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 from a source communication device for initiating a group call directed to a group of target communication devices, the floor-control request being sent by the source communication device on a reverse common channel of the wireless network; and
transmitting wakeup messages to the group of 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 reestablishing dedicated traffic channels for the talker mobile and the dormant listener mobiles advantageously in parallel.
93 Citations
72 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 from a source communication device for initiating a group call directed to a group of target communication devices, the floor-control request being sent by the source communication device on a reverse common channel of the wireless network; and
transmitting wakeup messages to the group of target communication devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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19. 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 from a source communication device for initiating a group call directed to a group of target communication devices, the floor-control request being sent by the source communication device on a reverse common channel of the wireless network; and
transmitting wakeup messages to the group of target communication devices.
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37. A controller for reducing latency in a group communication network, comprising:
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means for receiving a floor-control request from a source communication device for initiating a group call directed to a group of target communication devices, the floor-control request being sent by the source communication device on a reverse common channel of the wireless network; and
means for transmitting wakeup messages to the group of target communication devices.
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55. 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 from a source communication device for initiating a group call directed to a group of target communication devices, the floor-control request being sent by the source communication device on a reverse common channel of the wireless network; and
transmitting wakeup messages to the group of target communication devices. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification