公开(公告)号：US09655037B2

公开(公告)日：2017-05-16

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 ,  H04W48/16 ,  H04W48/14 ,  H04W48/06

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.

公开(公告)号：US09042432B2

公开(公告)日：2015-05-26

申请号：US13828996

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Marc Walter Werner ,  Stefan Brueck ,  Lawrence Winston Yonge, III

IPC: H04B1/38 ,  H04B15/00 ,  H04B3/54 ,  H04L1/20 ,  H04L25/06

CPC classification number: H04B15/00 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5416 ,  H04B2203/5495 ,  H04L1/20 ,  H04L25/067

Abstract: An adaptive filter bank can be implemented on a PLC device to dynamically adapt to variations in notching requirements and the performance of the PLC medium. The PLC device can apply filter coefficients to one or more filter elements of the adaptive filter bank to generate one or more notched subcarriers in the PLC band. A performance measurement of one or more subcarriers in the PLC band can be determined and evaluated against corresponding performance measurement thresholds. For a given notched subcarrier, if the performance measurement of the corresponding subcarriers is not in accordance with the performance measurement threshold, updated filter coefficients for the filter element configured to generate the notched subcarrier can be determined based, at least in part, on the performance measurement of the one or more subcarriers. The filter coefficients of the filter element can then be updated using the updated filter coefficients.

Abstract translation: 可以在PLC设备上实现自适应滤波器组，以动态地适应PLC介质的开槽要求和性能的变化。 PLC设备可以将滤波器系数应用于自适应滤波器组的一个或多个滤波器元件，以在PLC频带中产生一个或多个有缺口的子载波。 可以根据相应的性能测量阈值确定和评估PLC频带中一个或多个子载波的性能测量。 对于给定的缺口子载波，如果相应子载波的性能测量不符合性能测量阈值，则可以至少部分地基于性能来确定被配置为生成缺陷副载波的滤波器元件的更新滤波器系数 一个或多个子载波的测量。 然后可以使用更新的滤波器系数来更新滤波器元件的滤波器系数。

公开(公告)号：US09433008B2

公开(公告)日：2016-08-30

申请号：US14275714

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Marc Walter Werner ,  Andrea Garavaglia ,  Patrick Stupar ,  Ahmed Kamel Sadek

IPC: H04W72/08 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W72/085 ,  H04W72/0453 ,  H04W84/12

Abstract: In an aspect, methods and apparatus of communication include detecting a channel reselection condition for triggering reselection from a current channel to a first potential channel. The methods and apparatus further include determining that a first timer value meets or exceeds a first timer threshold value based at least in part on detecting the channel reselection condition. Additionally, the methods and apparatus include selecting the first potential channel from a channel list when the first timer value meets or exceeds the first timer threshold value. In another aspect, methods and apparatus include detecting an initial channel selection condition for triggering selection of a first initial channel. The methods and apparatus further include forming a channel list including one or more channels based on one or more channel selection parameters. Additionally, the methods and apparatus include selecting the first initial channel from the channel list.

Abstract translation: 在一方面，通信的方法和装置包括检测用于触发从当前信道到第一潜在信道的重选的信道重选条件。 所述方法和装置还包括至少部分地基于检测到信道重选条件来确定第一定时器值满足或超过第一定时器阈值。 另外，所述方法和装置包括当第一定时器值满足或超过第一定时器阈值时从通道列表中选择第一潜在通道。 在另一方面，方法和装置包括检测用于触发第一初始信道选择的初始信道选择条件。 所述方法和装置还包括基于一个或多个信道选择参数形成包括一个或多个信道的信道列表。 另外，方法和装置包括从频道列表中选择第一初始信道。

公开(公告)号：US20150117366A1

公开(公告)日：2015-04-30

申请号：US14525185

申请日：2014-10-27

Applicant: QUALCOMM Incorporated

Inventor： Patrick Stupar ,  Ahmed Kamel Sadek ,  Andrea Garavaglia ,  Marc Walter Werner ,  Andreas Maximilian Schenk ,  Simone Merlin

IPC: H04W52/24 ,  H04W72/08 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04W74/04 ,  H04L5/00 ,  H04L5/0078 ,  H04L27/0006 ,  H04L47/826 ,  H04L47/828 ,  H04W24/10 ,  H04W52/243 ,  H04W72/0473 ,  H04W72/082 ,  H04W84/12

Abstract: Methods and apparatus for adjusting transmission power in wireless networks are provided. One aspect of the disclosure provides a method of wireless communication over a wireless communication medium. The method includes determining a level of interference for a data transmission from a transmitting device to an intended receiving device. The method further includes setting a transmission power level for transmitting a message based on the interference level, the message comprising one of a request-to-send (RTS) packet and a clear-to-send (CTS) packet. The method further includes transmitting the message at the set transmission power level.

Abstract translation: 提供了一种用于调整无线网络中传输功率的方法和装置。 本公开的一个方面提供了一种通过无线通信介质进行无线通信的方法。 该方法包括确定从发送设备到预期接收设备的数据传输的干扰级别。 该方法还包括基于干扰电平来设置用于发送消息的发送功率电平，所述消息包括请求发送（RTS）分组和清除发送（CTS）分组之一。 该方法还包括以设定的发送功率电平发送消息。