WO2018094693A1 - Procédé, dispositif et système de transmission de données - Google Patents

Procédé, dispositif et système de transmission de données Download PDF

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Publication number
WO2018094693A1
WO2018094693A1 PCT/CN2016/107297 CN2016107297W WO2018094693A1 WO 2018094693 A1 WO2018094693 A1 WO 2018094693A1 CN 2016107297 W CN2016107297 W CN 2016107297W WO 2018094693 A1 WO2018094693 A1 WO 2018094693A1
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WIPO (PCT)
Prior art keywords
information
tunnel
access device
control plane
plane device
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PCT/CN2016/107297
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English (en)
Chinese (zh)
Inventor
杨娇
李岩
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华为技术有限公司
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Priority to PCT/CN2016/107297 priority Critical patent/WO2018094693A1/fr
Publication of WO2018094693A1 publication Critical patent/WO2018094693A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a data transmission method, apparatus, and system.
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • 3GPP 3rd Generation Partnership Project
  • Figure 1 shows a mobile communication network architecture after CP and UP are separated.
  • the control plane CP controls the user planes UP1 and UP2.
  • UP1 is connected to the data network (DN) DN1 and DN2, respectively.
  • UP2 is connected to DN3.
  • An access network (AN) provides services for a plurality of user equipments (UEs), for example, a plurality of UEs including UE1, UE2, and UE3.
  • the UE1 accesses the DN1 through the AN and the UP1, and the CP allocates an internet protocol (IP) address IP1 to the UE1.
  • IP internet protocol
  • UE2 accesses DN2 through AN and UP1, and CP assigns IP2 IP2 to UE2.
  • the CP can also assign an IP address IP1 to UE3 (the same IP address assigned by the CP to UE1).
  • IP1 the same IP address assigned by the CP to UE1.
  • the AN does not know which UE to send the downlink data to based on the IP address (for example, the AN does not know whether to send the downlink data to UE1 or UE3).
  • RBs radio bearers
  • the present application describes a data transmission method, apparatus, and communication system.
  • an embodiment of the present application provides a data transmission method, where the method includes: an access device acquiring association information.
  • the association information includes first information of the first tunnel, address information of the first terminal device, and an association between the radio bearers.
  • the access device receives the first downlink data from the user plane device connected to the first tunnel, and determines, according to the association information, the information of the first tunnel carried in the first downlink data, and the address information of the first terminal device,
  • the bearer transmits the first downlink data to the first terminal device.
  • the access device acquiring the association information includes: the access device acquiring the second information from the control plane device.
  • the second information includes address information of the first terminal device, identification information of the first session to which the radio bearer belongs, and first information of the first tunnel.
  • the access device acquires the second information from the control plane device during the session establishment process.
  • the access device establishes a radio bearer of the first session according to the identifier information of the first session, and generates association information according to the second information and the established radio bearer.
  • the first information includes at least one of identification information of the user plane device and identification information of the first tunnel.
  • the identification information of the user plane device includes any one or more of the following: an internet protocol IP address of the user plane device, a port number of the user plane device, a virtual local area network VLAN identifier of the user plane device, and a universal routing encapsulation of the user plane device. Protocol GRE key identifier.
  • the access device obtains the second information from the control plane device, including: The inbound device sends a session establishment request message to the control plane device, and receives a resource setup request message from the control plane device, where the resource setup request message carries the second information.
  • the method before receiving the first downlink data, the method further includes: the access device sending the identifier information of the access device to the control plane device; and acquiring the first information of the first tunnel from the control plane device.
  • the access device acquires the first information from the control plane device during the process of establishing association with the control plane device or during the session establishment process.
  • the Per node per DN granular tunnel is not a Per QoS tunnel. The establishment process is simpler and the number of tunnels to be established is smaller, and it can be reused, thus saving network resources.
  • the access device may send the identifier information of the access device to the control plane device by using the following steps, and obtain the first information of the first tunnel from the control plane device: the access device sends the association establishment to the control plane device.
  • the request message, the association establishment request message includes identification information of the access device.
  • the access device receives an association setup response message from the control plane device, where the association setup response message carries the first information.
  • the access device may also send the identifier information of the access device to the control plane device, and obtain the first information of the first tunnel from the control plane device: the resource setup request message carrying the second information further carries the first information.
  • the access device sends a resource setup response message to the control plane device, where the resource setup response message includes the identifier information of the access device.
  • the method further includes: the access device receives the second downlink data from the user plane device by using the first tunnel, and sends the second downlink data to the second terminal device. Therefore, a Per node per DN granular tunnel can be reused by other terminal devices, thereby saving network resources.
  • an embodiment of the present application provides a data transmission method, where the method includes: controlling a surface device to acquire second information.
  • the second information includes address information of the terminal device, and the radio bearer belongs to The identification information of the first session and the first information of the first tunnel.
  • the control plane device sends the second information to the access device connected to the first tunnel. For example, the control plane device sends a resource setup request message carrying the second information to the access device.
  • the association information may be generated according to the solution provided in this embodiment.
  • the access device can accurately determine the terminal device to receive the downlink data and the radio bearer used to transmit the downlink data to the terminal device according to the association information, thereby alleviating the data packet loss problem and improving the user experience.
  • the control plane device obtains the second information
  • the control plane device receives the session establishment request message from the terminal device, and obtains the identifier information of the first data network to be accessed by the terminal device according to the session establishment request message, and determines the second
  • the address information of the terminal device in the information and the identification information of the first session, and the user plane device is selected for the terminal device according to the identification information of the first data network, and the first tunnel in the second information is determined according to the selected user plane device.
