CN106899941A - The method and apparatus of discontinuously monitoring control channels in a kind of trunked communication system - Google Patents
The method and apparatus of discontinuously monitoring control channels in a kind of trunked communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- 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
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
This application provides a kind of method of discontinuously monitoring control channels in trunked communication system, the method includes：It is that the cluster assembles the cluster DRX configuration informations put that cluster UE obtains base station；Wherein, the cluster DRX configuration informations include：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group duration timer；Cluster UE determines that collection group duration timer starts the time according to cluster DRX cycle, cluster DRX cycle start time side-play amount；Cluster UE monitors physical downlink control channel PDCCH in activationary time, and the activationary time includes that collection group duration timer is in the time of running status.Based on same inventive concept, the application also proposes a kind of device of discontinuously monitoring control channels in trunked communication system, and cluster UE need not always continuously listen to PDCCH channels answering when group is exhaled, and then can economize on electricity.
Description
Technical field
The present invention relates to communication technical field, discontinuously monitoring control channels in more particularly to a kind of trunked communication system
Method and apparatus.
Background technology
Based on the wideband digital trunked communication system of time-division-Long Term Evolution (TD-LTE) technology, TD- can be not only supported
The various multimedia services of LTE mobile communication system itself, and basic trunked call service and many matchmakers of cluster can be provided
Body business.
Cluster multi call business is the typical services in group system, is participated in jointly by multiple users, in private network communication field
Play huge effect.It is descending for the characteristic of point multipoint message traffic in order to realize cluster multi call business fast call establishment
General to send control plane signaling and user face data using broadcast mode, the group in idle condition exhales the user need not to be transformed into company
State is connect, it is possible to directly receive control plane signaling and user face data, so that speed call sets up and business datum is received.
In LTE system, in order to user equipment (UE) economizes on electricity, increase the use time of UE batteries, introduce discontinuous connecing
(Discontinuous Reception, the DRX) mechanism of receipts, i.e., when UE is under connection status, it is not necessary to continuously listen to base
Stand the control channel of (eNode B), but discontinuously monitoring control channel.
In order to implement DRX operations, various timers defined in TS36.321 agreements, using timer and DRX
With reference to working method so that eNode B keep with UE identical DRX working methods, and know that UE is in the activation phase in real time
Or sleep period come ensure only carry out data transmission in the activation phase of UE.
In trunked communication system, a cluster UE can be in radio resource control (Radio Resource
Control, RRC) group is answered under idle condition exhales.If cluster UE continuously listens to eNode always in whole group-calling process
The control channel of B, is very power consumption.
The content of the invention
In view of this, the method and apparatus that the application provides discontinuously monitoring control channels in a kind of trunked communication system,
PDCCH channels need not always be continuously listened to answering with cluster UE when group is exhaled, and can be economized on electricity.
In order to solve the above technical problems, what the technical scheme of the application was realized in：
A kind of method of discontinuously monitoring control channels in trunked communication system, is applied to carry out process in group-calling service
In collection group in cluster user equipment UE on, put cluster discontinuous reception DRX functions for the cluster is assembled；The method bag
Include：
It is that the cluster assembles the cluster DRX configuration informations put that cluster UE obtains base station；Wherein, the cluster DRX matches somebody with somebody
Confidence breath includes：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group duration timer；
Cluster UE determines that collection group's duration determines according to cluster DRX cycle, cluster DRX cycle start time side-play amount
When device start the time；
Cluster UE monitors physical downlink control channel PDCCH in activationary time, and the activationary time includes the collection
Group's duration timer is in the time of running status.
The device of discontinuously monitoring control channels in a kind of trunked communication system, is applied to carry out process in group-calling service
In collection group in cluster user equipment UE on, put cluster discontinuous reception DRX functions for the cluster is assembled；The device bag
Include：Acquiring unit, determining unit, monitoring unit；
The acquiring unit, is that the cluster assembles the cluster DRX configuration informations put for obtaining base station；Wherein, it is described
Cluster DRX configuration informations include：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group's duration are regularly
Device；
The determining unit, when starting for the cluster DRX cycle that is obtained according to the acquiring unit, cluster DRX cycle
Carve side-play amount and determine that collection group duration timer starts the time；
The monitoring unit, for monitoring Physical Downlink Control Channel in the activationary time that the determining unit determines
PDCCH, the activationary time includes that collection group duration timer is in the time of running status.
