CN102215552A - Method and device for receiving multi-carrier discontinuous scheduling - Google Patents

Method and device for receiving multi-carrier discontinuous scheduling Download PDF

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Publication number
CN102215552A
CN102215552A CN2010101468557A CN201010146855A CN102215552A CN 102215552 A CN102215552 A CN 102215552A CN 2010101468557 A CN2010101468557 A CN 2010101468557A CN 201010146855 A CN201010146855 A CN 201010146855A CN 102215552 A CN102215552 A CN 102215552A
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carrier wave
drx
active state
timer
state
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施小娟
黄亚达
陈思
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ZTE Corp
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ZTE Corp
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Priority to CN2010101468557A priority Critical patent/CN102215552A/en
Priority to PCT/CN2010/077629 priority patent/WO2011120291A1/en
Publication of CN102215552A publication Critical patent/CN102215552A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and device for receiving multi-carrier discontinuous scheduling and belongs to the field of communication. The method comprises: user equipment (UE) detects that multiple carriers are in an activated state; the UE configures a timer for the multiple carriers; and according to the state of the timer or the current discontinuous reception (DRX) process, the UE sets that the multiple carriers are all in a DRX active state. According to the method, the problem that each activated carrier can not be guaranteed to have the same DRX state after the activation and deactivation mechanism is introduced into the multiple carrier can be solved, and the good backward compatibility [such as compatible LTE (Long Term Evolution) system] of the system is guaranteed.

Description

The method of reseptance of multicarrier discontinuously dispatching and device
Technical field
The present invention relates to the communications field, in particular to a kind of method of reseptance and device of multicarrier discontinuously dispatching.
Background technology
For higher data rate is provided to the mobile subscriber, advanced long-term evolution system (LongTerm Evolution Advance, LTE-A) carrier aggregation technology (Carrieraggregation has been proposed, CA), its objective is to having the subscriber equipment (UserEquipment of respective capabilities, UE) provide bigger broadband, improve the peak rate of UE.Among the LTE, the maximum downstream transmission bandwidth of system's support is 20MHz, carrier aggregation is with two or more component carrier (Component Carriers, CC) polymerization gets up to support greater than 20MHz, maximum is no more than the downstream transmission bandwidth of 100MHz, and adopting the LTE-A system of carrier aggregation technology is a kind of multicarrier system.
Each component carrier that carries out carrier aggregation can be continuous on frequency domain, also can be discontinuous, as shown in Figure 1.For discontinuous component carrier, UE needs a plurality of radio receivers (Radio Receiver architecture) could receive the downlink data on a plurality of discontinuous component carriers simultaneously; For component carrier continuous on frequency domain, with respect to maximum bandwidth in the single-carrier system is the radio receiver of 20MHz, UE needs radio receiver that a maximum bandwidth surpasses 20MHz could receive downlink data on a plurality of continuous component carriers simultaneously, that is to say with respect to single-carrier system, carry out the UE of carrier aggregation, its power consumption will be very considerable.
Therefore 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, receive data if UE this moment also continues to wait on a plurality of carrier waves, will cause higher power overhead.In order to prolong the operating time of UE, close the radio receiver of unnecessary unlatching, reduce unnecessary battery consumption, introduced the notion of carrier wave activation deexcitation in the LTE-A system.UE only receives at the enterprising line data of the carrier wave that activates, as Physical Downlink Control Channel (Physical Downlink Control Channel, monitoring PDCCH); 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 (Physical Downlink SharedChannel yet, PDSCH) data on, thus reach purpose of power saving.
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, DL PCC) and up main carrier (Uplink Primary Component Carrier, UL PCC), DL PCC and UL PCC are referred to as PCC, other work carrier waves outside the PCC are called auxilliary carrier wave (SecondaryComponent Carrier, SCC), comprise descending auxilliary carrier wave (DL SCC) and upstream auxiliary carriers (UL SCC), DL SCC can be activated deexcitation flexibly, as long as UL PCC and ULSCC have disposed promptly and can work, do 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, and such as the up feedback to downlink data, (Scheduling Request SR), sends up channel state indication etc. to send the uplink scheduling request.DL PCC 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 DL PCC System information block 2 (SystemInformation Block2, SIB2) up-link carrier of middle regulation; Perhaps DL PCC and ULPCC 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.
For saving battery/power consumption of UE, base station in the single-carrier system may be controlled (Radio Resource Control by Radio Resource, RRC) sublayer is that UE disposes discontinuous reception (Discontinuous Reception, DRX) 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 during monitoring PDCCH, the resource that can be distributed according to the PDCCH signaling or on PDSCH, receives data or go shared channel physically that (Physical Uplink Shared Channel PUSCH) goes up the transmission data according to pre-configured resource.
