CN101345911B - Method, terminal and system for reinforcing railway urgent call - Google Patents
Method, terminal and system for reinforcing railway urgent call Download PDFInfo
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- CN101345911B CN101345911B CN2007101377039A CN200710137703A CN101345911B CN 101345911 B CN101345911 B CN 101345911B CN 2007101377039 A CN2007101377039 A CN 2007101377039A CN 200710137703 A CN200710137703 A CN 200710137703A CN 101345911 B CN101345911 B CN 101345911B
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Abstract
The invention discloses a method and a terminal for realizing enhancement of rail emergency call as well as a system thereof, the inventive method comprises the steps that: the terminal updates information according to obtained line mark and sets activation states of local enhancement of rail emergency call eREC group mark or rail emergency call REC group mark at the terminal, the eREC group mark is composed of a line mark position and a REC group label position; when receiving group calling notification information, the terminal judges whether the group mark carried by group calling reference in the group calling notification information is matched with the group mark of local activation state of the terminal; if so, group calling services are added; if not, the group calling notification information is ignored. The invention can realize the enhancement of rail emergency call without altering air interface messages, thus saving realization cost for enhancement of rail emergency call.
Description
Technical field
The present invention relates to the railway emergency call technology in the communications field, relate in particular to and a kind ofly strengthen the implementation method of railway emergency call, the terminal of supporting to strengthen railway emergency call, and the realization system that strengthens railway emergency call.
Background technology
VGCS (Voice Group Call Service, voice group call service) is for realizing that a plurality of people can talk, and more people can be used as the business of hearer (hearer's quantity is unrestricted).The member who participates in the VGCS calling comprises two types: dispatcher and service-user.
The dispatcher: each VGCS can have 5 dispatchers at most in calling out, and the dispatcher that VGCS calls out can be fixed-line subscriber or mobile subscriber, is the Speech Communication of the designated lane participation group calling of its foundation through network.
Service-user: the professional mobile subscriber of signatory VGCS, the called service user participates in the Speech Communication of group calling through the group-calling channel in the group call region.
The VGCS service call only permit at any time 1 service-user and at the most 5 dispatchers talk simultaneously.The service-user that is in listen state can be through robbing up operation; As press PTT (Push To Talk) key; Obtain speaking right and participate in speech; Rob up operation and carry out according to the mode of " First come first served ", who gets earlier and speaks whom, and other service-users have only just can continue to rob up operation when up free time.The dispatcher so need not rob up operation, can participate in speech owing to have the designated lane of oneself at any time.
VGCS permission user is established to the one group of user calling that belongs to a certain specified services district and group identifier (Group ID), and dispatchers all during the calling can make a speech, but all service-users are seized a data feedback channel.Service area can be by some same MSC (Mobile Switching Center that belong to; Mobile switching centre) or the sub-district of different MS C form; Each related cell has a group-calling channel during calling, and wherein up link only supplies current speaker to use (group emission mode), and all hearers keep marquis's (group receive mode) on down link; The notification message of relevant group calling is gone up broadcasting at NCH (Notification Channel, notification channel).Be in the group calling/broadcasting service user who says speech phase and be in the group sending mode, the service-user of other monitoring is in group receive mode.
Relate to the group calling of a plurality of MSC; The main attribute of this group calling is preserved in the management that one of them MSC is responsible for calling out, and this MSC is referred to as Anchor MSC (anchor point MSC); Other MSC is Relay MSC (relay MSC), and Relay MSC preserves this group calling corresponding district tabulation under this MSC.AnchorMSC is responsible for setting up all connections, is included in the connection of the designated cell of this MSC, relevant Relay MSC and dispatching desk, and accomplishes the distribution of speech through a conference.Relay MSC only need set up a link to Anchor MSC, and Relay MSC is responsible for the distribution of affiliated subdistrict down voice.
The group calling notification message sends on the broadcast channel of sub-district, and purpose is the terminal adding group calling that notice belongs to this group.The terminal monitoring broadcast channel of idle condition, if notified message, whether the group ID that just compares in the group call reference is identical with the group ID of terminal preservation, if identical, then adds group calling.
Notification message also can be at FACCH (Fast Associated Control Channel; Fast Associated Control Channel) goes up transmission; For the terminal in other is called out, may be received in the notification message on the FACCH like this, relatively whether the group ID in the group call reference is identical with the group ID that preserve at the terminal; If identical, then leave current calling and add group calling.
Group call reference is 8 10 system numerals, can be made up of two parts, and a high position is group call region ID, and by network settings, low level is group ID.The variable-length of group ID, but the length of group ID adds that the length of area I D should equal 8.Therefore the group calling of zones of different (even physically be exactly the same area, but area I D is different) can have identical group ID.As shown in Figure 1, high 5 in the group call reference is group call region ID flag, and low 3 are group ID flag.
REC (Railway Emergency Call, railway emergency call) is professional based on group calling VGCS, and the specific group ID through system definition (for example 299) realizes railway emergency call.Each terminal activation groups ID299, when the group calling when 299 was initiated, all terminals all can add this emergency group call immediately.If other calling is being carried out at the terminal, also can be seized and added automatically railway emergency call.This calling can't be initiatively withdrawed from terminal behind the adding railway emergency call.
But; When two railway lines cross (for example at big website, parallel circuit, grade separation circuit; Situation such as the circuit of close) time; Need to distinguish the different railway emergency call of adding, and the REC scheme can't address this problem, this possibly cause the terminal to receive unnecessary railway emergency call and interrupt regular traffic.
