WO2018006480A1 - Procédé et dispositif de transmission de données - Google Patents

Procédé et dispositif de transmission de données Download PDF

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Publication number
WO2018006480A1
WO2018006480A1 PCT/CN2016/096296 CN2016096296W WO2018006480A1 WO 2018006480 A1 WO2018006480 A1 WO 2018006480A1 CN 2016096296 W CN2016096296 W CN 2016096296W WO 2018006480 A1 WO2018006480 A1 WO 2018006480A1
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Prior art keywords
information
message
identifier
state
ran device
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PCT/CN2016/096296
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English (en)
Chinese (zh)
Inventor
金辉
欧阳国威
段小嫣
何岳
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680080741.2A priority Critical patent/CN108886822B/zh
Publication of WO2018006480A1 publication Critical patent/WO2018006480A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management

Definitions

  • Embodiments of the present invention relate to the field of communications and, more particularly, to methods and apparatus for transmitting data.
  • the base station deletes the context information of the UE stored in the base station.
  • the UE in the Idle state needs to transmit or receive data, it needs between the UE and the base station (eNodeB), between the eNodeB and the Mobility Management Entity (MME), and between the MME and the MME.
  • the service gateway (Serving GateWay, referred to as "SGW”) needs to perform multiple signaling interactions to enable the UE to enter the Connected state. After the data is sent or received, the UE also needs to perform multiple signaling interactions to make the UE. Enter the Idle state.
  • heartbeat packets small data packets
  • the transmission of the packet causes the UE to frequently switch between the Idle state and the Connected state, resulting in higher signaling overhead and affecting data transmission efficiency.
  • the present application provides a method and device for transmitting data, which can reduce signaling overhead during data transmission and improve data transmission efficiency.
  • Encryption processing Encryption and/or integrity protection of the information to be sent.
  • Key group A key that includes an encryption key and/or integrity protection.
  • Radio Access Network RAN
  • UE User Equipment
  • RRC Radio Resource Control
  • the identifier of the UE which is an identifier that can be uniquely identified by the UE, and may be an identifier allocated by the RAN device for the UE, or may be an identifier assigned by the control plane device (CP Function) to the UE.
  • CP Function control plane device
  • a method for transmitting data where a first radio access network RAN device receives a first message sent by a user equipment UE, where the first message includes data and a first identifier; a first identifier determining transmission path information of the data; the first RAN device forwarding the data according to the transmission path information of the data.
  • the radio access network RAN device may determine the transmission path information of the data of the UE by using the first identifier sent by the user equipment UE to transmit data, and forward the UE according to the path transmission information.
  • Data whereby when the UE in the idle state has a data transmission requirement, there is no need to reconstruct the user plane connection between the UE and the RAN device, the signaling connection between the RAN device and the control plane device in the core network device, and the RAN
  • the user plane connection between the device and the user plane device in the core network device can reduce the signaling overhead in the data transmission process and improve the efficiency of data transmission.
  • the first radio access network RAN device receives a first message sent by the user equipment UE, where the first message includes data and a first identifier, The first RAN device receives the first message sent by the UE, where the first message includes the data encrypted by the first key group, the first identifier encrypted by the first key group, and the first message The identity of the UE and the identity of the core network device;
  • the first RAN device determines the transmission path information of the data according to the first identifier, and the first RAN device sends a second message to the core network device according to the identifier of the core network device, where the second message is sent by the first RAN device.
  • the identifier of the UE and the first identifier encrypted by the first key group are processed, so that the core network device verifies the identifier according to the identifier of the UE and the first identifier encrypted by the first key group.
  • the context information of the UE is sent to the first RAN device, where the context information of the UE includes the first key group, the first identifier, and the first identifier.
  • the corresponding transmission path information is identified; the first RAN device determines the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the first RAN device may request the core network device to request the context information of the UE, and acquire the data transmission of the UE from the context information of the requested UE. Path information.
  • the implementation manner of the core network device verifying whether the UE is legal according to the identifier of the UE and the first identifier that is encrypted by the first key group is: the core network device obtains the first information from the saved UE according to the identifier of the UE. a key group, using the first key group to decrypt the first identifier encrypted by the first key group, if the first identifier encrypted by the first key group can be decrypted and saved in the core network device The first identifier is consistent, and the core network device determines that the UE is legal.
  • the context information of the UE includes all transmission path information used for transmitting data, in this case, the first RAN device is included according to the context of the UE.
  • the first key group decrypts the first identifier of the first key group encryption process included in the received first message, and obtains the clear path corresponding to the first identifier after obtaining the plaintext of the first identifier.
  • the identifier of the core network device may be carried in the identifier of the UE, or may be a single identifier carried in the first information.
  • the first RAN device may acquire the transmission path of the data of the UE from the context information of the saved UE.
  • Information can reduce the signaling overhead in the process of transmitting data and improve the efficiency of transmitting data.
  • the sending, by the first RAN device, the second message, according to the identifier of the UE the first RAN device sends the second message to the core network device.
  • the method before the first RAN device receives the first message sent by the UE, the method further includes: the first RAN device receiving the UE sending The identifier of the UE is sent by the first RAN device to the UE, where the feedback information is used to indicate that the first RAN device determines whether the context information of the UE is saved according to the identifier of the UE, so as to facilitate the
  • the UE requests the core network device to the first RAN device.
  • the first RAN device determines the transmission path information of the data according to the first identifier, and the first RAN device determines the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the UE requests the core network device to send the context information of the UE to the first RAN device, where the UE sends a request message to the core network device by using the first RAN device, where the request message is used to request the core network device to A RAN device transmits context information of the UE.
  • the context information of the UE sent by the core network device to the first RAN device includes a key
  • the first RAN device generates, according to the key included in the context information, the encryption between the UE and the first RAN device. And/or integrity protected key and sent to the UE.
  • the method before the first RAN device receives the first message sent by the UE, the method further includes: the first RAN device receiving the UE sending The identifier of the UE; the first RAN device sends feedback information to the UE, where the feedback information is used to indicate, by the first RAN device, whether to determine whether the context information of the UE is saved according to the identifier of the UE; When the information indicates that the first RAN device does not save the context information of the UE, the first RAN device receives the third message sent by the UE, where the third message includes the identifier of the UE, and the second key group is encrypted.
  • the first identifier and the identifier of the core network device sends a fourth message to the core network device according to the identifier of the core network device, where the fourth message includes the identifier of the UE and the second key Encrypting the first identifier that is processed by the group, so that the core network device sends the UE to the first RAN device according to the identifier of the UE and the first identifier that is encrypted by the second key group.
  • Up and down Information context information of the UE included in the first transmission path and the identification information corresponding to the first identification;
  • the first RAN device determines the transmission path information of the data according to the first identifier, and the first RAN device determines the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the second key group is a non-access stratum (Non Access Stratum, abbreviated as "NAS”) key group between the UE and the core network device.
  • NAS Non Access Stratum
  • the first radio access network RAN device receives a first message sent by the user equipment UE, where the first message includes data And the first identifier, the first RAN device receiving the first message sent by the UE, where the first message includes the data encrypted by the first key group, and the first key group is encrypted and processed.
  • the determining, by the first RAN device, the transmission path information of the data, according to the first identifier includes: when the first RAN device determines, according to the identifier of the UE, that the context information of the UE is not saved, the first RAN device is configured according to the The identifier of the second RAN device sends a fifth message to the second RAN device, where the fifth message includes the identifier of the UE and the first identifier encrypted by the first key group, so as to facilitate the second
  • the RAN device sends the context information of the UE to the first RAN device according to the identifier of the UE and the first identifier that is encrypted by the first key group, and the context information of the UE includes the first a key group, the first identifier, and the transmission path information corresponding to the first identifier; the first RAN device determines the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the first RAN device may request the context information of the UE from the RAN device that the UE once camped on, and obtain the context information of the UE from the request. Transmission path information of the data of the UE.
  • the identifier of the second RAN device may be carried in the identifier of the UE, or may be a single identifier carried in the first information.
  • the context information of the UE may be requested by the RAN device that is the last time the UE is camped according to the method in the fifth possible implementation manner of the first aspect, If the request fails, the UE requests the context information of the UE from the core network device according to the method in the second possible implementation manner of the first aspect.
  • the first radio access network RAN device receives a first message sent by the user equipment UE, where the first message includes data and a first identifier,
  • the first RAN device includes the first message sent by the UE, where the first message includes the data encrypted by the first key group, the first identifier encrypted by the first key group, and the first message
  • the context information of the UE is processed by the public key of the RAN device, and the first key group is included in the context information of the UE.
  • the method further includes: the first RAN device receiving the identifier of the UE sent by the UE; the first RAN device sending feedback information to the UE, where the feedback information is used to indicate that the first RAN device determines whether to save according to the identifier of the UE Context information of the UE
  • the UE performs encryption processing on the context of the UE by using the public key of the first RAN device when the feedback information indicates that the first RAN device does not save the context information of the UE.
  • the first RAN device determines the transmission path information of the data packet according to the first identifier, and the first RAN device decrypts the context information of the UE by using a private key corresponding to the public key. Obtaining the first key group included in the context information of the UE; the first RAN device decrypting the first identifier encrypted by the first key group by using the first key group, to obtain the first An identifier is determined by the first RAN device according to the correspondence between the first identifier and the transmission path information.
  • the UE may receive the public key of the first RAN device in the system broadcast message, and perform encryption processing on the context information of the UE by using the public key.
  • the first RAN device stores the correspondence between the first identifier and the transmission path information, and the first RAN device decrypts the context of the UE that has been encrypted by using the public key group according to the private key, and then obtains the first key.
  • the first RAN device decrypts the received data encrypted by using the first key group and the first identifier encrypted by the first key group by using the first key group, according to the decrypted first By identifying the correspondence between the information and the transmission path information, the transmission path information of the data can be determined.
  • the context information of the UE includes a first key group, a first identifier, and a correspondence between the first identifier and the transmission path information, where the first RAN device can directly obtain the UE from the context information of the UE.
  • the transmission path information of the data includes a first key group, a first identifier, and a correspondence between the first identifier and the transmission path information, where the first RAN device can directly obtain the UE from the context information of the UE.
  • the first RAN device after receiving the context information of the UE, saves the context information of the UE for a period of time. For example, when the UE enters the Idle state in the first RAN device, the first RAN device starts the context information corresponding to the UE. Timer, when the timer expires, the first RAN device deletes the context information of the saved UE. When the UE has data receiving or transmitting, the first RAN device resets the Timer to ensure that there is data transmission. The context information of the UE does not expire, improving the efficiency of data transmission.
  • the context information of the UE is saved in the first RAN device and the UE, where the context information of the UE includes the first key group, The first identifier and the transmission path information corresponding to the first identifier, before the first RAN device receives the first message sent by the UE, the method further includes: the first RAN device receiving the sixth message sent by the UE a message, the sixth RAN device is configured to request the first RAN device to restore a signaling connection between the first RAN device and the UE; the first RAN device sends the signaling message to the UE Sending a seventh message, the seventh message is used to indicate that the signaling connection between the first RAN device and the UE has been restored, so that the UE uses the first key group pair after receiving the seventh message.
  • the data and the first identifier are encrypted;
  • the first RAN device determines the transmission path information of the data according to the first identifier, and the first RAN device determines the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the UE is in a Suspend state in the first RAN device, and when the UE has data to transmit, and the UE determines that the first RAN device is the RAN device when the UE enters the Suspend state, the first RAN is in the first RAN.
  • the timer corresponding to the context information of the UE saved in the device does not time out, and the UE sends a request message to the first RAN device requesting the first RAN device to restore the signaling connection between the first RAN device and the UE, so that the first RAN device is receiving.
  • the signaling connection between the first RAN device and the UE is resumed, and the UE transmits data to the first RAN device through the recovered signaling connection.
  • the first RAN device is configured according to the first RAN device Before the data is transmitted, the method further includes: the first RAN device acquiring the second identifier of the UE, where the second identifier is used by the first RAN device to determine when the downlink data is received The destination receiving device of the downlink data is the UE;
  • the first RAN device forwards the data according to the transmission path information of the data, including: the first RAN device determines, according to the transmission path information of the data, a next hop forwarding device of the data; the first RAN device The data and the second identity are sent to the next hop forwarding device.
  • the second identifier uniquely identifies the UE on the first RAN device side, or the second identifier identifies a bearer of the UE on the first RAN device side, for example, the second identifier is the first RAN device.
  • the first RAN device can simultaneously send the data and the second identifier to the next hop forwarding device of the data, which can further save signaling overhead.
  • the data transmission path information The address information of the next hop forwarding device of the data; or the address information of the next hop forwarding device of the data and the third identifier allocated by the next hop forwarding device to the UE, the third label
  • the next hop forwarding device determines that the data belongs to the UE.
  • the third identifier uniquely identifies the UE in the core network device, or the third identifier uniquely identifies a bearer of the UE on the core network device side.
  • the first message sent by the UE to the first RAN device is a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the specific implementation manner of the data forwarding by the first RAN device is: the first RAN device generates a General Packet Radio Service Tunnel Protocol (GTP). a Protocol Data Unit (“PDU”), the GTP-PDU including data and the third identifier.
  • GTP General Packet Radio Service Tunnel Protocol
  • PDU Protocol Data Unit
  • the third identifier is carried in an extended header of the GTP-PDU.
  • the second aspect provides a method for transmitting data, including: determining, by the user equipment UE, a first identifier corresponding to the data, where the first identifier is used by the first radio access network RAN device to determine the transmission of the data according to the first identifier.
  • Path information the UE sends a first message to the first RAN device, where the first message includes the data and the first identifier.
  • the first identifier is sent to the first RAN device, so that the first RAN device acquires the UE according to the first identifier.
  • Transmission path information of the data whereby when the UE in the idle state has a data transmission requirement, there is no need to reestablish the user plane connection between the UE and the RAN device, and between the RAN device and the control plane device in the core network device.
  • the signaling connection and the user plane connection between the RAN device and the user plane device in the core network device can reduce the signaling overhead in the data transmission process and improve the efficiency of transmitting data.
  • the method further includes: the UE encrypting the data and the first identifier by using a first key group;
  • the UE sends a first message to the first RAN device, where the first message includes the data and the first identifier, and the UE sends a first message to the first RAN device, where the first message includes
  • the UE uses the first key group to encrypt the processed data, the first identifier identified by the UE using the first key group, the identifier of the UE, and the identifier of the core network device, to facilitate the first
  • the RAN device acquires the context information of the UE according to the identifier of the UE, the identifier of the core network device, and the first identifier that is used by the UE to be encrypted by using the first key group, where the context information of the UE includes the first a key group, the first identifier, and the first identifier Transmission path information.
  • the method before the sending, by the UE, the first message to the first RAN device, the method further includes: sending, by the UE, the first RAN device The UE receives the feedback information sent by the first RAN device, and the feedback information is used to indicate that the first RAN device determines, according to the identifier of the UE, whether the context information of the UE is saved, the context of the UE.
  • the information includes the first identifier and the transmission path information corresponding to the first identifier.
  • the UE sends a second message to the core network device, where The second message is used to request the core network device to send the context information of the UE to the first RAN device.
  • the method before the sending, by the UE, the first message to the first RAN device, the method further includes: sending, by the UE, the first RAN device The UE receives the feedback information sent by the first RAN device, and the feedback information is used to indicate that the first RAN device determines whether the context information of the UE is saved according to the identifier of the UE; When the first RAN device indicates that the context information of the UE is not saved, the UE sends a third message to the first RAN device, where the third message includes the identifier of the UE, and the second key group is encrypted.
  • the context information of the UE includes the first identifier and transmission path information corresponding to the first identifier.
  • the method further includes: the UE encrypting the data and the first identifier by using a first key group;
  • the UE sends a first message to the first RAN device, where the first message includes the data and the first identifier, and the UE sends a first message to the first RAN device, where the first message includes The data that is encrypted by the UE using the first key group, the first identifier encrypted by the UE using the first key group, the identifier of the UE, and the identifier of the second RAN device, the second RAN And determining, by the device, the RAN device that saves the context information of the UE, for the first RAN device, according to the identifier of the UE, the first identifier and the first identifier that the UE uses the first key group to encrypt and process.
  • the identifier of the second RAN device acquires the context information of the UE, where the context information of the UE includes the first key group, the first identifier, and the transmission path information corresponding to the first identifier.
  • the method further includes: The UE sends the identifier of the UE to the first RAN device; the UE receives the feedback information sent by the first RAN device, where the feedback information is used to indicate that the first RAN device determines whether the UE is saved according to the identifier of the UE. The result of the judgment of the context information.
