Invention Grant
- Patent Title: Transmission device, wireless communication system, and transmission method
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Application No.: US16965959Application Date: 2019-02-01
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Publication No.: US11411633B2Publication Date: 2022-08-09
- Inventor: Yosuke Fujino , Hiroyuki Fukumoto , Hajime Katsuda , Kazunori Akabane
- Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JPJP2018-016635 20180201
- International Application: PCT/JP2019/003625 WO 20190201
- International Announcement: WO2019/151480 WO 20190808
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04L1/02 ; H04B7/06 ; H04B1/00 ; H04B1/69
Abstract:
A transmission device includes a modulation unit that performs chirp-spread modulation on an input information series to generate a modulation signal; a delay unit that provides, to a plurality of modulation signals obtained by duplicating the modulation signal generated by the modulation unit, delays having lengths different from each other, a difference between the delays being an integral multiple of a reciprocal of a bandwidth of the modulation signal; and a plurality of transmission antennas that transmit the plurality of modulation signals, respectively, to which the delays are provided by the delay unit.
Public/Granted literature
- US20210119685A1 TRANSMISSION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND TRANSMISSION METHOD Public/Granted day:2021-04-22
Information query
