Granted Patent B2

US 10,349,358 · App. 15/802,992 · Granted Jul 9, 2019

Inventors: Dongyoun Seo (Seoul, KR); Suckchel Yang (Seoul, KR); Joonkui Ahn (Seoul, KR)

Assignee: LG ELECTRONICS INC.

H04W52/146H04W52/325H04W72/0413H04W52/48

Abstract

Claims (413)

1. A method for transmitting an uplink (UL) control channel of a user equipment (UE) to which two cells having different UL-downlink (DL) configurations are assigned, the method comprising:

determining, by the UE, a transmit power of the UL control channel; and

transmitting, by the UE, the UL control channel using the transmit power in a subframe n of a first cell,

wherein the transmit power is determined based on a parameter value depending on a maximum value M between N1 and N2,

wherein the N1 is a number of DL subframes associated with the subframe n of the first cell having a first UL-DL configuration and the N2 is a number of DL subframes associated with a subframe n of a second cell having a second UL-DL configuration,

wherein if the maximum value M is 3 or 4, the parameter value is either 2 or 4 based on whether or not a data channel or a control channel indicating a semi-persistent scheduling (SPS) release is received by the UE in a subframe n-k of only one cell between the first cell and the second cell, and

wherein n, M, k, N1, and N2 are integers greater than or equal to 0.

2. The method of claim 1 , wherein a value of k is determined by the following table for each UL-DL configuration and the subframe n of the first cell and the second cell:

UL-DL

Configu-

Subframe n

ration

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,

—

—

—

—

8, 7,

—

—

4, 6

4, 6

3

—

—

7, 6,

6, 5

5, 4

—

—

—

—

—

11

4

—

—

12, 8,

6, 5,

—

—

—

—

—

—

7, 11

4, 7

5

—

—

13, 12,

—

—

—

—

—

—

—

9, 8,

7, 5,

4, 11,

6

6

—

—

7

7

5

—

—

7

7

—.

3. The method of claim 1 , wherein the first cell is a primary cell in which the UE performs an initial connection establishment procedure or a connection re-establishment procedure with respect to a base station.

4. The method of claim 3 , wherein the second cell is a secondary cell which is added to the UE in addition to the primary cell.

5. The method of claim 1 , wherein the first UL-DL configuration and the second UL-DL configuration are two different configurations among UL-DL configurations of the following table:

UL-DL

configu-

Subframe number

ration

0

1

2

3

4

5

6

7

8

9

0

D

S

U

U

U

D

S

U

U

U

1

D

S

U

U

D

D

S

U

U

D

2

D

S

U

D

D

D

S

U

D

D

3

D

S

U

U

U

D

D

D

D

D

4

D

S

U

U

D

D

D

D

D

D

5

D

S

U

D

D

D

D

D

D

D

6

D

S

U

U

U

D

S

U

U

D,

where D denotes a DL subframe, S denotes a special subframe, and U denotes a UL subframe.

6. The method of claim 1 , wherein one of N1 and N2 is 4, and the other one of N1 and N2 is 0, 1, or 2.

7. The method of claim 1 , wherein the first cell and the second cell are time division duplex (TDD) cells.

8. A user equipment (UE), comprising:

a transceiver configured to transmit and receive a radio signal; and

a processor operatively coupled to the transceiver,

wherein the processor is configured to:

determine a transmit power of an uplink (UL) control channel, and

control the transceiver to transmit the UL control channel using the transmit power in a subframe n of a first cell,

wherein the transmit power is determined based on a parameter value depending on a maximum value M between N1 and N2,

wherein the N1 is a number of downlink (DL) subframes associated with the subframe n of the first cell having a first UL-DL configuration and the N2 is a number of DL subframes associated with a subframe n of a second cell having a second UL-DL configuration,

wherein if the maximum value M is 3 or 4, the parameter value is either 2 or 4 based on whether or not a data channel or a control channel indicating a semi-persistent scheduling (SPS) release is received by the UE in a subframe n-k of only one cell between the first cell and the second cell, and

wherein n, M, k, N1, and N2 are integers greater than or equal to 0.

9. The UE of claim 8 , wherein a value of k is determined by the following table for each UL-DL configuration and the subframe n of the first cell and the second cell:

UL-DL

Configu-

Subframe n

ration

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,

—

—

—

—

8, 7,

—

—

4, 6

4, 6

3

—

—

7, 6,

6, 5

5, 4

—

—

—

—

—

11

4

—

—

12, 8,

6, 5,

—

—

—

—

—

—

7, 11

4, 7

5

—

—

13, 12,

—

—

—

—

—

—

—

9, 8,

7, 5,

4, 11,

6

6

—

—

7

7

5

—

—

7

7

—.

10. The UE of claim 8 , wherein the first cell is a primary cell in which the UE performs an initial connection establishment procedure or a connection re-establishment procedure with respect to a base station.

11. The UE of claim 10 , wherein the second cell is a secondary cell which is added to the UE in addition to the primary cell.

12. The UE of claim 8 , wherein the first UL-DL configuration and the second UL-DL configuration are two different configurations among UL-DL configurations of the following table:

UL-DL

configu-

Subframe number

ration

0

1

2

3

4

5

6

7

8

9

0

D

S

U

U

U

D

S

U

U

U

1

D

S

U

U

D

D

S

U

U

D

2

D

S

U

D

D

D

S

U

D

D

3

D

S

U

U

U

D

D

D

D

D

4

D

S

U

U

D

D

D

D

D

D

5

D

S

U

D

D

D

D

D

D

D

6

D

S

U

U

U

D

S

U

U

D,

where D denotes a DL subframe, S denotes a special subframe, and U denotes a UL subframe.

13. The UE of claim 8 , wherein one of N1 and N2 is 4, and the other one of N1 and N2 is 0, 1, or 2.

14. The UE of claim 8 , wherein the first cell and the second cell are time division duplex (TDD) cells.

Continuity (8)