Orange

France Telecom

3g Licensing S.a.

José Doree

Jean-Claude Le Rouzic

Antoine Mouquet

Lionel Morand

Guy Loaec

Jean Claude Le Rouzic

A method for processing messages, implemented by a device in a telecommunication network, is described. The method includes obtaining a correlation identifier, associated uniquely with a service performed by the telecommunication network and allowing the establishment of a correlation between messages that are associated with the service, regardless of the protocols with which the messages conform and/or of the interfaces over which the messages are conveyed. The method also includes saving the correlation identifier in a context associated with the service, and sending at least one message with a view to performing the service, each message sent comprising the correlation identifier saved in the context associated with the service.

Generating and saving correlation identifiers in context of services

A method of media state synchronization is described. An applicative entity sends a request to a rules control entity asking the rules control entity to dispatch a message to the applicative entity describing the state of the media controlled by this applicative entity and currently being used. On expiry of a default deadline or one contained in the request, the rules control entity sends the applicative entity a message in which the rules control entity describes the state of the media. Subsequent to the receipt of the message, the applicative entity does not undertake any action if the media list provided by the rules control entity is identical to that known to the applicative entity, or corrects its state of the media if a subset of the media of the list is different from the list of media known to the applicative entity, or requests the freeing of the session if the set of the media of the list is different from the list of media known to the applicative entity or if the session itself is unknown to the applicative entity.

Method of media state synchronization

A method of determining a geographical location of an access point in a wireless local access network allowing access to a multimedia IP network core, implemented by an input server of the network core, is described. After receipt of a message from a terminal via the access point containing information on the location of the terminal inserted into the message signal, a material identifier of the access point is extracted and stored with the location information. A geographical location of the access point is determined using location information stored with the material identifier of the access point. The geographical location of the access point associated with the extracted material identifier may be inserted into the message signal as the geographical location of the terminal, prior to transmitting this message to another piece of equipment in the network core.

Method for determining a geographical location of an access point in a wireless local access network

The invention relates to a method for detecting a multimedia communication problem. In one aspect, this is implemented by an execution entity, in a processing phase. A message(s) is received that belongs to at least one stream to be monitored relating to at least one media stream. A correspondence between the received message(s) and rule(s) associated with a stream(s) to be monitored is verified. If verified an error detection massage is sent to a checking entity separate from the execution entity, via a rule management entity.

System and method for detecting, managing and relaying a multimedia communication problem and corresponding execution, checking and rule management entities

Some embodiments relate to a selection method enabling a first user of an IP network to select one client device from a plurality of client devices of a second user connected to the IP network. The method comprises the client device of the first user sending a request to the second user the request being of a dedicated type or having a header containing a dedicated indicator. At least one of the client devices of the second user that has received the request responds to the first user message via a request indicating the technical capabilities of the client device of the second user and requests the client device of the first user to supply the technical capabilities of that client device of the first user. The method may have applications to IMS networks.

Method of dynamic selection, by a caller, from a plurality of terminals of a callee

A method is described, the method relating to control of a communication between a first device and a second device using a communication protocol including at least a first transaction, and at least one subsequent second transaction. The method can include transmission, by the first device to the second device during the first transaction, of both a maximum acceptable delay between the end of the first transaction and the beginning of the second transaction, as well as an explicit indication of the type of message characterizing the beginning of the second transaction. The second device can then trigger a timer for the delay. The method is applicable to IMS networks.

Method for controlling a communication comprising multiple transactions

The disclosed technology relates to a method for managing a multimedia session between a calling terminal and at least one called terminal. In one aspect, the multimedia session comprises a pre-call setup phase and a call phase. According to the disclosed technology, the method comprises, during the pre-call setup phase, a reception of an INVITE message generated by a calling terminal. The INVITE message comprises a description field describing the multimedia session and containing information relating to a set of media streams. A response is generated to the INVITE message, wherein the response comprises a header containing at least one media type and at least one first call parameter applicable to at least one media stream of the media type, among the set of media streams.

