Communicating with a machine to machine device
AssigneeVodafone IP Licensing Limited
InventorNick Bone
Life of this patent
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Abstract
The present disclosure provides methods and apparatus for administering an interface between a machine-to-machine, M2M, device and a network application function, NAF, for secure communication between the M2M device and the NAF. In one method, the M2M device comprises security information for enabling secure communication via the interface, and administers the interface by: setting a secure interface lifetime parameter based on a lifetime of at least part of the security information; and transmitting administration data to the NAF, wherein the administration data comprises the secure interface lifetime parameter.
Claims20
A method for a machine-to-machine (M2M) device to administer an interface between the M2M device and a network application function (NAF) for secure communication between the M2M device and the NAF, wherein the M2M device comprises security information as a key for enabling secure communication via the interface, the method comprising the steps of initiating, before expiry of a lifetime of at least part of the security information and on wake up from a sleep cycle:
- setting a secure interface lifetime parameter based on a lifetime of the at least part of the security information;
- transmitting administration data to the NAF, wherein the administration data comprises the secure interface lifetime parameter;
- after determining that a registration of the interface is about to expire, pre-emptively initiating a new bootstrapping process to obtain new security information, the initiating being pre-emptive as a result of obtaining the new security information prior to expiration of the registration;
- and
- using the new security information to either update the registration or, alternatively, to carry out a new registration.
A method for a network application function (NAF) to administer an interface between the NAF and a machine-to-machine (M2M), device, wherein the M2M device comprises security information as a key for enabling secure communication via the interface, the method comprising the steps of:
- receiving, before expiry of a lifetime of at least part of the security information and on wake up from a sleep cycle, administration data from the M2M device, the registration data comprising a secure interface lifetime parameter that has been set based on a lifetime of the at least part of the security information;
- transmitting an administration response to the M2M device;
- after determining that a registration of the interface is about to expire, pre-emptively initiating a new bootstrapping process to obtain new security information, the initiating being pre-emptive as a result of obtaining the new security information prior to expiration of the registration;
- and
- using the new security information to either update the registration or, alternatively, to carry out a new registration.
Dependencies are inferred from the claim text.