Method and device for SINR estimation

摘要

A method (200) for a transceiver in a mobile system for determining the SINR for signals from at least two User Equipments during a future time interval, comprising arranging the transceiver to receive (205) transmissions from User Equipments in the mobile system on one radio channel per User Equipment, choosing (210) the at least two User Equipments from User Equipments which have data to transmit to the transceiver. The method comprises determining (220) the radio channel characteristics during the future time interval for the at least two User Equipments, emulating (230) at least one receiver type available to the transceiver during said future time interval in order to determine a post demodulation channel for the at least two User Equipments, in which emulation the determined radio channel characteristics, and determining (235) an SINR in the transceiver for the at least two User Equipments using the post demodulation channel.

主权项

1. A method for a transceiver in a mobile communications system to determine the SINR, Signal to Interference and Noise Ratio, in the transceiver for signals from at least two User Equipments in the mobile communications system during a future time interval, the method comprising:
arranging the transceiver to receive transmissions from User Equipments in the mobile communications system on at least one radio channel per User Equipment, choosing the at least two User Equipments from a set of User Equipments in the mobile communications system which have data to transmit to the transceiver, determining radio channel characteristics during a future time interval for each of the at least two User Equipments, emulating at least one of a plurality of receiver types available to the transceiver during said future time interval in order to determine a post demodulation channel which is a channel after equalization and antenna combining, including an Inverse Discrete Fourier Transform, IDFT, which transforms the channel to a time domain, for each of the at least two User Equipments, in which emulation of the determined radio channel characteristics for the at least two User Equipments are used, and determining an SINR in the transceiver for the at least two User Equipments using the post demodulation channel for the at least two User Equipments, wherein the emulating the at least one of the plurality of receiver types includes determining a frequency dependent weighting matrix W(m)=W(m)=({circumflex over (Λ)}+Ĥ(m)Ĥ*(m))−1Ĥ(m).