CN103139845B - private network group paging method and base station - Google Patents
private network group paging method and base station Download PDFInfo
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Abstract
The invention provides a kind of private network group paging method and base station, wherein method comprises: base station judges the paging delivery moment at GPCCH, and whether multiple group paging information of carrying in group page message to be issued all issue successfully; If judged result is no, then raise the channel parameter of described GPCCH, send described group page message with the described channel parameter after raising; If the determination result is YES, then lower the channel parameter of described GPCCH, send described group page message with the described channel parameter after lowering.The present invention has carried out dynamic conditioning according to cell load to the channel parameter of GPCCH, and when raising channel parameter, the success facilitating group paging information issues, thus improves and issue success rate, decreases the time delay of group paging; When lowering channel parameter, decreasing GPCCH taking base station system resource, thus avoiding the wasting of resources.
Description
Technical field
The present invention relates to a kind of private network group paging method and base station, belong to trunking communicating technology field.
Background technology
Long Term Evolution (Lone Term Evolution, be called for short: LTE) group system is a kind of private network group system realized based on LTE technology, this system adopts group special Paging Control Channel (Group Paging Control CHannel, be called for short: GPCCH), so that it is large to meet group paging capacity, the requirement of delay requirement high-technology.
The maximum transmitted ability of GPCCH is determined by factors such as system bandwidth, code check and modulation systems.Wherein, code check refers to the ratio between the useful information bit number that GPCCH carries and total bit number that GPCCH carries, described total bit number=useful information bit number+redundant bit number, described redundant bit refers to ensure the bit for error detection or error correction increased with the transmission reliability of information bit.Such as, supposing the system bandwidth is 5M, and code check is 0.117, and modulation system is QuadraturePhase Shift Keying, is called for short: QPSK), then the maximum transmitted useful information bit of GPCCH is 737; When system bandwidth wherein becomes 20M, the maximum transmitted useful information bit 2216 of GPCCH.
In the prior art, periodically send group page message in GPCCH, include multiple group paging information in each group page message, every bar group paging information is used for setting up paging group, adds group for monitoring users terminal.The length supposing every bar group paging information is 48 bits, and when system bandwidth is 5M, the maximum newly-built group paging number that can carry in a paging cycle is 737/48=15; When system bandwidth is 20M, the maximum newly-built paging group number that can carry in a paging cycle is 2216/48=46
The problem of prior art is:
When cell load is higher, because the maximum transmitted of GPCCH is limited in one's ability, therefore some group paging information may be caused failure is issued when issuing group page message, can only wait until that residue is not issued successful group paging information and issues by the next paging delivery moment, thus the time delay of group paging can be increased.
When cell load is lower, although the group page message in group page message all can successfully issue in time, likely takies too much base station system resource, thus cause the wasting of resources.
Summary of the invention
The invention provides a kind of private network group paging method and base station, in order to time delay and the resource of dynamic conditioning group paging, the balance between the group number supported with keeping system and group paging performance.
One aspect of the present invention provides a kind of private network group paging method, comprising:
Base station judges the paging delivery moment at GPCCH, and whether multiple group paging information of carrying in group page message to be issued all issue successfully;
If judged result is no, then raise the channel parameter of described GPCCH, send described group page message with the described channel parameter after raising;
If the determination result is YES, then lower the channel parameter of described GPCCH, send described group page message with the described channel parameter after lowering.
The present invention provides a kind of base station on the other hand, comprising:
Judge module, for judging the paging delivery moment at GPCCH, whether multiple group paging information of carrying in group page message to be issued all issue successfully;
Raise module, for when the judged result of judge module is no, raise the channel parameter of described GPCCH;
Lowering module, for when the judged result of judge module is for being, lowering the channel parameter of described GPCCH;
Sending module, send described group page message, and the described channel parameter after lowering for following mode transfer block sends described group page message for the described channel parameter after above mode transfer block raises.
The present invention has carried out dynamic conditioning according to cell load to the channel parameter of GPCCH, and when raising channel parameter, the success facilitating group paging information issues, thus improves and issue success rate, decreases the time delay of group paging; When lowering channel parameter, decreasing GPCCH taking base station system resource, thus avoiding the wasting of resources.
