CN1787659A - Method for obtaining hearing person movable station information from network in group calling/group playing procedure - Google Patents
Method for obtaining hearing person movable station information from network in group calling/group playing procedure Download PDFInfo
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- CN1787659A CN1787659A CN 200410097136 CN200410097136A CN1787659A CN 1787659 A CN1787659 A CN 1787659A CN 200410097136 CN200410097136 CN 200410097136 CN 200410097136 A CN200410097136 A CN 200410097136A CN 1787659 A CN1787659 A CN 1787659A
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Abstract
This invention discloses a method for obtaining listener mobile station information by a network side in the process of multi-call/multicast suitable for the cluster communication system based on the public network, in the multi-call/multicast region of the network side, a specialized control channel assigned by the local area is used in reporting information by the listener mobile stations in the group, which is shared by all mobile stations in the group, after setting up a multi-call/multicast, the time slot is used as the assigning unit in an assigned special control channel to distribute time slot sub-channels for it, the listener mobile stations in the group reports AB to the network side at different positions, which gets information of the mobile stations in the group based on the AB.
Description
Technical field
The present invention relates to the communication means based on the trunked communication system of public communication network, relate in particular to a kind ofly in the group-call/multicast process of trunked communication system, network side obtains the method for hearer's mobile station information.
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.
Carry out in the group-call/multicast process in existing GSM-R system, can allow speaker's travelling carriage simultaneously, the quantity of hearer's travelling carriage is unrestricted.Speaker's travelling carriage exists two-way signaling channel to be connected with network side, and network side can obtain the information of speaker's travelling carriage easily; Hearer's travelling carriage is operated under the receiving mode in participating in the group-call/multicast process, receives group-call/multicast up-downgoing Traffic Channel institute loaded information; Hearer's travelling carriage does not have up signaling channel to be connected with network side.
Therefore, GSM-R is in the process that group-call/multicast carries out, and network side can not obtain the information of hearer's travelling carriage, and whether hearer's travelling carriage participates in the situation network sides such as process of group-call/multicast and participation group-call/multicast all can not be known.And then be not easy to cluster department mobile communications in the dispatch group when carrying out group-call/multicast, and can not check the situation on the throne of travelling carriage in each group, the group-call/multicast operating efficiency is lower, can not satisfy the needs of special-purpose cluster department to the group-call/multicast business.
Summary of the invention
Main purpose of the present invention provides the method that network side in a kind of group-call/multicast process obtains hearer's mobile station information, make cluster communication system based on public network in the group-call/multicast process, network side can obtain the information of hearer's travelling carriage at any time, is convenient to the command scheduling of cluster communication system.
Network side obtains the method for hearer's mobile station information in a kind of group-call/multicast process, be applicable to trunked communication system based on public network, network side is specified the Dedicated Control Channel that is used for hearer's travelling carriage reporting information in multi-frame, and further may further comprise the steps:
A, network side are that unit specifies in multi-frame in the Dedicated Control Channel to this group-call/multicast distribution time slot subchannel with the time slot after group-call/multicast is set up; And the descriptor of the time slot subchannel that transmission distributes of the travelling carriage in this group-call/multicast;
Hearer's travelling carriage in B, the group-call/multicast receives the descriptor from the time slot subchannel of network side, determines this position of time slot subchannel in described Dedicated Control Channel; According to the corresponding relation of AB position in each hearer's travelling carriage in the predefined group-call/multicast and the time slot subchannel, determine from pairing AB position in the current time slots subchannel; And report AB to network side by determined AB position;
C, network side receive the AB that hearer's travelling carriage reports; Obtain the information of corresponding hearer's travelling carriage according to this AB.
In the steps A, described network side distributes the detailed process of time slot subchannel to be:
Determine the time slot capacity of the required time slot subchannel of current group-call/multicast in each multi-frame according to the travelling carriage number of current group-call/multicast; With the travelling carriage number of group-call/multicast time slot capacity divided by the time slot subchannel, the merchant's carry that obtains is rounded, obtain the shared multi-frame number of this time slot subchannel; Mark off the idle available time slot identical in the appointment Dedicated Control Channel in each shared multi-frame, determine these position of idle available time slot in Dedicated Control Channel with time slot capacity quantity; With above-mentioned idle time slot as institute's distributed time slot subchannel.
The descriptor of described time slot subchannel comprises: distribute the shared multi-frame number of time slot subchannel, distribute time slot capacity and this position of time slot subchannel in Dedicated Control Channel of time slot subchannel.
The descriptor of described time slot subchannel comprises: the travelling carriage number of group-call/multicast, distribute time slot capacity and this position of time slot subchannel in Dedicated Control Channel of time slot subchannel; Among the step B, hearer's travelling carriage is after the time slot subchannel descriptor of receiving from network side, further comprise: use the time slot capacity of the travelling carriage number of group-call/multicast, the merchant's carry that obtains is rounded, obtain the shared multi-frame number of this time slot subchannel divided by the time slot subchannel.
The travelling carriage number of described group-call/multicast acquires by maximum travelling carriage ID in organizing.
Described hearer's travelling carriage is the cycle with the shared multi-frame number of distributed of time slot subchannel, reports AB at determined AB positional cycle.
The corresponding relation of AB position is in described hearer's travelling carriage and the time slot subchannel: ID is corresponding with the AB sequence of positions in the time slot subchannel in the group of hearer's travelling carriage.
The information of the travelling carriage of hearer described in the step C is the whether information on the throne of hearer's travelling carriage, the described detailed process that obtains corresponding hearer's mobile station information according to AB is: the position of determining to receive AB, according to the corresponding relation of AB position in ID in the group of predefined hearer's travelling carriage and the time slot subchannel, determine ID in the pairing hearer's travelling carriage group of this AB position; Judge whether ID is effective in this group,, judge that then the corresponding hearer's travelling carriage of ID is on the throne in this group if effectively, otherwise, judge that the corresponding hearer's travelling carriage of ID is not on the throne in this group.
