Method and apparatus for managing user equipment history information in wireless communication network

• US 9,565,555 B2
• Filed: 09/02/2015
• Issued: 02/07/2017
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lim, Chae Gwon, Jeong, Kyeong In, Choi, Sung Ho, Bae, Beom Sik
• Primary Examiner(s): WYCHE, MYRON
• Application Number:
  US14/843,275
• Publication Number:
  US 20150382266A1
• Time in Patent Office: 524 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 8/22 Processing or transfer of terminal data, e.g. status or physical capabilities
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A method and an apparatus are provided in a first radio access technology (RAT). Mobility history information is generated including information on a time duration while in a second RAT. It is identified whether the terminal is in a Radio Resource Control (RRC) connected mode. The mobility history information is transmitted to a base station if the terminal is in the RRC connected mode.

Claims

1. A method by a terminal in a first radio access technology (RAT), the method comprising:

generating mobility history information including information on a time duration while in a second RAT;

identifying whether the terminal is in a Radio Resource Control (RRC) connected mode; and

transmitting the mobility history information to a base station if the terminal is in the RRC connected mode.

2. The method of claim 1, wherein transmitting the mobility history information comprises:

receiving a request for the mobility history information from the base station; and

transmitting the mobility history information to the base station in response to the request.

3. The method of claim 1, wherein generating the mobility history information comprises generating the mobility history information if a generating event occurs.

4. The method of claim 3, wherein the generating event comprises time related information.

5. The method of claim 1, wherein the mobility history information comprises at least one of a cell ID and a cell signal strength.

6. The method of claim 1, wherein the information on the time duration indicates a duration of stay in the second RAT.

7. A terminal in a first radio access technology (RAT), the terminal comprising:

a communication unit for receiving and transmitting a signal with a base station; and

a controller for generating mobility history information including information on a time duration while in a second RAT, identifying whether the terminal is in a Radio Resource Control (RRC) connected mode, and transmitting the mobility history information to a base station if the terminal is in the RRC connected mode.

8. The terminal of claim 7, wherein the controller receives a request for the mobility history information from the base station, and transmits the mobility history information to the base station in response to the request.

9. The terminal of claim 7, wherein the controller generates the mobility history information if a generating event occurs.

10. The terminal of claim 9, wherein the generating event comprises time related information.

11. The terminal of claim 7, wherein the mobility history information comprises at least one of a cell ID and a cell signal strength.

12. The terminal of claim 7, wherein the information on the time duration indicates a duration of stay in the second RAT.