US 2018/0019796 A1 · METHOD AND APPARATUS OF CONTROLLING PERIODIC CSI REPORTING

Abstract

Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic CSI reporting available in a system supporting a TDD-FDD aggregation operation and an FDD-TDD aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix inidcator may be determined based on the cell type of a primary serving cell for a TDD-FDD carrier aggregation and an FDD-TDD carrier aggregation.

Claims16

Dependent claims

1-20. (canceled)

A method of receiving at least one of a Channel Quality Indicator (CQI) and a Precoding Matrix Indicator (PMI) by a base station, the method comprising:

establishing a Radio Resource Control (RRC) connection with a user equipment (UE) through a first serving cell, the first serving cell supporting a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode;
transmitting an RRC message for the UE through the first serving cell, the RRC message comprising carrier aggregation (CA) configuration information and a cqi-pmi-ConfigIndex, the CA configuration information comprising information of a second serving cell supporting an FDD mode or a TDD mode, and the first serving cell and the second serving cell being aggregated by a TDD-FDD CA scheme or an FDD-TDD CA scheme for the UE;
periodically receiving, from the UE, at least one of CQI and PMI with respect to the second serving cell, the at least one of CQI and PMI being received through the first serving cell or the second serving cell,
wherein a periodicity (Npd) and an offset (NOFFSET,CQI) for the at least one of CQI and PMI are determined based on the cqi-pmi-ConfigIndex, the cqi-pmi-ConfigIndex is a numerical parameter, the periodicity (Npd) is a periodicity for periodically reporting the at least one of CQI and PMI with respect to the second serving cell, and the offset (NOFFSET,CQI) is an offset for periodically reporting the at least one of CQI and PMI, and
when, the first serving cell supports an FDD mode and the second serving cell supports a TDD mode, the periodicity (Npd) and the offset (NOFFSET,CQI) are determined based on the cqi-pmi-ConfigIndex (ICQI/PMI) shown in Table 1:
TABLE 1
ICQI/PM
Value of Npd
Value of NOFFSET, CQI
0 ≦ ICQI/PMI ≦ 1
2
ICQI/PMI
2 ≦ ICQI/PMI ≦ 6
5
ICQI/PMI − 2
7 ≦ ICQI/PMI ≦ 16
10
ICQI/PMI − 7
17 ≦ ICQI/PMI ≦ 36
20
ICQI/PMI − 17
37 ≦ ICQI/PMI ≦ 76
40
ICQI/PMI − 37
77 ≦ ICQI/PMI ≦ 156
80
ICQI/PMI − 77
157 ≦ ICQI/PMI ≦ 316
160
ICQI/PMI − 157
ICQI/PMI = 317
Reserved
318 ≦ ICQI/PMI ≦ 349
32
ICQI/PMI − 318
350 ≦ ICQI/PMI ≦ 413
64
ICQI/PMI − 350
414 ≦ ICQI/PMI ≦ 541
128
ICQI/PMI − 414
542 ≦ ICQI/PMI ≦ 1023
Reserved

40 more elements

A base station receiving at least one of a Channel Quality Indicator (CQI) and a Precoding Matrix Indicator (PMI) from a User Equipment (UE), the base station comprising:

