Siemens Aktiengesellschaft

Sony Corporation

Nokia Solutions and Networks Oy

Institut Fur Rundfunktechnik Gmbh

Christian Menzel

Martin &Ouml;ttl

Jean-Michel Traynard

Martin Öttl

Thomas Ulrich

Jari Hulkkonen

Anja Klein

Michael Benz

Armin Sitte

Jörn Krause

Ralf Haferbeck

Enric Mitjana

Axel Gabe

Christoph Mecklenbräuker

Reinhard Köhn

Erik Newton

Dave Randall

Javier Morgade Prieto

Jordi Joan Gimenez Gandia

The invention relates to an OFDM-based transmitter () for transmitting a multiplex (M) of one or more radio information signals in a radio transmission mode via a transmission medium. According to the invention, the transmitter comprises an input () for receiving the multiplex of radio information signals, an encoding unit () for encoding a block of data of the multiplex of radio information signals and for generating an encoded block of data (), and a multiplexer unit () for incorporating the encoded block of data in a media radio subframe of a radio transmission signal. According to the invention, the transmitter is furthermore designed to receive a second multiplex (M) of one or more radio information signals. The encoder unit () according to the invention is furthermore designed to encode a block of data of the second multiplex of radio information signals and to generate a second encoded block of data (), and the multiplexer unit () is furthermore designed to incorporate the second encoded block of data in the same media radio subframe of tlic radio transmission signal (Sout).

Transmitter and/or receiver for transmitting and/or receiving radio information signals

A receiving node of a first wireless communications system is co-located with a node of a second wireless communications system, said first and second wireless communications systems are configured with frequencies on a shared frequency band. Information identifying a node of the first wireless communications system transmitting on the shared frequency band is received. The received information identifying the transmitting node as an interfering node to the co-located node of the second wireless communications system is transmitted to an entity controlling configuration of the shared frequency band.

Configuration of a shared frequency band between wireless communications systems

A method establishes a connection between a source network with a source network resource manager and a target network with a target network resource manager. According to the method, a connection control unit of the source network transmits a connection establishment signal to a connection control unit of the target network and&#x2014;parallel to this&#x2014;a reservation request to the target network resource manager. The target network resource reserves the requested resources and forwards the reservation request towards the target network resource manager, which also reserves the requested resources and transmits reservation information regarding the success of the resource reservations to the connection control unit of the target network.

Method and installation for executing a handover in mobile data transmission systems using data duplication

A method and system for configuring a radio interface between a mobile station and a base station in a time-division multiplex mobile radio system for packet data transmission, wherein time slots for signalling are allocated by the base station to the mobile stations in accordance with a sequence which can be predetermined, independent of packet data transmission. The time for configuration of the radio interface also can be reduced by a plurality of time slots for signalling being combined to form a signalling block, or the signalling to a plurality of mobile stations being carried out within one time slot. This signalling is used to define and set the timing advance.

Method and system for configuring radio interface in a communication system

For a communication system (e.g. UMTS with CDMA radio interface), the invention draws a distinction between services with high and low data rate dynamics and uses a matched type of signaling for the transport formats currently being used. The data rate of the data for a service can fluctuate greatly and/or rapidly over time (high dynamics), or may fluctuate only a little and/or slowly (low dynamics). The data for the services are transmitted via a common physical channel, with in-band signaling being used for signaling the transport format for the services with high data rate dynamics, and with signaling in a separate channel being used for the services with low data rate dynamics.

Method and communications systems for transmitting data for a combination of several services via jointly used physical channels

The subject matter of the invention proceeds from an encryption of the information for the radio transmission in an access network (ACN) as well as an authentication in at least one core network (CON, CON). Inventively, public keys (PUK-MT, PUK-BS) are mutually transmitted between a mobile station (MT) and the base station (BS) via the radio interface (AI), and the public key (PUK-MT or PUK-BS) received by the base station (BS) or mobile station (MT) is employed for the encryption of the information to be subsequently sent via the radio interface. On the basis of a private key (PRK-MT, PRK-BS) that is allocated to the transmitted, public key (PUK-MT, PUK-BS) in the mobile station (MT) or in the base station (BS), the encrypted information received by the mobile station or base station can be deciphered. Following the encryption procedure, a subscriber identity mobile card (SIM) of the mobile station implements the authentication of the respective core network (CON, CON), and authentication equipment (AC, AC') of the core network implements the authentication of the subscriber on the basis of the mutually transmitted, encrypted information.

