Apparatus, system, and method of channel switching

Patent metadata

Field	Value
Publication number	US-2018288698-A1
Application number	US-201715474163-A
Country	US
Kind code	A1
Filing date	Mar 30, 2017
Priority date	Mar 30, 2017
Publication date	Oct 4, 2018
Grant date	—

Abstract

Some demonstrative embodiments include apparatuses, devices, systems and methods of channel switching. For example, an apparatus may include logic and circuitry configured to cause a wireless communication station to transmit a power save mode indication to an Access Point (AP) over a first wireless communication channel; to wait over the first wireless communication channel for a waiting period subsequent to transmission of the power save mode indication; to switch to a second wireless communication channel after the waiting period; and to adjust a duration of the waiting period based on reception of one or more frames from the AP during the waiting period.

First claim

What is claimed is:

1 . An apparatus comprising logic and circuitry configured to cause a wireless communication station to:
transmit a power save mode indication to an Access Point (AP) over a first wireless communication channel; wait over the first wireless communication channel for a waiting period subsequent to transmission of the power save mode indication; switch to a second wireless communication channel after the waiting period; and adjust a duration of the waiting period based on reception of one or more frames from the AP during the waiting period.

2 . The apparatus of claim 1 configured to cause the wireless communication station to adjust the duration of the waiting period based on a criterion corresponding to a time of arrival of at least one frame from the AP during the waiting period.

3 . The apparatus of claim 1 configured to cause the wireless communication station to adjust the duration of the waiting period based on whether at least one frame from the AP is received during a time window beginning within the waiting period and ending at an end of the waiting period.

4 . The apparatus of claim 3 configured to cause the wireless communication station to decrease the duration of the waiting period when no frame from the AP is received during the time window.

5 . The apparatus of claim 3 configured to cause the wireless communication station to increase the duration of the waiting period when the at least one frame from the AP is received during the time window.

6 . The apparatus of claim 1 configured to cause the wireless communication station to increase the duration of the waiting period when at least one frame from the AP is received during a first time window, and to decrease the duration of the waiting period when no frame is received from the AP during a second time window, the first time window is to begin at a first time within the waiting period and to end at an end of the waiting period, and the second time window is to begin at a second time within the waiting window and to end at the end of the waiting period.

7 . The apparatus of claim 6 configured to cause the wireless communication station to maintain the duration of the waiting period when a last frame from the AP is received in a third time window between the first time and the second time.

8 . The apparatus of claim 6 , wherein the second time is before the first time.

9 . The apparatus of claim 1 configured to cause the wireless communication station to increase the duration of the waiting period when at least one frame is received from the AP during the waiting period.

10 . The apparatus of claim 1 configured to cause the wireless communication station to decrease the duration of the waiting period when no frame is received from the AP during the waiting period.

11 . The apparatus of claim 1 , wherein the indication comprises a Non-Data Packet (NDP) having a Power Management (PM) bit to indicate a power save mode of the wireless communication station.

12 . The apparatus of claim 1 comprising a radio to transmit the indication.

13 . The apparatus of claim 1 comprising one or more antennas, a processor, and a memory.

14 . A system of wireless communication comprising a wireless communication station, the wireless communication station comprising:
one or more antennas; a radio; a memory; a processor; and a controller configured to cause the wireless communication station to:
transmit a power save mode indication to an Access Point (AP) over a first wireless communication channel;
wait over the first wireless communication channel for a waiting period subsequent to transmission of the power save mode indication;
switch to a second wireless communication channel after the waiting period; and
adjust a duration of the waiting period based on reception of one or more frames from the AP during the waiting period.

15 . The system of claim 14 , wherein the controller is configured to cause the wireless communication station to adjust the duration of the waiting period based on a criterion corresponding to a time of arrival of at least one frame from the AP during the waiting period.

16 . The system of claim 14 , wherein the controller is configured to cause the wireless communication station to adjust the duration of the waiting period based on whether at least one frame from the AP is received during a time window beginning within the waiting period and ending at an end of the waiting period.

17 . The system of claim 14 , wherein the controller is configured to cause the wireless communication station to increase the duration of the waiting period when at least one frame from the AP is received during a first time window, and to decrease the duration of the waiting period when no frame is received from the AP during a second time window, the first time window is to begin at a first time within the waiting period and to end at an end of the waiting period, and the second time window is to begin at a second time within the waiting window and to end at the end of the waiting period.

18 . The system of claim 14 , wherein the indication comprises a Non-Data Packet (NDP) having a Power Management (PM) bit to indicate a power save mode of the wireless communication station.

19 . A method to be performed at a wireless communication station, the method comprising:
transmitting a power save mode indication to an Access Point (AP) over a first wireless communication channel; waiting over the first wireless communication channel for a waiting period subsequent to transmission of the power save mode indication; switching to a second wireless communication channel after the waiting period; and adjusting a duration of the waiting period based on reception of one or more frames from the AP during the waiting period.

20 . The method of claim 19 comprising adjusting the duration of the waiting period based on a criterion corresponding to a time of arrival of at least one frame from the AP during the waiting period.

21 . The method of claim 19 , wherein the indication comprises a Non-Data Packet (NDP) having a Power Management (PM) bit to indicate a power save mode of the wireless communication station.

22 . A product including one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a wireless communication station to:
transmit a power save mode indication to an Access Point (AP) over a first wireless communication channel; wait over the first wireless communication channel for a waiting period subsequent to transmission of the power save mode indication; switch to a second wireless communication channel after the waiting period; and adjust a duration of the waiting period based on reception of one or more frames from the AP during the waiting period.

23 . The product of claim 22 , wherein the instructions, when executed, cause the wireless communication station to adjust the duration of the waiting period based on a criterion corresponding to a time of arrival of at least one frame from the AP during the waiting period.

24 . The product of claim 22 , wherein the instructions, when executed, cause the wireless communication station to adjust the duration of the waiting period based on whether at least one frame from the AP is received during a time wind

Assignees

• Intel Ip Corp

Inventors

• Ginsburg Noam
• Shalev Oz

Classifications

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W52/0206 Primary

  in access points, e.g. base stations · CPC title

• H04W52/0274

  by switching on or off the equipment or parts thereof · CPC title