Data transmission method, network device, terminal device, and base station
First Claim
1. A method of data transmission, comprising:
- receiving, by a target network device from a target base station, data sent by a terminal device to the target base station, the data comprising identification information of the terminal device;
when the target network device acknowledges, by using the identification information, that the terminal device has not been registered with the target network device, obtaining, by the target network device, user information of the terminal device, wherein the user information includes subscription information, an encryption parameter and/or an authentication parameter of the terminal device; and
after the target network device obtains the user information of the terminal device, sending, by the target network device, the data to a gateway.
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Abstract
This disclosure includes a data transmission method, a network device, a terminal device, and a base station. In the data transmission method, a target network device receives data sent by a target base station. The data is sent by a terminal device to the target base station, and the data includes identification information of the terminal device. When the target network device acknowledges, by using the identification information, that the terminal device has not been registered with the target network device, the target network device obtains user information of the terminal device. After the target network device obtains the user information of the terminal device, the target network device sends the data to a gateway. By using the data transmission method, the network device, the terminal device, and the base station disclosed in this patent application, the terminal device can still properly perform data transmission during movement.
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Citations
12 Claims
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1. A method of data transmission, comprising:
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receiving, by a target network device from a target base station, data sent by a terminal device to the target base station, the data comprising identification information of the terminal device; when the target network device acknowledges, by using the identification information, that the terminal device has not been registered with the target network device, obtaining, by the target network device, user information of the terminal device, wherein the user information includes subscription information, an encryption parameter and/or an authentication parameter of the terminal device; and after the target network device obtains the user information of the terminal device, sending, by the target network device, the data to a gateway. - View Dependent Claims (2, 3, 4, 5)
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6. A method of data transmission, comprising:
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sending, by a terminal device, data to a target base station, so that the target base station sends the data to a target network device, wherein the data comprises a source first identifier of the terminal device, and the source first identifier is a first identifier allocated by a source network device to the terminal device; and when the target network device acknowledges, by using the source first identifier, that the terminal device has not been registered with the target network device but the target network device obtains user information, receiving, by the terminal device, a new first identifier from the target base station, wherein the user information includes subscription information and/or an encryption parameter, an authentication parameter of the terminal device, and wherein the new first identifier is allocated by the target network device to the terminal device.
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7. A network device, comprising:
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a transceiver; a memory, configured to store an instruction; and a processor separately connected to the memory and the transceiver, configured to execute the instruction, to enable the network device to perform; receiving, by the transceiver, data sent by a target base station, wherein the data is sent by a terminal device to the target base station, and the data comprises identification information of the terminal device; when it is acknowledged, by using the identification information, that the terminal device has not been registered with the network device, obtaining user information of the terminal device by using the transceiver, wherein the user information include subscription information, an encryption parameter and/or an authentication parameter of the terminal device; and after obtaining the user information of the terminal device, sending the data to a gateway by using the transceiver. - View Dependent Claims (8, 9, 10, 11)
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12. A terminal device, comprising:
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a transceiver; a memory, configured to store an instruction; and a processor separately connected to the memory and the transceiver, configured to execute the instruction, to enable the terminal device to perform the following; sending data to a target base station by using the transceiver, so that the target base station sends the data to a target network device, wherein the data comprises a source first identifier of the terminal device, and the source first identifier is a first identifier allocated by a source network device to the terminal device; and when the target network device acknowledges, by using the source first identifier, that the terminal device has not been registered with the target network device but the target network device obtains user information, receiving a new first identifier from the target base station by using the transceiver, wherein the user information include subscription information and/or an encryption parameter and/or an authentication parameter of the terminal device, and wherein the new first identifier is allocated by the target network device to the terminal device.
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Specification