Method and apparatus for selecting dedicated core network

• US 10,172,059 B2
• Filed: 06/05/2017
• Issued: 01/01/2019
• Est. Priority Date: 08/14/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jeong, Sangsoo, Won, Sung Hwan, Lee, Hyojin, Choi, Seunghoon, Oh, Jinyoung, Ji, Hyoungju, Kim, Younsun, Shin, Cheolkyu, Kim, Donghan, Noh, Hoondong
• Primary Examiner(s): Shaheed, Khalid
• Application Number:
  US15/613,887
• Publication Number:
  US 20170272993A1
• Time in Patent Office: 575 Days
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04W 12/00 Security arrangements; Authentication; Protecting privacy or anonymity
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 36/0022 for transferring data sessions between adjacent core network technologies
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/142 over the same radio air interface technology
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 60/005 Multiple registrations, e.g. multihoming
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 8/065 involving selection of the user mobility server

Abstract

Various communication techniques and related systems for a fusion between a 5th generation (5G) communication system and Internet of Things (IoT) technology are provided. A user equipment (UE) is required to select a dedicated core network so as to receive a suitable service. In a method for transmitting and receiving a signal, an enhanced Node B (eNB) of a mobile communication system transmits a first request message to a first mobile management entity (MME), receives a reroute command message based on the first request message from the first MME, and transmits a second message to a second MME based on the reroute command message. Herein, the reroute command message contains the first request message, at least one MME identifier, and a UE identifier.

Claims

1. A method of a user equipment (UE) for performing an attach procedure, the method comprising:

transmitting, to an evolved Node B (eNB), an attach request message including a UE identifier;

receiving, from the eNB, a radio resource control (RRC) connection reconfiguration message; and

transmitting, to the eNB, an RRC connection complete message in response to the RRC connection reconfiguration message,

wherein the attach request message is forwarded to a first mobile management entity (MME),

wherein the RRC connection reconfiguration message is based on an attach accept message from a second MME, and

wherein the second MME is selected based on a reroute command message from the first MME, the reroute command message including the UE identifier and at least one MME identifier indicating a dedicated core network.

2. The method of claim 1, wherein the UE identifier is an additional globally unique temporary UE identity (GUTI).

3. The method of claim 1, wherein the at least one MME identifier is an MME group identifier (MMEGI).

4. The method of claim 1, wherein the second MME is associated with the dedicated core network.

5. A user equipment (UE) in a mobile communication system, the UE comprising:

a transceiver configured to transmit and receive a signal; and

a processor configured to control the transceiver to;

transmit, to an evolved Node B (eNB), an attach request message including a UE identifier,

receive, from the eNB, a radio resource control (RRC) connection reconfiguration message, and

transmit, to the eNB, an RRC connection complete message in response to the RRC connection reconfiguration message,

wherein the attach request message is forwarded to a first mobile management entity (MME),

wherein the RRC connection reconfiguration message is based on an attach accept message from a second MME, and

wherein the second MME is selected based on a reroute command message from the first MME, the reroute command message including the UE identifier and at least one MME identifier indicating a dedicated core network.

6. The UE of claim 5, wherein the UE identifier is an additional globally unique temporary UE identity (GUTI).

7. The UE of claim 5, wherein the at least one MME identifier is an MME group identifier (MMEGI).

8. The UE of claim 5, wherein the second MME is associated with the dedicated core network.