18253014. Adaptive Sounding Reference Signal Mapping for Improved Channel Estimation simplified abstract (GOOGLE LLC)

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Adaptive Sounding Reference Signal Mapping for Improved Channel Estimation

Organization Name

GOOGLE LLC

Inventor(s)

Ming Sun of Mountain View CA (US)

Adaptive Sounding Reference Signal Mapping for Improved Channel Estimation - A simplified explanation of the abstract

This abstract first appeared for US patent application 18253014 titled 'Adaptive Sounding Reference Signal Mapping for Improved Channel Estimation

Simplified Explanation

The present disclosure describes a method for improving channel estimation in a user equipment (UE) by implementing adaptive sounding reference signal (SRS) mapping. This method involves generating a set of SRS symbols, including first and second SRS symbols. The offset for the second SRS symbol is determined based on the difference between the first and second radio chains of the UE. The first and second SRS symbols are then mapped to an antenna port of the first radio chain. The UE transmits the first SRS symbol to a base station via the antenna port of the first radio chain and transmits the second SRS symbol to the base station via the same antenna port while applying the offset to the first radio chain. This improves channel estimation for both uplink and downlink communications.

  • A set of sounding reference signal (SRS) symbols are generated, including first and second SRS symbols.
  • The offset for the second SRS symbol is determined based on the difference between the first and second radio chains of the UE.
  • The first and second SRS symbols are mapped to an antenna port of the first radio chain.
  • The first SRS symbol is transmitted to a base station via the antenna port of the first radio chain.
  • The second SRS symbol is transmitted to the base station via the same antenna port while applying the offset to the first radio chain.
  • This method improves channel estimation for both uplink and downlink communications.

Potential Applications

  • This technology can be applied in wireless communication systems to improve channel estimation for both uplink and downlink communications.

Problems Solved

  • The method solves the problem of inaccurate channel estimation in wireless communication systems.

Benefits

  • Improved channel estimation leads to better overall performance and reliability of wireless communication systems.
  • This method can be implemented in existing user equipment without requiring significant hardware changes.


Original Abstract Submitted

The present disclosure describes various aspects of adaptive sounding reference signal mapping that a user equipment (UE) implements to improve channel estimation. In aspects, a set of sounding reference signal (SRS) symbols are generated that include at least first and second SRS symbols. An offset for the second SRS symbol is determined based on a difference between a first radio chain and a second radio chain of the UE. The first and second SRS symbols are then mapped to an antenna port of the first radio chain. The UE transmits the first SRS symbol to a base station via the antenna port of the first radio chain and transmits the second SRS symbol to the base station via the antenna port of the first radio chain while the offset is applied to the first radio chain. By so doing, the UE may improve channel estimation for uplink and/or downlink communications.

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