CN103024680B - Semi-persistent scheduling Activiation method and the trunked communication system based on semi-persistent scheduling - Google Patents
Semi-persistent scheduling Activiation method and the trunked communication system based on semi-persistent scheduling Download PDFInfo
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Abstract
The invention provides a kind of semi-persistent scheduling Activiation method and the trunked communication system based on semi-persistent scheduling. Wherein method comprises: base station periodically sends group paging message, and sends SPS activation command based on predetermined period; Monitoring users terminal adds in group after receiving described group paging message; Add the monitoring users terminal in group to receive after described SPS activation command, carrying out corresponding group service according to the determined physical resource of described SPS activation command monitors by the present invention, because SPS activation command not only sends once, make to add the monitoring users terminal after group all can determine SPS physical resource, so that activation group service, adds monitoring users can not carry out the difficulty of group's monitoring after having overcome.
Description
Technical field
The present invention relates to a kind of semi-persistent scheduling Activiation method and the system of the trunking communication based on semi-persistent schedulingSystem, (LongTermEvolution is called for short: LTE) private network trunking communicating technology to belong to Long Term EvolutionField.
Background technology
In LTE system, for IP phone (VoIP) business introduced a kind of new scheduling mode-(Semi-PersistentScheduling is called for short: SPS) technology semi-persistent scheduling. Semi-staticScheduling mode refers in the scheduled transmission process of LTE, base station (abbreviation: eNB) in initial scheduleBy Physical Downlink Control Channel (PhysicalDownlinkControlChannel, be called for short:PDCCH) (UserEquipment is called for short: UE) current schedule information, UE equipment for indicating userIdentification is semi-persistent scheduling, preserves current schedule information, and traffic order specify identical timeFrequently on resource location, carry out transmission or the reception of this business datum. By SPS mode, fully profitThe feature periodically arriving by voice packets, once authorizes, and the cycle is used, and can effectively saveLTE system is for dispatching the PDCCH resource of instruction.
In the group service of LTE private network trunked communication system, user is divided into speaker user and monitors and useFamily, speaker user have special Radio Resource control (RadioResourceControl, be called for short:RRC) signal deployment, when the configuration of speaker user's ascending physical signal resource adopts above-mentioned SPS modeTime, because speaker user in a group service generally only has one, the activation of up SPS and releasingPut and adopt existing LTE method just can support. But the situation of monitoring users is different from speaker to be usedFamily, the descending general employing SPS mode of group service, and the resource of descending SPS does not have in groupIn the situation of closing, do not discharge, this is mainly in order to support that saving the SPS eating dishes without rice or wine in group's situation swashsLife order, correspondingly reduces group service SPS resource is discharged continually and activates answering of bringingAssorted degree. Monitoring users is adding after group, there is no other the feelings of Point-to-Point Data business (PS)Under condition, there is no the RRC of configure dedicated, after the mutual group that determines own place of user and core net,By the broadcast signaling of system, concrete is to obtain after resource allocation information by common signal channel, such as(GroupPagingControlChannel is called for short: GPCCH), obtain group paging control channelObtain after the activation group resource allocation information at user place, user adopts default group's resource distribution,And obtain the concrete physical address of SPS of descending distribution by SPS activation command, carry out group's industryThe monitoring of business. After group sets up, the common way of LTE is that SPS activation command is only sent out side onceFormula.
Therefore, in prior art, there are the following problems:
Existing LTE agreement only supports point-to-point SPS to activate, and does not support the SPS of point-to-multipoint to activate.To point-to-point service, if descending SPS group service, the mode adopting is now until group closesClose, group's SPS resource does not discharge, according to former LTE protocol mode, if resource does not discharge, and LTECommon way is that SPS activation command is also only sent out mode once. And group service point multipoint message traffic,User in a group is listening to group paging control channel (Group at the same timePagingControlChannel, is called for short: GPCCH) after message, not all user is sameA time enters group at once, but when after user listens to group paging GPCCH one sectionInterior Network with Random Multiple Access System, monitors. Adopt Network with Random Multiple Access System mode in this period of timeMain purpose is to avoid multi-user carrying out at the same time the impact of up access to network, butThat this mode can cause same group to access network listening to after same group paging messageThe asynchronism(-nization) of monitoring. In the situation that descending SPS resource does not discharge, in existing LTE agreementThe SPS activation command of regulation only sends once. Like this, only issue it at this SPS activation commandBefore, access the monitoring users of group and can monitor the group service issuing, miss current SPSAfter activation command, monitoring users just can not be monitored group service. Even base station group set up after,In continuing for some time, periodically send continuously SPS activation command, but for the prison of rear startListen user, if UE does not add group within the effective time period of SPS activation command, UE alsoBe activation command that can't hear SPS, so just can not realize the monitoring of group service.
