Coexistence of Wireless Sensor Networks with Other Wireless Networks

Patent metadata

Field	Value
Publication number	US-2018317245-A1
Application number	US-201816024039-A
Country	US
Kind code	A1
Filing date	Jun 29, 2018
Priority date	Mar 30, 2012
Publication date	Nov 1, 2018
Grant date	—

Abstract

A method for communicating in a wireless sensor network (WSN) is described. Using control logic, a first wireless transceiver is caused to transmit a wireless packet to a node in a wireless sensor network. The control logic bases its causing on a transmission coinciding with a break in transmission for a second wireless network, such that the transmission from the first wireless transceiver does not coincide with transmissions made on the second wireless network. Time synchronized channel hopping (TSCH) slot frames for wireless packet transmission in the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing TSCH. Wake up sequence transmissions for the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing coordinated sampled listening (CSL).

First claim

What is claimed is:

1 . A method for communicating, comprising:
transmitting a clear-to-send 2 self (CTS2S) frame, by a wireless transceiver, based on a control logic making a determination to transmit a wireless packet to a sensor node in a wireless sensor network (WSN); and transmitting a contention free end (CF-End) frame, by the wireless transceiver, based on the wireless packet being transmitted to the sensor node in the WSN and to not transmitting a CF-End frame based on the wireless packet being transmitted to a coordinator node in the WSN.

2 . The method of claim 1 further comprising transmitting to and receiving from nodes in the second wireless network using the wireless transceiver.

3 . The method of claim 1 , wherein the second wireless network is wireless local area network (WLAN).

4 . The method of claim 1 , wherein the wireless transceiver is configured to transmit the wireless packet utilizing time synchronized channel hopping (TSCH).

5 . The method of claim 1 , wherein the wireless transceiver is configured to transmit the wireless packet utilizing coordinated sampled listening (CSL).

6 . The method of claim 1 , wherein the wireless transceiver is one of a mobile phone, personal computer, laptop computer, tablet computer, media player, headset and watch.

7 . The method of claim 1 , wherein a coordinator includes the control logic.

8 . The method of claim 7 , further comprising:
placing the coordinator in a power save mode; and causing the wireless transceiver to transmit a signal to an access point in the WLAN indicating that the coordinator is in an awake state.

9 . A device comprising control logic and a wireless transceiver configured to:
transmit a clear-to-send 2 self (CTS2S) frame based on the control logic making a determination to transmit a wireless packet to a sensor node in a wireless sensor network (WSN); and transmit a contention free end (CF-End) frame based on the wireless packet being transmitted to the sensor node in the WSN and to not transmitting a CF-End frame based on the wireless packet being transmitted to a coordinator node in the WSN.

10 . The device of claim 9 wherein the wireless transceiver is further configured to transmit to and receiving from nodes in the second wireless network using the wireless transceiver.

11 . The device of claim 9 , wherein the second wireless network is wireless local area network (WLAN).

12 . The device of claim 9 , wherein the wireless transceiver is configured to transmit the wireless packet utilizing time synchronized channel hopping (TSCH).

13 . The device of claim 9 , wherein the wireless transceiver is configured to transmit the wireless packet utilizing coordinated sampled listening (CSL).

14 . The device of claim 9 , wherein the wireless transceiver is one of a mobile phone, personal computer, laptop computer, tablet computer, media player, headset and watch.

15 . The device of claim 9 , wherein a coordinator includes the control logic.

16 . The device of claim 15 , further comprising:
placing the coordinator in a power save mode; and causing the wireless transceiver to transmit a signal to an access point in the WLAN indicating that the coordinator is in an awake state.

Assignees

• Texas Instruments Inc

Inventors

• Xhafa Ariton E
• Choi Soon-Hyeok
• Hosur Srinath
• Sun Yanjun

Classifications

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W72/1215 Primary

  for collaboration of different radio technologies · CPC title

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W84/18

  Self-organising networks, e.g. ad-hoc networks or sensor networks · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title