Granted Patent B2

US 12,284,065 · App. 18/379,148 · Granted Apr 22, 2025

Inventors: Taegyun Noh (Daejeon, KR); Jae Young Ahn (Daejeon, KR)

Assignee: Electronics and Telecommunications Research Institute

H04L27/2607H04L1/1893H04L5/0048H04L5/0053H04L5/0055H04W74/085

Abstract

Claims (131)

1. A communication method, comprising:

receiving, at a user equipment (UE), first information;

determining, at the UE, a first value based on the first information;

determining, at the UE, a second value based on the first information;

generating, at the UE, a reference signal by cyclically shifting a sequence based on the first value;

transmitting, at the UE, data;

transmitting, at the UE, the reference signal;

determining, at the UE, a Physical Hybrid ARQ Indicator Channel (PHICH) resource based on the second value; and

receiving, at the UE, Acknowledgement/Negative Acknowledgement (ACK/NACK) for the transmitted data using the PHICH resource,

wherein the first value and the second value are determined according to Table 1:

TABLE 1

first information

first value

second value

000

0

0

001

6

1

010

3

2

011

4

3

100

2

4

101

8

5

110

10

6

111

9

7.

2. The method of claim 1 , wherein determining the PHICH resource according to Table 1 prevents collision of the PHICH resource obtained based on a modulo-four operation.

3. The method of claim 2 , wherein determining the PHICH resource comprises a modulo-four operation.

4. The method of claim 1 , wherein the data is transmitted through a Physical Uplink Shared Channel (PUSCH).

5. The method of claim 1 , wherein the first information is received through a Physical Downlink Control Channel (PDCCH), and the first information comprises three bits.

6. The method of claim 1 , wherein cyclically shifting the sequence comprises a modulo-12 operation.

7. A user equipment (UE), comprising:

a circuitry which is configured to:

cause the UE to receive first information;

determine a first value based on the first information;

determine a second value based on the first information;

generate a reference signal by cyclically shifting a sequence based on the first value;

cause the UE to transmit data;

cause the UE to transmit the reference signal;

determine a Physical Hybrid ARQ Indicator Channel (PHICH) resource based on the second value; and

cause the UE to receive Acknowledgement/Negative Acknowledgement (ACK/NACK) for the transmitted data using the PHICH resource,

wherein the first value and the second value are determined according to Table 2:

TABLE 2

first information

first value

second value

000

0

0

001

6

1

010

3

2

011

4

3

100

2

4

101

8

5

110

10

6

111

9

7.

8. The UE of claim 7 , wherein determining the PHICH resource according to Table 2 prevents collision of the PHICH resource obtained based on a modulo-four operation.

9. The UE of claim 8 , wherein determining the PHICH resource comprises a modulo-four operation.

10. The UE of claim 7 , wherein the data is transmitted through a Physical Uplink Shared Channel (PUSCH).

11. The UE of claim 7 , wherein the first information is received through a Physical Downlink Control Channel (PDCCH), and the first information comprises three bits.

12. The UE of claim 7 , wherein cyclically shifting the sequence comprises a modulo-12 operation.

13. A communication device for a user equipment (UE), the communication device comprising:

a circuitry which is configured to:

cause the UE to receive first information;

determine a first value based on the first information;

determine a second value based on the first information;

generate a reference signal by cyclically shifting a sequence based on the first value;

cause the UE to transmit data;

cause the UE to transmit the reference signal;

determine a Physical Hybrid ARQ Indicator Channel (PHICH) resource based on the second value; and

cause the UE to receive Acknowledgement/Negative Acknowledgement (ACK/NACK) for the transmitted data using the PHICH resource,

wherein the first value and the second value are determined according to Table 3:

TABLE 3

first information

first value

second value

000

0

0

001

6

1

010

3

2

011

4

3

100

2

4

101

8

5

110

10

6

111

9

7.

14. The communication device of claim 13 , wherein determining the PHICH resource according to Table 3 prevents collision of the PHICH resource obtained based on a modulo-four operation.

15. The communication device of claim 14 , wherein determining the PHICH resource comprises a modulo-four operation.

16. The communication device of claim 13 , wherein the data is transmitted through a Physical Uplink Shared Channel (PUSCH).

17. The communication device of claim 13 , wherein the first information is received through a Physical Downlink Control Channel (PDCCH), and the first information comprises three bits.

18. The communication device of claim 13 , wherein cyclically shifting the sequence comprises a modulo-12 operation.

Priority Claims (4)

Continuity (8)

References Cited (132)