System and method for state synchronization between a base station and a mobile station in a mobile communication system

• US 7,885,671 B2
• Filed: 07/06/2006
• Issued: 02/08/2011
• Est. Priority Date: 07/06/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Sung-Jin, Son, Yeong-Moon, Hong, Song-Nam, Kim, Young-Ho, Son, Jung-Je, Lim, Hyoung-Kyu, Cho, Jae-Weon, Lee, Mi-Hyun, Kang, Hyun-Jeong, Joo, Pan-Yuh, Chang, Hong-Sung
• Primary Examiner(s): Harper; Vincent P
• Assistant Examiner(s): Shaheed; Khalid
• Application Number:
  US11/481,534
• Publication Number:
  US 20070010267A1
• Time in Patent Office: 1,678 Days
• Field of Search: 370/329, 370/338, 370/342, 370/441, 370/324, 370/350, 370/503, 370/507, 370/509, 370/510, 370/512, 370/514, 370/520, 370/395.62, 455/403, 455/442, 455/502, 455/525, 455/561, 455/560
• US Class Current: 455/502
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 76/19 Connection re-establishment

Abstract

A system and method for state synchronization between a base station and a mobile station in a mobile communication system. A count value indicative of a state change of the base station is received. The received current count value is compared with a previous count value previously received and stored. If the current count value is different from the previous count value, the mobile station performs a network entry procedure with the base station.

Claims

1. A method for state synchronization with a Base Station (BS) in a Mobile Station (MS) of a mobile communication system, comprising:

receiving a current restart count value indicative of a number of times the BS restarts;

comparing the received current restart count value with a previous restart count value stored in the MS; and

performing a network entry procedure with the BS if the current restart count value is different from the previous restart count value.

4. The method of claim 1, wherein the current restart count value is received via a Base Station Reset INDication (BS_RESET_IND) message.

5. The method of claim 1, wherein the current restart count value is received via a Type/Length/Value (TLV) encoding field in a Downlink Channel Descript (DCD) message.

6. The method claim 1, wherein the current restart count value is received via a DownLink Frame Prefix (DLFP).

2. A method for state synchronization with a Mobile Station (MS) in a Base Station (BS) of a mobile communication system, comprising:

incrementing a current restart count value corresponding to a number of times the BS restarts; and

transmitting the current restart count value to the MS to enable the MS to perform a network entry procedure with the BS if a stored restart count value in the MS is different from the transmitted current restart count value.

7. The method of claim 2, wherein the current restart count value is transmitted via a Base Station Reset INDication (BS_RESET_IND) message.

8. The method of claim 2, wherein the current restart count value is transmitted via a Type/Length/Value (TLV) encoding field in a Downlink Channel Descript (DCD) message.

9. The method of claim 2, wherein the current restart count value is transmitted via a DownLink Frame Prefix (DLFP).

3. A system for state synchronization in a mobile communication system, comprising:

a Base Station (BS) for setting a current restart count value corresponding to a number of times the BS restarts and transmitting the current restart count value; and

a Mobile Station for receiving the current restart count value from the BS, comparing the received current restart count value with a previous restart count value stored in the MS, and performing a network entry procedure with the BS if the received current restart count value is different from the stored restart count value in the MS.

10. The system of claim 3, wherein the current restart count value is received via a Base Station Reset INDication (BS_RESET_IND) message.

11. The system of claim 3, wherein the current restart count value is received via a Type/Length/Value (TLV) encoding field in a Downlink Channel Descript (DCD) message.

12. The system of claim 3, wherein the current restart count value is received via a DownLink Frame Prefix (DLFP).