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    DUAL PRIORITY BEARERS FOR VIDEO TRANSMISSION
    21.
    发明申请
    DUAL PRIORITY BEARERS FOR VIDEO TRANSMISSION 审中-公开

    公开(公告)号：US20190260669A1

    公开(公告)日：2019-08-22

    申请号：US16333500

    申请日：2017-04-20

    Applicant: Qualcomm Incorporated

    Inventor： Xipeng Zhu ,  Ruiming Zheng ,  Rulin Xing ,  Huichun Liu ,  Thomas Stockhammer ,  Stefano Faccin ,  Kuo-Chun Lee ,  Feilu Liu ,  Yu-Ting Yu

    IPC: H04L12/707 ,  H04L12/801 ,  H04W28/02 ,  H04W76/15

    Abstract: A user equipment (UE) may identify a bearer (e.g., a default bearer) and request establishment of a second bearer (e.g., a high priority bearer) for use in streaming downlink data from, for example, an application server. The UE may determine a status of a playout buffer and select the first bearer or the second bearer for use in streaming the downlink data associated with the application based on the status of the playout buffer. For example, the first bearer may be used be used by default, and the second bearer may be selected if the amount of data in the playout buffer does not satisfy (e.g., is below) a threshold. In some cases, each bearer may be associated with a transmission control protocol (TCP) port associated with a TCP connection. In some cases, each bearer may be associated with different Internet protocol (IP) address.

    TECHNIQUES FOR SECURING PDCP CONTROL PDU
    22.
    发明申请
    TECHNIQUES FOR SECURING PDCP CONTROL PDU 审中-公开

    公开(公告)号：US20180124865A1

    公开(公告)日：2018-05-03

    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: H04W80/02 ,  H04L12/801

    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.

    Radio link failure (RLF) procedure with generic cell group management
    25.
    发明授权
    Radio link failure (RLF) procedure with generic cell group management 有权

    公开(公告)号：US11582823B2

    公开(公告)日：2023-02-14

    申请号：US16847544

    申请日：2020-04-13

    Applicant: QUALCOMM Incorporated

    Inventor： Yu-Ting Yu ,  Keiichi Kubota ,  Gavin Bernard Horn ,  Karthika Paladugu

    IPC: H04W76/18 ,  H04W92/10 ,  H04W76/30 ,  H04W72/04 ,  H04W80/02

    Abstract: Methods, systems, and devices for wireless communications are described. One example method for wireless communications at a user equipment (UE) includes detecting a radio link failure (RLF) condition for a connection between the UE and a network over a first cell group and determining, in response to detecting the RLF condition, whether an air interface resource allocation is available for a signaling radio bearer (SRB) between the UE and the network over another cell group. The method also includes selecting, based at least in part on the determination, one of a plurality of RLF procedures. In some examples, the UE may select a first RLF procedure that fully releases radio resources when no SRB is available and a different, second RLF procedure that partially when an SRB is available between the UE and the network over a second cell group.

    Radio link failure (RFL) procedure with generic cell group management
    26.
    发明授权
    Radio link failure (RFL) procedure with generic cell group management 有权

    公开(公告)号：US11405972B2

    公开(公告)日：2022-08-02

    申请号：US16425146

    申请日：2019-05-29

    Applicant: QUALCOMM Incorporated

    Inventor： Yu-Ting Yu ,  Keiichi Kubota ,  Gavin Bernard Horn ,  Karthika Paladugu

    IPC: H04W76/18 ,  H04W92/10 ,  H04W76/30 ,  H04W72/04 ,  H04W80/02

    Abstract: Methods, systems, and devices for wireless communications are described. One example method for wireless communications at a user equipment (UE) includes detecting a radio link failure (RLF) condition for a connection between the UE and a network over a first cell group and determining, in response to detecting the RLF condition, whether an air interface resource allocation is available for a signaling radio bearer (SRB) between the UE and the network over another cell group. The method also includes selecting, based at least in part on the determination, one of a plurality of RLF procedures. In some examples, the UE may select a first RLF procedure that fully releases radio resources when no SRB is available and a different, second RLF procedure that partially when an SRB is available between the UE and the network over a second cell group.

    Mobility robustness and spatial reliability using multi-connectivity
    27.
    发明授权
    Mobility robustness and spatial reliability using multi-connectivity 有权

    公开(公告)号：US11330653B2

    公开(公告)日：2022-05-10

    申请号：US16440220

    申请日：2019-06-13

    Applicant: QUALCOMM incorporated

    Inventor： Karthika Paladugu ,  Yu-Ting Yu ,  Gavin Bernard Horn ,  Keiichi Kubota

    IPC: H04W76/15 ,  H04W72/04 ,  H04W24/10

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support multi-connectivity for a user equipment (UE) with multiple distributed units (DUs) under one central unit (CU), the DUs and the CU belonging to a base station. The UE may establish radio resource control (RRC) connections with multiple cell groups corresponding to multiple DUs under the CU. The UE may transmit measurement reports that provide measurement information for cells in proximity to the UE. The UE may maintain a set of active cell groups and a set of inactive cell groups. In some cases, one or more cell groups may be identified as controlling cell groups used to transmit control information. In some examples, the UE may replicate an uplink packets and transmit the uplink packet and replicates on multiple cell groups. In some cases, the UE may aggregate an uplink transmission among multiple cell groups.

    Techniques for transmission control protocol aware handover type determination
    29.
    发明授权
    Techniques for transmission control protocol aware handover type determination 有权

    公开(公告)号：US11044639B2

    公开(公告)日：2021-06-22

    申请号：US15243360

    申请日：2016-08-22

    Applicant: QUALCOMM Incorporated

    Inventor： Yu-Ting Yu ,  Vincent Douglas Park ,  Gavin Bernard Horn

    IPC: H04W36/00

    Abstract: Methods, systems, and devices for wireless communication are described. A serving base station may determine a handover loss metric associated with a UE that is a candidate for handover. The handover loss metric may be based on connection parameters associated with the serving base station and a target base station, respectively. The serving base station may identify, based on the handover loss metric, a type of handover procedure to perform. The serving base station may perform the handover procedure of the UE to the target base station according to the identified handover type.

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