CN103974390A - DRX (discontinuous reception) mode starting method, user equipment (UE), base station and system - Google Patents

DRX (discontinuous reception) mode starting method, user equipment (UE), base station and system Download PDF

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Publication number
CN103974390A
CN103974390A CN201310041054.8A CN201310041054A CN103974390A CN 103974390 A CN103974390 A CN 103974390A CN 201310041054 A CN201310041054 A CN 201310041054A CN 103974390 A CN103974390 A CN 103974390A
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status report
rrc
message
receive
receiving
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CN103974390B (en
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王利
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Sanechips Technology Co Ltd
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ZTE Corp
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Priority to PCT/CN2013/081784 priority patent/WO2014117501A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a DRX (discontinuous reception) mode starting method, user equipment (UE), a base station and a system. The DRX mode starting method includes judging whether status reports corresponding to RRC (radio resource control) reconfiguration complete information are received or not; starting the DRX mode in case that the judgment result is yes. By the DRX mode starting method, the UE and the base station can start the DRX mode at the right time and coordinate, RRC reconfiguration process and subsequent abnormalities can be avoided, and unnecessary resend and electric energy consumption of RRC reconfiguration complete information due to the fact that the UE haven't received the status reports in the process of RRC reconfiguration are avoided.

Description

Starting method, subscriber equipment, base station and the system of DRX pattern
Technical field
The present invention relates to the communications field, in particular to starting method, subscriber equipment, base station and the system of a kind of discontinuous reception (Discontinuous Reception, referred to as DRX) pattern.
Background technology
In Long Term Evolution (Long Term Evolution, referred to as LTE) system, for subscriber equipment (User Equipment, referred to as UE) power saving, define DRX pattern.Under DRX pattern, UE needn't each subframe carry out Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) blind Detecting, provides condition for closing receiving circuit.
Under DRX pattern, active period (Active Time) and non-active period (Non-active Time) alternately exist, and UE leaves Active Time and just enters Non-active Time.Under DRX pattern, UE only need to carry out PDCCH blind Detecting during Active Time.Active Time determines according to the situation of the DRX parameter of evolved base station (Evolved Node B, referred to as eNodeB) configuration and business scheduling.Fig. 1 is according to the schematic diagram of the DRX scene without business of correlation technique, in Fig. 1, A point for " Start/Restart onDuration Timer(starts/restart onDuration Timer) " point, B point be " onDuration Timer expires(onDuration Timer is overtime) " point.As shown in Figure 1, Active Time started by the cycle, enter Non-active Time in the time there is no business transmission during, and during need to waiting until that next cycle just can reenter Active Time.
In correlation technique, DRX configuration parameter is that base station sends to UE's in Radio Resource control (Radio Resource Control, referred to as RRC) connects reallocation message.DRX configuration parameter comprises: (onDuration Timer), drx-InactivityTimer and drx-Retransmission Timer etc.In the time having one or more timers in operation in these timers, think that UE is during the Active of DRX pattern Time.
Fig. 2 is according to the schematic diagram of the DRX scene that has business of correlation technique, in Fig. 2, A is identical with Fig. 1 with B, C/E represents " Found a PDCCH; then Start/Restart InactivityTimer(finds PDCCH; start or restart InactivityTimer) ", and D is that SR send(SR sends), F is that InactivityTimer expires(InactivityTimer is overtime).
As shown in Figure 2, onDuration Timer is the timer periodically starting, drx-Inactivity Timer is the timer starting while receiving new business scheduling, drx-Retransmission Timer is the timer arranging for receiving down mixing self-retransmission request (HybridAutomatic Repeat Request, referred to as HARQ) retransfer scheduling.In addition, when UE sends dispatch request (Scheduling Request, referred to as SR) after base station requests uplink authorization (UL Grant), and before SR Pending does not cancel, think that UE is during Active Time.In the time likely receiving uplink retransmission mandate and up HARQ buffering area (HARQ Buffer) non-NULL, also think that UE is during Active Time.Also have specific Active Time in random access procedure during.
In correlation technique, based on above-described DRX definition and DRX configuration distributing mode, may exist base station different with the opportunity that UE starts DRX pattern, when base station does not enter DRX pattern and UE while entering DRX pattern, may exist UE not go the PDCCH scheduling that base stations detected issues, cause business scheduling to be lost and follow-up abnormal.