As can be seen from the above technical solution, cluster DRX functions are put by for cluster is assembled in the application, in Shi Ji groups
The cluster DRX configuration informations that UE is configured according to base station determine activationary time, and PDCCH is monitored in activationary time.So
Cluster UE need not always continuously listen to PDCCH channels answering when group is exhaled, can economize on electricity.
Brief description of the drawings
Fig. 1 be the embodiment of the present application in trunked communication system discontinuously monitoring control channels schematic flow sheet；
Fig. 2 is to be applied to the apparatus structure schematic diagram of above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, develop simultaneously embodiment below in conjunction with the accompanying drawings,
Technical scheme is described in detail.
The method that discontinuously monitoring control channels in a kind of trunked communication system are provided in the embodiment of the present application, is applied to place
On UE in the collection group during group-calling service is carried out.Cluster DRX functions are put by for cluster is assembled, in Shi Ji groups
The cluster DRX configuration informations that UE is configured according to base station determine activationary time, and PDCCH is monitored in activationary time.So
Cluster UE need not always continuously listen to PDCCH channels answering when group is exhaled, can economize on electricity.
Hereafter for convenience, the UE collected in group is referred to as cluster UE.
Group-calling service carries out process to be included：Group call establishment process, group are exhaled and have set up the reception for carrying out group-calling service, reception group
The UE for exhaling carries out the right to apply for words, reception group and exhales the mobility of UE, reception group to exhale group-calling service of other groups of UE reconfigurations etc..
In group call establishment process, core net initiates the foundation that cluster downlink is carried to associated base stations, and each base station can be group
Assemble and put G-RNTI and/or SPS G-RNTI, cluster UE can configuration service cell be the cluster assemble the G-RNTI that puts and/or
SPS G-RNTI, it is that the cluster assembles the G- for putting that purpose cell can be reconfigured when cluster UE carries out cell switching or cell reselection
RNTI and/or SPS G-RNTI.
The technical scheme that the present embodiment is provided is directed to the cluster UE of configuration cluster DRX functions, if cluster UE does not configure cluster
DRX functions, then by existing realization, be not described in detail to not configuring the listening mode of cluster UE of cluster DRX functions.
In the embodiment of the present application, base station is that cluster configuration cluster DRX configuration informations assemble the collection put for being embodied as cluster
Power DRX functions, the cluster DRX configuration informations include：Cluster DRX cycle, cluster DRX cycle start time side-play amount, cluster
Group duration timer.
Base station carries in RRC instructions the cluster DRX configuration informations, is sent to cluster UE.
Implement by cluster DRX configuration informations carry RRC instruction in when, by the RRC instruct in increase newly collection
Group DRX configures (TrunkingDRX-Config) cell to carry the cluster DRX configuration informations.
Specifically, TrunkingDRX-Config cells can be in cluster multi call configuration (GroupCallConfig) cell
Increase；Also can increase in clustering paging message (TrunkingPaging) cell.
In order to be more convenient for understanding, two kinds of cluster DRX configuration cell structures are described below, but be not limited to both structures：
The first structure is：
The above-mentioned description for being to be configured for the first cluster DRX cell structure, wherein, collection group duration timer
(onTrunkingGroupDurationTimer) activation of cluster DRX is represented regularly, the length determined set group of the timer
The time of middle UE periodicity monitoring control channel, the value of the collection group duration timer can use the number of PDCCH subframes
Represent.Value psf1 1 PDCCH subframe of correspondence, psf2 2 PDCCH subframes of correspondence, by that analogy.
TrunkingDRX-Cycle represents cluster DRX cycle, and the value in the cluster cycle can be represented with the number of subframe.
Value sf2 2 subframes of correspondence, sf5 5 subframes of correspondence, by that analogy.
TrunkingdrxStartOffset represents cluster DRX cycle start time side-play amount.The cluster DRX cycle starts
The value of instants offset amount is represented with number of subframes.
