METHOD AND SYSTEM FOR CONFIGURABLE CALLING MODE

• US 20080132181A1
• Filed: 05/10/2007
• Published: 06/05/2008
• Est. Priority Date: 11/30/2006
• Status: Abandoned Application

• Current Assignee: Motorola Mobility, Inc. (Lenovo Group Ltd.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: SHEN, YI-ZHE, PICHARDO, LUIS A.
• Application Number:
  US11/747,099
• Publication Number:
  US 20080132181A1
• Time in Patent Office: Days
• US Class Current: 455/90.2
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

A system (100) and method (200) for managing group call is provided. The method can include assigning (210) time windows (140) to a plurality of mobile devices (110) in a group call, and balancing PTT requests (220) among the plurality of mobile devices in accordance with the time windows to reduce talking request contention. The time window can include a talk window 141 and a listen window 142 to identifies whether a mobile device can be in talking mode (620). The method can include randomizing (214) a start of the time windows among the plurality of mobile devices, and staggering (216) time windows devices during a hang-time (370) of the group call. The randomization and staggering can be based on user activity (230) or user preference settings (232). A user interface (500) can allow a user to preview a look and feel of the time window, using haptic representations such as audio, visual, or vibration effect.

Claims

1. A method for managing a push-to-talk (PTT) group call, comprising:

assigning time windows to a plurality of mobile devices in a PTT group call, wherein a time window identifies whether a mobile device is in a talking mode or a listening mode; and

balancing PTT requests among the plurality of mobile devices in accordance with the time windows to reduce talking request contention.

2. The method of claim 1, wherein the step of balancing PTT requests further comprises

for each mobile device, identifying a time window for talking and listening, wherein the time window includes:

a talk window for providing a talking interval; and

a listen window for providing a listening interval,

wherein a mobile device enters the talking mode in response to a PTT request during the talk window.

3. The method of claim 1, further comprising randomizing a start of the time windows among the plurality of mobile devices

4. The method of claim 1, further comprising staggering time windows for the plurality of mobile devices during a hang-time of the PTT group call.

5. The method of claim 1, further comprising dynamically adjusting the time window based on user activity.

6. The method of claim 1, further comprising configuring the time window based on user adjustable settings of the mobile device.

7. The method of claim 5, further comprising:

logging a number of unsuccessful PTT requests to enter talking mode; and

automatically adjusting the time window in accordance with the number of PTT requests.

8. The method of claim 2, further comprising:

changing a PTT status light to coincide with the talk window or the listen window,

wherein at least one PTT status light identifies when the PTT request activates talking mode.

9. The method of claim 1, further comprising:

detecting a user request for configuring the time window;

providing a haptic representation of the talking interval and the listening interval; and

adjusting the time window in accordance with user feedback, wherein a haptic representation is an audio, visual, or vibration effect.

10. The method of claim 1, establishing a plurality of time windows during a hang-time of the PTT group call.

11. A system for push-to-talk (PTT) group call, comprising:

a plurality of mobile devices each having a PTT key to make a PTT request, the plurality of mobile devices each having a controller that enforces a time window for a PTT request, the time window identifying a talking interval and a listening interval,

wherein a first mobile device generates the time windows for the plurality of mobile devices and balances multiple PTT requests among the plurality of mobile devices in view of the time windows to reduce talking request contention during the PTT group call.

12. The system of claim 11, wherein the first mobile device includes

a controller for identifying mobile devices in the PTT group call and determining when a mobile device is in a talking mode or a listening mode;

and

a timer for tracking talking windows and listening windows of the plurality of mobile devices.

13. The system of claim 12, wherein the controller staggers time windows during a hang-time of the PTT group call such that a number of talking intervals is randomly distributed across a duration of the PTT group call.

14. The system of claim 12, wherein the controller automatically adjusts the time windows for plurality of mobile devices based on user activity or user preference settings.

15. The system of claim 14, wherein the controller changes an order of the talking interval and the listening interval in a time window to increase talking mode probability.

16. A mobile device, comprising

a controller for sending and receiving audio data during a push-to-talk (PTT) group call;

a push-to-talk (PTT) key operatively coupled to the controller for activating a talking mode; and

a controller operatively coupled to the PTT key and the controller for controlling when the PTT key activates the talking mode in accordance with a time window.

17. The mobile device of claim 16, further comprising:

a timer communicatively coupled to the controller for establishing a time window, the time window having a talking interval and a listening interval,

wherein the PTT key activates the talking mode when the timer is within the talking interval, and disables talking mode when the timer is within the listening interval.

18. The mobile device of claim 16, further comprising:

a user interface for adjusting the time window and saving user preference settings associated with the adjusting,

wherein the user interface provides a haptic representation of the time window during the adjusting, wherein the haptic representation is an audio, visual, or vibration effect.

19. The mobile device of claim 18, wherein a visual representation is presented through a back light, such that a first illumination of the back light identifies when a user can enter talking mode, and a second illumination of the back light identifies when a user cannot enter talking mode.

20. The mobile device of claim 18, wherein the user interface presents an in-call screen during the PTT group call having icons or messages that identify when a PTT request activates talking mode.