Infineon Technologies Ag

Apple Inc.

Intel Mobile Communications Gmbh

Intel Deutschland Gmbh

Thomas Ruprich

Steffen Paul

Andreas Schmidt

Hyung-Nam Choi

Markus Dominik Mueck

Burkhard Becker

Thuyen Le

Louay A Jalloul

Christian Drewes

Dietmar Wenzel

Manfred Zimmermann

In an embodiment, a method for determining the type of a mobile radio base station is provided. The method may include receiving a synchronization message comprising a mobile radio base station identifier, and determining the type of a mobile radio base station using a previously signaled and stored piece of mobile radio base station type determining information indicating a rule as to how the type of a mobile radio base station out of a plurality of types of a mobile radio base station can be derived from a mobile radio base station identifier and the received mobile radio base station identifier.

Methods and apparatuses for determining cell access during a cell search

Method for determinng the type of a mobile radio base station; radio communication terminal and network devices; radio communication smart card device

Method for determining the type of a mobile radio base station; radio communication terminal and network devices; radio communication smart card device

A device detects a frequency offset by a frequency converter arranged to convert a received signal into a sideband and comprises a calculator arranged to calculate a characteristic quantity of the sideband which is a measure of the frequency offset.

Device for detecting a frequency offset

In a method for identification of a multiple antenna transmission mode in a radio receiver, at least two antenna-decoupled data streams (s, s) are produced by means of an antenna decoupling unit in the receiver. Respective first variables (p, p) are calculated for both data streams, and are dependent on the phase change between the data in the respective data stream. An evaluation unit uses these first variables as the basis to decide whether a multiple antenna transmission mode is being used in the transmitter.

Method and apparatus for identification of transmission antenna diversity in a receiver

A base station is operable in a local area communication radio network within the coverage of a wide area communication radio network. The base station comprises a code generator configured to generate an acquisition code, and a modulator configured to modulate the acquisition code onto an acquisition signal to be broadcast by the base station. The acquisition signal is broadcast over a listening channel of the wide area communication radio network. The acquisition code associated with the local area communication radio network is different from all acquisition codes used by the wide area communication radio network.

Radio communications system

A discrete sampling control signal, which influences the sampling time, from a sampling phase selection element is calibrated by definition of quantization intervals for a sampling time error signal. For this purpose, a received signal is shifted through a series of time shifts &#x3c4;in the signal path upstream of the sampling phase selection element. The sampling time errors eassociated with the respective time shifts &#x3c4;are measured. The quantization steps of the sampling control signal that are suitable for the sampling phase selection element are then determined from the relationship obtained between &#x3c4;and e.

Method and circuit arrangement for calibration of a sampling control signal which influences the sampling time of a received signal from a sampling phase selection element

A method for adapting threshold values in an electronic signal processing device, involving a plurality of different threshold values being calculated and being compared with processing variables calculated in the signal processing device, involves calculation of a common correction value which is valid for the various threshold values. The threshold values are then set on the basis of the common correction value.

Method and apparatus for adapting threshold values in electronic signal processing devices

In a method for synchronization of a mobile radio receiver to a base station, the received signal is sampled using oversampling, by which means sample values are obtained from different sampling phases. The oversampled signal is correlated with a local code, with sample values that are associated with a first sampling phase being processed with a frequency offset with respect to sample values that are associated with a second sampling phase.

Method and apparatus for synchronization of a mobile radio receiver to a base station

In a method for synchronization of a mobile radio receiver to a base station, in which a verification step or a plurality of verification steps is or are also carried out in addition to the synchronization steps and one or more identification step or steps which may be present, at least one of the verification steps is carried out in parallel with a synchronization step and/or with an identification step.

Method and device for synchronizing a mobile radio receiver with a base station involving parallel verification

An apparatus for readjustment of a sampling time in a radio receiver includes a component for determination of any sampling time error in a discrete-value received signal that emits a sampling time error signal. A filter arrangement is provided that includes a multi-rate filter that filters the sampling time error signal. A correction element receives the discrete-value received signal and the filtered sampling time error signal, and emits a discrete-value received signal whose timing has been corrected in accordance with the sampling time error.

Apparatus and method for readjustment of a sampling time in radio receivers

In a method and an apparatus () for transmission diversity mode detection in a mobile radio receiver using a decision function, the decision function which is used for detection of the transmission diversity mode is based on the coherent processing of two successive input signal data tuples {r(k);r(k+1)} and {r(k+2);r(k+3)} and recording of a phase offset between the two tuples.

Methods and apparatuses for detecting the TX diversity mode for mobile radio receivers

In a method for carrying out a plurality of correlation procedures in a mobile radio system, sample values which have been written to a data memory (DS) are read using a predetermined reading rule. Two correlation procedures are carried out on the basis of the sample values which have been read. This reading rule is in this case independent of the correlation procedure to be carried out.

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Munich, Germany

Thomas Ruprich