Patent US5481544A successfully refreshed from Google Patents.
US5481544A
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Multi-channel broadband adaptation processing
Assignee: AT&T Inc
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Filing: 1994-10-17
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Granted: 1996-01-02
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Expires: 2014-10-17
Abstract
Abstract A method and apparatus for transmitting and/or receiving packets (e.g., CDMA packets, CDPD packets, etc.) that are associated with different channels and which are multiplexed via a single channel (e.g., an ATM Channel).
Inventors
- 👤 John H. Baldwin
- 👤 Bharat T. Doshi
- 👤 Subrahmanyam Dravida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:11
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L1/00; H04L1/004; H04L1/0056; H04L1/0061; H04W; H04W92/00; H04W92/02; H04L2012/5603; H04L2012/5604; H04L2012/5607; H04L2012/5638; H04L2012/5646; H04L2012/5652
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
125 words
A method for multiplexing a first user packet comprising M octets and a second user packet comprising N octets that are associated with different channels into a cell information field, said method comprising: building a first basic control octet which comprises: (1) an additional control bit that indicates if a first supplemental control octet accompanies said first basic control octet, (2) a length indicator based on M; building a second basic control octet which comprises: (1) an additional control bit that indicates if a second supplemental control octet accompanies said second basic control octet, (2) a length indicator based on N; packing said first basic control octet, said first user packet, said second basic control octet and said second user packet into said information field.
Claim 2
Independent Claim
125 words
A method for multiplexing a first user packet comprising M octets and a second user packet comprising N octets that are associated with different channels into a cell information field, said method comprising: building a first basic control octet which comprises: (1) an additional control bit that indicates if a first supplemental control octet accompanies said first basic control octet, (2) a length indicator based on M; building a second basic control octet which comprises: (1) an additional control bit that indicates if a second supplemental control octet accompanies said second basic control octet, (2) a length indicator based on N; packing said first basic control octet, said first user packet, said second basic control octet and said second user packet into said information field.
Claim 3
Dependent Claim
81 words
The method of claim 1 wherein: said first basic control octet further comprises a parity bit based on said additional control bit that indicates if a first supplemental control octet accompanies said first basic control octet and said length indicator based on M, and said second basic control octet further comprises a parity bit based on said additional control bit that indicates if a second supplemental control octet accompanies said second basic control octet and said length indicator based on N.
Claim 4
Dependent Claim
40 words
The method of claim 1 wherein said step of packing further comprises concatenating said first basic control octet, said first user packet, said second basic control octet and said second user packet into said information field in the recited order.
Claim 5
Dependent Claim
39 words
The method claim 3 wherein said step of packing further comprises aligning said first basic control octet, said first user packet, said second basic control octet and said second user packet with a boundary of said ATM information field.
Claim 6
Dependent Claim
38 words
The method of claim 4 further comprising the step of padding any unused portion of said ATM information field with at least one copy of each of said first basic control octet and said second basic control octet.
Claim 7
Independent Claim
231 words
A method for generating the information field of an Asynchronous Transfer Mode cell based at least on a first user packet, which is associated with a logical link P and which comprises M octets, and on a second user packet, which is associated with a logical link Q and which comprises N octets, said method comprising: building a first basic control octet that comprises: (1) an additional control bit that indicates that a first supplemental control octet accompanies said first basic control octet, and (2) a length indicator based on M; building a first supplemental control octet that comprises: (1) an additional control bit that indicates when an ancillary control octet accompanies said first supplemental control octet, and (2) a logical link indicator based on P; building a second basic control octet that comprises: (1) an additional control bit that indicates that a second supplemental control octet accompanies said secohal basic control octet, and (2) a length indicator based on N; building a second supplemental control octet that comprises: (1) an additional control bit that indicates when an ancillary control octet accompanies said second supplemental control octet, and (2) a logical link indicator based on Q; and packing said first control octet, said first basic supplemental control octet, said first user packet, said second basic control octet, said second supplemental control octet and said second user packet into said information field.
Claim 8
Independent Claim
231 words
A method for generating the information field of an Asynchronous Transfer Mode cell based at least on a first user packet, which is associated with a logical link P and which comprises M octets, and on a second user packet, which is associated with a logical link Q and which comprises N octets, said method comprising: building a first basic control octet that comprises: (1) an additional control bit that indicates that a first supplemental control octet accompanies said first basic control octet, and (2) a length indicator based on M; building a first supplemental control octet that comprises: (1) an additional control bit that indicates when an ancillary control octet accompanies said first supplemental control octet, and (2) a logical link indicator based on P; building a second basic control octet that comprises: (1) an additional control bit that indicates that a second supplemental control octet accompanies said secohal basic control octet, and (2) a length indicator based on N; building a second supplemental control octet that comprises: (1) an additional control bit that indicates when an ancillary control octet accompanies said second supplemental control octet, and (2) a logical link indicator based on Q; and packing said first control octet, said first basic supplemental control octet, said first user packet, said second basic control octet, said second supplemental control octet and said second user packet into said information field.
Claim 9
Dependent Claim
101 words
The method of claim 6 wherein: said first basic control octet further comprises a parity bit based on at least said length indicator within said first basic control octet; said first supplemental control octet further comprises a redundancy field based at least on said logical link indicator within said first supplemental control octet; said second basic control octet further comprises a parity bit based at least on said length indicator within said second basic control octet; and said second supplemental control octet further comprises a redundancy field based at least on said logical link indicator within said second supplemental control octet.
Claim 10
Dependent Claim
42 words
The method of claim 6 wherein said step of packing further comprises concatenating said first basic control octet, said first supplemental control octet, said first user packet, said second basic control octet, said second supplemental control octet and said second user packet.
Claim 11
Dependent Claim
39 words
The method claim 8 wherein said step of packing further comprises aligning said first basic control octet, said first user packet, said second basic control octet and said second user packet with a boundary of said ATM information field.
Claim 12
Dependent Claim
36 words
The method of claim 9 further comprising the step of padding any unused portion of said ATM information field with at least one copy of said first basic control octet and said second basic control octet.
References Cited (Backward Citations)
US5363369A
Cited
US5414707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-01 | 1999-07-03 | 2000-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-01 | 2003-07-03 | 2004-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-01 | 2007-07-03 | 2008-01-02 | $7700.00 | Window Closed / Lapsed |