CN102149107A - Method for distributing tracking area list - Google Patents
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- CN102149107A CN102149107A CN2010101109605A CN201010110960A CN102149107A CN 102149107 A CN102149107 A CN 102149107A CN 2010101109605 A CN2010101109605 A CN 2010101109605A CN 201010110960 A CN201010110960 A CN 201010110960A CN 102149107 A CN102149107 A CN 102149107A
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Abstract
The invention discloses a method for distributing a tracking area list. The method comprises the steps of detecting a frequency of network-side paging user equipment UE; and reducing the number of tracking areas included in the tracking area list while the frequency is more than a first preset value or increasing the number of the tracking areas included in the tracking area list while the frequency is less than a second preset value. By using the invention, network resources can be saved.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of distribution method of tracking zone list.
Background technology
In the 2G/3G system, (Serving GPRS Support Node, SGSN) for UE distributes a RAI, UE moves in this RAI scope and does not carry out location area updating Serving GPRS Support Node.When UE moved to new RAI but also do not have completing place district renewal process, UE only supported the data service that oneself is initiated, and support terminal is not ended the business of (Mobile Terminated), and just UE does not support paging.
The problem that UE in the present 2G/3G system carries out the Routing Area Update existence comprises: (1) is because SGSN only for UE has distributed a RAI, when UE moves repeatedly, can produce table tennis (Ping Pang) Routing Area Update process between two adjacent R AI; (2) because UE need carry out Routing Area Update continually, thus system to be used for the signaling consumption of Routing Area Update excessive.
In view of above-mentioned technical problem, (Evolved Packet System is EPS) in the system, when UE is registered to mobile management entity (Mobility ManagcmentEntity by E-UTRAN in the evolution data system, MME) time, MME need distribute a TAI List to UE.The TAI List maximum that MME distributes to UE can comprise 16 TAI.When UE is mobile in the TAI indicators track zone that TAI List is comprised, need not to carry out general tracing section updating process.Comprise the last TAI that arrives of this UE among this TAI List, therefore both can solve the problem of the Routing Area Update of rattling in the 2G/3G system, also can solve the excessive problem of signaling consumption of Routing Area Update.
But,, do not provide clear and definite technical scheme in the prior art for how being each UE distribution T AI List among the EPS.If TAI List is excessive, because each TAI that need be in the TAIList of this UE when paging UE is issuing page message, then can cause the excessive problem of call signaling expense, if TAI List is too small, can cause the excessive problem of Routing Area Update signaling consumption again, therefore, how reasonably distribution T AI List is a technical problem that needs to be resolved hurrily.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide a kind of distribution method of tracking zone list, to save Internet resources.
For achieving the above object, the technical scheme of the embodiment of the invention specifically is achieved in that
A kind of distribution method of tracking zone list, this method comprises:
Detect the frequency of network side paging user equipment (UE), reduce the tracing area number that comprises in the tracking zone list during greater than predetermined value, perhaps increase the tracing area number that comprises in the tracking zone list during less than predetermined value in frequency in frequency.
As shown from the above technical solution, the present invention saves Internet resources by balancing paging expense and Routing Area Update expense, concrete by detecting the frequency of network side paging UE, utilize this frequency to adjust the tracing area number that comprises in the tracking zone list, be not used for paging so that do not have too much Internet resources, perhaps be used for Routing Area Update, thus balancing paging expense and Routing Area Update expense, and then save Internet resources.
Particularly, in frequency during greater than predetermined value, to cause being used for the network resource consumption such as call signaling expense of this UE of paging more because the paging frequency is crossed senior general, therefore the present invention reduces the consumption of Internet resources such as call signaling expense by the tracing area number in the minimizing tracking zone list, similarly, in frequency during less than predetermined value, increase the tracing area number that comprises among the TAI List and can't cause a large amount of network resource consumption that paging causes, but but can reduce the Internet resources that Routing Area Update takies.
As fully visible, can save Internet resources by the present invention.
Description of drawings
Fig. 1 is the distribution method flow chart of TAI List provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The present invention saves Internet resources by balancing paging expense and Routing Area Update expense, concrete by detecting the frequency of network side paging UE, utilize this frequency to adjust the tracing area number that comprises in the tracking zone list, be not used for paging so that do not have too much Internet resources, perhaps be used for Routing Area Update, thereby balancing paging expense and Routing Area Update expense, and then save Internet resources.