For example, the RRC reallocation message that UE has received that base station issues, in the time that the RRC reprovision of receiving UE completes message, can be specified in base station, so start to start DRX pattern.And UE has started immediately DRX pattern in the time receiving the RRC reallocation message that base station issues (carrying DRX configuration).
Fig. 3 is according to the schematic diagram of the RRC reprovision process of correlation technique and DRX pattern startup scene, in Fig. 3, A, B is identical with Fig. 1, C, E and D are identical with Fig. 2, F/G is that Inactivity Timer expires(Inactivity Timer is overtime), H/J is that RRC reconfiguration complete send(RRC has reshuffled message transmission), I/K is the HARQ re-transmission that RRCreconfiguration complete HARQ retransmission(RRC has reshuffled message), L is that RRCreconfiguration received and start DRX mode(RRC reconfiguration message receives and starts DRX pattern).
In the above under this application scenarios and strategy, as shown in Figure 3, UE receives RRC reallocation message in the L moment, start immediately DRX pattern, during by chance entering into onDuration Timer, this onDuration Timer only has 10 milliseconds, then, UE takes uplink authorization DCI0(Downlink Control Informaion format0 at C point, referred to as DCI0), and complete message at H point to base station status report and RRC reprovision, H point sends HARQ failure, then retransmit successfully at I point HARQ, HARQ maximum number of times of transmission be 2 and Inactivity Timer only have 10 milliseconds, during UE just enters into the Non-active Time of DRX pattern after I point so.But now UE also needs the status report that receives base station to receive that to confirm base station RRC reprovision completes message.
As above scene, in base station side, base station receives that RRC reprovision completes after message, sends corresponding status report to UE, during UE has but entered DRX Non-active and do not go receive.Or base station starts immediately DRX pattern in the time receiving that RRC reprovision completes message, according to 256 milliseconds of DRX configuration cycles, base station to wait for more than 230 millisecond can enter into during onDurationTimer and status report to UE.So, UE waits for the status report messages overtime (timer is 60 milliseconds) of base station, trigger RRC reprovision and complete message retransmission process (rlc layer repeating transmission), UE sends SR request at D point and authorizes and obtain the authorization at E point, then send RRC reprovision at J point and complete message, possible J point HARQ sends successfully, or retransmits successfully (HARQ maximum number of times of transmission is 2) at K point HARQ after HARQ failure, in any case, during K point UE enters into again the Non-active Time of DRX pattern.If base station receives the RRC reprovision that J point sends and complete after message, issue status report, UE does not likely receive successfully in the time between K at J, or after status report dropped on K point; Or base station is determined not during Active Time according to DRX cycle and parameter, not status report.
Because UE does not still receive the status report that completes message for RRC reprovision, the report of UE wait state is overtime, again triggers RRC reprovision and completes message transmitting process, as above repeats (in schematic diagram 3, omitting).Retransmit while transfiniting number of times when reaching RLC, UE will initiate RRC process of reconstruction.
See from above example, because UE and base station start the out of season of DRX pattern first, what cause that UE can not receive that base station issues in time completes the status report of message for RRC reprovision, thereby initiation UE repeats to send RRC reprovision and completes message and cause unnecessary power consumption, even cause that RLC re-transmission is transfinited and RRC rebuilds.
Summary of the invention
For the startup problem out of season of the DRX pattern in correlation technique, the invention provides a kind of starting method, subscriber equipment, base station and system of DRX pattern, at least to address the above problem.
According to an aspect of the present invention, provide a kind of starting method of DRX pattern, having comprised: judged whether to receive RRC reprovision and complete status report corresponding to message; Start DRX pattern for be in the situation that in judged result.
Preferably, judge whether to receive RRC reprovision complete status report corresponding to message comprise following one of at least: judge whether to receive described status report at wireless link control rlc layer; The descending distribution DCI receiving according to physical layer judges whether to receive described status report; In RRC reprovision process, wait for the scheduled time, in the time that the described scheduled time arrives, determine and receive described status report.
Preferably, the DCI receiving according to physical layer judges whether to receive described status report and comprises one of following: RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first descending new biography DCI of described network side transmission, determine and receive described status report; RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and after sending described RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive described status report; RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and receive the corresponding mixed automatic retransfer HARQ that described RRC reprovision completes message and confirmed, determined and receive described status report; RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, detecting ascending HARQ successfully indicates, in the situation that detecting that described ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of described network side, determine and receive described status report;
Preferably, in RRC reprovision process, wait for the scheduled time, comprising: in the time receiving the RRC reallocation message that carries DRX configuration parameter and/or when transmission RRC reprovision completes message, wait for the described scheduled time, wherein, the described scheduled time is the value of preset value or the instruction of described network side.
