CN101483507A - Inhibition method for automatic retransmission request state reporting based on LTE system - Google Patents
Inhibition method for automatic retransmission request state reporting based on LTE system Download PDFInfo
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- CN101483507A CN101483507A CNA2008100023436A CN200810002343A CN101483507A CN 101483507 A CN101483507 A CN 101483507A CN A2008100023436 A CNA2008100023436 A CN A2008100023436A CN 200810002343 A CN200810002343 A CN 200810002343A CN 101483507 A CN101483507 A CN 101483507A
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Abstract
The present invention provides an automatic request retransmission state report restriction method based on LTE system. In the method, a receiving end AM RLC sustains a state report restriction timer and a re-ranking timer, wherein, the receiving end AM RLC does not trigger a state report in the operating period of state report restriction timer. The receiving end AM RLC receives the polling of transmitting end AM RLC. The time for triggering the state report is determined according to polling and/or the states of timer and re-ranking timer. The restriction to the automatic request retransmission state report is realized through the automatic request retransmission state report restriction method of the invention, thereby preventing the frequent transmission of unnecessary state report by the receiving end, and furthermore saving wireless resource and increasing the whole efficiency and capability of system.
Description
Technical field
The present invention relates to Long Term Evolution (Long TermEvolution the abbreviates LTE as) system in the digital mobile communication technical field, particularly, relate to a kind of automatic request retransmission status report inhibition method based on the LTE system.
Background technology
3-G (Generation Three mobile communication system) Wideband Code Division Multiple Access (WCDMA) (Wideband Code DivisionMultiple Access, abbreviate WCDMA as) wireless chain control layer (the Radio Link Control of wave point, RLC) comprise three types of RLC entities, that is: transparent mode (Transparent Mode, abbreviate TM as), Unacknowledged Mode (UnacknowledgedMode, abbreviate UM as) and affirmation mode (Acknowledged Mode abbreviates AM as).Wherein, TM RLC entity and UM RLC entity can be configured to send the RLC entity or receive the RLC entity, particularly, send the RLC entity and send wireless link control protocol data cell (Radio Link Control Protocol Data Unit, abbreviate RLC PDU as), receive the RLC entity and receive RLC PDU.AM RLC entity comprises transmitting terminal and receiving terminal, and wherein, transmitting end AM RLC entity sends RLC PDU, and receiving terminal AM RLC entity receives RLC PDU.
The automatic repeat requests of AM RLC entity utilization (Automatic RetransmissionRequest abbreviates ARQ as) mechanism provides reliable data transport service, and ARQ adopts transmission and the reception of sliding window mechanism control RLC PDU.Fig. 1 is RLC AM data transport stream journey figure, and wherein, transmitting end AM RLC entity sends RLC PDU, and receiving terminal AM RLC entity receives RLC PDU.Receiving terminal AM RLC entity is by feeding back the reception condition of relevant RLC PDU to transmitting end AM RLC entity status report (Status Report), comprise and confirm response message (ACK) and two kinds of situations of non-affirmation response message (NACK), fed back the RLC PDU of NACK for receiving terminal, transmitting end AM RLC entity need be carried out re-transmission.Fig. 2 is the transmission flow chart of RLC AM status report, wherein, and receiving terminal AM RLC entity status report, transmitting end AM RLC entity receiving state report.Do not receive at transmitting terminal under the situation of receiving-end state report, if poll (Polling) trigger condition satisfies, for example, send window arrives certain thresholding or sends and sends last RLC PDU in the buffering area, and then transmit leg is reported to the receiving terminal solicited status by poll bit is set in the header of RLC PDU.Receiving terminal and when detecting RLC PDU and losing, can trigger status report when receiving poll.
For avoiding receiving terminal to trigger the status report of continuous affirmation response message type continually, can dispose and starting state report inhibition timer Timer_Status_Prohibit.This timer starts after the status report of last affirmation response message type successfully sends.At the timer run duration, do not allow to trigger the status report that other confirms response message type; If other condition that triggers status report satisfies, could trigger status report after then needing to be deferred to this timer expiry.
