Method and arrangement for optimizing the re-establishment of connections in a cellular radio system supporting real time and non-real time communications
AssigneeNokia Corporation
InventorsJukka Vialen, Jaakko Rajaniemi, Serge Haumont
Life of this patent
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Abstract
A method and arrangement are disclosed for determining the expiry time for a period during which the re-establishment of lost radio bearers is allowable. There is determined a first expiry time (206, 207) for a period during which the re-establishment of lost radio bearers used to provide services of a first category, like real time services, is allowable. Additionally there is determined a second expiry time (208, 209) for a period during which the re-establishment of lost radio bearers used to provide services of a second category, like non-real time services, is allowable.
Claims20
A method for determining the expiry time for a period during which the re-establishment of a lost radio connection including at least one radio bearer, is allowable, comprising the steps of:
- determining a first expiry time for a period during which the re-establishment of the lost radio connection in respect of radio bearers used to provide a service or services of a first category is allowable and
- determining a second expiry time for a period during which the re-establishment of the lost radio connection in respect of radio bearers used to provide a service or services of a second category is allowable.
A method for responding to a situation where a mobile station of a cellular radio network detects a failure in a radio connection between itself and a network node of the cellular radio network, comprising the steps of:
- a) starting a first timer,
- b) checking, whether the mobile station is within an in service area,
- c) as a response to the mobile station being within an in service area, initiating the re-establishment of the radio connection,
- a′) starting a second timer,
- d′) as a response to the first timer reaching a first expiry value without the mobile station finding itself to be within an in service area, disabling the re-establishment of the radio connection in respect of radio bearers used to provide a service or services of a first category and
- d″) as a response to said second timer reaching a second expiry value without the mobile station finding itself to be within an in service area, disabling the re-establishment of the radio connection in respect of radio bearers used to provide a service or services of a second category.
A method for responding to a situation where a network node of a cellular radio network detects a failure in a radio connection between itself and a mobile station of the cellular radio network, comprising the steps of:
- a) starting a first timer,
- b) checking, whether a connection re-establishment request has been received from the mobile station,
- c) as a response to a connection re-establishment request having been received from the mobile station, initiating the re-establishment of the radio connection,
- a′) starting a second timer,
- d′) as a response to the first timer reaching a first expiry value without a connection re-establishment request having been received from the mobile station, disabling the re-establishment of the radio connection in respect of radio bearers used to provide a service or services of a first category and
- d″) as a response to said second timer reaching a second expiry value without a connection re-establishment request having been received from the mobile station, disabling the re-establishment of the radio connection in respect of radio bearers used to provide a service or services of a second category.
A communications device of a cellular radio system, comprising:
- means for detecting a failure in a radio connection including active radio bearers,
- means for determining a first expiry time for a period during which the re-establishment of the lost radio connection in respect of radio bearers used to provide a service or services of a first category is allowable and
- means for determining a second expiry time for a period during which the re-establishment of the lost radio connection in respect of radio bearers used to provide a service or services of a second category is allowable.
Dependencies are inferred from the claim text.