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Method and equipment for data transmission

A data transmission and data technology, which is applied in the direction of digital transmission system, transmission system, and transmission path for multiple use, can solve the problems of real-time performance and low reliability

Active Publication Date: 2016-06-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and equipment for data transmission, which is used to solve the problem of low real-time performance and reliability in the current wireless communication system transmission mode existing in the prior art

Method used

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  • Method and equipment for data transmission

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0216] Example 1: Redundant Coding Matrix and Multi-Channel Transmission Notification

[0217] Step 1: The terminal establishes at least one wireless link with the network side for the multi-channel transmission decision-making entity to send a notification message.

[0218] Step 2: The multi-channel transmission decision-making entity determines to enable multi-channel transmission and redundant coding. The multi-channel transmission decision-making entity may be located in the core network or be a high-level entity independent of the wireless transmission system.

[0219] Step 3: The multi-channel transmission decision-making entity notifies the terminal of the redundant transmission parameters through high-layer signaling, such as IP layer signaling. The notification message can be sent on only one wireless link, and this link can be called the main connection link. Redundant transmission parameters include one or more of the following:

[0220] redundant matrix;

[022...

example 4

[0248] Example 4: Part of the data of different wireless transmission channels does not pass through the core network

[0249] Downstream transmission:

[0250] Step 1: The service source network sends the original data to the data aggregation entity through the wired network (such as IP packets transmitted through the IP network).

[0251] Step 2: The data aggregation entity performs redundant coding on the original data from the business source, generates an output data packet group, and distributes the data in the output data packet group to the network side entity, Figure 5 core network 1 and base station 2, Figure 5 It is the simplest example of redundant coding, that is, the redundant coding method transmits the same original service data packet for each wireless link, as long as one link transmits the service data packet correctly.

[0252] Step 3: The core network 1 distributes the data packets from the data aggregation entity to the base station 1;

[0253] Step ...

Embodiment 5

[0262] Embodiment five: service data packet transport layer feedback, for details, please refer to Figure 6 .

[0263] Step 1: The multi-channel transmission decision-making entity configures a transmission channel (including a wireless link and a transmission network) for sending a transport layer feedback packet.

[0264] Step 2: The sending side generates service data packets, and transmits them on multiple channels after being redundantly encoded.

[0265] Step 3: The receiving side receives the business data transmitted by multiple channels, and generates a feedback data packet after combining and processing. After receiving the multi-channel transmission, the terminal in the figure below merges and processes and generates a feedback data packet.

[0266] Step 4: The receiving side sends a feedback data packet to the sending side on the configured transmission channel. In the figure below, the terminal only sends the feedback data packet on wireless link 1 and transmiss...

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PUM

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Abstract

An embodiment of the invention relates to the technical field of wireless communication, and particularly relates to a method and equipment for data transmission, which are used for solving problem of low requirements on real-time performance and reliability of the transmission method of the present wireless communication system in the prior art. The method comprises the steps that a transmitting side determines a plurality of wireless links in need for transmission between the transmitting side and a receiving side, and transmits data packets of same service to the receiving side through the determined plurality of wireless links. Since the data packets of the same service are transmitted through the plurality of wireless links in a redundant mode, resources of different wireless channels connected with the receiving side can be fully utilized, thereby improving the real-time performance and reliability; and comparing with the present wireless communication system, the method and the equipment provided by the invention can better support requirements on real-time performance and reliability of new applications such as machine-type communication.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for data transmission. Background technique [0002] With the development of the mobile Internet and the Internet of Things, the demand for business data volume has exploded. Massive device connections and diversified Internet of Things services have also brought new technical challenges to mobile communications. The delay and reliability of existing communication systems are designed for human-to-human communication. In terms of delay and reliability, future wireless mobile communication systems must not only continue to better meet the communication needs of human users, but also meet the needs of human users. The real-time and reliability requirements of MTC (Machine Type Communications) promote new applications in industrial fields such as traffic safety, traffic efficiency, and smart grids, so that the concept of a smart society and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/00
Inventor 谌丽秦飞焦斌康绍莉
Owner DATANG MOBILE COMM EQUIP CO LTD
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