Localized equalization for channels with intercarrier interference
AssigneeCohere Technologies, Inc.
InventorsMichail Tsatsanis, Christian Ibars Casas
Life of this patent
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Abstract
A wireless communication method for receiving an orthogonal time frequency space (OTFS) modulated signal includes receiving the OTFS signal over a wireless communication channel, dividing the receiving OTFS signal along a delay-dimension into a plurality of segments, performing, for each segment, channel estimation independent of channel estimation for other segments to generate a plurality of channel estimates, performing, for each segment, channel equalization using a corresponding channel estimate from the plurality of channel estimates to generate a channel-equalized symbol stream, and generating information bits from the channel-equalized symbol stream.
Claims15
A wireless communication method for receiving an orthogonal time frequency space (OTFS) modulated signal, comprising:
- receiving the OTFS signal over a wireless communication channel;
- dividing the received OTFS signal along a delay-dimension into a plurality of segments;
- performing, for each segment, channel estimation to produce a plurality of channel estimates corresponding to the plurality of segments;
- performing, for each segment, channel equalization using a corresponding channel estimate from the plurality of channel estimates to generate a channel-equalized symbol stream;
- and
- generating information bits from the channel-equalized symbol stream.
A wireless communication device comprising a memory storing instructions and a processor, wherein the instructions, when executed by the processor, cause the processor to at least:
- receive the OTFS signal over a wireless communication channel;
- divide the received OTFS signal along a delay-dimension into a plurality of segments;
- perform, for each segment, channel estimation to produce a plurality of channel estimates corresponding to the plurality of segments;
- perform, for each segment, channel equalization using a corresponding channel estimate from the plurality of channel estimates to generate a channel-equalized symbol stream;
- and
- generate information bits from the channel-equalized symbol stream.
(canceled)
Dependencies are inferred from the claim text.