Method and communications system for ciphering information for a radio transmission and for authenticating subscribers

A method and system for configuring a radio interface between a mobile station and a base station in a time-division multiplex mobile radio system for packet data transmission, wherein time slots for signalling in the uplink direction are allocated by a base station to the mobile stations in accordance with a sequence which can be predetermined independently of packet data transmission. The fixed allocation of a time slot for signalling, in addition to mobile stations to which no physical channel is currently allocated, allows the base station to carry out continuous measurement relating to the radio interface. Thus, when packet data transmission resumes, immediately valid measurements are available for configuration of the radio interface.

Method and system for configuring a radio interface

In methods for signal transmission, a first radio burst is inventively transmitted in a time slot of the radio interface, in which a transmission-side synchronization of the transmission of the first radio burst occurs, so that the first radio burst arrives at the receiving radio station at a predetermined point in time within the time slot. At least one second radio burst that can be interpreted separately from the first radio burst is transmitted in the same time slot. The invention can be utilized for designing the access method (random access) in packet data services (GPRS) of the GSM mobile radio telephone system or in a TDD transmission mode of the third mobile radio telephone generation. This method may also be used to transmit many very short messages.

Reception time of messages in access channels of TDMA mobile communication system controlled by transmitting device

In a communications network, a first address information is transmitted from a first communication terminal equipment to a first switching node for setting up a communication connection, whereby first identification features are contained in the first address information. The first switching node interprets the first address information with the first identification features and derives a second address information for addressing a first address converter therefrom. At least parts of the first identification features are communicated to the first address converter. Second identification features are generated from the first identification features, said second identification features serving the purpose of addressing a second switching node. The communication connection between the first and second switching node is set up with the second identification features.

Method for establishing a communication link

For configuration of a radio interface between a mobile station and a base station in a time-division multiplex mobile radio system for packet data transmission, time slots for signaling are allocated by a base station to the mobile stations in accordance with a sequence that can be predetermined in the downlink direction, and the time for configuration of the radio interface can be reduced by a plurality of time slots being combined to form a signaling block for a plurality of mobile stations.

Process and base station system for configuring an air interface between a mobile station and a base station in a time-division multiplex mobile radio telephone system for packet data transmission

In order to call mobile'stations, mobile stations are, according to the invention, allocated to time slots for calling on the basis of subscriber-specific profiles. The number of time slots allocated for calling within a macroframe can be set individually for the mobile, stations. The requirement for time slots allocated for calling is thus covered individually for each mobile station. For time-critical applications, shorter delay times can be achieved using the method according to the invention.

Method and base station system for calling mobile stations for the transmission of packet data

A method and system for configuring a radio interface between a mobile station and a base station of a time-division multiplex mobile radio telephone system for a packet data transmission, wherein, the mobile stations are additionally identified with brief identifiers and time slots for signaling for the upstream direction are allocated to the mobile stations. The allocation of one or more time slots for signaling for the upstream direction occurs according to a prescribable sequence, wherein the allocation occurs with indicator messages that contain abbreviated identifiers and time slot designations. The allocation is thus independent of a sequence of the packets data transmission from or to the mobile station.

Method and system for configuring a radio interface in a communication system

In a method for transmitting data via a radio interface between base stations and subscriber stations in a radio communications system, the time slots in a frame are allocated to different base stations such that the base stations transmit exclusively in the time slots in the downlink direction which are allocated to them, but also receive in those time slots in the uplink direction which are not allocated to them. It is thus possible to combine the received signals from at least two base stations with one another. Without any significant additional complexity, the existing base stations, which are on standby during some time slots, can be used to provide a macrodiversity reception. The transmission quality is improved by the plurality of propagation paths which are evaluated in the uplink direction. A radio communications system is also provided.

Method and system for data transmission with a macrodiversity reception

A method and system of transmitting data in a cellular radio system wherein in order to transmit data packets in a cell between a base station and a mobile station of a cellular radio system corresponding to a time division multiplex method in time slots of a time division multiplex frame, after one prescribed time period, the transmission of the data is reduced during one time interval. During these time intervals, base stations in adjacent cells are radio-monitored.

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Maisach, Germany

Christian Menzel