CN102215553A - Processing method of carrier wave deactivation and user equipment (UE) - Google Patents
Processing method of carrier wave deactivation and user equipment (UE) Download PDFInfo
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- CN102215553A CN102215553A CN2010101612295A CN201010161229A CN102215553A CN 102215553 A CN102215553 A CN 102215553A CN 2010101612295 A CN2010101612295 A CN 2010101612295A CN 201010161229 A CN201010161229 A CN 201010161229A CN 102215553 A CN102215553 A CN 102215553A
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Abstract
The invention discloses a processing method of carrier wave deactivation and user equipment (UE). The method comprises the following steps: UE determines that a DRX (discontinuous reception) function runs on the carrier wave; when the running of the DRX function is finished, the carrier is conducted in a process of deactivation. The invention ensures the data transmission of the UE on the deactivated carrier.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of processing method and subscriber equipment of carrier wave deexcitation.
Background technology
In the Long Term Evolution (Long-Term Evolution abbreviates LTE as), the maximum downstream transmission bandwidth of system's support is 20MHz.
For higher data rate is provided to the mobile subscriber, advanced long-term evolution system (LongTerm Evolution Advance, abbreviation LTE-A) carrier aggregation technology (CarrierAggregation has been proposed, abbreviate CA as), its objective is subscriber equipment (User Equipment for having respective capabilities, abbreviate UE as) bigger broadband is provided, improve the peak rate of UE.CA gets up to support that with two or more component carrier (Component Carriers abbreviates CC as) polymerization maximum is no more than the downstream transmission bandwidth of 100MHz greater than 20MHz.
Fig. 1 is the schematic diagram according to the carrier aggregation of correlation technique, as shown in Figure 1, each component carrier that carries out carrier aggregation can be continuous (for example 20Mhz and 10Mhz are continuous carrier aggregation) on frequency domain, also can be discontinuous (for example 20Mhz and 20Mhz are discontinuous carrier aggregation).
For continuous component carrier, with respect to maximum bandwidth in the single-carrier system is the radio receiver of 20MHz, and the radio receiver (Radio Receiver architecture) that UE must have a maximum bandwidth to surpass 20MHz could receive the downlink data on a plurality of continuous component carriers simultaneously.For discontinuous component carrier, UE must have a plurality of radio receivers could receive downlink data on a plurality of discontinuous component carriers simultaneously.That is to say, with respect to single-carrier system, carry out the UE of carrier aggregation, surpass the radio receiver of 20MHz or drive a plurality of radio receivers owing to need to drive maximum bandwidth, its power consumption will enlarge markedly.
In addition, consider professional burst characteristics, though UE is operated in the bandwidth that flank speed may be used 5 carrier waves of as many as at most, but in burst gap, the practical business flow of UE seldom or approach zero receives data if UE this moment also continues to wait on a plurality of carrier waves, will cause higher unnecessary power overhead, that is, the above-mentioned power consumption that enlarges markedly will be wasted.For fear of this waste, and the operating time of prolongation UE, then need to close the radio receiver of unnecessary unlatching, thereby reduce unnecessary battery consumption, therefore, introduced the notion of carrier wave activation deexcitation in the LTE-A system.
Introduced carrier wave and activated after the notion of deexcitation, UE only receives at the enterprising line data of the carrier wave that activates, as the monitoring of Physical Downlink Control Channel (Physical Downlink ControlChannel abbreviates PDCCH as); And for temporary transient no carrier wave, the base station is by display command notice or these carrier waves of implicit rule deexcitation, on the carrier wave of deexcitation, UE does not monitor the PDCCH channel, do not receive Physical Downlink Shared Channel (PhysicalDownlink Shared Channel yet, abbreviate PDSCH as) on data, thereby reduce power consumption.
UE can be operated at the most on 5 carrier waves in connection status, when the base station is UE configuration carrier wave, can be decided to be downlink main carrier to carry (Downlink Primary Component Carrier of UE configuration approximately by explicit configuration or according to agreement, abbreviate DL PCC as) and up main carrier (Uplink Primary Component Carrier, abbreviate UL PCC as), DL PCC and UL PCC are referred to as PCC.Other work carrier waves outside the PCC are called auxilliary carrier wave (Secondary Component Carrier, abbreviate SCC as), comprise descending auxilliary carrier wave (Downlink Secondary Component Carrier, abbreviate DL SCC as) and upstream auxiliary carriers (Uplink Secondary Component Carrier, abbreviate UL SCC as), DL SCC can be activated deexcitation flexibly, as long as UL PCC and UL SCC have disposed promptly can work, and does not activate deactivation process.DL PCC is never by the base station deexcitation, UE need be on DL PCC monitoring system message; UL PCC is responsible for sending the ascending control information of physical layer, such as the up feedback to downlink data, sends uplink scheduling request (Scheduling Request abbreviates SR as), sends up channel state indication etc.DLPCC and UL PCC can have corresponding relation, and promptly DL PCC and UL PCC meet the duplex distance of LTE standard, and UL PCC is the up-link carrier of regulation in the DL PCC System information block 2 (SystemInformation Block2 abbreviates SIB2 as); Perhaps DL PCC and UL PCC can be by the base station flexible configuration, such as the base station is that UE has disposed two pairs of work carrier waves, be respectively DL CC1+ULCC1 and DL CC2+UL CC2, promptly DLCC1+UL CC1 and DL CC2+UL CC2 can constitute an independently sub-district respectively physically, in order to realize dispatching more flexibly, the DL PCC of this UE of base station configuration is DL CC1, and UL PCC is UL CC2.