Second structure be：
The above-mentioned description for being to be configured for second cluster DRX cell structure, wherein, collection group duration timer
(onTrunkingGroupDurationTimer) activation of cluster DRX, is represented regularly, the length determined set group of the timer
The time of middle UE periodicity monitoring control channel, the value of the collection group duration timer can use the number of PDCCH subframes
Represent.Value psf1 1 PDCCH subframe of correspondence, psf2 2 PDCCH subframes of correspondence, by that analogy.
TrunkingDRX-Cycle represents cluster DRX cycle, and the value in the cluster cycle can be represented with the number of subframe.
Value sf2 2 subframes of correspondence, sf5 5 subframes of correspondence, by that analogy.
TrunkingdrxStartOffset represents cluster DRX cycle start time side-play amount.The cluster DRX cycle starts
The value of instants offset amount is represented with number of subframes.
When the RRC that cluster UE receives base station transmission is instructed, acquisition base station is put for the cluster is assembled in RRC instructions
Cluster DRX configuration informations, and store local, to be controlled the monitoring of channel.Cluster DRX configuration informations are carried at this
In the cluster DRX configuration cells increased newly in RRC instructions.
Below in conjunction with the accompanying drawings, describe in detail the embodiment of the present application in trunked communication system discontinuously monitoring control channels
Process.
Referring to Fig. 1, Fig. 1 is for the flow of discontinuously monitoring control channels is shown in trunked communication system in the embodiment of the present application
It is intended to.Concretely comprise the following steps：
Step 101, it is that the cluster assembles the cluster DRX configuration informations put that cluster UE obtains base station.
Step 102, cluster UE determines that collection group holds according to cluster DRX cycle, cluster DRX cycle start time side-play amount
Continuous time timer starts the time.
The startup of collection group's duration timer (onTrunkingGroupDurationTimer) every time in this step
Time be all to meet subframe time started of equation below：
(SFN × 10)+subframe number] modulo (trunkingDRX-Cycle)=
trunkingdrxStartOffset。
Wherein, trunkingDRX-Cycle and trunkingdrxStartOffset gives collection by eNode B configuration concurrencies
Group UE's.
Cluster UE determines that collection group's duration determines according to cluster DRX cycle, cluster DRX cycle start time side-play amount
When device start the time.Since cluster UE start collection group meeting the subframe of above-mentioned formula and continue duration timer；This is determined
When device open after the time in running status be collection group duration timer configuration timing length.The application is implemented
In example, for the cluster UE of configuration cluster DRX functions, when its correspondence collection group duration timer is in running status,
Cluster UE determines current in activationary time.
Step 103, cluster UE monitors PDCCH in activationary time, and the activationary time includes that the collection group continues
Time timer is in the time of running status.
In view of compatible LTE DRX functions, work as cluster UE and be in some cases, such as cluster UE status not
Whether when together, configuring LTE DRX, the embodiment of the present application provides the processing scheme for different situations, specific as follows：
The first situation：Cluster UE is configured with cluster DRX functions, and during in RRC idle conditions, is supervised in activationary time
Listen PDCCH.
Cluster UE will not configure LTE DRX when in RRC idle conditions, therefore, activationary time now only includes：
Collection group duration timer is in the time of running status.
Second situation：Cluster UE is configured with cluster DRX functions, and in RRC connection status, is divided into that case
It is configured with LTE DRX and does not configure LTE DRX.
When LTE DRX are not configured, PDCCH is continuously monitored, i.e., monitored in inactivation time and in activationary time
PDCCH。
When LTE DRX are configured with, PDCCH is monitored in active state；Activationary time now is following either cases
Time of origin, as long as that is, following either cases occur, it is determined that be currently at activationary time：
Collection group duration timer is in the time of running status；
Duration timer (onDurationTimer) is in the time of running status；
Drx- inactivity timers (drx-InactivityTimer) are in the time of running status；
Drx- retransmission timers (drx-RetransmissionTimer) are in the time of running status；
MAC competitions resolution timer (mac-ContentionResolutionTimer) is in the time of running status；
There is the pending dispatch request sent on PUCCH；
The mandate for having ascending HARQ to retransmit is reached, and with the presence of data in corresponding HARQ cachings；
After being successfully received for the accidental access response of lead code selected by non-UE, do not receive what is identified with C-RNTI also
Indicate the PDCCH of new data transmission.
