Method and system for dynamic allocation of resources in a cellular network

• US 10,057,034 B2
• Filed: 04/01/2016
• Issued: 08/21/2018
• Est. Priority Date: 02/26/2013
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Yanover, Vladimir, Nuss, Ziv
• Primary Examiner(s): Mizrahi, Diane
• Application Number:
  US15/089,252
• Publication Number:
  US 20160219596A1
• Time in Patent Office: 872 Days
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

One example method is provided for dynamic allocation of air interface resources in a cellular network comprising at least three wireless cells located within a geographical proximity of each other, the method comprising determining, by a central managing entity, one or more classification rules for classifying each of said plurality of mobile devices according to the one or more classification rules; providing, by the central management entity, to a group of base stations associated with the at least three cells, information that comprises: information that relates to the determined one or more classification rules; information that relates to semi-static allocation of blocks of air interface resources adapted for use by one or more specific members of the group of base stations.

Claims

1. A method comprising:

determining, by a central management entity, a semi-static allocation of air interface resource blocks into a first portion of air interface resource blocks designated for uncoordinated use and a second portion of air interface resource blocks designated for coordinated use;

communicating information associated with the semi-static allocation of the air interface resource blocks to each of the plurality of small cell base stations;

setting transmission power for at least one of;

each of the plurality of small cell base stations and one or more mobile devices connected to each of the plurality of small cell base stations for the first portion of air interface resource blocks with no coordination among the plurality of small cell base stations; and

exchanging messages between at least two of the plurality of small cell base stations to set transmission power for at least one of;

each of the at least two of the plurality of small cell base stations and one or more other mobile devices connected to each of the at least two of the plurality of small cell base stations for the second portion of air interface resource blocks.

2. The method of claim 1, further comprising:

determining, by the central management entity, one or more frequency partitions for the first portion of air interface resource blocks; and

determining, by the central management entity, one or more frequency partitions for the second portion of air interface resource blocks.

3. The method of claim 1, wherein transmission power for a particular small cell base station can be associated with at least one of:

a power density value for transmissions to be performed by the particular base station; and

a power density limit for transmissions to be performed by the particular base station.

4. The method of claim 1, wherein transmission power for a particular mobile device can be associated with at least one of:

a power density value for transmissions to be performed by the particular mobile device; and

a power density limit for transmissions to be performed by the particular mobile device.

5. The method of claim 1, further comprising:

determining, by the central management entity, one or more classification rules for classifying one or more mobile devices connected to each of the plurality of small cell base stations, wherein the classification rules are included in the information communicated to the plurality of small cell base stations.

6. The method of claim 5, further comprising:

classifying, by each respective small cell base station of the plurality of small cell base stations, one or more mobile devices connected to each respective small cell base station based on the classification rules as either a cell center mobile device or a cell edge mobile device.

7. The method of claim 6, further comprising:

setting transmission power for any mobile device classified as a cell center mobile device using the first portion of air interface resource blocks; and

setting transmission power for any mobile device classified as a cell edge mobile device using the second portion of air interface resource blocks.

8. The method of claim 6, wherein a mobile device is classified as a cell edge mobile device upon determining that the mobile device is located at a distance greater than 30 meters from a small cell base station to which the mobile device is connected;

and

wherein a mobile device is classified as a cell center mobile device upon determining that the mobile device is located at a distance less than 30 meters from a small cell base station to which the mobile device is connected.

9. A computer program product comprising instructions for execution stored on a non-transitory computer readable storage medium wherein when the instructions are executed by a processor, the processor operates to perform operations comprising:

determining, by a central management entity, a semi-static allocation of air interface resource blocks into a first portion of air interface resource blocks designated for uncoordinated use and a second portion of air interface resource blocks designated for coordinated use;

communicating information associated with the semi-static allocation of the air interface resource blocks to each of the plurality of small cell base stations;

setting transmission power for at least one of;

each of the plurality of small cell base stations and one or more mobile devices connected to each of the plurality of small cell base stations for the first portion of air interface resource blocks with no coordination among the plurality of small cell base stations; and

exchanging messages between at least two of the plurality of small cell base stations to set transmission power for at least one of;

each of the at least two of the plurality of small cell base stations and one or more other mobile devices connected to each of the at least two of the plurality of small cell base stations for the second portion of air interface resource blocks.

