WO2018032520A1 - 上行、下行数据传输方法和装置 - Google Patents

上行、下行数据传输方法和装置 Download PDF

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Publication number
WO2018032520A1
WO2018032520A1 PCT/CN2016/096114 CN2016096114W WO2018032520A1 WO 2018032520 A1 WO2018032520 A1 WO 2018032520A1 CN 2016096114 W CN2016096114 W CN 2016096114W WO 2018032520 A1 WO2018032520 A1 WO 2018032520A1
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WIPO (PCT)
Prior art keywords
network element
identifier
control plane
packet
data
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PCT/CN2016/096114
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English (en)
French (fr)
Inventor
李建
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华为技术有限公司
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Priority to PCT/CN2016/096114 priority Critical patent/WO2018032520A1/zh
Publication of WO2018032520A1 publication Critical patent/WO2018032520A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to an uplink and downlink data transmission method and apparatus.
  • LPWA Low Power Wide Area
  • M2M Machine to Machine
  • the business model of LPWA mostly belongs to the small packet type, and the small packet type service has the characteristics of low packet sending frequency and small number of bytes per packet.
  • EPC Evolved Packet Core
  • the signaling required for a mass terminal to establish a connection has a great impact on the network; the network connection and context storage overhead brought by the mass terminal is occupied by the network resource, which is called a capacity bottleneck; for small packet transmission, The connection efficiency and the context information also make the connection efficiency low, and the cost per connection is high, which greatly affects the access capacity of the network.
  • the embodiments of the present invention provide an uplink and downlink data transmission method and device, which can save signaling overhead for establishing a signaling connection and a data connection, and can shorten the delay of data transmission.
  • a first aspect of the present invention provides an uplink data transmission method, including:
  • the UE When the user equipment UE has an uplink data transmission, the UE sends a first uplink packet including the user packet to the control plane network element, so that the control plane network element determines the data plane processing according to the first uplink packet.
  • the network element forwards the user packet to the data plane processing network element.
  • the first uplink packet further includes the first identifier or the second identifier of the UE.
  • the signaling connection refers to a connection relationship used by the access device of the UE and the control plane network element to transmit signaling through a pre-interaction process, and the access device of the UE and the control
  • the context of the signaling connection is saved in the surface network element;
  • the data connection refers to a connection relationship between the access device of the UE and the data plane processing network element for transmitting data through a pre-interaction process, and the access device of the UE and the data plane The context in which the data connection is stored in the processing network element.
  • the method further includes:
  • the UE sends an attach or a registration message to the control plane network element, where the attach or register message includes the capability indication information of the UE and the first identifier of the UE, so that the control plane network element is configured according to the The UE capability indication information and/or the subscription information of the UE are determined, and the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding service processing.
  • the first uplink packet further includes the service indication information of the user packet, so that the control plane network element is configured according to the service indication information in the first uplink packet, and/or the The subscription information of the UE determines the data plane processing network element for the UE.
  • the first identifier of the UE is an identifier of the UE or a temporary identifier allocated by the control plane network element.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the service indication information of the user packet includes one or more of a service type, a service identifier, and service server addressing information.
  • the first uplink packet further includes security information, so that the control plane network element performs access control, security encryption, decryption, or verification processing on the first uplink packet based on the security information.
  • a second aspect of the present invention provides an uplink data transmission method, including:
  • the control plane network element receives the first uplink packet sent by the UE, where the first uplink packet includes a user packet, and the first identifier of the UE or the second identifier of the UE;
  • the control plane network element sends a second uplink packet that includes the user packet to the data plane processing network element, so that the data plane processing network element sends the user packet to the communication peer end, where
  • the second uplink packet further includes a first identifier of the UE or a second identifier of the UE.
  • the signaling connection refers to pre-interaction between the access device of the UE and the control plane network element.
  • the process establishes a connection relationship for transmitting signaling, and the access device of the UE and the control plane network element store the context of the signaling connection.
  • the method further includes:
  • the control plane network element receives an attach or registration message sent by the UE, where the attach or registration message includes capability indication information of the UE and a first identifier of the UE;
  • the control plane network element determines, according to the UE capability indication information and/or the subscription information of the UE, whether to allow the UE to send the first uplink packet to the control plane network element, and perform corresponding service processing. .
  • the first uplink packet further includes service indication information of the user packet, where the control plane network element determines, according to the first uplink packet, a data plane processing network element of the UE, where The control plane network element determines the data plane processing network element of the UE according to the service indication information of the user packet and/or the subscription information of the UE.
  • the method further includes: the control plane The network element determines the second identifier of the UE according to the first uplink packet.
  • the method further includes: the control plane network element indicating a data plane of the UE
  • the processing network element determines a second identity of the UE for the UE.
  • the first uplink packet further includes service indication information of the user packet, where the control plane network element determines the second identifier of the UE according to the first uplink packet, specifically: The control plane network element determines the second identifier of the UE according to the service indication information of the user packet and/or the subscription information of the UE.
  • the first identifier of the UE is an identifier of the UE or a temporary identifier allocated by the control plane network element.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the service indication information of the user packet includes one or more of a service type, a service identifier, and service server addressing information.
  • the first uplink packet further includes security information
  • the control plane network element before determining the data plane processing network element of the UE according to the first uplink packet, further includes: The control plane network element performs access control, security encryption and decryption, or verification processing on the first uplink packet according to the security information.
  • control plane network element is one or more of a mobility management entity or a session management entity.
  • the control plane network element when the control plane network element sends the second uplink packet to the data plane processing network element, the context information of the UE is carried in the second uplink packet and sent to the data plane. Processing the network element; or, the control plane network element sends the context information of the UE to the data plane processing network by using a signaling manner before sending the second uplink packet to the data plane processing network element. yuan.
  • the context information of the UE includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and a communication peer address.
  • a third aspect of the present invention provides an uplink data transmission method, including:
  • the data plane processing network element receives the second uplink packet sent by the control plane network element and the context information of the user equipment UE, where the second uplink packet includes the user packet of the UE, and the UE An identifier or a second identifier of the UE;
  • the data plane processing network element encapsulates the user packet into a third uplink packet, and sends the third uplink packet to the communication peer end, where the third uplink packet includes the user The message and the second identifier of the UE.
  • the data connection between the access device of the UE and the data plane processing network element does not exist.
  • the data connection refers to a connection relationship between the access device of the UE and the data plane processing network element, which is established by using a pre-interaction process for transmitting data, and the access device of the UE and the The context of the data connection is stored in the data plane processing network element.
  • the uplink information of the UE is carried in the second uplink packet, or the uplink information of the UE is sent by the control plane network element to the data plane processing network by using signaling yuan.
  • the UE context information includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and the communication peer address.
  • the second uplink packet further includes the service indication information of the user packet, where the data plane processing network element determines the communication peer according to the second uplink packet and/or the context information of the UE. Specifically, the data plane processing network element determines the communication peer end according to the service indication information of the user packet and/or the communication peer address information in the context information of the UE.
  • the data plane processing network element encapsulates the user packet into a third uplink packet, where the data plane processing network element obtains the UE from the second uplink packet.
  • the second identifier is used to encapsulate the second identifier of the UE and the user packet in the third uplink packet.
  • the control plane network element indicates that the data plane processing network element determines the second identifier of the UE for the UE
  • the data plane processing network element is configured according to the first identifier of the UE or the
  • the service indication information of the user packet included in the second uplink packet is used to determine the second identifier of the UE, and the second identifier of the UE and the user packet are encapsulated in the third uplink packet.
  • the control plane network element indicates that the data plane processing network element determines the second identifier of the UE for the UE
  • the data plane processing network element determines according to locally saved context information of the UE.
  • the second identifier of the UE encapsulates the second identifier of the UE and the user packet in the third uplink packet.
  • a fourth aspect of the present invention provides a downlink data transmission method, including:
  • the data plane processing network element receives the first downlink packet, where the first downlink packet includes a user packet and a second identifier of the user equipment UE;
  • the data processing network element generates a second downlink packet according to the first downlink packet, where the second downlink packet includes the user packet, and the first identifier of the UE or the UE Second identifier
  • the data plane processing network element sends a second downlink packet to the control plane network element.
  • the second downlink packet and the third downlink packet further include service indication information of the user packet.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the data plane processing network element determines, according to the second identifier of the UE, a control plane network element of the UE, where the data plane processing network element is configured according to the second identifier of the UE, and The control plane network element of the UE is determined by the locally stored correspondence between the control plane network element of the UE and the second identifier of the UE.
  • the data plane processing network element determines, according to the second identifier of the UE, the control plane network element of the UE, where the data plane processing network element sends a first request message to the user data server, where The first request message includes a second identifier of the UE, where the first request message is used to request to obtain an identifier of a control plane network element of the UE; and the data plane processing network element receives the user data server. And sending, by the first response message, the identifier of the control plane network element.
  • the data plane processing network element sends the second downlink packet to the control plane network element, where the data plane processing network element sends the control plane network element according to the state of the UE. Sending the second downlink packet.
  • a fifth aspect of the present invention provides a downlink data transmission method, including:
  • the control plane network element receives the second downlink packet sent by the data plane processing network element, where the second downlink packet includes the user packet, and the first identifier of the UE or the second identifier of the UE;
  • the control plane network element is configured according to the first identifier of the UE or the second identifier of the UE, And determining, by the context information of the UE that is locally saved, an access device of the UE;
  • the control plane network element generates a third downlink packet according to the second downlink packet, where the third downlink packet includes the user packet and the first identifier of the UE;
  • the control plane network element sends the third downlink packet to the access device of the UE.
  • the signaling connection refers to pre-interaction between the access device of the UE and the control plane network element.
  • the process establishes a connection relationship for transmitting signaling, and the access device of the UE and the control plane network element store the context of the signaling connection.
  • the second downlink packet and the third downlink packet further include service indication information of the user packet.
  • control plane network element determines the access device of the UE according to the first identifier of the UE or the second identifier of the UE, and the context information of the UE, the control plane network element further includes:
  • the control plane network element receives an attach or registration message sent by the UE, where the attach or registration message includes capability indication information of the UE, and the control plane network element according to the UE capability indication information and/or the UE
  • the contract information is used to determine whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and perform corresponding service processing;
  • the control plane network element generates and saves context information of the UE according to the attach or registration message.
  • control plane network element sends the third downlink packet to the access device of the UE, where the control plane network element connects to the UE according to the state information of the UE.
  • the ingress device sends the third downlink packet.
  • a sixth aspect of the present invention provides a downlink data transmission method, including:
  • the UE receives the third downlink packet that is sent by the control plane network element, where the third downlink packet includes the user packet and the first identifier of the UE.
  • the signaling connection refers to a connection relationship used by the access device of the UE and the control plane network element to transmit signaling through a pre-interaction process, and the access device of the UE and the control
  • the context of the signaling connection is saved in the surface network element;
  • the data connection refers to the communication between the access device of the UE and the data plane processing network element.
  • a connection relationship for transmitting data established by a pre-interaction process, and an access device of the UE and a context of the data connection are saved in the data plane processing network element.
  • the method further includes: receiving, by the UE, the attach or registration message sent by the UE to the control plane network element, where the attaching or registering The message includes the capability indication information of the UE and the first identifier of the UE, and the control plane network element determines whether to allow the UE to the control plane network according to the UE capability indication information and/or the subscription information of the UE.
  • the element sends a first uplink packet containing the user packet, and performs corresponding service processing.
  • the third downlink packet further includes service indication information of the user packet.
  • a seventh aspect of the present invention provides a UE, including:
  • a sending module configured to: when the UE has an uplink data transmission, send, to the control plane network element, a first uplink packet that includes the user packet, so that the control plane network element determines the data plane processing according to the first uplink packet The network element forwards the user packet to the data plane processing network element for further processing, where the first uplink packet further includes the first identifier or the second identifier of the UE.
  • the signaling connection refers to a connection relationship used by the access device of the UE and the control plane network element to transmit signaling through a pre-interaction process, and the access device of the UE and the control
  • the context of the signaling connection is saved in the surface network element;
  • the data connection refers to a connection relationship between the access device of the UE and the data plane processing network element for transmitting data through a pre-interaction process, and the access device of the UE and the data plane The context in which the signaling connection is stored in the processing network element.
  • the sending module is further configured to: send an attach or a registration message to the control plane network element, where the attach or register message includes the capability indication information of the UE and the first identifier of the UE, so that The control plane network element determines, according to the UE capability indication information and/or the subscription information of the UE, whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding Business processing.
  • the first uplink packet further includes the service indication information of the user packet, so that the control plane network element is configured according to the service indication information in the first uplink packet, and/or the The subscription information of the UE determines the data plane processing network element for the UE.
  • the first uplink packet further includes security information, so that the control plane network element performs access control, security encryption, decryption, or verification processing on the first uplink packet based on the security information.
  • An eighth aspect of the present invention provides a control plane network element, including:
  • a receiving module configured to receive a first uplink packet sent by the user equipment UE, where the first uplink packet includes a user packet, and the first identifier of the UE or the second identifier of the UE;
  • a first determining module configured to determine, according to the first uplink packet, a data plane processing network element of the UE
  • a sending module configured to send, to the data plane processing network element, a second uplink packet that includes the user packet, so that the data plane processing network element sends the user packet to the communication peer end, where
  • the second uplink packet further includes a first identifier of the UE or a second identifier of the UE.
  • the signaling connection refers to pre-interaction between the access device of the UE and the control plane network element.
  • the process establishes a connection relationship for transmitting signaling, and the access device of the UE and the control plane network element store the context of the signaling connection.
  • the receiving module is further configured to: before receiving the first uplink packet that is sent by the UE, receive an attach or registration message sent by the UE, where the attach or registration message includes the capability indication information of the UE. And a first identifier of the UE.
  • the control plane network element further includes a second determining module, configured to determine, according to the UE capability indication information and/or the subscription information of the UE, whether to allow the UE to the control plane network element The sending includes the first uplink packet and performing corresponding service processing.
  • the first uplink packet further includes the service indication information of the user packet
  • the first determining module is specifically configured to: according to the service indication information of the user packet, and/or The subscription information of the UE determines a data plane processing network element of the UE.
  • the control plane network element when the first uplink packet includes the first identifier of the UE, and the second uplink packet includes the second identifier of the UE, the control plane network element further includes a third identifier. a determining module, where the third determining module is configured to determine a second identifier of the UE according to the first uplink packet.
  • the control plane network element further includes an indication module, where the indication module is configured to indicate that the data plane processing network element of the UE determines the second identifier of the UE for the UE.
  • the first uplink packet further includes the service indication information of the user packet
  • the third determining module is specifically configured to: according to the service indication information of the user packet, and/or The subscription information of the UE determines a second identifier of the UE.
