METHOD AND APPARATUS FOR CONTROLLING BLUETOOTH LOAD

• US 20160014547A1
• Filed: 11/06/2014
• Published: 01/14/2016
• Est. Priority Date: 07/11/2014
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Yae, Seong Soo
• Granted Patent: US 9,877,143 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

An in-vehicle Bluetooth load control method and an apparatus using the same are disclosed. A Bluetooth load dispersion method for an in-vehicle head unit includes assigning and retaining priority per profile, executing a first profile. When execution of second to n-th profiles is requested, executing the second to n-th profiles, comparing priority level assigned to the first profile with priority level assigned to the second to n-th profiles, and classifying the profiles as a main service and sub services based on a result of the comparison. Wherein is a natural number equal to or greater than 2 and is a total number of profiles in the plurality of profiles. Consequently, Bluetooth load is effectively controlled in a multi Bluetooth profile environment.

Claims

1. A Bluetooth load dispersion method for an in-vehicle head unit comprising:

assigning and retaining, by a controller, a priority level for each of a plurality of profiles;

executing, by the controller, a first profile of the plurality of profiles;

in response to a request for execution of each of a second to an n-th profile of the plurality of profiles,

executing, by the controller, each of the second to the n-th profiles; and

comparing, by the controller, the priority level assigned to the first profile with the priority level assigned to each of the second to n-th profiles, respectively; and

classifying, by the controller, each of the profiles as a main service or sub services based on a result of the comparison of the priority level, wherein

n is a natural number equal to or greater than 2 and is a total number of profiles in the plurality of profiles.

2. The Bluetooth load dispersion method according to claim 1, further comprising:

classifying, by the controller, the profile having a highest priority level as the main service.

3. The Bluetooth load dispersion method according to claim 2, further comprising:

classifying, by the controller, each of the profiles having second through (n−

1)th priority level as first through (n−

1)th sub services, respectively.

4. The Bluetooth load dispersion method according to claim 3, further comprising:

stopping, by the controller, execution of at least one the first through (n−

1)th subservice in response to the one of the first to the (n−

1)th subservice causing deterioration of the main service.

5. The Bluetooth load dispersion method according to claim 3, further comprising:

providing, by the controller, the first to (n−

1)-th sub services as background services.

6. The Bluetooth load dispersion method according to claim 1, further comprising:

assigning, by the controller, a priority level to at least one of the profiles based on at least one attribute selected from the group consisting of real-time communication, importance, and required service quality level of the respective profiles.

7. The Bluetooth load dispersion method according to claim 6, further comprising:

assigning, by the controller, a higher priority level to a profile that requires real-time communication than a profile that does not require real-time communication.

8. The Bluetooth load dispersion method according to claim 1, further comprising:

distributing, by the controller, available resources to each of the main service and the sub services.

9. The Bluetooth load dispersion method according to claim 8, further comprising:

determining, by the controller, a distribution ratio of the available resources based on required service quality levels for each of the main service and the sub services, respectively.

10. The Bluetooth load dispersion method according to claim 8, further comprising:

distributing, by the controller, the available resources to prevent deterioration of service quality of the main service.

11. The Bluetooth load dispersion method according to claim 1, wherein the profiles include at least one profile selected from the group consisting of a hands-free telephony profile (HFTP), an advanced audio distribution profile (A2DP), a serial port profile (SPP), a phone book access profile (PBAP), and a message access profile (MAP).

12. The Bluetooth load dispersion method according to claim 11, further comprising:

assigning, by the controller, a highest priority to the hands-free telephony profile.

13. A non-transitory computer readable medium containing program instructions executed by a processor, the computer readable medium comprising:

program instructions that assign and retain a priority level for each of a plurality of profiles;

program instructions that execute a first profile of the plurality of profiles;

program instructions that, in response to a request for execution of each of a second to an n-th profile of the plurality of profiles,

execute each of the second to the n-th profiles; and

compare the priority level assigned to the first profile with the priority level assigned to each of the second to n-th profiles, respectively; and

program instructions that classify each of the profiles as a main service or sub services based on a result of the comparison of the priority level, wherein

n is a natural number equal to or greater than 2 and is a total number of profiles in the plurality of profiles.

