, send target puppet multicast address, send first message, send D2X message, receive second message, send Operation, the processing modules such as third message, the first response of reception, the 4th message of transmission can be used for controlling the receipts of the transceiver module Hair operation.

In some embodiments, the transceiver module is used to obtain mapping relations from server, and the mapping relations include The mapping relations of geographical location information and pseudo- multicast address；

The processing module is used to determine target puppet multicast address according to current location information and the mapping relations, lead to It crosses the transceiver module and sends the first message for carrying the target puppet multicast address to gateway；

In the embodiment of the present application, pretend due to the mapping relations that the transceiver module of D2X terminal obtains, so D2X terminal Processing module do not need to perceive true multicast address, but still can be according to itself location information from the mapping One target puppet multicast address of decision in relationship, and multicast group, and D2X terminal are added according to the target puppet multicast address of decision Malicious dissemination can not be carried out in the multicast group being added.In addition, the location information in mapping relations is previously according to Cellular Networks What the longitude and latitude of network or GPS divided, D2X terminal does not need dynamically to the real-time position information of server update itself, D2X Terminal can voluntarily remove decision multicast address according to the location information of itself, and then the accuracy of final multicast address is higher, Reduce the transmission of message.

Alternatively, stabbing and initial multiast address at the first time.

In some embodiments, the transceiver module is also used to after server acquisition mapping relations:

Figure 14 is that a kind of structure of terminal of the execution equipment provided by the embodiments of the present application to any D2X method communicated is shown It is intended to, wherein may include at least one processor, at least one transceiver, memory, at least one bus.Wherein, at least One processor, at least one transceiver and memory can be connected by bus or other means, wherein to pass through in Figure 14 For bus connection.

Memory may include read-only memory and random access memory, and provide instruction and data to processor.It deposits The a part of of reservoir can also include nonvolatile RAM (full name in English: Non-Volatile Random Access Memory, english abbreviation: NVRAM).Memory is stored with operating system and program instruction, executable module or number According to structure perhaps their subset or their superset, wherein program instruction may include various operational orders, be used for Realize various operations.Operating system may include various system programs, be based on hardware for realizing various background tasks and processing Task.

Processor can control the operation of the equipment of software upgrading management, and processor can also be known as central processing unit (full name in English: Central Processing Unit, English abbreviation: CPU).In specific application, software upgrading management The various components of equipment are coupled by bus, and wherein bus can also include that power supply is total in addition to including data/address bus Line, control bus and status signal bus in addition etc..But for the sake of clear explanation, various buses all can be described as in Figure 14 Bus.

It should be noted that the institute in each embodiment of the application (including each embodiment shown in Figure 11, Figure 12, Figure 13) The corresponding entity device of some transceiver modules can be transceiver, and the corresponding entity device of all processing modules can be processing Device.Each device shown in Figure 11, Figure 12, Figure 13 can have structure as shown in figure 14, when one of device has such as Shown in Figure 14 when structure, processor and transceiver in Figure 14 realize what the Installation practice of the aforementioned correspondence device provided Processing module and the same or similar function of transceiver module, the memory storage processor in Figure 14 execute above equipment and take office The program code for needing to call when the method for meaning D2X communication.Wherein, which can also be replaced with receiver and transmitter, It can be same or different physical entity.When for identical physical entity, transceiver, such as the transmitting-receiving may be collectively referred to as Device can be radio frequency (full name in English: Radio Frequency, English abbreviation: RF) circuit.The memory can integrate In the processor, it can also be provided separately with the processor.

The method that above-mentioned each embodiment of the application discloses can be applied in processor shown in Figure 14, or by Figure 14 institute The processor shown is realized.For example, in some embodiments, the processor in Figure 14 can pass through the journey of calling memory storage Sequence instruction, needs to call when above-mentioned processing implement body executes the method that the equipment in the embodiment of the present application is communicated to any D2X Program code.

