Wireless video or large data stream seamless soft switching realizing method under high-speed mobile environment

Abstract

Present invention relates to seamless soft switching implementation method for wireless video frequency or large data stream under high speed. It contains data transmitting element unit transmitting coded data to data receiver after obtaining coded data, data receiver making hash cache processing, eliminating multiple path transmitted repeating data to ensure data transparently transmitted from data encoding end to data decode end after cache processing. Said invention makes time label to each data packet for transparent transmission to keep unchanged interval and sequence. Said method can be used in transmission signal often disturbed circumstance.

Description

technical field [0001] The present invention relates to data in the system when the wireless video or large data collection equipment moves rapidly and frequently switches base stations among multiple wireless base stations or wireless device access points, and the correspondingly collected wireless video or large data streams are transmitted to the destination. A method for realizing seamless soft handover. Background technique [0002] The current situation of wireless video or big data transmission systems: usually the wireless signal of a single base station or wireless device access point in a wireless network can only cover a fixed area, and within the coverage area, a certain frequency point can be selected for the mobile device end and the base station end for data communication. However, for moving objects, such as wireless video or data acquisition terminal equipment on cars and ships, when the moving distance is greater than the coverage of a ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of seamless transmission of data streams across wireless base stations in the high-speed mobile environment, the method adopted is carried out in the following steps: (1), after the data sending unit obtains the encoded data from the video or large data stream encoding unit, If the high-speed moving object where the data sending unit is located is not in the signal overlapping area of ​​multiple base stations, the sending unit will only send the data stream to the data receiving end at the currently locked single frequency point; if the sending unit is in the overlapping area of ​​base station signals, the sending unit will The encoded data stream will be sent to the data stream receiving end at the same time at different frequency points available to two or more devices; (2) The data stream receiving unit receives one, two or multiple data streams sent by the sending unit Finally, the data is cached, and at the same time, the repeated data generated after multi-channel transmission is eliminated through the Hashi HASH hash algorithm, and then the processed non-repetitive continuous data content is transmitted to the video or large data stream decoding end unit

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