EREC (enhanced Railway Emergency Call, the railway emergency call of enhancing) has solved the problems referred to above.In the eREC scheme, system distributes different circuit ID for different rail tracks, when train gets into corresponding circuit, changes the circuit ID of its preservation through the terminal on special installation (the for example transponder of rail and the communication of locomotive) train notified.When system initiates eREC, increase an information unit aloft in the notification message of interface to comprise circuit ID, when the terminal of support eREC has only the circuit ID in the comparison notification message identical with the circuit ID that oneself preserves, just add emergency group call, otherwise ignore.And, ignore the circuit ID in the notification message for the terminal of not supporting eREC, add emergency group call.
The inventor is in the invention process; Find that there is the realization of following defective: eREC at least in existing eREC technology; Need to increase information unit aloft in the interface message carrying circuit ID, this will cause a plurality of network equipments (like MSC, BSC (base station controller); MS (travelling carriage)) needs to revise, thereby cause the cost of realizing eREC higher.
Summary of the invention
The embodiment of the invention has disclosed a kind of implementation method that strengthens railway emergency call, realizes strengthening railway emergency call under the prerequisite that does not change air-interface information to be implemented in, and realizes cost to practice thrift, and this method comprises the steps:
The terminal is provided with the state of activation of the enhancing railway emergency call eREC group id or the railway emergency call REC group id at said terminal according to the line identification lastest imformation that acquires, and said eREC group id comprises line identification position and REC group id position;
When said terminal receives the entrained group id of group call reference in the group calling notification message; When being complementary with the group id of said terminal local activation state; Then add said group-calling service, the group id that carries in the said group call reference comprises line identification position and REC group id position;
When said terminal receives the entrained group id of group call reference in the group calling notification message, when not matching, then ignore said group calling notification message with the group id of said terminal local activation state.
The embodiment of the invention has also disclosed a kind of terminal of supporting to strengthen railway emergency call, and this terminal comprises:
The group id memory module is used for storage sets sign and state of activation thereof, and said group id is railway emergency call REC group id or strengthens railway emergency call eREC group id that said eREC group id is made up of line identification position and REC group id position;
Line identification upgrades receiver module, is used for receiving lines identification renewal information;
The group id active module is used for according to said line identification lastest imformation the state of activation of the group id in the said group id memory module being set;
Group calling notice receiver module is used to receive the group calling notification message;
Group id matching judgment module; Be used for judging the entrained group id of the group call reference of said group calling notification message whether with said group id memory module in the group id of state of activation be complementary, the group id that carries in the said group call reference comprises line identification position and REC group id position;
Group calling adds module, is used for when said group id matching judgment module is judged as the group id coupling, said terminal being added said group-calling service; Otherwise ignore said group calling notification message.
An alternative embodiment of the invention provides a kind of realization system that strengthens railway emergency call, and this system comprises:
Network side; Be used for the enhancing railway emergency call group calling request that receiving terminal is initiated; Set up group-calling service according to said group calling request; And to corresponding group call region transmission group calling notification message, the group call reference in the said group calling notification message carries group id, and said group id is made up of line identification position and REC group id position;
The terminal is used for according to the line identification lastest imformation that acquires the state of activation of said terminal eREC group id or REC group id being set; According to the group calling notification message that receives from said network side, judge that whether the entrained group id of group call reference in the said group calling notification message is complementary with the group id of local activation state; If coupling then adds said group-calling service; Otherwise ignore said group calling notification message.
The above embodiment of the present invention; Through in the group id position of group call reference, increasing the line identification position; With this line identification position and original REC group id position together as eREC group id position, and in end side according to the line identification lastest imformation, the state of activation of the eREC group id or the REC group id at terminal is set; When the terminal receives the group calling notice; Carry out matching judgment with the group id of local activation state and the entrained group id of group call reference in the group calling notice,, otherwise ignore this group calling notification message if coupling then inserts this group calling; Thereby under the situation that does not change idle message, realized the enhancing railway emergency call, practiced thrift the cost of realizing strengthening railway emergency call.
Description of drawings
Fig. 1 is the structural representation of group call reference of the prior art;
Fig. 2 A and Fig. 2 B are the structural representation of the group call reference of the embodiment of the invention;
Fig. 3 is the schematic flow sheet of the enhancing railway emergency call of the embodiment of the invention;
Fig. 4 is that the support of the embodiment of the invention strengthens the structural representation at the terminal of railway emergency call.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
In the embodiments of the invention, the structure of group call reference is revised, the group id figure place in the expansion group call reference is with the flag sign circuit ID of expansion.Shown in Fig. 2 A, with 8 ten's digits in the group call reference low 4 as the group ID flag under the eREC pattern, high 4 as group call region ID flag.In the structure of the group call reference shown in Fig. 2 A, low 3 the 0-2 position of being in low 4 is used for identifying undefined group of ID of REC pattern, is 299, the 3 like railway emergency call group ID and is used for identifying circuit ID.Group ID under the REC pattern forms the group ID under the eREC pattern with line identification ID, like the railway emergency call group that group ID 1299 expression circuit ID are 1, organizes ID 2299 and representes that circuit ID are 2 railway emergency call group.
Among Fig. 2 A, the span of circuit ID is 0-9, and wherein 1-9 can be used for identifying respectively circuits different in certain group call region, and is corresponding, and group ID is 1299～9299; Wherein 0 value can be used as reserved value; Do not identify any circuit, when certain terminal adopted 299 to initiate group calling foundation request, the group ID in the group call reference of network side group calling notification message was set to 0299; To represent that this group calling notice is to the terminal on all circuits; That is, when the group ID in the group call reference is 0299, represent that this group calling is the group calling under the REC pattern; Any support and the terminal of not supporting the eREC pattern (terminal in the indicated group call region of group call reference) all need be organized ID according to this and add group-calling service.Reserved value among the circuit ID can one also can be a plurality of, also can be other value beyond 0.
