摘要:
An object is to identify interfering signals coming at random timings from different radio stations. In order to attain this object, a method for storing the characterizing quantity of an interfering signal included in a received signal comprises a characterizing quantity calculation step of calculating the characterizing quantity of the received signal; a received signal determination step of determining a probability that a desired signal is included in the received signal, and determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal; and an interfering signal characterizing quantity storage step of storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要:
An idle mode UE can RACH to a cell different from the cell paging the UE. The UE can be allocated additional time to respond to all cells in the neighborhood to identify the cell in which to RACH. Interference cancellation can occur at different rates based on whether the UE is in connected mode or idle mode. The time to respond to the page can be a function of a paging cycle. Additionally, a variable bias may promote early handoff to lower power cells and late handoff to high power cells.
摘要:
A user device receives, from a base station, a radio signal in which non-orthogonal signals are mixed. The user device recognizes, based on information transmitted from the base station, a parameter associated with the location of the user device. When the user device is at the edge of the cell area of the base station, a demodulator of the user device demodulates, as a signal directed to the user device, the radio signal in which an interference signal component has been suppressed by an interference rejection combining processor of the user device and a non-orthogonal signal canceller of the user device does not operate. When the user device is within the cell area and is not at the edge of the cell area, until the demodulator demodulates the signal directed to the user device, the interference rejection combining processor suppresses an interference signal component in a non-orthogonal signal outputted from the non-orthogonal signal canceller and the demodulator demodulates the non-orthogonal signal in which the interference signal component has been suppressed by the interference rejection combining processor.
摘要:
The invention concerns a transmission of a digital signal, in which - when it is transmitted, a vector corresponding to a digital signal to be transmitted, having the form of a sequence of N symbols, is projected onto a vector space, said vector space being orthogonal to at least one non-zero vector corresponding to a sequence of symbols defining a digital watermark, and - when it is received, the digital signal is authenticated by checking the orthogonality of a vector, corresponding to said received digital signal and having the form of a sequence of symbols, relative to said at least one vector defining a digital watermark.
摘要:
In a RAKE receiver delays associated with multipath signals are determined by subtracting power values associated with sidelobes of a peak value for each of the multipath signals. The determination can be performed in two stages, in the first stage the determination of the delays is made without accounting for a phase difference between adjacent multipath signals, while in the second stage the determinations are made accounting for the phase difference.
摘要:
It is presented a method, performed in a receiver device, for decoding transmissions of a set of coded information bits from a transmitter. The method comprises the steps of: deriving received symbols from first received data and second received data; converting the received symbols to sets of soft coded bit estimates; combining the sets of soft coded bit estimates to a combined set of soft coded bit estimates; decoding the combined set of soft coded bit estimates to a set of soft information bit estimates; converting the set of soft information bit estimates to a set of binary bits; determining whether the set of binary bits has been correctly or incorrectly decoded; performing interference cancellation on the received data; and repeating the mentioned steps until either the set of binary bits has been correctly decoded or a predefined maximum number of iterations is reached.