CN109672708A

CN109672708A - Communication means and device, system

Info

Publication number: CN109672708A
Application number: CN201710963812.XA
Authority: CN
Inventors: 宗在峰; 孙德奎; 姚琦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-10-16
Filing date: 2017-10-16
Publication date: 2019-04-23
Anticipated expiration: 2037-10-16
Also published as: CN109672708B

Abstract

This application discloses a kind of communication means and devices, system.This method comprises: user's veil member obtains the session information of first terminal equipment, wherein the session information includes identification information and forward rule, and the identification information includes: media access control address, or, virtual local area network tags；User's veil member receives downlink data packet, carries identification information in the downlink data packet；User's veil member sends the downlink data packet according to the identification information and the session information that carry in the downlink data packet.Also disclose corresponding device and system.User's veil member realizes the ethernet communication of terminal device and network side according to the identification information carried in downlink data packet and session information transmission downlink data packet by obtaining the session information of terminal device.

Description

Communication means and device, system

Technical field

This application involves field of communication technology more particularly to a kind of communication means and device, system.

Background technique

In long term evolution (long term evolution, LTE) network, the session of IP type is only supported, the next generation moves Dynamic network, such as the 5th Generation Mobile Communication System, define three categories type of service and application scenarios, including eMBB (Extreme Mobile broadband) business, mMTC (Massive machine-type communication) business, URLLC (Ultra reliable low latency communication) business, core feature is super large bandwidth, magnanimity respectively Connection, ultralow time delay.In Internet of Things communication scenes, UE equipment may not have IP address, particularly with traditional industrial equipment, Mostly use Ethernet (Ethernet) double layered communication.In the epoch of all things on earth interconnection, these equipment needs are connected with external network, Information exchange and communication are carried out, to realize to the Weigh sensor of article, positioning, tracking, monitoring and management.

Therefore, how terminal device carries out ethernet communication between network side, is a problem to be solved.

Summary of the invention

The application provides a kind of communication means and device, system, to realize the ethernet communication of terminal device and network side.

The application's in a first aspect, provide a kind of communication means, which comprises user's veil member obtains first eventually The session information of end equipment, wherein the session information includes identification information and forward rule, and the identification information includes: matchmaker Body access control MAC address, or, virtual local area network tags VLAN tag；User's veil member receives downlink data packet, described Identification information is carried in downlink data packet；User's veil member is according to the identification information and institute carried in the downlink data packet Session information is stated, the downlink data packet is sent.In this design, user's veil member is believed by obtaining the session of terminal device Breath sends downlink data packet according to the identification information that carries in downlink data packet and the session information, realize terminal device with The ethernet communication of network side.

In a kind of possible design, the identification information includes at least one of following information: the first terminal The identification information of equipment, and have with the first terminal equipment identification information of the second terminal equipment of communication connection.At this In design, first terminal equipment can be common terminal device, be also possible to the terminal device of bridge mode, then the mark is believed Breath includes the identification information of first terminal equipment；If first terminal equipment is the terminal device of bridge mode, the first terminal Equipment can have communication connection relationship with one or more second terminal equipment, then the identification information includes second terminal equipment Identification information, can be with the identification information of first terminal equipment.

In alternatively possible design, the session information further includes session identification, the method also includes: the meeting It talks about managed network element and receives the session establishment request from the first terminal equipment, wherein the session establishment request packet includes institute State identification information and the session identification.In this design, identification information carries the session establishment request in first terminal equipment In, which is first terminal equipment itself generation or fixed configurations.

In another possible design, the method also includes: the session management network element, which receives, comes from described first The session modification request of terminal device, wherein the session modification request include the session identification and with it is described first eventually End equipment has the identification information of the third terminal equipment of communication connection；The session management network element sends session modification request to institute State user's veil member；User's veil member increases the mark of the third terminal equipment according to the session modification request received Information is known to the session information；The session management network element sends the first session modification and responds to the first terminal equipment. In this design, when there is new terminal device access, the identification information of new terminal device can be increased newly in session information, located Reason is flexible；Session modification request is used to indicate the identification information for increasing new terminal device.

In another possible design, the identification information includes the mark letter of at least one the second terminal equipment Breath, the method also includes: the session management network element receives the session modification request from the first terminal equipment, In, the session modification request includes the mark of the session identification and at least one the second terminal equipment for needing to delete Information；The session management network element sends session modification request to user's veil member；User's veil member is according to reception The session modification request arrived deletes the mark at least one the second terminal equipment that the needs in the session information are deleted Information；The session management network element sends the second session modification and responds to the first terminal equipment.In this design, when having When two terminal devices disconnect the communication connection with first terminal equipment, the terminal disconnected can be deleted in session information The identification information of equipment, processing are flexible；Session modification request is used to indicate the identification information deleted and need the terminal device deleted.

In another possible design, the method also includes: the session management network element, which receives, comes from described first The session modification request of terminal device, wherein the session modification request includes the session identification, modification instruction and refers to It is described to show that the identification information of the increased third terminal equipment for having communication connection with the first terminal equipment or instruction are deleted The identification information of second terminal equipment；The session management network element sends the session modification request to user's veil member； User's veil member is indicated according to the modification, is modified to the identification information in the session information.In this design, It can indicate to delete the identification information for needing the terminal device deleted in session information by a modification instruction, can also increase Add the identification information for needing increased terminal device, processing is flexible.

In another possible design, the method also includes: the session management network element receives request message, described Request message distributes the identification information for requesting；The session management network element distributes the identification information.In this design, Can be by session management network element allocation identification information, which includes the identification information of first terminal equipment, or, with first Terminal device has the identification information of the second terminal equipment of communication connection, by session management network element itself allocation identification information, no It will lead to identification information conflict.

In another possible design, the method also includes: the session management network element, which receives, comes from first terminal The request message of equipment, the request message are used to request to distribute the identification information of N number of second terminal equipment, N >=1；Wherein, institute Stating first terminal equipment and N number of second terminal equipment has communication connection relationship；The session management network element distribution is described N number of Identification information；Or the session management network element receives the request message from the first terminal equipment, the request message is used N number of identification information is distributed in request, wherein the N includes the quantity of the first terminal equipment and the number of second terminal equipment Amount, N >=2；The first terminal equipment and the second terminal equipment have communication connection relationship；The session management network element distribution N number of identification information.In this design, the identification information that second terminal equipment can be distributed by session management network element, can also With by the identification information of session management network element distribution first terminal equipment and second terminal equipment, by session management network element from status With identification information, identification information conflict not will lead to.

In another possible design, user's veil member is according to the identification information carried in the downlink data packet With the session information, the downlink data packet is sent, comprising: user's veil member is carried according in the downlink data packet The corresponding forward rule of identification information send the downlink data packet.

Correspondingly, the second aspect of the application provides a kind of communication device, which, which has, realizes above-mentioned first The function of user's veil member behavior in the method for aspect.The function can also be executed by hardware realization by hardware Corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

Based on the same inventive concept, the principle and beneficial effect solved the problems, such as due to the device may refer to above-mentioned respectively may be used The method implementation and brought beneficial effect of the communication device of energy, therefore the implementation of the device may refer to method Implement, overlaps will not be repeated.

Correspondingly, the third aspect of the application provides a kind of communication system, which, which has, realizes above-mentioned first The function of user's veil member and session management network element behavior in the method for aspect.The function can be by hardware realization, can also To execute corresponding software realization by hardware.The hardware or software include one or more moulds corresponding with above-mentioned function Block.

Based on the same inventive concept, the principle and beneficial effect solved the problems, such as due to the system may refer to above-mentioned respectively may be used The method implementation and brought beneficial effect of the communication system of energy, therefore the implementation of the system may refer to method Implement, overlaps will not be repeated.

The fourth aspect of the application provides a kind of communication means, which comprises first terminal equipment sends session Request, wherein the session request includes identification information, and the identification information includes: MAC address, or, empty Quasi- Local Area Network tag VLAN tag；The first terminal equipment receives downlink data packet, wherein carries in the downlink data packet Identification information.In this design, terminal device sends identification information, and user's veil member obtains the session information of terminal device, root Downlink data packet is sent according to the identification information and the session information that carry in downlink data packet, realizes terminal device and network side Ethernet communication.

In alternatively possible design, the method also includes: the first terminal equipment sends session modification request, Wherein, the session modification request includes the session identification and has the third of communication connection with the first terminal equipment The identification information of terminal device；The first terminal equipment receives the first session modification response from session management network element, institute Stating the response of the first session modification includes identification information modification result and/or identification information modification failure cause.In this design, when There is new terminal device access, the identification information of new terminal device can be increased newly in session information, processing is flexible；Session is repaired Change request and is used to indicate the identification information for increasing new terminal device.Identification information modification failure cause can be identification information weight It is multiple.

In another possible design, the identification information includes the mark letter of at least one the second terminal equipment Breath, the method also includes: the first terminal equipment sends session modification request, wherein the session modification request includes The identification information at least one the second terminal equipment that the session identification and needs are deleted；The first terminal equipment connects Receive the second session modification response from session management network element.In this design, when having, second terminal equipment is disconnected and first is whole When the communication connection of end equipment, the identification information of the terminal device disconnected, processing spirit can be deleted in session information It is living；Session modification request is used to indicate the identification information deleted and need the terminal device deleted.

In another possible design, the method also includes: the first terminal equipment, which receives, comes from session management The identification information testing result of network element, wherein the identification information testing result includes duplicate identification information.In the design In, if the identification information of identification information or fixed configurations that terminal device itself generates, need to also detect identification information by SMF is No repetition.

Correspondingly, the 5th aspect of the application additionally provides a kind of communication device, and the logical of above-mentioned fourth aspect may be implemented Letter method.Such as the communication device can be chip (such as baseband chip or communication chip etc.) or equipment (such as terminal device Deng).The corresponding software realization above method can be executed by software, hardware or by hardware.

It include processor, memory in the structure of the communication device in a kind of possible design；The processor quilt It is configured to that described device is supported to execute corresponding function in above-mentioned communication means.Memory is saved for coupling with processor The necessary program of described device (instruction) and/or data.Optionally, the communication device can also include communication interface for branch Hold the communication between described device and other network elements.

In alternatively possible design, the communication device may include transmission unit and receiving unit；Wherein: institute Transmission unit is stated, for sending session request, wherein the session request includes identification information, and the identification information includes: matchmaker Body access control MAC address, or, virtual local area network tags VLAN tag；The receiving unit, for receiving downlink data packet, Wherein, identification information is carried in the downlink data packet.

When the communication device is chip, receiving unit can be input unit, for example input circuit or communication connect Mouthful；Transmission unit can be output unit, such as output circuit or communication interface.When the communication device is equipment, connect Receiving unit can be receiver (being referred to as receiver)；Transmission unit can be transmitter, and (transmitter can be transmitting Device or transmitter).

The 6th aspect of the application, provides a kind of communication means, which comprises first terminal equipment sends request Message is to session management network element, wherein for the request message for requesting allocation identification information, the request message includes request The quantity N of the identification information of distribution, N >=1；The identification information includes: MAC address, or, virtual LAN Label VLAN tag；The first terminal equipment receives N number of identification information of the session management network element distribution.In the design In, the identification information of second terminal equipment can be distributed by session management network element, can also distribute first by session management network element The identification information of terminal device and second terminal equipment not will lead to mark by session management network element itself allocation identification information Information collision.

In a kind of possible design, the method also includes: the first terminal equipment obtains and the first terminal Equipment has the quantity N of the second terminal equipment of communication connection；The first terminal equipment is using N number of identification information as described in The identification information of second terminal equipment.In this design, the mark that second terminal equipment can be distributed by session management network element is believed Breath, by session management network element itself allocation identification information, not will lead to identification information conflict.

In alternatively possible design, the method also includes: the first terminal equipment is obtained with described first eventually End equipment has the quantity K of the second terminal equipment of communication connection, K=N-1, K >=1；The first terminal equipment is by N number of mark An identification information in information is known as itself identification information, and by K identification information in N number of identification information As the identification information of the second terminal equipment, and save the identification information and described K mark of the first terminal equipment The corresponding relationship of information.In this design, first terminal equipment and second terminal equipment can be distributed by session management network element Identification information not will lead to identification information conflict by session management network element itself allocation identification information.

The 7th aspect of the application additionally provides a kind of communication device, and the communication means of above-mentioned 6th aspect may be implemented. Such as the communication device can be chip (such as baseband chip or communication chip etc.) or equipment (such as terminal device).It can To execute the corresponding software realization above method by software, hardware or by hardware.

It include processor, memory in the structure of the communication device in a kind of possible design；The processor quilt It is configured to that described device is supported to execute corresponding function in above-mentioned communication means.Memory is saved for coupling with processor The necessary program of described device (instruction) and/or data.In another possible design, the communication device can also include Communication interface is used to support the communication between described device and other network elements.

In alternatively possible design, the communication device may include transmission unit and receiving unit；Wherein: institute Transmission unit is stated, for sending request message to session management network element, wherein the request message is for requesting allocation identification to be believed Breath, the request message include the quantity N of the identification information of request distribution, N >=1；The identification information includes: media access control MAC Address processed, or, virtual local area network tags VLAN tag；And the receiving unit, for receiving the session management network element N number of identification information of distribution.

The eighth aspect of the application provides a kind of communication means, which comprises user's veil member obtains first eventually The session information of end equipment, wherein the session information includes identification information, network protocol IP address and forward rule, described Identification information includes: MAC address, or, virtual local area network tags VLAN tag；User's veil member receives Downlink data packet carries IP address in the downlink data packet；User's veil member is carried according in the downlink data packet IP address and the session information, send the downlink data packet.In this design, user's veil member is set by obtaining terminal The corresponding relationship of standby session information and IP address and session information, according to the IP address and the meeting carried in downlink data packet It talks about information and sends downlink data packet, realize the ethernet communication of terminal device and network side.

In a kind of possible design, the session information further includes session identification, the method also includes: session management Network element receives the session request of the first terminal equipment, and the session request includes the identification information and the session mark Know；The session management network element distributes IP address corresponding with the identification information.

In alternatively possible design, user's veil member according to the IP address that is carried in the downlink data packet and The session information sends the downlink data packet, comprising: user's veil member in the downlink data packet according to carrying The corresponding forward rule of IP address sends the downlink data packet.

Correspondingly, the 9th aspect of the application, provides a kind of communication device, which, which has, realizes the above-mentioned 8th The function of user's veil member behavior in the method for aspect.The function can also be executed by hardware realization by hardware Corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

The tenth aspect of the application provides a kind of computer readable storage medium, in the computer readable storage medium It is stored with instruction, when run on a computer, so that computer executes method described in above-mentioned various aspects.

The tenth one side of the application provides a kind of computer program product comprising instruction, when it is transported on computers When row, so that computer executes method described in above-mentioned various aspects.

Detailed description of the invention

Technical solution in order to illustrate the embodiments of the present invention more clearly or in background technique below will be implemented the present invention Attached drawing needed in example or background technique is illustrated.

Fig. 1 is a kind of communication system schematic diagram provided in an embodiment of the present invention；

Fig. 2 is the exemplary next generation communication system configuration diagram of the embodiment of the present invention；

Fig. 3 is the interaction flow schematic diagram of a communication means provided in an embodiment of the present invention；

Fig. 4 is the communication system architecture schematic diagram of Relay UE connection Remote UE；

Fig. 5 is the interaction flow schematic diagram of the communication means of a specific example；

Fig. 6 is the interaction flow schematic diagram of the communication means of another specific example；

Fig. 7 is the interaction flow schematic diagram of the communication means of another specific example；

Fig. 8 is the interaction flow schematic diagram of the communication means of another specific example；

Fig. 9 is the interaction flow schematic diagram of another communication means provided in an embodiment of the present invention；

Figure 10 is a kind of modular structure schematic diagram of communication device provided in an embodiment of the present invention；

Figure 11 is a kind of hardware structure schematic diagram of communication device provided in an embodiment of the present invention；

Figure 12 is a kind of simplified structure diagram of communication device provided in an embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is described with reference to the attached drawing in the embodiment of the present invention.

The embodiment of the invention provides a kind of communication system, a kind of communications provided in an embodiment of the present invention as shown in Figure 1 System schematic.The communication system may include user's veil member 100 and session management network element 200, further, the communication system System can also include terminal device 300.Terminal device 300 and the user's veil member 100 and session management network element for being located at network side 200 are communicated, to carry out data transmission between data network (data network, DN).Wherein, the terminal device 300 can be common terminal device, be also possible to bridge mode terminal device (, such as can be bridge mode UE Or Relay UE (relay user equipment), it is described by taking Relay UE as an example in description below).One Relay UE can connect one or more distance terminal equipment (remote UE).It should be noted that session management network element with And user's veil member is only a name, name itself does not constitute restriction to entity.For example, the session management network element is also possible to It is replaced by " conversation management functional " or other names.Moreover, it includes in addition to meeting that the session management network element, which can also correspond to one, Talk about the network element outside management function there are also other function.User's veil member is also possible to be replaced by " user plane functions " or other names Word, moreover, user's veil member can also correspond to one include other than user plane functions there are also other function network element.Herein It is described collectively, is repeated no more below.

In embodiments of the present invention, user's veil member obtains the session information of first terminal equipment, wherein the session letter Breath include identification information and forward rule, the identification information include: media access control (media access control, MAC) address, or, virtual local area network tags (virtual local area network tag, VLAN tag)；The user Veil member receives downlink data packet, carries identification information in the downlink data packet；User's veil member is according to the downlink The identification information and the session information carried in data packet, sends the downlink data packet.

