IP Library › Granted Patent US 9,270,365
Granted Patent B2
US 9,270,365 · App. 14/513,449 · Granted Feb 23, 2016

User equipment, PDSCH A/N transmitting method thereof, transmission/reception point, and PDSCH A/N receiving method thereof

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Quick Facts
Patent No.
US 9,270,365
App. No.
14/513,449
Granted
Feb 23, 2016
Kind
B2
Abstract

The present invention relates to a system that includes a transmission/reception point and a user equipment having different configurations in inter-band and performs a TDD (Time Division Duplex) method.

Claims (1020)

1. A user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the user equipment comprising:

a receiver to receive a physical downlink shared channel (PDSCH) transmission on the SCell;

a controller to select a reference TDD configuration for the SCell; and

a transmitter to transmit a first acknowledgement/negative acknowledgement (A/N), the first A/N being responsive to the PDSCH transmission on the SCell, wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 1-1 below:

TABLE 1-1

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

1

2

3

4

5

6

UL-DL configuration

1

2

4

5

2

5

3

4

5

4

5

5

6

1

2

3

4

5

where each reference TDD configuration in Table 1 indicates downlink association set indexes (K: {k 0 , k 1 , . . . k M −1 }) for a subframe ‘n’ as defined in Table 2below:

TABLE 1-2

Downlink association set index K: {k 0 , k 1 , . . . k M − 1 } for TDD

UL-DL

Subframe ‘n’

Configuration

0

1

2

3

0

—

—

6

—

1

—

—

7, 6

4

2

—

—

8, 7, 4, 6

—

3

—

—

7, 6, 11

6, 5

4

—

—

12, 8, 7, 11

6, 5, 4, 7

5

—

—

13, 12, 9, 8, 7, 5, 4, 11, 6

—

6

—

—

7

7

UL-DL

Subframe ‘n’

Configuration

4

5

6

7

8

9

0

4

—

—

6

—

4

1

—

—

—

7, 6

4

—

2

—

—

—

8, 7, 4, 6

—

—

3

5, 4

—

—

—

—

—

4

—

—

—

—

—

—

5

—

—

—

—

—

—

6

5

—

—

7

7

—

where the first A/N responsive to the PDSCH transmitted in a subframe (n−k i ) (0≦i≦M−1) is transmitted in the subframe ‘n’,

wherein n, k, i, and M are integers.

2. The user equipment of claim 1 , wherein the transmitter transmits a second A/N in an uplink subframe determined by a reference TDD configuration for the PCell, the second A/N being responsive to a PDSCH transmission on the PCell,

wherein the reference TDD configuration for the PCell is the PCell TDD UL-DL configuration.

3. The user equipment of claim 1 , wherein the reference TDD configuration for the SCell is further determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 1-3 below:

TABLE 1-3

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

UL-DL configuration

1

1

4

1

2

2

2

5

5

2

3

3

4

5

3

4

4

4

5

4

4

5

5

5

5

5

5

5

6

6

.

4. A method for transmitting acknowledgement/negative acknowledgement (A/N) by a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

receiving a physical downlink shared channel (PDSCH) transmission on the SCell;

selecting a reference TDD configuration for the SCell; and

transmitting a first A/N, the first A/N being responsive to the PDSCH transmission on the SCell,

wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 4-1 below:

TABLE 4-1

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

1

2

3

4

5

6

UL-DL configuration

1

2

4

5

2

5

3

4

5

4

5

5

6

1

2

3

4

5

where each reference TDD configuration in Table 1indicates downlink association set indexes (K: {k 0 , k 1 , . . . k M−1 }) for a subframe ‘n’ as defined in Table 4-2 below:

TABLE 4-2

Downlink association set index K: {k 0 , k 1 , . . . k M − 1 } for TDD

UL-DL

Subframe ‘n’

Configuration

0

1

2

3

4

5

6

7

8

9

0

—

—

6

—

4

—

—

6

—

4

1

—

—

7, 6

4

—

—

—

7, 6

4

—

2

—

—

8, 7, 4, 6

—

—

—

—

8, 7, 4, 6

—

—

3

—

—

7, 6, 11

6, 5

5, 4

—

—

—

—

—

4

—

—

12, 8, 7, 11

6, 5, 4, 7

—

—

—

—

—

—

5

—

—

13, 12, 9, 8, 7, 5, 4, 11, 6

—

—

—

—

—

—

—

6

—

—

7

7

5

—

—

7

7

—

where the first A/N responsive to the PDSCH transmitted in a subframe (n−k i ) (0≦i≦M−1) is transmitted in the subframe ‘n’,

wherein n, k, i, and M are integers.

5. The method of claim 4 , further comprising:

transmitting a second A/N in an uplink subframe determined by a reference TDD configuration for the PCell, the second A/N being responsive to a PDSCH transmission on the PCell,

wherein the reference TDD configuration for the PCell is the PCell TDD UL-DL configuration.

