Siemens Aktiengesellschaft

Hmd Global Oy

Nokia Siemens Networks Gmbh & Co Kg

Kenneth Isaacs

Michael Faerber

Jean-Michel Traynard

David Wynne Thomas

Simon Paul Davis

A mobile device in a dual carrier communication system communicates with a network via first and second carriers by receiving data in the first cell via one of the first and second carriers on one carrier frequency, whilst receiving system information and/or downlink data from a second cell via the other of the first and second carriers on another carrier frequency.

Method of operation in a dual carrier communication system

According to the invention, a reduced set of transport format combinations is signalled to a subscriber station which has established a link to a second radio communication system in a second signalling channel of said second radio communication system. The transport format indicator is then selected from the reduced set of transport format combinations and used to initiate a link transfer to the first signalling channel of a first radio communication system. A full set of transport format combinations is subsequently signalled to the subscriber station in the first signalling channel.

Method for controlling an intersystem handover

Method for controlling an intersystem link transfer

Growing community of inventors

Salisbury, United Kingdom

Kenneth Isaacs