METHOD AND APPARATUS FOR CONTROLLING TRAFFIC STEERING IN WIRELESS COMMUNICATION SYSTEM

• US 20160295614A1
• Filed: 05/02/2014
• Published: 10/06/2016
• Est. Priority Date: 05/06/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Youngdae, LEE, Jaewook, JUNG, Sunghoon
• Granted Patent: US 10,104,694 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A method and apparatus for controlling traffic steering in a wireless communication system is provided. A user equipment (UE), which is able to communicate with a first node and a second node simultaneously, may performs a random access to the first node if initiated service corresponds to an emergency service or a service of the UE which has high priority. Alternatively, the UE may acquire bearer steering criterion, which indicates which bearer should be served either at the first node or the second node, from the first node, and determine whether to request the specific bearer service to the first node or the second node according to the bearer steering criterion.

Claims

1. A method for performing, by a user equipment (UE) which is able to communicate with a first node and a second node simultaneously, a random access in a wireless communication system, the method comprising:

performing a random access to the first node if initiated service corresponds to an emergency service or a service of the UE which has high priority.

2. The method of claim 1, further comprising:

performing a random access to the second node if the initiated service does not correspond to an emergency service or a service of UE which has high priority.

3. The method of claim 1, wherein an access class of the UE which has high priority is one of 11, 12, 13, 14 or 15.

4. The method of claim 1, wherein the first node is a master eNB (MeNB) of a 3^rd generation partnership project (3GPP) long-term evolution (LTE) system, and

wherein the second node is a secondary eNB (SeNB) of the 3GPP LTE system.

5. The method of claim 1, wherein the first node is an eNB of a 3GPP LTE system, and

wherein the second node is an access point (AP) of a wireless local area network (WLAN) system.

6. A method for steering, by a user equipment (UE) which is able to communicate with a first node and a second node simultaneously, traffic in a wireless communication system, the method comprising:

acquiring bearer steering criterion, which indicates which bearer should be served either at the first node or the second node, from the first node;

receiving a request of a specific bearer service; and

determining whether to request the specific bearer service to the first node or the second node according to the bearer steering criterion.

7. The method of claim 6, wherein the bearer steering criterion is acquired via system information.

8. The method of claim 6, wherein the request of the specific bearer service is received from an upper layer of the UE.

9. The method of claim 6, wherein it is determined to request the specific bearer service to the first node if the specific bearer service corresponds to a multimedia telephony service (MMTEL) voice service or a voice service.

10. The method of claim 6, wherein it is determined to request the specific bearer service to the first node if the specific bearer service corresponds to an IP multimedia subsystem (IMS)/MMTEL service, an emergency service, or a service of delay-tolerant access.

11. The method of claim 6, wherein it is determined to request the specific bearer service to the first node if the specific bearer service belongs to a specific packet data network (PDN) gateway.

12. The method of claim 6, wherein it is determined to request the specific bearer service to the first node if the specific bearer service corresponds to a service of the UE whose access class is one of 11, 12, 13, 14 or 15.

13. The method of claim 6, wherein the first node is a master eNB (MeNB) of a 3^rd generation partnership project (3GPP) long-term evolution (LTE) system, and

wherein the second node is a secondary eNB (SeNB) of the 3GPP LTE system.

14. The method of claim 6, wherein the first node is an eNB of a 3GPP LTE system, and

wherein the second node is an access point (AP) of a wireless local area network (WLAN) system.

15. The method of claim 6, further comprising:

performing a random access to the first node or the second node for the specific bearer service.