CN101965037B

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Info

Publication number: CN101965037B
Application number: CN2009100896028A
Authority: CN
Inventors: 赵亚利; 许芳丽; 李国庆
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-07-22
Filing date: 2009-07-22
Publication date: 2013-01-30
Anticipated expiration: 2029-07-22
Also published as: CN101965037A

Abstract

The invention discloses a discontinuous reception processing method and discontinuous reception processing equipment. The discontinuous reception processing method comprises that: in a multicarrier aggregation system, an evolved NodeB (eNB) determines to send a Physical Downlink Control Channel (PDCCH) CC set used aiming at a scheduling signaling of certain User Equipment (UE) and determines a Physical Downlink Shared Channel (PDSCH) CC set required for use and the number of PDSCH CC activated in the PDSCH CC at any time according to a data rate required by the UE; the eNB sends the scheduling signaling to the UE according to a Discontinuous Reception (DRX) parameter through the PDCCH CC set, wherein the scheduling signaling indicates at which time-frequency resources of the PDSCH CC set the UE receives data; and the UE periodically monitors the PDCCH CC set according to the DRX parameter, and receives the data on the PDSCH CC set according to the scheduling signaling acquired by the monitoring. Through the mode, the scheme provided by the method provides a discontinuous reception mechanism under a multicarrier aiming at Rel-10UE, and the mechanism is suitable for PDCCH 1a and PDCCH 1b, and can ensure flexible scheduling and effectively save the power at the same time.

Description

A kind of discontinuous reception processing method and equipment

Technical field

The present invention relates to wireless communication technology, particularly a kind of discontinuous reception processing method and equipment.

Background technology

One, DRX (DiscontinuousReception, discontinuous reception) the process brief introduction among the LTE (Long Term Evolution, Long Term Evolution).

In the mobile communication system based on shared channel, LTE for example, the up-downgoing data transfer is responsible for control by base station (eNB) scheduler, when scheduler is determined certain user of scheduling, to notify UE (User Equipment, subscriber equipment) in which kind of resource to send or receive data by control channel.The UE monitoring control channel, when detecting for oneself dispatch, then indication is finished the transmission (up) of data or is received (descending) according to the dispatch on the control channel.Under state of activation, because when the uncertain eNB of terminal dispatch it, therefore a kind of common mode of operation is, the continuous monitoring control channel of terminal is resolved each subframe that comprises its descending scheduling control channel, is scheduled judging whether.This working method is larger in the terminal data amount, can obtain higher efficient in the situation about may frequently be dispatched.Yet professional for some, the arrival rate of data is lower, and the number of times that causes terminal to be scheduled is also less, if terminal continuous monitoring control channel still can increase its power consumption undoubtedly.In order to solve the power consumption problem, the LTE system has adopted the DRX mode of operation, under this mode of operation, and terminal periodic control channel is monitored, thereby reach the purpose of economize on electricity.

Fig. 1 is DRX process schematic diagram, and the basic principle of DRX as shown in Figure 1.Wherein, the time period of the continuous monitoring control channel of On duration (duration) expression UE, during the radio-frequency channel open and continuous monitoring control channel; Remove outside the On duration At All Other Times, UE is in Sleep (sleep) state, and its radio frequency link will be closed, and monitoring control channel no longer is to reach the purpose of power saving.(Cycle) periodically appears in OnDuration, and the concrete cycle is by the eNB Configuration.

The DRX mechanism of LTE has been considered the arrival mode of data service, i.e. the arrival of packet is (can be understood as, packet reaches does not have rule, may not have data such as certain period, certain period may have more data to be grouped into reach) of burst.In order to adapt to this professional arrival characteristics, LTE DRX process has adopted multiple timer, and combines with HARQ (Hybrid Automatic Repeat Request mixes automatic repeat request) process, to arriving better electricity saving performance.

Relevant timer comprises:

1, On duration timer (duration timer): UE periodically wakes up the time of monitoring control channel, as shown in Figure 1.

2, Short DRX cycle timer (discontinuous reception short cycle timer): for the characteristics that better cooperate data service to arrive, the LTE system allows configuration two kinds of DRX cycle:long cycle (long period) and short cycle (short period).The time of the sleep of two kinds of cycle is different.In short cycle, the sleep time is relatively shorter, UE can be quickly monitoring control channel again.In case for certain UE has configured DRX, if then do not configure short DRX cycle, then acquiescence is long DRX; Short cycle can join.Short DRX cycle timer is provided with the time of adopting short cycle to continue.After Short cycletimer is overtime, UE will use Long cycle.

3, Inactivity Timer (DRX unactivated state timer): after having configured DRX, when receiving the control signal of HARQ initial transmission, opens UE (Active Time) within the time of permission monitoring control channel this timer, before this timer expiry, the continuous monitoring control channel of UE.If before Inactivity Timer is overtime, UE receives the control signal of HARQ initial transmission, will stop and restart Inactivity Timer.

4, RTT (Round Trip Time, Loop Round Trip Time) Timer (RTT timer): be only applicable to DL (Downlink, descending), make UE might be before retransmit arriving next time monitoring control channel not, reach better power savings.If UE has received the control signal of HARQ transmission (initial transmission or re-transmission), will open this timer.If the decoding unsuccessful (UE feeds back NACK) after front HARQ transmission of the data in the corresponding HARQ instance process, after RTT Timer was overtime, UE opened RetransmissionTimer (retransmission timer).If the data in the corresponding HARQ instance process are successfully decoded (UE feeding back ACK) after front HARQ transmission, behind RTT Timer timer expiry, UE does not start Retransmission Timer.If current only have RTT Timer to move, UE is monitoring control channel not.

