SYSTEM AND METHOD FOR STATE SYNCHRONIZATION BETWEEN A BASE STATION AND A MOBILE STATION IN A MOBILE COMMUNICATION SYSTEM

• US 20110098069A1
• Filed: 12/29/2010
• Published: 04/28/2011
• Est. Priority Date: 07/06/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: HONG, SONG-NAM, SON, YEONG-MOON, LEE, SUNG-JIN, KIM, YOUNG-HO, LEE, MI-HUN, JOO, PAN-YUH, CHO, JAE-WEON, CHANG, HONG-SUNG, SON, JUNG-JE, LIM, HYOUNG-KYU, KANG, HYUN-JEONG
• Granted Patent: US 9,380,631 B2
• Time in Patent Office: Days
• US Class Current: 455/507
• 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. An apparatus in a Mobile Station (MS) for state synchronization with a Base Station (BS) in a mobile communication system, the apparatus comprising:

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

a processor for 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.

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

3. The apparatus 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.

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

5. An apparatus in a Base Station (BS) for state synchronization with a Mobile Station (MS) in a mobile communication system, the apparatus comprising:

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

a transmitter for 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.

6. The apparatus of claim 5, wherein the current restart count value is transmitted via a Base Station Reset INDication (BS_RESET_IND) message.

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

8. The apparatus of claim 5, wherein the current restart count value is transmitted via a DownLink Frame Prefix (DLFP).