Method for link self-adaption of video sensing in HSDPA network

A technology of link adaptation and video perception, which is applied in the field of video perception link adaptation, can solve the problems of difficulty in guaranteeing transmission quality, inability to effectively protect video frame data, and inability to maximize HSDPA transmission capacity, etc., to achieve improved The effect of improving transmission capacity and transmission quality

Active Publication Date: 2014-07-23
徐州国隆电力配件铸造有限公司
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Problems solved by technology

However, there are two defects in this adaptive coding scheme: (1) selecting an adaptive modulation and coding scheme strictly according to BLER less than 10% cannot maximize the transmission capacity of HSDPA
(2) This kind of ...

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  • Method for link self-adaption of video sensing in HSDPA network
  • Method for link self-adaption of video sensing in HSDPA network
  • Method for link self-adaption of video sensing in HSDPA network

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, which are explanations rather than limitations of the present invention.

[0034] In the HSDPA system, many mobile terminal users (UEs) are distributed in a NodeB cell of a base station. After the NodeB scheduler completes the wireless resource scheduling according to the principle of proportional fairness (PF), the system has allocated a certain orthogonal codeword for each mobile terminal user for data transmission, and then the link adaptation algorithm will select the matching AMC modulation code Program to transmit video data.

[0035] A kind of link adaptive algorithm of video perception in the HSDPA network of the present invention, comprises the following steps:

[0036] 1) In each scheduling cycle, calculate the corresponding transmission utility value for the downlink video data packets of mobile terminal users. The utility calculation functi...

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Abstract

The invention discloses a method for link self-adaption of video sensing in an HSDPA network. The method comprises the steps of first calculating video transmission utility of a video packet for the video packet of a terminal user; dynamically calculating transmission capability and a corresponding link self-adaption scheme and transmission error probability according to reporting conditions of wireless channel quality signal interference noise ratio (SINR) of the terminal user; finally utilizing a dynamic programming mathematical method to convert a link self-adaption utility maximum restricted problem to a standard mathematical Knapsack problem, and solving a video transmission utility maximum link self-adaption scheme through limited mathematic iteration. According to the method, factors such as video packet transmission utility, user wireless transmission capability and user wireless transmission error probability are considered comprehensively, and simulation experiments show that the wireless transmission capability of video users in an HSDPA system can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, relates to a video perception link adaptive algorithm, in particular to a video perception link adaptive method in an HSDPA network. Background technique [0002] With the continuous development of electronic technology, terminal products that support high data rates, such as mobile phones, notebook computers, and smart appliances, are becoming more and more popular. In the HSDPA (High Speed ​​Downlink Packet Access) network, how to efficiently transmit video services with a large data rate and perform unified management and scheduling has become a research hotspot. At present, in the HSDPA network, in order to achieve efficient wireless link transmission, the 3GPP organization stipulates a recommended link adaptive algorithm: on the basis of the transmission block error probability BLER not higher than 10%, select the maximum modulation and coding scheme for link road adaptive tr...

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Application Information

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IPC IPC(8): H04L1/00
Inventor 王秦立刘贵忠刘钊
Owner 徐州国隆电力配件铸造有限公司
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