Methods and mechanisms to enable priority calls in a cell through pre-emption of other calls
First Claim
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1. A method for managing a priority call in a serving cell, comprising:
- when the priority call is in progress in the serving cell, an access device in the serving cell determining an amount of resources available in the serving cell; and
when the amount of resources available in the serving cell is below a threshold, the access device causing at least one non-priority call in the serving cell to be handed over to a target cell, wherein the access device includes, in a handover message that triggers the handover to the target cell, a timer value and/or an indicator indicating a cause of the handover,wherein the handover message is sent to a core network element that performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, the core network element being one of;
a Mobility Management Entity (MME) associated with the serving cell;
an MME associated with the target cell;
a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell;
ora Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the target cell.
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Abstract
A method is provided for managing a priority call in a serving cell. The method comprises, when a priority call is in progress in the serving cell, an access device in the serving cell determining an amount of resources available in the serving cell. The method further comprises when the amount of resources available in the serving cell is below a threshold, the access device causing at least one non-priority call in the serving cell to be handed over to a target cell.
12 Citations
29 Claims
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1. A method for managing a priority call in a serving cell, comprising:
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when the priority call is in progress in the serving cell, an access device in the serving cell determining an amount of resources available in the serving cell; and when the amount of resources available in the serving cell is below a threshold, the access device causing at least one non-priority call in the serving cell to be handed over to a target cell, wherein the access device includes, in a handover message that triggers the handover to the target cell, a timer value and/or an indicator indicating a cause of the handover, wherein the handover message is sent to a core network element that performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, the core network element being one of; a Mobility Management Entity (MME) associated with the serving cell; an MME associated with the target cell; a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell;
ora Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the target cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An access device in a serving cell, comprising:
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a processor configured to determine an amount of resources available in the serving cell when a priority call is in progress in the serving cell, and, when the amount of resources available in the serving cell is below a threshold, the access device causes at least one non-priority call in the serving cell to be handed over to a target cell, wherein the access device includes, in a handover message that triggers the handover to the target cell, a timer value and/or an indicator indicating a cause of the handover, wherein the access device sends the handover message to a core network element that performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, the core network element being one of; a Mobility Management Entity (MME) associated with the serving cell; an MME associated with the target cell; a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell;
ora Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the target cell. - View Dependent Claims (12, 13, 15, 16, 17, 18, 19, 20, 21)
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14. A non-transitory computer medium storing computer readable instructions executable by a processor to implement a method on an access device in a serving cell, the method comprising:
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when a priority call is in progress in the serving cell, determining an amount of resources available in the serving cell; when the amount of resources available in the serving cell is below a threshold, causing at least one non-priority call in the serving cell to be handed over to a target cell; and sending a handover message that triggers the handover to the target cell, the handover message including a timer value and/or an indicator indicating a cause of the handover, wherein the access device sends the handover message to a core network element that performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, the core network element being one of; a Mobility Management Entity (MME) associated with the serving cell; an MME associated with the target cell; a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell; and a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the target cell.
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22. A core network element, comprising:
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a processor configured to receive, when a priority call is in progress in a serving cell associated with the core network element, a handover message from an access device in the serving cell, wherein the handover message triggers a handover of at least one non-priority call to a target cell, the handover occurring when the access device determines that an amount of resources available in the serving cell is below a threshold, wherein the handover message includes a timer value and/or an indicator indicating a cause of the handover, wherein, upon receiving the handover message, the core network element performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, wherein the core network element is one of; a Mobility Management Entity (MME) associated with the serving cell; an MME associated with the target cell; and a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification