CN101345911A - 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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- CN101345911A CN101345911A CNA2007101377039A CN200710137703A CN101345911A CN 101345911 A CN101345911 A CN 101345911A CN A2007101377039 A CNA2007101377039 A CN A2007101377039A CN 200710137703 A CN200710137703 A CN 200710137703A CN 101345911 A CN101345911 A CN 101345911A
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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 a kind of implementation method that strengthens railway emergency call, support to strengthen the terminal of 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 classes: 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 by network.
Service-user: the mobile subscriber of signatory VGCS business, called service user participate in the Speech Communication of group calling by 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 by robbing up operation, as press PTT (Push To Talk) key, obtain speaking right and participate in speech, robbing up operation carries 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's who belongs to a certain specified services district and group identifier (Group ID) calling, 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, wherein up link is only used (group emission mode) for current speaker, 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 passes through the distribution that a meeting bridge is finished speech.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, like this for the terminal in other is called out, may be received in the notification message on the FACCH, relatively whether the group ID in the group call reference is identical with the group ID of terminal preservation, 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 difference) can have identical group ID.As shown in Figure 1, high 5 in the group call reference are group call region ID sign position, and low 3 are group ID sign position.
REC (Railway Emergency Call, railway emergency call) is professional based on group calling VGCS, and the specific group ID by system definition (for example 299) realizes railway emergency call.Activation groups of each terminal ID299, when the group calling when 299 was initiated, all terminals all can add this emergency group call immediately.If terminal is being carried out other calling, also can be seized and be added automatically railway emergency call.Terminal behind the adding railway emergency call can't initiatively withdraw from this calling.
But, when two railway lines cross (for example at big website, parallel circuit, the grade separation circuit, the situations such as circuit that distance is very near) time, need to distinguish the different railway emergency call of adding, and the REC scheme can't address this problem, this may cause 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 enters corresponding circuit, changes the circuit ID of its preservation by the terminal on special installation (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 to carry circuit ID, this will cause a plurality of network equipments (as 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 save, and this method comprises the steps:
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 of described terminal this locality according to the line identification lastest imformation that acquires, and described eREC group id comprises line identification position and REC group id position;
When described terminal receives the entrained group id of group call reference in the group calling notification message, when being complementary, then add described group-calling service with the group id of described terminal local activation state;
When described terminal receives the entrained group id of group call reference in the group calling notification message, when not matching, then ignore described group calling notification message with the group id of described 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 described group id is REC group id or eREC group id, and described 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 described line identification lastest imformation the state of activation of the group id in the described 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 described group calling notification message whether with described group id memory module in the group id of state of activation be complementary;
Group calling adds module, is used for when described group id matching judgment module is judged as the group id coupling described terminal being added described group-calling service; Otherwise ignore described 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 described group calling request, and to corresponding group call region transmission group calling notification message, group call reference in the described group calling notification message carries group id, and described group id is made up of line identification position and REC group id position;
Terminal is used for according to the line identification lastest imformation that acquires, and the state of activation of local eREC group id of described terminal or REC group id is set; According to the group calling notification message that receives from described network side, judge that whether the entrained group id of group call reference in the described group calling notification message is complementary with the group id of local activation state; If coupling then adds described group-calling service; Otherwise ignore described group calling notification message.
