Priority assignment and transmission of sensor data

• US 7,616,642 B2
• Filed: 01/04/2006
• Issued: 11/10/2009
• Est. Priority Date: 01/04/2006
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Neugebauer, Mario, Hackenbroich, Gregor, Anke, Juergen
• Primary Examiner(s): Ton; Dang T
• Assistant Examiner(s): Kamara; Mohamed
• Application Number:
  US11/325,824
• Publication Number:
  US 20070153802A1
• Time in Patent Office: 1,406 Days
• Field of Search: 370/338, 370/235.1, 370/352, 370/412, 370/395.42, 370/395.62, 370/235, 370/94, 370/328, 340/870.01, 709/226
• US Class Current: 370/395.42
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/2458 Modification of priorities while in transit
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

Prioritized transmission of data from a mobile device, where the mobile device includes the ability to transmit data using more than one transmission medium, includes generating data packets from sensor data. The data packet is then assigned a priority level based on the sensor data and various factors relating to the transmission mediums. The priority level may be assigned based on the transmission availability, bandwidth and cost of using the medium. The data packets, based on the assigned priority level, are then stored in a corresponding priority buffer associated with a transmission device using one of the transmission mediums. When available, the transmission device may then readily transmit the data packet from the priority buffer. Therefore, the data is transferred in a prioritized order based, in part, on the transmission medium and factors relating to the medium, as well as the sensor data being transmitted.

Claims

1. An apparatus for prioritized transmission of data from a mobile device using a plurality of transmission mediums, the apparatus comprising:

a packet generation device operative to receive sensor data and generate a data packet including the sensor data;

a priority assignment device coupled to the packet generation device, operative to receive the data packet and assign the data packet into one of a plurality of priority levels, where the priority levels are based on the sensor data and a transmission availability, bandwidth and cost for each of the transmission mediums;

a plurality of priority buffers, each priority buffer associated with one of the transmission mediums, such that the data packet is written to an assigned priority buffer, which is one of the plurality of priority buffers, for transmission using the transmission medium associated with the assigned priority buffer; and

a plurality of priority buffer processing devices, each priority buffer processing device coupled to and associated with one of the plurality of priority buffers, the priority buffer processing device associated with the assigned priority buffer is operative to monitor a buffering time for the data packet stored in the assigned priority buffer;

wherein the priority buffer processing device associated with the assigned priority buffer is operative to process the data packet to generate reduced data packet and transfer the reduced data to another one of the plurality of priority buffers having a higher priority than the assigned priority buffer, if the buffering time is beyond a predetermined time limit.

2. The apparatus of claim 1 further comprising:

a sensor disposed within the mobile device operative to generate the sensor data.

3. The apparatus of claim 1 further comprising:

a plurality of transmission devices operative to transmit the data packet using an associated transmission medium, each of the transmission devices associated with one of the priority buffers; and

when the mobile device is within a transmission range of the transmission medium associated with the assigned priority buffer, the transmission device associated with the assigned priority buffer is operative to retrieve the data packet from the assigned priority buffer and transmit the data packet using the associated transmission medium.

4. The apparatus of claim 3 wherein the assigned priority buffer includes additional data packets previously stored therein such that the additional data packets are transmitted prior to the transmission of the data packet.

5. The apparatus of claim 1 wherein the priority buffer processing device associated with the assigned priority buffer is operative to delete the data packet from the assigned priority buffer if the buffering time is beyond the predetermined time limit.

6. The apparatus of claim 1 wherein the priority buffer processing device associated with the assigned priority buffer is operative to transfer the data packet to another one of the plurality of priority buffers having the higher priority than the assigned priority buffer, if the buffering time is beyond the predetermined time limit.

7. A method for transmitting sensor data from a mobile device comprising:

receiving sensor data from a sensor in the mobile device;

generating a data packet including the sensor data;

assigning the data packet one of a plurality of priority levels, where the priority levels are based on the sensor data and transmission availability, bandwidth and cost for each of a plurality of transmission mediums;

storing the data packet in an assigned priority buffer based on the priority level, the assigned priority buffer is one of a plurality of priority buffers, each of the plurality of priority buffers is associated with one of the plurality of transmission mediums for transmitting the data packet;

assigning a time stamp to the data packet indicating a time of the data packet generation; and

monitoring a buffering time for the data packet within the assigned priority buffer based on the time stamp;

if the buffering time is beyond a predetermined time limit, processing the data packet to generate reduced data packet and transferring the reduced data to another one of the plurality of priority buffers having a higher priority than the assigned priority buffer.

8. The method of claim 7 further comprising:

when the mobile device is within a transmission range of the transmission medium associated with the assigned priority buffer;

retrieving the data packet from the assigned priority buffer; and

transmitting the data packet using the transmission medium with which the assigned priority buffer is associated.

9. The method of claim 8 wherein the assigned priority buffer includes additional data packets previously stored therein such that the additional data packets are transmitted prior to the transmission of the data packet.

10. The method of claim 7 further comprising:

if the buffering time is beyond the predetermined time limit, deleting the data packet from the assigned priority buffer.

11. The method of claim 7 further comprising:

if the buffering time is beyond the predetermined time limit, transferring the data packet to another one of the plurality of priority buffers having the higher priority than the assigned priority buffer.

12. A mobile device having prioritized transmission of data using a plurality of transmission mediums, the mobile device comprising:

a sensor disposed within the mobile device operative to generate a sensor data;

a packet generation device operative to receive the sensor data and generate a data packet including the sensor data;

a priority assignment device coupled to the packet generation device and operative to receive the data packet and assign the data packet one of a plurality of priority levels, where the priority levels are based on the sensor data and a transmission availability, bandwidth and cost for each of the transmission mediums;

a plurality of priority buffers, each priority buffer associated with one of the transmission mediums, such that the data packet is written to an assigned priority buffer, which is one of the plurality of priority buffers; and

a plurality of priority buffer processing devices, each buffer processing device coupled to and associated with one of the plurality of priority buffers, the priority buffer processing device associated with the assigned priority buffer is operative to monitor a buffering time for the data packet stored in the assigned priority buffer;

wherein the priority buffer processing device associated with the assigned priority buffer is operative to process the data packet to generate reduced data packet and transfer the reduced data to another one of the plurality of priority buffers having a higher priority than the assigned priority buffer, if the buffering time is beyond a predetermined time limit.

13. The mobile device of claim 12 further comprising:

a plurality of transmission devices operative to transmit data using an associated transmission medium, each of the transmission devices associated with one of the priority buffers; and

when the mobile device is within a transmission range of the transmission medium associated with the assigned priority buffer, the transmission device associated with the assigned priority buffer is operative to retrieve the data packet from the assigned priority buffer and transmit the data packet using the associated transmission medium.

14. The mobile device of claim 12 wherein the priority buffer processing device associated with the assigned priority buffer is operative to delete the data packet from the assigned priority buffer if the buffering time is beyond the predetermined time limit.

15. The mobile device of claim 12 wherein the priority buffer processing device associated with the assigned priority buffer is operative to transfer the data packet to another one of the plurality of priority buffers having the higher priority than the assigned priority buffer, if the buffering time is beyond the predetermined time limit.