Koninklijke Philips Corporation N.v.

Alcatel Lucent

Sharp Corporation

St-ericsson Sa

U.S. Philips Corporation

Nxp B.v.

Nokia of America Corporation

Matthew P J Baker

Timothy J Moulsley

Bernard Hunt

Paul Bucknell

Sigen Ye

Filippo Tosato

Fang-Chen Cheng

Milos Tesanovic

Shin Horng Wong

Olivier J-m Hus

Teck H Hu

Domenico Porcino

Feng Han

Min Zhang

Thorsten Wild

Howard C Huang

Mohammad Riaz Khawer

Christian Gerlach

Boris Skoric

Edward S Eilley

Ludovicus M G M Tolhuizen

Timothy J Moulsely

Rupert Rheinschmitt

Alistair Stewart Cameron

Olivier J M Hus

Xiaobo Zhang

Seau Sian Lim

Christoph Herrmann

Gang Wu

Yonggang Du

Ni Ma

Qi Zhou

Sarah Boumendil

Federico Boccardi

Olivier Jean-Michel Hus

Deborah L Raynes

Timiothy J Moulsley

Paul Brucknell

A base station requires one or more channels in an unlicensed frequency band for a predetermined time interval and schedules one or more user equipment for uplink transmission on the one or more channels during the predetermined time interval. User equipment transmits, over a licensed frequency band, a request for resources for uplink transmission in an unlicensed frequency band. The user equipment receives scheduling information indicating a first portion of a predetermined time interval that is allocated to the first user equipment for uplink transmission on one or more channels in the unlicensed frequency band.

Network controlled acquisition of uplink channels in unlicensed frequency bands

A transmitting device performs a channel assessment in a previous sub-frame in an unlicensed carrier. After a successful channel assessment, the transmitting device starts a data transmission. The transmitting device transmits a control message for indicating the data transmission in (E)PDCCH. The control message may include the starting time of the data transmission and/or at least one transmission characteristic in the previous sub-frame. The transmission device may transmit an initial control message for indicating a potential data transmission being started in the sub-frame in which the initial control message is transmitting. Method and apparatus enable (E)CCA to take place at any time, and data transmission to start earlier than the next sub-frame boundary after a successful completion of (E)CCA, thus improving the data transmission capacity, especially in circumstances when the maximum length of transmission is constrained.

Method and apparatus for supporting a partial sub-frame data transmission in LTE systems

A radio station comprises means for allocating resources for communication with at least one other station, and including means for mapping data to be transmitted from at least the radio station to the at least one other station, and means for applying a cyclic shift to the data mapping, wherein this cyclic shift is adjusted depending on the number of data blocks to be mapped. A possible implementation concerns the mapping of the DVRB (Distributed Virtual Resource Block) in OFDM.

Method and device for allocating resource in an OFDM network

The present invention relates to a method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, (b) at the secondary station, after the expiration of a time period starting at arrival of the data packet, transmitting to the primary station a request for an uplink transmission resource if a grant of uplink transmission resource is not received during the said time period, (c) at the primary station, granting to the secondary station an uplink transmission resource.

Method for communicating and radio station therefor

A radio station () receives a first signal (R) indicative of a scheduled resource which will be used to transmit a second signal (D, D) to the radio station (). In response to receiving the first signal (R), the radio station () is adapted to receive the second signal (D, D) using the scheduled resource and, prior to receiving the second signal (D, D), transmit an indication of received signal quality (CQI).

Signal quality reporting

A packet data transmission system comprises primary stations (PS) having signal transmitting and receiving means and antennas (PAto PA) 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 (SS) has signal transmitting and receiving means, a predetermined number of antennas (SAto SA), 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.

Packet data transmission in a MIMO system

A method is provided for assisting data transmission on a first carrier by indicating a termination point of data transmission in a transmitting device and apparatus thereof, wherein the method comprises the steps of: A. transmitting data on the carrier to a receiving device in a first subframe; and B. transmitting downlink control information to the receiving device; wherein the downlink control information includes a termination point indication for indicating a termination point of the data in the first subframe. The method and apparatus could improve the utilization of subframe and transmission capacity, and enable LTE to satisfy the regulations for unlicensed operation with high spectral efficiency.

