Controller for reducing latency in a group dormancy-wakeup process in a group communication network
First Claim
1. In a controller, a method for reducing latency in a group communication network, the method comprising:
- receiving a floor-control request in short data burst (SDB) form from a dormant source communication device for initiating a group call directed to a group of dormant target communication devices, the floor-control request being sent by the dormant source communication device on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel; and
transmitting wakeup messages to the group of dormant target communication devices.
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Abstract
A method and apparatus for reducing latency in a group communication network provides for a significant reduction in the actual total dormancy wakeup time and the PTT latency by exchanging group call signaling even when mobiles are dormant and no traffic channel is active. The method and apparatus provides for exchanging the group call signaling through the use of the short data burst (SDB) message signaling. The method and apparatus provides for re-establishing dedicated traffic channels for the talker mobile and the dormant listener mobiles advantageously in parallel.
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Citations
36 Claims
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1. In a controller, a method for reducing latency in a group communication network, the method comprising:
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receiving a floor-control request in short data burst (SDB) form from a dormant source communication device for initiating a group call directed to a group of dormant target communication devices, the floor-control request being sent by the dormant source communication device on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel; and
transmitting wakeup messages to the group of dormant target communication devices. - View Dependent Claims (2, 3, 4)
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5. In a controller, a computer-readable medium embodying a method for reducing latency in a group communication network, the method comprising:
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receiving a floor-control request in short data burst (SDB) form from a dormant source communication device for initiating a group call directed to a group of dormant target communication devices, the floor-control request being sent by the dormant source communication device on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel and radio link protocol; and
transmitting wakeup messages to the group of dormant target communication devices. - View Dependent Claims (6, 7, 8)
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9. A controller for reducing latency in a group communication network, comprising:
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means for receiving a floor-control request in short data burst (SDB) form from a dormant source communication device for initiating a group call directed to a group of dormant target communication devices, the floor-control request being sent by the dormant source communication device on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel; and
means for transmitting wakeup messages to the group of dormant target communication devices. - View Dependent Claims (10, 11, 12)
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13. A controller for reducing latency in a group communication network, the communication device comprising:
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a receiver to receive information over the network;
a transmitter to transmit information over the network; and
a processor communicatively coupled with the receiver and the transmitter, the processor being capable of;
receiving a floor-control request in short data burst (SDB) form from a dormant source communication device for initiating a group call directed to a group of dormant target communication devices, the floor-control request being sent by the dormant source communication device on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel; and
transmitting wakeup messages to the group of dormant target communication devices. - View Dependent Claims (14, 15, 16)
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17. In a communication device, a method for reducing latency in a group communication network, the method comprising:
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receiving an indication from a user for initiating a group call directed to a group of dormant target communication devices; and
transmitting a floor-control request in short data burst (SDB) form to a controller for initiating the group call, the floor-control request being sent on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel. - View Dependent Claims (18, 19, 20, 21)
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22. In a communication device, a computer-readable medium embodying a method for reducing latency in a group communication network, the method comprising:
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receiving an indication from a user for initiating a group call directed to a group of dormant target communication devices; and
transmitting a floor-control request in short data burst (SDB) form to a controller for initiating the group call, the floor-control request being sent on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel. - View Dependent Claims (23, 24, 25, 26)
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27. A communication device for reducing latency in a group communication network, comprising:
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means for receiving an indication from a user for initiating a group call directed to a group of dormant target communication devices; and
means for transmitting a floor-control request in short data burst (SDB) form to a controller for initiating the group call, the floor-control request being sent on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel. - View Dependent Claims (28, 29, 30, 31)
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32. A communication device for reducing latency in a group communication network, the communication device comprising:
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a receiver to receive information over the network;
a transmitter to transmit information over the network; and
a processor communicatively coupled with the receiver and the transmitter, the processor being capable of;
receiving an indication from a user for initiating a group call directed to a group of dormant target communication devices; and
transmitting a floor-control request in short data burst (SDB) form to a controller for initiating the group call, the floor-control request being sent on a reverse common channel of the wireless network, the wireless network having released its dedicated traffic channel. - View Dependent Claims (33, 34, 35, 36)
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Specification