Method and system for the common management of communication resources in a telecommunications network having distinct communication resources pools

• US 9,326,202 B2
• Filed: 05/12/2008
• Issued: 04/26/2016
• Est. Priority Date: 05/12/2008
• Status: Active Grant

• Current Assignee: Telecom Italia S.p.A.
• Original Assignee: Telecom Italia S.p.A.
• Inventors: Barbaresi, Andrea, Goria, Paolo, Tosalli, Marco
• Primary Examiner(s): BEDNASH, JOSEPH A
• Application Number:
  US12/992,241
• Publication Number:
  US 20110082937A1
• Time in Patent Office: 2,906 Days
• Field of Search: 370/229, 370/230, 370/232, 370/235, 370/236, 370254-255, 370328-331, 370/437, 709224-226, 709/229, 709/235
• US Class Current: 1/1
• CPC Class Codes: H04W 36/0083 Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
• CPC Class Codes: H04W 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

A method of providing, in a telecommunications network including at least a first and a second set of communication resources, a service to users in a condition of being provided said service both by the first set of communication resources and by the second set of communication resources. The method includes the steps of: upon receipt, through the first set of communication resources, of a service request related to the service from a user, attempting to redirect the service request to the second set of communication resources; and if the attempt succeeds, provisioning the service to the user by the second set of communication resources. The attempt to redirect the service request includes identifying a communication resource among the second set of communication resources, by either considering or not communication resources of the second set as candidates for the service request redirection based on a history criterion that takes into account an observation of the outcome of past redirection attempts.

Claims

1. A method of providing services in a telecommunications network comprising:

receiving, from a user terminal, a service request to access a first communication resource included in the telecommunications network;

prior to providing a service corresponding to the service request, generating a list comprising a plurality of candidate communication resources to attempt to redirect the service request to, wherein the list includes a second communication resource;

determining whether a number of previous failed attempts to redirect service requests to a third communication resource exceeds a threshold;

in response to determining that the number of previous failed attempts to redirect service requests to the third communication resource exceeds the threshold;

determining a time interval to exclude the third communication resource from the list based on successes and failures of previous attempts to redirect service requests to the third communication resource; and

excluding the third communication resource from the list for the determined time interval;

determining whether one or more criterion for the second communication resource of the plurality of candidate communication resources is satisfied, wherein the one or more criterion comprises a history criterion that takes into account outcomes of past redirection attempts to the second communication resource; and

if the one or more criterion for the second communication resource is satisfied, redirecting the service request to the second communication resource and providing the service corresponding to the service request to the user terminal using said second communication resource.

2. The method of claim 1, wherein said one or more criterion further comprises one or more of the following criteria:

a type of the requested service,

a load status of the first communication resource, and

a number of previous service requests for the first communication resource exceeding a predefined number.

3. The method of claim 1, further comprising:

decreasing said time interval if a redirection attempt to the third communication resource succeeds; and

increasing said time interval if a redirection attempt to the third communication resource fails.

4. The method of claim 3, further comprising determining a minimum time interval value and a maximum time interval value, wherein:

decreasing said time interval comprises setting said time interval to the minimum time interval value if said time interval would be decreased below the minimum time interval value, and

increasing said time interval comprises setting said time interval to the maximum time interval value if said time interval would be increased above the maximum time interval value.

5. The method of claim 1, further comprising:

receiving, from the second communication resource, a message indicating acceptance or refusal of the redirection attempt, wherein the acceptance or refusal is based on a current load status of the second communication resource.

6. The method of claim 1, wherein said first communication resource and said second communication resource comprise one or more of the following:

radio resources belonging to different radio access technologies,

radio resources using different radio frequencies,

cells of cellular networks belonging to different hierarchical levels,

radio resources having a different radio resources control management,

radio resources corresponding to different and at least partially overlapped radio coverage areas obtainable by different beams of the same antenna or different antennas, and

different logical transport links.

7. The method of claim 6, wherein said first communication resource comprises a first cell of a cellular network and said second communication resource comprises a second cell of the cellular network, and said generating the list comprising the plurality of candidate communication resources comprises determining that the second cell overlaps with the first cell.

