Method and arrangement in a wireless communication system

摘要

Method and arrangement in a first base station for calculating a first location parameter α of a user equipment in order to improve beamforming accuracy. The first base station and the user equipment are comprised in a Coordinated Multiple Point “CoMP” communication system together with a second base station. The method comprises measuring a signal received from the user equipment, estimating a first parameter value α′ based on the measured signal, obtaining a second parameter value α″, based on an estimated second location parameter β of the user equipment, estimated at the second base station and calculating the first location parameter α, based on the first estimated parameter value α′ and the obtained second parameter value α″.

主权项

1. A method in a first base station for calculating a first location parameter (α) of a user equipment in order to improve beamforming accuracy within a Coordinated Multiple Point (CoMP) communication system, which communication system comprises the first base station, the user equipment and a second base station, the method comprising:
measuring a signal received from the user equipment; determining a first estimate (α′) of the first location parameter, based on the measured signal; obtaining a second estimate (α″) of the first location parameter, based on a second location parameter of the user equipment, estimated at the second base station, said second location parameter is different from said second estimate of the first location parameter; calculating the first location parameter based on the first estimate of the first location parameter and the obtained second estimate of the first location parameter.