METHOD AND APPARATUS FOR UPDATING AN AUTHORIZATION KEY IN A COMMUNICATION SYSTEM
First Claim
1. A method for operating a mobile station in an idle mode to update a Pairwise Master Key (PMK)/Authorization Key (AK) in a wireless communication system, the method comprising:
- transmitting a first location update request to a base station, the first location update request including a request for updating the PMK/AK;
receiving a response to the first location update request from the base station, the response to the first location update request including a NONCE_BS, wherein the NONCE_BS is a random number associated with the base station and used for updating a PMK;
generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the PMK;
generating the PMK/AK using the NONCE_BS and the NONCE_MS;
transmitting a second location update request to the base station, the second location update request including the NONCE_BS and the NONCE_MS;
receiving a response to the second location update request from the base station, the response to the second location update request including the NONCE_BS and the NONCE_MS; and
confirming the PMK/AK based on the NONCE_BS and the NONCE_MS.
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Accused Products
Abstract
Provided is an apparatus and method for updating an Authorization Key (AK) of a mobile station in an idle mode in a wireless communication system. A method for operating a mobile station in an idle mode to update an AK in a wireless communication system includes transmitting a first location update request to a base station, the first location update request including a request for updating an AK, receiving a response to the first location update request from the base station, the response to the first location update request including a NONCE_BS, wherein the NONCE_BS is a random number associated with the base station and used for updating the AK, generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the AK, generating the AK using the NONCE_BS and the NONCE_MS, transmitting a second location update request to the base station, the second location update request including the NONCE_BS and the NONCE_MS, receiving a response to the second location update request from the base station, the response to the second location update request including the NONCE_BS and the NONCE_MS, and confirming the AK based on the NONCE_BS and the NONCE_MS.
21 Citations
25 Claims
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1. A method for operating a mobile station in an idle mode to update a Pairwise Master Key (PMK)/Authorization Key (AK) in a wireless communication system, the method comprising:
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transmitting a first location update request to a base station, the first location update request including a request for updating the PMK/AK; receiving a response to the first location update request from the base station, the response to the first location update request including a NONCE_BS, wherein the NONCE_BS is a random number associated with the base station and used for updating a PMK; generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the PMK; generating the PMK/AK using the NONCE_BS and the NONCE_MS; transmitting a second location update request to the base station, the second location update request including the NONCE_BS and the NONCE_MS; receiving a response to the second location update request from the base station, the response to the second location update request including the NONCE_BS and the NONCE_MS; and confirming the PMK/AK based on the NONCE_BS and the NONCE_MS. - View Dependent Claims (2, 3)
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4. A method for operating a base station to update a Pairwise Master Key (PMK)/Authorization Key (AK) of a mobile station in an idle mode in a wireless communication system, the method comprising:
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receiving a first location update request from a mobile station, the first location update request including a request for updating the PMK/AK; generating a NONCE_BS, wherein the NONCE_BS is a random number used for updating the PMK; transmitting a response to the first location update request, the response to the first location update request including the NONCE_BS; receiving a second location update request from the mobile station, the second location update request including the NONCE_BS and a NONCE_MS, wherein the NONCE_MS is a random number associated with the mobile station and used for updating the PMK; transmitting the NONCE_BS and the NONCE_MS to a Paging Controller (PC)/authorization station; receiving an AK from the PC/authorization station; and transmitting a response to the second location update request, the response to the second location update request including the NONCE_BS and the NONCE_MS. - View Dependent Claims (5, 6, 7)
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8. A method for operating a mobile station in an idle mode to update a Pairwise Master Key (PMK)/Authorization Key (AK) in a wireless communication system, the method comprising:
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acquiring a NONCE_BS, wherein the NONCE_BS is a random number associated with a base station and used for updating the PMK; generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the PMK; generating the PMK/AK using the NONCE_BS and the NONCE_MS; transmitting a location update request to the base station, the location update request including the NONCE_BS and the NONCE_MS; receiving a response to the location update request from the base station, the response to the location update request including the NONCE_BS and the NONCE_MS; and confirming the PMK/AK based on the NONCE_BS and the NONCE_MS. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for operating a base station to update a Pairwise Master Key (PMK)/Authorization Key (AK) of a mobile station in an idle mode in a wireless communication system, the method comprising:
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receiving a location update request from the mobile station, the location update request including a NONCE_BS and a NONCE_MS, wherein the NONCE_BS is a random number associated with the base station and used for updating the PMK and the NONCE_MS is a random number generated by the mobile station and used for updating the PMK; transmitting the NONCE_BS and the NONCE_MS to a Paging Controller (PC)/authorization station; receiving an AK from the PC/authorization station; and transmitting a response to the location update request, the response to the location update request including the NONCE_BS and the NONCE_MS. - View Dependent Claims (15, 16)
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17. A method for operating a mobile station to update a Pairwise Master Key (PMK)/Authorization Key (AK) during zone switching in a wireless communication system, the method comprising:
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receiving a message indicating that a zone switching is to be performed from a first base station, the message indicating that a zone switching is to be performed including a NONCE_BS, wherein the NONCE_BS is a random number associated with a second base station and used for updating the PMK; generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the PMK; generating the PMK/AK using the NONCE_BS and the NONCE_MS; transmitting a message for the zone switching to the second base station, the message for the zone switching including the NONCE_BS and the NONCE_MS; receiving a response to the message for the zone switching from the second base station, the response to the message for the zone switching including the NONCE_BS and the NONCE_MS; and confirming the AK based on the NONCE_BS and the NONCE_MS. - View Dependent Claims (18, 19, 20, 21)
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22. A method for operating a base station to update a Pairwise Master Key (PMK)/Authorization Key (AK) during zone switching in a wireless communication system, the method comprising:
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generating the NONCE_BS which is a random number associated with the second base station and used for updating the PMK, transmitting a message indicating that a zone switching is to be performed in the first base station, the message indicating that a zone switching is to be performed including a NONCE_BS, receiving a message for zone switching request containing NONCE_MS and NONCE_BS from the mobile station, transmitting the NONCE_BS and the NONCE_MS to the authorization station, receiving an AK from the authorization station, and transmitting a response to the zone switching request in the second base station, the response to the zone switching request including the NONCE_BS and the NONCE_MS. - View Dependent Claims (23, 24, 25)
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Specification