The flag of circuit ID also can be 2 even multidigit more, can corresponding minimizing group call region ID flag but increase the flag of circuit ID, satisfying under the minimum requirements of system to group call region ID flag, can suitably increase the flag of circuit ID.Shown in Fig. 2 B, in the structure of the group call reference shown in Fig. 2 B, the 0-2 position in low 5 is used for identifying undefined group of ID of REC pattern, is that 299, the 3-4 positions are used for identifying circuit ID like railway emergency call group ID.Group ID under the REC pattern forms the group ID under the eREC pattern with line identification ID.
Among Fig. 2 B, the span of circuit ID is 0-99, and wherein 1-99 can be used for identifying respectively circuits different in certain group call region, and is corresponding, and group ID is 01299～99299; Wherein 0 value can be used as reserved value; Do not identify any circuit, when certain terminal adopted 299 to initiate group calling foundation request, the group ID in the group call reference of network side group calling notification message was set to 00299; To represent that this group calling notice is to the terminal on all circuits; That is, when the group ID in the group call reference is 00299, represent that this group calling is the group calling under the REC pattern; Any support and the terminal of not supporting the eREC pattern (terminal in the indicated group call region of group call reference) all need be organized ID according to this and add group-calling service.Reserved value among the circuit ID can one also can be a plurality of, also can be other value beyond 0.
In embodiments of the present invention; The terminal is through dynamically changing the state of activation of local group ID, and after receiving the group calling notice, judges that whether the group ID in the group calling notice matees with the group ID of local activation state; Whether decision adds group-calling service, and concrete steps are as shown in Figure 3.
Referring to Fig. 3, be the schematic flow sheet of the realization group-calling service of the embodiment of the invention, concrete steps comprise:
The terminal can obtain circuit ID update signal in the following manner:
(1) terminal receives circuit ID update signal two circuit edges of regions, like assembling circuit ID signal projector on rail, as the train at the terminal circuit ID update signal through corresponding receiver receiving lines ID signal projector transmission.
(2),,, therefrom select circuit ID number as through the tabulation of the menu option on the man-machine interaction interface of terminal with the mode incoming line ID update signal of manual work through the man-machine interaction interface on the terminal.
(3) GSM-R (GSM for Railway; The railway GSM) network sends GSM-R carrying or extra data, services through eating dishes without rice or wine to the terminal; Carry circuit ID lastest imformation; Indicating terminal carries out respective sets ID and upgrades (the GSM-R network can like network train position information database, obtain circuit ID from Relational database).
A plurality of groups of ID can be preserved in terminal (like subscriber identification module-SIM), and corresponding each group ID has a status indicator, and group ID has two states: activate and non-activation.These groups are current among the ID, and the state of a group ID is arranged at most is state of activation, and other group ID state is a unactivated state.When the terminal obtains circuit ID update signal; The status indicator of organizing ID accordingly is set to activate, and the status indicator of the group ID of former state of activation is set to non-activation, if the group ID of former state of activation is the group ID that comprises circuit ID; As 1299, then can be with deleting by group ID.If the terminal obtains circuit ID update signal, and this signal indicating terminal got into a new line, and the terminal does not identify the group ID of this new line, and then need to increase in this locality earlier should group ID at the terminal, and then activates.
The eREC setup requests at step 302, network based certain terminal of GSM-R is initiated the group calling notice, and carries the group ID at this terminal through group call reference.
When the eREC calling need be set up in certain terminal, initiate the eREC setup requests to GSM-R network (handling eREC call treatment entity in the GSM-R network), wherein carry the current group ID that is in state of activation in this terminal.Network based this eREC setup requests of GSM-R is set up eREC and is called out; And send the group calling notification message to the sub-district of the group call region at this current place, terminal; And carrying group ID through the group call reference in the notification message, this group ID is that the group ID that upload at the terminal of eREC calling is set up in request.
Terminal in step 303, the corresponding group call region receives the group calling notification message that the GSM-R network sends.
Whether the group ID in step 304, the terminal judges group calling notification message is complementary with the group ID that this terminal is in state of activation, if be complementary, then execution in step 305, if do not match, then execution in step 306.
The terminal of step 305, group ID coupling adds this group calling, carries out group-calling service.
Carry out in the group-calling service process at this terminal,, can upgrade the state of activation of local group ID according to the described mode of step 301 if receive circuit ID update signal.
Below in conjunction with specific embodiment above-mentioned flow process is elaborated.
Embodiment one
Present embodiment has been described the train of supporting the eREC pattern, organizes the state of activation of ID through dynamically updating this locality, and through group ID matching judgment, adds the process of eREC calling.
The group call reference structure that adopts in the present embodiment is shown in Fig. 2 A; Wherein the value 1-9 of circuit ID position identifies circuits different in certain group call region respectively, and is corresponding, and group ID is 1299～9299; The value of circuit ID position is that 0 this position of expression is a reserved place, does not identify any circuit.
Train in the present embodiment is supported the eREC pattern, and this train adds the flow process of railway emergency call, and concrete steps comprise:
Step 401, when train A when circuit 1 enters into circuit 2, receive circuit ID update signal (as leaving the circuit ID update signal of circuit 1 and the circuit ID update signal of entry-line 2), show that train A is leaving circuit 1 entry-line 2.This train A is according to the circuit ID update signal that receives, and 1 corresponding group ID 1299 is set to unactivated state with circuit, and current circuit 2 corresponding group ID 2299 are set to state of activation.
The eREC setup requests of step 402, the network based train B of GSM-R is initiated the group calling notice, wherein carries the group ID 2299 of train B, and this group ID is the group ID that is in state of activation in train B this locality.