a transmitting unit configured to an RRC message for the UE through the first serving cell the first serving cell supporting a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode, the RRC message comprising carrier aggregation (CA) configuration information and a cqi-pmi-ConfigIndex, the CA configuration information comprising information of a second serving cell supporting an FDD mode or a TDD mode, and the first serving cell and the second serving cell being aggregated by a TDD-FDD CA scheme or an FDD-TDD CA scheme for the UE;
and
a receiving unit configured to periodically receive, from the UE, at least one of CQI and PMI with respect to the second serving cell, the at least one of CQI and PMI being received through the first serving cell or the second serving cell,
wherein a periodicity (Npd) and an offset (NOFFSET,CQI) for the at least one of CQI and PMI are determined based on the cqi-pmi-ConfigIndex, the cqi-pmi-ConfigIndex is a numerical parameter, the periodicity (Npd) is a periodicity for periodically reporting the at least one of CQI and PMI with respect to the second serving cell, and the offset (NOFFSET,CQI) is an offset for periodically reporting the at least one of CQI and PMI, and
when, the first serving cell supports an FDD mode and the second serving cell supports a TDD mode, the periodicity (Npd) and the offset (NOFFSET,CQI) are determined based on the cqi-pmi-ConfigIndex (ICQI/PMI) shown in Table 3:
TABLE 3
ICQI/PM
Value of Npd
Value of NOFFSET, CQI
0 ≦ ICQI/PMI ≦ 1
2
ICQI/PMI
2 ≦ ICQI/PMI ≦ 6
5
ICQI/PMI − 2
7 ≦ ICQI/PMI ≦ 16
10
ICQI/PMI − 7
17 ≦ ICQI/PMI ≦ 36
20
ICQI/PMI − 17
37 ≦ ICQI/PMI ≦ 76
40
ICQI/PMI − 37
77 ≦ ICQI/PMI ≦ 156
80
ICQI/PMI − 77
157 ≦ ICQI/PMI ≦ 316
160
ICQI/PMI − 157
ICQI/PMI = 317
Reserved
318 ≦ ICQI/PMI ≦ 349
32
ICQI/PMI − 318
350 ≦ ICQI/PMI ≦ 413
64
ICQI/PMI − 350
414 ≦ ICQI/PMI ≦ 541
128
ICQI/PMI − 414
542 ≦ ICQI/PMI ≦ 1023
Reserved

40 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/718,177Filed 28 Sep 2017

Priority

KR 10-2013-01321011 Nov 2013

Published

18 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04B 7/0632
Feedback content: channel quality parameters, e.g. channel quality indicator [CQI]
H04B 7/0634
Feedback content: antenna weights or vector/matrix coefficients
H04B 7/0639
Feedback format: using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
H04B 7/0647
Variable feedback: variable feedback rate

Family

Application14/529,000Continuation · filed 30 Oct 2014

Application15/337,585Continuation · filed 28 Oct 2016

Application15/718,177Continuation

US 10,348,385 B2Related patent

US 2015/0124665 A1Published application

US 2017/0047980 A1Published application

US 9,510,332 B2Related patent

US 9,800,313 B2Related patent

US 2018/0019796 A1This patent

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

Abstract

Claims16

Dependent claims

1-20. (canceled)

A method of receiving at least one of a Channel Quality Indicator (CQI) and a Precoding Matrix Indicator (PMI) by a base station, the method comprising:

establishing a Radio Resource Control (RRC) connection with a user equipment (UE) through a first serving cell, the first serving cell supporting a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode;
transmitting an RRC message for the UE through the first serving cell, the RRC message comprising carrier aggregation (CA) configuration information and a cqi-pmi-ConfigIndex, the CA configuration information comprising information of a second serving cell supporting an FDD mode or a TDD mode, and the first serving cell and the second serving cell being aggregated by a TDD-FDD CA scheme or an FDD-TDD CA scheme for the UE;
periodically receiving, from the UE, at least one of CQI and PMI with respect to the second serving cell, the at least one of CQI and PMI being received through the first serving cell or the second serving cell,
wherein a periodicity (Npd) and an offset (NOFFSET,CQI) for the at least one of CQI and PMI are determined based on the cqi-pmi-ConfigIndex, the cqi-pmi-ConfigIndex is a numerical parameter, the periodicity (Npd) is a periodicity for periodically reporting the at least one of CQI and PMI with respect to the second serving cell, and the offset (NOFFSET,CQI) is an offset for periodically reporting the at least one of CQI and PMI, and
when, the first serving cell supports an FDD mode and the second serving cell supports a TDD mode, the periodicity (Npd) and the offset (NOFFSET,CQI) are determined based on the cqi-pmi-ConfigIndex (ICQI/PMI) shown in Table 1:
TABLE 1
ICQI/PM
Value of Npd
Value of NOFFSET, CQI
0 ≦ ICQI/PMI ≦ 1
2
ICQI/PMI
2 ≦ ICQI/PMI ≦ 6
5
ICQI/PMI − 2
7 ≦ ICQI/PMI ≦ 16
10
ICQI/PMI − 7
17 ≦ ICQI/PMI ≦ 36
20
ICQI/PMI − 17
37 ≦ ICQI/PMI ≦ 76
40
ICQI/PMI − 37
77 ≦ ICQI/PMI ≦ 156
80
ICQI/PMI − 77
157 ≦ ICQI/PMI ≦ 316
160
ICQI/PMI − 157
ICQI/PMI = 317
Reserved
318 ≦ ICQI/PMI ≦ 349
32
ICQI/PMI − 318
350 ≦ ICQI/PMI ≦ 413
64
ICQI/PMI − 350
414 ≦ ICQI/PMI ≦ 541
128
ICQI/PMI − 414
542 ≦ ICQI/PMI ≦ 1023
Reserved