  • the first information is described.
  • the method further includes: the control plane device receives the identification information of the access device from the access device; and sends the first information of the first tunnel to the access device, where the first information is used to establish the access device and a first tunnel between the user plane devices; the identifier information of the access device and the first information of the first tunnel are sent to the user plane device.
  • the control plane device receives the identification information of the access device from the access device; and sends the first information of the first tunnel to the access device, where the first information is used to establish the access device and a first tunnel between the user plane devices; the identifier information of the access device and the first information of the first tunnel are sent to the user plane device.
  • the first information includes at least one of identification information of the user plane device and identification information of the first tunnel.
  • the identification information of the user plane device includes any one or more of the following: an internet protocol IP address of the user plane device, a port number of the user plane device, a virtual local area network VLAN identifier of the user plane device, and a universal routing encapsulation of the user plane device. Protocol GRE key identifier.
  • an embodiment of the present application provides a method for establishing a per-node per-DN tunnel, where the method includes: the control plane device receives the identification information of the access device from the access device, and sends the first tunnel to the access device. A message, the first information is used to establish a first tunnel between the access device and the user plane device. The control plane device sends the identification information of the access device and the first information of the first tunnel to the user plane device.
  • a per node per DN tunnel between the connected access device and the control plane device can be established.
  • the Per node per DN granular tunnel is not a Per QoS tunnel. The establishment process is simpler and the number of tunnels to be established is smaller, and it can be reused, thus saving network resources.
  • the embodiment of the present application provides an access device and a control plane device.
  • the access device There is a function in the method of implementing the above first aspect.
  • the control surface device has the function of implementing the method of the second or third aspect described above.
  • the above functions can be implemented by hardware or by executing corresponding software through hardware.
  • the above hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the access device includes a processor and a transceiver, the processor being configured to support the access device to perform the corresponding function in the above method.
  • the transceiver is used to support communication between the access device and the terminal device, the user plane device, and the control plane device.
  • the access device can also include a memory for coupling with the processor that retains the program instructions and data necessary to access the device.
  • control plane device includes a processor and a transceiver configured to support the control plane device to perform the corresponding functions in the above methods.
  • the transceiver is used to support communication between the control plane device and the access device device and the user plane device.
  • the control plane device can also include a memory for coupling with the processor that holds the program instructions and data necessary for the control plane device.
  • the control plane device includes a mobility module and at least one session management module.
  • the tunnel establishment request message and the tunnel establishment response message may be transmitted between the mobility module and the at least one session management module in a plurality of manners. For example: (1) the mobility module receives the association establishment request message from the access device, and sends a tunnel establishment request message to the at least one session management module, where the first session management module in the at least one session management module determines whether the first tunnel is supported. Supporting, the first session management module returns a tunnel establishment response message carrying the first information; or (2) the mobility module receives an association establishment request message from the access device, and sends the first session to the at least one session management module according to the preset rule.
  • the management module sends a tunnel establishment request message, and the first session management module returns a tunnel establishment response message carrying the first information; or (3) the first session management module in the at least one session management module sends a subscription message to the mobility management module, and subscribes The message is used to indicate that the first session management module supports the first tunnel, and the mobility module receives the association establishment request message from the access device, to the first A session management module sends a tunnel establishment request message, and the first session management module returns a tunnel establishment response message carrying the first information.
  • an embodiment of the present application provides a communication system, where the system includes the access device and the user plane device of the foregoing aspect.
  • the user plane device is connected to the access device through the first tunnel, and is configured to send the first downlink data.
  • the access device is used to obtain related information.
  • the association information includes first information of the first tunnel, address information of the first terminal device, and an association between the radio bearers.
  • the access device receives the first downlink data from the user plane device, and determines, according to the association information, the information of the first tunnel carried in the first downlink data and the address information of the first terminal device, that the first downlink is determined by the radio bearer.
  • the data is sent to the first terminal device.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the access device, which includes a program designed to perform the above aspects.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions for use in the control plane device, including a program designed to perform the above aspects.
  • the access device determines to send the first downlink data by using the radio bearer according to the acquired association information and the information of the first tunnel and the address information of the terminal device carried in the first downlink data. To the terminal device. Therefore, the terminal device to receive the downlink data and the radio bearer for transmitting the downlink data to the terminal device can be accurately determined, the data packet loss problem is alleviated, and the user experience is improved.
  • FIG. 1 is a schematic diagram of a mobile communication network architecture after a core network control plane and a user plane are separated;
  • FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 4 is another schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 5 is still another schematic flowchart of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an access device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a control plane device according to an embodiment of the present disclosure.
  • FIG. 8 is another schematic structural diagram of an access device according to an embodiment of the present disclosure.
  • FIG. 9 is another schematic structural diagram of a control plane device according to an embodiment of the present application.
  • the control plane device (also referred to as a control plane network element and a core network control plane network element) involved in the embodiment of the present application is responsible for mobility management, forwarding path management, and network protocol (IP protocol) in a mobile communication network. )
  • the control plane device may be, but not limited to, a Mobility Management Entity (MME), a Serving Gateway S-GW, and a Packet Data Network Gateway (P-GW), or a router, etc. in the core network.
  • MME Mobility Management Entity
  • S-GW Serving Gateway S-GW
  • P-GW Packet Data Network Gateway
  • the S-GW control plane or the P-GW control plane may also be used, or any network element in the MME, the S-GW, the P-GW, and the router may be merged to form a control plane network element, or an S-GW control plane, or a P-GW.
