公开(公告)号：US20180054762A1

公开(公告)日：2018-02-22

申请号：US15260233

申请日：2016-09-08

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel KADOUS ,  Nachiappan VALLIAPPAN

IPC: H04W28/26 ,  H04W16/16 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W28/26 ,  H04L47/72 ,  H04L47/821 ,  H04L65/10 ,  H04W16/14 ,  H04W16/16 ,  H04W74/002 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/042 ,  H04W88/023

Abstract: Techniques for managing channel reservation on a shared communication medium are disclosed. An access point or an access terminal contending for access to a communication medium shared between a first Radio Access Technology (RAT) and a second RAT, for example, may encode a first portion of a channel reservation message defined by the first RAT with a transmission opportunity duration associated with the second RAT and also encode a second portion of the channel reservation message with the transmission opportunity duration. The access point or the access terminal may then transmit, over the communication medium, the channel reservation message including the first and second portions to reserve the communication medium based on the contending.

公开(公告)号：US20160128130A1

公开(公告)日：2016-05-05

申请号：US14926389

申请日：2015-10-29

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel SADEK ,  Tamer Adel KADOUS ,  Nachiappan VALLIAPPAN

IPC: H04W76/04 ,  H04L12/26 ,  H04B17/309

CPC classification number: H04W76/28 ,  H04B17/309 ,  H04L43/0882 ,  H04L43/16 ,  H04W16/14 ,  H04W88/06

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. An identifier may be selected for association with the first RAT. A channel reservation message associated with the second RAT may then be transmitted, over the communication medium, to reserve the communication medium for one of the active periods, the channel reservation message including the identifier.

Abstract translation: 公开了在共享通信介质上共存的技术。 为了促进共存，根据不连续传输（DTX）通信模式，第一无线电接入技术（RAT）的操作可以在与第二RAT共享的通信介质上的活动周期和无效传输周期之间循环。 可以选择标识符以与第一RAT相关联。 然后可以通过通信介质发送与第二RAT相关联的信道预约消息，以保留用于活动期间之一的通信介质，信道预留消息包括标识符。

公开(公告)号：US20150289201A1

公开(公告)日：2015-10-08

申请号：US14247139

申请日：2014-04-07

Applicant: QUALCOMM Incorporated

Inventor： Patrick STUPAR ,  Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK ,  Andrea GARAVAGLIA ,  Andreas Maximilian SCHENK ,  Marc Walter WERNER

IPC: H04W48/20 ,  H04W8/00

CPC classification number: H04W48/20 ,  H04L43/12 ,  H04W40/244 ,  H04W48/06 ,  H04W48/14 ,  H04W48/16 ,  H04W88/08

Abstract: The present disclosure presents a method and apparatus for identifying an access point (AP) for selection by an access terminal (AT). For example, the method may include receiving a probe request by one or more APs from an AT, wherein the probe request is broadcasted by the AT to the one or more APs, generating load information and Received Signal Strength Indicator (RSSI) values of the probe request at the one or more APs, identifying an AP of the one or more APs for selection by the AT, wherein the AP for selection by the AT is identified by the one or more APs based at least on the load information and RSSI values generated at the one or more APs, and transmitting information of an AP identified by the one or more APs to the AT. As such, an improved mechanism for selecting an access point may be achieved.

Abstract translation: 本公开提供了一种用于识别由接入终端（AT）选择的接入点（AP）的方法和装置。 例如，所述方法可以包括从AT接收一个或多个AP的探测请求，其中，所述探测请求由所述AT广播到所述一个或多个AP，生成负载信息和所述接收信号强度指示符（RSSI）值 在一个或多个AP处的探测请求，标识用于由AT选择的一个或多个AP的AP，其中由AT选择的AP至少基于负载信息和RSSI值由一个或多个AP识别 在所述一个或多个AP处产生的，并且将由所述一个或多个AP识别的AP的信息发送到所述AT。 因此，可以实现用于选择接入点的改进的机制。

