Data first transmission and retransmission method

A first transmission and data technology, applied in the direction of digital transmission system, transmission system, error prevention/detection using the return channel, etc., can solve the problems of poor data transmission reliability and achieve the effect of increasing robustness

Active Publication Date: 2017-05-10
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems such as poor data transmission relia

Method used

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  • Data first transmission and retransmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The base station generates a data block containing 160 bits, the data block contains 16-bit redundancy check information, and the terminal trying to receive the data block must pass a check based on the redundancy check information to confirm whether it has successfully obtained the A data block, preferably, the data block is a coded bit stream obtained through physical layer coding.

[0043] The base station generates four first-type sub-data blocks each containing 40 bits and one second-type sub-data block with a length of 40 bits based on the data block. The first type of sub-data block is extracted from the data block at equal intervals, or sequentially selected from the starting position of the data block, as shown in the attached figure 2 As shown, each of the first type sub-data blocks includes part of the data block, the union of the four first sub-data blocks is equal to the data block, and the intersection is an empty set. as attached image 3 As shown, the...

Embodiment 2

[0052] The base station receives the feedback information sent by the terminal, and the feedback information notifies the base station of a set of candidate transmission beams that can be used to transmit data to the terminal, the candidate transmission set includes 10 transmission beams and the corresponding reception quality of these transmission beams information.

[0053] The base station selects four transmission beams from the candidate transmission set to transmit data blocks to the terminal according to the rules agreed with the terminal, for example, selects four transmission beams with the best reception quality, or selects according to a predetermined pattern.

[0054] The base station generates a data block containing 160 bits, the data block contains 16-bit redundancy check information, and the terminal trying to receive the data block must pass a check based on the redundancy check information to confirm whether it has successfully obtained the A data block, pref...

Embodiment 3

[0064] The base station generates a data block containing 160 bits, the data block contains 16-bit redundancy check information, and the terminal trying to receive the data block must pass a check based on the redundancy check information to confirm whether it has successfully obtained the A data block, preferably, the data block is a coded bit stream obtained through physical layer coding.

[0065] The base station generates four first-type sub-data blocks each containing 40 bits and one second-type sub-data block with a length of 40 bits based on the data block. The first type of sub-data block is extracted from the data block at equal intervals, or sequentially selected from the starting position of the data block, as shown in the attached figure 2 As shown, each of the first type sub-data blocks includes part of the data block, the union of the four first sub-data blocks is equal to the data block, and the intersection is an empty set. as attached image 3 As shown, the...

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Abstract

The invention provides a data first transmission and retransmission method, comprising: generating from an x-bit data block N first type sub-data blocks containing X/N bit; then, based on the N first type sub-data blocks, generating a second type sub-data block including X/N bit through the exclusive OR mode to the bit; based on the second type sub-data block, obtaining N third type sub-data blocks containing X/N2 bit; then, forming the N first type sub-data blocks and the N third type sub-data blocks as N transmission sub-data modules for transmission on N sending wave beams; utilizing the received third type sub-data blocks at a receiving terminal for an attempt to recover the first type sub-data blocks with errors; if the recovery is yet to be successful, then, replacing the third type sub-data blocks in the Y sub-data modules whose receiving signal-to-noise ratios are the poorest with the second type sub-data block for retransmission. The method of the invention can effectively increase the robustness for data transmission so as to adapt for the business requirement of a 5G communication system.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a data transmission method in the fifth generation wireless communication system. Background technique [0002] With the rise of smart terminals and the enrichment of wireless data application services, the number of data users in wireless communication systems has increased significantly, and data content is no longer limited to traditional text or images. The demand is increasing, leading to the explosive growth of wireless network traffic. According to market forecasts, in the next 10 years, wireless data services will increase by 500 to 1,000 times, with an average annual growth of 1.6 to 2 times, which puts higher requirements on the network capacity of wireless communication systems. [0003] Facing 2020 and the future, mobile Internet and Internet of Things services will become the main driving force for the development of mobile communications. 5G will meet the diver...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/00H04L1/16H04W24/02
CPCH04L1/0061H04L1/1607H04L1/18H04W24/02
Inventor 王洋
Owner SHENZHEN POLYTECHNIC
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