Carry the interior id information of group of hearer's travelling carriage among the described AB that reports of step B, among the step C, the detailed process that obtains corresponding hearer's mobile station information according to AB is: resolve the AB that receives, obtain id information in hearer's travelling carriage group of carrying among this AB, judge that the pairing hearer's travelling carriage of ID is on the throne in the group that current parsing obtains.
Described parsing after the interior id information of hearer's travelling carriage group, before judging that described hearer's travelling carriage is on the throne, further comprise: C1, network side are according to the corresponding relation of AB position in ID and the time slot subchannel in predetermined hearer's travelling carriage group, whether the position of the checking AB that receives is correct corresponding with the interior ID of hearer's travelling carriage group that this AB carries, if judge that then described hearer's travelling carriage is on the throne; Otherwise, process ends.
Further carry the access style of this hearer's travelling carriage among the AB that described hearer's travelling carriage reports, and parse in hearer's travelling carriage group after the id information described, before the step C1, further comprise: judge whether access style is effective, if, then continue execution in step C1, otherwise, current flow process finished.
Definite method of id information value is in the travelling carriage group of carrying among the described AB: the maximum number that ID can identify divided by the space that is used for Record ID among the AB in the travelling carriage actual sets, the merchant's delivery to obtaining again.
Described hearer's travelling carriage determines that oneself is at the process of corresponding A B position in described time slot subchannel: ID is divided by the time slot capacity of time slot subchannel in the usefulness hearer travelling carriage group, after the merchant's carry that obtains rounded, subtract one again, obtain the sequence numbering of affiliated multi-frame in the shared multi-frame of this time slot subchannel of the corresponding A B of ID institute in this hearer's travelling carriage group; ,, obtain the interior pairing AB of ID of this hearer's travelling carriage group and in affiliated multi-frame, distribute the particular location in the time slot subchannel to number divided by the time slot capacity of time slot subchannel with ID in hearer's travelling carriage group the merchant's delivery that obtains.
In the described steps A, network side saves as the corresponding relation of group-call/multicast institute distributed time slot subchannel and this group-call/multicast after distributing the time slot subchannel;
Among the step C, network side is after receiving AB, further comprise: the position of determining this AB, determine time slot subchannel under this AB according to this AB position, and according to time slot subchannel of being preserved and group-call/multicast under the corresponding relation of group-call/multicast is further determined the corresponding hearer's travelling carriage of this AB.
Described public network is the mobile communication network based on global system for mobile communications.
Described Dedicated Control Channel is a Separate Dedicated Control Channel.
Described network side comprises mobile switching centre, base station controller and base station transceiver;
Network side described in the steps A is divided and is distributed available time slot subchannel, and to the detailed process of travelling carriage sending time slots subchannel descriptor is:
A1, mobile switching centre send the travelling carriage number of group-call/multicast to base station controller;
A2, base station controller are divided the time slot subchannel according to the travelling carriage number of group-call/multicast, and are defined as this group-call/multicast institute distributed time slot subchannel, and send the descriptor of determined time slot subchannel to base station transceiver;
The descriptor of A3, base station transceiver receiving slot subchannel judges whether described time slot subchannel is available, if available, then activate institute's distributed time slot subchannel, and the activation that returns success to base station controller response, otherwise, return the activation response of failure to base station controller;
A4, base station controller judge whether to receive the activation response of success, if, then to the descriptor of hearer's travelling carriage sending time slots subchannel; Otherwise, process ends.
Described network side comprises mobile switching centre, base station controller and base station transceiver, the described reception of step C AB, and the process of obtaining information is: base station transceiver receives AB, and obtains the information of hearer's travelling carriage according to this AB; And behind described step C, further comprise: base station transceiver sends the information of the hearer's travelling carriage obtained by base station controller to mobile switching centre, and mobile switching centre carries out command scheduling according to this hearer's mobile station information and handles.
The present invention has following beneficial effect:
1, carries out in the process at the trunked communication system group-call/multicast owing to method of the present invention, but the information of each hearer's travelling carriage periodic report self in the group, therefore, network side can constantly obtain the state on the throne of each hearer's travelling carriage in the group, be whether hearer's travelling carriage participates in group-call/multicast, and the situation that participates in the group-call/multicast process, be convenient to cluster department dispatching communication when carrying out group-call/multicast, check each group membership's situation on the throne.
2, because hearer's travelling carriage 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 hearer's 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 speaker's travelling carriage with network side.
4, by method of the present invention, can the realization group in the mobile station state display business, that is: the state on the throne that participates in all travelling carriages of group-call/multicast all can show in real time at network side.And, can realize simultaneously cell call sign website and hearer's travelling carriage of each group-call/multicast hearer travelling carriage are positioned from the distance of sign website.
5, the present invention can use 2 * 51 multi-frames to realize goal of the invention, because the cycle of one 2 * 51 multi-frame is about 471ms, a SDCCH occupies 12 time slots in one 2 * 51 multi-frame, each time slot is used to report the information of hearer's travelling carriage, therefore can accomplish the soonest that about 40ms reports the information of hearer's travelling carriage, report speed is fast, the Real time Efficiency height.
Description of drawings
Fig. 1 reports the correspondence principle figure of position for AB in hearer's travelling carriage and the time slot subchannel in the group of group-call/multicast;
Fig. 2 be the described trunked communication system based on GSM of present embodiment in the group-call/multicast process, network side obtains the flow chart of hearer's mobile station information.
Embodiment
Further specify implementation method of the present invention below in conjunction with the drawings and specific embodiments.
Core concept of the present invention is: network side is specified the Dedicated Control Channel that is used for hearer's travelling carriage reporting information in the group-call/multicast group, this Dedicated Control Channel is shared by all travelling carriages in the group, and after a certain group-call/multicast is set up, in a Dedicated Control Channel of appointment with time slot as allocation unit, for this group-call/multicast is divided and distributed a time slot subchannel; In this time slot subchannel, each hearer's travelling carriage in this group-call/multicast reports AB in different AB positions to network side respectively, carry the information of hearer's travelling carriage among this AB, the AB that network side reports by parsing can obtain each hearer's mobile station information in this group-call/multicast.
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 information with the Separate Dedicated Control Channel in the gsm communication system, all interior travelling carriages of group-call/multicast are shared a SDCCH channel, because this SDCCH is used for hearer's travelling carriage reporting information, therefore be also referred to as hearer SDCCH.The SDCCH channel does not need to set up in advance link, hearer's travelling carriage AB that only need fix a point to report, and compole is short when used, generally has only several ms, therefore can not influence the proper communication of hearer's travelling carriage.And present embodiment is suitable for hearer's travelling carriage, and speaker's travelling carriage can directly transmit information to network side by up link.
In the gsm communication system, SDCCH is a Dedicated Signaling Channel, and the physical channel that SDCCH shone upon is a plurality of time slots in the multi-frame.As a unit physical channel, this multi-frame can be different types with a multi-frame in the present invention, in the present embodiment with 2 * 51 multi-frames as a unit physical channel, can certainly 4 * 51 multi-frames or other multi-frame as a unit physical channel.102 frames are arranged in each 2 * 51 multi-frame, be mapped with 8 SDCCH in each 2 * 51 multi-frame, be mapped among each SDCCH on 12 time slots, correspondence takies 12 AB respectively.If for 4 * 51 multi-frames, then each SDCCH is mapped on 24 time slots, and correspondence takies 24 AB, and the AB number that SDCCH takies in the multi-frame of other types by that analogy.
Fig. 1 reports the correspondence principle figure of position for AB in hearer's travelling carriage and the time slot subchannel in the group of group-call/multicast.As shown in Figure 1,2 * 51 multi-frames are launched in the mode of circulation, 102 frames are arranged in each 2 * 51 multi-frame, and be mapped with 8 SDCCH, have 12 time slots among each SDCCH, and correspondence takies 12 AB respectively.Be sake of clarity, only provide one of them SDCCH among Fig. 1.Present embodiment can be appointed as the one or more SDCCH in 2 * 51 multi-frames information reporting channel of special-purpose hearer's travelling carriage, for a group-call/multicast, only specifies the information reporting channel of a SDCCH for hearer's travelling carriage in this group-call/multicast.In a SDCCH of 2 * 51 multi-frame sequences, can divide subchannel according to time slot, for example can with the single time slot in 12 time slots of a SDCCH channel in 2 * 51 multi-frame sequences as a subchannel or a plurality of time slot as a subchannel or all time slot as a subchannel.Each subchannel is distributed to a group-call/multicast, numbering in the group of the different hearer's travelling carriages in this group-call/multicast, i.e. ID in the group, respectively with this subchannel in different AB position corresponding, and at the AB of correspondence reporting position AB.Described subchannel also claims hearer's Separate Dedicated Control Channel (LISTENER_SDCCH) time slot subchannel in this article, abbreviates the time slot subchannel as.
For example, with first time slot in 12 time slots of an appointment SDCCH channel in 2 * 51 multi-frame sequences, promptly sequence number is the time slot of " 0 ", as a time slot subchannel, is used for reporting the information of all hearer's travelling carriages of group-call/multicast.Suppose to comprise in the group-call/multicast N travelling carriage, numbering in the group, promptly ID is respectively 0 in the group, 1,2, ..., N-1, and each travelling carriage all might be hearer's travelling carriage, then sequence number is used to report ID number hearer's mobile station information for " 0 " in the group for the AB position of specifying " 0 " number time slot correspondence of SDCCH in 2 * 51 multi-frames of " 0 ", sequence number is used to report ID number hearer's mobile station information for " 1 " in the group for the AB position of specifying " 0 " number time slot correspondence of SDCCH in 2 * 51 multi-frames of " 1 ", the rest may be inferred, is used to report ID number hearer's travelling carriage for " N-1 " in the group up to sequence number for the AB position of specifying " 0 " number time slot correspondence of SDCCH in 2 * 51 multi-frames of " N-1 ".Thus, specify " 0 " number time slot of SDCCH just to form a time slot subchannel 2 * 51 multi-frame sequences of above-mentioned sequence number from " 0 " to " N-1 ", be used to report the information of a group-call/multicast.