3G (Third Generation) Moblie Long Term Evolution (Long Term Evolution, abbreviating LTE as) wireless chain control layer (Radio Link Control abbreviates RLC as) of system wireless interface also comprises three types of RLC entities: TM RLC entity, UM RLC entity and AM RLC entity.AM RLC entity also adopts ARQ mechanism to realize reliable transmission, and similarly mechanism of 3-G (Generation Three mobile communication system) WCDMA has been continued to use in the management of its send window and receive window basically.Its RLC PDU transmits and status report transmission flow process and Fig. 1, method shown in Figure 2 are consistent.
Different is, in the LTE system, AM RLC entity is supported the heavily segmentation of RLC PDU, and promptly RLC PDU can be the part of the initial RLC PDU that transmits when retransmitting.Receiving terminal will trigger status report after overtime mixing the automatic repeat requests HARQ timer T_reordering that reorders under the situation that detects RLC PDU or RLC PDU fragment loss.Receiving terminal also may trigger status report when receiving the poll of transmitting terminal.The form of status report is an acknowledge message sequence number ACK_SN, 0,1 or organize non-affirmation sequence of response messages NACK_SN more, may also comprise pairing one group of field offset initial value SOstart of each NACK_SN and field offset end value SOend, wherein, ACK_SN is corresponding to the upper bound of above-mentioned state send window, the highest SN number for what correctly receive in the above-mentioned window, NACK_SN and corresponding SOstart, SOend thereof are all are lost in the above-mentioned window RLC PDU or SN number and field offset amount of RLC PDU segmentation.
The LTE system also supports and needs poll and status report to suppress, but present 3GPP (3rd Generation Partnership Project, third generation partner plan) the concrete mechanism that suppresses for the status report in the LTE system is not also stipulated, does not have in the practice to realize that the status report at the LET system suppresses scheme yet.
Summary of the invention
Consider the problem that needs a kind of status report inhibition mechanism in the LTE system that exists in the correlation technique and propose the present invention, for this reason, the present invention aims to provide a kind of automatic request retransmission status report inhibition method based on the LTE system, and this method suppresses timer and realizes inhibition to automatic request retransmission status report by introduce status report in the LTE system.
According to an aspect of the present invention, a kind of automatic request retransmission status report inhibition method based on the LTE system is provided, the radio link control entity that is used for affirmation mode is that AM RLC carries out the status report inhibition, and wherein, AM RLC comprises transmitting end AM RLC and receiving terminal AM RLC.
The automatic request retransmission status report inhibition method based on the LTE system according to the embodiment of the invention comprises following processing: the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, wherein, suppress timer run duration receiving terminal AMRLC at status report and do not trigger status report; Receiving terminal AM RLC receives the poll of transmitting end AM RLC; The state that suppresses timer, the timer that reorders according to poll and/or status report determines when the triggering status report.
In said method, if receiving terminal AM RLC receives the poll of transmitting end AM RLC at the status report inhibition timer and the timer run duration that reorders, then when status report suppressed timer expiry, receiving terminal AM RLC judged that whether the timer that reorders is in operation; Under the off-duty situation of timer is reordered in judgement, trigger status report, reorder timer under the situation of operation in judgement, be delayed to and reorder timer expiry or trigger status report when being stopped.
Preferably, in said method, under status report suppressed the situation of a plurality of polls that the timer run duration receives transmitting end AM RLC, receiving terminal AM RLC only triggered a status report when triggering status report at receiving terminal AM RLC.
Perhaps, if receiving terminal AM RLC is having only status report to suppress the poll that the timer run duration receives transmitting end AM RLC, then receiving terminal AM RLC triggers status report when status report suppresses timer expiry.
In these cases, said method further comprises following processing: after triggering the status report success, the report of receiving terminal AM RLC starting state suppresses timer.