The inventor finds, activating deexcitation mechanism controls at single carrier wave, the base station can be according to business demand and wireless resource management algorithm (Radio ResourceManagement, RRM) activate deexcitation DL SCC neatly, and after the correlation technique introducing activation deexcitation mechanism, can not guarantee to have identical DRX state between each activation carrier wave, and then can not guarantee the backwards compatibility of UE well, can not well save the battery consumption of UE under the multicarrier.
Summary of the invention
Main purpose of the present invention is to provide a kind of method of reseptance and device of multicarrier discontinuously dispatching, to address the above problem at least.
According to an aspect of the present invention, provide a kind of method of reseptance of multicarrier discontinuously dispatching, having comprised: the user equipment (UE) inspection is current to have a plurality of carrier waves to be in state of activation; Described UE is described a plurality of carrier wave configuration timer; Described UE is provided with described a plurality of carrier wave and all is in the DRX active state according to described timer state or the discontinuous reception of present located DRX process.
According to a further aspect in the invention, provide a kind of receiving system of multicarrier discontinuously dispatching, having comprised: check module, being used to check currently has a plurality of carrier waves to be in state of activation; Configuration module is used to described a plurality of carrier wave configuration timer; Module is set, is used for described a plurality of carrier wave being set all being in the DRX active state according to described timer state or the discontinuous reception of present located DRX process.
By the present invention, according to timer state or the discontinuous reception of present located DRX process, a plurality of carrier waves that setting is in state of activation all have identical DRX state, solved in the multicarrier introduce activate deexcitation mechanism after, can not guarantee that each activates between carrier wave and has identical DRX state issues, and then guarantee the good backwards compatibility of system (as compatible LTE system).
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 carrier aggregation schematic diagram according to correlation technique;
Fig. 2 is the receiving system structured flowchart of the multicarrier discontinuously dispatching that provides of the embodiment of the invention;
Fig. 3 is the receiving system structured flowchart of the another kind of multicarrier discontinuously dispatching that provides of the embodiment of the invention;
Fig. 4 is the method for reseptance flow chart of the multicarrier discontinuously dispatching that provides of the embodiment of the invention;
Fig. 5 is the embodiment of the invention one an overloading wavelength DRX process schematic diagram;
Fig. 6 is the schematic diagram of the short DRX process of multicarrier in the embodiment of the invention two schemes one; And
Fig. 7 is the schematic diagram of the short DRX process of multicarrier in the embodiment of the invention two schemes two.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention is after introducing activation deexcitation mechanism, and each activates between carrier wave has identical DRX state, promptly guarantees to have identical activity time and inactive time between each activation carrier wave.Based on this, a kind of receiving system of multicarrier discontinuously dispatching is provided, referring to Fig. 2, the receiving system structured flowchart of the multicarrier discontinuously dispatching that provides for the embodiment of the invention.This device comprises: check module 202, configuration module 204 and module 206 is set.
Check module 202, being used to check currently has a plurality of carrier waves to be in state of activation; Configuration module 204 is coupled to checks module 202, is used to above-mentioned a plurality of carrier wave configuration timer; Module 206 is set is coupled to configuration module 204, be used for above-mentioned a plurality of carrier wave being set all being in the DRX active state according to timer state or the discontinuous reception of present located DRX process.
Wherein, the receiving system of above-mentioned multicarrier discontinuously dispatching can or be arranged on the UE for UE.
In carrier aggregation, present embodiment all has identical DRX state by a plurality of carrier waves that module 204 setting is set is in state of activation, can make receiving system (for example UE) simplicity of design of multicarrier discontinuously dispatching, the good backwards compatibility of assurance system (as compatible LTE system), simultaneously, present embodiment is simpler to the modification of protocol specification.
According to the embodiment of the invention, provide the receiving system of another kind of multicarrier discontinuously dispatching.The receiving system structured flowchart of the another kind of multicarrier discontinuously dispatching that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, this device comprises to be checked module 202, configuration module 204, module 206 is set and monitors module 208; Wherein, check that module 202, configuration module 204 are identical with Fig. 2 with the function that module 206 is set, here detailed description no longer.Monitoring module 208 is coupled to module 206 is set, and is used for the active state at DRX, monitors the physical downlink control channel PDCCH of above-mentioned a plurality of carrier waves.
