摘要:
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.
摘要:
An approach is provided for performing control signaling. Data and control information are received. The control information is orthogonalized using block-level spreading. The data and the orthogonalized control information are multiplexed at a symbol-level.
摘要:
A network element may provide a plurality of user equipments with a dedicated pilot sequence for uplink reference signal transmission. A user equipment may, after receipt of a dedicated pilot sequence, spread the pilot sequences using a block spreading method.
摘要:
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.
摘要:
A plurality of substantially static input parameters are provided, and a plurality of signalled input parameters are also provided. From the substantially static input parameters and the plurality of signaled input parameters, an output parameter is determined that is indicative of a number of control symbols per transmission time interval for an amount of control signaling bits. The output parameter relates to a modulation and coding scheme for an uplink.
摘要:
An approach is provided for performing control signaling. Data and control information are received. The control information is orthogonalized using block-level spreading. The data and the orthogonalized control information are multiplexed at a symbol-level.
摘要:
In accordance with an example embodiment of the present invention, a method comprises mapping a first transmission channel to an existing channel of a network element; switching the network element to a secondary communication mode which is one of a secondary transmission mode and a secondary receiving mode; signaling at least one neighbor network element in the secondary communication mode to associate the network element with the at least one neighbor network element; and receiving a first signal on the mapped first transmission channel from the at least one associated network element.
摘要:
An interference cancellation unit having as an input two or more IFDMA signals comprising a multitude of frequency bins is provided. The unit comprises a channel estimator for determining a channel estimate from the input signals, a matrix calculator for determining an error covariance matrix of the input signals, and an estimator for determining weight factors on the basis of the channel estimate and the error covariance matrix and weighting and combining the input signals. The unit further comprises a preprocessor for removing unwanted frequency bins from the input signals prior to the error covariance calculation.
摘要:
An approach is provided for performing control signaling. Data and control information are received. The control information is orthogonalized using block-level spreading. The data and the orthogonalized control information are multiplexed at a symbol-level.
摘要:
There is provided a data sequence structure for an uplink control information single carrier signal, comprising: a first code word and a second code word each corresponding to at least one type of uplink control information; a plurality of data units included in the first and the second code-words; a similar sequence of pilot units included in both the first and the second code word. The first and the second code word having a maximum Euclidean distance between the data units, and both the first and the second code word having the form of a CAZAC sequence.