Alcatel

Alcatel Lucent

Manfred Litzenburger

Hajo Bakker

Stephen Kaminski

Christian Gerlach

Klaus Keil

Paul A M Buné

A method is provided of operation of a user terminal in a network for radio communications comprising a first radio access network and a second radio access network. The user terminal comprising a first radio, a second radio, a first antenna and a second antenna. The first radio comprises two ports for connection to antennas. At least one of the two antennas is switchably connectable to each of the radios. The method comprising the following steps: connecting the two antennas to the first radio such that each port is connected to a respective antenna, and receiving data at the first radio passed via a radio communication connection from a first radio access network to the two antennas; switching the second antenna from connection to the first radio to connection to the second radio, receiving data at the first radio passed via a radio communication connection from the first radio access network to the first antenna, and receiving data at the second radio passed via a radio communication connection from a second radio access network to the second antenna.

User terminal having first and second radios switchably connectable to first and second antennas for radio access networks telecommunication

A method for allocating subcarrier frequencies to a user terminal in a wireless system using multi-carrier modulation such as OFDM in which a network is adapted to communicate with a plurality of user terminals for data transmission, signaling control and link adaptation via an air interface downlink channel and feedback channel, and where a number of terminals estimate their own specific channel transfer function, wherein upon terminal channel transfer function estimation over a certain period of time, a set of terminals report to the network, over their feedback channel, information about their measured channel transfer function and interference noise estimate and the network, according to this information, allocates the subcarrier frequencies of at least one first frequency subset to the set of terminals which sent said information following a frequency-selective allocation scheme and allocates the subcarrier frequencies of at least one second frequency subset to the rest of the terminals according to a frequency interleaving scheme.

Method for subcarrier allocation and modulation scheme selection in wireless multicarrier transmission system

The present invention relates to an interface unit comprising a first component for establishing a connection to a radio network controller of a radio network sub-system by means of a first communication protocol, a second component for establishing a connection to at least one access point of a wireless local area network by means of a second communication protocol, a third component for converting the second communication protocol to the first communication protocol and for converting the first communication protocol to the second communication protocol and a fourth component for providing data indicative of a load situation of at least one access point to the radio network controller.

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Bruchsal, Germany

Manfred Litzenburger