Sensor network information collection via mobile gateway
There is provided a sensor network information collection mechanism in which, after a UE has decided to become part of an information collecting operation for collecting information from a local sensor network, a signaling transmitted from a managing node of a local sensor network is received and processed. A communication network control element is informed about the willingness to become an information collector by sending a report message comprising measurement results derived from the signaling received from the managing node of the local sensor network. When receiving a gateway allocation message indicating that the UE is determined to be a gateway element to the local sensor network, the information collecting operation is started wherein sensor nodes of the local sensor network are woke up, and a traffic flow direction in the local sensor network is set in accordance with the managing node identity to which the UE is accessed.
1. A method, comprising:
transmitting, from a communication network sink, a message to at least one mobile equipment requesting information regarding availability as a gateway to a sensor network;
receiving, at the sink from a first one of the at least one mobile equipment, information relating to an availability of the first mobile equipment as a gateway to the sensor network via an identified first cluster head node;
transmitting, from the sink, a notice of gateway status to the first mobile equipment; and
receiving, at the sink from the first mobile equipment, sensor information from the sensor network routed through the first cluster head node.
2. The method of claim 1 , further comprising:
receiving, at the sink from a second one of the at least one mobile equipment, information relating to an availability of the second mobile equipment as a gateway to the sensor network via an identified second cluster head node;
transmitting from the sink a notice of gateway status to the second mobile equipment; and
receiving, at the sink from the second mobile equipment, sensor information from the sensor network routed through the second cluster head node.
3. The method of claim 2 , wherein the sensor information routed through the second cluster head node is different than the sensor information routed through the first cluster head node.
4. The method of claim 1 , further comprising:
receiving, at the sink from a second one of the at least one mobile equipment, information relating to an availability of the second mobile equipment as a gateway to the sensor network via an identified second cluster head node; and
determining that the second mobile equipment is not a suitable gateway.
5. The method of claim 1 , wherein the information received at the sink relating to the availability of the first mobile equipment includes at least one of synchronization information, signal strength information, properties of the first cluster head node, capabilities of the first cluster head node, and energy available for transmission.
6. The method of claim 5 , further comprising:
determining, from the information received at the sink relating to the availability of the first mobile equipment, a suitability of the first mobile equipment as a gateway; and
assigning a gateway status to the first mobile equipment.
7. The method of claim 5 , further comprising:
determining a suitability of the first mobile equipment as a gateway based on at least one of: signaling quality between the first mobile equipment and the first cluster head node; the capability of the mobile equipment; the connection between the sink and the mobile equipment; and the capability of the first cluster head node.
8. A mobile equipment, comprising:
a communication interface;
a memory including processor-readable instructions; and
a processor configured to execute the processor-readable instructions from the memory, the instructions including instructions to:
communicate with a communication network control element via the communication interface;
receive from the control element a request to provide availability as a gateway to a sensor network;
detect beacon signals emitted from at least one cluster head node of a sensor network;
determine information regarding availability as a gateway for a first one of the at least one cluster head node based at least in part on the detected beacon signals;
transmit the information regarding availability to the control element;
receive from the control element a status indicator indicating an allocation of status as a gateway for the first one of the at least one cluster head node; and
inform the sensor network of an updated network topology including identification of the first one of the at least one cluster head node.
9. The mobile equipment of claim 8 , the instructions further including instructions to
collect sensor data information from the first one of the at least one cluster head node; and
transmit the sensor data information to the control element.
10. The mobile equipment of claim 8 , wherein the at least one cluster head node is a plurality of cluster head nodes, and wherein the instructions to determine information regarding availability as a gateway include instructions to determine from the beacon signals the first one of the plurality of cluster head nodes based on measurements of received signal strength of the plurality of cluster head nodes.
11. The mobile equipment of claim 8 , wherein the at least one cluster head node is a plurality of cluster head nodes, and wherein the instructions to determine information regarding availability as a gateway include instructions to determine from the beacon signals the first one of the plurality of cluster head nodes based on properties or capabilities of the plurality of cluster head nodes.
12. The mobile equipment of claim 8 , wherein the at least one cluster head node is a plurality of cluster head nodes, and wherein the instructions to determine information regarding availability as a gateway include instructions to determine from the beacon signals the first one of the plurality of cluster head nodes based on remaining energy of each of the plurality of cluster head nodes.
13. The mobile equipment of claim 8 , wherein the instructions to transmit information regarding availability as a gateway include instructions to transmit measurements of received signal strength and remaining energy of the first one of the plurality of cluster head nodes, and to transmit measurements of remaining energy of the mobile equipment.
14. The mobile equipment of claim 8 , wherein the instructions to transmit information regarding availability as a gateway include instructions to transmit properties and capabilities of the first one of the plurality of cluster head nodes.