Method and system for handling a network-identified emergency session
First Claim
1. A method for establishing an emergency session in a communication system which includes at least one user equipment and one or more network entities involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is sent to the user equipment for informing the user equipment that the initiated session is an emergency session,wherein, when the network entity detects that the session to be initiated is an emergency session, an emergency center is informed on the emergency session to be established, and said information is returned to the user equipment only after receipt of a response from the emergency center, the emergency session then being established between the user equipment and the emergency center.
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Accused Products
Abstract
The invention relates to a method and system for establishing an emergency session in a communication system which includes at least one user equipment and one or more network entities involved in establishing an emergency session. When the user equipment initiates a session by sending a message to a network entity indicating an identifier, e.g. the call number or logical name of a called entity, one of said network entities analyses the received identifier. When detecting that the session to be initiated is an emergency session, an information is returned to the user equipment for informing the latter that the initiated session is an emergency session. The user equipment thereupon initiates the execution of an emergency session. Thus, even when the user equipment is unable to detect, by itself, that the intended session is an emergency session, the network will inform the user equipment on the emergency session for ensuring appropriate handling thereof.
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Citations
51 Claims
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1. A method for establishing an emergency session in a communication system which includes at least one user equipment and one or more network entities involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is sent to the user equipment for informing the user equipment that the initiated session is an emergency session,
wherein, when the network entity detects that the session to be initiated is an emergency session, an emergency center is informed on the emergency session to be established, and said information is returned to the user equipment only after receipt of a response from the emergency center, the emergency session then being established between the user equipment and the emergency center.
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8. A method for establishing an emergency session in a communication system which includes at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is returned to the user equipment for informing the user equipment that the initiated session is an emergency session,
comprising a further step wherein the user equipment reinitiates the session by sending a message to the call controlling network, the message comprising said information.
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10. A method for establishing an emergency session in a communication system which includes at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is returned to the user equipment for informing the user equipment that the initiated session is an emergency session,
comprising a further step wherein the user equipment initiates a new session by sending a message to the call controlling network element the message comprising the said information.
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11. A method for establishing an emergency session in a communication system which includes at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is returned to the user equipment for informing the user equipment that the initiated session is an emergency session,
comprising the further step of, in response to receiving the information, a network initiating the execution of the emergency session.
- 12. A method for establishing an emergency session in a communication system which includes at least one user equipment, at least one call controlling network element involved in establishing an emergency session, and an emergency center, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, the network element sends an information to the emergency center or to an intermediate network element for forwarding the information to the emergency center, said information informing the emergency center on the emergency session to be established, an indication of the emergency session being sent to the user equipment for informing the user equipment that the initiated session is an emergency session.
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15. A communication system for establishing an emergency session, the communication system including at least one user equipment and one or more network entities involved in establishing an emergency session, wherein
said user equipment is configured to initiate a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities is configured to analyse the received identifier, when detecting that the session to be initiated is an emergency session, said analysing network entity or another network entity is configured to send an information to the user equipment for informing the latter that the initiated session is an emergency session, wherein the network entity, when detecting that the session to be initiated is an emergency session, is configured to inform an emergency center on the emergency session to be established, and to send said information to the user equipment only after receipt of a response from the emergency center, the emergency session then being established between the user equipment and the emergency center.
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22. A communication system for establishing an emergency session, the communication system including at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element is configured to analyse the received identifier, wherein, when detecting that the session to be initiated is an emergency session, to send an information to the user equipment for informing the user equipment that the initiated session is an emergency session,
wherein the user equipment is configured to reinitiate the session by sending a message to the call controlling network element, the message comprising the said information.
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24. A communication system for establishing an emergency session, the communication system including at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element is configured to analyse the received identifier, wherein, when detecting that the session to be initiated is an emergency session, to send an information to the user equipment for informing the user equipment that the initiated session is an emergency session,
wherein the user equipment is configured to initiate a new session by sending a message to the call controlling network element, the message comprising the said information.
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25. A communication system for establishing an emergency session, the communication system including at least one user equipment and at least one call controlling network element involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element is configured to analyse the received identifier, wherein, when detecting that the session to be initiated is an emergency session, to send an information to the user equipment for informing the user equipment that the initiated session is an emergency session,
wherein a network is configured to initiate the execution of the emergency session in response to receiving the information.