5, Retransmission Timer: be only applicable to DL.During Retransmission Timer, UE monitoring control channel, the retransfer scheduling of wait corresponding HARQ instance process.

Fig. 2 is DRX operating process schematic diagram, has provided the course of work and the correlation of above-mentioned timer among the figure.As shown in the figure, its process is:

In the t1 moment during on duration, eNB has dispatched the initial transmission forprocess 1, so UE opens Inactivity Timer and corresponding RTT Timer1.Because the decoding of the initial transmission ofProcess 1 is unsuccessful, after RTT Timer was overtime, UE had opened Retransmission Timer1.

In the t2 moment, eNB has dispatched the initial transmission forProcess 2, and Inactivity Timer is restarted, and opens simultaneously the RTT Timer2 forProcess 2.

In the t3 moment before Retransmission timer1 is overtime, UE has received the re-transmission forProcess 1, then stop Retransmission Timer1, and open RTT Timer1.

After RTT Timer2 is overtime, because the initial transmission ofProcess 2 does not have successfully decoded, so UE opens Retransmission Timer2.In the t4 moment before Retransmission Timer2 is overtime, eNB has dispatched the re-transmission ofProcess 2, so UE stops Retransmission Timer2, opens RTT Timer2.

In the t5 moment before Retransmission Timer1 is overtime, eNB has continued to dispatch the re-transmission ofProcess 1, so Retransmission Timer1 is terminated, starts simultaneously RTT Timer1.Before RTTTimer2 was overtime, UE was to the success of the data decode among theProcess 2, so to the eNB feeding back ACK, after RTT Timer2 is overtime, also do not restart Retransmission Timer2 simultaneously.Equally, before RTTTimer1 was overtime, UE was to the success of the data decode among theProcess 1, so to the eNB feeding back ACK, after RTT Timer1 is overtime, also do not restart Retransmission Timer1.

Can find out in On duration Timer, Retransmission Timer and Inactivity Timer, have any one timer to move by said process, UE is with monitoring control channel.

The time of UE monitoring control channel is called again Active Time.Active Time also has other factors to affect except the impact that is subjected to DRX timer in the LTE system, and the Active Time of LTE Rel-8 UE (supporting the UE of LTE version 8) comprises the following time:

The time of OnDurationTimer or drx-InactivityTimer or drx-RetransmissionTimer or mac-ContentionResolutionTimer (competition of MAC layer solves timer) operation;

UE waits for that the base station sends the time of PDCCH (physical downlink control channel, Physical Downlink Control Channel) after sending up SR (Scheduling Request, dispatch request);

Monitoring is for the time of uplink synchronous adaptive retransmission dispatch;

Send the rear time of waiting for accidental access response of random access preamble (leading);

In addition, there is DRX MAC (Medium Access Control in the DRX mechanism of LTE, medium access control) CE (control element, control unit) mechanism, its effect is after UE receives DRX MACCE, with the state of immediate recovery to employing short DRX cycle (if configuration) or long DRX cycle.Its effect be when eNB when not having follow-up data to dispatch, order UE enters the state of periodically monitoring (shown in Figure 1) control channel at once.With further raising electricity saving performance.

Two, CA (CarrierAggregation, carrier aggregation) the technology brief introduction among the LTE-A (Long Term Evolution-Advance, long-term evolution upgrading).

Fig. 3 is LTE cell carrier schematic diagram, as shown in the figure, in the LTE system, in the residential quarter carrier wave can only be arranged, and maximum bandwidth is 20Mhz.

Fig. 4 is for adopting the LTE cell carrier schematic diagram of CA, and as shown in the figure, in LTE-A, the peak rate of system improves a lot than LTE, requires to reach descending 1Gbps, up 500Mbps.And can't satisfy this demand on the bandwidth of 20MHz.The LTE-A system introduces the CA technology, namely in the same residential quarter, continuous or discrete a plurality of carrier waves (Component carrier: member carrier, abbreviation CC) is concentrated in together, when needed simultaneously for the UE service, so that required speed to be provided.For the UE that guarantees LTE can work under the member carrier of each polymerization, each member carrier maximum is no more than 20Mhz.

In the LTE-A residential quarter shown in Figure 4,polymerization 4 CC.Transfer of data can be carried out with UE simultaneously in the base station on 4 member carriers, to improve throughput of system, also can only dispatch UE at part CC.

Three, the PDCCH brief introduction in the system among the LTE-A.

PDCCH adopts the separately mode of coding (separate coding) in the LTE-A system, and so-called separate coding refers to a PDCCH signaling just for a carrier dispatching.

