Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system

• US 10,111,257 B2
• Filed: 11/03/2017
• Issued: 10/23/2018
• Est. Priority Date: 05/09/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Soeng Hun, Van Lieshout, Gert Jan, Kim, Sang Bum, Jeong, Kyeong In
• Primary Examiner(s): Foud, Hicham B
• Assistant Examiner(s): Sharma, Gautam
• Application Number:
  US15/803,197
• Publication Number:
  US 20180077734A1
• Time in Patent Office: 354 Days
• Field of Search: None
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 48/00 Access restriction access security to prevent unauthorised access H04W12/08; Network selection; Access point selection
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present disclosure relates to converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT), and may be applied to intelligent services, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method according to disclosed aspects includes receiving a first control message including a first random access response window for a first cell group, receiving a second control message for adding a second cell group, including information on a second random access response window size for the second cell group, transmitting, on a cell of the second cell group, a random access preamble, and monitoring, on the cell of the second cell group, a random access response based on the second random access response window size for the second cell group.

Claims

1. A method by a terminal in a mobile communication system, the method comprising:

receiving a first control message including a first random access response window for a first cell group;

receiving a second control message for adding a cell of a second cell group, the second control message including information on a second random access response window size for the second cell group;

transmitting, on the cell of the second cell group, a random access preamble; and

monitoring, on the cell of the second cell group, a random access response based on the second random access response window size for the second cell group.

2. The method of claim 1, wherein the cell of the second cell group includes a secondary cell (scell) having a physical uplink control channel (PUCCH).

3. The method of claim 1, further comprising:

transmitting, on a cell of the first cell group, a random access preamble; and

monitoring, on the cell of the first cell group, a random access response based on the first random access response window for the first cell group.

4. The method of claim 1, further comprising:

if a random access failure is detected for the second cell group, stopping a transmission of a PUCCH on the cell of the second cell group.

5. A method by a base station in a mobile communication system, the method comprising:

transmitting, to a terminal, a first control message including a first random access response window for a first cell group; and

transmitting, to the terminal, a second control message for adding a cell of a second cell group,

wherein the second control message includes information on a second random access response window size for the second cell group, and

wherein a random access response is monitored on the cell of the second cell group by the terminal based on the second random access response window size for the second cell group.

6. The method of claim 5, wherein the cell of the second cell group includes a secondary cell (scell) having a physical uplink control channel (PUCCH).

7. The method of claim 5, further comprising:

receiving, on the cell of the first cell group, a random access preamble; and

transmitting, on the cell of the first cell group, a random access response based on the first random access response window for the first cell group.

8. A terminal comprising:

a transceiver; and

a controller configured to;

control the transceiver to receive a first control message including a first random access response window for a first cell group associated,

control the transceiver to receive a second control message for adding a cell of a second cell group, the second control message including information on a second random access response window size for the second cell group,

control the transceiver to transmit, on the cell of the second cell group, a random access preamble, and

monitor, on the cell of the second cell group, a random access response based on the second random access response window size for the second cell group.

9. The terminal of claim 8, wherein the cell of the second cell group includes a secondary cell (scell) having a physical uplink control channel (PUCCH).

10. The terminal of claim 8, wherein the controller is further configured to:

control the transceiver to transmit, on a cell of the first cell group, a random access preamble, and

monitor, on the cell of the first cell group, a random access response based on the first random access response window for the first cell group.

11. The terminal of claim 8, wherein the controller is further configured to control stopping a transmission of a PUCCH on the cell of the second cell group if a random access failure is detected for the second cell group.

12. A base station comprising:

a transceiver; and

a controller configured to;

control the transceiver to transmit, to a terminal, a first control message including a first random access response window for a first cell group, and

control the transceiver to transmit, to the terminal, a second control message for adding a cell of a second cell group,

wherein the second control message includes information on a second random access response window size for the second cell group, and

wherein a random access response is monitored on the cell of the second cell group by the terminal based on the second random access response window size for the second cell group.

13. The base station of claim 12, wherein the controller is further configured to:

control the transceiver to receive, on a cell of the first cell group, a random access preamble, and

control the transceiver to transmit, on the cell of the first cell group, a random access response based on the first random access response window for the first cell group.

14. The base station of claim 12, wherein the cell of the second cell group includes a secondary cell (scell) having a physical uplink control channel (PUCCH).