The above embodiment of the present invention, by 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 of terminal this locality is set, when terminal receives the group calling notice, the group id entrained with the group call reference in the group id of local activation state and the group calling notice carries out matching judgment, if coupling then inserts this group calling, otherwise ignore this group calling notification message, thereby under the situation that does not change idle message, realized the enhancing railway emergency call, saved 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 the structural representation that the support of the embodiment of the invention strengthens 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 sign bit-identify circuit ID of expansion.Shown in Fig. 2 A, with 8 ten's digits in the group call reference low 4 as the sign of the group ID under eREC pattern position, high 4 as group call region ID sign position.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 as railway emergency call group ID and is used for identifying circuit ID.Group ID under the REC pattern forms group ID under the eREC pattern with line identification ID, is 1 railway emergency call group as group ID 1299 expression circuit ID, and group ID 2299 expression 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 adopts 299 to initiate group calling foundation request, group ID in the group call reference of network side group calling notification message is set to 0299, to represent that this group calling notice is at the terminal on all circuits, promptly, 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 according to this group ID adding 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 sign position of circuit ID also can be 2 even multidigit more, can corresponding minimizing group call region ID sign position but increase the sign position of circuit ID, satisfying under the minimum requirements of system to group call region ID sign position, and can suitably increase the sign position 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 as railway emergency call group ID.Group ID under the REC pattern forms 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 adopts 299 to initiate group calling foundation request, group ID in the group call reference of network side group calling notification message is set to 00299, to represent that this group calling notice is at the terminal on all circuits, promptly, 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 according to this group ID adding 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, terminal is by 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 mates with the group ID of local activation state, whether decision adds group-calling service, and concrete steps 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:
Terminal can obtain circuit ID update signal in the following manner:
(1) terminal receives circuit ID update signal two circuit edges of regions, as assembling circuit ID signal projector on rail, as the train of the terminal circuit ID update signal by corresponding receiver receiving lines ID signal projector transmission.
(2),,, therefrom select circuit ID number as by the tabulation of the menu option on the terminal man-machine interaction interface with artificial mode incoming line ID update signal by the man-machine interaction interface on the terminal.
(3) GSM-R (GSM for Railway, the railway mobile communication system) network sends GSM-R carrying or extra data, services by eating dishes without rice or wine to terminal, carry circuit ID lastest imformation, indicating terminal carries out respective sets ID renewal, and (the GSM-R network can be from Relational database, as network train position information database, obtain circuit ID).
A plurality of groups of ID can be preserved in terminal this locality (as subscriber identification module-SIM card), 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 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 will should delete by group ID.If terminal obtains circuit ID update signal, and this signal indicating terminal entered a new line, and terminal this locality does not identify the group ID of this new line, and then terminal needs increase in this locality earlier this group ID, and then activates.
The eREC setup requests of step 302, network based certain terminal of GSM-R is initiated the group calling notice, and carries the group ID of this terminal by group call reference.
When certain terminal need be set up the eREC calling, 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 of 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 of terminal, and carrying group ID by the group call reference in the notification message, this group ID is that the group ID that the terminal of eREC calling is uploaded 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 this locality 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 in 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 by dynamically updating this locality, and by 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 the group ID 1299 of circuit 1 correspondence is set to unactivated state, and the group ID 2299 of current circuit 2 correspondences is 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 (train B is current on circuit 2), train B will organize ID 2299 and upload to the GSM-R network by setup requests, and the GSM-R network will be organized ID 2299 and send to sub-district in this group call region by 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 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, by dynamically updating the state of activation of local group ID, by 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 the group ID 1299 of circuit 1 correspondence is set to unactivated state, and the group ID 2299 of current circuit 2 correspondences is 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 (train B is current on circuit 1), train B will organize ID 1299 and upload to the GSM-R network by setup requests, and the GSM-R network will be organized ID 1299 and send to sub-district in this group call region by 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 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, by dynamically updating the state of activation of local group ID, adds the process that eREC calls out in 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, the group ID 1299 of circuit 1 correspondence is set to unactivated state, 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 (train B is current on circuit 1), train B will organize ID 1299 and upload to the GSM-R network by setup requests, and the GSM-R network will be organized ID 1299 and send to sub-district in this group call region by 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 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 is reserved value, do 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.
