A data frame transmission method and transmission device thereof
A transmission method and data frame technology, applied in the direction of digital transmission system, transmission system, synchronization device, etc., can solve the problems such as long time of transmission data occupying the channel, interference and influence, and channel utilization rate deterioration, etc., so as to improve the effective data transmission. The effect of efficiency
Active Publication Date: 2017-05-24
HYTERA COMM CORP
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Problems solved by technology
Because the transmission method in the prior art carries a lot of redundant and repeated control information, the effective data transmission efficiency will be reduced, the channel utilization rate will be deteriorated, the transmission data will occupy the channel for a longer time, and it will be more likely to cause interference and impact on other services
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[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0031] Figure 6 A method for improving effective data transmission efficiency in a preferred embodiment of the present invention is shown, including the following steps:
[0032] The data service sender encapsulates a standard data header, a private data header for carrying control information, and at least one data superframe and sends it to the link; the data superframe consists of subsequent data blocks with frame synchronization and subsequent data blocks without frame synchronization. The data block is composed according to the preset ratio; the control information includes the synchronization ratio, and the synchronization ratio is consistent with the preset ratio; when the data service receiving end receives the...
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The invention discloses a data frame transmission method and a data frame transmission device, and relates to the field of wireless communication. The method comprises the following steps: a data business sending terminal sends a standard data head, a private data head and at least one data super-frame to a link after the standard data head, the private data head and at least one data super-frame are packaged; the data super-frames are formed by subsequent data blocks with frame synchronization and the subsequent data blocks without frame synchronization according to a preset proportion; a synchronization proportion and the preset proportion of control information is consistent; and when a data business receiving terminal receives a data frame, the standard data head and the private data head are decoded so that control information carried in the private data head is obtained, and load data in the subsequent data blocks are received and processed according to control information. The private data head is additionally arranged on the data frame sending terminal, and a receiving mode of the subsequent data blocks is indicated via the defined control information in the private data head so that partial subsequent data blocks can carry extra load data, and thus effective data transmission efficiency of a channel is enhanced.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a data frame transmission method and a transmission device thereof. Background technique [0002] In DMR (Digital Mobile Radio, digital mobile radio) and PDT (Police Digital Trunking, police digital trunking) standards, the standard data frame format and its data filling process are as follows: figure 1 and figure 2 As shown, the 96-bit user data is processed by FEC (Forward Error Correction, Forward Error Correction) and interleaved to generate 196-bit data to be filled on both sides of the data frame respectively. In the data transmission service, it is necessary to send a standard data header or a standard data header plus a private data header first, followed by multiple standard data blocks. Standard data transfer procedures such as image 3 As shown in the figure, it can be seen from the figure that in the current implementation, each data block carries frame synch...
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IPC IPC(8): H04L1/00H04L7/00
Inventor 张颖哲谢汉雄
Owner HYTERA COMM CORP