Abstract: A multi-user receiver which uses at least two antenna elements and in which the influence of interference is reduced, the receiver comprises: means (200) for pre-filtering a wideband antenna signal, the pre-filtering means being determined on the basis of a spatial covariance matrix estimate, which spatial covariance matrix estimate is obtained from wideband antenna signals by sampling, arranging sampled values into a signal vector and by multiplying the signal vector by its conjugate transpose vector, means (210, 218) for removing the whitening from signals of predetermined users by using an inverse matrix of the matrix used in the whitening filter, means (202, 204, 206, 208, 210) for performing multi-path combining and multi-antenna combining.

Abstract: In one non-limiting aspect thereof, the exemplary embodiments of this invention provide a user equipment that includes a data processor; and a wireless transceiver configured to transmit uplink pilot signals during sub-bands and slots, wherein at least three blocks (LB1, LB2 and LB3) are reserved for pilot signals. LB1 and LB2 include in-band pilot signals transmitted using a dedicated pilot code. The wireless transceiver is further configured to transmit LB3 using a frequency hopping pattern and pilot code allocation that are based on a slot and a sub-band in which a first LB3 is transmitted. Thus, the code and hopping pattern of a scheduled user equipment are resource-specific (defined by an allocated resource), as opposed to being user equipment-specific.

Abstract: A random access procedure for use by a UE wireless communication terminal in communicating with a base station (or Node-B or eNB) of a radio access network, and in particular a E-UTRA network. A random access preamble is sent by the UE via RACH separate and prior to a random access message burst, which is sent on SCH but not until the UE receives one or more messages indicating an acknowledgment of the preamble and providing an allocation on SCH for use in transmitting the message burst, and also providing a preamble identifier, which the radio access network can then use to request retransmission of the message burst if necessary.

Abstract: First information is detected in a received wideband signal. The first information is conveyed by a plurality of multiplexed frequency bands, individual ones of the multiplexed frequency bands corresponding to individual ones of first users and to a transport format. Detecting includes making data decisions corresponding to the first information. For each first user, a regenerated signal is created using the data decisions corresponding to that first user and the transport format. A resultant signal is created based on the regenerated signals for all of the first users and on the received wideband signal. Second information is detected in the resultant signal at least by using a number of spreading codes, individual ones of which are associated with individual ones of second users.

Abstract: Either a first transport format or a second transport format is selected to transmit information corresponding to an input symbol sequence. The transport formats fit information into a timeslot having a predetermined duration. Based upon the selected transport format, either the information is created from the input symbol sequence using the first transport format or is created from the input symbol sequence using the second transport format. Creating the information for transmission using the first transport format applies a spreading code to the input symbol sequence. The information for transmission is transmitted in a selected timeslot having the predetermined duration. Creating and transmitting the information using the first transport format causes the transmitted information to occupy a first frequency band. Creating and transmitting the information using the second transport format causes the transmitted information to occupy a second frequency band that partially overlaps the first frequency band.

Abstract: A radio resource control in an Uplink FDMA system is provided. The control procedure includes: dividing the common frequency band into more than one frequency band sub-block; allocating at least one user terminal to each frequency band sub-block on the basis of the modulation and coding schemes used by the user terminals; and controlling transmission power of the user terminals on the basis of the modulation and coding schemes used by the user terminals.

Abstract: An arrangement for controlling transfer of information, comprising a radio system and a terminal equipment, which radio system comprises at least two base stations and is configured to set up simultaneous connections between the terminal equipment and at least two base stations, the terminal equipment being configured to measure properties of the connections between the terminal equipment and the base stations, and to select at least one of the base stations as a primary base station, information transfer between the primary base station and the terminal equipment being activated, and the radio system comprising a combining-splitting point, which is configured to carry out combining/splitting functions on information flows transmitted via connections set up over different physical transmission paths.

Abstract: A multi-user receiver which uses at least two antenna elements and in which the influence of interference is reduced, the receiver comprises: means (200) for pre-filtering a wideband antenna signal, the pre-filtering means being determined on the basis of a spatial covariance matrix estimate, which spatial covariance matrix estimate is obtained from wideband antenna signals by sampling, arranging sampled values into a signal vector and by multiplying the signal vector by its conjugate transpose vector, means (210, 218) for removing the whitening from signals of predetermined users by using an inverse matrix of the matrix used in the whitening filter, means (202, 204, 206, 208, 210) for performing multi-path combining and multi-antenna combining.

