Patents Assigned to Telefonaictiebolaget LM Ericsson (publ)
  • Patent number: 7136483
    Abstract: Mobile terminals in a high data rate CDMA system may be placed in a control hold mode wherein reverse link control channels are gated, or transmitted at a reduced duty cycle. Mode decisions are based on the activity of the mobile terminal in both the forward and reverse links. A forward link inactivity timer is maintained at the base station that schedules forward link communications to a mobile terminal. The reverse link inactivity timer may be maintained at the same base station, at a different base station in the mobile terminal's active set, or at the base station controller. The forward link inactivity timer may follow the mobile terminal's selection of best forward link serving base station in handoff. When both the forward and reverse link inactivity timers have expired, and no forward link data is pending, the mobile terminal may be commanded to a control hold mode.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: November 14, 2006
    Assignee: Telefonaictiebolaget LM Ericsson (publ)
    Inventors: Farideh Khaleghi, Patrik Lundqvist, Shiau-He Tsai