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Local forwarding method and system for user plane data, and local gateway

  • US 10,021,578 B2
  • Filed: 11/08/2016
  • Issued: 07/10/2018
  • Est. Priority Date: 01/05/2012
  • Status: Active Grant
First Claim
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1. A local switching method for user plane data, comprising:

  • deploying a Local Gateway (LGW) in a network;

    after allocating an IP address to a User Equipment (UE) or releasing an IP address of the UE, a public data network gateway notifying the allocation or release of the IP address of the UE to the LGW to which the UE belongs, and the LGW registering or deregistering the IP address of the UE; and

    after receiving an IP data packet forwarded by a source base station which is transmitted by a source UE to a target UE, the LGW judging whether the IP address of the target UE is registered on the LGW, and if so, transmitting the IP data packet to a target base station to which the target UE is connected.

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