WO2006124920A2 - Universal convergence border gateway - Google Patents
Universal convergence border gateway Download PDFInfo
- Publication number
- WO2006124920A2 WO2006124920A2 PCT/US2006/018955 US2006018955W WO2006124920A2 WO 2006124920 A2 WO2006124920 A2 WO 2006124920A2 US 2006018955 W US2006018955 W US 2006018955W WO 2006124920 A2 WO2006124920 A2 WO 2006124920A2
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- WO
- WIPO (PCT)
- Prior art keywords
- services
- data flows
- traffic
- security association
- security
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0272—Virtual private networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/164—Implementing security features at a particular protocol layer at the network layer
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
Definitions
- the present inventions relate generally to wireless services and, more particularly, to methods and systems for providing converged delivery of wireless services.
- the present application discloses a services gateway, which links client access by any technology to multiple service nodes, even if the client access technology is not directly compatible with the service node.
- the universal convergence border gateway utilizes the IP layer as a harmonizing layer to decouple standard services from the constraints of their normally-associated access technologies. This is particularly advantageous with multifunction client devices because the best available wireless access technology can be used independently of the type of service being accessed.
- the UCBG multiplexes the traffic from various services and converges the data flows into a single primary security association to send it to the user client.
- the user equipment can connect with multiple different types of data flows.
- the gateway also demultiplexes the converged traffic that it receives from the user client in order to route the traffic to the appropriate services.
- a single encryption scheme is used to secure the multiple data flows having different characteristics for multiple different services. Therefore, independent multiple transfer channels with different encryption schemes are not required to be maintained by the user client.
- the UCBG is able to maintain the different traffic characteristics of the various data flows while keeping the single encryption scheme.
- the UCBG also enables mobile operators and service providers to offer identical services and integrated billing/OSS over any licensed or unlicensed access technologies by acting as an anchor point for multiple accesses and services.
- a corporate service may require the username/password to grant the access to the client.
- the proposed UCBG provides such a mechanism by utilizing the Configuration payload of IKE message to deliver the username/password information in the IKE SA. Therefore, the information is protected, and the client can access the corporate domain through a secure VPN.
- FIG. 1 is an illustration of a prior art network architecture.
- FIG.2 is a message flow/signaling chart for a prior art network architecture.
- FIG. 3 shows a sample embodiment of a network architecture incorporating a universal convergence border gateway.
- FIG. 4 is a message flow/signaling chart of a sample embodiment of a network architecture incorporating a universal convergence border gateway.
- FIG. 5 shows a sample embodiment of a universal convergence border gateway used as an access-independent services gateway.
- FIG. 6 shows another sample embodiment of a universal convergence border gateway and dual-mode user equipment.
- FIG. 1 is an illustration of a prior art network architecture.
- user equipment 101 uses access network 103 to access the services offered by core network 157.
- a separate secure connection such as 105, 121, 129, or 145, must be created.
- an IKE/IPsec SA 105 is established between user equipment 101 and TTG 107.
- GTP tunnel 109 is then established using a subset of the Gn reference point, Gn'.
- Link 117 between IMS services 119 and GGSN 111 (via a Gi or Go interface) enables user equipment 101 to access IMS services 119.
- User equipment 101 can also access packet services 115 through link 113 via a Gi interface.
- Another secure connection 121 is established between user equipment 101 and security gateway 123. Once secure connection 121 is established, user equipment 101 is now able to access VoIP services 127 via Softswitch 125.
- Another secure connection for example IKE/IPsec SA 129, is established between user equipment 101 and PCF 131.
- An R-P tunnel 133 is then created between PCF 131 and PDSN 135 (via an R-P interface).
- Link 141 between IMS services 143 and PDSN 135 (via interface Pi) enables user equipment 101 to access IMS services 143.
- User equipment 101 can also access packet services 139 through link 137 via a Pi interface.
- XJMA network controller 149 connects user equipment 101 to PSTN 155 through link 151 between UMA 149 and MSC/GMSC 153 (via interface A). Accordingly, for each service node accessed by user equipment 101, a separate secure connection must be maintained by user equipment 101. As a result, the user can only access the service through the coupled access technology.
