US5598412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching arrangement for wireless terminals connected to a switch via a digital protocol channel
Assignee: Avaya Inc
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Filing: 1995-10-24
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Granted: 1997-01-28
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Expires: 2015-10-24
Abstract
Abstract A digital port includes a passive bus and, at least, the registration and call transfer features associated with a switch to provide cellular wireless capability. The passive bus allows a base station to be connected to the channel and thereby interface a plurality of wireless terminals to the switch. While only some of the wireless terminals in the neighborhood of a base station can be active concurrently (as is the case in all wireless systems) by way of a digital communication channel that is included in the passive bus, the switch can register and, hence, keep track of, a larger number of wireless terminals that are present in the base station's neighborhood. The passive bus also includes at least one circuit switched channel to allow communication with one or more wired or wireless terminals.
Inventors
- 👤 Gary L. Griffith
- 👤 Michael L. Nienaber
- 👤 Norman W. Petty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04W; H04W84/00; H04W84/02; H04W84/10; H04W84/16; H04W88/00; H04W88/14
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
97 words
A switch arrangement comprising: a switch including a plurality of ports and means for coupling signals between a pair of said ports, where each of the ports includes at least one circuit switched information channel and at least one packet switched channel, said switch for providing communications features usable by wired terminals to any terminals that are connected to said ports; and a wireless base station connected to one of said ports, said wireless base station using only said features usable by wired terminals in its interactions with the switch to provide wireless communications to wireless terminals.
Claim 2
Dependent Claim
97 words
A switch arrangement comprising: a switch including a plurality of ports and means for coupling signals between a pair of said ports, where each of the ports includes at least one circuit switched information channel and at least one packet switched channel, said switch for providing communications features usable by wired terminals to any terminals that are connected to said ports; and a wireless base station connected to one of said ports, said wireless base station using only said features usable by wired terminals in its interactions with the switch to provide wireless communications to wireless terminals.
Claim 3
Dependent Claim
30 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports supports control information associated with a user of the circuit switched channel of the port.
Claim 4
Dependent Claim
19 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries call setup information.
Claim 5
Dependent Claim
19 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries call take-down information.
Claim 6
Dependent Claim
19 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries call hand-off information.
Claim 7
Dependent Claim
20 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries base station ID information.
Claim 8
Dependent Claim
19 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries wireless ID information.
Claim 9
Dependent Claim
20 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries call feature activation information.
Claim 10
Dependent Claim
19 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries switch ID information.
Claim 11
Dependent Claim
18 words
The arrangement of claim 1 wherein the packet switched channel of each of said ports carries user data.
Claim 12
Dependent Claim
22 words
The arrangement of claim 1 wherein the signal format between the switch and the wireless base station is the ISDN signal format.
Claim 13
Dependent Claim
23 words
The arrangement of claim 1 wherein the signal format between the switch and the wireless base station is the ISDN BRI signal format.
Claim 14
Dependent Claim
23 words
The arrangement of claim 1 wherein the signal format between the switch and the wireless base station is the ISDN PRI signal format.
Claim 15
Dependent Claim
41 words
The arrangement of claim 1 wherein the signal format between the switch and the wireless base station is the ISDN 2B+D signal format, where D is the packet switched channel and each of the B channels is a circuit switched channel.
Claim 16
Dependent Claim
22 words
The arrangement of claim 1 wherein the packet switched channel communicates through the wireless base station with a plurality of wireless terminals.
Claim 17
Dependent Claim
32 words
The arrangement of claim 2 where the packet switched channel communicates through the base station with a plurality of wireless terminals, which plurality is greater than the number of circuit switched channels.
Claim 18
Dependent Claim
60 words
The switch arrangement of claim 1 wherein: the plurality of ports of the switch are digital ports and the switch provides communication features usable by digital wired terminals; and the wireless base station employs a digital communications protocol for interaction with the switch and uses only said features usable by the digital wired terminals in its interactions with the switch.
Claim 19
Dependent Claim
24 words
The switch arrangement of claim 17 wherein: the wireless base station uses a terminal registration feature of the switch for tracking the wireless terminals.
Claim 20
Dependent Claim
36 words
The switch arrangement of claim 17 wherein: the wireless base station uses at least one of a conference, a call transfer, and a bridging feature of the switch for handing-off wireless calls between the wireless terminals.
Claim 21
Dependent Claim
23 words
The switch arrangement of claim 1 wherein: the wireless base station is connected to said one of said ports by a passive bus.
Claim 22
Dependent Claim
14 words
The switch arrangement of claim 20 wherein: the passive bus comprises an ISDN link.
Claim 23
Dependent Claim
139 words
A wireless base station for connection to a port of a switch that includes a plurality of the ports and means for coupling signals between a pair of said ports, each of the ports including at least one circuit switched information channel and at least one packet switched channel, and wherein the switch provides communications features usable by wired terminals to any terminals that are connected to said ports, the wireless base station comprising: means for connecting the wireless base station to one of said ports; and means, connected to the one of said ports by said connecting means, for interacting with the switch on behalf of the wireless base station and using only said features usable by wired terminals in its interactions with the switch to enable the wireless base station to provide wireless communications to wireless terminals.
Claim 24
Dependent Claim
139 words
A wireless base station for connection to a port of a switch that includes a plurality of the ports and means for coupling signals between a pair of said ports, each of the ports including at least one circuit switched information channel and at least one packet switched channel, and wherein the switch provides communications features usable by wired terminals to any terminals that are connected to said ports, the wireless base station comprising: means for connecting the wireless base station to one of said ports; and means, connected to the one of said ports by said connecting means, for interacting with the switch on behalf of the wireless base station and using only said features usable by wired terminals in its interactions with the switch to enable the wireless base station to provide wireless communications to wireless terminals.
Claim 25
Dependent Claim
59 words
The wireless base station of claim 22 for connection to a digital port of the switch, wherein the switch provides communication features usable by digital wired terminals, wherein: the means for interacting employs a digital communications protocol for interacting with the switch and uses only said features usable by the digital wired terminals in its interactions with the switch.
Claim 26
Dependent Claim
25 words
The wireless base station of claim 23 wherein: the means for interacting use a terminal registration feature of the switch for tracking the wireless terminals.
Claim 27
Dependent Claim
37 words
The wireless base station of claim 23 wherein: the means for interacting use at least one of a conference, a call transfer, and a bridging feature of the switch for handing-off wireless calls between the wireless terminals.
Claim 28
Dependent Claim
25 words
The wireless base station of claim 22 wherein: the connecting means connect the wireless base station to one of said ports via a passive bus.
Claim 29
Dependent Claim
15 words
The wireless base station of claim 26 wherein: the passive bus comprises an ISDN link.
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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) | 2000-01-28 | 2000-07-29 | 2001-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-28 | 2004-07-29 | 2005-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-28 | 2008-07-29 | 2009-01-28 | $7700.00 | Window Closed / Lapsed |