CN101841823B - Method and device for discontinuously monitoring control channels in multicarrier system - Google Patents
Method and device for discontinuously monitoring control channels in multicarrier system Download PDFInfo
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- CN101841823B CN101841823B CN200910080003XA CN200910080003A CN101841823B CN 101841823 B CN101841823 B CN 101841823B CN 200910080003X A CN200910080003X A CN 200910080003XA CN 200910080003 A CN200910080003 A CN 200910080003A CN 101841823 B CN101841823 B CN 101841823B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- 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
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and a device for discontinuously monitoring a control channels in a multicarrier system. The method comprises the following steps that: after receiving a DRX (Discontinuous Reception) configuration signal transmitted by the base station, the terminal monitors the control channels only on a configuration carrier configured with the continuous monitoring timer according to the indication of the DRX configuration signaling in the period of starting the continuous monitoring timer, and monitors the control channels on part or all of the carriers in the period of starting a non-activated timer, a retransmission timer or a short-period timer. The invention applies the DRX technology into the multicarrier system, such as LTE-A, and can achieve the effects of enhancing the UE power-saving property and reducing the data dispatching time delay.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the method and the device of discontinuously monitoring control channels in a kind of multicarrier system.
Background technology
In the GSM based on shared channel, the transmission of up-downgoing data generally is responsible for control by base station (eNB) scheduler, when scheduler is confirmed certain user of scheduling, will on which kind of resource, send or receive data through control channel notice terminal.Terminal (UE) monitoring control channel when detecting the schedule information that comprises self, is accomplished the transmission (up) of data or is received (descending) according to the indication on the control channel.
Under state of activation, because when the uncertain eNB in terminal dispatch it, therefore a kind of common mode of operation does, the continuous monitoring control channel in terminal is all resolved each subframe that comprises its descending scheduling control channel, is scheduled judging whether.This working method is bigger in the terminal data amount, possibly can be obtained higher efficient under the situation of frequent scheduling.Yet professional as far as some, the arrival frequency of data is lower, and the number of times that causes the terminal to be scheduled is also less, if the still continuous monitoring control channel in terminal can increase its power consumption undoubtedly.
LTE-A (LTE Advanced, improved long evolving system) requires to reach descending 1Gbps, up 500Mbps.On the bandwidth of 20Mhz, can't satisfy this demand; Therefore the LTE-A system has introduced carrier aggregation (Carrier Aggregation; CA) technology in the promptly same sub-district, concentrates in together continuous or discrete a plurality of carrier waves (being called member carrier); When needed simultaneously for the UE service, so that required speed to be provided.For the UE that guarantees LTE-A can work under the member carrier of each polymerization, each member carrier maximum is no more than 20Mhz.The CA technology of LTE-A is as shown in Figure 1.In the LTE-A sub-district shown in Figure 1, polymerization 4 member carriers.Transfer of data can be carried out with UE simultaneously in the base station on 4 member carriers, to improve throughput of system.
Among this paper, abbreviate the GSM of having used the CA technology as " multicarrier system ".At present, for multicarrier system monitoring control channel how, still there is not the feasible program of confirming.
Summary of the invention
The present invention provides the method and the device of discontinuously monitoring control channels in a kind of multicarrier system, with solve present multicarrier system how monitoring control channel do not have the problem of clear and definite scheme, can reach the effect of power saving simultaneously.
For this reason, the embodiment of the invention adopts following technical scheme:
The method of discontinuously monitoring control channels in a kind of multicarrier system comprises: the terminal receives discontinuous reception (DRX) configuration signal that the base station issues; Said terminal is according to the indication of said DRX configuration signal; During starting lasting monitoring timer; Monitoring control channel on the allocation carriers that has disposed said lasting monitoring timer only; During starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave.
Said method also comprises: the terminal receives the packet that comprises discontinuous receiver media access control unit (DRX MAC CE) that send the base station; After said terminal receives said packet, stop continue to monitor timer and non-Active Timer, and start the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
Wherein, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprising: during starting non-Active Timer, monitoring control channel on all carrier waves; Perhaps, during starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; Perhaps, the lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers.
Perhaps, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprising: during starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; Perhaps, the lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers.
Perhaps, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise: starting non-Active Timer, monitoring control channel on all carrier waves; Perhaps, during starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; Perhaps, the lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves.