Summary of the invention
The invention provides a kind of semi-persistent scheduling Activiation method and the system of the trunking communication based on semi-persistent schedulingSystem, uses so that the monitoring users of random access all can successfully activate group service.
One aspect of the present invention provides a kind of semi-persistent scheduling Activiation method, comprising:
Base station periodically sends group paging message, and sends SPS activation command based on predetermined period;
Monitoring users terminal adds in group after receiving described group paging message;
Add the monitoring users terminal in group to receive after described SPS activation command, according to describedThe determined physical resource of SPS activation command carries out corresponding group service monitoring.
The present invention provides a kind of trunked communication system based on semi-persistent scheduling on the other hand, comprising baseStand and monitoring users terminal, wherein:
Described base station comprises: paging module, for periodically sending group paging message; Command module,For sending SPS activation command based on predetermined period;
Described monitoring users terminal comprises: add module, for when receiving after described group paging messageAdd in group; Active module, for adding module described monitoring users terminal to be added to groupIn after, when receiving after described SPS activation command, according to the determined thing of described SPS activation commandReason resource is carried out corresponding group service monitoring.
By the present invention, because SPS activation command not only sends once, make to add the monitoring after groupUser terminal all can be determined SPS physical resource, to activate group service, adds to monitor and use after having overcomeThe difficulty of group's monitoring can not be carried out in family.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, underAccompanying drawing in face description is some embodiments of the present invention, for those of ordinary skill in the art,Do not pay under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of semi-persistent scheduling Activiation method embodiment of the present invention;
Fig. 2 is the structural representation of the trunked communication system embodiment based on semi-persistent scheduling of the present inventionFigure.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with thisAccompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,Obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment. Based onEmbodiment in the present invention, those of ordinary skill in the art obtain not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope of protection of the invention.
Fig. 1 is the flow chart of semi-persistent scheduling Activiation method embodiment of the present invention, as shown in the figure, and shouldMethod comprises:
Step 110, base station periodically sends group paging message, and sends SPS based on predetermined periodActivation command.
Wherein, described group paging message is to be used to indicate corresponding monitoring users terminal to add disappearing of groupBreath. This group paging message is broadcast to eNodeB Suo Kong community by base station (eNodeB) after group sets upUnder all users, corresponding group sets up and can be initiated by dispatching desk, also can be by speaker's user terminalInitiate. Described speaker's user terminal refers to the UE that speaker user uses, and described monitoring users terminal refers to prisonThe UE that listens user to use.
In the prior art, group paging message and SPS activation command all only send once, and this enforcementExample is with the difference of prior art maximum, the group paging message in the present embodiment and SPS activationOrder is all periodically to send, and periodicity process of transmitting between them is independent separately, is independent of each other.
Particularly, described SPS activation command is to send based on predetermined period, for example can be at PDCCHIn carry out periodicity send. Wherein, described predetermined period can be arranged or be entered by core net by base stationRow configuration, specifically can adopt following two kinds of modes:
Mode one: fixed cycle
In this mode, base station only adopts a kind of fixed cycle in PDCCH, to send described SPS and activates lifeOrder. This fixed cycle can be for example 20 milliseconds, 40 milliseconds, 80 milliseconds or 160 milliseconds, every 20Millisecond, 40 milliseconds, 80 milliseconds or a SPS activation command of 160 milliseconds of clock base stations transmissions;
Mode two: long and short cycle
In this mode, described base station can set up after a group at every turn, sets group's joining dayWindow, or in the time described monitoring users terminal generation handover being detected, set window switching time; ?In described group joining day window or switching time window, send described SPS activation command based on the short period;Described group joining day window or switching time outside window, send described SPS based on long period and activate lifeOrder. For example, the described short period can be 20 milliseconds, 40 milliseconds or 80 milliseconds; Described long period is passableIt is 160 milliseconds.
