SYSTEMS AND METHODS FOR MANAGING TRANSMISSION CONTROL PROTOCOL (TCP) ACKNOWLEDGEMENTS

    公开(公告)号:US20230023893A1

    公开(公告)日:2023-01-26

    申请号:US17851124

    申请日:2022-06-28

    Applicant: Apple Inc.

    Abstract: A client device in a wireless network accesses a queue comprising Transmission Control Protocol Acknowledgement (TCP ACK) packets, at least some of which include packet descriptors, each with a flow identifier indicating a TCP flow associated with the packet, and a TCP ACK Generation Count. The device inspects a packet descriptor of a first TCP ACK packet, and identifies a first flow identifier and a first TCP ACK Generation Count. The device accesses entries in a data structure that each includes a first field and a second field respectively storing a flow identifier and a TCP ACK Generation Count. The device determines that a first entry in the data structure includes a flow identifier and a TCP ACK Generation Count matching the first flow identifier and the first TCP ACK Generation Count, respectively. In response to the determination, the device marks the first TCP ACK packet to be dropped.

    De-prioritizing LTE anchor cell based on NR cell measurements

    公开(公告)号:US11558794B2

    公开(公告)日:2023-01-17

    申请号:US17239206

    申请日:2021-04-23

    Applicant: APPLE INC.

    Abstract: Systems and methods are disclosed for de-prioritizing an LTE anchor cell based on NR cell measurements. A UE may register on a first cell of a first Radio Access Technology (RAT), process a configuration message from a network prioritizing an anchor band of the first RAT, perform a first cell reselection from the first cell to a second cell of the first RAT that is in the anchor band, and perform cell measurements on one or more cells of a second RAT. In response to determining that none of the cell measurements for the one or more cells of the second RAT exceeds a threshold, the UE de-prioritizes the second cell in ranked cell prioritization data and performs a second cell reselection from the second cell of the first RAT to another cell of the first RAT based on the ranked cell prioritization data.

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