System and method for adaptive reservation of radio resources for cells belonging to localized service area

• US 6,163,700 A
• Filed: 12/30/1998
• Issued: 12/19/2000
• Est. Priority Date: 12/30/1998
• Status: Expired due to Term

• Current Assignee: Unwired Planet LLC (JP Morgan Chase & Co)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Hussain, Tahir, Bhatia, Ranjit, Rouhollahzadeh, Bagher, Arabie, Patrick
• Primary Examiner(s): Vo, Nguyen
• Assistant Examiner(s): NGUYEN, DUC M
• Application Number:
  US09/224,814
• Time in Patent Office: 720 Days
• Field of Search: 455/450, 455/451, 455/452, 455/453, 455/447, 455/518, 455/519
• US Class Current: 455/453
• CPC Class Codes: H04W 16/04 Traffic adaptive resource partitioning
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/26 Resource reservation

Abstract

A telecommunications system and method is disclosed for providing adaptive reservation of radio resources within a Localized Service Area (LSA) in order to achieve more efficient channel utilization of radio resources within the LSA. During a predefined time period, a base station controller (BSC) within the LSA scans for the percentage of radio resources used by public mobile subscriber and LSA mobile subscribers. The BSC compares the scanned percentage of radio resources with a radio resource usage profile stored in the BSC. If the scanned radio resource usage differs from the radio resource usage profile, the BSC sets new radio resource reservations for LSA and public mobile subscribers and updates the radio resource usage profile with the new radio resource reservations. The process is repeated to ensure maximum efficient radio resource usage within the LSA.

Claims

1. A telecommunications node within a localized service area having a plurality of radio resources associated therewith, comprising:

a memory for storing a predetermined time period and an adjustable reservation percentage of said radio resources for localized service area mobile subscribers;

means for scanning available radio resources to determine a percentage of said radio resources utilized by localized service area mobile subscribers and a percentage of said radio resources utilized by public mobile subscribers during said predetermined time period;

means for performing a comparison of said scanned percentage of said radio resources utilized by localized service area mobile subscribers and said scanned percentage of said radio resources utilized by public mobile subscribers; and

means for establishing said reservation percentage based upon said comparison.

2. The telecommunications node of claim 1, further comprising a resource usage profile stored in said memory comprising a stored percentage of said radio resources utilized by localized service area mobile subscribers, a stored percentage of said radio resources utilized by public mobile subscribers and said reservation percentage from a previously measured time period.

3. The telecommunications node of claim 2, wherein said means for performing said comparison further comprises:

means for comparing said scanned percentage of said radio resources utilized by localized service area mobile subscribers with said stored percentage of said radio resources utilized by localized service area mobile subscribers to determine if they are equal, and for comparing said scanned percentage of said radio resources utilized by public mobile subscribers with said stored percentage of said radio resources utilized by public mobile subscribers to determine if they are equal.

4. The telecommunications node of claim 3, further comprising:

means for replacing said stored percentage of said radio resources utilized by public mobile subscribers with said scanned percentage of said radio resources utilized by public mobile subscribers if said scanned percentage of radio resources utilized by public mobile subscribers is not equal to said stored percentage of radio resources utilized by public mobile subscribers, and for replacing said stored percentage of said radio resources utilized by localized service area mobile subscribers with said scanned percentage of radio resources utilized by localized service area mobile subscribers if said scanned percentage of said radio resources utilized by localized service area mobile subscribers is not equal to said stored percentage of radio resources utilized by localized service area mobile subscribers.

5. The telecommunications node of claim 1, further comprising a radio resource table stored within said memory comprising a list of potential percentages of said radio resources utilized by localized service area mobile subscribers, each said potential percentage having a required reservation percentage associated therewith.

6. The telecommunications node of claim 5, wherein said means for establishing said reservation percentage further comprises:

means for establishing said reservation percentage as said required reservation percentage associated with said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by localized service area mobile subscribers.

7. The telecommunications node of claim 6, wherein said radio resource table further comprises a list of potential percentages of said radio resources utilized by said public mobile subscribers.