Perhaps, if receiving terminal AM RLC receives the poll of transmitting end AM RLC at the timer run duration that only reorders, then receiving terminal AM RLC triggers status report when reordering timer expiry.
In addition, if receiving terminal AM RLC receives the poll of transmitting end AM RLC when status report suppresses timer and reorders the equal off-duty of timer, then receiving terminal AM RLC triggers status report when receiving poll.
Wherein, the above-mentioned maintenance state report operation that suppresses the timer and the timer that reorders comprises: start, stop, resetting, overtime etc.
According to a further aspect in the invention, a kind of automatic request retransmission status report inhibition method based on the LTE system is provided, the radio link control entity that is used for affirmation mode is that AM RLC carries out the status report inhibition, and wherein, AM RLC comprises transmitting end AM RLC and receiving terminal AM RLC.
The automatic request retransmission status report inhibition method based on the LTE system according to the embodiment of the invention comprises following processing: the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, wherein, suppress timer run duration receiving terminal AMRLC at status report and do not trigger status report; Receiving terminal AM RLC does not receive the poll from transmitting end AM RLC, and triggers status report when reordering timer expiry.
Preferably, if status report suppresses timer still in operation when reordering timer expiry, then stop and the reset mode report suppresses timer.
In above-mentioned at least one technical scheme provided by the invention, suppress timer by in the LTE system, introducing status report, provide a kind of AM RLC entity to suppress the mechanism that timer triggers status report by means of the timer that reorders, status report, realized inhibition to automatic request retransmission status report, thereby can avoid the unnecessary status report of the frequent transmission of receiving terminal, and then can save Radio Resource, raising overall system efficient and performance.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the data transport stream journey figure according to AMRLC among the 3-G (Generation Three mobile communication system) WCDMA of correlation technique;
Fig. 2 is the status report transmission flow chart according to AMRLC among the 3-G (Generation Three mobile communication system) WCDMA of correlation technique;
Fig. 3 is the flow chart based on the automatic request retransmission status report inhibition method of LTE according to the first embodiment of the present invention;
Fig. 4 is the flow chart based on the automatic request retransmission status report inhibition method of LTE of embodiment according to the present invention 1;
Fig. 5 is the flow chart based on the automatic request retransmission status report inhibition method of LTE of embodiment according to the present invention 2;
Fig. 6 is the flow chart based on the automatic request retransmission status report inhibition method of LTE of embodiment according to the present invention 3;
Fig. 7 is the flow chart based on the automatic request retransmission status report inhibition method of LTE of embodiment according to the present invention 4;
Fig. 8 is the flow chart based on the automatic request retransmission status report inhibition method of LTE according to a second embodiment of the present invention.
Embodiment
As mentioned above, in the LTE system, need a kind of status report to suppress mechanism, Given this, the invention provides a kind of automatic request retransmission status report inhibition method based on the LTE system, it has been introduced status report and has suppressed timer in the LTE system, provide a kind of AMRLC entity to suppress the mechanism that timer realizes that status report suppresses by means of the timer that reorders, status report.
In the LTE system, receiving terminal HARQ reorders and carries out at AM RLC entity, triggers status report behind the timer expiry that reorders.Also can trigger status report when in addition, receiving terminal receives poll.Therefore, status report suppresses mechanism and need take all factors into consideration and reorder timer and receive situation such as poll.
According to existing protocol, receiving terminal AM RLC entity is carried out and is received RLC PDU, upgrades receive window, safeguards the timer operations such as (T_reordering) of reordering.Wherein, safeguard that the timer that reorders comprises startup, stops, resetting, operation such as overtime.And according to existing protocol, receiving terminal AM RLC entity is carried out operations such as triggering status report when reordering timer expiry.
Based on foregoing, below with reference to accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
First embodiment
According to the embodiment of the invention, at first provide in a kind of automatic request retransmission status report inhibition method based on the LTE system, introduce status report and suppressed timer, and according to the poll that receives and status report suppress timer, the timer that reorders judges whether to trigger status report, AM RLC is carried out status report to be suppressed, wherein, AM RLC comprises transmitting end AM RLC and receiving terminal AM RLC.
