CN106535142A - Positioning method in LTE trunking system - Google Patents
Positioning method in LTE trunking system Download PDFInfo
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- CN106535142A CN106535142A CN201510573686.8A CN201510573686A CN106535142A CN 106535142 A CN106535142 A CN 106535142A CN 201510573686 A CN201510573686 A CN 201510573686A CN 106535142 A CN106535142 A CN 106535142A
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- mac
- positioning
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- enb
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Classifications
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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
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The invention provides a positioning method in a LTE trunking system. The positioning method comprises the following steps: an eNB sends a trunking paging message to notify UE to report positioning information; the trunking paging message carries a positioning parameter; after receiving the trunking paging message, the UE reports the positioning information in an MAC CE manner; the eNB receives the positioning information reported by the UE, and performs feedback according to a CRC result; and the UE receives the feedback and performs corresponding processing. By means of the positioning method provided by the invention, collecting and uploading of the positioning information are carried out through an MAC layer; therefore, the system load is greatly reduced; in addition, periodic positioning information taking of a scheduling platform can be initiated according to requirements; and, a command also can be sent, so that a terminal reports the positioning information periodically and for one time.
Description
Technical field
The present invention relates to the localization method in wireless communication system, more particularly to a kind of LTE group systems.
Background technology
Trunked communication system be develop to meet industry user's command scheduling demand, towards specific industry
Using professional wireless communication system, in system, a large amount of wireless users share a small amount of wireless channel, to command tune
Spend for main body application, be a kind of multi-user, dynamical wireless communication system.
With mobile Internet develop rapidly and global radio city Large scale construction, it is broadband into
For the development trend of whole wireless communication system.Correspondingly, trunked communication system technically also will be to system
IPization, business variation, data broadband, the direction of many modellings of terminal are developed.Long Term Evolution (Long Term
Evolution, LTE) system adopt OFDM (Orthogonal Frequency Division
Multiplexing, OFDM) and multiple-input, multiple-output (Multiple Input and Multiple Output, MIMO)
Standard of the technology as wireless network evolution, with channel capacity it is big, the availability of frequency spectrum is high, capacity of resisting disturbance
Strong the advantages of, broadband trunking communication network can be met in many need such as capacity, speed and spectrum efficiency
Ask.The characteristics of just because of the two-forty of LTE system, low latency, the group system based on LTE system
Increasingly cause extensive concern.
Cluster positioning service is widely used in the industries such as public security, traffic, medical treatment, maritime affairs, logistics, taxi use
Family, the system manager of these users are often wished when colony dispatching is carried out to its affiliated terminal use
Hope that what one is particularly good at first knows these terminal use's locations, then reselection is in some regions based on this
Terminal use be scheduled.In order to dispatch, safety and other positioning services demand, when dispatching desk needs
Carve and understand multiple geographical location information collected residing for group users, and only in Ge Ji groups, may
There are up to a hundred in connected state and the cluster user of Idle state.For so huge user's system, it is desirable to
All cluster users are allowed all to set up RRC connections, the moment will be led by 3 Signalling exchange of layer, last time information
Cause signaling storm, significantly heavy system load；In extreme circumstances, lose that message, system loading are overweight to be caused
Collapse it is very common.Therefore, in group system, how balance system load is reported with location information is one
The individual problem for needing to solve.
The content of the invention
For the problems referred to above, the present invention proposes the localization method in a kind of LTE system, including：
ENB signalling of bouquet beep-page message notifies that UE reporting orientation informations, the clustering paging message carry fixed
Position parameter；
After the UE receives the clustering paging message, with MAC CE mode reporting orientation informations；
The eNB receives the location information that the UE is reported, and is fed back according to CRC results；
The UE receives the feedback and is processed accordingly.
Further, the positional parameter includes：Positioning back-off parameter and locating reporting cycle.
Further, also include：If the locating reporting cycle is designated as single and reports, the positioning
Back-off parameter value is 1024 subframes；Otherwise, the locating reporting cycle value and the positioning rollback
Parameter value is equal.
Further, it is described to be included with MAC CE mode reporting orientation informations：
UE triggerings in connected state report corresponding UE Identity MAC CE and Positioning
MAC CE；
UE in Idle state first initiates to compete Stochastic accessing, then reports corresponding UE in Msg3
Identity MAC CE and Positioning MAC CE.
Further, also include：It is described initiate competition Stochastic accessing before first random back for a period of time；Institute
The time span for stating random back is to equally distributed random value between the positioning back-off parameter value 0.
Further, the UE Identity MAC CE for reporting in the Msg3 are 40 bits by length
International mobile terminal identification IMSI after cutting or International Mobile Station Equipment Identification IMEI compositions, the sanction
Cut including：Wherein Mobile Country Code MCC MNC and Mobile Network Code MCC is deleted by the IMSI, or described
Front 6 bit-type approval code TAC is deleted by IMEI.
Further, also include：The eNB is to being in after the UE feeding back ACKs of Idle state, subsequent
Msg4 in issue corresponding UE Identity MAC CE.
Further, the UE Identity MAC CE for issuing are multiplexed the UE that LCID is 11100
Contention Resolution Identity MAC CE。
Further, the UE receives the feedback and carries out corresponding process and includes：
If it is described receive be fed back to NACK, retransmit last data bag；
If it is described receive be fed back to ACK, the UE in connected state then terminates this and reports；
If it is described receive be fed back to ACK, the UE in Idle state then parses what is issued in Msg4
UE Identity MAC CE, if consistent with itself UE ID terminate this and report, otherwise again with MAC
Location information and UE ID that CE modes are reported.
Further, be additionally included in it is described terminate this report after carried out next time according to the positional parameter
Report.
Further, also include：Described when being fed back to ACK, the eNB is also parsed on the UE
The location information of report simultaneously reports location-server.
Further, the UE includes：Single UE, multiple UE, one group of cluster UE or multigroup cluster
UE。
The present invention carries out the collection and upload of location information by MAC layer, substantially reduces system loading,
Dispatching desk cycle location information additionally can be initiated as needed to ask for, also can transmitting order to lower levels, allow terminal to enter
Line period and disposable reporting orientation information.
Description of the drawings
Fig. 1 is the process chart of localization method proposed by the present invention；
Fig. 2 is Values of LCID for UL-SCH；
Fig. 3 is UE Identity MAC CE form schematic diagrams；
Fig. 4 is Positioning MAC CE form schematic diagrams；
Fig. 5 is Values of LCID for DL-SCH；
Fig. 6 is UE Contention Resolution Identity MAC CE form schematic diagrams.
Specific embodiment
For making purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention；Not
In the case of conflict, the feature in embodiment and embodiment in the application can be mutually combined.
One embodiment of the present of invention proposes the localization method in a kind of LTE system, refer to Fig. 1, including：
ENB signalling of bouquet beep-page message notifies that UE reporting orientation informations, the clustering paging message carry positioning ginseng
Number；After the UE receives the clustering paging message, with MAC CE mode reporting orientation informations；Institute
State eNB and receive the location information that the UE is reported, fed back according to CRC results；The UE connects
Receive the feedback and processed accordingly.
In one alternate embodiment, positional parameter includes positioning back-off parameter and locating reporting cycle.
In one alternate embodiment, also include：If the locating reporting cycle is designated as single and reports,
Then the positioning back-off parameter value is 1024 subframes；Otherwise, the locating reporting cycle value and institute
State positioning back-off parameter value equal.
In one alternate embodiment, it is described to be included with MAC CE mode reporting orientation informations：In even
The UE triggerings for connecing state report corresponding UE Identity MAC CE and Positioning MAC CE；It is in
The UE of Idle state first initiates to compete Stochastic accessing, then reports corresponding UE Identity in Msg3
MAC CE and Positioning MAC CE.
In one alternate embodiment, also include：The first random back one before the initiation competition Stochastic accessing
The section time；The time span of the random back is to be uniformly distributed between back-off parameter value to described positioning 0
Random value.
In one alternate embodiment, the UE Identity MAC CE for reporting in the Msg3 by length are
International mobile terminal identification IMSI after the cutting of 40 bits or International Mobile Station Equipment Identification IMEI compositions,
The cutting includes：Wherein Mobile Country Code MCC MNC and Mobile Network Code MCC is deleted by the IMSI,
Or front 6 bit-type approval code TAC is deleted by the IMEI.
In one alternate embodiment, also include：The eNB is to the UE feeding back ACKs in Idle state
Afterwards, corresponding UE Identity MAC CE are issued in subsequent Msg4.
In one alternate embodiment, the UE Identity MAC CE multiplexing LCID for issuing are 11100
UE Contention Resolution Identity MAC CE.
