CN109936506A - Data transmission method, equipment and system - Google Patents

Data transmission method, equipment and system Download PDF

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Publication number
CN109936506A
CN109936506A CN201711368645.0A CN201711368645A CN109936506A CN 109936506 A CN109936506 A CN 109936506A CN 201711368645 A CN201711368645 A CN 201711368645A CN 109936506 A CN109936506 A CN 109936506A
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path
mlan
target
terminal
multicast
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CN201711368645.0A
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CN109936506B (en
Inventor
姚琦
宗在峰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201711368645.0A priority Critical patent/CN109936506B/en
Priority to PCT/CN2018/119163 priority patent/WO2019120073A1/en
Publication of CN109936506A publication Critical patent/CN109936506A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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

Abstract

The embodiment of the present application provides data transmission method, equipment and system, can save transmission bandwidth under MLAN multicast scene.Method includes: that user plane functions entity receives the data packet from source device, wherein the data packet carries multicast information；User plane functions entity determines the path downlink information of the corresponding n multicast path of target mobile LAN MLAN；User plane functions entity sends the data packet to corresponding n access device respectively by the corresponding n multicast path of path downlink information of the n multicast path, and n is positive integer.

Description

Data transmission method, equipment and system
Technical field
This application involves field of communication technology more particularly to data transmission methods, equipment and system.
Background technique
Local area network (local area network, LAN) be in the geographic range of a part, such as a school, In factory and organ, various computers, external equipment and database etc. are linked up mutually to the computer communication network of composition.It It can be connected by data communication network or exclusive data circuit with the local area network in a distant place, database or processing center, constitute one A large-scale information processing system.With the appearance of newborn enterprise's office mode and intelligent home mode, wired lan and wireless LAN (wireless LAN, WLAN) shown its dispose complexity, flexibility, mobility, in terms of deficiency, This promotes lan technology developing deeply to adapt to demand of the following application to LAN.
Using itself wide covering feature of mobile network, directly to provide LAN and service, referred to as mobile LAN (mobile local area network, MLAN).MLAN can be used in wider mobile network's coverage area, i.e., No matter whether user is in same region, as long as same MLAN is added, data exchange or communication based on LAN can be realized.It utilizes The mobile network extensively covered, the creation of MLAN and its flexible migration adjustment can be automatically performed by mobile network, not needed Manual intervention.In addition, MLAN is on-demand customized, mutual security isolation between different MLAN.
Currently, under MLAN multicast scene, when user plane functions (user plane function, UPF) entity receives When to a data packet, the destination address of the data packet is replaced with to the addressable address of each terminal under the MLAN, further according to addressing Data packet is sent respectively under same MLAN by address of cache to the corresponding path in each terminal address address, by respective paths Each terminal.
However, in the data transmission method, if multiple terminals access identical access device, transmission bandwidth will be wasted. Therefore, how under MLAN multicast scene, transmission bandwidth is saved, is current urgent problem to be solved.
Summary of the invention
The embodiment of the present application provides data transmission method, equipment and system, and transmission can be saved under MLAN multicast scene Bandwidth.
In order to achieve the above objectives, the embodiment of the present application provides the following technical solutions:
In a first aspect, a kind of data transmission method is provided, this method comprises: user plane functions entity, which receives, comes from source device Data packet, wherein the data packet carry multicast information；The user plane functions entity determines that target mobile LAN MLAN is corresponding N multicast path path downlink information；The user plane functions entity passes through the path downlink information pair of the n multicast path The n multicast path answered sends the data packet to corresponding n access device respectively, and n is positive integer.Based on the embodiment of the present application The data transmission method of offer, can to avoid data packet in the prior art identical user plane functions entity and access device it Between repeat transmit the problem of, so as to the transmission bandwidth saved under MLAN multicast scene.
In a kind of possible design, which determines the road of the corresponding n multicast path of target MLAN Diameter downlink information, comprising: for the user plane functions entity according to the mark and the first corresponding relationship of target MLAN, determining should The path downlink information of the corresponding n multicast path of target MLAN, wherein first corresponding relationship includes the mark of target MLAN The corresponding relationship of the path downlink information of knowledge and the n multicast path.Since the first corresponding relationship includes the mark of target MLAN The mark of target MLAN therefore is known in user plane functions entity with the corresponding relationship of the path downlink information of the n multicast path In the case where knowledge, the corresponding n multicast path of target MLAN can quickly be determined according to first corresponding relationship Path downlink information.
In a kind of possible design, this method further include: the user plane functions entity, which receives, comes from session management entity First corresponding relationship.
In a kind of possible design, including the information of the first multicast path, this method in the information of the n multicast path Further include: the session management entity establishes first multicast path in target MLAN；The session management entity is to the user Face functional entity sends the corresponding relationship of the mark of target MLAN and the path downlink information of first multicast path.Namely It says, after session management entity establishes the first multicast path in target MLAN, user plane functions entity needs to obtain target The corresponding relationship of the path downlink information of the mark of MLAN and first multicast path.In turn, as described above, in user plane functions In the case that entity knows the mark of target MLAN, target MLAN can quickly be determined according to the first corresponding relationship The path downlink information of corresponding n multicast path.
It include first terminal, t in t target terminal corresponding with first multicast path in a kind of possible design For positive integer；The session management entity establishes first multicast path in target MLAN, comprising: in the first terminal at this During establishing MLAN session in target MLAN, in the case where not setting up first multicast path, the session management entity Establish first multicast path.That is, only being built between each access device and user plane functions entity in the implementation A multicast path is found, when terminal initiates MLAN session establishment process, if between access device and user plane functions entity It is set up multicast path, then does not need to resettle the corresponding path of session, so as to save Session Resources.
In a kind of possible design, the corresponding n multicast path of target MLAN is determined in the user plane functions entity Path downlink information after, further includes: the user plane functions entity according to the path downlink information of the n multicast path, with And second corresponding relationship, determine the road in the corresponding path of corresponding with the path downlink information of each multicast path target terminal Diameter downlink information, wherein second corresponding relationship includes path downlink information and the corresponding target end of each multicast path Hold the corresponding relationship of the path downlink information in corresponding path；The user plane functions entity passes through the path of the n multicast path The corresponding n multicast path of downlink information sends the road in the corresponding path of corresponding target terminal to corresponding access device respectively Diameter downlink information.Based on the program, access device can be made to receive each access device pair from user plane functions entity The corresponding path downlink information of the target terminal answered.In turn, access device can be according to the corresponding path of corresponding target terminal Downlink information sends the data to target terminal, realizes the data transmission under MLAN multicast scene.
In a kind of possible design, this method further include: the user plane functions entity, which receives, comes from session management entity Second corresponding relationship.
In a kind of possible design, including the road of the second multicast path in the path downlink information of the n multicast path Diameter downlink information includes second terminal in s target terminal corresponding with second multicast path, and s is positive integer；This method is also It include: that the session management entity establishes second multicast path path corresponding with the second terminal；The session management entity to The user plane functions entity send the mark of target MLAN and the path downlink information of second multicast path corresponding relationship, And the corresponding relationship of the path downlink information in the mark path corresponding with the second terminal of target MLAN.That is, In the implementation, when each terminal initiates MLAN session establishment process, it is corresponding that session can be established as the prior art Path.In addition, also needing to establish a multicast path between each access device and user plane functions entity, in this way, user Face functional entity can establish the path downlink information of multicast path and the path downlink information in the corresponding path of corresponding terminal Corresponding relationship, and then can be carried out data transmission according to the corresponding relationship.Which can repair existing procedure reducing Under the premise of changing, the data transmission under MLAN multicast scene is realized.
In a kind of possible design, which carries the mark of target MLAN.
In a kind of possible design, which includes source terminal, receives in the user plane functions entity and sets from source After standby data packet, further includes: the user plane functions entity according to the path uplink information in the corresponding path of the source terminal, with And third corresponding relationship, determine the mark of target MLAN, wherein the third corresponding relationship includes the corresponding path of the source terminal Path uplink information and target MLAN mark corresponding relationship.Based on which, user plane functions entity can be determined The mark of target MLAN.
In a kind of possible design, which includes server, receives in the user plane functions entity and sets from source After standby data packet, further includes: the user plane functions entity according to the path downlink information in the corresponding path of the server, with And the 4th corresponding relationship, determine the mark of target MLAN, wherein the 4th corresponding relationship includes the corresponding path of the server Path downlink information and target MLAN mark corresponding relationship.Based on which, user plane functions entity can be determined The mark of target MLAN.
Second aspect provides a kind of data transmission method, this method comprises: access device is come from by multicast path reception The data packet of user plane functions entity, wherein the data packet carries multicast information；The access device is distinguished to s target terminal Send the data packet, wherein the signing mobile LAN MLAN of the target terminal is identical as target MLAN, and target MLAN is hair Giving the MLAN where the source device of the data packet, s is positive integer.It, can based on data transmission method provided by the embodiments of the present application The problem of transmitting is repeated between identical user plane functions entity and access device to avoid data packet in the prior art, thus The transmission bandwidth under MLAN multicast scene can be saved.
In a kind of possible design, which sends the data packet to s target terminal respectively, comprising: this connects Enter equipment according to the mark and the first corresponding relationship of target MLAN, determine the information of the s target terminal, wherein this One corresponding relationship includes the corresponding relationship of the mark of target MLAN and the information of the s target terminal；The access device according to The information of the s target terminal sends the data packet to the s target terminal respectively.Since the first corresponding relationship includes target Therefore the corresponding relationship of the information of the mark and s target terminal of MLAN knows the mark of target MLAN in user plane functions entity In the case where knowledge, the information of s target terminal can quickly be determined according to first corresponding relationship.
In a kind of possible design, in the s target terminal include first terminal, this method further include: this first During terminal establishes MLAN session in target MLAN, the access device establish target MLAN mark and this first The information corresponding relationship of terminal.
In a kind of possible design, this method further include: establish MLAN meeting in target MLAN in the first terminal During words, in the case where having built up first multicast path, which is received from session management entity Notification message, the notification message are used to indicate the access device and establish the mark of target MLAN and the information pair of the first terminal It should be related to.That is, only establishing a multicast path in the implementation, between each access device and user plane functions entity Diameter, when terminal initiates MLAN session establishment process, if having built up multicast path between access device and user plane functions entity Diameter does not need then to resettle the corresponding path of session, so as to save Session Resources.
