METHOD AND APPARATUS FOR COMMUNICATION IN WIRELESS MOBILE COMMUNICATION SYSTEM

• US 20180213452A1
• Filed: 01/16/2018
• Published: 07/26/2018
• Est. Priority Date: 01/16/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Donggun, Kim, Soenghun, Kim, Sangbum, Sayenko, Alexander, Jin, Seungri
• Granted Patent: US 10,863,394 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/0033 with transfer of context information
• CPC Class Codes: H04W 36/0038 of security context information
• CPC Class Codes: H04W 36/0055 Transmission or use of information for re-establishing the radio link
• CPC Class Codes: H04W 36/0072 of resource information of target access point
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present disclosure relates to a communication method and system for converging a 5^th-Generation (5G) communication system for supporting higher data rates beyond a 4^th-Generation (4G) system with a technology for IoT, and may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, e.g., smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

A method by a terminal in a wireless communication system is provided, and includes receiving, from a base station, a paging message for switching a mode of the terminal in an RRC inactive mode to an RRC idle mode, transmitting an RRC message to the base station based on the paging message, receiving an RRC-connection release message (CRR) from the base station, and transitioning from the RRC inactive mode to the RRC idle mode based on the RRC-CRR.

Claims

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

receiving, from a base station, a paging message for switching a mode of the terminal in a radio resource control (RRC) inactive mode to an RRC idle mode;

transmitting an RRC message to the base station based on reception of the paging message;

receiving an RRC connection release message from the base station; and

transitioning from the RRC inactive mode to the RRC idle mode based on the RRC connection release message.

2. The method of claim 1, wherein if the base station stores a context of the terminal and the paging message is triggered by the base station, the paging message includes an identification identifying the terminal in the RRC inactive mode.

3. The method of claim 2, wherein the RRC message is an RRC connection resume request message.

4. The method of claim 1, wherein if the paging message is transmitted from a core network node, the paging message includes at least one of a system architecture evolution-temporary mobile subscriber identity (S-TMSI) and an international mobile subscriber identity (IMSI).

5. The method of claim 4, wherein the RRC message is an RRC connection request message.

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

a transceiver configured to transmit and receive signals; and

a controller configured to;

receive, from a base station, a paging message for switching a mode of the terminal in a radio resource control (RRC) inactive mode to an RRC idle mode,

transmit an RRC message to the base station based on reception of the paging message, receive an RRC connection release message from the base station, and

transition from the RRC inactive mode to the RRC idle mode based on the RRC connection release message.

7. The terminal of claim 6, wherein if the base station stores a context of the terminal and the paging message is triggered by the base station, the paging message includes an identification identifying the terminal in the RRC inactive mode.

8. The terminal of claim 7, wherein the RRC message is an RRC connection resume request message.

9. The terminal of claim 6, wherein if the paging message is transmitted from a core network node, the paging message includes at least one of a system architecture evolution-temporary mobile subscriber identity (S-TMSI) and an international mobile subscriber identity (IMSI).

10. The terminal of claim 9, wherein the RRC message is an RRC connection request message.

11. A method by a base station in a wireless communication system, the method comprising:

transmitting, to a terminal, a paging message for switching a mode of the terminal in a radio resource control (RRC) inactive mode to an RRC idle mode;

receiving an RRC message from the terminal; and

transmitting an RRC connection release message to the terminal based on the RRC message,

wherein the RRC connection release message indicates transitioning from the RRC inactive mode to the RRC idle mode.

12. The method of claim 11, wherein if the base station stores a context of the terminal and the paging message is triggered by the base station, the paging message includes an identification identifying the terminal in the RRC inactive mode.

13. The method of claim 12, wherein the RRC message is an RRC connection resume request message.

14. The method of claim 11, wherein if the paging message is transmitted from a core network node, the paging message includes at least one of a system architecture evolution-temporary mobile subscriber identity (S-TMSI) and an international mobile subscriber identity (IMSI).

15. The method of claim 14, wherein the RRC message is an RRC connection request message.

16. A base station in a wireless communication system, the base station comprising:

a transceiver configured to transmit and receive signals; and

a controller configured to;

transmit, to a terminal, a paging message for switching a mode of the terminal in a radio resource control (RRC) inactive mode to an RRC idle mode,

receive an RRC message from the terminal, and

transmit an RRC connection release message to the terminal based on the RRC message,

wherein the RRC connection release message indicates transitioning from the RRC inactive mode to the RRC idle mode.

17. The base station of claim 16, wherein if the base station stores a context of the terminal and the paging message is triggered by the base station, the paging message includes an identification identifying the terminal in the RRC inactive mode.

18. The base station of claim 17, wherein the RRC message is an RRC connection resume request message.

19. The base station of claim 16, wherein if the paging message is transmitted from a core network node, the paging message includes at least one of a system architecture evolution-temporary mobile subscriber identity (S-TMSI) and an international mobile subscriber identity (IMSI).

20. The base station of claim 19, wherein the RRC message is an RRC connection request message.