- FIG.2 is a message flow/signaling chart of a prior art network architecture.
- the UE establishes an IKE SA with the TTG for GPRS traffic (message flow 201).
- An IPSec tunnel is then setup between the UE and the TTG, and a primary GTP tunnel is established between the TTG and the GGSN (message flow 203).
- QoSl i.e. the requested QoS upon IPsec tunnel and primary GTP tunnel establishment
- it is carried inside this IPSec tunnel, and the TTG sends the traffic to the GGSN (message flow 205).
- the TTG can differentiate the traffic toward the GGSN using GPRS mechanism.
- the traffic may then be carried in a separate GTP tunnel between the TTG and the GGSN.
- another service through another service node e.g. UMA through UNC, is requested, another secure tunnel should be established toward this node.
- a new IKE SA is established between the UE and the SGW (security gateway) (message flow 209).
- the second IPsec tunnel is then setup using this new IKE SA between the UE and the SGW (message flow 211).
- the UMA traffic is carried inside this second IPSec tunnel, and SGW delivers the traffic accordingly to the UNC (message flow 213). There is no relationship between these two services.
- FIG. 3 shows a sample embodiment of a network architecture incorporating a universal convergence border gateway.
- universal convergence border gateway (UCBG) 301 is the core component of the services convergence.
- UCBG 301 establishes a secure connection 303 to user equipment 101.
- Secure connection 303 ensures the integrity and security of data transfer over wireless and distrusted access networks, such as WLAN 103 (especially in roaming cases).
- a secure connection is established only after successful authentication and authorization procedures based on the client's requested service and current subscription have been completed.
- UCBG 301 may communicate with an external server for signaling, control, and accounting purposes.
- the architecture shown in FIG. 3 does not require the user equipment to support a separate secure connection for each service accessed since the UCBG establishes the primary security association with the user client and uses this SA for all the traffic for multiple different services.
- the user equipment no longer needs to maintain secure connections 105, 121, 129, and 145.
- the UCBG replaces Security gateways 107 and 147, TTG 107, and PCF 131.
- the services are no longer bound to their normally-associated access technologies and become universally available through different access networks.
- FIG. 3 also shows a few examples of applications that can be converged using a universal convergence border gateway:
- IMS is an IP-based infrastructure for secure delivery of multimedia services over cellular technologies.
- IMS services use the PS domain as the transport layer, and hence they can be provided from the GGSN or PDSN platform.
- the link between IMS and the GGSN (via Gi or Go interface) or the PDSN (via Pi interface) enables exchange of QoS and policy parameters, as well as charging correlation identities.
- UCBG 301 enables IMS services 119 and 143 over any access technology (deployed in
- TTG/tunnel-switching mode or PCF by reusing GGSN 111 or PDSN 135 platforms and all associated configurations.
- UCBG 301 can terminate a secure connection from the user equipment over the WLAN access technology. Once a secure, authenticated session with the user equipment is established, the operator's Softswitch 125 with VoIP infrastructure 127 can deliver SIP-based VoIP calls to the user equipment over alternative access technologies. This enables the operator to extend their current 2G/3G footprint to deliver WLAN access to reduce the overall cost of deployment.
- UMA Application The UMA solution emulates a 2G BSC function (GANC/UNC 149) by a connection 151 from one side to existing 2G MSC 153 (via A interface) and a connection from another side to the user equipment via VPN/IP.
- GANC/UNC 149 The UMA solution emulates a 2G BSC function (GANC/UNC 149) by a connection 151 from one side to existing 2G MSC 153 (via A interface) and a connection from another side to the user equipment via VPN/IP.
- UCBG 301 can provide a secure, authenticated, and authorized bearer for UMA services.
- UCBG 301 enables mobile operators and service providers to offer identical services and integrated billing/OSS over any licensed or unlicensed access technologies by decoupling the services from their normally- associated access technologies.
- IKE SA primary security association
- several child or IPSec SAs are created to carry service traffic with different characteristics, such as QoS or "access characteristics", e.g. corporate intranet.