  • the UE encrypts the context of the UE by using the public key of the first RAN device, where the context information of the UE includes the first secret. Key group
  • the UE sends a first message to the first RAN device, where the first message includes the data and the first identifier, and the UE sends a first message to the first RAN device, where the first message includes
  • the UE encrypts the processed data using the first key group, the first identifier encrypted by the UE using the first key group, and the public key encrypted by the UE using the first RAN device.
  • the context information of the UE so that the first RAN device acquires the transmission path information of the data according to the context information of the UE.
  • the context information of the UE is saved in the first RAN device and the UE, where the context information of the UE includes the first key group, The first identifier and the transmission path information corresponding to the first identifier, before the UE sends the first message to the first RAN device, the method further includes: the UE sending a fourth message to the first RAN device, The fourth message is used to request the first RAN device to restore the connection between the UE and the first RAN device; the UE receives a fifth message sent by the first RAN device, where the fifth message is used to indicate the UE and the The connection between the first RAN devices has been restored.
  • the sending, by the UE, the first message to the first RAN device includes: sending, by the UE, the first message to the first RAN device by using the connection.
  • the first RAN device recovers the connection between the UE and the first RAN device, and the first RAN device restores the signaling connection between the UE and the first RAN device, or may be the first RAN.
  • the device recovers the signaling connection and the data connection between the UE and the first RAN device.
  • the method before the sending, by the UE, the fourth message to the first RAN device, the method further includes: The first RAN device sends a sixth message, where the sixth message is used to indicate that the first RAN device sets the UE to a suspended state; the UE receives a seventh message sent by the first RAN device, where the seventh message is used by the first RAN device. The indication that the first RAN device has set the UE to a suspended state.
  • the UE sends the sixth message to the first RAN device, where the UE sends the UE to the first RAN device when the UE determines that the mobile range of the UE within a preset time range is within a preset range.
  • the sixth message is a short message that specifies that the mobile range of the UE within a preset time range is within a preset range.
  • the preset time period can be set according to the needs of the user.
  • the preset time period can be set from 8:00 am to 5:00 pm
  • the preset range can also be set according to the actual situation of the user.
  • the preset range can be set. It is an area within 100 meters of the user's work location.
  • the data transmission path information includes The address information of the next hop forwarding device of the data, or the address information of the next hop forwarding device of the data and the third identifier allocated by the next hop forwarding device to the UE, where the third identifier is used
  • the next hop forwarding device determines that the data belongs to the UE.
  • a third aspect provides a method for transmitting data, including: receiving, by a radio access network RAN device, data sent by a user equipment UE through a data radio bearer DRB; and determining, by the RAN device, the correspondence between the DRB and the transmission path information a transmission path information of the data; the RAN device acquires a first identifier of the UE, where the first identifier is used by the RAN device to determine, when receiving downlink data, that the destination receiving device of the downlink data is the UE; The transmission path information of the data is sent to the next hop forwarding device of the data and the first identifier of the UE.
  • the RAN device transmits the first identifier of the UE to the next hop forwarding device while transmitting data to the next hop forwarding device of the data of the received UE, because the first An identifier can be used to determine that the destination receiving device of the downlink data is the UE when the RAN device receives the downlink data, thereby saving signaling overhead in the data transmission process and improving data transmission efficiency.
  • the context information of the UE is saved in the RAN device and the UE, and the context information of the UE includes a key group and the first identifier.
  • the transmission path information corresponding to the first identifier before the RAN device receives the data sent by the UE, the method further includes: receiving, by the RAN device, a first message sent by the UE, where the first message is used to request the RAN The device recovers the signaling connection between the RAN device and the UE and the DRB; the RAN device sends a second message to the UE, the second message is used to indicate a signaling connection between the RAN device and the UE, and the The DRB has been restored.
  • the method before the RAN device receives the data packet sent by the UE, the method further includes: receiving, by the RAN device, a third message sent by the core network device, where The third message includes context information of the UE, and the context information of the UE includes transmission path information corresponding to the DRB;
  • the RAN device receives the data that is sent by the user equipment UE through the data radio bearer DRB, and includes: the RAN device establishes the DRB with the UE according to the context information of the UE; and the RAN device receives the UE by using the UE.
  • the data sent by the DRB includes: the RAN device establishes the DRB with the UE according to the context information of the UE; and the RAN device receives the UE by using the UE.
  • the data sent by the DRB includes: the RAN device establishes the DRB with the UE according to the context information of the UE; and the RAN device receives the UE by using the UE.
  • the data sent by the DRB includes: the RAN device establishes the DRB with the UE according to the context information of the UE; and the RAN device receives the UE by using the UE.
  • the data sent by the DRB includes: the RAN device establishes the DRB with the UE according to the context information of the
  • the transmission path information of the data includes: a next hop of the data The address information of the forwarding device; or the address information of the next hop forwarding device of the data and the second identifier allocated by the next hop forwarding device to the UE, the second identifier is used for the next hop forwarding
  • the device determines that the data belongs to the UE.
  • a fourth aspect provides a method for transmitting data, where the user equipment UE sends a first message to a radio access network RAN device, where the first message is used to request the RAN device to set the UE to a suspended state;
  • the UE device receives a second message sent by the RAN device, where the second message is used to indicate that the RAN device has set the UE to a suspended state, so that the UE requests the RAN device to recover when sending data to the RAN device.
  • a connection between the UE and the RAN device and transmitting data to the RAN device through the connection.
  • the user equipment UE requests the RAN device to set the UE to a suspended state, whereby when the UE needs to transmit data, the UE may request the RAN device to directly restore the connection between the RAN device and the UE. It can save signaling overhead and improve the efficiency of data transmission.
  • the UE sends the first message to the RAN device, where the UE determines whether the mobile range of the UE in the preset time period is in a preset range.
  • the UE sends the first message to the RAN device when the UE determines that the UE's range of movement within the device time period is within a preset range.
  • the data sent by the UE is small data
  • the small data is usually an instant message, such as a heartbeat packet of a WeChat application
  • the size of the small data is generally less than 20k.
  • a radio access network RAN device for performing the method of any of the first aspect or the first aspect of the first aspect.
  • the RAN device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a user equipment for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the user equipment comprises means for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • a radio access network RAN device for performing the method in any of the foregoing third or third possible implementations.
  • the RAN device comprises means for performing the method in any of the possible implementations of the third aspect or the third aspect described above.
  • the eighth aspect provides a user equipment, configured to perform the method in the foregoing fourth aspect, or the method in any possible implementation manner of the fourth aspect, specifically, the user equipment is configured to perform the foregoing fourth aspect or A unit of a method in any of the possible implementations of the fourth aspect.
  • a ninth aspect provides a radio access network RAN device, including: a processor, a memory, and a transceiver, wherein the processor, the memory, and the transceiver are connected by a bus system, where the memory is used to store an instruction, and the processor uses The instructions stored in the memory are executed to control the transceiver to receive information and transmit information, such that the RAN device performs the method of any of the above aspects or any of the possible implementations of the first aspect.
  • a user equipment comprising: a processor, a memory, and a transceiver, the processor, the memory and the transceiver being connected by a bus system, the memory is for storing instructions, and the processor is configured to execute the memory
  • the instructions stored in the control to receive the information and transmit the information, such that the user equipment performs the method of any of the second aspect or the second aspect of the second aspect.
  • a radio access network RAN device including: a processor, a memory, and a transceiver, the memory, the receiver and the transceiver being connected by a bus system, wherein the memory is used to store an instruction, the processing The apparatus is configured to execute instructions stored in the memory to control the transceiver to receive information and transmit information, such that the RAN device performs the method of any of the third aspect or the third aspect of the third aspect.
  • a user equipment including: a processor, a memory, and a transceiver, the processor, the memory, the transceiver being connected by a bus system, the memory is configured to store instructions, and the processor is configured to execute The instructions stored in the memory to control the transceiver to receive information and transmit information, such that the user equipment performs the method of any of the above-described fourth or fourth aspects of the fourth aspect.
  • a thirteenth aspect a computer readable medium for storing a computer program, the computer program comprising means for performing the first aspect or any of the possible implementations of the first aspect The instruction of the law.
  • a fourteenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the second aspect or any of the possible implementations of the second aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of any of the third aspect or any of the possible implementations of the third aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of any of the fourth aspect or any of the possible implementations of the fourth aspect.
  • FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for transmitting data according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method of establishing a packet data unit session according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for transmitting data according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for transmitting data according to another embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a method of establishing a packet data unit session according to another embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a method of transmitting data according to still another embodiment of the present invention.
  • FIG. 12 is a schematic flowchart of a method of transmitting data according to still another embodiment of the present invention.
  • FIG. 13 is a schematic block diagram of a RAN device according to an embodiment of the present invention.
  • FIG. 14 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 15 is a schematic block diagram of a RAN device according to another embodiment of the present invention.
  • FIG. 16 is a schematic block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 17 is another schematic block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 18 is a schematic block diagram of a RAN device according to still another embodiment of the present invention.
  • FIG. 19 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.
  • 21 is a schematic flowchart of a method of transmitting data according to still another embodiment of the present invention.
  • FIG. 22 is a schematic flowchart of a method of transmitting data according to still another embodiment of the present invention.
  • FIG. 23 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • FIG. 24 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.
  • FIG. 25 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.
  • FIG. 26 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.
  • FIG. 27 is a schematic block diagram of a core network device according to an embodiment of the present invention.
  • FIG. 28 is a schematic block diagram of an access network device according to an embodiment of the present invention.
  • 29 is a schematic block diagram of an access network device according to an embodiment of the present invention.
  • FIG. 30 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.
  • FIG. 31 is a schematic block diagram of a core network device according to another embodiment of the present invention.
  • 32 is a schematic block diagram of an access network device in accordance with another embodiment of the present invention.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • a user equipment may also be referred to as a terminal device, a mobile station (Mobile Station, abbreviated as "MS”), a mobile terminal (Mobile Terminal), etc., the user.
  • the device may communicate with one or more core networks via a Radio Access Network ("RAN").
  • the user equipment may be a mobile phone (or "cellular” phone), with a mobile terminal.
  • the computer or the like may be, for example, a portable, pocket-sized, hand-held, computer-built or in-vehicle mobile device, and a terminal device in a future 5G network or a terminal device in a future evolved PLMN network. It can be understood that the user equipment can also be a chip with communication function in the above-mentioned device (mobile phone, computer with mobile terminal, etc.).
  • a radio access network (Radio Access Network, hereinafter referred to as "RAN”) device may correspond to a base station in an existing communication system, and a network side device in a future 5G network.
  • RAN Radio Access Network
  • FIG. 1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present invention.
  • the communication system includes a user equipment UE, a RAN device, a core network, and an application function entity (Application Function, referred to as “AF” for short).
  • the data network Data Network, referred to as "DN"
  • CP Function Control Plane Function
  • UP Function User Plane Function
  • control plane device may also be referred to as a “control plane entity”
  • the user plane device may also be referred to as a “user plane entity”.
  • the UE and the CP Function are connected through the NG1 interface
  • the RAN and the CP Function are connected through the NG2 interface
  • the RAN and the UP Function are connected through the NG3 interface
  • the CP Function and the UP Function are passed.
  • the NG4 interface is connected
  • the CP Function and the AF are connected through the NG5 interface
  • the UP Function and the DN are connected through the NG6 interface.
  • the CP function stores the context information of the UE, performs legality verification on the UE, performs mobility management and session management on the UE, and transmits control signaling between the UE and the CP Function through the control plane.
  • the UP Function is used to forward data of the UE, and the data of the upper layer application is transmitted between the UE and the UP Function through the user plane.
  • the application function entity is used to determine the quality of service (Quality of Service, referred to as "QoS”) that the UE can use, and the DN refers to an Internet (Internet) network other than the carrier network.
  • QoS Quality of Service
  • Figure 1 shows an UP Function just for the sake of example, usually in the core network package Including a plurality of UP functions, assuming that the core network includes two UP functions, namely UP Function1 and UP Function2, in the process of transmitting data, the UP function 1 and the UP Function 2 always maintain a tunnel connection for the UE.
  • the UP Function 1 can determine which UE sends the data according to the target Tunnel Endpoint Identifier (TEID) in the data, and the existing tunnel of the UE will be used. This data is sent to UP Function 2.
  • TEID Tunnel Endpoint Identifier
  • the UP Function 1 and the UP Function 2 do not need to maintain a tunnel connection for the UE.
  • the UP Function 1 can determine the address of the UP Function 2 according to other information, and send the data to the UE.
  • determining B according to A should be understood as: B can be determined only according to A when determining B, or B can be determined according to A and other conditions (or information) when determining B. .
  • FIG. 2 shows a schematic flow chart of a method of transmitting data according to an embodiment of the present invention. As shown in FIG. 2, the method 100 includes:
  • the user equipment UE sends a first message to the radio access network RAN device, where the first message includes data and a first identifier.
  • the RAN device determines, according to the first identifier, transmission path information of the data.
  • the RAN device forwards data to the transmission path information according to the data.
  • the RAN device determines that the next hop forwarding device of the data is an UP Function according to the transmission path information of the data, and the RAN device transmits the received data to the UP Function. If there are multiple user plane devices in the core network, the user plane device receiving the data transmitted by the RAN device can forward the data to other user plane devices according to the method described above.
  • the method for transmitting data will be described in detail below with reference to specific examples. It should be noted that, when describing a specific embodiment, the data to be transmitted in the UE is described as an example of small data, but it can be understood. The method of the embodiment of the present invention is also applicable to a transmission scenario of non-small data.
  • the small data is usually an instant message, such as a heartbeat packet of a WeChat application, and the size of the small data is generally less than 20k.
  • the key is used as the encryption key as an example.
  • the key in the embodiment of the present invention further includes a key for integrity protection, or It is understood that the key in the specific embodiment of the present invention is actually a "key group", and this key group includes an encryption key and/or an integrity protected key.
  • FIG. 3 is a schematic flowchart of establishing a PDU session according to an embodiment of the present invention. As shown in FIG. 3, the method 200 includes:
  • the UE sends an attach request (Attach Request) message to the CP Function, and then the CP Function returns an Attach Accept message to the UE, and the Attach Accept message carries the identifier ID assigned by the CP Function to the UE.
  • the UE ID is used to uniquely identify the UE on the control plane.
  • the UE sends a session establishment request (Session Establish Request) message to the CP Function, requesting to establish a PDU Session;
  • Session Establish Request Session Establish Request
  • the Session Establish Request message carries the Small Data Indication information, where the Small Data Indication information is used to indicate that the UE has small data transmission capability, or the UE uses the The PDU session sends small data, or the UE needs to send small data.
  • the CP Function sends a Create Session Request message to the UP Function1, requesting the UP Function 1 to establish a PDU Session;
  • the Create Session Request message carries a Small Data Indication
  • the UP Function 1 allocates a Tunnel Endpoint ID (Tennel Endpoint ID) for the small data transmission.
  • the TEID uniquely identifies the UE in the UP Function 1, or the TEID uniquely identifies a user plane bearer of the UE in the UP Function 1, or the TEID uniquely identifies a data stream of the UE in the UP Function 1 (Data) Flow).
  • the TEID is referred to as "UP 1-TEID”. The understanding of UP 1-TEID herein is equally applicable to other embodiments of the invention.
  • UP Function 1 sends a Create Session Request message to UP Function 2
  • UP Function 2 sends a Create Session Response message to UP Function 1 to establish a PDU Session between UP Function 1 and UP Function 2. It can be understood that when there is only UP Function 1 in the core network, S240 is an omitting step.
  • the UP Function1 sends a Create Session Response message to the CP Function.
  • the Create Session Response message carries the UP Function 1 in S230. TEID assigned by the UE.
  • the CP Function generates a path information identifier (Data Path ID);
  • the CP Function stores the correspondence between the Data Path ID and the IP address of UP Function 1 and UP 1-TEID.
  • the CP Function sends a message to the RAN device.
  • the message sent by the CP Function to the RAN device includes a session establishment response (Session Establish Response) message sent by the CP Function to the UE, and the context information of the UE, where the CP is carried by the CP Function in the S260.
  • Path ID where the context information of the UE includes: a CP Path is a Data Path ID generated by the UE, a UE ID, a Key Key, and an address of the UP Function 1 and an UP-1 TEID.
  • the data path ID has a one-to-one correspondence with the address of the UP Function 1 and the UP-1 TEID.
  • the context information of the UE includes: a Data Path ID, a UE ID, a Key Key, an IP address of the UP Function 1, and an IP address of the UP Function 2.
  • the understanding of the context information of the UE in this method is applicable to other embodiments of the present invention.