Single-carrier system, for saving the power consumption of UE, the base station may be controlled (Radio Resource Control by Radio Resource, abbreviating RRC as) sublayer is that UE disposes discontinuous reception (Discontinuous Reception, abbreviate DRX as) function, with the LTE system is example, is used to control activity or the behavior that UE monitors PDCCH.Under the RRC connection status, if disposed DRX, UE is allowed to monitor discontinuously PDCCH; Otherwise UE monitors PDCCH continuously.UE is during monitoring PDCCH, the resource that can be distributed according to the PDCCH signaling or on PDSCH, receive data or go shared channel (Physical Uplink Shared Channel abbreviates PUSCH as) physically according to pre-configured resource and go up and send data.RRC configuration DRX operates required timer and relevant parameter, comprising: duration timer (onDurationTimer); DRX non-active timer (drx-InactivityTimer); Medium access control competition solves timer (mac-ContentionResolutionTimer); DRX retransmission timer (drx-RetransmissionTimer), except that down mixing self-retransmission request (HARQ) process that receives the Broadcast Control Channel special use, 1 this timer of each descending HARQ process configuration; Long DRX cycle period (longDRX-Cycle); DRX start offset value (drxStartOffset).Optionally, also have short cycle timer (drxShortCycleTimer) of DRX and short DRX cycle period (shortDRX-Cycle).Each descending HARQ process except that the descending HARQ process that receives the Broadcast Control Channel special use, also disposes a HARQ Loop Round Trip Time timer (HARQ RTT Timer).
For describing the DRX behavior of UE, introduced the notion of PDCCH subframe.For the UE of Frequency Division Duplexing (FDD) (Frequency Divided Duplex abbreviates FDD as) pattern work, the PDCCH subframe can be represented any subframe; For the UE of TDD mode (Time DividedDuplex abbreviates TDD as) work, the PDCCH subframe only refers to descending sub frame and comprises the special subframe of DwPTS.
If disposed DRX, UE can only monitor the PDCCH subframe in the DRX activity time (Active Time).Fig. 2 is the schematic diagram according to the basic functional principle of the DRX of correlation technique, as shown in Figure 2, can be decomposed into following 8 subprocess, and final ActiveTime is by these 8 sub-process synthesis decisions.
1, long DRX process: this process is the basic process of DRX.Do not need specific events trigger, the parameter by the long DRX of RRC configuration comprises long DRX cycle period, DRX start offset value and duration.UE is in the subframe that satisfies formula [(SFN*10)+subframenumber] modulo (longDRX-Cycle)=drxStartOffset, start onDurationTimer, wherein SFN is a radio frames, and subframe number is a subframe numbers, and modulo represents modulo operation.Promptly as shown in FIG., UE can be the cycle with longDRX-Cycle, and " regularly wake up " monitors PDCCH, and each " waking up " onDurationTimer length can power saving thereby reach UE, can in time receive the purpose of the data that may send again.
2, lack the DRX process: compare with long DRX, the cycle (shortDRX-Cycle) of short DRX is shorter, UE starts onDurationTimer satisfying formula [(SFN*10)+subframenumber] modulo (shortDRX-Cycle)=(drxStartOffset) modulo (shortDRX-Cycle) back, carries out PDCCH and monitors.The benefit that shortens the cycle of DRX promptly can in time receive the data that send the base station, and the base station does not need to wait a long period to send data to UE, but the harm of bringing is the power consumption that can increase UE.So will lack the DRX process among the LTE opens and and only continues for some time by the short DRX process of Event triggered.The trigger condition that short DRX process is opened is that drx-InactivityTimer is overtime or receive the DRX Command (DRX order) that sends the base station.Its basic purpose promptly, data send in a period of time after the transmission or under the expection of base station, follow-uply need to continue the possibility of transfer of data bigger, UE continues to treat in short DRX process, in order to receiving data timely.But the short DRX duration is controlled by drxShortCycleTimer, and over time promptly, UE still can enter long DRX process, can reduce power consumption.
3, detection of activity process.This process passes triggering by the head of the upstream or downstream that receive the PDCCH scheduling, the length of a drx-InactivityTimer of continuity.Be UE after transfer of data takes place, the follow-up possibility of proceeding data parameters is bigger, and UE need keep a period of time that the base station is monitored, and does not carry out the DRX dormancy in this section process.
4, process is waited in descending re-transmission.Because the characteristics of HARQ process, UE is meeting RTTtimer of HARQ process initiation for receiving downlink data after receiving downlink data dispatching, if UE does not successfully decode to received data before RTT timer is overtime, wait for that with regard to needs base station scheduling retransmits, in this process, UE carries out the DRX dormancy obviously also can not be managed, so the overtime back of RTT timer UE can start a retransmission timer, drx-RetransmissionTimer guarantees that UE is in the activity time state always in the retransmission processes.
5, conflict solution process.This process sends triggering by the Msg3 (message 3) of random access procedure, when UE inserts at random, when needing to wait for the Msg4 (message 4) that successfully confirms, it is obviously also unreasonable to enter the DRX dormancy, so in conflict solution process, UE need remain on the activity time state, finishes up to conflict solution process, and this process limits by mac-ContentionResolutionTimer.
6, SR process.The SR process is used for before the UE uplink data sending, and dispatch it the request base station.Before asking successfully, if do not receive the uplink authorization of base station, UE can send several SR continuously to the base station, and in this process, UE need keep the activity time state, causes SR pending end position up to success or failure.
7, uplink retransmission process, in the upstream data process of transmitting, UE may not receive the successful respond of base station because data send failure, carries out uplink retransmission.UE need keep the activity time state in this process, finishes up to retransmitting.
8, the non-competing downlink data that inserts is at random waited for, the non-competing access at random obtained uplink synchronous in order to trigger UE usually, then can downlink data receiving, after non-competing random process is finished, UE need keep the activity time state, till the downstream grants that receives PDCCH.
So final active time is by above 8 subprocess decision, wherein 1 and 2 can not work simultaneously, 3,4,5,6,7,8 can be with 1 or 2 concurrent, as long as finally have a process need to be in the activity time state, the then UE monitoring that can keep PDCCH in corresponding subframe.Taken into account the purpose of power saving and effective transmission thus in the LTE MAC design.