  • the first uplink packet further includes security information
  • the control plane network element further includes an access control module, where the access control module is configured to: according to the security information
  • An uplink message performs access control, security encryption and decryption, or authentication processing.
  • the sending module is further configured to: when the second uplink packet is sent to the data plane processing network element, carry the context information of the UE in the second uplink packet, and send the The data plane processing network element; or, before sending the second uplink message to the data plane processing network element, sending the context information of the UE to the data plane processing network element by using a signaling manner.
  • the context information of the UE includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and a communication peer address.
  • a ninth aspect of the present invention provides a data plane processing network element, including:
  • a receiving module configured to receive a second uplink packet sent by the control plane network element and context information of the user equipment UE, where the second uplink packet includes the user packet of the UE, and the UE An identifier or a second identifier of the UE;
  • a determining module configured to determine a communication peer according to the second uplink packet and/or the context information of the UE
  • the encapsulating module is configured to encapsulate the user packet into a third uplink packet, where the third uplink packet includes the user packet and a second identifier of the UE;
  • a sending module configured to send the third uplink packet to the communication peer end.
  • the second uplink packet further includes service indication information of the user packet
  • the determining module is specifically configured to: determine the communication peer according to the service indication information of the user packet and/or the communication peer address information in the context information of the UE.
  • the encapsulating module is configured to: obtain a second identifier of the UE from the second uplink packet, and encapsulate the second identifier of the UE and the user packet in the third In the uplink message.
  • the control plane network element indicates that the data plane processing network element determines the second identifier of the UE for the UE, according to the first identifier of the UE or the second uplink packet
  • the service indication information of the user packet is used to determine the second identifier of the UE, and the second identifier of the UE and the user packet are encapsulated in the third uplink packet.
  • control plane network element instructs the data plane processing network element to determine the second identifier of the UE for the UE, determining the second identifier of the UE according to the locally saved context information of the UE. Encapsulating the second identifier of the UE and the user packet in the third uplink packet.
  • a tenth aspect of the present invention provides a data plane processing network element, including:
  • a receiving module configured to receive a first downlink packet, where the first downlink packet includes a user packet and a second identifier of the user equipment UE;
  • a determining module configured to determine, according to the second identifier of the UE, a control plane network element of the UE;
  • a generating module configured to generate a second downlink packet according to the first downlink packet, where the second downlink packet includes the user packet, and the first identifier of the UE or the UE Two logos;
  • a sending module configured to send, to the control plane network element, a second downlink packet.
  • the second downlink packet further includes service indication information of the user packet.
  • the determining module is specifically configured to: determine, according to the second identifier of the UE, and the locally saved correspondence between the control plane network element of the UE and the second identifier of the UE, Control plane network element.
  • the determining module is specifically configured to: send, by using the sending module, a first request message to a user data server, where the first request message includes a second identifier of the UE, where The first request message is used to request to obtain the identifier of the control plane network element of the UE; the first response message sent by the user data server is received by the receiving module, where the first response message includes the control plane ID of the network element.
  • the sending module is specifically configured to: send the second downlink packet to the control plane network element according to the state of the UE.
  • the eleventh aspect of the present invention provides a control plane network element, including:
  • a receiving module configured to receive a second downlink packet sent by the data plane processing network element, where the second downlink packet includes the user packet, and the first identifier of the UE or the second identifier of the UE;
  • a determining module configured to determine, according to the first identifier of the UE or the second identifier of the UE, and the locally saved context information of the UE, an access device of the UE;
  • a first generating module configured to generate a third downlink packet according to the second downlink packet, where the third downlink packet includes the user packet and a first identifier of the UE;
  • a sending module configured to send the first downlink packet to an access device of the UE.
  • the signaling connection refers to pre-interaction between the access device of the UE and the control plane network element.
  • the process establishes a connection relationship for transmitting signaling, and the access device of the UE and the control plane network element store the context of the signaling connection.
  • the second downlink packet and the third downlink packet further include service indication information of the user packet.
  • the receiving module is further configured to: receive an attach or a registration message sent by the UE, where the attach or register message includes capability indication information of the UE, and the control plane network element according to the UE capability indication information And/or the subscription information of the UE, determining whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performing corresponding service processing; correspondingly, the controlling The network element further includes a second generation module, and the second generation module is configured to generate and save context information of the UE according to the attach or registration message.
  • the sending module is specifically configured to: send the third downlink packet to the access device of the UE according to the state information of the UE.
  • a twelfth aspect of the present invention provides a UE, including:
  • a receiving module configured to receive a third downlink packet sent by the control plane network element, where the third downlink The message includes a user message and a first identifier of the UE.
  • the signaling connection refers to a connection relationship used by the access device of the UE and the control plane network element to transmit signaling through a pre-interaction process, and the access device of the UE and the control
  • the context of the signaling connection is saved in the surface network element;
  • the data connection refers to a connection relationship between the access device of the UE and the data plane processing network element for transmitting data through a pre-interaction process, and the access device of the UE and the data plane The context in which the data connection is stored in the processing network element.
  • the UE further includes:
  • a sending module configured to receive, by the control plane network element, an attach or registration message sent by the UE, where the attach or register message includes capability indication information of the UE and a first identifier of the UE, and a control plane network And determining, according to the UE capability indication information and/or the subscription information of the UE, whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding service processing.
  • a thirteenth aspect of the present invention provides a UE, including: a processor, a memory, a communication interface, and a system bus, where the memory and the communication interface are connected to the processor through the system bus, and complete communication with each other,
  • the memory is for storing computer execution instructions for communicating with other devices for operating the computer to execute instructions to perform the method provided by the first aspect of the invention.
  • a fourteenth aspect of the present invention provides a control plane network element, including: a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and complete each other
  • the communication is for storing computer execution instructions for communicating with other devices, the processor for executing the computer to execute instructions to perform the method provided by the second aspect of the present invention.
  • a fifteenth aspect of the present invention provides a data plane processing network element, including: a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and complete each other Inter-communication, the memory is for storing computer execution instructions, the communication interface is for communicating with other devices, and the processor is configured to execute the computer to execute instructions to perform the method provided by the third aspect of the invention.
  • a sixteenth aspect of the present invention provides a data plane processing network element, including: a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and complete each other Inter-communication, the memory is for storing computer execution instructions, the communication interface is for communicating with other devices, and the processor is configured to execute the computer to execute instructions to perform the method provided by the fourth aspect of the present invention.
  • a seventeenth aspect of the present invention provides a control plane network element, including: a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and complete each other
  • the communication is for storing computer execution instructions for communicating with other devices, the processor for executing the computer to execute instructions to perform the method provided by the fifth aspect of the present invention.
  • An eighteenth aspect of the present invention provides a UE, including: a processor, a memory, a communication interface, and a system bus, where the memory and the communication interface are connected to the processor through the system bus, and complete communication with each other,
  • the memory is for storing computer execution instructions for communicating with other devices for operating the computer to execute instructions to perform the method provided by the sixth aspect of the invention.
  • the UE supports connectionless data transmission
  • the control plane network element does not establish a default bearer for the UE during the UE attach or registration process
  • the access device and control of the UE There is no signaling connection and data connection between the surface network elements.
  • the NAS message is used to transmit the uplink data. Since the control plane network element does not establish a signaling connection and a data connection for the UE, the signaling overhead for establishing the signaling connection and the data connection is saved, and the delay of the uplink data transmission can be shortened.
  • FIG. 1 is a schematic diagram of a network architecture to which the present invention is applicable
  • FIG. 3 is a signaling flowchart of a downlink data transmission method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a control plane network element according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a data plane processing network element according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of a data plane processing network element according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a control plane network element according to Embodiment 7 of the present invention.
  • FIG. 8 is a schematic structural diagram of a UE according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic structural diagram of a UE according to Embodiment 9 of the present invention.
  • FIG. 10 is a schematic structural diagram of a control plane network element according to Embodiment 10 of the present invention.
  • FIG. 11 is a schematic structural diagram of a data plane processing network element according to Embodiment 11 of the present invention.
  • FIG. 1 is a schematic diagram of a network architecture applicable to the present invention.
  • the network architecture includes: a UE, an access device, a control plane network element, a data plane processing network element, and an application server (App Server). It may also include a Home Subscriber Server (HSS).
  • HSS Home Subscriber Server
  • the UE may be a wireless terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with at least one core network via a Radio Access Network (RAN).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device,
  • the wireless access network exchanges voice and/or data.
  • a wireless terminal may also be called a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, a Remote Station, an Access Point, and a remote terminal. Remote Terminal, Access Terminal, User Terminal (User Terminal) or User Agent (User Agent), which is not limited here.
  • the user equipment involved in the embodiment of the present invention may be a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • Base Transceiver Station which can also be a base station (NodeB, NB for short) in Wideband Code Division Multiple Access (WCDMA) system, or long term evolution (Long Term Evolution)
  • An access point (AP) or a relay station in an evolved NodeB (eNB) or WIreless-Fidelity (WIFI) system which may be a 5G system.
  • the base station or the like is not limited herein.
  • the control plane network element may be a Mobility Management Entity (MME) in an LTE system or a control plane network element in a 5G system, or a device having similar functions in other systems.
  • MME Mobility Management Entity
  • the control plane network element mainly provides functions such as attachment/registration, authentication, encryption, access control, terminal management, mobility management, data packet routing and forwarding, policy control, and accounting. If the mobility management part and the session management part of the control plane are divided into two network elements, they belong to the control plane network element here.
  • the data plane processing network element may be a packet data network gateway (PGW) or a traffic proxy (Traffic Proxy), and the data plane processing network element serves as a unified exit of the data plane, and provides data packet routing and forwarding, and policy charging. , protocol encapsulation / conversion, traffic buffer and other functions.
  • PGW packet data network gateway
  • Traffic Proxy Traffic Proxy
  • An application server is a server that provides services.
  • FIG. 2 is a signaling flowchart of an uplink data transmission method according to Embodiment 1 of the present invention. As shown in FIG. 2, the method provided in this embodiment is provided. The steps can be included:
  • Step 101 The UE initiates a random access procedure to the access device.
  • the UE accesses the access device through a random access channel (RACH).
  • RACH random access channel
  • Step 102 The UE sends an attach or registration message to the access device.
  • Step 103 The access device sends an attach or registration message to the control plane network element.
  • the Attach message or the registration message includes the capability indication information of the UE and the first identifier of the UE, where the capability indication information is used to indicate that the UE supports connectionless data transmission, where the connection includes a signaling connection and a data connection, and the attachment or The registration message is used to request to establish context information for the UE.
  • the EPS or the ESM message related network element is used to trigger the default bearer establishment.
  • Step 104 Perform a security procedure between the control plane network element and the HSS.
  • Step 105 Perform an authentication procedure between the control plane network element and the UE.
  • the control plane network element receives the attachment or registration message sent by the access device of the UE, and the capability indication information of the UE included in the registration or the registration message indicates that the UE supports connectionless data transmission, and does not carry the ESM Message related network element.
  • the control plane network element does not initiate the default bearer establishment process according to the attach or registration message, but only performs the security authentication process.
  • the default bearer setup process is not initiated, that is, the S1 interface does not initiate the establishment of the S1 user plane interface (that is, the S1_U interface), the air interface does not initiate the establishment of the data radio bearer (DRB), and the S5/S8 interface does not initiate the user plane.
  • GTP-U GPRS Tunnelling Protocol-User
  • Step 106 The control plane network element determines, according to the capability indication and/or the subscription information of the UE, whether the UE allows the UE to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding service processing.
  • the control plane network element determines whether the UE allows the UE to send the first uplink packet containing the user packet to the control plane network element, and performs corresponding service processing, that is, allows the UE to perform connectionless data transmission.
  • the control plane network element may further allocate an IP address to the UE, and send the IP address of the UE to the data plane processing network element.
  • the control plane network element may use dedicated signaling or an uplink report. The text is sent to the data plane processing network element.
  • the control plane network element may also not allocate an IP address to the UE, but instruct the data plane processing network element to allocate an IP address to the UE. If the control plane network element assigns an IP address to the UE, the IP address is saved in the context information of the UE.
  • Step 107 The control plane network element sends an attach or attach accept message to the access device.
  • the UE may send the permission indication information to the UE, and the permission indication is passed.
  • the information informs the UE that the control plane network element allows the UE to send the first uplink packet including the user packet, and performs corresponding service processing.
  • the permission indication information may be carried in an attach or registration accept message or may be sent through dedicated signaling.
  • the UE sends the reject indication information to the UE, and notifies the UE of the control plane network by using the reject indication information.
  • the UE does not allow the UE to send the first uplink packet containing the user packet and perform corresponding service processing.
  • the demise indication information may be carried in an attach or registration accept message or may be sent by dedicated signaling.
  • the control plane network element allows the UE to send the first uplink packet including the user packet to the control plane network element, and performs corresponding service processing, the UE does not send the permission indication information to the UE.
  • the network element does not allow the UE to send the first uplink packet containing the user packet to the control plane network element, and then sends the reject indication information to the UE. If the UE does not receive the refusal indication information within a certain period of time, the default control plane network element allows the UE to send the first uplink packet including the user packet to the control plane network element.
  • Step 108 The access device sends an attach or registration accept message to the UE.
  • Step 109 The UE sends an attach or registration complete message (attach complete) to the access device.
  • Step 110 The access device sends an attach or registration completion message to the control plane network element.
  • step 103 to step 110 are the complete attaching or registering procedure of the UE in the embodiment of the present invention.
  • the default bearer is not established in the attaching or registering process of the UE. Therefore, the UE in the solution in this embodiment
  • the signaling connection refers to the access device and control plane of the UE.
  • a connection relationship for transmitting signaling established by the pre-interaction process between the network elements, and the context of the signaling connection is stored in the access device and the control plane network element of the UE.
  • the data connection refers to a connection relationship between the access device of the UE and the data plane processing network element for transmitting data through a pre-interaction process, and the context of the data connection is saved in the access device of the UE and the data plane processing network element. .
  • the control plane network element establishes context information for the UE in the UE attach or registration procedure.
  • the context information of the UE includes but is not limited to: the first identifier of the UE, security information, subscription information, and access settings. Information, status information, etc.
  • the identifier of the UE, the information about the access device, and the status information can be directly generated by the control plane network element.
  • the subscription information and the security information may need to be obtained by other devices. For example, the control plane network element obtains the subscription information from the HSS.
  • the first identifier of the UE is the identifier of the UE or the temporary identifier of the control plane network element, for example, an International Mobile Subscriber Identification Number (IMSI), and a Globally Unique Temporary UE Identity (Globally Unique Temporary UE Identity, Referred to as GUTI), Temporary Mobile Subscriber Identity (TMSI).