Preferably, the timer of present embodiment configuration module 204 configurations can be a duration timer, the receiving system of multicarrier discontinuously dispatching can only dispose this duration timer, after the timer configuration was finished, the receiving system of multicarrier discontinuously dispatching can be the cycle to start duration timer with first duration; At the duration timer run duration, above-mentioned a plurality of carrier wave is set is in the DRX active state.
In carrier aggregation, present embodiment by configuration module 204 configuration the timer state or all have identical DRX state according to a plurality of carrier waves that present located DRX process is provided with activation, can make receiving system (for example UE) simplicity of design of multicarrier discontinuously dispatching, guarantee good backwards compatibility (as compatible LTE system), simultaneously, UE monitors the physical downlink control channel PDCCH of above-mentioned a plurality of carrier waves in the DRX active state, make the power consumption of UE lower, and present embodiment is simpler to the modification of protocol specification.
The receiving system of corresponding above-mentioned multicarrier discontinuously dispatching provides a kind of method of reseptance of multicarrier discontinuously dispatching, and this method describes to be embodied as example on UE.Fig. 4 is the method for reseptance flow chart of the multicarrier discontinuously dispatching that provides according to the embodiment of the invention, and as shown in Figure 4, this method may further comprise the steps:
Step 402:UE inspection is current to have a plurality of carrier waves to be in state of activation;
Step 404:UE is a plurality of carrier wave configuration timers;
Wherein, for a plurality of carrier wave configuration timers can be provided with a timer, also can a timer all be set for each carrier wave;
Step 406:UE is provided with above-mentioned a plurality of carrier wave and all is in the DRX active state according to timer state or the discontinuous reception of present located DRX process.
It is the DRX inactive state that the embodiment of the invention is defaulted as the time beyond the DRX active state.Need to prove, the embodiment of the invention is not done qualification to the process that activates deexcitation, according to the mechanism in the correlation technique, the base station can be activated carrier wave by explicit signaling or implicit rule, can come carrier wave is carried out deexcitation by explicit signaling or timer.
The embodiment of the invention comprises that also the base station is the relevant parameter of UE configuration DRX by the RRC sublayer, and concrete parameter comprises: 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).
Preferably, above-mentioned is that a plurality of carrier waves configuration timers comprise: be duration timers of a plurality of carrier waves configurations, said method also comprises: with first duration (for example long DRX cycle period or short DRX cycle period) is the cycle to start duration timer; Step 406 is included in the duration timer run duration, and UE is provided with above-mentioned a plurality of carrier wave and all is in the DRX active state.Preferably, above-mentioned is that a plurality of carrier waves configuration timers comprise that: UE is that above-mentioned a plurality of carrier wave disposes a DRX non-active timer drx-InactivityTimer respectively; Said method also comprises: after receiving the first biography scheduling of upstream or downstream from current carrier wave, UE starts or restarts the drx-InactivityTimer of described current carrier wave; Step 406 comprises: have at least the drx-InactivityTimer of a carrier wave to be in running status in above-mentioned a plurality of carrier waves, UE is provided with above-mentioned a plurality of carrier wave and all is in the DRX active state.
Preferably, above-mentioned is that a plurality of carrier waves configuration timers comprise: UE is drx-InactivityTimer of above-mentioned a plurality of carrier wave configurations; Method also comprises: after UE received that upstream or downstream are first and passes scheduling from any carrier wave, UE started or restarts drx-InactivityTimer; Step 406 comprises: drx-InactivityTimer run duration, UE are provided with above-mentioned a plurality of carrier wave and all are in the DRX active state.
In the DRX active state, UE monitors the above-mentioned physical downlink control channel PDCCH that is in a plurality of carrier waves of state of activation.
The UE of present embodiment is set to have identical DRX state by a plurality of carrier waves that are in state of activation, can make the UE simplicity of design, the good backwards compatibility of assurance system (as compatible LTE system), and simultaneously, present embodiment is simpler to the modification of protocol specification.
For describing the DRX behavior of UE, present embodiment has been introduced the PDCCH subframe, and for the UE of Frequency Division Duplexing (FDD) (FDD, Frequency Divided Duplex) pattern work, the PDCCH subframe can be represented any subframe; For the UE of TDD mode (TDD, Time DividedDuplex) work, the PDCCH subframe only refers to descending sub frame and comprises the special subframe of DwPTS (Downlink Pilot Time Slot, descending pilot frequency time slot).The UE of present embodiment has disposed DRX, and UE will monitor the PDCCH subframe in the DRX activity time (Active Time).
