I-CSCF server and method based on heterogeneous computing

Abstract

The invention discloses an I-CSCF server and method based on heterogeneous computing and relates to the field of communications. The I-CSCF method comprises the steps of configuring an FPGA chip in the I-CSCF server, wherein the FPGA is taken as a heterogeneous accelerator and processes information in parallel with its CPU; connecting the I-CSCF server with a P-CSCF (Proxy-Call Session Control Function) in an IMS (IP Multimedia Subsystem) system and receiving a message of a user to initiate a register or call a request; when a user device initiates the register, the I-CSCF server obtains userdata and an S-CSCF address to which the user is affiliated from an HSS (Home Subscriber Server) network element, encrypting user information via the FPGA and storing locally; and when the user calls the request, enabling the FPGA to decrypt the user information to obtain the user data and the S-CSCF address to which the user is affiliated, and forward to the S-CSCF in the IMS system to finish thatthe user calls the request. According to the I-CSCF server and method, not only can the security of data storage be guaranteed, but also the CPU loss of the system is reduced, and the reliability ofthe I-CSCF server is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to an I-CSCF server and method based on heterogeneous computing. Background technique [0002] The I-CSCF server is the core unit of the IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) network. During the session processing process, it queries the home user server HSS, obtains the S-CSCF address that provides services for a certain user from the HSS server, and According to the S-CSCF address obtained from the HSS, the SIP request from other networks is routed to the S-CSCF address to realize rich IMS service functions. Home Subscriber Server (HSS) is an important part of the control layer in the IMS system. HSS supports the main user database of IMS network entities for handling calls / sessions, HSS can handle user identification, number and address information; user security information; user location information; user list information. [0003] Heterogeneous computing mainly ref...

AI Technical Summary

Problems solved by technology

At the same time, because data encryption and decryption consume a lot of CPU power, especially in large-scale concurrent calls, frequently read data, the system CPU rises and causes alarms and call losses.

In view of the above-mentioned technical problems, the present invention considers introducing the heterogeneous computing of FPGA into the I-CSCF server to solve the security problem of data storage and the problem of excessive CPU power consumption in the I-CSCF server