Method for Implementing Radiophone Based Conference Call and Dynamic Grouping

• US 20110205939A1
• Filed: 12/12/2008
• Published: 08/25/2011
• Est. Priority Date: 12/12/2008
• Status: Active Grant

• Current Assignee: Hytera Communications Corp. Ltd.
• Original Assignee: Hytera Communications Corp. Ltd.
• Inventors: Yu, Yang, Chia, Hansiong Samuel
• Granted Patent: US 8,982,736 B2
• Time in Patent Office: Days
• US Class Current: 370/261
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers

Abstract

The present invention provides a method for implementing a radiophone based conference call and dynamic grouping, which generally includes selecting a dynamic grouping function and members of an intended group through a man-machine interface of a radiophone, generating a control packet in a coding format and an extensible interface, the coding format and the extensible interface being inherent to a preset protocol stack module, and then transmitting the control frame in a control frame to a corresponding receiving end, and the receiving end upon reception of the control frame decodes the control frame and initiates a frequency modification module to modify frequency modification information by adding the group ID of the intended group. The radiophone in the present invention can perform a scheduling function, and time can be saved in an emergency for rapid and convenient dealing with an incident.

Claims

1. A method for implementing a radiophone based conference call, wherein when a conference call is required for one or more radiophones,

the method comprises the steps at a transmitting end of a group:

a. selecting a group ID of an intended group and a group ID of an intended temporary conference call through a man-machine interface of the transmitting end;

b. writing the ID of the transmitting end, the group ID of the intended group and the group ID of the temporary conference call into a preset protocol stack module, and generating a control packet in a coding format and via an extensible interface, the coding format and the extensible interface being inherent to the preset protocol stack module; and

c. transmitting the control packet to a corresponding receiving end in a control frame; and

the method comprises the steps at one or more receiving ends of the intended group;

d. decoding the control frame transmitted from the transmitting end;

e. determining whether the present receiving end is subject to an operation from the control frame, and if it is determined that the present receiving end is subject to an operation from the control frame, going to step e;

otherwise, skipping the control frame and ending; and

f. initiating a frequency modification module to modify frequency modification information by adding the group ID of the temporary conference call.

2. The method for implementing a radiophone based conference call according to claim 1, wherein after the step c, the method further comprises:

retransmitting the control frame to the corresponding receiving end if the transmitting end fails to receive a response returned from the receiving end in a preset period of time;

or

transmitting the control frame to a next receiving end if the transmitting end receives a response returned from the corresponding receiving end in a preset period of time or if the number of retransmissions exceeds a preset number of retransmissions.

3. The method for implementing a radiophone based conference call according to claim 1, further comprising:

displaying a condition of setting up the temporary conference call on the man-machine interface of the transmitting end, determining whether all users have been included in the new group of the temporary conference call; and

if all users have been included in the new group of the temporary conference call, it indicating a success of setting up the new group among the radiophones;

otherwise, transmitting the control frame to a user who has not been included in the new group of the temporary conference call, and returning to the step c.

4. The method for implementing a radiophone based conference call according to claim 1, wherein before the step e, the method further comprises:

determining whether the control frame is a control frame of the temporary conference call, and if the control frame is a control frame of the temporary conference call, going to the step e;

otherwise, ending.

5. The method for implementing a radiophone based conference call according to claim 1, wherein after terminating the temporary conference call, the method further comprises:

transmitting, by the transmitting end, a teardown data packet to respective members of the intended group to remove the group ID of the temporary conference call from the radiophones participating in the temporary conference call; and

tearing down the new group automatically by one of the members if the member fails to receive the teardown data packet and the new group of the temporary conference call keeps inactive for a preset period of time.

11. The method for implementing a radiophone based conference call according to claim 2, further comprising:

displaying a condition of setting up the temporary conference call on the man-machine interface of the transmitting end, determining whether all users have been included in the new group of the temporary conference call; and

if all users have been included in the new group of the temporary conference call, it indicating a success of setting up the new group among the radiophones;

otherwise, transmitting the control frame to a user who has not been included in the new group of the temporary conference call, and returning to the step c.

6. A method for implementing a radiophone based dynamic grouping, wherein when the dynamic grouping is to be performed on one or more radiophones belonging to different groups,

the method comprises the steps at a transmitting end of the group:

A. selecting a type and a group ID of the intended group and a group ID of a dynamic group through a man-machine interface of the transmitting end;

B. writing the ID of the transmitting end, the group ID of the intended group and the group ID of the dynamic group into a preset protocol stack module, and generating a control packet in a coding format and via an extensible interface, the coding format and the extensible interface being inherent to the preset protocol stack module; and

C. transmitting the control packet to a corresponding receiving end in a control frame; and

the method comprises the steps at one or more receiving ends of the intended group;

D. decoding the control frame transmitted from the transmitting end;

E. determining whether the present receiving end is subject to an operation from the control frame, and if it is determined that the present receiving end is subject to an operation from the control frame, going to the step E;

otherwise, skipping the control frame and ending; and

F. initiating a frequency modification module to modify frequency modification information by adding the group ID of the dynamic group.

7. The method for implementing a radiophone based dynamic grouping according to claim 6, wherein after the step C, the method further comprises:

transmitting, by the transmitting end, the control frame periodically to join a subsequent radiophone into the dynamic group.

8. The method for implementing a radiophone based dynamic grouping according to claim 6, wherein before the step E, the method further comprises:

determining whether the control frame is a control frame of the dynamic group, and if it is determined that the control frame is a control frame of the dynamic group, going to the step E;

otherwise, ending.

9. The method for implementing a radiophone based dynamic grouping according to claim 6, wherein after terminating the dynamic grouping, the method further comprises:

transmitting, by the transmitting end, a teardown data packet to respective members of the intended group at an interval of a predetermined number of minutes for a preset number of transmissions to remove the group ID of the dynamic group from the radiophones in the dynamic group;

or

tearing down automatically by one of the radiophones the dynamic group if the radiophone fails to receive the teardown data packet and the dynamic group keeps inactive for a preset period of time.

10. The method for implementing a radiophone based dynamic grouping according to claim 6, further comprising:

setting an identify verification code, and encrypting the control frame.

12. The method for implementing a radiophone based dynamic grouping according to claim 7, wherein before the step E, the method further comprises:

determining whether the control frame is a control frame of the dynamic group, and if it is determined that the control frame is a control frame of the dynamic group, going to the step E;

otherwise, ending.