  • the control plane or router control plane is merged to form a control plane network element.
  • the control plane device includes a mobility management (MM) module and at least one session management (SM) module.
  • the MM module and the SM module may be different modules that are independently set, or may be combined in the same module. in.
  • the user plane device (also referred to as a forwarding plane device, a user plane network element, a forwarding plane network element, a core network user plane network element, or a core network forwarding plane network element) involved in the embodiment of the present application is responsible for the terminal.
  • the device provides the device for forwarding service packets.
  • the user plane device may be, but is not limited to, a physical forwarding plane device such as an S-GW, a P-GW, a router, a switch, a Software Defined Network (SDN) switch, or an S-GW forwarding plane or P. - GW forwarding plane and other virtual forwarding plane network elements.
  • SDN Software Defined Network
  • the data network (DN) involved in the embodiment of the present application is a network in which the terminal device finally establishes a connection and accesses.
  • the DN may be, but not limited to, a Packet Data Network (PDN), such as the Internet, a Virtual Private Network (VPN), an IP Multi-media Service (IMS) network, or Wireless Application Protocol (WAP) network provided by the operator.
  • PDN Packet Data Network
  • VPN Virtual Private Network
  • IMS IP Multi-media Service
  • WAP Wireless Application Protocol
  • the access device involved in the embodiment of the present application is a device that provides a wireless access service for the terminal device.
  • Access devices include, but are not limited to, a base station (BS), an evolved Node B (eNB), a radio network controller (RNC), a Node B (Node B, NB), and a base station.
  • Base Station Controller (BSC) Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), Baseband Unit (BBU), access point (Access Point, AP), Wireless Fidelity Access Point (WiFi AP), Worldwide Interoperability for Microwave Access (WiMAX) BS.
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • BBU Baseband Unit
  • Access Point Access Point
  • AP Wireless Fidelity Access Point
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device which may be referred to as a User Equipment (UE), is a device that provides data connectivity to a user.
  • the terminal device includes a handheld device having a wireless connection function, an in-vehicle device, a wearable device, a computing device, a mobile station (MS) or other processing device connected to the wireless modem, or the like, or via an access network and a Or a mobile terminal that communicates with multiple core networks.
  • MS mobile station
  • FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present application.
  • the communication system 100 may be various radio access technology (RAT) systems, such as a code division multiple access (CDMA) system, time division multiple access (time division). Multiple access (TDMA) system, frequency division multiple access (FDMA) system, orthogonal frequency-division multiple access (OFDMA) system, single carrier frequency division multiple access (single carrier FDMA, SC-FDMA) system or other system.
  • RAT radio access technology
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • a CDMA system can implement wireless technologies such as universal terrestrial radio access (UTRA), CDMA2000, and the like.
  • UTRA may include wideband CDMA (WCDMA) technology and other CDMA variant technologies.
  • CDMA2000 can cover the interim standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards.
  • the TDMA system can implement a wireless technology such as a global system for mobile communication (GSM).
  • GSM global system for mobile communication
  • An OFDMA system can implement such as evolved universal radio land access (evolved UTRA, E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDMA And other wireless technologies.
  • UTRA and E-UTRA are UMTS and UMTS evolved versions.
  • the various versions of 3GPP in long term evolution (LTE) and LTE-based evolution are new versions of UMTS that use E-UTRA.
  • the communication system 100 can also be applied to a surface To future communication technologies, such as 4.5G systems or NR (Next Radio) systems.
  • the access device 204 provides services for a plurality of terminal devices.
  • a plurality of terminal devices include UE 202A, UE 202B, and UE 202C.
  • Access device 204 is coupled to control plane device 206.
  • Control plane device 206 includes an MM module and at least one SM module (eg, SM A and SM B).
  • Control plane device 206 is used to control a plurality of user plane devices (e.g., user plane devices 208A and 208B).
  • SM A in control plane device 206 is coupled to user plane devices 208A and 208B.
  • User plane device 208A is coupled to data network DN 210A and DN 210B, respectively.
  • User plane device 208B is coupled to DN 201 C.
  • the terminal device can access the data network (DN 210A, 210B or 210C) through the access device 204 and the user plane device (208A or 208B).
  • the granularity of the radio bearer between the terminal device and the access device is: each session of each terminal device may correspond to multiple radio bearers RBs (eg, RB1 and RB2).
  • the granularity of the tunnel between the access device and the user plane device may be: each node has a DN (per node per DN) corresponding to one tunnel, where the node is a node at both ends of the tunnel: the access device and The user plane device.
  • DN per node per DN
  • a first tunnel of Per node per DN granularity is used to connect the access network device 204 and the user plane device 208A; a second tunnel is used to connect the access network device 204 and the user plane device 208A; The three tunnels are used to connect the access network device 204 and the user plane device 208B.
  • a Per node per DN granular tunnel can also be called a device-level tunnel because it exists objectively between the access device and the user plane device.
  • GTP GPRS Tunneling protocol
  • Per QoS quality of service
  • the first tunnel may also be used for transmission from the user plane device 208A. Downstream data to other terminal devices.
  • the access device 204 receives the second downlink data from the first tunnel and transmits it to the second terminal device UE 202B.
  • FIG. 3 shows a data transmission method provided by an embodiment of the present application.