Initiate eREC setup requests at the train B of same group call region (promptly having identical group call region ID) to the GSM-R network with train A; The group ID of the local current state of activation of train B is 2299 (on the train B current online roads 2); Train B will organize ID 2299 and upload to the GSM-R network through setup requests, and the GSM-R network will be organized ID 2299 and send to the sub-district in this group call region through the group calling notification message.
Step 403, train A receive the group calling notification message that the GSM-R network sends.Because train A and train B belong to same group call region, can receive the group calling notification message of the eREC call request transmission of the network based train B of GSM-R.
Step 404, train A judge the group ID 2299 in the group calling notification message, and be identical with the group ID 2299 of train A local activation state, adds this group calling, carries out group-calling service.
The process that train A organizes the matching judgment of ID can be: according to beginning from last digit order number, carry out maximum matching method.For example; The group ID of current state of activation is 2299 among the train A, and then according to the figure place (4) of this group ID 2299,4 group ID 2299 with train A local activation state that low level in the group call reference is risen compare; Because low 4 also is 2299 in the group call reference, both are identical.
Carry out in the group-calling service process at train A,, then can upgrade the state of activation of local group ID according to the described mode of step 401 if receive circuit ID update signal again.
Embodiment two
Present embodiment has been described the train of supporting the eREC pattern, through dynamically updating the state of activation of local group ID, through group ID matching judgment, does not add the process that eREC calls out.
The group call reference structure that adopts in the present embodiment is shown in Fig. 2 A; Wherein the value 1-9 of circuit ID position identifies circuits different in certain group call region respectively, and is corresponding, and group ID is 1299～9299; The value of circuit ID position is that 0 this position of expression is a reserved place, does not identify any circuit.
Train in the present embodiment is supported the eREC pattern, and this train adds the flow process of railway emergency call, and concrete steps comprise:
Step 501, when train A when circuit 1 enters into circuit 2, receive circuit ID update signal.This train A is according to the circuit ID update signal that receives, and 1 corresponding group ID 1299 is set to unactivated state with circuit, and current circuit 2 corresponding group ID 2299 are set to state of activation.
The eREC setup requests of step 502, the network based train B of GSM-R is initiated the group calling notice, wherein carries the group ID 1299 of train B, and this group ID is the group ID that is in state of activation in train B this locality.
Initiate eREC setup requests at the train B of same group call region (promptly having identical group call region ID) to the GSM-R network with train A; The group ID of the local current state of activation of train B is 1299 (on the train B current online roads 1); Train B will organize ID 1299 and upload to the GSM-R network through setup requests, and the GSM-R network will be organized ID 1299 and send to the sub-district in this group call region through the group calling notification message.
Step 503, train A receive the group calling notification message that the GSM-R network sends.Train A and train B belong to same group call region, can receive the group calling notification message of the eREC call request transmission of the network based train B of GSM-R.
Step 504, train A judge the group ID 1299 in the group calling notification message, and be inequality with the group ID 2299 of train A local activation state, can ignore this group calling notification message.
The process that train A organizes the matching judgment of ID can be: according to beginning from last digit order number, carry out maximum matching method.For example; The group ID of current state of activation is 2299 among the train A, and then according to the figure place (4) of this group ID 2299,4 group ID 2299 with train A local activation state that low level in the group call reference is risen compare; Because low 4 is 1299 in the group call reference, both are inequality.
Embodiment three
Present embodiment has been described the train of supporting the eREC pattern, through dynamically updating the state of activation of local group ID, adds the process that eREC calls out with the mode that is equivalent to the REC pattern.
The group call reference structure that adopts in the present embodiment is shown in Fig. 2 A; Wherein the value 1-9 of circuit ID position identifies circuits different in certain group call region respectively, and is corresponding, and group ID is 1299～9299; The value of circuit ID position is that 0 this position of expression is a reserved place, does not identify any circuit.
Train in the present embodiment is supported the eREC pattern, and this train adds the flow process of railway emergency call, and concrete steps comprise:
Step 601, leave from circuit 1 as train A; And when not receiving the update signal of new line ID; This train A is according to the circuit ID update signal of leaving circuit 1 that receives; 1 corresponding group ID 1299 is set to unactivated state with circuit, because this train does not receive or do not receive at the appointed time the update signal of other circuit ID, then train A is set to state of activation with the group ID 299 or the group ID 0299 of this locality.
Train A can be a state of activation with the group ID 299 or group ID 0299 default setting of this locality, when receiving circuit ID update signal, can upgrade according to the state of this signal to the group ID of this locality.
The eREC setup requests of step 602, the network based train B of GSM-R is initiated the group calling notice, wherein carries the group ID 1299 of train B, and this group ID is the group ID that is in state of activation in train B this locality.
Initiate eREC setup requests at the train B of same group call region (promptly having identical group call region ID) to the GSM-R network with train A; The group ID of the local current state of activation of train B is 1299 (on the train B current online roads 1); Train B will organize ID 1299 and upload to the GSM-R network through setup requests, and the GSM-R network will be organized ID 1299 and send to the sub-district in this group call region through the group calling notification message.
Step 603, train A receive the group calling notification message that the GSM-R network sends.Train A and train B belong to same group call region, can receive the group calling notification message of the eREC call request transmission of the network based train B of GSM-R.
Step 604, train A are judged the group ID 1299 in the group calling notification message, are complementary with the group ID 299 or the group ID 0299 of train A local activation state, therefore add this group calling, carry out group-calling service.
