Abstract: The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively a first primary station having a first antenna array dedicated to the first cell and a second primary station having a second antenna array dedicated to the second cell, for communicating with a plurality of secondary stations, the method comprising the step of (a) providing with a co-operative beamforming transmission from the first and second primary stations to at least one first secondary station, wherein step (a) includes (a1) the first secondary station signaling at least one channel matrix to at least one of the first and second primary stations, and (a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the at le

Abstract: The present invention relates to the signaling of channel quality information in a multi-beam transmission system, wherein a plurality of beams are simultaneously transmitted and a plurality of sets of channel quality information are transmitted for controlling independently the transmission rate on the different beams. Determined are beams with a different quality resulting in different effects of errors in the transmissions of the channel quality information for the beams. Said different effects are exploited for reducing a signaling overhead of the channel quality information for the beams.

Abstract: A packet data transmission system comprises primary stations (PS) having signal transmitting and receiving means and antennas (PA1 to PA4) for propagating downlink signals and receiving uplink signals and a plurality of secondary stations (SS) able to roam within the coverage areas of the primary stations. Each secondary station (SS1) has signal transmitting and receiving means, a predetermined number of antennas (SA1 to SA4), and means for monitoring its radio environment. Information about the radio environment is relayed as an uplink signal to the respective primary station which modifies its mode of transmission of packet data signals. The secondary station in response to the modified mode of transmission of the downlink signals adapts its receiver resources to process the packet data signals and effect cancellation of any interference.

Abstract: A method of communicating between a primary station and a plurality of secondary stations is described. According to one aspect, the secondary station monitors a control channel search space for a control message from a primary station intended for the communication device. According to an aspect, the control message is indicative of a resource allocated to the secondary station for communicating with the primary station and the resource corresponds to a component carrier. The secondary station determines a control channel from the control channel search space having the control message intended for the secondary station and determines, based on a presence of the control channel on a specific component carrier, the indication of a resource set from a plurality of resources sets in which the resource allocated to the secondary station is located.

Abstract: The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising (a) the secondary station being configured to search a first configuration of search spaces, said search spaces comprising a number of resource sets, where at least one resource set might be used to transmit a message to the secondary station, (b) configuring the secondary station by means of a configuration message to search a second configuration of search spaces, (c) the secondary station in response of the reception of the configuration message entering into a transitional configuration mode, wherein the secondary station searches partly the first configuration of search spaces and the second configuration of search spaces.

Abstract: The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel.

Abstract: The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising (a) the secondary station being configured to search a first configuration of search spaces, said search spaces comprising a number of resource sets, where at least one resource set might be used to transmit a message to the secondary station, (b) configuring the secondary station by means of a configuration message to search a second configuration of search spaces, (c) the secondary station in response of the reception of the configuration message entering into a transitional configuration mode, wherein the secondary station searches partly the first configuration of search spaces and the second configuration of search spaces.

Abstract: The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel.

Abstract: The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively a first primary station having a first antenna array dedicated to the first cell and a second primary station having a second antenna array dedicated to the second cell, for communicating with a plurality of secondary stations, the method comprising the step of (a) providing with a co-operative beamforming transmission from the first and second primary stations to at least one first secondary station, wherein step (a) includes (a1) the first secondary station signaling at least one channel matrix to at least one of the first and second primary stations, and (a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the at le

Abstract: The present invention relates to a method for operating a network comprising a first primary station and a second primary station, wherein the first primary station serves a first cell including at least one first secondary station communicating with the first primary station and wherein the second primary station serves a second cell including at least one second secondary station communicating with the second primary station, the method comprising the steps of (a) the first primary station and the second primary station transmitting payloads in a synchronous manner on at least one set of resources, (b) the first and the second primary stations transmitting control data on the at least one set of resources respectively to the first secondary station and to the second secondary station, wherein the method further comprises (c) at least the first primary station rendering the transmission of control data to the first secondary station orthogonal to the transmission of control data from the second primary sta

Abstract: The invention relates to a method for operating a secondary station to search for PDCCH in search spaces on a plurality of component carriers, wherein the component carriers comprise an anchor carrier and a plurality of other carriers and the search spaces change in a preconfigured way with the time.