Method and entity for managing a multimedia session between a calling terminal and at least one called terminal, corresponding terminal and computer programs

A method of prioritizing a media stream belonging to a plurality of media streams associated with a communication session. The method includes: a first control entity generating or obtaining from a session control message priority information giving a relative priority to the stream within the session relative to the other streams of the plurality of media streams; and a second control entity inserting the priority information into a resource control message for sending to a media entity.

Method for prioritising media streams in a communications network

A method for changing mobile networks is described. The method may include detecting a need to switch a communication in which a terminal is participating, from a first mobile network to a second mobile network connected to the same IP network; transmission of the IMSI identifier of the terminal, by a first management center of the first mobile network to a second management center of the second mobile network; sending the IMSI identifier to the core of the IP network from the second management center; receiving a request containing the IMSI identifier by an access transfer control entity; and identifying the contact address of the terminal using the IMSI identifier. A recording server in charge of the terminal has previously obtained the IMSI identifier and sent it to the access transfer control entity.

Method for changing mobile network

A method for controlling a session for providing a certain service, at least one data stream being associated with the session. The method includes: obtaining a session control policy from a session control message, or generating such a policy as a function of a type of the service, which session control policy is to be implemented in the event of at least one data stream being inactive, i.e. in the event of a data stream associated with the session not being set up, or being released prematurely; sending the session control policy in a session control message to a control entity in charge of implementing the session control policy; and on detecting inactivity of at least one data stream, implementing the session control policy.

Method of controlling a session related to a service

A method of maintaining transport address associations in a transport address translation entity connected in series between a first device and a second device is disclosed. The first device can use a first transport protocol to send a first message to cause the transport address translation entity to make a first association of a first public address with a first private address. On receiving a response to the first message from the second device, the first device can use a second transport protocol to send a second message to cause the transport address translation entity to make a second association of a second private address with a second public address and with the second transport protocol. The second message can contain correspondence information that is also contained in the first message and/or in the response to the first message.

Method and device for maintaining transport address associations for an address translation entity

A method is disclosed of processing emergency call transfer requests by an entry server of an IMS core network. The method includes configuring a table associating at least one emergency call session transfer number with a plurality of emergency call session transfer nodes, each node being identified in the table by an address. Upon receiving a request to transfer an emergency call session from a first access network to a second access network, the request including an emergency call session transfer number, the table is used to determine at least one address of a transfer node associated with the transfer number contained in the request to transfer the request. The transfer request is then sent to the at least one determined address.

Method of processing emergency call transfer requests

A method of dynamically updating DNS information in an IP network. A first entity of the IP network, distinct from DNS servers of the IP network, receives a request from a second entity of the network, likewise distinct from the DNS servers but possessing a copy of DNS information, constituting a record in at least one DNS server of the IP network. The first entity responds to the request by sending a message to the second entity, including an indication about the need to modify the copy. On receiving the message, the second entity determines whether the indication includes at least one additional instruction. If so, the second entity: performs a DNS interrogation, and on receiving a response, modifies its copy of the DNS information based the response and the additional instruction; or modifies its copy of the DNS information based on the additional instruction without performing a DNS interrogation.

Method of dynamic updating of information obtained from a DNS server

A method and apparatus are provided for selecting a network resource, in which a 'controlled-entity' device connected to an IP network () is also capable of accessing at least one other physical and/or virtual telecommunications network. According to the method, after a step in which a request is sent or relayed by the controlled-entity or is sent to the controlled-entity, the controlled-entity then receives a session control signal containing a resource identifier representative of the physical or virtual network that the controlled-entity may or must use in order to satisfy the request.

Method of selecting a network resource

A method for the transmission of a message by a server of a multimedia IP core network is disclosed. In one aspect, following the reception, by the server, of a request from a terminal to register with the core network, the registration request proposing an authentication method for the establishment of a secure tunnel between the terminal and an entity for the connection of the terminal to the core network. The transmission method may comprise identifying an access network used by the terminal for registering with the multimedia IP core network, drawing-up, according to the identified access network, a recommendation concerning the establishment or otherwise of the secure tunnel between the terminal and the connection entity for the authentication method, and inserting said recommendation into the message transmitted by the server.

Growing community of inventors

Lannion, France

José Doree