Method, apparatus and computer program
AssigneeNokia Technologies Oy
InventorAshok Kumar Nayak
Life of this patent
Estimating the term…
Abstract
An apparatus (308) comprising means for: receiving, from a second user equipment (312), a request for communication with a first user equipment (302), after a period of time during which the apparatus was not operating; receiving information from a home subscriber server (310) comprising an expiry value for registration of the first user equipment with the apparatus; and determining that the registration has expired.
Claims19
An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:
- receiving a registration request from a first user equipment, wherein the registration request comprises an initial registration or a re-registration;
- sending, in response to receipt of the registration request, a server assignment request message, comprising an expiry time and a timestamp, for the first user equipment to a home subscription server, wherein an expiry value and the timestamp are updated during the re-registration;
- receiving, from a second user equipment, a request for communication with the first user equipment, after a period of time during which the apparatus was not operating;
- receiving information from the home subscriber server comprising the expiry value for registration of the first user equipment with the apparatus;
- and
- determining that the registration has expired.
A method comprising:
- receiving a registration request from a first user equipment, wherein the registration request comprises an initial registration or a re-registration;
- sending, in response to receipt of the registration request, a server assignment request message, comprising an expiry time and a timestamp, for the first user equipment to a home subscription server, wherein an expiry value and the timestamp are updated during the re-registration;
- receiving, at an apparatus and from a second user equipment, a request for communication with the first user equipment, after a period of time during which the apparatus was not operating;
- receiving information from the home subscriber server comprising the expiry value for registration of the first user equipment with the apparatus;
- and
- determining that the registration has expired.
A non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the following:
- receiving a registration request from a first user equipment, wherein the registration request comprises an initial registration or a re-registration;
- sending, in response to receipt of the registration request, a server assignment request message, comprising an expiry time and a timestamp, for the first user equipment to a home subscription server, wherein an expiry value and the timestamp are updated during the re-registration;
- receiving, from a second user equipment, a request for communication with the first user equipment, after a period of time during which the apparatus was not operating;
- receiving information from the home subscriber server comprising the expiry value for registration of the first user equipment with the apparatus;
- and
- determining that the registration has expired.
Dependencies are inferred from the claim text.