The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 11, 2021

Filed:

May. 24, 2016
Applicant:

Hytera Communications Corp., Ltd., Guangdong, CN;

Inventors:

Huadong Li, Shenzhen, CN;

Qingxiang Yu, Shenzhen, CN;

Jun Hu, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 76/23 (2018.01); H04W 76/14 (2018.01); H04B 17/336 (2015.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04W 76/23 (2018.02); H04B 17/336 (2015.01); H04W 76/14 (2018.02); H04W 88/06 (2013.01);
Abstract

Embodiments of the present invention disclose is a direct mode operation communication method and terminal which are used for flexibly switching to a suitable DMO mode according to different communication environments, reasonably using spectrum resources, and extending multimedia services. The method in the embodiments of the present invention comprises: establishing, by a first terminal, a connection with a second terminal via a first DMO mode, the first DMO mode being a narrowband DMO mode, a wideband DMO mode, or a wideband-narrowband fused DMO dual-mode; receiving, by the first terminal, a wideband DMO signal sent by the second terminal; determining, by the first terminal, whether the quality of the wideband DMO signal satisfies a preset switching condition; and if the quality of the wideband DMO signal satisfies the preset switching condition, switching, by the first terminal, the first DMO mode to a second DMO mode to communicate with the second terminal. The embodiments of the present invention also provide a terminal, which is used for flexibly switching to a suitable DMO mode according to different communication environments, reasonably using spectrum resources, and extending multimedia services.


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