Title:
COMMUNICATION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/222008
Kind Code:
A1
Abstract:
A communication device and method, used for solving the problem of short communication distance between a reader and an electronic tag in passive communications. The reader sends an excitation signal, and a first duplexer of the electronic tag receives the excitation signal from the reader by means of a first antenna. A maser of the electronic tag is configured to obtain an exciting signal according to the excitation signal obtained from the first duplexer, the exciting signal comprising a first signal, and the frequency of the excitation signal being different from the frequency of the first signal. The electronic label also comprises a modulation circuit connected to the maser, and a control circuit is configured to control, according to first information among M pieces of first information, the modulation circuit to modulate the exciting signal to obtain a response signal, which is sent to a second device by means of a first antenna. To meet different requirements, the M pieces of first information are pre-defined or pre-configured, and M is an integer greater than or equal to one.
Inventors:
YUAN SHUTIAN (CN)
Application Number:
PCT/CN2021/088215
Publication Date:
October 27, 2022
Filing Date:
April 19, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B5/00; H04W4/80
Foreign References:
| US20150123664A1 | 2015-05-07 | |||
| CN110324068A | 2019-10-11 | |||
| CN108020344A | 2018-05-11 | |||
| US5450492A | 1995-09-12 | |||
| US20210003688A1 | 2021-01-07 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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