CN101730137B - Data processing method and system - Google Patents
Data processing method and system Download PDFInfo
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- CN101730137B CN101730137B CN2008102175005A CN200810217500A CN101730137B CN 101730137 B CN101730137 B CN 101730137B CN 2008102175005 A CN2008102175005 A CN 2008102175005A CN 200810217500 A CN200810217500 A CN 200810217500A CN 101730137 B CN101730137 B CN 101730137B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/20—Manipulation of established connections
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Abstract
The invention discloses a data processing method. The method comprises the following steps of: when UE receives a message indicating that new downstream data arrives, starting an RTT timer of a receiving end; after the RTT timer of the receiving end is overtime, starting a retransmission timer of the receiving end; and after the retransmission timer of the receiving end is overtime, if the decoding of the downstream data fails, starting the RTT timer of the receiving end. The embodiment of the invention also discloses a data processing system. Through setting a starting condition and a stopping condition for each timer, the embodiment can solve the problem of data transmission failure caused by the loss of a PDCCH message so as to improve the transmission performance.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to data processing method and system in the communication system.
Background technology
In Long Term Evolution (LTE, the Long Term Evolution) system, (UserEquipment, (Discontinuous reception, DRX) mechanism is to reach purpose of power saving UE) can to adopt discontinuous reception for subscriber equipment.According to DRX mechanism, UE does not receive data in certain preset period, be in sleep state thereby for example close receiver, and UE after this preset period " waking up " keeps watch on reception or the transmission that whether has data, if not then UE keeps sleep state.Therefore, can the DRX cycle of the UE that be in connected state (RRC_CONNECTED) be divided into active stage (onduration) and sleep period (sleep).
If receiving in active stage, UE is used to indicate the base station to send PDCCH (the Physical Downlink Control Channel of downlink data; Physical Downlink Control Channel) message; Then UE starts receiving terminal timer two-way time (RTT timer, HARQ RTT Timer), at receiving terminal RTT (Round-Trip Time; Two-way time) timer run duration, UE is in sleep state.When the success of UE downlink data receiving, UE will stop this receiving terminal RTT timer, and send acknowledge message ACK and give the base station; When the UE downlink data receiving is failed, this receiving terminal RTT timer will continue timing until overtime; UE starts receiving terminal retransmission timer (DRX Retransmission Timer).At receiving terminal retransmission timer run duration, UE is in active state, and search receives the PDCCH message that is used to indicate above-mentioned downlink data re-transmission.UE stops the receiving terminal retransmission timer after receiving the PDCCH message that is used to indicate downlink retransmitted data to arrive, and starts receiving terminal RTT timer.
The base station will start transmitting terminal RTT timer after sending and being used to indicate the PDCCH message of sending downlink data.If at this transmitting terminal RTT timer run duration; The base station does not receive the affirmation message of UE; Then the base station is behind transmitting terminal RTT timer expiry; Start the transmitting terminal retransmission timer, and send data retransmission to UE at this transmitting terminal retransmission timer run duration, and the PDCCH message that is used to indicate downlink retransmitted data arrival.After the base station is sent this and is used to indicate the PDCCH message that downlink retransmitted data arrives, start transmitting terminal RTT timer.
The inventor finds that in realizing process of the present invention there is following problem in prior art: send the base station be used to indicate the PDCCH message that downlink retransmitted data arrives after, will think that this PDCCH message is laggard goes into the sleep state receiving at the terminal.If this PDCCH information drop-out, then the receiving terminal retransmission timer of UE is still moving, and receiving terminal RTT timer does not start, and promptly UE is in active state, does not get into sleep state.Like this, step-out appears in the DRX state of base station and both sides, terminal.The base station sends PDCCH message possibly for dormant UE, causes UE to miss the PDCCH message that send the base station, thereby misses descending reception or up transmission, causes transmission performance to reduce.
Summary of the invention
Data processing method that the embodiment of the invention provides and system can solve the technical problem that causes transmission performance to reduce by the PDCCH information drop-out that is used to indicate downlink retransmitted data to arrive.
The embodiment of the invention provides a kind of data processing method, and this method comprises: user equipment (UE) starts receiving terminal RTT timer when receiving the message of the new downlink data arrival of indication; The base station starts transmitting terminal RTT timer when sending said new downlink data; Said UE starts the receiving terminal retransmission timer behind receiving terminal RTT timer expiry; Said base station starts the transmitting terminal retransmission timer behind transmitting terminal RTT timer expiry; Said UE is after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer; Said base station starts transmitting terminal RTT timer in the overtime back of transmitting terminal retransmission timer.
