- Patent Title: Method and system for non-orthogonal multiple access communication
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Application No.: US15881408Application Date: 2018-01-26
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Publication No.: US10700912B2Publication Date: 2020-06-30
- Inventor: Sanjeewa Herath , Alireza Bayesteh , Ming Jia , Jianglei Ma
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Slater Matsil, LLP
- Main IPC: H04L27/36
- IPC: H04L27/36 ; H04L5/00 ; H04W72/04

Abstract:
A bit-level operation may be implemented prior to modulation and resource element (RE) mapping in order to generate a NoMA transmission using standard (QAM, QPSK, BPSK, etc.) modulators. In this way, the bit-level operation is exploited to achieve the benefits of NoMA (e.g., improved spectral efficiency, reduced overhead, etc.) at significantly less signal processing and hardware implementation complexity. The bit-level operation is specifically designed to produce an output bit-stream that is longer than the input bit-stream, and that includes output bit-values that are computed as a function of the input bit-values such that when the output bit-stream is subjected to modulation (e.g., m-ary QAM, QPSK, BPSK), the resulting symbols emulate a spreading operation that would otherwise have been generated from the input bit-stream, either by a NoMA-specific modulator or by a symbol-domain spreading operation.
Public/Granted literature
- US20180337816A1 Method and System for Non-Orthogonal Multiple Access Communication Public/Granted day:2018-11-22
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