公开(公告)号：US09491632B2

公开(公告)日：2016-11-08

申请号：US14486855

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek

IPC: H04W16/14 ,  H04J3/16 ,  H04W76/04 ,  H04W72/08 ,  H04W74/08 ,  H04W72/12 ,  H04J3/00

CPC classification number: H04W16/14 ,  H04J3/00 ,  H04J3/16 ,  H04L5/0053 ,  H04L5/0098 ,  H04W72/082 ,  H04W72/1215 ,  H04W74/0808 ,  H04W76/28

Abstract: Systems and methods for Carrier Sense Adaptive Transmission (CSAT) and related operations in unlicensed spectrum are disclosed to reduce interference between co-existing Radio Access Technologies (RATs). The parameters for a given CSAT communication scheme may be adapted dynamically based on received signals from a transceiver for a native RAT to be protected and an identification of how that RAT is utilizing a shared resource such as an unlicensed band. Other operations such as Discontinuous Reception (DRX) may be aligned with a CSAT Time Division Multiplexed (TDM) communication pattern by way of a DRX broadcast/multicast message. Different TDM communication patterns may be staggered in time across different frequencies. Channel selection for a co-existing RAT may also be configured to afford further protection to native RATs by preferring operation on secondary channels as opposed to primary channels.

Abstract translation: 公开了用于载波侦听自适应传输（CSAT）的系统和方法以及非许可频谱中的相关操作，以减少共存的无线电接入技术（RAT）之间的干扰。 给定CSAT通信方案的参数可以基于来自用于要保护的本机RAT的收发器的接收信号而动态地适配，以及该RAT如何利用诸如非许可频带之类的共享资源的标识。 诸如不连续接收（DRX）的其他操作可以通过DRX广播/多播消息与CSAT时分多路复用（TDM）通信模式对准。 不同的TDM通信模式可能在不同频率的时间上交错。 用于共存的RAT的信道选择还可以被配置为通过优选在次要信道上而不是主要信道来进行对本机RAT的进一步保护。

公开(公告)号：US09433008B2

公开(公告)日：2016-08-30

申请号：US14275714

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Marc Walter Werner ,  Andrea Garavaglia ,  Patrick Stupar ,  Ahmed Kamel Sadek

IPC: H04W72/08 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W72/085 ,  H04W72/0453 ,  H04W84/12

Abstract: In an aspect, methods and apparatus of communication include detecting a channel reselection condition for triggering reselection from a current channel to a first potential channel. The methods and apparatus further include determining that a first timer value meets or exceeds a first timer threshold value based at least in part on detecting the channel reselection condition. Additionally, the methods and apparatus include selecting the first potential channel from a channel list when the first timer value meets or exceeds the first timer threshold value. In another aspect, methods and apparatus include detecting an initial channel selection condition for triggering selection of a first initial channel. The methods and apparatus further include forming a channel list including one or more channels based on one or more channel selection parameters. Additionally, the methods and apparatus include selecting the first initial channel from the channel list.

Abstract translation: 在一方面，通信的方法和装置包括检测用于触发从当前信道到第一潜在信道的重选的信道重选条件。 所述方法和装置还包括至少部分地基于检测到信道重选条件来确定第一定时器值满足或超过第一定时器阈值。 另外，所述方法和装置包括当第一定时器值满足或超过第一定时器阈值时从通道列表中选择第一潜在通道。 在另一方面，方法和装置包括检测用于触发第一初始信道选择的初始信道选择条件。 所述方法和装置还包括基于一个或多个信道选择参数形成包括一个或多个信道的信道列表。 另外，方法和装置包括从频道列表中选择第一初始信道。

公开(公告)号：US20160094997A1

公开(公告)日：2016-03-31

申请号：US14853186

申请日：2015-09-14

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  John Edward Smee ,  Tingfang Ji ,  Ahmed Kamel Sadek ,  Krishna Kiran Mukkavilli ,  Joseph Binamira Soriaga

