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Data transmission method and devices

A data transmission method and technology of transmission blocks, which are applied in the direction of digital transmission system, transmission system, and multiple use of transmission paths, etc., and can solve the problems of data transmission efficiency decline and affecting system transmission efficiency, etc.

Pending Publication Date: 2018-07-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing TB-based HARQ feedback and retransmission mechanism reduces data transmission efficiency, which in turn affects system transmission efficiency

Method used

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  • Data transmission method and devices
  • Data transmission method and devices
  • Data transmission method and devices

Examples

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Embodiment Construction

[0105] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0106] figure 1 A communication system 100 to which an embodiment of the present invention is applied is shown. The communication system 100 may include at least one radio access network device 110 and multiple terminal devices 120 located within the coverage of the radio access network device 110 . figure 1 One wireless access network device and two terminal devices are exemplarily shown. Optionally, the communication system 100 may include multiple wireless access network devices and each wireless access network device may include other The number of terminal devices is not limited in this embodiment of the present invention.

[0107] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, to which this embodiment of the present in...

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Abstract

The application provides a data transmission method and devices. The data transmission method comprises the following steps: a wireless access network device sends a first transmission block to the terminal device, wherein the first transmission block comprises at least two coding blocks, the at least two coding blocks are divided into at least two different coding block sets according to the division mode, and each coding block set comprises at least one coding block in the at least two coding blocks; and the wireless access network device receives first feedback information sent by the terminal device, wherein the first feedback information comprises at least two pieces of feedback information corresponding to the first transmission block, and the at least two pieces of feedback information is used to indicate the receiving state of the at least two coding block sets.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a data transmission method and device. Background technique [0002] The downlink and uplink of the LTE (Long Term Evolution) system are based on OFDMA (Orthogonal Frequency Division Multiplexing Access) and SC-FDMA (Single Carrier-Frequency Division Multiplexing Access) respectively. use multiple addresses). Time-frequency resources are divided into OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbols or SC-FDMA symbols (OFDM symbols or SC-FDMA symbols are also called time-domain symbols) in the time domain dimension and frequency domain dimensions subcarriers. The smallest resource granularity into which time-frequency resources are divided is called an RE (Resource Element, resource unit), which means a time-frequency lattice point composed of a time-domain symbol in the time domain and a subcarrier in the frequency domain....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04W72/12
CPCH04L1/0081H04L1/18H04W72/23H04W72/12H04L1/1614H04L1/1887H04L1/1896H04L5/0055H04L5/0091H04L5/0044H04L5/0053H04L1/1607H04L1/1812H04W28/04
Inventor 官磊马莎
Owner HUAWEI TECH CO LTD
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