公开(公告)号：US20170078894A1

公开(公告)日：2017-03-16

申请号：US14852515

申请日：2015-09-12

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Akula Aneesh REDDY ,  Ahmed Kamel SADEK ,  Tamer Adel KADOUS

IPC: H04W24/02 ,  H04L12/26 ,  H04W72/08

CPC classification number: H04W24/02 ,  H04L43/16 ,  H04W16/14 ,  H04W72/082 ,  H04W88/10

Abstract: Techniques for channel selection in a shared communication medium are disclosed. A communication apparatus may include one or more transceivers, a processor, and memory coupled to the processor and configured to store data and/or instructions. The one or more transceivers may be configured to monitor signaling on a plurality of available channels associated with a communication medium. The processor may be configured to determine an interference level for each of the plurality of available channels based on the monitored signaling, determine that the interference level for each of the plurality of available channels is greater than a first threshold, determine whether a triggering condition is met, and select the first channel of the plurality of channels as an operating channel for a primary radio access technology based on the triggering condition being met, the first channel having an interference level that is greater than a second threshold.

Abstract translation: 公开了用于共享通信介质中的信道选择的技术。 通信设备可以包括一个或多个收发器，处理器和耦合到处理器并被配置为存储数据和/或指令的存储器。 一个或多个收发器可以被配置为监视与通信介质相关联的多个可用信道上的信令。 处理器可以被配置为基于所监测的信令来确定多个可用信道中的每一个的干扰电平，确定多个可用信道中的每一个的干扰电平大于第一阈值，确定触发条件是否为 并且基于满足的触发条件选择多个信道中的第一信道作为主无线电接入技术的操作信道，第一信道的干扰电平大于第二阈值。

公开(公告)号：US20170064729A1

公开(公告)日：2017-03-02

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 ,  H04L5/14 ,  H04W72/04 ,  H04W16/14 ,  H04L5/00

CPC classification number: H04W72/1247 ,  H04L5/0048 ,  H04L5/14 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0833 ,  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.

Abstract translation: 公开了用于管理对共享通信介质的访问的技术。 调度许可可以被发送到用于不同资源集合的不同的接入终端，用于在通信介质上进行上行链路传输。 一系列重新争用的差距可能被安排在不同资源集合之内或之间的接入终端争用。 通信介质上的上行链路和下行链路传输可能在每一个重新争用间隙的每一个期间被静音。 此外，接入终端可以接收向通信介质分配一组资源以进行上行链路传输的调度许可，并且基于调度许可来争取接入通信介质。 接入终端然后可以基于竞争选择性地在所分配的一组资源上发送上行链路业务。

公开(公告)号：US20170055285A1

公开(公告)日：2017-02-23

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

CPC classification number: H04W74/08 ,  H04L5/14 ,  H04W16/14 ,  H04W74/085

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：US20170013627A1

公开(公告)日：2017-01-12

申请号：US14793564

申请日：2015-07-07

Applicant: QUALCOMM Incorporated

Inventor： Suhas MITRA ,  Ahmed Kamel SADEK

IPC: H04W72/08 ,  H04W8/00

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.

Abstract translation: 公开了用于管理通信的技术。 管理可以包括例如监视与第一无线电接入技术（RAT）相关联的下行链路传输的共享信道和与第一RAT相关联的上行链路传输，识别与共享信道上的下行链路传输相关联的第一组节点标识符 以及与所述共享信道上的上行链路传输相关联的第二组节点标识符，以及基于所述第一组节点标识符和所述第二组节点标识符来检测在所述共享信道上操作的隐藏节点。

公开(公告)号：US20150373582A1

公开(公告)日：2015-12-24

申请号：US14471840

申请日：2014-08-28

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Kiran SOMASUNDARAM ,  Ahmed Kamel SADEK

IPC: H04W28/08 ,  H04W16/14

CPC classification number: H04W28/08 ,  H04W16/14 ,  H04W28/20 ,  H04W72/082 ,  H04W72/085 ,  H04W72/1215 ,  H04W74/0808

Abstract: Systems and methods for dynamic bandwidth management for load-based equipment in unlicensed spectrum are disclosed. In an aspect, the disclosure provides a method for dynamic bandwidth management. The method includes obtaining training data by monitoring a plurality of channels in an unlicensed spectrum during a training period. The method further includes determining that at least a first channel of the plurality of channels is available for a transmission. The method also includes determining, based on the training data, whether to wait for an additional channel of the plurality of channels to become available for the transmission. Determining whether to wait may be based on either training data including probabilities that no additional channel is to become available within a transmission opportunity or a machine learning classification of a current state of the backoff counters based on training data including samples of previous states of backoff counters.

Abstract translation: 公开了用于非许可频谱中基于负载的设备的动态带宽管理的系统和方法。 在一方面，本公开提供了一种用于动态带宽管理的方法。 该方法包括通过在训练期间监视非许可频谱中的多个频道来获得训练数据。 该方法还包括确定多个信道中的至少第一信道可用于传输。 该方法还包括基于训练数据确定是否等待多个信道的附加信道变得可用于传输。 确定是否等待可以基于训练数据，包括在传输机会内没有附加信道将变得可用的概率的训练数据或基于包括退避计数器的先前状态的样本的训练数据的退避计数器的当前状态的机器学习分类 。

公开(公告)号：US20150311923A1

公开(公告)日：2015-10-29

申请号：US14491797

申请日：2014-09-19

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK

IPC: H04B1/00 ,  H04W16/14

CPC classification number: H04W16/14 ,  H04W88/10

Abstract: Systems and methods for differentiating between LTE and Wi-Fi signals based on distinguishing characteristics thereof are disclosed. A radio or receiver configured for processing signals associated with a first RAT can detect a signal associated with a second RAT, wherein the signals associated with the first RAT and the signal associated with the second RAT are received over a communications medium using an unlicensed frequency spectrum. One or more characteristics of the decoded signal can be detected or identified, such as a pilot or reference signal pattern, an interframe spacing, a cyclic prefix or guard interval structure, a bandwidth utilization, etc. The decoded signal can be determined as relating to the second RAT based at least in part on determining that the one or more characteristics correspond to the second RAT.