The process that train A organizes the matching judgment of ID can be: according to beginning from last digit order number, carry out maximum matching method.For example, the group ID of current state of activation is 299 among the train A, then organizes the figure place (3) of ID 299 according to this; 3 group ID 299 with train A local activation state that low level in the group call reference is risen compare; Because low 3 is 299 in the group call reference, both are identical, therefore are judged as coupling; If the group ID of current state of activation is 0299 among the train A; Then because 0 value of the circuit ID among this group ID for reserved value, does not identify any circuit, then train A is according to the figure place (3) of removing circuit ID position among this group ID 0299; Removing 299 of circuit ID position among low level in the group call reference is risen 3 the group ID 0299 with train A local activation state compares; Because low 3 is 299 in the group call reference, both are identical, therefore are judged as coupling.
Can find out that from the above-mentioned flow process of present embodiment when the current activation group ID of train was 299 or 0299, this train can add the group calling that any train in the same group call region is initiated, and is equivalent to this train and is under the REC pattern.
Utilize this specific character, the GSM-R network can pass through transmitting line ID lastest imformation, indicates the group ID of the current state of activation of train in certain group call region to be set to 299 or 0299, makes these trains add the eREC group calling with the pattern that is equivalent to REC.
Embodiment four
Present embodiment has been described and has been supported the train of eREC pattern to add the process that REC calls out.
The group call reference structure that adopts in the present embodiment is shown in Fig. 2 A; Wherein the value 1-9 of circuit ID position identifies circuits different in certain group call region respectively, and is corresponding, and group ID is 1299～9299; The value of circuit ID position is that 0 this position of expression is a reserved place, does not identify any circuit.
Train in the present embodiment is supported the eREC pattern, and this train adds the flow process of railway emergency call, and concrete steps comprise:
Step 701, when train A when circuit 1 enters into circuit 2, receive circuit ID update signal.This train A is according to the circuit ID update signal that receives, and 1 corresponding group ID 1299 is set to unactivated state with circuit, and current circuit 2 corresponding group ID 2299 are set to state of activation.
The REC setup requests of step 702, the network based train B of GSM-R is initiated the group calling notice, wherein carries the group ID 299 of train B.Train B can be a train of supporting the eREC pattern, and the group ID that is in state of activation in train B this locality is 299, or train B is not for supporting the train of eREC pattern.
Initiate REC setup requests at the train B of same group call region (promptly having identical group call region ID) to the GSM-R network with train A; The group ID that wherein carries is 299, and the GSM-R network will be organized ID 299 and send to the sub-district in this group call region through the group calling notification message.In the group call reference in the group calling notification message, this group ID is expressed as 0299.
Step 703, train A receive the group calling notification message that the GSM-R network sends.Because train A and train B belong to same group call region, therefore can receive the group calling notification message of the eREC call request transmission of the network based train B of GSM-R.
Step 704, train A are judged the group ID 0299 in the group calling notification message, are complementary with the group ID 2299 of train A local activation state, therefore add this group calling, carry out group-calling service.
Train A is when organizing the ID matching judgment; Because the group ID in the group call reference is 0299; Do not comprise any circuit id information (0 value of circuit ID is a reserved value); Show that then current group calling notice is the notice of the group calling under the REC pattern, at this moment, train A is according to the REC group id position 299 except that circuit ID reserved place 0 among the group ID in the group call reference 0299; These 299 rise with the group ID low level of local activation state 3 (because in the group call reference group ID remove beyond the circuit ID reserved place are 3) are compared, and the group ID and the group ID 2299 of local activation state that are judged as in this group call reference are complementary.
Another kind of situation is given an example: if the group ID 0299 among the train A can be activated by acquiescence, and when train A does not receive the circuit ID update signal that inserts new line, maintenance is organized the state of activation of ID 0299.At this moment, train A receives the group calling notification message, and the group ID in the group call reference in the message is 0299, and then this terminal judges that through the matching judgment mode identical with above-mentioned flow process both are complementary, and therefore adds this group calling.
The foregoing description one to four has been described in the railway emergency call process; Support the handling process at the terminal of eREC pattern; For the terminal of not supporting the eREC pattern, there is not the process of upgrading local group ID, and after receiving the group calling notification message; Ignore the circuit ID flag among the group ID, but insert this group-calling service according to the railway emergency call group ID under the REC pattern 299.
Embodiment five
Present embodiment has been described the train of not supporting the eREC pattern and has been added the process that eREC calls out.
The group call reference structure that adopts in the present embodiment is shown in Fig. 2 A; Wherein the value 1-9 of circuit ID position identifies circuits different in certain group call region respectively, and is corresponding, and group ID is 1299～9299; If the value of circuit ID position 0 this position of expression is a reserved place, do not identify any circuit.
Train A in the present embodiment does not support the eREC pattern, and this train adds the flow process of railway emergency call, and concrete steps comprise:
The eREC setup requests of step 801, the network based train B of GSM-R is initiated the group calling notice, wherein carries the group ID 1299 of train B.This group ID is in state of activation in train B this locality.
Initiate eREC setup requests at the train B of same group call region (promptly having identical group call region ID) to the GSM-R network with train A; The group ID that wherein carries is 1299, and the GSM-R network will be organized ID 1299 and send to the sub-district in this group call region through the group calling notification message.
Step 802, train A receive the group calling notification message that the GSM-R network sends.Train A and train B belong to same group call region, can receive the group calling notification message of the eREC call request transmission of the network based train B of GSM-R.
Step 803, train A judge the group ID 1299 in the group calling notification message, and ID299 is complementary with the local group of train A, therefore adds this group calling, carries out group-calling service.