Described time slot subchannel can be described in several ways, for example utilizes one eight bit group (OCTET) to describe the time slot subchannel in the present embodiment.Wherein, represent the type of this subchannel with high four (NH) bits, that is: each time slot subchannel shared AB number in the appointment SDCCH of one 2 * 51 multi-frame also can be described as the time slot capacity of time slot subchannel.For the SDCCH that 12 time slots are arranged, the time slot capacity of this subchannel can be 1,2,3,4,6,12; Low four (NL) bits are used for identifying the position of time slot subchannel in the appointment SDCCH of current 2 * 51 multi-frames, which subchannel among the appointment SDCCH of promptly current 2 * 51 multi-frames.The concrete value of dividing the time slot subchannel in 2 * 51 multi-frames is described as shown in table 1:
| NH (high 4 place values) | NL (low 4 place values) | The position of time slot subchannel in current 2 * 51 multi-frames appointment SDCCH |
| 1. each time slot subchannel only takies 1 AB in 2 * 51 multi-frames | Have 12 time slot subchannels, and NL is less than 12 | NL time slot subchannel |
| 2. each time slot subchannel only takies 2 * 51 | Have 6 time slot letters | NL time slot subchannel |
| 2 continuous adjacent AB in the multi-frame | The road, and NL is less than 6 | |
| 3. each time slot subchannel only takies 3 continuous adjacent AB in 2 * 51 multi-frames | Have 4 time slot subchannels, and NL is less than 4 | NL time slot subchannel |
| 4. each time slot subchannel only takies 4 continuous adjacent AB in 2 * 51 multi-frames | Have 3 time slot subchannels, and NL is less than 3 | NL time slot subchannel |
| 6. each time slot subchannel only takies 6 continuous adjacent AB in 2 * 51 multi-frames | Have 2 time slot subchannels, and NL is less than 2 | NL time slot subchannel |
| 12. each time slot subchannel only takies 12 continuous adjacent AB in 2 * 51 multi-frames | Have only a time slot subchannel, and NL equals 0 | Specifying SDCCH is an independent time slot subchannel |
Table 1
In the above-mentioned table 1, the main descriptor of time slot subchannel comprises NH and NL, represents that this time slot subchannel takies NH continuous adjacent AB in 2 * 51 multi-frames, and is NL time slot subchannel among the SDCCH.
At network side, can determine the time slot capacity of time slot subchannel according to mobile station information report cycle in the group of travelling carriage number and travelling carriage requirement in the group of group-call/multicast, in SDCCH, divide the time slot subchannel, and distribute the time slot subchannel for this group-call/multicast; For the identical group-call/multicast of travelling carriage number in the group, if the report cycle that requires is short more, the AB that then distributes a plurality of continuous adjacent is as subchannel, if the report cycle that requires is longer, but the AB that then the less several successive of quantity allotted is adjacent is as subchannel.For the group-call/multicast of the identical report cycle that requires, the AB of a plurality of continuous adjacent that the group-call/multicast that travelling carriage quantity is many in the group distributes is as subchannel, and the few group-call/multicast of travelling carriage quantity distributes the adjacent AB of less several successive as subchannel in the group.Which, then determine for specifying the subchannel among the SDCCH as for the subchannel that is distributed according to the idle condition of current SDCCH sub-channels.
For example, the cycle of one 2 * 51 multi-frame is about 471ms, and the travelling carriage number of supposing group-call/multicast is 10, if the travelling carriage report cycle is 4710ms in the requirement group, then can distribute the time slot subchannel that takies an AB.Therefore, the report cycle of this group-call/multicast is 10 2 * 51 multiframe periods, promptly about 4710ms; If the travelling carriage report cycle is 471 * 5ms in the requirement group, then can distribute the time slot subchannel that takies two AB.Therefore, the report cycle of this group-call/multicast is 52 * 51 multiframe periods, promptly about 471 * 5ms.
In addition, also can divide the time slot subchannel, and distribute to current group-call/multicast according to travelling carriage number in the group and default threshold value.The much bigger subchannels of set of dispense capacity of travelling carriage in the group, the few less subchannel of set of dispense capacity of travelling carriage in the group; For example: the group of 10 following travelling carriages is only distributed the subchannel that takies an AB, and the set of dispense of 10～20 following travelling carriages takies the subchannel of two AB, and the rest may be inferred.
Above-mentioned discloses two kinds of methods of distributing the time slot subchannels, but any based on above-mentioned with the time slot be unit divide and the scope of distributing the method for time slot subchannel all to belong to the present invention to be protected within.
In described time slot subchannel, the AB position is corresponding with numbering in hearer's travelling carriage group, and its corresponding relation can be determined by following method:
2 * 51 multi-frames of a corresponding sequence of time slot subchannel.Sequence number is respectively 0,1,2,3, ..., INTEGER[MaximumID/NH]-1, wherein, MaximumID is the interior maximum travelling carriage numbering of the group of group-call/multicast, it is travelling carriage number in the identified group, NH is the time slot capacity of this time slot subchannel, and INTEGER represents that carry rounds, for example INTEGER[3.4]=4.In addition, sequence number also can be respectively 1,2,3,4 ..., INTEGER[MaximumID/NH].In a word, the number of shared 2 * 51 multi-frames of time slot subchannel is INTEGER[MaximumID/NH].
Suppose to be numbered ID in the group of travelling carriage in the group-call/multicast, then the AB of this travelling carriage correspondence reports the position to be expressed as: (sequence numbering of multi-frame under the AB, the particular location of AB in affiliated multi-frame).Wherein, described multi-frame is 2 * 51 multi-frames, and the sequence numbering of multi-frame is according to formula: INTEGER[ID/NH under the AB]-1 determine INTEGER[ID/NH wherein] expression rounds the ID/NH carry; The particular location of AB in affiliated multi-frame can be according to formula: MODE[ID/NH] determine, represent that current multi-frame specifies the MODE[ID/12 among the SDCCH] individual AB position.Wherein MODE represents the delivery to ID/NH, for example: MODE[15/12]=3.If described 2 * 51 frame-duplicating serial numbers are 1,2,3,4 ..., INTEGER[MaximumID/NH], then the sequence numbering of multi-frame is INTEGER[ID/NH under the AB].In a word, the sequence numbering of multi-frame represents that the affiliated multi-frame of AB is the INTEGER[MaximumID/NH in the shared multi-frame sequence of time slot subchannel under the AB] individual multi-frame.