14. The non-transitory computer readable medium of claim 13, further comprising:

program instructions that classify the profile having a highest priority level as the main service; and

program instructions that classify each of the profiles having second through (n−

1)th priority level as first through (n−

1)th sub services, respectively.

15. The non-transitory computer readable medium of claim 14, further comprising:

program instructions that stop execution of at least one the first through (n−

1)th subservice in response to the one of the first to the (n−

1)th subservice causing deterioration of the main service.

16. The non-transitory computer readable medium of claim 13, further comprising:

program instructions that assign a priority level to at least one of the profiles based on at least one attribute selected from the group consisting of real-time communication, importance, and required service quality level of the respective profiles; and

program instructions that assign a higher priority level to a profile that requires real-time communication than a profile that does not require real-time communication.

17. The non-transitory computer readable medium of claim 13, further comprising:

program instructions that distribute available resources to each of the main service and the sub services;

program instructions that determine a distribution ratio of the available resources based on required service quality levels for each of the main service and the sub services, respectively; and

program instructions that distribute the available resources to prevent deterioration of service quality of the main service.

18. An in-vehicle head unit equipped with a Bluetooth communication function, the head unit including a processor configured to execute the program instructions, the program instructions when executed configured to:

store priority information pre-assigned to each of a plurality of profiles in a predetermined recording region;

execute a first profile;

in response to a request for execution of second to n-th profiles

execute each of the second to n-th profiles, and

compare a priority level assigned to the first profile with priority level assigned to each of the second to n-th profiles; and

classify the profiles as a main service or sub services based on a result of the comparing of the priority level, wherein

n is a natural number equal to or greater than 2 and is a total number of profiles in the plurality of profiles.

19. The in-vehicle head unit according to claim 18, wherein the program instructions when executed are further configured to:

classify as the main service a profile having a highest priority level.

20. The in-vehicle head unit according to claim 19, wherein the program instructions when executed are further configured to:

classify the profiles having the second through (n−

1)th priority level as first to (n−

1)-th sub services, respectively.

21. The in-vehicle head unit according to claim 20, wherein the program instructions when executed are further configured to:

stop execution of at least one of the first to (n−

1)-th sub services causing deterioration of the main service.

22. The in-vehicle head unit according to claim 20, wherein the program instructions when executed are further configured to:

provide the first to (n−

1)-th sub services, respectively, as background services.

23. The in-vehicle head unit according to claim 18, wherein the program instructions when executed are further configured to:

assign the priority levels based on at least one attribute selected from the group consisting of real-time communication, importance, and required service quality level of the respective profiles.

24. The in-vehicle head unit according to claim 23, wherein the program instructions when executed are further configured to:

assign a higher priority level to a profile requiring real-time communication than a profile not requiring real-time communication.

25. The in-vehicle head unit according to claim 18, wherein the program instructions when executed are further configured to:

distribute available resources to each of the main service and the sub services.

26. The in-vehicle head unit according to claim 25, wherein the program instructions when executed are further configured to:

determine a distribution ratio of the available resources based on service quality levels required for each of the main service and the sub services, respectively.

27. The in-vehicle head unit according to claim 25, wherein the program instructions when executed are further configured to:

distribute the available resources to prevent deterioration of the service quality of the main service.

28. The in-vehicle head unit according to claim 25, wherein the available resources include at least one resource selected from the group consisting of CPU resources, memory resources, a speaker, and a microphone.

29. The in-vehicle head unit according to claim 18, wherein the profiles include at least one profile selected from the group consisting of a hands-free telephony profile (HFTP), an advanced audio distribution profile (A2DP), a serial port profile (SPP), a phone book access profile (PBAP), and a message access profile (MAP).

30. The in-vehicle head unit according to claim 29, wherein the program instructions when executed are further configured to:

assign a highest priority level to the hands-free telephony profile.

31. The in-vehicle head unit according to claim 18, wherein the in-vehicle head unit is equipped with a central processing unit (CPU) configured to process data and control signals for use in Bluetooth communication.