Alcatel Lucent

Nokia Solutions and Networks Oy

Andreas Weber

Oliver Stanze

Hajo Bakker

Siegfried Klein

Christian Gerlach

Uwe Doetsch

Volker Braun

Bozo Cesar

Hajo-Erich Bakker

Antoni Bestard Bennasar

Martin Link

Kamakshi Sridhar

Teck H Hu

Thorsten Wild

Stephen Kaminski

Dietrich Zeller

James Paul Seymour

Hardy Halbauer

Silvio Mandelli

Paolo Baracca

Danish Aziz

Ulrich Barth

Jafar Mohammadi

Uwe Dötsch

Mahmoud Ramezani-Mayiami

Federico Boccardi

A modulation and coding scheme for a transmission to an apparatus may be selected by at least sampling a posteriori probability distribution that has been calculated using a first probability distribution and a second probability distribution. The first probability distribution is calculated using at least a newest first feedback and a plurality of older first feedbacks, a first feedback indicating channel quality. The second probability distribution is calculated using at least a newest second feedback and a plurality of older second feedbacks, a second feedback indicating a success or failure of an earlier transmission transmitted from the apparatus.

Selecting modulation and coding scheme

The invention concerns a method for coordination of transmission from a first and at least one further base station (MP), wherein said first base station (MP) evaluates the usage by said at least one further base station (MP) of at least one subframe, and said first base station (MP) uses said at least one subframe for transmission dependent on the evaluated usage by said at least one further base station (MP) of said at least one subframe, and a base station therefore.

Method for coordination of transmission from base stations, and a base station therefor

A method for interference reduction in a radio communication system is disclosed. The method includes receiving from a mobile station indications of radiation beams that are transmitted by a first base station of the radio communication system and that fulfill or exceed a predefined quality criterion at the mobile station, when the mobile station is attached to the first base station and when the mobile station is located within a first overlapping coverage area of the first base station and of a second base station of the radio communication system, and determining at least one radio resource to be unused or to be transmitted with a limited transmission power by the first base station for at least one of the radiation beams based on the received indications for serving the mobile station or a further mobile station by the second base station with the at least one radio resource.

Method for interference reduction in a radio communication system, processing unit, and wireless access network node thereof

The embodiments of the invention relate to a method for operating a first base station (BS) in a radio communication system (RAN). The method contains transmitting first reference signals via a first radiation beam (BM-BS) being directed towards a first direction and at least second reference signals via at least one second radiation beam (BM-BS, . . . , BM-BS) being directed towards at least one second direction. The method further contains receiving for a hand over of a mobile station (MS) from a second base station (BS) being a serving base station of the mobile station (MS) to the first base station (BS) an indication for a radiation beam being selected from a group of radiation beams comprising the first radiation beam (BM-BS) and the at least one second radiation beam (BM-BS, . . . , BM-BS) for applying the selected radiation beam as an initial radiation beam at the first base station (BS) for serving the mobile station (MS). The method even further contains scheduling radio resources for the initial radiation beam for serving the mobile station (MS) based on the indication. The embodiments further relate to a method for operating a second base station (BS) in a radio communication system (RAN), to a first base station (BS) for operation in a radio communication system (RAN) and to a second base station (BS) for operation in a radio communication system (RAN).

Methods for operating a first base station and a second base station in a radio communication system, first base station and second base station thereof

The invention relates to a method for coordinating at least one first transmission from a multipoint transmitter or to a multipoint receiver and at least one second transmission from a single-point transmitter to a single-point receiver in a radio communication system. The method comprises the step of reserving at least one first radio resource (SI-Fto S-F, S-F, SI-F, SI-F, SI-F-BWto SI-F-BW, SI-F-BW) for the at least one first transmission for at least two serving areas of the radio communication system and further reserving at least one second radio resource (S-Fto S-F, SI-F-BWto SI-F-BW, SI-F-BW, SI-F-BWto SI-F-BW, SI-F-BW) for the at least one second transmission for the at least two serving areas). The invention further relates to a network node (NS, NS) for coordinating at least one first transmission from a multipoint transmitter or to a multipoint receiver and at least one second transmission in a radio communication system and to a mobile station for use in a radio communication system.