公开(公告)号：US20150163680A1

公开(公告)日：2015-06-11

申请号：US14192139

申请日：2014-02-27

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Tamer Adel KADOUS ,  Ahmed Kamel SADEK ,  Andrei Dragos RADULESCU

IPC: H04W16/14 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0073 ,  H04L27/0006 ,  H04W52/143 ,  H04W52/243 ,  H04W52/244 ,  H04W52/34 ,  H04W52/343 ,  H04W52/346 ,  H04W52/38 ,  H04W72/0453

Abstract: Apparatus and methods of wireless communications are described for determining one or more bands (e.g., guard bands in wireless local area networks (WLANs)) in unused portions of an unlicensed spectrum, positioning one or more carriers for cellular communication (e.g., long term evolution (LTE) or LTE advanced communication) in the one or more bands, and performing the cellular communication over the unlicensed spectrum using the one or more carriers. In some non-limiting example aspects, the cellular communication may be in a standalone mode and the one or more carriers may include a primary component carrier (PCC) that is positioned in a Wi-Fi guard band. In these non-limiting example aspects, the apparatus and methods may further include allocating one or more secondary component carriers (SCCs) in Wi-Fi guard bands or in Wi-Fi channels, where the one or more SCCs are opportunistically tuned or turned ON/OFF based on cell loading or backhaul constraints.

Abstract translation: 描述了无线通信的装置和方法，用于在非许可频谱的未使用部分中确定一个或多个频带（例如，无线局域网（WLAN）中的保护频带）），定位用于蜂窝通信的一个或多个载波（例如，长期演进 （LTE）或LTE高级通信），并且使用所述一个或多个载波在所述未许可频谱上执行所述蜂窝通信。 在一些非限制性示例方面，蜂窝通信可以处于独立模式，并且一个或多个载波可以包括位于Wi-Fi保护频带中的主分量载波（PCC）。 在这些非限制性示例方面中，装置和方法还可以包括在Wi-Fi保护频带或Wi-Fi信道中分配一个或多个辅助分量载波（SCC），其中一个或多个SCC被机会性地调谐或导通 / OFF基于单元格加载或回程约束。

公开(公告)号：US20170055291A1

公开(公告)日：2017-02-23

申请号：US15240476

申请日：2016-08-18

Applicant: QUALCOMM Incorporated

Inventor： Alexei GOROKHOV ,  Peter GAAL ,  Nachiappan VALLIAPPAN ,  Chirag PATEL ,  Ahmed SADEK ,  Brian BANISTER ,  Tao LUO ,  Tamer KADOUS

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

CPC classification number: H04W74/0816 ,  H04L5/005 ,  H04L5/14 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/002 ,  H04W84/12

Abstract: Techniques for reservation coordination on a shared communication medium are disclosed. An access point, for example, may contend for access to a communication medium, and transmit a channel reservation message in accordance with a first Radio Access Technology (RAT) to reserve the communication medium for a transmission opportunity (TXOP) duration based on the contending. The access point may then transmit, during the reserved TXOP duration, a reservation coordination signal in accordance with a second RAT to convey reservation coordination information associated with the reserved TXOP duration.

Abstract translation: 公开了在共享通信介质上进行预约协调的技术。 例如，接入点可以竞争访问通信介质，并且根据第一无线电接入技术（RAT）发送信道预留消息，以基于竞争的时间来为传输机会（TXOP）持续时间保留通信介质 。 接入点然后可以在保留的TXOP持续时间期间根据第二RAT发送预留协调信号，以传送与保留的TXOP持续时间相关联的预留协调信息。

公开(公告)号：US20170055259A1

公开(公告)日：2017-02-23

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 ,  H04L5/14 ,  H04L5/00 ,  H04L29/06

CPC classification number: H04W72/0453 ,  H04L5/00 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/14 ,  H04L5/1469 ,  H04L69/28 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/0833

