Method for replace-block loading in a multiprocessor system

• US 6,205,581 B1
• Filed: 11/09/1998
• Issued: 03/20/2001
• Est. Priority Date: 11/07/1997
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kang, Sung-min
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): DAM, TUAN QUANG
• Application Number:
  US09/188,826
• Time in Patent Office: 862 Days
• Field of Search: 455/418, 455/419, 455/420, 455/507, 455/560, 370/441, 370/320, 370/335, 370/342, 717/11, 709/221, 713/2, 713/100
• US Class Current: 717/173
• CPC Class Codes: G06F 8/656 while running

Abstract

The present invention relates a method for replace-block loading using a man machine command and for processing a replace block loading (RPL-LDNG-BLK) command using a processor loader execution in a BTS control processor or selector interface processor. The method for replace-block loading in order to replace a target application block corresponding to a target processor during normal operation of all the processors in a base station controller (BSC) without disrupting the target processor in a personal communication services (PCS) system, includes the steps of: creating a loading table and allocating a save-buffer for application blocks corresponding to a plurality of processors in the BSC and a rpl-buffer for the target application block to be replaced corresponding to the target processor; down-loading an application block corresponding to a CCP from a BSM; loading an application block corresponding to lower-level processors of the CCP, the application block being stored in a buffer of the CCP; receiving a replace-loading-block (RPL-LDNG-BLK) command from the BSM; confirming the type of the target processor; and loading the target application block according to the type of the target processor. The method for processing a RPL-LDNG-BLK command using a PLX in order to normally operate at an initialization state in a PCS employing a CDMA method comprises the steps of: creating a loading table about application blocks corresponding to lower processors of either of the BCP or SIP; loading the lower application blocks from a CCP to the BCP or SIP and managing at the loading table information about loading.

Claims

1. A method for replace-block loading in a personal communication services (PCS) system in order to replace a target application block corresponding to a target processor during normal operation of a plurality of processors in a base station controller (BSC) the method comprising the steps of:

creating a loading table and allocating a save-buffer for application blocks corresponding to the plurality of processors in said BSC and a replace buffer (rpl-buffer) for said target application block to be replaced corresponding to said target processor;

down-loading an application block corresponding to a call control processor (CCP) from a base station manager (BSM);

loading an application block corresponding to all lower-level processors of said CCP, said application block being stored in a buffer of said CCP;

receiving a replace-loading-block (RPL-LDNG-BLK) command from said BSM;

confirming the type of said target processor; and

loading said target application block according to the type of said target processor.

2. A method for replace-block loading as set forth in claim 1, further comprising a step, in response to said target processor being confirmed as either of said SVP, CIP, TIP or BTP, of loading and storing said target application block in a non-used area of said save-buffer.

3. A method for replace-block loading as set forth in claim 2, further comprising a step of memory freeing for removing existing version of said target application block in response to successful loading of said target application block.

4. A method for replace-block loading as set forth in claim 3, further comprising a step of updating said loading table by providing the location of said target application block to said loading table.

5. A method for replace-block loading as set forth in claim 4, further comprising a step of sending an RPL-LDNG-BLK command from one of said BCP or SIP to said target processor.

6. A method for replace-block loading as set forth in claim 5, further comprising a step of requesting to load said target application block from said target processor.

7. A method for replace-block loading as set forth in claim 6, further comprising a step of loading said target application block to a non-used memory allocated for replacement.

8. A method for replace-block loading as set forth in claim 7, further comprising a step of confirming whether loading of said target application block is successfully completed.

9. A method for replace-block loading as set forth in claim 8, further comprising a step of memory freeing for removing an existing application block of said target processor stored in response to successful loading of said target application block.

10. A method for replace-block loading as set forth in claim 9, further comprising a step of updating said loading table by providing the location of said newly loaded target application block to said loading table.

11. A method for replace-block loading as set forth in claim 10, further comprising a step of restarting said target processor and causing reloading.

12. A method for replace-block loading as set forth in claim 8, further comprising a step of clearing a memory allocated for replacement and reporting N_OK on said RPL-LDNG-BLK, if said target application block fails in loading.

13. A method for replace-block loading as set forth in claim 2, further comprising a step of freeing said rpl-buffer allocated for replacement and reporting N_OK on said RPL-LDNG-BLK, if said target application block fails in loading.

14. A method for replace-block loading as set forth in claim 1, further comprising a step of loading and storing said target application block in said rpl-buffer in response to said target processor being confirmed as a CCP.

15. A method for replace-block loading as set forth in claim 14, further comprising a step of memory freeing for removing an existing version of said target application block being executed in response to successful loading of said target application.

16. A method for replace-block loading as set forth in claim 15, further comprising a step of allocating a dynamic memory in accordance with information contained in said loading table.

17. A method for replace-block loading as set forth in claim 16, further comprising a step of copying said target application block stored in said rpl-buffer to said dynamic memory.

18. A method for replace-block loading as set forth in claim 17, further comprising a step of freeing said rpl-buffer allocated for replacement and updating said loading table.

19. A method for replace-block loading as set forth in claim 18, further comprising a step of executing said copied target application block in said dynamic memory by using an OS primitive.

20. A method for replace-block loading as set forth in claim 14, further comprising a step of freeing said rpl-buffer and reporting N_OK, if said target application block fails in being loaded.

21. A method for replace-block loading as set forth in claim 1, further comprising a step, in response to said target processor being confirmed as either of said BCP, SIP, CSP or ACP, of loading and storing said target application block in a non-used area of said save-buffer.

22. A method for replace-block loading as set forth in claim 21, further comprising a step of memory freeing for removing an existing application block in response to successful loading of said target application block.

23. A method for replace-block loading as set forth in claim 22, further comprising a step of updating said loading table by providing the location of said newly loaded target application block to said loading table.

24. A method for replace-block loading as set forth in claim 23, further comprising a step of restarting said target processor and reloading said application block.

25. A method for replace-block loading as set forth in claim 21, further comprising a step of clearing said rpl-buffer allocated for replacement and reporting N_OK on said RPL-LDNG-BLK, if said target application block fails in loading.

26. A method for processing a RPL-LDNG-BLK command using a processor loader execution (PLX) in a BTS control processor (BCP) or selector interface processor (SIP) in order for a BCP or a SIP to normally operate at an initialization state in a personal communication services (PCS) employing a code division multiple access (CDMA), said method comprising the steps of:

creating a loading table about application blocks corresponding to lower processors of one of said BCP and SIP; and

loading said lower application blocks from a CCP to one of said BCP and SIP and managing at said loading table information about loading.