Method for coordinating at least one first transmission from a single-point transmitter to a single-point receiver and at least one second transmission from a multipoint transmitter or to a multipoint receiver in a radio communication system, network node and mobile station thereof

Embodiments relate to an apparatus, a method and a computer program for a base station transceiver () for a mobile communication system (). The base station transceiver () is operable in a coverage area () of another base station transceiver (). The other base station transceiver () is operable to transmit radio signals in a repetitive sequence of radio frames, wherein in at least one of the radio frames in the sequence the other base station transceiver () is operable to transmit with a reduced transmission power or to suspend transmission compared to at least one other of the radio frames in the sequence. The apparatus () comprises an interface () operable to receive sequence information on the at least one of the radio frames in the sequence, during which the other base station transceiver () is operable to transmit with the reduced transmission power or to suspend transmission compared to the at least one other of the radio frames in the sequence. The apparatus () further comprises a controller () operable to determine configuration information on a measurement configuration for a mobile transceiver () associated to the base station transceiver (), wherein the configuration information comprises information on a signal quality measurement at the mobile transceiver () on radio signals received from the base station transceiver (). The signal quality measurement is performed during a time interval with a duration being predetermined by the mobile transceiver (). The controller () is further operable to determine duration information on the duration of the time interval and the controller () is operable to determine the configuration information based on the sequence information and the duration information.

Apparatus, method and computer program for a base station transceiver

The embodiments of the invention relate to a method for operating a mobile station (MS) in a radio communication system (RAN). The method contains receiving first radio resource information for a transmission of first reference signals via a first radiation beam (BM-BS) being directed towards a first direction by at least one neighboring base station (BS) of a serving base station (BS) of the mobile station (MS) and at least second radio resource information for a transmission of at least second reference signals via at least one second radiation beam (BM-BS, . . . BM-BS) being directed towards at least one second direction by the at least one neighboring base station (BS). The method further contains receiving the first reference signals based on the first radio resource information, receiving the at least second reference signals based on the at least second radio resource information, determining first quality information of the first radiation beam (BM-BS) based on the received first reference signals and at least second quality information of the at least second radiation beam (BM-BS, . . . BM-BS) based on the received at least second reference signals, and transmitting at least one of the first quality information and the at least second quality information to the serving base station (BS). The embodiments further relate to a method for operating a base station (BS) in a radio communication system (RAN), to a mobile station (MS) for operation in a radio communication system (RAN) and to a base station (BS) for operation in a radio communication system (RAN).

Methods for operating a mobile station and a base station in a radio communication system, mobile station and base station thereof

Embodiments relate to apparatuses, methods and a computer programs for a mobile transceiver () and a base station transceiver (). The mobile transceiver apparatus () comprises means for receiving () radio signals from two or more base station transceivers, the means for receiving () further having a receive sensitivity determining a possibility to decode data from a radio signal of one of the two or more base station transceivers, while also receiving radio signals from the other of the two or more base station transceivers. The mobile transceiver apparatus further comprises means for providing () sensitivity information on the receive sensitivity to an associated base station transceiver (). The base station transceiver apparatus () comprises means for receiving () the sensitivity information on the receiver sensitivity and means for determining () configuration information on a measurement configuration for the mobile transceiver (). The configuration information comprises information on a signal quality measurement at the mobile transceiver () on radio signals received from another base station transceiver and the configuration information comprises bias information for biasing the signal quality measurement, the bias information is based on the sensitivity information.

Apparatuses, methods and computer programs for a mobile transceiver and a base station transceiver

The invention concerns a method for beam coordination between a first base station (M) and a second base station (P), wherein interfering beams (B-B) transmitted from the first base station (M) are determined based on measured reference signals, dependent on a ranking of interfering beams (B-B) which shall be restricted in use, a restriction of a use of radio resources in the first base station (M) in at least one ranked interfering beam (B) is performed, and user terminals (UE, UE) served by the second base station (P) are scheduled on radio resources which are restricted in use in the first base station (M) in said at least one ranked interfering beam (B), a base station and a user terminal therefor.