According to another aspect of the present invention, provide a kind of starting method of DRX pattern, having comprised: sent radio resource control RRC reprovision to UE and complete status report corresponding to message; According to described UE, the feedback of described status report is started to DRX pattern.
Preferably, according to described UE, the feedback of described status report is started to DRX pattern and comprise one of following: the mixed automatic retransfer HARQ that receives the described status report that described UE sends confirms, starts described DRX pattern; Automatically retransmit carrying out HARQ the HARQ feedback of described status report in the case of not receiving described UE, when repeating transmission reaches pre-determined number automatically, start DRX pattern at described HARQ; Wait for the scheduled time sending when described status report and/or receive when RRC reprovision completes message, in the time that the described scheduled time arrives, start described DRX pattern.
According to another aspect of the present invention, provide a kind of UE, having comprised: judge module, for judging whether that receiving radio resource control RRC reprovision completes status report corresponding to message; Start module, for start DRX pattern for be in the situation that in judged result.
Preferably, described judge module comprise following one of at least: the first judging unit, for judging whether to receive described status report at wireless link control rlc layer; The second judging unit, judges whether to receive described status report for the descending distribution DCI receiving according to physical layer; The 3rd judging unit for waiting for the scheduled time in RRC reprovision process, is determined and is received described status report in the time that the described scheduled time arrives.
Preferably, described the second judging unit comprise following one of at least: first determines subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to network side, while receiving first descending new biography DCI of described network side transmission, determine and receive described status report; Second determines subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to network side, while receiving first new biography DCI of described network side transmission, and after sending described RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive described status report; The 3rd determines subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and receive the corresponding mixed automatic retransfer HARQ that described RRC reprovision completes message and confirmed, determined and receive described status report; The 4th confirms subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, detecting ascending HARQ successfully indicates, in the situation that detecting that described ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of described network side, determine and receive described status report.
Preferably, described the 3rd judging unit comprises: first waits for subelement, in the time receiving the RRC reallocation message that carries DRX configuration parameter, waits for the described scheduled time; And/or second wait for subelement, in the time sending RRC reprovision and complete message, wait for the described scheduled time; Wherein, the described scheduled time is the value of preset value or the instruction of described network side.
According to a further aspect of the invention, provide a kind of startup system of DRX pattern, comprised above-mentioned arbitrary UE provided by the invention and above-mentioned arbitrary base station provided by the invention.
By the present invention, judge whether to receive RRC reprovision and complete status report corresponding to message, start DRX pattern for be in the situation that in judged result, avoid in RRC reprovision process, because UE does not receive status report, the unnecessary RRC reprovision causing completes repeating transmission and the power consumption of message, has avoided DRX pattern to start problem out of season.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the DRX scene without business of correlation technique;
Fig. 2 is according to the schematic diagram of the DRX scene that has business of correlation technique;
Fig. 3 is according to the schematic diagram of the RRC reprovision process of correlation technique and DRX pattern startup scene;
Fig. 4 is according to the schematic diagram of the startup system of the DRX of the embodiment of the present invention;
Fig. 5 is according to the structured flowchart of the base station of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart of the UE of the embodiment of the present invention;
Fig. 7 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention;
Fig. 8 is according to the flow chart of the starting method of the DRX pattern of the base station of the embodiment of the present invention;
Fig. 9 is the schematic diagram that starts scene according to the DRX pattern of the embodiment of the present invention 1;
Figure 10 is the schematic diagram that starts scene according to the DRX pattern of the embodiment of the present invention 2;
Figure 11 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention 3;
Figure 12 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention 4; And
Figure 13 is according to the flow chart of the starting method of the DRX pattern of the base station of the embodiment of the present invention 4.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
According to the embodiment of the present invention, provide a kind of startup system of DRX pattern.
Fig. 4 is according to the schematic diagram of the startup system of the DRX of the embodiment of the present invention, and as shown in Figure 4, this system mainly comprises base station 1 and UE2.Wherein, base station 1, completes status report corresponding to message for sending RRC reprovision to UE, and according to UE, the feedback of status report is started to DRX pattern; UE2, for judging whether that receiving RRC reprovision completes status report corresponding to message, and starts DRX pattern for be in the situation that in judged result.
