US5521906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for updating carrier channel allocations
Assignee: Apple Inc
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Filing: 1995-01-26
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Granted: 1996-05-28
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Expires: 2015-01-26
Abstract
Abstract In a communication system that utilizes DMT technology to couple a primary site (102) to a plurality of secondary sites (104-108), carrier channel allocations may be updated as follows. At periodic intervals, the primary site requests updating bit loading information from the secondary sites. Upon receiving the updated bit loading information, the primary site (102) determines an updated call bit loading table for each active call. From this, the primary site (102) determines whether current carrier channel allocation provides sufficient bandwidth. When the current carrier channel allocation does not provide the sufficient bandwidth, the primary site modifies the current carrier channel allocation to meet the bandwidth requirements.
Inventors
- 👤 Gary W. Grube
- 👤 Timothy W. Markison
- 👤 Matthew A. Pendleton
- 👤 Mathew A. Rybicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:03
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/0001; H04L5/0003; H04L5/0005; H04L5/0007; H04L5/003; H04L5/0044; H04L5/0046; H04L5/0058; H04L5/0064; H04L5/0078; H04L5/0087; H04L5/0091; H04L5/0094
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
80 words
A method of updating carrier channel allocation, the method comprising the steps of: a) receiving updated bit loading information from a plurality of sites; for each call allocation; b) determining an updated call bit loading table; c) determining, based on the updated call bit loading table, whether current carrier channel allocation provides sufficient bandwidth; and d) when the current carrier channel allocation does not provide the sufficient bandwidth, modifying the current carrier channel allocation when carrier channel resources are available.
Claim 2
Independent Claim
80 words
A method of updating carrier channel allocation, the method comprising the steps of: a) receiving updated bit loading information from a plurality of sites; for each call allocation; b) determining an updated call bit loading table; c) determining, based on the updated call bit loading table, whether current carrier channel allocation provides sufficient bandwidth; and d) when the current carrier channel allocation does not provide the sufficient bandwidth, modifying the current carrier channel allocation when carrier channel resources are available.
Claim 3
Dependent Claim
25 words
The method of claim 1, wherein step (a) further comprises receiving the updated bit loading information in a form of updated site bit loading tables.
Claim 4
Dependent Claim
25 words
The method of claim 2, wherein step (b) further comprises utilizing the updated site bit loading tables to create the updated call bit loading table.
Claim 5
Dependent Claim
22 words
The method of claim 1, wherein step (a) further comprises receiving a bit loading change message as the updated bit loading information.
Claim 6
Dependent Claim
55 words
The method of claim 4, wherein step (b) further comprises: generating, for each site involved in a particular call, a new site bit loading table based on the bit loading change message; and from the new site bit loading table of each site involved in the particular call, generating the updated call bit loading table.
Claim 7
Dependent Claim
79 words
The method of claim 1, wherein step (b) further comprises: accessing a site location database, wherein the site location database stores, for a particular call, sites of the plurality of sites that support the particular call; generating, for each site that support the particular call, an updated site bit loading table to produces a set of updated site bit loading tables; and from the set of the updated site bit loading tables, producing the updated call bit loading table.
Claim 8
Dependent Claim
51 words
The method of claim 6, wherein the step of producing the updated call bit loading table further comprises: for each carrier channel entry in the set of the updated site bit loading tables, comparing bit loading; and entering lowest bit loading of the comparing into the updated call bit loading table.
Claim 9
Dependent Claim
106 words
The method of claim 1, wherein step (c) further comprises: accessing a call bit rate database to determine bit loading requirements for a particular call; accessing a channel allocation database to identify at least one carrier channel allocated to the particular call; from the updated call bit loading table, determining bit loading of the at least one carrier channel; comparing the bit loading of the at least one carrier channel with the bit loading requirements; and when the bit loading for the at least one carrier channel is less than the bit loading requirements, determining that the current carrier channel allocation does not provide sufficient bandwidth.
Claim 10
Dependent Claim
71 words
The method of claim 8 further comprises: when the bit loading for the at least one carrier channel is greater than the bit loading, determining that the current carrier channel allocation provides the sufficient bandwidth; adjusting the bit loading of the at least one carrier channel to match the bit loading requirements; and indicating in the channel allocation database a number of bit reduction for the at least one carrier channel.
Claim 11
Dependent Claim
35 words
The method of claim 8 further comprises, when the bit loading for the at least one carrier channel is greater than the bit loading, determining that the current carrier channel allocation provides the sufficient bandwidth.
Claim 12
Dependent Claim
106 words
The method of claim 8, wherein step (d) further comprises: accessing the carrier channel allocation database to determine a bit reduction for the at least one carrier channel; when the bit reduction is at least one bit, determining whether the bit reduction plus the bit loading for the at least one carrier channel is equal to or greater than the bit loading requirements; and when the bit reduction plus the bit loading for the at least one carrier channel is equal to or greater than the bit loading requirements, increasing the bit loading of the at least one carrier channel to match the bit loading requirements.
Claim 13
Dependent Claim
53 words
The method of claim 11 further comprises, when the bit reduction plus the bit loading for the at least one carrier channel is equal to or greater than the bit loading requirements, reducing the bit reduction by a number of bits added to the bit loading of the at least one carrier channel.
Claim 14
Dependent Claim
147 words
The method of claim 11 further comprises, when the bit reduction plus the bit loading for the at least one carrier channel is less than the bit loading requirements; adding the bit reduction to the bit loading of the at least one carrier channel to produce updated bit loading of the at least one carrier channel; determining a bit loading difference between the updated bit loading of the at least one carrier channel and the bit loading requirements; when the bit loading difference is greater than one bit, determining, from the carrier channel allocation database, whether at least one available carrier channel has a bit loading at least equal to the bit loading difference; and when the at least one available carrier channel has the bit loading at least equal to the bit loading difference, allocating the at least one available carrier channel to the particular call.