Accompanying drawing explanation
Fig. 1 is the flow chart of private network group paging embodiment of the method for the present invention;
Fig. 2 is the flow chart of the rise process in step 200 shown in Fig. 1;
Fig. 3 is the flow chart of the downward process in step 300 shown in Fig. 1;
Fig. 4 is the structural representation of base station embodiment of the present invention;
Fig. 5 is the structural representation raising module 20 shown in Fig. 4;
Fig. 6 is the structural representation lowering module 30 shown in Fig. 4.
Embodiment
Fig. 1 is the flow chart of private network group paging embodiment of the method for the present invention, as shown in the figure, comprises the steps:
Step 100, base station judges the paging delivery moment at GPCCH, and whether multiple group paging information of carrying in group page message to be issued all issue successfully, if judged result is no, then shows that the current load in community is comparatively large, performs step 200; If the determination result is YES, then show that the current load in community is less, perform step 300.
Wherein, the described paging delivery moment is the moment issuing group page message determined by paging cycle; Carry multiple group paging information in described group page message, each group paging information is used for setting up a group, after relevant monitoring users terminal monitoring to relevant group page message, adds this group.
Step 200, raises the channel parameter of described GPCCH, sends described group page message with the described channel parameter after raising.
Wherein, the channel parameter of described GPCCH can comprise code check, transient resource occupancy and paging cycle.Code check is higher, and the ratio that redundant bit number accounts for the total bit number of GPCCH channel is lower, and reliability is lower, otherwise code check is lower, and reliability is higher; Paging cycle is higher, and the time interval issued between every two same group beep-page messages is larger, and the group page message that can issue in the unit interval is fewer, otherwise then more.Base station issues described group page message according to these channel parameters at GPCCH, and concrete rise process will be described in detail in subsequent content.
Step 300, lowers the channel parameter of described GPCCH, sends described group page message with the described channel parameter after lowering.
Wherein, the channel parameter of described GPCCH can comprise code check, transient resource occupancy and paging cycle, and concrete downward process will be described in detail in subsequent content.
Below introduce the rise process in above-mentioned steps 200 in detail, as shown in Figure 2, comprise the steps:
Step 210, when described code check is less than default limit bit rate value and current transient resource occupancy is more than or equal to default occupancy higher limit, raises described code check.
For convenience of description, use symbol CR to represent described code check, use symbol CRmax to represent described limit bit rate value, use IR to represent described transient resource occupancy, use symbol IRmax to represent described occupancy higher limit.Correspondingly, the executive condition of this step can symbolically be: as CR < CRmax and IR >=IRmax time.
Wherein, described CRmax, in order to ensure that transmission reliability sets, shows that as CR < CRmax code check also has the leeway of raising; Described transient resource occupancy refers to that resource that GPCCH is at a time distributed in base station accounts for the ratio of base station system total resources, described IRmax is the maximum of the transient resource occupancy allowed, as IR >=IRmax, represent that current GPCCH has occupied more base station system resource, therefore the IR leeway of not raised.Therefore, raise CR in this step, specific practice can be that this code check is increased the rate adjust value Δ CR preset, and symbolically is: CR=CR+ Δ CR.
This step, by raising CR, makes the ratio of useful information bit number in total bit number raise, thus makes the GPCCH channel with identical total bit number bearing capacity carry more useful information, therefore, it is possible to promote that the success of group paging information issues.
Step 220, when described code check is less than described limit bit rate value and described transient resource occupancy is less than described occupancy higher limit, raises described transient resource occupancy.
Correspondingly, the executive condition of this step can symbolically be: as CR < CRmax and IR < IRmax time.Visible, CR and IR now also has the leeway of rise, but preferably raise IR in this step, specific practice is: keep described code check and described paging cycle constant, increase the quantity of group page message to be issued in GPCCH, and increase the resource distributing to described GPCCH, IR is raised, as IR >=IRmax, then meet the executive condition of step 210.
This step, by raising IR, makes GPCCH get more resource from base station, therefore, it is possible to promote that the success of group paging information issues.
Step 230, when described code check be more than or equal to described limit bit rate value and described paging cycle be less than default upper cycle limit value and described transient resource occupancy is more than or equal to described occupancy higher limit time, raise described paging cycle.
