Reduced signaling associated with activation and deactivation of a mode of operation of a mobile device

    公开(公告)号:US10904945B2

    公开(公告)日:2021-01-26

    申请号:US16157715

    申请日:2018-10-11

    Applicant: APPLE INC.

    Abstract: A device and method for a user equipment (UE) to reduce signaling with a network by conditionally barring the transmission of a particular signal to the network. The UE determines that a first predetermined condition related to radio conditions between the UE and the first cell is satisfied. The UE determines whether to activate a first mode of operation or a second mode of operation based on a second predetermined condition. The first mode of operation includes transmitting a signal that is intended to cause the release of a bearer between the UE and a packet data network (PDN). The second mode of operation includes barring the transmission of the signal that is intended to cause the release of the bearer between the UE and the PDN.

    Electronic Devices with Wireless Data Rate Impairment Mitigation

    公开(公告)号:US20250063425A1

    公开(公告)日:2025-02-20

    申请号:US18771113

    申请日:2024-07-12

    Applicant: Apple Inc.

    Abstract: A cellular communications system may include a user equipment (UE) that executes a target and non-target applications. The UE may convey a first stream of non-quality-of-service (QoS) wireless data with a first external device over a first Transmission Control Protocol (TCP) session and may receive a second stream of non-QoS wireless data from a second external device over a second TCP session. Responsive to a drop in data rate of the first stream, the UE may perform mitigation operations that adjust receipt of the second stream to boost the data rate of the first stream. The mitigation operations may include transmission of a triple duplicate acknowledgement (TDA), delayed transmission of an acknowledgment (ACK) to the second stream, and/or terminating the second TCP session. This may prevent disruptions to user experience with the first software application even when the network has downlink data to transmit to the UE.

    Conditional Handover Candidate Cell Selection

    公开(公告)号:US20240080743A1

    公开(公告)日:2024-03-07

    申请号:US18460351

    申请日:2023-09-01

    Applicant: Apple Inc.

    CPC classification number: H04W36/362 H04W36/30 H04W88/06

    Abstract: This disclosure relates to techniques for performing conditional handover candidate cell selection in a wireless communication system. A wireless device and a cellular base station may establish a wireless link. The wireless device may receive conditional handover configuration information. The conditional handover configuration information may indicate one or more conditions for performing handover and cell candidates for the conditional handover. The wireless device may determine that multiple cell candidates meet the conditions for performing handover. A cell candidate to which to perform handover may be selected based at least in part on one or more wireless device conditions. The wireless device may perform handover to the selected cell candidate.

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