Method of the present invention is applicable to the LTE network, the tracking zone list of this moment is TAI List, tracing area is TAI (Tracking Area Identity), but the present invention is not limited to the LTE network, when UTRAN and GERAN network introducing RAI (Routing Area Identity) List mechanism, the inventive method stands good.Be example with the LTE network below, concrete application process of the present invention described:
Fig. 1 is the distribution method flow chart of TAI List provided by the invention.
As shown in Figure 1, this method comprises:
Whether step 102 judges this frequency greater than first predetermined value or less than second predetermined value, if greater than first predetermined value, and execution in step 103, if less than second predetermined value, execution in step 104.
Wherein, network side can detect the paged number of times of UE in the continuous time, and then calculates the paged frequency of this UE; Also can in UE is in time of idle condition, detect the paged number of times of UE, and then calculate the paged frequency of this UE.
The present invention can also adjust the number of TAI among the TAI List according to a plurality of class of paging frequency configuration, makes that the adjustment of TAI List is more accurate.Particularly, described first predetermined value can comprise plural higher limit, reduces different TAI numbers during greater than different higher limit in frequency; Described second predetermined value can comprise plural lower limit, increases different TAI numbers during less than different lower limit in frequency.
Wherein, about described first predetermined value and second predetermined value, can be that situation according to each UE is provided with predetermined value respectively for each UE, perhaps all UE that are respectively each MME subordinate according to the situation of each MME are provided with predetermined value, perhaps (Public Land MobileNetwork, situation PLMN) is provided with predetermined value for all UE of each PLMN subordinate according to each public land mobile network.
The principle of the TAI number that comprises among the minimizing TAI List can have multiple, and the present invention does not limit, and as a kind of feasible program, can will delete from this TAI List apart from this UE current service TAI TAI farthest.
The principle of the TAI number that comprises among the big TAI List also can have multiple, and the present invention does not still limit, and as a kind of feasible program, the nearest TAI of all TAI middle distances this UE current service TAI in current TAI List not can be added into this TAI List.
After distributing TAI List, network side heavily distributes (GUTIReallocation) process that the TAI List that distributes is issued UE by global unique temporary identity.In addition, if UE is connected with the current signaling of not setting up safety of MME, can't the TAI List that distribute be issued UE by GUTI Reallocation process, then MME can be at follow-up mobile management (Mobility Management, MM) process is issued UE with the TAI List that distributes, for example, if follow-up MM process is the TAU process, and reorientation does not take place in MME, then MME issues UE with the TAI List that distributes in this TAU process, if follow-up MM process is service request (Service Request) process, MME issues UE by GUTI Reallocation process with the TAI List that distributes.
For concrete example the present invention is illustrated below.
Embodiment one
When MME detected in the continuous unit interval, when the Paging of UE (not comprising repeated paging) frequency (or number of times) reaches certain specific upper limit value, just in follow-up process, reduce the TAI List of UE.
Wherein, the continuous unit interval can be 1 hour, and 5 hours etc., this continuous unit interval can be provided with in MME.MME was recorded in this unit interval, and to the number of times of the paging of this UE, this number of times promptly is the paging frequency in the unit interval.
After if the number of times of the paging in the continuous unit interval reaches a specific upper limit value of setting in advance, behind UE response beep-page message, UE can be linked into MME by service request (Service Request), at this moment, after the signaling of UE and MME foundation safety is connected, MME just to UE send GUTIReallocation Command message with a new TAI List to UE, the TAI List that new TAI List compares and distributes to UE originally has the TAI of less number.Notice that a TAI List comprises 16 TAI at most.After UE response GUTI Reallocation Complete message was given MME, MME just confirmed new
TAI List distributed to UE.After this, MME restarts the detection of the Paging frequency of a new round.
For example, the continuous unit interval that MME is provided with is 1 hour, and the specific higher limit of the Paging frequency (or number of times) of UE is 5.MME begins to add up the paging number of times to UE from 9:03 (9: 3 morning), after 46 minutes, be 9:49, MME has initiated the paging to this UE once more, and paging this time is the 5th paging in these 46 minutes, be (to note in the unit interval, unit interval does not also finish), paging number of times to UE has reached this specific higher limit 5, at this moment, UE is by Service Request process response beep-page message and set up with after the security signaling of MME is connected, and MME distributes to UE by GUTI Reallocation process with the TAI List of a minimizing.After this, MME begins the detection of a new Paging number of taking turns, promptly MME record behind the 9:49 in 1 hour, the number of times of Paging, thereby the process above repeating.
The method that MME reduces TAI number among the TAI List has a variety of, and the present invention does not do any specific qualification, a feasible method, MME deletion and the current TAI distance of UE TAI farthest.
