CN101753281A - Method and system for reducing redundant message retransmission of radio link control layer - Google Patents
Method and system for reducing redundant message retransmission of radio link control layer Download PDFInfo
- Publication number
- CN101753281A CN101753281A CN 200810239443 CN200810239443A CN101753281A CN 101753281 A CN101753281 A CN 101753281A CN 200810239443 CN200810239443 CN 200810239443 CN 200810239443 A CN200810239443 A CN 200810239443A CN 101753281 A CN101753281 A CN 101753281A
- Authority
- CN
- China
- Prior art keywords
- radio link
- link control
- control entity
- status report
- rlc protocol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and a system for reducing redundant message retransmission of a radio link control layer, which are used for solving the technical problem that after an RLC protocol entity is rebuilt, the transmitting end transmits the redundant message repeatedly which is confirmed to be received by the receiving end to cause the resource waste. By utilizing the characteristics that the RLC protocol layer can previously predict whether the rebuilt is happened or not, the receiving end RLC protocol entities which belongs to the confirming mode of the same terminal try to send a status message to the transmitting end before the RLC protocol entity receives the rebuilding instruction, the receiving end RLC protocol entity deletes the massage which is confirmed to be received by the receiving end according to the status report before the transmitting end RLC protocol entity receives the rebuilding request, and the message is not transmitted repeatedly after the rebuilding, so the retransmission of the redundant message can be reduced, and the empty expenditure can be reduced.
Description
Technical field
The present invention relates to moving communicating field, be particularly related to a kind of LTE (Long Term Evolution, long-term evolution) in the system, in the process of reconstruction of wireless chain control layer protocol entity (Re-establishmentprocedure), reduce or avoid the method and system of transmitter side re-transmission redundant message.
Background technology
RLC (Radio Link Control, Radio Link control) protocol layer is in the Radio interface protocols stack of LTE, it is a sublayer of L2 (layer 2), be positioned at MAC (Media Access Control, the medium access control) on the layer, the rlc protocol layer provides segmentation and retransmits professional for user and control data.The function of rlc protocol layer comprises link control, encapsulation and reorganization, cascade, user data transmission, error correction, protocol error detection and reparation etc.Each rlc protocol entity is by RRC (Radio Resource Control, Radio Resource control) dispose and operate with three kinds of patterns, be respectively: transparent mode (TM, Transparent Mode), Unacknowledged Mode (UM, Unacknowledged Mode), affirmation mode (AM, AcknowledgedMode).
ARQ in the affirmation mode (Auto Repeat Request, automatic repeat requests), realize to transmitting terminal status report (Status Report) by receiving terminal, transmitting terminal is judged which PDU (Protocol Data Unit according to the ACK SN among the Status Report, NACK SN, protocol Data Unit) being received end acknowledges receipt of, which PDU or PDU fragment need to retransmit, thereby guarantee reliability of data transmission.In 36.322 agreements, send too frequent for fear of Status Report, take interface-free resources, set a T_status_prohibit (status report is forbidden) timer at the receiving terminal of rlc protocol entity, start this timer behind Status Report of every transmission, at the timer run duration, forbid sending Status Report.
At UE (User Equipment, subscriber equipment) side and eNodeB (Evolution NodeB, evolution base station) side, correspondence belongs to each bar logic channel (Logic Channel) of this UE, UE and eNodeB can set up the rlc protocol entity of equity, and this protocol entity is carried out the handling process of rlc protocol layer.The local terminal of Miao Shuing promptly refers to be subordinated among UE or the eNodeB some UE, and the rlc protocol entity of a corresponding specific logic channel in this article, and the opposite end promptly is an indication above, corresponding same logic channel with this protocol entity, reciprocity rlc protocol entity.
Rlc protocol volume reconstruction process (Re-establishment procedure), refer to the rlc protocol entity, entity resets (Reset) process by the high level indication, in this process, relate to the processing of current uplink and downlink message, the setting of timer, a series of related procedure such as change of protocol status variable.The present invention be directed to the process of reconstruction under the AM affirmation mode.
36.322 in the agreement, at present as shown in Figure 1: after receiving terminal receives the reconstruction indication of RRC to the description of the rlc protocol volume reconstruction process of AM pattern, the message that has received that directly will receive in the sliding window is all delivered to the upper strata, be PDCP (Packet Data Convergence Protocol, PDCP) layer, and no matter whether it is continuous, and can not send Status Report to transmitting terminal this moment.After reconstruction was finished, transmitting terminal need resend the message that receiving terminal does not have loopback to cross to reply.
