Method of handling security configuration in wireless communications system and related communication device
AssigneeHTC Corporation
InventorChih-Hsiang Wu
Life of this patent
Estimating the term…
Abstract
A method of handling security configuration for a mobile device using a mapped security context in a wireless communication system includes utilizing the mapped security context to derive ciphering and integrity keys when security configuration, indicating a key update based on a cached security context, is received.
Claims40
A method of handling security configuration for a mobile device using a mapped security context in a wireless communication system, the method comprising:
- utilizing the mapped security context to derive ciphering and integrity keys when security configuration, indicating a key update based on a cached security context, is received.
A method of handling security configuration for a mobile device in a wireless communication system, the method comprising:
- receiving security configuration associated with a key update based on a cashed security context via an inter-system handover;
- and
- determining whether to utilize the cashed security context to derive ciphering and integrity keys according to the security configuration.
A method of handling security configuration for a mobile device in a wireless communication system, the method comprising:
- determining whether to utilize a currently-used security algorithm associated with a security function to derive at least a security key according to a received handover when the received handover command does not include any security algorithm assigning configuration associated with the security function.
A communication device of a wireless communication system for accurately handling security configuration, the communication device comprising:
- a computer readable recording medium for storing mapped security context, cached security context, and program code corresponding to a process;
- and
- a processor coupled to the computer readable recording medium, for processing the program code to execute the process;
- wherein the process comprises:
- utilizing the mapped security context to derive ciphering and integrity keys when the mapped security context is in use and security configuration, indicating a key update based on the cached security context, is received.
A communication device of a wireless communication system for accurately handling security configuration, the communication device comprising:
- a computer readable recording medium for storing cached security context and program code corresponding to a process;
- and
- a processor coupled to the computer readable recording medium, for processing the program code to execute the process;
- wherein the process comprises:
- receiving security configuration associated with a key update based on the cashed security context via an inter-system handover;
- and
- determining whether to utilize the cashed security context to derive ciphering and integrity keys according to the security configuration.
A communication device of a wireless communication system for accurately handling security configuration, the communication device comprising:
- a computer readable recording medium for storing program code corresponding to a process;
- and
- a processor coupled to the computer readable recording medium, for processing the program code to execute the process;
- wherein the process comprises:
- determining whether to utilize a currently-used security algorithm associated with a security function to derive at least a security key according to a received handover when the received handover command does not include any security algorithm assigning configuration associated with the security function.
Dependencies are inferred from the claim text.