公开(公告)号：US10356816B2

公开(公告)日：2019-07-16

申请号：US15240584

申请日：2016-08-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W16/14 ,  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：US10334546B2

公开(公告)日：2019-06-25

申请号：US15250392

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Tao Luo ,  Ahmed Kamel Sadek ,  Nachiappan Valliappan ,  Chirag Sureshbhai Patel ,  Mingxi Fan ,  Tamer Adel Kadous

IPC: H04W56/00 ,  H04W16/14 ,  H04L5/00

Abstract: Techniques for synchronization on a shared communication medium are disclosed. An access point may select, for example, a common sequence, frequency, and time for a first synchronization signal that is coordinated with one or more other access points. The access point may then transmit the first synchronization signal in accordance with the common sequence, frequency, and time. An access terminal may receive, from an access point, a first synchronization signal having a first sequence and a second synchronization signal having a second sequence. The access terminal may then determine an offset in time between the first synchronization signal and the second synchronization signal, and determine a cell identifier group associated with the access point based on the offset.

公开(公告)号：US10299284B2

公开(公告)日：2019-05-21

申请号：US15250765

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Nachiappan Valliappan ,  Tamer Adel Kadous ,  Chirag Sureshbhai Patel ,  Tao Luo

IPC: H04W72/12 ,  H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14 ,  H04W74/08 ,  H04W84/12

Abstract: Techniques for managing access to a shared communication medium are disclosed. Scheduling grants may be sent to different access terminals for different sets of resources for uplink transmission on the communication medium. A series of re-contention gaps may be scheduled for access terminal contention within or between the different sets of resources. Uplink and downlink transmission on the communication medium may be silenced during each of the series of re-contention gaps. Moreover, an access terminal may receive a scheduling grant that allocates a set of resources to the access terminal for uplink transmission on a communication medium and contend for access to the communication medium based on the scheduling grant. The access terminal may then selectively transmit uplink traffic over the allocated set of resources based on the contending.

公开(公告)号：US10291379B2

公开(公告)日：2019-05-14

申请号：US15234991

申请日：2016-08-11

Applicant: QUALCOMM Incorporated

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

IPC: H04J3/00 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/14 ,  H04W74/08 ,  H04W16/14 ,  H04W48/00 ,  H04W72/04 ,  H04L1/12

Abstract: Techniques for managing contention on a shared communication medium are disclosed. Various techniques are provided to facilitate aspects such as reference signaling, downlink medium access, uplink medium access, resource reuse, channel structures, acknowledgment schemes, fairness, acquisition, random access, paging, mobility, inter-operator mitigation, and so on for a frame structure implemented on the shared communication medium.

公开(公告)号：US10091789B2

公开(公告)日：2018-10-02

申请号：US15240678

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 ,  H04L5/00 ,  H04W74/08 ,  H04L5/14 ,  H04L29/06

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：US20170093545A1

公开(公告)日：2017-03-30

申请号：US15249954

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Chirag Sureshbhai Patel ,  Ahmed Kamel Sadek ,  Nachiappan Valliappan ,  Tao Luo ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L5/001 ,  H04L5/0039 ,  H04L5/0094

Abstract: Techniques for communication are disclosed. A method may include selecting from a subframe two or more resource elements for control signaling, wherein the subframe includes a plurality of symbol periods and each symbol period includes a plurality of resource elements, wherein the selected two or more resource elements are associated with a concurrent symbol period, and transmitting a resource allocation message to an access terminal, wherein the resource allocation message indicates that the selected two or more resource elements are allocated for control signaling.

公开(公告)号：US09585156B2

公开(公告)日：2017-02-28

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 ,  H04L5/14 ,  H04W16/14 ,  H04W72/12 ,  H04B7/26

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。

公开(公告)号：US09253658B2

公开(公告)日：2016-02-02

申请号：US13951241

申请日：2013-07-25

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04W4/00 ,  H04W24/02 ,  H04W52/36 ,  H04J11/00 ,  H04W72/08 ,  H04W24/10 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04W24/02 ,  H04J11/0056 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/03898 ,  H04W24/10 ,  H04W52/367 ,  H04W72/082

Abstract: An interference management scheme may detect a level of uncoordinated interference and compare a detected uncoordinated interference level against an intra-RAT (radio access technology) interference. Intra-RAT interference management algorithms or intra-RAT interference solutions are not triggered/applied if the uncoordinated interference is dominant. Alternatively, intra-RAT interference management algorithms may be triggered if co-channel intra-RAT interference is dominant.

Abstract translation: 干扰管理方案可以检测不协调干扰的水平，并将检测到的未协调干扰电平与RAT内（无线电接入技术）干扰进行比较。 如果不协调的干扰占主导地位，则不会触发/应用RAT内干扰管理算法或RAT内干扰解。 或者，如果同频道RAT内干扰占优势，则可以触发RAT内干扰管理算法。

公开(公告)号：US20150282077A1

公开(公告)日：2015-10-01

申请号：US14229662

申请日：2014-03-28

Applicant: QUALCOMM Incorporated

Inventor： Mehmet Yavuz ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Vinay Chande

IPC: H04W52/02 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04W52/0212 ,  H04W52/0229 ,  H04W52/0238 ,  H04W52/0274 ,  H04W72/046 ,  H04W72/048 ,  H04W72/082 ,  H04W88/06 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

Abstract: Systems and methods are provided for optimizing resource usage by a network entity that detects a first channel condition for a first radio access technology (RAT) and a second channel condition for a second RAT. The network entity determines whether the first channel condition comprises a higher interference level than the second channel condition and also determines power consumption constraints. If the first channel condition comprises a higher interference level than the second channel condition, the network entity reassigns at least one antenna from the first RAT to the second RAT based at least in part on the power consumption constraints. In some embodiments, systems and methods are also provided for determining whether an access point serving an access terminal is a large cell base station or a small cell base station and determining a power management action for the access terminal.

Abstract translation: 提供了系统和方法，用于通过检测第一无线电接入技术（RAT）的第一信道条件和第二RAT的第二信道条件的网络实体来优化资源使用。 网络实体确定第一信道条件是否包括比第二信道条件更高的干扰电平，并且还确定功耗约束。 如果第一信道条件包括比第二信道条件更高的干扰电平，则网络实体至少部分地基于功率消耗约束，将至少一个天线从第一RAT重新分配到第二RAT。 在一些实施例中，还提供系统和方法，用于确定服务于接入终端的接入点是大小区基站还是小小区基站，并确定接入终端的功率管理动作。

公开(公告)号：US20140273884A1

公开(公告)日：2014-09-18

申请号：US13801881

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Ashok Mantravadi ,  Tamer Adel Kadous

IPC: H04B1/38

CPC classification number: H04B1/38 ,  H04B1/006 ,  H04B7/0413

Abstract: A UE with a limited number of antennas may support multiple radio access technologies (RATS). In some instances, the UE may configure a shared antenna for use by a wireless local area network (WLAN) radio access technology (RAT) or a cellular RAT. The UE may also allocate the shared antenna to the WLAN RAT when the cellular RAT is active based at least in part on an operating condition of the WLAN RAT and/or the cellular RAT.

Abstract translation: 具有有限数量天线的UE可以支持多种无线电接入技术（RATS）。 在一些情况下，UE可以配置用于由无线局域网（WLAN）无线电接入技术（RAT）或蜂窝RAT使用的共享天线。 至少部分地基于WLAN RAT和/或蜂窝RAT的操作条件，当蜂窝RAT有效时，UE还可以将共享天线分配给WLAN RAT。