Transmission control protocol (TCP) acknowledgement (ACK) packet suppression

    公开(公告)号:US11522979B2

    公开(公告)日:2022-12-06

    申请号:US17329919

    申请日:2021-05-25

    Abstract: Systems and methods for Transmission Control Protocol (TCP) acknowledgement (ACK) packet suppression are described. In various implementations, these systems and methods may be applicable to low-power communications. For example, a method may include receive a transport packet at a transport layer; de-encapsulating the transport packet using a transport protocol to identify a security packet; communicating the security packet to a security layer by the transport layer; communicating an acknowledgement signal to the transport layer from the security layer in response to receiving the security packet; suppressing an acknowledgement packet at the transport layer in response to receiving the acknowledgement signal; adding an acknowledgment indication to a next data packet to be sent after the suppress action; and sending the next data packet.

    Power saving medium access in congested network environments

    公开(公告)号:US11178566B2

    公开(公告)日:2021-11-16

    申请号:US15816731

    申请日:2017-11-17

    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.

    Transmission control protocol (TCP) acknowledgement (ACK) packet suppression

    公开(公告)号:US11050857B2

    公开(公告)日:2021-06-29

    申请号:US14333751

    申请日:2014-07-17

    Abstract: Systems and methods for Transmission Control Protocol (TCP) acknowledgement (ACK) packet suppression are described. In various implementations, these systems and methods may be applicable to low-power communications. For example, a method may include receive an incoming TCP packet at a TCP layer implemented by the communication system; de-encapsulating the incoming TCP packet using a TCP protocol to identify an incoming Secure Sockets Layer (SSL) or Transport Layer Security (TLS) packet; passing the incoming SSL or TLS packet from the TCP layer to an SSL or TLS layer; and signaling, by the SSL or TLS layer to the TCP layer in response to the SSL or TLS layer having received the incoming SSL or TLS packet, that a TCP acknowledgement be suppressed by the TCP layer.

    Wireless Fine Time Measurement Authentication

    公开(公告)号:US20230055972A1

    公开(公告)日:2023-02-23

    申请号:US17406059

    申请日:2021-08-18

    Abstract: A Fine Time Measurement (FTM) authentication system and method include performing a FTM transaction comprising at least one FTM-ACK message pair transmitted and received via a first communication channel between two endpoints, where the at least one FTM-ACK message pair contains timestamp values of message departure time and message arrival time during the FTM transaction. At least one authenticating value indicative of timestamp values of the at least one FTM-ACK message pair arrival and departure times during the FTM transaction is then transmitted via a second communication channel. FTM timestamp values are recovered from the received at least one authenticating value, which are compared with the received FTM timestamp values. The received FTM timestamp values can be authenticated if there is a match between the recovered FTM timestamp values and the received FTM timestamp values.

    WIRELESS SYNCHRONIZATION BASED ON BEACONS
    8.
    发明申请
    WIRELESS SYNCHRONIZATION BASED ON BEACONS 有权
    基于BEACONS的无线同步

    公开(公告)号:US20160262120A1

    公开(公告)日:2016-09-08

    申请号:US14788330

    申请日:2015-06-30

    CPC classification number: H04W56/001 H04W40/244 H04W84/12 H04W88/08

    Abstract: A circuit includes a processor to store a beacon timestamp generated from a wireless network. An output port controlled by the processor causes an interrupt that initiates a capture of a link layer timestamp relative to the beacon timestamp. An input port on the processor receives the link layer time stamp. A synchronizer captures a processor timestamp relative to the beacon timestamp and determines a time offset value relative to the received link layer time stamp by computing a difference between the processor timestamp and the link layer timestamp. The time offset value is combined with the processor timestamp to synchronize the processor with respect to the beacon timestamp.

    Abstract translation: 电路包括用于存储从无线网络生成的信标时间戳的处理器。 由处理器控制的输出端口产生相对于信标时间戳发起链接层时间戳捕获的中断。 处理器上的输入端口接收链路层时间戳。 同步器捕获相对于信标时间戳的处理器时间戳,并且通过计算处理器时间戳和链路层时间戳之间的差异来确定相对于接收的链路层时间戳的时间偏移值。 时间偏移值与处理器时间戳组合以使处理器相对于信标时间戳同步。

    POWER SAVING MEDIUM ACCESS IN CONGESTED NETWORK ENVIRONMENTS

    公开(公告)号:US20240040424A1

    公开(公告)日:2024-02-01

    申请号:US18486227

    申请日:2023-10-13

    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.

    POWER SAVING MEDIUM ACCESS IN CONGESTED NETWORK ENVIRONMENTS

    公开(公告)号:US20220038938A1

    公开(公告)日:2022-02-03

    申请号:US17502337

    申请日:2021-10-15

    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.

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