公开(公告)号：US20180063799A1

公开(公告)日：2018-03-01

申请号：US15460137

申请日：2017-03-15

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Naga Bhushan ,  Peter Black ,  Michael Mingxi Fan ,  Yongbin Wei

IPC: H04W52/36 ,  H04W74/08 ,  H04W52/34 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may receive stress beacons on a channel. Each stress beacon may include an indication of an allowable interference level for a corresponding wireless node that transmitted the stress beacon on the channel. The wireless node may update a backoff window for the channel based on the allowable interference levels indicated in the stress beacons.

公开(公告)号：US09814089B2

公开(公告)日：2017-11-07

申请号：US14919091

申请日：2015-10-21

Applicant: QUALCOMM Incorporated

Inventor： Raja Sekhar Bachu ,  Rizwan Ehtesham Ahmed ,  Prashanth Haridas Hande ,  Ahmed Kamel Sadek

IPC: H04W4/00 ,  H04W76/04 ,  H04W76/00 ,  H04W16/14 ,  H04W84/04 ,  H04W84/12

CPC classification number: H04W76/28 ,  H04W16/14 ,  H04W76/00 ,  H04W84/045 ,  H04W84/12

Abstract: Techniques for co-existence on a shared communication medium are disclosed. To foster co-existence, operation of a first Radio Access Technology (RAT) may be cycled between active periods and inactive periods of transmission, on a communication medium shared with a second RAT, in accordance with a Discontinuous Transmission (DTX) communication pattern. One or more cycling parameters of the DTX communication pattern may be set based on a frame structure associated with the first RAT. Transmission may proceed over the communication medium in accordance with the first RAT and the one or more cycling parameters of the DTX communication pattern.

公开(公告)号：US09806836B2

公开(公告)日：2017-10-31

申请号：US14711384

申请日：2015-05-13

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Nachiappan Valliappan

IPC: H04J1/16 ,  H04J3/16 ,  H04W72/12 ,  H04J3/14 ,  H04L5/00 ,  H04W74/08 ,  H04W88/10

CPC classification number: H04J3/1694 ,  H04J3/14 ,  H04L5/0007 ,  H04W72/1215 ,  H04W74/0808 ,  H04W88/10

Abstract: Techniques for co-existence between wireless Radio Access Technologies (RATs) and related operations in shared spectrum are disclosed. Operation on a communication medium shared between RATs may be managed by a transceiver configured to operate in accordance with a first RAT and to monitor the medium for signaling associated with a second RAT. A medium analyzer may be configured to determine one or more Time Division Multiplexing (TDM) parameters of a TDM communication pattern associated with the second RAT based on the monitored signaling. A transmission controller may be configured to set one or more transmission parameters for the first RAT based on the determined one or more TDM parameters. The transceiver may be further configured to transmit on the medium in accordance with the one or more transmission parameters.

公开(公告)号：US09775048B2

公开(公告)日：2017-09-26

申请号：US14486778

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Akula Aneesh Reddy ,  Nachiappan Valliappan ,  Ahmed Kamel Sadek ,  Tingfang Ji

IPC: H04W80/04 ,  H04W16/14

CPC classification number: H04W16/14 ,  H04L5/0098

Abstract: The present disclosure presents a method and an apparatus for improving performance of a user equipment (UE) operating in unlicensed spectrum. For example, the disclosure presents a method for receiving, at the UE, a secondary component carrier (SCC) update from a small cell. The example method further includes tuning the UE to a second SCC in response to receiving the update. The update is received at the UE when the small cell operating on a first radio access technology (RAT) determines that a channel associated with a first SCC of the small cell is also in use by another entity operating on a second RAT. As such, improved performance of a user equipment (UE) operating in an unlicensed spectrum may be achieved.