Introduced CI (CarrierIndication, carrier wave indication) territory in the Separate coding PDCCH dispatch, CI territory size is 0～3bit, and according to the size in CI territory, Separate coding PDCCH form can be divided into following two kinds:

PDCCH 1a: i.e. PDCCH and its PDSCH that may dispatch (Physical Downlink SharedChannel, physical down link sharing channel) and PUSCH (Physical Uplink Shared Channel, physical uplink link sharing channel) be positioned at same CC, this moment, CI territory size was 0bit;

PDCCH 1b:PDCCH can dispatch PDSCH and the PUSCH on other CC, and this moment, CI territory size was not 0bit;

In order to support the PDCCH form of LTE-A, introduced the concept of CC subset (set):

PDCCH CC subset: for UE, i.e. PDCCH CC set that UE can monitor;

PDSCH CC subset: for UE, namely a UE can be for the PDSCHCC set of downlink data transmission;

The introducing of PDCCH CC subset be for can each subframe within PDCCH CC subset PDCCH CC of flexible choice as the CC that sends dispatch and use, can by some interference coordination mechanism, improve the transmission quality of PDCCH CC like this.

Fig. 5 is PDCCH CC subset and PDSCH CC subset corresponding relation schematic diagram, as shown in the figure, illustrates as follows:

PDCCH CC subset is CC1, CC2;

PDSCH CC subset is CC1, CC2, CC3;

CC1 wherein, the PDCCH on the CC2 can dispatch the PDSCH of CC1/CC2/CC3.

Fig. 6 is the DRX process schematic diagram of UE among the LTE, and as shown in the figure, in LTE, because a residential quarter only has a carrier wave, a possible process of UE monitoring control channel that is in the DRX state is as follows:

T1:UE enters next on duration, the beginning monitoring control channel;

T2:UE receives the control signal of new transmission on duration, open Inactivity Timer and RTT Timer;

T3:Inactivity Timer is overtime; UE enters long cycle (because not configuring short cycle);

T4:RTT Timer is overtime, because not success of initial transmission, so corresponding RetransmissionTimer opens;

T5:Retransmission Timer is overtime.During Retransmission Timer, receive the scheduling of corresponding re-transmission, and opened RTT Timer;

T6:RTT Timer is overtime, because retransmit successfully decoded, so do not continue to start RetransmissionTimer;

T7:UE enters on duration, continues discontinuously monitoring control channels.

In the LTE-A system that adopts CA, how to adopt the DRX technology, still there is not the scheme of determining.Only be operated on the CC for LTE Rel-8UE, therefore on its work CC, can continue to use the DRX mechanism of LTE, but because Rel-10UE may be simultaneously operated on a plurality of carrier waves, therefore need to consider in the LTE-A system how Rel-10 UE carries out DRX under the existing PDCCH mode, the deficiencies in the prior art just are also there is not at present the DRX scheme under CA for Rel-10UE.

Summary of the invention

Technical problem solved by the invention has been to provide a kind of discontinuous reception processing method in multi-carrier aggregation system and equipment for Rel-10UE.

A kind of discontinuous reception DRX processing method is provided in the embodiment of the invention, has comprised the steps:

In multi-carrier aggregation system, the definite transmission of eNB determines that for the PDCCHCC set of the dispatch use of UE and according to the data rate of UE request the PDSCH CC of needs use gathers;

ENB sends dispatch by the DRX parameter to user equipment (UE) by physical downlink control channel PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

UE carries out periodicity to PDCCH CC set by the DRX parameter and monitors, and according to monitoring the dispatch receive data in PDSCH CC set that obtains;

Wherein, when described DRX parameter is configured, for PDCCH CC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter, wherein: the PDSCH CC number that is dispatched among 1≤N≤this PDCCHCC subset; And/or, for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

The transmission processing method of data under a kind of DRX mode is provided in the embodiment of the invention, has comprised the steps:

In multi-carrier aggregation system, the definite transmission for certain UE of eNB sends the PDCCH CC set of dispatch use and determines the PDSCH CC set that needs use according to the data rate that this UE asks;

ENB sends dispatch by the DRX parameter to UE by PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

The resource allocation conditions that eNB determines according to the eNB scheduler sends data by PDSCH CC set

The receiving handling method of data under a kind of DRX mode is provided in the embodiment of the invention, has comprised the steps:

In multi-carrier aggregation system, UE carries out periodicity to PDCCH CC set by the DRX parameter and monitors;

According to monitoring the dispatch receive data in PDSCH CC set that obtains, described dispatch is that eNB is in order to indicate the resource information of UE receive data in PDSCH CC set;

Wherein, described DRX parameter to being configured, when configuration, configures the DRX parameter for PDCCH CCsubset by described eNB, in PDCCH CC subset configuration N cover DRX parameter, wherein: the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset; And/or, for PDSCHCC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

A kind of DRX treatment system is provided in the embodiment of the invention, has comprised:

ENB, be used at multi-carrier aggregation system, determine to send for certain UE and send the PDCCH CC set of dispatch use and determine the PDSCHCC set that needs use according to the data rate of this UE request, send dispatch by the DRX parameter to UE by PDCCH CC set, and by PDSCH CC set transmission data, the resource information of described dispatch indication UE receive data in PDSCH CC set;

UE is used for that PDCCH CC set is carried out periodicity by the DRX parameter and monitors, and according to monitoring the dispatch receive data in PDSCH CC set that obtains;

Wherein, described eNB is further used for when described DRX parameter is configured, for PDCCHCC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter, wherein: the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset; And/or, for PDSCHCC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

A kind of evolution base station is provided in the embodiment of the invention, has comprised:

Determination module is used at multi-carrier aggregation system, determines to send for certain UE to send the PDCCH CC set of dispatch use and determine the PDSCH CC set that needs use according to the data rate of this UE request;

DRX parameter configuration module: be used for for PDCCH CC set or PDSCH CC set configuration DRX parameter;