  • the Key includes an encryption key and/or an integrity protected key, and the understanding of Key is equally applicable to other embodiments of the present invention.
  • the RAN device saves the UE ID, the key corresponding to the UE, and the IP address of the UP Function1 corresponding to the Data Path ID and the UP-1 TEID in the context information of the UE;
  • the RAN stores the correspondence between the Data Path ID and the IP address of the UP Function 1 and the IP address of the UP Function 2.
  • the RAN device After the UE enters the Idle state in the RAN device, the RAN device starts a timer corresponding to the saved correspondence. If the timer expires, the RAN device deletes the saved correspondence, if the UE has an uplink or For downlink data, the RAN device will reset the Timer to ensure that the Timer will not time out during the uplink or downlink data transmission.
  • S290 The RAN device sends an RRC message to the UE, where the RRC message carries a Session Establish Response message included in the message received in S270.
  • FIG. 4 is an uplink transmission data according to an embodiment of the present invention.
  • the key sent by the CP Function to the UE may be a key allocated by the CP Function for the UE for small data, and the key for the small data does not change because the UE replaces the RAN device.
  • method 300 includes:
  • the UE sends an RRC message to the RAN device, where the RRC message includes the UE ID, the encrypted small data, and the encrypted Data Path ID.
  • the UE uses the Key to separately encrypt the small data to be sent and the Data Path ID. Specifically, the UE may determine whether the data is small data according to the size of the data sent by the application (Application, referred to as “APP”), or the APP may indicate the modem (Modulator-Demodulator, the UE) through the tag when transmitting the data.
  • the data sent by simply referred to as "Modem” is small data.
  • DRB Data Radio Bearer
  • the RAN device checks whether the context information of the UE is saved according to the UE ID of the UE; if yes, decrypts the Data Path ID by using the Key of the UE, and obtains the IP address and UP- of the UP Function 1 according to the saved correspondence. 1 TEID, after performing S380 and subsequent steps, if not, executing S330 and subsequent steps;
  • the RAN device sends a UE Information Request message to the CP Function, where the UE information request message includes a UE ID and a Data Path ID of the encryption process;
  • the RAN device may determine the CP Function according to the identifier of the CP Function in the UE ID. If the identifier of the CP Function is separately carried in the RRC message in S310, the RAN device may The identifier of the CP Function carried in the RRC message separately determines the CP Function.
  • the CP Function determines the legality of the UE, and when it is determined that the UE is legal, executing S350;
  • the CP Function searches for the context information of the UE according to the UE ID, acquires the Key in the context information of the UE, and decrypts the Data Path ID of the encryption process by using the obtained Key. If the acquired Key is successfully used, The data path ID of the encrypted data path ID is decrypted and the data path ID obtained by the decryption is the same as the data path ID of the UE saved in the CP Function, and the UE is considered to be legal, and the address of the UP Function 1 corresponding to the Data Path ID is obtained. UP-1 TEID.
  • the CP Function further verifies the integrity of the Data Path ID. If the CP Function verifies that the Data Path ID has not been tampered with and is consistent with the Data Path ID of the UE saved in the CP Function, the UE is considered to be legal.
  • the CP Function sends a UE Information Response (Information Response) message to the RAN device.
  • Information Response Information Response
  • the UE Information Response message includes a Data Path ID, an IP address of the UP Function 1, an UP 1-TEID, and a Key.
  • the RAN device saves the Key of the UE and the address of the UP Function 1 corresponding to the Data Path ID and the UP 1-TEID in the context information of the UE;
  • the RAN device acquires a RAN TEID of the UE, and generates a General Packet Radio Service Tunnel Protocol (GTP) PDU;
  • GTP General Packet Radio Service Tunnel Protocol
  • the RAN TEID refers to the TEID allocated by the RAN device to the UE. If the RAN TEID is included in the context information of the UE stored in the RAN device, the RAN device obtains the RAN TEID from the context information of the UE. The RAN device assigns a RAN TEID to the UE.
  • the GTP PDU generated by the RAN device includes the address of the UP Function 1, the UP1-TEID, the small data processed by the Key decryption, the address of the RAN device, and the RAN TEID, where the address of the RAN device and the RAN TEID carry the extension of the GTP PDU.
  • the header Extended Header
  • the RAN device After the UE enters the Idle state in the RAN device, the RAN device starts a timer corresponding to the recorded correspondence. If the timer expires, the RAN device deletes the corresponding relationship of the record. If the UE has uplink or downlink data, the RAN The device will reset the Timer to ensure that the Timer will not time out during the upstream or downstream data transmission.
  • the RAN device sends a GTP PDU to the UP Function 1;
  • the UP Function 1 stores the address of the RAN device and the RAN TEID, and sends the GTP PDU to the UP Function 2;
  • the UP Function 1 when the UP Function 1 saves the address of the RAN device and the RAN TEID, the corresponding Timer is started. When the Timer expires, the UP Function 1 deletes the address of the saved RAN device and RAN TEID, when UP Function 1 receives the uplink or downlink data of the UE, UP Function 1 resets the Timer.
  • the UP Function 2 sends the data in the received GTP PDU to the corresponding APP server (Sever), and then the APP Sever sends a response message to the UP Function 2 (for example, FIG. 4 ACK), UP Function 2 sends a response message to UP Function 1 after receiving the response message, UP Function 1 acquires the address of the saved RAN device and the RAN TEID, and generates a downlink GTP PDU to be sent to the RAN device, and the RAN device receives After the GTP PDU sent by the UP Function 1, the UE ID is determined according to the RAN TEID, and the key corresponding to the UE is obtained according to the UE ID, and the obtained key is used to encrypt the data in the GTP PDU and then sent to the UE through an RRC message. The UE may perform decryption processing on the data by using the corresponding Key.
  • FIG. 5 shows a schematic flow chart of a method of transmitting data according to another embodiment of the present invention.
  • the Key in the method shown in FIG. 5 may be the same as the Key in the method 300, or may be generated by the K eNB that the RAN device sends to the RAN device based on the CP Function for encryption between the UE and the RAN device and/or Or Key to integrity protection.
  • method 400 includes:
  • the UE sends an RRC message to the RAN device, where the RRC message includes the UE ID, the encrypted small data, and the encrypted Data Path ID.
  • S410 is the same as S310. To avoid repetition, details are not described herein.
  • S420 The RAN device checks whether the context information of the UE is saved according to the UE ID of the UE; if yes, decrypts the Data Path ID of the encryption process by using the Key of the UE, and obtains the address of the UP Function 1 according to the saved correspondence relationship.
  • UP-1 TEID after performing S370 and subsequent steps in method 300, if not, executing S430 and subsequent steps;
  • the RAN device sends a UE Information Request message to the RAN device that is the last time the UE is camped, and the UE Information Request message includes the UE ID and the Data Path ID of the encryption process.
  • the context information of the UE is saved in the RAN device where the UE last camped in S430.
  • the RAN device may determine, according to the identifier of the last resident RAN device in the UE ID, the last resident RAN device, if in S410
  • the RRC message separately carries the identifier of the RAN device that the UE last camped on, and the RAN device may be based on the UE that is separately carried in the RRC message.
  • the identity of the RAN device determines the RAN device that last camped on.
  • the RAN device that the UE last camped determines the legality of the UE, and when it is determined that the UE is legal, S450 is performed;
  • the RAN device that the UE last camped sends a UE Information Response message to the RAN device.
  • the UE Information Response message includes context information of the UE, and the context information of the UE includes a Data Path ID, an IP address of the UP Function 1, an UP 1-TEID, and a Key, which are processed by the RAN device that the UE last camped on.
  • the RAN device first performs the relevant step in the method 400 to obtain the context information of the UE from the RAN device that the UE last camped, and if it fails, according to the method.
  • the relevant step in 300 obtains the context information of the UE from the CP Function.
  • FIG. 6 shows a schematic flow chart of a method of transmitting data according to still another embodiment of the present invention.
  • method 500 includes:
  • the UE sends an RRC connection setup request (Connection Request) message to the RAN device, where the RRC Connection Request message carries the Small Data Indication and the UE ID;
  • the RAN device determines, according to the UE ID, whether the context information of the UE is saved, and sends an RRC Connection Setup message to the UE, where the RRC Connection Setup message carries indication information, where the indication information is used to indicate whether the RAN device is saved.
  • RRC Connection Setup message carries indication information, where the indication information is used to indicate whether the RAN device is saved.
  • the UE determines, according to the indication information, that the context information of the UE is not saved in the RAN device, and the UE sends a service request (Service Request) message to the CP Function.
  • Service Request Service Request
  • the Service Request message carries a Small Data Indication, and the Service Request message requests the CP Function to send the context information of the UE to the RAN device.
  • S540 The CP Function determines that the UE is legal, and sends context information of the UE to the RAN device.
  • the CP function performs the integrity verification on the service request message when the UE is verified for the validity of the UE.
  • the implementation manner is the same as that in the existing communication standard, and is not described here.
  • the context information of the UE includes: a Data Path ID processed by the CP Function decryption, an IP address of the UP Function 1, an UP 1-TEID, and a Key.
  • the context information of the UE includes: a Data Path ID processed by the CP Function decryption, an IP address of the UP Function 1, and an UP 1-TEID.
  • the RAN device saves the Key corresponding to the UE ID and the address of the UP Function 1 corresponding to the Data Path ID of the UE ID and the UP 1-TEID in the context information of the UE;
  • the RAN device sends security related context information to the UE.
  • the security related context information includes an encryption algorithm selected by the RAN device for data transmission between the RAN device and the UE.
  • the understanding of security-related context information in this embodiment is equally applicable to other embodiments of the present invention.
  • S570 The UE encrypts the data and the Data Path ID by using an encryption algorithm in S560, and sends the data to the RAN device through an RRC message.
  • the RAN device uses the same encryption algorithm to decrypt the encrypted Data Path ID, and determines the UP Function 1 according to the correspondence between the Data Path ID and the address of the UP Function 1 and the UP 1-TEID;
  • the S530 is specifically: the UE sends an RRC message to the RAN device, where the RRC message includes the Data Path ID of the encryption process, the address of the CP Function, and the UE ID; the RAN device sends the CP Function according to the address of the CP Function.
  • the UE Information Request message carries the Data Path ID and the UE ID of the encryption process.
  • the method for verifying the validity of the UE by the CP Function is the same as that in S340, and details are not described herein again.
  • the Session Establish Response message further includes context information of the UE, and after the UE receives the RRC message sent by the RAN device, saves the information included in the RRC message.
  • the context information of the UE illustrates a method of transmitting data in accordance with an embodiment of the present invention in such a scenario. As shown in FIG. 7, method 600 includes:
  • the UE determines, according to the indication information, that context information of the UE is not saved in the RAN device, and the UE sends an RRC message to the RAN device.
  • the RRC message carries the context information of the UE, which uses the public key of the RAN device for the encryption process, the UE ID, the Data Path ID that the UE performs encryption processing using the Key for data transmission, and the encryption using the Key for data transmission. Processed data, ground of CP Function site.
  • the RAN device decrypts context information of the UE by using a private key, acquires a key for data transmission, and performs a decryption operation.
  • the Data Path ID that performs encryption processing using the Key for data transmission and the data that is encrypted by using the Key for data transmission are decrypted;
  • the RAN device side stores the correspondence between the Data Path ID and the address of the UP Function 1.
  • the context information of the UE does not include the address information of the UP Function 1. That is, the UE does not send the address of the UP Function 1 to the address.
  • the RAN device decrypts the Data Path ID that performs encryption processing using the Key for data transmission, the UP Function 1 is determined according to the correspondence between the Data Path ID and the address of the UP Function 1.
  • the address of the UP Function 1 is included in the context information of the UE.
  • the RAN device may directly determine the UP Function 1 according to the address of the UP Function 1 in the context information of the UE.
  • the RAN device starts a timer corresponding to the context information of the UE. If the timer expires, the RAN device deletes the context information of the recorded UE, if the UE has uplink or downlink. Data, the RAN device will reset the Timer to ensure that the Timer will not time out during the uplink or downlink data transmission.
  • the RAN device when the UE's deactivation timer (Inactive Timer) times out, the RAN device sends a Release message to the UE.
  • the Release message carries a Resume identification ID and indication information allocated to the UE, and the indication information is used to indicate that the reason of the Release is a Suspend state of entering a small data transmission.
  • the data can be transmitted according to the data transmission method shown in FIG. As shown in FIG. 8, method 700 includes:
  • S710 The UE determines that the RAN device (or the cell) that is still in the Suspend state is located, and the Timer corresponding to the context information of the UE on the RAN device does not time out;
  • the UE needs to determine whether the RAN device (or cell) where the UE enters the Suspend state and the Timer corresponding to the context information of the UE on the RAN device time out. If the RAN device where the UE is still in the Suspend state and the Timer corresponding to the context information of the UE on the RAN device does not time out, perform S720;
  • the UE sends an RRC connection recovery request (Connection Resume Request) message to the RAN device, where the RRC Resume Request message carries a Resume ID allocated by the RAN device to the UE, and the RRC Resume Request message is used to request the RAN device to restore the context information of the UE. ;
  • the RAN device sends an RRC Connection Resume message to the UE, to notify the UE that the context information of the UE has been restored.
  • the UE sends an RRC connection recovery complete (Connection Resume Complete) message to the RAN device, where the Connection Resume Complete message carries the encrypted data and the Data Path ID;
  • the data transmission can be implemented by executing S530-590 in the method 500. .
  • the CP Function in the process of establishing a PDU session, may be allocated to the UE by the CP Function.
  • the method of establishing a PDU Session is as shown in FIG.
  • method 900 includes:
  • the CP Function saves information used for small data transmission
  • the information for small data transmission includes: an address of UP Function 1 and a TEID (UP 1-TEID) allocated by the UP Function 1 to the UE.
  • a TEID UP 1-TEID
  • the CP Function sends a message to the RAN device by using an interface between the CP Function and the RAN device.
  • the message sent by the CP Function to the RAN device includes a session establishment response (Session Establish Response) message sent by the CP Function to the UE, where the Session Establish Response message carries the context information of the UE, where the context information of the UE includes: ID, key Key, and uplink path information for small data transmission.
  • the uplink path information for small data transmission includes: an address of UP Function 1 and an UP-1 TEID.
  • the uplink path information used for the small data transmission is included in a specific container, or the uplink path information used for the small data transmission includes indication information, where the indication information indicates that the uplink path information is Uplink path information for small data transmission.
  • the context information of the UE includes: a UE ID, a key Key, and an UP Function 1 Address and IP address of UP Function 2.
  • the RAN in the process of establishing the DRB, the RAN carries the indication information in the reconfiguration message, indicating that the established DRB is used for small data transmission, or the indication information is carried in the Session Establish Response message in S730, indicating the DRB established in the S740. It is a DRB for small data transmission, whereby the UE can determine that the DRB is a DRB for small data transmission according to the indication information.
  • the RRC Connection Release message carries the Resume ID assigned by the RAN device to the UE and the indication information indicating that the release reason is the Suspend state of entering the small data transmission.
  • the RAN device saves the correspondence between the DRB and the uplink path information for small data transmission, and the UE saves the UE ID, Key, and the DRB.
  • the UE may perform data transmission with the network.
  • a method for transmitting data according to an embodiment of the present invention will be described in detail below with reference to FIG. 10, and FIG. 10 is a further implementation according to the present invention.
  • the method 900 includes:
  • the UE determines that the RAN device (or cell) that is still in the Suspend state, and the Timer corresponding to the context information of the UE on the RAN device does not time out;
  • the RAN device restores a signaling connection between the RAN device and the UE and a DRB for small data transmission;
  • the UE sends an RRC Connection Resume Request message to the RAN device, where the RRC Resume Request message carries the Resume ID allocated by the RAN device to the UE, and the RRC Resume Request message is used to request the RAN device to resume the signaling connection with the UE and The DRB for small data transmission; the RAN device then sends an RRC Connection Resume message to the UE, informing the UE that the signaling connection with the UE and the DRB for small data transmission have been restored, after which the UE sends an RRC Connection Resume Complete message to the RAN device. .
  • the UE sends small data to the RAN device by using a DRB for small data transmission.
  • the UE obtains uplink path information corresponding to the DRB for small data transmission according to the context information of the UE.