In above-mentioned situation, collection group duration timer is to configure the timer that cluster DRX functions are produced；Duration
Timer, drx- inactivity timers, drx- retransmission timers and MAC competition resolution timer are to configure what LTE DRX were produced
Timer.
In above-mentioned various situations, cluster UE in activationary time, for any PDCCH subframes, when it is determined that the subframe is
A part for measurement interval, and determine that current cluster group duration timer, in when being currently running state, monitors PDCCH；
When it is determined that the subframe is a part for measurement interval, and determine that current cluster group duration timer is not at running status
When, it is not listening to PDCCH.
Consider the point-to-multipoint characteristic of cluster multi call, when UE measurements and group exhale the time conflict of reception, preferential receipt group
Exhale.
When it is determined that the subframe is not a part for measurement interval, following operation is performed：
Monitor PDCCH；And if the PDCCH indicating downlinks scrambled with C-RNTI or T-C RNTI are transmitted or the subframe
Downstream grants are configured with, have then been corresponding HARQ process initiations HARQ RTT timers, and stopped corresponding HARQ processes
Drx- retransmission timers；If indicating once new transmission with the PDCCH that C-RNTI or T-C RNTI are scrambled, start or weigh
Open drx- retransmission timers.
It is at these in particular cases, continuous to monitor also in the presence of some special circumstances in the specific embodiment of the application
PDCCH.These special circumstances are specific as follows：
The RRC connected states UE switchings that reception group has been exhaled, and if cluster UE does not receive the cluster multi call in purpose cell
Corresponding cluster DRX configuration informations；
The IDLE state UE cell reselections that reception group has been exhaled, and if cluster UE does not receive the cluster multi call in purpose cell
Corresponding cluster DRX configuration informations；
G-RNTI is changed, and if cluster UE does not receive the corresponding cluster DRX configuration informations of the cluster multi call.
In spite of monitoring PDCCH, cluster UE will normally send/receive HARQ feedback, if desired, and pass
Defeated type-1 triggers the SRS of type.
In inactivation time, cluster UE should not report type-0 to trigger the SRS of type.If high level configuration CQI
Masking (i.e. cqi-mask), then when onDurationTimer timers are not in operation, should not report in PUCCH
CQI/PMI/RI/PTI；If high level does not configure CQI masking, in inactivation time, CQI/ should not be reported in PUCCH
PMI/RI/PTI。
In activationary time, last subframe is received with the new number of the PDCCH instructions of C-RNTI or T-C RNTI scramblings
After according to transmission (uplink/downlink), most 4 sub- frame in UE can select not reported on PUCCH CQI/PMI/RI/PTI and/
Or transmission type-0 triggers the SRS of type.But this washability does not apply to the onDurationTimer operation phase.
It should be noted that when UE needs the system information, the beep-page message of PCCH and the cluster of TPCCH that read BCCH to seek
Do not influenceed by cluster DRX when exhaling message, the configuration information that can be based on RRC offers monitors correspondence at the corresponding moment respectively
The PDCCH of RNTI (SI-RNTI/P-RNTI/TP-RNTI) scramblings.
It should be noted that when cluster DRX is configured with for the cluster group during being set up in cluster multi call, base station will be protected
Hold and collect group's identical DRX working methods, and know collection group whether in the activation phase in real time.
The activation phase of base station Hui Ji groups dispatches the collection group allocation resource；And UE can be in collection group in the collection group
Each descending sub frame blind check PDCCH receives the group-calling service in the activation phase.
Further, in calling talk process of a Ge Ji groups, RRC state residing for member UE in the collection group
It is different, some UE are likely to be at RRC idle conditions, some UE are likely to be at RRC connection status, or even some UE are exhaled in group
RRC state can also change in communication process.But, for all UE in collecting group, in the activation phase of collection group
Inside have to listen to PDCCH.Interior during the non-clustered of collection group, the UE of RRC connection status exists according to foregoing description in collection group
Some moment also need to monitor PDCCH's.