  • IMSI International Mobile Subscriber Identification Number
  • GUTI Globally Unique Temporary UE Identity
  • TMSI Temporary Mobile Subscriber Identity
  • control plane network element may further send part of the context information of the UE to the data plane processing network element.
  • control plane network element may send the context information of the UE to the data plane processing network element by using dedicated signaling during the UE attaching or registering process; in another implementation manner, the control plane network element may also be in the subsequent data transmission process.
  • the control plane network element carries the context information of the UE in the uplink packet and sends it to the data plane processing network element, where the uplink packet refers to the data packet.
  • Step 111 The UE sends a first uplink packet to the control plane network element.
  • the UE When the UE has the uplink data transmission, the UE sends the first uplink packet to the control plane network element, and the UE sends the first uplink packet to the access device, and the access device forwards the packet to the control plane network element.
  • the first uplink packet includes a user identifier, a first identifier of the UE, or a second identifier of the UE, where the second identifier of the UE is an IP address, an external identifier of the UE, or a phone number. Since there is no signaling connection or data connection between the access device of the UE and the control plane network element, the connection between the access device and the control plane network element of the UE does not save the connection context, and the control plane network element cannot pass the connection identification report.
  • the uplink packet sent by the UE includes the first identifier or the second identifier of the UE, so that the control plane network element identifies, according to the first identifier or the second identifier of the UE, which UE the uplink packet is from. .
  • the first uplink packet further includes service indication information and/or security information of the user packet.
  • the service indication information of the user packet includes one or more of a service type, a service identifier, and a service server addressing information, where the service indication information is used by the control plane network element to determine a data plane processing network element for the UE.
  • the security information is used by the control plane network element to perform access control, security encryption and decryption, or verification processing on the first uplink packet.
  • the first uplink packet is a NAS message, and the default bearer is not established for the UE in the attaching process.
  • the service request is not triggered by the service request. Instead, directly encapsulate users with NAS messages.
  • the message is delivered.
  • the NAS message is, for example, a Control Plane Service Request message or other NAS message.
  • Step 112 The control plane network element determines, according to the first uplink packet, a data plane processing network element of the UE.
  • the control plane network element receives the first uplink packet, where the first uplink packet includes the user packet, and the first identifier of the UE or the second identifier of the UE.
  • the first uplink packet further includes uplink data.
  • Business indication information When the first uplink packet includes the service indication information of the user packet, the service indication information of the network element user message and/or the subscription information of the UE are controlled, and the data plane processing network element of the UE is determined.
  • the control plane network element determines that the default data plane processing network element is the data plane processing network element of the UE, where the default data network element is in the attaching or registration process of the UE.
  • the control plane network element is determined for the UE according to the context information of the UE. After determining the data plane processing network element of the UE, the control plane network element saves the identifier of the data plane processing network element in the context of the UE.
  • the first uplink packet further includes security information, where the control plane network element determines, before the data plane processing network element of the UE, the control plane network element, the control plane network element, according to the security information, the first uplink packet.
  • the text performs access control, security encryption and decryption or verification processing.
  • Step 113 The control plane network element sends a second uplink packet to the data plane processing network element.
  • the control plane network element generates a second uplink packet according to the first uplink packet, and sends a second uplink packet to the data plane processing network element, so that the data plane processing network element sends the user packet to the communication peer end, and second
  • the uplink packet includes a user packet, and the first identifier of the UE or the second identifier of the UE.
  • the second uplink packet further includes the service indication information of the user packet, and/or the uplink information of the UE, where the context information of the UE includes the second identifier of the UE, the first identifier of the UE, and the control plane network.
  • the control plane network element may send the context information of the UE to the data plane processing network element by using a signaling manner before sending the second uplink packet to the data plane processing network element.
  • the communication peer end is determined by the control plane network element, and the control plane network element may determine the communication according to the service indication information of the user packet and/or the uplink information of the UE. Peer.
  • the control plane network element sends the identifier of the control plane network element to the data plane processing network element for the purpose of: the data plane processing network element performs downlink data forwarding.
  • the control plane network element is further configured to determine the second identifier of the UE by using the first uplink packet.
  • the control plane network element determines the second identifier of the UE according to the service indication information of the user packet and/or the subscription information of the UE.
  • the control plane network element may instruct the data plane processing network element of the UE to determine the second identifier of the UE for the UE.
  • control plane network element there may be a signaling connection and a data connection between the control plane network element and the data plane processing network element, or there may be no signaling connection and data connection.
  • Step 114 The data plane processing network element determines the communication peer end according to the second uplink packet and/or the context information of the UE.
  • the second uplink packet includes the service indication information of the user packet
  • the data plane processing network element may determine the communication peer end according to the service indication information of the user packet and the context information of the UE.
  • the second uplink packet does not include the service indication information of the user packet, but the uplink information of the UE includes the address of the communication peer, and the data plane processing network element determines the communication pair according to the context information of the UE.
  • the communication peer is, for example, an application server.
  • Step 115 The data plane processing network element encapsulates the user packet into a third uplink packet.
  • the third uplink packet includes the user packet and the second identifier of the UE, and the data plane processing network element encapsulates the user packet into the third uplink packet, specifically:
  • the data plane processing network element obtains the second identifier of the UE from the second uplink packet, and encapsulates the second identifier of the UE and the user packet.
  • Three uplink messages are possible.
  • the data plane processing network element may determine the second identifier of the UE according to the indication of the control plane network element. Specifically, the data plane processing network element is configured according to the UE.
  • the service indication information of the user packet included in the first identifier or the second uplink packet is used to determine the second identifier of the UE, and the second identifier of the UE and the user packet are encapsulated in the third uplink packet.
  • the data plane processing network element may determine the second identifier of the UE according to the indication of the control plane network element. Specifically, the data plane processing network element is saved according to the local The context information of the UE determines the second identifier of the UE, and encapsulates the second identifier of the UE and the user packet in the third uplink packet.
  • the data plane processing network element saves the correspondence between the identifier of the control plane network element and the second identifier of the UE to the context information of the UE.
  • the subsequent data plane processing network element may forward the downlink packet according to the corresponding relationship.
  • the data plane processing network element may encapsulate the user packet according to the protocol used by the communication peer end to obtain the third uplink packet, which may include the encapsulation of the IP address of the UE, the encapsulation of the transport layer protocol, and the application layer protocol. Encapsulation and encapsulation of tunneling protocols, etc., wherein the transport layer protocol includes but is not limited to a Transmission Control Protocol (TCP), a User Datagram Protocol (UDP), and a Datagram Transport Layer Security (Datagram).
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • Datagram Datagram Transport Layer Security
  • Transport Layer Security (DTLS) protocol etc.
  • application layer protocols include, but are not limited to, HyperText Transfer Protoco (HTTP), Constrained Application Protocol (CoAP), Message Queue Telemetry (Message) Queuing Telemetry Transport (MQTT) protocol, Advanced Message Queuing Protocol (AMQT) protocol, etc.
  • HTTP HyperText Transfer Protoco
  • CoAP Constrained Application Protocol
  • MQTT Message Queue Telemetry
  • AMQT Advanced Message Queuing Protocol
  • the third uplink packet further includes an IP address of the UE.
  • the IP address of the UE may be allocated by the control plane network element and sent to the data plane processing network element, or may be allocated by the data plane processing network element.
  • the control plane network element instructs the data plane processing network element to allocate an IP address to the UE, and the data plane processing network element allocates an IP address to the UE according to the indication of the control plane network element; in another implementation manner, the data plane
  • the processing network element determines whether to assign an IP address to the UE according to the situation of the communication peer. If it is determined that the UE is assigned an IP address, the UE is assigned an IP address according to the rule.
  • Step 116 The data plane processing network element sends the third uplink packet to the communication peer end.
  • Step 117 The communication peer end processes the third uplink packet.
  • the communication peer receives the third uplink packet sent by the data plane processing network element, and processes the uplink data.
  • the UE supports connectionless data transmission.
  • the control plane network element does not establish a default bearer for the UE, and there is no signaling connection between the access device of the UE and the control plane network element. There is no data connection between the access device of the UE and the data plane processing network element.
  • the NAS message is used to transmit the user message. Since the control plane network element does not establish a signaling connection and a data connection for the UE, the signaling overhead for establishing the signaling connection and the data connection is saved, and the delay of the uplink data transmission can be shortened.
  • FIG. 3 is a signaling flowchart of a downlink data transmission method according to Embodiment 2 of the present invention, as shown in FIG. As shown in FIG. 3, the method provided in this embodiment may include the following steps:
  • Step 201 Attachment or registration process of the UE.
  • the default bearer is not established in the process of attaching or registering the UE. Therefore, in the solution of the embodiment, there is no signaling connection between the access device of the UE and the control plane network element, and the access device of the UE There is no data connection with the data plane processing network element, and the control plane network element establishes context information for the UE in the UE attach or registration process.
  • the context information of the UE includes, but is not limited to, an identifier of the UE, security information, subscription information, access device information, status information, and the like.
  • Step 202 The communication peer sends the first downlink packet to the data plane processing network element.
  • the first downlink packet includes a user packet and a second identifier of the UE.
  • Step 203 The data plane processing network element determines, according to the second identifier of the UE, the control plane network element of the UE, and generates the second downlink packet according to the first downlink packet.
  • the data plane processing network element determines the control plane network element of the UE according to the second identifier of the UE and the corresponding relationship between the locally controlled control plane network element and the second identifier of the UE.
  • the data plane processing network element sends a first request message to the user data server (for example, the HSS), where the first request message includes the second identifier of the UE, where the first request message is used to request to acquire the control plane of the UE.
  • the HSS sends a first response message to the service processing network element according to the first request message.
  • the data plane processing network element receives the first response message sent by the HSS, where the first response message includes the identifier of the control plane network element.
  • the data plane processing network element generates a second downlink packet according to the first downlink packet, where the second downlink packet includes the user packet, and the first identifier of the UE or the second identifier of the UE.
  • the second downlink packet further includes service indication information of the user packet.
  • the data plane processing network element decapsulates the first downlink packet, and determines the service indication information of the user packet according to the application layer protocol or the transport layer port number of the first downlink packet.
  • the data plane processing network element further determines the first identifier of the UE according to the second identifier of the UE and the locally saved UE context information, and carries the first identifier of the UE in the second downlink packet, and the second downlink packet
  • the text is NAS message.
  • Step 204 The data plane processing network element sends a second downlink packet to the control plane network element.
  • the data plane processing network element directly sends the second downlink packet to the control plane network element.
  • the data plane processing network element sends the control plane network element according to the state of the UE.
  • the second downlink packet is sent. For example, if the UE is in the dormant state, the data plane processing network element may buffer the second downlink packet, and after the UE wakes up from the sleep state, send the second downlink packet to the control plane network element.
  • the state information of the UE is stored in the uplink information of the UE, and may be actively sent by the control plane network element to the data plane processing network element, or the data plane processing network element requests the control plane network element to obtain the state information of the UE. .
  • Step 205 The control plane network element determines the access device of the UE according to the first identifier of the UE or the second identifier of the UE, and the context information of the locally saved UE, and generates a third downlink packet according to the second downlink packet.
  • the context information of the uplink UE of the UE includes the access device information of the UE, and the control plane network element determines the access network device of the UE according to the context information of the UE. If the second downlink packet includes the second identifier of the UE, the control plane The network element also needs to determine the first identifier of the UE according to the second identifier of the UE.
  • the third downlink packet generated by the control plane network element includes a user packet and a first identifier of the UE. Optionally, the third downlink packet further includes service indication information of the user packet.
  • Step 206 The control plane network element sends the third downlink packet to the access device of the UE.
  • the control plane network element directly sends the third downlink packet to the access device of the UE.
  • the control plane network element determines whether to send the first to the access device of the UE according to the state of the UE.
  • the third downlink packet for example, if the UE is currently in the dormant state, the control plane network element buffers the third downlink packet, and after the UE wakes up from the dormant state, sends the third downlink packet to the access device of the UE, if If the UE is currently in the awake state, the third downlink packet is directly sent to the access device of the UE.
  • the control plane network element does not need to determine whether to send the third to the access device of the UE according to the state of the UE. Downstream message.
  • Step 207 The access device of the UE sends a third downlink packet to the UE.
  • the access device of the UE receives the third downlink packet sent by the control plane network element, and sends the third downlink packet to the UE according to the first identifier of the UE included in the third downlink packet.
  • the UE supports connectionless data transmission.
  • the control plane network element does not establish a default bearer for the UE, and there is no signaling connection between the access device of the UE and the control plane network element. There is no data connection between the access device of the UE and the data plane processing network element.
  • the NAS message is used to transmit the uplink data. Since the control plane network element does not establish a signaling connection and a data connection for the UE, the signaling connection and the number are saved. According to the signaling overhead of the connection, and the delay of the downlink data transmission can be shortened.
  • the third embodiment of the present invention provides a UE, where the UE includes a sending module, and the sending module is configured to send, when the UE has uplink data transmission, a first uplink packet that includes a user packet to the control plane network element, so that the control is performed. Determining, by the network element, the data plane processing network element according to the first uplink packet, and forwarding the user packet to the data plane processing network element for further processing, where the first uplink packet further includes The first identifier or the second identifier of the UE.
  • the sending module is further configured to: send an attach or a registration message to the control plane network element, where the attach or register message includes the capability indication information of the UE and the first identifier of the UE, so that the The control plane network element determines whether to allow the UE to send the first uplink packet including the user packet to the control plane network element according to the UE capability indication information and/or the subscription information of the UE, and perform corresponding service. deal with.
  • the first uplink packet further includes the service indication information of the user packet, so that the control plane network element is configured according to the service indication information in the first uplink packet, and/or the The subscription information of the UE determines the data plane processing network element for the UE.
  • the first uplink packet further includes security information, so that the control plane network element performs access control, security encryption, decryption, or verification processing on the first uplink packet based on the security information.
  • control plane network element of this embodiment includes: a receiving module 11, a first determining module 12, and a sending module 13.
  • the receiving module 11 is configured to receive the first uplink packet sent by the UE, where the first uplink packet includes a user packet, and the first identifier of the UE or the second identifier of the UE.
  • the first determining module 12 is configured to determine, according to the first uplink packet, a data plane processing network element of the UE;
  • the sending module 13 is configured to send, to the data plane processing network element, a second uplink packet that includes the user packet, so that the data plane processing network element sends the user packet to the communication peer end, where
  • the second uplink packet further includes a first identifier of the UE or a second identifier of the UE.
  • the receiving module 11 is further configured to: before receiving the first uplink packet that is sent by the UE, receive an attach or registration message sent by the UE, where the attach or registration message includes the capability indication information of the UE. And a first identifier of the UE.