In a kind of possible design, this method further include: the access device is received by the multicast path and comes from the use The path downlink information in the corresponding path of s target terminal of family face functional entity；The access device divides to s target terminal Do not send the data packet, comprising: the access device according to the path downlink information in the corresponding path of s target terminal, and Second corresponding relationship determines the information of the s target terminal, wherein second corresponding relationship includes that the s target terminal is corresponding Path path downlink information and the s target terminal information corresponding relationship；The access device is whole according to the s target The information at end sends the data packet to the s target terminal respectively.That is, access device can root in the implementation Carry out data transmission according to the corresponding path downlink information of the s target terminal received and the second corresponding relationship.Which can Under the premise of reducing the modification to existing procedure, to realize the data transmission under MLAN multicast scene.
In a kind of possible design, in the s target terminal include second terminal, this method further include: this second During terminal establishes MLAN session in target MLAN, which establishes the road in the corresponding path of the second terminal The information corresponding relationship of diameter downlink information and the second terminal.
In a kind of possible design, which carries the mark of target MLAN.
In a kind of possible design, received by multicast path from the user plane functions entity in the access device After the data packet, further includes: the access device according to the path downlink information and third corresponding relationship of the multicast path, Determine the mark of target MLAN, wherein the third corresponding relationship includes the path downlink information and the target of the multicast path The corresponding relationship of MLAN mark.Based on which, access device can determine the mark of target MLAN.
The third aspect provides a kind of user plane functions entity, which, which has, realizes above-mentioned first party The function of method described in face.The function can also execute corresponding software realization by hardware realization by hardware.It should Hardware or software include one or more modules corresponding with above-mentioned function.
Fourth aspect provides a kind of user plane functions entity, comprising: processor and memory；The memory is for depositing Computer executed instructions are stored up, when user plane functions entity operation, which executes the computer of memory storage It executes instruction, so that the user plane functions entity executes the data transmission method as described in any in above-mentioned first aspect.
5th aspect, provides a kind of computer readable storage medium, finger is stored in the computer readable storage medium It enables, when run on a computer, computer is allowed to execute the biography of data described in any one of above-mentioned first aspect Transmission method.
6th aspect, provides a kind of computer program product comprising instruction, when run on a computer, so that Computer can execute data transmission method described in any one of above-mentioned first aspect.
7th aspect, provides a kind of chip system, which includes processor, for supporting that user plane functions are real Body realizes function involved in above-mentioned aspect, such as determines the path downlink information of the corresponding n multicast path of target MLAN. In a kind of possible design, the chip system further includes memory, the memory, for saving user plane functions entity Necessary program instruction and data.The chip system, can be made of chip, also may include chip and other discrete devices.
Wherein, third aspect technical effect brought by any design method into the 7th aspect can be found in first aspect Technical effect brought by middle different designs mode, details are not described herein again.
Eighth aspect provides a kind of access device, which, which has, realizes method described in above-mentioned second aspect Function.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software package Include one or more modules corresponding with above-mentioned function.
9th aspect, provides a kind of access device, comprising: processor and memory；The memory is calculated for storing Machine executes instruction, and when access device operation, which executes the computer executed instructions of memory storage, so that The access device executes the data transmission method as described in any in above-mentioned second aspect.
Tenth aspect, provides a kind of computer readable storage medium, finger is stored in the computer readable storage medium It enables, when run on a computer, computer is allowed to execute the biography of data described in any one of above-mentioned second aspect Transmission method.
Tenth on the one hand, and provide a kind of computer program product comprising instruction makes when run on a computer Data transmission method described in any one of above-mentioned second aspect can be executed by obtaining computer.
12nd aspect, provides a kind of chip system, which includes processor, for supporting that access device is real Function involved in existing above-mentioned aspect, such as during first terminal establishes MLAN session in target MLAN, establish The corresponding relationship of the information of the mark and first terminal of target MLAN.In a kind of possible design, the chip system is also wrapped Include memory, the memory, for saving the necessary program instruction of access device and data.The chip system, can be by core Piece is constituted, and also may include chip and other discrete devices.
Wherein, eighth aspect technical effect brought by any design method into the 12nd aspect can be found in first party Technical effect brought by different designs mode in face, details are not described herein again.
13rd aspect, provides a kind of data transmission system, including user plane functions entity described in any of the above-described aspect With access device described in n any of the above-described aspects, n is positive integer.
Wherein, these aspects of the application or other aspects can more straightforwards in the following description.
Detailed description of the invention
Fig. 1 is the configuration diagram of data transmission system provided by the embodiments of the present application；
Fig. 2 is application schematic diagram of the data transmission system provided by the embodiments of the present application in 5G network；
Fig. 3 is the hardware structural diagram of communication equipment provided by the embodiments of the present application；
Fig. 4 is the flow diagram one of data transmission method provided by the embodiments of the present application；
Fig. 5 is the flow diagram two of data transmission method provided by the embodiments of the present application；
Fig. 6 is the flow diagram three of data transmission method provided by the embodiments of the present application；
Fig. 7 is the configuration method flow diagram of the mark of MLAN provided by the embodiments of the present application；
Fig. 8 is the structural schematic diagram of user plane functions entity provided by the embodiments of the present application；
Fig. 9 is the structural schematic diagram of access device provided by the embodiments of the present application.
Specific embodiment
In order to facilitate the technical solution for understanding the embodiment of the present application, the brief introduction of the application the relevant technologies is provided first such as Under.
The mark (identity, ID) of first, MLAN:
The mark of MLAN is for identifying a MLAN example, i.e., one group equipment and user in logic.If MLAN is according to field Scape divides, such as enterprise-class, vehicle and extraneous communication (vehicle to everything communication, V2X), then A kind of MLAN scene can be identified by a MLAN type or data network title (Data network name, DNN), The mark of i.e. one MLAN is made of a scene identity+MLAN number, can unique identification in conjunction with scene identity and MLAN number Some MLAN example under a kind of MLAN scene.If DNN resource is sufficient, MLAN is not necessarily to according to scene partitioning, then MLAN Identify unique MLAN example under a corresponding DNN.Whether the following embodiments of the application are to according to scene partitioning MLAN not making to have Body limits, and is only illustrated by taking one MLAN example of mark energy unique identification of a MLAN as an example, particularly, MLAN ID can To be the ID in virtual LAN (virtual local area network, VLAN) technology.It is described collectively herein, with Under repeat no more.
In addition, the mark of MLAN can correspond to a specific service range in the embodiment of the present application, it can also be in the overall situation It can be used in range, the embodiment of the present application is not especially limited the corresponding service range of the mark of MLAN.
Second, tunnel:
Tunnel in the embodiment of the present application includes next generation network (next generation, N) interface 3 (abbreviation N3) tunnel Road and the tunnel N interface 9 (abbreviation N9).Wherein, the tunnel N3 is access device (such as base station) and user plane functions (user plane Function, UPF) tunnel between entity；Tunnel of the tunnel N9 between UPF entity and UPF entity.In general, the tunnel N3 is The tunnel of session granularity, the tunnel N9 can be the tunnel of session granularity, or the tunnel of equipment granularity.
Wherein, the tunnel of session granularity refers to, for the tunnel resource of a session establishment, which only supplies a session It uses.Wherein, the tunnel of a session granularity only includes a routing rule, and the only routing rule can correspond to the tunnel Forward data.In addition, the life cycle in the tunnel of session granularity is the life cycle of a session, i.e., when a session disappears or When release, the tunnel of session granularity is also required to discharge.
The tunnel of equipment granularity refers to that, for the tunnel resource of one or more session establishments, which can be for one Or multiple sessions use.Wherein, the tunnel of an equipment granularity may include one or more routing rule, and this or more A routing rule can correspond to tunnel forwarding data.In addition, the life cycle in the tunnel of equipment granularity is that the tunnel is corresponding Multiple sessions life cycle, i.e. the tunnel of hypothesis equipment granularity correspond to M session, and M is the positive integer not less than 2, then when Preceding M-1 session in the corresponding multiple sessions in the tunnel disappears or when release, only discharges the corresponding routing rule of corresponding session； When the m-th session in the corresponding multiple sessions in the tunnel disappears or discharges, the tunnel of equipment granularity is likely to discharge.When So, when the m-th session in the corresponding multiple sessions in the tunnel disappears or release, the tunnel of the equipment granularity can also be retained Road does not need to re-establish the tunnel so as to subsequent, and the embodiment of the present application is not especially limited this.
Optionally, the session in the embodiment of the present application for example can be Packet Data Unit (packet data unit, PDU) session, the embodiment of the present application are not especially limited this.
Third, routing information:
Routing information in the embodiment of the present application may include at least one in path uplink information and path downlink information It is a, for establishing the path between A and B.Wherein, path uplink information may include end-point addresses or endpoint of the path in the side A Mark and the address of A etc., path downlink information may include end-point addresses or Endpoint ID and B of the path in the side B Address etc., the embodiment of the present application is not especially limited this.
Optionally, the path uplink information in the embodiment of the present application can also be referred to as up path information or other, this Application embodiment in path downlink information can also be referred to as downlink path information or other, the embodiment of the present application does not make this It is specific to limit.
Optionally, the path in the embodiment of the present application may include above-mentioned tunnel, also may include other paths, this Shen Please embodiment this is not especially limited.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.Its In, in the description of the present application, unless otherwise indicated, "/" indicate or the meaning, for example, A/B can indicate A or B；Herein "and/or" be only a kind of incidence relation for describing affiliated partner, indicate may exist three kinds of relationships, for example, A and/or B, Can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Also, in the description of the present application, remove Non- to be otherwise noted, " multiple " refer to two or more.In addition, for the ease of clearly describing the technical side of the embodiment of the present application Case, in embodiments herein, use the printed words such as " first ", " second " to function and act on essentially identical identical entry or Similar item distinguishes.It will be appreciated by those skilled in the art that the printed words such as " first ", " second " are not to quantity and execution order It is defined, and the printed words such as " first ", " second " also do not limit certain difference.
The network architecture and business scenario of the embodiment of the present application description are to more clearly illustrate that the application is implemented The technical solution of example, does not constitute the restriction for technical solution provided by the embodiments of the present application, those of ordinary skill in the art It is found that technical solution provided by the embodiments of the present application is for similar with the differentiation of the network architecture and the appearance of new business scene The technical issues of, it is equally applicable.
