Intel Corporation

Elektrobit System Test Oy

Intel IP Corporation

Bernard Fleury

Christian Rom

Oana-Elena Barbu

Carles Navarro Manchon

Guillaume Monghal

Tommaso Balercia

Carles Navarro-Manchon

Alexander Kocian

Mihai Badiu

Mihai-Alin Badiu

A method of estimating a channel for mobile systems with insufficient cyclic prefix length, wherein the channel comprises a plurality of multipath components (,), includes: receiving a signal (y) comprising a plurality of contributions of a transmit signal (x[k], x[k]) transmitted during a plurality of transmission time intervals (n, n&#x2212;1) on a plurality of sub-carriers of known pilots (k&#x2208;P) and a plurality of sub-carriers of unknown data (k&#x2209;P); determining an estimate of the plurality of multipath components (,) based on a probabilistic relation between the plurality of first contributions (x[k], x[k]) of the transmit signal, wherein the plurality of first contributions are transmitted during adjacent transmission time intervals (n, n&#x2212;1), and an observation of the received signal (y[k]) at a subcarrier (k&#x2208;P) of the known pilots, wherein the probabilistic relation is based on statistical properties of the plurality of first contributions (x[k], x[k]) of the transmit signal.

Methods and devices for channel estimation for mobile systems of insufficient cyclic prefix length

A method for processing a plurality of signals may include receiving one or more observations characterizing a wireless channel, performing a channel estimation to determine a probabilistic channel model for the wireless channel, and processing the plurality of signals using the probabilistic channel model. The channel estimation may include numerically updating one or more multipath gain estimates and one or more multipath delay estimates based on the one or more received observations and a probability distribution associated with the probabilistic channel model.

Method of processing a plurality of signals and signal processing device

A method () for channel estimation includes receiving () a receive symbol () comprising: a plurality of interfering transmissions from: a first transmit symbol (), the first transmit symbol () comprising a plurality of unknown modulated symbols interleaved with a plurality of known modulated symbols and a second transmit symbol (), the second transmit symbol () comprising a plurality of unknown modulated symbols interleaved with a plurality of known modulated symbols, wherein the plurality of transmissions from the first transmit symbol () and the second transmit symbol () are a plurality of transmissions of different time instances; and estimating () a channel based on the receive symbol () and a plurality of estimates of the first transmit symbol () and the second transmit symbol ().

Methods and devices for channel estimation and OFDM receiver

A method for processing one or more received radio signals is provided. The method may include performing a channel estimation of a transmission channel for at least a portion of the one or more radio signals received, to identify at least one soft channel parameter representing a channel impulse response of the transmission channel, and identifying at least one soft intercarrier interference parameter representing an interference for the one or more radio signals received using a first frequency carrier. The interference is caused by the one or more radio signals received using a second frequency carrier. The method may further include detecting soft data from the one or more radio signals based at least on the at least one soft channel parameter and the at least one soft intercarrier interference parameter.

Devices and methods for processing one or more received radio signals

The invention relates to a device and a method for simulating a radio channel, wherein a signal transmitted and received by more than one antenna is simulated. The method comprises supplying an input signal of each antenna to a similar delay line, each delay line comprising a delay element connected in series for each propagation path, weighting an output signal of the delay elements corresponding with each propagation path by a term in dependence of a control vector of each transmitting antenna, by a term describing the distortion of a propagation path, and by a term in dependence of a control vector of each receiving antenna, and adding up the components corresponding with each receiving antenna and obtained from the outputs of the weighting means.

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Aalborg, Denmark

Bernard Fleury