The DRX activity time can be decomposed into following 8 subprocess, and the final DRX activity time is by these 8 sub-process synthesis decisions.Below 8 subprocess simply are described below:
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 (longDRX-Cycle), DRX start offset value (drxStartOffset) and duration (onDurationTimer).UE is in the subframe that satisfies formula [(SFN*10)+subframe number] modulo (longDRX-Cycle)=drxStartOffset, start onDurationTimer, wherein SFN is a radio frames, and subframe number is a subframe numbers, and modulo represents modulo operation.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.Shorten the cycle of DRX, UE can in time receive the data that send the base station, the base station does not need to wait a long period to send data to UE, and 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.Factor is according in a period of time that sends after the transmission or under the expection of base station, follow-uply need to continue the possibility of transfer of data bigger, and UE continues to be in short DRX process, in order to receiving data timely.The short DRX duration is controlled by drxShortCycleTimer, and over time promptly, UE still can enter long DRX process, can further 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 does not carry out the DRX dormancy, so the overtime back of RTT timer UE can start a retransmission timer drx-RetransmissionTimer, guarantees that UE is in active state in the retransmission processes always.
5, conflict solution process: this process is by the Msg3 (Message3 of random access procedure, message three) send triggering, when UE inserts at random, when needing to wait for the Msg4 (Message4, message four) that successfully confirms, UE does not carry out the DRX dormancy, in conflict solution process, UE need remain on active 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 active state, till successful or failure cause SR pending to finish.
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 active state in this process, finishes up to retransmitting.
8, the non-competing downlink data that inserts is at random waited for process, 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 active state, till the downstream grants that receives PDCCH.
The final activity time of present embodiment is determined by above 8 subprocess, 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 active state, the then UE monitoring that can keep PDCCH in corresponding subframe.Present embodiment is defined as periodically DRX process with 1, and 3,4,5,6,7,8 are defined as aperiodicity DRX process, and 2 are defined as the periodicity DRX process that aperiodicity triggers, and has taken into account the purpose of power saving and effective transmission thus in the LTE MAC design.
After realizing introducing activation deexcitation mechanism, each activates between the carrier wave has identical DRX state, the embodiment of the invention is according to the characteristic of different DRX subprocess, subprocess is arranged to specific process of UE and/or the specific process of carrier wave, but, if no special instructions, the RRC sublayer is when the above-mentioned DRX parameter of configuration, can only dispose above-mentioned set of parameter for UE, also be the mechanism that the process of RRC sublayer configuration DRX parameter can continue to use the LTE system, thereby when realizing having identical DRX state between each activation carrier wave, guarantee the good backwards compatibility of RRC agreement.
Below based on the basic functional principle of the existing DRX of LTE system, respectively to periodicity DRX process, how the periodicity DRX process that aperiodicity triggers realizes in the aperiodicity DRX process that each activates and has identical DRX state between carrier wave and describe.
Embodiment one
Present embodiment is that example describes with periodicity DRX process (promptly long DRX process), after in multicarrier system, introducing carrier wave activation deexcitation mechanism, in order to realize having identical DRX state between each activation carrier wave, in the present embodiment, long DRX process setting is the specific process of UE, but not the specific process of carrier wave, be UE in the subframe that satisfies formula [(SFN*10)+subframe number] modulo (longDRX-Cycle)=drxStartOffset, start onDurationTimer, in long DRX process, the onDurationTimer run duration, DL PCC and all activated DL SCC are in active state, otherwise DLPCC and all activated DL SCC are in inactive state, thereby have realized respectively activating in the long DRX process DRX state identical between the carrier wave.
As shown in Figure 5, the base station is that UE has disposed 3 descending carriers, and PCC and two DL SCC (DL SCC1 and DL SCC2), the activationary time of DL SCC1 and DL SCC2 are shown in heavy line among the figure, and the corresponding carrier wave of imaginary point line expression is in deactivation status.Long DRX process is shown in S501 among the figure, T1 and T3 constantly UE satisfy the entry condition of onDurationTimer, UE starts this timer, at the onDurationTimer run duration, DL PCC and the DL SCC1 that is in activated state, DL SCC2 is in active state, other times DL PCC and DL SCC1, DL SCC2 is in inactive state, as shown in Figure 5, S501, S502 and S503 show respectively according to during the specific long DRX process of embodiment of the invention UE, DL PCC, the DRX state of DL SCC1 and DL SCC2, because DL PCC can be by deexcitation, so the S501 DRX state of UE in the present embodiment just.
The UE of present embodiment is in long DRX process, the a plurality of carrier waves that are in state of activation according to onDurationTimer are set to have identical DRX state, can further reduce the power consumption of UE, also make the UE simplicity of design, the good backwards compatibility of assurance system (as compatible LTE system), simultaneously, present embodiment is simpler to the modification of protocol specification.