In one alternate embodiment, the UE receives the feedback and carries out corresponding process and includes：
If it is described receive be fed back to NACK, retransmit last data bag；
If it is described receive be fed back to ACK, the UE in connected state then terminates this and reports；
If it is described receive be fed back to ACK, the UE in Idle state then parses what is issued in Msg4
UE Identity MAC CE, if consistent with itself UE ID terminate this and report, otherwise again with MAC
Location information and UE ID that CE modes are reported.
In one alternate embodiment, it is additionally included in described end after this reports according to the positional parameter
Reported next time.
In one alternate embodiment, also include：Described when being fed back to ACK, the eNB is also parsed
Location information that the UE is reported simultaneously reports location-server.
In one alternate embodiment, the UE includes：Single UE, multiple UE, one group of cluster UE
Or multigroup cluster UE.
Embodiment
Step 1：ENB notifies cluster UE reporting orientation informations by signalling of bouquet beep-page message
ENB by signalling of bouquet beep-page message (TrunkingPaging), triggering list UE or many UE,
Group or multigroup cluster UE reporting orientation informations.The form of clustering paging message is as follows：
Positioning back-off parameter positioningBackoff and locating reporting period p ositioning are carried wherein
Report Period.For sf0, positioningReportPeriod represents that single is reported, be that sf1024 is represented
The report cycle is 1024 subframes, by that analogy.When positioningReportPeriod is sf0,
PositioningBackoff values sf1024；Otherwise positioningBackoff=positioningReportPeriod.
Step 2：After cluster UE receives clustering paging message TrunkingPaging, then by MAC CE
Form report the location information of the UE：
For in connected state cluster UE, then the UE triggerings report corresponding UE Identity MAC CE
With location information (Positioning MAC CE)；
For Idle state cluster UE is in, then the UE uniformly divides between positioningBackoff 0
The random value of cloth selects a send opportunity as the random back time, initiates competition Stochastic accessing, then
UE Identity MAC CE and Positioning MAC CE are reported in Msg3.
Wherein, Positioning MAC CE, the design of UE Identity MAC CE and its LCID please be joined
Examine Fig. 2.The LCID of UE Identity MAC CE is 10111, and form is as shown in figure 3, by length be
40bit clipped rear IMSI (International Mobile Subscriber Identification Number,
International mobile terminal identification) or IMEI (International Mobile Equipment Identity, it is international
Mobile device is identified) composition.UE reports UE Identity MAC during triggering is reported, in MSG3
CE.Preferably, IMSI can just 6, face MNC (Mobile Country Code MCC) and MCC (Mobile Network Code)
Delete, IMEI can be by front 6 TAC (deletion of Type Approval number).Positioning MAC CE's
LCID is 11000, and form is as shown in Figure 4.
Step 3：ENB is fed back to cluster UE according to CRC results：
For connected state cluster UE, feeding back ACK or NACK；
For Idle state cluster UE, feeding back ACK or NACK；If feeding back ACK, subsequent
Msg4 issues corresponding UE Identity MAC CE；
Additionally, if that feedback is ACK, eNB MAC parse Positioning MAC CE and UE
After Identity MAC CE, and location-server is reported by by location information by specified circuit.
The UE Identity MAC CE multiplexing LCID that wherein Msg4 is issued are 11100 UE
Contention Resolution Identity MAC CE, refer to Fig. 5 and Fig. 6.Due to UE Contention
Resolution Identity MAC CE have 48 bits, and UE Identity MAC CE are multiplexed its front 40 bit,
Remaining 8 bit is used as filling (padding).
Step 4：Cluster UE is processed accordingly according to its state：
For connected state cluster UE：If receiving ACK, terminate this and report；If receiving NACK,
Previous bag data is retransmitted then.
For Idle state cluster UE：
If receiving ACK, the UE Identity MAC CE of Msg4 are parsed, and by its ID with oneself
It is compared：If as consistent, then terminate this and report, and in positioning Report Period (no
For being reported after the 0) time again next time；If it is inconsistent, going to Idle state cluster in step 2
The process of UE, i.e., 0 to equally distributed random value between positioningBackoff as random back
Time, a send opportunity is reselected, initiate competition Stochastic accessing.
If receiving NACK, previous bag data is retransmitted.
