WO2011068503A1 - Procédé et dispositif d'exploitation, d'administration, de gestion et d'approvisionnement d'un réseau sans fil - Google Patents

Procédé et dispositif d'exploitation, d'administration, de gestion et d'approvisionnement d'un réseau sans fil Download PDF

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Publication number
WO2011068503A1
WO2011068503A1 PCT/US2009/066286 US2009066286W WO2011068503A1 WO 2011068503 A1 WO2011068503 A1 WO 2011068503A1 US 2009066286 W US2009066286 W US 2009066286W WO 2011068503 A1 WO2011068503 A1 WO 2011068503A1
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WO
WIPO (PCT)
Prior art keywords
network
network element
interface
sending
provisioning
Prior art date
Application number
PCT/US2009/066286
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English (en)
Inventor
Hanson On
Original Assignee
Airhop Communications, 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 Airhop Communications, Inc. filed Critical Airhop Communications, Inc.
Priority to PCT/US2009/066286 priority Critical patent/WO2011068503A1/fr
Publication of WO2011068503A1 publication Critical patent/WO2011068503A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present invention relates to methods and apparatuses for operation administration and management of communications networks and is particularly concerned with multi-vendor wireless networks.
  • Every wireless communication service provider has its own management infrastructure for its service networks' Operation, Administration, Maintenance and Provisioning (OAM&P).
  • the management infrastructure is designed to manage many different types of networks such as radio access networks, exchanges, transmission networks, area networks, intelligent nodes and substantial amount of computer hardware/software.
  • the different types of network elements are generally supported with unique vendor specific management systems according to: ⁇ Radio Access Technologies (RAT);
  • Heterogeneous radio network presents a number of operational difficulties for the service providers on enabling effective and efficient network management
  • the architecture of the network management system is very complex and can vary greatly in scope and detail. It does not seem possible to have a single architecture that can meet all the needs from different service providers.
  • Some solutions choose the approach of divide-and-conquer by solving the costly and resource intensive management tasks one at a time. Once a task is identified, a management platform is defined and, likely, supported by new management protocols.
  • the task can be managing a network element at the edge of a service network or within a network segment.
  • a network element can be managed by a Wide Area Network (WAN) Customer Premises Equipment (CPE), e.g. Digital Subscriber Line (DSL) modem.
  • CPE Customer Premises Equipment
  • DSL Digital Subscriber Line
  • Another example is the deployment and management of cellular network base stations (e.g. pico- cell or femtocell).
  • WAN Example The deployment and management of a DSL modem in a WAN involves configuration and dynamic service provisioning, software/firmware image management, status and performance monitoring, and diagnostics.
  • the DSL Forum which was later renamed as Broadband Forum, has defined a transport layer communication protocol between CPE and Auto-Configuration Server (ACS), namely Technical Report 069 (TR-069) CPE WAN Management Protocol.
  • TR-069 provides a centralized management platform that allows the ACS to manage multiple CPEs remotely, periodically and simultaneously.
  • femtocell The deployment and management of a femtocell in a cellular network involves configuration and dynamic service provisioning, Radio Frequency (RF) power measurement, QoS and interference coordination, software/firmware image management, status and performance monitoring, and diagnostics.
  • RF Radio Frequency
  • TR-069 As the basis for the management protocol for femtocells. TR-069 is sufficient for configuration and dynamic service provisioning, software/firmware image management, status and performance monitoring, and diagnostics so long as the femtocells have IP based broadband connectivity (LAN/WAN) for their backhaul traffic.
  • LAN/WAN IP based broadband connectivity
  • TR-069 does not address the communication mechanism for femtocells utilizing none IP based backhaul connectivity.
  • TR-069 does not address the communication mechanism for femtocells utilizing none IP based backhaul connectivity.
  • SON self-organized networking
  • An object of the present invention is to provide a framework for operation administration and management of communications networks as well as self organized networking (SON).
  • SON self organized networking
  • a system for operating, administering, managing and provisioning of a communications network comprising a network element in a first network, for each network element, an element agent residing on the network element, e.g. user agent if SIP is used an interface for coupling the first network to a second network and a registrar in the second network for registering each element agent.
  • a method of operating, administering, managing and provisioning of a communications network comprising the steps of enabling each network element in a first network to communicate with a server in a second network, interfacing each network element in the first network with the second network and sending a message from a selected network element of the first network to the second network for at least one of operating, administering, managing and provisioning the selected network element.
  • a system for SON comprising network elements in a first network and interfaces for coupling the network elements to the first network.
