Methods and arrangements in a wireless communication network for handling at least one primary tracking area
First Claim
1. A method in a data collection network node for gathering information to be used for identifying at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the data collection network node, the method comprising:
- retrieving a tracking area identity;
registering information about usage of a tracking area identified by the retrieved tracking area identity;
determining a measure for the user equipment being located in the tracking area identified by the retrieved tracking area identity, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in that tracking area, the time spent by the user equipment in the tracking area, and tracking area border crossings by the user equipment; and
selecting said tracking area identity as the identity of said at least one primary tracking area, if the measure exceeds a threshold;
wherein the data collection network node comprises a network node that manages the mobility of the user equipment; and
wherein the retrieved tracking area identity is received from a radio network node in the wireless communication network.
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Accused Products
Abstract
A method and arrangement in a data collection network node (130, 140) for gathering information to be used for identification of at least one primary tracking area associated with a user equipment and a method and arrangement in a core network node (101) for selecting at least one tracking area identity identifying at least one tracking area to be used as at least one primary tracking area for a UE are provided. A tracking area identity is retrieved. Information about usage of a tracking area identified by the retrieved tracking area identity is registered. A measure for the user equipment being located in the tracking area is determined. Said at least one tracking area identity identifying at least one tracking area to be used as a primary tracking area is determined, if the measure exceeds a threshold. A method and an arrangement in a second network node (130) for paging a user equipment are provided. When paging the user equipment (140), the second network node first pages the user equipment (140) in the primary tracking area and, if the first page fails, then pages the user equipment (140) in other tracking areas.
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Citations
23 Claims
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1. A method in a data collection network node for gathering information to be used for identifying at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the data collection network node, the method comprising:
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retrieving a tracking area identity; registering information about usage of a tracking area identified by the retrieved tracking area identity; determining a measure for the user equipment being located in the tracking area identified by the retrieved tracking area identity, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in that tracking area, the time spent by the user equipment in the tracking area, and tracking area border crossings by the user equipment; and selecting said tracking area identity as the identity of said at least one primary tracking area, if the measure exceeds a threshold; wherein the data collection network node comprises a network node that manages the mobility of the user equipment; and wherein the retrieved tracking area identity is received from a radio network node in the wireless communication network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method in a data collection network node for gathering information to be used for identifying at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the data collection network node and a core network node, the method comprising:
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retrieving a tracking area identity; registering information about usage of a tracking area identified by the retrieved tracking area identity; selecting the tracking area identity as the identity of said at least one primary tracking area, based on the registered information; sending the tracking area identity to the core network node; and sending the registered information to the core network node; wherein the data collection network node is said user equipment; and wherein said selecting comprises; determining a measure for the user equipment being located in the tracking area identified by the retrieved tracking area identity, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in that tracking area, the time spent by the user equipment in the tracking area, and tracking area border crossings by the user equipment; and selecting said tracking area identity as the identity of said at least one primary tracking area if the measure exceeds a threshold.
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10. A data collection network node configured to gather information to be used for identifying at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the data collection network node and a core network node, the data collection network node comprising:
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a retrieving unit configured to retrieve a tracking area identity; and a processing unit configured to; register information about usage of a tracking area identified by the retrieved tracking area identity; select the tracking area identity as the identity of said at least one primary tracking area, based on the registered information; send the tracking area identity to the core network node; and send the registered information to the core network node; wherein the data collection network node is said user equipment; and wherein to select the tracking area identity as the identity of said at least one primary tracking area, the data collection network node is configured to; determine a measure for the user equipment being located in the tracking area identified by the retrieved tracking area identity, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in that tracking area, the time spent by the user equipment in the tracking area, and tracking area border crossings by the user equipment; and select said tracking area identity as the identity of said at least one primary tracking area if the measure exceeds a threshold.
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11. A method in a core network node for selecting at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the core network node and the user equipment, the method comprising:
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retrieving information about one or more tracking areas for the user equipment; determining a measure for the user equipment being located in each of the one or more tracking areas, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in the tracking area, the time spent by the user equipment in the tracking area, tracking area entries, and tracking area border crossings by the user equipment; selecting at least one of said one or more tracking areas as a primary tracking area, if the measure associated with that tracking area exceeds a first threshold; and selecting at least one of said one or more tracking areas as a secondary tracking area, if the measure exceeds a second threshold, wherein the second threshold is determined based on the retrieved information. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 23)
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19. A core network node configured to select at least one of a plurality of different tracking areas as a primary tracking area in which a particular user equipment is most likely to be located, wherein a wireless communication network comprises the core network node and the user equipment, the core network node comprising:
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a retrieving unit configured to retrieve information about one or more tracking areas for the user equipment; and a processing unit configured to; determine a measure for the user equipment being located in each of the one or more tracking areas, wherein the measure is based on one or more of the probability of receiving a page response from the user equipment if the user equipment is located in the tracking area, the time spent by the user equipment in the tracking area, tracking area entries, and tracking area border crossings by the user equipment; and select at least one of said one or more tracking areas as a primary tracking area, if the measure associated with that tracking area exceeds a first threshold; and select at least one of said one or more tracking areas as a secondary tracking area, if the measure exceeds a second threshold, wherein the second threshold is determined based on the retrieved information.
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20. A method in a network node that manages a list of tracking area identities for paging a user equipment, wherein at least one of the tracking area identities in the list comprises the identity of a primary tracking area, wherein each tracking area identified by the tracking area identities in the list is associated with at least one cell served by a radio network node that is managed by the network node, wherein a wireless communication network comprises the network node, the radio network node, and the user equipment, and wherein at least one of the tracking area identities in said list comprises the identity of a secondary tracking area, the method comprising:
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paging the user equipment in at least one cell associated with said at least one primary tracking area; and if no response is received from the user equipment responsive to said paging; paging the user equipment in cells associated with a set of tracking area identities that are selected among the tracking area identities in said list; paging the user equipment in at least one cell associated with said at least one secondary tracking area. - View Dependent Claims (21, 22)
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Specification