Patents by Inventor Leif Thomas Östman

Leif Thomas Östman 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).

  • Allocating power when simultaneously sending multiple messages
    Patent number: 7586865
    Abstract: A base station receives multiple first signals from multiple mobile terminals over a first radio channel (e.g., a RACH, a CPCH, etc.). Multiple acknowledgement signals are generated for transmission over an acquisition indication channel (AICH) during a same access time slot. Each acknowledgement signal is responsive to one of the mobile terminals and includes a signature sequence of bits associated with the first signal received from that mobile terminal. An AICH transmission power profile is determined for the access time slot. If the AICH transmission power profile exceeds a predetermined maximum transmission power parameter, then a first portion of the an AICH transmission power profile is adjusted. Thereafter, the acknowledgement signals are transmitted over the AICH in accordance with the adjusted AICH transmission power profile.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: September 8, 2009
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leif Thomas Östman, Jan Pettersson