Wherein, use symbol PR to represent described paging cycle, use symbol PRmax to represent described upper cycle limit value, wherein, PRmax is the maximum that the permission paging cycle preset can reach.Correspondingly, the executive condition of this step can symbolically be: as CR >=CRmax and PR < PRmax and IR >=IRmax time, as can be seen here, PR is now only had to also have the leeway of raising, therefore PR is raised in this step, specific practice is the paging cycle PR raising in GPPCH the group page message carried, and such as PR will be transferred to a larger predetermined period.
This step, by raising PR, makes the frequency that issues of group page message reduce, thus makes GPCCH can carry more group page message, thus promote that more group paging information successfully issues.
Step 240, when described code check be more than or equal to described limit bit rate value and described paging cycle be more than or equal to described upper cycle limit value and described transient resource occupancy is less than described occupancy higher limit time, keep described code check and described paging cycle constant, increase the quantity of group page message to be issued in GPCCH, and increase the resource distributing to described GPCCH, transient resource occupancy is raised;
Correspondingly, the executive condition of this step can symbolically be: as CR >=CRmax and PR < PRmax and IR < IRmax time.Visible, PR and IR now also has the leeway of rise, but preferably raises IR in this step, and concrete method for modulating up, see the explanation in above-mentioned steps 220, as IR >=IRmax, then meets the executive condition of step 230.
This step, by raising IR, makes GPCCH get more resource from base station, therefore, it is possible to promote that the success of more multigroup group paging information issues.
In addition, as CR >=CRmax and PR >=PRmax and IR >=IRmax time, then show the leeway that this three channel parameters all do not raise, now additive method of the prior art can only be adopted to solve latency issue, this content is unrelated to the invention, repeats no more herein.
Below introduce the downward process in above-mentioned steps 300 in detail, as shown in Figure 3, comprise the steps:
Step 310, when code check is less than code check maximum and current transient resource occupancy is more than or equal to default occupancy higher limit, lowers described transient resource occupancy after first raising code check.
Correspondingly, the executive condition of this step can symbolically be: as CR < CRmax and IR >=IRmax time, visible, IR is now too high, and CR has the leeway of rise, lower IR after therefore first raising CR in this step, specific practice is: the quantity maintaining the group paging information of carrying in described group page message is constant, and reduce the resource distributing to described GPCCH, IR is reduced.As long as CR is no more than CRmax, IR can be made to drop to below IRmax by repeatedly adjusting.
This step, by lowering IR, makes transient resource occupancy decline, thus decreases the wasting of resources.
Step 320, when code check is more than or equal to code check maximum and current transient resource occupancy is less than default occupancy higher limit, lowers described code check after first raising described transient resource occupancy.
Correspondingly, the executive condition of this step can symbolically be: as CR >=CRmax and IR < IRmax time, visible, CR is now too high, and IR has the leeway of rise, therefore lower CR after first raising IR in this step, specific practice can be that this code check is reduced the rate adjust value Δ CR preset, and symbolically is: CR=CR-Δ CR.As long as IR is no more than IRmax, CR can be made to drop to below CRmax by repeatedly adjusting.
This step, by lowering CR, makes ratio shared by the redundant bit number in total bit number higher, thus is conducive to the reliability improving transmission.
Step 330, when paging cycle is greater than default cycle minimum value, lowers described paging cycle.
Wherein, described cycle minimum value shows the minimum value allowing the group paging cycle to reach, and can symbolically be: PRmin.Correspondingly, the executive condition of this step can symbolically be: as PR > PRmin, visible, PR now has the leeway of downward, therefore PR is lowered in this step, specific practice can from being lower GPCCH the paging cycle PR carrying group page message, such as PR is lowered to a less predetermined period.
By lowering PR in this step, chronomere's density of certain specific group page message that the unit interval is issued improves, thus raising monitoring users terminal adds the probability of relevant groups, reduces the time delay adding group.
Method described in the present embodiment has carried out dynamic conditioning according to cell load to the channel parameter of GPCCH, and when raising channel parameter, the success facilitating group paging information issues, thus improves and issue success rate, decreases the time delay of group paging; When lowering channel parameter, decreasing GPCCH taking base station system resource, thus avoiding the wasting of resources.