Perhaps; Said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprising: during starting non-Active Timer or retransmission timer; Or in the lasting monitoring phase that starts short cycle timer; Monitor signaling through configuration, indication monitoring control channel on one or more carrier waves.
Preferably, said monitoring signaling comprises physical layer signaling, medium access control (MAC) layer signaling or Radio Resource control (RRC) signaling.
A kind of device of controlling discontinuously monitoring control channels in the multicarrier system; Comprise: the configuration signal generation unit; Be used to generate the DRX configuration signal, indicating terminal during start to continue monitoring timer, monitoring control channel on the allocation carriers of the said lasting monitoring timer of configuration only; During starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave; The configuration signal transmitting element is used for said configuration signal is sent to the terminal.
Said apparatus also comprises: the packet transmitting element; Be used for sending the packet that comprises DRX MAC CE to the terminal; Stop to continue to monitor timer and non-Active Timer; And indicating terminal starts the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
Wherein, The DRX configuration signal indicating terminal that said configuration signal generation unit generates comprises at monitoring control channel on the part or all of carrier wave during starting non-Active Timer, retransmission timer or short cycle timer: during starting non-Active Timer, and monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps, during starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps, starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves; Perhaps, during starting non-Active Timer or retransmission timer, or, monitor signaling, indication monitoring control channel on one or more carrier waves through configuration in the lasting monitoring phase that starts short cycle timer.
The device of discontinuously monitoring control channels in a kind of multicarrier system comprises: the configuration signal receiving element is used for from the base station reception DRX configuration signal; The control channel monitoring unit; Be used for according to said DRX configuration signal; During starting lasting monitoring timer; Monitoring control channel on the allocation carriers of the said lasting monitoring timer of configuration only, during starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave.
Said apparatus also comprises: the packet receiving element is used to receive the packet that comprises DRX MAC CE; Said control channel monitoring unit; When said packet receiving element receives the packet of the said DRX of comprising MAC CE; Stop to continue to monitor timer and non-Active Timer; And start the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
Wherein, Said control channel monitoring unit is during starting non-Active Timer, retransmission timer or short cycle timer; Specifically comprise at monitoring control channel on the part or all of carrier wave: during starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps, during starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps, starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves; Perhaps, during starting non-Active Timer or retransmission timer, or, monitor signaling, indication monitoring control channel on one or more carrier waves through configuration in the lasting monitoring phase that starts short cycle timer.
It is thus clear that, the present invention with the DRX technical application in multicarrier system like LTE-A, and; It is not only the DRX scheme of on all carrier waves, all using simply; But provided preferred version, specifically be, during continuing to monitor (on duration); Monitoring control channel on allocation carriers only; Between the starting period, monitoring control channel on part or all of carrier wave improves UE electricity saving performance and the effect that reduces the data dispatch time delay thereby can reach at non-Active Timer, retransmission timer or short cycle timer.
Description of drawings
Fig. 1 adopts the LTE-A system cell carrier wave sketch map of CA technology for prior art;
Fig. 2 is the DRX principle schematic;
Fig. 3 is the course of work and the correlation sketch map of each timer among the DRX;
Fig. 4 is the DRX process sketch map of UE in a kind of possible single-carrier system;
Fig. 5 is the DRX process sketch map of UE in a kind of possible multicarrier system;
Fig. 6 is the method flow diagram of discontinuously monitoring control channels in the multicarrier system of the present invention;
Fig. 7 is the inventive method embodiment one sketch map;
Fig. 8 is the inventive method embodiment two sketch mapes;
Fig. 9 is the inventive method embodiment three sketch mapes;
Figure 10 controls the device sketch map of discontinuously monitoring control channels in the multicarrier system for the present invention;
Figure 11 is the device sketch map of discontinuously monitoring control channels in the multicarrier system of the present invention.
Embodiment
In LTE-A, can reach higher transmission rate in order to make UE, UE needs the enterprising data transfer of a plurality of even whole member carriers in the sub-district simultaneously, if according to present mechanism, UE need be on all member carriers monitoring control channel.If UE is monitoring control channel on all carrier waves always, can waste more energy undoubtedly.
In order to make much of the embodiment of the invention, at first introduce discontinuous reception (Discontinuous Reception, DRX) technology.
In order to solve the power consumption problem, GSM has adopted the DRX mode of operation, under this mode of operation, and terminal periodic property control channel is monitored, thereby reach the purpose of economize on electricity.
