Method, system and device for transmitting data

  • US 9,402,176 B2
  • Filed: 08/13/2012
  • Issued: 07/26/2016
  • Est. Priority Date: 09/15/2011
  • Status: Active Grant
First Claim
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1. A data transmission method comprising:

  • a Mobility Management Entity (MME) receiving a data transmission message, sent from a user equipment, carrying a Packet Data Network (PDN) Connectivity Request message and a data packet to be transmitted;

    the MME establishing a PDN connection only at a core network side; and

    the MME sending the data packet to be transmitted, to a Serving Gateway (SGW) over the PDN connection to instruct the SGW to send the data packet to be transmitted, to a Packet Data Gateway (PGW) over the PDN connection;

    wherein after the MME receives the data transmission message and before the MME establishes the PDN connection at the core network side, the method further comprises;

    the MME determining from subscription information of the user equipment whether a small data transfer feature is applicable to the data packet to be transmitted; and

    wherein the MME establishing the PDN connection at the core network side comprises;

    the MME establishing the PDN connection only at the core network side after the MME determines that the small data transfer feature is applicable to the data packet to be transmitted.

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