The embodiment of the invention also provides a kind of data processing method; This method comprises: user equipment (UE) is receiving when being used to indicate the message that new downlink data arrives; Start receiving terminal RTT timer, and behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer; The base station starts transmitting terminal RTT timer when sending said new downlink data, behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer; Said UE starts supervision timer after the receiving terminal retransmission timer is overtime, and after the success of decoding downlink data, stops supervision timer; The duration of supervision timer is the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer; Said base station stops the transmitting terminal retransmission timer behind the data retransmission that sends downlink data, and starts transmitting terminal RTT timer.
The embodiment of the invention also provides a kind of data handling system, and this system comprises: user equipment (UE) is used for when receiving the message of the new downlink data arrival of indication, starting receiving terminal RTT timer; Behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer; And after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer; And the base station is used for when sending said new downlink data, starting transmitting terminal RTT timer; Behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer; And at the overtime back startup of transmitting terminal retransmission timer transmitting terminal RTT timer.
The embodiment of the invention also provides a kind of data handling system; This system comprises: user equipment (UE) is used for starting receiving terminal RTT timer receiving when being used to indicate the message that new downlink data arrives; And behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer; And after the receiving terminal retransmission timer is overtime, start supervision timer, and after the success of decoding downlink data, stop supervision timer; The base station is used for when sending said new downlink data, starting transmitting terminal RTT timer, behind transmitting terminal RTT timer expiry, starts the transmitting terminal retransmission timer; And behind the data retransmission that sends downlink data, stop the transmitting terminal retransmission timer, and start transmitting terminal RTT timer.
Present embodiment can solve the data transmission fails problem that the PDCCH information drop-out causes through startup and stop condition are set perhaps for UE is provided with supervision timer for each timer, thereby improves transmission performance.
Description of drawings
A kind of data processing method flow chart that Fig. 1 provides for the embodiment of the invention one;
A kind of data processing method flow chart that Fig. 2 provides for the embodiment of the invention two.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 1, for the embodiment of the invention one provides a kind of schematic flow sheet of data processing method, this method comprises the steps:
S101, UE start receiving terminal RTT timer when receiving the PDCCH message of the new downlink data arrival of indication;
Accordingly, above-mentioned base station starts transmitting terminal RTT timer when sending new downlink data; Need to prove that if this moment, the transmitter end of base station retransmission timer moved, then the base station stops the transmitting terminal retransmission timer;
Wherein, receiving terminal RTT length of timer equates with transmitter end of base station RTT length of timer.
S102, UE start the receiving terminal retransmission timer behind receiving terminal RTT timer expiry;
Accordingly, above-mentioned base station starts the transmitting terminal retransmission timer behind transmitting terminal RTT timer expiry;
Wherein, the duration of receiving terminal retransmission timer equates with the duration of transmitter end of base station retransmission timer;
It is pointed out that UE starts the receiving terminal retransmission timer in this step behind receiving terminal RTT timer expiry, be meant that UE is the trigger condition of receiving terminal RTT timer expiry as startup receiving terminal retransmission timer; UE does not receive the downlink data that sends with this PDCCH message the base station perhaps will cause UE to this downlink data decoding failure receiving terminal RTT timer expiry.
S103, UE are after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer;
Accordingly, above-mentioned base station starts transmitting terminal RTT timer in the overtime back of transmitting terminal retransmission timer.
In the present embodiment, UE will circulate and carry out S102 and S103, decode successfully until the UE downlink data.If UE before downlink data is decoded successfully, receives the PDCCH message that the new downlink data of next indication arrives, then UE jumps to S101.
Present embodiment starts and stop condition through being provided with for each timer, can solve the data transmission fails problem that the PDCCH information drop-out causes, thereby improves transmission performance.
As shown in Figure 2, for the embodiment of the invention two provides a kind of schematic flow sheet of data processing method, this method comprises the steps:
S201, UE start receiving terminal RTT timer receiving when being used to indicate the PDCCH message that new downlink data arrives; Behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer;
Accordingly, above-mentioned base station starts transmitting terminal RTT timer when sending above-mentioned downlink data, behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer.
Wherein, receiving terminal RTT length of timer equates with transmitter end of base station RTT length of timer.
S202, UE start supervision timer after the receiving terminal retransmission timer is overtime; The duration of this supervision timer is the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer;
Accordingly, above-mentioned base station stops the transmitting terminal retransmission timer behind the data retransmission that sends downlink data, and starts transmitting terminal RTT timer.
