公开(公告)号：US20060088112A1

公开(公告)日：2006-04-27

申请号：US11222199

申请日：2005-09-08

Applicant: Suvra Das ,  Muhammad Rahman ,  Frank Hanns Fitzek

Inventor： Suvra Das ,  Muhammad Rahman ,  Frank Hanns Fitzek

IPC: H04K1/10

CPC classification number: H04L27/261 ,  H04L25/0224 ,  H04L27/2657

Abstract: A process and a system for transmission of data in a multi-carrier Orthogonal Frequency Division Multiplexing (OFDM) communication system.

Abstract translation: 一种用于在多载波正交频分复用（OFDM）通信系统中传输数据的过程和系统。

公开(公告)号：US20070093252A1

公开(公告)日：2007-04-26

申请号：US11527313

申请日：2006-09-26

Applicant: Muhammad Rahman ,  Ragnar Reynisson ,  Frank Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

Inventor： Muhammad Rahman ,  Ragnar Reynisson ,  Frank Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

IPC: H04Q7/20

CPC classification number: H04L1/0001 ,  H04B1/7156 ,  H04L1/0033 ,  H04L27/2608

Abstract: A frequency resource operating apparatus and method for transmitting and receiving data at a different hopping pattern speed according to a CSI in a BWA communication system are provided. In a method of transmitting and receiving data using CSI in a mobile communication system, a BS sets the CSI of an MS to an initial CSI and sends data to the MS according to the initial CSI. The MS sends a downlink CSI to the BS. The BS groups the MS based on the downlink CSI and sends data to the MS according to a hopping pattern for the group of the MS among hopping patterns preset for predetermined groups.

Abstract translation: 提供了一种根据BWA通信系统中的CSI以不同跳频图形速度发送和接收数据的频率资源操作装置和方法。 在移动通信系统中使用CSI发送和接收数据的方法中，BS将MS的CSI设置为初始CSI，并根据初始CSI向MS发送数据。 MS向BS发送下行链路CSI。 BS基于下行链路CSI对MS进行分组，并且根据针对预定组预定的跳频模式中的MS组的跳频模式向MS发送数据。

公开(公告)号：US09823188B1

公开(公告)日：2017-11-21

申请号：US14834508

申请日：2015-08-25

Applicant: Manoj Kumar Ram ,  Muhammad Rahman

Inventor： Manoj Kumar Ram ,  Muhammad Rahman

IPC: G01N21/3577 ,  G01N21/94 ,  G01N21/31

CPC classification number: G01N21/3577 ,  G01N21/3103 ,  G01N21/94 ,  G01N2021/3595 ,  G01N2201/061 ,  G01N2201/12

Abstract: In some embodiments, a system for detecting the presence of a contaminant on a surface includes an infrared light source configured to shine infrared light on the surface, an infrared light detector configured to detect infrared light reflected from the surface, and a computing device configured to receive an infrared reflectance signal from the infrared light detector and detect the presence of the contaminant from a feature in the reflectance signal.