Nokia Telecommunications Oy

Nokia Mobile Phones Limited

Jere Keurulainen

Zhi-Chun Honkasalo

Mikko J Rinne

Seppo Hamalainen

Hannu Hakkinen

Hannu H&auml;kkinen

Anu Virtanen

Seppo H&auml;m&auml;l&auml;inen

A cellular radio system and a handover method in a cellular radio system is provided. The cellular radio system includes a subscriber terminal and a base station. In the system, the subscriber terminal maintains and continuously updates an active set of base stations. One or several base stations belonging to the active set has a connection or connection set-up facilities to the subscriber terminal. The subscriber terminal controls the downlink transmission of one or several base stations of the active set by switching the transmission of the base station on or off. This method provides a fast soft handover similar to a hard handover.

Handover method, and a cellular radio system

Connection establishment method and radio system

A method for estimating the quality of a connection in a cellular radio system, and a receiver of a cellular radio system, utilizing comparison circuitry for estimating, by use of received pilot signals and received combined broadband signal the interference caused by base stations at the terminal equipment. The method may be utilized e.g. for distributing the traffic load of the base stations and in interference cancellation methods.

Method for estimating the quality of a connection, and a receiver

Growing community of inventors

Helsinki, Finland

Jere Keurulainen