  • the method interacts between an access device (eg, access device 204 in FIG. 2) and a control plane device (eg, control plane device 206 in FIG. 2), and the final implementation will be from a user plane device (eg, FIG. 2)
  • the received downlink data of the user plane device 208A) is transmitted to the terminal device (e.g., the terminal device UE 202A in FIG. 2).
  • the data transmission method includes:
  • the access device acquires association information.
  • the association information includes the first information of the first tunnel, the address information of the terminal device, and the association between the radio bearers.
  • the address information of the terminal device includes, but is not limited to, an internet protocol (IP) address allocated by the control plane device to the terminal device.
  • IP internet protocol
  • a user plane device can have multiple different identification information for identifying different Per node per DN granularity tunnels, so that the identification information of the user plane device and the identifier information are identified by the identifier information.
  • the tunnels can have a one-to-one mapping relationship.
  • the identification information of the user plane device includes any one or more of the following: an internet protocol (IP) address of the user plane device, a port number of the user plane device, and a virtual local area network of the user plane device (virtual The local area network (VLAN) identifier, and the Generic Routing Encapsulation Key (GRE key) identifier of the user plane device.
  • IP internet protocol
  • VLAN virtual The local area network
  • GRE key Generic Routing Encapsulation Key
  • different user plane device identification information may be formed by using different IP addresses of the user plane device or different combinations of the foregoing various identifiers.
  • the identification information of the first tunnel may also be used to identify the first tunnel to be established.
  • the identification information of the first tunnel includes an identifier (tunnel ID) of the first tunnel. Taking FIG. 2 as an example, the ID of the first tunnel is 1, the ID of the second tunnel is 2, and the ID of the third tunnel is 3.
  • the association information includes the first information of the first tunnel, the address information of the terminal, and the association between the radio bearers.
  • the associated information can have the format shown in Table 1:
  • the association information is used to indicate the radio bearer RB1 of the first session between the terminal device UE 202A and the access device 204, and the address information (IP address) UE 202 IP of the terminal device, and the connection
  • IP address IP address
  • the access device receives downlink data from the user plane device connected to the first tunnel.
  • the downlink data sent by the user plane device carries the first information of the first tunnel and the address information of the terminal device.
  • the first information of the first tunnel carried in the downlink data includes at least one of the identifier information of the user plane device and the identifier information of the first tunnel.
  • the downlink data received from the user plane device 208A carries the identification information UP 208A IP of the user plane and the address information UE 202A IP of the terminal device.
  • the access device determines, according to the association information, the first information of the first tunnel and the address information of the terminal device carried in the downlink data, that the downlink data is sent to the terminal device by using the radio bearer.
  • the access device searches for the identification information UP 208A IP of the user plane in the association information of Table 1 or Table 2 according to the identification information UP 208A IP of the user plane carried in the downlink data and the address information UE 202A IP of the terminal device.
  • the address information of the terminal device UE 202A IP corresponds to the radio bearer, that is, RB1, thereby determining to transmit downlink data to the terminal device UE 202A through RB1.
  • the terminal device receives the downlink data by using the determined radio bearer.
  • the terminal device UE 202A receives downlink data through RB1.
  • the access device can accurately determine the terminal device to receive the downlink data and use for transmitting according to the association information, the tunnel information carried in the downlink data, and the address information of the terminal device.
  • the downlink data is to the radio bearer of the terminal device.
  • the terminal device UE 202A accesses the DN 210A through the access device 204 and the user plane device 208A
  • the terminal device UE 202C accesses the DN 210C through the access device 204 and the user plane device 208B.
  • the control plane device can assign the same IP address to different terminal devices for different DNs.
  • the IP address UE 202A IP of the terminal device UE 202A is the same as the IP address UE 202C IP of the terminal device UE 202C.
  • the access device does not know which terminal device to transmit the downlink data to the terminal device UE 202A and the UE 202C according to the IP address of the terminal device, and does not know which RB to send the downlink data to.
  • the access device may find the correct terminal device to receive the downlink data and use the transmission in the association information according to the tunnel information carried in the downlink data and the address information of the terminal device.
  • the downlink data is to the radio bearer of the terminal device. Therefore, the data transmission method in the embodiment of the present application can alleviate the data packet loss problem and improve the user experience.
  • the tunnel information carried in the downlink data and the address information of the terminal device are the UP 208A IP and the UE 202A IP, respectively, according to the association information of Table 1 or Table 2, it may be determined that the downlink data is sent to the terminal device UE 202A through RB1;
  • the tunnel information carried in the downlink data and the address information of the terminal device are UP 208B IP and UE 202C IP, respectively.
  • the association information of Table 2 it is determined that the downlink data is sent to the terminal device UE 202C through RB3.
  • the first tunnel between the access device 204 and the user plane device 208A may be established through step 300.
  • the control plane device 206 transmits the first information of the first tunnel to the access device 204, and the access device 204 sends the access information to the control plane device 206.
  • the identification information of the device (the order in which the first information and the identification information of the access device are sent is not limited).
  • the control plane device 206 sends the identification information of the access device and the first information of the first tunnel to the user plane device 208A.
  • a first tunnel between the access device 204 and the user plane device 208A is established.
  • the access device may obtain the association information by using steps 3011 to 3013.
  • the access device may also obtain the associated information in other manners. This application does not limit the manner in which the access device obtains the associated information.
  • step 3011 the control plane device sends the second information to the access device.
  • the access device acquires the second information from the control plane device.
  • the second information includes address information of the terminal device, identification information of the first session, and information of the tunnel.