The dispatch module is used for sending dispatch by the DRX parameter to UE by PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

Data transmission blocks is used for sending data by PDSCH CC set;

Wherein, described DRX parameter configuration module is further used for when described DRX parameter is configured, for PDCCH CC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter, wherein: the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset; And/or, for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

A kind of subscriber equipment is provided in the embodiment of the invention, has comprised:

Monitor module, be used at multi-carrier aggregation system, PDCCH CC set is carried out periodicity by the DRX parameter monitor; Wherein, described DRX parameter to being configured, when configuration, configures the DRX parameter for PDCCH CC subset by described eNB, in PDCCH CC subset configuration N cover DRX parameter, wherein: the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset; And/or, for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter;

Receiver module is used for according to dispatch receive data in PDSCH CC set of monitoring acquisition, and described dispatch is that eNB is in order to indicate the resource information of UE receive data in PDSCH CC set.

Beneficial effect of the present invention is as follows:

The scheme that the embodiment of the invention provides has proposed discontinuous reception mechanism under a kind of multicarrier for Rel-10UE, and this mechanism namely is suitable for PDCCH 1a, also is suitable for PDCCH 1b, can effectively economize on electricity when guaranteeing flexible dispatching.

Description of drawings

Fig. 1 is DRX process schematic diagram in the background technology;

Fig. 2 is DRX operating process schematic diagram in the background technology;

Fig. 3 is LTE cell carrier schematic diagram in the background technology;

Fig. 4 is the LTE-A cell carrier schematic diagram that adopts CA in the background technology;

Fig. 5 is PDCCH CC subset and PDSCH CC subset corresponding relation schematic diagram in the background technology;

Fig. 6 is the DRX process schematic diagram of UE among the LTE in the background technology;

Fig. 7 is discontinuous reception processing method implementing procedure schematic diagram in the embodiment of the invention;

Fig. 8 is different DRX parameter configuration mode schematic diagrames in the embodiment of the invention;

Fig. 9 is DRX parameter configuration schematic diagram in the embodiment of the invention one;

Figure 10 is DRX parameter configuration schematic diagram in the embodiment of the invention two;

Figure 11 is the transmission processing method implementing procedure schematic diagram of data under the DRX mode in the embodiment of the invention;

Figure 12 is the receiving handling method implementing procedure schematic diagram of data under the DRX mode in the embodiment of the invention;

Figure 13 is DRX treatment system structural representation in the embodiment of the invention;

Figure 14 is evolution base station structural representation in the embodiment of the invention;

Figure 15 is user device architecture schematic diagram in the embodiment of the invention.

Embodiment

Proposed discontinuous reception scheme under a kind of multicarrier for Rel-10UE in the embodiment of the invention, this scheme namely is suitable for PDCCH 1a, also is suitable for PDCCH 1b, can effectively economize on electricity when guaranteeing flexible dispatching.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.

Fig. 7 is discontinuous reception processing method implementing procedure schematic diagram, as shown in the figure, can comprise the steps: when carrying out DRX in multicarrier system

Step 701, in multi-carrier aggregation system, the CC number that activates in PDCCHCC set, PDSCH CC set and the arbitrary moment PDSCH CC set that eNB determines to use for certain UE;

Step 702, eNB send dispatch by the DRX parameter to UE by PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

Step 703, UE carry out periodicity to PDCCH CC set by the DRX parameter and monitor, and according to monitoring the dispatch receive data in PDSCH CC set that obtains.

One, at first the enforcement of the parameter configuration of DRX is described.

DRX parameter configuration mode can have following dual mode:

(1), for PDCCH CC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter (the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset);

Under this mode, adopt in the traditional DRX definition DRX for the concept of PDCCH CC, introducing for multicarrier system and PDCCH 1b, the DRX parameter configuration can be expanded to: take PDCCH CCsubset as whole, suppose that PDCCH CC subset can dispatch in the situation of N PDSCH CC (N＞=1), be PDCCH CC subset configuration N cover DRX parameter, every suit DRX parameter is for a PDSCH CC.This N cover DRX parameter value can be identical or different, if identical, namely do not need to distinguish CC, and configuration gets final product based on per UE in employing.

(2), for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

Under this mode, consider the introducing of multicarrier and PDCCH 1b, PDCCH CC and PDSCH CC may not belong to same CC, therefore, consideration is incorporated into the DRX concept on the PDSCH CC, namely only for PDSCH CC configuration DRX parameter, PDCCH CC subset may trigger the situation that PDCCH CC subset enters active Time according to the DRX state on its all PDSCH CC that may dispatch and other and carry out the monitoring of PDCCH CC subset, DRX parameter on each PDSCH CC can be identical or different, if the same do not need to distinguish CC, configuration gets final product based on per UE in employing.

Above-mentioned two kinds of configuration mode practical applications difference is also little.Fig. 8 is different DRX parameter configuration mode schematic diagrames, all comprise two CC as example take PDCCH CC subset and PDSCH CC subset, as shown in the figure, for the schematic diagram of above-mentioned two kinds of DRX allocation plans, front two groups represent scheme (1), and last group is the schematic diagram of scheme (2).

Two, following the DRX state-maintenance is described.