The advantage of embodiment one is very simple, but the statistical comparison that a weak point is arranged is the unit interval simply is to adopt statistics continuous time, because have very big part UE to be in connection status in this continuous unit interval.Therefore, improved method is a statistics at the accumulative total that is in idle condition of UE (being in the discontinuous unit interval) paging number of times in the unit interval.
Embodiment two
The UE that detects idle condition as MME was accumulated in the unit interval, when the Paging of UE (not comprising repeated paging) frequency (or number of times) reaches certain specific upper limit value, just reduced the TAI List of UE in follow-up process.
For example, the accumulative total unit interval of the idle condition UE that MME is provided with is 1 hour, and the specific higher limit of the Paging frequency (or number of times) of UE is 5.9:03 (9: 3 morning) UE enters idle shape, and MME picks up counting, this UE of paging during 9:13, and UE enters connection status, and the free time of MME record UE this moment is 10 minutes, and the paging number of times is 1 time.9:23UE enters idle condition, 9:34 paging UE, UE enters connection status, this moment the UE free time accumulative total of MME record be 21 (=10+11), the paging number of times is 2 times, by that analogy, when 11:05, it has been the 5th that the number of times of MME paging UE begins from 9:03, and the free time of the UE of MME record totally has 40 minutes, UE response paging enters connection status, and (notice that the unit interval does not also finish) this moment in the unit interval, paging number of times to UE has reached this specific higher limit 5, at this moment, UE is by Service Request process response beep-page message and set up with after the security signaling of MME is connected, and MME distributes to UE by GUTI Reallocation process with the TAIList of a minimizing.After this, 11:28UE enters idle condition, and MME begins the detection of a new Paging number of taking turns, and promptly MME record UE after the 11:28 is in the accumulative total 1 hour under the idle condition, the number of times of Paging, thereby the process above repeating.
Embodiment three
When MME detected in continuous unit interval, the Paging of UE (not comprising repeated paging) frequency (or number of times) is during less than certain specific lower limit value, just the TAI List of increase UE in follow-up process.
For example, the continuous unit interval that MME is provided with is 1 hour, and the certain lower limit value of the Paging frequency (or number of times) of UE is 2.MME begins to add up the paging number of times to UE from 9:03 (9: 3 morning), and when 10:03, MME finds that the paging number of times of UE is had only 1 time.After this, for example during 11:23, UE is by Service Request process response beep-page message and set up when being connected with the security signaling of MME, and MME distributes to UE by GUTI Reallocation process with the TAI List of an increase.After this, MME begins the detection of a new Paging number of taking turns.
The method that MME increases TAI number among the TAI List has a variety of, and the present invention does not do any specific qualification, a feasible method, MME increase with the current TAI of UE nearest but be not comprised in TAI among the original T AI List.
Need to prove, in embodiment one and embodiment two, be when the paging number of times in the unit interval reaches a higher limit, network just utilizes the page response process of UE, be Service Request process, initiate GUTI Reallocation and distribute a less TAI List to UE.And at embodiment three, because the unit interval is when arriving, the paging number of times of UE does not reach a lower limit, at this moment, UE may not set up safe signaling with MME and be connected, at this moment, MME can't use GUTI Reallocation process to come to distribute a bigger TAI List to UE immediately, at this moment, MME does not directly carry out paging to UE, makes UE enter connection status.MME should distribute new TAI List in follow-up MM process, as, follow-up MM process is the TAU process, and reorientation does not take place in MME, then MME directly distributes this TAI List in the TAU process, if follow-up process is a Service Request process, then MME carries out the distribution of TAI List by GUTI Reallocation process.
Propose the discontinuous time of accumulative total based on embodiment two, the present invention proposes embodiment four:
The UE that detects idle condition as MME is in the accumulative total unit interval, and the Paging of UE (not comprising repeated paging) frequency (or number of times) is during less than certain specific lower limit value, just the TAI List of increase UE in follow-up process.
