System and method for performing a handover in a mobile communication system
First Claim
1. A method for performing a handover from a first Node B to a second Node B in a mobile communication system comprising a first Radio Network Controller (RNC) for managing the first Node B communicating with a User Equipment (UE) and a second RNC for managing the second Node B to which the UE is to be handed over to, comprising the steps of:
- transmitting a handover request message comprising a resource to be assignment-requested to the second RNC via the first RNC;
receiving resource information indicative of other assignable resources from the second RNC over the first RNC when the second Node B is full of the assignment-requested resource to the UE; and
performing the handover using the received resource information.
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Accused Products
Abstract
A system and method for performing a handover function in a mobile communication system. The system and method for controlling a User Equipment (UE) to perform a handover from a first Node B to a second Node B in a mobile communication system including a first Radio Network Controller(RNC) for managing the first Node B communicating with the UE and a second RNC for managing the second Node B to which the UE is to be handed over. The system and method comprise transmitting a handover request message including a resource to be assignment-requested to the second RNC over the first RNC; receiving resource information indicative of other assignable resources from the second RNC over the first RNC when the second Node B cannot assign the assignment-requested resource to the UE; and performing the handover using the received resource information.
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Citations
18 Claims
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1. A method for performing a handover from a first Node B to a second Node B in a mobile communication system comprising a first Radio Network Controller (RNC) for managing the first Node B communicating with a User Equipment (UE) and a second RNC for managing the second Node B to which the UE is to be handed over to, comprising the steps of:
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transmitting a handover request message comprising a resource to be assignment-requested to the second RNC via the first RNC;
receiving resource information indicative of other assignable resources from the second RNC over the first RNC when the second Node B is full of the assignment-requested resource to the UE; and
performing the handover using the received resource information. - View Dependent Claims (2, 3, 4, 5)
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6. A method for performing a handover using a second Radio Network Controller (RNC) in a mobile communication system comprising a first RNC for managing a first Node B communicating with a User Equipment (UE) and a second RNC for managing a second Node B to which the UE is to be handed over, comprising the steps of:
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receiving a handover request message comprising resource which the UE has requested via the first RNC;
determining whether the second Node B can assign the requested resource;
searching for other assignable resources in the second Node B when the second Node B is full of the requested resource transmitting a message comprising resource information of the assignable resources to the first RNC if assignable resources are searched; and
performing a handover using the resource information. - View Dependent Claims (7, 8, 9)
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10. A communication system for performing a handover from a first Node B to a second Node B, comprising:
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a first Radio Network Controller (RNC) adapted to manage the first Node B in communication with a User Equipment (UE) and a second RNC adapted to manage the second Node B to which the UE is to be handed over to; and
the UE adapted to transmit a handover request message comprising a resource to be assignment-requested to the second RNC via the first RNC, receive resource information indicative of other assignable resources from the second RNC via the first RNC when the second Node B is full of the assignment-requested resource to the UE, and perform the handover using the received resource information. - View Dependent Claims (11, 12, 13, 14)
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15. A communication system for performing a handover from a first Node B to a second Node B, comprising:
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a first Radio Network Controller (RNC) adapted to manage the first Node B in communication with a User Equipment (UE); and
a second RNC adapted to manage the second Node B to which the UE is to be handed over to, determine whether the second Node B can assign the requested resource, search for other assignable resources in the second Node B when the second Node B is full of the assignment requested resource, transmit a message comprising resource information of the assignable resources to the first RNC if assignable resources are searched, and perform a handover using the resource information. - View Dependent Claims (16, 17, 18)
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Specification