EP3053321A1 - Technique de restauration d'un service dans un réseau - Google Patents
Technique de restauration d'un service dans un réseauInfo
- Publication number
- EP3053321A1 EP3053321A1 EP14796195.7A EP14796195A EP3053321A1 EP 3053321 A1 EP3053321 A1 EP 3053321A1 EP 14796195 A EP14796195 A EP 14796195A EP 3053321 A1 EP3053321 A1 EP 3053321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- server
- user
- interrogation
- service request
- registration server
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Definitions
- the invention is in the field of Internet Protocol (IP) type communication networks, and more particularly relates to a technique for restoring a service for a user in an IP Multimedia System (IMS) network.
- IP Internet Protocol
- IMS IP Multimedia System
- An IMS network architecture as defined by the 3rd Generation Partnership Project (3GPP) standardization group enables the establishment and control of multimedia sessions between two user equipments as well as the reservation of resources for the multimedia streams at the network level. transport. With this architecture, network operators can conveniently control the quality of service offered.
- the IMS architecture currently offers telephony, video telephony, Presence and Instant Messaging services and also manages the interaction of these services. It typically implements Session Initiation Protocol (SIP), as defined by the Internet Engineering Task Force (IETF) in RFC 3261 as a session management protocol, which enables the establishment, modification, or and terminating multimedia sessions in a network using the IP protocol.
- SIP Session Initiation Protocol
- IETF Internet Engineering Task Force
- Such an IMS network architecture comprises in particular:
- Each subscriber server contains the "profile" of a number of user devices of the network, this profile including their registration status, authentication and location data, and subscribed services;
- S-CSCF Server-Call Server Control Function
- Interrogating-Call Server Control Function I-CSCF
- I-CSCF Interrogating-Call Server Control Function
- proxy servers also called “proxy” servers
- P-CSCF Proxy-Call Server Control Function
- IMS Restoration Procedures a IMS network when a nominal registration server is unreachable (eg, network failure, or failure of the registration server itself).
- two restoration procedures are described, the first involved when registering a user equipment on the IMS network (TS 23.380, ⁇ 4.2.2), and the second when the end of a session with a device. user (TS 23.380, ⁇ 4.3.3).
- Both of these procedures provide for sending an ability request message by an I-CSCF interrogation server to an HSS subscriber server, so that the I-CSCF interrogation server can select a registration server S- Replacement CSCF.
- Capabilities are defined in Chapter 6.7 of 3GPP TS 29.228 Technical Specification. This ensures service continuity in the transparent IMS network for the user.
- a disadvantage of the service restoration procedures as specified in the TS 23.380 specification document is that when processing a service request for a user, a transfer of the service request is systematically made to the nominal registration server. .
- the nominal registration server remains unreachable waiting for a response from the latter and retransmissions of the service request to the nominal registration server are particularly consumer in terms of network resources, then network capacity is reduced, in particular due to the unavailability of the nominal registration server.
- One of the aims of the invention is to remedy the shortcomings / disadvantages of the state of the art and / or to make improvements thereto.
- the invention relates to a method of processing in a communication network a service request relating to a user, said method comprising the following steps implemented by an interrogation server during an optimization phase: a / reception from a user equipment of said service request relating to a user;
- dl determining a replacement registration server from the received capabilities, and transferring the service request to the determined alternative registration server; in which, during a detection phase, during which the recording server is deemed reachable, said nominal recording server being associated with said user, and said method further comprises, prior to the step of receiving capacitors, the following steps : bl / receiving an identifier of a nominal registration server in response to the interrogation of step b1;
- the detection phase implements the steps provided for in the restoration procedures described in TS 23.380.
- the processing method thus provides for an optimization phase, triggered when the nominal registration server is deemed unreachable. Thanks to the processing method, the service request relating to the user is only transferred once to a recording server during the optimization phase. It is thus possible to avoid waiting times and retransmissions following the transfer of the service request to an unreachable registration server.
- the service restoration procedures as defined in the TS 23.380 technical specification, are only implemented following a finding of unavailability of the nominal registration server after a first transfer of the service request to that server. nominal registration.
- a single transfer of the service request during the optimization phase saves network resources and optimizes the processing of service requests relating to a user in the event of unavailability of a nominal registration server. Traffic within the network is also reduced. The continuity of service is thus reinforced, which contributes to improving the quality of service perceived by the user.
- the processing method further comprises a step of determining that the nominal registration server is deemed unreachable, implemented by the interrogation server.
- the step of determining that the nominal recording server is deemed unreachable can trigger the optimization phase.
- Service Restore management is local to each network polling server. It is possible to implement service restoration strategies specific to each interrogation server of the network, depending for example on the number of transfer failures triggering the optimization phase.
- the processing method comprises a step of determining that the nominal registration server is deemed unreachable, implemented by the subscriber server.
- the initiation of the optimization phase by the subscriber server allows centralized management of the service restoration.
- the subscriber server may maintain information relating to the unavailability of a registration server for each registration server of the network.
- the subscriber server When the subscriber server is polled by a polling server to obtain a identifying a nominal registration server associated with a user, the subscriber server directly returns capabilities in response to this query when it has identified the registration server as unreachable or unavailable.
- a second interrogation of the subscriber server by the query server to obtain capabilities and a possible new failure to transfer the service request are avoided, which has the effect of reducing network traffic.
- the number of polls of the subscriber server is independent of the number of interrogation servers of the network.
- the unreachable state of the nominal registration server is determined from at least one counter associated with said nominal registration server, updated during the detection phase during a transfer failure to the nominal recording server.
- a counter makes it possible to have direct information as to the number of transfer failures for a given registration server. Associated with an unreachable state of a recording server, it makes it possible to define different strategies for triggering the optimization phase. This last phase is for example triggered according to the number of failed transfer of the service request. An operator may, for example, decide to define a low transfer failure number before triggering the optimization phase for interrogation servers requiring the best continuity of service, and raised for environments that tolerate service interruptions. It is thus possible for the operator to offer different levels of quality of service to a user.
- the management for this trigger value counter of the optimization phase is simple. Indeed, there is only one counter to be updated per known registration server of an interrogation server.
- the unreachable state of the nominal registration server is determined from a plurality of counters respectively associated with a plurality of types of service request.
- Specialized counters by service request type allow fine management of service restoration strategies in an IMS network.
- An operator may, for example, choose to privilege a continuity of service for requests relating to the registration (eg UAR requests, User Authorization Request) of a user equipment on the IMS network, and to adopt a different service restoration policy for example, Location Information Request (LIR) requests.
- LIR Location Information Request
- the invention relates to an interrogation server, arranged to process a service request relating to a user, comprising: a first send / receive module, arranged to receive from a user equipment said service request relating to a user and transfer it to a recording server;
- a second sending / receiving module arranged to interrogate a subscriber server, in order to obtain in return an identifier of a registration server associated with the user or of capacities that a registration server must to be able to provide authorized services for a user;
- a selection module arranged to determine a replacement recording server from received capacities
- control module arranged to control an interrogation of a subscriber server, so that during a first phase, to obtain an identifier of a nominal registration server associated with the user, to command a transfer to the subscriber server; nominal registration server and following a failed transfer of the service request to said nominal registration server, obtain capabilities; and also arranged for, in a second phase, control when the nominal registration server is deemed unreachable, a single transfer of the service request for a user to a recording server.
- the interrogation server further comprises a calculation module, arranged to update at least one counter relating to an unreachable state of a recording server.
- the invention relates to a subscriber server arranged to process a service request relating to a user comprising:
- a send / receive module arranged to answer a query from an interrogation server, in particular to provide it with an identifier of a nominal registration server associated with the user or to provide the same with the capabilities that a registration server must have in order to provide the authorized services for a user;
- a control module arranged to control during an optimization phase where the nominal registration server is deemed unreachable, providing capabilities directly in response to an identifier request of said nominal registration server.
- the subscriber server further comprises a calculation module, arranged to update at least one counter relating to an unreachable state of a registration server.
- the invention proposes a system for processing a service request in a communication network, said system comprising:
- an interrogation server according to the second aspect; a calculation module, arranged to update at least one counter relating to an unreachable state of a recording server;
- a subscriber server comprising:
- a sending / receiving module arranged to answer a query from an interrogation server, in particular to provide it with an identifier of a registration server associated with the user or to provide the latter with
- control module of the subscriber server is furthermore arranged to control during an optimization phase where the nominal registration server is deemed unreachable, a supply of capabilities directly in response to a request for subscribers. identifier of said nominal registration server.
- the invention relates to a program for an interrogation server, comprising program code instructions for controlling the execution of the steps of the method described above, when said program is executed by said server and support of recordable by an interrogation server on which a program for an interrogation server is stored.
- the invention also relates to a program for a subscriber server, comprising program code instructions intended to control the execution of the steps of the method described above, when said program is executed by said server and a support recordable by a subscriber server on which a program is registered a subscriber server.
- FIG. 1 represents a system for processing a service request relating to a user in a communication network
- FIG. 2 represents an interrogation server implementing a method of processing a service request according to a particular embodiment
- FIG. 3 represents a subscriber server according to a particular embodiment
- FIGS. 4a and 4b represent steps of a method of processing a service request relating to a user according to two particular embodiments.
- FIG. 1 represents a system 2 for processing a service request in a communication network 1.
- the multimedia services offered by this network 1 may comprise services of telephony, video telephony, content sharing, Presence, instant messaging, or television.
- the system 2 makes it possible to transfer a request for registration of a user equipment ⁇ User Equipment, or UE in English) on the network 1 to a server registration, and to benefit from the services offered by this network.
- the user equipment 10 is for example a fixed or mobile terminal, or a home or enterprise gateway.
- the system 2 comprises an interrogation server 20, a subscriber server 30 and a calculation module (not shown) for determining whether a recording server is unreachable.
- the calculation module is for example according to a first embodiment described later integrated in the interrogation server 20 or according to a second embodiment also described later integrated in the subscriber server 30.
- the subscriber 30 and interrogation servers 20 also communicate together.
- the interrogation server 20 also communicates with recording servers 40-41.
- Figure 1 is shown in a simplified manner to facilitate understanding. However, there is no limitation as to the number of subscriber servers, recording servers, interrogation servers belonging to the communication network. Similarly there is no limitation as to the number of user equipment.
- the interrogation server 20 is an I-CSCF server
- the recording servers 40-41 are S-CSCF servers
- the subscriber server. 30 is an HSS server, some of these different servers can be gathered within the same entity, if any.
- the SIP signaling protocol is used for exchanges with the user equipment 10, as well as between the interrogation and registration 40-41 servers.
- the exchanges between the subscriber server 30 on the one hand and the interrogation and registration servers 40-41 on the other hand are supported by the Diameter protocol.
- FIGS. 4a and 4b show a method of processing a service request relating to a user. They are based on two phases: a first PI detection phase and a second P2 optimization phase.
- PI detection phase in the case of a failed transfer of the service request for a user to a nominal registration server 40, the service restoration procedures as defined in the TS 23.380 technical specification are implemented. Then on detection that the recording server is unreachable the second P2 optimization phase is triggered.
- FIG. 4a describes the steps of the method of processing a service request relating to a user according to a first embodiment.
- the detection that the nominal registration server 40 is unreachable is implemented in the IMS communication network 1 by the interrogation server 20.
- the interrogation server 20 receives a service request M1 relating to a user from a user equipment 10.
- the service request M1 is for example a SIP REGISTER request to register with a server recording.
- the interrogation server 20 interrogates in a step E2 the subscriber server 30 in order to obtain an identifier of the nominal registration server 40 having the characteristics required to reach the level of service subscribed by the user.
- This interrogation is more particularly carried out by sending a M2 (User-Authorization-Request) UAR message according to the Diameter protocol as defined in RFC 4740 and in accordance with specifications 3GPP TS 24.229 and TS 29.228.
- the interrogation server 20 receives from the subscriber server 30 in response to the request UAR M2, a UAA message (for User-Authorization-Answer) M3 indicating an identifier Id s .
- CSCF1 of the nominal registration server 40 with which the user is registered.
- This identifier is for example a uniform resource identifier (Uniform Resource Identifier or URI) as defined by RFC 3986.
- a step E4 the interrogation server 20 checks with a CPT counter whether a threshold SI conditioning the transition to a second phase P2, called “optimization phase” has been reached.
- the threshold SI is defined by the operator of the communication network.
- the achievement of this threshold S1 terminates a first phase PI, called “detection phase”, after which the nominal registration server 40 is deemed unreachable.
- the second phase P2 is then triggered.
- the interrogation server 20 transfers during a step E5 the request SIP REGISTER (message M4) to the nominal registration server 40 identified in the step E3.
- step E6 an absence of response to the SIP REGISTER request is noted by the interrogation server 20.
- the SIP protocol provides a mechanism for retransmission of messages, after which after several unanswered sending attempts, the absence of response is considered to be identical to a 408 Request Timeout response code, indicating that no response from the nominal registration server 40 was received in the allotted time for processing the message.
- the lack of response from the nominal registration server 40 results, for example, from a failure of the latter, from disturbed network traffic, or from any other cause that makes it impossible to join it or does not allow the latter to reply. to a received request.