8. The method of claim 1, wherein said second communication resource comprises radio communication resources, and wherein the method further comprises:

performing measurements on a radio quality of the radio communication resources.

9. The method of claim 1, further comprising:

ordering the list based on an amount of overlap of each of the plurality of candidate communication resources with the first communication resource.

10. The method of claim 9, wherein the first communication resource comprises a cell of a cellular network belonging to a first hierarchical level, and wherein each of the plurality of candidate communication resources comprises a cell of the cellular network belonging to a hierarchical level lower than the first hierarchical level.

11. The method of claim 1, wherein redirecting the service request to the second communication resource and providing the service corresponding to the service request to the user terminal using said second communication resource are performed before providing the service using said first communication resource.

12. A non-transitory computer readable medium having computer readable instructions stored thereon that, when executed by at least one computer, perform the method steps of claim 1.

13. A communications resources controller for a telecommunications network, the communications resources controller comprising:

a computing device; and

one or more computer readable media having computer readable instructions stored thereon that, when executed by the computing device, cause the communications resources controller to;

receive, from a user terminal, a service request to access a first communication resource included in the telecommunications network;

prior to providing a service corresponding to the service request, generate a list comprising a plurality of candidate communication resources to attempt to redirect the service request to, wherein the list includes a second communication resource;

determine whether a number of previous failed attempts to redirect service requests to a third communication resource exceeds a threshold;

in response to determining that the number of previous failed attempts to redirect service requests to the third communication resource exceeds the threshold;

determine a time interval to exclude the third communication resource from the list based on successes and failures of previous attempts to redirect service requests to the third communication resource; and

exclude the third communication resource from the list for the determined time interval;

determine whether one or more criterion for the second communication resource of the plurality of candidate communication resources is satisfied, wherein the one or more criterion comprises a history criterion that takes into account outcomes of past redirection attempts to the second communication resource; and

if the one or more criterion for the second communication resource is satisfied, redirect the service request to the second communication resource and provide the service corresponding to the service request to the user terminal using said second communication resource.

14. A telecommunications network including at least a first communication resource and a second communication resource and adapted to provide services to user terminals, the telecommunications network comprising a communications resources controller according to claim 13.

15. The communications resources controller of claim 13, wherein redirecting the service request to the second communication resource and providing the service corresponding to the service request to the user terminal using said second communication resource are performed before providing the service using said first communication resource.

16. The communications resources controller of claim 13, wherein the one or more computer readable media has computer readable instructions stored thereon that, when executed by the computing device, cause the communications resources controller to:

decrease said time interval if a redirection attempt to the third communication resource succeeds; and

increase said time interval if a redirection attempt to the third communication resource fails.

17. The communications resources controller of claim 13, wherein the one or more computer readable media has computer readable instructions stored thereon that, when executed by the computing device, cause the communications resources controller to:

receive, from the second communication resource, a message indicating acceptance or refusal of the redirection attempt, wherein the acceptance or refusal is based on a current load status of the second communication resource.

18. The communications resources controller of claim 13, wherein said first communication resource and said second communication resource comprise one or more of the following:

radio resources belonging to different radio access technologies,

radio resources using different radio frequencies,

cells of cellular networks belonging to different hierarchical levels,

radio resources having a different radio resources control management,

radio resources corresponding to different and at least partially overlapped radio coverage areas obtainable by different beams of the same antenna or different antennas, and

different logical transport links.

19. The communications resources controller of claim 18, wherein said first communication resource comprises a first cell of a cellular network and said second communication resource comprises a second cell of the cellular network, and said generating the list comprising the plurality of candidate communication resources comprises determining that the second cell overlaps with the first cell.

20. The communications resources controller of claim 13, wherein said second communication resource comprises radio communication resources, and wherein the one or more computer readable media has computer readable instructions stored thereon that, when executed by the computing device, cause the communications resources controller to:

perform measurements on a radio quality of the radio communication resources.