10. The computer program product of claim 9, further comprising instructions for execution wherein when the instructions are executed, the processor operates to perform operations comprising:

determining, by the central management entity, one or more frequency partitions for the first portion of air interface resource blocks; and

determining, by the central management entity, one or more frequency partitions for the second portion of air interface resource blocks.

11. The computer program product of claim 9, wherein transmission power for a particular small cell base station can be associated with at least one of:

a power density value for transmissions to be performed by the particular base station; and

a power density limit for transmissions to be performed by the particular base station.

12. The computer program product of claim 9, wherein transmission power for a particular mobile device can be associated with at least one of:

a power density value for transmissions to be performed by the particular mobile device; and

a power density limit for transmissions to be performed by the particular mobile device.

13. The computer program product of claim 9, further comprising instructions for execution wherein when the instructions are executed, the processor operates to perform operations comprising:

determining, by the central management entity, one or more classification rules for classifying one or more mobile devices connected to each of the plurality of small cell base stations, wherein the classification rules are included in the information communicated to the plurality of small cell base stations.

14. The computer program product of claim 13, further comprising instructions for execution wherein when the instructions are executed, the processor operates to perform operations comprising:

classifying, by each respective small cell base station of the plurality of small cell base stations, one or more mobile devices connected to each respective small cell base station based on the classification rules as either a cell center mobile device or a cell edge mobile device.

15. The computer program product of claim 14, further comprising instructions for execution wherein when the instructions are executed, the processor operates to perform operations comprising:

setting transmission power for any mobile device classified as a cell center mobile device using the first portion of air interface resource blocks; and

setting transmission power for any mobile device classified as a cell edge mobile device using the second portion of air interface resource blocks.

16. The computer program product of claim 15, wherein a mobile device is classified as a cell edge mobile device upon determining that the mobile device is located at a distance greater than 30 meters from a small cell base station to which the mobile device is connected;

and

wherein a mobile device is classified as a cell center mobile device upon determining that the mobile device is located at a distance less than 30 meters from a small cell base station to which the mobile device is connected.

17. A communication system comprising:

a central management entity comprising one or more processors that operates to execute instructions wherein when executing the instructions the one or more processors for the central management entity operate to;

determine a semi-static allocation of air interface resource blocks into a first portion of air interface resource blocks designated for uncoordinated use and a second portion of air interface resource blocks designated for coordinated use; and

communicate information associated with the semi-static allocation of the air interface resource blocks to each of the plurality of small cell base stations; and

a plurality of small cell base stations, each small cell base station comprising one or more processors that operates to execute instructions, wherein when executing the instructions the plurality of small cell base stations operate to;

set transmission power for at least one of;

each of the plurality of small cell base stations and one or more mobile devices connected to each of the plurality of small cell base stations for the first portion of air interface resource blocks with no coordination among the plurality of small cell base stations; and

exchange messages between at least two of the plurality of small cell base stations to set transmission power for at least one of;

each of the at least two of the plurality of small cell base stations and one or more other mobile devices connected to each of the at least two of the plurality of small cell base stations for the second portion of air interface resource blocks.

18. The communication system of claim 17, wherein transmission power for a particular small cell base station can be associated with at least one of:

a power density value for transmissions to be performed by the particular base station; and

a power density limit for transmissions to be performed by the particular base station.

19. The communication system of claim 17, wherein transmission power for

a particular mobile device can be associated with at least one of:

a power density value for transmissions to be performed by the particular mobile device; and

a power density limit for transmissions to be performed by the particular mobile device.

20. The communication system of claim 17, wherein when executing the instructions the one or more processors for the central management entity further operate to:

determine one or more classification rules for classifying one or more mobile devices connected to each of the plurality of small cell base stations, wherein the classification rules are included in the information communicated to the plurality of small cell base stations.