The principle of DRX is as shown in Figure 2.Wherein the time period of On duration (monitoring the duration) expression UE monitoring control channel, open the radio-frequency channel therebetween, and continuous monitoring control channel; Remove outside the On duration At All Other Times, UE is in Sleep (dormancy) state, and its radio frequency link will be closed, and monitoring control channel no longer is to reach purpose of power saving.(Cycle) periodically appears in On Duration, and the concrete cycle is realized by the eNB configuration.For the concrete DRX of realization operates, LTE has designed multiple timer, and the automatic repeat requests of combination mixing (Hybrid Automatic Repeat Request, HARQ) process has provided the operating process under the DRX state, and the concrete introduction of relevant timer is following.
1. On Duration Timer (continue monitor timer): continuous severally can carry Physical Downlink Control Channel (Physical Downlink Control Channel, subframe PDCCH) from what the DRX cycle starting point began to count.UE need monitor PDCCH during this period, to check the resource allocation that whether has to this UE.If the terminal receives the up-downgoing scheduling during On Duration; To start other timer and carry out follow-up scheduling process; If but the terminal does not receive the up-downgoing scheduling during On Duration; Will get into the sleep state, up to next DRX cycle, On Duration Timer could receive transfer of data when starting again.
If UE receives the up-downgoing scheduling during On Duration, also possibly start following timer, indication UE further monitors PDCCH.
2. DRX Inactivity Timer (the non-Active Timer of DRX): start when receiving the PDCCH of scheduling new data, UE monitors PDCCH always between the starting period; End condition is this timer expiry or the medium access control of receiving forced termination (Media Access Control, MAC) layer signaling.
3. HARQ RTT Timer (HARQ Round Trip Timer): only to downlink transfer; Start when receiving the PDCCH of dispatching downlink data; Regular length passes the time interval for short weight, only if covered by other timer during this period, otherwise need not monitor PDCCH.
4. DRX Retransmission Timer (DRX retransmission timer): only to downlink transfer, after HRAQ RTT Timer is overtime, if preceding once transmission still decode successfully, then startup, UE monitors PDCCH always between the starting period; End condition is this timer expiry or receives the retransfer scheduling of expectation.
5. DRX Short cycle Timer (DRX short cycle timer):, allow configuration two kinds of DRX cycle:long cycle (long period) and short cycle (short period) for the characteristics that cooperate data service to arrive better.The on duration timer in two kinds of cycles is identical, but the sleep time is different.In short cycle, the sleep time is shorter relatively, UE can be quickly monitoring control channel once more.Long cycle must dispose, and is the initial condition of DRX process; Short cycle is optional.Short DRX cycle Timer is provided with and adopts the short cycle duration.After short cycle time is overtime, UE will use long cycle.
Fig. 3 has provided the course of work and the correlation of above-mentioned timer.At on duration t1 therebetween constantly, eNB has dispatched the initial transmission to process 1, so UE opens Inactivity Timer and corresponding RTT Timer1.Because the decoding of the initial transmission of Process 1 is unsuccessful, after RTT Timer was overtime, UE had opened Retransmission Timer1.
In the t2 moment, eNB has dispatched the initial transmission to Process 2, and Inactivity Timer is restarted, and opens the RTT Timer2 to Process 2 simultaneously.
In the t3 moment before Retransmission timer1 is overtime, UE has received the re-transmission to Process 1, then stop Retransmission Timer1, and open RTT Timer1.
After RTT Timer2 was overtime, the success because the initial transmission of Process 2 is not decoded was so UE opens Retransmission Timer2.In the t4 moment before Retransmission Timer2 is overtime, eNB has dispatched the re-transmission of Process 2, so UE stops Retransmission Timer2, opens RTT Timer2.
In the t5 moment before Retransmission Timer1 is overtime, eNB has continued to dispatch the re-transmission of Process 1, so Retransmission Timer1 is terminated, starts RTT Timer1 simultaneously.Before RTT Timer2 was overtime, UE was to the success of the data decode among the Process 2, so to the eNB feeding back ACK, after RTT Timer2 is overtime, also do not restart Retransmission Timer2 simultaneously.Equally, before RTT Timer1 was overtime, UE was to the success of the data decode among the Process 1, so to the eNB feeding back ACK, after RTT Timer1 is overtime, also do not restart Retransmission Timer1.