公开(公告)号：US09730234B2

公开(公告)日：2017-08-08

申请号：US14793564

申请日：2015-07-07

Applicant: QUALCOMM Incorporated

Inventor： Suhas Mitra ,  Ahmed Kamel Sadek

IPC: H04L12/26 ,  H04W72/08 ,  H04W8/00 ,  H04W16/14

CPC classification number: H04W72/082 ,  H04W8/005 ,  H04W16/14 ,  H04W72/085

Abstract: Techniques for managing communications are disclosed. The management may comprise, for example, monitoring a shared channel for downlink transmissions associated with a first Radio Access Technologies (RAT) and uplink transmissions associated with the first RAT, identifying a first set of node identifiers associated with the downlink transmissions on the shared channel and a second set of node identifiers associated with the uplink transmissions on the shared channel, and detecting a hidden node operating on the shared channel based on the first set of node identifiers and the second set of node identifiers.

公开(公告)号：US09635559B2

公开(公告)日：2017-04-25

申请号：US14457762

申请日：2014-08-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek

IPC: H04W16/18 ,  H04W16/08 ,  H04W16/14 ,  H04W84/04

CPC classification number: H04W16/08 ,  H04W16/14 ,  H04W84/045

Abstract: Systems and methods for interference mitigation in unlicensed spectrum are disclosed. In an aspect, the methods and apparatus may include requesting, by a first network entity, one or more user equipments (UEs) to perform a plurality of frequency measurements, wherein the plurality of frequency measurements comprises measurements in a licensed spectrum and measurements in an unlicensed spectrum. Further, the methods and apparatus may include calculating a power back-off value based on the plurality of frequency measurements. Moreover, the methods and apparatus may include adjusting a cell coverage based on the power back-off value such that the one or more UEs are outside the cell coverage.

公开(公告)号：US09538395B2

公开(公告)日：2017-01-03

申请号：US13842271

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Mehmet Yavuz

IPC: G01R31/08 ,  H04W4/00 ,  H04W24/02 ,  H04L1/00 ,  H04L1/18

CPC classification number: H04W24/02 ,  H04L1/0006 ,  H04L1/0021 ,  H04L1/1887

Abstract: Techniques are provided for utilizing selected inter-frame spacing, such as reduced inter-frame spacing (RIFS) or short inter-frame spacing (SIFS) to avoid failed data transmissions in a Wi-Fi network or the like. For example, there is provided a method, operable by a transmitter node or entity, such as, for example, an access point (AP), that may involve sending a data transmission in a data aggregation mode, the data transmission comprising aggregated MAC protocol data units (A-MPDUs). The method may involve monitoring for and detecting potential short interference bursts in the network. The method may involve re-sending the data transmission in a data bursting mode, the data transmission comprising back-to-back data packet bursts separated by a selected inter-frame spacing.

Abstract translation: 提供技术用于利用所选择的帧间间隔，例如减少的帧间间隔（RIFS）或短帧间间隔（SIFS），以避免Wi-Fi网络等中的数据传输失败。 例如，提供了一种可由发射机节点或实体（例如接入点（AP））操作的方法，其可以涉及以数据聚合模式发送数据传输，所述数据传输包括聚合的MAC协议 数据单元（A-MPDU）。 该方法可以涉及监测和检测网络中的潜在的短干扰突发。 该方法可以涉及以数据突发模式重新发送数据传输，数据传输包括由所选择的帧间间隔分开的背对背数据分组突发。

公开(公告)号：US20160345345A1

公开(公告)日：2016-11-24

申请号：US15154481

申请日：2016-05-13

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Hemanth Sampath ,  Tao Luo ,  Ahmed Kamel Sadek

IPC: H04W72/12 ,  H04W52/02 ,  H04W72/08 ,  H04L5/00 ,  H04W48/04 ,  H04W48/16

CPC classification number: H04W52/0216 ,  H04L5/0053 ,  H04W16/14 ,  H04W24/10 ,  H04W48/04 ,  H04W48/16 ,  H04W72/082 ,  H04W84/12 ,  H04W88/06 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/22

Abstract: Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method of facilitating coexistence of wireless local area network (WLAN) devices and long term evolution unlicensed (LTE-U) devices in a communication network comprising a wireless device capable of both WLAN and LTE-U communication includes detecting one or more LTE-U networks and associated communication characteristics. The method further includes generating a LTE-U measurement report indicative of the LTE-U communication characteristics. The method further includes transmitting the LTE-U measurement report to at least one WLAN device.