The condition that triggers rlc protocol volume reconstruction process at present comprises following a few class:
● switch, indicate by RRC;
● the rlc protocol layer is handled unusual;
● network condition is abominable, repeatedly retransmits as certain message and all sends failure.
Fig. 2 has described in the rlc protocol volume reconstruction process, causes the reason of redundant message transmission.As shown in the figure, before process of reconstruction took place, receiving terminal had received that sequence number is 0,1,2,3,7 message, 4,5,6 disappearances.Receive upper strata indication reconstruction, then receiving terminal can all be delivered 0,1,2,3,7 these 5 messages to the PDCP layer.For PDCP, sequence number is that 0,1,2,3 message belongs to the message of receiving continuously, can continue to deliver to the upper strata, and from sequence number 4, then need to continue to wait for the message of transmitting terminal re-transmission after reconstruction.
Yet in process of reconstruction, receiving terminal does not send Status Report to transmitting terminal, and for transmitting terminal, all messages of sequence number from 0 to 7 are not all received and replied.After rlc protocol volume reconstruction process was finished, transmitting terminal is whole messages of transmission sequence number from 0 to 7 again.After the rlc protocol entity resets of receiving terminal, all state variables and timer make zero, and can't judge that these messages are to retransmit or New Development, so still be delivered to PDCP, judge by PDCP whether message repeats.Concerning PDCP, the message of sequence number 0,1,2,3,7 all is a redundant message, can only abandon.On flow process, because lack the mutual of receiving terminal and transmitting terminal in the process of reconstruction, thereby correctly receive but do not send Status Report and cause transmitting terminal not receive that the message of replying is repeated transmission, has wasted the processing time of interface-free resources and protocol layer because of take place rebuilding though cause those receiving terminals.
Discuss among the manuscript CR R2-085804 in nearest agreement, removed process of reconstruction, replace the mode that UE all rebuilds all special-purpose DRB of this UE at single DRB (Data RadioBear, Data Radio Bearer).This that is to say that a DRB's is unusual, may cause the redundant message transmission on many DRB, thereby causes the waste of bigger interface-free resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of wireless chain control layer to reduce the method that message retransmits, be used to solve and repeat transmitting and receiving terminal behind the rlc protocol volume reconstruction and confirmed the redundant message that receives, cause the technical problem of interface-free resources waste.
Core concept of the present invention is: in the condition that triggers rlc protocol volume reconstruction process, except switching this by the direct condition of initiating of high level, reconstruction under all the other two kinds of conditions, all be by behind the RLC notice high level, initiate by high level again, hence one can see that, the rlc protocol layer can predict in advance whether reconstruction takes place, therefore, before receiving to rebuild indication, the rlc protocol entity allow each Data Radio Bearer (DRB) that belongs to this UE all attempt to send a status report (Status Report) to transmitting terminal, transmitting terminal was just at first disposed the message that these have acknowledged receipt of before receiving the request of reconstruction, after reconstruction is finished, no longer repeat to send, retransmit thereby reduce redundant message.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of wireless chain control layer reduces the method that message retransmits, and may further comprise the steps:
Steps A: in eNodeB or UE side, when corresponding to the rlc protocol entity detection of a certain logic channel when triggering rlc protocol volume reconstruction unusual, the notice local terminal be subordinated to other rlc protocol entity corresponding of same UE or only notify that local terminal is subordinated to same UE with logic channel with the corresponding affirmation pattern of logic channel under the rlc protocol entity;
In the eNodeB side, a plurality of rlc protocol entities that belong to same UE normally operate on same veneer or the digital signal processor, only comprise the rlc protocol entity of this UE in the UE side.No matter be eNodeB side or UE side, detecting the unusual rlc protocol entity of triggering rlc protocol volume reconstruction can notify local terminal other rlc protocol entity corresponding with logic channel by modes such as function call, message communicating mechanism or global variable signs, and local terminal need be rebuild all rlc protocol entities that are subordinated to same UE.
