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Device and method for scheduling transmission time interval length, communication terminal and base station

A technology of transmission time interval and time interval, which is applied in the field of communication to achieve the effect of improving throughput, good CSI feedback quality, and shortening delay

Active Publication Date: 2020-05-15
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the signal sent in each TTI needs to include physical layer control information, using a shorter TTI length will result in more system overhead (overhead) in data transmission, for example, in each physical downlink shared channel (Physical In the DownlinkShared Channel (PDSCH) TTI, the physical downlink control channel (Physical Downlink ControlChannel, PDCCH) or the downlink control information (Downlink Control Information, DCI) sent on the enhanced PDCCH is required

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  • Device and method for scheduling transmission time interval length, communication terminal and base station
  • Device and method for scheduling transmission time interval length, communication terminal and base station
  • Device and method for scheduling transmission time interval length, communication terminal and base station

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Embodiment Construction

[0026] Embodiments of the present invention provide an apparatus and method for scheduling TTI length, so as to improve reliability of data transmission and increase throughput.

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The invention has been described with reference to specific embodiments. Therefore, the disclosed embodiments should not be construed to unduly limit the invention.

[0028] An embodiment of the present invention provides an apparatus for scheduling a TTI length, which schedules an appropriate TTI length to a communication base station according to acquired coherence time estimation data. refer to figure 1 , an embodiment of the present invention provides an apparatus 100 for scheduling a TTI length, including a processor 102 and a scheduler 104 .

[0029] The p...

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Abstract

The present invention provides a device and method for scheduling transmission time interval length, wherein the device for scheduling TTI includes: a processor for acquiring coherence time estimation data, at least one threshold and multiple candidate TTI lengths; establishing coherence time estimation data and at least one A correspondence between the comparison result of the threshold and a plurality of candidate TTI lengths; and comparing the coherence time estimation data with at least one threshold; and a scheduler, configured to establish a correspondence based on the comparison result of the coherence time estimation data and the at least one threshold , schedule TTI lengths to the communication base station from multiple candidate TTI lengths. The invention also provides a communication terminal and a base station. The technical solution provided by the present invention uses a shorter TTI, shortens the delay in receiving periodic and aperiodic CSI reports, obtains better CSI feedback quality, and improves the reliability of data transmission and user-perceived throughput. Longer TTI reduces system overhead and improves throughput that can be effectively utilized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a device and method for scheduling the length of a transmission time interval, a communication terminal and a communication base station. Background technique [0002] The quality of channel state information (Channel State Information, CSI) estimation plays an important role in the reliability and throughput of communication links. In a dynamic environment, that is, when the transmitter and receiver are moving rapidly, the CSI reporting delay is required to be as short as possible. Otherwise, the received CSI estimate cannot accurately describe the current communication channel conditions. Channel coherence time refers to the time period during which channel conditions remain unchanged. Specifically, the faster the transmitter and receiver move, the shorter the coherence time. [0003] At the physical layer, many cellular communication systems schedule data tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W72/12H04L1/16
CPCH04L1/1678H04W28/0268H04W72/54
Inventor 塔帕尼·韦斯特曼卡尔·兰皮宁
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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