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Data transmission method and device

A data transmission method and technology of transmission time interval, applied in the field of communication, can solve problems such as uplink channel collision

Active Publication Date: 2018-11-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention provides a data transmission method and device to solve the problem of collision of uplink channels transmitted with different TTI lengths in the same time unit without a related solution in the prior art

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Embodiment Construction

[0193] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0194] The data transmission method in this embodiment is mainly applied to devices such as terminals and base stations, and of course, other devices may also be used, which is not limited in this application. This embodiment is mainly described in detail by taking the application to a terminal as an example. When it is applied to a base station, the corresponding sending behavior of the terminal is the receiving behavior of the base sta...

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Abstract

The invention discloses a data transmission method and a data transmission device, used for solving the problem, which no relevant solution of the prior art solves, of collision when using uplink channels having different transmission time interval (TTI) lengths for transmission in the same time unit. The method comprises: determining the presence in a time unit i of a first uplink channel using afirst TTI length for transmission and a second uplink channel using a second TTI length for transmission, wherein the first uplink channel and the second uplink channel overlap in time; obtaining a time node of the second uplink channel determined to be present in the time unit i; and / or obtaining the position of the overlapping symbols of the second uplink channel and the first uplink channel inthe time unit i; and on the basis of the time node and / or the position of the overlapping symbols, determining the uplink channel needing to transmit in the time unit i and performing transmission.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and device. Background technique [0002] With the development and change of mobile communication service requirements, many organizations such as the International Telecommunication Union have defined higher user plane delay performance requirements for future mobile communication systems. One of the main methods for shortening user delay performance is to reduce the length of Transmission Time Interval (TTI, Transmission Time Interval), that is, to support short TTI (sTTI, short TTI) transmission. A typical working method of short TTI transmission is to include multiple sTTI transmissions shorter than 1ms in the subframe structure defined in the existing LTE mechanism, such as 2-symbol or 3-symbol or 4-symbol or 7-symbol transmission, Of course, other sTTI transmissions with a length shorter than 1 ms are not excluded. Uplink supports...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/10H04W72/12H04L5/00
CPCH04L5/0048H04L5/0053H04W72/0446H04W72/1268H04W72/56H04L5/00H04W72/00H04W72/04H04W72/12
Inventor 高雪娟潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD