Title:
【発明の名称】移動通信ユーザ装置ユニットのための適応的RACH電力決定
Document Type and Number:
Japanese Patent JP2003511962
Kind Code:
A
Abstract:
A transmit power value (PRACH) for a connection request message (RACH) from a mobile user equipment unit (20) to a telecommunications network (18) is determined using a target ratio of received energy to interference value [(Eb/I0)RACH-target] and a modification factor [(Eb/I0)MEAN-DELTA]. The modification factor is a sliding mean differential between the target ratio and an actual ratio [(Eb/I0)ACTUAL] of received energy to interference as determined by the telecommunications network. The modification factor allows for the calculation of the transmit power for the connection request message to be adaptive with respect to a changing characteristic of the mobile user equipment unit (e.g., aging of the mobile user equipment unit). In one embodiment, the transmit power value determination is made at the mobile user equipment unit.
Inventors:
Eric, Jenson
Application Number:
JP2001530231A
Publication Date:
March 25, 2003
Filing Date:
October 10, 2000
Export Citation:
Assignee:
Telefon Acty Bora Get Elm Ericsson (Pubble)
International Classes:
H04B7/26; H04B7/005; H04W52/22; H04W52/50; H04W52/24; H04W52/32; H04W74/08; (IPC1-7): H04B7/26
Attorney, Agent or Firm:
Yasunori Otsuka (3 others)