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Control information DCI transmission method and related equipment

A transmission method and technology for control information, applied in the field of control information DCI transmission method and related equipment, can solve problems such as large PDCCH overhead, achieve the effects of reducing PDCCH overhead and solving the limited capacity of PCell control channel

Active Publication Date: 2021-12-03
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the embodiment of this application is to provide a control information DCI transmission method and related equipment, which can solve the problem of large PDCCH overhead of PCell

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  • Control information DCI transmission method and related equipment
  • Control information DCI transmission method and related equipment
  • Control information DCI transmission method and related equipment

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Embodiment Construction

[0045]The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the prote...

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Abstract

The invention discloses a DCI (Downlink Control Information) transmission method and related equipment. The method comprises the following steps: transmitting configuration information which is used for distributing N search space sets; when the number of the PDCCH candidates of the first search space set is greater than the maximum number of the PDCCH candidates supported by the terminal, discarding part or all of the PDCCH candidates of at least one search space in the first search space set to obtain a second search space set; transmitting the DCI on the second search space set; wherein the first search space set is any one search space set in N search space sets, at least one search space set in the N search space sets comprises a first search space, the first search space is a search space for scheduling a second cell by a first cell, and the first cell is an auxiliary cell; the number of the PDCCH candidates of the second search space set is smaller than or equal to the maximum number of the PDCCH candidates supported by the terminal. According to the embodiment of the invention, the problem that the PDCCH overhead of the PCell is relatively high is solved.

Description

technical field [0001] The present application belongs to the technical field of communication, and in particular relates to a DCI transmission method for control information and related equipment. Background technique [0002] In a new radio interface (New Radio, NR) system, a physical downlink control channel (Physical downlink control channel, PDCCH) carries downlink control information (Downlink Control Information, DCI). After a series of scrambling, modulation and coding processes, the DCI will be mapped to physical resources in units of control channel elements (Control Channel Elements, CCEs). For each DCI, L=1, 2, 4, 8 or 16 CCEs can be allocated, where the number of CCEs of the DCI is expressed as an aggregation level (Aggregation level, AL). A DCI with AL=L will be mapped to a control resource set (CORESET) configured by the network device. In addition, the network device configuration can search space (Search space, SS) set, SS includes the following two types:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04W72/0446H04W72/046H04W72/1263H04L5/0053H04L5/0096H04L5/0035H04L5/0032H04W72/23H04L5/0094H04W72/1273
Inventor 李娜刘思綦
Owner VIVO MOBILE COMM CO LTD
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