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Signaling for reposition and data ciphering method, system and radio network controller

A wireless network and data encryption technology, applied in the field of mobile communication, can solve the problems of unequal key streams and inability to perform encrypted communication, and achieve the effect of encrypted communication

Active Publication Date: 2009-03-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide a method, system and radio network controller for relocation signaling and data encryption, so as to overcome the situation of encrypted signaling communication between UE and SRNC before initiating SRNS relocation. After the positioning is completed, there may be a problem that encrypted communication cannot be performed between TRNC and UE due to the unequal key streams at both ends.

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  • Signaling for reposition and data ciphering method, system and radio network controller
  • Signaling for reposition and data ciphering method, system and radio network controller
  • Signaling for reposition and data ciphering method, system and radio network controller

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Embodiment Construction

[0058] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0059] The core of the present invention is to provide a method for relocation signaling and data encryption. Specifically, the SRNC initializes the saved COUNT-C and fills it into the RRC container. The implementation method is that when there is a new encryption configuration that has not been activated, SRNC initializes its saved COUNT-C with the latest transmitted START value or 0 according to the state of the key value and fills it in the RRC container. After the relocation is completed, TRNC will use RRC The encrypted information such as HFN and SN (or CFN) of the container encrypts the signaling and user data, so that the key stream at the TRNC side is the same as the key stream generated after the UE side initializes the HFN, and then...

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Abstract

The invention discloses a repositioned singling and a method for encrypting data, which comprises the following steps: receiving initial encrypting sequence numbers which are sent by an SRNC by the TPNC, adopting an encrypting RRC singling and user data of the initial encrypting sequence numbers by the TPNC, and then sending an encrypted wireless resource control singling and the user data to a UE. The invention further discloses the repositioned singling and a system with encrypting data, and a wireless network controller. The invention can enable the TPNC to be the same with the encrypting sequence numbers of both ends of the UE, and then can enable the TPNC and the both ends of the UE to obtain clear text data of the other party through decrypting, can guarantee the realization of the encrypting protection of RRC singling and the user data during the repositioning process, and can realize encrypting communication between the UE and the TRNC.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for realizing radio resource control (Radio Resources Control, RRC) signaling and user data encryption protection related to Serving Radio Network Subsystem (Serving Radio Network Subsystem, SRNS) relocation. Background technique [0002] The basic structure of Universal Mobile Telecommunication System (UMTS) is as follows: figure 1 shown. In UMTS, a user equipment (User Equipment, UE) accesses a UMTS Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN) through an air interface. UTRAN is composed of a group of radio network subsystems (Radio Network Subsystem, RNS). Each RNS includes a radio network controller (Radio Network Controller, RNC) and one or more base stations (NodeB), and the connection of UE access network is UE-NodeB-RNC-core network (Core Network, CN). [0003] Usually, when a UE is connected to the UTRAN,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L9/00H04L12/28H04W12/02
Inventor 张凡
Owner DATANG MOBILE COMM EQUIP CO LTD
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