  • the control plane network element further includes a second determining module, configured to determine, according to the UE capability indication information and/or the subscription information of the UE, whether to allow the UE to the control plane network element The sending includes the first uplink packet and performing corresponding service processing.
  • the first uplink packet further includes the service indication information of the user packet
  • the first determining module 12 is specifically configured to: according to the service indication information of the user packet, and/or Or the subscription information of the UE, determining a data plane processing network element of the UE.
  • the control plane network element further includes a third determining module, where The third determining module is configured to determine a second identifier of the UE according to the first uplink packet.
  • the third determining module is specifically configured to: according to the service indication information of the user packet and/or the subscription information of the UE Determining a second identity of the UE.
  • the control plane network element When the first uplink packet and the second uplink packet both include the first identifier of the UE, the control plane network element further includes an indication module, where the indication module is used to indicate data plane processing of the UE. The network element determines a second identity of the UE for the UE.
  • the first uplink packet further includes security information.
  • the control plane network element further includes an access control module, where the access control module is configured to perform, according to the security information, the first uplink.
  • the message performs access control, security encryption and decryption or verification processing.
  • the sending module is further configured to: when the second uplink packet is sent to the data plane processing network element, carry the context information of the UE in the second uplink packet, and send the The data plane processing network element; or, before sending the second uplink message to the data plane processing network element, sending the context information of the UE to the data plane processing network element by using a signaling manner.
  • the context information of the UE includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and a communication peer address.
  • FIG. 5 is a schematic structural diagram of a data plane processing network element according to Embodiment 5 of the present invention.
  • the data plane processing network element provided in this embodiment includes: a receiving module 21, and a determining module. 22. Encapsulation module 23 and transmission module 24.
  • the receiving module 21 is configured to receive the second uplink packet sent by the control plane network element and the context information of the user equipment UE, where the second uplink packet includes the user packet of the UE, and the UE a first identifier or a second identifier of the UE;
  • the determining module 22 is configured to determine a communication peer according to the second uplink packet and/or the context information of the UE;
  • the encapsulating module 23 is configured to encapsulate the user packet into a third uplink packet, where the third uplink packet includes the user packet and a second identifier of the UE;
  • the sending module 24 is configured to send the third uplink packet to the communication peer end.
  • the second uplink packet further includes the service indication information of the user packet, where the determining module 22 is specifically configured to: according to the service indication information of the user packet, and/or the UE The communication peer address information in the context information determines the communication peer.
  • the encapsulating module 23 is configured to: obtain a second identifier of the UE from the second uplink packet, and encapsulate the second identifier of the UE and the user packet in the first Three uplink messages. Or, when the control plane network element indicates that the data plane processing network element determines the second identifier of the UE for the UE, according to the first identifier of the UE or the second uplink packet The service indication information of the user packet is used to determine the second identifier of the UE, and the second identifier of the UE and the user packet are encapsulated in the third uplink packet.
  • control plane network element instructs the data plane processing network element to determine the second identifier of the UE for the UE, determining the second identifier of the UE according to the locally saved context information of the UE. Encapsulating the second identifier of the UE and the user packet in the third uplink packet.
  • the UE, the control plane network element, and the data plane processing network element provided in the foregoing Embodiment 3 and Embodiment 4 are used to perform the method in the foregoing Embodiment 1.
  • the specific implementation manner and technical effects are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a data plane processing network element according to Embodiment 6 of the present invention.
  • the data plane processing network element provided in this embodiment includes: a receiving module 31, a determining module 32, and a generating module 33. And sending module 34.
  • the receiving module 31 is configured to receive a first downlink packet, where the first downlink packet includes a user. a second identifier of the message and the user equipment UE;
  • a determining module 32 configured to determine, according to the second identifier of the UE, a control plane network element of the UE;
  • the generating module 33 is configured to generate a second downlink packet according to the first downlink packet, where the second downlink packet includes the user packet, and the first identifier of the UE or the UE Second identifier
  • the sending module 34 is configured to send a second downlink packet to the control plane network element.
  • the second downlink packet includes service indication information of the user packet.
  • the determining module 32 is specifically configured to: determine, according to the second identifier of the UE, a locally saved correspondence between a control plane network element of the UE and a second identifier of the UE, Control plane network element.
  • the determining module 32 is specifically configured to: send, by using the sending module 34, a first request message to a user data server, where the first request message includes a second identifier of the UE, where the first request is The message is used to request the identifier of the control plane network element of the UE, and the first response message sent by the user data server is received by the receiving module 31, where the first response message includes the control plane network element.
  • the sending module 34 sends, by using the sending module 34, a first request message to a user data server, where the first request message includes a second identifier of the UE, where the first request is The message is used to request the identifier of the control plane network element of the UE, and the first response message sent by the user data server is received by the receiving module 31, where the first response message includes the control plane network element.
  • the sending module 34 is specifically configured to: send the second downlink packet to the control plane network element according to the state of the UE.
  • FIG. 7 is a schematic structural diagram of a control plane network element according to Embodiment 7 of the present invention.
  • the control plane network element provided in this embodiment includes: a receiving module 41, a determining module 42, and a first generating module 43. And sending module 44.
  • the receiving module 41 is configured to receive a second downlink packet that is sent by the data plane processing network element, where the second downlink packet includes the user packet, and the first identifier of the UE or the second identifier of the UE ;
  • the determining module 42 is configured to determine, according to the first identifier of the UE or the second identifier of the UE, and the locally saved context information of the UE, the access device of the UE;
  • the first generating module 43 is configured to generate a third downlink packet according to the second downlink packet, where the third downlink packet includes the user packet and a first identifier of the UE;
  • the sending module 44 is configured to send the first downlink packet to an access device of the UE.
  • the receiving module 41 is further configured to: receive an attach or a registration message sent by the UE, where the attach or register message includes the capability indication information of the UE and the first identifier of the UE, and the control plane network And determining, according to the UE capability indication information and/or the subscription information of the UE, whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and perform corresponding service. deal with.
  • the control plane network element further includes a second generation module, and the second generation module is configured to generate and save context information of the UE according to the attach or registration message.
  • the sending module 44 is specifically configured to: send the first downlink packet to the access device of the UE according to the state information of the UE.
  • the second downlink packet and the third downlink packet further include service indication information of the user packet.
  • FIG. 8 is a schematic structural diagram of a UE according to Embodiment 8 of the present invention.
  • the UE provided in this embodiment includes: a receiving module 51 and a sending module 52.
  • the receiving module 51 is configured to receive a third downlink packet that is sent by the control plane network element, where the third downlink packet includes a user packet and a first identifier of the UE.
  • the sending module 52 is configured to receive, by the control plane network element, an attach or registration message sent by the UE, where the attach or registration message includes capability indication information of the UE and a first identifier of the UE, and a control plane
  • the network element determines, according to the UE capability indication information and/or the subscription information of the UE, whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding service processing.
  • the third downlink packet further includes service indication information of the user packet.
  • the data plane processing network element, the control plane network element, and the UE provided in the foregoing Embodiment 6, the seventh embodiment, and the eighth embodiment are used to perform the method in the foregoing Embodiment 2.
  • the specific implementation manner and the technical effects are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of a UE according to Embodiment 9 of the present invention.
  • the UE 600 provided in this embodiment includes: a processor 61, a memory 62, a communication interface 63, and a system bus. 64.
  • the memory 62 and the communication interface 63 are connected and complete communication with each other through the system bus 64, and the memory 62 is configured to store a computer execution instruction, and the communication interface 63 is used to Communicating with other devices, the processor 61 is configured to execute the computer to execute instructions, and perform the method as follows:
  • the first uplink packet that includes the user packet is sent to the control plane network element, so that the control plane network element determines the data plane processing network element according to the first uplink packet, and
  • the user packet is forwarded to the data plane processing network element for further processing, and the first uplink packet further includes the first identifier or the second identifier of the UE.
  • the processor 61 is further configured to: send an attach or registration message to the control plane network element, where the attach or registration message includes the UE The capability indication information and the first identifier of the UE, so that the control plane network element determines whether to allow the UE to send the control plane network element according to the UE capability indication information and/or the subscription information of the UE.
  • the first uplink packet further includes the service indication information of the user packet, so that the control plane network element is configured according to the service indication information in the first uplink packet, and/or the The subscription information of the UE determines the data plane processing network element for the UE.
  • the first identifier of the UE is an identifier of the UE or a temporary identifier allocated by the control plane network element.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the service indication information of the user packet includes one or more of a service type, a service identifier, and service server addressing information.
  • the first uplink packet further includes security information, so that the control plane network element performs access control, security encryption, decryption, or verification processing on the first uplink packet based on the security information.
  • the control plane network element 700 provided in this embodiment includes: a processor 71, a memory 72, and a communication.
  • An interface 73 and a system bus 74, the memory 72 and the communication interface 73 are connected to and communicate with each other through the system bus 74, and the memory 72 is configured to store a computer execution instruction,
  • the communication interface 73 is for communicating with other devices, and the processor 71 is configured to execute the computer to execute instructions to perform the method as follows:
  • a first uplink packet receives, by the UE, a first uplink packet, where the first uplink packet includes a user packet, and the first identifier of the UE or the second identifier of the UE;
  • the second uplink packet that includes the user packet to the data plane processing network element, so that the data plane processing network element sends the user packet to the communication peer end, where the second uplink packet is sent
  • the first identifier of the UE or the second identifier of the UE is also included.
  • the processor 71 is further configured to: receive an attach or registration message sent by the UE, where the attach or registration message includes Determining, according to the UE capability indication information and/or the subscription information of the UE, whether to allow the UE to send the first uplink to the control plane network element, according to the capability indication information of the UE and the subscription information of the UE. The message is processed and the corresponding business is processed.
  • the first uplink packet further includes the service indication information of the user packet, where the processor 71 is specifically configured to: according to the service indication information of the user packet, and/or the UE The subscription information determines the data plane processing network element of the UE.
  • the processor 71 is further configured to: according to the first The uplink packet determines a second identity of the UE.
  • the processor 71 is further configured to: indicate that the data plane processing network element of the UE is the UE Determining a second identity of the UE.
  • the first uplink packet further includes the service indication information of the user packet, where the processor 71 is specifically configured to: according to the service indication information of the user packet, and/or the UE The subscription information determines a second identity of the UE.
  • the first identifier of the UE is an identifier of the UE or a temporary identifier allocated by the control plane network element.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the service indication information of the user packet includes one or more of a service type, a service identifier, and service server addressing information.
  • the first uplink packet further includes security information
  • the processor 71 is further configured to perform access control, security encryption, decryption, or verification processing on the first uplink packet according to the security information.
  • control plane network element is one or more of a mobility management entity or a session management entity.
  • the processor 71 is further configured to: when the second uplink packet is sent to the data plane processing network element, carry the context information of the UE in the second uplink packet, and send the information to the second uplink packet.
  • the data plane processing network element is configured; or the context information of the UE is sent to the data plane processing network element by using a signaling manner before the second uplink packet is sent to the data plane processing network element.
  • the context information of the UE includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and a communication peer address.
  • the UE, the control plane network element, and the data plane processing network element provided in the foregoing Embodiment 9, the tenth embodiment, and the eleventh embodiment may be used to perform the method in the foregoing Embodiment 1.
  • the specific implementation manner and the technical effect are similar, and details are not described herein again. .
  • FIG. 11 is a schematic structural diagram of a data plane processing network element according to Embodiment 11 of the present invention.
  • the data plane processing network element 800 provided in this embodiment includes: a processor 81, a memory 82, a communication interface 83, and A system bus 84, the memory 82 and the communication interface 83 are connected to and communicate with each other via the system bus 84 for storing computer execution instructions, the communication interface 83
  • the processor 81 is configured to execute the computer to execute instructions, and perform the method as follows:
  • the second uplink packet sent by the control plane network element and the context information of the user equipment UE, where the second uplink packet includes the user packet of the UE, and the first identifier of the UE or the The second identifier of the UE;
  • the user packet is encapsulated into a third uplink packet, and the third uplink packet is sent to the communication peer end, where the third uplink packet includes the user packet and the UE The second logo.
  • the data connection between the access device of the UE and the data plane processing network element does not exist.
  • the uplink information of the UE is carried in the second uplink packet, or the uplink information of the UE is sent by the control plane network element to the data plane processing network by using signaling yuan.
  • the UE context information includes one or more of a second identifier of the UE, a first identifier of the UE, identifier information of the control plane network element, and the communication peer address.
  • the second uplink packet further includes the service indication information of the user packet, where the processor 81 is specifically configured to: according to the service indication information of the user packet, and/or the UE The communication peer address information in the context information determines the communication peer.
  • the processor 81 encapsulates the user packet into a third uplink packet, specifically:
  • control plane network element indicates that the data plane processing network element determines the second identifier of the UE for the UE, according to the first identifier of the UE or the second uplink packet
  • the service indication information of the user packet is used to determine the second identifier of the UE, and the second identifier of the UE and the user packet are encapsulated in the third uplink packet.
  • control plane network element instructs the data plane processing network element to determine the second identifier of the UE for the UE, determining the second identifier of the UE according to the locally saved context information of the UE. Encapsulating the second identifier of the UE and the user packet in the third uplink packet.
  • the embodiment of the present invention provides a data plane processing network element.
  • the structure of the data plane processing network element in this embodiment is the same as that of the data plane processing network element shown in FIG. 11.
  • the processor 81 is configured to:
  • the data connection between the access device of the UE and the data plane processing network element does not exist.
  • the second identifier of the UE is a network interconnection protocol IP address, a UE external identifier, or a phone number.
  • the second downlink packet further includes service indication information of the user packet.
  • the processor 81 determines, according to the second identifier of the UE, a control plane network element of the UE, specifically, according to the second identifier of the UE, and a locally saved control plane of the UE.
  • a control plane network element of the UE is determined by a correspondence between the network element and the second identifier of the UE.
  • the processor 81 determines, according to the second identifier of the UE, the control plane network element of the UE, specifically: sending a first request message to the user data server, where the first request message includes a second identifier of the UE, where the first request message is used to request to obtain an identifier of a control plane network element of the UE, and receive a first response message sent by the user data server, where the first response message includes The identifier of the control plane network element.
  • the processor 81 sends the second downlink packet to the control plane network element, where the second downlink packet is sent to the control plane network element according to the state of the UE.
  • the thirteenth embodiment of the present invention provides a control plane network element.
  • the structure of the control plane network element in this embodiment is the same as that of the control plane network element shown in FIG. 10. Referring to FIG. 10, in the embodiment, the processing is performed.