8. The telecommunications node of claim 7, wherein said means for establishing said reservation percentage further comprising:

means for establishing said reservation percentage as said required reservation percentage associated with said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by localized service area mobile subscribers and said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by public mobile subscribers.

9. The telecommunications node of claim 1, further comprising a maximum reservation percentage and a minimum reservation percentage stored within said memory, said established reservation percentage being between said maximum reservation percentage and said minimum reservation percentage.

10. The telecommunications node of claim 1, further comprising a traffic channel table stored within said memory comprising a list of allocated traffic channels, each said allocated traffic channel having a designation associated therewith.

11. The telecommunications node of claim 10, wherein said means for scanning for said percentage of said radio resources utilized by localized service area mobile subscribers further comprises:

means for scanning said traffic channel table for select ones of said allocated traffic channels that have said designation set to localized service area.

12. The telecommunications node of claim 10, wherein said means for scanning for said percentage of said radio resources utilized by public mobile subscribers further comprises:

means for scanning said traffic channel table for select ones of said allocated traffic channels that have said designation set to public.

13. The telecommunications node of claim 1, further comprising:

a threshold percentage stored within said memory;

means for scanning for a combined percentage of said radio resources utilized by both public mobile subscribers and localized service area mobile subscribers to determine if said threshold percentage is exceeded; and

means for comparing said combined percentage with said threshold percentage, said comparison of said percentages of said radio resources utilized by said public mobile subscribers and said localized service area mobile subscribers being performed when said combined percentage exceeds said threshold percentage.

14. The telecommunications node of claim 1, wherein said telecommunications node is a base station controller.

15. A localized service area for providing adaptive reservation of radio resources associated with at least one base transceiver station to localized service area mobile subscribers, comprising:

at least one cell served by said at least one base transceiver station, said at least one cell having localized service area mobile subscribers and public mobile subscribers located therein; and

a base station controller serving said cell, said base station controller comprising;

a memory for storing a predetermined time period and a reservation percentage of said radio resources for said localized service area mobile subscribers,

means for scanning for a percentage of said radio resources utilized by said localized service area mobile subscribers and a percentage of said radio resources utilized by said public mobile subscribers for said predetermined time period,

means for performing a comparison of said scanned percentage of said radio resources utilized by said localized service area mobile subscribers and said scanned percentage of said radio resources utilized by said public mobile subscribers, and

means for establishing said reservation percentage based upon said comparison.

16. The localized service area of claim 15, wherein said base station controller further comprises a resource usage profile stored in said memory comprising a stored percentage of said radio resources utilized by said localized service area mobile subscribers, a stored percentage of said radio resources utilized by said public mobile subscribers and said reservation percentage from a previously measured time period.

17. The localized service area of claim 16, wherein said means for performing said comparison further comprises:

means for comparing said scanned percentage of said radio resources utilized by said localized service area mobile subscribers with said stored percentage of said radio resources utilized by said localized service area mobile subscribers to determine if they are equal, and for comparing said scanned percentage of said radio resources utilized by said public mobile subscribers with said stored percentage of said radio resources utilized by said public mobile subscribers to determine if they are equal.

18. The localized service area of claim 16, further comprising:

an additional cell served by an additional base transceiver station, said additional cell having additional localized service area mobile subscribers and additional public mobile subscribers located therein, said base station controller having an additional reservation percentage and an additional resource usage profile associated with said additional cell stored in said memory therein.

19. The localized service area of claim 15, wherein said base station controller further comprises a radio resource table stored within said memory comprising a list of potential percentages of said radio resources utilized by said localized service area mobile subscribers, each said potential percentage having a required reservation percentage associated therewith.

20. The localized service area of claim 19, wherein said means for establishing said reservation percentage further comprises:

means for establishing said reservation percentage as said required reservation percentage associated with said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by said localized service area mobile subscribers.

21. The localized service area of claim 15, wherein said base station controller further comprises a traffic channel table stored within said memory comprising a list of allocated traffic channels, each said allocated traffic channel having a designation associated therewith.

