| 摘要 |
In a Machine-to-Machine (M2M) network, efficient subscription of a M2M network application to a potentially very large number of device applications executing on remote devices is facilitated by the use of a shared 'link-subscription identifier.' Each related device application (e.g., utility meter reading applications) includes a shared link-subscription identifier in its registration to a M2M network gateway or a M2M services capability (SC). The gateways maintain a binding between link-subscription identifiers in the device applications associated with them. To subscribe to all related device applications, a network application includes the link-description identifier in a subscription request to the M2M SC. The M2M SC, in turn, includes the link-subscription identifier in subscription requests it forwards to gateways and directly-connected remote devices. If the link-subscription identifier is one that is maintained locally by a gateway, the gateway forwards the subscription request to all remote devices executing associated device applications. |
