System, method, equipment and apparatus for synchronous transmission

Abstract

The invention provides a synchronous transmission system, a method, a device and equipment, belonging to the technical field of the communication, wherein the method includes: when MBS conversation is initiated, a center dispatch transmission unit determines and transmits the transmission parameter of MBS data at the port, and the local dispatch transmission unit uses the transmission parameter to perform the port process on the MBS data; the center dispatch transmission determines the dispatch parameter of the MBS data, and the local dispatch transmission unit distributes the port bandwidth for the MBS data according to the transmission unit; the center dispatch transmission unit separates, codes the MBS data, and configurates the clock synchronization indication; the local dispatch transmission unit transmits the MBS data according to the code sequence processed by the port through the port bandwidth. The method realizes the dispatch synchronization, the data package time sequence synchronization and the transmission parameter synchronization under the MBS mode, thereby realizing the transmission synchronization of the MBS data.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a system, method, equipment and device for synchronous transmission. Background technique [0002] With the development of communication technology, the application of various wireless access technologies is becoming more and more extensive. For example, the wireless metropolitan area network technology WiMAX (Worldwide Interoperability Microwave Access) mentioned in the IEEE802.16 standard, this The technology proposes a new air interface standard for microwave and millimeter wave frequency bands to transmit wireless signals, which can provide high-speed Internet-oriented connections. Using this technology, broadband wireless access services within a range of 50 kilometers can be provided. And WiMAX supports MBS (Multicast and Broadcast Service, multicast / broadcast service). [0003] MBS is a flexible and effective mechanism and method provided by the IEEE 802...

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Problems solved by technology

[0006] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: in the multi-base station MBS mode, in order to realize the macro-diversity gain for the terminal to receive the MBS service and optimize the transmission effect of the MBS service, it is necessary to involve multiple The transmission synchronization among multiple base stations must ensure the scheduling synchronization between multiple base stations, that is, the same transmission parameters and scheduling period are used to transmit MBS service flows. Transmission synchronization cannot meet the needs of multi-base station MBS services; and because it involves transmission synchronization between multiple base stations, it is necessary to ensure the consistency of the transmission timing of the same data stream between different base stations, that is, the same physical space should be transmitted at the same time The data packets with the same content are used to ensure the consistency of the data information received by the terminal from different base stations at the same time. Therefore, the scheduling and transmission mechanism based on the existing base station cannot meet the consistency of data timing between multiple base stations in the multi-base station MBS scenario. sexual needs

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