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Data transmission method and system

  • US 10,667,305 B2
  • Filed: 05/29/2018
  • Issued: 05/26/2020
  • Est. Priority Date: 11/30/2015
  • Status: Active Grant
First Claim
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1. A data transmission method, comprising:

  • receiving, by a first network device by using a first bearer, data from a base station, wherein the base station receives the data from a terminal, wherein the data carries a first identifier of the terminal, wherein the first bearer used to receive the data by the first network device from the base station corresponds to a first service attribute of the data, wherein one or more first bearers are disposed between the first network device and the base station, and wherein one or more second bearers are disposed between the first network device and a second network device;

    obtaining, by the first network device, an IP address of the terminal according to a correspondence between the first identifier of the terminal and the IP address of the terminal; and

    sending, by the first network device, the data to the second network device by using a second bearer, wherein the second bearer used to send the data to the second network device corresponds to a second service attribute of the data, and the data sent by the first network device to the second network device carries the IP address of the terminal.

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