In an execution mode of the embodiment of the present invention, base station 1 and UE2 can be for judging whether to start DRX pattern according to the message in RRC reprovision process, or, after starting, RRC reprovision waits for the scheduled time, in the time that this scheduled time arrives, start DRX pattern.
Base station 1 to the embodiment of the present invention and the preferred implementation of UE2 are described below.
(1) base station 1
Fig. 5 is according to the structured flowchart of the base station of the embodiment of the present invention, and as shown in Figure 5, base station 1 mainly comprises: sending module 10 and startup module 12.Wherein, sending module 10, completes status report corresponding to message for sending RRC reprovision to UE; Start module 12, be connected with sending module 10, for the feedback of status report being started to DRX pattern according to UE.
In an execution mode in embodiments of the present invention, start module 12 and can comprise one of following: the first start unit, confirm for the HARQ that receives the status report that UE sends, start DRX pattern; The second start unit, for automatically retransmitting carrying out HARQ the HARQ feedback of status report in the case of not receiving UE, starts most DRX patterns when repeating transmission reaches pre-determined number automatically at HARQ; The 3rd start unit for when the status report and/or receive when RRC reprovision completes message and wait for the scheduled time, starts DRX pattern in the time that this scheduled time arrives.
In actual applications, can be set the above-mentioned scheduled time according to network signal quality, for example, network signal quality is better, and the shorter stand-by period can be set, if network signal quality is poor, can be set the longer stand-by period.
(2) UE2
Fig. 6 is according to the structured flowchart of the UE of the embodiment of the present invention, and as shown in Figure 6, UE2 mainly comprises: judge module 20 and startup module 22.Wherein, judge module 20, for judging whether that receiving RRC reprovision completes status report corresponding to message; Start module 22, be connected with judge module 20, for start DRX pattern for be in the situation that in judged result.
In embodiments of the present invention, judge module 20 can be for judging whether to receive above-mentioned status report at rlc layer or physical layer.Or judge module 20 can be waited for the scheduled time after starting at RRC reprovision, in the time that arriving, this scheduled time determines that RRC reprovision completes.Therefore, judge module 20 can comprise: the first judging unit, for judge whether to receive status report at rlc layer; The second judging unit, judges whether to receive status report for the DCI receiving according to physical layer; The 3rd judging unit for waiting for the scheduled time in RRC reprovision process, is determined and is received status report in the time that the scheduled time arrives.
In a preferred implementation of the embodiment of the present invention, it is one of following that the second judging unit comprises:
First determines subelement, for connect at RRC set up after and do not set up under the situation of business, complete after message sending RRC reprovision to network side, while receiving first descending new biography DCI that network side sends, definite status report that receives;
Second determines subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message to network side transmission RRC reprovision, while receiving first new biography DCI of network side transmission, and after sending RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive status report;
The 3rd determines subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message to network side transmission RRC reprovision, while receiving first new biography DCI of network side transmission, and receive the corresponding mixed automatic retransfer HARQ that RRC reprovision completes message and confirmed, determined and receive status report;
The 4th confirms subelement, be used for after RRC connects foundation and do not set up under the situation of business, complete after message to network side transmission RRC reprovision, detecting ascending HARQ successfully indicates, in the situation that detecting that ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of network side, determine and receive status report.
In a preferred implementation of the embodiment of the present invention, the 3rd judging unit comprises: first waits for subelement, in the time receiving the RRC reallocation message that carries DRX configuration parameter, waits for the scheduled time; And/or second waits for subelement, in the time that transmission RRC reprovision completes message, wait for the scheduled time; Wherein, the scheduled time is the value of preset value or the instruction of described network side.When overtime in the scheduled time, start DRX pattern.
According to the embodiment of the present invention, corresponding to the startup system of above-mentioned base station, UE and DRX pattern, also provide a kind of starting method of DRX pattern.
Fig. 7 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention, and as shown in Figure 7, the method comprising the steps of S702 is to step S704.
Step S702, judges whether to receive RRC reprovision and completes status report corresponding to message.
Step S704, starts DRX pattern for be in the situation that in judged result.
