US 11,888,558 B2Granted

Method and apparatus for uplink signal transmission based on codebook in a wireless communication system

AssigneeLG Electronics Inc.

InventorsHaewook Park, Jonghyun Park

Life of this patent

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Abstract

A method for transmitting an uplink signal based on a codebook by a UE in a wireless communication system includes: receiving, from a base station, downlink control information (DCI) for determining a precoding matrix applied to transmission of the uplink signal; determining the precoding matrix applied to the transmission of the uplink signal from a codebook subset related to the transmission of the uplink signal based on the DCI; and transmitting, to the base station, the uplink signal based on the determined precoding matrix, I which based on that a difference between phase values applied to antenna ports for the transmission of the uplink signal is maintained in some antenna ports among all antenna port pairs, the codebook subset includes at least one specific precoding matrix applying different phase values to antenna ports included in all or some of the some antenna ports.

Claims13

Dependent claims

A method of transmitting a physical uplink shared channel (PUSCH) based on a codebook by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, from a base station, downlink control information (DCI) for information related to a precoding matrix;
and
transmitting, to the base station, the PUSCH based on the precoding matrix determined based on the DCI,
wherein based on that a codebook subset is based on a codebook subset parameter configured to partialAndNonCoherent, the codebook subset includes at least one specific precoding matrix comprising non zero values for all antenna ports,
wherein the at least one specific precoding matrix is related to rank 1 uplink transmission using 4 antenna ports,
wherein the codebook includes a first codebook for a rank 1 using 4 antenna ports,
wherein the first codebook is based on one of the following tables,
TPMI
W (ordered from left to right in increasing
index
order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
-
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
-
1
]
1
2
⁡
[
1
-
1
1
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
-
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
-
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
1
]
—
—
—
—
TPMI
W (ordered from left to right in increasing
index
order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
-
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
-
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
1
]
1
2
⁡
[
1
-
1
1
-
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
-
1
]
—
—
—
—
wherein the at least one specific precoding matrix is a precoding matrix whose the TPMI index is 12 to 15, among precoding matrices included in the first codebook, and
wherein the codebook subset further includes at least one precoding matrix (i) related to the rank 1 using the 4 antenna ports and (ii) including precoding matrices whose the TPMI index are 0 to 11, among the precoding matrices included in the first codebook.

590 more elements

A user equipment (UE) configured to transmit a physical uplink shared channel (PUSCH) based on a codebook in a wireless communication system, the UE comprising:

a transmitter;
a receiver;
and
a processor functionally connected to the transmitter and the receiver,
wherein the processor is configured to control the UE to:
receive, from a base station, downlink control information (DCI) for information related to a precoding matrix;
and
transmit, to the base station, the PUSCH based on the precoding matrix determined based on the DCI,
wherein based on that a codebook subset is based on a codebook subset parameter configured to partialAndNonCoherent, the codebook subset includes at least one specific precoding matrix comprising non zero values for all antenna ports,
wherein the at least one specific precoding matrix is related to rank 1 uplink transmission using 4 antenna ports,
wherein the codebook includes a first codebook for a rank 1 using 4 antenna ports,
wherein the first codebook is based on one of the following tables,
TPMI index
W (ordered from left to right in increasing order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
-
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
-
1
]
1
2
⁡
[
1
-
1
1
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
-
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
-
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
1
]
—
—
—
—
TPMI index
W (ordered from left to right in increasing order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
-
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
-
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
1
]
1
2
⁡
[
1
-
1
1
-
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
-
1
]
—
—
—
—
wherein the at least one specific precoding matrix is a precoding matrix whose the TPMI index is 12 to 15, among precoding matrices included in the first codebook, and
wherein the codebook subset further includes at least one precoding matrix (i) related to the rank 1 using the 4 antenna ports and (ii) including precoding matrices whose the TPMI index are 0 to 11, among the precoding matrices included in the first codebook.

591 more elements

A non-transitory computer readable medium (CRM) storing one or more instructions,

wherein one or more instructions executable by one or more processors control a user equipment (UE) to:
receive, from a base station, downlink control information (DCI) for information related to a precoding matrix;
and
transmit, to the base station, the PUSCH based on the precoding matrix determined based on the DCI,
wherein based on that a codebook subset is based on a codebook subset parameter configured to partialAndNonCoherent, the codebook subset includes at least one specific precoding matrix comprising non zero values for all antenna ports,
wherein the at least one specific precoding matrix is related to rank 1 uplink transmission using 4 antenna ports,
wherein the codebook includes a first codebook for a rank 1 using 4 antenna ports,
wherein the first codebook is based on one of the following tables,
TPMI index
W (ordered from left to right in increasing order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
-
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
-
1
]
1
2
⁡
[
1
-
1
1
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
-
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
-
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
1
]
—
—
—
—
TPMI index
W (ordered from left to right in increasing order of TPMI index)
0-7
1
2
⁡
[
1
0
0
0
]
1
2
⁡
[
0
1
0
0
]
1
2
⁡
[
0
0
1
0
]
1
2
⁡
[
0
0
0
1
]
1
2
⁡
[
1
0
1
0
]
1
2
⁡
[
1
0
-
1
0
]
1
2
⁡
[
1
0
j
0
]
1
2
⁡
[
1
0
-
j
0
]
8-15
1
2
⁡
[
0
1
0
1
]
1
2
⁡
[
0
1
0
-
1
]
1
2
⁡
[
0
1
0
j
]
1
2
⁡
[
0
1
0
-
j
]
1
2
⁡
[
1
1
1
1
]
1
2
⁡
[
1
1
j
j
]
1
2
⁡
[
1
1
-
1
-
1
]
1
2
⁡
[
1
1
-
j
-
j
]
16-23
1
2
⁡
[
1
j
1
j
]
1
2
⁡
[
1
j
j
-
1
]
1
2
⁡
[
1
j
-
1
-
j
]
1
2
⁡
[
1
j
-
j
1
]
1
2
⁡
[
1
-
1
1
-
1
]
1
2
⁡
[
1
-
1
j
-
j
]
1
2
⁡
[
1
-
1
-
1
1
]
1
2
⁡
[
1
-
1
-
j
j
]
24-27
1
2
⁡
[
1
-
j
1
-
j
]
1
2
⁡
[
1
-
j
j
1
]
1
2
⁡
[
1
-
j
-
1
j
]
1
2
⁡
[
1
-
j
-
j
-
1
]
—
—
—
—
wherein the at least one specific precoding matrix is a precoding matrix whose the TPMI index is 12 to 15, among precoding matrices included in the first codebook, and
wherein the codebook subset further includes at least one precoding matrix (i) related to the rank 1 using the 4 antenna ports and (ii) including precoding matrices whose the TPMI index are 0 to 11, among the precoding matrices included in the first codebook.

587 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/374,567Filed 13 Jul 2021 · continuation
Priority: KR 10-2019-010066216 Aug 2019
Published: US 2021/0050891 A118 Nov 2021
Granted: 30 Jan 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04B 7/0481
Special codebook structures directed to feedback optimisation: using subset selection of codebooks
H04B 7/0447
Using multiple eigenmodes: utilizing uniform distribution
H04B 7/0626
Feedback content: channel coefficients, e.g. channel state information [CSI]
H04B 7/0639
Feedback format: using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection

Family

Application16/995,376Parent of this continuation · filed 17 Aug 2020
US 2021/0359734 A1Pre-grant publication · published 18 Nov 2021
US 11,101,856 B2Parent of this continuation
US 2021/0050891 A1Published application
US 11,888,558 B2This patent

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