Train A is when organizing the ID matching judgment, because train A does not support eREC to call out, the therefore local group ID that preserves is 3 group ID 299.3 group ID 299 with local preservation that the low level of the group ID1299 of the group call reference during train A notifies group calling rises compare, owing to be 299 all, therefore be judged as both and mate, and therefore add this group calling.
For the embodiment of the invention also provides a kind of terminal of supporting to strengthen railway emergency call.
Referring to Fig. 4; For the support of the embodiment of the invention strengthens the terminal structure sketch map of railway emergency call, this terminal comprises: group id memory module, line identification upgrade receiver module, group id active module, group calling notice receiver module, group id matching judgment module and group calling and add module.
The group id memory module is used for storage sets sign and state of activation thereof, and said group id is REC group id or eREC group id, and said eREC group id is made up of line identification position and REC group id position;
Line identification upgrades receiver module, is used for receiving lines identification renewal information.Line identification upgrades the receiver module that receiver module can be the line identification lastest imformation of receiving lines id signal reflector transmission, and said line identification signal projector is assemblied on the moving track at this place, terminal; It can also be the idle message receiver module that line identification upgrades receiver module, is used to receive the line identification lastest imformation of network side through eating dishes without rice or wine to send; It can also be the human-computer interaction interface module that line identification upgrades receiver module, is used to receive the line identification lastest imformation of user's input.
The group id active module is used for upgrading the line identification lastest imformation that receiver module receives according to line identification, and the state of activation of the group id in the group id memory module is set, and is specially:
If the line identification lastest imformation that line identification renewal receiver module receives shows when this terminal gets into new line; Then the eREC group id that comprises this new line sign in the group id active module group id memory module is set to state of activation, and the group id of former state of activation is set to unactivated state;
Perhaps; If the line identification lastest imformation that the line identification update module receives shows this terminal and leaves current circuit; And line identification upgrades receiver module and does not receive at the appointed time when showing the line identification lastest imformation that gets into new line; The eREC group id that then comprises current line identification in the group id active module group id memory module is set to unactivated state or deletes this eREC group id, and the REC group id is set to state of activation;
Perhaps; If the line identification update module receives the line identification update instruction of this terminal or network side; Then the group id active module instructs according to this; The state of the group id that is activated by this instruction appointment in the group id memory module is set to state of activation, and the group id of former state of activation is set to unactivated state.
Group calling notice receiver module is used to receive the group calling notification message;
Group id matching judgment module, be used for judging the entrained group id of the group call reference of group calling notification message whether with the group id memory module in the group id of state of activation be complementary, be specially:
If group id matching judgment module judges that the group id of current state of activation in the group id memory module is the eREC group id; Then line identification position and the REC group id position with group id in said eREC group id and the group call reference compares; If both are identical, then be judged as coupling; Otherwise, be judged as and do not match;
Perhaps, if judge that the group id of current state of activation in the group id memory module is the REC group id, then the REC group id position with group id in this REC group id and the group call reference compares, if both are identical, then is judged as coupling; Do not match otherwise be judged as.
Because the line identification position in the group id can also be reserved value (or mask bit); Then group id matching judgment module is if judge that the line identification position in the group id is a mask bit in the group call reference; Then according to the figure place of the REC group id position of group id in the group call reference; Corresponding positions that the group id low level of state of activation in the group id memory module is risen and the REC group id position in this group call reference compare, if both are identical, then are judged as coupling; Otherwise, be judged as and do not match;
Perhaps; If judge that the line identification position of the eREC group id of state of activation in the group id memory module is a mask bit; Then according to the figure place of removing said mask bit in this eREC sign; The flag of removing said mask bit in corresponding positions that the low level of group id in the group call reference is risen and the group id memory module in the eREC sign of state of activation compares, if both are identical, then is judged as coupling; Otherwise, be judged as and do not match.
Group calling adds module, is used for when group id matching judgment module is judged as the group id coupling, this terminal being added this group-calling service; Otherwise ignore this group calling notification message.
This terminal also comprises the group calling initiation module, and this module is used for setting up request message to the group calling of network side forwarding railway urgent call, carries the group id of state of activation in the group id memory module.
For the embodiment of the invention also provides a kind of realization system that strengthens railway emergency call, this system comprises: network side and terminal.
Network side; Be used for the enhancing railway emergency call group calling request that receiving terminal is initiated; Set up group-calling service according to this group calling request; And to corresponding group call region transmission group calling notification message, the group call reference in this group calling notification message carries group id, and this group id is made up of line identification position and REC group id position;
The terminal is used for according to the line identification lastest imformation that acquires the state of activation of this terminal eREC group id or REC group id being set; According to the group calling notification message that receives from this network side, judge that whether the entrained group id of group call reference in this group calling notification message is complementary with the group id of local activation state; If coupling then adds said group-calling service; Otherwise ignore said group calling notification message.
In sum, the embodiment of the invention is through defining the group ID in the group call reference again, through the mode of expanded set ID flag; Make group ID comprise the circuit id information; And the state of activation of the group ID that the terminal can be preserved this locality according to the circuit ID lastest imformation that acquires upgraded, and after receiving the group calling notification message, the group ID of the group ID in the group calling notification message and local state of activation of preserving is carried out matching ratio; Thereby whether decision inserts this group calling; Thereby realized strengthening the flow process of railway emergency call, and compared, need not increase information unit to carry the transmission that circuit ID eats dishes without rice or wine with prior art; Thereby do not need existing entity is carried out too big improvement, thereby reduced the realization cost.In addition, the embodiment of the invention is provided with at least one retention (or circuit ID mask bit) in circuit ID, to realize that the railway emergency call under the REC pattern is carried out compatibility.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1. an implementation method that strengthens railway emergency call is characterized in that, comprising:
The terminal is provided with the state of activation of the enhancing railway emergency call eREC group id or the railway emergency call REC group id at said terminal according to the line identification lastest imformation that obtains, and said eREC group id comprises line identification position and REC group id position;
When said terminal receives the entrained group id of group call reference in the group calling notification message; When being complementary with the group id of said terminal local activation state; Then add said group-calling service, the group id that carries in the said group call reference comprises line identification position and REC group id position;
When said terminal receives the entrained group id of group call reference in the group calling notification message, when not matching, then ignore said group calling notification message with the group id of said terminal local activation state.