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：US20160150536A1

公开(公告)日：2016-05-26

申请号：US14948668

申请日：2015-11-23

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK

IPC: H04W72/04 ,  H04W28/26 ,  H04L12/741 ,  H04W16/14

CPC classification number: H04L45/74 ,  H04L5/001 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0816 ,  H04W88/06

Abstract: Systems and methods for co-existence between wireless Radio Access Technologies (RATs) employing channel reservation on a shared communication medium are disclosed. One or more channel reservation messages defined for a first RAT may be received to reserve the communication medium for a reservation duration, with the communication medium comprising a plurality of component channels. A first component channel may be determined among the plurality of component channels to be protected for operation of a second RAT in accordance with the one or more channel reservation messages. Communication via the first RAT may nevertheless proceed on a second component channel among the plurality of component channels during the reservation duration.

Abstract translation: 公开了在共享通信介质上采用信道预留的无线无线电接入技术（RAT）之间共存的系统和方法。 可以接收为第一RAT定义的一个或多个信道预留消息，以便在通信媒体包括多个分量信道的情况下预留通信媒体用于预留持续时间。 可以根据一个或多个信道预约消息，在要被保护的多个分量信道中确定第一RAT的操作的第一分量信道。 在预约期间内，经由第一RAT的通信可能在多个分量信道中的第二分量信道上进行。

公开(公告)号：US20160037363A1

公开(公告)日：2016-02-04

申请号：US14446064

申请日：2014-07-29

Applicant: QUALCOMM Incorporated

Inventor： Peter KAIROUZ ,  Ahmed Kamel SADEK ,  Kambiz AZARIAN YAZDI ,  Nachiappan VALLIAPPAN

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04W24/00

Abstract: A method of interference management for a wireless device in a wireless communication system may comprise, for example, receiving, at a first wireless device from a second wireless device of the wireless communication system, channel measurement statistics associated with a communication channel of the wireless communication system, comparing the channel measurement statistics to a corresponding bursty interference signature characteristic of bursty interference, identifying a bursty interference condition on the communication channel based on the comparison, and generating a bursty interference indicator based on the identification of the bursty interference condition. Other methods of interference management for a wireless device in a wireless communication system are also disclosed.

Abstract translation: 无线通信系统中的无线设备的干扰管理方法可以包括例如在第一无线设备处从无线通信系统的第二无线设备接收与无线通信的通信信道相关联的信道测量统计信息 系统，将信道测量统计与突发干扰的相应突发干扰签名特征进行比较，基于该比较识别通信信道上的突发干扰条件，以及基于突发干扰条件的识别来生成突发干扰指示符。 还公开了无线通信系统中的无线设备的其他干扰管理方法。

公开(公告)号：US20150305050A1

公开(公告)日：2015-10-22

申请号：US14687264

申请日：2015-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ping XIA ,  Ahmed Kamel SADEK ,  Nachiappan VALLIAPPAN

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04J3/1694 ,  H04W16/14 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/08 ,  H04W72/082 ,  H04W74/0808 ,  H04W84/045 ,  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.

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：US20150063323A1

公开(公告)日：2015-03-05

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

CPC classification number: H04L5/0073 ,  H04W16/14 ,  H04W56/001 ,  H04W72/1215 ,  H04W88/10

Abstract: The disclosure is related to 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.

Abstract translation: 本公开涉及选择用于蜂窝网络的操作信道以减少对由包括WLAN接入点和蜂窝网络调制解调器的小小区操作的无线局域网（WLAN）的干扰。 小单元对可用信道进行信道扫描，基于信道扫描确定是否存在干净的信道作为蜂窝网络的操作信道，其中干净信道包括干扰WLAN的信道小于 WLAN干扰阈值，并且基于干净信道可用来选择干净信道作为蜂窝网络的操作信道，或者基于没有干净的信道可用来关闭蜂窝网络。