For example, memory storage processor in Figure 14 executes above-mentioned when server has structure as shown in figure 14 The program code that calls of needs when executing the method that equipment communicates to any D2X by server.Specifically, the place in Figure 14 Reason device can call the program code in memory to execute following operation:

The mapping relations that the processing module obtains are sent to D2X terminal by the transceiver, so that the D2X terminal Target puppet multicast address is determined according to current location information and the mapping relations and the target puppet multicast address is added Corresponding multicast group.

For example, when gateway has structure as shown in figure 14, the memory storage processor in Figure 14 execute it is above-mentioned by The program code for needing to call when gateway executes the method that equipment is communicated to any D2X.Specifically, the processor in Figure 14 The program code in memory can be called to execute following operation:

Receive mapping relations from the server by the transceiver, the mapping relations include geographical location information with The mapping relations of pseudo- multicast address；The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current position Information and the mapping relations determine target puppet multicast address；First message, the first message are received from the D2X terminal Including the target puppet multicast address；

For example, memory storage processor in Figure 14 executes above-mentioned when D2X terminal has structure as shown in figure 14 The program code that calls of needs when executing the method that equipment communicates to any D2X by D2X terminal.Specifically, the place in Figure 14 Reason device can call the program code in memory to execute following operation:

Mapping relations are obtained from server by the transceiver in described Figure 14, the mapping relations include geographical location letter The mapping relations of breath and pseudo- multicast address；

Target puppet multicast address is determined according to current location information and the mapping relations, passes through the receipts in described Figure 14 It sends out device and sends the first message for carrying the target puppet multicast address to gateway；

After controlling the corresponding multicast group of the D2X terminal addition target puppet multicast address, by described Figure 14 Transceiver sends D2X message to the gateway, to send the D2X message into the multicast group.

The embodiment of the present application also provides another D2X terminals, by taking car-mounted terminal as an example: Figure 15 is shown and the application The block diagram for the relevant part-structure of car-mounted terminal that embodiment provides.With reference to Figure 15, car-mounted terminal is included at least: RF circuit 1515, memory 1520 and processor 1580.It will be understood by those skilled in the art that car-mounted terminal structure shown in Figure 15 The restriction to car-mounted terminal is not constituted, may include than more or fewer components shown in Figure 15, or the certain portions of combination Part or different component layouts.

It is specifically introduced below with reference to each component parts of the Figure 15 to car-mounted terminal:

Signal sends and receivees during RF circuit 1515 can be used for receiving and sending messages, particularly, will be from server After information receives, handled to processor 1580；In addition, the information of car-mounted terminal is sent to server.In general, RF circuit 1515 include but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (full name in English: Low noise amplifier, English abbreviation: LNA), duplexer etc..In addition, RF circuit 1515 can also be by wireless communication It is communicated with network and other equipment.Any communication standard or agreement can be used in above-mentioned wireless communication, including but not limited to global Mobile communcations system (full name in English: global system of mobile communication, English abbreviation: GSM) leads to With grouping wireless service (full name in English: general packet radio service, English abbreviation: GPRS), CDMA (English is complete for (full name in English: code division multiple Access, English abbreviation: CDMA), wideband code division multiple access Claim: wideband code division multiple access, English abbreviation: WCDMA), long term evolution (full name in English: Long term evolution, English abbreviation: LTE), Email, short message service (full name in English: short Messaging service, English abbreviation: SMS) etc..The RF circuit 1515 can be with the transceiver module or Figure 14 in corresponding diagram 13 Shown in transceiver.

Memory 1520 can be used for storing software program and module, and processor 1580 is stored in memory by operation 1520 software program and module, thereby executing the various function application and data processing of car-mounted terminal.Memory 1520 It can mainly include storing program area and storage data area, wherein storing program area can storage program area, at least one function Required application program (such as sound-playing function, image player function etc.) etc.；Storage data area can be stored according to vehicle-mounted end End uses created data (such as audio data, phone directory etc.) etc..In addition, memory 1520 may include high speed with Machine access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or its His volatile solid-state part.

