WO2017048434A1 - Apparatus and method for mobility procedure involving mobility management entity relocation - Google Patents

Apparatus and method for mobility procedure involving mobility management entity relocation Download PDF

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Publication number
WO2017048434A1
WO2017048434A1 PCT/US2016/047101 US2016047101W WO2017048434A1 WO 2017048434 A1 WO2017048434 A1 WO 2017048434A1 US 2016047101 W US2016047101 W US 2016047101W WO 2017048434 A1 WO2017048434 A1 WO 2017048434A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
control plane
network
mme
target
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2016/047101
Other languages
English (en)
French (fr)
Inventor
Soo Bum Lee
Adrian Edward Escott
Gavin Bernard Horn
Anand Palanigounder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to EP16757786.5A priority Critical patent/EP3351030B1/en
Priority to BR112018005017-2A priority patent/BR112018005017B1/pt
Priority to CN201680052920.5A priority patent/CN108141754B/zh
Priority to JP2018513346A priority patent/JP6812421B2/ja
Priority to KR1020187010590A priority patent/KR102355340B1/ko
Publication of WO2017048434A1 publication Critical patent/WO2017048434A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/037—Protecting confidentiality, e.g. by encryption of the control plane, e.g. signalling traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information

Definitions

  • One feature provides a device (e.g., user device) that comprises a wireless communication interface adapted to transmit and receive data wirelessly to and from a network, and a processing circuit communicatively coupled to the wireless communication interface.
  • the processing circuit may be adapted to identify entry into a new service area, transmit a service area update request to a network device associated with the network, receive a control plane message from the network indicating control plane device relocation or a key refresh due to a service area change in response to transmitting the service area update request, and derive a first key based in part on data included in the control plane message received and a second key shared between the device and a key management device, the key management device associated with the network.
  • the service area update request is associated with at least one of a tracking area update and/or a routing area update and changing service areas includes at least one of changing tracking areas and/or changing routing areas.
  • the control plane message is a non-access stratum security mode command
  • the key management device is a session key management function (SKMF) device
  • the device is a user equipment
  • the device context is a user equipment context associated with the user equipment
  • the second key is a session root key for an authentication session.
  • SKMF session key management function
  • deriving the first key KASME is further based in part on a counter value Key Count maintained at the SKMF device.
  • the data included in the handover command further includes the counter value Key Count.
  • Another feature provides a method for performing a tracking area update involving mobility management entity (MME) relocation or a change of tracking area at the MME, the method comprising receiving a tracking area update (TAU) request from a user equipment (UE) for which the MME does not have a UE context associated with the UE or for which the UE has changed tracking areas, transmitting a request for a first key KASME to a session key management function (SKMF) device, receiving the first key KASME from the SKMF device, and transmitting a non-access stratum (NAS) security mode command (SMC) to the UE that includes data allowing the UE to derive the first key KASME-
  • the method further comprises transmitting a UE context request to a source MME that previously served the UE if the MME does not have the UE context.
  • the method further comprises receiving the UE context from the source MME in response to transmitting the UE context request.
  • the method further comprises
  • SKMF derives an MME specific key KASME for a given MME and thus the MME's GUMMEI may be used in the KASME key derivation process.
  • a NAS Count value may be initialized to zero (0) for a new KASME- In one example, the old NAS Count values are not discarded if tracking area update(s) doesn't complete.
  • the UE and the SKMF may maintain a Key Count counter value and use it for KASME derivation. This may be done to avoid deriving the same KASME in cases where the UE moves back to an old MME (e.g., source MME).
  • FIG. 17 illustrates a block diagram of a device 1700 (e.g., user device/equipment) according to one aspect of the disclosure.
  • the device 1700 may include a handover command receiving circuit 1702, a first key derivation circuit 1704, and/or a handover confirmation transmission circuit 1706, which may all be communicatively coupled via a communication bus 1708.
  • Each of the circuits 1702, 1704, 1706 of the device 1700 may be specialized circuits (e.g., ASICs, FPGAs, etc.) that are specifically wired to perform their respective specific functions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
PCT/US2016/047101 2015-09-15 2016-08-15 Apparatus and method for mobility procedure involving mobility management entity relocation Ceased WO2017048434A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16757786.5A EP3351030B1 (en) 2015-09-15 2016-08-15 Apparatus and method for mobility procedure involving mobility management entity relocation
BR112018005017-2A BR112018005017B1 (pt) 2015-09-15 2016-08-15 Aparelho e método para procedimento de mobilidade envolvendo relocação de entidade de gerenciamento de mobilidade
CN201680052920.5A CN108141754B (zh) 2015-09-15 2016-08-15 用于涉及移动性管理实体重定位的移动性过程的装置和方法
JP2018513346A JP6812421B2 (ja) 2015-09-15 2016-08-15 モビリティ管理エンティティ再配置を伴うモビリティ手順のための装置および方法
KR1020187010590A KR102355340B1 (ko) 2015-09-15 2016-08-15 이동성 관리 엔티티 재배치를 수반하는 이동성 절차를 위한 장치 및 방법

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562218863P 2015-09-15 2015-09-15
US62/218,863 2015-09-15
US15/089,396 US9883385B2 (en) 2015-09-15 2016-04-01 Apparatus and method for mobility procedure involving mobility management entity relocation
US15/089,396 2016-04-01

Publications (1)

Publication Number Publication Date
WO2017048434A1 true WO2017048434A1 (en) 2017-03-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/047101 Ceased WO2017048434A1 (en) 2015-09-15 2016-08-15 Apparatus and method for mobility procedure involving mobility management entity relocation

Country Status (8)

Country Link
US (3) US9883385B2 (https=)
EP (1) EP3351030B1 (https=)
JP (1) JP6812421B2 (https=)
KR (1) KR102355340B1 (https=)
CN (1) CN108141754B (https=)
BR (1) BR112018005017B1 (https=)
TW (2) TWI705728B (https=)
WO (1) WO2017048434A1 (https=)

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Also Published As

Publication number Publication date
EP3351030B1 (en) 2021-03-31
KR20180053373A (ko) 2018-05-21
US20200037155A1 (en) 2020-01-30
US10462656B2 (en) 2019-10-29
BR112018005017B1 (pt) 2024-02-27
TWI705728B (zh) 2020-09-21
CN108141754A (zh) 2018-06-08
US20170078874A1 (en) 2017-03-16
BR112018005017A2 (https=) 2018-10-02
TWI750130B (zh) 2021-12-21
US9883385B2 (en) 2018-01-30
JP2018527837A (ja) 2018-09-20
TW202037217A (zh) 2020-10-01
KR102355340B1 (ko) 2022-01-24
JP6812421B2 (ja) 2021-01-13
US11178543B2 (en) 2021-11-16
CN108141754B (zh) 2021-12-28
TW201713149A (zh) 2017-04-01
EP3351030A1 (en) 2018-07-25
US20180063707A1 (en) 2018-03-01

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