Embodiment two
The periodicity DRX process that present embodiment triggers with aperiodicity (promptly short DRX process) is that example describes, after in multicarrier system, introducing carrier wave activation deexcitation mechanism, in order to realize having identical DRX state between each activation carrier wave, present embodiment provides the method for reseptance of following two kinds of schemes explanation multicarrier discontinuously dispatching.
The specific process of carrier wave is arranged in the operation of scheme one, drx-InactivityTimer and drxShorrCycleTimer.
As shown in Figure 6, the base station is that UE has disposed 3 descending carriers, and PCC and two DL SCC (DL SCC1 and DL SCC2), the activationary time of DL SCC1 and DL SCC2 are shown in heavy line among the figure, and the corresponding carrier wave of imaginary point line expression is in deactivation status.Long DRX process is shown in S601 among the figure, and long DRX process is identical with the method that embodiment one provides, and present embodiment repeats no more.Relation between onDurationTimer in the short DRX process and short DRX cycle period is shown in S602 among the figure, promptly in case trigger the short DRX process of having enabled, then UE starts onDurationTimer in the subframe that satisfies formula [(SFN*10)+subframe number] modulo (shortDRX-Cycle)=(drxStartOffset) modulo (shortDRX-Cycle).
In the scheme one, the specific process of carrier wave is arranged in the operation of drx-InactivityTimer and drxShortCycleTimer, the Event triggered of short DRX is arranged to the specific process of carrier wave, the drx-InactivityTimer and the drxShortCycleTimer of each carrier wave independent maintenance oneself.
As shown in Figure 6, T1 moment UE has received the descending scheduling (DL assignment) of a new data on DL SCC1, then UE starts drx-InactivityTimer-SCC1 on DL SCC1, T3 constantly, drx-InactivityTimer-SCC1 is overtime, UE enables short DRX process, opens drxShortCycleTimer-SCC1 on DL SCC1.Similarly, at T2 constantly, received the descending scheduling of a new data on the DL SCC2, UE starts drx-InactivityTimer-SCC2 on DL SCC2, drx-InactivityTimer-SCC2 is overtime constantly for T4, UE reactivates (because T3 has enabled the DRX process constantly) short DRX process, opens drxShortCycleTimer-SCC2 on DL SCC2.
In the T5 moment, DL SCC2 is by deexcitation, and UE stops the PDCCH of DL SCC2 is monitored, and stops drxShortCycleTimer-SCC2 simultaneously.In the T6 moment, DL SCC 1 is by deexcitation, and UE stops the PDCCH of DL SCC1 is monitored, and stops drxShortCycleTimer-SCC1 simultaneously.
The method of reseptance of this programme multicarrier discontinuously dispatching is: in above process, the drx-InactivityTimer run duration on any one carrier wave, UE will be provided with DL PCC and all be in active state with the DL SCC1, the DL SCC2 that are in activated state; After any one carrier wave has triggered short DRX process, at the onDurationTimer run duration, UE will be provided with DL PCC and be in active state with the DL SCC1, the DL SCC2 that are in activated state, S603, S604, S605 show respectively according to this programme one and set specific drx-InactivityTimer and the drxShortCycleTimer of carrier wave as shown in Figure 6, the DRX state of DLSCC1, DL SCC2 and DL PCC in the short DRX process, because DL PCC can be by deexcitation, so the S605 DRX state of UE in this programme just.
Equally for receiving that DRX COMMAND triggers the situation of enabling short DRX, drxShortCycleTimer also can be arranged to the specific timer of carrier wave, receive DRX COMMAND on any one carrier wave, then UE enables short DRX process, starts the drxShortCycleTimer on this carrier wave.
In the present embodiment drxShortCycleTimer overtime after, UE can enable long DRX process, in this programme, preferably, the drxShortCycleTimer on carrier wave is overtime, and UE judges whether the drxShortCycleTimer that is moving is arranged on other carrier waves, if have, just enable long DRX after last drxShortCycleTimer such as UE is overtime, if do not have, UE directly starts long DRX process.
The UE of present embodiment is in short DRX process, be each carrier wave configuration drx-InactivityTimer, the a plurality of carrier waves that are in state of activation according to drx-InactivityTimer are set to have identical DRX state, can make the UE simplicity of design, the good backwards compatibility of assurance system (as compatible LTE system), simultaneously, present embodiment is simpler to the modification of protocol specification.
The specific process of UE is arranged in the operation of scheme two, drx-InactivityTimer and drxShortCycleTimer.
