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Method and system for managing empty mapping keys in radio communication system

A wireless communication system, air interface key technology, applied in wireless communication, security devices, electrical components, etc., can solve the problem of not knowing whether the target RNC supports the HSPA+ security function, etc.

Active Publication Date: 2010-09-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When SRNC+ makes a migration decision, it is likely that it does not know whether the target RNC supports HSPA+ security functions

Method used

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  • Method and system for managing empty mapping keys in radio communication system
  • Method and system for managing empty mapping keys in radio communication system
  • Method and system for managing empty mapping keys in radio communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This embodiment illustrates the method for deriving the mapping key: the integrity key IK, and / or the encryption key CK when SRNC+ decides to perform SRNC migration:

[0063] Derivation parameters of the mapped integrity key IK / encryption key CK except the intermediate key K ASMEU In addition, it includes at least one of the following parameters or any combination thereof: the selected encryption algorithm identification (enc-alg-ID), the selected integrity algorithm identification (int-alg-ID), and the frequency point allocated by the target RNC for the user equipment (UARFCN), the scrambling code (ScramblingCode) allocated by the target RNC for the user equipment, the user identifier (such as IMSI, TMSI, wireless network temporary identifier RNTI, etc.), the target RNC identifier, the start (START) parameter defined in UMTS, in UMTS Defined uplink or downlink integrity sequence number (COUNT-I) parameter, uplink or downlink radio resource control sequence number (RRC ...

Embodiment 2

[0077] This embodiment describes the management method of the air interface mapping key when the user migrates from the SRNC (SRNC+) supporting the HSPA+ security function to the RNC not supporting the HSPA+ security function. In this embodiment, the flattened Node B+ is regarded as an evolved RNC (RNC+), and the process uses an enhanced SRNC migration process, that is, the source RNC and the target RNC communicate directly without going through the transit of core network nodes . Specific process such as Figure 5 Shown:

[0078] Step 501, SRNC+ decides to perform SRNC migration.

[0079] The triggering conditions for this decision include:

[0080] Receive a measurement report from the user equipment;

[0081] Receive an uplink signaling transmission instruction sent by the target RNC to request cell update;

[0082] Receiving an uplink signaling transmission instruction sent by the target RNC requires URA update.

[0083] Step 502, SRNC+ according to the intermediate ...

Embodiment 3

[0095] This embodiment illustrates another example of SRNC+migration. In this embodiment, the message interaction between the SRNC+ and the target RNC needs to pass through the relay of the core network node CNN(+) (SGSN(+) or MSC / VLR(+)), such as Figure 6 Shown:

[0096] Step 601, SRNC+ decides to perform SRNC migration.

[0097] The triggering conditions for this decision include:

[0098] Receive a measurement report from the user equipment;

[0099] Receive an uplink signaling transmission instruction sent by the target RNC to request cell update;

[0100] Receiving an uplink signaling transmission instruction sent by the target RNC requires URA update.

[0101] Step 602, SRNC+ according to the intermediate key K ASMEU A map integrity key IK and / or a map encryption key CK is derived. If SRNC+ cannot determine whether the target RNC supports HSPA+ security functions, this operation is performed regardless of whether the target RNC supports HSPA+ security functions; i...

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Abstract

The invention provides a method and a system for managing empty mapping keys in a radio communication system. The method comprises: after an enhanced service radio network controller (SRNC+) makes a decision to carry out SRNC transfer, the SRNC+ sends empty key information comprising mapping keys to a target RNC.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for managing an air interface mapping key in a wireless communication system. Background technique [0002] 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) adopted Orthogonal Frequency Division Multiplexing (OFDM) and Multiple-Input Multiple-Output (MIMO) technologies in Release7 to complete HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access) and HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access), the future evolution road HSPA+. HSPA+ is an enhanced technology of 3GPP HSPA (including HSDPA and HSUPA), which provides HSPA operators with a low-complexity and low-cost smooth evolution path from HSPA to LTE. [0003] HSPA+ uses technologies such as high-order modulation (such as downlink 64QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation) and uplink 16QAM),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W92/22
CPCH04W36/0033H04W12/04H04W36/10H04W36/0038H04W88/12H04W12/041
Inventor 冯成燕
Owner ZTE CORP
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