公开(公告)号：US09131512B2

公开(公告)日：2015-09-08

申请号：US13796389

申请日：2013-03-12

Applicant: Intel Corporation

Inventor： Shahmaz Azizi ,  Eldad Perahia ,  Thomas J Kenney

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: Systems, devices, and methods for mitigating collisions between wireless transmissions operating at different bandwidths are disclosed. As such, a wireless device operating at a predefined bandwidth includes a transceiver that receives a signal across a wireless channel, a filter that generates a band-limited filtered signal at the predefined bandwidth of the wireless device, a correlating mechanism that correlates the band-limited filtered signal with a delayed, conjugated version of the band-limited filtered signal, logic that performs a moving average of the correlated filtered signals to determine correlation peaks, and logic configured to compare the correlation peaks with a predetermined threshold. With this configuration, if the correlation peaks are greater than the predetermined threshold, the received signal is determined to operate at a wider bandwidth than the predefined bandwidth of the wireless device, and the wireless device defers accessing the wireless channel to transmit until a predetermined time interval.

Abstract translation: 公开了用于减轻以不同带宽工作的无线传输之间的冲突的系统，设备和方法。 这样，以预定带宽工作的无线设备包括：收发器，其通过无线信道接收信号;滤波器，其在无线设备的预定带宽下生成带限滤波信号;相关机制， 具有带限滤波信号的延迟共轭版本的有限滤波信号，执行相关滤波信号的移动平均以确定相关峰值的逻辑，以及被配置为将相关峰值与预定阈值进行比较的逻辑。 利用该配置，如果相关峰值大于预定阈值，则确定接收信号在比无线设备的预定带宽更宽的带宽上操作，并且无线设备延迟访问无线信道以发送直到预定时间 间隔。

公开(公告)号：US08923153B2

公开(公告)日：2014-12-30

申请号：US13667922

申请日：2012-11-02

Applicant: Intel Corporation

Inventor： Shahmaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

IPC: H04W72/00 ,  H04L5/00 ,  H04W24/02

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L27/2647 ,  H04W24/02

Abstract: Examples are disclosed for updating a wireless communication channel estimation. In some examples, a packet may be transmitted or received via a communication channel, the packet having one or more pilot signals that may shift between subcarrier frequencies based on a predetermined first variable associated with a first time duration. A second variable associated with a second time duration may be determined by the receiver of the data packet. The second variable may enable a receiver of the data packet to decide how many pilot signals may be used to update an initial channel estimation for the communication channel. Other examples are described and claimed.

Abstract translation: 公开了用于更新无线通信信道估计的示例。 在一些示例中，可以经由通信信道来发送或接收分组，该分组具有可以基于与第一持续时间相关联的预定第一变量在子载波频率之间移动的一个或多个导频信号。 与第二持续时间相关联的第二变量可以由数据分组的接收器确定。 第二变量可以使得数据分组的接收机能够决定可以使用多少导频信号来更新通信信道的初始信道估计。 其他的例子被描述和要求保护。