Wherein, described group joining day window is used to indicate described monitoring users terminal and adds period within whichEnter group, be provided with after group's joining day window, most monitoring users terminals that added groupIn capital Gai group joining day window, add group, therefore in this group's joining day window, SPS is swashedLife order is set to short period transmission, to make monitoring users terminal receive as early as possible SPS activation command,Realize and activating; Correspondingly, also have minority monitoring users terminal because the reasons such as shutdown are failed in time groupIn group joining day window, add group, and can only add group outside window in group's joining day, due to appearanceThe monitoring users terminal of this situation is less, and therefore SPS activation command is set to long period transmission.
Described switching time, window represented that described monitoring users terminal is switched to a section after adjacent Target cellTime, to set after window switching time, base station is in order to make user experience unaffected, at thisIn switching time window, SPS activation command is set to the short period and sends, to there is the monitoring of switchingUser terminal receives SPS activation command as early as possible, makes the monitoring users terminal also can be in Target cellRealize and activate and carry out group service monitoring fast, user's impression is better; After switching time window,Can give tacit consent to the monitoring users terminal that has occurred to switch can supervise normally in this time windowListen, can be set to long period transmission by SPS activation command, to have after other in this Target cellAdd the monitoring users terminal of group also can receive SPS activation command.
Step 120, monitoring users terminal adds in group after receiving described group paging message.
Wherein, in described group paging message, include group list, described monitoring users terminal can rootLearn according to this group list whether oneself belongs to this group, if belonged to, join in this group.
Step 130, has added the monitoring users terminal in group to receive after described SPS activation command,Carry out corresponding group service monitoring according to the determined physical resource of described SPS activation command.
Particularly, in described SPS activation command, carry the time-frequency position indication information of SPS resource, prisonListen user terminal to determine corresponding SPS resource according to this time-frequency positional information, and enter by this SPS resourceThe monitoring of row group service. Wherein, described SPS physical resource can be divided by MAC layer by base stationJoin, then according to allocation result, the time-frequency positional information of distributed SPS resource is carried to SPS and swashsIn life order, carrying out periodicity sends.
By method described in the present embodiment, because SPS activation command not only sends once, make to add groupMonitoring users terminal after group all can be determined SPS physical resource, to activate group service, after having overcomeAdd monitoring users can not carry out the difficulty of group's monitoring.
Fig. 2 is the structural representation of the trunked communication system embodiment based on semi-persistent scheduling of the present inventionFigure, as shown in the figure, this system comprises: base station 10 and monitoring users terminal 20, its operation principle asUnder:
Base station 10 periodically sends group paging message by paging module 11, and passes through command module12 send SPS activation command based on predetermined period. In the prior art, group paging message and SPS swashLife order all only sends once, and the difference of the present embodiment and prior art maximum is, this enforcementGroup paging message in example and SPS activation command be all periodically to send, and periodicity between themProcess of transmitting is independent separately, is independent of each other.
When described monitoring users terminal 20 receives after described group paging message, by adding module 21Add in group. Wherein, in described group paging message, include group list, described monitoring users eventuallyEnd can learn whether oneself belongs to this group according to this group list, if belonged to, joins this groupIn group.
Add module 21 described monitoring users terminal 20 has been added to group in after, when monitor useFamily terminal 20 receives after described SPS activation command, activates life by active module 22 according to described SPSMake determined physical resource carry out corresponding group service monitoring. Particularly, described SPS activation commandIn carry the time-frequency position indication information of SPS resource, monitoring users terminal is according to this time-frequency positional informationDetermine corresponding SPS resource, and carry out the monitoring of group service by this SPS resource. Wherein, described inSPS physical resource can be distributed by MAC layer by base station, then according to allocation result, by divideThe time-frequency positional information of the SPS resource of joining is carried at carries out periodicity and sends in SPS activation command.
By system described in the present embodiment, because SPS activation command not only sends once, make to add groupMonitoring users terminal after group all can be determined SPS physical resource, to activate group service, after having overcomeAdd monitoring users can not carry out the difficulty of group's monitoring.
Alternatively, above-mentioned predetermined period can be arranged or is configured by core net by base station 10, toolBody ground, this predetermined period is the default fixed cycle. Concrete for example can be referring to said method embodiment'sExplanation.
In addition, as shown in Figure 2, described base station 10 can also further arrange group and set up module 13 HesThe first setting module 14. Set up module 13 for setting up group by this group, when group sets up module13 set up after a group at every turn, set group's joining day window by the first setting module 14; FirstIn the described group joining day window that setting module 14 is set, described command module 12 was sent out based on the short periodSend described SPS activation command, the described group joining day outside window, described command module 12 is based on long weekPhase sends described SPS activation command. For example, the described short period can be 20 milliseconds, 40 milliseconds or 80Millisecond; Described long period can be 160 milliseconds.