Can find out in On duration Timer, Retransmission Timer and Inactivity Timer, have any one timer to move through said process, UE is with monitoring control channel.The time of UE monitoring control channel is called Active Time again.Because the effect of a plurality of timers, the time of monitoring PDCCH possibly be extended behind On duration, even overlaps with next On duration process.
In addition; There is DRX MAC CE (MAC control element in the DRX mechanism; The medium access control unit) mechanism, its effect are after U E receives DRX MAC CE, will return to the state that adopts short DRX cycle (if configuration) or long DRX cycle immediately.Its effect be when eNB when not having follow-up data to dispatch, order UE stops on duration timer and Inactivity timer at once, if having RTT timer then monitor, otherwise entering sleep state, with further raising electricity saving performance.
For single-carrier system, LTE system for example because a sub-district has only a carrier wave, is in UE monitoring control channel a kind of maybe process as shown in Figure 4 of DRX state.
In Fig. 4:
T1:UE gets into next on duration, the beginning monitoring control channel;
T2:UE receives the control signaling of new transfer on duration, open Inactivity Timer and RTT Timer;
T3:Inactivity Timer is overtime; UE gets into long cycle (supposing not dispose short cycle);
T4:RTT Timer is overtime, because not success of initial transmission, so corresponding Retransmission Timer opens;
T5: during Retransmission Timer, received the scheduling of corresponding re-transmission, and opened RTT Timer; Retransmission Timer is terminated.
T6:RTT Timer is overtime, decodes successfully because retransmit, so do not continue to start Retransmission Timer;
T7:UE gets on duration, continues discontinuously monitoring control channels.
In the multicarrier system that adopts CA, for example in the LTE-A system, how to adopt the DRX technology, still there is not clear and definite scheme.If but based on a principle: on the member carrier (CC) of compatible LTE UE, the DRX process of LTE needs still to support that therefore a kind of possible scheme is the independently DRX process of on all CC, carrying out separately, referring to shown in Figure 5.
In the process of Fig. 5, CC1 and CC2 have disposed the DRX process, and independent separately.The transfer of data of on CC3, carrying out does not influence the DRX process of CC1 and CC2.The shortcoming that this scheme exists is, even transfer of data only occurs in wherein on the part CC, UE must be on all CC monitoring control channel, do not utilize the electricity saving performance of UE.
Therefore, in LTE-A, based on the traffic packets arrival rule same with the LTE system; Can design following DRX mechanism: during on duration; UE only monitors the control signaling on a CC, when transmission took place, UE monitored the control signaling at once on a plurality of CC.This mechanism can enlarge transmission bandwidth when the packet Batch Arrival starts all the other timers of DRX, the data of arrival are transmitted faster, and when not having data arrives, UE only need monitor a CC, compares with Fig. 5 and can improve electricity saving performance.
Referring to Fig. 6, the method flow diagram for monitoring control channel in the multicarrier system of the present invention comprises:
S601: the base station issues the DRX configuration signal to the terminal; Indicating terminal is during starting on duration timer; Monitoring control channel on the allocation carriers that has disposed said on duration timer only; During starting Inactivity Timer, Retransmission Timer or Short cycle Timer, monitoring control channel on part or all of carrier wave;
S602: the terminal receives the DRX configuration signal, and according to the indication monitoring control channel of DRX configuration signal.
Wherein, said allocation carriers is meant to start the corresponding carrier wave of on duration timer.
Describe in detail in the face of preferred process of the present invention embodiment down.
Participate in Fig. 7, be method embodiment one sketch map.
Generally, embodiment one is when on duration timer starts, monitoring control channel on allocation carriers; When Inactivity timer started, UE is monitoring control channel on all CC; During other Timer, UE is monitoring control channel on the corresponding CC of present timing device only.
Among Fig. 7, only therefore configuration on duration timer on CC3 is called allocation carriers with CC3, UE during on duration, monitoring control channel on CC3 only.
T1: get into a new on duration;
T2:UE receives the control signaling of initial transmission 1 on CC3, then on all CC, start inactivity Timer, and open corresponding RTT Timer;
T3:UE receives the control signaling of initial transmission 2 on CC2, and opens corresponding RTT Timer; Inactivity Timer on all CC will restart;
T4:Inactivity timer is overtime; On CC3, start DRX short cycle Timer (short cycle has been disposed in supposition);
The last RTT Timer of t5:CC3 is overtime, because initial transmission 1 success, so can not start corresponding Retransmission Timer;
T6:UE gets into next on duration Timer on CC3;
The last RTT Timer of t7:CC2 is overtime, because also not success of transmission 2, so will start the Retransmission Timer of correspondence.Between the starting period, UE receives the re-transmission of initial transmission 2 at this Timer, and corresponding RTT Timer is opened, and stops Retransmission timer simultaneously;
The last RTT Timer of t8:CC2 is overtime, because retransmit the success of having decoded, so do not restart Retransmission Timer;
The last short DRX cycle Timer of t9:CC3 is overtime; UE gets into next on duration (adopting long cycle) on CC3.
