USER EQUIPMENTS, BASE STATIONS AND METHODS FOR CONFIGURABLE DOWNLINK CONTROL INFORMATION FOR DEMODULATION REFERENCE SIGNAL FOR A PHYSICAL UPLINK SHARED CHANNEL

Title:

USER EQUIPMENTS, BASE STATIONS AND METHODS FOR CONFIGURABLE DOWNLINK CONTROL INFORMATION FOR DEMODULATION REFERENCE SIGNAL FOR A PHYSICAL UPLINK SHARED CHANNEL

Document Type and Number:

WIPO Patent Application WO/2021/090604

Kind Code:

A1

Abstract:

A user equipment (UE) is described. The UE includes transmitting circuitry configured to transmit a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH). In a case that a number of bits for downlink control information (DCI) used for indicating an index of an uplink antenna port(s) is more than 1 bit, the DMRS for the PUSCH is transmitted using the index of an uplink antenna port(s) indicated by using the DCI used for indicating the index of the uplink antenna port(s). In a case that a number of bits for downlink control information (DCI) used for indicating an index of an uplink antenna port(s) is 0 bit, the DMRS for the PUSCH is transmitted using an index of the uplink antenna port(s) configured by using first information.

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Inventors:

AIBA TATSUSHI
YING KAI
YOKOMAKURA KAZUNARI

Application Number:

PCT/JP2020/036441

Publication Date:

May 14, 2021

Filing Date:

September 25, 2020

Export Citation:

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Assignee:

SHARP KK (JP)

International Classes:

H04W16/28; H04W72/04

Other References:

INTEL CORPORATION: "On PDCCH enhancements for URLLC", 3GPP DRAFT; R1-1910660 INTEL - EURLLC PDCCH ENHANCEMENTS_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 8 October 2019 (2019-10-08), XP051789452
ANONYMOUS: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Multiplexing and channel coding (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.212, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. V15.7.0, 28 September 2019 (2019-09-28), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 101, XP051785088