Abstract translation: 本公开的某些方面涉及无线通信的方法和装置。 在一个方面，一种促进无线局域网（WLAN）设备和长期演进非许可（LTE-U）设备在包括WLAN和LTE-U通信的无线设备的通信网络中的共存的方法包括检测一个或 更多的LTE-U网络和相关的通信特性。 该方法还包括生成表示LTE-U通信特性的LTE-U测量报告。 该方法还包括向至少一个WLAN设备发送LTE-U测量报告。

公开(公告)号：US09319901B2

公开(公告)日：2016-04-19

申请号：US14212560

申请日：2014-03-14

Applicant: QUALCOMM Incorporated

Inventor： Cong Shen ,  Farhad Meshkati ,  Ahmed Kamel Sadek

IPC: H04W36/00 ,  H04W24/02 ,  H04W72/12 ,  H04W88/10 ,  H04W84/04

CPC classification number: H04W24/02 ,  H04W72/1215 ,  H04W84/045 ,  H04W88/10

Abstract: Methods and apparatus for communication comprise selecting a first parameter value for a first RAT transmission-related parameter from a first set of selectable first parameter values and a second parameter value for a second RAT transmission-related parameter from a second set of selectable second parameter values based at least in part on a mapping function that maps between ones of the first set of selectable first parameter values for the first RAT transmission-related parameter and the second set of selectable second parameter values for the second RAT transmission-related parameter. Moreover, the methods and apparatus comprise communicating using at least one of the first parameter value of the first RAT transmission-related parameter for the first RAT and the second parameter value of the second RAT transmission-related parameter for the second RAT.

Abstract translation: 用于通信的方法和装置包括从第一组可选择的第一参数值选择第一RAT传输相关参数的第一参数值，以及从第二组可选择的第二参数值为第二RAT传输相关参数选择第二参数值 至少部分地基于映射功能，其映射第一RAT传输相关参数的第一组可选择的第一参数值中的一个，以及用于第二RAT传输相关参数的第二组可选择的第二参数值。 此外，所述方法和装置包括使用第一RAT的第一RAT传输相关参数的第一参数值和第二RAT的第二RAT传输相关参数的第二参数值中的至少一个进行通信。

公开(公告)号：US09100975B2

公开(公告)日：2015-08-04

申请号：US13957241

申请日：2013-08-01

Applicant: QUALCOMM Incorporated

Inventor： Arul Durai Murugan Palanivelu ,  Kapil Bhattad ,  Dhananjay Ashok Gore ,  Ashok Mantravadi ,  Ahmed Kamel Sadek

IPC: H04W72/00 ,  H04W72/12 ,  H04W52/02 ,  H04W88/10

CPC classification number: H04W72/12 ,  H04B1/0064 ,  H04W52/0235 ,  H04W72/1215 ,  H04W88/10 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: Certain aspects of the present disclosure relate to techniques for transmitting a clear to send (CTS)-to-self indication. According to certain aspects, a method for wireless communications by a wireless device is provided. The method generally includes scheduling a first antenna at the wireless device for communication using one of a first radio access technology (RAT) or a second RAT, scheduling one or more other antennas at the wireless device configured for communication using the first RAT, for communication using the second RAT in order to enable one of transmit or receive diversity on the second RAT or simultaneous communication on the first and second RATs, and transmitting an idle-mode indication to force he first RAT to an idle mode.

Abstract translation: 本公开的某些方面涉及用于发送明确发送（CTS）到自身指示的技术。 根据某些方面，提供了一种由无线设备进行无线通信的方法。 该方法通常包括在无线设备处调度第一天线以使用第一无线电接入技术（RAT）或第二RAT中的一个进行通信，在被配置为使用第一RAT进行通信的无线设备上调度一个或多个其他天线用于通信 使用第二RAT以便实现第二RAT上的发射或接收分集或第一RAT和第二RAT上的同时通信中的一个，并且发送空闲模式指示以迫使他的第一RAT进入空闲模式。