Intel Corporation

Intel IP Corporation

Guillaume Monghal

Christian Rom

Tommaso Balercia

Bernard Fleury

Hung Tuan Nguyen

Marek Rohr

Jesper Blauendahl

Ciano Frost

Oana-Elena Barbu

Mihai-Alin Badiu

Carles Navarro-Manchon

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

Natural radio environments are emulated using field traces and a channel emulator to test radio devices. In one example, a test includes a field trace source to replay recorded field traces, a protocol tester to receive the replayed field traces to extract configuration parameters from the replayed field traces, to extract signals from the field traces, to send the signals to a device under test, and to receive signals from the device under test, and a channel emulator coupled to the field trace source, and between the protocol tester and the device under test, to receive the replayed field traces, to mix the replayed field traces with signals and to emulate the channel between the protocol tester and the device under test.

Virtualization of natural radio environments using field traces and a channel emulator

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

Natural radio environments are virtualized to test radio devices. In one example, this is done by extracting signals and messages recorded in the field and injecting them in the operation of a protocol tester. In another example, the radio environment is reproduced by generating channel impulse responses in a ray-tracer, then interpolating them in a channel emulator and supporting the interpolation by means of post-processing. In another example, the radio environment is recorded using a mobile terminal in the field. In another example, natural radio environments are produced by reconstructing realistic cell loads and, as a consequence, intra-cell interference for a given device under test.

Virtualization of natural radio environments to test a radio device

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Aalborg, Denmark

Guillaume Monghal