Know the state of travelling carriage in the group calling in real time in order to make network side, travelling carriage need report oneself state information by the AB positional cycle, multi-frame number in the shared multi-frame sequence of interval time slot subchannel in cycle, that is: INTEGER[MaximumID/NH] individual 2 * 51 multi-frames.The interior ID of group that need comprise this travelling carriage in the information that reports.In addition, owing to can comprise the space of 8 bits or 11 bits among AB, present embodiment adopts the AB of 11 bit space, and wherein 8 bits are used to represent ID in the group of travelling carriage, and 3 bits are used to represent other information.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].
Fig. 2 be the described trunked communication system based on GSM of present embodiment in the group-call/multicast process, network side obtains the flow chart of hearer's mobile station information, as shown in Figure 2, this flow process mainly comprises:
Step 201, mobile switching centre (MSC) are after setting up group-call/multicast, send hearer's report message (LISTENER_REPORT) for the base station controller (BSC) in the base station sub-system (BSS), maximum travelling carriage is counted MaximumID in the group comprising this group-call/multicast.
Step 202, BSC receive hearer's report message, are that unit divides the time slot subchannel in SDCCH with the time slot, and distribute the time slot subchannel for this group-call/multicast, and store the corresponding relation of this time slot subchannel and this group-call/multicast.
As previously mentioned, the detailed process of division and distribution time slot subchannel comprises in this step 202:
The time slot capacity NH that the mobile station information report cycle is determined required time slot subchannel in the group of maximum travelling carriage number, group-call/multicast customer requirements in the group according to group calling also can determine the time slot capacity NH of required time slot subchannel according to organizing interior travelling carriage number and default threshold value;
According to formula INTEGER[MaximumID/NH] determine 2 * 51 multi-frame numbers that comprise in 2 * 51 shared multi-frame sequences of this time slot subchannel;
According to NH the SDCCH of appointment in one 2 * 51 shared multi-frame is divided into 12/NH time slot subchannel, each time slot subchannel comprises NH time slot, behaviour in service according to Radio Resource in the current communication system, the time slot subchannel that available time slot that marked off, idle is formed is as to current group-call/multicast distributed time slot subchannel, and the definite position NL of time slot subchannel in described Dedicated Control Channel, the position NL of the idle available time slot of promptly being distributed in Dedicated Control Channel of distributing.
At this moment, can determine by said process: institute's distributed time slot subchannel takies INTEGER[MaximumID/NH] individual multi-frame, take NH AB in the single multi-frame at most, and be NL time slot subchannel in the SDCCH in the multi-frame.
Step 203, BSC activate message (ChanActivate) to the BTS transmitting channel, descriptor Listener_SDCCH (the SubChannel that comprises hearer SDCCH time slot subchannel in this message, MaximumID), wherein SubChannel is the description of time slot subchannel, comprises NH and NL; MaximumID is maximum travelling carriage number in the group.
Step 204, BTS receive channel activate message, be defined as current group-call/multicast distributed time slot subchannel according to SubChannel and MaximumID, judge whether the time slot subchannel described in this message is legal, whether the resource that is described time slot subchannel is available, if it is legal, then activate this subchannel, and the channel that returns success to BSC activates response (ChanActivate_Ack), comprising the descriptor Listener_SDCCH of activation time slot subchannel (SubChannel, MaximumID); Otherwise the channel that returns failure to BSC activates response.
How to judge in this step whether the time slot subchannel is legal in having known technology now, and this paper no longer narrates.
Step 205, BSC receive channel activate response, activate response according to this channel and judge that whether BTS successfully activates is current group-call/multicast institute distributed time slot subchannel, if, then the descending FACCH channel of group-call/multicast all the hearer's travelling carriages in this group-call/multicast by each sub-district in the current group-call/multicast zone periodically send hearer's report message, wherein carry the descriptor of distributing the time slot subchannel for current group-call/multicast: Listener_SDCCH (SubChannel, MaximumID); Otherwise, finish current flow process.
To send the gap length of hearer's report message be INTEGER[MaximumID/NH the BSC cycle in this step] individual 2 * 51 multi-frames.
Hearer's travelling carriage in the current group-call/multicast is after group-call/multicast is set up successfully, be in group-call/multicast channel-monitoring state always, receive the information that network side transmits, behind the hearer report message of the reception of the hearer's travelling carriage in the group-call/multicast, carry out following step 206 from BSC.
Step 206, hearer's travelling carriage obtain the time slot subchannel descriptor in hearer's report message: Listener_SDCCH (SubChannel, MaximumID); According to SubChannel, ID determines that the pairing AB of this hearer's travelling carriage reports the position in MaximumID and self group, and report the position to send hearer's reporting message (Listener_ChanReq) to BTS by triggering AB at this AB, comprising id information in the group of this hearer's travelling carriage, and the access style of this hearer's travelling carriage, the interior id information of hearer's travelling carriage group is expressed as Mode[ID/256 in the present embodiment], this access style identifies with the difference sign indicating number, represent whether this AB is effective, if in reporting process, be interfered, cause that the difference sign indicating number changes, represent that then this AB is invalid, otherwise be effective.Hearer's travelling carriage is got back to group-call/multicast channel-monitoring state at every turn at once after reporting hearer's reporting message.
In this step, determine that the corresponding A B of hearer's travelling carriage institute reports the detailed process of position to be: determine that at first report cycle is INTEGER[MaximumID/NH] sequence formed of individual 2 * 51 multi-frames; Again according to formula: INTEGER[ID/NH] the affiliated sequence numbering of 2 * 51 multi-frames in this 2 * 51 multi-frame sequence of-1 definite this travelling carriage corresponding A B; At last according to formula: MODE[ID/NH] determine the concrete sequence number of this travelling carriage corresponding A B in its affiliated 2 * 51 multi-frames.The position of determining current hearer's travelling carriage corresponding A B of institute thus is: at INTEGER[MaximumID/NH] in individual 2 * 51 multi-frames, INTEGER[ID/NH] MODE[ID/NH in the SDCCH channel of individual 2 * 51 multi-frames] individual AB position.
