Apparatus, and an associated method, by which to provide temporary identifiers to a mobile node involved in a communication handover
First Claim
1. In a wireless communication system having a mobile node operable to communicate by way of a network infrastructure with another communication node, the mobile node movable between a first position and at least a second position, when positioned at the first position, the mobile node is operable to communicate by way of a first subnetwork defined by a first radio access point of the network infrastructure, and when positioned at the at least the second position, communication handover is effectuated such that the mobile node is operable to communicate by way of a second subnetwork defined by a second radio access point, an improvement of apparatus for providing a temporary identifier to the mobile node to identify the mobile node, thereby to permit routing of data packets thereto, said apparatus comprising:
- a detector having at least a portion embodied at the first radio access point and coupled to detect indications of a decision to handover communications of the mobile node between the first and second subnetworks;
a radio-access-point cache positioned at the first radio access point, said radio-access-point cache for cacheing temporary identifiers thereat; and
an assignor having at least a portion embodied at the first radio-access-point and coupled to said detector, said assignor for assigning the a selected temporary identifier from the radio-access-point cache to the mobile node subsequent to detection by said detector of when the handover is to be effectuated and prior to effectuation of the handover.
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Accused Products
Abstract
Apparatus, and an associated method, for a mobile communication system in which handovers of communications are effectuated between access points of the communication system as a mobile node travels there through. A manner is provided by which to perform handover evaluation functions more efficiently by performing at least some of the handover evaluations at the access point to which a mobile node is attached. And, a manner is provided by which to provide care-of-addresses formed of temporary identifiers to temporarily identify a mobile node to permit the routing of packet data thereto during a communication session.
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Citations
19 Claims
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1. In a wireless communication system having a mobile node operable to communicate by way of a network infrastructure with another communication node, the mobile node movable between a first position and at least a second position, when positioned at the first position, the mobile node is operable to communicate by way of a first subnetwork defined by a first radio access point of the network infrastructure, and when positioned at the at least the second position, communication handover is effectuated such that the mobile node is operable to communicate by way of a second subnetwork defined by a second radio access point, an improvement of apparatus for providing a temporary identifier to the mobile node to identify the mobile node, thereby to permit routing of data packets thereto, said apparatus comprising:
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a detector having at least a portion embodied at the first radio access point and coupled to detect indications of a decision to handover communications of the mobile node between the first and second subnetworks;
a radio-access-point cache positioned at the first radio access point, said radio-access-point cache for cacheing temporary identifiers thereat; and
an assignor having at least a portion embodied at the first radio-access-point and coupled to said detector, said assignor for assigning the a selected temporary identifier from the radio-access-point cache to the mobile node subsequent to detection by said detector of when the handover is to be effectuated and prior to effectuation of the handover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. In a method for communicating in a wireless communication system having a mobile node operable to communicate by way of a network infrastructure with another communication ode, the mobile node movable between a first positioned and at least a second position, when positioned at the first position, the mobile node is operable to communicate by way of a first subnetwork defined by a first radio-access-point of the network infrastructure, and when positioned at the at least the second position, communication handover is effectuated such that the mobile node is operable to communicate by way of a second subnetwork defined by a second radio-access-point of the network infrastructure, an improvement of a method for providing a selected temporary identifier to the mobile node to identify the mobile node, thereby to permit routing of data packets thereto, said method comprising:
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cacheing, at the first radio-access-point, temporary identifiers usable to identify the mobile node;
detecting at the first radio access point when a decision to handover communications of the mobile node between the first and second subnetworks is made; and
assigning the selected temporary identifier, selected from the temporary identifiers cached during said operation of cacheing, to the mobile node subsequent to detection by said detector of when the handover is to be effectuated and prior to effectuation of the handover. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
requesting, by the mobile node, the handover of the communications.
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14. The method of claim 13 wherein the selected temporary identifier assigned during said operation of assigning is retrieved from a cache at which temporary identifiers are cached during said operation of cacheing.
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15. The method of claim 14 wherein the network infrastructure comprises a radio access network and a core network and wherein said operation of assigning is performed at the first radio-access-point of the radio access network.
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16. The method of claim 12 wherein the first subnetwork forms an active subnetwork and wherein the decision, detected during said operation of detecting, to handover communications is made at the active subnetwork.
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17. The method of claim 16 wherein the decision, detected during said operation of detecting, is further responsive to indications of communication conditions at the target subnetwork.
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18. The method of claim 17 further comprising the additional operation of providing the indications of the communication conditions at the target subnetworks to the active network.
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19. The method of claim 18, wherein the active subnetwork and the target subnetwork are intercoupled and wherein the indications of the communication conditions at the target subnetwork provided to the active subnetwork are provided directly thereto.
Specification