As shown in Figure 1, being the configuration diagram of data transmission system 10 provided by the embodiments of the present application.The data transmission system System 10 includes user plane functions entity 101 and n access device 102, n are positive integer.N access device 102 for example can wrap Include the first access device 1021, the second access device 1022 ..., the n-th access device 102n etc..
Wherein, user plane functions entity 101, for receiving the data packet from source device, wherein the data packet carrying group Broadcast information.The multicast information specifically can be a multicast address or an indicator, be used to indicate the data packet need with Multicast form is sent to target terminal, and the embodiment of the present application is not especially limited this.
User plane functions entity 101 is also used to determine the path downlink information of the corresponding n multicast path of target MLAN. Wherein, target MLAN is the MLAN where source device.
User plane functions entity 101 is also used to the corresponding n multicast path of path downlink information by n multicast path Diameter sends the data packet to corresponding n access device respectively.
Each access device in n access device 102 comes from user plane functions entity for receiving by multicast path 101 data packet, and the data packet is sent respectively to the corresponding s target terminal of the access device, s is positive integer.
Wherein, in the embodiment of the present application, the signing MLAN of target terminal is identical as target MLAN, is described collectively herein, with Under repeat no more.
Optionally, in the embodiment of the present application, in the path downlink information of n multicast path under the path of each multicast path Row information includes the information of corresponding access device, for example the address of corresponding access device, the embodiment of the present application do not make this It is specific to limit.
Optionally, in the embodiment of the present application, the target terminal for accessing identical access device corresponds to the same multicast path.When So, the target terminal for accessing identical access device can also correspond to multiple multicast paths, and the embodiment of the present application is not made this specifically It limits.
Optionally, the source device in the embodiment of the present application may include source terminal or server etc., the embodiment of the present application This is not especially limited.
Optionally, in the embodiment of the present application, each access in user plane functions entity 101 and n access device 102 is set It can also can be communicated by the forwarding of other equipment with direct communication between standby, the embodiment of the present application is not made this specifically It limits.
Optionally, the multicast in the embodiment of the present application also could alternatively be multicast or broadcast, the embodiment of the present application to this not Make specific limit.
It should be noted that data transmission system shown in FIG. 1 is illustrated so that n is greater than 1 as an example, it is practical to realize process In, n can be equal to 1, be described collectively herein, the embodiment of the present application is not especially limited this.
Based on data transmission system provided by the embodiments of the present application, since user plane functions entity is being received from source device Data packet after, can determine the path downlink information of the corresponding n multicast path of target MLAN, and then pass through n multicast The corresponding n multicast path of the path downlink information in path sends the data packet to corresponding n access device respectively, by accessing Equipment is after receiving the data packet from user plane functions entity by multicast path, to the corresponding s mesh of the access device Mark terminal sends the data packet respectively, therefore in identical user plane functions entity and can connect to avoid data packet in the prior art Enter and repeat the problem of transmitting between equipment, so as to the transmission bandwidth saved under MLAN multicast scene.
Optionally, above-mentioned data transmission system 10 can be applied to the 5th generation (5th generation, 5G) network and The following others network, the embodiment of the present application are not especially limited this.
Wherein, to include the first access device in n access device, the corresponding target terminal of the first access device includes eventually For end 1 and terminal 2, if above-mentioned data transmission system 10 is applied to 5G network, as shown in Fig. 2, user plane functions entity 101 Corresponding network element or entity can be UPF entity；Network element corresponding to first access device 102 or entity can be first Access net (access network, AN) equipment.Wherein, terminal 1 and terminal 2 pass through the first AN equipment access network.First AN Equipment passes through N3 interface (abbreviation N3) and UPF entity communication.
In addition, as shown in Fig. 2, the 5G network can also include access and mobile management function (Access and Mobility Management Function, AMF) entity, conversation management functional (session management Function, SMF) entity and source device.Terminal 1 and terminal 2 pass through N1 interface (abbreviation N1) and AMF entity communication；AN is set It is standby to pass through N2 interface (abbreviation N2) and AMF entity communication；AMF entity passes through N11 interface (abbreviation N11) and SMF entity communication.
Although it is not shown, the 5G network can also include uniform data management (unified data management, UDM) entity, authentication server function (authentication server function, AUSF) entity, policy control functions (policy control function, PCF) entity etc., the embodiment of the present application is not especially limited this.
It should be noted that the interface name between each network element in Fig. 2 is an example, interface in specific implementation Name may be other names, and the embodiment of the present application is not especially limited this.
It should be noted that the first AN equipment, AMF entity, SMF entity and the UPF entity etc. of Fig. 2 are only a names, Name does not constitute restriction to equipment itself.In 5G network and following other networks, the first AN equipment, AMF entity, SMF Network element corresponding to entity and UPF entity or entity are also possible to other names, and the embodiment of the present application does not limit this specifically It is fixed.For example, the UPF entity it is also possible to be replaced by UPF, etc., be described collectively herein, repeated no more below.
Optionally, terminal (terminal) involved in the embodiment of the present application may include various with wireless communication The handheld device of function, wearable device, calculates equipment or is connected to other processing of radio modem and set mobile unit It is standby；It can also include subscriber unit (subscriber unit), cellular phone (cellular phone), smart phone (smart phone), wireless data card, are put down at personal digital assistant (personal digital assistant, PDA) computer Template computer, radio modem (modem), handheld device (handheld), laptop computer (laptop Computer), wireless phone (cordless phone) or wireless local loop (wireless local loop, WLL) Platform, machine type communication (machine type communication, MTC) terminal, user equipment (user equipment, UE), mobile station (mobile station, MS), terminal device (terminal device) etc..For convenience of description, the application In, apparatus mentioned above is referred to as terminal.
Optionally, the equipment that access device involved in the embodiment of the present application refers to core network access, such as can To be base station, broadband network Service Gateway (broadband network gateway, BNG), convergence switch, the non-third generation Partner program (3rd generation partnership project, 3GPP) access device etc..Base station may include Various forms of base stations, such as: macro base station, micro-base station (also referred to as small station), relay station, access point etc..
Optionally, UPF entity involved in the embodiment of the present application is in addition to having user plane functions entity shown in FIG. 1 Function, can also be achieved gateway (serving gateway, SGW) and grouped data network gateway (packet data Network gateway, PGW) user plane functions.In addition, the UPF entity can also be software defined network (software Defined network, SDN) interchanger (Switch), the embodiment of the present application is not especially limited this.
Optionally, the user plane functions entity in Fig. 1 or access device can be realized by an entity device, can also be by Multiple entity devices are realized jointly, can also be a logic functional block in an entity device, the embodiment of the present application pair This is not especially limited.
For example, the user plane functions entity or access device in Fig. 1 can be realized by the communication equipment in Fig. 3.Fig. 3 It show the hardware structural diagram of communication equipment provided by the embodiments of the present application.The communication equipment 300 includes at least one Manage device 301, communication line 302, memory 303 and at least one communication interface 304.
Processor 301 can be a general central processor (central processing unit, CPU), micro process Device, application-specific integrated circuit (application-specific integrated circuit, ASIC) or one or more A integrated circuit executed for controlling application scheme program.
Communication line 302 may include an access, and information is transmitted between said modules.
Communication interface 304, using the device of any transceiver one kind, for other equipment or communication, such as Ethernet, wireless access network (radio access network, RAN), WLAN (wireless local area Networks, WLAN) etc..
Memory 303 can be read-only memory (read-only memory, ROM) or can store static information and instruction Other kinds of static storage device, random access memory (random access memory, RAM) or letter can be stored The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (electrically Erasable programmable read-only memory, EEPROM), CD-ROM (compact disc read- Only memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this. Memory, which can be, to be individually present, and is connected by communication line 302 with processor.Memory can also be integrated in processor Together.
Wherein, memory 303 be used for store execution application scheme computer executed instructions, and by processor 301 Control executes.Processor 301 is for executing the computer executed instructions stored in memory 303, to realize that the application is following The data transmission method that embodiment provides.
Optionally, the computer executed instructions in the embodiment of the present application can also be referred to as application code, the application Embodiment is not especially limited this.
In the concrete realization, as one embodiment, processor 301 may include one or more CPU, such as in Fig. 3 CPU0 and CPU1.
In the concrete realization, as one embodiment, communication equipment 300 may include multiple processors, such as in Fig. 3 Processor 301 and processor 308.Each of these processors can be monokaryon (single-CPU) processor, It can be multicore (multi-CPU) processor.Here processor can refer to one or more equipment, circuit, and/or use In the processing core of processing data (such as computer program instructions).
In the concrete realization, as one embodiment, communication equipment 300 can also include that output equipment 305 and input are set Standby 306.Output equipment 305 and processor 301 communicate, and can show information in many ways.For example, output equipment 305 can To be liquid crystal display (liquid crystal display, LCD), Light-Emitting Diode (light emitting diode, LED equipment) is shown, cathode-ray tube (cathode ray tube, CRT) shows equipment or projector (projector) etc.. Input equipment 306 and processor 301 communicate, and can receive the input of user in many ways.For example, input equipment 306 can be with It is mouse, keyboard, touch panel device or sensing equipment etc..
Above-mentioned communication equipment 300 can be a common apparatus either special equipment.In the concrete realization, lead to Letter equipment 300 can be desktop computer, portable computer, network server, palm PC (personal digital Assistant, PDA), cell phone, tablet computer, wireless terminal device, embedded device or have setting for similar structures in Fig. 3 It is standby.The embodiment of the present application does not limit the type of communication equipment 300.
Data transmission method provided by the embodiments of the present application is specifically addressed below in conjunction with Fig. 1 to Fig. 3.
It should be noted that each parameter in message name or message in the following embodiments of the application between each network element Name is an example, is also possible to other names in specific implementation, the embodiment of the present application is not especially limited this.
By taking data transmission system shown in FIG. 1 is applied to 5G network as shown in Figure 2 as an example, as shown in figure 4, being the application A kind of data transmission method that embodiment provides, this method comprises the following steps:
S401, SMF entity determine the corresponding multicast path of mark for establishing MLAN.
Optionally, in the embodiment of the present application, network management network element can incite somebody to action after detecting new MLAN signing information Signing information is sent to SMF entity, and then SMF entity can determine the corresponding multicast path of mark for establishing MLAN.Wherein, should Network management network element for example can be Operation Support System (operations support system, OSS).
S402, SMF entity pre-establish the corresponding multicast path of mark of MLAN.
Optionally, SMF entity can pre-establish the corresponding multicast path of mark of MLAN in the following way:
SMF entity is after selecting UPF entity according to the mark of MLAN, and determination needs to establish UPF entity and n access is set N multicast path between standby.In turn, mode is established referring to the existing tunnel N3, establishes UPF entity and n access respectively Different access devices in equipment establish different multicast paths.For example, for UPF entity in n articles of multicast path and the first AN Multicast path 1 between equipment, UPF entity can send the path uplink of multicast path 1 by SMF entity to the first AN equipment Information, the path uplink information of the multicast path 1 include end-point addresses or Endpoint ID of the multicast path 1 in UPF entity side, with And address of UPF entity etc..Wherein, end-point addresses or Endpoint ID of the multicast path 1 in UPF entity side can be by SMF It is sent to UPF entity after entity distribution, is also possible to be distributed by UPF entity, the embodiment of the present application does not limit this specifically It is fixed.Further, the first AN equipment can distribute multicast path 1 in the end-point addresses or Endpoint ID of the first AN equipment side, into And the path downlink information of multicast path 1 is sent to UPF entity by SMF entity, the path downlink information packet of the multicast path 1 The multicast path 1 is included in the end-point addresses of the first AN equipment side or the address etc. of Endpoint ID and the first AN equipment, so far, Multicast path 1 between UPF entity and the first AN equipment, which is established, to be completed.
S403, UPF entity store the corresponding relationship of the mark of MLAN and the path downlink information of n multicast path.
Optionally, in the embodiment of the present application, the corresponding relationship of the path downlink information of the mark and n multicast path of MLAN Can be by SMF entity establish after be sent to UPF entity, be also possible to UPF entity foundation, the embodiment of the present application to this not Make specific limit.
For convenience of description, the embodiment of the present application can be by the path downlink information of the mark of MLAN and n multicast path Corresponding relationship is denoted as corresponding relationship 1, is described collectively herein, repeats no more below.Wherein, which can be such as table one:
Table one
The mark of MLAN The path downlink information of multicast path
MLAN1 The path downlink information of multicast path 1
MLAN1 The path downlink information of multicast path 2
…… ……
MLAN1 The path downlink information of multicast path m
Certainly, in above-mentioned table one, since the path downlink of the path downlink information of multicast path 1, multicast path 2 is believed Breath ..., the mark of the corresponding MLAN of path downlink information of multicast path n it is identical, therefore can also be by different multicast paths The mark of the corresponding MLAN of path downlink information merge, as a result as shown in Table 2, the embodiment of the present application does not make this to have Body limits.
Table two
Optionally, the embodiment of the present application is illustrated so that corresponding relationship is characterized in table form as an example, certainly, right It should be related in addition to characterizing in table form, can also characterize otherwise, such as textual form or session context form Deng the embodiment of the present application is not especially limited this.
Optionally, in the embodiment of the present application, after the corresponding multicast path of mark that SMF entity establishes MLAN, multicast The corresponding access device in path also can establish the corresponding relationship of the mark of MLAN and the path uplink information of the multicast path, than Such as, for the corresponding first AN equipment of multicast path 1, the mark of MLAN and the path uplink information of multicast path 1 be can establish Corresponding relationship.
For convenience of description, the embodiment of the present application can be by pair of the mark of MLAN and the path downlink information of multicast path 1 It should be related to and be denoted as corresponding relationship 2, be described collectively herein, repeat no more below.Wherein, which can be such as table three:
Table three
The mark of MLAN The path downlink information of multicast path 1
S404a, terminal 1 send the request of MLAN session establishment to AMF entity, so that AMF entity, which receives, carrys out self terminal 1 The request of MLAN session establishment.Wherein, the mark and the first AN equipment for the MLAN that MLAN session establishment request carried terminal 1 is contracted Address.
Wherein, the address of the first AN equipment can be characterized by the location information of terminal 1, and the embodiment of the present application is to this It is not especially limited.
Wherein, the configuration process of the mark for the MLAN that terminal 1 is contracted will illustrate in the following embodiments, no longer superfluous herein It states.
Optionally, in the embodiment of the present application, if the mark for the MLAN that terminal 1 is contracted corresponds to specific service range, eventually The information of the corresponding regions of particular service of mark of the MLAN is also configured in end 1.In this way, terminal 1 can be according to the mark of the MLAN The information for knowing corresponding regions of particular service is sent in the corresponding regions of particular service of mark of the MLAN to AMF entity The request of MLAN session establishment.Certainly, if mark corresponding regions of particular service extroversion AMF entity of the terminal 1 in the MLAN is sent The request of MLAN session establishment, then AMF entity or SMF entity can be in the current locations for determining the terminal 1 not in the mark of the MLAN After knowing within corresponding regions of particular service, the MLAN session establishment request that refusal terminal 1 is sent, the embodiment of the present application is to this It is not especially limited.The embodiment of the present application is only said so that terminal 1 has initiated a normal MLAN session establishment process as an example Bright, i.e. when the mark of the MLAN of the signing of terminal 1 can be used in global scope, terminal 1 sends MLAN session establishment to AMF entity and asks It asks；Alternatively, when the mark for the MLAN that terminal 1 is contracted corresponds to specific service range, the mark for the MLAN that terminal 1 is contracted in terminal 1 Know and send the request of MLAN session establishment in corresponding regions of particular service, is described collectively, is repeated no more below herein.
S405a, AMF entity selection SMF entity.
Wherein, the concrete mode of AMF entity selection SMF entity can refer to existing scheme, and it will not be described here.
S406a, AMF entity send MLAN session establishment request to SMF entity, so that SMF entity, which receives, comes from AMF The MLAN session establishment of entity is requested.
The determination of S407a, SMF entity has built up the corresponding multicast path of the first AN equipment.
Illustratively, it is assumed that the corresponding multicast path of the first AN equipment is above-mentioned multicast path 1, then SMF entity can be with According to the address of the first AN equipment and above-mentioned table one, determination has built up the corresponding multicast path of the first AN equipment.
Optionally, in the embodiment of the present application, SMF entity can also obtain the mark for the MLAN that terminal 1 is contracted from UDM entity Know, and determines that the mark of the MLAN carried in the request of MLAN session establishment is identical as the mark of MLAN that the terminal 1 is contracted.If The mark of the MLAN carried in the request of MLAN session establishment is identical as the mark of MLAN that the terminal 1 is contracted, and can determine MLAN The mark of the MLAN carried in session establishment request is the mark for the MLAN that terminal 1 is contracted, and then can execute follow-up process；If The mark of the MLAN carried in the request of MLAN session establishment is different from the mark of MLAN that the terminal 1 is contracted, and can determine MLAN The mark of the MLAN carried in session establishment request is not the mark for the MLAN that terminal 1 is contracted, and process terminates, the embodiment of the present application This is not especially limited.
S408a, SMF entity are to the first AN equipment dispatch order message, so that the first AN equipment, which receives, comes from SMF entity Notification message, which is used to indicate the corresponding relationship that the first AN equipment establishes the mark of MLAN and the information of terminal 1.
Optionally, in the embodiment of the present application, the information of terminal 1 specifically refers to the air interface transmission information of terminal 1, may include The air interface transmission of terminal 1 identifies, air interface transmission mark for example can be Data Radio Bearer (data radio bearer, DRB it) identifies, the embodiment of the present application is not especially limited this.
For convenience of description, the corresponding relationship of the mark of MLAN and the information of terminal 1 can be denoted as pair by the embodiment of the present application It should be related to 3, be described collectively herein, repeat no more below.Wherein, which can be such as table four:
Table four
The mark of MLAN The information of terminal 1
The corresponding relationship of the information of S409a, the mark of the first AN equipment storage MLAN and terminal 1.
S404b-S409b, similar with step S404a-S409a, difference is only that, in step S404b-S409b, by step Terminal in S404a-S409a is changed to terminal 2 for 1, specifically refers to step S404a-S409a, details are not described herein.
Wherein, in step S409b, the first AN equipment establishes the mark of MLAN and the corresponding relationship of the information of terminal 2 can To be denoted as corresponding relationship 4, it is described collectively, repeats no more below herein.Wherein, wherein the corresponding relationship 4 can be such as five institute of table Show:
Table five
The mark of MLAN The information of terminal 2
Optionally, in the embodiment of the present application, the first AN equipment can also safeguard mark and the end of MLAN as shown in Table 6 The corresponding relationship 5 of the information at end, during terminal 1 establishes MLAN session, the first AN equipment receives logical from SMF entity After knowing message, corresponding relationship 5 can be updated, the mark of MLAN is added in corresponding relationship 5 and the corresponding of the information of terminal 1 is closed System；It is similar, during terminal 2 establishes MLAN session, the first AN equipment receive the notification message from SMF entity it Afterwards, corresponding relationship 5 can be updated, adds the corresponding relationship of the mark of MLAN and the information of terminal 2, in corresponding relationship 5 with this Analogize, the embodiment of the present application is not especially limited this.
Table six
It should be noted that not having between step S404a-S409a and step S404b-S409b in the embodiment of the present application Inevitable execution sequencing, can be and first carry out step S404a-S409a, then execute step S404b-S409b；It is also possible to Step S404b-S409b is first carried out, then executes step S404a-S409a；Be also possible to be performed simultaneously step S404a-S409a and Step S404b-S409b, the embodiment of the present application are not especially limited this.
S410, source device send data packet to UPF entity, so that UPF entity receives the data packet from source device.Its In, which carries multicast information.The associated description of the multicast information can refer to above-described embodiment, and details are not described herein.
Optionally, in the embodiment of the present application, which can carry the address information of source device as source address, carry Multicast address is not especially limited this as destination address, the embodiment of the present application.
Optionally, in the embodiment of the present application, which can also carry the mark of target MLAN, and target MLAN is source MLAN where equipment, the embodiment of the present application are not especially limited this.
S411, UPF entity determine the path downlink information of the corresponding n multicast path of target MLAN.
Specifically, assuming that target MLAN's is identified as MLAN1, then UPF entity can determine target according to table one or table two The path downlink information of the corresponding n multicast path of MLAN.