In addition, in the descriptor of above-mentioned time slot subchannel: the also available shared multi-frame number of the time slot subchannel INTEGER[MaximumID/NH that distributes] replace MaximumID, like this, can save the process of calculating the shared multi-frame number of time slot subchannel.
Group-calling/multicast mobile station is whenever received the hearer's report message from network side, then can carry out above-mentioned steps 206, but so hearer's travelling carriage send hearer's reporting message performance period, its cycle is described INTEGER[MaximumID/NH] doubly 2 * 51 multi-frames.In addition, in the above-mentioned steps 205, BSC also can only issue hearer's report message one time to hearer's travelling carriage, in the step 206, hearer's travelling carriage initiatively sends hearer's reporting message to network side periodically, and its cycle is described INTEGER[MaximumID/NH] doubly 2 * 51 multi-frames.
Step 207, BTS receive the AB from hearer's travelling carriage, and this AB is decoded, and obtain the content of hearer's reporting message, judge whether access style is effectively, if then continue to carry out this step, otherwise BTS thinks that current AB is not the AB that hearer's travelling carriage reports, and finishes current flow process;
BTS reports the corresponding relation of position according to AB in ID and the time slot subchannel in the definite hearer's travelling carriage group of aforesaid AB localization method, judgement comprising hearer's travelling carriage group in ID whether corresponding with the actual correct position that reports of current AB, if it is correct corresponding, then send the hearer and find (Listener_Detect) message to BSC, comprising the actual description SubChannel that reports the pairing time slot subchannel in position of current AB, and id information in hearer's travelling carriage group; Otherwise BTS thinks that current AB is that misconnection is gone into, and finishes current flow process.
In this step 207, judge ID in hearer's travelling carriage group of comprising in hearer's travelling carriage reporting message whether with current AB actual report the corresponding detailed process of correct position can for:
At first obtain id information in the hearer's travelling carriage group in hearer's reporting message, utilize formula: K+INTEGER[ID/NH]-1 and formula: MODE[ID/NH] obtain that ID answers the AB of correspondence to report the position in this hearer's travelling carriage group, if the AB that obtains reports the position identical with the actual position that reports of current AB, then ID is corresponding with the actual correct position that reports of current AB in hearer's travelling carriage group; Otherwise ID is not corresponding with the actual position that reports of current AB in hearer's travelling carriage group.
In the hearer's travelling carriage group that comprises in the above-mentioned hearer's of judgement travelling carriage reporting message ID whether with current AB actual report the corresponding detailed process of correct position also can for:
At first obtain the actual position that reports of current AB, this actual position that reports comprises: the sequence numbering of 2 * 51 multi-frames at current AB place, and current AB is in the particular location in the SDCCH channel of this 2 * 51 multi-frame, again according to above-mentioned formula INTEGER[ID/NH]-1, and formula MODE[ID/NH] carry out backwards calculation, obtain ID in hearer's travelling carriage group, and utilize formula Mode[ID/256] handle after, id information relatively in the hearer's travelling carriage group that comprises in the result who obtains and the hearer's reporting message, if identical, then ID is corresponding with the actual correct position that reports of current AB in hearer's travelling carriage group; Otherwise ID is not corresponding with the actual position that reports of current AB in hearer's travelling carriage group.
In addition, in this step 207, BTS can also calculate sign distance leaving from station (TA) value, and finds to carry in the message this TA value the hearer.In view of the above-mentioned TA value of how calculating is existing known technology, this paper no longer narrates.
The hearer that step 208, BSC receive from BTS finds message, find that by this hearer the subchannel descriptor in the message searches and the pairing group-call/multicast of this time slot subchannel, and in this group-call/multicast hearer pairing signaling connection control protocol of reporting subdistrict (SCCP) connection, report the hearer to find message to MSC, wherein carry id information and TA value in current hearer's travelling carriage group.
Step 209, MSC receive hearer from BSC find message after, read this hearer and find id information and TA value in the entrained hearer's travelling carriage group of message, and carry out the command scheduling processing with this.For example can be according to current SCCP connection and locating to corresponding group-call/multicast cell ID website (Cell ID), determine that thus in the group-call/multicast sub-district of CellID sign, hearer's travelling carriage that ID is identified in hearer's travelling carriage group is in the state on the throne that participates in group-call/multicast; Simultaneously, MSC can also further position process ends by Cell ID and TA value to this hearer's travelling carriage.
For each hearer's travelling carriage, above-mentioned steps 205 periodically takes place to the process of step 209, and the length in cycle is described multi-frame sequence period, i.e. an INTEGER[MaximumID/NH] doubly 2 * 51 multi-frames.
Among the present invention, above-mentioned hearer's travelling carriage also can comprise the information of other reflection oneself states in hearer's reporting message that network side sends, and for example, self participates in the procedure parameter information of group-call/multicast etc.
Network side of the present invention also can be according to the actual position that reports AB of hearer's travelling carriage, utilize the one-to-one relationship of AB position in above-mentioned hearer's travelling carriage and the time slot subchannel, determine ID in the group of hearer's travelling carriage of this reporting position AB, and judge whether ID is effective in this group, if effectively, hearer's travelling carriage of then determining ID correspondence in this group is a state on the throne, otherwise, end process.
In addition, all carry out as described in Figure 2 flow process in all sub-districts in the group-call/multicast zone.
