Multipath transmission method, multipath transmission system, data transmission device and data receiving device

Abstract

A wireless multi-path transmission method and system, data transmitting device, and data receiving device, the method comprising: a data transmitting terminal encodes a plurality of original data packets, the number of encoded data packets being greater than the number of original data packets; the data transmitting terminal transmits the encoded data packets to a data receiving terminal over different transmission links; and the data receiving terminal receives the data packets from different transmission links, decodes and obtains the original data packets. The technical solution encodes and distributes original data packets, thus flexibly realizing multi-path transmission of data. In addition, the technical solution further considers the configuration information of encoding when distributing the encoded data packets, thus effectively utilizing resources provided by each link for user data transmission, improving throughput, and reducing transmission delay.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multipath transmission method, system, data sending device and data receiving device. Background technique [0002] In a wireless cellular communication system, a base station (eNB, or Base Station) is a device that provides wireless access for user equipment (UE, User Equipment, also known as a terminal terminal). The base station and user equipment communicate wirelessly through electromagnetic waves. . A base station may provide one or more serving cells, and the wireless communication system can provide wireless coverage for terminals within a certain geographical range through the serving cells. [0003] In order to provide users with wireless communication in a wide range, a wireless communication system needs to deploy a base station with a large coverage area. This kind of base station is usually called a macro base station (Macro eNB / Macro BS, Macro Bas...

AI Technical Summary

Problems solved by technology

Similarly, if there is a problem with the link from MeNB, data packet 1, data packet 3 and data packet 5 will not be delivered to UE via MeNB, causing problems in the entire data transmission

[0008] In the existing multi-path transmission method, the root cause of the failure of the entire data transmission is that when the data packet is distributed at the anchor point, the data packet is simply distributed to different links for transmission, and the situation of the wireless link is unpredictable. This simple distribution mechanism is difficult to match the actual situation of the changing wireless link

Moreover, even if each link can work normally, the delay of each link and the bandwidth allocated to the user are likely to be different. The ideal division method should be distributed in proportion to the bandwidth allocated to the user by each link , but in fact, the bandwidth allocated to users by each link in the wireless link is dynamically changing and unpredictable. Therefore, because the distribution strategy of multiple paths is difficult to match the actual status of each link, there is a problem of poor allocation. The link distributes too many data packets, while the good link distributes too few data packets, resulting in a greatly limited data transmission efficiency, a decrease in throughput and an increase in delay

In the worst case, when a link is congested or a link fails, the entire data transmission will be interrupted

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