Patent US6738617B2 successfully refreshed from Google Patents.
US6738617B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for reducing latency in a group dormancy-wakeup process in a group communication network
Assignee: Qualcomm Inc
•
Filing: 2001-12-04
•
Granted: 2004-05-18
•
Expires: 2021-12-04
Abstract
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.
Inventors
- 👤 Eric Rosen
- 👤 Mark Maggenti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:53
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04M; H04M3/00; H04M3/42; H04B; H04B7/00; H04B7/24; H04B7/26; H04M3/42382; H04M3/56; H04W4/00; H04W4/06; H04W4/10; H04W52/0209; H04W52/0212; H04W52/0219; H04W84/00; H04W84/02; H04W84/04; H04W84/08; H04M2203/00; H04M2203/20; H04M2203/2044; H04M3/563; H04M3/566; H04W52/0225; H04W52/0229; H04W76/00; H04W76/10; H04W76/20; H04W76/40; H04W76/45; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
82 words
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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 2
Dependent Claim
82 words
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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 3
Dependent Claim
15 words
The method of claim 1 , wherein the triggering is in parallel with the transmitting.
Claim 4
Dependent Claim
24 words
The method of claim 1 , further including: buffering media received from the source communication device for transmission after the traffic channel is re-established.
Claim 5
Dependent Claim
23 words
The method of claim 1 , further including: triggering each of the group of target communication devices to renegotiate a radio link protocol.
Claim 6
Dependent Claim
15 words
The method of claim 4 , wherein the triggering is in parallel with the transmitting.
Claim 7
Dependent Claim
24 words
The method of claim 1 , further including transmitting a response to the floor-control request on a forward common channel of the wireless network.
Claim 8
Dependent Claim
23 words
The method of claim 6 , wherein the transmitting includes transmitting the response on a forward paging channel (F-PCH) of the wireless network.
Claim 9
Dependent Claim
24 words
The method of claim 6 , wherein the transmitting includes transmitting the response on a forward common control channel (F-CCCH) of the wireless network.
Claim 10
Dependent Claim
19 words
The method of claim 6 , wherein the transmitting includes transmitting the response in short data burst (SDB) form.
Claim 11
Dependent Claim
86 words
In a controller, a computer-readable medium embodying 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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 12
Dependent Claim
86 words
In a controller, a computer-readable medium embodying 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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 13
Dependent Claim
16 words
The computer-readable medium of claim 10 , wherein the triggering is in parallel with the transmitting.
Claim 14
Dependent Claim
28 words
The computer-readable medium of claim 10 , wherein the method further includes buffering media received from the source communication device for transmission after the traffic channel is re-established.
Claim 15
Dependent Claim
27 words
The computer-readable medium of claim 10 , wherein the method further includes triggering each of the group of target communication devices to renegotiate a radio link protocol.
Claim 16
Dependent Claim
16 words
The computer-readable medium of claim 10 , wherein the triggering is in parallel with the transmitting.
Claim 17
Dependent Claim
28 words
The computer-readable medium of claim 10 , wherein the method further includes transmitting a response to the floor-control request on a forward common channel of the wireless network.
Claim 18
Dependent Claim
24 words
The computer-readable medium of claim 15 , wherein the transmitting includes transmitting the response on a forward paging channel (F-PCH) of the wireless network.
Claim 19
Dependent Claim
25 words
The computer-readable medium of claim 15 , wherein the transmitting includes transmitting the response on a forward common control channel (F-CCCH) of the wireless network.
Claim 20
Dependent Claim
20 words
The computer-readable medium of claim 15 , wherein the transmitting includes transmitting the response in short data burst (SDB) form.
Claim 21
Dependent Claim
83 words
A controller for reducing latency in a group communication network, comprising: 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; means for transmitting wakeup messages to the group of target communication devices; and means for triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 22
Dependent Claim
83 words
A controller for reducing latency in a group communication network, comprising: 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; means for transmitting wakeup messages to the group of target communication devices; and means for triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 23
Dependent Claim
15 words
The controller of claim 19 , wherein the triggering is in parallel with the transmitting.
Claim 24
Dependent Claim
26 words
The controller of claim 19 , further including: means for buffering media received from the source communication device for transmission after the traffic channel is re-established.
Claim 25
Dependent Claim
25 words
The controller of claim 19 , further including: means for triggering each of the group of target communication devices to renegotiate a radio link protocol.
Claim 26
Dependent Claim
15 words
The controller of claim 22 , wherein the triggering is in parallel with the transmitting.
Claim 27
Dependent Claim
26 words
The controller of claim 19 , further including means for transmitting a response to the floor-control request on a forward common channel of the wireless network.
Claim 28
Dependent Claim
27 words
The controller of claim 24 , wherein the means for transmitting includes means for transmitting the response on a forward paging channel (F-PCH) of the wireless network.
Claim 29
Dependent Claim
28 words
The controller of claim 24 , wherein the means for transmitting includes means for transmitting the response on a forward common control channel (F-CCCH) of the wireless network.
Claim 30
Dependent Claim
23 words
The controller of claim 24 , wherein the means for transmitting includes means for transmitting the response in short data burst (SDB) form.
Claim 31
Dependent Claim
112 words
A controller for reducing latency in a group communication network, the communication device comprising: 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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 32
Dependent Claim
112 words
A controller for reducing latency in a group communication network, the communication device comprising: 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; transmitting wakeup messages to the group of target communication devices; and triggering each of the group of target communication devices to re-establish a traffic channel.
Claim 33
Dependent Claim
15 words
The controller of claim 28 , wherein the triggering is in parallel with the transmitting.
Claim 34
Dependent Claim
28 words
The controller of claim 28 , the processor further being capable of: buffering media received from the source communication device for transmission after the traffic channel is re-established.
Claim 35
Dependent Claim
27 words
The controller of claim 28 , the processor further being capable of: triggering each of the group of target communication devices to renegotiate a radio link protocol.
Claim 36
Dependent Claim
15 words
The controller of claim 31 , wherein the triggering is in parallel with the transmitting.
Claim 37
Dependent Claim
28 words
The controller of claim 28 , the processor further being capable of transmitting a response to the floor-control request on a forward common channel of the wireless network.
Claim 38
Dependent Claim
23 words
The controller of claim 33 , wherein the transmitting includes transmitting the response on a forward paging channel (F-PCH) of the wireless network.
Claim 39
Dependent Claim
24 words
The controller of claim 33 , wherein the transmitting includes transmitting the response on a forward common control channel (F-CCCH) of the wireless network.
Claim 40
Dependent Claim
19 words
The controller of claim 33 , wherein the transmitting includes transmitting the response in short data burst (SDB) form.
References Cited (Backward Citations)
US5014345A
Cited
US5831974A
Cited
US6115388A
Cited
US6373829B1
Cited
US20010024431A1
Cited
US6477150B1
Cited
US6308079B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-05-18 | 2007-11-17 | 2008-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-05-18 | 2011-11-17 | 2012-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-05-18 | 2015-11-17 | 2016-05-18 | $7700.00 | Window Closed / Lapsed |