United States Patent 7,599,707
Zhang , et al. October 6, 2009
Method and system for controlling transmission power of a downlink signaling channel based on enhanced uplink transmission failure statistics
Abstract
A method and system for controlling the transmission power of at least one downlink (DL) enhanced uplink (EU) signaling channel such that enhanced dedicated channel (E-DCH) DL signaling is delivered efficiently and reliably. The system includes at least one wireless transmit/receive unit (WTRU), at least one Node-B and a radio network controller (RNC). At least one of the WTRU and the Node-B compute EU transmission failure statistics on the DL EU signaling channel and report the EU transmission failure statistics to the RNC. The RNC then adjusts a transmission power offset of the DL EU signaling channel to be used in determining transmission power level of the DL EU signaling channel at the Node-B based on the EU transmission failure statistics.
Inventors: Zhang; Guodong (Farmingdale, NY), Terry; Stephen E. (Northport, NY), Dick; Stephen G. (Nesconset, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/116,017
Filed: April 27, 2005
Related U.S. Patent Documents
Application Number Filing Date Patent Number Issue Date
60567308 Apr., 2004
Current U.S. Class: 455/522 ; 370/318; 455/69
Current International Class: H04B 7/00 (20060101)
Field of Search: 455/69,522,63.1,67.13 370/318