By taking next generation communication system as an example, Fig. 2 is the exemplary next generation communication system configuration diagram of the embodiment of the present invention. The communication system may include user plane functions entity (user plane function, UPF) and conversation management functional entity (session management function, SMF).User's veil member 100 in Fig. 1 can be UPF here；In Fig. 1 Session management network element 200 can be SMF here.The communication system may also include that access and mobile management function to ps domain entity (access and mobility management function, AMF).Wherein, terminal device passes through access network equipment (access network, AN) or wireless access network equipment (radio access network, RAN) access network.AMF is main It is responsible for the access-in management of terminal device.UPF is mainly responsible for the forwarding of packet data package, service quality (quality of Service, QoS) control, charge information statistics etc.；SMF is responsible for carrying out unified session management.In Fig. 2, it may also include it Its functional entity, herein only emphasis description this application involves several functional entitys.Connected between each entity by Nx interface Meet (such as N1, N2 in figure etc.).It should be noted that conversation management functional entity and user plane functions entity are only one Name, name itself do not constitute restriction to entity.For example, the conversation management functional entity is also possible to be replaced by " session pipe Manage function " or other names.Moreover, it includes other than conversation management functional that the conversation management functional entity, which can also correspond to one, There are also the entities of other function.User plane functions entity is also possible to be replaced by " user plane functions " or other names, moreover, The user plane functions entity can also correspond to one include other than user plane functions there are also other function entity.It carries out herein It is described collectively, repeats no more below.

Above-mentioned Fig. 1 or any one functional entity or network element in system shown in Figure 2, in the specific implementation, may be by one Entity device is realized, it is also possible to realize that the present invention is not especially limit this jointly by multiple entity devices.That is, can With understanding, any one functional entity or network element in above system, all may be a logic in entity device Functional module, it is also possible to which a logic functional block being made of multiple entity devices, the embodiment of the present invention do not make this to have Body limits.

Terminal device shown in fig. 1 or fig. 2 is that a kind of equipment with radio transmission-receiving function can be deployed in land, Including indoor or outdoors, hand-held, wearing or vehicle-mounted；(such as steamer) can also be deployed on the water surface；It can also dispose in the sky (such as on aircraft, balloon and satellite etc.).The terminal device can be mobile phone (mobile phone), tablet computer (Pad), Computer, virtual reality (virtual reality, VR) terminal device, augmented reality (augmented with radio transmission-receiving function Reality, AR) terminal device, the wireless terminal in Industry Control (industrial control), unmanned (self Driving the wireless terminal in wireless terminal, tele-medicine (remote medical), smart grid (smart in) Grid the wireless terminal in wireless terminal, transportation safety (transportation safety), smart city (smart in) City the wireless terminal etc. in wireless terminal, wisdom family (smart home) in).Embodiments herein is to applied field Scape is without limitation.Terminal device is referred to as user equipment (user equipment, UE), access terminal equipment, UE sometimes Unit, the station UE, movement station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal device, terminal (terminal), wireless telecom equipment, UE agency or UE device etc..

It should be noted that the term " system " and " network " in the embodiment of the present invention can be used interchangeably." multiple " are Refer to two or more, in consideration of it, " multiple " can also be interpreted as " at least two " in the embodiment of the present invention."and/or", The incidence relation of affiliated partner is described, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A, Exist simultaneously A and B, these three situations of individualism B.In addition, character "/" typicallys represent forward-backward correlation pair unless otherwise specified As if a kind of relationship of "or".In addition, for the ease of clearly describing the technical solution of the embodiment of the present application, in the implementation of the application In example, uses the printed words such as " first ", " second " and function and the essentially identical identical entry of effect or similar item are distinguished.This Field technical staff is understood that the printed words such as " first ", " second " are not defined quantity and execution order, and " the One ", the printed words such as " second " do not limit certain different yet.

This application provides a kind of communication means and device, user's veil member passes through the session information for obtaining terminal device, Downlink data packet is sent according to the identification information and the session information that carry in downlink data packet, realizes terminal device and network The ethernet communication of side.

Fig. 3 is a kind of interaction flow schematic diagram of communication means provided in an embodiment of the present invention, be can be applied to shown in Fig. 1 Communication system in.This method can comprise the following steps that

S301, first terminal equipment send session request.Session management network element receives the session request, and is sent to user Veil member.User's veil member receives the session request.

S302, user's veil member obtain the session information of first terminal equipment.

S303, data network send downlink data packet and give user's veil member.User's veil member receives the downlink data packet, and Send the downlink data packet.

Wherein, session information includes identification information and forward rule.

In the present embodiment, which can be common UE, be also possible to the terminal device of bridge mode (Relay UE).The Relay UE can connect one or more Remote UE, can also be not connected to.Remote UE is, for example, The UE of mMTC business is carried out with network side.The communication system architecture of Relay UE connection Remote UE as shown in Figure 4 is illustrated Scheme, one or more Remote UE may be met behind a Relay UE, i.e., the one or more Remote UE and Relay UE has communication connection relationship.

Remote UE and network side carry out ethernet communication in the present embodiment.First terminal equipment sends session request.Meeting Words managed network element receives the session request, and is sent to user's veil member.User's veil member receives the session request.The session is asked It asks and specifically can be Ethernet session request.It include identification information in the session request, which includes: MAC Address, Or, VLAN tag.The identification information may include the identification information of first terminal equipment or the identification information of first terminal equipment With the identification information for the second terminal equipment for having communication connection with first terminal equipment, or only include second terminal equipment mark Information.For example, the first terminal equipment can be Relay UE if the identification information only includes the mark of second terminal equipment, Second terminal equipment can be Remote UE, then at this point, Relay UE only be responsible for forwarding Remote UE information, itself not with Outer data network side carries out data interaction.

User's veil member receives the session request, after obtaining identification information, also needs to obtain forward rule, can just terminal be made to set It is standby to be communicated with network side.The forward rule is used to forward data packet, forward rule include encapsulation/decapsulation of data packet with And forwarding tunnel information.Forwarding tunnel information includes at least one of following information: uplink tunnel information and downlink tunnel letter Breath.Session management network element generates forward rule, is sent to user's veil member.Specifically, session management network element receives session and asks It asks, which further includes session identification, and session management network element generates forward rule corresponding with the session identification, by the mark Information, session identification and forward rule, which are known, as session information is sent to user's veil member.Wherein, the uplink tunnel in forward rule Road information can be the generation of session management network element, be also possible to the generation of user's veil member.If it is raw by user's veil member At uplink tunnel information, then the uplink tunnel information of generation is sent to session management network element, session management by user's veil member Network element generates forward rule.The forward rule may include in IP filter or packet detected rule (packet detection Rule in).Identification information and forward rule can be sent to user's veil member in a piece of news, can also be in multiple messages It is sent to user's veil member.

After user's veil member receives identification information and forward rule, the session information is stored.Specifically, if identification information Identification information including first terminal equipment, then the mark of user's veil member storage first terminal equipment is corresponding with forward rule Relationship；If identification information includes the identification information of first terminal equipment and the identification information of second terminal equipment, user's veil The mark and forward rule of the mark of member storage first terminal equipment and the corresponding relationship of forward rule and second terminal equipment Corresponding relationship；If identification information includes the identification information of second terminal equipment, user's veil member stores second terminal equipment Mark and forward rule corresponding relationship.

User's veil member can then carry out data communication after obtaining session information between terminal device and network side.With Family veil member receives the downlink data packet that data network (data network, DN) is sent, and carries mark in the downlink data packet Information.User's veil element resolution downlink data packet, obtains the identification information.The downlink data packet can be destined to first eventually End equipment is also possible to be sent to the second terminal equipment for having communication connection with first terminal equipment, and therefore, which can To be the identification information of first terminal equipment, it is also possible to the identification information of second terminal equipment.User's veil member is according to downlink The session information of the identification information and storage that carry in data packet matches corresponding with the identification information carried in downlink data packet Forward rule sends downlink data packet according to the forward rule.More specifically, sending the lower line number by matched downlink tunnel According to packet.

Downlink communication is mainly described above, and for uplink communication, first terminal equipment will be upper via uplink tunnel Row data packet is sent to user's veil member, source identification information and purpose mark letter in user's veil element resolution upstream data packet Breath, delivers a packet to data network.

In addition, identification information can be terminal device itself generation or fixed configurations, are also possible to session management net Member distribution.If identification information is that terminal device itself generates or fixed configurations, session management network element can also be to marks Know information conflict or repeat to detect, is returned to terminal device and repeat testing result, terminal device regenerates mark letter again Breath is sent to session management network element using new identification information.I.e. session management network element examines the identification information received It surveys；The first terminal equipment receives the identification information testing result from session management network element, wherein the identification information inspection Surveying result includes duplicate identification information.

If identification information is terminal device itself generation or fixed configurations, in one implementation, first terminal Equipment sends session establishment request, includes the identification information and the session identification in the session establishment request.Session pipe It manages network element and receives the session establishment request from the first terminal equipment.I.e. first terminal equipment can be asks in session establishment It asks middle transmission identification information to give session management network element, which is sent by session management network element and gives user's veil member.For example, If second terminal equipment has accessed first terminal equipment before session establishment, identification information may include requesting in session establishment In.In another implementation, first terminal equipment carries the identification information and the session in session modification request Mark.For example, session establishment request can not if second terminal equipment does not access first terminal equipment before session establishment Identification information is carried, it, then can be in session modification when after session establishment, there is second terminal equipment to access first terminal equipment The identification information and the session identification are carried in request.