IPC: H04W16/14

CPC classification number: H04W16/14 ,  H04W74/0808 ,  H04W84/042

Abstract: Shared spectrum operation is disclosed for sharing spectrum among multiple wireless deployments. Coordination procedures between and among 2nd and 3rd Tier deployments include the use of beacons transmitted by the 2nd Tier for clearing access to spectrum occupied by 3rd Tier users and multiple 3rd Tier deployments sharing resources using a group-listen before talk (LBT) protocol, rather than a per-node LBT protocol. The 2nd Tier beacon signals are transmitted to alert 3rd Tier users of their presence, which, upon detection, will leave the particular spectrum within a predetermined time. For the shared LBT protocol, the 3rd Tier deployments share the channel with each other through an LBT with random backoff, in which the start time of clear channel assessment (CCA) procedure and the random backoff values are synchronized among nodes of the same deployment.

Abstract translation: 公开了共享频谱操作，用于在多个无线部署之间共享频谱。 第二和第三层部署之间的协调程序包括使用第二层传输的信标，清除对第3层用户占用的频谱的访问，以及使用群聊聆听（LBT）协议共享资源的多个第3层部署 比每个节点的LBT协议。 发送第二层信标信号以警告第三层用户的存在，其在检测时将在预定时间内离开特定频谱。 对于共享LBT协议，第三层部署通过具有随机退避的LBT彼此共享信道，其中清除信道评估（CCA）过程的开始时间和随机退避值在同一部署的节点之间同步。

公开(公告)号：US12200683B2

公开(公告)日：2025-01-14

申请号：US18194962

申请日：2023-04-03

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Ahmed Kamel Sadek ,  Tamer Kadous

IPC: H04W72/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1822 ,  H04L5/00 ,  H04L27/26 ,  H04W72/12 ,  H04W72/1268 ,  H04W72/21 ,  H04W74/00 ,  H04W28/06 ,  H04W72/23 ,  H04W74/0808

Abstract: Techniques for autonomous uplink (AUL) transmissions are provided that allow for efficient use of shared radio frequency spectrum band resources. A user equipment (UE) may determine a duration of an AUL transmission and modify an uplink waveform or provide an indication to a base station of one or more channel resources that may be available for base station transmissions, in order to more fully utilize shared radio frequency spectrum band resources within a maximum channel occupancy time (MCOT). A base station may activate or deactivate AUL transmissions through downlink control information (DCI) transmitted to the UE. A UE and base station may exchange various other control information to provide relatively efficient autonomous uplink transmissions and use of the shared radio frequency spectrum band resources.

公开(公告)号：US20240362889A1

公开(公告)日：2024-10-31

申请号：US18309464

申请日：2023-04-28

Applicant: QUALCOMM Incorporated

Inventor： Amin Ansari ,  Mandar Narsinh Kulkarni ,  Ahmed Kamel Sadek

IPC: G06V10/46 ,  G06T7/246 ,  G06T7/50 ,  G06T7/70 ,  G06V20/58

CPC classification number: G06V10/46 ,  G06T7/248 ,  G06T7/50 ,  G06T7/70 ,  G06V20/58

Abstract: An example device for processing image data includes a memory configured to store image data; and one or more processors implemented in circuitry and configured to: determine a set of keypoints representing objects in an image of the image data captured by a camera of a vehicle; determine depth values for the objects in the image; determine positions of the objects relative to the vehicle using the set of keypoints and the depth values; and at least partially control operation of the vehicle according to the positions of the objects. For example, the depth values may represent descriptors for the keypoints or be used to determine the descriptors for the keypoints.

公开(公告)号：US11874670B2

公开(公告)日：2024-01-16

申请号：US16816904

申请日：2020-03-12

Applicant: QUALCOMM Incorporated

Inventor： Dan Vassilovski ,  Hong Cheng ,  Zhibin Wu ,  Shailesh Patil ,  Richard Hovey ,  Ahmed Kamel Sadek

IPC: G05D1/02 ,  G08G1/09

CPC classification number: G05D1/0285 ,  G05D1/0212 ,  G08G1/093 ,  G05D1/027 ,  G05D1/0238 ,  G05D1/0246 ,  G05D1/0257 ,  G05D1/0274 ,  G05D1/0278 ,  G05D2201/0212 ,  G05D2201/0213

Abstract: Techniques disclosed provide for enhanced V2X communications by defining information Elements (IE) for V2X messaging between V2X entities. For a transmitting vehicle that sends a V2X message to a receiving vehicle, these IEs are indicative of a detected vehicle model type detected by the transmitting vehicle of a detected vehicle; a pitch rate of the transmitting vehicle, a detected vehicle, or a detected object; a roll rate of the transmitting vehicle, a detected vehicle, or a detected object; a yaw rate of a detected vehicle, or a detected object; a pitch rate confidence; a roll rate confidence; an indication of whether a rear brake light of a detected vehicle is on; or an indication of whether a turning signal of a detected vehicle is on; or any combination thereof. With this information, the receiving vehicle is able to make more intelligent maneuvers than otherwise available through traditional V2X messaging.

公开(公告)号：US11256964B2

公开(公告)日：2022-02-22

申请号：US16599078

申请日：2019-10-10

Applicant: QUALCOMM Incorporated

Inventor： Kyle Jordan Brown ,  Mihir Jain ,  Ahmed Kamel Sadek

IPC: G06K9/62 ,  G06N3/08 ,  G06K9/46 ,  G06N7/00

Abstract: A method for predicting a future action of agents in a scene includes assigning a fidelity level to agents observed in the scene. The method also includes recursively predicting future actions of the agents by traversing the scene. A different forward prediction model is used at each recursion level. The method further includes controlling an action of an ego agent based on the predicted future actions of the agents.

公开(公告)号：US10979203B2

公开(公告)日：2021-04-13

申请号：US14475773

申请日：2014-09-03

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Yeliz Tokgoz ,  Mehmet Yavuz ,  Tamer Adel Kadous ,  Mingxi Fan ,  Nachiappan Valliappan

IPC: H04L5/00 ,  H04W56/00 ,  H04W88/10 ,  H04W72/12 ,  H04W16/14

Abstract: Disclosed are systems and methods for selecting an operating channel for a cellular network to reduce interference to a wireless local area network (WLAN) operated by a small cell comprising a WLAN access point and a cellular network modem. The small cell performs a channel scan of available channels, determines whether or not there is a clean channel to be the operating channel for the cellular network based on the channel scan, wherein a clean channel comprises a channel that interferes with the WLAN less than a WLAN interference threshold, and selects the clean channel as the operating channel for the cellular network based on the clean channel being available or turns off the cellular network based on no clean channel being available.

公开(公告)号：US10750506B2

公开(公告)日：2020-08-18

申请号：US16721623

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan Valliappan ,  Ahmed Kamel Sadek ,  Peter Gaal ,  Tamer Kadous ,  Andrei Dragos Radulescu

IPC: H04W72/04 ,  H04L29/06 ,  H04L5/14 ,  H04L5/00 ,  H04W74/08

Abstract: Techniques for managing re-contention on a shared communication medium are disclosed. In order to facilitate re-contending for access to the communication medium, an access point may adjust one or more uplink transmission parameters associated with a triggering condition for invoking a contention timer. In addition or as an alternative, the access point may mute transmission on the communication medium during one or more symbol periods designated for transmission. In addition or as an alternative, the access point may configure a timing advance to create a re-contention gap.

公开(公告)号：US10602527B2

公开(公告)日：2020-03-24

申请号：US14687411

申请日：2015-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ping Xia ,  Ahmed Kamel Sadek ,  Nachiappan Valliappan

IPC: H04W72/08 ,  H04W24/08 ,  H04J3/16 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W84/04 ,  H04W88/10

Abstract: Techniques for channel selection and related operations in a shared spectrum environment are disclosed. In one example, a channel selector or the like may be used to select one of a number of available channels as an operating channel based on a comparison of cost functions for each of the available channels, with the cost functions being based on separate utility and penalty metrics. In another example, a channel scanner or the like may be used to trigger a channel scan in response to a channel quality metric indicating poor service for a threshold number or proportion of access terminals. In another example, an operating mode controller may be used to trigger a Time Division Multiplexing (TDM) mode on an operating channel in response to a utilization metric being above a threshold. The TDM mode may cycle operation between activated and deactivated periods in accordance with a TDM communication pattern.