As shown in Figure 7, the base station is that UE has disposed 3 descending carriers, PCC and two DL SCC (DL SCC1 and DL SCC2), and the activationary time of DL SCC1 and DL SCC2 is shown in heavy line among the figure.Long DRX process is shown in S701 among the figure, and the relation between onDurationTimer in the short DRX process and short DRX cycle period is shown in S702 among the figure, and its process repeats no more with the elaboration of scheme one herein.
In the scheme two, the specific process of UE is arranged in the operation of drx-InactivityTimer and drxShortCycleTimer, each UE only safeguards a drx-InactivityTimer timer and a drxShortCycleTimer timer, and the Event triggered of short DRX still is arranged to the specific process of carrier wave.
As shown in Figure 7, long DRX process is shown in S701 among the figure, and long DRX process is identical with the method that embodiment one provides, and present embodiment repeats no more.Relation between onDurationTimer in the short DRX process and short DRX cycle period with identical in the scheme one, no longer describes in detail shown in S702 among the figure here.T1 moment UE has received the descending scheduling of a new data on DL SCC1, then UE starts the specific drx-InactivityTimer of UE.In the T2 moment, UE has received the descending scheduling of a new data on DL SCC2, and then UE is restarted the specific drx-InactivityTimer of UE.T3 constantly, the specific drx-InactivityTimer of UE is overtime, UE enables short DRX process, opens the specific drxShortCycleTimer timer of UE.
The T4 moment and the T5 moment, DL SCC1 and DL SCC2 are respectively by deexcitation, and UE stops the PDCCH of DL SCC1 and DL SCC2 is monitored, but UE specific timing device drx-InactivityTimer and drx ShortCycleTimer are not carried out any operation.
The method of reseptance of this programme multicarrier discontinuously dispatching is: in above process, drx-InactivityTimer run duration, UE will be provided with DL PCC and all be in active state with the DL SCC1, the DL SCC2 that are in activated state; After any one carrier wave has triggered short DRX process, at the onDurationTimer run duration, UE will be provided with DL PCC and be in active state with the DL SCC1, the DL SCC2 that are in activated state, S703, S704, S705 show respectively according to this programme two and set specific drx-InactivityTimer and the drxShortCycleTimer of UE as shown in Figure 7, the DRX state of DL SCC1, DL SCC2 and DL PCC in the short DRX process, because DL PCC can be by deexcitation, so the S705 DRX state of UE in this programme just.
Equally for receiving that DRX COMMAND triggers the situation of enabling short DRX, drxShortCycleTimer also can be arranged to the specific timer of UE, receive DRX COMMAND on any one carrier wave, then UE enables short DRX process, starts drxShortCycleTimer.
The UE of present embodiment is in short DRX process, UE only disposes a drx-InactivityTimer, the a plurality of carrier waves that are in state of activation according to drx-InactivityTimer are set to have identical DRX state, can make the UE simplicity of design, the good backwards compatibility of assurance system (as compatible LTE system), simultaneously, present embodiment is simpler to the modification of protocol specification.
Embodiment three
Present embodiment is that example describes with aperiodicity DRX process, the periodicity DRX process that triggers except the aperiodicity of the periodicity DRX process of embodiment one and embodiment two, aperiodicity DRX process comprises descending re-transmission wait process, conflict solution process, the SR process, uplink retransmission process and the non-competing downlink data that inserts are at random waited for process, and how present embodiment realizes in above-mentioned aperiodicity DRX process that multicarrier has identical DRX state and describes respectively after introducing the activation deactivation process.
One, process is waited in descending re-transmission
In multicarrier system, an independently HARQ entity is all arranged on each descending carrier, present embodiment is introduced carrier wave activation deexcitation mechanism in multicarrier system after, in order to realize having identical DRX state between each activation carrier wave, descending re-transmission wait process is set to the specific process of each carrier wave HARQ process in the present embodiment, be that RTT timer and drx-RetransmissionTimer are arranged to each carrier wave HARQ process specific timing device, there is descending re-transmission to wait for that process is in operation on any one carrier wave, be drx-RetransmissionTimer to be arranged in operation on any one HARQ process of any one carrier wave, UE will be provided with the DL SCC that DL PCC and all are in activated state and be in active state.
