Arrangement and a method in communication networks
First Claim
1. An arrangement within a communication system including a number of radio network control means each controlling a number of base stations, to which a number of mobile stations are attached, comprising:
- functional server nodes forming part of a conglomerate, or pool, of functional server nodes in common controlling said number of radio network control means, each functional server node being able to control any, or a number of, said radio network control means wherein the functional server nodes support transfer/redistribution of mobile stations or mobile station contexts between each other without interrupting the connection of the mobile station; and
message control means for transferring a mobile station from a first-current-functional server node to a second-target-functional server node, the message control means of said first-current-functional server node are adapted to generate an area update or transfer acceptance message comprising an identification of the first-current-functional server node, an identification of the second-target-functional server node and a transfer indication, and to send said area update or transfer acceptance message to the mobile station.
1 Assignment
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Accused Products
Abstract
The present invention relates to an arrangement comprising a functional server node forming part of a conglomerate, or pool, of functional server nodes in common controlling a number of radio network control means, each functional server node being able to control any, or a number of, radio network control means, to which mobile stations are connected. The functional server nodes support transfer/redistribution of mobile stations between each other without interrupting the connection of the mobile stations, a target functional server node, to which it has been decided that a mobile station is to be transferred from a current functional server node, generates an area update or transfer acceptance message comprising an identification of the current functional server node, an identification of the target functional server node and a transfer indications. The invention also relates to a method of redistributing or transferring mobile station contexts.
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Citations
33 Claims
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1. An arrangement within a communication system including a number of radio network control means each controlling a number of base stations, to which a number of mobile stations are attached, comprising:
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functional server nodes forming part of a conglomerate, or pool, of functional server nodes in common controlling said number of radio network control means, each functional server node being able to control any, or a number of, said radio network control means wherein the functional server nodes support transfer/redistribution of mobile stations or mobile station contexts between each other without interrupting the connection of the mobile station; and message control means for transferring a mobile station from a first-current-functional server node to a second-target-functional server node, the message control means of said first-current-functional server node are adapted to generate an area update or transfer acceptance message comprising an identification of the first-current-functional server node, an identification of the second-target-functional server node and a transfer indication, and to send said area update or transfer acceptance message to the mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A functional server node forming part of a conglomerate, or pool, of functional server nodes in common controlling a number of radio network control means, said functional server node being able to control any, or a number of, radio network control means, to which mobile terminal stations are connected, comprising:
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said functional server node is adapted to support transfer/redistribution of mobile stations or mobile station contexts to/from other functional server nodes without the connection of the mobile stations being interrupted, decision control means for receiving, or generating, a decision to transfer a mobile station from a current-functional server node to another target functional server node, message control means for, when a transfer decision is received/taken, generating an area update or transfer acceptance message comprising an identification of said current functional server node itself, an identification of the another target functional server node and a transfer indication, and for sending said message to the mobile station, and means for detecting such a message from another functional server node in its function as a target functional server node. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method for transferring a number of mobile station contexts from a current functional server node forming part of a conglomerate or a pool of functional server nodes in common controlling a number of radio network control means, wherein each functional server node is able to control any, or a number of, radio network control means, to another, target, functional server node of the conglomerate/pool, characterized in that it comprises the steps of:
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receiving an area updating request from a mobile station within the pool/conglomerate area in a first-current-functional server node; generating, or receiving, in the first-current-functional server node, a decision to transfer the mobile terminal station to another-target-functional server node, generating, in the first-current-functional server node, an area update or transfer acceptance message comprising an identification of the first-current-functional server node, an identification of the another-target-functional server node, and a transfer indication, setting a timer to a given value, sending the area update or transfer acceptance message to the mobile station, sending of an area updating request including the information of the area update or transfer acceptance message from the mobile station upon lapse of the timer to the another-target-functional server node using the identification thereof in the area update or transfer acceptance message, or awaiting a message relating to a predetermined relevant action taken by the mobile station, sending an information request from the target functional server node to the current functional server node using the identification information received in the area updating request or other message relating to a predetermined action from the mobile station, returning an information response to the another-target-functional server node, returning a transfer acceptance from the another-target-functional server node to the mobile station. - View Dependent Claims (30, 31, 32, 33)
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Specification