Method and apparatus for transferring large amount of data in machine to machine system
Embodiments of the present disclosure are directed to forwarding a large amount of data in a machine-to-machine (M2M) system, and a method for operating a first device may include: transmitting, to a second device, a request message for bulk data transfer; and receiving, from the second device, an acknowledgment message for notifying completion of the bulk data transfer, wherein the request message may include at least one of information for identifying data to be included in bulk data, information on a target common service entity (CSE) in a target platform that receives the bulk data, information for indicating processing of source data after the bulk data transfer, and information for accessing the target CSE.
1. A method for operating a first device in a machine-to-machine (M2M) system, the method comprising:
transmitting, to a second device, a request message requesting to transfer bulk data related to a resource to a third device; and
receiving, from the second device, an acknowledgment message for notifying completion of the bulk data transfer to the third device;
wherein the request message includes information for identifying source data to be transmitted as bulk data among data stored in the second device prior to transmission of the request message, and information on a target common service entity (CSE) that is the third device;
wherein the information identifying source data comprises filter criteria that specify the source data.
2. The method of claim 1 , wherein the bulk data transfer is requested in response to one of a data purchase of another device, a change of a serving platform for the first device, and permission for the first device to use a resource in a platform to which the second device belongs.
3. The method of claim 1 , wherein the request message further includes at least one of information for indicating deletion or maintenance of source data in the second device after the bulk data transfer, and information for accessing the target CSE.
4. A method for operating a second device in a machine-to-machine (M2M) system, the method comprising:
receiving, from a first device, a first request message requesting to transmit bulk data related to a resource to a thrid device;
transmitting, to the third device, a second request message for requesting to allow the bulk data transfer to the third device;
receiving, from the third device, a response message for indicating that the bulk data transfer is allowed, which corresponds to the second request message;
transmitting, to the third device, bulk data; and
receiving an acknowledgment message for notifying completion of the bulk data transfer to third device,
wherein the first and second request messages include information for identifying source data to be transmitted as the bulk data among data stored in the second device prior to transmission of the first and second request messages, and information on a target common service entity (CSE) that is the third device; and
wherein the information identifying source data comprises filter criteria that specify the source data.
5. The method of claim 4 , wherein the first request message further includes at least one of information for indicating deletion or maintenance of source data in the second device after the bulk data are transferred, and information for accessing the third device.
6. The method of claim 4 , wherein the second request message includes at least one of information for accessing the third device and information on the bulk data.
7. The method of claim 4 , further comprising:
collecting data included in the bulk data; and
compressing the collected data.
8. The method of claim 3 , further comprising:
determining a compression scheme for compressing the bulk data based on signaling with the third device.
9. The method of claim 4 , further comprising:
after transmitting the bulk data, deleting data in the bulk data from a platform to which the second device belongs.
10. A method for operating a third device in a machine-to-machine (M2M) system, the method comprising:
receiving, from a second device, a request message for requesting to allow a bulk data transfer requested by a first device;
transmitting, to the second device, a response message for indicating that the bulk data transfer is allowed, which corresponds to the request message; and
receiving bulk data from the second device and storing the bulk data,
wherein the response message includes information indicating a compression scheme for the bulk data.
11. The method of claim 10 , wherein the request message includes at least one of information for accessing the third device and information on the bulk data.
12. The method of claim 11 , wherein the information for accessing the third device includes credential information or license information for accessing the third device.
13. The method of claim 10 , further comprising:
determining whether or not allow the bulk data transfer based on the request message.
14. The method of claim 10 ,
wherein the bulk data are received in a compressed state based on the compression scheme.