Further, when there is new second terminal equipment to access first terminal equipment, can increase in session information The identification information of new second terminal equipment；When there is second terminal equipment to disconnect the connection with first terminal equipment, Ke Yi The identification information for needing the second terminal equipment deleted is deleted in session information.It specifically, can be different types of by two Session modification request increases identification information or deletes identification information.

In a kind of design, for first terminal equipment, the method also includes: the first terminal equipment sends session Modification request, wherein the session modification request includes the session identification and has communication link with the first terminal equipment The identification information of the third terminal equipment connect；The first terminal equipment receives the first session modification from session management network element Response, the first session modification response include that identification information modification result and/or identification information modify failure cause.For logical Letter system, the method also includes: the session management network element receives the session modification request from the first terminal equipment, Wherein, the session modification request includes the session identification and has the third of communication connection with the first terminal equipment The identification information of terminal device；The session management network element sends session modification request to user's veil member；The user Veil member increases the identification information of the third terminal equipment to the session information according to the session modification request received； The session management network element sends the first session modification and responds to the first terminal equipment.In this design, when there is new end End equipment access, can increase the identification information of new terminal device newly in session information, and processing is flexible；Session modification request is used Increase the identification information of new terminal device in instruction.

In another kind design, for first terminal equipment, the identification information includes at least one described second terminal The identification information of equipment, the method also includes: the first terminal equipment sends session modification request, wherein the session Modification request includes the identification information of the session identification and at least one the second terminal equipment for needing to delete；Described One terminal device receives the second session modification response from session management network element.For communication system, the identification information packet The identification information for including at least one the second terminal equipment, the method also includes: the session management network element reception comes from The session modification request of the first terminal equipment, wherein the session modification request includes the session identification and needs The identification information at least one the second terminal equipment deleted；The session management network element sends session modification request to the use Family veil member；User's veil member deletes the needs in the session information according to the session modification request received The identification information at least one the second terminal equipment deleted；The session management network element sends the second session modification and responds to institute State first terminal equipment.It in this design, can be with when there is second terminal equipment to disconnect with the communication connection of first terminal equipment The identification information of the terminal device disconnected is deleted in session information, processing is flexible；Session modification request is used to indicate Delete the identification information for needing the terminal device deleted.

Alternatively, it is also possible to delete need to delete the in session information by the request of a type of session modification request The identification information of two terminal devices.Specifically, for communication system, the method also includes: the session management network element receives Session modification request from the first terminal equipment, wherein the session modification request includes the session identification, modification Indicate and indicate identification information or the instruction of the increased third terminal equipment for having communication connection with the first terminal equipment The identification information for the second terminal equipment deleted；The session management network element sends the session modification request to the use Family veil member；User's veil member is indicated according to the modification, is modified to the identification information in the session information.? In the design, it can indicate that the mark for needing the terminal device deleted is deleted in session information to be believed by a modification instruction Breath, can also increase the identification information for needing increased terminal device, and processing is flexible.

If identification information is the distribution of session management network element, in a kind of design, the session management network element reception is asked Message is sought, the request message distributes the identification information for requesting；The session management network element distributes the identification information.

In another kind design, first terminal equipment sends request message to session management network element, wherein the request disappears For breath for requesting allocation identification information, the request message includes the quantity N of the identification information of request distribution, N >=1；Described One terminal device receives N number of identification information of the session management network element distribution.Specifically, in a kind of design, the session Managed network element receives the request message from first terminal equipment, and the request message is for requesting the N number of second terminal of distribution to set Standby identification information, N >=1；Wherein, the first terminal equipment and N number of second terminal equipment have communication connection relationship；Institute It states session management network element and distributes N number of identification information.The first terminal equipment acquisition has logical with the first terminal equipment Believe the quantity N of the second terminal equipment of connection；The first terminal equipment is using N number of identification information as the second terminal The identification information of equipment.In another kind design, the session management network element receives the request from the first terminal equipment Message, the request message distribute N number of identification information for requesting, wherein the N includes the quantity of the first terminal equipment With the quantity of second terminal equipment, N >=2；The first terminal equipment and the second terminal equipment have communication connection relationship；Institute It states session management network element and distributes N number of identification information.The first terminal equipment acquisition has logical with the first terminal equipment Believe the quantity K of the second terminal equipment of connection, K=N-1, K >=1；The first terminal equipment will be in N number of identification information One identification information is as itself identification information, and using K identification information in N number of identification information as described The identification information of two terminal devices, and the identification information for saving the first terminal equipment is corresponding with the K identification information Relationship.

It is described below by specific example:

The interaction flow schematic diagram of the communication means of a specific example as shown in Figure 5, UE1, UE2 ..., UEn are Remote UE, by Relay UE access network and and network interaction, specific implementation flow it is as follows:

The list of identification information of Relay UE acquisition Remote UE.Wherein, the identification information of Remote UE can be It is that Remote UE or Relay UE are generated by the algorithm of itself or fixed configurations, it is also possible to SMF distribution.

Specifically, if the identification information of Remote UE is that Remote UE is generated by the algorithm of itself or fixation is matched It sets, then one kind of list of identification information that Relay UE obtains Remote UE is achieved in that, Relay UE is to Remote UE obtains the identification information of Remote UE, for example, the identification information by the static configuration Remote UE on Relay UE arranges Table or Relay UE send address resolution protocol (address resolution protocol, ARP) request and obtain respectively The identification information of Remote UE；Another kind is achieved in that Relay UE receives the mark for the Remote UE that Remote UE is sent Information is known, for example, each Remote UE actively gives the identification-information reporting of oneself to Relay UE.

Specifically, if the identification information of Remote UE is that SMF is distributed, Relay UE transmission request message to SMF, Wherein, for the request message for requesting allocation identification information, the request message includes the number of the identification information of request distribution Measure N, N >=1；Relay UE receives N number of identification information of SMF distribution.Wherein, specific includes following implementations: Yi Zhongshi again Existing mode is that Relay UE obtains the quantity N of Remote UE, N >=1；Relay UE using N number of identification information as The identification information of Remote UE.Another kind is achieved in that, Relay UE obtain the quantity K, K=N-1, K of Remote UE >= 1；Relay UE is using an identification information in N number of identification information as itself identification information, and by N number of mark Know identification information of the K identification information in information as Remote UE, and saves the K identification information and Relay UE Identification information corresponding relationship.

Step S501~S508:Relay UE carries the list of identification information of remote UE in establishing conversation procedure.

S501.Relay UE sends session establishment request to AMF.AMF receives session establishment request.The session establishment is asked Ask it is middle carry Remote UE list of identification information and session identification (such as: PDU session ID).Session establishment request The identification information of Relay UE can also be carried.Such as when Relay UE itself is without communication, responsible relaying Remote UE The scene of communication is then not required to carry the identification information of Relay UE.

In addition, if Remote UE is not yet accessed when sending session establishment request, then it can also in session establishment request It, can be by carrying Remote UE in the session modification request in step S509 not carry the list of identification information of Remote UE Identification information.In addition, then identification information can be the form of list if it is multiple Remote UE access Relay UE, when So it is not limited to the form of list.The message can also include network slice information, data network title (data network Name, DNN), network slice information and DNN select SMF for AMF.PDU session ID is for indicating that Relay UE is built This vertical PDU session, subsequent Remote UE all with this PDU binding session.

Session establishment request is sent SMF by S502.AMF.SMF receives session establishment request.

S503. authentication is carried out to Remote UE.Specifically, it is contemplated that Remote UE in a network may be no pair The subscription data answered, SMF or UPF initiate an authentication process and authenticate to Remote UE, for example one is stored in DN The a little blacklist UE access network of certain identification informations (do not allow).The step is an optional step.

Whether S504.SMF detection identification information repeats, and receives the rule that PCF is issued.

Specifically, if identification information is that terminal device is generated self by algorithm or fixed configurations, SMF detection identify Whether information has repetition (need to only guarantee that identification information is unique in slice or in DNN) in the slice or in DNN.If depositing In duplicate identification information, SMF carries identification information testing result, then leads to when S506a notifies RAN uplink tunnel information S506b is crossed, it includes that duplicate mark is believed in identification information testing result that RAN, which sends identification information testing result and gives Relay UE, Breath.Relay UE receives the identification information testing result from SMF.

SMF will test after list of identification information notify policy control network element (policy control function, PCF).PCF saves the corresponding relationship of identification information and SMF, and subsequent PCF is facilitated to find the corresponding PDU meeting of UE according to identification information Words.For example, application function network element (Application function, AF), which is sent in the message of PCF, no to carry UE Mark, only carry identification information, optionally, also carrying DNN, network slice information etc., PCF need to be found pair according to identification information The SMF answered, SMF find corresponding session further according to identification information.

