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Transmission method, terminal equipment and network side equipment

A technology of network side equipment and transmission method, which is applied to transmission systems, digital transmission systems, multiple use of transmission paths, etc., can solve problems such as reducing DCI overhead, and achieve the effect of reducing DCI overhead.

Active Publication Date: 2022-03-29
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a transmission method, terminal equipment and network side equipment to solve the problem of reducing DCI overhead

Method used

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  • Transmission method, terminal equipment and network side equipment
  • Transmission method, terminal equipment and network side equipment
  • Transmission method, terminal equipment and network side equipment

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Embodiment Construction

[0052] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0053] see image 3 , image 3 It is a schematic flowchart of a transmission method provided by an embodiment of the present invention, and the method is applied to a terminal device. Such as image 3 shown, including the following steps:

[0054] Step 301, receiving DCI (Downlink Control Information, downlink control information) sent by the network side device, the DCI includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS (Demodulation Reference Signal, demodulation reference signal) port gather.

[0055] In the repeated transmission scenario, the network side device sends DCI to the terminal device, and after receiving the DCI, the terminal device obtains the DMRS port set indicated by the ante...

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Abstract

The invention provides a transmission method, terminal equipment and network side equipment, and aims to solve the problem of how to reduce DCI (Downlink Control Information) overhead. The method corresponding to the terminal device comprises: receiving downlink control information (DCI) sent by a network side device, the DCI comprising an antenna port indication field, and the antenna port indication field being used for indicating a demodulation reference signal (DMRS) port set; sending a first physical uplink shared channel (PUSCH) and at least one second PUSCH; the first PUSCH adopts a first DMRS port set indicated by the antenna port indication field, and a second DMRS port set adopted by the second PUSCH is a subset of the first DMRS port set. In the present invention, a terminal determines a DMRS port set corresponding to a plurality of PUSCHs through one antenna port indication field, and compared with the one-to-one correspondence relationship between the antenna port indication field and the DMRS port set in the prior art, the DCI overhead can be reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a transmission method, terminal equipment and network side equipment. Background technique [0002] In a wireless communication system, a network side device demodulates a PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) based on a channel estimation result of a demodulation reference signal (Demodulation Reference Signal, DMRS). In order to improve the reliability of data transmission, the network side device can send downlink control information (Downlink Control Information, DCI) in a specific format to the terminal side device in PDCCH (Physical Downlink Control Channel, physical downlink control channel), the downlink control information includes Indication information for determining the DMRS antenna port number used by the scheduled uplink data. The terminal device determines the DMRS antenna port according to the indication informatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0053H04L5/00
Inventor 李岩王飞郑毅柯颋刘建军
Owner CHINA MOBILE COMM LTD RES INST