Method for identifying broadband trunking direct mode operation call

A broadband trunking and identification method technology, applied in wireless communication, electrical components, broadcast service distribution, etc., can solve the problems such as the method for DMO call identification that has not yet been proposed, and achieve the effect of effective identification

Inactive Publication Date: 2014-07-23
CHINA POTEVIO INFORMATION IND
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  • Summary
  • Abstract
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Problems solved by technology

[0008] At present, there is no proposed method that can realize DMO call recognition by DMO slave terminals in dual monitoring mode

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  • Method for identifying broadband trunking direct mode operation call

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Embodiment Construction

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The core idea of ​​the present invention is: considering that the eNB (168×3=) 504 cell IDs of LTE have been standardized in the protocol, the terminal supporting the LTE standard has been configured according to the standard protocol, and it is no longer possible to allocate DMO ID resources separately for DMO calls. , the present invention will add a synchronization signal dedicated to the DMO service, and the synchronization signal will be different from the synchronization signal used in the trunking mode call. In this way, the terminal in trunking mode can use the existing 3 PSS to search for trunking cells; while the terminal in DMO mode can use the synchronization signal dedicated to the DMO service to search for the DMO si...

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Abstract

The invention discloses a method for identifying a broadband trunking direct mode operation call. The method comprises the steps that a direct mode operation (DMO) terminal is configured with a synchronizing signal special for DMO calling in advance, wherein the synchronizing signal special for DMO calling is different from a synchronizing signal used in trunking mode operation calling; when a broadband trunking evolved Node B (eNB) is not involved in DMO calling between control terminals, a master control terminal of DMO calling uses the synchronizing signal special for DMO calling to initiate a DMO call on a DMO channel; and when monitoring the synchronizing signal special for DMO calling on the DMO channel, a slave terminal of DMO calling determines that the DMO call exists on the current DMO channel. By adopting the method, a DMO slave terminal in a dual-monitor mode can effectively identify the DMO call.

Description

technical field [0001] The invention relates to broadband trunking communication technology, in particular to a method for identifying a broadband trunking direct call. Background technique [0002] In the existing LTE system, after the user equipment (UE) is powered on, it searches for a primary synchronization (PSS) signal and a secondary synchronization reference (SSS) signal on several center frequency points of the LTE frequency band to realize cell search and synchronization. Among them, the PPSS / SSS signal is a Zadeoff-Chu sequence, which has a strong correlation, so it can be directly detected and received. Accordingly, the cell ID in the cell group can be obtained, and the time slot boundary of 5ms can be determined at the same time. In addition, the UE can know the length of the cyclic prefix and whether it is the LTE FDD system or the LTE TDD system by checking the PSS / SSS signal. [0003] The PSS / SSS signal occupies 6 resource blocks (RBs) in the center frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W4/06
Inventor 赵顾良陈永周欣王秋英强剑锋
Owner CHINA POTEVIO INFORMATION IND
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