6. The method of claim 4 , wherein the reference TDD configuration for the SCell is further determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 4-3 below:

TABLE 4-3

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

UL-DL configuration

1

1

4

1

2

2

2

5

5

2

3

3

4

5

3

4

4

4

5

4

4

5

5

5

5

5

5

5

6

6.

7. A transmission/reception point that communicates with a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the transmission/reception point comprising:

a controller to select a reference TDD configuration for the SCell; and

a receiver to receive a first acknowledgement/negative acknowledgement (A/N) from the user equipment, the first A/N being responsive to a physical downlink shared channel (PDSCH) transmission on the SCell,

wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 7-1 below:

TABLE 7-1

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

1

2

3

4

5

6

UL-DL configuration

1

2

4

5

2

5

3

4

5

4

5

5

6

1

2

3

4

5

where each reference TDD configuration in Table 7-1 indicates downlink association set indexes (K: {k 0 , k 1 , . . . k M−1 }) for a subframe ‘n’ as defined in Table 7-2 below:

TABLE 7-2

Downlink association set index K: {k 0 , k 1 , . . . k M − 1 } for TDD

UL-DL

Subframe ‘n’

Configuration

0

1

2

3

4

5

6

7

8

9

0

—

—

6

—

4

—

—

6

—

4

1

—

—

7, 6

4

—

—

—

7, 6

4

—

2

—

—

8, 7, 4, 6

—

—

—

—

8, 7, 4, 6

—

—

3

—

—

7, 6, 11

6, 5

5, 4

—

—

—

—

—

4

—

—

12, 8, 7, 11

6, 5, 4, 7

—

—

—

—

—

—

5

—

—

13, 12, 9, 8, 7, 5, 4, 11, 6

—

—

—

—

—

—

—

6

—

—

7

7

5

—

—

7

7

—

where the first A/N responsive to the PDSCH transmitted in a subframe (n−k i ) (0≦i≦M−1) is transmitted in the subframe ‘n’,

wherein n, k, i, and M are integers.

8. The transmission/reception point of claim 7 , wherein the receiver receives a second A/N from the user equipment in an uplink subframe determined by a reference TDD configuration for the PCell, the second A/N being responsive to a PDSCH transmission on the PCell,

wherein the reference TDD configuration for the PCell is the PCell TDD UL-DL configuration.

9. The transmission/reception point of claim 7 , wherein the reference TDD configuration for the SCell is further determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 7-3 below:

TABLE 7-3

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

UL-DL configuration

1

1

4

1

2

2

2

5

5

2

3

3

4

5

3

4

4

4

5

4

4

5

5

5

5

5

5

5

6

6.

10. A method for receiving acknowledgement/negative acknowledgement (A/N) by a transmission/reception point that communicates with a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

selecting a reference TDD configuration for the SCell; and

receiving a first A/N from the user equipment, the first A/N being responsive to a physical downlink shared channel (PDSCH) transmission on the SCell,

wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 10-1 below:

TABLE 10-1

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

1

2

3

4

5

6

UL-DL configuration

1

2

4

5

2

5

3

4

5

4

5

5

6

1

2

3

4

5

where each reference TDD configuration in Table 1indicates downlink association set indexes (K: {k 0 , k 1 , . . . k M −1 }) for a subframe ‘n’ as defined in Table 10-2below:

TABLE 10-2

Downlink association set index K: {k 0 , k 1 , . . . k M − 1 } for TDD

UL-DL

Subframe ‘n’

Configuration

0

1

2

3

4

5

6

7

8

9

0

—

—

6

—

4

—

—

6

—

4

1

—

—

7, 6

4

—

—

—

7, 6

4

—

2

—

—

8, 7, 4, 6

—

—

—

—

8, 7, 4, 6

—

—

3

—

—

7, 6, 11

6, 5

5, 4

—

—

—

—

—

4

—

—

12, 8, 7, 11

6, 5, 4, 7

—

—

—

—

—

—

5

—

—

13, 12, 9, 8, 7, 5, 4, 11, 6

—

—

—

—

—

—

—

6

—

—

7

7

5

—

—

7

7

—

where the first A/N responsive to the PDSCH transmitted in a subframe (n−k i ) (0≦i≦M−1) is transmitted in the subframe ‘n’,

wherein n, k, i, and M are integers.

11. The method of claim 10 , further comprising:

receiving a second A/N from the user equipment in an uplink subframe determined by a reference TDD configuration for the PCell, the second A/N being responsive to a PDSCH transmission on the PCell,

wherein the reference TDD configuration for the PCell is the PCell TDD UL-DL configuration.