  • UP Function 2 sends the data in the received GTP PDU to the corresponding APP server (Sever), and then APP Sever sends a response message to UP Function 2 (for example, FIG. 9 ACK), UP Function 2 sends a response message to UP Function 1 after receiving the response message, UP Function 1 acquires the address of the saved RAN device and the RAN TEID, and generates a downlink GTP PDU to be sent to the RAN device, and the RAN device receives After the GTP PDU sent by the UP Function 1, the UE ID is determined according to the RAN TEID, and the key corresponding to the UE is obtained according to the UE ID, and the acquired key is used to encrypt the data in the GTP PDU and then used for small data transmission.
  • the DRB sends the data to the UE, and the UE can decrypt the data by using the corresponding Key.
  • Figure 11 illustrates a method of transmitting data in accordance with yet another embodiment of the present invention. This method is applicable to the scenario in which the PDU Session is established by the method shown in FIG. As shown in FIG. 11, the method 1000 includes:
  • S1010 The UE in the Suspend state determines that the Timer corresponding to the context information of the UE is not in the RAN device (or cell) where the Suspend state is not entered, or the RAN device where the UE enters the Suspend state.
  • S1020 The UE sends a Service Request message to the CP Function.
  • the Service Request message carries a Small Data Indication, and the Service Request message requests the CP Function to send the context information of the UE to the RAN device.
  • S1030 The CP Function acquires context information used for small data transmission.
  • Context information for small data transmission includes: Key of the UE, uplink path information, where the uplink path information includes an address of the UP Function 1 and an UP 1-TEID;
  • the CP Function sends an initial context message to the RAN device, where the initial context message includes context information and small data indication information for small data transmission.
  • S1050 The RAN device saves context information used for small data transmission
  • the RAN device sends an RRC Security Mode Command message to the UE, where the RRC Security Mode Command message carries security related context information of the UE.
  • method 2000 includes:
  • UP Function 1 receives downlink data, and determines whether the downlink data is small data;
  • the UP Function 2 receives the data sent by the APP Sever, the destination address of the data is the address of the UE, and the UP Function 2 sends the data to the UP Function 1.
  • the UP Function 1 can determine whether the data is small according to the size of the data sent by the APP.
  • the data, or the tag carried when the data is sent by the APP determines whether the downlink data is small data.
  • UP Function 1 determines that the downlink data is small data, and the UP Function 1 acquires the IP address and the RAN TEID of the RAN device corresponding to the UE. If yes, S2110 is executed. Otherwise execute S2030;
  • the UP function 1 sends a Downlink Data Notification message to the CP Function, where the Downlink Data Notification message carries a Small Data Indication, which is used to notify the CP Function of the downlink data to be received by the UE.
  • the CP Function sends a paging (Paging) message to the UE, where the Paging message carries a Small Data Indication;
  • S2050 The UE sends a Service Request message to the CP Function, where the Service Request message carries a Small Data Indication, and the request enters a connected state.
  • the request enters the connection state, and the CP Function only sends the uplink path information to the RAN device, and the RAN device allocates the TEID to the UE according to the received uplink path information.
  • the CP Function sends a Data Path Request message to the RAN device, where the Data Path Request message is used to request the RAN device to allocate a TEID for the downlink data transmission, where the Data Path Request message includes: Small Data Indication , UE ID, Data Path ID, address of UP Function 1, and UP 1-TEID;
  • the RAN device saves the Key corresponding to the UE ID and the IP address and UP 1-TEID of the UP Function 1 corresponding to the Data Path ID of the UE IE in the context information of the UE;
  • the RAN device sends a data path response (Data Path Response) message to the CP Function, where the Data Path Response message carries the address of the RAN device and the RAN TEID;
  • Data Path Response data path response
  • S2090 The CP Function sends a response (ACK) message to the UE for the Service Request message in S2050, to notify the UE that the message sent in S2050 has been received.
  • ACK response
  • the CP Function sends a Downlink Data Path message to the UP Function 1, and the Downlink Data Path message carries the address of the RAN device and the RAN TEID;
  • the UP Function 1 generates a downlink GTP PDU according to the address of the RAN device and the RAN TEID, and sends the GTP PDU to the RAN device.
  • the RAN device determines the UE ID according to the RAN TEID, and performs encryption processing on the downlink data by using the Key corresponding to the UE.
  • the RAN device sends an RRC message to the UE, where the RRC message carries the encrypted downlink data.
  • the UE sends the UE ID, the encrypted processed small data (ACK), and the encrypted processed Data Path ID to the RAN through the RRC message; after that, the RAN device may acquire the Key of the UE by using the method 300 or the method 400 above. Decrypting the encrypted Data Path ID by using the Key of the UE, obtaining the address of the UP Function 1 and the UP 1-TEID according to the saved correspondence, and generating an uplink GTP PDU according to the method in the method 300, and sending the GTP PDU Give UP Function 1 so that UP Function 1 sends the data to UP Function 2.
  • the Data Path Request is not included in the Data Path Request in S2060, and in S2070, the RAN device is in the context of the UE.
  • the information stores the correspondence between the DRB and the uplink path information.
  • the UE transmits the encrypted data to the RAN device through the DRB.
  • the RAN device 10 includes:
  • the transceiver unit 11 is configured to receive a first message sent by the user equipment UE, where the first message includes data and a first identifier;
  • the processing unit 12 is configured to determine transmission path information of the data according to the first identifier.
  • the transceiver unit 11 is further configured to forward the data according to the transmission path information of the data.
  • the RAN device may determine the transmission path information of the data of the UE by using the first identifier sent by the user equipment UE to transmit data, and forward the data of the UE according to the path transmission information, thereby being idle.
  • the UE has data transmission requirements, it is not required to reconstruct the user plane connection between the UE and the RAN device, the signaling connection between the RAN device and the control plane device in the core network device, and the user in the RAN device and the core network device.
  • User plane connection between device devices which can reduce signaling overhead during data transmission and improve data transmission. effectiveness.
  • the transceiver unit 11 is specifically configured to: receive the first message sent by the UE, where the first message includes the data encrypted by the first key group, the first The first identifier of the key group, the identifier of the UE, and the identifier of the core network device; the second message is sent to the core network device according to the identifier of the core network device, where the second message includes the UE Identifying the first identifier that is encrypted by the first key group, so that the core network device verifies that the UE is legal according to the identifier of the UE and the first identifier encrypted by the first key group.
  • the RAN device sends context information of the UE, where the context information of the UE includes the first key group, the first identifier, and transmission path information corresponding to the first identifier;
  • the processing unit 12 is configured to determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the processing unit 12 is further configured to: determine, according to the identifier of the UE, whether the RAN device saves context information of the UE;
  • the transceiver unit 11 is further configured to: when the processing unit determines that the RAN device does not save the context information of the UE, send the second message to the core network device.
  • the transceiver unit 11 is further configured to: receive an identifier of the UE sent by the UE; and send feedback to the UE.
  • Information the feedback information is used to indicate that the processing unit determines, according to the identifier of the UE, whether the RAN device saves the context information of the UE, so that the UE indicates that the RAN device does not save the context of the UE.
  • the core network device is requested to send the context information of the UE to the RAN device, where the context information of the UE includes the first identifier and the transmission path information corresponding to the first identifier.
  • the processing unit 12 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the transceiver unit 11 is further configured to: receive an identifier of the UE sent by the UE; and send feedback to the UE.
  • the feedback information is used to indicate that the processing unit determines, according to the identifier of the UE, whether the RAN device saves the context information of the UE, and when the feedback information indicates that the RAN device does not save the context information of the UE, receiving Receiving a third message sent by the UE, where the third message includes an identifier of the UE, an identifier of the second key group encrypted and processed by the second key group, and an identifier of the core network device; according to the identifier of the core network device, Core network device sends the first And a fourth message, where the fourth message includes the identifier of the UE and the first identifier that is encrypted by the second key group, so that the core network device performs encryption according to the identifier of the UE and the second key group.
  • the first identifier is sent to the RAN device to send the context information of the UE, and the context information of the UE includes the first identifier and the transmission path information corresponding to the first identifier.
  • the processing unit 12 is specifically configured to determine, as the transmission path information of the data, the transmission path information corresponding to the first identifier.
  • the transceiver unit 11 is specifically configured to: receive the first message sent by the UE, where the first message includes the data encrypted by the first key group, the first The first identifier of the key group, the identifier of the UE, and the identifier of the second RAN device, where the second RAN device is the RAN device that is determined by the UE and stores context information of the UE; when the processing unit 12 And determining, according to the identifier of the UE, that the RAN device does not save the context information of the UE, and sends a fifth message to the second RAN device according to the identifier of the second RAN device, where the fifth message includes the identifier of the UE and the Decrypting the first identifier by the first key group, so that the second RAN device determines, according to the identifier of the UE and the first identifier that is encrypted by the first key group, that the UE is legally forwarded to the RAN device. Transmitting the context information of the UE,
  • the processing unit 12 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the transceiver unit 11 is specifically configured to: receive the first message sent by the UE, where the first message includes the data encrypted by the first key group, the first The first identifier of the UE that has been processed by the key group and the context information of the UE that has been encrypted by the public key of the RAN device, and the first key group is included in the context information of the UE;
  • the transceiver unit 11 is further configured to: receive the identifier of the UE sent by the UE, and send feedback information to the UE, where the sending and receiving unit 11 receives the first message sent by the UE, where the feedback information is used to indicate the
  • the processing unit 12 determines, according to the identifier of the UE, whether the RAN device saves the judgment result of the context information of the UE, so that the UE uses the RAN device when the feedback information indicates that the RAN device does not save the context information of the UE.
  • the public key encrypts the context of the UE.
  • the processing unit 12 is specifically configured to: adopt a private key corresponding to the public key to Performing a decryption process on the context information of the UE, acquiring the first key group included in the context information of the UE, and decrypting the first identifier encrypted by the first key group using the first key group, Obtaining the first identifier; determining transmission path information of the data according to the correspondence between the first identifier and the transmission path information.
  • the context information of the UE is saved in the RAN device and the UE, where the context information of the UE includes a first key group, the first identifier, and the first identifier.
  • the transceiver unit 11 is further configured to: receive a sixth message sent by the UE, where the sixth message is used to request the RAN device to recover a signaling connection between the RAN device and the UE; sending a seventh message to the UE, the seventh message is used to indicate that the signaling connection between the RAN device and the UE has been restored, so that the UE is receiving After the seventh message, encrypting the data and the first identifier by using the first key group;
  • the processing unit 12 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the processing unit 12 is further configured to: acquire a second identifier of the UE, where the second identifier is used.
  • the RAN device receives the downlink data, determining that the destination receiving device of the downlink data is the UE; determining, according to the transmission path information of the data, a next hop forwarding device of the data;
  • the transceiver unit 11 is specifically configured to: send the data and the second identifier to the next hop forwarding device.
  • the transmission path information of the data includes: address information of the next hop forwarding device of the data; or address information of the next hop forwarding device of the data and the next The third identifier that is allocated by the one-hop forwarding device to the UE, and the third identifier is used by the next hop forwarding device to determine that the data belongs to the UE after receiving the data sent by the RAN device.
  • the RAN device 10 may correspond to the RAN device in the method of the embodiment of the present invention, and each unit in the RAN device 10, ie, the module and the other operations and/or functions described above, respectively, in order to implement the method 100 to the method 700
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • FIG. 14 shows a user equipment according to an embodiment of the present invention.
  • the user equipment 20 includes:
  • the processing unit 21 is configured to determine a first identifier corresponding to the data, where the first identifier is used by the first radio access network RAN device to determine transmission path information of the data according to the first identifier;
  • the transceiver unit 22 is configured to send a first message to the first RAN device, where the first message includes the data and the first identifier.
  • the first identity is sent to the first RAN device, so that the first RAN device acquires the data transmission of the UE according to the first identifier.
  • Path information whereby when the UE in the idle state has a data transmission requirement, there is no need to reconstruct a user plane connection between the UE and the RAN device, a signaling connection between the RAN device and a control plane device in the core network device, and The user plane connection between the RAN device and the user plane device in the core network device can reduce the signaling overhead in the data transmission process and improve the efficiency of transmitting data.
  • the processing unit 21 is further configured to: perform encryption processing on the data and the first identifier by using a first key group;
  • the transceiver unit 22 is specifically configured to: send a first message to the first RAN device, where the first message includes the data that the UE encrypts and processes using the first key group, and the UE uses the first secret Decrypting the first identifier, the identifier of the UE, and the identifier of the core network device, so that the first RAN device uses the first key according to the identifier of the UE, the identifier of the core network device, and the UE.
  • the first identifier that is processed by the group is encrypted, and the context information of the UE is obtained.
  • the context information of the UE includes the first key group, the first identifier, and the transmission path information corresponding to the first identifier.
  • the transceiver unit 22 is further configured to: send the identifier of the UE to the first RAN device;
  • the feedback information sent by the first RAN device the feedback information is used to indicate that the first RAN device determines, according to the identifier of the UE, whether the context information of the UE is saved, and the context information of the UE includes the first identifier and The first identifier identifies the transmission path information.
  • the second message is sent to the core network device, where the second message is used to request the core network device to The first RAN device sends context information of the UE.
  • the transceiver unit 22 is further configured to: send the identifier of the UE to the first RAN device; Feedback information sent by the first RAN device, where the feedback information is used to indicate the first Determining, by the RAN device, whether the context information of the UE is saved according to the identifier of the UE; and when the feedback information indicates that the first RAN device does not save the context information of the UE, sending a third message to the first RAN device, The third message includes the identifier of the UE, the first identifier that is encrypted by the second key group, and the identifier of the core network device, so that the first RAN device is configured according to the identifier of the UE, the second key group.
  • the cryptographically processed first identifier and the identifier of the core network device obtain the context information of the UE, and the context information of the UE includes the first identifier and the transmission path information
  • the processing unit 21 is further configured to: perform encryption processing on the data and the first identifier by using a first key group;
  • the transceiver unit 22 is specifically configured to: send a first message to the first RAN device, where the first message includes the data that the UE encrypts and processes using the first key group, and the UE uses the first secret
  • the device acquires the context information of the UE according to the identifier of the UE, the first identifier that is encrypted by the UE by using the first key group, and the identifier of the second RAN device, where the context information of the UE includes the first a key group, the first identifier, and transmission path information corresponding to the first identifier.
  • the transceiver unit 22 is further configured to: send the identifier of the UE to the first RAN device, and receive feedback information sent by the first RAN device, where the feedback information is used to indicate the first
  • the RAN device determines, according to the identity of the UE, whether the determination result of the context information of the UE is saved.
  • the processing unit 21 is further configured to: when the feedback information indicates that the first RAN device does not save context information of the UE, encrypt a context of the UE by using a public key of the first RAN device, a context of the UE
  • the information includes a first key group
  • the transceiver unit 22 is further configured to send a first message to the first RAN device, where the first message includes the data that is processed by the processing unit 21 using the first key group, and the UE uses the first secret.
  • the first identifier of the key group encryption process and the processing unit encrypt the processed context information of the UE by using the public key of the first RAN device, so that the first RAN device acquires the information according to the context information of the UE.
  • the transmission path information of the data is further configured to send a first message to the first RAN device, where the first message includes the data that is processed by the processing unit 21 using the first key group, and the UE uses the first secret.
  • the first identifier of the key group encryption process and the processing unit encrypt the processed context information of the UE by using the public key of the first RAN device, so that the first RAN device acquires the information according to the context information of the UE.
  • the transmission path information of the data is further configured to send a first message to the first RAN device
  • the context information of the UE is saved in the first RAN device and the UE, and the context information of the UE includes the first key group and the first identifier.
  • the transmission path information corresponding to the first identifier before the transceiver unit 22 sends the first message to the first RAN device, the transceiver unit 22 is further configured to: send a fourth message to the first RAN device, where The fourth message is used to request the first RAN device to restore the connection between the UE and the first RAN device, and receive a fifth message sent by the first RAN device, where the fifth message is used to indicate the UE and the first message. The connection between the RAN devices has been restored.
  • the transceiver unit 22 sends a first message to the first RAN device, specifically: sending the first message to the first RAN device by using the connection.
  • the transceiver unit 22 before the sending and receiving unit 22 sends the fourth message to the first RAN device, the transceiver unit 22 is further configured to send a sixth message to the first RAN device, where the sixth message is sent.
  • the message is used to indicate that the first RAN device sets the UE to a suspended state, and receives a seventh message sent by the first RAN device, where the seventh message is used to indicate that the first RAN device has set the UE to be suspended. status.
  • the processing unit 21 is further configured to determine whether the moving range of the UE in the preset time period is within a preset range.
  • the transceiver unit 22 is configured to send the sixth message to the first RAN device when the processing unit 21 determines that the mobile range of the UE within a preset time period is within a preset range.