In the various embodiments described above, clustering paging message is strengthened, eNB passes through clustering paging message
Triggering list UE or many UE, one or more groups of cluster UE reporting orientation informations；Connected state cluster UE passes through
The mode of MAC CE reports its location information and UE ID；Idle state cluster UE is random by initiating competition
Access, report its location information and UE ID in Msg3 in the way of MAC CE；And in conflict
Reporting for its location information and UE ID is ensured by fallback mechanism under mode.Above-mentioned each scheme only passes through
MAC layer can carry out the collection and upload of location information, substantially reduce system loading, while can be with root
According to needs, realize that colony terminal enters line period and disposable reporting orientation information.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of said method embodiment can
Complete with by the related hardware of programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit
In storage media, the program upon execution, performs the step of including said method embodiment；And aforesaid storage
Medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Above example is only illustrating technical scheme, rather than which is limited
System；Although being described in detail to the present invention with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：Which still can be modified to the technical scheme described in foregoing embodiments, or to which
Middle some technical characteristics carry out equivalent；And these modifications or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. the localization method in a kind of LTE group systems, it is characterised in that include：
ENB signalling of bouquet beep-page message notifies that UE reporting orientation informations, the clustering paging message carry fixed
Position parameter；
After the UE receives the clustering paging message, with MAC CE mode reporting orientation informations；
The eNB receives the location information that the UE is reported, and is fed back according to CRC results；
The UE receives the feedback and is processed accordingly.
2. method according to claim 1, it is characterised in that the positional parameter includes：Positioning
Back-off parameter and locating reporting cycle.
3. method according to claim 2, it is characterised in that also include：If in the positioning
The report cycle is designated as single and reports, then the positioning back-off parameter value is 1024 subframes；Otherwise, institute
State locating reporting cycle value equal with the positioning back-off parameter value.
4. the method according to claims 1 to 3 any one, it is characterised in that described with MAC CE
Mode reporting orientation information includes：
UE triggerings in connected state report corresponding UE Identity MAC CE and Positioning
MAC CE；
UE in Idle state first initiates to compete Stochastic accessing, then reports corresponding UE in Msg3
Identity MAC CE and Positioning MAC CE.
5. method according to claim 4, it is characterised in that also include：Competition is initiated described
Before Stochastic accessing, first random back is for a period of time；The time span of the random back is 0 to the positioning
Equally distributed random value between back-off parameter value.
6. method according to claim 4, it is characterised in that the UE reported in the Msg3
Identity MAC CE are by international mobile terminal identification IMSI after the cutting that length is 40 bits or state
Border mobile device mark IMEI compositions, the cutting include：The IMSI will wherein Mobile Country Code MCC MNC
Delete with Mobile Network Code MCC, or front 6 bit-type approval code TAC is deleted by the IMEI.
7. the method according to claim 1 or 4, it is characterised in that also include：Described eNB pair
After the UE feeding back ACKs of Idle state, corresponding UE Identity MAC are issued in subsequent Msg4
CE。
8. method according to claim 7, it is characterised in that the UE Identity MAC for issuing
CE multiplexing LCID are 11100 UE Contention Resolution Identity MAC CE.
9. method according to claim 7, it is characterised in that the UE receives the feedback simultaneously
Carrying out corresponding process includes：
If it is described receive be fed back to NACK, retransmit last data bag；
If it is described receive be fed back to ACK, the UE in connected state then terminates this and reports；
If it is described receive be fed back to ACK, the UE in Idle state then parses what is issued in Msg4
UE Identity MAC CE, if consistent with itself UE ID terminate this and report, otherwise again with MAC
Location information and UE ID that CE modes are reported.
10. method according to claim 9, it is characterised in that be additionally included in described end on this
Reported according to the positional parameter next time after report.
11. methods according to claim 1, it is characterised in that also include：It is described to be fed back to ACK
When, the eNB also parses the location information that the UE reports and reports location-server.
12. methods according to claim 1, it is characterised in that the UE includes：Single UE,
Multiple UE, one group of cluster UE or multigroup cluster UE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573686.8A CN106535142A (en) | 2015-09-10 | 2015-09-10 | Positioning method in LTE trunking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573686.8A CN106535142A (en) | 2015-09-10 | 2015-09-10 | Positioning method in LTE trunking system |
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| CN106535142A true CN106535142A (en) | 2017-03-22 |
Family
ID=58346264
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| CN201510573686.8A Withdrawn CN106535142A (en) | 2015-09-10 | 2015-09-10 | Positioning method in LTE trunking system |
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