The accumulative total unit interval of supposing the idle condition UE that MME is provided with is 1 hour, and the certain lower limit value of the Paging frequency (or number of times) of UE is 2.9:03 (9: 3 morning) UE enters idle shape, and MME picks up counting, this UE of paging during 9:13, and UE enters connection status, and the free time of MME record UE this moment is 10 minutes, and the paging number of times is 1 time.9:23UE enters idle condition, 10:03UE enters connection status by Service Request, this moment the UE free time accumulative total of MME record be 50 (=10+40), the paging number of times is 1 time, enter idle condition at 10:23UE, when 10:33 UE free time of MME record add up to the accumulative total unit interval 60 (=10+40+20), and the paging number of times for once, the MME decision increases the TAI List of UE in follow-up process.Because of downlink data paging UE is arranged, at this moment, UE is by Service Request process response beep-page message and set up with after the security signaling of MME is connected during 10:43, and MME distributes to UE by GUTI Reallocation process with the TAI List of an increase.After this, 12:03UE enters idle condition, and MME begins the detection of a new Paging number of taking turns, and promptly MME record UE after the 12:03 is in the accumulative total 1 hour under the idle condition, the number of times of Paging, thereby the process above repeating.
Be similar to embodiment three, when the unit interval to out-of-date, the paging number of times of UE does not reach a lower limit, UE may not set up security signaling with MME and be connected, at this moment, can't use GUTI Reallocation process to come to distribute a bigger TAI List immediately, at this moment to UE, MME does not directly carry out paging to UE, makes UE enter connection status.MME should distribute new TAI List in follow-up MM process, as, follow-up MM process is the TAU process, and reorientation does not take place in MME, then MME directly distributes this TAI List in the TAU process, if follow-up process is a Service Request process, then MME then carries out the distribution of TAI List by GUTI Reallocation process.
The value that specific upper limit value or lower limit can only be got a class among the MME among the embodiment of front.The present invention proposes embodiment five:
The specific higher limit of the Paging frequency (or number of times) of the unit interval interior (the noncontinuity time of the UE of continuous time or accumulative total idle condition) that MME is set is divided into a plurality of class, for example, it is 3 that this class can be set, i.e. the 3rd specific higher limit of the Paging frequency (or number of times) in second specific higher limit＜unit interval of the Paging frequency (or number of times) in first specific higher limit＜unit interval of the Paging frequency (or number of times) in the unit interval.If after the unit interval finished, the paging number of times of UE reached different class, MME then reduces different sizes with the TAI List of UE in subsequent process.
For example, the continuous unit interval that MME is provided with is 1 hour, and three class of the specific higher limit of the Paging frequency (or number of times) of UE are 5,8,10.MME begins to add up the paging number of times to UE from 9:03 (9: 3 morning), after 36 minutes, be 9:39, MME has initiated the paging to this UE once more, and paging this time is the 5th paging in these 36 minutes, when 10:03, the paging number of times that counts UE is 9, in follow-up process, for example, UE is by Service Request process response beep-page message and set up with after the security signaling of MME is connected, and MME distributes to UE by GUTI Reallocation process with an a lot of TAI List of minimizing.After this, MME begins the detection of a new Paging number of taking turns, and promptly MME writes down in after this 1 hour, the number of times of Paging, thereby the process above repeating.
Be similar to embodiment three, when the unit interval arrives, UE may not set up security signaling with MME and be connected, at this moment, can't use GUTI Reallocation process to come to distribute a new little TAI List immediately to UE, at this moment, MME does not directly carry out paging to UE, makes UE enter connection status.MME should distribute new TAI List in follow-up MM process, as, follow-up MM process is the TAU process, and reorientation does not take place in MME, then MME directly distributes this TAI List in the TAU process, if follow-up process is a Service Request process, then MME then carries out the distribution of TAI List by GUTI Reallocation process.
Embodiment six:
The certain lower limit value of the Paging frequency (or number of times) of the unit interval interior (the noncontinuity time of the UE of continuous time or accumulative total idle condition) that MME is set is divided into a plurality of class, for example, it is 3 that this class can be set, i.e. the 3rd certain lower limit value of the Paging frequency (or number of times) in second certain lower limit value＜unit interval of the Paging frequency (or number of times) in first certain lower limit value＜unit interval of the Paging frequency (or number of times) in the unit interval.If after the unit interval finished, the paging number of times of UE reached different class, MME then increases different sizes with the TAI List of UE in subsequent process.
Be similar to embodiment three, when the unit interval arrives, UE may not set up security signaling with MME and be connected, at this moment, can't use GUTI Reallocation process to come to distribute a new big TAI List immediately to UE, at this moment, MME does not directly carry out paging to UE, makes UE enter connection status.MME should distribute new TAI List in follow-up MM process, as, follow-up MM process is the TAU process, and reorientation does not take place in MME, then MME directly distributes this TAI List in the TAU process, if follow-up process is a Service Request process, then MME then carries out the distribution of TAI List by GUTI Reallocation process.