Method for assisting data transmission on a first carrier by indicating a termination point of data transmission

In a mobile communication system comprising a base station () and a plurality of mobile stations () and operating closed loop transmitter power control, power control commands for transmission on an uplink are derived from measurements made on received downlink signals comprising non-predetermined data values. Optionally the non-predetermined data values may comprise power control commands for uplink transmit power control.

Radio communication system, method of operating a communication system, and a mobile station

A method of indicating to a secondary station a set of at least one available transmission resource among a predetermined plurality of transmission resources, each set being described by a plurality of parameters, said method comprising the steps of: &#x2014;signalling to the secondary station an association between a control signalling channel and at least one parameter describing a set of transmission resources; coding into an address at least one remaining parameter from the plurality of parameters describing the said set of transmission resources; &#x2014;transmitting the address to the secondary station using the said control signalling channel.

Addressing available resources for HSDPA accesses

The present invention relates to a method for transmitting a plurality of data streams from a primary station to a secondary station on a plurality of transmission beams, said method comprising: at the secondary station measuring the channel quality corresponding to each transmission beam, and signalling at a first rate to the primary station in a first indicator a CQI report representative of the quality of the beams, and signalling at a second rate, greater than the first rate, in a second indicator a number of data streams that can be transmitted on the transmission beams; at the primary station transmitting the data streams on the basis of the first and second indicators.

Methods for transmitting data in a mobile system and radio stations therefor

A method is provided for receiving, at a receiving device, a control information message from a transmitting device. An example method includes determining at a user equipment (UE) a status of the UE and monitoring at the UE based on the status either a common search space (CSS) of a cell or a UE-specific search space (USS) of the cell. The cell is a cell of a secondary eNodeB for communicating with the UE. The method may further include monitoring a CSS and a USS of a cell of a master eNodeB (MeNB) simultaneously while monitoring either the CSS or the USS of the cell of the secondary eNodeB. The status may be a status of the UE with respect to a Random Access Channel (RACH) procedure with the cell.

Common search space in secondary ENBS

A communication system, such as UMTS, comprises a scheduler () in a first station (PS) which is able to control a user equipment (UEUE). The scheduler when operating in a data transmission mode, such as HSUPA (High-Speed Uplink Packet Access) controls the user equipment with combinations of absolute grants (AG) and relative grants (RG). The relative grants serve to adapt a transmission parameter relative to a reference value. The reference value for the relative grant is selected dependent on a property of one or more of the grants. Such a property may comprise the absolute grant being an all process grant or a single process grant.

Method of operating a communication device and a system, a communication device and a system including the communication device

A method for transmitting data from a primary station to a secondary station, includes at the primary station signaling to the secondary station that a data message is to be received, and at the primary station transmitting the data message. The time of transmission of the data message relative to the time of the signaling depends on a state of the secondary station.

Method for transmitting data in a network

In UMTS WCDMA a new RACH-based uplink is being discussed. The resources defined for this new 'E-RACH' need to be signalled to the UE. This should avoid disturbing the signalling to existing terminals, i.e. that are not aware of E-RACH. This could be done for E-RACH by repeating the kind of signalling defined for R99 RACH and transmitted on the BCH (Broadcast Control Channel). However, this would imply a significant extra load on the BCH, which is undesirable. The invention is based on the recognition that E-DCH resources can be defined efficiently at least partly with reference to the R99 RACH resources. This can be done in such a way that no additional signalling is required on the BCH.

Method for signalling random access channels

The present invention relates to a method for communicating in a network, said network comprising a primary station and at least a first secondary station, wherein the first secondary station transmits to the primary station an indication of a first plurality of precoding vectors, wherein the number of first precoding vectors is greater than a preferred rank of transmission from the primary station to the first secondary station.

Method for communicating in a MIMO network

Growing community of inventors

Canterbury, United Kingdom

Matthew P J Baker