In a preferred implementation of the embodiment of the present invention, can one of at least judge whether to receive above-mentioned status report through but not limited to following mode: judge whether to receive above-mentioned status report at rlc layer; The DCI receiving according to physical layer judges whether to receive above-mentioned status report; In RRC reprovision process, wait for the scheduled time, in the time that the scheduled time arrives, determine and receive status report.
Further, in a preferred implementation of the embodiment of the present invention, the DCI receiving according to physical layer judges whether to receive described status report and can comprise one of following:
1) RRC connect set up after and do not set up under the situation of business, complete after message sending RRC reprovision to network side, while receiving first descending new biography DCI that network side sends, definite status report that receives;
2) RRC connect set up after and do not set up under the situation of business, complete after message to network side transmission RRC reprovision, while receiving first new biography DCI of network side transmission, and after sending RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive status report;
3) RRC connect set up after and do not set up under the situation of business, complete after message to network side transmission RRC reprovision, while receiving first new biography DCI of network side transmission, and receive the corresponding mixed automatic retransfer HARQ that RRC reprovision completes message and confirmed, determined and receive status report;
4) RRC connect set up after and do not set up under the situation of business, completing after message to network side transmission RRC reprovision, detect ascending HARQ and successfully indicate, in the situation that detecting that ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of network side, determine and receive status report.
Further, in an execution mode of the embodiment of the present invention, can be in the time receiving the RRC configuration messages that carries DRX configuration parameter, or when transmission RRC reprovision completes message, wait for the above-mentioned scheduled time, wherein, this scheduled time can be the value of preset value or network side instruction.
Fig. 8 is according to the flow chart of the starting method of the DRX pattern of the base station of the embodiment of the present invention, and as shown in Figure 8, the method comprising the steps of S802 is to step S804.
Step S802, sends RRC reprovision to UE and completes status report corresponding to message.
Step S804, starts DRX pattern according to UE to the feedback of above-mentioned status report.
In a preferred implementation of the embodiment of the present invention, can be through but not limited to starting one of in the following manner DRX pattern: the HARQ that 1) receives the status report that UE sends confirms, starts described DRX pattern; 2) automatically retransmit carrying out HARQ the HARQ feedback of status report in the case of not receiving UE, when repeating transmission reaches pre-determined number automatically, start most DRX patterns at HARQ; 3), in status report and/or receive when RRC reprovision completes message and wait for the scheduled time, in the time that arriving, starts the scheduled time DRX pattern.
Each scheme of said method to the embodiment of the present invention is described respectively below.
Scheme 1
UE receives the RRC reallocation message that base station issues and the DRX configuration parameter carrying thereof, and sends RRC reprovision complete message to base station.When UE receives while completing the status report of message corresponding to above-mentioned RRC reprovision, start to start DRX pattern.
Correspondingly, base station receives that RRC reprovision completes after message, sends above-mentioned status report to UE.Base station sends after above-mentioned status report, and receives that the HARQ to above-mentioned status report that UE sends confirms when (HARQACK), to start DRX pattern.
Base station sends after above-mentioned status report, if do not receive the HARQ ACK for above-mentioned status report, HARQ repeating transmission is carried out in base station, retransmits maximum times, base station initiated DRX pattern until re-transmission success or number of retransmissions reach HARQ.
Scheme 2
This scheme can be for the scene that just enters connected state, starts DRX pattern front without other business datums transmitting-receivings.
UE receives the RRC reallocation message that base station issues and the DRX configuration parameter carrying thereof, and sends RRC reprovision complete message to base station.
UE sends RRC reprovision and completes after message, while receiving first DCI, starts to start DRX pattern.Or UE is receiving after DRX configuration parameter, while receiving the DCI of first new biography, start to start DRX pattern.Or UE is receiving after DRX configuration parameter, after follow-up up transmission successfully (ascending HARQ success), while receiving the DCI of first new biography, start to start DRX pattern.
Correspondingly, base station receives that RRC reprovision completes after message, sends above-mentioned status report to UE.Base station sends after above-mentioned status report, and receives that the HARQ to above-mentioned status report that UE sends confirms when (HARQACK), to start DRX pattern.
Base station sends after above-mentioned status report, if do not receive the HARQ ACK for above-mentioned status report, HARQ retransmission process is carried out in base station, retransmits maximum times, base station initiated DRX pattern until re-transmission success or number of retransmissions reach HARQ.
Scheme 3
UE receives the RRC reallocation message that base station issues and the DRX configuration parameter carrying thereof, and sends RRC reprovision complete message to base station.
When UE receives DRX configuration parameter and/or when transmission RRC reprovision completes message, wait for after a timing length X, start DRX pattern.
Correspondingly, base station receives that RRC reprovision completes after message, sends RRC reprovision complete the corresponding status report of message to UE.Base station sends after above-mentioned status report, waits for after a timing length Y, starts DRX pattern.
Or base station is sending after RRC reallocation message, wait for after a timing length Y, start DRX pattern.
Or base station completes after message receiving RRC reprovision, wait for after a timing length Y, start DRX pattern.
Above-mentioned time span X is default value, or in the DRX of RRC reallocation message configuration parameter, is notified UE timing length X by base station.Above-mentioned time span Y is default value, or notifies to the timing length X of UE and determine according to base station.
Below in conjunction with instantiation, the said method of the embodiment of the present invention is described.
Embodiment 1
As shown in Figure 1, in correlation technique, under DRX pattern, during without business, Active Time and Non-active Time be appearance alternately, and Active Time started by the cycle.UE only receives the data that base station issues during Active Time; During Non-activeTime, do not receive the data that base station issues, do not detect PDCCH.Between 2 of AB, being during Active Time, is the time of the onDuration Timer operation of base station configuration.
As shown in Figure 2, in correlation technique, under DRX pattern, while having business, in the time that UE detects the PDCCH of base station scheduling, can further extend the Active Time time, be specially Inactivity Timer running time, this Inactivity Timer value is variable, and the shortest is 1 millisecond.
As shown in Figure 2, in correlation technique, during UE enters Non-active Time, after B arrow, while having data to send, can apply for uplink authorization to base station by sending SR, in order to send upstream data.When D arrow, UE sends SR to base station, E arrow receives the uplink authorization (PDCCH with DCI0) of base station, the E arrow moment is Active Time and is deferred to F arrow (Inactivity Timer stops), after this during UE enters Non-active Time until next DRX cycle does not receive the data that base station issues around here.This routine ascending HARQ maximum number of times of transmission is 1, only illustrates SR process.
As shown in Figure 3, in correlation technique, UE receives RRC reallocation message in the L moment, starts DRX pattern, and completes message in H moment status report (corresponding to the RRC reallocation message of base station) and RRC reprovision; UE completes message in the I moment to RRC reprovision to carry out after HARQ repeating transmission, during entering into DRX Non-active Time.Because UE does not receive the status report that completes message for RRC reprovision, after wait timeout, send SR application at D point and authorize, and resend RRC reprovision at J point and complete message.After this,, because base station has started DRX pattern receiving after RRC reprovision completes message, need to wait until in Active Time time of next DRX cycle that status report is to UE.So UE does not receive status report always, initiation RLC retransmits to transfinite and RRC reconstruction.
Fig. 9 is the schematic diagram that starts scene according to the DRX pattern of the embodiment of the present invention 1, in Fig. 9, A, B is identical with Fig. 1, C is that Found a UL Grant(finds an a UL Grant), H is that RRC reconfiguration complete send(RRC reprovision completes transmission), I is that RRC reconfiguration complete HARQ retransmission(RRC reprovision completes HARQ re-transmission), L is that RRC reconfiguration received(receives RRC reprovision), M is that Status report Received andstart DRX mode(receives status report and starts DRX pattern).
As shown in Figure 9, in embodiment of the present invention scheme 1, and the difference of Fig. 3 is, do not start DRX pattern in the L moment, carries out after HARQ that RRC reprovision completes message retransmits, waiting for the status report that receives base station in the I moment.Subsequently, in the time that M point receives the status report that base station issues, start DRX pattern.
DRX mode starting method and the scene described from Fig. 9, UE can receive in time the status report that base station issues after RRC reprovision completes message transmission, avoid lost condition report and cause unnecessary RRC reprovision and complete the repeating transmission of message, further can avoid RLC to retransmit transfiniting and RRC rebuilds.And Fig. 3 describe scene in, UE can not receive status report in time, further may cause RLC retransmit transfinite and RRC rebuild.