S203, UE stop supervision timer after the success of decoding downlink data.
Present embodiment is through increasing the supervision timer of UE side, makes UE be in active state when sending next PDCCH message in the base station, thereby solves the data transmission fails problem that the PDCCH information drop-out causes, and improves transmission performance.
In the embodiment of the invention three, network side exists waits for the downlink data that sends to UE.The data handling procedure of present embodiment comprises the steps:
PDCCH message and downlink data are sent in S301, base station, and start transmitting terminal RTT timer; UE receives PDCCH message and downlink data, and starts receiving terminal RTT timer.
Wherein, PDCCH message is used to indicate that the base station sends is new downlink data, promptly non-data retransmission.For example, PDCCH message and the downlink data that send in same subframe the base station, UE can be known according to PDCCH message and receive new downlink data, rather than the data retransmission of downlink data.
Concrete, suppose the base station at T31 constantly to the UE transmission PDCCH message and the downlink data that are in active state, UE receives PDCCH message and downlink data constantly at T31, thereby makes the RTT timer of base station and UE start at synchronization.
S302, UE fail to the downlink data decoding that receives, and send non-acknowledge message NACK to the base station; The base station receives this NACK, and behind transmitting terminal RTT timer expiry, starts the transmitting terminal retransmission timer.
Concrete, UE at a time sends NACK, is assumed to be T32 constantly; The base station receives this NACK constantly at T32, and waits for transmitting terminal RTT timer expiry.Suppose that transmitting terminal RTT timer is constantly overtime at T33, then the base station starts the transmitting terminal retransmission timer constantly at T33.
In the present embodiment; Can receiving terminal RTT timer be preset as identical duration with transmitting terminal RTT timer; Then receiving terminal RTT timer is also constantly overtime at T33, and this moment, UE started the receiving terminal retransmission timer, thereby made the retransmission timer of base station and UE start at synchronization.
The PDCCH message of indication data retransmission arrival and the data retransmission of downlink data are sent to UE in S303, base station.
Wherein, PDCCH message is used to indicate that the base station sends is the data retransmission of downlink data.For example, PDCCH message and the downlink data that send in same subframe the base station, UE can be known the data retransmission of receiving downlink data according to PDCCH message, rather than new downlink data.
Concrete, in a certain moment of transmitting terminal retransmission timer run duration, for example the T33 moment, the base station is sent and is used to indicate the PDCCH message of downlink retransmitted data arrival and the data retransmission of downlink data to give UE.
In the present embodiment, this PDCCH information drop-out, then UE can not receive this PDCCH message, just can't know data arrives is arranged yet, and therefore can not receive data retransmission.
After S304, transmitter end of base station retransmission timer are overtime, base station initiated transmitting terminal RTT timer.
Wherein, suppose that the receiving terminal retransmission timer is constantly overtime at T34.
Concrete, the base station in the preset period of time of T33 after constantly (for example T33 constantly and T34 between the moment) do not receive the feedback (ACK or NACK) of UE, then the base station starts transmitting terminal RTT timer constantly at the overtime T34 of transmitting terminal retransmission timer.
In the present embodiment; Can the receiving terminal retransmission timer be preset as identical duration with the transmitting terminal retransmission timer; Then the receiving terminal retransmission timer is also constantly overtime at T34, and this moment, UE started receiving terminal RTT timer, thereby made the RTT timer of base station and UE start at synchronization.
The data retransmission of PDCCH message and downlink data is sent in S305, base station to UE.
Concrete, the base station starts the transmitting terminal retransmission timer behind transmitting terminal RTT timer expiry, and at transmitting terminal retransmission timer run duration, sends the PDCCH message of indicating downlink data retransmission and the data retransmission of downlink data to UE.
S306, UE receive this PDCCH message and data retransmission, and after decoding successfully, send acknowledge message ACK to the base station.
In the present embodiment; Through being that the duration of transmitting terminal RTT timer and retransmission timer equates with the corresponding timer duration of receiving terminal; And, each timer starts and stop condition for being provided with; The discontinuous reception that can keep network side and user side solves the data transmission fails problem that the PDCCH information drop-out that is used to indicate downlink retransmitted data to arrive causes, thereby improves transmission performance regularly synchronously.
In the embodiment of the invention four, UE is provided with a supervision timer PDCCH Lost Timer.The process of present embodiment is following:
S401-402, similar with S301-302 repeats no more.
S403, base station stop the transmitting terminal retransmission timer, and start transmitting terminal RTT timer to the data retransmission that UE sends PDCCH message and downlink data; UE starts supervision timer after the receiving terminal retransmission timer is overtime.