Two, conflict solution process
In multicarrier system, the base station can dispose random access resource on a plurality of carrier waves for UE, in order to realize that each activated identical DRX state between the carrier wave after introducing carrier wave activated deexcitation mechanism, if the base station allows the UE synchronization many up-downgoing carrier wave to be inserted simultaneously at random; UE above-mentionedly manyly disposes medium access control competition respectively to every pair of carrier wave in the up-downgoing carrier wave and solves timer mac-ContentionResolutionTimer; UE is after sending message three Msg3 of random access procedure on the up-link carrier, and UE starts the mac-ContentionResolutionTimer of this up-link carrier correspondence; UE confirms to be in to have at least a mac-ContentionResolutionTimer to be in running status in a plurality of carrier waves, a plurality of carrier waves that are in state of activation is set all is in the DRX active state; Promptly mac-ContentionResolutionTimer is arranged to carrier wave specific timing device in this case, there is conflict to solve on any one carrier wave in operation, be mac-ContentionResolutionTimer on any one carrier wave in operation, UE will be provided with the DL SCC that DL PCC and all are in activated state and be in active state.
Perhaps, if the base station allows the UE synchronization to insert at random on a pair of up-downgoing carrier wave, UE is the mac-ContentionResolutionTimer of a plurality of carrier wave configurations that is in state of activation; UE is after sending Msg3 on any one up-link carrier, and UE starts this mac-ContentionResolutionTimer; At the mac-ContentionResolutionTimer run duration, UE is provided with a plurality of carrier waves and all is in the DRX active state.Promptly mac-ContentionResolutionTimer is arranged to UE specific timing device in this case, and mac-ContentionResolutionTimer run duration, UE will be provided with DL PCC and all be in active state with the DL SCC that all are in activated state.
Three, SR process
In the carrier aggregation, regulation SR sends to the base station on UL PCC, the base station is after the SR that receives the UE transmission, can on the descending carrier of any one activation, send uplink authorization to UE, therefore the SR process is set to the specific process of UE in the present embodiment, in the SR process, UE will be provided with DL PCC and be in active state with the DL SCC that all are in activated state, guarantee that promptly UE monitors all activated descending carrier, obtain the scheduling (promptly receiving the uplink authorization of base station) of base station as early as possible, each activates between carrier wave and has identical DRX state after the realization introducing carrier wave activation deexcitation mechanism.
Four, uplink retransmission process
In the LTE system, UE need keep active state in the uplink retransmission process, finish up to retransmitting, in multicarrier system, an independently HARQ entity is all arranged on each up-link carrier, therefore the uplink retransmission process is set to the specific process of carrier wave in the present embodiment, the uplink retransmission process is arranged in operation on any one up-link carrier, UE need wait for the further uplink retransmission scheduling of base station, UE is provided with DL PCC and is in active state with the DL SCC that all are in activated state, to guarantee that UE obtains the uplink retransmission scheduling of base station as early as possible, each activates between carrier wave and has identical DRX state after the carrier wave of the realization introducing simultaneously activation deexcitation mechanism.
Five, the non-competing downlink data that inserts is at random waited for process
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 present embodiment, the non-competing downlink data wait process that inserts at random is set to the specific process of UE, insert at random in the downlink data wait process non-competing, UE is provided with DL PCC and is in active state with the DL SCC that all are in activated state, and each activates between carrier wave and has identical DRX state after the realization introducing carrier wave activation deexcitation mechanism.
The UE of present embodiment is in aperiodicity DRX process, and a plurality of carrier waves that UE is in state of activation are set to have identical DRX state, outside satisfying each carrier wave self-demand, can also make more power saving of UE.And present embodiment can make the UE simplicity of design, the good backwards compatibility of assurance system (as compatible LTE system), and simultaneously, present embodiment is simpler to the modification of protocol specification.
As can be seen from the above description, the embodiment of the invention has realized that a plurality of carrier waves that following technique effect: UE is in state of activation are set to identical DRX state, can save the power consumption of UE further, simultaneously, guarantee the good backwards compatibility of system (as compatible LTE system).
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, and in some cases, can carry out step shown or that describe with the order that is different from herein, 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 (13)

1. the method for reseptance of a multicarrier discontinuously dispatching is characterized in that, may further comprise the steps:
The user equipment (UE) inspection is current to have a plurality of carrier waves to be in state of activation;
Described UE is described a plurality of carrier wave configuration timer;
Described UE is provided with described a plurality of carrier wave and all is in the DRX active state according to described timer state or the discontinuous reception of present located DRX process.
2. method according to claim 1 is characterized in that, described UE is that described a plurality of carrier wave configuration timer comprises: described UE is duration timers of described a plurality of carrier wave configurations; Described method also comprises: described UE is the cycle to start described duration timer with first duration;
Described UE is according to described timer state, and described a plurality of carrier wave is set all is in the DRX active state and comprises: at described duration timer run duration, described UE is provided with described a plurality of carrier wave and all is in described DRX active state.
