Backhaul signal compression through spatial-temporal linear prediction
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorDennis Hui
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Abstract
The technology in this application compresses multi-antenna complex-valued signals by exploiting both a spatial and a temporal correlation of the signals to remove redundancy within the complex-valued signals and substantially reduce the capacity requirement of backhaul links. At a receiver, the compressed signal is received, and a decompressor decompresses the received signal over space and over time to reconstruct the multiple antenna stream.
Claims44
A compression method for compressing information in radio signals received at multiple radio antennas, comprising the steps of:
- receiving, over a plurality of radio antennas, multiple radio antenna signals associated with a user communication;
- decorrelating the received radio antenna signals over space and over time to generate a compressed signal, and
- transmitting the compressed signal to a receiving node,
- wherein the multiple radio antenna signals are complex-valued.
Compression apparatus for compressing information in radio signals received at multiple radio antennas, comprising:
- processing circuitry configured to process the received multiple radio antenna signals to decorrelate the received multiple radio antenna signals over space and over time to generate a compressed signal, and
- a transmitter configured to transmit the compressed signal to a receiving node,
- wherein the multiple radio antenna signals are complex-valued.
Dependencies are inferred from the claim text.