- a new UAR M5 message including a capacity request is sent to the subscriber server 30.
- the capacity request is built in entering the User-Authorization-type field of the UAR M5 message with the value REGISTRA TION_AND_CAPABILITIES.
- the interrogation server 20 increments the counter CPT associated with the recording server 40 in a step E8.
- the counter CPT is incremented with each transmission of a request UAR comprising a request for capacities during the detection phase.
- a counter is associated with each recording server.
- the interrogation server 20 receives a response from the subscriber server 30 in the form of a UAA M6 message including the requested capabilities.
- the interrogation server 20 determines, during a step E10, from the received capacities, a new recording server 41 capable of rendering the service required by the user equipment 10.
- This determined recording server 41 called As a replacement registration server, it thus replaces the nominal registration server 40 at which an attempt to transfer a SIP REGISTER request has previously failed.
- the interrogation server 20 transfers the SIP request REGISTER M7 to the registration server 41 determined in the step E10.
- Steps El to El i are re-implemented each time a service request for a user is received, as long as the detection phase has not ended. That is, as long as the counter associated with the recording server 40, incremented in step E8, does not exceed the threshold S1.
- the nominal registration server 40 is deemed unreachable and the second optimization phase P2 is triggered.
- This second phase P2 differs from the first phase PI by the absence of steps E5 and E6. Only steps E1 to E4 and E7 to E1 are implemented for the processing of a service request relating to a user.
- the interrogation server 20 verifies by means of the counter CPT associated with the nominal registration server 40 if the threshold SI conditioning the transition to the second optimization phase P2 has been reached.
- the achievement of this threshold S1 terminates the first phase of detection PI, after which the nominal registration server 40 is deemed unreachable.
- the transfer of the service request relating to a user to the nominal registration server 40 is then inhibited during the optimization phase.
- the steps E7 to El i are then implemented as described above in connection with the first phase PI, in order to transfer the service request relating to a user to the replacement registration server 41.
- a single transfer of the request service is thus achieved during the second phase P2.
- the method advantageously avoids waiting and retransmissions (in step E5) generated by a lack of response from the nominal recording server 40. This allows in particular to optimize the use of network resources.
- the interrogation server 20 continues during the second phase P2 to increment the counter CPT associated with the nominal registration server 40 during a step E8.
- This step makes it possible during this second phase P2 to define, for example, a second threshold S2 associated with the nominal registration server 40 which, when it is exceeded, makes it possible to return to a nominal processing of the service request.
- This second threshold makes it possible, for example, to detect that a certain number of UAR requests comprising a capacity request have been sent. It is then likely that the nominal registration server 40 is again in operation for example if a failure had occurred.
- this second phase P2, El to E4 and E7 to El i are again implemented at each reception of a service request relating to a user until reaching for example the second threshold S2 allowing a return to a nominal processing of the service requests relating to a user or intervention of the network operator to replace the nominal registration server, which terminates the second phase P2.
- the polling server (20) transfers the service request relating to the user to the nominal registration server (40).
- the counter CPT is reset, thus allowing a return to a nominal treatment of the service requests.
- a new attempt to transfer the service request relating to the user to this server is, for example, performed when a new threshold value S n is reached.
- FIG. 4b describes the steps of the method of processing a service request relating to a user according to a second embodiment.
- the detection that the nominal registration server 40 is unreachable is implemented in the IMS communication network 1 by the subscriber server 30.
- the counter associated with the nominal registration server 40 is no longer managed by the interrogation server 20 but by the subscriber server 30.
- the subscriber server 30, more specifically the subscriber module calculation then implements a step E8b, similar to step E8.
- the counter associated with the nominal registration server 40 is then incremented by the subscriber server 30 upon receipt of a UAR message M5 comprising a request for capabilities.
- the determination that the nominal recording server 40 is deemed unreachable, allowing the triggering of the second phase P2 is performed by the subscriber server 30 during a step E4b, similar to the step E4.
- the interrogation server 20 implements the steps E1 and E2 previously described in relation to the first embodiment and transmits a nominal request UAR M2.
- the subscriber server 30 responds directly in the second phase P2 with a UAA message comprising capabilities, received by the interrogation server 20 in the step E9.
- the subscriber server 30 thus responds as if it had received from the interrogation server 20 a request UAR comprising a request for capabilities.
- the interrogation server 20 is thus arranged to receive capacity information without having previously requested it. It is emphasized here that, since the steps E3 to E7 described previously in relation with FIG.
- step E7 UAR (step E7) and UAA (step E3) between the interrogation server 20 and the subscriber server 30.
- the sending of a SIP-REGISTER request to the nominal registration server 40 is also avoided (step E5 ). This makes it possible in particular to optimize the use of the resources of the network, by lightening more particularly the traffic of signaling messages due to the redundancy of the UAR and UAA messages.
- Steps E10 and E1 are then implemented in accordance with what has been previously described in connection with FIG. 4a.
- the management of the counter to determine that a recording server is unreachable is centralized at the subscriber server 30, and is therefore also easier to implement.
- This second embodiment makes it possible in particular for the subscriber server 30 to respond to an interrogation server for a service request relating to the user without the interrogation server explicitly having to request capabilities.
- This second embodiment also makes it possible to benefit from the advantages of implementing the processing method to an interrogation server receiving a service request relating to the user and having, for example, little traffic, because of the in account during the step E8b of updating the counter of the UAR messages received from the other interrogation servers.
- a counter associated with a particular type of request (UAR or LIR in the embodiments described above)
- a global counter incremented indifferently at the time of transmission a request UAR or an LIR request each comprising a request for capacities when the counter is managed by the interrogation server 20 as described above in the first embodiment, or when receiving these requests without request explicit capabilities when the counter is managed by the subscriber server 30 as previously described in the second embodiment. Taking into account all the requests giving rise to the issuance of a UAR or LIR message makes it possible in particular to trigger the P2 optimization phase more quickly.
- a threshold is associated with each counter defined by type of request. This makes it possible to adopt more refined service restoration strategies, for example with several threshold values depending on the incoming traffic or time slots.
- the network operator may for example choose to implement the second phase P2 faster for time slots with high network traffic.
- FIG. 2 represents an interrogation server 20 arranged to process a service request relating to a user. It includes:
- a first send / receive module 200 arranged to receive a service request relating to a user and transfer it to a recording server;
- a second sending / receiving module 202 arranged for interrogating a subscriber server, in order to obtain in return an identifier of a registration server associated with the user or of capacities that a registration server must have to be able to provide authorized services for a user;
- a selection module 204 arranged to determine a replacement recording server from received capacities
- control module 206 arranged to control an interrogation of the subscriber server.
- control module 206 is arranged to interrogate the subscriber server in order to obtain an identifier of a nominal registration server associated with the user and following a failed transfer of the service request. to the identified nominal registration server, to poll the subscriber server for capabilities.
- control module 206 is arranged to control a single transfer of the service request for a user to a recording server.
- the interrogation server 20 further comprises a calculation module 208, arranged to update at least one counter relating to an unreachable state of a recording server.
- the calculation module 208 determines that the nominal recording server is deemed unreachable and triggers the second phase P2.
- FIG. 3 represents a subscriber server 30 arranged to process a service request relating to a user. It includes:
- a send / receive module 300 arranged to answer a query from an interrogation server, in particular to provide it with an identifier of a registration server associated with the user or to provide the user with capabilities that a registration server must have in order to provide the authorized services for a user;
- control module 302 arranged to control the response to the interrogation server.
- the subscriber server 30 further comprises a calculation module 304, arranged to update at least one counter relating to an unreachable state of a recording server.
- control module 302 is arranged to control a supply of capacity directly in response to a request for a server identifier. nominal registration, corresponding to the record server deemed unreachable.
- module may correspond in this document to both a software component, a hardware component or a set of hardware and / or software components, capable of implementing a function or a set of functions, as described above for the module concerned.
- a software component corresponds to one or more computer programs, one or more subroutines of a program, or more generally to any element of a program or software.
- Such a software component is stored in memory and then loaded and executed by a data processor of a physical entity and is able to access the hardware resources of this physical entity (memories, recording media, communication buses, electronic cards of a physical entity). input / output, user interfaces, etc.).
- a material component corresponds to any element of a material set (or hardware). It may be a programmable hardware component or not, with or without an integrated processor for running software. This is for example an integrated circuit, a smart card, an electronic card for executing a firmware, etc.
- the modules 200, 202, 204, 206, and 208 are arranged to implement the previously described treatment method.
- These are preferably software modules comprising software instructions for executing the steps of the previously described processing method, implemented by an interrogation server.
- the invention therefore also relates to:
- a program for an interrogation server comprising program code instructions intended to control the execution of the steps of the previously described processing method, when said program is executed by said interrogation server;
- modules 300, 302, and 304 are arranged to implement the previously described treatment method. These are preferably software modules comprising software instructions for executing the steps of the previously described processing method, implemented by a subscriber server.