  • a method of SON communications comprising the steps of enabling each network element in a first network to communicate with other network elements in the first network, interfacing other network elements in the first network and sending a message from a selected network work element of the first network to at least one other selected network element in the first network.
  • the network manages applications without the specific knowledge of the radio access technologies, coverage footprints, transmission network topologies, network interfaces, signaling mechanisms and equipment vendors. In addition, it has the flexibility to adapt to the dynamics of the environment and sustain for future expansion.
  • the present invention provides a common platform for network management applications by utilizing existing networks (e.g. WAN, LAN, cellular, Wi-Fi etc.) and standard communication protocols (e.g. SIP, TCP/IP, SMS, GSM, GPRS, EDGE, CDMA, WCDMA, LTE, WiMax etc.).
  • the present invention defines the transportation mechanism for the network management traffic from the application layer down to the physical layer.
  • the present invention allows centralized and distributed management models. In addition, it allows client- server, peer-to-peer, point-to-point and point- to-multi-point transactions.
  • Fig. 1 illustrates an example (Femtocell) to which embodiments of the present invention are applied;
  • Fig. 2 illustrates a network element deployed with a LAN interface in accordance with a first embodiment of the present invention
  • FIG. 3 illustrates a network element deployed with a WAN interface in accordance with a second embodiment of the present invention
  • Fig. 4 illustrates a network element deployed with a fixed wireless interface in accordance with a third embodiment of the present invention
  • Fig. 5 illustrates a network element deployed with a cellular and or cellular SMS network interface in accordance with a fourth embodiment of the present invention
  • Fig. 6 illustrates a session based self-organized and/or self-coordinated network in accordance with a fifth embodiment of the present invention
  • Fig. 7 illustrates a registration and authentication message sequence chart for a LANAVAN interfaced network element of Figs. 2 and 3;
  • Fig. 8 illustrates a registration and authentication message sequence chart for a fixed wireless network or cellular data network interface network element of Fig. 4;
  • Fig. 9 illustrates a registration and authentication message sequence chart for a cellular SMS network interfaced network element of Fig. 5;
  • Fig. 10 illustrates a provisioning message sequence chart for a LANAVAN interfaced network element of Figs. 2 and 3;
  • Fig. 11 illustrates a provisioning message sequence chart for a fixed wireless network or cellular data network interface network element of Fig. 4;
  • Fig. 12 illustrates a provisioning message sequence chart for a cellular SMS network interfaced network element of Fig. 5;
  • Fig. 13 illustrates a discovery message sequence chart for a LANAVAN interfaced network element of Figs. 2 and 3;
  • Fig. 14 illustrates a discovery message sequence chart for a fixed wireless network or cellular data network interface network element of Fig. 4;
  • Fig. 15 illustrates a discovery message sequence chart for a cellular SMS network interfaced network element of Fig. 5; and Fig. 16 illustrates a protocol stack in accordance with an embodiment of the present invention.
  • FIG. 1 there is illustrated a femtocell topology 100 that uses embodiments of the present invention.
  • the deployment of femtocells in cellular networks has introduced many new challenges to network management. The challenges begin with the potential deployment volume to the dynamics of the coverage footprints and to various backhaul connection interfaces.
  • Figure 1 illustrates some possible femtocell network architectures.
  • femtocells 102 include element agents and femtocells 104 include element agent (EA) and a SMS module.
  • EA element agent
  • the embodiments of the present invention include the following components in the network infrastructure as network elements:
  • Proxy server 110 The following components are optional and deployed for additional services, e.g. element redirection, SMS service etc.
  • SMS gateway 114 • SMS gateway 114;
  • the EA 106 is usually part of a managed network element 102 (e.g. femtocell, CPE etc.) and responsible for the management signals' (request and response generated from management applications) transmission and reception. In addition, the EA 106 registers the network element 102 with the registrar 108. The registrar 108 is responsible for handling the registration of the EAs 106 and forwarding the location information to the location server 112. The redirect server assists the proxy server 110 in locating EAs 106 with alternative locations. The proxy server 110 is responsible for request and response routing, authentication and service provider specific features. The location server 112 maintains EA location information (e.g. IP address, phone number, GPS location).
  • EA location information e.g. IP address, phone number, GPS location.
  • the location information has to be sufficient to allow the proxy server 110 to route the request or response to its destination successfully. If the GPS location information is also included in the location database, it can be used for other management purposes, such as forming interference management groups or QoS coordination groups.
  • the SMS gateway 114 is responsible for routing request and response between cellular SMS network and IP network, for example 116 and 118, respectively.
  • the dynamic DNS server is to handle the femtocell or CPE that is utilizing Dynamic Host Configuration Protocol (DHCP).
  • DHCP Dynamic Host Configuration Protocol
  • the network element e.g. femtocell
  • the network element under management includes the following components:
  • the EA request and response transceiver is to provide the network element an alternative network management signaling channel that is not always IP dependent.
  • the transceiver can be LAN, WAN or cellular UE module.
  • the DNS update client and the NAT traversal and application level gateway help resolve IP packet routing to private IP addresses.
  • the embodiments of the present invention establishes a secure and stable transportation mechanism for network management signaling and provide network management applications a single Application Programming Interface (API).
  • API Application Programming Interface
  • a network element enters the registration and discovery mode during its initial auto- configuration, restarting, restarting from different geological location, or forming peer-to-peer groups for self-organized and/or self-coordinated networks.
  • Managing mode is entered after the network element completes its registration with the registrar server 106.
  • Embodiments of the present invention allow the network element to perform registration and discovery through five different network interfaces:
  • the embodiments of the present invention use the session initiation protocol (SIP) or functional equivalent session layer protocol and an Internet protocol (IP) backhaul to establish a common platform for network operation administration management and provisioning (OAM&P). Consequently, all the network operators can implement their own OAM&P applications on generic servers that support session layer protocol (e.g. SIP) and TCP/IP without having to worry about the proprietary operating systems, network topologies, and network interfaces. Given the common platform, instead of adapting equipment vendors' proprietary OAM&P protocol, the network operators are able to define and standardize the OAM&P requirements for the network elements.
  • SIP session initiation protocol
  • IP Internet protocol
  • the network operators are able to request the equipment vendors to meet network operators' OAM&P requirements to establish a unified OAM&P environment based on the common platform layout provided by embodiments of the present invention and allow plug-and-play (e.g. femtocell), peer/client/server discovery, peer/client/server communication.
  • plug-and-play e.g. femtocell
  • the key components to establish the common platform can be grouped into three parts - core components, network edge components and application components.
  • the core components include: ⁇ Element agent 106;
  • the edge components include:
  • NAT-PMP TCP/IP router supporting Network Address Translation and Port Mapping Protocol
  • TCP/IP router supporting NAT-PMP, NAT transversal and application level gateway, Dynamic DNS server and DNS update client are needed to bridge private TCP/IP Local Area Network (LAN) and operator's core network.
  • LAN Local Area Network
  • Cellular UE module and SMS gateway are needed to bridge cellular SMS network and operator's core network.
  • the application components are OAM&P servers. These components should be defined and implemented by network operators. The only requirements are to comply to the session layer protocol in operation (e.g. SIP). The details of these components are implementation specific and therefore beyond the scope of this application.
  • the registration serves multiple purposes, such as notifying network management server of the existence of a network element, establishing routine path(s) for network management signals and allowing peer discovery by other network elements.
  • FIG. 6 there is illustrated a session based self-organized and/or self- coordinated network 600 in accordance with a fifth embodiment of the present invention.
  • the embodiment allows a network element 602 to look up its peers to establish a peer-to-peer connection to form self-organized and/or self coordinated network.
  • the embodiments of the present invention allow the network management applications to send the management signals to network elements that are in managing mode.
  • the embodiments provide a single session layer protocol based API that allows the implementation of the network applications independent of RAT, coverage footprints, transmission network topologies, network interfaces, signaling mechanisms, locations and equipment vendors.
  • the embodiments of the present invention allow the either the server (i.e. network management server) or client (i.e. network element) to initiate the communication provided both sides have registered with the registrar.
  • the embodiments of the present invention allow any network element (e.g. femtocell) compliant with the embodiments of the present invention to initiate communication with any other network element that is also compliant to the embodiments of the present invention provided the peers have registered with the registrar and discoverable.
  • any network element e.g. femtocell
  • FIG. 7 there is illustrated a registration and authentication message sequence chart for a LAN/WAN interfaced network element of Figs. 2 and 3.
  • Fig. 7 illustrates the message sequence and signal traversal between the LAN/WAN interfaced network element (i.e. Femtocell A) 102 and the registrar server 108.
  • Femtocell A 102 initiates the registration by sending the signal (i.e. registration request) to registrar 108 via the router 700.
  • the NAT traversal and application level gateway in the router handles network address translation, if needed, and then routes the signal.
  • the registrar 108 Upon receiving the request, the registrar 108 authenticates the registration request and rejects the request if the authentication fails.