Processor 1580 is the control centre of car-mounted terminal, can be used for controlling the operation of car-mounted terminal.Specifically, processor 1580 can utilize the various pieces of various interfaces and the entire car-mounted terminal of connection, be stored in memory by running or executing Software program and/or module in 1520, and the data being stored in memory 1520 are called, execute each of car-mounted terminal Kind function and processing data, to carry out integral monitoring to car-mounted terminal.The processor 1580 can be with the processing in corresponding diagram 13 Processor shown in module or Figure 14.

Car-mounted terminal can also include I/O unit 1530, power supply 1590, display unit 1540, voicefrequency circuit 1560, loudspeaker 1561, microphone 1562 and Wireless Fidelity (full name in English: wireless fidelity, English abbreviation: Wi-Fi) module 1570.

Wherein, I/O unit 1530 can be used for receiving the number or character information of input, and pass through external interface Output number or character information.Specifically, I/O unit 1530 may include that touch panel 1531 and other inputs are set Standby 1532.Touch panel 1531, also referred to as touch screen, collecting the touch operation of user on it or nearby, (for example user makes With the behaviour of any suitable object or attachment such as finger, stylus on touch panel 1531 or near touch panel 1531 Make), and corresponding attachment device is driven according to preset formula.

Power supply 1590 is used for as all parts power supply in car-mounted terminal, power supply 1590 can by power-supply management system with Processor 1580 is logically contiguous, to realize the functions such as management charging, electric discharge and power managed by power-supply management system.

Display unit 1540 can be used for showing information input by user or the information and car-mounted terminal that are supplied to user Various menus.Display unit 1540 may include display panel 1541, optionally, can be (English complete using liquid crystal display Claim: Liquid Crystal Display, English abbreviation: LCD), Organic Light Emitting Diode (full name in English: Organic Light-Emitting Diode, English abbreviation: OLED) etc. forms configure display panel 1541.Further, touch surface Plate 1531 can cover display panel 1541, after touch panel 1531 detects touch operation on it or nearby, send to Processor 1580 is followed by subsequent processing device 1580 according to the type of touch event in display panel to determine the type of touch event Corresponding visual output is provided on 1541.Although touch panel 1531 and display panel 1541 are only as two in Figure 15 Vertical component realizes the input and input function of car-mounted terminal, but in some embodiments it is possible to by touch panel 1531 It is integrated with display panel 1541 and that realizes car-mounted terminal output and input function.

Voicefrequency circuit 1560, loudspeaker 1561, microphone 1562 can provide the audio interface between user and car-mounted terminal. Electric signal after the audio data received conversion can be transferred to loudspeaker 1561, by loudspeaker 1561 by voicefrequency circuit 1560 Be converted to voice signal output；On the other hand, the voice signal of collection is converted to electric signal by microphone 1562, by audio-frequency electric Road 1560 is converted to audio data after receiving, then by after the processing of audio data output processor 1580, through RF circuit 1515 to send out Such as another car-mounted terminal is given, or audio data is exported to memory 1520 to be further processed.

Wi-Fi belongs to short range wireless transmission technology, and car-mounted terminal can help user to receive and dispatch by Wi-Fi module 1570 Email, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although figure 15 show WiFi module 1570, but it is understood that, and it is not belonging to must be configured into for car-mounted terminal, it completely can be with It is omitted in the range for the essence for not changing application as needed.

Although being not shown, car-mounted terminal can also include camera, bluetooth module etc., and details are not described herein.

In the embodiment of the present application, processor 1280 included by the car-mounted terminal also there is control to execute above by D2X The method flow that the equipment that terminal executes is communicated to any D2X.