Fig. 3 is the flow chart that illustrates according to the method for first embodiment.As shown in Figure 3, this method comprises following processing:
Step S302, the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report and does not trigger status report;
Step S304, receiving terminal AM RLC receives the poll of transmitting end AM RLC;
Step S306, the state that suppresses timer, the timer that reorders according to poll and/or status report determines when the triggering status report.
In step S304, even receiving terminal AM RLC suppresses a plurality of polls that the timer run duration receives transmitting end AM RLC at status report, receiving terminal AM RLC also only triggers a status report when triggering status report.
In addition, reorder timer and status report suppress timer and can move simultaneously, also can have only an operation, can also all not move, at different situations, under different situations, receive poll, the processing of relative trigger status report also is not quite similar.Below will be described by embodiment respectively.
Example 1: receiving terminal AM RLC suppresses to receive when timer all moves poll at reorder timer and status report
Fig. 4 is the flow chart that the processing of this example is shown.As shown in Figure 4, this method comprises following processing:
Step S402, receiving terminal AM RLC safeguard that status report such as (comprise startup, stop, resetting, overtime) suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report not trigger status report;
Step S404, receiving terminal AM RLC receive the poll of transmitting end AM RLC at the status report inhibition timer and the timer run duration that reorders;
Step S406, when status report suppresses timer expiry, receiving terminal AM RLC judges that whether the timer that reorders is in operation, under the off-duty situation of timer is reordered in judgement, trigger status report (step S408-1), reorder timer under the situation of operation in judgement, be delayed to and reorder timer expiry or trigger status report (step S408-2) when being stopped.Preferably, after triggering the status report success, the report of receiving terminal AM RLC starting state suppresses timer.
Example 2: receiving terminal AM RLC is having only status report to suppress the poll that the timer run duration receives transmitting end AM RLC
Fig. 5 is the flow chart that the processing of this example is shown.As shown in Figure 5, this method comprises following processing:
Step S502, the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report and does not trigger status report;
Step S504, receiving terminal AM RLC is having only status report to suppress the poll that the timer run duration receives transmitting end AM RLC;
Step S506, receiving terminal AM RLC trigger status report when status report suppresses timer expiry.
In this example, because the not operation of timer of reordering, only need therefore to suppress that timer is whether overtime to judge whether to trigger status report according to status report.
Example 3: receiving terminal AM RLC receives the poll of transmitting end AM RLC at the timer run duration that only reorders
Fig. 6 is the flow chart that the processing of this example is shown.As shown in Figure 6, this method comprises following processing:
Step S602, the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report and does not trigger status report;
Step S604, receiving terminal AM RLC receive the poll of transmitting end AM RLC at the timer run duration that only reorders;
Step S606, receiving terminal AM RLC trigger status report when reordering timer expiry.
In this example, because status report suppresses not operation of timer, therefore only need to judge whether to trigger status report according to the timer that reorders is whether overtime.
Example 4: receiving terminal AM RLC status report suppress timer and reorder timer all not run duration receive the poll of transmitting end AM RLC
Fig. 7 is the flow chart that the processing of this embodiment is shown.As shown in Figure 7, this method comprises following processing:
Step S702, the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report and does not trigger status report;
Step S704, receiving terminal AM RLC receive the poll of transmitting end AM RLC when status report suppresses timer and reorders the equal off-duty of timer, receiving terminal AM RLC triggers status report when receiving poll.
In this example, because status report suppresses timer and the timer that reorders does not all move when receiving poll, therefore need not to judge whether to trigger status report according to it.
Described above is that receiving terminal AM RLC receives poll and triggers the situation of status report, in fact also have a kind of situation to be, when receiving terminal AM RLC does not receive poll, can trigger status report by the timer that reorders equally, the following examples are illustrated at this kind situation.
