A MASTER-SLAVE ARCHITECTURE IN A CLOSED LOOP TRANSMIT DIVERSITY SCHEME

摘要

A base station receiver (610), a computer program product operable at a base station (600), and a method operable at a base station receiver (610), for receiving uplink transmit diversity transmissions utilizing a master / slave scheme at the receiver (610). One or more tracking loops, such as a searcher task, a time tracking loop, or a frequency tracking loop may be implemented at the base station receiver (610) to determine compensation values, such as finger timings for a rake receiver or frequency compensation values, in accordance with characteristics of a primary pilot channel (514) transmitted utilizing a first precoding weight vector. Here, corresponding compensation values may be derived for the reception of a secondary pilot channel (520) transmitted utilizing a precoding weight vector orthogonal to the first precoding weight vector, simply based on those determined for the primary pilot channel (514). That is, the compensation value assignment for receiving the second pilot channel may act as a slave to its master, being the compensation value assignment for receiving the primary pilot channel (514).