Optionally, the mark of the target MLAN in the embodiment of the present application, which can be, carries in the packet, is also possible to UPF entity receives what the data packet from source device determined later, and the embodiment of the present application is not especially limited this.
For example, if source device be source terminal, UPF entity can according to the corresponding path uplink information of source terminal, and The corresponding relationship of source terminal corresponding path uplink information and target MLAN, determines the mark of target MLAN；
Alternatively, for example, if source device be server, UPF entity can according to the corresponding path downlink information of server, And the corresponding relationship of server corresponding path downlink information and target MLAN, determine the mark of target MLAN.
How the embodiment of the present application knows that the mark of target MLAN is not especially limited to UPF entity.
Assuming that the corresponding first AN equipment of multicast path 1 in n multicast path, then data provided by the embodiments of the present application pass Transmission method further includes following steps:
S412, UPF entity are sent out by the corresponding multicast path 1 of path downlink information of multicast path 1 to the first AN equipment The data packet is given, so that the first AN equipment receives the data packet from UPF entity by multicast path 1.
S413, the first AN equipment determine the information of corresponding s target terminal, and s is positive integer.
Assuming that the corresponding target terminal of multicast path 1 includes terminal 1 and terminal 2, then the first AN equipment is being received from UPF , can be according to table four and table five after the data packet of entity, or according to table six, determine the information of corresponding s target terminal. S=2 at this time, the information of corresponding 2 target terminals respectively include the information of terminal 1 and the information of terminal 2.
Optionally, the mark of the target MLAN in the embodiment of the present application, which can be, carries in the packet, is also possible to First AN entity receives what the data packet from UPF entity determined later by multicast path 1, and the embodiment of the present application does not make this It is specific to limit.
For example, the first AN equipment can corresponding relationship shown in the path downlink information and table three according to multicast path 1 2, determine how the mark of target MLAN, the embodiment of the present application know that the mark of target MLAN does not limit specifically to the first AN equipment It is fixed.
S414a, the first AN equipment send data packet to terminal 1 according to the information of terminal 1, so that the reception of terminal 1 comes from The data packet of first AN equipment.
S414b, the first AN equipment send data packet to terminal 2 according to the information of terminal 2, so that the reception of terminal 2 comes from The data packet of first AN equipment.
It should be noted that in the embodiment of the present application, do not have inevitable to execute elder generation between step S414a and step S414b Sequence afterwards, can be and first carry out step S414a, then execute step S414b；It is also possible to first carry out step S414b, then executes step Rapid S414a；It is also possible to be performed simultaneously step S414a and step S414b, the embodiment of the present application is not especially limited this.
It should be noted that the step S412-S414b in the embodiment of the present application gives the processing for multicast path 1 Mode, certainly, for other multicast paths in n multicast path, according to the above-mentioned processing mode for multicast path 1 into Row processing, this is no longer going to repeat them.
It, can be to avoid data packet in the prior art in identical use based on data transmission method provided by the embodiments of the present application The problem of transmitting is repeated between family face functional entity and access device, so as to the transmission belt saved under MLAN multicast scene It is wide.The relevant technologies effect analysis can refer to system embodiment, and details are not described herein.
Wherein, the movement of above-mentioned steps S401 UPF entity and the first AN equipment into S414b can lead to as shown in Figure 3 Processor 301 in letter equipment 300 calls the application code stored in memory 303 to execute, the embodiment of the present application pair This is not intended to be limited in any.
Optionally, by taking data transmission system shown in FIG. 1 is applied to 5G network as shown in Figure 2 as an example, as shown in figure 5, For another data transmission method provided by the embodiments of the present application, this method comprises the following steps:
S501-S503, with step S404a-S406a, specifically refer to embodiment shown in Fig. 4, details are not described herein.
The determination of S504, SMF entity does not set up the corresponding multicast path of the first AN equipment.
S505, SMF entity establish the corresponding multicast path 1 of the first AN equipment.
Wherein, the mode that SMF entity establishes the corresponding multicast path 1 of the first AN equipment can refer to the correlation in step S402 Description, details are not described herein.
S506, similar with step S403, difference is in step S403, and UPF entity stores the mark and m multicast of MLAN The corresponding relationship of the path downlink information in path, in the embodiment of the present application, UPF entity stores the mark and multicast path 1 of MLAN Path downlink information corresponding relationship, associated description can refer to embodiment shown in Fig. 4, and details are not described herein.
The corresponding relationship of the information of S507, the mark of the first AN equipment storage MLAN and terminal 1.
Wherein, the associated description of the corresponding relationship of the information of the mark and terminal 1 of MLAN can refer to embodiment shown in Fig. 4 In corresponding relationship 3, details are not described herein for the embodiment of the present application.
It should be noted that the step S501-S507 in the embodiment of the present application give establish MLAN mark it is corresponding 1 mode of multicast path, certainly, other multicast paths corresponding for the mark of the MLAN can also establish multicast according to above-mentioned The mode in path 1 is handled, and this is no longer going to repeat them.Wherein, it is established in the corresponding m multicast path of the mark of the MLAN After the completion, UPF entity can store the corresponding relationship 1 as shown in table one or table two.
S508-S518b, with step S404b-S414b, specifically refer to embodiment shown in Fig. 4, details are not described herein.
It, can be to avoid data packet in the prior art in identical use based on data transmission method provided by the embodiments of the present application The problem of transmitting is repeated between family face functional entity and access device, so as to the transmission belt saved under MLAN multicast scene It is wide.The relevant technologies effect analysis can refer to system embodiment, and details are not described herein.
Wherein, the movement of above-mentioned steps S501 UPF entity and the first AN equipment into S518b can lead to as shown in Figure 3 Processor 301 in letter equipment 300 calls the application code stored in memory 303 to execute, the embodiment of the present application pair This is not intended to be limited in any.
Optionally, by taking data transmission system shown in FIG. 1 is applied to 5G network as shown in Figure 2 as an example, as shown in fig. 6, For another data transmission method provided by the embodiments of the present application, this method comprises the following steps:
S601a-S603a, with step S404a-S406a, specifically refer to embodiment shown in Fig. 4, details are not described herein.
S604a, SMF entity selection UPF entity.
Wherein, the concrete mode of SMF entity selection UPF entity can refer to existing scheme, and it will not be described here.
S605a, SMF entity send N4 conversation message to UPF entity, so that UPF entity receives the N4 from SMF entity Conversation message.Wherein, the mark of the MLAN of the N4 conversation message carried terminal 1 signing.
S606a, UPF entity send the path uplink information in the corresponding path of terminal 1 to the first AN equipment, so that first The path uplink information in terminal 1 corresponding path of the AN equipment reception from UPF entity.
Wherein, in the embodiment of the present application, the corresponding path of terminal 1 specifically refers to the corresponding UPF entity of terminal 1 and the first AN The tunnel N3 between equipment, is described collectively herein, repeats no more below.
Optionally, in the embodiment of the present application, the path uplink information in the corresponding path of terminal 1 be can be by SMF entity point Match, is also possible to be distributed by UPF entity, the embodiment of the present application is not especially limited this.
Optionally, in the embodiment of the present application, the path uplink information in the corresponding path of terminal 1 includes the path in UPF reality The end-point addresses or Endpoint ID on side and the address of UPF entity etc., the embodiment of the present application is not especially limited this.
Optionally, in the embodiment of the present application, UPF entity can store the mark of MLAN and the road in the corresponding path of terminal 1 The corresponding relationship of diameter uplink information, the embodiment of the present application are not especially limited this.
S607a, the first AN equipment send the path downlink information in the corresponding path of terminal 1 to UPF entity, so that UPF The path downlink information in terminal 1 corresponding path of the entity reception from the first AN equipment.
Optionally, in the embodiment of the present application, the path downlink information in the corresponding path of terminal 1 includes the path in the first AN The end-point addresses or Endpoint ID of equipment side and the address etc. of the first AN equipment, the embodiment of the present application do not limit this specifically It is fixed.
The correspondence of the information of S608a, the path downlink information in the first AN equipment storage corresponding path of terminal 1 and terminal 1 Relationship.
For convenience of description, the embodiment of the present application can be by the letter of the path downlink information in the corresponding path of terminal 1 and terminal 1 The corresponding relationship of breath is denoted as corresponding relationship 6, is described collectively herein, repeats no more below.Wherein, which can be such as table Seven:
Table seven
The path downlink information in the corresponding path of terminal 1 The information of terminal 1
S609a, UPF entity store the corresponding relationship of the mark of MLAN and the path downlink information in the corresponding path of terminal 1.
For convenience of description, the embodiment of the present application can be by the mark of the path downlink information in the corresponding path of terminal 1 and MLAN The corresponding relationship of knowledge is denoted as corresponding relationship 7, is described collectively herein, repeats no more below.Wherein, which can be such as table Eight:
Table eight
The mark of MLAN The path downlink information in the corresponding path of terminal 1
It should be noted that there is no inevitable execution successively suitable between step S607a and S608a in the embodiment of the present application Sequence can be and first carry out step S607a, then execute step S608a；It is also possible to first carry out step S608a, then executes step S607a；It can also be and be performed simultaneously step S607a and S608a, the embodiment of the present application is not especially limited this.
S601b-S609b, similar with step S601a-S609a, difference is only that, in step S601b-S609b, by step Terminal in S601a-S609a is changed to terminal 2 for 1, specifically refers to step S601a-S609a, details are not described herein.
Wherein, in step S608b, the path downlink information in the corresponding path of terminal 2 of the first AN equipment storage and end The corresponding relationship of the information at end 2 is denoted as corresponding relationship 8, is described collectively, repeats no more herein below.Wherein, which can With such as table nine:
Table nine
The path downlink information in the corresponding path of terminal 2 The information of terminal 2
Wherein, in step S609b, the mark of the MLAN of UPF entity storage and the path downlink in the corresponding path of terminal 2 The corresponding relationship of information is denoted as corresponding relationship 9, is described collectively herein, repeats no more below.Wherein, which can be as Table ten:
Table ten
The mark of MLAN The path downlink information in the corresponding path of terminal 2
Optionally, in the embodiment of the present application, the first AN equipment can also be safeguarded such as the corresponding road of terminal shown in table 11 The corresponding relationship 10 of the information of the path downlink information and terminal of diameter, during terminal 1 establishes MLAN session, the first AN is set It is standby to update corresponding relationship 10 after obtaining the information of path downlink information and terminal 1 in the corresponding path of terminal 1, The corresponding relationship of the path downlink information in the corresponding path of terminal 1 and the information of terminal 1 is added in corresponding relationship 10；Similar, During terminal 2 establishes MLAN session, the first AN equipment is at path downlink information and the end for obtaining the corresponding path of terminal 2 After the information at end 2, corresponding relationship 10 can be updated, the path downlink in the corresponding path of terminal 2 is added in corresponding relationship 10 The corresponding relationship of the information of information and terminal 2, and so on, the embodiment of the present application is not especially limited this.
