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A kind of uplink time domain resource indication method and system

A time-domain resource and indication technology, applied in the transmission system, digital transmission system, advanced technology, etc., can solve the problem of resource waste and achieve the effect of improving the utilization rate of PDCCH resources

Active Publication Date: 2022-07-05
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the uplink time-domain scheduling resources in the same time slot of different radio frames are fixed, it is not necessary to dynamically indicate the resources allocated in the time domain in the uplink grant of each time slot in each radio frame, resulting in PDCCH (Physical Downlink Control Channel, physical downlink control channel) resource waste

Method used

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  • A kind of uplink time domain resource indication method and system
  • A kind of uplink time domain resource indication method and system
  • A kind of uplink time domain resource indication method and system

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Embodiment Construction

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] The time-domain scheduling resources for the same uplink time slot are fixed, but the uplink time-domain scheduling resources between different uplink time slots are different scenarios, and the time-domain allocated resources are dynamically indicated in the uplink grant of each time slot It is unnecessary, which will cause waste of PDCCH resources. In order to improve the utilization rate of PDCCH resource...

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Abstract

The present invention provides an uplink time-domain resource indication method and system, including: RRC configures an uplink dynamic time-domain resource indication switch and an uplink time-domain resource allocation table, and sends it to a terminal; and allocates PDCCH resources bearing uplink grants, which will not include The PDCCH bearing the uplink grant in the time domain allocation domain is sent to the terminal. In the present invention, for the scenario where the time domain scheduling resources of the same uplink time slot are fixed and the uplink time domain scheduling resources between different uplink time slots, the uplink grant does not need to carry the time domain resource allocation field, so that the uplink DCI saves several bits, The utilization rate of PDCCH resources is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a method and system for indicating uplink time domain resources. Background technique [0002] In a 5G NR (New Radio, new air interface) system, uplink time domain resources are jointly indicated by RRC (Radio Resource Control, radio resource control) configuration and DCI (Downlink Control Information, downlink control information) dynamic indication. A time-domain resource allocation table is configured in the RRC signaling. The time-domain resource allocation table can be configured with a maximum of 16 lines. Each line includes the time slot where the DCI is located, the time slot interval of uplink data transmission, and the start symbol of uplink data transmission. , the symbol length of uplink data transmission, and the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) mapping type. In DCI, the index of the table to be used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12H04W72/14H04L5/00
CPCH04W72/0446H04L5/0053H04W72/20H04W72/23Y02D30/70
Inventor 钱甜甜江世宇
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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