公开(公告)号：US20230246750A1

公开(公告)日：2023-08-03

申请号：US17589680

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

Inventor： Sitaramanjaneyulu Kanamarlapudi ,  Prashanth Haridas Hande ,  Ravi Agarwal ,  Yih-Hao Lin

IPC: H04L1/18 ,  H04L5/00

CPC classification number: H04L1/189 ,  H04L1/1893 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communication are described. A device (e.g., a user equipment (UE) or a base station) may communicate (e.g., receive or transmit) a set of service data units (SDUs) of an application data unit (ADU). The device may be aware of the set of SDUs corresponding to the ADU based on an identifier in a header of the set of SDUs. The device may determine that an SDU of the ADU is absent and proactively transmit a signal based on identifying the absent SDU. Signaling ADU awareness between distributed units (DUs) and a centralized unit (CU) of a base station is described. The CU may indicate that a set of SDUs correspond to an ADU via a user plane interface. For example, a header associated with the interface may include one or more bits identifying the ADU in a payload corresponding to the header.

公开(公告)号：US11716700B2

公开(公告)日：2023-08-01

申请号：US17975156

申请日：2022-10-27

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn ,  Naga Bhushan

IPC: H04W64/00 ,  H04W74/08 ,  G01S5/02 ,  H04L5/00 ,  H04W12/122

CPC classification number: H04W64/003 ,  G01S5/02216 ,  H04L5/0048 ,  H04W12/122 ,  H04W74/0833

Abstract: A base station determines a window of time for arrival of uplink signals, wherein the window of time includes a start based on a first expected time of arrival for a first uplink signal from a first UE and an end based on a second expected time of arrival for a second uplink signal from a second UE. The base station detection detects a false base station, such as a L1 man-in-the-middle false base station, based on an uplink signal being received outside of the determined window of time for the arrival of uplink signals.

公开(公告)号：US20230231788A1

公开(公告)日：2023-07-20

申请号：US17576270

申请日：2022-01-14

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Haridas Hande ,  Nikolai Konrad Leung ,  Peerapol Tinnakornsrisuphap ,  Dario Serafino Tonesi ,  Sebastian Speicher ,  Thomas Stockhammer ,  Mickael Mondet ,  Yih-Hao Lin ,  Ravi Agarwal ,  Simone Merlin

IPC: H04L43/0864 ,  H04L43/0882 ,  H04L43/0817 ,  H04L43/106 ,  H04W28/08

CPC classification number: H04L43/0864 ,  H04L43/0882 ,  H04L43/0817 ,  H04L43/106 ,  H04W28/0975

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications entity, such as a user equipment (UE), a base station, a network core, or an application server, may identify a round-trip time (RTT) latency requirement that may pertain to a round-trip latency in wireless communications between the UE and the base station. The wireless communications entity may identify a one one-way directional delay budget that satisfies the RTT latency requirement for an application of an application server. The application server may be in communication with the UE via the base station. The wireless communications entity may modify a value of the one-way directional delay budget and transmit a message that is associated with the modified value of the one one-way directional delay budget.

公开(公告)号：US11540182B2

公开(公告)日：2022-12-27

申请号：US17038665

申请日：2020-09-30

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Soo Bum Lee ,  Ravi Agarwal ,  Luis Fernando Brisson Lopes ,  Ozcan Ozturk ,  Masato Kitazoe ,  Linhai He ,  Hung Dinh Ly

IPC: H04W36/00 ,  H04W36/38 ,  H04W12/041

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a frequency associated with a synchronization signal block (SSB) associated with a base station. The UE may generate a security key associated with a handover of the UE based at least in part on the frequency associated with the SSB. Numerous other aspects are provided.

公开(公告)号：US11533623B2

公开(公告)日：2022-12-20

申请号：US17086240

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn ,  Naga Bhushan

IPC: G06F21/00 ,  H04W12/122 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00 ,  H04W12/61 ,  H04W12/73

Abstract: Apparatus, methods, and computer-readable media for facilitating detection of false base stations based on signal times of arrival are disclosed herein. An example method for wireless communication of a UE includes receiving a signal from each of one or more neighboring base stations. The example method also includes determining a system timing associated with the wireless communications network based on a respective time of arrival at which each signal is received from the neighboring base stations. The example method also includes receiving a signal from an FBS, the FBS signal being associated with a PCI different than the PCIs associated with the signals received from each of the neighboring base stations. Additionally, the example method includes identifying a presence of the FBS based on a difference between the system timing and a time of arrival at which the signal is received from the FBS.