12. The method of claim 10 , wherein the reference TDD configuration for the SCell is further determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 10-3 below:

TABLE 10-3

Reference TDD configuration for SCell determined based on

a PCell TDD UL-DL configuration and SCell TDD UL-DL

configuration pair

PCell TDD UL-DL configuration

Reference TDD configuration

0

1

2

3

4

5

6

SCell TDD

0

UL-DL configuration

1

1

4

1

2

2

2

5

5

2

3

3

4

5

3

4

4

4

5

4

4

5

5

5

5

5

5

5

6

6.

13. A method for transmitting acknowledgement/negative acknowledgement (A/N) by a user equipment configured with at least two serving cells, the at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), and the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

receiving a physical downlink shared channel (PDSCH) transmission on the SCell in a subframe ‘n−k i ’;

determining the interval ‘k i ’ between the reception of the PDSCH transmission on the SCell and a responsive A/N transmission, the interval being determined based on a reference TDD configuration for the SCell; and

transmitting the A/N responsive to the PDSCH transmission on the SCell in a subframe ‘n’ according to the interval,

wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair,

wherein the PCell TDD UL-DL configuration and the SCell TDD UL-DL configuration are selected from among TDD UL-DL configurations defined in Table 13-1 below:

TABLE 13-1

TDD UL-DL configurations

Downlink-

to-

Uplink-

Uplink

downlink

Switch-

config-

point

Subframe number

uration

periodicity

0

1

2

3

4

5

6

7

8

9

0

5 ms

D

S

U

U

U

D

S

U

U

U

1

5 ms

D

S

U

U

D

D

S

U

U

D

2

5 ms

D

S

U

D

D

D

S

U

D

D

3

10 ms 

D

S

U

U

U

D

D

D

D

D

4

10 ms 

D

S

U

U

D

D

D

D

D

D

5

10 ms 

D

S

U

D

D

D

D

D

D

D

6

5 ms

D

S

U

U

U

D

S

U

U

D

where D denotes a downlink subframe, S denotes a special subframe, and U denotes an uplink subframe,

wherein the reference TDD configuration is determined according to Table 13-2 below:

TABLE 13-2

Reference TDD configuration for SCell determined

based on a PCell TDD UL-DL configuration and

SCell TDD UL-DL configuration pair

Reference TDD

(PCell TDD UL-DL configuration, SCell TDD

configuration

UL-DL configuration)

1

(1, 0), (1, 6)

2

(2, 0), (2, 1), (2, 6)

3

(3, 0), (3, 6)

4

(4, 0), (4, 1), (4, 3), (4, 6)

5

(5, 0), (5, 1), (5, 2), (5, 3), (5, 4), (5, 6)

6

(6, 0),

and

wherein n, k, and i are integers.

14. The method of claim 13 , wherein the interval ‘k i ’εK, and K: {k 0 , k 1 , k M−1 } for the subframe ‘n’ is defined in Table 13-3 below:

TABLE 13-3

Downlink association set index K: {k 0 , k 1 , . . . K M − 1 } for TDD

UL-DL

Subframe ‘n’

Configuration

0

1

2

3

4

5

6

7

8

9

0

—

—

6

—

4

—

—

6

—

4

1

—

—

7, 6

4

—

—

—

7, 6

4

—

2

—

—

8, 7, 4, 6

—

—

—

—

8, 7, 4, 6

—

—

3

—

—

7, 6, 11

6, 5

5, 4

—

—

—

—

—

4

—

—

12, 8, 7, 11

6, 5, 4, 7

—

—

—

—

—

—

5

—

—

13, 12, 9, 8, 7, 5, 4, 11, 6

—

—

—

—

—

—

—

6

—

—

7

7

5

—

—

7

7

—

where the A/N responsive to the PDSCH transmitted in the subframe (n−k i ) (0 ≦i≦M−1) is transmitted in the subframe ‘n’,

wherein K is a set of integers and M is an integer.

15. The method of claim 14 , wherein the reference TDD configuration is determined according to Table 13-4 below:

TABLE 13-4

Reference TDD configuration for SCell determined

based on a PCell TDD UL-DL configuration and

SCell TDD UL-DL configuration pair

Reference TDD

(PCell TDD UL-DL configuration, SCell TDD

configuration

UL-DL configuration)

1

(0, 1), (6, 1)

2

(0, 2), (1, 2), (6, 2)

3

(0, 3), (6, 3)

4

(0, 4), (1, 4), (3, 4), (6, 4), (3, 1), (1, 3)

5

(0, 5), (1, 5), (2, 5), (3, 5), (4, 5), (6, 5), (3, 2),

(4, 2), (2, 3), (2, 4)

6

(0, 6).

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2020
From: GOLDPEAK INNOVATIONS INC
To: PANTECH CORPORATION
Reel/Frame 052657/0066 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2017
From: PANTECH INC
To: GOLDPEAK INNOVATIONS INC
Reel/Frame 042098/0653 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2016
From: PANTECH CO., LTD.
To: PANTECH INC.
Reel/Frame 039428/0268 →