Systems and methods for time optimization for silencing wireless devices in coexistence networks

• US 9,820,294 B2
• Filed: 07/30/2015
• Issued: 11/14/2017
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Xhafa, Ariton E., Sun, Yanjun, Vedantham, Ramanuja
• Primary Examiner(s): Faroul, Farah
• Application Number:
  US14/813,175
• Publication Number:
  US 20150334728A1
• Time in Patent Office: 838 Days
• Field of Search: 370336
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

Embodiments provide a communication device. A device comprises at least two dissimilar network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems. In some embodiments, a device is able to transmit a silencing frame during a transmission window within a lower priority technology network interval. A transceiver is able to calculate a transmission window to end by at least a duration of time to complete transmission of the silencing frame prior to the beginning of next immediate string of at least one higher priority network technology subsystem interval, and transmit a silencing frame during a lower priority technology network interval during the transmission window.

Claims

1. A communications device, comprising:

a transceiver comprising at least two dissimilar wireless network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems, the transceiver able to calculate a transmission window to end by at least a duration of time to complete transmission of the silencing frame prior to the beginning of next immediate string of at least one higher priority network technology subsystem interval, and transmit a silencing frame during a lower priority technology network interval during the transmission window.

2. The communications device of claim 1, wherein the transmission window is calculated determining by adding a plurality of transmission times together to determine duration of the transmission window.

3. The communications device of claim 2, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

4. The communications device of claim 1, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

5. The communications device of claim 1, wherein the transmission window is calculated by adding a determined duration of the transmission window to a total duration of a next upcoming string of at least one higher priority interval, and subtracting the sum of durations from end time of the last higher priority interval in the next upcoming string of at least one higher priority interval to calculate a beginning time of the transmission window.

6. A communications device, comprising:

a transceiver comprising at least two dissimilar wireless network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems, the transceiver able to calculate a transmission window, and transmit a silencing frame during a lower priority technology network interval during the transmission window, wherein the silencing frame transmitted during the transmission window silences devices for at least an entire duration of string of at least one higher priority network technology subsystem interval.

7. The communications device of claim 6, wherein the transmission window is calculated by adding a plurality of transmission times together to determine duration of the transmission window.

8. The communications device of claim 6, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

9. The communications device of claim 6, wherein the transmission window is calculated by adding a determined duration of the transmission window to a total duration of a next upcoming string of at least one higher priority interval, and subtracting the sum of durations from end time of the last higher priority interval in the next upcoming string of at least one higher priority interval to calculate a beginning time of the transmission window.

10. The communications device of claim 9, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

11. A communications device, comprising:

a transceiver comprising at least two dissimilar wireless network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems, the transceiver able to calculate a transmission window, and transmit a silencing frame during a lower priority technology network interval during the transmission window, wherein if the silencing frame cannot be transmitted during the transmission window, no silencing frame is sent during the lower priority technology network interval.

12. The communications device of claim 11, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

13. A communications device, comprising:

a transceiver comprising at least two dissimilar wireless network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems, the transceiver able to calculate a transmission window, and transmit a silencing frame during a lower priority technology network interval during the transmission window, wherein if the silencing frame cannot be transmitted during the transmission window, no silencing frame is sent during the lower priority technology network interval.

14. The communications device of claim 13, wherein the transmission window is calculated determining by adding a plurality of transmission times together to determine duration of the transmission window.

15. The communications device of claim 14, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

16. The communications device of claim 13, wherein the silencing frame is transmitted at beginning of the calculated transmission window.

17. The communications device of claim 13, wherein the transmission window is calculated by adding a determined duration of the transmission window to a total duration of a next upcoming string of at least one higher priority interval, and subtracting the sum of durations from end time of the last higher priority interval in the next upcoming string of at least one higher priority interval to calculate a beginning time of the transmission window.

18. The communications device of claim 17, wherein the silencing frame is transmitted at beginning of the calculated transmission window.