# US 10,321,419 B2 · Method and apparatus for transmitting data using a multi-carrier in a mobile communication system

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- Number: US 10,321,419 B2
- Document ID: US10321419B2
- Status: Granted
- Kind: B2
- Application number: 14/287,979
- Filed: 2014-05-27
- Published: 2014-09-25
- Granted: 2019-06-11
- Earliest claimed: 2011-08-10
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Soeng Hun Kim; Gert-Jan Van Lieshout; Sang Bum Kim
- Web page: https://patentgrep.com/patent/US10321419B2

## CPC

- H04W 56/0005: {synchronizing of arrival of multiple uplinks}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04W 52/02: Power saving arrangements
- H04W 56/0015: {one node acting as a reference for the others}
- H04W 56/0045: {compensating for timing error by altering transmission time}
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

The present invention relates to a method and apparatus for transmitting data using a multi-carrier in a mobile communication system. The method of transmitting data in user equipment of a wireless communication system using a carrier aggregation technique according to an embodiment of the present invention includes setting secondary cells included in an S-TAG (Secondary-Timing Advance Group) configured of only secondary cells (SCells), deactivating a downlink timing reference cell in the S-TAG; determining whether other activated secondary cells exist besides the deactivated downlink timing reference cell in the S-TAG, and when the other activated secondary cells exist in the S-TAG, setting one of the other activated secondary cells as a new downlink timing reference cell. According to the present invention, uplink transmission speed can be increased in the user equipment and user QoS can be improved by transmitting data using one or more uplink carriers in the terminal.

## Claims

### Claim 1

A method for performing discontinuous reception (DRX) by a terminal in a communication system, the method comprising:
receiving, from a base station, DRX related information including a timer value related to on-duration, a first DRX cycle value and a second DRX cycle value;
receiving, from the base station, control information with a zero bit payload, the control information including a logical channel ID (LCID), the LCID identifying a type of the control information;
identifying the type of the control information based on the LCID;
configuring a first DRX with the first DRX cycle value if the control information is information related to the first DRX; and
configuring a second DRX with the second DRX cycle value if the control information is information related to the second DRX,
wherein the first DRX and the second DRX are configured with the timer value related to on-duration included in the DRX related information.

### Claim 2 (depends on 1)

The method of claim 1, wherein the DRX related information further comprises a timer value related to DRX inactivity and a timer value related to a DRX short cycle.

### Claim 3 (depends on 1)

The method of claim 1, wherein the DRX related information is received via a RRC signaling.

### Claim 4 (depends on 1)

The method of claim 1,
wherein the first DRX cycle value is associated with a long DRX cycle, and
wherein the second DRX cycle value is associated with a short DRX cycle.

### Claim 5 (depends on 2)

The method of claim 2, further comprising:
stopping, if the control information is the information related to the first DRX, a timer related to on-duration, a timer related to DRX inactivity and a timer related to the DRX short cycle.

### Claim 6 (depends on 2)

The method of claim 2, further comprising:
stopping, if the control information is the information related to the second DRX, a timer related to on-duration and a timer related to DRX inactivity.

### Claim 7

A method for performing discontinuous reception (DRX) of a base station in a communication system, the method comprising:
transmitting, to a terminal, DRX related information including a timer value related to on-duration, a first DRX cycle value and a second DRX cycle value; and
transmitting, to the terminal, control information with a zero bit payload, the control information including a logical channel ID (LCID), the LCID identifying a type of the control information,
wherein a first DRX is configured by the terminal with the first DRX cycle value if the control information is information related to the first DRX,
wherein a second DRX is configured by the terminal with the second DRX cycle value if the control information is information related to the second DRX, and
wherein the first DRX and the second DRX are configured by the terminal with the timer value related to on-duration included in the DRX related information.

### Claim 8 (depends on 7)

The method of claim 7, wherein the DRX related information further comprises a timer value related to DRX inactivity and a timer value related to a DRX short cycle.