- these IPSec SAs are controlled by the one primary SA that was used to create the IPSec SAs. This makes it possible to differentiate and isolate traffics with different characteristics and QoS requirements. Accordingly, traffic characteristics are not lost while keeping the single encryption scheme.
- the 1KB is used as the primary SA between the UCBG and user 'client, and the IKE's Configuration payload is used to indicate the different services and/or service nodes when creating an IPSec SA toward UCBG 301.
- UCBG 301 stores these characteristics with the IPSec SPI, and when the IPSec traffic with specific SPI flows in, it determines which service and/or service node should be used for this traffic. Therefore, there is no need for complex logic to distinguish the traffic at UCBG 301, and UCBG 301 can simply forward the traffic to the appropriate service node using the IPSec SPI value.
- corporate services 307 may require the username/password before granting access to the client.
- the presently disclosed UCBG provides a security mechanism utilizing the Configuration payload of the IKE message.
- the username/password information is delivered in the IKE SA, and the UCBG forwards this information to GGSN according to standard GPRS process. Accordingly, the information is protected, and the client can access the corporate domain through a secure VPN.
- Hie username/password is sensitive information
- this information is provided only after the user and the UCBG are mutually authenticated and the secure IKE SA is established.
- the user can access corporate services 307 through a secure IPSec tunnel,
- the decision for using a single or multiple tunnels towards the end-user is based on the dynamic combination of requested services, end-user capabilities, and UCBG conditions (e.g. load);
- FlG. 4 is a message flow/signaling chart of a sample embodiment of a network architecture incorporating a universal convergence border gateway.
- an IKE SA is established between the UE and the UCBG (message flow 401). This SA is used for all the services regardless of the services and/or service characteristics, e.g. QoS. All of the control messages are encrypted, and their integrity is protected.
- a first IPSec SA is established for data transfer. In this example, it is assumed that the service requested by the user needs the GGSN as a service node.
- a GTP tunnel is then established between the UCBG and the GGSN (message flow 403). For the traffic for this service, the UE would send and receive the data inside IPSec tunnel 1, and the UCBG forwards the message accordingly to the GGSN (message flow 405). If another service with different characteristics, e.g.
- a second IPSec SA may be established.
- the new IPSec SA key can be used or not according to the policy.
- Another GTP tunnel is established to carry the traffic with different Quos, e.g. QoS2 (message flow 407).
- the UE establishes another IPSec SA (message flow 409).
- the UE sends this traffic into the appropriate IPSec tunnel.
- the UCBG identifies the traffic by the SPI and directs the traffic accordingly to the UNC (message flow 411).
- the UE For the GPRS traffic with different QoS, e.g. QoS2, the UE sends this traffic into the appropriate IPSec tunnel, and the UCBG directs the traffic accordingly to the GGSN (message flow 413). If there is a request to establish the VPN for enterprise, the UE may establish another IPSec tunnel, providing the required username/password information. The UCBG forwards this information and request to the GGSN, creating a GTP tunnel (message flow 415). The enterprise VPN traffic is carried inside the appropriate IPSec tunnel and GTP tunnel to the destination in enterprise intranet (message flow 417).
- QoS QoS2
- IP packet switched, PS
- the disclosed converged gateway platform enables seamless offering of wireless services over any access technologies with secure access to the operator's core service delivery platforms.
- FIG- 5 shows a sample embodiment of a universal convergence border gateway used as an access-independent services gateway.
- user equipment 101 can access all of the services through any access technology, such as Wi-Fi 5 WiMAX, GPRS/EDGE, and any generic IP.
- UCBG 301 operates at the IP layer. Therefore, UCBG 301 functions independently of the access network technology. UCBG 301 can be deployed easily at the core network edge to provide secure common service delivery regardless of access technology used by user equipment 101.
- WiMAX WiMAX
- WiMAX 802.16e standardization.
- 3GPP can quickly embrace WiMAX, which can be used to further extend the reach of 3G and IMS.
- IP Layer as a Harmonizing Layer UCBG 301 utilizes the IP layer as a harmonizing layer to decouple standard services from the constraints of their normally-associated access technologies. This is particularly advantageous with multifunction client devices because the best available wireless access technology can be used independently of the type of service being accessed.