Abstract: A control method for a communication network that has a transmitter with an array of transmit antennas and that has at least one receiver communicating with the transmitter. The receiver performs a channel measurement for a receive antenna of the receiver using a signal transmitted from the transmitter to the receiver. The receiver further determines channel coefficients for each of an array of transmit antennas at the transmitter from an output of the channel measurement, and then applies a linear, reversible and orthogonal transform to the channel coefficients, thus ascertaining channel component coefficients indicative of the individual weight of respective channel components in a transform domain. The receiver then selects one or more channel components in the transform domain and communicates to the transmitter a control signal indicative of one or more preferred channel components or a magnitude of one or more channel component coefficients, or both, in quantized form.

Abstract: The present invention relates to method for communicating in a network comprising the step a) of a primary station transmitting to at least one secondary station on a downlink control channel an indication related to a resource allocated to said secondary station in accordance with a semi persistent schedule, wherein the step a) comprises the step of transmitting to the secondary station at least two messages including at least part of the indication in one subframe.

Abstract: The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively a first primary station having a first antenna array dedicated to the first cell and a second primary station having a second antenna array dedicated to the second cell, for communicating with a plurality of secondary stations, the method comprising the step of (a) providing with a co-operative beamforming transmission from the first and second primary stations to at least one first secondary station, wherein step (a) includes (a1) the first secondary station signaling at least one channel matrix to at least one of the first and second primary stations, and (a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the a

Abstract: A method of communicating between a primary station and a plurality of secondary stations is described. According to one aspect, the secondary station monitors a control channel search space for a control message from a primary station intended for the communication device. According to an aspect, the control message is indicative of a resource allocated to the secondary station for communicating with the primary station and the resource corresponds to a component carrier. The secondary station determines a control channel from the control channel search space having the control message intended for the secondary station and determines, based on a presence of the control channel on a specific component carrier, the indication of a resource set from a plurality of resources sets in which the resource allocated to the secondary station is located.

Abstract: The present invention relates to the signaling of channel quality information in a multi-beam transmission system, wherein a plurality of beams are simultaneously transmitted and a plurality of sets of channel quality information are transmitted for controlling independently the transmission rate on the different beams. Determined are beams with a different quality resulting in different effects of errors in the transmissions of the channel quality information for the beams. Said different effects are exploited for reducing a signaling overhead of the channel quality information for the beams.

Abstract: The present invention relates to a method for communicating in a network comprising at least one primary station communicating with at least one secondary station, comprising (a) the secondary station sending to the primary station a buffer status report representative of the amount of data in a buffer of the secondary station, (b) in absence of acknowledgement from the primary station, the secondary station retransmitting the buffer status report and, (c) if a maximum number of retransmissions has been reached, the secondary station sending a further buffer status report to the primary station.

Abstract: The present invention relates to a method or communicating between a primary station and a plurality of secondary stations, comprising the primary station providing a plurality of resource sets, the primary station configuring a secondary station to search for a control channel on at least one of a plurality of search spaces each corresponding to a resource set, wherein at least part of one of the search spaces is used to transmit a control message to a secondary station, the control message being indicative of a resource allocated to the secondary station for transmitting to the primary station or receiving from the primary station data, and wherein the secondary station deduces from the part of the search space used for transmitting the control message an indication of the resource set from the plurality of resource sets within which the allocated resource is located.

Abstract: The present invention relates to a method for communicating in a network, comprising a) a secondary station preparing the transmission to a primary station of a message comprising at least a data field for containing data in an allocated resource, said resource comprising a plurality of resource blocks, and b) if the size of the allocated resource is bigger than required for the size of the message, the secondary station dividing the allocated resource in a first portion and a second portion, each portion comprising at least one resource block, c) the secondary station transmitting the message to the primary station in the first portion of the resource, d) the secondary station preventing from transmitting in the second portion of the resource.

Abstract: The present invention relates to the signaling of channel quality information in a multi-beam transmission system, wherein a plurality of beams are simultaneously transmitted and a plurality of sets of channel quality information are transmitted for controlling independently the transmission rate on the different beams. Determined are beams with a different quality resulting in different effects of errors in the transmissions of the channel quality information for the beams. Said different effects are exploited for reducing a signaling overhead of the channel quality information for the beams.