Second embodiment
According to the embodiment of the invention, a kind of automatic request retransmission status report inhibition method based on the LTE system is provided, the difference of this embodiment and the foregoing description is that receiving terminal AMRLC does not receive poll.
Fig. 8 is the flow chart that the processing of this embodiment is shown.As shown in Figure 8, this method comprises following processing:
Step S802, the report of receiving terminal AM RLC maintenance state suppresses the timer and the timer that reorders, and wherein, suppresses timer run duration receiving terminal AM RLC at status report and does not trigger status report;
Step S804, receiving terminal AM RLC does not receive the poll from transmitting end AM RLC, and triggers status report when reordering timer expiry.
Preferably, if status report suppresses timer still in operation when reordering timer expiry, then stop and the reset mode report suppresses timer, and after triggering the status report success, the starting state report suppresses timer.
Need to prove, in each above-mentioned embodiment, if by switching the status report that (Handover) triggers, the running status that then suppresses timer regardless of reorder timer and/or status report, directly trigger status report, and restart reorder timer and/or status report inhibition timer.
As mentioned above, by means of technical scheme provided by the invention, suppress timer by in the LTE system, introducing status report, provide a kind of AM RLC entity to suppress the mechanism that timer triggers status report by means of the timer that reorders, status report, realized inhibition to automatic request retransmission status report, thereby can avoid the unnecessary status report of the frequent transmission of receiving terminal, and then can save Radio Resource, raising overall system efficient and performance.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. automatic request retransmission status report inhibition method based on the LTE system, the radio link control entity that is used for affirmation mode is that AM RLC carries out the status report inhibition, and wherein, AM RLC comprises transmitting end AM RLC and receiving terminal AM RLC, it is characterized in that described method comprises:
Described receiving terminal AM RLC maintenance state report suppresses the timer and the timer that reorders, and wherein, suppresses the described receiving terminal AM of timer run duration RLC at described status report and does not trigger status report;
Described receiving terminal AM RLC receives the poll of described transmitting end AM RLC;
The state that suppresses timer, the described timer that reorders according to described poll and/or described status report determines when the triggering status report.
2. method according to claim 1 is characterized in that, describedly determines when that the operation that triggers status report is specially:
If described receiving terminal AM RLC receives the described poll of described transmitting end AM RLC at described status report inhibition timer and the described timer run duration that reorders, then when described status report suppressed timer expiry, described receiving terminal AM RLC judged that whether the described timer that reorders is in operation;
Trigger status report under the off-duty situation of the described timer that reorders judging, judging the described timer that reorders under the situation of operation, be delayed to the described timer expiry or trigger described status report when being stopped of reordering.
3. method according to claim 1, it is characterized in that, under described status report suppressed the situation of a plurality of polls that the timer run duration receives described transmitting end AM RLC, described receiving terminal AM RLC only triggered a status report when triggering status report at described receiving terminal AMRLC.
4. method according to claim 1 is characterized in that, describedly determines when that the operation that triggers status report is specially:
If described receiving terminal AM RLC is having only described status report to suppress the described poll that the timer run duration receives described transmitting end AM RLC, then described receiving terminal AM RLC triggers status report when described status report suppresses timer expiry.
5. according to claim 2 or 4 described methods, it is characterized in that, further comprise:
After triggering described status report success, described receiving terminal AM RLC starts described status report and suppresses timer.
6. method according to claim 1 is characterized in that, describedly determines when that the operation that triggers status report is specially:
If described receiving terminal AM RLC is having only the described timer run duration that reorders to receive the described poll of described transmitting end AM RLC, then described receiving terminal AM RLC triggers status report during timer expiry described reordering.
7. method according to claim 1 is characterized in that, describedly determines when that the operation that triggers status report is specially:
If described receiving terminal AM RLC suppresses timer and described reordering receives the described poll of described transmitting end AM RLC during the equal off-duty of timer at described status report, then described receiving terminal AM RLC triggers described status report when receiving described poll.
