CN104469859B - A kind of method and system for improving data transmission performance - Google Patents
A kind of method and system for improving data transmission performance Download PDFInfo
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- CN104469859B CN104469859B CN201310438477.3A CN201310438477A CN104469859B CN 104469859 B CN104469859 B CN 104469859B CN 201310438477 A CN201310438477 A CN 201310438477A CN 104469859 B CN104469859 B CN 104469859B
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- user side
- measurement report
- data packet
- control layer
- bag
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The present invention provides a kind of method and system for improving data transmission performance, including：The radio resource control layer of user side reports a measurement report, while the wireless chain control layer of user side is notified to switch at any time flow；After the wireless chain control layer of user side receives the instruction of the radio resource control layer of user side, triggering uplink sends uplink state bag and puts the data packet of P；After the ascending resource for receiving network distribution, user sends the measurement report, uplink state bag and puts the data packet of P to network side；The source base station of network side switches over flow according to measurement report；Confirmed according to uplink state bag and discharge downlink data packet；Data packet according to putting P replys user side downstream state bag；User side according to downstream state bag confirms and discharges upstream data bag.The present invention is as much as possible before the handover to confirm the uplink and downlink data packet being successfully transmitted, and reduces deactivating retransmission of the switching to some bags.
Description
Technical field
The present invention relates to wireless technical field, more particularly to a kind of method and system for improving data transmission performance.
Background technology
It is provided in 3GPP (3Generation Partnership Project) agreement 36.323sec5.2.1.1：When upper
PDCP of layer request（Packet Data Convergence Protocol）During reconstruction, UE（User）It should：Rebuild the head compression protocol of uplink（Such as
Fruit is configured）；During reconstruction process, Encryption Algorithm and the key of upper strata offer are used（Key）Encryption；It is corresponding from first
PDCP PDU are delivered successfully but are not started by the PDCP SDU that lower floor confirms, before PDCP as described below is rebuild, perform
All corresponding PDCP SDU of PDCP SN values since the corresponding COUNT values of this PDCP SDU, arranged by COUNT values ascending order
Re-transmission or transmission.
It is provided again in 3GPP (3Generation Partnership Project) agreement 36.323sec5.3.1：When upper
When layer asks a PDCP reconstruction, UE should：If this radio bearer is used to send a PDCP in uplink by upper-layer configured
State reporting, after having handled due to the PDCP Data PDU that lower floor rebuilds and comes from lower floor's receiving, UE is according to following finger
Show the such state reporting of compiling, passed as described in 5.2.2.1 sections, and using this state reporting as this first PDCP PDU transmitted
Pass low layer.
In the prior art, as depicted in figs. 1 and 2, the switching based on X2 and the switching based on S1 are mainly included.Based on
In the switching flow of X2, there is the connection of circuit between former base station and target BS, in switching, source base station and target BS can be with
Directly consult to switch over.And in the switching flow based on S1, connect between former base station and target BS without direct circuit
It connects, in switching, source base station and target BS need to consult to switch over by third party.
But there are the following problems for the prior art：
1）In switching, if not configuring status report, all unacknowledged bags can be retransmitted, and it is actually right
End may have received some bags, the wasting of resources can be caused by retransmitting these paid-in bags, it is not necessary to re-transmission also have not
Necessary time delay expense.
2）In switching, if being configured with status report, since state report is after handover success, in target
It is sent in the Traffic Channel of cell, opposite end judges which data packet needs to retransmit again according to state report.Since switching has been completed,
Then UE and network all may have been carried out retransmitting to some data packets that need not be retransmitted.
3）In switching, source base station S-eNB needs to forward all unacknowledged downlink data packets to target BS T-eNB,
Some of which data packet actually UE has been received by, i.e., the data packet that need not be retransmitted actually is also unnecessary from source base station S-
ENB is forwarded to target BS T-eNB's.
The content of the invention
It is an object of the invention to provide a kind of method and systems for improving data transmission performance, are existed with solving the prior art
During handover between cells, there are deactivating retransmission, the problem of causing the wasting of resources.
In order to solve the above technical problems, the present invention provides a kind of method for improving data transmission performance, including：
The radio resource control layer of user side reports a measurement report；
After the wireless chain control layer of user side receives the instruction of the radio resource control layer of user side, triggering uplink is sent
Uplink state bag and the data packet for putting P；
After the ascending resource for receiving network distribution, user side sends the measurement report, uplink state bag and the number for putting P
According to bag to network side；
The source base station of network side switches over flow according to measurement report；Confirmed according to uplink state bag and discharge downlink
Data packet；Data packet according to putting P replys user side downstream state bag；
User side according to downstream state bag confirms and discharges upstream data bag.
Further, in the method for the raising data transmission performance, the measurement report includes：A3 events and B2
Event.
Further, in the method for the raising data transmission performance, on the radio resource control layer of user side
Simultaneously, the radio resource control layer of user side informs about the wireless chain control layer of user side at any time to the step of reporting a measurement report
Switch flow.
