Title:
セルラーモノのインターネットシステムにおけるフレキシブルなガウス最小シフトキーイング
Document Type and Number:
Japanese Patent JP6775496
Kind Code:
B2
Abstract:
Methods, systems, and devices are described for wireless communication at a UE. A user equipment (UE) may utilize orthogonal frequency division multiple access (OFDMA) for demodulating downlink messages and a combination of Gaussian minimum shift keying (GMSK) and single carrier frequency division multiple access (SC-FDMA) for uplink modulation. The uplink modulation process may include generating a symbol vector with an M-point discrete Fourier transform (DFT), filtering the symbol vector with a frequency domain Gaussian filter, generating a sample vector from the filtered symbol vector utilizing an inverse DFT, and modulating the sample vector utilizing GMSK. In some cases, the uplink modulation may be based on a narrowband resource allocation received from a base station.
Inventors:
Jun Lee
Frank Anton Lane
Frank Anton Lane
Application Number:
JP2017518225A
Publication Date:
October 28, 2020
Filing Date:
September 21, 2015
Export Citation:
Assignee:
Qualcomm, Inc.
International Classes:
H04L27/26; H04B1/04; H04J1/00; H04L27/12; H04W4/70
Domestic Patent References:
| JP2010193469A |
Foreign References:
| US20090147669 | ||||
| WO2014049325A1 |
Other References:
鈴木 博,狭帯域デジタル変調,DoCoMoテクニカルジャーナル,1994年,Vol.1, No.3,pp. 6-14
森岡 和行 et al.,CPM-OFDM方式の基礎検討,平成24年度電子情報通信学会信越支部大会,2012年,p.41
森岡 和行 et al.,CPM-OFDM方式の基礎検討,平成24年度電子情報通信学会信越支部大会,2012年,p.41
Attorney, Agent or Firm:
Yasuhiko Murayama
Kuroda Shinpei
Kuroda Shinpei
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