US5577046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic retransmission request
Assignee: Telefonaktiebolaget LM Ericsson AB
•
Filing: 1995-06-07
•
Granted: 1996-11-19
•
Expires: 2015-06-07
Abstract
Abstract A method for obtaining a report from a mobile station on the status of frames comprising an entire message transmitted to the mobile station is disclosed. First, a polling request is sent to the mobile station from a base station. A status report is then sent to the base station. The polling request specifies whether the mobile station should send the status report on a reservation basis (using a reserved frame) or on a contention basis (using an idle frame). The mobile station then transmits a bit map to the communication system to indicate which frames have been correctly received by the mobile station at the point when it received the polling request.
Inventors
- 👤 John W. Diachina
- 👤 Håkan C. Andersson
- 👤 Bengt Persson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:22
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/18; H04L1/1867; H04L1/1896; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2643; H04B7/2656; H04L1/1607; H04L1/1614; H04L1/1685; H04L1/1803; H04L1/1809; H04L1/1829; H04L1/1861; H04L2001/0092; H04L2001/0093; H04W; H04W68/00; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
A base station for use in a cellular communication system, comprising: means for transmitting a polling request to a mobile station, wherein said polling request uses a partial echo portion of shared channel feedback to indicate which mobile station is being sent said polling request; means for receiving a bit map from said mobile station in a response to said polling request; means for interpreting said bit map to determine which of a plurality of frames have been correctly received by said mobile station when the polling request was received.
Claim 2
Dependent Claim
90 words
A base station for use in a cellular communication system, comprising: means for transmitting a polling request to a mobile station, wherein said polling request uses a partial echo portion of shared channel feedback to indicate which mobile station is being sent said polling request; means for receiving a bit map from said mobile station in a response to said polling request; means for interpreting said bit map to determine which of a plurality of frames have been correctly received by said mobile station when the polling request was received.
Claim 3
Dependent Claim
23 words
A base station according to claim 1, wherein said bit map indicates whether the mobile station has correctly received up to 32 frames.
References Cited (Backward Citations)
GB2063011A
Cited
US4612637A
Cited
US4639937A
Cited
US4667193A
Cited
JPS60152144A
Cited
JPS60248039A
Cited
EP0321454A2
Cited
US4649538A
Cited
US4736371A
Cited
US4905234A
Cited
US5031179A
Cited
EP0336079A2
Cited
US4940974A
Cited
US5172375A
Cited
EP0462572A2
Cited
US5235592A
Cited
US5222061A
Cited
US5353332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-19 | 2000-05-20 | 2000-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-19 | 2004-05-20 | 2004-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-19 | 2008-05-20 | 2008-11-19 | $7700.00 | Window Closed / Lapsed |