Meanwhile the present invention also provides it is a kind of improve data transmission performance system, including：
The radio resource control layer of user side, for reporting a measurement report；
The wireless chain control layer of user side, after receiving the instruction of the radio resource control layer of user side, in triggering
Row sends uplink state bag and puts the data packet of P；
User side after receiving the ascending resource of network distribution, sends the measurement report, uplink state bag and puts P
The data packet of position is to network side；
The source base station of network side, for according to measurement report, switching over flow；Confirmed according to uplink state bag and discharged
Downlink data packet；Data packet according to putting P replys user side downstream state bag；
User side is additionally operable to that upstream data bag is confirmed and discharged according to downstream state bag.
Further, in the system of the raising data transmission performance, the measurement report includes：A3 events and B2
Event.
Further, in the system of the raising data transmission performance, the radio resource control layer of the user side
It is additionally operable to, the wireless chain control layer of user side is notified to switch at any time flow.
A kind of method and system for improving data transmission performance provided by the invention, has the advantages that：The present invention
One kind is added by radio resource control layer（RRC）Notify wireless chain control layer（RLC）P digits are put in triggering state bag and triggering
According to the mode of bag so that it is as much as possible before switching to confirm the uplink and downlink data packet being successfully transmitted, switching is reduced to some
The deactivating retransmission of bag.
Description of the drawings
Fig. 1 is the schematic diagram of switching flow of the prior art based on X2；
Fig. 2 is the schematic diagram of switching flow of the prior art based on S1；
Fig. 3 is the flow diagram for the method that the present invention improves data transmission performance.
Specific embodiment
The method and system of raising data transmission performance proposed by the present invention is made below in conjunction with the drawings and specific embodiments
It is further described.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted
Be, attached drawing using very simplified form and using non-accurate ratio, only to it is convenient, lucidly aid in illustrating this hair
The purpose of bright embodiment.
As shown in figure 3, the present invention provides a kind of method for improving data transmission performance, including：
S31：The radio resource control layer RRC of user side reports a measurement report；At the same time, the radio resource of user side
The wireless chain control layer RLC that key-course RRC informs about user side switches flow at any time.
Specifically, in the present invention, the measurement report includes：A3 events and B2 events.
At present, in ubiquitous system all it is the triggering switching of A3 events, is all the triggering switching of B2 events between system.
, it is necessary to which UE reporting measurement reports, the measurement report include Reference Signal Received Power when switching between LTE cells
（RSRP）, Reference Signal Received Quality（RSRQ）Deng, and report and be divided into report with what event triggered periodically to report.
Periodical last week is distributed by base station, the direct reporting measurement reports of UE；
Event triggering reports the event being divided between event and different system for same display system.
Event with display system includes：
1st, event A1, serving cell are better than absolute thresholding, this event can be used for closing the measurement of some minizones；
2nd, event A2, serving cell are worse than absolute thresholding, this event can be used for opening the measurement of some minizones, because
May switch etc. operations after occurring for this event；
3rd, event A3, neighbor cell are better than serving cell, this event occurs to be used for determining whether UE is switched to neighbour
Occupy cell；
4th, event A4, neighbor cell are better than absolute thresholding；
5th, event A5, serving cell is worse than an absolute thresholding and neighbor cell is better than an absolute thresholding, this when
Between can also be used to support switching.
Time between different system includes：
1st, event B1, neighbor cell are better than absolute thresholding；
2nd, event B2, serving cell is worse than an absolute thresholding and neighbor cell is better than an absolute thresholding, this thing
Part may switch etc. operations after occurring.
Particularly, in this step, user side RRC is beforehand with switch decision, reports the measurement report that may cause switching
During announcement, the RLC of UE sides is also notified, instruction is possible subsequently to that switching can be triggered.
S32：After the wireless chain control layer RLC of user side receives the instruction of radio resource control layer RRC of user side, touch
Hair uplink sends uplink state bag and puts the data packet of P；
Particularly, in this step, the data packet that RLC uplinks send uplink state bag and put P is triggered so that before switching
It is as much as possible to confirm the uplink and downlink data packet having occurred and that, reduce deactivating retransmission of the switching to some bags.
S33：After the ascending resource for receiving network distribution, user side sends the measurement report, uplink state bag and puts P
Data packet to network side；
S34：The source base station of network side switches over flow according to measurement report；Confirmed according to uplink state bag and discharged
Downlink data packet；Data packet according to putting P replys user side downstream state bag；
S35：User side according to downstream state bag confirms and discharges upstream data bag.
Particularly, equally, the source base station of network side is as much as possible before the handover to confirm also using same method
The uplink and downlink data packet of generation reduces deactivating retransmission of the switching to some bags.
Meanwhile the present invention also provides it is a kind of improve data transmission performance system, including：
The radio resource control layer RRC of user side, for reporting a measurement report；At the same time, the nothing of user side is notified
Wired link key-course RLC switches flow at any time.
