Patents by Inventor Roshdy H. M. Hafez

Roshdy H. M. Hafez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030067961
    Abstract: Wireless communications systems exist, such as 3G systems, in which voice services as well as internet access is provided to mobile terminals. In such systems the number of terminals that can be supported per basestation is limited and it is not possible to provide fast or substantially “instant” uplink access to all those supported terminals. It is desired to increase the number of terminals that can be supported by a single basestation whilst allowing each of these terminals to have fast substantially “instant” uplink access, for example, for internet access. To address this, substantially continuous pilot signals are provided from all user terminals supported by a basestation, to that basestation. The continuous signals comprise repeated spreading code words with a high spreading factor such that the background noise level is not increased to unworkable levels.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Inventors: John E. Hudson, David G. Steer, Roshdy H. M. Hafez