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Microslot indication method, microslot determination method, communication device and computer storage medium

A micro-slot and indication technology, applied in wireless communication, electrical components, etc., can solve the problems of high signaling overhead, unable to solve avoidance, avoidance, etc., and achieve high flexibility, reduce signaling overhead, and small signaling overhead Effect

Active Publication Date: 2019-01-04
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 5G NR, certain services are allowed to use multiple mini-slots for transmission, but during the transmission process, due to the different priority of service transmission, there may also be timeslot avoidance, which leads to the transmission of mini-slots For the problem of uncertain timing, if static scheduling is used, it is obviously impossible to solve the problem caused by avoidance. If dynamic scheduling is used, the scheduling result needs to be notified to the terminal before each scheduling, which leads to a large signaling overhead. question

Method used

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  • Microslot indication method, microslot determination method, communication device and computer storage medium
  • Microslot indication method, microslot determination method, communication device and computer storage medium
  • Microslot indication method, microslot determination method, communication device and computer storage medium

Examples

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example 1

[0155] The base station uses one first DCI and at least one second DCI to jointly schedule multiple mini-slot transmissions; wherein, the second DCI is used to determine the time domain position of each mini-slot. Wherein, the mini-slot includes at least one transmission symbol, but the number of transmission symbols included is less than the number of transmission symbols included in the subframe, and the transmission symbol may include an orthogonal frequency division multiplexing technology transmission symbol.

[0156] The first DCI can be used to determine the frequency domain position of the scheduling resource, and the second DCI can determine the initial transmission symbol and time domain length of each mini-slot. The time domain length here is the duration of the scheduled resource in the time domain.

[0157] in Figure 4 , The first DCI and the second DCI should occupy at least one transmission symbol in the time domain. in Figure 4 The middle black square represents ...

example 1

[0224] Example 1: Include a field indicating the number of HARQ processes in each second DCI;

example 2

[0225] Example 2: The number of HARQ processes of the nth second DCI=the number of HARQ processes of the first DCI+n-k, where n=1, 2, .... Among them, k is a preset constant. For example, k=1.

[0226] In summary, in this example, the base station uses one first DCI and at least one second DCI to jointly schedule multiple mini-slot transmissions; where the second DCI is used to determine the time domain position of each mini-slot.

[0227] The time domain position of the second DCI may be located in the first transmission symbol of each scheduled mini-slot.

[0228] 5G NR already supports the scheduling of multiple mini-slots, which allows one DCI to schedule multiple mini-slots at once.

[0229] For some application scenarios (such as URLLC UE avoiding the DMRS transmission symbol of the eMBB service, or avoiding the more urgent URLLC service), it is beneficial to be able to dynamically determine and indicate the starting position of each mini-slot.

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Abstract

The embodiments of the invention disclose a microslot indication method, a microslot determination method, a communication terminal and a computer storage medium. The microslot indication method applied to a base station includes the following steps that: first downlink control information (DCI) is utilized to indicate a frequency domain location where a microslot is located for a terminal; and atleast one piece of second DCI is utilized to indicate a time-domain location where the microslot is located for the terminal.

Description

Technical field [0001] The present invention relates to the field of wireless communication, and in particular to a method for indicating and determining mini-slots, communication equipment and computer storage media. Background technique [0002] In the fifth generation (5G) new interface (NR), the time slot unit of the mini-slot is proposed. The mini-slot includes at least one transmission symbol, and the total number of transmission symbols included is less than the total number of transmission symbols included in the time slot. In 5G NR, some services are allowed to use multiple mini-slots for transmission, but during the transmission process, due to the different priority of service transmission, there may be time slot avoidance, which leads to the transmission of mini-slots The problem of uncertain timing, if static scheduling is used, obviously cannot solve the problem caused by avoidance. If dynamic scheduling is used, the scheduling result of the terminal needs to be no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/0446H04W72/23
Inventor 柯颋侯雪颖夏亮董静童辉
Owner CHINA MOBILE COMM LTD RES INST