In the said process, can be divided into periodically DRX process (comprising 1) and aperiodicity DRX process (comprising 3,4,5,6,7,8).In addition, though in case the triggering back is periodic process in the time at drxShortCycleTimer, because its trigger process is a non-periodic process, so it also is summed up as aperiodicity DRX process to " the weak point DRX process " in the said process.
Therefore, introduce the carrier wave deexcitation in the multicarrier system and be in order to reduce power consumption, but simultaneously, require to have identical DRX state between the carrier wave of each activation in the carrier aggregation.The inventor finds that after the carrier wave deexcitation, the DRX process of moving on this carrier wave will be interrupted accordingly, thereby cause the transfer of data of UE on the carrier wave of this deexcitation to be lost.
Summary of the invention
After the carrier wave deexcitation, the problem of the DRX process respective interrupt of moving on the carrier wave and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of processing method and subscriber equipment of carrier wave deexcitation, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of processing method of carrier wave deexcitation.
Processing method according to carrier wave deexcitation of the present invention comprises: UE determines to have on the carrier wave DRX process in operation; When the DRX process operation finishes, to the carrier wave deexcitation.
Further, the DRX process operation finishes to comprise: UE indication or wait DRX process operation finish.
Further, UE indication DRX process finishes to comprise: UE stops the timer that the DRX process is being moved on the carrier wave; On carrier wave, UE stops to monitor physical downlink control channel PDCCH.
Further, UE waits for that the DRX process operation finishes to comprise: UE continues to monitor PDCCH, the timer expiry that the DRX process is being moved on carrier wave on carrier wave; Perhaps UE continues to monitor PDCCH on carrier wave, the transfer of data success that the DRX process is being transmitted on carrier wave.
Further, determine to have on the carrier wave DRX process before operation at UE, also comprise: UE receives the demonstration signaling from the base station, wherein, shows that signaling is used to indicate UE to the carrier wave deexcitation; Perhaps UE determines the carrier wave deexcitation by implicit rule.
Further, it is one of following that the DRX process comprises: short DRX process, and the detection of activity process, process is waited in descending re-transmission, conflict solution process, the dispatch request process, uplink retransmission process and the non-competing downlink data that inserts are at random waited for process.
To achieve these goals, according to an aspect of the present invention, also provide a kind of processing method of carrier wave deexcitation.
Processing method according to carrier wave deexcitation of the present invention comprises: to the carrier wave deexcitation; On the carrier wave of other activation except that the carrier wave of deexcitation, finish the DRX process.
Further, finish on other carrier wave in the DRX process, the PDCCH of the carrier wave of deexcitation is monitored in the UE cancellation.
To achieve these goals, according to another aspect of the present invention, provide a kind of UE.
UE according to the present invention comprises: first determination module is used for determining having on the carrier wave discontinuous reception DRX process in operation; The deexcitation module is used for when the DRX process operation finishes, to the carrier wave deexcitation.
Further, also comprise: indicating module is used to indicate the DRX process operation to finish.
To achieve these goals, according to another aspect of the present invention, also provide a kind of UE.
UE according to the present invention comprises: the deexcitation module is used for the carrier wave deexcitation; The DRX module is used for finishing the DRX process on the carrier wave of other activation except that the carrier wave of deexcitation.
By the present invention, adopt UE when the DRX process operation finishes, to the carrier wave deexcitation, solved after the carrier wave deexcitation, the problem of the DRX process respective interrupt of moving on the carrier wave has guaranteed the transfer of data of UE on the carrier wave of this deexcitation.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the carrier aggregation of correlation technique;
Fig. 2 is the schematic diagram according to the basic functional principle of the DRX of correlation technique;
Fig. 3 is the flow chart according to the processing method of the carrier wave deexcitation of first embodiment of the invention;
Fig. 4 is according to the carrier wave deexcitation of the embodiment of the invention one processing schematic diagram to the DRX process;
Fig. 5 is according to the carrier wave deexcitation of the embodiment of the invention two processing schematic diagram to the DRX process;
Fig. 6 is the flow chart according to the processing method of the carrier wave deexcitation of second embodiment of the invention;
Fig. 7 is according to the carrier wave deexcitation of the embodiment of the invention three processing schematic diagram to the DRX process;
Fig. 8 is according to the deexcitation carrier wave of the preferred embodiment of the present invention one processing schematic diagram to " the short DRX process " moved;
Fig. 9 is according to the deexcitation carrier wave of the preferred embodiment of the present invention two processing schematic diagram to " the detection of activity process " moved;
Figure 10 is the structured flowchart according to the UE of the embodiment of the invention one;
Figure 11 is the structured flowchart according to the UE of the preferred embodiment of the present invention one;
Figure 12 is the structured flowchart according to the UE of the embodiment of the invention two.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The invention provides a kind of processing method of carrier wave deexcitation, Fig. 3 is according to the flow chart of the processing method of the carrier wave deexcitation of first embodiment of the invention, comprises following step:
Step S302, UE determine to have on the carrier wave DRX process in operation.
Step S304 is when the DRX process operation finishes, to the carrier wave deexcitation.
In the correlation technique, do not consider whether DRX process on the carrier wave is moved and directly carrier wave is carried out deexcitation.When the present invention finishes operation by the DRX process on the judgement carrier wave, again carrier wave is carried out deexcitation.Like this, after the carrier wave deexcitation, can not cause the DRX process of moving on this carrier wave to interrupt accordingly, thereby guarantee the transfer of data of UE.
Preferably, the DRX process operation finishes to comprise: UE indication or wait DRX process operation finish.
Below in conjunction with Fig. 4 and Fig. 5, the process of above-mentioned UE indication DRX process operation end and the process of UE wait DRX process operation end are analyzed respectively.
(1) UE indication DRX process operation finishes.
UE indication DRX process finishes to comprise: UE stops the timer that the DRX process is being moved on the carrier wave; On carrier wave, UE stops to monitor physical downlink control channel PDCCH.