- the invention therefore also relates to:
- a program for a subscriber server comprising program code instructions intended to control the execution of the steps of the previously described processing method, when said program is executed by said subscriber server;
- a recording medium readable by a subscriber server on which the program for a subscriber server is recorded.
- the software modules can be stored in or transmitted by a data carrier.
- a data carrier This may be a hardware storage medium, for example a CD-ROM, a magnetic diskette or a hard disk, or a transmission medium such as an electrical signal, optical or radio, or a telecommunications network.
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- Computer Networks & Wireless Communication (AREA)
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- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1359388A FR3011423A1 (fr) | 2013-09-30 | 2013-09-30 | Technique de restauration d'un service dans un reseau |
PCT/FR2014/052406 WO2015044596A1 (fr) | 2013-09-30 | 2014-09-25 | Technique de restauration d'un service dans un réseau |
Publications (1)
Publication Number | Publication Date |
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EP3053321A1 true EP3053321A1 (fr) | 2016-08-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14796195.7A Withdrawn EP3053321A1 (fr) | 2013-09-30 | 2014-09-25 | Technique de restauration d'un service dans un réseau |
Country Status (4)
Country | Link |
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US (1) | US20160241601A1 (fr) |
EP (1) | EP3053321A1 (fr) |
FR (1) | FR3011423A1 (fr) |
WO (1) | WO2015044596A1 (fr) |
Families Citing this family (4)
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---|---|---|---|---|
US9479499B2 (en) * | 2013-03-21 | 2016-10-25 | Tencent Technology (Shenzhen) Company Limited | Method and apparatus for identity authentication via mobile capturing code |
US10554694B2 (en) * | 2015-07-20 | 2020-02-04 | At&T Intellectual Property I, L.P. | System and method for using software defined networking in internet protocol multimedia subsystems |
DE102016221985A1 (de) * | 2016-11-09 | 2018-05-09 | Volkswagen Aktiengesellschaft | Verfahren zur Datenübertragung in einem Fahrzeug-Kommunikationsnetzwerk, Fahrzeug- Kommunikationsnetzwerk, Teilnehmer und Fahrzeug |
CN115665246B (zh) * | 2022-09-01 | 2024-03-08 | 浪潮通信信息系统有限公司 | 注册请求处理方法、装置、设备及存储介质 |
Family Cites Families (9)
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CN100382503C (zh) * | 2005-06-20 | 2008-04-16 | 华为技术有限公司 | 一种在用户注册过程中注册异常的处理方法 |
CN101170553B (zh) * | 2006-10-24 | 2011-07-20 | 华为技术有限公司 | 实现互联网协议多媒体子系统容灾的方法和装置 |
WO2009012814A1 (fr) * | 2007-07-23 | 2009-01-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Procédé et appareil à usage dans un réseau de communications |
CN102098652B (zh) * | 2008-01-18 | 2012-12-12 | 华为技术有限公司 | 一种为用户提供业务的方法、系统和装置 |
US8369313B2 (en) * | 2008-12-17 | 2013-02-05 | At&T Intellectual Property I, L.P. | IMS and method of multiple S-CSCF operation in support of single PUID |
US8619547B2 (en) * | 2010-11-10 | 2013-12-31 | At&T Intellectual Property I, L.P. | Communication system with failover communication services |
US8582544B2 (en) * | 2010-11-18 | 2013-11-12 | At&T Intellectual Property I, L.P. | Communication device for configuring failover communication services |
US8533348B2 (en) * | 2011-10-18 | 2013-09-10 | At&T Intellectual Property I, L.P. | Failover communication services |
US9578068B2 (en) * | 2012-09-24 | 2017-02-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for processing an IMS session |
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2013
- 2013-09-30 FR FR1359388A patent/FR3011423A1/fr not_active Withdrawn
-
2014
- 2014-09-25 WO PCT/FR2014/052406 patent/WO2015044596A1/fr active Application Filing
- 2014-09-25 EP EP14796195.7A patent/EP3053321A1/fr not_active Withdrawn
- 2014-09-25 US US15/025,810 patent/US20160241601A1/en not_active Abandoned
Non-Patent Citations (2)
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Also Published As
Publication number | Publication date |
---|---|
US20160241601A1 (en) | 2016-08-18 |
WO2015044596A1 (fr) | 2015-04-02 |
FR3011423A1 (fr) | 2015-04-03 |
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