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 (18)
1, network side obtains the method for hearer's mobile station information in a kind of group-call/multicast process, be applicable to trunked communication system based on public network, it is characterized in that network side is specified the Dedicated Control Channel that is used for hearer's travelling carriage reporting information in multi-frame, and further may further comprise the steps:
A, network side are that unit specifies in multi-frame in the Dedicated Control Channel to this group-call/multicast distribution time slot subchannel with the time slot after group-call/multicast is set up; And the descriptor of the time slot subchannel that transmission distributes of the travelling carriage in this group-call/multicast;
Hearer's travelling carriage in B, the group-call/multicast receives the descriptor from the time slot subchannel of network side, determines this position of time slot subchannel in described Dedicated Control Channel; According to the corresponding relation of AB position in each hearer's travelling carriage in the predefined group-call/multicast and the time slot subchannel, determine from pairing AB position in the current time slots subchannel; And report AB to network side by determined AB position;
C, network side receive the AB that hearer's travelling carriage reports; Obtain the information of corresponding hearer's travelling carriage according to this AB.
2, the method for claim 1 is characterized in that, in the steps A, described network side distributes the detailed process of time slot subchannel to be:
Determine the time slot capacity of the required time slot subchannel of current group-call/multicast in each multi-frame according to travelling carriage number in the group of current group-call/multicast;
With the time slot capacity of travelling carriage number in the group of group-call/multicast divided by the time slot subchannel, the merchant's carry that obtains is rounded, obtain the shared multi-frame number of this time slot subchannel;
Mark off the idle available time slot identical in the appointment Dedicated Control Channel in each shared multi-frame, determine these position of idle available time slot in Dedicated Control Channel with time slot capacity quantity;
With above-mentioned idle time slot as institute's distributed time slot subchannel.
3, method as claimed in claim 2, it is characterized in that the descriptor of described time slot subchannel comprises: distribute the shared multi-frame number of time slot subchannel, distribute time slot capacity and this position of time slot subchannel in Dedicated Control Channel of time slot subchannel.
4, method as claimed in claim 2, it is characterized in that the descriptor of described time slot subchannel comprises: travelling carriage number in the group of group-call/multicast, distribute time slot capacity and this position of time slot subchannel in Dedicated Control Channel of time slot subchannel;
Among the step B, hearer's travelling carriage further comprises after the time slot subchannel descriptor of receiving from network side:
With the time slot capacity of travelling carriage number in the group of group-call/multicast divided by the time slot subchannel, the merchant's carry that obtains is rounded, obtain the shared multi-frame number of this time slot subchannel.
As claim 2 or 4 described methods, it is characterized in that 5, the travelling carriage number of described group-call/multicast acquires by maximum travelling carriage ID in organizing.
6, the method for claim 1 is characterized in that, among the step B, described hearer's travelling carriage is the cycle with the shared multi-frame number of distributed of time slot subchannel, reports AB at determined AB positional cycle.
7, the method for claim 1 is characterized in that, the corresponding relation of AB position is in described hearer's travelling carriage and the time slot subchannel: ID is corresponding with the AB sequence of positions in the time slot subchannel in the group of hearer's travelling carriage.
8, want 7 described methods as right, it is characterized in that, the information of the travelling carriage of hearer described in the step C is the whether information on the throne of hearer's travelling carriage, the described detailed process that obtains corresponding hearer's mobile station information according to AB is: the position of determining to receive AB, according to the corresponding relation of AB position in ID in the group of predefined hearer's travelling carriage and the time slot subchannel, determine ID in the pairing hearer's travelling carriage group of this AB position; Judge whether ID is effective in this group,, judge that then the corresponding hearer's travelling carriage of ID is on the throne in this group if effectively, otherwise, judge that the corresponding hearer's travelling carriage of ID is not on the throne in this group.
9, method as claimed in claim 7, it is characterized in that, carry the interior id information of group of hearer's travelling carriage among the described AB that reports of step B, among the step C, the detailed process that obtains corresponding hearer's mobile station information according to AB is: resolve the AB that receives, obtain id information in hearer's travelling carriage group of carrying among this AB, judge that the pairing hearer's travelling carriage of ID is on the throne in the group that current parsing obtains.
10, method as claimed in claim 9 is characterized in that, described parsing in hearer's travelling carriage group after the id information, judge that described hearer's travelling carriage is on the throne before, further comprise:
C1, network side are according to the corresponding relation of AB position in ID and the time slot subchannel in predetermined hearer's travelling carriage group, whether the position of the checking AB that receives is correct corresponding with the interior ID of hearer's travelling carriage group that this AB carries, if judge that then described hearer's travelling carriage is on the throne; Otherwise, process ends.
11, method as claimed in claim 10, it is characterized in that, further carry the access style of this hearer's travelling carriage among the AB that described hearer's travelling carriage reports, and parse in hearer's travelling carriage group after the id information described, before the step C1, further comprise: judge whether access style is effective, if, then continue execution in step C1, otherwise, current flow process finished.
12, as claim 9 or 10 described methods, it is characterized in that, definite method of id information value is in the travelling carriage group of carrying among the described AB: the maximum number that ID can identify divided by the space that is used for Record ID among the AB in the travelling carriage actual sets, the merchant's delivery to obtaining again.
13, method as claimed in claim 7 is characterized in that, described hearer's travelling carriage is definite from the process of corresponding A B position in described time slot subchannel to be:
Divided by the time slot capacity of time slot subchannel, after the merchant's carry that obtains rounded, subtract one again with ID in hearer's travelling carriage group, obtain the sequence numbering of affiliated multi-frame in the shared multi-frame of this time slot subchannel of the corresponding A B of ID institute in this hearer's travelling carriage group;
,, obtain the interior pairing AB of ID of this hearer's travelling carriage group and in affiliated multi-frame, distribute the particular location in the time slot subchannel to number divided by the time slot capacity of time slot subchannel with ID in hearer's travelling carriage group the merchant's delivery that obtains.
14, the method for claim 1 is characterized in that,
In the steps A, network side saves as the corresponding relation of group-call/multicast institute distributed time slot subchannel and this group-call/multicast after distributing the time slot subchannel;
Among the step C, network side is after receiving AB, further comprise: the position of determining this AB, determine time slot subchannel under this AB according to this AB position, and according to time slot subchannel of being preserved and group-call/multicast under the corresponding relation of group-call/multicast is further determined the corresponding hearer's travelling carriage of this AB.
As each described method in the claim 1 to 4,6 to 11,13,14, it is characterized in that 15, described public network is the mobile communication network based on global system for mobile communications.
16, method as claimed in claim 15 is characterized in that, described Dedicated Control Channel is a Separate Dedicated Control Channel.
17, method as claimed in claim 15 is characterized in that, described network side comprises mobile switching centre, base station controller and base station transceiver;
Network side described in the steps A is divided and is distributed available time slot subchannel, and to the detailed process of travelling carriage sending time slots subchannel descriptor is:
A1, mobile switching centre travelling carriage number in the group of base station controller transmission group-call/multicast;
A2, base station controller are divided the time slot subchannel according to the travelling carriage number of group-call/multicast, and are defined as this group-call/multicast institute distributed time slot subchannel, and send the descriptor of determined time slot subchannel to base station transceiver;
The descriptor of A3, base station transceiver receiving slot subchannel judges whether described time slot subchannel is available, if available, then activate institute's distributed time slot subchannel, and the activation that returns success to base station controller response, otherwise, return the activation response of failure to base station controller;
A4, base station controller judge whether to receive the activation response of success, if, then to the descriptor of hearer's travelling carriage sending time slots subchannel; Otherwise, process ends.
18, method as claimed in claim 15, it is characterized in that described network side comprises mobile switching centre, base station controller and base station transceiver, the described reception of step C AB, and the process of obtaining information is: base station transceiver receives AB, and obtains the information of hearer's travelling carriage according to this AB; And behind described step C, further comprise: base station transceiver sends the information of the hearer's travelling carriage obtained by base station controller to mobile switching centre, and mobile switching centre carries out command scheduling according to this hearer's mobile station information and handles.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100971365A CN100370848C (en) | 2004-12-07 | 2004-12-07 | Method for obtaining hearing person movable station information from network in group calling/group playing procedure |
| PCT/CN2005/002032 WO2006060947A1 (en) | 2004-12-07 | 2005-11-28 | Method of acquiring listener ms information at network side during vgcs/vbs procedure |
| DE602005026580T DE602005026580D1 (en) | 2004-12-07 | 2005-11-28 | METHOD AND SYSTEM FOR REFERENCE OF NETWORK INFORMATION OF A HORNING MOBILE STATION DURING A VGCS / VBS METHOD |
| EP05812534A EP1855489B1 (en) | 2004-12-07 | 2005-11-28 | Method and system of acquiring listener ms information at network side during vgcs/vbs procedure |
| AT05812534T ATE499810T1 (en) | 2004-12-07 | 2005-11-28 | METHOD AND SYSTEM FOR OBTAINING NETWORK-SIDE INFORMATION FROM A LISTENING MOBILE STATION DURING A VGCS/VBS PROCEDURE |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100971365A CN100370848C (en) | 2004-12-07 | 2004-12-07 | Method for obtaining hearing person movable station information from network in group calling/group playing procedure |
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| CN1787659A true CN1787659A (en) | 2006-06-14 |
| CN100370848C CN100370848C (en) | 2008-02-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101137120B (en) * | 2007-01-29 | 2010-05-19 | 中兴通讯股份有限公司 | Resource allocation method and apparatus |
| WO2014067300A1 (en) * | 2012-10-30 | 2014-05-08 | 中兴通讯股份有限公司 | Cluster information transmission method, and corresponding cluster terminal and access point |
| CN107046685A (en) * | 2017-05-22 | 2017-08-15 | 哈尔滨海能达科技有限公司 | A kind of positional information report method and mobile station |
| WO2018213968A1 (en) * | 2017-05-22 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| 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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| CN100373854C (en) * | 2002-04-29 | 2008-03-05 | 中兴通讯股份有限公司 | Method of realizing mass business in communication system |
| EP1408658A3 (en) * | 2002-08-13 | 2009-07-29 | Innovative Sonic Limited | Handling of an unrecoverable error on a dedicated channel of a radio link |
| CN1476259A (en) * | 2002-08-16 | 2004-02-18 | ��������ͨ�ż����о�����˾ | Multi media broadcasting and method of organizing broadcasting business call finding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137120B (en) * | 2007-01-29 | 2010-05-19 | 中兴通讯股份有限公司 | Resource allocation method and apparatus |
| WO2014067300A1 (en) * | 2012-10-30 | 2014-05-08 | 中兴通讯股份有限公司 | Cluster information transmission method, and corresponding cluster terminal and access point |
| CN103796174A (en) * | 2012-10-30 | 2014-05-14 | 中兴通讯股份有限公司 | Transmission method of cluster information, corresponding cluster terminal and access node |
| CN103796174B (en) * | 2012-10-30 | 2019-01-22 | 中兴通讯股份有限公司 | The transfer approach and corresponding colony terminal and access node of a kind of cluster information |
| CN107046685A (en) * | 2017-05-22 | 2017-08-15 | 哈尔滨海能达科技有限公司 | A kind of positional information report method and mobile station |
| WO2018213968A1 (en) * | 2017-05-22 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| CN107046685B (en) * | 2017-05-22 | 2020-07-31 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| 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 |
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