Transmission power level estimation

A radio network controller (RNC) for determining transmission power levels after admission of a new user in code division multiple access (CDMA) communications, the RNC comprising:

• a determining device configured to determine an initial estimate of a first transmit power level, wherein the first transmit power level is associated with the new user;
• a providing device configured to provide estimates of a second transmit power level, wherein the second transmit power level is associated with each of the existing users;
• an estimating device configured to generate subsequent estimates for the first transmit power level and the second transmit power level using previous estimates of the first transmit power level and the second transmit power level;
• and
• said estimating device further configured to repeatedly generate subsequent estimates with a last repetition's estimates for the first transmit power level and the second transmit power level, the subsequent estimates being generated until the estimated first transmit power level and the estimated second transmit power level converge, wherein convergence of the estimated transmit power levels is determined by the equation
• 
• T
• K
• +
• 1
• ⁡
• (
• i
• )
• -
• T
• K
• ⁡
• (
• i
• )
• 
• T
• K
• ⁡
• (
• i
• )
• ≤
• δ
• wherein T is the transmit power level, i is an index for each user between 1 and M+1, M is a number of existing users, M+1 identifies the new user, K is a number of estimations of the transmit power level for user i, and δ is a convergence parameter.

A radio network controller (RNC) for determining transmission power levels after admission of a new user in code division multiple access (CDMA) communications, the RNC comprising:

• a radio resource management device configured to:
• determine an initial estimate of a first transmit power level, wherein the first transmit power level is associated with the new user;
• provide estimates of a second transmit power level, wherein the second transmit power level is associated with each of the existing users;
• generate subsequent estimates for the first transmit power level and the second transmit power level using previous estimates of the first transmit power level and the second transmit power level;
• and
• repeatedly generate subsequent estimates with a last repetition's estimates for the first transmit power level and the second transmit power level, the subsequent estimates being generated until the estimated first transmit power level and the estimated second transmit power level converge, wherein convergence of the estimated transmit power levels is determined by the equation
• 
• T
• K
• +
• 1
• ⁡
• (
• i
• )
• -
• T
• K
• ⁡
• (
• i
• )
• 
• T
• K
• ⁡
• (
• i
• )
• ≤
• δ
• wherein T is the transmit power level, i is an index for each user between 1 and M+1, M is a number of existing users, M+1 identifies the new user, K is a number of estimations of the transmit power level for user i, and δ is a convergence parameter.