US 10,455,594 B2 · Downlink transmission method and user terminal equipment

Abstract

Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.

Claims6

Dependent claims

A method for communication by a user equipment (UE) in a wireless communication system, the method comprising:

performing measurement of a downlink channel;
and
reporting information on a channel quality indicator (CQI) based on the measurement and a CQI table among a plurality of CQI tables,
wherein each of the plurality of CQI tables indicates modulations and code rates for reporting the CQI,
wherein the plurality of CQI tables comprises a first CQI table which supports 256 QAM and a second CQI table which does not support 256 QAM, and
wherein a number of CQI indexes in the first CQI table is equal to a number of CQI indexes in the second CQI table, and
wherein a CQI item of 64QAM with a highest coding rate in the second COI table is not in the first COI table.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/031,317Filed 10 Jul 2018 · continuation

Priority

CN 2013 1 03949913 Sep 2013

Published

US 2018/0332597 A115 Nov 2018

Granted

22 Oct 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

H04W 72/542
Based on quality criteria: using measured or perceived quality
H04B 17/24
Of receivers: with feedback of measurements to the transmitter
H04B 17/309
Of propagation channels: measuring or estimating channel quality parameters
H04L 1/0003
By adapting the transmission rate: by switching between different modulation schemes

Family

PCT/KR2014/002289Parent of this continuation · filed 18 Mar 2014

US 2018/0332597 A1Pre-grant publication · published 15 Nov 2018

Application14/916,399Parent of this continuation

US 10,257,841 B2Parent of this continuation

US 2016/0219600 A1Published application

US 10,455,594 B2This patent

From the US filing history. Foreign family members aren’t listed.

Downlink transmission method and user terminal equipment

Life of this patent

Downlink transmission method and user terminal equipment

Life of this patent

Abstract

Claims6