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WO2010003452A1 - Procédé et dispositif destinés à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau et système de communication comprenant un tel dispositif - Google Patents

Procédé et dispositif destinés à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau et système de communication comprenant un tel dispositif Download PDF

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Publication number
WO2010003452A1
WO2010003452A1 PCT/EP2008/058799 EP2008058799W WO2010003452A1 WO 2010003452 A1 WO2010003452 A1 WO 2010003452A1 EP 2008058799 W EP2008058799 W EP 2008058799W WO 2010003452 A1 WO2010003452 A1 WO 2010003452A1
Authority
WO
WIPO (PCT)
Prior art keywords
mme
network element
network
enb
pool
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/EP2008/058799
Other languages
English (en)
Inventor
Andreas Platzer
Olaf Pollakowski
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.)
Nokia Solutions and Networks Oy
Original Assignee
Nokia Siemens Networks Oy
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 Nokia Siemens Networks Oy filed Critical Nokia Siemens Networks Oy
Priority to PCT/EP2008/058799 priority Critical patent/WO2010003452A1/fr
Publication of WO2010003452A1 publication Critical patent/WO2010003452A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0876—Aspects of the degree of configuration automation
    • H04L41/0886—Fully automatic configuration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device

Definitions

  • Method and device for changing at least one first network element in a pool of first network elements and communication system comprising such device
  • the invention relates to a method and to a device for changing at least one first network element in a pool of first network elements and to a communication system comprising such device.
  • MNOs Mobile Network Operators
  • ARPU average revenue per user
  • OPEX operational expenditures
  • EPS E-UTRAN/EPC
  • features can be provided for network elements and their management system to cope with the system's complexity and to avoid errors of human operators, i.e., assuring that the network is well configured, optimized and substantially fault-free.
  • the investment in such features can thus be traded off against OPEX reduction feasible.
  • NGMNs Next Generation Mobile Networks
  • GSM Global System for Mobile Communications
  • MME Mobility Management Entity
  • eNB evolved NodeB
  • Sl-interface Sl-interface
  • MMEs having the same MME Group ID (MMEGI) .
  • MMEs there is a MME Pool Area comprising at least one eNB (in particular a lot of such eNBs) , wherein preferably each eNB of the MME Pool Area is connected to each MME of the Pool of
  • the MME Pool Area may preferably be understood as an area within which a user equipment (UE) may be served without any need to change the serving MME.
  • the MME Pool Area may be supplied by one or more MMEs (constituting said "Pool of MMEs") in parallel.
  • MME Pool Areas are a collection of complete Tracking Areas. MME Pool Areas may further overlap with one another.
  • a Globally Unique MME Identifier may comprise a Mobile Country Code (MCC) , a Mobile Network Code (MNC) and an MME Identifier (MMEI) . Furthermore, the MMEI may comprise the MME Group ID (MMEGI) and an MME Code (MMEC), i.e. the MME Identifier can be noted as
  • GUMMEI MCC
  • OAM interfaces of the MMEs and of the eNBs allow for a configuration of the network nodes.
  • the operator has to manually ensure consistency for any status change or use case.
  • the operator has to manually update the new MME as well as all eNBs of the associated MME Pool Area. This approach is error-prone, costly and it may require an intricate exchange of information between radio and core management systems, which still is bulky and often "paper"-based.
  • the problem to be solved is to overcome the disadvantages stated above and in particular to provide an efficient approach of changing or adding a member of a pool of first network elements regarding its relationship to an associated group of second network elements .
  • an interface between the at least one first network element and the at least one second network element is configured or set up.
  • This approach advantageously allows for an automation of adding a new network element, e.g., a new MME to an MME Pool.
  • a new network element e.g., a new MME to an MME Pool.
  • updates are due to be processed for numerous network elements.
  • the operator may just introduce the new MME, the updates required are performed by the system via, e.g., means of self-configuration.
  • the MME is configured including setting up its MMEGI.
  • the eNBs associated with the particular MME Pool Area are supplied with the information required for establishing a Sl-interface to this changed MME, e.g., its IP address. Then, the eNBs may set up the Sl-interfaces.
  • changing the MME may comprise adding, replacing, moving, deleting, updating, restarting, etc. an MME.