  • the device 71 is used to:
  • the processor 71 is further configured to: receive, according to the first identifier of the UE or the second identifier of the UE, and the context information of the UE, before determining the access device of the UE An attach or a registration message sent by the UE, where the attach or the registration message includes the capability indication information of the UE and the first identifier of the UE, and is determined according to the UE capability indication information and/or the subscription information of the UE. Whether the UE is allowed to send the first uplink packet that includes the user packet to the control plane network element, and performs corresponding service processing; and generates and saves context information of the UE according to the attach or registration message. .
  • the processor 71 sends the third downlink packet to the access device of the UE, where the third device sends the third to the access device of the UE according to the state information of the UE. Downstream message.
  • the second downlink packet and the third downlink packet further include service indication information of the user packet.
  • the embodiment of the present invention provides a UE.
  • the structure of the UE in this embodiment is the same as that of the UE shown in FIG. 9.
  • the processor 61 is configured to:
  • the control plane And receiving, by the control plane, the third downlink packet, where the third downlink packet includes the user packet and the first identifier of the UE, where the access device of the UE and the control plane network element There is no signaling connection between the two, and there is no data connection between the access device of the UE and the data plane processing network element.
  • the processor 61 Before receiving the third downlink packet sent by the control plane network element, the processor 61 is further configured to: receive, by the control plane network element, an attach or registration message sent by the UE, where the attach or registration message includes The capability indication information of the UE and the first identifier of the UE, the control plane network element determines, according to the UE capability indication information and/or the subscription information of the UE, whether to allow the UE to send the user to the control plane network element. The first uplink packet of the packet and the corresponding service processing.
  • the third downlink packet further includes service indication information of the user packet.
  • the data plane processing network element, the control plane network element, and the UE provided in the foregoing Embodiment 12, Embodiment 13, and Embodiment 14 can be used to perform the method in the foregoing Embodiment 2.
  • the specific implementation manner and the technical effect are similar. Let me repeat.

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Abstract

本发明实施例提供一种上行、下行数据传输方法和设备,UE支持无连接数据传输,UE的接入设备与控制面网元之间不存在信令连接,与数据面处理网元之间不存在数据连接,后续的上行数据报文先通过控制面网元进行传递,并触发数据面处理网元的选择和上下文传递。由于控制面网元不会为UE建立信令连接和数据连接,从而节省了建立信令连接和数据连接的信令开销和上下文存储开销,提供了一种高效率的数据传输方式。

Description

上行、下行数据传输方法和装置 技术领域
本发明实施例涉及通信技术,尤其涉及一种上行、下行数据传输方法和装置。
背景技术
对于机器与机器(Machine to Machine,简称M2M)领域中应用广泛的低功耗广域网络(Low Power Wide Area,简称LPWA)应用,目前都面临广覆盖、海量终端接入、低连接成本、低功耗的挑战,与此同时,LPWA的业务模型大多属于小数据包类型,小数据包类型业务具有发包频次低、每次发包字节数少的特点。
目前能够提供广覆盖无线接入的技术主要是无线蜂窝网技术,其核心网采用的演进分组核心网(Evolved Packet Core,简称EPC),EPC采用的是面向连接的技术,所有数据传输都需要建立缺省承载,对于服务质量QoS要求高的数据,还需要在缺省承载的基础上建立专用承载才能发送数据包,同时需要在各网元中保存连接的上下文信息。海量终端建立连接所需要的信令对网络带来较大的冲击;海量终端带来的网络连接和上下文存储开销,对网络资源占用较大,称为容量瓶颈;对于小数据包传输来说,通过信令连接和上下文信息也使得连接效率很低,每连接的成本较高,较大影响了网络的接入容量。
发明内容
本发明实施例提供一种上行、下行数据传输方法和装置,能够节省建立信令连接和数据连接的信令开销,并且能够缩短数据传输的时延。
本发明第一方面提供一种上行数据传输方法,包括:
当用户设备UE有上行数据传输时,所述UE向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行 下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
进一步的,所述UE向控制面网元发送第一上行报文之前,还包括:
所述UE向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
可选的,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
可选的,所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
本发明第二方面提供一种上行数据传输方法,包括:
控制面网元接收UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元;
所述控制面网元向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
进一步的,所述控制面网元接收UE发送的包含的第一上行报文之前,还包括:
所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识;
所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元,具体为:所述控制面网元根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的数据面处理网元。
可选的,当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,所述方法还包括:所述控制面网元根据所述第一上行报文确定所述UE的第二标识。
可选的,当所述第一上行报文和所述第二上行报文都包括所述UE的第一标识时,所述方法还包括:所述控制面网元指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,所述控制面网元根据所述第一上行报文确定所述UE的第二标识,具体为:所述控制面网元根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
可选的,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
可选的,所述第一上行报文中还包括安全信息,相应的,所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元之前,还包括:所述控制面网元根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
可选的,所述控制面网元为移动管理实体或者会话管理实体中的一个或多个。
可选的,所述控制面网元在向所述数据面处理网元发送所述第二上行报文时,将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,所述控制面网元在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。
可选的,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
本发明第三方面提供一种上行数据传输方法,包括:
数据面处理网元接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
所述数据面处理网元根据第二上行报文和/或所述UE的上下文信息确定通信对端;
所述数据面处理网元将所述用户报文封装为第三上行报文,并将所述第三上行报文发送给所述通信对端,所述第三上行报文中包括所述用户报文和所述UE的第二标识。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连 接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述UE的上行文信息携带在所述第二上行报文中;或者,所述UE的上行文信息由所述控制面网元通过信令方式发送给所述数据面处理网元。
可选的,所述UE上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和所述通信对端地址中的一个或多个。
可选的,所述第二上行报文中还包括所述用户报文的业务指示信息,所述数据面处理网元根据第二上行报文和/或所述UE的上下文信息确定通信对端,具体为:所述数据面处理网元根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
可选的,所述数据面处理网元将所述用户报文封装为第三上行报文,具体为:所述数据面处理网元从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,所述数据面处理网元根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,所述数据面处理网元根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
本发明第四方面提供一种下行数据传输方法,包括:
数据面处理网元接收第一下行报文,所述第一下行报文中包括用户报文和用户设备UE的第二标识;
所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制 面网元;
所述数据处理网元根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
所述数据面处理网元向所述控制面网元发送第二下行报文。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制面网元,具体为:所述数据面处理网元根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
可选的,所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制面网元,具体为:所述数据面处理网元向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所述第一请求消息用于请求获取所述UE的控制面网元的标识;所述数据面处理网元接收所述用户数据服务器发送的第一响应消息,所述第一响应消息中包括所述控制面网元的标识。
可选的,所述数据面处理网元向所述控制面网元发送所述第二下行报文,具体为:所述数据面处理网元根据所述UE的状态向所述控制面网元发送所述第二下行报文。
本发明第五方面提供一种下行数据传输方法,包括:
控制面网元接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
所述控制面网元根据所述UE的第一标识或所述UE的第二标识,以 及本地保存的所述UE的上下文信息确定所述UE的接入设备;
所述控制面网元根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
所述控制面网元将所述第三下行报文发送给所述UE的接入设备。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
可选的,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
可选的,所述控制面网元根据所述UE的第一标识或所述UE的第二标识,以及所述UE的上下文信息确定所述UE的接入设备之前,还包括:
所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理;
所述控制面网元根据所述附着或注册消息生成并保存所述UE的上下文信息。
可选的,所述控制面网元将所述第三下行报文发送给所述UE的接入设备,具体为:所述控制面网元根据所述UE的状态信息向所述UE的接入设备发送所述第三下行报文。
本发明第六方面提供一种下行数据传输方法,包括:
UE接收控制面网元发送的第三下行报文,所述第三下行报文包括用户报文和所述UE的第一标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通 过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述UE接收控制面网元发送的第三下行报文之前,还包括:所述UE向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第三下行报文中还包括所述用户报文的业务指示信息。
本发明第七方面提供一种UE,包括:
发送模块,用于当UE有上行数据传输时,向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述信令连接的上下文。
进一步的,所述发送模块还用于:向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
可选的,所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
本发明第八方面提供一种控制面网元,包括:
接收模块,用于接收用户设备UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
第一确定模块,用于根据所述第一上行报文确定所述UE的数据面处理网元;
发送模块,用于向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
可选的,所述接收模块还用于:接收UE发送的包含的第一上行报文之前,接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识。相应的,所述控制面网元还包括第二确定模块,第二确定模块用于根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,相应的,所述第一确定模块具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的数据面处理网元。
可选的,当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,所述控制面网元还包括第三确定模块,所述第三确定模块用于根据所述第一上行报文确定所述UE的第二标识。
可选的,当所述第一上行报文和所述第二上行报文都包括所述UE的 第一标识时,所述控制面网元还包括指示模块,所述指示模块用于指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,相应的,所述第三确定模块具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
可选的,所述第一上行报文中还包括安全信息,相应的,所述控制面网元还包括接入控制模块,所述接入控制模块用于根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
可选的,所述发送模块还用于:在向所述数据面处理网元发送所述第二上行报文时,将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。
可选的,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
本发明第九方面提供一种数据面处理网元,包括:
接收模块,用于接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
确定模块,用于根据第二上行报文和/或所述UE的上下文信息确定通信对端;
封装模块,用于将所述用户报文封装为第三上行报文,所述第三上行报文中包括所述用户报文和所述UE的第二标识;
发送模块,用于将所述第三上行报文发送给所述通信对端。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述第二上行报文中还包括所述用户报文的业务指示信息, 相应的,所述确定模块具体用于:根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
可选的,所述封装模块具体用于:从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
本发明第十方面提供一种数据面处理网元,包括:
接收模块,用于接收第一下行报文,所述第一下行报文中包括用户报文和用户设备UE的第二标识;
确定模块,用于根据所述UE的第二标识,确定所述UE的控制面网元;
生成模块,用于根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
发送模块,用于向所述控制面网元发送第二下行报文。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述第二下行报文中还包括所述用户报文的业务指示信息。
可选的,所述确定模块具体用于:根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
可选的,所述确定模块具体用于:通过所述发送模块向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所 述第一请求消息用于请求获取所述UE的控制面网元的标识;通过所述接收模块接收所述用户数据服务器发送的第一响应消息,所述第一响应消息中包括所述控制面网元的标识。
可选的,所述发送模块具体用于:根据所述UE的状态向所述控制面网元发送所述第二下行报文。
本发明第十一方面提供一种控制面网元,包括:
接收模块,用于接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
确定模块,用于根据所述UE的第一标识或所述UE的第二标识,以及本地保存的所述UE的上下文信息确定所述UE的接入设备;
第一生成模块,用于根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
发送模块,用于将所述第一下行报文发送给所述UE的接入设备。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
可选的,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
可选的,所述接收模块还用于:接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理;相应的,所述控制面网元还包括第二生成模块,所述第二生成模块用于根据所述附着或注册消息生成并保存所述UE的上下文信息。
可选的,所述发送模块具体用于:根据所述UE的状态信息向所述UE的接入设备发送所述第三下行报文。
本发明第十二方面提供一种UE,包括:
接收模块,用于接收控制面网元发送的第三下行报文,所述第三下行 报文包括用户报文和所述UE的第一标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
可选的,所述UE还包括:
发送模块,用于向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
本发明第十三方面提供一种UE,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第一方面提供的方法。
本发明第十四方面提供一种控制面网元,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第二方面提供的方法。
本发明第十五方面提供一种数据面处理网元,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第三方面提供的方法。
本发明第十六方面提供一种数据面处理网元,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第四方面提供的方法。
本发明第十七方面提供一种控制面网元,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第五方面提供的方法。
本发明第十八方面提供一种UE,包括:处理器、存储器、通信接口和系统总线,所述存储器和所述通信接口通过所述系统总线和所述处理器连接并完成相互间的通信,所述存储器用于存储计算机执行指令,所述通信接口用于和其他设备进行通信,所述处理器用于运行所述计算机执行指令,执行本发明第六方面提供的方法。
本发明实施例提供的上行、下行数据传输方法和设备,UE支持无连接数据传输,在UE附着或注册过程中,控制面网元不会为UE建立缺省承载,UE的接入设备与控制面网元之间不存在信令连接和数据连接,在后续上行数据传输过程中,采用NAS消息传输上行数据。由于控制面网元不会为UE建立信令连接和数据连接,从而节省了建立信令连接和数据连接的信令开销,并且能够缩短上行数据传输的时延。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本发明适用的网络架构的示意图;
图2为本发明实施例一提供的上行数据传输方法的信令流程图;
图3为本发明实施例二提供的下行数据传输方法的信令流程图;
图4为本发明实施例四提供的一种控制面网元的结构示意图;
图5为本发明实施例五提供的一种数据面处理网元的结构示意图;
图6为本发明实施例六提供的一种数据面处理网元的结构示意图;
图7为本发明实施例七提供的一种控制面网元的结构示意图;
图8为本发明实施例八提供的UE的结构示意图;
图9为本发明实施例九提供的UE的结构示意图;
图10为本发明实施例十提供的控制面网元的结构示意图;
图11为本发明实施例十一提供的数据面处理网元的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
图1为本发明适用的网络架构的示意图,如图1所示,该网络架构包括:UE、接入设备、控制面网元、数据面处理网元和应用服务器(App Server),可选的,还可以包括归属用户服务器(Home Subscriber Server,简称HSS)。
其中,UE可以是无线终端,无线终端可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其它处理设备。无线终端可以经无线接入网(Radio Access Network,RAN)与至少一个核心网进行通信。无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和带有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语音和/或数据。无线终端也可以称为用户单元(Subscriber Unit)、用户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile Station)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端 (User Terminal)或用户代理(User Agent),在此不作限定。
本发明实施例中涉及的用户设备本发明实施例中涉及的接入设备可以是全球移动通讯(Global System of Mobile communication,简称GSM)系统或码分多址(Code Division Multiple Access,简称CDMA)系统中的基站(Base Transceiver Station,简称BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,简称WCDMA)系统中的基站(NodeB,简称NB),还可以是长期演进(Long Term Evolution,简称LTE)系统中的演进型基站(evolved NodeB,简称eNB)、无线保真(WIreless-Fidelity,简称WIFI)系统中的接入点(access point,简称AP)或者中继站,也可以是5G系统中的基站等,在此不作限定。
控制面网元可以LTE系统中的移动管理实体(Mobility Management Entity,简称MME)或5G系统中的控制面网元,或者其他系统中具有类似功能的设备。控制面网元主要提供终端的附着/注册、鉴权、加密、接入控制、终端管理、移动性管理、数据报文路由和转发、策略控制、计费等功能。如果控制面的移动性管理部分、会话管理部分分为两个网元,则都属于这里的控制面网元。
数据面处理网元可以是分组数据网络网关(Packet Data Network Gateway,简称PGW)或业务代理(Traffic Proxy),数据面处理网元作为数据面的统一出口,提供数据报文路由转发、策略计费、协议封装/转换、流量缓存等功能。
应用服务器是指提供业务的服务器。
基于上述网络架构,本发明实施例一提供一种上行数据传输方法,图2为本发明实施例一提供的上行数据传输方法的信令流程图,如图2所示,本实施例提供的方法可以包括以下步骤:
步骤101、UE向接入设备发起随机接入流程。
UE通过随机接入信道(Random Access Channel,简称RACH)接入接入设备。需要说明的是,图2中虽然只用了一个步骤表示随机接入过程,但并不表示随机接入过程只包括一个步骤,随机接入过程与现有技术相同,本实施例不再详细说明。
步骤102、UE向接入设备发送附着或注册消息。
步骤103、接入设备将附着或注册消息发送给控制面网元。
该附着(Attach)消息或注册消息中包括UE的能力指示信息和UE的第一标识,该能力指示信息用于指示UE支持无连接数据传输,该连接包括信令连接和数据连接,该附着或注册消息用于请求为UE建立上下文信息。另外,和现有技术不同的是,该附着或注册消息中不包括EPS会话管理(EPS session Management,简称ESM)Message相关网元,ESM Message相关网元用于触发缺省承载建立。
步骤104、控制面网元与HSS之间进行安全流程(security procedure)。
步骤105、控制面网元与UE之间进行认证流程(authentication procedure)。
需要说明的是,步骤104和105是同时执行的。控制面网元接收UE的接入设备发送的附着或注册消息,由于该附着或这注册消息中包括的UE的能力指示信息指示UE支持无连接数据传输,且不携带ESM Message相关网元,因此控制面网元根据附着或注册消息不会发起缺省承载建立流程,只是进行了安全认证流程。不发起缺省承载建立流程,即S1接口不发起S1用户面接口(即S1_U接口)的建立,空口不发起数据无线承载(Data Radio Beare,简称DRB)的建立,S5/S8接口不发起用户面的GPRS隧道建立协议(GPRS TunnellingProtocol-User,简称GTP-U)隧道的建立。
步骤106、控制面网元根据UE的能力指示和/或签约信息决定UE是否允许UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
控制面网元决定UE是否允许UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理,即允许UE进行无连接的数据传输。可选的,在本步骤中,控制面网元还可以为UE分配IP地址,并将UE的IP地址发送给数据面处理网元,具体的,控制面网元可以通过专用信令或上行报文发送给数据面处理网元。当然,控制面网元也可以不为UE分配IP地址,而是指示数据面处理网元为UE分配IP地址。如果控制面网元为UE分配了IP地址,则将IP地址保存在UE的上下文信息中。
步骤107、控制面网元向接入设备发送附着或注册接受消息(attach accept)。
一种实现方式中,如果控制面网元允许UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理,则可以向UE发送允许指示信息,通过该允许指示信息通知UE控制面网元允许UE发送包含用户报文的第一上行报文,并进行相应的业务处理。该允许指示信息可以携带在附着或注册接受消息中,也可以通过专用信令发送。如果控制面网元不允许UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理,则向UE发送拒绝指示信息,通过该拒绝指示信息通知UE控制面网元不允许UE发送包含用户报文的第一上行报文,并进行相应的业务处理。该决绝指示信息可以携带在附着或注册接受消息中,也可以通过专用信令发送。
另一种实现方式中,如果控制面网元允许UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理,则不会向UE发送允许指示信息,如果控制面网元不允许UE向控制面网元发送包含用户报文的第一上行报文,则会向UE发送拒绝指示信息。UE如果在一定时间内没有接收到拒绝指示信息,则默认控制面网元允许UE向控制面网元发送包含用户报文的第一上行报文。
步骤108、接入设备向UE发送附着或注册接受消息。
步骤109、UE向接入设备发送附着或注册完成消息(attach complete)。
步骤110、接入设备向控制面网元发送附着或注册完成消息。
上述步骤103至步骤110是本发明实施例中UE的完整附着或注册流程,不同于现有技术中,UE的附着或注册过程中不会建立缺省承载,因此,本实施例的方案中UE的接入设备与控制面网元之间不存在信令连接,UE的接入设备与数据面处理网元之间不存在数据连接,其中,信令连接是指UE的接入设备与控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且UE的接入设备与控制面网元中保存有所述信令连接的上下文。数据连接是指UE的接入设备与数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且UE的接入设备与数据面处理网元中保存有数据连接的上下文。
控制面网元在UE附着或注册流程中为UE建立上下文信息。UE的上下文信息包括但不限于:UE的第一标识、安全信息、签约信息、接入设 备信息、状态信息等。其中,UE的标识、接入设备信息、状态信息可以由控制面网元直接生成,签约信息和安全信息可能需要通过其它设备获取,例如,控制面网元从HSS获取签约信息。UE的第一标识为UE的身份标识或控制面网元分配的临时标识,例如为国际移动用户识别码(International Mobile Subscriber Identification Number,简称IMSI)、全球唯一UE临时标识(Globally Unique Temporary UE Identity,简称GUTI)、临时移动用户身份标识(Temporary Mobile Subscriber Identity,简称TMSI)。
可选的,控制面网元还可以将UE的部分上下文信息发送给数据面处理网元。一种实现方式中,控制面网元可以在UE附着或注册过程中通过专用信令将UE的上下文信息发送给数据面处理网元;另一种实现方式中,也可以在后续数据传输过程中,控制面网元将UE的上下文信息携带在上行报文中发送给数据面处理网元,这里上行报文都是指数据报文。
步骤111、UE向控制面网元发送第一上行报文。
当UE有上行数据传输时,UE向控制面网元发送第一上行报文,UE先将第一上行报文发给接入设备,接入设备再转发给控制面网元。本实施例中,第一上行报文中包括用户报文,UE的第一标识或UE的第二标识,其中,UE的第二标识为IP地址、UE外部标识或电话号码。由于UE的接入设备与控制面网元之间不存在信令连接和数据连接,UE的接入设备与控制面网元上也不会保存连接的上下文,控制面网元无法通过连接识别报文来自哪个UE,因此,UE发送的上行报文中都要包括UE的第一标识或第二标识,以使控制面网元根据UE的第一标识或第二标识识别上行报文来自哪个UE。可选的,第一上行报文中还包括用户报文的业务指示信息和/或安全信息。其中,用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种,业务指示信息用于控制面网元为UE确定数据面处理网元。安全信息用于控制面网元对第一上行报文执行接入控制、安全加解密或验证处理。
本实施例中,第一上行报文为NAS消息,由于在附着过程中没有为UE建立缺省承载,后续当UE有上行数据发送时,也不会采用服务请求(Service request)触发承载建立流程,而是直接采用NAS消息封装用户 报文进行传递,NAS消息例如是控制面数据服务请求(Control Plane Service Request)消息或其他NAS消息。
步骤112、控制面网元根据第一上行报文确定UE的数据面处理网元。
控制面网元接收第一上行报文,第一上行报文中包括用户报文,以及UE的第一标识或UE的第二标识,可选的,第一上行报文中还包括上行数据的业务指示信息。当第一上行报文中包括用户报文的业务指示信息时,控制面网元用户报文的业务指示信息和/或UE的签约信息,确定UE的数据面处理网元。当第一上行报文中不包括该业务指示信息时,控制面网元确定默认数据面处理网元为UE的数据面处理网元,其中,该默认数据网元为UE的附着或注册流程中,控制面网元根据UE的上下文信息为UE确定的。控制面网元在确定UE的数据面处理网元后,将数据面处理网元的标识保存在UE的上下文中。
可选的,第一上行报文中还包括安全信息,控制面网元根据第一上行报文确定UE的数据面处理网元之前,还包括:控制面网元根据安全信息对第一上行报文执行接入控制、安全加解密或验证处理。
步骤113、控制面网元向数据面处理网元发送第二上行报文。
控制面网元根据第一上行报文生成第二上行报文,并向数据面处理网元发送第二上行报文,以使数据面处理网元将用户报文发送给通信对端,第二上行报文中包括用户报文,以及UE第一标识或UE的第二标识。可选的,第二上行报文中还包括用户报文的业务指示信息,和/或UE的上行文信息,该UE的上下文信息包括UE的第二标识、UE的第一标识、控制面网元的标识信息和通信对端地址中的一个或多个。可选的,控制面网元在向数据面处理网元发送第二上行报文之前,也可以将UE的上下文信息通过信令方式发送给数据面处理网元。
当该UE的上行文信息中包括通信对端地址时,该通信对端是控制面网元确定的,控制面网元可以根据用户报文的业务指示信息和/或UE的上行文信息确定通信对端。控制面网元将控制面网元的标识发送给数据面处理网元的目的是:用于数据面处理网元进行下行数据的转发。
当第一上行报文中包括UE的第一标识,第二上行报文中包括UE的第二标识时,控制面网元还用于第一上行报文确定UE的第二标识。可选 的,控制面网元根据用户报文的业务指示信息和/或UE的签约信息,确定UE的第二标识。当第一上行报文和第二上行报文都包括UE的第一标识时,控制面网元可以指示UE的数据面处理网元为UE确定UE的第二标识。
需要说明的是,控制面网元和数据面处理网元之间可能存在信令连接和数据连接,也可能不存在信令连接和数据连接。
步骤114、数据面处理网元根据第二上行报文和/或UE的上下文信息确定通信对端。
一种实现方式中,第二上行报文中包括用户报文的业务指示信息,则数据面处理网元可以根据用户报文的业务指示信息和UE的上下文信息确定通信对端。另一种实现方式中,第二上行报文中不包括用户报文的业务指示信息,但UE的上行文信息中包括通信对端的地址,那么数据面处理网元根据UE的上下文信息确定通信对端,该通信对端例如是应用服务器。
步骤115、数据面处理网元将用户报文封装为第三上行报文。
该第三上行报文中包括用户报文和UE的第二标识,数据面处理网元将用户报文封装为第三上行报文,具体为:
(1)当第二上行报文中包括UE的第二标识时,数据面处理网元从第二上行报文中获取UE的第二标识,将UE的第二标识和用户报文封装在第三上行报文中。
(2)当第二上行报文中不包括UE的第二标识时,数据面处理网元可以根据控制面网元的指示确定UE的第二标识,具体的,数据面处理网元根据UE的第一标识或第二上行报文中包括的用户报文的业务指示信息,确定UE的第二标识,将UE的第二标识和用户报文封装在第三上行报文中。
(3)当第二上行报文中不包括UE的第二标识时,数据面处理网元可以根据控制面网元的指示确定UE的第二标识,具体的,数据面处理网元根据本地保存的UE的上下文信息,确定UE的第二标识,将UE的第二标识和用户报文封装在第三上行报文中。
当UE的上下文信息中包括控制面网元的标识时,数据面处理网元将控制面网元的标识和UE的第二标识的对应关系保存到UE的上下文信息 中,后续数据面处理网元可以根据该对应关系进行下行报文的转发。
本实施例中,数据面处理网元可以根据通信对端采用的协议对用户报文进行封装得到第三上行报文,具体可以包括UE的IP地址的封装、传输层协议的封装、应用层协议的封装和隧道协议的封装等,其中,传输层协议包括但不限于传输控制协议(Transfer Control Protocol,简称TCP)、用户数据报协议(User Datagram Protocol,简称UDP)和数据报传输层安全(Datagram Transport Layer Security,简称DTLS)协议等,应用层协议包括但不限于超文本传输协议(HyperText Transfer Protoco,简称HTTP)、受限制的应用协议(Constrained Application Protocol,简称CoAP)、消息队列遥测传输(Message Queuing Telemetry Transport,简称MQTT)协议、高级消息队列协议(Advanced Message Queuing Protocol,简称AMQT)协议等。
可选的,第三上行报文中还包括UE的IP地址。当第三上行报文中包括UE的IP地址时,该UE的IP地址可能是控制面网元分配并发送给数据面处理网元的,也可能是数据面处理网元分配的。一种实现方式中,控制面网元会指示数据面处理网元为UE分配IP地址,数据面处理网元根据控制面网元的指示为UE分配IP地址;另一种实现方式中,数据面处理网元在确定通信对端后,根据通信对端的情况判断是否为UE分配IP地址,如果确定为UE分配IP地址,则按照规则为UE分配IP地址。
步骤116、数据面处理网元将第三上行报文发送给通信对端。
步骤117、通信对端对第三上行报文进行处理。
通信对端接收数据面处理网元发送的第三上行报文,对上行数据进行处理。
本实施例中,UE支持无连接数据传输,在UE附着或注册过程中,控制面网元不会为UE建立缺省承载,UE的接入设备与控制面网元之间不存在信令连接,UE的接入设备与数据面处理网元之间不存在数据连接,在后续上行数据传输过程中,采用NAS消息传输用户报文。由于控制面网元不会为UE建立信令连接和数据连接,从而节省了建立信令连接和数据连接的信令开销,并且能够缩短上行数据传输的时延。
图3为本发明实施例二提供的下行数据传输方法的信令流程图,如图 3所示,本实施例提供的方法可以包括以下步骤:
步骤201、UE的附着或注册流程。
UE的附着或注册流程参照实施例一种步骤101至步骤110的相关描述,这里不再赘述。本实施例中,UE的附着或注册过程中不会建立缺省承载,因此,本实施例的方案中UE的接入设备与控制面网元之间不存在信令连接,UE的接入设备与数据面处理网元之间不存在数据连接,控制面网元在UE附着或注册流程中为UE建立上下文信息。UE的上下文信息包括但不限于:UE的标识、安全信息、签约信息、接入设备信息、状态信息等。
步骤202、通信对端向数据面处理网元发送第一下行报文。
第一下行报文中包括用户报文和UE的第二标识。
步骤203、数据面处理网元根据UE的第二标识,确定UE的控制面网元,以及根据第一下行报文生成第二下行报文。
一种实现方式中,数据面处理网元根据UE的第二标识,以及本地保存的UE的控制面网元和UE的第二标识的对应关系,确定UE的控制面网元。另一种实现方式中,数据面处理网元向用户数据服务器(例如HSS)发送第一请求消息,第一请求消息中包括UE的第二标识,第一请求消息用于请求获取UE的控制面网元的标识,HSS根据第一请求消息向业务处理网元发送第一响应消息。数据面处理网元接收HSS发送的第一响应消息,第一响应消息中包括控制面网元的标识。
