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Uplink frame transmission method and device

A technology of frame transmission and transmission unit, applied in the field of uplink frame transmission method and device, capable of solving problems such as no support solution, achieving the effect of improving reliability, effectiveness and accuracy

Active Publication Date: 2020-04-17
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering that communication over LAA needs to apply a carrier sense mechanism, there is currently no solution to support the above two SRS transmission scenarios in LAA

Method used

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  • Uplink frame transmission method and device
  • Uplink frame transmission method and device
  • Uplink frame transmission method and device

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Embodiment Construction

[0037]Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The accompanying drawings show, by way of example only, specific embodiments in which the present disclosure can be implemented, and the illustrated embodiments are not intended to exhaust all embodiments according to the present disclosure. Those skilled in the art can obtain alternative implementations from the following description without departing from the spirit and protection scope of the embodiments of the present disclosure, and make structural or logical modifications. Accordingly, the following detailed description is not limiting, and the scope of embodiments of the present disclosure is defined by the appended claims. It should be noted that although the steps of the relevant methods in the embodiments of the present disclosure are described in a specific order in the drawings, this does not require or imply that these operations must be perform...

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Abstract

Embodiments of the present disclosure provide a method and apparatus for uplink frame transmission. The method comprises: reserving a specific time-domain resource immediately preceding an OFDM symbol for transmission of a Sounding Reference Signal (SRS); and performing a Clear Channel Assessment (CCA) check with the reserved time-domain resource. The method may further comprise: reserving a further specific time-domain resource immediately preceding an OFDM symbol for transmission of PUSCH data; and performing a CCA check with the further reserved time-domain resource. The embodiments of the present disclosure further disclose a corresponding apparatus for uplink frame transmission. The embodiments of the present disclosure propose a solution of SRS transmission and PUSCH transmission in a Licensed Assisted Access (LAA), which enhances reliability and effectiveness of SRS transmission and PUSCH transmission.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the field of wireless communication, and in particular, relate to a method and device for uplink frame transmission. Background technique [0002] In the current LTE system, data transmission occurs on a licensed spectrum (Licensed Spectrum). However, with a sharp increase in traffic, the licensed spectrum may be difficult to meet the demand of the traffic. 3GPP has started to study LTE deployment on unlicensed spectrum, and proposed the concept of license assisted access (LAA: License Assisted Access), using the unlicensed frequency band with the help of LTE licensed spectrum. The communication on the LAA needs to apply the carrier sense (LBT: ListenBefore Talk) mechanism, that is, before using the unlicensed spectrum for communication, it is necessary to apply the clear channel assessment (CCA: ClearChannel Assessment) to detect whether the channel is available, so as to prevent unlicensed Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04L5/00
CPCH04L5/0048H04W74/0816H04L27/0006
Inventor 陶涛刘建国孟艳叶思根谷俊嵘
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD