US 2014/0211729 A1 · TELECOMMUNICATIONS SYSTEM, APPARATUS AND METHOD FOR COMMUNICATING TO A FIRST AND A SECOND CLASS OF TERMINALS USING A FIRST AND/OR A SECOND CARRIER

Abstract

A telecommunications system communicating data to/from one or more terminals and a network, including one or more transmitters operable to transmit first and second carriers over respective first and second frequency bandwidths. During a first time period the transmitters can transmit data receivable by first and second classes of terminals on the first and second carriers. During a second different time period, the transmitters can transmit data to the second terminal class on the first and second carriers in combination. A data transmission format on the first carrier is incompatible with a user data transmission format on the second carrier, during the first time period, and the transmitters can transmit control data on the first carrier in the first time period receivable by the second terminal class to enable the second terminal class to maintain synchronization with the first carrier during the first time period.

Claims19

Dependent claims

A telecommunications system for communicating data to and from one or more terminals and a network, the system comprising one or more transmitters operable to transmit a first carrier over a first frequency bandwidth and to transmit a second carrier over a second frequency bandwidth, wherein

during a first time period the one or more transmitters are operable to transmit data receivable by a first class of terminal on the first carrier and to transmit data receivable by a second class of terminal on the second carrier;
and
during a second time period outside the first time period, the one or more transmitters are operable to transmit data to the second class of terminal on the first and second carriers in combination, wherein
a transmission format for data on the first carrier in the first time period is incompatible with a transmission format for data on the second carrier during the first time period, and wherein the one or more transmitters are operable to transmit control data on the first carrier in the first time period which is receivable by the second class of terminal to enable the second class of terminal to maintain synchronisation with the first carrier during the first time period.

1 more element

A method of communicating data to and from one or more terminals and a network in a telecommunications system on a first carrier transmitted over a first frequency bandwidth and a second carrier transmitted over a second frequency bandwidth, the method comprising:

during a first time period transmitting data receivable by a first class of terminal on the first carrier and transmitting data receivable by a second class of terminal on the second carrier;
and
during a second time period outside the first time period, transmitting data to the second class of terminal on the first and second carriers in combination, wherein
a transmission format for data on the first carrier in the first time period is incompatible with a transmission format for data on the second carrier during the first time period, and wherein control data is transmitted on the first carrier in the first time period which is receivable by the second class of terminal to enable the second class of terminal to maintain synchronisation with the first carrier during the first time period.

1 more element

Dependencies are inferred from the claim text.

Telecommunications system, apparatus and method for communicating to a first and a second class of terminals using a first and/or a second carrier

Life of this patent

Telecommunications system, apparatus and method for communicating to a first and a second class of terminals using a first and/or a second carrier

Life of this patent

Abstract

Claims19