Method and apparatus for performing X2 setup procedure in wireless communication system

• US 9,756,667 B2
• Filed: 02/18/2014
• Issued: 09/05/2017
• Est. Priority Date: 02/18/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Xu, Jian, Byun, Daewook, Lee, Insun, Park, Kyungmin
• Primary Examiner(s): Orgad, Edan
• Assistant Examiner(s): Ko, Sithu
• Application Number:
  US14/766,583
• Publication Number:
  US 20150373755A1
• Time in Patent Office: 1,295 Days
• Field of Search: None
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/06 Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/16 Gateway arrangements
• CPC Class Codes: H04W 92/04 Interfaces between hierarchically different network devices

Abstract

A method and apparatus for performing an X2 setup procedure in a wireless communication system is provided. An X2 gateway (GW) establishes a stream control transmission protocol (SCTP) connection with an eNodeB (eNB) based on a transport network layer (TNL) address of the X2-GW, receives an X2 setup request message from the eNB, and transmits an indication which indicates an invalidity of served cell information IE to the eNB.

Claims

1. A method for performing, by an X2 gateway (GW), an X2 setup procedure in a wireless communication system, the method comprising:

establishing a stream control transmission protocol (SCTP) connection with an eNodeB (eNB) based on a transport network layer (TNL) address of the X2-GW;

receiving an X2 setup request message from the eNB; and

transmitting an X2 setup response message including a fake served cell information IE, which indicates an invalidity of served cell information IE, to the eNB as a response to the X2 setup request message.

2. The method of claim 1, wherein the fake served cell information IE uses a random number or a fixed number.

3. The method of claim 1, wherein the indication further indicates an invalidity of other related IEs.

4. The method of claim 1, wherein the eNB is either a macro eNB or a home eNB (HeNB).

5. A method for performing, by an eNodeB (eNB), an X2 setup procedure in a wireless communication system, the method comprising:

configuring a transport network layer (TNL) address of an X2-GW;

establishing a stream control transmission protocol (SCTP) connection with the X2-GW based on the configured TNL address of the X2-GW;

transmitting an X2 setup request message to the X2-GW; and

receiving an X2 setup response message including a fake served cell information IE, which indicates an invalidity of served cell information IE, from the X2-GW as a response to the X2 setup request message.