From the above-mentioned flow process of present embodiment as can be seen, 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 the group ID 1299 of circuit 1 correspondence is set to unactivated state, and the group ID 2299 of current circuit 2 correspondences is 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 sub-district in this group call region by 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 3 (because group ID are 3 beyond removing circuit ID reserved place in the group call reference) of rising with the group ID low level of local activation state are compared, be judged as the group ID in this group call reference and the group ID 2299 of local activation state and be 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 by 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 of 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 sign position 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 sub-district in this group call region by 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 schematic diagram 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 described group id is REC group id or eREC group id, and described 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 described line identification signal projector is assemblied on the moving track at this terminal place; 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 by 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 enters 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 enters 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 described 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 be 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 described mask bit in this eREC sign, the sign position of removing described 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 be 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, 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;
Terminal is used for according to the line identification lastest imformation that acquires, and the state of activation of local eREC group id of this terminal or REC group id is 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 described group-calling service; Otherwise ignore described group calling notification message.
In sum, the embodiment of the invention is by redefining the group ID in the group call reference, mode by expanded set ID sign position, make group ID comprise the circuit id information, and terminal can be upgraded the state of activation of the group ID of this locality preservation according to the circuit ID lastest imformation that acquires, after receiving the group calling notification message, group ID to group ID in the group calling notification message and local state of activation of preserving carries out matching ratio, thereby whether decision inserts this group calling, thereby realized strengthening the flow process of railway emergency call, and compared with the prior art, need not increase information unit to carry the transmission that circuit ID eats dishes without rice or wine, 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, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1, a kind of implementation method that strengthens railway emergency call is characterized in that, comprising:
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 of described terminal this locality according to the line identification lastest imformation that obtains, and described eREC group id comprises line identification position and REC group id position;
When described terminal receives the entrained group id of group call reference in the group calling notification message, when being complementary, then add described group-calling service with the group id of described terminal local activation state;
When described terminal receives the entrained group id of group call reference in the group calling notification message, when not matching, then ignore described group calling notification message with the group id of described terminal local activation state.
2, the method for claim 1 is characterized in that, described terminal is provided with the state of activation of the described group id of described terminal this locality according to described line identification lastest imformation, comprising:
Described line identification lastest imformation shows when described terminal enters new line that described terminal activates the eREC group id that comprises described new line sign, and the group id of the former state of activation of deexcitation;
Perhaps, described line identification lastest imformation shows that described terminal leaves current circuit, and do not receive at the appointed time when showing the line identification lastest imformation that enters new line, the group id of the former state of activation of described terminal deexcitation, described is the eREC group id that comprises described current line identification by the group id of deexcitation, and activates the REC group id of described terminal this locality;
Perhaps, described terminal is according to the line identification update instruction of end side input or the line identification lastest imformation of network side transmission, and the group id that described information 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 described terminal receives when showing the line identification lastest imformation that enters new line, the local current eREC group id that comprises described new line sign that do not exist of described terminal, then described terminal is added the eREC group id that comprises described new line sign to this locality, and activates described eREC group id.
4, method as claimed in claim 2 is characterized in that, the group id of the former state of activation of described terminal deexcitation comprises:
If the group id of described former state of activation is the eREC group id, the state of the described eREC group id of then described terminal is set to unactivated state, or deletes described eREC group id;
If the group id of described former state of activation is the REC group id, the state of the described REC group id of then described terminal is set to unactivated state.
5, the method for claim 1 is characterized in that, the group id in the described group call reference comprises line identification position and REC group id position; Whether the group id that the described group call reference of described terminal judges carries is complementary with the group id of described terminal local activation state, comprising:
If the group id of the current state of activation of described terminal is the eREC group id, then described terminal compares the line identification position and the REC group id position of group id in described eREC group id and the described group call reference, if both are identical, then is judged as coupling; Otherwise, be judged as and do not match;
Perhaps, if the group id of the current state of activation of described terminal is the REC group id, then described terminal compares group id in the group call reference in described terminal REC group id and the described 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, described line identification position is one or more.