Fig. 4 is the structural representation of base station embodiment of the present invention, and use to implement the above described method, as shown in the figure, this base station comprises: judge module 10, rise module 20, downward module 30 and sending module 40, and its operation principle is as follows:
Judge module 10 in base station judges the paging delivery moment at GPCCH, and whether multiple group paging information of carrying in group page message to be issued all issue successfully; When the judged result of judge module 10 is no, show that the current load in community is comparatively large, by the channel parameter raising module 20 and raise described GPCCH, and send described group page message by the described channel parameter after sending module more than 40 mode transfer block 20 raises; When the judged result of judge module 10 is for being, show that the current load in community is less, by the channel parameter lowering module 30 and lower described GPCCH, and the described channel parameter after being lowered by sending module less than 40 mode transfer block 30 sends described group page message.
Below above-mentioned rise process is introduced in detail, as shown in Figure 5, when code check is less than default limit bit rate value and current transient resource occupancy is more than or equal to default occupancy higher limit, the code check raised in module 20 raises unit 21 and raises described code check, namely as CR < CRmax and IR >=IRmax time, raise CR.By raising CR, the ratio of useful information bit number in total bit number being raised, thus makes the GPCCH channel with identical total bit number bearing capacity carry more useful information, therefore, it is possible to promote that the success of group paging information issues.
When described code check is less than described limit bit rate value and described transient resource occupancy is less than described occupancy higher limit, raise unit 22 by occupancy and raise described transient resource occupancy, namely as CR < CRmax and IR < IRmax time, raise IR.By raising IR, GPCCH is made to get more resource from base station, therefore, it is possible to promote that the success of group paging information issues.
When described code check be more than or equal to described limit bit rate value and described paging cycle be less than default upper cycle limit value and described transient resource occupancy is more than or equal to described occupancy higher limit time, raise unit 23 by the cycle and raise described paging cycle, namely as CR >=CRmax and PR < PRmax and IR >=IRmax time, raise PR.By raising PR, the frequency that issues of group page message being reduced, thus makes GPCCH can carry more group page message, thus promoting that more group paging information successfully issues.
When described code check be more than or equal to described limit bit rate value and described paging cycle be more than or equal to described upper cycle limit value and described transient resource occupancy is less than described occupancy higher limit time, raise unit 22 by occupancy and raise described transient resource occupancy, namely as CR >=CRmax and PR < PRmax and IR < IRmax time, raise IR.By raising IR, GPCCH is made to get more resource from base station, therefore, it is possible to promote that the success of more multigroup group paging information issues.
Below above-mentioned downward process is introduced in detail, as shown in Figure 6, when code check is less than code check maximum and current transient resource occupancy is more than or equal to default occupancy higher limit, lowered after module 31 first raises code check by the occupancy lowered in module 30 and lower described transient resource occupancy, namely as CR < CRmax and IR >=IRmax time, first raise after CR and lower IR.By lowering IR, transient resource occupancy being declined, thus decreases the wasting of resources.
When code check is more than or equal to code check maximum and current transient resource occupancy is less than default occupancy higher limit, lowered after unit 32 first raises described transient resource occupancy by code check and lower described code check, namely as CR >=CRmax and IR < IRmax time, first raise after IR and lower CR.By lowering CR, make ratio shared by the redundant bit number in total bit number higher, thus be conducive to the reliability improving transmission.
When paging cycle is greater than default cycle minimum value, lowers unit 33 by the cycle and lower described paging cycle, namely as PR > PRmin, lower PR.By lowering PR, chronomere's density of certain specific group page message that the unit interval is issued improves, thus raising monitoring users terminal adds the probability of relevant groups, reduces the time delay adding group.
