Safety parameter modification method and base station

A security parameter and base station technology, applied in the field of communication, can solve problems such as waste, multiple transmission resources and processing resources
CN102833741AInactive Publication Date: 2012-12-19ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ZTE CORP
Publication Date
2012-12-19
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a safety parameter modification method and a base station. The method comprises the following steps that: an eNB (evolved Node) receives a UE (User Equipment) context modification request message sent by a MME (Mobility Management Entity), wherein a novel safe key is carried in the UE context modification request message; the eNB generates a new safety parameter according to the safe key carried in the UE context modification request message; a RRC (Radio Resource Control) connection redistribution message with the new safety parameter to UE; if the switching is failed in a cell, the UE sends a RRC connection reestablishment request message to the eNB; and after the eNB receives the RRC connection reestablishment request message sent by the UE, the RRC connection redistribution message with the new safety parameter is sent to the UE. After the technical scheme disclosed by the invention is adopted, the problem of great waste on transmission resources and processing resources in the process of modifying the safety parameter in the prior art is solved.
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Description

technical field

[0001] The invention relates to the field of communication technology, in particular to a method for modifying a security parameter and a base station. Background technique

[0002] In the long-term evolution (LTE, Long Term Evolution) system, the mobility management entity (MME, Mobility Management Entity) will save the UE context of the successfully registered user equipment (UE, User Equipment), and at the same time, the MME will establish a message through the initial UE context, The UE context is notified to an evolved base station (eNB, evolved Node B), and when the eNB allocates radio resources for the UE or makes a handover decision, the UE context is used as a basis.

[0003] UE context includes: maximum aggregate bit rate (AMBR, Aggregate Maximum Bit Rate), UE security capabilities, security keys, evolved radio access bearer (ERAB, Evolved Radio Access Bear) information, different system / frequency priority user identification, circuit Circuit Switc...

Claims

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