Cr0ss-resource subscription for m2m service layer

An apparatus for cross-resource subscription, the apparatus comprising:

• a processor;
• and
• a memory coupled with the processor, the memory comprising executable instructions that when executed by the processor cause the processor to effectuate operations comprising:
• receiving a message for a cross-resource subscription,
• wherein the message is indicative of a request, by a remote device, for a subscription,
• wherein the subscription is for the remote device to be notified of a change of a plurality of target resources that meet a criteria within a window of time;
• based on the message, determining that the remote device has privilege to create the cross-resource subscription;
• and
• based on having the privilege to create the cross-resource subscription, generating a local subscription resource for the cross-resource subscription.

A method for cross-resource subscription, the method comprising:

• receiving, by a machine-to-machine entity, a message for a cross-resource subscription,
• wherein the message is indicative of a request, by a remote device, for a subscription,
• wherein the subscription is for the remote device to be notified of a change of a plurality of target resources that meet a criteria within a window of time;
• based on the message, determining, by the machine-to-machine entity, that the remote device has privilege to create the cross-resource subscription;
• and
• based on having the privilege to create the cross-resource subscription, generating, by the machine-to-machine entity, a local subscription resource for the cross-resource subscription.