Method for performing an authentication of entities during establishment of wireless call connection

• US 8,543,089 B2
• Filed: 04/30/2008
• Issued: 09/24/2013
• Est. Priority Date: 04/30/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung-Duck, Lee, Young-Dae, Park, Sung-Jun, Yi, Seung-June
• Primary Examiner(s): Chang, Kent
• Assistant Examiner(s): AU, SCOTT D
• Application Number:
  US12/596,660
• Publication Number:
  US 20100144313A1
• Time in Patent Office: 1,973 Days
• Field of Search: 455/410, 370/255
• US Class Current: 455/410
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 12/037 of the control plane, e.g. signalling traffic
• CPC Class Codes: H04W 12/106 Packet or message integrity
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 92/10 between terminal device and access point, i.e. wireless air interface

Abstract

Disclosed is the method for establishing a connection between a base station and a terminal so as to transmit and receive data in the E-UMTS (Evolved Universal Mobile Telecommunications System) or LTE (Long-Term Evolution) system, and more particularly, to a method for determining, by each entity, whether to establish a connection by comparing an authentication input value transmitted from a counterpart entity with an authentication input range.

Claims

1. A method of performing a security setup process in a mobile communications system, the method comprising:

determining, by a terminal, a candidate set for a security setup parameter,

wherein the candidate set is determined by a security setup reference value and a security setting window size value or is determined by the security setup reference value, the security setting window size value and an offset value;

receiving a parameter related to a security setup; and

determining whether or not the received parameter is matched with at least one of the determined candidate set.

2. The method of claim 1, further comprising:

terminating at least an RRC (Radio Resource Control) connection, a NAS (non-access stratum) connection or a call connection between the terminal and a network, if the received parameter is not matched with the at least one of the determined candidate set.

3. The method of claim 1, wherein the candidate set is determined by adding the security setup reference value and the security setting window size value.

4. The method of claim 3, wherein the security setup reference value is a HFN (hyper frame number).

5. The method of claim 4, wherein the security setup reference value is the highest HFN among a plurality of HFN used in a radio bearer that is applied to the security setup process.

6. The method of claim 3, wherein the security setting window size value is received from a network during a call setup.

7. The method of claim 3, wherein the security setting window size value is received from a network through system information (SI).

8. A mobile terminal for performing a security setup process in a mobile communications system, the mobile terminal comprising:

a radio protocol entity adapted to determine a candidate set for a security setup parameter, to receive a parameter related to a security setup, and to determine whether or not the received parameter is matched with at least one of the determined candidate set,

wherein the candidate set is determined by a security setup reference value and a security setting window size value or is determined by the security setup reference value, the security setting window size value and an offset value.