Step B: the radio link control entity that is in affirmation mode that local terminal is notified is to the rlc protocol entity status report (Status Report) of opposite end equity;
In the steps A, if the rlc protocol entity that notes abnormalities only notifies local terminal to be subordinated to the RLC entity under the affirmation mode of being in of same UE, then this step need not judge whether current notified rlc protocol entity is in affirmation mode again; If in the steps A, the rlc protocol entity notice local terminal that notes abnormalities is subordinated to all RLC entities of same UE, need also among the step B then to judge whether current rlc protocol entity is in affirmation mode, and the rlc protocol entity that only is under the affirmation mode just needs status report.Also be in affirmation mode if detect the unusual rlc protocol entity of triggering rlc protocol volume reconstruction in the steps A, then other rlc protocol entity that is in affirmation mode of this rlc protocol entity and local terminal all needs to the opposite end status report.
Step C: after the rlc protocol entity of described opposite end equity is received status report, protocol Data Unit (the Protocol Data Unit that has acknowledged receipt of in the deletion status report, PDU) and the service data unit of upper strata correspondence (Service Data Unit, SDU).
Further, in the steps A, be meant unusually the protocol processes mistake or the message of described triggering rlc protocol volume reconstruction retransmit unusually;
Further, among the step B, no matter its status report forbids whether timer (T_status_prohibit timer) moves to the radio link control entity that is in affirmation mode that local terminal is notified, and all the rlc protocol entity to the opposite end equity sends a status report (Status Report);
Further, among the step B, the radio link control entity that is in affirmation mode that described local terminal is notified is as follows to the step of the rlc protocol entity status report of opposite end equity:
Step B01, judge whether the T_status_prohibit timer moves, if off-duty, then execution in step B02; If B03 is then carried out in operation;
Step B02, send Status Report, execution in step B05 to the rlc protocol entity of opposite end equity;
Step B03, stop the T_status_prohibit timer, then execution in step B04;
Step B04, send Status Report to the rlc protocol entity of opposite end equity;
Step B05, restart the T_status_prohibit timer.
Another object of the present invention is to provide a kind of wireless chain control layer to reduce the system that redundant message retransmits, comprise UE side and eNodeB side, UE side and eNodeB side all comprise chain of command processing unit and user's face processing unit, comprise one or more radio link control entities corresponding in user's face processing unit with logic channel, when corresponding to the radio link control entity detection of a certain logic channel when triggering radio link control volume reconstruction unusual, have the function that the notice local terminal is subordinated to other radio link control entity of same terminal or is in the radio link control entity of affirmation mode; The radio link control entity that is in affirmation mode that local terminal is notified has the function to opposite end equity radio link control entity status report after receiving described notice.
Further, rlc protocol entity of the present invention further comprises:
The entity handles module is used to realize the basic function of rlc protocol entity;
Notification module, be used for when corresponding to the rlc protocol entity detection of a certain logic channel when triggering rlc protocol volume reconstruction unusual the notice local terminal other be subordinated to all rlc protocol entities of same UE;
Status report module before rebuilding was used for before local terminal is in rlc protocol volume reconstruction under the affirmation mode to opposite end equity rlc protocol entity status report.
Further, after the rlc protocol volume reconstruction was finished, the rlc protocol entity only retransmitted unacknowledged message among the Status Report that receives recently.
It should be noted that if because network condition is abominable, then Status Report also possibly can't send to the opposite end,, whether can come into force in real time and then depend on the network environment that triggers when rebuilding so this scheme is a kind of protection mechanism.
Adopt after the implementation method of the present invention, can allow the rlc protocol volume reconstruction finish after, the protocol entity of transmitting terminal is the transmitting and receiving terminal message of receiving unconfirmed only, avoided receiving terminal received message repeat the transmission, reduced the expense of eating dishes without rice or wine.