Table 11
The path downlink information in the corresponding path of terminal The information of terminal
The path downlink information in the corresponding path of terminal 1 The information of terminal 1
The path downlink information in the corresponding path of terminal 2 The information of terminal 2
…… ……
It should be noted that not having between step S601a-S609a and step S601b-S609b in the embodiment of the present application Inevitable execution sequencing, can be and first carry out step S601a-S609a, then execute step S601b-S609b；It is also possible to Step S601b-S609b is first carried out, then executes step S601a-S609a；Be also possible to be performed simultaneously step S601a-S609a and Step S601b-S609b, the embodiment of the present application are not especially limited this.
S610, SMF entity determine the corresponding multicast path of mark for establishing MLAN.
Optionally, in the embodiment of the present application, SMF entity, which can be, detects new MLAN signing letter in network management network element After breath, signing information is sent to SMF entity, and then SMF entity can determine the corresponding multicast path of mark for establishing MLAN Diameter；Alternatively, SMF entity can be the mark pair for determining after receiving one or more MLAN session establishment requests and establishing MLAN The multicast path answered, the embodiment of the present application are not especially limited this.
S611, with step S402, specifically refer to embodiment shown in Fig. 4, details are not described herein.
S612, UPF entity store the path downlink information and each multicast path pair of the mark of MLAN, m multicast path The corresponding relationship of the path downlink information in the corresponding path of the terminal answered.
For convenience of description, the embodiment of the present application can be by the mark of MLAN, the path downlink information of m multicast path and every The corresponding relationship of the path downlink information in the corresponding path of the corresponding terminal of a multicast path is denoted as corresponding relationship 11, unifies herein Illustrate, repeats no more below.Wherein, which can be such as table 12:
Table 12
Optionally, in the embodiment of the present application, when UPF entity corresponding relationship 11 shown in storage table 12, can also divide Not Cun Chu MLAN mark and multicast path path downlink information corresponding relationship and multicast path path downlink information The corresponding relationship of the path downlink information in path corresponding with terminal, the embodiment of the present application are not especially limited this.
S613-S614, with step S410-S411, specifically refer to embodiment shown in Fig. 4, details are not described herein.
Assuming that the corresponding first AN equipment of multicast path 1 in n multicast path, then data provided by the embodiments of the present application pass Transmission method further includes following steps:
S615, UPF entity are sent out by the corresponding multicast path 1 of path downlink information of multicast path 1 to the first AN equipment The path downlink information for sending data packet and the corresponding path of corresponding s target terminal, so that the first AN equipment passes through group Broadcast the path downlink information that path 1 receives data packet and the corresponding path of corresponding s target terminal from UPF entity.
Illustratively, UPF entity can determine path downlink information and the end in the corresponding path of terminal 1 according to table 12 Hold the path downlink information in 2 corresponding paths.
S616, the first AN equipment determine the information of corresponding s target terminal, and s is positive integer.
Illustratively, the first AN equipment is in the path downlink for receiving the corresponding path of s target terminal from UPF entity , can be according to table seven and table nine after information, or according to table 11, determine the information of corresponding s target terminal.
S617a-S617b, same to S414a-S414b, specifically refer to embodiment shown in Fig. 4, details are not described herein.
It should be noted that the step S615-S617b in the embodiment of the present application gives the processing for multicast path 1 Mode, certainly, for other multicast paths in n multicast path, according to the above-mentioned processing mode for multicast path 1 into Row processing, this is no longer going to repeat them.
Difference with Fig. 4 or embodiment shown in fig. 5 is, in Fig. 4 or embodiment shown in fig. 5, each AN equipment and A multicast path is only established between UPF, when terminal initiates MLAN session establishment process, if between AN equipment and UPF Multicast path is established, then does not need to resettle the corresponding path of session, so as to save Session Resources；And reality shown in fig. 6 It applies in example, each terminal is initiated to be required to establish the corresponding path of session, in addition to this, each AN when MLAN session establishment process A multicast path is also set up between equipment and UPF, can not need to safeguard as shown in table four to table six in such AN equipment Corresponding relationship, and be only to safeguard the corresponding relationship as shown in table seven, table nine or table 11 as the prior art.
It, can be to avoid data packet in the prior art in identical use based on data transmission method provided by the embodiments of the present application The problem of transmitting is repeated between family face functional entity and access device, so as to the transmission belt saved under MLAN multicast scene It is wide.The relevant technologies effect analysis can refer to system embodiment, and details are not described herein.
Wherein, the movement of above-mentioned steps S601 UPF entity and the first AN equipment into S617b can lead to as shown in Figure 3 Processor 301 in letter equipment 300 calls the application code stored in memory 303 to execute, the embodiment of the present application pair This is not intended to be limited in any.
Below by taking the mark of the MLAN of the signing of configurating terminal 1 on the terminal 1 as an example, the configuration process of the mark of MLAN is provided Flow diagram as shown in fig. 7, comprises following steps:
S701, terminal 1 contract MLAN business when, UDM entity store the corresponding MLAN signing information of terminal 1.Wherein, should It include the mark for the MLAN that terminal 1 is contracted in the MLAN signing information of terminal 1.
Optionally, if the mark for the MLAN that terminal 1 is contracted corresponds to specific coverage, the MLAN of terminal 1, which contracts, to be believed It can also include the information of the corresponding regions of particular service of mark for the MLAN that terminal 1 is contracted in breath.
It is, of course, also possible to the corresponding particular service area of mark for the MLAN that configurating terminal 1 is contracted on other network equipments The information in domain, such as the MLAN that configurating terminal 1 is contracted in one or more equipment in PCF entity, AMF entity, SMF entity The corresponding regions of particular service of mark information so that these network equipments initiate MLAN session establishment process in terminal 1 When, it can be according to the information of the corresponding regions of particular service of mark for the MLAN that the current position of terminal 1 and terminal 1 are contracted, really Terminal 1 is determined whether in the corresponding regions of particular service of mark for the MLAN that terminal 1 is contracted, and the embodiment of the present application does not make this to have Body limits.
S702, terminal 1 send registration or re-register request to AMF entity, so that AMF entity, which receives, carrys out self terminal 1 Registration or re-register request.
S703, AMF entity obtain the mark for the MLAN that terminal 1 is contracted from UDM entity.
Optionally, if the mark for the MLAN that terminal 1 is contracted corresponds to specific service range, and end is not configured in AMF entity The information of the corresponding regions of particular service of mark of the MLAN of 1 signing of end, the then MLAN that AMF entity is also contracted from configurating terminal 1 The corresponding regions of particular service of mark information equipment in obtain the corresponding special services of mark of the MLAN that terminal 1 is contracted The information in region, for example from UDM entity, in PCF entity or SMF entity, the embodiment of the present application is not especially limited this.
S704, AMF entity send registration reply to terminal 1, so that terminal 1 receives the registration reply from AMF entity. Wherein, the mark for the MLAN that carried terminal 1 is contracted in the registration reply.
Optionally, in the embodiment of the present application, AMF entity from UDM entity obtain terminal 1 contract MLAN mark it Afterwards, if the mark for the MLAN that terminal 1 is contracted corresponds to specific service range, AMF entity is needed according to the current Acceditation Area of terminal 1 The information of the corresponding regions of particular service of mark of the MLAN of information and terminal 1 signing in domain, determines the current registration of terminal 1 Whether region regions of particular service corresponding with the mark of MLAN that terminal 1 is contracted has overlapping, in the case where there is overlapping, AMF Entity sends registration reply, the mark for the MLAN that carried terminal 1 is contracted in the registration reply to terminal 1.Optionally, the situation Under, can also include in registration reply and the information of the corresponding regions of particular service of mark of MLAN that terminal 1 is contracted, so that Terminal 1 can be according to the information of the corresponding regions of particular service of mark for the MLAN that terminal 1 is contracted, in the MLAN that terminal 1 is contracted The corresponding regions of particular service of mark in initiate MLAN session establishment process, the embodiment of the present application is not especially limited this.
So far, the mark of the MLAN of the available terminal 1 of terminal 1 signing, the subsequent MLAN that can be contracted according to the terminal 1 Mark, initiate MLAN session establishment process, specifically refer to embodiment shown in fig. 4 to fig. 6, details are not described herein.
In addition, the process that the mark of the MLAN of the terminal unit contractual is configured in other terminals can refer to it is above-mentioned on the terminal 1 The process of the mark for the MLAN that configurating terminal 1 is contracted, details are not described herein.
It is above-mentioned that mainly scheme provided by the embodiments of the present application is described from the angle of interaction between each network element.It can With understanding, in order to realize the above functions, it comprises execute each function for above-mentioned user plane functions entity or access device Corresponding hardware configuration and/or software module.Those skilled in the art should be readily appreciated that, in conjunction with disclosed herein Each exemplary unit and algorithm steps of embodiment description, the application can be with the combination shape of hardware or hardware and computer software Formula is realized.Some functions is executed in a manner of hardware or computer software driving hardware actually, depends on technical solution Specific application and design constraint.Professional technician can realize each specific application using distinct methods Described function, but this realization is it is not considered that exceed scope of the present application.
The embodiment of the present application can carry out function mould to user plane functions entity or access device according to above method example The division of block, for example, each functional module of each function division can be corresponded to, it can also be by two or more function collection In Cheng Yi processing module.Above-mentioned integrated module both can take the form of hardware realization, can also use software function The form of module is realized.It should be noted that being schematically that only one kind is patrolled to the division of module in the embodiment of the present application Function division is collected, there may be another division manner in actual implementation.
