METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA USING PLURALITY OF CARRIERS IN MOBILE COMMUNICATION SYSTEM

• US 20190014601A1
• Filed: 09/14/2018
• Published: 01/10/2019
• 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
• Granted Patent: US 10,887,919 B2
• Time in Patent Office: Days
• 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 wireless communication system, the method comprising:

identifying that a number of transmissions of a random access preamble reaches a pre-defined condition;

performing a first procedure if the preamble is transmitted on a first primary cell of a master cell group (MCG); and

performing a second procedure if the preamble is transmitted on a second primary cell of a secondary cell group (SCG),

wherein the second procedure is different from the first procedure.

2. The method of claim 1, wherein performing of the first procedure comprises:

initiating a radio resource control (RRC) connection re-establishment procedure.

3. The method of claim 1, wherein performing of the second procedure comprises:

releasing a physical uplink control channel (PUCCH) resource for the second primary cell of the SCG.

4. The method of claim 3, wherein performing of the second procedure further comprises:

transmitting a first message including information indicating an RRC connection failure associated with a random access on the second primary cell of the SCG.

5. The method of claim 4, wherein the first message is transmitted on the first primary cell of the MCG.

6. The method of claim 2, wherein initiating the RRC connection re-establishment procedure comprises:

transmitting a second message for request a RRC connection re-establishment.

7. The method of claim 1, wherein the pre-defined condition is associated at least one of a first maximum transmission number for the first primary cell of the MCG or a second maximum transmission number for the second primary cell of the SCG.

8. A terminal in a wireless communication system, the terminal comprising:

a transceiver; and

a controller coupled with the transceiver and configured to control to;

identify that a number of transmissions of a random access preamble reaches a pre-defined condition,

perform a first procedure if the preamble is transmitted on a first primary cell of a master cell group (MCG), and

perform a second procedure if the preamble is transmitted on a second primary cell of a secondary cell group (SCG),

wherein the second procedure is different from the first procedure.

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

initiate a radio resource control (RRC) connection re-establishment procedure as the first procedure.

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

release a physical uplink control channel (PUCCH) resource for the second primary cell of the SCG as the second procedure.

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

transmit a first message including information indicating an RRC connection failure associated with a random access on the second primary cell of the SCG as the second procedure.

12. The terminal of claim 11, wherein the first message is transmitted on the first primary cell of the MCG.

13. The terminal of claim 9, wherein the controller is configured to:

transmit a second message for request a RRC connection re-establishment for the RRC connection re-establishment procedure.

14. The terminal of claim 8, wherein the pre-defined condition is associated at least one of a first maximum transmission number for the first primary cell of the MCG or a second maximum transmission number for the second primary cell of the SCG.