Back to results
US 2019/0238155 A1Published application
Forward and backward smooth decoding method, device, and system
AssigneeShenzhen Super Data Link Technology Ltd.
InventorsRuopeng LIU, Chunlin JI, Xingan XU, Shasha ZHANG
Life of this patent
Estimating the term…
Abstract
The present application discloses a forward and backward smooth decoding method and device suitable for an OvXDM system, and a system. Importance weights of particles in a particle set corresponding to a symbol are calculated by using a forward process and a backward process, and screening is performed with reference to forward importance weights of particles and backward importance weights of particles, to output a final decoding sequence.
Claims20
A forward and backward decoding method, comprising the following steps:
- a forward step:
- starting from a first symbol to a last symbol in an estimation sequence, sequentially calculating importance weights of particles in a particle set corresponding to each symbol, to obtain importance weights of particles in a forward process;
- a backward step:
- starting from the last symbol to the first symbol in the estimation sequence, sequentially calculating importance weights of particles in a particle set corresponding to each symbol with reference to the importance weights of particles obtained in the forward step, to obtain importance weights of particles in a backward process;
- and
- an output step:
- obtaining an estimated value corresponding to each symbol, and outputting a final decoding sequence.
4 more elements
A forward and backward decoding device, comprising:
- a forward unit, configured to:
- starting from a first symbol to a last symbol in an estimation sequence, sequentially calculate importance weights of particles in a particle set corresponding to each symbol, to obtain importance weights of particles in a forward smoothing process;
- a backward unit, configured to:
- starting from the last symbol to the first symbol in the estimation sequence, sequentially calculate importance weights of particles in a particle set corresponding to each symbol with reference to the importance weights of particles obtained by the forward unit, to obtain importance weights of particles in a backward smoothing process;
- and
- an output unit, configured to output a final decoding sequence.
3 more elements
Dependencies are inferred from the claim text.