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Terminal device and communication method

A terminal device and antenna port technology, which is applied in the direction of synchronization device, wireless communication, signaling distribution, etc., can solve problems such as path loss and achieve the effect of improving reliability

Pending Publication Date: 2021-06-15
SHARP KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in wireless communication using a high frequency band, path loss becomes a problem

Method used

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  • Terminal device and communication method
  • Terminal device and communication method
  • Terminal device and communication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The communication system in the present embodiment includes a base station device (transmitting device, cell, emission point, transmitting antenna group, transmit antenna port group, component carrier, eNodeb, gnodeb, send point, delivery point, transmitting panel, access point, child Array) and a terminal device (terminal, mobile terminal, receiving point, receiving terminal, receiving device, receiving antenna group, receiving antenna port group, UE, receiving point, receiving panel, site, sub-array). Further, the base station apparatus connected to the terminal device (established wireless link) is referred to as a service cell.

[0025] The base station apparatus and the terminal device in the present embodiment can communicate in a frequency band (authorization band) that requires a license and / or does not require a license frequency band (non-authorized frequency band).

[0026] In the present embodiment, "X / Y" contains "x or y". In the present embodiment, "X / Y"...

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Abstract

Provided are a terminal device and a communication method with which it is possible to improve reliability and frequency usage efficiency in the case of transmission using beam forming. This terminal device is provided with a reception unit which receives a DMRS, DCI, and a PDSCH, and a decoding unit which decodes the PDSCH. The DCI includes a transmission configuration index (TCI) and the number of DMRS antenna ports. The TCI is information indicating a spatial reception filter that receives the DMRS, and the PDSCH includes a transport block. When two of the TCIs are indicated and the number of DMRS antenna ports is a predetermined number or less, and when the DCI includes the setting of one transport block, the PDSCHs transmitted from some of the DMRS antenna ports are received on the basis of a first TCI, the PDSCHs transmitted from the remaining DMRS antenna ports are received on the basis of a second TCI, and the one transport block is decoded.

Description

Technical field [0001] The present invention relates to a terminal device and a communication method. The present application claims priority to Japanese Patent Application No. 2018-205075, filed on October, 2018, claims to be prioritized in Japanese Patent Application No. 2018-205075. Background technique [0002] The business service is based on 2020, and it is actively conducting research / development activities related to the fifth-generation mobile wireless communication system (5G system). Recently, the standard method of 5G system is reported from the International Tector ITU-R in International Telecommunication Union (INTERNATIONAL MOBIT: IMT-2020: 2020 and after the International Telecommunication Union Radio Communications Sector: ITU-R) (INTERNATIONAL TELECMMMMUNCIENCITION) International Mobile Communications IMT-2020) related vision recommendations (refer to Non-Patent Document 1). [0003] Based on the acute growth of the communication system to ensure that the freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W16/28
CPCH04W16/28H04B7/088H04L5/005H04L5/0051H04L5/0053H04L5/0048H04W56/001H04W72/1273H04W72/23
Inventor 山田良太留场宏道难波秀夫浜口泰弘
Owner SHARP KK