S505-S507. session and corresponding forward rule are established.It mainly include that SMF initiation N4 session establishment request is arrived UPF, SMF or UPF distribute UPF uplink tunnel resource (such as: Tunnel Identifier (Tunnel ID, TEID)) and by UPF IP Address and TEID notify the side RAN, and RAN allocation of downlink tunnel resource (such as: TEID) and by RAN IP address and TEID It notifies UPF, has thus established the uplink and downlink path of session, UPF obtains session information.

Specifically, SMF sends list of identification information and session identification to UPF in S505；UPF distributes the session identification pair The uplink tunnel resource answered, and send uplink tunnel information in S506a and uplink tunnel information is sent to RAN to SMF, SMF. SMF receives the downlink tunnel information of RAN distribution in S507.Accordingly, SMF generates forward rule.It then, will forwarding in S507 Rule is sent to UPF.UPF stores session information.

It is of course also possible to be that SMF distributes the session identification corresponding uplink tunnel resource, it is sent to RAN.

S508.UPF stores session information.Specifically, UPF stores the identification information pair of Remote UE and/or Relay UE The forward rule answered.Session information specifically refers to the identification information of Relay UE and the corresponding relationship of forward rule and/or one Or multiple Remote UE identification information and forward rule corresponding relationship, corresponding relationship is as shown in following table one:

One session information of table

Optionally, further include step S509-S514: carrying the identification information of new Remote UE during session updates

S509. new Remote UE (s) (UEn-1, UEn) dynamic access Relay UE.S510.Relay UE sends meeting AMF is arrived in words modification request.AMF receives the session modification request.Wherein, new Remote UE is carried in the session modification request (s) identification information (list) and session identification.Specifically, can each new Remote UE when initiate session when accessing and repair Change request, can also periodically initiate session modification request, there may be multiple new Remote UE access to arrive in this period Relay UE。

Session modification request is sent SMF by S511.AMF.SMF receives the session modification request, and notifies UPF.

S512. authentication is carried out to new Remote UE, specifically, it is contemplated that new Remote UE (s) is in 3GPP It may initiate a DN authentication process without corresponding subscription data, SMF or UPF in network and Remote UE (s) is carried out Certification, for example stores some blacklists in DN, do not allow certain UE access networks.The step is optional.

Newly-increased identification information is notified PCF by S513.SMF, facilitates subsequent PCF to be found according to identification information corresponding PDU session.

S514.UPF increases the corresponding relationship of the identification information and forward rule newly in session information.Specifically, SMF is sent Session modification request carries session identification and identification information to UPF in message.Wherein, SMF send session modification request it Before, optionally, session modification request can be packaged, for example, SMF may be by the session identification in session modification request It is substituted for N4session ID.UPF finds the corresponding forward rule of session identification, stores newly-increased identification information and forward rule Corresponding relationship.

As a kind of alternative of S509~S514, Relay UE can also delete some mark by session modification request Know the corresponding session information of information.Specific scene is that some Remote UE disconnects the connection with Relay UE, then Relay UE sends session modification request to AMF, which includes the identification information for needing to delete.AMF sends the session and repairs Change request to SMF.SMF receives the session modification request, and notifies UPF.UPF finds the identification information in session information and turns The corresponding relationship of rule is sent out, and deletes the corresponding relationship.

In view of session modification request may include both the above implementation, i.e., request is newly-increased or deletes identification information pair The session information answered, can also carry modification instruction in session modification request, and modification instruction is used to indicate newly-increased or deletes meeting Talk about the identification information in information.Such as modification instruction can be 1 bit information, " 1 " indicates to increase mark letter newly in session information Breath, " 0 " indicate to delete the identification information for needing to delete in session information；Conversely, " 0 " indicates to increase mark newly in session information Information, " 1 " indicate to delete the identification information for needing to delete in session information.

Step S515-S518: transmission of data packets

S515.Relay UE sends upstream data packet.UPF receives the upstream data packet, and is sent to DN.DN is received on this Row data packet.Specifically, uplink process is not different with current mechanism, and Remote UE only has when being sent to Relay UE One access.Relay UE delivers a packet to UPF via uplink tunnel, and UPF parses the purpose mark information of data packet, will Data packet is sent to DN.

S516.DN sends downlink data packet to UPF.UPF receives the downlink data packet.Wherein, mark is carried in data packet Information.

S517.UPF determines the corresponding forward rule of identification information that downlink data packet carries.

S518.UPF sends downlink data packet.

In this example, Relay UE collects the identification information of Remote UE, and sends out identification information in session request To SMF, identification information is issued UPF by SMF, and UPF determines the corresponding forward rule of identification information.Receiving downlink data packet When, according to the identification information and session information transmission downlink data packet in downlink data packet, realize terminal device and network side Ethernet communication；And Relay UE can request the mark for increasing or deleting in session information to be believed by session modification request Breath has biggish flexibility.

Fig. 6 is the interaction flow schematic diagram of the communication means of another specific example.Specific process is as follows:

S601.UE sends session establishment and requests to AMF.AMF receives session establishment request.The step and the basic phase of S501 Together, the difference is that carrying the identification information of a UE in session establishment request.The UE can be common UE, can also be with It is single Relay UE.

S602.AMF sends session establishment and requests to SMF.SMF receives session establishment request.The step is identical as S502.

S603. authentication is carried out to UE.The step is identical as S503.

Identification information is notified that, to PCF, PCF distributing policy control rule gives SMF by S604.SMF.The step is corresponding to S504 Part is identical.

S605~S607. establishes session and corresponding forward rule.S605~S607 is identical as S505~S507 respectively.

S608. session information is stored on UPF.The step is identical as S508, but session information only wraps in the present embodiment Include the corresponding relationship of one group of identification information and forward rule.

S609.UE sends upstream data packet to UPF.Upstream data packet is sent to DN by UPF.DN receives the upstream data Packet.The step is identical as S515.

S610.DN sends downlink data packet to UPF.The step is identical as S516.

S611.UPF determines the corresponding forward rule of purpose mark information in downlink data packet.The step and S517 phase Together.

S612.UPF sends downlink data packet.The step is identical as S518.

In this example, UPF obtains the session information of single UE, when receiving the downlink data packet for being sent to the UE, Can according in downlink data packet purpose mark information and session information send downlink data packet, realize the logical of UE and network side Letter.

Fig. 7 is the interaction flow schematic diagram of the communication means of another specific example.Difference with previous embodiment is For UE itself without identification information, SMF needs allocation identification information to Relay UE and/or one or more Remote UE.Specifically The following steps are included:

S701.Relay UE sends session establishment and requests to AMF.AMF receives session establishment request.The session establishment is asked Ask the quantity for only carrying the identification information of request distribution, the identification information without carrying Relay UE and/or Remote UE.

S702.AMF sends the session establishment and requests to SMF.SMF receives session establishment request.S702 and aforementioned implementation The S502 or S602 of example are identical, and details are not described herein.

S703. authentication is carried out to Remote UE.S703 is identical as the S503 of previous embodiment or S603, herein not It repeats again.

S704.SMF allocation identification information.If carrying the quantity of the identification information of request distribution in the request of S701, SMF distributes the identification information of corresponding number, and notifies to PCF.

Specifically, as a kind of implementation, session establishment request distributes N number of identification information, N >=1 for requesting；Its In, Relay UE and N number of Remote UE have communication connection relationship；SMF distributes N number of identification information.It will N number of mark Identification information of the information as Remote UE.

As another implementation, session establishment request distributes N number of identification information for requesting, and N includes Relay The quantity of UE and the quantity of Remote UE, N >=2；Wherein, Relay UE and Remote UE have communication connection relationship；SMF distribution N number of identification information.It will the identification information of N number of identification information as Relay UE and Remote UE.

S705, S706a and S707. establish session and corresponding forward rule.With S505~S507 of previous embodiment or S605~S607 difference is identical, and details are not described herein.

S706b.SMF gives identification information (list) notice to Relay UE.Relay UE safeguards Remote UE and Remote The corresponding relationship of the identification information of UE.

S708. session information is stored on UPF.S708 is identical as the S508 of previous embodiment or S608, no longer superfluous herein It states.

S709~S715 is new Remote UE access, also by SMF allocation identification information.Assigning process and S701, S704 It is identical.

It should be noted that in this embodiment, terminal device can be single common UE, or single Relay UE, The Relay UE can connect one or more Remote UE, can also be not connected to.

In this example, by SMF allocation identification information, UPF stores session information, when receiving downlink data packet, root According to the purpose mark information and session information transmission downlink data packet in downlink data packet, terminal device and network side are realized Ethernet communication.

Fig. 8 is the interaction flow schematic diagram of the communication means of another specific example.In fig. 8, U terminal device can be Single common UE, or single Relay UE, the Relay UE can connect one or more Remote UE, can not also connect It connects.Specific process is as follows:

S801.UE sends session establishment and requests to AMF.AMF receives session establishment request.It is taken in session establishment request Band session identification, but identification information is not carried.

