Key setting method in radio network controller (RNC) and wireless network controller as well as terminal

A wireless network and controller technology, applied in the field of communication, can solve the problem of inability to realize the information exchange between the target RNC and the UE, and achieve the effect of improving security

Inactive Publication Date: 2012-05-23
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0003] In the SRNS Relocation process in which the UE does not participate in the prior art, after switching to the target RNC, the UE does not ...

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  • Key setting method in radio network controller (RNC) and wireless network controller as well as terminal
  • Key setting method in radio network controller (RNC) and wireless network controller as well as terminal
  • Key setting method in radio network controller (RNC) and wireless network controller as well as terminal

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Embodiment Construction

[0042] In order for those skilled in the art to further understand the features and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. The accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

[0043] In the prior art, when the terminal UE is redirected, that is, when the source RNC is handed over to the target RNC, the SRNS Relocation (Serving Radio Network Subsystem Relocation, Serving Radio Network Subsystem Relocation) process that the UE does not participate in is as follows figure 1 shown, including the following steps:

[0044] In step 101, the source RNC initiates an SRNS Relocation procedure in which the UE does not participate.

[0045]Step 102, the source RNC calculates a new key CKu1 / IKu1 based on the key CKu / IKu used by itself, and forwards the redirection request message to the target RNC through ...

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Abstract

The embodiment of the invention provides a key setting method in a radio network controller (RNC) and a wireless network controller as well as a terminal. When a source RNC executes a serving radio network subsystem (SRNS) relocation flow which is not anticipated by a user equipment (UE), the method comprises the following steps that: a target RNC receives a key transmitted by the source RNC, and the key is obtained by deriving a key utilized by the source RNC; the target RNC encrypts a first downlink radio resource control (RRC) message according to the key transmitted by the source RNC and transmits the encrypted first downlink RRC message to the UE, and the encrypted first downlink RRC message includes information that the target RNC supports a universal key holder (UKH); the target RNC receives an uplink RRC message transmitted by the UE, and the uplink RRC message includes the information that the UE supports the UKH; and the target RNC acquires a new key to encrypt a second downlink RRC message and transmits the second downlink RRC message to the UE. The embodiment realizes the information interaction between the target RNC and the UE and the isolation of the key.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a key setting method in RNC handover, a radio network controller and a terminal. Background technique [0002] In UMTS (Universal Mobile Telecommunications System, universal mobile communication system), with the adoption of HSPA (High Speed ​​Packet Access, high-speed packet access) technology, the 3GPP standard proposes research on HSPA+, that is, the evolution of HSPA. Improve the system security after the evolution of the HSPA+ flat architecture, and also start the UTRAN (Universal Terrestrial Radio Access Network, Universal Terrestrial Radio Access Network, Universal Terrestrial Radio Access Network) key enhancement research project. The purpose of this research project is to introduce the key architecture of E-UTRAN into the HSPA+ network, and realize the same security level of HSPA+ and E-UTRAN. In the HSPA+ network, the enhanced RNC (RadioNetwork Controller, radio ...

Claims

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Application Information

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IPC IPC(8): H04W12/04H04W36/10H04W12/03H04W12/041H04W12/0431
Inventor 刘晓寒陈璟
Owner HUAWEI TECH CO LTD
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