The a certain moment, UE receives the order of the one or more DL SCC of base station deexcitation, perhaps UE determines that according to implicit rule one or more DL SCC are by deexcitation, UE judges is just having relevant DRX process in operation on described one or more DL SCC, UE stops DRX process relevant on described one or more DL SCC, be that UE stops the timer that DRX process relevant on described one or more DL SCC is being moved, stop at described one or more DLSCC and go up monitoring PDCCH, the described one or more DL SCC of UE deexcitation immediately.
Fig. 4 is according to the carrier wave deexcitation of the embodiment of the invention one processing schematic diagram to the DRX process, DL SCC is activated constantly at T1 among the S401, at T3 constantly by explicit deexcitation or implicit expression deexcitation, suppose herein DL SCC T1 be activated into constantly T3 constantly by the time period of deexcitation in, DL SCC is in the activity time.Shown in the S402 of Fig. 4 the T2 of DL SCC after being activated begin constantly the DRX process (specifically can be in 7 aperiodicity DRX processes any one or a plurality of), according to the rule of LTE system, this DRX process finishes constantly up to T4.
After the carrier wave deexcitation to the processing of DRX process shown in the S403 of Fig. 4, T3 moment DLSCC is by deexcitation, UE directly stops above-mentioned DRX process, this DLSCC of deexcitation immediately, the activationary time of therefore last DL SCC is shown in the S403 of Fig. 4, be T1 to the T3 time period, UE only monitors PDCCH on this DL SCC at T1 to T3 in the time, receive the data on this DL SCC PDSCH.
Need to prove, adopt the processing method of present embodiment one, owing to directly stop the DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.Arrange according to agreement simultaneously, the base station knows that UE receives the deexcitation order or according to behind the implicit rule deexcitation carrier wave, UE will directly stop the DRX process on the deexcitation carrier wave, base station and UE can not transmit the data of finishing by follow-up retransfer scheduling process on the carrier wave that retransmits deexcitation on the carrier wave of other activation, thereby guarantee reliability of data transmission and stability, avoid loss of data.
(2) UE waits for that the DRX process operation finishes.
UE waits for that the DRX process operation finishes to comprise: UE continues to monitor PDCCH on carrier wave, the timer expiry that the DRX process is being moved on carrier wave, and perhaps UE continues to monitor PDCCH on carrier wave, the transfer of data success that the DRX process is being transmitted on carrier wave.
Fig. 5 is according to the carrier wave deexcitation of the embodiment of the invention two processing schematic diagram to the DRX process, the be activated same S401 of time of deexcitation of the DL SCC among the S501, and the DLSCC among the S502 goes up the same S402 of DRX process.After the carrier wave deexcitation to the processing of DRX process shown in S503, T3 moment DLSCC is by deexcitation, UE judges has DRX process off-duty to finish this moment on the DL SCC, deexcitation DL SCC just after the DRX process of waiting for UE finishes, the activationary time of therefore last DL SCC is shown in S503, be T1 to T4 constantly, UE monitors PDCCH on this DL SCC at T1 to T4 in the time, receive the data on this DL SCCPDSCH.
Need to prove, adopt the processing method of present embodiment two, finish again to the carrier wave deexcitation, can under the situation that guarantees the transfer of data on the carrier wave of UE in this deexcitation, guarantee stability of data transmission and reliability owing to wait for the DRX process operation.
Preferably, determine to have on the carrier wave DRX process before operation at UE, UE receives the demonstration signaling from the base station, wherein, shows that signaling is used to indicate UE to the carrier wave deexcitation; Perhaps UE determines the carrier wave deexcitation by implicit rule.
Need to prove that the present invention does not do qualification to the process of deexcitation,, can carry out deexcitation to carrier wave, also can carry out deexcitation to carrier wave by the implicit rule of UE by the explicit signaling that the base station sends according to the rule in the correlation technique.Wherein, this implicit rule comprises rules such as timer expiry.
Preferably, it is one of following that the DRX process comprises: short DRX process, and the detection of activity process, process is waited in descending re-transmission, conflict solution process, the dispatch request process, uplink retransmission process and the non-competing downlink data that inserts are at random waited for process.
The invention provides a kind of processing method of carrier wave deexcitation, Fig. 6 is according to the flow chart of the processing method of the carrier wave deexcitation of second embodiment of the invention, comprises following step:
Step S602 is to the carrier wave deexcitation.
Step S604 finishes the DRX process on the carrier wave of other activation except that the carrier wave of deexcitation.
In the correlation technique, after the carrier wave deexcitation, the DRX process of moving on this carrier wave will be interrupted accordingly, and the present invention is by continuing this DRX process of operation on the carrier wave that does not have deexcitation at other, guarantee the continuity of DRX process, thereby guaranteed the transfer of data of UE.
Need to prove some special aperiodicity DRX process that is applied to embodiment illustrated in fig. 6.Below by Fig. 7 implementation procedure embodiment illustrated in fig. 6 is described in detail.
Fig. 7 is according to the carrier wave deexcitation of the embodiment of the invention three processing schematic diagram to the DRX process.At T3 constantly, DL SCC is by deexcitation, this DL SCC of UE deexcitation immediately, but this DL SCC by deexcitation after, UE judges has DRX process off-duty to finish this moment on the DL SCC, UE continues to execute the DRX process on the carrier wave of other activation, and the activationary time of this DLSCC only arrives the T3 time for T1, being UE does not monitor PDCCH on this DL SCC at T3 to T4 in the time, do not receive the data on this DL SCC PDSCH yet.
Need to prove that the beneficial effect of present embodiment three is combining the foregoing description one and embodiment two.Adopt the processing method of present embodiment three, because immediately to the carrier wave deexcitation, can be under the situation that guarantees DRX state consistency between the carrier wave, apace to the carrier wave deexcitation, thereby save the power consumption of UE to greatest extent.Simultaneously, UE can guarantee reliability of data transmission and stability in the enterprising line data transmission of the carrier wave of other activation.