S802.AMF sends session establishment and requests to SMF.SMF receives session establishment request.The step and S502, S602 Or S702 is identical.

S803. authentication is carried out to UE.The step is identical as S503, S603 or S703.

S804~S806. establishes session and corresponding forward rule.S804~S806 respectively with S505~S507 or S605 ~S607 is essentially identical.The difference is that the identification information of terminal device also has not been obtained in UPF at this time, SMF generation is only obtained Forward rule.

S807.UE sends upstream data packet to UPF.UPF forwards the upstream data packet to DN.It is different from previous embodiment It is that the upstream data packet includes identification information.

S808.UPF stores session information.The step is identical as S508, S608 or S708.So far, UPF obtains mark letter Breath and forward rule, to completely store session information.

Identification information is notified that, to PCF, PCF distributing policy control rule arrives SMF by S809.SMF.The step and S504 or S604 corresponding portion is identical.

S810.DN sends downlink data packet to UPF.The downlink data packet includes purpose mark information.The step and S516 Or S610 is identical.

S811.UPF determines the corresponding forward rule of purpose mark information in downlink data packet.The step and S517, S611 is identical.

S812.UPF sends downlink data packet.The step is identical as S518, S612.

Difference with Fig. 5 or embodiment illustrated in fig. 6 is that UE is not carried in session establishment request or session modification request Identification information, and UE send upstream data packet to UPF when, identification information is carried in upstream data packet, certainly, upstream data packet Also carry session identification.UPF is parsed source identification information (i.e. identification information) from upstream data packet, stores session information.

In this example, UPF obtains the identification information of UE from upstream data packet, session information is stored, in the case where receiving When row data packet, according to the purpose mark information and session information transmission downlink data packet in downlink data packet, end is realized The ethernet communication of end equipment and network side.

A kind of communication means provided according to embodiments of the present invention, user's veil member are believed by obtaining the session of terminal device Breath sends downlink data packet according to the identification information that carries in downlink data packet and the session information, realize terminal device with The ethernet communication of network side.

The embodiment of the present invention also provides another communication means, which comprises user's veil member obtains first terminal The session information of equipment, wherein the session information includes identification information, network protocol IP address and forward rule, the mark Knowing information includes: MAC Address, or, VLAN tag；User's veil member receives downlink data packet, in the downlink data packet Carry IP address；User's veil member is sent according to the IP address and the session information carried in the downlink data packet The downlink data packet.In this design, user's veil member passes through the session information and IP address of acquisition terminal device and meeting The corresponding relationship for talking about information sends downlink data packet according to the IP address and the session information that carry in downlink data packet, realizes The ethernet communication of terminal device and network side.

Specifically, Fig. 9 is the interaction flow schematic diagram of another communication means provided in an embodiment of the present invention.The embodiment With Fig. 3~embodiment illustrated in fig. 8 the difference is that: communicated between UPF and DN using IP layers, i.e., DN is issued in the data packet of UPF Destination address is the IP address of Remote UE.Specific implementation flow is as follows:

S901.UE sends session establishment and requests to AMF.AMF receives session establishment request.The step and S501, S601 Or S701 is identical.

S902.AMF sends session establishment and requests to SMF.SMF receives session establishment request.The step and S502, S602 Or S702 is identical.

S903. authentication is carried out to UE.The step is identical as S503, S603, S703 or S803.

S904~S906. establishes session and corresponding forward rule.S804~S806 respectively with S505~S507 or S605 ~S607 is essentially identical.The difference is that SMF or UPF are also that each Remote UE distributes an IP address in the present embodiment, It include the corresponding relationship of IP address and session identification, forward rule, identification information in session information.This IP address is not notified that To Remote UE, it is only used for the correspondence that UPF does MAC Address and IP address.

The IP address of the MAC Address of Remote UE or distribution is issued PCF, PCF distributing policy control rule by S907.SMF To SMF.The step and S504 or S604 corresponding portion are essentially identical.The difference is that in the present embodiment, also transmission IP address to PCF。

S908.UPF stores session information.Specifically, UPF saves the corresponding relationship of identification information and forward rule, and/or The corresponding relationship of IP address and forward rule, as shown in Table 2:

Table two

The identification information of Remote UE1	The IP address of Remote UE1	Forward rule
			The identification information of Remote UE2	The IP address of Remote UE2	Forward rule
……	……	……
			The identification information of Remote UEn	The IP address of Remote UEn	Forward rule

It should be noted that UPF can be as shown in Table 2, the identification information of Remote UE, the IP of Remote UE are saved The corresponding relationship of address and forward rule three can also save the identification information of Remote UE and the IP of Remote UE respectively The corresponding relationship of the corresponding relationship of address and the IP address of Remote UE and forward rule.

S909. new Remote UE access Relay UE.

S910.Relay UE sends session modification request to AMF.

S911.AMF sends session modification request to SMF.

S912. authentication is carried out to UE.

Newly-increased identification information/IP address is notified that, to PCF, PCF distributing policy control rule gives SMF by S913.SMF.

S914.UPF finds the above corresponding relationship according to session identification, stores the mark letter of newly-increased Remote UE In corresponding relationship shown in breath, the IP address of newly assigned Remote UE and the corresponding relationship to table two of forward rule three.

S915.Remote UE (can be any one in Remote UE1~UEn, for example, being with Remote UEn Example) send two layers of (MAC) upstream data packet give Relay UE.Relay UE sends the upstream data packet to UPF.It is taken in data packet The purpose mark information of source identification information and DN with itself.Specifically, after Relay UE receives the data packet, Relay UE is not changed, and passes to UPF via uplink tunnel.

Purpose mark information is substituted for IP address by S916.UPF.Specifically, UPF obtains purpose mark after parsing data packet Information searches corresponding IP address according to corresponding relationship shown in table two, data envelope is dressed up three layers of (IP) data packet, is being wrapped Head stamps the source IP address and the corresponding purpose IP address of DN of Remote UEn.IP data packet after encapsulation is transferred to DN.

S917.DN sends downlink data packet to UPF.UPF receives the downlink data packet.The downlink data packet is IP data, Purpose IP address is carried in data packet.

S918.UPF determines the corresponding identification information of IP address and forward rule that downlink data packet carries.Specifically, UPF After receiving data packet, purpose IP address is parsed, according to the corresponding identification information of Relation acquisition shown in table two and forward rule. Three layers of IP data packet is decapsulated, source identification information and purpose mark information (identification information of Remote UE) is added, becomes two Layer data packet.

S919.UPF sends downlink data packet.Specifically, Layer 2 data packet is transferred to Relay UE via downlink tunnel, Relay UE is transferred to Remote UE according to purpose mark information.

A kind of communication means provided according to embodiments of the present invention, user's veil member are believed by obtaining the session of terminal device The corresponding relationship of breath and IP address and session information is sent according to the IP address and the session information that carry in downlink data packet Downlink data packet realizes the ethernet communication of terminal device and network side.

It is above-mentioned to illustrate the method for the embodiment of the present invention, the device of the embodiment of the present invention is provided below.

Figure 10 is a kind of modular structure schematic diagram of communication device provided in an embodiment of the present invention, which can be Above-mentioned user's veil member.The communication device can be used for executing above-mentioned communication means.The communication device may include: processing Unit 1001, receiving unit 1002 and transmission unit 1003；Wherein: the processing unit 1001 is set for obtaining first terminal Standby session information, wherein the session information includes identification information and forward rule, and the identification information includes: MAC Location, or, VLAN tag；The receiving unit 1002 carries mark letter for receiving downlink data packet in the downlink data packet Breath；The transmission unit 1003, for sending according to the identification information and the session information carried in the downlink data packet The downlink data packet.

In a kind of possible design, the identification information includes at least one of following information: the first terminal The identification information of equipment, and have with the first terminal equipment identification information of the second terminal equipment of communication connection.

In alternatively possible design, the receiving unit 1002 is also used to receive the meeting from session management network element Words modification request, wherein the session modification request includes the session identification and has communication with the first terminal equipment The identification information of the third terminal equipment of connection；The processing unit 1001 is also used to according to the session modification request received, Increase the identification information of the third terminal equipment to the session information.

In another possible design, the identification information includes the mark letter of at least one the second terminal equipment Breath；The receiving unit 1002, is also used to receive the session modification request from session management network element, wherein the session is repaired Change the identification information that request includes the session identification and at least one the second terminal equipment for needing to delete；The processing Unit 1001 is also used to delete the needs in the session information according to the session modification request received and deletes extremely The identification information of few second terminal equipment.

In another possible design, the transmission unit 1003 is specifically used for: taking according in the downlink data packet The corresponding forward rule of the identification information of band sends the downlink data packet.

A kind of communication device provided according to embodiments of the present invention, the communication device can be above-mentioned user's veil member, User's veil member is believed by the session information of acquisition terminal device according to the identification information and the session that carry in downlink data packet Breath sends downlink data packet, realizes the ethernet communication of terminal device and network side.