Sum up embodiment one, monitoring control channel is as shown in table 1 during each timer of startup DRX.
Table 1
| On?duration?timer | Monitoring control channel (CC3) on allocation carriers only |
| Inactivity?timer | Monitoring control channel on all CC (CC1, CC2, CC3) |
| Retransmission?timer | Monitoring control channel (CC2) on the CC of correspondence only |
| Short?cycle?timer | Only to the allocation carriers that continues the monitoring phase effectively (CC3) |
Wherein, only effective to allocation carriers CC3 during short cycle timer, this is because generally only the allocation carriers that has disposed on duration timer is started short cycle timer.
In embodiment one, it is necessary identical with the CC of initial transmission to suppose that HARQ retransmits, but in the discussion of LTE-A at present, whether HARQ retransmits and can occur on the carrier wave different with initial transmission, does not also confirm.In embodiment two, suppose that the HARQ re-transmission possibly occur on any one CC, so corresponding DRX process is as shown in Figure 8.
In Fig. 8, On duration timer only disposes on CC3, and UE only monitors the control signaling on CC3 during on duration.
T1: get into a new on duration;
T2:UE receives the control signaling of initial transmission 1 on CC3, then on all CC, start inactivity Timer, and open corresponding RTT Timer;
T3:UE receives the control signaling of initial transmission 2 on CC2, and opens corresponding RTT Timer; Inactivity Timer on all CC will restart;
T4:Inactivity timer is overtime; On CC3, start short DRX cycle Timer (adopting short cycle);
The last RTT Timer of t5:CC3 is overtime, because transmit 1 success, so can not start corresponding Retransmission Timer;
T6:UE gets into next on duration Timer on CC3;
The last RTT Timer of t7:CC2 is overtime, because also not success of transmission 2, so will on all CC, start Retransmission Timer.Between the starting period, UE receives the scheduling of re-transmission on CC3 at this Timer, with starting corresponding RTT Timer, stops at all CC simultaneously and goes up corresponding Retransmission timer;
The last RTT Timer of t8:CC3 is overtime, because retransmit success, so do not restart Retransmission Timer;
The last DRX short cycle Timer of t9:CC3 is overtime; UE gets into next on duration (adopting long cycle) on CC3.
Sum up embodiment two, monitoring control channel is as shown in table 2 during each timer of startup DRX.
Table 2
| On?duration?Timer | Only disposing monitoring control channel (CC3) on the CC |
| Inactivity?Timer | Monitoring control channel on all CC (CC1, CC2, CC3) |
| Retransmission?Timer | Monitoring control channel on all CC (CC1, CC2, CC3) |
| Short?cycle?Timer | Only to the configuration CC that continues the monitoring phase effectively (CC3) |
It is thus clear that the difference of table 2 and table 1 is that mainly the 4th hurdle is for the processing that starts during the Retransmission Timer.
Participate in Fig. 9, be method embodiment three sketch mapes.
In Fig. 9, only therefore configuration on duration timer on CC2 is called allocation carriers with CC2.Initial condition, UE during on duration, monitoring control channel on CC2 only.
T1: on CC2, get into a new on duration;
T2:UE receives the control signaling of initial transmission 1 on CC2, then on all CC, start inactivity Timer, and open corresponding RTT Timer;
T3:Inactivity timer is overtime; Start DRX short cycle Timer (short cycle has been disposed in supposition); Operation on duration timer during DRX short cycle Timer, UE will be on all CC monitoring control channel;
The last RTT Timer of t4:CC2 is overtime, because initial transmission 1 do not decode successfully, so will start corresponding Retransmission Timer; During Retransmission Timer, received corresponding re-transmission, Retransmission timer will be terminated, and open corresponding RTT timer;
The last RTT Timer of t5:CC2 is overtime, owing to decode successfully, will can not start the Retransmission Timer of correspondence;
T6:short DRX cycle Timer is overtime, and UE gets into next on duration (adopt long cycle, and only on CC2, monitor) on CC2.