40 more elements

A base station receiving at least one of a Channel Quality Indicator (CQI) and a Precoding Matrix Indicator (PMI) from a User Equipment (UE), the base station comprising:

a transmitting unit configured to an RRC message for the UE through the first serving cell the first serving cell supporting a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode, the RRC message comprising carrier aggregation (CA) configuration information and a cqi-pmi-ConfigIndex, the CA configuration information comprising information of a second serving cell supporting an FDD mode or a TDD mode, and the first serving cell and the second serving cell being aggregated by a TDD-FDD CA scheme or an FDD-TDD CA scheme for the UE;
and
a receiving unit configured to periodically receive, from the UE, at least one of CQI and PMI with respect to the second serving cell, the at least one of CQI and PMI being received through the first serving cell or the second serving cell,
wherein a periodicity (Npd) and an offset (NOFFSET,CQI) for the at least one of CQI and PMI are determined based on the cqi-pmi-ConfigIndex, the cqi-pmi-ConfigIndex is a numerical parameter, the periodicity (Npd) is a periodicity for periodically reporting the at least one of CQI and PMI with respect to the second serving cell, and the offset (NOFFSET,CQI) is an offset for periodically reporting the at least one of CQI and PMI, and
when, the first serving cell supports an FDD mode and the second serving cell supports a TDD mode, the periodicity (Npd) and the offset (NOFFSET,CQI) are determined based on the cqi-pmi-ConfigIndex (ICQI/PMI) shown in Table 3:
TABLE 3
ICQI/PM
Value of Npd
Value of NOFFSET, CQI
0 ≦ ICQI/PMI ≦ 1
2
ICQI/PMI
2 ≦ ICQI/PMI ≦ 6
5
ICQI/PMI − 2
7 ≦ ICQI/PMI ≦ 16
10
ICQI/PMI − 7
17 ≦ ICQI/PMI ≦ 36
20
ICQI/PMI − 17
37 ≦ ICQI/PMI ≦ 76
40
ICQI/PMI − 37
77 ≦ ICQI/PMI ≦ 156
80
ICQI/PMI − 77
157 ≦ ICQI/PMI ≦ 316
160
ICQI/PMI − 157
ICQI/PMI = 317
Reserved
318 ≦ ICQI/PMI ≦ 349
32
ICQI/PMI − 318
350 ≦ ICQI/PMI ≦ 413
64
ICQI/PMI − 350
414 ≦ ICQI/PMI ≦ 541
128
ICQI/PMI − 414
542 ≦ ICQI/PMI ≦ 1023
Reserved

40 more elements

Dependencies are inferred from the claim text.

Method and apparatus of controlling periodic csi reporting

Life of this patent

Abstract

Claims16

Method and apparatus of controlling periodic csi reporting

Life of this patent

Abstract

Claims16