Lucent Technologies Inc.

Other

Molex Cvs Bochum Gmbh

Norbert Alfred Bauer

Martine Madelaine Herpers

Andrea Giustina

Michael Nosthoff

Thomas Seiboth

Jochen Nickles

Ahmad El Assaad

A method and an apparatus establish a distance as well as to a vehicle. In the method for establishing a distance between a vehicle and an infrastructure device, at least two vehicle-mounted reception devices receive a signal transmitted by the infrastructure device. Each of the vehicle-mounted reception devices contains at least two antenna elements. For each reception device, a reception device-specific distance between the vehicle and the infrastructure device is established in accordance with the antenna signals generated by the antenna elements, and the shortest of all the reception device-specific distances is established as the distance.

Method and apparatus for establishing the distance between a vehicle and an infrastructure device

In a General Packet Radio Service (GPRS) system in which a Serving GPRS Support Node operates a leaky bucket algorithm to control data flow, a packet control unit in the base station is arranged so that on connection of a new mobile, a flow control message in the form of new values of B the maximum bucket capacity and R the leak rate is sent to the Serving GPRS Support Node only when it is known that the new connection is non-bursty. In the Temporary Block Flow queue for the new connection, a threshold is set at a queue length which ensures that at least two Logical Link Layer-Protocol Data Units are received before the threshold is reached. New values of B and R are then sent, the new value of B being related to the maximum data capacity of the newly connected mobile.

Radio telecommunications system with improved use of air interface (II)

A packet control unit for a radio telecommunications system such as GPRS has a radio link control/medium access control blocks scheduler which allocates a number of temporary block flow queues to a timeslot for transmission to a mobile system; a fixed allocation table is provided having allocation slots corresponding to RAC blocks, and the RAC blocks scheduler reads the table cyclically and allocates slots according to the reading. Timeslots are requested later during increased demand conditions and are released earlier during decreasing demand conditions than in currently known arrangements.

Radio telecommunications system with improved use of timeslots

In a radio telecommunications system such as GSM in which a serving node operates the leaky bucket algorithm to control flow of packet data to a packet control unit and a virtual queue of data is formed in the control unit, upper and lower triggers BVC(u), BVC(l) are provided on the queue, and when the queue reaches the upper trigger, the packet control unit sends a request to the node to alter the leak rate R of the leaky bucket algorithm so as to reduce the data flow rate. When the lower trigger BVC(l) is reached, the control unit sends values of R and of Bmax, the maximum bucket size of the leaky bucket algorithm, to the node so that the length of the virtual queue is maintained close to the value of Bmax. Bmax is proportional to the number of allocated timeslots.

Radio telecommunications system with improved use of air interface

An installation for recording binary signals on a magnetic information carrier, in which a needle pulse of one polarity is applied to a recording magnetic head during each change of the signals to be recorded from '0' to '1' and a needle pulse of the other polarity is applied during each change from '1' to '0'. The installation includes either two monoflops or a single monoflop. The output signals of the two monoflops are applied to the magnetic head by way of an adding circuit whereas the output signal of the single monoflop is applied to the magnetic head by way of a logic circuit which reverses the current direction corresponding to the existing data signal.

Installation for recording and recovering binary signals on a magnetic

An installation for recording binary signals on a magnetic information carrier, in which a needle pulse of one polarity is applied to a recording magnetic head during each change of the signals to be recorded from '0' to '1' and a needle pulse of the other polarity is applied during each change from '1' to '0'. The installation includes either two multivibrators or a single multivibrators. The output signals of the two multivibrators are applied to the magnetic head by way of an adding circuit whereas the output signal of the single multivibrator is applied to the magnetic head by way of a logic circuit which reverses the current direction corresponding to the existing data signal. Additionally, an installation for the recovery of binary signals recorded on a magnetic information carrier determines the zero passage of the read-out signal and includes three comparators which compare the read-out signal with predetermined threshold voltages. Only if the output signals of the comparators occur in a predetermined sequence, a received signal is identified as read-out signal.

Growing community of inventors

Bayem, Germany

Norbert Alfred Bauer