Preferably, finish on described other carrier wave in the described DRX process, the PDCCH of the carrier wave of described deexcitation is monitored in described UE cancellation.
Preferably, determine to have on the carrier wave DRX process before operation at UE, UE receives the demonstration signaling from the base station, wherein, shows that signaling is used to indicate UE to the carrier wave deexcitation; Perhaps UE determines the carrier wave deexcitation by implicit rule.
Need to prove that the present invention does not do qualification to the process of deexcitation,, can carry out deexcitation to carrier wave, also can carry out deexcitation to carrier wave by the implicit rule of UE by the explicit signaling that the base station sends according to the rule in the correlation technique.Wherein, this implicit rule comprises rules such as timer expiry.
Below in conjunction with preferred embodiment one to seven and Fig. 8 and Fig. 9, the processing method to above-mentioned DRX process is described in detail respectively.Need to prove that following each preferred embodiment all is example with the fdd mode.
Preferred embodiment one
This preferred embodiment one has been described the processing to " the short DRX process " moved of deexcitation carrier wave.
In the correlation technique, the purpose of introducing short DRX process is, in a period of time after the data transmission transmission or under the expection of base station, follow-uply need to continue the possibility of transfer of data bigger, UE continues to treat in short DRX process, in order to receiving data timely, in a single day short DRX process triggers, and its duration is determined by the drxShortCycleTimer timer.
The unlatching of short DRX process is triggered by non-periodic process, and promptly drx-InactivityTimer is overtime or receive the DRX Command that sends the base station.Short DRX process can be arranged to specific process of carrier wave or the specific process of UE.The specific process of so-called carrier wave is meant that UE is that each activates carrier wave and safeguards a drxShortCycleTimer timer, activate and trigger short DRX process on the carrier wave, UE start or or restart corresponding drxShortCycleTimer timer on this carrier wave; The specific process of so-called UE is meant that a UE only safeguards a drxShortCycleTimer timer, triggers short DRX process on any one carrier wave, and UE starts or restarts this timer.
In this preferred embodiment, carrier wave is during by deexcitation, UE according to " short DRX process " and characteristic handle accordingly.
If " short DRX process " is the specific process of carrier wave, when then carrier wave was by deexcitation, this carrier wave of UE deexcitation immediately promptly stopped to monitor the PDCCH on this carrier wave, stop the specific drxShortCycleTimer of this carrier wave simultaneously, promptly stop " short DRX process " on this carrier wave.
If " short DRX process " is the specific process of UE, when then carrier wave was by deexcitation, this carrier wave of UE deexcitation immediately promptly stop to monitor the PDCCH on this carrier wave, but UE was not done any operation to the drx-InactivityTimer timer.Preferably, if be last carrier wave that triggers short DRX process by the carrier wave of deexcitation, then UE stops drxShortCycleTimer.
Fig. 8 is according to the deexcitation carrier wave of the preferred embodiment of the present invention one processing schematic diagram to " the short DRX process " moved.The base station is that UE has disposed 3 descending carriers, and a DL PCC (not shown) and two DL SCC suppose not trigger on the DL PCC in the time shown in the figure any " short DRX process " herein.The activation deactivating operation of DL SCC1 and DLSCC2 is respectively shown in the S801 and S802 of Fig. 8.
At T1 constantly, trigger short DRX process on the DL SCC1, UE starts drxShortCycleTimer, and T2 triggers short DRX process constantly on the DL SCC2, and UE is restarted drxShortCycleTimer.T3 constantly, DL SCC1 is by deexcitation, UE stops to monitor the PDCCH on the DL SCC1, be UE deexcitation DL SCC1 immediately, stop " short DRX process " (being the dotted portion among Fig. 8) on the DL SCC1, but because drxShortCycleTimer is a UE specific timing device, so UE does not stop this timer.T4 constantly, DL SCC2 is by deexcitation, UE stops to monitor the PDCCH on the DL SCC2, be UE deexcitation DLSCC2 immediately, stop " short DRX process " (being the dotted portion among Fig. 8) on the DL SCC2, preferably, because DL SCC2 is last carrier wave that triggers the drxShortCycleTimer timer restart in this process, therefore in the T4 moment, UE stops this timer.
Need to prove that the processing method of the carrier wave deexcitation that this preferred embodiment one adopts finishes corresponding to the indication of the UE among the embodiment one aperiodicity DRX process operation.Owing to directly stop aperiodicity DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Preferred embodiment two
This preferred embodiment two has been described the processing of deexcitation carrier wave to " the detection of activity process " moved.
In the carrier aggregation, UE can be operated on maximum 5 descending carriers." detection of activity process " can be arranged to specific process of carrier wave or the specific process of UE.The specific process of so-called carrier wave is meant that UE is that each activates drx-InactivityTimer timer of carrier wave maintenance, the head that activates the upstream or downstream that receive the PDCCH scheduling on the carrier wave passes, and UE starts or restarts corresponding drx-InactivityTimer timer on this carrier wave; The specific process of so-called UE is meant that a UE only safeguards a drx-InactivityTimer timer, and any one head that activates the upstream or downstream that receive the PDCCH scheduling on carrier wave passes, and UE starts or restarts this timer.
In this preferred embodiment, carrier wave is during by deexcitation, and UE handles accordingly according to the characteristic of " detection of activity process ".
If " detection of activity process " is the specific process of carrier wave, when then carrier wave was by deexcitation, this carrier wave of UE deexcitation immediately promptly stopped to monitor the PDCCH on this carrier wave, stop the specific drx-InactivityTimer of this carrier wave simultaneously, promptly stop " detection of activity process " on this carrier wave.
If " detection of activity process " is the specific process of UE, when then carrier wave was by deexcitation, this carrier wave of UE deexcitation immediately promptly stop to monitor the PDCCH on this carrier wave, but UE was not done any operation to the drx-InactivityTimer timer.Preferably, if be that last triggers carrier wave that drx-InactivityTimer timer starts or restarts by the carrier wave of deexcitation, then UE stops drx-InactivityTimer.
