公开(公告)号：US10681632B2

公开(公告)日：2020-06-09

申请号：US16012969

申请日：2018-06-20

Applicant: APPLE INC.

Inventor： Harish Ramamurthy ,  Joonsuk Kim ,  Yong Liu ,  Christopher Hansen

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08

Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.

公开(公告)号：US20180302854A1

公开(公告)日：2018-10-18

申请号：US16012969

申请日：2018-06-20

Applicant: APPLE INC.

Inventor： Harish Ramamurthy ,  Joonsuk Kim ,  Yong Liu ,  Christopher Hansen

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08

Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.

公开(公告)号：US10015741B2

公开(公告)日：2018-07-03

申请号：US14502811

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Harish Ramamurthy ,  Joonsuk Kim ,  Yong Liu ,  Christopher Hansen

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W52/0212 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0235 ,  H04W52/028 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.

公开(公告)号：US09680563B2

公开(公告)日：2017-06-13

申请号：US14502771

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Joonsuk Kim ,  Yong Liu ,  Christopher Hansen ,  Harish Ramamurthy

IPC: H04W4/00 ,  H04B7/26 ,  H04L5/00

CPC classification number: H04B7/2621 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0092

Abstract: A system and method for partial bandwidth communication. The system includes a device that has a transceiver configured to connect to a network, a memory storing an executable program and a processor. The program causes the processor to perform operations including receiving data to be transmitted to second device, determining if the data uses less than a predetermined bandwidth used as a unit for a carrier aggregation, determining a plurality of sub-bands in the predetermined bandwidth, each sub-band including at least one pilot and a plurality of frequency tones, receiving network information from the second device, the network information indicating a preferred sub-band of the sub-bands, assigning one of the sub-bands to the second device based upon the network information, generating a packet including an indication, the indication indicating the assigned sub-band; transmitting the packet to the second device and transmitting the data in the assigned sub-band.