  • the transmission path information of the data includes: address information of a next hop forwarding device of the data, or address information of a next hop forwarding device of the data and the next The third identifier that is allocated by the one-hop forwarding device to the UE, and the third identifier is used by the next hop forwarding device to determine that the data belongs to the UE after receiving the data sent by the first RAN device.
  • the user equipment 20 may correspond to the user equipment in the method of the embodiment of the present invention, and each unit in the user equipment 20, that is, the module and the other operations and/or functions described above are respectively implemented to implement the method 100 to the method 700.
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • FIG. 15 is a RAN device according to another embodiment of the present invention. As shown in FIG. 15, the RAN device 30 includes:
  • the transceiver unit 31 is configured to receive data that is sent by the user equipment UE by using the data radio bearer DRB.
  • the processing unit 32 is configured to determine transmission path information of the data according to the correspondence between the DRB and the transmission path information;
  • the processing unit 32 is further configured to acquire a first identifier of the UE, where the first identifier is used by the RAN device to determine, when receiving downlink data, that the destination receiving device of the downlink data is the UE;
  • the transceiver unit 31 is further configured to send the data and the first identifier of the UE to the next hop forwarding device of the data according to the transmission path information of the data.
  • the RAN device sends the first identifier of the UE to the next hop forwarding device while transmitting the data to the next hop forwarding device of the data of the received UE, because the first identifier can
  • the RAN device determines the destination receiving device of the downlink data and the UE, thereby saving signaling overhead in the data transmission process and improving the efficiency of data transmission.
  • the context information of the UE is saved in the RAN device and the UE, where the context information of the UE includes a key group, the first identifier, and a corresponding identifier corresponding to the first identifier.
  • the transceiver unit 31 is further configured to: receive a first message sent by the UE, where the first message is used to request the RAN device to recover the RAN device and the UE An inter-signaling connection and the DRB; sending a second message to the UE, the second message indicating a signaling connection between the RAN device and the UE and the DRB has been restored.
  • the transceiver unit 31 is further configured to: receive a third message sent by the core network device, where the third message includes the UE.
  • Context information the context information of the UE includes transmission path information corresponding to the DRB;
  • the processing unit 32 is further configured to establish, according to context information of the UE, the DRB between the UE and the UE;
  • the transceiver unit 31 is further configured to receive data sent by the UE by using the DRB.
  • the transmission path information of the data includes: address information of a next hop forwarding device of the data; or address information of a next hop forwarding device of the data and the next And a second identifier that is allocated by the hopping device to the UE, where the second identifier is used by the next hop forwarding device to determine that the data belongs to the UE after receiving the data sent by the RAN device.
  • the RAN device 30 may correspond to the RAN device in the method of the embodiment of the present invention, and each unit in the RAN device 30, ie, the module and the other operations and/or functions described above, respectively, in order to implement the method 700 to the method 2000
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • FIG. 16 shows a user equipment according to another embodiment of the present invention.
  • the user equipment 40 includes:
  • the sending unit 41 is configured to send, to the radio access network RAN device, a first message, where the first message is used to request the RAN device to set the UE to a suspended state;
  • the receiving unit 42 is configured to receive a second message sent by the RAN device, where the second message is used to indicate that the RAN device has set the UE to a suspended state, so that the UE requests the data when sending the data to the RAN device.
  • the RAN device restores the UE's connection with the RAN device and transmits data to the RAN device over the connection.
  • the user equipment UE requests the RAN device to set the UE to the suspended state, so that when the UE needs to transmit data, the UE may request the RAN device to directly restore the connection between the RAN device and the UE, thereby saving the letter. Increase overhead and increase the efficiency of data transmission.
  • the user equipment 40 further includes:
  • the processing unit 43 is configured to determine whether the moving range of the UE in the preset time period is within a preset range
  • the sending unit 41 is specifically configured to send the first message to the RAN device when the processing unit 43 determines that the mobile range of the UE within a preset time range is within a preset range.
  • the user equipment 40 may correspond to the user equipment in the method of the embodiment of the present invention, and the modules and the other operations and/or functions in the user equipment 40 are respectively implemented to implement the method 700 to the method 2000.
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • FIG. 18 is a schematic block diagram of a RAN device according to still another embodiment of the present invention.
  • the RAN device 100 includes a processor 110 and a transceiver 120.
  • the processor 110 and the transceiver 120 are connected to each other.
  • the RAN device 100 further includes a memory 130 coupled to the processor 110.
  • the RAN device 100 includes a bus system 140.
  • the processor 110, the memory 130, and the transceiver 120 may be connected by a bus system 140.
  • the memory 130 may be used to store instructions for executing the instructions stored by the memory 130 to control the transceiver 120 to transmit information or signal,
  • the transceiver 120 is configured to receive a first message sent by the user equipment UE, where the first message includes data and a first identifier;
  • the processor 110 is configured to determine transmission path information of the data according to the first identifier.
  • the transceiver 120 is further configured to forward the data according to the transmission path information of the data.
  • the RAN device may determine the transmission path information of the data of the UE by using the first identifier sent by the user equipment UE to transmit data, and forward the data of the UE according to the path transmission information, thereby being idle.
  • the UE has data transmission requirements, it can Reduce signaling overhead during data transmission and improve the efficiency of data transmission.
  • the transceiver 120 is specifically configured to: receive the first message sent by the UE, where the first message includes the first key group encrypted data, the first key The first identifier of the group, the identifier of the UE, and the identifier of the core network device; the second message is sent to the core network device according to the identifier of the core network device, where the second message includes the identifier of the UE and The first key group encrypts the first identifier, so that the core network device verifies the UE according to the identifier of the UE and the first identifier encrypted by the first key group, and then sends the UE to the RAN.
  • the device sends the context information of the UE, where the context information of the UE includes the first key group, the first identifier, and transmission path information corresponding to the first identifier;
  • the processor 110 is configured to determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the processor 110 is further configured to: determine, according to the identifier of the UE, whether the RAN device saves context information of the UE;
  • the transceiver 120 is further configured to: when the processor 110 determines that the RAN device does not save the context information of the UE, send the second message to the core network device.
  • the transceiver 120 before the transceiver 120 receives the first message sent by the UE, the transceiver 120 is further configured to: receive an identifier of the UE sent by the UE, and send feedback information to the UE, where The feedback information is used to indicate that the processing unit determines, according to the identifier of the UE, whether the RAN device saves the context information of the UE, so that the UE, when the feedback information indicates that the RAN device does not save the context information of the UE, And requesting the core network device to send the context information of the UE to the RAN device, where the context information of the UE includes the first identifier and the transmission path information corresponding to the first identifier;
  • the processor 110 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the transceiver 120 before the transceiver 120 receives the first message sent by the UE, the transceiver 120 is further configured to: receive an identifier of the UE sent by the UE, and send feedback information to the UE, where The feedback information is used to indicate that the processing unit determines, according to the identifier of the UE, whether the RAN device saves the context information of the UE, and when the feedback information indicates that the RAN device does not save the context information of the UE, receiving and receiving the a third message sent by the UE, where the third message includes the identifier of the UE, the first identifier encrypted by the second key group, and the identifier of the core network device; and the core network device according to the identifier of the core network device
  • the device sends a fourth message, The fourth message includes the identifier of the UE and the first identifier encrypted by the second key group, so that the core network device encrypts the first identifier according to the identifier of the UE and the second key
  • the processor 110 is specifically configured to determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the transceiver 120 is specifically configured to: receive the first message sent by the UE, where the first message includes the first key group encrypted data, the first key The first identifier of the UE, the identifier of the UE, and the identifier of the second RAN device, where the second RAN device is the RAN device that is determined by the UE and stores context information of the UE; when the processor 110 is configured according to the The identifier of the UE determines that the RAN device does not save the context information of the UE, and sends a fifth message to the second RAN device according to the identifier of the second RAN device, where the fifth message includes the identifier of the UE and the first Decrypting the first identifier to the RAN device, so that the second RAN device determines that the UE is legal according to the identifier of the UE and the first identifier that is encrypted by the first key group, and sends the first identifier to the RAN device. Context information of the UE, where
  • the processor 110 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the transceiver 120 is specifically configured to: receive the first message sent by the UE, where the first message includes the first key group encrypted data, the first key The first identifier of the UE that has been encrypted by the group and the context information of the UE that has been processed by the public key of the RAN device, and the first key group is included in the context information of the UE;
  • the transceiver 120 Before the transceiver 120 receives the first message sent by the UE, the transceiver 120 is further configured to: receive an identifier of the UE sent by the UE, and send feedback information to the UE, where the feedback information is used to indicate the
  • the processor 110 determines, according to the identifier of the UE, whether the RAN device saves the determination result of the context information of the UE, so that the UE uses the RAN device when the feedback information indicates that the RAN device does not save the context information of the UE.
  • the public key encrypts the context of the UE.
  • the processor 110 is specifically configured to: decrypt the context information of the UE by using a private key corresponding to the public key, and obtain the first information included in the context information of the UE. Key group; decrypting the first identifier encrypted by the first key group using the first key group to obtain the first identifier; determining according to the correspondence between the first identifier and the transmission path information The transmission path information of the data.
  • the context information of the UE is saved in the RAN device and the UE, where the context information of the UE includes a first key group, the first identifier, and a corresponding identifier corresponding to the first identifier.
  • the transceiver 120 is further configured to: receive a sixth message sent by the UE, where the sixth message is used to request the RAN device to recover the RAN a signaling connection between the device and the UE; sending a seventh message to the UE, the seventh message is used to indicate that the signaling connection between the RAN device and the UE has been restored, so that the UE receives the After the seventh message, the first key group is used to encrypt the data and the first identifier;
  • the processor 110 is specifically configured to: determine the transmission path information corresponding to the first identifier as the transmission path information of the data.
  • the processor 110 is further configured to: acquire a second identifier of the UE, where the second identifier is used by the When receiving the downlink data, the RAN device determines that the destination receiving device of the downlink data is the UE; and determines a next hop forwarding device of the data according to the transmission path information of the data;
  • the transceiver 120 is specifically configured to: send the data and the second identifier to the next hop forwarding device.
  • the transmission path information of the data includes: address information of a next hop forwarding device of the data; or address information of a next hop forwarding device of the data and the next hop
  • the RAN device 100 may correspond to the RAN device in the method of the embodiment of the present invention, and each unit in the RAN device 100, ie, the module and the other operations and/or functions described above, respectively, in order to implement the method 100 to the method 700
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • the RAN device may determine the transmission path information of the data of the UE by using the first identifier sent by the user equipment UE to transmit data, and forward the data of the UE according to the path transmission information, thereby being in an idle state.
  • the signaling overhead in the data transmission process can be reduced, and the efficiency of transmitting data is improved.
  • the transceiver 120 is configured to receive data that is sent by the user equipment UE by using a data radio bearer DRB.
  • the processor 110 is configured to determine transmission path information of the data according to the correspondence between the DRB and the transmission path information;
  • the processor 110 is configured to acquire a first identifier of the UE, where the first identifier is used by the RAN device to determine, when receiving downlink data, that the destination receiving device of the downlink data is the UE;
  • the transceiver 120 is further configured to send the data and the first identifier of the UE to the next hop forwarding device of the data according to the transmission path information of the data.
  • the RAN device sends the first identifier of the UE to the next hop forwarding device while transmitting the data to the next hop forwarding device of the data of the received UE, because the first identifier can
  • the RAN device determines the destination receiving device of the downlink data and the UE, thereby saving signaling overhead in the data transmission process and improving the efficiency of data transmission.
  • the context information of the UE is saved in the RAN device and the UE, where the context information of the UE includes a key group, the first identifier, and a transmission path corresponding to the first identifier.
  • the transceiver 120 before the transceiver 120 receives the data packet sent by the UE, the transceiver 120 is further configured to: receive a third message sent by the core network device, where the third message includes the context of the UE.
  • the context information of the UE includes transmission path information corresponding to the DRB;
  • the processor 110 is further configured to establish the DRB with the UE according to the context information of the UE.
  • the transceiver 120 is further configured to receive data sent by the UE by using the DRB.
  • the transmission path information of the data includes: address information of a next hop forwarding device of the data; or address information of a next hop forwarding device of the data and the next hop
  • the second identifier assigned by the sending device to the UE, where the second identifier is used by the next hop forwarding device After receiving the data sent by the RAN device, it is determined that the data belongs to the UE.
  • the RAN device 100 may correspond to the RAN device in the method of the embodiment of the present invention, and each unit in the RAN device 100, ie, the module and the other operations and/or functions described above, respectively, in order to implement the method 800 to the method 2000
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • the RAN device sends the first identifier of the UE to the next hop forwarding device while the data is sent to the next hop forwarding device of the data of the received UE, because the first identifier can be used for
  • the RAN device determines the destination receiving device of the downlink data and the UE, thereby saving signaling overhead in the data transmission process and improving the efficiency of data transmission.
  • FIG. 19 is a schematic block diagram of a user equipment according to another embodiment of the present invention.
  • the user equipment 200 includes a processor 210 and a transceiver 220.
  • the processor 210 and the transceiver 220 are connected to each other.
  • the user equipment 200 further includes a memory 230 coupled to the processor 210.
  • the user equipment 200 includes a bus system 240.
  • the processor 210, the memory 230, and the transceiver 220 may be connected by a bus system 240.
  • the memory 230 may be used to store instructions for executing the instructions stored by the memory 230 to control the transceiver 220 to transmit information or signal,
  • the processor 210 is configured to determine a first identifier corresponding to the data, where the first identifier is used by the first radio access network RAN device to determine transmission path information of the data according to the first identifier.
  • the transceiver 220 is configured to send a first message to the first RAN device, where the first message includes the data and the first identifier.
  • the first identity is sent to the first RAN device, so that the first RAN device acquires the data transmission of the UE according to the first identifier.
  • the path information thus, when the UE in the idle state has a data transmission requirement, the signaling overhead in the data transmission process can be reduced, and the efficiency of transmitting the data is improved.
  • the processor 210 is further configured to: encrypt the data and the first identifier by using a first key group;
  • the transceiver 220 is specifically configured to: send a first message to the first RAN device, where the first message includes the data that is encrypted by the UE by using the first key group, and the UE uses the first secret
  • the first identifier of the UE, the identifier of the UE, and the identifier of the core network device so that the first RAN device is configured according to the identifier of the UE, the identifier of the core network device, and the UE.
  • Acquiring the first identifier of the first key group to obtain the context information of the UE, where the context information of the UE includes the first key group, the first identifier, and the transmission corresponding to the first identifier Path information.
  • the transceiver 220 before the transceiver 220 sends the first message to the first RAN device, the transceiver 220 is further configured to: send the identifier of the UE to the first RAN device; receive the first The feedback information sent by the RAN device, the feedback information is used to indicate, by the first RAN device, whether the context information of the UE is saved according to the identifier of the UE, where the context information of the UE includes the first identifier and the Identifying the corresponding transmission path information; when the feedback information indicates that the first RAN device does not save the context information of the UE, sending a second message to the core network device, where the second message is used to request the core network device to A RAN device sends context information of the UE.
  • the transceiver 220 before the transceiver 220 sends the first message to the first RAN device, the transceiver 220 is further configured to: send the identifier of the UE to the first RAN device; receive the first a feedback information sent by the RAN device, where the feedback information is used to indicate that the first RAN device determines, according to the identifier of the UE, whether the context information of the UE is saved; when the feedback information indicates that the first RAN device does not save the Sending a third message to the first RAN device, where the third message includes the identifier of the UE, the first identifier encrypted by the second key group, and the identifier of the core network device, to facilitate
  • the first RAN device acquires context information of the UE according to the identifier of the UE, the first identifier that is encrypted by the second key group, and the identifier of the core network device, where the context information of the UE includes the first identifier. And transmission path information corresponding to the first identifier.
  • the processor 210 is further configured to: encrypt the data and the first identifier by using a first key group;
  • the transceiver 220 is specifically configured to: send a first message to the first RAN device, where the first message includes the data that is encrypted by the UE by using the first key group, and the UE uses the first secret
  • the device acquires the context information of the UE according to the identifier of the UE, the first identifier that is encrypted by the UE by using the first key group, and the identifier of the second RAN device, where the context information of the UE includes the first a key group, the first identifier, and transmission path information corresponding to the first identifier.
  • the transceiver 220 is further configured to: send the identifier of the UE to the first RAN device, and receive feedback information sent by the first RAN device, where the feedback information is used to indicate the first RAN.
  • the device determines, according to the identifier of the UE, whether a determination result of the context information of the UE is saved.