Figure 11 is a kind of hardware structure schematic diagram of communication device provided in an embodiment of the present invention, which can be Above-mentioned user's veil member.The communication device can be used for executing above-mentioned communication means.The communication device may include: receiver 1101, transmitter 1102, processor 1103 and memory 1104, the receiver 1101, transmitter 1102,1103 and of processor Memory 1104 is connected with each other by communication line.

Memory include but is not limited to be random access memory (random access memory, RAM), read-only storage Device (read-only memory, ROM), Erasable Programmable Read Only Memory EPROM (erasable programmable read Only memory, EPROM) or portable read-only memory (compact disc read-only memory, CD-ROM), The memory is used for dependent instruction and data.

Receiver is for receiving data and/or signal and transmitter are for sending data and/or signal.Transmitter and Receiver can be independent device, be also possible to the device of an entirety.

Processor may include be one or more processors, for example including one or more central processing unit (central Processing unit, CPU), in the case where processor is a CPU, which can be monokaryon CPU, be also possible to more Core CPU.

Specifically, in one embodiment, the correlation function that the processing unit 1001 in Figure 10 is realized can be by one Or multiple processors realize that the correlation function that receiving unit 1002 is realized can be realized by receiver, transmission unit 1003 correlation functions realized can be realized by transmitter.Processor 1103 is used to obtain the session letter of first terminal equipment Breath, such as execute the S302 step in embodiment illustrated in fig. 3；Receiver 1101 is for receiving downlink data packet, such as execution Fig. 3 S303 step in illustrated embodiment；And transmitter 1102 is for sending downlink data packet, such as execution embodiment illustrated in fig. 3 In S303 step.

In another embodiment, processor 1103 is used to obtain the session information of first terminal equipment, such as executes Fig. 9 S904~S906, S908, S913~S914 and S918 in illustrated embodiment；Receiver 1101 is for receiving upstream data Packet, such as the S915 in embodiment illustrated in fig. 9 is executed, and receive downlink data packet, such as execute in embodiment illustrated in fig. 9 S917；And transmitter 1102 is for sending the S919 in downlink data packet, such as execution embodiment illustrated in fig. 9.

Specific implementation please refers to the description of above method embodiment.

A kind of communication device provided according to embodiments of the present invention, user's veil member are believed by obtaining the session of terminal device The corresponding relationship of breath and IP address and session information is sent according to the IP address and the session information that carry in downlink data packet Downlink data packet realizes the ethernet communication of terminal device and network side.

Figure 12 is a kind of simplified structure diagram of communication device provided in an embodiment of the present invention, which can be Above-mentioned first terminal equipment.The communication device can be used for executing above-mentioned communication means.It is convenient to be easy to understand and illustrate, Figure 12 In, terminal device with mobile phone as an example.As shown in figure 12, terminal device includes processor, memory, radio circuit, antenna And input/output unit.Processor is mainly used for handling communication protocol and communication data, and to terminal device It is controlled, executes software program, the data etc. of processing software program.Memory is mainly used for storing software program and data. Radio circuit is mainly used for the conversion of baseband signal and radiofrequency signal and the processing to radiofrequency signal.Antenna is mainly used for receiving and dispatching The radiofrequency signal of electromagnetic wave.Input/output unit, such as touch screen, display screen, it is defeated that keyboard etc. is mainly used for reception user The data that enter and to user's output data.It should be noted that the terminal device of some types can not have input and output Device.

When needing to send data, after processor carries out Base-Band Processing to sent data, output baseband signal is to penetrating Radiofrequency signal will be passed through antenna in the form of an electromagnetic wave to outgoing after baseband signal progress radio frequency processing by frequency circuit, radio circuit It send.When there is data to be sent to terminal device, radio circuit receives radiofrequency signal by antenna, and radiofrequency signal is converted to base Band signal, and baseband signal is exported to processor, baseband signal is converted to data and handled the data by processor. For purposes of illustration only, illustrating only a memory and processor in Figure 12.In actual terminal device product, may exist one A or multiple processors and one or more memories.Memory is referred to as storage medium or storage equipment etc..Storage Device can be to be arranged independently of processor, is also possible to be integral to the processor together, the embodiment of the present application is without limitation.

In the embodiment of the present application, can by with transmission-receiving function antenna and radio circuit be considered as the reception of terminal device Processor with processing function, is considered as the processing of terminal device by unit and transmission unit (also may be collectively referred to as Transmit-Receive Unit) Unit.As shown in figure 12, terminal device includes receiving unit 1201, processing unit 1202 and transmission unit 1203.Receiving unit 1201 are referred to as receiver, receiver, reception circuit etc., and transmission unit 1203 is referred to as transmitter, transmitter, hair Penetrate machine, transmit circuit etc..Processing unit is referred to as processor, handles veneer, processing module, processing unit etc..

For example, in one embodiment, receiving unit 1201 is sent for executing the step S301 of embodiment illustrated in fig. 3 Session request gives session management network element；Transmission unit 1203 receives downlink for executing the step S303 of embodiment illustrated in fig. 3 Data packet.

Specifically refer to the description of embodiment of the method.

A kind of terminal device provided according to embodiments of the present invention realizes the ether Netcom of terminal device and network side Letter.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

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 unit, 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 systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It 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, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware 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.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or transmitted by the computer readable storage medium.The computer instruction can be from a web-site, meter Calculation machine, server or data center pass through wired (such as coaxial cable, optical fiber, Digital Subscriber Line (digital subscriber Line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or number It is transmitted according to center.The computer readable storage medium can be any usable medium that computer can access either The data storage devices such as server, the data center integrated comprising one or more usable mediums.The usable medium can be Magnetic medium, (for example, floppy disk, hard disk, tape), optical medium are (for example, digital versatile disc (digital versatile Disc, DVD)) or semiconductor medium (such as solid state hard disk (solid state disk, SSD)) etc..

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, the process Relevant hardware can be instructed to complete by computer program, which can be stored in computer-readable storage medium, should Program is when being executed, it may include such as the process of above-mentioned each method embodiment.And storage medium above-mentioned includes: read-only memory (read-only memory, ROM) or random access memory (random access memory, RAM), magnetic or disk Etc. the medium of various program storage codes.

Claims

1. a kind of communication means, which is characterized in that the described method includes:

The session information of user's veil member acquisition first terminal equipment, wherein the session information includes identification information and forwarding Rule, the identification information include: MAC address, or, virtual local area network tags VLAN tag；

User's veil member receives downlink data packet, carries identification information in the downlink data packet；

User's veil member is according to the identification information and the session information carried in the downlink data packet, under transmission is described Row data packet.

2. the method as described in claim 1, which is characterized in that the identification information includes at least one of following information: The identification information of the first terminal equipment, and have with the first terminal equipment mark of the second terminal equipment of communication connection Know information.

3. method according to claim 1 or 2, which is characterized in that the session information further includes session identification, the method Further include:

The session management network element receives the session establishment request from the first terminal equipment, wherein the session establishment Request includes the identification information and the session identification.

4. method as claimed in claim 3, which is characterized in that the method also includes:

The session management network element receives the session modification request from the first terminal equipment, wherein the session modification Request includes the session identification and has the mark of the third terminal equipment of communication connection to believe with the first terminal equipment Breath；

The session management network element sends session modification request to user's veil member；

User's veil member increases the identification information of the third terminal equipment to institute according to the session modification request received State session information；

The session management network element sends the first session modification and responds to the first terminal equipment.

5. method as claimed in claim 3, which is characterized in that the identification information includes that at least one described second terminal is set Standby identification information, the method also includes:

The session management network element receives the session modification request from the first terminal equipment, wherein the session modification Request includes the identification information of the session identification and at least one the second terminal equipment for needing to delete；

User's veil member deletes what the needs in the session information were deleted according to the session modification request received The identification information of at least one second terminal equipment；

The session management network element sends the second session modification and responds to the first terminal equipment.

6. method according to claim 1 or 2, which is characterized in that the method also includes:

The session management network element receives request message, and the request message distributes the identification information for requesting；

The session management network element distributes the identification information.

7. method according to claim 1 or 2, which is characterized in that the method also includes:

The session management network element receives the request message from first terminal equipment, and the request message is for requesting distribution N The identification information of a second terminal equipment, N >=1；Wherein, the first terminal equipment has logical with N number of second terminal equipment Believe connection relationship；

The session management network element distributes N number of identification information；Or

The session management network element receives the request message from the first terminal equipment, and the request message divides for requesting With N number of identification information, wherein the N includes the quantity of the first terminal equipment and the quantity of second terminal equipment, N >=2； The first terminal equipment and the second terminal equipment have communication connection relationship；

The session management network element distributes N number of identification information.

8. method as described in any one of claims 1 to 7, which is characterized in that user's veil member is according to the lower line number According to the identification information and the session information carried in packet, the downlink data packet is sent, comprising:

User's veil member according to the corresponding forward rule of the identification information carried in the downlink data packet send it is described under Row data packet.