Sum up embodiment three, monitoring control channel is as shown in table 3 during each timer of startup DRX.
Table 3
It is thus clear that, in embodiment three, in the on duration timer of short cycle Timer run duration, UE will be on all CC monitoring control channel.
Three embodiment except above-mentioned introduction also can consider following application scenarios and execution mode.
In the DRX of LTE process, the scheduling that UE has received new transfer again in (such as between the Retransmission Timer starting period) during the Active will start Inactivity Timer once more.This process equally also is possible in LTE-A.
At this moment, following possible solution can be arranged:
● regulation Inactivity/Retransmission Timer starts on all CC in standard;
● through the CC that means of signaling is monitored when starting Inactivity/Retransmission Timer/Short cycle timer by eNB flexible configuration UE, the monitoring signaling method that possibly adopt comprises:
MAC layer signaling: increase a kind of new MAC CE (Control element: form control unit);
Pass through signaling method; The CC that need specify UE to monitor in signaling, such as the principle that can adopt bitmap, each CC is corresponding with a bit; Deserved bit is changed to 1 expression UE need monitors corresponding CC, corresponding bit is changed to 0 expression UE need not monitor corresponding CC.
In LTE-A, can adopt the DRX MAC CE mechanism of similar LTE too.A kind of relatively reasonable plan is: after UE receives the packet that comprises DRX MAC CE; Stop On duration Timer and Inactivity Timer; And will on configuration CC, get into the state of short DRX cycle (if configuration) or long DRX cycle, and stop to monitor the control channel on other all CC.
Corresponding with said method, the present invention also provides a kind of device of controlling monitoring control channel in the multicarrier system.Particularly, this device can be meant base station equipment itself, also can be meant to be positioned at the inner functional entity of base station equipment, can pass through software, hardware or software and hardware combining and realize.
Referring to Figure 10, be this device internal structure sketch map of base station side, comprising:
Configuration signal generation unit 1001 is used to generate the DRX configuration signal;
This DRX configuration signal is used for indicating terminal in starting on duration timer; Monitoring control channel on the allocation carriers of configuration on duration timer only; During starting Inactivity Timer, Retransmission Timer or Short cycle Timer, monitoring control channel on part or all of carrier wave;
Configuration signal transmitting element 1002 is used for the configuration signal that configuration signal generation unit 1001 generates is sent to the terminal.
Preferably, this device also comprises:
Wherein, the DRX configuration signal indicating terminal that generates of configuration signal generation unit 1001 during starting Inactivity Timer, Retransmission Timer or Short cycle Timer on part or all of carrier wave monitoring control channel comprise:
In the lasting monitoring phase that starts Short cycle Timer, indicating terminal is monitoring control channel on said allocation carriers; Perhaps,
During starting Inactivity Timer or Retransmission Timer; Or in the lasting monitoring phase that starts Short cycle Timer; Indicating terminal on the corresponding carrier wave of said timer monitoring control channel, on all carrier waves monitoring control channel, perhaps, monitor signaling indicating terminal monitoring control channel on one or more carrier waves through configuration.
In addition, the present invention also provides the device of monitoring control channel in a kind of multicarrier system.Particularly, this device can be meant terminal equipment itself, also can be meant to be positioned at the inner functional entity of terminal equipment, can pass through software, hardware or software and hardware combining and realize.
Referring to Figure 11, be this device internal structure sketch map of end side, comprising:
Configuration signal receiving element 1101 is used for the reception configuration signal from the base station;
Control channel monitoring unit 1102; Be used for according to said configuration signal; In starting on duration timer; Monitoring control channel on the allocation carriers of configuration on duration timer only, during starting Inactivity Timer, Retransmission Timer or Short cycle Timer, monitoring control channel on part or all of carrier wave.
Preferably, this device also comprises:
At this moment; Control channel monitoring unit 1102; When packet receiving element 1103 receives the packet of the said DRX of comprising MAC CE; Stop on duration timer and Inactivity Timer, and start the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
Wherein, control channel monitoring unit 1102 is during starting Inactivity Timer, Retransmission Timer or Short cycle Timer, and monitoring control channel specifically comprises on part or all of carrier wave:
At the lasting monitoring phase that starts Short cycle Timer, monitoring control channel on said allocation carriers; Perhaps,
During starting Inactivity Timer or Retransmission Timer; Or in the lasting monitoring phase that starts Short cycle Timer; On the corresponding carrier wave of this timer monitoring control channel, on all carrier waves monitoring control channel, perhaps, monitor signaling monitoring control channel on one or more carrier waves according to the configuration that receives.
