Title:
SYSTEM AND METHOD FOR SINGLE-CARRIER MULTIPLE-ACCESS TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2022/037133
Kind Code:
A1
Abstract:
A transmission method, and corresponding transmitter are provided that use a combination of sparse symbol mapping with non-sparse spreading. This can be used for a low-PAPR multiple access scheme where good performance is achieved by sparse domain multi-user detection. The provided method uses per-frequency block time-domain non-sparse spreading across sparse blocks which provides PAPR reduction. Sparsity patterns are partitioned into groups that allows PAPR reduction. The method may be used to support the transmission of a single-carrier signal, e.g. DFT-spread signal, to provide PAPR reduction. More generally the provided method can use any low-PAPR waveform, for example any single-carrier waveform or any single-subcarrier waveform.
Inventors:
HERATH SANJEEWA (CA)
VAMEGHESTAHBANATI MONIROSHARIEH (CA)
ABDOLI JAVAD (CA)
VAMEGHESTAHBANATI MONIROSHARIEH (CA)
ABDOLI JAVAD (CA)
Application Number:
PCT/CN2021/092642
Publication Date:
February 24, 2022
Filing Date:
May 10, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L27/26
Domestic Patent References:
| WO2017155591A1 | 2017-09-14 |
Foreign References:
| CN110971556A | 2020-04-07 | |||
| CN107534638A | 2018-01-02 | |||
| CN105791189A | 2016-07-20 | |||
| CN111224742A | 2020-06-02 |
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