Data transmission method and device and computer storage medium
A data transmission method and data frame technology, applied in the field of communication, can solve the problems of limited use range, increased terminal power consumption, frequent interaction between terminal hardware and operating system, etc., to achieve real-time performance and ease data congestion.
Active Publication Date: 2019-05-28
HUAWEI TECH CO LTD
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Problems solved by technology
First of all, the interaction between terminal hardware and operating system is relatively frequent, which increases terminal power consumption
Secondly, the detection of the amount of data accumulated in the buffer and the reporting of AT commands require the cooperation of the chip, which requires high chip requirements. However, most of the chips produced by manufacturers currently do not support the above functions, and their scope of use is limited.
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Embodiment Construction
[0039] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings of the present invention.
[0040] The inventor of the present application found in the process of filing the present application that: the prior art proposes a data transmission control scheme based on the MAC layer. Such as figure 2 , in the process of data transmission, the modem can be used to detect the amount of data accumulation in the chip buffer. When the amount of accumulated data exceeds the preset threshold, a congestion alarm can be reported to the congestion control module through an AT command. Correspondingly, after receiving the congestion warning, the congestion control module adjusts the rate of data transmission. However, in practice, at least the following three problems have been found:
[0041] First, the terminal hardware interacts frequently with the operating system, which increases terminal pow...
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The embodiment of the invention discloses a data transmission method and device and a computer storage medium, and the method comprises the steps: carrying out the coding and packaging of a to-be-transmitted data stream, and obtaining a to-be-transmitted data frame; Determining congestion indication information of data queues in a transmission layer, the data queues being used for arranging the to-be-transmitted data frames, and the congestion indication information being at least used for indicating whether the data queues generate data congestion; And according to the congestion indication information of the data queue, carrying out transmission control on the to-be-transmitted data frame. By adopting the embodiment of the invention, the data congestion can be timely discovered, and thetransmission delay of the data frame and the packet loss rate of important data when the data congestion occurs are reduced in combination with the congestion management mechanism of the data queue; Besides, the length of the data queue can be reduced by reducing the coding rate of the data flow, and the transmission rate of the data frame is reduced, so that the probability of occurrence of secondary data congestion is reduced, and the real-time performance of data transmission is improved.
Description
technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method, device and computer storage medium. Background technique [0002] During the communication process, due to the influence of factors such as terminal power, occlusion, base station deployment, signal weakening, multipath interference, etc., the quality of the transmission channel may deteriorate, the bandwidth of the transmission channel fluctuates greatly, or even the bandwidth is insufficient. prone to network congestion. In particular, for mobile video calls that are widely used at present, the uplink channel is easily affected, resulting in insufficient bandwidth of the uplink channel, causing problems such as video freezing and unsmoothness, and affecting the quality of video calls. Such as figure 1 , showing a schematic diagram of curves showing changes in uplink channel bandwidth and data transmission over time. [0003] In order...
Claims
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IPC IPC(8): H04L12/801H04L12/815H04L12/823H04L12/863H04L29/06H04L47/22H04L47/32
Inventor 斯亮刘欣
Owner HUAWEI TECH CO LTD