Another kind server provided by the embodiments of the present application, structural schematic diagram as shown in figure 16, which can Bigger difference is generated because configuration or performance are different, may include that (English is complete for one or more central processing units Claim: central processing units, English abbreviation: CPU) it is 1622 (for example, one or more processors), defeated Enter output interface 1658 and memory 1632, server can also include one or more storage application programs 1642 or The storage medium 1630 (such as one or more mass memory units) of data 1644.

Wherein, central processing unit 1622 can be set to communicate with storage medium 1630, executes and deposits on server 1620 Series of instructions operation in storage media 1630.Wherein, CPU1622 can in corresponding diagram 11 processing module or Figure 12 in Processor shown in processing module or Figure 14, storage medium 1630 can memories shown in corresponding diagram 14.

Input/output interface 1658 can be with institute in the transceiver module or Figure 14 in the transceiver module or Figure 12 in corresponding diagram 11 The transceiver shown.

Memory 1632 and storage medium 1630 can be of short duration storage or persistent storage, be stored in storage medium 1630 Program may include one or more modules (diagram does not mark), and each module may include to the system in server Column instruction operation.

Server 1620 can also include one or more power supplys 1626, one or more wired or wireless nets Network interface 1650, one or more input/output interfaces 1658, and/or, one or more operating systems 1641, Such as Windows Server, Mac OS X, Unix, Linux, FreeBSD etc..

The step as performed by server can be based on server architecture shown in the Figure 16 in the various embodiments described above.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, reference can be made to the related descriptions of other embodiments.

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

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple modules or soft Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, between device or module Coupling or communication connection are connect, can be electrical property, mechanical or other forms.

The module as illustrated by the separation member may or may not be physically separated, aobvious as module The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple On network module.Some or all of the modules therein can be selected to realize this embodiment scheme according to the actual needs Purpose.

It, can also be in addition, can integrate in a processing module in each functional module in each embodiment of the application It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as Fruit is realized and when sold or used as an independent product in the form of software function module, can store in a computer In read/write memory medium.

In the above-described embodiments, can come wholly or partly by software, hardware, software or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.

The computer program product includes one or more computer instructions.Load and execute on computers the meter When calculation machine program instruction, entirely or partly generate according to process or function described in the embodiment of the present application.The computer can To be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can be deposited Storage in a computer-readable storage medium, or from a computer readable storage medium to another computer-readable storage medium Matter transmission, for example, the computer instruction can be from a web-site, computer, server or data center by wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another Web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be stored either includes the numbers such as one or more usable mediums integrated server, data center According to storage equipment.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, ) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD)) etc. DVD.

Technical solution provided herein is described in detail above, specific case is applied in the application to this The principle and embodiment of application is expounded, the present processes that the above embodiments are only used to help understand And its core concept；At the same time, for those skilled in the art, according to the thought of the application, in specific embodiment And there will be changes in application range, in conclusion the contents of this specification should not be construed as limiting the present application.

Claims

1. a kind of method that equipment is communicated to any D2X, the method are executed by server, which is characterized in that the method packet It includes:

The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current location information and the mapping relations It determines target puppet multicast address and the corresponding multicast group of the target puppet multicast address is added.

2. the method according to claim 1, wherein the acquisition mapping relations, comprising:

3. method according to claim 1 or 2, which is characterized in that pseudo- multicast address in the mapping relations according to The encryption of one of lower item obtains:

Alternatively, stabbing and initial multiast address at the first time.

4. method according to claim 1 or 2, which is characterized in that the pseudo- multicast address in the mapping relations is according to D2X Business information and initial multiast address encryption obtain.

5. the method according to any one of claim 2-4, which is characterized in that the D2X terminal hair legal to identity After sending the mapping relations, the method also includes:

The first message from the D2X terminal is received from the gateway, the first message is with carrying the target puppet multicast Location；

The target multicast address is sent to the gateway.