22. The localized service area of claim 21, wherein said means for scanning for said percentage of said radio resources utilized by said localized service area mobile subscribers further comprises:

means for scanning said traffic channel table for select ones of said allocated traffic channels that have said designation set to localized service area.

23. The localized service area of claim 21, wherein said means for scanning for said percentage of said radio resources utilized by said public mobile subscribers further comprises:

means for scanning said traffic channel table for select ones of said allocated traffic channels that have said designation set to public.

24. The localized service area of claim 15, wherein said base station controller further comprises:

a threshold percentage stored within said memory;

means for scanning for a combined percentage of said radio resources utilized by both said public mobile subscribers and said localized service area mobile subscribers to determine if said threshold percentage is exceeded; and

means for comparing said combined percentage with said threshold percentage, said comparison of said percentages of said radio resources utilized by said public mobile subscribers and said localized service area mobile subscribers being performed when said combined percentage exceeds said threshold percentage.

25. A method for providing adaptive reservation of radio resources to localized service area mobile subscribers within a localized service area, comprising the steps of:

storing a predetermined time period and a reservation percentage of said radio resources for localized service area mobile subscribers in a base station controller within said localized service area;

scanning, by said base station controller, for a percentage of said radio resources utilized by localized service area mobile subscribers and a percentage of said radio resources utilized by public mobile subscribers for said predetermined time period;

performing, by said base station controller, a comparison of said scanned percentage of said radio resources utilized by localized service area mobile subscribers and said scanned percentage of said radio resources utilized by public mobile subscribers; and

establishing, by said base station controller, said reservation percentage based upon said comparison.

26. The method of claim 25, wherein said step of performing said comparison further comprises the steps of:

comparing said scanned percentage of said radio resources utilized by localized service area mobile subscribers with a stored percentage of said radio resources utilized by localized service area mobile subscribers stored in a resource usage profile in said base station controller; and

comparing said scanned percentage of said radio resources utilized by public mobile subscribers with a stored percentage of said radio resources utilized by public mobile subscribers stored in said resource usage profile.

27. The method of claim 26, further comprising the steps of:

replacing said stored percentage of said radio resources utilized by public mobile subscribers with said scanned percentage of said radio resources utilized by public mobile subscribers; and

replacing said stored percentage of said radio resources utilized by localized service area mobile subscribers.

28. The method of claim 25, wherein said step of establishing said reservation percentage further comprises the steps of:

accessing a radio resource table having a list of potential percentages of said radio resources utilized by localized service area mobile subscribers, each said potential percentage having a required reservation percentage associated therewith; and

establishing said reservation percentage as said required reservation percentage associated with said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by localized service area mobile subscribers.

29. The method of claim 28, wherein said step of establishing said reservation percentage further comprises the steps of:

accessing a list of potential percentages of said radio resources utilized by said public mobile subscribers within said radio resource table; and

establishing said reservation percentage as said required reservation percentage associated with said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by localized service area mobile subscribers and said potential percentage that substantially corresponds to said scanned percentage of said radio resources utilized by public mobile subscribers.

30. The method of claim 25, wherein said step of scanning for said percentage of said radio resources utilized by localized service area mobile subscribers further comprises the step of:

scanning a traffic channel table stored within said base station controller for select ones of allocated traffic channels within said traffic channel table that have a designation set to localized service area.

31. The method of claim 30, wherein said step of scanning for said percentage of said radio resources utilized by public mobile subscribers further comprises the step of:

scanning said traffic channel table for select ones of said allocated traffic channels that have said designation set to public.

32. The method of claim 25, wherein said step of performing further comprises the steps of:

scanning for a combined percentage of said radio resources utilized by both public mobile subscribers and localized service area mobile subscribers;

comparing said combined percentage with a threshold percentage stored within said base station controller; and

performing said comparison of said percentages of said radio resources utilized by said public mobile subscribers and said localized service area mobile subscribers being performed when said combined percentage exceeds said threshold percentage.