A data transmission method, device and system

A data transmission method and a transmission block technology, applied in the field of devices and systems, and data transmission methods, can solve the problems of low total throughput of cells and waste of uplink resources, etc., to improve the uplink transmission rate, eliminate interference, and improve the total uplink throughput Effect

Active Publication Date: 2017-11-14
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the case of successful decoding, the corresponding PRBs of the remaining uplink subframes continue to be used only to transmit the redundant version of the transport block, resulting in a waste of uplink resources and ultimately resulting in a lower total uplink throughput of the cell

Method used

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  • A data transmission method, device and system
  • A data transmission method, device and system
  • A data transmission method, device and system

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Embodiment Construction

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Aiming at the problem of wasting uplink resources in the prior art, the inventors of the present invention found that when the quality of the uplink channel of the first terminal using TTI bundling is good, it usually only needs to use the redundant version of less than 4 subframes in one TTI bundling. Translate out the transport...

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Abstract

The invention discloses a data transmission method. For example, the method may be applied to a base station, including: in response to the first terminal in TTI bundling mode transmitting a redundant version of the same transport block in a preset number of consecutive uplink subframes, if it is determined that consecutive uplink subframes to decode the transport block, indicating that the second terminal not in the TTI bundling mode performs uplink transmission on the same PRB as the first terminal in the remaining subframes, and calculates the transport block of the first terminal in the remaining subframes The signal corresponding to the uplink transmission in the subframe; after receiving the uplink mixed signal transmitted by the first terminal and the second terminal on the same PRB, the signal corresponding to the transmission block of the first terminal is removed from the uplink mixed signal to obtain An uplink signal transmitted by the second terminal in the remaining subframes. In addition, the invention also discloses a data transmission device and system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method, device and system. Background technique [0002] In the physical layer of the new generation TD-LTE mobile communication system, OFDMA technology (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) is used in the downlink direction, and SC-FDMA technology (Single-Carrier Frequency Division Multiple Access) is used in the uplink direction. Multiple Access, single carrier frequency division multiple access). In this way, allocating resources for terminals connected to the system can be performed in two dimensions of time domain and frequency domain. In the time domain, the largest unit of resource division is a radio frame with a length of 10ms, and each radio frame includes 10 subframes with a length of 1ms. In the frequency domain, each physical cell uses a carrier, and its frequency band is divided into mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 王讴孙向涛
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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