Claim 15
Dependent Claim
75 words
The method of claim 13 further comprises, when the bit loading difference is one bit; determining, from the carrier channel allocation database, whether an available carrier channel has a bit loading of at least two bits; when the available carrier channel has the bit loading of at least two bits, allocating the available carrier channel to the particular call; and reducing the updated bit loading of the at least one carrier channel by one bit.
Claim 16
Dependent Claim
103 words
The method of claim 11, further comprises, when the bit reduction is zero; determining a bit loading difference between the bit loading of the at least one carrier channel and the bit loading requirements; when the bit loading difference is greater than one bit, determining, from the carrier channel allocation database, whether at least one available carrier channel has a bit loading at least equal to the bit loading difference; and when the at least one available carrier channel has the bit loading at least equal to the bit loading difference, allocating the at least one available carrier channel to the particular call.
Claim 17
Dependent Claim
45 words
The method of claim 1, wherein step (d) further comprises: determining from a carrier channel allocation database whether additional bits are available for allocation to a particular call; and when the additional bits are available for allocation, determining that the carrier channel resources are available.
Claim 18
Dependent Claim
28 words
The method of claim 16 further comprises, when additional bits are not available for allocation to the particular call, determining that the carrier channel resources are not available.
Claim 19
Independent Claim
88 words
A method for updating carrier channel allocation for an infrastructure control channel, the method comprising the steps of: a) obtaining updated bit loading information from a plurality of sites; b) determining an updated control channel bit loading table from the updated bit loading information; c) determining, based on the updated control channel bit loading table, whether current carrier channel allocation to the infrastructure control channel has reduced bit loading; and d) when the current carrier channel allocation has the reduced bit loading, modifying the current carrier channel allocation.
Claim 20
Independent Claim
88 words
A method for updating carrier channel allocation for an infrastructure control channel, the method comprising the steps of: a) obtaining updated bit loading information from a plurality of sites; b) determining an updated control channel bit loading table from the updated bit loading information; c) determining, based on the updated control channel bit loading table, whether current carrier channel allocation to the infrastructure control channel has reduced bit loading; and d) when the current carrier channel allocation has the reduced bit loading, modifying the current carrier channel allocation.
Claim 21
Dependent Claim
124 words
The method of claim 18, wherein step (c) further comprises: comparing bit loading of a carrier channel entry in a current control channel bit loading table with the bit loading of a corresponding carrier channel entry in the updated control channel bit loading table; when the bit loading of the corresponding carrier channel entry differs from the bit loading of the carrier channel entry in the current control channel bit loading table, identifying a difference; when the difference is for a carrier channel allocated to the infrastructure control channel, determining whether the difference is an increase bit loading or a decrease bit loading; and when the difference is the decrease bit loading, determining that the current carrier channel allocation has the reduced bit loading.
Claim 22
Dependent Claim
60 words
The method of claim 19, wherein step (d) further comprises: determining whether the carrier channel allocated to the infrastructure control channel has an affiliated bit reduction greater than zero bits; and when the affiliated bit reduction is greater than zero, increasing the bit loading of the carrier channel by the affiliated bit reduction to modify the current carrier channel allocation.
Claim 23
Dependent Claim
49 words
The method of claim 20 further comprises, when the affiliated bit reduction is not greater than zero bits; determining whether another carrier channel is available; when the another carrier channel is available, allocating the another carrier channel to the infrastructure control channel; and updating a carrier channel allocation database.
Claim 24
Dependent Claim
44 words
The method of claim 21 further comprises, when another carrier channel is not available; terminating a low priority carrier channel allocation to produce an available carrier channel; allocating the available carrier channel to the infrastructure control channel; and updating the carrier channel allocation database.
Claim 25
Dependent Claim
54 words
The method of claim 20 further comprises: determining whether the increasing of the bit loading of the carrier channel meets bit loading requirements for the infrastructure control channel; when the increasing does not meet the bit loading requirements, allocating another carrier channel to the infrastructure control channel; and updating a carrier channel allocation database.
Claim 26
Dependent Claim
59 words
The method of claim 19 further comprises, when the difference is the increase bit loading; determining whether bit loading requirements of the infrastructure control channel can be fulfilled with fewer carrier channels; when the bit loading requirements can be fulfilled with fewer carrier channels, reallocating carrier channels to the infrastructure control channel; and updating a carrier channel allocation database.
Claim 27
Independent Claim
75 words
An apparatus for updating carrier channel allocations of a communication system infrastructure, the apparatus comprising: memory that stores bit loading information, updated bit loading information, and carrier channel allocation information; and processor, operably coupled to the memory, that compares the bit loading information and updated bit loading information and identifies differences and that determines, based on the differences, carrier channel allocation modifications and updates the carrier channel allocation information with the carrier channel allocation modifications.
Claim 28
Independent Claim
75 words
An apparatus for updating carrier channel allocations of a communication system infrastructure, the apparatus comprising: memory that stores bit loading information, updated bit loading information, and carrier channel allocation information; and processor, operably coupled to the memory, that compares the bit loading information and updated bit loading information and identifies differences and that determines, based on the differences, carrier channel allocation modifications and updates the carrier channel allocation information with the carrier channel allocation modifications.
References Cited (Backward Citations)
US5400322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-28 | 1999-11-27 | 2000-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-28 | 2003-11-27 | 2004-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-28 | 2007-11-27 | 2008-05-28 | $7700.00 | Window Closed / Lapsed |