Methods and devices having a key distributor function for improving the speed and quality of a handover

A network access node, access node technology, applied in the direction of digital transmission systems, secure communication devices, electrical components, etc., can solve problems such as delayed conversion process, achieve accelerated conversion process, reduce delay, optimize key distribution and encryption The effect of key management

Inactive Publication Date: 2012-05-23
SIEMENS ENTERPRISE COMM GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This delays the conversion process

Method used

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  • Methods and devices having a key distributor function for improving the speed and quality of a handover
  • Methods and devices having a key distributor function for improving the speed and quality of a handover
  • Methods and devices having a key distributor function for improving the speed and quality of a handover

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Embodiment Construction

[0055] In the present invention figure 1 In the network access node shown in , a processor 3 is connected to a storage device 1 and a data communication device 2 via a bus 4 . The memory device stores the PMK-R0 key and the address codes of the second access nodes MAP2, . . . , MAPn of the network with network access nodes.

[0056] Figure 4 The mesh network according to the invention is shown connected to terminal devices STA. The network has five networking capable access nodes MAP1, MAP2, MAP3, MAP4, MAP5 and three forwarding nodes MP1, MP2, MP3, an authentication server AS and a mobile domain controller MDC. A non-networking-capable mobile station is connected to the network as a terminal STA.

[0057] image 3 explained Figure 4 Communication in the network shown in .

[0058] All network-capable access nodes MAP1 , MAP2 , MAP3 , MAP4 , MAP5 have already been authenticated at the authentication server AS and are therefore active components of the mesh network sho...

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Abstract

The invention relates to a network access node (MAP1) for a terminal (STA) that is wirelessly incorporated into the network, comprising: a) a memory (1) having at least one first key and address codes of second access nodes (MAP2,..., MAPn) for the terminal (STA), b) at least one data communication unit (2) for exchanging data with the second access nodes, c) connected to the memory (1) and the data communication unit (2), a processor (3) having functions for:; d) deriving second keys, among them second keys for securing the connection between the terminal (STA) and the second access nodes, from the first key, e) securely associating the terminal using a key derived from the first key, f) in response to the execution of function d), sending the second keys for securing the connection between the terminal (STA) and the second access nodes by the data communication device via secured connections and with addressing by the address codes, characterised in that the second keys further comprise the key used for step e).

Description

technical field [0001] The invention relates to a network access node for terminal devices wirelessly incorporated into a network, a network comprising at least one of these network access nodes, a method for preparing a handover procedure in the network A method for configuring the composition of the network, and a computer program having instructions corresponding to the method of the present invention. [0002] The invention can be used in Voice-over-IP and Video-on-Demand applications, especially in local networks, especially WLANs. The invention can be used exclusively in mesh networks. Background technique [0003] Wireless networks are increasingly being promoted in the home and office fields. The basic standard for such networks is the IEEE 802.11 standard. A mesh network is a wireless network with a flexible layout. The networking-capable nodes of the mesh network have features for detecting layout changes or for establishing alternate routes. [0004] Real-tim...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04L29/06H04W12/04
CPCH04L2209/80H04W12/04H04W36/0016H04L63/062H04L9/083H04L2463/061H04W12/041H04W12/0431
InventorT.加梅尔M.罗特M.巴尔C.施温根施勒格尔
OwnerSIEMENS ENTERPRISE COMM GMBH & CO KG