  • Femtocell A 102 Upon receiving the reject response, Femtocell A 102 resends the registration request with proper authentication information via the router 700. Registrar 108 receives the new request, authenticates the request and sends response back to Femtocell A 102. In the meantime, registrar 108 sends Femtocell A 102 location information (e.g. IP address, GPS locations etc.) to the location server 112.
  • location information e.g. IP address, GPS locations etc.
  • Fig. 8 there is illustrated a registration and authentication message sequence chart for a fixed wireless network or cellular data network interface network element of Fig. 4.
  • Fig. 8 illustrates the message sequence and signal traversal between the fixed wireless network or cellular data network interfaced network element (i.e. Femtocell A) 102 and the registrar server 108.
  • FIG. 9 there is illustrated a registration and authentication message sequence chart for a cellular SMS network interfaced network element of Fig. 5.
  • Fig. 9 illustrates the message sequence and signal traversal between the cellular SMS network interfaced network element (i.e. Femtocell A) 502 and the registrar server 108.
  • FIG. 10 there is illustrated a provisioning message sequence chart for a LAN/WAN interfaced network element of Figs. 2 and 3.
  • Fig. 10 illustrates the message sequence and signal traversal between the LAN/WAN interfaced network element 102 (i.e. Femtocell A) and the network management server 120 (i.e. provisioning server).
  • the provisioning server 120 subscribes the Femtocell A's presence with registrar's Presence Server (PS) 108.
  • PS Presence Server
  • FIG. 11 there is illustrated a provisioning message sequence chart for a fixed wireless network or cellular data network interface network element 102 of Fig. 4.
  • Fig. 11 illustrates the message sequence and signal traversal between the fixed wireless or cellular data network interfaced network element 102 and the network management server 120 (i.e. provisioning server).
  • the network management server 120 i.e. provisioning server
  • FIG. 12 there is illustrated a provisioning message sequence chart for a cellular SMS network interfaced network element 502 of Fig. 5.
  • Fig.12 illustrates the message sequence and signal traversal between the cellular SMS network interfaced network element 502 and the network management server 120 (i.e. provisioning server).
  • FIG. 13 there is illustrated a discovery message sequence chart for a LAN/WAN interfaced network elements 102a and 102b of Figs. 2 and 3.
  • Fig. 13 illustrates the peer discovery message sequence and signal traversal among the two femtocells 102a and 102b and the Presence Server (PS) 108.
  • PS Presence Server
  • Femtocell A (102a) initiates the registration by sending registration request to registrar 108 via the router 700a.
  • the NAT traversal and application level gateway in the router handles network address translation, if needed, and then routes the signal.
  • Femtocell B (102b) initiates the registration by sending registration request to registrar 108 via the router 700b.
  • the NAT traversal and application level gateway in the router handles network address translation, if needed, and then routes the signals.
  • the registrar server 108 handles the requests and updates Femtocell A and B's location with location server 112 and PS 114.
  • the Presence element Agent (PEA) within Femtocell A subscribes to Femtocell B's presence by sending subscribe request to Presence Agent (PA). Since Femtocell B has already registered and is present, the PA sends Femtocell B presence notification to PEA within Femtocell A. Once Femtocell B is successfully discovered, Femtocell A can send invitation to Femtocell B to establish peer-to-peer session for interference/QoS coordination etc.
  • PDA Presence element Agent
  • Fig. 14 there is illustrated a discovery message sequence chart for a fixed wireless network or cellular data network interface network elements 102a and 102b of Fig. 4.
  • Fig. 14 illustrates the peer discovery sequence and signal traversal among the two femtocells and PS.
  • Femtocell B illustrated in Figure 14 is a LANAVAN interfaced network element, it can be any kind of network interfaced network element, such as fixed wireless, cellular data network or cellular SMS network.
  • Fig. 15 there is illustrated a discovery message sequence chart for a cellular SMS network interfaced network elements 502a and 502b of Fig. 5.
  • Fig. 15 illustrates the peer discovery sequence and signal traversal among the two femtocells and PS.
  • Femtocell B illustrated in Figure 15 is a LANAVAN interfaced network element, it can be any kind of network interfaced network element, such as fixed wireless, cellular data network or cellular SMS network.
  • Fig. 16 there is illustrated a protocol stack in accordance with an embodiment of the present invention.
  • the "Agent Apps" includes the EA and adaptation software.
  • the adaptation software has two main components, protocol stack adaptation and application adaptation.
  • the protocol stack adaptation handles the interface between the EA and the protocol stack(s), where the protocol stack(s) can be TCP/IP stack or wireless cellular protocol stack.
  • the application adaptation handles the interface between the applications operating on the network work element, where the applications can be for example, a provisioning application, a software/firmware image management application, a status and performance monitoring application, a diagnostics application, an interference coordination/management application, a QoS coordination/management application.
  • the EA utilizes the protocol stack to transmit and receive packets via protocol stack adaptation software.
  • the applications utilize the EA to communicate with the peers or servers via application adaptation software.