The introducing of PDCCH CC subset is can select flexibly to send the PDCCH CC that dispatch uses for UE, therefore the listening state of each CC should be consistent in the PDCCH CC subset, if to guarantee changing carrier wave for the dispatch of the re-transmission of certain CC, any one CC can use in the PDCCH CC subset;

(1), discontinuous listening state is safeguarded on the PDCCH CC subset:

No matter which kind of DRX parameter configuration scheme of employing, the monitoring of PDCCH CC subset is always relevant with the PDSCH CC subset that it may be dispatched, configure for PDCCH CC subset for DRX, following timer is the timer on the PDCCH CC subset, configure for PDSCH CC for DRX, following timer is the timer on the PDSCH CC, and concrete listening state is safeguarded can be as follows:

On duration timer: namely monitor PDCCH CCsubset as long as there is an on duration timer to start, that is, for On duration timer, have an on duration timer to start and then monitor PDCCHCC subset;

DRX Inactivity Timer: as long as there is a DRX Inactivity timer to start, namely need to monitor PDCCH CC subset, that is, for DRX Inactivity Timer, there is a DRX Inactivity timer to start and then monitors PDCCH CC subset;

HARQ Retransmission Timer: as long as there is a HARQ Retransmission timer to start, namely need to monitor PDCCH CC subset, namely, for HARQ Retransmission Timer, there is a HARQ Retransmission timer to start and then monitors PDCCH CC subset;

(2), the maintenance of discontinuous receiving state on the PDSCH CC:

Accepting state on the PDSCH CC is safeguarded can three kinds of modes, (downlink receiving state is safeguarded for UE to be called Per UE mode among the embodiment, UE simultaneously the CC of promising its configuration carry out descending reception), Partly per UE mode (safeguard based on UE by the reception for PDCCH CC, safeguard based on CC for the reception on other PDSCH CC), Per CC safeguards (UE safeguards separately accepting state on different CC), and is specific as follows:

1, Per UE safeguards.

As long as because on duration timer or DRX Inactivity timer or HARQretransmission timer cause carrying out the monitoring of PDCCH CC subset, then carrying out downlink data at all PDSCHCC simultaneously receives, namely, because of on duration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC, then carry out downlink data at all PDSCH CC simultaneously and receive;

2, Partly per UE safeguards.

As long as because on duration timer or DRX Inactivity timer cause carrying out the monitoring of PDCCH CCsubset, then receive at all PDSCH CC simultaneously; The monitoring of the PDCCH CC subset that causes as for HARQ retransmissiontimer, only need to carry out the downlink data reception at PDSCH CC corresponding to this HARQ retransmission timer gets final product, namely, because of on duration timer or the DRXInactivity timer triggering UE monitoring that set is carried out to PDCCH CC, then receive at all PDSCHCC simultaneously; Because HARQ retransmission timer triggers the UE monitoring that set is carried out to PDCCH CC, only carry out downlink data at PDSCH CC corresponding to this HARQ retransmission timer and receive;

3, Per CC safeguards.

Only causing carrying out just to carry out downlink data at corresponding PDSCH CC simultaneously in the situation of monitoring of PDCCH CC subset for the on duration timer of this PDSCH CC or DRX Inactivity timer or HARQ retransmission timer receives, namely, because of onduration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC for this PDSCH CC, then carry out downlink data at corresponding PDSCH CC and receive.

Three, the calculating of Active Time on the PDCCH CC subset

Based on above-mentioned DRX mechanism, the Active Time on the PDCCH CC subset can comprise:

Because onDurationTimer or drx-InactivityTimer or drx-RetransmissionTimer or mac-ContentionResolutionTimer start the listening period to PDCCH CC subset that causes;

The upper UE of PDCCH CC subset and its all CC that may dispatch sends the rear time of monitoring PDCCH at PDCCH CC subset of up SR (SchedulingRequest, dispatch request);

The upper time of monitoring for uplink synchronous adaptive retransmission dispatch of PDCCH CC subset and its all CC that may dispatch;

Wait for the time of accidental access response behind the random access of the PDCCH CC subset transmission preamble.

In the enforcement, can further include:

Determine the PDSCH CCsubset of descending use according to factors such as the data rate of UE request and channel qualities;

Determine the CC number that activates among the PDSCH CC subset according to descending transient data amount.

Concrete, can adopt RRC (Radio Resource Control, Radio Resource control) signaling or MAC (Medium Access Control, the media access control) CE (Control Element, control unit), or the L1/L2 signaling CC among the PDSCH CC subset is activated or deexcitation.

In order to reach better power savings, can determine that then PDSCH CC set determine the CC number that activates among the PDSCH CC subset according to the transient data amount according to the data rate of UE request in the enforcement, can adopt RRC signaling, MAC CE (MAC Control Element) or L1/L2 signaling to the activation/deactivation of CC among the PDSCH CC subset.

To sum up, for the variety of way in the embodiment of the invention, various possible embodiment combinations can be as shown in the table:

Combination number	The DRX parameter configuration	The DRX state-maintenance
			Combination
1	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is identical, adopts unified configuration	Safeguard based on perUE
			Combination
2	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is identical, adopts unified configuration	Safeguard based on Partly perUE
			Combination
3	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is identical, adopts unified configuration	Safeguard based on perCC
			Combination
4	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is different, respectively configuration	Safeguard based on per UE
			Combination 5	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is different, respectively configuration	Safeguard based on Partly per UE
Combination 6	The DRX parameter configuration is for PDCCH CC subset, and N group DRX parameter is different, respectively configuration	Safeguard based on per CC
			Combination 7	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is identical, adopts unified configuration	Safeguard based on per UE

[0131]?