The wireless chain control layer RLC of user side, after receiving the instruction of radio resource control layer RRC of user side,
Triggering uplink sends uplink state bag and puts the data packet of P；
User side after receiving the ascending resource of network distribution, sends the measurement report, uplink state bag and puts P
The data packet of position is to network side；
The source base station of network side, for according to measurement report, switching over flow；Confirmed according to uplink state bag and discharged
Downlink data packet；Data packet according to putting P replys user side downstream state bag；
User side is additionally operable to that upstream data bag is confirmed and discharged according to downstream state bag.
Particularly, in the present invention, the measurement report includes：A3 events and B2 events.
, it is necessary to which UE reporting measurement reports, the measurement report include Reference Signal Received Power when switching between LTE cells
（RSRP）, Reference Signal Received Quality（RSRQ）Deng, and report and be divided into report with what event triggered periodically to report.
Periodical last week is distributed by base station, the direct reporting measurement reports of UE；
Event triggering reports the event being divided between event and different system for same display system.
Event with display system includes：
1st, event A1, serving cell are better than absolute thresholding, this event can be used for closing the measurement of some minizones；
2nd, event A2, serving cell are worse than absolute thresholding, this event can be used for opening the measurement of some minizones, because
May switch etc. operations after occurring for this event；
3rd, event A3, neighbor cell are better than serving cell, this event occurs to be used for determining whether UE is switched to neighbour
Occupy cell；
4th, event A4, neighbor cell are better than absolute thresholding；
5th, event A5, serving cell is worse than an absolute thresholding and neighbor cell is better than an absolute thresholding, this when
Between can also be used to support switching.
Time between different system includes：
1st, event B1, neighbor cell are better than absolute thresholding；
2nd, event B2, serving cell is worse than an absolute thresholding and neighbor cell is better than an absolute thresholding, this thing
Part may switch etc. operations after occurring.
By the combination of said structure, invention increases one kind by radio resource control layer（RRC）Notify Radio Link
Key-course（RLC）The mode of P data packets is put in triggering state bag and triggering so that confirmation as much as possible has succeeded before switching
The uplink and downlink data packet of transmission reduces deactivating retransmission of the switching to some bags.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (6)
- A kind of 1. method for improving data transmission performance, which is characterized in that including：The radio resource control layer of user side reports a measurement report；After the wireless chain control layer of user side receives the instruction of the measurement report of the radio resource control layer of user side, in triggering Row sends uplink state bag and puts the data packet of P；After the ascending resource for receiving network distribution, user side sends the measurement report, uplink state bag and the data packet for putting P To network side；The source base station of network side switches over flow according to measurement report；Confirmed according to uplink state bag and discharge downlink data Bag；Data packet according to putting P replys user side downstream state bag；User side according to downstream state bag confirms and discharges upstream data bag.
- 2. the method for data transmission performance is improved as described in claim 1, which is characterized in that the measurement report includes：A3 Event and B2 events.
- 3. the method for data transmission performance is improved as described in claim 1, which is characterized in that in the radio resource control of user side Preparative layer reports the step of measurement report simultaneously, and the radio resource control layer of user side informs about the wireless spread-spectrum technology of user side Layer switches flow at any time.
- 4. a kind of system for improving data transmission performance, which is characterized in that including：The radio resource control layer of user side, for reporting a measurement report；The wireless chain control layer of user side, after receiving the instruction of the measurement report of the radio resource control layer of user side, Triggering uplink sends uplink state bag and puts the data packet of P；User side after receiving the ascending resource of network distribution, sends the measurement report, uplink state bag and puts P Data packet is to network side；The source base station of network side, for according to measurement report, switching over flow；Confirmed according to uplink state bag and discharge downlink Data packet；Data packet according to putting P replys user side downstream state bag；User side is additionally operable to that upstream data bag is confirmed and discharged according to downstream state bag.
- 5. the system of data transmission performance is improved as claimed in claim 4, which is characterized in that the measurement report includes：A3 Event and B2 events.
- 6. the system of data transmission performance is improved as claimed in claim 4, which is characterized in that the radio resource of the user side Key-course is additionally operable to, and the wireless chain control layer of user side is notified to switch at any time flow.
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| CN104469859B true CN104469859B (en) | 2018-06-01 |
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Families Citing this family (4)
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| WO2016187852A1 (en) * | 2015-05-27 | 2016-12-01 | 华为技术有限公司 | Method and device for user equipment switchover |
| CN107371207A (en) | 2016-05-13 | 2017-11-21 | 电信科学技术研究院 | A kind of data transmission method, UE, base station and system |
| CN111050420A (en) * | 2018-10-12 | 2020-04-21 | 联发科技（新加坡）私人有限公司 | Method for retransmitting non-access layer data packet in connection reestablishment of radio resource control |
| CN111901785A (en) * | 2020-04-09 | 2020-11-06 | 中兴通讯股份有限公司 | Energy-saving configuration method, energy-saving device, communication node and storage medium |
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| EP1903820A1 (en) * | 2006-09-20 | 2008-03-26 | Samsung Electronics Co.,Ltd. | Handover method and apparatus in a mobile communication system |
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