7, method as claimed in claim 5 is characterized in that, the high position of described group id is described line identification position, and low level is REC group id position; Described terminal is carried out matching judgment and is specially:
Described 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 described group call reference is risen and the group id of described 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 described line identification position is provided with mask bit; Adopt the REC group id initiation group calling request of setting up to send if described group calling notification message is a network side according to other terminal, then the line identification position of the group id in the described group call reference of network side is set to described mask bit;
Whether the group id that the described group call reference of described terminal judges carries is complementary with the group id of described terminal local activation state, comprising:
If the line identification position in the described group call reference in the group id is described mask bit, then described terminal is according to the figure place of the REC group id position of group id in the described group call reference, corresponding positions that the group id low level of described terminal local activation state is risen and the REC group id position in the described 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 of described terminal is described mask bit, then described terminal is according to the figure place of removing described mask bit in the described eREC sign, the sign position of removing described mask bit in corresponding positions that the low level of group id in the described group call reference is risen and the eREC sign of described terminal this locality compares, if both are identical, then be 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 of described terminal this locality is described line identification position, and low level is described REC group id position; Described line identification position is one or more.
10, a kind of 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 described group id is REC group id or eREC group id, and described 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 described line identification lastest imformation the state of activation of the group id in the described 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 described group calling notification message whether with described group id memory module in the group id of state of activation be complementary;
Group calling adds module, is used for when described group id matching judgment module is judged as the group id coupling described terminal being added described group-calling service; Otherwise ignore described group calling notification message.
11, terminal as claimed in claim 10, it is characterized in that, the described line identification lastest imformation that described line identification renewal receiver module receives shows when described terminal enters new line, the eREC group id that comprises described new line sign in the described group id memory module of described 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 described line identification lastest imformation that described line identification update module receives shows that described terminal leaves current circuit, and described line identification upgrades receiver module and does not receive at the appointed time when showing the line identification lastest imformation that enters new line, the eREC group id that comprises described current line identification in the described group id memory module of described 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, described line identification update module receives the line identification lastest imformation of described terminal or network side, the state of the group id that is activated by described information indication in the described group id memory module of then described 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, described group id matching judgment module,
If judge that the group id of current state of activation in the described group id memory module is the eREC group id, then line identification position and the REC group id position with group id in described eREC group id and the described group call reference compares, if both are identical, then is judged as coupling; Otherwise, be judged as and do not match;
Perhaps,, then group id in the group call reference in described REC group id and the described notification message is compared,, then be judged as coupling if both are identical if judge that the group id of current state of activation in the described group id memory module is the REC group id; Do not match otherwise be judged as.
13, terminal as claimed in claim 12, it is characterized in that, described group id matching judgment module, if judge that the line identification position in the group id is a mask bit in the described group call reference, then according to the figure place of the REC group id position of group id in the described group call reference, corresponding positions that the group id low level of state of activation in the described group id memory module is risen and the group id position in the group call reference in the described 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 described group id memory module is a mask bit, then according to the figure place of removing described mask bit in the described eREC sign, the sign position of removing described mask bit in corresponding positions that the low level of group id in the described group call reference is risen and the described group id memory module in the eREC sign of state of activation compares, if both are identical, then be 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 described group id memory module.
15, as claim 10 or 14 described terminals, it is characterized in that, described line identification upgrades the receiver module that receiver module is the described line identification lastest imformation of receiving lines id signal reflector transmission, and described line identification signal projector is assemblied on the moving track at described terminal place;
Perhaps, be the idle message receiver module, described idle message receiver module receives the described line identification lastest imformation of network side by eating dishes without rice or wine to send;
Perhaps, be the human-computer interaction interface module, described human-computer interaction interface module receives the described line identification lastest imformation of input.
16, a kind of 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 described group calling request, and to corresponding group call region transmission group calling notification message, group call reference in the described group calling notification message carries group id, and described group id is made up of line identification position and REC group id position;
Terminal is used for according to the line identification lastest imformation that acquires, and the state of activation of local eREC group id of described terminal or REC group id is set; According to the group calling notification message that receives from described network side, judge that whether the entrained group id of group call reference in the described group calling notification message is complementary with the group id of local activation state; If coupling then adds described group-calling service; Otherwise ignore described 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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| CN111086541A (en) * | 2020-03-23 | 2020-05-01 | 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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