Fig. 9 is according to the deexcitation carrier wave of the preferred embodiment of the present invention two processing schematic diagram to " the detection of activity process " moved.The base station is that UE has disposed 3 descending carriers, and a DL PCC and two DL SCC suppose not trigger any " detection of activity process " on the DLPCC in the time shown in the figure herein.The activation deactivating operation of DL SCC1 and DL SCC2 is respectively shown in the S901 and S902 of Fig. 9.
At T1 constantly, receive first biography of upstream or downstream of PDCCH scheduling on the DL SCC1, UE starts UE specific timing device drx-InactivityTimer, and T2 constantly, receive first biography of upstream or downstream of PDCCH scheduling on the DL SCC2, UE is restarted drx-InactivityTimer.T3 constantly, DL SCC1 is by deexcitation, the concrete deexcitation of this preferred embodiment can be explicit deexcitation or implicit expression deexcitation, UE stops to monitor the PDCCH on the DLSCC1, be UE deexcitation DL SCC1 immediately, stop " detection of activity process " (being the dotted portion among Fig. 9) on the DL SCC1, but because drx-InactivityTimer is a UE specific timing device, UE does not stop this timer.T4 constantly, DL SCC2 is by deexcitation, UE stops to monitor the PDCCH on the DL SCC2, be UE deexcitation DL SCC2 immediately, stop " detection of activity process " (being the dotted portion among Fig. 9) on the DL SCC2, preferably, because DL SCC2 is last carrier wave that triggers the drx-InactivityTimer timer restart in this process, therefore in the T4 moment, UE stops this timer.
Need to prove that the processing method of the carrier wave deexcitation that this preferred embodiment two adopts finishes corresponding to the indication of the UE among the embodiment one aperiodicity DRX process operation.Owing to directly stop aperiodicity DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Preferred embodiment three
This preferred embodiment three has been described the processing of deexcitation carrier wave to " the descending wait retransmission processes " that moving.
" descending wait retransmission processes " is based on the realization of HARQ rule, UE is meeting RTTtimer of HARQ process initiation for receiving downlink data after receiving downlink data dispatching, if UE does not successfully decode to received data before RTT timer is overtime, then RTT timer can guarantee that UE is in the activationary time state always in the retransmission processes for drx-RetransmissionTimer of this HARQ process initiation after overtime.
In this preferred embodiment, carrier wave is during by deexcitation, and UE handles " the descending wait retransmission processes " that moving accordingly according to different deexcitation modes.
Mode one
If the base station is by showing signaling deexcitation carrier wave, because of deactivation process is subjected to base stations control fully, after then UE receives the deexcitation order, directly stop the drx-RetransmissionTimer on all are moving on this carrier wave the HARQ process, this carrier wave of UE deexcitation immediately.
Need to prove that the processing method of the carrier wave deexcitation that the mode one of this preferred embodiment three adopts finishes corresponding to the indication of the UE among the embodiment one aperiodicity DRX process operation.Owing to directly stop aperiodicity DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Mode two
If UE is by implicit rule deexcitation carrier wave, after receiving the carrier wave activation command, UE starts a timer, behind this timer expiry, UE needs this carrier wave of implicit expression deexcitation, but UE judges on this carrier wave at this moment to be had " descending wait retransmission processes ", drx-RetransmissionTimer is promptly arranged in operation, then in order to guarantee that the downlink data packet of waiting for re-transmission can successfully receive, UE is this carrier wave of deexcitation immediately not, continue to monitor the PDCCH on this carrier wave, wait for the downlink data packet that retransmits up to successfully receiving, perhaps overtime up to drx-RetransmissionTimer.
Need to prove that the processing method of the carrier wave deexcitation that the mode two of this preferred embodiment three adopts waits for that corresponding to the UE among the embodiment two aperiodicity DRX process operation finishes.Finish again to the carrier wave deexcitation owing to wait for aperiodicity DRX process operation, can under the situation that guarantees the transfer of data on the carrier wave of UE in this deexcitation, guarantee stability of data transmission and reliability.
Preferred embodiment four
This preferred embodiment four has been described the processing to " the conflict solution process " moved of deexcitation carrier wave.
UE is in the RRC connection status, if lose uplink synchronous, UE need initiate random access procedure and regain uplink synchronous with the base station.Random access procedure is according to the characteristic of the random access guiding of UE use, can be divided into inserting at random and non-competing access at random of competition, wherein competition inserts at random except the uplink synchronous of obtaining UE, also need the solution process of conflicting, in conflict solution process, UE need remain on the activationary time state, finishes up to conflict solution process, and this process limits by mac-ContentionResolutionTimer.
In carrier aggregation, if UE has lost the uplink synchronous with the base station, just on a pair of up-downgoing carrier wave, insert at random, if this moment, this descending carrier was shown deexcitation by the base station, or UE determines this descending carrier needs deexcitation according to implicit rule, and then UE can handle " conflict solution process " in the following ways:
This descending carrier of mode one, UE deexcitation immediately stops mac-ContentionResolutionTimer.
Need to prove that the processing method of the carrier wave deexcitation that the mode one of this preferred embodiment four adopts finishes corresponding to the indication of the UE among the embodiment one aperiodicity DRX process operation.Owing to directly stop aperiodicity DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Mode two, UE be this descending carrier of deexcitation immediately not, continues to monitor the PDCCH on this descending carrier, finishes up to " conflict solution process ".That is, for showing deexcitation, UE ignores received deexcitation order, and for the implicit expression deexcitation, UE ignores the information of deexcitation timer expiry, finishes up to " conflict solution process ".
Need to prove that the processing method of the carrier wave deexcitation that the mode two of this preferred embodiment four adopts waits for that corresponding to the UE among the embodiment two aperiodicity DRX process operation finishes.Finish again to the carrier wave deexcitation owing to wait for aperiodicity DRX process operation, can under the situation that guarantees the transfer of data on the carrier wave of UE in this deexcitation, guarantee stability of data transmission and reliability.
Preferred embodiment five
This preferred embodiment five has been described the processing of deexcitation carrier wave to " the SR process " moved.
In the carrier aggregation, regulation SR can and only can send to the base station on UL PCC, and the base station can be gone up at the descending carrier (being the DL SCC of DL PCC and any one activation) of any one activation and send uplink authorization to UE after the SR that receives the UE transmission.Therefore in the SR process of transmitting, UE receives the base station and shows when deexcitation carrier wave or UE judge needs deexcitation carrier wave according to implicit rule the described carrier wave of UE deexcitation immediately.Because DL PCC is never by deexcitation, the uplink authorization that the base station sends to UE can send to UE on DL PCC, so deexcitation DL SCC can not influence the SR process, also be certain SCC by deexcitation after, UE continues to finish the SR process.
Need to prove that the processing method of the carrier wave deexcitation that this preferred embodiment five adopts is finished the DRX process corresponding to the UE among the embodiment three on the carrier wave of other activation.Because immediately to the carrier wave deexcitation, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.Simultaneously, UE can guarantee reliability of data transmission and stability in the enterprising line data transmission of the carrier wave of other activation.
Preferred embodiment six
This preferred embodiment six has been described the processing of deexcitation carrier wave to " the uplink retransmission process " moved.
In the upstream data process of transmitting, UE may carry out uplink retransmission because data send failure or do not receive the successful respond of base station.UE need keep the activationary time state in this process, finishes up to retransmitting.
In multicarrier system, an independently HARQ entity is arranged all on each up-link carrier.In this preferred embodiment, the base station is engraved in scheduling UL SCC1 on the DL SCC1 when T1, UE is sending on the UL SCC1 before upstream data do not receive replying of base station as yet according to the scheduling of DL SCC1, DL SCC1 is by explicit or implicit expression deexcitation, and UE can adopt " the uplink retransmission process " on the following method processing UL SCC1:
Mode one, UE be deexcitation DL SCC1 immediately, stops to monitor the PDCCH on the DL SCC1.UE is defaulted as the successful reception response that received the base station, and (acknowledge, ACK) preferred, UE can empty the data in the HARQ buffer memory (HARQ buffer) of UL SCC1.
Need to prove that the processing method of the carrier wave deexcitation that the mode one of this preferred embodiment six adopts finishes corresponding to the indication of the UE among the embodiment one aperiodicity DRX process operation.Owing to directly stop aperiodicity DRX process, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Mode two, UE be deexcitation DL SCC1 immediately, stops to monitor the PDCCH on the DL SCC1.UE does not empty the data among the HARQ buffer of UL SCC1, thinks the response that does not receive the base station.
In the mode two, DL SCC1 is during by deexcitation, UE does not empty the data among the HARQ buffer, if therefore subsequent base stations activated DL SCC1 again before UE empties HARQ buffer, perhaps the base station is by DL SCC2 scheduling UL SCC1, and then UE can continue to finish this " uplink retransmission process " on UL SCC1.
Need to prove that the processing method of the carrier wave deexcitation that the mode two in this preferred embodiment six adopts is finished the DRX process corresponding to the UE among the embodiment three on the carrier wave of other activation.Because immediately to the carrier wave deexcitation, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.Simultaneously, UE can guarantee reliability of data transmission and stability in the enterprising line data transmission of the carrier wave of other activation.
Mode three, UE be deexcitation DL SCC1 immediately, stops to monitor the PDCCH on the DL SCC1.UE continues to carry out non-self-adapting and retransmits on UL SCC1, be UE continue T1 constantly DL SCC1 dispatch on the UL SCC1 resource to UE and carry out uplink retransmission, though this moment, DL SCC1 was by deexcitation, UE does not monitor the PDCCH on the DL SCC1, but UE can receive physical mixed self adaptation retransmission indicating chanel (the Physical Hybrid ARQ Indicator CHannel of base station at DL SCC1 according to T1 schedule information constantly, abbreviate PHICH as) on feedback information, thereby guarantee " uplink retransmission process " normal termination.
Need to prove that the processing method of the carrier wave deexcitation that the mode three in this preferred embodiment six adopts is transmitted at the enterprising line data of the carrier wave of other activation corresponding to the UE among the embodiment one.Because immediately to the carrier wave deexcitation, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.
Mode four, UE be deexcitation DL SCC1 immediately not, but continues to monitor the PDCCH on the DL SCC1, finishes up to " uplink retransmission process ".
Need to prove that the processing method of the carrier wave deexcitation that the mode four of this preferred embodiment six adopts waits for that corresponding to the UE among the embodiment two aperiodicity DRX process operation finishes.Finish again to the carrier wave deexcitation owing to wait for aperiodicity DRX process operation, can under the situation that guarantees the transfer of data on the carrier wave of UE in this deexcitation, guarantee stability of data transmission and reliability.
Preferred embodiment seven
This preferred embodiment seven has been described the processing of deexcitation to " the non-competing downlink data that inserts is at random waited for process " moved.
In the LTE system, UE needs to keep the activationary time state in the process of finishing uplink synchronous wait downlink data dispatching.
In multicarrier system, UE is after having finished uplink synchronous on a pair of up-downgoing carrier wave, the base station can send downstream grants to UE on the descending carrier of any one activation, therefore in " the non-competing downlink data that inserts is at random waited for process ", UE receives the base station and shows when deexcitation carrier wave or UE judge needs deexcitation carrier wave according to implicit rule the described carrier wave of UE deexcitation immediately.Because DL PCC is never by deexcitation, the downstream grants that the base station sends to UE can send to UE on DL PCC, so deexcitation DL SCC can not influence " the non-competing downlink data that inserts is at random waited for process ".