Description of drawings
Fig. 1 is the realization of rlc protocol volume reconstruction flow process generally speaking;
Fig. 2 for process of reconstruction finish after the schematic diagram that retransmits of redundant message;
Fig. 3 is the logical construction schematic diagram of system of the present invention;
Fig. 4 is the building-block of logic of rlc protocol entity in the system of the present invention;
Fig. 5 A for rlc protocol entity detection in the present invention's one specific embodiment to triggering the handling process of reconstruction when unusual;
Fig. 5 B for rlc protocol entity detection in another specific embodiment of the present invention to triggering the handling process of reconstruction when unusual;
Fig. 6 is the handling process of rlc protocol entity of the present invention after notified;
Fig. 7 receives Status Report for opposite end of the present invention rlc protocol entity, the handling process before and after rebuilding;
Fig. 8 realizes the sequential flow chart for process of reconstruction of the present invention is whole.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the logical construction schematic diagram of system of the present invention, comprises UE end and eNodeB end two parts, and the protocol hierarchy relation and the module at two ends are formed basically identical.Two ends all comprise chain of command processing unit and user's face processing unit two parts, and each UE holds user's face processing unit that a correspondence can be arranged at eNodeB, is used to handle the user face data that is subordinated to same UE.RLC entity in user's face processing unit is used to finish the wireless chain control layer protocol function, each end might comprise a plurality of service logical channels, therefore it is corresponding with service logical channels to have a plurality of rlc protocol entities, each the rlc protocol entity all rlc protocol entity of the equity by Traffic Channel and opposite end communicates, in the existing protocol, when the rlc protocol entity is detecting when triggering rlc protocol volume reconstruction unusual, can notify the Radio Resource controlled entity in the chain of command processing unit, the Radio Resource controlled entity can be rebuild Indication message to sending at all rlc protocol entities that are subordinated to same UE, after treating that local terminal rlc protocol volume reconstruction is finished, resend the message data that does not obtain confirming again.Among the present invention, the rlc protocol entity is detecting when triggering rlc protocol volume reconstruction unusual, all that can at first notify local terminal are subordinated to the rlc protocol entity of same UE, and notified and rlc protocol entity that be under the affirmation mode can status report be given opposite end rlc protocol entity before reconstruction.
Fig. 4 is the logical construction schematic diagram of the rlc protocol entity in the system of the present invention, comprises entity handles module, notification module, status report module before rebuilding.The entity handles module is used for finishing the function of existing protocol wireless chain control layer; Notification module is used for when corresponding to the rlc protocol entity detection of a certain logic channel other rlc protocol entity of notice local terminal when triggering rlc protocol volume reconstruction unusual; The status report module was used for before local terminal rlc protocol volume reconstruction to opposite end equity rlc protocol entity status report before rebuilding.The entity handles module detects unusual back notice and rebuilds preceding status report module and notification module, the status report module sends status report messages and notification module after other rlc protocol entity that local terminal is subordinated to same UE sends abnormity notifying message to the opposite end before reconstruction, the entity handles module will report the Radio Resource controlled entity unusually, and the decision-making of Radio Resource controlled entity is rebuild and sent the reconstruction indication to the entity handles module.
In the present invention's one specific embodiment, suppose to belong at certain eNodeB 5 rlc protocol entities of UE (User Equipment, subscriber equipment), be affirmation mode, the DRB of respectively corresponding 5 kinds of different business comes respectively with DRB1～DRB5.Suppose that the rlc protocol entity receiving terminal of each DRB has received according to the order of sequence that all sequence number is 10 messages of 0～9 now, length is 1024 bytes, because do not reach the condition that triggers StatusReport, all be not the RLC peer protocol entity transmission StatusReport of UE at present to transmitting terminal; It is 10 messages of 0～9 that the reciprocity rlc protocol entity transmitting terminal of each DRB of UE side has sent sequence number, and also having sequence number is that 5 messages of 10～14 are to be sent, and length is 1024 bytes equally.When the rlc protocol entity detection of DRB1 correspondence retransmit to protocol processes mistake or message surpass threshold value unusual after, handling process such as Fig. 5 A:
The rlc protocol entity detection of step 5-01:DRB1 surpasses the unusual of threshold value to protocol processes mistake or the re-transmission of a certain message;
The rlc protocol entity of step 5-02:DRB1 is notified all the rlc protocol entities from DRB1 to DRB5 that belong to this UE by the mode of message or function call;
The rlc protocol entity of step 5-03:DRB1 is with the Radio Resource controlled entity of this abnormity notifying local terminal.