Abstract: Pilot signal sequences with a low Peak-to-average ratio are generated by a method comprising the steps of providing a first signal sequence consisting of a first number, m, of signal elements and known to have a frequency spectrum with either identical or nearly identical non-zero amplitude values in a first frequency interval, performing an invertible first transformation of the first signal sequence into a first frequency spectrum in the first frequency interval, the first frequency spectrum consisting of m first frequency samples, performing a second transformation of the first frequency spectrum into a second frequency spectrum consisting of n frequency samples in the first frequency interval, the n frequency samples being formed by the m first frequency samples and a third number, n minus m, of additional second frequency samples, which have zero amplitude, such that the second frequency spectrum has m frequency spikes distributed over the second frequency interval, and performing a third transformation,

Abstract: A solution for determining in a radio receiver a data sequence indicating transmission parameters of a frame before the whole frame has been received in the radio receiver in order to obtain additional pilot symbols. According to the provided solution data is received in one or more time intervals, the data being part of a transmitted data sequence indicating transmission parameters of a frame. The possible data sequences are known to the radio receiver. The received data is compared with corresponding data of each known data sequence, and, based on the comparison, the data sequence which is determined to be closest to the received data is selected. The received data of the data sequence indicating the transmission parameters of the frame is then used as pilot data for channel estimation purposes, for example.

Abstract: The present invention relates to a method and system for providing a downlink connection in a cellular network. A feedback information indicating a selected cell is transmitted to a central network element (20) controlling at least two network elements (N1–N3) serving cells (C1–C3) of the cellular network. The at least two network elements are controlled by the central network element based on the feedback information so as to establish the downlink connection. Thus, the downlink transmissions of the non-central network elements (N1–N3) are controlled by the network so as to decrease performance loss due to reception errors of the feedback information. The feedback information may be a temporary ID obtained in a site selection diversity transmission control scheme.

Abstract: The present invention relates to a method and system for transmitting data in cellular network, wherein frequency reuse is proposed to be designed adaptive and utilized only only when needed, e.g., with small coding rates. The adaptive reuse can be obtained by using the conventional link adaptation approach. The invention can be easily applied to a Frequency Division Multiple Access (FDMA) system which consists of combination of localized and distributed FDMA. Thereby, better resistance against strong other cell interference can be provided.

Abstract: A signal-to-interference power ratio (SIR) estimation method implementable in a telecommunication system is provided. The proposed SIR estimation method estimates SIR from received pilot symbols of a plurality of time intervals of a frame and is capable of taking into account different transmit powers of pilot symbols of different time intervals which would normally degrade the SIR estimate.

Abstract: A solution for radio resource allocation in a cellular telecommunication system is provided. According to the invention, the frequency bands of a plurality of cells of the telecommunication system are divided independently into more than one frequency band sub-block. User terminals within the coverage area of each cell are then allocated to the frequency band sub-blocks on the basis of the modulation and coding schemes used by the user terminals. Furthermore, transmission power of the user terminals is controlled on the basis of the allocation of the user terminals in order to improve data throughput.

Abstract: In a transmitting entity a message of a first time period L is divided into N self-decodable blocks and transmitted towards a communications network. At the communications network the N self-decodable blocks are detected by a receiving entity and decoded on a block basis.

Abstract: A solution for radio access in a code division multiple access (CDMA)-based telecommunication system, in which orthogonal spreading codes are used for separating data of a plurality of user entities, is provided. According to the solution, a different pilot symbol sequence is allocated to each user entity, and the pilot symbol sequences of user entities are selected by allocating different frequencies for pilot symbol sequences of different user entities according to a frequency division multiple access (FDMA) technique in order to mitigate the effect of multiple access interference.

Abstract: A receiver of a communication system includes means for receiving repetition-coded data. The receiver also includes means for generating symbol information from the received repetition-coded data. The receiver also includes means for storing symbol information over a predetermined period and means for making tentative symbol decisions by combining the stored symbol information.

Abstract: The invention relates to a method and a transmitter for limiting a signal at chip level. The transmitter limiting the signal at chip level comprises means (704) for determining a limiting signal from a transmissible signal filtered using a pulse shaping filter, the transmitter comprises means (704, 710, 712) for determining an error signal using the transmissible signal and the limiting signal, the transmitter comprises means (720) for generating a limited transmissible signal by reducing the error signal filtered using the filter matched to a chip pulse waveform from the transmissible signal and the transmitter comprises means (722, 724) for filtering the limited transmissible signal using the pulse shaping filter.

Abstract: There is provided a method of selecting transport channel parameters and a radio system comprising user equipment communicating with at least one base station and a controller for controlling the communication between the user equipment and the base station. The base station comprises means for providing information on the type of reception used in the base station, the controller comprises means for generating more than one transport format combination set, TFCS, the TFCSs having different effective coding rates, ECR, for different data rates used in the radio system, and means for selecting a specific TFCS to be used by the user equipment on the basis of the type of reception used in the base station and the effective coding rates of the more than one TFCS, and the user equipment comprises means for using the specific TFCS based on the selection of the controller.

Abstract: A transceiver and a data transmission method in a telecommunication system are provided. The transmitter is arranged to transmit a WCDMA signal using one or more antennas, the signal comprising one or more code channels. The transmitter receives as input at least one encoded code channel. The transmitter comprises multipliers (308-314) for spreading each code channel with a spreading code, a combiner (324) for combining the spread signals and a converter (328) for performing a serial-to-parallel conversion on the combined signal, obtaining at least two parallel data streams, each parallel data stream corresponding to a given frequency band used in the transmission, and the transmitter is arranged to transmit the signal using simultaneously at least two different frequency bands.