  • the address information of the terminal device includes the IP address of the terminal device.
  • the identification information of the first session is used to identify the first session.
  • the identification information of the first session includes a session identifier (session ID) of the first session.
  • the tunnel information includes at least one of the identification information of the tunnel associated with the first session and the identification information of the user plane device, wherein the tunnel associated with the first session is the first tunnel. That is, in addition to the address information of the terminal device and the identification information of the first session, the second information further includes at least one of the identification information of the user plane device and the identification information of the first tunnel.
  • the second information obtained by the access device 204 from the control plane device 206 includes the IP address of the terminal device UE 202A, the session identifier session ID1 of the first session, and the IP address UP 208A of the user plane device 208A. At least one of the IP and the identifier of the first tunnel, tunnel ID1.
  • the access device acquires from the control plane device during the process of establishing association with the control plane device.
  • the first information is obtained by acquiring the second information from the control plane device during the session establishment process, which will be further described in conjunction with FIG. 4.
  • the access device acquires the first information and the second information from the control plane device during the session establishment process, which will be further described in conjunction with FIG. 5.
  • the access device establishes a radio bearer of the first session according to the identifier information of the first session.
  • the UE 202A and the access device 204 can interact with the access device 204 via RB1 or RB2.
  • the radio bearer of the first session established here may be RB1. This step can refer to the prior art, and details are not described herein again.
  • the access device In step 3013, the access device generates association information according to the acquired second information.
  • the association information is used to indicate the identification information of the user plane device, the address information of the terminal device, and the association between the radio bearers of the first session.
  • the access device saves the generated association information.
  • the access device uses the identification information of the first session in the second information as the associated intermediary, the radio bearer established according to the identifier information of the first session, and the address information of the terminal device in the second information, and the user plane device.
  • the identification information and/or the identification information of the first tunnel are associated.
  • the access device establishes the radio bearer RB1 of the first session, the address information UE 202A IP of the terminal device, and the identification information UP 208A of the user plane device 208A by using the session identifier session ID1 of the first session as an intermediary. Association between IPs to generate association information as shown in Table 1 above.
  • the access device may perform the foregoing steps 3011 to 3013 in the session establishment process of the other terminal device.
  • the association information may record the identification information of the plurality of sets of user plane devices, the address information of the terminal device, and the association between the radio bearers of the session, as shown in Table 2 above.
  • step 401 the access device sends an association setup request message to the control plane device.
  • the control plane device receives the association establishment request message from the access device.
  • the association establishment request message carries Identification information of the access device.
  • the association establishment request message may be an S1 setup request message. If the application is applied to an evolved system, the interface between the access device and the device on the control plane may be a next generation (NG1) interface. In this case, the association establishment request message may also be an NG1 setup request (NG1 setup). Request) message.
  • NG1 setup request NG1 setup request
  • the identification information of the access device may include at least one of an identifier of the access device and address information of the access device.
  • the control plane device includes an MM module and an SM module. If the MM module and the SM module are different modules that are independently set, the MM module in the control plane device can perform any of the following three methods after receiving the association establishment request message:
  • the MM module sends a tunnel establishment request message to at least one SM module.
  • the SM module (for example, the first SM module SM1) in the at least one SM module determines whether a tunnel with a per node per DN granularity (for example, the first tunnel) is supported. If the SM1 supports the tunnel with the per-node per DN granularity, the tunnel establishment response message carrying the first information is returned to the MM. If SM1 does not support a tunnel with a per node per DN granularity, a failure message is returned to the MM.
  • the b.MM module sends a tunnel establishment request message to a part of the at least one SM module (such as the first SM module SM1) according to a preset rule.
  • the preset rule may be that the delay of the SM does not exceed a certain threshold and the SM supports a tunnel with a per node per DN granularity (eg, a first tunnel).
  • the SM1 After receiving the tunnel establishment request message, the SM1 returns a tunnel establishment response message carrying the first information to the MM.
  • the first SM module SM1 of the at least one SM module sends a subscription message to the MM module, the subscription message is used to indicate that the SM1 supports a tunnel with a per node per DN granularity (eg, a first tunnel).
  • the MM module After receiving the association establishment request message, the MM module sends a tunnel establishment request message to SM1.
  • SM1 returns to MM The tunnel establishment response message carrying the first information is returned.
  • the control plane device returns an association establishment response message carrying the first information to the access device.
  • the access device receives the association establishment response message from the control plane device.
  • the first information includes at least one of the identification information of the user plane device and the identification information of the first tunnel.
  • the identifier information 1 and the identifier information 2 of the user plane device 208A have a mapping relationship with the identifier information of the first tunnel and the identifier information of the second tunnel respectively.
  • the identifier information of the user plane device 208B can be mapped with the identifier information of the third tunnel. relationship.
  • the first information has the format as shown in Table 3:
  • Identification information 1 of the user plane device 208A Identification information of the first tunnel Identification information of user plane device 208A 2 Identification information of the second tunnel Identification information of the user plane device 2108B Identification information of the third tunnel
  • the control plane device sends the identification information of the access device and the first information (at least one of the identification information of the first tunnel and the identification information of the user plane device) allocated for the first tunnel to the user plane device.
  • the user plane device eg, user plane device 208A and/or user plane device 208B.
  • User setting After the standby is received, the establishment of the Per node per DN granular tunnel is completed.