Wherein, this PDCCH message is used to indicate downlink retransmitted data to arrive;
Concrete, in this step, the base station need not to wait for that the transmitting terminal retransmission timer is overtime, but behind the data retransmission that sends PDCCH message and downlink data, just stops the transmitting terminal retransmission timer; And UE does not receive this PDCCH message and data retransmission, and then UE starts supervision timer after the receiving terminal retransmission timer is overtime.
In this step, the duration of supervision timer is set to the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer.
Behind S404, the transmitter end of base station RTT timer expiry, base station initiated transmitting terminal retransmission timer; After UE sends PDCCH message and downlink retransmitted data, stop the transmitting terminal retransmission timer, and start transmitting terminal RTT timer.
Wherein, the base station does not receive the feedback of UE in preset period of time, and then the base station starts the transmitting terminal retransmission timer behind transmitting terminal RTT timer expiry; The base station will be at this transmitting terminal retransmission timer run duration, and transmission is used to indicate the PDCCH message of downlink retransmitted data arrival and the data retransmission of downlink data.
S405, UE are in active state at the supervision timer run duration, receive PDCCH message and data retransmission, and after decoding successfully, stop supervision timer, send acknowledge message to the base station simultaneously; After the base station receives this acknowledge message, stop transmitting terminal RTT timer.
In the present embodiment; UE starts supervision timer when not receiving the PDCCH message of indication re-transmission; Make UE be in active state when sending next PDCCH message in the base station; Be in sleep state when having avoided sending PDCCH message in the base station and miss this PDCCH message and data retransmission, thereby solve the data transmission fails problem that the PDCCH information drop-out causes, improve transmission performance owing to UE.
Need to prove that the data processing method that various embodiments of the present invention provide is not only applicable to the LTE system, also be applicable to the communication system that there is discontinuous receiving mode in other.
A kind of system that the embodiment of the invention five provides, this system comprises user equipment (UE) and base station, wherein:
Above-mentioned UE is used for when receiving the message of the new downlink data arrival of indication, starting receiving terminal RTT timer; Behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer; And after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer; And,
Above-mentioned base station is used for when sending said new downlink data, starting transmitting terminal RTT timer; Behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer; And at the overtime back startup of transmitting terminal retransmission timer transmitting terminal RTT timer.
In the present embodiment, receiving terminal RTT length of timer equates that with transmitter end of base station RTT length of timer the duration of receiving terminal retransmission timer equates with the duration of transmitter end of base station retransmission timer.
The system that present embodiment provides can solve the data transmission fails problem that the PDCCH information drop-out causes, thereby improves transmission performance.
A kind of system that the embodiment of the invention six provides, this system comprises user equipment (UE) and base station, wherein:
Above-mentioned UE is used for starting receiving terminal RTT timer, and behind receiving terminal RTT timer expiry, starting the receiving terminal retransmission timer receiving when being used to indicate the message that new downlink data arrives; And after the receiving terminal retransmission timer is overtime, start supervision timer, and after the success of decoding downlink data, stop supervision timer; Wherein, the duration of supervision timer is the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer;
Above-mentioned base station is used for when sending said new downlink data, starting transmitting terminal RTT timer, behind transmitting terminal RTT timer expiry, starts the transmitting terminal retransmission timer; And behind the data retransmission that sends downlink data, stop the transmitting terminal retransmission timer, and start transmitting terminal RTT timer.
In the present embodiment, receiving terminal RTT length of timer equates that with transmitter end of base station RTT length of timer the duration of receiving terminal retransmission timer equates with the duration of transmitter end of base station retransmission timer.
The system that present embodiment provides can solve the data transmission fails problem that the PDCCH information drop-out causes, thereby improves transmission performance.
It below only is preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. a data processing method is characterized in that, this method comprises:
User equipment (UE) starts receiving terminal RTT two-way time timer when receiving the message of the new downlink data arrival of indication;
The base station starts transmitting terminal RTT timer when sending said new downlink data;
Said UE starts the receiving terminal retransmission timer behind receiving terminal RTT timer expiry;
Said base station starts the transmitting terminal retransmission timer behind transmitting terminal RTT timer expiry;
Said UE is after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer;
Said base station starts transmitting terminal RTT timer in the overtime back of transmitting terminal retransmission timer.
2. method according to claim 1 is characterized in that, this method also comprises:
Receiving terminal RTT length of timer equates with transmitter end of base station RTT length of timer; And
The duration of receiving terminal retransmission timer equates with the duration of transmitter end of base station retransmission timer.
