METHOD AND APPARATUS FOR PROVIDING APPLICATION SERVICE BETWEEN A FIRST PROTOCOL AND A SECOND PROTOCOL
First Claim
1. A method for providing application service for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol, the method comprising:
- receiving a first protocol over the air rekeying (OTAR) message from the SU, wherein the first protocol OTAR message includes at least a key management message (KMM) and a first protocol header of the SU;
determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received first protocol OTAR message;
creating a second protocol preamble based on at least one of the first protocol header and configuration information of the SU;
creating a second protocol OTAR message utilizing information included in the received first protocol OTAR message, wherein the second protocol OTAR message includes the received KMM;
encapsulating the second protocol OTAR message with the created second protocol preamble; and
sending the encapsulated second protocol OTAR message to a key management facility (KMF) unit operating at the second protocol.
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Accused Products
Abstract
Application service is provided for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol. The method includes receiving a CAI OTAR message from the SU. The CAI OTAR message includes at least a key management message (KMM) and a CAI header of the SU. The method then includes determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received CAI OTAR message. The method further includes creating a key management message (KMM) preamble, associated with the second protocol, based on at least one of the CAI header and configuration information of the SU, and creating a data link independent (DLI) OTAR message associated with the second protocol. The DLI OTAR message includes the received KMM. The method finally includes encapsulating the DLI OTAR message with the created KMM preamble, and sending the encapsulated DLI OTAR message to a key management facility (KMF) unit operating at a second protocol.
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Citations
26 Claims
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1. A method for providing application service for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol, the method comprising:
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receiving a first protocol over the air rekeying (OTAR) message from the SU, wherein the first protocol OTAR message includes at least a key management message (KMM) and a first protocol header of the SU; determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received first protocol OTAR message; creating a second protocol preamble based on at least one of the first protocol header and configuration information of the SU; creating a second protocol OTAR message utilizing information included in the received first protocol OTAR message, wherein the second protocol OTAR message includes the received KMM; encapsulating the second protocol OTAR message with the created second protocol preamble; and sending the encapsulated second protocol OTAR message to a key management facility (KMF) unit operating at the second protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for providing application service for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol, the method comprising:
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receiving a first protocol message from the SU, wherein the first protocol message includes a first protocol address of the SU; determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received first protocol message; creating a second protocol preamble utilizing pre-configuration information of the SU; creating a second protocol over the air rekeying (OTAR) message based on the received first protocol message, wherein the second protocol OTAR message includes the received first protocol address of the SU; encapsulating the second protocol OTAR message with the created second protocol preamble; and sending the encapsulated second protocol OTAR message to a key management facility (KMF) unit operating at the second protocol. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A communication system for providing application service for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol, the communication system comprising:
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a data gateway (DG) for receiving a first protocol over the air rekeying (OTAR) message from the SU, wherein the first protocol OTAR message includes at least a key management message (KMM) and a first protocol header of the SU; the DG for determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received first protocol OTAR message; the DG for creating a second protocol preamble based on at least one of the first protocol header and configuration information of the SU; the DG for creating a second protocol OTAR message utilizing information included in the received first protocol OTAR message, wherein the second protocol OTAR message includes the received KMM; the DG for encapsulating the second protocol OTAR message with the created second protocol preamble; and the DG for sending the encapsulated second protocol OTAR message to a key management facility (KMF) unit operating at the second protocol. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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26. A communication system, comprising:
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a subscriber unit (SU) employing a first protocol and having an internet protocol (IP) address associated therewith upon registration, the SU transmitting a common air interface (CAI) over the air rekeying (OTAR) message having a CAI header of the SU; an association of public safety communications officials (APCO) system providing interface between the SU and a KMF unit, the APCO system comprising; a base station receiving the CAI OTAR message from the SU; and a data gateway (DG) creating a key management facility (KMF) header, associated with the second protocol, based on the received CAI header, for the SU when the first protocol is different from the second protocol, the DG creating a data link independent (DLI) OTAR message utilizing information included in the received CAI OTAR message, the DG encapsulating the DLI OTAR message with the created KMF header, the DG sending the encapsulated DLI OTAR message to the key management facility (KMF) unit operating at the second protocol; and the key management facility (KMF) unit operating over the second protocol to provide application service to the SU based on the encapsulated DLI OTAR message.
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Specification