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OUTER LOOP POWER CONTROL FOR F-DPCH

      
Numéro de document 02593831
Statut Délivré - en vigueur
Date de dépôt 2005-06-07
Date d'octroi 2013-03-12
Propriétaire LENOVO GROUP LIMITED (Suède)
Inventeur(s)
  • Kazmi, Muhammad
  • Gerstenberger, Dirk

Abrégé


The present invention relates to a method and arrangement for power control of
t he F-DPCH (Fractional-Dedicated Physical Control Channel) in a 3rd
generation mo bile telecommunication system applying HSDPA, in particular for
a user equipment in soft handover. The user equipment derives the TPC command
error rate R to ad just the SIR target as the max weighted function of the TPC
command error rates of all the radio links in soft handover. According to the
choice of weights in t he weighted function, the user equipment can set its
SIR target in a way that ei ther all radio links are able to maintain the TPC
BER below or equal to the targ et TPC BER that is set bThe present invention
relates to a method and arrangemen for power control of the F-DPCH (Fractional-
Dedicated Physical Control Channel in a 3rd generation mobile
telecommunication system applying HSDPA, i particular for a user equipment in
soft handover. Such user equipments may not experience the same bit error
ratio (BER) on different radio uplinks and, thus, it is not specified how a
user equipment in soft handover derives the SIR targe for the inner loop. The
user equipment derives the TPC command error rate R adjust the SIR target as
the max weighted function of the TPC command error rat es of all the radio
links in soft handover. According to the choice of weights i the weighted
function, the user equipment can set its SIR target in a way that either all
radio links are able to maintain the TPC BER below or equal to the t arget TPC
BER that is set by the network. The user equipment can also choose the weights
such that the target TPC error rate is met only on the serving HS-DSCH.

Classes IPC  ?

  • H04B 7/005 - Commande de la transmissionÉgalisation