System and method for dynamic data management in a wireless network

• US 8,422,463 B2
• Filed: 12/29/2010
• Issued: 04/16/2013
• Est. Priority Date: 12/29/2010
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Pekarske, Matthew Richard, Friedman, Bruce Arnold, Grubis, Matthew George
• Primary Examiner(s): Rutkowski, Jeffrey M
• Assistant Examiner(s): Bokhari, Syed M
• Application Number:
  US12/980,564
• Publication Number:
  US 20120172672A1
• Time in Patent Office: 839 Days
• Field of Search: 370/230, 370/235, 370/395.4, 370/252, 370/284, 370332-333, 370/395.42, 370/444, 370/455, 709/217, 375/219, 705/2
• US Class Current: 370/333
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0014 by adapting the source coding
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

A node is configured for transmitting a data packet over a wireless network. The node includes a controller configured to provide individualized control of a payload in the data packet. The controller is further configured to receive data to be transmitted over the wireless network, to determine a signal quality indicator for the wireless network, and to adjust the amount of the data included in the payload based on the signal quality indicator.

Claims

1. A node configured for transmitting a data packet over a wireless network to an access point according to a differentiated services control parameter, the node comprising:

a controller configured to provide individualized control of a payload in the data packet and the differentiated services control parameter setting corresponding to the node, the controller further configured to

receive data to be transmitted over the wireless network;

determine a signal quality indicator for the wireless network;

adjust the amount of the data included in the payload based on the signal quality indicator; and

determining a classification for the data, and to perform a weighted sum calculation based on the classification in order to assign the priority level to the data.

2. The node of claim 1, wherein the signal quality indicator is based on one of a received signal strength indicator value, a noise floor value, a signal-to-noise ratio value, a packet retransmission rate, and a missed beacon rate.

3. The node of claim 1, wherein the controller is configured to adjust the amount of data included in the payload by removing a subset of data from the received data.

4. The node of claim 3, wherein the node is a patient monitoring device, and wherein the received data includes physiologic data acquired by the patient monitoring device.

5. The node of claim 4, wherein the subset of data includes one of alarm data, waveform data, and vital sign data.

6. The node of claim 1, wherein the controller is configured to adjust the amount of data included in the payload by reducing the resolution of the received data.

7. The node of claim 1, wherein the node is configured for wireless communication with the access point according to IEEE 802.11e protocol.

8. A network comprising:

an access point; and

nodes configured for wirelessly transmitting data packets over the network via the access point according to a differentiated services control parameter;

wherein each of the nodes includes a controller configured to provide individualized control of a payload in each individual data packet and the differentiated services control parameter setting corresponding to the node, the controller further configured to

receive data to be transmitted over the wireless network;

determine a signal quality indicator for the wireless network; and

adjust the amount of the data included in the payload based on the signal quality indicator and

determine a classification for the data. and to perform a weighted sum calculation based on the classification in order to assign the priority level to the data.

9. The network of claim 8, wherein the signal quality indicator is based on one of a received signal strength indicator value, a noise floor value, a signal-to-noise ratio value, a packet retransmission rate, and a missed beacon rate.

10. The network of claim 8, wherein the controller is configured to adjust the amount of data included in the payload by removing a subset of data from the received data.

11. The network of claim 10, wherein each of the nodes is a patient monitoring device, and wherein the received data includes physiologic data acquired by the patient monitoring device.

12. The network of claim 11, wherein the subset of data includes one of alarm data, waveform data, and vital sign data.

13. The network of claim 8, wherein the controller is configured to adjust the amount of data included in the payload by reducing the resolution of the received data.

14. The network of claim 8, wherein the node is configured for wireless communication with the access point according to IEEE 802.11e protocol.

15. A method comprising:

receiving data to be transmitted over a wireless network, wherein the data is acquired by a node configured for wireless transmission of a data packet over the network via an access point according to a differentiated services control parameter, the node including a controller configured to provide individualized control of a payload in the data packet;

determining a signal quality indicator for the wireless network;

adjusting the amount of the data included in the payload based on the signal quality indicator and

determining a classification for the data by comparing the data to a threshold value; and

performing a weighted sum calculation based on the classification in order to assign the priority level to the data.

16. The method of claim 15, wherein the determining the signal quality indicator includes determining the indicator based on one of a received signal strength indicator value, a noise floor value, a signal-to-noise ratio value, a packet retransmission rate, and a missed beacon rate.

17. The method of claim 15, wherein adjusting the amount of data included in the payload includes removing a subset of data from the received data.

18. The method of claim 17, wherein the node is a patient monitoring device, wherein receiving the data includes receiving physiologic data acquired by the patient monitoring device, and wherein the subset of data includes one of alarm data, waveform data, and vital sign data.

19. The method of claim 17, wherein the controller is configured to adjust the amount of data included in the payload by reducing the resolution of the received data.

20. The method of claim 15, wherein the node is configured for wireless communication with the access point according to IEEE 802.11e protocol.