Based on same inventive concept, the application also proposes discontinuously monitoring control channels in a kind of trunked communication system
Device, be applied in group-calling service carry out during collection group in cluster user equipment UE on, put for the cluster is assembled
Cluster DRX functions.Referring to Fig. 2, Fig. 2 is to be applied to the apparatus structure schematic diagram of above-mentioned technology in the embodiment of the present application.The device
Including：Acquiring unit 201, determining unit 202, monitoring unit 203；
Acquiring unit 201, is that the cluster assembles the cluster DRX configuration informations put for obtaining base station；Wherein, the collection
Group's DRX configuration informations include：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group duration timer；
Determining unit 202, for the cluster DRX cycle, the cluster DRX cycle start time that are obtained according to acquiring unit 201
Side-play amount determines that collection group duration timer starts the time；
Monitoring unit 203, for monitoring Physical Downlink Control Channel in the activationary time that determining unit 202 determines
PDCCH, the activationary time includes that collection group duration timer is in the time of running status.
It is preferred that
Monitoring unit 203, radio resource control RRC connection status is in specifically for cluster UE where this unit,
And when not configuring Long Term Evolution LTE DRX, PDCCH is monitored in inactivation time.
It is preferred that
Monitoring unit 203, RRC connection status is in for cluster UE where this unit, and when being configured with LTE DRX,
PDCCH is monitored in activationary time；The activationary time includes the time that following either cases occur：Collection group's duration is regularly
Device is in the time of running status；Duration timer onDurationTimer is in the time of running status；Drx- is non-to be swashed
Active timer drx-InactivityTimer is in the time of running status；Drx- retransmission timers drx-
RetransmissionTimer is in the time of running status；MAC competition resolution timers mac-
ContentionResolutionTimer is in the time of running status；There is the pending dispatch request sent on PUCCH；
The mandate for having uplink hybrid automatic repeat request HARQ is reached, and with the presence of data in corresponding HARQ cachings；It is properly received
To for after the accidental access response of lead code selected by non-UE, do not receive also and marked with Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI
The PDCCH of the instruction new data transmission of knowledge.
It is preferred that
Monitoring unit 203, is further used in activationary time, for any PDCCH subframes, when it is determined that the subframe is to survey
The part at interval is measured, and determines that current cluster group duration timer, in when being currently running state, monitors PDCCH；When
When to determine the subframe be not a part for measurement interval, following operation is performed：Monitor PDCCH；And if with C-RNTI or T-C
The PDCCH indicating downlinks transmission of RNTI scramblings or the subframe have been configured with downstream grants, then be corresponding HARQ processes
Start HARQ RTT timers, and stop the drx- retransmission timers of corresponding HARQ processes；If with C-RNTI or T-C RNTI
The PDCCH of scrambling indicates once new transmission, then start or restart drx- retransmission timers.
It is preferred that
Monitoring unit 203, be further used for ought reception group has been exhaled RRC connected states UE switching, and if cluster UE do not connect
The cluster multi call is received in the corresponding cluster DRX configuration informations of purpose cell, PDCCH is continuously monitored；The IDLE that reception group is exhaled
State UE cell reselections, and if cluster UE does not receive the cluster multi call in the corresponding cluster DRX configuration informations of purpose cell, company
It is continuous to monitor PCCDH；G-RNTI is changed, and if cluster UE does not receive the corresponding cluster DRX configuration informations of the cluster multi call, company
It is continuous to monitor PDCCH.
It is preferred that
Acquiring unit 201, specifically for obtain base station be that the cluster assembles the cluster DRX configuration informations put when, receive
When being instructed to the RRC that base station sends, it is that the cluster assembles the cluster DRX configuration informations put that base station is obtained in RRC instructions,
Cluster DRX configuration informations are carried in the cluster DRX configuration cells increased newly in RRC instructions.
It is preferred that
Determining unit 202, specifically for determining that the time of startup of collection group duration timer is following public to meet
The subframe time started of formula：[(radio frames frame number SFN × 10)+subframe numbers subframe number] modulo
(trunkingDRX-Cycle)=cluster DRX cycle start time side-play amount trunkingdrxStartOffset；Wherein,
TrunkingDRX-Cycle is cluster DRX cycle.
The unit of above-described embodiment can be integrated in one, it is also possible to be deployed separately；A unit can be merged into, also may be used
To be further split into multiple subelements.
In sum, the application puts cluster DRX functions by for cluster is assembled, and the UE in Shi Ji groups is configured according to base station
Cluster DRX configuration informations determine activationary time, PDCCH is monitored in activationary time.So cluster UE is answering group
PDCCH channels need not be always continuously listened to when exhaling, can be economized on electricity.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (14)
1. in a kind of trunked communication system discontinuously monitoring control channels method, it is characterised in that be applied to exhale industry in group
In the cluster user equipment UE in collection group during being engaged in carrying out, cluster discontinuous reception DRX functions are put for the cluster is assembled；
The method includes：
It is that the cluster assembles the cluster DRX configuration informations put that cluster UE obtains base station；Wherein, the cluster DRX matches somebody with somebody confidence
Breath includes：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group duration timer；
Cluster UE determines collection group duration timer according to cluster DRX cycle, cluster DRX cycle start time side-play amount
The startup time；
Cluster UE monitors physical downlink control channel PDCCH in activationary time, and the activationary time includes the collection group
Duration timer is in the time of running status.
2. method according to claim 1, it is characterised in that methods described is further included：
Cluster UE works as in radio resource control RRC connection status, and when not configuring Long Term Evolution LTE DRX, non-
PDCCH is monitored in activationary time.
3. method according to claim 1, it is characterised in that methods described is further included：
Cluster UE works as in RRC connection status, and when being configured with LTE DRX, PDCCH is monitored in activationary time；
The activationary time includes the time that following either cases occur：
Collection group duration timer is in the time of running status；
Duration timer onDurationTimer is in the time of running status；
Drx- inactivity timers drx-InactivityTimer is in the time of running status；
Drx- retransmission timers drx-RetransmissionTimer is in the time of running status；
MAC competition resolution timers mac-ContentionResolutionTimer is in the time of running status；
There is the pending dispatch request sent on PUCCH；
The mandate for having uplink hybrid automatic repeat request HARQ is reached, and with the presence of data in corresponding HARQ cachings；
After being successfully received for the accidental access response of lead code selected by non-UE, do not receive also interim with cell-radio network
The PDCCH of the instruction new data transmission of mark C-RNTI marks.
4. the method according to claim 1-3 any one, it is characterised in that methods described is further included：
In activationary time, for any PDCCH subframes, when it is determined that the subframe is a part for measurement interval, and determine current
Collection group duration timer is in when being currently running state, monitors PDCCH；
When it is determined that the subframe is not a part for measurement interval, following operation is performed：
Monitor PDCCH；And if with the PDCCH indicating downlinks transmission of C-RNTI or T-C RNTI scramblings or the subframe
Downstream grants are configured with, are then corresponding HARQ process initiations HARQ RTT timers, and stop corresponding HARQ processes
Drx- retransmission timers；If indicating once new transmission with the PDCCH that C-RNTI or T-C RNTI are scrambled, start or restart
Drx- retransmission timers.
5. the method according to claim 1-3 any one, it is characterised in that methods described is further included：
When the RRC connected states UE switchings that reception group is exhaled, and if cluster UE does not receive the cluster multi call in purpose cell pair
The cluster DRX configuration informations answered, continuously monitor PDCCH；
The IDLE state UE cell reselections that reception group has been exhaled, and if cluster UE does not receive the cluster multi call in purpose cell correspondence
Cluster DRX configuration informations, continuously monitor PCCDH；
Group Radio Network Temporary Identifier G-RNTI changes, and if cluster UE does not receive the corresponding cluster DRX of the cluster multi call
Configuration information, continuously monitors PDCCH.
6. the method according to claim 1-3 any one, it is characterised in that it is described that the cluster UE obtains base station
Cluster assembles the cluster DRX configuration informations put, including：
When the RRC that cluster UE receives base station transmission is instructed, the acquisition base station cluster is assembled and put in RRC instructions
Cluster DRX configuration informations, cluster DRX configuration informations are carried in the cluster DRX configuration cells increased newly in RRC instructions.
7. the method according to claim 1-3 any one, it is characterised in that the cluster UE was according to cluster DRX weeks
Phase, cluster DRX cycle start time side-play amount determine that collection group duration timer starts the time, including：
The time of the startup of collection group duration timer is the subframe time started for meeting equation below：
[(radio frames frame number SFN × 10)+subframe numbers subframe number] modulo (trunkingDRX-Cycle)=collection
Group's DRX cycle start time side-play amount trunkingdrxStartOffset；Wherein, trunkingDRX-Cycle is cluster DRX
Cycle.
