US6512751B1
Expired / Lapsed
US
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Method and system protocols for providing voice, data, and multimedia services in a wireless local loop system
Assignee: Quarterhill Inc
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Filing: 1999-12-01
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Granted: 2003-01-28
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Expires: 2019-12-01
Abstract
Abstract A method and system for implementing various protocols for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) wireless local loop system that utilizes unique embedded concentrated access and embedded data access in a Wireless Local Loop (WLL) is described. The method and system further provides for dynamic pool sizing of the access channels. The protocols support POTS (Plain Old Telephone), ISDN, and direct data service in a point to multi-point configuration. The protocols are inherently flexible so as to provide Enhanced Bandwidth and quality of service (QOS) via CDMA. Channel concatenation (multi-code modulation) provides a multiplicity of channels. The system utilizes frequency division duplex (FDD) operation so as to double capacity. The system further utilizes scaleable architecture for bandwidth expansion and higher data rate services.
Inventors
- 👤 Paul F. Struhsaker
- 👤 Patrick Wilton Quinn
- 👤 Michael J. Easson
- 👤 Thomas C. Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:31
CPC Classifications
H; H04; H04J; H04J13/00; H04J13/0077; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/0457
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
96 words
In a multiple access wireless system where a subscriber transmitter and subscriber receiver have been properly synchronized, a method of authentication of a subscriber comprising the steps of: a base station assigning a temporary slot in a control channel for a subscriber station; the subscriber station being switched to the control channel; the subscriber station receiving the temporary slot assignment in the control channel; the subscriber station sending to the base station an acknowledgement that the temporary slot assignment was received; and the subscriber station and the base station transferring a number of bi-directional authentication messages.
Claim 2
Dependent Claim
96 words
In a multiple access wireless system where a subscriber transmitter and subscriber receiver have been properly synchronized, a method of authentication of a subscriber comprising the steps of: a base station assigning a temporary slot in a control channel for a subscriber station; the subscriber station being switched to the control channel; the subscriber station receiving the temporary slot assignment in the control channel; the subscriber station sending to the base station an acknowledgement that the temporary slot assignment was received; and the subscriber station and the base station transferring a number of bi-directional authentication messages.
Claim 3
Dependent Claim
48 words
The method of claim 1 , wherein the base station posts a temporary slot assignment notificiation in the control channel and wherein a timeout occurs if the subscriber station does not send the acknowledgment within a predetermined amount of time after the temporary slot assignment notification is posted.
Claim 4
Dependent Claim
29 words
The method of claim 1 , wherein a subscriber station is locked out if either the subscriber station or the base station does not receive the bi-directional authentication messages.
Claim 5
Dependent Claim
29 words
The system of claim 1 , wherein the temporary slot assignment becomes permanent when the bidirectional authentication messages are successfully received by the base station and the subscriber station.
Claim 6
Dependent Claim
26 words
The method of claim 1 , wherein the subscriber station sends the acknowledgment of the temporary slot assignment to the base station via the temporary slot.
Claim 7
Independent Claim
149 words
A method for establishing an incoming telecommunication service via a base station to a subscriber, the method comprising the steps of: at the base station, rejecting the telecommunication service when the subscriber is active, and further rejecting the telecommunication service when all traffic channels are in use; and when the subscriber is inactive and all of the traffic channels are not in use, removing at least one channel from a pool of idle traffic channels, sending an incoming telecommunication service message from the base station to the subscriber in a control channel, confirming receipt of the incoming telecommunication service message by the subscriber to the base station in the control channel, switching the subscriber to the removed traffic channel, synchronizing the subscriber station to a radio overhead channel, and transferring a number of bi-directional control messages between the subscriber station and the base station on the removed traffic channel.
Claim 8
Independent Claim
149 words
A method for establishing an incoming telecommunication service via a base station to a subscriber, the method comprising the steps of: at the base station, rejecting the telecommunication service when the subscriber is active, and further rejecting the telecommunication service when all traffic channels are in use; and when the subscriber is inactive and all of the traffic channels are not in use, removing at least one channel from a pool of idle traffic channels, sending an incoming telecommunication service message from the base station to the subscriber in a control channel, confirming receipt of the incoming telecommunication service message by the subscriber to the base station in the control channel, switching the subscriber to the removed traffic channel, synchronizing the subscriber station to a radio overhead channel, and transferring a number of bi-directional control messages between the subscriber station and the base station on the removed traffic channel.