2. the method for claim 1 is characterized in that, said terminal is provided with the state of activation of the said group id at said terminal according to said line identification lastest imformation, comprising:
Said line identification lastest imformation shows when said terminal gets into new line that the eREC group id that comprises said new line sign is activated at said terminal, and the group id of the former state of activation of deexcitation;
Perhaps; Said line identification lastest imformation shows that said terminal leaves current circuit; And do not receive at the appointed time when showing the line identification lastest imformation that gets into new line; The group id of the former state of activation of said terminal deexcitation, said is the eREC group id that comprises said current line identification by the group id of deexcitation, and activates the REC group id at said terminal;
Perhaps, said terminal is according to the line identification lastest imformation of end side input or the line identification lastest imformation of network side transmission, and the group id that the line identification lastest imformation is indicated activates, and the group id of the former state of activation of deexcitation.
3. method as claimed in claim 2; It is characterized in that; If said terminal receives when showing the line identification lastest imformation that gets into new line; The current eREC group id that comprises said new line sign that do not exist in said terminal, to this locality is added the eREC group id that comprises said new line sign in then said terminal, and activates the said eREC group id that comprises said new line sign.
4. method as claimed in claim 2 is characterized in that, the group id of the former state of activation of said terminal deexcitation comprises:
If the group id of said former state of activation is the eREC group id, the state of the eREC group id of this former state of activation of then said terminal is set to unactivated state, or deletes the eREC group id of this former state of activation;
If the group id of said former state of activation is the REC group id, the state of the REC group id of this former state of activation of then said terminal is set to unactivated state.
5. the method for claim 1 is characterized in that, whether the group id that the said group call reference of said terminal judges carries is complementary with the group id of said terminal local activation state, comprising:
If the group id of the current state of activation in said terminal is the eREC group id; Then said terminal will this current state of activation eREC group id and said group call reference in the line identification position and the REC group id position of group id compare; If both are identical, then be judged as coupling; Otherwise, be judged as and do not match;
Perhaps, if the group id of the current state of activation in said terminal is the REC group id, then said terminal compares REC group id position in the group call reference in said terminal REC group id and the said notification message, if both are identical, then is judged as coupling; Do not match otherwise be judged as.
6. method as claimed in claim 5 is characterized in that, said line identification position is one or multidigit.
7. method as claimed in claim 5 is characterized in that, the high position of said group id is said line identification position, and low level is REC group id position; Said terminal is carried out matching judgment and is specially:
Said terminal is according to the figure place of the group id of current state of activation, and the corresponding figure place that the low level of group id in the said group call reference is risen and the group id of said state of activation compare, if both are identical, then are judged as coupling; Otherwise, be judged as and do not match.
8. method as claimed in claim 5 is characterized in that, for said line identification position is provided with mask bit; Adopt the REC group id initiation group calling request of setting up to send if said group calling notification message is a network side according to other terminal, then the line identification position of the group id in the said group call reference of network side is set to said mask bit;
Whether the group id that the said group call reference of said terminal judges carries is complementary with the group id of said terminal local activation state, comprising:
If the line identification position in the said group call reference in the group id is said mask bit; Then said terminal is according to the figure place of the REC group id position of group id in the said group call reference; Corresponding positions that the group id low level of said terminal local activation state is risen and the REC group id position in the said group call reference compare; If both are identical, then be judged as coupling; Otherwise, be judged as and do not match;
Perhaps; If the line identification position of the eREC group id of the current state of activation in said terminal is said mask bit; Then said terminal is according to the figure place of removing said mask bit in the said eREC group id; The flag of removing said mask bit in the corresponding positions that the low level of group id in the said group call reference is risen and the eREC group id at said terminal compares, if both are identical, then is judged as coupling; Otherwise, be judged as and do not match.
9. the method for claim 1 is characterized in that, the high position in the eREC group id at said terminal is said line identification position, and low level is said REC group id position; Said line identification position is one or multidigit.
10. a terminal of supporting to strengthen railway emergency call is characterized in that, comprising:
The group id memory module is used for storage sets sign and state of activation thereof, and said group id is railway emergency call REC group id or strengthens railway emergency call eREC group id that said eREC group id is made up of line identification position and REC group id position;
Line identification upgrades receiver module, is used for receiving lines identification renewal information;
The group id active module is used for according to said line identification lastest imformation the state of activation of the group id in the said group id memory module being set;
Group calling notice receiver module is used to receive the group calling notification message;
Group id matching judgment module; Be used for judging the entrained group id of the group call reference of said group calling notification message whether with said group id memory module in the group id of state of activation be complementary, the group id that carries in the said group call reference comprises line identification position and REC group id position;
Group calling adds module, is used for when said group id matching judgment module is judged as the group id coupling, said terminal being added said group-calling service; Otherwise ignore said group calling notification message.