In addition, as shown in Figure 2, described base station 10 can also further arrange switch detection module 15 HesWhether the second setting module 16, detect described monitoring users terminal 20 by switch detection module 15 and occur moreSwitch in district, in the time that switch detection module 15 detects that handover occurs described monitoring users terminal 20,Set window switching time by the second setting module 16; Set at the second setting module 16 described switching timeBetween in window, described command module 12 sends described SPS activation command based on the short period, adds in described groupOutside window, described command module 12 sends described SPS activation command based on long period in the angle of incidence. For example, instituteStating the short period can be 20 milliseconds, 40 milliseconds or 80 milliseconds; Described long period can be 160 milliseconds.
By adopting above-mentioned long period and short-period mode to send SPS activation command, be conducive to for prisonListen user terminal reasonable quantity adjust the transmission density of SPS activation command so that more realThe activation of existing monitoring users terminal.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodimentCan complete by the relevant hardware of programmed instruction, aforesaid program can be stored in a computer-readableGet in storage medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And it is aforementionedStorage medium comprise: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described, but not to itRestriction; Although the present invention is had been described in detail with reference to previous embodiment, the ordinary skill of this areaPersonnel are to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, orPerson is equal to replacement to part technical characterictic wherein; And these amendments or replacement do not make corresponding skillThe essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (2)
1. a semi-persistent scheduling Activiation method, is characterized in that, comprising:
Base station periodically sends group paging message, and sends SPS activation command based on predetermined period;
Monitoring users terminal adds in group after receiving described group paging message;
Add the monitoring users terminal in group to receive after described SPS activation command, according to describedThe determined physical resource of SPS activation command carries out corresponding group service monitoring;
Described base station sends SPS activation command based on predetermined period and comprises:
Described base station is set up after a group at every turn, sets group's joining day window;
In described group joining day window, send described SPS activation command based on the short period; DescribedGroup's joining day, sends described SPS activation command based on long period outside window;
Or,
Described base station sends SPS activation command based on predetermined period and comprises:
In the time described monitoring users terminal generation handover being detected, set window switching time;
In described switching time window, send described SPS activation command based on the short period; In described switchingOutside time window, send described SPS activation command based on long period.
2. the trunked communication system based on semi-persistent scheduling, is characterized in that, comprises base station and monitoringUser terminal, wherein,
Described base station comprises:
Paging module, for periodically sending group paging message;
Command module, for sending SPS activation command based on predetermined period;
Described monitoring users terminal comprises:
Add module, for adding group when receiving after described group paging message;
Active module, for add module described monitoring users terminal has been added group withAfter, when receiving after described SPS activation command, according to the determined physics money of described SPS activation commandCorresponding group service monitoring is carried out in source;
Described base station also comprises:
Group sets up module, for setting up group;
The first setting module is set up after a group for set up module when group at every turn, sets group and addsAngle of incidence window;
In the described group joining day window that described command module is used for setting at the first setting module, based onShort period sends described SPS activation command, and for the described group joining day outside window, based on long weekPhase sends described SPS activation command;
Or,
Described base station also comprises:
Whether switch detection module, there is handover for detection of described monitoring users terminal;
The second setting module, for detecting that in switch detection module more district occurs described monitoring users terminalWhen switching, set window switching time;
Described command module is for described switching time of setting at the second setting module in window, based on short weekPhase sends described SPS activation command, and for described switching time outside window, based on long period send instituteState SPS activation command.
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| CN104469747B (en) * | 2013-09-23 | 2018-06-26 | 普天信息技术有限公司 | Receive the method and terminal of downlink data |
| CN104519466B (en) * | 2013-09-29 | 2018-02-23 | 普天信息技术有限公司 | The Semi-static scheduling method of point-to-multipoint group service |
| CN104754754B (en) * | 2013-12-26 | 2018-02-27 | 普天信息技术研究院有限公司 | Delay access method under semi-persistent scheduling |
| CN106470399B (en) * | 2015-08-14 | 2019-08-23 | 普天信息技术有限公司 | The method and system of semi-continuous scheduling reactivation in cluster multi call business |
| WO2018058637A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | Multicast data scheduling method, terminal device, and access network device |
| CN109728884B (en) * | 2017-10-27 | 2021-07-27 | 成都鼎桥通信技术有限公司 | Cluster data transmission method and device |
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