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    Methods to reduce radio link control retransmission
    91.
    发明授权
    Methods to reduce radio link control retransmission 有权

    公开(公告)号：US10938520B2

    公开(公告)日：2021-03-02

    申请号：US16419751

    申请日：2019-05-22

    Applicant: QUALCOMM Incorporated

    Inventor： Arun Prasanth Balasubramanian ,  Shailesh Maheshwari ,  Xing Chen ,  Arnaud Meylan ,  Jason Tan ,  Wei-Jei Song

    IPC: H04L1/18 ,  H04W28/04

    Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive, at a first operational layer of the receiving device, one or more protocol data units (PDUs) within a set of PDUs. The receiving device may identify, at a second operational layer of the receiving device, a sequence gap associated with a missing PDU from the set of PDUs, the first operational layer being a lower operational layer of the receiving device than the second operational layer. The receiving device may determine, at the second operational layer, that a triggering condition associated with the missing PDU has occurred. The receiving device may provide, by the second operational layer and based at least in part on the triggering condition occurring, an indication to update a reception buffer of the first operational layer to a last received protocol data unit of the set of PDUs.

    Evolved data compression scheme signaling
    93.
    发明授权
    Evolved data compression scheme signaling 有权

    公开(公告)号：US10805430B2

    公开(公告)日：2020-10-13

    申请号：US16383374

    申请日：2019-04-12

    Applicant: QUALCOMM Incorporated

    Inventor： Ashwini Raina ,  Shailesh Maheshwari ,  Vishal Dalmiya ,  Srinivasan Balasubramanian ,  Rohit Kapoor ,  Seyed Ali Ahmadzadeh ,  Leena Zacharias

    IPC: H04W28/06 ,  H04L29/06 ,  H04W28/02 ,  H04W28/18

    Abstract: Methods, systems, and devices are described for wireless communication at a UE. In aspects, a receiver may receive a transmission requesting information about support for data compression. The receiver may determine parameters related to the types of supported data compression and communicate the information to the transmitting device. In some cases, the receiver may then receive a message from the transmitting entity that requests establishment of a data compression configuration. The receiver may respond with confirmation or rejection of the proposed compression configuration. If the configuration is confirmed, the transmitter and receiver may exchange compressed data packets according to the configuration. The devices may exchange status and control information related to the compression configuration (e.g., in a compression header of a compressed message or a separate status and/or control information message).

    Techniques for securing PDCP control PDU
    95.
    发明授权
    Techniques for securing PDCP control PDU 有权

    公开(公告)号：US10757754B2

    公开(公告)日：2020-08-25

    申请号：US15595474

    申请日：2017-05-15

    Applicant: QUALCOMM Incorporated

    Inventor： Soo Bum Lee ,  Gavin Bernard Horn ,  Yu-Ting Yu ,  Shailesh Maheshwari ,  Vanitha Kumar

    IPC: H04L29/06 ,  H04W80/02 ,  H04W12/04 ,  H04W12/00 ,  H04L12/801 ,  H04W88/08 ,  H04W36/00 ,  H04L29/08 ,  H04W28/06

    Abstract: Techniques are described herein to secure a packet data convergence protocol (PDCP) control protocol data unit (PDU). A base station may determine a security configuration for a PDCP control PDU based on various factors including the content of the PDCP control PDU. For example, the security configuration of the PDCP control PDU may be applied because the PDCP control PDU includes a retransmission request. A counter dedicated to PDCP control PDUs may be initialized. The security protocols may be based on the dedicated counter. Some types of security parameters may be shared in some contexts such as in handover procedures or dual connectivity procedures. For example, security configurations associated with a second communication link may be based on security configurations associated with a first communication link. PDCP control PDUs may be secured based on the security configurations, the security parameters, protection keys, or combinations thereof.

    Data compression techniques for handover and radio link failure recovery
    97.
    发明授权
    Data compression techniques for handover and radio link failure recovery 有权

    公开(公告)号：US10470090B2

    公开(公告)日：2019-11-05

    申请号：US14940134

    申请日：2015-11-12

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivasan Balasubramanian ,  Seyed Ali Ahmadzadeh ,  Shailesh Maheshwari ,  Ashwini Raina ,  Rohit Kapoor ,  Leena Zacharias ,  Vishal Dalmiya

    IPC: H04W36/02 ,  H04W36/00

    Abstract: A user equipment (UE) and source base station may use data compression techniques for data packets sent between them. During a handover, the source base station may provide data compression context to a target base station, thus enabling the target base station to continue the data compression following the handover without having to reestablish the data compression context. The source base station may determine data compression capabilities of the UE or the target base station, or both, and may communicate the determined data compression capabilities to the UE or target base station. The source base station may identify at least one gap in a sequence of packets received from the UE, and communicate the existence of the gap to the target base station, which may request retransmission of packets associated with the gap.

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