公开(公告)号：US11516765B2

公开(公告)日：2022-11-29

申请号：US17086257

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn ,  Naga Bhushan

IPC: H04W64/00 ,  H04W74/08 ,  G01S5/02 ,  H04L5/00 ,  H04W12/122

Abstract: A base station determines a window of time for arrival of uplink signals, wherein the window of time includes a start based on a first expected time of arrival for a first uplink signal from a first UE and an end based on a second expected time of arrival for a second uplink signal from a second UE. The base station detection detects a false base station, such as a L1 man-in-the-middle false base station, based on an uplink signal being received outside of the determined window of time for the arrival of uplink signals.

公开(公告)号：US11375377B2

公开(公告)日：2022-06-28

申请号：US17015922

申请日：2020-09-09

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Gavin Bernard Horn ,  Ravi Agarwal ,  Soo Bum Lee ,  Ozcan Ozturk ,  Naga Bhushan

IPC: H04W48/12 ,  H04W12/122

Abstract: Certain aspects of the present disclosure provide techniques for detecting false base stations and transmissions therefrom.

公开(公告)号：US11363582B2

公开(公告)日：2022-06-14

申请号：US16723783

申请日：2019-12-20

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Gavin Bernard Horn ,  Ravi Agarwal ,  Ozcan Ozturk ,  Naga Bhushan

IPC: H04W72/04 ,  H04W12/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station in a wireless communications system. The base station may transmit signaling to the UE over a broadcast channel. The base station may transmit control signaling to the UE that indicates a broadcast root key. The UE may identify the broadcast root key for a wireless network corresponding to the base station. The base station may transmit an encrypted broadcast transmission. The UE may receive the encrypted broadcast transmission from the base station, and the UE may decrypt the encrypted broadcast transmission to obtain broadcast information based on a cell-specific key derived from the broadcast root key.

公开(公告)号：US20210360448A1

公开(公告)日：2021-11-18

申请号：US17231281

申请日：2021-04-15

Applicant: QUALCOMM Incorporated

Inventor： Yuchul Kim ,  Huilin Xu ,  Hwan Joon Kwon ,  Peter Pui Lok Ang ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli ,  Yeliz Tokgoz ,  Jing Lei ,  Tingfang Ji ,  Ravi Agarwal ,  Seyong Park

IPC: H04W24/08 ,  H04W72/04 ,  H04L1/16 ,  H04L1/08 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit capability information including an indication of a discontinuous monitoring delay period. The UE may receive a message including an indication to adjust monitoring of a physical downlink control channel (PDCCH), and monitor for the PDCCH during the discontinuous monitoring delay period. The UE may adjust monitoring for the PDCCH following the discontinuous monitoring delay period during a temporal period based on the received indication to adjust monitoring of the PDCCH. In some examples, at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled during the temporal period while monitoring of the PDCCH is adjusted.

公开(公告)号：US20180132292A1

公开(公告)日：2018-05-10

申请号：US15614522

申请日：2017-06-05

Applicant: QUALCOMM Incorporated

Inventor： Yue Yang ,  Aziz Gholmieh ,  Srinivasan Balasubramanian ,  Ravi Agarwal ,  Gavin Bernard Horn ,  Peter Pui Lok Ang

IPC: H04W76/02

CPC classification number: H04W76/18 ,  H04W8/005 ,  H04W52/0216 ,  H04W52/0229 ,  H04W76/10 ,  H04W76/28 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

Abstract: Techniques are described for wireless communication. A base station may indicate to a UE, in a pre-wakeup period, whether the base station will transmit a grant to the UE. The pre-wakeup period may occur at the beginning of a DRX cycle. The base station may transmit an indication of a grant to the UE, and the base station may indicate a time period during which the UE may wake up to receive the grant. The indication may include scheduling information for the grant. The UE may select a DRX mode based on a configuration received from the base station, a traffic pattern, or scheduling history. The UE may monitor for the grant, and receive the grant. In other examples, the UE or the base station may identify that the grant was not received, and may reset a DRX cycle based on the identification.