6. according to the method described in claim 5, it is characterized in that, the first message further includes the first of the D2X terminal The target mapping relations of identity information and D2X terminal selection；It is described that the first message is decrypted, comprising:

The target mapping relations are decrypted, the second identity information of the D2X terminal carried in the target mapping relations is obtained；

It is described that the target puppet multicast address that decryption obtains is sent to the gateway after the decryption to the first message Before, method further include:

When determining that first identity information matches with second identity information that decryption obtains or is consistent, described in determination D2X terminal is legal.

7. method according to claim 1 to 6, which is characterized in that the geographical location letter in the mapping relations Breath includes the random number of the physical location of D2X terminal or the physical location of instruction D2X terminal.

8. a kind of method that equipment is communicated to any D2X, the method are executed by gateway, which is characterized in that the described method includes:

Mapping relations are received from the server, the mapping relations include the mapping pass of geographical location information and pseudo- multicast address System；

The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current location information and the mapping relations Determine target puppet multicast address；

9. according to the method described in claim 8, it is characterized in that, it is described from the D2X terminal receive first message after, institute State method further include:

10. according to the method described in claim 9, it is characterized in that, it is described from the D2X terminal receive first message after, The authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, further includes:

When the server and the gateway are in same trust domain, decryption is with obtaining target multicast from the first message Location；

Alternatively, Xiang Suoshu server sends the first message when the server and the gateway are in different trust domain, from The target multicast address that the server receiving and deciphering obtains.

11. according to the method described in claim 10, it is characterized in that, the first message further includes the of the D2X terminal The target mapping relations of one identity information and D2X terminal selection；After the reception first message from the D2X terminal, The authorization D2X terminal is added before the corresponding multicast group of the target puppet multicast address, method further include:

12. a kind of method that equipment is communicated to any D2X, the method are executed by D2X terminal, which is characterized in that the method Include:

Mapping relations are obtained from server, the mapping relations include the mapping relations of geographical location information and pseudo- multicast address；

Target puppet multicast address is determined according to current location information and the mapping relations, is sent to gateway and is carried the target The first message of pseudo- multicast address；

After the corresponding multicast group of the target puppet multicast address is added, Xiang Suoshu gateway sends D2X message, with to the multicast group It is interior to send the D2X message.

13. according to the method for claim 12, which is characterized in that the pseudo- multicast address in the mapping relations is according to following The encryption of one of item obtains:

Alternatively, stabbing and initial multiast address at the first time.

14. according to the method for claim 12, which is characterized in that the pseudo- multicast address in the mapping relations is according to D2X Business information and initial multiast address encryption obtain.

15. method described in any one of 2-14 according to claim 1, which is characterized in that described to obtain mapping pass from server After system, the method also includes:

To D2X management platform send third message, the third message carry the server signing messages and the service The identification information of device；

The first response is received from D2X management platform, first response is used to indicate the service for sending the second message Body part is verified；

16. method according to claim 14 or 15, which is characterized in that the geographical location information packet in the mapping relations It includes the physical location of D2X terminal or indicates the random number of the physical location of D2X terminal.

17. a kind of server, which is characterized in that the server includes:

Processing module, for obtaining mapping relations, the mapping relations include the mapping of geographical location information and pseudo- multicast address Relationship；

Transceiver module, for sending the mapping relations that the processing module obtains to D2X terminal so that the D2X terminal according to Current location information and the mapping relations determine target puppet multicast address and the target puppet multicast address are added and correspond to Multicast group.

18. server according to claim 17, which is characterized in that the processing module is used for:

19. server described in 7 or 20 according to claim 1, which is characterized in that the pseudo- multicast address root in the mapping relations The encryption of one of item is descended to obtain accordingly:

Alternatively, stabbing and initial multiast address at the first time.

20. server described in 7 or 18 according to claim 1, which is characterized in that the pseudo- multicast address root in the mapping relations It is obtained according to D2X business information and initial multiast address encryption.