Abstract translation: 公开了基于区分特征的用于区分LTE和Wi-Fi信号的系统和方法。 配置用于处理与第一RAT相关联的信号的无线电或接收机可以检测与第二RAT相关联的信号，其中与第一RAT相关联的信号和与第二RAT相关联的信号通过通信介质使用未许可频谱 。 可以检测或识别解码信号的一个或多个特性，例如导频或参考信号模式，帧间间隔，循环前缀或保护间隔结构，带宽利用等。解码信号可以被确定为与 所述第二RAT至少部分地基于确定所述一个或多个特性对应于所述第二RAT。

公开(公告)号：US20150305040A1

公开(公告)日：2015-10-22

申请号：US14687600

申请日：2015-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ping XIA ,  Ahmed Kamel SADEK ,  Nachiappan VALLIAPPAN

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

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.

Abstract translation: 公开了在共享频谱环境中的信道选择和相关操作的技术。 在一个示例中，可以使用频道选择器等来基于用于每个可用频道的成本函数的比较来选择多个可用频道中的一个作为操作信道，成本函数基于单独的效用和 罚款指标。 在另一示例中，可以使用信道扫描器等来响应于指示针对接入终端的阈值数量或比例的不良服务的信道质量度量来触发信道扫描。 在另一示例中，可以使用操作模式控制器来响应于高于阈值的使用度量在操作信道上触发时分复用（TDM）模式。 TDM模式可以根据TDM通信模式在激活和去激活周期之间循环操作。

公开(公告)号：US20150305030A1

公开(公告)日：2015-10-22

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.

Abstract translation: 公开了通过无线电接入技术（RAT）之间共享的通信介质来管理操作的技术。 在一个示例中，可以将时分复用（TDM）通信模式的一个或多个参数设置为定义用于通过介质进行通信的激活周期和停用周期。 可以在用于通过介质进行通信的多个交织中选择第一交错，第一交错被保留给第一运营商。 在第一交错期间，可以根据TDM通信模式循环媒体上的传输，并且在为第二操作者预留的多个交错之间的第二隔行扫描期间停用。

公开(公告)号：US20150296413A1

公开(公告)日：2015-10-15

申请号：US14457416

申请日：2014-08-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel SADEK ,  Matthew Stuart Grob

IPC: H04W28/04 ,  H04W74/04 ,  H04B1/10

CPC classification number: H04B1/1027 ,  H04B1/525 ,  H04L1/00 ,  H04W16/14

Abstract: Certain aspects of the present disclosure relate to adapting transmitter configuration for efficient concurrent primary user detection through adaptive self-interference cancellation. A wireless transmitting device may schedule a transmission in a shared spectrum. The device may scan at least a portion of the shared spectrum during the transmission to receive a signal. Interference caused by the transmission may he cancelled from the received signal using self-interference cancellation circuitry. The device may determine whether the received signal indicates usage by a primary user of the shared spectrum. In an aspect, the transmission may be a SISO transmission. In another aspect, carrier aggregation may be used for the transmission and a potential carrier may be subject to primary user detection. The device may determine a self-interference cancellation complexity for a combination of carriers including the potential carrier, and may select one or more carriers for aggregation based on the self-interference cancellation complexity.

Abstract translation: 本公开的某些方面涉及通过自适应自干扰消除来适配用于有效并发主用户检测的发射机配置。 无线发射设备可以在共享频谱中调度传输。 该装置可以在传输期间扫描共享频谱的至少一部分以接收信号。 可以使用自干扰消除电路从发送的信号中消除干扰。 设备可以确定接收到的信号是否指示主用户对共享频谱的使用。 在一方面，传输可以是SISO传输。 在另一方面，可以将载波聚合用于传输，并且潜在载波可能经受主用户检测。 该装置可以确定包括潜在载波的载波的组合的自干扰消除复杂度，并且可以基于自干扰消除复杂度来选择用于聚合的一个或多个载波。

公开(公告)号：US20150296384A1

公开(公告)日：2015-10-15

申请号：US14597537

申请日：2015-01-15

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel SADEK

IPC: H04W16/14 ,  H04W72/08

CPC classification number: H04W16/14 ,  H04W72/1215 ,  H04W72/1252 ,  H04W74/0808 ,  H04W88/10

Abstract: Techniques for communication management between Radio Access Technologies (RATs) sharing operating spectrum in an unlicensed band of radio frequencies are disclosed. Interference may be mitigated by, for example, receiving signaling via a resource. A first RAT may be used to receive the signaling. Based on the received signaling, utilization of the resource associated with the first RAT may be identified. The identified utilization of the resource may be classified based on an attribute associated with the received signaling and a plurality of thresholds associated with the attribute. The plurality of thresholds may define different classes of utilization. Communication by a second RAT over the resource may be adapted based on the classified utilization of the resource.

Abstract translation: 公开了在无线电频率的非授权频带中共享操作频谱的无线电接入技术（RAT）之间的通信管理技术。 干扰可以通过例如经由资源接收信令来减轻。 可以使用第一RAT来接收信令。 基于接收到的信令，可以识别与第一RAT相关联的资源的利用。 可以基于与所接收到的信令相关联的属性和与该属性相关联的多个阈值来分类资源的所识别的利用。 多个阈值可以定义不同的利用类别。 可以基于资源的分类利用来适应通过资源的第二RAT的通信。