Signal synchronous transmission method, system and device

A technology of signal synchronization and transmission method, applied in the field of communication, can solve the problems of complex signal processing process and so on

Inactive Publication Date: 2008-05-14
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The present invention provides a signal synchronous transmission method, system and device, which are ...

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  • Signal synchronous transmission method, system and device
  • Signal synchronous transmission method, system and device
  • Signal synchronous transmission method, system and device

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Embodiment Construction

[0053] The core idea of ​​the present invention is: under the premise that each transceiver adopts the same timing system to ensure that the physical layer frames of each transceiver are synchronized, the initial frame number in each transceiver is set to be the same, so that each transceiver uses the The same timing system can keep the frame number of each transceiver at the same moment identical; The difference between the frame numbers of the transceivers is used to obtain the sending frame number of the signal sent by the transceiver, and the sending frame number and the broadcast service data to be sent are sent to each transceiver, and each transceiver according to the The transmission frame number of the signal sent by the transceiver sends the broadcast service data synchronously, thereby avoiding the cumbersome calculation of the difference between the frame number of the data distribution entity and the frame number of each transceiver for the data distribution entity...

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Abstract

The invention discloses a method, a system and a device for sending signals synchronously. The invention aims to solve the problem in prior art that the complex treatment process regarding sending broadcast signals synchronously. In the invention, the frame numbers of a plurality of transceivers are set at the same time. The method includes the following steps: A. a data distribution entity obtains the sending frame numbers of transceiver sending signal according to the transmission time delay between the data distribution entity and the transceiver as well as the difference in frame numbers of the data distribution entity and the transceiver at the same time, and sends the frame numbers and the broadcast service data that need sending to the transceiver. B. each transceiver sends the broadcast service data according to the corresponding sending frame numbers. The invention can be used for sending broadcast signal synchronously and can simplify the treatment process regarding sending broadcast signals synchronously.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, system and device for synchronous signal transmission. Background technique [0002] At present, in the wireless communication system, the broadcast service is sent in broadcast mode through the air interface. Generally, the transmission range of the broadcast service is larger than one cell. The broadcasting service in the system needs to realize the synchronization of signal transmission in a wide range. [0003] The synchronization of signal transmission needs to be realized under the condition of a single frequency network (SFN, Single Frequency Network). The SFN means that within the coverage area of ​​a certain broadcast service, all cells use the same physical resources to transmit at the same time Same broadcasting service. [0004] In order to realize SFN, it is necessary for the network to ensure physical layer frame synchronization when sendin...

Claims

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Application Information

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IPC IPC(8): H04L7/00H04L12/18
Inventor 杨家军毛磊丁昱王映民杨君云
Owner CHINA ACAD OF TELECOMM TECH
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