Combination 8	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is identical, adopts unified configuration	Safeguard based on Partly per UE
			Combination 9	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is identical, adopts unified configuration	Safeguard based on per CC
Combination 10	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is different, respectively configuration	Safeguard based on per UE
			Combination 11	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is different, respectively configuration	Safeguard based on Partly per UE
Combination 12	The DRX parameter configuration is for PDSCH CC configuration, and the DRX parameter on each PDSCH CC is different, respectively configuration	Safeguard based on per CC

The below take make up 1 andcombination 3 as example, describe, then embodiment is as follows respectively:

Embodiment 1:

The present embodiment is the mode ofcombination 1, and the basic thought of the present embodiment is: the base station only configures a cover DRX parameter for a UE to PDCCH CC subset, and the maintenance of each timer of DRX also is for UE, and then the maintenance process of each timer is as follows:

The start-up time of On duration timer:On duration timer is consistent with LTE system-computed method, determine start-up time and the duration of on duration for the DRX parameter of this UE configuration according to the initial subframe of DRX and base station RRC (Radio resource control, Radio Resource control) layer.

Inactivity Timer; After having configured DRX, when receiving the control signal of HARQ initial transmission, opens UE (Active Time) within the time of permission monitoring control channel this timer, before this timer expiry, UE monitors PDCCH CC subset continuously, if before Inactivity Timer is overtime, as long as UE any one CC on the PDCCH of its support CC subset receives the control signal of HARQ initial transmission, will stop and restart Inactivity Timer for this UE PDCCH CC subset.

RTT Timer: be only applicable to DL, make UE before retransmitting arrival next time, not monitor PDCCHCC subset, reach better power savings.As long as UE any one CC on the PDCCH of its support CC subset has received the control signal of HARQ transmission (initial transmission or re-transmission), will open this timer for this process.If the decoding unsuccessful (UE feeds back NACK) after front HARQ transmission of the data in the corresponding HARQ instance process, after RTT Timer was overtime, UE opened RetransmissionTimer.If the data in the corresponding HARQ instance process are successfully decoded (UE feeding back ACK) after front HARQ transmission, behind RTT Timer timer expiry, UE does not start Retransmission Timer.If current only have RTT Timer to move, UE is monitoring control channel not.

Retransmission Timer: be only applicable to DL.During Retransmission Timer, UE monitors control PDCCH CC subset, waits for the retransfer scheduling of corresponding HARQ instance process.

Fig. 9 is DRX parameter configuration schematic diagram among the embodiment one, and CC1 and CC2 are PDSCH CC among the figure, and CC3 and CC4 are PDCCH CC, then as shown are:

T1:UE receives dispatch for the initial transmission a of CC2 at CC4, and then this UE starts DRX Inactivity timer and for the HARQ RTTtimer of this process a at PDCCH CC subset;

T2:, UE receives control signal for the initial transmission b of CC1 at CC3, then this UE starts DRX Inactivity timer and for the HARQ RTTtimer of this process b at PDCCH CC subset;

Initial transmission b on the t3:CC1 just passes does not have transmission success, then after the HARQ of this process RTTtimer is overtime, start the HARQ Retransmission timer of this process, t3 during HARQRetransmission timer constantly, UE just passes the retransfer scheduling signaling of b on CC3 receives for CC1, then UE stops for the HARQRetransmission timer of this process and starts HARQ RTT timer for this process b at PDCCH CC subset.

Embodiment 2:

The present embodiment is the mode ofcombination 3,embodiment 2 can be regarded as the optimization toembodiment 1, it is the Active Time sum that the Active Time of all CC among the PDCCH CC subset equals its all PDSCH CCsubset that may dispatch, but the DRX mechanism independent maintenance on each CC in the PDSCH CC subset set is not subjected to the impact of PDCCH CC subset set.

Figure 10 is DRX parameter configuration schematic diagram among the embodiment two, and CC1 and CC2 are PDSCH CC among the figure, and CC3 and CC4 are PDCCH CC, and the DRX timer among the PDCCH CC subset on all CC is unified to be safeguarded, then as shown is:

Initial transmission b on the t3:CC1 just passes does not have transmission success, then after the HARQ of this process RTTtimer is overtime, UE starts the HARQ Retransmissiontimer of this process at PDCCH CC subset, t3 during HARQ Retransmission timer constantly, UE just passes the retransfer scheduling signaling of b on CC3 receives for CC1, then UE on PDCCH CC subset then UE stop for the HARQ Retransmission timer of this process and start HARQ RTT timer for this process b.

Above-mentioned execution mode is that the network side that sends from data simultaneously and the UE of receive data are described, and its purpose is the technical scheme that can better understand the present invention on the whole; But, corresponding according to same inventive concept, also provide independent data to send in the embodiment of the invention and the technical scheme of data receiver, the below describes.

Figure 11 is the transmission processing method implementing procedure schematic diagram of data under the DRX mode, as shown in the figure, under the DRX mode, can comprise the steps: when carrying out the data transmission

Step 1101, in multi-carrier aggregation system, eNB determines the CC number of activation in PDCCH CC set and PDSCH CC set and the arbitrary moment PDSCH CC set;

Step 1102, eNB send dispatch by the DRX parameter to UE by PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

Step 1103, eNB send data by PDSCH CC set.