3. according to claim 1 or 3 described methods, it is characterized in that this method also comprises:
Before said UE decoded successfully to said downlink data, when receiving the message of the new downlink data of next indication, said UE started receiving terminal RTT timer.
4. a data processing method is characterized in that, this method comprises:
User equipment (UE) starts receiving terminal RTT timer, and behind receiving terminal RTT timer expiry, starts the receiving terminal retransmission timer receiving when being used to indicate the message that new downlink data arrives;
The base station starts transmitting terminal RTT timer when sending said new downlink data, behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer;
Said UE starts supervision timer after the receiving terminal retransmission timer is overtime, and after the success of decoding downlink data, stops supervision timer;
The duration of supervision timer is the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer;
Said base station stops the transmitting terminal retransmission timer behind the data retransmission that sends downlink data, and starts transmitting terminal RTT timer.
5. method according to claim 4 is characterized in that, this method also comprises:
Receiving terminal RTT length of timer equates with transmitter end of base station RTT length of timer; And
The duration of receiving terminal retransmission timer equates with the duration of transmitter end of base station retransmission timer.
6. a data handling system is characterized in that, this system comprises:
User equipment (UE) is used for when receiving the message of the new downlink data arrival of indication, starting receiving terminal RTT timer; Behind receiving terminal RTT timer expiry, start the receiving terminal retransmission timer; And after the receiving terminal retransmission timer is overtime, if downlink data decoding failure then starts receiving terminal RTT timer; And,
The base station is used for when sending said new downlink data, starting transmitting terminal RTT timer; Behind transmitting terminal RTT timer expiry, start the transmitting terminal retransmission timer; And at the overtime back startup of transmitting terminal retransmission timer transmitting terminal RTT timer.
7. a data handling system is characterized in that, this system comprises:
User equipment (UE) is used for starting receiving terminal RTT timer, and behind receiving terminal RTT timer expiry, starting the receiving terminal retransmission timer receiving when being used to indicate the message that new downlink data arrives; And after the receiving terminal retransmission timer is overtime, start supervision timer, and after the success of decoding downlink data, stop supervision timer;
The base station is used for when sending said new downlink data, starting transmitting terminal RTT timer, behind transmitting terminal RTT timer expiry, starts the transmitting terminal retransmission timer; And behind the data retransmission that sends downlink data, stop the transmitting terminal retransmission timer, and start transmitting terminal RTT timer.
8. system according to claim 7 is characterized in that, the duration of said supervision timer is the duration and the receiving terminal RTT length of timer sum of receiving terminal retransmission timer.
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| CN2008102175005A CN101730137B (en) | 2008-10-31 | 2008-10-31 | Data processing method and system |
| PCT/CN2009/074256 WO2010048848A1 (en) | 2008-10-31 | 2009-09-27 | Data processing method and system |
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| CN2008102175005A CN101730137B (en) | 2008-10-31 | 2008-10-31 | Data processing method and system |
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| CN101730137A CN101730137A (en) | 2010-06-09 |
| CN101730137B true CN101730137B (en) | 2012-04-04 |
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| WO (1) | WO2010048848A1 (en) |
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| EP3513520A4 (en) | 2016-10-13 | 2020-05-13 | Telefonaktiebolaget LM Ericsson (publ) | Method, device and computer program for data transmission feedback in a wireless communication system |
| CN108255515B (en) * | 2018-01-17 | 2021-02-02 | 广州汇智通信技术有限公司 | Method and device for realizing timer service |
| WO2022077174A1 (en) * | 2020-10-12 | 2022-04-21 | Oppo广东移动通信有限公司 | Wireless communication method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387346A (en) * | 2001-05-21 | 2002-12-25 | 华为技术有限公司 | Method for using active time in general wireless packet service system |
| CN101296432A (en) * | 2007-04-28 | 2008-10-29 | 中兴通讯股份有限公司 | Method for user's set entering into incontinuous receiving condition |
-
2008
- 2008-10-31 CN CN2008102175005A patent/CN101730137B/en active Active
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- 2009-09-27 WO PCT/CN2009/074256 patent/WO2010048848A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387346A (en) * | 2001-05-21 | 2002-12-25 | 华为技术有限公司 | Method for using active time in general wireless packet service system |
| CN101296432A (en) * | 2007-04-28 | 2008-10-29 | 中兴通讯股份有限公司 | Method for user's set entering into incontinuous receiving condition |
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| CN101730137A (en) | 2010-06-09 |
| WO2010048848A1 (en) | 2010-05-06 |
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