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

Abstract

Système et procédé d'exploitation, d'administration, de gestion et d'approvisionnement d'un réseau de communication. Un élément de réseau passe en mode enregistrement et découverte pendant son auto-configuration initiale, son redémarrage, son redémarrage à partir d'un emplacement géologique différent, ou lorsqu'il forme des groupes pair-à-pair pour des réseaux auto-organisés ou auto-coordonnés. Le passage en mode de gestion s'effectue une fois que l'élément de réseau a achevé son enregistrement auprès du serveur registraire.
PCT/US2009/066286 2009-12-01 2009-12-01 Procédé et dispositif d'exploitation, d'administration, de gestion et d'approvisionnement d'un réseau sans fil WO2011068503A1 (fr)

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PCT/US2009/066286 WO2011068503A1 (fr) 2009-12-01 2009-12-01 Procédé et dispositif d'exploitation, d'administration, de gestion et d'approvisionnement d'un réseau sans fil

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983270A (en) * 1997-03-11 1999-11-09 Sequel Technology Corporation Method and apparatus for managing internetwork and intranetwork activity
EP1983771A1 (fr) * 2007-04-17 2008-10-22 Alcatel Lucent Procédé pour la mise en interface d'équipement de cellule Femto avec réseau central mobile
US20080293433A1 (en) * 2007-05-22 2008-11-27 Mavenir Systems, Inc. Discovering cellular network elements
US7535871B1 (en) * 1999-05-27 2009-05-19 Cisco Technology, Inc. Mobile IP intra-agent mobility

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983270A (en) * 1997-03-11 1999-11-09 Sequel Technology Corporation Method and apparatus for managing internetwork and intranetwork activity
US7535871B1 (en) * 1999-05-27 2009-05-19 Cisco Technology, Inc. Mobile IP intra-agent mobility
EP1983771A1 (fr) * 2007-04-17 2008-10-22 Alcatel Lucent Procédé pour la mise en interface d'équipement de cellule Femto avec réseau central mobile
US20080293433A1 (en) * 2007-05-22 2008-11-27 Mavenir Systems, Inc. Discovering cellular network elements

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