9. a kind of communication means, which is characterized in that the described method includes:

First terminal equipment sends session request, wherein the session request includes identification information, and the identification information includes: MAC address, or, virtual local area network tags VLAN tag；

The first terminal equipment receives downlink data packet, wherein carries identification information in the downlink data packet.

10. method as claimed in claim 9, which is characterized in that the identification information includes at least one of following information: The identification information of the first terminal equipment, and have with the first terminal equipment mark of the second terminal equipment of communication connection Know information.

11. the method as described in claim 9 or 10, which is characterized in that the method also includes:

The first terminal equipment sends session modification request, wherein the session modification request include the session identification, with And there is the identification information of the third terminal equipment of communication connection with the first terminal equipment；

The first terminal equipment receives the first session modification response from session management network element, and first session modification is rung It should include that identification information modification result and/or identification information modify failure cause.

12. the method as described in claim 9 or 10, which is characterized in that the identification information include at least one described second The identification information of terminal device, the method also includes:

The first terminal equipment sends session modification request, wherein the session modification request include the session identification, with And the identification information at least one the second terminal equipment for needing to delete；

The first terminal equipment receives the second session modification response from session management network element.

13. such as the described in any item methods of claim 9~11, which is characterized in that the method also includes:

The first terminal equipment receives the identification information testing result from session management network element, wherein the identification information Testing result includes duplicate identification information.

14. a kind of communication means, which is characterized in that the described method includes:

First terminal equipment sends request message to session management network element, wherein the request message is for requesting allocation identification Information, the request message include the quantity N of the identification information of request distribution, N >=1；The identification information includes: media access MAC Address is controlled, or, virtual local area network tags VLAN tag；

The first terminal equipment receives N number of identification information of the session management network element distribution.

15. method as claimed in claim 14, which is characterized in that the method also includes:

The first terminal equipment obtains the quantity N for the second terminal equipment for having communication connection with the first terminal equipment；

The first terminal equipment is using N number of identification information as the identification information of the second terminal equipment.

16. method as claimed in claim 14, which is characterized in that the method also includes:

The first terminal equipment obtains the quantity K, K=for the second terminal equipment for having communication connection with the first terminal equipment N-1, K >=1；

The first terminal equipment using an identification information in N number of identification information as itself identification information, and Using K identification information in N number of identification information as the identification information of the second terminal equipment, and save described first The corresponding relationship of the identification information of terminal device and the K identification information.

17. a kind of communication device, which is characterized in that described device includes: processing unit, receiving unit and transmission unit；Wherein:

The processing unit, for obtaining the session information of first terminal equipment, wherein the session information includes identification information And forward rule, the identification information include: MAC address, or, virtual local area network tags VLAN tag；

The receiving unit carries identification information in the downlink data packet for receiving downlink data packet；

The transmission unit, for sending institute according to the identification information and the session information carried in the downlink data packet State downlink data packet.

18. communication device as claimed in claim 17, which is characterized in that the identification information include in following information at least It is a kind of: the identification information of the first terminal equipment, and there is the second terminal of communication connection to set with the first terminal equipment Standby identification information.

19. the communication device as described in claim 17 or 18, it is characterised in that:

The receiving unit is also used to receive the session modification request from session management network element, wherein the session modification is asked Seek the identification information for having the third terminal equipment of communication connection including the session identification and with the first terminal equipment；

The processing unit is also used to increase according to the session modification request received the mark letter of the third terminal equipment It ceases to the session information.

20. the communication device as described in claim 17 or 18, which is characterized in that the identification information includes described at least one The identification information of second terminal equipment；

The receiving unit is also used to receive the session modification request from session management network element, wherein the session modification is asked Seek the identification information including the session identification and at least one the second terminal equipment for needing to delete；

The processing unit is also used to delete the needs in the session information according to the session modification request received The identification information at least one the second terminal equipment deleted.

21. such as the described in any item communication devices of claim 17~20, which is characterized in that the transmission unit is specifically used for:

The downlink data packet is sent according to the corresponding forward rule of the identification information carried in the downlink data packet.

22. a kind of communication device, which is characterized in that described device includes: transmission unit and receiving unit；Wherein:

The transmission unit, for sending session request, wherein the session request includes identification information, the identification information It include: MAC address, or, virtual local area network tags VLAN tag；

The receiving unit, for receiving downlink data packet, wherein carry identification information in the downlink data packet.

23. communication device as claimed in claim 22, which is characterized in that the identification information include in following information at least It is a kind of: the identification information of the first terminal equipment, and there is the second terminal of communication connection to set with the first terminal equipment Standby identification information.

24. the communication device as described in claim 22 or 23, it is characterised in that:

The transmission unit is also used to send session modification request, wherein the session modification request includes the session mark Know and have with the first terminal equipment communication connection third terminal equipment identification information；

The receiving unit, is also used to receive the first session modification response from session management network element, and first session is repaired Changing response includes identification information modification result and/or identification information modification failure cause.

25. the communication device as described in claim 22 or 23, which is characterized in that the identification information includes described at least one The identification information of second terminal equipment；

The transmission unit is also used to send session modification request, wherein the session modification request includes the session mark The identification information of knowledge and at least one the second terminal equipment for needing to delete；

The receiving unit is also used to receive the second session modification response from session management network element.

26. such as the described in any item communication devices of claim 22~25, it is characterised in that:

The receiving unit is also used to receive the identification information testing result from session management network element, wherein the mark letter Ceasing testing result includes duplicate identification information.

27. a kind of communication device, which is characterized in that described device includes: transmission unit and receiving unit；Wherein:

The transmission unit, for sending request message to session management network element, wherein the request message is for requesting distribution Identification information, the request message include the quantity N of the identification information of request distribution, N >=1；The identification information includes: media Access control MAC address, or, virtual local area network tags VLAN tag；

The receiving unit, for receiving N number of identification information of the session management network element distribution.

28. communication device as claimed in claim 27, which is characterized in that described device further include: first processing units；

The first processing units, for obtaining the second terminal equipment for thering is communication connection to connect with the first terminal equipment Quantity N；And

The first processing units are also used to using N number of identification information as the identification information of the second terminal equipment.

29. communication device as claimed in claim 27, which is characterized in that described device further include: the second processing unit；

Described the second processing unit, for obtaining the quantity K, K=of the second terminal equipment connecting with the first terminal equipment N-1, K >=1；And

Described the second processing unit is also used to believe an identification information in N number of identification information as the mark of itself Breath, and using K identification information in N number of identification information as the identification information of the second terminal equipment, and save The corresponding relationship of the identification information of the first terminal equipment and the K identification information.

30. a kind of communication system, which is characterized in that the system comprises: session management network element and user's veil member；Wherein:

The session management network element is used to obtain the session information of first terminal equipment and sends the session information to the use Family veil member, wherein the session information includes identification information and forward rule, and the identification information includes: media access control MAC Address processed, or, virtual local area network tags VLAN tag；

User's veil member is for receiving the session information；

User's veil member is also used to receive downlink data packet, carries identification information in the downlink data packet；

User's veil member is also used to be sent according to the identification information and the session information carried in the downlink data packet The downlink data packet.

31. communication system as claimed in claim 30, which is characterized in that the session information further includes session identification；

The session management network element is also used to receive the request of the session establishment from the first terminal equipment, wherein the meeting It includes the identification information and the session identification that words, which establish request,.

32. communication system as claimed in claim 31, it is characterised in that:

The session management network element is also used to receive the session modification request from the first terminal equipment, wherein the meeting Mark of the words modification request including the session identification and the third terminal equipment for having communication connection with the first terminal equipment Know information；

The session management network element is also used to send session modification request to user's veil member；

User's veil member is also used to receive session modification request；

User's veil member is also used to increase according to the session modification request received the mark letter of the third terminal equipment It ceases to the session information；

The session management network element is also used to send the first session modification and responds to the first terminal equipment.

33. communication system as claimed in claim 31, which is characterized in that the identification information include at least one described second The identification information of terminal device；

The session management network element is also used to receive the session modification request from the first terminal equipment, wherein the meeting Words modification request includes the identification information of the session identification and at least one the second terminal equipment for needing to delete；

User's veil member is also used to receive session modification request；

User's veil member is also used to delete the needs in the session information according to the session modification request received The identification information at least one the second terminal equipment deleted；

The session management network element is also used to send the second session modification and responds to the first terminal equipment.

34. communication system as claimed in claim 30, it is characterised in that:

The session management network element is also used to receive the request message from first terminal equipment, and the request message is for requesting Distribute the identification information of N number of second terminal equipment, N >=1；Wherein, the first terminal equipment and N number of second terminal equipment There is communication connection relationship；

The session management network element is also used to distribute N number of identification information；Or

The session management network element is also used to receive the request message from the first terminal equipment, and the request message is used for Request distributes N number of identification information, wherein and the N includes the quantity of the first terminal equipment and the quantity of second terminal equipment, N≥2；The first terminal equipment and the second terminal equipment have communication connection relationship；

The session management network element is also used to distribute N number of identification information.