In the present invention's one specific embodiment, suppose to belong at certain eNodeB 8 rlc protocol entities of UE (User Equipment, subscriber equipment), the DRB of respectively corresponding 8 kinds of different business comes respectively with DRB1～DRB8.Wherein DRB1～DRB5 is the rlc protocol entity of affirmation mode, and DRB6～DRB8 is the rlc protocol entity of Unacknowledged Mode.Suppose that the rlc protocol entity receiving terminal of each DRB has received according to the order of sequence that all sequence number is 10 messages of 0～9 now, length is 1024 bytes, because do not reach the condition that triggers Status Report, the rlc protocol entity of all affirmation modes all is not the RLC peer protocol entity transmission Status Report of UE to transmitting terminal at present; It is 10 messages of 0～9 that the reciprocity rlc protocol entity transmitting terminal of each DRB of UE side has sent sequence number, and also having sequence number is that 5 messages of 10～14 are to be sent, and length is 1024 bytes equally.When the rlc protocol entity detection of DRB1 correspondence retransmit to protocol processes mistake or message surpass threshold value unusual after, handling process such as Fig. 5 B:
The rlc protocol entity detection of step 5-11:DRB1 surpasses the unusual of threshold value to protocol processes mistake or the re-transmission of a certain message;
The rlc protocol entity of step 5-12:DRB1 is notified the rlc protocol entity of the affirmation pattern from DRB1 to DRB5 that belongs to this UE by the mode of message or function call, but does not notify DRB6 rlc protocol entity to these Unacknowledged Modes of DRB8;
The rlc protocol entity of step 5-13:DRB1 is with the Radio Resource controlled entity of this abnormity notifying local terminal.
For each rlc protocol entity that is informed in from DRB1 to DRB5 (comprise and at first detect wrong rlc protocol entity), carry out following steps as shown in Figure 6:
Step 6-1:RLC protocol entity is notified, learns to detect and may trigger the unusual of rlc protocol volume reconstruction;
Step 6-2: this rlc protocol entity judges whether T_status_prohibit (Status Disable) timer of self is in run mode, if then change flow process 6-3 over to, otherwise directly jump to flow process 6-4;
Step 6-3: stop the T_status_prohibit timer;
Step 6-4: send Status Report to the rlc protocol entity of opposite end equity, the ACK_SN that wherein comprises equals 10, promptly identifies 0～9 message and all receives;
Step 6-5: start the T_status_prohibit timer.
The rlc protocol entity of opposite end receives after the Status Report, handling process as shown in Figure 7:
Step 7-1:RLC protocol entity is received the Status Report that sends the opposite end;
Step 7-2: according to Status Report, the sequence number that has correctly been received by the opposite end in the transmit queue in the deletion protocol entity is 0～9 PDU, and the corresponding SDU of notice upper strata deletion;
Step 7-3: rebuild and finish;
Step 7-4: retransmit still not deleted SDU, the i.e. SDU of the PDU correspondence of sequence number 10～14 to opposite end RLC.
In sum, the process of reconstruction that comprises the method for the invention is carried out following steps as shown in Figure 8:
Step 8-1: receiving terminal rlc protocol entity is learnt and is taken place to trigger the unusual of rlc protocol volume reconstruction;
Step 8-2: receiving terminal rlc protocol entity sends Status Report to the opposite end;
Step 8-3: after transmitting terminal rlc protocol entity is received Status Report, delete the PDU that is correctly received by the opposite end in the transmit queue, and the corresponding SDU of notice upper strata deletion;
Step 8-4: receiving terminal and transmitting terminal rlc protocol entity are all received the reconstruction indication on upper strata;
Step 8-5: receiving terminal rlc protocol entity will receive all messages in the buffering area, and no matter whether it all delivers to PDCP continuously;
Step 8-6:RLC protocol entity is rebuild and is finished;
Step 8-7: transmitting terminal rlc protocol entity sends to the opposite end and does not obtain the PDU that confirms as yet.
Can see that from the description of this flow process because before receiving the reconstruction indication, receiving terminal and transmitting terminal have carried out the mutual of a Status Report, make transmitting terminal can delete the confirmed PDU of receiving terminal.After reconstruction, only can transmit the PDU that those do not obtain confirming like this, avoid a large amount of re-transmissions of redundant message.In this embodiment, 5 DRB, each DRB do not repeat transmission sequence number after reconstruction be 10 PDU messages of 0～9, and each length is 1024 bytes, and promptly in the transfer of data of eating dishes without rice or wine to have reduced 50K, effect is quite tangible.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (7)
1. a wireless chain control layer reduces the method that redundant message retransmits, and it is characterized in that, comprising:
A, in evolution base station or end side, when corresponding to the radio link control entity detection of a certain logic channel when triggering radio link control volume reconstruction unusual, the notice local terminal is subordinated to other radio link control entity corresponding with logic channel of same terminal or is in the radio link control entity of affirmation mode;
The notified radio link control entity that is in affirmation mode of B, local terminal is to the radio link control entity status report of opposite end equity;
After the radio link control entity of C, described opposite end equity is received status report, the protocol Data Unit that has acknowledged receipt of in the deletion status report and the service data unit of upper strata correspondence.
