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1. (WO2017192078) ESTIMATION OF PARAMETERS USED FOR DETERMINING A SIGNAL-TO-INTERFERENCE MEASURE AT A WIRELESS COMMUNICATION DEVICE

Pub. No.:    WO/2017/192078    International Application No.:    PCT/SE2016/050406
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Thu May 05 01:59:59 CEST 2016
IPC: H04B 17/336
H04L 1/00
H04L 1/20
H04W 4/00
H04L 1/18
H04W 52/24
H04W 92/12
H04W 92/20
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: SANDBERG, David
CHRISTENSSON, Anders
NORDSTRÖM, Björn
PERSSON, Magnus
Title: ESTIMATION OF PARAMETERS USED FOR DETERMINING A SIGNAL-TO-INTERFERENCE MEASURE AT A WIRELESS COMMUNICATION DEVICE
Abstract:
The invention relates to a method performed by a node in a wireless 5 communication network (10) of estimating parameters used for determining a signal-to-interference measure at a wireless communication device (11) served by a base station (12), and a node performing the method. In a first aspect of the invention, a method at a node in a wireless communication network (10) of estimating parameters used for determining 10 a signal-to-interference measure at a wireless communication device (11) served by a base station (12) is provided. The method comprises acquiring (S101) an estimate of channel condition between the communication device (11) and the serving base station (12), and between the communication device (11) and at least one base station (13) of a neighbouring cell, estimating 15 (S102) the signal-to-interference measure using the estimate of the respective channel condition and acquired output power and Physical Resource Block (PRB) utilization of each of the base stations (12, 13), to be complied with when communicating with the communication device (11), and receiving (S103), from the communication device (11), an indication of quality of a 20 channel via which the communication device is served by the base station. The method further comprises determining (S104) whether a change in the estimate of the signal-to-interference measure is required based on said indication of channel quality, and if so updating (S105) the estimate of the channel condition between the communication device (11) and the serving 25 base station (12) and/or between the communication device (11) and the at least one base station (13) of a neighbouring cell to attain the required change in the estimate of the signal-to-interference measure.