  • first network elements may be or be associated with MMEs; alternatively, the first network elements may be or be associated with eNBs. Accordingly, the second network elements are of type eNB or of type MME.
  • changing the at least one first network element comprises:
  • Changing the at least one first network element may reflect any sort of physical or logical change, amendment, replacement, update or the like; it may also refer to a change of the network element's identity or identification, e.g. , the GUMMEI. It is also possible that the second network element is changed (e.g., added, replaced, moved, removed, updated or the like) .
  • the yet established interface may be utilized for conveying a message from the at least one first network element to the at least second network element or vice versa indicating that the sending network element will be removed. Then, the receiving network element may deactivate the interface to this network element (which is (to be) removed) .
  • the established interface can be configured by messages conveyed via said interface.
  • the first network element is a mobility management entity (MME) .
  • MME mobility management entity
  • the second network element is a base station, a radio station or a NodeB, in particular an evolved NodeB (eNB) .
  • eNB evolved NodeB
  • the method comprises the step:
  • the at least one second network element is identified and is provided with information regarding the at least one first network element.
  • the at least one second network element is identified and the at least one first network element is provided with information regarding the at least one second network element.
  • the interface comprises an Sl-interface between each second network element and between the at least one first network element.
  • a configuration function is provided, wherein the at least first network element registers with said configuration function and/or wherein the at least second network element registers with said configuration function.
  • an OAM system or a central entity is used for updating said configuration function.
  • the said configuration function is updated by at least one notification.
  • the at least one second network elements is informed by the configuration function.
  • the at least one second network elements is informed by the configuration function.
  • the at least one first network elements is informed by the configuration function.
  • the at least one second network element is informed by the configuration function.
  • a device comprising a and/or being associated with a processor unit and/or a hard-wired circuit and/or a logic device that is arranged such that the method as described herein is executable on said processor unit.
  • the device is a communication device, in particular a or being associated with a network element or an operation and maintenance component.
  • a communication system comprising the device as described herein.
  • Fig.l shows a diagram comprising MMEs gathered in a Pool of
  • MMEs and eNBs gathered in a MME Pool Area, wherein each MME has an interface to each eNB;
  • Fig.2 shows an information flow diagram between an eNB and an MME-PA-SCF
  • Fig.3 depicts an information flow diagram comprising an MME and the MME-PA-SCF;
  • Fig.4 shows the eNB, the MME and the MME-PA-SCF in an information flow diagram.
  • the approach provided herein may be applicable in particular regarding various use cases, e.g., adding, moving, replacing, removing a network element of a first type from a pool of network elements of said first type.
  • Each such network element of first type is in particular associated with at least one further network element of a second type, e.g., an evolved NodeB (eNB) , establishing a Pool Area for the network elements of the first type (constituting the Pool of network elements of said first type) .
  • eNB evolved NodeB
  • the network elements of first type are exemplary chosen to be Mobility Management Entities (MMEs) with a particular MME Group ID (MMEGI) thereby constituting a Pool of MMEs 101 according to Fig.l.
  • MMEs Mobility Management Entities
  • MMEGI MME Group ID
  • each such eNBl to eNB3 is connected to each MMEl to MME3 of the Pool 101. If, e.g., a further MMEn is connected to the Pool 101, the eNBs of the MME Pool Area 102 need to get aware of this MMEn and vice versa. According to the approach provided, adding said MMEn is sufficient to automatically establish all interfaces required between the MMEn and all eNBs of the Pool Area 102.
  • the interfaces between the eNBs and the MMEs are preferably Sl-interfaces .
  • the use case "Addition of a new MME to an MME Pool Area (including the case where the first MME of a MME Pool is introduced” is just an example.
  • the approach provided is applicable to various other use cases as well, e.g., replace, delete, move, update of a network element, e.g. a MME and/or a eNB . It is further noted that more than one MME may be processed accordingly.
  • a eNB can be changed and the at least one MME is updated accordingly.
  • the approach provided allows a consistent provision of identical and/or dependent data sets for different Network Elements (NEs) or it may enable an update of NEs due to changes in another NE.
  • consistency of data is provided automatically throughout the system at a significant reduction of OPEX.
  • only one NE may be configured, changed (also replaced or removed) or installed by an operator and affected NEs are automatically identified and updated and/or configured by the system itself.
  • MME-PA-SCF MME Pool Area Self-Configuration Function
  • MME-PA-SCF is an exemplary functionality that may be deployed or be associated with at least one network element and/or a central component of the system providing the automated functionality as described herein. It may, e.g., be arranged in a way to actively or passively communicate with network elements and/or it may be arranged to process notifications of an OAM entity.
  • This MME-PA-SCF may in particular provide the following:
  • (c) A functionality to provide either the new MME (to be added to the pool) or the identified eNBs with information required to set up interfaces, in particular Sl-interfaces .
  • MME-PA- SCF Logical MME Pool Area Self-Configuration Function
  • the MME-PA-SCF may be provided with related information.
  • the GUMMEI and the IP address of the new MME are provided.
  • the GUMMEI may be
  • GUMMEI MCC
  • MMEC MCC
  • MME-PA-SCF There are several possibilities to update the MME-PA-SCF with MME-related information, for example: (a) Each MME registers itself at the MME-PA-SCF, providing its assigned GUMMEI and its IP address.
  • the MME may have been configured before registration with classical OAM mechanisms .
  • the OAM system configuring the MME may also update the MME-PA-SCF with MME related information.
  • the MME-PA-SCF may set up and/or modify a table as follows comprising information from a eNB registration message.
  • the table comprises for every MME the MME Pool it is associated with as well as its IP address.
  • the MME-PA-SCF is updated as well.
  • the MME-PA-SCF may be provided with related information, preferably, the MMEGI and the IP address of the new eNB.
  • the MME-PA-SCF may set up a table as follows comprising information from the eNB registration message. Hence, the table comprises for every eNB the MME Pool serving this eNB (with the MMEGI) and its IP address.
  • the MME-PA-SCF is updated as well.
  • the MME-PA-SCF checks the MMEGI presented in the registration message for matches in the eNB-Table. In other words, the eNBs of the MME Pool Area associated to the MME Pool identified via the MMEGI are identified.
  • the MME-PA-SCF informs the identified eNBs about the presence of a new MME in their MME Pool and about the MME IP address. This may be achieved, e.g., as follows: (bl) The eNBs are informed directly by the MME-PA-SCF. (b2) The MME-PA-SCF configures the information in/for a (already existing) "master" MME of the same pool, said master forwarding the information to the identified eNBs. (b3) The MME-PA-SCF uses OAM mechanisms to update the eNBs . (c) The eNB sets up an Sl-interface to the new MME using the supplied IP address.
  • a new MME 5 is announced with the following information at the MME-PA-SCF
  • the eNBs of the associated MME Pool Area are eNB 2, eNB 3 and eNB 5, see table below:
  • eNBs (eNB_2, eNB_3 and eNB_5) need to be informed about the presence of the new MME_5 and about its IP address IP_5.
  • MME Pool Area Self-Configuration (MME triggered Sl set-up)
  • the MME-PA-SCF checks the MMEGI presented in the registration message for matches in the eNB-Table. In other words, the eNBs of the MME Pool Area associated to the MME Pool identified via the MMEGI are identified
  • the MME-PA-SCF informs the MME about the identified eNBs and their IP addresses. This may be achieved, e.g., as follows : (bl) The MME is informed directly by the MME-PA-SCF. (b2) The MME-PA-SCF uses OAM mechanisms to update the MME.
  • the MME sets up the Sl-interface to the identified eNBs .
  • Scenario 1 Core and Radio Network operated by one MNO
  • the MME-PA-SCF can be implemented and/or logically associated with the NM.
  • the MME-PA- SCF is implemented in the NM in particular if information exchange is established or allowed between the OAM systems.
  • the MME-PA-SCF may be implemented also in a new node connected via direct and/or standardized interfaces to the MMEs and/or to the eNBs.
  • Fig.2 to Fig.4 show information flow diagrams in case the MME-PA-SCF is implemented in a new node and that the NEs register directly with this node.
  • Fig.2 shows an information flow diagram between an eNB and an MME-PA-SCF.
  • the eNB sends a message via, e.g., an application layer protocol, "eNB self announcement" comprising as parameters the eNB-Id, the MMEGI and its own IP address.
  • the MME-PA-SCF sends a eNB self announcement response for, e.g., confirmation purposes.