In the enforcement, the DRX parameter of each CC is consistent in the PDCCH CC set.

In the enforcement, when the DRX parameter is configured, can comprise:

For PDCCH CC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter (the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset);

And/or, for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

For further power saving, can further include in the enforcement:

In the enforcement, can adopt RRC signaling or MAC CE (MAC Control Element), or the L1/L2 signaling activates or deexcitation to CC among the PDSCH CC subset.

Figure 12 is the receiving handling method implementing procedure schematic diagram of data under the DRX mode, as shown in the figure, can comprise the steps: when carrying out the data receiver processing

Step 1201, in multi-carrier aggregation system, UE carries out periodicity monitoring to PDCCH CC set by the DRX parameter;

Step 1202, according to the dispatch receive data in PDSCH CC set that monitor to obtain, described dispatch is that eNB is in order to indicate the resource information of UE receive data in PDSCH CC set.

In the enforcement, at UE PDCCH CC set is carried out periodicity when monitoring by the DRX parameter, can comprise:

For On duration timer, there is an on duration timer to start and then monitors PDCCH CCsubset;

For DRX Inactivity Timer, there is a DRX Inactivity timer to start and then monitors PDCCH CC subset;

For HARQ Retransmission Timer, there is a HARQ Retransmission timer to start and then monitors PDCCH CC subset.

In the enforcement, UE carries out periodicity to PDCCH CC set by the DRX parameter and monitors, and according to monitoring the dispatch receive data in PDSCH CC set that obtains, can comprise one of following mode:

Because of on duration timer or DRX Inactivity timer or the HARQ retransmissiontimer triggering UE monitoring that set is carried out to PDCCH CC, then carry out downlink data at all PDSCH CC simultaneously and receive;

Or, because of on duration timer or the DRX Inactivity timer triggering UE monitoring that set is carried out to PDCCH CC, then receive at all PDSCH CC simultaneously; Because HARQretransmission timer triggers the UE monitoring that set is carried out to PDCCH CC, only carry out downlink data at PDSCH CC corresponding to this HARQretransmission timer and receive;

Or, because of on duration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC for this PDSCH CC, then carry out downlink data at corresponding PDSCH CC and receive.

In the enforcement, at UE PDCCH CC set is carried out periodicity when monitoring by the DRX parameter, the Active Time that PDCCHCC gathers can comprise:

Start the listening period to PDCCH CC subset that causes by onDurationTimer or drx-InactivityTimer or drx-RetransmissionTimer or mac-ContentionResolutionTimer;

The upper UE of PDCCH CC subset and its all CC that may dispatch sent behind the uplink scheduling request SR in the time that PDCCH CC subset monitors PDCCH;

Based on same inventive concept, a kind of DRX treatment system, evolution base station, subscriber equipment also are provided in the embodiment of the invention, because the principle that these equipment are dealt with problems is similar to the DRX processing method, so the enforcement of these equipment can referring to the enforcement of method, repeat part and not give unnecessary details.

Figure 13 is DRX treatment system structural representation, as shown in the figure, can comprise in the system:

ENB1301, be used at multi-carrier aggregation system, need to determine PDCCH CC set, PDSCHCC set, send dispatch by the DRX parameter to UE by PDCCH CC set, and by PDSCH CC set transmission data, the resource information of described dispatch indication UE receive data in PDSCH CC set;

UE1302 is used for that PDCCH CC set is carried out periodicity by the DRX parameter and monitors, and according to monitoring the dispatch receive data in PDSCH CC set that obtains.

In the enforcement, eNB can be further used for when described DRX parameter is configured, for PDCCHCC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter, N equals the PDSCH CC number that is dispatched among this PDCCH CC subset; And/or, for PDSCH CCsubset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

In the enforcement, UE can be further used for for On duration timer, having an on duration timer startup then to monitor PDCCHCC subset PDCCH CC set is carried out periodicity when monitoring by the DRX parameter; For DRX Inactivity Timer, there is a DRX Inactivity timer to start and then monitors PDCCH CC subset; For HARQ Retransmission Timer, there is a HARQRetransmission timer to start and then monitors PDCCH CC subset.

UE can be further used for PDCCH CC set is being carried out the periodicity monitoring by the DRX parameter, and according to the dispatch that monitor to obtain in PDSCH CC set during receive data, because of on durationtimer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC, then carry out downlink data at all PDSCH CC simultaneously and receive; Or, because of on duration timer or the DRX Inactivity timer triggering UE monitoring that set is carried out to PDCCH CC, then receive at all PDSCH CC simultaneously; Because HARQ retransmissiontimer triggers the UE monitoring that set is carried out to PDCCH CC, only carry out downlink data at PDSCH CC corresponding to this HARQ retransmission timer and receive; Or, because of onduration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC for this PDSCH CC, then carry out downlink data at corresponding PDSCH CC and receive.

UE can also be further used for PDCCH CC set is being carried out periodicity when monitoring by the DRX parameter, and the Active Time that PDCCH CC gathers comprises:

For power saving, eNB can also be further used for the PDSCH CC subset that determines descending use according to data rate and the channel quality of UE request in the enforcement; Determine the CC number that activates among the PDSCHCC subset according to descending transient data amount.

Activating or during deexcitation, eNB can be further used for adopting RRC signaling or MACCE (MAC Control Element) or L1/L2 signaling that CC among the PDSCH CC subset is activated or deexcitation.

