Cellular network handoff planning

• US 10,660,005 B1
• Filed: 11/28/2018
• Issued: 05/19/2020
• Est. Priority Date: 11/28/2018
• Status: Active Grant

• Current Assignee: Kyndryl Incorporated
• Original Assignee: International Business Machines Corporation
• Inventors: Lin, Ho Leung, Boss, Gregory J., Mukherjee, Maharaj, Mukherjee, Monimala
• Primary Examiner(s): Elhag, Magdi
• Application Number:
  US16/202,372
• Publication Number:
  US 20200169935A1
• Time in Patent Office: 538 Days
• CPC Class Codes: H04W 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/008375 based on historical data
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination

Abstract

Planning cell site handoffs using a navigation route. The navigation route is compared to the location of cell sites to predict the arrival time of a mobile device into each cell. Cell sites are selected based on the navigation route and user activity. Handoff between cells sites are scheduled in advance based on the navigation route.

Claims

1. A method comprising:

receiving, by one or more processors, a navigation route from a mobile device, wherein the navigation route indicates an intended path of travel;

determining, by one or more processors, a carrier of the mobile device;

determining, by one or more processors, a set of checkpoints along the navigation route, wherein the set of checkpoints is based on an expected location of the mobile device at timed increments;

selecting, by one or more processors, a plurality of cell sites servicing the set of checkpoints, wherein the plurality of cell sites is associated with the carrier;

generating, by one or more processors, a cell site handoff plan based on the plurality of cell sites with a set of handoff times based on an estimated arrival time of the mobile device at each checkpoint of the set of checkpoints; and

sending, by one or more processors, the cell site handoff plan to a base station controller of each cell site of the plurality of cell sites.

2. The method of claim 1, wherein selecting the plurality of cell sites further comprises:

determining a set of potential cell sites within transmission range of the set of checkpoints;

determining a distance between the set of checkpoints and the potential cell sites;

determining an available bandwidth of the potential cell sites;

determining a historic signal quality of the set of potential cell sites; and

selecting the plurality of cell sites from the set of potential cell sites based on the distance, available bandwidth, and the historic signal quality.

3. The method of claim 1, further comprising:

sending the cell site handoff plan to a network controller, wherein the network controller controls handoffs between cell sites.

4. The method of claim 1, further comprising:

generating a plurality of partial cell site handoff plans corresponding to the plurality of cell sites; and

sending the plurality of cell site handoff plans to the plurality of cell sites.

5. The method of claim 1, further comprising:

sending the cell site handoff plan to a first cell site of the plurality of cell sites;

executing a cell site handoff from the first cell site to a second cell site of the plurality of cell sites; and

sending the cell site handoff plan to the second cell site.

6. The method of claim 1, further comprises:

monitoring, by one or more processors, the mobile device for changes in the estimated arrival time of the mobile device at at least one checkpoint of the set of checkpoints.

7. A computer program product comprising:

one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising;

program instructions to receive a navigation route from a mobile device, wherein the navigation route indicates an intended path of travel;

program instructions to determine a carrier of the mobile device;

program instructions to determine a set of checkpoints along the navigation route, wherein the set of checkpoints is based on an expected location of the mobile device at timed increments;

program instructions to select a plurality of cell sites servicing the set of checkpoints, wherein the plurality of cell sites is associated with the carrier;

program instructions to generate a cell site handoff plan based on the plurality of cell sites with a set of handoff times based on an estimated arrival time of the mobile device at each checkpoint of the set of checkpoints; and

program instructions to send the cell site handoff plan to a base station controller of each cell site of the plurality of cell sites.

8. The computer program product of claim 7, wherein the program instructions to select the plurality of cell sites further comprises:

program instructions to determine a set of potential cell sites within transmission range of the set of checkpoints;

program instructions to determine a distance between the set of checkpoints and the potential cell sites;

program instructions to determine an available bandwidth of the potential cell sites;

program instructions to determine a historic signal quality of the set of potential cell sites; and

program instructions to select the plurality of cell sites from the set of potential cell sites based on the distance, available bandwidth, and the historic signal quality.

9. The computer program product of claim 7, further comprising:

program instructions to send the cell site handoff plan to a network controller, wherein the network controller controls handoffs between cell sites.

10. The computer program product of claim 7, further comprising:

program instructions to generate a plurality of partial cell site handoff plans corresponding to the plurality of cell sites; and

program instructions to send the plurality of cell site handoff plans to the plurality of cell sites.

11. The computer program product of claim 7, further comprising:

program instructions to send the cell site handoff plan to a first cell site of the plurality of cell sites;

program instructions to execute a cell site handoff from the first cell site to a second cell site of the plurality of cell sites; and

program instructions to send the cell site handoff plan to the second cell site.

12. The computer program product of claim 7, further comprises:

program instructions to monitor the mobile device for changes in the estimated arrival time of the mobile device at at least one checkpoint of the set of checkpoints.

13. A computer system comprising:

one or more computer hardware processors, one or more computer readable storage devices, and program instructions stored on the one or more computer readable storage devices for execution by at least one of the one or more hardware processors, the program instructions comprising;

program instructions to receive a navigation route from a mobile device, wherein the navigation route indicates an intended path of travel;

program instructions to determine a carrier of the mobile device;

program instructions to determine a set of checkpoints along the navigation route, wherein the set of checkpoints is based on an expected location of the mobile device at timed increments;

program instructions to select a plurality of cell sites servicing the set of checkpoints, wherein the plurality of cell sites is associated with the carrier;

program instructions to generate a cell site handoff plan based on the plurality of cell sites with a set of handoff times based on an estimated arrival time of the mobile device at each checkpoint of the set of checkpoints; and

program instructions to send the cell site handoff plan to a base station controller of each cell site of the plurality of cell sites.

14. The computer system of claim 13, wherein the program instructions to select the plurality of cell sites further comprises:

program instructions to determine a set of potential cell sites within transmission range of the set of checkpoints;

program instructions to determine a distance between the set of checkpoints and the potential cell sites;

program instructions to determine an available bandwidth of the potential cell sites;

program instructions to determine a historic signal quality of the set of potential cell sites; and

program instructions to select the plurality of cell sites from the set of potential cell sites based on the distance, available bandwidth, and the historic signal quality.

15. The computer system of claim 13, further comprising:

program instructions to send the cell site handoff plan to a network controller, wherein the network controller controls handoffs between cell sites.

16. The computer system of claim 13, further comprising:

program instructions to generate a plurality of partial cell site handoff plans corresponding to the plurality of cell sites; and

program instructions to send the plurality of cell site handoff plans to the plurality of cell sites.

17. The computer system of claim 13, further comprising:

program instructions to send the cell site handoff plan to a first cell site of the plurality of cell sites;

program instructions to execute a cell site handoff from the first cell site to a second cell site of the plurality of cell sites; and

program instructions to send the cell site handoff plan to the second cell site.

18. The computer system of claim 13, further comprises:

program instructions to monitor the mobile device for changes in the estimated arrival time of the mobile device at at least one checkpoint of the set of checkpoints.