It is thus clear that, the present invention with the DRX technical application in multicarrier system like LTE-A, and; It is not only the DRX scheme of on all carrier waves, all using simply; But provided preferred version, specifically be, during on duration; Monitoring control channel on allocation carriers only; Between the starting period, monitoring control channel on part or all of carrier wave improves UE electricity saving performance and the effect that reduces the data dispatch time delay thereby can reach at Inactivity Timer, Retransmission Timer or Short cycle Timer.
The above only is a 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 (13)
1. the method for discontinuously monitoring control channels in the multicarrier system is characterized in that, comprising:
The terminal receives the discontinuous reception DRX configuration signal that the base station issues;
Said terminal is according to the indication of said DRX configuration signal; During starting lasting monitoring timer; Monitoring control channel on the allocation carriers that has disposed said lasting monitoring timer only; During starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave.
2. according to the said method of claim 1, it is characterized in that, also comprise:
The terminal receives the packet that comprises discontinuous receiver media access control unit DRX MAC CE that send the base station;
After said terminal receives said packet, stop continue to monitor timer and non-Active Timer, and start the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
3. according to claim 1 or 2 said methods, it is characterized in that, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise:
During starting non-Active Timer, monitoring control channel on all carrier waves; Perhaps,
During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; Perhaps,
The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers.
4. according to claim 1 or 2 said methods, it is characterized in that, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise:
During starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; Perhaps,
The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers.
5. according to claim 1 or 2 said methods, it is characterized in that, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise:
Starting non-Active Timer, monitoring control channel on all carrier waves; Perhaps,
During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; Perhaps,
The lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves.
6. according to claim 1 or 2 said methods, it is characterized in that, said during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise:
During starting non-Active Timer or retransmission timer, or, monitor signaling, indication monitoring control channel on one or more carrier waves through configuration in the lasting monitoring phase that starts short cycle timer.
7. according to the said method of claim 6, it is characterized in that said monitoring signaling comprises physical layer signaling, medium access control MAC layer signaling or radio resource control RRC signaling.
8. a device of controlling discontinuously monitoring control channels in the multicarrier system is characterized in that, comprising:
The configuration signal generation unit; Be used to generate discontinuous reception DRX configuration signal; Indicating terminal is during starting lasting monitoring timer; Monitoring control channel on the allocation carriers of the said lasting monitoring timer of configuration only, during starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave;
The configuration signal transmitting element is used for said configuration signal is sent to the terminal.
9. said according to Claim 8 device is characterized in that, also comprises:
The packet transmitting element; Be used for sending the packet that comprises discontinuous receiver media access control unit DRX MAC CE to the terminal; Stop to continue to monitor timer and non-Active Timer; And indicating terminal starts the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
10. according to Claim 8 or 9 said devices; It is characterized in that, the DRX configuration signal indicating terminal that said configuration signal generation unit generates during starting non-Active Timer, retransmission timer or short cycle timer on part or all of carrier wave monitoring control channel comprise:
During starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps,
During starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps,
Starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves; Perhaps,
During starting non-Active Timer or retransmission timer, or, monitor signaling, indication monitoring control channel on one or more carrier waves through configuration in the lasting monitoring phase that starts short cycle timer.
11. the device of discontinuously monitoring control channels is characterized in that in the multicarrier system, comprising:
The configuration signal receiving element is used for the discontinuous reception DRX configuration signal of reception from the base station;
The control channel monitoring unit; Be used for according to said DRX configuration signal; During starting lasting monitoring timer; Monitoring control channel on the allocation carriers of the said lasting monitoring timer of configuration only, during starting non-Active Timer, retransmission timer or short cycle timer, monitoring control channel on part or all of carrier wave.
12. according to the said device of claim 11, it is characterized in that, also comprise:
The packet receiving element is used to receive the packet that comprises discontinuous receiver media access control unit DRX MAC CE;
Said control channel monitoring unit; When said packet receiving element receives the packet of the said DRX of comprising MAC CE; Stop to continue to monitor timer and non-Active Timer; And start the short period timer or the long period timer of said allocation carriers, and monitoring control channel on said allocation carriers only.
13. according to claim 11 or 12 said devices, it is characterized in that,
Said control channel monitoring unit is during starting non-Active Timer, retransmission timer or short cycle timer, and monitoring control channel specifically comprises on part or all of carrier wave:
During starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps,
During starting non-Active Timer or retransmission timer, monitoring control channel on all carrier waves; The lasting monitoring phase during starting the short period timer, monitoring control channel on said allocation carriers; Perhaps,
Starting non-Active Timer, monitoring control channel on all carrier waves; During starting retransmission timer, monitoring control channel on the corresponding carrier wave of said retransmission timer; The lasting monitoring phase during starting the short period timer, monitoring control channel on all carrier waves; Perhaps,
During starting non-Active Timer or retransmission timer, or, monitor signaling, indication monitoring control channel on one or more carrier waves through configuration in the lasting monitoring phase that starts short cycle timer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910080003XA CN101841823B (en) | 2009-03-16 | 2009-03-16 | Method and device for discontinuously monitoring control channels in multicarrier system |
| PCT/CN2010/071069 WO2010105552A1 (en) | 2009-03-16 | 2010-03-16 | Method and apparatus for discontinuously monitoring a control channel in a multi-carrier system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910080003XA CN101841823B (en) | 2009-03-16 | 2009-03-16 | Method and device for discontinuously monitoring control channels in multicarrier system |
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| CN101841823B true CN101841823B (en) | 2012-06-27 |
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| KR101995293B1 (en) * | 2011-02-21 | 2019-07-02 | 삼성전자 주식회사 | Method and appratus of activating or deactivating secondary carriers in time division duplex mobile communication system using carrier aggregation |
| WO2012115412A2 (en) | 2011-02-21 | 2012-08-30 | Samsung Electronics Co., Ltd. | Method and apparatus for activating or deactivating secondary carriers in time division duplex mobile communication system using carrier aggregation |
| CN102917378B (en) * | 2011-08-03 | 2015-03-18 | 华为技术有限公司 | Audio monitoring control method and terminal and base station |
| CN103139931B (en) * | 2011-12-02 | 2017-11-14 | 株式会社Ntt都科摩 | A kind of method, apparatus for controlling wireless heterogeneous networks connection status and base station |
| CN103491516B (en) * | 2013-09-27 | 2018-05-15 | 东莞宇龙通信科技有限公司 | The transmission method of control signaling and base station |
| CA2938016C (en) * | 2014-01-28 | 2021-12-14 | Huawei Technologies Co., Ltd. | Channel monitoring method and device |
| CN107241169A (en) * | 2016-03-29 | 2017-10-10 | 中兴通讯股份有限公司 | Data retransmission processing method and device |
| CN109644085B (en) * | 2016-08-10 | 2021-05-18 | 华为技术有限公司 | Hybrid automatic repeat request method and terminal equipment |
| CN109246826B (en) * | 2017-06-16 | 2021-06-22 | 华为技术有限公司 | DRX configuration method, terminal equipment, network equipment and communication system |
| CN109756996B (en) * | 2017-11-03 | 2021-01-15 | 中国移动通信有限公司研究院 | Uplink transmission method, device and equipment under DRX configuration and storage medium |
| CN112655248A (en) * | 2018-09-07 | 2021-04-13 | 中兴通讯股份有限公司 | Method, apparatus and system for configuring discontinuous reception in wireless communications |
| CN111050423B (en) * | 2018-10-15 | 2022-01-04 | 维沃移动通信有限公司 | Discontinuous reception processing method and terminal |
| CN113993192B (en) * | 2018-10-31 | 2023-12-08 | 华为技术有限公司 | Wireless communication method and terminal equipment |
| CN111436098A (en) * | 2019-01-11 | 2020-07-21 | 华为技术有限公司 | Communication method and device |
| BR112022001519A2 (en) * | 2019-09-30 | 2022-03-22 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Method for receiving signal and terminal device |
| US20210135796A1 (en) * | 2019-11-05 | 2021-05-06 | Qualcomm Incorporated | Sidelink identification for multi-path downlink retransmisson |
| EP4135367A4 (en) * | 2020-04-07 | 2023-04-19 | Beijing Xiaomi Mobile Software Co., Ltd. | Wake-up time control method and device and computer-readable storage medium |
| CN113766640A (en) * | 2020-06-01 | 2021-12-07 | 华为技术有限公司 | Communication method and device |
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