Need to prove that the processing method of the carrier wave deexcitation that this preferred embodiment seven adopts is finished the DRX process corresponding to the UE among the embodiment three on the carrier wave of other activation.Because immediately to the carrier wave deexcitation, can be apace to the carrier wave deexcitation, thus save the power consumption of UE to greatest extent.Simultaneously, UE can guarantee reliability of data transmission and stability in the enterprising line data transmission of the carrier wave of other activation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
The present invention also provides a kind of UE.Figure 10 is according to the structured flowchart of the UE of the embodiment of the invention, comprising: first determination module 102 and deexcitation module 104.
First determination module 102 is used for determining having on the carrier wave discontinuous reception DRX process in operation.Deexcitation module 104 is connected to first determination module 102, is used for when determination module 102 determines that the DRX process operation finishes, to the carrier wave deexcitation.
In the correlation technique, do not consider whether DRX process on the carrier wave is moved and directly carrier wave is carried out deexcitation.When the present invention finishes operation by the DRX process on first determination module, the 102 judgement carrier waves, carry out deexcitation by 104 pairs of carrier waves of deexcitation module again.Like this, after the carrier wave deexcitation, can not cause the DRX process of moving on this carrier wave to interrupt accordingly, guarantee UE reliability of data transmission and stability.
Figure 11 is the structured flowchart of UE according to the preferred embodiment of the invention.This UE also comprises receiver module 112, the second determination modules 114, indicating module 116 and data transmission module 118.
Receiver module 112 is connected to first determination module 102, is used to receive the demonstration signaling from the base station, wherein, shows that signaling is used to indicate UE to the carrier wave deexcitation; Second determination module 114 is connected to first determination module 102, is used for determining the carrier wave deexcitation by implicit rule.Indicating module 116, be connected to first determination module 102 and deexcitation module 104, be used for determining to have on the carrier wave discontinuous reception DRX process after operation at first determination module 102, indication DRX process operation finishes, and drives 104 pairs of carrier wave deexcitations of deexcitation module.
The present invention also provides a kind of UE.Figure 12 is according to the structured flowchart of the UE of the embodiment of the invention two, comprising: deexcitation module 122 and DRX module 124.
Deexcitation module 122 is used for the carrier wave deexcitation; DRX module 124 is connected to deexcitation module 122, is used for finishing on the carrier wave of other activation outside the carrier wave of removing active module 122 deexcitations the DRX process.
In the correlation technique, after the carrier wave deexcitation, the DRX process of moving on this carrier wave will be interrupted accordingly, the present invention does not have to continue on the carrier wave of deexcitation this DRX process of operation by DRX module 124 at other, guarantee the continuity of DRX process, thereby guaranteed the transfer of data of UE on the carrier wave of this deexcitation.
Need to prove that the UE that describes among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum, the invention provides a kind of processing method and subscriber equipment of carrier wave deexcitation, in the time of can realizing the carrier wave deexcitation and the collaborative work between the DRX process, and reach the deexcitation carrier wave and realize the maximized design original intention that satisfies each subprocess of DRX simultaneously of UE power consumption service efficiency.According to the abovementioned embodiments of the present invention, adopt UE when the DRX process operation finishes, to the carrier wave deexcitation, solved after the carrier wave deexcitation, the problem of the DRX process respective interrupt of moving on the carrier wave has guaranteed the transfer of data of UE on the carrier wave of this deexcitation.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the processing method of a carrier wave deexcitation is characterized in that, comprising:
User equipment (UE) determines to have on the carrier wave discontinuous reception DRX process in operation;
When described DRX process operation finishes, to described carrier wave deexcitation.
2. method according to claim 1 is characterized in that, described DRX process operation finishes to comprise:
Described UE indicates or waits for that described DRX process operation finishes.
3. method according to claim 2 is characterized in that, described UE indicates described DRX process to finish to comprise:
Described UE stops the timer that the above DRX process of described carrier wave is being moved;
On described carrier wave, described UE stops to monitor physical downlink control channel PDCCH.
4. method according to claim 2 is characterized in that, described UE waits for that described DRX process operation finishes to comprise:
Described UE continues to monitor PDCCH on described carrier wave, the timer expiry that is moving up to the above DRX process of described carrier wave; Perhaps
Described UE continues to monitor PDCCH on described carrier wave, the transfer of data of transmitting up to the above DRX process of described carrier wave is successful.
5. method according to claim 1 is characterized in that, determines to have on the described carrier wave described DRX process before operation at described UE, also comprises:
Described UE receives the demonstration signaling from the base station, and wherein, described demonstration signaling is used to indicate described UE to described carrier wave deexcitation; Perhaps
Described UE determines described carrier wave deexcitation by implicit rule.
6. according to each described method in the claim 1 to 5, it is characterized in that it is one of following that described DRX process comprises:
Short DRX process, the detection of activity process, process is waited in descending re-transmission, conflict solution process, the dispatch request process, uplink retransmission process and the non-competing downlink data that inserts are at random waited for process.
7. the processing method of a carrier wave deexcitation is characterized in that, comprising:
To described carrier wave deexcitation;
On the carrier wave of other activation except that the carrier wave of described deexcitation, finish described DRX process.
8. method according to claim 7 is characterized in that, finishes on described other carrier wave in the described DRX process, and the PDCCH of the carrier wave of described deexcitation is monitored in described UE cancellation.
9. a user equipment (UE) is characterized in that, comprising:
First determination module is used for determining having on the carrier wave discontinuous reception DRX process in operation;
The deexcitation module is used for when described DRX process operation finishes, to described carrier wave deexcitation.
10. UE according to claim 9 is characterized in that, also comprises:
Indicating module is used to indicate described DRX process operation to finish.
11. a user equipment (UE) is characterized in that, comprising:
The deexcitation module is used for described carrier wave deexcitation;
The DRX module is used for finishing described DRX process on the carrier wave of other activation except that the carrier wave of described deexcitation.
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Application publication date: 20111012 |