21. server described in any one of 7-20 according to claim 1, which is characterized in that the processing module is in the receipts After hair module sends the mapping relations to the legal D2X terminal of identity, it is also used to:

The first message from the D2X terminal is received from the gateway by the transceiver module, the first message carries The target puppet multicast address；

The target multicast address is sent to the gateway by the transceiver module.

22. server according to claim 21, which is characterized in that the first message further includes the D2X terminal The target mapping relations of first identity information and D2X terminal selection；The processing module is used for:

After the processing module decrypts the first message, send what decryption obtained to the gateway in the transceiver module Before the target puppet multicast address, it is also used to:

23. server described in any one of 7-22 according to claim 1, which is characterized in that the geography in the mapping relations Location information includes the random number of the physical location of D2X terminal or the physical location of instruction D2X terminal.

24. a kind of gateway, which is characterized in that the gateway includes:

Transceiver module, for receiving mapping relations from the server, the mapping relations include that geographical location information and puppet are more Broadcast the mapping relations of address；The mapping relations are sent to D2X terminal, so that the D2X terminal is according to current location information Target puppet multicast address is determined with the mapping relations；First message is received from the D2X terminal, the first message includes institute State target puppet multicast address；

25. gateway according to claim 24, which is characterized in that the processing module is in the transceiver module from described After D2X terminal receives first message, it is also used to:

D2X message is received from the D2X terminal by the transceiver module；

The destination address of the D2X message is updated to the target puppet multicast address, by the transceiver module to described more It broadcasts and sends the D2X message after updating destination address in group.

26. gateway according to claim 25, which is characterized in that the processing module is in the transceiver module from described After D2X terminal receives first message, authorize the D2X terminal be added the corresponding multicast group of the target puppet multicast address it Before, it is also used to:

Alternatively, being sent out by the transceiver module to the server when the server and the gateway are in different trust domain The first message is sent, the target multicast address obtained by the transceiver module from the server receiving and deciphering.

27. gateway according to claim 26, which is characterized in that the first message further includes the of the D2X terminal The target mapping relations of one identity information and D2X terminal selection；The processing module is in the transceiver module from the D2X After terminal receives first message, the authorization D2X terminal be added the corresponding multicast group of the target puppet multicast address it Before, it is also used to:

28. a kind of D2X terminal, which is characterized in that the D2X terminal includes:

Transceiver module, for obtaining mapping relations from server, the mapping relations include geographical location information and pseudo- multicast The mapping relations of location；

Processing module, for determining target puppet multicast address according to current location information and the mapping relations, by described Transceiver module sends the first message for carrying the target puppet multicast address to gateway；

It is corresponding that the transceiver module is also used to the processing module control D2X terminal addition target puppet multicast address After multicast group, Xiang Suoshu gateway sends D2X message, to send the D2X message into the multicast group.

29. D2X terminal according to claim 28, which is characterized in that pseudo- multicast address in the mapping relations according to The encryption of one of following item obtains:

Alternatively, stabbing and initial multiast address at the first time.

30. D2X terminal according to claim 29, which is characterized in that pseudo- multicast address in the mapping relations according to D2X business information and initial multiast address encryption obtain.

31. the D2X terminal according to claim 29 or 30, which is characterized in that the transceiver module is reflected from server acquisition It penetrates after relationship, is also used to:

32. a kind of computer installation, which is characterized in that the computer installation includes:

At least one processor, memory and transceiver；

Wherein, the memory is used to call the program code in the memory for storing program code, the processor To execute the operation of the server as described in any one of claim 1-7, or execution such as any one of claim 8-11 institute The operation of gateway is stated, or executes the operation of the terminal as described in any one of claim 12-16.

33. a kind of computer storage medium, which is characterized in that it includes instructions, when run on a computer, so that calculating Machine executes the operation of the server as described in any one of claim 1-7, or executes such as any one of claim 8-11 institute The operation of gateway is stated, or executes the operation of the terminal as described in any one of claim 12-16.