- FIG. 6 shows another sample embodiment of a universal convergence border gateway and dual-mode user equipment.
- user equipment 101 is preferably a dual-mode (e.g. WLAN + GPRS) user equipment.
- the services can be accessed either directly through a GPRS connection 601, or via a WLAN connection 603.
- UCBG 301 acts as a GPRS node and enforces user traffic routing directly through GPRS connection 601.
- UCBG establishes the secure tunnel over WLAN and enforces the traffic through the WLAN connection.
- a particular service e.g. IMS 119
- UCBG 301 establishes a GTP tunnel 105> towards GGSN 111 and switches the user traffic between WLAN connection 603 and GPRS connection 601.
- a method of communicating comprising the actions of: decoupling standard services from their normally-associated access technologies using the IP layer; and allowing a user equipment to access standard services independently of the access technology normally associated with said services.
- a communication system comprising: a server which utilizes the IP layer to decouple standard services from their normally-associated access technologies; wherein a user equipment is able to access standard services independently of the access technology normally associated with said services.
- a method for a mobile device to simultaneously communicate with different service nodes comprising the actions of: using a single primary security association to simultaneously participate in multiple data flows having different traffic characteristics on multiple different types of services; wherein said mobile electronic device uses said single primary security association to manage said multiple different types of services.
- a method of communicating comprising the actions of: mutiplexing multiple data flows, having different characteristics for multiple different types of services, using a single encryption scheme; and communicating said data flows between a mobile electronic device and a convergence gateway using respective secondary data paths under the management of a single primary control path; wherein said mobile electronic device can simultaneously access services from multiple different types of services, under the management of said single primary control path.
- a communications system comprising: a mobile electronic device which can simultaneously participate in multiple data flows having different traffic characteristics for multiple different types of services; and multiplexing software which generates said multiple data flows using the configuration of a single primary security association to distinguish said multiple data flows; and allows said mobile electronic device to interface with a convergence gateway through said single primary security association; wherein said mobile electronic device can simultaneously access said multiple different types of services under the control of said single primary security association.
- a system for communication with a mobile client comprising: a single primary security association between a server and a mobile client; wherein said server uses the payload of said single primary security association to multiplex the traffic for two or more different types of services into two or more data flows; and wherein said server simultaneously delivers services from said two or more different types of services nodes to said mobile client, under the control of said single primary security association.
- a method of delivering network services to a client comprising the actions of: in a mobile client, running multiple applications which interface to different respective types of data flows, and multiplexing and demultiplexing said data flows in multiple secondary security associations under the control of a single primary security association; and in a gateway server, multiplexing and demultiplexing data flows of multiple different types in multiple secondary security associations, and routing said data flows to the appropriate service nodes; wherein said server simultaneously delivers services from said services nodes to said client independently of the access technology used by said client to access said services.
- a method of delivering network services comprising the actions of: managing a first data flow between a server and a user equipment to cany traffic of a first characteristic associated with a first service node; if there is traffic of a second characteristic associated with said first service node, managing a second data flow between said server and said user equipment to carry traffic of said second characteristic; and if there is traffic associated with a second service node, managing a third data flow between said server and said user equipment to carry traffic associated with said second service node; wherein the respective services of said first and second service nodes are delivered to said user equipment through the respective data flows and under the control of a single security association between said user equipment and said server; and wherein additional data flows, between said server and said user equipment, are created as needed using said single security association.
- a communication system comprising: a security association between a server and a user equipment; a first data flow between said server and said user equipment, said first data flow is generated from the payload configuration of said security association and carries traffic of a first characteristic associated with a first service node; if there is traffic of a second characteristic associated witibi said first service node, a second data flow between said server and said user equipment, said second data flow is generated from the payload configuration of said security association and carries traffic of the second characteristic; and if there is traffic associated with a second service node, a third data flow between said server and said user equipment, said third data flow is generated from the payload configuration of said security association and carries traffic associated with said second service node; wherein an end user is able to simultaneously access the services of said first and second service nodes under the control of said security association; and wherein additional data flows, between said server and said user equipment, are created as needed using said security association.
- IPSec is used to secure and differentiate the traffic
- any method of securing and differentiating the traffic can be used.
