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Update method of air interface secret key, core net node and radio access system

A core network node and update method technology, which is applied in wireless communication, electrical components, security devices, etc., can solve the problem that user communication security cannot be guaranteed, and achieve the effect of improving communication security and ensuring forward security.

Inactive Publication Date: 2010-12-01
江苏悦达数梦技术有限公司
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Problems solved by technology

[0010] The main purpose of the present invention is to provide an air interface key update method, a core network node and a wireless access system to solve the problem in the related art that the user's communication security cannot be guaranteed because the key is the same during SRNC migration

Method used

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  • Update method of air interface secret key, core net node and radio access system
  • Update method of air interface secret key, core net node and radio access system
  • Update method of air interface secret key, core net node and radio access system

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] SRNC migration involved in the wireless access system using UTRAN, such as image 3 and Figure 4 As shown, core network nodes (SGSN+ or MSC+), source RNC (ie SRNC), target RNC, Node B and UE are involved. In the wireless access system adopting HSPA+, Node B+ can be regarded as the combination of Node B and RNC. The two are a physical entity, but they are still two different logical entities. It should be noted that the Node B+ supporting the enhanced security key level in the embodiment of the present invention may also be equivalent to an upgraded RNC (RNC+) in UMTS, and the SRNC in the embodiment of the present invention is equivalent to the source RNC (source Node B+) , the DRNC is equa...

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Abstract

The invention discloses an update method of an air interface secret key, a core net node and a radio access system, wherein the update method comprises the following steps: receiving a migration finish indication message of a target radio network controller (RNC) by the core net node, wherein the migration finish indication message is used for indicating user equipment (UE) to successfully migrate to a target RNC from a source RNC; using secret key parameter to calculate a strengthening key secret of a next hop, and the secret key parameter comprises a middle secret key and a current strengthening secret key; and sending the strengthening secret key of the next hop to the target RNC. The invention guarantees forward direction safety of the users in the process of communication and improves integrally communication safety of the wireless access system.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular, to a method for renewing an air interface key, a core network node, and a wireless access system when a SRNC (Serving Radio Network Controller, Serving Radio Network Controller) of a wireless communication system migrates . Background technique [0002] 3GPP (3rd Generation Partnership Project, third generation partnership project) adopted Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, referred to as "OFDM") and Multiple-Input Multiple-Output (Multiple-Input Multiple-Output, referred to as "MIMO") technology completes the future evolution road HSPA+ of HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access) and HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access). HSPA+ is an enhanced technology of 3GPP HSPA (including HSDPA and HSUPA), providing HSPA operators with a low-complex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W36/10H04W92/10H04W12/0433
CPCH04W12/04H04W12/08H04W12/041H04W12/0431
Inventor 冯成燕
Owner 江苏悦达数梦技术有限公司
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