US Patent No. 9,113,436

METHOD AND SYSTEM FOR INFORMATION TRANSMISSION


Patent No. 9,113,436
Issue Date August 18, 2015
Title Method And System For Information Transmission
Inventorship Tong Rui, Shenzhen (CN)
Mo Sun, Shenzhen (CN)
Xiaoyun Zhou, Shenzhen (CN)
Assignee ZTE CORPORATION, Shenzhen, Guangdong Province (CN)

Claim of US Patent No. 9,113,436

1. A method for information transmission, comprising:
an evolved packet data gateway (ePDG) notifying a policy and charging rules function (PCRF) entity of location information
of a user equipment (UE);

the PCRF entity establishing a S9 session with a broadband policy control function (BPCF) entity;
the PCRF entity sending the location information of the UE to the BPCF entity using the S9 session;
wherein, the location information comprises an identifier and tunnel information of the UE, the UE identifier comprises a
fixed network access identifier of the UE, and the tunnel information comprises local IP address information of the UE;

wherein, after the step of the PCRF entity sending the location information of the UE to the BPCF entity using the S9 session,
the ePDG entity sends an internet protocol security (IP-Sec) tunnel establishment success message to the user equipment.