For example, Fig. 8 shows a kind of user plane functions in the case where to use the integrated each functional module of model split The structural schematic diagram of entity 80.The user plane functions entity 80 includes: processing module 801 and transceiver module 802.Transceiver module 802, for receiving the data packet from source device, wherein the data packet carries multicast information；Processing module 801, for determining The path downlink information of the corresponding n multicast path of target MLAN；Transceiver module 802 is also used to the road by n multicast path The corresponding n multicast path of diameter downlink information sends data packet to corresponding n access device respectively, and n is positive integer.
Optionally, processing module 801 is specifically used for: according to the mark of target MLAN and the first corresponding relationship, determining mesh Mark the path downlink information of the corresponding n multicast path of MLAN, wherein first corresponding relationship include target MLAN mark with The corresponding relationship of the path downlink information of n multicast path.
Further, transceiver module 802 are also used to receive the first corresponding relationship from session management entity.
Optionally, processing module 801 are also used to close according to the path downlink information of n multicast path and second are corresponding System, the corresponding path downlink information of determination target terminal corresponding with each multicast path, wherein the second corresponding relationship includes every The corresponding relationship of the path downlink information of the path downlink information and corresponding path of corresponding target terminal of a multicast path.It receives Module 802 is sent out, is also used to connect to corresponding respectively by the corresponding n multicast path of path downlink information of n multicast path Enter the path downlink information that equipment sends the corresponding path of corresponding target terminal.
Further, transceiver module 802 are also used to receive the second corresponding relationship from session management entity.
In a kind of possible implementation, data packet carries the mark of target MLAN.
In a kind of possible implementation, source device includes source terminal；Processing module 801, is also used to according to source terminal pair The path uplink information and third corresponding relationship in the path answered, determine the mark of target MLAN, wherein third corresponding relationship The corresponding relationship of the mark of path uplink information and target MLAN including the corresponding path of source terminal.
In a kind of possible implementation, source device includes server；Processing module 801, is also used to according to server pair The path downlink information and the 4th corresponding relationship in the path answered, determine the mark of target MLAN, wherein the 4th corresponding relationship The corresponding relationship of the mark of path downlink information and target MLAN including the corresponding path of server.
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module Function description, details are not described herein.
In the embodiment of the present application, the user plane functions entity 80 is using the integrated each functional module of model split Form is presented.Here " module " can refer to that specific ASIC, circuit execute the processing of one or more softwares or firmware program Device and memory, integrated logic circuit and/or other device of above-mentioned function can be provided.In a simple embodiment, Those skilled in the art is contemplated that user plane functions entity 80 can use form shown in Fig. 3.
For example, processor 301 in Fig. 3 can by calling the computer executed instructions stored in memory 303 so that User plane functions entity 80 executes the data transmission method in above method embodiment.
Specifically, function/realization process of processing module 801 and transceiver module 802 in Fig. 8 can be by Fig. 3 Processor 301 calls the computer executed instructions stored in memory 303 to realize.Alternatively, processing module 801 in Fig. 8 Function/realization process can call the computer executed instructions stored in memory 303 come real by the processor 301 in Fig. 3 Existing, function/realization process of the transceiver module 802 in Fig. 8 can be realized by the communication interface 304 in Fig. 3.
Since user plane functions entity provided by the embodiments of the present application can be used for executing above-mentioned data transmission method, Can be obtained technical effect can refer to above method embodiment, and details are not described herein.
For example, Fig. 9 shows a kind of access device 90 in the case where to use the integrated each functional module of model split Structural schematic diagram.The access device 90 includes: receiving module 901 and sending module 902.Receiving module 901, for passing through group It broadcasts path and receives the data packet from user plane functions entity, wherein the data packet carries multicast information；Sending module 902 is used In sending data packet respectively to s target terminal, wherein the signing MLAN of target terminal is identical as target MLAN, target MLAN The MLAN where source device to send data packet, s is positive integer.
Optionally, sending module 902 is specifically used for: according to the mark of target MLAN and the first corresponding relationship, determining s The information of a target terminal, wherein the first corresponding relationship includes the correspondence of the mark of target MLAN and the information of s target terminal Relationship；According to the information of s target terminal, data packet is sent respectively to s target terminal.
It further, include first terminal in s target terminal.As shown in figure 9, access device 90 further includes processing module 903.Processing module 903, for establishing target MLAN's during first terminal establishes MLAN session in target MLAN The information corresponding relationship of mark and first terminal.
Optionally, receiving module 901 are also used to during first terminal establishes MLAN session in target MLAN, In the case where having built up the first multicast path, the notification message from session management entity is received, which is used for Instruction access device 90 establishes the mark of target MLAN and the information corresponding relationship of first terminal.
Optionally, receiving module 901 are also used to receive the s target from user plane functions entity by multicast path The path downlink information in the corresponding path of terminal；Sending module 902 is specifically used for: according under the corresponding path of s target terminal Row information and the second corresponding relationship, determine the information of s target terminal, wherein the second corresponding relationship includes that s target is whole Hold the corresponding relationship of the path downlink information in corresponding path and the information of s target terminal；According to the letter of s target terminal Breath, sends data packet to s target terminal respectively.
It optionally, include second terminal in s target terminal.As shown in figure 9, access device 90 further includes processing module 903.Processing module 903, for establishing second terminal pair during second terminal establishes MLAN session in target MLAN The path downlink information in the path answered and the information corresponding relationship of second terminal.
In a kind of possible implementation, data packet carries the mark of target MLAN.
Alternatively, in a kind of possible implementation, as shown in figure 9, access device 90 further includes processing module 903.Processing Module 903 determines the mark of target MLAN for the path downlink information and third corresponding relationship according to multicast path, In, third corresponding relationship includes the path downlink information of multicast path and the corresponding relationship of target MLAN mark.
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module Function description, details are not described herein.
In the embodiment of the present application, the access device 90 in the form of using the integrated each functional module of model split come It presents.Here " module " can refer to that specific ASIC, circuit execute the processor of one or more softwares or firmware program and deposit Reservoir, integrated logic circuit and/or other device of above-mentioned function can be provided.In a simple embodiment, this field Technical staff be contemplated that access device 90 can use form shown in Fig. 3.
For example, processor 301 in Fig. 3 can by calling the computer executed instructions stored in memory 303 so that Access device 90 executes the data transmission method in above method embodiment.
Specifically, the function of receiving module 901, sending module 902 in Fig. 9 and processing module 903/realization process can be with The computer executed instructions stored in memory 303 are called to realize by the processor 301 in Fig. 3.Alternatively, the place in Fig. 8 Function/realization the process for managing module 903 can call the computer stored in memory 303 to hold by the processor 301 in Fig. 3 To realize, function/realization process of receiving module 901 and sending module 902 in Fig. 9 can be by logical in Fig. 3 for row instruction Interface 304 is believed to realize.
Since access device provided by the embodiments of the present application can be used for executing above-mentioned data transmission method, can obtain The technical effect obtained can refer to above method embodiment, and details are not described herein.
In above-described embodiment, user plane functions entity 80 and access device 90 are using the integrated each function of model split Can the form of module present.Certainly, the embodiment of the present application can also correspond to each function division device, control equipment and session Each functional module of management entity, the embodiment of the present application are not especially limited this.
Optionally, the embodiment of the present application provides a kind of chip system, which includes processor, uses for supporting Family face functional entity realizes above-mentioned data transmission method, such as determines the path downlink of the corresponding n multicast path of target MLAN Information.In a kind of possible design, which further includes memory.The memory, for saving user plane functions reality The necessary program instruction of body and data.The chip system, can be made of chip, also may include chip and other deviding devices Part, the embodiment of the present application are not especially limited this.
Optionally, the embodiment of the present application provides a kind of chip system, which includes processor, connects for supporting Enter equipment and realize above-mentioned data transmission method, such as during first terminal establishes MLAN session in target MLAN, builds The mark of vertical target MLAN and the information corresponding relationship of first terminal.In a kind of possible design, which further includes Memory.The memory, for saving the necessary program instruction of access device and data.The chip system, can be by chip structure At also may include chip and other discrete devices, the embodiment of the present application is not especially limited this.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer Program product includes one or more computer instructions.On computers load and execute computer program instructions when, all or It partly generates according to process or function described in the embodiment of the present application.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 from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center Word user line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be accessed either includes the numbers such as one or more server, data centers that medium can be used to integrate According to storage equipment.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, DVD), Or semiconductor medium (such as solid state hard disk (solid state disk, SSD)) etc..
Although the application is described in conjunction with each embodiment herein, however, implementing the application claimed In the process, those skilled in the art are by checking the attached drawing, disclosure and the appended claims, it will be appreciated that and it is real Other variations of the existing open embodiment.In the claims, " comprising " (comprising) word is not excluded for other compositions Part or step, "a" or "an" are not excluded for multiple situations.Claim may be implemented in single processor or other units In several functions enumerating.Mutually different has been recited in mutually different dependent certain measures, it is not intended that these are arranged It applies to combine and generates good effect.
Although the application is described in conjunction with specific features and embodiment, it is clear that, do not departing from this Shen In the case where spirit and scope please, it can be carry out various modifications and is combined.Correspondingly, the specification and drawings are only institute The exemplary illustration for the application that attached claim is defined, and be considered as covered within the scope of the application any and all and repair Change, change, combining or equivalent.Obviously, those skilled in the art the application can be carried out various modification and variations without It is detached from spirit and scope.If in this way, these modifications and variations of the application belong to the claim of this application and its Within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.

Claims (33)

1. a kind of data transmission method, which is characterized in that the described method includes:
User plane functions entity receives the data packet from source device, wherein the data packet carries multicast information；
The user plane functions entity determines the path downlink information of the corresponding n multicast path of target mobile LAN MLAN；
The corresponding n multicast path difference of path downlink information that the user plane functions entity passes through the n multicast path The data packet is sent to corresponding n access device, n is positive integer.
2. the method according to claim 1, wherein the user plane functions entity determines that target MLAN is corresponding The path downlink information of n multicast path, comprising:
The user plane functions entity determines the target according to the mark and the first corresponding relationship of the target MLAN The path downlink information of the corresponding n multicast path of MLAN, wherein first corresponding relationship includes the mark of the target MLAN Know the corresponding relationship with the path downlink information of the n multicast path.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
The user plane functions entity receives first corresponding relationship from session management entity.