  • the user plane device 208A After receiving the identification information of the access device and the tunnel information as shown in Table 3, the user plane device 208A establishes two different Per node per DN granular tunnels between the access device 204 and the user plane device 208A: The first tunnel and the second tunnel. After receiving the identification information of the access device and the tunnel information as shown in Table 3, the user plane device 208B establishes a third tunnel with a Per node per DN granularity between the access device 204 and the user plane device 208B.
  • the association between the access device and the control plane device is established.
  • a first tunnel with a per node per DN granularity between the access device and the user plane device is also established.
  • the establishment of the first tunnel with a per node per DN granularity between the access device and the user plane device can also be initiated by the control plane device.
  • the access device learns the information of the first tunnel, and the user plane device knows the identification information of the access device the first tunnel with a per node per DN granularity can be established.
  • the per node per DN granularity tunnel is simpler than the traditional GTP tunnel, and the number of tunnels to be established is smaller.
  • step 403 the terminal device sends a session setup request message. After receiving the session establishment request message, the access device forwards the session establishment request message to the control plane device.
  • the control plane device After receiving the session establishment request message, the control plane device obtains the identifier information of the data network to be accessed by the terminal device according to the session establishment request message.
  • the session establishment request message may carry a data network name (DNN) of a data network (such as DN1) to be accessed by the terminal device, and the control plane device determines the DN to be accessed by the terminal device according to the DNN in the session establishment request message.
  • the control plane device may obtain the subscription information of the terminal device from the home subscriber server (HSS) according to the session establishment request message, and determine according to the subscription data. The DN that the terminal device wants to access.
  • HSS home subscriber server
  • control plane device determines the address information of the terminal device and the identification information of the first session, and selects the user plane device for the terminal device according to the identification information of the data network.
  • the session establishment request message may carry the identifier information of the first session
  • the control plane device obtains the identifier information of the first session from the session establishment request message.
  • the control plane device allocates address information of the terminal device and identification information of the first session to the terminal device according to the data network to be accessed by the terminal device.
  • the address information of the terminal device includes the IP address of the terminal device.
  • the identification information of the first session includes a session identifier (session ID) of the first session.
  • the control plane device selects the user plane device 208A for the terminal device UE 202A.
  • the control plane device sends a resource setup request message carrying the second information to the access device.
  • the access device receives, from the control plane device, a resource setup request message carrying the second information.
  • the second information includes at least one of address information of the terminal device, identification information of the first session, and first information of the first tunnel (eg, identification information of the user plane device and identification information of the first tunnel) ). Therefore, the access device can obtain the terminal device address information and the identification information of the first session by parsing the resource establishment request message.
  • step 406 the access device establishes a radio bearer of the first session with the terminal device according to the identification information of the first session.
  • step 407 the access device sends a resource setup response message to the control plane device.
  • the control plane device receives the resource setup response message from the access device.
  • step 408 establishing a user interface between the access device device and the selected user plane device path. Step 408 is optional or not.
  • step 409 after receiving the resource establishment response, the control plane device sends a session setup complete message to the terminal device through the access device.
  • steps 403 to 409 are used to implement a session establishment process, where the resource establishment request message in step 405 carries the second information used to generate the association information.
  • step 410 may be performed after the session establishment process ends, or may be interspersed in the session establishment process, which is not limited herein.
  • the access device may perform step 410 between steps 406 and 407, or perform step 410 between steps 407 and 409.
  • the access device receives downlink data from the user plane device connected to the first tunnel.
  • the per node per DN tunnel associated with the first session is the first tunnel.
  • the access device is configured to determine, according to the association information, the information about the first tunnel carried in the downlink data, and the address information of the terminal device, that the downlink data is sent to the terminal device by using the radio bearer.
  • step 413 the terminal device receives downlink data through the determined radio bearer.
  • the terminal device may associate the identification information of the first session with the established radio bearer. In this way, after receiving the downlink data, the terminal device determines, in step 415, that the session to which the radio bearer belongs is the first session. It should be noted that the identifier information of the first session may be the same parameter as the identifier information of the first session delivered by the second information, or may be The same parameters.
  • FIG. 4 the first tunnel with the granularity of the per node per DN can be established before the session establishment process, and is directly used by the access device and the user plane device in the session establishment process.
  • FIG. 5 is still another schematic flowchart of a data transmission method according to an embodiment of the present application. Different from FIG. 4, in the example of FIG. 5, a first tunnel with a per node per DN granularity can be established in the session establishment process.
  • step 501 the terminal device sends a session setup request message.
  • the access device forwards the session establishment request message to the control plane device.
  • the control plane device obtains the identifier information of the data network to be accessed by the terminal device according to the session establishment request message.
  • control plane device determines the address information of the terminal device and the identification information of the first session, and selects the user plane device for the terminal device according to the identification information of the data network.
  • Steps 501 and 502 can refer to the description of steps 403 and 404, and details are not described herein again.
  • the control plane device determines, according to the identification information of the first data network and the determined user plane device, whether there is a tunnel associated with the first session, and selects to send the resource to the access device by using step 504 or 505 based on the determination result. Create a request message.
  • the identification information of the first data network may be obtained from the session establishment request message sent in step 501.
  • the control plane device can determine whether there is currently a per node per DN tunnel corresponding to the user plane device and the first data network as the tunnel associated with the first session.
  • the control plane device sends a resource setup request message to the access device, where the resource setup request message includes the first information and the second information.
  • the first information is used for the establishment of the per node per DN tunnel.
  • the second information is used to generate association information, and is further used to determine a radio bearer for transmitting downlink data to the terminal device.
