Data Transmission Method and Device,申请号US201314431445-传众专利搜索

Data Transmission Method and Device

申请公布号：US2015254197(A1)

申请号：US201314431445

申请日期：2013.09.26

申请公布日期：2015.09.10

申请人：

ZTE CORPORATION

发明人：Liao Zhou

分类号：G06F13/32;G06F13/364;G06F13/16;G06F13/372

主分类号：G06F13/32

地址：Shenzhen, Guangdong CN

摘要：An embodiment of the disclosure relates to the field of data transmission, in particular to a data transmission method and a data transmission device, for solving the problems of low data transmission efficiency and poor Direct Memory Access (DMA) performance in a method of arbitrating each DMA channel in a round-robin mode and transmitting data according to an arbitration result. The method in the embodiment of the disclosure includes that: for each DMA channel, an arbitration unit corresponding to the channel among a plurality of arbitration units is determined according to transmission performance corresponding to data in the channel; and when data in channels corresponding to at least two arbitration units need to be transmitted, the data are transmitted according to priorities of the at least two arbitration units. The embodiment of the disclosure first transmits data corresponding to a channel with good transmission performance corresponding to the data in the channel, and keeps a bus unblocked, thus improving data transmission efficiency and improving DMA performance.

主权项：1. A data transmission method, comprising: for a Direct Memory Access (DMA) channel, determining an arbitration unit corresponding to the channel among a plurality of arbitration units according to transmission performance corresponding to data in the channel; when determining that data in channels corresponding to at least two arbitration units need to be transmitted, transmitting the data according to priorities of the at least two arbitration units.