4. according to the method described in claim 3, it is characterized in that, including the first multicast in the information of the n multicast path The information in path, the method also includes:
The session management entity establishes first multicast path in the target MLAN；
The session management entity to the user plane functions entity send the target MLAN mark and first multicast The corresponding relationship of the path downlink information in path.
5. according to the method described in claim 4, it is characterized in that, t target terminal corresponding with first multicast path In include first terminal, t is positive integer；The session management entity establishes first multicast path in the target MLAN Diameter, comprising:
During the first terminal establishes MLAN session in the target MLAN, first multicast path is not being set up In the case where diameter, the session management entity establishes first multicast path.
6. method according to claim 1 or 2, which is characterized in that determine the target in the user plane functions entity After the path downlink information of the corresponding n multicast path of MLAN, further includes:
The user plane functions entity is determined according to the path downlink information and the second corresponding relationship of the n multicast path The path downlink information in the corresponding path of corresponding with the path downlink information of each multicast path target terminal, wherein Second corresponding relationship includes path downlink information and the corresponding path of corresponding target terminal of each multicast path Path downlink information corresponding relationship；
The corresponding n multicast path difference of path downlink information that the user plane functions entity passes through the n multicast path The path downlink information in the corresponding path of corresponding target terminal is sent to corresponding access device.
7. according to the method described in claim 6, it is characterized in that, the method also includes:
The user plane functions entity receives second corresponding relationship from session management entity.
8. the method according to the description of claim 7 is characterized in that including in the path downlink information of the n multicast path The path downlink information of second multicast path includes second terminal in s target terminal corresponding with second multicast path, S is positive integer；The method also includes:
The session management entity establishes second multicast path and the corresponding path of the second terminal；
The session management entity to the user plane functions entity send the target MLAN mark and second multicast The mark and the corresponding path of the second terminal of the corresponding relationship of the path downlink information in path and the target MLAN The corresponding relationship of path downlink information.
9. method according to claim 1-8, which is characterized in that the data packet carries the target MLAN's Mark.
10. method according to claim 1-8, which is characterized in that the source device includes source terminal, described User plane functions entity receives after the data packet from source device, further includes:
The user plane functions entity is closed according to the path uplink information and third in the corresponding path of the source terminal are corresponding System, determines the mark of the target MLAN, wherein the third corresponding relationship includes the path in the corresponding path of the source terminal The corresponding relationship of the mark of uplink information and the target MLAN.
11. method according to claim 1-8, which is characterized in that the source device includes server, described User plane functions entity receives after the data packet from source device, further includes:
The user plane functions entity is closed according to the path downlink information in the corresponding path of the server and the 4th are corresponding System, determines the mark of the target MLAN, wherein the 4th corresponding relationship includes the path in the corresponding path of the server The corresponding relationship of the mark of downlink information and the target MLAN.
12. a kind of data transmission method, which is characterized in that the described method includes:
Access device receives the data packet from user plane functions entity by multicast path, wherein the data packet carrying group Broadcast information；
The access device sends the data packet to s target terminal respectively, wherein the signing Mobile Office of the target terminal Domain net MLAN is identical as target MLAN, and the target MLAN is the MLAN sent where the source device of the data packet, and s is positive whole Number.
13. according to the method for claim 12, which is characterized in that the access device is sent respectively to s target terminal The data packet, comprising:
The access device determines the s target terminal according to the mark and the first corresponding relationship of the target MLAN Information, wherein first corresponding relationship includes the correspondence of the mark of the target MLAN and the information of the s target terminal Relationship；
The access device sends the data according to the information of the s target terminal, Xiang Suoshu s target terminal respectively Packet.
14. according to the method for claim 13, which is characterized in that it include first terminal in the s target terminal, it is described Method further include:
During the first terminal establishes MLAN session in the target MLAN, the access device establishes the mesh Mark the mark of MLAN and the information corresponding relationship of the first terminal.
15. according to the method for claim 14, which is characterized in that the method also includes:
During the first terminal establishes MLAN session in the target MLAN, first multicast is being had built up In the case where path, the access device receives the notification message from session management entity, and the notification message is used to indicate The access device establishes the mark of the target MLAN and the information corresponding relationship of the first terminal.
16. according to the method for claim 12, which is characterized in that the method also includes:
The access device receives the s target terminal pair from the user plane functions entity by the multicast path The path downlink information in the path answered；
The access device sends the data packet to s target terminal respectively, comprising:
The access device according to the path downlink information and the second corresponding relationship in the corresponding path of the s target terminal, Determine the information of the s target terminal, wherein second corresponding relationship includes the corresponding path of the s target terminal Path downlink information and the s target terminal information corresponding relationship；
The access device sends the data according to the information of the s target terminal, Xiang Suoshu s target terminal respectively Packet.
17. according to the method for claim 16, which is characterized in that it include second terminal in the s target terminal, it is described Method further include:
During the second terminal establishes MLAN session in the target MLAN, the access device establishes described The path downlink information in the corresponding path of two terminals and the information corresponding relationship of the second terminal.
18. the described in any item methods of 2-17 according to claim 1, which is characterized in that the data packet carries the target The mark of MLAN；
Alternatively, the access device by multicast path receive the data packet from the user plane functions entity it Afterwards, further includes:
The access device determines the target according to the path downlink information and third corresponding relationship of the multicast path The mark of MLAN, wherein the third corresponding relationship includes the path downlink information and the target MLAN of the multicast path The corresponding relationship of mark.
19. a kind of user plane functions entity, which is characterized in that the user plane functions entity includes: transceiver module and processing mould Block；
The transceiver module, for receiving the data packet from source device, wherein the data packet carries multicast information；
The processing module, for determining the path downlink information of the corresponding n multicast path of target mobile LAN MLAN；
The transceiver module is also used to the corresponding n multicast path difference of path downlink information by the n multicast path The data packet is sent to corresponding n access device, n is positive integer.
20. user plane functions entity according to claim 19, which is characterized in that the processing module is specifically used for:
According to the mark and the first corresponding relationship of the target MLAN, the corresponding n multicast path of the target MLAN is determined Path downlink information, wherein first corresponding relationship include the target MLAN mark and the n multicast path The corresponding relationship of path downlink information.
21. user plane functions entity according to claim 20, which is characterized in that
The transceiver module is also used to receive first corresponding relationship from session management entity.
22. user plane functions entity described in 9 or 20 according to claim 1, which is characterized in that
The processing module is also used to path downlink information and the second corresponding relationship according to the n multicast path, really The path downlink information in the corresponding path of target terminal corresponding with the path downlink information of each multicast path calmly, In, second corresponding relationship includes path downlink information and the corresponding road of corresponding target terminal of each multicast path The corresponding relationship of the path downlink information of diameter；
The transceiver module is also used to the corresponding n multicast path difference of path downlink information by the n multicast path The path downlink information in the corresponding path of corresponding target terminal is sent to corresponding access device.
23. user plane functions entity according to claim 22, which is characterized in that
The transceiver module is also used to receive second corresponding relationship from session management entity.
24. the described in any item user plane functions entities of 9-23 according to claim 1, which is characterized in that the source device includes Source terminal；
The processing module is also used to close according to the path uplink information and third in the corresponding path of the source terminal are corresponding System, determines the mark of the target MLAN, wherein the third corresponding relationship includes the path in the corresponding path of the source terminal The corresponding relationship of the mark of uplink information and the target MLAN.
25. the described in any item user plane functions entities of 9-23 according to claim 1, which is characterized in that the source device includes Server；
The processing module is also used to close according to the path downlink information in the corresponding path of the server and the 4th are corresponding System, determines the mark of the target MLAN, wherein the 4th corresponding relationship includes the path in the corresponding path of the server The corresponding relationship of the mark of downlink information and the target MLAN.
26. a kind of access device, which is characterized in that the access device includes: receiving module and sending module；
The receiving module, for receiving the data packet from user plane functions entity by multicast path, wherein the data Packet carries multicast information；
The sending module, for sending the data packet respectively to s target terminal, wherein the signing of the target terminal Mobile LAN MLAN is identical as target MLAN, and the target MLAN is the MLAN, s sent where the source device of the data packet For positive integer.
27. access device according to claim 26, which is characterized in that the sending module is specifically used for:
According to the mark and the first corresponding relationship of the target MLAN, the information of the s target terminal is determined, wherein institute State the corresponding relationship that the first corresponding relationship includes the mark of the target MLAN and the information of the s target terminal；
According to the information of the s target terminal, Xiang Suoshu s target terminal sends the data packet respectively.
28. access device according to claim 27, which is characterized in that it include first terminal in the s target terminal, The access device further includes processing module；
The processing module, for establishing during the first terminal establishes MLAN session in the target MLAN The mark of the target MLAN and the information corresponding relationship of the first terminal.
29. access device according to claim 28, which is characterized in that
The receiving module is also used to during the first terminal establishes MLAN session in the target MLAN, In the case where having built up first multicast path, the notification message from session management entity, the notification message are received It is used to indicate the access device and establishes the mark of the target MLAN and the information corresponding relationship of the first terminal.
30. access device according to claim 26, which is characterized in that
The receiving module is also used to receive the s mesh from the user plane functions entity by the multicast path Mark the path downlink information in the corresponding path of terminal；
The sending module is specifically used for: according to the path downlink information and second in the corresponding path of the s target terminal Corresponding relationship determines the information of the s target terminal, wherein second corresponding relationship includes the s target terminal pair The corresponding relationship of the information of the path downlink information in the path answered and the s target terminal；According to the s target terminal Information, Xiang Suoshu s target terminal send the data packet respectively.
31. access device according to claim 30, which is characterized in that it include second terminal in the s target terminal, The access device further includes processing module；
The processing module, for establishing during the second terminal establishes MLAN session in the target MLAN The path downlink information in the corresponding path of the second terminal and the information corresponding relationship of the second terminal.
32. according to the described in any item access devices of claim 26-31, which is characterized in that the data packet carries the mesh Mark the mark of MLAN；
Alternatively, the access device further includes processing module；
The processing module, for the path downlink information and third corresponding relationship according to the multicast path, determine described in The mark of target MLAN, wherein the third corresponding relationship include the multicast path path downlink information and the target The corresponding relationship of MLAN mark.
33. a kind of data transmission system, which is characterized in that the data transmission system includes such as any one of claim 19-25 The user plane functions entity and the n such as described in any item access devices of claim 26-32, n is positive integer.
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