  • the control plane device sends a resource setup request message to the access device, where the resource setup request message includes the second information, and may not include the first information.
  • step 506 the access device establishes a radio bearer of the first session with the terminal device according to the identification information of the first session.
  • the access device sends a resource setup response message to the control plane device.
  • the control plane device receives the resource setup response message from the access device.
  • the resource setup response message carries the identifier information of the access device.
  • the identification information of the access device includes address information of the access device.
  • step 508 a user plane path between the access device and the selected user plane device is established.
  • Step 508 is an optional step. If there is a reusable first tunnel, it may not be executed.
  • control plane device sends the identification information of the access device and the first information (the at least one of the identification information of the first tunnel and the identification information of the user plane device) allocated for the first tunnel to the user plane selected in step 502.
  • Device eg, user plane device 208A.
  • the establishment of the Per node per DN granular tunnel is completed.
  • the per node per DN granularity between the access device and the user plane device may be established through steps 504, 507, and 508.
  • the first tunnel In the subsequent session establishment process, if it is determined in step 503 that there is a first tunnel with a per node per DN granularity associated with the first session, the established first tunnel with the per node per DN granularity may be reused, and the resource sent in step 505 is established.
  • the request message can carry only the second information. If there is a reusable first tunnel, the resource setup response message in step 507 may not carry the address information of the access device, and step 508 may not be performed.
  • control plane device sends the session establishment completion to the terminal device through the access device. (session setup complete) message.
  • step 510 the access device generates association information according to the second information and the radio bearer established in step 506.
  • the access device receives downlink data from the user plane device through the first tunnel associated with the first session.
  • the access device is configured to determine, according to the association information, the first information of the first tunnel and the address information of the terminal device carried in the downlink data, to send the downlink data to the terminal device by using a radio bearer.
  • step 513 the terminal device receives downlink data through the determined radio bearer.
  • the terminal device may associate the identification information of the first session with the established radio bearer. In this way, after receiving the downlink data, the terminal device determines, in step 515, that the session to which the radio bearer belongs is the first session.
  • control plane device 206 may be performed by the MM or by the SM, and the present invention is not limited thereto.
  • the present application also discloses a data transmission method that is performed by a control plane device (e.g., control plane device 206 in FIG. 2).
  • a control plane device e.g., control plane device 206 in FIG. 2.
  • the method includes:
  • the control plane device obtains the second information, where the second information includes address information of the first terminal device, identifier information of the first session to which the radio bearer belongs, and first information of the first tunnel;
  • the control plane device transmits the second information to an access device (e.g., access device 204 in FIG. 2) connected to the first tunnel.
  • an access device e.g., access device 204 in FIG. 2
  • control plane device may obtain the second information through steps 403 and 404 in FIG. 4 or steps 501 and 502 in FIG.
  • the control plane device may transmit the second information via step 405 in FIG. 4 or step 504 or 505 in FIG.
  • the access device After the access device receives the second information, the associated information can be generated accordingly. After receiving the downlink data, the access device can accurately determine the terminal device to receive the downlink data and the radio bearer used to transmit the downlink data to the terminal device according to the association information, thereby alleviating the data packet loss problem and improving the user experience.
  • the control plane device receives the identification information of the access device from the access device;
  • the control plane device sends the first information of the first tunnel to the access device, where the first information is used to establish a first tunnel between the access device and the user plane device;
  • the control plane device sends the identification information of the access device and the first information of the first tunnel to the user plane device.
  • the method further includes:
  • the resource establishment request message includes the first information and the second information; if there is a tunnel associated with the first session, the resource is established.
  • the request message includes the second information.
  • the present application also discloses a method of establishing a per node per DN tunnel, performed by a control plane device (eg, control plane device 206 in FIG. 2).
  • a control plane device eg, control plane device 206 in FIG. 2.
  • the method includes:
  • the control plane device receives the identification information of the access device from the access device (for example, by step 401 in FIG. 4 or step 507 in FIG. 5);
  • the control plane device transmits the identification information of the access device and the first information of the first tunnel to the user plane device (eg, by step 402a in FIG. 4 or step 508 in FIG. 5).
  • each network element such as a terminal device, an access device, a control plane device, a user plane device, etc.
  • each network element such as a terminal device, an access device, a control plane device, a user plane device, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the access device can be the access device 204 as in FIG.
  • the access device may include a receiving unit 602, a transmitting unit 604, and a processing unit 606, as shown in FIG.
  • receiving unit 602 can be used to perform steps 300, 3011, or 302 in FIG. 3, steps 402, 405, or 411 in FIG. 4, or steps 504, 505, or 511 in FIG.
  • the sending unit 604 can be used to perform step 300 or 303 in FIG. 3, step 401, 407, or 413 in FIG. 4, or step 507 or 513 in FIG.
  • Processing unit 606 can be used to perform steps 301, 3012, 3013, or 303 in FIG. 3, steps 406, 410, or 412 in FIG. 4, or steps 506, 510, or 512 in FIG.
  • the control surface device may be the control surface device 206 as in FIG.
  • the control plane device may include a receiving unit 702, a transmitting unit 704, and a processing unit 706, as shown in FIG.
  • the receiving unit 702 is configured to perform steps 401, 403, or 407 in FIG. 4, or step 501 or 507 in FIG.
  • the sending unit 704 can be used to perform step 3011 in FIG. 3, step 402, 402a, 405, or 409 in FIG. 4, or step 504, 504, or 509 in FIG.