11. terminal as claimed in claim 10; It is characterized in that; The said line identification lastest imformation that said line identification renewal receiver module receives shows when said terminal gets into new line; The eREC group id that comprises said new line sign in the said group id memory module of said group id active module is set to state of activation, and the group id of former state of activation is set to unactivated state;
Perhaps; The said line identification lastest imformation that said line identification update module receives shows that said terminal leaves current circuit; And said line identification upgrades receiver module and does not receive at the appointed time when showing the line identification lastest imformation that gets into new line; The eREC group id that comprises said current line identification in the said group id memory module of said group id active module is set to unactivated state or deletes this eREC group id, and the REC group id is set to state of activation;
Perhaps; Said line identification update module receives the line identification lastest imformation of said terminal or network side; The state of the group id that is activated by said line identification lastest imformation indication in the said group id memory module of then said group id active module is set to state of activation, and the group id of former state of activation is set to unactivated state.
12. terminal as claimed in claim 10 is characterized in that, said group id matching judgment module,
If judge that the group id of current state of activation in the said group id memory module is the eREC group id; Then line identification position and the REC group id position with group id in the eREC group id of said current state of activation and the said group call reference compares; If both are identical, then be judged as coupling; Otherwise, be judged as and do not match;
Perhaps; If judge that the group id of current state of activation in the said group id memory module is the REC group id; Then the REC group id of said current state of activation and the REC group id position in the group call reference in the said notification message are compared,, then be judged as coupling if both are identical; Do not match otherwise be judged as.
13. terminal as claimed in claim 12; It is characterized in that said group id matching judgment module is if judge that the line identification position in the group id is a mask bit in the said group call reference; Then according to the figure place of the REC group id position of group id in the said group call reference; Corresponding positions that the group id low level of state of activation in the said group id memory module is risen and the group id position in the group call reference in the said notification message compare, if both are identical, then are judged as coupling; Otherwise, be judged as and do not match;
Perhaps; If judge that the line identification position of the eREC group id of state of activation in the said group id memory module is a mask bit; Then according to the figure place of removing said mask bit in the eREC group id of said current state of activation; The flag of removing said mask bit in corresponding positions that the low level of group id in the said group call reference is risen and the said group id memory module in the eREC group id of state of activation compares, if both are identical, then is judged as coupling; Otherwise, be judged as and do not match.
14. terminal as claimed in claim 10 is characterized in that, also comprises:
The group calling initiation module is used for setting up request message to the group calling of network side forwarding railway urgent call, carries the group id of state of activation in the said group id memory module.
15. like claim 10 or 14 described terminals; It is characterized in that; Said line identification upgrades the receiver module that receiver module is the said line identification lastest imformation of receiving lines id signal reflector transmission, and said line identification signal projector is assemblied on the moving track at place, said terminal;
Perhaps, be the idle message receiver module, said idle message receiver module receives the said line identification lastest imformation of network side through eating dishes without rice or wine to send;
Perhaps, be the human-computer interaction interface module, said human-computer interaction interface module receives the said line identification lastest imformation of input.
16. a realization system that strengthens railway emergency call is characterized in that, comprising:
Network side; Be used for the enhancing railway emergency call group calling request that receiving terminal is initiated; Set up group-calling service according to said group calling request; And to corresponding group call region transmission group calling notification message, the group call reference in the said group calling notification message carries group id, and said group id is made up of line identification position and REC group id position;
The terminal is used for according to the line identification lastest imformation that acquires the state of activation of said terminal eREC group id or REC group id being set; According to the group calling notification message that receives from said network side, judge that whether the entrained group id of group call reference in the said group calling notification message is complementary with the group id of local activation state; If coupling then adds said group-calling service; Otherwise ignore said group calling notification message.
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| CN2007101377039A CN101345911B (en) | 2007-07-10 | 2007-07-10 | Method, terminal and system for reinforcing railway urgent call |
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| CN2007101377039A CN101345911B (en) | 2007-07-10 | 2007-07-10 | Method, terminal and system for reinforcing railway urgent call |
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| CN2012101067870A Division CN102665186A (en) | 2007-07-10 | 2007-07-10 | Implementation method, terminal and system for enhanced railway emergency call |
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| CN102421069A (en) * | 2010-09-28 | 2012-04-18 | 中兴通讯股份有限公司 | Method for sending group calling notification message and base station subsystem |
| CN102291689B (en) * | 2011-09-13 | 2018-07-06 | 中兴通讯股份有限公司 | Train group calling realizing method and device |
| CN103124411B (en) * | 2011-11-18 | 2017-06-20 | 中国移动通信集团内蒙古有限公司 | Road network appraisal procedure and system, road users matching process and module |
| WO2014101008A1 (en) * | 2012-12-26 | 2014-07-03 | 华为技术有限公司 | Ptt communication method, server, terminal and system |
| US10484840B2 (en) | 2016-01-20 | 2019-11-19 | Motorola Solutions, Inc. | Method and system for grouping communications between mobile communication devices |
| CN107517449B (en) * | 2017-09-01 | 2021-01-19 | 海能达通信股份有限公司 | Method for establishing temporary group call and related equipment |
| CN111086541B (en) * | 2020-03-23 | 2020-06-26 | 北京全路通信信号研究设计院集团有限公司 | Ground data processing method based on CTCS-1 grade and vehicle-mounted equipment |
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| EP0675660A1 (en) * | 1994-03-22 | 1995-10-04 | Alcatel Bell-Sdt S.A. | Method for forming groups of communication terminals in a trunked radio system |
| CN1968456A (en) * | 2006-04-29 | 2007-05-23 | 华为技术有限公司 | Group-call/multicast establishing method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0675660A1 (en) * | 1994-03-22 | 1995-10-04 | Alcatel Bell-Sdt S.A. | Method for forming groups of communication terminals in a trunked radio system |
| CN1968456A (en) * | 2006-04-29 | 2007-05-23 | 华为技术有限公司 | Group-call/multicast establishing method and system |
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