- 26. A communication system for establishing an emergency session, the communication system including at least one user equipment, at least one call controlling network element involved in establishing an emergency session, and an emergency center, wherein, when said user equipment initiates a session by sending a message to the call controlling network element indicating an identifier of a called entity, the call controlling network element is configured to analyse the received identifier, and, when detecting that the session to be initiated is an emergency session, to send an information to the emergency center or to an intermediate network element for forwarding the information to the emergency center, said information informing the emergency center on the emergency session to be established, an indication of the emergency session being sent to the user equipment for informing the user equipment that the initiated session is an emergency session.
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29. A method for establishing an emergency session in a communication system which includes at least one user equipment and one or more network elements involved in establishing a session, wherein, when said user equipment initiates a session by sending a message indicating an identifier of a called entity, one of the network elements analyses the identifier of the message, and, when detecting that the session to be initiated is an emergency session, an information is returned to the user equipment for informing the user equipment that the initiated session is an emergency session,
comprising a further step wherein, the user equipment initiates the execution of an emergency session upon receipt of said information informing the user equipment that the initiated session is an emergency session.
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34. A communication system for establishing an emergency session, the communication system including at least one user equipment and one or more network entities involved in establishing a session, wherein
said user equipment is configured to initiate a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities is configured to analyze the received identifier, when detecting that the session to be initiated is an emergency session, said analyzing network entity or another network entity is configured to send an information to the user equipment for informing the user equipment that the initiated session is an emergency session, wherein the user equipment is configured to initiate, when receiving the information that the initiated session is an emergency session, the execution of an emergency session.
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36. A user equipment comprising:
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means for sending a message to a network entity for initiating a session, the message indicating an identifier of a called entity; means for receiving, when the session to be initiated is an emergency session, an information informing the user equipment that the initiated session is an emergency session; and means for initiating the execution of an emergency session upon receipt of said information. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for establishing an emergency session in a communication system which includes at least one user equipment and one or more network elements involved in establishing a session, wherein, when said user equipment initiates a session by sending a message indicating an identifier of a called entity, one of the network elements analyses the identifier of the message, and, when detecting that the session to be initiated is an emergency session, an information is always returned to the user equipment for informing the user equipment that the initiated session is an emergency session, in order to guarantee that the emergency session to be established has enough network resources.
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46. A network element for use in a communication system, wherein the network element is adapted to:
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receive a message from a user equipment initiating a session, the message indicating an identifier of a called entity; analyze the identifier of the message; and
,when detecting that the session to be initiated is an emergency session, to always return an emergency session information to the user equipment for informing the user equipment that the initiated session is an emergency session. - View Dependent Claims (47)
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48. A communication system for establishing an emergency session, the communication system including at least one user equipment and one or more network entities involved in establishing a session, wherein
said user equipment is configured to initiate a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities is configured to analyze the received identifier, when detecting that the session to be initiated is an emergency session, said analyzing network entity or another network entity is configured to always send an information to the user equipment for informing the user equipment that the initiated session is an emergency session, in order to guarantee that the emergency session to be established has enough network resources.
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49. A method for establishing an emergency session in a communication system which includes at least one user equipment and one or more network entities involved in establishing an emergency session, wherein, when said user equipment initiates a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities analyses the received identifier, and, when detecting that the session to be initiated is an emergency session, an information is sent to the user equipment for informing the user equipment that the initiated session is an emergency session, wherein the user equipment sends an acknowledgment message to a call controlling network element in response to receiving the information informing the user equipment that the initiated session is an emergency session.
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50. User equipment comprising:
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means for sending a message to a network entity for initiating a session, the message indicating an identifier of a called entity; means for receiving, when the session to be initiated is an emergency session, an information informing the user equipment that the initiated session is an emergency session; and means for sending an acknowledgment message to a call controlling network element in response to receiving the information informing the user equipment that the initiated session is an emergency session.
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51. A communication system for establishing an emergency session, the communication system including at least one user equipment and one or more network entities involved in establishing an emergency session, wherein
said user equipment is configured to initiate a session by sending a message to a network entity indicating an identifier of a called entity, one of said network entities is configured to analyse the received identifier, when detecting that the session to be initiated is an emergency session, said analyzing network entity or another network entity is configured to send an information to the user equipment for informing the user equipment that the initiated session is an emergency session, and wherein the user equipment is configured to send an acknowledgment message to a call controlling network element in response to receiving the information informing the user equipment that the initiated session is an emergency session.
Specification