  • Processing unit 706 can be used to perform step 404 or 408 in FIG. 4, or step 502, 503, or 508 in FIG.
  • FIG. 8 is a schematic diagram showing a possible structure of an access device involved in the foregoing embodiment.
  • the access device can be the access device 204 as shown in FIG.
  • the illustrated access device includes a transceiver 802 and a controller/processor 804.
  • the transceiver 802 can be used to support the transmission and reception of information between the access device and the UE, the user plane device, and the control plane device.
  • the controller/processor 804 can be used to perform various functions for communicating with a UE or other network device, such as a user plane device, a control plane device.
  • the uplink signal from the UE is received via the antenna, coordinated by the transceiver 802, and further processed by the controller/processor 804 to recover the traffic data and signaling information transmitted by the UE.
  • the processor 804 processes and is mediated by the transceiver 802 to generate a downlink signal and transmit it to the UE via the antenna.
  • the transceiver 802 is also operative to perform the data transmission method as described in the above embodiments, for example, the transceiver includes a transmitter and a receiver.
  • the transmitter and receiver are configured to perform the transmit or receive functions of the access device of Figures 3-5.
  • the controller/processor 804 can also be used to perform the processes involved in the access device of Figures 3 through 5 and/or other processes for the techniques described herein.
  • the receiver can be used to perform steps 300, 3011, or 302 in FIG.
  • Fig. 9 shows a simplified schematic diagram of one possible design structure of the control surface device involved in the above embodiment.
  • the control surface device can be the control surface device 206 of FIG.
  • the control plane device can include a transceiver 902, a controller/processor 904.
  • a transceiver includes a transmitter and a receiver.
  • the transmitter and receiver are configured to perform the transmit or receive functions of the control plane devices of Figures 3 through 5.
  • the controller/processor 904 may also be used to perform the processes involved in the control plane device of Figures 3 through 5 and/or other processes for the techniques described herein.
  • the receiver is configured to perform steps 401, 403, or 407 in FIG. 4, or step 501 or 507 in FIG.
  • the transmitter can be used to perform step 3011 in FIG. 3, step 402, 402a, 405, or 409 in FIG. 4, or steps 504, 504 in FIG. Or 509.
  • the processor can be used to perform step 404 or 408 in FIG. 4, or step 502, 503, or 508
  • the control plane device can also include a memory 906 that can be used to store program code and data for the control plane device. It will be appreciated that Figure 9 only shows a simplified design of the control surface device. In practical applications, the control plane device may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all control plane devices that can implement the present application are within the scope of the present application. .
  • the controller/processor for performing the above described access device or control plane device of the present application may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and field programmable. Gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware or may be implemented by a processor executing software instructions.
  • the software instructions may be comprised of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage well known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment.
  • the processor and the storage medium may also reside as discrete components in the user equipment.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

La présente invention appartient au domaine des technologies de communication sans fil, et concerne un procédé de transmission de données. Selon le procédé, un dispositif d'accès acquiert des informations d'association. Les informations d'association comprennent une association entre des premières informations d'un premier tunnel, des informations d'adresse d'un terminal, et un support radio. Le dispositif d'accès reçoit des premières données de liaison descendante, d'un dispositif de plan utilisateur connecté au tunnel, et détermine l'envoi des premières données de liaison descendante au dispositif terminal via le support radio d'après les informations d'association, les informations du premier tunnel et les informations d'adresse du dispositif terminal contenues dans les premières données de liaison descendante. La solution proposée dans le mode de réalisation de l'invention permet de déterminer précisément le dispositif terminal qui recevra les données de liaison descendante et le support radio qui transmettra les données de liaison descendante au dispositif terminal. L'invention résout ainsi le problème de perte de paquet de données et améliore l'expérience de l'utilisateur.
PCT/CN2016/107297 2016-11-25 2016-11-25 Procédé, dispositif et système de transmission de données WO2018094693A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114258052A (zh) * 2022-01-04 2022-03-29 武汉光迅信息技术有限公司 数据关联系统、数据关联方法及装置、设备及介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101272315A (zh) * 2007-03-23 2008-09-24 华为技术有限公司 分组数据包传输方法、系统和网络设备
CN101304550A (zh) * 2007-05-08 2008-11-12 华为技术有限公司 提供多媒体广播/组播业务的方法及系统
US20120044836A1 (en) * 2009-04-27 2012-02-23 Sivapathalingham Sivavakeesar Mobile network, radio access node, system including a relay apparatus, and method thereof
CN104869666A (zh) * 2015-04-10 2015-08-26 电信科学技术研究院 数据无线承载配置方法、数据传输方法及设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101272315A (zh) * 2007-03-23 2008-09-24 华为技术有限公司 分组数据包传输方法、系统和网络设备
CN101304550A (zh) * 2007-05-08 2008-11-12 华为技术有限公司 提供多媒体广播/组播业务的方法及系统
US20120044836A1 (en) * 2009-04-27 2012-02-23 Sivapathalingham Sivavakeesar Mobile network, radio access node, system including a relay apparatus, and method thereof
CN104869666A (zh) * 2015-04-10 2015-08-26 电信科学技术研究院 数据无线承载配置方法、数据传输方法及设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114258052A (zh) * 2022-01-04 2022-03-29 武汉光迅信息技术有限公司 数据关联系统、数据关联方法及装置、设备及介质
CN114258052B (zh) * 2022-01-04 2024-03-15 武汉光迅信息技术有限公司 数据关联系统、数据关联方法及装置、设备及介质

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