3. method according to claim 1 is characterized in that, described UE is that described a plurality of carrier wave configuration timer comprises: described UE is that described a plurality of carrier wave disposes a DRX non-active timer drx-InactivityTimer respectively; Described method also comprises: after receiving the first biography scheduling of upstream or downstream from current carrier wave, described UE starts or restarts the drx-InactivityTimer of described current carrier wave;
Described UE is according to described timer state, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: have at least the drx-InactivityTimer of a carrier wave to be in running status in described a plurality of carrier waves, described UE is provided with described a plurality of carrier wave and all is in described DRX active state.
4. method according to claim 1 is characterized in that, described UE is that described a plurality of carrier wave configuration timer comprises: described UE is drx-InactivityTimer of described a plurality of carrier wave configurations; Described method also comprises: after described UE received that upstream or downstream are first and passes scheduling from any carrier wave, described UE started or restarts described drx-InactivityTimer;
Described UE is according to described timer state, and described a plurality of carrier wave is set all is in the DRX active state and comprises: described drx-InactivityTimer run duration, described UE are provided with described a plurality of carrier wave and all are in described DRX active state.
5. method according to claim 1, it is characterized in that, described UE is according to the discontinuous reception of present located DRX process, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: described UE confirms to have at least in described a plurality of carrier wave a carrier wave to be in descending re-transmission to wait for process, and described UE is provided with described a plurality of carrier wave and all is in described DRX active state.
6. method according to claim 1 is characterized in that, the base station allows described UE synchronization many up-downgoing carrier wave to be inserted simultaneously at random; Described UE is that described a plurality of carrier wave configuration timer comprises: described UE describedly manyly disposes medium access control competition respectively to every pair of carrier wave in the up-downgoing carrier wave and solves timer mac-ContentionResolutionTimer; Described method also comprises: described UE is after sending message three Msg3 of random access procedure on the up-link carrier, and described UE starts the mac-ContentionResolutionTimer of described up-link carrier correspondence;
Described UE is according to described timer state, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: described UE confirms to have at least in described a plurality of carrier wave a mac-ContentionResolutionTimer to be in running status, described a plurality of carrier wave is set all is in described DRX active state.
7. method according to claim 1, it is characterized in that, the base station allows described UE synchronization to insert at random on a pair of up-downgoing carrier wave, and described UE is that described a plurality of carrier wave configuration timer comprises: described UE is mac-ContentionResolutionTimer of described a plurality of carrier wave configurations; Described method also comprises: described UE is after sending Msg3 on any one up-link carrier, and described UE starts described mac-ContentionResolutionTimer;
Described UE is according to described timer state, and described a plurality of carrier wave is set all is in the DRX active state and comprises: described mac-ContentionResolutionTimer run duration, described UE are provided with described a plurality of carrier wave and all are in described DRX active state.
8. method according to claim 1, it is characterized in that, described UE is according to the discontinuous reception of present located DRX process, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: described UE confirms the current dispatch request SR process that is in, and described a plurality of carrier wave is set all is in described DRX active state.
9. method according to claim 1, it is characterized in that, described UE is according to the discontinuous reception of present located DRX process, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: described UE confirms to have at least a up-link carrier to be in the uplink retransmission process, described a plurality of carrier wave is set all is in described DRX active state.
10. method according to claim 1, it is characterized in that, described UE is according to the discontinuous reception of present located DRX process, described a plurality of carrier wave is set all to be in the DRX active state and to comprise: described UE confirms currently to be in the non-competing downlink data that inserts at random and to wait for process, described a plurality of carrier wave is set all is in described DRX active state.
11. according to the arbitrary described method of claim 1-10, it is characterized in that described method also comprises: in described DRX active state, described UE monitors the physical downlink control channel PDCCH of described a plurality of carrier waves.
12. the receiving system of a multicarrier discontinuously dispatching is characterized in that, described device comprises:
Check module, being used to check currently has a plurality of carrier waves to be in state of activation;
Configuration module is used to described a plurality of carrier wave configuration timer;
Module is set, is used for described a plurality of carrier wave being set all being in the DRX active state according to described timer state or the discontinuous reception of present located DRX process.
13. device according to claim 12 is characterized in that, described device also comprises: monitor module, be used for monitoring the physical downlink control channel PDCCH of described a plurality of carrier waves in described DRX active state.
CN2010101468557A 2010-04-01 2010-04-01 Method and device for receiving multi-carrier discontinuous scheduling Pending CN102215552A (en)

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