INTEGRITY PROTECTION OF UPLINK DATA

    公开(公告)号:US20220159465A1

    公开(公告)日:2022-05-19

    申请号:US17439308

    申请日:2020-03-24

    Applicant: Apple Inc.

    Abstract: This disclosure describes methods, systems, and devices for uplink data integrity protection in a communication system including a radio access network (RAN) serving a user equipment (UE) operating in an Early Data Transmission (EDT) configuration. In one example, a method involves generating a hash marker based on a packet data convergence protocol (PDCP) control protocol data unit (PDU) or service data unit (SDU). The method also involves transmitting a message including the hash marker to the RAN.

    CHANNEL QUALITY MEASUREMENT REPORTING

    公开(公告)号:US20210219166A1

    公开(公告)日:2021-07-15

    申请号:US17263463

    申请日:2019-08-02

    Applicant: APPLE INC.

    Abstract: Technology for a user equipment (UE) operable to perform downlink (DL) channel quality measurement reporting is disclosed. The UE can decode a system information block type y bandwidth reduced (SIBy-BR) received from an eNodeB. The SIB1-BR can instruct the UE to include a DL channel quality measurement report in a message 3 (Msg3) transmitted during a random access procedure between the UE and the eNodeB, wherein y is a positive integer greater than or equal to 1. The UE can determine a DL channel quality measurement for a DL channel between the UE and the eNodeB. The UE can encode the Msg3 for delivery over an uplink channel to the eNodeB. The Msg3 can be delivered during the random access procedure and can include the DL channel quality measurement report with the DL channel quality measurement.

    Latency management for integrated access and backhaul

    公开(公告)号:US12256264B2

    公开(公告)日:2025-03-18

    申请号:US18423754

    申请日:2024-01-26

    Applicant: APPLE INC.

    Abstract: Technology for an Integrated Access and Backhaul (IAB) node in an IAB network is disclosed. The IAB node can decode, at a distributed unit (DU) of the IAB node, a first resource request received from one of a user equipment (UE) or a child IAB node, wherein the first resource request is associated with the UE. The IAB node can encode, at a mobile terminal (MT) of the IAB node, a second resource request for transmission to the parent IAB node or the IAB donor triggered by receipt of the first resource request, wherein the second resource request is transmitted prior to a receipt of a protocol data unit (PDU) at the DU of the IAB node.

    Latency management for integrated access and backhaul

    公开(公告)号:US11924675B2

    公开(公告)日:2024-03-05

    申请号:US17285386

    申请日:2019-10-16

    Applicant: APPLE INC.

    CPC classification number: H04W28/0278 H04W72/20 H04W72/23 H04W92/20

    Abstract: Technology for an Integrated Access and Backhaul (IAB) node in an IAB network is disclosed. The IAB node can decode, at a distributed unit (DU) of the IAB node, a first resource request received from one of a user equipment (UE) or a child IAB node, wherein the first resource request is associated with the UE. The IAB node can encode, at a mobile terminal (MT) of the IAB node, a second resource request for transmission to the parent IAB node or the IAB donor triggered by receipt of the first resource request, wherein the second resource request is transmitted prior to a receipt of a protocol data unit (PDU) at the DU of the IAB node.

    Integrity protection for frequent small data transmission

    公开(公告)号:US11678191B2

    公开(公告)日:2023-06-13

    申请号:US17299532

    申请日:2019-11-27

    Applicant: Apple Inc.

    Abstract: Packet protection is described. Data of a group of packets is concatenated with a security key and a sequence number of the packet. A hash mark of the concatenated data is calculated and sent with data or control information in a packet. If each packet has reserved bits, at least some of the packets each has data, a least a portion of the hash mark, and a header having: a first bit that indicates if the hash mark is present, and a second bit that indicates if the packet is used to determine the hash mark. Otherwise, a separate control packet is sent that contains the hash mark, a first sequence number of the group of packets, and a PDU type indicating that the control packet is an integrity protection packet for the group of PDCP packets.

    Early data transmission in wireless communication system

    公开(公告)号:US11382140B2

    公开(公告)日:2022-07-05

    申请号:US17020368

    申请日:2020-09-14

    Applicant: Apple Inc.

    Abstract: Provided herein is design of early data transmission in wireless communication system. An apparatus for a user equipment (UE) includes a processor configured to: encode a physical random access channel (PRACH) sequence from a plurality of PRACH sequence for transmission via a PRACH to perform a random access procedure, wherein indication of support of early data transmission (EDT) that is transmitted during the random access procedure is based on at least one of the plurality of PRACH sequences, higher layer signaling, PRACH resources, PRACH formats, and a payload from the UE; and send the PRACH sequence to a radio frequency (RF) interface; and the RF interface to receive the PRACH sequence from the processor. Design of random access response (RAR) is also disclosed herein.

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