Siemens Aktiengesellschaft

Nokia Siemens Networks Gmbh & Co Kg

Volker Sommer

Anja Klein

Reinhard Koehn

Thomas Ulrich

Michael Benz

Joern Krause

Bernhard Raaf

Michael Faerber

Meik Kottkamp

Armin Sitte

Stefan Oestreich

Jean-Michel Traynard

Franz Goldhofer

Holger Landenberger

Sebastian Obermanns

Jorn Krause

Reinhard Kohn

Data rates of simultaneous radio transmissions of data are matched for services over a connection between a base station and a subscriber station by determining a service-specific rate matching factor for one of the services based on a steady-state rate matching factor and a dynamic rate matching factor. The dynamic connection-oriented rate matching factor is based on the steady-state matching factor. The dynamic-connection oriented rate matching factor matches a sum of a volume of data for the services over the connection to a volume of data available in a next frame of data. In addition, the data is compressed or expanded for the one of the services based on the corresponding service-specific rate matching factor.

Method for adapting data rates

The method for operating a radio communications system, which provides for the routing of data of connections via subscriber stations, which occasionally perform the function of routing nodes, provides that one of the subscriber stations indicates, to a routing unit of the radio communications system, its readiness to take on the function of a routing node.

Method for operating a radio communications system with subscriber stations serving as routing nodes, a routing method and a corresponding subscriber station

A method for matching a data rate of simultaneous radio transmissions of data for services over a connection between a base station and a subscriber station. The method includes determining a service-specific rate matching factor for one of the services based on a steady-state rate matching factor and a dynamic rate matching factor. The dynamic connection-oriented rate matching factor is based on the steady-state matching factor. The dynamic-connection oriented rate matching factor matches a sum of a volume of data for the services over the connection to a volume of data available in a next frame of data. The method also includes compressing or expanding the data for the one of the services based on the corresponding service-specific rate matching factor.

Method and apparatus for adapting data rates for services over a connection between a base station and a subscriber station

A method regulates the transmission power of a transmitter in a radio system, for a transmission of data to a receiver by a radio interface. The receiver determines an actual value for a qualitative parameter of the received signal, makes a comparison with a set value and, thereafter, transmits comparison information on the result of the comparison to the transmitter. Adjustment of the transmission power of the transmitter is made based on a correction value for the set value of the qualitative parameter of the received signal, in addition to comparison information from the receiver.

Method for regulating transmission power in a radio system

A method and apparatus for data rate matching, wherein elements to be transmitted are distributed over a number of radio frames via an interleaver and are punctured or repeated, with the puncturing or repetition being carried out in such a manner that, when it is related to the original arrangement of the element before interleaving, the pattern avoids puncturing or repetition of adjacent elements, or of elements which are not far apart from one another.

Method and apparatus for data rate matching

According to the invention, signalling of the used common channels is carried out implicitly via the data rate. Several combinations of channels (spread codes) are only permitted as an alternative for particular data rates of the individual services. Transmission capacity is saved since it is not necessary to reserve individual bits inside the TFCI parameter uniquely for the allocation of said common channels to different connections. The invention is especially useful in the downlink of the FDD modus of UMTS mobile radio systems.

Methods and apparatus for transmitting data in a radio communication system including signaling allocation of a common channel

A method and radio communication system for synchronizing subscriber stations, wherein a time slot is assigned to a number of base stations for transmitting at least one synchronization sequence and adjacent base stations use a different time offset with respect to the beginning of the time slot for transmitting the synchronization sequence. Thus, superposition can be precluded even in the case of a synchronized operation of the base stations. So that the subscriber station can still determine the beginning of the time slot, the time offset is transmitted. The time offset corresponds to the choice of one or more synchronization sequences and/or the sequence of a number of synchronization sequences. The information relating to the time offset is transmitted coded in this manner. A subscriber station receives the synchronization sequence and performs a time synchronization via the time of reception of the synchronization sequence and the detected synchronization sequence designating the time offset and/or the detected sequence of a number of synchronization sequences.

Method and radio communication system for synchronizing subscriber stations

According to the invention, transmissions of the second radio station are received in the first radio station in which the operating instruction for transmission power of the second radio station is determined. The operating instruction is transmitted during a following transmission of the first radio station to the second radio station, whereupon the latter takes into account the operating instruction for power regulation during one of its following transmissions. Contrary to prior art, no time invariable or fixed step size is used. An operating instruction is used instead which is related to a variable step size in transmission power regulation. The variable step size is subscriber-dependent and time-dependent regulated by the radio stations.

Method and radio communication system for regulating power between a base station and a subscriber station

A data communications apparatus, which communicates data frames, includes a converter, which converts a data frame into a data block for transmission. The data block has a size which is different than a size of the data frame. The converter includes a puncturer for puncturing or repeating bits or symbols at positions within the data frame that are determined in accordance with a selection strategy. The selection strategy uses a digital differential analyzer-type algorithm.

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Berlin, Germany

Volker Sommer