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Multilevel relay synchronization implementation method based on TDMA (time division multiple access)

An implementation method and a technology for synchronizing information, applied in the TDMA field, can solve the problems of GPS out-of-synchronization, relay and base station out of synchronization, etc., and achieve the effect of avoiding GPS signal out-of-synchronization

Inactive Publication Date: 2014-05-14
浙江宏睿通信技术有限公司
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Problems solved by technology

However, the environment where relay equipment is required is often more complicated, and GPS will often lose synchronization, causing the relay and base station to be unable to synchronize, so the method of wireless signal synchronization is of great significance

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  • Multilevel relay synchronization implementation method based on TDMA (time division multiple access)
  • Multilevel relay synchronization implementation method based on TDMA (time division multiple access)
  • Multilevel relay synchronization implementation method based on TDMA (time division multiple access)

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings, and the purpose and effect of the present invention will become more obvious.

[0030] The present invention provides a method for implementing relay synchronization applicable to TDMA systems. The method first utilizes the structural characteristics of TDMA to divide each time frame into several control time slots and data time slots, such as figure 1 As shown, the base station occupies a control time slot, and each relay device or terminal device is also allocated a control time slot. The base station automatically generates a local time slot and sends a wireless signal containing synchronization information in the control time slot allocated to the local. The relay Or the terminal device performs time slot synchronization through the synchronization information in the received wireless signal.

[0031] The present invention is based on the TDMA multi-sta...

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Abstract

The invention discloses a multilevel relay synchronization implementation method based on TDMA (time division multiple access). In the method, a base station automatically generates a local time slot and sends out a wireless signal containing synchronization information; and a relay or a terminal firstly performs initialization and searches a synchronizing signal, starts timing and waiting for the external verification on the signal after receiving the synchronizing signal, observes and confirms whether the signal arrives at the waiting end time, enters into a synchronous tracking state if the signal is confirmed to arrive, generates the local time slot according to external configuration parameters and finishes the time slot synchronization. The method provided by the invention can be used for effectively realizing the synchronization between the relay or the terminal equipment and the base station according to the received wireless signal and avoiding GPS (global positioning system) out-of-step trouble in a complex environment.

Description

technical field [0001] The invention relates to the technical field of TDMA, in particular to a method for realizing synchronization of a TDMA (Time Division Multiple Access, Time Division Multiple Access) system. Background technique [0002] TDMA technology is a basic multiple access technology commonly used in communication. It divides time into periodic frames, and each frame is divided into several time slots to send signals to the base station. Under the conditions of timing and synchronization, the base station can The signals of the mobile terminals are received in respective time slots without being disturbed. At the same time, the signals sent by the base station to multiple mobile terminals are arranged in a specific time slot for transmission in sequence, and each mobile terminal can distinguish the signal sent to it from the combined signal as long as it receives it in the designated time slot. and receive it. When the TDMA system is used for net...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
Inventor 储昭才宋征卫陈翔
Owner 浙江宏睿通信技术有限公司
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