8. in a kind of trunked communication system discontinuously monitoring control channels device, it is characterised in that be applied to exhale industry in group
In the cluster user equipment UE in collection group during being engaged in carrying out, cluster discontinuous reception DRX functions are put for the cluster is assembled；
The device includes：Acquiring unit, determining unit, monitoring unit；
The acquiring unit, is that the cluster assembles the cluster DRX configuration informations put for obtaining base station；Wherein, the cluster
DRX configuration informations include：Cluster DRX cycle, cluster DRX cycle start time side-play amount, collection group duration timer；
The determining unit, it is inclined for the cluster DRX cycle that is obtained according to the acquiring unit, cluster DRX cycle start time
Shifting amount determines that collection group duration timer starts the time；
The monitoring unit, for monitoring physical downlink control channel PDCCH in the activationary time that the determining unit determines,
The activationary time includes that collection group duration timer is in the time of running status.
9. device according to claim 8, it is characterised in that
The monitoring unit, radio resource control RRC connection status is in specifically for cluster UE where this unit, and not
During configuration Long Term Evolution LTE DRX, PDCCH is monitored in inactivation time.
10. device according to claim 8, it is characterised in that
The monitoring unit, RRC connection status is in for cluster UE where this unit, and when being configured with LTE DRX, in activation
PDCCH is monitored in time；The activationary time includes the time that following either cases occur：At collection group duration timer
In the time of running status；Duration timer onDurationTimer is in the time of running status；Drx- is inactive fixed
When device drx-InactivityTimer be in time of running status；Drx- retransmission timers drx-
RetransmissionTimer is in the time of running status；MAC competition resolution timers mac-
ContentionResolutionTimer is in the time of running status；There is the pending dispatch request sent on PUCCH；
The mandate for having uplink hybrid automatic repeat request HARQ is reached, and with the presence of data in corresponding HARQ cachings；It is properly received
To for after the accidental access response of lead code selected by non-UE, do not receive also and marked with Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI
The PDCCH of the instruction new data transmission of knowledge.
11. device according to claim 8-10 any one, it is characterised in that
The monitoring unit, is further used in activationary time, for any PDCCH subframes, when it is determined that the subframe is measurement
The part at interval, and determine that current cluster group duration timer, in when being currently running state, monitors PDCCH；When true
When the fixed subframe is not a part for measurement interval, following operation is performed：Monitor PDCCH；And if with C-RNTI or T-C
The PDCCH indicating downlinks transmission of RNTI scramblings or the subframe have been configured with downstream grants, then be corresponding HARQ processes
Start HARQ RTT timers, and stop the drx- retransmission timers of corresponding HARQ processes；If with C-RNTI or T-C RNTI
The PDCCH of scrambling indicates once new transmission, then start or restart drx- retransmission timers.
12. device according to claim 8-10 any one, it is characterised in that
The monitoring unit, be further used for ought reception group has been exhaled RRC connected states UE switching, and if cluster UE do not receive
The cluster multi call continuously monitors PDCCH in the corresponding cluster DRX configuration informations of purpose cell；The IDLE states UE that reception group has been exhaled
Cell reselection, and if cluster UE does not receive the cluster multi call in the corresponding cluster DRX configuration informations of purpose cell, continuous prison
Listen PCCDH；Group Radio Network Temporary Identifier G-RNTI changes, and if cluster UE does not receive the corresponding cluster of the cluster multi call
DRX configuration informations, continuously monitor PDCCH.
13. device according to claim 8-10 any one, it is characterised in that
The acquiring unit, specifically for obtain base station be that the cluster assembles the cluster DRX configuration informations put when, receive base
When the RRC for sending that stands is instructed, it is that the cluster assembles the cluster DRX configuration informations put, the collection that base station is obtained in RRC instructions
Group DRX configuration informations are carried in the cluster DRX configuration cells increased newly in RRC instructions.
14. device according to claim 8-10 any one, it is characterised in that
The determining unit, specifically for determining that the time of startup of collection group duration timer is to meet equation below
The subframe time started：[(radio frames frame number SFN × 10)+subframe numbers subframe number] modulo (trunkingDRX-
Cycle)=cluster DRX cycle start time side-play amount trunkingdrxStartOffset；Wherein, trunkingDRX-
Cycle is cluster DRX cycle.
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