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A data transmission method and device

A data transmission method and a channel transmission technology, which are applied in the field of data transmission methods and devices, and can solve problems such as no clear solution

Active Publication Date: 2020-04-10
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Currently, short TTI transmission has defined that the TTI lengths of sPUCCH and sPUSCH are the same, but it is also possible that a terminal is scheduled for short TTI transmission in a subframe that is scheduled for legacy (traditional) TTI (1ms TTI) transmission, for example, in uplink transmission , sPUCCH and PUSCH / PUCCH (1ms TTI transmission) exist in the same subframe at the same time, or sPUSCH and PUCCH / PUSCH exist in the same subframe at the same time, at this time, there is no clear plan on how to transmit

Method used

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  • A data transmission method and device
  • A data transmission method and device
  • A data transmission method and device

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Embodiment Construction

[0338] With the development and change of mobile communication service requirements, many organizations such as ITU (International Telecommunication Union, 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 TTI (Transmission Time Interval, transmission time interval), thus supporting short TTI transmission. However, there is no clear solution on how to transmit the short TTI at present. In this application, it is proposed to define a transmission scheme when channels with different TTI lengths overlap, select one channel according to predetermined rules, and give up the transmission of another channel or perform punching transmission on another channel. Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0339] In the process of desc...

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Abstract

The present invention discloses a data transmission method and device, including: determining on the terminal side whether the transmission time of an uplink channel transmitted using a first transmission time interval length and an uplink channel transmitted using a second transmission time interval length overlap, and if there is When overlapping, select part of the uplink channels for transmission according to predetermined rules, and give up the transmission of the remaining uplink channels or perform punching transmission for the remaining uplink channels. On the network side, it is determined that the terminal selects one type of uplink channel for transmission according to a predetermined rule, and gives up another type of uplink channel for transmission or performs punching for another type of uplink channel for transmission. By adopting the present invention, the correct transmission of the terminal can also be realized when the channels of different transmission time interval lengths overlap.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a data transmission method and device. Background technique [0002] figure 1 It is a schematic diagram of using frame structure 1 for the LTE FDD system. The existing LTE (Long Term Evolution, long-term evolution) FDD (Frequency Division Duplex, Frequency Division Duplex) system uses a frame structure (frame structure type1, referred to as FS1), and its structure is as follows figure 1 shown. In the FDD system, different carrier frequencies are used for uplink and downlink transmission, and the same frame structure is used for both uplink and downlink transmission. On each carrier, a 10ms long radio frame contains 10 1ms subframes, and each subframe is divided into two 0.5ms long time slots. The duration of TTI (Transmission Time Interval, transmission time interval) for sending uplink and downlink data is 1 ms. [0003] figure 2 It is a schematic diagram of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/0446H04W72/21H04W72/1268H04L1/1671H04W52/346H04W52/367H04L1/0027H04L1/0026H04L5/0007H04L5/0055H04L5/0053H04L5/0058H04W72/569H04W72/53H04W72/535H04L1/0013H04L5/0082H04W74/0833H04W72/23
Inventor 高雪娟潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD
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