CN1882161A - Method for carrying out real-time positioning on group-calling/multicast mobile station - Google Patents
Method for carrying out real-time positioning on group-calling/multicast mobile station Download PDFInfo
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- CN1882161A CN1882161A CNA200510075344XA CN200510075344A CN1882161A CN 1882161 A CN1882161 A CN 1882161A CN A200510075344X A CNA200510075344X A CN A200510075344XA CN 200510075344 A CN200510075344 A CN 200510075344A CN 1882161 A CN1882161 A CN 1882161A
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- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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Abstract
The invention relates to a method for real-time positioning the multi-call/multicast mobile station, used in the group communication system based on public network, wherein it comprises: the network divides the SDCCH channel into several SDCCH sub channels; distributing said SDCCH sub channels for the multi-call/multicast to send the descriptions of distributed SDCCH sub channels to all mobile stations of multi-call/multicast; each mobile station confirms the report position in SDCCH sub channel, while the report position periodically reports the access burst impulse sequence AB that carrying itself position information; the network receives the AB at the distributed SDCCH sub channel, and based on the AB position and the mobile station position carried with AB, to position the mobile station. With said invention, in the multi-call/multicast process of group communication system, the network can position the group mobile station at any time.
Description
Technical field
The present invention relates to communication means based on the trunked communication system of public communication network, relate in particular to a kind of in the group-call/multicast process of trunked communication system, the method that group-calling/multicast mobile station is located in real time.
Background technology
Trunked communication system is a kind of less expensive of growing up in recent years, command dispatching and communication system more flexibly, be widely used in units such as government bodies, energy traffic, airport harbour, industrial and mining enterprises, fire-fighting police, water conservancy and military affairs, to satisfy the needs of constituent parts intercommunication.
At first, trunked communication system adopts the mode of cluster private network to build networking.But because each group independently builds the cluster private network, therefore technology between group and system examination disunity form the construction situation of doing things in his own way easily, cause drawbacks such as frequency utilization inefficiency, network construction cost and network operation expense height.Recently, along with trunking communicating technology is developed by simulation-to-digital, the trunking communication networking presents by the separate cluster dedicated network builds the trend to development to cluster public network Construction Party.Especially, because global system for mobile communications (GSM) technical system has developed fairly perfectly, have public network basis widely in the whole nation and even worldwide, therefore, development is based on the extremely industry concern of trunked communication system of gsm communication network.
At present, the international standard GSM-R that a cover is used for the railway mobile communication has been made in Europe, it as service bearer, can finish basic group calling (VGCS)/multicast cluster communication services such as (VBS) with the gsm communication network, can realize basic voice dispatching call function.Described group calling is the calling that a plurality of travelling carriages participate in simultaneously, and wherein speaker's travelling carriage can receive and transmission information, and hearer's travelling carriage can only receive information, and speaker's travelling carriage can change; Described multicast is a kind of special group calling, specially can not change at its speaker's travelling carriage.
But,, the requirement of business also is very different because the customer group of public network and special-purpose cluster network is different.The GSM communication network in the past mainly towards the public, related service is fit to public service, also can't satisfy for some specific (special) requirements of trunked communication system.
In trunked communication system, need locate in real time the travelling carriage in the group-call/multicast (MS), promptly network side need be known the real-time cell-level positional information of specifying each travelling carriage in the group-call/multicast.For example know how far group-calling/multicast mobile station has in which sub-district and apart from the base station of this sub-district; Concrete location parameter comprise the cell ID at travelling carriage place and in this sub-district with the distance of base station.
Yet, in existing gsm system, can only single travelling carriage being positioned, the mode of location is: travelling carriage is by taking the uplink resource reporting position information, and network side positions travelling carriage according to the positional information that reports.Because in group-call/multicast, be to one group of mobile position estimation, if utilize existing localization method then can take a large amount of uplink resources, therefore existing trunked communication system based on GSM also can't be realized group-calling/multicast mobile station is located in real time.
Summary of the invention
In view of this, main purpose of the present invention provides a kind of method that group-calling/multicast mobile station is located in real time, make trunked communication system based on public network in the group-call/multicast process, network side can position travelling carriage in the group of specifying group-call/multicast at any time, is convenient to the command scheduling of cluster communication system.
To achieve these goals, main technical schemes of the present invention is as follows:
A kind of method that group-calling/multicast mobile station is located in real time is applicable to the trunked communication system based on public network, is a plurality of SDCCH subchannels with the SDCCH channel distribution; For group-call/multicast distributes the SDCCH subchannel divided, the descriptor of the SDCCH subchannel that distributed is handed down to all travelling carriages in this group-call/multicast; Described each travelling carriage is known the SDCCH subchannel that is distributed according to the descriptor of described SDCCH subchannel, determine to report the AB that carries self-position information at this from the position that reports access burst pulse train AB in distribution in the SDCCH subchannel with reporting positional cycle; Network side receives AB on the SDCCH subchannel that distributes for described group-call/multicast, the location of mobile station information of carrying according to position and this AB of AB positions this travelling carriage.
Preferably, the concrete grammar of described division SDCCH subchannel is:
Described SDCCH channel is divided in the dividing mode that N 2 * 51 multi-frames take 1 burst sequence B URST according to each SDCCH subchannel, wherein N is a positive integer.
Describedly for group-call/multicast distributes the concrete grammar of the SDCCH subchannel divided be: group-call/multicast is corresponding to distribute one or more SDCCH subchannels.
Described travelling carriage is determined from reporting the method for AB position to be in the SDCCH subchannel in distribution:
Judge whether the sub-district frame number in the described SDCCH subchannel meets following formula:
((FN)Mode(Kmax_id×N×102))Integer(N×102)＝Num_id
Wherein FN is the sub-district frame number, and Kmax_id is a maximum travelling carriage number in the group of the network side described group-call/multicast that is handed down to travelling carriage, and Num_id is the numbering of this travelling carriage in described group-call/multicast; Described Num_id is pre-configured to be stored in this travelling carriage; Pre-configured being stored in the travelling carriage or by network side of described N is handed down to travelling carriage;
If the sub-district frame number meets above-mentioned formula, judge that then the BURST that this sub-district frame number characterizes is this travelling carriage reports AB in described SDCCH subchannel position.
The length of described AB is 8 bits, and the positional information of the travelling carriage that carries of AB is: the value that Num_id obtains after to 256 deliverys.
Described network side according to the location of mobile station information that position and this AB of reception AB carries to the method that this travelling carriage positions is:
According to position that receives AB and the positional information that this AB carries this AB is carried out verification, after the verification succeeds, determine to receive the cell ID of this AB and the distance that reports travelling carriage and this cell base station of this AB by the position that receives AB, finish location this travelling carriage.
Described method of calibration is:
Calculate the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256), wherein FN is by being received AB corresponding district frame number; Whether the positional information of carrying of judging the AB received equate with the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256), if equate, and verification succeeds then, otherwise verification is failed.
Preferably, described descriptor with the SDCCH subchannel that the distributed concrete grammar that is handed down to all travelling carriages in the described group-call/multicast is:
Network side periodically sends the sign of this group-call/multicast and the descriptor of the SDCCH subchannel that distributes for this group-call/multicast on the notification channel of the related sub-district of described group-call/multicast, travelling carriage in the described sub-district obtains this group-call/multicast sign and SDCCH subchannel descriptor by monitoring this notification channel, and judge by this group-call/multicast sign whether this travelling carriage is subordinated to this group-call/multicast, be then to accept described SDCCH subchannel descriptor; Otherwise, do not deal with.
Preferably, described descriptor with the SDCCH subchannel that the distributed concrete grammar that is handed down to all travelling carriages in the described group-call/multicast is:
Network side periodically sends the sign of this group-call/multicast and the descriptor of the SDCCH subchannel that distributes for this group-call/multicast on the descending Fast Associated Control Channel of the related sub-district of described group-call/multicast, travelling carriage in the described sub-district is by monitoring the descriptor that this descending Fast Associated Control Channel obtains this group-call/multicast sign and SDCCH subchannel, judging by this group-call/multicast sign whether this travelling carriage is subordinated to this group-call/multicast, is then to accept described SDCCH subchannel descriptor; Otherwise, do not deal with.
Preferably, described public network is the mobile communication network based on global system for mobile communications.
Described network side mainly comprises base station sub-system BSS, moving exchanging center MSC, group-call/multicast control register GCR and dispatching patcher; Described network side is that group-call/multicast distributes the SDCCH subchannel divided, and the concrete steps that the descriptor of the SDCCH subchannel that distributed are handed down to all travelling carriages in this group-call/multicast are:
A, dispatching patcher be maximum travelling carriage number in MSC sends the group of the sign that needs the group-call/multicast of location in real time and this group-call/multicast;
B, MSC send described group-call/multicast sign to GCR;
The corresponding relation that group-calling/multicast mobile station affiliated subdistrict tabulation that the group-call/multicast sign inquiry that c, GCR basis is received sets in advance and group-call/multicast identify; Obtain this group-call/multicast sign corresponding district tabulation; Return this cell list information to MSC;
The BSS that the cell list information inquiry that d, MSC basis is received sets in advance and the corresponding relation of cell ID, obtain the related BSS of cell list and this BSS institute respective cell sign, and maximum travelling carriage number and this BSS corresponding district identify in this BSS sends described group-call/multicast sign, group;
After e, BSS receive maximum travelling carriage number in described group-call/multicast sign, the group, this BSS corresponding district sign, distribute the SDCCH subchannel of being divided for this group-call/multicast, and in each sub-district of described cell ID appointment, issue carry distribute the notification message of the descriptor of SDCCH subchannel, and also further carry maximum travelling carriage number in described group-call/multicast sign and the group in this notification message.
Described network side receives AB on the SDCCH subchannel that distributes for described group-call/multicast, the location of mobile station information of carrying according to position and this AB of AB to the concrete steps that this travelling carriage positions is:
A, the BSS AB that receiving mobile reports on the SDCCH subchannel that distributes for described group-call/multicast, utilize the interior maximum travelling carriage number of group of this group-call/multicast, the positional information that carry this AB the position of the descriptor of this SDCCH subchannel and the AB correspondence that receives is carried out verification, if verification succeeds then utilize this AB determine to receive the sign of the cell base station of this AB, and the distance that reports travelling carriage and this cell base station of this AB, sign with described group-call/multicast, numbering in the group of this travelling carriage, the sign of this cell base station, and the distance of this travelling carriage and this cell base station is reported to MSC, execution in step B; If verification is failed then this AB is not handled;
B, MSC be numbering, the sign of described cell base station and the distance of this travelling carriage and this cell base station in dispatching patcher is transmitted the group of described group-call/multicast sign, described travelling carriage;
C, dispatching patcher according to described group-call/multicast identify, the distance of the sign of numbering, described cell base station and this travelling carriage and this cell base station positions the travelling carriage of this group-call/multicast in the group of described travelling carriage.
The present invention has following beneficial effect:
1, because method of the present invention is a plurality of SDCCH subchannels with the SDCCH channel distribution of global system for mobile communications, distribute to a plurality of group-call/multicasts, the travelling carriage of group-call/multicast reports self information at the SDCCH subchannel that is distributed in real time by the AB cycle, network side positions travelling carriage according to the AB that is reported, therefore can realize real-time location, be convenient to the command dispatch communication of cluster communication system when carrying out group-call/multicast group-calling/multicast mobile station.
2, because the travelling carriage among the present invention utilizes access burst pulse train (AB, Access Burst) reporting information, and a used time of AB is very short, generally has only 0.577ms, therefore the time of hearer's travelling carriage reporting information time institute leaving group-calling/multicast channel is very short, report speed is fast, and the proper communication of travelling carriage is unaffected, to the not influence of basic service of group-call/multicast.
3, the present invention does not take the up link of group-call/multicast channel, to communicate by letter the not influence of travelling carriage with network side, avoids the link circuit resource waste.
4, because the present invention determines this travelling carriage affiliated subdistrict and this travelling carriage distance to this cell base station according to the AB of travelling carriage real-time report, therefore can realize the cell-level of group-calling/multicast mobile station is located in real time, how far can know promptly that travelling carriage in this group-call/multicast is current has in which sub-district and apart from the base station of this sub-district.
5, because BSS can be by notification channel and the FACCH channel message of issuing a notice, and the travelling carriage that is in idle condition obtains notification message by monitoring notification channel, the travelling carriage that is under the call model can obtain notification message by monitoring the FACCH channel, therefore the present invention both can position travelling carriage in the group under the idle condition, can the travelling carriage that be under the call model be positioned again.
Description of drawings
Fig. 1 is the schematic diagram of SDCCH channel institute mapping physical channel in the gsm system;
The flow chart that Fig. 2 locatees the group calling travelling carriage in real time for embodiment of the present invention.
Embodiment
Further specify implementation method of the present invention below in conjunction with the drawings and specific embodiments.
The present invention is applicable to the group-call/multicast process based on the wireless trunking communication system of public network, and the embodiment of this paper is that the present invention will be described for example with the wireless trunking communication system based on the GSM public network.
In the present embodiment, (SDCCH) is appointed as the Dedicated Control Channel that is used for the group-calling/multicast mobile station reporting position information with the Separate Dedicated Control Channel in the gsm communication system, and all interior travelling carriages of group-call/multicast are shared a SDCCH channel.Because the SDCCH channel do not need to set up in advance link, the travelling carriage AB that only need fix a point to report, compole is short when used, generally has only several ms, therefore can not influence the proper communication of hearer's travelling carriage.
In the gsm communication system, SDCCH is special-purpose signaling channel, and the physical channel that SDCCH shone upon is a plurality of time slots in the multi-frame.The present invention with a multi-frame as a unit physical channel, this multi-frame can be different types, in the present embodiment with 2 * 51 multi-frames as a unit physical channel, 102 frames are arranged in each 2 * 51 multi-frame, in each 2 * 51 multi-frame, be mapped with 8 SDCCH, be mapped among each SDCCH on 12 time slots, correspondence takies 12 burst sequences (BURST) respectively.
Fig. 1 is the schematic diagram of SDCCH channel institute mapping physical channel in the gsm system.As shown in Figure 1,2 * 51 multi-frame sequences are launched in the mode of circulation, comprise 102 frames in each 2 * 51 multi-frame, for example frame number is for all comprising 102 frames in 2 * 51 multi-frames of " 0 " and " N-1 ", 12 BURST in SDCCH channel occupancy 2 * 51 multi-frame.
May there be a plurality of group-call/multicasts simultaneously in the communication system, do not disturb mutually when making different group-calling/multicast mobile stations utilize SDCCH channel reporting orientation information, need the SDCCH channel of existing gsm system further be segmented, be divided into different SDCCH subchannels, distribute to different group-call/multicasts.The concrete division of subchannel can be carried out according to the requirement of operator.
Below be the concrete grammar of dividing the SDCCH subchannel for group-call/multicast:
According to the quantity variance of the shared BURST of SDCCH subchannel, can carry out polytype division to the SDCCH channel:
If each SDCCH subchannel takies 12 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 1 subchannel;
If each SDCCH subchannel takies 6 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 2 subchannels;
If each SDCCH subchannel takies 4 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 3 subchannels;
If each SDCCH subchannel takies 3 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 4 subchannels;
If each SDCCH subchannel takies 2 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 6 subchannels;
If each SDCCH subchannel takies 1 BURST at 2 * 51 multi-frames, then according to dividing for 2 * 51 multiframe periods, a SDCCH channel can be divided into 12 subchannels;
If each SDCCH subchannel takies 1 BURST at two 2 * 51 multi-frames, then according to dividing two 2 * 51 multiframe periods, a SDCCH channel can be divided into 24 subchannels;
The rest may be inferred
If each SDCCH subchannel takies 1 BURST at N 2 * 51 multi-frames, then according to dividing N 2 * 51 multiframe periods, a SDCCH channel can be divided into N * 12 subchannel; N * 12 subchannel is expressed as SDCCH_subN (k) respectively, and k is 0,1,2 ...., k, k+1 ..., N * 12-1.
In the specific implementation process, adopting above-mentioned which kind of type to divide SDCCH need be according to the group quantity decision of group-call/multicast business among the GSM.Adopt each SDCCH subchannel to take the subchannel method of salary distribution of 1 BURST at N 2 * 51 multi-frames in the present embodiment, wherein N is a positive integer, and the number of sub-channels that each SDCCH of this mode is divided into is many, can support a plurality of groups.For example: if to divide the SDCCH subchannel 2 * 2 * 51 multiframe periods (about 941 milliseconds), then a SDCCH channel can be divided into 24 SDCCH subchannels, can support 24 groups.
The above is the concrete grammar that group-calling/multicast mobile station is divided the SDCCH subchannel for BSS, after dividing well, the SDCCH subchannel information of being divided is provided with respectively and is stored in BSS system and the travelling carriage, and for example the SDCCH subchannel information of present embodiment is SDCCH subN (k), k is 0,1,2 ...., k, k+1 ..., N * 12-1.
Because for real-time location, group calling location in real time is identical with the scheme of the real-time location of multicast, so only is that the present invention will be described for example with the group calling in following examples.
For cell information is provided, the zone of action information of the group calling travelling carriage of supporting is set in the group calling control register (GCR) of network side, the zone of action is the roughly scope of activities of these all travelling carriages of group calling, zone of action information can be the tabulation of group calling travelling carriage institute home cell, also can be the tabulation of lane place, be index with group calling sign (GID) wherein.
The flow chart that Fig. 2 locatees the group calling travelling carriage in real time for embodiment of the present invention.As shown in Figure 2, this flow process comprises:
The dispatching patcher of step 201, network side sends group calling location of mobile station request solicitation message VGCS_Subscrber_Position_Req (GID to mobile switching centre (MSC), Kmax_id), comprise the GID of the group calling that need locate in real time and the interior maximum travelling carriage number (Kmax_id) of group of this group calling in this message.
After step 203, GCR receive VGCS_Area_Req (GID) message, inquire about the cell list that sets in advance according to the GID that wherein carries, find out the roughly scope of activities information of travelling carriage in this group calling, this scope of activities information is the list information (Cell list) of travelling carriage affiliated subdistrict in this group calling group, and this Cell list has reflected the zone of group calling; Return group calling location of mobile station results messages VGCS_Area_Result (Cell list) to MSC afterwards, comprise Cell list in this message.
After step 204, MSC received VGCS_Area_Result (Cell list) message, the sub-district of the Cell liist inquiry of carrying according to this message self configuration and the corresponding relation of BSS were known all BSS that described group call region is related; Send group calling location of mobile station query messages VGCS_Subscrber_Position_Req (GID to each related BSS of this group call region, Cell_list_bss, Kmax_id), comprise in this message: group calling GID, this group call region cell list information Cell_list_bss in this BSS, maximum travelling carriage is counted Kmax_id in the group of this group calling.
Each BSS in the step 205, described group call region receive VGCS_Subscrber_Position_Req (GID, Cell_list_bss is Kmax_id) after the message, according to the ready-portioned SDCCH subchannel information SDCCH_subN (k) that is stored, k is 0,1,2,., k, k+1, N * 12-1, the group calling of being designated GID for this group calling distributes one or more SDCCH subchannel, is used for the location of this group calling travelling carriage; And write down the corresponding relation of this GID, Kmax_id and this SDCCH subchannel.
In the specific implementation, can give the corresponding distribution of a group calling a plurality of SDCCH subchannels.Be that example describes only in the present embodiment distribute a SDCCH subchannel for a group calling, being assumed to be the SDCCH subchannel that current group calling distributes is SDCCH_subN (i), in each SDCCH subchannel, can report mobile position estimation information in the group every N 2 * 51 multiframe periods.Concrete which SDCCH subchannel that distributes, the concrete value that is described i can have multiple mode, for example can be by GID order value, also can be according to certain specific rule value, concrete value mode does not belong to the row of the discussion of this patent, but will guarantee that the SDCCH subchannel that is distributed is not assigned to other group callings.
The GID list information and the travelling carriage number information Num_id in the group of its subordinate group that should contract of the present invention's each group calling of the signatory travelling carriage institute of storage in advance subordinate in travelling carriage or in the SIM card; A travelling carriage may be subordinated to different group callings, and in each group calling, the Num_id of this travelling carriage correspondence is arranged all.
Step 207, at mobile station side, the travelling carriage that is in idle pulley in the described sub-district is receiving notice message by monitoring notification channel, be in the described sub-district under the call model travelling carriage by monitoring the FACCH channel receiving notice message; Travelling carriage is after receiving every notification message, judge whether the GID that carries in this notification message is subordinated to the group calling GID tabulation that this travelling carriage is stored, if, the SDCCH subchannel descriptor SDCCH_subN (i) in this notification message of mobile station decodes then, accepting network side and be to be designated the SDCCH subchannel that the group calling of GID distributes is SDCCH_subN (i), and maximum travelling carriage is counted Kmax_id in the group in the decoded notification message simultaneously; If not, this travelling carriage does not belong to the group calling of described GID sign, so this travelling carriage does not deal with.
The positional cycle that step 208, travelling carriage are determined on SDCCH_subN (i) subchannel reports and inserts pulse (AB, ACCESS BURST), and the transmission gap periods is Kmax_id * N * 102; The described AB of present embodiment has 8BIT, wherein carries the interior number information of group of this travelling carriage, and the value of 8BIT is (Num_id) Mode (256); The maximum binary number that 8 bits can be represented is 11111111, if therefore these 8 bits all are used for writing down ID in hearer's travelling carriage group, then can only represent at most 256 ID number, for organizing interior travelling carriage number greater than in 256 the group-call/multicast, group can't be represented greater than hearer's travelling carriage of 256 for interior ID number, so the interior id information of the group of hearer's travelling carriage is expressed as in the present embodiment: MODE[ID/256].If among the AB with id informations in 6 bits record hearer travelling carriage groups, then can only identify at most 64 ID number, therefore id information can be MODE[ID/64 in hearer's travelling carriage group of carrying among the AB this moment].
Travelling carriage sends AB on SDCCH_subN (i) subchannel position meets following formula (1):
((FN)Mode(Kmax_id×N×102))Integer(N×102)＝Num_id(1)
In the above-mentioned formula (1): FN is the unified frame number of current mobile station home cell, because the corresponding AB of a frame, so FN also is the position that current mobile station sends AB; N represents that the division cycle of SDCCH subchannel is N * 2 * 51 multi-frames, and SDCCH_subN (i) subchannel of N in above-mentioned notification message carries in describing; (FN) Mode (Kmax_id * N * 102) expression is got the mould of Kmax_id * N * 102 to FN, and ((FN) Mode (Kmax_id * N * 102)) Integer (N * 102) expression (FN) Mode (Kmax_id * N * 102) is divided by (N * 102) back round numbers.
During concrete enforcement, travelling carriage judges successively whether the sub-district frame number in the SDCCH subchannel meets above-mentioned formula (1), if meet then judge that this sub-district frame number reports the position frame number of AB for this travelling carriage in SDCCH_subN (i) subchannel; Otherwise judge that this sub-district frame number is not this travelling carriage reports AB in SDCCH_subN (i) subchannel a position frame number.
Step 209, BSS go up real-time listening AB at the subchannel SDCCH_subN (i) that distributes for the described group calling that is designated GID, determine the AB that receives the frame number FN of corresponding frame, and the 8BIT value of this AB that decodes.
Step 210, BSS calculate the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256) according to the N among determined FN, the subchannel descriptor SDCCH_subN (i) and the Kmax_id of GID correspondence; And whether the 8BIT value of judging this AB equate with the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256), if equate, then BSS determines that this AB is designated the positional information that the group calling travelling carriage of GID reports, execution in step 210; Otherwise, judge that this AB is an interference signal, ignores this AB, process ends.
Step 213, dispatching patcher are received VGCS_Subscrber_Position (GID, Num_id, Cell_id, TA) after the message, can be informed in the group calling that is designated GID, be designated the sub-district and the distance of this travelling carriage at the travelling carriage place of Num_id, therefore can position this travelling carriage apart from cell base station.Because the AB on the BSS real-time listening subchannel SDCCH_subN (i) therefore can locate in real time to the travelling carriage in the described group calling.If dispatching patcher is supported Presentation Function, then can on this group calling user display interface, show the information on the throne of travelling carriage in this group, and can point out the group calling travelling carriage on the throne or in the daily record of group calling location of mobile station, write down travelling carriage information on the throne to scheduler administrator.
According to above-mentioned flow process, can locate in real time all travelling carriages in the group calling, and in dispatching patcher, show.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (12)
1, a kind of method that group-calling/multicast mobile station is located in real time is applicable to the trunked communication system based on public network, it is characterized in that, and be a plurality of SDCCH subchannels with the SDCCH channel distribution; For group-call/multicast distributes the SDCCH subchannel divided, the descriptor of the SDCCH subchannel that distributed is handed down to all travelling carriages in this group-call/multicast; Described each travelling carriage is known the SDCCH subchannel that is distributed according to the descriptor of described SDCCH subchannel, determine to report the AB that carries self-position information at this from the position that reports access burst pulse train AB in distribution in the SDCCH subchannel with reporting positional cycle; Network side receives AB on the SDCCH subchannel that distributes for described group-call/multicast, the location of mobile station information of carrying according to position and this AB of AB positions this travelling carriage.
2, method according to claim 1 is characterized in that, the concrete grammar of described division SDCCH subchannel is:
Described SDCCH channel is divided in the dividing mode that N 2 * 51 multi-frames take 1 burst sequence B URST according to each SDCCH subchannel, wherein N is a positive integer.
3, method according to claim 2 is characterized in that, describedly for group-call/multicast distributes the concrete grammar of the SDCCH subchannel divided is: group-call/multicast is corresponding to distribute one or more SDCCH subchannels.
4, method according to claim 2 is characterized in that, described travelling carriage is determined from reporting the method for AB position to be in the SDCCH subchannel in distribution:
Judge whether the sub-district frame number in the described SDCCH subchannel meets following formula:
((FN)Mode(Kmax_id×N×102))Integer(N×102)＝Num_id
Wherein FN is the sub-district frame number, and Kmax_id is a maximum travelling carriage number in the group of the network side described group-call/multicast that is handed down to travelling carriage, and Num_id is the numbering of this travelling carriage in described group-call/multicast; Described Num_id is pre-configured to be stored in this travelling carriage; Pre-configured being stored in the travelling carriage or by network side of described N is handed down to travelling carriage;
If the sub-district frame number meets above-mentioned formula, judge that then the BURST that this sub-district frame number characterizes is this travelling carriage reports AB in described SDCCH subchannel position.
5, method according to claim 4 is characterized in that, the length of described AB is 8 bits, and the positional information of the travelling carriage that carries of AB is: the value that Num_id obtains after to 256 deliverys.
6, method according to claim 5 is characterized in that, network side according to the location of mobile station information that position and this AB of reception AB carries to the method that this travelling carriage positions is:
According to position that receives AB and the positional information that this AB carries this AB is carried out verification, after the verification succeeds, determine to receive the cell ID of this AB and the distance that reports travelling carriage and this cell base station of this AB by the position that receives AB, finish location this travelling carriage.
7, method according to claim 6 is characterized in that, described method of calibration is:
Calculate the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256), wherein FN is by being received AB corresponding district frame number; Whether the positional information of carrying of judging the AB received equate with the value of ((FN) Mode (Kmax_id * N * 102)) Mode (256), if equate, and verification succeeds then, otherwise verification is failed.
8, method according to claim 1 is characterized in that, the concrete grammar that described descriptor with the SDCCH subchannel that distributed is handed down to all travelling carriages in the described group-call/multicast is:
Network side periodically sends the sign of this group-call/multicast and the descriptor of the SDCCH subchannel that distributes for this group-call/multicast on the notification channel of the related sub-district of described group-call/multicast, travelling carriage in the described sub-district obtains this group-call/multicast sign and SDCCH subchannel descriptor by monitoring this notification channel, and judge by this group-call/multicast sign whether this travelling carriage is subordinated to this group-call/multicast, be then to accept described SDCCH subchannel descriptor; Otherwise, do not deal with.
9, method according to claim 1 is characterized in that, the concrete grammar that described descriptor with the SDCCH subchannel that distributed is handed down to all travelling carriages in the described group-call/multicast is:
Network side periodically sends the sign of this group-call/multicast and the descriptor of the SDCCH subchannel that distributes for this group-call/multicast on the descending Fast Associated Control Channel of the related sub-district of described group-call/multicast, travelling carriage in the described sub-district is by monitoring the descriptor that this descending Fast Associated Control Channel obtains this group-call/multicast sign and SDCCH subchannel, judging by this group-call/multicast sign whether this travelling carriage is subordinated to this group-call/multicast, is then to accept described SDCCH subchannel descriptor; Otherwise, do not deal with.
According to each described method of claim 1 to 9, it is characterized in that 10, described public network is the mobile communication network based on global system for mobile communications.
11, method according to claim 10 is characterized in that, described network side mainly comprises base station sub-system BSS, moving exchanging center MSC, group-call/multicast control register GCR and dispatching patcher; Described network side is that group-call/multicast distributes the SDCCH subchannel divided, and the concrete steps that the descriptor of the SDCCH subchannel that distributed are handed down to all travelling carriages in this group-call/multicast are:
A, dispatching patcher be maximum travelling carriage number in MSC sends the group of the sign that needs the group-call/multicast of location in real time and this group-call/multicast;
B, MSC send described group-call/multicast sign to GCR;
The corresponding relation that group-calling/multicast mobile station affiliated subdistrict tabulation that the group-call/multicast sign inquiry that c, GCR basis is received sets in advance and group-call/multicast identify; Obtain this group-call/multicast sign corresponding district tabulation; Return this cell list information to MSC;
The BSS that the cell list information inquiry that d, MSC basis is received sets in advance and the corresponding relation of cell ID, obtain the related BSS of cell list and this BSS institute respective cell sign, and maximum travelling carriage number and this BSS corresponding district identify in this BSS sends described group-call/multicast sign, group;
After e, BSS receive maximum travelling carriage number in described group-call/multicast sign, the group, this BSS corresponding district sign, distribute the SDCCH subchannel of being divided for this group-call/multicast, and in each sub-district of described cell ID appointment, issue carry distribute the notification message of the descriptor of SDCCH subchannel, and also further carry maximum travelling carriage number in described group-call/multicast sign and the group in this notification message.
12, method according to claim 11, it is characterized in that, described network side receives AB on the SDCCH subchannel that distributes for described group-call/multicast, the location of mobile station information of carrying according to position and this AB of AB to the concrete steps that this travelling carriage positions is:
A, the BSS AB that receiving mobile reports on the SDCCH subchannel that distributes for described group-call/multicast, utilize the interior maximum travelling carriage number of group of this group-call/multicast, the positional information that carry this AB the position of the descriptor of this SDCCH subchannel and the AB correspondence that receives is carried out verification, if verification succeeds then utilize this AB determine to receive the sign of the cell base station of this AB, and the distance that reports travelling carriage and this cell base station of this AB, sign with described group-call/multicast, numbering in the group of this travelling carriage, the sign of this cell base station, and the distance of this travelling carriage and this cell base station is reported to MSC, execution in step B; If verification is failed then this AB is not handled;
B, MSC be numbering, the sign of described cell base station and the distance of this travelling carriage and this cell base station in dispatching patcher is transmitted the group of described group-call/multicast sign, described travelling carriage;
C, dispatching patcher according to described group-call/multicast identify, the distance of the sign of numbering, described cell base station and this travelling carriage and this cell base station positions the travelling carriage of this group-call/multicast in the group of described travelling carriage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510075344XA CN100459794C (en) | 2005-06-10 | 2005-06-10 | Method for carrying out real-time positioning on group-calling/multicast mobile station |
| PCT/CN2006/000995 WO2006131047A1 (en) | 2005-06-10 | 2006-05-16 | A method and system for real-time locating the group calling/multicast mobile station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510075344XA CN100459794C (en) | 2005-06-10 | 2005-06-10 | Method for carrying out real-time positioning on group-calling/multicast mobile station |
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| CN1882161A true CN1882161A (en) | 2006-12-20 |
| CN100459794C CN100459794C (en) | 2009-02-04 |
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| CNB200510075344XA Expired - Fee Related CN100459794C (en) | 2005-06-10 | 2005-06-10 | Method for carrying out real-time positioning on group-calling/multicast mobile station |
Country Status (2)
| Country | Link |
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| CN (1) | CN100459794C (en) |
| WO (1) | WO2006131047A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980566A (en) * | 2010-10-26 | 2011-02-23 | 中兴通讯股份有限公司 | Method and system for realizing switching on stand-alone dedicated control channel |
| CN103024668A (en) * | 2012-11-28 | 2013-04-03 | 海能达通信股份有限公司 | Method, system and associated equipment for transmitting locator data under cluster mode |
| CN103079267A (en) * | 2012-12-28 | 2013-05-01 | 东方通信股份有限公司 | Method for quickly reporting position information of terminals in digital cluster communication system |
| WO2014082217A1 (en) * | 2012-11-28 | 2014-06-05 | 海能达通信股份有限公司 | Method, system and relevant device for transmitting positioning data in cluster mode |
| CN104704864A (en) * | 2012-08-31 | 2015-06-10 | 高通股份有限公司 | Evolved multimedia broadcast/multicast group call services(eMBMS) geo-location based group call |
| CN111601261A (en) * | 2020-01-16 | 2020-08-28 | 哈尔滨海能达科技有限公司 | Load balancing method of control channel, group call service processing method and related equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100283073B1 (en) * | 1997-10-13 | 2001-03-02 | 정선종 | A trnsmit and receive method of control plane information using the structure of medium access control frame |
| FI974153A (en) * | 1997-11-06 | 1999-05-07 | Nokia Mobile Phones Ltd | Procedure and arrangement for determining the location of a mobile station |
| US6564049B1 (en) * | 1999-05-10 | 2003-05-13 | Ericsson Inc. | Methods and systems for providing group calls with reduced setup times |
| DE10215725A1 (en) * | 2002-04-10 | 2003-11-13 | Koepenick Funkwerk Gmbh | Radio location system in trunked digital radio networks has digital trunked radio network, location regions in network, each with at least 2 radio beacons, trunked radio network users' mobile devices |
| US6684081B2 (en) * | 2002-05-10 | 2004-01-27 | Nokia Corporation | Method and system for separating control information and user data from multicast and broadcast services |
| CN1331369C (en) * | 2003-09-17 | 2007-08-08 | 华为技术有限公司 | Method for acquiring user entry into position zone by scheduling bable in group radio communication system |
| CN100334898C (en) * | 2003-09-19 | 2007-08-29 | 华为技术有限公司 | Method for monitoring user by group radio communication system |
| CN100388819C (en) * | 2004-11-18 | 2008-05-14 | 中兴通讯股份有限公司 | Grouped system and method for realizing position |
-
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- 2005-06-10 CN CNB200510075344XA patent/CN100459794C/en not_active Expired - Fee Related
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- 2006-05-16 WO PCT/CN2006/000995 patent/WO2006131047A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980566A (en) * | 2010-10-26 | 2011-02-23 | 中兴通讯股份有限公司 | Method and system for realizing switching on stand-alone dedicated control channel |
| CN101980566B (en) * | 2010-10-26 | 2015-06-10 | 中兴通讯股份有限公司 | Method and system for realizing switching on stand-alone dedicated control channel |
| CN104704864A (en) * | 2012-08-31 | 2015-06-10 | 高通股份有限公司 | Evolved multimedia broadcast/multicast group call services(eMBMS) geo-location based group call |
| CN104704864B (en) * | 2012-08-31 | 2018-09-07 | 高通股份有限公司 | Group call based on evolution type multimedia broadcast/geographical location multicast group call service (eMBMS) |
| CN103024668A (en) * | 2012-11-28 | 2013-04-03 | 海能达通信股份有限公司 | Method, system and associated equipment for transmitting locator data under cluster mode |
| WO2014082217A1 (en) * | 2012-11-28 | 2014-06-05 | 海能达通信股份有限公司 | Method, system and relevant device for transmitting positioning data in cluster mode |
| CN103024668B (en) * | 2012-11-28 | 2015-09-23 | 海能达通信股份有限公司 | Method, system and relevant device that locator data under cluster mode is transmitted |
| CN103079267A (en) * | 2012-12-28 | 2013-05-01 | 东方通信股份有限公司 | Method for quickly reporting position information of terminals in digital cluster communication system |
| CN103079267B (en) * | 2012-12-28 | 2016-07-06 | 东方通信股份有限公司 | A kind of in digital clustering communication system quick reporting terminal positional information realize method |
| CN111601261A (en) * | 2020-01-16 | 2020-08-28 | 哈尔滨海能达科技有限公司 | Load balancing method of control channel, group call service processing method and related equipment |
| CN111601261B (en) * | 2020-01-16 | 2022-04-19 | 哈尔滨海能达科技有限公司 | Load balancing method of control channel, group call service processing method and related equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100459794C (en) | 2009-02-04 |
| WO2006131047A1 (en) | 2006-12-14 |
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