Embodiment 2
Figure 10 is the schematic diagram that starts scene according to the DRX pattern of the embodiment of the present invention 2, in Figure 10, A, B is identical with Fig. 1, C is that Found a UL Grant(finds an a UL Grant), G is that Inactivity Timer expires(Inactivity Timer is overtime), H is that RRC reconfiguration complete send(RRC reprovision completes transmission), I is that RRC reconfigurationcomplete HARQ retransmission(RRC reprovision completes HARQ re-transmission), L is that RRC reconfiguration received(receives RRC reprovision), N is Received DL assignment(DCI) And start DRX mode(receives DCI, start DRX pattern).
As shown in figure 10, in embodiment of the present invention scheme 2, with the difference of Fig. 3 be, do not start DRX pattern in the L moment, carry out after HARQ that RRC reprovision completes message retransmits in the I moment, in the time that N point receives the descending new distribution (new biography DCI) that base station issues, start DRX pattern, start DRX Inactivity Timer, this timer expiry of G point, enters non-active period simultaneously.
DRX mode starting method and the scene described from Figure 10, UE can receive in time the status report that base station issues after RRC reprovision completes message transmission, avoid lost condition report and cause unnecessary RRC reprovision and complete the repeating transmission of message, further can avoid RLC to retransmit transfiniting and RRC rebuilds.And Fig. 3 describe scene in, UE can not receive status report in time, further may cause RLC retransmit transfinite and RRC rebuild.
Embodiment 3
Embodiment 3 is as a kind of execution mode of scheme 2.
Figure 11 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention 3, and as shown in figure 11, the method comprising the steps of S1102 is to step S1112:
Step S1102, UE is receiving the RRC reallocation message of base station (carrying DRX configuration);
Step S1104, the state of setting is DRX pre-actuated state 1;
Step S1106, UE MAC instruction ascending HARQ sends successfully;
Step S1108, it is DRX pre-actuated state 2 that status change is set;
Step S1110, receives the descending DCI of base station new biography;
Step S1112, starts DRX pattern.
When above-mentioned any one initial conditions does not meet, all can not start DRX pattern.Processing procedure when Figure 11 has only illustrated that condition meets.
Embodiment 4
Embodiment 4 is as a kind of execution mode of scheme 3.
Figure 12 is according to the flow chart of the starting method of the DRX pattern of the UE of the embodiment of the present invention 4, and as shown in figure 12, the method comprising the steps of S1202 is to step S1208:
Step S1202, UE receives the RRC reallocation message (carrying DRX configuration) of base station;
Step S1204, starts DRX timer X;
Step S1206, DRX timer X is super;
Step S1208, starts DRX pattern.
Figure 13 is according to the flow chart of the starting method of the DRX pattern of the base station of the embodiment of the present invention 4, and as shown in figure 13, correspondingly, the method comprising the steps of S1302 is to step S1308:
Step S1302, base station is sending RRC reallocation message (carrying DRX configuration);
Step S1304, starts DRX timer Y;
Step S1306, Y is overtime for DRX timer;
Step S1308, starts DRX pattern.
In embodiments of the present invention, timer X duration and timer Y duration equate or Y is less than X, ensure that UE is no earlier than base station initiated DRX pattern.
From above description, can find out, the present invention has realized following technique effect: the such scheme that adopts the embodiment of the present invention, make UE and base station start DRX pattern and reach harmonious on suitable opportunity, and then avoid RRC reprovision process and follow-up abnormal, also can avoid in this process UE not receive status report and the unnecessary RRC reprovision that causes completes the repeating transmission of message and causes power consumption.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (13)

1. a starting method for discontinuous reception DRX pattern, is characterized in that, comprising:
Judge whether to receive radio resource control RRC reprovision and complete status report corresponding to message;
Start DRX pattern for be in the situation that in judged result.
2. method according to claim 1, is characterized in that, judge whether to receive RRC reprovision complete status report corresponding to message comprise following one of at least:
Judge whether to receive described status report at wireless link control rlc layer;
The descending distribution DCI receiving according to physical layer judges whether to receive described status report;
In RRC reprovision process, wait for the scheduled time, in the time that the described scheduled time arrives, determine and receive described status report.
3. method according to claim 2, is characterized in that, the DCI receiving according to physical layer judges whether to receive described status report and comprises one of following:
RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to network side, while receiving first descending new biography DCI that described network side sends, definitely receive described status report;
Described RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and after sending described RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive described status report;
Described RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and receive the corresponding mixed automatic retransfer HARQ that described RRC reprovision completes message and confirmed, determined and receive described status report;
Described RRC connect set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, detecting ascending HARQ successfully indicates, in the situation that detecting that described ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of described network side, determine and receive described status report.