Figure 14 is the evolution base station structural representation, as shown in the figure, can comprise among the eNB:

Determination module 1401 is used at multi-carrier aggregation system, determines to need to pass through the data of transmission in the PDSCH CC set;

Dispatch module 1402 is used for sending dispatch by the DRX parameter to UE by PDCCH CC set, the resource information of described dispatch indication UE receive data in PDSCH CC set;

Data transmission blocks 1403 is used for sending data by PDSCH CC set.

In the enforcement, the DRX parameter configuration module can be further used for making the DRX parameter of each CC in the PDCCH CC set consistent.

The dispatch module can be further used for when described DRX parameter is configured, for PDCCH CC subset configuration DRX parameter, in PDCCH CC subset configuration N cover DRX parameter (the PDSCH CC number that is dispatched among 1≤N≤this PDCCH CC subset); And/or, for PDSCH CC subset configuration DRX parameter, to each PDSCH CC configuration one cover DRX parameter.

In the enforcement, can further include among the eNB:

Active module 1404 is used for determining according to factors such as the data rate of UE request and channel qualities the PDSCH CC subset of descending use; Determine the CC number that activates among the PDSCH CC subset according to descending transient data amount.

In the enforcement, active module can be further used for adopting RRC signaling or MAC CE (MAC Control Element) or L1/L2 signaling that CC among the PDSCH CC subset is activated or deexcitation.

Figure 15 is the user device architecture schematic diagram, as shown in the figure, can comprise among the UE:

Monitor module 1501, be used at multi-carrier aggregation system, PDCCH CC set is carried out periodicity by the DRX parameter monitor;

Receiver module 1502 is used for according to dispatch receive data in PDSCH CC set of monitoring acquisition, and described dispatch is that eNB is in order to indicate the resource information of UE receive data in PDSCH CC set.

In the enforcement, monitor that module can be further used for as long as PDCCH CC need to monitor and then monitor whole PDCCH CC and gather all PDCCH CC.

Monitor module and can be further used for for On duration timer, having an on duration timer startup then to monitor PDCCH CCsubset PDCCH CC set is carried out periodicity when monitoring by the DRX parameter; For DRX Inactivity Timer, there is a DRX Inactivity timer to start and then monitors PDCCH CC subset; For HARQ Retransmission Timer, there is a HARQRetransmission timer to start and then monitors PDCCH CC subset.

In the enforcement, receiver module can be further used for according to the dispatch that monitor to obtain in the PDSCHCC set during receive data, because of on duration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC, then carry out downlink data at all PDSCH CC simultaneously and receive; Or, because of on duration timer or the DRXInactivity timer triggering UE monitoring that set is carried out to PDCCH CC, then receive at all PDSCHCC simultaneously; Because HARQ retransmission timer triggers the UE monitoring that set is carried out to PDCCH CC, only carry out downlink data at PDSCH CC corresponding to this HARQ retransmission timer and receive; Or, because of on duration timer or DRX Inactivity timer or the HARQ retransmission timer triggering UE monitoring that set is carried out to PDCCH CC for this PDSCH CC, then carry out downlink data at corresponding PDSCH CC and receive.

In the enforcement, monitor module and can also be further used at UE PDCCH CC set being carried out periodicity when monitoring by the DRX parameter, the Active Time that PDCCH CC gathers comprises:

For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.

By above-mentioned execution mode as can be known, provide the mechanism of in multicarrier system, carrying out the discontinuous reception processing to comprise in the invention process:

Adopt per UE mode to safeguard for the PDCCH CC subset carrier sense of a UE;

Receive for the downlink discontinuous of the PDSCH CC of a UE and can adopt three kinds of modes to safeguard:

Per UE mode;

Partly per UE mode;

Per CC mode.

The dual mode of multicarrier system DRX parameter configuration further, is provided:

The DRX parameter only configures for PDCCH CC subset: need to configure N cover DRX parameter at PDCCH CC subset, N equals the PDSCH CC number that this PDCCH CC subset may be dispatched to; This N cover parameter can be identical, can be different;

The DRX parameter only configures for PDSCH CC subset: to each PDSCH CC configuration one cover DRX parameter, the DRX parameter of configuration can be the same or different on each PDSCH CC.Carrier sense on the PDCCHCC subset is affected by the DRX state on its PDSCH CC that may be dispatched to.

Further, in the processing of Active Time, Active Time on the PDCCH CC/PDCCH CC subset starts except being subjected to the Active Time of self, needs also to consider that the upper transmission demand of its other CC that may dispatch causes needs monitoring PDCCH and the Active Time that brings;

Further, can also determine according to the factors such as data rate of UE request the number of the PUSCH/PDSCH CC of activation/deactivation;

Concrete, can adopt RRC signaling, MAC CE or L1/L2 signaling to PUSCH/PDSCH CC activation/deactivation;

By aforesaid way as seen, the scheme that the embodiment of the invention provides has proposed discontinuous reception mechanism under a kind of multicarrier for Rel-10UE, and this mechanism namely is suitable for PDCCH 1a, also is suitable for PDCCH 1b, can effectively economize on electricity when guaranteeing flexible dispatching.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, complete implement software example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device producing a machine, so that the instruction of carrying out by the processor of computer or other programmable data processing device produces the device that is used for realizing in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, so that the instruction that is stored in this computer-readable memory produces the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device, so that carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.

Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.