Patent ID: 8831120
Filing Date: 2014-09-09
Classification: H04B,H04L,H04W

Abstract:
1. A method for facilitating adaptive subcarrier allocation to a mobile terminal for Orthogonal Frequency Division Multiplexing (OFDM) or Frequency Division Multiplexing (FDM) transmission in a multi cell network, comprising: estimating transmit powers or spectral power distributions of a serving base station and at least one neighboring base station at the mobile terminal, wherein the estimating takes into account restrictions of the transmit powers or the spectral power distributions due to interference coordination schemes for the multi cell network; calculating channel transfer functions based on measurements in the mobile terminal of pilots transmitted from the serving base station to the mobile terminal and from the at least one neighboring base station to the mobile terminal; weighting the estimated transmit powers or the estimated spectral power distributions with the channel transfer functions at the mobile terminal; estimating a signal power associated with the serving base station and an interference power associated with the at least one neighboring base station at the mobile terminal based on the weighted transmit powers or the weighted spectral power distributions; and estimating a signal to interference ratio at the mobile terminal based on the estimated signal power and the estimated interference power.