2. method according to claim 1 is characterized in that, in the steps A, be meant unusually the protocol processes mistake or the message of described triggering radio link control volume reconstruction retransmit unusually.
3. method according to claim 1, it is characterized in that, among the step B, no matter its status report forbids whether timer moves to the radio link control entity that is in affirmation mode that described local terminal is notified, all to the radio link control entity status report of opposite end equity.
4. method according to claim 1 is characterized in that, among the step B, the radio link control entity that is in affirmation mode that described local terminal is notified is as follows to the step of the radio link control entity status report of opposite end equity:
B01, judge whether the Status Disable timer moves, if off-duty, then execution in step B02; If B03 is then carried out in operation;
B02, to the radio link control entity status report of opposite end equity, carry out B05;
B03, halted state are forbidden timer, then execution in step B04;
B04, to the radio link control entity status report of opposite end equity;
B05, starting state are forbidden timer.
5. a wireless chain control layer reduces the system that redundant message retransmits, comprise end side and evolution base station side, two ends all comprise chain of command processing unit and user's face processing unit, comprise one or more radio link control entities corresponding in user's face processing unit with logic channel, it is characterized in that
When corresponding to the radio link control entity detection of a certain logic channel when triggering radio link control volume reconstruction unusual, have the function that the notice local terminal is subordinated to other radio link control entity of same terminal or is in the radio link control entity of affirmation mode;
The radio link control entity that is in affirmation mode that local terminal is notified has the function to opposite end equity radio link control entity status report after receiving described notice.
6. system according to claim 5 is characterized in that, radio link control entity of the present invention further comprises:
The entity handles module is used to realize the basic function of radio link control entity;
Notification module, be used for when corresponding to the radio link control entity detection of a certain logic channel when triggering radio link control volume reconstruction unusual the notice local terminal other be subordinated to all radio link control entities of same terminal;
Status report module before rebuilding was used for before local terminal is in radio link control volume reconstruction under the affirmation mode to opposite end equity radio link control entity status report.
7. system according to claim 5 is characterized in that, after the radio link control volume reconstruction was finished, the radio link control entity only retransmitted unacknowledged message in the status report that receives recently.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810239443 CN101753281B (en) | 2008-12-10 | 2008-12-10 | Method and system for reducing redundant message retransmission of radio link control layer |
| PCT/CN2009/074697 WO2010066152A1 (en) | 2008-12-10 | 2009-10-29 | Method and system for reducing redundant message retransmission in radio link control (rlc) layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810239443 CN101753281B (en) | 2008-12-10 | 2008-12-10 | Method and system for reducing redundant message retransmission of radio link control layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101753281A true CN101753281A (en) | 2010-06-23 |
| CN101753281B CN101753281B (en) | 2013-03-20 |
Family
ID=42242338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810239443 Expired - Fee Related CN101753281B (en) | 2008-12-10 | 2008-12-10 | Method and system for reducing redundant message retransmission of radio link control layer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101753281B (en) |
| WO (1) | WO2010066152A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000357A1 (en) * | 2010-06-28 | 2012-01-05 | 中兴通讯股份有限公司 | Method for processing dirty data of user plane and terminal device thereof |
| CN107148762A (en) * | 2014-10-31 | 2017-09-08 | 高通股份有限公司 | Forbid timer for partial status report come disabled status |
| CN110891326A (en) * | 2018-09-07 | 2020-03-17 | 中国移动通信有限公司研究院 | Control plane connection reestablishing method, communication equipment, target base station and source base station |
| CN112787754A (en) * | 2020-12-29 | 2021-05-11 | 紫光展锐(重庆)科技有限公司 | Data processing method and related device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632229B (en) * | 2017-03-24 | 2020-07-07 | 电信科学技术研究院 | Header compression method, header decompression method and device in multi-connection |
