US6408003B1
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Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames
Assignee: Qualcomm Inc
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Filing: 1998-07-10
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Granted: 2002-06-18
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Expires: 2018-07-10
Abstract
Abstract A method and apparatus for resolving ambiguity in reception of multiple retransmitted frames includes ascertaining for each data frame received from a transmitter whether the frame is a retransmitted frame. If the frame is a retransmitted frame, the frame may be stored in a resequencing buffer. If an abort timer associated with the second round of retransmission has been set for the retransmitted frame, an associated negative-acknowledgment-list (NAK-list) entry is not removed from a NAK list until the abort timer has expired. If the abort timer has not been set for the retransmitted frame, the associated NAK-list entry is removed from the NAK list. The method and apparatus may reside in a transport function in which a transmitter sends data frames to a receiver in accordance with the Radio Link Protocol interface. The transport function may reside in, e.g., a data-capable cellular or satellite-based base station and subscriber unit.
Inventors
- 👤 Ramin Rezaiifar
- 👤 Nikolai K. N. Leung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:06
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/1607; H04L1/1642; H04L1/165; H04L1/18; H04L1/1809; H04L1/1829; H04L1/1835; H04L1/1841; H04L47/00; H04L47/10; H04L47/34; H04L9/00; H04L9/40; H04L69/00; H04L69/30; H04L69/32; H04L69/322; H04L69/324; H04W; H04W24/00; H04W84/00; H04W84/02; H04W84/04; H04W84/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
115 words
A method of resolving ambiguity in a transport function wherein a plurality of frames are sent from a transmitter to a receiver, the method comprising the steps of: ascertaining for each frame whether the frame is a retransmitted frame; storing each retransmitted frame; determining for each retransmitted frame whether an associated abort timer has been set; removing for each retransmitted frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set; and retaining for each retransmitted frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated abort timer for the frame expires.
Claim 2
Independent Claim
115 words
A method of resolving ambiguity in a transport function wherein a plurality of frames are sent from a transmitter to a receiver, the method comprising the steps of: ascertaining for each frame whether the frame is a retransmitted frame; storing each retransmitted frame; determining for each retransmitted frame whether an associated abort timer has been set; removing for each retransmitted frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set; and retaining for each retransmitted frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated abort timer for the frame expires.
Claim 3
Dependent Claim
16 words
The method of claim 1 , wherein the transport function is a Radio Link Protocol interface.
Claim 4
Dependent Claim
32 words
The method of claim 1 , wherein the associated abort timer is associated with a second round of retransmission of the frame as defined in accordance with a Radio Link Protocol interface.
Claim 5
Dependent Claim
33 words
The method of claim 1 , wherein the associated list entry is an associated negative-acknowledgment-list entry and the predefined list is a negative-acknowledgment list defined in accordance with a Radio Link Protocol interface.
Claim 6
Dependent Claim
28 words
The method of claim 1 , wherein the storing step comprises storing each retransmitted frame in a resequencing buffer configured in accordance with a Radio Link Protocol interface.
Claim 7
Independent Claim
149 words
An apparatus for resolving ambiguity in a transport function wherein a plurality of frames are sent from a transmitter to a receiver, the apparatus comprising: means for ascertaining for each frame whether the frame is a retransmitted frame; means, logically coupled to the means for ascertaining, for storing each retransmitted frame; means, logically coupled to the means for ascertaining, for determining for each retransmitted frame whether an associated abort timer has been set; means, logically coupled to the means for ascertaining, for removing for each retransmitted frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set; and means, logically coupled to the means for ascertaining, for retaining for each retransmitted frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated timer for the frame expires.
Claim 8
Independent Claim
149 words
An apparatus for resolving ambiguity in a transport function wherein a plurality of frames are sent from a transmitter to a receiver, the apparatus comprising: means for ascertaining for each frame whether the frame is a retransmitted frame; means, logically coupled to the means for ascertaining, for storing each retransmitted frame; means, logically coupled to the means for ascertaining, for determining for each retransmitted frame whether an associated abort timer has been set; means, logically coupled to the means for ascertaining, for removing for each retransmitted frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set; and means, logically coupled to the means for ascertaining, for retaining for each retransmitted frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated timer for the frame expires.
Claim 9
Dependent Claim
16 words
The apparatus of claim 6 , wherein the transport function is a Radio Link Protocol interface.
Claim 10
Dependent Claim
29 words
The apparatus of claim 6 , wherein the associated abort timer is associated with a second round of retransmission as defined in accordance with a Radio Link Protocol interface.
Claim 11
Dependent Claim
33 words
The apparatus of claim 6 , wherein the associated list entry is an associated negative-acknowledgment-list entry and the predefined list is a negative-acknowledgment list defined in accordance with a Radio Link Protocol interface.
Claim 12
Dependent Claim
31 words
The apparatus of claim 6 , wherein the means for storing comprises means for storing each retransmitted frame in a resequencing buffer configured in accordance with a Radio Link Protocol interface.
Claim 13
Dependent Claim
123 words
A data transmission system, comprising: a transmitter; a receiver coupled to the transmitter via an interface for receiving data frames from the transmitter; and a protocol processing component housed in the receiver for ascertaining whether the received data frames are retransmitted data frames, storing the retransmitted data frames, determining for each retransmitted data frame whether an associated abort timer has been set, removing for each retransmitted data frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set, and retaining for each retransmitted data frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated abort timer for the frame expires.
Claim 14
Dependent Claim
123 words
A data transmission system, comprising: a transmitter; a receiver coupled to the transmitter via an interface for receiving data frames from the transmitter; and a protocol processing component housed in the receiver for ascertaining whether the received data frames are retransmitted data frames, storing the retransmitted data frames, determining for each retransmitted data frame whether an associated abort timer has been set, removing for each retransmitted data frame an associated list entry from a predefined list if the associated abort timer for the frame has not been set, and retaining for each retransmitted data frame the associated list entry in the predefined list, if the associated abort timer for the frame has been set, until the associated abort timer for the frame expires.
Claim 15
Dependent Claim
23 words
The system of claim 11 , wherein the protocol processing component is configured to operate in accordance with a Radio Link Protocol interface.
Claim 16
Dependent Claim
29 words
The system of claim 11 , wherein the associated abort timer is associated with a second round of retransmission as defined in accordance with a Radio Link Protocol interface.
Claim 17
Dependent Claim
33 words
The system of claim 11 , wherein the associated list entry is an associated negative-acknowledgment-list entry and the predefined list is a negative-acknowledgment list defined in accordance with a Radio Link Protocol interface.
Claim 18
Dependent Claim
30 words
The system of claim 11 , wherein the protocol processing component includes a resequencing buffer configured in accordance with a Radio Link Protocol interface for storing each retransmitted data frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-06-17 | 2005-12-17 | 2006-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-17 | 2009-12-17 | 2010-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-17 | 2013-12-17 | 2014-06-18 | $7700.00 | Window Closed / Lapsed |