4. method according to claim 2, is characterized in that, in RRC reprovision process, waits for the scheduled time, comprising:
In the time receiving the RRC reallocation message that carries DRX configuration parameter and/or when transmission RRC reprovision completes message, wait for the described scheduled time, wherein, the described scheduled time is the value of preset value or the instruction of described network side.
5. a starting method for discontinuous reception DRX pattern, is characterized in that, comprising:
Send radio resource control RRC reprovision to user equipment (UE) and complete status report corresponding to message;
According to described UE, the feedback of described status report is started to DRX pattern.
6. method according to claim 5, is characterized in that, according to described UE, the feedback of described status report is started to DRX pattern and comprises one of following:
The mixed automatic retransfer HARQ that receives the described status report of described UE transmission confirms, starts described DRX pattern;
Automatically retransmit carrying out HARQ the HARQ feedback of described status report in the case of not receiving described UE, when repeating transmission reaches pre-determined number automatically, start DRX pattern at described HARQ;
Wait for the scheduled time sending when described status report and/or receive when RRC reprovision completes message, in the time that the described scheduled time arrives, start described DRX pattern.
7. a user equipment (UE), is characterized in that, comprising:
Judge module, for judging whether that receiving radio resource control RRC reprovision completes status report corresponding to message;
Start module, for start DRX pattern for be in the situation that in judged result.
8. UE according to claim 7, is characterized in that, described judge module comprise following one of at least:
The first judging unit, for judging whether to receive described status report at wireless link control rlc layer;
The second judging unit, judges whether to receive described status report for the descending distribution DCI receiving according to physical layer;
The 3rd judging unit for waiting for the scheduled time in RRC reprovision process, is determined and is received described status report in the time that the described scheduled time arrives.
9. UE according to claim 8, is characterized in that, described the second judging unit comprise following one of at least:
First determines subelement, for connect at RRC set up after and do not set up under the situation of business, complete after message sending described RRC reprovision to network side, while receiving first descending new biography DCI that described network side sends, definitely receive described status report;
Second determines subelement, be used for after described RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and after sending described RRC reprovision to complete message, do not receive descending re-transmission DCI to receiving between new biography DCI, and determined and receive described status report;
The 3rd determines subelement, be used for after described RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, while receiving first new biography DCI of described network side transmission, and receive the corresponding mixed automatic retransfer HARQ that described RRC reprovision completes message and confirmed, determined and receive described status report;
The 4th confirms subelement, be used for after described RRC connects foundation and do not set up under the situation of business, complete after message sending described RRC reprovision to described network side, detecting ascending HARQ successfully indicates, in the situation that detecting that described ascending HARQ is successfully indicated, while receiving the DCI of the new transmission of described network side, determine and receive described status report.
10. UE according to claim 8, is characterized in that, described the 3rd judging unit comprises:
First waits for subelement, in the time receiving the RRC reallocation message that carries DRX configuration parameter, waits for the described scheduled time; And/or
Second waits for subelement, in the time that transmission RRC reprovision completes message, waits for the described scheduled time;
Wherein, the described scheduled time is the value of preset value or the instruction of described network side.
11. 1 kinds of base stations, is characterized in that, comprising:
Sending module, completes status report corresponding to message for sending radio resource control RRC reprovision to user equipment (UE);
Start module, for the feedback of described status report being started to DRX pattern according to described UE.
12. base stations according to claim 11, is characterized in that, it is one of following that described startup module comprises:
The first start unit, confirms for the mixed automatic retransfer HARQ that receives the described status report that described UE sends, and starts described DRX pattern;
The second start unit, for automatically retransmitting carrying out HARQ the HARQ feedback of described status report in the case of not receiving described UE, starts DRX pattern when repeating transmission reaches pre-determined number automatically at described HARQ;
The 3rd start unit for sending described status report and/or receiving when RRC reprovision completes message and wait for the scheduled time, starts described DRX pattern in the time that the described scheduled time arrives.
The startup system of 13. 1 kinds of discontinuous reception DRX patterns, is characterized in that, comprises the base station described in user equipment (UE) and the claim 11 or 12 described in any one in claim 7 to 10.
CN201310041054.8A 2013-02-01 2013-02-01 Starting method, user equipment, base station and the system of DRX mode Active CN103974390B (en)

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