公开(公告)号：US11032718B2

公开(公告)日：2021-06-08

申请号：US15878056

申请日：2018-01-23

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Tamer Adel Kadous ,  Tao Luo

IPC: H04W16/28 ,  H04W64/00 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0404 ,  H04M15/00 ,  H04W4/24

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for optimizing millimeter wave beam-searching. In certain aspects, a method for use by a wireless communications device includes determining a usage scenario of the wireless device based on input performing a beam search to maintain or establish a communication link with one or more other wireless devices, wherein one or more beams are prioritized or de-prioritized during the beam search based on the usage scenario.

公开(公告)号：US10993151B2

公开(公告)日：2021-04-27

申请号：US15526741

申请日：2015-11-12

Applicant: QUALCOMM Incorporated ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous ,  Peng Cheng ,  Nachiappan Valliappan ,  Mohammad Naghshvar

Inventor： Ahmed Kamel Sadek ,  Tamer Adel Kadous ,  Peng Cheng ,  Nachiappan Valliappan ,  Mohammad Naghshvar

IPC: H04W36/00 ,  H04L1/18 ,  H04W72/04 ,  H04W52/02 ,  H04W28/18 ,  H04L1/00 ,  H04L5/00 ,  H04W88/06 ,  H04W72/00

Abstract: Techniques for co-existence between wireless Radio Access Technologies (RATs) are disclosed. During an active period of a Discontinuous Transmission (DTX) communication pattern, a first signal may be transmitted during a first subframe and a second signal may be transmitted during a second subframe, while during an inactive period the first signal may be transmitted during the first subframe and the second signal may be omitted during the second subframe. Retransmission of one or more packets may take place over a subset of less than all retransmission opportunities based on the DTX communication pattern. A Secondary Cell (SCell) may be reconfigured as the Primary Cell (PCell) and the PCell may be reconfigured as the SCell for one or more access terminals based on a load balancing condition or a channel selection condition.

公开(公告)号：US10542541B2

公开(公告)日：2020-01-21

申请号：US15240750

申请日：2016-08-18

Applicant: QUALCOMM Incorporated

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

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

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：US10375711B2

公开(公告)日：2019-08-06

申请号：US14078508

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Mehmet Yavuz ,  Tamer Adel Kadous

IPC: H04W72/12 ,  H04W16/14 ,  H04W88/10 ,  H04W24/02 ,  H04W84/04

Abstract: Described herein are techniques for reducing interference to non-cellular communications on an unlicensed band by a network entity sending/receiving cellular communications on the unlicensed band. For example, the technique may involve operating in a first mode using a first radio access technology (RAT1), and collecting interference measurements for interference to or from at least one mobile device while in the first mode. The technique may also involve switching to a second mode and using a second radio access technology (RAT2), and using the interference measurements from the first mode to minimize interference caused or experienced by the network entity in the second mode.

公开(公告)号：US10264541B2

公开(公告)日：2019-04-16

申请号：US15421080

申请日：2017-01-31

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo ,  Andrei Dragos Radulescu ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04L12/28 ,  H04W56/00 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W24/02 ,  H04W74/08 ,  H04W74/02 ,  H04J1/16 ,  H04W88/08

Abstract: Techniques for intra- and inter-operator coordination on a shared communication medium are disclosed. A central coordination server may send an operating mode information message to coordinate operation of different points on the communication medium. An access point may receive such an operating mode information message and adjust one or more communication parameters. An access point may determine a level of timing synchronization with neighboring access points and send a synchronization advertisement message to an access terminal. An access terminal may receive a synchronization advertisement message and perform one or more measurements of the neighboring access points.

公开(公告)号：US10219235B2

公开(公告)日：2019-02-26

申请号：US15421146

申请日：2017-01-31

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo ,  Andrei Dragos Radulescu ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04W56/00 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W24/02 ,  H04W74/08 ,  H04W74/02 ,  H04W88/08

Abstract: Techniques for intra- and inter-operator coordination on a shared communication medium are disclosed. A central coordination server may send an operating mode information message to coordinate operation of different points on the communication medium. An access point may receive such an operating mode information message and adjust one or more communication parameters. An access point may determine a level of timing synchronization with neighboring access points and send a synchronization advertisement message to an access terminal. An access terminal may receive a synchronization advertisement message and perform one or more measurements of the neighboring access points.

公开(公告)号：US20180241494A1

公开(公告)日：2018-08-23

申请号：US15898981

申请日：2018-02-19

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Chirag Sureshbhai Patel ,  Tao Luo ,  Tamer Adel Kadous

IPC: H04J11/00 ,  H04L5/00 ,  H04W48/16

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure bursts of synchronization signal (SS) blocks for discovery reference signal (DRS) transmission. The base station may transmit an SS block set in an SS burst according to a beam sweep pattern, which may be repeated for a subsequent SS block set. The base station may configure a number of SS block sets in each SS burst and transmit each SS block in an SS block set using a different beam. Each SS burst may be transmitted according to a different beam sweep pattern and the base station may repeat transmission of SS bursts according to a DRS repetition periodicity. A user equipment (UE) may sweep through antenna sub-arrays during reception of an SS burst to determine a suitable sub-array for communication.

公开(公告)号：US09750014B2

公开(公告)日：2017-08-29

申请号：US14692224

申请日：2015-04-21

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Akula Aneesh Reddy ,  Nachiappan Valliappan ,  Ping Xia ,  Mohammad Naghshvar ,  Tamer Adel Kadous ,  Mingxi Fan

IPC: H04W72/04 ,  H04W16/14

CPC classification number: H04W72/0446 ,  H04W16/14

Abstract: Techniques for managing operation over a communication medium shared between Radio Access Technologies (RATs) are disclosed. In one example, one or more parameters of a Time Division Multiplexing (TDM) communication pattern may be set to define activated periods and deactivated periods for communication over the medium. A first interlace may be selected among a plurality of interlaces for communication over the medium, the first interlace being reserved for a first operator. During the first interlace, transmission over the medium may be cycled in accordance with the TDM communication pattern, and deactivated during a second interlace among the plurality of interlaces that is reserved for a second operator.

公开(公告)号：US20150319702A1

公开(公告)日：2015-11-05

申请号：US14268173

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Vinay Chande ,  Liwen Yu ,  Tamer Adel Kadous

IPC: H04W52/14

CPC classification number: H04W52/10 ,  H04W52/146 ,  H04W52/243

Abstract: A method or apparatus for configuring OLPC parameters for uplink communications in a cellular wireless network includes determining an estimated number of neighbor cells deployed within radio range of a cell, and configuring OLPC parameters for uplink communications, based on the estimated number of neighbor cells. Determining the estimated number of neighbor cells may include measuring respective signal strengths of the neighbor cells using network listen functionality. At least two OLPC intermediate parameters Po and α may be selected from a data table, based on the estimated number of neighbor cells. A path loss statistic may be determined, based on UE measurement reports including path losses of UEs to itself and other cells. The OLPC parameters may be selected based on the path loss statistic and Po and α, and/or adapted based on at least one of UE power headroom reports or overload indicators received from the neighbor cells.

Abstract translation: 用于配置蜂窝无线网络中的上行链路通信的OLPC参数的方法或装置包括基于估计的相邻小区数来确定在小区的无线电范围内部署的相邻小区的估计数量，以及配置用于上行链路通信的OLPC参数。 确定相邻小区的估计数量可以包括使用网络侦听功能测量相邻小区的相应信号强度。 可以基于估计的相邻小区数从数据表中选择至少两个OLPC中间参数Po和α。 基于UE测量报告，包括UE自身和其他小区的路径损耗，可以确定路径损耗统计量。 可以基于路径损耗统计量和Po和α来选择OLPC参数，和/或基于从相邻小区接收的UE功率余量报告或过载指示符中的至少一个进行调整。

公开(公告)号：US20130121189A1

公开(公告)日：2013-05-16

申请号：US13672458

申请日：2012-11-08

Applicant: Qualcomm Incorporated

Inventor： Kapil Bhattad ,  Dhananjay Ashok Gore ,  Tamer Adel Kadous ,  Ashok Mantravadi ,  Ahmed Sadek ,  Raj Kumar

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04B7/2656 ,  H04L5/1484 ,  H04W16/14 ,  H04W72/12

Abstract: When communications of a single radio access technology (RAT), or different radio access technologies in a proximate communication spectrum are operating at the same time, potential interference between devices may occur. To reduce the interference, the time division duplex (TDD) configuration of one or more conflicting device may be altered. For example, at the edge of a communication region, TDD configurations used by edge base stations to communicate with mobile devices may be set to reduce interference. As another example, communications of a first device may be altered so the first device schedules uplink communications when a second device also has uplink communications scheduled. Other configurations may also be implemented.

Abstract translation: 当单个无线电接入技术（RAT）或邻近通信频谱中的不同无线电接入技术的通信同时工作时，可能发生设备之间的潜在干扰。 为了减少干扰，可以改变一个或多个冲突设备的时分双工（TDD）配置。 例如，在通信区域的边缘，可以设置边缘基站用于与移动设备通信的TDD配置，以减少干扰。 作为另一示例，可以改变第一设备的通信，使得当第二设备还具有调度的上行链路通信时，第一设备调度上行链路通信。 也可以实现其他配置。