| CN109788516B (en) * | 2017-11-13 | 2021-04-16 | 普天信息技术有限公司 | Method and device for confirming downlink data in LTE switching process |
| CN111162882B (en) * | 2019-12-19 | 2023-01-31 | 京信网络系统股份有限公司 | Data transmission method, device, base station equipment and computer readable storage medium |
| CN115426680B (en) * | 2022-07-21 | 2024-08-02 | 华力智芯(成都)集成电路有限公司 | Processing method for retransmitting data packet in RLC (radio link control) confirmation mode of data plane of Tiantong system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323563C (en) * | 2005-03-28 | 2007-06-27 | 华为技术有限公司 | Receiving method of multimedia brondiasting/group broadcast service control information |
| JP2007288746A (en) * | 2006-04-20 | 2007-11-01 | Ntt Docomo Inc | Communication terminal, and data transmission method |
| US20080056148A1 (en) * | 2006-09-06 | 2008-03-06 | Mediatek Inc. | Wireless communication method and apparatus for reducing data retransmission |
-
2008
- 2008-12-10 CN CN 200810239443 patent/CN101753281B/en not_active Expired - Fee Related
-
2009
- 2009-10-29 WO PCT/CN2009/074697 patent/WO2010066152A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000357A1 (en) * | 2010-06-28 | 2012-01-05 | 中兴通讯股份有限公司 | Method for processing dirty data of user plane and terminal device thereof |
| CN107148762A (en) * | 2014-10-31 | 2017-09-08 | 高通股份有限公司 | Forbid timer for partial status report come disabled status |
| CN110891326A (en) * | 2018-09-07 | 2020-03-17 | 中国移动通信有限公司研究院 | Control plane connection reestablishing method, communication equipment, target base station and source base station |
| CN110891326B (en) * | 2018-09-07 | 2021-09-14 | 中国移动通信有限公司研究院 | Control plane connection reestablishing method, communication equipment, target base station and source base station |
| CN112787754A (en) * | 2020-12-29 | 2021-05-11 | 紫光展锐(重庆)科技有限公司 | Data processing method and related device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010066152A1 (en) | 2010-06-17 |
| CN101753281B (en) | 2013-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101753281B (en) | Method and system for reducing redundant message retransmission of radio link control layer | |
| KR100732345B1 (en) | Flexible radio link control protocol | |
| CN101753277B (en) | Method for transmitting message status report of radio link control layer | |
| KR101394784B1 (en) | Method of Performing ARQ Procedure for Transmitting High Rate Data | |
| CN103840925B (en) | For handling the method and apparatus of the error control messages in wireless communication system | |
| US10530431B2 (en) | Method and apparatus in a wireless communication system | |
| CN102355343B (en) | Data transmission method and data re-transmission method | |
| CN100466845C (en) | System for efficient recovery of node-B buffered data following MAC layer reset | |
| CN101924620B (en) | Message retransmission method and device | |
| CN101009537A (en) | A data retransfer method and system | |
| CN101399643B (en) | Control method and device for confirming mode data transmission | |
| CN112237026B (en) | Optimization method and system for feedback mechanism in data link layer | |
| US20160315736A1 (en) | Method and equipment for throughput recovery during resumption from outage scenarios | |
| CN103179614A (en) | Method of processing HARQ by considering measurement gap | |
| US9246637B2 (en) | Communication terminal device and method for operating a communication terminal device | |
| CN101989899B (en) | Method for triggering status report by radio link control layer and receiving side device | |
| CN101990240B (en) | Data sending method and data sending system of wireless link control layer | |
| CN101483506A (en) | Inhibition method for automatic retransmission request state reporting | |
| CN102804664B (en) | Communication system, communication device, communication method, and program | |
| CN101483507A (en) | Inhibition method for automatic retransmission request state reporting based on LTE system | |
| WO2014101111A1 (en) | Data transmission method and device | |
| CN101127586A (en) | A method for triggering automatic retransfer request status report | |
| CN102201901A (en) | Data retransmission method and device | |
| US11546100B2 (en) | Operation of automatic repeat request | |
| US20070223524A1 (en) | Protocol Parameter Negotiation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100623 Assignee: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Assignor: ZTE Corporation Contract record no.: 2015440020319 Denomination of invention: Method and system for reducing redundant message retransmission of radio link control layer Granted publication date: 20130320 License type: Common License Record date: 20151123 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |