Alcatel

France Telecom

Google Inc.

Ivar Mortensen

Michael Jeschke

Eric Belis

Henri Favaro

Marie-Laure Boucheret

Alf Neustadt

Alf Dipl-Ing Neustadt

The present invention relates to a digital mobile communication network component comprising means for selecting a first or a second interleaving length, the selection being dependent on network traffic, the means for selecting being adapted to be coupled to means for communication over a digital mobile communication network, such as a UMTS network, the means for communication having interleaving means for data packets.

Communication device and method for communicating over a digital mobile network

A telecommunication system is described for transmitting signals between an adaptive antenna of a base station and a mobile user equipment. At least one uplink parameter of a signal received by the base station is calculated. The uplink parameter relates to a specific location of the mobile user equipment. At least one downlink parameter of a signal sent by the base station is evaluated. Said downlink parameter relates to the same specific location of the mobile user equipment. Said uplink parameter and said corresponding downlink parameter are stored in the base station.

Method of transmitting signals between an adaptive antenna of a base station and a mobile user equipment in a telecommunication network

In a UMTS (Universal Mobile Telecommunications System) wherein multiple base stations are able to communicate simultaneously with the same mobile station, with forward direction power control where the mobile station sends a transmit power control command to all base stations serving it, each base station is assigned an individual target value (TV ) from which the transmitted power level should not deviate on a long term average, thereby achieving high macrodiversity gain even under poor receiving conditions.

Transmit power control in a mobile communications system

A method is described of generating an electrical output signal (CFCS) from an electrical input signal (CS) wherein the input signal (CS) is first clipped ( ) and then filtered ( ) into the output signal (CFCS). The invention is characterized in that the input signal (CS) is clipped dependant on the succeeding filtering. Thereby, a finite power peak capacity of a succeeding amplifier is not exceeded.

Electrical clipper

A method of operating a cellular telecommunication system is described, wherein one base station communicates with at least one mobile station, and wherein the power level of the transmission is increased and decreased by requests of the mobile station. The transmission includes at least two channels (DPDCH, DPCCH), e.g data and control. One of the two channels (DPDCH) is turned off if the power level of the transmission reaches a first maximum value (DPDCH-MAX).

Operating a cellular telecommunication system

In a UMTS (Universal Mobile Telecommunications System) wherein multiple base stations are able to communicate simultaneously with the same mobile station, with forward direction power control where the mobile station sends a transmit power control command to all base stations serving it, a &ldquo;feedback-type transmit power correction&rdquo; is implemented wherein information (PL , PL ) is transmitted about the current transmitted powers from the base stations (NB , NB ) to a base station controller (SRNC) which evaluates this information to calculate a correction value (CV ) for the power transmitted by at least one (NB ) of the base stations, which then additionally changes its transmitted power by this correction value (CV ).&rdquo;

Transmit power correction in a mobile communications system

In order to detect the error on the frequency of an M-PSK phase-modulated carrier, the phase .psi.(n) of the samples is restored to the interval �-.pi., +.pi.�; .phi.(n)=mod(.psi.(n), 2.pi./M) is calculated; d(n)=mod(.phi.(n)-.phi.(n-1), 2.pi./M) is calculated; p'(n)=mod(d(n)+p(n-1), 2.pi./M) is calculated, where p(n)=mod(p*(n), 2.pi./M), where p*(n) is obtained by subtracting the current output from p'(n); d'(n)=p'(n)-p(n-1) is calculated; a parameter 'tri' is defined by tri=1 if .vertline.d'(n).vertline.&lt;S and tri=.beta. if .vertline.d'(n).vertline..gtoreq.S, where S is a threshold; det.sub.-- tri(n)=.alpha..p'(n).tri is calculated, det.sub.-- tri(n) constituting the current output, representative of the error on the frequency of the carrier.

Method and device for detecting the error on the frequency of a carrier

The method makes it possible digitally to evaluate the phase of any carrier that has been subjected to rPSK modulation subsequent to clock recovery, sampling, and digitizing the in-phase and quadrature components of the samples, by processing that is performed in polar coordinates and that comprises reducing the range over which the phase of each sample is defined to a range of +.pi./r to -.pi./r and then seeking the center of gravity over 2.sup.N successive samples (N being an integer) by performing successive averaging calculations, each time on two values, in application of an N-stage tree structure. Each average of two values is associated with an index indicative of the degree of reliability of the average, and those averages which are associated with a small reliability index are ignored while calculating subsequent averages in the tree structure.

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Korntal, Germany

Ivar Mortensen