8. method according to claim 1 is characterized in that, the operation that the report of described maintenance state suppresses the timer and the timer that reorders comprises: start, stop, resetting, overtime.
9. automatic request retransmission status report inhibition method based on the LTE system, the radio link control entity that is used for affirmation mode is that AM RLC carries out the status report inhibition, and wherein, AM RLC comprises transmitting end AM RLC and receiving terminal AM RLC, it is characterized in that described method comprises:
Described receiving terminal AM RLC maintenance state report suppresses the timer and the timer that reorders, and wherein, suppresses the described receiving terminal AM of timer run duration RLC at described status report and does not trigger status report;
Described receiving terminal AM RLC does not receive the poll from described transmitting end AM RLC, and triggers status report during timer expiry described reordering.
10. method according to claim 9 is characterized in that, if describedly reorder that described status report suppresses timer still in operation during timer expiry, then stops and the described status report that resets suppresses timer.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069206A1 (en) * | 2008-12-16 | 2010-06-24 | 中兴通讯股份有限公司 | Transmitting method for message status reporting in radio link control layer, system thereof |
| WO2011012005A1 (en) * | 2009-07-31 | 2011-02-03 | 中兴通讯股份有限公司 | Method and receiving side device for triggering status report in radio link control layer |
| CN102316468A (en) * | 2011-08-19 | 2012-01-11 | 新邮通信设备有限公司 | Coexistence interference indicating method in long term evolution (LTE) trigger equipment and user equipment (UE) |
| WO2013102310A1 (en) * | 2012-01-06 | 2013-07-11 | 华为技术有限公司 | Data processing method and device |
| WO2014204367A1 (en) * | 2013-06-19 | 2014-12-24 | Telefonaktiebolaget L M Ericsson (Publ) | Polling and reporting mechanism |
| CN106165332A (en) * | 2014-04-11 | 2016-11-23 | 高通股份有限公司 | Negate quickly the method and apparatus of acknowledgement (NACK) for sending |
| WO2024039277A1 (en) * | 2022-08-19 | 2024-02-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system to implement configurable timers at the radio link control layer in a wireless network |
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2008
- 2008-01-08 CN CNA2008100023436A patent/CN101483507A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069206A1 (en) * | 2008-12-16 | 2010-06-24 | 中兴通讯股份有限公司 | Transmitting method for message status reporting in radio link control layer, system thereof |
| WO2011012005A1 (en) * | 2009-07-31 | 2011-02-03 | 中兴通讯股份有限公司 | Method and receiving side device for triggering status report in radio link control layer |
| CN102316468A (en) * | 2011-08-19 | 2012-01-11 | 新邮通信设备有限公司 | Coexistence interference indicating method in long term evolution (LTE) trigger equipment and user equipment (UE) |
| CN102316468B (en) * | 2011-08-19 | 2014-02-19 | 新邮通信设备有限公司 | Coexistence interference indicating method in long term evolution (LTE) trigger equipment and user equipment (UE) |
| WO2013102310A1 (en) * | 2012-01-06 | 2013-07-11 | 华为技术有限公司 | Data processing method and device |
| WO2014204367A1 (en) * | 2013-06-19 | 2014-12-24 | Telefonaktiebolaget L M Ericsson (Publ) | Polling and reporting mechanism |
| US9900798B2 (en) | 2013-06-19 | 2018-02-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Polling and reporting mechanism |
| CN106165332A (en) * | 2014-04-11 | 2016-11-23 | 高通股份有限公司 | Negate quickly the method and apparatus of acknowledgement (NACK) for sending |
| US10320549B2 (en) | 2014-04-11 | 2019-06-11 | Qualcomm Incorporated | Methods and apparatus for sending fast negative acknowledgements (NACKs) |
| WO2024039277A1 (en) * | 2022-08-19 | 2024-02-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system to implement configurable timers at the radio link control layer in a wireless network |
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Application publication date: 20090715 |