CSI REPORTING WITHOUT FULL CSI-RS PRESENCE INTRODUCTION

Title:

CSI REPORTING WITHOUT FULL CSI-RS PRESENCE INTRODUCTION

Document Type and Number:

WIPO Patent Application WO/2020/061840

Kind Code:

A1

Abstract:

Certain aspects of the present disclosure provide techniques for CSI reporting without full channel state information reference signal (CSI-RS) presence in a subband. A method generally receiving channel state information (CSI) reporting configuration information configuring the UE to perform CSI measurement and reporting, based on one or more CSI reference signals (CSI-RSs), in one or more subbands (SBs) of a bandwidth part (BWP) of a system bandwidth, determining if a first SB of the one or more SBs includes a valid CSI-RS presence based on whether one or more threshold conditions, involving CSI-RS resources included in the first SB, are satisfied, and transmitting a CSI report corresponding to the first SB if it is determined that the first SB includes a valid CSI-RS presence.

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Inventors:

HAO CHENXI (US)
ZHANG YU (US)
GAAL PETER (US)
CHEN WANSHI (US)

Application Number:

PCT/CN2018/107701

Publication Date:

April 02, 2020

Filing Date:

September 26, 2018

Export Citation:

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Assignee:

QUALCOMM INC (US)
HAO CHENXI (CN)
ZHANG YU (CN)
GAAL PETER (US)
CHEN WANSHI (US)

International Classes:

H04L5/00; H04W72/04

Domestic Patent References:

WO2018104864A1

2018-06-14

Foreign References:

CN107911203A

2018-04-13

Other References:

NOKIA ET AL.: "On the CSI reference symbols configurations in NR", 3GPP TSG-RAN WGI#87, R1-1612855, vol. RAN WG1, 13 November 2016 (2016-11-13), pages 2, XP051176796
NOKIA ET AL.: "Flexible CSI-RS configuration for CSI measurement", 3GPP TSG-RAN WGI#86BIS, R1-1610270, vol. RAN WG1, 9 October 2016 (2016-10-09), XP051150287
QUALCOMM INCORPORATED: "Maintenance for CSI-RS", 3GPP TSG RAN WGI MEETING #93, R1-1807346, vol. RAN WG1, 20 May 2018 (2018-05-20), XP051442538

Attorney, Agent or Firm:

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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