Claim 9
Dependent Claim
22 words
A method as in claim 6 , wherein the confirmation is sent on an available FAST response slot of the control channel.
Claim 10
Dependent Claim
15 words
A method as in claim 6 , wherein the confirmation is sent a second time.
Claim 11
Dependent Claim
24 words
A method as in claim 6 , wherein, after confirmation, the base station initiates control and radio overhead messages on the removed traffic channel.
Claim 12
Dependent Claim
31 words
A method as in claim 6 , further comprising the step of sending a busy signal to a telecommunication network originating the incoming telecommunication service when incoming telecommunication service establishment fails.
Claim 13
Dependent Claim
18 words
A method as in claim 6 , wherein the telecommunication service includes, voice, data, multimedia or video services.
Claim 14
Dependent Claim
28 words
A method as in claim 6 , wherein a plurality of CDMA channels from the pool of idle traffic channels are concatenated into a high data rate hyperchannel.
Claim 15
Dependent Claim
16 words
A method as in claim 6 , wherein the telecommunication service includes local area network services.
Claim 16
Independent Claim
97 words
A method for establishing an outgoing telecommunication service via a base station from a subscriber, the method comprising the steps of: a subscriber station sending a message in a subscriber access channel to a base station that an outgoing telecommunication service is desired; the base station removing at least one traffic channel from a pool of idle traffic channels; a subscriber station switching to a removed traffic channel; the subscriber station synchronizing to a radio overhead channel; and the subscriber station and the base station transferring a number of bi-directional control messages on the removed traffic channel.
Claim 17
Independent Claim
97 words
A method for establishing an outgoing telecommunication service via a base station from a subscriber, the method comprising the steps of: a subscriber station sending a message in a subscriber access channel to a base station that an outgoing telecommunication service is desired; the base station removing at least one traffic channel from a pool of idle traffic channels; a subscriber station switching to a removed traffic channel; the subscriber station synchronizing to a radio overhead channel; and the subscriber station and the base station transferring a number of bi-directional control messages on the removed traffic channel.
Claim 18
Dependent Claim
28 words
The method as in claim 14 , wherein prior to sending a message that an outgoing telecommunication service is desired, the subscriber station is in a standby mode.
Claim 19
Dependent Claim
30 words
The method as in claim 14 , wherein sending a message that an outgoing telecommunication service is desired is performed on a next available slot of the subscriber access channel.
Claim 20
Dependent Claim
21 words
The method as in claim 14 , wherein the base station removes a channel from the pool of idle traffic channels.
Claim 21
Dependent Claim
22 words
The method as in claim 14 , wherein the base station posts a busy message if there are no available traffic channels.
Claim 22
Dependent Claim
19 words
The method as in claim 14 , wherein the base station posts a message that a channel is available.
Claim 23
Dependent Claim
28 words
The method as in claim 14 , wherein the base station and subscriber station transmit messages on the removed traffic channel to set up the outgoing telecommunication service.
Claim 24
Dependent Claim
47 words
The method as in claim 14 , wherein when the base station transmits a message on a removed traffic channel to set up the outgoing telecommunication service and the subscriber station does not respond within a predetermined amount of time, then the outgoing telecommunication service is denied.
Claim 25
Dependent Claim
18 words
A method as in claim 14 , wherein the telecommunication service includes, voice, data, multimedia or video services.
Claim 26
Dependent Claim
28 words
A method as in claim 14 , wherein a plurality of CDMA channels from the pool of idle traffic channels are concatenated into a high data rate hyperchannel.
Claim 27
Dependent Claim
16 words
A method as in claim 14 , wherein the telecommunication service includes local area network services.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-01-27 | 2006-07-29 | 2007-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-27 | 2010-07-29 | 2011-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-27 | 2014-07-29 | 2015-01-28 | $7700.00 | Window Closed / Lapsed |