然后,数据面处理网元根据第一下行报文生成第二下行报文,第二下行报文中包括用户报文,以及UE的第一标识或UE的第二标识。可选的,第二下行报文中还包括用户报文的业务指示信息。相应的,数据面处理网元对第一下行报文进行解封装,根据第一下行报文的应用层协议或传输层端口号等确定用户报文的业务指示信息。可选的,数据面处理网元还根据UE的第二标识和本地保存的UE上下文信息确定UE的第一标识,并将UE的第一标识携带在第二下行报文中,第二下行报文为NAS消息。
步骤204、数据面处理网元向控制面网元发送第二下行报文。
一种实现方式中,数据面处理网元直接将第二下行报文发送给控制面网元,另一种实现方式中,数据面处理网元根据UE的状态向控制面网元 发送第二下行报文,例如,如果UE处于休眠状态,则数据面处理网元可以缓存第二下行报文,当UE从休眠状态被唤醒后,向控制面网元发送第二下行报文。其中,UE的状态信息保存在UE的上行文信息中,具体可以由控制面网元主动发送给数据面处理网元,或者,由数据面处理网元向控制面网元请求获取UE的状态信息。
步骤205、控制面网元根据UE的第一标识或UE的第二标识,以及本地保存的UE的上下文信息确定UE的接入设备,并根据第二下行报文生成第三下行报文。
UE的上行UE的上下文信息中包括UE的接入设备信息,控制面网元根据UE的上下文信息确定UE的接入网设备,如果第二下行报文中包括UE的第二标识,那么控制面网元还需要根据UE的第二标识确定UE的第一标识。控制面网元的生成的第三下行报文中包括用户报文和UE的第一标识。可选的,第三下行报文中还包括用户报文的业务指示信息。
步骤206、控制面网元将第三下行报文发送给UE的接入设备。
一种实现方式中,控制面网元直接将第三下行报文发送给UE的接入设备,另一种实现方式中,控制面网元根据UE的状态确定是否向UE的接入设备发送第三下行报文,例如,如果UE当前处于休眠状态时,控制面网元缓存第三下行报文,当UE从休眠状态被唤醒后,再向UE的接入设备发送第三下行报文,如果UE当前处于被唤醒状态,则直接向UE的接入设备发送第三下行报文。需要说明的是,如果数据面处理网元根据UE的状态向控制面网元发送第二下行报文,那么控制面网元不需要再次根据UE的状态确定是否向UE的接入设备发送第三下行报文。
步骤207、UE的接入设备向UE发送第三下行报文。
UE的接入设备接收控制面网元发送的第三下行报文,根据第三下行报文中包括的UE的第一标识向UE发送第三下行报文。
本实施例中,UE支持无连接数据传输,在UE附着或注册过程中,控制面网元不会为UE建立缺省承载,UE的接入设备与控制面网元之间不存在信令连接,UE的接入设备与数据面处理网元之间不存在数据连接,在后续下行数据传输过程中,采用NAS消息传输上行数据。由于控制面网元不会为UE建立信令连接和数据连接,从而节省了建立信令连接和数 据连接的信令开销,并且能够缩短下行数据传输的时延。
本发明实施例三提供一种UE,该UE包括发送模块,发送模块用于当UE有上行数据传输时,向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
进一步,所述发送模块还用于:向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
可选的,所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
图4为本发明实施例四提供的一种控制面网元的结构示意图,如图4所示,本实施例的控制面网元包括:接收模块11、第一确定模块12和发送模块13。
其中,接收模块11用于接收UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
第一确定模块12,用于根据所述第一上行报文确定所述UE的数据面处理网元;
发送模块13,用于向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接。
进一步的,所述接收模块11还用于:接收UE发送的包含的第一上行报文之前,接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识。相应的,所述控制面网元还包括第二确定模块,第二确定模块用于根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,相应的,所述第一确定模块12具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的数据面处理网元。
当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,所述控制面网元还包括第三确定模块,第三确定模块用于根据所述第一上行报文确定所述UE的第二标识。当所述第一上行报文中还包括所述用户报文的业务指示信息,所述第三确定模块具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
当所述第一上行报文和所述第二上行报文都包括所述UE的第一标识时,所述控制面网元还包括指示模块,指示模块用于指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
可选的,所述第一上行报文中还包括安全信息,相应的,所述控制面网元还包括接入控制模块,接入控制模块用于根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
可选的,所述发送模块还用于:在向所述数据面处理网元发送所述第二上行报文时,将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。其中,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
图5为本发明实施例五提供的一种数据面处理网元的结构示意图,如图5所示,本实施例提供的数据面处理网元包括:接收模块21、确定模块 22、封装模块23和发送模块24。
接收模块21,用于接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
确定模块22,用于根据第二上行报文和/或所述UE的上下文信息确定通信对端;
封装模块23,用于将所述用户报文封装为第三上行报文,所述第三上行报文中包括所述用户报文和所述UE的第二标识;
发送模块24,用于将所述第三上行报文发送给所述通信对端。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
可选的,所述第二上行报文中还包括所述用户报文的业务指示信息,所述确定模块22具体用于:根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
可选的,所述封装模块23具体用于:从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
上述实施例三、实施例四、实施例五提供的UE、控制面网元和数据面处理网元,可用于执行上述实施例一的方法,具体实现方式和技术效果类似,这里不再赘述。
图6为本发明实施例六提供的一种数据面处理网元的结构示意图,如图5所示,本实施例提供的数据面处理网元包括:接收模块31、确定模块32、生成模块33和发送模块34。
接收模块31,用于接收第一下行报文,所述第一下行报文中包括用户 报文和用户设备UE的第二标识;
确定模块32,用于根据所述UE的第二标识,确定所述UE的控制面网元;
生成模块33,用于根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
发送模块34,用于向所述控制面网元发送第二下行报文。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
可选的,所述第二下行报文中包括所述用户报文的业务指示信息。
可选的,所述确定模块32具体用于:根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
可选的,所述确定模块32具体用于:通过所述发送模块34向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所述第一请求消息用于请求获取所述UE的控制面网元的标识;通过所述接收模块31接收所述用户数据服务器发送的第一响应消息,所述第一响应消息中包括所述控制面网元的标识。
可选的,所述发送模块34具体用于:根据所述UE的状态向所述控制面网元发送所述第二下行报文。
图7为本发明实施例七提供的一种控制面网元的结构示意图,如图7所示,本实施例提供的控制面网元包括:接收模块41、确定模块42、第一生成模块43和发送模块44。
接收模块41,用于接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
确定模块42,用于根据所述UE的第一标识或所述UE的第二标识,以及本地保存的所述UE的上下文信息确定所述UE的接入设备;
第一生成模块43,用于根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
发送模块44,用于将所述第一下行报文发送给所述UE的接入设备。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,
进一步的,所述接收模块41还用于:接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理。相应的,所述控制面网元还包括第二生成模块,第二生成模块用于根据所述附着或注册消息生成并保存所述UE的上下文信息。
可选的,所述发送模块44具体用于:根据所述UE的状态信息向所述UE的接入设备发送所述第一下行报文。
可选的,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
图8为本发明实施例八提供的UE的结构示意图,如图8所示,本实施例提供的UE包括:接收模块51和发送模块52。
接收模块51,用于接收控制面网元发送的第三下行报文,所述第三下行报文包括用户报文和所述UE的第一标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
发送模块52,用于向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第三下行报文中还包括所述用户报文的业务指示信息。
上述实施例六、实施例七、实施例八提供的数据面处理网元、控制面网元和UE,可用于执行上述实施例二的方法,具体实现方式和技术效果类似,这里不再赘述。
图9为本发明实施例九提供的UE的结构示意图,如图9所示,本实施例提供的UE600包括:处理器61、存储器62、通信接口63和系统总线 64,所述存储器62和所述通信接口63通过所述系统总线64和所述处理器61连接并完成相互间的通信,所述存储器62用于存储计算机执行指令,所述通信接口63用于和其他设备进行通信,所述处理器61用于运行所述计算机执行指令,执行如下所述方法:
当UE有上行数据传输时,向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
进一步的,向控制面网元发送第一上行报文之前,所述处理器61还用于:向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
可选的,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
可选的,所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
图10为本发明实施例十提供的控制面网元的结构示意图,如图10所示,本实施例提供的控制面网元700包括:处理器71、存储器72、通信 接口73和系统总线74,所述存储器72和所述通信接口73通过所述系统总线74和所述处理器71连接并完成相互间的通信,所述存储器72用于存储计算机执行指令,所述通信接口73用于和其他设备进行通信,所述处理器71用于运行所述计算机执行指令,执行如下所述方法:
接收UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
根据所述第一上行报文确定所述UE的数据面处理网元;
向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接。
进一步的,所述控制面网元接收UE发送的包含的第一上行报文之前,所述处理器71还用于:接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识;根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,所述处理器71具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的数据面处理网元。
当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,所述处理器71还用于:根据所述第一上行报文确定所述UE的第二标识。
当所述第一上行报文和所述第二上行报文都包括所述UE的第一标识时,所述处理器71还用于:指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
可选的,所述第一上行报文中还包括所述用户报文的业务指示信息,所述处理器71具体用于:根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
可选的,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
可选的,所述第一上行报文中还包括安全信息,所述处理器71还用于:根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
可选的,所述控制面网元为移动管理实体或者会话管理实体中的一个或多个。
可选的,所述处理器71还用于:在向所述数据面处理网元发送所述第二上行报文时,将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。
可选的,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
上述实施例九、实施例十、实施例十一提供的UE、控制面网元和数据面处理网元,可用于执行上述实施例一的方法,具体实现方式和技术效果类似,这里不再赘述。
图11为本发明实施例十一提供的数据面处理网元的结构示意图,如图11所示,本实施例提供的数据面处理网元800包括:处理器81、存储器82、通信接口83和系统总线84,所述存储器82和所述通信接口83通过所述系统总线84和所述处理器81连接并完成相互间的通信,所述存储器82用于存储计算机执行指令,所述通信接口83用于和其他设备进行通信,所述处理器81用于运行所述计算机执行指令,执行如下所述方法:
接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
根据第二上行报文和/或所述UE的上下文信息确定通信对端;
将所述用户报文封装为第三上行报文,并将所述第三上行报文发送给所述通信对端,所述第三上行报文中包括所述用户报文和所述UE的第二标识。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接
可选的,所述UE的上行文信息携带在所述第二上行报文中;或者,所述UE的上行文信息由所述控制面网元通过信令方式发送给所述数据面处理网元。
可选的,所述UE上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和所述通信对端地址中的一个或多个。
可选的,所述第二上行报文中还包括所述用户报文的业务指示信息,所述处理器81具体用于:根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
可选的,所述处理器81将所述用户报文封装为第三上行报文,具体为:
从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
或者,当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
本发明实施例十二提供一种数据面处理网元,本实施例的数据面处理网元的结构与图11所示的数据面处理网元的结构相同,参照图11,本实施例中,所述处理器81用于:
接收第一下行报文,所述第一下行报文中包括用户报文和用户设备 UE的第二标识;
根据所述UE的第二标识,确定所述UE的控制面网元;
根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
向所述控制面网元发送第二下行报文。
其中,所述UE的接入设备与所述数据面处理网元之间不存在数据连接
可选的,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
可选的,所述第二下行报文中还包括所述用户报文的业务指示信息。
可选的,所述处理器81根据所述UE的第二标识,确定所述UE的控制面网元,具体为:根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
可选的,所述处理器81根据所述UE的第二标识,确定所述UE的控制面网元,具体为:向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所述第一请求消息用于请求获取所述UE的控制面网元的标识;接收所述用户数据服务器发送的第一响应消息,所述第一响应消息中包括所述控制面网元的标识。
可选的,所述处理器81向所述控制面网元发送所述第二下行报文,具体为:根据所述UE的状态向所述控制面网元发送所述第二下行报文。
本发明实施例十三提供一种控制面网元,本实施例的控制面网元的结构与图10所示的控制面网元的结构相同,参照图10,本实施例中,所述处理器71用于:
接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
根据所述UE的第一标识或所述UE的第二标识,以及本地保存的所述UE的上下文信息确定所述UE的接入设备;
根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
将所述第三下行报文发送给所述UE的接入设备。
其中,所述UE的接入设备与所述控制面网元之间不存在信令连接。
可选的,所述处理器71根据所述UE的第一标识或所述UE的第二标识,以及所述UE的上下文信息确定所述UE的接入设备之前,还用于:接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理;以及根据所述附着或注册消息生成并保存所述UE的上下文信息。
可选的,所述处理器71将所述第三下行报文发送给所述UE的接入设备,具体为:根据所述UE的状态信息向所述UE的接入设备发送所述第三下行报文。
可选的,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
本发明实施例十四提供一种UE,本实施例的UE的结构与图9所示的UE的结构相同,参照图9,本实施例中,所述处理器61用于:
接收控制面网元发送的第三下行报文,所述第三下行报文包括用户报文和所述UE的第一标识,其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接。
所述处理器61接收控制面网元发送的第三下行报文之前,还用于:向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
可选的,所述第三下行报文中还包括所述用户报文的业务指示信息。
上述实施例十二、实施例十三、实施例十四提供的数据面处理网元、控制面网元和UE,可用于执行上述实施例二的方法,具体实现方式和技术效果类似,这里不再赘述。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (77)

  1. 一种上行数据传输方法,其特征在于,包括:
    当用户设备UE有上行数据传输时,所述UE向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
  2. 根据权利要求1所述的方法,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
    所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
    所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  3. 根据权利要求1或2所述的方法,其特征在于,所述UE向控制面网元发送第一上行报文之前,还包括:
    所述UE向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,
    所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
  5. 根据权利要求1-4任一项所述的方法,其特征在于,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
  6. 根据权利要求1-5任一项所述的方法,其特征在于,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
  7. 根据权利要求4所述的方法,其特征在于,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
  8. 根据权利要求1-7任一项所述的方法,其特征在于,
    所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
  9. 一种上行数据传输方法,其特征在于,包括:
    控制面网元接收用户设备UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
    所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元;
    所述控制面网元向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