  • the eNB registers at the MME-PA-SCF.
  • Fig.3 depicts an MME that sends an MME self announcement message comprising the GUMMEI and its own IP address as parameters to the MME-PA-SCF.
  • the MME-PA-SCF conveys an MME self announcement response thereby confirming registration of the MME with the MME-PA-SCF.
  • Fig.4 shows the eNB, the MME and the MME-PA-SCF in an information flow diagram.
  • the MME-PA-SCF pushes information of the MMEs' IP addresses to the eNB.
  • the eNB provides a response for confirmation purposes.
  • the eNB sends a eNB Sl-interface setup request to the MME and receives a response for confirmation purposes.
  • the impacted eNBs are identified automatically by the MME-PA-SCF.
  • the new MME and the identified eNBs are updated automatically with the required information.
  • the Sl-interfaces are set up automatically.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un procédé et un dispositif sont fournis de manière à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau, ledit ensemble de premiers éléments de réseau étant associé au moins à un deuxième élément de réseau, le procédé comprenant les étapes consistant à : (i) identifier le ou les deuxièmes éléments de réseau ; et (ii) configurer ou établir une interface entre le ou les premiers éléments de réseau et le ou les deuxièmes éléments de réseau. En outre, on propose un système de communication qui comprend ledit dispositif.
PCT/EP2008/058799 2008-07-07 2008-07-07 Procédé et dispositif destinés à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau et système de communication comprenant un tel dispositif Ceased WO2010003452A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/058799 WO2010003452A1 (fr) 2008-07-07 2008-07-07 Procédé et dispositif destinés à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau et système de communication comprenant un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/058799 WO2010003452A1 (fr) 2008-07-07 2008-07-07 Procédé et dispositif destinés à changer au moins un premier élément de réseau dans un ensemble de premiers éléments de réseau et système de communication comprenant un tel dispositif

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WO2010003452A1 true WO2010003452A1 (fr) 2010-01-14

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CN102123464A (zh) * 2011-01-21 2011-07-13 大唐移动通信设备有限公司 一种选择mme的方法及装置
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WO2012019471A1 (fr) * 2010-08-12 2012-02-16 华为技术有限公司 Procédé de transfert intercellulaire, nœud d'accès et station donatrice
CN102378145A (zh) * 2010-08-12 2012-03-14 华为技术有限公司 切换方法、接入节点和宿主站点
CN102123464A (zh) * 2011-01-21 2011-07-13 大唐移动通信设备有限公司 一种选择mme的方法及装置
CN102123464B (zh) * 2011-01-21 2013-08-14 大唐移动通信设备有限公司 一种选择mme的方法及装置
CN103782543B (zh) * 2011-08-31 2017-05-31 瑞典爱立信有限公司 用于确定核心网络节点的池和基站之间的关联的方法和服务器
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CN103782543A (zh) * 2011-08-31 2014-05-07 瑞典爱立信有限公司 用于确定核心网络节点的池和基站之间的关联的方法和服务器
WO2014201692A1 (fr) * 2013-06-21 2014-12-24 华为技术有限公司 Procédé, dispositif et système pour la sélection d'une entité de gestion de la mobilité (mme)
EP3793230A3 (fr) * 2015-03-12 2021-05-26 NEC Corporation Système de communication, appareil de commande de communication, appareil de noeud et procédé de communication
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US11172273B2 (en) 2015-08-10 2021-11-09 Delta Energy & Communications, Inc. Transformer monitor, communications and data collection device
US10055869B2 (en) 2015-08-11 2018-08-21 Delta Energy & Communications, Inc. Enhanced reality system for visualizing, evaluating, diagnosing, optimizing and servicing smart grids and incorporated components
US10055966B2 (en) 2015-09-03 2018-08-21 Delta Energy & Communications, Inc. System and method for determination and remediation of energy diversion in a smart grid network
US11196621B2 (en) 2015-10-02 2021-12-07 Delta Energy & Communications, Inc. Supplemental and alternative digital data delivery and receipt mesh net work realized through the placement of enhanced transformer mounted monitoring devices
US10476597B2 (en) 2015-10-22 2019-11-12 Delta Energy & Communications, Inc. Data transfer facilitation across a distributed mesh network using light and optical based technology
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