Wireless digital link relaying method

A digital link and link technology, applied in radio transmission systems, electrical components, transmission systems, etc., can solve the problems of different air interfaces and achieve the effect of saving frequency resources

Inactive Publication Date: 2013-01-23
KIRISUN COMM
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] However, the air interface of the existing wireless link is not the same as that of the repeater

Method used

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] The present invention adopts the method of time division to carry out signal relay, and the signal relay process is as follows figure 2 shown. It can be seen from the figure that link machine 1 transmits in time slot 1, link machine 2 receives in time slot 1 and transmits in time slot 2, link machine 3 receives in time slot 2 and transmits in time slot 1, and so on . Since all link machines use the same frequency point, and at the same time, the entire air interface has only two time slots, therefore, it is necessary to use directional antennas and dynamic antenna switches to control the ...

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Abstract

The invention provides a wireless digital link relaying method. An operation of single-frequency-point time-division forwarding is performed by using a double-timeslot TDMA (time division multiple address) air interface, and through arranging a directional antenna and a dynamic antenna switch on a link machine, in the process of sending a link to a lower link machine, the directional antenna is switched to be aligned at the lower link machine. According to the wireless digital link relaying method disclosed by the invention, a single-frequency-point link forwarding function is realized by using the double-timeslot TDMA air interface, so that a quick response function can be realized in a network structure without center node, thereby greatly saving frequency resources.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for realizing wireless digital link relay by dynamically switching a directional antenna switch. Background technique [0002] At present, when multiple repeaters in the field of wireless communication are relayed through wireless links, the wireless relay link either adopts microwave relay, or uses a proprietary wireless digital or analog link relay. Most of the existing link machines use a pair of frequency points, which are divided into uplink and downlink, such as figure 1 shown. [0003] However, the air interface of the existing wireless link is different from the air interface of the repeater. In recent years, as the DMR professional wireless mobile communication standard proposed by ETSI is gradually gaining more and more applications all over the world, it is urgent to provide a solution to solve the problem that the relay link of DMR terminals ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/155
Inventor 姚忠邦何洁沈镇
Owner KIRISUN COMM
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