公开(公告)号：US10708859B2

公开(公告)日：2020-07-07

申请号：US15362358

申请日：2016-11-28

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Avi Baum ,  Yuval Jakira ,  Asaf Even-Chen

IPC: H04W52/02 ,  H04L29/08 ,  H04W84/12

Abstract: In a described example, an integrated circuit includes an input coupled to receive a plurality of beacon frames, the beacon frames include an indication of data transmissions available for a device that includes the integrated circuit. The integrated circuit also includes a controller configured to compare the plurality of beacon frames to determine a plurality of bytes prior to the indication of data transmission available that is present in each of the plurality of beacon frames and is configured to provide a signal indicating a low power mode in which the device does not receive transmissions and to provide a signal indicating a wake mode at a selected time before transmission of the plurality of bytes in a subsequent beacon transmission.

公开(公告)号：US20240040424A1

公开(公告)日：2024-02-01

申请号：US18486227

申请日：2023-10-13

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Uri Weinrib ,  Oren Shani

IPC: H04W28/02 ,  H04W52/02 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W28/0221 ,  H04W52/0216 ,  H04W74/004 ,  H04W28/0278 ,  H04W52/0229 ,  H04W74/0841 ,  H04W84/12

Abstract: A Wi-Fi device in a WLAN network includes a processor and a transceiver adapted to be coupled to an antenna, and a power saving medium access in congested network environments algorithm that is activated after a Wi-Fi connection is established with its access point (AP). A Traffic Indication Map (TIM) bitmap in a TIM information element received in a beacon frame from the AP is analyzed to determine whether more than a predetermined number of bits (X) are set to indicate the AP has ≥1 buffered frame for ones of the Wi-Fi devices to conclude whether the WLAN is in a congested environment. When in a congested environment, transmissions responsive to the beacon are postponed by entering a sleep mode for a random period of time (P). After P expires, the sleep mode is exited and a poll frame is transmitted to the AP to try to gain medium access.

公开(公告)号：US20240015651A1

公开(公告)日：2024-01-11

申请号：US18470690

申请日：2023-09-20

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Avi Baum ,  Yuval Jakira ,  Asaf Even-Chen

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04W52/0229 ,  Y02D30/70 ,  H04L67/12

Abstract: A controller is arranged to: receive a first decoded beacon frame which includes a first indication of a first data transmission; receive a second decoded beacon frame which includes a second indication of a second data transmission; compare the first and second decoded beacon frames to determine common bytes in the first and second decoded beacon frames; determine an expected time of receiving the common bytes in a third beacon frame; control a device to enter into a low power mode; and control the device to wake up from the low power mode at a time to receive and decode at least a portion of the third beacon frame, in which the time to wake up is based on the expected time to receive the common bytes instead of based on an expected time to receive a preamble at a start of the third beacon frame.

公开(公告)号：US20220038938A1

公开(公告)日：2022-02-03

申请号：US17502337

申请日：2021-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Oran Naftali ,  Uri Weinrib ,  Oren Shani

IPC: H04W28/02 ,  H04W52/02 ,  H04W74/00 ,  H04W74/08

Abstract: A Wi-Fi device in a WLAN network includes a processor and a transceiver adapted to be coupled to an antenna, and a power saving medium access in congested network environments algorithm that is activated after a Wi-Fi connection is established with its access point (AP). A Traffic Indication Map (TIM) bitmap in a TIM information element received in a beacon frame from the AP is analyzed to determine whether more than a predetermined number of bits (X) are set to indicate the AP has ≥1 buffered frame for ones of the Wi-Fi devices to conclude whether the WLAN is in a congested environment. When in a congested environment, transmissions responsive to the beacon are postponed by entering a sleep mode for a random period of time (P). After P expires, the sleep mode is exited and a poll frame is transmitted to the AP to try to gain medium access.

公开(公告)号：US11140627B2

公开(公告)日：2021-10-05

申请号：US14987583

申请日：2016-01-04

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Yuval Jakira ,  Liran Brecher ,  Asaf Even-Chen

IPC: H04W52/02 ,  H04W48/08 ,  H04W84/12 ,  H04W48/12

Abstract: According to an embodiment, a system and method is disclosed for efficient wake up in a wireless communication device for receiving beacons without significantly affecting the battery power and data throughput. Wireless device receives beacons from network elements such as access points. If beacons are not received as scheduled within defined intervals, then the wireless device determines a pattern of beacon reception timings and uses a weighted score process to select the best possible reception timing pattern and uses it as the schedule for receiving beacons on going forward basis, thus avoiding staying awake at all time to receive misaligned beacons.

公开(公告)号：US20190159056A1

公开(公告)日：2019-05-23

申请号：US15816731

申请日：2017-11-17

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Uri Weinrib ,  Oren Shani

IPC: H04W28/02 ,  H04W52/02 ,  H04W74/00

Abstract: A Wi-Fi device in a WLAN network includes a processor and a transceiver adapted to be coupled to an antenna, and a power saving medium access in congested network environments algorithm that is activated after a Wi-Fi connection is established with its access point (AP). A Traffic Indication Map (TIM) bitmap in a TIM information element received in a beacon frame from the AP is analyzed to determine whether more than a predetermined number of bits (X) are set to indicate the AP has ≥1 buffered frame for ones of the Wi-Fi devices to conclude whether the WLAN is in a congested environment. When in a congested environment, transmissions responsive to the beacon are postponed by entering a sleep mode for a random period of time (P). After P expires, the sleep mode is exited and a poll frame is transmitted to the AP to try to gain medium access.

公开(公告)号：US20180152886A1

公开(公告)日：2018-05-31

申请号：US15362358

申请日：2016-11-28

Applicant: Texas Instruments Incorporated

Inventor： Oran Naftali ,  Avi Baum ,  Yuval Jakira ,  Asaf Even-Chen

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04L67/12 ,  H04W52/0229 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/26

Abstract: In a described example, an integrated circuit includes an input coupled to receive a plurality of beacon frames, the beacon frames include an indication of data transmissions available for a device that includes the integrated circuit. The integrated circuit also includes a controller configured to compare the plurality of beacon frames to determine a plurality of bytes prior to the indication of data transmission available that is present in each of the plurality of beacon frames and is configured to provide a signal indicating a low power mode in which the device does not receive transmissions and to provide a signal indicating a wake mode at a selected time before transmission of the plurality of bytes in a subsequent beacon transmission.