Title:
SIGNAL SHIELDING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/113199
Kind Code:
A1
Abstract:
Provided in the present invention is a signal shielding method, comprising: acquiring a frequency band range currently being used by a base station; on the basis of the frequency band range currently being used by the base station, acquiring the position of a main synchronisation signal time slot; and, on the basis of the position of the main synchronisation signal time slot, emitting an interference signal. User devices such as mobile terminals receive downlink signals sent by the base station in the main synchronisation signal time slot to obtain downlink synchronisation with the base station and, in the main synchronisation signal time slot, user devices also send to the base station preamble sequences for requesting random access. Emitting an interference signal in the main synchronisation signal time slot therefore means that user devices will be unable to search for a network, and will be unable to communicate normally. The present method thus increases signal shielding effects. The power of a signal shielding device can be reduced, saving energy and reducing radiation to the human body.
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Inventors:
PEI DONG (CN)
Application Number:
PCT/CN2017/087069
Publication Date:
June 28, 2018
Filing Date:
June 02, 2017
Export Citation:
Assignee:
PHICOMM SHANGHAI CO LTD (CN)
International Classes:
H04K3/00
Foreign References:
| CN106685574A | 2017-05-17 | |||
| CN105049148A | 2015-11-11 | |||
| CN102868421A | 2013-01-09 | |||
| CN106161314A | 2016-11-23 | |||
| JP2010193119A | 2010-09-02 |
Attorney, Agent or Firm:
KG INTELLECTUAL PROPERTY LAW FIRM (CN)
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