Air interface key update method, core network node and wireless access system

A core network node and update method technology, applied in wireless communication, usage of multiple keys/algorithms, security devices, etc., can solve problems such as inability to guarantee user communication security, achieve improved communication security, and ensure forward security Effect

Inactive Publication Date: 2018-01-23
江苏悦达数梦技术有限公司
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  • Claims
  • Application Information

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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

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  • Air interface key update method, core network node and wireless access system
  • Air interface key update method, core network node and wireless access system
  • Air interface key update method, core network node and wireless 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 a method for updating an air interface key, a core network node and a wireless access system, wherein the method includes: the core network node receives a migration completion indication message from a target radio network controller RNC, and the migration The completion indication message is used to indicate that the user equipment UE has successfully migrated from the source RNC to the target RNC; the key parameter is used to calculate the next hop enhanced key, and the key parameter includes the intermediate key and the current enhanced key; the The next hop enhanced key is sent to the target RNC. Through the present invention, the forward security of the user in the communication is guaranteed, and the communication security of the wireless access system is improved as a whole.

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 when a SRNC (Serving Radio Network Controller, Serving Radio Network Controller) of a wireless communication system migrates, a core network node and a wireless access system. 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), which provides HSPA operators with a low-comple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/16H04W12/04H04W36/10H04W92/10H04W12/0433
CPCH04W12/08H04W12/041H04W12/0431
Inventor 李志军张晓强田勇
Owner 江苏悦达数梦技术有限公司
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