Base station described in the present embodiment has carried out dynamic conditioning according to cell load to the channel parameter of GPCCH, and when raising channel parameter, the success facilitating group paging information issues, thus improves and issue success rate, decreases the time delay of group paging; When lowering channel parameter, decreasing GPCCH taking base station system resource, thus avoiding the wasting of resources.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a private network group paging method, is characterized in that, comprising:
Base station judges the paging delivery moment at GPCCH, and whether multiple group paging information of carrying in group page message to be issued all issue successfully;
If judged result is no, then raise the channel parameter of described GPCCH, send described group page message with the described channel parameter after raising;
If the determination result is YES, then lower the channel parameter of described GPCCH, send described group page message with the described channel parameter after lowering;
Wherein, the channel parameter of the described GPCCH of described rise comprises:
When code check is less than default limit bit rate value and current transient resource occupancy is more than or equal to default occupancy higher limit, raise described code check;
When described code check is less than described limit bit rate value and described transient resource occupancy is less than described occupancy higher limit, raise described transient resource occupancy;
When described code check be more than or equal to described limit bit rate value and paging cycle be less than default upper cycle limit value and described transient resource occupancy is more than or equal to described occupancy higher limit time, raise described paging cycle;
When described code check be more than or equal to described limit bit rate value and described paging cycle be more than or equal to described upper cycle limit value and described transient resource occupancy is less than described occupancy higher limit time, raise described transient resource occupancy;
The channel parameter of the described GPCCH of described downward comprises:
When code check is less than limit bit rate value and current transient resource occupancy is more than or equal to default occupancy higher limit, after first raising code check, lower described transient resource occupancy;
When code check is more than or equal to limit bit rate value and current transient resource occupancy is less than default occupancy higher limit, after first raising described transient resource occupancy, lower described code check;
When paging cycle is greater than default cycle minimum value, lower described paging cycle.
2. method according to claim 1, it is characterized in that, described rise described transient resource occupancy comprises: keep described code check and described paging cycle constant, increase the quantity of group page message to be issued in GPCCH, and increase the resource distributing to described GPCCH, described transient resource occupancy is raised.
3. method according to claim 1, it is characterized in that, described downward described transient resource occupancy comprises: the quantity maintaining the group paging information of carrying in described group page message is constant, and reduces the resource distributing to described GPCCH, and described transient resource occupancy is reduced.
4. a base station, is characterized in that, comprising:
Judge module, for judging the paging delivery moment at GPCCH, whether multiple group paging information of carrying in group page message to be issued all issue successfully;
Raise module, for when the judged result of judge module is no, raise the channel parameter of described GPCCH;
Lowering module, for when the judged result of judge module is for being, lowering the channel parameter of described GPCCH;
Sending module, send described group page message, and the described channel parameter after lowering for following mode transfer block sends described group page message for the described channel parameter after above mode transfer block raises;
Wherein, described rise module comprises:
Code check raise unit, for be less than default limit bit rate value when code check and current transient resource occupancy is more than or equal to default occupancy higher limit time, raise described code check;
Occupancy raises unit, for be less than described limit bit rate value when described code check and described transient resource occupancy is less than described occupancy higher limit time, raise described transient resource occupancy, and for be more than or equal to described limit bit rate value when described code check and paging cycle be more than or equal to default upper cycle limit value and described transient resource occupancy is less than described occupancy higher limit time, raise described transient resource occupancy;
Cycle raise unit, for be more than or equal to described limit bit rate value when described code check and described paging cycle be less than default upper cycle limit value and described transient resource occupancy is more than or equal to described occupancy higher limit time, raise described paging cycle;
Described downward module comprises:
Occupancy lower module, for be less than limit bit rate value when code check and current transient resource occupancy is more than or equal to default occupancy higher limit time, first rise code check after lower described transient resource occupancy;
Code check lower unit, for be more than or equal to limit bit rate value when code check and current transient resource occupancy is less than default occupancy higher limit time, lower described code check after first raising described transient resource occupancy;
Cycle lowers unit, during for being greater than default cycle minimum value when paging cycle, lowers described paging cycle.
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| CN1901741A (en) * | 2006-07-18 | 2007-01-24 | 华为技术有限公司 | Radio open paging channel self adaption regulating method in CDMA system |
| CN101237391A (en) * | 2007-02-01 | 2008-08-06 | 中兴通讯股份有限公司 | Channel bandwidth dynamic adjusting device and method |
| CN102202399A (en) * | 2011-05-18 | 2011-09-28 | 大唐移动通信设备有限公司 | Method for adjusting channel expecting carrier-to-interference ratio and apparatus thereof |
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| CN1901741A (en) * | 2006-07-18 | 2007-01-24 | 华为技术有限公司 | Radio open paging channel self adaption regulating method in CDMA system |
| CN101237391A (en) * | 2007-02-01 | 2008-08-06 | 中兴通讯股份有限公司 | Channel bandwidth dynamic adjusting device and method |
| CN102202399A (en) * | 2011-05-18 | 2011-09-28 | 大唐移动通信设备有限公司 | Method for adjusting channel expecting carrier-to-interference ratio and apparatus thereof |
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