  10. 根据权利要求9所述的方法,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
  11. 根据权利要求9或10所述的方法,其特征在于,所述控制面网元接收UE发送的包含的第一上行报文之前,还包括:
    所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识;
    所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
  12. 根据权利要求9-11任一项所述的方法,其特征在于,所述第一上行报文中还包括所述用户报文的业务指示信息,所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元,包括:
    所述控制面网元根据所述用户报文的业务指示信息和/或所述UE的 签约信息,确定所述UE的数据面处理网元。
  13. 根据权利要求9所述的方法,其特征在于,当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,所述方法还包括:
    所述控制面网元根据所述第一上行报文确定所述UE的第二标识。
  14. 根据权利要求9所述的方法,其特征在于,当所述第一上行报文和所述第二上行报文都包括所述UE的第一标识时,所述方法还包括:
    所述控制面网元指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
  15. 根据权利要求13所述的方法,其特征在于,所述第一上行报文中还包括所述用户报文的业务指示信息,所述控制面网元根据所述第一上行报文确定所述UE的第二标识,包括:
    所述控制面网元根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
  16. 根据权利要求9-15任一项所述的方法,其特征在于,所述UE的第一标识为所述UE的身份标识或所述控制面网元分配的临时标识。
  17. 根据权利要求9-16任一项所述的方法,其特征在于,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
  18. 根据权利要求12或15所述的方法,其特征在于,所述用户报文的业务指示信息包括业务类型、业务标识、业务服务器寻址信息中的一种或多种。
  19. 根据权利要求9-18任一项所述的方法,其特征在于,所述第一上行报文中还包括安全信息,所述控制面网元根据所述第一上行报文确定所述UE的数据面处理网元之前,还包括:
    所述控制面网元根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
  20. 根据权利要求9所述的方法,其特征在于,所述控制面网元为移动管理实体或者会话管理实体中的一个或多个。
  21. 根据权利要求9所述的方法,其特征在于,还包括:
    所述控制面网元在向所述数据面处理网元发送所述第二上行报文时, 将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,
    所述控制面网元在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。
  22. 根据权利要求21所述的方法,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
  23. 一种上行数据传输方法,其特征在于,包括:
    数据面处理网元接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
    所述数据面处理网元根据第二上行报文和/或所述UE的上下文信息确定通信对端;
    所述数据面处理网元将所述用户报文封装为第三上行报文,并将所述第三上行报文发送给所述通信对端,所述第三上行报文中包括所述用户报文和所述UE的第二标识。
  24. 根据权利要求23所述的方法,其特征在于,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  25. 根据权利要求23或24所述的方法,其特征在于,所述UE的上行文信息携带在所述第二上行报文中;或者,
    所述UE的上行文信息由所述控制面网元通过信令方式发送给所述数据面处理网元。
  26. 根据权利要求23-25任一项所述的方法,所述UE上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和所述通信对端地址中的一个或多个。
  27. 根据权利要求23所述的方法,其特征在于,所述第二上行报文中还包括所述用户报文的业务指示信息,所述数据面处理网元根据第二上 行报文和/或所述UE的上下文信息确定通信对端,包括:
    所述数据面处理网元根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
  28. 根据权利要求23所述的方法,其特征在于,所述数据面处理网元将所述用户报文封装为第三上行报文,包括:
    所述数据面处理网元从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中;或者,
    当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,所述数据面处理网元根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中;或者,
    当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,所述数据面处理网元根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
  29. 一种下行数据传输方法,其特征在于,包括:
    数据面处理网元接收第一下行报文,所述第一下行报文中包括用户报文和用户设备UE的第二标识;
    所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制面网元;
    所述数据处理网元根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
    所述数据面处理网元向所述控制面网元发送第二下行报文。
  30. 根据权利要求29所述的方法,其特征在于,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保 存有所述数据连接的上下文。
  31. 权利要求29或30所述的方法,其特征在于,所述第二下行报文中还包括所述用户报文的业务指示信息。
  32. 根据权利要求29所述的方法,其特征在于,所述UE的第二标识为网络互联协议IP地址、UE外部标识或电话号码。
  33. 根据权利要求29-32任一项所述的方法,其特征在于,所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制面网元,包括:
    所述数据面处理网元根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
  34. 根据权利要求29-33任一项所述的方法,其特征在于,所述数据面处理网元根据所述UE的第二标识,确定所述UE的控制面网元,包括:
    所述数据面处理网元向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所述第一请求消息用于请求获取所述UE的控制面网元的标识;
    所述数据面处理网元接收所述用户数据服务器发送的第一响应消息,所述第一响应消息中包括所述控制面网元的标识。
  35. 根据权利要求29-34任一项所述的方法,其特征在于,所述数据面处理网元向所述控制面网元发送所述第二下行报文,包括:
    所述数据面处理网元根据所述UE的状态向所述控制面网元发送所述第二下行报文。
  36. 一种下行数据传输方法,其特征在于,包括:
    控制面网元接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
    所述控制面网元根据所述UE的第一标识或所述UE的第二标识,以及本地保存的所述UE的上下文信息确定所述UE的接入设备;
    所述控制面网元根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
    所述控制面网元将所述第三下行报文发送给所述UE的接入设备。
  37. 根据权利要求36所述的方法,其特征在于,所述UE的接入设备 与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
  38. 根据权利要求35或36所述的方法,其特征在于,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
  39. 根据权利要求36-38任一项所述的方法,其特征在于,所述控制面网元根据所述UE的第一标识或所述UE的第二标识,以及所述UE的上下文信息确定所述UE的接入设备之前,还包括:
    所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理;
    所述控制面网元根据所述附着或注册消息生成并保存所述UE的上下文信息。
  40. 根据权利要求36-39任一项所述的方法,其特征在于,所述控制面网元将所述第三下行报文发送给所述UE的接入设备,包括:
    所述控制面网元根据所述UE的状态信息向所述UE的接入设备发送所述第三下行报文。
  41. 一种下行数据传输方法,其特征在于,包括:
    用户设备UE接收控制面网元发送的第三下行报文,所述第三下行报文包括用户报文和所述UE的第一标识。
  42. 根据权利要求41所述的方法,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
    所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
    所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通 过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  43. 根据权利要求42所述的方法,其特征在于,所述UE接收控制面网元发送的第三下行报文之前,还包括:
    所述UE向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
  44. 根据权利要求41-43任一项所述的方法,其特征在于,所述第三下行报文中还包括所述用户报文的业务指示信息。
  45. 一种用户设备UE,其特征在于,包括:
    发送模块,用于当UE有上行数据传输时,向控制面网元发送包含用户报文的第一上行报文,以使所述控制面网元根据所述第一上行报文确定数据面处理网元,并将所述用户报文转发给所述的数据面处理网元进行下一步处理,所述第一上行报文中还包括所述UE的第一标识或第二标识。
  46. 根据权利要求45所述的UE,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
    所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
    所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述信令连接的上下文。
  47. 根据权利要求45或46所述的UE,其特征在于,所述发送模块还用于:
    向所述控制面网元发送附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,以使所述控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述 UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
  48. 根据权利要求45-47任一项所述的UE,其特征在于,所述第一上行报文中还包括所述用户报文的业务指示信息,以使所述控制面网元根据所述第一上行报文中的业务指示信息和/或所述UE的签约信息,为所述UE确定所述数据面处理网元。
  49. 根据权利要求45-48任一项所述的UE,其特征在于,所述第一上行报文中还包括安全信息,以使所述控制面网元基于所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
  50. 一种控制面网元,其特征在于,包括:
    接收模块,用于接收用户设备UE发送的第一上行报文,其中,所述第一上行报文中包括用户报文,以及所述UE的第一标识或所述UE的第二标识;
    第一确定模块,用于根据所述第一上行报文确定所述UE的数据面处理网元;
    发送模块,用于向所述数据面处理网元发送包含所述用户报文的第二上行报文,以使数据面处理网元将所述用户报文发送给通信对端,其中,所述第二上行报文中还包括所述UE的第一标识或所述UE的第二标识。
  51. 根据权利要求50所述的控制面网元,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
  52. 根据权利要求50或51所述的控制面网元,其特征在于,所述接收模块还用于:
    接收UE发送的包含的第一上行报文之前,接收所述UE发送的附着或注册消息,所述附着或注册消息包括所述UE的能力指示信息和所述UE的第一标识;
    所述控制面网元还包括:
    第二确定模块,用于根据所述UE能力指示信息和/或所述UE的签约 信息,决定是否允许UE向所述控制面网元发送包含所述第一上行报文,并进行相应的业务处理。
  53. 根据权利要求50-52任一项所述的控制面网元,其特征在于,所述第一上行报文中还包括所述用户报文的业务指示信息,所述第一确定模块具体用于:
    根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的数据面处理网元。
  54. 根据权利要求50所述的控制面网元,其特征在于,当所述第一上行报文中包括所述UE的第一标识,所述第二上行报文中包括所述UE的第二标识时,还包括:
    第三确定模块,用于根据所述第一上行报文确定所述UE的第二标识。
  55. 根据权利要求50所述的控制面网元,其特征在于,当所述第一上行报文和所述第二上行报文都包括所述UE的第一标识时,还包括:
    指示模块,用于指示所述UE的数据面处理网元为所述UE确定所述UE的第二标识。
  56. 根据权利要求54所述的控制面网元,其特征在于,所述第一上行报文中还包括所述用户报文的业务指示信息,所述第三确定模块具体用于:
    根据所述用户报文的业务指示信息和/或所述UE的签约信息,确定所述UE的第二标识。
  57. 根据权利要求50-56任一项所述的控制面网元,其特征在于,所述第一上行报文中还包括安全信息,还包括:
    接入控制模块,用于根据所述安全信息对所述第一上行报文执行接入控制、安全加解密或验证处理。
  58. 根据权利要求50所述的控制面网元,其特征在于,所述发送模块还用于:
    在向所述数据面处理网元发送所述第二上行报文时,将UE的上下文信息携带在所述第二上行报文中发送给所述数据面处理网元;或者,
    在向所述数据面处理网元发送所述第二上行报文之前,将所述UE的上下文信息通过信令方式发送给所述数据面处理网元。
  59. 根据权利要求58所述的控制面网元,所述UE的上下文信息包括所述UE的第二标识、所述UE的第一标识、所述控制面网元的标识信息和通信对端地址中的一个或多个。
  60. 一种数据面处理网元,其特征在于,包括:
    接收模块,用于接收控制面网元发送的第二上行报文和用户设备UE的上下文信息,其中,所述第二上行报文中包括所述UE的用户报文,以及所述UE的第一标识或所述UE的第二标识;
    确定模块,用于根据第二上行报文和/或所述UE的上下文信息确定通信对端;
    封装模块,用于将所述用户报文封装为第三上行报文,所述第三上行报文中包括所述用户报文和所述UE的第二标识;
    发送模块,用于将所述第三上行报文发送给所述通信对端。
  61. 根据权利要求60所述的数据面处理网元,其特征在于,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  62. 根据权利要求60或61所述的数据面处理网元,其特征在于,所述第二上行报文中还包括所述用户报文的业务指示信息,所述确定模块具体用于:
    根据所述用户报文的业务指示信息和/或所述UE的上下文信息中的通信对端地址信息,确定所述通信对端。
  63. 根据权利要求60或61所述的数据面处理网元,其特征在于,所述封装模块具体用于:
    从所述第二上行报文中获取所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中;或者,
    当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据所述UE的第一标识或所述第二上行报文中包括的所述用户报文的业务指示信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中;或者,
    当所述控制面网元指示所述数据面处理网元为所述UE确定所述UE的第二标识时,根据本地保存的所述UE的上下文信息,确定所述UE的第二标识,将所述UE的第二标识和所述用户报文封装在所述第三上行报文中。
  64. 一种数据面处理网元,其特征在于,包括:
    接收模块,用于接收第一下行报文,所述第一下行报文中包括用户报文和用户设备UE的第二标识;
    确定模块,用于根据所述UE的第二标识,确定所述UE的控制面网元;
    生成模块,用于根据所述第一下行报文生成第二下行报文,所述第二下行报文中包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
    发送模块,用于向所述控制面网元发送第二下行报文。
  65. 根据权利要求64所述的数据面处理网元,其特征在于,所述UE的接入设备与所述数据面处理网元之间不存在数据连接,所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  66. 根据权利要求64或65所述的数据面处理网元,其特征在于,所述第二下行报文中还包括所述用户报文的业务指示信息。
  67. 根据权利要求64-66任一项所述的数据面处理网元,其特征在于,所述确定模块具体用于:
    根据所述UE的第二标识,以及本地保存的所述UE的控制面网元和所述UE的第二标识的对应关系,确定所述UE的控制面网元。
  68. 根据权利要求64-66任一项所述的数据面处理网元,其特征在于,所述确定模块具体用于:
    通过所述发送模块向用户数据服务器发送第一请求消息,所述第一请求消息中包括所述UE的第二标识,所述第一请求消息用于请求获取所述UE的控制面网元的标识;
    通过所述接收模块接收所述用户数据服务器发送的第一响应消息,所 述第一响应消息中包括所述控制面网元的标识。
  69. 根据权利要求64-68任一项所述的数据面处理网元,其特征在于,所述发送模块具体用于:
    根据所述UE的状态向所述控制面网元发送所述第二下行报文。
  70. 一种控制面网元,其特征在于,包括:
    接收模块,用于接收数据面处理网元发送的第二下行报文,所述第二下行报文包括所述用户报文,以及所述UE的第一标识或所述UE的第二标识;
    确定模块,用于根据所述UE的第一标识或所述UE的第二标识,以及本地保存的所述UE的上下文信息确定所述UE的接入设备;
    第一生成模块,用于根据所述第二下行报文生成第三下行报文,所述第三下行报文中包括所述用户报文和所述UE的第一标识;
    发送模块,用于将所述第三下行报文发送给所述UE的接入设备。
  71. 根据权利要求70所述的控制面网元,其特征在于,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文。
  72. 根据权利要求70或71所述的控制面网元,其特征在于,所述第二下行报文和所述第三下行报文中还包括所述用户报文的业务指示信息。
  73. 根据权利要求70-72任一项所述的控制面网元,其特征在于,所述接收模块还用于:
    接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含所述用户报文的所述第一上行报文,并进行相应的业务处理;
    第二生成模块,用于根据所述附着或注册消息生成并保存所述UE的上下文信息。
  74. 根据权利要求70-72任一项所述的控制面网元,其特征在于,所 述发送模块具体用于:
    根据所述UE的状态信息向所述UE的接入设备发送所述第三下行报文。
  75. 一种用户设备UE,其特征在于,包括:
    接收模块,用于接收控制面网元发送的第三下行报文,所述第三下行报文包括用户报文和所述UE的第一标识。
  76. 根据权利要求75所述的UE,其特征在于,其中,所述UE的接入设备与所述控制面网元之间不存在信令连接,所述UE的接入设备与所述数据面处理网元之间不存在数据连接;
    所述信令连接是指所述UE的接入设备与所述控制面网元之间通过预先交互过程建立的用于传输信令的连接关系,并且所述UE的接入设备与所述控制面网元中保存有所述信令连接的上下文;
    所述数据连接是指所述UE的接入设备与所述数据面处理网元之间通过预先交互过程建立的用于传输数据的连接关系,并且所述UE的接入设备与所述数据面处理网元中保存有所述数据连接的上下文。
  77. 根据权利要求75所述的UE,其特征在于,还包括:
    发送模块,用于向所述控制面网元接收所述UE发送的附着或注册消息,所述附着或注册消息中包括所述UE的能力指示信息和所述UE的第一标识,控制面网元根据所述UE能力指示信息和/或所述UE的签约信息,决定是否允许所述UE向控制面网元发送包含用户报文的第一上行报文,并进行相应的业务处理。
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