Among each top embodiment, the continuous unit interval that MME is provided with, and the specific higher limit of Paging frequency (or number of times) of the UE in the continuous unit interval, perhaps the UE that is provided with of MME time of being in idle condition add up and, and add up and Paging frequency or the number of times of interior UE at this, can be Per UE, be that different UE has different specific higher limit or lower limit, also can be Per MME, be in the same MME, all UE have the identical unit interval, and specific higher limit of Paging frequency (or number of times) or the lower limit of the UE in the unit interval, but these values of different MME but can be different, or Per PLMN, promptly in PLMN, among all MME, all UE have the identical unit interval, and specific higher limit of Paging frequency (or number of times) or the lower limit of the UE in the unit interval, but the unit interval length of the UE under the different PLLMN can be different with specific higher limit or lower limit.
Need to prove, among superincumbent all embodiment, because MME is when paging UE, if in the regular hour, MME does not receive the response of UE, and then MME may initiate the repeated paging process to UE, notes, when MME carries out repeated paging to UE, not in the statistic processes of number of times with repeated paging as the paging number of times in the unit interval.
The inventive method is applicable to plurality of application scenes, be particularly useful for Machine Type communication (Machine TypeCommunication, MTC) business, such as using (Mobile OriginatedOnly) business for single upstream data, according to the present invention TAI List can be set and comprise more TAI, use (Infrequently Mobile Terminated) for non-frequent downlink data, also can be provided with according to the present invention and comprise more TAI among the TAI List.In a word, utilize the inventive method in paging cost and TAI List coverage, to obtain better balance.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the distribution method of a tracking zone list is characterized in that, this method comprises:
Detect the frequency of network side paging user equipment (UE), reduce the tracing area number that comprises in the tracking zone list during greater than first predetermined value, perhaps increase the tracing area number that comprises in the tracking zone list during less than second predetermined value in frequency in frequency.
2. method according to claim 1 is characterized in that, the frequency of described detection paging UE comprises:
In the continuous time, detect the number of times of paging UE, according to the frequency of this continuous time and this UE of this number of times calculating paging.
3. method according to claim 1 is characterized in that, the frequency of described detection paging UE comprises:
In UE is in time of idle condition, detect the number of times of paging UE, be in the time of idle condition and the frequency that this number of times calculates this UE of paging according to this.
4. method according to claim 1 is characterized in that, described first predetermined value comprises plural higher limit, describedly reduces the tracing area number that comprises in the tracking zone list during greater than first predetermined value in frequency and comprises:
Reduce different tracing area numbers during greater than different higher limit in frequency.
5. method according to claim 1 is characterized in that, described second predetermined value comprises plural lower limit, describedly increases the tracing area number that comprises in the tracking zone list during less than second predetermined value in frequency and comprises:
Increase different tracing area numbers during less than different lower limit in frequency.
6. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that described tracking zone list is TAI List, described tracing area is TAI;
For each UE is provided with predetermined value respectively, all UE that perhaps are respectively each MME subordinate are provided with predetermined value, perhaps for all UE of each public land mobile network PLMN subordinate predetermined value are set.
7. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that the tracing area number that comprises in the described minimizing tracking zone list comprises:
To from this tracking zone list, delete apart from this UE current service tracing area tracing area farthest.
8. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that the tracing area number that comprises in the described increase tracking zone list comprises:
The nearest tracing area of this UE current service tracing area of all the tracing area middle distances in current tracking zone list is not added into this tracking zone list.
9. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that described tracking zone list is TAI List, described tracing area is TAI;
Network side heavily distributes GUTI Reallocation process that the TAIList that distributes is issued UE by global unique temporary identity.
10. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that described tracking zone list is TAI List, described tracing area is TAI;
If UE is connected with the current signaling of not setting up safety of MME, MME issues UE in follow-up mobile management MM process with the TAI List that distributes.
11. method according to claim 10 is characterized in that, described MME issues UE in follow-up MM process with the TAI List that distributes and comprises:
Follow-up MM process is the TAU process, and reorientation does not take place MME, and MME issues UE with the TAI List that distributes in this TAU process;
Perhaps, follow-up MM process is a service request Service Request process, and MME issues UE by the GUTIReallocation process with the TAI List that distributes.
12. method according to claim 1 is characterized in that, the type of service of UE is a Machine Type communication Machine Type Communication business.
13. method according to claim 12, it is characterized in that described Machine Type interchange business is that single upstream data is used the professional or non-frequent downlink data application Infrequently Mobile Terminated business of Mobile Originated Only.
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Application publication date: 20110810 |