  • the processor 210 is further configured to: when the feedback information indicates that the first RAN device does not save context information of the UE, encrypt a context of the UE by using a public key of the first RAN device, a context of the UE
  • the information includes a first key group
  • the transceiver 220 is further configured to send a first message to the first RAN device, where the first message includes the data that is processed by the processor 210 using the first key group, and the UE uses the first secret
  • the first identifier identified by the key group encryption and the processing unit encrypts the processed context information of the UE by using the public key of the first RAN device, so that the first RAN device acquires the data according to the context information of the UE. Transmission path information.
  • the context information of the UE is saved in the first RAN device and the UE, where the context information of the UE includes a first key group, the first identifier, and the first identifier.
  • the transceiver 220 is further configured to: send a fourth message to the first RAN device, where the fourth message is used for requesting
  • the first RAN device restores the connection between the UE and the first RAN device, and receives a fifth message sent by the first RAN device, where the fifth message is used to indicate a connection between the UE and the first RAN device. Has been restored.
  • the transceiver 220 sends the first message to the first RAN device, specifically: sending the first message to the first RAN device by using the connection.
  • the transceiver 220 before the transceiver 220 sends the fourth message to the first RAN device, the transceiver 220 is further configured to: send a sixth message to the first RAN device, where the sixth message is used.
  • the first RAN device is configured to set the UE to a suspended state, and the seventh message sent by the first RAN device is received, where the seventh message is used to indicate that the first RAN device has set the UE to a suspended state.
  • the processor 210 is further configured to determine whether a range of motion of the UE in a preset time period is within a preset range;
  • the transceiver 220 is configured to send the sixth message to the first RAN device when the processor 210 determines that the mobile range of the UE within a preset time period is within a preset range.
  • the transmission path information of the data includes: The address information of the one-hop forwarding device, or the address information of the next hop forwarding device of the data, and the third identifier assigned by the next hop forwarding device to the UE, the third identifier is used for the next hop
  • the forwarding device determines that the data belongs to the UE.
  • the user equipment 200 may correspond to the user equipment in the method of the embodiment of the present invention, and each unit in the user equipment 200, that is, the module and the other operations and/or functions described above are respectively implemented to implement the method 100 to the method 700.
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • the first RAN device sends the first identifier to the first RAN device, so that the first RAN device acquires the transmission path information of the data of the UE according to the first identifier. Therefore, when the UE in the idle state has a data transmission requirement, the signaling overhead in the data transmission process can be reduced, and the efficiency of transmitting the data is improved.
  • the transceiver 220 is configured to send a first message to the radio access network RAN device, where the first message is used to request the RAN device to set the UE to a suspended state;
  • the transceiver 220 is further configured to receive a second message sent by the RAN device, where the second message is used to indicate that the RAN device has set the UE to a suspended state, so that the UE sends data to the RAN device. And requesting the RAN device to restore the connection of the UE to the RAN device, and send data to the RAN device through the connection.
  • the user equipment UE requests the RAN device to set the UE to the suspended state, so that when the UE needs to transmit data, the UE may request the RAN device to directly restore the connection between the RAN device and the UE, thereby saving the letter. Increase overhead and increase the efficiency of data transmission.
  • the processor 210 is configured to determine whether a moving range of the UE in a preset time period is within a preset range
  • the transceiver 220 is configured to send the first message to the RAN device when the processor 210 determines that the UE is within a preset range of the mobile device.
  • the user equipment 40 may correspond to the user equipment in the method of the embodiment of the present invention, and each unit in the user equipment 40, that is, the module and the other operations and/or functions described above are respectively implemented to implement the method 800 to the method 2000.
  • the corresponding process in the process for the sake of brevity, will not be repeated here.
  • the user equipment UE requests the RAN device to set the UE to the suspended state, so that when the UE needs to send data, the UE may request the RAN device to directly restore the connection between the RAN device and the UE, which can save signaling overhead. Improve the efficiency of data transmission.
  • FIG. 20 is a schematic flowchart of a method of data transmission according to still another embodiment of the present invention. As shown in FIG. 20, method 3000 includes:
  • the user equipment UE sends a first message to the core network device by using the access network AN device, where the first message is used to request to enter the first state, where the first message includes first information, where the first information is used.
  • the core network device determines parameter information used by the UE in the first state;
  • the AN may be an access network defined by 3GPP, such as 4G RAN, 5G RAN, or may be a non-3GPP defined network, such as WiFi, Ethernet, or the like.
  • 3GPP such as 4G RAN, 5G RAN
  • non-3GPP defined network such as WiFi, Ethernet, or the like.
  • S3020 The UE receives a second message sent by the core network device, where the second message includes the parameter information.
  • the user equipment sends a first message requesting to enter the first state to the core network device, and the core network device determines, according to the information in the first message, the UE is used in the first state.
  • the parameter information is sent to the UE, and the second message including the parameter information is sent to enable the user equipment to enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the core network device may determine that the UE requests to enter the first state according to the first message itself, or the core network device determines that the UE requests to enter the first state according to the content carried in the first message, specifically, It may be determined according to the indication information that the request carried in the first message enters the first state, or may be determined according to the Cell list carried in the first message.
  • the UE stops sending a periodic location update request message to the core network device.
  • the UE stops sending the periodic location update request message to the core network device, and after the UE enters the first state, stops the periodic update timer or sets the periodic update timer to an unavailable state, thereby stopping the device to the core network.
  • a periodic location update request message is sent.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the core network device determines, according to the first range information, second range information, where the second range information is used to indicate a range of movement when the UE determined by the core network device is in the first state. Subsequently, when the network has data to send the UE, the core network device or the AN device only needs to page the paging UE within the second range indicated by the second range information.
  • the UE is determined according to historical mobility information of the UE, or the first range information is historical movement information and the historical movement of the UE according to the UE.
  • the time period corresponding to the information is determined.
  • the UE determines to enter the first mobile range of the indication of the first mobile range information, and then the The UE sends the first message to the core network device by using the access network AN device.
  • the UE may determine the range of motion when the UE is in the first state according to the historical movement information of the UE recorded by itself.
  • the UE sends a first message to the core network device.
  • the range of movement of the UE in the first state determined by the core network device may be understood as that the network determines that the UE is in the first state when moving within the range.
  • the UE when the UE moves out of the mobile range, the UE reports to the network that the range has been removed.
  • the range of the UE in the first state determined by the core network device may be the first range information sent by the UE, or the range generated by the core network device based on the first range information and/or the network configuration information reported by the UE.
  • the core network device may generate a Tracking Area ("TA") List or an AN Routing Areas ("AR") List according to the Cell List.
  • TA Tracking Area
  • AR AN Routing Areas
  • the UE determines that the user using the UE works in the company from 9:00 to 18:00 every day, and the scope of the company is a cell list including cell-1, cell-2, and cell-3.
  • the UE requests the network to enter the first state, where the request carries the cell list, where the cell list is the mobile range reported by the UE in the first state.
  • the network may generate a mobile range determined by the network according to the cell list.
  • the mobile range determined by the network may be a cell list reported by the UE, or may be a TA list or an ARA list generated according to the cell list reported by the UE.
  • the first range information includes a cell list (Cell List) in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • Cell List a cell list in which the UE is in the first state
  • the first range information includes a location area list in which the UE is in the first state.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range.
  • the core network device determines the second time period information according to the first time period information, where the second time period information is used to indicate the time period determined by the core network device that the UE is in the first state.
  • the UE when the UE determines that the UE moves out of the range of the second scope information identifier, the UE sends a third message to the core network device, where the third message is used to request to exit the The first state and/or enter the second state, or the third message is used to notify the core network device that the UE leaves the second range.
  • the first information includes mobile mode information
  • the mobile mode information is used to indicate a mobile mode of the UE, and the mobile mode includes a mobile frequency or a mobile range of the UE.
  • the mobile mode is determined by the UE according to historical mobile information of the UE, or the mobile mode is time that the UE corresponds to the historical mobile information of the UE and the historical mobile information.
  • the segment is determined.
  • the core network device determines the mobile mode of the UE according to the mobility mode information, and then, when the core network device sends the second message to the UE, the second message carries the UE that is used to indicate the core network device determines Information about the mobile mode.
  • the UE sends the first message to the core network entity when the determined mobility mode changes or when the UE enters the time period information corresponding to the mobile mode.
  • the movement mode may be, for example, a wide range movement, a small range movement, or a relatively stationary state.
  • the UE determines that the user using the UE is working in the company from 9:00 to 18:00 every day, and the UE reports the mobile mode of the UE to the network as a small range of movement.
  • the UE sends the first message to the core network entity when determining that the UE changes from the large-range mobile to the small-scale mobile; or the UE is in the small-scale mobile that determines that the UE enters 9:00-18:00 After the segment, the first message is sent to the core network entity.
  • the first information includes the traffic information of the UE, where the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the traffic information is determined by the UE according to an application currently running by the UE, or the traffic information is determined by the UE according to the historical traffic of the UE, or the traffic information.
  • the UE is determined according to the historical traffic volume of the UE and the time period corresponding to the historical traffic volume.
  • the UE determines that the UE has social networking software such as QQ or WeChat, and needs to send and receive data frequently between the network and the network, and the service volume of the UE is to frequently send data.
  • social networking software such as QQ or WeChat
  • the method 3000 further includes:
  • S3030 The UE sends a registration message to the core network device, where the registration message carries information indicating that the UE supports the first state.
  • the core network device receives the registration message sent by the UE, and the registration message carries information indicating that the UE supports the first state.
  • S3040 The UE receives a registration response message sent by the core network device, where the registration response is cancelled.
  • the information carrying the core network device supports the first state.
  • the core network device sends a registration response message to the UE, where the registration response message carries information that the core network device supports the first state.
  • the first state includes: AN level tracking of AN level tracking; or RRC radio resource management deactivated connection state (Inactive Connected); or, Suspend state; Alternatively, the connection manages the CM long connection state; or, the CM connection state, the RRC deactivates the connection state.
  • the location tracking of the AN level is to track the location of the UE by the AN, that is, when the UE is in the range of motion sent by the AN to the UE, the AN is not required to be notified; when the UE moves out of the range of the AN, the AN needs to be notified.
  • RRC Inactive Connected is the state of a UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and AN and The context of the UE is stored in the core network entity.
  • Suspend is a state of the UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and the AN and the core network
  • the context of the UE is stored in the entity.
  • the CM connection manages the long connection state to the state of one UE.
  • the UE In this state, the UE is always in the CM connection state, that is, the NAS signaling connection state, in the view of the core network entity.
  • the RRC radio resource management deactivates the connection state to a UE state.
  • the RRC connection between the UE and the AN may be in a disconnected state.
  • the UE In the view of the core network entity, the UE is in the CM connection state, that is, NAS signaling connection state.
  • the method 4000 includes:
  • the user equipment UE sends a first message to the access network AN device, where the first message is used to request to enter the first state, where the first message includes first information, where the first information is used by the AN device to determine the UE. Parameter information used in the first state;
  • the AN device may determine that the UE requests to enter the first state according to the first message itself, or the AN device determines that the UE requests to enter the first state according to the content carried in the first message, specifically, according to The indication information carried in the first message is determined by entering the indication information of the first state.
  • the AN may be an access network defined by 3GPP, such as 4G RAN, 5G RAN, or may be a non-3GPP defined network, such as WiFi, Ethernet, or the like.
  • 3GPP such as 4G RAN, 5G RAN
  • non-3GPP defined network such as WiFi, Ethernet, or the like.
  • S4020 The UE receives a second message sent by the AN device, where the parameter information is included in the second message.
  • the user equipment sends a first message requesting to enter the first state to the access network device, and the access network device determines, according to the information in the first message, that the UE is in the first state.
  • the parameter information is used, and the second message including the parameter information is sent to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the AN device may determine that the UE requests to enter the first state according to the first message itself, or the AN device determines that the UE requests to enter the first state according to the content carried in the first message, specifically, according to
  • the indication information carried in the first message is determined by entering the indication information of the first state, or may be determined according to the Cell list carried in the first message.
  • the UE stops sending a periodic location update request message to the core network device.
  • the UE stops sending the periodic location update request message to the core network device, and after the UE enters the first state, stops the periodic update timer or sets the periodic update timer to an unavailable state, thereby stopping sending to the core network device.
  • Periodic location update request message when the UE enters the first state, the UE stops sending a periodic location update request message to the core network device.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the AN device determines, according to the first range information, second range information, where the second range information is used to indicate a range of movement when the UE determined by the core AN device device is in the first state.
  • the first range information is determined by the UE according to historical mobile information of the UE, or the first range information is that the UE moves information according to history of the UE and the The time period corresponding to the historical movement information is determined.
  • the UE determines to enter the first moving range of the indication of the first mobile range information.
  • the UE may determine, according to the historical movement information of the UE recorded by itself, the moving range of the UE in the first state.
  • the UE sends a first message to the AN device.
  • the range of motion of the UE determined by the AN device in the first state may be understood as the AN determining that the UE is always in the first state when moving within the range.
  • the UE reports to the AN that the range has been removed.
  • the range of the UE that is determined by the UE to be in the first state may be the first range information sent by the UE, or the range generated by the AN device based on the first range information and/or the network configuration information reported by the UE. Assuming that the UE reports a Cell List, the AN device can generate a tracking area according to the Cell List. Called "TA") List or ARA List. For example, the UE determines that the user using the UE works in the company from 9:00 to 18:00 every day, and the scope of the company is a cell list including cell-1, cell-2, and cell-3.
  • the UE requests the AN to enter the first state, and the request carries the cell list, where the cell list is the mobile range that is reported by the UE in the first state.
  • the AN may generate a mobile range determined by the network according to the cell list.
  • the mobile range determined by the network may be a cell list reported by the UE, or may be a TA list or an ARA list generated according to the cell list reported by the UE.
  • the AN device may send a message to the core network device, to request the core network device to determine whether the UE is allowed to enter the first state, if the core network device determines to allow When the UE enters the first state, the AN sends a second message to the UE.
  • the first range information includes a cell list (Cell List) in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • Cell List a cell list in which the UE is in the first state
  • the first range information includes a location area list in which the UE is in the first state.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range.
  • the AN device determines the second time period information according to the first time period information, where the second time period information is used to indicate the time period determined by the AN device that the UE is in the first state.
  • the UE when the UE determines that the UE moves out of the range of the second scope information identifier, the UE sends a third message to the AN device, where the third message is used to request to quit the first a state and/or entering a second state; or, the third message is used to notify the core network device that the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE.
  • the mobile mode is determined by the UE according to historical mobile information of the UE, or the mobile mode is determined by the UE according to historical movement information of the UE and a time period corresponding to the historical mobile information.
  • the AN device determines the mobile mode of the UE according to the mobile mode information, and then, when the second device sends the second message to the UE, the second message carries a mobile mode for indicating the UE determined by the AN device. Information.
  • the UE is determined to change when the mobile mode changes or when the UE enters the mobile mode, And sending the first message to the core network entity.
  • the movement mode may be, for example, a wide range movement, a small range movement, or a relatively stationary state.
  • the UE determines that the user using the UE is working in the company from 9:00 to 18:00 every day, and the UE reports the mobile mode of the UE to the network as a small range of movement.
  • the UE sends the first message to the core network entity when determining that the UE changes from the large-range mobile to the small-scale mobile; or the UE is in the small-scale mobile that determines that the UE enters 9:00-18:00 After the segment, the first message is sent to the core network entity.
  • the first information includes the traffic information of the UE, where the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the traffic information is determined by the UE according to an application currently running by the UE, or the traffic information is determined by the UE according to the historical traffic of the UE, or the traffic information.
  • the UE is determined according to the historical traffic volume of the UE and the time period corresponding to the historical traffic volume.
  • the UE determines that the UE has social networking software such as QQ or WeChat, and needs to send and receive data frequently between the network and the network, and the service volume of the UE is to frequently send data.
  • social networking software such as QQ or WeChat
  • the method 4000 further includes:
  • S4030 The UE sends a registration message to the core network device by using the AN device, where the registration message carries information indicating that the UE supports the first state.
  • the AN device receives the registration message sent by the UE, and forwards the registration message to the core network device.
  • the UE receives a registration response message sent by the core network device by using the AN device, where the registration response message carries information that the core network device supports the first state.
  • the AN device receives the registration response message sent by the core network device, and forwards the registration response message to the UE.
  • the first state includes: AN Level Tracking AN Level Tracking; or, Radio Resource Management RRC Deactivated Connected State; or Suspend state;
  • the connection manages the CM long connection state; or, the CM connection state, the RRC deactivates the connection state.
  • the location tracking of the AN level is to track the location of the UE by the AN, that is, when the UE is in the range of motion sent by the AN to the UE, it is not necessary to notify the AN; when the UE moves out When the scope of the AN is required, the AN needs to be notified.