### Claim 9 (depends on 7)

The method of claim 7, wherein the DRX related information is transmitted via a RRC signaling.

### Claim 10 (depends on 7)

The method of claim 7,
wherein the first DRX cycle value is associated with a long DRX cycle, and
wherein the second DRX cycle value is associated with a short DRX cycle.

### Claim 11 (depends on 8)

The method of claim 8, wherein a timer related to on-duration, a timer related to DRX inactivity and a timer related to the DRX short cycle are stopped by the terminal if the control information is the information related to the first DRX.

### Claim 12 (depends on 8)

The method of claim 8, wherein a timer related to on-duration and a timer related to DRX inactivity are stopped by the terminal if the control information is the information related to the second DRX.

### Claim 13

A terminal for performing discontinuous reception (DRX) in a communication system, the terminal comprising:
a transceiver configured to transmit and receive signals; and
a controller coupled with the transceiver and configured to:
receive, from a base station, DRX related information including a timer value related to on-duration, a first DRX cycle value and a second DRX cycle value,
receive, from the base station, control information with a zero bit payload, the control information including a logical channel ID (LCD), the LCID identifying a type of the control information,
identify the type of the control information based on the LCD,
configure a first DRX with the first DRX cycle value if the control information is information related to the first DRX, and
configure a second DRX with the second DRX cycle value if the control information is information related to the second DRX,
wherein the first DRX and the second DRX are configured with the timer value related to on-duration included in the DRX related information.

### Claim 14 (depends on 13)

The terminal of claim 13, wherein the DRX related information further comprises a timer value related to DRX inactivity and a timer value related to a DRX short cycle.

### Claim 15 (depends on 13)

The terminal of claim 13, wherein the DRX related information is received via a RRC signaling.

### Claim 16 (depends on 13)

The terminal of claim 13, wherein the first DRX cycle value is associated with a long DRX cycle and the second DRX cycle value is associated with a short DRX cycle.

### Claim 17 (depends on 14)

The terminal of claim 14, wherein the controller is further configured to stop a timer related to on-duration, a timer related to DRX inactivity and a timer related to the DRX short cycle if the control information is information related to the first DRX.

### Claim 18 (depends on 13)

The terminal of claim 13, wherein the controller is further configured to stop a timer related to on-duration and a timer related to DRX inactivity if the control information is the information related to the first DRX.

### Claim 19

A base station for supporting discontinuous reception (DRX) in a communication system, the base station comprising:
a transceiver configured to transmit and receive signals; and
a controller configured to:
transmit, to a terminal, DRX related information including a timer value related to on-duration, a first DRX cycle value and a second DRX cycle value, and
transmit, to the terminal, control information with a zero bit payload, the control information including a logical channel ID (LCID), the LCID identifying a type of the control information,
wherein a first DRX is configured by the terminal with the first DRX cycle value if the control information is information related to the first DRX,
wherein a second DRX is configured by the terminal with the second DRX cycle value if the control information is information related to the second DRX, and
wherein the first DRX and the second DRX are configured by the terminal with the timer value related to on-duration included in the DRX related information.

### Claim 20 (depends on 19)

The base station of claim 19, wherein the DRX related information further comprises a timer value related to DRX inactivity and a timer value related to a DRX short cycle.

### Claim 21 (depends on 19)

The base station of claim 19, wherein the DRX related information is transmitted via a RRC signaling.

### Claim 22 (depends on 19)

The base station of claim 19, wherein the first DRX cycle value is associated with a long DRX cycle and the second DRX cycle value is associated with a short DRX cycle.

### Claim 23 (depends on 20)

The base station of claim 20, wherein a timer related to on-duration, a timer related to DRX inactivity and a timer related to the DRX short cycle are stopped by the terminal if the control information is the information related to the first DRX.

### Claim 24 (depends on 20)

The base station of claim 20, wherein a timer related to on-duration and a timer related to DRX inactivity are stopped by the terminal if the control information is the information related to the second DRX.