Patent US5754555A successfully refreshed from Google Patents.
US5754555A
Expired / Lapsed
US
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Subscriber network arrangement for connecting subscribers to a telephone network
Assignee: Nokia Technologies Oy
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Filing: 1994-06-15
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Granted: 1998-05-19
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Expires: 2014-06-15
Abstract
Abstract A subscriber network arrangement for connecting several subscribers to a telephone network, in which the subscriber network includes (a) several subscriber sets and, (b) several subscriber terminals. To one subscriber terminal is connected at least one subscriber set by use of a transmission connection implemented in an electrical form. The network further includes (c) a central unit common to the several subscriber terminals, whereby a time-division data transmission between the several subscriber terminals and the central unit occurs along a common transmission path. To be able to construct the network at costs as low as possible by utilizing the existing transmission capacity as efficiently as possible, a message transmission channel common to all subscriber terminals of the central unit is formed in the same transmission frame as actual payload data in both transmission directions on the common transmission path between the central unit and the subscriber terminals. The channel is disposable by subscriber-specific signalling messages as well as other signalling messages of the network.
Inventors
- 👤 Harri Hurme
- 👤 Juha Heikkila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:44
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04J; H04J14/00; H04J14/08; H04J3/00; H04J3/02; H04J3/06; H04J3/0635; H04J3/0682; H04J3/12; H04N; H04N7/00; H04N7/16; H04N7/173; H04N7/17309
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
227 words
A subscriber network arrangement for connecting subscribers to a telephone network, comprising: a plurality of subscriber sets a plurality of subscriber terminals to each said subscriber terminal there being connected a respective at least one said subscriber set by a transmission connection implemented in an electrical form a central unit common to all of said subscriber terminals, and arranged such that a time-division data transmission between respective ones of said subscriber terminals and said central unit occurs in successive transmission frames, having plural time slots, along a common transmission path in both transmission directions from said central unit and from respective ones of said subscriber terminals; in a transmission direction from the central unit towards said subscriber terminals, a first unidirectional message-based transmission channel being formed in a same transmission frame as actual payload data; in a transmission direction from respective ones of said subscriber terminals towards said central unit, a second unidirectional message-based transmission channel being formed in a same transmission frame as actual payload data, for providing, as a combination of said first and second message-based transmission channels, a two-way message-based transmission channel common to all of said subscriber terminals; and said two-way message-based transmission channel being reserved for different types of system messages for transferring subscriber-specific signalling messages as well as other control messages of said subscriber network through said two-way message-based transmission channel.
Claim 2
Dependent Claim
227 words
A subscriber network arrangement for connecting subscribers to a telephone network, comprising: a plurality of subscriber sets a plurality of subscriber terminals to each said subscriber terminal there being connected a respective at least one said subscriber set by a transmission connection implemented in an electrical form a central unit common to all of said subscriber terminals, and arranged such that a time-division data transmission between respective ones of said subscriber terminals and said central unit occurs in successive transmission frames, having plural time slots, along a common transmission path in both transmission directions from said central unit and from respective ones of said subscriber terminals; in a transmission direction from the central unit towards said subscriber terminals, a first unidirectional message-based transmission channel being formed in a same transmission frame as actual payload data; in a transmission direction from respective ones of said subscriber terminals towards said central unit, a second unidirectional message-based transmission channel being formed in a same transmission frame as actual payload data, for providing, as a combination of said first and second message-based transmission channels, a two-way message-based transmission channel common to all of said subscriber terminals; and said two-way message-based transmission channel being reserved for different types of system messages for transferring subscriber-specific signalling messages as well as other control messages of said subscriber network through said two-way message-based transmission channel.
Claim 3
Dependent Claim
27 words
The network arrangement according to claim 1, wherein: said first message-based transmission channel is formed in one time slot of a frame structure of a multiplexing system.
Claim 4
Dependent Claim
25 words
The network arrangement according to claim 2, wherein: signalling bits transmitted in said one time slot during one multiframe are arranged to form one message.
Claim 5
Dependent Claim
27 words
The network arrangement according to claim 1, wherein: said second message-based transmission channel is formed in a message transmission time slot occurring frame at least once per.
Claim 6
Dependent Claim
31 words
The network arrangement according to claim 4, wherein: said message transmission time slot has a duration which is unequal to the duration of data transmission time slot of a respective frame.
Claim 7
Dependent Claim
39 words
The network arrangement according to claim 5, wherein: in transmissions from respective ones of said subscriber terminals towards said central unit, each transmission is arranged to be synchronized by timing given by a signal transmitted in an opposite direction.
Claim 8
Dependent Claim
58 words
The network arrangement according to claim 1, wherein: said two-way message-based transmission channel arranged to be utilized for decreasing a loop delay by decreasing the relative transmission capacity allocated for signalling so that, transmissions from respective ones of said subscriber terminals towards said central unit, several transmission bursts are generated in a transmission frame per one traffic channel.
Claim 9
Dependent Claim
50 words
The network arrangement according to claim 6, wherein: said two-way message-based transmission channel arranged to be utilized for measuring a loop delay in such a way that said central unit measures transmission path delays from a message sent by a respective said subscriber terminal on said two-way message-based transmission channel.
Claim 10
Dependent Claim
40 words
The network arrangement according to claim 1, wherein: two-way message-based transmission channel arranged to be utilized for implementing a concentration in such a way that said subscriber terminals when respectively in idle state monitor said two-way message-based transmission channel only.
Claim 11
Dependent Claim
34 words
The network arrangement according to claim 9, wherein: in both transmission directions, one part of available time slots is allocated for concentration and another part of time slots is fixedly allocated for predetermined subscribers.
Claim 12
Dependent Claim
32 words
The network arrangement according to claim 9, wherein: time slots adjacent to a respective message transmission time slot are arranged to be used for a temporary expansion of said message-based transmission channel.
Claim 13
Dependent Claim
29 words
The network arrangement according to claim 9, wherein: part of the time slots allocated for concentration are arranged to be used by predetermined ones of said subscriber terminals only.
Claim 14
Dependent Claim
25 words
The network arrangement according to claim 1, wherein: a cable television network provides said to-way message-based transmission channel in at least one said transmission direction.
Claim 15
Dependent Claim
73 words
The network arrangement according to claim 13, wherein: a cable television network provides said two-way message-based transmission channel in both transmission directions, whereby from said central unit to said subscriber terminals are implemented in an upper part of a cable television frequency band in an area of free cable television channels and transmissions from said subscriber terminals to said central unit are implemented in a lower part of said cable television frequency band.
Claim 16
Dependent Claim
23 words
The network arrangement according to claim 1, wherein: an optical network provides said two-way message-based transmission channel in at least one transmission direction.
Claim 17
Dependent Claim
23 words
The network arrangement according to claim 1, wherein: a radio path provides said two-way message-based transmission channel in at least one transmission direction.
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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) | 2001-05-18 | 2001-11-17 | 2002-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-18 | 2005-11-17 | 2006-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-18 | 2009-11-17 | 2010-05-19 | $7700.00 | Window Closed / Lapsed |