  • RRC Inactive Connected is the state of a UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and AN and The context of the UE is stored in the core network entity.
  • Suspend is a state of the UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and the AN and the core network
  • the context of the UE is stored in the entity.
  • the CM connection manages the long connection state to the state of one UE.
  • the UE In this state, the UE is always in the CM connection state, that is, the NAS signaling connection state, in the view of the core network entity.
  • the RRC radio resource management deactivates the connection state to a UE state.
  • the RRC connection between the UE and the AN may be in a disconnected state.
  • the UE In the view of the core network entity, the UE is in the CM connection state, that is, NAS signaling connection state.
  • FIG. 22 is a diagram of a method of data transmission according to still another embodiment of the present invention. As shown in FIG. 22, the method 5000 includes:
  • the user equipment UE sends a first message to the core network device by using the access network AN device, where the first message is used to request to enter the first state, where the first message includes the first information, where the first information is used by the AN
  • the device determines parameter information used by the UE in the first state
  • the core network device may determine that the UE requests to enter the first state according to the first message itself, or the core network device determines that the UE requests to enter the first state according to the content carried in the first message, specifically, It may be determined according to the indication information that the request carried in the first message enters the first state, or may be determined according to the Cell list carried in the first message.
  • the AN may be an access network defined by 3GPP, such as 4G RAN, 5G RAN, or may be a non-3GPP defined network, such as WiFi, Ethernet, or the like.
  • 3GPP such as 4G RAN, 5G RAN
  • non-3GPP defined network such as WiFi, Ethernet, or the like.
  • the core network device sends a second message to the AN device, where the second message includes first information, where the first information is used by the AN device to determine parameter information used by the UE in the first state.
  • S5030 The UE receives a third message sent by the AN device, where the third message includes the parameter information.
  • the access network device receives the second message sent by the core network device, determines the parameter information used by the UE in the first state according to the information in the second message, and sends the parameter information to the UE.
  • the second message including the parameter information is sent, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the UE stops.
  • a periodic location update request message is sent to the AN device.
  • the UE stops sending the periodic location update request message to the core network device, and after the UE enters the first state, stops the periodic update timer or sets the periodic update timer to an unavailable state, thereby stopping the device to the core network.
  • a periodic location update request message is sent.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the AN device determines, according to the first range information, second range information, where the second range information is used to indicate a range of movement when the UE determined by the core AN device device is in the first state.
  • the UE is determined according to historical mobile information of the UE, or the mobile mode is time that the UE corresponds to the historical mobile information of the UE and the historical mobile information.
  • the segment is determined.
  • the UE determines to enter the first moving range of the indication of the first mobile range information.
  • the UE may determine, according to the historical movement information of the UE recorded by itself, the moving range of the UE in the first state.
  • the UE sends a first message to the AN device.
  • the range of motion of the UE determined by the AN device in the first state may be understood as the AN determining that the UE is always in the first state when moving within the range.
  • the UE reports to the AN that the range has been removed.
  • the range of the UE that is determined by the UE to be in the first state may be the first range information sent by the UE, or the range generated by the AN device based on the first range information and/or the network configuration information reported by the UE. Assuming that the UE reports a Cell List, the AN device can generate a Tracking Area ("TA") List or an ARA List according to the Cell List. For example, the UE determines that the user using the UE works in the company from 9:00 to 18:00 every day, and the scope of the company is a cell list including cell-1, cell-2, and cell-3.
  • TA Tracking Area
  • the UE requests the AN to enter the first state, and the request carries the cell list, where the cell list is the mobile range that is reported by the UE in the first state.
  • the AN may generate a mobile range determined by the network according to the cell list.
  • the mobile range determined by the network may be a cell list reported by the UE, or may be a TA list or an ARA list generated according to the cell list reported by the UE.
  • the core network device may send a second message to the AN device, where the second message is used to request the core network device to set the UE to the first state; or The second message is used to notify the access network device that the UE enters the first state.
  • the first range information includes a cell list (Cell List) in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • Cell List a cell list in which the UE is in the first state
  • the first range information includes a location area list in which the UE is in the first state.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range.
  • the AN device determines the second time period information according to the first time period information, where the second time period information is used to indicate the time period determined by the AN device that the UE is in the first state.
  • the UE when the UE determines that the UE moves out of the range of the second scope information identifier, the UE sends a fourth message to the AN device, where the fourth message is used to request to quit the first a state and/or entering a second state; or, the fourth message is used to notify the core network device that the UE leaves the second range.
  • the core network device sends a fifth message to the AN device, where the fifth message is used to notify the AN device that the UE exits the first state and/or enters the second state.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE.
  • the mobility mode is determined by the UE according to the historical mobility information of the UE, or the mobility mode is a time that the UE corresponds to the historical mobility information of the UE and the historical mobility information.
  • the segment is determined.
  • the AN device determines the mobile mode of the UE according to the mobile mode information, and then, when the second device sends the second message to the UE, the second message carries a mobile mode for indicating the UE determined by the AN device.
  • the UE sends the first message to the core network entity when the determined mobility mode changes or when the UE enters the time period information corresponding to the mobile mode.
  • the movement mode may be, for example, a wide range movement, a small range movement, or a relatively stationary state.
  • the UE determines that the user using the UE is working in the company from 9:00 to 18:00 every day, and the UE reports the mobile mode of the UE to the network as a small range of movement.
  • the UE sends the first message to the core network entity when determining that the UE changes from the large-range mobile to the small-scale mobile; or the UE is in the small-scale mobile that determines that the UE enters 9:00-18:00 After the segment, the first message is sent to the core network entity.
  • the first information includes traffic information of the UE, where The traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the traffic information is determined by the UE according to an application currently running by the UE, or the traffic information is determined by the UE according to the historical traffic of the UE, or the traffic The information is determined by the UE according to the historical traffic volume of the UE and the time period corresponding to the historical traffic volume.
  • the UE determines that the UE has social networking software such as QQ or WeChat, and needs to send and receive data frequently between the network and the network, and the service volume of the UE is to frequently send data.
  • social networking software such as QQ or WeChat
  • the method 5000 further includes:
  • S5040 The UE sends a registration message to the core network device by using the AN device, where the registration message carries information indicating that the UE supports the first state.
  • the AN device receives the registration message sent by the UE, and forwards the registration message to the core network device.
  • S5050 The UE receives a registration response message sent by the core network device by using the AN device, where the registration response message carries information that the core network device supports the first state.
  • the AN device receives the registration response message sent by the core network device, and forwards the registration response message to the UE.
  • the first state includes: AN Level Tracking AN Level Tracking; or, Radio Resource Management RRC Deactivated Connected State; or Suspend state;
  • the connection manages the CM long connection state; or, the CM connection state, the RRC deactivates the connection state.
  • the location tracking of the AN level is to track the location of the UE by the AN, that is, when the UE is in the range of motion sent by the AN to the UE, the AN is not required to be notified; when the UE moves out of the range of the AN, the AN needs to be notified.
  • RRC Inactive Connected is the state of a UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and AN and The context of the UE is stored in the core network entity.
  • Suspend is a state of the UE in which the signaling and/or data connection between the UE and the AN does not exist, but there is a signaling and/or data connection between the UE and the core network entity, and the AN and the core network
  • the context of the UE is stored in the entity.
  • the CM connection manages the long connection state to the state of one UE.
  • the UE In this state, the UE is always in the CM connection state, that is, the NAS signaling connection state, in the view of the core network entity.
  • the RRC radio resource management deactivates the connection state to a UE state, in which the RRC connection between the UE and the AN may be in a disconnected state.
  • the UE In the view of the core network entity, the UE is in the CM connection state, that is, the NAS signaling connection state.
  • FIG. 23 is a schematic flowchart of a method for data transmission according to an embodiment of the present invention. As shown in FIG. 23, the method 6000 includes:
  • S6010 The UE determines to enter a relative location fixed area
  • the UE determines to move within a predetermined area (Cell List or TA List) within a predetermined time.
  • S6020 The UE sends a Tracking Area Updating (TAU) request message to the CP Fcunction.
  • TAU Tracking Area Updating
  • the TAU request message carries information indicating that the UE can enter the Suspend state, the predetermined area of the UE, or the TUA message optionally carries the latest mobility level of the UE, for example, unrestricted mobility (Unlimited) Mobility), Limited Mobility, No Mobility.
  • Unlimited unrestricted mobility
  • Limited Mobility Limited Mobility
  • No Mobility No Mobility
  • the CP Function determines, according to the subscription information of the UE, whether to respond to the TAU request message.
  • the CP Function determines whether the UE is allowed to send a TAU request, and the CP Function can determine the mobile range of the allowed UE according to the predetermined area. Further, the mobile level of the UE can be determined.
  • S6040 The CP Function sends a TAU Accept message to the UE.
  • the TAU Accept message carries the allowed mobile range of the UE. Further, the TAU Accept message includes the latest mobile level.
  • S6050 The UE sends a Service Request message to the CP Function.
  • the UE determines whether the UE includes the indication information for activating the Suspend state in the Service Request message if it is within the predetermined time period;
  • S6060 The CP Fucntion sends an NG2 AP message to the AN device.
  • the N2 AP message carries the session context, and the UE enters the Suspend state and the allowed UE's mobility range.
  • S6070 The AN device saves the allowed mobile range of the UE.
  • a DRB is established between the AN and the UE for transmitting data.
  • the AN device determines that the Inactive Time of the UE is timed out, and the AN device sends an RRC Connection Release message to the UE.
  • the subsequent AN device receives the downlink data sent to the UE, the UE is paged within the mobile range of the saved UE.
  • the user equipment UE 50 includes:
  • the sending unit 51 is configured to send, by using the access network AN device, a first message to the core network device, where the first message is used to request to enter the first state, where the first message includes the first information, where the first information is used by Determining, by the core network device, parameter information used by the UE in the first state;
  • the receiving unit 52 is configured to receive a second message sent by the core network device, where the parameter information is included in the second message.
  • the user equipment sends a first message requesting the first state to the core network device, and the core network device determines the parameter information used by the UE in the first state according to the information in the first message, and The UE sends a second message including the parameter information, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the sending unit 51 is further configured to: when the UE enters the first state, stop sending a periodic location update request message to the core network device.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes a cell list in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • the first range information is determined by the UE according to historical mobile information of the UE, or the first range information is that the UE is based on the history of the UE.
  • the time period corresponding to the movement information and the historical movement information is determined.
  • the UE further includes: a determining unit, configured to determine, by the UE, the first moving range indicated by the first moving range information.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range.
  • the parameter information includes second range information, where the second range information is determined by the AN device according to the first range information, where the second range information is used to identify the AN The range of motion when the UE is in the first state determined by the device.
  • the sending unit 52 is further configured to: when the UE determines that the UE moves out of the range of the second range information identifier, send a third message to the core network device, where the third The message is used to request to exit the first state and/or enter the second state, or the third message is used to notify the AN device that the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE.
  • the mobility mode is determined by the UE according to the historical mobility information of the UE, or the mobility mode is that the UE moves information and information according to the history of the UE. The time period corresponding to the historical movement information is determined.
  • the first information includes the traffic information of the UE, where the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the sending unit 52 before the sending unit 52 sends the first message to the core network device by using the access network AN device, the sending unit 52 is further configured to: send a registration message to the core network device, where The registration message carries information indicating that the UE supports the first state;
  • the receiving unit 51 is configured to: receive a registration response message sent by the core network device, where the registration response message carries information that the core network device supports the first state.
  • the first state includes: location tracking of an AN level; or, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state; or , CM connected state, RRC deactivates the connected state.
  • the user equipment 50 may correspond to the method 3000 for performing data transmission in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the user equipment 50 are respectively implemented in the method 3000.
  • the corresponding process performed by the user equipment body is not described here for brevity.
  • FIG. 25 is a user equipment according to another embodiment of the present invention. As shown in FIG. 25, the user equipment UE 60 includes:
  • the sending unit 61 is configured to send a first message to the access network AN device, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is used by the AN device to determine the Parameter information used by the UE in the first state;
  • the receiving unit 62 is configured to receive a second message sent by the AN device, where the second message is an acknowledgement message of the first message, and the second message includes the parameter information.
  • the user equipment sends a first message requesting to enter the first state to the access network device, and the access network device determines the parameter information used by the UE in the first state according to the information in the first message. And sending a second message including the parameter information to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the sending unit 61 is further configured to: when the UE enters the first state, stop sending a periodic location update request message to the core network device.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes a cell list in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • the first range information is determined by the UE according to historical mobile information of the UE, or the first range information is that the UE is based on the history of the UE.
  • the time period corresponding to the movement information and the historical movement information is determined.
  • the UE further includes a determining unit, configured to determine that the UE enters the first moving range indicated by the first moving range information.
  • the parameter information includes second range information, where the second range information is determined by the AN or the core network device according to the first range information, where the second range information is used. And identifying a range of movement when the UE or the core network device determines that the UE is in the first state.
  • the sending unit 62 is further configured to: when the UE determines that the UE moves out of the range of the second range information identifier, send a third message to the core network device, where the third The message is used to request to exit the first state and/or enter the second state, or the third message is used to notify the core network device that the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE.
  • the mobility mode is determined by the UE according to the historical mobility information of the UE, or the mobility mode is that the UE moves information and information according to the history of the UE. The time period corresponding to the historical movement information is determined.
  • the first information includes traffic information of the UE, where The traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the sending unit 62 before the sending unit 62 sends the first message to the AN device, the sending unit 62 is further configured to: send, by using the AN device, a registration message to the core network device, where the registration message is carried in the The UE supports the information of the first state;
  • the receiving unit 61 is further configured to: receive a registration response message sent by the core network device by using the AN device, where the registration response message carries information that the core network device supports the first state.
  • the first state includes: location tracking of the AN level; or, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state; Alternatively, the CM is connected to the state, and the RRC deactivates the connected state.
  • the user equipment 60 in accordance with an embodiment of the present invention may correspond to the method 4000 of performing data transmission in embodiments of the present invention, and that the above and other operations and/or functions of the various modules in the user equipment 60 are respectively implemented in the method 4000.
  • the corresponding process performed by the user equipment body is not described here for brevity.
  • FIG. 26 shows a user equipment UE according to still another embodiment of the present invention.
  • the user equipment 70 includes:
  • the sending unit 71 is configured to send, by using the access network AN device, a first message to the core network device, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is Determining, by the AN device, parameter information used by the UE in the first state;
  • the receiving unit 72 is configured to receive a second message sent by the AN device, where the second message includes the parameter information.
  • the user equipment sends a first message requesting to enter the first state to the core network device, and receives a parameter used by the access network device according to the information in the first message, which is used by the UE in the first state.
  • the information the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the sending unit 71 is further configured to: when the UE enters the first state, stop sending a periodic location update request message to the core network device.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes that the UE is in the a cell list of the first state, or the first range information includes a location area list in which the UE is in the first state.
  • the first range information is determined by the UE according to the historical mobility information of the UE, or the first range information is that the UE is according to the UE.
  • the historical movement information is determined by the time period corresponding to the historical movement information.
  • the UE further includes: a determining unit, configured to determine, by the UE, the first moving range of the indication that the first mobile range information is entered.
  • the parameter information includes second range information, where the second range information is determined by the AN or the core network device according to the first range information, where The second range information is used to identify a range of movement when the UE or the core network device determines that the UE is in the first state.
  • the sending unit 71 is further configured to: when the UE determines that the UE moves out of the range of the second range information identifier, send the third to the core network device. a message, the third message is used to request to exit the first state and/or enter a second state, or the third message is used to notify the core network device, the UE leaving the second scope information identifier The scope.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, and the mobile mode includes a mobile frequency or a mobile range of the UE. .
  • the mobility mode is determined by the UE according to the historical mobility information of the UE, or the mobility mode is that the UE moves information and information according to the history of the UE. The time period corresponding to the historical movement information is determined.
  • the first information includes the traffic information of the UE, and the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the traffic information is determined by the UE according to an application currently running by the UE, or the traffic information is a historical traffic of the UE according to the UE. Determining, or the traffic information is determined by the UE according to a historical traffic volume of the UE and a time period corresponding to the historical traffic volume.
  • the sending unit 71 is further configured to: use the AN device to the core network device Sending a registration message, where the registration message carries the UE to support the first state State information
  • the receiving unit 72 is further configured to receive a registration response message sent by the core network device by using the AN device, where the registration response message carries information that the core network device supports the first state.
  • the first state includes: location tracking of the AN level; or, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state Or, CM connected state, RRC deactivates the connected state.
  • the user equipment 70 in accordance with an embodiment of the present invention may correspond to the method 5000 of performing data transmission in embodiments of the present invention, and that the above and other operations and/or functions of the various modules in the user equipment 70 are respectively implemented in the method 5000.
  • the corresponding process performed by the user equipment body is not described here for brevity.
  • FIG. 27 shows a core network device according to still another embodiment of the present invention.
  • the core network device 80 includes:
  • the receiving unit 81 is configured to receive a first message sent by the user equipment UE by using the access network AN device, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is included Determining, by the core network device, parameter information used by the UE in the first state;
  • a determining unit 82 configured to determine, according to the first information, parameter information used by the UE in the first state;
  • the sending unit 83 is configured to send a second message to the UE, where the parameter information is included in the second message.
  • the core network device receives the first message sent by the user equipment to enter the first state, and the core network device determines, according to the information in the first message, the parameter information used by the UE in the first state, and The second message including the parameter information is sent to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes a cell list in which the UE is in the first state, or the first range information includes a location area list in which the UE is in the first state.
  • the first range information is determined by the UE according to the historical mobility information of the UE, or the first range information is that the UE is according to the UE.
  • the historical movement information is determined by the time period corresponding to the historical movement information.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range;
  • the determining unit 82 is configured to: determine, according to the first time period information, second time period information, the second, according to the first information, determining the parameter information used by the UE in the first state.
  • the time period information is used to indicate a time period determined by the determining unit that the UE is in the first state.
  • the determining unit 82 is specifically configured to: determine, according to the first range information, The second range information is used to indicate a range of movement when the determining unit determines that the UE is in the first state.
  • the sending unit 83 is configured to: send, to the AN device, the parameter information used by the UE in the first state according to the first information.
  • the first range information so that the AN device determines second range information, where the second range information is used to indicate a range of movement when the UE is determined to be in the first state by the AN device;
  • the receiving unit 81 is configured to receive a message that is sent by the AN device and includes the second range information.
  • the determining unit 82 is configured to determine the second range information from the message.
  • the receiving unit 81 is further configured to: receive a third message sent by the UE, where the third message is used to request to exit the first state and/or enter the second state, or The third message is used to notify the core network device, and the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE;
  • the determining unit 82 is specifically configured to determine, according to the mobile mode information, a mobile mode of the UE, where the parameter information is determined according to the first information, where the parameter information is used by the UE in the first state.
  • Information for indicating a mobile mode of the UE determined by the determining unit is included.
  • the first information includes the traffic information of the UE, where the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the receiving unit 81 before the receiving unit 81 receives the first message sent by the user equipment UE through the access network AN device, the receiving unit 81 is further configured to: receive the registration message sent by the UE, where The registration message carries information indicating that the UE supports the first state;
  • the sending unit 82 is further configured to: send a registration response message to the UE, where the registration response message carries information that the core network entity supports the first state.
  • the first state includes: location tracking of an AN level; or, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state; or , CM connected state, RRC deactivates the connected state.
  • the core network device 80 may correspond to the method 3000 for performing data transmission in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the core network device 80 are respectively implemented in order to implement the method.
  • the corresponding process performed by the core network device body in 3000 is not described here for brevity.
  • FIG. 28 shows an access network device according to still another embodiment of the present invention.
  • the access network device 90 includes:
  • the receiving unit 91 is configured to receive a first message sent by the UE, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is used by the AN device to determine that the UE is in the Parameter information used in the first state;
  • a determining unit 92 configured to determine, according to the first information, parameter information used by the UE in the first state
  • the sending unit 93 is configured to send a second message to the UE, where the parameter information is included in the second message.
  • the access network device receives the first message sent by the user equipment to enter the first state, and the access network device determines the parameter information used by the UE in the first state according to the information in the first message. And sending a second message including the parameter information to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes a cell list in which the UE is in the first state, or the first range information includes a location area column in which the UE is in the first state. table.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range;
  • the determining unit 92 is configured to determine, according to the first time period information, the second time period information, the second, according to the first information, determining the parameter information used by the UE in the first state.
  • the time period information is used to indicate a period of time that the UE determines that the UE is in the first state.
  • the determining unit 92 is specifically configured to: determine, according to the first information, the second The range information is used to identify a range of movement when the UE is in the first state determined by the AN device.
  • the receiving unit 91 is further configured to: receive a third message sent by the UE, where the third message is used to request to exit the first state and/or enter the second state, or The third message is used to notify the AN device that the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, where the mobile mode includes a mobile frequency or a mobile range of the UE;
  • the determining unit 92 is specifically configured to determine, according to the mobile mode information, a mobile mode of the UE, where the parameter information is determined according to the first information, where the parameter information is used by the UE in the first state.
  • Information for indicating a mobile mode of the UE determined by the determining unit is included.
  • the first information includes the traffic information of the UE, where the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the receiving unit 91 before the receiving unit 91 receives the first message sent by the user equipment UE, the receiving unit 91 is further configured to: receive the registration message sent by the UE; the sending unit is further configured to: The network device forwards the registration message, where the registration message carries information that the UE supports the first state;
  • the receiving unit 91 is further configured to: receive the registration response message sent by the core network device, and the sending unit 93 is further configured to: forward the registration response message to the UE, where the registration response message carries the core network device to support the first Status information.
  • the first state includes: location tracking of an AN level; Alternatively, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state; or, the CM connection state, the RRC deactivates the connection state.
  • the access network device 90 in accordance with an embodiment of the present invention may correspond to the method 4000 of performing data transmission in embodiments of the present invention, and that the above and other operations and/or functions of the various modules in the access network device 90 are respectively The corresponding process performed by the core network device in the method 4000 is not described here for brevity.
  • FIG. 29 shows an access network device according to still another embodiment of the present invention. As shown in FIG. 29, the access network device 1000 includes
  • the receiving unit 1100 is configured to receive a first message sent by the core network device, where the first message includes first information, where the first information is used by the AN device to determine that the UE is used in the first state. Parameter information;
  • a determining unit 1200 configured to determine, according to the first information, parameter information used by the UE in the first state
  • the sending unit 1300 is configured to send a second message to the UE, where the second message includes the parameter information.
  • the access network device receives a message sent by the core network device for requesting to set the UE to the first state, and determines parameter information used by the UE in the first state according to the information in the message.
  • the second message including the parameter information is sent to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the first information includes first range information, where the first range information is used to identify a moving range of the UE in the first state.
  • the first range information includes a cell list in which the UE is in the first state, or the first range information includes that the UE is in the first state.
  • a list of location areas optionally, includes a cell list in which the UE is in the first state, or the first range information includes that the UE is in the first state.
  • the first information further includes first time period information, where the first time period information is used to indicate that the UE is in the first time range;
  • the determining unit 1200 is specifically configured to determine, according to the first time period information, a second time period, according to the first information, determining the parameter information used by the UE in the first state. And the second time period information is used to indicate a period of time that the UE determined by the AN is in the first state.
  • determining, according to the first information, that the UE is in the office is specifically configured to: determine, according to the first information, second range information, where the second range information is used to identify the identifier determined by the AN device, in the parameter information used by the first state. The range of movement when the UE is in the first state.
  • the sending unit 1300 is further configured to: receive a third message sent by the UE or the core network device, where the third message is used to request to exit the first state and Or entering a second state, or the third message is used to notify the AN device that the UE leaves the second range.
  • the first information includes mobile mode information, where the mobile mode information is used to indicate a mobile mode of the UE, and the mobile mode includes a mobile frequency or a mobile range;
  • the determining unit 1200 is specifically configured to determine, according to the mobile mode information, a mobile mode of the UE, according to the first information, determining the parameter information used by the UE in the first state. ;
  • the parameter information includes information used to indicate a mobility mode of the UE determined by the AN device.
  • the first information includes the traffic information of the UE, and the traffic information is used to describe the frequency of data transmission and reception of the UE.
  • the receiving unit 1100 is further configured to: receive the registration message sent by the UE, and forward the message to the core network device. And the registration message, where the registration message carries the information that the UE supports the first state, and the registration response message sent by the core network device, where the sending unit 1300 is configured to forward the And a registration response message, where the registration response message carries information that the core network device supports the first state.
  • the first state includes: location tracking of the AN level; or, the radio resource management RRC deactivates the connection state; or, the suspended state; or, the connection management CM long connection state Or, CM connected state, RRC deactivates the connected state.
  • FIG. 30 is a schematic block diagram of a user equipment according to another embodiment of the present invention.
  • the user equipment of FIG. 30 can perform the method performed by the user equipment in each of the flows in FIG.
  • the user device 300 of FIG. 30 includes a transceiver 310, a processor 320, and a memory 330.
  • the processor 320 controls the operation of the user device 300 and can be used to process signals.
  • Memory 330 can include read only memory and random access memory and provides instructions and data to processor 320.
  • the various components of user device 300 pass through bus system 340 Coupled together, the bus system 340 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 340 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 320 or implemented by the processor 320.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 320 or an instruction in a form of software.
  • the processor 320 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 330, and the processor 320 reads the information in the memory 330 and combines the hardware to perform the steps of the above method.
  • the transceiver 310 is configured to send, by using an access network AN device, a first message to the core network device, where the first message is used to request to enter a first state, where the first message includes first information, where The first information is used by the core network device to determine parameter information used by the UE in the first state.
  • the transceiver 310 is further configured to receive a second message sent by the core network device, where the second message is the first message. A confirmation message of the message, the parameter information is included in the second message.
  • the user equipment sends a first message requesting the first state to the core network device, and the core network device determines the parameter information used by the UE in the first state according to the information in the first message, and The UE sends a second message including the parameter information, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the user equipment 300 may correspond to the user equipment 50 according to an embodiment of the present invention, and may correspond to a corresponding subject in a method of performing data transmission according to an embodiment of the present invention, and in the user equipment 300.
  • the above and other operations and/or functions of the respective modules are respectively implemented in order to implement the corresponding processes in the method 3000, and are not described herein again for brevity.
  • the transceiver 310 is configured to send a first message to the access network AN device, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is used by the AN
  • the device determines parameter information used by the UE in the first state; the transceiver 310 is further configured to Receiving a second message sent by the AN device, where the second message is an acknowledgement message of the first message, where the parameter information is included in the second message.
  • the user equipment sends a first message requesting to enter the first state to the access network device, and the access network device determines the parameter information used by the UE in the first state according to the information in the first message. And sending a second message including the parameter information to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the user equipment 300 may correspond to the user equipment 60 according to an embodiment of the present invention, and may correspond to a corresponding subject in a method of performing data transmission according to an embodiment of the present invention, and in the user equipment 300.
  • the above and other operations and/or functions of the respective modules are respectively implemented in order to implement the corresponding processes in the method 4000, and are not described herein for brevity.
  • the transceiver 310 is configured to send, by using an access network AN device, a first message to the core network device, where the first message is used to request to enter a first state, where the first message includes first information, where The first information is used by the AN device to determine parameter information used by the UE in the first state; the transceiver 310 is further configured to receive a second message sent by the AN device, where the second message is Contains the parameter information.
  • the user equipment sends a first message requesting to enter the first state to the core network device, and receives a parameter used by the access network device according to the information in the first message, which is used by the UE in the first state.
  • the information the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the user equipment 300 may correspond to the user equipment 70 according to an embodiment of the present invention, and may correspond to a corresponding subject in a method of performing data transmission according to an embodiment of the present invention, and in the user equipment 300.
  • the above and other operations and/or functions of the respective modules are respectively implemented in order to implement the corresponding processes in the method 5000, and are not described herein for brevity.
  • FIG. 31 is a schematic block diagram of a core network device in accordance with an embodiment of the present invention.
  • the core network device of FIG. 31 can perform the method performed by the core network device in each flow in FIG.
  • the core network device 400 of FIG. 31 includes a transceiver 410, a processor 420, and a memory 430.
  • Processor 420 controls the operation of core network device 400 and can be used to process signals.
  • Memory 430 can include read only memory and random access memory and provides instructions and data to processor 420.
  • the various components of the core network device 400 are coupled together by a bus system 440, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 440 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 420 or implemented by the processor 420.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 420 or an instruction in a form of software.
  • the processor 420 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 430, and the processor 420 reads the information in the memory 430 and completes the steps of the above method in combination with its hardware.
  • the transceiver 410 is configured to receive a first message sent by the user equipment UE by using the access network AN device, where the first message is used to request to enter a first state, where the first message includes first information, where the a message for the core network device to determine parameter information used by the UE in the first state; the processor 420: configured to determine, according to the first information, parameter information used by the UE in the first state; The transceiver 410 is further configured to send a second message to the UE, where the second message is a determining message of the first message, where the parameter information is included in the second message.
  • the core network device receives the first message sent by the user equipment to enter the first state, and the core network device determines, according to the information in the first message, the parameter information used by the UE in the first state, and The second message including the parameter information is sent to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the core network device 400 may correspond to the core network device 70 according to an embodiment of the present invention, and may correspond to a corresponding body in a method of performing data transmission according to an embodiment of the present invention, and the core network
  • the foregoing and other operations and/or functions of the modules in the device 400 are respectively implemented in order to implement the corresponding processes in the method 3000, and are not described herein again for brevity.
  • the access network device of FIG. 32 is a schematic block diagram of an access network device according to an embodiment of the present invention.
  • the access network device of FIG. 32 can perform the method performed by the access network device in each of the processes in FIG.
  • the access network device 500 of FIG. 32 includes a transceiver 510, a processor 520, and a memory 530.
  • Processor 520 controls the operation of access network device 500 and can be used to process signals.
  • Memory 530 can include read only memory and random access memory and provides instructions and data to processor 520.
  • Each component of the access network device 500 passes through the total
  • the line systems 540 are coupled together, wherein the bus system 540 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 540 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 520 or implemented by the processor 520.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 520 or an instruction in a form of software.
  • the processor 520 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 530, and the processor 520 reads the information in the memory 530 and performs the steps of the above method in combination with its hardware.
  • the transceiver 410 is configured to receive a first message sent by the UE, where the first message is used to request to enter a first state, where the first message includes first information, where the first information is used by the AN device to determine The parameter information used by the UE in the first state; the processor 520, configured to determine, according to the first information, parameter information used by the UE in the first state; the transceiver 510 is further configured to The UE sends a second message, where the parameter information is included in the second message.
  • the access network device receives the first message sent by the user equipment to enter the first state, and the access network device determines the parameter information used by the UE in the first state according to the information in the first message. And sending a second message including the parameter information to the UE, so that the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the access network device 400 may correspond to the access network device 90 according to an embodiment of the present invention, and may correspond to a corresponding body in a method of performing data transmission according to an embodiment of the present invention, and
  • the foregoing and other operations and/or functions of the modules in the access network device 400 are respectively implemented in order to implement the corresponding processes in the method 4000, and are not described herein again for brevity.
  • the transceiver 510 is configured to receive a first message sent by the core network device, where the first message includes first information, where the first information is used by the AN device to determine that the UE is in the first The parameter information used by the state; the processor 520, configured to determine, according to the first information, The parameter information used by the UE in the first state; the transceiver 510 is further configured to send a second message to the UE, where the second message includes the parameter information.
  • the access network device receives the message sent by the core network device, and determines parameter information used by the UE in the first state according to the information in the message, and sends a second message including the parameter information to the UE.
  • the user equipment can enter the suspended state, thereby improving data transmission efficiency and saving signaling overhead.
  • the access network device 500 may correspond to the access network device 1000 according to an embodiment of the present invention, and may correspond to a corresponding body in a method of performing data transmission according to an embodiment of the present invention, and
  • the foregoing and other operations and/or functions of the modules in the access network device 500 are respectively implemented in order to implement the corresponding processes in the method 5000.
  • details are not described herein again.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in one unit. In the unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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

Abstract

La présente invention concerne un procédé et un appareil destinés à transmettre des données. Le procédé comprend les étapes suivantes : un premier dispositif de réseau d'accès radio (RAN, "radio acces network") reçoit un premier message envoyé par un équipement utilisateur (UE, "user equipment"), le premier message comprenant des données et une première identification; le premier dispositif RAN détermine, en fonction de la première identification, des informations de trajet de transmission concernant les données; et le premier dispositif RAN transmet les données selon les informations de trajet de transmission concernant les données. Ainsi, lorsqu'un UE dans un état de repos a une exigence d'envoi de données, un surdébit de signalisation dans un processus de transmission de données peut être réduit, et l'efficacité de transmission de données est améliorée.
PCT/CN2016/096296 2016-07-04 2016-08-22 Procédé et dispositif de transmission de données WO2018006480A1 (fr)

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