Method for beam coordination, and a base station and a user terminal therefor

Embodiments relate to an apparatus, a method and a computer program for a base station transceiver () for a mobile communication system (). The base station transceiver () is operable in a coverage area () of another base station transceiver (). The other base station transceiver () is operable to transmit radio signals in a repetitive sequence of radio frames, wherein in at least one of the radio frames in the sequence the other base station transceiver () is operable to transmit with a reduced transmission power or to suspend transmission compared to at least one other of the radio frames in the sequence. The apparatus () comprises an interface () operable to receive information on the at least one of the radio frames in the sequence and a controller () operable to determine information on a measurement configuration for a mobile transceiver () associated to the base station transceiver () based on the received information. The information on the measurement configuration comprises information on a periodic signal quality measurement at the mobile transceiver () on radio signals received from the base station transceiver () during a time interval. The information on the measurement configuration comprises information positioning the time interval in the sequence to the same position for at least two subsequent signal quality measurements.

Embodiments provide methods, computer programs and apparatusesfor a base station transceiverand a relay station transceiverin a mobile communication network, which comprises the base station transceiver, a mobile transceiverbeing associated with the base station transceiverand a relay transceiverbeing associated with the base station transceiver. The base station transceiver apparatus comprises a receiverfor receiving information on a handover request from the mobile transceiver, the information on the handover request indicating that the mobile transceiveris in a situation in which a reception quality of the signals of the relay transceiverwould allow a re-association of the mobile transceiverto the relay transceiver. The base station transceiver apparatusfurther comprises a schedulerfor scheduling, subsequent to the reception of the handover request, the mobile transceiverfor transmission from the base station transceiverto the mobile transceiveron a radio resource on which transmission of the relay transceiveris suspended. The apparatusfor the relay transceiver comprises a reception unitfor receiving information on a resource assignment from the base station transceiverand a scheduling unitfor scheduling the mobile transceiverfor transmission or reception on a radio resource which is indicated in the information on the resource assignment.

Apparatuses, methods and computer programs for a base station transceiver and a relay station transceiver

The present invention concerns a method of providing communication over a mobile communication network () and components for providing communication over the communication network (). The network () includes two or more fixed nodes () each operating a fixed radio cell () for serving one or more user equipments () via a first radio interface (). Each of these fixed radio cells () is identified by a physical cell ID () selected out of a set of N physical cell IDs. In addition, the network () includes one or more mobile relay nodes () served by the one or more fixed nodes () via a second radio interface (). The mobile relay nodes () each operate a mobile radio cell () for serving one or more user equipments () via a third radio interface (). Each of these mobile radio cells () is identified by a physical cell ID (c) selected out of the set of N physical cell IDs. The method includes the step of dynamically assigning a physical cell ID () of the set of N physical cell IDs to the one or more mobile radio cells ().

Method of providing communication over a mobile communication network

A method of determining a bias parameter for a heterogeneous network including a small cell, a macro cell, and one or more user equipment (UEs), the small cell being underlaid with respect to the macro cell, includes determining, at a base station of the small cell, a loading state of the macro cell; and setting, at the base station, the bias parameter based on the determined loading state. A method of determining a cell border window (CBW) for the small cell, the small cell being underlaid with respect to the macro cell, the small cell having a plurality of attached UEs which are divided into inner cell UEs and border cell UEs, includes determining, at the base station, a difference value based on utilization values of the inner cell UEs and the border cell UEs; and adjusting the CBW based on the difference value and a threshold value.

Method and apparatus for providing increased small cell resource utilization

The invention concerns method for scheduling of user terminals (T) to subcarriers in a multi-cell or multi-sector network using FDM transmission with interference coordination and with the frequency band used for FDM transmission being subdivided into at least two frequency subsets (F, F. . . FR), whereby the data throughput of user terminals (T) is measured or modeled by means of the signal to interference ratio measured by said user terminals (T) dependent on the frequency subset (F, F. . . FR), subcarriers are allocated preferably to user terminals (T) with a high signal to interference ratio on said subcarriers, and subcarriers are allocated in clusters to the user terminals (T), whereby all clusters offer the same data throughput for the respective user terminal (T), a base station (BS), a user terminal (T) and a network therefor.

Method for scheduling of user terminals to subcarriers in a multi-cell or multi-sector network using FDM transmission, a base station, a user terminal and a network therefor

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Stuttgart, Germany

Andreas Weber