- IKE is used with IPSec to make up the protocol suite
- other encryption standards are, of course, possible.
- DES, 3DES, D-H, MD5, SHA-I, RSA signatures, AES, and CAs may also be used.
- IKE is used for key exchange and management for IPsec
- other key exchange and management mechanisms are, of course, possible.
- the UCBG of the present application may be implemented in any hardware including chassis-based platforms.
- the blades in the chassis are divided as clusters to function as either control blades or the data blades.
- the chassis would provide the high availability so that the active user sessions and the statistics are not lost in case of a blade failure. There will be no single point of failure in UCBG.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002620830A CA2620830A1 (en) | 2005-05-18 | 2006-05-17 | Universal convergence border gateway |
AU2006247291A AU2006247291A1 (en) | 2005-05-18 | 2006-05-17 | Universal convergence border gateway |
EP06770446A EP1889168A2 (en) | 2005-05-18 | 2006-05-17 | Universal convergence border gateway |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68222705P | 2005-05-18 | 2005-05-18 | |
US60/682,227 | 2005-05-18 | ||
US11/233,936 | 2005-09-23 | ||
US11/233,936 US20060265504A1 (en) | 2005-05-18 | 2005-09-23 | Universal convergence border gateway |
Publications (2)
Publication Number | Publication Date |
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WO2006124920A2 true WO2006124920A2 (en) | 2006-11-23 |
WO2006124920A3 WO2006124920A3 (en) | 2009-04-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2006/018955 WO2006124920A2 (en) | 2005-05-18 | 2006-05-17 | Universal convergence border gateway |
Country Status (5)
Country | Link |
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EP (1) | EP1889168A2 (en) |
KR (1) | KR20080036954A (en) |
AU (1) | AU2006247291A1 (en) |
CA (1) | CA2620830A1 (en) |
WO (1) | WO2006124920A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008090457A2 (en) * | 2007-01-26 | 2008-07-31 | 24Access Solutions B.V. | System and method for providing a secure connection between a computer and a mobile device |
CN116244359A (en) * | 2022-11-23 | 2023-06-09 | 北京瑞风协同科技股份有限公司 | Test data gathering device, method and equipment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20010032232A1 (en) * | 2000-01-31 | 2001-10-18 | Zombek James M. | Messaging method and apparatus including a protocol stack that corresponds substantially to an open system interconnection (OSI) model and incorporates a simple network transport layer |
-
2006
- 2006-05-17 CA CA002620830A patent/CA2620830A1/en not_active Abandoned
- 2006-05-17 EP EP06770446A patent/EP1889168A2/en not_active Withdrawn
- 2006-05-17 KR KR1020077029113A patent/KR20080036954A/en not_active Application Discontinuation
- 2006-05-17 AU AU2006247291A patent/AU2006247291A1/en not_active Abandoned
- 2006-05-17 WO PCT/US2006/018955 patent/WO2006124920A2/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010032232A1 (en) * | 2000-01-31 | 2001-10-18 | Zombek James M. | Messaging method and apparatus including a protocol stack that corresponds substantially to an open system interconnection (OSI) model and incorporates a simple network transport layer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008090457A2 (en) * | 2007-01-26 | 2008-07-31 | 24Access Solutions B.V. | System and method for providing a secure connection between a computer and a mobile device |
WO2008090457A3 (en) * | 2007-01-26 | 2008-10-23 | 24Access Solutions B V | System and method for providing a secure connection between a computer and a mobile device |
CN116244359A (en) * | 2022-11-23 | 2023-06-09 | 北京瑞风协同科技股份有限公司 | Test data gathering device, method and equipment |
CN116244359B (en) * | 2022-11-23 | 2023-09-29 | 北京瑞风协同科技股份有限公司 | Test data gathering device, method and equipment |
Also Published As
Publication number | Publication date |
---|---|
AU2006247291A1 (en) | 2006-11-23 |
EP1889168A2 (en) | 2008-02-20 |
CA2620830A1 (en) | 2006-11-23 |
KR20080036954A (en) | 2008-04-29 |
WO2006124920A3 (en) | 2009-04-30 |
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